From bd5f6a344daff10b58dfefad628e4b203edeb831 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 28 Apr 2013 14:05:22 +0300
Subject: iwlwifi: move BUILD_RAxTID to transport

It has nothing to do in FW API.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/commands.h b/drivers/net/wireless/iwlwifi/dvm/commands.h
index 95ca026..19f3ce7 100644
--- a/drivers/net/wireless/iwlwifi/dvm/commands.h
+++ b/drivers/net/wireless/iwlwifi/dvm/commands.h
@@ -838,10 +838,6 @@ struct iwl_qosparam_cmd {
 #define STA_MODIFY_DELBA_TID_MSK	0x10
 #define STA_MODIFY_SLEEP_TX_COUNT_MSK	0x20
 
-/* Receiver address (actually, Rx station's index into station table),
- * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
-#define BUILD_RAxTID(sta_id, tid)	(((sta_id) << 4) + (tid))
-
 /* agn */
 struct iwl_keyinfo {
 	__le16 key_flags;
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index c5e3029..03ad2f4 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1045,6 +1045,10 @@ static inline void iwl_pcie_txq_set_inactive(struct iwl_trans *trans,
 		(1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
 }
 
+/* Receiver address (actually, Rx station's index into station table),
+ * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
+#define BUILD_RAxTID(sta_id, tid)	(((sta_id) << 4) + (tid))
+
 void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo,
 			       int sta_id, int tid, int frame_limit, u16 ssn)
 {
-- 
cgit v0.10.2


From 7df15b1e6f5994115bee369a527b50ec3521a39b Mon Sep 17 00:00:00 2001
From: Hila Gonen <hila.gonen@intel.com>
Date: Wed, 12 Dec 2012 11:16:19 +0200
Subject: iwlwifi: mvm: Add beacon filtering support

Add iwl_beacon_filter_cmd struct, disable and enable beacon
filtering as needed.

Signed-off-by: Hila Gonen <hila.gonen@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
index 81fe45f..90fdfcd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
@@ -117,4 +117,80 @@ struct iwl_powertable_cmd {
 	__le32 lprx_rssi_threshold;
 } __packed;
 
+/**
+ * struct iwl_beacon_filter_cmd
+ * REPLY_BEACON_FILTERING_CMD = 0xd2 (command)
+ * @id_and_color: MAC contex identifier
+ * @bf_energy_delta: Used for RSSI filtering, if in 'normal' state. Send beacon
+ *      to driver if delta in Energy values calculated for this and last
+ *      passed beacon is greater than this threshold. Zero value means that
+ *      the Energy change is ignored for beacon filtering, and beacon will
+ *      not be forced to be sent to driver regardless of this delta. Typical
+ *      energy delta 5dB.
+ * @bf_roaming_energy_delta: Used for RSSI filtering, if in 'roaming' state.
+ *      Send beacon to driver if delta in Energy values calculated for this
+ *      and last passed beacon is greater than this threshold. Zero value
+ *      means that the Energy change is ignored for beacon filtering while in
+ *      Roaming state, typical energy delta 1dB.
+ * @bf_roaming_state: Used for RSSI filtering. If absolute Energy values
+ *      calculated for current beacon is less than the threshold, use
+ *      Roaming Energy Delta Threshold, otherwise use normal Energy Delta
+ *      Threshold. Typical energy threshold is -72dBm.
+ * @bf_temperature_delta: Send Beacon to driver if delta in temperature values
+ *      calculated for this and the last passed beacon is greater than  this
+ *      threshold. Zero value means that the temperature changeis ignored for
+ *      beacon filtering; beacons will not be  forced to be sent to driver
+ *      regardless of whether its temerature has been changed.
+ * @bf_enable_beacon_filter: 1, beacon filtering is enabled; 0, disabled.
+ * @bf_filter_escape_timer: Send beacons to to driver if no beacons were passed
+ *      for a specific period of time. Units: Beacons.
+ * @ba_escape_timer: Fully receive and parse beacon if no beacons were passed
+ *      for a longer period of time then this escape-timeout. Units: Beacons.
+ * @ba_enable_beacon_abort: 1, beacon abort is enabled; 0, disabled.
+ */
+struct iwl_beacon_filter_cmd {
+	u8 bf_energy_delta;
+	u8 bf_roaming_energy_delta;
+	u8 bf_roaming_state;
+	u8 bf_temperature_delta;
+	u8 bf_enable_beacon_filter;
+	u8 bf_debug_flag;
+	__le16 reserved1;
+	__le32 bf_escape_timer;
+	__le32 ba_escape_timer;
+	u8 ba_enable_beacon_abort;
+	u8 reserved2[3];
+} __packed;
+
+/* Beacon filtering and beacon abort */
+#define IWL_BF_ENERGY_DELTA_DEFAULT 5
+#define IWL_BF_ENERGY_DELTA_MAX 255
+#define IWL_BF_ENERGY_DELTA_MIN 0
+
+#define IWL_BF_ROAMING_ENERGY_DELTA_DEFAULT 1
+#define IWL_BF_ROAMING_ENERGY_DELTA_MAX 255
+#define IWL_BF_ROAMING_ENERGY_DELTA_MIN 0
+
+#define IWL_BF_ROAMING_STATE_DEFAULT 72
+#define IWL_BF_ROAMING_STATE_MAX 255
+#define IWL_BF_ROAMING_STATE_MIN 0
+
+#define IWL_BF_TEMPERATURE_DELTA_DEFAULT 5
+#define IWL_BF_TEMPERATURE_DELTA_MAX 255
+#define IWL_BF_TEMPERATURE_DELTA_MIN 0
+
+#define IWL_BF_ENABLE_BEACON_FILTER_DEFAULT 1
+
+#define IWL_BF_DEBUG_FLAG_DEFAULT 0
+
+#define IWL_BF_ESCAPE_TIMER_DEFAULT 50
+#define IWL_BF_ESCAPE_TIMER_MAX 1024
+#define IWL_BF_ESCAPE_TIMER_MIN 0
+
+#define IWL_BA_ESCAPE_TIMER_DEFAULT 3
+#define IWL_BA_ESCAPE_TIMER_MAX 1024
+#define IWL_BA_ESCAPE_TIMER_MIN 0
+
+#define IWL_BA_ENABLE_BEACON_ABORT_DEFAULT 1
+
 #endif
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 191dcae..6031dbf 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -170,6 +170,8 @@ enum {
 	BT_COEX_PROT_ENV = 0xcd,
 	BT_PROFILE_NOTIFICATION = 0xce,
 
+	REPLY_BEACON_FILTERING_CMD = 0xd2,
+
 	REPLY_DEBUG_CMD = 0xf0,
 	DEBUG_LOG_MSG = 0xf7,
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index dd158ec..e2cf6d9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -530,6 +530,17 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 	 */
 	iwl_mvm_power_update_mode(mvm, vif);
 
+	/* beacon filtering */
+	if (!mvm->bf_allowed_vif &&
+	    vif->type == NL80211_IFTYPE_STATION && !vif->p2p){
+		mvm->bf_allowed_vif = mvmvif;
+		vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
+	}
+
+	ret = iwl_mvm_disable_beacon_filter(mvm, vif);
+	if (ret)
+		goto out_release;
+
 	/*
 	 * P2P_DEVICE interface does not have a channel context assigned to it,
 	 * so a dedicated PHY context is allocated to it and the corresponding
@@ -646,6 +657,11 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 
+	if (mvm->bf_allowed_vif == mvmvif) {
+		mvm->bf_allowed_vif = NULL;
+		vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
+	}
+
 	iwl_mvm_vif_dbgfs_clean(mvm, vif);
 
 	/*
@@ -984,9 +1000,13 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 					     mvmvif->phy_ctxt->channel->band);
 	} else if (old_state == IEEE80211_STA_ASSOC &&
 		   new_state == IEEE80211_STA_AUTHORIZED) {
+		/* enable beacon filtering */
+		WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
 		ret = 0;
 	} else if (old_state == IEEE80211_STA_AUTHORIZED &&
 		   new_state == IEEE80211_STA_ASSOC) {
+		/* disable beacon filtering */
+		WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif));
 		ret = 0;
 	} else if (old_state == IEEE80211_STA_ASSOC &&
 		   new_state == IEEE80211_STA_AUTH) {
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 8269bc5..4fc64d5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -266,6 +266,12 @@ struct iwl_mvm {
 
 	unsigned long status;
 
+	/*
+	 * for beacon filtering -
+	 * currently only one interface can be supported
+	 */
+	struct iwl_mvm_vif *bf_allowed_vif;
+
 	enum iwl_ucode_type cur_ucode;
 	bool ucode_loaded;
 	bool init_ucode_run;
@@ -533,4 +539,10 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   enum ieee80211_rssi_event rssi_event);
 void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 
+/* beacon filtering */
+int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
+				 struct ieee80211_vif *vif);
+int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
+				  struct ieee80211_vif *vif);
+
 #endif /* __IWL_MVM_H__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index fe031d3..5bf1eaf 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -292,6 +292,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(BT_COEX_PROT_ENV),
 	CMD(BT_PROFILE_NOTIFICATION),
 	CMD(BT_CONFIG),
+	CMD(REPLY_BEACON_FILTERING_CMD),
 };
 #undef CMD
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index ed77e43..30a5c27 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -178,3 +178,70 @@ int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_ASYNC,
 				    sizeof(cmd), &cmd);
 }
+
+static int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
+					  struct iwl_beacon_filter_cmd *cmd)
+{
+	int ret;
+
+	ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, CMD_SYNC,
+				   sizeof(struct iwl_beacon_filter_cmd), cmd);
+
+	if (!ret) {
+		IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
+				cmd->ba_enable_beacon_abort);
+		IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
+				cmd->ba_escape_timer);
+		IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
+				cmd->bf_debug_flag);
+		IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
+				cmd->bf_enable_beacon_filter);
+		IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
+				cmd->bf_energy_delta);
+		IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
+				cmd->bf_escape_timer);
+		IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
+				cmd->bf_roaming_energy_delta);
+		IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
+				cmd->bf_roaming_state);
+		IWL_DEBUG_POWER(mvm, "bf_temperature_delta is: %d\n",
+				cmd->bf_temperature_delta);
+	}
+	return ret;
+}
+
+int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
+				 struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_beacon_filter_cmd cmd = {
+		.bf_enable_beacon_filter = 1,
+		.bf_energy_delta = IWL_BF_ENERGY_DELTA_DEFAULT,
+		.bf_roaming_energy_delta = IWL_BF_ROAMING_ENERGY_DELTA_DEFAULT,
+		.bf_roaming_state = IWL_BF_ROAMING_STATE_DEFAULT,
+		.bf_temperature_delta = IWL_BF_TEMPERATURE_DELTA_DEFAULT,
+		.bf_debug_flag = IWL_BF_DEBUG_FLAG_DEFAULT,
+		.bf_escape_timer = cpu_to_le32(IWL_BF_ESCAPE_TIMER_DEFAULT),
+		.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_DEFAULT),
+		.ba_enable_beacon_abort = IWL_BA_ENABLE_BEACON_ABORT_DEFAULT,
+	};
+
+	if (mvmvif != mvm->bf_allowed_vif ||
+	    vif->type != NL80211_IFTYPE_STATION || vif->p2p)
+		return 0;
+
+	return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
+}
+
+int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
+				  struct ieee80211_vif *vif)
+{
+	struct iwl_beacon_filter_cmd cmd = {
+		.bf_enable_beacon_filter = 0,
+	};
+
+	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
+		return 0;
+
+	return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
+}
-- 
cgit v0.10.2


From c571573a027bb65ac415141f919df3c0fa0fedb4 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 30 Apr 2013 14:33:04 +0300
Subject: iwlwifi: pcie: prefer to load the firmware in one shot

Users complained about allocation failures, so we loaded
the firmware in small chunks (PAGE_SIZE). This makes the
firmware restart considerably slower.
So, always prefer to load it in one shot allocating a big
chunk of coherent, and use smaller chunks as a fallback
solution.

On my laptop, this reduces the fw loading time from 120ms
to 20ms.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Moshe Island <moshe.island@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 50ba0a4..e536519 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -405,20 +405,27 @@ static int iwl_pcie_load_section(struct iwl_trans *trans, u8 section_num,
 {
 	u8 *v_addr;
 	dma_addr_t p_addr;
-	u32 offset;
+	u32 offset, chunk_sz = section->len;
 	int ret = 0;
 
 	IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n",
 		     section_num);
 
-	v_addr = dma_alloc_coherent(trans->dev, PAGE_SIZE, &p_addr, GFP_KERNEL);
-	if (!v_addr)
-		return -ENOMEM;
+	v_addr = dma_alloc_coherent(trans->dev, chunk_sz, &p_addr,
+				    GFP_KERNEL | __GFP_NOWARN);
+	if (!v_addr) {
+		IWL_DEBUG_INFO(trans, "Falling back to small chunks of DMA\n");
+		chunk_sz = PAGE_SIZE;
+		v_addr = dma_alloc_coherent(trans->dev, chunk_sz,
+					    &p_addr, GFP_KERNEL);
+		if (!v_addr)
+			return -ENOMEM;
+	}
 
-	for (offset = 0; offset < section->len; offset += PAGE_SIZE) {
+	for (offset = 0; offset < section->len; offset += chunk_sz) {
 		u32 copy_size;
 
-		copy_size = min_t(u32, PAGE_SIZE, section->len - offset);
+		copy_size = min_t(u32, chunk_sz, section->len - offset);
 
 		memcpy(v_addr, (u8 *)section->data + offset, copy_size);
 		ret = iwl_pcie_load_firmware_chunk(trans,
@@ -432,7 +439,7 @@ static int iwl_pcie_load_section(struct iwl_trans *trans, u8 section_num,
 		}
 	}
 
-	dma_free_coherent(trans->dev, PAGE_SIZE, v_addr, p_addr);
+	dma_free_coherent(trans->dev, chunk_sz, v_addr, p_addr);
 	return ret;
 }
 
-- 
cgit v0.10.2


From fe0f2de30cc3417794517afe45f57e851b3188ae Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Thu, 21 Mar 2013 10:23:52 +0200
Subject: iwlwifi: mvm: Loosen the channel context/phy context coupling

In current implementation, the phy context is tightly coupled
with the channel context. This complicates the possibility of
using the same phy context for both netdev interfaces and the P2P
Device interface. To loosen this coupling:

1. Manage all the phy contexts in the mvm op mode, and only save
   the phy context id in the chanctx memory.
2. Reference count the phy contexts and free them only when they
   are not longer used (both by mac80211 and P2P Device).

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index e2cf6d9..c1ed5c3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -127,6 +127,17 @@ static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
 };
 #endif
 
+static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
+{
+	int i;
+
+	memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
+	for (i = 0; i < NUM_PHY_CTX; i++) {
+		mvm->phy_ctxts[i].id = i;
+		mvm->phy_ctxts[i].ref = 0;
+	}
+}
+
 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 {
 	struct ieee80211_hw *hw = mvm->hw;
@@ -158,7 +169,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 
 	hw->sta_data_size = sizeof(struct iwl_mvm_sta);
 	hw->vif_data_size = sizeof(struct iwl_mvm_vif);
-	hw->chanctx_data_size = sizeof(struct iwl_mvm_phy_ctxt);
+	hw->chanctx_data_size = sizeof(u16);
 
 	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 		BIT(NL80211_IFTYPE_P2P_CLIENT) |
@@ -193,6 +204,8 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 		hw->wiphy->n_addresses++;
 	}
 
+	iwl_mvm_reset_phy_ctxts(mvm);
+
 	/* we create the 802.11 header and a max-length SSID element */
 	hw->wiphy->max_scan_ie_len =
 		mvm->fw->ucode_capa.max_probe_length - 24 - 34;
@@ -345,8 +358,7 @@ static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
 	iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
 	spin_unlock_bh(&mvm->time_event_lock);
 
-	if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
-		mvmvif->phy_ctxt = NULL;
+	mvmvif->phy_ctxt = NULL;
 }
 
 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
@@ -363,6 +375,9 @@ static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
 		mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
 		iwl_mvm_cleanup_iterator, mvm);
 
+	mvm->p2p_device_vif = NULL;
+
+	iwl_mvm_reset_phy_ctxts(mvm);
 	memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
 	memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
 
@@ -456,6 +471,20 @@ static void iwl_mvm_power_update_iterator(void *data, u8 *mac,
 	iwl_mvm_power_update_mode(mvm, vif);
 }
 
+static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
+{
+	u16 i;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	for (i = 0; i < NUM_PHY_CTX; i++)
+		if (!mvm->phy_ctxts[i].ref)
+			return &mvm->phy_ctxts[i];
+
+	IWL_ERR(mvm, "No available PHY context\n");
+	return NULL;
+}
+
 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif)
 {
@@ -550,7 +579,11 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 		struct ieee80211_channel *chan;
 		struct cfg80211_chan_def chandef;
 
-		mvmvif->phy_ctxt = &mvm->phy_ctxt_roc;
+		mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
+		if (!mvmvif->phy_ctxt) {
+			ret = -ENOSPC;
+			goto out_remove_mac;
+		}
 
 		/*
 		 * The channel used here isn't relevant as it's
@@ -583,7 +616,7 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
  out_unbind:
 	iwl_mvm_binding_remove_vif(mvm, vif);
  out_remove_phy:
-	iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt);
+	iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
  out_remove_mac:
 	mvmvif->phy_ctxt = NULL;
 	iwl_mvm_mac_ctxt_remove(mvm, vif);
@@ -677,7 +710,7 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 		mvm->p2p_device_vif = NULL;
 		iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
 		iwl_mvm_binding_remove_vif(mvm, vif);
-		iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt);
+		iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
 		mvmvif->phy_ctxt = NULL;
 	}
 
@@ -1172,6 +1205,7 @@ static int iwl_mvm_roc(struct ieee80211_hw *hw,
 		       enum ieee80211_roc_type type)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct cfg80211_chan_def chandef;
 	int ret;
 
@@ -1186,7 +1220,7 @@ static int iwl_mvm_roc(struct ieee80211_hw *hw,
 	mutex_lock(&mvm->mutex);
 
 	cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
-	ret = iwl_mvm_phy_ctxt_changed(mvm, &mvm->phy_ctxt_roc,
+	ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
 				       &chandef, 1, 1);
 
 	/* Schedule the time events */
@@ -1216,15 +1250,29 @@ static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
 			       struct ieee80211_chanctx_conf *ctx)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
+	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
+	struct iwl_mvm_phy_ctxt *phy_ctxt;
 	int ret;
 
+	IWL_DEBUG_MAC80211(mvm, "Add PHY context\n");
+
 	mutex_lock(&mvm->mutex);
+	phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
+	if (!phy_ctxt) {
+		ret = -ENOSPC;
+		goto out;
+	}
 
-	IWL_DEBUG_MAC80211(mvm, "Add PHY context\n");
 	ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, &ctx->def,
 				   ctx->rx_chains_static,
 				   ctx->rx_chains_dynamic);
+	if (ret) {
+		IWL_ERR(mvm, "Failed to add PHY context\n");
+		goto out;
+	}
+
+	*phy_ctxt_id = phy_ctxt->id;
+out:
 	mutex_unlock(&mvm->mutex);
 	return ret;
 }
@@ -1233,10 +1281,11 @@ static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
 				   struct ieee80211_chanctx_conf *ctx)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
+	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
+	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
 
 	mutex_lock(&mvm->mutex);
-	iwl_mvm_phy_ctxt_remove(mvm, phy_ctxt);
+	iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
 	mutex_unlock(&mvm->mutex);
 }
 
@@ -1245,7 +1294,8 @@ static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
 				   u32 changed)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
+	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
+	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
 
 	mutex_lock(&mvm->mutex);
 	iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
@@ -1259,13 +1309,14 @@ static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
 				      struct ieee80211_chanctx_conf *ctx)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_phy_ctxt *phyctx = (void *)ctx->drv_priv;
+	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
+	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	int ret;
 
 	mutex_lock(&mvm->mutex);
 
-	mvmvif->phy_ctxt = phyctx;
+	mvmvif->phy_ctxt = phy_ctxt;
 
 	switch (vif->type) {
 	case NL80211_IFTYPE_AP:
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 4fc64d5..3505fca 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -109,6 +109,7 @@ extern struct iwl_mvm_mod_params iwlmvm_mod_params;
 struct iwl_mvm_phy_ctxt {
 	u16 id;
 	u16 color;
+	u32 ref;
 
 	/*
 	 * TODO: This should probably be removed. Currently here only for rate
@@ -318,7 +319,7 @@ struct iwl_mvm {
 	bool prevent_power_down_d3;
 #endif
 
-	struct iwl_mvm_phy_ctxt phy_ctxt_roc;
+	struct iwl_mvm_phy_ctxt phy_ctxts[NUM_PHY_CTX];
 
 	struct list_head time_event_list;
 	spinlock_t time_event_lock;
@@ -448,8 +449,10 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 			     struct cfg80211_chan_def *chandef,
 			     u8 chains_static, u8 chains_dynamic);
-void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm,
-			     struct iwl_mvm_phy_ctxt *ctxt);
+void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm,
+			  struct iwl_mvm_phy_ctxt *ctxt);
+void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm,
+			    struct iwl_mvm_phy_ctxt *ctxt);
 
 /* MAC (virtual interface) programming */
 int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
index a28a1d1..f80e721 100644
--- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
@@ -195,21 +195,6 @@ static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm,
 	return ret;
 }
 
-
-struct phy_ctx_used_data {
-	unsigned long used[BITS_TO_LONGS(NUM_PHY_CTX)];
-};
-
-static void iwl_mvm_phy_ctx_used_iter(struct ieee80211_hw *hw,
-				      struct ieee80211_chanctx_conf *ctx,
-				      void *_data)
-{
-	struct phy_ctx_used_data *data = _data;
-	struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
-
-	__set_bit(phy_ctxt->id, data->used);
-}
-
 /*
  * Send a command to add a PHY context based on the current HW configuration.
  */
@@ -217,34 +202,31 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 			 struct cfg80211_chan_def *chandef,
 			 u8 chains_static, u8 chains_dynamic)
 {
-	struct phy_ctx_used_data data = {
-		.used = { },
-	};
-
-	/*
-	 * If this is a regular PHY context (not the ROC one)
-	 * skip the ROC PHY context's ID.
-	 */
-	if (ctxt != &mvm->phy_ctxt_roc)
-		__set_bit(mvm->phy_ctxt_roc.id, data.used);
+	int ret;
 
+	WARN_ON(ctxt->ref);
 	lockdep_assert_held(&mvm->mutex);
-	ctxt->color++;
 
-	if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
-		ieee80211_iter_chan_contexts_atomic(
-			mvm->hw, iwl_mvm_phy_ctx_used_iter, &data);
+	ctxt->channel = chandef->chan;
+	ret = iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef,
+				     chains_static, chains_dynamic,
+				     FW_CTXT_ACTION_ADD, 0);
 
-		ctxt->id = find_first_zero_bit(data.used, NUM_PHY_CTX);
-		if (WARN_ONCE(ctxt->id == NUM_PHY_CTX,
-			      "Failed to init PHY context - no free ID!\n"))
-			return -EIO;
-	}
+	if (!ret)
+		ctxt->ref = 1;
+	return ret;
+}
 
-	ctxt->channel = chandef->chan;
-	return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef,
-				      chains_static, chains_dynamic,
-				      FW_CTXT_ACTION_ADD, 0);
+/*
+ * Update the number of references to the given PHY context. This is valid only
+ * in case the PHY context was already created, i.e., its reference count > 0.
+ */
+void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
+{
+	WARN_ON(!ctxt->ref);
+	lockdep_assert_held(&mvm->mutex);
+
+	ctxt->ref++;
 }
 
 /*
@@ -269,7 +251,8 @@ int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
  * Once the command is sent, regardless of success or failure, the context is
  * marked as invalid
  */
-void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
+static void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm,
+				    struct iwl_mvm_phy_ctxt *ctxt)
 {
 	struct iwl_phy_context_cmd cmd;
 	int ret;
@@ -280,7 +263,19 @@ void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
 	ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD, CMD_SYNC,
 				   sizeof(struct iwl_phy_context_cmd),
 				   &cmd);
+	ctxt->channel = NULL;
 	if (ret)
 		IWL_ERR(mvm, "Failed to send PHY remove: ctxt id=%d\n",
 			ctxt->id);
 }
+
+void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
+{
+	lockdep_assert_held(&mvm->mutex);
+
+	ctxt->ref--;
+	if (ctxt->ref != 0)
+		return;
+
+	return iwl_mvm_phy_ctxt_remove(mvm, ctxt);
+}
-- 
cgit v0.10.2


From 53a9d61eb74e574aec2db86f63d9809b6116d164 Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Sun, 28 Apr 2013 11:55:08 +0300
Subject: iwlwifi: mvm: Change PHY context handling

1. All the phy contexts are added immediately after the
   firmware is loaded and up.
2. Whenever a PHY context needs to be used, its reference
   counter is incremented and the PHY context is being
   configured to the appropriate configuration.
3. When a PHY context is no longer needed, its reference
   count is decremented.
4. PHY contexts are never removed.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index e18c92d..a4071cf 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -388,6 +388,8 @@ out:
 int iwl_mvm_up(struct iwl_mvm *mvm)
 {
 	int ret, i;
+	struct ieee80211_channel *chan;
+	struct cfg80211_chan_def chandef;
 
 	lockdep_assert_held(&mvm->mutex);
 
@@ -443,8 +445,22 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	if (ret)
 		goto error;
 
-	IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
+	/* Add all the PHY contexts */
+	chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
+	cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
+	for (i = 0; i < NUM_PHY_CTX; i++) {
+		/*
+		 * The channel used here isn't relevant as it's
+		 * going to be overwritten in the other flows.
+		 * For now use the first channel we have.
+		 */
+		ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i],
+					   &chandef, 1, 1);
+		if (ret)
+			goto error;
+	}
 
+	IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
 	return 0;
  error:
 	iwl_trans_stop_device(mvm->trans);
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index c1ed5c3..d9eabdc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -576,8 +576,6 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 	 * MAC context is bound to it at this stage.
 	 */
 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
-		struct ieee80211_channel *chan;
-		struct cfg80211_chan_def chandef;
 
 		mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
 		if (!mvmvif->phy_ctxt) {
@@ -585,21 +583,10 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 			goto out_remove_mac;
 		}
 
-		/*
-		 * The channel used here isn't relevant as it's
-		 * going to be overwritten as part of the ROC flow.
-		 * For now use the first channel we have.
-		 */
-		chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
-		cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
-		ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt,
-					   &chandef, 1, 1);
-		if (ret)
-			goto out_remove_mac;
-
+		iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
 		ret = iwl_mvm_binding_add_vif(mvm, vif);
 		if (ret)
-			goto out_remove_phy;
+			goto out_unref_phy;
 
 		ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
 		if (ret)
@@ -615,7 +602,7 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 
  out_unbind:
 	iwl_mvm_binding_remove_vif(mvm, vif);
- out_remove_phy:
+ out_unref_phy:
 	iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
  out_remove_mac:
 	mvmvif->phy_ctxt = NULL;
@@ -1254,7 +1241,7 @@ static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
 	struct iwl_mvm_phy_ctxt *phy_ctxt;
 	int ret;
 
-	IWL_DEBUG_MAC80211(mvm, "Add PHY context\n");
+	IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
 
 	mutex_lock(&mvm->mutex);
 	phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
@@ -1263,14 +1250,15 @@ static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
 		goto out;
 	}
 
-	ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, &ctx->def,
-				   ctx->rx_chains_static,
-				   ctx->rx_chains_dynamic);
+	ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
+				       ctx->rx_chains_static,
+				       ctx->rx_chains_dynamic);
 	if (ret) {
 		IWL_ERR(mvm, "Failed to add PHY context\n");
 		goto out;
 	}
 
+	iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
 	*phy_ctxt_id = phy_ctxt->id;
 out:
 	mutex_unlock(&mvm->mutex);
diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
index f80e721..0ea61aa 100644
--- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
@@ -212,8 +212,6 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 				     chains_static, chains_dynamic,
 				     FW_CTXT_ACTION_ADD, 0);
 
-	if (!ret)
-		ctxt->ref = 1;
 	return ret;
 }
 
@@ -223,9 +221,7 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
  */
 void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
 {
-	WARN_ON(!ctxt->ref);
 	lockdep_assert_held(&mvm->mutex);
-
 	ctxt->ref++;
 }
 
@@ -246,36 +242,8 @@ int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 				      FW_CTXT_ACTION_MODIFY, 0);
 }
 
-/*
- * Send a command to the FW to remove the given phy context.
- * Once the command is sent, regardless of success or failure, the context is
- * marked as invalid
- */
-static void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm,
-				    struct iwl_mvm_phy_ctxt *ctxt)
-{
-	struct iwl_phy_context_cmd cmd;
-	int ret;
-
-	lockdep_assert_held(&mvm->mutex);
-
-	iwl_mvm_phy_ctxt_cmd_hdr(ctxt, &cmd, FW_CTXT_ACTION_REMOVE, 0);
-	ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD, CMD_SYNC,
-				   sizeof(struct iwl_phy_context_cmd),
-				   &cmd);
-	ctxt->channel = NULL;
-	if (ret)
-		IWL_ERR(mvm, "Failed to send PHY remove: ctxt id=%d\n",
-			ctxt->id);
-}
-
 void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
 {
 	lockdep_assert_held(&mvm->mutex);
-
 	ctxt->ref--;
-	if (ctxt->ref != 0)
-		return;
-
-	return iwl_mvm_phy_ctxt_remove(mvm, ctxt);
 }
-- 
cgit v0.10.2


From b415210b3a36c414dec646104adf84d3b78d9f99 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 1 May 2013 09:42:06 +0300
Subject: iwlwifi: enable shadow registers for 7000

This will reduce CPU utilization. Instead of waking up the
NIC for each Tx manually, the CPU can write to a register
that will wake up the NIC automatically.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c
index 50263e8..26969f5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-7000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-7000.c
@@ -102,7 +102,7 @@ static const struct iwl_base_params iwl7000_base_params = {
 	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_LONG_WD_TIMEOUT,
 	.max_event_log_size = 512,
-	.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
+	.shadow_reg_enable = true,
 };
 
 static const struct iwl_ht_params iwl7000_ht_params = {
-- 
cgit v0.10.2


From ce7f9ab381ea1cc4514f462d18a15785de050323 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 3 May 2013 11:30:23 +0200
Subject: iwlwifi: mvm: don't assume data section is at 0x800000

In theory, the firmware format allows changing the data section
offset. This may not be used today, but there's no reason for
the driver to assume the data section is always at 0x800000 as
it can know better.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 2053dcc..a12c98b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -147,10 +147,11 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 
 	/* default is to dump the entire data segment */
 	if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) {
-		mvm->dbgfs_sram_offset = 0x800000;
 		if (!mvm->ucode_loaded)
 			return -EINVAL;
 		img = &mvm->fw->img[mvm->cur_ucode];
+		mvm->dbgfs_sram_offset =
+			img->sec[IWL_UCODE_SECTION_DATA].offset;
 		mvm->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
 	}
 	len = mvm->dbgfs_sram_len;
-- 
cgit v0.10.2


From b656fa337141136317589cff9f25832a00bc651c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 3 May 2013 11:56:17 +0200
Subject: iwlwifi: pcie: dump stack on NIC error in sync commands

Many times, a NIC error is the result of a bad command sent
to the device. If the command was sent synchronously, then
we'll currently print a message when the command is aborted
containing the command. It can be very useful to also see
the stack dump though, so also print that.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 03ad2f4..595df17 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1522,6 +1522,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 	if (test_bit(STATUS_FW_ERROR, &trans_pcie->status)) {
 		IWL_ERR(trans, "FW error in SYNC CMD %s\n",
 			get_cmd_string(trans_pcie, cmd->id));
+		dump_stack();
 		ret = -EIO;
 		goto cancel;
 	}
-- 
cgit v0.10.2


From bfc824b05bdc4ea0b7702263f91dc3fed7b630eb Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 6 May 2013 16:06:51 +0200
Subject: iwlwifi: nvm: honour VHT enable flag

Some devices don't support VHT (802.11ac) and this is encoded
in the data stored in the NVM. Read the flag and use it to set
up the VHT capabilities accordingly.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
index 6199a0a..8f2a4e9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
@@ -89,6 +89,7 @@ enum nvm_sku_bits {
 	NVM_SKU_CAP_BAND_24GHZ	= BIT(0),
 	NVM_SKU_CAP_BAND_52GHZ	= BIT(1),
 	NVM_SKU_CAP_11N_ENABLE	= BIT(2),
+	NVM_SKU_CAP_11AC_ENABLE	= BIT(3),
 };
 
 /* radio config bits (actual values from NVM definition) */
@@ -258,8 +259,6 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
 				  struct iwl_nvm_data *data,
 				  struct ieee80211_sta_vht_cap *vht_cap)
 {
-	/* For now, assume new devices with NVM are VHT capable */
-
 	vht_cap->vht_supported = true;
 
 	vht_cap->cap = IEEE80211_VHT_CAP_SHORT_GI_80 |
@@ -292,7 +291,8 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
 }
 
 static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
-			    struct iwl_nvm_data *data, const __le16 *nvm_sw)
+			    struct iwl_nvm_data *data, const __le16 *nvm_sw,
+			    bool enable_vht)
 {
 	int n_channels = iwl_init_channel_map(dev, cfg, data,
 			&nvm_sw[NVM_CHANNELS]);
@@ -314,7 +314,8 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
 	n_used += iwl_init_sband_channels(data, sband, n_channels,
 					  IEEE80211_BAND_5GHZ);
 	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ);
-	iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap);
+	if (enable_vht)
+		iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap);
 
 	if (n_channels != n_used)
 		IWL_ERR_DEV(dev, "NVM: used only %d of %d channels\n",
@@ -380,7 +381,8 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
 	data->hw_addr[4] = hw_addr[5];
 	data->hw_addr[5] = hw_addr[4];
 
-	iwl_init_sbands(dev, cfg, data, nvm_sw);
+	iwl_init_sbands(dev, cfg, data, nvm_sw,
+			sku & NVM_SKU_CAP_11AC_ENABLE);
 
 	data->calib_version = 255;   /* TODO:
 					this value will prevent some checks from
-- 
cgit v0.10.2


From 31d385aeea7e26e70409cd6f126c516047bc9f96 Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Tue, 2 Apr 2013 10:25:46 +0300
Subject: iwlwifi: mvm: Allow P2P Device to use an existing PHY context

The patch is an optimization, that eliminates unnecessary binding
context switching and allows the P2P Device MAC to use the same channel
as an existing netdev interface.

For each ROC call, check if there is already a channel/phy context that
can be used for the P2P Device. If such channel is found, unbind
the P2P Device from its current phy context, and bind it to the already
used channel/phy context. In case that the phy context is shared,
and there is a need to change it, create a new phy context, unbind and
create a new binding.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index d9eabdc..fe22772 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1194,28 +1194,105 @@ static int iwl_mvm_roc(struct ieee80211_hw *hw,
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct cfg80211_chan_def chandef;
-	int ret;
+	struct iwl_mvm_phy_ctxt *phy_ctxt;
+	int ret, i;
+
+	IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
+			   duration, type);
 
 	if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
 		IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
 		return -EINVAL;
 	}
 
-	IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
-			   duration, type);
-
 	mutex_lock(&mvm->mutex);
 
+	for (i = 0; i < NUM_PHY_CTX; i++) {
+		phy_ctxt = &mvm->phy_ctxts[i];
+		if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
+			continue;
+
+		if (phy_ctxt->ref && channel == phy_ctxt->channel) {
+			/*
+			 * Unbind the P2P_DEVICE from the current PHY context,
+			 * and if the PHY context is not used remove it.
+			 */
+			ret = iwl_mvm_binding_remove_vif(mvm, vif);
+			if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
+				goto out_unlock;
+
+			iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
+
+			/* Bind the P2P_DEVICE to the current PHY Context */
+			mvmvif->phy_ctxt = phy_ctxt;
+
+			ret = iwl_mvm_binding_add_vif(mvm, vif);
+			if (WARN(ret, "Failed binding P2P_DEVICE\n"))
+				goto out_unlock;
+
+			iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
+			goto schedule_time_event;
+		}
+	}
+
+	/* Need to update the PHY context only if the ROC channel changed */
+	if (channel == mvmvif->phy_ctxt->channel)
+		goto schedule_time_event;
+
 	cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
-	ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
-				       &chandef, 1, 1);
 
+	/*
+	 * Change the PHY context configuration as it is currently referenced
+	 * only by the P2P Device MAC
+	 */
+	if (mvmvif->phy_ctxt->ref == 1) {
+		ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
+					       &chandef, 1, 1);
+		if (ret)
+			goto out_unlock;
+	} else {
+		/*
+		 * The PHY context is shared with other MACs. Need to remove the
+		 * P2P Device from the binding, allocate an new PHY context and
+		 * create a new binding
+		 */
+		phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
+		if (!phy_ctxt) {
+			ret = -ENOSPC;
+			goto out_unlock;
+		}
+
+		ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
+					       1, 1);
+		if (ret) {
+			IWL_ERR(mvm, "Failed to change PHY context\n");
+			goto out_unlock;
+		}
+
+		/* Unbind the P2P_DEVICE from the current PHY context */
+		ret = iwl_mvm_binding_remove_vif(mvm, vif);
+		if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
+			goto out_unlock;
+
+		iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
+
+		/* Bind the P2P_DEVICE to the new allocated PHY context */
+		mvmvif->phy_ctxt = phy_ctxt;
+
+		ret = iwl_mvm_binding_add_vif(mvm, vif);
+		if (WARN(ret, "Failed binding P2P_DEVICE\n"))
+			goto out_unlock;
+
+		iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
+	}
+
+schedule_time_event:
 	/* Schedule the time events */
 	ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
 
+out_unlock:
 	mutex_unlock(&mvm->mutex);
 	IWL_DEBUG_MAC80211(mvm, "leave\n");
-
 	return ret;
 }
 
@@ -1285,6 +1362,14 @@ static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
 	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
 
+	if (WARN_ONCE((phy_ctxt->ref > 1) &&
+		      (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
+				   IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
+				   IEEE80211_CHANCTX_CHANGE_RADAR)),
+		      "Cannot change PHY. Ref=%d, changed=0x%X\n",
+		      phy_ctxt->ref, changed))
+		return;
+
 	mutex_lock(&mvm->mutex);
 	iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
 				 ctx->rx_chains_static,
-- 
cgit v0.10.2


From 93fc64114b994f9ef6901697f9b0de00762680e9 Mon Sep 17 00:00:00 2001
From: Oren Givon <oren.givon@intel.com>
Date: Tue, 23 Apr 2013 18:19:11 +0300
Subject: iwlwifi: add new 7260 and 3160 series device IDs

Add new device IDs and configurations to support
all the devices.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c
index 26969f5..c9aae2a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-7000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-7000.c
@@ -125,7 +125,7 @@ static const struct iwl_ht_params iwl7000_ht_params = {
 
 
 const struct iwl_cfg iwl7260_2ac_cfg = {
-	.name = "Intel(R) Dual Band Wireless AC7260",
+	.name = "Intel(R) Dual Band Wireless AC 7260",
 	.fw_name_pre = IWL7260_FW_PRE,
 	IWL_DEVICE_7000,
 	.ht_params = &iwl7000_ht_params,
@@ -133,8 +133,44 @@ const struct iwl_cfg iwl7260_2ac_cfg = {
 	.nvm_calib_ver = IWL7260_TX_POWER_VERSION,
 };
 
-const struct iwl_cfg iwl3160_ac_cfg = {
-	.name = "Intel(R) Dual Band Wireless AC3160",
+const struct iwl_cfg iwl7260_2n_cfg = {
+	.name = "Intel(R) Dual Band Wireless N 7260",
+	.fw_name_pre = IWL7260_FW_PRE,
+	IWL_DEVICE_7000,
+	.ht_params = &iwl7000_ht_params,
+	.nvm_ver = IWL7260_NVM_VERSION,
+	.nvm_calib_ver = IWL7260_TX_POWER_VERSION,
+};
+
+const struct iwl_cfg iwl7260_n_cfg = {
+	.name = "Intel(R) Wireless N 7260",
+	.fw_name_pre = IWL7260_FW_PRE,
+	IWL_DEVICE_7000,
+	.ht_params = &iwl7000_ht_params,
+	.nvm_ver = IWL7260_NVM_VERSION,
+	.nvm_calib_ver = IWL7260_TX_POWER_VERSION,
+};
+
+const struct iwl_cfg iwl3160_2ac_cfg = {
+	.name = "Intel(R) Dual Band Wireless AC 3160",
+	.fw_name_pre = IWL3160_FW_PRE,
+	IWL_DEVICE_7000,
+	.ht_params = &iwl7000_ht_params,
+	.nvm_ver = IWL3160_NVM_VERSION,
+	.nvm_calib_ver = IWL3160_TX_POWER_VERSION,
+};
+
+const struct iwl_cfg iwl3160_2n_cfg = {
+	.name = "Intel(R) Dual Band Wireless N 3160",
+	.fw_name_pre = IWL3160_FW_PRE,
+	IWL_DEVICE_7000,
+	.ht_params = &iwl7000_ht_params,
+	.nvm_ver = IWL3160_NVM_VERSION,
+	.nvm_calib_ver = IWL3160_TX_POWER_VERSION,
+};
+
+const struct iwl_cfg iwl3160_n_cfg = {
+	.name = "Intel(R) Wireless N 3160",
 	.fw_name_pre = IWL3160_FW_PRE,
 	IWL_DEVICE_7000,
 	.ht_params = &iwl7000_ht_params,
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index c38aa8f..c3c9268 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -320,6 +320,10 @@ extern const struct iwl_cfg iwl105_bgn_cfg;
 extern const struct iwl_cfg iwl105_bgn_d_cfg;
 extern const struct iwl_cfg iwl135_bgn_cfg;
 extern const struct iwl_cfg iwl7260_2ac_cfg;
-extern const struct iwl_cfg iwl3160_ac_cfg;
+extern const struct iwl_cfg iwl7260_2n_cfg;
+extern const struct iwl_cfg iwl7260_n_cfg;
+extern const struct iwl_cfg iwl3160_2ac_cfg;
+extern const struct iwl_cfg iwl3160_2n_cfg;
+extern const struct iwl_cfg iwl3160_n_cfg;
 
 #endif /* __IWL_CONFIG_H__ */
diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index 8cb53ec..db7bdd3 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -256,10 +256,54 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 
 /* 7000 Series */
 	{IWL_PCI_DEVICE(0x08B1, 0x4070, iwl7260_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x08B1, 0x4062, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4170, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4060, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4160, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4062, iwl7260_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4162, iwl7260_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B2, 0x4270, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B2, 0x4260, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B2, 0x4262, iwl7260_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4470, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4460, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4462, iwl7260_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4870, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x486E, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4A70, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4A6E, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4A6C, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4020, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B2, 0x4220, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4420, iwl7260_2n_cfg)},
 	{IWL_PCI_DEVICE(0x08B1, 0xC070, iwl7260_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x08B3, 0x0070, iwl3160_ac_cfg)},
-	{IWL_PCI_DEVICE(0x08B3, 0x8070, iwl3160_ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC170, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC060, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC160, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC062, iwl7260_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC162, iwl7260_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B2, 0xC270, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B2, 0xC260, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B2, 0xC262, iwl7260_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC470, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC460, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC462, iwl7260_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC020, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B2, 0xC220, iwl7260_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0xC420, iwl7260_2n_cfg)},
+
+/* 3160 Series */
+	{IWL_PCI_DEVICE(0x08B3, 0x0070, iwl3160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x0170, iwl3160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x0060, iwl3160_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x0062, iwl3160_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B4, 0x0270, iwl3160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x0470, iwl3160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x8070, iwl3160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x8170, iwl3160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x8060, iwl3160_2n_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x8062, iwl3160_n_cfg)},
+	{IWL_PCI_DEVICE(0x08B4, 0x8270, iwl3160_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B3, 0x8470, iwl3160_2ac_cfg)},
 
 	{0}
 };
-- 
cgit v0.10.2


From afc66bb734d44ea64cc78ae8d8034886e8cfb2c7 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 3 May 2013 11:44:16 +0200
Subject: iwlwifi: mvm: optionally store D3 SRAM after resume

The D3 image SRAM is overwritten by the runtime image, so
it can't be accessed after resume. However, it can be very
useful to look at it to know what happened during D3, so
add the ability to store the image and make it available
in debugfs.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 16bbdcc..63d788a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -1214,6 +1214,26 @@ static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
 	iwl_free_resp(&cmd);
 }
 
+static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
+{
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN];
+	u32 len = img->sec[IWL_UCODE_SECTION_DATA].len;
+	u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset;
+
+	if (!mvm->store_d3_resume_sram)
+		return;
+
+	if (!mvm->d3_resume_sram) {
+		mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL);
+		if (!mvm->d3_resume_sram)
+			return;
+	}
+
+	iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len);
+#endif
+}
+
 int iwl_mvm_resume(struct ieee80211_hw *hw)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
@@ -1245,6 +1265,9 @@ int iwl_mvm_resume(struct ieee80211_hw *hw)
 		goto out_unlock;
 	}
 
+	/* query SRAM first in case we want event logging */
+	iwl_mvm_read_d3_sram(mvm);
+
 	iwl_mvm_query_wakeup_reasons(mvm, vif);
 
  out_unlock:
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index a12c98b..0765827 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -482,6 +482,70 @@ static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
 	return count;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static ssize_t iwl_dbgfs_d3_sram_write(struct file *file,
+				       const char __user *user_buf,
+				       size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	char buf[8] = {};
+	int store;
+
+	if (copy_from_user(buf, user_buf, sizeof(buf)))
+		return -EFAULT;
+
+	if (sscanf(buf, "%d", &store) != 1)
+		return -EINVAL;
+
+	mvm->store_d3_resume_sram = store;
+
+	return count;
+}
+
+static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf,
+				      size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	const struct fw_img *img;
+	int ofs, len, pos = 0;
+	size_t bufsz, ret;
+	char *buf;
+	u8 *ptr = mvm->d3_resume_sram;
+
+	img = &mvm->fw->img[IWL_UCODE_WOWLAN];
+	len = img->sec[IWL_UCODE_SECTION_DATA].len;
+
+	bufsz = len * 4 + 256;
+	buf = kzalloc(bufsz, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n",
+			 mvm->store_d3_resume_sram ? "en" : "dis");
+
+	if (ptr) {
+		for (ofs = 0; ofs < len; ofs += 16) {
+			pos += scnprintf(buf + pos, bufsz - pos,
+					 "0x%.4x ", ofs);
+			hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
+					   bufsz - pos, false);
+			pos += strlen(buf + pos);
+			if (bufsz - pos > 0)
+				buf[pos++] = '\n';
+		}
+	} else {
+		pos += scnprintf(buf + pos, bufsz - pos,
+				 "(no data captured)\n");
+	}
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+
+	kfree(buf);
+
+	return ret;
+}
+#endif
+
 #define MVM_DEBUGFS_READ_FILE_OPS(name)					\
 static const struct file_operations iwl_dbgfs_##name##_ops = {	\
 	.read = iwl_dbgfs_##name##_read,				\
@@ -525,6 +589,9 @@ MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
+#ifdef CONFIG_PM_SLEEP
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram);
+#endif
 
 /* Interface specific debugfs entries */
 MVM_DEBUGFS_READ_FILE_OPS(mac_params);
@@ -543,6 +610,9 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
+#ifdef CONFIG_PM_SLEEP
+	MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
+#endif
 
 	/*
 	 * Create a symlink with mac80211. It will be removed when mac80211
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 3505fca..712c39a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -344,6 +344,10 @@ struct iwl_mvm {
 
 #ifdef CONFIG_PM_SLEEP
 	int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	bool store_d3_resume_sram;
+	void *d3_resume_sram;
+#endif
 #endif
 
 	/* BT-Coex */
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 5bf1eaf..bb79a8d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -443,6 +443,10 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
 
 	kfree(mvm->scan_cmd);
 
+#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
+	kfree(mvm->d3_resume_sram);
+#endif
+
 	iwl_trans_stop_hw(mvm->trans, true);
 
 	iwl_phy_db_free(mvm->phy_db);
-- 
cgit v0.10.2


From e28210115b0ff3544b39ee67d8e48dc74b25b6b8 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 8 May 2013 15:55:31 +0200
Subject: iwlwifi: mvm: sanity check context in iwl_mvm_phy_ctxt_unref()

In some botched (!) restart scenarios we seem to get here with
a NULL PHY context, so warn and exit instead of crashing.

Reported-by: Omer Kremer <omerx.kremer@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
index 0ea61aa..1b4db25 100644
--- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
@@ -245,5 +245,9 @@ int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
 {
 	lockdep_assert_held(&mvm->mutex);
+
+	if (WARN_ON_ONCE(!ctxt))
+		return;
+
 	ctxt->ref--;
 }
-- 
cgit v0.10.2


From bc441bc8e36e0bcdbf21639fb78e94ffa19ea226 Mon Sep 17 00:00:00 2001
From: Laurent Navet <laurent.navet@gmail.com>
Date: Mon, 13 May 2013 17:27:51 +0200
Subject: drivers: net: can: grcan: use devm_ioremap_resource()

Replace a call to deprecated devm_request_and_ioremap by devm_ioremap_resource.
dev_err() message is no more needed since it's already displayed in
devm_ioremap_resource().

Signed-off-by: Laurent Navet <laurent.navet@gmail.com>
Acked-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
index 17fbc7a..9e9d0d6 100644
--- a/drivers/net/can/grcan.c
+++ b/drivers/net/can/grcan.c
@@ -1683,10 +1683,9 @@ static int grcan_probe(struct platform_device *ofdev)
 	}
 
 	res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
-	base = devm_request_and_ioremap(&ofdev->dev, res);
-	if (!base) {
-		dev_err(&ofdev->dev, "couldn't map IO resource\n");
-		err = -EADDRNOTAVAIL;
+	base = devm_ioremap_resource(&ofdev->dev, res);
+	if (IS_ERR(base)) {
+		err = PTR_ERR(base);
 		goto exit_error;
 	}
 
-- 
cgit v0.10.2


From 3e1dd6da1a7af98a795fafa9437679767c605a7b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 7 May 2013 13:11:29 +0900
Subject: net: can: at91_can: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index db52f441..5566566 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -1393,8 +1393,6 @@ static int at91_can_remove(struct platform_device *pdev)
 
 	unregister_netdev(dev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	iounmap(priv->reg_base);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-- 
cgit v0.10.2


From 5e946e56231b5c765598cd3103faf3c7a0121812 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 7 May 2013 13:14:13 +0900
Subject: net: can: c_can: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index d63b919..6b6130b 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -234,7 +234,6 @@ static int c_can_plat_probe(struct platform_device *pdev)
 	return 0;
 
 exit_free_device:
-	platform_set_drvdata(pdev, NULL);
 	free_c_can_dev(dev);
 exit_iounmap:
 	iounmap(addr);
@@ -255,7 +254,6 @@ static int c_can_plat_remove(struct platform_device *pdev)
 	struct resource *mem;
 
 	unregister_c_can_dev(dev);
-	platform_set_drvdata(pdev, NULL);
 
 	free_c_can_dev(dev);
 	iounmap(priv->base);
-- 
cgit v0.10.2


From 688a2e74210cb42eccf59b8cff1433d53ea0b800 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 7 May 2013 13:15:49 +0900
Subject: net: can: flexcan: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 769d29e..4a40a18 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1127,7 +1127,6 @@ static int flexcan_remove(struct platform_device *pdev)
 	struct resource *mem;
 
 	unregister_flexcandev(dev);
-	platform_set_drvdata(pdev, NULL);
 	iounmap(priv->base);
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-- 
cgit v0.10.2


From 5727dc6bf5b70dd278e58e26137e2df729b9c107 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 7 May 2013 13:17:38 +0900
Subject: net: can: ti_hecc: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index f21fc37..3a349a2 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -1001,7 +1001,6 @@ static int ti_hecc_remove(struct platform_device *pdev)
 	iounmap(priv->base);
 	release_mem_region(res->start, resource_size(res));
 	free_candev(ndev);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
-- 
cgit v0.10.2


From 119363c7dc2bcc0c33c255a7b4979c8c0fdc1896 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 22 Apr 2013 16:29:30 +0200
Subject: cfg80211: add support for per-chain signal strength reporting

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 26b5b69..87f7e1d 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -753,6 +753,8 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
  * @STATION_INFO_LOCAL_PM: @local_pm filled
  * @STATION_INFO_PEER_PM: @peer_pm filled
  * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled
+ * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled
+ * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled
  */
 enum station_info_flags {
 	STATION_INFO_INACTIVE_TIME	= 1<<0,
@@ -781,6 +783,8 @@ enum station_info_flags {
 	STATION_INFO_NONPEER_PM		= 1<<23,
 	STATION_INFO_RX_BYTES64		= 1<<24,
 	STATION_INFO_TX_BYTES64		= 1<<25,
+	STATION_INFO_CHAIN_SIGNAL	= 1<<26,
+	STATION_INFO_CHAIN_SIGNAL_AVG	= 1<<27,
 };
 
 /**
@@ -857,6 +861,8 @@ struct sta_bss_parameters {
 	u16 beacon_interval;
 };
 
+#define IEEE80211_MAX_CHAINS	4
+
 /**
  * struct station_info - station information
  *
@@ -874,6 +880,9 @@ struct sta_bss_parameters {
  *	For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
  * @signal_avg: Average signal strength, type depends on the wiphy's signal_type.
  *	For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.
+ * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg
+ * @chain_signal: per-chain signal strength of last received packet in dBm
+ * @chain_signal_avg: per-chain signal strength average in dBm
  * @txrate: current unicast bitrate from this station
  * @rxrate: current unicast bitrate to this station
  * @rx_packets: packets received from this station
@@ -909,6 +918,11 @@ struct station_info {
 	u8 plink_state;
 	s8 signal;
 	s8 signal_avg;
+
+	u8 chains;
+	s8 chain_signal[IEEE80211_MAX_CHAINS];
+	s8 chain_signal_avg[IEEE80211_MAX_CHAINS];
+
 	struct rate_info txrate;
 	struct rate_info rxrate;
 	u32 rx_packets;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index d1e48b5..cbf1e22 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1991,6 +1991,10 @@ enum nl80211_sta_bss_param {
  * @NL80211_STA_INFO_PEER_PM: peer mesh STA link-specific power mode
  * @NL80211_STA_INFO_NONPEER_PM: neighbor mesh STA power save mode towards
  *	non-peer STA
+ * @NL80211_STA_INFO_CHAIN_SIGNAL: per-chain signal strength of last PPDU
+ *	Contains a nested array of signal strength attributes (u8, dBm)
+ * @NL80211_STA_INFO_CHAIN_SIGNAL_AVG: per-chain signal strength average
+ *	Same format as NL80211_STA_INFO_CHAIN_SIGNAL.
  * @__NL80211_STA_INFO_AFTER_LAST: internal
  * @NL80211_STA_INFO_MAX: highest possible station info attribute
  */
@@ -2020,6 +2024,8 @@ enum nl80211_sta_info {
 	NL80211_STA_INFO_NONPEER_PM,
 	NL80211_STA_INFO_RX_BYTES64,
 	NL80211_STA_INFO_TX_BYTES64,
+	NL80211_STA_INFO_CHAIN_SIGNAL,
+	NL80211_STA_INFO_CHAIN_SIGNAL_AVG,
 
 	/* keep last */
 	__NL80211_STA_INFO_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index afa2838..f687a8d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3376,6 +3376,32 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
 	return true;
 }
 
+static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
+			       int id)
+{
+	void *attr;
+	int i = 0;
+
+	if (!mask)
+		return true;
+
+	attr = nla_nest_start(msg, id);
+	if (!attr)
+		return false;
+
+	for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
+		if (!(mask & BIT(i)))
+			continue;
+
+		if (nla_put_u8(msg, i, signal[i]))
+			return false;
+	}
+
+	nla_nest_end(msg, attr);
+
+	return true;
+}
+
 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
 				int flags,
 				struct cfg80211_registered_device *rdev,
@@ -3447,6 +3473,18 @@ static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
 	default:
 		break;
 	}
+	if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
+		if (!nl80211_put_signal(msg, sinfo->chains,
+					sinfo->chain_signal,
+					NL80211_STA_INFO_CHAIN_SIGNAL))
+			goto nla_put_failure;
+	}
+	if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
+		if (!nl80211_put_signal(msg, sinfo->chains,
+					sinfo->chain_signal_avg,
+					NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
+			goto nla_put_failure;
+	}
 	if (sinfo->filled & STATION_INFO_TX_BITRATE) {
 		if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
 					  NL80211_STA_INFO_TX_BITRATE))
-- 
cgit v0.10.2


From ef0621e805f9ef76eaf31ce6205028fe467e9ca9 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 22 Apr 2013 16:29:31 +0200
Subject: mac80211: add support for per-chain signal strength reporting

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
[fix unit documentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 04c2d46..5953f25 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -850,6 +850,10 @@ enum mac80211_rx_flags {
  * @signal: signal strength when receiving this frame, either in dBm, in dB or
  *	unspecified depending on the hardware capabilities flags
  *	@IEEE80211_HW_SIGNAL_*
+ * @chains: bitmask of receive chains for which separate signal strength
+ *	values were filled.
+ * @chain_signal: per-chain signal strength, in dBm (unlike @signal, doesn't
+ *	support dB or unspecified units)
  * @antenna: antenna used
  * @rate_idx: index of data rate into band's supported rates or MCS index if
  *	HT or VHT is used (%RX_FLAG_HT/%RX_FLAG_VHT)
@@ -881,6 +885,8 @@ struct ieee80211_rx_status {
 	u8 band;
 	u8 antenna;
 	s8 signal;
+	u8 chains;
+	s8 chain_signal[IEEE80211_MAX_CHAINS];
 	u8 ampdu_delimiter_crc;
 	u8 vendor_radiotap_align;
 	u8 vendor_radiotap_oui[3];
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 1a89c80..1f51bdf 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -444,7 +444,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 	struct ieee80211_local *local = sdata->local;
 	struct timespec uptime;
 	u64 packets = 0;
-	int ac;
+	int i, ac;
 
 	sinfo->generation = sdata->local->sta_generation;
 
@@ -488,6 +488,17 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 			sinfo->signal = (s8)sta->last_signal;
 		sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
 	}
+	if (sta->chains) {
+		sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
+				 STATION_INFO_CHAIN_SIGNAL_AVG;
+
+		sinfo->chains = sta->chains;
+		for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
+			sinfo->chain_signal[i] = sta->chain_signal_last[i];
+			sinfo->chain_signal_avg[i] =
+				(s8) -ewma_read(&sta->chain_signal_avg[i]);
+		}
+	}
 
 	sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
 	sta_set_rate_info_rx(sta, &sinfo->rxrate);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index c8447af..22e412b 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1372,6 +1372,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 	struct sk_buff *skb = rx->skb;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	int i;
 
 	if (!sta)
 		return RX_CONTINUE;
@@ -1422,6 +1423,19 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 		ewma_add(&sta->avg_signal, -status->signal);
 	}
 
+	if (status->chains) {
+		sta->chains = status->chains;
+		for (i = 0; i < ARRAY_SIZE(status->chain_signal); i++) {
+			int signal = status->chain_signal[i];
+
+			if (!(status->chains & BIT(i)))
+				continue;
+
+			sta->chain_signal_last[i] = signal;
+			ewma_add(&sta->chain_signal_avg[i], -signal);
+		}
+	}
+
 	/*
 	 * Change STA power saving mode only at the end of a frame
 	 * exchange sequence.
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 11216bc..a04c5671 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -358,6 +358,8 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	do_posix_clock_monotonic_gettime(&uptime);
 	sta->last_connected = uptime.tv_sec;
 	ewma_init(&sta->avg_signal, 1024, 8);
+	for (i = 0; i < ARRAY_SIZE(sta->chain_signal_avg); i++)
+		ewma_init(&sta->chain_signal_avg[i], 1024, 8);
 
 	if (sta_prepare_rate_control(local, sta, gfp)) {
 		kfree(sta);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index adc3004..41c28b9 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -344,6 +344,11 @@ struct sta_info {
 	int last_signal;
 	struct ewma avg_signal;
 	int last_ack_signal;
+
+	u8 chains;
+	s8 chain_signal_last[IEEE80211_MAX_CHAINS];
+	struct ewma chain_signal_avg[IEEE80211_MAX_CHAINS];
+
 	/* Plus 1 for non-QoS frames */
 	__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
 
-- 
cgit v0.10.2


From 55300a13d2ca1d59f659cf00b9d8dc93ea225882 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Tue, 23 Apr 2013 09:54:21 +0300
Subject: cfg80211: add 60GHz regulatory class

Add regulatory class for 60GHz band, according
to the last specification.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/util.c b/net/wireless/util.c
index f5ad4d9..b11052b 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1169,6 +1169,9 @@ bool ieee80211_operating_class_to_band(u8 operating_class,
 	case 84:
 		*band = IEEE80211_BAND_2GHZ;
 		return true;
+	case 180:
+		*band = IEEE80211_BAND_60GHZ;
+		return true;
 	}
 
 	return false;
-- 
cgit v0.10.2


From fb4e156886ce6e8309e912d8b370d192330d19d3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 28 Apr 2013 16:22:06 -0700
Subject: nl80211: Add generic netlink module alias for cfg80211/nl80211

To support auto-loading of wireless modules from netlink users, add module
alias for nl80211 family.

This also adds NL80211_GENL_NAME constant to define the "nl80211" netlink
family name as part of uapi.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index cbf1e22..b484307 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -27,6 +27,8 @@
 
 #include <linux/types.h>
 
+#define NL80211_GENL_NAME "nl80211"
+
 /**
  * DOC: Station handling
  *
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 84c9ad7..68f0c96 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -34,6 +34,7 @@
 MODULE_AUTHOR("Johannes Berg");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("wireless configuration support");
+MODULE_ALIAS_GENL_FAMILY(NL80211_GENL_NAME);
 
 /* RCU-protected (and cfg80211_mutex for writers) */
 LIST_HEAD(cfg80211_rdev_list);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f687a8d..9cdcd9e 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -37,10 +37,10 @@ static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
 
 /* the netlink family */
 static struct genl_family nl80211_fam = {
-	.id = GENL_ID_GENERATE,	/* don't bother with a hardcoded ID */
-	.name = "nl80211",	/* have users key off the name instead */
-	.hdrsize = 0,		/* no private header */
-	.version = 1,		/* no particular meaning now */
+	.id = GENL_ID_GENERATE,		/* don't bother with a hardcoded ID */
+	.name = NL80211_GENL_NAME,	/* have users key off the name instead */
+	.hdrsize = 0,			/* no private header */
+	.version = 1,			/* no particular meaning now */
 	.maxattr = NL80211_ATTR_MAX,
 	.netnsok = true,
 	.pre_doit = nl80211_pre_doit,
-- 
cgit v0.10.2


From 03f831a6f7dc02303df20718a4e96821e43b3d0c Mon Sep 17 00:00:00 2001
From: "Robert P. J. Day" <rpjday@crashcourse.ca>
Date: Thu, 2 May 2013 07:15:09 -0400
Subject: wireless: fix kerneldoc content in *80211.h files.

Make kerneldoc content match header file content, no functional
change.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 87f7e1d..26e9113 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4167,6 +4167,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
  * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver.
  *
  * @wdev: the wireless device for which critical protocol is stopped.
+ * @gfp: allocation flags
  *
  * This function can be called by the driver to indicate it has reverted
  * operation back to normal. One reason could be that the duration given
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5953f25..c36535e 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1241,7 +1241,7 @@ enum ieee80211_sta_rx_bandwidth {
  * struct ieee80211_sta_rates - station rate selection table
  *
  * @rcu_head: RCU head used for freeing the table on update
- * @rates: transmit rates/flags to be used by default.
+ * @rate: transmit rates/flags to be used by default.
  *	Overriding entries per-packet is possible by using cb tx control.
  */
 struct ieee80211_sta_rates {
@@ -1282,7 +1282,7 @@ struct ieee80211_sta_rates {
  *	notifications and capabilities. The value is only valid after
  *	the station moves to associated state.
  * @smps_mode: current SMPS mode (off, static or dynamic)
- * @tx_rates: rate control selection table
+ * @rates: rate control selection table
  */
 struct ieee80211_sta {
 	u32 supp_rates[IEEE80211_NUM_BANDS];
-- 
cgit v0.10.2


From 04a161f4609dfa387313456fa7ea469fff12cc0d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 3 May 2013 09:35:35 +0200
Subject: mac80211: fix HT beacon-based channel switch handling

When an HT AP is advertising channel switch in a beacon, it
doesn't (and shouldn't, according to 802.11-2012 Table 8-20)
include a secondary channel offset element. The only possible
interpretation is that the previous secondary channel offset
remains valid, so use that when switching channel based only
on beacon information.

VHT requires the Wide Bandwidth Channel Switch subelement to
be present in the Channel Switch Wrapper element, so the code
for that is probably ok (see 802.11ac Draft 4, 8.4.2.165.)

Reported-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 29620bfc..a8016c0 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1015,7 +1015,8 @@ static void ieee80211_chswitch_timer(unsigned long data)
 
 static void
 ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
-				 u64 timestamp, struct ieee802_11_elems *elems)
+				 u64 timestamp, struct ieee802_11_elems *elems,
+				 bool beacon)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -1032,6 +1033,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	struct cfg80211_chan_def new_vht_chandef = {};
 	const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
 	const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
+	const struct ieee80211_ht_operation *ht_oper;
 	int secondary_channel_offset = -1;
 
 	ASSERT_MGD_MTX(ifmgd);
@@ -1048,11 +1050,14 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 
 	sec_chan_offs = elems->sec_chan_offs;
 	wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
+	ht_oper = elems->ht_operation;
 
 	if (ifmgd->flags & (IEEE80211_STA_DISABLE_HT |
 			    IEEE80211_STA_DISABLE_40MHZ)) {
 		sec_chan_offs = NULL;
 		wide_bw_chansw_ie = NULL;
+		/* only used for bandwidth here */
+		ht_oper = NULL;
 	}
 
 	if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT)
@@ -1094,10 +1099,20 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 		return;
 	}
 
-	if (sec_chan_offs) {
+	if (!beacon && sec_chan_offs) {
 		secondary_channel_offset = sec_chan_offs->sec_chan_offs;
+	} else if (beacon && ht_oper) {
+		secondary_channel_offset =
+			ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
 	} else if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) {
-		/* if HT is enabled and the IE not present, it's still HT */
+		/*
+		 * If it's not a beacon, HT is enabled and the IE not present,
+		 * it's 20 MHz, 802.11-2012 8.5.2.6:
+		 *	This element [the Secondary Channel Offset Element] is
+		 *	present when switching to a 40 MHz channel. It may be
+		 *	present when switching to a 20 MHz channel (in which
+		 *	case the secondary channel offset is set to SCN).
+		 */
 		secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
 	}
 
@@ -2796,7 +2811,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		mutex_unlock(&local->iflist_mtx);
 	}
 
-	ieee80211_sta_process_chanswitch(sdata, rx_status->mactime, elems);
+	ieee80211_sta_process_chanswitch(sdata, rx_status->mactime,
+					 elems, true);
 
 }
 
@@ -3210,7 +3226,7 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 
 			ieee80211_sta_process_chanswitch(sdata,
 							 rx_status->mactime,
-							 &elems);
+							 &elems, false);
 		} else if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) {
 			ies_len = skb->len -
 				  offsetof(struct ieee80211_mgmt,
@@ -3232,7 +3248,7 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 
 			ieee80211_sta_process_chanswitch(sdata,
 							 rx_status->mactime,
-							 &elems);
+							 &elems, false);
 		}
 		break;
 	}
-- 
cgit v0.10.2


From 4325f6caad98c075b39f0eaaac6693a0dd43f646 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 8 May 2013 13:09:08 +0200
Subject: wireless: move crypto constants to ieee80211.h

mac80211 and the Intel drivers all define crypto
constants, move them to ieee80211.h instead.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlegacy/commands.h b/drivers/net/wireless/iwlegacy/commands.h
index 3b6c994..0484215 100644
--- a/drivers/net/wireless/iwlegacy/commands.h
+++ b/drivers/net/wireless/iwlegacy/commands.h
@@ -1348,14 +1348,6 @@ struct il_rx_mpdu_res_start {
 #define TX_CMD_SEC_KEY128	0x08
 
 /*
- * security overhead sizes
- */
-#define WEP_IV_LEN 4
-#define WEP_ICV_LEN 4
-#define CCMP_MIC_LEN 8
-#define TKIP_ICV_LEN 4
-
-/*
  * C_TX = 0x1c (command)
  */
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/commands.h b/drivers/net/wireless/iwlwifi/dvm/commands.h
index 95ca026..174b0f1 100644
--- a/drivers/net/wireless/iwlwifi/dvm/commands.h
+++ b/drivers/net/wireless/iwlwifi/dvm/commands.h
@@ -1225,14 +1225,6 @@ struct iwl_rx_mpdu_res_start {
 #define TX_CMD_SEC_KEY128	0x08
 
 /*
- * security overhead sizes
- */
-#define WEP_IV_LEN 4
-#define WEP_ICV_LEN 4
-#define CCMP_MIC_LEN 8
-#define TKIP_ICV_LEN 4
-
-/*
  * REPLY_TX = 0x1c (command)
  */
 
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index c5e3029..2878ee9 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -224,13 +224,13 @@ static void iwl_pcie_txq_update_byte_cnt_tbl(struct iwl_trans *trans,
 
 	switch (sec_ctl & TX_CMD_SEC_MSK) {
 	case TX_CMD_SEC_CCM:
-		len += CCMP_MIC_LEN;
+		len += IEEE80211_CCMP_MIC_LEN;
 		break;
 	case TX_CMD_SEC_TKIP:
-		len += TKIP_ICV_LEN;
+		len += IEEE80211_TKIP_ICV_LEN;
 		break;
 	case TX_CMD_SEC_WEP:
-		len += WEP_IV_LEN + WEP_ICV_LEN;
+		len += IEEE80211_WEP_IV_LEN + IEEE80211_WEP_ICV_LEN;
 		break;
 	}
 
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 06b0ed0..d826e5a 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1829,6 +1829,15 @@ enum ieee80211_key_len {
 	WLAN_KEY_LEN_AES_CMAC = 16,
 };
 
+#define IEEE80211_WEP_IV_LEN		4
+#define IEEE80211_WEP_ICV_LEN		4
+#define IEEE80211_CCMP_HDR_LEN		8
+#define IEEE80211_CCMP_MIC_LEN		8
+#define IEEE80211_CCMP_PN_LEN		6
+#define IEEE80211_TKIP_IV_LEN		8
+#define IEEE80211_TKIP_ICV_LEN		4
+#define IEEE80211_CMAC_PN_LEN		6
+
 /* Public action codes */
 enum ieee80211_pub_actioncode {
 	WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c
index 0785e95..be7614b9 100644
--- a/net/mac80211/aes_ccm.c
+++ b/net/mac80211/aes_ccm.c
@@ -85,7 +85,7 @@ void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
 			*cpos++ = *pos++ ^ e[i];
 	}
 
-	for (i = 0; i < CCMP_MIC_LEN; i++)
+	for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++)
 		mic[i] = b[i] ^ s_0[i];
 }
 
@@ -123,7 +123,7 @@ int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
 		crypto_cipher_encrypt_one(tfm, a, a);
 	}
 
-	for (i = 0; i < CCMP_MIC_LEN; i++) {
+	for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++) {
 		if ((mic[i] ^ s_0[i]) != a[i])
 			return -1;
 	}
@@ -138,7 +138,7 @@ struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[])
 
 	tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
 	if (!IS_ERR(tfm))
-		crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN);
+		crypto_cipher_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
 
 	return tfm;
 }
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 67059b8..e39cc91 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -335,12 +335,12 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 	switch (cipher) {
 	case WLAN_CIPHER_SUITE_WEP40:
 	case WLAN_CIPHER_SUITE_WEP104:
-		key->conf.iv_len = WEP_IV_LEN;
-		key->conf.icv_len = WEP_ICV_LEN;
+		key->conf.iv_len = IEEE80211_WEP_IV_LEN;
+		key->conf.icv_len = IEEE80211_WEP_ICV_LEN;
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
-		key->conf.iv_len = TKIP_IV_LEN;
-		key->conf.icv_len = TKIP_ICV_LEN;
+		key->conf.iv_len = IEEE80211_TKIP_IV_LEN;
+		key->conf.icv_len = IEEE80211_TKIP_ICV_LEN;
 		if (seq) {
 			for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 				key->u.tkip.rx[i].iv32 =
@@ -352,13 +352,13 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		spin_lock_init(&key->u.tkip.txlock);
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
-		key->conf.iv_len = CCMP_HDR_LEN;
-		key->conf.icv_len = CCMP_MIC_LEN;
+		key->conf.iv_len = IEEE80211_CCMP_HDR_LEN;
+		key->conf.icv_len = IEEE80211_CCMP_MIC_LEN;
 		if (seq) {
 			for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++)
-				for (j = 0; j < CCMP_PN_LEN; j++)
+				for (j = 0; j < IEEE80211_CCMP_PN_LEN; j++)
 					key->u.ccmp.rx_pn[i][j] =
-						seq[CCMP_PN_LEN - j - 1];
+						seq[IEEE80211_CCMP_PN_LEN - j - 1];
 		}
 		/*
 		 * Initialize AES key state here as an optimization so that
@@ -375,9 +375,9 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		key->conf.iv_len = 0;
 		key->conf.icv_len = sizeof(struct ieee80211_mmie);
 		if (seq)
-			for (j = 0; j < CMAC_PN_LEN; j++)
+			for (j = 0; j < IEEE80211_CMAC_PN_LEN; j++)
 				key->u.aes_cmac.rx_pn[j] =
-					seq[CMAC_PN_LEN - j - 1];
+					seq[IEEE80211_CMAC_PN_LEN - j - 1];
 		/*
 		 * Initialize AES key state here as an optimization so that
 		 * it does not need to be initialized for every packet.
@@ -740,13 +740,13 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
 			pn = key->u.ccmp.rx_pn[IEEE80211_NUM_TIDS];
 		else
 			pn = key->u.ccmp.rx_pn[tid];
-		memcpy(seq->ccmp.pn, pn, CCMP_PN_LEN);
+		memcpy(seq->ccmp.pn, pn, IEEE80211_CCMP_PN_LEN);
 		break;
 	case WLAN_CIPHER_SUITE_AES_CMAC:
 		if (WARN_ON(tid != 0))
 			return;
 		pn = key->u.aes_cmac.rx_pn;
-		memcpy(seq->aes_cmac.pn, pn, CMAC_PN_LEN);
+		memcpy(seq->aes_cmac.pn, pn, IEEE80211_CMAC_PN_LEN);
 		break;
 	}
 }
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index e8de3e6..036d57e 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -19,17 +19,6 @@
 #define NUM_DEFAULT_KEYS 4
 #define NUM_DEFAULT_MGMT_KEYS 2
 
-#define WEP_IV_LEN		4
-#define WEP_ICV_LEN		4
-#define ALG_CCMP_KEY_LEN	16
-#define CCMP_HDR_LEN		8
-#define CCMP_MIC_LEN		8
-#define CCMP_TK_LEN		16
-#define CCMP_PN_LEN		6
-#define TKIP_IV_LEN		8
-#define TKIP_ICV_LEN		4
-#define CMAC_PN_LEN		6
-
 struct ieee80211_local;
 struct ieee80211_sub_if_data;
 struct sta_info;
@@ -93,13 +82,13 @@ struct ieee80211_key {
 			 * frames and the last counter is used with Robust
 			 * Management frames.
 			 */
-			u8 rx_pn[IEEE80211_NUM_TIDS + 1][CCMP_PN_LEN];
+			u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_CCMP_PN_LEN];
 			struct crypto_cipher *tfm;
 			u32 replays; /* dot11RSNAStatsCCMPReplays */
 		} ccmp;
 		struct {
 			atomic64_t tx_pn;
-			u8 rx_pn[CMAC_PN_LEN];
+			u8 rx_pn[IEEE80211_CMAC_PN_LEN];
 			struct crypto_cipher *tfm;
 			u32 replays; /* dot11RSNAStatsCMACReplays */
 			u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 22e412b..6e2c8c5 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1622,7 +1622,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 			entry->ccmp = 1;
 			memcpy(entry->last_pn,
 			       rx->key->u.ccmp.rx_pn[queue],
-			       CCMP_PN_LEN);
+			       IEEE80211_CCMP_PN_LEN);
 		}
 		return RX_QUEUED;
 	}
@@ -1641,21 +1641,21 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 	 * (IEEE 802.11i, 8.3.3.4.5) */
 	if (entry->ccmp) {
 		int i;
-		u8 pn[CCMP_PN_LEN], *rpn;
+		u8 pn[IEEE80211_CCMP_PN_LEN], *rpn;
 		int queue;
 		if (!rx->key || rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP)
 			return RX_DROP_UNUSABLE;
-		memcpy(pn, entry->last_pn, CCMP_PN_LEN);
-		for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
+		memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN);
+		for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) {
 			pn[i]++;
 			if (pn[i])
 				break;
 		}
 		queue = rx->security_idx;
 		rpn = rx->key->u.ccmp.rx_pn[queue];
-		if (memcmp(pn, rpn, CCMP_PN_LEN))
+		if (memcmp(pn, rpn, IEEE80211_CCMP_PN_LEN))
 			return RX_DROP_UNUSABLE;
-		memcpy(entry->last_pn, pn, CCMP_PN_LEN);
+		memcpy(entry->last_pn, pn, IEEE80211_CCMP_PN_LEN);
 	}
 
 	skb_pull(rx->skb, ieee80211_hdrlen(fc));
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index c04d401..6ee2b58 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -28,7 +28,7 @@
 int ieee80211_wep_init(struct ieee80211_local *local)
 {
 	/* start WEP IV from a random value */
-	get_random_bytes(&local->wep_iv, WEP_IV_LEN);
+	get_random_bytes(&local->wep_iv, IEEE80211_WEP_IV_LEN);
 
 	local->wep_tx_tfm = crypto_alloc_cipher("arc4", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(local->wep_tx_tfm)) {
@@ -98,20 +98,21 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
 
 	hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
 
-	if (WARN_ON(skb_tailroom(skb) < WEP_ICV_LEN ||
-		    skb_headroom(skb) < WEP_IV_LEN))
+	if (WARN_ON(skb_tailroom(skb) < IEEE80211_WEP_ICV_LEN ||
+		    skb_headroom(skb) < IEEE80211_WEP_IV_LEN))
 		return NULL;
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	newhdr = skb_push(skb, WEP_IV_LEN);
-	memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen);
+	newhdr = skb_push(skb, IEEE80211_WEP_IV_LEN);
+	memmove(newhdr, newhdr + IEEE80211_WEP_IV_LEN, hdrlen);
 
 	/* the HW only needs room for the IV, but not the actual IV */
 	if (info->control.hw_key &&
 	    (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
 		return newhdr + hdrlen;
 
-	skb_set_network_header(skb, skb_network_offset(skb) + WEP_IV_LEN);
+	skb_set_network_header(skb, skb_network_offset(skb) +
+				    IEEE80211_WEP_IV_LEN);
 	ieee80211_wep_get_iv(local, keylen, keyidx, newhdr + hdrlen);
 	return newhdr + hdrlen;
 }
@@ -125,8 +126,8 @@ static void ieee80211_wep_remove_iv(struct ieee80211_local *local,
 	unsigned int hdrlen;
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
-	skb_pull(skb, WEP_IV_LEN);
+	memmove(skb->data + IEEE80211_WEP_IV_LEN, skb->data, hdrlen);
+	skb_pull(skb, IEEE80211_WEP_IV_LEN);
 }
 
 
@@ -146,7 +147,7 @@ int ieee80211_wep_encrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
 	put_unaligned(icv, (__le32 *)(data + data_len));
 
 	crypto_cipher_setkey(tfm, rc4key, klen);
-	for (i = 0; i < data_len + WEP_ICV_LEN; i++)
+	for (i = 0; i < data_len + IEEE80211_WEP_ICV_LEN; i++)
 		crypto_cipher_encrypt_one(tfm, data + i, data + i);
 
 	return 0;
@@ -172,7 +173,7 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local,
 	if (!iv)
 		return -1;
 
-	len = skb->len - (iv + WEP_IV_LEN - skb->data);
+	len = skb->len - (iv + IEEE80211_WEP_IV_LEN - skb->data);
 
 	/* Prepend 24-bit IV to RC4 key */
 	memcpy(rc4key, iv, 3);
@@ -181,10 +182,10 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local,
 	memcpy(rc4key + 3, key, keylen);
 
 	/* Add room for ICV */
-	skb_put(skb, WEP_ICV_LEN);
+	skb_put(skb, IEEE80211_WEP_ICV_LEN);
 
 	return ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, keylen + 3,
-					  iv + WEP_IV_LEN, len);
+					  iv + IEEE80211_WEP_IV_LEN, len);
 }
 
 
@@ -201,11 +202,11 @@ int ieee80211_wep_decrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
 		return -1;
 
 	crypto_cipher_setkey(tfm, rc4key, klen);
-	for (i = 0; i < data_len + WEP_ICV_LEN; i++)
+	for (i = 0; i < data_len + IEEE80211_WEP_ICV_LEN; i++)
 		crypto_cipher_decrypt_one(tfm, data + i, data + i);
 
 	crc = cpu_to_le32(~crc32_le(~0, data, data_len));
-	if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0)
+	if (memcmp(&crc, data + data_len, IEEE80211_WEP_ICV_LEN) != 0)
 		/* ICV mismatch */
 		return -1;
 
@@ -237,10 +238,10 @@ static int ieee80211_wep_decrypt(struct ieee80211_local *local,
 		return -1;
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	if (skb->len < hdrlen + WEP_IV_LEN + WEP_ICV_LEN)
+	if (skb->len < hdrlen + IEEE80211_WEP_IV_LEN + IEEE80211_WEP_ICV_LEN)
 		return -1;
 
-	len = skb->len - hdrlen - WEP_IV_LEN - WEP_ICV_LEN;
+	len = skb->len - hdrlen - IEEE80211_WEP_IV_LEN - IEEE80211_WEP_ICV_LEN;
 
 	keyidx = skb->data[hdrlen + 3] >> 6;
 
@@ -256,16 +257,16 @@ static int ieee80211_wep_decrypt(struct ieee80211_local *local,
 	memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
 
 	if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
-				       skb->data + hdrlen + WEP_IV_LEN,
-				       len))
+				       skb->data + hdrlen +
+				       IEEE80211_WEP_IV_LEN, len))
 		ret = -1;
 
 	/* Trim ICV */
-	skb_trim(skb, skb->len - WEP_ICV_LEN);
+	skb_trim(skb, skb->len - IEEE80211_WEP_ICV_LEN);
 
 	/* Remove IV */
-	memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
-	skb_pull(skb, WEP_IV_LEN);
+	memmove(skb->data + IEEE80211_WEP_IV_LEN, skb->data, hdrlen);
+	skb_pull(skb, IEEE80211_WEP_IV_LEN);
 
 	return ret;
 }
@@ -305,13 +306,14 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
 		if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key))
 			return RX_DROP_UNUSABLE;
 	} else if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
-		if (!pskb_may_pull(rx->skb, ieee80211_hdrlen(fc) + WEP_IV_LEN))
+		if (!pskb_may_pull(rx->skb, ieee80211_hdrlen(fc) +
+					    IEEE80211_WEP_IV_LEN))
 			return RX_DROP_UNUSABLE;
 		if (rx->sta && ieee80211_wep_is_weak_iv(rx->skb, rx->key))
 			rx->sta->wep_weak_iv_count++;
 		ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
 		/* remove ICV */
-		if (pskb_trim(rx->skb, rx->skb->len - WEP_ICV_LEN))
+		if (pskb_trim(rx->skb, rx->skb->len - IEEE80211_WEP_ICV_LEN))
 			return RX_DROP_UNUSABLE;
 	}
 
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index c7c6d64..c9edfcb 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -62,10 +62,10 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
 
 	tail = MICHAEL_MIC_LEN;
 	if (!info->control.hw_key)
-		tail += TKIP_ICV_LEN;
+		tail += IEEE80211_TKIP_ICV_LEN;
 
 	if (WARN_ON(skb_tailroom(skb) < tail ||
-		    skb_headroom(skb) < TKIP_IV_LEN))
+		    skb_headroom(skb) < IEEE80211_TKIP_IV_LEN))
 		return TX_DROP;
 
 	key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY];
@@ -198,15 +198,16 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	if (info->control.hw_key)
 		tail = 0;
 	else
-		tail = TKIP_ICV_LEN;
+		tail = IEEE80211_TKIP_ICV_LEN;
 
 	if (WARN_ON(skb_tailroom(skb) < tail ||
-		    skb_headroom(skb) < TKIP_IV_LEN))
+		    skb_headroom(skb) < IEEE80211_TKIP_IV_LEN))
 		return -1;
 
-	pos = skb_push(skb, TKIP_IV_LEN);
-	memmove(pos, pos + TKIP_IV_LEN, hdrlen);
-	skb_set_network_header(skb, skb_network_offset(skb) + TKIP_IV_LEN);
+	pos = skb_push(skb, IEEE80211_TKIP_IV_LEN);
+	memmove(pos, pos + IEEE80211_TKIP_IV_LEN, hdrlen);
+	skb_set_network_header(skb, skb_network_offset(skb) +
+				    IEEE80211_TKIP_IV_LEN);
 	pos += hdrlen;
 
 	/* the HW only needs room for the IV, but not the actual IV */
@@ -227,7 +228,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 		return 0;
 
 	/* Add room for ICV */
-	skb_put(skb, TKIP_ICV_LEN);
+	skb_put(skb, IEEE80211_TKIP_ICV_LEN);
 
 	return ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
 					   key, skb, pos, len);
@@ -290,11 +291,11 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
 		return RX_DROP_UNUSABLE;
 
 	/* Trim ICV */
-	skb_trim(skb, skb->len - TKIP_ICV_LEN);
+	skb_trim(skb, skb->len - IEEE80211_TKIP_ICV_LEN);
 
 	/* Remove IV */
-	memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
-	skb_pull(skb, TKIP_IV_LEN);
+	memmove(skb->data + IEEE80211_TKIP_IV_LEN, skb->data, hdrlen);
+	skb_pull(skb, IEEE80211_TKIP_IV_LEN);
 
 	return RX_CONTINUE;
 }
@@ -337,9 +338,9 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
 	else
 		qos_tid = 0;
 
-	data_len = skb->len - hdrlen - CCMP_HDR_LEN;
+	data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN;
 	if (encrypted)
-		data_len -= CCMP_MIC_LEN;
+		data_len -= IEEE80211_CCMP_MIC_LEN;
 
 	/* First block, b_0 */
 	b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
@@ -348,7 +349,7 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
 	 */
 	b_0[1] = qos_tid | (mgmt << 4);
 	memcpy(&b_0[2], hdr->addr2, ETH_ALEN);
-	memcpy(&b_0[8], pn, CCMP_PN_LEN);
+	memcpy(&b_0[8], pn, IEEE80211_CCMP_PN_LEN);
 	/* l(m) */
 	put_unaligned_be16(data_len, &b_0[14]);
 
@@ -424,15 +425,16 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	if (info->control.hw_key)
 		tail = 0;
 	else
-		tail = CCMP_MIC_LEN;
+		tail = IEEE80211_CCMP_MIC_LEN;
 
 	if (WARN_ON(skb_tailroom(skb) < tail ||
-		    skb_headroom(skb) < CCMP_HDR_LEN))
+		    skb_headroom(skb) < IEEE80211_CCMP_HDR_LEN))
 		return -1;
 
-	pos = skb_push(skb, CCMP_HDR_LEN);
-	memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
-	skb_set_network_header(skb, skb_network_offset(skb) + CCMP_HDR_LEN);
+	pos = skb_push(skb, IEEE80211_CCMP_HDR_LEN);
+	memmove(pos, pos + IEEE80211_CCMP_HDR_LEN, hdrlen);
+	skb_set_network_header(skb, skb_network_offset(skb) +
+				    IEEE80211_CCMP_HDR_LEN);
 
 	/* the HW only needs room for the IV, but not the actual IV */
 	if (info->control.hw_key &&
@@ -457,10 +459,10 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	if (info->control.hw_key)
 		return 0;
 
-	pos += CCMP_HDR_LEN;
+	pos += IEEE80211_CCMP_HDR_LEN;
 	ccmp_special_blocks(skb, pn, scratch, 0);
 	ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, pos, len,
-				  pos, skb_put(skb, CCMP_MIC_LEN));
+				  pos, skb_put(skb, IEEE80211_CCMP_MIC_LEN));
 
 	return 0;
 }
@@ -490,7 +492,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 	struct ieee80211_key *key = rx->key;
 	struct sk_buff *skb = rx->skb;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
-	u8 pn[CCMP_PN_LEN];
+	u8 pn[IEEE80211_CCMP_PN_LEN];
 	int data_len;
 	int queue;
 
@@ -500,12 +502,13 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 	    !ieee80211_is_robust_mgmt_frame(hdr))
 		return RX_CONTINUE;
 
-	data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
+	data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN -
+		   IEEE80211_CCMP_MIC_LEN;
 	if (!rx->sta || data_len < 0)
 		return RX_DROP_UNUSABLE;
 
 	if (status->flag & RX_FLAG_DECRYPTED) {
-		if (!pskb_may_pull(rx->skb, hdrlen + CCMP_HDR_LEN))
+		if (!pskb_may_pull(rx->skb, hdrlen + IEEE80211_CCMP_HDR_LEN))
 			return RX_DROP_UNUSABLE;
 	} else {
 		if (skb_linearize(rx->skb))
@@ -516,7 +519,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 
 	queue = rx->security_idx;
 
-	if (memcmp(pn, key->u.ccmp.rx_pn[queue], CCMP_PN_LEN) <= 0) {
+	if (memcmp(pn, key->u.ccmp.rx_pn[queue], IEEE80211_CCMP_PN_LEN) <= 0) {
 		key->u.ccmp.replays++;
 		return RX_DROP_UNUSABLE;
 	}
@@ -528,19 +531,20 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 
 		if (ieee80211_aes_ccm_decrypt(
 			    key->u.ccmp.tfm, scratch,
-			    skb->data + hdrlen + CCMP_HDR_LEN, data_len,
-			    skb->data + skb->len - CCMP_MIC_LEN,
-			    skb->data + hdrlen + CCMP_HDR_LEN))
+			    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN,
+			    data_len,
+			    skb->data + skb->len - IEEE80211_CCMP_MIC_LEN,
+			    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN))
 			return RX_DROP_UNUSABLE;
 	}
 
-	memcpy(key->u.ccmp.rx_pn[queue], pn, CCMP_PN_LEN);
+	memcpy(key->u.ccmp.rx_pn[queue], pn, IEEE80211_CCMP_PN_LEN);
 
 	/* Remove CCMP header and MIC */
-	if (pskb_trim(skb, skb->len - CCMP_MIC_LEN))
+	if (pskb_trim(skb, skb->len - IEEE80211_CCMP_MIC_LEN))
 		return RX_DROP_UNUSABLE;
-	memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
-	skb_pull(skb, CCMP_HDR_LEN);
+	memmove(skb->data + IEEE80211_CCMP_HDR_LEN, skb->data, hdrlen);
+	skb_pull(skb, IEEE80211_CCMP_HDR_LEN);
 
 	return RX_CONTINUE;
 }
-- 
cgit v0.10.2


From bd500af223c9aed7083730b7044d53162065e418 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 6 May 2013 21:09:46 +0200
Subject: mac80211: write memcpy differently for smatch

There's no real difference between *array and array, but
the former confuses smatch so write it differently. The
generated code is exactly the same.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 1f51bdf..6698945 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -739,7 +739,7 @@ static void ieee80211_get_et_strings(struct wiphy *wiphy,
 
 	if (sset == ETH_SS_STATS) {
 		sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
-		memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
+		memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
 	}
 	drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
 }
-- 
cgit v0.10.2


From 7ade7036043e2e8e2831ae189ce5c248386062f1 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 13 May 2013 11:37:30 +0200
Subject: cfg80211: use C99 initialisers to simplify code a bit

Use C99 initialisers for the auth, deauth and disassoc
requests to simplify the code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 0c7b7dd..c21e32f 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -264,7 +264,16 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 			 const u8 *sae_data, int sae_data_len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct cfg80211_auth_request req;
+	struct cfg80211_auth_request req = {
+		.ie = ie,
+		.ie_len = ie_len,
+		.sae_data = sae_data,
+		.sae_data_len = sae_data_len,
+		.auth_type = auth_type,
+		.key = key,
+		.key_len = key_len,
+		.key_idx = key_idx,
+	};
 	int err;
 
 	ASSERT_WDEV_LOCK(wdev);
@@ -277,18 +286,8 @@ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 	    ether_addr_equal(bssid, wdev->current_bss->pub.bssid))
 		return -EALREADY;
 
-	memset(&req, 0, sizeof(req));
-
-	req.ie = ie;
-	req.ie_len = ie_len;
-	req.sae_data = sae_data;
-	req.sae_data_len = sae_data_len;
-	req.auth_type = auth_type;
 	req.bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
 				   WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
-	req.key = key;
-	req.key_len = key_len;
-	req.key_idx = key_idx;
 	if (!req.bss)
 		return -ENOENT;
 
@@ -480,7 +479,12 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 				    bool local_state_change)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct cfg80211_disassoc_request req;
+	struct cfg80211_disassoc_request req = {
+		.reason_code = reason,
+		.local_state_change = local_state_change,
+		.ie = ie,
+		.ie_len = ie_len,
+	};
 
 	ASSERT_WDEV_LOCK(wdev);
 
@@ -490,11 +494,6 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 	if (WARN(!wdev->current_bss, "sme_state=%d\n", wdev->sme_state))
 		return -ENOTCONN;
 
-	memset(&req, 0, sizeof(req));
-	req.reason_code = reason;
-	req.local_state_change = local_state_change;
-	req.ie = ie;
-	req.ie_len = ie_len;
 	if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
 		req.bss = &wdev->current_bss->pub;
 	else
@@ -523,24 +522,21 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 			struct net_device *dev)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct cfg80211_deauth_request req;
 	u8 bssid[ETH_ALEN];
+	struct cfg80211_deauth_request req = {
+		.reason_code = WLAN_REASON_DEAUTH_LEAVING,
+		.bssid = bssid,
+	};
 
 	ASSERT_WDEV_LOCK(wdev);
 
 	if (!rdev->ops->deauth)
 		return;
 
-	memset(&req, 0, sizeof(req));
-	req.reason_code = WLAN_REASON_DEAUTH_LEAVING;
-	req.ie = NULL;
-	req.ie_len = 0;
-
 	if (!wdev->current_bss)
 		return;
 
 	memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
-	req.bssid = bssid;
 	rdev_deauth(rdev, dev, &req);
 
 	if (wdev->current_bss) {
-- 
cgit v0.10.2


From 6e16d90b5218307db805e6b3e0b06d3946eb8c4c Mon Sep 17 00:00:00 2001
From: Colleen Twitty <colleen@cozybit.com>
Date: Wed, 8 May 2013 11:45:59 -0700
Subject: cfg80211: Userspace may inform kernel of mesh auth method.

Authentication takes place in userspace, but the beacon is
generated in the kernel.  Allow userspace to inform the
kernel of the authentication method so the appropriate
mesh config IE can be set prior to beacon generation when
joining the MBSS.

Signed-off-by: Colleen Twitty <colleen@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 26e9113..32a2f1b 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1161,6 +1161,7 @@ struct mesh_config {
  * @sync_method: which synchronization method to use
  * @path_sel_proto: which path selection protocol to use
  * @path_metric: which metric to use
+ * @auth_id: which authentication method this mesh is using
  * @ie: vendor information elements (optional)
  * @ie_len: length of vendor information elements
  * @is_authenticated: this mesh requires authentication
@@ -1179,6 +1180,7 @@ struct mesh_setup {
 	u8 sync_method;
 	u8 path_sel_proto;
 	u8 path_metric;
+	u8 auth_id;
 	const u8 *ie;
 	u8 ie_len;
 	bool is_authenticated;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index b484307..0632071 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2645,6 +2645,10 @@ enum nl80211_meshconf_params {
  * @NL80211_MESH_SETUP_USERSPACE_MPM: Enable this option if userspace will
  *	implement an MPM which handles peer allocation and state.
  *
+ * @NL80211_MESH_SETUP_AUTH_PROTOCOL: Inform the kernel of the authentication
+ *	method (u8, as defined in IEEE 8.4.2.100.6, e.g. 0x1 for SAE).
+ *	Default is no authentication method required.
+ *
  * @NL80211_MESH_SETUP_ATTR_MAX: highest possible mesh setup attribute number
  *
  * @__NL80211_MESH_SETUP_ATTR_AFTER_LAST: Internal use
@@ -2658,6 +2662,7 @@ enum nl80211_mesh_setup_params {
 	NL80211_MESH_SETUP_USERSPACE_AMPE,
 	NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC,
 	NL80211_MESH_SETUP_USERSPACE_MPM,
+	NL80211_MESH_SETUP_AUTH_PROTOCOL,
 
 	/* keep last */
 	__NL80211_MESH_SETUP_ATTR_AFTER_LAST,
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 0bb93f3..9546ad2 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -82,6 +82,7 @@ const struct mesh_setup default_mesh_setup = {
 	.sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET,
 	.path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP,
 	.path_metric = IEEE80211_PATH_METRIC_AIRTIME,
+	.auth_id = 0, /* open */
 	.ie = NULL,
 	.ie_len = 0,
 	.is_secure = false,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 9cdcd9e..5f10f7a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4672,6 +4672,7 @@ static const struct nla_policy
 	[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
 	[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
 	[NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
+	[NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
 	[NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
 	[NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
 				    .len = IEEE80211_MAX_DATA_LEN },
@@ -4857,6 +4858,13 @@ static int nl80211_parse_mesh_setup(struct genl_info *info,
 	if (setup->is_secure)
 		setup->user_mpm = true;
 
+	if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
+		if (!setup->user_mpm)
+			return -EINVAL;
+		setup->auth_id =
+			nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
+	}
+
 	return 0;
 }
 
-- 
cgit v0.10.2


From 0d4261ad5d0028b26cd88e645b4507eed8aab3f7 Mon Sep 17 00:00:00 2001
From: Colleen Twitty <colleen@cozybit.com>
Date: Wed, 8 May 2013 11:46:00 -0700
Subject: mac80211: enable Auth Protocol Identifier on mesh config.

Previously the mesh_auth_id was disabled.  Instead set the
correct mesh authentication bit based on the mesh setup.

Signed-off-by: Colleen Twitty <colleen@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 6698945..eb42190 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1746,6 +1746,7 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
 	ifmsh->mesh_pp_id = setup->path_sel_proto;
 	ifmsh->mesh_pm_id = setup->path_metric;
 	ifmsh->user_mpm = setup->user_mpm;
+	ifmsh->mesh_auth_id = setup->auth_id;
 	ifmsh->security = IEEE80211_MESH_SEC_NONE;
 	if (setup->is_authenticated)
 		ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 6952760..c13db9a 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -748,7 +748,6 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 	ieee80211_configure_filter(local);
 
 	ifmsh->mesh_cc_id = 0;	/* Disabled */
-	ifmsh->mesh_auth_id = 0;	/* Disabled */
 	/* register sync ops from extensible synchronization framework */
 	ifmsh->sync_ops = ieee80211_mesh_sync_ops_get(ifmsh->mesh_sp_id);
 	ifmsh->adjusting_tbtt = false;
-- 
cgit v0.10.2


From ce85788846ec19dcb7bef0dcbcf83fb64630f426 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Mon, 6 May 2013 17:17:04 +0300
Subject: mac80211: enable power save only if DTIM period is available

Generally, the DTIM period is available after a beacon has
been received, and if no beacon has been received enabling
powersave is problematic anyway for synchronisation. Since
some drivers may require the DTIM period for powersave,
don't enable powersave until it becomes available in case
the scan/association managed to not receive a beacon.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index a8016c0..ef378b9 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1390,6 +1390,9 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata)
 			  IEEE80211_STA_CONNECTION_POLL))
 		return false;
 
+	if (!sdata->vif.bss_conf.dtim_period)
+		return false;
+
 	rcu_read_lock();
 	sta = sta_info_get(sdata, mgd->bssid);
 	if (sta)
@@ -3126,6 +3129,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		}
 
 		changed |= BSS_CHANGED_DTIM_PERIOD;
+		ieee80211_recalc_ps_vif(sdata);
 	}
 
 	if (elems.erp_info) {
-- 
cgit v0.10.2


From 4270b871a266f615440ef716345c9f559f81eb30 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 6 May 2013 10:41:03 +0300
Subject: iwlwifi: mvm: add a missing define in firmware API

TX_CMD_SEC_MSK was missing.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
index 007a93b..6994232 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
@@ -134,6 +134,7 @@ enum iwl_tx_flags {
 #define TX_CMD_SEC_WEP			0x01
 #define TX_CMD_SEC_CCM			0x02
 #define TX_CMD_SEC_TKIP			0x03
+#define TX_CMD_SEC_MSK			0x07
 #define TX_CMD_SEC_WEP_KEY_IDX_POS	6
 #define TX_CMD_SEC_WEP_KEY_IDX_MSK	0xc0
 #define TX_CMD_SEC_KEY128		0x08
-- 
cgit v0.10.2


From 5b1dbfc3aa26327dede4cf7a88d7c1e71728e024 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Tue, 23 Apr 2013 13:32:35 +0300
Subject: iwlwifi: mvm: Add number of DTIMs to skip

New host-device API provides the ability to set the number
of DTIMs to skip. Add this parameter to the command and set
it (to a sane default value.)

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
index 90fdfcd..05e5192 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
@@ -101,19 +101,19 @@ enum iwl_power_flags {
  * @tx_data_timeout:    Minimum time (usec) from last Tx packet for AM to
  *			PSM transition - legacy PM
  * @sleep_interval:	not in use
- * @keep_alive_beacons:	not in use
+ * @num_skip_dtim:	Number of DTIMs to skip if Skip over DTIM flag is set
  * @lprx_rssi_threshold: Signal strength up to which LP RX can be enabled.
  *			Default: 80dbm
  */
 struct iwl_powertable_cmd {
-	/* PM_POWER_TABLE_CMD_API_S_VER_5 */
+	/* PM_POWER_TABLE_CMD_API_S_VER_6 */
 	__le16 flags;
 	u8 keep_alive_seconds;
 	u8 debug_flags;
 	__le32 rx_data_timeout;
 	__le32 tx_data_timeout;
 	__le32 sleep_interval[IWL_POWER_VEC_SIZE];
-	__le32 keep_alive_beacons;
+	__le32 num_skip_dtim;
 	__le32 lprx_rssi_threshold;
 } __packed;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 30a5c27..6c5dfc9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -91,6 +91,9 @@ static void iwl_mvm_power_log(struct iwl_mvm *mvm,
 				le32_to_cpu(cmd->tx_data_timeout));
 		IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
 				cmd->lprx_rssi_threshold);
+		if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
+			IWL_DEBUG_POWER(mvm, "DTIMs to skip = %u\n",
+					le32_to_cpu(cmd->num_skip_dtim));
 	}
 }
 
@@ -135,8 +138,10 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	/* Check skip over DTIM conditions */
 	if (!radar_detect && (dtimper <= 10) &&
-	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP))
+	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP)) {
 		cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
+		cmd->num_skip_dtim = cpu_to_le32(2);
+	}
 
 	/* Check that keep alive period is at least 3 * DTIM */
 	dtimper_msec = dtimper * vif->bss_conf.beacon_int;
-- 
cgit v0.10.2


From ee1e84225f779386858702872fb299457e7941f9 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Tue, 23 Apr 2013 13:52:10 +0300
Subject: iwlwifi: mvm: configure power management in D3

Configure power management in the D3 firmware by sending
the power table command to it when suspending; this uses
some values that are more suitable to a low power state.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 63d788a..4d3c978 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -1007,6 +1007,10 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	if (ret)
 		goto out;
 
+	ret = iwl_mvm_power_update_mode(mvm, vif);
+	if (ret)
+		goto out;
+
 	/* must be last -- this switches firmware state */
 	ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC,
 				   sizeof(d3_cfg_cmd), &d3_cfg_cmd);
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 6c5dfc9..f5bdfb7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -138,7 +138,8 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	/* Check skip over DTIM conditions */
 	if (!radar_detect && (dtimper <= 10) &&
-	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP)) {
+	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||
+	     mvm->cur_ucode == IWL_UCODE_WOWLAN)) {
 		cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 		cmd->num_skip_dtim = cpu_to_le32(2);
 	}
@@ -150,8 +151,13 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC);
 	cmd->keep_alive_seconds = keep_alive;
 
-	cmd->rx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
-	cmd->tx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
+	if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {
+		cmd->rx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
+		cmd->tx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC);
+	} else {
+		cmd->rx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);
+		cmd->tx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);
+	}
 }
 
 int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
-- 
cgit v0.10.2


From bf0fd5da8afdea8e1b1a2b42b8e9db068fbac96b Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 13 May 2013 17:05:27 +0300
Subject: iwlwifi: constify the source buffer of iwl_trans_write_mem

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 7a13790..0470334 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -455,7 +455,7 @@ struct iwl_trans_ops {
 	int (*read_mem)(struct iwl_trans *trans, u32 addr,
 			void *buf, int dwords);
 	int (*write_mem)(struct iwl_trans *trans, u32 addr,
-			 void *buf, int dwords);
+			 const void *buf, int dwords);
 	void (*configure)(struct iwl_trans *trans,
 			  const struct iwl_trans_config *trans_cfg);
 	void (*set_pmi)(struct iwl_trans *trans, bool state);
@@ -761,7 +761,7 @@ static inline u32 iwl_trans_read_mem32(struct iwl_trans *trans, u32 addr)
 }
 
 static inline int iwl_trans_write_mem(struct iwl_trans *trans, u32 addr,
-				      void *buf, int dwords)
+				      const void *buf, int dwords)
 {
 	return trans->ops->write_mem(trans, addr, buf, dwords);
 }
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index e536519..a785f49 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -924,11 +924,11 @@ static int iwl_trans_pcie_read_mem(struct iwl_trans *trans, u32 addr,
 }
 
 static int iwl_trans_pcie_write_mem(struct iwl_trans *trans, u32 addr,
-				    void *buf, int dwords)
+				    const void *buf, int dwords)
 {
 	unsigned long flags;
 	int offs, ret = 0;
-	u32 *vals = buf;
+	const u32 *vals = buf;
 
 	if (iwl_trans_grab_nic_access(trans, false, &flags)) {
 		iwl_write32(trans, HBUS_TARG_MEM_WADDR, addr);
-- 
cgit v0.10.2


From 82598b4f43312c01b976e02add9a5205e371f858 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 13 May 2013 21:44:42 +0200
Subject: iwlwifi: mvm: fix NVM parsing error path

If NVM parsing fails and returns NULL, we continue in
the code flow and eventually crash accessing the NULL
pointer. Return an error from iwl_nvm_init() if the
parsing failed.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index b8ec02f..c6c15f2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -231,8 +231,9 @@ int iwl_nvm_init(struct iwl_mvm *mvm)
 	if (ret < 0)
 		return ret;
 
-	ret = 0;
 	mvm->nvm_data = iwl_parse_nvm_sections(mvm);
+	if (!mvm->nvm_data)
+		return -ENODATA;
 
-	return ret;
+	return 0;
 }
-- 
cgit v0.10.2


From 0db53d005d004336be10807d07fc2cb271a53810 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 15 May 2013 13:05:25 +0200
Subject: iwlwifi: reverse DATA/INST section order

As the new MVM firmware files package the DATA section
first, and debugfs files want to access the DATA and
not INST section, reverse the order here. This is only
relevant for debugfs code that accesses the SRAM DATA
section and uses this constant to access the section.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index c4c446d..f844d5c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -106,11 +106,14 @@ enum iwl_ucode_type {
 
 /*
  * enumeration of ucode section.
- * This enumeration is used for legacy tlv style (before 16.0 uCode).
+ * This enumeration is used directly for older firmware (before 16.0).
+ * For new firmware, there can be up to 4 sections (see below) but the
+ * first one packaged into the firmware file is the DATA section and
+ * some debugging code accesses that.
  */
 enum iwl_ucode_sec {
-	IWL_UCODE_SECTION_INST,
 	IWL_UCODE_SECTION_DATA,
+	IWL_UCODE_SECTION_INST,
 };
 /*
  * For 16.0 uCode and above, there is no differentiation between sections,
-- 
cgit v0.10.2


From 07fd7d284dd01b46dea1986cb3bff20dfffe09bd Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 15 May 2013 14:38:25 +0200
Subject: iwlwifi: nvm: don't print NVM section reads by default

These messages aren't really useful, suppress them unless
EEPROM debugging is turned on.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index c6c15f2..ce464a5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -177,7 +177,8 @@ static int iwl_nvm_read_section(struct iwl_mvm *mvm, u16 section,
 		offset += ret;
 	}
 
-	IWL_INFO(mvm, "NVM section %d read completed\n", section);
+	IWL_DEBUG_EEPROM(mvm->trans->dev,
+			 "NVM section %d read completed\n", section);
 	return offset;
 }
 
-- 
cgit v0.10.2


From 1214755c2bfc74b56093ccae797cb295e89d3400 Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Thu, 9 May 2013 08:07:59 +0300
Subject: iwlwifi: support loading NVM data from file

Some newer devices will be integrated into the platform more
deeply and will not have embedded NVM (EEPROM/OTP). To support
such devices the NVM data must be provided by the platform,
allow loading the data via request_firmware() and then send it
to the device as needed.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 39aad98..4f88613 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1234,6 +1234,9 @@ MODULE_PARM_DESC(wd_disable,
 		"Disable stuck queue watchdog timer 0=system default, "
 		"1=disable, 2=enable (default: 0)");
 
+module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
+MODULE_PARM_DESC(nvm_file, "NVM file name");
+
 /*
  * set bt_coex_active to true, uCode will do kill/defer
  * every time the priority line is asserted (BT is sending signals on the
diff --git a/drivers/net/wireless/iwlwifi/iwl-modparams.h b/drivers/net/wireless/iwlwifi/iwl-modparams.h
index d6f6c37..36dfe09 100644
--- a/drivers/net/wireless/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/iwlwifi/iwl-modparams.h
@@ -119,6 +119,7 @@ struct iwl_mod_params {
 	int ant_coupling;
 	bool bt_ch_announce;
 	bool auto_agg;
+	char *nvm_file;
 };
 
 #endif /* #__iwl_modparams_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index ce464a5..3f05c6b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -60,6 +60,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  *****************************************************************************/
+#include <linux/firmware.h>
 #include "iwl-trans.h"
 #include "mvm.h"
 #include "iwl-eeprom-parse.h"
@@ -75,20 +76,46 @@ static const int nvm_to_read[] = {
 };
 
 /* Default NVM size to read */
-#define IWL_NVM_DEFAULT_CHUNK_SIZE (2*1024);
+#define IWL_NVM_DEFAULT_CHUNK_SIZE (2*1024)
+#define IWL_MAX_NVM_SECTION_SIZE 6000
 
-static inline void iwl_nvm_fill_read(struct iwl_nvm_access_cmd *cmd,
-				     u16 offset, u16 length, u16 section)
+#define NVM_WRITE_OPCODE 1
+#define NVM_READ_OPCODE 0
+
+/*
+ * prepare the NVM host command w/ the pointers to the nvm buffer
+ * and send it to fw
+ */
+static int iwl_nvm_write_chunk(struct iwl_mvm *mvm, u16 section,
+			       u16 offset, u16 length, const u8 *data)
 {
-	cmd->offset = cpu_to_le16(offset);
-	cmd->length = cpu_to_le16(length);
-	cmd->type = cpu_to_le16(section);
+	struct iwl_nvm_access_cmd nvm_access_cmd = {
+		.offset = cpu_to_le16(offset),
+		.length = cpu_to_le16(length),
+		.type = cpu_to_le16(section),
+		.op_code = NVM_WRITE_OPCODE,
+	};
+	struct iwl_host_cmd cmd = {
+		.id = NVM_ACCESS_CMD,
+		.len = { sizeof(struct iwl_nvm_access_cmd), length },
+		.flags = CMD_SYNC,
+		.data = { &nvm_access_cmd, data },
+		/* data may come from vmalloc, so use _DUP */
+		.dataflags = { 0, IWL_HCMD_DFL_DUP },
+	};
+
+	return iwl_mvm_send_cmd(mvm, &cmd);
 }
 
 static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section,
 			      u16 offset, u16 length, u8 *data)
 {
-	struct iwl_nvm_access_cmd nvm_access_cmd = {};
+	struct iwl_nvm_access_cmd nvm_access_cmd = {
+		.offset = cpu_to_le16(offset),
+		.length = cpu_to_le16(length),
+		.type = cpu_to_le16(section),
+		.op_code = NVM_READ_OPCODE,
+	};
 	struct iwl_nvm_access_resp *nvm_resp;
 	struct iwl_rx_packet *pkt;
 	struct iwl_host_cmd cmd = {
@@ -99,7 +126,6 @@ static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section,
 	int ret, bytes_read, offset_read;
 	u8 *resp_data;
 
-	iwl_nvm_fill_read(&nvm_access_cmd, offset, length, section);
 	cmd.len[0] = sizeof(struct iwl_nvm_access_cmd);
 
 	ret = iwl_mvm_send_cmd(mvm, &cmd);
@@ -144,6 +170,30 @@ exit:
 	return ret;
 }
 
+static int iwl_nvm_write_section(struct iwl_mvm *mvm, u16 section,
+				 const u8 *data, u16 length)
+{
+	int offset = 0;
+
+	/* copy data in chunks of 2k (and remainder if any) */
+
+	while (offset < length) {
+		int chunk_size, ret;
+
+		chunk_size = min(IWL_NVM_DEFAULT_CHUNK_SIZE,
+				 length - offset);
+
+		ret = iwl_nvm_write_chunk(mvm, section, offset,
+					  chunk_size, data + offset);
+		if (ret < 0)
+			return ret;
+
+		offset += chunk_size;
+	}
+
+	return 0;
+}
+
 /*
  * Reads an NVM section completely.
  * NICs prior to 7000 family doesn't have a real NVM, but just read
@@ -204,11 +254,143 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm)
 	return iwl_parse_nvm_data(mvm->trans->dev, mvm->cfg, hw, sw, calib);
 }
 
+#define MAX_NVM_FILE_LEN	16384
+
+/*
+ * HOW TO CREATE THE NVM FILE FORMAT:
+ * ------------------------------
+ * 1. create hex file, format:
+ *      3800 -> header
+ *      0000 -> header
+ *      5a40 -> data
+ *
+ *   rev - 6 bit (word1)
+ *   len - 10 bit (word1)
+ *   id - 4 bit (word2)
+ *   rsv - 12 bit (word2)
+ *
+ * 2. flip 8bits with 8 bits per line to get the right NVM file format
+ *
+ * 3. create binary file from the hex file
+ *
+ * 4. save as "iNVM_xxx.bin" under /lib/firmware
+ */
+static int iwl_mvm_load_external_nvm(struct iwl_mvm *mvm)
+{
+	int ret, section_id, section_size;
+	const struct firmware *fw_entry;
+	const struct {
+		__le16 word1;
+		__le16 word2;
+		u8 data[];
+	} *file_sec;
+	const u8 *eof;
+
+#define NVM_WORD1_LEN(x) (8 * (x & 0x03FF))
+#define NVM_WORD2_ID(x) (x >> 12)
+
+	/*
+	 * Obtain NVM image via request_firmware. Since we already used
+	 * request_firmware_nowait() for the firmware binary load and only
+	 * get here after that we assume the NVM request can be satisfied
+	 * synchronously.
+	 */
+	ret = request_firmware(&fw_entry, iwlwifi_mod_params.nvm_file,
+			       mvm->trans->dev);
+	if (ret) {
+		IWL_ERR(mvm, "ERROR: %s isn't available %d\n",
+			iwlwifi_mod_params.nvm_file, ret);
+		return ret;
+	}
+
+	IWL_INFO(mvm, "Loaded NVM file %s (%zu bytes)\n",
+		 iwlwifi_mod_params.nvm_file, fw_entry->size);
+
+	if (fw_entry->size < sizeof(*file_sec)) {
+		IWL_ERR(mvm, "NVM file too small\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (fw_entry->size > MAX_NVM_FILE_LEN) {
+		IWL_ERR(mvm, "NVM file too large\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	eof = fw_entry->data + fw_entry->size;
+
+	file_sec = (void *)fw_entry->data;
+
+	while (true) {
+		if (file_sec->data > eof) {
+			IWL_ERR(mvm,
+				"ERROR - NVM file too short for section header\n");
+			ret = -EINVAL;
+			break;
+		}
+
+		/* check for EOF marker */
+		if (!file_sec->word1 && !file_sec->word2) {
+			ret = 0;
+			break;
+		}
+
+		section_size = 2 * NVM_WORD1_LEN(le16_to_cpu(file_sec->word1));
+		section_id = NVM_WORD2_ID(le16_to_cpu(file_sec->word2));
+
+		if (section_size > IWL_MAX_NVM_SECTION_SIZE) {
+			IWL_ERR(mvm, "ERROR - section too large (%d)\n",
+				section_size);
+			ret = -EINVAL;
+			break;
+		}
+
+		if (!section_size) {
+			IWL_ERR(mvm, "ERROR - section empty\n");
+			ret = -EINVAL;
+			break;
+		}
+
+		if (file_sec->data + section_size > eof) {
+			IWL_ERR(mvm,
+				"ERROR - NVM file too short for section (%d bytes)\n",
+				section_size);
+			ret = -EINVAL;
+			break;
+		}
+
+		ret = iwl_nvm_write_section(mvm, section_id, file_sec->data,
+					    section_size);
+		if (ret < 0) {
+			IWL_ERR(mvm, "iwl_mvm_send_cmd failed: %d\n", ret);
+			break;
+		}
+
+		/* advance to the next section */
+		file_sec = (void *)(file_sec->data + section_size);
+	}
+out:
+	release_firmware(fw_entry);
+	return ret;
+}
+
 int iwl_nvm_init(struct iwl_mvm *mvm)
 {
 	int ret, i, section;
 	u8 *nvm_buffer, *temp;
 
+	/* load external NVM if configured */
+	if (iwlwifi_mod_params.nvm_file) {
+		/* move to External NVM flow */
+		ret = iwl_mvm_load_external_nvm(mvm);
+		if (ret)
+			return ret;
+	}
+
+	/* Read From FW NVM */
+	IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n");
+
 	/* TODO: find correct NVM max size for a section */
 	nvm_buffer = kmalloc(mvm->cfg->base_params->eeprom_size,
 			     GFP_KERNEL);
-- 
cgit v0.10.2


From 4f59334bb4a626b91ea31f2bb3515e6a586ea1ae Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Mon, 13 May 2013 07:53:26 +0300
Subject: iwlwifi: fix initialisation while RF-kill is asserted

If RF-kill is asserted while a device is initialized, the
firmware INIT image can now be run to retrieve the NVM
data and register to mac80211 properly. Previously, the
initialisation would fail in this scenario and the driver
wouldn't register with mac80211 at all, making the device
unusable.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 0470334..84f1c8d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -189,7 +189,8 @@ enum CMD_MODE {
 	CMD_SYNC		= 0,
 	CMD_ASYNC		= BIT(0),
 	CMD_WANT_SKB		= BIT(1),
-	CMD_ON_DEMAND		= BIT(2),
+	CMD_SEND_IN_RFKILL	= BIT(2),
+	CMD_ON_DEMAND		= BIT(3),
 };
 
 #define DEF_CMD_PAYLOAD_SIZE 320
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index a4071cf..20ee2812 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -326,6 +326,17 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 	ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
 	WARN_ON(ret);
 
+	/*
+	 * abort after reading the nvm in case RF Kill is on, we will complete
+	 * the init seq later when RF kill will switch to off
+	 */
+	if (test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status)) {
+		IWL_DEBUG_RF_KILL(mvm,
+				  "jump over all phy activities due to RF kill\n");
+		iwl_remove_notification(&mvm->notif_wait, &calib_wait);
+		return 1;
+	}
+
 	/* Send TX valid antennas before triggering calibrations */
 	ret = iwl_send_tx_ant_cfg(mvm, iwl_fw_valid_tx_ant(mvm->fw));
 	if (ret)
@@ -402,8 +413,16 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 		ret = iwl_run_init_mvm_ucode(mvm, false);
 		if (ret && !iwlmvm_mod_params.init_dbg) {
 			IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
+			/* this can't happen */
+			if (WARN_ON(ret > 0))
+				ret = -ERFKILL;
 			goto error;
 		}
+		/* should stop & start HW since that INIT image just loaded */
+		iwl_trans_stop_hw(mvm->trans, false);
+		ret = iwl_trans_start_hw(mvm->trans);
+		if (ret)
+			return ret;
 	}
 
 	if (iwlmvm_mod_params.init_dbg)
diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index 3f05c6b..2cd669c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -98,7 +98,7 @@ static int iwl_nvm_write_chunk(struct iwl_mvm *mvm, u16 section,
 	struct iwl_host_cmd cmd = {
 		.id = NVM_ACCESS_CMD,
 		.len = { sizeof(struct iwl_nvm_access_cmd), length },
-		.flags = CMD_SYNC,
+		.flags = CMD_SYNC | CMD_SEND_IN_RFKILL,
 		.data = { &nvm_access_cmd, data },
 		/* data may come from vmalloc, so use _DUP */
 		.dataflags = { 0, IWL_HCMD_DFL_DUP },
@@ -120,7 +120,7 @@ static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section,
 	struct iwl_rx_packet *pkt;
 	struct iwl_host_cmd cmd = {
 		.id = NVM_ACCESS_CMD,
-		.flags = CMD_SYNC | CMD_WANT_SKB,
+		.flags = CMD_SYNC | CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
 		.data = { &nvm_access_cmd, },
 	};
 	int ret, bytes_read, offset_read;
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index bb79a8d..e3f69a0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -396,7 +396,8 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	mutex_lock(&mvm->mutex);
 	err = iwl_run_init_mvm_ucode(mvm, true);
 	mutex_unlock(&mvm->mutex);
-	if (err && !iwlmvm_mod_params.init_dbg) {
+	/* returns 0 if successful, 1 if success but in rfkill */
+	if (err < 0 && !iwlmvm_mod_params.init_dbg) {
 		IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
 		goto out_free;
 	}
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 595df17..bf5f824 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1569,7 +1569,8 @@ int iwl_trans_pcie_send_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd)
 	if (test_bit(STATUS_FW_ERROR, &trans_pcie->status))
 		return -EIO;
 
-	if (test_bit(STATUS_RFKILL, &trans_pcie->status)) {
+	if (!(cmd->flags & CMD_SEND_IN_RFKILL) &&
+	    test_bit(STATUS_RFKILL, &trans_pcie->status)) {
 		IWL_DEBUG_RF_KILL(trans, "Dropping CMD 0x%x: RF KILL\n",
 				  cmd->id);
 		return -ERFKILL;
-- 
cgit v0.10.2


From 60191d99a9a472aef07d9e023f47a2503ae51f00 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 15 May 2013 13:08:51 +0200
Subject: iwlwifi: mvm: don't store section offset/length in debugfs

When different images can (soon) be accessed through this
file, storing the section offset/length on first access to
the file breaks (or needs manual reset). Avoid this by not
storing the offset/length values but using them locally in
the function only. That way, the correct values are always
used.

While at it, correct the check that firmware is loaded.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 0765827..95871b2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -145,16 +145,18 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 	char *buf;
 	u8 *ptr;
 
+	if (!mvm->ucode_loaded)
+		return -EINVAL;
+
 	/* default is to dump the entire data segment */
 	if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) {
-		if (!mvm->ucode_loaded)
-			return -EINVAL;
 		img = &mvm->fw->img[mvm->cur_ucode];
-		mvm->dbgfs_sram_offset =
-			img->sec[IWL_UCODE_SECTION_DATA].offset;
-		mvm->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
+		ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
+		len = img->sec[IWL_UCODE_SECTION_DATA].len;
+	} else {
+		ofs = mvm->dbgfs_sram_offset;
+		len = mvm->dbgfs_sram_len;
 	}
-	len = mvm->dbgfs_sram_len;
 
 	bufsz = len * 4 + 256;
 	buf = kzalloc(bufsz, GFP_KERNEL);
@@ -168,12 +170,9 @@ static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf,
 	}
 
 	pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len);
-	pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
-			 mvm->dbgfs_sram_offset);
+	pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", ofs);
 
-	iwl_trans_read_mem_bytes(mvm->trans,
-				 mvm->dbgfs_sram_offset,
-				 ptr, len);
+	iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len);
 	for (ofs = 0; ofs < len; ofs += 16) {
 		pos += scnprintf(buf + pos, bufsz - pos, "0x%.4x ", ofs);
 		hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos,
-- 
cgit v0.10.2


From dfcb4c3aacedee6838e436fb575b31e138505203 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 15 May 2013 11:44:49 +0200
Subject: iwlwifi: mvm: adjust firmware D3 configuration API

The D3 firmware API changed to include a new field, adjust
the driver to it to avoid getting an NMI when configuring.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
index 51e015d..6f8b2c1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
@@ -75,13 +75,15 @@ enum iwl_d3_wakeup_flags {
  * struct iwl_d3_manager_config - D3 manager configuration command
  * @min_sleep_time: minimum sleep time (in usec)
  * @wakeup_flags: wakeup flags, see &enum iwl_d3_wakeup_flags
+ * @wakeup_host_timer: force wakeup after this many seconds
  *
  * The structure is used for the D3_CONFIG_CMD command.
  */
 struct iwl_d3_manager_config {
 	__le32 min_sleep_time;
 	__le32 wakeup_flags;
-} __packed; /* D3_MANAGER_CONFIG_CMD_S_VER_3 */
+	__le32 wakeup_host_timer;
+} __packed; /* D3_MANAGER_CONFIG_CMD_S_VER_4 */
 
 
 /* TODO: OFFLOADS_QUERY_API_S_VER_1 */
-- 
cgit v0.10.2


From d2cf43674e17ca1c16c68d46d987d2f17bf7c371 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 15 May 2013 19:25:55 +0000
Subject: tcp: speedup tcp_fixup_rcvbuf()

tcp_fixup_rcvbuf() contains a loop to estimate initial socket
rcv space needed for a given mss. With large MTU (like 64K on lo),
we can loop ~500 times and consume a lot of cpu cycles.

perf top of 200 concurrent netperf -t TCP_CRR

5.62%  netperf  [kernel.kallsyms]  [k] tcp_init_buffer_space
1.71%  netperf  [kernel.kallsyms]  [k] _raw_spin_lock
1.55%  netperf  [kernel.kallsyms]  [k] kmem_cache_free
1.51%  netperf  [kernel.kallsyms]  [k] tcp_transmit_skb
1.50%  netperf  [kernel.kallsyms]  [k] tcp_ack

Lets use a 100% factor, and remove the loop.

100% is needed anyway for tcp_adv_win_scale=1
default value, and is also the maximum factor.

Refs: commit b49960a05e32
      ("tcp: change tcp_adv_win_scale and tcp_rmem[2]")

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 08bbe60..b358e8c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -360,9 +360,7 @@ static void tcp_fixup_rcvbuf(struct sock *sk)
 	if (mss > 1460)
 		icwnd = max_t(u32, (1460 * TCP_DEFAULT_INIT_RCVWND) / mss, 2);
 
-	rcvmem = SKB_TRUESIZE(mss + MAX_TCP_HEADER);
-	while (tcp_win_from_space(rcvmem) < mss)
-		rcvmem += 128;
+	rcvmem = 2 * SKB_TRUESIZE(mss + MAX_TCP_HEADER);
 
 	rcvmem *= icwnd;
 
-- 
cgit v0.10.2


From d6a98c9680a6f885715ce64daa5de73b33d3edd4 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Thu, 16 May 2013 01:15:41 +0000
Subject: drivers/net/ethernet/renesas: don't check resource with
 devm_ioremap_resource

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 33dc6f2..42e9dd0 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2745,11 +2745,6 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	if (mdp->cd->tsu) {
 		struct resource *rtsu;
 		rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-		if (!rtsu) {
-			dev_err(&pdev->dev, "Not found TSU resource\n");
-			ret = -ENODEV;
-			goto out_release;
-		}
 		mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu);
 		if (IS_ERR(mdp->tsu_addr)) {
 			ret = PTR_ERR(mdp->tsu_addr);
-- 
cgit v0.10.2


From ed8a83a1f4655a31e0080a19f08d896bb29434a9 Mon Sep 17 00:00:00 2001
From: "govindarajulu.v" <govindarajulu90@gmail.com>
Date: Thu, 16 May 2013 06:24:41 +0000
Subject: net: 3com: 3c509: remove unnecessary code

This patch removes unnecessary #if 0 code from 3c509.c

Signed-off-by: govindarajulu.v <govindarajulu90@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/3com/3c509.c b/drivers/net/ethernet/3com/3c509.c
index adb4bf5..ede8daa 100644
--- a/drivers/net/ethernet/3com/3c509.c
+++ b/drivers/net/ethernet/3com/3c509.c
@@ -723,25 +723,6 @@ el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		pr_debug("%s: el3_start_xmit(length = %u) called, status %4.4x.\n",
 			   dev->name, skb->len, inw(ioaddr + EL3_STATUS));
 	}
-#if 0
-#ifndef final_version
-	{	/* Error-checking code, delete someday. */
-		ushort status = inw(ioaddr + EL3_STATUS);
-		if (status & 0x0001 && 		/* IRQ line active, missed one. */
-		    inw(ioaddr + EL3_STATUS) & 1) { 			/* Make sure. */
-			pr_debug("%s: Missed interrupt, status then %04x now %04x"
-				   "  Tx %2.2x Rx %4.4x.\n", dev->name, status,
-				   inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS),
-				   inw(ioaddr + RX_STATUS));
-			/* Fake interrupt trigger by masking, acknowledge interrupts. */
-			outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
-			outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
-				 ioaddr + EL3_CMD);
-			outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
-		}
-	}
-#endif
-#endif
 	/*
 	 *	We lock the driver against other processors. Note
 	 *	we don't need to lock versus the IRQ as we suspended
-- 
cgit v0.10.2


From bfd428daaf619d671f6463bd8c7e4df8107e4775 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
Date: Fri, 17 May 2013 10:42:53 +0000
Subject: net: ethernet: sun: initialize variables directly
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Clean up the code a bit to initialize the variables directly when
defining them.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sun/sunbmac.c b/drivers/net/ethernet/sun/sunbmac.c
index 0549759..09b4f8c 100644
--- a/drivers/net/ethernet/sun/sunbmac.c
+++ b/drivers/net/ethernet/sun/sunbmac.c
@@ -1017,10 +1017,7 @@ static void bigmac_set_multicast(struct net_device *dev)
 		tmp |= BIGMAC_RXCFG_PMISC;
 		sbus_writel(tmp, bregs + BMAC_RXCFG);
 	} else {
-		u16 hash_table[4];
-
-		for (i = 0; i < 4; i++)
-			hash_table[i] = 0;
+		u16 hash_table[4] = { 0 };
 
 		netdev_for_each_mc_addr(ha, dev) {
 			crc = ether_crc_le(6, ha->addr);
-- 
cgit v0.10.2


From 3b0aaef800c0949198fb6304adc7ff1ae7413f02 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
Date: Fri, 17 May 2013 10:42:54 +0000
Subject: net: ethernet: apple: initialize variables directly
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Clean up the code a bit to initialize the variables directly when
defining them.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/apple/bmac.c b/drivers/net/ethernet/apple/bmac.c
index f36bbd6..714dcfe 100644
--- a/drivers/net/ethernet/apple/bmac.c
+++ b/drivers/net/ethernet/apple/bmac.c
@@ -1030,14 +1030,12 @@ static void bmac_set_multicast(struct net_device *dev)
 		rx_cfg |= RxPromiscEnable;
 		bmwrite(dev, RXCFG, rx_cfg);
 	} else {
-		u16 hash_table[4];
+		u16 hash_table[4] = { 0 };
 
 		rx_cfg = bmread(dev, RXCFG);
 		rx_cfg &= ~RxPromiscEnable;
 		bmwrite(dev, RXCFG, rx_cfg);
 
-		for(i = 0; i < 4; i++) hash_table[i] = 0;
-
 		netdev_for_each_mc_addr(ha, dev) {
 			crc = ether_crc_le(6, ha->addr);
 			crc >>= 26;
-- 
cgit v0.10.2


From 35e729ac5d5c1a164aee475583cb9830e9707b61 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
Date: Fri, 17 May 2013 10:42:55 +0000
Subject: net: ethernet: davicom: dm9000: initialize variables directly
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Clean up the code a bit to initialize the variables directly when
defining them.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index 9105465..a2408c8 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -827,7 +827,7 @@ dm9000_hash_table_unlocked(struct net_device *dev)
 	struct netdev_hw_addr *ha;
 	int i, oft;
 	u32 hash_val;
-	u16 hash_table[4];
+	u16 hash_table[4] = { 0, 0, 0, 0x8000 }; /* broadcast address */
 	u8 rcr = RCR_DIS_LONG | RCR_DIS_CRC | RCR_RXEN;
 
 	dm9000_dbg(db, 1, "entering %s\n", __func__);
@@ -835,13 +835,6 @@ dm9000_hash_table_unlocked(struct net_device *dev)
 	for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++)
 		iow(db, oft, dev->dev_addr[i]);
 
-	/* Clear Hash Table */
-	for (i = 0; i < 4; i++)
-		hash_table[i] = 0x0;
-
-	/* broadcast address */
-	hash_table[3] = 0x8000;
-
 	if (dev->flags & IFF_PROMISC)
 		rcr |= RCR_PRMSC;
 
-- 
cgit v0.10.2


From e998fd413e5e7dac750dfe79c79cbf8f417d41b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
Date: Fri, 17 May 2013 10:42:56 +0000
Subject: net: ethernet: korina: initialize variables directly
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Clean up the code a bit to initialize the variables directly when
defining them.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 5409fe8..0b57085 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -495,12 +495,9 @@ static void korina_multicast_list(struct net_device *dev)
 
 	/* Build the hash table */
 	if (netdev_mc_count(dev) > 4) {
-		u16 hash_table[4];
+		u16 hash_table[4] = { 0 };
 		u32 crc;
 
-		for (i = 0; i < 4; i++)
-			hash_table[i] = 0;
-
 		netdev_for_each_mc_addr(ha, dev) {
 			crc = ether_crc_le(6, ha->addr);
 			crc >>= 26;
-- 
cgit v0.10.2


From 553675fb5e9ce3d71aa6cb527f98cd34793c0dbc Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Thu, 16 May 2013 11:35:20 +0000
Subject: vxlan: listen on multiple ports

The commit 823aa873bc782f1c51b1ce8ec6da7cfcaf93836e
  Author: stephen hemminger <stephen@networkplumber.org>
  Date:   Sat Apr 27 11:31:57 2013 +0000

    vxlan: allow choosing destination port per vxlan

introduced per-vxlan UDP port configuration but only did half of the
necessary work.  It added per vxlan destination for sending, but
overlooked the handling of multiple ports for incoming traffic.

This patch changes the listening port management to handle multiple
incoming UDP ports. The earlier per-namespace structure is now a hash
list per namespace.

It is also now possible to define the same virtual network id
but with different UDP port values which can be useful for migration.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index ba81f3c..80d359c 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -44,6 +44,8 @@
 
 #define VXLAN_VERSION	"0.1"
 
+#define PORT_HASH_BITS	8
+#define PORT_HASH_SIZE  (1<<PORT_HASH_BITS)
 #define VNI_HASH_BITS	10
 #define VNI_HASH_SIZE	(1<<VNI_HASH_BITS)
 #define FDB_HASH_BITS	8
@@ -76,13 +78,24 @@ static bool log_ecn_error = true;
 module_param(log_ecn_error, bool, 0644);
 MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
 
-/* per-net private data for this module */
 static unsigned int vxlan_net_id;
-struct vxlan_net {
-	struct socket	  *sock;	/* UDP encap socket */
+
+/* per UDP socket information */
+struct vxlan_sock {
+	struct hlist_node hlist;
+	struct rcu_head	  rcu;
+	struct work_struct del_work;
+	unsigned int	  refcnt;
+	struct socket	  *sock;
 	struct hlist_head vni_list[VNI_HASH_SIZE];
 };
 
+/* per-network namespace private data for this module */
+struct vxlan_net {
+	struct list_head  vxlan_list;
+	struct hlist_head sock_list[PORT_HASH_SIZE];
+};
+
 struct vxlan_rdst {
 	struct rcu_head		 rcu;
 	__be32			 remote_ip;
@@ -106,7 +119,9 @@ struct vxlan_fdb {
 
 /* Pseudo network device */
 struct vxlan_dev {
-	struct hlist_node hlist;
+	struct hlist_node hlist;	/* vni hash table */
+	struct list_head  next;		/* vxlan's per namespace list */
+	struct vxlan_sock *vn_sock;	/* listening socket */
 	struct net_device *dev;
 	struct vxlan_rdst default_dst;	/* default destination */
 	__be32		  saddr;	/* source address */
@@ -135,19 +150,43 @@ struct vxlan_dev {
 /* salt for hash table */
 static u32 vxlan_salt __read_mostly;
 
-static inline struct hlist_head *vni_head(struct net *net, u32 id)
+/* Virtual Network hash table head */
+static inline struct hlist_head *vni_head(struct vxlan_sock *vs, u32 id)
+{
+	return &vs->vni_list[hash_32(id, VNI_HASH_BITS)];
+}
+
+/* Socket hash table head */
+static inline struct hlist_head *vs_head(struct net *net, __be16 port)
 {
 	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
 
-	return &vn->vni_list[hash_32(id, VNI_HASH_BITS)];
+	return &vn->sock_list[hash_32(ntohs(port), PORT_HASH_BITS)];
+}
+
+/* Find VXLAN socket based on network namespace and UDP port */
+static struct vxlan_sock *vxlan_find_port(struct net *net, __be16 port)
+{
+	struct vxlan_sock *vs;
+
+	hlist_for_each_entry_rcu(vs, vs_head(net, port), hlist) {
+		if (inet_sk(vs->sock->sk)->inet_sport == port)
+			return vs;
+	}
+	return NULL;
 }
 
 /* Look up VNI in a per net namespace table */
-static struct vxlan_dev *vxlan_find_vni(struct net *net, u32 id)
+static struct vxlan_dev *vxlan_find_vni(struct net *net, u32 id, __be16 port)
 {
+	struct vxlan_sock *vs;
 	struct vxlan_dev *vxlan;
 
-	hlist_for_each_entry_rcu(vxlan, vni_head(net, id), hlist) {
+	vs = vxlan_find_port(net, port);
+	if (!vs)
+		return NULL;
+
+	hlist_for_each_entry_rcu(vxlan, vni_head(vs, id), hlist) {
 		if (vxlan->default_dst.remote_vni == id)
 			return vxlan;
 	}
@@ -592,20 +631,18 @@ static void vxlan_snoop(struct net_device *dev,
 static bool vxlan_group_used(struct vxlan_net *vn,
 			     const struct vxlan_dev *this)
 {
-	const struct vxlan_dev *vxlan;
-	unsigned h;
+	struct vxlan_dev *vxlan;
 
-	for (h = 0; h < VNI_HASH_SIZE; ++h)
-		hlist_for_each_entry(vxlan, &vn->vni_list[h], hlist) {
-			if (vxlan == this)
-				continue;
+	list_for_each_entry(vxlan, &vn->vxlan_list, next) {
+		if (vxlan == this)
+			continue;
 
-			if (!netif_running(vxlan->dev))
-				continue;
+		if (!netif_running(vxlan->dev))
+			continue;
 
-			if (vxlan->default_dst.remote_ip == this->default_dst.remote_ip)
-				return true;
-		}
+		if (vxlan->default_dst.remote_ip == this->default_dst.remote_ip)
+			return true;
+	}
 
 	return false;
 }
@@ -615,7 +652,7 @@ static int vxlan_join_group(struct net_device *dev)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
-	struct sock *sk = vn->sock->sk;
+	struct sock *sk = vxlan->vn_sock->sock->sk;
 	struct ip_mreqn mreq = {
 		.imr_multiaddr.s_addr	= vxlan->default_dst.remote_ip,
 		.imr_ifindex		= vxlan->default_dst.remote_ifindex,
@@ -643,7 +680,7 @@ static int vxlan_leave_group(struct net_device *dev)
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
 	int err = 0;
-	struct sock *sk = vn->sock->sk;
+	struct sock *sk = vxlan->vn_sock->sock->sk;
 	struct ip_mreqn mreq = {
 		.imr_multiaddr.s_addr	= vxlan->default_dst.remote_ip,
 		.imr_ifindex		= vxlan->default_dst.remote_ifindex,
@@ -670,6 +707,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 	struct vxlanhdr *vxh;
 	struct vxlan_dev *vxlan;
 	struct pcpu_tstats *stats;
+	__be16 port;
 	__u32 vni;
 	int err;
 
@@ -693,9 +731,11 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 
 	/* Is this VNI defined? */
 	vni = ntohl(vxh->vx_vni) >> 8;
-	vxlan = vxlan_find_vni(sock_net(sk), vni);
+	port = inet_sk(sk)->inet_sport;
+	vxlan = vxlan_find_vni(sock_net(sk), vni, port);
 	if (!vxlan) {
-		netdev_dbg(skb->dev, "unknown vni %d\n", vni);
+		netdev_dbg(skb->dev, "unknown vni %d port %u\n",
+			   vni, ntohs(port));
 		goto drop;
 	}
 
@@ -875,7 +915,7 @@ static bool route_shortcircuit(struct net_device *dev, struct sk_buff *skb)
 	return false;
 }
 
-static void vxlan_sock_free(struct sk_buff *skb)
+static void vxlan_sock_put(struct sk_buff *skb)
 {
 	sock_put(skb->sk);
 }
@@ -883,13 +923,13 @@ static void vxlan_sock_free(struct sk_buff *skb)
 /* On transmit, associate with the tunnel socket */
 static void vxlan_set_owner(struct net_device *dev, struct sk_buff *skb)
 {
-	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
-	struct sock *sk = vn->sock->sk;
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct sock *sk = vxlan->vn_sock->sock->sk;
 
 	skb_orphan(skb);
 	sock_hold(sk);
 	skb->sk = sk;
-	skb->destructor = vxlan_sock_free;
+	skb->destructor = vxlan_sock_put;
 }
 
 /* Compute source port for outgoing packet
@@ -1031,7 +1071,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 		struct vxlan_dev *dst_vxlan;
 
 		ip_rt_put(rt);
-		dst_vxlan = vxlan_find_vni(dev_net(dev), vni);
+		dst_vxlan = vxlan_find_vni(dev_net(dev), vni, dst_port);
 		if (!dst_vxlan)
 			goto tx_error;
 		vxlan_encap_bypass(skb, vxlan, dst_vxlan);
@@ -1306,6 +1346,7 @@ static void vxlan_setup(struct net_device *dev)
 	dev->priv_flags	&= ~IFF_XMIT_DST_RELEASE;
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 
+	INIT_LIST_HEAD(&vxlan->next);
 	spin_lock_init(&vxlan->hash_lock);
 
 	init_timer_deferrable(&vxlan->age_timer);
@@ -1390,11 +1431,78 @@ static const struct ethtool_ops vxlan_ethtool_ops = {
 	.get_link	= ethtool_op_get_link,
 };
 
+static void vxlan_del_work(struct work_struct *work)
+{
+	struct vxlan_sock *vs = container_of(work, struct vxlan_sock, del_work);
+
+	sk_release_kernel(vs->sock->sk);
+	kfree_rcu(vs, rcu);
+}
+
+/* Create new listen socket if needed */
+static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port)
+{
+	struct vxlan_sock *vs;
+	struct sock *sk;
+	struct sockaddr_in vxlan_addr = {
+		.sin_family = AF_INET,
+		.sin_addr.s_addr = htonl(INADDR_ANY),
+	};
+	int rc;
+	unsigned h;
+
+	vs = kmalloc(sizeof(*vs), GFP_KERNEL);
+	if (!vs)
+		return ERR_PTR(-ENOMEM);
+
+	for (h = 0; h < VNI_HASH_SIZE; ++h)
+		INIT_HLIST_HEAD(&vs->vni_list[h]);
+
+	INIT_WORK(&vs->del_work, vxlan_del_work);
+
+	/* Create UDP socket for encapsulation receive. */
+	rc = sock_create_kern(AF_INET, SOCK_DGRAM, IPPROTO_UDP, &vs->sock);
+	if (rc < 0) {
+		pr_debug("UDP socket create failed\n");
+		kfree(vs);
+		return ERR_PTR(rc);
+	}
+
+	/* Put in proper namespace */
+	sk = vs->sock->sk;
+	sk_change_net(sk, net);
+
+	vxlan_addr.sin_port = port;
+
+	rc = kernel_bind(vs->sock, (struct sockaddr *) &vxlan_addr,
+			 sizeof(vxlan_addr));
+	if (rc < 0) {
+		pr_debug("bind for UDP socket %pI4:%u (%d)\n",
+			 &vxlan_addr.sin_addr, ntohs(vxlan_addr.sin_port), rc);
+		sk_release_kernel(sk);
+		kfree(vs);
+		return ERR_PTR(rc);
+	}
+
+	/* Disable multicast loopback */
+	inet_sk(sk)->mc_loop = 0;
+
+	/* Mark socket as an encapsulation socket. */
+	udp_sk(sk)->encap_type = 1;
+	udp_sk(sk)->encap_rcv = vxlan_udp_encap_recv;
+	udp_encap_enable();
+
+	vs->refcnt = 1;
+	return vs;
+}
+
 static int vxlan_newlink(struct net *net, struct net_device *dev,
 			 struct nlattr *tb[], struct nlattr *data[])
 {
+	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_rdst *dst = &vxlan->default_dst;
+	struct vxlan_sock *vs;
 	__u32 vni;
 	int err;
 
@@ -1402,10 +1510,6 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 		return -EINVAL;
 
 	vni = nla_get_u32(data[IFLA_VXLAN_ID]);
-	if (vxlan_find_vni(net, vni)) {
-		pr_info("duplicate VNI %u\n", vni);
-		return -EEXIST;
-	}
 	dst->remote_vni = vni;
 
 	if (data[IFLA_VXLAN_GROUP])
@@ -1471,22 +1575,58 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 	if (data[IFLA_VXLAN_PORT])
 		vxlan->dst_port = nla_get_be16(data[IFLA_VXLAN_PORT]);
 
+	if (vxlan_find_vni(net, vni, vxlan->dst_port)) {
+		pr_info("duplicate VNI %u\n", vni);
+		return -EEXIST;
+	}
+
+	vs = vxlan_find_port(net, vxlan->dst_port);
+	if (vs)
+		++vs->refcnt;
+	else {
+		/* Drop lock because socket create acquires RTNL lock */
+		rtnl_unlock();
+		vs = vxlan_socket_create(net, vxlan->dst_port);
+		rtnl_lock();
+		if (IS_ERR(vs))
+			return PTR_ERR(vs);
+
+		hlist_add_head_rcu(&vs->hlist, vs_head(net, vxlan->dst_port));
+	}
+	vxlan->vn_sock = vs;
+
 	SET_ETHTOOL_OPS(dev, &vxlan_ethtool_ops);
 
 	err = register_netdevice(dev);
-	if (!err)
-		hlist_add_head_rcu(&vxlan->hlist, vni_head(net, dst->remote_vni));
+	if (err) {
+		if (--vs->refcnt == 0) {
+			rtnl_unlock();
+			sk_release_kernel(vs->sock->sk);
+			kfree(vs);
+			rtnl_lock();
+		}
+		return err;
+	}
 
-	return err;
+	list_add(&vxlan->next, &vn->vxlan_list);
+	hlist_add_head_rcu(&vxlan->hlist, vni_head(vs, vni));
+
+	return 0;
 }
 
 static void vxlan_dellink(struct net_device *dev, struct list_head *head)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_sock *vs = vxlan->vn_sock;
 
 	hlist_del_rcu(&vxlan->hlist);
-
+	list_del(&vxlan->next);
 	unregister_netdevice_queue(dev, head);
+
+	if (--vs->refcnt == 0) {
+		hlist_del_rcu(&vs->hlist);
+		schedule_work(&vs->del_work);
+	}
 }
 
 static size_t vxlan_get_size(const struct net_device *dev)
@@ -1572,46 +1712,12 @@ static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
 static __net_init int vxlan_init_net(struct net *net)
 {
 	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
-	struct sock *sk;
-	struct sockaddr_in vxlan_addr = {
-		.sin_family = AF_INET,
-		.sin_addr.s_addr = htonl(INADDR_ANY),
-	};
-	int rc;
 	unsigned h;
 
-	/* Create UDP socket for encapsulation receive. */
-	rc = sock_create_kern(AF_INET, SOCK_DGRAM, IPPROTO_UDP, &vn->sock);
-	if (rc < 0) {
-		pr_debug("UDP socket create failed\n");
-		return rc;
-	}
-	/* Put in proper namespace */
-	sk = vn->sock->sk;
-	sk_change_net(sk, net);
-
-	vxlan_addr.sin_port = htons(vxlan_port);
-
-	rc = kernel_bind(vn->sock, (struct sockaddr *) &vxlan_addr,
-			 sizeof(vxlan_addr));
-	if (rc < 0) {
-		pr_debug("bind for UDP socket %pI4:%u (%d)\n",
-			 &vxlan_addr.sin_addr, ntohs(vxlan_addr.sin_port), rc);
-		sk_release_kernel(sk);
-		vn->sock = NULL;
-		return rc;
-	}
-
-	/* Disable multicast loopback */
-	inet_sk(sk)->mc_loop = 0;
+	INIT_LIST_HEAD(&vn->vxlan_list);
 
-	/* Mark socket as an encapsulation socket. */
-	udp_sk(sk)->encap_type = 1;
-	udp_sk(sk)->encap_rcv = vxlan_udp_encap_recv;
-	udp_encap_enable();
-
-	for (h = 0; h < VNI_HASH_SIZE; ++h)
-		INIT_HLIST_HEAD(&vn->vni_list[h]);
+	for (h = 0; h < PORT_HASH_SIZE; ++h)
+		INIT_HLIST_HEAD(&vn->sock_list[h]);
 
 	return 0;
 }
@@ -1620,18 +1726,11 @@ static __net_exit void vxlan_exit_net(struct net *net)
 {
 	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
 	struct vxlan_dev *vxlan;
-	unsigned h;
 
 	rtnl_lock();
-	for (h = 0; h < VNI_HASH_SIZE; ++h)
-		hlist_for_each_entry(vxlan, &vn->vni_list[h], hlist)
-			dev_close(vxlan->dev);
+	list_for_each_entry(vxlan, &vn->vxlan_list, next)
+		dev_close(vxlan->dev);
 	rtnl_unlock();
-
-	if (vn->sock) {
-		sk_release_kernel(vn->sock->sk);
-		vn->sock = NULL;
-	}
 }
 
 static struct pernet_operations vxlan_net_ops = {
-- 
cgit v0.10.2


From 18cf1f1270e7f01be5217203c9f46c5d88a54839 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 16 May 2013 17:48:07 +0000
Subject: net/usb: r8152: Remove redundant version.h header inclusion

version.h header inclusion is not necessary as detected by
checkversion.pl.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 14e5198..8e53e41 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -11,7 +11,6 @@
 #include <linux/signal.h>
 #include <linux/slab.h>
 #include <linux/module.h>
-#include <linux/version.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/mii.h>
-- 
cgit v0.10.2


From b4236daa410e4e778a938ac1151bf94d94c55efc Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 16 May 2013 17:48:08 +0000
Subject: net/usb: r8152: Use module_usb_driver()

module_usb_driver() eliminates boilerplate and simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 8e53e41..d02bac8 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1748,18 +1748,7 @@ static struct usb_driver rtl8152_driver = {
 	.resume =	rtl8152_resume
 };
 
-static int __init usb_rtl8152_init(void)
-{
-	return usb_register(&rtl8152_driver);
-}
-
-static void __exit usb_rtl8152_exit(void)
-{
-	usb_deregister(&rtl8152_driver);
-}
-
-module_init(usb_rtl8152_init);
-module_exit(usb_rtl8152_exit);
+module_usb_driver(rtl8152_driver);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-- 
cgit v0.10.2


From 650c8496702f2910c506ccf66685893302e1796e Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 16 May 2013 19:45:30 +0000
Subject: x86: bpf_jit_comp: can call module_free() from any context

It looks like we can call module_free()/vfree() from softirq context,
so no longer need a wrapper and a work_struct.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index f66b540..c0212db 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -717,9 +717,7 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
 			break;
 		}
 		if (proglen == oldproglen) {
-			image = module_alloc(max_t(unsigned int,
-						   proglen,
-						   sizeof(struct work_struct)));
+			image = module_alloc(proglen);
 			if (!image)
 				goto out;
 		}
@@ -738,20 +736,8 @@ out:
 	return;
 }
 
-static void jit_free_defer(struct work_struct *arg)
-{
-	module_free(NULL, arg);
-}
-
-/* run from softirq, we must use a work_struct to call
- * module_free() from process context
- */
 void bpf_jit_free(struct sk_filter *fp)
 {
-	if (fp->bpf_func != sk_run_filter) {
-		struct work_struct *work = (struct work_struct *)fp->bpf_func;
-
-		INIT_WORK(work, jit_free_defer);
-		schedule_work(work);
-	}
+	if (fp->bpf_func != sk_run_filter)
+		module_free(NULL, fp->bpf_func);
 }
-- 
cgit v0.10.2


From f1db320ec5788d5fcc05c0285bd0980319185497 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Thu, 16 May 2013 23:24:28 +0000
Subject: xen-netback: remove dead code

The array mmap_pages is never touched in the initialization function. This is
remnant of mapping mechanism, which does not exist upstream. In current
upstream code this array only tracks usage of pages inside netback. Those
pages are allocated when contructing a SKB and passed directly to network
subsystem.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 37984e6..295a9c2 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1939,10 +1939,6 @@ static int __init netback_init(void)
 failed_init:
 	while (--group >= 0) {
 		struct xen_netbk *netbk = &xen_netbk[group];
-		for (i = 0; i < MAX_PENDING_REQS; i++) {
-			if (netbk->mmap_pages[i])
-				__free_page(netbk->mmap_pages[i]);
-		}
 		del_timer(&netbk->net_timer);
 		kthread_stop(netbk->task);
 	}
-- 
cgit v0.10.2


From b103f358d9f6f58658f1a6dc08912ab921dd86f1 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Thu, 16 May 2013 23:26:11 +0000
Subject: xen-netback: enable user to unload netback module
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch enables user to unload netback module, which is useful when user
wants to upgrade to a newer netback module without rebooting the host.

Netfront cannot handle netback removal event. As we cannot fix all possible
frontends we add module get / put along with vif get / put to avoid
mis-unloading of netback. To unload netback module, user needs to shutdown all
VMs or migrate them to another host or unplug all vifs before hand.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>¬
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index 9d7f172..6102a6c 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -120,6 +120,7 @@ void xenvif_get(struct xenvif *vif);
 void xenvif_put(struct xenvif *vif);
 
 int xenvif_xenbus_init(void);
+void xenvif_xenbus_fini(void);
 
 int xenvif_schedulable(struct xenvif *vif);
 
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index d984141..82202c2 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -316,6 +316,8 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
 	if (vif->irq)
 		return 0;
 
+	__module_get(THIS_MODULE);
+
 	err = xen_netbk_map_frontend_rings(vif, tx_ring_ref, rx_ring_ref);
 	if (err < 0)
 		goto err;
@@ -343,6 +345,7 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
 err_unmap:
 	xen_netbk_unmap_frontend_rings(vif);
 err:
+	module_put(THIS_MODULE);
 	return err;
 }
 
@@ -360,18 +363,32 @@ void xenvif_carrier_off(struct xenvif *vif)
 
 void xenvif_disconnect(struct xenvif *vif)
 {
+	/* Disconnect funtion might get called by generic framework
+	 * even before vif connects, so we need to check if we really
+	 * need to do a module_put.
+	 */
+	int need_module_put = 0;
+
 	if (netif_carrier_ok(vif->dev))
 		xenvif_carrier_off(vif);
 
 	atomic_dec(&vif->refcnt);
 	wait_event(vif->waiting_to_free, atomic_read(&vif->refcnt) == 0);
 
-	if (vif->irq)
+	if (vif->irq) {
 		unbind_from_irqhandler(vif->irq, vif);
+		/* vif->irq is valid, we had a module_get in
+		 * xenvif_connect.
+		 */
+		need_module_put = 1;
+	}
 
 	unregister_netdev(vif->dev);
 
 	xen_netbk_unmap_frontend_rings(vif);
 
 	free_netdev(vif->dev);
+
+	if (need_module_put)
+		module_put(THIS_MODULE);
 }
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 295a9c2..2d9477f 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1949,5 +1949,25 @@ failed_init:
 
 module_init(netback_init);
 
+static void __exit netback_fini(void)
+{
+	int i, j;
+
+	xenvif_xenbus_fini();
+
+	for (i = 0; i < xen_netbk_group_nr; i++) {
+		struct xen_netbk *netbk = &xen_netbk[i];
+		del_timer_sync(&netbk->net_timer);
+		kthread_stop(netbk->task);
+		for (j = 0; j < MAX_PENDING_REQS; j++) {
+			if (netbk->mmap_pages[i])
+				__free_page(netbk->mmap_pages[i]);
+		}
+	}
+
+	vfree(xen_netbk);
+}
+module_exit(netback_fini);
+
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_ALIAS("xen-backend:vif");
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 410018c..d230c14 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -485,3 +485,8 @@ int xenvif_xenbus_init(void)
 {
 	return xenbus_register_backend(&netback_driver);
 }
+
+void xenvif_xenbus_fini(void)
+{
+	return xenbus_unregister_driver(&netback_driver);
+}
-- 
cgit v0.10.2


From 57b354e66b67c4c72468a26d4313d1217ef32e17 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Thu, 16 May 2013 23:36:32 +0000
Subject: dev: remove duplicate 'skb->dev = dev' in dev_forward_skb()

This was added by commit 59b9997baba5 (Revert "net: maintain namespace
isolation between vlan and real device").
In fact, before the initial commit - the one that is reverted -, this
statement was not present.
'skb->dev = dev' is already done in eth_type_trans(), which is call just
after.

Spotted-by: Alain Ritoux <alain.ritoux@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/dev.c b/net/core/dev.c
index fc1e289..18e9730 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1629,7 +1629,6 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 		return NET_RX_DROP;
 	}
 	skb->skb_iif = 0;
-	skb->dev = dev;
 	skb_dst_drop(skb);
 	skb->tstamp.tv64 = 0;
 	skb->pkt_type = PACKET_HOST;
-- 
cgit v0.10.2


From 5199dfe531db19f3ac76542753849877e9854441 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 17 May 2013 12:12:34 +0000
Subject: sparc: bpf_jit_comp: can call module_free() from any context

module_free()/vfree() takes care of details, we no longer need a wrapper
and a work_struct.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c
index d36a85e..9c7be59 100644
--- a/arch/sparc/net/bpf_jit_comp.c
+++ b/arch/sparc/net/bpf_jit_comp.c
@@ -785,9 +785,7 @@ cond_branch:			f_offset = addrs[i + filter[i].jf];
 			break;
 		}
 		if (proglen == oldproglen) {
-			image = module_alloc(max_t(unsigned int,
-						   proglen,
-						   sizeof(struct work_struct)));
+			image = module_alloc(proglen);
 			if (!image)
 				goto out;
 		}
@@ -806,20 +804,8 @@ out:
 	return;
 }
 
-static void jit_free_defer(struct work_struct *arg)
-{
-	module_free(NULL, arg);
-}
-
-/* run from softirq, we must use a work_struct to call
- * module_free() from process context
- */
 void bpf_jit_free(struct sk_filter *fp)
 {
-	if (fp->bpf_func != sk_run_filter) {
-		struct work_struct *work = (struct work_struct *)fp->bpf_func;
-
-		INIT_WORK(work, jit_free_defer);
-		schedule_work(work);
-	}
+	if (fp->bpf_func != sk_run_filter)
+		module_free(NULL, fp->bpf_func);
 }
-- 
cgit v0.10.2


From caeaba79009c2ee858c3b2bf8caf922cd719fead Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Thu, 16 May 2013 22:32:00 +0000
Subject: ipv6: add support of peer address

This patch adds the support of peer address for IPv6. For example, it is
possible to specify the remote end of a 6inY tunnel.
This was already possible in IPv4:
 ip addr add ip1 peer ip2 dev dev1

The peer address is specified with IFA_ADDRESS and the local address with
IFA_LOCAL (like explained in include/uapi/linux/if_addr.h).
Note that the API is not changed, because before this patch, it was not
possible to specify two different addresses in IFA_LOCAL and IFA_REMOTE.
There is a small change for the dump: if the peer is different from ::,
IFA_ADDRESS will contain the peer address instead of the local address.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 100fb8c..0727d0e 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -74,6 +74,7 @@ struct inet6_ifaddr {
 	bool			tokenized;
 
 	struct rcu_head		rcu;
+	struct in6_addr		peer_addr;
 };
 
 struct ip6_sf_socklist {
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index d1ab6ab..d684d23 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2402,6 +2402,7 @@ err_exit:
  *	Manual configuration of address on an interface
  */
 static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *pfx,
+			  const struct in6_addr *peer_pfx,
 			  unsigned int plen, __u8 ifa_flags, __u32 prefered_lft,
 			  __u32 valid_lft)
 {
@@ -2457,6 +2458,8 @@ static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *p
 		ifp->valid_lft = valid_lft;
 		ifp->prefered_lft = prefered_lft;
 		ifp->tstamp = jiffies;
+		if (peer_pfx)
+			ifp->peer_addr = *peer_pfx;
 		spin_unlock_bh(&ifp->lock);
 
 		addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev,
@@ -2526,7 +2529,7 @@ int addrconf_add_ifaddr(struct net *net, void __user *arg)
 		return -EFAULT;
 
 	rtnl_lock();
-	err = inet6_addr_add(net, ireq.ifr6_ifindex, &ireq.ifr6_addr,
+	err = inet6_addr_add(net, ireq.ifr6_ifindex, &ireq.ifr6_addr, NULL,
 			     ireq.ifr6_prefixlen, IFA_F_PERMANENT,
 			     INFINITY_LIFE_TIME, INFINITY_LIFE_TIME);
 	rtnl_unlock();
@@ -3610,18 +3613,20 @@ restart:
 	rcu_read_unlock_bh();
 }
 
-static struct in6_addr *extract_addr(struct nlattr *addr, struct nlattr *local)
+static struct in6_addr *extract_addr(struct nlattr *addr, struct nlattr *local,
+				     struct in6_addr **peer_pfx)
 {
 	struct in6_addr *pfx = NULL;
 
+	*peer_pfx = NULL;
+
 	if (addr)
 		pfx = nla_data(addr);
 
 	if (local) {
 		if (pfx && nla_memcmp(local, pfx, sizeof(*pfx)))
-			pfx = NULL;
-		else
-			pfx = nla_data(local);
+			*peer_pfx = pfx;
+		pfx = nla_data(local);
 	}
 
 	return pfx;
@@ -3639,7 +3644,7 @@ inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh)
 	struct net *net = sock_net(skb->sk);
 	struct ifaddrmsg *ifm;
 	struct nlattr *tb[IFA_MAX+1];
-	struct in6_addr *pfx;
+	struct in6_addr *pfx, *peer_pfx;
 	int err;
 
 	err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy);
@@ -3647,7 +3652,7 @@ inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh)
 		return err;
 
 	ifm = nlmsg_data(nlh);
-	pfx = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL]);
+	pfx = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL], &peer_pfx);
 	if (pfx == NULL)
 		return -EINVAL;
 
@@ -3705,7 +3710,7 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh)
 	struct net *net = sock_net(skb->sk);
 	struct ifaddrmsg *ifm;
 	struct nlattr *tb[IFA_MAX+1];
-	struct in6_addr *pfx;
+	struct in6_addr *pfx, *peer_pfx;
 	struct inet6_ifaddr *ifa;
 	struct net_device *dev;
 	u32 valid_lft = INFINITY_LIFE_TIME, preferred_lft = INFINITY_LIFE_TIME;
@@ -3717,7 +3722,7 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh)
 		return err;
 
 	ifm = nlmsg_data(nlh);
-	pfx = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL]);
+	pfx = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL], &peer_pfx);
 	if (pfx == NULL)
 		return -EINVAL;
 
@@ -3745,7 +3750,7 @@ inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh)
 		 * It would be best to check for !NLM_F_CREATE here but
 		 * userspace alreay relies on not having to provide this.
 		 */
-		return inet6_addr_add(net, ifm->ifa_index, pfx,
+		return inet6_addr_add(net, ifm->ifa_index, pfx, peer_pfx,
 				      ifm->ifa_prefixlen, ifa_flags,
 				      preferred_lft, valid_lft);
 	}
@@ -3802,6 +3807,7 @@ static inline int rt_scope(int ifa_scope)
 static inline int inet6_ifaddr_msgsize(void)
 {
 	return NLMSG_ALIGN(sizeof(struct ifaddrmsg))
+	       + nla_total_size(16) /* IFA_LOCAL */
 	       + nla_total_size(16) /* IFA_ADDRESS */
 	       + nla_total_size(sizeof(struct ifa_cacheinfo));
 }
@@ -3840,13 +3846,22 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
 		valid = INFINITY_LIFE_TIME;
 	}
 
-	if (nla_put(skb, IFA_ADDRESS, 16, &ifa->addr) < 0 ||
-	    put_cacheinfo(skb, ifa->cstamp, ifa->tstamp, preferred, valid) < 0) {
-		nlmsg_cancel(skb, nlh);
-		return -EMSGSIZE;
-	}
+	if (ipv6_addr_type(&ifa->peer_addr) != IPV6_ADDR_ANY) {
+		if (nla_put(skb, IFA_LOCAL, 16, &ifa->addr) < 0 ||
+		    nla_put(skb, IFA_ADDRESS, 16, &ifa->peer_addr) < 0)
+			goto error;
+	} else
+		if (nla_put(skb, IFA_ADDRESS, 16, &ifa->addr) < 0)
+			goto error;
+
+	if (put_cacheinfo(skb, ifa->cstamp, ifa->tstamp, preferred, valid) < 0)
+		goto error;
 
 	return nlmsg_end(skb, nlh);
+
+error:
+	nlmsg_cancel(skb, nlh);
+	return -EMSGSIZE;
 }
 
 static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca,
@@ -4046,7 +4061,7 @@ static int inet6_rtm_getaddr(struct sk_buff *in_skb, struct nlmsghdr *nlh)
 	struct net *net = sock_net(in_skb->sk);
 	struct ifaddrmsg *ifm;
 	struct nlattr *tb[IFA_MAX+1];
-	struct in6_addr *addr = NULL;
+	struct in6_addr *addr = NULL, *peer;
 	struct net_device *dev = NULL;
 	struct inet6_ifaddr *ifa;
 	struct sk_buff *skb;
@@ -4056,7 +4071,7 @@ static int inet6_rtm_getaddr(struct sk_buff *in_skb, struct nlmsghdr *nlh)
 	if (err < 0)
 		goto errout;
 
-	addr = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL]);
+	addr = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL], &peer);
 	if (addr == NULL) {
 		err = -EINVAL;
 		goto errout;
@@ -4564,11 +4579,26 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 			ip6_ins_rt(ifp->rt);
 		if (ifp->idev->cnf.forwarding)
 			addrconf_join_anycast(ifp);
+		if (ipv6_addr_type(&ifp->peer_addr) != IPV6_ADDR_ANY)
+			addrconf_prefix_route(&ifp->peer_addr, 128,
+					      ifp->idev->dev, 0, 0);
 		break;
 	case RTM_DELADDR:
 		if (ifp->idev->cnf.forwarding)
 			addrconf_leave_anycast(ifp);
 		addrconf_leave_solict(ifp->idev, &ifp->addr);
+		if (ipv6_addr_type(&ifp->peer_addr) != IPV6_ADDR_ANY) {
+			struct rt6_info *rt;
+			struct net_device *dev = ifp->idev->dev;
+
+			rt = rt6_lookup(dev_net(dev), &ifp->peer_addr, NULL,
+					dev->ifindex, 1);
+			if (rt) {
+				dst_hold(&rt->dst);
+				if (ip6_del_rt(rt))
+					dst_free(&rt->dst);
+			}
+		}
 		dst_hold(&ifp->rt->dst);
 
 		if (ip6_del_rt(ifp->rt))
-- 
cgit v0.10.2


From 3cc7587b30032b7c4dd9610a55a77519e84da7db Mon Sep 17 00:00:00 2001
From: Rami Rosen <ramirose@gmail.com>
Date: Fri, 17 May 2013 09:10:34 +0000
Subject: Documentation/sysctl/net.txt: fix (attribute removal).

This patch removes mentioning the sysfsf net_device weight attribute
(class/net/<device>/weight)
in Documentation/sysctl/net.txt, since the net sysfs weight attribute
was removed by the following patch:

[NET]: Make NAPI polling independent of struct net_device objects
 bea3348eef27e6044b6161fd04c3152215f96411

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index 98335b7..c1f8640 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -93,8 +93,7 @@ netdev_budget
 
 Maximum number of packets taken from all interfaces in one polling cycle (NAPI
 poll). In one polling cycle interfaces which are registered to polling are
-probed in a round-robin manner. The limit of packets in one such probe can be
-set per-device via sysfs class/net/<device>/weight .
+probed in a round-robin manner.
 
 netdev_max_backlog
 ------------------
-- 
cgit v0.10.2


From 3e59cb0ddfd2c59991f38e89352ad8a3c71b2374 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Fri, 17 May 2013 13:45:05 +0000
Subject: tcp: remove bad timeout logic in fast recovery

tcp_timeout_skb() was intended to trigger fast recovery on timeout,
unfortunately in reality it often causes spurious retransmission
storms during fast recovery. The particular sign is a fast retransmit
over the highest sacked sequence (SND.FACK).

Currently the RTO timer re-arming (as in RFC6298) offers a nice cushion
to avoid spurious timeout: when SND.UNA advances the sender re-arms
RTO and extends the timeout by icsk_rto. The sender does not offset
the time elapsed since the packet at SND.UNA was sent.

But if the next (DUP)ACK arrives later than ~RTTVAR and triggers
tcp_fastretrans_alert(), then tcp_timeout_skb() will mark any packet
sent before the icsk_rto interval lost, including one that's above the
highest sacked sequence. Most likely a large part of scorebard will be
marked.

If most packets are not lost then the subsequent DUPACKs with new SACK
blocks will cause the sender to continue to retransmit packets beyond
SND.FACK spuriously. Even if only one packet is lost the sender may
falsely retransmit almost the entire window.

The situation becomes common in the world of bufferbloat: the RTT
continues to grow as the queue builds up but RTTVAR remains small and
close to the minimum 200ms. If a data packet is lost and the DUPACK
triggered by the next data packet is slightly delayed, then a spurious
retransmission storm forms.

As the original comment on tcp_timeout_skb() suggests: the usefulness
of this feature is questionable. It also wastes cycles walking the
sack scoreboard and is actually harmful because of false recovery.

It's time to remove this.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 5adbc33..472120b 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -246,7 +246,6 @@ struct tcp_sock {
 
 	/* from STCP, retrans queue hinting */
 	struct sk_buff* lost_skb_hint;
-	struct sk_buff *scoreboard_skb_hint;
 	struct sk_buff *retransmit_skb_hint;
 
 	struct sk_buff_head	out_of_order_queue; /* Out of order segments go here */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5bba80f..e1c3723 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1193,7 +1193,6 @@ static inline void tcp_mib_init(struct net *net)
 static inline void tcp_clear_retrans_hints_partial(struct tcp_sock *tp)
 {
 	tp->lost_skb_hint = NULL;
-	tp->scoreboard_skb_hint = NULL;
 }
 
 static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index b358e8c..d7d3694 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1255,8 +1255,6 @@ static bool tcp_shifted_skb(struct sock *sk, struct sk_buff *skb,
 
 	if (skb == tp->retransmit_skb_hint)
 		tp->retransmit_skb_hint = prev;
-	if (skb == tp->scoreboard_skb_hint)
-		tp->scoreboard_skb_hint = prev;
 	if (skb == tp->lost_skb_hint) {
 		tp->lost_skb_hint = prev;
 		tp->lost_cnt_hint -= tcp_skb_pcount(prev);
@@ -1964,20 +1962,6 @@ static bool tcp_pause_early_retransmit(struct sock *sk, int flag)
 	return true;
 }
 
-static inline int tcp_skb_timedout(const struct sock *sk,
-				   const struct sk_buff *skb)
-{
-	return tcp_time_stamp - TCP_SKB_CB(skb)->when > inet_csk(sk)->icsk_rto;
-}
-
-static inline int tcp_head_timedout(const struct sock *sk)
-{
-	const struct tcp_sock *tp = tcp_sk(sk);
-
-	return tp->packets_out &&
-	       tcp_skb_timedout(sk, tcp_write_queue_head(sk));
-}
-
 /* Linux NewReno/SACK/FACK/ECN state machine.
  * --------------------------------------
  *
@@ -2084,12 +2068,6 @@ static bool tcp_time_to_recover(struct sock *sk, int flag)
 	if (tcp_dupack_heuristics(tp) > tp->reordering)
 		return true;
 
-	/* Trick#3 : when we use RFC2988 timer restart, fast
-	 * retransmit can be triggered by timeout of queue head.
-	 */
-	if (tcp_is_fack(tp) && tcp_head_timedout(sk))
-		return true;
-
 	/* Trick#4: It is still not OK... But will it be useful to delay
 	 * recovery more?
 	 */
@@ -2126,44 +2104,6 @@ static bool tcp_time_to_recover(struct sock *sk, int flag)
 	return false;
 }
 
-/* New heuristics: it is possible only after we switched to restart timer
- * each time when something is ACKed. Hence, we can detect timed out packets
- * during fast retransmit without falling to slow start.
- *
- * Usefulness of this as is very questionable, since we should know which of
- * the segments is the next to timeout which is relatively expensive to find
- * in general case unless we add some data structure just for that. The
- * current approach certainly won't find the right one too often and when it
- * finally does find _something_ it usually marks large part of the window
- * right away (because a retransmission with a larger timestamp blocks the
- * loop from advancing). -ij
- */
-static void tcp_timeout_skbs(struct sock *sk)
-{
-	struct tcp_sock *tp = tcp_sk(sk);
-	struct sk_buff *skb;
-
-	if (!tcp_is_fack(tp) || !tcp_head_timedout(sk))
-		return;
-
-	skb = tp->scoreboard_skb_hint;
-	if (tp->scoreboard_skb_hint == NULL)
-		skb = tcp_write_queue_head(sk);
-
-	tcp_for_write_queue_from(skb, sk) {
-		if (skb == tcp_send_head(sk))
-			break;
-		if (!tcp_skb_timedout(sk, skb))
-			break;
-
-		tcp_skb_mark_lost(tp, skb);
-	}
-
-	tp->scoreboard_skb_hint = skb;
-
-	tcp_verify_left_out(tp);
-}
-
 /* Detect loss in event "A" above by marking head of queue up as lost.
  * For FACK or non-SACK(Reno) senders, the first "packets" number of segments
  * are considered lost. For RFC3517 SACK, a segment is considered lost if it
@@ -2249,8 +2189,6 @@ static void tcp_update_scoreboard(struct sock *sk, int fast_rexmit)
 		else if (fast_rexmit)
 			tcp_mark_head_lost(sk, 1, 1);
 	}
-
-	tcp_timeout_skbs(sk);
 }
 
 /* CWND moderation, preventing bursts due to too big ACKs
@@ -2842,7 +2780,7 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked,
 		fast_rexmit = 1;
 	}
 
-	if (do_lost || (tcp_is_fack(tp) && tcp_head_timedout(sk)))
+	if (do_lost)
 		tcp_update_scoreboard(sk, fast_rexmit);
 	tcp_cwnd_reduction(sk, newly_acked_sacked, fast_rexmit);
 	tcp_xmit_retransmit_queue(sk);
@@ -3075,7 +3013,6 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
 
 		tcp_unlink_write_queue(skb, sk);
 		sk_wmem_free_skb(sk, skb);
-		tp->scoreboard_skb_hint = NULL;
 		if (skb == tp->retransmit_skb_hint)
 			tp->retransmit_skb_hint = NULL;
 		if (skb == tp->lost_skb_hint)
-- 
cgit v0.10.2


From 314beb9bcabfd6b4542ccbced2402af2c6f6142a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 17 May 2013 16:37:03 +0000
Subject: x86: bpf_jit_comp: secure bpf jit against spraying attacks

hpa bringed into my attention some security related issues
with BPF JIT on x86.

This patch makes sure the bpf generated code is marked read only,
as other kernel text sections.

It also splits the unused space (we vmalloc() and only use a fraction of
the page) in two parts, so that the generated bpf code not starts at a
known offset in the page, but a pseudo random one.

Refs:
http://mainisusuallyafunction.blogspot.com/2012/11/attacking-hardened-linux-systems-with.html

Reported-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index c0212db..79c216a 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -12,6 +12,7 @@
 #include <linux/netdevice.h>
 #include <linux/filter.h>
 #include <linux/if_vlan.h>
+#include <linux/random.h>
 
 /*
  * Conventions :
@@ -144,6 +145,39 @@ static int pkt_type_offset(void)
 	return -1;
 }
 
+struct bpf_binary_header {
+	unsigned int	pages;
+	/* Note : for security reasons, bpf code will follow a randomly
+	 * sized amount of int3 instructions
+	 */
+	u8		image[];
+};
+
+static struct bpf_binary_header *bpf_alloc_binary(unsigned int proglen,
+						  u8 **image_ptr)
+{
+	unsigned int sz, hole;
+	struct bpf_binary_header *header;
+
+	/* Most of BPF filters are really small,
+	 * but if some of them fill a page, allow at least
+	 * 128 extra bytes to insert a random section of int3
+	 */
+	sz = round_up(proglen + sizeof(*header) + 128, PAGE_SIZE);
+	header = module_alloc(sz);
+	if (!header)
+		return NULL;
+
+	memset(header, 0xcc, sz); /* fill whole space with int3 instructions */
+
+	header->pages = sz / PAGE_SIZE;
+	hole = sz - (proglen + sizeof(*header));
+
+	/* insert a random number of int3 instructions before BPF code */
+	*image_ptr = &header->image[prandom_u32() % hole];
+	return header;
+}
+
 void bpf_jit_compile(struct sk_filter *fp)
 {
 	u8 temp[64];
@@ -153,6 +187,7 @@ void bpf_jit_compile(struct sk_filter *fp)
 	int t_offset, f_offset;
 	u8 t_op, f_op, seen = 0, pass;
 	u8 *image = NULL;
+	struct bpf_binary_header *header = NULL;
 	u8 *func;
 	int pc_ret0 = -1; /* bpf index of first RET #0 instruction (if any) */
 	unsigned int cleanup_addr; /* epilogue code offset */
@@ -693,7 +728,7 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
 				if (unlikely(proglen + ilen > oldproglen)) {
 					pr_err("bpb_jit_compile fatal error\n");
 					kfree(addrs);
-					module_free(NULL, image);
+					module_free(NULL, header);
 					return;
 				}
 				memcpy(image + proglen, temp, ilen);
@@ -717,8 +752,8 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
 			break;
 		}
 		if (proglen == oldproglen) {
-			image = module_alloc(proglen);
-			if (!image)
+			header = bpf_alloc_binary(proglen, &image);
+			if (!header)
 				goto out;
 		}
 		oldproglen = proglen;
@@ -728,7 +763,8 @@ cond_branch:			f_offset = addrs[i + filter[i].jf] - addrs[i];
 		bpf_jit_dump(flen, proglen, pass, image);
 
 	if (image) {
-		bpf_flush_icache(image, image + proglen);
+		bpf_flush_icache(header, image + proglen);
+		set_memory_ro((unsigned long)header, header->pages);
 		fp->bpf_func = (void *)image;
 	}
 out:
@@ -738,6 +774,11 @@ out:
 
 void bpf_jit_free(struct sk_filter *fp)
 {
-	if (fp->bpf_func != sk_run_filter)
-		module_free(NULL, fp->bpf_func);
+	if (fp->bpf_func != sk_run_filter) {
+		unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK;
+		struct bpf_binary_header *header = (void *)addr;
+
+		set_memory_rw(addr, header->pages);
+		module_free(NULL, header);
+	}
 }
-- 
cgit v0.10.2


From 164954454a4b1000eb022415654001cceb9259a7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 17 May 2013 16:57:37 +0000
Subject: filter: do not output bpf image address for security reason

Do not leak starting address of BPF JIT code for non root users,
as it might help intruders to perform an attack.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/filter.h b/include/linux/filter.h
index c050dcc..56a6b7f 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -58,10 +58,10 @@ extern void bpf_jit_free(struct sk_filter *fp);
 static inline void bpf_jit_dump(unsigned int flen, unsigned int proglen,
 				u32 pass, void *image)
 {
-	pr_err("flen=%u proglen=%u pass=%u image=%p\n",
+	pr_err("flen=%u proglen=%u pass=%u image=%pK\n",
 	       flen, proglen, pass, image);
 	if (image)
-		print_hex_dump(KERN_ERR, "JIT code: ", DUMP_PREFIX_ADDRESS,
+		print_hex_dump(KERN_ERR, "JIT code: ", DUMP_PREFIX_OFFSET,
 			       16, 1, image, proglen, false);
 }
 #define SK_RUN_FILTER(FILTER, SKB) (*FILTER->bpf_func)(SKB, FILTER->insns)
-- 
cgit v0.10.2


From 9e2ecbeb250dee67f4bd06a18637c120b48a4865 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Sat, 18 May 2013 06:26:52 +0000
Subject: tg3: Add ethtool_eee struct and tg3_setup_eee()

Add an eee structure and update it with eee settings. This will be used
for set/get_eee operations. Add common function tg3_setup_eee() that
will be used in the subsequent patches.

Reviewed-by: Ben Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 728d42a..26804db 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -4249,6 +4249,16 @@ static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl)
 		/* Advertise 1000-BaseT EEE ability */
 		if (advertise & ADVERTISED_1000baseT_Full)
 			val |= MDIO_AN_EEE_ADV_1000T;
+
+		if (!tp->eee.eee_enabled) {
+			val = 0;
+			tp->eee.advertised = 0;
+		} else {
+			tp->eee.advertised = advertise &
+					     (ADVERTISED_100baseT_Full |
+					      ADVERTISED_1000baseT_Full);
+		}
+
 		err = tg3_phy_cl45_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
 		if (err)
 			val = 0;
@@ -4613,6 +4623,42 @@ static void tg3_clear_mac_status(struct tg3 *tp)
 	udelay(40);
 }
 
+static void tg3_setup_eee(struct tg3 *tp)
+{
+	u32 val;
+
+	val = TG3_CPMU_EEE_LNKIDL_PCIE_NL0 |
+	      TG3_CPMU_EEE_LNKIDL_UART_IDL;
+	if (tg3_chip_rev_id(tp) == CHIPREV_ID_57765_A0)
+		val |= TG3_CPMU_EEE_LNKIDL_APE_TX_MT;
+
+	tw32_f(TG3_CPMU_EEE_LNKIDL_CTRL, val);
+
+	tw32_f(TG3_CPMU_EEE_CTRL,
+	       TG3_CPMU_EEE_CTRL_EXIT_20_1_US);
+
+	val = TG3_CPMU_EEEMD_ERLY_L1_XIT_DET |
+	      (tp->eee.tx_lpi_enabled ? TG3_CPMU_EEEMD_LPI_IN_TX : 0) |
+	      TG3_CPMU_EEEMD_LPI_IN_RX |
+	      TG3_CPMU_EEEMD_EEE_ENABLE;
+
+	if (tg3_asic_rev(tp) != ASIC_REV_5717)
+		val |= TG3_CPMU_EEEMD_SND_IDX_DET_EN;
+
+	if (tg3_flag(tp, ENABLE_APE))
+		val |= TG3_CPMU_EEEMD_APE_TX_DET_EN;
+
+	tw32_f(TG3_CPMU_EEE_MODE, tp->eee.eee_enabled ? val : 0);
+
+	tw32_f(TG3_CPMU_EEE_DBTMR1,
+	       TG3_CPMU_DBTMR1_PCIEXIT_2047US |
+	       (tp->eee.tx_lpi_timer & 0xffff));
+
+	tw32_f(TG3_CPMU_EEE_DBTMR2,
+	       TG3_CPMU_DBTMR2_APE_TX_2047US |
+	       TG3_CPMU_DBTMR2_TXIDXEQ_2047US);
+}
+
 static int tg3_setup_copper_phy(struct tg3 *tp, bool force_reset)
 {
 	bool current_link_up;
@@ -9448,38 +9494,8 @@ static int tg3_reset_hw(struct tg3 *tp, bool reset_phy)
 		tg3_abort_hw(tp, 1);
 
 	/* Enable MAC control of LPI */
-	if (tp->phy_flags & TG3_PHYFLG_EEE_CAP) {
-		val = TG3_CPMU_EEE_LNKIDL_PCIE_NL0 |
-		      TG3_CPMU_EEE_LNKIDL_UART_IDL;
-		if (tg3_chip_rev_id(tp) == CHIPREV_ID_57765_A0)
-			val |= TG3_CPMU_EEE_LNKIDL_APE_TX_MT;
-
-		tw32_f(TG3_CPMU_EEE_LNKIDL_CTRL, val);
-
-		tw32_f(TG3_CPMU_EEE_CTRL,
-		       TG3_CPMU_EEE_CTRL_EXIT_20_1_US);
-
-		val = TG3_CPMU_EEEMD_ERLY_L1_XIT_DET |
-		      TG3_CPMU_EEEMD_LPI_IN_TX |
-		      TG3_CPMU_EEEMD_LPI_IN_RX |
-		      TG3_CPMU_EEEMD_EEE_ENABLE;
-
-		if (tg3_asic_rev(tp) != ASIC_REV_5717)
-			val |= TG3_CPMU_EEEMD_SND_IDX_DET_EN;
-
-		if (tg3_flag(tp, ENABLE_APE))
-			val |= TG3_CPMU_EEEMD_APE_TX_DET_EN;
-
-		tw32_f(TG3_CPMU_EEE_MODE, val);
-
-		tw32_f(TG3_CPMU_EEE_DBTMR1,
-		       TG3_CPMU_DBTMR1_PCIEXIT_2047US |
-		       TG3_CPMU_DBTMR1_LNKIDLE_2047US);
-
-		tw32_f(TG3_CPMU_EEE_DBTMR2,
-		       TG3_CPMU_DBTMR2_APE_TX_2047US |
-		       TG3_CPMU_DBTMR2_TXIDXEQ_2047US);
-	}
+	if (tp->phy_flags & TG3_PHYFLG_EEE_CAP)
+		tg3_setup_eee(tp);
 
 	if ((tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN) &&
 	    !(tp->phy_flags & TG3_PHYFLG_USER_CONFIGURED)) {
@@ -14946,9 +14962,18 @@ static int tg3_phy_probe(struct tg3 *tp)
 	     (tg3_asic_rev(tp) == ASIC_REV_5717 &&
 	      tg3_chip_rev_id(tp) != CHIPREV_ID_5717_A0) ||
 	     (tg3_asic_rev(tp) == ASIC_REV_57765 &&
-	      tg3_chip_rev_id(tp) != CHIPREV_ID_57765_A0)))
+	      tg3_chip_rev_id(tp) != CHIPREV_ID_57765_A0))) {
 		tp->phy_flags |= TG3_PHYFLG_EEE_CAP;
 
+		tp->eee.supported = SUPPORTED_100baseT_Full |
+				    SUPPORTED_1000baseT_Full;
+		tp->eee.advertised = ADVERTISED_100baseT_Full |
+				     ADVERTISED_1000baseT_Full;
+		tp->eee.eee_enabled = 1;
+		tp->eee.tx_lpi_enabled = 1;
+		tp->eee.tx_lpi_timer = TG3_CPMU_DBTMR1_LNKIDLE_2047US;
+	}
+
 	tg3_phy_init_link_config(tp);
 
 	if (!(tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN) &&
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 9b2d3ac..057532c 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -3371,6 +3371,7 @@ struct tg3 {
 	unsigned int			irq_cnt;
 
 	struct ethtool_coalesce		coal;
+	struct ethtool_eee		eee;
 
 	/* firmware info */
 	const char			*fw_needed;
-- 
cgit v0.10.2


From 400dfbaa8d444a29056b051a3d7082dc611e3b12 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Sat, 18 May 2013 06:26:53 +0000
Subject: tg3: Add tg3_eee_pull_config() function

Add tg3_eee_pull_config() to pull the settings from the hardware and
populate the eee structure.

If Link Flap Avoidance is enabled, we pull the eee settings from the hw
so as not to cause a phy reset on eee config mismatch later. This
requires moving down tg3_setup_eee() below the tg3_pull_config() to not
trample existing settings.

Reviewed-by: Ben Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 26804db..3e7bc38 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -2320,6 +2320,46 @@ static void tg3_phy_apply_otp(struct tg3 *tp)
 	tg3_phy_toggle_auxctl_smdsp(tp, false);
 }
 
+static void tg3_eee_pull_config(struct tg3 *tp, struct ethtool_eee *eee)
+{
+	u32 val;
+	struct ethtool_eee *dest = &tp->eee;
+
+	if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
+		return;
+
+	if (eee)
+		dest = eee;
+
+	if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, TG3_CL45_D7_EEERES_STAT, &val))
+		return;
+
+	/* Pull eee_active */
+	if (val == TG3_CL45_D7_EEERES_STAT_LP_1000T ||
+	    val == TG3_CL45_D7_EEERES_STAT_LP_100TX) {
+		dest->eee_active = 1;
+	} else
+		dest->eee_active = 0;
+
+	/* Pull lp advertised settings */
+	if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_LPABLE, &val))
+		return;
+	dest->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
+
+	/* Pull advertised and eee_enabled settings */
+	if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, &val))
+		return;
+	dest->eee_enabled = !!val;
+	dest->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
+
+	/* Pull tx_lpi_enabled */
+	val = tr32(TG3_CPMU_EEE_MODE);
+	dest->tx_lpi_enabled = !!(val & TG3_CPMU_EEEMD_LPI_IN_TX);
+
+	/* Pull lpi timer value */
+	dest->tx_lpi_timer = tr32(TG3_CPMU_EEE_DBTMR1) & 0xffff;
+}
+
 static void tg3_phy_eee_adjust(struct tg3 *tp, bool current_link_up)
 {
 	u32 val;
@@ -2343,11 +2383,8 @@ static void tg3_phy_eee_adjust(struct tg3 *tp, bool current_link_up)
 
 		tw32(TG3_CPMU_EEE_CTRL, eeectl);
 
-		tg3_phy_cl45_read(tp, MDIO_MMD_AN,
-				  TG3_CL45_D7_EEERES_STAT, &val);
-
-		if (val == TG3_CL45_D7_EEERES_STAT_LP_1000T ||
-		    val == TG3_CL45_D7_EEERES_STAT_LP_100TX)
+		tg3_eee_pull_config(tp, NULL);
+		if (tp->eee.eee_active)
 			tp->setlpicnt = 2;
 	}
 
@@ -9493,16 +9530,17 @@ static int tg3_reset_hw(struct tg3 *tp, bool reset_phy)
 	if (tg3_flag(tp, INIT_COMPLETE))
 		tg3_abort_hw(tp, 1);
 
-	/* Enable MAC control of LPI */
-	if (tp->phy_flags & TG3_PHYFLG_EEE_CAP)
-		tg3_setup_eee(tp);
-
 	if ((tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN) &&
 	    !(tp->phy_flags & TG3_PHYFLG_USER_CONFIGURED)) {
 		tg3_phy_pull_config(tp);
+		tg3_eee_pull_config(tp, NULL);
 		tp->phy_flags |= TG3_PHYFLG_USER_CONFIGURED;
 	}
 
+	/* Enable MAC control of LPI */
+	if (tp->phy_flags & TG3_PHYFLG_EEE_CAP)
+		tg3_setup_eee(tp);
+
 	if (reset_phy)
 		tg3_phy_reset(tp);
 
-- 
cgit v0.10.2


From 5b6c273ad6c3886f30c7c5df7009e489043c59f3 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Sat, 18 May 2013 06:26:54 +0000
Subject: tg3: Simplify tg3_phy_eee_config_ok() by reusing
 tg3_eee_pull_config()

eee_config_ok() was checking only for mismatch in advertised settings.
This patch expands the scope of eee_config_ok() to check for mismatch in
the other eee settings. On mismatch we will require a call to
tg3_setup_eee() to push the configured settings to the hardware.

Reviewed-by: Ben Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 3e7bc38..2e497482 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -4540,26 +4540,23 @@ static int tg3_init_5401phy_dsp(struct tg3 *tp)
 
 static bool tg3_phy_eee_config_ok(struct tg3 *tp)
 {
-	u32 val;
-	u32 tgtadv = 0;
-	u32 advertising = tp->link_config.advertising;
+	struct ethtool_eee eee;
 
 	if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
 		return true;
 
-	if (tg3_phy_cl45_read(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, &val))
-		return false;
-
-	val &= (MDIO_AN_EEE_ADV_100TX | MDIO_AN_EEE_ADV_1000T);
-
-
-	if (advertising & ADVERTISED_100baseT_Full)
-		tgtadv |= MDIO_AN_EEE_ADV_100TX;
-	if (advertising & ADVERTISED_1000baseT_Full)
-		tgtadv |= MDIO_AN_EEE_ADV_1000T;
+	tg3_eee_pull_config(tp, &eee);
 
-	if (val != tgtadv)
-		return false;
+	if (tp->eee.eee_enabled) {
+		if (tp->eee.advertised != eee.advertised ||
+		    tp->eee.tx_lpi_timer != eee.tx_lpi_timer ||
+		    tp->eee.tx_lpi_enabled != eee.tx_lpi_enabled)
+			return false;
+	} else {
+		/* EEE is disabled but we're advertising */
+		if (eee.advertised)
+			return false;
+	}
 
 	return true;
 }
@@ -4862,8 +4859,10 @@ static int tg3_setup_copper_phy(struct tg3 *tp, bool force_reset)
 			 */
 			if (!eee_config_ok &&
 			    (tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN) &&
-			    !force_reset)
+			    !force_reset) {
+				tg3_setup_eee(tp);
 				tg3_phy_reset(tp);
+			}
 		} else {
 			if (!(bmcr & BMCR_ANENABLE) &&
 			    tp->link_config.speed == current_speed &&
-- 
cgit v0.10.2


From 1cbf9eb85a6601b58f01a71ff10299d2bf5d3365 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Sat, 18 May 2013 06:26:55 +0000
Subject: tg3: Implement set/get_eee handlers

Reviewed-by: Ben Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 2e497482..fb06aa1 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -13618,6 +13618,57 @@ static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
 	return 0;
 }
 
+static int tg3_set_eee(struct net_device *dev, struct ethtool_eee *edata)
+{
+	struct tg3 *tp = netdev_priv(dev);
+
+	if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP)) {
+		netdev_warn(tp->dev, "Board does not support EEE!\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (edata->advertised != tp->eee.advertised) {
+		netdev_warn(tp->dev,
+			    "Direct manipulation of EEE advertisement is not supported\n");
+		return -EINVAL;
+	}
+
+	if (edata->tx_lpi_timer > TG3_CPMU_DBTMR1_LNKIDLE_MAX) {
+		netdev_warn(tp->dev,
+			    "Maximal Tx Lpi timer supported is %#x(u)\n",
+			    TG3_CPMU_DBTMR1_LNKIDLE_MAX);
+		return -EINVAL;
+	}
+
+	tp->eee = *edata;
+
+	tp->phy_flags |= TG3_PHYFLG_USER_CONFIGURED;
+	tg3_warn_mgmt_link_flap(tp);
+
+	if (netif_running(tp->dev)) {
+		tg3_full_lock(tp, 0);
+		tg3_setup_eee(tp);
+		tg3_phy_reset(tp);
+		tg3_full_unlock(tp);
+	}
+
+	return 0;
+}
+
+static int tg3_get_eee(struct net_device *dev, struct ethtool_eee *edata)
+{
+	struct tg3 *tp = netdev_priv(dev);
+
+	if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP)) {
+		netdev_warn(tp->dev,
+			    "Board does not support EEE!\n");
+		return -EOPNOTSUPP;
+	}
+
+	*edata = tp->eee;
+	return 0;
+}
+
 static const struct ethtool_ops tg3_ethtool_ops = {
 	.get_settings		= tg3_get_settings,
 	.set_settings		= tg3_set_settings,
@@ -13651,6 +13702,8 @@ static const struct ethtool_ops tg3_ethtool_ops = {
 	.get_channels		= tg3_get_channels,
 	.set_channels		= tg3_set_channels,
 	.get_ts_info		= tg3_get_ts_info,
+	.get_eee		= tg3_get_eee,
+	.set_eee		= tg3_set_eee,
 };
 
 static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *dev,
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 057532c..2530c20 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -1175,6 +1175,7 @@
 #define TG3_CPMU_EEE_DBTMR1		0x000036b4
 #define  TG3_CPMU_DBTMR1_PCIEXIT_2047US	 0x07ff0000
 #define  TG3_CPMU_DBTMR1_LNKIDLE_2047US	 0x000007ff
+#define  TG3_CPMU_DBTMR1_LNKIDLE_MAX	 0x0000ffff
 #define TG3_CPMU_EEE_DBTMR2		0x000036b8
 #define  TG3_CPMU_DBTMR2_APE_TX_2047US	 0x07ff0000
 #define  TG3_CPMU_DBTMR2_TXIDXEQ_2047US	 0x000007ff
-- 
cgit v0.10.2


From 8802f5790ef3e2e1d907169557e3dd2e0e77d98f Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 18 May 2013 07:14:53 +0000
Subject: net-bnx2x: dont reload on GRO change

bnx2x_set_features() forces a driver reload if GRO setting is changed.

A reload makes the ethernet port unresponsive for about 5 seconds.

This is not needed in the common case LRO is enabled, as LRO
(TPA_ENABLE_FLAG) has precedence over GRO (GRO_ENABLE_FLAG)

Tested:
 Verified that "ethtool -K eth0 gro {on|off}" doesn't blackout
 the NIC anymore

Google-Bug-Id: 8440442
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Dmitry Kravkov <dmitry@broadcom.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index b8fbe26..6cc5101 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -4599,6 +4599,7 @@ int bnx2x_set_features(struct net_device *dev, netdev_features_t features)
 {
 	struct bnx2x *bp = netdev_priv(dev);
 	u32 flags = bp->flags;
+	u32 changes;
 	bool bnx2x_reload = false;
 
 	if (features & NETIF_F_LRO)
@@ -4623,10 +4624,16 @@ int bnx2x_set_features(struct net_device *dev, netdev_features_t features)
 		}
 	}
 
-	if (flags ^ bp->flags) {
-		bp->flags = flags;
+	changes = flags ^ bp->flags;
+
+	/* if GRO is changed while LRO is enabled, dont force a reload */
+	if ((changes & GRO_ENABLE_FLAG) && (flags & TPA_ENABLE_FLAG))
+		changes &= ~GRO_ENABLE_FLAG;
+
+	if (changes)
 		bnx2x_reload = true;
-	}
+
+	bp->flags = flags;
 
 	if (bnx2x_reload) {
 		if (bp->recovery_state == BNX2X_RECOVERY_DONE)
-- 
cgit v0.10.2


From 1e18583adccfc122b5d6415cfe4bf1826c370f4e Mon Sep 17 00:00:00 2001
From: Rolf Eike Beer <eike-kernel@sf-tec.de>
Date: Sat, 18 May 2013 11:50:17 +0000
Subject: ThunderLAN: remove is_eisa flag

These 2 places are the only matches for is_eisa in the whole tree.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 60c400f..59abfbc 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -533,7 +533,6 @@ static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
 		/* This is a hack. We need to know which board structure
 		 * is suited for this adapter */
 		device_id = inw(ioaddr + EISA_ID2);
-		priv->is_eisa = 1;
 		if (device_id == 0x20F1) {
 			priv->adapter = &board_info[13]; /* NetFlex-3/E */
 			priv->adapter_rev = 23;		/* TLAN 2.3 */
diff --git a/drivers/net/ethernet/ti/tlan.h b/drivers/net/ethernet/ti/tlan.h
index 5fc98a8..2eb33a2 100644
--- a/drivers/net/ethernet/ti/tlan.h
+++ b/drivers/net/ethernet/ti/tlan.h
@@ -207,7 +207,6 @@ struct tlan_priv {
 	u8			tlan_full_duplex;
 	spinlock_t		lock;
 	u8			link;
-	u8			is_eisa;
 	struct work_struct			tlan_tqueue;
 	u8			neg_be_verbose;
 };
-- 
cgit v0.10.2


From 4fc1ad6f4b4d9214505eda434b1ed3b0bfd16981 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Sun, 19 May 2013 10:17:13 +0000
Subject: 3c59x: remove useless VORTEX_PCI() invocations

It's suboptimal to invoke quite complex VORTEX_PCI() macro every time we want
to get a 'struct pci_dev *' when we already have it in a variable...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 072c6f1..30e7421 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -1473,7 +1473,7 @@ static int vortex_probe1(struct device *gendev, void __iomem *ioaddr, int irq,
 
 	if (pdev) {
 		vp->pm_state_valid = 1;
- 		pci_save_state(VORTEX_PCI(vp));
+		pci_save_state(pdev);
  		acpi_set_WOL(dev);
 	}
 	retval = register_netdev(dev);
@@ -3233,21 +3233,20 @@ static void vortex_remove_one(struct pci_dev *pdev)
 	vp = netdev_priv(dev);
 
 	if (vp->cb_fn_base)
-		pci_iounmap(VORTEX_PCI(vp), vp->cb_fn_base);
+		pci_iounmap(pdev, vp->cb_fn_base);
 
 	unregister_netdev(dev);
 
-	if (VORTEX_PCI(vp)) {
-		pci_set_power_state(VORTEX_PCI(vp), PCI_D0);	/* Go active */
-		if (vp->pm_state_valid)
-			pci_restore_state(VORTEX_PCI(vp));
-		pci_disable_device(VORTEX_PCI(vp));
-	}
+	pci_set_power_state(pdev, PCI_D0);	/* Go active */
+	if (vp->pm_state_valid)
+		pci_restore_state(pdev);
+	pci_disable_device(pdev);
+
 	/* Should really use issue_and_wait() here */
 	iowrite16(TotalReset | ((vp->drv_flags & EEPROM_RESET) ? 0x04 : 0x14),
 	     vp->ioaddr + EL3_CMD);
 
-	pci_iounmap(VORTEX_PCI(vp), vp->ioaddr);
+	pci_iounmap(pdev, vp->ioaddr);
 
 	pci_free_consistent(pdev,
 						sizeof(struct boom_rx_desc) * RX_RING_SIZE
-- 
cgit v0.10.2


From a9683c94fe8c8f87fdc8380a2e76506aa1502dcb Mon Sep 17 00:00:00 2001
From: Tony Prisk <linux@prisktech.co.nz>
Date: Sat, 18 May 2013 09:39:05 +0000
Subject: net: velocity: Rename vptr->dev to vptr->netdev

Improve the clarity of the code in preparation for converting the
dma functions to generic versions, which require a struct device *.

This makes it possible to store a 'struct device *dev' in the
velocity_info structure.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c
index fb62489..187eef3 100644
--- a/drivers/net/ethernet/via/via-velocity.c
+++ b/drivers/net/ethernet/via/via-velocity.c
@@ -998,9 +998,9 @@ static void velocity_print_link_status(struct velocity_info *vptr)
 {
 
 	if (vptr->mii_status & VELOCITY_LINK_FAIL) {
-		VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->dev->name);
+		VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: failed to detect cable link\n", vptr->netdev->name);
 	} else if (vptr->options.spd_dpx == SPD_DPX_AUTO) {
-		VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->dev->name);
+		VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link auto-negotiation", vptr->netdev->name);
 
 		if (vptr->mii_status & VELOCITY_SPEED_1000)
 			VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps");
@@ -1014,7 +1014,7 @@ static void velocity_print_link_status(struct velocity_info *vptr)
 		else
 			VELOCITY_PRT(MSG_LEVEL_INFO, " half duplex\n");
 	} else {
-		VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->dev->name);
+		VELOCITY_PRT(MSG_LEVEL_INFO, KERN_NOTICE "%s: Link forced", vptr->netdev->name);
 		switch (vptr->options.spd_dpx) {
 		case SPD_DPX_1000_FULL:
 			VELOCITY_PRT(MSG_LEVEL_INFO, " speed 1000M bps full duplex\n");
@@ -1319,7 +1319,7 @@ static void velocity_init_registers(struct velocity_info *vptr,
 	case VELOCITY_INIT_RESET:
 	case VELOCITY_INIT_WOL:
 
-		netif_stop_queue(vptr->dev);
+		netif_stop_queue(vptr->netdev);
 
 		/*
 		 *	Reset RX to prevent RX pointer not on the 4X location
@@ -1332,7 +1332,7 @@ static void velocity_init_registers(struct velocity_info *vptr,
 		if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
 			velocity_print_link_status(vptr);
 			if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
-				netif_wake_queue(vptr->dev);
+				netif_wake_queue(vptr->netdev);
 		}
 
 		enable_flow_control_ability(vptr);
@@ -1354,7 +1354,7 @@ static void velocity_init_registers(struct velocity_info *vptr,
 
 		mac_eeprom_reload(regs);
 		for (i = 0; i < 6; i++)
-			writeb(vptr->dev->dev_addr[i], &(regs->PAR[i]));
+			writeb(vptr->netdev->dev_addr[i], &(regs->PAR[i]));
 
 		/*
 		 *	clear Pre_ACPI bit.
@@ -1377,7 +1377,7 @@ static void velocity_init_registers(struct velocity_info *vptr,
 		/*
 		 *	Set packet filter: Receive directed and broadcast address
 		 */
-		velocity_set_multi(vptr->dev);
+		velocity_set_multi(vptr->netdev);
 
 		/*
 		 *	Enable MII auto-polling
@@ -1404,14 +1404,14 @@ static void velocity_init_registers(struct velocity_info *vptr,
 		writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), &regs->CR0Set);
 
 		mii_status = velocity_get_opt_media_mode(vptr);
-		netif_stop_queue(vptr->dev);
+		netif_stop_queue(vptr->netdev);
 
 		mii_init(vptr, mii_status);
 
 		if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
 			velocity_print_link_status(vptr);
 			if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
-				netif_wake_queue(vptr->dev);
+				netif_wake_queue(vptr->netdev);
 		}
 
 		enable_flow_control_ability(vptr);
@@ -1474,7 +1474,7 @@ static int velocity_init_dma_rings(struct velocity_info *vptr)
 				    rx_ring_size, &pool_dma);
 	if (!pool) {
 		dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
-			vptr->dev->name);
+			vptr->netdev->name);
 		return -ENOMEM;
 	}
 
@@ -1514,7 +1514,7 @@ static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
 	struct rx_desc *rd = &(vptr->rx.ring[idx]);
 	struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
 
-	rd_info->skb = netdev_alloc_skb(vptr->dev, vptr->rx.buf_sz + 64);
+	rd_info->skb = netdev_alloc_skb(vptr->netdev, vptr->rx.buf_sz + 64);
 	if (rd_info->skb == NULL)
 		return -ENOMEM;
 
@@ -1620,7 +1620,7 @@ static int velocity_init_rd_ring(struct velocity_info *vptr)
 
 	if (velocity_rx_refill(vptr) != vptr->options.numrx) {
 		VELOCITY_PRT(MSG_LEVEL_ERR, KERN_ERR
-			"%s: failed to allocate RX buffer.\n", vptr->dev->name);
+			"%s: failed to allocate RX buffer.\n", vptr->netdev->name);
 		velocity_free_rd_ring(vptr);
 		goto out;
 	}
@@ -1809,7 +1809,7 @@ static void velocity_error(struct velocity_info *vptr, int status)
 		printk(KERN_ERR "TD structure error TDindex=%hx\n", readw(&regs->TDIdx[0]));
 		BYTE_REG_BITS_ON(TXESR_TDSTR, &regs->TXESR);
 		writew(TRDCSR_RUN, &regs->TDCSRClr);
-		netif_stop_queue(vptr->dev);
+		netif_stop_queue(vptr->netdev);
 
 		/* FIXME: port over the pci_device_failed code and use it
 		   here */
@@ -1850,10 +1850,10 @@ static void velocity_error(struct velocity_info *vptr, int status)
 
 		if (linked) {
 			vptr->mii_status &= ~VELOCITY_LINK_FAIL;
-			netif_carrier_on(vptr->dev);
+			netif_carrier_on(vptr->netdev);
 		} else {
 			vptr->mii_status |= VELOCITY_LINK_FAIL;
-			netif_carrier_off(vptr->dev);
+			netif_carrier_off(vptr->netdev);
 		}
 
 		velocity_print_link_status(vptr);
@@ -1867,9 +1867,9 @@ static void velocity_error(struct velocity_info *vptr, int status)
 		enable_mii_autopoll(regs);
 
 		if (vptr->mii_status & VELOCITY_LINK_FAIL)
-			netif_stop_queue(vptr->dev);
+			netif_stop_queue(vptr->netdev);
 		else
-			netif_wake_queue(vptr->dev);
+			netif_wake_queue(vptr->netdev);
 
 	}
 	if (status & ISR_MIBFI)
@@ -1894,7 +1894,7 @@ static int velocity_tx_srv(struct velocity_info *vptr)
 	int idx;
 	int works = 0;
 	struct velocity_td_info *tdinfo;
-	struct net_device_stats *stats = &vptr->dev->stats;
+	struct net_device_stats *stats = &vptr->netdev->stats;
 
 	for (qnum = 0; qnum < vptr->tx.numq; qnum++) {
 		for (idx = vptr->tx.tail[qnum]; vptr->tx.used[qnum] > 0;
@@ -1939,9 +1939,9 @@ static int velocity_tx_srv(struct velocity_info *vptr)
 	 *	Look to see if we should kick the transmit network
 	 *	layer for more work.
 	 */
-	if (netif_queue_stopped(vptr->dev) && (full == 0) &&
+	if (netif_queue_stopped(vptr->netdev) && (full == 0) &&
 	    (!(vptr->mii_status & VELOCITY_LINK_FAIL))) {
-		netif_wake_queue(vptr->dev);
+		netif_wake_queue(vptr->netdev);
 	}
 	return works;
 }
@@ -1989,7 +1989,7 @@ static int velocity_rx_copy(struct sk_buff **rx_skb, int pkt_size,
 	if (pkt_size < rx_copybreak) {
 		struct sk_buff *new_skb;
 
-		new_skb = netdev_alloc_skb_ip_align(vptr->dev, pkt_size);
+		new_skb = netdev_alloc_skb_ip_align(vptr->netdev, pkt_size);
 		if (new_skb) {
 			new_skb->ip_summed = rx_skb[0]->ip_summed;
 			skb_copy_from_linear_data(*rx_skb, new_skb->data, pkt_size);
@@ -2030,14 +2030,14 @@ static inline void velocity_iph_realign(struct velocity_info *vptr,
 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
 {
 	void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
-	struct net_device_stats *stats = &vptr->dev->stats;
+	struct net_device_stats *stats = &vptr->netdev->stats;
 	struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
 	struct rx_desc *rd = &(vptr->rx.ring[idx]);
 	int pkt_len = le16_to_cpu(rd->rdesc0.len) & 0x3fff;
 	struct sk_buff *skb;
 
 	if (rd->rdesc0.RSR & (RSR_STP | RSR_EDP)) {
-		VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->dev->name);
+		VELOCITY_PRT(MSG_LEVEL_VERBOSE, KERN_ERR " %s : the received frame span multple RDs.\n", vptr->netdev->name);
 		stats->rx_length_errors++;
 		return -EINVAL;
 	}
@@ -2075,7 +2075,7 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx)
 		   PCI_DMA_FROMDEVICE);
 
 	skb_put(skb, pkt_len - 4);
-	skb->protocol = eth_type_trans(skb, vptr->dev);
+	skb->protocol = eth_type_trans(skb, vptr->netdev);
 
 	if (rd->rdesc0.RSR & RSR_DETAG) {
 		u16 vid = swab16(le16_to_cpu(rd->rdesc1.PQTAG));
@@ -2100,7 +2100,7 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx)
  */
 static int velocity_rx_srv(struct velocity_info *vptr, int budget_left)
 {
-	struct net_device_stats *stats = &vptr->dev->stats;
+	struct net_device_stats *stats = &vptr->netdev->stats;
 	int rd_curr = vptr->rx.curr;
 	int works = 0;
 
@@ -2292,7 +2292,7 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu)
 
 	if ((new_mtu < VELOCITY_MIN_MTU) || new_mtu > (VELOCITY_MAX_MTU)) {
 		VELOCITY_PRT(MSG_LEVEL_ERR, KERN_NOTICE "%s: Invalid MTU.\n",
-				vptr->dev->name);
+				vptr->netdev->name);
 		ret = -EINVAL;
 		goto out_0;
 	}
@@ -2314,7 +2314,7 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu)
 			goto out_0;
 		}
 
-		tmp_vptr->dev = dev;
+		tmp_vptr->netdev = dev;
 		tmp_vptr->pdev = vptr->pdev;
 		tmp_vptr->options = vptr->options;
 		tmp_vptr->tx.numq = vptr->tx.numq;
@@ -2692,7 +2692,7 @@ static int velocity_get_pci_info(struct velocity_info *vptr,
  */
 static void velocity_print_info(struct velocity_info *vptr)
 {
-	struct net_device *dev = vptr->dev;
+	struct net_device *dev = vptr->netdev;
 
 	printk(KERN_INFO "%s: %s\n", dev->name, get_chip_name(vptr->chip_id));
 	printk(KERN_INFO "%s: Ethernet Address: %pM\n",
@@ -2755,7 +2755,7 @@ static int velocity_found1(struct pci_dev *pdev,
 
 	velocity_init_info(pdev, vptr, info);
 
-	vptr->dev = dev;
+	vptr->netdev = dev;
 
 	ret = pci_enable_device(pdev);
 	if (ret < 0)
@@ -3010,10 +3010,10 @@ static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
 	struct velocity_info *vptr = netdev_priv(dev);
 	unsigned long flags;
 
-	if (!netif_running(vptr->dev))
+	if (!netif_running(vptr->netdev))
 		return 0;
 
-	netif_device_detach(vptr->dev);
+	netif_device_detach(vptr->netdev);
 
 	spin_lock_irqsave(&vptr->lock, flags);
 	pci_save_state(pdev);
@@ -3078,7 +3078,7 @@ static int velocity_resume(struct pci_dev *pdev)
 	unsigned long flags;
 	int i;
 
-	if (!netif_running(vptr->dev))
+	if (!netif_running(vptr->netdev))
 		return 0;
 
 	pci_set_power_state(pdev, PCI_D0);
@@ -3101,7 +3101,7 @@ static int velocity_resume(struct pci_dev *pdev)
 
 	mac_enable_int(vptr->mac_regs);
 	spin_unlock_irqrestore(&vptr->lock, flags);
-	netif_device_attach(vptr->dev);
+	netif_device_attach(vptr->netdev);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/via/via-velocity.h b/drivers/net/ethernet/via/via-velocity.h
index 4cb9f13..ff8d7828 100644
--- a/drivers/net/ethernet/via/via-velocity.h
+++ b/drivers/net/ethernet/via/via-velocity.h
@@ -1435,7 +1435,7 @@ struct velocity_opt {
 
 struct velocity_info {
 	struct pci_dev *pdev;
-	struct net_device *dev;
+	struct net_device *netdev;
 
 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 	u8 ip_addr[4];
@@ -1514,7 +1514,7 @@ static inline int velocity_get_ip(struct velocity_info *vptr)
 	int res = -ENOENT;
 
 	rcu_read_lock();
-	in_dev = __in_dev_get_rcu(vptr->dev);
+	in_dev = __in_dev_get_rcu(vptr->netdev);
 	if (in_dev != NULL) {
 		ifa = (struct in_ifaddr *) in_dev->ifa_list;
 		if (ifa != NULL) {
-- 
cgit v0.10.2


From e2c41f143fb2db14ad9b644a515c98e6c2e5ea2d Mon Sep 17 00:00:00 2001
From: Tony Prisk <linux@prisktech.co.nz>
Date: Sat, 18 May 2013 09:39:06 +0000
Subject: net: velocity: Convert to generic dma functions

Remove the pci_* dma functions and replace with the more generic
versions.

In preparation of adding platform support, a new struct device *dev
is added to struct velocity_info which can be used by both the pci
and platform code.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c
index 187eef3..5996cee 100644
--- a/drivers/net/ethernet/via/via-velocity.c
+++ b/drivers/net/ethernet/via/via-velocity.c
@@ -46,6 +46,7 @@
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include <linux/init.h>
+#include <linux/dma-mapping.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/ioport.h>
@@ -1459,7 +1460,6 @@ static int velocity_init_dma_rings(struct velocity_info *vptr)
 	struct velocity_opt *opt = &vptr->options;
 	const unsigned int rx_ring_size = opt->numrx * sizeof(struct rx_desc);
 	const unsigned int tx_ring_size = opt->numtx * sizeof(struct tx_desc);
-	struct pci_dev *pdev = vptr->pdev;
 	dma_addr_t pool_dma;
 	void *pool;
 	unsigned int i;
@@ -1467,13 +1467,13 @@ static int velocity_init_dma_rings(struct velocity_info *vptr)
 	/*
 	 * Allocate all RD/TD rings a single pool.
 	 *
-	 * pci_alloc_consistent() fulfills the requirement for 64 bytes
+	 * dma_alloc_coherent() fulfills the requirement for 64 bytes
 	 * alignment
 	 */
-	pool = pci_alloc_consistent(pdev, tx_ring_size * vptr->tx.numq +
-				    rx_ring_size, &pool_dma);
+	pool = dma_alloc_coherent(vptr->dev, tx_ring_size * vptr->tx.numq +
+				    rx_ring_size, &pool_dma, GFP_ATOMIC);
 	if (!pool) {
-		dev_err(&pdev->dev, "%s : DMA memory allocation failed.\n",
+		dev_err(vptr->dev, "%s : DMA memory allocation failed.\n",
 			vptr->netdev->name);
 		return -ENOMEM;
 	}
@@ -1524,8 +1524,8 @@ static int velocity_alloc_rx_buf(struct velocity_info *vptr, int idx)
 	 */
 	skb_reserve(rd_info->skb,
 			64 - ((unsigned long) rd_info->skb->data & 63));
-	rd_info->skb_dma = pci_map_single(vptr->pdev, rd_info->skb->data,
-					vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
+	rd_info->skb_dma = dma_map_single(vptr->dev, rd_info->skb->data,
+					vptr->rx.buf_sz, DMA_FROM_DEVICE);
 
 	/*
 	 *	Fill in the descriptor to match
@@ -1588,8 +1588,8 @@ static void velocity_free_rd_ring(struct velocity_info *vptr)
 
 		if (!rd_info->skb)
 			continue;
-		pci_unmap_single(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
-				 PCI_DMA_FROMDEVICE);
+		dma_unmap_single(vptr->dev, rd_info->skb_dma, vptr->rx.buf_sz,
+				 DMA_FROM_DEVICE);
 		rd_info->skb_dma = 0;
 
 		dev_kfree_skb(rd_info->skb);
@@ -1670,7 +1670,7 @@ static void velocity_free_dma_rings(struct velocity_info *vptr)
 	const int size = vptr->options.numrx * sizeof(struct rx_desc) +
 		vptr->options.numtx * sizeof(struct tx_desc) * vptr->tx.numq;
 
-	pci_free_consistent(vptr->pdev, size, vptr->rx.ring, vptr->rx.pool_dma);
+	dma_free_coherent(vptr->dev, size, vptr->rx.ring, vptr->rx.pool_dma);
 }
 
 static int velocity_init_rings(struct velocity_info *vptr, int mtu)
@@ -1727,8 +1727,8 @@ static void velocity_free_tx_buf(struct velocity_info *vptr,
 				pktlen = max_t(size_t, pktlen,
 						td->td_buf[i].size & ~TD_QUEUE);
 
-			pci_unmap_single(vptr->pdev, tdinfo->skb_dma[i],
-					le16_to_cpu(pktlen), PCI_DMA_TODEVICE);
+			dma_unmap_single(vptr->dev, tdinfo->skb_dma[i],
+					le16_to_cpu(pktlen), DMA_TO_DEVICE);
 		}
 	}
 	dev_kfree_skb_irq(skb);
@@ -1750,8 +1750,8 @@ static void velocity_free_td_ring_entry(struct velocity_info *vptr,
 	if (td_info->skb) {
 		for (i = 0; i < td_info->nskb_dma; i++) {
 			if (td_info->skb_dma[i]) {
-				pci_unmap_single(vptr->pdev, td_info->skb_dma[i],
-					td_info->skb->len, PCI_DMA_TODEVICE);
+				dma_unmap_single(vptr->dev, td_info->skb_dma[i],
+					td_info->skb->len, DMA_TO_DEVICE);
 				td_info->skb_dma[i] = 0;
 			}
 		}
@@ -2029,7 +2029,6 @@ static inline void velocity_iph_realign(struct velocity_info *vptr,
  */
 static int velocity_receive_frame(struct velocity_info *vptr, int idx)
 {
-	void (*pci_action)(struct pci_dev *, dma_addr_t, size_t, int);
 	struct net_device_stats *stats = &vptr->netdev->stats;
 	struct velocity_rd_info *rd_info = &(vptr->rx.info[idx]);
 	struct rx_desc *rd = &(vptr->rx.ring[idx]);
@@ -2047,8 +2046,8 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx)
 
 	skb = rd_info->skb;
 
-	pci_dma_sync_single_for_cpu(vptr->pdev, rd_info->skb_dma,
-				    vptr->rx.buf_sz, PCI_DMA_FROMDEVICE);
+	dma_sync_single_for_cpu(vptr->dev, rd_info->skb_dma,
+				    vptr->rx.buf_sz, DMA_FROM_DEVICE);
 
 	/*
 	 *	Drop frame not meeting IEEE 802.3
@@ -2061,19 +2060,18 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx)
 		}
 	}
 
-	pci_action = pci_dma_sync_single_for_device;
-
 	velocity_rx_csum(rd, skb);
 
 	if (velocity_rx_copy(&skb, pkt_len, vptr) < 0) {
 		velocity_iph_realign(vptr, skb, pkt_len);
-		pci_action = pci_unmap_single;
 		rd_info->skb = NULL;
+		dma_unmap_single(vptr->dev, rd_info->skb_dma, vptr->rx.buf_sz,
+				 DMA_FROM_DEVICE);
+	} else {
+		dma_sync_single_for_device(vptr->dev, rd_info->skb_dma,
+					   vptr->rx.buf_sz, DMA_FROM_DEVICE);
 	}
 
-	pci_action(vptr->pdev, rd_info->skb_dma, vptr->rx.buf_sz,
-		   PCI_DMA_FROMDEVICE);
-
 	skb_put(skb, pkt_len - 4);
 	skb->protocol = eth_type_trans(skb, vptr->netdev);
 
@@ -2550,7 +2548,8 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb,
 	 *	add it to the transmit ring.
 	 */
 	tdinfo->skb = skb;
-	tdinfo->skb_dma[0] = pci_map_single(vptr->pdev, skb->data, pktlen, PCI_DMA_TODEVICE);
+	tdinfo->skb_dma[0] = dma_map_single(vptr->dev, skb->data, pktlen,
+								DMA_TO_DEVICE);
 	td_ptr->tdesc0.len = cpu_to_le16(pktlen);
 	td_ptr->td_buf[0].pa_low = cpu_to_le32(tdinfo->skb_dma[0]);
 	td_ptr->td_buf[0].pa_high = 0;
@@ -2560,7 +2559,7 @@ static netdev_tx_t velocity_xmit(struct sk_buff *skb,
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 		const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 
-		tdinfo->skb_dma[i + 1] = skb_frag_dma_map(&vptr->pdev->dev,
+		tdinfo->skb_dma[i + 1] = skb_frag_dma_map(vptr->dev,
 							  frag, 0,
 							  skb_frag_size(frag),
 							  DMA_TO_DEVICE);
@@ -2637,6 +2636,7 @@ static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr,
 {
 	memset(vptr, 0, sizeof(struct velocity_info));
 
+	vptr->dev = &pdev->dev;
 	vptr->pdev = pdev;
 	vptr->chip_id = info->chip_id;
 	vptr->tx.numq = info->txqueue;
@@ -2744,7 +2744,6 @@ static int velocity_found1(struct pci_dev *pdev,
 	SET_NETDEV_DEV(dev, &pdev->dev);
 	vptr = netdev_priv(dev);
 
-
 	if (first) {
 		printk(KERN_INFO "%s Ver. %s\n",
 			VELOCITY_FULL_DRV_NAM, VELOCITY_VERSION);
diff --git a/drivers/net/ethernet/via/via-velocity.h b/drivers/net/ethernet/via/via-velocity.h
index ff8d7828..c38bbae 100644
--- a/drivers/net/ethernet/via/via-velocity.h
+++ b/drivers/net/ethernet/via/via-velocity.h
@@ -1434,6 +1434,7 @@ struct velocity_opt {
 #define GET_RD_BY_IDX(vptr, idx)   (vptr->rd_ring[idx])
 
 struct velocity_info {
+	struct device *dev;
 	struct pci_dev *pdev;
 	struct net_device *netdev;
 
-- 
cgit v0.10.2


From 6dffbe53fbdcc7bd5f6379fa18264f060b0cf61d Mon Sep 17 00:00:00 2001
From: Tony Prisk <linux@prisktech.co.nz>
Date: Sat, 18 May 2013 09:39:07 +0000
Subject: net: velocity: Add platform device support to VIA velocity driver

Add support for the VIA Velocity network driver to be bound to a
OF created platform device.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/via-velocity.txt b/Documentation/devicetree/bindings/net/via-velocity.txt
new file mode 100644
index 0000000..b3db469
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/via-velocity.txt
@@ -0,0 +1,20 @@
+* VIA Velocity 10/100/1000 Network Controller
+
+Required properties:
+- compatible : Should be "via,velocity-vt6110"
+- reg : Address and length of the io space
+- interrupts : Should contain the controller interrupt line
+
+Optional properties:
+- no-eeprom : PCI network cards use an external EEPROM to store data. Embedded
+	devices quite often set this data in uboot and do not provide an eeprom.
+	Specify this option if you have no external eeprom.
+
+Examples:
+
+eth0@d8004000 {
+	compatible = "via,velocity-vt6110";
+	reg = <0xd8004000 0x400>;
+	interrupts = <10>;
+	no-eeprom;
+};
diff --git a/drivers/net/ethernet/via/Kconfig b/drivers/net/ethernet/via/Kconfig
index 68a9ba6..6a87097 100644
--- a/drivers/net/ethernet/via/Kconfig
+++ b/drivers/net/ethernet/via/Kconfig
@@ -5,7 +5,6 @@
 config NET_VENDOR_VIA
 	bool "VIA devices"
 	default y
-	depends on PCI
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
@@ -45,7 +44,7 @@ config VIA_RHINE_MMIO
 
 config VIA_VELOCITY
 	tristate "VIA Velocity support"
-	depends on PCI
+	depends on (PCI || USE_OF)
 	select CRC32
 	select CRC_CCITT
 	select NET_CORE
diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c
index 5996cee..7691994 100644
--- a/drivers/net/ethernet/via/via-velocity.c
+++ b/drivers/net/ethernet/via/via-velocity.c
@@ -65,7 +65,11 @@
 #include <linux/if.h>
 #include <linux/uaccess.h>
 #include <linux/proc_fs.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/inetdevice.h>
+#include <linux/platform_device.h>
 #include <linux/reboot.h>
 #include <linux/ethtool.h>
 #include <linux/mii.h>
@@ -80,10 +84,24 @@
 
 #include "via-velocity.h"
 
+enum velocity_bus_type {
+	BUS_PCI,
+	BUS_PLATFORM,
+};
 
 static int velocity_nics;
 static int msglevel = MSG_LEVEL_INFO;
 
+static void velocity_set_power_state(struct velocity_info *vptr, char state)
+{
+	void *addr = vptr->mac_regs;
+
+	if (vptr->pdev)
+		pci_set_power_state(vptr->pdev, state);
+	else
+		writeb(state, addr + 0x154);
+}
+
 /**
  *	mac_get_cam_mask	-	Read a CAM mask
  *	@regs: register block for this velocity
@@ -362,12 +380,23 @@ static struct velocity_info_tbl chip_info_table[] = {
  *	Describe the PCI device identifiers that we support in this
  *	device driver. Used for hotplug autoloading.
  */
-static DEFINE_PCI_DEVICE_TABLE(velocity_id_table) = {
+
+static DEFINE_PCI_DEVICE_TABLE(velocity_pci_id_table) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_612X) },
 	{ }
 };
 
-MODULE_DEVICE_TABLE(pci, velocity_id_table);
+MODULE_DEVICE_TABLE(pci, velocity_pci_id_table);
+
+/**
+ *	Describe the OF device identifiers that we support in this
+ *	device driver. Used for devicetree nodes.
+ */
+static struct of_device_id velocity_of_ids[] = {
+	{ .compatible = "via,velocity-vt6110", .data = &chip_info_table[0] },
+	{ /* Sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, velocity_of_ids);
 
 /**
  *	get_chip_name	- 	identifier to name
@@ -386,29 +415,6 @@ static const char *get_chip_name(enum chip_type chip_id)
 }
 
 /**
- *	velocity_remove1	-	device unplug
- *	@pdev: PCI device being removed
- *
- *	Device unload callback. Called on an unplug or on module
- *	unload for each active device that is present. Disconnects
- *	the device from the network layer and frees all the resources
- */
-static void velocity_remove1(struct pci_dev *pdev)
-{
-	struct net_device *dev = pci_get_drvdata(pdev);
-	struct velocity_info *vptr = netdev_priv(dev);
-
-	unregister_netdev(dev);
-	iounmap(vptr->mac_regs);
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
-	free_netdev(dev);
-
-	velocity_nics--;
-}
-
-/**
  *	velocity_set_int_opt	-	parser for integer options
  *	@opt: pointer to option value
  *	@val: value the user requested (or -1 for default)
@@ -1181,6 +1187,17 @@ static void mii_init(struct velocity_info *vptr, u32 mii_status)
 	u16 BMCR;
 
 	switch (PHYID_GET_PHY_ID(vptr->phy_id)) {
+	case PHYID_ICPLUS_IP101A:
+		MII_REG_BITS_ON((ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP),
+						MII_ADVERTISE, vptr->mac_regs);
+		if (vptr->mii_status & VELOCITY_DUPLEX_FULL)
+			MII_REG_BITS_ON(TCSR_ECHODIS, MII_SREVISION,
+								vptr->mac_regs);
+		else
+			MII_REG_BITS_OFF(TCSR_ECHODIS, MII_SREVISION,
+								vptr->mac_regs);
+		MII_REG_BITS_ON(PLED_LALBE, MII_TPISTATUS, vptr->mac_regs);
+		break;
 	case PHYID_CICADA_CS8201:
 		/*
 		 *	Reset to hardware default
@@ -1312,6 +1329,7 @@ static void velocity_init_registers(struct velocity_info *vptr,
 				    enum velocity_init_type type)
 {
 	struct mac_regs __iomem *regs = vptr->mac_regs;
+	struct net_device *netdev = vptr->netdev;
 	int i, mii_status;
 
 	mac_wol_reset(regs);
@@ -1320,7 +1338,7 @@ static void velocity_init_registers(struct velocity_info *vptr,
 	case VELOCITY_INIT_RESET:
 	case VELOCITY_INIT_WOL:
 
-		netif_stop_queue(vptr->netdev);
+		netif_stop_queue(netdev);
 
 		/*
 		 *	Reset RX to prevent RX pointer not on the 4X location
@@ -1333,7 +1351,7 @@ static void velocity_init_registers(struct velocity_info *vptr,
 		if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
 			velocity_print_link_status(vptr);
 			if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
-				netif_wake_queue(vptr->netdev);
+				netif_wake_queue(netdev);
 		}
 
 		enable_flow_control_ability(vptr);
@@ -1353,9 +1371,11 @@ static void velocity_init_registers(struct velocity_info *vptr,
 		velocity_soft_reset(vptr);
 		mdelay(5);
 
-		mac_eeprom_reload(regs);
-		for (i = 0; i < 6; i++)
-			writeb(vptr->netdev->dev_addr[i], &(regs->PAR[i]));
+		if (!vptr->no_eeprom) {
+			mac_eeprom_reload(regs);
+			for (i = 0; i < 6; i++)
+				writeb(netdev->dev_addr[i], regs->PAR + i);
+		}
 
 		/*
 		 *	clear Pre_ACPI bit.
@@ -1378,7 +1398,7 @@ static void velocity_init_registers(struct velocity_info *vptr,
 		/*
 		 *	Set packet filter: Receive directed and broadcast address
 		 */
-		velocity_set_multi(vptr->netdev);
+		velocity_set_multi(netdev);
 
 		/*
 		 *	Enable MII auto-polling
@@ -1405,14 +1425,14 @@ static void velocity_init_registers(struct velocity_info *vptr,
 		writel((CR0_DPOLL | CR0_TXON | CR0_RXON | CR0_STRT), &regs->CR0Set);
 
 		mii_status = velocity_get_opt_media_mode(vptr);
-		netif_stop_queue(vptr->netdev);
+		netif_stop_queue(netdev);
 
 		mii_init(vptr, mii_status);
 
 		if (velocity_set_media_mode(vptr, mii_status) != VELOCITY_LINK_CHANGE) {
 			velocity_print_link_status(vptr);
 			if (!(vptr->mii_status & VELOCITY_LINK_FAIL))
-				netif_wake_queue(vptr->netdev);
+				netif_wake_queue(netdev);
 		}
 
 		enable_flow_control_ability(vptr);
@@ -2233,15 +2253,15 @@ static int velocity_open(struct net_device *dev)
 		goto out;
 
 	/* Ensure chip is running */
-	pci_set_power_state(vptr->pdev, PCI_D0);
+	velocity_set_power_state(vptr, PCI_D0);
 
 	velocity_init_registers(vptr, VELOCITY_INIT_COLD);
 
-	ret = request_irq(vptr->pdev->irq, velocity_intr, IRQF_SHARED,
+	ret = request_irq(dev->irq, velocity_intr, IRQF_SHARED,
 			  dev->name, dev);
 	if (ret < 0) {
 		/* Power down the chip */
-		pci_set_power_state(vptr->pdev, PCI_D3hot);
+		velocity_set_power_state(vptr, PCI_D3hot);
 		velocity_free_rings(vptr);
 		goto out;
 	}
@@ -2314,6 +2334,7 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu)
 
 		tmp_vptr->netdev = dev;
 		tmp_vptr->pdev = vptr->pdev;
+		tmp_vptr->dev = vptr->dev;
 		tmp_vptr->options = vptr->options;
 		tmp_vptr->tx.numq = vptr->tx.numq;
 
@@ -2413,7 +2434,7 @@ static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	   saving then we need to bring the device back up to talk to it */
 
 	if (!netif_running(dev))
-		pci_set_power_state(vptr->pdev, PCI_D0);
+		velocity_set_power_state(vptr, PCI_D0);
 
 	switch (cmd) {
 	case SIOCGMIIPHY:	/* Get address of MII PHY in use. */
@@ -2426,7 +2447,7 @@ static int velocity_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 		ret = -EOPNOTSUPP;
 	}
 	if (!netif_running(dev))
-		pci_set_power_state(vptr->pdev, PCI_D3hot);
+		velocity_set_power_state(vptr, PCI_D3hot);
 
 
 	return ret;
@@ -2492,7 +2513,7 @@ static int velocity_close(struct net_device *dev)
 	if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED)
 		velocity_get_ip(vptr);
 
-	free_irq(vptr->pdev->irq, dev);
+	free_irq(dev->irq, dev);
 
 	velocity_free_rings(vptr);
 
@@ -2631,13 +2652,9 @@ static const struct net_device_ops velocity_netdev_ops = {
  *	Set up the initial velocity_info struct for the device that has been
  *	discovered.
  */
-static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr,
-			       const struct velocity_info_tbl *info)
+static void velocity_init_info(struct velocity_info *vptr,
+				const struct velocity_info_tbl *info)
 {
-	memset(vptr, 0, sizeof(struct velocity_info));
-
-	vptr->dev = &pdev->dev;
-	vptr->pdev = pdev;
 	vptr->chip_id = info->chip_id;
 	vptr->tx.numq = info->txqueue;
 	vptr->multicast_limit = MCAM_SIZE;
@@ -2652,10 +2669,9 @@ static void velocity_init_info(struct pci_dev *pdev, struct velocity_info *vptr,
  *	Retrieve the PCI configuration space data that interests us from
  *	the kernel PCI layer
  */
-static int velocity_get_pci_info(struct velocity_info *vptr,
-				 struct pci_dev *pdev)
+static int velocity_get_pci_info(struct velocity_info *vptr)
 {
-	vptr->rev_id = pdev->revision;
+	struct pci_dev *pdev = vptr->pdev;
 
 	pci_set_master(pdev);
 
@@ -2678,7 +2694,37 @@ static int velocity_get_pci_info(struct velocity_info *vptr,
 		dev_err(&pdev->dev, "region #1 is too small.\n");
 		return -EINVAL;
 	}
-	vptr->pdev = pdev;
+
+	return 0;
+}
+
+/**
+ *	velocity_get_platform_info - retrieve platform info for device
+ *	@vptr: velocity device
+ *	@pdev: platform device it matches
+ *
+ *	Retrieve the Platform configuration data that interests us
+ */
+static int velocity_get_platform_info(struct velocity_info *vptr)
+{
+	struct resource res;
+	int ret;
+
+	if (of_get_property(vptr->dev->of_node, "no-eeprom", NULL))
+		vptr->no_eeprom = 1;
+
+	ret = of_address_to_resource(vptr->dev->of_node, 0, &res);
+	if (ret) {
+		dev_err(vptr->dev, "unable to find memory address\n");
+		return ret;
+	}
+
+	vptr->memaddr = res.start;
+
+	if (resource_size(&res) < VELOCITY_IO_SIZE) {
+		dev_err(vptr->dev, "memory region is too small.\n");
+		return -EINVAL;
+	}
 
 	return 0;
 }
@@ -2707,21 +2753,22 @@ static u32 velocity_get_link(struct net_device *dev)
 }
 
 /**
- *	velocity_found1		-	set up discovered velocity card
+ *	velocity_probe - set up discovered velocity device
  *	@pdev: PCI device
  *	@ent: PCI device table entry that matched
+ *	@bustype: bus that device is connected to
  *
  *	Configure a discovered adapter from scratch. Return a negative
  *	errno error code on failure paths.
  */
-static int velocity_found1(struct pci_dev *pdev,
-			   const struct pci_device_id *ent)
+static int velocity_probe(struct device *dev, int irq,
+			   const struct velocity_info_tbl *info,
+			   enum velocity_bus_type bustype)
 {
 	static int first = 1;
-	struct net_device *dev;
+	struct net_device *netdev;
 	int i;
 	const char *drv_string;
-	const struct velocity_info_tbl *info = &chip_info_table[ent->driver_data];
 	struct velocity_info *vptr;
 	struct mac_regs __iomem *regs;
 	int ret = -ENOMEM;
@@ -2730,19 +2777,18 @@ static int velocity_found1(struct pci_dev *pdev,
 	 * can support more than MAX_UNITS.
 	 */
 	if (velocity_nics >= MAX_UNITS) {
-		dev_notice(&pdev->dev, "already found %d NICs.\n",
-			   velocity_nics);
+		dev_notice(dev, "already found %d NICs.\n", velocity_nics);
 		return -ENODEV;
 	}
 
-	dev = alloc_etherdev(sizeof(struct velocity_info));
-	if (!dev)
+	netdev = alloc_etherdev(sizeof(struct velocity_info));
+	if (!netdev)
 		goto out;
 
 	/* Chain it all together */
 
-	SET_NETDEV_DEV(dev, &pdev->dev);
-	vptr = netdev_priv(dev);
+	SET_NETDEV_DEV(netdev, dev);
+	vptr = netdev_priv(netdev);
 
 	if (first) {
 		printk(KERN_INFO "%s Ver. %s\n",
@@ -2752,41 +2798,41 @@ static int velocity_found1(struct pci_dev *pdev,
 		first = 0;
 	}
 
-	velocity_init_info(pdev, vptr, info);
+	netdev->irq = irq;
+	vptr->netdev = netdev;
+	vptr->dev = dev;
 
-	vptr->netdev = dev;
+	velocity_init_info(vptr, info);
 
-	ret = pci_enable_device(pdev);
-	if (ret < 0)
-		goto err_free_dev;
+	if (bustype == BUS_PCI) {
+		vptr->pdev = to_pci_dev(dev);
 
-	ret = velocity_get_pci_info(vptr, pdev);
-	if (ret < 0) {
-		/* error message already printed */
-		goto err_disable;
-	}
-
-	ret = pci_request_regions(pdev, VELOCITY_NAME);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "No PCI resources.\n");
-		goto err_disable;
+		ret = velocity_get_pci_info(vptr);
+		if (ret < 0)
+			goto err_free_dev;
+	} else {
+		vptr->pdev = NULL;
+		ret = velocity_get_platform_info(vptr);
+		if (ret < 0)
+			goto err_free_dev;
 	}
 
 	regs = ioremap(vptr->memaddr, VELOCITY_IO_SIZE);
 	if (regs == NULL) {
 		ret = -EIO;
-		goto err_release_res;
+		goto err_free_dev;
 	}
 
 	vptr->mac_regs = regs;
+	vptr->rev_id = readb(&regs->rev_id);
 
 	mac_wol_reset(regs);
 
 	for (i = 0; i < 6; i++)
-		dev->dev_addr[i] = readb(&regs->PAR[i]);
+		netdev->dev_addr[i] = readb(&regs->PAR[i]);
 
 
-	drv_string = dev_driver_string(&pdev->dev);
+	drv_string = dev_driver_string(dev);
 
 	velocity_get_options(&vptr->options, velocity_nics, drv_string);
 
@@ -2807,46 +2853,125 @@ static int velocity_found1(struct pci_dev *pdev,
 
 	vptr->phy_id = MII_GET_PHY_ID(vptr->mac_regs);
 
-	dev->netdev_ops = &velocity_netdev_ops;
-	dev->ethtool_ops = &velocity_ethtool_ops;
-	netif_napi_add(dev, &vptr->napi, velocity_poll, VELOCITY_NAPI_WEIGHT);
+	netdev->netdev_ops = &velocity_netdev_ops;
+	netdev->ethtool_ops = &velocity_ethtool_ops;
+	netif_napi_add(netdev, &vptr->napi, velocity_poll,
+							VELOCITY_NAPI_WEIGHT);
 
-	dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
+	netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
 			   NETIF_F_HW_VLAN_CTAG_TX;
-	dev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_FILTER |
-			 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_IP_CSUM;
+	netdev->features |= NETIF_F_HW_VLAN_CTAG_TX |
+			NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_RX |
+			NETIF_F_IP_CSUM;
 
-	ret = register_netdev(dev);
+	ret = register_netdev(netdev);
 	if (ret < 0)
 		goto err_iounmap;
 
-	if (!velocity_get_link(dev)) {
-		netif_carrier_off(dev);
+	if (!velocity_get_link(netdev)) {
+		netif_carrier_off(netdev);
 		vptr->mii_status |= VELOCITY_LINK_FAIL;
 	}
 
 	velocity_print_info(vptr);
-	pci_set_drvdata(pdev, dev);
+	dev_set_drvdata(vptr->dev, netdev);
 
 	/* and leave the chip powered down */
 
-	pci_set_power_state(pdev, PCI_D3hot);
+	velocity_set_power_state(vptr, PCI_D3hot);
 	velocity_nics++;
 out:
 	return ret;
 
 err_iounmap:
 	iounmap(regs);
-err_release_res:
-	pci_release_regions(pdev);
-err_disable:
-	pci_disable_device(pdev);
 err_free_dev:
-	free_netdev(dev);
+	free_netdev(netdev);
 	goto out;
 }
 
-#ifdef CONFIG_PM
+/**
+ *	velocity_remove	- device unplug
+ *	@dev: device being removed
+ *
+ *	Device unload callback. Called on an unplug or on module
+ *	unload for each active device that is present. Disconnects
+ *	the device from the network layer and frees all the resources
+ */
+static int velocity_remove(struct device *dev)
+{
+	struct net_device *netdev = dev_get_drvdata(dev);
+	struct velocity_info *vptr = netdev_priv(netdev);
+
+	unregister_netdev(netdev);
+	iounmap(vptr->mac_regs);
+	free_netdev(netdev);
+	velocity_nics--;
+
+	return 0;
+}
+
+static int velocity_pci_probe(struct pci_dev *pdev,
+			       const struct pci_device_id *ent)
+{
+	const struct velocity_info_tbl *info =
+					&chip_info_table[ent->driver_data];
+	int ret;
+
+	ret = pci_enable_device(pdev);
+	if (ret < 0)
+		return ret;
+
+	ret = pci_request_regions(pdev, VELOCITY_NAME);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "No PCI resources.\n");
+		goto fail1;
+	}
+
+	ret = velocity_probe(&pdev->dev, pdev->irq, info, BUS_PCI);
+	if (ret == 0)
+		return 0;
+
+	pci_release_regions(pdev);
+fail1:
+	pci_disable_device(pdev);
+	return ret;
+}
+
+static void velocity_pci_remove(struct pci_dev *pdev)
+{
+	velocity_remove(&pdev->dev);
+
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+}
+
+static int velocity_platform_probe(struct platform_device *pdev)
+{
+	const struct of_device_id *of_id;
+	const struct velocity_info_tbl *info;
+	int irq;
+
+	of_id = of_match_device(velocity_of_ids, &pdev->dev);
+	if (!of_id)
+		return -EINVAL;
+	info = of_id->data;
+
+	irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+	if (!irq)
+		return -EINVAL;
+
+	return velocity_probe(&pdev->dev, irq, info, BUS_PLATFORM);
+}
+
+static int velocity_platform_remove(struct platform_device *pdev)
+{
+	velocity_remove(&pdev->dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
 /**
  *	wol_calc_crc		-	WOL CRC
  *	@pattern: data pattern
@@ -3003,10 +3128,10 @@ static void velocity_save_context(struct velocity_info *vptr, struct velocity_co
 
 }
 
-static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
+static int velocity_suspend(struct device *dev)
 {
-	struct net_device *dev = pci_get_drvdata(pdev);
-	struct velocity_info *vptr = netdev_priv(dev);
+	struct net_device *netdev = dev_get_drvdata(dev);
+	struct velocity_info *vptr = netdev_priv(netdev);
 	unsigned long flags;
 
 	if (!netif_running(vptr->netdev))
@@ -3015,20 +3140,23 @@ static int velocity_suspend(struct pci_dev *pdev, pm_message_t state)
 	netif_device_detach(vptr->netdev);
 
 	spin_lock_irqsave(&vptr->lock, flags);
-	pci_save_state(pdev);
+	if (vptr->pdev)
+		pci_save_state(vptr->pdev);
 
 	if (vptr->flags & VELOCITY_FLAGS_WOL_ENABLED) {
 		velocity_get_ip(vptr);
 		velocity_save_context(vptr, &vptr->context);
 		velocity_shutdown(vptr);
 		velocity_set_wol(vptr);
-		pci_enable_wake(pdev, PCI_D3hot, 1);
-		pci_set_power_state(pdev, PCI_D3hot);
+		if (vptr->pdev)
+			pci_enable_wake(vptr->pdev, PCI_D3hot, 1);
+		velocity_set_power_state(vptr, PCI_D3hot);
 	} else {
 		velocity_save_context(vptr, &vptr->context);
 		velocity_shutdown(vptr);
-		pci_disable_device(pdev);
-		pci_set_power_state(pdev, pci_choose_state(pdev, state));
+		if (vptr->pdev)
+			pci_disable_device(vptr->pdev);
+		velocity_set_power_state(vptr, PCI_D3hot);
 	}
 
 	spin_unlock_irqrestore(&vptr->lock, flags);
@@ -3070,19 +3198,22 @@ static void velocity_restore_context(struct velocity_info *vptr, struct velocity
 		writeb(*((u8 *) (context->mac_reg + i)), ptr + i);
 }
 
-static int velocity_resume(struct pci_dev *pdev)
+static int velocity_resume(struct device *dev)
 {
-	struct net_device *dev = pci_get_drvdata(pdev);
-	struct velocity_info *vptr = netdev_priv(dev);
+	struct net_device *netdev = dev_get_drvdata(dev);
+	struct velocity_info *vptr = netdev_priv(netdev);
 	unsigned long flags;
 	int i;
 
 	if (!netif_running(vptr->netdev))
 		return 0;
 
-	pci_set_power_state(pdev, PCI_D0);
-	pci_enable_wake(pdev, 0, 0);
-	pci_restore_state(pdev);
+	velocity_set_power_state(vptr, PCI_D0);
+
+	if (vptr->pdev) {
+		pci_enable_wake(vptr->pdev, 0, 0);
+		pci_restore_state(vptr->pdev);
+	}
 
 	mac_wol_reset(vptr->mac_regs);
 
@@ -3104,23 +3235,34 @@ static int velocity_resume(struct pci_dev *pdev)
 
 	return 0;
 }
-#endif
+#endif	/* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(velocity_pm_ops, velocity_suspend, velocity_resume);
 
 /*
  *	Definition for our device driver. The PCI layer interface
  *	uses this to handle all our card discover and plugging
  */
-static struct pci_driver velocity_driver = {
+static struct pci_driver velocity_pci_driver = {
 	.name		= VELOCITY_NAME,
-	.id_table	= velocity_id_table,
-	.probe		= velocity_found1,
-	.remove		= velocity_remove1,
-#ifdef CONFIG_PM
-	.suspend	= velocity_suspend,
-	.resume		= velocity_resume,
-#endif
+	.id_table	= velocity_pci_id_table,
+	.probe		= velocity_pci_probe,
+	.remove		= velocity_pci_remove,
+	.driver = {
+		.pm = &velocity_pm_ops,
+	},
 };
 
+static struct platform_driver velocity_platform_driver = {
+	.probe		= velocity_platform_probe,
+	.remove		= velocity_platform_remove,
+	.driver = {
+		.name = "via-velocity",
+		.owner = THIS_MODULE,
+		.of_match_table = velocity_of_ids,
+		.pm = &velocity_pm_ops,
+	},
+};
 
 /**
  *	velocity_ethtool_up	-	pre hook for ethtool
@@ -3133,7 +3275,7 @@ static int velocity_ethtool_up(struct net_device *dev)
 {
 	struct velocity_info *vptr = netdev_priv(dev);
 	if (!netif_running(dev))
-		pci_set_power_state(vptr->pdev, PCI_D0);
+		velocity_set_power_state(vptr, PCI_D0);
 	return 0;
 }
 
@@ -3148,7 +3290,7 @@ static void velocity_ethtool_down(struct net_device *dev)
 {
 	struct velocity_info *vptr = netdev_priv(dev);
 	if (!netif_running(dev))
-		pci_set_power_state(vptr->pdev, PCI_D3hot);
+		velocity_set_power_state(vptr, PCI_D3hot);
 }
 
 static int velocity_get_settings(struct net_device *dev,
@@ -3268,9 +3410,14 @@ static int velocity_set_settings(struct net_device *dev,
 static void velocity_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 {
 	struct velocity_info *vptr = netdev_priv(dev);
+
 	strlcpy(info->driver, VELOCITY_NAME, sizeof(info->driver));
 	strlcpy(info->version, VELOCITY_VERSION, sizeof(info->version));
-	strlcpy(info->bus_info, pci_name(vptr->pdev), sizeof(info->bus_info));
+	if (vptr->pdev)
+		strlcpy(info->bus_info, pci_name(vptr->pdev),
+						sizeof(info->bus_info));
+	else
+		strlcpy(info->bus_info, "platform", sizeof(info->bus_info));
 }
 
 static void velocity_ethtool_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
@@ -3560,13 +3707,20 @@ static void velocity_unregister_notifier(void)
  */
 static int __init velocity_init_module(void)
 {
-	int ret;
+	int ret_pci, ret_platform;
 
 	velocity_register_notifier();
-	ret = pci_register_driver(&velocity_driver);
-	if (ret < 0)
+
+	ret_pci = pci_register_driver(&velocity_pci_driver);
+	ret_platform = platform_driver_register(&velocity_platform_driver);
+
+	/* if both_registers failed, remove the notifier */
+	if ((ret_pci < 0) && (ret_platform < 0)) {
 		velocity_unregister_notifier();
-	return ret;
+		return ret_pci;
+	}
+
+	return 0;
 }
 
 /**
@@ -3580,7 +3734,9 @@ static int __init velocity_init_module(void)
 static void __exit velocity_cleanup_module(void)
 {
 	velocity_unregister_notifier();
-	pci_unregister_driver(&velocity_driver);
+
+	pci_unregister_driver(&velocity_pci_driver);
+	platform_driver_unregister(&velocity_platform_driver);
 }
 
 module_init(velocity_init_module);
diff --git a/drivers/net/ethernet/via/via-velocity.h b/drivers/net/ethernet/via/via-velocity.h
index c38bbae..9453bfa 100644
--- a/drivers/net/ethernet/via/via-velocity.h
+++ b/drivers/net/ethernet/via/via-velocity.h
@@ -1265,7 +1265,7 @@ struct velocity_context {
 #define PHYID_VT3216_64BIT  0x000FC600UL
 #define PHYID_MARVELL_1000  0x01410C50UL
 #define PHYID_MARVELL_1000S 0x01410C40UL
-
+#define PHYID_ICPLUS_IP101A 0x02430C54UL
 #define PHYID_REV_ID_MASK   0x0000000FUL
 
 #define PHYID_GET_PHY_ID(i)         ((i) & ~PHYID_REV_ID_MASK)
@@ -1437,6 +1437,7 @@ struct velocity_info {
 	struct device *dev;
 	struct pci_dev *pdev;
 	struct net_device *netdev;
+	int no_eeprom;
 
 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 	u8 ip_addr[4];
-- 
cgit v0.10.2


From 1ca2983aaa01233dc1ea63ef1b483678fcece6c8 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Mon, 20 May 2013 01:05:12 +0000
Subject: xen-netfront: avoid leaking resources when setup_netfront fails

We should correctly free related resources (grant ref, memory page, evtchn)
when setup_netfront fails.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 1db10141..5770e3b 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1532,40 +1532,49 @@ static int setup_netfront(struct xenbus_device *dev, struct netfront_info *info)
 	FRONT_RING_INIT(&info->tx, txs, PAGE_SIZE);
 
 	err = xenbus_grant_ring(dev, virt_to_mfn(txs));
-	if (err < 0) {
-		free_page((unsigned long)txs);
-		goto fail;
-	}
+	if (err < 0)
+		goto grant_tx_ring_fail;
 
 	info->tx_ring_ref = err;
 	rxs = (struct xen_netif_rx_sring *)get_zeroed_page(GFP_NOIO | __GFP_HIGH);
 	if (!rxs) {
 		err = -ENOMEM;
 		xenbus_dev_fatal(dev, err, "allocating rx ring page");
-		goto fail;
+		goto alloc_rx_ring_fail;
 	}
 	SHARED_RING_INIT(rxs);
 	FRONT_RING_INIT(&info->rx, rxs, PAGE_SIZE);
 
 	err = xenbus_grant_ring(dev, virt_to_mfn(rxs));
-	if (err < 0) {
-		free_page((unsigned long)rxs);
-		goto fail;
-	}
+	if (err < 0)
+		goto grant_rx_ring_fail;
 	info->rx_ring_ref = err;
 
 	err = xenbus_alloc_evtchn(dev, &info->evtchn);
 	if (err)
-		goto fail;
+		goto alloc_evtchn_fail;
 
 	err = bind_evtchn_to_irqhandler(info->evtchn, xennet_interrupt,
 					0, netdev->name, netdev);
 	if (err < 0)
-		goto fail;
+		goto bind_fail;
 	netdev->irq = err;
 	return 0;
 
- fail:
+	/* If we fail to setup netfront, it is safe to just revoke access to
+	 * granted pages because backend is not accessing it at this point.
+	 */
+bind_fail:
+	xenbus_free_evtchn(dev, info->evtchn);
+alloc_evtchn_fail:
+	gnttab_end_foreign_access_ref(info->rx_ring_ref, 0);
+grant_rx_ring_fail:
+	free_page((unsigned long)rxs);
+alloc_rx_ring_fail:
+	gnttab_end_foreign_access_ref(info->tx_ring_ref, 0);
+grant_tx_ring_fail:
+	free_page((unsigned long)txs);
+fail:
 	return err;
 }
 
-- 
cgit v0.10.2


From 4a5bddf7ea6b6c5916eccbc2fa1950555073ff48 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 20 May 2013 03:06:17 +0000
Subject: fec: Let device core handle pinctrl

Since commit ab78029 (drivers/pinctrl: grab default handles from device core)
we can rely on device core for handling pinctrl, so remove
devm_pinctrl_get_select_default() from the driver.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index ca9825c..2f4b3e0 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -53,7 +53,6 @@
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
 #include <linux/of_net.h>
-#include <linux/pinctrl/consumer.h>
 #include <linux/regulator/consumer.h>
 
 #include <asm/cacheflush.h>
@@ -1841,7 +1840,6 @@ fec_probe(struct platform_device *pdev)
 	struct resource *r;
 	const struct of_device_id *of_id;
 	static int dev_id;
-	struct pinctrl *pinctrl;
 	struct regulator *reg_phy;
 
 	of_id = of_match_device(fec_dt_ids, &pdev->dev);
@@ -1891,12 +1889,6 @@ fec_probe(struct platform_device *pdev)
 		fep->phy_interface = ret;
 	}
 
-	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
-	if (IS_ERR(pinctrl)) {
-		ret = PTR_ERR(pinctrl);
-		goto failed_pin;
-	}
-
 	fep->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(fep->clk_ipg)) {
 		ret = PTR_ERR(fep->clk_ipg);
@@ -1996,7 +1988,6 @@ failed_regulator:
 	clk_disable_unprepare(fep->clk_ipg);
 	clk_disable_unprepare(fep->clk_enet_out);
 	clk_disable_unprepare(fep->clk_ptp);
-failed_pin:
 failed_clk:
 failed_ioremap:
 	free_netdev(ndev);
-- 
cgit v0.10.2


From 99bbc70741903c063b3ccad90a3e06fc55df9245 Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Mon, 20 May 2013 04:02:32 +0000
Subject: rps: selective flow shedding during softnet overflow

A cpu executing the network receive path sheds packets when its input
queue grows to netdev_max_backlog. A single high rate flow (such as a
spoofed source DoS) can exceed a single cpu processing rate and will
degrade throughput of other flows hashed onto the same cpu.

This patch adds a more fine grained hashtable. If the netdev backlog
is above a threshold, IRQ cpus track the ratio of total traffic of
each flow (using 4096 buckets, configurable). The ratio is measured
by counting the number of packets per flow over the last 256 packets
from the source cpu. Any flow that occupies a large fraction of this
(set at 50%) will see packet drop while above the threshold.

Tested:
Setup is a muli-threaded UDP echo server with network rx IRQ on cpu0,
kernel receive (RPS) on cpu0 and application threads on cpus 2--7
each handling 20k req/s. Throughput halves when hit with a 400 kpps
antagonist storm. With this patch applied, antagonist overload is
dropped and the server processes its complete load.

The patch is effective when kernel receive processing is the
bottleneck. The above RPS scenario is a extreme, but the same is
reached with RFS and sufficient kernel processing (iptables, packet
socket tap, ..).

Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a94a5a0..7dd535d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1778,6 +1778,19 @@ static inline int unregister_gifconf(unsigned int family)
 	return register_gifconf(family, NULL);
 }
 
+#ifdef CONFIG_NET_FLOW_LIMIT
+#define FLOW_LIMIT_HISTORY	(1 << 8)	/* must be ^2 */
+struct sd_flow_limit {
+	u64			count;
+	unsigned int		num_buckets;
+	unsigned int		history_head;
+	u16			history[FLOW_LIMIT_HISTORY];
+	u8			buckets[];
+};
+
+extern int netdev_flow_limit_table_len;
+#endif /* CONFIG_NET_FLOW_LIMIT */
+
 /*
  * Incoming packets are placed on per-cpu queues
  */
@@ -1807,6 +1820,10 @@ struct softnet_data {
 	unsigned int		dropped;
 	struct sk_buff_head	input_pkt_queue;
 	struct napi_struct	backlog;
+
+#ifdef CONFIG_NET_FLOW_LIMIT
+	struct sd_flow_limit	*flow_limit;
+#endif
 };
 
 static inline void input_queue_head_incr(struct softnet_data *sd)
diff --git a/net/Kconfig b/net/Kconfig
index 2ddc904..08de901 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -259,6 +259,18 @@ config BPF_JIT
 	  packet sniffing (libpcap/tcpdump). Note : Admin should enable
 	  this feature changing /proc/sys/net/core/bpf_jit_enable
 
+config NET_FLOW_LIMIT
+	boolean
+	depends on RPS
+	default y
+	---help---
+	  The network stack has to drop packets when a receive processing CPU's
+	  backlog reaches netdev_max_backlog. If a few out of many active flows
+	  generate the vast majority of load, drop their traffic earlier to
+	  maintain capacity for the other flows. This feature provides servers
+	  with many clients some protection against DoS by a single (spoofed)
+	  flow that greatly exceeds average workload.
+
 menu "Network testing"
 
 config NET_PKTGEN
diff --git a/net/core/dev.c b/net/core/dev.c
index 18e9730..7229bc3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3064,6 +3064,46 @@ static int rps_ipi_queued(struct softnet_data *sd)
 	return 0;
 }
 
+#ifdef CONFIG_NET_FLOW_LIMIT
+int netdev_flow_limit_table_len __read_mostly = (1 << 12);
+#endif
+
+static bool skb_flow_limit(struct sk_buff *skb, unsigned int qlen)
+{
+#ifdef CONFIG_NET_FLOW_LIMIT
+	struct sd_flow_limit *fl;
+	struct softnet_data *sd;
+	unsigned int old_flow, new_flow;
+
+	if (qlen < (netdev_max_backlog >> 1))
+		return false;
+
+	sd = &__get_cpu_var(softnet_data);
+
+	rcu_read_lock();
+	fl = rcu_dereference(sd->flow_limit);
+	if (fl) {
+		new_flow = skb_get_rxhash(skb) & (fl->num_buckets - 1);
+		old_flow = fl->history[fl->history_head];
+		fl->history[fl->history_head] = new_flow;
+
+		fl->history_head++;
+		fl->history_head &= FLOW_LIMIT_HISTORY - 1;
+
+		if (likely(fl->buckets[old_flow]))
+			fl->buckets[old_flow]--;
+
+		if (++fl->buckets[new_flow] > (FLOW_LIMIT_HISTORY >> 1)) {
+			fl->count++;
+			rcu_read_unlock();
+			return true;
+		}
+	}
+	rcu_read_unlock();
+#endif
+	return false;
+}
+
 /*
  * enqueue_to_backlog is called to queue an skb to a per CPU backlog
  * queue (may be a remote CPU queue).
@@ -3073,13 +3113,15 @@ static int enqueue_to_backlog(struct sk_buff *skb, int cpu,
 {
 	struct softnet_data *sd;
 	unsigned long flags;
+	unsigned int qlen;
 
 	sd = &per_cpu(softnet_data, cpu);
 
 	local_irq_save(flags);
 
 	rps_lock(sd);
-	if (skb_queue_len(&sd->input_pkt_queue) <= netdev_max_backlog) {
+	qlen = skb_queue_len(&sd->input_pkt_queue);
+	if (qlen <= netdev_max_backlog && !skb_flow_limit(skb, qlen)) {
 		if (skb_queue_len(&sd->input_pkt_queue)) {
 enqueue:
 			__skb_queue_tail(&sd->input_pkt_queue, skb);
@@ -6269,6 +6311,10 @@ static int __init net_dev_init(void)
 		sd->backlog.weight = weight_p;
 		sd->backlog.gro_list = NULL;
 		sd->backlog.gro_count = 0;
+
+#ifdef CONFIG_NET_FLOW_LIMIT
+		sd->flow_limit = NULL;
+#endif
 	}
 
 	dev_boot_phase = 0;
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index 569d355..2bf8329 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -146,11 +146,23 @@ static void softnet_seq_stop(struct seq_file *seq, void *v)
 static int softnet_seq_show(struct seq_file *seq, void *v)
 {
 	struct softnet_data *sd = v;
+	unsigned int flow_limit_count = 0;
 
-	seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
+#ifdef CONFIG_NET_FLOW_LIMIT
+	struct sd_flow_limit *fl;
+
+	rcu_read_lock();
+	fl = rcu_dereference(sd->flow_limit);
+	if (fl)
+		flow_limit_count = fl->count;
+	rcu_read_unlock();
+#endif
+
+	seq_printf(seq,
+		   "%08x %08x %08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
 		   sd->processed, sd->dropped, sd->time_squeeze, 0,
 		   0, 0, 0, 0, /* was fastroute */
-		   sd->cpu_collision, sd->received_rps);
+		   sd->cpu_collision, sd->received_rps, flow_limit_count);
 	return 0;
 }
 
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index cfdb46a..741db5fc 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -87,6 +87,96 @@ static int rps_sock_flow_sysctl(ctl_table *table, int write,
 }
 #endif /* CONFIG_RPS */
 
+#ifdef CONFIG_NET_FLOW_LIMIT
+static DEFINE_MUTEX(flow_limit_update_mutex);
+
+static int flow_limit_cpu_sysctl(ctl_table *table, int write,
+				 void __user *buffer, size_t *lenp,
+				 loff_t *ppos)
+{
+	struct sd_flow_limit *cur;
+	struct softnet_data *sd;
+	cpumask_var_t mask;
+	int i, len, ret = 0;
+
+	if (!alloc_cpumask_var(&mask, GFP_KERNEL))
+		return -ENOMEM;
+
+	if (write) {
+		ret = cpumask_parse_user(buffer, *lenp, mask);
+		if (ret)
+			goto done;
+
+		mutex_lock(&flow_limit_update_mutex);
+		len = sizeof(*cur) + netdev_flow_limit_table_len;
+		for_each_possible_cpu(i) {
+			sd = &per_cpu(softnet_data, i);
+			cur = rcu_dereference_protected(sd->flow_limit,
+				     lockdep_is_held(&flow_limit_update_mutex));
+			if (cur && !cpumask_test_cpu(i, mask)) {
+				RCU_INIT_POINTER(sd->flow_limit, NULL);
+				synchronize_rcu();
+				kfree(cur);
+			} else if (!cur && cpumask_test_cpu(i, mask)) {
+				cur = kzalloc(len, GFP_KERNEL);
+				if (!cur) {
+					/* not unwinding previous changes */
+					ret = -ENOMEM;
+					goto write_unlock;
+				}
+				cur->num_buckets = netdev_flow_limit_table_len;
+				rcu_assign_pointer(sd->flow_limit, cur);
+			}
+		}
+write_unlock:
+		mutex_unlock(&flow_limit_update_mutex);
+	} else {
+		if (*ppos || !*lenp) {
+			*lenp = 0;
+			goto done;
+		}
+
+		cpumask_clear(mask);
+		rcu_read_lock();
+		for_each_possible_cpu(i) {
+			sd = &per_cpu(softnet_data, i);
+			if (rcu_dereference(sd->flow_limit))
+				cpumask_set_cpu(i, mask);
+		}
+		rcu_read_unlock();
+
+		len = cpumask_scnprintf(buffer, *lenp, mask);
+		*lenp = len + 1;
+		*ppos += len + 1;
+	}
+
+done:
+	free_cpumask_var(mask);
+	return ret;
+}
+
+static int flow_limit_table_len_sysctl(ctl_table *table, int write,
+				       void __user *buffer, size_t *lenp,
+				       loff_t *ppos)
+{
+	unsigned int old, *ptr;
+	int ret;
+
+	mutex_lock(&flow_limit_update_mutex);
+
+	ptr = table->data;
+	old = *ptr;
+	ret = proc_dointvec(table, write, buffer, lenp, ppos);
+	if (!ret && write && !is_power_of_2(*ptr)) {
+		*ptr = old;
+		ret = -EINVAL;
+	}
+
+	mutex_unlock(&flow_limit_update_mutex);
+	return ret;
+}
+#endif /* CONFIG_NET_FLOW_LIMIT */
+
 static struct ctl_table net_core_table[] = {
 #ifdef CONFIG_NET
 	{
@@ -180,6 +270,20 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= rps_sock_flow_sysctl
 	},
 #endif
+#ifdef CONFIG_NET_FLOW_LIMIT
+	{
+		.procname	= "flow_limit_cpu_bitmap",
+		.mode		= 0644,
+		.proc_handler	= flow_limit_cpu_sysctl
+	},
+	{
+		.procname	= "flow_limit_table_len",
+		.data		= &netdev_flow_limit_table_len,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= flow_limit_table_len_sysctl
+	},
+#endif /* CONFIG_NET_FLOW_LIMIT */
 #endif /* CONFIG_NET */
 	{
 		.procname	= "netdev_budget",
-- 
cgit v0.10.2


From 168fc21a971e4bc821a7838ccc39b7bdaf316c11 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 20 May 2013 04:53:38 +0000
Subject: net: ipv6: remove 'next' member from inet6_dev

The next pointer within the inet6_dev structure seems not to be used
anywhere. So just remove it. Tested with allmodconfig on x86_64.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 0727d0e..e07feb4 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -193,7 +193,6 @@ struct inet6_dev {
 	struct in6_addr		token;
 
 	struct neigh_parms	*nd_parms;
-	struct inet6_dev	*next;
 	struct ipv6_devconf	cnf;
 	struct ipv6_devstat	stats;
 	unsigned long		tstamp; /* ipv6InterfaceTable update timestamp */
-- 
cgit v0.10.2


From 71cea17ed39fdf1c0634f530ddc6a2c2fc601c2b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 20 May 2013 06:52:26 +0000
Subject: tcp: md5: remove spinlock usage in fast path

TCP md5 code uses per cpu variables but protects access to them with
a shared spinlock, which is a contention point.

[ tcp_md5sig_pool_lock is locked twice per incoming packet ]

Makes things much simpler, by allocating crypto structures once, first
time a socket needs md5 keys, and not deallocating them as they are
really small.

Next step would be to allow crypto allocations being done in a NUMA
aware way.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index e1c3723..bf1cc3d 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1283,11 +1283,13 @@ static inline struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
 #define tcp_twsk_md5_key(twsk)	NULL
 #endif
 
-extern struct tcp_md5sig_pool __percpu *tcp_alloc_md5sig_pool(struct sock *);
-extern void tcp_free_md5sig_pool(void);
+extern bool tcp_alloc_md5sig_pool(void);
 
 extern struct tcp_md5sig_pool	*tcp_get_md5sig_pool(void);
-extern void tcp_put_md5sig_pool(void);
+static inline void tcp_put_md5sig_pool(void)
+{
+	local_bh_enable();
+}
 
 extern int tcp_md5_hash_header(struct tcp_md5sig_pool *, const struct tcphdr *);
 extern int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff *,
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index dcb116d..53d9c12 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3095,9 +3095,8 @@ int tcp_gro_complete(struct sk_buff *skb)
 EXPORT_SYMBOL(tcp_gro_complete);
 
 #ifdef CONFIG_TCP_MD5SIG
-static unsigned long tcp_md5sig_users;
-static struct tcp_md5sig_pool __percpu *tcp_md5sig_pool;
-static DEFINE_SPINLOCK(tcp_md5sig_pool_lock);
+static struct tcp_md5sig_pool __percpu *tcp_md5sig_pool __read_mostly;
+static DEFINE_MUTEX(tcp_md5sig_mutex);
 
 static void __tcp_free_md5sig_pool(struct tcp_md5sig_pool __percpu *pool)
 {
@@ -3112,30 +3111,14 @@ static void __tcp_free_md5sig_pool(struct tcp_md5sig_pool __percpu *pool)
 	free_percpu(pool);
 }
 
-void tcp_free_md5sig_pool(void)
-{
-	struct tcp_md5sig_pool __percpu *pool = NULL;
-
-	spin_lock_bh(&tcp_md5sig_pool_lock);
-	if (--tcp_md5sig_users == 0) {
-		pool = tcp_md5sig_pool;
-		tcp_md5sig_pool = NULL;
-	}
-	spin_unlock_bh(&tcp_md5sig_pool_lock);
-	if (pool)
-		__tcp_free_md5sig_pool(pool);
-}
-EXPORT_SYMBOL(tcp_free_md5sig_pool);
-
-static struct tcp_md5sig_pool __percpu *
-__tcp_alloc_md5sig_pool(struct sock *sk)
+static void __tcp_alloc_md5sig_pool(void)
 {
 	int cpu;
 	struct tcp_md5sig_pool __percpu *pool;
 
 	pool = alloc_percpu(struct tcp_md5sig_pool);
 	if (!pool)
-		return NULL;
+		return;
 
 	for_each_possible_cpu(cpu) {
 		struct crypto_hash *hash;
@@ -3146,53 +3129,27 @@ __tcp_alloc_md5sig_pool(struct sock *sk)
 
 		per_cpu_ptr(pool, cpu)->md5_desc.tfm = hash;
 	}
-	return pool;
+	/* before setting tcp_md5sig_pool, we must commit all writes
+	 * to memory. See ACCESS_ONCE() in tcp_get_md5sig_pool()
+	 */
+	smp_wmb();
+	tcp_md5sig_pool = pool;
+	return;
 out_free:
 	__tcp_free_md5sig_pool(pool);
-	return NULL;
 }
 
-struct tcp_md5sig_pool __percpu *tcp_alloc_md5sig_pool(struct sock *sk)
+bool tcp_alloc_md5sig_pool(void)
 {
-	struct tcp_md5sig_pool __percpu *pool;
-	bool alloc = false;
-
-retry:
-	spin_lock_bh(&tcp_md5sig_pool_lock);
-	pool = tcp_md5sig_pool;
-	if (tcp_md5sig_users++ == 0) {
-		alloc = true;
-		spin_unlock_bh(&tcp_md5sig_pool_lock);
-	} else if (!pool) {
-		tcp_md5sig_users--;
-		spin_unlock_bh(&tcp_md5sig_pool_lock);
-		cpu_relax();
-		goto retry;
-	} else
-		spin_unlock_bh(&tcp_md5sig_pool_lock);
-
-	if (alloc) {
-		/* we cannot hold spinlock here because this may sleep. */
-		struct tcp_md5sig_pool __percpu *p;
-
-		p = __tcp_alloc_md5sig_pool(sk);
-		spin_lock_bh(&tcp_md5sig_pool_lock);
-		if (!p) {
-			tcp_md5sig_users--;
-			spin_unlock_bh(&tcp_md5sig_pool_lock);
-			return NULL;
-		}
-		pool = tcp_md5sig_pool;
-		if (pool) {
-			/* oops, it has already been assigned. */
-			spin_unlock_bh(&tcp_md5sig_pool_lock);
-			__tcp_free_md5sig_pool(p);
-		} else {
-			tcp_md5sig_pool = pool = p;
-			spin_unlock_bh(&tcp_md5sig_pool_lock);
-		}
+	if (unlikely(!tcp_md5sig_pool)) {
+		mutex_lock(&tcp_md5sig_mutex);
+
+		if (!tcp_md5sig_pool)
+			__tcp_alloc_md5sig_pool();
+
+		mutex_unlock(&tcp_md5sig_mutex);
 	}
-	return pool;
+	return tcp_md5sig_pool != NULL;
 }
 EXPORT_SYMBOL(tcp_alloc_md5sig_pool);
 
@@ -3209,28 +3166,15 @@ struct tcp_md5sig_pool *tcp_get_md5sig_pool(void)
 	struct tcp_md5sig_pool __percpu *p;
 
 	local_bh_disable();
-
-	spin_lock(&tcp_md5sig_pool_lock);
-	p = tcp_md5sig_pool;
-	if (p)
-		tcp_md5sig_users++;
-	spin_unlock(&tcp_md5sig_pool_lock);
-
+	p = ACCESS_ONCE(tcp_md5sig_pool);
 	if (p)
-		return this_cpu_ptr(p);
+		return __this_cpu_ptr(p);
 
 	local_bh_enable();
 	return NULL;
 }
 EXPORT_SYMBOL(tcp_get_md5sig_pool);
 
-void tcp_put_md5sig_pool(void)
-{
-	local_bh_enable();
-	tcp_free_md5sig_pool();
-}
-EXPORT_SYMBOL(tcp_put_md5sig_pool);
-
 int tcp_md5_hash_header(struct tcp_md5sig_pool *hp,
 			const struct tcphdr *th)
 {
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 7196523..d20ede0 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1026,7 +1026,7 @@ int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr,
 	key = sock_kmalloc(sk, sizeof(*key), gfp);
 	if (!key)
 		return -ENOMEM;
-	if (hlist_empty(&md5sig->head) && !tcp_alloc_md5sig_pool(sk)) {
+	if (!tcp_alloc_md5sig_pool()) {
 		sock_kfree_s(sk, key, sizeof(*key));
 		return -ENOMEM;
 	}
@@ -1044,9 +1044,7 @@ EXPORT_SYMBOL(tcp_md5_do_add);
 
 int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr, int family)
 {
-	struct tcp_sock *tp = tcp_sk(sk);
 	struct tcp_md5sig_key *key;
-	struct tcp_md5sig_info *md5sig;
 
 	key = tcp_md5_do_lookup(sk, (union tcp_md5_addr *)&addr, AF_INET);
 	if (!key)
@@ -1054,10 +1052,6 @@ int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr, int family)
 	hlist_del_rcu(&key->node);
 	atomic_sub(sizeof(*key), &sk->sk_omem_alloc);
 	kfree_rcu(key, rcu);
-	md5sig = rcu_dereference_protected(tp->md5sig_info,
-					   sock_owned_by_user(sk));
-	if (hlist_empty(&md5sig->head))
-		tcp_free_md5sig_pool();
 	return 0;
 }
 EXPORT_SYMBOL(tcp_md5_do_del);
@@ -1071,8 +1065,6 @@ static void tcp_clear_md5_list(struct sock *sk)
 
 	md5sig = rcu_dereference_protected(tp->md5sig_info, 1);
 
-	if (!hlist_empty(&md5sig->head))
-		tcp_free_md5sig_pool();
 	hlist_for_each_entry_safe(key, n, &md5sig->head, node) {
 		hlist_del_rcu(&key->node);
 		atomic_sub(sizeof(*key), &sk->sk_omem_alloc);
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 0f01788..ab1c086 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -317,7 +317,7 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
 			key = tp->af_specific->md5_lookup(sk, sk);
 			if (key != NULL) {
 				tcptw->tw_md5_key = kmemdup(key, sizeof(*key), GFP_ATOMIC);
-				if (tcptw->tw_md5_key && tcp_alloc_md5sig_pool(sk) == NULL)
+				if (tcptw->tw_md5_key && !tcp_alloc_md5sig_pool())
 					BUG();
 			}
 		} while (0);
@@ -358,10 +358,8 @@ void tcp_twsk_destructor(struct sock *sk)
 #ifdef CONFIG_TCP_MD5SIG
 	struct tcp_timewait_sock *twsk = tcp_twsk(sk);
 
-	if (twsk->tw_md5_key) {
-		tcp_free_md5sig_pool();
+	if (twsk->tw_md5_key)
 		kfree_rcu(twsk->tw_md5_key, rcu);
-	}
 #endif
 }
 EXPORT_SYMBOL_GPL(tcp_twsk_destructor);
-- 
cgit v0.10.2


From ed900ffb73e3ab154dff1ae20a2393f24da728df Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 20 May 2013 08:05:50 +0000
Subject: ppc: bpf_jit: can call module_free() from any context

Followup patch on module_free()/vfree() that takes care of the rest, so
no longer this workaround with work_struct is needed.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Matt Evans <matt@ozlabs.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index c427ae3..bf56e33 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -650,8 +650,7 @@ void bpf_jit_compile(struct sk_filter *fp)
 
 	proglen = cgctx.idx * 4;
 	alloclen = proglen + FUNCTION_DESCR_SIZE;
-	image = module_alloc(max_t(unsigned int, alloclen,
-				   sizeof(struct work_struct)));
+	image = module_alloc(alloclen);
 	if (!image)
 		goto out;
 
@@ -688,20 +687,8 @@ out:
 	return;
 }
 
-static void jit_free_defer(struct work_struct *arg)
-{
-	module_free(NULL, arg);
-}
-
-/* run from softirq, we must use a work_struct to call
- * module_free() from process context
- */
 void bpf_jit_free(struct sk_filter *fp)
 {
-	if (fp->bpf_func != sk_run_filter) {
-		struct work_struct *work = (struct work_struct *)fp->bpf_func;
-
-		INIT_WORK(work, jit_free_defer);
-		schedule_work(work);
-	}
+	if (fp->bpf_func != sk_run_filter)
+		module_free(NULL, fp->bpf_func);
 }
-- 
cgit v0.10.2


From aafc787e41fd8a4d3a4378b028d8d8f8d38d9bb6 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 20 May 2013 08:05:51 +0000
Subject: arm: bpf_jit: can call module_free() from any context

Follow-up on module_free()/vfree() that takes care of the rest, so no
longer this workaround with work_struct needed.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Mircea Gherzan <mgherzan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 1a643ee..f50d223 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -900,8 +900,7 @@ void bpf_jit_compile(struct sk_filter *fp)
 #endif
 
 	alloc_size = 4 * ctx.idx;
-	ctx.target = module_alloc(max(sizeof(struct work_struct),
-				      alloc_size));
+	ctx.target = module_alloc(alloc_size);
 	if (unlikely(ctx.target == NULL))
 		goto out;
 
@@ -927,19 +926,8 @@ out:
 	return;
 }
 
-static void bpf_jit_free_worker(struct work_struct *work)
-{
-	module_free(NULL, work);
-}
-
 void bpf_jit_free(struct sk_filter *fp)
 {
-	struct work_struct *work;
-
-	if (fp->bpf_func != sk_run_filter) {
-		work = (struct work_struct *)fp->bpf_func;
-
-		INIT_WORK(work, bpf_jit_free_worker);
-		schedule_work(work);
-	}
+	if (fp->bpf_func != sk_run_filter)
+		module_free(NULL, fp->bpf_func);
 }
-- 
cgit v0.10.2


From 0b8bf1baabe56f721d541953f083560d0660d78f Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 20 May 2013 09:16:58 +0000
Subject: net: dm9000: Allow instantiation using device tree

This patch adds Device Tree support to dm9000 driver.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Reviewed-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/davicom-dm9000.txt b/Documentation/devicetree/bindings/net/davicom-dm9000.txt
new file mode 100644
index 0000000..2d39c99
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/davicom-dm9000.txt
@@ -0,0 +1,26 @@
+Davicom DM9000 Fast Ethernet controller
+
+Required properties:
+- compatible = "davicom,dm9000";
+- reg : physical addresses and sizes of registers, must contain 2 entries:
+    first entry : address register,
+    second entry : data register.
+- interrupt-parent : interrupt controller to which the device is connected
+- interrupts : interrupt specifier specific to interrupt controller
+
+Optional properties:
+- local-mac-address : A bytestring of 6 bytes specifying Ethernet MAC address
+    to use (from firmware or bootloader)
+- davicom,no-eeprom : Configuration EEPROM is not available
+- davicom,ext-phy : Use external PHY
+
+Example:
+
+	ethernet@18000000 {
+		compatible = "davicom,dm9000";
+		reg = <0x18000000 0x2 0x18000004 0x2>;
+		interrupt-parent = <&gpn>;
+		interrupts = <7 4>;
+		local-mac-address = [00 00 de ad be ef];
+		davicom,no-eeprom;
+	};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 6931c43..2fe74e6 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -18,6 +18,7 @@ chrp	Common Hardware Reference Platform
 cirrus	Cirrus Logic, Inc.
 cortina	Cortina Systems, Inc.
 dallas	Maxim Integrated Products (formerly Dallas Semiconductor)
+davicom	DAVICOM Semiconductor, Inc.
 denx	Denx Software Engineering
 emmicro	EM Microelectronic
 epson	Seiko Epson Corp.
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index a2408c8..dd243a1 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -29,6 +29,8 @@
 #include <linux/spinlock.h>
 #include <linux/crc32.h>
 #include <linux/mii.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
 #include <linux/ethtool.h>
 #include <linux/dm9000.h>
 #include <linux/delay.h>
@@ -1351,6 +1353,31 @@ static const struct net_device_ops dm9000_netdev_ops = {
 #endif
 };
 
+static struct dm9000_plat_data *dm9000_parse_dt(struct device *dev)
+{
+	struct dm9000_plat_data *pdata;
+	struct device_node *np = dev->of_node;
+	const void *mac_addr;
+
+	if (!IS_ENABLED(CONFIG_OF) || !np)
+		return NULL;
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
+
+	if (of_find_property(np, "davicom,ext-phy", NULL))
+		pdata->flags |= DM9000_PLATF_EXT_PHY;
+	if (of_find_property(np, "davicom,no-eeprom", NULL))
+		pdata->flags |= DM9000_PLATF_NO_EEPROM;
+
+	mac_addr = of_get_mac_address(np);
+	if (mac_addr)
+		memcpy(pdata->dev_addr, mac_addr, sizeof(pdata->dev_addr));
+
+	return pdata;
+}
+
 /*
  * Search DM9000 board, allocate space and register it
  */
@@ -1366,6 +1393,12 @@ dm9000_probe(struct platform_device *pdev)
 	int i;
 	u32 id_val;
 
+	if (!pdata) {
+		pdata = dm9000_parse_dt(&pdev->dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
+	}
+
 	/* Init network device */
 	ndev = alloc_etherdev(sizeof(struct board_info));
 	if (!ndev)
@@ -1676,11 +1709,20 @@ dm9000_drv_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id dm9000_of_matches[] = {
+	{ .compatible = "davicom,dm9000", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, dm9000_of_matches);
+#endif
+
 static struct platform_driver dm9000_driver = {
 	.driver	= {
 		.name    = "dm9000",
 		.owner	 = THIS_MODULE,
 		.pm	 = &dm9000_drv_pm_ops,
+		.of_match_table = of_match_ptr(dm9000_of_matches),
 	},
 	.probe   = dm9000_probe,
 	.remove  = dm9000_drv_remove,
-- 
cgit v0.10.2


From 4b2305826ccd57a8b22d3daff543837ba27cfd43 Mon Sep 17 00:00:00 2001
From: Rasesh Mody <rmody@brocade.com>
Date: Mon, 20 May 2013 10:08:01 +0000
Subject: bna: Clear Driver Config Flags When HW Resets

Driver configuration flags are retained across open/stop operations preventing
configurations to be set in next open/stop. Setting MTU on a 1020 causes
network to fail until a reboot is performed on the host.

Clear the flags when configuration resets in hardware.

Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
index 07f7ef0..b78e69e 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.c
+++ b/drivers/net/ethernet/brocade/bna/bnad.c
@@ -2624,6 +2624,9 @@ bnad_stop(struct net_device *netdev)
 	bnad_destroy_tx(bnad, 0);
 	bnad_destroy_rx(bnad, 0);
 
+	/* These config flags are cleared in the hardware */
+	bnad->cfg_flags &= ~(BNAD_CF_ALLMULTI | BNAD_CF_PROMISC);
+
 	/* Synchronize mailbox IRQ */
 	bnad_mbox_irq_sync(bnad);
 
-- 
cgit v0.10.2


From f489a4ba769ca1d7dd4657a4f68ea93746dd669b Mon Sep 17 00:00:00 2001
From: Rasesh Mody <rmody@brocade.com>
Date: Mon, 20 May 2013 10:08:02 +0000
Subject: bna: Fix Ucast Failure Handling

Failure of the UCAST set for base mac address fails when user configures a
duplicate mac address that matches that of another vNIC on the same port.
The bna does not handle the ucast failure and keeps this address in cache.
On disable of the vNIC, bna tries to delete the failed base mac address and the
fw asserts.

On failure of ucast address, mark ucast address set to false.

Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/brocade/bna/bna.h b/drivers/net/ethernet/brocade/bna/bna.h
index 25dae75..f1eafc4 100644
--- a/drivers/net/ethernet/brocade/bna/bna.h
+++ b/drivers/net/ethernet/brocade/bna/bna.h
@@ -455,6 +455,8 @@ void bna_bfi_rx_enet_stop_rsp(struct bna_rx *rx,
 void bna_bfi_rxf_cfg_rsp(struct bna_rxf *rxf, struct bfi_msgq_mhdr *msghdr);
 void bna_bfi_rxf_mcast_add_rsp(struct bna_rxf *rxf,
 			       struct bfi_msgq_mhdr *msghdr);
+void bna_bfi_rxf_ucast_set_rsp(struct bna_rxf *rxf,
+			       struct bfi_msgq_mhdr *msghdr);
 
 /* APIs for BNA */
 void bna_rx_mod_init(struct bna_rx_mod *rx_mod, struct bna *bna,
diff --git a/drivers/net/ethernet/brocade/bna/bna_enet.c b/drivers/net/ethernet/brocade/bna/bna_enet.c
index db14f69..3ca77fa 100644
--- a/drivers/net/ethernet/brocade/bna/bna_enet.c
+++ b/drivers/net/ethernet/brocade/bna/bna_enet.c
@@ -298,7 +298,6 @@ bna_msgq_rsp_handler(void *arg, struct bfi_msgq_mhdr *msghdr)
 	case BFI_ENET_I2H_RSS_ENABLE_RSP:
 	case BFI_ENET_I2H_RX_PROMISCUOUS_RSP:
 	case BFI_ENET_I2H_RX_DEFAULT_RSP:
-	case BFI_ENET_I2H_MAC_UCAST_SET_RSP:
 	case BFI_ENET_I2H_MAC_UCAST_CLR_RSP:
 	case BFI_ENET_I2H_MAC_UCAST_ADD_RSP:
 	case BFI_ENET_I2H_MAC_UCAST_DEL_RSP:
@@ -311,6 +310,12 @@ bna_msgq_rsp_handler(void *arg, struct bfi_msgq_mhdr *msghdr)
 			bna_bfi_rxf_cfg_rsp(&rx->rxf, msghdr);
 		break;
 
+	case BFI_ENET_I2H_MAC_UCAST_SET_RSP:
+		bna_rx_from_rid(bna, msghdr->enet_id, rx);
+		if (rx)
+			bna_bfi_rxf_ucast_set_rsp(&rx->rxf, msghdr);
+		break;
+
 	case BFI_ENET_I2H_MAC_MCAST_ADD_RSP:
 		bna_rx_from_rid(bna, msghdr->enet_id, rx);
 		if (rx)
diff --git a/drivers/net/ethernet/brocade/bna/bna_tx_rx.c b/drivers/net/ethernet/brocade/bna/bna_tx_rx.c
index ea6f4a0..57cd1bf 100644
--- a/drivers/net/ethernet/brocade/bna/bna_tx_rx.c
+++ b/drivers/net/ethernet/brocade/bna/bna_tx_rx.c
@@ -711,6 +711,21 @@ bna_bfi_rxf_cfg_rsp(struct bna_rxf *rxf, struct bfi_msgq_mhdr *msghdr)
 }
 
 void
+bna_bfi_rxf_ucast_set_rsp(struct bna_rxf *rxf,
+			struct bfi_msgq_mhdr *msghdr)
+{
+	struct bfi_enet_rsp *rsp =
+		(struct bfi_enet_rsp *)msghdr;
+
+	if (rsp->error) {
+		/* Clear ucast from cache */
+		rxf->ucast_active_set = 0;
+	}
+
+	bfa_fsm_send_event(rxf, RXF_E_FW_RESP);
+}
+
+void
 bna_bfi_rxf_mcast_add_rsp(struct bna_rxf *rxf,
 			struct bfi_msgq_mhdr *msghdr)
 {
-- 
cgit v0.10.2


From 43c07adaebc34d8c23cdc60128fc7f41088515f7 Mon Sep 17 00:00:00 2001
From: Rasesh Mody <rmody@brocade.com>
Date: Mon, 20 May 2013 10:08:03 +0000
Subject: bna: Enahncement to Identify Default IOC Function

User should not be allowed to delete base function of eth port. Add a new field
to the bfa ioc attributes structure to indicate if the given ioc is default
function on the port or not.

Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/brocade/bna/bfa_defs.h b/drivers/net/ethernet/brocade/bna/bfa_defs.h
index e423f82..b7d8127 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_defs.h
+++ b/drivers/net/ethernet/brocade/bna/bfa_defs.h
@@ -164,7 +164,8 @@ struct bfa_ioc_attr {
 	u8				port_mode;	/*!< enum bfa_mode */
 	u8				cap_bm;		/*!< capability */
 	u8				port_mode_cfg;	/*!< enum bfa_mode */
-	u8				rsvd[4];	/*!< 64bit align */
+	u8				def_fn;		/*!< 1 if default fn */
+	u8				rsvd[3];	/*!< 64bit align */
 };
 
 /* Adapter capability mask definition */
diff --git a/drivers/net/ethernet/brocade/bna/bfa_ioc.c b/drivers/net/ethernet/brocade/bna/bfa_ioc.c
index f2b73ff..6f3cac0 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_ioc.c
+++ b/drivers/net/ethernet/brocade/bna/bfa_ioc.c
@@ -2371,7 +2371,7 @@ bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr)
 	memset((void *)ioc_attr, 0, sizeof(struct bfa_ioc_attr));
 
 	ioc_attr->state = bfa_ioc_get_state(ioc);
-	ioc_attr->port_id = ioc->port_id;
+	ioc_attr->port_id = bfa_ioc_portid(ioc);
 	ioc_attr->port_mode = ioc->port_mode;
 
 	ioc_attr->port_mode_cfg = ioc->port_mode_cfg;
@@ -2381,8 +2381,9 @@ bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr)
 
 	bfa_ioc_get_adapter_attr(ioc, &ioc_attr->adapter_attr);
 
-	ioc_attr->pci_attr.device_id = ioc->pcidev.device_id;
-	ioc_attr->pci_attr.pcifn = ioc->pcidev.pci_func;
+	ioc_attr->pci_attr.device_id = bfa_ioc_devid(ioc);
+	ioc_attr->pci_attr.pcifn = bfa_ioc_pcifn(ioc);
+	ioc_attr->def_fn = bfa_ioc_is_default(ioc);
 	bfa_ioc_get_pci_chip_rev(ioc, ioc_attr->pci_attr.chip_rev);
 }
 
diff --git a/drivers/net/ethernet/brocade/bna/bfa_ioc.h b/drivers/net/ethernet/brocade/bna/bfa_ioc.h
index 63a85e5..f04e0aa 100644
--- a/drivers/net/ethernet/brocade/bna/bfa_ioc.h
+++ b/drivers/net/ethernet/brocade/bna/bfa_ioc.h
@@ -222,6 +222,8 @@ struct bfa_ioc_hwif {
 #define bfa_ioc_bar0(__ioc)		((__ioc)->pcidev.pci_bar_kva)
 #define bfa_ioc_portid(__ioc)		((__ioc)->port_id)
 #define bfa_ioc_asic_gen(__ioc)		((__ioc)->asic_gen)
+#define bfa_ioc_is_default(__ioc)	\
+	(bfa_ioc_pcifn(__ioc) == bfa_ioc_portid(__ioc))
 #define bfa_ioc_fetch_stats(__ioc, __stats) \
 		(((__stats)->drv_stats) = (__ioc)->stats)
 #define bfa_ioc_clr_stats(__ioc)	\
-- 
cgit v0.10.2


From 45e983414334f217c60bd04d39d6f5ec2d8d7bb4 Mon Sep 17 00:00:00 2001
From: Rasesh Mody <rmody@brocade.com>
Date: Mon, 20 May 2013 10:08:04 +0000
Subject: bna: Driver and Firmware Updated

Driver and Firmware versions updated to 3.2.21.1.

Signed-off-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h
index c1d0bc0..aefee77 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.h
+++ b/drivers/net/ethernet/brocade/bna/bnad.h
@@ -71,7 +71,7 @@ struct bnad_rx_ctrl {
 #define BNAD_NAME			"bna"
 #define BNAD_NAME_LEN			64
 
-#define BNAD_VERSION			"3.1.2.1"
+#define BNAD_VERSION			"3.2.21.1"
 
 #define BNAD_MAILBOX_MSIX_INDEX		0
 #define BNAD_MAILBOX_MSIX_VECTORS	1
diff --git a/drivers/net/ethernet/brocade/bna/cna.h b/drivers/net/ethernet/brocade/bna/cna.h
index 14ca931..c37f706 100644
--- a/drivers/net/ethernet/brocade/bna/cna.h
+++ b/drivers/net/ethernet/brocade/bna/cna.h
@@ -37,8 +37,8 @@
 
 extern char bfa_version[];
 
-#define CNA_FW_FILE_CT	"ctfw-3.1.0.0.bin"
-#define CNA_FW_FILE_CT2	"ct2fw-3.1.0.0.bin"
+#define CNA_FW_FILE_CT	"ctfw-3.2.1.0.bin"
+#define CNA_FW_FILE_CT2	"ct2fw-3.2.1.0.bin"
 #define FC_SYMNAME_MAX	256	/*!< max name server symbolic name size */
 
 #pragma pack(1)
-- 
cgit v0.10.2


From 2c7b49212a86f13697281a4dace2cb96aec71d6b Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Sun, 19 May 2013 22:53:42 +0000
Subject: phy: fix the use of PHY_IGNORE_INTERRUPT

When a PHY device is registered with the special IRQ value
PHY_IGNORE_INTERRUPT (-2) it will not properly be handled by the PHY
library:

- it continues to poll its register, while we do not want this
  because such PHY link events or register changes are serviced by an
  Ethernet MAC
- it will still try to configure PHY interrupts at the PHY level, such
  interrupts do not exist at the PHY but at the MAC level
- the state machine only handles PHY_POLL, but should also handle
  PHY_IGNORE_INTERRUPT similarly

This patch updates the PHY state machine and initialization paths to
account for the specific PHY_IGNORE_INTERRUPT. Based on an earlier patch
by Thomas Petazzoni, and reworked to add the missing bits. Add a helper
phy_interrupt_is_valid() which specifically tests for a PHY interrupt
not to be PHY_POLL or PHY_IGNORE_INTERRUPT and use it throughout the
code.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index c14f147..3bcf099 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -682,7 +682,7 @@ void phy_stop(struct phy_device *phydev)
 	if (PHY_HALTED == phydev->state)
 		goto out_unlock;
 
-	if (phydev->irq != PHY_POLL) {
+	if (phy_interrupt_is_valid(phydev)) {
 		/* Disable PHY Interrupts */
 		phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED);
 
@@ -828,8 +828,9 @@ void phy_state_machine(struct work_struct *work)
 			break;
 		case PHY_RUNNING:
 			/* Only register a CHANGE if we are
-			 * polling */
-			if (PHY_POLL == phydev->irq)
+			 * polling or ignoring interrupts
+			 */
+			if (!phy_interrupt_is_valid(phydev))
 				phydev->state = PHY_CHANGELINK;
 			break;
 		case PHY_CHANGELINK:
@@ -848,7 +849,7 @@ void phy_state_machine(struct work_struct *work)
 
 			phydev->adjust_link(phydev->attached_dev);
 
-			if (PHY_POLL != phydev->irq)
+			if (phy_interrupt_is_valid(phydev))
 				err = phy_config_interrupt(phydev,
 						PHY_INTERRUPT_ENABLED);
 			break;
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 3657b4a..8e29d22 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1009,8 +1009,11 @@ static int phy_probe(struct device *dev)
 	phydrv = to_phy_driver(drv);
 	phydev->drv = phydrv;
 
-	/* Disable the interrupt if the PHY doesn't support it */
-	if (!(phydrv->flags & PHY_HAS_INTERRUPT))
+	/* Disable the interrupt if the PHY doesn't support it
+	 * but the interrupt is still a valid one
+	 */
+	if (!(phydrv->flags & PHY_HAS_INTERRUPT) &&
+			phy_interrupt_is_valid(phydev))
 		phydev->irq = PHY_POLL;
 
 	mutex_lock(&phydev->lock);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 9e11039..8e4bc8a 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -508,6 +508,18 @@ static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
 	return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
 }
 
+/**
+ * phy_interrupt_is_valid - Convenience function for testing a given PHY irq
+ * @phydev: the phy_device struct
+ *
+ * NOTE: must be kept in sync with addition/removal of PHY_POLL and
+ * PHY_IGNORE_INTERRUPT
+ */
+static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
+{
+	return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
+}
+
 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
 		bool is_c45, struct phy_c45_device_ids *c45_ids);
 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
-- 
cgit v0.10.2


From 5ea94e7686a3aa04cc0d01a2d8bd3d0292b3f592 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Sun, 19 May 2013 22:53:43 +0000
Subject: phy: add phy_mac_interrupt() to use with PHY_IGNORE_INTERRUPT

There is currently no way for an Ethernet MAC driver servicing PHY link
interrupts to notify this to the PHY state machine without defining its
own state machine. Since most drivers are not so special, introduce a
helper: phy_mac_interrupt() which can be called from a link up/down
interrupt routine to update the PHY state machine. To avoid code
duplication some refactoring has been done to expose the workqueue and
its corresponding callback internally.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 3bcf099..2d28a0e 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -419,8 +419,6 @@ out_unlock:
 EXPORT_SYMBOL(phy_start_aneg);
 
 
-static void phy_change(struct work_struct *work);
-
 /**
  * phy_start_machine - start PHY state machine tracking
  * @phydev: the phy_device struct
@@ -565,8 +563,6 @@ int phy_start_interrupts(struct phy_device *phydev)
 {
 	int err = 0;
 
-	INIT_WORK(&phydev->phy_queue, phy_change);
-
 	atomic_set(&phydev->irq_disable, 0);
 	if (request_irq(phydev->irq, phy_interrupt,
 				IRQF_SHARED,
@@ -623,7 +619,7 @@ EXPORT_SYMBOL(phy_stop_interrupts);
  * phy_change - Scheduled by the phy_interrupt/timer to handle PHY changes
  * @work: work_struct that describes the work to be done
  */
-static void phy_change(struct work_struct *work)
+void phy_change(struct work_struct *work)
 {
 	int err;
 	struct phy_device *phydev =
@@ -922,6 +918,14 @@ void phy_state_machine(struct work_struct *work)
 	schedule_delayed_work(&phydev->state_queue, PHY_STATE_TIME * HZ);
 }
 
+void phy_mac_interrupt(struct phy_device *phydev, int new_link)
+{
+	cancel_work_sync(&phydev->phy_queue);
+	phydev->link = new_link;
+	schedule_work(&phydev->phy_queue);
+}
+EXPORT_SYMBOL(phy_mac_interrupt);
+
 static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
 				    int addr)
 {
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 8e29d22..b55aa33 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -189,6 +189,7 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
 
 	mutex_init(&dev->lock);
 	INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine);
+	INIT_WORK(&dev->phy_queue, phy_change);
 
 	/* Request the appropriate module unconditionally; don't
 	   bother trying to do so only if it isn't already loaded,
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 8e4bc8a..fdfa115 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -557,6 +557,8 @@ void phy_drivers_unregister(struct phy_driver *drv, int n);
 int phy_driver_register(struct phy_driver *new_driver);
 int phy_drivers_register(struct phy_driver *new_driver, int n);
 void phy_state_machine(struct work_struct *work);
+void phy_change(struct work_struct *work);
+void phy_mac_interrupt(struct phy_device *phydev, int new_link);
 void phy_start_machine(struct phy_device *phydev,
 		void (*handler)(struct net_device *));
 void phy_stop_machine(struct phy_device *phydev);
-- 
cgit v0.10.2


From e80bd1d181ff4601d88cf438817a3a7e84fe6912 Mon Sep 17 00:00:00 2001
From: Bruce Allan <bruce.w.allan@intel.com>
Date: Wed, 1 May 2013 01:19:46 +0000
Subject: e1000e: cleanup whitespace

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/e1000e/80003es2lan.c b/drivers/net/ethernet/intel/e1000e/80003es2lan.c
index b71c850..895450e 100644
--- a/drivers/net/ethernet/intel/e1000e/80003es2lan.c
+++ b/drivers/net/ethernet/intel/e1000e/80003es2lan.c
@@ -66,17 +66,17 @@ static s32 e1000_init_phy_params_80003es2lan(struct e1000_hw *hw)
 	s32 ret_val;
 
 	if (hw->phy.media_type != e1000_media_type_copper) {
-		phy->type	= e1000_phy_none;
+		phy->type = e1000_phy_none;
 		return 0;
 	} else {
 		phy->ops.power_up = e1000_power_up_phy_copper;
 		phy->ops.power_down = e1000_power_down_phy_copper_80003es2lan;
 	}
 
-	phy->addr		= 1;
-	phy->autoneg_mask	= AUTONEG_ADVERTISE_SPEED_DEFAULT;
-	phy->reset_delay_us      = 100;
-	phy->type		= e1000_phy_gg82563;
+	phy->addr = 1;
+	phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+	phy->reset_delay_us = 100;
+	phy->type = e1000_phy_gg82563;
 
 	/* This can only be done after all function pointers are setup. */
 	ret_val = e1000e_get_phy_id(hw);
@@ -98,19 +98,19 @@ static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
 	u32 eecd = er32(EECD);
 	u16 size;
 
-	nvm->opcode_bits	= 8;
-	nvm->delay_usec	 = 1;
+	nvm->opcode_bits = 8;
+	nvm->delay_usec = 1;
 	switch (nvm->override) {
 	case e1000_nvm_override_spi_large:
-		nvm->page_size    = 32;
+		nvm->page_size = 32;
 		nvm->address_bits = 16;
 		break;
 	case e1000_nvm_override_spi_small:
-		nvm->page_size    = 8;
+		nvm->page_size = 8;
 		nvm->address_bits = 8;
 		break;
 	default:
-		nvm->page_size    = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
+		nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
 		nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
 		break;
 	}
@@ -128,7 +128,7 @@ static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
 	/* EEPROM access above 16k is unsupported */
 	if (size > 14)
 		size = 14;
-	nvm->word_size	= 1 << size;
+	nvm->word_size = 1 << size;
 
 	return 0;
 }
@@ -859,7 +859,7 @@ static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw)
 
 	/* Transmit Arbitration Control 0 */
 	reg = er32(TARC(0));
-	reg &= ~(0xF << 27); /* 30:27 */
+	reg &= ~(0xF << 27);	/* 30:27 */
 	if (hw->phy.media_type != e1000_media_type_copper)
 		reg &= ~(1 << 20);
 	ew32(TARC(0), reg);
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c
index 7380442..bef2f10 100644
--- a/drivers/net/ethernet/intel/e1000e/82571.c
+++ b/drivers/net/ethernet/intel/e1000e/82571.c
@@ -77,24 +77,24 @@ static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
 		return 0;
 	}
 
-	phy->addr			 = 1;
-	phy->autoneg_mask		 = AUTONEG_ADVERTISE_SPEED_DEFAULT;
-	phy->reset_delay_us		 = 100;
+	phy->addr = 1;
+	phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+	phy->reset_delay_us = 100;
 
-	phy->ops.power_up		 = e1000_power_up_phy_copper;
-	phy->ops.power_down		 = e1000_power_down_phy_copper_82571;
+	phy->ops.power_up = e1000_power_up_phy_copper;
+	phy->ops.power_down = e1000_power_down_phy_copper_82571;
 
 	switch (hw->mac.type) {
 	case e1000_82571:
 	case e1000_82572:
-		phy->type		 = e1000_phy_igp_2;
+		phy->type = e1000_phy_igp_2;
 		break;
 	case e1000_82573:
-		phy->type		 = e1000_phy_m88;
+		phy->type = e1000_phy_m88;
 		break;
 	case e1000_82574:
 	case e1000_82583:
-		phy->type		 = e1000_phy_bm;
+		phy->type = e1000_phy_bm;
 		phy->ops.acquire = e1000_get_hw_semaphore_82574;
 		phy->ops.release = e1000_put_hw_semaphore_82574;
 		phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82574;
@@ -193,7 +193,7 @@ static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
 		/* EEPROM access above 16k is unsupported */
 		if (size > 14)
 			size = 14;
-		nvm->word_size	= 1 << size;
+		nvm->word_size = 1 << size;
 		break;
 	}
 
@@ -339,7 +339,7 @@ static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
 static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
 {
 	struct e1000_hw *hw = &adapter->hw;
-	static int global_quad_port_a; /* global port a indication */
+	static int global_quad_port_a;	/* global port a indication */
 	struct pci_dev *pdev = adapter->pdev;
 	int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
 	s32 rc;
@@ -1178,7 +1178,7 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
 
 	/* Transmit Arbitration Control 0 */
 	reg = er32(TARC(0));
-	reg &= ~(0xF << 27); /* 30:27 */
+	reg &= ~(0xF << 27);	/* 30:27 */
 	switch (hw->mac.type) {
 	case e1000_82571:
 	case e1000_82572:
@@ -1390,7 +1390,7 @@ bool e1000_check_phy_82574(struct e1000_hw *hw)
 	ret_val = e1e_rphy(hw, E1000_RECEIVE_ERROR_COUNTER, &receive_errors);
 	if (ret_val)
 		return false;
-	if (receive_errors == E1000_RECEIVE_ERROR_MAX)  {
+	if (receive_errors == E1000_RECEIVE_ERROR_MAX) {
 		ret_val = e1e_rphy(hw, E1000_BASE1000T_STATUS, &status_1kbt);
 		if (ret_val)
 			return false;
diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c
index 7c8ca65..59c22bf 100644
--- a/drivers/net/ethernet/intel/e1000e/ethtool.c
+++ b/drivers/net/ethernet/intel/e1000e/ethtool.c
@@ -244,7 +244,7 @@ static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
 		mac->autoneg = 1;
 		adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
 		break;
-	case SPEED_1000 + DUPLEX_HALF: /* not supported */
+	case SPEED_1000 + DUPLEX_HALF:	/* not supported */
 	default:
 		goto err_inval;
 	}
@@ -416,7 +416,7 @@ static void e1000_set_msglevel(struct net_device *netdev, u32 data)
 
 static int e1000_get_regs_len(struct net_device __always_unused *netdev)
 {
-#define E1000_REGS_LEN 32 /* overestimate */
+#define E1000_REGS_LEN 32	/* overestimate */
 	return E1000_REGS_LEN * sizeof(u32);
 }
 
@@ -433,22 +433,22 @@ static void e1000_get_regs(struct net_device *netdev,
 	regs->version = (1 << 24) | (adapter->pdev->revision << 16) |
 	    adapter->pdev->device;
 
-	regs_buff[0]  = er32(CTRL);
-	regs_buff[1]  = er32(STATUS);
+	regs_buff[0] = er32(CTRL);
+	regs_buff[1] = er32(STATUS);
 
-	regs_buff[2]  = er32(RCTL);
-	regs_buff[3]  = er32(RDLEN(0));
-	regs_buff[4]  = er32(RDH(0));
-	regs_buff[5]  = er32(RDT(0));
-	regs_buff[6]  = er32(RDTR);
+	regs_buff[2] = er32(RCTL);
+	regs_buff[3] = er32(RDLEN(0));
+	regs_buff[4] = er32(RDH(0));
+	regs_buff[5] = er32(RDT(0));
+	regs_buff[6] = er32(RDTR);
 
-	regs_buff[7]  = er32(TCTL);
-	regs_buff[8]  = er32(TDLEN(0));
-	regs_buff[9]  = er32(TDH(0));
+	regs_buff[7] = er32(TCTL);
+	regs_buff[8] = er32(TDLEN(0));
+	regs_buff[9] = er32(TDH(0));
 	regs_buff[10] = er32(TDT(0));
 	regs_buff[11] = er32(TIDV);
 
-	regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
+	regs_buff[12] = adapter->hw.phy.type;	/* PHY type (IGP=1, M88=0) */
 
 	/* ethtool doesn't use anything past this point, so all this
 	 * code is likely legacy junk for apps that may or may not exist
@@ -1379,7 +1379,7 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
 
 	if (hw->phy.media_type == e1000_media_type_copper &&
 	    hw->phy.type == e1000_phy_m88) {
-		ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
+		ctrl_reg |= E1000_CTRL_ILOS;	/* Invert Loss of Signal */
 	} else {
 		/* Set the ILOS bit on the fiber Nic if half duplex link is
 		 * detected.
@@ -1613,7 +1613,7 @@ static int e1000_run_loopback_test(struct e1000_adapter *adapter)
 		ew32(TDT(0), k);
 		e1e_flush();
 		msleep(200);
-		time = jiffies; /* set the start time for the receive */
+		time = jiffies;	/* set the start time for the receive */
 		good_cnt = 0;
 		/* receive the sent packets */
 		do {
@@ -1636,11 +1636,11 @@ static int e1000_run_loopback_test(struct e1000_adapter *adapter)
 			 */
 		} while ((good_cnt < 64) && !time_after(jiffies, time + 20));
 		if (good_cnt != 64) {
-			ret_val = 13; /* ret_val is the same as mis-compare */
+			ret_val = 13;	/* ret_val is the same as mis-compare */
 			break;
 		}
 		if (jiffies >= (time + 20)) {
-			ret_val = 14; /* error code for time out error */
+			ret_val = 14;	/* error code for time out error */
 			break;
 		}
 	}
diff --git a/drivers/net/ethernet/intel/e1000e/hw.h b/drivers/net/ethernet/intel/e1000e/hw.h
index 84850f7..a6f903a 100644
--- a/drivers/net/ethernet/intel/e1000e/hw.h
+++ b/drivers/net/ethernet/intel/e1000e/hw.h
@@ -402,13 +402,13 @@ struct e1000_phy_stats {
 
 struct e1000_host_mng_dhcp_cookie {
 	u32 signature;
-	u8  status;
-	u8  reserved0;
+	u8 status;
+	u8 reserved0;
 	u16 vlan_id;
 	u32 reserved1;
 	u16 reserved2;
-	u8  reserved3;
-	u8  checksum;
+	u8 reserved3;
+	u8 checksum;
 };
 
 /* Host Interface "Rev 1" */
@@ -427,8 +427,8 @@ struct e1000_host_command_info {
 
 /* Host Interface "Rev 2" */
 struct e1000_host_mng_command_header {
-	u8  command_id;
-	u8  checksum;
+	u8 command_id;
+	u8 checksum;
 	u16 reserved1;
 	u16 reserved2;
 	u16 command_length;
@@ -549,7 +549,7 @@ struct e1000_mac_info {
 	u32 mta_shadow[MAX_MTA_REG];
 	u16 rar_entry_count;
 
-	u8  forced_speed_duplex;
+	u8 forced_speed_duplex;
 
 	bool adaptive_ifs;
 	bool has_fwsm;
@@ -577,7 +577,7 @@ struct e1000_phy_info {
 
 	u32 addr;
 	u32 id;
-	u32 reset_delay_us; /* in usec */
+	u32 reset_delay_us;	/* in usec */
 	u32 revision;
 
 	enum e1000_media_type media_type;
@@ -636,11 +636,11 @@ struct e1000_dev_spec_82571 {
 };
 
 struct e1000_dev_spec_80003es2lan {
-	bool  mdic_wa_enable;
+	bool mdic_wa_enable;
 };
 
 struct e1000_shadow_ram {
-	u16  value;
+	u16 value;
 	bool modified;
 };
 
@@ -660,17 +660,17 @@ struct e1000_hw {
 	void __iomem *hw_addr;
 	void __iomem *flash_address;
 
-	struct e1000_mac_info  mac;
-	struct e1000_fc_info   fc;
-	struct e1000_phy_info  phy;
-	struct e1000_nvm_info  nvm;
-	struct e1000_bus_info  bus;
+	struct e1000_mac_info mac;
+	struct e1000_fc_info fc;
+	struct e1000_phy_info phy;
+	struct e1000_nvm_info nvm;
+	struct e1000_bus_info bus;
 	struct e1000_host_mng_dhcp_cookie mng_cookie;
 
 	union {
-		struct e1000_dev_spec_82571	e82571;
+		struct e1000_dev_spec_82571 e82571;
 		struct e1000_dev_spec_80003es2lan e80003es2lan;
-		struct e1000_dev_spec_ich8lan	ich8lan;
+		struct e1000_dev_spec_ich8lan ich8lan;
 	} dev_spec;
 };
 
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index ad9d8f2..9dde390 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -101,12 +101,12 @@ union ich8_hws_flash_regacc {
 /* ICH Flash Protected Region */
 union ich8_flash_protected_range {
 	struct ich8_pr {
-		u32 base:13;     /* 0:12 Protected Range Base */
-		u32 reserved1:2; /* 13:14 Reserved */
-		u32 rpe:1;       /* 15 Read Protection Enable */
-		u32 limit:13;    /* 16:28 Protected Range Limit */
-		u32 reserved2:2; /* 29:30 Reserved */
-		u32 wpe:1;       /* 31 Write Protection Enable */
+		u32 base:13;	/* 0:12 Protected Range Base */
+		u32 reserved1:2;	/* 13:14 Reserved */
+		u32 rpe:1;	/* 15 Read Protection Enable */
+		u32 limit:13;	/* 16:28 Protected Range Limit */
+		u32 reserved2:2;	/* 29:30 Reserved */
+		u32 wpe:1;	/* 31 Write Protection Enable */
 	} range;
 	u32 regval;
 };
@@ -362,21 +362,21 @@ static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
 	struct e1000_phy_info *phy = &hw->phy;
 	s32 ret_val;
 
-	phy->addr                     = 1;
-	phy->reset_delay_us           = 100;
-
-	phy->ops.set_page             = e1000_set_page_igp;
-	phy->ops.read_reg             = e1000_read_phy_reg_hv;
-	phy->ops.read_reg_locked      = e1000_read_phy_reg_hv_locked;
-	phy->ops.read_reg_page        = e1000_read_phy_reg_page_hv;
-	phy->ops.set_d0_lplu_state    = e1000_set_lplu_state_pchlan;
-	phy->ops.set_d3_lplu_state    = e1000_set_lplu_state_pchlan;
-	phy->ops.write_reg            = e1000_write_phy_reg_hv;
-	phy->ops.write_reg_locked     = e1000_write_phy_reg_hv_locked;
-	phy->ops.write_reg_page       = e1000_write_phy_reg_page_hv;
-	phy->ops.power_up             = e1000_power_up_phy_copper;
-	phy->ops.power_down           = e1000_power_down_phy_copper_ich8lan;
-	phy->autoneg_mask             = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+	phy->addr = 1;
+	phy->reset_delay_us = 100;
+
+	phy->ops.set_page = e1000_set_page_igp;
+	phy->ops.read_reg = e1000_read_phy_reg_hv;
+	phy->ops.read_reg_locked = e1000_read_phy_reg_hv_locked;
+	phy->ops.read_reg_page = e1000_read_phy_reg_page_hv;
+	phy->ops.set_d0_lplu_state = e1000_set_lplu_state_pchlan;
+	phy->ops.set_d3_lplu_state = e1000_set_lplu_state_pchlan;
+	phy->ops.write_reg = e1000_write_phy_reg_hv;
+	phy->ops.write_reg_locked = e1000_write_phy_reg_hv_locked;
+	phy->ops.write_reg_page = e1000_write_phy_reg_page_hv;
+	phy->ops.power_up = e1000_power_up_phy_copper;
+	phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
+	phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
 
 	phy->id = e1000_phy_unknown;
 
@@ -445,11 +445,11 @@ static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
 	s32 ret_val;
 	u16 i = 0;
 
-	phy->addr			= 1;
-	phy->reset_delay_us		= 100;
+	phy->addr = 1;
+	phy->reset_delay_us = 100;
 
-	phy->ops.power_up               = e1000_power_up_phy_copper;
-	phy->ops.power_down             = e1000_power_down_phy_copper_ich8lan;
+	phy->ops.power_up = e1000_power_up_phy_copper;
+	phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
 
 	/* We may need to do this twice - once for IGP and if that fails,
 	 * we'll set BM func pointers and try again
@@ -457,7 +457,7 @@ static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
 	ret_val = e1000e_determine_phy_address(hw);
 	if (ret_val) {
 		phy->ops.write_reg = e1000e_write_phy_reg_bm;
-		phy->ops.read_reg  = e1000e_read_phy_reg_bm;
+		phy->ops.read_reg = e1000e_read_phy_reg_bm;
 		ret_val = e1000e_determine_phy_address(hw);
 		if (ret_val) {
 			e_dbg("Cannot determine PHY addr. Erroring out\n");
@@ -560,7 +560,7 @@ static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
 	/* Clear shadow ram */
 	for (i = 0; i < nvm->word_size; i++) {
 		dev_spec->shadow_ram[i].modified = false;
-		dev_spec->shadow_ram[i].value    = 0xFFFF;
+		dev_spec->shadow_ram[i].value = 0xFFFF;
 	}
 
 	return 0;
@@ -1012,7 +1012,7 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 	hw->dev_spec.ich8lan.eee_lp_ability = 0;
 
 	if (!link)
-		return 0; /* No link detected */
+		return 0;	/* No link detected */
 
 	mac->get_link_status = false;
 
@@ -2816,7 +2816,7 @@ static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
 	s32 ret_val = -E1000_ERR_NVM;
 	u8 count = 0;
 
-	if (size < 1  || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
+	if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
 		return -E1000_ERR_NVM;
 
 	flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
@@ -2939,7 +2939,7 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
 	 * write to bank 0 etc.  We also need to erase the segment that
 	 * is going to be written
 	 */
-	ret_val =  e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
+	ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
 	if (ret_val) {
 		e_dbg("Could not detect valid bank, assuming bank 0\n");
 		bank = 0;
@@ -4073,7 +4073,7 @@ void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw)
 {
 	u32 reg;
 	u16 data;
-	u8  retry = 0;
+	u8 retry = 0;
 
 	if (hw->phy.type != e1000_phy_igp_3)
 		return;
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index a27e3bc..ad5f434 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -1196,7 +1196,7 @@ static bool e1000_clean_tx_irq(struct e1000_ring *tx_ring)
 	while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
 	       (count < tx_ring->count)) {
 		bool cleaned = false;
-		rmb(); /* read buffer_info after eop_desc */
+		rmb();		/* read buffer_info after eop_desc */
 		for (; !cleaned; count++) {
 			tx_desc = E1000_TX_DESC(*tx_ring, i);
 			buffer_info = &tx_ring->buffer_info[i];
@@ -1385,7 +1385,7 @@ static bool e1000_clean_rx_irq_ps(struct e1000_ring *rx_ring, int *work_done,
 
 				skb_put(skb, l1);
 				goto copydone;
-			} /* if */
+			}	/* if */
 		}
 
 		for (j = 0; j < PS_PAGE_BUFFERS; j++) {
@@ -1800,7 +1800,7 @@ static irqreturn_t e1000_intr(int __always_unused irq, void *data)
 	u32 rctl, icr = er32(ICR);
 
 	if (!icr || test_bit(__E1000_DOWN, &adapter->state))
-		return IRQ_NONE;  /* Not our interrupt */
+		return IRQ_NONE;	/* Not our interrupt */
 
 	/* IMS will not auto-mask if INT_ASSERTED is not set, and if it is
 	 * not set, then the adapter didn't send an interrupt
@@ -2487,7 +2487,7 @@ static unsigned int e1000_update_itr(u16 itr_setting, int packets, int bytes)
 		else if ((packets < 5) && (bytes > 512))
 			retval = low_latency;
 		break;
-	case low_latency:  /* 50 usec aka 20000 ints/s */
+	case low_latency:	/* 50 usec aka 20000 ints/s */
 		if (bytes > 10000) {
 			/* this if handles the TSO accounting */
 			if (bytes / packets > 8000)
@@ -2502,7 +2502,7 @@ static unsigned int e1000_update_itr(u16 itr_setting, int packets, int bytes)
 			retval = lowest_latency;
 		}
 		break;
-	case bulk_latency: /* 250 usec aka 4000 ints/s */
+	case bulk_latency:	/* 250 usec aka 4000 ints/s */
 		if (bytes > 25000) {
 			if (packets > 35)
 				retval = low_latency;
@@ -2554,7 +2554,7 @@ static void e1000_set_itr(struct e1000_adapter *adapter)
 		new_itr = 70000;
 		break;
 	case low_latency:
-		new_itr = 20000; /* aka hwitr = ~200 */
+		new_itr = 20000;	/* aka hwitr = ~200 */
 		break;
 	case bulk_latency:
 		new_itr = 4000;
@@ -3104,13 +3104,13 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter)
 		/* UPE and MPE will be handled by normal PROMISC logic
 		 * in e1000e_set_rx_mode
 		 */
-		rctl |= (E1000_RCTL_SBP | /* Receive bad packets */
-			 E1000_RCTL_BAM | /* RX All Bcast Pkts */
-			 E1000_RCTL_PMCF); /* RX All MAC Ctrl Pkts */
+		rctl |= (E1000_RCTL_SBP |	/* Receive bad packets */
+			 E1000_RCTL_BAM |	/* RX All Bcast Pkts */
+			 E1000_RCTL_PMCF);	/* RX All MAC Ctrl Pkts */
 
-		rctl &= ~(E1000_RCTL_VFE | /* Disable VLAN filter */
-			  E1000_RCTL_DPF | /* Allow filtered pause */
-			  E1000_RCTL_CFIEN); /* Dis VLAN CFIEN Filter */
+		rctl &= ~(E1000_RCTL_VFE |	/* Disable VLAN filter */
+			  E1000_RCTL_DPF |	/* Allow filtered pause */
+			  E1000_RCTL_CFIEN);	/* Dis VLAN CFIEN Filter */
 		/* Do not mess with E1000_CTRL_VME, it affects transmit as well,
 		 * and that breaks VLANs.
 		 */
@@ -3799,7 +3799,7 @@ void e1000e_reset(struct e1000_adapter *adapter)
 		hwm = min(((pba << 10) * 9 / 10),
 			  ((pba << 10) - adapter->max_frame_size));
 
-		fc->high_water = hwm & E1000_FCRTH_RTH; /* 8-byte granularity */
+		fc->high_water = hwm & E1000_FCRTH_RTH;	/* 8-byte granularity */
 		fc->low_water = fc->high_water - 8;
 		break;
 	case e1000_pchlan:
@@ -3808,10 +3808,10 @@ void e1000e_reset(struct e1000_adapter *adapter)
 		 */
 		if (adapter->netdev->mtu > ETH_DATA_LEN) {
 			fc->high_water = 0x3500;
-			fc->low_water  = 0x1500;
+			fc->low_water = 0x1500;
 		} else {
 			fc->high_water = 0x5000;
-			fc->low_water  = 0x3000;
+			fc->low_water = 0x3000;
 		}
 		fc->refresh_time = 0x1000;
 		break;
@@ -4581,7 +4581,7 @@ static void e1000e_update_stats(struct e1000_adapter *adapter)
 	adapter->stats.crcerrs += er32(CRCERRS);
 	adapter->stats.gprc += er32(GPRC);
 	adapter->stats.gorc += er32(GORCL);
-	er32(GORCH); /* Clear gorc */
+	er32(GORCH);		/* Clear gorc */
 	adapter->stats.bprc += er32(BPRC);
 	adapter->stats.mprc += er32(MPRC);
 	adapter->stats.roc += er32(ROC);
@@ -4614,7 +4614,7 @@ static void e1000e_update_stats(struct e1000_adapter *adapter)
 	adapter->stats.xofftxc += er32(XOFFTXC);
 	adapter->stats.gptc += er32(GPTC);
 	adapter->stats.gotc += er32(GOTCL);
-	er32(GOTCH); /* Clear gotc */
+	er32(GOTCH);		/* Clear gotc */
 	adapter->stats.rnbc += er32(RNBC);
 	adapter->stats.ruc += er32(RUC);
 
@@ -5106,13 +5106,13 @@ static int e1000_tso(struct e1000_ring *tx_ring, struct sk_buff *skb)
 	context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
 	buffer_info = &tx_ring->buffer_info[i];
 
-	context_desc->lower_setup.ip_fields.ipcss  = ipcss;
-	context_desc->lower_setup.ip_fields.ipcso  = ipcso;
-	context_desc->lower_setup.ip_fields.ipcse  = cpu_to_le16(ipcse);
+	context_desc->lower_setup.ip_fields.ipcss = ipcss;
+	context_desc->lower_setup.ip_fields.ipcso = ipcso;
+	context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse);
 	context_desc->upper_setup.tcp_fields.tucss = tucss;
 	context_desc->upper_setup.tcp_fields.tucso = tucso;
 	context_desc->upper_setup.tcp_fields.tucse = 0;
-	context_desc->tcp_seg_setup.fields.mss     = cpu_to_le16(mss);
+	context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss);
 	context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
 	context_desc->cmd_and_length = cpu_to_le32(cmd_length);
 
@@ -5363,7 +5363,7 @@ static void e1000_tx_queue(struct e1000_ring *tx_ring, int tx_flags, int count)
 static int e1000_transfer_dhcp_info(struct e1000_adapter *adapter,
 				    struct sk_buff *skb)
 {
-	struct e1000_hw *hw =  &adapter->hw;
+	struct e1000_hw *hw = &adapter->hw;
 	u16 length, offset;
 
 	if (vlan_tx_tag_present(skb) &&
@@ -6259,7 +6259,7 @@ static void e1000_netpoll(struct net_device *netdev)
 		e1000_intr_msi(adapter->pdev->irq, netdev);
 		enable_irq(adapter->pdev->irq);
 		break;
-	default: /* E1000E_INT_MODE_LEGACY */
+	default:		/* E1000E_INT_MODE_LEGACY */
 		disable_irq(adapter->pdev->irq);
 		e1000_intr(adapter->pdev->irq, netdev);
 		enable_irq(adapter->pdev->irq);
@@ -6589,9 +6589,9 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		adapter->eee_advert = MDIO_EEE_100TX | MDIO_EEE_1000T;
 
 	/* construct the net_device struct */
-	netdev->netdev_ops		= &e1000e_netdev_ops;
+	netdev->netdev_ops = &e1000e_netdev_ops;
 	e1000e_set_ethtool_ops(netdev);
-	netdev->watchdog_timeo		= 5 * HZ;
+	netdev->watchdog_timeo = 5 * HZ;
 	netif_napi_add(netdev, &adapter->napi, e1000e_poll, 64);
 	strlcpy(netdev->name, pci_name(pdev), sizeof(netdev->name));
 
@@ -7034,7 +7034,6 @@ static void __exit e1000_exit_module(void)
 }
 module_exit(e1000_exit_module);
 
-
 MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
 MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/intel/e1000e/nvm.c b/drivers/net/ethernet/intel/e1000e/nvm.c
index 44ddc0a..d70a039 100644
--- a/drivers/net/ethernet/intel/e1000e/nvm.c
+++ b/drivers/net/ethernet/intel/e1000e/nvm.c
@@ -117,7 +117,6 @@ static u16 e1000_shift_in_eec_bits(struct e1000_hw *hw, u16 count)
 	u16 data;
 
 	eecd = er32(EECD);
-
 	eecd &= ~(E1000_EECD_DO | E1000_EECD_DI);
 	data = 0;
 
diff --git a/drivers/net/ethernet/intel/e1000e/phy.c b/drivers/net/ethernet/intel/e1000e/phy.c
index 59c76a6..da2be59 100644
--- a/drivers/net/ethernet/intel/e1000e/phy.c
+++ b/drivers/net/ethernet/intel/e1000e/phy.c
@@ -1583,13 +1583,13 @@ s32 e1000e_check_downshift(struct e1000_hw *hw)
 	case e1000_phy_gg82563:
 	case e1000_phy_bm:
 	case e1000_phy_82578:
-		offset	= M88E1000_PHY_SPEC_STATUS;
-		mask	= M88E1000_PSSR_DOWNSHIFT;
+		offset = M88E1000_PHY_SPEC_STATUS;
+		mask = M88E1000_PSSR_DOWNSHIFT;
 		break;
 	case e1000_phy_igp_2:
 	case e1000_phy_igp_3:
-		offset	= IGP01E1000_PHY_LINK_HEALTH;
-		mask	= IGP01E1000_PLHR_SS_DOWNGRADE;
+		offset = IGP01E1000_PHY_LINK_HEALTH;
+		mask = IGP01E1000_PLHR_SS_DOWNGRADE;
 		break;
 	default:
 		/* speed downshift not supported */
@@ -1653,14 +1653,14 @@ s32 e1000_check_polarity_igp(struct e1000_hw *hw)
 
 	if ((data & IGP01E1000_PSSR_SPEED_MASK) ==
 	    IGP01E1000_PSSR_SPEED_1000MBPS) {
-		offset	= IGP01E1000_PHY_PCS_INIT_REG;
-		mask	= IGP01E1000_PHY_POLARITY_MASK;
+		offset = IGP01E1000_PHY_PCS_INIT_REG;
+		mask = IGP01E1000_PHY_POLARITY_MASK;
 	} else {
 		/* This really only applies to 10Mbps since
 		 * there is no polarity for 100Mbps (always 0).
 		 */
-		offset	= IGP01E1000_PHY_PORT_STATUS;
-		mask	= IGP01E1000_PSSR_POLARITY_REVERSED;
+		offset = IGP01E1000_PHY_PORT_STATUS;
+		mask = IGP01E1000_PSSR_POLARITY_REVERSED;
 	}
 
 	ret_val = e1e_rphy(hw, offset, &data);
@@ -1900,7 +1900,7 @@ s32 e1000e_get_cable_length_igp_2(struct e1000_hw *hw)
 s32 e1000e_get_phy_info_m88(struct e1000_hw *hw)
 {
 	struct e1000_phy_info *phy = &hw->phy;
-	s32  ret_val;
+	s32 ret_val;
 	u16 phy_data;
 	bool link;
 
@@ -2253,7 +2253,7 @@ enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id)
 	case M88E1011_I_PHY_ID:
 		phy_type = e1000_phy_m88;
 		break;
-	case IGP01E1000_I_PHY_ID: /* IGP 1 & 2 share this */
+	case IGP01E1000_I_PHY_ID:	/* IGP 1 & 2 share this */
 		phy_type = e1000_phy_igp_2;
 		break;
 	case GG82563_E_PHY_ID:
@@ -2317,7 +2317,7 @@ s32 e1000e_determine_phy_address(struct e1000_hw *hw)
 			/* If phy_type is valid, break - we found our
 			 * PHY address
 			 */
-			if (phy_type  != e1000_phy_unknown)
+			if (phy_type != e1000_phy_unknown)
 				return 0;
 
 			usleep_range(1000, 2000);
-- 
cgit v0.10.2


From 603cdca9805e4f8001cf7ffbd8c539c9fa6674ce Mon Sep 17 00:00:00 2001
From: Bruce Allan <bruce.w.allan@intel.com>
Date: Wed, 1 May 2013 03:48:11 +0000
Subject: e1000e: prevent warning from -Wunused-parameter

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index ad5f434..77f81cb 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -2673,7 +2673,7 @@ static int e1000e_poll(struct napi_struct *napi, int weight)
 }
 
 static int e1000_vlan_rx_add_vid(struct net_device *netdev,
-				 __be16 proto, u16 vid)
+				 __always_unused __be16 proto, u16 vid)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
@@ -2699,7 +2699,7 @@ static int e1000_vlan_rx_add_vid(struct net_device *netdev,
 }
 
 static int e1000_vlan_rx_kill_vid(struct net_device *netdev,
-				  __be16 proto, u16 vid)
+				  __always_unused __be16 proto, u16 vid)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
-- 
cgit v0.10.2


From 6c1d8b96d09ed8852f5bc11c42374be3232374ce Mon Sep 17 00:00:00 2001
From: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Date: Thu, 2 May 2013 02:57:44 +0000
Subject: e1000e: Release mutex lock only if it has been initially acquired

This patch fixes the issue of unlocking swflag_mutex for 82574 and 82583
devices regardless of if the hw semaphore has been successfully acquired via
e1000_get_hw_semaphore_82574(). With this patch, unlocking mutex now depends
on if the hw semaphore was successfully acquired before. And 82574/82583
devices are reset regardless of whether e1000_get_hw_semaphore_82574()
returns success or failure.

Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c
index bef2f10..4c303e2 100644
--- a/drivers/net/ethernet/intel/e1000e/82571.c
+++ b/drivers/net/ethernet/intel/e1000e/82571.c
@@ -1003,8 +1003,6 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 	default:
 		break;
 	}
-	if (ret_val)
-		e_dbg("Cannot acquire MDIO ownership\n");
 
 	ctrl = er32(CTRL);
 
@@ -1015,7 +1013,9 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw)
 	switch (hw->mac.type) {
 	case e1000_82574:
 	case e1000_82583:
-		e1000_put_hw_semaphore_82574(hw);
+		/* Release mutex only if the hw semaphore is acquired */
+		if (!ret_val)
+			e1000_put_hw_semaphore_82574(hw);
 		break;
 	default:
 		break;
-- 
cgit v0.10.2


From cf7ed221714c36848b257311b316452e274f7e15 Mon Sep 17 00:00:00 2001
From: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Date: Fri, 29 Mar 2013 08:22:25 +0000
Subject: igb: Changed LEDs blink mechanism to include designs using cathode

This patch addresses the changes needed to make LEDs work properly with
negative logic. This implementation uses LED Invert bit to reverse the
logic issue that occurred when LEDs are driven by cathode. Keep LEDs
blinking for SerDes devices. Also made changes to magic number and the
for loop to reduce number of shifts.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/e1000_defines.h b/drivers/net/ethernet/intel/igb/e1000_defines.h
index 31a0f82..aa17649 100644
--- a/drivers/net/ethernet/intel/igb/e1000_defines.h
+++ b/drivers/net/ethernet/intel/igb/e1000_defines.h
@@ -270,8 +270,10 @@
 #define AUTONEG_ADVERTISE_SPEED_DEFAULT   E1000_ALL_SPEED_DUPLEX
 
 /* LED Control */
-#define E1000_LEDCTL_LED0_MODE_SHIFT      0
-#define E1000_LEDCTL_LED0_BLINK           0x00000080
+#define E1000_LEDCTL_LED0_MODE_SHIFT	0
+#define E1000_LEDCTL_LED0_BLINK		0x00000080
+#define E1000_LEDCTL_LED0_MODE_MASK	0x0000000F
+#define E1000_LEDCTL_LED0_IVRT		0x00000040
 
 #define E1000_LEDCTL_MODE_LED_ON        0xE
 #define E1000_LEDCTL_MODE_LED_OFF       0xF
diff --git a/drivers/net/ethernet/intel/igb/e1000_mac.c b/drivers/net/ethernet/intel/igb/e1000_mac.c
index 2559d70..660b7ad 100644
--- a/drivers/net/ethernet/intel/igb/e1000_mac.c
+++ b/drivers/net/ethernet/intel/igb/e1000_mac.c
@@ -1406,15 +1406,34 @@ s32 igb_blink_led(struct e1000_hw *hw)
 	u32 ledctl_blink = 0;
 	u32 i;
 
-	/* set the blink bit for each LED that's "on" (0x0E)
-	 * in ledctl_mode2
-	 */
-	ledctl_blink = hw->mac.ledctl_mode2;
-	for (i = 0; i < 4; i++)
-		if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) ==
-		    E1000_LEDCTL_MODE_LED_ON)
-			ledctl_blink |= (E1000_LEDCTL_LED0_BLINK <<
-					 (i * 8));
+	if (hw->phy.media_type == e1000_media_type_fiber) {
+		/* always blink LED0 for PCI-E fiber */
+		ledctl_blink = E1000_LEDCTL_LED0_BLINK |
+		     (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT);
+	} else {
+		/* Set the blink bit for each LED that's "on" (0x0E)
+		 * (or "off" if inverted) in ledctl_mode2.  The blink
+		 * logic in hardware only works when mode is set to "on"
+		 * so it must be changed accordingly when the mode is
+		 * "off" and inverted.
+		 */
+		ledctl_blink = hw->mac.ledctl_mode2;
+		for (i = 0; i < 32; i += 8) {
+			u32 mode = (hw->mac.ledctl_mode2 >> i) &
+			    E1000_LEDCTL_LED0_MODE_MASK;
+			u32 led_default = hw->mac.ledctl_default >> i;
+
+			if ((!(led_default & E1000_LEDCTL_LED0_IVRT) &&
+			     (mode == E1000_LEDCTL_MODE_LED_ON)) ||
+			    ((led_default & E1000_LEDCTL_LED0_IVRT) &&
+			     (mode == E1000_LEDCTL_MODE_LED_OFF))) {
+				ledctl_blink &=
+				    ~(E1000_LEDCTL_LED0_MODE_MASK << i);
+				ledctl_blink |= (E1000_LEDCTL_LED0_BLINK |
+						 E1000_LEDCTL_MODE_LED_ON) << i;
+			}
+		}
+	}
 
 	wr32(E1000_LEDCTL, ledctl_blink);
 
-- 
cgit v0.10.2


From 20a48412281732ddb75e0ac7d9e0b5406f1b6669 Mon Sep 17 00:00:00 2001
From: Matthew Vick <matthew.vick@intel.com>
Date: Wed, 24 Apr 2013 07:42:06 +0000
Subject: igb: Add update to last_rx_timestamp in Rx rings

In order to support a more accurate check for a PTP Rx hang where the
device can no longer timestamp received packets, we need to update, per
ring, when the last Rx timestamp was. Because of how the PTP Rx hang logic
works, the current logic is valid, but properly updating the ring variable
increases the accuracy of the check.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 9d6c075..a905707 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -514,13 +514,18 @@ extern void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector,
 extern void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector,
 				unsigned char *va,
 				struct sk_buff *skb);
-static inline void igb_ptp_rx_hwtstamp(struct igb_q_vector *q_vector,
+static inline void igb_ptp_rx_hwtstamp(struct igb_ring *rx_ring,
 				       union e1000_adv_rx_desc *rx_desc,
 				       struct sk_buff *skb)
 {
 	if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TS) &&
 	    !igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP))
-		igb_ptp_rx_rgtstamp(q_vector, skb);
+		igb_ptp_rx_rgtstamp(rx_ring->q_vector, skb);
+
+	/* Update the last_rx_timestamp timer in order to enable watchdog check
+	 * for error case of latched timestamp on a dropped packet.
+	 */
+	rx_ring->last_rx_timestamp = jiffies;
 }
 
 extern int igb_ptp_hwtstamp_ioctl(struct net_device *netdev,
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 64cbe0d..2c8f7e0 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6622,7 +6622,7 @@ static void igb_process_skb_fields(struct igb_ring *rx_ring,
 
 	igb_rx_checksum(rx_ring, rx_desc, skb);
 
-	igb_ptp_rx_hwtstamp(rx_ring->q_vector, rx_desc, skb);
+	igb_ptp_rx_hwtstamp(rx_ring, rx_desc, skb);
 
 	if ((dev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
 	    igb_test_staterr(rx_desc, E1000_RXD_STAT_VP)) {
-- 
cgit v0.10.2


From 641ac5c0cd46919dc9be4c933f95edae1e4e4163 Mon Sep 17 00:00:00 2001
From: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Date: Wed, 24 Apr 2013 16:54:50 +0000
Subject: igb: Support for SFP modules discovery

This patch adds support for SFP modules media type discovery for
SGMII, which will enable driver to detect supported external PHYs,
including 100baseFXSFP module.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c
index ff6a17c..f21a91a 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -401,12 +401,82 @@ static s32 igb_init_mac_params_82575(struct e1000_hw *hw)
 	return 0;
 }
 
+/**
+ *  igb_set_sfp_media_type_82575 - derives SFP module media type.
+ *  @hw: pointer to the HW structure
+ *
+ *  The media type is chosen based on SFP module.
+ *  compatibility flags retrieved from SFP ID EEPROM.
+ **/
+static s32 igb_set_sfp_media_type_82575(struct e1000_hw *hw)
+{
+	s32 ret_val = E1000_ERR_CONFIG;
+	u32 ctrl_ext = 0;
+	struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575;
+	struct e1000_sfp_flags *eth_flags = &dev_spec->eth_flags;
+	u8 tranceiver_type = 0;
+	s32 timeout = 3;
+
+	/* Turn I2C interface ON and power on sfp cage */
+	ctrl_ext = rd32(E1000_CTRL_EXT);
+	ctrl_ext &= ~E1000_CTRL_EXT_SDP3_DATA;
+	wr32(E1000_CTRL_EXT, ctrl_ext | E1000_CTRL_I2C_ENA);
+
+	wrfl();
+
+	/* Read SFP module data */
+	while (timeout) {
+		ret_val = igb_read_sfp_data_byte(hw,
+			E1000_I2CCMD_SFP_DATA_ADDR(E1000_SFF_IDENTIFIER_OFFSET),
+			&tranceiver_type);
+		if (ret_val == 0)
+			break;
+		msleep(100);
+		timeout--;
+	}
+	if (ret_val != 0)
+		goto out;
+
+	ret_val = igb_read_sfp_data_byte(hw,
+			E1000_I2CCMD_SFP_DATA_ADDR(E1000_SFF_ETH_FLAGS_OFFSET),
+			(u8 *)eth_flags);
+	if (ret_val != 0)
+		goto out;
+
+	/* Check if there is some SFP module plugged and powered */
+	if ((tranceiver_type == E1000_SFF_IDENTIFIER_SFP) ||
+	    (tranceiver_type == E1000_SFF_IDENTIFIER_SFF)) {
+		dev_spec->module_plugged = true;
+		if (eth_flags->e1000_base_lx || eth_flags->e1000_base_sx) {
+			hw->phy.media_type = e1000_media_type_internal_serdes;
+		} else if (eth_flags->e100_base_fx) {
+			dev_spec->sgmii_active = true;
+			hw->phy.media_type = e1000_media_type_internal_serdes;
+		} else if (eth_flags->e1000_base_t) {
+			dev_spec->sgmii_active = true;
+			hw->phy.media_type = e1000_media_type_copper;
+		} else {
+			hw->phy.media_type = e1000_media_type_unknown;
+			hw_dbg("PHY module has not been recognized\n");
+			goto out;
+		}
+	} else {
+		hw->phy.media_type = e1000_media_type_unknown;
+	}
+	ret_val = 0;
+out:
+	/* Restore I2C interface setting */
+	wr32(E1000_CTRL_EXT, ctrl_ext);
+	return ret_val;
+}
+
 static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 {
 	struct e1000_mac_info *mac = &hw->mac;
 	struct e1000_dev_spec_82575 * dev_spec = &hw->dev_spec._82575;
 	s32 ret_val;
 	u32 ctrl_ext = 0;
+	u32 link_mode = 0;
 
 	switch (hw->device_id) {
 	case E1000_DEV_ID_82575EB_COPPER:
@@ -470,16 +540,56 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 	 */
 	hw->phy.media_type = e1000_media_type_copper;
 	dev_spec->sgmii_active = false;
+	dev_spec->module_plugged = false;
 
 	ctrl_ext = rd32(E1000_CTRL_EXT);
-	switch (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK) {
-	case E1000_CTRL_EXT_LINK_MODE_SGMII:
-		dev_spec->sgmii_active = true;
-		break;
+
+	link_mode = ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK;
+	switch (link_mode) {
 	case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX:
-	case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES:
 		hw->phy.media_type = e1000_media_type_internal_serdes;
 		break;
+	case E1000_CTRL_EXT_LINK_MODE_SGMII:
+		/* Get phy control interface type set (MDIO vs. I2C)*/
+		if (igb_sgmii_uses_mdio_82575(hw)) {
+			hw->phy.media_type = e1000_media_type_copper;
+			dev_spec->sgmii_active = true;
+			break;
+		}
+		/* fall through for I2C based SGMII */
+	case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES:
+		/* read media type from SFP EEPROM */
+		ret_val = igb_set_sfp_media_type_82575(hw);
+		if ((ret_val != 0) ||
+		    (hw->phy.media_type == e1000_media_type_unknown)) {
+			/* If media type was not identified then return media
+			 * type defined by the CTRL_EXT settings.
+			 */
+			hw->phy.media_type = e1000_media_type_internal_serdes;
+
+			if (link_mode == E1000_CTRL_EXT_LINK_MODE_SGMII) {
+				hw->phy.media_type = e1000_media_type_copper;
+				dev_spec->sgmii_active = true;
+			}
+
+			break;
+		}
+
+		/* do not change link mode for 100BaseFX */
+		if (dev_spec->eth_flags.e100_base_fx)
+			break;
+
+		/* change current link mode setting */
+		ctrl_ext &= ~E1000_CTRL_EXT_LINK_MODE_MASK;
+
+		if (hw->phy.media_type == e1000_media_type_copper)
+			ctrl_ext |= E1000_CTRL_EXT_LINK_MODE_SGMII;
+		else
+			ctrl_ext |= E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
+
+		wr32(E1000_CTRL_EXT, ctrl_ext);
+
+		break;
 	default:
 		break;
 	}
diff --git a/drivers/net/ethernet/intel/igb/e1000_defines.h b/drivers/net/ethernet/intel/igb/e1000_defines.h
index aa17649..aa201ab 100644
--- a/drivers/net/ethernet/intel/igb/e1000_defines.h
+++ b/drivers/net/ethernet/intel/igb/e1000_defines.h
@@ -61,20 +61,22 @@
 /* Clear Interrupt timers after IMS clear */
 /* packet buffer parity error detection enabled */
 /* descriptor FIFO parity error detection enable */
-#define E1000_CTRL_EXT_PBA_CLR        0x80000000 /* PBA Clear */
-#define E1000_I2CCMD_REG_ADDR_SHIFT   16
-#define E1000_I2CCMD_PHY_ADDR_SHIFT   24
-#define E1000_I2CCMD_OPCODE_READ      0x08000000
-#define E1000_I2CCMD_OPCODE_WRITE     0x00000000
-#define E1000_I2CCMD_READY            0x20000000
-#define E1000_I2CCMD_ERROR            0x80000000
-#define E1000_MAX_SGMII_PHY_REG_ADDR  255
-#define E1000_I2CCMD_PHY_TIMEOUT      200
-#define E1000_IVAR_VALID              0x80
-#define E1000_GPIE_NSICR              0x00000001
-#define E1000_GPIE_MSIX_MODE          0x00000010
-#define E1000_GPIE_EIAME              0x40000000
-#define E1000_GPIE_PBA                0x80000000
+#define E1000_CTRL_EXT_PBA_CLR		0x80000000 /* PBA Clear */
+#define E1000_I2CCMD_REG_ADDR_SHIFT	16
+#define E1000_I2CCMD_PHY_ADDR_SHIFT	24
+#define E1000_I2CCMD_OPCODE_READ	0x08000000
+#define E1000_I2CCMD_OPCODE_WRITE	0x00000000
+#define E1000_I2CCMD_READY		0x20000000
+#define E1000_I2CCMD_ERROR		0x80000000
+#define E1000_I2CCMD_SFP_DATA_ADDR(a)	(0x0000 + (a))
+#define E1000_I2CCMD_SFP_DIAG_ADDR(a)	(0x0100 + (a))
+#define E1000_MAX_SGMII_PHY_REG_ADDR	255
+#define E1000_I2CCMD_PHY_TIMEOUT	200
+#define E1000_IVAR_VALID		0x80
+#define E1000_GPIE_NSICR		0x00000001
+#define E1000_GPIE_MSIX_MODE		0x00000010
+#define E1000_GPIE_EIAME		0x40000000
+#define E1000_GPIE_PBA			0x80000000
 
 /* Receive Descriptor bit definitions */
 #define E1000_RXD_STAT_DD       0x01    /* Descriptor Done */
diff --git a/drivers/net/ethernet/intel/igb/e1000_hw.h b/drivers/net/ethernet/intel/igb/e1000_hw.h
index 488abb2..94d7866 100644
--- a/drivers/net/ethernet/intel/igb/e1000_hw.h
+++ b/drivers/net/ethernet/intel/igb/e1000_hw.h
@@ -528,6 +528,8 @@ struct e1000_dev_spec_82575 {
 	bool global_device_reset;
 	bool eee_disable;
 	bool clear_semaphore_once;
+	struct e1000_sfp_flags eth_flags;
+	bool module_plugged;
 };
 
 struct e1000_hw {
diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c
index 115b0da..1d6a401 100644
--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
@@ -341,6 +341,130 @@ s32 igb_write_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 data)
 }
 
 /**
+ *  igb_read_sfp_data_byte - Reads SFP module data.
+ *  @hw: pointer to the HW structure
+ *  @offset: byte location offset to be read
+ *  @data: read data buffer pointer
+ *
+ *  Reads one byte from SFP module data stored
+ *  in SFP resided EEPROM memory or SFP diagnostic area.
+ *  Function should be called with
+ *  E1000_I2CCMD_SFP_DATA_ADDR(<byte offset>) for SFP module database access
+ *  E1000_I2CCMD_SFP_DIAG_ADDR(<byte offset>) for SFP diagnostics parameters
+ *  access
+ **/
+s32 igb_read_sfp_data_byte(struct e1000_hw *hw, u16 offset, u8 *data)
+{
+	u32 i = 0;
+	u32 i2ccmd = 0;
+	u32 data_local = 0;
+
+	if (offset > E1000_I2CCMD_SFP_DIAG_ADDR(255)) {
+		hw_dbg("I2CCMD command address exceeds upper limit\n");
+		return -E1000_ERR_PHY;
+	}
+
+	/* Set up Op-code, EEPROM Address,in the I2CCMD
+	 * register. The MAC will take care of interfacing with the
+	 * EEPROM to retrieve the desired data.
+	 */
+	i2ccmd = ((offset << E1000_I2CCMD_REG_ADDR_SHIFT) |
+		  E1000_I2CCMD_OPCODE_READ);
+
+	wr32(E1000_I2CCMD, i2ccmd);
+
+	/* Poll the ready bit to see if the I2C read completed */
+	for (i = 0; i < E1000_I2CCMD_PHY_TIMEOUT; i++) {
+		udelay(50);
+		data_local = rd32(E1000_I2CCMD);
+		if (data_local & E1000_I2CCMD_READY)
+			break;
+	}
+	if (!(data_local & E1000_I2CCMD_READY)) {
+		hw_dbg("I2CCMD Read did not complete\n");
+		return -E1000_ERR_PHY;
+	}
+	if (data_local & E1000_I2CCMD_ERROR) {
+		hw_dbg("I2CCMD Error bit set\n");
+		return -E1000_ERR_PHY;
+	}
+	*data = (u8) data_local & 0xFF;
+
+	return 0;
+}
+
+/**
+ *  e1000_write_sfp_data_byte - Writes SFP module data.
+ *  @hw: pointer to the HW structure
+ *  @offset: byte location offset to write to
+ *  @data: data to write
+ *
+ *  Writes one byte to SFP module data stored
+ *  in SFP resided EEPROM memory or SFP diagnostic area.
+ *  Function should be called with
+ *  E1000_I2CCMD_SFP_DATA_ADDR(<byte offset>) for SFP module database access
+ *  E1000_I2CCMD_SFP_DIAG_ADDR(<byte offset>) for SFP diagnostics parameters
+ *  access
+ **/
+s32 e1000_write_sfp_data_byte(struct e1000_hw *hw, u16 offset, u8 data)
+{
+	u32 i = 0;
+	u32 i2ccmd = 0;
+	u32 data_local = 0;
+
+	if (offset > E1000_I2CCMD_SFP_DIAG_ADDR(255)) {
+		hw_dbg("I2CCMD command address exceeds upper limit\n");
+		return -E1000_ERR_PHY;
+	}
+	/* The programming interface is 16 bits wide
+	 * so we need to read the whole word first
+	 * then update appropriate byte lane and write
+	 * the updated word back.
+	 */
+	/* Set up Op-code, EEPROM Address,in the I2CCMD
+	 * register. The MAC will take care of interfacing
+	 * with an EEPROM to write the data given.
+	 */
+	i2ccmd = ((offset << E1000_I2CCMD_REG_ADDR_SHIFT) |
+		  E1000_I2CCMD_OPCODE_READ);
+	/* Set a command to read single word */
+	wr32(E1000_I2CCMD, i2ccmd);
+	for (i = 0; i < E1000_I2CCMD_PHY_TIMEOUT; i++) {
+		udelay(50);
+		/* Poll the ready bit to see if lastly
+		 * launched I2C operation completed
+		 */
+		i2ccmd = rd32(E1000_I2CCMD);
+		if (i2ccmd & E1000_I2CCMD_READY) {
+			/* Check if this is READ or WRITE phase */
+			if ((i2ccmd & E1000_I2CCMD_OPCODE_READ) ==
+			    E1000_I2CCMD_OPCODE_READ) {
+				/* Write the selected byte
+				 * lane and update whole word
+				 */
+				data_local = i2ccmd & 0xFF00;
+				data_local |= data;
+				i2ccmd = ((offset <<
+					E1000_I2CCMD_REG_ADDR_SHIFT) |
+					E1000_I2CCMD_OPCODE_WRITE | data_local);
+				wr32(E1000_I2CCMD, i2ccmd);
+			} else {
+				break;
+			}
+		}
+	}
+	if (!(i2ccmd & E1000_I2CCMD_READY)) {
+		hw_dbg("I2CCMD Write did not complete\n");
+		return -E1000_ERR_PHY;
+	}
+	if (i2ccmd & E1000_I2CCMD_ERROR) {
+		hw_dbg("I2CCMD Error bit set\n");
+		return -E1000_ERR_PHY;
+	}
+	return 0;
+}
+
+/**
  *  igb_read_phy_reg_igp - Read igp PHY register
  *  @hw: pointer to the HW structure
  *  @offset: register offset to be read
diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.h b/drivers/net/ethernet/intel/igb/e1000_phy.h
index 784fd1c..6a0873f 100644
--- a/drivers/net/ethernet/intel/igb/e1000_phy.h
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.h
@@ -69,6 +69,8 @@ s32  igb_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data);
 s32  igb_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data);
 s32  igb_read_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 *data);
 s32  igb_write_phy_reg_i2c(struct e1000_hw *hw, u32 offset, u16 data);
+s32  igb_read_sfp_data_byte(struct e1000_hw *hw, u16 offset, u8 *data);
+s32  e1000_write_sfp_data_byte(struct e1000_hw *hw, u16 offset, u8 data);
 s32  igb_copper_link_setup_82580(struct e1000_hw *hw);
 s32  igb_get_phy_info_82580(struct e1000_hw *hw);
 s32  igb_phy_force_speed_duplex_82580(struct e1000_hw *hw);
@@ -157,4 +159,22 @@ s32  igb_check_polarity_m88(struct e1000_hw *hw);
 #define GS40G_CS_POWER_DOWN		0x0002
 #define GS40G_LINE_LB			0x4000
 
+/* SFP modules ID memory locations */
+#define E1000_SFF_IDENTIFIER_OFFSET	0x00
+#define E1000_SFF_IDENTIFIER_SFF	0x02
+#define E1000_SFF_IDENTIFIER_SFP	0x03
+
+#define E1000_SFF_ETH_FLAGS_OFFSET	0x06
+/* Flags for SFP modules compatible with ETH up to 1Gb */
+struct e1000_sfp_flags {
+	u8 e1000_base_sx:1;
+	u8 e1000_base_lx:1;
+	u8 e1000_base_cx:1;
+	u8 e1000_base_t:1;
+	u8 e100_base_lx:1;
+	u8 e100_base_fx:1;
+	u8 e10_base_bx10:1;
+	u8 e10_base_px:1;
+};
+
 #endif
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 7876240f..4e54f84 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -142,6 +142,8 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575;
+	struct e1000_sfp_flags *eth_flags = &dev_spec->eth_flags;
 	u32 status;
 
 	if (hw->phy.media_type == e1000_media_type_copper) {
@@ -181,30 +183,22 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 		ecmd->phy_address = hw->phy.addr;
 		ecmd->transceiver = XCVR_INTERNAL;
 	} else {
-		ecmd->supported = (SUPPORTED_1000baseT_Full |
-				   SUPPORTED_100baseT_Full |
-				   SUPPORTED_FIBRE |
+		ecmd->supported = (SUPPORTED_FIBRE |
 				   SUPPORTED_Autoneg |
 				   SUPPORTED_Pause);
-		if (hw->mac.type == e1000_i354)
-				ecmd->supported |= SUPPORTED_2500baseX_Full;
-
 		ecmd->advertising = ADVERTISED_FIBRE;
-
-		switch (adapter->link_speed) {
-		case SPEED_2500:
-			ecmd->advertising = ADVERTISED_2500baseX_Full;
-			break;
-		case SPEED_1000:
-			ecmd->advertising = ADVERTISED_1000baseT_Full;
-			break;
-		case SPEED_100:
-			ecmd->advertising = ADVERTISED_100baseT_Full;
-			break;
-		default:
-			break;
+		if (hw->mac.type == e1000_i354) {
+			ecmd->supported |= SUPPORTED_2500baseX_Full;
+			ecmd->advertising |= ADVERTISED_2500baseX_Full;
+		}
+		if ((eth_flags->e1000_base_lx) || (eth_flags->e1000_base_sx)) {
+			ecmd->supported |= SUPPORTED_1000baseT_Full;
+			ecmd->advertising |= ADVERTISED_1000baseT_Full;
+		}
+		if (eth_flags->e100_base_fx) {
+			ecmd->supported |= SUPPORTED_100baseT_Full;
+			ecmd->advertising |= ADVERTISED_100baseT_Full;
 		}
-
 		if (hw->mac.autoneg == 1)
 			ecmd->advertising |= ADVERTISED_Autoneg;
 
-- 
cgit v0.10.2


From 373e6978f9c5c05af3b3ec4cd0295b0bfbe11644 Mon Sep 17 00:00:00 2001
From: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Date: Fri, 29 Mar 2013 15:22:17 +0000
Subject: igb: SerDes flow control setting

This path allows users to get appropriate flow control setting on SerDes
devices, based on original implementation for Copper devices.
Also, since 100baseFX does not support setting flow control, so exclude
it from the setting mechanism.

Signed-off-by: Akeem G. Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 4e54f84..7b25ee2 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -164,21 +164,6 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 			ecmd->advertising |= hw->phy.autoneg_advertised;
 		}
 
-		if (hw->mac.autoneg != 1)
-			ecmd->advertising &= ~(ADVERTISED_Pause |
-					       ADVERTISED_Asym_Pause);
-
-		if (hw->fc.requested_mode == e1000_fc_full)
-			ecmd->advertising |= ADVERTISED_Pause;
-		else if (hw->fc.requested_mode == e1000_fc_rx_pause)
-			ecmd->advertising |= (ADVERTISED_Pause |
-					      ADVERTISED_Asym_Pause);
-		else if (hw->fc.requested_mode == e1000_fc_tx_pause)
-			ecmd->advertising |=  ADVERTISED_Asym_Pause;
-		else
-			ecmd->advertising &= ~(ADVERTISED_Pause |
-					       ADVERTISED_Asym_Pause);
-
 		ecmd->port = PORT_TP;
 		ecmd->phy_address = hw->phy.addr;
 		ecmd->transceiver = XCVR_INTERNAL;
@@ -206,6 +191,21 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 		ecmd->transceiver = XCVR_EXTERNAL;
 	}
 
+	if (hw->mac.autoneg != 1)
+		ecmd->advertising &= ~(ADVERTISED_Pause |
+				       ADVERTISED_Asym_Pause);
+
+	if (hw->fc.requested_mode == e1000_fc_full)
+		ecmd->advertising |= ADVERTISED_Pause;
+	else if (hw->fc.requested_mode == e1000_fc_rx_pause)
+		ecmd->advertising |= (ADVERTISED_Pause |
+				      ADVERTISED_Asym_Pause);
+	else if (hw->fc.requested_mode == e1000_fc_tx_pause)
+		ecmd->advertising |=  ADVERTISED_Asym_Pause;
+	else
+		ecmd->advertising &= ~(ADVERTISED_Pause |
+				       ADVERTISED_Asym_Pause);
+
 	status = rd32(E1000_STATUS);
 
 	if (status & E1000_STATUS_LU) {
@@ -386,6 +386,10 @@ static int igb_set_pauseparam(struct net_device *netdev,
 	struct e1000_hw *hw = &adapter->hw;
 	int retval = 0;
 
+	/* 100basefx does not support setting link flow control */
+	if (hw->dev_spec._82575.eth_flags.e100_base_fx)
+		return -EINVAL;
+
 	adapter->fc_autoneg = pause->autoneg;
 
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
-- 
cgit v0.10.2


From 2a0a0f1ea27ac39afd25c741a1ccc53bc5530acf Mon Sep 17 00:00:00 2001
From: Carolyn Wyborny <carolyn.wyborny@intel.com>
Date: Thu, 25 Apr 2013 17:22:34 +0000
Subject: igb: Fix set_ethtool function to call update nvm for entire image

This patch fixes a problem where we were only checking to update checksum
on first part of nvm image.  Newer parts have multiple checksum fields and
checksum function will accommodate that as long as we call it in the first
place for any changes made.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 7b25ee2..85fe7b5 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -811,10 +811,8 @@ static int igb_set_eeprom(struct net_device *netdev,
 	ret_val = hw->nvm.ops.write(hw, first_word,
 				    last_word - first_word + 1, eeprom_buff);
 
-	/* Update the checksum over the first part of the EEPROM if needed
-	 * and flush shadow RAM for 82573 controllers
-	 */
-	if ((ret_val == 0) && ((first_word <= NVM_CHECKSUM_REG)))
+	/* Update the checksum if nvm write succeeded */
+	if (ret_val == 0)
 		hw->nvm.ops.update(hw);
 
 	igb_set_fw_version(adapter);
-- 
cgit v0.10.2


From 41f149a285da21529bc9a0bad323df53b2f17b16 Mon Sep 17 00:00:00 2001
From: Carolyn Wyborny <carolyn.wyborny@intel.com>
Date: Tue, 30 Apr 2013 00:21:32 +0000
Subject: igb: Fix possible panic caused by Rx traffic arrival while interface
 is down

This patch reorders disabling napi and irqs during igb_down.
This is done to avoid possible panic's found in other Intel drivers
when Rx traffic arrives while interface is going down.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 2c8f7e0..6a0c1b6 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1667,10 +1667,13 @@ void igb_down(struct igb_adapter *adapter)
 	wrfl();
 	msleep(10);
 
-	for (i = 0; i < adapter->num_q_vectors; i++)
+	igb_irq_disable(adapter);
+
+	for (i = 0; i < adapter->num_q_vectors; i++) {
+		napi_synchronize(&(adapter->q_vector[i]->napi));
 		napi_disable(&(adapter->q_vector[i]->napi));
+	}
 
-	igb_irq_disable(adapter);
 
 	del_timer_sync(&adapter->watchdog_timer);
 	del_timer_sync(&adapter->phy_info_timer);
-- 
cgit v0.10.2


From 6f8b916065596d80843bb7d4f601ef72b3223c54 Mon Sep 17 00:00:00 2001
From: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Date: Wed, 1 May 2013 05:44:45 +0000
Subject: igb: Implementation of i210/i211 LED support

This patch fixes LED issues with i210 and i211 devices, due to changes in the
device registers.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/e1000_i210.h b/drivers/net/ethernet/intel/igb/e1000_i210.h
index bfc08e0..5caa332 100644
--- a/drivers/net/ethernet/intel/igb/e1000_i210.h
+++ b/drivers/net/ethernet/intel/igb/e1000_i210.h
@@ -82,11 +82,11 @@ enum E1000_INVM_STRUCTURE_TYPE {
 #define E1000_INVM_MAJOR_SHIFT		4
 
 #define ID_LED_DEFAULT_I210		((ID_LED_OFF1_ON2  << 8) | \
-					 (ID_LED_OFF1_OFF2 <<  4) | \
-					 (ID_LED_DEF1_DEF2))
+					 (ID_LED_DEF1_DEF2 <<  4) | \
+					 (ID_LED_OFF1_OFF2))
 #define ID_LED_DEFAULT_I210_SERDES	((ID_LED_DEF1_DEF2 << 8) | \
 					 (ID_LED_DEF1_DEF2 <<  4) | \
-					 (ID_LED_DEF1_DEF2))
+					 (ID_LED_OFF1_ON2))
 
 /* NVM offset defaults for i211 device */
 #define NVM_INIT_CTRL_2_DEFAULT_I211	0X7243
diff --git a/drivers/net/ethernet/intel/igb/e1000_mac.c b/drivers/net/ethernet/intel/igb/e1000_mac.c
index 660b7ad..bab556a 100644
--- a/drivers/net/ethernet/intel/igb/e1000_mac.c
+++ b/drivers/net/ethernet/intel/igb/e1000_mac.c
@@ -1332,7 +1332,13 @@ s32 igb_id_led_init(struct e1000_hw *hw)
 	u16 data, i, temp;
 	const u16 led_mask = 0x0F;
 
-	ret_val = igb_valid_led_default(hw, &data);
+	/* i210 and i211 devices have different LED mechanism */
+	if ((hw->mac.type == e1000_i210) ||
+	    (hw->mac.type == e1000_i211))
+		ret_val = igb_valid_led_default_i210(hw, &data);
+	else
+		ret_val = igb_valid_led_default(hw, &data);
+
 	if (ret_val)
 		goto out;
 
-- 
cgit v0.10.2


From f7727c53094bd1122351a14a2087585f46009c04 Mon Sep 17 00:00:00 2001
From: "Akeem G. Abodunrin" <akeem.g.abodunrin@intel.com>
Date: Wed, 15 May 2013 07:41:30 +0000
Subject: igb: Removed unused i2c function

This patch removes unused i2c function definition.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index a905707..15ea8dc 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -322,11 +322,6 @@ static inline int igb_desc_unused(struct igb_ring *ring)
 	return ring->count + ring->next_to_clean - ring->next_to_use - 1;
 }
 
-struct igb_i2c_client_list {
-	struct i2c_client *client;
-	struct igb_i2c_client_list *next;
-};
-
 #ifdef CONFIG_IGB_HWMON
 
 #define IGB_HWMON_TYPE_LOC	0
-- 
cgit v0.10.2


From e8915bebb4b33c63d6e08161edc3fbda32a840a7 Mon Sep 17 00:00:00 2001
From: Amir Hanania <amir.hanania@intel.com>
Date: Thu, 18 Apr 2013 04:23:52 +0000
Subject: IXGBE: Set the SW prio_tc values at initialization to the HW setting.

Set the SW prio_tc values at initialization to the HW setting.
Setting the SW prio_tc default values to be the HW setting by reading the
rtrup2tc register. For any TC change we need to reset the device.
This will remove the need to reset the device at the first
time we call ixgbe_dcbnl_ieee_setets.

Signed-off-by: Amir Hanania <amir.hanania@intel.com>
Tested-by: Jack Morgan<jack.morgan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c
index 1f2c805..e055e00 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.c
@@ -380,3 +380,26 @@ s32 ixgbe_dcb_hw_ets_config(struct ixgbe_hw *hw,
 	}
 	return 0;
 }
+
+static void ixgbe_dcb_read_rtrup2tc_82599(struct ixgbe_hw *hw, u8 *map)
+{
+	u32 reg, i;
+
+	reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC);
+	for (i = 0; i < MAX_USER_PRIORITY; i++)
+		map[i] = IXGBE_RTRUP2TC_UP_MASK &
+			(reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT));
+	return;
+}
+
+void ixgbe_dcb_read_rtrup2tc(struct ixgbe_hw *hw, u8 *map)
+{
+	switch (hw->mac.type) {
+	case ixgbe_mac_82599EB:
+	case ixgbe_mac_X540:
+		ixgbe_dcb_read_rtrup2tc_82599(hw, map);
+		break;
+	default:
+		break;
+	}
+}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h
index 1634de8..fc0a2dd 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb.h
@@ -159,6 +159,8 @@ s32 ixgbe_dcb_hw_ets_config(struct ixgbe_hw *hw, u16 *refill, u16 *max,
 s32 ixgbe_dcb_hw_pfc_config(struct ixgbe_hw *hw, u8 pfc_en, u8 *tc_prio);
 s32 ixgbe_dcb_hw_config(struct ixgbe_hw *, struct ixgbe_dcb_config *);
 
+void ixgbe_dcb_read_rtrup2tc(struct ixgbe_hw *hw, u8 *map);
+
 /* DCB definitions for credit calculation */
 #define DCB_CREDIT_QUANTUM	64   /* DCB Quantum */
 #define MAX_CREDIT_REFILL       511  /* 0x1FF * 64B = 32704B */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82599.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82599.h
index a4ef076..d71d9ce 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82599.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_82599.h
@@ -45,6 +45,7 @@
 
 /* Receive UP2TC mapping */
 #define IXGBE_RTRUP2TC_UP_SHIFT 3
+#define IXGBE_RTRUP2TC_UP_MASK	7
 /* Transmit UP2TC mapping */
 #define IXGBE_RTTUP2TC_UP_SHIFT 3
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
index f3d68f9..edd89a1 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_dcb_nl.c
@@ -554,6 +554,9 @@ static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,
 		for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
 			adapter->ixgbe_ieee_ets->prio_tc[i] =
 				IEEE_8021QAZ_MAX_TCS;
+		/* if possible update UP2TC mappings from HW */
+		ixgbe_dcb_read_rtrup2tc(&adapter->hw,
+					adapter->ixgbe_ieee_ets->prio_tc);
 	}
 
 	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
-- 
cgit v0.10.2


From 54ca193310bbd33bdf8b2634b6a3115dd8665013 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 1 May 2013 17:17:29 +0200
Subject: rt2x00: rt2x00dev: use rt2x00dev->tx->limit

The TX data queue is initialized already when
the rt2x00lib_probe_hw() function is called.

Fetch the number of the queue entries from that
instead of using the entry_num field of the data
queue descriptor.

The two values are the same, and the use of the
rt2x00dev->tx->limit value allows us to get rid
of a superfluous pointer dereference.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 90dc143..b287467 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1077,7 +1077,7 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev)
 		 */
 		int kfifo_size =
 			roundup_pow_of_two(rt2x00dev->ops->tx_queues *
-					   rt2x00dev->ops->tx->entry_num *
+					   rt2x00dev->tx->limit *
 					   sizeof(u32));
 
 		status = kfifo_alloc(&rt2x00dev->txstatus_fifo, kfifo_size,
-- 
cgit v0.10.2


From 98cd6c718c6e782d3b01e3fc3da00cf18c114586 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 1 May 2013 17:17:30 +0200
Subject: rt2x00: rt61pci: use rt2x00dev->tx->limit

The TX data queue is initialized already when
the rt61pci_txdone() function is called.

Fetch the number of the queue entries from that
instead of using the entry_num field of the data
queue descriptor.

The two values are the same, and the use of the
rt2x00dev->tx->limit value allows us to get rid
of a superfluous pointer dereference.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 0dc8180..7e1759b 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2175,7 +2175,7 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
 	 * that the TX_STA_FIFO stack has a size of 16. We stick to our
 	 * tx ring size for now.
 	 */
-	for (i = 0; i < rt2x00dev->ops->tx->entry_num; i++) {
+	for (i = 0; i < rt2x00dev->tx->limit; i++) {
 		rt2x00mmio_register_read(rt2x00dev, STA_CSR4, &reg);
 		if (!rt2x00_get_field32(reg, STA_CSR4_VALID))
 			break;
-- 
cgit v0.10.2


From 1cfcbe4cd4033ada0e18051b55e7dcab9bde36e3 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 1 May 2013 17:17:31 +0200
Subject: rt2x00: rt2800pci: use rt2x00dev->tx->limit

The TX data queue is initialized already when
the rt2800pci_txstatus_interrupt() function is
called.

Fetch the number of the queue entries from that
instead of using the entry_num field of the data
queue descriptor.

The two values are the same, and the use of the
rt2x00dev->tx->limit value allows us to get rid
of a superfluous pointer dereference.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 6f4a861..330f1d2 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -1014,7 +1014,7 @@ static void rt2800pci_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
 	 * Since we have only one producer and one consumer we don't
 	 * need to lock the kfifo.
 	 */
-	for (i = 0; i < rt2x00dev->ops->tx->entry_num; i++) {
+	for (i = 0; i < rt2x00dev->tx->limit; i++) {
 		rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO, &status);
 
 		if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID))
-- 
cgit v0.10.2


From 3a28c8ac15ecbb6ee93f7c35745f75dee1018cd7 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 1 May 2013 17:17:32 +0200
Subject: rt2x00: rt2800usb: use rt2x00dev->rx->limit

The RX data queue is initialized already when
the rt2800_usb_enable_radio() function is called.

Fetch the number of the queue entries from that
instead of using the entry_num field of the data
queue descriptor.

The two values are the same, and the use of the
rt2x00dev->rx->limit value allows us to get rid
of a superfluous pointer dereference.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index ac854d7..c71a48d 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -327,7 +327,7 @@ static int rt2800usb_enable_radio(struct rt2x00_dev *rt2x00dev)
 	 * this limit so reduce the number to prevent errors.
 	 */
 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_LIMIT,
-			   ((rt2x00dev->ops->rx->entry_num * DATA_FRAME_SIZE)
+			   ((rt2x00dev->rx->limit * DATA_FRAME_SIZE)
 			    / 1024) - 3);
 	rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_EN, 1);
 	rt2x00_set_field32(&reg, USB_DMA_CFG_TX_BULK_EN, 1);
-- 
cgit v0.10.2


From 0879f8750826f53a9fa1a40695bda01830c9a856 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 1 May 2013 17:17:33 +0200
Subject: rt2x00: rt2800lib: use rt2x00dev->bcn->winfo_size

The beacon data queue is initialized already when
the rt2800_clear_beacon_register() function is called.

Fetch the size of the TXWI descriptor from that
instead of using the winfo_size field of the data
queue descriptor.

The two values are the same, and the use of the
rt2x00dev->bcn->winfo_size value allows us to
get rid of a superfluous pointer dereference.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index b52d70c..bddfd6d 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -840,7 +840,7 @@ static inline void rt2800_clear_beacon_register(struct rt2x00_dev *rt2x00dev,
 						unsigned int beacon_base)
 {
 	int i;
-	const int txwi_desc_size = rt2x00dev->ops->bcn->winfo_size;
+	const int txwi_desc_size = rt2x00dev->bcn->winfo_size;
 
 	/*
 	 * For the Beacon base registers we only need to clear
-- 
cgit v0.10.2


From e9e433032c83b28b3c41470bf91ecf597a78a3fc Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 1 May 2013 17:17:34 +0200
Subject: rt2x00: rt2x00dev: defer operational mode detection

Only do it after the queues are allocated. This
will allow to use the 'rt2x00dev->bcn->limit'
instead of 'rt2x00dev->ops->bcn->entry_num'.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index b287467..6a20172 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1301,23 +1301,6 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
 		(rt2x00dev->ops->max_ap_intf - 1);
 
 	/*
-	 * Determine which operating modes are supported, all modes
-	 * which require beaconing, depend on the availability of
-	 * beacon entries.
-	 */
-	rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
-	if (rt2x00dev->ops->bcn->entry_num > 0)
-		rt2x00dev->hw->wiphy->interface_modes |=
-		    BIT(NL80211_IFTYPE_ADHOC) |
-		    BIT(NL80211_IFTYPE_AP) |
-#ifdef CONFIG_MAC80211_MESH
-		    BIT(NL80211_IFTYPE_MESH_POINT) |
-#endif
-		    BIT(NL80211_IFTYPE_WDS);
-
-	rt2x00dev->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
-
-	/*
 	 * Initialize work.
 	 */
 	rt2x00dev->workqueue =
@@ -1348,6 +1331,23 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
 		goto exit;
 
 	/*
+	 * Determine which operating modes are supported, all modes
+	 * which require beaconing, depend on the availability of
+	 * beacon entries.
+	 */
+	rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+	if (rt2x00dev->ops->bcn->entry_num > 0)
+		rt2x00dev->hw->wiphy->interface_modes |=
+		    BIT(NL80211_IFTYPE_ADHOC) |
+		    BIT(NL80211_IFTYPE_AP) |
+#ifdef CONFIG_MAC80211_MESH
+		    BIT(NL80211_IFTYPE_MESH_POINT) |
+#endif
+		    BIT(NL80211_IFTYPE_WDS);
+
+	rt2x00dev->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
+
+	/*
 	 * Initialize ieee80211 structure.
 	 */
 	retval = rt2x00lib_probe_hw(rt2x00dev);
-- 
cgit v0.10.2


From 9483f40d8d01918b399b4e24d0c1111db0afffeb Mon Sep 17 00:00:00 2001
From: Jakub Kicinski <kubakici@wp.pl>
Date: Tue, 7 May 2013 00:28:50 +0200
Subject: rt2x00pci: Use PCI MSIs whenever possible

All PCIe devices must support MSIs, make use of them.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index dc49e52..76d95de 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -105,11 +105,13 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct rt2x00_ops *ops)
 		goto exit_release_regions;
 	}
 
+	pci_enable_msi(pci_dev);
+
 	hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
 	if (!hw) {
 		rt2x00_probe_err("Failed to allocate hardware\n");
 		retval = -ENOMEM;
-		goto exit_release_regions;
+		goto exit_disable_msi;
 	}
 
 	pci_set_drvdata(pci_dev, hw);
@@ -150,6 +152,9 @@ exit_free_reg:
 exit_free_device:
 	ieee80211_free_hw(hw);
 
+exit_disable_msi:
+	pci_disable_msi(pci_dev);
+
 exit_release_regions:
 	pci_release_regions(pci_dev);
 
@@ -174,6 +179,8 @@ void rt2x00pci_remove(struct pci_dev *pci_dev)
 	rt2x00pci_free_reg(rt2x00dev);
 	ieee80211_free_hw(hw);
 
+	pci_disable_msi(pci_dev);
+
 	/*
 	 * Free the PCI device data.
 	 */
-- 
cgit v0.10.2


From cf657a2bc50dff0191d55fff4e7b31e7a6a542a5 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Wed, 8 May 2013 05:03:30 +0530
Subject: ath9k: Remove MAC_DEBUG

This option has not been enabled by default in any
distribution, has never been enabled in OpenWrt and no developer
has asked for this information in a bug report.

Dumping pages of random values doesn't help debugging,
remove this option (along with the vmalloc() abuse).

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index 17507dc..ec33c80 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -84,14 +84,6 @@ config ATH9K_DFS_CERTIFIED
 	  developed. At this point enabling this option won't do anything
 	  except increase code size.
 
-config ATH9K_MAC_DEBUG
-	bool "Atheros MAC statistics"
-	depends on ATH9K_DEBUGFS
-	default y
-	---help---
-	  This option enables collection of statistics for Rx/Tx status
-	  data and some other MAC related statistics
-
 config ATH9K_RATE_CONTROL
 	bool "Atheros ath9k rate control"
 	depends on ATH9K
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index e6307b8..fc96ad3 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -738,8 +738,6 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 		       struct ath_tx_status *ts, struct ath_txq *txq,
 		       unsigned int flags)
 {
-#define TX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].ts\
-			[sc->debug.tsidx].c)
 	int qnum = txq->axq_qnum;
 
 	TX_STAT_INC(qnum, tx_pkts_all);
@@ -771,37 +769,6 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 		TX_STAT_INC(qnum, data_underrun);
 	if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 		TX_STAT_INC(qnum, delim_underrun);
-
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	spin_lock(&sc->debug.samp_lock);
-	TX_SAMP_DBG(jiffies) = jiffies;
-	TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0;
-	TX_SAMP_DBG(rssi_ctl1) = ts->ts_rssi_ctl1;
-	TX_SAMP_DBG(rssi_ctl2) = ts->ts_rssi_ctl2;
-	TX_SAMP_DBG(rssi_ext0) = ts->ts_rssi_ext0;
-	TX_SAMP_DBG(rssi_ext1) = ts->ts_rssi_ext1;
-	TX_SAMP_DBG(rssi_ext2) = ts->ts_rssi_ext2;
-	TX_SAMP_DBG(rateindex) = ts->ts_rateindex;
-	TX_SAMP_DBG(isok) = !!(ts->ts_status & ATH9K_TXERR_MASK);
-	TX_SAMP_DBG(rts_fail_cnt) = ts->ts_shortretry;
-	TX_SAMP_DBG(data_fail_cnt) = ts->ts_longretry;
-	TX_SAMP_DBG(rssi) = ts->ts_rssi;
-	TX_SAMP_DBG(tid) = ts->tid;
-	TX_SAMP_DBG(qid) = ts->qid;
-
-	if (ts->ts_flags & ATH9K_TX_BA) {
-		TX_SAMP_DBG(ba_low) = ts->ba_low;
-		TX_SAMP_DBG(ba_high) = ts->ba_high;
-	} else {
-		TX_SAMP_DBG(ba_low) = 0;
-		TX_SAMP_DBG(ba_high) = 0;
-	}
-
-	sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES;
-	spin_unlock(&sc->debug.samp_lock);
-#endif
-
-#undef TX_SAMP_DBG
 }
 
 static const struct file_operations fops_xmit = {
@@ -915,8 +882,6 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 {
 #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++
-#define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\
-			[sc->debug.rsidx].c)
 
 	RX_STAT_INC(rx_pkts_all);
 	sc->debug.stats.rxstats.rx_bytes_all += rs->rs_datalen;
@@ -940,27 +905,7 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 			RX_PHY_ERR_INC(rs->rs_phyerr);
 	}
 
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	spin_lock(&sc->debug.samp_lock);
-	RX_SAMP_DBG(jiffies) = jiffies;
-	RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
-	RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1;
-	RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2;
-	RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0;
-	RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1;
-	RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2;
-	RX_SAMP_DBG(antenna) = rs->rs_antenna;
-	RX_SAMP_DBG(rssi) = rs->rs_rssi;
-	RX_SAMP_DBG(rate) = rs->rs_rate;
-	RX_SAMP_DBG(is_mybeacon) = rs->is_mybeacon;
-
-	sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES;
-	spin_unlock(&sc->debug.samp_lock);
-
-#endif
-
 #undef RX_PHY_ERR_INC
-#undef RX_SAMP_DBG
 }
 
 static const struct file_operations fops_recv = {
@@ -1485,283 +1430,6 @@ static const struct file_operations fops_modal_eeprom = {
 	.llseek = default_llseek,
 };
 
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-
-void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
-{
-#define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c)
-	struct ath_hw *ah = sc->sc_ah;
-	struct ath_common *common = ath9k_hw_common(ah);
-	unsigned long flags;
-	int i;
-
-	ath9k_ps_wakeup(sc);
-
-	spin_lock_bh(&sc->debug.samp_lock);
-
-	spin_lock_irqsave(&common->cc_lock, flags);
-	ath_hw_cycle_counters_update(common);
-
-	ATH_SAMP_DBG(cc.cycles) = common->cc_ani.cycles;
-	ATH_SAMP_DBG(cc.rx_busy) = common->cc_ani.rx_busy;
-	ATH_SAMP_DBG(cc.rx_frame) = common->cc_ani.rx_frame;
-	ATH_SAMP_DBG(cc.tx_frame) = common->cc_ani.tx_frame;
-	spin_unlock_irqrestore(&common->cc_lock, flags);
-
-	ATH_SAMP_DBG(noise) = ah->noise;
-
-	REG_WRITE_D(ah, AR_MACMISC,
-		  ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
-		   (AR_MACMISC_MISC_OBS_BUS_1 <<
-		    AR_MACMISC_MISC_OBS_BUS_MSB_S)));
-
-	for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
-		ATH_SAMP_DBG(dma_dbg_reg_vals[i]) = REG_READ_D(ah,
-				AR_DMADBG_0 + (i * sizeof(u32)));
-
-	ATH_SAMP_DBG(pcu_obs) = REG_READ_D(ah, AR_OBS_BUS_1);
-	ATH_SAMP_DBG(pcu_cr) = REG_READ_D(ah, AR_CR);
-
-	memcpy(ATH_SAMP_DBG(nfCalHist), sc->caldata.nfCalHist,
-			sizeof(ATH_SAMP_DBG(nfCalHist)));
-
-	sc->debug.sampidx = (sc->debug.sampidx + 1) % ATH_DBG_MAX_SAMPLES;
-	spin_unlock_bh(&sc->debug.samp_lock);
-	ath9k_ps_restore(sc);
-
-#undef ATH_SAMP_DBG
-}
-
-static int open_file_bb_mac_samps(struct inode *inode, struct file *file)
-{
-#define ATH_SAMP_DBG(c) bb_mac_samp[sampidx].c
-	struct ath_softc *sc = inode->i_private;
-	struct ath_hw *ah = sc->sc_ah;
-	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
-	struct ath_dbg_bb_mac_samp *bb_mac_samp;
-	struct ath9k_nfcal_hist *h;
-	int i, j, qcuOffset = 0, dcuOffset = 0;
-	u32 *qcuBase, *dcuBase, size = 30000, len = 0;
-	u32 sampidx = 0;
-	u8 *buf;
-	u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
-	u8 nread;
-
-	if (test_bit(SC_OP_INVALID, &sc->sc_flags))
-		return -EAGAIN;
-
-	buf = vmalloc(size);
-	if (!buf)
-		return -ENOMEM;
-	bb_mac_samp = vmalloc(sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
-	if (!bb_mac_samp) {
-		vfree(buf);
-		return -ENOMEM;
-	}
-	/* Account the current state too */
-	ath9k_debug_samp_bb_mac(sc);
-
-	spin_lock_bh(&sc->debug.samp_lock);
-	memcpy(bb_mac_samp, sc->debug.bb_mac_samp,
-			sizeof(*bb_mac_samp) * ATH_DBG_MAX_SAMPLES);
-	len += snprintf(buf + len, size - len,
-			"Current Sample Index: %d\n", sc->debug.sampidx);
-	spin_unlock_bh(&sc->debug.samp_lock);
-
-	len += snprintf(buf + len, size - len,
-			"Raw DMA Debug Dump:\n");
-	len += snprintf(buf + len, size - len, "Sample |\t");
-	for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
-		len += snprintf(buf + len, size - len, " DMA Reg%d |\t", i);
-	len += snprintf(buf + len, size - len, "\n");
-
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		len += snprintf(buf + len, size - len, "%d\t", sampidx);
-
-		for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++)
-			len += snprintf(buf + len, size - len, " %08x\t",
-					ATH_SAMP_DBG(dma_dbg_reg_vals[i]));
-		len += snprintf(buf + len, size - len, "\n");
-	}
-	len += snprintf(buf + len, size - len, "\n");
-
-	len += snprintf(buf + len, size - len,
-			"Sample Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
-		dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
-
-		for (i = 0; i < ATH9K_NUM_QUEUES; i++,
-				qcuOffset += 4, dcuOffset += 5) {
-			if (i == 8) {
-				qcuOffset = 0;
-				qcuBase++;
-			}
-
-			if (i == 6) {
-				dcuOffset = 0;
-				dcuBase++;
-			}
-			if (!sc->debug.stats.txstats[i].queued)
-				continue;
-
-			len += snprintf(buf + len, size - len,
-				"%4d %7d    %2x      %1x     %2x         %2x\n",
-				sampidx, i,
-				(*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
-				(*qcuBase & (0x8 << qcuOffset)) >>
-				(qcuOffset + 3),
-				ATH_SAMP_DBG(dma_dbg_reg_vals[2]) &
-				(0x7 << (i * 3)) >> (i * 3),
-				(*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
-		}
-		len += snprintf(buf + len, size - len, "\n");
-	}
-	len += snprintf(buf + len, size - len,
-			"samp qcu_sh qcu_fh qcu_comp dcu_comp dcu_arb dcu_fp "
-			"ch_idle_dur ch_idle_dur_val txfifo_val0 txfifo_val1 "
-			"txfifo_dcu0 txfifo_dcu1 pcu_obs AR_CR\n");
-
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		qcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[0]);
-		dcuBase = &ATH_SAMP_DBG(dma_dbg_reg_vals[4]);
-
-		len += snprintf(buf + len, size - len, "%4d %5x %5x ", sampidx,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x003c0000) >> 18,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x03c00000) >> 22);
-		len += snprintf(buf + len, size - len, "%7x %8x ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[3]) & 0x1c000000) >> 26,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x3));
-		len += snprintf(buf + len, size - len, "%7x %7x ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x06000000) >> 25,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[5]) & 0x38000000) >> 27);
-		len += snprintf(buf + len, size - len, "%7d %12d ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x000003fc) >> 2,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000400) >> 10);
-		len += snprintf(buf + len, size - len, "%12d %12d ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00000800) >> 11,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x00001000) >> 12);
-		len += snprintf(buf + len, size - len, "%12d %12d ",
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x0001e000) >> 13,
-			(ATH_SAMP_DBG(dma_dbg_reg_vals[6]) & 0x001e0000) >> 17);
-		len += snprintf(buf + len, size - len, "0x%07x 0x%07x\n",
-				ATH_SAMP_DBG(pcu_obs), ATH_SAMP_DBG(pcu_cr));
-	}
-
-	len += snprintf(buf + len, size - len,
-			"Sample ChNoise Chain privNF #Reading Readings\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		h = ATH_SAMP_DBG(nfCalHist);
-		if (!ATH_SAMP_DBG(noise))
-			continue;
-
-		for (i = 0; i < NUM_NF_READINGS; i++) {
-			if (!(chainmask & (1 << i)) ||
-			    ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
-				continue;
-
-			nread = AR_PHY_CCA_FILTERWINDOW_LENGTH -
-				h[i].invalidNFcount;
-			len += snprintf(buf + len, size - len,
-					"%4d %5d %4d\t   %d\t %d\t",
-					sampidx, ATH_SAMP_DBG(noise),
-					i, h[i].privNF, nread);
-			for (j = 0; j < nread; j++)
-				len += snprintf(buf + len, size - len,
-					" %d", h[i].nfCalBuffer[j]);
-			len += snprintf(buf + len, size - len, "\n");
-		}
-	}
-	len += snprintf(buf + len, size - len, "\nCycle counters:\n"
-			"Sample Total    Rxbusy   Rxframes Txframes\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		if (!ATH_SAMP_DBG(cc.cycles))
-			continue;
-		len += snprintf(buf + len, size - len,
-				"%4d %08x %08x %08x %08x\n",
-				sampidx, ATH_SAMP_DBG(cc.cycles),
-				ATH_SAMP_DBG(cc.rx_busy),
-				ATH_SAMP_DBG(cc.rx_frame),
-				ATH_SAMP_DBG(cc.tx_frame));
-	}
-
-	len += snprintf(buf + len, size - len, "Tx status Dump :\n");
-	len += snprintf(buf + len, size - len,
-			"Sample rssi:- ctl0 ctl1 ctl2 ext0 ext1 ext2 comb "
-			"isok rts_fail data_fail rate tid qid "
-					"ba_low  ba_high tx_before(ms)\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
-			if (!ATH_SAMP_DBG(ts[i].jiffies))
-				continue;
-			len += snprintf(buf + len, size - len, "%-14d"
-				"%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-4d %-8d "
-				"%-9d %-4d %-3d %-3d %08x %08x %-11d\n",
-				sampidx,
-				ATH_SAMP_DBG(ts[i].rssi_ctl0),
-				ATH_SAMP_DBG(ts[i].rssi_ctl1),
-				ATH_SAMP_DBG(ts[i].rssi_ctl2),
-				ATH_SAMP_DBG(ts[i].rssi_ext0),
-				ATH_SAMP_DBG(ts[i].rssi_ext1),
-				ATH_SAMP_DBG(ts[i].rssi_ext2),
-				ATH_SAMP_DBG(ts[i].rssi),
-				ATH_SAMP_DBG(ts[i].isok),
-				ATH_SAMP_DBG(ts[i].rts_fail_cnt),
-				ATH_SAMP_DBG(ts[i].data_fail_cnt),
-				ATH_SAMP_DBG(ts[i].rateindex),
-				ATH_SAMP_DBG(ts[i].tid),
-				ATH_SAMP_DBG(ts[i].qid),
-				ATH_SAMP_DBG(ts[i].ba_low),
-				ATH_SAMP_DBG(ts[i].ba_high),
-				jiffies_to_msecs(jiffies -
-					ATH_SAMP_DBG(ts[i].jiffies)));
-		}
-	}
-
-	len += snprintf(buf + len, size - len, "Rx status Dump :\n");
-	len += snprintf(buf + len, size - len, "Sample rssi:- ctl0 ctl1 ctl2 "
-			"ext0 ext1 ext2 comb beacon ant rate rx_before(ms)\n");
-	for (sampidx = 0; sampidx < ATH_DBG_MAX_SAMPLES; sampidx++) {
-		for (i = 0; i < ATH_DBG_MAX_SAMPLES; i++) {
-			if (!ATH_SAMP_DBG(rs[i].jiffies))
-				continue;
-			len += snprintf(buf + len, size - len, "%-14d"
-				"%-4d %-4d %-4d %-4d %-4d %-4d %-4d %-9s %-2d %02x %-13d\n",
-				sampidx,
-				ATH_SAMP_DBG(rs[i].rssi_ctl0),
-				ATH_SAMP_DBG(rs[i].rssi_ctl1),
-				ATH_SAMP_DBG(rs[i].rssi_ctl2),
-				ATH_SAMP_DBG(rs[i].rssi_ext0),
-				ATH_SAMP_DBG(rs[i].rssi_ext1),
-				ATH_SAMP_DBG(rs[i].rssi_ext2),
-				ATH_SAMP_DBG(rs[i].rssi),
-				ATH_SAMP_DBG(rs[i].is_mybeacon) ?
-				"True" : "False",
-				ATH_SAMP_DBG(rs[i].antenna),
-				ATH_SAMP_DBG(rs[i].rate),
-				jiffies_to_msecs(jiffies -
-					ATH_SAMP_DBG(rs[i].jiffies)));
-		}
-	}
-
-	vfree(bb_mac_samp);
-	file->private_data = buf;
-
-	return 0;
-#undef ATH_SAMP_DBG
-}
-
-static const struct file_operations fops_samps = {
-	.open = open_file_bb_mac_samps,
-	.read = ath9k_debugfs_read_buf,
-	.release = ath9k_debugfs_release_buf,
-	.owner = THIS_MODULE,
-	.llseek = default_llseek,
-};
-
-#endif
-
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
 				size_t count, loff_t *ppos)
@@ -2087,11 +1755,6 @@ int ath9k_init_debug(struct ath_hw *ah)
 	debugfs_create_file("spectral_fft_period", S_IRUSR | S_IWUSR,
 			    sc->debug.debugfs_phy, sc,
 			    &fops_spectral_fft_period);
-
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
-			    &fops_samps);
-#endif
 	debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
 			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
 	debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 794a7ec..62da19c 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -294,13 +294,6 @@ struct ath9k_debug {
 	struct dentry *debugfs_phy;
 	u32 regidx;
 	struct ath_stats stats;
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	spinlock_t samp_lock;
-	struct ath_dbg_bb_mac_samp bb_mac_samp[ATH_DBG_MAX_SAMPLES];
-	u8 sampidx;
-	u8 tsidx;
-	u8 rsidx;
-#endif
 };
 
 int ath9k_init_debug(struct ath_hw *ah);
@@ -359,17 +352,4 @@ static inline void ath_debug_stat_rx(struct ath_softc *sc,
 
 #endif /* CONFIG_ATH9K_DEBUGFS */
 
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-
-void ath9k_debug_samp_bb_mac(struct ath_softc *sc);
-
-#else
-
-static inline void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
-{
-}
-
-#endif
-
-
 #endif /* DEBUG_H */
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 0237b28..c7b888f 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -613,9 +613,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	spin_lock_init(&sc->sc_serial_rw);
 	spin_lock_init(&sc->sc_pm_lock);
 	mutex_init(&sc->mutex);
-#ifdef CONFIG_ATH9K_MAC_DEBUG
-	spin_lock_init(&sc->debug.samp_lock);
-#endif
 	tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
 	tasklet_init(&sc->bcon_tasklet, ath9k_beacon_tasklet,
 		     (unsigned long)sc);
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index 849259b..cc422a4 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -418,7 +418,6 @@ void ath_ani_calibrate(unsigned long data)
 		longcal ? "long" : "", shortcal ? "short" : "",
 		aniflag ? "ani" : "", common->ani.caldone ? "true" : "false");
 
-	ath9k_debug_samp_bb_mac(sc);
 	ath9k_ps_restore(sc);
 
 set_timer:
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 6963862..1cbfdd4 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -193,7 +193,6 @@ static bool ath_prepare_reset(struct ath_softc *sc)
 	ath_stop_ani(sc);
 	del_timer_sync(&sc->rx_poll_timer);
 
-	ath9k_debug_samp_bb_mac(sc);
 	ath9k_hw_disable_interrupts(ah);
 
 	if (!ath_drain_all_txq(sc))
-- 
cgit v0.10.2


From 73900cb068a2948d636feae0c8bc25cc2d568d6d Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Wed, 8 May 2013 05:03:31 +0530
Subject: ath9k: Use bitops for scan flag

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 8a1888d..579ed9c 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -646,6 +646,7 @@ enum sc_op_flags {
 	SC_OP_ANI_RUN,
 	SC_OP_PRIM_STA_VIF,
 	SC_OP_HW_RESET,
+	SC_OP_SCANNING,
 };
 
 /* Powersave flags */
@@ -759,7 +760,6 @@ struct ath_softc {
 	struct rchan *rfs_chan_spec_scan;
 	enum spectral_mode spectral_mode;
 	struct ath_spec_scan spec_config;
-	int scanning;
 
 #ifdef CONFIG_PM_SLEEP
 	atomic_t wow_got_bmiss_intr;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 1cbfdd4..ec6524a 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1272,7 +1272,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 				curchan->center_freq);
 		} else {
 			/* perform spectral scan if requested. */
-			if (sc->scanning &&
+			if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
 			    sc->spectral_mode == SPECTRAL_CHANSCAN)
 				ath9k_spectral_scan_trigger(hw);
 		}
@@ -2334,15 +2334,13 @@ static void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
 static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
 {
 	struct ath_softc *sc = hw->priv;
-
-	sc->scanning = 1;
+	set_bit(SC_OP_SCANNING, &sc->sc_flags);
 }
 
 static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
 {
 	struct ath_softc *sc = hw->priv;
-
-	sc->scanning = 0;
+	clear_bit(SC_OP_SCANNING, &sc->sc_flags);
 }
 
 struct ieee80211_ops ath9k_ops = {
-- 
cgit v0.10.2


From 7ca7c776dbc50cf1394dd95e971e7997a4ec025e Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Wed, 8 May 2013 05:03:32 +0530
Subject: ath9k: Do not use local_bh_disable in ampdu_action

This was added during the early conversion of ampdu_action
to a sleeping callback. There is no need to do this - instead,
use the normal mutex that is acquired for all callbacks.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index ec6524a..e6a3095 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1684,7 +1684,7 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 	struct ath_softc *sc = hw->priv;
 	int ret = 0;
 
-	local_bh_disable();
+	mutex_lock(&sc->mutex);
 
 	switch (action) {
 	case IEEE80211_AMPDU_RX_START:
@@ -1715,7 +1715,7 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
 		ath_err(ath9k_hw_common(sc->sc_ah), "Unknown AMPDU action\n");
 	}
 
-	local_bh_enable();
+	mutex_unlock(&sc->mutex);
 
 	return ret;
 }
-- 
cgit v0.10.2


From 594e65b633e0b76db1d8e7359e4efb2d60fba20d Mon Sep 17 00:00:00 2001
From: Javier Cardona <javier@cozybit.com>
Date: Wed, 8 May 2013 10:16:46 -0700
Subject: ath9k_htc: Add support for mesh interfaces

More specifically, enable AP-style beaconing on mesh
ifaces and change the hw capabilities to reflect mesh
support.

Coexistence with a virtual STA interface was tested as
working fine.

Signed-off-by: Javier Cardona <javier@cozybit.com>
[rebase, add iface combinations]
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index d3b099d..0085e64 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -208,6 +208,9 @@ struct ath9k_htc_target_rx_stats {
 		case NL80211_IFTYPE_AP:		\
 			_priv->num_ap_vif++;	\
 			break;			\
+		case NL80211_IFTYPE_MESH_POINT:	\
+			_priv->num_mbss_vif++;	\
+			break;			\
 		default:			\
 			break;			\
 		}				\
@@ -224,6 +227,9 @@ struct ath9k_htc_target_rx_stats {
 		case NL80211_IFTYPE_AP:		\
 			_priv->num_ap_vif--;	\
 			break;			\
+		case NL80211_IFTYPE_MESH_POINT:	\
+			_priv->num_mbss_vif--;	\
+			break;			\
 		default:			\
 			break;			\
 		}				\
@@ -450,6 +456,7 @@ struct ath9k_htc_priv {
 	u8 sta_slot;
 	u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];
 	u8 num_ibss_vif;
+	u8 num_mbss_vif;
 	u8 num_sta_vif;
 	u8 num_sta_assoc_vif;
 	u8 num_ap_vif;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
index f13f458..e0c03bd 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
@@ -28,7 +28,8 @@ void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
 
 	ath9k_hw_get_txq_props(ah, priv->beaconq, &qi);
 
-	if (priv->ah->opmode == NL80211_IFTYPE_AP) {
+	if (priv->ah->opmode == NL80211_IFTYPE_AP ||
+	    priv->ah->opmode == NL80211_IFTYPE_MESH_POINT) {
 		qi.tqi_aifs = 1;
 		qi.tqi_cwmin = 0;
 		qi.tqi_cwmax = 0;
@@ -628,6 +629,7 @@ void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
 	case NL80211_IFTYPE_ADHOC:
 		ath9k_htc_beacon_config_adhoc(priv, cur_conf);
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		ath9k_htc_beacon_config_ap(priv, cur_conf);
 		break;
@@ -649,6 +651,7 @@ void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv)
 	case NL80211_IFTYPE_ADHOC:
 		ath9k_htc_beacon_config_adhoc(priv, cur_conf);
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		ath9k_htc_beacon_config_ap(priv, cur_conf);
 		break;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index a47f5e0..6eb4199 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -698,7 +698,8 @@ static const struct ieee80211_iface_limit if_limits[] = {
 	{ .max = 2,	.types = BIT(NL80211_IFTYPE_STATION) |
 				 BIT(NL80211_IFTYPE_P2P_CLIENT) },
 	{ .max = 2,	.types = BIT(NL80211_IFTYPE_AP) |
-				 BIT(NL80211_IFTYPE_P2P_GO) },
+				 BIT(NL80211_IFTYPE_P2P_GO) |
+				 BIT(NL80211_IFTYPE_MESH_POINT) },
 };
 
 static const struct ieee80211_iface_combination if_comb = {
@@ -728,7 +729,8 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 		BIT(NL80211_IFTYPE_ADHOC) |
 		BIT(NL80211_IFTYPE_AP) |
 		BIT(NL80211_IFTYPE_P2P_GO) |
-		BIT(NL80211_IFTYPE_P2P_CLIENT);
+		BIT(NL80211_IFTYPE_P2P_CLIENT) |
+		BIT(NL80211_IFTYPE_MESH_POINT);
 
 	hw->wiphy->iface_combinations = &if_comb;
 	hw->wiphy->n_iface_combinations = 1;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 0743a47..2a67b57 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -113,7 +113,9 @@ static void ath9k_htc_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 	struct ath9k_htc_priv *priv = data;
 	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
 
-	if ((vif->type == NL80211_IFTYPE_AP) && bss_conf->enable_beacon)
+	if ((vif->type == NL80211_IFTYPE_AP ||
+	     vif->type == NL80211_IFTYPE_MESH_POINT) &&
+	    bss_conf->enable_beacon)
 		priv->reconfig_beacon = true;
 
 	if (bss_conf->assoc) {
@@ -180,6 +182,8 @@ static void ath9k_htc_set_opmode(struct ath9k_htc_priv *priv)
 		priv->ah->opmode = NL80211_IFTYPE_ADHOC;
 	else if (priv->num_ap_vif)
 		priv->ah->opmode = NL80211_IFTYPE_AP;
+	else if (priv->num_mbss_vif)
+		priv->ah->opmode = NL80211_IFTYPE_MESH_POINT;
 	else
 		priv->ah->opmode = NL80211_IFTYPE_STATION;
 
@@ -1052,6 +1056,9 @@ static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
 	case NL80211_IFTYPE_AP:
 		hvif.opmode = HTC_M_HOSTAP;
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
+		hvif.opmode = HTC_M_WDS;	/* close enough */
+		break;
 	default:
 		ath_err(common,
 			"Interface type %d not yet supported\n", vif->type);
@@ -1084,6 +1091,7 @@ static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
 	INC_VIF(priv, vif->type);
 
 	if ((vif->type == NL80211_IFTYPE_AP) ||
+	    (vif->type == NL80211_IFTYPE_MESH_POINT) ||
 	    (vif->type == NL80211_IFTYPE_ADHOC))
 		ath9k_htc_assign_bslot(priv, vif);
 
@@ -1134,6 +1142,7 @@ static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
 	DEC_VIF(priv, vif->type);
 
 	if ((vif->type == NL80211_IFTYPE_AP) ||
+	     vif->type == NL80211_IFTYPE_MESH_POINT ||
 	    (vif->type == NL80211_IFTYPE_ADHOC))
 		ath9k_htc_remove_bslot(priv, vif);
 
@@ -1525,9 +1534,10 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
 	if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon) {
 		/*
 		 * Disable SWBA interrupt only if there are no
-		 * AP/IBSS interfaces.
+		 * concurrent AP/mesh or IBSS interfaces.
 		 */
-		if ((priv->num_ap_vif <= 1) || priv->num_ibss_vif) {
+		if ((priv->num_ap_vif + priv->num_mbss_vif <= 1) ||
+		     priv->num_ibss_vif) {
 			ath_dbg(common, CONFIG,
 				"Beacon disabled for BSS: %pM\n",
 				bss_conf->bssid);
@@ -1538,12 +1548,15 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changed & BSS_CHANGED_BEACON_INT) {
 		/*
-		 * Reset the HW TSF for the first AP interface.
+		 * Reset the HW TSF for the first AP or mesh interface.
 		 */
-		if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
-		    (priv->nvifs == 1) &&
-		    (priv->num_ap_vif == 1) &&
-		    (vif->type == NL80211_IFTYPE_AP)) {
+		if (priv->nvifs == 1 &&
+		    ((priv->ah->opmode == NL80211_IFTYPE_AP &&
+		      vif->type == NL80211_IFTYPE_AP &&
+		      priv->num_ap_vif == 1) ||
+		    (priv->ah->opmode == NL80211_IFTYPE_MESH_POINT &&
+		      vif->type == NL80211_IFTYPE_MESH_POINT &&
+		      priv->num_mbss_vif == 1))) {
 			set_bit(OP_TSF_RESET, &priv->op_flags);
 		}
 		ath_dbg(common, CONFIG,
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index 6bd0e92..e602c95 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -887,7 +887,7 @@ u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv)
 	if (priv->rxfilter & FIF_PSPOLL)
 		rfilt |= ATH9K_RX_FILTER_PSPOLL;
 
-	if (priv->nvifs > 1)
+	if (priv->nvifs > 1 || priv->rxfilter & FIF_OTHER_BSS)
 		rfilt |= ATH9K_RX_FILTER_MCAST_BCAST_ALL;
 
 	return rfilt;
-- 
cgit v0.10.2


From bd4a85ee8cd6c80d844d0fc52108aebb9b1120c1 Mon Sep 17 00:00:00 2001
From: Javier Cardona <javier@cozybit.com>
Date: Wed, 8 May 2013 10:16:47 -0700
Subject: ath9k_htc: Claim support for mgmt frame protection

Advertise support for management frame protection in hardware.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 6eb4199..59f6436 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -722,6 +722,7 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 		IEEE80211_HW_SUPPORTS_PS |
 		IEEE80211_HW_PS_NULLFUNC_STACK |
 		IEEE80211_HW_REPORTS_TX_ACK_STATUS |
+		IEEE80211_HW_MFP_CAPABLE |
 		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
 
 	hw->wiphy->interface_modes =
-- 
cgit v0.10.2


From 2664d6665f45ef582583d14929dba1170829042e Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <thomas@cozybit.com>
Date: Wed, 8 May 2013 10:16:48 -0700
Subject: ath9k: use ap style beaconing for mesh

Chun-Yeow and Javier Lopez contributed these changes to
make mesh mode use the more similar AP beaconing mode and
queue parameters. Should improve PS performance, interface
concurrency (AP modes can coexist), and beacon interval
stability.

AR9271 (ath9k_htc) mesh interfaces also need to be in AP
operating mode.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 2ff570f..fd1eeba 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -39,7 +39,8 @@ static void ath9k_beaconq_config(struct ath_softc *sc)
 
 	ath9k_hw_get_txq_props(ah, sc->beacon.beaconq, &qi);
 
-	if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
+	if (sc->sc_ah->opmode == NL80211_IFTYPE_AP ||
+	    sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) {
 		/* Always burst out beacon and CAB traffic. */
 		qi.tqi_aifs = 1;
 		qi.tqi_cwmin = 0;
@@ -273,7 +274,8 @@ static int ath9k_beacon_choose_slot(struct ath_softc *sc)
 	u64 tsf;
 	int slot;
 
-	if (sc->sc_ah->opmode != NL80211_IFTYPE_AP) {
+	if (sc->sc_ah->opmode != NL80211_IFTYPE_AP &&
+	    sc->sc_ah->opmode != NL80211_IFTYPE_MESH_POINT) {
 		ath_dbg(common, BEACON, "slot 0, tsf: %llu\n",
 			ath9k_hw_gettsf64(sc->sc_ah));
 		return 0;
@@ -765,10 +767,10 @@ void ath9k_set_beacon(struct ath_softc *sc)
 
 	switch (sc->sc_ah->opmode) {
 	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_MESH_POINT:
 		ath9k_beacon_config_ap(sc, cur_conf);
 		break;
 	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
 		ath9k_beacon_config_adhoc(sc, cur_conf);
 		break;
 	case NL80211_IFTYPE_STATION:
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 7f25da8..a263ccc 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1245,10 +1245,10 @@ static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
 
 	switch (opmode) {
 	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
 		set |= AR_STA_ID1_ADHOC;
 		REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		set |= AR_STA_ID1_STA_AP;
 		/* fall through */
@@ -2246,12 +2246,12 @@ void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
 
 	switch (ah->opmode) {
 	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
 		REG_SET_BIT(ah, AR_TXCFG,
 			    AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
 		REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
 			  TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
 		flags |= AR_NDP_TIMER_EN;
+	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_AP:
 		REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
 		REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
-- 
cgit v0.10.2


From 7e594444448f221cff66a9309cbfd17430e463a0 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 12 May 2013 14:43:32 +0300
Subject: wil6210: 'length' in Tx/Rx descriptors is little endian

Hardware uses little endian for the Tx/Rx descriptors field 'length',
do appropriate conversions

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 727b1f5..e8308ec 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -418,9 +418,15 @@ static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
 		if (skb) {
 			unsigned char printbuf[16 * 3 + 2];
 			int i = 0;
-			int len = skb_headlen(skb);
+			int len = le16_to_cpu(d->dma.length);
 			void *p = skb->data;
 
+			if (len != skb_headlen(skb)) {
+				seq_printf(s, "!!! len: desc = %d skb = %d\n",
+					   len, skb_headlen(skb));
+				len = min_t(int, len, skb_headlen(skb));
+			}
+
 			seq_printf(s, "    len = %d\n", len);
 
 			while (i < len) {
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 7970245..6a20f0a 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -106,19 +106,21 @@ static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring,
 	size_t sz = vring->size * sizeof(vring->va[0]);
 
 	while (!wil_vring_is_empty(vring)) {
+		u16 dmalen;
 		if (tx) {
 			volatile struct vring_tx_desc *d =
 					&vring->va[vring->swtail].tx;
 			dma_addr_t pa = d->dma.addr_low |
 					((u64)d->dma.addr_high << 32);
 			struct sk_buff *skb = vring->ctx[vring->swtail];
+			dmalen = le16_to_cpu(d->dma.length);
 			if (skb) {
-				dma_unmap_single(dev, pa, d->dma.length,
+				dma_unmap_single(dev, pa, dmalen,
 						 DMA_TO_DEVICE);
 				dev_kfree_skb_any(skb);
 				vring->ctx[vring->swtail] = NULL;
 			} else {
-				dma_unmap_page(dev, pa, d->dma.length,
+				dma_unmap_page(dev, pa, dmalen,
 					       DMA_TO_DEVICE);
 			}
 			vring->swtail = wil_vring_next_tail(vring);
@@ -128,8 +130,8 @@ static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring,
 			dma_addr_t pa = d->dma.addr_low |
 					((u64)d->dma.addr_high << 32);
 			struct sk_buff *skb = vring->ctx[vring->swhead];
-			dma_unmap_single(dev, pa, d->dma.length,
-					 DMA_FROM_DEVICE);
+			dmalen = le16_to_cpu(d->dma.length);
+			dma_unmap_single(dev, pa, dmalen, DMA_FROM_DEVICE);
 			kfree_skb(skb);
 			wil_vring_advance_head(vring, 1);
 		}
@@ -175,7 +177,7 @@ static int wil_vring_alloc_skb(struct wil6210_priv *wil, struct vring *vring,
 	/* b11 don't care */
 	/* error don't care */
 	d->dma.status = 0; /* BIT(0) should be 0 for HW_OWNED */
-	d->dma.length = sz;
+	d->dma.length = cpu_to_le16(sz);
 	vring->ctx[i] = skb;
 
 	return 0;
@@ -326,6 +328,7 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 	struct sk_buff *skb;
 	dma_addr_t pa;
 	unsigned int sz = RX_BUF_LEN;
+	u16 dmalen;
 	u8 ftype;
 	u8 ds_bits;
 
@@ -343,10 +346,11 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 	pa = d->dma.addr_low | ((u64)d->dma.addr_high << 32);
 	skb = vring->ctx[vring->swhead];
 	dma_unmap_single(dev, pa, sz, DMA_FROM_DEVICE);
-	skb_trim(skb, d->dma.length);
 
 	d1 = wil_skb_rxdesc(skb);
 	*d1 = *d;
+	dmalen = le16_to_cpu(d1->dma.length);
+	skb_trim(skb, dmalen);
 
 	wil->stats.last_mcs_rx = wil_rxdesc_mcs(d1);
 
@@ -610,7 +614,7 @@ static int wil_tx_desc_map(volatile struct vring_tx_desc *d,
 	d->dma.b11 = 0/*14 | BIT(7)*/;
 	d->dma.error = 0;
 	d->dma.status = 0; /* BIT(0) should be 0 for HW_OWNED */
-	d->dma.length = len;
+	d->dma.length = cpu_to_le16((u16)len);
 	d->dma.d0 = 0;
 	d->mac.d[0] = 0;
 	d->mac.d[1] = 0;
@@ -705,14 +709,17 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 	/* unmap what we have mapped */
 	/* Note: increment @f to operate with positive index */
 	for (f++; f > 0; f--) {
+		u16 dmalen;
+
 		i = (swhead + f) % vring->size;
 		d = &(vring->va[i].tx);
 		d->dma.status = TX_DMA_STATUS_DU;
 		pa = d->dma.addr_low | ((u64)d->dma.addr_high << 32);
+		dmalen = le16_to_cpu(d->dma.length);
 		if (vring->ctx[i])
-			dma_unmap_single(dev, pa, d->dma.length, DMA_TO_DEVICE);
+			dma_unmap_single(dev, pa, dmalen, DMA_TO_DEVICE);
 		else
-			dma_unmap_page(dev, pa, d->dma.length, DMA_TO_DEVICE);
+			dma_unmap_page(dev, pa, dmalen, DMA_TO_DEVICE);
 	}
 
 	return -EINVAL;
@@ -792,15 +799,17 @@ void wil_tx_complete(struct wil6210_priv *wil, int ringid)
 		struct vring_tx_desc dd, *d = &dd;
 		dma_addr_t pa;
 		struct sk_buff *skb;
+		u16 dmalen;
 
 		dd = *d1;
 
 		if (!(d->dma.status & TX_DMA_STATUS_DU))
 			break;
 
+		dmalen = le16_to_cpu(d->dma.length);
 		wil_dbg_txrx(wil,
 			     "Tx[%3d] : %d bytes, status 0x%02x err 0x%02x\n",
-			     vring->swtail, d->dma.length, d->dma.status,
+			     vring->swtail, dmalen, d->dma.status,
 			     d->dma.error);
 		wil_hex_dump_txrx("TxC ", DUMP_PREFIX_NONE, 32, 4,
 				  (const void *)d, sizeof(*d), false);
@@ -815,11 +824,11 @@ void wil_tx_complete(struct wil6210_priv *wil, int ringid)
 				ndev->stats.tx_errors++;
 			}
 
-			dma_unmap_single(dev, pa, d->dma.length, DMA_TO_DEVICE);
+			dma_unmap_single(dev, pa, dmalen, DMA_TO_DEVICE);
 			dev_kfree_skb_any(skb);
 			vring->ctx[vring->swtail] = NULL;
 		} else {
-			dma_unmap_page(dev, pa, d->dma.length, DMA_TO_DEVICE);
+			dma_unmap_page(dev, pa, dmalen, DMA_TO_DEVICE);
 		}
 		d->dma.addr_low = 0;
 		d->dma.addr_high = 0;
diff --git a/drivers/net/wireless/ath/wil6210/txrx.h b/drivers/net/wireless/ath/wil6210/txrx.h
index adef12f..a40aa0b 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.h
+++ b/drivers/net/wireless/ath/wil6210/txrx.h
@@ -222,7 +222,7 @@ struct vring_tx_dma {
 	u8  b11;       /* 0..6: mac_length; 7:ip_version */
 	u8  error;     /* 0..2: err; 3..7: reserved; */
 	u8  status;    /* 0: used; 1..7; reserved */
-	u16 length;
+	__le16 length;
 } __packed;
 
 /*
@@ -321,7 +321,7 @@ struct vring_rx_dma {
 	u8  b11;
 	u8  error;
 	u8  status;
-	u16 length;
+	__le16 length;
 } __packed;
 
 struct vring_tx_desc {
-- 
cgit v0.10.2


From e270045b569cc7030abd29857f3a4e7906524ec0 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 12 May 2013 14:43:33 +0300
Subject: wil6210: Sanity check for reported DMA length

If Rx descriptor contains garbage, it is possible to access memory beyond
allocated buffer.

Check this condition and drop Rx if reported length is
unreasonable large

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 6a20f0a..92f1821 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -349,7 +349,13 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 
 	d1 = wil_skb_rxdesc(skb);
 	*d1 = *d;
+	wil_vring_advance_head(vring, 1);
 	dmalen = le16_to_cpu(d1->dma.length);
+	if (dmalen > sz) {
+		wil_err(wil, "Rx size too large: %d bytes!\n", dmalen);
+		kfree(skb);
+		return NULL;
+	}
 	skb_trim(skb, dmalen);
 
 	wil->stats.last_mcs_rx = wil_rxdesc_mcs(d1);
@@ -362,8 +368,6 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 	wil_hex_dump_txrx("Rx ", DUMP_PREFIX_NONE, 32, 4,
 			  (const void *)d, sizeof(*d), false);
 
-	wil_vring_advance_head(vring, 1);
-
 	/* no extra checks if in sniffer mode */
 	if (ndev->type != ARPHRD_ETHER)
 		return skb;
-- 
cgit v0.10.2


From c0d37713607de33412a3bbf8ad699d2934427696 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 12 May 2013 14:43:34 +0300
Subject: wil6210: debug dump packet content right after DMA

Move packet dump to the earliest location where it is known to have
valid data.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 92f1821..eb90be0 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -358,6 +358,10 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 	}
 	skb_trim(skb, dmalen);
 
+	wil_hex_dump_txrx("Rx ", DUMP_PREFIX_OFFSET, 16, 1,
+			  skb->data, skb_headlen(skb), false);
+
+
 	wil->stats.last_mcs_rx = wil_rxdesc_mcs(d1);
 
 	/* use radiotap header only if required */
@@ -472,8 +476,6 @@ void wil_rx_handle(struct wil6210_priv *wil)
 	}
 	wil_dbg_txrx(wil, "%s()\n", __func__);
 	while (NULL != (skb = wil_vring_reap_rx(wil, v))) {
-		wil_hex_dump_txrx("Rx ", DUMP_PREFIX_OFFSET, 16, 1,
-				  skb->data, skb_headlen(skb), false);
 
 		if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) {
 			skb->dev = ndev;
-- 
cgit v0.10.2


From 98658095623109bdace46f21bece028c904fb900 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 12 May 2013 14:43:35 +0300
Subject: wil6210: trace support

Trace the following:
- WMI cmd/event
- log events
- interrupts
- Tx/Rx

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/Kconfig b/drivers/net/wireless/ath/wil6210/Kconfig
index bac3d98..5644ac5 100644
--- a/drivers/net/wireless/ath/wil6210/Kconfig
+++ b/drivers/net/wireless/ath/wil6210/Kconfig
@@ -27,3 +27,15 @@ config WIL6210_ISR_COR
 	  self-clear when accessed for debug purposes, it makes
 	  such monitoring impossible.
 	  Say y unless you debug interrupts
+
+config ATH6KL_TRACING
+	bool "wil6210 tracing support"
+	depends on WIL6210
+	depends on EVENT_TRACING
+	default y
+	---help---
+	  Say Y here to enable tracepoints for the wil6210 driver
+	  using the kernel tracing infrastructure.  Select this
+	  option if you are interested in debugging the driver.
+
+	  If unsure, say Y to make it easier to debug problems.
diff --git a/drivers/net/wireless/ath/wil6210/Makefile b/drivers/net/wireless/ath/wil6210/Makefile
index d288eea..f891d51 100644
--- a/drivers/net/wireless/ath/wil6210/Makefile
+++ b/drivers/net/wireless/ath/wil6210/Makefile
@@ -1,15 +1,20 @@
 obj-$(CONFIG_WIL6210) += wil6210.o
 
-wil6210-objs := main.o
-wil6210-objs += netdev.o
-wil6210-objs += cfg80211.o
-wil6210-objs += pcie_bus.o
-wil6210-objs += debugfs.o
-wil6210-objs += wmi.o
-wil6210-objs += interrupt.o
-wil6210-objs += txrx.o
+wil6210-y := main.o
+wil6210-y += netdev.o
+wil6210-y += cfg80211.o
+wil6210-y += pcie_bus.o
+wil6210-y += debugfs.o
+wil6210-y += wmi.o
+wil6210-y += interrupt.o
+wil6210-y += txrx.o
+wil6210-y += debug.o
+wil6210-$(CONFIG_WIL6210_TRACING) += trace.o
 
 ifeq (, $(findstring -W,$(EXTRA_CFLAGS)))
 	subdir-ccflags-y += -Werror
 endif
+# for tracing framework to find trace.h
+CFLAGS_trace.o := -I$(src)
+
 subdir-ccflags-y += -D__CHECK_ENDIAN__
diff --git a/drivers/net/wireless/ath/wil6210/debug.c b/drivers/net/wireless/ath/wil6210/debug.c
new file mode 100644
index 0000000..9eeabf4
--- /dev/null
+++ b/drivers/net/wireless/ath/wil6210/debug.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "wil6210.h"
+#include "trace.h"
+
+int wil_err(struct wil6210_priv *wil, const char *fmt, ...)
+{
+	struct net_device *ndev = wil_to_ndev(wil);
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	ret = netdev_err(ndev, "%pV", &vaf);
+	trace_wil6210_log_err(&vaf);
+	va_end(args);
+
+	return ret;
+}
+
+int wil_info(struct wil6210_priv *wil, const char *fmt, ...)
+{
+	struct net_device *ndev = wil_to_ndev(wil);
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	ret = netdev_info(ndev, "%pV", &vaf);
+	trace_wil6210_log_info(&vaf);
+	va_end(args);
+
+	return ret;
+}
+
+int wil_dbg_trace(struct wil6210_priv *wil, const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	trace_wil6210_log_dbg(&vaf);
+	va_end(args);
+
+	return 0;
+}
diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c
index e3c1e76..5fe985c 100644
--- a/drivers/net/wireless/ath/wil6210/interrupt.c
+++ b/drivers/net/wireless/ath/wil6210/interrupt.c
@@ -17,6 +17,7 @@
 #include <linux/interrupt.h>
 
 #include "wil6210.h"
+#include "trace.h"
 
 /**
  * Theory of operation:
@@ -168,6 +169,7 @@ static irqreturn_t wil6210_irq_rx(int irq, void *cookie)
 					 HOSTADDR(RGF_DMA_EP_RX_ICR) +
 					 offsetof(struct RGF_ICR, ICR));
 
+	trace_wil6210_irq_rx(isr);
 	wil_dbg_irq(wil, "ISR RX 0x%08x\n", isr);
 
 	if (!isr) {
@@ -198,6 +200,7 @@ static irqreturn_t wil6210_irq_tx(int irq, void *cookie)
 					 HOSTADDR(RGF_DMA_EP_TX_ICR) +
 					 offsetof(struct RGF_ICR, ICR));
 
+	trace_wil6210_irq_tx(isr);
 	wil_dbg_irq(wil, "ISR TX 0x%08x\n", isr);
 
 	if (!isr) {
@@ -256,6 +259,7 @@ static irqreturn_t wil6210_irq_misc(int irq, void *cookie)
 					 HOSTADDR(RGF_DMA_EP_MISC_ICR) +
 					 offsetof(struct RGF_ICR, ICR));
 
+	trace_wil6210_irq_misc(isr);
 	wil_dbg_irq(wil, "ISR MISC 0x%08x\n", isr);
 
 	if (!isr) {
@@ -301,6 +305,7 @@ static irqreturn_t wil6210_irq_misc_thread(int irq, void *cookie)
 	struct wil6210_priv *wil = cookie;
 	u32 isr = wil->isr_misc;
 
+	trace_wil6210_irq_misc_thread(isr);
 	wil_dbg_irq(wil, "Thread ISR MISC 0x%08x\n", isr);
 
 	if (isr & ISR_MISC_FW_ERROR) {
@@ -408,6 +413,7 @@ static irqreturn_t wil6210_hardirq(int irq, void *cookie)
 	if (wil6210_debug_irq_mask(wil, pseudo_cause))
 		return IRQ_NONE;
 
+	trace_wil6210_irq_pseudo(pseudo_cause);
 	wil_dbg_irq(wil, "Pseudo IRQ 0x%08x\n", pseudo_cause);
 
 	wil6210_mask_irq_pseudo(wil);
diff --git a/drivers/net/wireless/ath/wil6210/trace.c b/drivers/net/wireless/ath/wil6210/trace.c
new file mode 100644
index 0000000..cd2534b
--- /dev/null
+++ b/drivers/net/wireless/ath/wil6210/trace.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
diff --git a/drivers/net/wireless/ath/wil6210/trace.h b/drivers/net/wireless/ath/wil6210/trace.h
new file mode 100644
index 0000000..eff1239
--- /dev/null
+++ b/drivers/net/wireless/ath/wil6210/trace.h
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM wil6210
+#if !defined(WIL6210_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define WIL6210_TRACE_H
+
+#include <linux/tracepoint.h>
+#include "wil6210.h"
+#include "txrx.h"
+
+/* create empty functions when tracing is disabled */
+#if !defined(CONFIG_WIL6210_TRACING) || defined(__CHECKER__)
+
+#undef TRACE_EVENT
+#define TRACE_EVENT(name, proto, ...) \
+static inline void trace_ ## name(proto) {}
+#undef DECLARE_EVENT_CLASS
+#define DECLARE_EVENT_CLASS(...)
+#undef DEFINE_EVENT
+#define DEFINE_EVENT(evt_class, name, proto, ...) \
+static inline void trace_ ## name(proto) {}
+#endif /* !CONFIG_WIL6210_TRACING || defined(__CHECKER__) */
+
+DECLARE_EVENT_CLASS(wil6210_wmi,
+	TP_PROTO(u16 id, void *buf, u16 buf_len),
+
+	TP_ARGS(id, buf, buf_len),
+
+	TP_STRUCT__entry(
+		__field(u16, id)
+		__field(u16, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__entry->id = id;
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"id 0x%04x len %d",
+		__entry->id, __entry->buf_len
+	)
+);
+
+DEFINE_EVENT(wil6210_wmi, wil6210_wmi_cmd,
+	TP_PROTO(u16 id, void *buf, u16 buf_len),
+	TP_ARGS(id, buf, buf_len)
+);
+
+DEFINE_EVENT(wil6210_wmi, wil6210_wmi_event,
+	TP_PROTO(u16 id, void *buf, u16 buf_len),
+	TP_ARGS(id, buf, buf_len)
+);
+
+#define WIL6210_MSG_MAX (200)
+
+DECLARE_EVENT_CLASS(wil6210_log_event,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf),
+	TP_STRUCT__entry(
+		__dynamic_array(char, msg, WIL6210_MSG_MAX)
+	),
+	TP_fast_assign(
+		WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+				       WIL6210_MSG_MAX,
+				       vaf->fmt,
+				       *vaf->va) >= WIL6210_MSG_MAX);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+DEFINE_EVENT(wil6210_log_event, wil6210_log_err,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(wil6210_log_event, wil6210_log_info,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(wil6210_log_event, wil6210_log_dbg,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+#define wil_pseudo_irq_cause(x) __print_flags(x, "|",	\
+	{BIT_DMA_PSEUDO_CAUSE_RX,	"Rx" },		\
+	{BIT_DMA_PSEUDO_CAUSE_TX,	"Tx" },		\
+	{BIT_DMA_PSEUDO_CAUSE_MISC,	"Misc" })
+
+TRACE_EVENT(wil6210_irq_pseudo,
+	TP_PROTO(u32 x),
+	TP_ARGS(x),
+	TP_STRUCT__entry(
+		__field(u32, x)
+	),
+	TP_fast_assign(
+		__entry->x = x;
+	),
+	TP_printk("cause 0x%08x : %s", __entry->x,
+		  wil_pseudo_irq_cause(__entry->x))
+);
+
+DECLARE_EVENT_CLASS(wil6210_irq,
+	TP_PROTO(u32 x),
+	TP_ARGS(x),
+	TP_STRUCT__entry(
+		__field(u32, x)
+	),
+	TP_fast_assign(
+		__entry->x = x;
+	),
+	TP_printk("cause 0x%08x", __entry->x)
+);
+
+DEFINE_EVENT(wil6210_irq, wil6210_irq_rx,
+	TP_PROTO(u32 x),
+	TP_ARGS(x)
+);
+
+DEFINE_EVENT(wil6210_irq, wil6210_irq_tx,
+	TP_PROTO(u32 x),
+	TP_ARGS(x)
+);
+
+DEFINE_EVENT(wil6210_irq, wil6210_irq_misc,
+	TP_PROTO(u32 x),
+	TP_ARGS(x)
+);
+
+DEFINE_EVENT(wil6210_irq, wil6210_irq_misc_thread,
+	TP_PROTO(u32 x),
+	TP_ARGS(x)
+);
+
+TRACE_EVENT(wil6210_rx,
+	TP_PROTO(u16 index, struct vring_rx_desc *d),
+	TP_ARGS(index, d),
+	TP_STRUCT__entry(
+		__field(u16, index)
+		__field(unsigned int, len)
+		__field(u8, mid)
+		__field(u8, cid)
+		__field(u8, tid)
+		__field(u8, type)
+		__field(u8, subtype)
+		__field(u16, seq)
+		__field(u8, mcs)
+	),
+	TP_fast_assign(
+		__entry->index = index;
+		__entry->len = d->dma.length;
+		__entry->mid = wil_rxdesc_mid(d);
+		__entry->cid = wil_rxdesc_cid(d);
+		__entry->tid = wil_rxdesc_tid(d);
+		__entry->type = wil_rxdesc_ftype(d);
+		__entry->subtype = wil_rxdesc_subtype(d);
+		__entry->seq = wil_rxdesc_seq(d);
+		__entry->mcs = wil_rxdesc_mcs(d);
+	),
+	TP_printk("index %d len %d mid %d cid %d tid %d mcs %d seq 0x%03x"
+		  " type 0x%1x subtype 0x%1x", __entry->index, __entry->len,
+		  __entry->mid, __entry->cid, __entry->tid, __entry->mcs,
+		  __entry->seq, __entry->type, __entry->subtype)
+);
+
+TRACE_EVENT(wil6210_tx,
+	TP_PROTO(u8 vring, u16 index, unsigned int len, u8 frags),
+	TP_ARGS(vring, index, len, frags),
+	TP_STRUCT__entry(
+		__field(u8, vring)
+		__field(u8, frags)
+		__field(u16, index)
+		__field(unsigned int, len)
+	),
+	TP_fast_assign(
+		__entry->vring = vring;
+		__entry->frags = frags;
+		__entry->index = index;
+		__entry->len = len;
+	),
+	TP_printk("vring %d index %d len %d frags %d",
+		  __entry->vring, __entry->index, __entry->len, __entry->frags)
+);
+
+TRACE_EVENT(wil6210_tx_done,
+	TP_PROTO(u8 vring, u16 index, unsigned int len, u8 err),
+	TP_ARGS(vring, index, len, err),
+	TP_STRUCT__entry(
+		__field(u8, vring)
+		__field(u8, err)
+		__field(u16, index)
+		__field(unsigned int, len)
+	),
+	TP_fast_assign(
+		__entry->vring = vring;
+		__entry->index = index;
+		__entry->len = len;
+		__entry->err = err;
+	),
+	TP_printk("vring %d index %d len %d err 0x%02x",
+		  __entry->vring, __entry->index, __entry->len,
+		  __entry->err)
+);
+
+#endif /* WIL6210_TRACE_H || TRACE_HEADER_MULTI_READ*/
+
+#if defined(CONFIG_WIL6210_TRACING) && !defined(__CHECKER__)
+/* we don't want to use include/trace/events */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
+#endif /* defined(CONFIG_WIL6210_TRACING) && !defined(__CHECKER__) */
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index eb90be0..dc183d5 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -22,6 +22,7 @@
 #include "wil6210.h"
 #include "wmi.h"
 #include "txrx.h"
+#include "trace.h"
 
 static bool rtap_include_phy_info;
 module_param(rtap_include_phy_info, bool, S_IRUGO);
@@ -368,9 +369,11 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 	if (ndev->type == ARPHRD_IEEE80211_RADIOTAP)
 		wil_rx_add_radiotap_header(wil, skb);
 
-	wil_dbg_txrx(wil, "Rx[%3d] : %d bytes\n", vring->swhead, d->dma.length);
+	trace_wil6210_rx(vring->swhead, d1);
+	wil_dbg_txrx(wil, "Rx[%3d] : %d bytes\n", vring->swhead,
+		     d1->dma.length);
 	wil_hex_dump_txrx("Rx ", DUMP_PREFIX_NONE, 32, 4,
-			  (const void *)d, sizeof(*d), false);
+			  (const void *)d1, sizeof(*d1), false);
 
 	/* no extra checks if in sniffer mode */
 	if (ndev->type != ARPHRD_ETHER)
@@ -703,6 +706,7 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 	/* advance swhead */
 	wil_vring_advance_head(vring, nr_frags + 1);
 	wil_dbg_txrx(wil, "Tx swhead %d -> %d\n", swhead, vring->swhead);
+	trace_wil6210_tx(vring_index, swhead, skb->len, nr_frags);
 	iowrite32(vring->swhead, wil->csr + HOSTADDR(vring->hwtail));
 	/* hold reference to skb
 	 * to prevent skb release before accounting
@@ -813,6 +817,8 @@ void wil_tx_complete(struct wil6210_priv *wil, int ringid)
 			break;
 
 		dmalen = le16_to_cpu(d->dma.length);
+		trace_wil6210_tx_done(ringid, vring->swtail, dmalen,
+				      d->dma.error);
 		wil_dbg_txrx(wil,
 			     "Tx[%3d] : %d bytes, status 0x%02x err 0x%02x\n",
 			     vring->swtail, dmalen, d->dma.status,
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 8f76ecd..484446e 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -267,9 +267,13 @@ struct wil6210_priv {
 #define wil_to_ndev(i) (wil_to_wdev(i)->netdev)
 #define ndev_to_wil(n) (wdev_to_wil(n->ieee80211_ptr))
 
-#define wil_dbg(wil, fmt, arg...) netdev_dbg(wil_to_ndev(wil), fmt, ##arg)
-#define wil_info(wil, fmt, arg...) netdev_info(wil_to_ndev(wil), fmt, ##arg)
-#define wil_err(wil, fmt, arg...) netdev_err(wil_to_ndev(wil), fmt, ##arg)
+int wil_dbg_trace(struct wil6210_priv *wil, const char *fmt, ...);
+int wil_err(struct wil6210_priv *wil, const char *fmt, ...);
+int wil_info(struct wil6210_priv *wil, const char *fmt, ...);
+#define wil_dbg(wil, fmt, arg...) do { \
+	netdev_dbg(wil_to_ndev(wil), fmt, ##arg); \
+	wil_dbg_trace(wil, fmt, ##arg); \
+} while (0)
 
 #define wil_dbg_irq(wil, fmt, arg...) wil_dbg(wil, "DBG[ IRQ]" fmt, ##arg)
 #define wil_dbg_txrx(wil, fmt, arg...) wil_dbg(wil, "DBG[TXRX]" fmt, ##arg)
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 45b04e3..5e01f4e 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -20,6 +20,7 @@
 #include "wil6210.h"
 #include "txrx.h"
 #include "wmi.h"
+#include "trace.h"
 
 /**
  * WMI event receiving - theory of operations
@@ -246,6 +247,8 @@ static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
 	iowrite32(r->head = next_head, wil->csr + HOST_MBOX +
 		  offsetof(struct wil6210_mbox_ctl, tx.head));
 
+	trace_wil6210_wmi_cmd(cmdid, buf, len);
+
 	/* interrupt to FW */
 	iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT);
 
@@ -635,8 +638,9 @@ void wmi_recv_cmd(struct wil6210_priv *wil)
 			    hdr.flags);
 		if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
 		    (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
-			wil_dbg_wmi(wil, "WMI event 0x%04x\n",
-				    evt->event.wmi.id);
+			u16 id = le16_to_cpu(evt->event.wmi.id);
+			wil_dbg_wmi(wil, "WMI event 0x%04x\n", id);
+			trace_wil6210_wmi_event(id, &evt->event.wmi, len);
 		}
 		wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
 				 &evt->event.hdr, sizeof(hdr) + len, true);
-- 
cgit v0.10.2


From e0287c4ab87905dd4a2e45cf791f8e0a87fe602e Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 12 May 2013 14:43:36 +0300
Subject: wil6210: use NAPI

Introduce NAPI for Rx and Tx completion.

This fixes packet reordering that happens when Rx handled right in
the IRQ: netif_rx puts packet in 'percpu' queue, then network stack
fetches packets from 'percpu' queues for processing, with different
pattern of queue switching. As result, network stack see packets
in different order. This causes hard to understand TCP throughput
degradation in about 30min

Complete polling if only one packet was processed - this eliminates
empty polls that would be otherwise done at the end of each burst

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c
index 5fe985c..8205d3e 100644
--- a/drivers/net/wireless/ath/wil6210/interrupt.c
+++ b/drivers/net/wireless/ath/wil6210/interrupt.c
@@ -104,14 +104,14 @@ static void wil6210_mask_irq_pseudo(struct wil6210_priv *wil)
 	clear_bit(wil_status_irqen, &wil->status);
 }
 
-static void wil6210_unmask_irq_tx(struct wil6210_priv *wil)
+void wil6210_unmask_irq_tx(struct wil6210_priv *wil)
 {
 	iowrite32(WIL6210_IMC_TX, wil->csr +
 		  HOSTADDR(RGF_DMA_EP_TX_ICR) +
 		  offsetof(struct RGF_ICR, IMC));
 }
 
-static void wil6210_unmask_irq_rx(struct wil6210_priv *wil)
+void wil6210_unmask_irq_rx(struct wil6210_priv *wil)
 {
 	iowrite32(WIL6210_IMC_RX, wil->csr +
 		  HOSTADDR(RGF_DMA_EP_RX_ICR) +
@@ -182,13 +182,14 @@ static irqreturn_t wil6210_irq_rx(int irq, void *cookie)
 	if (isr & BIT_DMA_EP_RX_ICR_RX_DONE) {
 		wil_dbg_irq(wil, "RX done\n");
 		isr &= ~BIT_DMA_EP_RX_ICR_RX_DONE;
-		wil_rx_handle(wil);
+		wil_dbg_txrx(wil, "NAPI schedule\n");
+		napi_schedule(&wil->napi_rx);
 	}
 
 	if (isr)
 		wil_err(wil, "un-handled RX ISR bits 0x%08x\n", isr);
 
-	wil6210_unmask_irq_rx(wil);
+	/* Rx IRQ will be enabled when NAPI processing finished */
 
 	return IRQ_HANDLED;
 }
@@ -211,23 +212,17 @@ static irqreturn_t wil6210_irq_tx(int irq, void *cookie)
 	wil6210_mask_irq_tx(wil);
 
 	if (isr & BIT_DMA_EP_TX_ICR_TX_DONE) {
-		uint i;
 		wil_dbg_irq(wil, "TX done\n");
+		napi_schedule(&wil->napi_tx);
 		isr &= ~BIT_DMA_EP_TX_ICR_TX_DONE;
-		for (i = 0; i < 24; i++) {
-			u32 mask = BIT_DMA_EP_TX_ICR_TX_DONE_N(i);
-			if (isr & mask) {
-				isr &= ~mask;
-				wil_dbg_irq(wil, "TX done(%i)\n", i);
-				wil_tx_complete(wil, i);
-			}
-		}
+		/* clear also all VRING interrupts */
+		isr &= ~(BIT(25) - 1UL);
 	}
 
 	if (isr)
 		wil_err(wil, "un-handled TX ISR bits 0x%08x\n", isr);
 
-	wil6210_unmask_irq_tx(wil);
+	/* Tx IRQ will be enabled when NAPI processing finished */
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index a0478e2..ea49c8a 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -365,6 +365,9 @@ static int __wil_up(struct wil6210_priv *wil)
 	/* Rx VRING. After MAC and beacon */
 	wil_rx_init(wil);
 
+	napi_enable(&wil->napi_rx);
+	napi_enable(&wil->napi_tx);
+
 	return 0;
 }
 
@@ -381,6 +384,9 @@ int wil_up(struct wil6210_priv *wil)
 
 static int __wil_down(struct wil6210_priv *wil)
 {
+	napi_disable(&wil->napi_rx);
+	napi_disable(&wil->napi_tx);
+
 	if (wil->scan_request) {
 		cfg80211_scan_done(wil->scan_request, true);
 		wil->scan_request = NULL;
diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c
index 098a8ec..29dd1e5 100644
--- a/drivers/net/wireless/ath/wil6210/netdev.c
+++ b/drivers/net/wireless/ath/wil6210/netdev.c
@@ -40,6 +40,55 @@ static const struct net_device_ops wil_netdev_ops = {
 	.ndo_validate_addr	= eth_validate_addr,
 };
 
+static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget)
+{
+	struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
+						napi_rx);
+	int quota = budget;
+	int done;
+
+	wil_rx_handle(wil, &quota);
+	done = budget - quota;
+
+	if (done <= 1) { /* burst ends - only one packet processed */
+		napi_complete(napi);
+		wil6210_unmask_irq_rx(wil);
+		wil_dbg_txrx(wil, "NAPI RX complete\n");
+	}
+
+	wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done);
+
+	return done;
+}
+
+static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget)
+{
+	struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
+						napi_tx);
+	int tx_done = 0;
+	uint i;
+
+	/* always process ALL Tx complete, regardless budget - it is fast */
+	for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
+		struct vring *vring = &wil->vring_tx[i];
+
+		if (!vring->va)
+			continue;
+
+		tx_done += wil_tx_complete(wil, i);
+	}
+
+	if (tx_done <= 1) { /* burst ends - only one packet processed */
+		napi_complete(napi);
+		wil6210_unmask_irq_tx(wil);
+		wil_dbg_txrx(wil, "NAPI TX complete\n");
+	}
+
+	wil_dbg_txrx(wil, "NAPI TX poll(%d) done %d\n", budget, tx_done);
+
+	return min(tx_done, budget);
+}
+
 void *wil_if_alloc(struct device *dev, void __iomem *csr)
 {
 	struct net_device *ndev;
@@ -81,6 +130,11 @@ void *wil_if_alloc(struct device *dev, void __iomem *csr)
 	SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
 	wdev->netdev = ndev;
 
+	netif_napi_add(ndev, &wil->napi_rx, wil6210_netdev_poll_rx,
+		       WIL6210_NAPI_BUDGET);
+	netif_napi_add(ndev, &wil->napi_tx, wil6210_netdev_poll_tx,
+		       WIL6210_NAPI_BUDGET);
+
 	wil_link_off(wil);
 
 	return wil;
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index dc183d5..bab5011 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -440,6 +440,7 @@ static int wil_rx_refill(struct wil6210_priv *wil, int count)
 
 /*
  * Pass Rx packet to the netif. Update statistics.
+ * Called in softirq context (NAPI poll).
  */
 static void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev)
 {
@@ -448,10 +449,7 @@ static void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev)
 
 	skb_orphan(skb);
 
-	if (in_interrupt())
-		rc = netif_rx(skb);
-	else
-		rc = netif_rx_ni(skb);
+	rc = netif_receive_skb(skb);
 
 	if (likely(rc == NET_RX_SUCCESS)) {
 		ndev->stats.rx_packets++;
@@ -465,9 +463,9 @@ static void wil_netif_rx_any(struct sk_buff *skb, struct net_device *ndev)
 /**
  * Proceed all completed skb's from Rx VRING
  *
- * Safe to call from IRQ
+ * Safe to call from NAPI poll, i.e. softirq with interrupts enabled
  */
-void wil_rx_handle(struct wil6210_priv *wil)
+void wil_rx_handle(struct wil6210_priv *wil, int *quota)
 {
 	struct net_device *ndev = wil_to_ndev(wil);
 	struct vring *v = &wil->vring_rx;
@@ -478,7 +476,8 @@ void wil_rx_handle(struct wil6210_priv *wil)
 		return;
 	}
 	wil_dbg_txrx(wil, "%s()\n", __func__);
-	while (NULL != (skb = wil_vring_reap_rx(wil, v))) {
+	while ((*quota > 0) && (NULL != (skb = wil_vring_reap_rx(wil, v)))) {
+		(*quota)--;
 
 		if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) {
 			skb->dev = ndev;
@@ -788,17 +787,20 @@ netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 /**
  * Clean up transmitted skb's from the Tx VRING
  *
+ * Return number of descriptors cleared
+ *
  * Safe to call from IRQ
  */
-void wil_tx_complete(struct wil6210_priv *wil, int ringid)
+int wil_tx_complete(struct wil6210_priv *wil, int ringid)
 {
 	struct net_device *ndev = wil_to_ndev(wil);
 	struct device *dev = wil_to_dev(wil);
 	struct vring *vring = &wil->vring_tx[ringid];
+	int done = 0;
 
 	if (!vring->va) {
 		wil_err(wil, "Tx irq[%d]: vring not initialized\n", ringid);
-		return;
+		return 0;
 	}
 
 	wil_dbg_txrx(wil, "%s(%d)\n", __func__, ringid);
@@ -847,7 +849,10 @@ void wil_tx_complete(struct wil6210_priv *wil, int ringid)
 		d->dma.length = 0;
 		d->dma.status = TX_DMA_STATUS_DU;
 		vring->swtail = wil_vring_next_tail(vring);
+		done++;
 	}
 	if (wil_vring_avail_tx(vring) > vring->size/4)
 		netif_tx_wake_all_queues(wil_to_ndev(wil));
+
+	return done;
 }
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 484446e..2e3c26e 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -34,9 +34,11 @@ static inline u32 WIL_GET_BITS(u32 x, int b0, int b1)
 
 #define WIL6210_MEM_SIZE (2*1024*1024UL)
 
-#define WIL6210_RX_RING_SIZE (128)
-#define WIL6210_TX_RING_SIZE (128)
-#define WIL6210_MAX_TX_RINGS (24)
+#define WIL6210_RX_RING_SIZE	(128)
+#define WIL6210_TX_RING_SIZE	(128)
+#define WIL6210_MAX_TX_RINGS	(24) /* HW limit */
+#define WIL6210_MAX_CID		(8) /* HW limit */
+#define WIL6210_NAPI_BUDGET	(16) /* arbitrary */
 
 /* Hardware definitions begin */
 
@@ -239,6 +241,8 @@ struct wil6210_priv {
 	 * - consumed in thread by wmi_event_worker
 	 */
 	spinlock_t wmi_ev_lock;
+	struct napi_struct napi_rx;
+	struct napi_struct napi_tx;
 	/* DMA related */
 	struct vring vring_rx;
 	struct vring vring_tx[WIL6210_MAX_TX_RINGS];
@@ -360,10 +364,12 @@ int wil_vring_init_tx(struct wil6210_priv *wil, int id, int size,
 void wil_vring_fini_tx(struct wil6210_priv *wil, int id);
 
 netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev);
-void wil_tx_complete(struct wil6210_priv *wil, int ringid);
+int wil_tx_complete(struct wil6210_priv *wil, int ringid);
+void wil6210_unmask_irq_tx(struct wil6210_priv *wil);
 
 /* RX API */
-void wil_rx_handle(struct wil6210_priv *wil);
+void wil_rx_handle(struct wil6210_priv *wil, int *quota);
+void wil6210_unmask_irq_rx(struct wil6210_priv *wil);
 
 int wil_iftype_nl2wmi(enum nl80211_iftype type);
 
-- 
cgit v0.10.2


From 68ada71e33e7b79f2ce7c6fff5564750a225234a Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 12 May 2013 14:43:37 +0300
Subject: wil6210: fix remaining use of non-cached copy of tx/rx descriptors

- Introduce common code for Tx/Rx descriptor physical address set/parse
- Fix endianness for address fields
- consistent descriptor naming: '_d' for non-cached memory, 'd' for cached copy
- wil_tx_desc_map now modify cached copy, no need for 'volatile'

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index bab5011..5613148 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -90,8 +90,8 @@ static int wil_vring_alloc(struct wil6210_priv *wil, struct vring *vring)
 	 * we can use any
 	 */
 	for (i = 0; i < vring->size; i++) {
-		volatile struct vring_tx_desc *d = &(vring->va[i].tx);
-		d->dma.status = TX_DMA_STATUS_DU;
+		volatile struct vring_tx_desc *_d = &(vring->va[i].tx);
+		_d->dma.status = TX_DMA_STATUS_DU;
 	}
 
 	wil_dbg_misc(wil, "vring[%d] 0x%p:0x%016llx 0x%p\n", vring->size,
@@ -107,14 +107,19 @@ static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring,
 	size_t sz = vring->size * sizeof(vring->va[0]);
 
 	while (!wil_vring_is_empty(vring)) {
+		dma_addr_t pa;
+		struct sk_buff *skb;
 		u16 dmalen;
+
 		if (tx) {
-			volatile struct vring_tx_desc *d =
+			struct vring_tx_desc dd, *d = &dd;
+			volatile struct vring_tx_desc *_d =
 					&vring->va[vring->swtail].tx;
-			dma_addr_t pa = d->dma.addr_low |
-					((u64)d->dma.addr_high << 32);
-			struct sk_buff *skb = vring->ctx[vring->swtail];
+
+			*d = *_d;
+			pa = wil_desc_addr(&d->dma.addr);
 			dmalen = le16_to_cpu(d->dma.length);
+			skb = vring->ctx[vring->swtail];
 			if (skb) {
 				dma_unmap_single(dev, pa, dmalen,
 						 DMA_TO_DEVICE);
@@ -126,12 +131,14 @@ static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring,
 			}
 			vring->swtail = wil_vring_next_tail(vring);
 		} else { /* rx */
-			volatile struct vring_rx_desc *d =
+			struct vring_rx_desc dd, *d = &dd;
+			volatile struct vring_rx_desc *_d =
 					&vring->va[vring->swtail].rx;
-			dma_addr_t pa = d->dma.addr_low |
-					((u64)d->dma.addr_high << 32);
-			struct sk_buff *skb = vring->ctx[vring->swhead];
+
+			*d = *_d;
+			pa = wil_desc_addr(&d->dma.addr);
 			dmalen = le16_to_cpu(d->dma.length);
+			skb = vring->ctx[vring->swhead];
 			dma_unmap_single(dev, pa, dmalen, DMA_FROM_DEVICE);
 			kfree_skb(skb);
 			wil_vring_advance_head(vring, 1);
@@ -154,7 +161,8 @@ static int wil_vring_alloc_skb(struct wil6210_priv *wil, struct vring *vring,
 {
 	struct device *dev = wil_to_dev(wil);
 	unsigned int sz = RX_BUF_LEN;
-	volatile struct vring_rx_desc *d = &(vring->va[i].rx);
+	struct vring_rx_desc dd, *d = &dd;
+	volatile struct vring_rx_desc *_d = &(vring->va[i].rx);
 	dma_addr_t pa;
 
 	/* TODO align */
@@ -172,13 +180,13 @@ static int wil_vring_alloc_skb(struct wil6210_priv *wil, struct vring *vring,
 	}
 
 	d->dma.d0 = BIT(9) | RX_DMA_D0_CMD_DMA_IT;
-	d->dma.addr_low = lower_32_bits(pa);
-	d->dma.addr_high = (u16)upper_32_bits(pa);
+	wil_desc_addr_set(&d->dma.addr, pa);
 	/* ip_length don't care */
 	/* b11 don't care */
 	/* error don't care */
 	d->dma.status = 0; /* BIT(0) should be 0 for HW_OWNED */
 	d->dma.length = cpu_to_le16(sz);
+	*_d = *d;
 	vring->ctx[i] = skb;
 
 	return 0;
@@ -324,8 +332,8 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 {
 	struct device *dev = wil_to_dev(wil);
 	struct net_device *ndev = wil_to_ndev(wil);
-	volatile struct vring_rx_desc *d;
-	struct vring_rx_desc *d1;
+	volatile struct vring_rx_desc *_d;
+	struct vring_rx_desc *d;
 	struct sk_buff *skb;
 	dma_addr_t pa;
 	unsigned int sz = RX_BUF_LEN;
@@ -338,20 +346,27 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 	if (wil_vring_is_empty(vring))
 		return NULL;
 
-	d = &(vring->va[vring->swhead].rx);
-	if (!(d->dma.status & RX_DMA_STATUS_DU)) {
+	_d = &(vring->va[vring->swhead].rx);
+	if (!(_d->dma.status & RX_DMA_STATUS_DU)) {
 		/* it is not error, we just reached end of Rx done area */
 		return NULL;
 	}
 
-	pa = d->dma.addr_low | ((u64)d->dma.addr_high << 32);
 	skb = vring->ctx[vring->swhead];
+	d = wil_skb_rxdesc(skb);
+	*d = *_d;
+	pa = wil_desc_addr(&d->dma.addr);
+	vring->ctx[vring->swhead] = NULL;
+	wil_vring_advance_head(vring, 1);
+
 	dma_unmap_single(dev, pa, sz, DMA_FROM_DEVICE);
+	dmalen = le16_to_cpu(d->dma.length);
+
+	trace_wil6210_rx(vring->swhead, d);
+	wil_dbg_txrx(wil, "Rx[%3d] : %d bytes\n", vring->swhead, dmalen);
+	wil_hex_dump_txrx("Rx ", DUMP_PREFIX_NONE, 32, 4,
+			  (const void *)d, sizeof(*d), false);
 
-	d1 = wil_skb_rxdesc(skb);
-	*d1 = *d;
-	wil_vring_advance_head(vring, 1);
-	dmalen = le16_to_cpu(d1->dma.length);
 	if (dmalen > sz) {
 		wil_err(wil, "Rx size too large: %d bytes!\n", dmalen);
 		kfree(skb);
@@ -363,18 +378,12 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 			  skb->data, skb_headlen(skb), false);
 
 
-	wil->stats.last_mcs_rx = wil_rxdesc_mcs(d1);
+	wil->stats.last_mcs_rx = wil_rxdesc_mcs(d);
 
 	/* use radiotap header only if required */
 	if (ndev->type == ARPHRD_IEEE80211_RADIOTAP)
 		wil_rx_add_radiotap_header(wil, skb);
 
-	trace_wil6210_rx(vring->swhead, d1);
-	wil_dbg_txrx(wil, "Rx[%3d] : %d bytes\n", vring->swhead,
-		     d1->dma.length);
-	wil_hex_dump_txrx("Rx ", DUMP_PREFIX_NONE, 32, 4,
-			  (const void *)d1, sizeof(*d1), false);
-
 	/* no extra checks if in sniffer mode */
 	if (ndev->type != ARPHRD_ETHER)
 		return skb;
@@ -383,7 +392,7 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 	 * Driver should recognize it by frame type, that is found
 	 * in Rx descriptor. If type is not data, it is 802.11 frame as is
 	 */
-	ftype = wil_rxdesc_ftype(d1) << 2;
+	ftype = wil_rxdesc_ftype(d) << 2;
 	if (ftype != IEEE80211_FTYPE_DATA) {
 		wil_dbg_txrx(wil, "Non-data frame ftype 0x%08x\n", ftype);
 		/* TODO: process it */
@@ -398,7 +407,7 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 		return NULL;
 	}
 
-	ds_bits = wil_rxdesc_ds_bits(d1);
+	ds_bits = wil_rxdesc_ds_bits(d);
 	if (ds_bits == 1) {
 		/*
 		 * HW bug - in ToDS mode, i.e. Rx on AP side,
@@ -612,11 +621,9 @@ static struct vring *wil_find_tx_vring(struct wil6210_priv *wil,
 	return NULL;
 }
 
-static int wil_tx_desc_map(volatile struct vring_tx_desc *d,
-			   dma_addr_t pa, u32 len)
+static int wil_tx_desc_map(struct vring_tx_desc *d, dma_addr_t pa, u32 len)
 {
-	d->dma.addr_low = lower_32_bits(pa);
-	d->dma.addr_high = (u16)upper_32_bits(pa);
+	wil_desc_addr_set(&d->dma.addr, pa);
 	d->dma.ip_length = 0;
 	/* 0..6: mac_length; 7:ip_version 0-IP6 1-IP4*/
 	d->dma.b11 = 0/*14 | BIT(7)*/;
@@ -642,7 +649,8 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 			struct sk_buff *skb)
 {
 	struct device *dev = wil_to_dev(wil);
-	volatile struct vring_tx_desc *d;
+	struct vring_tx_desc dd, *d = &dd;
+	volatile struct vring_tx_desc *_d;
 	u32 swhead = vring->swhead;
 	int avail = wil_vring_avail_tx(vring);
 	int nr_frags = skb_shinfo(skb)->nr_frags;
@@ -660,7 +668,7 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 			1 + nr_frags);
 		return -ENOMEM;
 	}
-	d = &(vring->va[i].tx);
+	_d = &(vring->va[i].tx);
 
 	/* FIXME FW can accept only unicast frames for the peer */
 	memcpy(skb->data, wil->dst_addr[vring_index], ETH_ALEN);
@@ -679,25 +687,30 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 	wil_tx_desc_map(d, pa, skb_headlen(skb));
 	d->mac.d[2] |= ((nr_frags + 1) <<
 		       MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_POS);
+	if (nr_frags)
+		*_d = *d;
+
 	/* middle segments */
 	for (f = 0; f < nr_frags; f++) {
 		const struct skb_frag_struct *frag =
 				&skb_shinfo(skb)->frags[f];
 		int len = skb_frag_size(frag);
 		i = (swhead + f + 1) % vring->size;
-		d = &(vring->va[i].tx);
+		_d = &(vring->va[i].tx);
 		pa = skb_frag_dma_map(dev, frag, 0, skb_frag_size(frag),
 				DMA_TO_DEVICE);
 		if (unlikely(dma_mapping_error(dev, pa)))
 			goto dma_error;
 		wil_tx_desc_map(d, pa, len);
 		vring->ctx[i] = NULL;
+		*_d = *d;
 	}
 	/* for the last seg only */
 	d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_EOP_POS);
 	d->dma.d0 |= BIT(9); /* BUG: undocumented bit */
 	d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS);
 	d->dma.d0 |= (vring_index << DMA_CFG_DESC_TX_0_QID_POS);
+	*_d = *d;
 
 	wil_hex_dump_txrx("Tx ", DUMP_PREFIX_NONE, 32, 4,
 			  (const void *)d, sizeof(*d), false);
@@ -721,9 +734,10 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 		u16 dmalen;
 
 		i = (swhead + f) % vring->size;
-		d = &(vring->va[i].tx);
-		d->dma.status = TX_DMA_STATUS_DU;
-		pa = d->dma.addr_low | ((u64)d->dma.addr_high << 32);
+		_d = &(vring->va[i].tx);
+		*d = *_d;
+		_d->dma.status = TX_DMA_STATUS_DU;
+		pa = wil_desc_addr(&d->dma.addr);
 		dmalen = le16_to_cpu(d->dma.length);
 		if (vring->ctx[i])
 			dma_unmap_single(dev, pa, dmalen, DMA_TO_DEVICE);
@@ -806,14 +820,14 @@ int wil_tx_complete(struct wil6210_priv *wil, int ringid)
 	wil_dbg_txrx(wil, "%s(%d)\n", __func__, ringid);
 
 	while (!wil_vring_is_empty(vring)) {
-		volatile struct vring_tx_desc *d1 =
+		volatile struct vring_tx_desc *_d =
 					      &vring->va[vring->swtail].tx;
 		struct vring_tx_desc dd, *d = &dd;
 		dma_addr_t pa;
 		struct sk_buff *skb;
 		u16 dmalen;
 
-		dd = *d1;
+		*d = *_d;
 
 		if (!(d->dma.status & TX_DMA_STATUS_DU))
 			break;
@@ -828,7 +842,7 @@ int wil_tx_complete(struct wil6210_priv *wil, int ringid)
 		wil_hex_dump_txrx("TxC ", DUMP_PREFIX_NONE, 32, 4,
 				  (const void *)d, sizeof(*d), false);
 
-		pa = d->dma.addr_low | ((u64)d->dma.addr_high << 32);
+		pa = wil_desc_addr(&d->dma.addr);
 		skb = vring->ctx[vring->swtail];
 		if (skb) {
 			if (d->dma.error == 0) {
@@ -844,8 +858,8 @@ int wil_tx_complete(struct wil6210_priv *wil, int ringid)
 		} else {
 			dma_unmap_page(dev, pa, dmalen, DMA_TO_DEVICE);
 		}
-		d->dma.addr_low = 0;
-		d->dma.addr_high = 0;
+		d->dma.addr.addr_low = 0;
+		d->dma.addr.addr_high = 0;
 		d->dma.length = 0;
 		d->dma.status = TX_DMA_STATUS_DU;
 		vring->swtail = wil_vring_next_tail(vring);
diff --git a/drivers/net/wireless/ath/wil6210/txrx.h b/drivers/net/wireless/ath/wil6210/txrx.h
index a40aa0b..23c0781 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.h
+++ b/drivers/net/wireless/ath/wil6210/txrx.h
@@ -27,6 +27,28 @@
 #define WIL6210_RTAP_SIZE (128)
 
 /* Tx/Rx path */
+
+/*
+ * Common representation of physical address in Vring
+ */
+struct vring_dma_addr {
+	__le32 addr_low;
+	__le16 addr_high;
+} __packed;
+
+static inline dma_addr_t wil_desc_addr(struct vring_dma_addr *addr)
+{
+	return le32_to_cpu(addr->addr_low) |
+			   ((u64)le16_to_cpu(addr->addr_high) << 32);
+}
+
+static inline void wil_desc_addr_set(struct vring_dma_addr *addr,
+				     dma_addr_t pa)
+{
+	addr->addr_low = cpu_to_le32(lower_32_bits(pa));
+	addr->addr_high = cpu_to_le16((u16)upper_32_bits(pa));
+}
+
 /*
  * Tx descriptor - MAC part
  * [dword 0]
@@ -216,8 +238,7 @@ struct vring_tx_mac {
 
 struct vring_tx_dma {
 	u32 d0;
-	u32 addr_low;
-	u16 addr_high;
+	struct vring_dma_addr addr;
 	u8  ip_length;
 	u8  b11;       /* 0..6: mac_length; 7:ip_version */
 	u8  error;     /* 0..2: err; 3..7: reserved; */
@@ -315,8 +336,7 @@ struct vring_rx_mac {
 
 struct vring_rx_dma {
 	u32 d0;
-	u32 addr_low;
-	u16 addr_high;
+	struct vring_dma_addr addr;
 	u8  ip_length;
 	u8  b11;
 	u8  error;
-- 
cgit v0.10.2


From 224c9c2366efe7f32496c1b7ef82f9b6424817dd Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 12 May 2013 14:43:38 +0300
Subject: wil6210: do not stop Tx queue on packet drop

Packet drop may be caused by various flows, like disconnect
while Tx packets was queued; this should not lead to stopping
of the Tx queue, or all Tx get stalled.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 5613148..082f76b 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -791,7 +791,6 @@ netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		break; /* goto drop; */
 	}
  drop:
-	netif_tx_stop_all_queues(ndev);
 	ndev->stats.tx_dropped++;
 	dev_kfree_skb_any(skb);
 
-- 
cgit v0.10.2


From 5179ed7c1bc1d4599f9643f9711c090648602f4b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 13 May 2013 22:07:51 +0200
Subject: bcma: don't hardcode SPROM length
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Pass it as an argument to all functions. This is requires as newer SPROM
revisions have different lengths.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index 8934298..5386cdd 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -72,12 +72,12 @@ fail:
  * R/W ops.
  **************************************************/
 
-static void bcma_sprom_read(struct bcma_bus *bus, u16 offset, u16 *sprom)
+static void bcma_sprom_read(struct bcma_bus *bus, u16 offset, u16 *sprom,
+			    size_t words)
 {
 	int i;
-	for (i = 0; i < SSB_SPROMSIZE_WORDS_R4; i++)
-		sprom[i] = bcma_read16(bus->drv_cc.core,
-				       offset + (i * 2));
+	for (i = 0; i < words; i++)
+		sprom[i] = bcma_read16(bus->drv_cc.core, offset + (i * 2));
 }
 
 /**************************************************
@@ -124,29 +124,29 @@ static inline u8 bcma_crc8(u8 crc, u8 data)
 	return t[crc ^ data];
 }
 
-static u8 bcma_sprom_crc(const u16 *sprom)
+static u8 bcma_sprom_crc(const u16 *sprom, size_t words)
 {
 	int word;
 	u8 crc = 0xFF;
 
-	for (word = 0; word < SSB_SPROMSIZE_WORDS_R4 - 1; word++) {
+	for (word = 0; word < words - 1; word++) {
 		crc = bcma_crc8(crc, sprom[word] & 0x00FF);
 		crc = bcma_crc8(crc, (sprom[word] & 0xFF00) >> 8);
 	}
-	crc = bcma_crc8(crc, sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & 0x00FF);
+	crc = bcma_crc8(crc, sprom[words - 1] & 0x00FF);
 	crc ^= 0xFF;
 
 	return crc;
 }
 
-static int bcma_sprom_check_crc(const u16 *sprom)
+static int bcma_sprom_check_crc(const u16 *sprom, size_t words)
 {
 	u8 crc;
 	u8 expected_crc;
 	u16 tmp;
 
-	crc = bcma_sprom_crc(sprom);
-	tmp = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_CRC;
+	crc = bcma_sprom_crc(sprom, words);
+	tmp = sprom[words - 1] & SSB_SPROM_REVISION_CRC;
 	expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT;
 	if (crc != expected_crc)
 		return -EPROTO;
@@ -154,16 +154,16 @@ static int bcma_sprom_check_crc(const u16 *sprom)
 	return 0;
 }
 
-static int bcma_sprom_valid(const u16 *sprom)
+static int bcma_sprom_valid(const u16 *sprom, size_t words)
 {
 	u16 revision;
 	int err;
 
-	err = bcma_sprom_check_crc(sprom);
+	err = bcma_sprom_check_crc(sprom, words);
 	if (err)
 		return err;
 
-	revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_REV;
+	revision = sprom[words - 1] & SSB_SPROM_REVISION_REV;
 	if (revision != 8 && revision != 9) {
 		pr_err("Unsupported SPROM revision: %d\n", revision);
 		return -ENOENT;
@@ -589,13 +589,13 @@ int bcma_sprom_get(struct bcma_bus *bus)
 		bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false);
 
 	bcma_debug(bus, "SPROM offset 0x%x\n", offset);
-	bcma_sprom_read(bus, offset, sprom);
+	bcma_sprom_read(bus, offset, sprom, SSB_SPROMSIZE_WORDS_R4);
 
 	if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 ||
 	    bus->chipinfo.id == BCMA_CHIP_ID_BCM43431)
 		bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true);
 
-	err = bcma_sprom_valid(sprom);
+	err = bcma_sprom_valid(sprom, SSB_SPROMSIZE_WORDS_R4);
 	if (err) {
 		bcma_warn(bus, "invalid sprom read from the PCIe card, try to use fallback sprom\n");
 		err = bcma_fill_sprom_with_fallback(bus, &bus->sprom);
-- 
cgit v0.10.2


From 92eb164258cfce173060d3fe7aaffa2afaf735d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 13 May 2013 22:07:52 +0200
Subject: bcma: prepare for supporting more SPROM sizes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index 5386cdd..c96f71c 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -502,7 +502,6 @@ static bool bcma_sprom_onchip_available(struct bcma_bus *bus)
 	case BCMA_CHIP_ID_BCM4331:
 		present = chip_status & BCMA_CC_CHIPST_4331_OTP_PRESENT;
 		break;
-
 	case BCMA_CHIP_ID_BCM43224:
 	case BCMA_CHIP_ID_BCM43225:
 		/* for these chips OTP is always available */
@@ -550,7 +549,8 @@ int bcma_sprom_get(struct bcma_bus *bus)
 {
 	u16 offset = BCMA_CC_SPROM;
 	u16 *sprom;
-	int err = 0;
+	size_t sprom_sizes[] = { SSB_SPROMSIZE_WORDS_R4, };
+	int i, err = 0;
 
 	if (!bus->drv_cc.core)
 		return -EOPNOTSUPP;
@@ -579,32 +579,37 @@ int bcma_sprom_get(struct bcma_bus *bus)
 		}
 	}
 
-	sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
-			GFP_KERNEL);
-	if (!sprom)
-		return -ENOMEM;
-
 	if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 ||
 	    bus->chipinfo.id == BCMA_CHIP_ID_BCM43431)
 		bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false);
 
 	bcma_debug(bus, "SPROM offset 0x%x\n", offset);
-	bcma_sprom_read(bus, offset, sprom, SSB_SPROMSIZE_WORDS_R4);
+	for (i = 0; i < ARRAY_SIZE(sprom_sizes); i++) {
+		size_t words = sprom_sizes[i];
+
+		sprom = kcalloc(words, sizeof(u16), GFP_KERNEL);
+		if (!sprom)
+			return -ENOMEM;
+
+		bcma_sprom_read(bus, offset, sprom, words);
+		err = bcma_sprom_valid(sprom, words);
+		if (!err)
+			break;
+
+		kfree(sprom);
+	}
 
 	if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 ||
 	    bus->chipinfo.id == BCMA_CHIP_ID_BCM43431)
 		bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true);
 
-	err = bcma_sprom_valid(sprom, SSB_SPROMSIZE_WORDS_R4);
 	if (err) {
-		bcma_warn(bus, "invalid sprom read from the PCIe card, try to use fallback sprom\n");
+		bcma_warn(bus, "Invalid SPROM read from the PCIe card, trying to use fallback SPROM\n");
 		err = bcma_fill_sprom_with_fallback(bus, &bus->sprom);
-		goto out;
+	} else {
+		bcma_sprom_extract_r8(bus, sprom);
+		kfree(sprom);
 	}
 
-	bcma_sprom_extract_r8(bus, sprom);
-
-out:
-	kfree(sprom);
 	return err;
 }
-- 
cgit v0.10.2


From 78e578c5b43c4f274305075c68d055c8d6141fd5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 13 May 2013 22:07:53 +0200
Subject: bcma: support SPROM rev 10
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is pretty much the same as rev 9, there are just 2 extra fields we
know about, but are not used/stored yet anyway.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index c96f71c..de15b4f 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -154,7 +154,8 @@ static int bcma_sprom_check_crc(const u16 *sprom, size_t words)
 	return 0;
 }
 
-static int bcma_sprom_valid(const u16 *sprom, size_t words)
+static int bcma_sprom_valid(struct bcma_bus *bus, const u16 *sprom,
+			    size_t words)
 {
 	u16 revision;
 	int err;
@@ -164,11 +165,14 @@ static int bcma_sprom_valid(const u16 *sprom, size_t words)
 		return err;
 
 	revision = sprom[words - 1] & SSB_SPROM_REVISION_REV;
-	if (revision != 8 && revision != 9) {
+	if (revision != 8 && revision != 9 && revision != 10) {
 		pr_err("Unsupported SPROM revision: %d\n", revision);
 		return -ENOENT;
 	}
 
+	bus->sprom.revision = revision;
+	bcma_debug(bus, "Found SPROM revision %d\n", revision);
+
 	return 0;
 }
 
@@ -208,9 +212,6 @@ static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom)
 	BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) !=
 			ARRAY_SIZE(bus->sprom.core_pwr_info));
 
-	bus->sprom.revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] &
-		SSB_SPROM_REVISION_REV;
-
 	for (i = 0; i < 3; i++) {
 		v = sprom[SPOFF(SSB_SPROM8_IL0MAC) + i];
 		*(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v);
@@ -549,7 +550,8 @@ int bcma_sprom_get(struct bcma_bus *bus)
 {
 	u16 offset = BCMA_CC_SPROM;
 	u16 *sprom;
-	size_t sprom_sizes[] = { SSB_SPROMSIZE_WORDS_R4, };
+	size_t sprom_sizes[] = { SSB_SPROMSIZE_WORDS_R4,
+				 SSB_SPROMSIZE_WORDS_R10, };
 	int i, err = 0;
 
 	if (!bus->drv_cc.core)
@@ -592,7 +594,7 @@ int bcma_sprom_get(struct bcma_bus *bus)
 			return -ENOMEM;
 
 		bcma_sprom_read(bus, offset, sprom, words);
-		err = bcma_sprom_valid(sprom, words);
+		err = bcma_sprom_valid(bus, sprom, words);
 		if (!err)
 			break;
 
diff --git a/include/linux/ssb/ssb_regs.h b/include/linux/ssb/ssb_regs.h
index 3a72569..f9f931c 100644
--- a/include/linux/ssb/ssb_regs.h
+++ b/include/linux/ssb/ssb_regs.h
@@ -172,6 +172,7 @@
 #define SSB_SPROMSIZE_WORDS_R4		220
 #define SSB_SPROMSIZE_BYTES_R123	(SSB_SPROMSIZE_WORDS_R123 * sizeof(u16))
 #define SSB_SPROMSIZE_BYTES_R4		(SSB_SPROMSIZE_WORDS_R4 * sizeof(u16))
+#define SSB_SPROMSIZE_WORDS_R10		230
 #define SSB_SPROM_BASE1			0x1000
 #define SSB_SPROM_BASE31		0x0800
 #define SSB_SPROM_REVISION		0x007E
-- 
cgit v0.10.2


From c56ecf5a7f0f670c0c445a3d2d0bd6c3eda7015c Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:50:18 -0700
Subject: mwifiex: rename mwifiex_free_adapter() routine in init.c

We have two different static routines with name
mwifiex_free_adapter(). The routine in main.c actually frees the
adapter structure.

We will rename other routine in init.c to mwifiex_adapter_cleanup()
to avoid confusion.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 9f44fda..58e151e 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -447,17 +447,16 @@ static void mwifiex_free_lock_list(struct mwifiex_adapter *adapter)
 }
 
 /*
- * This function frees the adapter structure.
+ * This function performs cleanup for adapter structure.
  *
- * The freeing operation is done recursively, by canceling all
- * pending commands, freeing the member buffers previously
- * allocated (command buffers, scan table buffer, sleep confirm
- * command buffer), stopping the timers and calling the cleanup
- * routines for every interface, before the actual adapter
- * structure is freed.
+ * The cleanup is done recursively, by canceling all pending
+ * commands, freeing the member buffers previously allocated
+ * (command buffers, scan table buffer, sleep confirm command
+ * buffer), stopping the timers and calling the cleanup routines
+ * for every interface.
  */
 static void
-mwifiex_free_adapter(struct mwifiex_adapter *adapter)
+mwifiex_adapter_cleanup(struct mwifiex_adapter *adapter)
 {
 	if (!adapter) {
 		pr_err("%s: adapter is NULL\n", __func__);
@@ -733,8 +732,7 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
 		}
 	}
 
-	/* Free adapter structure */
-	mwifiex_free_adapter(adapter);
+	mwifiex_adapter_cleanup(adapter);
 
 	spin_unlock_irqrestore(&adapter->mwifiex_lock, flags);
 
-- 
cgit v0.10.2


From 06041118ef0908b9cae7657a7b734699bcf61a6c Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:50:19 -0700
Subject: mwifiex: scan delay timer cleanup in unload path

Return from scan delay timer routine if surprise_removed flag
is true. Also, cancel the timer in unload path.

This fixes a crash when scan delay timer accesses structures
that have been freed already.

Tested with "iwlist mlan0 scan & sleep 1; rmmod mwifiex_sdio"

Reported-by: Daniel Drake <dsd@laptop.org>
Tested-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 58e151e..71bbf12 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -59,6 +59,9 @@ static void scan_delay_timer_fn(unsigned long data)
 	struct cmd_ctrl_node *cmd_node, *tmp_node;
 	unsigned long flags;
 
+	if (adapter->surprise_removed)
+		return;
+
 	if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT) {
 		/*
 		 * Abort scan operation by cancelling all pending scan
@@ -458,11 +461,18 @@ static void mwifiex_free_lock_list(struct mwifiex_adapter *adapter)
 static void
 mwifiex_adapter_cleanup(struct mwifiex_adapter *adapter)
 {
+	int i;
+
 	if (!adapter) {
 		pr_err("%s: adapter is NULL\n", __func__);
 		return;
 	}
 
+	for (i = 0; i < adapter->priv_num; i++) {
+		if (adapter->priv[i])
+			del_timer_sync(&adapter->priv[i]->scan_delay_timer);
+	}
+
 	mwifiex_cancel_all_pending_cmd(adapter);
 
 	/* Free lock variables */
-- 
cgit v0.10.2


From 75ab753d7704f0bd34e09d5e4081bc73fdddd775 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:50:20 -0700
Subject: mwifiex: remove global user_scan_cfg variable

As the variable is used only for preparation of internal scan
commands, we don't need to keep it allocated until the entire
scan completes. We will define it as a local variable and free
immediately after it's use.

New flag 'scan_aborting' is added to handle race between
mwifiex_close() and scan handler. Previously user_scan_cfg
pointer used to take care of this.

This patch fixes a memory leak in mwifiex_cfg80211_scan after
running "iwlist mlan0 scan & sleep 1; rmmod mwifiex_sdio".

Reported-by: Daniel Drake <dsd@laptop.org>
Tested-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index d3c8ece..fcd293c 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1859,6 +1859,7 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
 	int i, offset, ret;
 	struct ieee80211_channel *chan;
 	struct ieee_types_header *ie;
+	struct mwifiex_user_scan_cfg *user_scan_cfg;
 
 	wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
 
@@ -1869,20 +1870,22 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
 		return -EBUSY;
 	}
 
-	if (priv->user_scan_cfg) {
+	/* Block scan request if scan operation or scan cleanup when interface
+	 * is disabled is in process
+	 */
+	if (priv->scan_request || priv->scan_aborting) {
 		dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
 		return -EBUSY;
 	}
 
-	priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
-				      GFP_KERNEL);
-	if (!priv->user_scan_cfg)
+	user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
+	if (!user_scan_cfg)
 		return -ENOMEM;
 
 	priv->scan_request = request;
 
-	priv->user_scan_cfg->num_ssids = request->n_ssids;
-	priv->user_scan_cfg->ssid_list = request->ssids;
+	user_scan_cfg->num_ssids = request->n_ssids;
+	user_scan_cfg->ssid_list = request->ssids;
 
 	if (request->ie && request->ie_len) {
 		offset = 0;
@@ -1902,25 +1905,25 @@ mwifiex_cfg80211_scan(struct wiphy *wiphy,
 	for (i = 0; i < min_t(u32, request->n_channels,
 			      MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
 		chan = request->channels[i];
-		priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
-		priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
+		user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
+		user_scan_cfg->chan_list[i].radio_type = chan->band;
 
 		if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
-			priv->user_scan_cfg->chan_list[i].scan_type =
+			user_scan_cfg->chan_list[i].scan_type =
 						MWIFIEX_SCAN_TYPE_PASSIVE;
 		else
-			priv->user_scan_cfg->chan_list[i].scan_type =
+			user_scan_cfg->chan_list[i].scan_type =
 						MWIFIEX_SCAN_TYPE_ACTIVE;
 
-		priv->user_scan_cfg->chan_list[i].scan_time = 0;
+		user_scan_cfg->chan_list[i].scan_time = 0;
 	}
 
-	ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
+	ret = mwifiex_scan_networks(priv, user_scan_cfg);
+	kfree(user_scan_cfg);
 	if (ret) {
 		dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
+		priv->scan_aborting = false;
 		priv->scan_request = NULL;
-		kfree(priv->user_scan_cfg);
-		priv->user_scan_cfg = NULL;
 		return ret;
 	}
 
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 71bbf12..1343725f 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -81,19 +81,13 @@ static void scan_delay_timer_fn(unsigned long data)
 		adapter->empty_tx_q_cnt = 0;
 		spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
 
-		if (priv->user_scan_cfg) {
-			if (priv->scan_request) {
-				dev_dbg(priv->adapter->dev,
-					"info: aborting scan\n");
-				cfg80211_scan_done(priv->scan_request, 1);
-				priv->scan_request = NULL;
-			} else {
-				dev_dbg(priv->adapter->dev,
-					"info: scan already aborted\n");
-			}
-
-			kfree(priv->user_scan_cfg);
-			priv->user_scan_cfg = NULL;
+		if (priv->scan_request) {
+			dev_dbg(adapter->dev, "info: aborting scan\n");
+			cfg80211_scan_done(priv->scan_request, 1);
+			priv->scan_request = NULL;
+		} else {
+			priv->scan_aborting = false;
+			dev_dbg(adapter->dev, "info: scan already aborted\n");
 		}
 		goto done;
 	}
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 121443a..eb85186 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -436,6 +436,7 @@ mwifiex_close(struct net_device *dev)
 		dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n");
 		cfg80211_scan_done(priv->scan_request, 1);
 		priv->scan_request = NULL;
+		priv->scan_aborting = true;
 	}
 
 	return 0;
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 4ef67fc..81251d9 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -492,7 +492,6 @@ struct mwifiex_private {
 	struct semaphore async_sem;
 	u8 report_scan_result;
 	struct cfg80211_scan_request *scan_request;
-	struct mwifiex_user_scan_cfg *user_scan_cfg;
 	u8 cfg_bssid[6];
 	struct wps wps;
 	u8 scan_block;
@@ -510,6 +509,7 @@ struct mwifiex_private {
 	u8 ap_11ac_enabled;
 	u32 mgmt_frame_mask;
 	struct mwifiex_roc_cfg roc_cfg;
+	bool scan_aborting;
 };
 
 enum mwifiex_ba_status {
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 9cf5d8f..7b2566b 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1784,22 +1784,16 @@ check_next_scan:
 		if (priv->report_scan_result)
 			priv->report_scan_result = false;
 
-		if (priv->user_scan_cfg) {
-			if (priv->scan_request) {
-				dev_dbg(priv->adapter->dev,
-					"info: notifying scan done\n");
-				cfg80211_scan_done(priv->scan_request, 0);
-				priv->scan_request = NULL;
-			} else {
-				dev_dbg(priv->adapter->dev,
-					"info: scan already aborted\n");
-			}
-
-			kfree(priv->user_scan_cfg);
-			priv->user_scan_cfg = NULL;
+		if (priv->scan_request) {
+			dev_dbg(adapter->dev, "info: notifying scan done\n");
+			cfg80211_scan_done(priv->scan_request, 0);
+			priv->scan_request = NULL;
+		} else {
+			priv->scan_aborting = false;
+			dev_dbg(adapter->dev, "info: scan already aborted\n");
 		}
 	} else {
-		if (priv->user_scan_cfg && !priv->scan_request) {
+		if (priv->scan_aborting && !priv->scan_request) {
 			spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
 					       flags);
 			adapter->scan_delay_cnt = MWIFIEX_MAX_SCAN_DELAY_CNT;
-- 
cgit v0.10.2


From 4c1079e1583958b83d7355ccbba686ad08b67015 Mon Sep 17 00:00:00 2001
From: Bing Zhao <bzhao@marvell.com>
Date: Fri, 17 May 2013 17:50:21 -0700
Subject: mwifiex: abort remaining scan commands when association started

A full-channel scan is split to multiple scan commands in driver
before they are sent to firmware. When each scan result is back
the SSID entries are parsed and informed to cfg80211 directly.

It's observed that sometimes userspace may initiate association
as soon as the target AP is found. During the 4-way handshake
firmware may go off-channel to scan the remaining channels.
This causes the 4-way handshake to fail.

Fix it by checking 'scan_block' flag and aborting the remaining
scan in this case. 'scan_block' flag is set after association
and before 4-way handshake. It gets cleared after 4-way handshake
is completed.

Tested-by: Jason Abele <jabele@chromium.org>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 7b2566b..801b6b7 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -1793,7 +1793,8 @@ check_next_scan:
 			dev_dbg(adapter->dev, "info: scan already aborted\n");
 		}
 	} else {
-		if (priv->scan_aborting && !priv->scan_request) {
+		if ((priv->scan_aborting && !priv->scan_request) ||
+		    priv->scan_block) {
 			spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
 					       flags);
 			adapter->scan_delay_cnt = MWIFIEX_MAX_SCAN_DELAY_CNT;
-- 
cgit v0.10.2


From bdd4d6bf59c046e5a3d1ac67ba7b1c9ea540b6e3 Mon Sep 17 00:00:00 2001
From: Avinash Patil <patila@marvell.com>
Date: Fri, 17 May 2013 17:50:22 -0700
Subject: mwifiex: avoid deleting all stations during mwifiex_del_sta_entry()

During deleting a station entry from associated sta_list, we are
supposed to delete entry only for this particular mac address.
This patch is a bug fix wherein we were deleting all entries from
list; fix this by removing list_for_each_entry_safe() call.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/uap_event.c b/drivers/net/wireless/mwifiex/uap_event.c
index 21c640d..77fb533 100644
--- a/drivers/net/wireless/mwifiex/uap_event.c
+++ b/drivers/net/wireless/mwifiex/uap_event.c
@@ -107,18 +107,15 @@ mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies,
  */
 static void mwifiex_del_sta_entry(struct mwifiex_private *priv, u8 *mac)
 {
-	struct mwifiex_sta_node *node, *tmp;
+	struct mwifiex_sta_node *node;
 	unsigned long flags;
 
 	spin_lock_irqsave(&priv->sta_list_spinlock, flags);
 
 	node = mwifiex_get_sta_entry(priv, mac);
 	if (node) {
-		list_for_each_entry_safe(node, tmp, &priv->sta_list,
-					 list) {
-			list_del(&node->list);
-			kfree(node);
-		}
+		list_del(&node->list);
+		kfree(node);
 	}
 
 	spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
-- 
cgit v0.10.2


From 0f9e9b8ba72bc75ee6189d0e86639f7e7a494a30 Mon Sep 17 00:00:00 2001
From: Avinash Patil <patila@marvell.com>
Date: Fri, 17 May 2013 17:50:23 -0700
Subject: mwifiex: add del_station handler

This patch adds cfg80211 del_station handler for mwifiex.
If bss is not started or there are no stations in associated
stations list, no action is taken. If argument received is
null/broadcast mac, all stations in associated station list are
deauthenticated.

Patch also deletes related RxReorder stream and TxBA stream tables
for related station.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index fcd293c..af79daa 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1231,6 +1231,51 @@ static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
 	return 0;
 }
 
+/* cfg80211 operation handler for del_station.
+ * Function deauthenticates station which value is provided in mac parameter.
+ * If mac is NULL/broadcast, all stations in associated station list are
+ * deauthenticated. If bss is not started or there are no stations in
+ * associated stations list, no action is taken.
+ */
+static int
+mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
+			     u8 *mac)
+{
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
+	struct mwifiex_sta_node *sta_node;
+	unsigned long flags;
+
+	if (list_empty(&priv->sta_list) || !priv->bss_started)
+		return 0;
+
+	if (!mac || is_broadcast_ether_addr(mac)) {
+		wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
+		list_for_each_entry(sta_node, &priv->sta_list, list) {
+			if (mwifiex_send_cmd_sync(priv,
+						  HostCmd_CMD_UAP_STA_DEAUTH,
+						  HostCmd_ACT_GEN_SET, 0,
+						  sta_node->mac_addr))
+				return -1;
+			mwifiex_uap_del_sta_data(priv, sta_node);
+		}
+	} else {
+		wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
+		spin_lock_irqsave(&priv->sta_list_spinlock, flags);
+		sta_node = mwifiex_get_sta_entry(priv, mac);
+		spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
+		if (sta_node) {
+			if (mwifiex_send_cmd_sync(priv,
+						  HostCmd_CMD_UAP_STA_DEAUTH,
+						  HostCmd_ACT_GEN_SET, 0,
+						  sta_node->mac_addr))
+				return -1;
+			mwifiex_uap_del_sta_data(priv, sta_node);
+		}
+	}
+
+	return 0;
+}
+
 static int
 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
 {
@@ -2425,6 +2470,7 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = {
 	.change_beacon = mwifiex_cfg80211_change_beacon,
 	.set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
 	.set_antenna = mwifiex_cfg80211_set_antenna,
+	.del_station = mwifiex_cfg80211_del_station,
 #ifdef CONFIG_PM
 	.suspend = mwifiex_cfg80211_suspend,
 	.resume = mwifiex_cfg80211_resume,
diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index 74db0d2..4a32f27 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -570,6 +570,7 @@ int mwifiex_send_cmd_async(struct mwifiex_private *priv, uint16_t cmd_no,
 		case HostCmd_CMD_UAP_SYS_CONFIG:
 		case HostCmd_CMD_UAP_BSS_START:
 		case HostCmd_CMD_UAP_BSS_STOP:
+		case HostCmd_CMD_UAP_STA_DEAUTH:
 			ret = mwifiex_uap_prepare_cmd(priv, cmd_no, cmd_action,
 						      cmd_oid, data_buf,
 						      cmd_ptr);
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index 1f7578d..d3c1e01 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -279,6 +279,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define HostCmd_CMD_UAP_SYS_CONFIG                    0x00b0
 #define HostCmd_CMD_UAP_BSS_START                     0x00b1
 #define HostCmd_CMD_UAP_BSS_STOP                      0x00b2
+#define HostCmd_CMD_UAP_STA_DEAUTH                    0x00b5
 #define HostCmd_CMD_11N_CFG                           0x00cd
 #define HostCmd_CMD_11N_ADDBA_REQ                     0x00ce
 #define HostCmd_CMD_11N_ADDBA_RSP                     0x00cf
@@ -1197,6 +1198,11 @@ struct host_cmd_ds_amsdu_aggr_ctrl {
 	__le16 curr_buf_size;
 } __packed;
 
+struct host_cmd_ds_sta_deauth {
+	u8 mac[ETH_ALEN];
+	__le16 reason;
+} __packed;
+
 struct mwifiex_ie_types_wmm_param_set {
 	struct mwifiex_ie_types_header header;
 	u8 wmm_ie[1];
@@ -1630,6 +1636,7 @@ struct host_cmd_ds_command {
 		struct host_cmd_ds_802_11_eeprom_access eeprom;
 		struct host_cmd_ds_802_11_subsc_evt subsc_evt;
 		struct host_cmd_ds_sys_config uap_sys_config;
+		struct host_cmd_ds_sta_deauth sta_deauth;
 		struct host_cmd_11ac_vht_cfg vht_cfg;
 	} params;
 } __packed;
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 81251d9..9cf6852 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -1115,6 +1115,8 @@ int mwifiex_set_mgmt_ies(struct mwifiex_private *priv,
 			 struct cfg80211_beacon_data *data);
 int mwifiex_del_mgmt_ies(struct mwifiex_private *priv);
 u8 *mwifiex_11d_code_2_region(u8 code);
+void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
+			      struct mwifiex_sta_node *node);
 
 extern const struct ethtool_ops mwifiex_ethtool_ops;
 
diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index 9f990e1..c710a1b 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -978,6 +978,8 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 	case HostCmd_CMD_UAP_BSS_STOP:
 		priv->bss_started = 0;
 		break;
+	case HostCmd_CMD_UAP_STA_DEAUTH:
+		break;
 	case HostCmd_CMD_MEF_CFG:
 		break;
 	default:
diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c
index b04b1db..2de882d 100644
--- a/drivers/net/wireless/mwifiex/uap_cmd.c
+++ b/drivers/net/wireless/mwifiex/uap_cmd.c
@@ -689,6 +689,23 @@ mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd, u16 cmd_action,
 	return 0;
 }
 
+/* This function prepares AP specific deauth command with mac supplied in
+ * function parameter.
+ */
+static int mwifiex_cmd_uap_sta_deauth(struct mwifiex_private *priv,
+				      struct host_cmd_ds_command *cmd, u8 *mac)
+{
+	struct host_cmd_ds_sta_deauth *sta_deauth = &cmd->params.sta_deauth;
+
+	cmd->command = cpu_to_le16(HostCmd_CMD_UAP_STA_DEAUTH);
+	memcpy(sta_deauth->mac, mac, ETH_ALEN);
+	sta_deauth->reason = cpu_to_le16(WLAN_REASON_DEAUTH_LEAVING);
+
+	cmd->size = cpu_to_le16(sizeof(struct host_cmd_ds_sta_deauth) +
+				S_DS_GEN);
+	return 0;
+}
+
 /* This function prepares the AP specific commands before sending them
  * to the firmware.
  * This is a generic function which calls specific command preparation
@@ -710,6 +727,10 @@ int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
 		cmd->command = cpu_to_le16(cmd_no);
 		cmd->size = cpu_to_le16(S_DS_GEN);
 		break;
+	case HostCmd_CMD_UAP_STA_DEAUTH:
+		if (mwifiex_cmd_uap_sta_deauth(priv, cmd, data_buf))
+			return -1;
+		break;
 	default:
 		dev_err(priv->adapter->dev,
 			"PREP_CMD: unknown cmd %#x\n", cmd_no);
diff --git a/drivers/net/wireless/mwifiex/uap_event.c b/drivers/net/wireless/mwifiex/uap_event.c
index 77fb533..7180665 100644
--- a/drivers/net/wireless/mwifiex/uap_event.c
+++ b/drivers/net/wireless/mwifiex/uap_event.c
@@ -292,3 +292,19 @@ int mwifiex_process_uap_event(struct mwifiex_private *priv)
 
 	return 0;
 }
+
+/* This function deletes station entry from associated station list.
+ * Also if both AP and STA are 11n enabled, RxReorder tables and TxBA stream
+ * tables created for this station are deleted.
+ */
+void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
+			      struct mwifiex_sta_node *node)
+{
+	if (priv->ap_11n_enabled && node->is_11n_enabled) {
+		mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, node->mac_addr);
+		mwifiex_del_tx_ba_stream_tbl_by_ra(priv, node->mac_addr);
+	}
+	mwifiex_del_sta_entry(priv, node->mac_addr);
+
+	return;
+}
-- 
cgit v0.10.2


From 013a492ecf2e6e1dd424d589fb27170e2481733f Mon Sep 17 00:00:00 2001
From: Avinash Patil <patila@marvell.com>
Date: Fri, 17 May 2013 17:50:24 -0700
Subject: mwifiex: replace spin_lock_irqsave with spin_lock and fix warn_on

We see this WARN_ON during PCIe unload:
WARNING: at kernel/smp.c:382 smp_call_function_many+0x66/0x1e1()

This happens because we are doing PCI iounmap operations while
holding spinlock via spin_lock_irqsave(). Holding spinlock this
way causes disabling IRQs and hence PCI iounmap shows warning on
irqs_disabled() check.

Use non-irq variant of spin_lock i.e. spin_lock() instead.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 1343725f..c7f11c0 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -687,7 +687,6 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
 	int ret = -EINPROGRESS;
 	struct mwifiex_private *priv;
 	s32 i;
-	unsigned long flags;
 	struct sk_buff *skb;
 
 	/* mwifiex already shutdown */
@@ -722,7 +721,7 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
 		}
 	}
 
-	spin_lock_irqsave(&adapter->mwifiex_lock, flags);
+	spin_lock(&adapter->mwifiex_lock);
 
 	if (adapter->if_ops.data_complete) {
 		while ((skb = skb_dequeue(&adapter->usb_rx_data_q))) {
@@ -738,7 +737,7 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
 
 	mwifiex_adapter_cleanup(adapter);
 
-	spin_unlock_irqrestore(&adapter->mwifiex_lock, flags);
+	spin_unlock(&adapter->mwifiex_lock);
 
 	/* Notify completion */
 	ret = mwifiex_shutdown_fw_complete(adapter);
-- 
cgit v0.10.2


From 388ec385d5ce4916f0677918a42e592ba423092d Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:50:25 -0700
Subject: mwifiex: add calibration data download feature

User can provide a text file containing calibration data in hex
format while loading mwifiex module. It will be downloaded to
firmware.
eg. insmod mwifiex.ko cal_data_cfg=cal_data.conf

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index d3c1e01..d6ada73 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -271,6 +271,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define HostCmd_CMD_802_11_SUBSCRIBE_EVENT            0x0075
 #define HostCmd_CMD_802_11_TX_RATE_QUERY              0x007f
 #define HostCmd_CMD_802_11_IBSS_COALESCING_STATUS     0x0083
+#define HostCmd_CMD_CFG_DATA                          0x008f
 #define HostCmd_CMD_VERSION_EXT                       0x0097
 #define HostCmd_CMD_MEF_CFG                           0x009a
 #define HostCmd_CMD_RSSI_INFO                         0x00a4
@@ -465,6 +466,8 @@ enum P2P_MODES {
 #define MWIFIEX_CRITERIA_UNICAST	BIT(1)
 #define MWIFIEX_CRITERIA_MULTICAST	BIT(3)
 
+#define CFG_DATA_TYPE_CAL		2
+
 struct mwifiex_ie_types_header {
 	__le16 type;
 	__le16 len;
@@ -1579,6 +1582,12 @@ struct mwifiex_ie_list {
 	struct mwifiex_ie ie_list[MAX_MGMT_IE_INDEX];
 } __packed;
 
+struct host_cmd_ds_802_11_cfg_data {
+	__le16 action;
+	__le16 type;
+	__le16 data_len;
+} __packed;
+
 struct host_cmd_ds_command {
 	__le16 command;
 	__le16 size;
@@ -1638,6 +1647,7 @@ struct host_cmd_ds_command {
 		struct host_cmd_ds_sys_config uap_sys_config;
 		struct host_cmd_ds_sta_deauth sta_deauth;
 		struct host_cmd_11ac_vht_cfg vht_cfg;
+		struct host_cmd_ds_802_11_cfg_data cfg_data;
 	} params;
 } __packed;
 
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index eb85186..29d83f0 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -25,6 +25,8 @@
 #define VERSION	"1.0"
 
 const char driver_version[] = "mwifiex " VERSION " (%s) ";
+static char *cal_data_cfg;
+module_param(cal_data_cfg, charp, 0);
 
 /*
  * This function registers the device and performs all the necessary
@@ -336,6 +338,13 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 
 	dev_notice(adapter->dev, "WLAN FW is active\n");
 
+	if (cal_data_cfg) {
+		if ((request_firmware(&adapter->cal_data, cal_data_cfg,
+				      adapter->dev)) < 0)
+			dev_err(adapter->dev,
+				"Cal data request_firmware() failed\n");
+	}
+
 	adapter->init_wait_q_woken = false;
 	ret = mwifiex_init_fw(adapter);
 	if (ret == -1) {
@@ -390,6 +399,10 @@ err_init_fw:
 	pr_debug("info: %s: unregister device\n", __func__);
 	adapter->if_ops.unregister_dev(adapter);
 done:
+	if (adapter->cal_data) {
+		release_firmware(adapter->cal_data);
+		adapter->cal_data = NULL;
+	}
 	release_firmware(adapter->firmware);
 	complete(&adapter->fw_load);
 	return;
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 9cf6852..0832c24 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -730,6 +730,7 @@ struct mwifiex_adapter {
 	u16 max_mgmt_ie_index;
 	u8 scan_delay_cnt;
 	u8 empty_tx_q_cnt;
+	const struct firmware *cal_data;
 
 	/* 11AC */
 	u32 is_hw_11ac_capable;
diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c
index b193e25..8ece485 100644
--- a/drivers/net/wireless/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/mwifiex/sta_cmd.c
@@ -1134,6 +1134,55 @@ mwifiex_cmd_mef_cfg(struct mwifiex_private *priv,
 	return 0;
 }
 
+/* This function parse cal data from ASCII to hex */
+static u32 mwifiex_parse_cal_cfg(u8 *src, size_t len, u8 *dst)
+{
+	u8 *s = src, *d = dst;
+
+	while (s - src < len) {
+		if (*s && (isspace(*s) || *s == '\t')) {
+			s++;
+			continue;
+		}
+		if (isxdigit(*s)) {
+			*d++ = simple_strtol(s, NULL, 16);
+			s += 2;
+		} else {
+			s++;
+		}
+	}
+
+	return d - dst;
+}
+
+/* This function prepares command of set_cfg_data. */
+static int mwifiex_cmd_cfg_data(struct mwifiex_private *priv,
+				struct host_cmd_ds_command *cmd,
+				u16 cmd_action)
+{
+	struct host_cmd_ds_802_11_cfg_data *cfg_data = &cmd->params.cfg_data;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	u32 len, cal_data_offset;
+	u8 *tmp_cmd = (u8 *)cmd;
+
+	cal_data_offset = S_DS_GEN + sizeof(*cfg_data);
+	if ((adapter->cal_data->data) && (adapter->cal_data->size > 0))
+		len = mwifiex_parse_cal_cfg((u8 *)adapter->cal_data->data,
+					    adapter->cal_data->size,
+					    (u8 *)(tmp_cmd + cal_data_offset));
+	else
+		return -1;
+
+	cfg_data->action = cpu_to_le16(cmd_action);
+	cfg_data->type = cpu_to_le16(CFG_DATA_TYPE_CAL);
+	cfg_data->data_len = cpu_to_le16(len);
+
+	cmd->command = cpu_to_le16(HostCmd_CMD_CFG_DATA);
+	cmd->size = cpu_to_le16(S_DS_GEN + sizeof(*cfg_data) + len);
+
+	return 0;
+}
+
 /*
  * This function prepares the commands before sending them to the firmware.
  *
@@ -1152,6 +1201,9 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
 	case HostCmd_CMD_GET_HW_SPEC:
 		ret = mwifiex_cmd_get_hw_spec(priv, cmd_ptr);
 		break;
+	case HostCmd_CMD_CFG_DATA:
+		ret = mwifiex_cmd_cfg_data(priv, cmd_ptr, cmd_action);
+		break;
 	case HostCmd_CMD_MAC_CONTROL:
 		ret = mwifiex_cmd_mac_control(priv, cmd_ptr, cmd_action,
 					      data_buf);
@@ -1384,6 +1436,7 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
  */
 int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta)
 {
+	struct mwifiex_adapter *adapter = priv->adapter;
 	int ret;
 	u16 enable = true;
 	struct mwifiex_ds_11n_amsdu_aggr_ctrl amsdu_aggr_ctrl;
@@ -1404,6 +1457,15 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta)
 					    HostCmd_ACT_GEN_SET, 0, NULL);
 		if (ret)
 			return -1;
+
+		/* Download calibration data to firmware */
+		if (adapter->cal_data) {
+			ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_CFG_DATA,
+						HostCmd_ACT_GEN_SET, 0, NULL);
+			if (ret)
+				return -1;
+		}
+
 		/* Read MAC address from HW */
 		ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_GET_HW_SPEC,
 					    HostCmd_ACT_GEN_GET, 0, NULL);
diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index c710a1b..d85df15 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -818,6 +818,18 @@ static int mwifiex_ret_subsc_evt(struct mwifiex_private *priv,
 	return 0;
 }
 
+/* This function handles the command response of set_cfg_data */
+static int mwifiex_ret_cfg_data(struct mwifiex_private *priv,
+				struct host_cmd_ds_command *resp)
+{
+	if (resp->result != HostCmd_RESULT_OK) {
+		dev_err(priv->adapter->dev, "Cal data cmd resp failed\n");
+		return -1;
+	}
+
+	return 0;
+}
+
 /*
  * This function handles the command responses.
  *
@@ -841,6 +853,9 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no,
 	case HostCmd_CMD_GET_HW_SPEC:
 		ret = mwifiex_ret_get_hw_spec(priv, resp);
 		break;
+	case HostCmd_CMD_CFG_DATA:
+		ret = mwifiex_ret_cfg_data(priv, resp);
+		break;
 	case HostCmd_CMD_MAC_CONTROL:
 		break;
 	case HostCmd_CMD_802_11_MAC_ADDRESS:
-- 
cgit v0.10.2


From 5ac253d50bd6d0b092da3d2476368aa857c10ee4 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:50:26 -0700
Subject: mwifiex: use u32 variables for SDIO read/write port bitmap

Currently supported SDIO chipsets (SD87XX) have 16 ports.
This change is a prerequisite for new chipset.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 363ba31..7368ee1 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -486,21 +486,21 @@ static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
 static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
 {
 	struct sdio_mmc_card *card = adapter->card;
-	u16 rd_bitmap = card->mp_rd_bitmap;
+	u32 rd_bitmap = card->mp_rd_bitmap;
 
-	dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%04x\n", rd_bitmap);
+	dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
 
 	if (!(rd_bitmap & (CTRL_PORT_MASK | DATA_PORT_MASK)))
 		return -1;
 
 	if (card->mp_rd_bitmap & CTRL_PORT_MASK) {
-		card->mp_rd_bitmap &= (u16) (~CTRL_PORT_MASK);
+		card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK);
 		*port = CTRL_PORT;
-		dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%04x\n",
+		dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%08x\n",
 			*port, card->mp_rd_bitmap);
 	} else {
 		if (card->mp_rd_bitmap & (1 << card->curr_rd_port)) {
-			card->mp_rd_bitmap &= (u16)
+			card->mp_rd_bitmap &= (u32)
 						(~(1 << card->curr_rd_port));
 			*port = card->curr_rd_port;
 
@@ -511,7 +511,7 @@ static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
 		}
 
 		dev_dbg(adapter->dev,
-			"data: port=%d mp_rd_bitmap=0x%04x -> 0x%04x\n",
+			"data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
 			*port, rd_bitmap, card->mp_rd_bitmap);
 	}
 	return 0;
@@ -527,15 +527,15 @@ static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
 static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u8 *port)
 {
 	struct sdio_mmc_card *card = adapter->card;
-	u16 wr_bitmap = card->mp_wr_bitmap;
+	u32 wr_bitmap = card->mp_wr_bitmap;
 
-	dev_dbg(adapter->dev, "data: mp_wr_bitmap=0x%04x\n", wr_bitmap);
+	dev_dbg(adapter->dev, "data: mp_wr_bitmap=0x%08x\n", wr_bitmap);
 
 	if (!(wr_bitmap & card->mp_data_port_mask))
 		return -1;
 
 	if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
-		card->mp_wr_bitmap &= (u16) (~(1 << card->curr_wr_port));
+		card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
 		*port = card->curr_wr_port;
 		if (++card->curr_wr_port == card->mp_end_port)
 			card->curr_wr_port = 1;
@@ -545,14 +545,14 @@ static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u8 *port)
 	}
 
 	if (*port == CTRL_PORT) {
-		dev_err(adapter->dev, "invalid data port=%d cur port=%d"
-			" mp_wr_bitmap=0x%04x -> 0x%04x\n",
+		dev_err(adapter->dev,
+			"invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
 			*port, card->curr_wr_port, wr_bitmap,
 			card->mp_wr_bitmap);
 		return -1;
 	}
 
-	dev_dbg(adapter->dev, "data: port=%d mp_wr_bitmap=0x%04x -> 0x%04x\n",
+	dev_dbg(adapter->dev, "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
 		*port, wr_bitmap, card->mp_wr_bitmap);
 
 	return 0;
@@ -1024,7 +1024,7 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 		goto rx_curr_single;
 	}
 
-	if (card->mp_rd_bitmap & (~((u16) CTRL_PORT_MASK))) {
+	if (card->mp_rd_bitmap & (~((u32) CTRL_PORT_MASK))) {
 		/* Some more data RX pending */
 		dev_dbg(adapter->dev, "info: %s: not last packet\n", __func__);
 
@@ -1185,9 +1185,9 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 		return ret;
 
 	if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
-		card->mp_wr_bitmap = ((u16) card->mp_regs[WR_BITMAP_U]) << 8;
-		card->mp_wr_bitmap |= (u16) card->mp_regs[WR_BITMAP_L];
-		dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%04x\n",
+		card->mp_wr_bitmap = ((u32) card->mp_regs[WR_BITMAP_U]) << 8;
+		card->mp_wr_bitmap |= (u32) card->mp_regs[WR_BITMAP_L];
+		dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%08x\n",
 			card->mp_wr_bitmap);
 		if (adapter->data_sent &&
 		    (card->mp_wr_bitmap & card->mp_data_port_mask)) {
@@ -1204,7 +1204,7 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 		/* Check if firmware has attach buffer at command port and
 		   update just that in wr_bit_map. */
 		card->mp_wr_bitmap |=
-			(u16) card->mp_regs[WR_BITMAP_L] & CTRL_PORT_MASK;
+			(u32) card->mp_regs[WR_BITMAP_L] & CTRL_PORT_MASK;
 		if (card->mp_wr_bitmap & CTRL_PORT_MASK)
 			adapter->cmd_sent = false;
 	}
@@ -1212,9 +1212,9 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 	dev_dbg(adapter->dev, "info: cmd_sent=%d data_sent=%d\n",
 		adapter->cmd_sent, adapter->data_sent);
 	if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
-		card->mp_rd_bitmap = ((u16) card->mp_regs[RD_BITMAP_U]) << 8;
-		card->mp_rd_bitmap |= (u16) card->mp_regs[RD_BITMAP_L];
-		dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%04x\n",
+		card->mp_rd_bitmap = ((u32) card->mp_regs[RD_BITMAP_U]) << 8;
+		card->mp_rd_bitmap |= (u32) card->mp_regs[RD_BITMAP_L];
+		dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%08x\n",
 			card->mp_rd_bitmap);
 
 		while (true) {
diff --git a/drivers/net/wireless/mwifiex/sdio.h b/drivers/net/wireless/mwifiex/sdio.h
index 8cc5468..6588069 100644
--- a/drivers/net/wireless/mwifiex/sdio.h
+++ b/drivers/net/wireless/mwifiex/sdio.h
@@ -261,7 +261,7 @@ struct mwifiex_sdio_mpa_tx {
 	u8 *buf;
 	u32 buf_len;
 	u32 pkt_cnt;
-	u16 ports;
+	u32 ports;
 	u16 start_port;
 	u8 enabled;
 	u32 buf_size;
@@ -272,7 +272,7 @@ struct mwifiex_sdio_mpa_rx {
 	u8 *buf;
 	u32 buf_len;
 	u32 pkt_cnt;
-	u16 ports;
+	u32 ports;
 	u16 start_port;
 
 	struct sk_buff *skb_arr[SDIO_MP_AGGR_DEF_PKT_LIMIT];
@@ -290,11 +290,11 @@ struct sdio_mmc_card {
 	struct sdio_func *func;
 	struct mwifiex_adapter *adapter;
 
-	u16 mp_rd_bitmap;
-	u16 mp_wr_bitmap;
+	u32 mp_rd_bitmap;
+	u32 mp_wr_bitmap;
 
 	u16 mp_end_port;
-	u16 mp_data_port_mask;
+	u32 mp_data_port_mask;
 
 	u8 curr_rd_port;
 	u8 curr_wr_port;
-- 
cgit v0.10.2


From 05889f825397805bf2d6c40594195ccb8aca7b75 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:50:27 -0700
Subject: mwifiex: store SDIO chip specific information in separate structure

Register addresses, firmware name and some macros are specific to
a chip. They are stored in a new structure.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 7368ee1..022e9fd 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -77,6 +77,15 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
 
 	func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
 
+	if (id->driver_data) {
+		struct mwifiex_sdio_device *data = (void *)id->driver_data;
+
+		card->firmware = data->firmware;
+		card->reg = data->reg;
+		card->max_ports = data->max_ports;
+		card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
+	}
+
 	sdio_claim_host(func);
 	ret = sdio_enable_func(func);
 	sdio_release_host(func);
@@ -254,9 +263,12 @@ static int mwifiex_sdio_resume(struct device *dev)
 
 /* WLAN IDs */
 static const struct sdio_device_id mwifiex_ids[] = {
-	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786)},
-	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787)},
-	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797)},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786),
+		.driver_data = (unsigned long) &mwifiex_sdio_sd8786},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787),
+		.driver_data = (unsigned long) &mwifiex_sdio_sd8787},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797),
+		.driver_data = (unsigned long) &mwifiex_sdio_sd8797},
 	{},
 };
 
@@ -410,6 +422,7 @@ static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
 {
 	u32 reg;
+	struct sdio_mmc_card *card = adapter->card;
 
 	adapter->ioport = 0;
 
@@ -434,13 +447,13 @@ static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
 	/* Set Host interrupt reset to read to clear */
 	if (!mwifiex_read_reg(adapter, HOST_INT_RSR_REG, &reg))
 		mwifiex_write_reg(adapter, HOST_INT_RSR_REG,
-				  reg | SDIO_INT_MASK);
+				  reg | card->reg->sdio_int_mask);
 	else
 		return -1;
 
 	/* Dnld/Upld ready set to auto reset */
-	if (!mwifiex_read_reg(adapter, CARD_MISC_CFG_REG, &reg))
-		mwifiex_write_reg(adapter, CARD_MISC_CFG_REG,
+	if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, &reg))
+		mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg,
 				  reg | AUTO_RE_ENABLE_INT);
 	else
 		return -1;
@@ -486,11 +499,12 @@ static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
 static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
 {
 	struct sdio_mmc_card *card = adapter->card;
+	const struct mwifiex_sdio_card_reg *reg = card->reg;
 	u32 rd_bitmap = card->mp_rd_bitmap;
 
 	dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
 
-	if (!(rd_bitmap & (CTRL_PORT_MASK | DATA_PORT_MASK)))
+	if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
 		return -1;
 
 	if (card->mp_rd_bitmap & CTRL_PORT_MASK) {
@@ -504,8 +518,8 @@ static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
 						(~(1 << card->curr_rd_port));
 			*port = card->curr_rd_port;
 
-			if (++card->curr_rd_port == MAX_PORT)
-				card->curr_rd_port = 1;
+			if (++card->curr_rd_port == card->max_ports)
+				card->curr_rd_port = reg->start_rd_port;
 		} else {
 			return -1;
 		}
@@ -538,7 +552,7 @@ static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u8 *port)
 		card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
 		*port = card->curr_wr_port;
 		if (++card->curr_wr_port == card->mp_end_port)
-			card->curr_wr_port = 1;
+			card->curr_wr_port = card->reg->start_wr_port;
 	} else {
 		adapter->data_sent = true;
 		return -EBUSY;
@@ -564,11 +578,12 @@ static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u8 *port)
 static int
 mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
 {
+	struct sdio_mmc_card *card = adapter->card;
 	u32 tries;
 	u32 cs;
 
 	for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
-		if (mwifiex_read_reg(adapter, CARD_STATUS_REG, &cs))
+		if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs))
 			break;
 		else if ((cs & bits) == bits)
 			return 0;
@@ -587,12 +602,14 @@ mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
 static int
 mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
 {
+	struct sdio_mmc_card *card = adapter->card;
+	const struct mwifiex_sdio_card_reg *reg = card->reg;
 	u32 fws0, fws1;
 
-	if (mwifiex_read_reg(adapter, CARD_FW_STATUS0_REG, &fws0))
+	if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0))
 		return -1;
 
-	if (mwifiex_read_reg(adapter, CARD_FW_STATUS1_REG, &fws1))
+	if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1))
 		return -1;
 
 	*dat = (u16) ((fws1 << 8) | fws0);
@@ -633,8 +650,11 @@ static int mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
  */
 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter)
 {
+	struct sdio_mmc_card *card = adapter->card;
+
 	/* Simply write the mask to the register */
-	if (mwifiex_write_reg(adapter, HOST_INT_MASK_REG, HOST_INT_ENABLE)) {
+	if (mwifiex_write_reg(adapter, HOST_INT_MASK_REG,
+			      card->reg->host_int_enable)) {
 		dev_err(adapter->dev, "enable host interrupt failed\n");
 		return -1;
 	}
@@ -686,6 +706,8 @@ static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter,
 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
 				    struct mwifiex_fw_image *fw)
 {
+	struct sdio_mmc_card *card = adapter->card;
+	const struct mwifiex_sdio_card_reg *reg = card->reg;
 	int ret;
 	u8 *firmware = fw->fw_buf;
 	u32 firmware_len = fw->fw_len;
@@ -727,7 +749,7 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
 			break;
 
 		for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
-			ret = mwifiex_read_reg(adapter, HOST_F1_RD_BASE_0,
+			ret = mwifiex_read_reg(adapter, reg->base_0_reg,
 					       &base0);
 			if (ret) {
 				dev_err(adapter->dev,
@@ -736,7 +758,7 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
 					base0, base0);
 				goto done;
 			}
-			ret = mwifiex_read_reg(adapter, HOST_F1_RD_BASE_1,
+			ret = mwifiex_read_reg(adapter, reg->base_1_reg,
 					       &base1);
 			if (ret) {
 				dev_err(adapter->dev,
@@ -828,6 +850,7 @@ done:
 static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
 				   u32 poll_num)
 {
+	struct sdio_mmc_card *card = adapter->card;
 	int ret = 0;
 	u16 firmware_stat;
 	u32 tries;
@@ -849,7 +872,7 @@ static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
 
 	if (ret) {
 		if (mwifiex_read_reg
-		    (adapter, CARD_FW_STATUS0_REG, &winner_status))
+		    (adapter, card->reg->status_reg_0, &winner_status))
 			winner_status = 0;
 
 		if (winner_status)
@@ -869,9 +892,9 @@ static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
 	u32 sdio_ireg;
 	unsigned long flags;
 
-	if (mwifiex_read_data_sync(adapter, card->mp_regs, MAX_MP_REGS,
-				   REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK,
-				   0)) {
+	if (mwifiex_read_data_sync(adapter, card->mp_regs,
+				   card->reg->max_mp_regs,
+				   REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) {
 		dev_err(adapter->dev, "read mp_regs failed\n");
 		return;
 	}
@@ -1167,6 +1190,7 @@ error:
 static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 {
 	struct sdio_mmc_card *card = adapter->card;
+	const struct mwifiex_sdio_card_reg *reg = card->reg;
 	int ret = 0;
 	u8 sdio_ireg;
 	struct sk_buff *skb;
@@ -1185,8 +1209,10 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 		return ret;
 
 	if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
-		card->mp_wr_bitmap = ((u32) card->mp_regs[WR_BITMAP_U]) << 8;
-		card->mp_wr_bitmap |= (u32) card->mp_regs[WR_BITMAP_L];
+		card->mp_wr_bitmap =
+			((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
+		card->mp_wr_bitmap |=
+			(u32) card->mp_regs[reg->wr_bitmap_l];
 		dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%08x\n",
 			card->mp_wr_bitmap);
 		if (adapter->data_sent &&
@@ -1204,7 +1230,7 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 		/* Check if firmware has attach buffer at command port and
 		   update just that in wr_bit_map. */
 		card->mp_wr_bitmap |=
-			(u32) card->mp_regs[WR_BITMAP_L] & CTRL_PORT_MASK;
+			(u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK;
 		if (card->mp_wr_bitmap & CTRL_PORT_MASK)
 			adapter->cmd_sent = false;
 	}
@@ -1212,8 +1238,9 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 	dev_dbg(adapter->dev, "info: cmd_sent=%d data_sent=%d\n",
 		adapter->cmd_sent, adapter->data_sent);
 	if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
-		card->mp_rd_bitmap = ((u32) card->mp_regs[RD_BITMAP_U]) << 8;
-		card->mp_rd_bitmap |= (u32) card->mp_regs[RD_BITMAP_L];
+		card->mp_rd_bitmap =
+			((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
+		card->mp_rd_bitmap |= (u32) card->mp_regs[reg->rd_bitmap_l];
 		dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%08x\n",
 			card->mp_rd_bitmap);
 
@@ -1224,8 +1251,8 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 					"info: no more rd_port available\n");
 				break;
 			}
-			len_reg_l = RD_LEN_P0_L + (port << 1);
-			len_reg_u = RD_LEN_P0_U + (port << 1);
+			len_reg_l = reg->rd_len_p0_l + (port << 1);
+			len_reg_u = reg->rd_len_p0_u + (port << 1);
 			rx_len = ((u16) card->mp_regs[len_reg_u]) << 8;
 			rx_len |= (u16) card->mp_regs[len_reg_l];
 			dev_dbg(adapter->dev, "info: RX: port=%d rx_len=%u\n",
@@ -1586,18 +1613,7 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
 
 	adapter->dev = &func->dev;
 
-	switch (func->device) {
-	case SDIO_DEVICE_ID_MARVELL_8786:
-		strcpy(adapter->fw_name, SD8786_DEFAULT_FW_NAME);
-		break;
-	case SDIO_DEVICE_ID_MARVELL_8797:
-		strcpy(adapter->fw_name, SD8797_DEFAULT_FW_NAME);
-		break;
-	case SDIO_DEVICE_ID_MARVELL_8787:
-	default:
-		strcpy(adapter->fw_name, SD8787_DEFAULT_FW_NAME);
-		break;
-	}
+	strcpy(adapter->fw_name, card->firmware);
 
 	return 0;
 
@@ -1626,6 +1642,7 @@ disable_func:
 static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
 {
 	struct sdio_mmc_card *card = adapter->card;
+	const struct mwifiex_sdio_card_reg *reg = card->reg;
 	int ret;
 	u32 sdio_ireg;
 
@@ -1645,27 +1662,27 @@ static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
 	/* Initialize SDIO variables in card */
 	card->mp_rd_bitmap = 0;
 	card->mp_wr_bitmap = 0;
-	card->curr_rd_port = 1;
-	card->curr_wr_port = 1;
+	card->curr_rd_port = reg->start_rd_port;
+	card->curr_wr_port = reg->start_wr_port;
 
-	card->mp_data_port_mask = DATA_PORT_MASK;
+	card->mp_data_port_mask = reg->data_port_mask;
 
 	card->mpa_tx.buf_len = 0;
 	card->mpa_tx.pkt_cnt = 0;
 	card->mpa_tx.start_port = 0;
 
 	card->mpa_tx.enabled = 1;
-	card->mpa_tx.pkt_aggr_limit = SDIO_MP_AGGR_DEF_PKT_LIMIT;
+	card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit;
 
 	card->mpa_rx.buf_len = 0;
 	card->mpa_rx.pkt_cnt = 0;
 	card->mpa_rx.start_port = 0;
 
 	card->mpa_rx.enabled = 1;
-	card->mpa_rx.pkt_aggr_limit = SDIO_MP_AGGR_DEF_PKT_LIMIT;
+	card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit;
 
 	/* Allocate buffers for SDIO MP-A */
-	card->mp_regs = kzalloc(MAX_MP_REGS, GFP_KERNEL);
+	card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL);
 	if (!card->mp_regs)
 		return -ENOMEM;
 
@@ -1716,16 +1733,17 @@ static void
 mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
 {
 	struct sdio_mmc_card *card = adapter->card;
+	const struct mwifiex_sdio_card_reg *reg = card->reg;
 	int i;
 
 	card->mp_end_port = port;
 
-	card->mp_data_port_mask = DATA_PORT_MASK;
+	card->mp_data_port_mask = reg->data_port_mask;
 
-	for (i = 1; i <= MAX_PORT - card->mp_end_port; i++)
-		card->mp_data_port_mask &= ~(1 << (MAX_PORT - i));
+	for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
+		card->mp_data_port_mask &= ~(1 << (card->max_ports - i));
 
-	card->curr_wr_port = 1;
+	card->curr_wr_port = reg->start_wr_port;
 
 	dev_dbg(adapter->dev, "cmd: mp_end_port %d, data port mask 0x%x\n",
 		port, card->mp_data_port_mask);
diff --git a/drivers/net/wireless/mwifiex/sdio.h b/drivers/net/wireless/mwifiex/sdio.h
index 6588069..0d931f7 100644
--- a/drivers/net/wireless/mwifiex/sdio.h
+++ b/drivers/net/wireless/mwifiex/sdio.h
@@ -37,12 +37,6 @@
 #define BYTE_MODE	0
 
 #define REG_PORT			0
-#define RD_BITMAP_L			0x04
-#define RD_BITMAP_U			0x05
-#define WR_BITMAP_L			0x06
-#define WR_BITMAP_U			0x07
-#define RD_LEN_P0_L			0x08
-#define RD_LEN_P0_U			0x09
 
 #define MWIFIEX_SDIO_IO_PORT_MASK		0xfffff
 
@@ -50,12 +44,8 @@
 
 #define CTRL_PORT			0
 #define CTRL_PORT_MASK			0x0001
-#define DATA_PORT_MASK			0xfffe
 
-#define MAX_MP_REGS			64
-#define MAX_PORT			16
-
-#define SDIO_MP_AGGR_DEF_PKT_LIMIT	8
+#define SDIO_MP_AGGR_DEF_PKT_LIMIT		8
 
 #define SDIO_MP_TX_AGGR_DEF_BUF_SIZE        (8192)	/* 8K */
 
@@ -90,8 +80,6 @@
 #define UP_LD_HOST_INT_MASK		(0x1U)
 /* Host Control Registers : Download host interrupt mask */
 #define DN_LD_HOST_INT_MASK		(0x2U)
-/* Enable Host interrupt mask */
-#define HOST_INT_ENABLE	(UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK)
 /* Disable Host interrupt mask */
 #define	HOST_INT_DISABLE		0xff
 
@@ -106,7 +94,6 @@
 #define HOST_INT_RSR_REG		0x01
 /* Host Control Registers : Upload host interrupt RSR */
 #define UP_LD_HOST_INT_RSR		(0x1U)
-#define SDIO_INT_MASK			0x3F
 
 /* Host Control Registers : Host interrupt status */
 #define HOST_INT_STATUS_REG		0x28
@@ -117,8 +104,6 @@
 /* Host Control Registers : Download restart */
 #define DN_LD_RESTART                   (0x1U << 0)
 
-/* Card Control Registers : Card status register */
-#define CARD_STATUS_REG                 0x30
 /* Card Control Registers : Card I/O ready */
 #define CARD_IO_READY                   (0x1U << 3)
 /* Card Control Registers : CIS card ready */
@@ -153,20 +138,9 @@
 /* Card Control Registers : Power down RSR */
 #define POWER_DOWN_RSR                  (0x1U << 3)
 
-/* Card Control Registers : Miscellaneous Configuration Register */
-#define CARD_MISC_CFG_REG               0x6C
-
-/* Host F1 read base 0 */
-#define HOST_F1_RD_BASE_0		0x0040
-/* Host F1 read base 1 */
-#define HOST_F1_RD_BASE_1		0x0041
 /* Host F1 card ready */
 #define HOST_F1_CARD_RDY		0x0020
 
-/* Firmware status 0 register */
-#define CARD_FW_STATUS0_REG		0x60
-/* Firmware status 1 register */
-#define CARD_FW_STATUS1_REG		0x61
 /* Rx length register */
 #define CARD_RX_LEN_REG			0x62
 /* Rx unit register */
@@ -192,7 +166,8 @@
 	if (a->mpa_tx.start_port <= port)				\
 		a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt));		\
 	else								\
-		a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt+1+(MAX_PORT -	\
+		a->mpa_tx.ports |= (1<<(a->mpa_tx.pkt_cnt+1+		\
+						(a->max_ports -	\
 						a->mp_end_port)));	\
 	a->mpa_tx.pkt_cnt++;						\
 } while (0)
@@ -203,9 +178,9 @@
 
 /* SDIO Tx aggregation port limit ? */
 #define MP_TX_AGGR_PORT_LIMIT_REACHED(a) ((a->curr_wr_port <		\
-			a->mpa_tx.start_port) && (((MAX_PORT -		\
+			a->mpa_tx.start_port) && (((a->max_ports -\
 			a->mpa_tx.start_port) + a->curr_wr_port) >=	\
-				SDIO_MP_AGGR_DEF_PKT_LIMIT))
+				a->mp_agg_pkt_limit))
 
 /* Reset SDIO Tx aggregation buffer parameters */
 #define MP_TX_AGGR_BUF_RESET(a) do {					\
@@ -221,9 +196,9 @@
 
 /* SDIO Tx aggregation port limit ? */
 #define MP_RX_AGGR_PORT_LIMIT_REACHED(a) ((a->curr_rd_port <		\
-			a->mpa_rx.start_port) && (((MAX_PORT -		\
+			a->mpa_rx.start_port) && (((a->max_ports -\
 			a->mpa_rx.start_port) + a->curr_rd_port) >=	\
-			SDIO_MP_AGGR_DEF_PKT_LIMIT))
+			a->mp_agg_pkt_limit))
 
 /* SDIO Rx aggregation in progress ? */
 #define MP_RX_AGGR_IN_PROGRESS(a) (a->mpa_rx.pkt_cnt > 0)
@@ -286,10 +261,36 @@ struct mwifiex_sdio_mpa_rx {
 int mwifiex_bus_register(void);
 void mwifiex_bus_unregister(void);
 
+struct mwifiex_sdio_card_reg {
+	u8 start_rd_port;
+	u8 start_wr_port;
+	u8 base_0_reg;
+	u8 base_1_reg;
+	u8 poll_reg;
+	u8 host_int_enable;
+	u8 status_reg_0;
+	u8 status_reg_1;
+	u8 sdio_int_mask;
+	u32 data_port_mask;
+	u8 max_mp_regs;
+	u8 rd_bitmap_l;
+	u8 rd_bitmap_u;
+	u8 wr_bitmap_l;
+	u8 wr_bitmap_u;
+	u8 rd_len_p0_l;
+	u8 rd_len_p0_u;
+	u8 card_misc_cfg_reg;
+};
+
 struct sdio_mmc_card {
 	struct sdio_func *func;
 	struct mwifiex_adapter *adapter;
 
+	const char *firmware;
+	const struct mwifiex_sdio_card_reg *reg;
+	u8 max_ports;
+	u8 mp_agg_pkt_limit;
+
 	u32 mp_rd_bitmap;
 	u32 mp_wr_bitmap;
 
@@ -305,6 +306,55 @@ struct sdio_mmc_card {
 	struct mwifiex_sdio_mpa_rx mpa_rx;
 };
 
+struct mwifiex_sdio_device {
+	const char *firmware;
+	const struct mwifiex_sdio_card_reg *reg;
+	u8 max_ports;
+	u8 mp_agg_pkt_limit;
+};
+
+static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = {
+	.start_rd_port = 1,
+	.start_wr_port = 1,
+	.base_0_reg = 0x0040,
+	.base_1_reg = 0x0041,
+	.poll_reg = 0x30,
+	.host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK,
+	.status_reg_0 = 0x60,
+	.status_reg_1 = 0x61,
+	.sdio_int_mask = 0x3f,
+	.data_port_mask = 0x0000fffe,
+	.max_mp_regs = 64,
+	.rd_bitmap_l = 0x04,
+	.rd_bitmap_u = 0x05,
+	.wr_bitmap_l = 0x06,
+	.wr_bitmap_u = 0x07,
+	.rd_len_p0_l = 0x08,
+	.rd_len_p0_u = 0x09,
+	.card_misc_cfg_reg = 0x6c,
+};
+
+static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = {
+	.firmware = SD8786_DEFAULT_FW_NAME,
+	.reg = &mwifiex_reg_sd87xx,
+	.max_ports = 16,
+	.mp_agg_pkt_limit = 8,
+};
+
+static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = {
+	.firmware = SD8787_DEFAULT_FW_NAME,
+	.reg = &mwifiex_reg_sd87xx,
+	.max_ports = 16,
+	.mp_agg_pkt_limit = 8,
+};
+
+static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = {
+	.firmware = SD8797_DEFAULT_FW_NAME,
+	.reg = &mwifiex_reg_sd87xx,
+	.max_ports = 16,
+	.mp_agg_pkt_limit = 8,
+};
+
 /*
  * .cmdrsp_complete handler
  */
-- 
cgit v0.10.2


From ab93d4ff3693ece926ae73f71a5cc8c37579bc6a Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:53:42 -0700
Subject: mwifiex: replace unnecessary u32 variables with u8 in sdio.c

Some u32 variables in sdio.c are used to store/pass u8 values.
Replace them with u8 variables.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 022e9fd..e4357a6 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -294,13 +294,13 @@ static struct sdio_driver mwifiex_sdio = {
  * This function writes data into SDIO card register.
  */
 static int
-mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u32 data)
+mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data)
 {
 	struct sdio_mmc_card *card = adapter->card;
 	int ret = -1;
 
 	sdio_claim_host(card->func);
-	sdio_writeb(card->func, (u8) data, reg, &ret);
+	sdio_writeb(card->func, data, reg, &ret);
 	sdio_release_host(card->func);
 
 	return ret;
@@ -310,7 +310,7 @@ mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u32 data)
  * This function reads data from SDIO card register.
  */
 static int
-mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u32 *data)
+mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data)
 {
 	struct sdio_mmc_card *card = adapter->card;
 	int ret = -1;
@@ -421,7 +421,7 @@ static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
  */
 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
 {
-	u32 reg;
+	u8 reg;
 	struct sdio_mmc_card *card = adapter->card;
 
 	adapter->ioport = 0;
@@ -580,7 +580,7 @@ mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
 {
 	struct sdio_mmc_card *card = adapter->card;
 	u32 tries;
-	u32 cs;
+	u8 cs;
 
 	for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
 		if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs))
@@ -604,7 +604,7 @@ mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
 {
 	struct sdio_mmc_card *card = adapter->card;
 	const struct mwifiex_sdio_card_reg *reg = card->reg;
-	u32 fws0, fws1;
+	u8 fws0, fws1;
 
 	if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0))
 		return -1;
@@ -625,14 +625,14 @@ mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
  */
 static int mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
 {
-	u32 host_int_mask;
+	u8 host_int_mask, host_int_disable = HOST_INT_DISABLE;
 
 	/* Read back the host_int_mask register */
 	if (mwifiex_read_reg(adapter, HOST_INT_MASK_REG, &host_int_mask))
 		return -1;
 
 	/* Update with the mask and write back to the register */
-	host_int_mask &= ~HOST_INT_DISABLE;
+	host_int_mask &= ~host_int_disable;
 
 	if (mwifiex_write_reg(adapter, HOST_INT_MASK_REG, host_int_mask)) {
 		dev_err(adapter->dev, "disable host interrupt failed\n");
@@ -712,7 +712,7 @@ static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
 	u8 *firmware = fw->fw_buf;
 	u32 firmware_len = fw->fw_len;
 	u32 offset = 0;
-	u32 base0, base1;
+	u8 base0, base1;
 	u8 *fwbuf;
 	u16 len = 0;
 	u32 txlen, tx_blocks = 0, tries;
@@ -854,7 +854,7 @@ static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
 	int ret = 0;
 	u16 firmware_stat;
 	u32 tries;
-	u32 winner_status;
+	u8 winner_status;
 
 	/* Wait for firmware initialization event */
 	for (tries = 0; tries < poll_num; tries++) {
@@ -889,7 +889,7 @@ static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
 static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
 {
 	struct sdio_mmc_card *card = adapter->card;
-	u32 sdio_ireg;
+	u8 sdio_ireg;
 	unsigned long flags;
 
 	if (mwifiex_read_data_sync(adapter, card->mp_regs,
@@ -1284,7 +1284,7 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 
 			if (mwifiex_sdio_card_to_host_mp_aggr(adapter, skb,
 							      port)) {
-				u32 cr = 0;
+				u8 cr = 0;
 
 				dev_err(adapter->dev, "card_to_host_mpa failed:"
 					" int status=%#x\n", sdio_ireg);
@@ -1644,7 +1644,7 @@ static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
 	struct sdio_mmc_card *card = adapter->card;
 	const struct mwifiex_sdio_card_reg *reg = card->reg;
 	int ret;
-	u32 sdio_ireg;
+	u8 sdio_ireg;
 
 	/*
 	 * Read the HOST_INT_STATUS_REG for ACK the first interrupt got
-- 
cgit v0.10.2


From e6a520304f6562ee3f57b0ba01e49a458c5eeda2 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:53:56 -0700
Subject: mwifiex: code rearrangement in mwifiex_get_rd_port()

Get rid of 'if else' usage by returning in 'if' block.
This improves readability by removing indentations.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index e4357a6..a18a5b4 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -512,22 +512,23 @@ static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
 		*port = CTRL_PORT;
 		dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%08x\n",
 			*port, card->mp_rd_bitmap);
-	} else {
-		if (card->mp_rd_bitmap & (1 << card->curr_rd_port)) {
-			card->mp_rd_bitmap &= (u32)
-						(~(1 << card->curr_rd_port));
-			*port = card->curr_rd_port;
+		return 0;
+	}
 
-			if (++card->curr_rd_port == card->max_ports)
-				card->curr_rd_port = reg->start_rd_port;
-		} else {
-			return -1;
-		}
+	if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port)))
+		return -1;
+
+	/* We are now handling the SDIO data ports */
+	card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port));
+	*port = card->curr_rd_port;
+
+	if (++card->curr_rd_port == card->max_ports)
+		card->curr_rd_port = reg->start_rd_port;
+
+	dev_dbg(adapter->dev,
+		"data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
+		*port, rd_bitmap, card->mp_rd_bitmap);
 
-		dev_dbg(adapter->dev,
-			"data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
-			*port, rd_bitmap, card->mp_rd_bitmap);
-	}
 	return 0;
 }
 
-- 
cgit v0.10.2


From 0fc0d43b979cecda24a30b6af1185984a654521a Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:54:23 -0700
Subject: mwifiex: do port calculations separately

This patch rearranges the code for better readability

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index a18a5b4..99a508b 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -539,7 +539,7 @@ static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
  * increased (provided it does not reach the maximum limit, in which
  * case it is reset to 1)
  */
-static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u8 *port)
+static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port)
 {
 	struct sdio_mmc_card *card = adapter->card;
 	u32 wr_bitmap = card->mp_wr_bitmap;
@@ -1027,7 +1027,7 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 	s32 f_aggr_cur = 0;
 	struct sk_buff *skb_deaggr;
 	u32 pind;
-	u32 pkt_len, pkt_type = 0;
+	u32 pkt_len, pkt_type, mport;
 	u8 *curr_ptr;
 	u32 rx_len = skb->len;
 
@@ -1100,11 +1100,11 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 		dev_dbg(adapter->dev, "info: do_rx_aggr: num of packets: %d\n",
 			card->mpa_rx.pkt_cnt);
 
+		mport = (adapter->ioport | 0x1000 |
+			 (card->mpa_rx.ports << 4)) + card->mpa_rx.start_port;
+
 		if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
-					   card->mpa_rx.buf_len,
-					   (adapter->ioport | 0x1000 |
-					    (card->mpa_rx.ports << 4)) +
-					   card->mpa_rx.start_port, 1))
+					   card->mpa_rx.buf_len, mport, 1))
 			goto error;
 
 		curr_ptr = card->mpa_rx.buf;
@@ -1333,7 +1333,7 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
  * and return.
  */
 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
-					u8 *payload, u32 pkt_len, u8 port,
+					u8 *payload, u32 pkt_len, u32 port,
 					u32 next_pkt_len)
 {
 	struct sdio_mmc_card *card = adapter->card;
@@ -1342,6 +1342,7 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 	s32 f_send_cur_buf = 0;
 	s32 f_precopy_cur_buf = 0;
 	s32 f_postcopy_cur_buf = 0;
+	u32 mport;
 
 	if ((!card->mpa_tx.enabled) || (port == CTRL_PORT)) {
 		dev_dbg(adapter->dev, "info: %s: tx aggregation disabled\n",
@@ -1418,11 +1419,10 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 		dev_dbg(adapter->dev, "data: %s: send aggr buffer: %d %d\n",
 			__func__,
 				card->mpa_tx.start_port, card->mpa_tx.ports);
+		mport = (adapter->ioport | 0x1000 |
+			 (card->mpa_tx.ports << 4)) + card->mpa_tx.start_port;
 		ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
-						 card->mpa_tx.buf_len,
-						 (adapter->ioport | 0x1000 |
-						 (card->mpa_tx.ports << 4)) +
-						  card->mpa_tx.start_port);
+						 card->mpa_tx.buf_len, mport);
 
 		MP_TX_AGGR_BUF_RESET(card);
 	}
@@ -1462,7 +1462,7 @@ static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
 	int ret;
 	u32 buf_block_len;
 	u32 blk_size;
-	u8 port = CTRL_PORT;
+	u32 port = CTRL_PORT;
 	u8 *payload = (u8 *)skb->data;
 	u32 pkt_len = skb->len;
 
-- 
cgit v0.10.2


From 248eb4c6533a1409ec7a1eab9359a1befd8bb9c6 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:54:34 -0700
Subject: mwifiex: define a macro for MPA base address

As Multiple-Port Aggregation base address value is fixed, we can
have a macro for it.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 99a508b..1892e88 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -1100,7 +1100,7 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 		dev_dbg(adapter->dev, "info: do_rx_aggr: num of packets: %d\n",
 			card->mpa_rx.pkt_cnt);
 
-		mport = (adapter->ioport | 0x1000 |
+		mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
 			 (card->mpa_rx.ports << 4)) + card->mpa_rx.start_port;
 
 		if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
@@ -1419,7 +1419,7 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 		dev_dbg(adapter->dev, "data: %s: send aggr buffer: %d %d\n",
 			__func__,
 				card->mpa_tx.start_port, card->mpa_tx.ports);
-		mport = (adapter->ioport | 0x1000 |
+		mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
 			 (card->mpa_tx.ports << 4)) + card->mpa_tx.start_port;
 		ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
 						 card->mpa_tx.buf_len, mport);
diff --git a/drivers/net/wireless/mwifiex/sdio.h b/drivers/net/wireless/mwifiex/sdio.h
index 0d931f7..e4016d2 100644
--- a/drivers/net/wireless/mwifiex/sdio.h
+++ b/drivers/net/wireless/mwifiex/sdio.h
@@ -42,6 +42,7 @@
 
 #define MWIFIEX_SDIO_BYTE_MODE_MASK	0x80000000
 
+#define SDIO_MPA_ADDR_BASE		0x1000
 #define CTRL_PORT			0
 #define CTRL_PORT_MASK			0x0001
 
-- 
cgit v0.10.2


From dc468e3d420d9042d18f240196dc72ba0306ee89 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:54:42 -0700
Subject: mwifiex: remove unnecessary macros in sdio.h

They are not used in the code.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.h b/drivers/net/wireless/mwifiex/sdio.h
index e4016d2..339608b 100644
--- a/drivers/net/wireless/mwifiex/sdio.h
+++ b/drivers/net/wireless/mwifiex/sdio.h
@@ -66,14 +66,8 @@
 
 /* Host Control Registers : Configuration */
 #define CONFIGURATION_REG		0x00
-/* Host Control Registers : Host without Command 53 finish host*/
-#define HOST_TO_CARD_EVENT       (0x1U << 3)
-/* Host Control Registers : Host without Command 53 finish host */
-#define HOST_WO_CMD53_FINISH_HOST	(0x1U << 2)
 /* Host Control Registers : Host power up */
 #define HOST_POWER_UP			(0x1U << 1)
-/* Host Control Registers : Host power down */
-#define HOST_POWER_DOWN			(0x1U << 0)
 
 /* Host Control Registers : Host interrupt mask */
 #define HOST_INT_MASK_REG		0x02
@@ -93,60 +87,15 @@
 
 /* Host Control Registers : Host interrupt RSR */
 #define HOST_INT_RSR_REG		0x01
-/* Host Control Registers : Upload host interrupt RSR */
-#define UP_LD_HOST_INT_RSR		(0x1U)
 
 /* Host Control Registers : Host interrupt status */
 #define HOST_INT_STATUS_REG		0x28
-/* Host Control Registers : Upload CRC error */
-#define UP_LD_CRC_ERR			(0x1U << 2)
-/* Host Control Registers : Upload restart */
-#define UP_LD_RESTART                   (0x1U << 1)
-/* Host Control Registers : Download restart */
-#define DN_LD_RESTART                   (0x1U << 0)
 
 /* Card Control Registers : Card I/O ready */
 #define CARD_IO_READY                   (0x1U << 3)
-/* Card Control Registers : CIS card ready */
-#define CIS_CARD_RDY                    (0x1U << 2)
-/* Card Control Registers : Upload card ready */
-#define UP_LD_CARD_RDY                  (0x1U << 1)
 /* Card Control Registers : Download card ready */
 #define DN_LD_CARD_RDY                  (0x1U << 0)
 
-/* Card Control Registers : Host interrupt mask register */
-#define HOST_INTERRUPT_MASK_REG         0x34
-/* Card Control Registers : Host power interrupt mask */
-#define HOST_POWER_INT_MASK             (0x1U << 3)
-/* Card Control Registers : Abort card interrupt mask */
-#define ABORT_CARD_INT_MASK             (0x1U << 2)
-/* Card Control Registers : Upload card interrupt mask */
-#define UP_LD_CARD_INT_MASK             (0x1U << 1)
-/* Card Control Registers : Download card interrupt mask */
-#define DN_LD_CARD_INT_MASK             (0x1U << 0)
-
-/* Card Control Registers : Card interrupt status register */
-#define CARD_INTERRUPT_STATUS_REG       0x38
-/* Card Control Registers : Power up interrupt */
-#define POWER_UP_INT                    (0x1U << 4)
-/* Card Control Registers : Power down interrupt */
-#define POWER_DOWN_INT                  (0x1U << 3)
-
-/* Card Control Registers : Card interrupt RSR register */
-#define CARD_INTERRUPT_RSR_REG          0x3c
-/* Card Control Registers : Power up RSR */
-#define POWER_UP_RSR                    (0x1U << 4)
-/* Card Control Registers : Power down RSR */
-#define POWER_DOWN_RSR                  (0x1U << 3)
-
-/* Host F1 card ready */
-#define HOST_F1_CARD_RDY		0x0020
-
-/* Rx length register */
-#define CARD_RX_LEN_REG			0x62
-/* Rx unit register */
-#define CARD_RX_UNIT_REG		0x63
-
 /* Max retry number of CMD53 write */
 #define MAX_WRITE_IOMEM_RETRY		2
 
-- 
cgit v0.10.2


From c23b7c8f719317983c59b01873b51394fde26907 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 17 May 2013 17:54:51 -0700
Subject: mwifiex: code rearrangement in multiport aggregation path

There are some macros defined for multiport aggregation
calculations. As we may need to add some more code to
accomodate new chipsets, we will change them to inline
functions. Also, use dynamic allocation for Rx buffer array.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 1892e88..4b196dc 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -1084,10 +1084,10 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 	if (f_aggr_cur) {
 		dev_dbg(adapter->dev, "info: current packet aggregation\n");
 		/* Curr pkt can be aggregated */
-		MP_RX_AGGR_SETUP(card, skb, port);
+		mp_rx_aggr_setup(card, skb, port);
 
 		if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) ||
-		    MP_RX_AGGR_PORT_LIMIT_REACHED(card)) {
+		    mp_rx_aggr_port_limit_reached(card)) {
 			dev_dbg(adapter->dev, "info: %s: aggregated packet "
 				"limit reached\n", __func__);
 			/* No more pkts allowed in Aggr buf, rx it */
@@ -1358,7 +1358,7 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 			__func__);
 
 		if (MP_TX_AGGR_IN_PROGRESS(card)) {
-			if (!MP_TX_AGGR_PORT_LIMIT_REACHED(card) &&
+			if (!mp_tx_aggr_port_limit_reached(card) &&
 			    MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) {
 				f_precopy_cur_buf = 1;
 
@@ -1371,7 +1371,7 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 				/* No room in Aggr buf, send it */
 				f_send_aggr_buf = 1;
 
-				if (MP_TX_AGGR_PORT_LIMIT_REACHED(card) ||
+				if (mp_tx_aggr_port_limit_reached(card) ||
 				    !(card->mp_wr_bitmap &
 				      (1 << card->curr_wr_port)))
 					f_send_cur_buf = 1;
@@ -1410,7 +1410,7 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 		MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
 
 		if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) ||
-		    MP_TX_AGGR_PORT_LIMIT_REACHED(card))
+		    mp_tx_aggr_port_limit_reached(card))
 			/* No more pkts allowed in Aggr buf, send it */
 			f_send_aggr_buf = 1;
 	}
@@ -1687,6 +1687,11 @@ static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
 	if (!card->mp_regs)
 		return -ENOMEM;
 
+	/* Allocate skb pointer buffers */
+	card->mpa_rx.skb_arr = kzalloc((sizeof(void *)) *
+				       card->mp_agg_pkt_limit, GFP_KERNEL);
+	card->mpa_rx.len_arr = kzalloc(sizeof(*card->mpa_rx.len_arr) *
+				       card->mp_agg_pkt_limit, GFP_KERNEL);
 	ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
 					     SDIO_MP_TX_AGGR_DEF_BUF_SIZE,
 					     SDIO_MP_RX_AGGR_DEF_BUF_SIZE);
@@ -1723,6 +1728,8 @@ static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
 	struct sdio_mmc_card *card = adapter->card;
 
 	kfree(card->mp_regs);
+	kfree(card->mpa_rx.skb_arr);
+	kfree(card->mpa_rx.len_arr);
 	kfree(card->mpa_tx.buf);
 	kfree(card->mpa_rx.buf);
 }
diff --git a/drivers/net/wireless/mwifiex/sdio.h b/drivers/net/wireless/mwifiex/sdio.h
index 339608b..597db37 100644
--- a/drivers/net/wireless/mwifiex/sdio.h
+++ b/drivers/net/wireless/mwifiex/sdio.h
@@ -46,8 +46,6 @@
 #define CTRL_PORT			0
 #define CTRL_PORT_MASK			0x0001
 
-#define SDIO_MP_AGGR_DEF_PKT_LIMIT		8
-
 #define SDIO_MP_TX_AGGR_DEF_BUF_SIZE        (8192)	/* 8K */
 
 /* Multi port RX aggregation buffer size */
@@ -126,12 +124,6 @@
 #define MP_TX_AGGR_PKT_LIMIT_REACHED(a)					\
 			(a->mpa_tx.pkt_cnt == a->mpa_tx.pkt_aggr_limit)
 
-/* SDIO Tx aggregation port limit ? */
-#define MP_TX_AGGR_PORT_LIMIT_REACHED(a) ((a->curr_wr_port <		\
-			a->mpa_tx.start_port) && (((a->max_ports -\
-			a->mpa_tx.start_port) + a->curr_wr_port) >=	\
-				a->mp_agg_pkt_limit))
-
 /* Reset SDIO Tx aggregation buffer parameters */
 #define MP_TX_AGGR_BUF_RESET(a) do {					\
 	a->mpa_tx.pkt_cnt = 0;						\
@@ -144,12 +136,6 @@
 #define MP_RX_AGGR_PKT_LIMIT_REACHED(a)					\
 			(a->mpa_rx.pkt_cnt == a->mpa_rx.pkt_aggr_limit)
 
-/* SDIO Tx aggregation port limit ? */
-#define MP_RX_AGGR_PORT_LIMIT_REACHED(a) ((a->curr_rd_port <		\
-			a->mpa_rx.start_port) && (((a->max_ports -\
-			a->mpa_rx.start_port) + a->curr_rd_port) >=	\
-			a->mp_agg_pkt_limit))
-
 /* SDIO Rx aggregation in progress ? */
 #define MP_RX_AGGR_IN_PROGRESS(a) (a->mpa_rx.pkt_cnt > 0)
 
@@ -157,20 +143,6 @@
 #define MP_RX_AGGR_BUF_HAS_ROOM(a, rx_len)				\
 			((a->mpa_rx.buf_len+rx_len) <= a->mpa_rx.buf_size)
 
-/* Prepare to copy current packet from card to SDIO Rx aggregation buffer */
-#define MP_RX_AGGR_SETUP(a, skb, port) do {				\
-	a->mpa_rx.buf_len += skb->len;					\
-	if (!a->mpa_rx.pkt_cnt)						\
-		a->mpa_rx.start_port = port;				\
-	if (a->mpa_rx.start_port <= port)				\
-		a->mpa_rx.ports |= (1<<(a->mpa_rx.pkt_cnt));		\
-	else								\
-		a->mpa_rx.ports |= (1<<(a->mpa_rx.pkt_cnt+1));		\
-	a->mpa_rx.skb_arr[a->mpa_rx.pkt_cnt] = skb;			\
-	a->mpa_rx.len_arr[a->mpa_rx.pkt_cnt] = skb->len;		\
-	a->mpa_rx.pkt_cnt++;						\
-} while (0)
-
 /* Reset SDIO Rx aggregation buffer parameters */
 #define MP_RX_AGGR_BUF_RESET(a) do {					\
 	a->mpa_rx.pkt_cnt = 0;						\
@@ -179,7 +151,6 @@
 	a->mpa_rx.start_port = 0;					\
 } while (0)
 
-
 /* data structure for SDIO MPA TX */
 struct mwifiex_sdio_mpa_tx {
 	/* multiport tx aggregation buffer pointer */
@@ -200,8 +171,8 @@ struct mwifiex_sdio_mpa_rx {
 	u32 ports;
 	u16 start_port;
 
-	struct sk_buff *skb_arr[SDIO_MP_AGGR_DEF_PKT_LIMIT];
-	u32 len_arr[SDIO_MP_AGGR_DEF_PKT_LIMIT];
+	struct sk_buff **skb_arr;
+	u32 *len_arr;
 
 	u8 enabled;
 	u32 buf_size;
@@ -325,4 +296,54 @@ static inline int mwifiex_sdio_event_complete(struct mwifiex_adapter *adapter,
 	return 0;
 }
 
+static inline bool
+mp_rx_aggr_port_limit_reached(struct sdio_mmc_card *card)
+{
+	u8 tmp;
+
+	if (card->curr_rd_port < card->mpa_rx.start_port) {
+		tmp = card->mp_agg_pkt_limit;
+
+		if (((card->max_ports - card->mpa_rx.start_port) +
+		    card->curr_rd_port) >= tmp)
+			return true;
+	}
+
+	return false;
+}
+
+static inline bool
+mp_tx_aggr_port_limit_reached(struct sdio_mmc_card *card)
+{
+	u16 tmp;
+
+	if (card->curr_wr_port < card->mpa_tx.start_port) {
+		tmp = card->mp_agg_pkt_limit;
+
+		if (((card->max_ports - card->mpa_tx.start_port) +
+		    card->curr_wr_port) >= tmp)
+			return true;
+	}
+
+	return false;
+}
+
+/* Prepare to copy current packet from card to SDIO Rx aggregation buffer */
+static inline void mp_rx_aggr_setup(struct sdio_mmc_card *card,
+				    struct sk_buff *skb, u8 port)
+{
+	card->mpa_rx.buf_len += skb->len;
+
+	if (!card->mpa_rx.pkt_cnt)
+		card->mpa_rx.start_port = port;
+
+	if (card->mpa_rx.start_port <= port)
+		card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt);
+	else
+		card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt + 1);
+
+	card->mpa_rx.skb_arr[card->mpa_rx.pkt_cnt] = skb;
+	card->mpa_rx.len_arr[card->mpa_rx.pkt_cnt] = skb->len;
+	card->mpa_rx.pkt_cnt++;
+}
 #endif /* _MWIFIEX_SDIO_H */
-- 
cgit v0.10.2


From b60186f824330cd85859f5944b9559b0f7df0b4f Mon Sep 17 00:00:00 2001
From: Yogesh Ashok Powar <yogeshp@marvell.com>
Date: Fri, 17 May 2013 17:54:58 -0700
Subject: mwifiex: add support for Marvell SD8897 chipset

Some of the key differences between SD8897 and older chipsets
are as follows:

a) sdio mpa_rx and mpa_tx ports have been increased from 16 to 32
b) Same is the case with read/write bitmap that one receives from
   mpa_reg read
c) aggregation packet count doubled from 8 to 16
d) Most of key reg addresses are changed
e) There is a separate command or control port
f) Now command rx/tx_done have new interrupts

1. 'supports_sdio_new_mode' flag is added to handle (a) and (b).
2. (c) and (d) are taken care of by filling chip specific
   information in global structurei (mwifiex_sdio_sd8897).
3. For older chipsets, port 0 was cmd port and port 1->15 were
   data port. Therefore we had CTRL_PORT_MASK to differentiate
   port type. Now these changes are under 'has_control_mask' flag.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Frank Huang <frankh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/Kconfig b/drivers/net/wireless/mwifiex/Kconfig
index 4f614aa..f7ff472 100644
--- a/drivers/net/wireless/mwifiex/Kconfig
+++ b/drivers/net/wireless/mwifiex/Kconfig
@@ -3,13 +3,13 @@ config MWIFIEX
 	depends on CFG80211
 	---help---
 	  This adds support for wireless adapters based on Marvell
-	  802.11n chipsets.
+	  802.11n/ac chipsets.
 
 	  If you choose to build it as a module, it will be called
 	  mwifiex.
 
 config MWIFIEX_SDIO
-	tristate "Marvell WiFi-Ex Driver for SD8786/SD8787/SD8797"
+	tristate "Marvell WiFi-Ex Driver for SD8786/SD8787/SD8797/SD8897"
 	depends on MWIFIEX && MMC
 	select FW_LOADER
 	---help---
diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 4b196dc..5ee5ed0 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -84,6 +84,8 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
 		card->reg = data->reg;
 		card->max_ports = data->max_ports;
 		card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
+		card->supports_sdio_new_mode = data->supports_sdio_new_mode;
+		card->has_control_mask = data->has_control_mask;
 	}
 
 	sdio_claim_host(func);
@@ -260,6 +262,8 @@ static int mwifiex_sdio_resume(struct device *dev)
 #define SDIO_DEVICE_ID_MARVELL_8787   (0x9119)
 /* Device ID for SD8797 */
 #define SDIO_DEVICE_ID_MARVELL_8797   (0x9129)
+/* Device ID for SD8897 */
+#define SDIO_DEVICE_ID_MARVELL_8897   (0x912d)
 
 /* WLAN IDs */
 static const struct sdio_device_id mwifiex_ids[] = {
@@ -269,6 +273,8 @@ static const struct sdio_device_id mwifiex_ids[] = {
 		.driver_data = (unsigned long) &mwifiex_sdio_sd8787},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797),
 		.driver_data = (unsigned long) &mwifiex_sdio_sd8797},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897),
+		.driver_data = (unsigned long) &mwifiex_sdio_sd8897},
 	{},
 };
 
@@ -412,7 +418,40 @@ static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
 }
 
 /*
- * This function initializes the IO ports.
+ * This function is used to initialize IO ports for the
+ * chipsets supporting SDIO new mode eg SD8897.
+ */
+static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter)
+{
+	u8 reg;
+
+	adapter->ioport = MEM_PORT;
+
+	/* enable sdio new mode */
+	if (mwifiex_read_reg(adapter, CARD_CONFIG_2_1_REG, &reg))
+		return -1;
+	if (mwifiex_write_reg(adapter, CARD_CONFIG_2_1_REG,
+			      reg | CMD53_NEW_MODE))
+		return -1;
+
+	/* Configure cmd port and enable reading rx length from the register */
+	if (mwifiex_read_reg(adapter, CMD_CONFIG_0, &reg))
+		return -1;
+	if (mwifiex_write_reg(adapter, CMD_CONFIG_0, reg | CMD_PORT_RD_LEN_EN))
+		return -1;
+
+	/* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
+	 * completed
+	 */
+	if (mwifiex_read_reg(adapter, CMD_CONFIG_1, &reg))
+		return -1;
+	if (mwifiex_write_reg(adapter, CMD_CONFIG_1, reg | CMD_PORT_AUTO_EN))
+		return -1;
+
+	return 0;
+}
+
+/* This function initializes the IO ports.
  *
  * The following operations are performed -
  *      - Read the IO ports (0, 1 and 2)
@@ -426,6 +465,12 @@ static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
 
 	adapter->ioport = 0;
 
+	if (card->supports_sdio_new_mode) {
+		if (mwifiex_init_sdio_new_mode(adapter))
+			return -1;
+		goto cont;
+	}
+
 	/* Read the IO port */
 	if (!mwifiex_read_reg(adapter, IO_PORT_0_REG, &reg))
 		adapter->ioport |= (reg & 0xff);
@@ -441,7 +486,7 @@ static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
 		adapter->ioport |= ((reg & 0xff) << 16);
 	else
 		return -1;
-
+cont:
 	pr_debug("info: SDIO FUNC1 IO port: %#x\n", adapter->ioport);
 
 	/* Set Host interrupt reset to read to clear */
@@ -504,10 +549,16 @@ static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
 
 	dev_dbg(adapter->dev, "data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
 
-	if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
-		return -1;
+	if (card->supports_sdio_new_mode) {
+		if (!(rd_bitmap & reg->data_port_mask))
+			return -1;
+	} else {
+		if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
+			return -1;
+	}
 
-	if (card->mp_rd_bitmap & CTRL_PORT_MASK) {
+	if ((card->has_control_mask) &&
+	    (card->mp_rd_bitmap & CTRL_PORT_MASK)) {
 		card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK);
 		*port = CTRL_PORT;
 		dev_dbg(adapter->dev, "data: port=%d mp_rd_bitmap=0x%08x\n",
@@ -542,24 +593,34 @@ static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
 static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port)
 {
 	struct sdio_mmc_card *card = adapter->card;
+	const struct mwifiex_sdio_card_reg *reg = card->reg;
 	u32 wr_bitmap = card->mp_wr_bitmap;
 
 	dev_dbg(adapter->dev, "data: mp_wr_bitmap=0x%08x\n", wr_bitmap);
 
-	if (!(wr_bitmap & card->mp_data_port_mask))
+	if (card->supports_sdio_new_mode &&
+	    !(wr_bitmap & reg->data_port_mask)) {
+		adapter->data_sent = true;
+		return -EBUSY;
+	} else if (!card->supports_sdio_new_mode &&
+		   !(wr_bitmap & card->mp_data_port_mask)) {
 		return -1;
+	}
 
 	if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
 		card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
 		*port = card->curr_wr_port;
-		if (++card->curr_wr_port == card->mp_end_port)
-			card->curr_wr_port = card->reg->start_wr_port;
+		if (((card->supports_sdio_new_mode) &&
+		     (++card->curr_wr_port == card->max_ports)) ||
+		    ((!card->supports_sdio_new_mode) &&
+		     (++card->curr_wr_port == card->mp_end_port)))
+			card->curr_wr_port = reg->start_wr_port;
 	} else {
 		adapter->data_sent = true;
 		return -EBUSY;
 	}
 
-	if (*port == CTRL_PORT) {
+	if ((card->has_control_mask) && (*port == CTRL_PORT)) {
 		dev_err(adapter->dev,
 			"invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
 			*port, card->curr_wr_port, wr_bitmap,
@@ -904,6 +965,9 @@ static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
 	if (sdio_ireg) {
 		/*
 		 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
+		 * For SDIO new mode CMD port interrupts
+		 *	DN_LD_CMD_PORT_HOST_INT_STATUS and/or
+		 *	UP_LD_CMD_PORT_HOST_INT_STATUS
 		 * Clear the interrupt status register
 		 */
 		dev_dbg(adapter->dev, "int: sdio_ireg = %#x\n", sdio_ireg);
@@ -1031,7 +1095,7 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 	u8 *curr_ptr;
 	u32 rx_len = skb->len;
 
-	if (port == CTRL_PORT) {
+	if ((card->has_control_mask) && (port == CTRL_PORT)) {
 		/* Read the command Resp without aggr */
 		dev_dbg(adapter->dev, "info: %s: no aggregation for cmd "
 			"response\n", __func__);
@@ -1048,7 +1112,10 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 		goto rx_curr_single;
 	}
 
-	if (card->mp_rd_bitmap & (~((u32) CTRL_PORT_MASK))) {
+	if ((!card->has_control_mask && (card->mp_rd_bitmap &
+					 card->reg->data_port_mask)) ||
+	    (card->has_control_mask && (card->mp_rd_bitmap &
+					(~((u32) CTRL_PORT_MASK))))) {
 		/* Some more data RX pending */
 		dev_dbg(adapter->dev, "info: %s: not last packet\n", __func__);
 
@@ -1100,8 +1167,25 @@ static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
 		dev_dbg(adapter->dev, "info: do_rx_aggr: num of packets: %d\n",
 			card->mpa_rx.pkt_cnt);
 
-		mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
-			 (card->mpa_rx.ports << 4)) + card->mpa_rx.start_port;
+		if (card->supports_sdio_new_mode) {
+			int i;
+			u32 port_count;
+
+			for (i = 0, port_count = 0; i < card->max_ports; i++)
+				if (card->mpa_rx.ports & BIT(i))
+					port_count++;
+
+			/* Reading data from "start_port + 0" to "start_port +
+			 * port_count -1", so decrease the count by 1
+			 */
+			port_count--;
+			mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
+				 (port_count << 8)) + card->mpa_rx.start_port;
+		} else {
+			mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
+				 (card->mpa_rx.ports << 4)) +
+				 card->mpa_rx.start_port;
+		}
 
 		if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
 					   card->mpa_rx.buf_len, mport, 1))
@@ -1200,6 +1284,8 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 	u32 rx_blocks;
 	u16 rx_len;
 	unsigned long flags;
+	u32 bitmap;
+	u8 cr;
 
 	spin_lock_irqsave(&adapter->int_lock, flags);
 	sdio_ireg = adapter->int_status;
@@ -1209,12 +1295,60 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 	if (!sdio_ireg)
 		return ret;
 
+	/* Following interrupt is only for SDIO new mode */
+	if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent)
+		adapter->cmd_sent = false;
+
+	/* Following interrupt is only for SDIO new mode */
+	if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) {
+		u32 pkt_type;
+
+		/* read the len of control packet */
+		rx_len = card->mp_regs[CMD_RD_LEN_1] << 8;
+		rx_len |= (u16) card->mp_regs[CMD_RD_LEN_0];
+		rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE);
+		if (rx_len <= INTF_HEADER_LEN ||
+		    (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
+		     MWIFIEX_RX_DATA_BUF_SIZE)
+			return -1;
+		rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
+
+		skb = dev_alloc_skb(rx_len);
+		if (!skb)
+			return -1;
+
+		skb_put(skb, rx_len);
+
+		if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data,
+					      skb->len, adapter->ioport |
+							CMD_PORT_SLCT)) {
+			dev_err(adapter->dev,
+				"%s: failed to card_to_host", __func__);
+			dev_kfree_skb_any(skb);
+			goto term_cmd;
+		}
+
+		if ((pkt_type != MWIFIEX_TYPE_CMD) &&
+		    (pkt_type != MWIFIEX_TYPE_EVENT))
+			dev_err(adapter->dev,
+				"%s:Received wrong packet on cmd port",
+				__func__);
+
+		mwifiex_decode_rx_packet(adapter, skb, pkt_type);
+	}
+
 	if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
-		card->mp_wr_bitmap =
-			((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
-		card->mp_wr_bitmap |=
-			(u32) card->mp_regs[reg->wr_bitmap_l];
-		dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%08x\n",
+		bitmap = (u32) card->mp_regs[reg->wr_bitmap_l];
+		bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
+		if (card->supports_sdio_new_mode) {
+			bitmap |=
+				((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16;
+			bitmap |=
+				((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24;
+		}
+		card->mp_wr_bitmap = bitmap;
+
+		dev_dbg(adapter->dev, "int: DNLD: wr_bitmap=0x%x\n",
 			card->mp_wr_bitmap);
 		if (adapter->data_sent &&
 		    (card->mp_wr_bitmap & card->mp_data_port_mask)) {
@@ -1227,7 +1361,7 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 	/* As firmware will not generate download ready interrupt if the port
 	   updated is command port only, cmd_sent should be done for any SDIO
 	   interrupt. */
-	if (adapter->cmd_sent) {
+	if (card->has_control_mask && adapter->cmd_sent) {
 		/* Check if firmware has attach buffer at command port and
 		   update just that in wr_bit_map. */
 		card->mp_wr_bitmap |=
@@ -1239,10 +1373,16 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 	dev_dbg(adapter->dev, "info: cmd_sent=%d data_sent=%d\n",
 		adapter->cmd_sent, adapter->data_sent);
 	if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
-		card->mp_rd_bitmap =
-			((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
-		card->mp_rd_bitmap |= (u32) card->mp_regs[reg->rd_bitmap_l];
-		dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%08x\n",
+		bitmap = (u32) card->mp_regs[reg->rd_bitmap_l];
+		bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
+		if (card->supports_sdio_new_mode) {
+			bitmap |=
+				((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16;
+			bitmap |=
+				((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24;
+		}
+		card->mp_rd_bitmap = bitmap;
+		dev_dbg(adapter->dev, "int: UPLD: rd_bitmap=0x%x\n",
 			card->mp_rd_bitmap);
 
 		while (true) {
@@ -1285,37 +1425,33 @@ static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
 
 			if (mwifiex_sdio_card_to_host_mp_aggr(adapter, skb,
 							      port)) {
-				u8 cr = 0;
-
 				dev_err(adapter->dev, "card_to_host_mpa failed:"
 					" int status=%#x\n", sdio_ireg);
-				if (mwifiex_read_reg(adapter,
-						     CONFIGURATION_REG, &cr))
-					dev_err(adapter->dev,
-						"read CFG reg failed\n");
-
-				dev_dbg(adapter->dev,
-					"info: CFG reg val = %d\n", cr);
-				if (mwifiex_write_reg(adapter,
-						      CONFIGURATION_REG,
-						      (cr | 0x04)))
-					dev_err(adapter->dev,
-						"write CFG reg failed\n");
-
-				dev_dbg(adapter->dev, "info: write success\n");
-				if (mwifiex_read_reg(adapter,
-						     CONFIGURATION_REG, &cr))
-					dev_err(adapter->dev,
-						"read CFG reg failed\n");
-
-				dev_dbg(adapter->dev,
-					"info: CFG reg val =%x\n", cr);
-				return -1;
+				goto term_cmd;
 			}
 		}
 	}
 
 	return 0;
+
+term_cmd:
+	/* terminate cmd */
+	if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
+		dev_err(adapter->dev, "read CFG reg failed\n");
+	else
+		dev_dbg(adapter->dev, "info: CFG reg val = %d\n", cr);
+
+	if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04)))
+		dev_err(adapter->dev, "write CFG reg failed\n");
+	else
+		dev_dbg(adapter->dev, "info: write success\n");
+
+	if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
+		dev_err(adapter->dev, "read CFG reg failed\n");
+	else
+		dev_dbg(adapter->dev, "info: CFG reg val =%x\n", cr);
+
+	return -1;
 }
 
 /*
@@ -1344,7 +1480,9 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 	s32 f_postcopy_cur_buf = 0;
 	u32 mport;
 
-	if ((!card->mpa_tx.enabled) || (port == CTRL_PORT)) {
+	if (!card->mpa_tx.enabled ||
+	    (card->has_control_mask && (port == CTRL_PORT)) ||
+	    (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) {
 		dev_dbg(adapter->dev, "info: %s: tx aggregation disabled\n",
 			__func__);
 
@@ -1419,8 +1557,26 @@ static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
 		dev_dbg(adapter->dev, "data: %s: send aggr buffer: %d %d\n",
 			__func__,
 				card->mpa_tx.start_port, card->mpa_tx.ports);
-		mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
-			 (card->mpa_tx.ports << 4)) + card->mpa_tx.start_port;
+		if (card->supports_sdio_new_mode) {
+			u32 port_count;
+			int i;
+
+			for (i = 0, port_count = 0; i < card->max_ports; i++)
+				if (card->mpa_tx.ports & BIT(i))
+					port_count++;
+
+			/* Writing data from "start_port + 0" to "start_port +
+			 * port_count -1", so decrease the count by 1
+			 */
+			port_count--;
+			mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
+				 (port_count << 8)) + card->mpa_tx.start_port;
+		} else {
+			mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
+				 (card->mpa_tx.ports << 4)) +
+				 card->mpa_tx.start_port;
+		}
+
 		ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
 						 card->mpa_tx.buf_len, mport);
 
@@ -1493,6 +1649,9 @@ static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
 		    pkt_len > MWIFIEX_UPLD_SIZE)
 			dev_err(adapter->dev, "%s: payload=%p, nb=%d\n",
 				__func__, payload, pkt_len);
+
+		if (card->supports_sdio_new_mode)
+			port = CMD_PORT_SLCT;
 	}
 
 	/* Transfer data to card */
@@ -1748,8 +1907,11 @@ mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
 
 	card->mp_data_port_mask = reg->data_port_mask;
 
-	for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
-		card->mp_data_port_mask &= ~(1 << (card->max_ports - i));
+	if (reg->start_wr_port) {
+		for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
+			card->mp_data_port_mask &=
+					~(1 << (card->max_ports - i));
+	}
 
 	card->curr_wr_port = reg->start_wr_port;
 
@@ -1857,3 +2019,4 @@ MODULE_LICENSE("GPL v2");
 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
+MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
diff --git a/drivers/net/wireless/mwifiex/sdio.h b/drivers/net/wireless/mwifiex/sdio.h
index 597db37..6d51dfd 100644
--- a/drivers/net/wireless/mwifiex/sdio.h
+++ b/drivers/net/wireless/mwifiex/sdio.h
@@ -32,6 +32,7 @@
 #define SD8786_DEFAULT_FW_NAME "mrvl/sd8786_uapsta.bin"
 #define SD8787_DEFAULT_FW_NAME "mrvl/sd8787_uapsta.bin"
 #define SD8797_DEFAULT_FW_NAME "mrvl/sd8797_uapsta.bin"
+#define SD8897_DEFAULT_FW_NAME "mrvl/sd8897_uapsta.bin"
 
 #define BLOCK_MODE	1
 #define BYTE_MODE	0
@@ -46,6 +47,23 @@
 #define CTRL_PORT			0
 #define CTRL_PORT_MASK			0x0001
 
+#define CMD_PORT_UPLD_INT_MASK		(0x1U<<6)
+#define CMD_PORT_DNLD_INT_MASK		(0x1U<<7)
+#define HOST_TERM_CMD53			(0x1U << 2)
+#define REG_PORT			0
+#define MEM_PORT			0x10000
+#define CMD_RD_LEN_0			0xB4
+#define CMD_RD_LEN_1			0xB5
+#define CARD_CONFIG_2_1_REG             0xCD
+#define CMD53_NEW_MODE			(0x1U << 0)
+#define CMD_CONFIG_0			0xB8
+#define CMD_PORT_RD_LEN_EN		(0x1U << 2)
+#define CMD_CONFIG_1			0xB9
+#define CMD_PORT_AUTO_EN		(0x1U << 0)
+#define CMD_PORT_SLCT			0x8000
+#define UP_LD_CMD_PORT_HOST_INT_STATUS	(0x40U)
+#define DN_LD_CMD_PORT_HOST_INT_STATUS	(0x80U)
+
 #define SDIO_MP_TX_AGGR_DEF_BUF_SIZE        (8192)	/* 8K */
 
 /* Multi port RX aggregation buffer size */
@@ -73,6 +91,7 @@
 #define UP_LD_HOST_INT_MASK		(0x1U)
 /* Host Control Registers : Download host interrupt mask */
 #define DN_LD_HOST_INT_MASK		(0x2U)
+
 /* Disable Host interrupt mask */
 #define	HOST_INT_DISABLE		0xff
 
@@ -196,8 +215,12 @@ struct mwifiex_sdio_card_reg {
 	u8 max_mp_regs;
 	u8 rd_bitmap_l;
 	u8 rd_bitmap_u;
+	u8 rd_bitmap_1l;
+	u8 rd_bitmap_1u;
 	u8 wr_bitmap_l;
 	u8 wr_bitmap_u;
+	u8 wr_bitmap_1l;
+	u8 wr_bitmap_1u;
 	u8 rd_len_p0_l;
 	u8 rd_len_p0_u;
 	u8 card_misc_cfg_reg;
@@ -211,6 +234,8 @@ struct sdio_mmc_card {
 	const struct mwifiex_sdio_card_reg *reg;
 	u8 max_ports;
 	u8 mp_agg_pkt_limit;
+	bool supports_sdio_new_mode;
+	bool has_control_mask;
 
 	u32 mp_rd_bitmap;
 	u32 mp_wr_bitmap;
@@ -232,6 +257,8 @@ struct mwifiex_sdio_device {
 	const struct mwifiex_sdio_card_reg *reg;
 	u8 max_ports;
 	u8 mp_agg_pkt_limit;
+	bool supports_sdio_new_mode;
+	bool has_control_mask;
 };
 
 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = {
@@ -255,11 +282,39 @@ static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = {
 	.card_misc_cfg_reg = 0x6c,
 };
 
+static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8897 = {
+	.start_rd_port = 0,
+	.start_wr_port = 0,
+	.base_0_reg = 0x60,
+	.base_1_reg = 0x61,
+	.poll_reg = 0x50,
+	.host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK |
+			CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK,
+	.status_reg_0 = 0xc0,
+	.status_reg_1 = 0xc1,
+	.sdio_int_mask = 0xff,
+	.data_port_mask = 0xffffffff,
+	.max_mp_regs = 184,
+	.rd_bitmap_l = 0x04,
+	.rd_bitmap_u = 0x05,
+	.rd_bitmap_1l = 0x06,
+	.rd_bitmap_1u = 0x07,
+	.wr_bitmap_l = 0x08,
+	.wr_bitmap_u = 0x09,
+	.wr_bitmap_1l = 0x0a,
+	.wr_bitmap_1u = 0x0b,
+	.rd_len_p0_l = 0x0c,
+	.rd_len_p0_u = 0x0d,
+	.card_misc_cfg_reg = 0xcc,
+};
+
 static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = {
 	.firmware = SD8786_DEFAULT_FW_NAME,
 	.reg = &mwifiex_reg_sd87xx,
 	.max_ports = 16,
 	.mp_agg_pkt_limit = 8,
+	.supports_sdio_new_mode = false,
+	.has_control_mask = true,
 };
 
 static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = {
@@ -267,6 +322,8 @@ static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = {
 	.reg = &mwifiex_reg_sd87xx,
 	.max_ports = 16,
 	.mp_agg_pkt_limit = 8,
+	.supports_sdio_new_mode = false,
+	.has_control_mask = true,
 };
 
 static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = {
@@ -274,6 +331,17 @@ static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = {
 	.reg = &mwifiex_reg_sd87xx,
 	.max_ports = 16,
 	.mp_agg_pkt_limit = 8,
+	.supports_sdio_new_mode = false,
+	.has_control_mask = true,
+};
+
+static const struct mwifiex_sdio_device mwifiex_sdio_sd8897 = {
+	.firmware = SD8897_DEFAULT_FW_NAME,
+	.reg = &mwifiex_reg_sd8897,
+	.max_ports = 32,
+	.mp_agg_pkt_limit = 16,
+	.supports_sdio_new_mode = true,
+	.has_control_mask = false,
 };
 
 /*
@@ -302,13 +370,23 @@ mp_rx_aggr_port_limit_reached(struct sdio_mmc_card *card)
 	u8 tmp;
 
 	if (card->curr_rd_port < card->mpa_rx.start_port) {
-		tmp = card->mp_agg_pkt_limit;
+		if (card->supports_sdio_new_mode)
+			tmp = card->mp_end_port >> 1;
+		else
+			tmp = card->mp_agg_pkt_limit;
 
 		if (((card->max_ports - card->mpa_rx.start_port) +
 		    card->curr_rd_port) >= tmp)
 			return true;
 	}
 
+	if (!card->supports_sdio_new_mode)
+		return false;
+
+	if ((card->curr_rd_port - card->mpa_rx.start_port) >=
+	    (card->mp_end_port >> 1))
+		return true;
+
 	return false;
 }
 
@@ -318,13 +396,23 @@ mp_tx_aggr_port_limit_reached(struct sdio_mmc_card *card)
 	u16 tmp;
 
 	if (card->curr_wr_port < card->mpa_tx.start_port) {
-		tmp = card->mp_agg_pkt_limit;
+		if (card->supports_sdio_new_mode)
+			tmp = card->mp_end_port >> 1;
+		else
+			tmp = card->mp_agg_pkt_limit;
 
 		if (((card->max_ports - card->mpa_tx.start_port) +
 		    card->curr_wr_port) >= tmp)
 			return true;
 	}
 
+	if (!card->supports_sdio_new_mode)
+		return false;
+
+	if ((card->curr_wr_port - card->mpa_tx.start_port) >=
+	    (card->mp_end_port >> 1))
+		return true;
+
 	return false;
 }
 
@@ -337,11 +425,14 @@ static inline void mp_rx_aggr_setup(struct sdio_mmc_card *card,
 	if (!card->mpa_rx.pkt_cnt)
 		card->mpa_rx.start_port = port;
 
-	if (card->mpa_rx.start_port <= port)
-		card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt);
-	else
-		card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt + 1);
-
+	if (card->supports_sdio_new_mode) {
+		card->mpa_rx.ports |= (1 << port);
+	} else {
+		if (card->mpa_rx.start_port <= port)
+			card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt);
+		else
+			card->mpa_rx.ports |= 1 << (card->mpa_rx.pkt_cnt + 1);
+	}
 	card->mpa_rx.skb_arr[card->mpa_rx.pkt_cnt] = skb;
 	card->mpa_rx.len_arr[card->mpa_rx.pkt_cnt] = skb->len;
 	card->mpa_rx.pkt_cnt++;
-- 
cgit v0.10.2


From f91f5f05f99099402b807f2aa346685a0284ba48 Mon Sep 17 00:00:00 2001
From: Libo Chen <libo.chen@huawei.com>
Date: Tue, 21 May 2013 10:42:40 +0800
Subject: drivers/net/wireless/brcm80211/brcmfmac: add missing platform_driver
 owner

set the owner of platform_driver, to ensure that the
caller of driver holds a module refernece

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 44fa0cd..11400b3 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -606,7 +606,8 @@ static int brcmf_sdio_pd_remove(struct platform_device *pdev)
 static struct platform_driver brcmf_sdio_pd = {
 	.remove		= brcmf_sdio_pd_remove,
 	.driver		= {
-		.name	= BRCMFMAC_SDIO_PDATA_NAME
+		.name	= BRCMFMAC_SDIO_PDATA_NAME,
+		.owner	= THIS_MODULE,
 	}
 };
 
-- 
cgit v0.10.2


From 61c951503be1935f24760ae6c43483c5c9529646 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:06 +0000
Subject: net/ethernet/silan/sc92031: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/silan/sc92031.c b/drivers/net/ethernet/silan/sc92031.c
index 28f7268..5eb933c 100644
--- a/drivers/net/ethernet/silan/sc92031.c
+++ b/drivers/net/ethernet/silan/sc92031.c
@@ -1578,19 +1578,7 @@ static struct pci_driver sc92031_pci_driver = {
 	.resume		= sc92031_resume,
 };
 
-static int __init sc92031_init(void)
-{
-	return pci_register_driver(&sc92031_pci_driver);
-}
-
-static void __exit sc92031_exit(void)
-{
-	pci_unregister_driver(&sc92031_pci_driver);
-}
-
-module_init(sc92031_init);
-module_exit(sc92031_exit);
-
+module_pci_driver(sc92031_pci_driver);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Cesar Eduardo Barros <cesarb@cesarb.net>");
 MODULE_DESCRIPTION("Silan SC92031 PCI Fast Ethernet Adapter driver");
-- 
cgit v0.10.2


From 2c21d6c98813829fad79b17460fd289109a77099 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:07 +0000
Subject: net/ethernet/atheros/atl1c/atl1c_main: Use module_pci_driver to
 register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 0ba9007..786a874 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -2755,27 +2755,4 @@ static struct pci_driver atl1c_driver = {
 	.driver.pm = &atl1c_pm_ops,
 };
 
-/**
- * atl1c_init_module - Driver Registration Routine
- *
- * atl1c_init_module is the first routine called when the driver is
- * loaded. All it does is register with the PCI subsystem.
- */
-static int __init atl1c_init_module(void)
-{
-	return pci_register_driver(&atl1c_driver);
-}
-
-/**
- * atl1c_exit_module - Driver Exit Cleanup Routine
- *
- * atl1c_exit_module is called just before the driver is removed
- * from memory.
- */
-static void __exit atl1c_exit_module(void)
-{
-	pci_unregister_driver(&atl1c_driver);
-}
-
-module_init(atl1c_init_module);
-module_exit(atl1c_exit_module);
+module_pci_driver(atl1c_driver);
-- 
cgit v0.10.2


From 687df5d489cd1ddf7d2d231bd824f6b687bfb26b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:08 +0000
Subject: net/ethernet/atheros/atl1e/atl1e_main: Use module_pci_driver to
 register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
index 0688bb8..895f537 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
@@ -2489,27 +2489,4 @@ static struct pci_driver atl1e_driver = {
 	.err_handler = &atl1e_err_handler
 };
 
-/**
- * atl1e_init_module - Driver Registration Routine
- *
- * atl1e_init_module is the first routine called when the driver is
- * loaded. All it does is register with the PCI subsystem.
- */
-static int __init atl1e_init_module(void)
-{
-	return pci_register_driver(&atl1e_driver);
-}
-
-/**
- * atl1e_exit_module - Driver Exit Cleanup Routine
- *
- * atl1e_exit_module is called just before the driver is removed
- * from memory.
- */
-static void __exit atl1e_exit_module(void)
-{
-	pci_unregister_driver(&atl1e_driver);
-}
-
-module_init(atl1e_init_module);
-module_exit(atl1e_exit_module);
+module_pci_driver(atl1e_driver);
-- 
cgit v0.10.2


From c996f4e8f053ddab28fa196e5b18bdd93e8ee3a2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:09 +0000
Subject: net/ethernet/atheros/atlx/atl1: Use module_pci_driver to register
 driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/atlx/atl1.c b/drivers/net/ethernet/atheros/atlx/atl1.c
index fa0915f..538211d 100644
--- a/drivers/net/ethernet/atheros/atlx/atl1.c
+++ b/drivers/net/ethernet/atheros/atlx/atl1.c
@@ -3145,31 +3145,6 @@ static struct pci_driver atl1_driver = {
 	.driver.pm = &atl1_pm_ops,
 };
 
-/**
- * atl1_exit_module - Driver Exit Cleanup Routine
- *
- * atl1_exit_module is called just before the driver is removed
- * from memory.
- */
-static void __exit atl1_exit_module(void)
-{
-	pci_unregister_driver(&atl1_driver);
-}
-
-/**
- * atl1_init_module - Driver Registration Routine
- *
- * atl1_init_module is the first routine called when the driver is
- * loaded. All it does is register with the PCI subsystem.
- */
-static int __init atl1_init_module(void)
-{
-	return pci_register_driver(&atl1_driver);
-}
-
-module_init(atl1_init_module);
-module_exit(atl1_exit_module);
-
 struct atl1_stats {
 	char stat_string[ETH_GSTRING_LEN];
 	int sizeof_stat;
@@ -3705,3 +3680,5 @@ static const struct ethtool_ops atl1_ethtool_ops = {
 	.get_ethtool_stats	= atl1_get_ethtool_stats,
 	.get_sset_count		= atl1_get_sset_count,
 };
+
+module_pci_driver(atl1_driver);
-- 
cgit v0.10.2


From 52a58f9df12ab03bda432b398a4bdfcc9ed2b414 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:10 +0000
Subject: net/ethernet/sis/sis190: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sis/sis190.c b/drivers/net/ethernet/sis/sis190.c
index 9a9c379..02df089 100644
--- a/drivers/net/ethernet/sis/sis190.c
+++ b/drivers/net/ethernet/sis/sis190.c
@@ -1934,15 +1934,4 @@ static struct pci_driver sis190_pci_driver = {
 	.remove		= sis190_remove_one,
 };
 
-static int __init sis190_init_module(void)
-{
-	return pci_register_driver(&sis190_pci_driver);
-}
-
-static void __exit sis190_cleanup_module(void)
-{
-	pci_unregister_driver(&sis190_pci_driver);
-}
-
-module_init(sis190_init_module);
-module_exit(sis190_cleanup_module);
+module_pci_driver(sis190_pci_driver);
-- 
cgit v0.10.2


From 31d60ebfbe6792068e8951741f92f40bdea97837 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:11 +0000
Subject: net/ethernet/dec/tulip/xircom_cb: Use module_pci_driver to register
 driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/dec/tulip/xircom_cb.c b/drivers/net/ethernet/dec/tulip/xircom_cb.c
index cdbcd16..9b84cb0 100644
--- a/drivers/net/ethernet/dec/tulip/xircom_cb.c
+++ b/drivers/net/ethernet/dec/tulip/xircom_cb.c
@@ -1171,16 +1171,4 @@ investigate_write_descriptor(struct net_device *dev,
 	}
 }
 
-static int __init xircom_init(void)
-{
-	return pci_register_driver(&xircom_ops);
-}
-
-static void __exit xircom_exit(void)
-{
-	pci_unregister_driver(&xircom_ops);
-}
-
-module_init(xircom_init)
-module_exit(xircom_exit)
-
+module_pci_driver(xircom_ops);
-- 
cgit v0.10.2


From b6f5721087e72d11ff3daab565afddc5918c024b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:12 +0000
Subject: net/ethernet/toshiba/tc35815: Use module_pci_driver to register
 driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c
index fe25609..a971b9c 100644
--- a/drivers/net/ethernet/toshiba/tc35815.c
+++ b/drivers/net/ethernet/toshiba/tc35815.c
@@ -2209,18 +2209,6 @@ MODULE_PARM_DESC(speed, "0:auto, 10:10Mbps, 100:100Mbps");
 module_param_named(duplex, options.duplex, int, 0);
 MODULE_PARM_DESC(duplex, "0:auto, 1:half, 2:full");
 
-static int __init tc35815_init_module(void)
-{
-	return pci_register_driver(&tc35815_pci_driver);
-}
-
-static void __exit tc35815_cleanup_module(void)
-{
-	pci_unregister_driver(&tc35815_pci_driver);
-}
-
-module_init(tc35815_init_module);
-module_exit(tc35815_cleanup_module);
-
+module_pci_driver(tc35815_pci_driver);
 MODULE_DESCRIPTION("TOSHIBA TC35815 PCI 10M/100M Ethernet driver");
 MODULE_LICENSE("GPL");
-- 
cgit v0.10.2


From 43d426c3f938b9ac21f452fcd22956ed2f526f4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:13 +0000
Subject: net/ethernet/icplus/ipg: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/icplus/ipg.c b/drivers/net/ethernet/icplus/ipg.c
index 068d781..1fde90b 100644
--- a/drivers/net/ethernet/icplus/ipg.c
+++ b/drivers/net/ethernet/icplus/ipg.c
@@ -2298,15 +2298,4 @@ static struct pci_driver ipg_pci_driver = {
 	.remove		= ipg_remove,
 };
 
-static int __init ipg_init_module(void)
-{
-	return pci_register_driver(&ipg_pci_driver);
-}
-
-static void __exit ipg_exit_module(void)
-{
-	pci_unregister_driver(&ipg_pci_driver);
-}
-
-module_init(ipg_init_module);
-module_exit(ipg_exit_module);
+module_pci_driver(ipg_pci_driver);
-- 
cgit v0.10.2


From e6d20fca76cfe4a36f8dbaac6b3847e6dad63e4c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:42:14 +0000
Subject: net/ethernet/alteon/acenic: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/alteon/acenic.c b/drivers/net/ethernet/alteon/acenic.c
index b7894f8..219be1b 100644
--- a/drivers/net/ethernet/alteon/acenic.c
+++ b/drivers/net/ethernet/alteon/acenic.c
@@ -702,19 +702,6 @@ static struct pci_driver acenic_pci_driver = {
 	.remove		= acenic_remove_one,
 };
 
-static int __init acenic_init(void)
-{
-	return pci_register_driver(&acenic_pci_driver);
-}
-
-static void __exit acenic_exit(void)
-{
-	pci_unregister_driver(&acenic_pci_driver);
-}
-
-module_init(acenic_init);
-module_exit(acenic_exit);
-
 static void ace_free_descriptors(struct net_device *dev)
 {
 	struct ace_private *ap = netdev_priv(dev);
@@ -3199,3 +3186,5 @@ static int read_eeprom_byte(struct net_device *dev, unsigned long offset)
 	       ap->name, offset);
 	goto out;
 }
+
+module_pci_driver(acenic_pci_driver);
-- 
cgit v0.10.2


From 5a4123f39ef14fc7c043f1611ed3b20b69325146 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:58:05 +0000
Subject: net/ethernet/broadcom/bnx2: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 5d20449..1a1b23e 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -8764,18 +8764,4 @@ static struct pci_driver bnx2_pci_driver = {
 	.err_handler	= &bnx2_err_handler,
 };
 
-static int __init bnx2_init(void)
-{
-	return pci_register_driver(&bnx2_pci_driver);
-}
-
-static void __exit bnx2_cleanup(void)
-{
-	pci_unregister_driver(&bnx2_pci_driver);
-}
-
-module_init(bnx2_init);
-module_exit(bnx2_cleanup);
-
-
-
+module_pci_driver(bnx2_pci_driver);
-- 
cgit v0.10.2


From 8dbb0dc2cb16096efe998c576170e41dc6e8b64f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:58:06 +0000
Subject: net/ethernet/broadcom/tg3: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index fb06aa1..4f0e3fe 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -17804,15 +17804,4 @@ static struct pci_driver tg3_driver = {
 	.driver.pm	= &tg3_pm_ops,
 };
 
-static int __init tg3_init(void)
-{
-	return pci_register_driver(&tg3_driver);
-}
-
-static void __exit tg3_cleanup(void)
-{
-	pci_unregister_driver(&tg3_driver);
-}
-
-module_init(tg3_init);
-module_exit(tg3_cleanup);
+module_pci_driver(tg3_driver);
-- 
cgit v0.10.2


From e0fc4441f98e19d8120f2a385c9e75bc55369b81 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:58:07 +0000
Subject: net/ethernet/sgi/ioc3-eth: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index 7ed08c3..ffa7843 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -1398,16 +1398,6 @@ static struct pci_driver ioc3_driver = {
 	.remove		= ioc3_remove_one,
 };
 
-static int __init ioc3_init_module(void)
-{
-	return pci_register_driver(&ioc3_driver);
-}
-
-static void __exit ioc3_cleanup_module(void)
-{
-	pci_unregister_driver(&ioc3_driver);
-}
-
 static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	unsigned long data;
@@ -1677,9 +1667,7 @@ static void ioc3_set_multicast_list(struct net_device *dev)
 	netif_wake_queue(dev);			/* Let us get going again. */
 }
 
+module_pci_driver(ioc3_driver);
 MODULE_AUTHOR("Ralf Baechle <ralf@linux-mips.org>");
 MODULE_DESCRIPTION("SGI IOC3 Ethernet driver");
 MODULE_LICENSE("GPL");
-
-module_init(ioc3_init_module);
-module_exit(ioc3_cleanup_module);
-- 
cgit v0.10.2


From 70a611debe964ae508d67528d82ca7fa0715f5a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:58:08 +0000
Subject: net/ethernet/qlogic/qlge/qlge_main: Use module_pci_driver to register
 driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 50235d2..e04d471 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -4945,15 +4945,4 @@ static struct pci_driver qlge_driver = {
 	.err_handler = &qlge_err_handler
 };
 
-static int __init qlge_init_module(void)
-{
-	return pci_register_driver(&qlge_driver);
-}
-
-static void __exit qlge_exit(void)
-{
-	pci_unregister_driver(&qlge_driver);
-}
-
-module_init(qlge_init_module);
-module_exit(qlge_exit);
+module_pci_driver(qlge_driver);
-- 
cgit v0.10.2


From 5119ad0b7388641815bad0bacdc5133532d24685 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:58:09 +0000
Subject: net/ethernet/sun/sungem: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c
index 5f3f9d5..e62df2b 100644
--- a/drivers/net/ethernet/sun/sungem.c
+++ b/drivers/net/ethernet/sun/sungem.c
@@ -3028,15 +3028,4 @@ static struct pci_driver gem_driver = {
 #endif /* CONFIG_PM */
 };
 
-static int __init gem_init(void)
-{
-	return pci_register_driver(&gem_driver);
-}
-
-static void __exit gem_cleanup(void)
-{
-	pci_unregister_driver(&gem_driver);
-}
-
-module_init(gem_init);
-module_exit(gem_cleanup);
+module_pci_driver(gem_driver);
-- 
cgit v0.10.2


From a46e6ccdd1cd557cbb9a24022ee027d09a4bd625 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 12:58:10 +0000
Subject: net/ethernet/amd/amd8111e: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/amd/amd8111e.c b/drivers/net/ethernet/amd/amd8111e.c
index 8e6b665..bc71aec 100644
--- a/drivers/net/ethernet/amd/amd8111e.c
+++ b/drivers/net/ethernet/amd/amd8111e.c
@@ -1981,15 +1981,4 @@ static struct pci_driver amd8111e_driver = {
 	.resume		= amd8111e_resume
 };
 
-static int __init amd8111e_init(void)
-{
-	return pci_register_driver(&amd8111e_driver);
-}
-
-static void __exit amd8111e_cleanup(void)
-{
-	pci_unregister_driver(&amd8111e_driver);
-}
-
-module_init(amd8111e_init);
-module_exit(amd8111e_cleanup);
+module_pci_driver(amd8111e_driver);
-- 
cgit v0.10.2


From ff7150550d9e3d9dd9ceadebbe8ee45e74c1ffdb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 13:42:53 +0000
Subject: net/hippi/rrunner: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/hippi/rrunner.c b/drivers/net/hippi/rrunner.c
index 3c4d627..00ed751 100644
--- a/drivers/net/hippi/rrunner.c
+++ b/drivers/net/hippi/rrunner.c
@@ -1686,15 +1686,4 @@ static struct pci_driver rr_driver = {
 	.remove		= rr_remove_one,
 };
 
-static int __init rr_init_module(void)
-{
-	return pci_register_driver(&rr_driver);
-}
-
-static void __exit rr_cleanup_module(void)
-{
-	pci_unregister_driver(&rr_driver);
-}
-
-module_init(rr_init_module);
-module_exit(rr_cleanup_module);
+module_pci_driver(rr_driver);
-- 
cgit v0.10.2


From 30d05f9ef7c2caa7efd8ca5c0698ff5e9d5542ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 13:42:54 +0000
Subject: net/fddi/skfp/skfddi: Use module_pci_driver to register driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/fddi/skfp/skfddi.c b/drivers/net/fddi/skfp/skfddi.c
index d5bd563..f5d7305 100644
--- a/drivers/net/fddi/skfp/skfddi.c
+++ b/drivers/net/fddi/skfp/skfddi.c
@@ -2246,15 +2246,4 @@ static struct pci_driver skfddi_pci_driver = {
 	.remove		= skfp_remove_one,
 };
 
-static int __init skfd_init(void)
-{
-	return pci_register_driver(&skfddi_pci_driver);
-}
-
-static void __exit skfd_exit(void)
-{
-	pci_unregister_driver(&skfddi_pci_driver);
-}
-
-module_init(skfd_init);
-module_exit(skfd_exit);
+module_pci_driver(skfddi_pci_driver);
-- 
cgit v0.10.2


From 65c21912b5b977f32a12336e87fe32f36105b981 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 13:42:55 +0000
Subject: net/ethernet/chelsio/cxgb/cxgb2: Use module_pci_driver to register
 driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

The name of the pci_driver struct had to be changed in order to prevent
a build failure.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
index 9624cfe..d7048db 100644
--- a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
+++ b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
@@ -1351,22 +1351,11 @@ static void remove_one(struct pci_dev *pdev)
 	t1_sw_reset(pdev);
 }
 
-static struct pci_driver driver = {
+static struct pci_driver cxgb_pci_driver = {
 	.name     = DRV_NAME,
 	.id_table = t1_pci_tbl,
 	.probe    = init_one,
 	.remove   = remove_one,
 };
 
-static int __init t1_init_module(void)
-{
-	return pci_register_driver(&driver);
-}
-
-static void __exit t1_cleanup_module(void)
-{
-	pci_unregister_driver(&driver);
-}
-
-module_init(t1_init_module);
-module_exit(t1_cleanup_module);
+module_pci_driver(cxgb_pci_driver);
-- 
cgit v0.10.2


From 4f45c40f2c018e5c278988521a74fd5ee06fb819 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20H=C3=BCwe?= <PeterHuewe@gmx.de>
Date: Tue, 21 May 2013 13:42:56 +0000
Subject: net/ethernet/nvidia/forcedeth: Use module_pci_driver to register
 driver

Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

The name of the pci_driver struct had to be changed in order to prevent
a build failure.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index b003fe5..098b96d 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -6340,7 +6340,7 @@ static DEFINE_PCI_DEVICE_TABLE(pci_tbl) = {
 	{0,},
 };
 
-static struct pci_driver driver = {
+static struct pci_driver forcedeth_pci_driver = {
 	.name		= DRV_NAME,
 	.id_table	= pci_tbl,
 	.probe		= nv_probe,
@@ -6349,16 +6349,6 @@ static struct pci_driver driver = {
 	.driver.pm	= NV_PM_OPS,
 };
 
-static int __init init_nic(void)
-{
-	return pci_register_driver(&driver);
-}
-
-static void __exit exit_nic(void)
-{
-	pci_unregister_driver(&driver);
-}
-
 module_param(max_interrupt_work, int, 0);
 MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt");
 module_param(optimization_mode, int, 0);
@@ -6379,11 +6369,8 @@ module_param(debug_tx_timeout, bool, 0);
 MODULE_PARM_DESC(debug_tx_timeout,
 		 "Dump tx related registers and ring when tx_timeout happens");
 
+module_pci_driver(forcedeth_pci_driver);
 MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>");
 MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver");
 MODULE_LICENSE("GPL");
-
 MODULE_DEVICE_TABLE(pci, pci_tbl);
-
-module_init(init_nic);
-module_exit(exit_nic);
-- 
cgit v0.10.2


From 1c8ad5bfa2be5025b0c81e3c2decd0574d453ab1 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Tue, 21 May 2013 21:52:54 +0000
Subject: bridge: use the bridge IP addr as source addr for querier

Quote from Adam:
"If it is believed that the use of 0.0.0.0
as the IP address is what is causing strange behaviour on other devices
then is there a good reason that a bridge rather than a router shouldn't
be the active querier? If not then using the bridge IP address and
having the querier enabled by default may be a reasonable solution
(provided that our querier obeys the election rules and shuts up if it
sees a query from a lower IP address that isn't 0.0.0.0). Just because a
device is the elected querier for IGMP doesn't appear to mean it is
required to perform any other routing functions."

And introduce a new troggle for it, as suggested by Herbert.

Suggested-by: Adam Baker <linux@baker-net.org.uk>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 81f2389..2475147 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -23,6 +23,7 @@
 #include <linux/skbuff.h>
 #include <linux/slab.h>
 #include <linux/timer.h>
+#include <linux/inetdevice.h>
 #include <net/ip.h>
 #if IS_ENABLED(CONFIG_IPV6)
 #include <net/ipv6.h>
@@ -381,7 +382,8 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge *br,
 	iph->frag_off = htons(IP_DF);
 	iph->ttl = 1;
 	iph->protocol = IPPROTO_IGMP;
-	iph->saddr = 0;
+	iph->saddr = br->multicast_query_use_ifaddr ?
+		     inet_select_addr(br->dev, 0, RT_SCOPE_LINK) : 0;
 	iph->daddr = htonl(INADDR_ALLHOSTS_GROUP);
 	((u8 *)&iph[1])[0] = IPOPT_RA;
 	((u8 *)&iph[1])[1] = 4;
@@ -1618,6 +1620,7 @@ void br_multicast_init(struct net_bridge *br)
 
 	br->multicast_router = 1;
 	br->multicast_querier = 0;
+	br->multicast_query_use_ifaddr = 0;
 	br->multicast_last_member_count = 2;
 	br->multicast_startup_query_count = 2;
 
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index d2c043a..e260710 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -249,6 +249,7 @@ struct net_bridge
 
 	u8				multicast_disabled:1;
 	u8				multicast_querier:1;
+	u8				multicast_query_use_ifaddr:1;
 
 	u32				hash_elasticity;
 	u32				hash_max;
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 8baa9c0..394bb96 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -375,6 +375,31 @@ static ssize_t store_multicast_snooping(struct device *d,
 static DEVICE_ATTR(multicast_snooping, S_IRUGO | S_IWUSR,
 		   show_multicast_snooping, store_multicast_snooping);
 
+static ssize_t show_multicast_query_use_ifaddr(struct device *d,
+				      struct device_attribute *attr,
+				      char *buf)
+{
+	struct net_bridge *br = to_bridge(d);
+	return sprintf(buf, "%d\n", br->multicast_query_use_ifaddr);
+}
+
+static int set_query_use_ifaddr(struct net_bridge *br, unsigned long val)
+{
+	br->multicast_query_use_ifaddr = !!val;
+	return 0;
+}
+
+static ssize_t
+store_multicast_query_use_ifaddr(struct device *d,
+				 struct device_attribute *attr,
+				 const char *buf, size_t len)
+{
+	return store_bridge_parm(d, buf, len, set_query_use_ifaddr);
+}
+static DEVICE_ATTR(multicast_query_use_ifaddr, S_IRUGO | S_IWUSR,
+		   show_multicast_query_use_ifaddr,
+		   store_multicast_query_use_ifaddr);
+
 static ssize_t show_multicast_querier(struct device *d,
 				      struct device_attribute *attr,
 				      char *buf)
@@ -734,6 +759,7 @@ static struct attribute *bridge_attrs[] = {
 	&dev_attr_multicast_router.attr,
 	&dev_attr_multicast_snooping.attr,
 	&dev_attr_multicast_querier.attr,
+	&dev_attr_multicast_query_use_ifaddr.attr,
 	&dev_attr_hash_elasticity.attr,
 	&dev_attr_hash_max.attr,
 	&dev_attr_multicast_last_member_count.attr,
-- 
cgit v0.10.2


From 9f00b2e7cf241fa389733d41b615efdaa2cb0f5b Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Tue, 21 May 2013 21:52:55 +0000
Subject: bridge: only expire the mdb entry when query is received

Currently we arm the expire timer when the mdb entry is added,
however, this causes problem when there is no querier sent
out after that.

So we should only arm the timer when a corresponding query is
received, as suggested by Herbert.

And he also mentioned "if there is no querier then group
subscriptions shouldn't expire. There has to be at least one querier
in the network for this thing to work.  Otherwise it just degenerates
into a non-snooping switch, which is OK."

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 2475147..40bda80 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -617,8 +617,6 @@ rehash:
 
 	mp->br = br;
 	mp->addr = *group;
-	setup_timer(&mp->timer, br_multicast_group_expired,
-		    (unsigned long)mp);
 
 	hlist_add_head_rcu(&mp->hlist[mdb->ver], &mdb->mhash[hash]);
 	mdb->size++;
@@ -656,7 +654,6 @@ static int br_multicast_add_group(struct net_bridge *br,
 	struct net_bridge_mdb_entry *mp;
 	struct net_bridge_port_group *p;
 	struct net_bridge_port_group __rcu **pp;
-	unsigned long now = jiffies;
 	int err;
 
 	spin_lock(&br->multicast_lock);
@@ -671,7 +668,6 @@ static int br_multicast_add_group(struct net_bridge *br,
 
 	if (!port) {
 		mp->mglist = true;
-		mod_timer(&mp->timer, now + br->multicast_membership_interval);
 		goto out;
 	}
 
@@ -679,7 +675,7 @@ static int br_multicast_add_group(struct net_bridge *br,
 	     (p = mlock_dereference(*pp, br)) != NULL;
 	     pp = &p->next) {
 		if (p->port == port)
-			goto found;
+			goto out;
 		if ((unsigned long)p->port < (unsigned long)port)
 			break;
 	}
@@ -690,8 +686,6 @@ static int br_multicast_add_group(struct net_bridge *br,
 	rcu_assign_pointer(*pp, p);
 	br_mdb_notify(br->dev, port, group, RTM_NEWMDB);
 
-found:
-	mod_timer(&p->timer, now + br->multicast_membership_interval);
 out:
 	err = 0;
 
@@ -1131,6 +1125,10 @@ static int br_ip4_multicast_query(struct net_bridge *br,
 	if (!mp)
 		goto out;
 
+	setup_timer(&mp->timer, br_multicast_group_expired, (unsigned long)mp);
+	mod_timer(&mp->timer, now + br->multicast_membership_interval);
+	mp->timer_armed = true;
+
 	max_delay *= br->multicast_last_member_count;
 
 	if (mp->mglist &&
@@ -1205,6 +1203,10 @@ static int br_ip6_multicast_query(struct net_bridge *br,
 	if (!mp)
 		goto out;
 
+	setup_timer(&mp->timer, br_multicast_group_expired, (unsigned long)mp);
+	mod_timer(&mp->timer, now + br->multicast_membership_interval);
+	mp->timer_armed = true;
+
 	max_delay *= br->multicast_last_member_count;
 	if (mp->mglist &&
 	    (timer_pending(&mp->timer) ?
@@ -1263,7 +1265,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
 			call_rcu_bh(&p->rcu, br_multicast_free_pg);
 			br_mdb_notify(br->dev, port, group, RTM_DELMDB);
 
-			if (!mp->ports && !mp->mglist &&
+			if (!mp->ports && !mp->mglist && mp->timer_armed &&
 			    netif_running(br->dev))
 				mod_timer(&mp->timer, jiffies);
 		}
@@ -1275,30 +1277,12 @@ static void br_multicast_leave_group(struct net_bridge *br,
 		     br->multicast_last_member_interval;
 
 	if (!port) {
-		if (mp->mglist &&
+		if (mp->mglist && mp->timer_armed &&
 		    (timer_pending(&mp->timer) ?
 		     time_after(mp->timer.expires, time) :
 		     try_to_del_timer_sync(&mp->timer) >= 0)) {
 			mod_timer(&mp->timer, time);
 		}
-
-		goto out;
-	}
-
-	for (p = mlock_dereference(mp->ports, br);
-	     p != NULL;
-	     p = mlock_dereference(p->next, br)) {
-		if (p->port != port)
-			continue;
-
-		if (!hlist_unhashed(&p->mglist) &&
-		    (timer_pending(&p->timer) ?
-		     time_after(p->timer.expires, time) :
-		     try_to_del_timer_sync(&p->timer) >= 0)) {
-			mod_timer(&p->timer, time);
-		}
-
-		break;
 	}
 
 out:
@@ -1674,6 +1658,7 @@ void br_multicast_stop(struct net_bridge *br)
 		hlist_for_each_entry_safe(mp, n, &mdb->mhash[i],
 					  hlist[ver]) {
 			del_timer(&mp->timer);
+			mp->timer_armed = false;
 			call_rcu_bh(&mp->rcu, br_multicast_free_group);
 		}
 	}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index e260710..1b0ac95 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -112,6 +112,7 @@ struct net_bridge_mdb_entry
 	struct timer_list		timer;
 	struct br_ip			addr;
 	bool				mglist;
+	bool				timer_armed;
 };
 
 struct net_bridge_mdb_htable
-- 
cgit v0.10.2


From 6b7df111ece130fa979a0c4f58e53674c1e47d3e Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Tue, 21 May 2013 21:52:56 +0000
Subject: bridge: send query as soon as leave is received

Continue sending queries when leave is received if the user marks
it as a querier.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 40bda80..37a4676 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1250,6 +1250,32 @@ static void br_multicast_leave_group(struct net_bridge *br,
 	if (!mp)
 		goto out;
 
+	if (br->multicast_querier &&
+	    !timer_pending(&br->multicast_querier_timer)) {
+		__br_multicast_send_query(br, port, &mp->addr);
+
+		time = jiffies + br->multicast_last_member_count *
+				 br->multicast_last_member_interval;
+		mod_timer(port ? &port->multicast_query_timer :
+				 &br->multicast_query_timer, time);
+
+		for (p = mlock_dereference(mp->ports, br);
+		     p != NULL;
+		     p = mlock_dereference(p->next, br)) {
+			if (p->port != port)
+				continue;
+
+			if (!hlist_unhashed(&p->mglist) &&
+			    (timer_pending(&p->timer) ?
+			     time_after(p->timer.expires, time) :
+			     try_to_del_timer_sync(&p->timer) >= 0)) {
+				mod_timer(&p->timer, time);
+			}
+
+			break;
+		}
+	}
+
 	if (port && (port->flags & BR_MULTICAST_FAST_LEAVE)) {
 		struct net_bridge_port_group __rcu **pp;
 
-- 
cgit v0.10.2


From 1cdbcb7957cf9e5f841dbcde9b38fd18a804208b Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Sun, 19 May 2013 15:46:49 +0000
Subject: net: Loosen constraints for recalculating checksum in skb_segment()

This is a generic solution to resolve a specific problem that I have observed.

If the encapsulation of an skb changes then ability to offload checksums
may also change. In particular it may be necessary to perform checksumming
in software.

An example of such a case is where a non-GRE packet is received but
is to be encapsulated and transmitted as GRE.

Another example relates to my proposed support for for packets
that are non-MPLS when received but MPLS when transmitted.

The cost of this change is that the value of the csum variable may be
checked when it previously was not. In the case where the csum variable is
true this is pure overhead. In the case where the csum variable is false it
leads to software checksumming, which I believe also leads to correct
checksums in transmitted packets for the cases described above.

Further analysis:

This patch relies on the return value of can_checksum_protocol()
being correct and in turn the return value of skb_network_protocol(),
used to provide the protocol parameter of can_checksum_protocol(),
being correct. It also relies on the features passed to skb_segment()
and in turn to can_checksum_protocol() being correct.

I believe that this problem has not been observed for VLANs because it
appears that almost all drivers, the exception being xgbe, set
vlan_features such that that the checksum offload support for VLAN packets
is greater than or equal to that of non-VLAN packets.

I wonder if the code in xgbe may be an oversight and the hardware does
support checksumming of VLAN packets.  If so it may be worth updating the
vlan_features of the driver as this patch will force such checksums to be
performed in software rather than hardware.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index af9185d..d629891 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2853,7 +2853,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 						 doffset + tnl_hlen);
 
 		if (fskb != skb_shinfo(skb)->frag_list)
-			continue;
+			goto perform_csum_check;
 
 		if (!sg) {
 			nskb->ip_summed = CHECKSUM_NONE;
@@ -2917,6 +2917,7 @@ skip_fraglist:
 		nskb->len += nskb->data_len;
 		nskb->truesize += nskb->data_len;
 
+perform_csum_check:
 		if (!csum) {
 			nskb->csum = skb_checksum(nskb, doffset,
 						  nskb->len - doffset, 0);
-- 
cgit v0.10.2


From f1238261891bea67da845688b7684a3444c61bd9 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Tue, 21 May 2013 00:22:37 +0000
Subject: net: smsc911x: don't artificially limit build

Currently the SMSC911X driver may only be built for a specific set of
architectures, being limited to do so by a Kconfig depends line. This
means that if a platform wishes to use the driver, its architecture must
be added to the list explicitly, introducing pointless churn.

This may have been due to the driver's use of the {read,write}s{b,w,l}
functions, which have since been replaced with the more standard
io{read,write}{8,16,32}_rep. We can instead depend on HAS_IOMEM, which
should prevent build issues while allowing the driver to be built for
currently unlisted architectures, including x86 and arm64.

This patch removes the explicit list of architectures from the driver's
depend line, and replaces it with a dependency on HAS_IOMEM.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/smsc/Kconfig b/drivers/net/ethernet/smsc/Kconfig
index bb4c167..ff9e994 100644
--- a/drivers/net/ethernet/smsc/Kconfig
+++ b/drivers/net/ethernet/smsc/Kconfig
@@ -97,7 +97,7 @@ config SMC911X
 
 config SMSC911X
 	tristate "SMSC LAN911x/LAN921x families embedded ethernet support"
-	depends on (ARM || SUPERH || BLACKFIN || MIPS || MN10300)
+	depends on HAS_IOMEM
 	select CRC32
 	select NET_CORE
 	select MII
-- 
cgit v0.10.2


From 9313eb4be3220054c07a7c34c38764ea1ebcd220 Mon Sep 17 00:00:00 2001
From: Jay Fenlason <fenlason@redhat.com>
Date: Tue, 21 May 2013 04:21:28 +0000
Subject: cxgb3: Fix warning about using rcu_dereference when not in a
 rcu-locked section

It is about using rcu_dereference() when not in a rcu-locked section. It only
happens on initialization hence fix the initialization to not rcu_dereference()

Signed-off-by: Jay Fenlason <fenlason@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c
index 0c96e5f..4058b85 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c
@@ -1246,6 +1246,7 @@ int cxgb3_offload_activate(struct adapter *adapter)
 	struct tid_range stid_range, tid_range;
 	struct mtutab mtutab;
 	unsigned int l2t_capacity;
+	struct l2t_data *l2td;
 
 	t = kzalloc(sizeof(*t), GFP_KERNEL);
 	if (!t)
@@ -1261,8 +1262,8 @@ int cxgb3_offload_activate(struct adapter *adapter)
 		goto out_free;
 
 	err = -ENOMEM;
-	RCU_INIT_POINTER(dev->l2opt, t3_init_l2t(l2t_capacity));
-	if (!L2DATA(dev))
+	l2td = t3_init_l2t(l2t_capacity);
+	if (!l2td)
 		goto out_free;
 
 	natids = min(tid_range.num / 2, MAX_ATIDS);
@@ -1279,6 +1280,7 @@ int cxgb3_offload_activate(struct adapter *adapter)
 	INIT_LIST_HEAD(&t->list_node);
 	t->dev = dev;
 
+	RCU_INIT_POINTER(dev->l2opt, l2td);
 	T3C_DATA(dev) = t;
 	dev->recv = process_rx;
 	dev->neigh_update = t3_l2t_update;
@@ -1294,8 +1296,7 @@ int cxgb3_offload_activate(struct adapter *adapter)
 	return 0;
 
 out_free_l2t:
-	t3_free_l2t(L2DATA(dev));
-	RCU_INIT_POINTER(dev->l2opt, NULL);
+	t3_free_l2t(l2td);
 out_free:
 	kfree(t);
 	return err;
-- 
cgit v0.10.2


From f83331bab149e29fa2c49cf102c0cd8c3f1ce9f9 Mon Sep 17 00:00:00 2001
From: Santosh Rastapur <santosh@chelsio.com>
Date: Tue, 21 May 2013 04:21:29 +0000
Subject: cxgb3: Check and handle the dma mapping errors

This patch adds checks at approprate places whether *dma_map*() call has
succeeded or not.

Signed-off-by: Santosh Rastapur <santosh@chelsio.com>
Reviewed-by: Jay Fenlason <fenlason@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index f12e6b8..2fd773e 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -455,6 +455,11 @@ static int alloc_pg_chunk(struct adapter *adapter, struct sge_fl *q,
 		q->pg_chunk.offset = 0;
 		mapping = pci_map_page(adapter->pdev, q->pg_chunk.page,
 				       0, q->alloc_size, PCI_DMA_FROMDEVICE);
+		if (unlikely(pci_dma_mapping_error(adapter->pdev, mapping))) {
+			__free_pages(q->pg_chunk.page, order);
+			q->pg_chunk.page = NULL;
+			return -EIO;
+		}
 		q->pg_chunk.mapping = mapping;
 	}
 	sd->pg_chunk = q->pg_chunk;
@@ -949,40 +954,75 @@ static inline unsigned int calc_tx_descs(const struct sk_buff *skb)
 	return flits_to_desc(flits);
 }
 
+
+/*	map_skb - map a packet main body and its page fragments
+ *	@pdev: the PCI device
+ *	@skb: the packet
+ *	@addr: placeholder to save the mapped addresses
+ *
+ *	map the main body of an sk_buff and its page fragments, if any.
+ */
+static int map_skb(struct pci_dev *pdev, const struct sk_buff *skb,
+		   dma_addr_t *addr)
+{
+	const skb_frag_t *fp, *end;
+	const struct skb_shared_info *si;
+
+	*addr = pci_map_single(pdev, skb->data, skb_headlen(skb),
+			       PCI_DMA_TODEVICE);
+	if (pci_dma_mapping_error(pdev, *addr))
+		goto out_err;
+
+	si = skb_shinfo(skb);
+	end = &si->frags[si->nr_frags];
+
+	for (fp = si->frags; fp < end; fp++) {
+		*++addr = skb_frag_dma_map(&pdev->dev, fp, 0, skb_frag_size(fp),
+					   DMA_TO_DEVICE);
+		if (pci_dma_mapping_error(pdev, *addr))
+			goto unwind;
+	}
+	return 0;
+
+unwind:
+	while (fp-- > si->frags)
+		dma_unmap_page(&pdev->dev, *--addr, skb_frag_size(fp),
+			       DMA_TO_DEVICE);
+
+	pci_unmap_single(pdev, addr[-1], skb_headlen(skb), PCI_DMA_TODEVICE);
+out_err:
+	return -ENOMEM;
+}
+
 /**
- *	make_sgl - populate a scatter/gather list for a packet
+ *	write_sgl - populate a scatter/gather list for a packet
  *	@skb: the packet
  *	@sgp: the SGL to populate
  *	@start: start address of skb main body data to include in the SGL
  *	@len: length of skb main body data to include in the SGL
- *	@pdev: the PCI device
+ *	@addr: the list of the mapped addresses
  *
- *	Generates a scatter/gather list for the buffers that make up a packet
+ *	Copies the scatter/gather list for the buffers that make up a packet
  *	and returns the SGL size in 8-byte words.  The caller must size the SGL
  *	appropriately.
  */
-static inline unsigned int make_sgl(const struct sk_buff *skb,
+static inline unsigned int write_sgl(const struct sk_buff *skb,
 				    struct sg_ent *sgp, unsigned char *start,
-				    unsigned int len, struct pci_dev *pdev)
+				    unsigned int len, const dma_addr_t *addr)
 {
-	dma_addr_t mapping;
-	unsigned int i, j = 0, nfrags;
+	unsigned int i, j = 0, k = 0, nfrags;
 
 	if (len) {
-		mapping = pci_map_single(pdev, start, len, PCI_DMA_TODEVICE);
 		sgp->len[0] = cpu_to_be32(len);
-		sgp->addr[0] = cpu_to_be64(mapping);
-		j = 1;
+		sgp->addr[j++] = cpu_to_be64(addr[k++]);
 	}
 
 	nfrags = skb_shinfo(skb)->nr_frags;
 	for (i = 0; i < nfrags; i++) {
 		const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 
-		mapping = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
-					   DMA_TO_DEVICE);
 		sgp->len[j] = cpu_to_be32(skb_frag_size(frag));
-		sgp->addr[j] = cpu_to_be64(mapping);
+		sgp->addr[j] = cpu_to_be64(addr[k++]);
 		j ^= 1;
 		if (j == 0)
 			++sgp;
@@ -1138,7 +1178,7 @@ static void write_tx_pkt_wr(struct adapter *adap, struct sk_buff *skb,
 			    const struct port_info *pi,
 			    unsigned int pidx, unsigned int gen,
 			    struct sge_txq *q, unsigned int ndesc,
-			    unsigned int compl)
+			    unsigned int compl, const dma_addr_t *addr)
 {
 	unsigned int flits, sgl_flits, cntrl, tso_info;
 	struct sg_ent *sgp, sgl[MAX_SKB_FRAGS / 2 + 1];
@@ -1196,7 +1236,7 @@ static void write_tx_pkt_wr(struct adapter *adap, struct sk_buff *skb,
 	}
 
 	sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
-	sgl_flits = make_sgl(skb, sgp, skb->data, skb_headlen(skb), adap->pdev);
+	sgl_flits = write_sgl(skb, sgp, skb->data, skb_headlen(skb), addr);
 
 	write_wr_hdr_sgl(ndesc, skb, d, pidx, q, sgl, flits, sgl_flits, gen,
 			 htonl(V_WR_OP(FW_WROPCODE_TUNNEL_TX_PKT) | compl),
@@ -1227,6 +1267,7 @@ netdev_tx_t t3_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct netdev_queue *txq;
 	struct sge_qset *qs;
 	struct sge_txq *q;
+	dma_addr_t addr[MAX_SKB_FRAGS + 1];
 
 	/*
 	 * The chip min packet length is 9 octets but play safe and reject
@@ -1255,6 +1296,11 @@ netdev_tx_t t3_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 		return NETDEV_TX_BUSY;
 	}
 
+	if (unlikely(map_skb(adap->pdev, skb, addr) < 0)) {
+		dev_kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+
 	q->in_use += ndesc;
 	if (unlikely(credits - ndesc < q->stop_thres)) {
 		t3_stop_tx_queue(txq, qs, q);
@@ -1312,7 +1358,7 @@ netdev_tx_t t3_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (likely(!skb_shared(skb)))
 		skb_orphan(skb);
 
-	write_tx_pkt_wr(adap, skb, pi, pidx, gen, q, ndesc, compl);
+	write_tx_pkt_wr(adap, skb, pi, pidx, gen, q, ndesc, compl, addr);
 	check_ring_tx_db(adap, q);
 	return NETDEV_TX_OK;
 }
@@ -1578,7 +1624,8 @@ static void setup_deferred_unmapping(struct sk_buff *skb, struct pci_dev *pdev,
  */
 static void write_ofld_wr(struct adapter *adap, struct sk_buff *skb,
 			  struct sge_txq *q, unsigned int pidx,
-			  unsigned int gen, unsigned int ndesc)
+			  unsigned int gen, unsigned int ndesc,
+			  const dma_addr_t *addr)
 {
 	unsigned int sgl_flits, flits;
 	struct work_request_hdr *from;
@@ -1599,9 +1646,9 @@ static void write_ofld_wr(struct adapter *adap, struct sk_buff *skb,
 
 	flits = skb_transport_offset(skb) / 8;
 	sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
-	sgl_flits = make_sgl(skb, sgp, skb_transport_header(skb),
+	sgl_flits = write_sgl(skb, sgp, skb_transport_header(skb),
 			     skb->tail - skb->transport_header,
-			     adap->pdev);
+			     addr);
 	if (need_skb_unmap()) {
 		setup_deferred_unmapping(skb, adap->pdev, sgp, sgl_flits);
 		skb->destructor = deferred_unmap_destructor;
@@ -1659,6 +1706,11 @@ again:	reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
 		goto again;
 	}
 
+	if (map_skb(adap->pdev, skb, (dma_addr_t *)skb->head)) {
+		spin_unlock(&q->lock);
+		return NET_XMIT_SUCCESS;
+	}
+
 	gen = q->gen;
 	q->in_use += ndesc;
 	pidx = q->pidx;
@@ -1669,7 +1721,7 @@ again:	reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
 	}
 	spin_unlock(&q->lock);
 
-	write_ofld_wr(adap, skb, q, pidx, gen, ndesc);
+	write_ofld_wr(adap, skb, q, pidx, gen, ndesc, (dma_addr_t *)skb->head);
 	check_ring_tx_db(adap, q);
 	return NET_XMIT_SUCCESS;
 }
@@ -1687,6 +1739,7 @@ static void restart_offloadq(unsigned long data)
 	struct sge_txq *q = &qs->txq[TXQ_OFLD];
 	const struct port_info *pi = netdev_priv(qs->netdev);
 	struct adapter *adap = pi->adapter;
+	unsigned int written = 0;
 
 	spin_lock(&q->lock);
 again:	reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
@@ -1706,10 +1759,14 @@ again:	reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
 			break;
 		}
 
+		if (map_skb(adap->pdev, skb, (dma_addr_t *)skb->head))
+			break;
+
 		gen = q->gen;
 		q->in_use += ndesc;
 		pidx = q->pidx;
 		q->pidx += ndesc;
+		written += ndesc;
 		if (q->pidx >= q->size) {
 			q->pidx -= q->size;
 			q->gen ^= 1;
@@ -1717,7 +1774,8 @@ again:	reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
 		__skb_unlink(skb, &q->sendq);
 		spin_unlock(&q->lock);
 
-		write_ofld_wr(adap, skb, q, pidx, gen, ndesc);
+		write_ofld_wr(adap, skb, q, pidx, gen, ndesc,
+			     (dma_addr_t *)skb->head);
 		spin_lock(&q->lock);
 	}
 	spin_unlock(&q->lock);
@@ -1727,8 +1785,9 @@ again:	reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
 	set_bit(TXQ_LAST_PKT_DB, &q->flags);
 #endif
 	wmb();
-	t3_write_reg(adap, A_SG_KDOORBELL,
-		     F_SELEGRCNTX | V_EGRCNTX(q->cntxt_id));
+	if (likely(written))
+		t3_write_reg(adap, A_SG_KDOORBELL,
+			     F_SELEGRCNTX | V_EGRCNTX(q->cntxt_id));
 }
 
 /**
-- 
cgit v0.10.2


From ffed61e6fd3a405e79f4d267f22acaee3267fb37 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 21 May 2013 05:44:26 +0000
Subject: fec: Use DIV_ROUND_UP macro

Use the standard DIV_ROUND_UP macro in order to provide better readability.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 2f4b3e0..6b5dc58 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -242,7 +242,7 @@ static void *swap_buffer(void *bufaddr, int len)
 	int i;
 	unsigned int *buf = bufaddr;
 
-	for (i = 0; i < (len + 3) / 4; i++, buf++)
+	for (i = 0; i < DIV_ROUND_UP(len, 4); i++, buf++)
 		*buf = cpu_to_be32(*buf);
 
 	return bufaddr;
-- 
cgit v0.10.2


From e43ac79a4bc6ca90de4ba10983b4ca39cd215b4b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 21 May 2013 08:16:46 +0000
Subject: sch_tbf: segment too big GSO packets

If a GSO packet has a length above tbf burst limit, the packet
is currently silently dropped.

Current way to handle this is to set the device in non GSO/TSO mode, or
setting high bursts, and its sub optimal.

We can actually segment too big GSO packets, and send individual
segments as tbf parameters allow, allowing for better interoperability.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index c8388f3..38008b0 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -116,14 +116,57 @@ struct tbf_sched_data {
 	struct qdisc_watchdog watchdog;	/* Watchdog timer */
 };
 
+
+/* GSO packet is too big, segment it so that tbf can transmit
+ * each segment in time
+ */
+static int tbf_segment(struct sk_buff *skb, struct Qdisc *sch)
+{
+	struct tbf_sched_data *q = qdisc_priv(sch);
+	struct sk_buff *segs, *nskb;
+	netdev_features_t features = netif_skb_features(skb);
+	int ret, nb;
+
+	segs = skb_gso_segment(skb, features & ~NETIF_F_GSO_MASK);
+
+	if (IS_ERR_OR_NULL(segs))
+		return qdisc_reshape_fail(skb, sch);
+
+	nb = 0;
+	while (segs) {
+		nskb = segs->next;
+		segs->next = NULL;
+		if (likely(segs->len <= q->max_size)) {
+			qdisc_skb_cb(segs)->pkt_len = segs->len;
+			ret = qdisc_enqueue(segs, q->qdisc);
+		} else {
+			ret = qdisc_reshape_fail(skb, sch);
+		}
+		if (ret != NET_XMIT_SUCCESS) {
+			if (net_xmit_drop_count(ret))
+				sch->qstats.drops++;
+		} else {
+			nb++;
+		}
+		segs = nskb;
+	}
+	sch->q.qlen += nb;
+	if (nb > 1)
+		qdisc_tree_decrease_qlen(sch, 1 - nb);
+	consume_skb(skb);
+	return nb > 0 ? NET_XMIT_SUCCESS : NET_XMIT_DROP;
+}
+
 static int tbf_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
 	struct tbf_sched_data *q = qdisc_priv(sch);
 	int ret;
 
-	if (qdisc_pkt_len(skb) > q->max_size)
+	if (qdisc_pkt_len(skb) > q->max_size) {
+		if (skb_is_gso(skb))
+			return tbf_segment(skb, sch);
 		return qdisc_reshape_fail(skb, sch);
-
+	}
 	ret = qdisc_enqueue(skb, q->qdisc);
 	if (ret != NET_XMIT_SUCCESS) {
 		if (net_xmit_drop_count(ret))
-- 
cgit v0.10.2


From 7996c799ae329fab1b9c8d475fd08883f0499ed9 Mon Sep 17 00:00:00 2001
From: Cong Wang <xiyou.wangcong@gmail.com>
Date: Wed, 22 May 2013 05:41:06 +0000
Subject: ipv6: use ipv6_addr_any() helper

ipv6_addr_any() is a faster way to determine if an addr
is ipv6 any addr, no need to compute the addr type.

Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index d684d23..e052696 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3846,7 +3846,7 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa,
 		valid = INFINITY_LIFE_TIME;
 	}
 
-	if (ipv6_addr_type(&ifa->peer_addr) != IPV6_ADDR_ANY) {
+	if (!ipv6_addr_any(&ifa->peer_addr)) {
 		if (nla_put(skb, IFA_LOCAL, 16, &ifa->addr) < 0 ||
 		    nla_put(skb, IFA_ADDRESS, 16, &ifa->peer_addr) < 0)
 			goto error;
@@ -4579,7 +4579,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 			ip6_ins_rt(ifp->rt);
 		if (ifp->idev->cnf.forwarding)
 			addrconf_join_anycast(ifp);
-		if (ipv6_addr_type(&ifp->peer_addr) != IPV6_ADDR_ANY)
+		if (!ipv6_addr_any(&ifp->peer_addr))
 			addrconf_prefix_route(&ifp->peer_addr, 128,
 					      ifp->idev->dev, 0, 0);
 		break;
@@ -4587,7 +4587,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 		if (ifp->idev->cnf.forwarding)
 			addrconf_leave_anycast(ifp);
 		addrconf_leave_solict(ifp->idev, &ifp->addr);
-		if (ipv6_addr_type(&ifp->peer_addr) != IPV6_ADDR_ANY) {
+		if (!ipv6_addr_any(&ifp->peer_addr)) {
 			struct rt6_info *rt;
 			struct net_device *dev = ifp->idev->dev;
 
-- 
cgit v0.10.2


From 8892475386e819aa50856947948c546ccc964d96 Mon Sep 17 00:00:00 2001
From: Cong Wang <xiyou.wangcong@gmail.com>
Date: Wed, 22 May 2013 05:52:22 +0000
Subject: ipv6: use ipv6_addr_scope() helper

ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK could be replaced
by ipv6_addr_scope(), which is slightly faster.

Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e052696..432e084 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1126,8 +1126,7 @@ retry:
 
 	ift = !max_addresses ||
 	      ipv6_count_addresses(idev) < max_addresses ?
-		ipv6_add_addr(idev, &addr, tmp_plen,
-			      ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK,
+		ipv6_add_addr(idev, &addr, tmp_plen, ipv6_addr_scope(&addr),
 			      addr_flags) : NULL;
 	if (IS_ERR_OR_NULL(ift)) {
 		in6_ifa_put(ifp);
-- 
cgit v0.10.2


From 27e7190efd5b2f728686a8293af6d9bd34c4e562 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 22 May 2013 11:10:57 +0000
Subject: netfilter: xt_CT: optimize XT_CT_NOTRACK

The percpu untracked ct are not currently used for XT_CT_NOTRACK.

xt_ct_tg_check()/xt_ct_target() provides a single ct.

Thats not optimal as the ct->ct_general.use cache line will bounce among
cpus.

Use the intended [1] thing : xt_ct_target() should select the percpu
object.

[1] Refs :
commit 5bfddbd46a95c97 ("netfilter: nf_conntrack: IPS_UNTRACKED bit")
commit b3c5163fe0193a7 ("netfilter: nf_conntrack: per_cpu untracking")

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c
index a60261c..da35ac0 100644
--- a/net/netfilter/xt_CT.c
+++ b/net/netfilter/xt_CT.c
@@ -26,6 +26,9 @@ static inline int xt_ct_target(struct sk_buff *skb, struct nf_conn *ct)
 	if (skb->nfct != NULL)
 		return XT_CONTINUE;
 
+	/* special case the untracked ct : we want the percpu object */
+	if (!ct)
+		ct = nf_ct_untracked_get();
 	atomic_inc(&ct->ct_general.use);
 	skb->nfct = &ct->ct_general;
 	skb->nfctinfo = IP_CT_NEW;
@@ -186,8 +189,7 @@ static int xt_ct_tg_check(const struct xt_tgchk_param *par,
 	int ret = -EOPNOTSUPP;
 
 	if (info->flags & XT_CT_NOTRACK) {
-		ct = nf_ct_untracked_get();
-		atomic_inc(&ct->ct_general.use);
+		ct = NULL;
 		goto out;
 	}
 
@@ -311,7 +313,7 @@ static void xt_ct_tg_destroy(const struct xt_tgdtor_param *par,
 	struct nf_conn *ct = info->ct;
 	struct nf_conn_help *help;
 
-	if (!nf_ct_is_untracked(ct)) {
+	if (ct && !nf_ct_is_untracked(ct)) {
 		help = nfct_help(ct);
 		if (help)
 			module_put(help->helper->me);
@@ -319,8 +321,8 @@ static void xt_ct_tg_destroy(const struct xt_tgdtor_param *par,
 		nf_ct_l3proto_module_put(par->family);
 
 		xt_ct_destroy_timeout(ct);
+		nf_ct_put(info->ct);
 	}
-	nf_ct_put(info->ct);
 }
 
 static void xt_ct_tg_destroy_v0(const struct xt_tgdtor_param *par)
-- 
cgit v0.10.2


From 00028aa37098168048728acc32ab0206687f2920 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 22 May 2013 11:01:06 +0000
Subject: netfilter: xt_socket: use IP early demux

With IP early demux added in linux-3.6, we perform TCP lookup in IP
layer before iptables hooks.

We can avoid doing a second lookup in xt_socket.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 63b2bdb..0270424 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -107,7 +107,7 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par,
 {
 	const struct iphdr *iph = ip_hdr(skb);
 	struct udphdr _hdr, *hp = NULL;
-	struct sock *sk;
+	struct sock *sk = skb->sk;
 	__be32 uninitialized_var(daddr), uninitialized_var(saddr);
 	__be16 uninitialized_var(dport), uninitialized_var(sport);
 	u8 uninitialized_var(protocol);
@@ -155,9 +155,11 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par,
 	}
 #endif
 
-	sk = nf_tproxy_get_sock_v4(dev_net(skb->dev), protocol,
-				   saddr, daddr, sport, dport, par->in, NFT_LOOKUP_ANY);
-	if (sk != NULL) {
+	if (!sk)
+		sk = nf_tproxy_get_sock_v4(dev_net(skb->dev), protocol,
+					   saddr, daddr, sport, dport,
+					   par->in, NFT_LOOKUP_ANY);
+	if (sk) {
 		bool wildcard;
 		bool transparent = true;
 
@@ -173,7 +175,8 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par,
 				       (sk->sk_state == TCP_TIME_WAIT &&
 					inet_twsk(sk)->tw_transparent));
 
-		xt_socket_put_sk(sk);
+		if (sk != skb->sk)
+			xt_socket_put_sk(sk);
 
 		if (wildcard || !transparent)
 			sk = NULL;
@@ -260,7 +263,7 @@ socket_mt6_v1(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	struct ipv6hdr *iph = ipv6_hdr(skb);
 	struct udphdr _hdr, *hp = NULL;
-	struct sock *sk;
+	struct sock *sk = skb->sk;
 	struct in6_addr *daddr = NULL, *saddr = NULL;
 	__be16 uninitialized_var(dport), uninitialized_var(sport);
 	int thoff = 0, uninitialized_var(tproto);
@@ -291,9 +294,11 @@ socket_mt6_v1(const struct sk_buff *skb, struct xt_action_param *par)
 		return false;
 	}
 
-	sk = nf_tproxy_get_sock_v6(dev_net(skb->dev), tproto,
-				   saddr, daddr, sport, dport, par->in, NFT_LOOKUP_ANY);
-	if (sk != NULL) {
+	if (!sk)
+		sk = nf_tproxy_get_sock_v6(dev_net(skb->dev), tproto,
+					   saddr, daddr, sport, dport,
+					   par->in, NFT_LOOKUP_ANY);
+	if (sk) {
 		bool wildcard;
 		bool transparent = true;
 
@@ -309,7 +314,8 @@ socket_mt6_v1(const struct sk_buff *skb, struct xt_action_param *par)
 				       (sk->sk_state == TCP_TIME_WAIT &&
 					inet_twsk(sk)->tw_transparent));
 
-		xt_socket_put_sk(sk);
+		if (sk != skb->sk)
+			xt_socket_put_sk(sk);
 
 		if (wildcard || !transparent)
 			sk = NULL;
-- 
cgit v0.10.2


From 8bc14d25ffb9dfc242d3a877bb4fe683adb27692 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Thu, 16 May 2013 22:07:22 +0000
Subject: bridge: netfilter: using strlcpy() instead of strncpy()

'name' has already set all zero when it is defined, so not need let
strncpy() to pad it again.

'name' is a string, better always let is NUL terminated, so use
strlcpy() instead of strncpy().

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Bart De Schuymer <bdschuym@pandora.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 3d110c4..ac78024 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1339,7 +1339,7 @@ static inline int ebt_make_matchname(const struct ebt_entry_match *m,
 
 	/* ebtables expects 32 bytes long names but xt_match names are 29 bytes
 	   long. Copy 29 bytes and fill remaining bytes with zeroes. */
-	strncpy(name, m->u.match->name, sizeof(name));
+	strlcpy(name, m->u.match->name, sizeof(name));
 	if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
@@ -1351,7 +1351,7 @@ static inline int ebt_make_watchername(const struct ebt_entry_watcher *w,
 	char __user *hlp = ubase + ((char *)w - base);
 	char name[EBT_FUNCTION_MAXNAMELEN] = {};
 
-	strncpy(name, w->u.watcher->name, sizeof(name));
+	strlcpy(name, w->u.watcher->name, sizeof(name));
 	if (copy_to_user(hlp , name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
@@ -1377,7 +1377,7 @@ ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase)
 	ret = EBT_WATCHER_ITERATE(e, ebt_make_watchername, base, ubase);
 	if (ret != 0)
 		return ret;
-	strncpy(name, t->u.target->name, sizeof(name));
+	strlcpy(name, t->u.target->name, sizeof(name));
 	if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
-- 
cgit v0.10.2


From 6d11cfdba52af08b889fd6d3ee4212930493eb38 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 22 May 2013 22:42:36 +0000
Subject: netfilter: don't panic on error while walking through the init path

Don't panic if we hit an error while adding the nf_log or pernet
netfilter support, just bail out.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Gao feng <gaofeng@cn.fujitsu.com>

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 0060fde..de70f7b 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -35,7 +35,7 @@ static inline void nf_inet_addr_mask(const union nf_inet_addr *a1,
 	result->all[3] = a1->all[3] & mask->all[3];
 }
 
-extern void netfilter_init(void);
+extern int netfilter_init(void);
 
 /* Largest hook number + 1 */
 #define NF_MAX_HOOKS 8
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 07c865a..300539d 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -302,17 +302,26 @@ static struct pernet_operations netfilter_net_ops = {
 	.exit = netfilter_net_exit,
 };
 
-void __init netfilter_init(void)
+int __init netfilter_init(void)
 {
-	int i, h;
+	int i, h, ret;
+
 	for (i = 0; i < ARRAY_SIZE(nf_hooks); i++) {
 		for (h = 0; h < NF_MAX_HOOKS; h++)
 			INIT_LIST_HEAD(&nf_hooks[i][h]);
 	}
 
-	if (register_pernet_subsys(&netfilter_net_ops) < 0)
-		panic("cannot create netfilter proc entry");
+	ret = register_pernet_subsys(&netfilter_net_ops);
+	if (ret < 0)
+		goto err;
+
+	ret = netfilter_log_init();
+	if (ret < 0)
+		goto err_pernet;
 
-	if (netfilter_log_init() < 0)
-		panic("cannot initialize nf_log");
+	return 0;
+err_pernet:
+	unregister_pernet_subsys(&netfilter_net_ops);
+err:
+	return ret;
 }
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 388656d..bd5474a 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -368,10 +368,7 @@ static int __net_init nf_log_net_init(struct net *net)
 	return 0;
 
 out_sysctl:
-	/* For init_net: errors will trigger panic, don't unroll on error. */
-	if (!net_eq(net, &init_net))
-		remove_proc_entry("nf_log", net->nf.proc_netfilter);
-
+	remove_proc_entry("nf_log", net->nf.proc_netfilter);
 	return ret;
 }
 
diff --git a/net/socket.c b/net/socket.c
index 6b94633..734194d 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -2612,7 +2612,9 @@ static int __init sock_init(void)
 	 */
 
 #ifdef CONFIG_NETFILTER
-	netfilter_init();
+	err = netfilter_init();
+	if (err)
+		goto out;
 #endif
 
 #ifdef CONFIG_NETWORK_PHY_TIMESTAMPING
-- 
cgit v0.10.2


From de94c4591bd606729af1b913d6e98c6c449e42df Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 22 May 2013 22:42:37 +0000
Subject: netfilter: {ipt,ebt}_ULOG: rise warning on deprecation

This target has been superseded by NFLOG. Spot a warning
so we prepare removal in a couple of years.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Gao feng <gaofeng@cn.fujitsu.com>

diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h
index c24060e..02fe40f 100644
--- a/include/net/netns/x_tables.h
+++ b/include/net/netns/x_tables.h
@@ -15,5 +15,11 @@ struct netns_xt {
 	struct ebt_table *frame_filter;
 	struct ebt_table *frame_nat;
 #endif
+#if IS_ENABLED(CONFIG_IP_NF_TARGET_ULOG)
+	bool ulog_warn_deprecated;
+#endif
+#if IS_ENABLED(CONFIG_BRIDGE_EBT_ULOG)
+	bool ebt_ulog_warn_deprecated;
+#endif
 };
 #endif
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index fc1905c..2ec6c19 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -267,6 +267,12 @@ static int ebt_ulog_tg_check(const struct xt_tgchk_param *par)
 {
 	struct ebt_ulog_info *uloginfo = par->targinfo;
 
+	if (!par->net->xt.ebt_ulog_warn_deprecated) {
+		pr_info("ebt_ulog is deprecated and it will be removed soon, "
+			"use ebt_nflog instead\n");
+		par->net->xt.ebt_ulog_warn_deprecated = true;
+	}
+
 	if (uloginfo->nlgroup > 31)
 		return -EINVAL;
 
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index e7916c1..4e90280 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -111,7 +111,7 @@ config IP_NF_TARGET_REJECT
 	  To compile it as a module, choose M here.  If unsure, say N.
 
 config IP_NF_TARGET_ULOG
-	tristate "ULOG target support"
+	tristate "ULOG target support (obsolete)"
 	default m if NETFILTER_ADVANCED=n
 	---help---
 
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index f8a222cb..c1953d0 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -325,6 +325,12 @@ static int ulog_tg_check(const struct xt_tgchk_param *par)
 {
 	const struct ipt_ulog_info *loginfo = par->targinfo;
 
+	if (!par->net->xt.ulog_warn_deprecated) {
+		pr_info("ULOG is deprecated and it will be removed soon, "
+			"use NFLOG instead\n");
+		par->net->xt.ulog_warn_deprecated = true;
+	}
+
 	if (loginfo->prefix[sizeof(loginfo->prefix) - 1] != '\0') {
 		pr_debug("prefix not null-terminated\n");
 		return -EINVAL;
-- 
cgit v0.10.2


From f6f3c437d09e2f62533034e67bfb4385191e992c Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Wed, 22 May 2013 14:50:31 +0900
Subject: sched: add cond_resched_rcu() helper

This is intended for use in loops which read data protected by RCU and may
have a large number of iterations.  Such an example is dumping the list of
connections known to IPVS: ip_vs_conn_array() and ip_vs_conn_seq_next().

The benefits are for CONFIG_PREEMPT_RCU=y where we save CPU cycles
by moving rcu_read_lock and rcu_read_unlock out of large loops
but still allowing the current task to be preempted after every
loop iteration for the CONFIG_PREEMPT_RCU=n case.

The call to cond_resched() is not needed when CONFIG_PREEMPT_RCU=y.
Thanks to Paul E. McKenney for explaining this and for the
final version that checks the context with CONFIG_DEBUG_ATOMIC_SLEEP=y
for all possible configurations.

The function can be empty in the CONFIG_PREEMPT_RCU case,
rcu_read_lock and rcu_read_unlock are not needed in this case
because the task can be preempted on indication from scheduler.
Thanks to Peter Zijlstra for catching this and for his help
in trying a solution that changes __might_sleep.

Initial cond_resched_rcu_lock() function suggested by Eric Dumazet.

Tested-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 178a8d9..4ff8da1 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2444,6 +2444,15 @@ extern int __cond_resched_softirq(void);
 	__cond_resched_softirq();					\
 })
 
+static inline void cond_resched_rcu(void)
+{
+#if defined(CONFIG_DEBUG_ATOMIC_SLEEP) || !defined(CONFIG_PREEMPT_RCU)
+	rcu_read_unlock();
+	cond_resched();
+	rcu_read_lock();
+#endif
+}
+
 /*
  * Does a critical section need to be broken due to another
  * task waiting?: (technically does not depend on CONFIG_PREEMPT,
-- 
cgit v0.10.2


From a38e5e230e3f4e7bc9195d3e7a81567c888257ca Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Wed, 22 May 2013 14:50:32 +0900
Subject: ipvs: use cond_resched_rcu() helper when walking connections

This avoids the situation where walking of a large number of connections
may prevent scheduling for a long time while also avoiding excessive
calls to rcu_read_unlock() and rcu_read_lock().

Note that in the case of !CONFIG_PREEMPT_RCU this will
add a call to cond_resched().

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index a083bda..c8c52a9 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -975,8 +975,7 @@ static void *ip_vs_conn_array(struct seq_file *seq, loff_t pos)
 				return cp;
 			}
 		}
-		rcu_read_unlock();
-		rcu_read_lock();
+		cond_resched_rcu();
 	}
 
 	return NULL;
@@ -1015,8 +1014,7 @@ static void *ip_vs_conn_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 			iter->l = &ip_vs_conn_tab[idx];
 			return cp;
 		}
-		rcu_read_unlock();
-		rcu_read_lock();
+		cond_resched_rcu();
 	}
 	iter->l = NULL;
 	return NULL;
@@ -1206,17 +1204,13 @@ void ip_vs_random_dropentry(struct net *net)
 	int idx;
 	struct ip_vs_conn *cp, *cp_c;
 
+	rcu_read_lock();
 	/*
 	 * Randomly scan 1/32 of the whole table every second
 	 */
 	for (idx = 0; idx < (ip_vs_conn_tab_size>>5); idx++) {
 		unsigned int hash = net_random() & ip_vs_conn_tab_mask;
 
-		/*
-		 *  Lock is actually needed in this loop.
-		 */
-		rcu_read_lock();
-
 		hlist_for_each_entry_rcu(cp, &ip_vs_conn_tab[hash], c_list) {
 			if (cp->flags & IP_VS_CONN_F_TEMPLATE)
 				/* connection template */
@@ -1252,8 +1246,9 @@ void ip_vs_random_dropentry(struct net *net)
 				__ip_vs_conn_put(cp);
 			}
 		}
-		rcu_read_unlock();
+		cond_resched_rcu();
 	}
+	rcu_read_unlock();
 }
 
 
@@ -1267,11 +1262,8 @@ static void ip_vs_conn_flush(struct net *net)
 	struct netns_ipvs *ipvs = net_ipvs(net);
 
 flush_again:
+	rcu_read_lock();
 	for (idx = 0; idx < ip_vs_conn_tab_size; idx++) {
-		/*
-		 *  Lock is actually needed in this loop.
-		 */
-		rcu_read_lock();
 
 		hlist_for_each_entry_rcu(cp, &ip_vs_conn_tab[idx], c_list) {
 			if (!ip_vs_conn_net_eq(cp, net))
@@ -1286,8 +1278,9 @@ flush_again:
 				__ip_vs_conn_put(cp);
 			}
 		}
-		rcu_read_unlock();
+		cond_resched_rcu();
 	}
+	rcu_read_unlock();
 
 	/* the counter may be not NULL, because maybe some conn entries
 	   are run by slow timer handler or unhashed but still referred */
-- 
cgit v0.10.2


From eebfc9394ee31b3ef162692c0cd483c1318a4395 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 23 May 2013 22:17:50 +0200
Subject: iwlwifi: mvm: remove P2P_DEVICE support

Unfortunately, advertising P2P_DEVICE support was a little
premature, a number of issues came up in testing and have
been fixed for 3.10. Rather than try to backport all the
different fixes, disable P2P_DEVICE support in the drivers
using it. For iwlmvm that implies disabling P2P completely
as it can't support P2P operation w/o P2P Device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index dd158ec..11dc7df 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -84,15 +84,6 @@ static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
 		.types = BIT(NL80211_IFTYPE_STATION) |
 			BIT(NL80211_IFTYPE_AP),
 	},
-	{
-		.max = 1,
-		.types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
-			BIT(NL80211_IFTYPE_P2P_GO),
-	},
-	{
-		.max = 1,
-		.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
-	},
 };
 
 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
@@ -161,10 +152,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	hw->chanctx_data_size = sizeof(struct iwl_mvm_phy_ctxt);
 
 	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
-		BIT(NL80211_IFTYPE_P2P_CLIENT) |
-		BIT(NL80211_IFTYPE_AP) |
-		BIT(NL80211_IFTYPE_P2P_GO) |
-		BIT(NL80211_IFTYPE_P2P_DEVICE);
+		BIT(NL80211_IFTYPE_AP);
 
 	hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
 			    WIPHY_FLAG_DISABLE_BEACON_HINTS |
-- 
cgit v0.10.2


From e3ee68b7b049c5bbfcb78a179c00c373a38ed58c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 23 May 2013 22:17:50 +0200
Subject: mac80211_hwsim: remove P2P_DEVICE support

Unfortunately, advertising P2P_DEVICE support was a little
premature, a number of issues came up in testing and have
been fixed for 3.10. Rather than try to backport all the
different fixes, disable P2P_DEVICE support in the drivers
using it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index cb34c78..69bbf6f 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2169,7 +2169,6 @@ static const struct ieee80211_iface_limit hwsim_if_limits[] = {
 #endif
 				 BIT(NL80211_IFTYPE_AP) |
 				 BIT(NL80211_IFTYPE_P2P_GO) },
-	{ .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
 };
 
 static struct ieee80211_iface_combination hwsim_if_comb = {
@@ -2295,8 +2294,7 @@ static int __init init_mac80211_hwsim(void)
 			BIT(NL80211_IFTYPE_P2P_CLIENT) |
 			BIT(NL80211_IFTYPE_P2P_GO) |
 			BIT(NL80211_IFTYPE_ADHOC) |
-			BIT(NL80211_IFTYPE_MESH_POINT) |
-			BIT(NL80211_IFTYPE_P2P_DEVICE);
+			BIT(NL80211_IFTYPE_MESH_POINT);
 
 		hw->flags = IEEE80211_HW_MFP_CAPABLE |
 			    IEEE80211_HW_SIGNAL_DBM |
-- 
cgit v0.10.2


From 5f38a11274f0e74ec0e499bc779d355510b39790 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 23 May 2013 23:09:56 +0200
Subject: mac80211: assign AP_VLAN hw queues correctly

A lot of code in mac80211 assumes that the hw queues are
set up correctly for all interfaces (except for monitor)
but this isn't true for AP_VLAN interfaces. Fix this by
copying the AP master configuration when an AP VLAN is
brought up, after this the AP interface can't change its
configuration any more and needs to be brought down to
change it, which also forces AP_VLAN interfaces down, so
just copying in open() is sufficient.

Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 68f51c3..00e2238 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -474,6 +474,9 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 			master->control_port_protocol;
 		sdata->control_port_no_encrypt =
 			master->control_port_no_encrypt;
+		sdata->vif.cab_queue = master->vif.cab_queue;
+		memcpy(sdata->vif.hw_queue, master->vif.hw_queue,
+		       sizeof(sdata->vif.hw_queue));
 		break;
 		}
 	case NL80211_IFTYPE_AP:
-- 
cgit v0.10.2


From 4c8a9d4bfaf7dbc7d2168494904d79d22cc01db7 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 24 May 2013 01:06:09 +0200
Subject: mac80211: close AP_VLAN interfaces before unregistering all

Since Eric's commit efe117ab8 ("Speedup ieee80211_remove_interfaces")
there's a bug in mac80211 when it unregisters with AP_VLAN interfaces
up. If the AP_VLAN interface was registered after the AP it belongs
to (which is the typical case) and then we get into this code path,
unregister_netdevice_many() will crash because it isn't prepared to
deal with interfaces being closed in the middle of it. Exactly this
happens though, because we iterate the list, find the AP master this
AP_VLAN belongs to and dev_close() the dependent VLANs. After this,
unregister_netdevice_many() won't pick up the fact that the AP_VLAN
is already down and will do it again, causing a crash.

Cc: stable@vger.kernel.org [2.6.33+]
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 00e2238..ceef644 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1703,6 +1703,15 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 
 	ASSERT_RTNL();
 
+	/*
+	 * Close all AP_VLAN interfaces first, as otherwise they
+	 * might be closed while the AP interface they belong to
+	 * is closed, causing unregister_netdevice_many() to crash.
+	 */
+	list_for_each_entry(sdata, &local->interfaces, list)
+		if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+			dev_close(sdata->dev);
+
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
 		list_del(&sdata->list);
-- 
cgit v0.10.2


From e1f00a69ec26e3eb9847c61c665b8fb3f0c6b477 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Wed, 22 May 2013 06:34:45 +0000
Subject: xen-netback: split event channels support for Xen backend driver

Netback and netfront only use one event channel to do TX / RX notification,
which may cause unnecessary wake-up of processing routines. This patch adds a
new feature called feature-split-event-channels to netback, enabling it to
handle TX and RX events separately.

Netback will use tx_irq to notify guest for TX completion, rx_irq for RX
notification.

If frontend doesn't support this feature, tx_irq equals to rx_irq.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index 6102a6c..8a4d77e 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -57,8 +57,12 @@ struct xenvif {
 
 	u8               fe_dev_addr[6];
 
-	/* Physical parameters of the comms window. */
-	unsigned int     irq;
+	/* When feature-split-event-channels = 0, tx_irq = rx_irq. */
+	unsigned int tx_irq;
+	unsigned int rx_irq;
+	/* Only used when feature-split-event-channels = 1 */
+	char tx_irq_name[IFNAMSIZ+4]; /* DEVNAME-tx */
+	char rx_irq_name[IFNAMSIZ+4]; /* DEVNAME-rx */
 
 	/* List of frontends to notify after a batch of frames sent. */
 	struct list_head notify_list;
@@ -113,7 +117,8 @@ struct xenvif *xenvif_alloc(struct device *parent,
 			    unsigned int handle);
 
 int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
-		   unsigned long rx_ring_ref, unsigned int evtchn);
+		   unsigned long rx_ring_ref, unsigned int tx_evtchn,
+		   unsigned int rx_evtchn);
 void xenvif_disconnect(struct xenvif *vif);
 
 void xenvif_get(struct xenvif *vif);
@@ -158,4 +163,6 @@ void xenvif_carrier_off(struct xenvif *vif);
 /* Returns number of ring slots required to send an skb to the frontend */
 unsigned int xen_netbk_count_skb_slots(struct xenvif *vif, struct sk_buff *skb);
 
+extern bool separate_tx_rx_irq;
+
 #endif /* __XEN_NETBACK__COMMON_H__ */
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 82202c2..087d2db 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -60,21 +60,39 @@ static int xenvif_rx_schedulable(struct xenvif *vif)
 	return xenvif_schedulable(vif) && !xen_netbk_rx_ring_full(vif);
 }
 
-static irqreturn_t xenvif_interrupt(int irq, void *dev_id)
+static irqreturn_t xenvif_tx_interrupt(int irq, void *dev_id)
 {
 	struct xenvif *vif = dev_id;
 
 	if (vif->netbk == NULL)
-		return IRQ_NONE;
+		return IRQ_HANDLED;
 
 	xen_netbk_schedule_xenvif(vif);
 
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t xenvif_rx_interrupt(int irq, void *dev_id)
+{
+	struct xenvif *vif = dev_id;
+
+	if (vif->netbk == NULL)
+		return IRQ_HANDLED;
+
 	if (xenvif_rx_schedulable(vif))
 		netif_wake_queue(vif->dev);
 
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t xenvif_interrupt(int irq, void *dev_id)
+{
+	xenvif_tx_interrupt(irq, dev_id);
+	xenvif_rx_interrupt(irq, dev_id);
+
+	return IRQ_HANDLED;
+}
+
 static int xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct xenvif *vif = netdev_priv(dev);
@@ -125,13 +143,17 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev)
 static void xenvif_up(struct xenvif *vif)
 {
 	xen_netbk_add_xenvif(vif);
-	enable_irq(vif->irq);
+	enable_irq(vif->tx_irq);
+	if (vif->tx_irq != vif->rx_irq)
+		enable_irq(vif->rx_irq);
 	xen_netbk_check_rx_xenvif(vif);
 }
 
 static void xenvif_down(struct xenvif *vif)
 {
-	disable_irq(vif->irq);
+	disable_irq(vif->tx_irq);
+	if (vif->tx_irq != vif->rx_irq)
+		disable_irq(vif->rx_irq);
 	del_timer_sync(&vif->credit_timeout);
 	xen_netbk_deschedule_xenvif(vif);
 	xen_netbk_remove_xenvif(vif);
@@ -308,12 +330,13 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 }
 
 int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
-		   unsigned long rx_ring_ref, unsigned int evtchn)
+		   unsigned long rx_ring_ref, unsigned int tx_evtchn,
+		   unsigned int rx_evtchn)
 {
 	int err = -ENOMEM;
 
 	/* Already connected through? */
-	if (vif->irq)
+	if (vif->tx_irq)
 		return 0;
 
 	__module_get(THIS_MODULE);
@@ -322,13 +345,37 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
 	if (err < 0)
 		goto err;
 
-	err = bind_interdomain_evtchn_to_irqhandler(
-		vif->domid, evtchn, xenvif_interrupt, 0,
-		vif->dev->name, vif);
-	if (err < 0)
-		goto err_unmap;
-	vif->irq = err;
-	disable_irq(vif->irq);
+	if (tx_evtchn == rx_evtchn) {
+		/* feature-split-event-channels == 0 */
+		err = bind_interdomain_evtchn_to_irqhandler(
+			vif->domid, tx_evtchn, xenvif_interrupt, 0,
+			vif->dev->name, vif);
+		if (err < 0)
+			goto err_unmap;
+		vif->tx_irq = vif->rx_irq = err;
+		disable_irq(vif->tx_irq);
+	} else {
+		/* feature-split-event-channels == 1 */
+		snprintf(vif->tx_irq_name, sizeof(vif->tx_irq_name),
+			 "%s-tx", vif->dev->name);
+		err = bind_interdomain_evtchn_to_irqhandler(
+			vif->domid, tx_evtchn, xenvif_tx_interrupt, 0,
+			vif->tx_irq_name, vif);
+		if (err < 0)
+			goto err_unmap;
+		vif->tx_irq = err;
+		disable_irq(vif->tx_irq);
+
+		snprintf(vif->rx_irq_name, sizeof(vif->rx_irq_name),
+			 "%s-rx", vif->dev->name);
+		err = bind_interdomain_evtchn_to_irqhandler(
+			vif->domid, rx_evtchn, xenvif_rx_interrupt, 0,
+			vif->rx_irq_name, vif);
+		if (err < 0)
+			goto err_tx_unbind;
+		vif->rx_irq = err;
+		disable_irq(vif->rx_irq);
+	}
 
 	xenvif_get(vif);
 
@@ -342,6 +389,9 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
 	rtnl_unlock();
 
 	return 0;
+err_tx_unbind:
+	unbind_from_irqhandler(vif->tx_irq, vif);
+	vif->tx_irq = 0;
 err_unmap:
 	xen_netbk_unmap_frontend_rings(vif);
 err:
@@ -375,8 +425,13 @@ void xenvif_disconnect(struct xenvif *vif)
 	atomic_dec(&vif->refcnt);
 	wait_event(vif->waiting_to_free, atomic_read(&vif->refcnt) == 0);
 
-	if (vif->irq) {
-		unbind_from_irqhandler(vif->irq, vif);
+	if (vif->tx_irq) {
+		if (vif->tx_irq == vif->rx_irq)
+			unbind_from_irqhandler(vif->tx_irq, vif);
+		else {
+			unbind_from_irqhandler(vif->tx_irq, vif);
+			unbind_from_irqhandler(vif->rx_irq, vif);
+		}
 		/* vif->irq is valid, we had a module_get in
 		 * xenvif_connect.
 		 */
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 2d9477f..82576ff 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -47,6 +47,13 @@
 #include <asm/xen/hypercall.h>
 #include <asm/xen/page.h>
 
+/* Provide an option to disable split event channels at load time as
+ * event channels are limited resource. Split event channels are
+ * enabled by default.
+ */
+bool separate_tx_rx_irq = 1;
+module_param(separate_tx_rx_irq, bool, 0644);
+
 /*
  * This is the maximum slots a skb can have. If a guest sends a skb
  * which exceeds this limit it is considered malicious.
@@ -662,7 +669,7 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
 {
 	struct xenvif *vif = NULL, *tmp;
 	s8 status;
-	u16 irq, flags;
+	u16 flags;
 	struct xen_netif_rx_response *resp;
 	struct sk_buff_head rxq;
 	struct sk_buff *skb;
@@ -771,7 +778,6 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
 					 sco->meta_slots_used);
 
 		RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&vif->rx, ret);
-		irq = vif->irq;
 		if (ret && list_empty(&vif->notify_list))
 			list_add_tail(&vif->notify_list, &notify);
 
@@ -783,7 +789,7 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
 	}
 
 	list_for_each_entry_safe(vif, tmp, &notify, notify_list) {
-		notify_remote_via_irq(vif->irq);
+		notify_remote_via_irq(vif->rx_irq);
 		list_del_init(&vif->notify_list);
 	}
 
@@ -1762,7 +1768,7 @@ static void make_tx_response(struct xenvif *vif,
 	vif->tx.rsp_prod_pvt = ++i;
 	RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&vif->tx, notify);
 	if (notify)
-		notify_remote_via_irq(vif->irq);
+		notify_remote_via_irq(vif->tx_irq);
 }
 
 static struct xen_netif_rx_response *make_rx_response(struct xenvif *vif,
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index d230c14..04bd860 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -122,6 +122,16 @@ static int netback_probe(struct xenbus_device *dev,
 		goto fail;
 	}
 
+	/*
+	 * Split event channels support, this is optional so it is not
+	 * put inside the above loop.
+	 */
+	err = xenbus_printf(XBT_NIL, dev->nodename,
+			    "feature-split-event-channels",
+			    "%u", separate_tx_rx_irq);
+	if (err)
+		pr_debug("Error writing feature-split-event-channels");
+
 	err = xenbus_switch_state(dev, XenbusStateInitWait);
 	if (err)
 		goto fail;
@@ -393,21 +403,36 @@ static int connect_rings(struct backend_info *be)
 	struct xenvif *vif = be->vif;
 	struct xenbus_device *dev = be->dev;
 	unsigned long tx_ring_ref, rx_ring_ref;
-	unsigned int evtchn, rx_copy;
+	unsigned int tx_evtchn, rx_evtchn, rx_copy;
 	int err;
 	int val;
 
 	err = xenbus_gather(XBT_NIL, dev->otherend,
 			    "tx-ring-ref", "%lu", &tx_ring_ref,
-			    "rx-ring-ref", "%lu", &rx_ring_ref,
-			    "event-channel", "%u", &evtchn, NULL);
+			    "rx-ring-ref", "%lu", &rx_ring_ref, NULL);
 	if (err) {
 		xenbus_dev_fatal(dev, err,
-				 "reading %s/ring-ref and event-channel",
+				 "reading %s/ring-ref",
 				 dev->otherend);
 		return err;
 	}
 
+	/* Try split event channels first, then single event channel. */
+	err = xenbus_gather(XBT_NIL, dev->otherend,
+			    "event-channel-tx", "%u", &tx_evtchn,
+			    "event-channel-rx", "%u", &rx_evtchn, NULL);
+	if (err < 0) {
+		err = xenbus_scanf(XBT_NIL, dev->otherend,
+				   "event-channel", "%u", &tx_evtchn);
+		if (err < 0) {
+			xenbus_dev_fatal(dev, err,
+					 "reading %s/event-channel(-tx/rx)",
+					 dev->otherend);
+			return err;
+		}
+		rx_evtchn = tx_evtchn;
+	}
+
 	err = xenbus_scanf(XBT_NIL, dev->otherend, "request-rx-copy", "%u",
 			   &rx_copy);
 	if (err == -ENOENT) {
@@ -454,11 +479,13 @@ static int connect_rings(struct backend_info *be)
 	vif->csum = !val;
 
 	/* Map the shared frame, irq etc. */
-	err = xenvif_connect(vif, tx_ring_ref, rx_ring_ref, evtchn);
+	err = xenvif_connect(vif, tx_ring_ref, rx_ring_ref,
+			     tx_evtchn, rx_evtchn);
 	if (err) {
 		xenbus_dev_fatal(dev, err,
-				 "mapping shared-frames %lu/%lu port %u",
-				 tx_ring_ref, rx_ring_ref, evtchn);
+				 "mapping shared-frames %lu/%lu port tx %u rx %u",
+				 tx_ring_ref, rx_ring_ref,
+				 tx_evtchn, rx_evtchn);
 		return err;
 	}
 	return 0;
-- 
cgit v0.10.2


From d634bf2cb96639b7eddb646dc1fc17b1bc6e567f Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Wed, 22 May 2013 06:34:46 +0000
Subject: xen-netfront: split event channels support for Xen frontend driver

This patch adds a new feature called feature-split-event-channels for
netfront, enabling it to handle TX and RX events separately.

If netback does not support this feature, it falls back to use single event
channel.

If netfront fails to setup split event channels, it will try falling back to
single event channel.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 5770e3b..62238a0 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -85,7 +85,15 @@ struct netfront_info {
 
 	struct napi_struct napi;
 
-	unsigned int evtchn;
+	/* Split event channels support, tx_* == rx_* when using
+	 * single event channel.
+	 */
+	unsigned int tx_evtchn, rx_evtchn;
+	unsigned int tx_irq, rx_irq;
+	/* Only used when split event channels support is enabled */
+	char tx_irq_name[IFNAMSIZ+4]; /* DEVNAME-tx */
+	char rx_irq_name[IFNAMSIZ+4]; /* DEVNAME-rx */
+
 	struct xenbus_device *xbdev;
 
 	spinlock_t   tx_lock;
@@ -330,7 +338,7 @@ no_skb:
  push:
 	RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&np->rx, notify);
 	if (notify)
-		notify_remote_via_irq(np->netdev->irq);
+		notify_remote_via_irq(np->rx_irq);
 }
 
 static int xennet_open(struct net_device *dev)
@@ -623,7 +631,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&np->tx, notify);
 	if (notify)
-		notify_remote_via_irq(np->netdev->irq);
+		notify_remote_via_irq(np->tx_irq);
 
 	u64_stats_update_begin(&stats->syncp);
 	stats->tx_bytes += skb->len;
@@ -1254,23 +1262,35 @@ static int xennet_set_features(struct net_device *dev,
 	return 0;
 }
 
-static irqreturn_t xennet_interrupt(int irq, void *dev_id)
+static irqreturn_t xennet_tx_interrupt(int irq, void *dev_id)
 {
-	struct net_device *dev = dev_id;
-	struct netfront_info *np = netdev_priv(dev);
+	struct netfront_info *np = dev_id;
+	struct net_device *dev = np->netdev;
 	unsigned long flags;
 
 	spin_lock_irqsave(&np->tx_lock, flags);
+	xennet_tx_buf_gc(dev);
+	spin_unlock_irqrestore(&np->tx_lock, flags);
 
-	if (likely(netif_carrier_ok(dev))) {
-		xennet_tx_buf_gc(dev);
-		/* Under tx_lock: protects access to rx shared-ring indexes. */
-		if (RING_HAS_UNCONSUMED_RESPONSES(&np->rx))
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t xennet_rx_interrupt(int irq, void *dev_id)
+{
+	struct netfront_info *np = dev_id;
+	struct net_device *dev = np->netdev;
+
+	if (likely(netif_carrier_ok(dev) &&
+		   RING_HAS_UNCONSUMED_RESPONSES(&np->rx)))
 			napi_schedule(&np->napi);
-	}
 
-	spin_unlock_irqrestore(&np->tx_lock, flags);
+	return IRQ_HANDLED;
+}
 
+static irqreturn_t xennet_interrupt(int irq, void *dev_id)
+{
+	xennet_tx_interrupt(irq, dev_id);
+	xennet_rx_interrupt(irq, dev_id);
 	return IRQ_HANDLED;
 }
 
@@ -1451,9 +1471,14 @@ static void xennet_disconnect_backend(struct netfront_info *info)
 	spin_unlock_irq(&info->tx_lock);
 	spin_unlock_bh(&info->rx_lock);
 
-	if (info->netdev->irq)
-		unbind_from_irqhandler(info->netdev->irq, info->netdev);
-	info->evtchn = info->netdev->irq = 0;
+	if (info->tx_irq && (info->tx_irq == info->rx_irq))
+		unbind_from_irqhandler(info->tx_irq, info);
+	if (info->tx_irq && (info->tx_irq != info->rx_irq)) {
+		unbind_from_irqhandler(info->tx_irq, info);
+		unbind_from_irqhandler(info->rx_irq, info);
+	}
+	info->tx_evtchn = info->rx_evtchn = 0;
+	info->tx_irq = info->rx_irq = 0;
 
 	/* End access and free the pages */
 	xennet_end_access(info->tx_ring_ref, info->tx.sring);
@@ -1503,12 +1528,82 @@ static int xen_net_read_mac(struct xenbus_device *dev, u8 mac[])
 	return 0;
 }
 
+static int setup_netfront_single(struct netfront_info *info)
+{
+	int err;
+
+	err = xenbus_alloc_evtchn(info->xbdev, &info->tx_evtchn);
+	if (err < 0)
+		goto fail;
+
+	err = bind_evtchn_to_irqhandler(info->tx_evtchn,
+					xennet_interrupt,
+					0, info->netdev->name, info);
+	if (err < 0)
+		goto bind_fail;
+	info->rx_evtchn = info->tx_evtchn;
+	info->rx_irq = info->tx_irq = err;
+
+	return 0;
+
+bind_fail:
+	xenbus_free_evtchn(info->xbdev, info->tx_evtchn);
+	info->tx_evtchn = 0;
+fail:
+	return err;
+}
+
+static int setup_netfront_split(struct netfront_info *info)
+{
+	int err;
+
+	err = xenbus_alloc_evtchn(info->xbdev, &info->tx_evtchn);
+	if (err < 0)
+		goto fail;
+	err = xenbus_alloc_evtchn(info->xbdev, &info->rx_evtchn);
+	if (err < 0)
+		goto alloc_rx_evtchn_fail;
+
+	snprintf(info->tx_irq_name, sizeof(info->tx_irq_name),
+		 "%s-tx", info->netdev->name);
+	err = bind_evtchn_to_irqhandler(info->tx_evtchn,
+					xennet_tx_interrupt,
+					0, info->tx_irq_name, info);
+	if (err < 0)
+		goto bind_tx_fail;
+	info->tx_irq = err;
+
+	snprintf(info->rx_irq_name, sizeof(info->rx_irq_name),
+		 "%s-rx", info->netdev->name);
+	err = bind_evtchn_to_irqhandler(info->rx_evtchn,
+					xennet_rx_interrupt,
+					0, info->rx_irq_name, info);
+	if (err < 0)
+		goto bind_rx_fail;
+	info->rx_irq = err;
+
+	return 0;
+
+bind_rx_fail:
+	unbind_from_irqhandler(info->tx_irq, info);
+	info->tx_irq = 0;
+bind_tx_fail:
+	xenbus_free_evtchn(info->xbdev, info->rx_evtchn);
+	info->rx_evtchn = 0;
+alloc_rx_evtchn_fail:
+	xenbus_free_evtchn(info->xbdev, info->tx_evtchn);
+	info->tx_evtchn = 0;
+fail:
+	return err;
+}
+
 static int setup_netfront(struct xenbus_device *dev, struct netfront_info *info)
 {
 	struct xen_netif_tx_sring *txs;
 	struct xen_netif_rx_sring *rxs;
 	int err;
 	struct net_device *netdev = info->netdev;
+	unsigned int feature_split_evtchn;
 
 	info->tx_ring_ref = GRANT_INVALID_REF;
 	info->rx_ring_ref = GRANT_INVALID_REF;
@@ -1516,6 +1611,12 @@ static int setup_netfront(struct xenbus_device *dev, struct netfront_info *info)
 	info->tx.sring = NULL;
 	netdev->irq = 0;
 
+	err = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+			   "feature-split-event-channels", "%u",
+			   &feature_split_evtchn);
+	if (err < 0)
+		feature_split_evtchn = 0;
+
 	err = xen_net_read_mac(dev, netdev->dev_addr);
 	if (err) {
 		xenbus_dev_fatal(dev, err, "parsing %s/mac", dev->nodename);
@@ -1550,22 +1651,23 @@ static int setup_netfront(struct xenbus_device *dev, struct netfront_info *info)
 		goto grant_rx_ring_fail;
 	info->rx_ring_ref = err;
 
-	err = xenbus_alloc_evtchn(dev, &info->evtchn);
+	if (feature_split_evtchn)
+		err = setup_netfront_split(info);
+	/* setup single event channel if
+	 *  a) feature-split-event-channels == 0
+	 *  b) feature-split-event-channels == 1 but failed to setup
+	 */
+	if (!feature_split_evtchn || (feature_split_evtchn && err))
+		err = setup_netfront_single(info);
+
 	if (err)
 		goto alloc_evtchn_fail;
 
-	err = bind_evtchn_to_irqhandler(info->evtchn, xennet_interrupt,
-					0, netdev->name, netdev);
-	if (err < 0)
-		goto bind_fail;
-	netdev->irq = err;
 	return 0;
 
 	/* If we fail to setup netfront, it is safe to just revoke access to
 	 * granted pages because backend is not accessing it at this point.
 	 */
-bind_fail:
-	xenbus_free_evtchn(dev, info->evtchn);
 alloc_evtchn_fail:
 	gnttab_end_foreign_access_ref(info->rx_ring_ref, 0);
 grant_rx_ring_fail:
@@ -1610,11 +1712,27 @@ again:
 		message = "writing rx ring-ref";
 		goto abort_transaction;
 	}
-	err = xenbus_printf(xbt, dev->nodename,
-			    "event-channel", "%u", info->evtchn);
-	if (err) {
-		message = "writing event-channel";
-		goto abort_transaction;
+
+	if (info->tx_evtchn == info->rx_evtchn) {
+		err = xenbus_printf(xbt, dev->nodename,
+				    "event-channel", "%u", info->tx_evtchn);
+		if (err) {
+			message = "writing event-channel";
+			goto abort_transaction;
+		}
+	} else {
+		err = xenbus_printf(xbt, dev->nodename,
+				    "event-channel-tx", "%u", info->tx_evtchn);
+		if (err) {
+			message = "writing event-channel-tx";
+			goto abort_transaction;
+		}
+		err = xenbus_printf(xbt, dev->nodename,
+				    "event-channel-rx", "%u", info->rx_evtchn);
+		if (err) {
+			message = "writing event-channel-rx";
+			goto abort_transaction;
+		}
 	}
 
 	err = xenbus_printf(xbt, dev->nodename, "request-rx-copy", "%u",
@@ -1727,7 +1845,9 @@ static int xennet_connect(struct net_device *dev)
 	 * packets.
 	 */
 	netif_carrier_on(np->netdev);
-	notify_remote_via_irq(np->netdev->irq);
+	notify_remote_via_irq(np->tx_irq);
+	if (np->tx_irq != np->rx_irq)
+		notify_remote_via_irq(np->rx_irq);
 	xennet_tx_buf_gc(dev);
 	xennet_alloc_rx_buffers(dev);
 
-- 
cgit v0.10.2


From a5560a6c17a4af4e8f45d5c1215ba7d5bb0ff109 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Wed, 22 May 2013 06:34:47 +0000
Subject: xen: netif.h: document feature-split-event-channels

This patch synchronises documentation for feature-split-event-channels from
Xen canonical header file.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h
index 3ef3fe0..eb262e3 100644
--- a/include/xen/interface/io/netif.h
+++ b/include/xen/interface/io/netif.h
@@ -38,6 +38,18 @@
  * that it cannot safely queue packets (as it may not be kicked to send them).
  */
 
+ /*
+ * "feature-split-event-channels" is introduced to separate guest TX
+ * and RX notificaion. Backend either doesn't support this feature or
+ * advertise it via xenstore as 0 (disabled) or 1 (enabled).
+ *
+ * To make use of this feature, frontend should allocate two event
+ * channels for TX and RX, advertise them to backend as
+ * "event-channel-tx" and "event-channel-rx" respectively. If frontend
+ * doesn't want to use this feature, it just writes "event-channel"
+ * node as before.
+ */
+
 /*
  * This is the 'wire' format for packets:
  *  Request 1: xen_netif_tx_request  -- XEN_NETTXF_* (any flags)
-- 
cgit v0.10.2


From 3521b419cc21339537266cb1ab9934b041ca08e9 Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Wed, 22 May 2013 21:21:49 +0000
Subject: bnx2x: Add Private Flags Support

Utilize ethtool's callback `get_priv_flags' - shed more light on the
feasibility of devices as storage interfaces.

CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 3dba2a7..3f42910 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -2137,6 +2137,8 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id,
 #define ATTN_HARD_WIRED_MASK		0xff00
 #define ATTENTION_ID			4
 
+#define IS_MF_STORAGE_ONLY(bp) (IS_MF_STORAGE_SD(bp) || \
+				 IS_MF_FCOE_AFEX(bp))
 
 /* stuff added to make the code fit 80Col */
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index ce1a916..9e311c4 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -1921,6 +1921,19 @@ static const char bnx2x_tests_str_arr[BNX2X_NUM_TESTS_SF][ETH_GSTRING_LEN] = {
 	"link_test (online)         "
 };
 
+enum {
+	BNX2X_PRI_FLAG_ISCSI,
+	BNX2X_PRI_FLAG_FCOE,
+	BNX2X_PRI_FLAG_STORAGE,
+	BNX2X_PRI_FLAG_LEN,
+};
+
+static const char bnx2x_private_arr[BNX2X_PRI_FLAG_LEN][ETH_GSTRING_LEN] = {
+	"iSCSI offload support",
+	"FCoE offload support",
+	"Storage only interface"
+};
+
 static u32 bnx2x_eee_to_adv(u32 eee_adv)
 {
 	u32 modes = 0;
@@ -2978,32 +2991,47 @@ static int bnx2x_num_stat_queues(struct bnx2x *bp)
 static int bnx2x_get_sset_count(struct net_device *dev, int stringset)
 {
 	struct bnx2x *bp = netdev_priv(dev);
-	int i, num_stats;
+	int i, num_strings = 0;
 
 	switch (stringset) {
 	case ETH_SS_STATS:
 		if (is_multi(bp)) {
-			num_stats = bnx2x_num_stat_queues(bp) *
-						BNX2X_NUM_Q_STATS;
+			num_strings = bnx2x_num_stat_queues(bp) *
+				      BNX2X_NUM_Q_STATS;
 		} else
-			num_stats = 0;
+			num_strings = 0;
 		if (IS_MF_MODE_STAT(bp)) {
 			for (i = 0; i < BNX2X_NUM_STATS; i++)
 				if (IS_FUNC_STAT(i))
-					num_stats++;
+					num_strings++;
 		} else
-			num_stats += BNX2X_NUM_STATS;
+			num_strings += BNX2X_NUM_STATS;
 
-		return num_stats;
+		return num_strings;
 
 	case ETH_SS_TEST:
 		return BNX2X_NUM_TESTS(bp);
 
+	case ETH_SS_PRIV_FLAGS:
+		return BNX2X_PRI_FLAG_LEN;
+
 	default:
 		return -EINVAL;
 	}
 }
 
+static u32 bnx2x_get_private_flags(struct net_device *dev)
+{
+	struct bnx2x *bp = netdev_priv(dev);
+	u32 flags = 0;
+
+	flags |= (!(bp->flags & NO_ISCSI_FLAG) ? 1 : 0) << BNX2X_PRI_FLAG_ISCSI;
+	flags |= (!(bp->flags & NO_FCOE_FLAG)  ? 1 : 0) << BNX2X_PRI_FLAG_FCOE;
+	flags |= (!!IS_MF_STORAGE_ONLY(bp)) << BNX2X_PRI_FLAG_STORAGE;
+
+	return flags;
+}
+
 static void bnx2x_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 {
 	struct bnx2x *bp = netdev_priv(dev);
@@ -3045,6 +3073,12 @@ static void bnx2x_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 			start = 4;
 		memcpy(buf, bnx2x_tests_str_arr + start,
 		       ETH_GSTRING_LEN * BNX2X_NUM_TESTS(bp));
+		break;
+
+	case ETH_SS_PRIV_FLAGS:
+		memcpy(buf, bnx2x_private_arr,
+		       ETH_GSTRING_LEN * BNX2X_PRI_FLAG_LEN);
+		break;
 	}
 }
 
@@ -3445,6 +3479,7 @@ static const struct ethtool_ops bnx2x_ethtool_ops = {
 	.set_pauseparam		= bnx2x_set_pauseparam,
 	.self_test		= bnx2x_self_test,
 	.get_sset_count		= bnx2x_get_sset_count,
+	.get_priv_flags		= bnx2x_get_private_flags,
 	.get_strings		= bnx2x_get_strings,
 	.set_phys_id		= bnx2x_set_phys_id,
 	.get_ethtool_stats	= bnx2x_get_ethtool_stats,
-- 
cgit v0.10.2


From 178135c11611c02161c5b64aeba341d777f2d64d Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Wed, 22 May 2013 21:21:50 +0000
Subject: bnx2x: Link-flap avoidance in switch dependent mode

As part of the previous unload flow, probed devices will reset the chip
in order to clean the remains of the UNDI driver.
As a result, it's possible for the FW to toggle the link.

This toggling can prove fatal, as long periods without link can cause the
filesystem mount to fail as the storage protocol timeouts. This has been
observed against particular switches with long link re-establishment time.

This patch informs FW during the reset period that the link should not
be toggled - the FW will keep it alive until some interface will load and claim
the link as its own.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 3f42910..946450d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1937,6 +1937,8 @@ int bnx2x_sp_post(struct bnx2x *bp, int command, int cid,
 void bnx2x_update_coalesce(struct bnx2x *bp);
 int bnx2x_get_cur_phy_idx(struct bnx2x *bp);
 
+bool bnx2x_port_after_undi(struct bnx2x *bp);
+
 static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms,
 			   int wait)
 {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 6cc5101..f4d1c08 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2183,6 +2183,8 @@ alloc_mem_err:
 /* send load request to mcp and analyze response */
 static int bnx2x_nic_load_request(struct bnx2x *bp, u32 *load_code)
 {
+	u32 param;
+
 	/* init fw_seq */
 	bp->fw_seq =
 		(SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) &
@@ -2195,9 +2197,13 @@ static int bnx2x_nic_load_request(struct bnx2x *bp, u32 *load_code)
 		 DRV_PULSE_SEQ_MASK);
 	BNX2X_DEV_INFO("drv_pulse 0x%x\n", bp->fw_drv_pulse_wr_seq);
 
+	param = DRV_MSG_CODE_LOAD_REQ_WITH_LFA;
+
+	if (IS_MF_SD(bp) && bnx2x_port_after_undi(bp))
+		param |= DRV_MSG_CODE_LOAD_REQ_FORCE_LFA;
+
 	/* load request */
-	(*load_code) = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ,
-					DRV_MSG_CODE_LOAD_REQ_WITH_LFA);
+	(*load_code) = bnx2x_fw_command(bp, DRV_MSG_CODE_LOAD_REQ, param);
 
 	/* if mcp fails to respond we must abort */
 	if (!(*load_code)) {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 12f00a4..5ef3f96 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -1323,6 +1323,8 @@ struct drv_func_mb {
 	#define DRV_MSG_CODE_UNLOAD_SKIP_LINK_RESET     0x00000002
 
 	#define DRV_MSG_CODE_LOAD_REQ_WITH_LFA          0x0000100a
+	#define DRV_MSG_CODE_LOAD_REQ_FORCE_LFA         0x00002000
+
 	u32 fw_mb_header;
 	#define FW_MSG_CODE_MASK                        0xffff0000
 	#define FW_MSG_CODE_DRV_LOAD_COMMON             0x10100000
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index b4c9dea..649880d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -9780,6 +9780,21 @@ static bool bnx2x_prev_is_path_marked(struct bnx2x *bp)
 	return rc;
 }
 
+bool bnx2x_port_after_undi(struct bnx2x *bp)
+{
+	struct bnx2x_prev_path_list *entry;
+	bool val;
+
+	down(&bnx2x_prev_sem);
+
+	entry = bnx2x_prev_path_get_entry(bp);
+	val = !!(entry && (entry->undi & (1 << BP_PORT(bp))));
+
+	up(&bnx2x_prev_sem);
+
+	return val;
+}
+
 static int bnx2x_prev_mark_path(struct bnx2x *bp, bool after_undi)
 {
 	struct bnx2x_prev_path_list *tmp_list;
@@ -10036,7 +10051,6 @@ static int bnx2x_prev_unload(struct bnx2x *bp)
 {
 	int time_counter = 10;
 	u32 rc, fw, hw_lock_reg, hw_lock_val;
-	struct bnx2x_prev_path_list *prev_list;
 	BNX2X_DEV_INFO("Entering Previous Unload Flow\n");
 
 	/* clear hw from errors which may have resulted from an interrupted
@@ -10107,8 +10121,7 @@ static int bnx2x_prev_unload(struct bnx2x *bp)
 	}
 
 	/* Mark function if its port was used to boot from SAN */
-	prev_list = bnx2x_prev_path_get_entry(bp);
-	if (prev_list && (prev_list->undi & (1 << BP_PORT(bp))))
+	if (bnx2x_port_after_undi(bp))
 		bp->link_params.feature_config_flags |=
 			FEATURE_CONFIG_BOOT_FROM_SAN;
 
-- 
cgit v0.10.2


From e68072ef46bcfb609ea16d45f115896a0dfbd3ff Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Wed, 22 May 2013 21:21:51 +0000
Subject: bnx2x: Wait for MCP validity during AER

During PCIe advanced error recovery, the secondary bus reset will cause FW
to reset; This will cause the shared memory between it and the driver to be
invalidated.

During the driver's recovery flow, the driver should not make any assumption
on the validity of that memory and instead re-initialize it.

This also removes a redundant re-initialization of a previously
initialized mutex.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 649880d..7ed9cdf 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12760,19 +12760,6 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
 	return 0;
 }
 
-static void bnx2x_eeh_recover(struct bnx2x *bp)
-{
-	u32 val;
-
-	mutex_init(&bp->port.phy_mutex);
-
-
-	val = SHMEM_RD(bp, validity_map[BP_PORT(bp)]);
-	if ((val & (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
-		!= (SHR_MEM_VALIDITY_DEV_INFO | SHR_MEM_VALIDITY_MB))
-		BNX2X_ERR("BAD MCP validity signature\n");
-}
-
 /**
  * bnx2x_io_error_detected - called when PCI error is detected
  * @pdev: Pointer to PCI device
@@ -12841,6 +12828,10 @@ static pci_ers_result_t bnx2x_io_slot_reset(struct pci_dev *pdev)
 
 	if (netif_running(dev)) {
 		BNX2X_ERR("IO slot reset --> driver unload\n");
+
+		/* MCP should have been reset; Need to wait for validity */
+		bnx2x_init_shmem(bp);
+
 		if (IS_PF(bp) && SHMEM2_HAS(bp, drv_capabilities_flag)) {
 			u32 v;
 
@@ -12899,8 +12890,6 @@ static void bnx2x_io_resume(struct pci_dev *pdev)
 
 	rtnl_lock();
 
-	bnx2x_eeh_recover(bp);
-
 	bp->fw_seq = SHMEM_RD(bp, func_mb[BP_FW_MB_IDX(bp)].drv_mb_header) &
 							DRV_MSG_SEQ_NUMBER_MASK;
 
-- 
cgit v0.10.2


From 84b6f7456e8b88507dd85f988a9d350eb5af0e46 Mon Sep 17 00:00:00 2001
From: Yaniv Rosner <yanivr@broadcom.com>
Date: Wed, 22 May 2013 21:21:52 +0000
Subject: bnx2x: Enable `set_phys_id' for all functions

In Multi-function mode, all functions should be able to utilize said function;
There's no reason why only the link owner should be able to do so.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 9e311c4..32aa88f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -3146,11 +3146,6 @@ static int bnx2x_set_phys_id(struct net_device *dev,
 		return -EAGAIN;
 	}
 
-	if (!bp->port.pmf) {
-		DP(BNX2X_MSG_ETHTOOL, "Interface is not pmf\n");
-		return -EOPNOTSUPP;
-	}
-
 	switch (state) {
 	case ETHTOOL_ID_ACTIVE:
 		return 1;	/* cycle on/off once per second */
-- 
cgit v0.10.2


From 161f65ba3583b84b4714f21dbee263f99824c516 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Wed, 22 May 2013 07:49:34 +0000
Subject: bridge: Set vlan_features to allow offloads on vlans.

When vlan device is configured on top of the brige, it does
not support any offload capabilities because the bridge
device does not initiliaze vlan_fatures.  Set vlan_fatures to
be equivalent to hw_fatures.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 9673128..75f3239 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -22,6 +22,9 @@
 #include <asm/uaccess.h>
 #include "br_private.h"
 
+#define COMMON_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | \
+			 NETIF_F_GSO_MASK | NETIF_F_HW_CSUM)
+
 /* net device transmit always called with BH disabled */
 netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
@@ -346,12 +349,10 @@ void br_dev_setup(struct net_device *dev)
 	dev->tx_queue_len = 0;
 	dev->priv_flags = IFF_EBRIDGE;
 
-	dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
-			NETIF_F_GSO_MASK | NETIF_F_HW_CSUM | NETIF_F_LLTX |
-			NETIF_F_NETNS_LOCAL | NETIF_F_HW_VLAN_CTAG_TX;
-	dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
-			   NETIF_F_GSO_MASK | NETIF_F_HW_CSUM |
-			   NETIF_F_HW_VLAN_CTAG_TX;
+	dev->features = COMMON_FEATURES | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL |
+			NETIF_F_HW_VLAN_CTAG_TX;
+	dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX;
+	dev->vlan_features = COMMON_FEATURES;
 
 	br->dev = dev;
 	spin_lock_init(&br->lock);
-- 
cgit v0.10.2


From 191cb1f21afd9a7fbaa085ad9b86cb307e9a3891 Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Wed, 22 May 2013 07:54:40 +0000
Subject: rps: document flow limit in scaling.txt

Explain the mechanism and API of the recently merged
rps flow limit patch.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/scaling.txt b/Documentation/networking/scaling.txt
index 579994a..ca6977f 100644
--- a/Documentation/networking/scaling.txt
+++ b/Documentation/networking/scaling.txt
@@ -163,6 +163,64 @@ and unnecessary. If there are fewer hardware queues than CPUs, then
 RPS might be beneficial if the rps_cpus for each queue are the ones that
 share the same memory domain as the interrupting CPU for that queue.
 
+==== RPS Flow Limit
+
+RPS scales kernel receive processing across CPUs without introducing
+reordering. The trade-off to sending all packets from the same flow
+to the same CPU is CPU load imbalance if flows vary in packet rate.
+In the extreme case a single flow dominates traffic. Especially on
+common server workloads with many concurrent connections, such
+behavior indicates a problem such as a misconfiguration or spoofed
+source Denial of Service attack.
+
+Flow Limit is an optional RPS feature that prioritizes small flows
+during CPU contention by dropping packets from large flows slightly
+ahead of those from small flows. It is active only when an RPS or RFS
+destination CPU approaches saturation.  Once a CPU's input packet
+queue exceeds half the maximum queue length (as set by sysctl
+net.core.netdev_max_backlog), the kernel starts a per-flow packet
+count over the last 256 packets. If a flow exceeds a set ratio (by
+default, half) of these packets when a new packet arrives, then the
+new packet is dropped. Packets from other flows are still only
+dropped once the input packet queue reaches netdev_max_backlog.
+No packets are dropped when the input packet queue length is below
+the threshold, so flow limit does not sever connections outright:
+even large flows maintain connectivity.
+
+== Interface
+
+Flow limit is compiled in by default (CONFIG_NET_FLOW_LIMIT), but not
+turned on. It is implemented for each CPU independently (to avoid lock
+and cache contention) and toggled per CPU by setting the relevant bit
+in sysctl net.core.flow_limit_cpu_bitmap. It exposes the same CPU
+bitmap interface as rps_cpus (see above) when called from procfs:
+
+ /proc/sys/net/core/flow_limit_cpu_bitmap
+
+Per-flow rate is calculated by hashing each packet into a hashtable
+bucket and incrementing a per-bucket counter. The hash function is
+the same that selects a CPU in RPS, but as the number of buckets can
+be much larger than the number of CPUs, flow limit has finer-grained
+identification of large flows and fewer false positives. The default
+table has 4096 buckets. This value can be modified through sysctl
+
+ net.core.flow_limit_table_len
+
+The value is only consulted when a new table is allocated. Modifying
+it does not update active tables.
+
+== Suggested Configuration
+
+Flow limit is useful on systems with many concurrent connections,
+where a single connection taking up 50% of a CPU indicates a problem.
+In such environments, enable the feature on all CPUs that handle
+network rx interrupts (as set in /proc/irq/N/smp_affinity).
+
+The feature depends on the input packet queue length to exceed
+the flow limit threshold (50%) + the flow history length (256).
+Setting net.core.netdev_max_backlog to either 1000 or 10000
+performed well in experiments.
+
 
 RFS: Receive Flow Steering
 ==========================
-- 
cgit v0.10.2


From ee9c799c231324de681eb21e06d8bf4842768b75 Mon Sep 17 00:00:00 2001
From: Sathya Perla <sathya.perla@emulex.com>
Date: Wed, 22 May 2013 23:04:55 +0000
Subject: be2net: refactor HW workarounds in be_xmit()

Refactor all TX HW workarounds into a separate routine called
be_xmit_workarounds().

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index a444110..7892361a 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -842,32 +842,27 @@ static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
 	return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
 }
 
-static int be_ipv6_tx_stall_chk(struct be_adapter *adapter, struct sk_buff *skb)
+static int be_ipv6_tx_stall_chk(struct be_adapter *adapter,
+				struct sk_buff *skb)
 {
-	return BE3_chip(adapter) &&
-		be_ipv6_exthdr_check(skb);
+	return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
 }
 
-static netdev_tx_t be_xmit(struct sk_buff *skb,
-			struct net_device *netdev)
+static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
+					   struct sk_buff *skb,
+					   bool *skip_hw_vlan)
 {
-	struct be_adapter *adapter = netdev_priv(netdev);
-	struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
-	struct be_queue_info *txq = &txo->q;
-	struct iphdr *ip = NULL;
-	u32 wrb_cnt = 0, copied = 0;
-	u32 start = txq->head, eth_hdr_len;
-	bool dummy_wrb, stopped = false;
-	bool skip_hw_vlan = false;
 	struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
-
-	eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
-		VLAN_ETH_HLEN : ETH_HLEN;
+	unsigned int eth_hdr_len;
+	struct iphdr *ip;
 
 	/* For padded packets, BE HW modifies tot_len field in IP header
 	 * incorrecly when VLAN tag is inserted by HW.
 	 */
-	if (skb->len <= 60 && vlan_tx_tag_present(skb) && is_ipv4_pkt(skb)) {
+	eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
+						VLAN_ETH_HLEN : ETH_HLEN;
+	if (skb->len <= 60 && vlan_tx_tag_present(skb) &&
+	    is_ipv4_pkt(skb)) {
 		ip = (struct iphdr *)ip_hdr(skb);
 		pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
 	}
@@ -877,15 +872,15 @@ static netdev_tx_t be_xmit(struct sk_buff *skb,
 	 */
 	if ((adapter->function_mode & UMC_ENABLED) &&
 	    veh->h_vlan_proto == htons(ETH_P_8021Q))
-			skip_hw_vlan = true;
+			*skip_hw_vlan = true;
 
 	/* HW has a bug wherein it will calculate CSUM for VLAN
 	 * pkts even though it is disabled.
 	 * Manually insert VLAN in pkt.
 	 */
 	if (skb->ip_summed != CHECKSUM_PARTIAL &&
-			vlan_tx_tag_present(skb)) {
-		skb = be_insert_vlan_in_pkt(adapter, skb, &skip_hw_vlan);
+	    vlan_tx_tag_present(skb)) {
+		skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
 		if (unlikely(!skb))
 			goto tx_drop;
 	}
@@ -895,8 +890,8 @@ static netdev_tx_t be_xmit(struct sk_buff *skb,
 	 * skip HW tagging is not enabled by FW.
 	 */
 	if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
-		     (adapter->pvid || adapter->qnq_vid) &&
-		     !qnq_async_evt_rcvd(adapter)))
+	    (adapter->pvid || adapter->qnq_vid) &&
+	    !qnq_async_evt_rcvd(adapter)))
 		goto tx_drop;
 
 	/* Manual VLAN tag insertion to prevent:
@@ -907,11 +902,31 @@ static netdev_tx_t be_xmit(struct sk_buff *skb,
 	 */
 	if (be_ipv6_tx_stall_chk(adapter, skb) &&
 	    be_vlan_tag_tx_chk(adapter, skb)) {
-		skb = be_insert_vlan_in_pkt(adapter, skb, &skip_hw_vlan);
+		skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
 		if (unlikely(!skb))
 			goto tx_drop;
 	}
 
+	return skb;
+tx_drop:
+	dev_kfree_skb_any(skb);
+	return NULL;
+}
+
+static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+	struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
+	struct be_queue_info *txq = &txo->q;
+	bool dummy_wrb, stopped = false;
+	u32 wrb_cnt = 0, copied = 0;
+	bool skip_hw_vlan = false;
+	u32 start = txq->head;
+
+	skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
+	if (!skb)
+		return NETDEV_TX_OK;
+
 	wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
 
 	copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
@@ -941,7 +956,6 @@ static netdev_tx_t be_xmit(struct sk_buff *skb,
 		txq->head = start;
 		dev_kfree_skb_any(skb);
 	}
-tx_drop:
 	return NETDEV_TX_OK;
 }
 
-- 
cgit v0.10.2


From 786677d100600b7f6089bae0d3967c1b901a6141 Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <linux@rempel-privat.de>
Date: Fri, 24 May 2013 12:05:45 +0200
Subject: mac80211: add STBC flag for radiotap

Some chips can tell us if received frame was
encoded with STBC or not. To make this information available
in user space we can use updated radiotap specification:
http://www.radiotap.org/defined-fields/MCS

This patch will set number of STBC encoded spatial streams (Nss).
The HAVE_STBC flag should be provided by driver.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h
index c399963..c6d07cb 100644
--- a/include/net/ieee80211_radiotap.h
+++ b/include/net/ieee80211_radiotap.h
@@ -269,6 +269,7 @@ enum ieee80211_radiotap_type {
 #define IEEE80211_RADIOTAP_MCS_HAVE_GI		0x04
 #define IEEE80211_RADIOTAP_MCS_HAVE_FMT		0x08
 #define IEEE80211_RADIOTAP_MCS_HAVE_FEC		0x10
+#define IEEE80211_RADIOTAP_MCS_HAVE_STBC	0x20
 
 #define IEEE80211_RADIOTAP_MCS_BW_MASK		0x03
 #define		IEEE80211_RADIOTAP_MCS_BW_20	0
@@ -278,6 +279,12 @@ enum ieee80211_radiotap_type {
 #define IEEE80211_RADIOTAP_MCS_SGI		0x04
 #define IEEE80211_RADIOTAP_MCS_FMT_GF		0x08
 #define IEEE80211_RADIOTAP_MCS_FEC_LDPC		0x10
+#define IEEE80211_RADIOTAP_MCS_STBC_MASK	0x60
+#define		IEEE80211_RADIOTAP_MCS_STBC_1	1
+#define		IEEE80211_RADIOTAP_MCS_STBC_2	2
+#define		IEEE80211_RADIOTAP_MCS_STBC_3	3
+
+#define IEEE80211_RADIOTAP_MCS_STBC_SHIFT	5
 
 /* For IEEE80211_RADIOTAP_AMPDU_STATUS */
 #define IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN		0x0001
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c36535e..c9e6fb7 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -805,6 +805,7 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
  *	on this subframe
  * @RX_FLAG_AMPDU_DELIM_CRC_KNOWN: The delimiter CRC field is known (the CRC
  *	is stored in the @ampdu_delimiter_crc field)
+ * @RX_FLAG_STBC_MASK: STBC 2 bit bitmask. 1 - Nss=1, 2 - Nss=2, 3 - Nss=3
  */
 enum mac80211_rx_flags {
 	RX_FLAG_MMIC_ERROR		= BIT(0),
@@ -832,8 +833,11 @@ enum mac80211_rx_flags {
 	RX_FLAG_80MHZ			= BIT(23),
 	RX_FLAG_80P80MHZ		= BIT(24),
 	RX_FLAG_160MHZ			= BIT(25),
+	RX_FLAG_STBC_MASK		= BIT(26) | BIT(27),
 };
 
+#define RX_FLAG_STBC_SHIFT		26
+
 /**
  * struct ieee80211_rx_status - receive status
  *
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6e2c8c5..7507f7c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -258,6 +258,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	pos += 2;
 
 	if (status->flag & RX_FLAG_HT) {
+		unsigned int stbc;
+
 		rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
 		*pos++ = local->hw.radiotap_mcs_details;
 		*pos = 0;
@@ -267,6 +269,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 			*pos |= IEEE80211_RADIOTAP_MCS_BW_40;
 		if (status->flag & RX_FLAG_HT_GF)
 			*pos |= IEEE80211_RADIOTAP_MCS_FMT_GF;
+		stbc = (status->flag & RX_FLAG_STBC_MASK) >> RX_FLAG_STBC_SHIFT;
+		*pos |= stbc << IEEE80211_RADIOTAP_MCS_STBC_SHIFT;
 		pos++;
 		*pos++ = status->rate_idx;
 	}
-- 
cgit v0.10.2


From a1ef50398deff2f02bad7635fbadda96e8f462e7 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:24 +0200
Subject: rt2800: make rt2800_init_bbp return void

This function can not fail, we always return 0.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index bddfd6d..8de40d6 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4027,20 +4027,16 @@ static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 }
 
-static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
+static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 {
 	unsigned int i;
 	u16 eeprom;
 	u8 reg_id;
 	u8 value;
 
-	if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev) ||
-		     rt2800_wait_bbp_ready(rt2x00dev)))
-		return -EACCES;
-
 	if (rt2x00_rt(rt2x00dev, RT5592)) {
 		rt2800_init_bbp_5592(rt2x00dev);
-		return 0;
+		return;
 	}
 
 	if (rt2x00_rt(rt2x00dev, RT3352)) {
@@ -4337,8 +4333,6 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 			rt2800_bbp_write(rt2x00dev, reg_id, value);
 		}
 	}
-
-	return 0;
 }
 
 static void rt2800_led_open_drain_enable(struct rt2x00_dev *rt2x00dev)
@@ -5189,9 +5183,11 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev)
 	}
 	msleep(1);
 
-	if (unlikely(rt2800_init_bbp(rt2x00dev)))
+	if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev) ||
+		     rt2800_wait_bbp_ready(rt2x00dev)))
 		return -EIO;
 
+	rt2800_init_bbp(rt2x00dev);
 	rt2800_init_rfcsr(rt2x00dev);
 
 	if (rt2x00_is_usb(rt2x00dev) &&
-- 
cgit v0.10.2


From 39ab3e8b4579384068c5081934464fd3a0dfc344 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:25 +0200
Subject: rt2800: prepare for rt2800_init_bbp spit

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 8de40d6..7e16771 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3953,6 +3953,34 @@ static void rt2800_init_bbp_early(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 106, 0x35);
 }
 
+static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
+{
+}
+
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
 {
 	int ant, div_mode;
@@ -4034,7 +4062,34 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 	u8 reg_id;
 	u8 value;
 
-	if (rt2x00_rt(rt2x00dev, RT5592)) {
+	switch (rt2x00dev->chip.rt) {
+	case RT2860:
+	case RT2872:
+	case RT2883:
+		rt2800_init_bbp_28xx(rt2x00dev);
+		break;
+	case RT3070:
+	case RT3071:
+	case RT3090:
+		rt2800_init_bbp_30xx(rt2x00dev);
+		break;
+	case RT3290:
+		rt2800_init_bbp_3290(rt2x00dev);
+		break;
+	case RT3352:
+		rt2800_init_bbp_3352(rt2x00dev);
+		break;
+	case RT3390:
+		rt2800_init_bbp_3390(rt2x00dev);
+		break;
+	case RT3572:
+		rt2800_init_bbp_3572(rt2x00dev);
+		break;
+	case RT5390:
+	case RT5392:
+		rt2800_init_bbp_53xx(rt2x00dev);
+		break;
+	case RT5592:
 		rt2800_init_bbp_5592(rt2x00dev);
 		return;
 	}
-- 
cgit v0.10.2


From dae62957ff6d6c45bba02b00623f56e44e62e286 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:26 +0200
Subject: rt2800: add rt2800_init_bbp_305x_soc subroutine

New routine for SOC specific BBP initialization, empty for now.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 7e16771..ba1a989 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3953,6 +3953,10 @@ static void rt2800_init_bbp_early(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 106, 0x35);
 }
 
+static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
+{
+}
+
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 {
 }
@@ -4062,6 +4066,9 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 	u8 reg_id;
 	u8 value;
 
+	if (rt2800_is_305x_soc(rt2x00dev))
+		rt2800_init_bbp_305x_soc(rt2x00dev);
+
 	switch (rt2x00dev->chip.rt) {
 	case RT2860:
 	case RT2872:
-- 
cgit v0.10.2


From 29f3a58b9025683e088205f3db9e51d5294957b7 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:27 +0200
Subject: rt2800: move 3352 bbp specific code

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index ba1a989..11030ff 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3971,6 +3971,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 {
+	rt2800_bbp_write(rt2x00dev, 3, 0x00);
+	rt2800_bbp_write(rt2x00dev, 4, 0x50);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4101,11 +4103,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3352)) {
-		rt2800_bbp_write(rt2x00dev, 3, 0x00);
-		rt2800_bbp_write(rt2x00dev, 4, 0x50);
-	}
-
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
-- 
cgit v0.10.2


From c3223573520e73c4aee303a122a9ea6a9342a010 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:28 +0200
Subject: rt2800: move rt2800_bbp4_mac_if_ctrl to proper subroutines

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 11030ff..687abd5 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3967,6 +3967,7 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 {
+	rt2800_bbp4_mac_if_ctrl(rt2x00dev);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -3985,6 +3986,7 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 {
+	rt2800_bbp4_mac_if_ctrl(rt2x00dev);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4103,11 +4105,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp4_mac_if_ctrl(rt2x00dev);
-
 	if (rt2800_is_305x_soc(rt2x00dev) ||
 	    rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT3352) ||
-- 
cgit v0.10.2


From b2f8e0bd2624d458cfa4d46a4b49803ef55f7b3f Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:29 +0200
Subject: rt2800: initialize BBP_R31 on proper subroutines

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 687abd5..c741058 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3955,6 +3955,7 @@ static void rt2800_init_bbp_early(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 {
+	rt2800_bbp_write(rt2x00dev, 31, 0x08);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -3968,12 +3969,16 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp4_mac_if_ctrl(rt2x00dev);
+
+	rt2800_bbp_write(rt2x00dev, 31, 0x08);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp_write(rt2x00dev, 3, 0x00);
 	rt2800_bbp_write(rt2x00dev, 4, 0x50);
+
+	rt2800_bbp_write(rt2x00dev, 31, 0x08);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -3982,11 +3987,14 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 {
+	rt2800_bbp_write(rt2x00dev, 31, 0x08);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp4_mac_if_ctrl(rt2x00dev);
+
+	rt2800_bbp_write(rt2x00dev, 31, 0x08);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4105,14 +4113,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2800_is_305x_soc(rt2x00dev) ||
-	    rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT3352) ||
-	    rt2x00_rt(rt2x00dev, RT3572) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 31, 0x08);
-
 	if (rt2x00_rt(rt2x00dev, RT3352))
 		rt2800_bbp_write(rt2x00dev, 47, 0x48);
 
-- 
cgit v0.10.2


From 3420f797536a52fd78ad8b692045bd7fa6a2ab32 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:30 +0200
Subject: rt2800: initialize BBP_R47 on 3352 subroutine

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index c741058..5259936 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3979,6 +3979,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 4, 0x50);
 
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
+
+	rt2800_bbp_write(rt2x00dev, 47, 0x48);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4113,9 +4115,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3352))
-		rt2800_bbp_write(rt2x00dev, 47, 0x48);
-
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 
-- 
cgit v0.10.2


From e379de1297a1edc05250c408af7f474b2a1cbacc Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:31 +0200
Subject: rt2800: initialize BBP_R65 & BBP_R66 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 5259936..18c5925 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3956,14 +3956,21 @@ static void rt2800_init_bbp_early(struct rt2x00_dev *rt2x00dev)
 static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
+
+	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
+	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 {
+	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
+	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 {
+	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
+	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -3971,6 +3978,9 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp4_mac_if_ctrl(rt2x00dev);
 
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
+
+	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
+	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -3981,15 +3991,23 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
 
 	rt2800_bbp_write(rt2x00dev, 47, 0x48);
+
+	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
+	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 {
+	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
+	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
+
+	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
+	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -3997,6 +4015,9 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp4_mac_if_ctrl(rt2x00dev);
 
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
+
+	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
+	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4115,9 +4136,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
-	rt2800_bbp_write(rt2x00dev, 66, 0x38);
-
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
-- 
cgit v0.10.2


From 59dcabb5c12148c2e4d57dfaeea3af2098bd02d2 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:32 +0200
Subject: rt2800: initialize BBP_R68 on proper subroutines

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 18c5925..54a7690 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3981,6 +3981,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 68, 0x0b);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -3994,6 +3996,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 68, 0x0b);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4018,6 +4022,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 68, 0x0b);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4136,12 +4142,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT3352) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 68, 0x0b);
-
 	if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860C)) {
 		rt2800_bbp_write(rt2x00dev, 69, 0x16);
 		rt2800_bbp_write(rt2x00dev, 73, 0x12);
-- 
cgit v0.10.2


From 72ffe1426b47275b464aa946d47b4de10b5e3a8f Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:33 +0200
Subject: rt2800: initialize BBP_R69 - BBP_R77 on proper subroutines

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 54a7690..26feb99 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3959,18 +3959,32 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 69, 0x12);
+	rt2800_bbp_write(rt2x00dev, 73, 0x10);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
+
+	if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860C)) {
+		rt2800_bbp_write(rt2x00dev, 69, 0x16);
+		rt2800_bbp_write(rt2x00dev, 73, 0x12);
+	} else {
+		rt2800_bbp_write(rt2x00dev, 69, 0x12);
+		rt2800_bbp_write(rt2x00dev, 73, 0x10);
+	}
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 69, 0x12);
+	rt2800_bbp_write(rt2x00dev, 73, 0x10);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -3983,6 +3997,13 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 
 	rt2800_bbp_write(rt2x00dev, 68, 0x0b);
+
+	rt2800_bbp_write(rt2x00dev, 69, 0x12);
+	rt2800_bbp_write(rt2x00dev, 73, 0x13);
+	rt2800_bbp_write(rt2x00dev, 75, 0x46);
+	rt2800_bbp_write(rt2x00dev, 76, 0x28);
+
+	rt2800_bbp_write(rt2x00dev, 77, 0x58);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -3998,12 +4019,22 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 
 	rt2800_bbp_write(rt2x00dev, 68, 0x0b);
+
+	rt2800_bbp_write(rt2x00dev, 69, 0x12);
+	rt2800_bbp_write(rt2x00dev, 73, 0x13);
+	rt2800_bbp_write(rt2x00dev, 75, 0x46);
+	rt2800_bbp_write(rt2x00dev, 76, 0x28);
+
+	rt2800_bbp_write(rt2x00dev, 77, 0x59);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 69, 0x12);
+	rt2800_bbp_write(rt2x00dev, 73, 0x10);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4012,6 +4043,9 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 65, 0x2c);
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 69, 0x12);
+	rt2800_bbp_write(rt2x00dev, 73, 0x10);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4024,6 +4058,13 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 66, 0x38);
 
 	rt2800_bbp_write(rt2x00dev, 68, 0x0b);
+
+	rt2800_bbp_write(rt2x00dev, 69, 0x12);
+	rt2800_bbp_write(rt2x00dev, 73, 0x13);
+	rt2800_bbp_write(rt2x00dev, 75, 0x46);
+	rt2800_bbp_write(rt2x00dev, 76, 0x28);
+
+	rt2800_bbp_write(rt2x00dev, 77, 0x59);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4142,27 +4183,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860C)) {
-		rt2800_bbp_write(rt2x00dev, 69, 0x16);
-		rt2800_bbp_write(rt2x00dev, 73, 0x12);
-	} else if (rt2x00_rt(rt2x00dev, RT3290) ||
-		   rt2x00_rt(rt2x00dev, RT3352) ||
-		   rt2x00_rt(rt2x00dev, RT5390) ||
-		   rt2x00_rt(rt2x00dev, RT5392)) {
-		rt2800_bbp_write(rt2x00dev, 69, 0x12);
-		rt2800_bbp_write(rt2x00dev, 73, 0x13);
-		rt2800_bbp_write(rt2x00dev, 75, 0x46);
-		rt2800_bbp_write(rt2x00dev, 76, 0x28);
-
-		if (rt2x00_rt(rt2x00dev, RT3290))
-			rt2800_bbp_write(rt2x00dev, 77, 0x58);
-		else
-			rt2800_bbp_write(rt2x00dev, 77, 0x59);
-	} else {
-		rt2800_bbp_write(rt2x00dev, 69, 0x12);
-		rt2800_bbp_write(rt2x00dev, 73, 0x10);
-	}
-
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 
 	if (rt2x00_rt(rt2x00dev, RT3070) ||
-- 
cgit v0.10.2


From 8d97be386415aa771bbe923072da773ff09ad997 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:34 +0200
Subject: rt2800: initialize BBP_R70 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 26feb99..8ad20db 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3962,6 +3962,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 69, 0x12);
 	rt2800_bbp_write(rt2x00dev, 73, 0x10);
+
+	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -3976,6 +3978,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 69, 0x12);
 		rt2800_bbp_write(rt2x00dev, 73, 0x10);
 	}
+
+	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -3985,6 +3989,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 69, 0x12);
 	rt2800_bbp_write(rt2x00dev, 73, 0x10);
+
+	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4004,6 +4010,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 76, 0x28);
 
 	rt2800_bbp_write(rt2x00dev, 77, 0x58);
+
+	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4026,6 +4034,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 76, 0x28);
 
 	rt2800_bbp_write(rt2x00dev, 77, 0x59);
+
+	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4035,6 +4045,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 69, 0x12);
 	rt2800_bbp_write(rt2x00dev, 73, 0x10);
+
+	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4046,6 +4058,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 69, 0x12);
 	rt2800_bbp_write(rt2x00dev, 73, 0x10);
+
+	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4065,6 +4079,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 76, 0x28);
 
 	rt2800_bbp_write(rt2x00dev, 77, 0x59);
+
+	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4183,8 +4199,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
-
 	if (rt2x00_rt(rt2x00dev, RT3070) ||
 	    rt2x00_rt(rt2x00dev, RT3071) ||
 	    rt2x00_rt(rt2x00dev, RT3090) ||
-- 
cgit v0.10.2


From 43f535e2f998c617bbe1622240b2f3290f577d1e Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:35 +0200
Subject: rt2800: initialize BBP_R74 - BBP_R80 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 8ad20db..508c9c4 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3964,6 +3964,9 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 73, 0x10);
 
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
+
+	rt2800_bbp_write(rt2x00dev, 78, 0x0e);
+	rt2800_bbp_write(rt2x00dev, 80, 0x08);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -3980,6 +3983,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 	}
 
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
+
+	rt2800_bbp_write(rt2x00dev, 81, 0x37);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -3991,6 +3996,10 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 73, 0x10);
 
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
+
+	rt2800_bbp_write(rt2x00dev, 79, 0x13);
+	rt2800_bbp_write(rt2x00dev, 80, 0x05);
+	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4012,6 +4021,11 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 77, 0x58);
 
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
+
+	rt2800_bbp_write(rt2x00dev, 74, 0x0b);
+	rt2800_bbp_write(rt2x00dev, 79, 0x18);
+	rt2800_bbp_write(rt2x00dev, 80, 0x09);
+	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4036,6 +4050,10 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 77, 0x59);
 
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
+
+	rt2800_bbp_write(rt2x00dev, 78, 0x0e);
+	rt2800_bbp_write(rt2x00dev, 80, 0x08);
+	rt2800_bbp_write(rt2x00dev, 81, 0x37);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4047,6 +4065,10 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 73, 0x10);
 
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
+
+	rt2800_bbp_write(rt2x00dev, 79, 0x13);
+	rt2800_bbp_write(rt2x00dev, 80, 0x05);
+	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4060,6 +4082,10 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 73, 0x10);
 
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
+
+	rt2800_bbp_write(rt2x00dev, 79, 0x13);
+	rt2800_bbp_write(rt2x00dev, 80, 0x05);
+	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4081,6 +4107,10 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 77, 0x59);
 
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
+
+	rt2800_bbp_write(rt2x00dev, 79, 0x13);
+	rt2800_bbp_write(rt2x00dev, 80, 0x05);
+	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4199,32 +4229,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3070) ||
-	    rt2x00_rt(rt2x00dev, RT3071) ||
-	    rt2x00_rt(rt2x00dev, RT3090) ||
-	    rt2x00_rt(rt2x00dev, RT3390) ||
-	    rt2x00_rt(rt2x00dev, RT3572) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392)) {
-		rt2800_bbp_write(rt2x00dev, 79, 0x13);
-		rt2800_bbp_write(rt2x00dev, 80, 0x05);
-		rt2800_bbp_write(rt2x00dev, 81, 0x33);
-	} else if (rt2800_is_305x_soc(rt2x00dev)) {
-		rt2800_bbp_write(rt2x00dev, 78, 0x0e);
-		rt2800_bbp_write(rt2x00dev, 80, 0x08);
-	} else if (rt2x00_rt(rt2x00dev, RT3290)) {
-		rt2800_bbp_write(rt2x00dev, 74, 0x0b);
-		rt2800_bbp_write(rt2x00dev, 79, 0x18);
-		rt2800_bbp_write(rt2x00dev, 80, 0x09);
-		rt2800_bbp_write(rt2x00dev, 81, 0x33);
-	} else if (rt2x00_rt(rt2x00dev, RT3352)) {
-		rt2800_bbp_write(rt2x00dev, 78, 0x0e);
-		rt2800_bbp_write(rt2x00dev, 80, 0x08);
-		rt2800_bbp_write(rt2x00dev, 81, 0x37);
-	} else {
-		rt2800_bbp_write(rt2x00dev, 81, 0x37);
-	}
-
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
-- 
cgit v0.10.2


From fa1e34243ff3fb1532ca3b817fd9129ee62d6d06 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:36 +0200
Subject: rt2800: initialize BBP_R82 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 508c9c4..aad340f 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3967,6 +3967,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 
 	rt2800_bbp_write(rt2x00dev, 78, 0x0e);
 	rt2800_bbp_write(rt2x00dev, 80, 0x08);
+
+	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -3985,6 +3987,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 70, 0x0a);
 
 	rt2800_bbp_write(rt2x00dev, 81, 0x37);
+
+	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4000,6 +4004,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 79, 0x13);
 	rt2800_bbp_write(rt2x00dev, 80, 0x05);
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
+
+	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4026,6 +4032,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 79, 0x18);
 	rt2800_bbp_write(rt2x00dev, 80, 0x09);
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
+
+	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4054,6 +4062,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 78, 0x0e);
 	rt2800_bbp_write(rt2x00dev, 80, 0x08);
 	rt2800_bbp_write(rt2x00dev, 81, 0x37);
+
+	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4069,6 +4079,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 79, 0x13);
 	rt2800_bbp_write(rt2x00dev, 80, 0x05);
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
+
+	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4086,6 +4098,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 79, 0x13);
 	rt2800_bbp_write(rt2x00dev, 80, 0x05);
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
+
+	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4111,6 +4125,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 79, 0x13);
 	rt2800_bbp_write(rt2x00dev, 80, 0x05);
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
+
+	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4229,7 +4245,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
-- 
cgit v0.10.2


From 885f2414361709f53ed5566e66f3bd88c9ebe2b5 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:37 +0200
Subject: rt2800: initialize BBP_R83 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index aad340f..79a95a4 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3969,6 +3969,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 80, 0x08);
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
+
+	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -3989,6 +3991,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 81, 0x37);
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
+
+	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4006,6 +4010,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
+
+	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4034,6 +4040,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
+
+	rt2800_bbp_write(rt2x00dev, 83, 0x7a);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4064,6 +4072,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 81, 0x37);
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
+
+	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4081,6 +4091,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
+
+	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4100,6 +4112,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
+
+	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4127,6 +4141,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 81, 0x33);
 
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
+
+	rt2800_bbp_write(rt2x00dev, 83, 0x7a);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4245,13 +4261,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 83, 0x7a);
-	else
-		rt2800_bbp_write(rt2x00dev, 83, 0x6a);
-
 	if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860D))
 		rt2800_bbp_write(rt2x00dev, 84, 0x19);
 	else if (rt2x00_rt(rt2x00dev, RT3290) ||
-- 
cgit v0.10.2


From 3c20a1229dce70b16f7e0f444d23f9b16e15a7e2 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:38 +0200
Subject: rt2800: initialize BBP_R84 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 79a95a4..2f14ede 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3971,6 +3971,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
+
+	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -3993,6 +3995,11 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
+
+	if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860D))
+		rt2800_bbp_write(rt2x00dev, 84, 0x19);
+	else
+		rt2800_bbp_write(rt2x00dev, 84, 0x99);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4012,6 +4019,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
+
+	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4042,6 +4051,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 
 	rt2800_bbp_write(rt2x00dev, 83, 0x7a);
+
+	rt2800_bbp_write(rt2x00dev, 84, 0x9a);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4074,6 +4085,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
+
+	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4093,6 +4106,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
+
+	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4114,6 +4129,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
+
+	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4143,6 +4160,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 82, 0x62);
 
 	rt2800_bbp_write(rt2x00dev, 83, 0x7a);
+
+	rt2800_bbp_write(rt2x00dev, 84, 0x9a);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4261,15 +4280,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860D))
-		rt2800_bbp_write(rt2x00dev, 84, 0x19);
-	else if (rt2x00_rt(rt2x00dev, RT3290) ||
-		 rt2x00_rt(rt2x00dev, RT5390) ||
-		 rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 84, 0x9a);
-	else
-		rt2800_bbp_write(rt2x00dev, 84, 0x99);
-
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
-- 
cgit v0.10.2


From aef9f38b8d1d729935fab916b4581af669baa849 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:39 +0200
Subject: rt2800: initialize BBP_R86 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 2f14ede..dafb52b 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3973,6 +3973,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
+
+	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -4000,6 +4002,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 84, 0x19);
 	else
 		rt2800_bbp_write(rt2x00dev, 84, 0x99);
+
+	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4021,6 +4025,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
+
+	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4053,6 +4059,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 83, 0x7a);
 
 	rt2800_bbp_write(rt2x00dev, 84, 0x9a);
+
+	rt2800_bbp_write(rt2x00dev, 86, 0x38);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4087,6 +4095,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
+
+	rt2800_bbp_write(rt2x00dev, 86, 0x38);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4108,6 +4118,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
+
+	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4131,6 +4143,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 83, 0x6a);
 
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
+
+	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4162,6 +4176,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 83, 0x7a);
 
 	rt2800_bbp_write(rt2x00dev, 84, 0x9a);
+
+	rt2800_bbp_write(rt2x00dev, 86, 0x38);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4280,14 +4296,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT3352) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 86, 0x38);
-	else
-		rt2800_bbp_write(rt2x00dev, 86, 0x00);
-
 	if (rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 88, 0x90);
-- 
cgit v0.10.2


From 9400fa8745d01e4e0e0ec893620800a96c6138ea Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:40 +0200
Subject: rt2800: initialize BBP_R88 on proper subroutines

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index dafb52b..1f50bfb 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4097,6 +4097,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 
 	rt2800_bbp_write(rt2x00dev, 86, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 88, 0x90);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4178,6 +4180,9 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 84, 0x9a);
 
 	rt2800_bbp_write(rt2x00dev, 86, 0x38);
+
+	if (rt2x00_rt(rt2x00dev, RT5392))
+		rt2800_bbp_write(rt2x00dev, 88, 0x90);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4296,10 +4301,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3352) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 88, 0x90);
-
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
-- 
cgit v0.10.2


From 7af987420e9cb7d371adda02e880fcb9b9a6affd Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:41 +0200
Subject: rt2800: initialize BBP_R91 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 1f50bfb..c5a2ca2 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3975,6 +3975,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -4004,6 +4006,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 84, 0x99);
 
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4027,6 +4031,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4061,6 +4067,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 84, 0x9a);
 
 	rt2800_bbp_write(rt2x00dev, 86, 0x38);
+
+	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4099,6 +4107,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 86, 0x38);
 
 	rt2800_bbp_write(rt2x00dev, 88, 0x90);
+
+	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4122,6 +4132,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4147,6 +4159,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 84, 0x99);
 
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4183,6 +4197,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 
 	if (rt2x00_rt(rt2x00dev, RT5392))
 		rt2800_bbp_write(rt2x00dev, 88, 0x90);
+
+	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4301,8 +4317,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	rt2800_bbp_write(rt2x00dev, 91, 0x04);
-
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
-- 
cgit v0.10.2


From b4e121d1d2a6a9fb59a900c755d6c1924334cf79 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:42 +0200
Subject: rt2800: initialize BBP_R92 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index c5a2ca2..3543847 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3977,6 +3977,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
+
+	rt2800_bbp_write(rt2x00dev, 92, 0x00);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -4008,6 +4010,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
+
+	rt2800_bbp_write(rt2x00dev, 92, 0x00);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4033,6 +4037,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
+
+	rt2800_bbp_write(rt2x00dev, 92, 0x00);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4069,6 +4075,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 86, 0x38);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
+
+	rt2800_bbp_write(rt2x00dev, 92, 0x02);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4109,6 +4117,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 88, 0x90);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
+
+	rt2800_bbp_write(rt2x00dev, 92, 0x02);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4134,6 +4144,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
+
+	rt2800_bbp_write(rt2x00dev, 92, 0x00);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4161,6 +4173,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 86, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
+
+	rt2800_bbp_write(rt2x00dev, 92, 0x00);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4199,6 +4213,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 88, 0x90);
 
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
+
+	rt2800_bbp_write(rt2x00dev, 92, 0x02);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4317,14 +4333,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT3352) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 92, 0x02);
-	else
-		rt2800_bbp_write(rt2x00dev, 92, 0x00);
-
 	if (rt2x00_rt(rt2x00dev, RT5392)) {
 		rt2800_bbp_write(rt2x00dev, 95, 0x9a);
 		rt2800_bbp_write(rt2x00dev, 98, 0x12);
-- 
cgit v0.10.2


From 90fed535614b1fab52f088b98a7dadb45a18d463 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:43 +0200
Subject: rt2800: move initialization of BBP_95 & BBP_98 to 53xx subroutine

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 3543847..d985711 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4215,6 +4215,11 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	rt2800_bbp_write(rt2x00dev, 92, 0x02);
+
+	if (rt2x00_rt(rt2x00dev, RT5392)) {
+		rt2800_bbp_write(rt2x00dev, 95, 0x9a);
+		rt2800_bbp_write(rt2x00dev, 98, 0x12);
+	}
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4333,11 +4338,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT5392)) {
-		rt2800_bbp_write(rt2x00dev, 95, 0x9a);
-		rt2800_bbp_write(rt2x00dev, 98, 0x12);
-	}
-
 	if (rt2x00_rt_rev_gte(rt2x00dev, RT3070, REV_RT3070F) ||
 	    rt2x00_rt_rev_gte(rt2x00dev, RT3071, REV_RT3071E) ||
 	    rt2x00_rt_rev_gte(rt2x00dev, RT3090, REV_RT3090E) ||
-- 
cgit v0.10.2


From 672d11889834d7f34c70d79831d23020aed9c7ad Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:44 +0200
Subject: rt2800: initialize BBP_R103 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index d985711..291542f 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3979,6 +3979,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	rt2800_bbp_write(rt2x00dev, 92, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -4012,6 +4014,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	rt2800_bbp_write(rt2x00dev, 92, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 103, 0x00);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4039,6 +4043,13 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	rt2800_bbp_write(rt2x00dev, 92, 0x00);
+
+	if (rt2x00_rt_rev_gte(rt2x00dev, RT3070, REV_RT3070F) ||
+	    rt2x00_rt_rev_gte(rt2x00dev, RT3071, REV_RT3071E) ||
+	    rt2x00_rt_rev_gte(rt2x00dev, RT3090, REV_RT3090E))
+		rt2800_bbp_write(rt2x00dev, 103, 0xc0);
+	else
+		rt2800_bbp_write(rt2x00dev, 103, 0x00);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4077,6 +4088,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	rt2800_bbp_write(rt2x00dev, 92, 0x02);
+
+	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4119,6 +4132,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	rt2800_bbp_write(rt2x00dev, 92, 0x02);
+
+	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4146,6 +4161,11 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	rt2800_bbp_write(rt2x00dev, 92, 0x00);
+
+	if (rt2x00_rt_rev_gte(rt2x00dev, RT3390, REV_RT3390E))
+		rt2800_bbp_write(rt2x00dev, 103, 0xc0);
+	else
+		rt2800_bbp_write(rt2x00dev, 103, 0x00);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4175,6 +4195,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 91, 0x04);
 
 	rt2800_bbp_write(rt2x00dev, 92, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4220,6 +4242,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 95, 0x9a);
 		rt2800_bbp_write(rt2x00dev, 98, 0x12);
 	}
+
+	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4338,20 +4362,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt_rev_gte(rt2x00dev, RT3070, REV_RT3070F) ||
-	    rt2x00_rt_rev_gte(rt2x00dev, RT3071, REV_RT3071E) ||
-	    rt2x00_rt_rev_gte(rt2x00dev, RT3090, REV_RT3090E) ||
-	    rt2x00_rt_rev_gte(rt2x00dev, RT3390, REV_RT3390E) ||
-	    rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT3352) ||
-	    rt2x00_rt(rt2x00dev, RT3572) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392) ||
-	    rt2800_is_305x_soc(rt2x00dev))
-		rt2800_bbp_write(rt2x00dev, 103, 0xc0);
-	else
-		rt2800_bbp_write(rt2x00dev, 103, 0x00);
-
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT3352) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
-- 
cgit v0.10.2


From 1ad4408a1ea766774a6d4e73ed6a23bcaf9d1d32 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:45 +0200
Subject: rt2800: initialize BBP_R104 on proper subroutines

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 291542f..2382213 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4090,6 +4090,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 92, 0x02);
 
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
+
+	rt2800_bbp_write(rt2x00dev, 104, 0x92);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4134,6 +4136,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 92, 0x02);
 
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
+
+	rt2800_bbp_write(rt2x00dev, 104, 0x92);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4244,6 +4248,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	}
 
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
+
+	rt2800_bbp_write(rt2x00dev, 104, 0x92);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4362,12 +4368,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT3352) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 104, 0x92);
-
 	if (rt2800_is_305x_soc(rt2x00dev))
 		rt2800_bbp_write(rt2x00dev, 105, 0x01);
 	else if (rt2x00_rt(rt2x00dev, RT3290))
-- 
cgit v0.10.2


From 49d611186a2dfdf8c10e090450a570ba929bd393 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:46 +0200
Subject: rt2800: initialize BBP_R105 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 2382213..0970e40 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3981,6 +3981,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 92, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
+
+	rt2800_bbp_write(rt2x00dev, 105, 0x01);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -4016,6 +4018,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 92, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 103, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 105, 0x05);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4050,6 +4054,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 	else
 		rt2800_bbp_write(rt2x00dev, 103, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 105, 0x05);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4092,6 +4098,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 
 	rt2800_bbp_write(rt2x00dev, 104, 0x92);
+
+	rt2800_bbp_write(rt2x00dev, 105, 0x1c);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4138,6 +4146,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 
 	rt2800_bbp_write(rt2x00dev, 104, 0x92);
+
+	rt2800_bbp_write(rt2x00dev, 105, 0x34);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4170,6 +4180,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 	else
 		rt2800_bbp_write(rt2x00dev, 103, 0x00);
+
+	rt2800_bbp_write(rt2x00dev, 105, 0x05);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4201,6 +4213,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 92, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
+
+	rt2800_bbp_write(rt2x00dev, 105, 0x05);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4250,6 +4264,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 
 	rt2800_bbp_write(rt2x00dev, 104, 0x92);
+
+	rt2800_bbp_write(rt2x00dev, 105, 0x3c);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4368,18 +4384,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2800_is_305x_soc(rt2x00dev))
-		rt2800_bbp_write(rt2x00dev, 105, 0x01);
-	else if (rt2x00_rt(rt2x00dev, RT3290))
-		rt2800_bbp_write(rt2x00dev, 105, 0x1c);
-	else if (rt2x00_rt(rt2x00dev, RT3352))
-		rt2800_bbp_write(rt2x00dev, 105, 0x34);
-	else if (rt2x00_rt(rt2x00dev, RT5390) ||
-		 rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 105, 0x3c);
-	else
-		rt2800_bbp_write(rt2x00dev, 105, 0x05);
-
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT5390))
 		rt2800_bbp_write(rt2x00dev, 106, 0x03);
-- 
cgit v0.10.2


From f867085edeab37d5cce62e266615e540cb85ae43 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:47 +0200
Subject: rt2800: initialize BBP_R106 on all subroutines (except 5592)

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 0970e40..eb44ba8 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3983,6 +3983,8 @@ static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 
 	rt2800_bbp_write(rt2x00dev, 105, 0x01);
+
+	rt2800_bbp_write(rt2x00dev, 106, 0x35);
 }
 
 static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
@@ -4020,6 +4022,8 @@ static void rt2800_init_bbp_28xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 103, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 105, 0x05);
+
+	rt2800_bbp_write(rt2x00dev, 106, 0x35);
 }
 
 static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
@@ -4056,6 +4060,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 103, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 105, 0x05);
+
+	rt2800_bbp_write(rt2x00dev, 106, 0x35);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4100,6 +4106,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 104, 0x92);
 
 	rt2800_bbp_write(rt2x00dev, 105, 0x1c);
+
+	rt2800_bbp_write(rt2x00dev, 106, 0x03);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4148,6 +4156,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 104, 0x92);
 
 	rt2800_bbp_write(rt2x00dev, 105, 0x34);
+
+	rt2800_bbp_write(rt2x00dev, 106, 0x05);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4182,6 +4192,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 103, 0x00);
 
 	rt2800_bbp_write(rt2x00dev, 105, 0x05);
+
+	rt2800_bbp_write(rt2x00dev, 106, 0x35);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4215,6 +4227,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 103, 0xc0);
 
 	rt2800_bbp_write(rt2x00dev, 105, 0x05);
+
+	rt2800_bbp_write(rt2x00dev, 106, 0x35);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4266,6 +4280,13 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 104, 0x92);
 
 	rt2800_bbp_write(rt2x00dev, 105, 0x3c);
+
+	if (rt2x00_rt(rt2x00dev, RT5390))
+		rt2800_bbp_write(rt2x00dev, 106, 0x03);
+	else if (rt2x00_rt(rt2x00dev, RT5392))
+		rt2800_bbp_write(rt2x00dev, 106, 0x12);
+	else
+		WARN_ON(1);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4384,16 +4405,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT5390))
-		rt2800_bbp_write(rt2x00dev, 106, 0x03);
-	else if (rt2x00_rt(rt2x00dev, RT3352))
-		rt2800_bbp_write(rt2x00dev, 106, 0x05);
-	else if (rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 106, 0x12);
-	else
-		rt2800_bbp_write(rt2x00dev, 106, 0x35);
-
 	if (rt2x00_rt(rt2x00dev, RT3352))
 		rt2800_bbp_write(rt2x00dev, 120, 0x50);
 
-- 
cgit v0.10.2


From 46b90d3216af851fe8c1b97a2cac95ee129443a9 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:48 +0200
Subject: rt2800: initialize BBP_R120 on 3352 subroutine

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index eb44ba8..b860abc 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4158,6 +4158,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 105, 0x34);
 
 	rt2800_bbp_write(rt2x00dev, 106, 0x05);
+
+	rt2800_bbp_write(rt2x00dev, 120, 0x50);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4405,9 +4407,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3352))
-		rt2800_bbp_write(rt2x00dev, 120, 0x50);
-
 	if (rt2x00_rt(rt2x00dev, RT3290) ||
 	    rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392))
-- 
cgit v0.10.2


From f2b6777cb631c6d8ec4f8479e34eaec1133659d4 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:49 +0200
Subject: rt2800: initialize BBP_R128 on proper subroutines

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index b860abc..0d2c46f 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4108,6 +4108,8 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 105, 0x1c);
 
 	rt2800_bbp_write(rt2x00dev, 106, 0x03);
+
+	rt2800_bbp_write(rt2x00dev, 128, 0x12);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4289,6 +4291,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 106, 0x12);
 	else
 		WARN_ON(1);
+
+	rt2800_bbp_write(rt2x00dev, 128, 0x12);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4407,11 +4411,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392))
-		rt2800_bbp_write(rt2x00dev, 128, 0x12);
-
 	if (rt2x00_rt(rt2x00dev, RT5392)) {
 		rt2800_bbp_write(rt2x00dev, 134, 0xd0);
 		rt2800_bbp_write(rt2x00dev, 135, 0xf6);
-- 
cgit v0.10.2


From 7291714099627183f0f439de68c9111e1c26c50e Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:50 +0200
Subject: rt2800: initialize BBP_R134 & BBP_R135 on 53xx subroutine

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 0d2c46f..f54d04e 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4293,6 +4293,11 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 		WARN_ON(1);
 
 	rt2800_bbp_write(rt2x00dev, 128, 0x12);
+
+	if (rt2x00_rt(rt2x00dev, RT5392)) {
+		rt2800_bbp_write(rt2x00dev, 134, 0xd0);
+		rt2800_bbp_write(rt2x00dev, 135, 0xf6);
+	}
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4411,11 +4416,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT5392)) {
-		rt2800_bbp_write(rt2x00dev, 134, 0xd0);
-		rt2800_bbp_write(rt2x00dev, 135, 0xf6);
-	}
-
 	if (rt2x00_rt(rt2x00dev, RT3352))
 		rt2800_bbp_write(rt2x00dev, 137, 0x0f);
 
-- 
cgit v0.10.2


From b7feb9ba64c53f93412b61351e00663bb24959ef Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:51 +0200
Subject: rt2800: initialize BBP_R104 on 3352 subroutine

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index f54d04e..abaa685 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4162,6 +4162,8 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 106, 0x05);
 
 	rt2800_bbp_write(rt2x00dev, 120, 0x50);
+
+	rt2800_bbp_write(rt2x00dev, 137, 0x0f);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4416,9 +4418,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3352))
-		rt2800_bbp_write(rt2x00dev, 137, 0x0f);
-
 	if (rt2x00_rt(rt2x00dev, RT3071) ||
 	    rt2x00_rt(rt2x00dev, RT3090) ||
 	    rt2x00_rt(rt2x00dev, RT3390) ||
-- 
cgit v0.10.2


From 5df1ff3a22ebfd2749092227d7d1ea4599488c4e Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:52 +0200
Subject: rt2800: initialize BBP_R108 on proper subroutines

Create helper function and move initialization to subroutines.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index abaa685..d0d65dd 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3953,6 +3953,20 @@ static void rt2800_init_bbp_early(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 106, 0x35);
 }
 
+static void rt2800_disable_unused_dac_adc(struct rt2x00_dev *rt2x00dev)
+{
+	u16 eeprom;
+	u8 value;
+
+	rt2800_bbp_read(rt2x00dev, 138, &value);
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF0, &eeprom);
+	if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_TXPATH) == 1)
+		value |= 0x20;
+	if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_RXPATH) == 1)
+		value &= ~0x02;
+	rt2800_bbp_write(rt2x00dev, 138, value);
+}
+
 static void rt2800_init_bbp_305x_soc(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
@@ -4062,6 +4076,10 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 105, 0x05);
 
 	rt2800_bbp_write(rt2x00dev, 106, 0x35);
+
+	if (rt2x00_rt(rt2x00dev, RT3071) ||
+	    rt2x00_rt(rt2x00dev, RT3090))
+		rt2800_disable_unused_dac_adc(rt2x00dev);
 }
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
@@ -4200,6 +4218,8 @@ static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 105, 0x05);
 
 	rt2800_bbp_write(rt2x00dev, 106, 0x35);
+
+	rt2800_disable_unused_dac_adc(rt2x00dev);
 }
 
 static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
@@ -4235,6 +4255,8 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 105, 0x05);
 
 	rt2800_bbp_write(rt2x00dev, 106, 0x35);
+
+	rt2800_disable_unused_dac_adc(rt2x00dev);
 }
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
@@ -4300,6 +4322,8 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 134, 0xd0);
 		rt2800_bbp_write(rt2x00dev, 135, 0xf6);
 	}
+
+	rt2800_disable_unused_dac_adc(rt2x00dev);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4418,23 +4442,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3071) ||
-	    rt2x00_rt(rt2x00dev, RT3090) ||
-	    rt2x00_rt(rt2x00dev, RT3390) ||
-	    rt2x00_rt(rt2x00dev, RT3572) ||
-	    rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392)) {
-		rt2800_bbp_read(rt2x00dev, 138, &value);
-
-		rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF0, &eeprom);
-		if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_TXPATH) == 1)
-			value |= 0x20;
-		if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_RXPATH) == 1)
-			value &= ~0x02;
-
-		rt2800_bbp_write(rt2x00dev, 138, value);
-	}
-
 	if (rt2x00_rt(rt2x00dev, RT3290)) {
 		rt2800_bbp_write(rt2x00dev, 67, 0x24);
 		rt2800_bbp_write(rt2x00dev, 143, 0x04);
-- 
cgit v0.10.2


From c2da5273aefef4dc1a6d114ddc4eb807ea2bea3a Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:53 +0200
Subject: rt2800: move 3352 specific bbp initialization

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index d0d65dd..2d00fd8 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4182,6 +4182,26 @@ static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 120, 0x50);
 
 	rt2800_bbp_write(rt2x00dev, 137, 0x0f);
+
+	rt2800_bbp_write(rt2x00dev, 163, 0xbd);
+	/* Set ITxBF timeout to 0x9c40=1000msec */
+	rt2800_bbp_write(rt2x00dev, 179, 0x02);
+	rt2800_bbp_write(rt2x00dev, 180, 0x00);
+	rt2800_bbp_write(rt2x00dev, 182, 0x40);
+	rt2800_bbp_write(rt2x00dev, 180, 0x01);
+	rt2800_bbp_write(rt2x00dev, 182, 0x9c);
+	rt2800_bbp_write(rt2x00dev, 179, 0x00);
+	/* Reprogram the inband interface to put right values in RXWI */
+	rt2800_bbp_write(rt2x00dev, 142, 0x04);
+	rt2800_bbp_write(rt2x00dev, 143, 0x3b);
+	rt2800_bbp_write(rt2x00dev, 142, 0x06);
+	rt2800_bbp_write(rt2x00dev, 143, 0xa0);
+	rt2800_bbp_write(rt2x00dev, 142, 0x07);
+	rt2800_bbp_write(rt2x00dev, 143, 0xa1);
+	rt2800_bbp_write(rt2x00dev, 142, 0x08);
+	rt2800_bbp_write(rt2x00dev, 143, 0xa2);
+
+	rt2800_bbp_write(rt2x00dev, 148, 0xc8);
 }
 
 static void rt2800_init_bbp_3390(struct rt2x00_dev *rt2x00dev)
@@ -4465,28 +4485,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		rt2800_bbp_write(rt2x00dev, 3, value);
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3352)) {
-		rt2800_bbp_write(rt2x00dev, 163, 0xbd);
-		/* Set ITxBF timeout to 0x9c40=1000msec */
-		rt2800_bbp_write(rt2x00dev, 179, 0x02);
-		rt2800_bbp_write(rt2x00dev, 180, 0x00);
-		rt2800_bbp_write(rt2x00dev, 182, 0x40);
-		rt2800_bbp_write(rt2x00dev, 180, 0x01);
-		rt2800_bbp_write(rt2x00dev, 182, 0x9c);
-		rt2800_bbp_write(rt2x00dev, 179, 0x00);
-		/* Reprogram the inband interface to put right values in RXWI */
-		rt2800_bbp_write(rt2x00dev, 142, 0x04);
-		rt2800_bbp_write(rt2x00dev, 143, 0x3b);
-		rt2800_bbp_write(rt2x00dev, 142, 0x06);
-		rt2800_bbp_write(rt2x00dev, 143, 0xa0);
-		rt2800_bbp_write(rt2x00dev, 142, 0x07);
-		rt2800_bbp_write(rt2x00dev, 143, 0xa1);
-		rt2800_bbp_write(rt2x00dev, 142, 0x08);
-		rt2800_bbp_write(rt2x00dev, 143, 0xa2);
-
-		rt2800_bbp_write(rt2x00dev, 148, 0xc8);
-	}
-
 	if (rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392)) {
 		int ant, div_mode;
-- 
cgit v0.10.2


From 6addb24eefd36ea4d69dfa6587300943bb037b5d Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:54 +0200
Subject: rt2800: move 3290 specific bbp initialization

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 2d00fd8..527c114 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4084,6 +4084,8 @@ static void rt2800_init_bbp_30xx(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 {
+	u8 value;
+
 	rt2800_bbp4_mac_if_ctrl(rt2x00dev);
 
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
@@ -4128,6 +4130,27 @@ static void rt2800_init_bbp_3290(struct rt2x00_dev *rt2x00dev)
 	rt2800_bbp_write(rt2x00dev, 106, 0x03);
 
 	rt2800_bbp_write(rt2x00dev, 128, 0x12);
+
+	rt2800_bbp_write(rt2x00dev, 67, 0x24);
+	rt2800_bbp_write(rt2x00dev, 143, 0x04);
+	rt2800_bbp_write(rt2x00dev, 142, 0x99);
+	rt2800_bbp_write(rt2x00dev, 150, 0x30);
+	rt2800_bbp_write(rt2x00dev, 151, 0x2e);
+	rt2800_bbp_write(rt2x00dev, 152, 0x20);
+	rt2800_bbp_write(rt2x00dev, 153, 0x34);
+	rt2800_bbp_write(rt2x00dev, 154, 0x40);
+	rt2800_bbp_write(rt2x00dev, 155, 0x3b);
+	rt2800_bbp_write(rt2x00dev, 253, 0x04);
+
+	rt2800_bbp_read(rt2x00dev, 47, &value);
+	rt2x00_set_field8(&value, BBP47_TSSI_ADC6, 1);
+	rt2800_bbp_write(rt2x00dev, 47, value);
+
+	/* Use 5-bit ADC for Acquisition and 8-bit ADC for data */
+	rt2800_bbp_read(rt2x00dev, 3, &value);
+	rt2x00_set_field8(&value, BBP3_ADC_MODE_SWITCH, 1);
+	rt2x00_set_field8(&value, BBP3_ADC_INIT_MODE, 1);
+	rt2800_bbp_write(rt2x00dev, 3, value);
 }
 
 static void rt2800_init_bbp_3352(struct rt2x00_dev *rt2x00dev)
@@ -4462,29 +4485,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT3290)) {
-		rt2800_bbp_write(rt2x00dev, 67, 0x24);
-		rt2800_bbp_write(rt2x00dev, 143, 0x04);
-		rt2800_bbp_write(rt2x00dev, 142, 0x99);
-		rt2800_bbp_write(rt2x00dev, 150, 0x30);
-		rt2800_bbp_write(rt2x00dev, 151, 0x2e);
-		rt2800_bbp_write(rt2x00dev, 152, 0x20);
-		rt2800_bbp_write(rt2x00dev, 153, 0x34);
-		rt2800_bbp_write(rt2x00dev, 154, 0x40);
-		rt2800_bbp_write(rt2x00dev, 155, 0x3b);
-		rt2800_bbp_write(rt2x00dev, 253, 0x04);
-
-		rt2800_bbp_read(rt2x00dev, 47, &value);
-		rt2x00_set_field8(&value, BBP47_TSSI_ADC6, 1);
-		rt2800_bbp_write(rt2x00dev, 47, value);
-
-		/* Use 5-bit ADC for Acquisition and 8-bit ADC for data */
-		rt2800_bbp_read(rt2x00dev, 3, &value);
-		rt2x00_set_field8(&value, BBP3_ADC_MODE_SWITCH, 1);
-		rt2x00_set_field8(&value, BBP3_ADC_INIT_MODE, 1);
-		rt2800_bbp_write(rt2x00dev, 3, value);
-	}
-
 	if (rt2x00_rt(rt2x00dev, RT5390) ||
 	    rt2x00_rt(rt2x00dev, RT5392)) {
 		int ant, div_mode;
-- 
cgit v0.10.2


From 32ef8f499262309478f0225f5fc33910e1c8e199 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 18 May 2013 14:03:55 +0200
Subject: rt2800: move 53xx specific bbp initialization

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 527c114..ead3a3e 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4304,6 +4304,10 @@ static void rt2800_init_bbp_3572(struct rt2x00_dev *rt2x00dev)
 
 static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 {
+	int ant, div_mode;
+	u16 eeprom;
+	u8 value;
+
 	rt2800_bbp4_mac_if_ctrl(rt2x00dev);
 
 	rt2800_bbp_write(rt2x00dev, 31, 0x08);
@@ -4367,6 +4371,43 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	}
 
 	rt2800_disable_unused_dac_adc(rt2x00dev);
+
+	rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom);
+	div_mode = rt2x00_get_field16(eeprom,
+				      EEPROM_NIC_CONF1_ANT_DIVERSITY);
+	ant = (div_mode == 3) ? 1 : 0;
+
+	/* check if this is a Bluetooth combo card */
+	if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+		u32 reg;
+
+		rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
+		rt2x00_set_field32(&reg, GPIO_CTRL_DIR3, 0);
+		rt2x00_set_field32(&reg, GPIO_CTRL_DIR6, 0);
+		rt2x00_set_field32(&reg, GPIO_CTRL_VAL3, 0);
+		rt2x00_set_field32(&reg, GPIO_CTRL_VAL6, 0);
+		if (ant == 0)
+			rt2x00_set_field32(&reg, GPIO_CTRL_VAL3, 1);
+		else if (ant == 1)
+			rt2x00_set_field32(&reg, GPIO_CTRL_VAL6, 1);
+		rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
+	}
+
+	/* This chip has hardware antenna diversity*/
+	if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
+		rt2800_bbp_write(rt2x00dev, 150, 0); /* Disable Antenna Software OFDM */
+		rt2800_bbp_write(rt2x00dev, 151, 0); /* Disable Antenna Software CCK */
+		rt2800_bbp_write(rt2x00dev, 154, 0); /* Clear previously selected antenna */
+	}
+
+	rt2800_bbp_read(rt2x00dev, 152, &value);
+	if (ant == 0)
+		rt2x00_set_field8(&value, BBP152_RX_DEFAULT_ANT, 1);
+	else
+		rt2x00_set_field8(&value, BBP152_RX_DEFAULT_ANT, 0);
+	rt2800_bbp_write(rt2x00dev, 152, value);
+
+	rt2800_init_freq_calibration(rt2x00dev);
 }
 
 static void rt2800_init_bbp_5592(struct rt2x00_dev *rt2x00dev)
@@ -4485,48 +4526,6 @@ static void rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
 		return;
 	}
 
-	if (rt2x00_rt(rt2x00dev, RT5390) ||
-	    rt2x00_rt(rt2x00dev, RT5392)) {
-		int ant, div_mode;
-
-		rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom);
-		div_mode = rt2x00_get_field16(eeprom,
-					      EEPROM_NIC_CONF1_ANT_DIVERSITY);
-		ant = (div_mode == 3) ? 1 : 0;
-
-		/* check if this is a Bluetooth combo card */
-		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
-			u32 reg;
-
-			rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
-			rt2x00_set_field32(&reg, GPIO_CTRL_DIR3, 0);
-			rt2x00_set_field32(&reg, GPIO_CTRL_DIR6, 0);
-			rt2x00_set_field32(&reg, GPIO_CTRL_VAL3, 0);
-			rt2x00_set_field32(&reg, GPIO_CTRL_VAL6, 0);
-			if (ant == 0)
-				rt2x00_set_field32(&reg, GPIO_CTRL_VAL3, 1);
-			else if (ant == 1)
-				rt2x00_set_field32(&reg, GPIO_CTRL_VAL6, 1);
-			rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
-		}
-
-		/* This chip has hardware antenna diversity*/
-		if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390R)) {
-			rt2800_bbp_write(rt2x00dev, 150, 0); /* Disable Antenna Software OFDM */
-			rt2800_bbp_write(rt2x00dev, 151, 0); /* Disable Antenna Software CCK */
-			rt2800_bbp_write(rt2x00dev, 154, 0); /* Clear previously selected antenna */
-		}
-
-		rt2800_bbp_read(rt2x00dev, 152, &value);
-		if (ant == 0)
-			rt2x00_set_field8(&value, BBP152_RX_DEFAULT_ANT, 1);
-		else
-			rt2x00_set_field8(&value, BBP152_RX_DEFAULT_ANT, 0);
-		rt2800_bbp_write(rt2x00dev, 152, value);
-
-		rt2800_init_freq_calibration(rt2x00dev);
-	}
-
 	for (i = 0; i < EEPROM_BBP_SIZE; i++) {
 		rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
 
-- 
cgit v0.10.2


From 110dea0008c40a20f1ce280b636f87fff58a7403 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 23 May 2013 17:10:43 +0800
Subject: wil6210: use kfree_skb() instead of kfree()

Use kfree_skb() instead of kfree() to free sk_buff.

Introduced by commit e270045b569cc7030abd29857f3a4e7906524ec0
(wil6210: Sanity check for reported DMA length)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 082f76b..00dffed 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -369,7 +369,7 @@ static struct sk_buff *wil_vring_reap_rx(struct wil6210_priv *wil,
 
 	if (dmalen > sz) {
 		wil_err(wil, "Rx size too large: %d bytes!\n", dmalen);
-		kfree(skb);
+		kfree_skb(skb);
 		return NULL;
 	}
 	skb_trim(skb, dmalen);
-- 
cgit v0.10.2


From bbf71a8f35cf52e97ba129401f82ccefd249c757 Mon Sep 17 00:00:00 2001
From: Nishant Sarmukadam <nishants@marvell.com>
Date: Fri, 24 May 2013 14:42:25 +0530
Subject: mwl8k: Fix the firmware hang issue for 8764

The firmware hang issue is not seen very often,
though it is still seen sometimes (once in 12
hours in local tests). The changes in the driver
,to interrupt the firmware, are needed when we
detect that firmware is stuck and when the host
queues are full and we begin to drop packets.
This is to ensure that the firmware does not
miss any PPA_RDY interrupts to cause the firmware
restart dont miss PPA_READY interrupt for SC2

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 6820fce..a3707fd 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -1548,7 +1548,7 @@ static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
 	if (!priv->pending_tx_pkts)
 		return 0;
 
-	retry = 0;
+	retry = 1;
 	rc = 0;
 
 	spin_lock_bh(&priv->tx_lock);
@@ -1572,13 +1572,19 @@ static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
 
 		spin_lock_bh(&priv->tx_lock);
 
-		if (timeout) {
+		if (timeout || !priv->pending_tx_pkts) {
 			WARN_ON(priv->pending_tx_pkts);
 			if (retry)
 				wiphy_notice(hw->wiphy, "tx rings drained\n");
 			break;
 		}
 
+		if (retry) {
+			mwl8k_tx_start(priv);
+			retry = 0;
+			continue;
+		}
+
 		if (priv->pending_tx_pkts < oldcount) {
 			wiphy_notice(hw->wiphy,
 				     "waiting for tx rings to drain (%d -> %d pkts)\n",
@@ -2055,6 +2061,7 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw,
 				mwl8k_remove_stream(hw, stream);
 				spin_unlock(&priv->stream_lock);
 			}
+			mwl8k_tx_start(priv);
 			spin_unlock_bh(&priv->tx_lock);
 			pci_unmap_single(priv->pdev, dma, skb->len,
 					 PCI_DMA_TODEVICE);
-- 
cgit v0.10.2


From 5e4b6f5698421d94226cc2f80eae6d613c9acef8 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Thu, 16 May 2013 20:11:08 +0300
Subject: cfg80211: Allow TDLS peer AID to be configured for VHT

VHT uses peer AID in the PARTIAL_AID field in TDLS frames. The current
design for TDLS is to first add a dummy STA entry before completing TDLS
Setup and then update information on this STA entry based on what was
received from the peer during the setup exchange.

In theory, this could use NL80211_ATTR_STA_AID to set the peer AID just
like this is used in AP mode to set the AID of an association station.
However, existing cfg80211 validation rules prevent this attribute from
being used with set_station operation. To avoid interoperability issues
between different kernel and user space version combinations, introduce
a new nl80211 attribute for the purpose of setting TDLS peer AID. This
attribute can be used in both the new_station and set_station
operations. It is not supposed to be allowed to change the AID value
during the lifetime of the STA entry, but that validation is left for
drivers to do in the change_station callback.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 0632071..32b060e 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1431,6 +1431,11 @@ enum nl80211_commands {
  * @NL80211_ATTR_MAX_CRIT_PROT_DURATION: duration in milliseconds in which
  *      the connection should have increased reliability (u16).
  *
+ * @NL80211_ATTR_PEER_AID: Association ID for the peer TDLS station (u16).
+ *	This is similar to @NL80211_ATTR_STA_AID but with a difference of being
+ *	allowed to be used with the first @NL80211_CMD_SET_STATION command to
+ *	update a TDLS peer STA entry.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1729,6 +1734,8 @@ enum nl80211_attrs {
 	NL80211_ATTR_CRIT_PROT_ID,
 	NL80211_ATTR_MAX_CRIT_PROT_DURATION,
 
+	NL80211_ATTR_PEER_AID,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5f10f7a..14276af 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -378,6 +378,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
 	[NL80211_ATTR_MDID] = { .type = NLA_U16 },
 	[NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
 				  .len = IEEE80211_MAX_DATA_LEN },
+	[NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
 };
 
 /* policy for the key attributes */
@@ -3872,6 +3873,8 @@ static int nl80211_set_station_tdls(struct genl_info *info,
 				    struct station_parameters *params)
 {
 	/* Dummy STA entry gets updated once the peer capabilities are known */
+	if (info->attrs[NL80211_ATTR_PEER_AID])
+		params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
 	if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
 		params->ht_capa =
 			nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
@@ -4012,7 +4015,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
 		return -EINVAL;
 
-	if (!info->attrs[NL80211_ATTR_STA_AID])
+	if (!info->attrs[NL80211_ATTR_STA_AID] &&
+	    !info->attrs[NL80211_ATTR_PEER_AID])
 		return -EINVAL;
 
 	mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
@@ -4023,7 +4027,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	params.listen_interval =
 		nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
 
-	params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
+	if (info->attrs[NL80211_ATTR_STA_AID])
+		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
+	else
+		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
 	if (!params.aid || params.aid > IEEE80211_MAX_AID)
 		return -EINVAL;
 
-- 
cgit v0.10.2


From d4a5a48976d12ab340ed34605b5f5049b123d868 Mon Sep 17 00:00:00 2001
From: Ashok Nagarajan <ashok@cozybit.com>
Date: Mon, 13 May 2013 17:08:04 -0700
Subject: mac80211: Move mesh estab_plinks outside mesh_stats debug group

As estab_plinks is not a statistics member, don't show its debug information
along with other mesh stat members

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 14abcf4..f83074f 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -471,6 +471,8 @@ __IEEE80211_IF_FILE_W(tsf);
 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
 
 #ifdef CONFIG_MAC80211_MESH
+IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
+
 /* Mesh stats attributes */
 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
@@ -480,7 +482,6 @@ IEEE80211_IF_FILE(dropped_frames_congestion,
 		  u.mesh.mshstats.dropped_frames_congestion, DEC);
 IEEE80211_IF_FILE(dropped_frames_no_route,
 		  u.mesh.mshstats.dropped_frames_no_route, DEC);
-IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
 
 /* Mesh parameters */
 IEEE80211_IF_FILE(dot11MeshMaxRetries,
@@ -583,6 +584,7 @@ static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD_MODE(tsf, 0600);
+	DEBUGFS_ADD_MODE(estab_plinks, 0400);
 }
 
 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
@@ -598,7 +600,6 @@ static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
 	MESHSTATS_ADD(dropped_frames_ttl);
 	MESHSTATS_ADD(dropped_frames_no_route);
 	MESHSTATS_ADD(dropped_frames_congestion);
-	MESHSTATS_ADD(estab_plinks);
 #undef MESHSTATS_ADD
 }
 
-- 
cgit v0.10.2


From b422c6cd7e93bb613030f14d7d8a0cc73f115629 Mon Sep 17 00:00:00 2001
From: Ashok Nagarajan <ashok@cozybit.com>
Date: Fri, 10 May 2013 17:50:51 -0700
Subject: {cfg,mac}80211: move mandatory rates calculation to cfg80211

Move mandatory rates calculation to cfg80211, shared with non mac80211 drivers.

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
[extend documentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 32a2f1b..58f6302 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3005,6 +3005,15 @@ struct ieee80211_rate *
 ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
 			    u32 basic_rates, int bitrate);
 
+/**
+ * ieee80211_mandatory_rates - get mandatory rates for a given band
+ * @sband: the band to look for rates in
+ *
+ * This function returns a bitmap of the mandatory rates for the given
+ * band, bits are set according to the rate position in the bitrates array.
+ */
+u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband);
+
 /*
  * Radiotap parsing functions -- for controlled injection support
  *
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 170f9a7..956ba63 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -341,6 +341,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_supported_band *sband;
 	int band;
 
 	/*
@@ -380,8 +381,9 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	sta->last_rx = jiffies;
 
 	/* make sure mandatory rates are always added */
+	sband = local->hw.wiphy->bands[band];
 	sta->sta.supp_rates[band] = supp_rates |
-			ieee80211_mandatory_rates(local, band);
+			ieee80211_mandatory_rates(sband);
 
 	return ieee80211_ibss_finish_sta(sta, auth);
 }
@@ -492,7 +494,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				prev_rates = sta->sta.supp_rates[band];
 				/* make sure mandatory rates are always added */
 				sta->sta.supp_rates[band] = supp_rates |
-					ieee80211_mandatory_rates(local, band);
+					ieee80211_mandatory_rates(sband);
 
 				if (sta->sta.supp_rates[band] != prev_rates) {
 					ibss_dbg(sdata,
@@ -624,6 +626,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_supported_band *sband;
 	int band;
 
 	/*
@@ -658,8 +661,9 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	sta->last_rx = jiffies;
 
 	/* make sure mandatory rates are always added */
+	sband = local->hw.wiphy->bands[band];
 	sta->sta.supp_rates[band] = supp_rates |
-			ieee80211_mandatory_rates(local, band);
+			ieee80211_mandatory_rates(sband);
 
 	spin_lock(&ifibss->incomplete_lock);
 	list_add(&sta->list, &ifibss->incomplete_stations);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 158e6eb..b7cbd4e 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1505,9 +1505,6 @@ static inline void ieee802_11_parse_elems(u8 *start, size_t len, bool action,
 	ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
 }
 
-u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
-			      enum ieee80211_band band);
-
 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
 void ieee80211_dynamic_ps_timer(unsigned long data);
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index c13db9a..c14bb81 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -741,6 +741,8 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 		      BSS_CHANGED_BASIC_RATES |
 		      BSS_CHANGED_BEACON_INT;
 	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
+	struct ieee80211_supported_band *sband =
+					sdata->local->hw.wiphy->bands[band];
 
 	local->fif_other_bss++;
 	/* mesh ifaces must set allmulti to forward mcast traffic */
@@ -758,8 +760,7 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.bss_conf.ht_operation_mode =
 				ifmsh->mshcfg.ht_opmode;
 	sdata->vif.bss_conf.enable_beacon = true;
-	sdata->vif.bss_conf.basic_rates =
-		ieee80211_mandatory_rates(local, band);
+	sdata->vif.bss_conf.basic_rates = ieee80211_mandatory_rates(sband);
 
 	changed |= ieee80211_mps_local_status_update(sdata);
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 3f87fa4..707953f 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1072,32 +1072,6 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 	ieee80211_set_wmm_default(sdata, true);
 }
 
-u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
-			      enum ieee80211_band band)
-{
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_rate *bitrates;
-	u32 mandatory_rates;
-	enum ieee80211_rate_flags mandatory_flag;
-	int i;
-
-	sband = local->hw.wiphy->bands[band];
-	if (WARN_ON(!sband))
-		return 1;
-
-	if (band == IEEE80211_BAND_2GHZ)
-		mandatory_flag = IEEE80211_RATE_MANDATORY_B;
-	else
-		mandatory_flag = IEEE80211_RATE_MANDATORY_A;
-
-	bitrates = sband->bitrates;
-	mandatory_rates = 0;
-	for (i = 0; i < sband->n_bitrates; i++)
-		if (bitrates[i].flags & mandatory_flag)
-			mandatory_rates |= BIT(i);
-	return mandatory_rates;
-}
-
 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 			 u16 transaction, u16 auth_alg, u16 status,
 			 const u8 *extra, size_t extra_len, const u8 *da,
diff --git a/net/wireless/util.c b/net/wireless/util.c
index b11052b..0962f10 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -33,6 +33,29 @@ ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
 }
 EXPORT_SYMBOL(ieee80211_get_response_rate);
 
+u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband)
+{
+	struct ieee80211_rate *bitrates;
+	u32 mandatory_rates = 0;
+	enum ieee80211_rate_flags mandatory_flag;
+	int i;
+
+	if (WARN_ON(!sband))
+		return 1;
+
+	if (sband->band == IEEE80211_BAND_2GHZ)
+		mandatory_flag = IEEE80211_RATE_MANDATORY_B;
+	else
+		mandatory_flag = IEEE80211_RATE_MANDATORY_A;
+
+	bitrates = sband->bitrates;
+	for (i = 0; i < sband->n_bitrates; i++)
+		if (bitrates[i].flags & mandatory_flag)
+			mandatory_rates |= BIT(i);
+	return mandatory_rates;
+}
+EXPORT_SYMBOL(ieee80211_mandatory_rates);
+
 int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band)
 {
 	/* see 802.11 17.3.8.3.2 and Annex J
-- 
cgit v0.10.2


From 9f419f3851041e0c8170629f0639813dbfc79d5e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 8 May 2013 21:34:22 +0200
Subject: cfg80211: move cfg80211_get_dev_from_ifindex under wext

The function is only used and needed by the wext code
for scanning, so move it there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 58e69d6..cc49cf1 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -90,27 +90,6 @@ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
 	return &rdev->wiphy;
 }
 
-struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(struct net *net, int ifindex)
-{
-	struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV);
-	struct net_device *dev;
-
-	mutex_lock(&cfg80211_mutex);
-	dev = dev_get_by_index(net, ifindex);
-	if (!dev)
-		goto out;
-	if (dev->ieee80211_ptr) {
-		rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
-		mutex_lock(&rdev->mtx);
-	} else
-		rdev = ERR_PTR(-ENODEV);
-	dev_put(dev);
- out:
-	mutex_unlock(&cfg80211_mutex);
-	return rdev;
-}
-
 /* requires cfg80211_mutex to be held */
 int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 			char *newname)
diff --git a/net/wireless/core.h b/net/wireless/core.h
index fd35dae..95b2907 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -164,10 +164,6 @@ int get_wiphy_idx(struct wiphy *wiphy);
 /* requires cfg80211_rdev_mutex to be held! */
 struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
 
-/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
-extern struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(struct net *net, int ifindex);
-
 int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
 			  struct net *net);
 
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index fd99ea4..2ce44a7 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1040,6 +1040,27 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
 EXPORT_SYMBOL(cfg80211_unlink_bss);
 
 #ifdef CONFIG_CFG80211_WEXT
+static struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(struct net *net, int ifindex)
+{
+	struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV);
+	struct net_device *dev;
+
+	mutex_lock(&cfg80211_mutex);
+	dev = dev_get_by_index(net, ifindex);
+	if (!dev)
+		goto out;
+	if (dev->ieee80211_ptr) {
+		rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+		mutex_lock(&rdev->mtx);
+	} else
+		rdev = ERR_PTR(-ENODEV);
+	dev_put(dev);
+ out:
+	mutex_unlock(&cfg80211_mutex);
+	return rdev;
+}
+
 int cfg80211_wext_siwscan(struct net_device *dev,
 			  struct iw_request_info *info,
 			  union iwreq_data *wrqu, char *extra)
-- 
cgit v0.10.2


From 73810b77def898b43a97638478692922b7f820eb Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 8 May 2013 21:49:02 +0200
Subject: cfg80211: use atomic_t for wiphy counter

There's no need to lock, we can just use an atomic_t.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/core.c b/net/wireless/core.c
index cc49cf1..9416b8f 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -289,7 +289,7 @@ static void cfg80211_event_work(struct work_struct *work)
 
 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
 {
-	static int wiphy_counter;
+	static atomic_t wiphy_counter = ATOMIC_INIT(0);
 
 	struct cfg80211_registered_device *rdev;
 	int alloc_size;
@@ -311,20 +311,15 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
 
 	rdev->ops = ops;
 
-	mutex_lock(&cfg80211_mutex);
-
-	rdev->wiphy_idx = wiphy_counter++;
+	rdev->wiphy_idx = atomic_inc_return(&wiphy_counter);
 
 	if (unlikely(rdev->wiphy_idx < 0)) {
-		wiphy_counter--;
-		mutex_unlock(&cfg80211_mutex);
 		/* ugh, wrapped! */
+		atomic_dec(&wiphy_counter);
 		kfree(rdev);
 		return NULL;
 	}
 
-	mutex_unlock(&cfg80211_mutex);
-
 	/* give it a proper name */
 	dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx);
 
-- 
cgit v0.10.2


From 5fe231e873729fa2f57cdc417d5c1f80871e2d7d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 8 May 2013 21:45:15 +0200
Subject: cfg80211: vastly simplify locking

Virtually all code paths in cfg80211 already (need to) hold
the RTNL. As such, there's little point in having another
four mutexes for various parts of the code, they just cause
lock ordering issues (and much of the time, the RTNL and a
few of the others need thus be held.)

Simplify all this by getting rid of the extra four mutexes
and just use the RTNL throughout. Only a few code changes
were needed to do this and we can get rid of a work struct
for bonus points.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 58f6302..5430f70 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1257,6 +1257,7 @@ struct cfg80211_ssid {
  * @scan_start: time (in jiffies) when the scan started
  * @wdev: the wireless device to scan for
  * @aborted: (internal) scan request was notified as aborted
+ * @notified: (internal) scan request was notified as done or aborted
  * @no_cck: used to send probe requests at non CCK rate in 2GHz band
  */
 struct cfg80211_scan_request {
@@ -1274,7 +1275,7 @@ struct cfg80211_scan_request {
 	/* internal */
 	struct wiphy *wiphy;
 	unsigned long scan_start;
-	bool aborted;
+	bool aborted, notified;
 	bool no_cck;
 
 	/* keep last */
@@ -2874,8 +2875,6 @@ struct wireless_dev {
 
 	struct mutex mtx;
 
-	struct work_struct cleanup_work;
-
 	bool use_4addr, p2p_started;
 
 	u8 address[ETH_ALEN] __aligned(sizeof(u16));
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 9416b8f..5fc642d 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -36,12 +36,10 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("wireless configuration support");
 MODULE_ALIAS_GENL_FAMILY(NL80211_GENL_NAME);
 
-/* RCU-protected (and cfg80211_mutex for writers) */
+/* RCU-protected (and RTNL for writers) */
 LIST_HEAD(cfg80211_rdev_list);
 int cfg80211_rdev_list_generation;
 
-DEFINE_MUTEX(cfg80211_mutex);
-
 /* for debugfs */
 static struct dentry *ieee80211_debugfs_dir;
 
@@ -53,12 +51,11 @@ module_param(cfg80211_disable_40mhz_24ghz, bool, 0644);
 MODULE_PARM_DESC(cfg80211_disable_40mhz_24ghz,
 		 "Disable 40MHz support in the 2.4GHz band");
 
-/* requires cfg80211_mutex to be held! */
 struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx)
 {
 	struct cfg80211_registered_device *result = NULL, *rdev;
 
-	assert_cfg80211_lock();
+	ASSERT_RTNL();
 
 	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
 		if (rdev->wiphy_idx == wiphy_idx) {
@@ -77,12 +74,11 @@ int get_wiphy_idx(struct wiphy *wiphy)
 	return rdev->wiphy_idx;
 }
 
-/* requires cfg80211_rdev_mutex to be held! */
 struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
 {
 	struct cfg80211_registered_device *rdev;
 
-	assert_cfg80211_lock();
+	ASSERT_RTNL();
 
 	rdev = cfg80211_rdev_by_wiphy_idx(wiphy_idx);
 	if (!rdev)
@@ -90,14 +86,13 @@ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
 	return &rdev->wiphy;
 }
 
-/* requires cfg80211_mutex to be held */
 int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 			char *newname)
 {
 	struct cfg80211_registered_device *rdev2;
 	int wiphy_idx, taken = -1, result, digits;
 
-	assert_cfg80211_lock();
+	ASSERT_RTNL();
 
 	/* prohibit calling the thing phy%d when %d is not its number */
 	sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken);
@@ -195,8 +190,7 @@ static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
 void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
 			      struct wireless_dev *wdev)
 {
-	lockdep_assert_held(&rdev->devlist_mtx);
-	lockdep_assert_held(&rdev->sched_scan_mtx);
+	ASSERT_RTNL();
 
 	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_P2P_DEVICE))
 		return;
@@ -235,8 +229,6 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
 
 	rtnl_lock();
 
-	/* read-only iteration need not hold the devlist_mtx */
-
 	list_for_each_entry(wdev, &rdev->wdev_list, list) {
 		if (wdev->netdev) {
 			dev_close(wdev->netdev);
@@ -245,12 +237,7 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
 		/* otherwise, check iftype */
 		switch (wdev->iftype) {
 		case NL80211_IFTYPE_P2P_DEVICE:
-			/* but this requires it */
-			mutex_lock(&rdev->devlist_mtx);
-			mutex_lock(&rdev->sched_scan_mtx);
 			cfg80211_stop_p2p_device(rdev, wdev);
-			mutex_unlock(&rdev->sched_scan_mtx);
-			mutex_unlock(&rdev->devlist_mtx);
 			break;
 		default:
 			break;
@@ -278,10 +265,7 @@ static void cfg80211_event_work(struct work_struct *work)
 			    event_work);
 
 	rtnl_lock();
-	cfg80211_lock_rdev(rdev);
-
 	cfg80211_process_rdev_events(rdev);
-	cfg80211_unlock_rdev(rdev);
 	rtnl_unlock();
 }
 
@@ -323,9 +307,6 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
 	/* give it a proper name */
 	dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx);
 
-	mutex_init(&rdev->mtx);
-	mutex_init(&rdev->devlist_mtx);
-	mutex_init(&rdev->sched_scan_mtx);
 	INIT_LIST_HEAD(&rdev->wdev_list);
 	INIT_LIST_HEAD(&rdev->beacon_registrations);
 	spin_lock_init(&rdev->beacon_registrations_lock);
@@ -573,11 +554,11 @@ int wiphy_register(struct wiphy *wiphy)
 	/* check and set up bitrates */
 	ieee80211_set_bitrate_flags(wiphy);
 
-	mutex_lock(&cfg80211_mutex);
+	rtnl_lock();
 
 	res = device_add(&rdev->wiphy.dev);
 	if (res) {
-		mutex_unlock(&cfg80211_mutex);
+		rtnl_unlock();
 		return res;
 	}
 
@@ -606,25 +587,18 @@ int wiphy_register(struct wiphy *wiphy)
 	}
 
 	cfg80211_debugfs_rdev_add(rdev);
-	mutex_unlock(&cfg80211_mutex);
 
-	/*
-	 * due to a locking dependency this has to be outside of the
-	 * cfg80211_mutex lock
-	 */
 	res = rfkill_register(rdev->rfkill);
 	if (res) {
 		device_del(&rdev->wiphy.dev);
 
-		mutex_lock(&cfg80211_mutex);
 		debugfs_remove_recursive(rdev->wiphy.debugfsdir);
 		list_del_rcu(&rdev->list);
 		wiphy_regulatory_deregister(wiphy);
-		mutex_unlock(&cfg80211_mutex);
+		rtnl_unlock();
 		return res;
 	}
 
-	rtnl_lock();
 	rdev->wiphy.registered = true;
 	rtnl_unlock();
 	return 0;
@@ -654,25 +628,19 @@ void wiphy_unregister(struct wiphy *wiphy)
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
-	rtnl_lock();
-	rdev->wiphy.registered = false;
-	rtnl_unlock();
-
-	rfkill_unregister(rdev->rfkill);
-
-	/* protect the device list */
-	mutex_lock(&cfg80211_mutex);
-
 	wait_event(rdev->dev_wait, ({
 		int __count;
-		mutex_lock(&rdev->devlist_mtx);
+		rtnl_lock();
 		__count = rdev->opencount;
-		mutex_unlock(&rdev->devlist_mtx);
+		rtnl_unlock();
 		__count == 0; }));
 
-	mutex_lock(&rdev->devlist_mtx);
+	rtnl_lock();
+	rdev->wiphy.registered = false;
+
+	rfkill_unregister(rdev->rfkill);
+
 	BUG_ON(!list_empty(&rdev->wdev_list));
-	mutex_unlock(&rdev->devlist_mtx);
 
 	/*
 	 * First remove the hardware from everywhere, this makes
@@ -683,20 +651,6 @@ void wiphy_unregister(struct wiphy *wiphy)
 	synchronize_rcu();
 
 	/*
-	 * Try to grab rdev->mtx. If a command is still in progress,
-	 * hopefully the driver will refuse it since it's tearing
-	 * down the device already. We wait for this command to complete
-	 * before unlinking the item from the list.
-	 * Note: as codified by the BUG_ON above we cannot get here if
-	 * a virtual interface is still present. Hence, we can only get
-	 * to lock contention here if userspace issues a command that
-	 * identified the hardware by wiphy index.
-	 */
-	cfg80211_lock_rdev(rdev);
-	/* nothing */
-	cfg80211_unlock_rdev(rdev);
-
-	/*
 	 * If this device got a regulatory hint tell core its
 	 * free to listen now to a new shiny device regulatory hint
 	 */
@@ -705,7 +659,7 @@ void wiphy_unregister(struct wiphy *wiphy)
 	cfg80211_rdev_list_generation++;
 	device_del(&rdev->wiphy.dev);
 
-	mutex_unlock(&cfg80211_mutex);
+	rtnl_unlock();
 
 	flush_work(&rdev->scan_done_wk);
 	cancel_work_sync(&rdev->conn_work);
@@ -723,9 +677,6 @@ void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
 	struct cfg80211_internal_bss *scan, *tmp;
 	struct cfg80211_beacon_registration *reg, *treg;
 	rfkill_destroy(rdev->rfkill);
-	mutex_destroy(&rdev->mtx);
-	mutex_destroy(&rdev->devlist_mtx);
-	mutex_destroy(&rdev->sched_scan_mtx);
 	list_for_each_entry_safe(reg, treg, &rdev->beacon_registrations, list) {
 		list_del(&reg->list);
 		kfree(reg);
@@ -750,36 +701,6 @@ void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked)
 }
 EXPORT_SYMBOL(wiphy_rfkill_set_hw_state);
 
-static void wdev_cleanup_work(struct work_struct *work)
-{
-	struct wireless_dev *wdev;
-	struct cfg80211_registered_device *rdev;
-
-	wdev = container_of(work, struct wireless_dev, cleanup_work);
-	rdev = wiphy_to_dev(wdev->wiphy);
-
-	mutex_lock(&rdev->sched_scan_mtx);
-
-	if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
-		rdev->scan_req->aborted = true;
-		___cfg80211_scan_done(rdev, true);
-	}
-
-	if (WARN_ON(rdev->sched_scan_req &&
-		    rdev->sched_scan_req->dev == wdev->netdev)) {
-		__cfg80211_stop_sched_scan(rdev, false);
-	}
-
-	mutex_unlock(&rdev->sched_scan_mtx);
-
-	mutex_lock(&rdev->devlist_mtx);
-	rdev->opencount--;
-	mutex_unlock(&rdev->devlist_mtx);
-	wake_up(&rdev->dev_wait);
-
-	dev_put(wdev->netdev);
-}
-
 void cfg80211_unregister_wdev(struct wireless_dev *wdev)
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -789,8 +710,6 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev)
 	if (WARN_ON(wdev->netdev))
 		return;
 
-	mutex_lock(&rdev->devlist_mtx);
-	mutex_lock(&rdev->sched_scan_mtx);
 	list_del_rcu(&wdev->list);
 	rdev->devlist_generation++;
 
@@ -802,8 +721,6 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev)
 		WARN_ON_ONCE(1);
 		break;
 	}
-	mutex_unlock(&rdev->sched_scan_mtx);
-	mutex_unlock(&rdev->devlist_mtx);
 }
 EXPORT_SYMBOL(cfg80211_unregister_wdev);
 
@@ -822,7 +739,7 @@ void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
 }
 
 void cfg80211_leave(struct cfg80211_registered_device *rdev,
-		   struct wireless_dev *wdev)
+		    struct wireless_dev *wdev)
 {
 	struct net_device *dev = wdev->netdev;
 
@@ -832,9 +749,7 @@ void cfg80211_leave(struct cfg80211_registered_device *rdev,
 		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_STATION:
-		mutex_lock(&rdev->sched_scan_mtx);
 		__cfg80211_stop_sched_scan(rdev, false);
-		mutex_unlock(&rdev->sched_scan_mtx);
 
 		wdev_lock(wdev);
 #ifdef CONFIG_CFG80211_WEXT
@@ -887,13 +802,11 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 		 * are added with nl80211.
 		 */
 		mutex_init(&wdev->mtx);
-		INIT_WORK(&wdev->cleanup_work, wdev_cleanup_work);
 		INIT_LIST_HEAD(&wdev->event_list);
 		spin_lock_init(&wdev->event_lock);
 		INIT_LIST_HEAD(&wdev->mgmt_registrations);
 		spin_lock_init(&wdev->mgmt_registrations_lock);
 
-		mutex_lock(&rdev->devlist_mtx);
 		wdev->identifier = ++rdev->wdev_id;
 		list_add_rcu(&wdev->list, &rdev->wdev_list);
 		rdev->devlist_generation++;
@@ -906,7 +819,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 		}
 		wdev->netdev = dev;
 		wdev->sme_state = CFG80211_SME_IDLE;
-		mutex_unlock(&rdev->devlist_mtx);
 #ifdef CONFIG_CFG80211_WEXT
 		wdev->wext.default_key = -1;
 		wdev->wext.default_mgmt_key = -1;
@@ -932,26 +844,22 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 		break;
 	case NETDEV_DOWN:
 		cfg80211_update_iface_num(rdev, wdev->iftype, -1);
-		dev_hold(dev);
-		queue_work(cfg80211_wq, &wdev->cleanup_work);
+		if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
+			if (WARN_ON(!rdev->scan_req->notified))
+				rdev->scan_req->aborted = true;
+			___cfg80211_scan_done(rdev, true);
+		}
+
+		if (WARN_ON(rdev->sched_scan_req &&
+			    rdev->sched_scan_req->dev == wdev->netdev)) {
+			__cfg80211_stop_sched_scan(rdev, false);
+		}
+
+		rdev->opencount--;
+		wake_up(&rdev->dev_wait);
 		break;
 	case NETDEV_UP:
-		/*
-		 * If we have a really quick DOWN/UP succession we may
-		 * have this work still pending ... cancel it and see
-		 * if it was pending, in which case we need to account
-		 * for some of the work it would have done.
-		 */
-		if (cancel_work_sync(&wdev->cleanup_work)) {
-			mutex_lock(&rdev->devlist_mtx);
-			rdev->opencount--;
-			mutex_unlock(&rdev->devlist_mtx);
-			dev_put(dev);
-		}
 		cfg80211_update_iface_num(rdev, wdev->iftype, 1);
-		cfg80211_lock_rdev(rdev);
-		mutex_lock(&rdev->devlist_mtx);
-		mutex_lock(&rdev->sched_scan_mtx);
 		wdev_lock(wdev);
 		switch (wdev->iftype) {
 #ifdef CONFIG_CFG80211_WEXT
@@ -983,10 +891,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 			break;
 		}
 		wdev_unlock(wdev);
-		mutex_unlock(&rdev->sched_scan_mtx);
 		rdev->opencount++;
-		mutex_unlock(&rdev->devlist_mtx);
-		cfg80211_unlock_rdev(rdev);
 
 		/*
 		 * Configure power management to the driver here so that its
@@ -1003,12 +908,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 		break;
 	case NETDEV_UNREGISTER:
 		/*
-		 * NB: cannot take rdev->mtx here because this may be
-		 * called within code protected by it when interfaces
-		 * are removed with nl80211.
-		 */
-		mutex_lock(&rdev->devlist_mtx);
-		/*
 		 * It is possible to get NETDEV_UNREGISTER
 		 * multiple times. To detect that, check
 		 * that the interface is still on the list
@@ -1024,7 +923,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 			kfree(wdev->wext.keys);
 #endif
 		}
-		mutex_unlock(&rdev->devlist_mtx);
 		/*
 		 * synchronise (so that we won't find this netdev
 		 * from other code any more) and then clear the list
@@ -1044,9 +942,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 			return notifier_from_errno(-EOPNOTSUPP);
 		if (rfkill_blocked(rdev->rfkill))
 			return notifier_from_errno(-ERFKILL);
-		mutex_lock(&rdev->devlist_mtx);
 		ret = cfg80211_can_add_interface(rdev, wdev->iftype);
-		mutex_unlock(&rdev->devlist_mtx);
 		if (ret)
 			return notifier_from_errno(ret);
 		break;
@@ -1064,12 +960,10 @@ static void __net_exit cfg80211_pernet_exit(struct net *net)
 	struct cfg80211_registered_device *rdev;
 
 	rtnl_lock();
-	mutex_lock(&cfg80211_mutex);
 	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
 		if (net_eq(wiphy_net(&rdev->wiphy), net))
 			WARN_ON(cfg80211_switch_netns(rdev, &init_net));
 	}
-	mutex_unlock(&cfg80211_mutex);
 	rtnl_unlock();
 }
 
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 95b2907..d21a0fc 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -5,7 +5,6 @@
  */
 #ifndef __NET_WIRELESS_CORE_H
 #define __NET_WIRELESS_CORE_H
-#include <linux/mutex.h>
 #include <linux/list.h>
 #include <linux/netdevice.h>
 #include <linux/rbtree.h>
@@ -23,11 +22,6 @@
 struct cfg80211_registered_device {
 	const struct cfg80211_ops *ops;
 	struct list_head list;
-	/* we hold this mutex during any call so that
-	 * we cannot do multiple calls at once, and also
-	 * to avoid the deregister call to proceed while
-	 * any call is in progress */
-	struct mutex mtx;
 
 	/* rfkill support */
 	struct rfkill_ops rfkill_ops;
@@ -49,9 +43,7 @@ struct cfg80211_registered_device {
 	/* wiphy index, internal only */
 	int wiphy_idx;
 
-	/* associated wireless interfaces */
-	struct mutex devlist_mtx;
-	/* protected by devlist_mtx or RCU */
+	/* associated wireless interfaces, protected by rtnl or RCU */
 	struct list_head wdev_list;
 	int devlist_generation, wdev_id;
 	int opencount; /* also protected by devlist_mtx */
@@ -75,8 +67,6 @@ struct cfg80211_registered_device {
 	struct work_struct scan_done_wk;
 	struct work_struct sched_scan_results_wk;
 
-	struct mutex sched_scan_mtx;
-
 #ifdef CONFIG_NL80211_TESTMODE
 	struct genl_info *testmode_info;
 #endif
@@ -120,15 +110,9 @@ cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
 }
 
 extern struct workqueue_struct *cfg80211_wq;
-extern struct mutex cfg80211_mutex;
 extern struct list_head cfg80211_rdev_list;
 extern int cfg80211_rdev_list_generation;
 
-static inline void assert_cfg80211_lock(void)
-{
-	lockdep_assert_held(&cfg80211_mutex);
-}
-
 struct cfg80211_internal_bss {
 	struct list_head list;
 	struct list_head hidden_list;
@@ -161,23 +145,11 @@ static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
 struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
 int get_wiphy_idx(struct wiphy *wiphy);
 
-/* requires cfg80211_rdev_mutex to be held! */
 struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
 
 int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
 			  struct net *net);
 
-static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev)
-{
-	mutex_lock(&rdev->mtx);
-}
-
-static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev)
-{
-	BUG_ON(IS_ERR(rdev) || !rdev);
-	mutex_unlock(&rdev->mtx);
-}
-
 static inline void wdev_lock(struct wireless_dev *wdev)
 	__acquires(wdev)
 {
@@ -192,7 +164,7 @@ static inline void wdev_unlock(struct wireless_dev *wdev)
 	mutex_unlock(&wdev->mtx);
 }
 
-#define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx)
+#define ASSERT_RDEV_LOCK(rdev) ASSERT_RTNL()
 #define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
 
 static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 920cabe..90d0500 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -74,7 +74,7 @@ static ssize_t ht40allow_map_read(struct file *file,
 	if (!buf)
 		return -ENOMEM;
 
-	mutex_lock(&cfg80211_mutex);
+	rtnl_lock();
 
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		sband = wiphy->bands[band];
@@ -85,7 +85,7 @@ static ssize_t ht40allow_map_read(struct file *file,
 						buf, buf_size, offset);
 	}
 
-	mutex_unlock(&cfg80211_mutex);
+	rtnl_unlock();
 
 	r = simple_read_from_buffer(user_buf, count, ppos, buf, offset);
 
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index d80e471..5449c5a 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -152,11 +152,11 @@ int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int err;
 
-	mutex_lock(&rdev->devlist_mtx);
+	ASSERT_RTNL();
+
 	wdev_lock(wdev);
 	err = __cfg80211_join_ibss(rdev, dev, params, connkeys);
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
@@ -359,11 +359,9 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
 		wdev->wext.ibss.channel_fixed = false;
 	}
 
-	mutex_lock(&rdev->devlist_mtx);
 	wdev_lock(wdev);
 	err = cfg80211_ibss_wext_join(rdev, wdev);
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
@@ -429,11 +427,9 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
 	memcpy(wdev->wext.ibss.ssid, ssid, len);
 	wdev->wext.ibss.ssid_len = len;
 
-	mutex_lock(&rdev->devlist_mtx);
 	wdev_lock(wdev);
 	err = cfg80211_ibss_wext_join(rdev, wdev);
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
@@ -512,11 +508,9 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
 	} else
 		wdev->wext.ibss.bssid = NULL;
 
-	mutex_lock(&rdev->devlist_mtx);
 	wdev_lock(wdev);
 	err = cfg80211_ibss_wext_join(rdev, wdev);
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 9546ad2..5dfb289 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -186,11 +186,9 @@ int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int err;
 
-	mutex_lock(&rdev->devlist_mtx);
 	wdev_lock(wdev);
 	err = __cfg80211_join_mesh(rdev, dev, setup, conf);
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index c21e32f..68b40f2 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -313,14 +313,14 @@ int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
 {
 	int err;
 
-	mutex_lock(&rdev->devlist_mtx);
+	ASSERT_RTNL();
+
 	wdev_lock(dev->ieee80211_ptr);
 	err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
 				   ssid, ssid_len, ie, ie_len,
 				   key, key_len, key_idx,
 				   sae_data, sae_data_len);
 	wdev_unlock(dev->ieee80211_ptr);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
@@ -424,12 +424,12 @@ int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int err;
 
-	mutex_lock(&rdev->devlist_mtx);
+	ASSERT_RTNL();
+
 	wdev_lock(wdev);
 	err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid,
 				    ssid, ssid_len, req);
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
@@ -844,7 +844,7 @@ void cfg80211_dfs_channels_update_work(struct work_struct *work)
 			    dfs_update_channels_wk);
 	wiphy = &rdev->wiphy;
 
-	mutex_lock(&cfg80211_mutex);
+	rtnl_lock();
 	for (bandid = 0; bandid < IEEE80211_NUM_BANDS; bandid++) {
 		sband = wiphy->bands[bandid];
 		if (!sband)
@@ -877,7 +877,7 @@ void cfg80211_dfs_channels_update_work(struct work_struct *work)
 			check_again = true;
 		}
 	}
-	mutex_unlock(&cfg80211_mutex);
+	rtnl_unlock();
 
 	/* reschedule if there are other channels waiting to be cleared again */
 	if (check_again)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5bcf3a5..74cdb1a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -59,7 +59,7 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
 	int wiphy_idx = -1;
 	int ifidx = -1;
 
-	assert_cfg80211_lock();
+	ASSERT_RTNL();
 
 	if (!have_ifidx && !have_wdev_id)
 		return ERR_PTR(-EINVAL);
@@ -80,7 +80,6 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
 		if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
 			continue;
 
-		mutex_lock(&rdev->devlist_mtx);
 		list_for_each_entry(wdev, &rdev->wdev_list, list) {
 			if (have_ifidx && wdev->netdev &&
 			    wdev->netdev->ifindex == ifidx) {
@@ -92,7 +91,6 @@ __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
 				break;
 			}
 		}
-		mutex_unlock(&rdev->devlist_mtx);
 
 		if (result)
 			break;
@@ -109,7 +107,7 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
 	struct cfg80211_registered_device *rdev = NULL, *tmp;
 	struct net_device *netdev;
 
-	assert_cfg80211_lock();
+	ASSERT_RTNL();
 
 	if (!attrs[NL80211_ATTR_WIPHY] &&
 	    !attrs[NL80211_ATTR_IFINDEX] &&
@@ -128,14 +126,12 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
 		tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
 		if (tmp) {
 			/* make sure wdev exists */
-			mutex_lock(&tmp->devlist_mtx);
 			list_for_each_entry(wdev, &tmp->wdev_list, list) {
 				if (wdev->identifier != (u32)wdev_id)
 					continue;
 				found = true;
 				break;
 			}
-			mutex_unlock(&tmp->devlist_mtx);
 
 			if (!found)
 				tmp = NULL;
@@ -182,19 +178,6 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
 /*
  * This function returns a pointer to the driver
  * that the genl_info item that is passed refers to.
- * If successful, it returns non-NULL and also locks
- * the driver's mutex!
- *
- * This means that you need to call cfg80211_unlock_rdev()
- * before being allowed to acquire &cfg80211_mutex!
- *
- * This is necessary because we need to lock the global
- * mutex to get an item off the list safely, and then
- * we lock the rdev mutex so it doesn't go away under us.
- *
- * We don't want to keep cfg80211_mutex locked
- * for all the time in order to allow requests on
- * other interfaces to go through at the same time.
  *
  * The result of this can be a PTR_ERR and hence must
  * be checked with IS_ERR() for errors.
@@ -202,20 +185,7 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
 static struct cfg80211_registered_device *
 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
 {
-	struct cfg80211_registered_device *rdev;
-
-	mutex_lock(&cfg80211_mutex);
-	rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
-
-	/* if it is not an error we grab the lock on
-	 * it to assure it won't be going away while
-	 * we operate on it */
-	if (!IS_ERR(rdev))
-		mutex_lock(&rdev->mtx);
-
-	mutex_unlock(&cfg80211_mutex);
-
-	return rdev;
+	return __cfg80211_rdev_from_attrs(netns, info->attrs);
 }
 
 /* policy for the attributes */
@@ -456,7 +426,6 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
 	int err;
 
 	rtnl_lock();
-	mutex_lock(&cfg80211_mutex);
 
 	if (!cb->args[0]) {
 		err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
@@ -485,14 +454,12 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
 		*rdev = wiphy_to_dev(wiphy);
 		*wdev = NULL;
 
-		mutex_lock(&(*rdev)->devlist_mtx);
 		list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
 			if (tmp->identifier == cb->args[1]) {
 				*wdev = tmp;
 				break;
 			}
 		}
-		mutex_unlock(&(*rdev)->devlist_mtx);
 
 		if (!*wdev) {
 			err = -ENODEV;
@@ -500,19 +467,14 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
 		}
 	}
 
-	cfg80211_lock_rdev(*rdev);
-
-	mutex_unlock(&cfg80211_mutex);
 	return 0;
  out_unlock:
-	mutex_unlock(&cfg80211_mutex);
 	rtnl_unlock();
 	return err;
 }
 
 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
 {
-	cfg80211_unlock_rdev(rdev);
 	rtnl_unlock();
 }
 
@@ -1568,7 +1530,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 	struct nlattr **tb = nl80211_fam.attrbuf;
 	int res;
 
-	mutex_lock(&cfg80211_mutex);
+	rtnl_lock();
 	res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
 			  tb, nl80211_fam.maxattr, nl80211_policy);
 	if (res == 0) {
@@ -1582,10 +1544,8 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 			int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
 
 			netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
-			if (!netdev) {
-				mutex_unlock(&cfg80211_mutex);
+			if (!netdev)
 				return -ENODEV;
-			}
 			if (netdev->ieee80211_ptr) {
 				dev = wiphy_to_dev(
 					netdev->ieee80211_ptr->wiphy);
@@ -1629,7 +1589,6 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 				    !skb->len &&
 				    cb->min_dump_alloc < 4096) {
 					cb->min_dump_alloc = 4096;
-					mutex_unlock(&cfg80211_mutex);
 					return 1;
 				}
 				idx--;
@@ -1638,7 +1597,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 		} while (cb->args[1] > 0);
 		break;
 	}
-	mutex_unlock(&cfg80211_mutex);
+	rtnl_unlock();
 
 	cb->args[0] = idx;
 
@@ -1793,7 +1752,6 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
 	if (result)
 		return result;
 
-	mutex_lock(&rdev->devlist_mtx);
 	switch (iftype) {
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_P2P_GO:
@@ -1817,7 +1775,6 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
 	default:
 		result = -EINVAL;
 	}
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return result;
 }
@@ -1866,6 +1823,8 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 	u32 frag_threshold = 0, rts_threshold = 0;
 	u8 coverage_class = 0;
 
+	ASSERT_RTNL();
+
 	/*
 	 * Try to find the wiphy and netdev. Normally this
 	 * function shouldn't need the netdev, but this is
@@ -1875,31 +1834,25 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 	 * also passed a netdev to set_wiphy, so that it is
 	 * possible to let that go to the right netdev!
 	 */
-	mutex_lock(&cfg80211_mutex);
 
 	if (info->attrs[NL80211_ATTR_IFINDEX]) {
 		int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
 
 		netdev = dev_get_by_index(genl_info_net(info), ifindex);
-		if (netdev && netdev->ieee80211_ptr) {
+		if (netdev && netdev->ieee80211_ptr)
 			rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
-			mutex_lock(&rdev->mtx);
-		} else
+		else
 			netdev = NULL;
 	}
 
 	if (!netdev) {
 		rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
 						  info->attrs);
-		if (IS_ERR(rdev)) {
-			mutex_unlock(&cfg80211_mutex);
+		if (IS_ERR(rdev))
 			return PTR_ERR(rdev);
-		}
 		wdev = NULL;
 		netdev = NULL;
 		result = 0;
-
-		mutex_lock(&rdev->mtx);
 	} else
 		wdev = netdev->ieee80211_ptr;
 
@@ -1912,8 +1865,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		result = cfg80211_dev_rename(
 			rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
 
-	mutex_unlock(&cfg80211_mutex);
-
 	if (result)
 		goto bad_res;
 
@@ -2120,7 +2071,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 	}
 
  bad_res:
-	mutex_unlock(&rdev->mtx);
 	if (netdev)
 		dev_put(netdev);
 	return result;
@@ -2218,7 +2168,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
 	struct cfg80211_registered_device *rdev;
 	struct wireless_dev *wdev;
 
-	mutex_lock(&cfg80211_mutex);
+	rtnl_lock();
 	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
 		if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
 			continue;
@@ -2228,7 +2178,6 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
 		}
 		if_idx = 0;
 
-		mutex_lock(&rdev->devlist_mtx);
 		list_for_each_entry(wdev, &rdev->wdev_list, list) {
 			if (if_idx < if_start) {
 				if_idx++;
@@ -2237,17 +2186,15 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
 			if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
 					       cb->nlh->nlmsg_seq, NLM_F_MULTI,
 					       rdev, wdev) < 0) {
-				mutex_unlock(&rdev->devlist_mtx);
 				goto out;
 			}
 			if_idx++;
 		}
-		mutex_unlock(&rdev->devlist_mtx);
 
 		wp_idx++;
 	}
  out:
-	mutex_unlock(&cfg80211_mutex);
+	rtnl_unlock();
 
 	cb->args[0] = wp_idx;
 	cb->args[1] = if_idx;
@@ -2480,11 +2427,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 		INIT_LIST_HEAD(&wdev->mgmt_registrations);
 		spin_lock_init(&wdev->mgmt_registrations_lock);
 
-		mutex_lock(&rdev->devlist_mtx);
 		wdev->identifier = ++rdev->wdev_id;
 		list_add_rcu(&wdev->list, &rdev->wdev_list);
 		rdev->devlist_generation++;
-		mutex_unlock(&rdev->devlist_mtx);
 		break;
 	default:
 		break;
@@ -2993,8 +2938,6 @@ static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
 	struct wireless_dev *wdev;
 	bool ret = false;
 
-	mutex_lock(&rdev->devlist_mtx);
-
 	list_for_each_entry(wdev, &rdev->wdev_list, list) {
 		if (wdev->iftype != NL80211_IFTYPE_AP &&
 		    wdev->iftype != NL80211_IFTYPE_P2P_GO)
@@ -3008,8 +2951,6 @@ static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
 		break;
 	}
 
-	mutex_unlock(&rdev->devlist_mtx);
-
 	return ret;
 }
 
@@ -3171,13 +3112,10 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 		params.radar_required = true;
 	}
 
-	mutex_lock(&rdev->devlist_mtx);
 	err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
 					   params.chandef.chan,
 					   CHAN_MODE_SHARED,
 					   radar_detect_width);
-	mutex_unlock(&rdev->devlist_mtx);
-
 	if (err)
 		return err;
 
@@ -4914,18 +4852,13 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
 	void *hdr = NULL;
 	struct nlattr *nl_reg_rules;
 	unsigned int i;
-	int err = -EINVAL;
-
-	mutex_lock(&cfg80211_mutex);
 
 	if (!cfg80211_regdomain)
-		goto out;
+		return -EINVAL;
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
-	if (!msg) {
-		err = -ENOBUFS;
-		goto out;
-	}
+	if (!msg)
+		return -ENOBUFS;
 
 	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 			     NL80211_CMD_GET_REG);
@@ -4984,8 +4917,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
 	nla_nest_end(msg, nl_reg_rules);
 
 	genlmsg_end(msg, hdr);
-	err = genlmsg_reply(msg, info);
-	goto out;
+	return genlmsg_reply(msg, info);
 
 nla_put_failure_rcu:
 	rcu_read_unlock();
@@ -4993,10 +4925,7 @@ nla_put_failure:
 	genlmsg_cancel(msg, hdr);
 put_failure:
 	nlmsg_free(msg);
-	err = -EMSGSIZE;
-out:
-	mutex_unlock(&cfg80211_mutex);
-	return err;
+	return -EMSGSIZE;
 }
 
 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
@@ -5062,12 +4991,9 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
 		}
 	}
 
-	mutex_lock(&cfg80211_mutex);
-
 	r = set_regdom(rd);
 	/* set_regdom took ownership */
 	rd = NULL;
-	mutex_unlock(&cfg80211_mutex);
 
  bad_reg:
 	kfree(rd);
@@ -5117,7 +5043,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 	if (!rdev->ops->scan)
 		return -EOPNOTSUPP;
 
-	mutex_lock(&rdev->sched_scan_mtx);
 	if (rdev->scan_req) {
 		err = -EBUSY;
 		goto unlock;
@@ -5303,7 +5228,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 	}
 
  unlock:
-	mutex_unlock(&rdev->sched_scan_mtx);
 	return err;
 }
 
@@ -5375,8 +5299,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
 	if (ie_len > wiphy->max_sched_scan_ie_len)
 		return -EINVAL;
 
-	mutex_lock(&rdev->sched_scan_mtx);
-
 	if (rdev->sched_scan_req) {
 		err = -EINPROGRESS;
 		goto out;
@@ -5544,7 +5466,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb,
 out_free:
 	kfree(request);
 out:
-	mutex_unlock(&rdev->sched_scan_mtx);
 	return err;
 }
 
@@ -5552,17 +5473,12 @@ static int nl80211_stop_sched_scan(struct sk_buff *skb,
 				   struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
-	int err;
 
 	if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
 	    !rdev->ops->sched_scan_stop)
 		return -EOPNOTSUPP;
 
-	mutex_lock(&rdev->sched_scan_mtx);
-	err = __cfg80211_stop_sched_scan(rdev, false);
-	mutex_unlock(&rdev->sched_scan_mtx);
-
-	return err;
+	return __cfg80211_stop_sched_scan(rdev, false);
 }
 
 static int nl80211_start_radar_detection(struct sk_buff *skb,
@@ -5594,12 +5510,11 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
 	if (!rdev->ops->start_radar_detection)
 		return -EOPNOTSUPP;
 
-	mutex_lock(&rdev->devlist_mtx);
 	err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
 					   chandef.chan, CHAN_MODE_SHARED,
 					   BIT(chandef.width));
 	if (err)
-		goto err_locked;
+		return err;
 
 	err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
 	if (!err) {
@@ -5607,9 +5522,6 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
 		wdev->cac_started = true;
 		wdev->cac_start_time = jiffies;
 	}
-err_locked:
-	mutex_unlock(&rdev->devlist_mtx);
-
 	return err;
 }
 
@@ -6472,6 +6384,8 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
 	void *data = NULL;
 	int data_len = 0;
 
+	rtnl_lock();
+
 	if (cb->args[0]) {
 		/*
 		 * 0 is a valid index, but not valid for args[0],
@@ -6483,18 +6397,16 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
 				  nl80211_fam.attrbuf, nl80211_fam.maxattr,
 				  nl80211_policy);
 		if (err)
-			return err;
+			goto out_err;
 
-		mutex_lock(&cfg80211_mutex);
 		rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
 						  nl80211_fam.attrbuf);
 		if (IS_ERR(rdev)) {
-			mutex_unlock(&cfg80211_mutex);
-			return PTR_ERR(rdev);
+			err = PTR_ERR(rdev);
+			goto out_err;
 		}
 		phy_idx = rdev->wiphy_idx;
 		rdev = NULL;
-		mutex_unlock(&cfg80211_mutex);
 
 		if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
 			cb->args[1] =
@@ -6506,14 +6418,11 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
 		data_len = nla_len((void *)cb->args[1]);
 	}
 
-	mutex_lock(&cfg80211_mutex);
 	rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
 	if (!rdev) {
-		mutex_unlock(&cfg80211_mutex);
-		return -ENOENT;
+		err = -ENOENT;
+		goto out_err;
 	}
-	cfg80211_lock_rdev(rdev);
-	mutex_unlock(&cfg80211_mutex);
 
 	if (!rdev->ops->testmode_dump) {
 		err = -EOPNOTSUPP;
@@ -6554,7 +6463,7 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
 	/* see above */
 	cb->args[0] = phy_idx + 1;
  out_err:
-	cfg80211_unlock_rdev(rdev);
+	rtnl_unlock();
 	return err;
 }
 
@@ -8189,9 +8098,7 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
 	if (wdev->p2p_started)
 		return 0;
 
-	mutex_lock(&rdev->devlist_mtx);
 	err = cfg80211_can_add_interface(rdev, wdev->iftype);
-	mutex_unlock(&rdev->devlist_mtx);
 	if (err)
 		return err;
 
@@ -8200,9 +8107,7 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
 		return err;
 
 	wdev->p2p_started = true;
-	mutex_lock(&rdev->devlist_mtx);
 	rdev->opencount++;
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return 0;
 }
@@ -8218,11 +8123,7 @@ static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
 	if (!rdev->ops->stop_p2p_device)
 		return -EOPNOTSUPP;
 
-	mutex_lock(&rdev->devlist_mtx);
-	mutex_lock(&rdev->sched_scan_mtx);
 	cfg80211_stop_p2p_device(rdev, wdev);
-	mutex_unlock(&rdev->sched_scan_mtx);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return 0;
 }
@@ -8365,11 +8266,11 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
 		info->user_ptr[0] = rdev;
 	} else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
 		   ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
-		mutex_lock(&cfg80211_mutex);
+		ASSERT_RTNL();
+
 		wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
 						  info->attrs);
 		if (IS_ERR(wdev)) {
-			mutex_unlock(&cfg80211_mutex);
 			if (rtnl)
 				rtnl_unlock();
 			return PTR_ERR(wdev);
@@ -8380,7 +8281,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
 
 		if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
 			if (!dev) {
-				mutex_unlock(&cfg80211_mutex);
 				if (rtnl)
 					rtnl_unlock();
 				return -EINVAL;
@@ -8394,7 +8294,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
 		if (dev) {
 			if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
 			    !netif_running(dev)) {
-				mutex_unlock(&cfg80211_mutex);
 				if (rtnl)
 					rtnl_unlock();
 				return -ENETDOWN;
@@ -8403,17 +8302,12 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
 			dev_hold(dev);
 		} else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
 			if (!wdev->p2p_started) {
-				mutex_unlock(&cfg80211_mutex);
 				if (rtnl)
 					rtnl_unlock();
 				return -ENETDOWN;
 			}
 		}
 
-		cfg80211_lock_rdev(rdev);
-
-		mutex_unlock(&cfg80211_mutex);
-
 		info->user_ptr[0] = rdev;
 	}
 
@@ -8423,8 +8317,6 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
 			      struct genl_info *info)
 {
-	if (info->user_ptr[0])
-		cfg80211_unlock_rdev(info->user_ptr[0]);
 	if (info->user_ptr[1]) {
 		if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
 			struct wireless_dev *wdev = info->user_ptr[1];
@@ -8446,7 +8338,8 @@ static struct genl_ops nl80211_ops[] = {
 		.dumpit = nl80211_dump_wiphy,
 		.policy = nl80211_policy,
 		/* can be retrieved by unprivileged users */
-		.internal_flags = NL80211_FLAG_NEED_WIPHY,
+		.internal_flags = NL80211_FLAG_NEED_WIPHY |
+				  NL80211_FLAG_NEED_RTNL,
 	},
 	{
 		.cmd = NL80211_CMD_SET_WIPHY,
@@ -8461,7 +8354,8 @@ static struct genl_ops nl80211_ops[] = {
 		.dumpit = nl80211_dump_interface,
 		.policy = nl80211_policy,
 		/* can be retrieved by unprivileged users */
-		.internal_flags = NL80211_FLAG_NEED_WDEV,
+		.internal_flags = NL80211_FLAG_NEED_WDEV |
+				  NL80211_FLAG_NEED_RTNL,
 	},
 	{
 		.cmd = NL80211_CMD_SET_INTERFACE,
@@ -8620,6 +8514,7 @@ static struct genl_ops nl80211_ops[] = {
 		.cmd = NL80211_CMD_GET_REG,
 		.doit = nl80211_get_reg,
 		.policy = nl80211_policy,
+		.internal_flags = NL80211_FLAG_NEED_RTNL,
 		/* can be retrieved by unprivileged users */
 	},
 	{
@@ -8627,6 +8522,7 @@ static struct genl_ops nl80211_ops[] = {
 		.doit = nl80211_set_reg,
 		.policy = nl80211_policy,
 		.flags = GENL_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_RTNL,
 	},
 	{
 		.cmd = NL80211_CMD_REQ_SET_REG,
@@ -9082,8 +8978,6 @@ static int nl80211_add_scan_req(struct sk_buff *msg,
 	struct nlattr *nest;
 	int i;
 
-	lockdep_assert_held(&rdev->sched_scan_mtx);
-
 	if (WARN_ON(!req))
 		return 0;
 
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index cc35fba..e765596 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -377,7 +377,7 @@ static void reg_regdb_search(struct work_struct *work)
 	const struct ieee80211_regdomain *curdom, *regdom = NULL;
 	int i;
 
-	mutex_lock(&cfg80211_mutex);
+	rtnl_lock();
 
 	mutex_lock(&reg_regdb_search_mutex);
 	while (!list_empty(&reg_regdb_search_list)) {
@@ -402,7 +402,7 @@ static void reg_regdb_search(struct work_struct *work)
 	if (!IS_ERR_OR_NULL(regdom))
 		set_regdom(regdom);
 
-	mutex_unlock(&cfg80211_mutex);
+	rtnl_unlock();
 }
 
 static DECLARE_WORK(reg_regdb_work, reg_regdb_search);
@@ -1225,7 +1225,7 @@ static void update_all_wiphy_regulatory(enum nl80211_reg_initiator initiator)
 	struct cfg80211_registered_device *rdev;
 	struct wiphy *wiphy;
 
-	assert_cfg80211_lock();
+	ASSERT_RTNL();
 
 	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
 		wiphy = &rdev->wiphy;
@@ -1570,21 +1570,19 @@ static void reg_process_pending_hints(void)
 {
 	struct regulatory_request *reg_request, *lr;
 
-	mutex_lock(&cfg80211_mutex);
-	mutex_lock(&reg_mutex);
 	lr = get_last_request();
 
 	/* When last_request->processed becomes true this will be rescheduled */
 	if (lr && !lr->processed) {
 		REG_DBG_PRINT("Pending regulatory request, waiting for it to be processed...\n");
-		goto out;
+		return;
 	}
 
 	spin_lock(&reg_requests_lock);
 
 	if (list_empty(&reg_requests_list)) {
 		spin_unlock(&reg_requests_lock);
-		goto out;
+		return;
 	}
 
 	reg_request = list_first_entry(&reg_requests_list,
@@ -1595,10 +1593,6 @@ static void reg_process_pending_hints(void)
 	spin_unlock(&reg_requests_lock);
 
 	reg_process_hint(reg_request, reg_request->initiator);
-
-out:
-	mutex_unlock(&reg_mutex);
-	mutex_unlock(&cfg80211_mutex);
 }
 
 /* Processes beacon hints -- this has nothing to do with country IEs */
@@ -1607,9 +1601,6 @@ static void reg_process_pending_beacon_hints(void)
 	struct cfg80211_registered_device *rdev;
 	struct reg_beacon *pending_beacon, *tmp;
 
-	mutex_lock(&cfg80211_mutex);
-	mutex_lock(&reg_mutex);
-
 	/* This goes through the _pending_ beacon list */
 	spin_lock_bh(&reg_pending_beacons_lock);
 
@@ -1626,14 +1617,16 @@ static void reg_process_pending_beacon_hints(void)
 	}
 
 	spin_unlock_bh(&reg_pending_beacons_lock);
-	mutex_unlock(&reg_mutex);
-	mutex_unlock(&cfg80211_mutex);
 }
 
 static void reg_todo(struct work_struct *work)
 {
+	rtnl_lock();
+	mutex_lock(&reg_mutex);
 	reg_process_pending_hints();
 	reg_process_pending_beacon_hints();
+	mutex_unlock(&reg_mutex);
+	rtnl_unlock();
 }
 
 static void queue_regulatory_request(struct regulatory_request *request)
@@ -1717,10 +1710,6 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
 }
 EXPORT_SYMBOL(regulatory_hint);
 
-/*
- * We hold wdev_lock() here so we cannot hold cfg80211_mutex() and
- * therefore cannot iterate over the rdev list here.
- */
 void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
 			 const u8 *country_ie, u8 country_ie_len)
 {
@@ -1752,7 +1741,7 @@ void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
 	/*
 	 * We will run this only upon a successful connection on cfg80211.
 	 * We leave conflict resolution to the workqueue, where can hold
-	 * cfg80211_mutex.
+	 * the RTNL.
 	 */
 	if (lr->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE &&
 	    lr->wiphy_idx != WIPHY_IDX_INVALID)
@@ -1858,7 +1847,8 @@ static void restore_regulatory_settings(bool reset_user)
 	LIST_HEAD(tmp_reg_req_list);
 	struct cfg80211_registered_device *rdev;
 
-	mutex_lock(&cfg80211_mutex);
+	ASSERT_RTNL();
+
 	mutex_lock(&reg_mutex);
 
 	reset_regdomains(true, &world_regdom);
@@ -1915,7 +1905,6 @@ static void restore_regulatory_settings(bool reset_user)
 	spin_unlock(&reg_requests_lock);
 
 	mutex_unlock(&reg_mutex);
-	mutex_unlock(&cfg80211_mutex);
 
 	REG_DBG_PRINT("Kicking the queue\n");
 
@@ -2297,7 +2286,6 @@ void wiphy_regulatory_register(struct wiphy *wiphy)
 	mutex_unlock(&reg_mutex);
 }
 
-/* Caller must hold cfg80211_mutex */
 void wiphy_regulatory_deregister(struct wiphy *wiphy)
 {
 	struct wiphy *request_wiphy = NULL;
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 2ce44a7..dd01b58 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -169,7 +169,7 @@ void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak)
 	union iwreq_data wrqu;
 #endif
 
-	lockdep_assert_held(&rdev->sched_scan_mtx);
+	ASSERT_RTNL();
 
 	request = rdev->scan_req;
 
@@ -230,9 +230,9 @@ void __cfg80211_scan_done(struct work_struct *wk)
 	rdev = container_of(wk, struct cfg80211_registered_device,
 			    scan_done_wk);
 
-	mutex_lock(&rdev->sched_scan_mtx);
+	rtnl_lock();
 	___cfg80211_scan_done(rdev, false);
-	mutex_unlock(&rdev->sched_scan_mtx);
+	rtnl_unlock();
 }
 
 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
@@ -241,6 +241,7 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
 	WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
 
 	request->aborted = aborted;
+	request->notified = true;
 	queue_work(cfg80211_wq, &wiphy_to_dev(request->wiphy)->scan_done_wk);
 }
 EXPORT_SYMBOL(cfg80211_scan_done);
@@ -255,7 +256,7 @@ void __cfg80211_sched_scan_results(struct work_struct *wk)
 
 	request = rdev->sched_scan_req;
 
-	mutex_lock(&rdev->sched_scan_mtx);
+	rtnl_lock();
 
 	/* we don't have sched_scan_req anymore if the scan is stopping */
 	if (request) {
@@ -270,7 +271,7 @@ void __cfg80211_sched_scan_results(struct work_struct *wk)
 		nl80211_send_sched_scan_results(rdev, request->dev);
 	}
 
-	mutex_unlock(&rdev->sched_scan_mtx);
+	rtnl_unlock();
 }
 
 void cfg80211_sched_scan_results(struct wiphy *wiphy)
@@ -289,9 +290,9 @@ void cfg80211_sched_scan_stopped(struct wiphy *wiphy)
 
 	trace_cfg80211_sched_scan_stopped(wiphy);
 
-	mutex_lock(&rdev->sched_scan_mtx);
+	rtnl_lock();
 	__cfg80211_stop_sched_scan(rdev, true);
-	mutex_unlock(&rdev->sched_scan_mtx);
+	rtnl_unlock();
 }
 EXPORT_SYMBOL(cfg80211_sched_scan_stopped);
 
@@ -300,7 +301,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
 {
 	struct net_device *dev;
 
-	lockdep_assert_held(&rdev->sched_scan_mtx);
+	ASSERT_RTNL();
 
 	if (!rdev->sched_scan_req)
 		return -ENOENT;
@@ -1043,21 +1044,19 @@ EXPORT_SYMBOL(cfg80211_unlink_bss);
 static struct cfg80211_registered_device *
 cfg80211_get_dev_from_ifindex(struct net *net, int ifindex)
 {
-	struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV);
+	struct cfg80211_registered_device *rdev;
 	struct net_device *dev;
 
-	mutex_lock(&cfg80211_mutex);
+	ASSERT_RTNL();
+
 	dev = dev_get_by_index(net, ifindex);
 	if (!dev)
-		goto out;
-	if (dev->ieee80211_ptr) {
+		return ERR_PTR(-ENODEV);
+	if (dev->ieee80211_ptr)
 		rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
-		mutex_lock(&rdev->mtx);
-	} else
+	else
 		rdev = ERR_PTR(-ENODEV);
 	dev_put(dev);
- out:
-	mutex_unlock(&cfg80211_mutex);
 	return rdev;
 }
 
@@ -1083,7 +1082,6 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
 
-	mutex_lock(&rdev->sched_scan_mtx);
 	if (rdev->scan_req) {
 		err = -EBUSY;
 		goto out;
@@ -1190,9 +1188,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
 		dev_hold(dev);
 	}
  out:
-	mutex_unlock(&rdev->sched_scan_mtx);
 	kfree(creq);
-	cfg80211_unlock_rdev(rdev);
 	return err;
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_siwscan);
@@ -1491,10 +1487,8 @@ int cfg80211_wext_giwscan(struct net_device *dev,
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
 
-	if (rdev->scan_req) {
-		res = -EAGAIN;
-		goto out;
-	}
+	if (rdev->scan_req)
+		return -EAGAIN;
 
 	res = ieee80211_scan_results(rdev, info, extra, data->length);
 	data->length = 0;
@@ -1503,8 +1497,6 @@ int cfg80211_wext_giwscan(struct net_device *dev,
 		res = 0;
 	}
 
- out:
-	cfg80211_unlock_rdev(rdev);
 	return res;
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_giwscan);
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 3ed35c3..4dbf314 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -43,35 +43,29 @@ static bool cfg80211_is_all_idle(void)
 	struct wireless_dev *wdev;
 	bool is_all_idle = true;
 
-	mutex_lock(&cfg80211_mutex);
-
 	/*
 	 * All devices must be idle as otherwise if you are actively
 	 * scanning some new beacon hints could be learned and would
 	 * count as new regulatory hints.
 	 */
 	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
-		cfg80211_lock_rdev(rdev);
 		list_for_each_entry(wdev, &rdev->wdev_list, list) {
 			wdev_lock(wdev);
 			if (wdev->sme_state != CFG80211_SME_IDLE)
 				is_all_idle = false;
 			wdev_unlock(wdev);
 		}
-		cfg80211_unlock_rdev(rdev);
 	}
 
-	mutex_unlock(&cfg80211_mutex);
-
 	return is_all_idle;
 }
 
 static void disconnect_work(struct work_struct *work)
 {
-	if (!cfg80211_is_all_idle())
-		return;
-
-	regulatory_hint_disconnect();
+	rtnl_lock();
+	if (cfg80211_is_all_idle())
+		regulatory_hint_disconnect();
+	rtnl_unlock();
 }
 
 static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
@@ -85,7 +79,6 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
 	ASSERT_RTNL();
 	ASSERT_RDEV_LOCK(rdev);
 	ASSERT_WDEV_LOCK(wdev);
-	lockdep_assert_held(&rdev->sched_scan_mtx);
 
 	if (rdev->scan_req)
 		return -EBUSY;
@@ -226,9 +219,6 @@ void cfg80211_conn_work(struct work_struct *work)
 	u8 bssid_buf[ETH_ALEN], *bssid = NULL;
 
 	rtnl_lock();
-	cfg80211_lock_rdev(rdev);
-	mutex_lock(&rdev->devlist_mtx);
-	mutex_lock(&rdev->sched_scan_mtx);
 
 	list_for_each_entry(wdev, &rdev->wdev_list, list) {
 		if (!wdev->netdev)
@@ -256,9 +246,6 @@ void cfg80211_conn_work(struct work_struct *work)
 		wdev_unlock(wdev);
 	}
 
-	mutex_unlock(&rdev->sched_scan_mtx);
-	mutex_unlock(&rdev->devlist_mtx);
-	cfg80211_unlock_rdev(rdev);
 	rtnl_unlock();
 }
 
@@ -931,14 +918,9 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
 {
 	int err;
 
-	mutex_lock(&rdev->devlist_mtx);
-	/* might request scan - scan_mtx -> wdev_mtx dependency */
-	mutex_lock(&rdev->sched_scan_mtx);
 	wdev_lock(dev->ieee80211_ptr);
 	err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL);
 	wdev_unlock(dev->ieee80211_ptr);
-	mutex_unlock(&rdev->sched_scan_mtx);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 0962f10..5017242 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -808,12 +808,8 @@ void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev)
 	ASSERT_RTNL();
 	ASSERT_RDEV_LOCK(rdev);
 
-	mutex_lock(&rdev->devlist_mtx);
-
 	list_for_each_entry(wdev, &rdev->wdev_list, list)
 		cfg80211_process_wdev_events(wdev);
-
-	mutex_unlock(&rdev->devlist_mtx);
 }
 
 int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
@@ -845,10 +841,8 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 		return -EBUSY;
 
 	if (ntype != otype && netif_running(dev)) {
-		mutex_lock(&rdev->devlist_mtx);
 		err = cfg80211_can_change_interface(rdev, dev->ieee80211_ptr,
 						    ntype);
-		mutex_unlock(&rdev->devlist_mtx);
 		if (err)
 			return err;
 
@@ -1210,8 +1204,6 @@ int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
 	if (!beacon_int)
 		return -EINVAL;
 
-	mutex_lock(&rdev->devlist_mtx);
-
 	list_for_each_entry(wdev, &rdev->wdev_list, list) {
 		if (!wdev->beacon_interval)
 			continue;
@@ -1221,8 +1213,6 @@ int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
 		}
 	}
 
-	mutex_unlock(&rdev->devlist_mtx);
-
 	return res;
 }
 
@@ -1246,7 +1236,6 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
 	int i, j;
 
 	ASSERT_RTNL();
-	lockdep_assert_held(&rdev->devlist_mtx);
 
 	if (WARN_ON(hweight32(radar_detect) > 1))
 		return -EINVAL;
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index d997d0f..e7c6e86 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -72,7 +72,6 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 	struct cfg80211_registered_device *rdev;
 	struct vif_params vifparams;
 	enum nl80211_iftype type;
-	int ret;
 
 	rdev = wiphy_to_dev(wdev->wiphy);
 
@@ -98,11 +97,7 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
 
 	memset(&vifparams, 0, sizeof(vifparams));
 
-	cfg80211_lock_rdev(rdev);
-	ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
-	cfg80211_unlock_rdev(rdev);
-
-	return ret;
+	return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
 }
 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 
@@ -579,13 +574,10 @@ static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 {
 	int err;
 
-	/* devlist mutex needed for possible IBSS re-join */
-	mutex_lock(&rdev->devlist_mtx);
 	wdev_lock(dev->ieee80211_ptr);
 	err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
 					remove, tx_key, idx, params);
 	wdev_unlock(dev->ieee80211_ptr);
-	mutex_unlock(&rdev->devlist_mtx);
 
 	return err;
 }
@@ -787,7 +779,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
 	struct cfg80211_chan_def chandef = {
 		.width = NL80211_CHAN_WIDTH_20_NOHT,
 	};
-	int freq, err;
+	int freq;
 
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
@@ -804,10 +796,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
 		chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 		if (!chandef.chan)
 			return -EINVAL;
-		mutex_lock(&rdev->devlist_mtx);
-		err = cfg80211_set_monitor_channel(rdev, &chandef);
-		mutex_unlock(&rdev->devlist_mtx);
-		return err;
+		return cfg80211_set_monitor_channel(rdev, &chandef);
 	case NL80211_IFTYPE_MESH_POINT:
 		freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 		if (freq < 0)
@@ -818,10 +807,7 @@ static int cfg80211_wext_siwfreq(struct net_device *dev,
 		chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 		if (!chandef.chan)
 			return -EINVAL;
-		mutex_lock(&rdev->devlist_mtx);
-		err = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
-		mutex_unlock(&rdev->devlist_mtx);
-		return err;
+		return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
 	default:
 		return -EOPNOTSUPP;
 	}
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index e79cb5c..aeefd68 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -87,9 +87,6 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
 			return -EINVAL;
 	}
 
-	cfg80211_lock_rdev(rdev);
-	mutex_lock(&rdev->devlist_mtx);
-	mutex_lock(&rdev->sched_scan_mtx);
 	wdev_lock(wdev);
 
 	if (wdev->sme_state != CFG80211_SME_IDLE) {
@@ -136,9 +133,6 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
 	err = cfg80211_mgd_wext_connect(rdev, wdev);
  out:
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->sched_scan_mtx);
-	mutex_unlock(&rdev->devlist_mtx);
-	cfg80211_unlock_rdev(rdev);
 	return err;
 }
 
@@ -190,9 +184,6 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
 	if (len > 0 && ssid[len - 1] == '\0')
 		len--;
 
-	cfg80211_lock_rdev(rdev);
-	mutex_lock(&rdev->devlist_mtx);
-	mutex_lock(&rdev->sched_scan_mtx);
 	wdev_lock(wdev);
 
 	err = 0;
@@ -226,9 +217,6 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
 	err = cfg80211_mgd_wext_connect(rdev, wdev);
  out:
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->sched_scan_mtx);
-	mutex_unlock(&rdev->devlist_mtx);
-	cfg80211_unlock_rdev(rdev);
 	return err;
 }
 
@@ -287,9 +275,6 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
 	if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
 		bssid = NULL;
 
-	cfg80211_lock_rdev(rdev);
-	mutex_lock(&rdev->devlist_mtx);
-	mutex_lock(&rdev->sched_scan_mtx);
 	wdev_lock(wdev);
 
 	if (wdev->sme_state != CFG80211_SME_IDLE) {
@@ -318,9 +303,6 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
 	err = cfg80211_mgd_wext_connect(rdev, wdev);
  out:
 	wdev_unlock(wdev);
-	mutex_unlock(&rdev->sched_scan_mtx);
-	mutex_unlock(&rdev->devlist_mtx);
-	cfg80211_unlock_rdev(rdev);
 	return err;
 }
 
-- 
cgit v0.10.2


From 8d61ffa5e01c5f676431d12caba17db164a48a86 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 10 May 2013 12:32:47 +0200
Subject: cfg80211/mac80211: use cfg80211 wdev mutex in mac80211

Using separate locks in cfg80211 and mac80211 has always
caused issues, for example having to unlock in places in
mac80211 to call cfg80211, which even needed a framework
to make cfg80211 calls after some functions returned etc.

Additionally, I suspect some issues people have reported
with the cfg80211 state getting confused could be due to
such issues, when cfg80211 is asking mac80211 to change
state but mac80211 is in the process of telling cfg80211
that the state changed (in another way.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/Documentation/DocBook/80211.tmpl b/Documentation/DocBook/80211.tmpl
index 0f6a3ed..ebe8969 100644
--- a/Documentation/DocBook/80211.tmpl
+++ b/Documentation/DocBook/80211.tmpl
@@ -132,9 +132,7 @@
 !Finclude/net/cfg80211.h cfg80211_send_rx_assoc
 !Finclude/net/cfg80211.h cfg80211_send_assoc_timeout
 !Finclude/net/cfg80211.h cfg80211_send_deauth
-!Finclude/net/cfg80211.h __cfg80211_send_deauth
 !Finclude/net/cfg80211.h cfg80211_send_disassoc
-!Finclude/net/cfg80211.h __cfg80211_send_disassoc
 !Finclude/net/cfg80211.h cfg80211_ibss_joined
 !Finclude/net/cfg80211.h cfg80211_connect_result
 !Finclude/net/cfg80211.h cfg80211_roamed
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 5430f70..9f45d74 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1867,7 +1867,9 @@ struct cfg80211_update_ft_ies_params {
  * @get_mpath: get a mesh path for the given parameters
  * @dump_mpath: dump mesh path callback -- resume dump at index @idx
  * @join_mesh: join the mesh network with the specified parameters
+ *	(invoked with the wireless_dev mutex held)
  * @leave_mesh: leave the current mesh network
+ *	(invoked with the wireless_dev mutex held)
  *
  * @get_mesh_config: Get the current mesh configuration
  *
@@ -1894,20 +1896,28 @@ struct cfg80211_update_ft_ies_params {
  *	the scan/scan_done bracket too.
  *
  * @auth: Request to authenticate with the specified peer
+ *	(invoked with the wireless_dev mutex held)
  * @assoc: Request to (re)associate with the specified peer
+ *	(invoked with the wireless_dev mutex held)
  * @deauth: Request to deauthenticate from the specified peer
+ *	(invoked with the wireless_dev mutex held)
  * @disassoc: Request to disassociate from the specified peer
+ *	(invoked with the wireless_dev mutex held)
  *
  * @connect: Connect to the ESS with the specified parameters. When connected,
  *	call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
  *	If the connection fails for some reason, call cfg80211_connect_result()
  *	with the status from the AP.
+ *	(invoked with the wireless_dev mutex held)
  * @disconnect: Disconnect from the BSS/ESS.
+ *	(invoked with the wireless_dev mutex held)
  *
  * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
  *	cfg80211_ibss_joined(), also call that function when changing BSSID due
  *	to a merge.
+ *	(invoked with the wireless_dev mutex held)
  * @leave_ibss: Leave the IBSS.
+ *	(invoked with the wireless_dev mutex held)
  *
  * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or
  *	MESH mode)
@@ -2851,7 +2861,8 @@ struct cfg80211_cached_keys;
  *	by cfg80211 on change_interface
  * @mgmt_registrations: list of registrations for management frames
  * @mgmt_registrations_lock: lock for the list
- * @mtx: mutex used to lock data in this struct
+ * @mtx: mutex used to lock data in this struct, may be used by drivers
+ *	and some API functions require it held
  * @cleanup_work: work struct used for cleanup that can't be done directly
  * @beacon_interval: beacon interval used on this device for transmitting
  *	beacons, 0 when not valid
@@ -3424,7 +3435,8 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
  * This function is called whenever an authentication has been processed in
  * station mode. The driver is required to call either this function or
  * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
- * call. This function may sleep.
+ * call. This function may sleep. The caller must hold the corresponding wdev's
+ * mutex.
  */
 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
 
@@ -3433,7 +3445,8 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
  * @dev: network device
  * @addr: The MAC address of the device with which the authentication timed out
  *
- * This function may sleep.
+ * This function may sleep. The caller must hold the corresponding wdev's
+ * mutex.
  */
 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
 
@@ -3448,7 +3461,8 @@ void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
  * This function is called whenever a (re)association response has been
  * processed in station mode. The driver is required to call either this
  * function or cfg80211_send_assoc_timeout() to indicate the result of
- * cfg80211_ops::assoc() call. This function may sleep.
+ * cfg80211_ops::assoc() call. This function may sleep. The caller must hold
+ * the corresponding wdev's mutex.
  */
 void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
 			    const u8 *buf, size_t len);
@@ -3458,7 +3472,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
  * @dev: network device
  * @addr: The MAC address of the device with which the association timed out
  *
- * This function may sleep.
+ * This function may sleep. The caller must hold the corresponding wdev's mutex.
  */
 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
 
@@ -3470,21 +3484,12 @@ void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
  *
  * This function is called whenever deauthentication has been processed in
  * station mode. This includes both received deauthentication frames and
- * locally generated ones. This function may sleep.
+ * locally generated ones. This function may sleep. The caller must hold the
+ * corresponding wdev's mutex.
  */
 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
 
 /**
- * __cfg80211_send_deauth - notification of processed deauthentication
- * @dev: network device
- * @buf: deauthentication frame (header + body)
- * @len: length of the frame data
- *
- * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
- */
-void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
-
-/**
  * cfg80211_send_disassoc - notification of processed disassociation
  * @dev: network device
  * @buf: disassociation response frame (header + body)
@@ -3492,22 +3497,12 @@ void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
  *
  * This function is called whenever disassociation has been processed in
  * station mode. This includes both received disassociation frames and locally
- * generated ones. This function may sleep.
+ * generated ones. This function may sleep. The caller must hold the
+ * corresponding wdev's mutex.
  */
 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
 
 /**
- * __cfg80211_send_disassoc - notification of processed disassociation
- * @dev: network device
- * @buf: disassociation response frame (header + body)
- * @len: length of the frame data
- *
- * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
- */
-void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
-	size_t len);
-
-/**
  * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
  * @dev: network device
  * @buf: deauthentication frame (header + body)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index eb42190..232edf7 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2318,7 +2318,7 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
 	enum ieee80211_smps_mode old_req;
 	int err;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	lockdep_assert_held(&sdata->wdev.mtx);
 
 	old_req = sdata->u.mgd.req_smps;
 	sdata->u.mgd.req_smps = smps_mode;
@@ -2375,9 +2375,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	local->dynamic_ps_forced_timeout = timeout;
 
 	/* no change, but if automatic follow powersave */
-	mutex_lock(&sdata->u.mgd.mtx);
 	__ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
-	mutex_unlock(&sdata->u.mgd.mtx);
 
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index f83074f..cafe614 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -228,9 +228,9 @@ static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return -EOPNOTSUPP;
 
-	mutex_lock(&sdata->u.mgd.mtx);
+	sdata_lock(sdata);
 	err = __ieee80211_request_smps(sdata, smps_mode);
-	mutex_unlock(&sdata->u.mgd.mtx);
+	sdata_unlock(sdata);
 
 	return err;
 }
@@ -313,16 +313,16 @@ static ssize_t ieee80211_if_parse_tkip_mic_test(
 	case NL80211_IFTYPE_STATION:
 		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
 		/* BSSID SA DA */
-		mutex_lock(&sdata->u.mgd.mtx);
+		sdata_lock(sdata);
 		if (!sdata->u.mgd.associated) {
-			mutex_unlock(&sdata->u.mgd.mtx);
+			sdata_unlock(sdata);
 			dev_kfree_skb(skb);
 			return -ENOTCONN;
 		}
 		memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
 		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 		memcpy(hdr->addr3, addr, ETH_ALEN);
-		mutex_unlock(&sdata->u.mgd.mtx);
+		sdata_unlock(sdata);
 		break;
 	default:
 		dev_kfree_skb(skb);
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index af8cee0..75dff33 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -429,9 +429,9 @@ void ieee80211_request_smps_work(struct work_struct *work)
 		container_of(work, struct ieee80211_sub_if_data,
 			     u.mgd.request_smps_work);
 
-	mutex_lock(&sdata->u.mgd.mtx);
+	sdata_lock(sdata);
 	__ieee80211_request_smps(sdata, sdata->u.mgd.driver_smps_mode);
-	mutex_unlock(&sdata->u.mgd.mtx);
+	sdata_unlock(sdata);
 }
 
 void ieee80211_request_smps(struct ieee80211_vif *vif,
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 956ba63..caa4b4f 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -54,7 +54,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	struct beacon_data *presp;
 	int frame_len;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	/* Reset own TSF to allow time synchronization work. */
 	drv_reset_tsf(local, sdata);
@@ -74,7 +74,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	}
 
 	presp = rcu_dereference_protected(ifibss->presp,
-					  lockdep_is_held(&ifibss->mtx));
+					  lockdep_is_held(&sdata->wdev.mtx));
 	rcu_assign_pointer(ifibss->presp, NULL);
 	if (presp)
 		kfree_rcu(presp, rcu_head);
@@ -263,7 +263,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	const struct cfg80211_bss_ies *ies;
 	u64 tsf;
 
-	lockdep_assert_held(&sdata->u.ibss.mtx);
+	sdata_assert_lock(sdata);
 
 	if (beacon_int < 10)
 		beacon_int = 10;
@@ -410,7 +410,7 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 	struct sta_info *sta;
 	u8 deauth_frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
-	lockdep_assert_held(&sdata->u.ibss.mtx);
+	sdata_assert_lock(sdata);
 
 	if (len < 24 + 6)
 		return;
@@ -677,7 +677,7 @@ static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
 	int active = 0;
 	struct sta_info *sta;
 
-	lockdep_assert_held(&sdata->u.ibss.mtx);
+	sdata_assert_lock(sdata);
 
 	rcu_read_lock();
 
@@ -703,7 +703,7 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	mod_timer(&ifibss->timer,
 		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
@@ -734,7 +734,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 	u16 capability;
 	int i;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	if (ifibss->fixed_bssid) {
 		memcpy(bssid, ifibss->bssid, ETH_ALEN);
@@ -777,7 +777,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	int active_ibss;
 	u16 capability;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 	ibss_dbg(sdata, "sta_find_ibss (active_ibss=%d)\n", active_ibss);
@@ -847,10 +847,10 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	struct beacon_data *presp;
 	u8 *pos, *end;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	presp = rcu_dereference_protected(ifibss->presp,
-					  lockdep_is_held(&ifibss->mtx));
+					  lockdep_is_held(&sdata->wdev.mtx));
 
 	if (ifibss->state != IEEE80211_IBSS_MLME_JOINED ||
 	    len < 24 + 2 || !presp)
@@ -934,7 +934,7 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
 
-	mutex_lock(&sdata->u.ibss.mtx);
+	sdata_lock(sdata);
 
 	if (!sdata->u.ibss.ssid_len)
 		goto mgmt_out; /* not ready to merge yet */
@@ -957,7 +957,7 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	}
 
  mgmt_out:
-	mutex_unlock(&sdata->u.ibss.mtx);
+	sdata_unlock(sdata);
 }
 
 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
@@ -965,7 +965,7 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct sta_info *sta;
 
-	mutex_lock(&ifibss->mtx);
+	sdata_lock(sdata);
 
 	/*
 	 * Work could be scheduled after scan or similar
@@ -1001,7 +1001,7 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
 	}
 
  out:
-	mutex_unlock(&ifibss->mtx);
+	sdata_unlock(sdata);
 }
 
 static void ieee80211_ibss_timer(unsigned long data)
@@ -1018,7 +1018,6 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
 
 	setup_timer(&ifibss->timer, ieee80211_ibss_timer,
 		    (unsigned long) sdata);
-	mutex_init(&ifibss->mtx);
 	INIT_LIST_HEAD(&ifibss->incomplete_stations);
 	spin_lock_init(&ifibss->incomplete_lock);
 }
@@ -1045,8 +1044,6 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 {
 	u32 changed = 0;
 
-	mutex_lock(&sdata->u.ibss.mtx);
-
 	if (params->bssid) {
 		memcpy(sdata->u.ibss.bssid, params->bssid, ETH_ALEN);
 		sdata->u.ibss.fixed_bssid = true;
@@ -1079,8 +1076,6 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 	memcpy(sdata->u.ibss.ssid, params->ssid, params->ssid_len);
 	sdata->u.ibss.ssid_len = params->ssid_len;
 
-	mutex_unlock(&sdata->u.ibss.mtx);
-
 	/*
 	 * 802.11n-2009 9.13.3.1: In an IBSS, the HT Protection field is
 	 * reserved, but an HT STA shall protect HT transmissions as though
@@ -1116,8 +1111,6 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 	struct sta_info *sta;
 	struct beacon_data *presp;
 
-	mutex_lock(&sdata->u.ibss.mtx);
-
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 
 	if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
@@ -1161,7 +1154,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 	/* remove beacon */
 	kfree(sdata->u.ibss.ie);
 	presp = rcu_dereference_protected(ifibss->presp,
-					  lockdep_is_held(&sdata->u.ibss.mtx));
+					  lockdep_is_held(&sdata->wdev.mtx));
 	RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
 	sdata->vif.bss_conf.ibss_joined = false;
 	sdata->vif.bss_conf.ibss_creator = false;
@@ -1177,7 +1170,5 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 
 	del_timer_sync(&sdata->u.ibss.timer);
 
-	mutex_unlock(&sdata->u.ibss.mtx);
-
 	return 0;
 }
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index ba3cd28..9eed6f1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -394,7 +394,6 @@ struct ieee80211_if_managed {
 	bool nullfunc_failed;
 	bool connection_loss;
 
-	struct mutex mtx;
 	struct cfg80211_bss *associated;
 	struct ieee80211_mgd_auth_data *auth_data;
 	struct ieee80211_mgd_assoc_data *assoc_data;
@@ -488,8 +487,6 @@ struct ieee80211_if_managed {
 struct ieee80211_if_ibss {
 	struct timer_list timer;
 
-	struct mutex mtx;
-
 	unsigned long last_scan_completed;
 
 	u32 basic_rates;
@@ -580,8 +577,6 @@ struct ieee80211_if_mesh {
 	bool accepting_plinks;
 	int num_gates;
 	struct beacon_data __rcu *beacon;
-	/* just protects beacon updates for now */
-	struct mutex mtx;
 	const u8 *ie;
 	u8 ie_len;
 	enum {
@@ -778,6 +773,26 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
 	return container_of(p, struct ieee80211_sub_if_data, vif);
 }
 
+static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
+	__acquires(&sdata->wdev.mtx)
+{
+	mutex_lock(&sdata->wdev.mtx);
+	__acquire(&sdata->wdev.mtx);
+}
+
+static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
+	__releases(&sdata->wdev.mtx)
+{
+	mutex_unlock(&sdata->wdev.mtx);
+	__release(&sdata->wdev.mtx);
+}
+
+static inline void
+sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
+{
+	lockdep_assert_held(&sdata->wdev.mtx);
+}
+
 static inline enum ieee80211_band
 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
 {
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 8a7bfc4..1998f14 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -331,7 +331,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
 		return NOTIFY_DONE;
 
 	ifmgd = &sdata->u.mgd;
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 
 	/* Copy the addresses to the bss_conf list */
 	ifa = idev->ifa_list;
@@ -349,7 +349,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
 		ieee80211_bss_info_change_notify(sdata,
 						 BSS_CHANGED_ARP_FILTER);
 
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 
 	return NOTIFY_DONE;
 }
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index c14bb81..b3d1fdd 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -161,8 +161,11 @@ void mesh_sta_cleanup(struct sta_info *sta)
 		del_timer_sync(&sta->plink_timer);
 	}
 
-	if (changed)
+	if (changed) {
+		sdata_lock(sdata);
 		ieee80211_mbss_info_change_notify(sdata, changed);
+		sdata_unlock(sdata);
+	}
 }
 
 int mesh_rmc_init(struct ieee80211_sub_if_data *sdata)
@@ -577,7 +580,9 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata)
 	mesh_path_expire(sdata);
 
 	changed = mesh_accept_plinks_update(sdata);
+	sdata_lock(sdata);
 	ieee80211_mbss_info_change_notify(sdata, changed);
+	sdata_unlock(sdata);
 
 	mod_timer(&ifmsh->housekeeping_timer,
 		  round_jiffies(jiffies +
@@ -697,25 +702,21 @@ out_free:
 }
 
 static int
-ieee80211_mesh_rebuild_beacon(struct ieee80211_if_mesh *ifmsh)
+ieee80211_mesh_rebuild_beacon(struct ieee80211_sub_if_data *sdata)
 {
 	struct beacon_data *old_bcn;
 	int ret;
 
-	mutex_lock(&ifmsh->mtx);
-
-	old_bcn = rcu_dereference_protected(ifmsh->beacon,
-					    lockdep_is_held(&ifmsh->mtx));
-	ret = ieee80211_mesh_build_beacon(ifmsh);
+	old_bcn = rcu_dereference_protected(sdata->u.mesh.beacon,
+					    lockdep_is_held(&sdata->wdev.mtx));
+	ret = ieee80211_mesh_build_beacon(&sdata->u.mesh);
 	if (ret)
 		/* just reuse old beacon */
-		goto out;
+		return ret;
 
 	if (old_bcn)
 		kfree_rcu(old_bcn, rcu_head);
-out:
-	mutex_unlock(&ifmsh->mtx);
-	return ret;
+	return 0;
 }
 
 void ieee80211_mbss_info_change_notify(struct ieee80211_sub_if_data *sdata,
@@ -726,7 +727,7 @@ void ieee80211_mbss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 			BSS_CHANGED_HT |
 			BSS_CHANGED_BASIC_RATES |
 			BSS_CHANGED_BEACON_INT)))
-		if (ieee80211_mesh_rebuild_beacon(&sdata->u.mesh))
+		if (ieee80211_mesh_rebuild_beacon(sdata))
 			return;
 	ieee80211_bss_info_change_notify(sdata, changed);
 }
@@ -788,12 +789,12 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.bss_conf.enable_beacon = false;
 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
-	mutex_lock(&ifmsh->mtx);
+	sdata_lock(sdata);
 	bcn = rcu_dereference_protected(ifmsh->beacon,
-					lockdep_is_held(&ifmsh->mtx));
+					lockdep_is_held(&sdata->wdev.mtx));
 	rcu_assign_pointer(ifmsh->beacon, NULL);
 	kfree_rcu(bcn, rcu_head);
-	mutex_unlock(&ifmsh->mtx);
+	sdata_unlock(sdata);
 
 	/* flush STAs and mpaths on this iface */
 	sta_info_flush(sdata);
@@ -1041,7 +1042,6 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
 	spin_lock_init(&ifmsh->mesh_preq_queue_lock);
 	spin_lock_init(&ifmsh->sync_offset_lock);
 	RCU_INIT_POINTER(ifmsh->beacon, NULL);
-	mutex_init(&ifmsh->mtx);
 
 	sdata->vif.bss_conf.bssid = zero_addr;
 }
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 09bebed..6c4da99 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -517,7 +517,9 @@ void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
 	ieee80211_mps_frame_release(sta, elems);
 out:
 	rcu_read_unlock();
+	sdata_lock(sdata);
 	ieee80211_mbss_info_change_notify(sdata, changed);
+	sdata_unlock(sdata);
 }
 
 static void mesh_plink_timer(unsigned long data)
@@ -1068,6 +1070,9 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_unlock();
 
-	if (changed)
+	if (changed) {
+		sdata_lock(sdata);
 		ieee80211_mbss_info_change_notify(sdata, changed);
+		sdata_unlock(sdata);
+	}
 }
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1da3d6b..f44f4ca 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -91,41 +91,6 @@ MODULE_PARM_DESC(probe_wait_ms,
 #define IEEE80211_SIGNAL_AVE_MIN_COUNT	4
 
 /*
- * All cfg80211 functions have to be called outside a locked
- * section so that they can acquire a lock themselves... This
- * is much simpler than queuing up things in cfg80211, but we
- * do need some indirection for that here.
- */
-enum rx_mgmt_action {
-	/* no action required */
-	RX_MGMT_NONE,
-
-	/* caller must call cfg80211_send_deauth() */
-	RX_MGMT_CFG80211_DEAUTH,
-
-	/* caller must call cfg80211_send_disassoc() */
-	RX_MGMT_CFG80211_DISASSOC,
-
-	/* caller must call cfg80211_send_rx_auth() */
-	RX_MGMT_CFG80211_RX_AUTH,
-
-	/* caller must call cfg80211_send_rx_assoc() */
-	RX_MGMT_CFG80211_RX_ASSOC,
-
-	/* caller must call cfg80211_send_assoc_timeout() */
-	RX_MGMT_CFG80211_ASSOC_TIMEOUT,
-
-	/* used when a processed beacon causes a deauth */
-	RX_MGMT_CFG80211_TX_DEAUTH,
-};
-
-/* utils */
-static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd)
-{
-	lockdep_assert_held(&ifmgd->mtx);
-}
-
-/*
  * We can have multiple work items (and connection probing)
  * scheduling this timer, but we need to take care to only
  * reschedule it when it should fire _earlier_ than it was
@@ -135,13 +100,14 @@ static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd)
  * has happened -- the work that runs from this timer will
  * do that.
  */
-static void run_again(struct ieee80211_if_managed *ifmgd, unsigned long timeout)
+static void run_again(struct ieee80211_sub_if_data *sdata,
+		      unsigned long timeout)
 {
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
-	if (!timer_pending(&ifmgd->timer) ||
-	    time_before(timeout, ifmgd->timer.expires))
-		mod_timer(&ifmgd->timer, timeout);
+	if (!timer_pending(&sdata->u.mgd.timer) ||
+	    time_before(timeout, sdata->u.mgd.timer.expires))
+		mod_timer(&sdata->u.mgd.timer, timeout);
 }
 
 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata)
@@ -652,7 +618,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_channel *chan;
 	u32 rates = 0;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	rcu_read_lock();
 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
@@ -962,7 +928,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 	if (!ieee80211_sdata_running(sdata))
 		return;
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 	if (!ifmgd->associated)
 		goto out;
 
@@ -985,7 +951,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 					IEEE80211_QUEUE_STOP_REASON_CSA);
  out:
 	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 
 void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
@@ -1036,7 +1002,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	const struct ieee80211_ht_operation *ht_oper;
 	int secondary_channel_offset = -1;
 
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
 	if (!cbss)
 		return;
@@ -1845,7 +1811,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	u32 changed = 0;
 
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
 	if (WARN_ON_ONCE(tx && !frame_buf))
 		return;
@@ -2054,7 +2020,7 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
 	}
 
 	ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms);
-	run_again(ifmgd, ifmgd->probe_timeout);
+	run_again(sdata, ifmgd->probe_timeout);
 	if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
 		ieee80211_flush_queues(sdata->local, sdata);
 }
@@ -2068,7 +2034,7 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
 	if (!ieee80211_sdata_running(sdata))
 		return;
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 
 	if (!ifmgd->associated)
 		goto out;
@@ -2122,7 +2088,7 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
 	ifmgd->probe_send_count = 0;
 	ieee80211_mgd_probe_ap_send(sdata);
  out:
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 
 struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
@@ -2138,7 +2104,7 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
 	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
 		return NULL;
 
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
 	if (ifmgd->associated)
 		cbss = ifmgd->associated;
@@ -2171,9 +2137,9 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 	if (!ifmgd->associated) {
-		mutex_unlock(&ifmgd->mtx);
+		sdata_unlock(sdata);
 		return;
 	}
 
@@ -2184,13 +2150,9 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 	ieee80211_wake_queues_by_reason(&sdata->local->hw,
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
-	mutex_unlock(&ifmgd->mtx);
 
-	/*
-	 * must be outside lock due to cfg80211,
-	 * but that's not a problem.
-	 */
 	cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN);
+	sdata_unlock(sdata);
 }
 
 static void ieee80211_beacon_connection_loss_work(struct work_struct *work)
@@ -2257,7 +2219,7 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	sdata_assert_lock(sdata);
 
 	if (!assoc) {
 		sta_info_destroy_addr(sdata, auth_data->bss->bssid);
@@ -2298,27 +2260,26 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
 			    auth_data->key_idx, tx_flags);
 }
 
-static enum rx_mgmt_action __must_check
-ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
-		       struct ieee80211_mgmt *mgmt, size_t len)
+static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
+				   struct ieee80211_mgmt *mgmt, size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u8 bssid[ETH_ALEN];
 	u16 auth_alg, auth_transaction, status_code;
 	struct sta_info *sta;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (len < 24 + 6)
-		return RX_MGMT_NONE;
+		return;
 
 	if (!ifmgd->auth_data || ifmgd->auth_data->done)
-		return RX_MGMT_NONE;
+		return;
 
 	memcpy(bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN);
 
 	if (!ether_addr_equal(bssid, mgmt->bssid))
-		return RX_MGMT_NONE;
+		return;
 
 	auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
 	auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
@@ -2330,14 +2291,15 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 			   mgmt->sa, auth_alg, ifmgd->auth_data->algorithm,
 			   auth_transaction,
 			   ifmgd->auth_data->expected_transaction);
-		return RX_MGMT_NONE;
+		return;
 	}
 
 	if (status_code != WLAN_STATUS_SUCCESS) {
 		sdata_info(sdata, "%pM denied authentication (status %d)\n",
 			   mgmt->sa, status_code);
 		ieee80211_destroy_auth_data(sdata, false);
-		return RX_MGMT_CFG80211_RX_AUTH;
+		cfg80211_send_rx_auth(sdata->dev, (u8 *)mgmt, len);
+		return;
 	}
 
 	switch (ifmgd->auth_data->algorithm) {
@@ -2350,20 +2312,20 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 		if (ifmgd->auth_data->expected_transaction != 4) {
 			ieee80211_auth_challenge(sdata, mgmt, len);
 			/* need another frame */
-			return RX_MGMT_NONE;
+			return;
 		}
 		break;
 	default:
 		WARN_ONCE(1, "invalid auth alg %d",
 			  ifmgd->auth_data->algorithm);
-		return RX_MGMT_NONE;
+		return;
 	}
 
 	sdata_info(sdata, "authenticated\n");
 	ifmgd->auth_data->done = true;
 	ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC;
 	ifmgd->auth_data->timeout_started = true;
-	run_again(ifmgd, ifmgd->auth_data->timeout);
+	run_again(sdata, ifmgd->auth_data->timeout);
 
 	if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE &&
 	    ifmgd->auth_data->expected_transaction != 2) {
@@ -2371,7 +2333,8 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 		 * Report auth frame to user space for processing since another
 		 * round of Authentication frames is still needed.
 		 */
-		return RX_MGMT_CFG80211_RX_AUTH;
+		cfg80211_send_rx_auth(sdata->dev, (u8 *)mgmt, len);
+		return;
 	}
 
 	/* move station state to auth */
@@ -2387,30 +2350,29 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	}
 	mutex_unlock(&sdata->local->sta_mtx);
 
-	return RX_MGMT_CFG80211_RX_AUTH;
+	cfg80211_send_rx_auth(sdata->dev, (u8 *)mgmt, len);
+	return;
  out_err:
 	mutex_unlock(&sdata->local->sta_mtx);
 	/* ignore frame -- wait for timeout */
-	return RX_MGMT_NONE;
 }
 
 
-static enum rx_mgmt_action __must_check
-ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
-			 struct ieee80211_mgmt *mgmt, size_t len)
+static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_mgmt *mgmt, size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	const u8 *bssid = NULL;
 	u16 reason_code;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (len < 24 + 2)
-		return RX_MGMT_NONE;
+		return;
 
 	if (!ifmgd->associated ||
 	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
-		return RX_MGMT_NONE;
+		return;
 
 	bssid = ifmgd->associated->bssid;
 
@@ -2421,25 +2383,24 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
-	return RX_MGMT_CFG80211_DEAUTH;
+	cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, len);
 }
 
 
-static enum rx_mgmt_action __must_check
-ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
-			   struct ieee80211_mgmt *mgmt, size_t len)
+static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
+				       struct ieee80211_mgmt *mgmt, size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u16 reason_code;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (len < 24 + 2)
-		return RX_MGMT_NONE;
+		return;
 
 	if (!ifmgd->associated ||
 	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
-		return RX_MGMT_NONE;
+		return;
 
 	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
 
@@ -2448,7 +2409,7 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
-	return RX_MGMT_CFG80211_DISASSOC;
+	cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, len);
 }
 
 static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
@@ -2498,7 +2459,7 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	sdata_assert_lock(sdata);
 
 	if (!assoc) {
 		sta_info_destroy_addr(sdata, assoc_data->bss->bssid);
@@ -2679,10 +2640,9 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 	return true;
 }
 
-static enum rx_mgmt_action __must_check
-ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
-			     struct ieee80211_mgmt *mgmt, size_t len,
-			     struct cfg80211_bss **bss)
+static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_mgmt *mgmt,
+					 size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data;
@@ -2690,13 +2650,14 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	struct ieee802_11_elems elems;
 	u8 *pos;
 	bool reassoc;
+	struct cfg80211_bss *bss;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (!assoc_data)
-		return RX_MGMT_NONE;
+		return;
 	if (!ether_addr_equal(assoc_data->bss->bssid, mgmt->bssid))
-		return RX_MGMT_NONE;
+		return;
 
 	/*
 	 * AssocResp and ReassocResp have identical structure, so process both
@@ -2704,7 +2665,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	 */
 
 	if (len < 24 + 6)
-		return RX_MGMT_NONE;
+		return;
 
 	reassoc = ieee80211_is_reassoc_req(mgmt->frame_control);
 	capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
@@ -2731,22 +2692,23 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		assoc_data->timeout = jiffies + msecs_to_jiffies(ms);
 		assoc_data->timeout_started = true;
 		if (ms > IEEE80211_ASSOC_TIMEOUT)
-			run_again(ifmgd, assoc_data->timeout);
-		return RX_MGMT_NONE;
+			run_again(sdata, assoc_data->timeout);
+		return;
 	}
 
-	*bss = assoc_data->bss;
+	bss = assoc_data->bss;
 
 	if (status_code != WLAN_STATUS_SUCCESS) {
 		sdata_info(sdata, "%pM denied association (code=%d)\n",
 			   mgmt->sa, status_code);
 		ieee80211_destroy_assoc_data(sdata, false);
 	} else {
-		if (!ieee80211_assoc_success(sdata, *bss, mgmt, len)) {
+		if (!ieee80211_assoc_success(sdata, bss, mgmt, len)) {
 			/* oops -- internal error -- send timeout for now */
 			ieee80211_destroy_assoc_data(sdata, false);
-			cfg80211_put_bss(sdata->local->hw.wiphy, *bss);
-			return RX_MGMT_CFG80211_ASSOC_TIMEOUT;
+			cfg80211_put_bss(sdata->local->hw.wiphy, bss);
+			cfg80211_send_assoc_timeout(sdata->dev, mgmt->bssid);
+			return;
 		}
 		sdata_info(sdata, "associated\n");
 
@@ -2758,7 +2720,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		ieee80211_destroy_assoc_data(sdata, true);
 	}
 
-	return RX_MGMT_CFG80211_RX_ASSOC;
+	cfg80211_send_rx_assoc(sdata->dev, bss, (u8 *)mgmt, len);
 }
 
 static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
@@ -2772,7 +2734,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_channel *channel;
 	bool need_ps = false;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	sdata_assert_lock(sdata);
 
 	if ((sdata->u.mgd.associated &&
 	     ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) ||
@@ -2831,7 +2793,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 
 	ifmgd = &sdata->u.mgd;
 
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
 	if (!ether_addr_equal(mgmt->da, sdata->vif.addr))
 		return; /* ignore ProbeResp to foreign address */
@@ -2856,7 +2818,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 		ifmgd->auth_data->tries = 0;
 		ifmgd->auth_data->timeout = jiffies;
 		ifmgd->auth_data->timeout_started = true;
-		run_again(ifmgd, ifmgd->auth_data->timeout);
+		run_again(sdata, ifmgd->auth_data->timeout);
 	}
 }
 
@@ -2881,10 +2843,9 @@ static const u64 care_about_ies =
 	(1ULL << WLAN_EID_HT_CAPABILITY) |
 	(1ULL << WLAN_EID_HT_OPERATION);
 
-static enum rx_mgmt_action
-ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
-			 struct ieee80211_mgmt *mgmt, size_t len,
-			 u8 *deauth_buf, struct ieee80211_rx_status *rx_status)
+static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_mgmt *mgmt, size_t len,
+				     struct ieee80211_rx_status *rx_status)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
@@ -2899,24 +2860,25 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	u8 erp_value = 0;
 	u32 ncrc;
 	u8 *bssid;
+	u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	/* Process beacon from the current BSS */
 	baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
 	if (baselen > len)
-		return RX_MGMT_NONE;
+		return;
 
 	rcu_read_lock();
 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 	if (!chanctx_conf) {
 		rcu_read_unlock();
-		return RX_MGMT_NONE;
+		return;
 	}
 
 	if (rx_status->freq != chanctx_conf->def.chan->center_freq) {
 		rcu_read_unlock();
-		return RX_MGMT_NONE;
+		return;
 	}
 	chan = chanctx_conf->def.chan;
 	rcu_read_unlock();
@@ -2943,13 +2905,13 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		/* continue assoc process */
 		ifmgd->assoc_data->timeout = jiffies;
 		ifmgd->assoc_data->timeout_started = true;
-		run_again(ifmgd, ifmgd->assoc_data->timeout);
-		return RX_MGMT_NONE;
+		run_again(sdata, ifmgd->assoc_data->timeout);
+		return;
 	}
 
 	if (!ifmgd->associated ||
 	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
-		return RX_MGMT_NONE;
+		return;
 	bssid = ifmgd->associated->bssid;
 
 	/* Track average RSSI from the Beacon frames of the current AP */
@@ -3095,7 +3057,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
-		return RX_MGMT_NONE;
+		return;
 	ifmgd->beacon_crc = ncrc;
 	ifmgd->beacon_crc_valid = true;
 
@@ -3151,7 +3113,9 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
 				       WLAN_REASON_DEAUTH_LEAVING,
 				       true, deauth_buf);
-		return RX_MGMT_CFG80211_TX_DEAUTH;
+		cfg80211_send_deauth(sdata->dev, deauth_buf,
+				     sizeof(deauth_buf));
+		return;
 	}
 
 	if (sta && elems.opmode_notif)
@@ -3168,19 +3132,13 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 						       elems.pwr_constr_elem);
 
 	ieee80211_bss_info_change_notify(sdata, changed);
-
-	return RX_MGMT_NONE;
 }
 
 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 				  struct sk_buff *skb)
 {
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_rx_status *rx_status;
 	struct ieee80211_mgmt *mgmt;
-	struct cfg80211_bss *bss = NULL;
-	enum rx_mgmt_action rma = RX_MGMT_NONE;
-	u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN];
 	u16 fc;
 	struct ieee802_11_elems elems;
 	int ies_len;
@@ -3189,28 +3147,27 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 
 	switch (fc & IEEE80211_FCTL_STYPE) {
 	case IEEE80211_STYPE_BEACON:
-		rma = ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
-					       deauth_buf, rx_status);
+		ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len, rx_status);
 		break;
 	case IEEE80211_STYPE_PROBE_RESP:
 		ieee80211_rx_mgmt_probe_resp(sdata, skb);
 		break;
 	case IEEE80211_STYPE_AUTH:
-		rma = ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len);
+		ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_DEAUTH:
-		rma = ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
+		ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_DISASSOC:
-		rma = ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
+		ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_ASSOC_RESP:
 	case IEEE80211_STYPE_REASSOC_RESP:
-		rma = ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, &bss);
+		ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_ACTION:
 		if (mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) {
@@ -3256,34 +3213,7 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 		}
 		break;
 	}
-	mutex_unlock(&ifmgd->mtx);
-
-	switch (rma) {
-	case RX_MGMT_NONE:
-		/* no action */
-		break;
-	case RX_MGMT_CFG80211_DEAUTH:
-		cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
-		break;
-	case RX_MGMT_CFG80211_DISASSOC:
-		cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
-		break;
-	case RX_MGMT_CFG80211_RX_AUTH:
-		cfg80211_send_rx_auth(sdata->dev, (u8 *)mgmt, skb->len);
-		break;
-	case RX_MGMT_CFG80211_RX_ASSOC:
-		cfg80211_send_rx_assoc(sdata->dev, bss, (u8 *)mgmt, skb->len);
-		break;
-	case RX_MGMT_CFG80211_ASSOC_TIMEOUT:
-		cfg80211_send_assoc_timeout(sdata->dev, mgmt->bssid);
-		break;
-	case RX_MGMT_CFG80211_TX_DEAUTH:
-		cfg80211_send_deauth(sdata->dev, deauth_buf,
-				     sizeof(deauth_buf));
-		break;
-	default:
-		WARN(1, "unexpected: %d", rma);
-	}
+	sdata_unlock(sdata);
 }
 
 static void ieee80211_sta_timer(unsigned long data)
@@ -3297,20 +3227,12 @@ static void ieee80211_sta_timer(unsigned long data)
 static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
 					  u8 *bssid, u8 reason, bool tx)
 {
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
 	ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason,
 			       tx, frame_buf);
-	mutex_unlock(&ifmgd->mtx);
 
-	/*
-	 * must be outside lock due to cfg80211,
-	 * but that's not a problem.
-	 */
 	cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN);
-
-	mutex_lock(&ifmgd->mtx);
 }
 
 static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
@@ -3320,7 +3242,7 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_mgd_auth_data *auth_data = ifmgd->auth_data;
 	u32 tx_flags = 0;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (WARN_ON_ONCE(!auth_data))
 		return -EINVAL;
@@ -3393,7 +3315,7 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
 	if (tx_flags == 0) {
 		auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT;
 		ifmgd->auth_data->timeout_started = true;
-		run_again(ifmgd, auth_data->timeout);
+		run_again(sdata, auth_data->timeout);
 	} else {
 		auth_data->timeout_started = false;
 	}
@@ -3406,7 +3328,7 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data;
 	struct ieee80211_local *local = sdata->local;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	sdata_assert_lock(sdata);
 
 	assoc_data->tries++;
 	if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) {
@@ -3430,7 +3352,7 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata)
 	if (!(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)) {
 		assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT;
 		assoc_data->timeout_started = true;
-		run_again(&sdata->u.mgd, assoc_data->timeout);
+		run_again(sdata, assoc_data->timeout);
 	} else {
 		assoc_data->timeout_started = false;
 	}
@@ -3455,7 +3377,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 
 	if (ifmgd->status_received) {
 		__le16 fc = ifmgd->status_fc;
@@ -3467,7 +3389,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 			if (status_acked) {
 				ifmgd->auth_data->timeout =
 					jiffies + IEEE80211_AUTH_TIMEOUT_SHORT;
-				run_again(ifmgd, ifmgd->auth_data->timeout);
+				run_again(sdata, ifmgd->auth_data->timeout);
 			} else {
 				ifmgd->auth_data->timeout = jiffies - 1;
 			}
@@ -3478,7 +3400,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 			if (status_acked) {
 				ifmgd->assoc_data->timeout =
 					jiffies + IEEE80211_ASSOC_TIMEOUT_SHORT;
-				run_again(ifmgd, ifmgd->assoc_data->timeout);
+				run_again(sdata, ifmgd->assoc_data->timeout);
 			} else {
 				ifmgd->assoc_data->timeout = jiffies - 1;
 			}
@@ -3501,12 +3423,10 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 
 			ieee80211_destroy_auth_data(sdata, false);
 
-			mutex_unlock(&ifmgd->mtx);
 			cfg80211_send_auth_timeout(sdata->dev, bssid);
-			mutex_lock(&ifmgd->mtx);
 		}
 	} else if (ifmgd->auth_data && ifmgd->auth_data->timeout_started)
-		run_again(ifmgd, ifmgd->auth_data->timeout);
+		run_again(sdata, ifmgd->auth_data->timeout);
 
 	if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started &&
 	    time_after(jiffies, ifmgd->assoc_data->timeout)) {
@@ -3519,12 +3439,10 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 
 			ieee80211_destroy_assoc_data(sdata, false);
 
-			mutex_unlock(&ifmgd->mtx);
 			cfg80211_send_assoc_timeout(sdata->dev, bssid);
-			mutex_lock(&ifmgd->mtx);
 		}
 	} else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started)
-		run_again(ifmgd, ifmgd->assoc_data->timeout);
+		run_again(sdata, ifmgd->assoc_data->timeout);
 
 	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
 			    IEEE80211_STA_CONNECTION_POLL) &&
@@ -3558,7 +3476,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 					false);
 			}
 		} else if (time_is_after_jiffies(ifmgd->probe_timeout))
-			run_again(ifmgd, ifmgd->probe_timeout);
+			run_again(sdata, ifmgd->probe_timeout);
 		else if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) {
 			mlme_dbg(sdata,
 				 "Failed to send nullfunc to AP %pM after %dms, disconnecting\n",
@@ -3587,7 +3505,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 		}
 	}
 
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 
 static void ieee80211_sta_bcn_mon_timer(unsigned long data)
@@ -3648,9 +3566,9 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 	if (!ifmgd->associated) {
-		mutex_unlock(&ifmgd->mtx);
+		sdata_unlock(sdata);
 		return;
 	}
 
@@ -3661,10 +3579,10 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
 					      ifmgd->associated->bssid,
 					      WLAN_REASON_UNSPECIFIED,
 					      true);
-		mutex_unlock(&ifmgd->mtx);
+		sdata_unlock(sdata);
 		return;
 	}
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 #endif
 
@@ -3696,8 +3614,6 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 	ifmgd->uapsd_max_sp_len = sdata->local->hw.uapsd_max_sp_len;
 	ifmgd->p2p_noa_index = -1;
 
-	mutex_init(&ifmgd->mtx);
-
 	if (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
 		ifmgd->req_smps = IEEE80211_SMPS_AUTOMATIC;
 	else
@@ -4053,8 +3969,6 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 
 	/* try to authenticate/probe */
 
-	mutex_lock(&ifmgd->mtx);
-
 	if ((ifmgd->auth_data && !ifmgd->auth_data->done) ||
 	    ifmgd->assoc_data) {
 		err = -EBUSY;
@@ -4074,8 +3988,8 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 				       WLAN_REASON_UNSPECIFIED,
 				       false, frame_buf);
 
-		__cfg80211_send_deauth(sdata->dev, frame_buf,
-				       sizeof(frame_buf));
+		cfg80211_send_deauth(sdata->dev, frame_buf,
+				     sizeof(frame_buf));
 	}
 
 	sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid);
@@ -4092,8 +4006,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 
 	/* hold our own reference */
 	cfg80211_ref_bss(local->hw.wiphy, auth_data->bss);
-	err = 0;
-	goto out_unlock;
+	return 0;
 
  err_clear:
 	memset(ifmgd->bssid, 0, ETH_ALEN);
@@ -4101,9 +4014,6 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 	ifmgd->auth_data = NULL;
  err_free:
 	kfree(auth_data);
- out_unlock:
-	mutex_unlock(&ifmgd->mtx);
-
 	return err;
 }
 
@@ -4134,8 +4044,6 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	assoc_data->ssid_len = ssidie[1];
 	rcu_read_unlock();
 
-	mutex_lock(&ifmgd->mtx);
-
 	if (ifmgd->associated) {
 		u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
@@ -4143,8 +4051,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 				       WLAN_REASON_UNSPECIFIED,
 				       false, frame_buf);
 
-		__cfg80211_send_deauth(sdata->dev, frame_buf,
-				       sizeof(frame_buf));
+		cfg80211_send_deauth(sdata->dev, frame_buf,
+				     sizeof(frame_buf));
 	}
 
 	if (ifmgd->auth_data && !ifmgd->auth_data->done) {
@@ -4338,7 +4246,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	}
 	rcu_read_unlock();
 
-	run_again(ifmgd, assoc_data->timeout);
+	run_again(sdata, assoc_data->timeout);
 
 	if (bss->corrupt_data) {
 		char *corrupt_type = "data";
@@ -4354,17 +4262,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 			   corrupt_type);
 	}
 
-	err = 0;
-	goto out;
+	return 0;
  err_clear:
 	memset(ifmgd->bssid, 0, ETH_ALEN);
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
 	ifmgd->assoc_data = NULL;
  err_free:
 	kfree(assoc_data);
- out:
-	mutex_unlock(&ifmgd->mtx);
-
 	return err;
 }
 
@@ -4376,8 +4280,6 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 	bool tx = !req->local_state_change;
 	bool report_frame = false;
 
-	mutex_lock(&ifmgd->mtx);
-
 	sdata_info(sdata,
 		   "deauthenticating from %pM by local choice (reason=%d)\n",
 		   req->bssid, req->reason_code);
@@ -4389,7 +4291,6 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 					       req->reason_code, tx,
 					       frame_buf);
 		ieee80211_destroy_auth_data(sdata, false);
-		mutex_unlock(&ifmgd->mtx);
 
 		report_frame = true;
 		goto out;
@@ -4401,12 +4302,11 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 				       req->reason_code, tx, frame_buf);
 		report_frame = true;
 	}
-	mutex_unlock(&ifmgd->mtx);
 
  out:
 	if (report_frame)
-		__cfg80211_send_deauth(sdata->dev, frame_buf,
-				       IEEE80211_DEAUTH_FRAME_LEN);
+		cfg80211_send_deauth(sdata->dev, frame_buf,
+				     IEEE80211_DEAUTH_FRAME_LEN);
 
 	return 0;
 }
@@ -4418,18 +4318,14 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
 	u8 bssid[ETH_ALEN];
 	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
-	mutex_lock(&ifmgd->mtx);
-
 	/*
 	 * cfg80211 should catch this ... but it's racy since
 	 * we can receive a disassoc frame, process it, hand it
 	 * to cfg80211 while that's in a locked section already
 	 * trying to tell us that the user wants to disconnect.
 	 */
-	if (ifmgd->associated != req->bss) {
-		mutex_unlock(&ifmgd->mtx);
+	if (ifmgd->associated != req->bss)
 		return -ENOLINK;
-	}
 
 	sdata_info(sdata,
 		   "disassociating from %pM by local choice (reason=%d)\n",
@@ -4439,10 +4335,9 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
 	ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC,
 			       req->reason_code, !req->local_state_change,
 			       frame_buf);
-	mutex_unlock(&ifmgd->mtx);
 
-	__cfg80211_send_disassoc(sdata->dev, frame_buf,
-				 IEEE80211_DEAUTH_FRAME_LEN);
+	cfg80211_send_disassoc(sdata->dev, frame_buf,
+			       IEEE80211_DEAUTH_FRAME_LEN);
 
 	return 0;
 }
@@ -4462,13 +4357,13 @@ void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata)
 	cancel_work_sync(&ifmgd->csa_connection_drop_work);
 	cancel_work_sync(&ifmgd->chswitch_work);
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 	if (ifmgd->assoc_data)
 		ieee80211_destroy_assoc_data(sdata, false);
 	if (ifmgd->auth_data)
 		ieee80211_destroy_auth_data(sdata, false);
 	del_timer_sync(&ifmgd->timer);
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 
 void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ffdfe4b..2a8d759 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1581,9 +1581,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			if (sdata->u.mgd.dtim_period)
 				changed |= BSS_CHANGED_DTIM_PERIOD;
 
-			mutex_lock(&sdata->u.mgd.mtx);
+			sdata_lock(sdata);
 			ieee80211_bss_info_change_notify(sdata, changed);
-			mutex_unlock(&sdata->u.mgd.mtx);
+			sdata_unlock(sdata);
 			break;
 		case NL80211_IFTYPE_ADHOC:
 			changed |= BSS_CHANGED_IBSS;
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 68b40f2..80ffb01 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -25,12 +25,9 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
 	trace_cfg80211_send_rx_auth(dev);
-	wdev_lock(wdev);
 
 	nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
 	cfg80211_sme_rx_auth(dev, buf, len);
-
-	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_rx_auth);
 
@@ -46,7 +43,6 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
 	int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
 
 	trace_cfg80211_send_rx_assoc(dev, bss);
-	wdev_lock(wdev);
 
 	status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
 
@@ -59,7 +55,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
 	if (status_code != WLAN_STATUS_SUCCESS && wdev->conn &&
 	    cfg80211_sme_failed_reassoc(wdev)) {
 		cfg80211_put_bss(wiphy, bss);
-		goto out;
+		return;
 	}
 
 	nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL);
@@ -71,7 +67,7 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
 		 * sme will schedule work that does it later.
 		 */
 		cfg80211_put_bss(wiphy, bss);
-		goto out;
+		return;
 	}
 
 	if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) {
@@ -87,13 +83,11 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
 	__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
 				  status_code,
 				  status_code == WLAN_STATUS_SUCCESS, bss);
- out:
-	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_rx_assoc);
 
-void __cfg80211_send_deauth(struct net_device *dev,
-				   const u8 *buf, size_t len)
+void cfg80211_send_deauth(struct net_device *dev,
+			  const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
@@ -102,7 +96,7 @@ void __cfg80211_send_deauth(struct net_device *dev,
 	const u8 *bssid = mgmt->bssid;
 	bool was_current = false;
 
-	trace___cfg80211_send_deauth(dev);
+	trace_cfg80211_send_deauth(dev);
 	ASSERT_WDEV_LOCK(wdev);
 
 	if (wdev->current_bss &&
@@ -129,20 +123,10 @@ void __cfg80211_send_deauth(struct net_device *dev,
 					  false, NULL);
 	}
 }
-EXPORT_SYMBOL(__cfg80211_send_deauth);
-
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-
-	wdev_lock(wdev);
-	__cfg80211_send_deauth(dev, buf, len);
-	wdev_unlock(wdev);
-}
 EXPORT_SYMBOL(cfg80211_send_deauth);
 
-void __cfg80211_send_disassoc(struct net_device *dev,
-				     const u8 *buf, size_t len)
+void cfg80211_send_disassoc(struct net_device *dev,
+			    const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
@@ -152,7 +136,7 @@ void __cfg80211_send_disassoc(struct net_device *dev,
 	u16 reason_code;
 	bool from_ap;
 
-	trace___cfg80211_send_disassoc(dev);
+	trace_cfg80211_send_disassoc(dev);
 	ASSERT_WDEV_LOCK(wdev);
 
 	nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
@@ -175,16 +159,6 @@ void __cfg80211_send_disassoc(struct net_device *dev,
 	from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
 	__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
 }
-EXPORT_SYMBOL(__cfg80211_send_disassoc);
-
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-
-	wdev_lock(wdev);
-	__cfg80211_send_disassoc(dev, buf, len);
-	wdev_unlock(wdev);
-}
 EXPORT_SYMBOL(cfg80211_send_disassoc);
 
 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
@@ -194,15 +168,12 @@ void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
 	trace_cfg80211_send_auth_timeout(dev, addr);
-	wdev_lock(wdev);
 
 	nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
 	if (wdev->sme_state == CFG80211_SME_CONNECTING)
 		__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
 					  WLAN_STATUS_UNSPECIFIED_FAILURE,
 					  false, NULL);
-
-	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_auth_timeout);
 
@@ -213,15 +184,12 @@ void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
 	trace_cfg80211_send_assoc_timeout(dev, addr);
-	wdev_lock(wdev);
 
 	nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
 	if (wdev->sme_state == CFG80211_SME_CONNECTING)
 		__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
 					  WLAN_STATUS_UNSPECIFIED_FAILURE,
 					  false, NULL);
-
-	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
 
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 5755bc1..23fafea 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1911,12 +1911,12 @@ TRACE_EVENT(cfg80211_send_rx_assoc,
 		  NETDEV_PR_ARG, MAC_PR_ARG(bssid), CHAN_PR_ARG)
 );
 
-DEFINE_EVENT(netdev_evt_only, __cfg80211_send_deauth,
+DEFINE_EVENT(netdev_evt_only, cfg80211_send_deauth,
 	TP_PROTO(struct net_device *netdev),
 	TP_ARGS(netdev)
 );
 
-DEFINE_EVENT(netdev_evt_only, __cfg80211_send_disassoc,
+DEFINE_EVENT(netdev_evt_only, cfg80211_send_disassoc,
 	TP_PROTO(struct net_device *netdev),
 	TP_ARGS(netdev)
 );
-- 
cgit v0.10.2


From 1cdd59ce8dcfa850ebb8ac2ab000a2ea572d1d69 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 10 May 2013 18:58:00 +0200
Subject: cfg80211: simplify and correct P2P-Device scan check

If the driver for some reason successfully finishes
scanning while in p2p_stop_device(), cfg80211 will
still set it to aborted. Simplify this code using the
new 'notified' value and only mark it aborted in case
the driver didn't notify cfg80211 at all (in which
case we also leak the request to not crash, this is
a driver bug.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 5fc642d..afcb9ec 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -204,18 +204,15 @@ void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
 	rdev->opencount--;
 
 	if (rdev->scan_req && rdev->scan_req->wdev == wdev) {
-		bool busy = work_busy(&rdev->scan_done_wk);
-
 		/*
-		 * If the work isn't pending or running (in which case it would
-		 * be waiting for the lock we hold) the driver didn't properly
-		 * cancel the scan when the interface was removed. In this case
-		 * warn and leak the scan request object to not crash later.
+		 * If the scan request wasn't notified as done, set it
+		 * to aborted and leak it after a warning. The driver
+		 * should have notified us that it ended at the latest
+		 * during rdev_stop_p2p_device().
 		 */
-		WARN_ON(!busy);
-
-		rdev->scan_req->aborted = true;
-		___cfg80211_scan_done(rdev, !busy);
+		if (WARN_ON(!rdev->scan_req->notified))
+			rdev->scan_req->aborted = true;
+		___cfg80211_scan_done(rdev, !rdev->scan_req->notified);
 	}
 }
 
-- 
cgit v0.10.2


From db2424c58e5962a87888d25d29ceb0873eef6348 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 10 May 2013 19:07:52 +0200
Subject: regulatory: use RCU in regulatory_hint_11d()

Since it just does a quick check of the last regulatory
request, the function doesn't have to hold the reg mutex
but can use RCU instead.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index e765596..17e5ecc 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1715,20 +1715,18 @@ void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
 {
 	char alpha2[2];
 	enum environment_cap env = ENVIRON_ANY;
-	struct regulatory_request *request, *lr;
-
-	mutex_lock(&reg_mutex);
-	lr = get_last_request();
-
-	if (unlikely(!lr))
-		goto out;
+	struct regulatory_request *request = NULL, *lr;
 
 	/* IE len must be evenly divisible by 2 */
 	if (country_ie_len & 0x01)
-		goto out;
+		return;
 
 	if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN)
-		goto out;
+		return;
+
+	request = kzalloc(sizeof(*request), GFP_KERNEL);
+	if (!request)
+		return;
 
 	alpha2[0] = country_ie[0];
 	alpha2[1] = country_ie[1];
@@ -1738,6 +1736,12 @@ void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
 	else if (country_ie[2] == 'O')
 		env = ENVIRON_OUTDOOR;
 
+	rcu_read_lock();
+	lr = get_last_request();
+
+	if (unlikely(!lr))
+		goto out;
+
 	/*
 	 * We will run this only upon a successful connection on cfg80211.
 	 * We leave conflict resolution to the workqueue, where can hold
@@ -1747,10 +1751,6 @@ void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
 	    lr->wiphy_idx != WIPHY_IDX_INVALID)
 		goto out;
 
-	request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
-	if (!request)
-		goto out;
-
 	request->wiphy_idx = get_wiphy_idx(wiphy);
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
@@ -1758,8 +1758,10 @@ void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
 	request->country_ie_env = env;
 
 	queue_regulatory_request(request);
+	request = NULL;
 out:
-	mutex_unlock(&reg_mutex);
+	kfree(request);
+	rcu_read_unlock();
 }
 
 static void restore_alpha2(char *alpha2, bool reset_user)
-- 
cgit v0.10.2


From 38fd2143fa653f80729800c1d61d4207b91dca42 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 10 May 2013 19:17:17 +0200
Subject: regulatory: remove reg_mutex

The reg_mutex is similar to the ones I just removed in
cfg80211 but even less useful since it protects global
data, and we hold the RTNL in all places (except module
unload) already.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 17e5ecc..e1d6749 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -81,7 +81,10 @@ static struct regulatory_request core_request_world = {
 	.country_ie_env = ENVIRON_ANY,
 };
 
-/* Receipt of information from last regulatory request */
+/*
+ * Receipt of information from last regulatory request,
+ * protected by RTNL (and can be accessed with RCU protection)
+ */
 static struct regulatory_request __rcu *last_request =
 	(void __rcu *)&core_request_world;
 
@@ -96,39 +99,25 @@ static struct device_type reg_device_type = {
  * Central wireless core regulatory domains, we only need two,
  * the current one and a world regulatory domain in case we have no
  * information to give us an alpha2.
+ * (protected by RTNL, can be read under RCU)
  */
 const struct ieee80211_regdomain __rcu *cfg80211_regdomain;
 
 /*
- * Protects static reg.c components:
- *	- cfg80211_regdomain (if not used with RCU)
- *	- cfg80211_world_regdom
- *	- last_request (if not used with RCU)
- *	- reg_num_devs_support_basehint
- */
-static DEFINE_MUTEX(reg_mutex);
-
-/*
  * Number of devices that registered to the core
  * that support cellular base station regulatory hints
+ * (protected by RTNL)
  */
 static int reg_num_devs_support_basehint;
 
-static inline void assert_reg_lock(void)
-{
-	lockdep_assert_held(&reg_mutex);
-}
-
 static const struct ieee80211_regdomain *get_cfg80211_regdom(void)
 {
-	return rcu_dereference_protected(cfg80211_regdomain,
-					 lockdep_is_held(&reg_mutex));
+	return rtnl_dereference(cfg80211_regdomain);
 }
 
 static const struct ieee80211_regdomain *get_wiphy_regdom(struct wiphy *wiphy)
 {
-	return rcu_dereference_protected(wiphy->regd,
-					 lockdep_is_held(&reg_mutex));
+	return rtnl_dereference(wiphy->regd);
 }
 
 static void rcu_free_regdom(const struct ieee80211_regdomain *r)
@@ -140,8 +129,7 @@ static void rcu_free_regdom(const struct ieee80211_regdomain *r)
 
 static struct regulatory_request *get_last_request(void)
 {
-	return rcu_dereference_check(last_request,
-				     lockdep_is_held(&reg_mutex));
+	return rcu_dereference_rtnl(last_request);
 }
 
 /* Used to queue up regulatory hints */
@@ -200,6 +188,7 @@ static const struct ieee80211_regdomain world_regdom = {
 	}
 };
 
+/* protected by RTNL */
 static const struct ieee80211_regdomain *cfg80211_world_regdom =
 	&world_regdom;
 
@@ -215,7 +204,7 @@ static void reset_regdomains(bool full_reset,
 	const struct ieee80211_regdomain *r;
 	struct regulatory_request *lr;
 
-	assert_reg_lock();
+	ASSERT_RTNL();
 
 	r = get_cfg80211_regdom();
 
@@ -936,13 +925,7 @@ static bool reg_request_cell_base(struct regulatory_request *request)
 
 bool reg_last_request_cell_base(void)
 {
-	bool val;
-
-	mutex_lock(&reg_mutex);
-	val = reg_request_cell_base(get_last_request());
-	mutex_unlock(&reg_mutex);
-
-	return val;
+	return reg_request_cell_base(get_last_request());
 }
 
 #ifdef CONFIG_CFG80211_CERTIFICATION_ONUS
@@ -1444,8 +1427,6 @@ static void reg_set_request_processed(void)
  * what it believes should be the current regulatory domain.
  *
  * Returns one of the different reg request treatment values.
- *
- * Caller must hold &reg_mutex
  */
 static enum reg_request_treatment
 __regulatory_hint(struct wiphy *wiphy,
@@ -1622,10 +1603,8 @@ static void reg_process_pending_beacon_hints(void)
 static void reg_todo(struct work_struct *work)
 {
 	rtnl_lock();
-	mutex_lock(&reg_mutex);
 	reg_process_pending_hints();
 	reg_process_pending_beacon_hints();
-	mutex_unlock(&reg_mutex);
 	rtnl_unlock();
 }
 
@@ -1851,8 +1830,6 @@ static void restore_regulatory_settings(bool reset_user)
 
 	ASSERT_RTNL();
 
-	mutex_lock(&reg_mutex);
-
 	reset_regdomains(true, &world_regdom);
 	restore_alpha2(alpha2, reset_user);
 
@@ -1906,8 +1883,6 @@ static void restore_regulatory_settings(bool reset_user)
 	list_splice_tail_init(&tmp_reg_req_list, &reg_requests_list);
 	spin_unlock(&reg_requests_lock);
 
-	mutex_unlock(&reg_mutex);
-
 	REG_DBG_PRINT("Kicking the queue\n");
 
 	schedule_work(&reg_work);
@@ -2222,7 +2197,6 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 	struct regulatory_request *lr;
 	int r;
 
-	mutex_lock(&reg_mutex);
 	lr = get_last_request();
 
 	/* Note that this doesn't update the wiphys, this is done below */
@@ -2232,14 +2206,12 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 			reg_set_request_processed();
 
 		kfree(rd);
-		goto out;
+		return r;
 	}
 
 	/* This would make this whole thing pointless */
-	if (WARN_ON(!lr->intersect && rd != get_cfg80211_regdom())) {
-		r = -EINVAL;
-		goto out;
-	}
+	if (WARN_ON(!lr->intersect && rd != get_cfg80211_regdom()))
+		return -EINVAL;
 
 	/* update all wiphys now with the new established regulatory domain */
 	update_all_wiphy_regulatory(lr->initiator);
@@ -2250,10 +2222,7 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 
 	reg_set_request_processed();
 
- out:
-	mutex_unlock(&reg_mutex);
-
-	return r;
+	return 0;
 }
 
 int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)
@@ -2278,14 +2247,10 @@ int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)
 
 void wiphy_regulatory_register(struct wiphy *wiphy)
 {
-	mutex_lock(&reg_mutex);
-
 	if (!reg_dev_ignore_cell_hint(wiphy))
 		reg_num_devs_support_basehint++;
 
 	wiphy_update_regulatory(wiphy, NL80211_REGDOM_SET_BY_CORE);
-
-	mutex_unlock(&reg_mutex);
 }
 
 void wiphy_regulatory_deregister(struct wiphy *wiphy)
@@ -2293,7 +2258,6 @@ void wiphy_regulatory_deregister(struct wiphy *wiphy)
 	struct wiphy *request_wiphy = NULL;
 	struct regulatory_request *lr;
 
-	mutex_lock(&reg_mutex);
 	lr = get_last_request();
 
 	if (!reg_dev_ignore_cell_hint(wiphy))
@@ -2306,12 +2270,10 @@ void wiphy_regulatory_deregister(struct wiphy *wiphy)
 		request_wiphy = wiphy_idx_to_wiphy(lr->wiphy_idx);
 
 	if (!request_wiphy || request_wiphy != wiphy)
-		goto out;
+		return;
 
 	lr->wiphy_idx = WIPHY_IDX_INVALID;
 	lr->country_ie_env = ENVIRON_ANY;
-out:
-	mutex_unlock(&reg_mutex);
 }
 
 static void reg_timeout_work(struct work_struct *work)
@@ -2375,9 +2337,9 @@ void regulatory_exit(void)
 	cancel_delayed_work_sync(&reg_timeout);
 
 	/* Lock to suppress warnings */
-	mutex_lock(&reg_mutex);
+	rtnl_lock();
 	reset_regdomains(true, NULL);
-	mutex_unlock(&reg_mutex);
+	rtnl_unlock();
 
 	dev_set_uevent_suppress(&reg_pdev->dev, true);
 
-- 
cgit v0.10.2


From 91bf9b26fc95c505846bc2f744a73b51f2aaee1d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 15 May 2013 17:44:01 +0200
Subject: cfg80211: remove some locked wrappers from mlme API

By making all the API functions require wdev locking we
can clean up the API a bit, getting rid of the locking
version of each function. This also decreases the size
of cfg80211 by a small amount.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/core.h b/net/wireless/core.h
index d21a0fc..c8f87df 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -282,38 +282,21 @@ int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
 		     struct net_device *dev);
 
 /* MLME */
-int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
-			 struct net_device *dev,
-			 struct ieee80211_channel *chan,
-			 enum nl80211_auth_type auth_type,
-			 const u8 *bssid,
-			 const u8 *ssid, int ssid_len,
-			 const u8 *ie, int ie_len,
-			 const u8 *key, int key_len, int key_idx,
-			 const u8 *sae_data, int sae_data_len);
 int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
-		       struct net_device *dev, struct ieee80211_channel *chan,
-		       enum nl80211_auth_type auth_type, const u8 *bssid,
+		       struct net_device *dev,
+		       struct ieee80211_channel *chan,
+		       enum nl80211_auth_type auth_type,
+		       const u8 *bssid,
 		       const u8 *ssid, int ssid_len,
 		       const u8 *ie, int ie_len,
 		       const u8 *key, int key_len, int key_idx,
 		       const u8 *sae_data, int sae_data_len);
-int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
-			  struct net_device *dev,
-			  struct ieee80211_channel *chan,
-			  const u8 *bssid,
-			  const u8 *ssid, int ssid_len,
-			  struct cfg80211_assoc_request *req);
 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 			struct net_device *dev,
 			struct ieee80211_channel *chan,
 			const u8 *bssid,
 			const u8 *ssid, int ssid_len,
 			struct cfg80211_assoc_request *req);
-int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
-			   struct net_device *dev, const u8 *bssid,
-			   const u8 *ie, int ie_len, u16 reason,
-			   bool local_state_change);
 int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 			 struct net_device *dev, const u8 *bssid,
 			 const u8 *ie, int ie_len, u16 reason,
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 80ffb01..7bde5d9 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -221,15 +221,15 @@ void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
 EXPORT_SYMBOL(cfg80211_michael_mic_failure);
 
 /* some MLME handling for userspace SME */
-int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
-			 struct net_device *dev,
-			 struct ieee80211_channel *chan,
-			 enum nl80211_auth_type auth_type,
-			 const u8 *bssid,
-			 const u8 *ssid, int ssid_len,
-			 const u8 *ie, int ie_len,
-			 const u8 *key, int key_len, int key_idx,
-			 const u8 *sae_data, int sae_data_len)
+int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       struct ieee80211_channel *chan,
+		       enum nl80211_auth_type auth_type,
+		       const u8 *bssid,
+		       const u8 *ssid, int ssid_len,
+		       const u8 *ie, int ie_len,
+		       const u8 *key, int key_len, int key_idx,
+		       const u8 *sae_data, int sae_data_len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_auth_request req = {
@@ -271,28 +271,6 @@ out:
 	return err;
 }
 
-int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
-		       struct net_device *dev, struct ieee80211_channel *chan,
-		       enum nl80211_auth_type auth_type, const u8 *bssid,
-		       const u8 *ssid, int ssid_len,
-		       const u8 *ie, int ie_len,
-		       const u8 *key, int key_len, int key_idx,
-		       const u8 *sae_data, int sae_data_len)
-{
-	int err;
-
-	ASSERT_RTNL();
-
-	wdev_lock(dev->ieee80211_ptr);
-	err = __cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
-				   ssid, ssid_len, ie, ie_len,
-				   key, key_len, key_idx,
-				   sae_data, sae_data_len);
-	wdev_unlock(dev->ieee80211_ptr);
-
-	return err;
-}
-
 /*  Do a logical ht_capa &= ht_capa_mask.  */
 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
 			       const struct ieee80211_ht_cap *ht_capa_mask)
@@ -327,12 +305,12 @@ void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
 		p1[i] &= p2[i];
 }
 
-int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
-			  struct net_device *dev,
-			  struct ieee80211_channel *chan,
-			  const u8 *bssid,
-			  const u8 *ssid, int ssid_len,
-			  struct cfg80211_assoc_request *req)
+int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+			struct net_device *dev,
+			struct ieee80211_channel *chan,
+			const u8 *bssid,
+			const u8 *ssid, int ssid_len,
+			struct cfg80211_assoc_request *req)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int err;
@@ -382,30 +360,10 @@ out:
 	return err;
 }
 
-int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
-			struct net_device *dev,
-			struct ieee80211_channel *chan,
-			const u8 *bssid,
-			const u8 *ssid, int ssid_len,
-			struct cfg80211_assoc_request *req)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	int err;
-
-	ASSERT_RTNL();
-
-	wdev_lock(wdev);
-	err = __cfg80211_mlme_assoc(rdev, dev, chan, bssid,
-				    ssid, ssid_len, req);
-	wdev_unlock(wdev);
-
-	return err;
-}
-
-int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
-			   struct net_device *dev, const u8 *bssid,
-			   const u8 *ie, int ie_len, u16 reason,
-			   bool local_state_change)
+int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev, const u8 *bssid,
+			 const u8 *ie, int ie_len, u16 reason,
+			 bool local_state_change)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_deauth_request req = {
@@ -425,26 +383,10 @@ int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 	return rdev_deauth(rdev, dev, &req);
 }
 
-int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
-			 struct net_device *dev, const u8 *bssid,
-			 const u8 *ie, int ie_len, u16 reason,
-			 bool local_state_change)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	int err;
-
-	wdev_lock(wdev);
-	err = __cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason,
-				     local_state_change);
-	wdev_unlock(wdev);
-
-	return err;
-}
-
-static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
-				    struct net_device *dev, const u8 *bssid,
-				    const u8 *ie, int ie_len, u16 reason,
-				    bool local_state_change)
+int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+			   struct net_device *dev, const u8 *bssid,
+			   const u8 *ie, int ie_len, u16 reason,
+			   bool local_state_change)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_disassoc_request req = {
@@ -470,22 +412,6 @@ static int __cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 	return rdev_disassoc(rdev, dev, &req);
 }
 
-int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
-			   struct net_device *dev, const u8 *bssid,
-			   const u8 *ie, int ie_len, u16 reason,
-			   bool local_state_change)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	int err;
-
-	wdev_lock(wdev);
-	err = __cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason,
-				       local_state_change);
-	wdev_unlock(wdev);
-
-	return err;
-}
-
 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 			struct net_device *dev)
 {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 74cdb1a..49c2f2f5 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5904,10 +5904,13 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
 	if (local_state_change)
 		return 0;
 
-	return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
-				  ssid, ssid_len, ie, ie_len,
-				  key.p.key, key.p.key_len, key.idx,
-				  sae_data, sae_data_len);
+	wdev_lock(dev->ieee80211_ptr);
+	err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
+				 ssid, ssid_len, ie, ie_len,
+				 key.p.key, key.p.key_len, key.idx,
+				 sae_data, sae_data_len);
+	wdev_unlock(dev->ieee80211_ptr);
+	return err;
 }
 
 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
@@ -6074,9 +6077,12 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
-	if (!err)
+	if (!err) {
+		wdev_lock(dev->ieee80211_ptr);
 		err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
 					  ssid, ssid_len, &req);
+		wdev_unlock(dev->ieee80211_ptr);
+	}
 
 	return err;
 }
@@ -6086,7 +6092,7 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct net_device *dev = info->user_ptr[1];
 	const u8 *ie = NULL, *bssid;
-	int ie_len = 0;
+	int ie_len = 0, err;
 	u16 reason_code;
 	bool local_state_change;
 
@@ -6121,8 +6127,11 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
 
 	local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
 
-	return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
-				    local_state_change);
+	wdev_lock(dev->ieee80211_ptr);
+	err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
+				   local_state_change);
+	wdev_unlock(dev->ieee80211_ptr);
+	return err;
 }
 
 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
@@ -6130,7 +6139,7 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct net_device *dev = info->user_ptr[1];
 	const u8 *ie = NULL, *bssid;
-	int ie_len = 0;
+	int ie_len = 0, err;
 	u16 reason_code;
 	bool local_state_change;
 
@@ -6165,8 +6174,11 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
 
 	local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
 
-	return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
-				      local_state_change);
+	wdev_lock(dev->ieee80211_ptr);
+	err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
+				     local_state_change);
+	wdev_unlock(dev->ieee80211_ptr);
+	return err;
 }
 
 static bool
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 4dbf314..31d67ad 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -169,13 +169,13 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev)
 	case CFG80211_CONN_AUTHENTICATE_NEXT:
 		BUG_ON(!rdev->ops->auth);
 		wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
-		return __cfg80211_mlme_auth(rdev, wdev->netdev,
-					    params->channel, params->auth_type,
-					    params->bssid,
-					    params->ssid, params->ssid_len,
-					    NULL, 0,
-					    params->key, params->key_len,
-					    params->key_idx, NULL, 0);
+		return cfg80211_mlme_auth(rdev, wdev->netdev,
+					  params->channel, params->auth_type,
+					  params->bssid,
+					  params->ssid, params->ssid_len,
+					  NULL, 0,
+					  params->key, params->key_len,
+					  params->key_idx, NULL, 0);
 	case CFG80211_CONN_ASSOCIATE_NEXT:
 		BUG_ON(!rdev->ops->assoc);
 		wdev->conn->state = CFG80211_CONN_ASSOCIATING;
@@ -191,19 +191,19 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev)
 		req.vht_capa = params->vht_capa;
 		req.vht_capa_mask = params->vht_capa_mask;
 
-		err = __cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel,
-					    params->bssid, params->ssid,
-					    params->ssid_len, &req);
+		err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel,
+					  params->bssid, params->ssid,
+					  params->ssid_len, &req);
 		if (err)
-			__cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
-					       NULL, 0,
-					       WLAN_REASON_DEAUTH_LEAVING,
-					       false);
+			cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
+					     NULL, 0,
+					     WLAN_REASON_DEAUTH_LEAVING,
+					     false);
 		return err;
 	case CFG80211_CONN_DEAUTH_ASSOC_FAIL:
-		__cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
-				       NULL, 0,
-				       WLAN_REASON_DEAUTH_LEAVING, false);
+		cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
+				     NULL, 0,
+				     WLAN_REASON_DEAUTH_LEAVING, false);
 		/* return an error so that we call __cfg80211_connect_result() */
 		return -EINVAL;
 	default:
@@ -961,7 +961,7 @@ int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 		}
 
 		/* wdev->conn->params.bssid must be set if > SCANNING */
-		err = __cfg80211_mlme_deauth(rdev, dev,
+		err = cfg80211_mlme_deauth(rdev, dev,
 					     wdev->conn->params.bssid,
 					     NULL, 0, reason, false);
 		if (err)
@@ -1018,6 +1018,6 @@ void cfg80211_sme_disassoc(struct net_device *dev,
 
 	memcpy(bssid, bss->pub.bssid, ETH_ALEN);
 
-	__cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
-			       WLAN_REASON_DEAUTH_LEAVING, false);
+	cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
+			     WLAN_REASON_DEAUTH_LEAVING, false);
 }
-- 
cgit v0.10.2


From 83739b03de97049181d711c95200b94a14d3f693 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 15 May 2013 17:44:01 +0200
Subject: cfg80211: remove some locked wrappers from sme API

By making all the API functions require wdev locking we
can clean up the API a bit, getting rid of the locking
version of each function. This also decreases the size
of cfg80211 by a small amount.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/core.c b/net/wireless/core.c
index afcb9ec..ee42287 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -755,8 +755,8 @@ void cfg80211_leave(struct cfg80211_registered_device *rdev,
 		wdev->wext.ie_len = 0;
 		wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 #endif
-		__cfg80211_disconnect(rdev, dev,
-				      WLAN_REASON_DEAUTH_LEAVING, true);
+		cfg80211_disconnect(rdev, dev,
+				    WLAN_REASON_DEAUTH_LEAVING, true);
 		wdev_unlock(wdev);
 		break;
 	case NL80211_IFTYPE_MESH_POINT:
diff --git a/net/wireless/core.h b/net/wireless/core.h
index c8f87df..b4b4a56 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -328,18 +328,11 @@ void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
 				const struct ieee80211_vht_cap *vht_capa_mask);
 
 /* SME */
-int __cfg80211_connect(struct cfg80211_registered_device *rdev,
-		       struct net_device *dev,
-		       struct cfg80211_connect_params *connect,
-		       struct cfg80211_cached_keys *connkeys,
-		       const u8 *prev_bssid);
 int cfg80211_connect(struct cfg80211_registered_device *rdev,
 		     struct net_device *dev,
 		     struct cfg80211_connect_params *connect,
-		     struct cfg80211_cached_keys *connkeys);
-int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
-			  struct net_device *dev, u16 reason,
-			  bool wextev);
+		     struct cfg80211_cached_keys *connkeys,
+		     const u8 *prev_bssid);
 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 			struct net_device *dev, u16 reason,
 			bool wextev);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 49c2f2f5..a09f36b 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6683,7 +6683,9 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
 		       sizeof(connect.vht_capa));
 	}
 
-	err = cfg80211_connect(rdev, dev, &connect, connkeys);
+	wdev_lock(dev->ieee80211_ptr);
+	err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
+	wdev_unlock(dev->ieee80211_ptr);
 	if (err)
 		kfree(connkeys);
 	return err;
@@ -6694,6 +6696,7 @@ static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
 	struct net_device *dev = info->user_ptr[1];
 	u16 reason;
+	int ret;
 
 	if (!info->attrs[NL80211_ATTR_REASON_CODE])
 		reason = WLAN_REASON_DEAUTH_LEAVING;
@@ -6707,7 +6710,10 @@ static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
 	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
 		return -EOPNOTSUPP;
 
-	return cfg80211_disconnect(rdev, dev, reason, true);
+	wdev_lock(dev->ieee80211_ptr);
+	ret = cfg80211_disconnect(rdev, dev, reason, true);
+	wdev_unlock(dev->ieee80211_ptr);
+	return ret;
 }
 
 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 31d67ad..81be95f 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -760,11 +760,11 @@ void cfg80211_disconnected(struct net_device *dev, u16 reason,
 }
 EXPORT_SYMBOL(cfg80211_disconnected);
 
-int __cfg80211_connect(struct cfg80211_registered_device *rdev,
-		       struct net_device *dev,
-		       struct cfg80211_connect_params *connect,
-		       struct cfg80211_cached_keys *connkeys,
-		       const u8 *prev_bssid)
+int cfg80211_connect(struct cfg80211_registered_device *rdev,
+		     struct net_device *dev,
+		     struct cfg80211_connect_params *connect,
+		     struct cfg80211_cached_keys *connkeys,
+		     const u8 *prev_bssid)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_bss *bss = NULL;
@@ -911,22 +911,8 @@ int __cfg80211_connect(struct cfg80211_registered_device *rdev,
 	}
 }
 
-int cfg80211_connect(struct cfg80211_registered_device *rdev,
-		     struct net_device *dev,
-		     struct cfg80211_connect_params *connect,
-		     struct cfg80211_cached_keys *connkeys)
-{
-	int err;
-
-	wdev_lock(dev->ieee80211_ptr);
-	err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL);
-	wdev_unlock(dev->ieee80211_ptr);
-
-	return err;
-}
-
-int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
-			  struct net_device *dev, u16 reason, bool wextev)
+int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, u16 reason, bool wextev)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int err;
@@ -983,19 +969,6 @@ int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 	return 0;
 }
 
-int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
-			struct net_device *dev,
-			u16 reason, bool wextev)
-{
-	int err;
-
-	wdev_lock(dev->ieee80211_ptr);
-	err = __cfg80211_disconnect(rdev, dev, reason, wextev);
-	wdev_unlock(dev->ieee80211_ptr);
-
-	return err;
-}
-
 void cfg80211_sme_disassoc(struct net_device *dev,
 			   struct cfg80211_internal_bss *bss)
 {
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 5017242..74458b7 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -858,8 +858,10 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 			break;
 		case NL80211_IFTYPE_STATION:
 		case NL80211_IFTYPE_P2P_CLIENT:
+			wdev_lock(dev->ieee80211_ptr);
 			cfg80211_disconnect(rdev, dev,
 					    WLAN_REASON_DEAUTH_LEAVING, true);
+			wdev_unlock(dev->ieee80211_ptr);
 			break;
 		case NL80211_IFTYPE_MESH_POINT:
 			/* mesh should be handled? */
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index aeefd68..a53f840 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -54,8 +54,8 @@ int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
 	if (wdev->wext.prev_bssid_valid)
 		prev_bssid = wdev->wext.prev_bssid;
 
-	err = __cfg80211_connect(rdev, wdev->netdev,
-				 &wdev->wext.connect, ck, prev_bssid);
+	err = cfg80211_connect(rdev, wdev->netdev,
+			       &wdev->wext.connect, ck, prev_bssid);
 	if (err)
 		kfree(ck);
 
@@ -100,8 +100,8 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
 		/* if SSID set, we'll try right again, avoid event */
 		if (wdev->wext.connect.ssid_len)
 			event = false;
-		err = __cfg80211_disconnect(rdev, dev,
-					    WLAN_REASON_DEAUTH_LEAVING, event);
+		err = cfg80211_disconnect(rdev, dev,
+					  WLAN_REASON_DEAUTH_LEAVING, event);
 		if (err)
 			goto out;
 	}
@@ -199,8 +199,8 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
 		/* if SSID set now, we'll try to connect, avoid event */
 		if (len)
 			event = false;
-		err = __cfg80211_disconnect(rdev, dev,
-					    WLAN_REASON_DEAUTH_LEAVING, event);
+		err = cfg80211_disconnect(rdev, dev,
+					  WLAN_REASON_DEAUTH_LEAVING, event);
 		if (err)
 			goto out;
 	}
@@ -288,8 +288,8 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
 		    ether_addr_equal(bssid, wdev->wext.connect.bssid))
 			goto out;
 
-		err = __cfg80211_disconnect(rdev, dev,
-					    WLAN_REASON_DEAUTH_LEAVING, false);
+		err = cfg80211_disconnect(rdev, dev,
+					  WLAN_REASON_DEAUTH_LEAVING, false);
 		if (err)
 			goto out;
 	}
@@ -365,8 +365,8 @@ int cfg80211_wext_siwgenie(struct net_device *dev,
 	wdev->wext.ie_len = ie_len;
 
 	if (wdev->sme_state != CFG80211_SME_IDLE) {
-		err = __cfg80211_disconnect(rdev, dev,
-					    WLAN_REASON_DEAUTH_LEAVING, false);
+		err = cfg80211_disconnect(rdev, dev,
+					  WLAN_REASON_DEAUTH_LEAVING, false);
 		if (err)
 			goto out;
 	}
@@ -402,8 +402,7 @@ int cfg80211_wext_siwmlme(struct net_device *dev,
 	switch (mlme->cmd) {
 	case IW_MLME_DEAUTH:
 	case IW_MLME_DISASSOC:
-		err = __cfg80211_disconnect(rdev, dev, mlme->reason_code,
-					    true);
+		err = cfg80211_disconnect(rdev, dev, mlme->reason_code, true);
 		break;
 	default:
 		err = -EOPNOTSUPP;
-- 
cgit v0.10.2


From 2e460fc07ef0ebadfb593b564a8c7fa6559ac3d7 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Thu, 23 May 2013 11:11:22 +0000
Subject: tg3: Split APE driver state change out of boot reset signature update

Unlike the boot signature that needs to be set before every reset, the
ape state only needs to be updated to tell the firmware that the driver
is now taking/releasing control of the hardware. Move the calls to
tg3_ape_driver_state_change() to better, more appropriate places.

Also, the firmware does not distinguish between SUSPEND and START states
anymore. Remove the SUSPEND case in the switch.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index c15a92d..ae808b0 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -965,9 +965,6 @@ static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
 
 		event = APE_EVENT_STATUS_STATE_UNLOAD;
 		break;
-	case RESET_KIND_SUSPEND:
-		event = APE_EVENT_STATUS_STATE_SUSPEND;
-		break;
 	default:
 		return;
 	}
@@ -1739,10 +1736,6 @@ static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
 			break;
 		}
 	}
-
-	if (kind == RESET_KIND_INIT ||
-	    kind == RESET_KIND_SUSPEND)
-		tg3_ape_driver_state_change(tp, kind);
 }
 
 /* tp->lock is held. */
@@ -1764,9 +1757,6 @@ static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
 			break;
 		}
 	}
-
-	if (kind == RESET_KIND_SHUTDOWN)
-		tg3_ape_driver_state_change(tp, kind);
 }
 
 /* tp->lock is held. */
@@ -4206,6 +4196,8 @@ static int tg3_power_down_prepare(struct tg3 *tp)
 
 	tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
 
+	tg3_ape_driver_state_change(tp, RESET_KIND_SHUTDOWN);
+
 	return 0;
 }
 
@@ -11244,6 +11236,9 @@ static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
 
 	tg3_full_lock(tp, 0);
 
+	if (init)
+		tg3_ape_driver_state_change(tp, RESET_KIND_INIT);
+
 	err = tg3_init_hw(tp, reset_phy);
 	if (err) {
 		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
@@ -13360,11 +13355,13 @@ static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
 	struct tg3 *tp = netdev_priv(dev);
 	bool doextlpbk = etest->flags & ETH_TEST_FL_EXTERNAL_LB;
 
-	if ((tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) &&
-	    tg3_power_up(tp)) {
-		etest->flags |= ETH_TEST_FL_FAILED;
-		memset(data, 1, sizeof(u64) * TG3_NUM_TEST);
-		return;
+	if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
+		if (tg3_power_up(tp)) {
+			etest->flags |= ETH_TEST_FL_FAILED;
+			memset(data, 1, sizeof(u64) * TG3_NUM_TEST);
+			return;
+		}
+		tg3_ape_driver_state_change(tp, RESET_KIND_INIT);
 	}
 
 	memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
@@ -17670,6 +17667,8 @@ static int tg3_resume(struct device *device)
 
 	tg3_full_lock(tp, 0);
 
+	tg3_ape_driver_state_change(tp, RESET_KIND_INIT);
+
 	tg3_flag_set(tp, INIT_COMPLETE);
 	err = tg3_restart_hw(tp,
 			     !(tp->phy_flags & TG3_PHYFLG_KEEP_LINK_ON_PWRDN));
@@ -17804,6 +17803,7 @@ static void tg3_io_resume(struct pci_dev *pdev)
 		goto done;
 
 	tg3_full_lock(tp, 0);
+	tg3_ape_driver_state_change(tp, RESET_KIND_INIT);
 	tg3_flag_set(tp, INIT_COMPLETE);
 	err = tg3_restart_hw(tp, true);
 	if (err) {
-- 
cgit v0.10.2


From 32ba19efc08a4bd63590310f05da5ce4d8773508 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Thu, 23 May 2013 11:11:23 +0000
Subject: tg3: Simplify ring control block setup

The current code calls tg3_set_bdinfo() separately on napi0, followed by
a loop that does napi1+. Simplify it by setting bdinfo in the loop for
all napi contexts.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index ae808b0..bb1d34c 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -9240,6 +9240,48 @@ static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
 }
 
 /* tp->lock is held. */
+static void tg3_tx_rcbs_init(struct tg3 *tp)
+{
+	int i = 0;
+	u32 txrcb = NIC_SRAM_SEND_RCB;
+
+	if (tg3_flag(tp, ENABLE_TSS))
+		i++;
+
+	for (; i < tp->irq_max; i++, txrcb += TG3_BDINFO_SIZE) {
+		struct tg3_napi *tnapi = &tp->napi[i];
+
+		if (!tnapi->tx_ring)
+			continue;
+
+		tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
+			       (TG3_TX_RING_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT),
+			       NIC_SRAM_TX_BUFFER_DESC);
+	}
+}
+
+/* tp->lock is held. */
+static void tg3_rx_ret_rcbs_init(struct tg3 *tp)
+{
+	int i = 0;
+	u32 rxrcb = NIC_SRAM_RCV_RET_RCB;
+
+	if (tg3_flag(tp, ENABLE_RSS))
+		i++;
+
+	for (; i < tp->irq_max; i++, rxrcb += TG3_BDINFO_SIZE) {
+		struct tg3_napi *tnapi = &tp->napi[i];
+
+		if (!tnapi->rx_rcb)
+			continue;
+
+		tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
+			       (tp->rx_ret_ring_mask + 1) <<
+				BDINFO_FLAGS_MAXLEN_SHIFT, 0);
+	}
+}
+
+/* tp->lock is held. */
 static void tg3_rings_reset(struct tg3 *tp)
 {
 	int i;
@@ -9315,9 +9357,6 @@ static void tg3_rings_reset(struct tg3 *tp)
 			tw32_tx_mbox(mbox + i * 8, 0);
 	}
 
-	txrcb = NIC_SRAM_SEND_RCB;
-	rxrcb = NIC_SRAM_RCV_RET_RCB;
-
 	/* Clear status block in ram. */
 	memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
 
@@ -9327,46 +9366,20 @@ static void tg3_rings_reset(struct tg3 *tp)
 	tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
 	     ((u64) tnapi->status_mapping & 0xffffffff));
 
-	if (tnapi->tx_ring) {
-		tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
-			       (TG3_TX_RING_SIZE <<
-				BDINFO_FLAGS_MAXLEN_SHIFT),
-			       NIC_SRAM_TX_BUFFER_DESC);
-		txrcb += TG3_BDINFO_SIZE;
-	}
-
-	if (tnapi->rx_rcb) {
-		tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
-			       (tp->rx_ret_ring_mask + 1) <<
-				BDINFO_FLAGS_MAXLEN_SHIFT, 0);
-		rxrcb += TG3_BDINFO_SIZE;
-	}
-
 	stblk = HOSTCC_STATBLCK_RING1;
 
 	for (i = 1, tnapi++; i < tp->irq_cnt; i++, tnapi++) {
 		u64 mapping = (u64)tnapi->status_mapping;
 		tw32(stblk + TG3_64BIT_REG_HIGH, mapping >> 32);
 		tw32(stblk + TG3_64BIT_REG_LOW, mapping & 0xffffffff);
+		stblk += 8;
 
 		/* Clear status block in ram. */
 		memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
-
-		if (tnapi->tx_ring) {
-			tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
-				       (TG3_TX_RING_SIZE <<
-					BDINFO_FLAGS_MAXLEN_SHIFT),
-				       NIC_SRAM_TX_BUFFER_DESC);
-			txrcb += TG3_BDINFO_SIZE;
-		}
-
-		tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
-			       ((tp->rx_ret_ring_mask + 1) <<
-				BDINFO_FLAGS_MAXLEN_SHIFT), 0);
-
-		stblk += 8;
-		rxrcb += TG3_BDINFO_SIZE;
 	}
+
+	tg3_tx_rcbs_init(tp);
+	tg3_rx_ret_rcbs_init(tp);
 }
 
 static void tg3_setup_rxbd_thresholds(struct tg3 *tp)
-- 
cgit v0.10.2


From 328947ff2609989fefe6dfd1143cc0787a5ec862 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Thu, 23 May 2013 11:11:24 +0000
Subject: tg3: Make tg3_rings_reset() more concise

Simplify the rings reset function and increase readability by moving the
control block disable code into separate functions.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index bb1d34c..693c5f2 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -9240,6 +9240,28 @@ static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
 }
 
 /* tp->lock is held. */
+static void tg3_tx_rcbs_disable(struct tg3 *tp)
+{
+	u32 txrcb, limit;
+
+	/* Disable all transmit rings but the first. */
+	if (!tg3_flag(tp, 5705_PLUS))
+		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
+	else if (tg3_flag(tp, 5717_PLUS))
+		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 4;
+	else if (tg3_flag(tp, 57765_CLASS) ||
+		 tg3_asic_rev(tp) == ASIC_REV_5762)
+		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
+	else
+		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
+
+	for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
+	     txrcb < limit; txrcb += TG3_BDINFO_SIZE)
+		tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS,
+			      BDINFO_FLAGS_DISABLED);
+}
+
+/* tp->lock is held. */
 static void tg3_tx_rcbs_init(struct tg3 *tp)
 {
 	int i = 0;
@@ -9261,6 +9283,29 @@ static void tg3_tx_rcbs_init(struct tg3 *tp)
 }
 
 /* tp->lock is held. */
+static void tg3_rx_ret_rcbs_disable(struct tg3 *tp)
+{
+	u32 rxrcb, limit;
+
+	/* Disable all receive return rings but the first. */
+	if (tg3_flag(tp, 5717_PLUS))
+		limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17;
+	else if (!tg3_flag(tp, 5705_PLUS))
+		limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16;
+	else if (tg3_asic_rev(tp) == ASIC_REV_5755 ||
+		 tg3_asic_rev(tp) == ASIC_REV_5762 ||
+		 tg3_flag(tp, 57765_CLASS))
+		limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4;
+	else
+		limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
+
+	for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
+	     rxrcb < limit; rxrcb += TG3_BDINFO_SIZE)
+		tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS,
+			      BDINFO_FLAGS_DISABLED);
+}
+
+/* tp->lock is held. */
 static void tg3_rx_ret_rcbs_init(struct tg3 *tp)
 {
 	int i = 0;
@@ -9285,42 +9330,12 @@ static void tg3_rx_ret_rcbs_init(struct tg3 *tp)
 static void tg3_rings_reset(struct tg3 *tp)
 {
 	int i;
-	u32 stblk, txrcb, rxrcb, limit;
+	u32 stblk;
 	struct tg3_napi *tnapi = &tp->napi[0];
 
-	/* Disable all transmit rings but the first. */
-	if (!tg3_flag(tp, 5705_PLUS))
-		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
-	else if (tg3_flag(tp, 5717_PLUS))
-		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 4;
-	else if (tg3_flag(tp, 57765_CLASS) ||
-		 tg3_asic_rev(tp) == ASIC_REV_5762)
-		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
-	else
-		limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
-
-	for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
-	     txrcb < limit; txrcb += TG3_BDINFO_SIZE)
-		tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS,
-			      BDINFO_FLAGS_DISABLED);
-
-
-	/* Disable all receive return rings but the first. */
-	if (tg3_flag(tp, 5717_PLUS))
-		limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17;
-	else if (!tg3_flag(tp, 5705_PLUS))
-		limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16;
-	else if (tg3_asic_rev(tp) == ASIC_REV_5755 ||
-		 tg3_asic_rev(tp) == ASIC_REV_5762 ||
-		 tg3_flag(tp, 57765_CLASS))
-		limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4;
-	else
-		limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
+	tg3_tx_rcbs_disable(tp);
 
-	for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
-	     rxrcb < limit; rxrcb += TG3_BDINFO_SIZE)
-		tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS,
-			      BDINFO_FLAGS_DISABLED);
+	tg3_rx_ret_rcbs_disable(tp);
 
 	/* Disable interrupts */
 	tw32_mailbox_f(tp->napi[0].int_mbox, 1);
-- 
cgit v0.10.2


From 4a5f46f2fef13ecfc1f396d0caf75031a7a15422 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Thu, 23 May 2013 11:11:25 +0000
Subject: tg3: Use descriptive label names in tg3_start

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 693c5f2..6ab02d6 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -11244,7 +11244,7 @@ static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
 	 */
 	err = tg3_alloc_consistent(tp);
 	if (err)
-		goto err_out1;
+		goto out_ints_fini;
 
 	tg3_napi_init(tp);
 
@@ -11258,7 +11258,7 @@ static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
 				tnapi = &tp->napi[i];
 				free_irq(tnapi->irq_vec, tnapi);
 			}
-			goto err_out2;
+			goto out_napi_fini;
 		}
 	}
 
@@ -11276,7 +11276,7 @@ static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
 	tg3_full_unlock(tp);
 
 	if (err)
-		goto err_out3;
+		goto out_free_irq;
 
 	if (test_irq && tg3_flag(tp, USING_MSI)) {
 		err = tg3_test_msi(tp);
@@ -11287,7 +11287,7 @@ static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
 			tg3_free_rings(tp);
 			tg3_full_unlock(tp);
 
-			goto err_out2;
+			goto out_napi_fini;
 		}
 
 		if (!tg3_flag(tp, 57765_PLUS) && tg3_flag(tp, USING_MSI)) {
@@ -11327,18 +11327,18 @@ static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
 
 	return 0;
 
-err_out3:
+out_free_irq:
 	for (i = tp->irq_cnt - 1; i >= 0; i--) {
 		struct tg3_napi *tnapi = &tp->napi[i];
 		free_irq(tnapi->irq_vec, tnapi);
 	}
 
-err_out2:
+out_napi_fini:
 	tg3_napi_disable(tp);
 	tg3_napi_fini(tp);
 	tg3_free_consistent(tp);
 
-err_out1:
+out_ints_fini:
 	tg3_ints_fini(tp);
 
 	return err;
-- 
cgit v0.10.2


From 7c10ee32f32644c9efbb3cfebf5fb7cea4b48a2c Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Thu, 23 May 2013 11:11:26 +0000
Subject: tg3: Fix misplaced empty line

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 6ab02d6..bd5917d8 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -1311,8 +1311,8 @@ static int tg3_phy_toggle_auxctl_smdsp(struct tg3 *tp, bool enable)
 
 	if (err)
 		return err;
-	if (enable)
 
+	if (enable)
 		val |= MII_TG3_AUXCTL_ACTL_SMDSP_ENA;
 	else
 		val &= ~MII_TG3_AUXCTL_ACTL_SMDSP_ENA;
-- 
cgit v0.10.2


From f2068b80ca59d63ca21ee1da829c9fe09f25b08e Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Thu, 23 May 2013 11:11:27 +0000
Subject: tg3: Remove unnecessary lock around tg3_flag_set

The spinlock was needed when flags used to be a u32 and set/cleared
using bit operations. Now that we use the atomic set_bit, this lock
isn't needed.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index bd5917d8..d7755d8 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6386,9 +6386,7 @@ static void tg3_tx_recover(struct tg3 *tp)
 		    "Please report the problem to the driver maintainer "
 		    "and include system chipset information.\n");
 
-	spin_lock(&tp->lock);
 	tg3_flag_set(tp, TX_RECOVERY_PENDING);
-	spin_unlock(&tp->lock);
 }
 
 static inline u32 tg3_tx_avail(struct tg3_napi *tnapi)
-- 
cgit v0.10.2


From a80be5a58ebf29e7ca8a2915debe42295608a20a Mon Sep 17 00:00:00 2001
From: Rajesh Borundia <rajesh.borundia@qlogic.com>
Date: Thu, 23 May 2013 21:04:25 +0000
Subject: qlcnic: Support spoof check config.

o Add support for spoof check configuration per VF using
  iproute2 tool.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index aeb26a85..1e19671 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -449,6 +449,7 @@ static const struct net_device_ops qlcnic_netdev_ops = {
 	.ndo_set_vf_tx_rate	= qlcnic_sriov_set_vf_tx_rate,
 	.ndo_get_vf_config	= qlcnic_sriov_get_vf_config,
 	.ndo_set_vf_vlan	= qlcnic_sriov_set_vf_vlan,
+	.ndo_set_vf_spoofchk	= qlcnic_sriov_set_vf_spoofchk,
 #endif
 };
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
index d85fbb5..9176cb0 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
@@ -129,6 +129,7 @@ struct qlcnic_vport {
 	u8			vlan_mode;
 	u16			vlan;
 	u8			qos;
+	bool			spoofchk;
 	u8			mac[6];
 };
 
@@ -225,6 +226,7 @@ int qlcnic_sriov_set_vf_tx_rate(struct net_device *, int, int);
 int qlcnic_sriov_get_vf_config(struct net_device *, int ,
 			       struct ifla_vf_info *);
 int qlcnic_sriov_set_vf_vlan(struct net_device *, int, u16, u8);
+int qlcnic_sriov_set_vf_spoofchk(struct net_device *, int, bool);
 #else
 static inline void qlcnic_sriov_pf_disable(struct qlcnic_adapter *adapter) {}
 static inline void qlcnic_sriov_pf_cleanup(struct qlcnic_adapter *adapter) {}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index 196b2d1..6262c71 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -187,6 +187,7 @@ int qlcnic_sriov_init(struct qlcnic_adapter *adapter, int num_vfs)
 			}
 			sriov->vf_info[i].vp = vp;
 			vp->max_tx_bw = MAX_BW;
+			vp->spoofchk = true;
 			random_ether_addr(vp->mac);
 			dev_info(&adapter->pdev->dev,
 				 "MAC Address %pM is configured for VF %d\n",
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index 1a66ccd..ee0c1d3 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -580,6 +580,7 @@ static int qlcnic_sriov_set_vf_acl(struct qlcnic_adapter *adapter, u8 func)
 	struct qlcnic_cmd_args cmd;
 	struct qlcnic_vport *vp;
 	int err, id;
+	u8 *mac;
 
 	id = qlcnic_sriov_func_to_index(adapter, func);
 	if (id < 0)
@@ -591,6 +592,14 @@ static int qlcnic_sriov_set_vf_acl(struct qlcnic_adapter *adapter, u8 func)
 		return err;
 
 	cmd.req.arg[1] = 0x3 | func << 16;
+	if (vp->spoofchk == true) {
+		mac = vp->mac;
+		cmd.req.arg[2] |= BIT_1 | BIT_3 | BIT_8;
+		cmd.req.arg[4] = mac[5] | mac[4] << 8 | mac[3] << 16 |
+				 mac[2] << 24;
+		cmd.req.arg[5] = mac[1] | mac[0] << 8;
+	}
+
 	if (vp->vlan_mode == QLC_PVID_MODE) {
 		cmd.req.arg[2] |= BIT_6;
 		cmd.req.arg[3] |= vp->vlan << 8;
@@ -1767,6 +1776,7 @@ int qlcnic_sriov_get_vf_config(struct net_device *netdev,
 	memcpy(&ivi->mac, vp->mac, ETH_ALEN);
 	ivi->vlan = vp->vlan;
 	ivi->qos = vp->qos;
+	ivi->spoofchk = vp->spoofchk;
 	if (vp->max_tx_bw == MAX_BW)
 		ivi->tx_rate = 0;
 	else
@@ -1775,3 +1785,29 @@ int qlcnic_sriov_get_vf_config(struct net_device *netdev,
 	ivi->vf = vf;
 	return 0;
 }
+
+int qlcnic_sriov_set_vf_spoofchk(struct net_device *netdev, int vf, bool chk)
+{
+	struct qlcnic_adapter *adapter = netdev_priv(netdev);
+	struct qlcnic_sriov *sriov = adapter->ahw->sriov;
+	struct qlcnic_vf_info *vf_info;
+	struct qlcnic_vport *vp;
+
+	if (!qlcnic_sriov_pf_check(adapter))
+		return -EOPNOTSUPP;
+
+	if (vf >= sriov->num_vfs)
+		return -EINVAL;
+
+	vf_info = &sriov->vf_info[vf];
+	vp = vf_info->vp;
+	if (test_bit(QLC_BC_VF_STATE, &vf_info->state)) {
+		netdev_err(netdev,
+			   "Spoof check change failed for VF %d, as VF driver is loaded. Please unload VF driver and retry the operation\n",
+			   vf);
+		return -EOPNOTSUPP;
+	}
+
+	vp->spoofchk = chk;
+	return 0;
+}
-- 
cgit v0.10.2


From 45ef92ed5815883087c984356a85aa3efdb5bcab Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Thu, 23 May 2013 21:04:26 +0000
Subject: qlcnic: Disable INT-x interrupt for 83xx on driver unload

o Set HW mask for 8300 Series adapter, in INT-x mode, to
  stop generating interrupt during driver unload.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index b4ff1e3..9b91d6a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -312,6 +312,11 @@ inline void qlcnic_83xx_clear_legacy_intr_mask(struct qlcnic_adapter *adapter)
 	writel(0, adapter->tgt_mask_reg);
 }
 
+inline void qlcnic_83xx_set_legacy_intr_mask(struct qlcnic_adapter *adapter)
+{
+	writel(1, adapter->tgt_mask_reg);
+}
+
 /* Enable MSI-x and INT-x interrupts */
 void qlcnic_83xx_enable_intr(struct qlcnic_adapter *adapter,
 			     struct qlcnic_host_sds_ring *sds_ring)
@@ -458,6 +463,9 @@ void qlcnic_83xx_free_mbx_intr(struct qlcnic_adapter *adapter)
 {
 	u32 num_msix;
 
+	if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
+		qlcnic_83xx_set_legacy_intr_mask(adapter);
+
 	qlcnic_83xx_disable_mbx_intr(adapter);
 
 	if (adapter->flags & QLCNIC_MSIX_ENABLED)
-- 
cgit v0.10.2


From aa2a80340ce0b4a148ae8878142d17bc793ba2ab Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Thu, 23 May 2013 21:04:27 +0000
Subject: qlcnic: Update IRQ name for 8200 and 8300 Series adapter.

o Updated IRQ name for 8200 and 8300 Series adapter as per
  format used by other multiqueue drivers.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 9b91d6a..9f5683f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -482,7 +482,6 @@ int qlcnic_83xx_setup_mbx_intr(struct qlcnic_adapter *adapter)
 {
 	irq_handler_t handler;
 	u32 val;
-	char name[32];
 	int err = 0;
 	unsigned long flags = 0;
 
@@ -493,9 +492,7 @@ int qlcnic_83xx_setup_mbx_intr(struct qlcnic_adapter *adapter)
 	if (adapter->flags & QLCNIC_MSIX_ENABLED) {
 		handler = qlcnic_83xx_handle_aen;
 		val = adapter->msix_entries[adapter->ahw->num_msix - 1].vector;
-		snprintf(name, (IFNAMSIZ + 4),
-			 "%s[%s]", "qlcnic", "aen");
-		err = request_irq(val, handler, flags, name, adapter);
+		err = request_irq(val, handler, flags, "qlcnic-MB", adapter);
 		if (err) {
 			dev_err(&adapter->pdev->dev,
 				"failed to register MBX interrupt\n");
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 1e19671..76b95b4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -1396,16 +1396,23 @@ qlcnic_request_irq(struct qlcnic_adapter *adapter)
 			for (ring = 0; ring < num_sds_rings; ring++) {
 				sds_ring = &recv_ctx->sds_rings[ring];
 				if (qlcnic_82xx_check(adapter) &&
-				    (ring == (num_sds_rings - 1)))
+				    (ring == (num_sds_rings - 1))) {
+					if (!(adapter->flags &
+					      QLCNIC_MSIX_ENABLED))
+						snprintf(sds_ring->name,
+							 sizeof(sds_ring->name),
+							 "qlcnic");
+					else
+						snprintf(sds_ring->name,
+							 sizeof(sds_ring->name),
+							 "%s-tx-0-rx-%d",
+							 netdev->name, ring);
+				} else {
 					snprintf(sds_ring->name,
 						 sizeof(sds_ring->name),
-						 "qlcnic-%s[Tx0+Rx%d]",
-						 netdev->name, ring);
-				else
-					snprintf(sds_ring->name,
-						 sizeof(sds_ring->name),
-						 "qlcnic-%s[Rx%d]",
+						 "%s-rx-%d",
 						 netdev->name, ring);
+				}
 				err = request_irq(sds_ring->irq, handler, flags,
 						  sds_ring->name, sds_ring);
 				if (err)
@@ -1420,7 +1427,7 @@ qlcnic_request_irq(struct qlcnic_adapter *adapter)
 			     ring++) {
 				tx_ring = &adapter->tx_ring[ring];
 				snprintf(tx_ring->name, sizeof(tx_ring->name),
-					 "qlcnic-%s[Tx%d]", netdev->name, ring);
+					 "%s-tx-%d", netdev->name, ring);
 				err = request_irq(tx_ring->irq, handler, flags,
 						  tx_ring->name, tx_ring);
 				if (err)
-- 
cgit v0.10.2


From 7e8fd003c96dda2920a4ba0c32d54780d15dfefc Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Thu, 23 May 2013 21:04:28 +0000
Subject: qlcnic: Remove qlcnic_config_npars module parameter

  qlcnic_config_npars module parameter is used to configure NPAR
  operational modes where NPAR function is used for PCI passthrough.
  Removing this paramter as PCI passthrough is not supported for
  NPAR functions.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index c1b693c..60f310a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -303,7 +303,6 @@ extern int qlcnic_use_msi;
 extern int qlcnic_use_msi_x;
 extern int qlcnic_auto_fw_reset;
 extern int qlcnic_load_fw_file;
-extern int qlcnic_config_npars;
 
 /* Number of status descriptors to handle per interrupt */
 #define MAX_STATUS_HANDLE	(64)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
index b0c3de9..55e5e1b 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
@@ -42,27 +42,18 @@ int qlcnic_83xx_disable_vnic_mode(struct qlcnic_adapter *adapter, int lock)
 static int qlcnic_83xx_set_vnic_opmode(struct qlcnic_adapter *adapter)
 {
 	u8 id;
-	int i, ret = -EBUSY;
+	int ret = -EBUSY;
 	u32 data = QLCNIC_MGMT_FUNC;
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 
 	if (qlcnic_83xx_lock_driver(adapter))
 		return ret;
 
-	if (qlcnic_config_npars) {
-		for (i = 0; i < ahw->act_pci_func; i++) {
-			id = adapter->npars[i].pci_func;
-			if (id == ahw->pci_func)
-				continue;
-			data |= qlcnic_config_npars &
-				QLC_83XX_SET_FUNC_OPMODE(0x3, id);
-		}
-	} else {
-		data = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
-		data = (data & ~QLC_83XX_SET_FUNC_OPMODE(0x3, ahw->pci_func)) |
-		       QLC_83XX_SET_FUNC_OPMODE(QLCNIC_MGMT_FUNC,
-						ahw->pci_func);
-	}
+	id = ahw->pci_func;
+	data = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
+	data = (data & ~QLC_83XX_SET_FUNC_OPMODE(0x3, id)) |
+	       QLC_83XX_SET_FUNC_OPMODE(QLCNIC_MGMT_FUNC, id);
+
 	QLCWRX(adapter->ahw, QLC_83XX_DRV_OP_MODE, data);
 
 	qlcnic_83xx_unlock_driver(adapter);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 76b95b4..5b18b0a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -52,10 +52,6 @@ int qlcnic_load_fw_file;
 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
 
-int qlcnic_config_npars;
-module_param(qlcnic_config_npars, int, 0444);
-MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled)");
-
 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
 static void qlcnic_remove(struct pci_dev *pdev);
 static int qlcnic_open(struct net_device *netdev);
@@ -769,7 +765,7 @@ static int
 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 {
 	u8 id;
-	int i, ret = 1;
+	int ret;
 	u32 data = QLCNIC_MGMT_FUNC;
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 
@@ -777,20 +773,10 @@ qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 	if (ret)
 		goto err_lock;
 
-	if (qlcnic_config_npars) {
-		for (i = 0; i < ahw->act_pci_func; i++) {
-			id = adapter->npars[i].pci_func;
-			if (id == ahw->pci_func)
-				continue;
-			data |= (qlcnic_config_npars &
-					QLC_DEV_SET_DRV(0xf, id));
-		}
-	} else {
-		data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
-		data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
-			(QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
-					 ahw->pci_func));
-	}
+	id = ahw->pci_func;
+	data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
+	data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
+	       QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 	QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 	qlcnic_api_unlock(adapter);
 err_lock:
-- 
cgit v0.10.2


From 1267ff962fc04d33d30b52c5c09201df2b1c1d76 Mon Sep 17 00:00:00 2001
From: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Date: Thu, 23 May 2013 21:04:29 +0000
Subject: qlcnic: Initialize trans_work and idc_aen_work at VF probe.

o work_struct should be initialized before cancel_delayed_work
  call to destroy it.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index 6262c71..bcd200e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -35,6 +35,7 @@ static void qlcnic_sriov_vf_cancel_fw_work(struct qlcnic_adapter *);
 static void qlcnic_sriov_cleanup_transaction(struct qlcnic_bc_trans *);
 static int qlcnic_sriov_vf_mbx_op(struct qlcnic_adapter *,
 				  struct qlcnic_cmd_args *);
+static void qlcnic_sriov_process_bc_cmd(struct work_struct *);
 
 static struct qlcnic_hardware_ops qlcnic_sriov_vf_hw_ops = {
 	.read_crb			= qlcnic_83xx_read_crb,
@@ -179,6 +180,8 @@ int qlcnic_sriov_init(struct qlcnic_adapter *adapter, int num_vfs)
 		spin_lock_init(&vf->rcv_pend.lock);
 		init_completion(&vf->ch_free_cmpl);
 
+		INIT_WORK(&vf->trans_work, qlcnic_sriov_process_bc_cmd);
+
 		if (qlcnic_sriov_pf_check(adapter)) {
 			vp = kzalloc(sizeof(struct qlcnic_vport), GFP_KERNEL);
 			if (!vp) {
@@ -653,6 +656,8 @@ int qlcnic_sriov_vf_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 	if (qlcnic_read_mac_addr(adapter))
 		dev_warn(&adapter->pdev->dev, "failed to read mac addr\n");
 
+	INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
+
 	clear_bit(__QLCNIC_RESETTING, &adapter->state);
 	return 0;
 }
@@ -865,7 +870,6 @@ static void qlcnic_sriov_schedule_bc_cmd(struct qlcnic_sriov *sriov,
 	    vf->adapter->need_fw_reset)
 		return;
 
-	INIT_WORK(&vf->trans_work, func);
 	queue_work(sriov->bc.bc_trans_wq, &vf->trans_work);
 }
 
-- 
cgit v0.10.2


From b17f2ccaeea10f30322b9706d8d9b5b39d21f427 Mon Sep 17 00:00:00 2001
From: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Date: Thu, 23 May 2013 21:04:30 +0000
Subject: qlcnic: Convert nested if-else to switch-case

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
index 55e5e1b..b5054e1 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
@@ -187,20 +187,24 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
 	else
 		priv_level = QLC_83XX_GET_FUNC_PRIVILEGE(op_mode,
 							 ahw->pci_func);
-
-	if (priv_level == QLCNIC_NON_PRIV_FUNC) {
+	switch (priv_level) {
+	case QLCNIC_NON_PRIV_FUNC:
 		ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
 		nic_ops->init_driver = qlcnic_83xx_init_non_privileged_vnic;
-	} else if (priv_level == QLCNIC_PRIV_FUNC) {
+		break;
+	case QLCNIC_PRIV_FUNC:
 		ahw->op_mode = QLCNIC_PRIV_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_vnic_pf_entry;
 		nic_ops->init_driver = qlcnic_83xx_init_privileged_vnic;
-	} else if (priv_level == QLCNIC_MGMT_FUNC) {
+		break;
+	case QLCNIC_MGMT_FUNC:
 		ahw->op_mode = QLCNIC_MGMT_FUNC;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
 		nic_ops->init_driver = qlcnic_83xx_init_mgmt_vnic;
-	} else {
+		break;
+	default:
+		dev_err(&adapter->pdev->dev, "Invalid Virtual NIC opmode\n");
 		return -EIO;
 	}
 
@@ -209,8 +213,8 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
 	else
 		adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 
-	adapter->ahw->idc.vnic_state = QLCNIC_DEV_NPAR_NON_OPER;
-	adapter->ahw->idc.vnic_wait_limit = QLCNIC_DEV_NPAR_OPER_TIMEO;
+	ahw->idc.vnic_state = QLCNIC_DEV_NPAR_NON_OPER;
+	ahw->idc.vnic_wait_limit = QLCNIC_DEV_NPAR_OPER_TIMEO;
 
 	return 0;
 }
-- 
cgit v0.10.2


From 4690a7e48ac55cf84fcf214279baf133304d71e4 Mon Sep 17 00:00:00 2001
From: Sony Chacko <sony.chacko@qlogic.com>
Date: Thu, 23 May 2013 21:04:31 +0000
Subject: qlcnic: diagnostics routine changes

Test and set diagnostics mode bit before starting
diagnostics tests. Stop diagnostics tests if adapter is resetting.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 60f310a..8affec5 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -931,6 +931,7 @@ struct qlcnic_ipaddr {
 #define __QLCNIC_SRIOV_ENABLE		10
 #define __QLCNIC_SRIOV_CAPABLE		11
 #define __QLCNIC_MBX_POLL_ENABLE	12
+#define __QLCNIC_DIAG_MODE		13
 
 #define QLCNIC_INTERRUPT_TEST		1
 #define QLCNIC_LOOPBACK_TEST		2
@@ -1476,6 +1477,7 @@ int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter);
 void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *);
 
 /* Functions from qlcnic_ethtool.c */
+
 int qlcnic_check_loopback_buff(unsigned char *, u8 []);
 int qlcnic_do_lb_test(struct qlcnic_adapter *, u8);
 int qlcnic_loopback_test(struct net_device *, u8);
@@ -1885,6 +1887,16 @@ static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
 		writel(0xfbff, adapter->tgt_mask_reg);
 }
 
+static inline int qlcnic_get_diag_lock(struct qlcnic_adapter *adapter)
+{
+	return test_and_set_bit(__QLCNIC_DIAG_MODE, &adapter->state);
+}
+
+static inline void qlcnic_release_diag_lock(struct qlcnic_adapter *adapter)
+{
+	clear_bit(__QLCNIC_DIAG_MODE, &adapter->state);
+}
+
 extern const struct ethtool_ops qlcnic_sriov_vf_ethtool_ops;
 extern const struct ethtool_ops qlcnic_ethtool_ops;
 extern const struct ethtool_ops qlcnic_ethtool_failed_ops;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 9f5683f..1e699e6 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -1593,16 +1593,24 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	int ret = 0, loop = 0, max_sds_rings = adapter->max_sds_rings;
 
-	QLCDB(adapter, DRV, "%s loopback test in progress\n",
-	      mode == QLCNIC_ILB_MODE ? "internal" : "external");
 	if (ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
-		dev_warn(&adapter->pdev->dev,
-			 "Loopback test not supported for non privilege function\n");
+		netdev_warn(netdev,
+			    "Loopback test not supported in non privileged mode\n");
 		return ret;
 	}
 
-	if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+	if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
+		netdev_info(netdev, "Device is resetting\n");
 		return -EBUSY;
+	}
+
+	if (qlcnic_get_diag_lock(adapter)) {
+		netdev_info(netdev, "Device is in diagnostics mode\n");
+		return -EBUSY;
+	}
+
+	netdev_info(netdev, "%s loopback test in progress\n",
+		    mode == QLCNIC_ILB_MODE ? "internal" : "external");
 
 	ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST,
 					 max_sds_rings);
@@ -1643,7 +1651,7 @@ free_diag_res:
 
 fail_diag_alloc:
 	adapter->max_sds_rings = max_sds_rings;
-	clear_bit(__QLCNIC_RESETTING, &adapter->state);
+	qlcnic_release_diag_lock(adapter);
 	return ret;
 }
 
@@ -3118,8 +3126,10 @@ int qlcnic_83xx_interrupt_test(struct net_device *netdev)
 	u8 val;
 	int ret, max_sds_rings = adapter->max_sds_rings;
 
-	if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
-		return -EIO;
+	if (qlcnic_get_diag_lock(adapter)) {
+		netdev_info(netdev, "Device in diagnostics mode\n");
+		return -EBUSY;
+	}
 
 	ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_INTERRUPT_TEST,
 					 max_sds_rings);
@@ -3161,7 +3171,7 @@ done:
 
 fail_diag_irq:
 	adapter->max_sds_rings = max_sds_rings;
-	clear_bit(__QLCNIC_RESETTING, &adapter->state);
+	qlcnic_release_diag_lock(adapter);
 	return ret;
 }
 
-- 
cgit v0.10.2


From 099907fac61c47a67a02edb85d551e91959ecc5b Mon Sep 17 00:00:00 2001
From: Sony Chacko <sony.chacko@qlogic.com>
Date: Thu, 23 May 2013 21:04:32 +0000
Subject: qlcnic: modify reset recovery path in diag mode

Provide diagnostics routines enough time to unwind before
proceeding with reset recovery.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 8affec5..4ff0625 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -1477,7 +1477,6 @@ int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter);
 void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *);
 
 /* Functions from qlcnic_ethtool.c */
-
 int qlcnic_check_loopback_buff(unsigned char *, u8 []);
 int qlcnic_do_lb_test(struct qlcnic_adapter *, u8);
 int qlcnic_loopback_test(struct net_device *, u8);
@@ -1897,6 +1896,11 @@ static inline void qlcnic_release_diag_lock(struct qlcnic_adapter *adapter)
 	clear_bit(__QLCNIC_DIAG_MODE, &adapter->state);
 }
 
+static inline int qlcnic_check_diag_status(struct qlcnic_adapter *adapter)
+{
+	return test_bit(__QLCNIC_DIAG_MODE, &adapter->state);
+}
+
 extern const struct ethtool_ops qlcnic_sriov_vf_ethtool_ops;
 extern const struct ethtool_ops qlcnic_ethtool_ops;
 extern const struct ethtool_ops qlcnic_ethtool_failed_ops;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index f5db67f..1bfe283 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -314,6 +314,7 @@ struct qlc_83xx_idc {
 	u8		vnic_state;
 	u8		vnic_wait_limit;
 	u8		quiesce_req;
+	u8		delay_reset;
 	char		**name;
 };
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index 5e7fb1d..aa26250 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -649,6 +649,7 @@ static void qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter *adapter)
 	ahw->idc.collect_dump = 0;
 	ahw->reset_context = 0;
 	adapter->tx_timeo_cnt = 0;
+	ahw->idc.delay_reset = 0;
 
 	clear_bit(__QLCNIC_RESETTING, &adapter->state);
 }
@@ -883,21 +884,41 @@ static int qlcnic_83xx_idc_need_reset_state(struct qlcnic_adapter *adapter)
 	int ret = 0;
 
 	if (adapter->ahw->idc.prev_state != QLC_83XX_IDC_DEV_NEED_RESET) {
-		qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
 		qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
 		set_bit(__QLCNIC_RESETTING, &adapter->state);
 		clear_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
 		if (adapter->ahw->nic_mode == QLC_83XX_VIRTUAL_NIC_MODE)
 			qlcnic_83xx_disable_vnic_mode(adapter, 1);
-		qlcnic_83xx_idc_detach_driver(adapter);
+
+		if (qlcnic_check_diag_status(adapter)) {
+			dev_info(&adapter->pdev->dev,
+				 "%s: Wait for diag completion\n", __func__);
+			adapter->ahw->idc.delay_reset = 1;
+			return 0;
+		} else {
+			qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
+			qlcnic_83xx_idc_detach_driver(adapter);
+		}
 	}
 
-	/* Check ACK from other functions */
-	ret = qlcnic_83xx_idc_check_reset_ack_reg(adapter);
-	if (ret) {
+	if (qlcnic_check_diag_status(adapter)) {
 		dev_info(&adapter->pdev->dev,
-			 "%s: Waiting for reset ACK\n", __func__);
-		return 0;
+			 "%s: Wait for diag completion\n", __func__);
+		return  -1;
+	} else {
+		if (adapter->ahw->idc.delay_reset) {
+			qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
+			qlcnic_83xx_idc_detach_driver(adapter);
+			adapter->ahw->idc.delay_reset = 0;
+		}
+
+		/* Check for ACK from other functions */
+		ret = qlcnic_83xx_idc_check_reset_ack_reg(adapter);
+		if (ret) {
+			dev_info(&adapter->pdev->dev,
+				 "%s: Waiting for reset ACK\n", __func__);
+			return -1;
+		}
 	}
 
 	/* Transit to INIT state and restart the HW */
-- 
cgit v0.10.2


From 487042af928c16d2a5b4dd52a9639a03b8b40761 Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Thu, 23 May 2013 21:04:33 +0000
Subject: qlcnic: Implement GET_LED_STATUS command for 82xx adapter.

o GET_LED_STATUS command will be used by driver to get
  current beacon state from 82xx adapter.
o Refactored qlcnic_store_beacon() to split 8200 and 8300
  specific calls.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 4ff0625..e6f8bec 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -815,6 +815,7 @@ struct qlcnic_mac_list_s {
 #define QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG	BIT_2
 #define QLCNIC_FW_CAP2_HW_LRO_IPV6		BIT_3
 #define QLCNIC_FW_CAPABILITY_2_OCBB		BIT_5
+#define QLCNIC_FW_CAPABILITY_2_BEACON		BIT_7
 
 /* module types */
 #define LINKEVENT_MODULE_NOT_PRESENT			1
@@ -912,6 +913,9 @@ struct qlcnic_ipaddr {
 #define QLCNIC_IS_TSO_CAPABLE(adapter)  \
 	((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
 
+#define QLCNIC_BEACON_EANBLE		0xC
+#define QLCNIC_BEACON_DISABLE		0xD
+
 #define QLCNIC_DEF_NUM_STS_DESC_RINGS	4
 #define QLCNIC_MSIX_TBL_SPACE		8192
 #define QLCNIC_PCI_REG_MSIX_TBL 	0x44
@@ -1543,6 +1547,7 @@ int qlcnic_set_default_offload_settings(struct qlcnic_adapter *);
 int qlcnic_reset_npar_config(struct qlcnic_adapter *);
 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *);
 void qlcnic_add_lb_filter(struct qlcnic_adapter *, struct sk_buff *, int, u16);
+int qlcnic_get_beacon_state(struct qlcnic_adapter *, u8 *);
 int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter);
 int qlcnic_read_mac_addr(struct qlcnic_adapter *);
 int qlcnic_setup_netdev(struct qlcnic_adapter *, struct net_device *, int);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index 43562c2..d63b5f7 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -37,6 +37,7 @@ static const struct qlcnic_mailbox_metadata qlcnic_mbx_tbl[] = {
 	{QLCNIC_CMD_TEMP_SIZE, 4, 4},
 	{QLCNIC_CMD_GET_TEMP_HDR, 4, 1},
 	{QLCNIC_CMD_SET_DRV_VER, 4, 1},
+	{QLCNIC_CMD_GET_LED_STATUS, 4, 2},
 };
 
 static inline u32 qlcnic_get_cmd_signature(struct qlcnic_hardware_context *ahw)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index 106a12f..218978d 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -1503,6 +1503,21 @@ int qlcnic_82xx_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
 	return rv;
 }
 
+int qlcnic_get_beacon_state(struct qlcnic_adapter *adapter, u8 *h_state)
+{
+	struct qlcnic_cmd_args cmd;
+	int err;
+
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LED_STATUS);
+	if (!err) {
+		err = qlcnic_issue_cmd(adapter, &cmd);
+		if (!err)
+			*h_state = cmd.rsp.arg[1];
+	}
+	qlcnic_free_mbx_args(&cmd);
+	return err;
+}
+
 void qlcnic_82xx_get_func_no(struct qlcnic_adapter *adapter)
 {
 	void __iomem *msix_base_addr;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
index b6818f4..812fd07 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
@@ -87,6 +87,7 @@ enum qlcnic_regs {
 #define	QLCNIC_CMD_CONFIG_VPORT			0x32
 #define QLCNIC_CMD_GET_MAC_STATS		0x37
 #define QLCNIC_CMD_SET_DRV_VER			0x38
+#define QLCNIC_CMD_GET_LED_STATUS		0x3C
 #define QLCNIC_CMD_CONFIGURE_RSS		0x41
 #define QLCNIC_CMD_CONFIG_INTR_COAL		0x43
 #define QLCNIC_CMD_CONFIGURE_LED		0x44
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index e7a2fe2..025a719 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -114,57 +114,51 @@ static int qlcnic_validate_beacon(struct qlcnic_adapter *adapter, u16 beacon,
 	return 0;
 }
 
-static ssize_t qlcnic_store_beacon(struct device *dev,
-				   struct device_attribute *attr,
-				   const char *buf, size_t len)
+static int qlcnic_83xx_store_beacon(struct qlcnic_adapter *adapter,
+				    const char *buf, size_t len)
 {
-	struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
-	int err, max_sds_rings = adapter->max_sds_rings;
-	u16 beacon;
-	u8 b_state, b_rate;
 	unsigned long h_beacon;
+	int err;
 
-	if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
-		dev_warn(dev,
-			 "LED test not supported in non privileged mode\n");
-		return -EOPNOTSUPP;
-	}
+	if (test_bit(__QLCNIC_RESETTING, &adapter->state))
+		return -EIO;
 
-	if (qlcnic_83xx_check(adapter) &&
-	    !test_bit(__QLCNIC_RESETTING, &adapter->state)) {
-		if (kstrtoul(buf, 2, &h_beacon))
-			return -EINVAL;
+	if (kstrtoul(buf, 2, &h_beacon))
+		return -EINVAL;
 
-		if (ahw->beacon_state == h_beacon)
-			return len;
+	if (ahw->beacon_state == h_beacon)
+		return len;
 
-		rtnl_lock();
-		if (!ahw->beacon_state) {
-			if (test_and_set_bit(__QLCNIC_LED_ENABLE,
-					     &adapter->state)) {
-				rtnl_unlock();
-				return -EBUSY;
-			}
-		}
-		if (h_beacon) {
-			err = qlcnic_83xx_config_led(adapter, 1, h_beacon);
-			if (err)
-				goto beacon_err;
-		} else {
-			err = qlcnic_83xx_config_led(adapter, 0, !h_beacon);
-			if (err)
-				goto beacon_err;
+	rtnl_lock();
+	if (!ahw->beacon_state) {
+		if (test_and_set_bit(__QLCNIC_LED_ENABLE, &adapter->state)) {
+			rtnl_unlock();
+			return -EBUSY;
 		}
-		/* set the current beacon state */
+	}
+
+	if (h_beacon)
+		err = qlcnic_83xx_config_led(adapter, 1, h_beacon);
+	else
+		err = qlcnic_83xx_config_led(adapter, 0, !h_beacon);
+	if (!err)
 		ahw->beacon_state = h_beacon;
-beacon_err:
-		if (!ahw->beacon_state)
-			clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
 
-		rtnl_unlock();
-		return len;
-	}
+	if (!ahw->beacon_state)
+		clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
+
+	rtnl_unlock();
+	return len;
+}
+
+static int qlcnic_82xx_store_beacon(struct qlcnic_adapter *adapter,
+				    const char *buf, size_t len)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	int err, max_sds_rings = adapter->max_sds_rings;
+	u16 beacon;
+	u8 h_beacon_state, b_state, b_rate;
 
 	if (len != sizeof(u16))
 		return QL_STATUS_INVALID_PARAM;
@@ -174,16 +168,29 @@ beacon_err:
 	if (err)
 		return err;
 
-	if (adapter->ahw->beacon_state == b_state)
+	if ((ahw->capabilities2 & QLCNIC_FW_CAPABILITY_2_BEACON)) {
+		err = qlcnic_get_beacon_state(adapter, &h_beacon_state);
+		if (!err) {
+			dev_info(&adapter->pdev->dev,
+				 "Failed to get current beacon state\n");
+		} else {
+			if (h_beacon_state == QLCNIC_BEACON_DISABLE)
+				ahw->beacon_state = 0;
+			else if (h_beacon_state == QLCNIC_BEACON_EANBLE)
+				ahw->beacon_state = 2;
+		}
+	}
+
+	if (ahw->beacon_state == b_state)
 		return len;
 
 	rtnl_lock();
-
-	if (!adapter->ahw->beacon_state)
+	if (!ahw->beacon_state) {
 		if (test_and_set_bit(__QLCNIC_LED_ENABLE, &adapter->state)) {
 			rtnl_unlock();
 			return -EBUSY;
 		}
+	}
 
 	if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
 		err = -EIO;
@@ -206,14 +213,37 @@ beacon_err:
 	if (test_and_clear_bit(__QLCNIC_DIAG_RES_ALLOC, &adapter->state))
 		qlcnic_diag_free_res(adapter->netdev, max_sds_rings);
 
- out:
-	if (!adapter->ahw->beacon_state)
+out:
+	if (!ahw->beacon_state)
 		clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
 	rtnl_unlock();
 
 	return err;
 }
 
+static ssize_t qlcnic_store_beacon(struct device *dev,
+				   struct device_attribute *attr,
+				   const char *buf, size_t len)
+{
+	struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
+	int err = 0;
+
+	if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
+		dev_warn(dev,
+			 "LED test not supported in non privileged mode\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (qlcnic_82xx_check(adapter))
+		err = qlcnic_82xx_store_beacon(adapter, buf, len);
+	else if (qlcnic_83xx_check(adapter))
+		err = qlcnic_83xx_store_beacon(adapter, buf, len);
+	else
+		return -EIO;
+
+	return err;
+}
+
 static ssize_t qlcnic_show_beacon(struct device *dev,
 				  struct device_attribute *attr, char *buf)
 {
-- 
cgit v0.10.2


From 2343f06a8c9549af27b885d36e26c59771d697f1 Mon Sep 17 00:00:00 2001
From: Manish Chopra <manish.chopra@qlogic.com>
Date: Thu, 23 May 2013 21:04:34 +0000
Subject: qlcnic: qlcnic_get_board_name() function cleanup

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 5b18b0a..da82f2e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -862,6 +862,27 @@ static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 	return 0;
 }
 
+static inline bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
+						int index)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned short subsystem_vendor;
+	bool ret = true;
+
+	subsystem_vendor = pdev->subsystem_vendor;
+
+	if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
+	    pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
+		if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
+		    qlcnic_boards[index].sub_device == pdev->subsystem_device)
+			ret = true;
+		else
+			ret = false;
+	}
+
+	return ret;
+}
+
 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 {
 	struct pci_dev *pdev = adapter->pdev;
@@ -869,20 +890,18 @@ static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 
 	for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 		if (qlcnic_boards[i].vendor == pdev->vendor &&
-			qlcnic_boards[i].device == pdev->device &&
-			qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
-			qlcnic_boards[i].sub_device == pdev->subsystem_device) {
-				sprintf(name, "%pM: %s" ,
-					adapter->mac_addr,
-					qlcnic_boards[i].short_name);
-				found = 1;
-				break;
+		    qlcnic_boards[i].device == pdev->device &&
+		    qlcnic_validate_subsystem_id(adapter, i)) {
+			found = 1;
+			break;
 		}
-
 	}
 
 	if (!found)
 		sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
+	else
+		sprintf(name, "%pM: %s" , adapter->mac_addr,
+			qlcnic_boards[i].short_name);
 }
 
 static void
-- 
cgit v0.10.2


From ee9e8b6c6e167e2400efd26b92b300ff1d3f8e8b Mon Sep 17 00:00:00 2001
From: Manish Chopra <manish.chopra@qlogic.com>
Date: Thu, 23 May 2013 21:04:35 +0000
Subject: qlcnic: Enhance virtual NIC logging

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index e6f8bec..00a0957 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -442,6 +442,7 @@ struct qlcnic_hardware_context {
 	u16 max_mtu;
 	u32 msg_enable;
 	u16 act_pci_func;
+	u16 max_pci_func;
 
 	u32 capabilities;
 	u32 capabilities2;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 1e699e6..f63a695 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -2134,26 +2134,25 @@ out:
 int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *adapter,
 			     struct qlcnic_pci_info *pci_info)
 {
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct device *dev = &adapter->pdev->dev;
+	struct qlcnic_cmd_args cmd;
 	int i, err = 0, j = 0;
 	u32 temp;
-	struct qlcnic_cmd_args cmd;
 
 	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PCI_INFO);
 	err = qlcnic_issue_cmd(adapter, &cmd);
 
-	adapter->ahw->act_pci_func = 0;
+	ahw->act_pci_func = 0;
 	if (err == QLCNIC_RCODE_SUCCESS) {
-		pci_info->func_count = cmd.rsp.arg[1] & 0xFF;
-		dev_info(&adapter->pdev->dev,
-			 "%s: total functions = %d\n",
-			 __func__, pci_info->func_count);
+		ahw->max_pci_func = cmd.rsp.arg[1] & 0xFF;
 		for (i = 2, j = 0; j < QLCNIC_MAX_PCI_FUNC; j++, pci_info++) {
 			pci_info->id = cmd.rsp.arg[i] & 0xFFFF;
 			pci_info->active = (cmd.rsp.arg[i] & 0xFFFF0000) >> 16;
 			i++;
 			pci_info->type = cmd.rsp.arg[i] & 0xFFFF;
 			if (pci_info->type == QLCNIC_TYPE_NIC)
-				adapter->ahw->act_pci_func++;
+				ahw->act_pci_func++;
 			temp = (cmd.rsp.arg[i] & 0xFFFF0000) >> 16;
 			pci_info->default_port = temp;
 			i++;
@@ -2165,18 +2164,21 @@ int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *adapter,
 			i++;
 			memcpy(pci_info->mac + sizeof(u32), &cmd.rsp.arg[i], 2);
 			i = i + 3;
-
-			dev_info(&adapter->pdev->dev, "%s:\n"
-				 "\tid = %d active = %d type = %d\n"
-				 "\tport = %d min bw = %d max bw = %d\n"
-				 "\tmac_addr =  %pM\n", __func__,
-				 pci_info->id, pci_info->active, pci_info->type,
-				 pci_info->default_port, pci_info->tx_min_bw,
-				 pci_info->tx_max_bw, pci_info->mac);
+			if (ahw->op_mode == QLCNIC_MGMT_FUNC)
+				dev_info(dev, "id = %d active = %d type = %d\n"
+					 "\tport = %d min bw = %d max bw = %d\n"
+					 "\tmac_addr =  %pM\n", pci_info->id,
+					 pci_info->active, pci_info->type,
+					 pci_info->default_port,
+					 pci_info->tx_min_bw,
+					 pci_info->tx_max_bw, pci_info->mac);
 		}
+		if (ahw->op_mode == QLCNIC_MGMT_FUNC)
+			dev_info(dev, "Max vNIC functions = %d, active vNIC functions = %d\n",
+				 ahw->max_pci_func, ahw->act_pci_func);
+
 	} else {
-		dev_err(&adapter->pdev->dev, "Failed to get PCI Info%d\n",
-			err);
+		dev_err(dev, "Failed to get PCI Info, error = %d\n", err);
 		err = -EIO;
 	}
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index d63b5f7..9d0ae11 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -883,11 +883,12 @@ int qlcnic_82xx_get_pci_info(struct qlcnic_adapter *adapter,
 
 /* Configure eSwitch for port mirroring */
 int qlcnic_config_port_mirroring(struct qlcnic_adapter *adapter, u8 id,
-				u8 enable_mirroring, u8 pci_func)
+				 u8 enable_mirroring, u8 pci_func)
 {
+	struct device *dev = &adapter->pdev->dev;
+	struct qlcnic_cmd_args cmd;
 	int err = -EIO;
 	u32 arg1;
-	struct qlcnic_cmd_args cmd;
 
 	if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC ||
 	    !(adapter->eswitch[id].flags & QLCNIC_SWITCH_ENABLE))
@@ -901,13 +902,11 @@ int qlcnic_config_port_mirroring(struct qlcnic_adapter *adapter, u8 id,
 	err = qlcnic_issue_cmd(adapter, &cmd);
 
 	if (err != QLCNIC_RCODE_SUCCESS)
-		dev_err(&adapter->pdev->dev,
-			"Failed to configure port mirroring%d on eswitch:%d\n",
+		dev_err(dev, "Failed to configure port mirroring for vNIC function %d on eSwitch %d\n",
 			pci_func, id);
 	else
-		dev_info(&adapter->pdev->dev,
-			"Configured eSwitch %d for port mirroring:%d\n",
-			id, pci_func);
+		dev_info(dev, "Configured port mirroring for vNIC function %d on eSwitch %d\n",
+			 pci_func, id);
 	qlcnic_free_mbx_args(&cmd);
 
 	return err;
@@ -1122,14 +1121,13 @@ err_ret:
 	return -EIO;
 }
 
-static int
-__qlcnic_get_eswitch_port_config(struct qlcnic_adapter *adapter,
-					u32 *arg1, u32 *arg2)
+static int __qlcnic_get_eswitch_port_config(struct qlcnic_adapter *adapter,
+					    u32 *arg1, u32 *arg2)
 {
-	int err = -EIO;
+	struct device *dev = &adapter->pdev->dev;
 	struct qlcnic_cmd_args cmd;
-	u8 pci_func;
-	pci_func = (*arg1 >> 8);
+	u8 pci_func = *arg1 >> 8;
+	int err = -EIO;
 
 	qlcnic_alloc_mbx_args(&cmd, adapter,
 			      QLCNIC_CMD_GET_ESWITCH_PORT_CONFIG);
@@ -1140,12 +1138,11 @@ __qlcnic_get_eswitch_port_config(struct qlcnic_adapter *adapter,
 	qlcnic_free_mbx_args(&cmd);
 
 	if (err == QLCNIC_RCODE_SUCCESS)
-		dev_info(&adapter->pdev->dev,
-			 "eSwitch port config for pci func %d\n", pci_func);
+		dev_info(dev, "Get eSwitch port config for vNIC function %d\n",
+			 pci_func);
 	else
-		dev_err(&adapter->pdev->dev,
-			"Failed to get eswitch port config for pci func %d\n",
-								pci_func);
+		dev_err(dev, "Failed to get eswitch port config for vNIC function %d\n",
+			pci_func);
 	return err;
 }
 /* Configure eSwitch port
@@ -1158,9 +1155,10 @@ op_type = 1 for port vlan_id
 int qlcnic_config_switch_port(struct qlcnic_adapter *adapter,
 		struct qlcnic_esw_func_cfg *esw_cfg)
 {
+	struct device *dev = &adapter->pdev->dev;
+	struct qlcnic_cmd_args cmd;
 	int err = -EIO, index;
 	u32 arg1, arg2 = 0;
-	struct qlcnic_cmd_args cmd;
 	u8 pci_func;
 
 	if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
@@ -1217,11 +1215,11 @@ int qlcnic_config_switch_port(struct qlcnic_adapter *adapter,
 	qlcnic_free_mbx_args(&cmd);
 
 	if (err != QLCNIC_RCODE_SUCCESS)
-		dev_err(&adapter->pdev->dev,
-			"Failed to configure eswitch pci func %d\n", pci_func);
+		dev_err(dev, "Failed to configure eswitch for vNIC function %d\n",
+			pci_func);
 	else
-		dev_info(&adapter->pdev->dev,
-			 "Configured eSwitch for pci func %d\n", pci_func);
+		dev_info(dev, "Configured eSwitch for vNIC function %d\n",
+			 pci_func);
 
 	return err;
 }
-- 
cgit v0.10.2


From 6a531b7b1989ddef5ee45c619970037eb2374c0d Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Thu, 23 May 2013 21:04:36 +0000
Subject: qlcnic: Update version to 5.2.43

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 00a0957..534e36e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -38,8 +38,8 @@
 
 #define _QLCNIC_LINUX_MAJOR 5
 #define _QLCNIC_LINUX_MINOR 2
-#define _QLCNIC_LINUX_SUBVERSION 42
-#define QLCNIC_LINUX_VERSIONID  "5.2.42"
+#define _QLCNIC_LINUX_SUBVERSION 43
+#define QLCNIC_LINUX_VERSIONID  "5.2.43"
 #define QLCNIC_DRV_IDC_VER  0x01
 #define QLCNIC_DRIVER_VERSION  ((_QLCNIC_LINUX_MAJOR << 16) |\
 		 (_QLCNIC_LINUX_MINOR << 8) | (_QLCNIC_LINUX_SUBVERSION))
-- 
cgit v0.10.2


From 079956742452494326081349a66942654498cafa Mon Sep 17 00:00:00 2001
From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Date: Mon, 29 Apr 2013 11:55:10 -0700
Subject: ipvs: change type of netns_ipvs->sysctl_sync_qlen_max

This member of struct netns_ipvs is calculated from nr_free_buffer_pages
so change its type to unsigned long in case of overflow.  Also, type of
its related proc var sync_qlen_max and the return type of function
sysctl_sync_qlen_max() should be changed to unsigned long, too.

Besides, the type of ipvs_master_sync_state->sync_queue_len should be
changed to unsigned long accordingly.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Julian Anastasov <ja@ssi.bg>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 4c062cc..4405886 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -905,7 +905,7 @@ struct ip_vs_app {
 struct ipvs_master_sync_state {
 	struct list_head	sync_queue;
 	struct ip_vs_sync_buff	*sync_buff;
-	int			sync_queue_len;
+	unsigned long		sync_queue_len;
 	unsigned int		sync_queue_delay;
 	struct task_struct	*master_thread;
 	struct delayed_work	master_wakeup_work;
@@ -998,7 +998,7 @@ struct netns_ipvs {
 	int			sysctl_snat_reroute;
 	int			sysctl_sync_ver;
 	int			sysctl_sync_ports;
-	int			sysctl_sync_qlen_max;
+	unsigned long		sysctl_sync_qlen_max;
 	int			sysctl_sync_sock_size;
 	int			sysctl_cache_bypass;
 	int			sysctl_expire_nodest_conn;
@@ -1085,7 +1085,7 @@ static inline int sysctl_sync_ports(struct netns_ipvs *ipvs)
 	return ACCESS_ONCE(ipvs->sysctl_sync_ports);
 }
 
-static inline int sysctl_sync_qlen_max(struct netns_ipvs *ipvs)
+static inline unsigned long sysctl_sync_qlen_max(struct netns_ipvs *ipvs)
 {
 	return ipvs->sysctl_sync_qlen_max;
 }
@@ -1138,7 +1138,7 @@ static inline int sysctl_sync_ports(struct netns_ipvs *ipvs)
 	return 1;
 }
 
-static inline int sysctl_sync_qlen_max(struct netns_ipvs *ipvs)
+static inline unsigned long sysctl_sync_qlen_max(struct netns_ipvs *ipvs)
 {
 	return IPVS_SYNC_QLEN_MAX;
 }
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 5b142fb..7014649 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1716,9 +1716,9 @@ static struct ctl_table vs_vars[] = {
 	},
 	{
 		.procname	= "sync_qlen_max",
-		.maxlen		= sizeof(int),
+		.maxlen		= sizeof(unsigned long),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_doulongvec_minmax,
 	},
 	{
 		.procname	= "sync_sock_size",
-- 
cgit v0.10.2


From 6d0bfe22611602f36617bc7aa2ffa1bbb2f54c67 Mon Sep 17 00:00:00 2001
From: Lorenzo Colitti <lorenzo@google.com>
Date: Wed, 22 May 2013 20:17:31 +0000
Subject: net: ipv6: Add IPv6 support to the ping socket.

This adds the ability to send ICMPv6 echo requests without a
raw socket. The equivalent ability for ICMPv4 was added in
2011.

Instead of having separate code paths for IPv4 and IPv6, make
most of the code in net/ipv4/ping.c dual-stack and only add a
few IPv6-specific bits (like the protocol definition) to a new
net/ipv6/ping.c. Hopefully this will reduce divergence and/or
duplication of bugs in the future.

Caveats:

- Setting options via ancillary data (e.g., using IPV6_PKTINFO
  to specify the outgoing interface) is not yet supported.
- There are no separate security settings for IPv4 and IPv6;
  everything is controlled by /proc/net/ipv4/ping_group_range.
- The proc interface does not yet display IPv6 ping sockets
  properly.

Tested with a patched copy of ping6 and using raw socket calls.
Compiles and works with all of CONFIG_IPV6={n,m,y}.

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 0810aa5..ab47582 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -260,6 +260,12 @@ static inline void fl6_sock_release(struct ip6_flowlabel *fl)
 
 extern void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info);
 
+int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
+			       struct icmp6hdr *thdr, int len);
+
+struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *skb,
+				      struct sock *sk, struct flowi6 *fl6);
+
 extern int 			ip6_ra_control(struct sock *sk, int sel);
 
 extern int			ipv6_parse_hopopts(struct sk_buff *skb);
diff --git a/include/net/ping.h b/include/net/ping.h
index 682b5ae..9242fa0 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -13,6 +13,7 @@
 #ifndef _PING_H
 #define _PING_H
 
+#include <net/icmp.h>
 #include <net/netns/hash.h>
 
 /* PING_HTABLE_SIZE must be power of 2 */
@@ -28,6 +29,18 @@
  */
 #define GID_T_MAX (((gid_t)~0U) >> 1)
 
+/* Compatibility glue so we can support IPv6 when it's compiled as a module */
+struct pingv6_ops {
+	int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len);
+	int (*ip6_datagram_recv_ctl)(struct sock *sk, struct msghdr *msg,
+				     struct sk_buff *skb);
+	int (*icmpv6_err_convert)(u8 type, u8 code, int *err);
+	void (*ipv6_icmp_error)(struct sock *sk, struct sk_buff *skb, int err,
+				__be16 port, u32 info, u8 *payload);
+	int (*ipv6_chk_addr)(struct net *net, const struct in6_addr *addr,
+			     struct net_device *dev, int strict);
+};
+
 struct ping_table {
 	struct hlist_nulls_head	hash[PING_HTABLE_SIZE];
 	rwlock_t		lock;
@@ -39,10 +52,39 @@ struct ping_iter_state {
 };
 
 extern struct proto ping_prot;
+extern struct ping_table ping_table;
+#if IS_ENABLED(CONFIG_IPV6)
+extern struct pingv6_ops pingv6_ops;
+#endif
 
+struct pingfakehdr {
+	struct icmphdr icmph;
+	struct iovec *iov;
+	sa_family_t family;
+	__wsum wcheck;
+};
 
-extern void ping_rcv(struct sk_buff *);
-extern void ping_err(struct sk_buff *, u32 info);
+int  ping_get_port(struct sock *sk, unsigned short ident);
+void ping_hash(struct sock *sk);
+void ping_unhash(struct sock *sk);
+
+int  ping_init_sock(struct sock *sk);
+void ping_close(struct sock *sk, long timeout);
+int  ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+void ping_err(struct sk_buff *skb, int offset, u32 info);
+int  ping_getfrag(void *from, char *to, int offset, int fraglen, int odd,
+		  struct sk_buff *);
+
+int  ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		  size_t len, int noblock, int flags, int *addr_len);
+int  ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
+			 void *user_icmph, size_t icmph_len);
+int  ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		     size_t len);
+int  ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		     size_t len);
+int  ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
+void ping_rcv(struct sk_buff *skb);
 
 #ifdef CONFIG_PROC_FS
 extern int __init ping_proc_init(void);
@@ -50,6 +92,7 @@ extern void ping_proc_exit(void);
 #endif
 
 void __init ping_init(void);
-
+int  __init pingv6_init(void);
+void pingv6_exit(void);
 
 #endif /* _PING_H */
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index 938b7fd..eb40e71 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -11,6 +11,7 @@ extern struct proto rawv6_prot;
 extern struct proto udpv6_prot;
 extern struct proto udplitev6_prot;
 extern struct proto tcpv6_prot;
+extern struct proto pingv6_prot;
 
 struct flowi6;
 
@@ -21,6 +22,8 @@ extern int				ipv6_frag_init(void);
 extern void				ipv6_frag_exit(void);
 
 /* transport protocols */
+extern int				pingv6_init(void);
+extern void				pingv6_exit(void);
 extern int				rawv6_init(void);
 extern void				rawv6_exit(void);
 extern int				udpv6_init(void);
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 76e10b4..562efd9 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -939,7 +939,8 @@ error:
 void icmp_err(struct sk_buff *skb, u32 info)
 {
 	struct iphdr *iph = (struct iphdr *)skb->data;
-	struct icmphdr *icmph = (struct icmphdr *)(skb->data+(iph->ihl<<2));
+	int offset = iph->ihl<<2;
+	struct icmphdr *icmph = (struct icmphdr *)(skb->data + offset);
 	int type = icmp_hdr(skb)->type;
 	int code = icmp_hdr(skb)->code;
 	struct net *net = dev_net(skb->dev);
@@ -949,7 +950,7 @@ void icmp_err(struct sk_buff *skb, u32 info)
 	 * triggered by ICMP_ECHOREPLY which sent from kernel.
 	 */
 	if (icmph->type != ICMP_ECHOREPLY) {
-		ping_err(skb, info);
+		ping_err(skb, offset, info);
 		return;
 	}
 
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 7d93d62..71f6ad0 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -33,7 +33,6 @@
 #include <linux/netdevice.h>
 #include <net/snmp.h>
 #include <net/ip.h>
-#include <net/ipv6.h>
 #include <net/icmp.h>
 #include <net/protocol.h>
 #include <linux/skbuff.h>
@@ -46,8 +45,18 @@
 #include <net/inet_common.h>
 #include <net/checksum.h>
 
+#if IS_ENABLED(CONFIG_IPV6)
+#include <linux/in6.h>
+#include <linux/icmpv6.h>
+#include <net/addrconf.h>
+#include <net/ipv6.h>
+#include <net/transp_v6.h>
+#endif
 
-static struct ping_table ping_table;
+
+struct ping_table ping_table;
+struct pingv6_ops pingv6_ops;
+EXPORT_SYMBOL_GPL(pingv6_ops);
 
 static u16 ping_port_rover;
 
@@ -58,6 +67,7 @@ static inline int ping_hashfn(struct net *net, unsigned int num, unsigned int ma
 	pr_debug("hash(%d) = %d\n", num, res);
 	return res;
 }
+EXPORT_SYMBOL_GPL(ping_hash);
 
 static inline struct hlist_nulls_head *ping_hashslot(struct ping_table *table,
 					     struct net *net, unsigned int num)
@@ -65,7 +75,7 @@ static inline struct hlist_nulls_head *ping_hashslot(struct ping_table *table,
 	return &table->hash[ping_hashfn(net, num, PING_HTABLE_MASK)];
 }
 
-static int ping_v4_get_port(struct sock *sk, unsigned short ident)
+int ping_get_port(struct sock *sk, unsigned short ident)
 {
 	struct hlist_nulls_node *node;
 	struct hlist_nulls_head *hlist;
@@ -103,6 +113,10 @@ next_port:
 		ping_portaddr_for_each_entry(sk2, node, hlist) {
 			isk2 = inet_sk(sk2);
 
+			/* BUG? Why is this reuse and not reuseaddr? ping.c
+			 * doesn't turn off SO_REUSEADDR, and it doesn't expect
+			 * that other ping processes can steal its packets.
+			 */
 			if ((isk2->inet_num == ident) &&
 			    (sk2 != sk) &&
 			    (!sk2->sk_reuse || !sk->sk_reuse))
@@ -125,17 +139,18 @@ fail:
 	write_unlock_bh(&ping_table.lock);
 	return 1;
 }
+EXPORT_SYMBOL_GPL(ping_get_port);
 
-static void ping_v4_hash(struct sock *sk)
+void ping_hash(struct sock *sk)
 {
-	pr_debug("ping_v4_hash(sk->port=%u)\n", inet_sk(sk)->inet_num);
+	pr_debug("ping_hash(sk->port=%u)\n", inet_sk(sk)->inet_num);
 	BUG(); /* "Please do not press this button again." */
 }
 
-static void ping_v4_unhash(struct sock *sk)
+void ping_unhash(struct sock *sk)
 {
 	struct inet_sock *isk = inet_sk(sk);
-	pr_debug("ping_v4_unhash(isk=%p,isk->num=%u)\n", isk, isk->inet_num);
+	pr_debug("ping_unhash(isk=%p,isk->num=%u)\n", isk, isk->inet_num);
 	if (sk_hashed(sk)) {
 		write_lock_bh(&ping_table.lock);
 		hlist_nulls_del(&sk->sk_nulls_node);
@@ -146,31 +161,61 @@ static void ping_v4_unhash(struct sock *sk)
 		write_unlock_bh(&ping_table.lock);
 	}
 }
+EXPORT_SYMBOL_GPL(ping_unhash);
 
-static struct sock *ping_v4_lookup(struct net *net, __be32 saddr, __be32 daddr,
-				   u16 ident, int dif)
+static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident)
 {
 	struct hlist_nulls_head *hslot = ping_hashslot(&ping_table, net, ident);
 	struct sock *sk = NULL;
 	struct inet_sock *isk;
 	struct hlist_nulls_node *hnode;
+	int dif = skb->dev->ifindex;
+
+	if (skb->protocol == htons(ETH_P_IP)) {
+		pr_debug("try to find: num = %d, daddr = %pI4, dif = %d\n",
+			 (int)ident, &ip_hdr(skb)->daddr, dif);
+#if IS_ENABLED(CONFIG_IPV6)
+	} else if (skb->protocol == htons(ETH_P_IPV6)) {
+		pr_debug("try to find: num = %d, daddr = %pI6c, dif = %d\n",
+			 (int)ident, &ipv6_hdr(skb)->daddr, dif);
+#endif
+	}
 
-	pr_debug("try to find: num = %d, daddr = %pI4, dif = %d\n",
-		 (int)ident, &daddr, dif);
 	read_lock_bh(&ping_table.lock);
 
 	ping_portaddr_for_each_entry(sk, hnode, hslot) {
 		isk = inet_sk(sk);
 
-		pr_debug("found: %p: num = %d, daddr = %pI4, dif = %d\n", sk,
-			 (int)isk->inet_num, &isk->inet_rcv_saddr,
-			 sk->sk_bound_dev_if);
-
 		pr_debug("iterate\n");
 		if (isk->inet_num != ident)
 			continue;
-		if (isk->inet_rcv_saddr && isk->inet_rcv_saddr != daddr)
-			continue;
+
+		if (skb->protocol == htons(ETH_P_IP) &&
+		    sk->sk_family == AF_INET) {
+			pr_debug("found: %p: num=%d, daddr=%pI4, dif=%d\n", sk,
+				 (int) isk->inet_num, &isk->inet_rcv_saddr,
+				 sk->sk_bound_dev_if);
+
+			if (isk->inet_rcv_saddr &&
+			    isk->inet_rcv_saddr != ip_hdr(skb)->daddr)
+				continue;
+#if IS_ENABLED(CONFIG_IPV6)
+		} else if (skb->protocol == htons(ETH_P_IPV6) &&
+			   sk->sk_family == AF_INET6) {
+			struct ipv6_pinfo *np = inet6_sk(sk);
+
+			pr_debug("found: %p: num=%d, daddr=%pI6c, dif=%d\n", sk,
+				 (int) isk->inet_num,
+				 &inet6_sk(sk)->rcv_saddr,
+				 sk->sk_bound_dev_if);
+
+			if (!ipv6_addr_any(&np->rcv_saddr) &&
+			    !ipv6_addr_equal(&np->rcv_saddr,
+					     &ipv6_hdr(skb)->daddr))
+				continue;
+#endif
+		}
+
 		if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)
 			continue;
 
@@ -200,7 +245,7 @@ static void inet_get_ping_group_range_net(struct net *net, kgid_t *low,
 }
 
 
-static int ping_init_sock(struct sock *sk)
+int ping_init_sock(struct sock *sk)
 {
 	struct net *net = sock_net(sk);
 	kgid_t group = current_egid();
@@ -225,8 +270,9 @@ static int ping_init_sock(struct sock *sk)
 
 	return -EACCES;
 }
+EXPORT_SYMBOL_GPL(ping_init_sock);
 
-static void ping_close(struct sock *sk, long timeout)
+void ping_close(struct sock *sk, long timeout)
 {
 	pr_debug("ping_close(sk=%p,sk->num=%u)\n",
 		 inet_sk(sk), inet_sk(sk)->inet_num);
@@ -234,36 +280,122 @@ static void ping_close(struct sock *sk, long timeout)
 
 	sk_common_release(sk);
 }
+EXPORT_SYMBOL_GPL(ping_close);
+
+/* Checks the bind address and possibly modifies sk->sk_bound_dev_if. */
+int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
+			 struct sockaddr *uaddr, int addr_len) {
+	struct net *net = sock_net(sk);
+	if (sk->sk_family == AF_INET) {
+		struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
+		int chk_addr_ret;
+
+		if (addr_len < sizeof(*addr))
+			return -EINVAL;
+
+		pr_debug("ping_check_bind_addr(sk=%p,addr=%pI4,port=%d)\n",
+			 sk, &addr->sin_addr.s_addr, ntohs(addr->sin_port));
+
+		chk_addr_ret = inet_addr_type(net, addr->sin_addr.s_addr);
+
+		if (addr->sin_addr.s_addr == htonl(INADDR_ANY))
+			chk_addr_ret = RTN_LOCAL;
+
+		if ((sysctl_ip_nonlocal_bind == 0 &&
+		    isk->freebind == 0 && isk->transparent == 0 &&
+		     chk_addr_ret != RTN_LOCAL) ||
+		    chk_addr_ret == RTN_MULTICAST ||
+		    chk_addr_ret == RTN_BROADCAST)
+			return -EADDRNOTAVAIL;
+
+#if IS_ENABLED(CONFIG_IPV6)
+	} else if (sk->sk_family == AF_INET6) {
+		struct sockaddr_in6 *addr = (struct sockaddr_in6 *) uaddr;
+		int addr_type, scoped, has_addr;
+		struct net_device *dev = NULL;
+
+		if (addr_len < sizeof(*addr))
+			return -EINVAL;
+
+		pr_debug("ping_check_bind_addr(sk=%p,addr=%pI6c,port=%d)\n",
+			 sk, addr->sin6_addr.s6_addr, ntohs(addr->sin6_port));
+
+		addr_type = ipv6_addr_type(&addr->sin6_addr);
+		scoped = __ipv6_addr_needs_scope_id(addr_type);
+		if ((addr_type != IPV6_ADDR_ANY &&
+		     !(addr_type & IPV6_ADDR_UNICAST)) ||
+		    (scoped && !addr->sin6_scope_id))
+			return -EINVAL;
+
+		rcu_read_lock();
+		if (addr->sin6_scope_id) {
+			dev = dev_get_by_index_rcu(net, addr->sin6_scope_id);
+			if (!dev) {
+				rcu_read_unlock();
+				return -ENODEV;
+			}
+		}
+		has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev,
+						    scoped);
+		rcu_read_unlock();
+
+		if (!(isk->freebind || isk->transparent || has_addr ||
+		      addr_type == IPV6_ADDR_ANY))
+			return -EADDRNOTAVAIL;
+
+		if (scoped)
+			sk->sk_bound_dev_if = addr->sin6_scope_id;
+#endif
+	} else {
+		return -EAFNOSUPPORT;
+	}
+	return 0;
+}
 
+void ping_set_saddr(struct sock *sk, struct sockaddr *saddr)
+{
+	if (saddr->sa_family == AF_INET) {
+		struct inet_sock *isk = inet_sk(sk);
+		struct sockaddr_in *addr = (struct sockaddr_in *) saddr;
+		isk->inet_rcv_saddr = isk->inet_saddr = addr->sin_addr.s_addr;
+#if IS_ENABLED(CONFIG_IPV6)
+	} else if (saddr->sa_family == AF_INET6) {
+		struct sockaddr_in6 *addr = (struct sockaddr_in6 *) saddr;
+		struct ipv6_pinfo *np = inet6_sk(sk);
+		np->rcv_saddr = np->saddr = addr->sin6_addr;
+#endif
+	}
+}
+
+void ping_clear_saddr(struct sock *sk, int dif)
+{
+	sk->sk_bound_dev_if = dif;
+	if (sk->sk_family == AF_INET) {
+		struct inet_sock *isk = inet_sk(sk);
+		isk->inet_rcv_saddr = isk->inet_saddr = 0;
+#if IS_ENABLED(CONFIG_IPV6)
+	} else if (sk->sk_family == AF_INET6) {
+		struct ipv6_pinfo *np = inet6_sk(sk);
+		memset(&np->rcv_saddr, 0, sizeof(np->rcv_saddr));
+		memset(&np->saddr, 0, sizeof(np->saddr));
+#endif
+	}
+}
 /*
  * We need our own bind because there are no privileged id's == local ports.
  * Moreover, we don't allow binding to multi- and broadcast addresses.
  */
 
-static int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
+int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 {
-	struct sockaddr_in *addr = (struct sockaddr_in *)uaddr;
 	struct inet_sock *isk = inet_sk(sk);
 	unsigned short snum;
-	int chk_addr_ret;
 	int err;
+	int dif = sk->sk_bound_dev_if;
 
-	if (addr_len < sizeof(struct sockaddr_in))
-		return -EINVAL;
-
-	pr_debug("ping_v4_bind(sk=%p,sa_addr=%08x,sa_port=%d)\n",
-		 sk, addr->sin_addr.s_addr, ntohs(addr->sin_port));
-
-	chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
-	if (addr->sin_addr.s_addr == htonl(INADDR_ANY))
-		chk_addr_ret = RTN_LOCAL;
-
-	if ((sysctl_ip_nonlocal_bind == 0 &&
-	    isk->freebind == 0 && isk->transparent == 0 &&
-	     chk_addr_ret != RTN_LOCAL) ||
-	    chk_addr_ret == RTN_MULTICAST ||
-	    chk_addr_ret == RTN_BROADCAST)
-		return -EADDRNOTAVAIL;
+	err = ping_check_bind_addr(sk, isk, uaddr, addr_len);
+	if (err)
+		return err;
 
 	lock_sock(sk);
 
@@ -272,42 +404,50 @@ static int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 		goto out;
 
 	err = -EADDRINUSE;
-	isk->inet_rcv_saddr = isk->inet_saddr = addr->sin_addr.s_addr;
-	snum = ntohs(addr->sin_port);
-	if (ping_v4_get_port(sk, snum) != 0) {
-		isk->inet_saddr = isk->inet_rcv_saddr = 0;
+	ping_set_saddr(sk, uaddr);
+	snum = ntohs(((struct sockaddr_in *)uaddr)->sin_port);
+	if (ping_get_port(sk, snum) != 0) {
+		ping_clear_saddr(sk, dif);
 		goto out;
 	}
 
-	pr_debug("after bind(): num = %d, daddr = %pI4, dif = %d\n",
+	pr_debug("after bind(): num = %d, dif = %d\n",
 		 (int)isk->inet_num,
-		 &isk->inet_rcv_saddr,
 		 (int)sk->sk_bound_dev_if);
 
 	err = 0;
-	if (isk->inet_rcv_saddr)
+	if ((sk->sk_family == AF_INET && isk->inet_rcv_saddr) ||
+	    (sk->sk_family == AF_INET6 &&
+	     !ipv6_addr_any(&inet6_sk(sk)->rcv_saddr)))
 		sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
+
 	if (snum)
 		sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
 	isk->inet_sport = htons(isk->inet_num);
 	isk->inet_daddr = 0;
 	isk->inet_dport = 0;
+
+#if IS_ENABLED(CONFIG_IPV6)
+	if (sk->sk_family == AF_INET6)
+		memset(&inet6_sk(sk)->daddr, 0, sizeof(inet6_sk(sk)->daddr));
+#endif
+
 	sk_dst_reset(sk);
 out:
 	release_sock(sk);
 	pr_debug("ping_v4_bind -> %d\n", err);
 	return err;
 }
+EXPORT_SYMBOL_GPL(ping_bind);
 
 /*
  * Is this a supported type of ICMP message?
  */
 
-static inline int ping_supported(int type, int code)
+static inline int ping_supported(int family, int type, int code)
 {
-	if (type == ICMP_ECHO && code == 0)
-		return 1;
-	return 0;
+	return (family == AF_INET && type == ICMP_ECHO && code == 0) ||
+	       (family == AF_INET6 && type == ICMPV6_ECHO_REQUEST && code == 0);
 }
 
 /*
@@ -315,30 +455,42 @@ static inline int ping_supported(int type, int code)
  * sort of error condition.
  */
 
-static int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
-
-void ping_err(struct sk_buff *skb, u32 info)
+void ping_err(struct sk_buff *skb, int offset, u32 info)
 {
-	struct iphdr *iph = (struct iphdr *)skb->data;
-	struct icmphdr *icmph = (struct icmphdr *)(skb->data+(iph->ihl<<2));
+	int family;
+	struct icmphdr *icmph;
 	struct inet_sock *inet_sock;
-	int type = icmp_hdr(skb)->type;
-	int code = icmp_hdr(skb)->code;
+	int type;
+	int code;
 	struct net *net = dev_net(skb->dev);
 	struct sock *sk;
 	int harderr;
 	int err;
 
+	if (skb->protocol == htons(ETH_P_IP)) {
+		family = AF_INET;
+		type = icmp_hdr(skb)->type;
+		code = icmp_hdr(skb)->code;
+		icmph = (struct icmphdr *)(skb->data + offset);
+	} else if (skb->protocol == htons(ETH_P_IPV6)) {
+		family = AF_INET6;
+		type = icmp6_hdr(skb)->icmp6_type;
+		code = icmp6_hdr(skb)->icmp6_code;
+		icmph = (struct icmphdr *) (skb->data + offset);
+	} else {
+		BUG();
+	}
+
 	/* We assume the packet has already been checked by icmp_unreach */
 
-	if (!ping_supported(icmph->type, icmph->code))
+	if (!ping_supported(family, icmph->type, icmph->code))
 		return;
 
-	pr_debug("ping_err(type=%04x,code=%04x,id=%04x,seq=%04x)\n", type,
-		 code, ntohs(icmph->un.echo.id), ntohs(icmph->un.echo.sequence));
+	pr_debug("ping_err(proto=0x%x,type=%d,code=%d,id=%04x,seq=%04x)\n",
+		 skb->protocol, type, code, ntohs(icmph->un.echo.id),
+		 ntohs(icmph->un.echo.sequence));
 
-	sk = ping_v4_lookup(net, iph->daddr, iph->saddr,
-			    ntohs(icmph->un.echo.id), skb->dev->ifindex);
+	sk = ping_lookup(net, skb, ntohs(icmph->un.echo.id));
 	if (sk == NULL) {
 		pr_debug("no socket, dropping\n");
 		return;	/* No socket for error */
@@ -349,72 +501,83 @@ void ping_err(struct sk_buff *skb, u32 info)
 	harderr = 0;
 	inet_sock = inet_sk(sk);
 
-	switch (type) {
-	default:
-	case ICMP_TIME_EXCEEDED:
-		err = EHOSTUNREACH;
-		break;
-	case ICMP_SOURCE_QUENCH:
-		/* This is not a real error but ping wants to see it.
-		 * Report it with some fake errno. */
-		err = EREMOTEIO;
-		break;
-	case ICMP_PARAMETERPROB:
-		err = EPROTO;
-		harderr = 1;
-		break;
-	case ICMP_DEST_UNREACH:
-		if (code == ICMP_FRAG_NEEDED) { /* Path MTU discovery */
-			ipv4_sk_update_pmtu(skb, sk, info);
-			if (inet_sock->pmtudisc != IP_PMTUDISC_DONT) {
-				err = EMSGSIZE;
-				harderr = 1;
-				break;
+	if (skb->protocol == htons(ETH_P_IP)) {
+		switch (type) {
+		default:
+		case ICMP_TIME_EXCEEDED:
+			err = EHOSTUNREACH;
+			break;
+		case ICMP_SOURCE_QUENCH:
+			/* This is not a real error but ping wants to see it.
+			 * Report it with some fake errno.
+			 */
+			err = EREMOTEIO;
+			break;
+		case ICMP_PARAMETERPROB:
+			err = EPROTO;
+			harderr = 1;
+			break;
+		case ICMP_DEST_UNREACH:
+			if (code == ICMP_FRAG_NEEDED) { /* Path MTU discovery */
+				ipv4_sk_update_pmtu(skb, sk, info);
+				if (inet_sock->pmtudisc != IP_PMTUDISC_DONT) {
+					err = EMSGSIZE;
+					harderr = 1;
+					break;
+				}
+				goto out;
 			}
-			goto out;
-		}
-		err = EHOSTUNREACH;
-		if (code <= NR_ICMP_UNREACH) {
-			harderr = icmp_err_convert[code].fatal;
-			err = icmp_err_convert[code].errno;
+			err = EHOSTUNREACH;
+			if (code <= NR_ICMP_UNREACH) {
+				harderr = icmp_err_convert[code].fatal;
+				err = icmp_err_convert[code].errno;
+			}
+			break;
+		case ICMP_REDIRECT:
+			/* See ICMP_SOURCE_QUENCH */
+			ipv4_sk_redirect(skb, sk);
+			err = EREMOTEIO;
+			break;
 		}
-		break;
-	case ICMP_REDIRECT:
-		/* See ICMP_SOURCE_QUENCH */
-		ipv4_sk_redirect(skb, sk);
-		err = EREMOTEIO;
-		break;
+#if IS_ENABLED(CONFIG_IPV6)
+	} else if (skb->protocol == htons(ETH_P_IPV6)) {
+		harderr = pingv6_ops.icmpv6_err_convert(type, code, &err);
+#endif
 	}
 
 	/*
 	 *      RFC1122: OK.  Passes ICMP errors back to application, as per
 	 *	4.1.3.3.
 	 */
-	if (!inet_sock->recverr) {
+	if ((family == AF_INET && !inet_sock->recverr) ||
+	    (family == AF_INET6 && !inet6_sk(sk)->recverr)) {
 		if (!harderr || sk->sk_state != TCP_ESTABLISHED)
 			goto out;
 	} else {
-		ip_icmp_error(sk, skb, err, 0 /* no remote port */,
-			 info, (u8 *)icmph);
+		if (family == AF_INET) {
+			ip_icmp_error(sk, skb, err, 0 /* no remote port */,
+				      info, (u8 *)icmph);
+#if IS_ENABLED(CONFIG_IPV6)
+		} else if (family == AF_INET6) {
+			pingv6_ops.ipv6_icmp_error(sk, skb, err, 0,
+						   info, (u8 *)icmph);
+#endif
+		}
 	}
 	sk->sk_err = err;
 	sk->sk_error_report(sk);
 out:
 	sock_put(sk);
 }
+EXPORT_SYMBOL_GPL(ping_err);
 
 /*
- *	Copy and checksum an ICMP Echo packet from user space into a buffer.
+ *	Copy and checksum an ICMP Echo packet from user space into a buffer
+ *	starting from the payload.
  */
 
-struct pingfakehdr {
-	struct icmphdr icmph;
-	struct iovec *iov;
-	__wsum wcheck;
-};
-
-static int ping_getfrag(void *from, char *to,
-			int offset, int fraglen, int odd, struct sk_buff *skb)
+int ping_getfrag(void *from, char *to,
+		 int offset, int fraglen, int odd, struct sk_buff *skb)
 {
 	struct pingfakehdr *pfh = (struct pingfakehdr *)from;
 
@@ -425,20 +588,33 @@ static int ping_getfrag(void *from, char *to,
 			    pfh->iov, 0, fraglen - sizeof(struct icmphdr),
 			    &pfh->wcheck))
 			return -EFAULT;
+	} else if (offset < sizeof(struct icmphdr)) {
+			BUG();
+	} else {
+		if (csum_partial_copy_fromiovecend
+				(to, pfh->iov, offset - sizeof(struct icmphdr),
+				 fraglen, &pfh->wcheck))
+			return -EFAULT;
+	}
 
-		return 0;
+#if IS_ENABLED(CONFIG_IPV6)
+	/* For IPv6, checksum each skb as we go along, as expected by
+	 * icmpv6_push_pending_frames. For IPv4, accumulate the checksum in
+	 * wcheck, it will be finalized in ping_v4_push_pending_frames.
+	 */
+	if (pfh->family == AF_INET6) {
+		skb->csum = pfh->wcheck;
+		skb->ip_summed = CHECKSUM_NONE;
+		pfh->wcheck = 0;
 	}
-	if (offset < sizeof(struct icmphdr))
-		BUG();
-	if (csum_partial_copy_fromiovecend
-			(to, pfh->iov, offset - sizeof(struct icmphdr),
-			 fraglen, &pfh->wcheck))
-		return -EFAULT;
+#endif
+
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ping_getfrag);
 
-static int ping_push_pending_frames(struct sock *sk, struct pingfakehdr *pfh,
-				    struct flowi4 *fl4)
+static int ping_v4_push_pending_frames(struct sock *sk, struct pingfakehdr *pfh,
+				       struct flowi4 *fl4)
 {
 	struct sk_buff *skb = skb_peek(&sk->sk_write_queue);
 
@@ -450,24 +626,9 @@ static int ping_push_pending_frames(struct sock *sk, struct pingfakehdr *pfh,
 	return ip_push_pending_frames(sk, fl4);
 }
 
-static int ping_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
-			size_t len)
-{
-	struct net *net = sock_net(sk);
-	struct flowi4 fl4;
-	struct inet_sock *inet = inet_sk(sk);
-	struct ipcm_cookie ipc;
-	struct icmphdr user_icmph;
-	struct pingfakehdr pfh;
-	struct rtable *rt = NULL;
-	struct ip_options_data opt_copy;
-	int free = 0;
-	__be32 saddr, daddr, faddr;
-	u8  tos;
-	int err;
-
-	pr_debug("ping_sendmsg(sk=%p,sk->num=%u)\n", inet, inet->inet_num);
-
+int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
+			void *user_icmph, size_t icmph_len) {
+	u8 type, code;
 
 	if (len > 0xFFFF)
 		return -EMSGSIZE;
@@ -482,15 +643,53 @@ static int ping_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	/*
 	 *	Fetch the ICMP header provided by the userland.
-	 *	iovec is modified!
+	 *	iovec is modified! The ICMP header is consumed.
 	 */
-
-	if (memcpy_fromiovec((u8 *)&user_icmph, msg->msg_iov,
-			     sizeof(struct icmphdr)))
+	if (memcpy_fromiovec(user_icmph, msg->msg_iov, icmph_len))
 		return -EFAULT;
-	if (!ping_supported(user_icmph.type, user_icmph.code))
+
+	if (family == AF_INET) {
+		type = ((struct icmphdr *) user_icmph)->type;
+		code = ((struct icmphdr *) user_icmph)->code;
+#if IS_ENABLED(CONFIG_IPV6)
+	} else if (family == AF_INET6) {
+		type = ((struct icmp6hdr *) user_icmph)->icmp6_type;
+		code = ((struct icmp6hdr *) user_icmph)->icmp6_code;
+#endif
+	} else {
+		BUG();
+	}
+
+	if (!ping_supported(family, type, code))
 		return -EINVAL;
 
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ping_common_sendmsg);
+
+int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		    size_t len)
+{
+	struct net *net = sock_net(sk);
+	struct flowi4 fl4;
+	struct inet_sock *inet = inet_sk(sk);
+	struct ipcm_cookie ipc;
+	struct icmphdr user_icmph;
+	struct pingfakehdr pfh;
+	struct rtable *rt = NULL;
+	struct ip_options_data opt_copy;
+	int free = 0;
+	__be32 saddr, daddr, faddr;
+	u8  tos;
+	int err;
+
+	pr_debug("ping_v4_sendmsg(sk=%p,sk->num=%u)\n", inet, inet->inet_num);
+
+	err = ping_common_sendmsg(AF_INET, msg, len, &user_icmph,
+				  sizeof(user_icmph));
+	if (err)
+		return err;
+
 	/*
 	 *	Get and verify the address.
 	 */
@@ -595,13 +794,14 @@ back_from_confirm:
 	pfh.icmph.un.echo.sequence = user_icmph.un.echo.sequence;
 	pfh.iov = msg->msg_iov;
 	pfh.wcheck = 0;
+	pfh.family = AF_INET;
 
 	err = ip_append_data(sk, &fl4, ping_getfrag, &pfh, len,
 			0, &ipc, &rt, msg->msg_flags);
 	if (err)
 		ip_flush_pending_frames(sk);
 	else
-		err = ping_push_pending_frames(sk, &pfh, &fl4);
+		err = ping_v4_push_pending_frames(sk, &pfh, &fl4);
 	release_sock(sk);
 
 out:
@@ -622,11 +822,13 @@ do_confirm:
 	goto out;
 }
 
-static int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
-			size_t len, int noblock, int flags, int *addr_len)
+int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		 size_t len, int noblock, int flags, int *addr_len)
 {
 	struct inet_sock *isk = inet_sk(sk);
-	struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
+	int family = sk->sk_family;
+	struct sockaddr_in *sin;
+	struct sockaddr_in6 *sin6;
 	struct sk_buff *skb;
 	int copied, err;
 
@@ -636,11 +838,22 @@ static int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	if (flags & MSG_OOB)
 		goto out;
 
-	if (addr_len)
-		*addr_len = sizeof(*sin);
+	if (addr_len) {
+		if (family == AF_INET)
+			*addr_len = sizeof(*sin);
+		else if (family == AF_INET6 && addr_len)
+			*addr_len = sizeof(*sin6);
+	}
 
-	if (flags & MSG_ERRQUEUE)
-		return ip_recv_error(sk, msg, len);
+	if (flags & MSG_ERRQUEUE) {
+		if (family == AF_INET) {
+			return ip_recv_error(sk, msg, len);
+#if IS_ENABLED(CONFIG_IPV6)
+		} else if (family == AF_INET6) {
+			return pingv6_ops.ipv6_recv_error(sk, msg, len);
+#endif
+		}
+	}
 
 	skb = skb_recv_datagram(sk, flags, noblock, &err);
 	if (!skb)
@@ -659,15 +872,40 @@ static int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	sock_recv_timestamp(msg, sk, skb);
 
-	/* Copy the address. */
-	if (sin) {
+	/* Copy the address and add cmsg data. */
+	if (family == AF_INET) {
+		sin = (struct sockaddr_in *) msg->msg_name;
 		sin->sin_family = AF_INET;
 		sin->sin_port = 0 /* skb->h.uh->source */;
 		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
 		memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
+
+		if (isk->cmsg_flags)
+			ip_cmsg_recv(msg, skb);
+
+#if IS_ENABLED(CONFIG_IPV6)
+	} else if (family == AF_INET6) {
+		struct ipv6_pinfo *np = inet6_sk(sk);
+		struct ipv6hdr *ip6 = ipv6_hdr(skb);
+		sin6 = (struct sockaddr_in6 *) msg->msg_name;
+		sin6->sin6_family = AF_INET6;
+		sin6->sin6_port = 0;
+		sin6->sin6_addr = ip6->saddr;
+
+		if (np->sndflow)
+			sin6->sin6_flowinfo = ip6_flowinfo(ip6);
+
+		if (__ipv6_addr_needs_scope_id(
+		    ipv6_addr_type(&sin6->sin6_addr)))
+			sin6->sin6_scope_id = IP6CB(skb)->iif;
+
+		if (inet6_sk(sk)->rxopt.all)
+			pingv6_ops.ip6_datagram_recv_ctl(sk, msg, skb);
+#endif
+	} else {
+		BUG();
 	}
-	if (isk->cmsg_flags)
-		ip_cmsg_recv(msg, skb);
+
 	err = copied;
 
 done:
@@ -676,8 +914,9 @@ out:
 	pr_debug("ping_recvmsg -> %d\n", err);
 	return err;
 }
+EXPORT_SYMBOL_GPL(ping_recvmsg);
 
-static int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
+int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	pr_debug("ping_queue_rcv_skb(sk=%p,sk->num=%d,skb=%p)\n",
 		 inet_sk(sk), inet_sk(sk)->inet_num, skb);
@@ -688,6 +927,7 @@ static int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 	}
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ping_queue_rcv_skb);
 
 
 /*
@@ -698,10 +938,7 @@ void ping_rcv(struct sk_buff *skb)
 {
 	struct sock *sk;
 	struct net *net = dev_net(skb->dev);
-	struct iphdr *iph = ip_hdr(skb);
 	struct icmphdr *icmph = icmp_hdr(skb);
-	__be32 saddr = iph->saddr;
-	__be32 daddr = iph->daddr;
 
 	/* We assume the packet has already been checked by icmp_rcv */
 
@@ -711,8 +948,7 @@ void ping_rcv(struct sk_buff *skb)
 	/* Push ICMP header back */
 	skb_push(skb, skb->data - (u8 *)icmph);
 
-	sk = ping_v4_lookup(net, saddr, daddr, ntohs(icmph->un.echo.id),
-			    skb->dev->ifindex);
+	sk = ping_lookup(net, skb, ntohs(icmph->un.echo.id));
 	if (sk != NULL) {
 		pr_debug("rcv on socket %p\n", sk);
 		ping_queue_rcv_skb(sk, skb_get(skb));
@@ -723,6 +959,7 @@ void ping_rcv(struct sk_buff *skb)
 
 	/* We're called from icmp_rcv(). kfree_skb() is done there. */
 }
+EXPORT_SYMBOL_GPL(ping_rcv);
 
 struct proto ping_prot = {
 	.name =		"PING",
@@ -733,14 +970,14 @@ struct proto ping_prot = {
 	.disconnect =	udp_disconnect,
 	.setsockopt =	ip_setsockopt,
 	.getsockopt =	ip_getsockopt,
-	.sendmsg =	ping_sendmsg,
+	.sendmsg =	ping_v4_sendmsg,
 	.recvmsg =	ping_recvmsg,
 	.bind =		ping_bind,
 	.backlog_rcv =	ping_queue_rcv_skb,
 	.release_cb =	ip4_datagram_release_cb,
-	.hash =		ping_v4_hash,
-	.unhash =	ping_v4_unhash,
-	.get_port =	ping_v4_get_port,
+	.hash =		ping_hash,
+	.unhash =	ping_unhash,
+	.get_port =	ping_get_port,
 	.obj_size =	sizeof(struct inet_sock),
 };
 EXPORT_SYMBOL(ping_prot);
diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index 9af088d..470a9c0 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -7,7 +7,7 @@ obj-$(CONFIG_IPV6) += ipv6.o
 ipv6-objs :=	af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o \
 		addrlabel.o \
 		route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o udplite.o \
-		raw.o icmp.o mcast.o reassembly.o tcp_ipv6.o \
+		raw.o icmp.o mcast.o reassembly.o tcp_ipv6.o ping.o \
 		exthdrs.o datagram.o ip6_flowlabel.o inet6_connection_sock.o
 
 ipv6-offload :=	ip6_offload.o tcpv6_offload.o udp_offload.o exthdrs_offload.o
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index ab5c7ad..a5ac969 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -49,6 +49,7 @@
 #include <net/udp.h>
 #include <net/udplite.h>
 #include <net/tcp.h>
+#include <net/ping.h>
 #include <net/protocol.h>
 #include <net/inet_common.h>
 #include <net/route.h>
@@ -840,6 +841,9 @@ static int __init inet6_init(void)
 	if (err)
 		goto out_unregister_udplite_proto;
 
+	err = proto_register(&pingv6_prot, 1);
+	if (err)
+		goto out_unregister_ping_proto;
 
 	/* We MUST register RAW sockets before we create the ICMP6,
 	 * IGMP6, or NDISC control sockets.
@@ -930,6 +934,10 @@ static int __init inet6_init(void)
 	if (err)
 		goto ipv6_packet_fail;
 
+	err = pingv6_init();
+	if (err)
+		goto pingv6_fail;
+
 #ifdef CONFIG_SYSCTL
 	err = ipv6_sysctl_register();
 	if (err)
@@ -942,6 +950,8 @@ out:
 sysctl_fail:
 	ipv6_packet_cleanup();
 #endif
+pingv6_fail:
+	pingv6_exit();
 ipv6_packet_fail:
 	tcpv6_exit();
 tcpv6_fail:
@@ -985,6 +995,8 @@ register_pernet_fail:
 	rtnl_unregister_all(PF_INET6);
 out_sock_register_fail:
 	rawv6_exit();
+out_unregister_ping_proto:
+	proto_unregister(&pingv6_prot);
 out_unregister_raw_proto:
 	proto_unregister(&rawv6_prot);
 out_unregister_udplite_proto:
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index b4ff0a4..1d2902e 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -57,6 +57,7 @@
 
 #include <net/ipv6.h>
 #include <net/ip6_checksum.h>
+#include <net/ping.h>
 #include <net/protocol.h>
 #include <net/raw.h>
 #include <net/rawv6.h>
@@ -84,12 +85,18 @@ static inline struct sock *icmpv6_sk(struct net *net)
 static void icmpv6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		       u8 type, u8 code, int offset, __be32 info)
 {
+	/* icmpv6_notify checks 8 bytes can be pulled, icmp6hdr is 8 bytes */
+	struct icmp6hdr *icmp6 = (struct icmp6hdr *) (skb->data + offset);
 	struct net *net = dev_net(skb->dev);
 
 	if (type == ICMPV6_PKT_TOOBIG)
 		ip6_update_pmtu(skb, net, info, 0, 0);
 	else if (type == NDISC_REDIRECT)
 		ip6_redirect(skb, net, 0, 0);
+
+	if (!(type & ICMPV6_INFOMSG_MASK))
+		if (icmp6->icmp6_type == ICMPV6_ECHO_REQUEST)
+			ping_err(skb, offset, info);
 }
 
 static int icmpv6_rcv(struct sk_buff *skb);
@@ -224,7 +231,8 @@ static bool opt_unrec(struct sk_buff *skb, __u32 offset)
 	return (*op & 0xC0) == 0x80;
 }
 
-static int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6, struct icmp6hdr *thdr, int len)
+int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
+			       struct icmp6hdr *thdr, int len)
 {
 	struct sk_buff *skb;
 	struct icmp6hdr *icmp6h;
@@ -307,8 +315,8 @@ static void mip6_addr_swap(struct sk_buff *skb)
 static inline void mip6_addr_swap(struct sk_buff *skb) {}
 #endif
 
-static struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *skb,
-					     struct sock *sk, struct flowi6 *fl6)
+struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *skb,
+				      struct sock *sk, struct flowi6 *fl6)
 {
 	struct dst_entry *dst, *dst2;
 	struct flowi6 fl2;
@@ -697,7 +705,8 @@ static int icmpv6_rcv(struct sk_buff *skb)
 		skb->csum = ~csum_unfold(csum_ipv6_magic(saddr, daddr, skb->len,
 					     IPPROTO_ICMPV6, 0));
 		if (__skb_checksum_complete(skb)) {
-			LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 checksum failed [%pI6 > %pI6]\n",
+			LIMIT_NETDEBUG(KERN_DEBUG
+				       "ICMPv6 checksum failed [%pI6c > %pI6c]\n",
 				       saddr, daddr);
 			goto csum_error;
 		}
@@ -718,7 +727,7 @@ static int icmpv6_rcv(struct sk_buff *skb)
 		break;
 
 	case ICMPV6_ECHO_REPLY:
-		/* we couldn't care less */
+		ping_rcv(skb);
 		break;
 
 	case ICMPV6_PKT_TOOBIG:
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
new file mode 100644
index 0000000..a6462d6
--- /dev/null
+++ b/net/ipv6/ping.c
@@ -0,0 +1,216 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		"Ping" sockets
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ *
+ * Based on ipv4/ping.c code.
+ *
+ * Authors:	Lorenzo Colitti (IPv6 support)
+ *		Vasiliy Kulikov / Openwall (IPv4 implementation, for Linux 2.6),
+ *		Pavel Kankovsky (IPv4 implementation, for Linux 2.4.32)
+ *
+ */
+
+#include <net/addrconf.h>
+#include <net/ipv6.h>
+#include <net/ip6_route.h>
+#include <net/protocol.h>
+#include <net/udp.h>
+#include <net/transp_v6.h>
+#include <net/ping.h>
+
+struct proto pingv6_prot = {
+	.name =		"PINGv6",
+	.owner =	THIS_MODULE,
+	.init =		ping_init_sock,
+	.close =	ping_close,
+	.connect =	ip6_datagram_connect,
+	.disconnect =	udp_disconnect,
+	.setsockopt =	ipv6_setsockopt,
+	.getsockopt =	ipv6_getsockopt,
+	.sendmsg =	ping_v6_sendmsg,
+	.recvmsg =	ping_recvmsg,
+	.bind =		ping_bind,
+	.backlog_rcv =	ping_queue_rcv_skb,
+	.hash =		ping_hash,
+	.unhash =	ping_unhash,
+	.get_port =	ping_get_port,
+	.obj_size =	sizeof(struct raw6_sock),
+};
+EXPORT_SYMBOL_GPL(pingv6_prot);
+
+static struct inet_protosw pingv6_protosw = {
+	.type =      SOCK_DGRAM,
+	.protocol =  IPPROTO_ICMPV6,
+	.prot =      &pingv6_prot,
+	.ops =       &inet6_dgram_ops,
+	.no_check =  UDP_CSUM_DEFAULT,
+	.flags =     INET_PROTOSW_REUSE,
+};
+
+
+/* Compatibility glue so we can support IPv6 when it's compiled as a module */
+int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
+{
+	return -EAFNOSUPPORT;
+}
+int dummy_ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg,
+				 struct sk_buff *skb)
+{
+	return -EAFNOSUPPORT;
+}
+int dummy_icmpv6_err_convert(u8 type, u8 code, int *err)
+{
+	return -EAFNOSUPPORT;
+}
+void dummy_ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
+			    __be16 port, u32 info, u8 *payload) {}
+int dummy_ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
+			struct net_device *dev, int strict)
+{
+	return 0;
+}
+
+int __init pingv6_init(void)
+{
+	pingv6_ops.ipv6_recv_error = ipv6_recv_error;
+	pingv6_ops.ip6_datagram_recv_ctl = ip6_datagram_recv_ctl;
+	pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
+	pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
+	pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
+	return inet6_register_protosw(&pingv6_protosw);
+}
+
+/* This never gets called because it's not possible to unload the ipv6 module,
+ * but just in case.
+ */
+void pingv6_exit(void)
+{
+	pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
+	pingv6_ops.ip6_datagram_recv_ctl = dummy_ip6_datagram_recv_ctl;
+	pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
+	pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
+	pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
+	inet6_unregister_protosw(&pingv6_protosw);
+}
+
+int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		    size_t len)
+{
+	struct inet_sock *inet = inet_sk(sk);
+	struct ipv6_pinfo *np = inet6_sk(sk);
+	struct icmp6hdr user_icmph;
+	int addr_type;
+	struct in6_addr *daddr;
+	int iif = 0;
+	struct flowi6 fl6;
+	int err;
+	int hlimit;
+	struct dst_entry *dst;
+	struct rt6_info *rt;
+	struct pingfakehdr pfh;
+
+	pr_debug("ping_v6_sendmsg(sk=%p,sk->num=%u)\n", inet, inet->inet_num);
+
+	err = ping_common_sendmsg(AF_INET6, msg, len, &user_icmph,
+				  sizeof(user_icmph));
+	if (err)
+		return err;
+
+	if (msg->msg_name) {
+		struct sockaddr_in6 *u = (struct sockaddr_in6 *) msg->msg_name;
+		if (msg->msg_namelen < sizeof(struct sockaddr_in6) ||
+		    u->sin6_family != AF_INET6) {
+			return -EINVAL;
+		}
+		if (sk->sk_bound_dev_if &&
+		    sk->sk_bound_dev_if != u->sin6_scope_id) {
+			return -EINVAL;
+		}
+		daddr = &(u->sin6_addr);
+		iif = u->sin6_scope_id;
+	} else {
+		if (sk->sk_state != TCP_ESTABLISHED)
+			return -EDESTADDRREQ;
+		daddr = &np->daddr;
+	}
+
+	if (!iif)
+		iif = sk->sk_bound_dev_if;
+
+	addr_type = ipv6_addr_type(daddr);
+	if (__ipv6_addr_needs_scope_id(addr_type) && !iif)
+		return -EINVAL;
+	if (addr_type & IPV6_ADDR_MAPPED)
+		return -EINVAL;
+
+	/* TODO: use ip6_datagram_send_ctl to get options from cmsg */
+
+	memset(&fl6, 0, sizeof(fl6));
+
+	fl6.flowi6_proto = IPPROTO_ICMPV6;
+	fl6.saddr = np->saddr;
+	fl6.daddr = *daddr;
+	fl6.fl6_icmp_type = user_icmph.icmp6_type;
+	fl6.fl6_icmp_code = user_icmph.icmp6_code;
+	security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
+
+	if (!fl6.flowi6_oif && ipv6_addr_is_multicast(&fl6.daddr))
+		fl6.flowi6_oif = np->mcast_oif;
+	else if (!fl6.flowi6_oif)
+		fl6.flowi6_oif = np->ucast_oif;
+
+	dst = ip6_sk_dst_lookup_flow(sk, &fl6,  daddr, 1);
+	if (IS_ERR(dst))
+		return PTR_ERR(dst);
+	rt = (struct rt6_info *) dst;
+
+	np = inet6_sk(sk);
+	if (!np)
+		return -EBADF;
+
+	if (!fl6.flowi6_oif && ipv6_addr_is_multicast(&fl6.daddr))
+		fl6.flowi6_oif = np->mcast_oif;
+	else if (!fl6.flowi6_oif)
+		fl6.flowi6_oif = np->ucast_oif;
+
+	pfh.icmph.type = user_icmph.icmp6_type;
+	pfh.icmph.code = user_icmph.icmp6_code;
+	pfh.icmph.checksum = 0;
+	pfh.icmph.un.echo.id = inet->inet_sport;
+	pfh.icmph.un.echo.sequence = user_icmph.icmp6_sequence;
+	pfh.iov = msg->msg_iov;
+	pfh.wcheck = 0;
+	pfh.family = AF_INET6;
+
+	if (ipv6_addr_is_multicast(&fl6.daddr))
+		hlimit = np->mcast_hops;
+	else
+		hlimit = np->hop_limit;
+	if (hlimit < 0)
+		hlimit = ip6_dst_hoplimit(dst);
+
+	err = ip6_append_data(sk, ping_getfrag, &pfh, len,
+			      0, hlimit,
+			      np->tclass, NULL, &fl6, rt,
+			      MSG_DONTWAIT, np->dontfrag);
+
+	if (err) {
+		ICMP6_INC_STATS_BH(sock_net(sk), rt->rt6i_idev,
+				   ICMP6_MIB_OUTERRORS);
+		ip6_flush_pending_frames(sk);
+	} else {
+		err = icmpv6_push_pending_frames(sk, &fl6,
+						 (struct icmp6hdr *) &pfh.icmph,
+						 len);
+	}
+
+	return err;
+}
-- 
cgit v0.10.2


From 8513fbd880093f00a47e85a552f14ca2de8d84d6 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 23 May 2013 00:52:31 +0000
Subject: net: ethernet: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Also, unnecessary dev_set_drvdata() is removed, because the driver core
clears the driver data to NULL after device_release or on probe failure.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/aeroflex/greth.c b/drivers/net/ethernet/aeroflex/greth.c
index 2692954..7ff4b30 100644
--- a/drivers/net/ethernet/aeroflex/greth.c
+++ b/drivers/net/ethernet/aeroflex/greth.c
@@ -1565,7 +1565,7 @@ error1:
 
 static int greth_of_remove(struct platform_device *of_dev)
 {
-	struct net_device *ndev = dev_get_drvdata(&of_dev->dev);
+	struct net_device *ndev = platform_get_drvdata(of_dev);
 	struct greth_private *greth = netdev_priv(ndev);
 
 	/* Free descriptor areas */
@@ -1573,8 +1573,6 @@ static int greth_of_remove(struct platform_device *of_dev)
 
 	dma_free_coherent(&of_dev->dev, 1024, greth->tx_bd_base, greth->tx_bd_base_phys);
 
-	dev_set_drvdata(&of_dev->dev, NULL);
-
 	if (greth->phy)
 		phy_stop(greth->phy);
 	mdiobus_unregister(greth->mdio);
diff --git a/drivers/net/ethernet/amd/sunlance.c b/drivers/net/ethernet/amd/sunlance.c
index f47b780..ece5683 100644
--- a/drivers/net/ethernet/amd/sunlance.c
+++ b/drivers/net/ethernet/amd/sunlance.c
@@ -1470,7 +1470,7 @@ no_link_test:
 		goto fail;
 	}
 
-	dev_set_drvdata(&op->dev, lp);
+	platform_set_drvdata(op, lp);
 
 	printk(KERN_INFO "%s: LANCE %pM\n",
 	       dev->name, dev->dev_addr);
@@ -1501,7 +1501,7 @@ static int sunlance_sbus_probe(struct platform_device *op)
 
 static int sunlance_sbus_remove(struct platform_device *op)
 {
-	struct lance_private *lp = dev_get_drvdata(&op->dev);
+	struct lance_private *lp = platform_get_drvdata(op);
 	struct net_device *net_dev = lp->dev;
 
 	unregister_netdev(net_dev);
@@ -1510,8 +1510,6 @@ static int sunlance_sbus_remove(struct platform_device *op)
 
 	free_netdev(net_dev);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/broadcom/sb1250-mac.c b/drivers/net/ethernet/broadcom/sb1250-mac.c
index e80bfb6..c277771 100644
--- a/drivers/net/ethernet/broadcom/sb1250-mac.c
+++ b/drivers/net/ethernet/broadcom/sb1250-mac.c
@@ -2197,7 +2197,7 @@ static const struct net_device_ops sbmac_netdev_ops = {
 
 static int sbmac_init(struct platform_device *pldev, long long base)
 {
-	struct net_device *dev = dev_get_drvdata(&pldev->dev);
+	struct net_device *dev = platform_get_drvdata(pldev);
 	int idx = pldev->id;
 	struct sbmac_softc *sc = netdev_priv(dev);
 	unsigned char *eaddr;
@@ -2275,7 +2275,7 @@ static int sbmac_init(struct platform_device *pldev, long long base)
 		       dev->name);
 		goto free_mdio;
 	}
-	dev_set_drvdata(&pldev->dev, sc->mii_bus);
+	platform_set_drvdata(pldev, sc->mii_bus);
 
 	err = register_netdev(dev);
 	if (err) {
@@ -2300,7 +2300,6 @@ static int sbmac_init(struct platform_device *pldev, long long base)
 	return 0;
 unreg_mdio:
 	mdiobus_unregister(sc->mii_bus);
-	dev_set_drvdata(&pldev->dev, NULL);
 free_mdio:
 	mdiobus_free(sc->mii_bus);
 uninit_ctx:
@@ -2624,7 +2623,7 @@ static int sbmac_probe(struct platform_device *pldev)
 		goto out_unmap;
 	}
 
-	dev_set_drvdata(&pldev->dev, dev);
+	platform_set_drvdata(pldev, dev);
 	SET_NETDEV_DEV(dev, &pldev->dev);
 
 	sc = netdev_priv(dev);
@@ -2649,7 +2648,7 @@ out_out:
 
 static int __exit sbmac_remove(struct platform_device *pldev)
 {
-	struct net_device *dev = dev_get_drvdata(&pldev->dev);
+	struct net_device *dev = platform_get_drvdata(pldev);
 	struct sbmac_softc *sc = netdev_priv(dev);
 
 	unregister_netdev(dev);
diff --git a/drivers/net/ethernet/freescale/fec_mpc52xx.c b/drivers/net/ethernet/freescale/fec_mpc52xx.c
index 9bc15e2..9947765 100644
--- a/drivers/net/ethernet/freescale/fec_mpc52xx.c
+++ b/drivers/net/ethernet/freescale/fec_mpc52xx.c
@@ -981,7 +981,7 @@ static int mpc52xx_fec_probe(struct platform_device *op)
 		goto err_node;
 
 	/* We're done ! */
-	dev_set_drvdata(&op->dev, ndev);
+	platform_set_drvdata(op, ndev);
 	netdev_info(ndev, "%s MAC %pM\n",
 		    op->dev.of_node->full_name, ndev->dev_addr);
 
@@ -1010,7 +1010,7 @@ mpc52xx_fec_remove(struct platform_device *op)
 	struct net_device *ndev;
 	struct mpc52xx_fec_priv *priv;
 
-	ndev = dev_get_drvdata(&op->dev);
+	ndev = platform_get_drvdata(op);
 	priv = netdev_priv(ndev);
 
 	unregister_netdev(ndev);
@@ -1030,14 +1030,13 @@ mpc52xx_fec_remove(struct platform_device *op)
 
 	free_netdev(ndev);
 
-	dev_set_drvdata(&op->dev, NULL);
 	return 0;
 }
 
 #ifdef CONFIG_PM
 static int mpc52xx_fec_of_suspend(struct platform_device *op, pm_message_t state)
 {
-	struct net_device *dev = dev_get_drvdata(&op->dev);
+	struct net_device *dev = platform_get_drvdata(op);
 
 	if (netif_running(dev))
 		mpc52xx_fec_close(dev);
@@ -1047,7 +1046,7 @@ static int mpc52xx_fec_of_suspend(struct platform_device *op, pm_message_t state
 
 static int mpc52xx_fec_of_resume(struct platform_device *op)
 {
-	struct net_device *dev = dev_get_drvdata(&op->dev);
+	struct net_device *dev = platform_get_drvdata(op);
 
 	mpc52xx_fec_hw_init(dev);
 	mpc52xx_fec_reset_stats(dev);
diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
index edc1200..8de53a1 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
@@ -1048,7 +1048,7 @@ static int fs_enet_probe(struct platform_device *ofdev)
 	}
 
 	SET_NETDEV_DEV(ndev, &ofdev->dev);
-	dev_set_drvdata(&ofdev->dev, ndev);
+	platform_set_drvdata(ofdev, ndev);
 
 	fep = netdev_priv(ndev);
 	fep->dev = &ofdev->dev;
@@ -1106,7 +1106,6 @@ out_cleanup_data:
 	fep->ops->cleanup_data(ndev);
 out_free_dev:
 	free_netdev(ndev);
-	dev_set_drvdata(&ofdev->dev, NULL);
 out_put:
 	of_node_put(fpi->phy_node);
 out_free_fpi:
@@ -1116,7 +1115,7 @@ out_free_fpi:
 
 static int fs_enet_remove(struct platform_device *ofdev)
 {
-	struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
+	struct net_device *ndev = platform_get_drvdata(ofdev);
 	struct fs_enet_private *fep = netdev_priv(ndev);
 
 	unregister_netdev(ndev);
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
index 2bafbd3..844ecfa 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
@@ -179,7 +179,7 @@ static int fs_enet_mdio_probe(struct platform_device *ofdev)
 	}
 
 	new_bus->parent = &ofdev->dev;
-	dev_set_drvdata(&ofdev->dev, new_bus);
+	platform_set_drvdata(ofdev, new_bus);
 
 	ret = of_mdiobus_register(new_bus, ofdev->dev.of_node);
 	if (ret)
@@ -188,7 +188,6 @@ static int fs_enet_mdio_probe(struct platform_device *ofdev)
 	return 0;
 
 out_free_irqs:
-	dev_set_drvdata(&ofdev->dev, NULL);
 	kfree(new_bus->irq);
 out_unmap_regs:
 	iounmap(bitbang->dir);
@@ -202,11 +201,10 @@ out:
 
 static int fs_enet_mdio_remove(struct platform_device *ofdev)
 {
-	struct mii_bus *bus = dev_get_drvdata(&ofdev->dev);
+	struct mii_bus *bus = platform_get_drvdata(ofdev);
 	struct bb_info *bitbang = bus->priv;
 
 	mdiobus_unregister(bus);
-	dev_set_drvdata(&ofdev->dev, NULL);
 	kfree(bus->irq);
 	free_mdio_bitbang(bus);
 	iounmap(bitbang->dir);
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
index 18e8ef2..2f1c46a 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
@@ -180,7 +180,7 @@ static int fs_enet_mdio_probe(struct platform_device *ofdev)
 	}
 
 	new_bus->parent = &ofdev->dev;
-	dev_set_drvdata(&ofdev->dev, new_bus);
+	platform_set_drvdata(ofdev, new_bus);
 
 	ret = of_mdiobus_register(new_bus, ofdev->dev.of_node);
 	if (ret)
@@ -189,7 +189,6 @@ static int fs_enet_mdio_probe(struct platform_device *ofdev)
 	return 0;
 
 out_free_irqs:
-	dev_set_drvdata(&ofdev->dev, NULL);
 	kfree(new_bus->irq);
 out_unmap_regs:
 	iounmap(fec->fecp);
@@ -204,11 +203,10 @@ out:
 
 static int fs_enet_mdio_remove(struct platform_device *ofdev)
 {
-	struct mii_bus *bus = dev_get_drvdata(&ofdev->dev);
+	struct mii_bus *bus = platform_get_drvdata(ofdev);
 	struct fec_info *fec = bus->priv;
 
 	mdiobus_unregister(bus);
-	dev_set_drvdata(&ofdev->dev, NULL);
 	kfree(bus->irq);
 	iounmap(fec->fecp);
 	kfree(fec);
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 2375a01..14f0694 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -1000,7 +1000,7 @@ static int gfar_probe(struct platform_device *ofdev)
 	spin_lock_init(&priv->bflock);
 	INIT_WORK(&priv->reset_task, gfar_reset_task);
 
-	dev_set_drvdata(&ofdev->dev, priv);
+	platform_set_drvdata(ofdev, priv);
 	regs = priv->gfargrp[0].regs;
 
 	gfar_detect_errata(priv);
@@ -1240,15 +1240,13 @@ register_fail:
 
 static int gfar_remove(struct platform_device *ofdev)
 {
-	struct gfar_private *priv = dev_get_drvdata(&ofdev->dev);
+	struct gfar_private *priv = platform_get_drvdata(ofdev);
 
 	if (priv->phy_node)
 		of_node_put(priv->phy_node);
 	if (priv->tbi_node)
 		of_node_put(priv->tbi_node);
 
-	dev_set_drvdata(&ofdev->dev, NULL);
-
 	unregister_netdev(priv->ndev);
 	unmap_group_regs(priv);
 	free_gfar_dev(priv);
diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c
index 083ea2b..098f133 100644
--- a/drivers/net/ethernet/freescale/gianfar_ptp.c
+++ b/drivers/net/ethernet/freescale/gianfar_ptp.c
@@ -519,7 +519,7 @@ static int gianfar_ptp_probe(struct platform_device *dev)
 	}
 	gfar_phc_index = ptp_clock_index(etsects->clock);
 
-	dev_set_drvdata(&dev->dev, etsects);
+	platform_set_drvdata(dev, etsects);
 
 	return 0;
 
@@ -537,7 +537,7 @@ no_memory:
 
 static int gianfar_ptp_remove(struct platform_device *dev)
 {
-	struct etsects *etsects = dev_get_drvdata(&dev->dev);
+	struct etsects *etsects = platform_get_drvdata(dev);
 
 	gfar_write(&etsects->regs->tmr_temask, 0);
 	gfar_write(&etsects->regs->tmr_ctrl,   0);
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index e04c598..3c43dac 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3564,7 +3564,7 @@ static void ucc_geth_timeout(struct net_device *dev)
 
 static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
 {
-	struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
+	struct net_device *ndev = platform_get_drvdata(ofdev);
 	struct ucc_geth_private *ugeth = netdev_priv(ndev);
 
 	if (!netif_running(ndev))
@@ -3592,7 +3592,7 @@ static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
 
 static int ucc_geth_resume(struct platform_device *ofdev)
 {
-	struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
+	struct net_device *ndev = platform_get_drvdata(ofdev);
 	struct ucc_geth_private *ugeth = netdev_priv(ndev);
 	int err;
 
diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
index 418068b..c1b6e7e 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -227,7 +227,7 @@ static int xgmac_mdio_probe(struct platform_device *pdev)
 		goto err_registration;
 	}
 
-	dev_set_drvdata(&pdev->dev, bus);
+	platform_set_drvdata(pdev, bus);
 
 	return 0;
 
@@ -242,7 +242,7 @@ err_ioremap:
 
 static int xgmac_mdio_remove(struct platform_device *pdev)
 {
-	struct mii_bus *bus = dev_get_drvdata(&pdev->dev);
+	struct mii_bus *bus = platform_get_drvdata(pdev);
 
 	mdiobus_unregister(bus);
 	iounmap(bus->priv);
diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c
index 90ea0b1..0605e76 100644
--- a/drivers/net/ethernet/ibm/ehea/ehea_main.c
+++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c
@@ -3289,7 +3289,7 @@ static int ehea_probe_adapter(struct platform_device *dev,
 
 	adapter->pd = EHEA_PD_ID;
 
-	dev_set_drvdata(&dev->dev, adapter);
+	platform_set_drvdata(dev, adapter);
 
 
 	/* initialize adapter and ports */
@@ -3360,7 +3360,7 @@ out:
 
 static int ehea_remove(struct platform_device *dev)
 {
-	struct ehea_adapter *adapter = dev_get_drvdata(&dev->dev);
+	struct ehea_adapter *adapter = platform_get_drvdata(dev);
 	int i;
 
 	for (i = 0; i < EHEA_MAX_PORTS; i++)
diff --git a/drivers/net/ethernet/ibm/emac/mal.c b/drivers/net/ethernet/ibm/emac/mal.c
index 610ed223..856ea66 100644
--- a/drivers/net/ethernet/ibm/emac/mal.c
+++ b/drivers/net/ethernet/ibm/emac/mal.c
@@ -696,7 +696,7 @@ static int mal_probe(struct platform_device *ofdev)
 
 	/* Advertise this instance to the rest of the world */
 	wmb();
-	dev_set_drvdata(&ofdev->dev, mal);
+	platform_set_drvdata(ofdev, mal);
 
 	mal_dbg_register(mal);
 
@@ -722,7 +722,7 @@ static int mal_probe(struct platform_device *ofdev)
 
 static int mal_remove(struct platform_device *ofdev)
 {
-	struct mal_instance *mal = dev_get_drvdata(&ofdev->dev);
+	struct mal_instance *mal = platform_get_drvdata(ofdev);
 
 	MAL_DBG(mal, "remove" NL);
 
@@ -735,8 +735,6 @@ static int mal_remove(struct platform_device *ofdev)
 		       "mal%d: commac list is not empty on remove!\n",
 		       mal->index);
 
-	dev_set_drvdata(&ofdev->dev, NULL);
-
 	free_irq(mal->serr_irq, mal);
 	free_irq(mal->txde_irq, mal);
 	free_irq(mal->txeob_irq, mal);
diff --git a/drivers/net/ethernet/ibm/emac/rgmii.c b/drivers/net/ethernet/ibm/emac/rgmii.c
index 3925176..c47e23d 100644
--- a/drivers/net/ethernet/ibm/emac/rgmii.c
+++ b/drivers/net/ethernet/ibm/emac/rgmii.c
@@ -95,7 +95,7 @@ static inline u32 rgmii_mode_mask(int mode, int input)
 
 int rgmii_attach(struct platform_device *ofdev, int input, int mode)
 {
-	struct rgmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct rgmii_instance *dev = platform_get_drvdata(ofdev);
 	struct rgmii_regs __iomem *p = dev->base;
 
 	RGMII_DBG(dev, "attach(%d)" NL, input);
@@ -124,7 +124,7 @@ int rgmii_attach(struct platform_device *ofdev, int input, int mode)
 
 void rgmii_set_speed(struct platform_device *ofdev, int input, int speed)
 {
-	struct rgmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct rgmii_instance *dev = platform_get_drvdata(ofdev);
 	struct rgmii_regs __iomem *p = dev->base;
 	u32 ssr;
 
@@ -146,7 +146,7 @@ void rgmii_set_speed(struct platform_device *ofdev, int input, int speed)
 
 void rgmii_get_mdio(struct platform_device *ofdev, int input)
 {
-	struct rgmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct rgmii_instance *dev = platform_get_drvdata(ofdev);
 	struct rgmii_regs __iomem *p = dev->base;
 	u32 fer;
 
@@ -167,7 +167,7 @@ void rgmii_get_mdio(struct platform_device *ofdev, int input)
 
 void rgmii_put_mdio(struct platform_device *ofdev, int input)
 {
-	struct rgmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct rgmii_instance *dev = platform_get_drvdata(ofdev);
 	struct rgmii_regs __iomem *p = dev->base;
 	u32 fer;
 
@@ -188,7 +188,7 @@ void rgmii_put_mdio(struct platform_device *ofdev, int input)
 
 void rgmii_detach(struct platform_device *ofdev, int input)
 {
-	struct rgmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct rgmii_instance *dev = platform_get_drvdata(ofdev);
 	struct rgmii_regs __iomem *p;
 
 	BUG_ON(!dev || dev->users == 0);
@@ -214,7 +214,7 @@ int rgmii_get_regs_len(struct platform_device *ofdev)
 
 void *rgmii_dump_regs(struct platform_device *ofdev, void *buf)
 {
-	struct rgmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct rgmii_instance *dev = platform_get_drvdata(ofdev);
 	struct emac_ethtool_regs_subhdr *hdr = buf;
 	struct rgmii_regs *regs = (struct rgmii_regs *)(hdr + 1);
 
@@ -279,7 +279,7 @@ static int rgmii_probe(struct platform_device *ofdev)
 	       (dev->flags & EMAC_RGMII_FLAG_HAS_MDIO) ? "" : "out");
 
 	wmb();
-	dev_set_drvdata(&ofdev->dev, dev);
+	platform_set_drvdata(ofdev, dev);
 
 	return 0;
 
@@ -291,9 +291,7 @@ static int rgmii_probe(struct platform_device *ofdev)
 
 static int rgmii_remove(struct platform_device *ofdev)
 {
-	struct rgmii_instance *dev = dev_get_drvdata(&ofdev->dev);
-
-	dev_set_drvdata(&ofdev->dev, NULL);
+	struct rgmii_instance *dev = platform_get_drvdata(ofdev);
 
 	WARN_ON(dev->users != 0);
 
diff --git a/drivers/net/ethernet/ibm/emac/tah.c b/drivers/net/ethernet/ibm/emac/tah.c
index 795f139..c231a4a 100644
--- a/drivers/net/ethernet/ibm/emac/tah.c
+++ b/drivers/net/ethernet/ibm/emac/tah.c
@@ -25,7 +25,7 @@
 
 int tah_attach(struct platform_device *ofdev, int channel)
 {
-	struct tah_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct tah_instance *dev = platform_get_drvdata(ofdev);
 
 	mutex_lock(&dev->lock);
 	/* Reset has been done at probe() time... nothing else to do for now */
@@ -37,7 +37,7 @@ int tah_attach(struct platform_device *ofdev, int channel)
 
 void tah_detach(struct platform_device *ofdev, int channel)
 {
-	struct tah_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct tah_instance *dev = platform_get_drvdata(ofdev);
 
 	mutex_lock(&dev->lock);
 	--dev->users;
@@ -46,7 +46,7 @@ void tah_detach(struct platform_device *ofdev, int channel)
 
 void tah_reset(struct platform_device *ofdev)
 {
-	struct tah_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct tah_instance *dev = platform_get_drvdata(ofdev);
 	struct tah_regs __iomem *p = dev->base;
 	int n;
 
@@ -74,7 +74,7 @@ int tah_get_regs_len(struct platform_device *ofdev)
 
 void *tah_dump_regs(struct platform_device *ofdev, void *buf)
 {
-	struct tah_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct tah_instance *dev = platform_get_drvdata(ofdev);
 	struct emac_ethtool_regs_subhdr *hdr = buf;
 	struct tah_regs *regs = (struct tah_regs *)(hdr + 1);
 
@@ -118,7 +118,7 @@ static int tah_probe(struct platform_device *ofdev)
 		goto err_free;
 	}
 
-	dev_set_drvdata(&ofdev->dev, dev);
+	platform_set_drvdata(ofdev, dev);
 
 	/* Initialize TAH and enable IPv4 checksum verification, no TSO yet */
 	tah_reset(ofdev);
@@ -137,9 +137,7 @@ static int tah_probe(struct platform_device *ofdev)
 
 static int tah_remove(struct platform_device *ofdev)
 {
-	struct tah_instance *dev = dev_get_drvdata(&ofdev->dev);
-
-	dev_set_drvdata(&ofdev->dev, NULL);
+	struct tah_instance *dev = platform_get_drvdata(ofdev);
 
 	WARN_ON(dev->users != 0);
 
diff --git a/drivers/net/ethernet/ibm/emac/zmii.c b/drivers/net/ethernet/ibm/emac/zmii.c
index f91202f..4cdf286 100644
--- a/drivers/net/ethernet/ibm/emac/zmii.c
+++ b/drivers/net/ethernet/ibm/emac/zmii.c
@@ -84,7 +84,7 @@ static inline u32 zmii_mode_mask(int mode, int input)
 
 int zmii_attach(struct platform_device *ofdev, int input, int *mode)
 {
-	struct zmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct zmii_instance *dev = platform_get_drvdata(ofdev);
 	struct zmii_regs __iomem *p = dev->base;
 
 	ZMII_DBG(dev, "init(%d, %d)" NL, input, *mode);
@@ -150,7 +150,7 @@ int zmii_attach(struct platform_device *ofdev, int input, int *mode)
 
 void zmii_get_mdio(struct platform_device *ofdev, int input)
 {
-	struct zmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct zmii_instance *dev = platform_get_drvdata(ofdev);
 	u32 fer;
 
 	ZMII_DBG2(dev, "get_mdio(%d)" NL, input);
@@ -163,7 +163,7 @@ void zmii_get_mdio(struct platform_device *ofdev, int input)
 
 void zmii_put_mdio(struct platform_device *ofdev, int input)
 {
-	struct zmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct zmii_instance *dev = platform_get_drvdata(ofdev);
 
 	ZMII_DBG2(dev, "put_mdio(%d)" NL, input);
 	mutex_unlock(&dev->lock);
@@ -172,7 +172,7 @@ void zmii_put_mdio(struct platform_device *ofdev, int input)
 
 void zmii_set_speed(struct platform_device *ofdev, int input, int speed)
 {
-	struct zmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct zmii_instance *dev = platform_get_drvdata(ofdev);
 	u32 ssr;
 
 	mutex_lock(&dev->lock);
@@ -193,7 +193,7 @@ void zmii_set_speed(struct platform_device *ofdev, int input, int speed)
 
 void zmii_detach(struct platform_device *ofdev, int input)
 {
-	struct zmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct zmii_instance *dev = platform_get_drvdata(ofdev);
 
 	BUG_ON(!dev || dev->users == 0);
 
@@ -218,7 +218,7 @@ int zmii_get_regs_len(struct platform_device *ofdev)
 
 void *zmii_dump_regs(struct platform_device *ofdev, void *buf)
 {
-	struct zmii_instance *dev = dev_get_drvdata(&ofdev->dev);
+	struct zmii_instance *dev = platform_get_drvdata(ofdev);
 	struct emac_ethtool_regs_subhdr *hdr = buf;
 	struct zmii_regs *regs = (struct zmii_regs *)(hdr + 1);
 
@@ -272,7 +272,7 @@ static int zmii_probe(struct platform_device *ofdev)
 	printk(KERN_INFO
 	       "ZMII %s initialized\n", ofdev->dev.of_node->full_name);
 	wmb();
-	dev_set_drvdata(&ofdev->dev, dev);
+	platform_set_drvdata(ofdev, dev);
 
 	return 0;
 
@@ -284,9 +284,7 @@ static int zmii_probe(struct platform_device *ofdev)
 
 static int zmii_remove(struct platform_device *ofdev)
 {
-	struct zmii_instance *dev = dev_get_drvdata(&ofdev->dev);
-
-	dev_set_drvdata(&ofdev->dev, NULL);
+	struct zmii_instance *dev = platform_get_drvdata(ofdev);
 
 	WARN_ON(dev->users != 0);
 
diff --git a/drivers/net/ethernet/netx-eth.c b/drivers/net/ethernet/netx-eth.c
index cb9e638..5da3ffb 100644
--- a/drivers/net/ethernet/netx-eth.c
+++ b/drivers/net/ethernet/netx-eth.c
@@ -430,11 +430,9 @@ exit:
 
 static int netx_eth_drv_remove(struct platform_device *pdev)
 {
-	struct net_device *ndev = dev_get_drvdata(&pdev->dev);
+	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct netx_eth_priv *priv = netdev_priv(ndev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	unregister_netdev(ndev);
 	xc_stop(priv->xc);
 	free_xc(priv->xc);
diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
index 921729f..e6e0292 100644
--- a/drivers/net/ethernet/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/octeon/octeon_mgmt.c
@@ -1437,7 +1437,7 @@ static int octeon_mgmt_probe(struct platform_device *pdev)
 
 	SET_NETDEV_DEV(netdev, &pdev->dev);
 
-	dev_set_drvdata(&pdev->dev, netdev);
+	platform_set_drvdata(pdev, netdev);
 	p = netdev_priv(netdev);
 	netif_napi_add(netdev, &p->napi, octeon_mgmt_napi_poll,
 		       OCTEON_MGMT_NAPI_WEIGHT);
@@ -1559,7 +1559,7 @@ err:
 
 static int octeon_mgmt_remove(struct platform_device *pdev)
 {
-	struct net_device *netdev = dev_get_drvdata(&pdev->dev);
+	struct net_device *netdev = platform_get_drvdata(pdev);
 
 	unregister_netdev(netdev);
 	free_netdev(netdev);
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index 95cff98..fa32240 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -10108,7 +10108,7 @@ static int niu_of_probe(struct platform_device *op)
 		goto err_out_iounmap;
 	}
 
-	dev_set_drvdata(&op->dev, dev);
+	platform_set_drvdata(op, dev);
 
 	niu_device_announce(np);
 
@@ -10145,7 +10145,7 @@ err_out:
 
 static int niu_of_remove(struct platform_device *op)
 {
-	struct net_device *dev = dev_get_drvdata(&op->dev);
+	struct net_device *dev = platform_get_drvdata(op);
 
 	if (dev) {
 		struct niu *np = netdev_priv(dev);
@@ -10175,7 +10175,6 @@ static int niu_of_remove(struct platform_device *op)
 		niu_put_parent(np);
 
 		free_netdev(dev);
-		dev_set_drvdata(&op->dev, NULL);
 	}
 	return 0;
 }
diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index 436fa9d..171f5b0 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -2506,7 +2506,7 @@ static struct quattro *quattro_sbus_find(struct platform_device *child)
 	struct quattro *qp;
 
 	op = to_platform_device(parent);
-	qp = dev_get_drvdata(&op->dev);
+	qp = platform_get_drvdata(op);
 	if (qp)
 		return qp;
 
@@ -2521,7 +2521,7 @@ static struct quattro *quattro_sbus_find(struct platform_device *child)
 		qp->next = qfe_sbus_list;
 		qfe_sbus_list = qp;
 
-		dev_set_drvdata(&op->dev, qp);
+		platform_set_drvdata(op, qp);
 	}
 	return qp;
 }
diff --git a/drivers/net/ethernet/sun/sunqe.c b/drivers/net/ethernet/sun/sunqe.c
index 8182591b..b072f4d 100644
--- a/drivers/net/ethernet/sun/sunqe.c
+++ b/drivers/net/ethernet/sun/sunqe.c
@@ -767,7 +767,7 @@ static struct sunqec *get_qec(struct platform_device *child)
 	struct platform_device *op = to_platform_device(child->dev.parent);
 	struct sunqec *qecp;
 
-	qecp = dev_get_drvdata(&op->dev);
+	qecp = platform_get_drvdata(op);
 	if (!qecp) {
 		qecp = kzalloc(sizeof(struct sunqec), GFP_KERNEL);
 		if (qecp) {
@@ -801,7 +801,7 @@ static struct sunqec *get_qec(struct platform_device *child)
 				goto fail;
 			}
 
-			dev_set_drvdata(&op->dev, qecp);
+			platform_set_drvdata(op, qecp);
 
 			qecp->next_module = root_qec_dev;
 			root_qec_dev = qecp;
@@ -902,7 +902,7 @@ static int qec_ether_init(struct platform_device *op)
 	if (res)
 		goto fail;
 
-	dev_set_drvdata(&op->dev, qe);
+	platform_set_drvdata(op, qe);
 
 	printk(KERN_INFO "%s: qe channel[%d] %pM\n", dev->name, qe->channel,
 	       dev->dev_addr);
@@ -934,7 +934,7 @@ static int qec_sbus_probe(struct platform_device *op)
 
 static int qec_sbus_remove(struct platform_device *op)
 {
-	struct sunqe *qp = dev_get_drvdata(&op->dev);
+	struct sunqe *qp = platform_get_drvdata(op);
 	struct net_device *net_dev = qp->dev;
 
 	unregister_netdev(net_dev);
@@ -948,8 +948,6 @@ static int qec_sbus_remove(struct platform_device *op)
 
 	free_netdev(net_dev);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index 57c2e5e..58eb448 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -1007,7 +1007,7 @@ static int temac_of_probe(struct platform_device *op)
 		return -ENOMEM;
 
 	ether_setup(ndev);
-	dev_set_drvdata(&op->dev, ndev);
+	platform_set_drvdata(op, ndev);
 	SET_NETDEV_DEV(ndev, &op->dev);
 	ndev->flags &= ~IFF_MULTICAST;  /* clear multicast */
 	ndev->features = NETIF_F_SG | NETIF_F_FRAGLIST;
@@ -1136,7 +1136,7 @@ static int temac_of_probe(struct platform_device *op)
 
 static int temac_of_remove(struct platform_device *op)
 {
-	struct net_device *ndev = dev_get_drvdata(&op->dev);
+	struct net_device *ndev = platform_get_drvdata(op);
 	struct temac_local *lp = netdev_priv(ndev);
 
 	temac_mdio_teardown(lp);
@@ -1145,7 +1145,6 @@ static int temac_of_remove(struct platform_device *op)
 	if (lp->phy_node)
 		of_node_put(lp->phy_node);
 	lp->phy_node = NULL;
-	dev_set_drvdata(&op->dev, NULL);
 	iounmap(lp->regs);
 	if (lp->sdma_regs)
 		iounmap(lp->sdma_regs);
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 24748e8..fb7d1c2 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -1484,7 +1484,7 @@ static int axienet_of_probe(struct platform_device *op)
 		return -ENOMEM;
 
 	ether_setup(ndev);
-	dev_set_drvdata(&op->dev, ndev);
+	platform_set_drvdata(op, ndev);
 
 	SET_NETDEV_DEV(ndev, &op->dev);
 	ndev->flags &= ~IFF_MULTICAST;  /* clear multicast */
@@ -1622,7 +1622,7 @@ nodev:
 
 static int axienet_of_remove(struct platform_device *op)
 {
-	struct net_device *ndev = dev_get_drvdata(&op->dev);
+	struct net_device *ndev = platform_get_drvdata(op);
 	struct axienet_local *lp = netdev_priv(ndev);
 
 	axienet_mdio_teardown(lp);
@@ -1632,8 +1632,6 @@ static int axienet_of_remove(struct platform_device *op)
 		of_node_put(lp->phy_node);
 	lp->phy_node = NULL;
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	iounmap(lp->regs);
 	if (lp->dma_regs)
 		iounmap(lp->dma_regs);
-- 
cgit v0.10.2


From 42e52bf9e3ae80fd44b21ddfcd64c54e6db2ff76 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Sat, 25 May 2013 04:12:10 +0000
Subject: net: add netnotifier event for upper device change

Now when upper device is changed, event is not propagated via RT Netlink
to userspace. Userspace might never now about the change. Fix this by
adding upper-device-change notifier event.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 0ebd63a..ea7b6bc 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1593,6 +1593,7 @@ struct packet_offload {
 #define NETDEV_RELEASE		0x0012
 #define NETDEV_NOTIFY_PEERS	0x0013
 #define NETDEV_JOIN		0x0014
+#define NETDEV_CHANGEUPPER	0x0015
 
 extern int register_netdevice_notifier(struct notifier_block *nb);
 extern int unregister_netdevice_notifier(struct notifier_block *nb);
diff --git a/net/core/dev.c b/net/core/dev.c
index 7229bc3..50c02de 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4411,7 +4411,7 @@ static int __netdev_upper_dev_link(struct net_device *dev,
 	else
 		list_add_tail_rcu(&upper->list, &dev->upper_dev_list);
 	dev_hold(upper_dev);
-
+	call_netdevice_notifiers(NETDEV_CHANGEUPPER, dev);
 	return 0;
 }
 
@@ -4471,6 +4471,7 @@ void netdev_upper_dev_unlink(struct net_device *dev,
 	list_del_rcu(&upper->list);
 	dev_put(upper_dev);
 	kfree_rcu(upper, rcu);
+	call_netdevice_notifiers(NETDEV_CHANGEUPPER, dev);
 }
 EXPORT_SYMBOL(netdev_upper_dev_unlink);
 
-- 
cgit v0.10.2


From 1f6afc81088a1f5a472b272408730c73b72c68aa Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 24 May 2013 15:03:54 +0000
Subject: tcp: remove one indentation level in tcp_rcv_state_process()

Remove one level of indentation 'introduced' in commit
c3ae62af8e75 (tcp: should drop incoming frames without ACK flag set)

if (true) {
        ...
}

@acceptable variable is a boolean.

This patch is a pure cleanup.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 8230cd6..4061425 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5536,6 +5536,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct request_sock *req;
 	int queued = 0;
+	bool acceptable;
 
 	tp->rx_opt.saw_tstamp = 0;
 
@@ -5606,157 +5607,153 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 		return 0;
 
 	/* step 5: check the ACK field */
-	if (true) {
-		int acceptable = tcp_ack(sk, skb, FLAG_SLOWPATH |
-						  FLAG_UPDATE_TS_RECENT) > 0;
-
-		switch (sk->sk_state) {
-		case TCP_SYN_RECV:
-			if (acceptable) {
-				/* Once we leave TCP_SYN_RECV, we no longer
-				 * need req so release it.
-				 */
-				if (req) {
-					tcp_synack_rtt_meas(sk, req);
-					tp->total_retrans = req->num_retrans;
-
-					reqsk_fastopen_remove(sk, req, false);
-				} else {
-					/* Make sure socket is routed, for
-					 * correct metrics.
-					 */
-					icsk->icsk_af_ops->rebuild_header(sk);
-					tcp_init_congestion_control(sk);
+	acceptable = tcp_ack(sk, skb, FLAG_SLOWPATH |
+				      FLAG_UPDATE_TS_RECENT) > 0;
 
-					tcp_mtup_init(sk);
-					tcp_init_buffer_space(sk);
-					tp->copied_seq = tp->rcv_nxt;
-				}
-				smp_mb();
-				tcp_set_state(sk, TCP_ESTABLISHED);
-				sk->sk_state_change(sk);
+	switch (sk->sk_state) {
+	case TCP_SYN_RECV:
+		if (acceptable) {
+			/* Once we leave TCP_SYN_RECV, we no longer
+			 * need req so release it.
+			 */
+			if (req) {
+				tcp_synack_rtt_meas(sk, req);
+				tp->total_retrans = req->num_retrans;
 
-				/* Note, that this wakeup is only for marginal
-				 * crossed SYN case. Passively open sockets
-				 * are not waked up, because sk->sk_sleep ==
-				 * NULL and sk->sk_socket == NULL.
+				reqsk_fastopen_remove(sk, req, false);
+			} else {
+				/* Make sure socket is routed, for
+				 * correct metrics.
 				 */
-				if (sk->sk_socket)
-					sk_wake_async(sk,
-						      SOCK_WAKE_IO, POLL_OUT);
-
-				tp->snd_una = TCP_SKB_CB(skb)->ack_seq;
-				tp->snd_wnd = ntohs(th->window) <<
-					      tp->rx_opt.snd_wscale;
-				tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);
-
-				if (tp->rx_opt.tstamp_ok)
-					tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;
-
-				if (req) {
-					/* Re-arm the timer because data may
-					 * have been sent out. This is similar
-					 * to the regular data transmission case
-					 * when new data has just been ack'ed.
-					 *
-					 * (TFO) - we could try to be more
-					 * aggressive and retranmitting any data
-					 * sooner based on when they were sent
-					 * out.
-					 */
-					tcp_rearm_rto(sk);
-				} else
-					tcp_init_metrics(sk);
+				icsk->icsk_af_ops->rebuild_header(sk);
+				tcp_init_congestion_control(sk);
 
-				/* Prevent spurious tcp_cwnd_restart() on
-				 * first data packet.
+				tcp_mtup_init(sk);
+				tcp_init_buffer_space(sk);
+				tp->copied_seq = tp->rcv_nxt;
+			}
+			smp_mb();
+			tcp_set_state(sk, TCP_ESTABLISHED);
+			sk->sk_state_change(sk);
+
+			/* Note, that this wakeup is only for marginal
+			 * crossed SYN case. Passively open sockets
+			 * are not waked up, because sk->sk_sleep ==
+			 * NULL and sk->sk_socket == NULL.
+			 */
+			if (sk->sk_socket)
+				sk_wake_async(sk, SOCK_WAKE_IO, POLL_OUT);
+
+			tp->snd_una = TCP_SKB_CB(skb)->ack_seq;
+			tp->snd_wnd = ntohs(th->window) <<
+					tp->rx_opt.snd_wscale;
+			tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);
+
+			if (tp->rx_opt.tstamp_ok)
+				tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;
+
+			if (req) {
+				/* Re-arm the timer because data may
+				 * have been sent out. This is similar
+				 * to the regular data transmission case
+				 * when new data has just been ack'ed.
+				 *
+				 * (TFO) - we could try to be more aggressive
+				 * and retransmitting any data sooner based
+				 * on when they are sent out.
 				 */
-				tp->lsndtime = tcp_time_stamp;
+				tcp_rearm_rto(sk);
+			} else
+				tcp_init_metrics(sk);
 
-				tcp_initialize_rcv_mss(sk);
-				tcp_fast_path_on(tp);
-			} else {
-				return 1;
-			}
-			break;
+			/* Prevent spurious tcp_cwnd_restart() on
+			 * first data packet.
+			 */
+			tp->lsndtime = tcp_time_stamp;
 
-		case TCP_FIN_WAIT1:
-			/* If we enter the TCP_FIN_WAIT1 state and we are a
-			 * Fast Open socket and this is the first acceptable
-			 * ACK we have received, this would have acknowledged
-			 * our SYNACK so stop the SYNACK timer.
+			tcp_initialize_rcv_mss(sk);
+			tcp_fast_path_on(tp);
+		} else {
+			return 1;
+		}
+		break;
+
+	case TCP_FIN_WAIT1:
+		/* If we enter the TCP_FIN_WAIT1 state and we are a
+		 * Fast Open socket and this is the first acceptable
+		 * ACK we have received, this would have acknowledged
+		 * our SYNACK so stop the SYNACK timer.
+		 */
+		if (req != NULL) {
+			/* Return RST if ack_seq is invalid.
+			 * Note that RFC793 only says to generate a
+			 * DUPACK for it but for TCP Fast Open it seems
+			 * better to treat this case like TCP_SYN_RECV
+			 * above.
 			 */
-			if (req != NULL) {
-				/* Return RST if ack_seq is invalid.
-				 * Note that RFC793 only says to generate a
-				 * DUPACK for it but for TCP Fast Open it seems
-				 * better to treat this case like TCP_SYN_RECV
-				 * above.
-				 */
-				if (!acceptable)
+			if (!acceptable)
+				return 1;
+			/* We no longer need the request sock. */
+			reqsk_fastopen_remove(sk, req, false);
+			tcp_rearm_rto(sk);
+		}
+		if (tp->snd_una == tp->write_seq) {
+			struct dst_entry *dst;
+
+			tcp_set_state(sk, TCP_FIN_WAIT2);
+			sk->sk_shutdown |= SEND_SHUTDOWN;
+
+			dst = __sk_dst_get(sk);
+			if (dst)
+				dst_confirm(dst);
+
+			if (!sock_flag(sk, SOCK_DEAD)) {
+				/* Wake up lingering close() */
+				sk->sk_state_change(sk);
+			} else {
+				int tmo;
+
+				if (tp->linger2 < 0 ||
+				    (TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb)->seq &&
+				     after(TCP_SKB_CB(skb)->end_seq - th->fin, tp->rcv_nxt))) {
+					tcp_done(sk);
+					NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONDATA);
 					return 1;
-				/* We no longer need the request sock. */
-				reqsk_fastopen_remove(sk, req, false);
-				tcp_rearm_rto(sk);
-			}
-			if (tp->snd_una == tp->write_seq) {
-				struct dst_entry *dst;
-
-				tcp_set_state(sk, TCP_FIN_WAIT2);
-				sk->sk_shutdown |= SEND_SHUTDOWN;
-
-				dst = __sk_dst_get(sk);
-				if (dst)
-					dst_confirm(dst);
-
-				if (!sock_flag(sk, SOCK_DEAD))
-					/* Wake up lingering close() */
-					sk->sk_state_change(sk);
-				else {
-					int tmo;
-
-					if (tp->linger2 < 0 ||
-					    (TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb)->seq &&
-					     after(TCP_SKB_CB(skb)->end_seq - th->fin, tp->rcv_nxt))) {
-						tcp_done(sk);
-						NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONDATA);
-						return 1;
-					}
+				}
 
-					tmo = tcp_fin_time(sk);
-					if (tmo > TCP_TIMEWAIT_LEN) {
-						inet_csk_reset_keepalive_timer(sk, tmo - TCP_TIMEWAIT_LEN);
-					} else if (th->fin || sock_owned_by_user(sk)) {
-						/* Bad case. We could lose such FIN otherwise.
-						 * It is not a big problem, but it looks confusing
-						 * and not so rare event. We still can lose it now,
-						 * if it spins in bh_lock_sock(), but it is really
-						 * marginal case.
-						 */
-						inet_csk_reset_keepalive_timer(sk, tmo);
-					} else {
-						tcp_time_wait(sk, TCP_FIN_WAIT2, tmo);
-						goto discard;
-					}
+				tmo = tcp_fin_time(sk);
+				if (tmo > TCP_TIMEWAIT_LEN) {
+					inet_csk_reset_keepalive_timer(sk, tmo - TCP_TIMEWAIT_LEN);
+				} else if (th->fin || sock_owned_by_user(sk)) {
+					/* Bad case. We could lose such FIN otherwise.
+					 * It is not a big problem, but it looks confusing
+					 * and not so rare event. We still can lose it now,
+					 * if it spins in bh_lock_sock(), but it is really
+					 * marginal case.
+					 */
+					inet_csk_reset_keepalive_timer(sk, tmo);
+				} else {
+					tcp_time_wait(sk, TCP_FIN_WAIT2, tmo);
+					goto discard;
 				}
 			}
-			break;
+		}
+		break;
 
-		case TCP_CLOSING:
-			if (tp->snd_una == tp->write_seq) {
-				tcp_time_wait(sk, TCP_TIME_WAIT, 0);
-				goto discard;
-			}
-			break;
+	case TCP_CLOSING:
+		if (tp->snd_una == tp->write_seq) {
+			tcp_time_wait(sk, TCP_TIME_WAIT, 0);
+			goto discard;
+		}
+		break;
 
-		case TCP_LAST_ACK:
-			if (tp->snd_una == tp->write_seq) {
-				tcp_update_metrics(sk);
-				tcp_done(sk);
-				goto discard;
-			}
-			break;
+	case TCP_LAST_ACK:
+		if (tp->snd_una == tp->write_seq) {
+			tcp_update_metrics(sk);
+			tcp_done(sk);
+			goto discard;
 		}
+		break;
 	}
 
 	/* step 6: check the URG bit */
-- 
cgit v0.10.2


From 61eb900352ff731d990d5415ce9f04e4af6a6136 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 24 May 2013 18:36:13 +0000
Subject: tcp: Remove another indentation level in tcp_rcv_state_process

case TCP_SYN_RECV: can have another indentation level removed
by converting

	if (acceptable) {
		...;
	} else {
		return 1;
	}

to
	if (!acceptable)
		return 1;
	...;

Reflow code and comments to fit 80 columns.

Another pure cleanup patch.

Signed-off-by: Joe Perches <joe@perches.com>
Improved-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 4061425..413b480 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5612,70 +5612,62 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 
 	switch (sk->sk_state) {
 	case TCP_SYN_RECV:
-		if (acceptable) {
-			/* Once we leave TCP_SYN_RECV, we no longer
-			 * need req so release it.
-			 */
-			if (req) {
-				tcp_synack_rtt_meas(sk, req);
-				tp->total_retrans = req->num_retrans;
+		if (!acceptable)
+			return 1;
 
-				reqsk_fastopen_remove(sk, req, false);
-			} else {
-				/* Make sure socket is routed, for
-				 * correct metrics.
-				 */
-				icsk->icsk_af_ops->rebuild_header(sk);
-				tcp_init_congestion_control(sk);
+		/* Once we leave TCP_SYN_RECV, we no longer need req
+		 * so release it.
+		 */
+		if (req) {
+			tcp_synack_rtt_meas(sk, req);
+			tp->total_retrans = req->num_retrans;
 
-				tcp_mtup_init(sk);
-				tcp_init_buffer_space(sk);
-				tp->copied_seq = tp->rcv_nxt;
-			}
-			smp_mb();
-			tcp_set_state(sk, TCP_ESTABLISHED);
-			sk->sk_state_change(sk);
-
-			/* Note, that this wakeup is only for marginal
-			 * crossed SYN case. Passively open sockets
-			 * are not waked up, because sk->sk_sleep ==
-			 * NULL and sk->sk_socket == NULL.
-			 */
-			if (sk->sk_socket)
-				sk_wake_async(sk, SOCK_WAKE_IO, POLL_OUT);
-
-			tp->snd_una = TCP_SKB_CB(skb)->ack_seq;
-			tp->snd_wnd = ntohs(th->window) <<
-					tp->rx_opt.snd_wscale;
-			tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);
-
-			if (tp->rx_opt.tstamp_ok)
-				tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;
-
-			if (req) {
-				/* Re-arm the timer because data may
-				 * have been sent out. This is similar
-				 * to the regular data transmission case
-				 * when new data has just been ack'ed.
-				 *
-				 * (TFO) - we could try to be more aggressive
-				 * and retransmitting any data sooner based
-				 * on when they are sent out.
-				 */
-				tcp_rearm_rto(sk);
-			} else
-				tcp_init_metrics(sk);
+			reqsk_fastopen_remove(sk, req, false);
+		} else {
+			/* Make sure socket is routed, for correct metrics. */
+			icsk->icsk_af_ops->rebuild_header(sk);
+			tcp_init_congestion_control(sk);
+
+			tcp_mtup_init(sk);
+			tcp_init_buffer_space(sk);
+			tp->copied_seq = tp->rcv_nxt;
+		}
+		smp_mb();
+		tcp_set_state(sk, TCP_ESTABLISHED);
+		sk->sk_state_change(sk);
 
-			/* Prevent spurious tcp_cwnd_restart() on
-			 * first data packet.
+		/* Note, that this wakeup is only for marginal crossed SYN case.
+		 * Passively open sockets are not waked up, because
+		 * sk->sk_sleep == NULL and sk->sk_socket == NULL.
+		 */
+		if (sk->sk_socket)
+			sk_wake_async(sk, SOCK_WAKE_IO, POLL_OUT);
+
+		tp->snd_una = TCP_SKB_CB(skb)->ack_seq;
+		tp->snd_wnd = ntohs(th->window) << tp->rx_opt.snd_wscale;
+		tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);
+
+		if (tp->rx_opt.tstamp_ok)
+			tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;
+
+		if (req) {
+			/* Re-arm the timer because data may have been sent out.
+			 * This is similar to the regular data transmission case
+			 * when new data has just been ack'ed.
+			 *
+			 * (TFO) - we could try to be more aggressive and
+			 * retransmitting any data sooner based on when they
+			 * are sent out.
 			 */
-			tp->lsndtime = tcp_time_stamp;
+			tcp_rearm_rto(sk);
+		} else
+			tcp_init_metrics(sk);
 
-			tcp_initialize_rcv_mss(sk);
-			tcp_fast_path_on(tp);
-		} else {
-			return 1;
-		}
+		/* Prevent spurious tcp_cwnd_restart() on first data packet */
+		tp->lsndtime = tcp_time_stamp;
+
+		tcp_initialize_rcv_mss(sk);
+		tcp_fast_path_on(tp);
 		break;
 
 	case TCP_FIN_WAIT1:
-- 
cgit v0.10.2


From c48b22daa6062fff9eded311b4d6974c29b40487 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 24 May 2013 18:06:58 +0000
Subject: tcp: Remove 2 indentation levels in tcp_rcv_state_process

case TCP_FIN_WAIT1 can also be simplified by reversing tests
and adding breaks;

Add braces after case and move automatic definitions.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 413b480..9579e1a 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5670,7 +5670,10 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 		tcp_fast_path_on(tp);
 		break;
 
-	case TCP_FIN_WAIT1:
+	case TCP_FIN_WAIT1: {
+		struct dst_entry *dst;
+		int tmo;
+
 		/* If we enter the TCP_FIN_WAIT1 state and we are a
 		 * Fast Open socket and this is the first acceptable
 		 * ACK we have received, this would have acknowledged
@@ -5689,48 +5692,47 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 			reqsk_fastopen_remove(sk, req, false);
 			tcp_rearm_rto(sk);
 		}
-		if (tp->snd_una == tp->write_seq) {
-			struct dst_entry *dst;
+		if (tp->snd_una != tp->write_seq)
+			break;
 
-			tcp_set_state(sk, TCP_FIN_WAIT2);
-			sk->sk_shutdown |= SEND_SHUTDOWN;
+		tcp_set_state(sk, TCP_FIN_WAIT2);
+		sk->sk_shutdown |= SEND_SHUTDOWN;
 
-			dst = __sk_dst_get(sk);
-			if (dst)
-				dst_confirm(dst);
+		dst = __sk_dst_get(sk);
+		if (dst)
+			dst_confirm(dst);
 
-			if (!sock_flag(sk, SOCK_DEAD)) {
-				/* Wake up lingering close() */
-				sk->sk_state_change(sk);
-			} else {
-				int tmo;
-
-				if (tp->linger2 < 0 ||
-				    (TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb)->seq &&
-				     after(TCP_SKB_CB(skb)->end_seq - th->fin, tp->rcv_nxt))) {
-					tcp_done(sk);
-					NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONDATA);
-					return 1;
-				}
+		if (!sock_flag(sk, SOCK_DEAD)) {
+			/* Wake up lingering close() */
+			sk->sk_state_change(sk);
+			break;
+		}
 
-				tmo = tcp_fin_time(sk);
-				if (tmo > TCP_TIMEWAIT_LEN) {
-					inet_csk_reset_keepalive_timer(sk, tmo - TCP_TIMEWAIT_LEN);
-				} else if (th->fin || sock_owned_by_user(sk)) {
-					/* Bad case. We could lose such FIN otherwise.
-					 * It is not a big problem, but it looks confusing
-					 * and not so rare event. We still can lose it now,
-					 * if it spins in bh_lock_sock(), but it is really
-					 * marginal case.
-					 */
-					inet_csk_reset_keepalive_timer(sk, tmo);
-				} else {
-					tcp_time_wait(sk, TCP_FIN_WAIT2, tmo);
-					goto discard;
-				}
-			}
+		if (tp->linger2 < 0 ||
+		    (TCP_SKB_CB(skb)->end_seq != TCP_SKB_CB(skb)->seq &&
+		     after(TCP_SKB_CB(skb)->end_seq - th->fin, tp->rcv_nxt))) {
+			tcp_done(sk);
+			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPABORTONDATA);
+			return 1;
+		}
+
+		tmo = tcp_fin_time(sk);
+		if (tmo > TCP_TIMEWAIT_LEN) {
+			inet_csk_reset_keepalive_timer(sk, tmo - TCP_TIMEWAIT_LEN);
+		} else if (th->fin || sock_owned_by_user(sk)) {
+			/* Bad case. We could lose such FIN otherwise.
+			 * It is not a big problem, but it looks confusing
+			 * and not so rare event. We still can lose it now,
+			 * if it spins in bh_lock_sock(), but it is really
+			 * marginal case.
+			 */
+			inet_csk_reset_keepalive_timer(sk, tmo);
+		} else {
+			tcp_time_wait(sk, TCP_FIN_WAIT2, tmo);
+			goto discard;
 		}
 		break;
+	}
 
 	case TCP_CLOSING:
 		if (tp->snd_una == tp->write_seq) {
-- 
cgit v0.10.2


From 9d5242b19269432ea388d766312ed49f184f83fd Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Sat, 25 May 2013 01:46:10 +0000
Subject: netfilter: nfnetlink_queue: avoid peer_portid test

The portid is set to NETLINK_CB(skb).portid at create time.
The run-time check will always be false.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index 2e0e835..cff4449 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -509,10 +509,6 @@ __nfqnl_enqueue_packet(struct net *net, struct nfqnl_instance *queue,
 	}
 	spin_lock_bh(&queue->lock);
 
-	if (!queue->peer_portid) {
-		err = -EINVAL;
-		goto err_out_free_nskb;
-	}
 	if (queue->queue_total >= queue->queue_maxlen) {
 		if (queue->flags & NFQA_CFG_F_FAIL_OPEN) {
 			failopen = 1;
-- 
cgit v0.10.2


From 8ade62857ef77bdf639185410fbcd811aa700cb2 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 17 May 2013 12:01:26 +0200
Subject: iwlwifi: move D3_CFG_COMPLETE handling into DVM

The MVM firmware doesn't communicate this way, it instead
assumes D3 configuration is complete after a specific host
command (which must be last) has been sent. Handling this
bit thus belongs into the firmware API code, i.e. DVM.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index cab23af..7002153 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -426,6 +426,10 @@ static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
 	if (ret)
 		goto error;
 
+	/* let the ucode operate on its own */
+	iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET,
+		    CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
+
 	iwl_trans_d3_suspend(priv->trans);
 
 	goto out;
@@ -509,6 +513,10 @@ static int iwlagn_mac_resume(struct ieee80211_hw *hw)
 		goto out_unlock;
 	}
 
+	/* uCode is no longer operating by itself */
+	iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
+		    CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
+
 	base = priv->device_pointers.error_event_table;
 	if (!iwlagn_hw_valid_rtc_data_addr(base)) {
 		IWL_WARN(priv, "Invalid error table during resume!\n");
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index a785f49..0b02130 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -580,10 +580,6 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans)
 
 static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans)
 {
-	/* let the ucode operate on its own */
-	iwl_write32(trans, CSR_UCODE_DRV_GP1_SET,
-		    CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
-
 	iwl_disable_interrupts(trans);
 	iwl_pcie_disable_ict(trans);
 
@@ -643,9 +639,6 @@ static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans,
 		return ret;
 	}
 
-	iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR,
-		    CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
-
 	*status = IWL_D3_STATUS_ALIVE;
 	return 0;
 }
-- 
cgit v0.10.2


From ee4d5471333c323693f79cdb7b145b40e12baa77 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 17 May 2013 09:58:27 +0200
Subject: iwlwifi: dvm: rename iwl_lib_ops to iwl_dvm_cfg

The next patches will move some more configuration
data that isn't needed by mvm into this struct, so
rename it now since it won't just be ops.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/agn.h b/drivers/net/wireless/iwlwifi/dvm/agn.h
index 48545ab..ff47fce 100644
--- a/drivers/net/wireless/iwlwifi/dvm/agn.h
+++ b/drivers/net/wireless/iwlwifi/dvm/agn.h
@@ -76,13 +76,13 @@
 #define IWL_INVALID_STATION	255
 
 /* device operations */
-extern struct iwl_lib_ops iwl1000_lib;
-extern struct iwl_lib_ops iwl2000_lib;
-extern struct iwl_lib_ops iwl2030_lib;
-extern struct iwl_lib_ops iwl5000_lib;
-extern struct iwl_lib_ops iwl5150_lib;
-extern struct iwl_lib_ops iwl6000_lib;
-extern struct iwl_lib_ops iwl6030_lib;
+extern struct iwl_dvm_cfg iwl_dvm_1000_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_2000_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_2030_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_5000_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_5150_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_6000_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_6030_cfg;
 
 
 #define TIME_UNIT		1024
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index 71ea775..beb525c 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -568,7 +568,7 @@ struct iwl_hw_params {
 	const struct iwl_sensitivity_ranges *sens;
 };
 
-struct iwl_lib_ops {
+struct iwl_dvm_cfg {
 	/* set hw dependent parameters */
 	void (*set_hw_params)(struct iwl_priv *priv);
 	int (*set_channel_switch)(struct iwl_priv *priv,
@@ -610,7 +610,7 @@ struct iwl_priv {
 	struct device *dev;		/* for debug prints only */
 	const struct iwl_cfg *cfg;
 	const struct iwl_fw *fw;
-	const struct iwl_lib_ops *lib;
+	const struct iwl_dvm_cfg *lib;
 	unsigned long status;
 
 	spinlock_t sta_lock;
diff --git a/drivers/net/wireless/iwlwifi/dvm/devices.c b/drivers/net/wireless/iwlwifi/dvm/devices.c
index c48907c..5878bbb 100644
--- a/drivers/net/wireless/iwlwifi/dvm/devices.c
+++ b/drivers/net/wireless/iwlwifi/dvm/devices.c
@@ -174,7 +174,7 @@ static void iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.sens = &iwl1000_sensitivity;
 }
 
-struct iwl_lib_ops iwl1000_lib = {
+struct iwl_dvm_cfg iwl_dvm_1000_cfg = {
 	.set_hw_params = iwl1000_hw_set_hw_params,
 	.nic_config = iwl1000_nic_config,
 	.temperature = iwlagn_temperature,
@@ -232,13 +232,13 @@ static void iwl2000_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.sens = &iwl2000_sensitivity;
 }
 
-struct iwl_lib_ops iwl2000_lib = {
+struct iwl_dvm_cfg iwl_dvm_2000_cfg = {
 	.set_hw_params = iwl2000_hw_set_hw_params,
 	.nic_config = iwl2000_nic_config,
 	.temperature = iwlagn_temperature,
 };
 
-struct iwl_lib_ops iwl2030_lib = {
+struct iwl_dvm_cfg iwl_dvm_2030_cfg = {
 	.set_hw_params = iwl2000_hw_set_hw_params,
 	.nic_config = iwl2000_nic_config,
 	.temperature = iwlagn_temperature,
@@ -420,13 +420,13 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv,
 	return iwl_dvm_send_cmd(priv, &hcmd);
 }
 
-struct iwl_lib_ops iwl5000_lib = {
+struct iwl_dvm_cfg iwl_dvm_5000_cfg = {
 	.set_hw_params = iwl5000_hw_set_hw_params,
 	.set_channel_switch = iwl5000_hw_channel_switch,
 	.temperature = iwlagn_temperature,
 };
 
-struct iwl_lib_ops iwl5150_lib = {
+struct iwl_dvm_cfg iwl_dvm_5150_cfg = {
 	.set_hw_params = iwl5150_hw_set_hw_params,
 	.set_channel_switch = iwl5000_hw_channel_switch,
 	.temperature = iwl5150_temperature,
@@ -584,14 +584,14 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv,
 	return err;
 }
 
-struct iwl_lib_ops iwl6000_lib = {
+struct iwl_dvm_cfg iwl_dvm_6000_cfg = {
 	.set_hw_params = iwl6000_hw_set_hw_params,
 	.set_channel_switch = iwl6000_hw_channel_switch,
 	.nic_config = iwl6000_nic_config,
 	.temperature = iwlagn_temperature,
 };
 
-struct iwl_lib_ops iwl6030_lib = {
+struct iwl_dvm_cfg iwl_dvm_6030_cfg = {
 	.set_hw_params = iwl6000_hw_set_hw_params,
 	.set_channel_switch = iwl6000_hw_channel_switch,
 	.nic_config = iwl6000_nic_config,
diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 74d7572..0c77222 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -1264,31 +1264,31 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 	switch (priv->cfg->device_family) {
 	case IWL_DEVICE_FAMILY_1000:
 	case IWL_DEVICE_FAMILY_100:
-		priv->lib = &iwl1000_lib;
+		priv->lib = &iwl_dvm_1000_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_2000:
 	case IWL_DEVICE_FAMILY_105:
-		priv->lib = &iwl2000_lib;
+		priv->lib = &iwl_dvm_2000_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_2030:
 	case IWL_DEVICE_FAMILY_135:
-		priv->lib = &iwl2030_lib;
+		priv->lib = &iwl_dvm_2030_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_5000:
-		priv->lib = &iwl5000_lib;
+		priv->lib = &iwl_dvm_5000_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_5150:
-		priv->lib = &iwl5150_lib;
+		priv->lib = &iwl_dvm_5150_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_6000:
 	case IWL_DEVICE_FAMILY_6005:
 	case IWL_DEVICE_FAMILY_6000i:
 	case IWL_DEVICE_FAMILY_6050:
 	case IWL_DEVICE_FAMILY_6150:
-		priv->lib = &iwl6000_lib;
+		priv->lib = &iwl_dvm_6000_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_6030:
-		priv->lib = &iwl6030_lib;
+		priv->lib = &iwl_dvm_6030_cfg;
 		break;
 	default:
 		break;
-- 
cgit v0.10.2


From 0d8877a10d65f3c9bb84ad150e524d95ebd377fb Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 17 May 2013 10:36:29 +0200
Subject: iwlwifi: move some configuration parameters into DVM

There are a number of parameters that aren't really hardware
specific but rather define how the DVM firmware is used.
Move these into the DVM configuration.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/agn.h b/drivers/net/wireless/iwlwifi/dvm/agn.h
index ff47fce..df64a54 100644
--- a/drivers/net/wireless/iwlwifi/dvm/agn.h
+++ b/drivers/net/wireless/iwlwifi/dvm/agn.h
@@ -78,10 +78,13 @@
 /* device operations */
 extern struct iwl_dvm_cfg iwl_dvm_1000_cfg;
 extern struct iwl_dvm_cfg iwl_dvm_2000_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_105_cfg;
 extern struct iwl_dvm_cfg iwl_dvm_2030_cfg;
 extern struct iwl_dvm_cfg iwl_dvm_5000_cfg;
 extern struct iwl_dvm_cfg iwl_dvm_5150_cfg;
 extern struct iwl_dvm_cfg iwl_dvm_6000_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_6005_cfg;
+extern struct iwl_dvm_cfg iwl_dvm_6050_cfg;
 extern struct iwl_dvm_cfg iwl_dvm_6030_cfg;
 
 
@@ -291,8 +294,8 @@ void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena);
 
 static inline bool iwl_advanced_bt_coexist(struct iwl_priv *priv)
 {
-	return priv->cfg->bt_params &&
-	       priv->cfg->bt_params->advanced_bt_coexist;
+	return priv->lib->bt_params &&
+	       priv->lib->bt_params->advanced_bt_coexist;
 }
 
 #ifdef CONFIG_IWLWIFI_DEBUG
diff --git a/drivers/net/wireless/iwlwifi/dvm/calib.c b/drivers/net/wireless/iwlwifi/dvm/calib.c
index d6c4cf2..1b0f0d5 100644
--- a/drivers/net/wireless/iwlwifi/dvm/calib.c
+++ b/drivers/net/wireless/iwlwifi/dvm/calib.c
@@ -521,7 +521,7 @@ static int iwl_enhance_sensitivity_write(struct iwl_priv *priv)
 
 	iwl_prepare_legacy_sensitivity_tbl(priv, data, &cmd.enhance_table[0]);
 
-	if (priv->cfg->base_params->hd_v2) {
+	if (priv->lib->hd_v2) {
 		cmd.enhance_table[HD_INA_NON_SQUARE_DET_OFDM_INDEX] =
 			HD_INA_NON_SQUARE_DET_OFDM_DATA_V2;
 		cmd.enhance_table[HD_INA_NON_SQUARE_DET_CCK_INDEX] =
@@ -895,7 +895,7 @@ static void iwlagn_gain_computation(struct iwl_priv *priv,
 			continue;
 		}
 
-		delta_g = (priv->cfg->base_params->chain_noise_scale *
+		delta_g = (priv->lib->chain_noise_scale *
 			((s32)average_noise[default_chain] -
 			(s32)average_noise[i])) / 1500;
 
@@ -1051,8 +1051,8 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv)
 		return;
 
 	/* Analyze signal for disconnected antenna */
-	if (priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist) {
+	if (priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist) {
 		/* Disable disconnected antenna algorithm for advanced
 		   bt coex, assuming valid antennas are connected */
 		data->active_chains = priv->nvm_data->valid_rx_ant;
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index beb525c..f1b8df1 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -568,16 +568,61 @@ struct iwl_hw_params {
 	const struct iwl_sensitivity_ranges *sens;
 };
 
+/**
+ * struct iwl_dvm_bt_params - DVM specific BT (coex) parameters
+ * @advanced_bt_coexist: support advanced bt coexist
+ * @bt_init_traffic_load: specify initial bt traffic load
+ * @bt_prio_boost: default bt priority boost value
+ * @agg_time_limit: maximum number of uSec in aggregation
+ * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode
+ */
+struct iwl_dvm_bt_params {
+	bool advanced_bt_coexist;
+	u8 bt_init_traffic_load;
+	u32 bt_prio_boost;
+	u16 agg_time_limit;
+	bool bt_sco_disable;
+	bool bt_session_2;
+};
+
+/**
+ * struct iwl_dvm_cfg - DVM firmware specific device configuration
+ * @set_hw_params: set hardware parameters
+ * @set_channel_switch: send channel switch command
+ * @nic_config: apply device specific configuration
+ * @temperature: read temperature
+ * @adv_thermal_throttle: support advance thermal throttle
+ * @support_ct_kill_exit: support ct kill exit condition
+ * @plcp_delta_threshold: plcp error rate threshold used to trigger
+ *	radio tuning when there is a high receiving plcp error rate
+ * @chain_noise_scale: default chain noise scale used for gain computation
+ * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up
+ * @no_idle_support: do not support idle mode
+ * @bt_params: pointer to BT parameters
+ * @need_temp_offset_calib: need to perform temperature offset calibration
+ * @no_xtal_calib: some devices do not need crystal calibration data,
+ *	don't send it to those
+ * @temp_offset_v2: support v2 of temperature offset calibration
+ * @adv_pm: advanced power management
+ */
 struct iwl_dvm_cfg {
-	/* set hw dependent parameters */
 	void (*set_hw_params)(struct iwl_priv *priv);
 	int (*set_channel_switch)(struct iwl_priv *priv,
 				  struct ieee80211_channel_switch *ch_switch);
-	/* device specific configuration */
 	void (*nic_config)(struct iwl_priv *priv);
-
-	/* temperature */
 	void (*temperature)(struct iwl_priv *priv);
+
+	const struct iwl_dvm_bt_params *bt_params;
+	s32 chain_noise_scale;
+	u8 plcp_delta_threshold;
+	bool adv_thermal_throttle;
+	bool support_ct_kill_exit;
+	bool hd_v2;
+	bool no_idle_support;
+	bool need_temp_offset_calib;
+	bool no_xtal_calib;
+	bool temp_offset_v2;
+	bool adv_pm;
 };
 
 struct iwl_wipan_noa_data {
diff --git a/drivers/net/wireless/iwlwifi/dvm/devices.c b/drivers/net/wireless/iwlwifi/dvm/devices.c
index 5878bbb..5a1c218 100644
--- a/drivers/net/wireless/iwlwifi/dvm/devices.c
+++ b/drivers/net/wireless/iwlwifi/dvm/devices.c
@@ -178,6 +178,9 @@ struct iwl_dvm_cfg iwl_dvm_1000_cfg = {
 	.set_hw_params = iwl1000_hw_set_hw_params,
 	.nic_config = iwl1000_nic_config,
 	.temperature = iwlagn_temperature,
+	.support_ct_kill_exit = true,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
 };
 
 
@@ -236,12 +239,52 @@ struct iwl_dvm_cfg iwl_dvm_2000_cfg = {
 	.set_hw_params = iwl2000_hw_set_hw_params,
 	.nic_config = iwl2000_nic_config,
 	.temperature = iwlagn_temperature,
+	.adv_thermal_throttle = true,
+	.support_ct_kill_exit = true,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
+	.hd_v2 = true,
+	.need_temp_offset_calib = true,
+	.temp_offset_v2 = true,
+};
+
+struct iwl_dvm_cfg iwl_dvm_105_cfg = {
+	.set_hw_params = iwl2000_hw_set_hw_params,
+	.nic_config = iwl2000_nic_config,
+	.temperature = iwlagn_temperature,
+	.adv_thermal_throttle = true,
+	.support_ct_kill_exit = true,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
+	.hd_v2 = true,
+	.need_temp_offset_calib = true,
+	.temp_offset_v2 = true,
+	.adv_pm = true,
+};
+
+static const struct iwl_dvm_bt_params iwl2030_bt_params = {
+	/* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
+	.advanced_bt_coexist = true,
+	.agg_time_limit = BT_AGG_THRESHOLD_DEF,
+	.bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
+	.bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT32,
+	.bt_sco_disable = true,
+	.bt_session_2 = true,
 };
 
 struct iwl_dvm_cfg iwl_dvm_2030_cfg = {
 	.set_hw_params = iwl2000_hw_set_hw_params,
 	.nic_config = iwl2000_nic_config,
 	.temperature = iwlagn_temperature,
+	.adv_thermal_throttle = true,
+	.support_ct_kill_exit = true,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
+	.hd_v2 = true,
+	.bt_params = &iwl2030_bt_params,
+	.need_temp_offset_calib = true,
+	.temp_offset_v2 = true,
+	.adv_pm = true,
 };
 
 /*
@@ -424,12 +467,19 @@ struct iwl_dvm_cfg iwl_dvm_5000_cfg = {
 	.set_hw_params = iwl5000_hw_set_hw_params,
 	.set_channel_switch = iwl5000_hw_channel_switch,
 	.temperature = iwlagn_temperature,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
+	.no_idle_support = true,
 };
 
 struct iwl_dvm_cfg iwl_dvm_5150_cfg = {
 	.set_hw_params = iwl5150_hw_set_hw_params,
 	.set_channel_switch = iwl5000_hw_channel_switch,
 	.temperature = iwl5150_temperature,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
+	.no_idle_support = true,
+	.no_xtal_calib = true,
 };
 
 
@@ -589,6 +639,42 @@ struct iwl_dvm_cfg iwl_dvm_6000_cfg = {
 	.set_channel_switch = iwl6000_hw_channel_switch,
 	.nic_config = iwl6000_nic_config,
 	.temperature = iwlagn_temperature,
+	.adv_thermal_throttle = true,
+	.support_ct_kill_exit = true,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
+};
+
+const struct iwl_dvm_cfg iwl_dvm_6005_cfg = {
+	.set_hw_params = iwl6000_hw_set_hw_params,
+	.set_channel_switch = iwl6000_hw_channel_switch,
+	.nic_config = iwl6000_nic_config,
+	.temperature = iwlagn_temperature,
+	.adv_thermal_throttle = true,
+	.support_ct_kill_exit = true,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
+	.need_temp_offset_calib = true,
+};
+
+struct iwl_dvm_cfg iwl_dvm_6050_cfg = {
+	.set_hw_params = iwl6000_hw_set_hw_params,
+	.set_channel_switch = iwl6000_hw_channel_switch,
+	.nic_config = iwl6000_nic_config,
+	.temperature = iwlagn_temperature,
+	.adv_thermal_throttle = true,
+	.support_ct_kill_exit = true,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.chain_noise_scale = 1500,
+};
+
+static const struct iwl_dvm_bt_params iwl6000_bt_params = {
+	/* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
+	.advanced_bt_coexist = true,
+	.agg_time_limit = BT_AGG_THRESHOLD_DEF,
+	.bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
+	.bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT,
+	.bt_sco_disable = true,
 };
 
 struct iwl_dvm_cfg iwl_dvm_6030_cfg = {
@@ -596,4 +682,11 @@ struct iwl_dvm_cfg iwl_dvm_6030_cfg = {
 	.set_channel_switch = iwl6000_hw_channel_switch,
 	.nic_config = iwl6000_nic_config,
 	.temperature = iwlagn_temperature,
+	.adv_thermal_throttle = true,
+	.support_ct_kill_exit = true,
+	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
+	.chain_noise_scale = 1000,
+	.bt_params = &iwl6000_bt_params,
+	.need_temp_offset_calib = true,
+	.adv_pm = true,
 };
diff --git a/drivers/net/wireless/iwlwifi/dvm/lib.c b/drivers/net/wireless/iwlwifi/dvm/lib.c
index 54f5533..9879550 100644
--- a/drivers/net/wireless/iwlwifi/dvm/lib.c
+++ b/drivers/net/wireless/iwlwifi/dvm/lib.c
@@ -254,23 +254,23 @@ void iwlagn_send_advance_bt_config(struct iwl_priv *priv)
 	BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) !=
 			sizeof(basic.bt3_lookup_table));
 
-	if (priv->cfg->bt_params) {
+	if (priv->lib->bt_params) {
 		/*
 		 * newer generation of devices (2000 series and newer)
 		 * use the version 2 of the bt command
 		 * we need to make sure sending the host command
 		 * with correct data structure to avoid uCode assert
 		 */
-		if (priv->cfg->bt_params->bt_session_2) {
+		if (priv->lib->bt_params->bt_session_2) {
 			bt_cmd_v2.prio_boost = cpu_to_le32(
-				priv->cfg->bt_params->bt_prio_boost);
+				priv->lib->bt_params->bt_prio_boost);
 			bt_cmd_v2.tx_prio_boost = 0;
 			bt_cmd_v2.rx_prio_boost = 0;
 		} else {
 			/* older version only has 8 bits */
-			WARN_ON(priv->cfg->bt_params->bt_prio_boost & ~0xFF);
+			WARN_ON(priv->lib->bt_params->bt_prio_boost & ~0xFF);
 			bt_cmd_v1.prio_boost =
-				priv->cfg->bt_params->bt_prio_boost;
+				priv->lib->bt_params->bt_prio_boost;
 			bt_cmd_v1.tx_prio_boost = 0;
 			bt_cmd_v1.rx_prio_boost = 0;
 		}
@@ -330,7 +330,7 @@ void iwlagn_send_advance_bt_config(struct iwl_priv *priv)
 		       priv->bt_full_concurrent ?
 		       "full concurrency" : "3-wire");
 
-	if (priv->cfg->bt_params->bt_session_2) {
+	if (priv->lib->bt_params->bt_session_2) {
 		memcpy(&bt_cmd_v2.basic, &basic,
 			sizeof(basic));
 		ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG,
@@ -758,8 +758,8 @@ static bool is_single_rx_stream(struct iwl_priv *priv)
  */
 static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
 {
-	if (priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist &&
+	if (priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist &&
 	    (priv->bt_full_concurrent ||
 	     priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
 		/*
@@ -830,8 +830,8 @@ void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 	else
 		active_chains = priv->nvm_data->valid_rx_ant;
 
-	if (priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist &&
+	if (priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist &&
 	    (priv->bt_full_concurrent ||
 	     priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
 		/*
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index 7002153..ac7ed3f 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -1284,8 +1284,8 @@ static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw,
 	IWL_DEBUG_MAC80211(priv, "enter\n");
 	mutex_lock(&priv->mutex);
 
-	if (priv->cfg->bt_params &&
-			priv->cfg->bt_params->advanced_bt_coexist) {
+	if (priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist) {
 		if (rssi_event == RSSI_EVENT_LOW)
 			priv->bt_enable_pspoll = true;
 		else if (rssi_event == RSSI_EVENT_HIGH)
@@ -1395,7 +1395,7 @@ static int iwl_setup_interface(struct iwl_priv *priv,
 		return err;
 	}
 
-	if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist &&
+	if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist &&
 	    vif->type == NL80211_IFTYPE_ADHOC) {
 		/*
 		 * pretend to have high BT traffic as long as we
diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 0c77222..68f7546 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -615,7 +615,7 @@ static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
 
 	priv->thermal_throttle.ct_kill_toggle = false;
 
-	if (priv->cfg->base_params->support_ct_kill_exit) {
+	if (priv->lib->support_ct_kill_exit) {
 		adv_cmd.critical_temperature_enter =
 			cpu_to_le32(priv->hw_params.ct_kill_threshold);
 		adv_cmd.critical_temperature_exit =
@@ -732,10 +732,10 @@ int iwl_alive_start(struct iwl_priv *priv)
 	}
 
 	/* download priority table before any calibration request */
-	if (priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist) {
+	if (priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist) {
 		/* Configure Bluetooth device coexistence support */
-		if (priv->cfg->bt_params->bt_sco_disable)
+		if (priv->lib->bt_params->bt_sco_disable)
 			priv->bt_enable_pspoll = false;
 		else
 			priv->bt_enable_pspoll = true;
@@ -873,9 +873,9 @@ void iwl_down(struct iwl_priv *priv)
 	priv->bt_status = 0;
 	priv->cur_rssi_ctx = NULL;
 	priv->bt_is_sco = 0;
-	if (priv->cfg->bt_params)
+	if (priv->lib->bt_params)
 		priv->bt_traffic_load =
-			 priv->cfg->bt_params->bt_init_traffic_load;
+			 priv->lib->bt_params->bt_init_traffic_load;
 	else
 		priv->bt_traffic_load = 0;
 	priv->bt_full_concurrent = false;
@@ -1058,7 +1058,7 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
 
 	iwl_setup_scan_deferred_work(priv);
 
-	if (priv->cfg->bt_params)
+	if (priv->lib->bt_params)
 		iwlagn_bt_setup_deferred_work(priv);
 
 	init_timer(&priv->statistics_periodic);
@@ -1072,7 +1072,7 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv)
 
 void iwl_cancel_deferred_work(struct iwl_priv *priv)
 {
-	if (priv->cfg->bt_params)
+	if (priv->lib->bt_params)
 		iwlagn_bt_cancel_deferred_work(priv);
 
 	cancel_work_sync(&priv->run_time_calib_work);
@@ -1098,8 +1098,7 @@ static int iwl_init_drv(struct iwl_priv *priv)
 
 	priv->band = IEEE80211_BAND_2GHZ;
 
-	priv->plcp_delta_threshold =
-		priv->cfg->base_params->plcp_delta_threshold;
+	priv->plcp_delta_threshold = priv->lib->plcp_delta_threshold;
 
 	priv->iw_mode = NL80211_IFTYPE_STATION;
 	priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
@@ -1116,8 +1115,8 @@ static int iwl_init_drv(struct iwl_priv *priv)
 	iwl_init_scan_params(priv);
 
 	/* init bt coex */
-	if (priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist) {
+	if (priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist) {
 		priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
 		priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
 		priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
@@ -1267,9 +1266,11 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 		priv->lib = &iwl_dvm_1000_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_2000:
-	case IWL_DEVICE_FAMILY_105:
 		priv->lib = &iwl_dvm_2000_cfg;
 		break;
+	case IWL_DEVICE_FAMILY_105:
+		priv->lib = &iwl_dvm_105_cfg;
+		break;
 	case IWL_DEVICE_FAMILY_2030:
 	case IWL_DEVICE_FAMILY_135:
 		priv->lib = &iwl_dvm_2030_cfg;
@@ -1281,11 +1282,15 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 		priv->lib = &iwl_dvm_5150_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_6000:
-	case IWL_DEVICE_FAMILY_6005:
 	case IWL_DEVICE_FAMILY_6000i:
+		priv->lib = &iwl_dvm_6000_cfg;
+		break;
+	case IWL_DEVICE_FAMILY_6005:
+		priv->lib = &iwl_dvm_6005_cfg;
+		break;
 	case IWL_DEVICE_FAMILY_6050:
 	case IWL_DEVICE_FAMILY_6150:
-		priv->lib = &iwl_dvm_6000_cfg;
+		priv->lib = &iwl_dvm_6050_cfg;
 		break;
 	case IWL_DEVICE_FAMILY_6030:
 		priv->lib = &iwl_dvm_6030_cfg;
diff --git a/drivers/net/wireless/iwlwifi/dvm/power.c b/drivers/net/wireless/iwlwifi/dvm/power.c
index bd69018..77cb597 100644
--- a/drivers/net/wireless/iwlwifi/dvm/power.c
+++ b/drivers/net/wireless/iwlwifi/dvm/power.c
@@ -163,7 +163,7 @@ static void iwl_static_sleep_cmd(struct iwl_priv *priv,
 	u8 skip;
 	u32 slp_itrvl;
 
-	if (priv->cfg->adv_pm) {
+	if (priv->lib->adv_pm) {
 		table = apm_range_2;
 		if (period <= IWL_DTIM_RANGE_1_MAX)
 			table = apm_range_1;
@@ -217,7 +217,7 @@ static void iwl_static_sleep_cmd(struct iwl_priv *priv,
 		cmd->flags &= ~IWL_POWER_SHADOW_REG_ENA;
 
 	if (iwl_advanced_bt_coexist(priv)) {
-		if (!priv->cfg->bt_params->bt_sco_disable)
+		if (!priv->lib->bt_params->bt_sco_disable)
 			cmd->flags |= IWL_POWER_BT_SCO_ENA;
 		else
 			cmd->flags &= ~IWL_POWER_BT_SCO_ENA;
@@ -293,7 +293,7 @@ static void iwl_power_build_cmd(struct iwl_priv *priv,
 
 	if (priv->wowlan)
 		iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, dtimper);
-	else if (!priv->cfg->base_params->no_idle_support &&
+	else if (!priv->lib->no_idle_support &&
 		 priv->hw->conf.flags & IEEE80211_CONF_IDLE)
 		iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, 20);
 	else if (iwl_tt_is_low_power_state(priv)) {
diff --git a/drivers/net/wireless/iwlwifi/dvm/rs.c b/drivers/net/wireless/iwlwifi/dvm/rs.c
index 907bd6e..94314a8 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rs.c
@@ -1088,7 +1088,7 @@ done:
 	    (priv->tm_fixed_rate != lq_sta->dbg_fixed_rate))
 		rs_program_fix_rate(priv, lq_sta);
 #endif
-	if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist)
+	if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist)
 		rs_bt_update_lq(priv, ctx, lq_sta);
 }
 
@@ -3064,11 +3064,11 @@ static void rs_fill_link_cmd(struct iwl_priv *priv,
 	 * overwrite if needed, pass aggregation time limit
 	 * to uCode in uSec
 	 */
-	if (priv && priv->cfg->bt_params &&
-	    priv->cfg->bt_params->agg_time_limit &&
+	if (priv && priv->lib->bt_params &&
+	    priv->lib->bt_params->agg_time_limit &&
 	    priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)
 		lq_cmd->agg_params.agg_time_limit =
-			cpu_to_le16(priv->cfg->bt_params->agg_time_limit);
+			cpu_to_le16(priv->lib->bt_params->agg_time_limit);
 }
 
 static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
diff --git a/drivers/net/wireless/iwlwifi/dvm/rx.c b/drivers/net/wireless/iwlwifi/dvm/rx.c
index a4eed20..2f3fd16 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rx.c
@@ -1102,7 +1102,7 @@ void iwl_setup_rx_handlers(struct iwl_priv *priv)
 	iwl_notification_wait_init(&priv->notif_wait);
 
 	/* Set up BT Rx handlers */
-	if (priv->cfg->bt_params)
+	if (priv->lib->bt_params)
 		iwlagn_bt_rx_handler_setup(priv);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/scan.c b/drivers/net/wireless/iwlwifi/dvm/scan.c
index d69b558..8c686a5 100644
--- a/drivers/net/wireless/iwlwifi/dvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/dvm/scan.c
@@ -801,8 +801,8 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 		 * Internal scans are passive, so we can indiscriminately set
 		 * the BT ignore flag on 2.4 GHz since it applies to TX only.
 		 */
-		if (priv->cfg->bt_params &&
-		    priv->cfg->bt_params->advanced_bt_coexist)
+		if (priv->lib->bt_params &&
+		    priv->lib->bt_params->advanced_bt_coexist)
 			scan->tx_cmd.tx_flags |= TX_CMD_FLG_IGNORE_BT;
 		break;
 	case IEEE80211_BAND_5GHZ:
@@ -844,8 +844,8 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 	band = priv->scan_band;
 
 	if (band == IEEE80211_BAND_2GHZ &&
-	    priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist) {
+	    priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist) {
 		/* transmit 2.4 GHz probes only on first antenna */
 		scan_tx_antennas = first_antenna(scan_tx_antennas);
 	}
@@ -873,8 +873,8 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
 
 		rx_ant = first_antenna(active_chains);
 	}
-	if (priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist &&
+	if (priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist &&
 	    priv->bt_full_concurrent) {
 		/* operated as 1x1 in full concurrency mode */
 		rx_ant = first_antenna(rx_ant);
diff --git a/drivers/net/wireless/iwlwifi/dvm/tt.c b/drivers/net/wireless/iwlwifi/dvm/tt.c
index 03f9bc0..fbeee08 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tt.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tt.c
@@ -627,7 +627,7 @@ void iwl_tt_initialize(struct iwl_priv *priv)
 	INIT_WORK(&priv->ct_enter, iwl_bg_ct_enter);
 	INIT_WORK(&priv->ct_exit, iwl_bg_ct_exit);
 
-	if (priv->cfg->base_params->adv_thermal_throttle) {
+	if (priv->lib->adv_thermal_throttle) {
 		IWL_DEBUG_TEMP(priv, "Advanced Thermal Throttling\n");
 		tt->restriction = kcalloc(IWL_TI_STATE_MAX,
 					  sizeof(struct iwl_tt_restriction),
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index a900aaf..353a053 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -83,8 +83,8 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv,
 	else if (ieee80211_is_back_req(fc))
 		tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK;
 	else if (info->band == IEEE80211_BAND_2GHZ &&
-		 priv->cfg->bt_params &&
-		 priv->cfg->bt_params->advanced_bt_coexist &&
+		 priv->lib->bt_params &&
+		 priv->lib->bt_params->advanced_bt_coexist &&
 		 (ieee80211_is_auth(fc) || ieee80211_is_assoc_req(fc) ||
 		 ieee80211_is_reassoc_req(fc) ||
 		 skb->protocol == cpu_to_be16(ETH_P_PAE)))
@@ -202,8 +202,8 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv,
 		rate_flags |= RATE_MCS_CCK_MSK;
 
 	/* Set up antennas */
-	 if (priv->cfg->bt_params &&
-	     priv->cfg->bt_params->advanced_bt_coexist &&
+	 if (priv->lib->bt_params &&
+	     priv->lib->bt_params->advanced_bt_coexist &&
 	     priv->bt_full_concurrent) {
 		/* operated as 1x1 in full concurrency mode */
 		priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
@@ -986,8 +986,8 @@ static void iwl_rx_reply_tx_agg(struct iwl_priv *priv,
 	 * notification again.
 	 */
 	if (tx_resp->bt_kill_count && tx_resp->frame_count == 1 &&
-	    priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist) {
+	    priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist) {
 		IWL_DEBUG_COEX(priv, "receive reply tx w/ bt_kill\n");
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c
index 0a1cdc5..86270b6 100644
--- a/drivers/net/wireless/iwlwifi/dvm/ucode.c
+++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c
@@ -132,8 +132,8 @@ int iwl_init_alive_start(struct iwl_priv *priv)
 {
 	int ret;
 
-	if (priv->cfg->bt_params &&
-	    priv->cfg->bt_params->advanced_bt_coexist) {
+	if (priv->lib->bt_params &&
+	    priv->lib->bt_params->advanced_bt_coexist) {
 		/*
 		 * Tell uCode we are ready to perform calibration
 		 * need to perform this before any calibration
@@ -155,8 +155,8 @@ int iwl_init_alive_start(struct iwl_priv *priv)
 	 * temperature offset calibration is only needed for runtime ucode,
 	 * so prepare the value now.
 	 */
-	if (priv->cfg->need_temp_offset_calib) {
-		if (priv->cfg->temp_offset_v2)
+	if (priv->lib->need_temp_offset_calib) {
+		if (priv->lib->temp_offset_v2)
 			return iwl_set_temperature_offset_calib_v2(priv);
 		else
 			return iwl_set_temperature_offset_calib(priv);
@@ -277,7 +277,7 @@ static int iwl_alive_notify(struct iwl_priv *priv)
 	if (ret)
 		return ret;
 
-	if (!priv->cfg->no_xtal_calib) {
+	if (!priv->lib->no_xtal_calib) {
 		ret = iwl_set_Xtal_calib(priv);
 		if (ret)
 			return ret;
diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index c080ae3..0d2afe0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -60,9 +60,6 @@ static const struct iwl_base_params iwl1000_base_params = {
 	.max_ll_items = OTP_MAX_LL_ITEMS_1000,
 	.shadow_ram_support = false,
 	.led_compensation = 51,
-	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF,
-	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_WATCHDOG_DISABLED,
 	.max_event_log_size = 128,
 };
diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c
index a6ddd2f..c727ec7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-2000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-2000.c
@@ -72,14 +72,9 @@ static const struct iwl_base_params iwl2000_base_params = {
 	.max_ll_items = OTP_MAX_LL_ITEMS_2x00,
 	.shadow_ram_support = true,
 	.led_compensation = 51,
-	.adv_thermal_throttle = true,
-	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
-	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_DEF_WD_TIMEOUT,
 	.max_event_log_size = 512,
 	.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
-	.hd_v2 = true,
 };
 
 
@@ -90,14 +85,9 @@ static const struct iwl_base_params iwl2030_base_params = {
 	.max_ll_items = OTP_MAX_LL_ITEMS_2x00,
 	.shadow_ram_support = true,
 	.led_compensation = 57,
-	.adv_thermal_throttle = true,
-	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
-	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_LONG_WD_TIMEOUT,
 	.max_event_log_size = 512,
 	.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
-	.hd_v2 = true,
 };
 
 static const struct iwl_ht_params iwl2000_ht_params = {
@@ -106,16 +96,6 @@ static const struct iwl_ht_params iwl2000_ht_params = {
 	.ht40_bands = BIT(IEEE80211_BAND_2GHZ),
 };
 
-static const struct iwl_bt_params iwl2030_bt_params = {
-	/* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
-	.advanced_bt_coexist = true,
-	.agg_time_limit = BT_AGG_THRESHOLD_DEF,
-	.bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
-	.bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT32,
-	.bt_sco_disable = true,
-	.bt_session_2 = true,
-};
-
 static const struct iwl_eeprom_params iwl20x0_eeprom_params = {
 	.regulatory_bands = {
 		EEPROM_REG_BAND_1_CHANNELS,
@@ -137,12 +117,10 @@ static const struct iwl_eeprom_params iwl20x0_eeprom_params = {
 	.device_family = IWL_DEVICE_FAMILY_2000,		\
 	.max_inst_size = IWL60_RTC_INST_SIZE,			\
 	.max_data_size = IWL60_RTC_DATA_SIZE,			\
-	.nvm_ver = EEPROM_2000_EEPROM_VERSION,		\
-	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,	\
+	.nvm_ver = EEPROM_2000_EEPROM_VERSION,			\
+	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,		\
 	.base_params = &iwl2000_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
-	.need_temp_offset_calib = true,				\
-	.temp_offset_v2 = true,					\
 	.led_mode = IWL_LED_RF_STATE
 
 const struct iwl_cfg iwl2000_2bgn_cfg = {
@@ -168,12 +146,8 @@ const struct iwl_cfg iwl2000_2bgn_d_cfg = {
 	.nvm_ver = EEPROM_2000_EEPROM_VERSION,		\
 	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,	\
 	.base_params = &iwl2030_base_params,			\
-	.bt_params = &iwl2030_bt_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
-	.need_temp_offset_calib = true,				\
-	.temp_offset_v2 = true,					\
-	.led_mode = IWL_LED_RF_STATE,				\
-	.adv_pm = true
+	.led_mode = IWL_LED_RF_STATE
 
 const struct iwl_cfg iwl2030_2bgn_cfg = {
 	.name = "Intel(R) Centrino(R) Wireless-N 2230 BGN",
@@ -193,10 +167,7 @@ const struct iwl_cfg iwl2030_2bgn_cfg = {
 	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,	\
 	.base_params = &iwl2000_base_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
-	.need_temp_offset_calib = true,				\
-	.temp_offset_v2 = true,					\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.adv_pm = true,						\
 	.rx_with_siso_diversity = true
 
 const struct iwl_cfg iwl105_bgn_cfg = {
@@ -222,12 +193,8 @@ const struct iwl_cfg iwl105_bgn_d_cfg = {
 	.nvm_ver = EEPROM_2000_EEPROM_VERSION,		\
 	.nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION,	\
 	.base_params = &iwl2030_base_params,			\
-	.bt_params = &iwl2030_bt_params,			\
 	.eeprom_params = &iwl20x0_eeprom_params,		\
-	.need_temp_offset_calib = true,				\
-	.temp_offset_v2 = true,					\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.adv_pm = true,						\
 	.rx_with_siso_diversity = true
 
 const struct iwl_cfg iwl135_bgn_cfg = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 403f3f2..ecc01e1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -59,11 +59,8 @@ static const struct iwl_base_params iwl5000_base_params = {
 	.num_of_queues = IWLAGN_NUM_QUEUES,
 	.pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
 	.led_compensation = 51,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF,
-	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_WATCHDOG_DISABLED,
 	.max_event_log_size = 512,
-	.no_idle_support = true,
 };
 
 static const struct iwl_ht_params iwl5000_ht_params = {
@@ -159,7 +156,6 @@ const struct iwl_cfg iwl5350_agn_cfg = {
 	.nvm_calib_ver = EEPROM_5050_TX_POWER_VERSION,	\
 	.base_params = &iwl5000_base_params,			\
 	.eeprom_params = &iwl5000_eeprom_params,		\
-	.no_xtal_calib = true,					\
 	.led_mode = IWL_LED_BLINK,				\
 	.internal_wimax_coex = true
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index b5ab8d1..30d45e2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -82,10 +82,6 @@ static const struct iwl_base_params iwl6000_base_params = {
 	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 	.shadow_ram_support = true,
 	.led_compensation = 51,
-	.adv_thermal_throttle = true,
-	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
-	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_DEF_WD_TIMEOUT,
 	.max_event_log_size = 512,
 	.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
@@ -98,10 +94,6 @@ static const struct iwl_base_params iwl6050_base_params = {
 	.max_ll_items = OTP_MAX_LL_ITEMS_6x50,
 	.shadow_ram_support = true,
 	.led_compensation = 51,
-	.adv_thermal_throttle = true,
-	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
-	.chain_noise_scale = 1500,
 	.wd_timeout = IWL_DEF_WD_TIMEOUT,
 	.max_event_log_size = 1024,
 	.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
@@ -114,10 +106,6 @@ static const struct iwl_base_params iwl6000_g2_base_params = {
 	.max_ll_items = OTP_MAX_LL_ITEMS_6x00,
 	.shadow_ram_support = true,
 	.led_compensation = 57,
-	.adv_thermal_throttle = true,
-	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
-	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_LONG_WD_TIMEOUT,
 	.max_event_log_size = 512,
 	.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
@@ -129,15 +117,6 @@ static const struct iwl_ht_params iwl6000_ht_params = {
 	.ht40_bands = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ),
 };
 
-static const struct iwl_bt_params iwl6000_bt_params = {
-	/* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
-	.advanced_bt_coexist = true,
-	.agg_time_limit = BT_AGG_THRESHOLD_DEF,
-	.bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
-	.bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT,
-	.bt_sco_disable = true,
-};
-
 static const struct iwl_eeprom_params iwl6000_eeprom_params = {
 	.regulatory_bands = {
 		EEPROM_REG_BAND_1_CHANNELS,
@@ -163,7 +142,6 @@ static const struct iwl_eeprom_params iwl6000_eeprom_params = {
 	.nvm_calib_ver = EEPROM_6005_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.need_temp_offset_calib = true,				\
 	.led_mode = IWL_LED_RF_STATE
 
 const struct iwl_cfg iwl6005_2agn_cfg = {
@@ -217,11 +195,8 @@ const struct iwl_cfg iwl6005_2agn_mow2_cfg = {
 	.nvm_ver = EEPROM_6030_EEPROM_VERSION,		\
 	.nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
-	.bt_params = &iwl6000_bt_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.need_temp_offset_calib = true,				\
-	.led_mode = IWL_LED_RF_STATE,				\
-	.adv_pm = true						\
+	.led_mode = IWL_LED_RF_STATE
 
 const struct iwl_cfg iwl6030_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6230 AGN",
@@ -256,11 +231,8 @@ const struct iwl_cfg iwl6030_2bg_cfg = {
 	.nvm_ver = EEPROM_6030_EEPROM_VERSION,		\
 	.nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION,	\
 	.base_params = &iwl6000_g2_base_params,			\
-	.bt_params = &iwl6000_bt_params,			\
 	.eeprom_params = &iwl6000_eeprom_params,		\
-	.need_temp_offset_calib = true,				\
-	.led_mode = IWL_LED_RF_STATE,				\
-	.adv_pm = true
+	.led_mode = IWL_LED_RF_STATE
 
 const struct iwl_cfg iwl6035_2agn_cfg = {
 	.name = "Intel(R) Centrino(R) Advanced-N 6235 AGN",
diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c
index c9aae2a..d4f3b48 100644
--- a/drivers/net/wireless/iwlwifi/iwl-7000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-7000.c
@@ -96,10 +96,6 @@ static const struct iwl_base_params iwl7000_base_params = {
 	.pll_cfg_val = 0,
 	.shadow_ram_support = true,
 	.led_compensation = 57,
-	.adv_thermal_throttle = true,
-	.support_ct_kill_exit = true,
-	.plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF,
-	.chain_noise_scale = 1000,
 	.wd_timeout = IWL_LONG_WD_TIMEOUT,
 	.max_event_log_size = 512,
 	.shadow_reg_enable = true,
@@ -118,10 +114,7 @@ static const struct iwl_ht_params iwl7000_ht_params = {
 	.max_inst_size = IWL60_RTC_INST_SIZE,			\
 	.max_data_size = IWL60_RTC_DATA_SIZE,			\
 	.base_params = &iwl7000_base_params,			\
-	/* TODO: .bt_params? */					\
-	.need_temp_offset_calib = true,				\
-	.led_mode = IWL_LED_RF_STATE,				\
-	.adv_pm = true						\
+	.led_mode = IWL_LED_RF_STATE
 
 
 const struct iwl_cfg iwl7260_2ac_cfg = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index c3c9268..a193832 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -136,17 +136,9 @@ enum iwl_led_mode {
  * @led_compensation: compensate on the led on/off time per HW according
  *	to the deviation to achieve the desired led frequency.
  *	The detail algorithm is described in iwl-led.c
- * @chain_noise_num_beacons: number of beacons used to compute chain noise
- * @adv_thermal_throttle: support advance thermal throttle
- * @support_ct_kill_exit: support ct kill exit condition
- * @plcp_delta_threshold: plcp error rate threshold used to trigger
- *	radio tuning when there is a high receiving plcp error rate
- * @chain_noise_scale: default chain noise scale used for gain computation
  * @wd_timeout: TX queues watchdog timeout
  * @max_event_log_size: size of event log buffer size for ucode event logging
  * @shadow_reg_enable: HW shadow register support
- * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up
- * @no_idle_support: do not support idle mode
  */
 struct iwl_base_params {
 	int eeprom_size;
@@ -157,31 +149,9 @@ struct iwl_base_params {
 	const u16 max_ll_items;
 	const bool shadow_ram_support;
 	u16 led_compensation;
-	bool adv_thermal_throttle;
-	bool support_ct_kill_exit;
-	u8 plcp_delta_threshold;
-	s32 chain_noise_scale;
 	unsigned int wd_timeout;
 	u32 max_event_log_size;
 	const bool shadow_reg_enable;
-	const bool hd_v2;
-	const bool no_idle_support;
-};
-
-/*
- * @advanced_bt_coexist: support advanced bt coexist
- * @bt_init_traffic_load: specify initial bt traffic load
- * @bt_prio_boost: default bt priority boost value
- * @agg_time_limit: maximum number of uSec in aggregation
- * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode
- */
-struct iwl_bt_params {
-	bool advanced_bt_coexist;
-	u8 bt_init_traffic_load;
-	u32 bt_prio_boost;
-	u16 agg_time_limit;
-	bool bt_sco_disable;
-	bool bt_session_2;
 };
 
 /*
@@ -231,16 +201,10 @@ struct iwl_eeprom_params {
  * @nvm_calib_ver: NVM calibration version
  * @lib: pointer to the lib ops
  * @base_params: pointer to basic parameters
- * @ht_params: point to ht patameters
- * @bt_params: pointer to bt parameters
- * @need_temp_offset_calib: need to perform temperature offset calibration
- * @no_xtal_calib: some devices do not need crystal calibration data,
- *	don't send it to those
+ * @ht_params: point to ht parameters
  * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
- * @adv_pm: advance power management
  * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
  * @internal_wimax_coex: internal wifi/wimax combo device
- * @temp_offset_v2: support v2 of temperature offset calibration
  *
  * We enable the driver to be backward compatible wrt. hardware features.
  * API differences in uCode shouldn't be handled here but through TLVs
@@ -264,15 +228,10 @@ struct iwl_cfg {
 	const struct iwl_base_params *base_params;
 	/* params likely to change within a device family */
 	const struct iwl_ht_params *ht_params;
-	const struct iwl_bt_params *bt_params;
 	const struct iwl_eeprom_params *eeprom_params;
-	const bool need_temp_offset_calib; /* if used set to true */
-	const bool no_xtal_calib;
 	enum iwl_led_mode led_mode;
-	const bool adv_pm;
 	const bool rx_with_siso_diversity;
 	const bool internal_wimax_coex;
-	const bool temp_offset_v2;
 };
 
 /*
-- 
cgit v0.10.2


From 129219c0fd234164ebc19e8694641927317eda13 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 17 May 2013 10:38:21 +0200
Subject: iwlwifi: dvm: constify configuration structs

The pointer that gets used is already const, so the
structs can obviously be const as well.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/agn.h b/drivers/net/wireless/iwlwifi/dvm/agn.h
index df64a54..de2c951 100644
--- a/drivers/net/wireless/iwlwifi/dvm/agn.h
+++ b/drivers/net/wireless/iwlwifi/dvm/agn.h
@@ -76,16 +76,16 @@
 #define IWL_INVALID_STATION	255
 
 /* device operations */
-extern struct iwl_dvm_cfg iwl_dvm_1000_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_2000_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_105_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_2030_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_5000_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_5150_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_6000_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_6005_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_6050_cfg;
-extern struct iwl_dvm_cfg iwl_dvm_6030_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_1000_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_2000_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_105_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_2030_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_5000_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_5150_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_6000_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_6005_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_6050_cfg;
+extern const struct iwl_dvm_cfg iwl_dvm_6030_cfg;
 
 
 #define TIME_UNIT		1024
diff --git a/drivers/net/wireless/iwlwifi/dvm/devices.c b/drivers/net/wireless/iwlwifi/dvm/devices.c
index 5a1c218..352c6cb 100644
--- a/drivers/net/wireless/iwlwifi/dvm/devices.c
+++ b/drivers/net/wireless/iwlwifi/dvm/devices.c
@@ -174,7 +174,7 @@ static void iwl1000_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.sens = &iwl1000_sensitivity;
 }
 
-struct iwl_dvm_cfg iwl_dvm_1000_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_1000_cfg = {
 	.set_hw_params = iwl1000_hw_set_hw_params,
 	.nic_config = iwl1000_nic_config,
 	.temperature = iwlagn_temperature,
@@ -235,7 +235,7 @@ static void iwl2000_hw_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.sens = &iwl2000_sensitivity;
 }
 
-struct iwl_dvm_cfg iwl_dvm_2000_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_2000_cfg = {
 	.set_hw_params = iwl2000_hw_set_hw_params,
 	.nic_config = iwl2000_nic_config,
 	.temperature = iwlagn_temperature,
@@ -248,7 +248,7 @@ struct iwl_dvm_cfg iwl_dvm_2000_cfg = {
 	.temp_offset_v2 = true,
 };
 
-struct iwl_dvm_cfg iwl_dvm_105_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_105_cfg = {
 	.set_hw_params = iwl2000_hw_set_hw_params,
 	.nic_config = iwl2000_nic_config,
 	.temperature = iwlagn_temperature,
@@ -272,7 +272,7 @@ static const struct iwl_dvm_bt_params iwl2030_bt_params = {
 	.bt_session_2 = true,
 };
 
-struct iwl_dvm_cfg iwl_dvm_2030_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_2030_cfg = {
 	.set_hw_params = iwl2000_hw_set_hw_params,
 	.nic_config = iwl2000_nic_config,
 	.temperature = iwlagn_temperature,
@@ -463,7 +463,7 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv,
 	return iwl_dvm_send_cmd(priv, &hcmd);
 }
 
-struct iwl_dvm_cfg iwl_dvm_5000_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_5000_cfg = {
 	.set_hw_params = iwl5000_hw_set_hw_params,
 	.set_channel_switch = iwl5000_hw_channel_switch,
 	.temperature = iwlagn_temperature,
@@ -472,7 +472,7 @@ struct iwl_dvm_cfg iwl_dvm_5000_cfg = {
 	.no_idle_support = true,
 };
 
-struct iwl_dvm_cfg iwl_dvm_5150_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_5150_cfg = {
 	.set_hw_params = iwl5150_hw_set_hw_params,
 	.set_channel_switch = iwl5000_hw_channel_switch,
 	.temperature = iwl5150_temperature,
@@ -634,7 +634,7 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv,
 	return err;
 }
 
-struct iwl_dvm_cfg iwl_dvm_6000_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_6000_cfg = {
 	.set_hw_params = iwl6000_hw_set_hw_params,
 	.set_channel_switch = iwl6000_hw_channel_switch,
 	.nic_config = iwl6000_nic_config,
@@ -657,7 +657,7 @@ const struct iwl_dvm_cfg iwl_dvm_6005_cfg = {
 	.need_temp_offset_calib = true,
 };
 
-struct iwl_dvm_cfg iwl_dvm_6050_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_6050_cfg = {
 	.set_hw_params = iwl6000_hw_set_hw_params,
 	.set_channel_switch = iwl6000_hw_channel_switch,
 	.nic_config = iwl6000_nic_config,
@@ -677,7 +677,7 @@ static const struct iwl_dvm_bt_params iwl6000_bt_params = {
 	.bt_sco_disable = true,
 };
 
-struct iwl_dvm_cfg iwl_dvm_6030_cfg = {
+const struct iwl_dvm_cfg iwl_dvm_6030_cfg = {
 	.set_hw_params = iwl6000_hw_set_hw_params,
 	.set_channel_switch = iwl6000_hw_channel_switch,
 	.nic_config = iwl6000_nic_config,
-- 
cgit v0.10.2


From 071d4990fd9fe6fe27b47f1587ba11db3111c3fd Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Mon, 6 May 2013 13:03:59 +0300
Subject: iwlwifi: mvm: Add beacon abort enablement

Beacon abort is used by device to increase idle dwell time when system
is idle. This algorithm is on top of beacon filtering feature. Enable
beacon abort only if power management is enabled.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
index 05e5192..b6bdfd3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
@@ -193,4 +193,13 @@ struct iwl_beacon_filter_cmd {
 
 #define IWL_BA_ENABLE_BEACON_ABORT_DEFAULT 1
 
+#define IWL_BF_CMD_CONFIG_DEFAULTS					\
+	.bf_energy_delta = IWL_BF_ENERGY_DELTA_DEFAULT,			\
+	.bf_roaming_energy_delta = IWL_BF_ROAMING_ENERGY_DELTA_DEFAULT,	\
+	.bf_roaming_state = IWL_BF_ROAMING_STATE_DEFAULT,		\
+	.bf_temperature_delta = IWL_BF_TEMPERATURE_DELTA_DEFAULT,	\
+	.bf_debug_flag = IWL_BF_DEBUG_FLAG_DEFAULT,			\
+	.bf_escape_timer = cpu_to_le32(IWL_BF_ESCAPE_TIMER_DEFAULT),	\
+	.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_DEFAULT)
+
 #endif
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 712c39a..02ba830 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -173,6 +173,8 @@ struct iwl_mvm_vif {
 	bool uploaded;
 	bool ap_active;
 	bool monitor_active;
+	/* indicate whether beacon filtering is enabled */
+	bool bf_enabled;
 
 	u32 ap_beacon_time;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index f5bdfb7..c818d6d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -75,6 +75,53 @@
 
 #define POWER_KEEP_ALIVE_PERIOD_SEC    25
 
+static int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
+					  struct iwl_beacon_filter_cmd *cmd)
+{
+	int ret;
+
+	ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, CMD_SYNC,
+				   sizeof(struct iwl_beacon_filter_cmd), cmd);
+
+	if (!ret) {
+		IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
+				cmd->ba_enable_beacon_abort);
+		IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
+				cmd->ba_escape_timer);
+		IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
+				cmd->bf_debug_flag);
+		IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
+				cmd->bf_enable_beacon_filter);
+		IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
+				cmd->bf_energy_delta);
+		IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
+				cmd->bf_escape_timer);
+		IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
+				cmd->bf_roaming_energy_delta);
+		IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
+				cmd->bf_roaming_state);
+		IWL_DEBUG_POWER(mvm, "bf_temperature_delta is: %d\n",
+				cmd->bf_temperature_delta);
+	}
+	return ret;
+}
+
+static int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
+				       struct ieee80211_vif *vif, bool enable)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_beacon_filter_cmd cmd = {
+		IWL_BF_CMD_CONFIG_DEFAULTS,
+		.bf_enable_beacon_filter = 1,
+		.ba_enable_beacon_abort = enable,
+	};
+
+	if (!mvmvif->bf_enabled)
+		return 0;
+
+	return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
+}
+
 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
 			      struct iwl_powertable_cmd *cmd)
 {
@@ -162,6 +209,8 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 {
+	int ret;
+	bool ba_enable;
 	struct iwl_powertable_cmd cmd = {};
 
 	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
@@ -170,8 +219,15 @@ int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 	iwl_mvm_power_log(mvm, &cmd);
 
-	return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_SYNC,
-				    sizeof(cmd), &cmd);
+	ret = iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_SYNC,
+				   sizeof(cmd), &cmd);
+	if (ret)
+		return ret;
+
+	ba_enable = !!(cmd.flags &
+		       cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK));
+
+	return iwl_mvm_update_beacon_abort(mvm, vif, ba_enable);
 }
 
 int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
@@ -190,69 +246,42 @@ int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 				    sizeof(cmd), &cmd);
 }
 
-static int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
-					  struct iwl_beacon_filter_cmd *cmd)
-{
-	int ret;
-
-	ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, CMD_SYNC,
-				   sizeof(struct iwl_beacon_filter_cmd), cmd);
-
-	if (!ret) {
-		IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
-				cmd->ba_enable_beacon_abort);
-		IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
-				cmd->ba_escape_timer);
-		IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
-				cmd->bf_debug_flag);
-		IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
-				cmd->bf_enable_beacon_filter);
-		IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
-				cmd->bf_energy_delta);
-		IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
-				cmd->bf_escape_timer);
-		IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
-				cmd->bf_roaming_energy_delta);
-		IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
-				cmd->bf_roaming_state);
-		IWL_DEBUG_POWER(mvm, "bf_temperature_delta is: %d\n",
-				cmd->bf_temperature_delta);
-	}
-	return ret;
-}
-
 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_beacon_filter_cmd cmd = {
+		IWL_BF_CMD_CONFIG_DEFAULTS,
 		.bf_enable_beacon_filter = 1,
-		.bf_energy_delta = IWL_BF_ENERGY_DELTA_DEFAULT,
-		.bf_roaming_energy_delta = IWL_BF_ROAMING_ENERGY_DELTA_DEFAULT,
-		.bf_roaming_state = IWL_BF_ROAMING_STATE_DEFAULT,
-		.bf_temperature_delta = IWL_BF_TEMPERATURE_DELTA_DEFAULT,
-		.bf_debug_flag = IWL_BF_DEBUG_FLAG_DEFAULT,
-		.bf_escape_timer = cpu_to_le32(IWL_BF_ESCAPE_TIMER_DEFAULT),
-		.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_DEFAULT),
-		.ba_enable_beacon_abort = IWL_BA_ENABLE_BEACON_ABORT_DEFAULT,
 	};
+	int ret;
 
 	if (mvmvif != mvm->bf_allowed_vif ||
 	    vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 		return 0;
 
-	return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
+	ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
+
+	if (!ret)
+		mvmvif->bf_enabled = true;
+
+	return ret;
 }
 
 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
 				  struct ieee80211_vif *vif)
 {
-	struct iwl_beacon_filter_cmd cmd = {
-		.bf_enable_beacon_filter = 0,
-	};
+	struct iwl_beacon_filter_cmd cmd = {};
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	int ret;
 
 	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 		return 0;
 
-	return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
+	ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
+
+	if (!ret)
+		mvmvif->bf_enabled = false;
+
+	return ret;
 }
-- 
cgit v0.10.2


From f68d18f202d50f60746a8bcce1dc965b2f5035c0 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 20 May 2013 08:59:31 +0300
Subject: iwlwifi: mvm: use proper scan type for P2P

It was set to be FORCED because of a firmware bug which
has been fixed.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 2476e43..2157b0f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -298,12 +298,6 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
 	else
 		cmd->type = cpu_to_le32(SCAN_TYPE_FORCED);
 
-	/*
-	 * TODO: This is a WA due to a bug in the FW AUX framework that does not
-	 * properly handle time events that fail to be scheduled
-	 */
-	cmd->type = cpu_to_le32(SCAN_TYPE_FORCED);
-
 	cmd->repeats = cpu_to_le32(1);
 
 	/*
-- 
cgit v0.10.2


From 4e7dba99c9e606e304f104ce4071d8b5ba93957e Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Wed, 22 May 2013 14:59:10 +0200
Subject: netfilter: Implement RFC 1123 for FTP conntrack

 The FTP conntrack code currently only accepts the following format for
 the 227 response for PASV:
 227 Entering Passive Mode (148,100,81,40,31,161).

 It doesn't accept the following format from an obscure server:
 227 Data transfer will passively listen to 67,218,99,134,50,144

 From RFC 1123:
 The format of the 227 reply to a PASV command is not
 well standardized.  In particular, an FTP client cannot
 assume that the parentheses shown on page 40 of RFC-959
 will be present (and in fact, Figure 3 on page 43 omits
 them).  Therefore, a User-FTP program that interprets
 the PASV reply must scan the reply for the first digit
 of the host and port numbers.

 This patch adds support for the RFC 1123 clarification by:
 - Allowing a search filter to specify NUL as the terminator so that
   try_number will return successfully if the array of numbers has been
   filled when an unexpected character is encountered.
 - Using space as the separator for the 227 reply and then scanning for
   the first digit of the number sequence. The number sequence is parsed
   out using the existing try_rfc959 but with a NUL terminator.

References: https://bugzilla.novell.com/show_bug.cgi?id=466279
References: http://bugzilla.netfilter.org/show_bug.cgi?id=574
Reported-by: Mark Post <mpost@novell.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netfilter-devel@vger.kernel.org
Cc: netfilter@vger.kernel.org
Cc: coreteam@netfilter.org
Cc: netdev@vger.kernel.org
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nf_conntrack_ftp.c b/net/netfilter/nf_conntrack_ftp.c
index 6b21707..b8a0924 100644
--- a/net/netfilter/nf_conntrack_ftp.c
+++ b/net/netfilter/nf_conntrack_ftp.c
@@ -55,10 +55,14 @@ unsigned int (*nf_nat_ftp_hook)(struct sk_buff *skb,
 				struct nf_conntrack_expect *exp);
 EXPORT_SYMBOL_GPL(nf_nat_ftp_hook);
 
-static int try_rfc959(const char *, size_t, struct nf_conntrack_man *, char);
-static int try_eprt(const char *, size_t, struct nf_conntrack_man *, char);
+static int try_rfc959(const char *, size_t, struct nf_conntrack_man *,
+		      char, unsigned int *);
+static int try_rfc1123(const char *, size_t, struct nf_conntrack_man *,
+		       char, unsigned int *);
+static int try_eprt(const char *, size_t, struct nf_conntrack_man *,
+		    char, unsigned int *);
 static int try_epsv_response(const char *, size_t, struct nf_conntrack_man *,
-			     char);
+			     char, unsigned int *);
 
 static struct ftp_search {
 	const char *pattern;
@@ -66,7 +70,7 @@ static struct ftp_search {
 	char skip;
 	char term;
 	enum nf_ct_ftp_type ftptype;
-	int (*getnum)(const char *, size_t, struct nf_conntrack_man *, char);
+	int (*getnum)(const char *, size_t, struct nf_conntrack_man *, char, unsigned int *);
 } search[IP_CT_DIR_MAX][2] = {
 	[IP_CT_DIR_ORIGINAL] = {
 		{
@@ -90,10 +94,8 @@ static struct ftp_search {
 		{
 			.pattern	= "227 ",
 			.plen		= sizeof("227 ") - 1,
-			.skip		= '(',
-			.term		= ')',
 			.ftptype	= NF_CT_FTP_PASV,
-			.getnum		= try_rfc959,
+			.getnum		= try_rfc1123,
 		},
 		{
 			.pattern	= "229 ",
@@ -132,8 +134,9 @@ static int try_number(const char *data, size_t dlen, u_int32_t array[],
 			i++;
 		else {
 			/* Unexpected character; true if it's the
-			   terminator and we're finished. */
-			if (*data == term && i == array_size - 1)
+			   terminator (or we don't care about one)
+			   and we're finished. */
+			if ((*data == term || !term) && i == array_size - 1)
 				return len;
 
 			pr_debug("Char %u (got %u nums) `%u' unexpected\n",
@@ -148,7 +151,8 @@ static int try_number(const char *data, size_t dlen, u_int32_t array[],
 
 /* Returns 0, or length of numbers: 192,168,1,1,5,6 */
 static int try_rfc959(const char *data, size_t dlen,
-		      struct nf_conntrack_man *cmd, char term)
+		      struct nf_conntrack_man *cmd, char term,
+		      unsigned int *offset)
 {
 	int length;
 	u_int32_t array[6];
@@ -163,6 +167,33 @@ static int try_rfc959(const char *data, size_t dlen,
 	return length;
 }
 
+/*
+ * From RFC 1123:
+ * The format of the 227 reply to a PASV command is not
+ * well standardized.  In particular, an FTP client cannot
+ * assume that the parentheses shown on page 40 of RFC-959
+ * will be present (and in fact, Figure 3 on page 43 omits
+ * them).  Therefore, a User-FTP program that interprets
+ * the PASV reply must scan the reply for the first digit
+ * of the host and port numbers.
+ */
+static int try_rfc1123(const char *data, size_t dlen,
+		       struct nf_conntrack_man *cmd, char term,
+		       unsigned int *offset)
+{
+	int i;
+	for (i = 0; i < dlen; i++)
+		if (isdigit(data[i]))
+			break;
+
+	if (i == dlen)
+		return 0;
+
+	*offset += i;
+
+	return try_rfc959(data + i, dlen - i, cmd, 0, offset);
+}
+
 /* Grab port: number up to delimiter */
 static int get_port(const char *data, int start, size_t dlen, char delim,
 		    __be16 *port)
@@ -191,7 +222,7 @@ static int get_port(const char *data, int start, size_t dlen, char delim,
 
 /* Returns 0, or length of numbers: |1|132.235.1.2|6275| or |2|3ffe::1|6275| */
 static int try_eprt(const char *data, size_t dlen, struct nf_conntrack_man *cmd,
-		    char term)
+		    char term, unsigned int *offset)
 {
 	char delim;
 	int length;
@@ -239,7 +270,8 @@ static int try_eprt(const char *data, size_t dlen, struct nf_conntrack_man *cmd,
 
 /* Returns 0, or length of numbers: |||6446| */
 static int try_epsv_response(const char *data, size_t dlen,
-			     struct nf_conntrack_man *cmd, char term)
+			     struct nf_conntrack_man *cmd, char term,
+			     unsigned int *offset)
 {
 	char delim;
 
@@ -261,9 +293,10 @@ static int find_pattern(const char *data, size_t dlen,
 			unsigned int *numlen,
 			struct nf_conntrack_man *cmd,
 			int (*getnum)(const char *, size_t,
-				      struct nf_conntrack_man *, char))
+				      struct nf_conntrack_man *, char,
+				      unsigned int *))
 {
-	size_t i;
+	size_t i = plen;
 
 	pr_debug("find_pattern `%s': dlen = %Zu\n", pattern, dlen);
 	if (dlen == 0)
@@ -293,16 +326,18 @@ static int find_pattern(const char *data, size_t dlen,
 	pr_debug("Pattern matches!\n");
 	/* Now we've found the constant string, try to skip
 	   to the 'skip' character */
-	for (i = plen; data[i] != skip; i++)
-		if (i == dlen - 1) return -1;
+	if (skip) {
+		for (i = plen; data[i] != skip; i++)
+			if (i == dlen - 1) return -1;
 
-	/* Skip over the last character */
-	i++;
+		/* Skip over the last character */
+		i++;
+	}
 
 	pr_debug("Skipped up to `%c'!\n", skip);
 
 	*numoff = i;
-	*numlen = getnum(data + i, dlen - i, cmd, term);
+	*numlen = getnum(data + i, dlen - i, cmd, term, numoff);
 	if (!*numlen)
 		return -1;
 
-- 
cgit v0.10.2


From 6abb9cb99f33b20c2f32f18a3ae9cc7543e46edb Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 15 May 2013 09:30:07 +0200
Subject: cfg80211: make WoWLAN configuration available to drivers

Make the current WoWLAN configuration available to drivers
at runtime. This isn't really useful for the normal WoWLAN
behaviour and accessing it can also be racy, but drivers
may use it for testing the WoWLAN device behaviour while
the host stays up & running to observe the device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 9f45d74..b3b076a 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2583,6 +2583,9 @@ struct wiphy_wowlan_support {
  *	may request, if implemented.
  *
  * @wowlan: WoWLAN support information
+ * @wowlan_config: current WoWLAN configuration; this should usually not be
+ *	used since access to it is necessarily racy, use the parameter passed
+ *	to the suspend() operation instead.
  *
  * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
  * @ht_capa_mod_mask:  Specify what ht_cap values can be over-ridden.
@@ -2650,6 +2653,7 @@ struct wiphy {
 
 #ifdef CONFIG_PM
 	struct wiphy_wowlan_support wowlan;
+	struct cfg80211_wowlan *wowlan_config;
 #endif
 
 	u16 max_remain_on_channel_duration;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index ee42287..41cec17 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -663,8 +663,10 @@ void wiphy_unregister(struct wiphy *wiphy)
 	flush_work(&rdev->event_work);
 	cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
 
-	if (rdev->wowlan && rdev->ops->set_wakeup)
+#ifdef CONFIG_PM
+	if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
 		rdev_set_wakeup(rdev, false);
+#endif
 	cfg80211_rdev_free_wowlan(rdev);
 }
 EXPORT_SYMBOL(wiphy_unregister);
diff --git a/net/wireless/core.h b/net/wireless/core.h
index b4b4a56..a65eaf8 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -74,8 +74,6 @@ struct cfg80211_registered_device {
 	struct work_struct conn_work;
 	struct work_struct event_work;
 
-	struct cfg80211_wowlan *wowlan;
-
 	struct delayed_work dfs_update_channels_wk;
 
 	/* netlink port which started critical protocol (0 means not started) */
@@ -96,17 +94,20 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
 static inline void
 cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
 {
+#ifdef CONFIG_PM
 	int i;
 
-	if (!rdev->wowlan)
+	if (!rdev->wiphy.wowlan_config)
 		return;
-	for (i = 0; i < rdev->wowlan->n_patterns; i++)
-		kfree(rdev->wowlan->patterns[i].mask);
-	kfree(rdev->wowlan->patterns);
-	if (rdev->wowlan->tcp && rdev->wowlan->tcp->sock)
-		sock_release(rdev->wowlan->tcp->sock);
-	kfree(rdev->wowlan->tcp);
-	kfree(rdev->wowlan);
+	for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
+		kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
+	kfree(rdev->wiphy.wowlan_config->patterns);
+	if (rdev->wiphy.wowlan_config->tcp &&
+	    rdev->wiphy.wowlan_config->tcp->sock)
+		sock_release(rdev->wiphy.wowlan_config->tcp->sock);
+	kfree(rdev->wiphy.wowlan_config->tcp);
+	kfree(rdev->wiphy.wowlan_config);
+#endif
 }
 
 extern struct workqueue_struct *cfg80211_wq;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index a09f36b..fb6abcb 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7489,28 +7489,29 @@ static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
 					struct cfg80211_registered_device *rdev)
 {
+	struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
 	struct nlattr *nl_pats, *nl_pat;
 	int i, pat_len;
 
-	if (!rdev->wowlan->n_patterns)
+	if (!wowlan->n_patterns)
 		return 0;
 
 	nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
 	if (!nl_pats)
 		return -ENOBUFS;
 
-	for (i = 0; i < rdev->wowlan->n_patterns; i++) {
+	for (i = 0; i < wowlan->n_patterns; i++) {
 		nl_pat = nla_nest_start(msg, i + 1);
 		if (!nl_pat)
 			return -ENOBUFS;
-		pat_len = rdev->wowlan->patterns[i].pattern_len;
+		pat_len = wowlan->patterns[i].pattern_len;
 		if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
 			    DIV_ROUND_UP(pat_len, 8),
-			    rdev->wowlan->patterns[i].mask) ||
+			    wowlan->patterns[i].mask) ||
 		    nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
-			    pat_len, rdev->wowlan->patterns[i].pattern) ||
+			    pat_len, wowlan->patterns[i].pattern) ||
 		    nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
-				rdev->wowlan->patterns[i].pkt_offset))
+				wowlan->patterns[i].pkt_offset))
 			return -ENOBUFS;
 		nla_nest_end(msg, nl_pat);
 	}
@@ -7573,12 +7574,12 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
 	    !rdev->wiphy.wowlan.tcp)
 		return -EOPNOTSUPP;
 
-	if (rdev->wowlan && rdev->wowlan->tcp) {
+	if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
 		/* adjust size to have room for all the data */
-		size += rdev->wowlan->tcp->tokens_size +
-			rdev->wowlan->tcp->payload_len +
-			rdev->wowlan->tcp->wake_len +
-			rdev->wowlan->tcp->wake_len / 8;
+		size += rdev->wiphy.wowlan_config->tcp->tokens_size +
+			rdev->wiphy.wowlan_config->tcp->payload_len +
+			rdev->wiphy.wowlan_config->tcp->wake_len +
+			rdev->wiphy.wowlan_config->tcp->wake_len / 8;
 	}
 
 	msg = nlmsg_new(size, GFP_KERNEL);
@@ -7590,33 +7591,34 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
 	if (!hdr)
 		goto nla_put_failure;
 
-	if (rdev->wowlan) {
+	if (rdev->wiphy.wowlan_config) {
 		struct nlattr *nl_wowlan;
 
 		nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
 		if (!nl_wowlan)
 			goto nla_put_failure;
 
-		if ((rdev->wowlan->any &&
+		if ((rdev->wiphy.wowlan_config->any &&
 		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
-		    (rdev->wowlan->disconnect &&
+		    (rdev->wiphy.wowlan_config->disconnect &&
 		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
-		    (rdev->wowlan->magic_pkt &&
+		    (rdev->wiphy.wowlan_config->magic_pkt &&
 		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
-		    (rdev->wowlan->gtk_rekey_failure &&
+		    (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
 		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
-		    (rdev->wowlan->eap_identity_req &&
+		    (rdev->wiphy.wowlan_config->eap_identity_req &&
 		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
-		    (rdev->wowlan->four_way_handshake &&
+		    (rdev->wiphy.wowlan_config->four_way_handshake &&
 		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
-		    (rdev->wowlan->rfkill_release &&
+		    (rdev->wiphy.wowlan_config->rfkill_release &&
 		     nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
 			goto nla_put_failure;
 
 		if (nl80211_send_wowlan_patterns(msg, rdev))
 			goto nla_put_failure;
 
-		if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
+		if (nl80211_send_wowlan_tcp(msg,
+					    rdev->wiphy.wowlan_config->tcp))
 			goto nla_put_failure;
 
 		nla_nest_end(msg, nl_wowlan);
@@ -7783,7 +7785,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
 	struct cfg80211_wowlan *ntrig;
 	struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
 	int err, i;
-	bool prev_enabled = rdev->wowlan;
+	bool prev_enabled = rdev->wiphy.wowlan_config;
 
 	if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
 	    !rdev->wiphy.wowlan.tcp)
@@ -7791,7 +7793,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
 
 	if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
 		cfg80211_rdev_free_wowlan(rdev);
-		rdev->wowlan = NULL;
+		rdev->wiphy.wowlan_config = NULL;
 		goto set_wakeup;
 	}
 
@@ -7927,11 +7929,12 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
 		goto error;
 	}
 	cfg80211_rdev_free_wowlan(rdev);
-	rdev->wowlan = ntrig;
+	rdev->wiphy.wowlan_config = ntrig;
 
  set_wakeup:
-	if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
-		rdev_set_wakeup(rdev, rdev->wowlan);
+	if (rdev->ops->set_wakeup &&
+	    prev_enabled != !!rdev->wiphy.wowlan_config)
+		rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
 
 	return 0;
  error:
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 8f28b9f..360a42c 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -91,6 +91,7 @@ static void cfg80211_leave_all(struct cfg80211_registered_device *rdev)
 		cfg80211_leave(rdev, wdev);
 }
 
+#ifdef CONFIG_PM
 static int wiphy_suspend(struct device *dev, pm_message_t state)
 {
 	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
@@ -100,10 +101,10 @@ static int wiphy_suspend(struct device *dev, pm_message_t state)
 
 	rtnl_lock();
 	if (rdev->wiphy.registered) {
-		if (!rdev->wowlan)
+		if (!rdev->wiphy.wowlan_config)
 			cfg80211_leave_all(rdev);
 		if (rdev->ops->suspend)
-			ret = rdev_suspend(rdev, rdev->wowlan);
+			ret = rdev_suspend(rdev, rdev->wiphy.wowlan_config);
 		if (ret == 1) {
 			/* Driver refuse to configure wowlan */
 			cfg80211_leave_all(rdev);
@@ -132,6 +133,7 @@ static int wiphy_resume(struct device *dev)
 
 	return ret;
 }
+#endif
 
 static const void *wiphy_namespace(struct device *d)
 {
@@ -146,8 +148,10 @@ struct class ieee80211_class = {
 	.dev_release = wiphy_dev_release,
 	.dev_attrs = ieee80211_dev_attrs,
 	.dev_uevent = wiphy_uevent,
+#ifdef CONFIG_PM
 	.suspend = wiphy_suspend,
 	.resume = wiphy_resume,
+#endif
 	.ns_type = &net_ns_type_operations,
 	.namespace = wiphy_namespace,
 };
-- 
cgit v0.10.2


From e09b74d0195496fdc2dbe106eaa55da48873876e Mon Sep 17 00:00:00 2001
From: Ariel Elior <ariele@broadcom.com>
Date: Mon, 27 May 2013 04:08:26 +0000
Subject: bnx2x: Zero VFs starting MACs

Hypervisor/Supervisor should set the VF's MAC prior to its load;
Using a randomly generated MAC as a default is a bad practice.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 7ed9cdf..80982c3 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -11406,7 +11406,7 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 		if (rc)
 			return rc;
 	} else {
-		random_ether_addr(bp->dev->dev_addr);
+		eth_zero_addr(bp->dev->dev_addr);
 	}
 
 	bnx2x_set_modes_bitmap(bp);
@@ -11865,6 +11865,10 @@ static int bnx2x_validate_addr(struct net_device *dev)
 {
 	struct bnx2x *bp = netdev_priv(dev);
 
+	/* query the bulletin board for mac address configured by the PF */
+	if (IS_VF(bp))
+		bnx2x_sample_bulletin(bp);
+
 	if (!bnx2x_is_valid_ether_addr(bp, dev->dev_addr)) {
 		BNX2X_ERR("Non-valid Ethernet address\n");
 		return -EADDRNOTAVAIL;
-- 
cgit v0.10.2


From ca1ee4b259ea8c4f91c84ee4c737338658711272 Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Mon, 27 May 2013 04:08:27 +0000
Subject: bnx2x: Add and correct PCI link speed prints

This adds the print of the PCI gen3 link speed (8GHz), as well as correcting
the same print for 57712 boards (the print erroneously showed a 2.5GHz speed).

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 946450d..47b06fc 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -2342,4 +2342,9 @@ enum {
 
 #define NUM_MACS	8
 
+enum bnx2x_pci_bus_speed {
+	BNX2X_PCI_LINK_SPEED_2500 = 2500,
+	BNX2X_PCI_LINK_SPEED_5000 = 5000,
+	BNX2X_PCI_LINK_SPEED_8000 = 8000
+};
 #endif /* bnx2x.h */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 80982c3..04fa510 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12111,15 +12111,26 @@ err_out:
 	return rc;
 }
 
-static void bnx2x_get_pcie_width_speed(struct bnx2x *bp, int *width, int *speed)
+static void bnx2x_get_pcie_width_speed(struct bnx2x *bp, int *width,
+				       enum bnx2x_pci_bus_speed *speed)
 {
-	u32 val = 0;
+	u32 link_speed, val = 0;
 
 	pci_read_config_dword(bp->pdev, PCICFG_LINK_CONTROL, &val);
 	*width = (val & PCICFG_LINK_WIDTH) >> PCICFG_LINK_WIDTH_SHIFT;
 
-	/* return value of 1=2.5GHz 2=5GHz */
-	*speed = (val & PCICFG_LINK_SPEED) >> PCICFG_LINK_SPEED_SHIFT;
+	link_speed = (val & PCICFG_LINK_SPEED) >> PCICFG_LINK_SPEED_SHIFT;
+
+	switch (link_speed) {
+	case 3:
+		*speed = BNX2X_PCI_LINK_SPEED_8000;
+		break;
+	case 2:
+		*speed = BNX2X_PCI_LINK_SPEED_5000;
+		break;
+	default:
+		*speed = BNX2X_PCI_LINK_SPEED_2500;
+	}
 }
 
 static int bnx2x_check_firmware(struct bnx2x *bp)
@@ -12482,7 +12493,8 @@ static int bnx2x_init_one(struct pci_dev *pdev,
 {
 	struct net_device *dev = NULL;
 	struct bnx2x *bp;
-	int pcie_width, pcie_speed;
+	int pcie_width;
+	enum bnx2x_pci_bus_speed pcie_speed;
 	int rc, max_non_def_sbs;
 	int rx_count, tx_count, rss_count, doorbell_size;
 	int max_cos_est;
@@ -12634,15 +12646,15 @@ static int bnx2x_init_one(struct pci_dev *pdev,
 	BNX2X_DEV_INFO("got pcie width %d and speed %d\n",
 		       pcie_width, pcie_speed);
 
-	BNX2X_DEV_INFO(
-		"%s (%c%d) PCI-E x%d %s found at mem %lx, IRQ %d, node addr %pM\n",
-		    board_info[ent->driver_data].name,
-		    (CHIP_REV(bp) >> 12) + 'A', (CHIP_METAL(bp) >> 4),
-		    pcie_width,
-		    ((!CHIP_IS_E2(bp) && pcie_speed == 2) ||
-		     (CHIP_IS_E2(bp) && pcie_speed == 1)) ?
-		    "5GHz (Gen2)" : "2.5GHz",
-		    dev->base_addr, bp->pdev->irq, dev->dev_addr);
+	BNX2X_DEV_INFO("%s (%c%d) PCI-E x%d %s found at mem %lx, IRQ %d, node addr %pM\n",
+		       board_info[ent->driver_data].name,
+		       (CHIP_REV(bp) >> 12) + 'A', (CHIP_METAL(bp) >> 4),
+		       pcie_width,
+		       pcie_speed == BNX2X_PCI_LINK_SPEED_2500 ? "2.5GHz" :
+		       pcie_speed == BNX2X_PCI_LINK_SPEED_5000 ? "5.0GHz" :
+		       pcie_speed == BNX2X_PCI_LINK_SPEED_8000 ? "8.0GHz" :
+		       "Unknown",
+		       dev->base_addr, bp->pdev->irq, dev->dev_addr);
 
 	return 0;
 
-- 
cgit v0.10.2


From 70ca5d746cf0c16576cee43fea6a19116ab49d9c Mon Sep 17 00:00:00 2001
From: Ariel Elior <ariele@broadcom.com>
Date: Mon, 27 May 2013 04:08:28 +0000
Subject: bnx2x: Ack unknown VF messages

A PF should ack the firmware when receiving unknown messages through the VF's
mailbox. This prevents the VF mailbox from being stuck in case of a VF sending
a message unknown to the PF (e.g. VF with more advanced version).

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index 928b074..2826066 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -1605,8 +1605,11 @@ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
 			bnx2x_vf_mbx_resp(bp, vf);
 		} else {
 			/* can't send a response since this VF is unknown to us
-			 * just unlock the channel and be done with.
+			 * just ack the FW to release the mailbox and unlock
+			 * the channel.
 			 */
+			storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
+			mmiowb();
 			bnx2x_unlock_vf_pf_channel(bp, vf,
 						   mbx->first_tlv.tl.type);
 		}
-- 
cgit v0.10.2


From 868001946e39627ec439921eeb0f5fa020e1e31d Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Mon, 27 May 2013 04:08:29 +0000
Subject: bnx2x: Count number of possible FCoE interfaces

Commit 0eb43b4bb081a1a22574daab9c05286a600dd7fe
"bnx2x, bnx2fc: Use per port max exchange resources" has changed the number
of available FCoE exchanges, even in scenarios when some of the functions has
no FCoE support; This needlessly degraded the available resources.

Remedy this by calculating the maximal number of functions that may actually
utilize said connection.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
CC: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 04fa510..0a3bb53 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -10795,12 +10795,56 @@ static void bnx2x_get_ext_wwn_info(struct bnx2x *bp, int func)
 	bp->cnic_eth_dev.fcoe_wwn_node_name_lo =
 		MF_CFG_RD(bp, func_ext_config[func].fcoe_wwn_node_name_lower);
 }
+
+static int bnx2x_shared_fcoe_funcs(struct bnx2x *bp)
+{
+	u8 count = 0;
+
+	if (IS_MF(bp)) {
+		u8 fid;
+
+		/* iterate over absolute function ids for this path: */
+		for (fid = BP_PATH(bp); fid < E2_FUNC_MAX * 2; fid += 2) {
+			if (IS_MF_SD(bp)) {
+				u32 cfg = MF_CFG_RD(bp,
+						    func_mf_config[fid].config);
+
+				if (!(cfg & FUNC_MF_CFG_FUNC_HIDE) &&
+				    ((cfg & FUNC_MF_CFG_PROTOCOL_MASK) ==
+					    FUNC_MF_CFG_PROTOCOL_FCOE))
+					count++;
+			} else {
+				u32 cfg = MF_CFG_RD(bp,
+						    func_ext_config[fid].
+								      func_cfg);
+
+				if ((cfg & MACP_FUNC_CFG_FLAGS_ENABLED) &&
+				    (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD))
+					count++;
+			}
+		}
+	} else { /* SF */
+		int port, port_cnt = CHIP_MODE_IS_4_PORT(bp) ? 2 : 1;
+
+		for (port = 0; port < port_cnt; port++) {
+			u32 lic = SHMEM_RD(bp,
+					   drv_lic_key[port].max_fcoe_conn) ^
+				  FW_ENCODE_32BIT_PATTERN;
+			if (lic)
+				count++;
+		}
+	}
+
+	return count;
+}
+
 static void bnx2x_get_fcoe_info(struct bnx2x *bp)
 {
 	int port = BP_PORT(bp);
 	int func = BP_ABS_FUNC(bp);
 	u32 max_fcoe_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
 				drv_lic_key[port].max_fcoe_conn);
+	u8 num_fcoe_func = bnx2x_shared_fcoe_funcs(bp);
 
 	if (!CNIC_SUPPORT(bp)) {
 		bp->flags |= NO_FCOE_FLAG;
@@ -10814,9 +10858,10 @@ static void bnx2x_get_fcoe_info(struct bnx2x *bp)
 
 	/* Calculate the number of maximum allowed FCoE tasks */
 	bp->cnic_eth_dev.max_fcoe_exchanges = MAX_NUM_FCOE_TASKS_PER_ENGINE;
-	if (IS_MF(bp) || CHIP_MODE_IS_4_PORT(bp))
-		bp->cnic_eth_dev.max_fcoe_exchanges /=
-						MAX_FCOE_FUNCS_PER_ENGINE;
+
+	/* check if FCoE resources must be shared between different functions */
+	if (num_fcoe_func)
+		bp->cnic_eth_dev.max_fcoe_exchanges /= num_fcoe_func;
 
 	/* Read the WWN: */
 	if (!IS_MF(bp)) {
-- 
cgit v0.10.2


From b030ed2fdc8a396dba71e4d550236a0f1bb38b40 Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Mon, 27 May 2013 04:08:30 +0000
Subject: bnx2x: Implement PCI shutdown

Implement the PCI shutdown callback to support un-orderly shutdown, i.e.,
shutdowns in which the remove callback will not be called.

Due to the lack of this functionality, when an un-orderly shutdown occurred,
it was possible for wake-on-lan to remain disabled.

This is now fixed as the callback introduces the correct place in which
`system_state' can be queried and wake-on-lan be configured accordingly.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 0a3bb53..13f8144 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12721,17 +12721,11 @@ init_one_exit:
 	return rc;
 }
 
-static void bnx2x_remove_one(struct pci_dev *pdev)
+static void __bnx2x_remove(struct pci_dev *pdev,
+			   struct net_device *dev,
+			   struct bnx2x *bp,
+			   bool remove_netdev)
 {
-	struct net_device *dev = pci_get_drvdata(pdev);
-	struct bnx2x *bp;
-
-	if (!dev) {
-		dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n");
-		return;
-	}
-	bp = netdev_priv(dev);
-
 	/* Delete storage MAC address */
 	if (!NO_FCOE(bp)) {
 		rtnl_lock();
@@ -12744,7 +12738,15 @@ static void bnx2x_remove_one(struct pci_dev *pdev)
 	bnx2x_dcbnl_update_applist(bp, true);
 #endif
 
-	unregister_netdev(dev);
+	/* Close the interface - either directly or implicitly */
+	if (remove_netdev) {
+		unregister_netdev(dev);
+	} else {
+		rtnl_lock();
+		if (netif_running(dev))
+			bnx2x_close(dev);
+		rtnl_unlock();
+	}
 
 	/* Power on: we can't let PCI layer write to us while we are in D3 */
 	if (IS_PF(bp))
@@ -12766,6 +12768,12 @@ static void bnx2x_remove_one(struct pci_dev *pdev)
 	if (IS_VF(bp))
 		bnx2x_vfpf_release(bp);
 
+	/* Assumes no further PCIe PM changes will occur */
+	if (system_state == SYSTEM_POWER_OFF) {
+		pci_wake_from_d3(pdev, bp->wol);
+		pci_set_power_state(pdev, PCI_D3hot);
+	}
+
 	if (bp->regview)
 		iounmap(bp->regview);
 
@@ -12780,7 +12788,8 @@ static void bnx2x_remove_one(struct pci_dev *pdev)
 	}
 	bnx2x_free_mem_bp(bp);
 
-	free_netdev(dev);
+	if (remove_netdev)
+		free_netdev(dev);
 
 	if (atomic_read(&pdev->enable_cnt) == 1)
 		pci_release_regions(pdev);
@@ -12789,6 +12798,20 @@ static void bnx2x_remove_one(struct pci_dev *pdev)
 	pci_set_drvdata(pdev, NULL);
 }
 
+static void bnx2x_remove_one(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct bnx2x *bp;
+
+	if (!dev) {
+		dev_err(&pdev->dev, "BAD net device from bnx2x_init_one\n");
+		return;
+	}
+	bp = netdev_priv(dev);
+
+	__bnx2x_remove(pdev, dev, bp, true);
+}
+
 static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
 {
 	bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT;
@@ -12968,6 +12991,29 @@ static const struct pci_error_handlers bnx2x_err_handler = {
 	.resume         = bnx2x_io_resume,
 };
 
+static void bnx2x_shutdown(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct bnx2x *bp;
+
+	if (!dev)
+		return;
+
+	bp = netdev_priv(dev);
+	if (!bp)
+		return;
+
+	rtnl_lock();
+	netif_device_detach(dev);
+	rtnl_unlock();
+
+	/* Don't remove the netdevice, as there are scenarios which will cause
+	 * the kernel to hang, e.g., when trying to remove bnx2i while the
+	 * rootfs is mounted from SAN.
+	 */
+	__bnx2x_remove(pdev, dev, bp, false);
+}
+
 static struct pci_driver bnx2x_pci_driver = {
 	.name        = DRV_MODULE_NAME,
 	.id_table    = bnx2x_pci_tbl,
@@ -12979,6 +13025,7 @@ static struct pci_driver bnx2x_pci_driver = {
 #ifdef CONFIG_BNX2X_SRIOV
 	.sriov_configure = bnx2x_sriov_configure,
 #endif
+	.shutdown    = bnx2x_shutdown,
 };
 
 static int __init bnx2x_init(void)
-- 
cgit v0.10.2


From 3fb43eb20aec3f5ceed5813a035f200dafb51257 Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Mon, 27 May 2013 04:08:31 +0000
Subject: bnx2x: Change to D3hot only on removal

This changes the PCI power management scheme of the bnx2x driver to be similar
to those of most network drivers - the driver will now changes the power state
into D3hot whenever the driver will be removed, instead of whenever an
interface is unloaded.

This change enables the driver to access its eeprom via ethtool callbacks
even when interfaces are unloaded (such access requires the function to be
in D0active).

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 32aa88f..263950c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -1381,12 +1381,28 @@ static int bnx2x_nvram_read32(struct bnx2x *bp, u32 offset, u32 *buf,
 	return rc;
 }
 
+static bool bnx2x_is_nvm_accessible(struct bnx2x *bp)
+{
+	int rc = 1;
+	u16 pm = 0;
+	struct net_device *dev = pci_get_drvdata(bp->pdev);
+
+	if (bp->pm_cap)
+		rc = pci_read_config_word(bp->pdev,
+					  bp->pm_cap + PCI_PM_CTRL, &pm);
+
+	if ((rc && !netif_running(dev)) || (!rc && ((pm & PCI_D0) != PCI_D0)))
+		return false;
+
+	return true;
+}
+
 static int bnx2x_get_eeprom(struct net_device *dev,
 			    struct ethtool_eeprom *eeprom, u8 *eebuf)
 {
 	struct bnx2x *bp = netdev_priv(dev);
 
-	if (!netif_running(dev)) {
+	if (!bnx2x_is_nvm_accessible(bp)) {
 		DP(BNX2X_MSG_ETHTOOL  | BNX2X_MSG_NVM,
 		   "cannot access eeprom when the interface is down\n");
 		return -EAGAIN;
@@ -1411,7 +1427,7 @@ static int bnx2x_get_module_eeprom(struct net_device *dev,
 	u8 *user_data = data;
 	unsigned int start_addr = ee->offset, xfer_size = 0;
 
-	if (!netif_running(dev)) {
+	if (!bnx2x_is_nvm_accessible(bp)) {
 		DP(BNX2X_MSG_ETHTOOL | BNX2X_MSG_NVM,
 		   "cannot access eeprom when the interface is down\n");
 		return -EAGAIN;
@@ -1474,7 +1490,7 @@ static int bnx2x_get_module_info(struct net_device *dev,
 	int phy_idx, rc;
 	u8 sff8472_comp, diag_type;
 
-	if (!netif_running(dev)) {
+	if (!bnx2x_is_nvm_accessible(bp)) {
 		DP(BNX2X_MSG_ETHTOOL | BNX2X_MSG_NVM,
 		   "cannot access eeprom when the interface is down\n");
 		return -EAGAIN;
@@ -1676,7 +1692,8 @@ static int bnx2x_set_eeprom(struct net_device *dev,
 	int port = BP_PORT(bp);
 	int rc = 0;
 	u32 ext_phy_config;
-	if (!netif_running(dev)) {
+
+	if (!bnx2x_is_nvm_accessible(bp)) {
 		DP(BNX2X_MSG_ETHTOOL | BNX2X_MSG_NVM,
 		   "cannot access eeprom when the interface is down\n");
 		return -EAGAIN;
@@ -2173,7 +2190,7 @@ static int bnx2x_test_registers(struct bnx2x *bp)
 		{ BNX2X_CHIP_MASK_ALL, 0xffffffff, 0, 0x00000000 }
 	};
 
-	if (!netif_running(bp->dev)) {
+	if (!bnx2x_is_nvm_accessible(bp)) {
 		DP(BNX2X_MSG_ETHTOOL | BNX2X_MSG_NVM,
 		   "cannot access eeprom when the interface is down\n");
 		return rc;
@@ -2277,7 +2294,7 @@ static int bnx2x_test_memory(struct bnx2x *bp)
 		{ NULL, 0xffffffff, {0, 0, 0, 0} }
 	};
 
-	if (!netif_running(bp->dev)) {
+	if (!bnx2x_is_nvm_accessible(bp)) {
 		DP(BNX2X_MSG_ETHTOOL | BNX2X_MSG_NVM,
 		   "cannot access eeprom when the interface is down\n");
 		return rc;
@@ -3140,7 +3157,7 @@ static int bnx2x_set_phys_id(struct net_device *dev,
 {
 	struct bnx2x *bp = netdev_priv(dev);
 
-	if (!netif_running(dev)) {
+	if (!bnx2x_is_nvm_accessible(bp)) {
 		DP(BNX2X_MSG_ETHTOOL | BNX2X_MSG_NVM,
 		   "cannot access eeprom when the interface is down\n");
 		return -EAGAIN;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 13f8144..f6d0e20 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -11643,9 +11643,6 @@ static int bnx2x_close(struct net_device *dev)
 	/* Unload the driver, release IRQs */
 	bnx2x_nic_unload(bp, UNLOAD_CLOSE, false);
 
-	/* Power off */
-	bnx2x_set_power_state(bp, PCI_D3hot);
-
 	return 0;
 }
 
-- 
cgit v0.10.2


From eeb65cedd78ebd375608d71d703e6b0b9296efbd Mon Sep 17 00:00:00 2001
From: Somnath Kotur <somnath.kotur@emulex.com>
Date: Sun, 26 May 2013 21:08:36 +0000
Subject: be2net: cleanup be_get_drvinfo()

Removing the be_cmd_get_fw_ver() query from be_get_drvinfo() and invoking
the same from be_setup() and/or post firmware download.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index f544b29..edce38b 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -397,6 +397,7 @@ struct be_adapter {
 	u32 cmd_privileges;
 	/* Ethtool knobs and info */
 	char fw_ver[FW_VER_LEN];
+	char fw_on_flash[FW_VER_LEN];
 	int if_handle;		/* Used to configure filtering */
 	u32 *pmac_id;		/* MAC addr handle used by BE card */
 	u32 beacon_state;	/* for set_phys_id */
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index 3d4461a..f3ee077 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -177,19 +177,15 @@ static void be_get_drvinfo(struct net_device *netdev,
 				struct ethtool_drvinfo *drvinfo)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
-	char fw_on_flash[FW_VER_LEN];
-
-	memset(fw_on_flash, 0 , sizeof(fw_on_flash));
-	be_cmd_get_fw_ver(adapter, adapter->fw_ver, fw_on_flash);
 
 	strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
 	strlcpy(drvinfo->version, DRV_VER, sizeof(drvinfo->version));
-	if (!memcmp(adapter->fw_ver, fw_on_flash, FW_VER_LEN))
+	if (!memcmp(adapter->fw_ver, adapter->fw_on_flash, FW_VER_LEN))
 		strlcpy(drvinfo->fw_version, adapter->fw_ver,
 			sizeof(drvinfo->fw_version));
 	else
 		snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
-			 "%s [%s]", adapter->fw_ver, fw_on_flash);
+			 "%s [%s]", adapter->fw_ver, adapter->fw_on_flash);
 
 	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 		sizeof(drvinfo->bus_info));
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 3d5e1a8..d158082 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3193,7 +3193,7 @@ static int be_setup(struct be_adapter *adapter)
 	if (status)
 		goto err;
 
-	be_cmd_get_fw_ver(adapter, adapter->fw_ver, NULL);
+	be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
 
 	if (adapter->vlans_added)
 		be_vid_config(adapter);
@@ -3785,6 +3785,10 @@ int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
 	else
 		status = be_fw_download(adapter, fw);
 
+	if (!status)
+		be_cmd_get_fw_ver(adapter, adapter->fw_ver,
+				  adapter->fw_on_flash);
+
 fw_exit:
 	release_firmware(fw);
 	return status;
-- 
cgit v0.10.2


From 48265667a756ab1c2750048caee3da719a86ebb2 Mon Sep 17 00:00:00 2001
From: Somnath Kotur <somnath.kotur@emulex.com>
Date: Sun, 26 May 2013 21:08:47 +0000
Subject: be2net: Pad skb to meet min Tx pkt size in lancer

In Lancer, packets that are 32 bytes or less may cause a transmit stall.
The work-around is to pad such packets to a 36 byte length.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index d158082..26e222f 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -848,6 +848,16 @@ static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
 	unsigned int eth_hdr_len;
 	struct iphdr *ip;
 
+	/* Lancer ASIC has a bug wherein packets that are 32 bytes or less
+	 * may cause a transmit stall on that port. So the work-around is to
+	 * pad such packets to a 36-byte length.
+	 */
+	if (unlikely(lancer_chip(adapter) && skb->len <= 32)) {
+		if (skb_padto(skb, 36))
+			goto tx_drop;
+		skb->len = 36;
+	}
+
 	/* For padded packets, BE HW modifies tot_len field in IP header
 	 * incorrecly when VLAN tag is inserted by HW.
 	 */
-- 
cgit v0.10.2


From 3904dcc4a7af8e28e45a8d123cef3f7653847a51 Mon Sep 17 00:00:00 2001
From: Somnath Kotur <somnath.kotur@emulex.com>
Date: Sun, 26 May 2013 21:09:06 +0000
Subject: be2net: Trim padded packets for Lancer

For padded packets, Lancer computes incorrect checksum. The workaround is
to trim such packets. This workaround is mainly for IPv4 packets.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 26e222f..1140a86 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -860,10 +860,12 @@ static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
 
 	/* For padded packets, BE HW modifies tot_len field in IP header
 	 * incorrecly when VLAN tag is inserted by HW.
+	 * For padded packets, Lancer computes incorrect checksum.
 	 */
 	eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
 						VLAN_ETH_HLEN : ETH_HLEN;
-	if (skb->len <= 60 && vlan_tx_tag_present(skb) &&
+	if (skb->len <= 60 &&
+	    (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
 	    is_ipv4_pkt(skb)) {
 		ip = (struct iphdr *)ip_hdr(skb);
 		pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
-- 
cgit v0.10.2


From f4e9f3d2fdb141d920c9fd7bd5ea7db348f6d3be Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 27 May 2013 03:48:29 +0000
Subject: fec: Place the phy regulator in the private structure

Instead of using a local reg_phy structure, let's put it inside the private
structure, so that we are able to have access to the regulator structure even
when we are outside fec_probe().

This is in preparation for controlling the FEC PHY regulator in the suspend and
resume functions.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index 9ce5b71..b11cdbc 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -272,6 +272,7 @@ struct fec_enet_private {
 	int hwts_tx_en;
 	struct timer_list time_keep;
 	struct fec_enet_delayed_work delay_work;
+	struct regulator *reg_phy;
 };
 
 void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev);
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 0936b26..57ac7c3 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1840,7 +1840,6 @@ fec_probe(struct platform_device *pdev)
 	struct resource *r;
 	const struct of_device_id *of_id;
 	static int dev_id;
-	struct regulator *reg_phy;
 
 	of_id = of_match_device(fec_dt_ids, &pdev->dev);
 	if (of_id)
@@ -1919,9 +1918,9 @@ fec_probe(struct platform_device *pdev)
 	clk_prepare_enable(fep->clk_enet_out);
 	clk_prepare_enable(fep->clk_ptp);
 
-	reg_phy = devm_regulator_get(&pdev->dev, "phy");
-	if (!IS_ERR(reg_phy)) {
-		ret = regulator_enable(reg_phy);
+	fep->reg_phy = devm_regulator_get(&pdev->dev, "phy");
+	if (!IS_ERR(fep->reg_phy)) {
+		ret = regulator_enable(fep->reg_phy);
 		if (ret) {
 			dev_err(&pdev->dev,
 				"Failed to enable phy regulator: %d\n", ret);
-- 
cgit v0.10.2


From 7a2bbd8d8e36c4fae7610bb1be96c2ba5ff7553a Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 27 May 2013 03:48:30 +0000
Subject: fec: Invert the order of error path sequence

Currently when fec_enet_init fails it jumps to 'failed_init' error path, which
will attemp to free the interrupts.

This is wrong because at this point the interrupts have not even been acquired.

Swap failed_init/failed_irq to fix the error path.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 57ac7c3..dc7388e 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1975,13 +1975,13 @@ fec_probe(struct platform_device *pdev)
 failed_register:
 	fec_enet_mii_remove(fep);
 failed_mii_init:
-failed_init:
+failed_irq:
 	for (i = 0; i < FEC_IRQ_NUM; i++) {
 		irq = platform_get_irq(pdev, i);
 		if (irq > 0)
 			free_irq(irq, ndev);
 	}
-failed_irq:
+failed_init:
 failed_regulator:
 	clk_disable_unprepare(fep->clk_ahb);
 	clk_disable_unprepare(fep->clk_ipg);
-- 
cgit v0.10.2


From f6a4d607b3fdfaf305f3e78837cb8969d62c249a Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 27 May 2013 03:48:31 +0000
Subject: fec: Disable the PHY regulator on error and removal

In the case of error during probe, disable the PHY regulator.

Do the same in fec_drv_remove().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index dc7388e..58ac0c7 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1926,6 +1926,8 @@ fec_probe(struct platform_device *pdev)
 				"Failed to enable phy regulator: %d\n", ret);
 			goto failed_regulator;
 		}
+	} else {
+		fep->reg_phy = NULL;
 	}
 
 	fec_reset_phy(pdev);
@@ -1982,6 +1984,8 @@ failed_irq:
 			free_irq(irq, ndev);
 	}
 failed_init:
+	if (fep->reg_phy)
+		regulator_disable(fep->reg_phy);
 failed_regulator:
 	clk_disable_unprepare(fep->clk_ahb);
 	clk_disable_unprepare(fep->clk_ipg);
@@ -2005,6 +2009,8 @@ fec_drv_remove(struct platform_device *pdev)
 	unregister_netdev(ndev);
 	fec_enet_mii_remove(fep);
 	del_timer_sync(&fep->time_keep);
+	if (fep->reg_phy)
+		regulator_disable(fep->reg_phy);
 	clk_disable_unprepare(fep->clk_ptp);
 	if (fep->ptp_clock)
 		ptp_clock_unregister(fep->ptp_clock);
-- 
cgit v0.10.2


From c55284e4ddf3779f52d730bedfa264d35d42e539 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 27 May 2013 03:48:32 +0000
Subject: fec: Remove irqs first

During probe the clocks are enabled prior than the acquiring the interrupts.

In the remove function we need to do the opposite: first remove the interrupts
and then disable the clocks.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 58ac0c7..cac667d 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2009,6 +2009,11 @@ fec_drv_remove(struct platform_device *pdev)
 	unregister_netdev(ndev);
 	fec_enet_mii_remove(fep);
 	del_timer_sync(&fep->time_keep);
+	for (i = 0; i < FEC_IRQ_NUM; i++) {
+		int irq = platform_get_irq(pdev, i);
+		if (irq > 0)
+			free_irq(irq, ndev);
+	}
 	if (fep->reg_phy)
 		regulator_disable(fep->reg_phy);
 	clk_disable_unprepare(fep->clk_ptp);
@@ -2017,11 +2022,6 @@ fec_drv_remove(struct platform_device *pdev)
 	clk_disable_unprepare(fep->clk_enet_out);
 	clk_disable_unprepare(fep->clk_ahb);
 	clk_disable_unprepare(fep->clk_ipg);
-	for (i = 0; i < FEC_IRQ_NUM; i++) {
-		int irq = platform_get_irq(pdev, i);
-		if (irq > 0)
-			free_irq(irq, ndev);
-	}
 	free_netdev(ndev);
 
 	platform_set_drvdata(pdev, NULL);
-- 
cgit v0.10.2


From 238f7bc74cde96e285e59a84e0c7bbd37faa8c07 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 27 May 2013 03:48:33 +0000
Subject: fec: Handle the regulator in suspend/resume

In order to save power, let's disable the regulator in the suspend function and
enable it in resume.

Tested on a mx28evk board.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index cac667d..866b922 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2044,6 +2044,9 @@ fec_suspend(struct device *dev)
 	clk_disable_unprepare(fep->clk_ahb);
 	clk_disable_unprepare(fep->clk_ipg);
 
+	if (fep->reg_phy)
+		regulator_disable(fep->reg_phy);
+
 	return 0;
 }
 
@@ -2052,6 +2055,13 @@ fec_resume(struct device *dev)
 {
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct fec_enet_private *fep = netdev_priv(ndev);
+	int ret;
+
+	if (fep->reg_phy) {
+		ret = regulator_enable(fep->reg_phy);
+		if (ret)
+			return ret;
+	}
 
 	clk_prepare_enable(fep->clk_enet_out);
 	clk_prepare_enable(fep->clk_ahb);
-- 
cgit v0.10.2


From dfd93c977d84fef77404b689ef95bc716b313533 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 27 May 2013 19:01:12 +0000
Subject: net: ethernet: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Roland Stigge <stigge@antcom.de>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Tested-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/8390/ne.c b/drivers/net/ethernet/8390/ne.c
index 47618e5..b2e8405 100644
--- a/drivers/net/ethernet/8390/ne.c
+++ b/drivers/net/ethernet/8390/ne.c
@@ -849,7 +849,6 @@ static int ne_drv_remove(struct platform_device *pdev)
 		free_irq(dev->irq, dev);
 		release_region(dev->base_addr, NE_IO_EXTENT);
 		free_netdev(dev);
-		platform_set_drvdata(pdev, NULL);
 	}
 	return 0;
 }
diff --git a/drivers/net/ethernet/adi/bfin_mac.c b/drivers/net/ethernet/adi/bfin_mac.c
index dada66b..e904b38 100644
--- a/drivers/net/ethernet/adi/bfin_mac.c
+++ b/drivers/net/ethernet/adi/bfin_mac.c
@@ -1719,7 +1719,6 @@ out_err_mii_probe:
 	mdiobus_unregister(lp->mii_bus);
 	mdiobus_free(lp->mii_bus);
 out_err_probe_mac:
-	platform_set_drvdata(pdev, NULL);
 	free_netdev(ndev);
 
 	return rc;
@@ -1732,8 +1731,6 @@ static int bfin_mac_remove(struct platform_device *pdev)
 
 	bfin_phc_release(lp);
 
-	platform_set_drvdata(pdev, NULL);
-
 	lp->mii_bus->priv = NULL;
 
 	unregister_netdev(ndev);
@@ -1868,7 +1865,6 @@ static int bfin_mii_bus_remove(struct platform_device *pdev)
 	struct bfin_mii_bus_platform_data *mii_bus_pd =
 		dev_get_platdata(&pdev->dev);
 
-	platform_set_drvdata(pdev, NULL);
 	mdiobus_unregister(miibus);
 	kfree(miibus->irq);
 	mdiobus_free(miibus);
diff --git a/drivers/net/ethernet/amd/au1000_eth.c b/drivers/net/ethernet/amd/au1000_eth.c
index 688aede..ceb45bc 100644
--- a/drivers/net/ethernet/amd/au1000_eth.c
+++ b/drivers/net/ethernet/amd/au1000_eth.c
@@ -1301,8 +1301,6 @@ static int au1000_remove(struct platform_device *pdev)
 	int i;
 	struct resource *base, *macen;
 
-	platform_set_drvdata(pdev, NULL);
-
 	unregister_netdev(dev);
 	mdiobus_unregister(aup->mii_bus);
 	mdiobus_free(aup->mii_bus);
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index 0b3e23e..e46466c 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -1847,7 +1847,6 @@ static int bcm_enet_remove(struct platform_device *pdev)
 	clk_disable_unprepare(priv->mac_clk);
 	clk_put(priv->mac_clk);
 
-	platform_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 	return 0;
 }
diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c
index cc9a185..3f19571 100644
--- a/drivers/net/ethernet/cadence/at91_ether.c
+++ b/drivers/net/ethernet/cadence/at91_ether.c
@@ -435,7 +435,6 @@ static int at91ether_remove(struct platform_device *pdev)
 	unregister_netdev(dev);
 	clk_disable(lp->pclk);
 	free_netdev(dev);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index c89aa41..4465e27 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -1649,7 +1649,6 @@ err_out_put_pclk:
 err_out_free_dev:
 	free_netdev(dev);
 err_out:
-	platform_set_drvdata(pdev, NULL);
 	return err;
 }
 
@@ -1675,7 +1674,6 @@ static int __exit macb_remove(struct platform_device *pdev)
 		clk_disable_unprepare(bp->pclk);
 		clk_put(bp->pclk);
 		free_netdev(dev);
-		platform_set_drvdata(pdev, NULL);
 	}
 
 	return 0;
diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index 4a1f2fa..7cb148c 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -1790,7 +1790,6 @@ err_io:
 	free_netdev(ndev);
 err_alloc:
 	release_mem_region(res->start, resource_size(res));
-	platform_set_drvdata(pdev, NULL);
 	return ret;
 }
 
@@ -1813,7 +1812,6 @@ static int xgmac_remove(struct platform_device *pdev)
 	free_irq(ndev->irq, ndev);
 	free_irq(priv->pmt_irq, ndev);
 
-	platform_set_drvdata(pdev, NULL);
 	unregister_netdev(ndev);
 	netif_napi_del(&priv->napi);
 
diff --git a/drivers/net/ethernet/cirrus/ep93xx_eth.c b/drivers/net/ethernet/cirrus/ep93xx_eth.c
index 67b0388..e3d4ec8 100644
--- a/drivers/net/ethernet/cirrus/ep93xx_eth.c
+++ b/drivers/net/ethernet/cirrus/ep93xx_eth.c
@@ -783,7 +783,6 @@ static int ep93xx_eth_remove(struct platform_device *pdev)
 	dev = platform_get_drvdata(pdev);
 	if (dev == NULL)
 		return 0;
-	platform_set_drvdata(pdev, NULL);
 
 	ep = netdev_priv(dev);
 
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index dd243a1..a13b312 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -1699,8 +1699,6 @@ dm9000_drv_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	unregister_netdev(ndev);
 	dm9000_release_board(pdev, netdev_priv(ndev));
 	free_netdev(ndev);		/* free device structure */
diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
index 5722bc6..cf579fb 100644
--- a/drivers/net/ethernet/ethoc.c
+++ b/drivers/net/ethernet/ethoc.c
@@ -1147,8 +1147,6 @@ static int ethoc_remove(struct platform_device *pdev)
 	struct net_device *netdev = platform_get_drvdata(pdev);
 	struct ethoc *priv = netdev_priv(netdev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	if (netdev) {
 		netif_napi_del(&priv->napi);
 		phy_disconnect(priv->phy);
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 21b85fb..934e1ae 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1311,7 +1311,6 @@ err_ioremap:
 	release_resource(priv->res);
 err_req_mem:
 	netif_napi_del(&priv->napi);
-	platform_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 err_alloc_etherdev:
 	return err;
@@ -1335,7 +1334,6 @@ static int __exit ftgmac100_remove(struct platform_device *pdev)
 	release_resource(priv->res);
 
 	netif_napi_del(&priv->napi);
-	platform_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 	return 0;
 }
diff --git a/drivers/net/ethernet/faraday/ftmac100.c b/drivers/net/ethernet/faraday/ftmac100.c
index a6eda8d..4658f4c 100644
--- a/drivers/net/ethernet/faraday/ftmac100.c
+++ b/drivers/net/ethernet/faraday/ftmac100.c
@@ -1149,7 +1149,6 @@ err_ioremap:
 	release_resource(priv->res);
 err_req_mem:
 	netif_napi_del(&priv->napi);
-	platform_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 err_alloc_etherdev:
 	return err;
@@ -1169,7 +1168,6 @@ static int __exit ftmac100_remove(struct platform_device *pdev)
 	release_resource(priv->res);
 
 	netif_napi_del(&priv->napi);
-	platform_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 	return 0;
 }
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 866b922..9b0c647 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -2024,8 +2024,6 @@ fec_drv_remove(struct platform_device *pdev)
 	clk_disable_unprepare(fep->clk_ipg);
 	free_netdev(ndev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 0b57085..64646eb 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -1211,7 +1211,6 @@ static int korina_remove(struct platform_device *pdev)
 	iounmap(lp->rx_dma_regs);
 	iounmap(lp->tx_dma_regs);
 
-	platform_set_drvdata(pdev, NULL);
 	unregister_netdev(bif->dev);
 	free_netdev(bif->dev);
 
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 2ad1494..afb8bcb 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2813,8 +2813,6 @@ static int mv643xx_eth_remove(struct platform_device *pdev)
 
 	free_netdev(mp->dev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index c966785..cd0ea20 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2804,8 +2804,6 @@ static int mvneta_remove(struct platform_device *pdev)
 	irq_dispose_mapping(dev->irq);
 	free_netdev(dev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index 339bb32..2602cf7 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -1602,7 +1602,6 @@ static int pxa168_eth_remove(struct platform_device *pdev)
 	unregister_netdev(dev);
 	cancel_work_sync(&pep->tx_timeout_task);
 	free_netdev(dev);
-	platform_set_drvdata(pdev, NULL);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/micrel/ks8695net.c b/drivers/net/ethernet/micrel/ks8695net.c
index b6c60fd..106eb97 100644
--- a/drivers/net/ethernet/micrel/ks8695net.c
+++ b/drivers/net/ethernet/micrel/ks8695net.c
@@ -1600,7 +1600,6 @@ ks8695_drv_remove(struct platform_device *pdev)
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct ks8695_priv *ksp = netdev_priv(ndev);
 
-	platform_set_drvdata(pdev, NULL);
 	netif_napi_del(&ksp->napi);
 
 	unregister_netdev(ndev);
diff --git a/drivers/net/ethernet/micrel/ks8842.c b/drivers/net/ethernet/micrel/ks8842.c
index fbcb9e7..e393d99 100644
--- a/drivers/net/ethernet/micrel/ks8842.c
+++ b/drivers/net/ethernet/micrel/ks8842.c
@@ -1250,7 +1250,6 @@ static int ks8842_remove(struct platform_device *pdev)
 	iounmap(adapter->hw_addr);
 	free_netdev(netdev);
 	release_mem_region(iomem->start, resource_size(iomem));
-	platform_set_drvdata(pdev, NULL);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index ddaf138..e9b1a83 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -1671,7 +1671,6 @@ static int ks8851_remove(struct platform_device *pdev)
 	iounmap(ks->hw_addr);
 	free_netdev(netdev);
 	release_mem_region(iomem->start, resource_size(iomem));
-	platform_set_drvdata(pdev, NULL);
 	return 0;
 
 }
diff --git a/drivers/net/ethernet/netx-eth.c b/drivers/net/ethernet/netx-eth.c
index 5da3ffb..dc2c6f5 100644
--- a/drivers/net/ethernet/netx-eth.c
+++ b/drivers/net/ethernet/netx-eth.c
@@ -422,7 +422,6 @@ exit_free_pfifo:
 exit_free_xc:
 	free_xc(priv->xc);
 exit_free_netdev:
-	platform_set_drvdata(pdev, NULL);
 	free_netdev(ndev);
 exit:
 	return ret;
diff --git a/drivers/net/ethernet/nuvoton/w90p910_ether.c b/drivers/net/ethernet/nuvoton/w90p910_ether.c
index 3df8287..e88bdb1 100644
--- a/drivers/net/ethernet/nuvoton/w90p910_ether.c
+++ b/drivers/net/ethernet/nuvoton/w90p910_ether.c
@@ -1051,7 +1051,6 @@ failed_put_clk:
 	clk_put(ether->clk);
 failed_free_rxirq:
 	free_irq(ether->rxirq, pdev);
-	platform_set_drvdata(pdev, NULL);
 failed_free_txirq:
 	free_irq(ether->txirq, pdev);
 failed_free_io:
@@ -1080,7 +1079,6 @@ static int w90p910_ether_remove(struct platform_device *pdev)
 	free_irq(ether->rxirq, dev);
 
 	del_timer_sync(&ether->check_timer);
-	platform_set_drvdata(pdev, NULL);
 
 	free_netdev(dev);
 	return 0;
diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index 55a5548..a061b93 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -1483,7 +1483,6 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 	return 0;
 
 err_out_unregister_netdev:
-	platform_set_drvdata(pdev, NULL);
 	unregister_netdev(ndev);
 err_out_dma_unmap:
 	if (!use_iram_for_net(&pldat->pdev->dev) ||
@@ -1511,7 +1510,6 @@ static int lpc_eth_drv_remove(struct platform_device *pdev)
 	struct netdata_local *pldat = netdev_priv(ndev);
 
 	unregister_netdev(ndev);
-	platform_set_drvdata(pdev, NULL);
 
 	if (!use_iram_for_net(&pldat->pdev->dev) ||
 	    pldat->dma_buff_size > lpc32xx_return_iram_size())
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 42e9dd0..399a7c9 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2803,7 +2803,6 @@ static int sh_eth_drv_remove(struct platform_device *pdev)
 	unregister_netdev(ndev);
 	pm_runtime_disable(&pdev->dev);
 	free_netdev(ndev);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/s6gmac.c b/drivers/net/ethernet/s6gmac.c
index b6739af..a99739c 100644
--- a/drivers/net/ethernet/s6gmac.c
+++ b/drivers/net/ethernet/s6gmac.c
@@ -1040,7 +1040,6 @@ static int s6gmac_remove(struct platform_device *pdev)
 		unregister_netdev(dev);
 		free_irq(dev->irq, dev);
 		free_netdev(dev);
-		platform_set_drvdata(pdev, NULL);
 	}
 	return 0;
 }
diff --git a/drivers/net/ethernet/seeq/sgiseeq.c b/drivers/net/ethernet/seeq/sgiseeq.c
index 0ad5694..856e523 100644
--- a/drivers/net/ethernet/seeq/sgiseeq.c
+++ b/drivers/net/ethernet/seeq/sgiseeq.c
@@ -818,7 +818,6 @@ static int __exit sgiseeq_remove(struct platform_device *pdev)
 	dma_free_noncoherent(&pdev->dev, sizeof(*sp->srings), sp->srings,
 			     sp->srings_dma);
 	free_netdev(dev);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/sgi/meth.c b/drivers/net/ethernet/sgi/meth.c
index 4bdbaad9..9f5f35e 100644
--- a/drivers/net/ethernet/sgi/meth.c
+++ b/drivers/net/ethernet/sgi/meth.c
@@ -863,7 +863,6 @@ static int __exit meth_remove(struct platform_device *pdev)
 
 	unregister_netdev(dev);
 	free_netdev(dev);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index 9dd842d..345558f 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -2087,7 +2087,6 @@ static int smc911x_drv_probe(struct platform_device *pdev)
 	ndev->base_addr = res->start;
 	ret = smc911x_probe(ndev);
 	if (ret != 0) {
-		platform_set_drvdata(pdev, NULL);
 		iounmap(addr);
 release_both:
 		free_netdev(ndev);
@@ -2113,7 +2112,6 @@ static int smc911x_drv_remove(struct platform_device *pdev)
 	struct resource *res;
 
 	DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
-	platform_set_drvdata(pdev, NULL);
 
 	unregister_netdev(ndev);
 
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index dfbf978..cde13be 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -2299,7 +2299,6 @@ static int smc_drv_probe(struct platform_device *pdev)
 	return 0;
 
  out_iounmap:
-	platform_set_drvdata(pdev, NULL);
 	iounmap(addr);
  out_release_attrib:
 	smc_release_attrib(pdev, ndev);
@@ -2319,8 +2318,6 @@ static int smc_drv_remove(struct platform_device *pdev)
 	struct smc_local *lp = netdev_priv(ndev);
 	struct resource *res;
 
-	platform_set_drvdata(pdev, NULL);
-
 	unregister_netdev(ndev);
 
 	free_irq(ndev->irq, ndev);
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 3663b9e..a141921 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2284,7 +2284,6 @@ static int smsc911x_drv_remove(struct platform_device *pdev)
 	mdiobus_unregister(pdata->mii_bus);
 	mdiobus_free(pdata->mii_bus);
 
-	platform_set_drvdata(pdev, NULL);
 	unregister_netdev(dev);
 	free_irq(dev->irq, dev);
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
@@ -2539,7 +2538,6 @@ out_disable_resources:
 out_enable_resources_fail:
 	smsc911x_free_resources(pdev);
 out_request_resources_fail:
-	platform_set_drvdata(pdev, NULL);
 	iounmap(pdata->ioaddr);
 	free_netdev(dev);
 out_release_io_1:
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 1d3780f..17bc782 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -171,8 +171,6 @@ static int stmmac_pltfr_remove(struct platform_device *pdev)
 	if (priv->plat->exit)
 		priv->plat->exit(pdev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	return ret;
 }
 
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 21a5b29..89a4c40 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1940,7 +1940,6 @@ static int cpsw_remove(struct platform_device *pdev)
 	struct cpsw_priv *priv = netdev_priv(ndev);
 	int i;
 
-	platform_set_drvdata(pdev, NULL);
 	if (priv->data.dual_emac)
 		unregister_netdev(cpsw_get_slave_ndev(priv, 1));
 	unregister_netdev(ndev);
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 860e15d..efb6f65 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -2037,8 +2037,6 @@ static int davinci_emac_remove(struct platform_device *pdev)
 
 	dev_notice(&ndev->dev, "DaVinci EMAC: davinci_emac_remove()\n");
 
-	platform_set_drvdata(pdev, NULL);
-
 	if (priv->txchan)
 		cpdma_chan_destroy(priv->txchan);
 	if (priv->rxchan)
diff --git a/drivers/net/ethernet/tundra/tsi108_eth.c b/drivers/net/ethernet/tundra/tsi108_eth.c
index 3c69a04..01bdc6c 100644
--- a/drivers/net/ethernet/tundra/tsi108_eth.c
+++ b/drivers/net/ethernet/tundra/tsi108_eth.c
@@ -1682,7 +1682,6 @@ static int tsi108_ether_remove(struct platform_device *pdev)
 
 	unregister_netdev(dev);
 	tsi108_stop_ethernet(dev);
-	platform_set_drvdata(pdev, NULL);
 	iounmap(priv->regs);
 	iounmap(priv->phyregs);
 	free_netdev(dev);
diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c
index a518dca..30fed08 100644
--- a/drivers/net/ethernet/wiznet/w5100.c
+++ b/drivers/net/ethernet/wiznet/w5100.c
@@ -734,7 +734,6 @@ err_hw_probe:
 	unregister_netdev(ndev);
 err_register:
 	free_netdev(ndev);
-	platform_set_drvdata(pdev, NULL);
 	return err;
 }
 
@@ -750,7 +749,6 @@ static int w5100_remove(struct platform_device *pdev)
 
 	unregister_netdev(ndev);
 	free_netdev(ndev);
-	platform_set_drvdata(pdev, NULL);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c
index 6e00e3f..e928845 100644
--- a/drivers/net/ethernet/wiznet/w5300.c
+++ b/drivers/net/ethernet/wiznet/w5300.c
@@ -646,7 +646,6 @@ err_hw_probe:
 	unregister_netdev(ndev);
 err_register:
 	free_netdev(ndev);
-	platform_set_drvdata(pdev, NULL);
 	return err;
 }
 
@@ -662,7 +661,6 @@ static int w5300_remove(struct platform_device *pdev)
 
 	unregister_netdev(ndev);
 	free_netdev(ndev);
-	platform_set_drvdata(pdev, NULL);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index 6958a5e..3d689fc 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -1472,7 +1472,6 @@ err_phy_dis:
 	phy_disconnect(port->phydev);
 err_free_mem:
 	npe_port_tab[NPE_ID(port->id)] = NULL;
-	platform_set_drvdata(pdev, NULL);
 	release_resource(port->mem_res);
 err_npe_rel:
 	npe_release(port->npe);
@@ -1489,7 +1488,6 @@ static int eth_remove_one(struct platform_device *pdev)
 	unregister_netdev(dev);
 	phy_disconnect(port->phydev);
 	npe_port_tab[NPE_ID(port->id)] = NULL;
-	platform_set_drvdata(pdev, NULL);
 	npe_release(port->npe);
 	release_resource(port->mem_res);
 	free_netdev(dev);
-- 
cgit v0.10.2


From bf3a33cec8d8b380647c9bbf17439e0c1695ba43 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 27 May 2013 19:03:49 +0000
Subject: net: irda: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/irda/bfin_sir.c b/drivers/net/irda/bfin_sir.c
index 22b4527..c74f384 100644
--- a/drivers/net/irda/bfin_sir.c
+++ b/drivers/net/irda/bfin_sir.c
@@ -794,7 +794,6 @@ static int bfin_sir_remove(struct platform_device *pdev)
 	kfree(self->rx_buff.head);
 	free_netdev(dev);
 	kfree(sir_port);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
diff --git a/drivers/net/irda/sh_irda.c b/drivers/net/irda/sh_irda.c
index 9448587..4455425 100644
--- a/drivers/net/irda/sh_irda.c
+++ b/drivers/net/irda/sh_irda.c
@@ -838,7 +838,6 @@ static int sh_irda_remove(struct platform_device *pdev)
 	sh_irda_remove_iobuf(self);
 	iounmap(self->membase);
 	free_netdev(ndev);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
diff --git a/drivers/net/irda/sh_sir.c b/drivers/net/irda/sh_sir.c
index 24aefcd..89682b4 100644
--- a/drivers/net/irda/sh_sir.c
+++ b/drivers/net/irda/sh_sir.c
@@ -796,7 +796,6 @@ static int sh_sir_remove(struct platform_device *pdev)
 	sh_sir_remove_iobuf(self);
 	iounmap(self->membase);
 	free_netdev(ndev);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
-- 
cgit v0.10.2


From 785ec305b26ee23e0efb834b5cd0dd24070ba1bf Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 27 May 2013 19:07:11 +0000
Subject: net: wireless: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c
index 8e8bcc7a..e9bc9e6 100644
--- a/drivers/net/wireless/ath/ath5k/ahb.c
+++ b/drivers/net/wireless/ath/ath5k/ahb.c
@@ -185,7 +185,6 @@ static int ath_ahb_probe(struct platform_device *pdev)
 
  err_free_hw:
 	ieee80211_free_hw(hw);
-	platform_set_drvdata(pdev, NULL);
  err_iounmap:
         iounmap(mem);
  err_out:
@@ -221,7 +220,6 @@ static int ath_ahb_remove(struct platform_device *pdev)
 
 	ath5k_deinit_ah(ah);
 	iounmap(ah->iobase);
-	platform_set_drvdata(pdev, NULL);
 	ieee80211_free_hw(hw);
 
 	return 0;
diff --git a/drivers/net/wireless/ath/ath9k/ahb.c b/drivers/net/wireless/ath/ath9k/ahb.c
index d1ff3c2..072e4b5 100644
--- a/drivers/net/wireless/ath/ath9k/ahb.c
+++ b/drivers/net/wireless/ath/ath9k/ahb.c
@@ -150,7 +150,6 @@ static int ath_ahb_probe(struct platform_device *pdev)
 	free_irq(irq, sc);
  err_free_hw:
 	ieee80211_free_hw(hw);
-	platform_set_drvdata(pdev, NULL);
 	return ret;
 }
 
@@ -164,7 +163,6 @@ static int ath_ahb_remove(struct platform_device *pdev)
 		ath9k_deinit_device(sc);
 		free_irq(sc->irq, sc);
 		ieee80211_free_hw(sc->hw);
-		platform_set_drvdata(pdev, NULL);
 	}
 
 	return 0;
-- 
cgit v0.10.2


From 1010dcceed9d45dc8a07c50ec93e5d0c1ef7cc24 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 27 May 2013 19:08:17 +0000
Subject: net: wan: remove unnecessary platform_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c
index fc9d11d..e7bbdb7 100644
--- a/drivers/net/wan/ixp4xx_hss.c
+++ b/drivers/net/wan/ixp4xx_hss.c
@@ -1384,7 +1384,6 @@ static int hss_remove_one(struct platform_device *pdev)
 	unregister_hdlc_device(port->netdev);
 	free_netdev(port->netdev);
 	npe_release(port->npe);
-	platform_set_drvdata(pdev, NULL);
 	kfree(port);
 	return 0;
 }
-- 
cgit v0.10.2


From 7ec872114251b618adf5a2688de0ca00de63635d Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 23 May 2013 01:11:11 +0000
Subject: net: ethtool: disambiguate XCVR_* meaning

Add a comment which explains the real meaning of XCVR_INTERNAL (PHY and
Ethernet MAC in the same package/die) and XCVR_EXTERNAL (PHY and
Ethernet MAC in a different package/die). Most if not all of the drivers
setting their transceiver type already do it the way the comment
describes it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 0c9b448..38dbafa 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -993,8 +993,8 @@ enum ethtool_sfeatures_retval_bits {
 #define PORT_OTHER		0xff
 
 /* Which transceiver to use. */
-#define XCVR_INTERNAL		0x00
-#define XCVR_EXTERNAL		0x01
+#define XCVR_INTERNAL		0x00 /* PHY and MAC are in the same package */
+#define XCVR_EXTERNAL		0x01 /* PHY and MAC are in different packages */
 #define XCVR_DUMMY1		0x02
 #define XCVR_DUMMY2		0x03
 #define XCVR_DUMMY3		0x04
-- 
cgit v0.10.2


From 4284b6a535a9aab33e5f3c37929143508dd2ee60 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 23 May 2013 01:11:12 +0000
Subject: phy: allow drivers to flag a PHY device as internal

libphy currently always reports a PHY as an external transceiver from
the ethtool output. This is inaccurate, because some drivers should be
able to tell that a PHY device is an internal transceiver of an Ethernet
MAC. Add a new flag (PHY_IS_INTERNAL) which can be set by PHY drivers
just like other flags, and a corresponding helper: phy_is_internal()
which can be used by networking drivers to query if a given
PHY device is internal.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 2d28a0e..b2a94e4 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -294,7 +294,8 @@ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd)
 	cmd->duplex = phydev->duplex;
 	cmd->port = PORT_MII;
 	cmd->phy_address = phydev->addr;
-	cmd->transceiver = XCVR_EXTERNAL;
+	cmd->transceiver = phy_is_internal(phydev) ?
+		XCVR_INTERNAL : XCVR_EXTERNAL;
 	cmd->autoneg = phydev->autoneg;
 
 	return 0;
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index b55aa33..74630e9 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1017,6 +1017,9 @@ static int phy_probe(struct device *dev)
 			phy_interrupt_is_valid(phydev))
 		phydev->irq = PHY_POLL;
 
+	if (phydrv->flags & PHY_IS_INTERNAL)
+		phydev->is_internal = true;
+
 	mutex_lock(&phydev->lock);
 
 	/* Start out supporting everything. Eventually,
diff --git a/include/linux/phy.h b/include/linux/phy.h
index fdfa115..ee411b0 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -49,6 +49,7 @@
 
 #define PHY_HAS_INTERRUPT	0x00000001
 #define PHY_HAS_MAGICANEG	0x00000002
+#define PHY_IS_INTERNAL		0x00000004
 
 /* Interface Mode definitions */
 typedef enum {
@@ -261,6 +262,7 @@ struct phy_c45_device_ids {
  * phy_id: UID for this device found during discovery
  * c45_ids: 802.3-c45 Device Identifers if is_c45.
  * is_c45:  Set to true if this phy uses clause 45 addressing.
+ * is_internal: Set to true if this phy is internal to a MAC.
  * state: state of the PHY for management purposes
  * dev_flags: Device-specific flags used by the PHY driver.
  * addr: Bus address of PHY
@@ -298,6 +300,7 @@ struct phy_device {
 
 	struct phy_c45_device_ids c45_ids;
 	bool is_c45;
+	bool is_internal;
 
 	enum phy_state state;
 
@@ -520,6 +523,15 @@ static inline bool phy_interrupt_is_valid(struct phy_device *phydev)
 	return phydev->irq != PHY_POLL && phydev->irq != PHY_IGNORE_INTERRUPT;
 }
 
+/**
+ * phy_is_internal - Convenience function for testing if a PHY is internal
+ * @phydev: the phy_device struct
+ */
+static inline bool phy_is_internal(struct phy_device *phydev)
+{
+	return phydev->is_internal;
+}
+
 struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
 		bool is_c45, struct phy_c45_device_ids *c45_ids);
 struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
-- 
cgit v0.10.2


From 50ab731e967d65549b11b808f129329dd614e8d9 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 23 May 2013 01:11:13 +0000
Subject: phy: bcm63xx: report Broadcom BCM63xx PHYs as internal

The Broadcom BCM63xx PHY driver is for the SoC internal PHYs, flag these
as internal PHY devices.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/bcm63xx.c b/drivers/net/phy/bcm63xx.c
index 84c7a39..ac55b08 100644
--- a/drivers/net/phy/bcm63xx.c
+++ b/drivers/net/phy/bcm63xx.c
@@ -78,7 +78,7 @@ static struct phy_driver bcm63xx_driver[] = {
 	.name		= "Broadcom BCM63XX (1)",
 	/* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */
 	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause),
-	.flags		= PHY_HAS_INTERRUPT,
+	.flags		= PHY_HAS_INTERRUPT | PHY_IS_INTERNAL,
 	.config_init	= bcm63xx_config_init,
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
@@ -91,7 +91,7 @@ static struct phy_driver bcm63xx_driver[] = {
 	.phy_id_mask	= 0xfffffc00,
 	.name		= "Broadcom BCM63XX (2)",
 	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause),
-	.flags		= PHY_HAS_INTERRUPT,
+	.flags		= PHY_HAS_INTERRUPT | PHY_IS_INTERNAL,
 	.config_init	= bcm63xx_config_init,
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
-- 
cgit v0.10.2


From 1a37e412a0225fcba5587f24c0dfc7636efc8b69 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Thu, 23 May 2013 21:02:51 +0000
Subject: net: Use 16bits for *_headers fields of struct skbuff

In order to mitigate ongoing incresase in the size of struct skbuff
use 16 bit integer offsets rather than pointers for inner_*_headers.

This appears to reduce the size of struct skbuff from 0xd0 to 0xc0
bytes on x86_64 with the following all unset.

	CONFIG_XFRM
	CONFIG_NF_CONNTRACK
	CONFIG_NF_CONNTRACK_MODULE
	NET_SKBUFF_NF_DEFRAG_NEEDED
	CONFIG_BRIDGE_NETFILTER
	CONFIG_NET_SCHED
	CONFIG_IPV6_NDISC_NODETYPE
	CONFIG_NET_DMA
	CONFIG_NETWORK_SECMARK

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2e0ced1..5663e35 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -509,12 +509,12 @@ struct sk_buff {
 		__u32		reserved_tailroom;
 	};
 
-	sk_buff_data_t		inner_transport_header;
-	sk_buff_data_t		inner_network_header;
-	sk_buff_data_t		inner_mac_header;
-	sk_buff_data_t		transport_header;
-	sk_buff_data_t		network_header;
-	sk_buff_data_t		mac_header;
+	__u16			inner_transport_header;
+	__u16			inner_network_header;
+	__u16			inner_mac_header;
+	__u16			transport_header;
+	__u16			network_header;
+	__u16			mac_header;
 	/* These elements must be at the end, see alloc_skb() for details.  */
 	sk_buff_data_t		tail;
 	sk_buff_data_t		end;
@@ -1527,7 +1527,6 @@ static inline void skb_reset_mac_len(struct sk_buff *skb)
 	skb->mac_len = skb->network_header - skb->mac_header;
 }
 
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
 static inline unsigned char *skb_inner_transport_header(const struct sk_buff
 							*skb)
 {
@@ -1638,112 +1637,6 @@ static inline void skb_set_mac_header(struct sk_buff *skb, const int offset)
 	skb->mac_header += offset;
 }
 
-#else /* NET_SKBUFF_DATA_USES_OFFSET */
-static inline unsigned char *skb_inner_transport_header(const struct sk_buff
-							*skb)
-{
-	return skb->inner_transport_header;
-}
-
-static inline void skb_reset_inner_transport_header(struct sk_buff *skb)
-{
-	skb->inner_transport_header = skb->data;
-}
-
-static inline void skb_set_inner_transport_header(struct sk_buff *skb,
-						   const int offset)
-{
-	skb->inner_transport_header = skb->data + offset;
-}
-
-static inline unsigned char *skb_inner_network_header(const struct sk_buff *skb)
-{
-	return skb->inner_network_header;
-}
-
-static inline void skb_reset_inner_network_header(struct sk_buff *skb)
-{
-	skb->inner_network_header = skb->data;
-}
-
-static inline void skb_set_inner_network_header(struct sk_buff *skb,
-						const int offset)
-{
-	skb->inner_network_header = skb->data + offset;
-}
-
-static inline unsigned char *skb_inner_mac_header(const struct sk_buff *skb)
-{
-	return skb->inner_mac_header;
-}
-
-static inline void skb_reset_inner_mac_header(struct sk_buff *skb)
-{
-	skb->inner_mac_header = skb->data;
-}
-
-static inline void skb_set_inner_mac_header(struct sk_buff *skb,
-						const int offset)
-{
-	skb->inner_mac_header = skb->data + offset;
-}
-static inline bool skb_transport_header_was_set(const struct sk_buff *skb)
-{
-	return skb->transport_header != NULL;
-}
-
-static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
-{
-	return skb->transport_header;
-}
-
-static inline void skb_reset_transport_header(struct sk_buff *skb)
-{
-	skb->transport_header = skb->data;
-}
-
-static inline void skb_set_transport_header(struct sk_buff *skb,
-					    const int offset)
-{
-	skb->transport_header = skb->data + offset;
-}
-
-static inline unsigned char *skb_network_header(const struct sk_buff *skb)
-{
-	return skb->network_header;
-}
-
-static inline void skb_reset_network_header(struct sk_buff *skb)
-{
-	skb->network_header = skb->data;
-}
-
-static inline void skb_set_network_header(struct sk_buff *skb, const int offset)
-{
-	skb->network_header = skb->data + offset;
-}
-
-static inline unsigned char *skb_mac_header(const struct sk_buff *skb)
-{
-	return skb->mac_header;
-}
-
-static inline int skb_mac_header_was_set(const struct sk_buff *skb)
-{
-	return skb->mac_header != NULL;
-}
-
-static inline void skb_reset_mac_header(struct sk_buff *skb)
-{
-	skb->mac_header = skb->data;
-}
-
-static inline void skb_set_mac_header(struct sk_buff *skb, const int offset)
-{
-	skb->mac_header = skb->data + offset;
-}
-#endif /* NET_SKBUFF_DATA_USES_OFFSET */
-
 static inline void skb_probe_transport_header(struct sk_buff *skb,
 					      const int offset_hint)
 {
-- 
cgit v0.10.2


From 0d89d2035fe063461a5ddb609b2c12e7fb006e44 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Thu, 23 May 2013 21:02:52 +0000
Subject: MPLS: Add limited GSO support

In the case where a non-MPLS packet is received and an MPLS stack is
added it may well be the case that the original skb is GSO but the
NIC used for transmit does not support GSO of MPLS packets.

The aim of this code is to provide GSO in software for MPLS packets
whose skbs are GSO.

SKB Usage:

When an implementation adds an MPLS stack to a non-MPLS packet it should do
the following to skb metadata:

* Set skb->inner_protocol to the old non-MPLS ethertype of the packet.
  skb->inner_protocol is added by this patch.

* Set skb->protocol to the new MPLS ethertype of the packet.

* Set skb->network_header to correspond to the
  end of the L3 header, including the MPLS label stack.

I have posted a patch, "[PATCH v3.29] datapath: Add basic MPLS support to
kernel" which adds MPLS support to the kernel datapath of Open vSwtich.
That patch sets the above requirements in datapath/actions.c:push_mpls()
and was used to exercise this code.  The datapath patch is against the Open
vSwtich tree but it is intended that it be added to the Open vSwtich code
present in the mainline Linux kernel at some point.

Features:

I believe that the approach that I have taken is at least partially
consistent with the handling of other protocols.  Jesse, I understand that
you have some ideas here.  I am more than happy to change my implementation.

This patch adds dev->mpls_features which may be used by devices
to advertise features supported for MPLS packets.

A new NETIF_F_MPLS_GSO feature is added for devices which support
hardware MPLS GSO offload.  Currently no devices support this
and MPLS GSO always falls back to software.

Alternate Implementation:

One possible alternate implementation is to teach netif_skb_features()
and skb_network_protocol() about MPLS, in a similar way to their
understanding of VLANs. I believe this would avoid the need
for net/mpls/mpls_gso.c and in particular the calls to
__skb_push() and __skb_push() in mpls_gso_segment().

I have decided on the implementation in this patch as it should
not introduce any overhead in the case where mpls_gso is not compiled
into the kernel or inserted as a module.

MPLS GSO suggested by Jesse Gross.
Based in part on "v4 GRE: Add TCP segmentation offload for GRE"
by Pravin B Shelar.

Cc: Jesse Gross <jesse@nicira.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 09906b7..a2a89a5 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -43,8 +43,9 @@ enum {
 	NETIF_F_FSO_BIT,		/* ... FCoE segmentation */
 	NETIF_F_GSO_GRE_BIT,		/* ... GRE with TSO */
 	NETIF_F_GSO_UDP_TUNNEL_BIT,	/* ... UDP TUNNEL with TSO */
+	NETIF_F_GSO_MPLS_BIT,		/* ... MPLS segmentation */
 	/**/NETIF_F_GSO_LAST =		/* last bit, see GSO_MASK */
-		NETIF_F_GSO_UDP_TUNNEL_BIT,
+		NETIF_F_GSO_MPLS_BIT,
 
 	NETIF_F_FCOE_CRC_BIT,		/* FCoE CRC32 */
 	NETIF_F_SCTP_CSUM_BIT,		/* SCTP checksum offload */
@@ -107,6 +108,7 @@ enum {
 #define NETIF_F_RXALL		__NETIF_F(RXALL)
 #define NETIF_F_GSO_GRE		__NETIF_F(GSO_GRE)
 #define NETIF_F_GSO_UDP_TUNNEL	__NETIF_F(GSO_UDP_TUNNEL)
+#define NETIF_F_GSO_MPLS	__NETIF_F(GSO_MPLS)
 #define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)
 #define NETIF_F_HW_VLAN_STAG_RX	__NETIF_F(HW_VLAN_STAG_RX)
 #define NETIF_F_HW_VLAN_STAG_TX	__NETIF_F(HW_VLAN_STAG_TX)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ea7b6bc..6b2bb46 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1088,6 +1088,8 @@ struct net_device {
 	 * need to set them appropriately.
 	 */
 	netdev_features_t	hw_enc_features;
+	/* mask of fetures inheritable by MPLS */
+	netdev_features_t	mpls_features;
 
 	/* Interface index. Unique device identifier	*/
 	int			ifindex;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5663e35..8f2b830 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -319,6 +319,8 @@ enum {
 	SKB_GSO_GRE = 1 << 6,
 
 	SKB_GSO_UDP_TUNNEL = 1 << 7,
+
+	SKB_GSO_MPLS = 1 << 8,
 };
 
 #if BITS_PER_LONG > 32
@@ -389,6 +391,7 @@ typedef unsigned char *sk_buff_data_t;
  *	@dropcount: total number of sk_receive_queue overflows
  *	@vlan_proto: vlan encapsulation protocol
  *	@vlan_tci: vlan tag control information
+ *	@inner_protocol: Protocol (encapsulation)
  *	@inner_transport_header: Inner transport layer header (encapsulation)
  *	@inner_network_header: Network layer header (encapsulation)
  *	@inner_mac_header: Link layer header (encapsulation)
@@ -509,6 +512,7 @@ struct sk_buff {
 		__u32		reserved_tailroom;
 	};
 
+	__be16			inner_protocol;
 	__u16			inner_transport_header;
 	__u16			inner_network_header;
 	__u16			inner_mac_header;
diff --git a/net/Kconfig b/net/Kconfig
index 08de901..523e43e 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -218,6 +218,7 @@ source "net/batman-adv/Kconfig"
 source "net/openvswitch/Kconfig"
 source "net/vmw_vsock/Kconfig"
 source "net/netlink/Kconfig"
+source "net/mpls/Kconfig"
 
 config RPS
 	boolean
diff --git a/net/Makefile b/net/Makefile
index 091e7b04..9492e8c 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -70,3 +70,4 @@ obj-$(CONFIG_BATMAN_ADV)	+= batman-adv/
 obj-$(CONFIG_NFC)		+= nfc/
 obj-$(CONFIG_OPENVSWITCH)	+= openvswitch/
 obj-$(CONFIG_VSOCKETS)	+= vmw_vsock/
+obj-$(CONFIG_NET_MPLS_GSO)	+= mpls/
diff --git a/net/core/dev.c b/net/core/dev.c
index 50c02de..2f09cb2 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5277,6 +5277,10 @@ int register_netdevice(struct net_device *dev)
 	 */
 	dev->hw_enc_features |= NETIF_F_SG;
 
+	/* Make NETIF_F_SG inheritable to MPLS.
+	 */
+	dev->mpls_features |= NETIF_F_SG;
+
 	ret = call_netdevice_notifiers(NETDEV_POST_INIT, dev);
 	ret = notifier_to_errno(ret);
 	if (ret)
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 22efdaa..4e6f63a 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -82,6 +82,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
 	[NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",
 	[NETIF_F_GSO_GRE_BIT] =		 "tx-gre-segmentation",
 	[NETIF_F_GSO_UDP_TUNNEL_BIT] =	 "tx-udp_tnl-segmentation",
+	[NETIF_F_GSO_MPLS_BIT] =	 "tx-mpls-segmentation",
 
 	[NETIF_F_FCOE_CRC_BIT] =         "tx-checksum-fcoe-crc",
 	[NETIF_F_SCTP_CSUM_BIT] =        "tx-checksum-sctp",
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index d01be2a..b05ae96 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1295,6 +1295,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 		       SKB_GSO_GRE |
 		       SKB_GSO_TCPV6 |
 		       SKB_GSO_UDP_TUNNEL |
+		       SKB_GSO_MPLS |
 		       0)))
 		goto out;
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index d87ce72..ba4186e 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2917,6 +2917,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 			       SKB_GSO_TCP_ECN |
 			       SKB_GSO_TCPV6 |
 			       SKB_GSO_GRE |
+			       SKB_GSO_MPLS |
 			       SKB_GSO_UDP_TUNNEL |
 			       0) ||
 			     !(type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))))
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 0bf5d39..aa5eff4 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2381,7 +2381,7 @@ struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
 
 		if (unlikely(type & ~(SKB_GSO_UDP | SKB_GSO_DODGY |
 				      SKB_GSO_UDP_TUNNEL |
-				      SKB_GSO_GRE) ||
+				      SKB_GSO_GRE | SKB_GSO_MPLS) ||
 			     !(type & (SKB_GSO_UDP))))
 			goto out;
 
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index 71b766e..a263b99 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -98,6 +98,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 		       SKB_GSO_TCP_ECN |
 		       SKB_GSO_GRE |
 		       SKB_GSO_UDP_TUNNEL |
+		       SKB_GSO_MPLS |
 		       SKB_GSO_TCPV6 |
 		       0)))
 		goto out;
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index 3bb3a89..76d401a 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -63,7 +63,8 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
 		if (unlikely(type & ~(SKB_GSO_UDP |
 				      SKB_GSO_DODGY |
 				      SKB_GSO_UDP_TUNNEL |
-				      SKB_GSO_GRE) ||
+				      SKB_GSO_GRE |
+				      SKB_GSO_MPLS) ||
 			     !(type & (SKB_GSO_UDP))))
 			goto out;
 
diff --git a/net/mpls/Kconfig b/net/mpls/Kconfig
new file mode 100644
index 0000000..37421db
--- /dev/null
+++ b/net/mpls/Kconfig
@@ -0,0 +1,9 @@
+#
+# MPLS configuration
+#
+config NET_MPLS_GSO
+	tristate "MPLS: GSO support"
+	help
+	 This is helper module to allow segmentation of non-MPLS GSO packets
+	 that have had MPLS stack entries pushed onto them and thus
+	 become MPLS GSO packets.
diff --git a/net/mpls/Makefile b/net/mpls/Makefile
new file mode 100644
index 0000000..0a3c171
--- /dev/null
+++ b/net/mpls/Makefile
@@ -0,0 +1,4 @@
+#
+# Makefile for MPLS.
+#
+obj-y += mpls_gso.o
diff --git a/net/mpls/mpls_gso.c b/net/mpls/mpls_gso.c
new file mode 100644
index 0000000..1bec121
--- /dev/null
+++ b/net/mpls/mpls_gso.c
@@ -0,0 +1,108 @@
+/*
+ *	MPLS GSO Support
+ *
+ *	Authors: Simon Horman (horms@verge.net.au)
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	Based on: GSO portions of net/ipv4/gre.c
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/netdev_features.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+
+static struct sk_buff *mpls_gso_segment(struct sk_buff *skb,
+				       netdev_features_t features)
+{
+	struct sk_buff *segs = ERR_PTR(-EINVAL);
+	netdev_features_t mpls_features;
+	__be16 mpls_protocol;
+
+	if (unlikely(skb_shinfo(skb)->gso_type &
+				~(SKB_GSO_TCPV4 |
+				  SKB_GSO_TCPV6 |
+				  SKB_GSO_UDP |
+				  SKB_GSO_DODGY |
+				  SKB_GSO_TCP_ECN |
+				  SKB_GSO_GRE |
+				  SKB_GSO_MPLS)))
+		goto out;
+
+	/* Setup inner SKB. */
+	mpls_protocol = skb->protocol;
+	skb->protocol = skb->inner_protocol;
+
+	/* Push back the mac header that skb_mac_gso_segment() has pulled.
+	 * It will be re-pulled by the call to skb_mac_gso_segment() below
+	 */
+	__skb_push(skb, skb->mac_len);
+
+	/* Segment inner packet. */
+	mpls_features = skb->dev->mpls_features & netif_skb_features(skb);
+	segs = skb_mac_gso_segment(skb, mpls_features);
+
+
+	/* Restore outer protocol. */
+	skb->protocol = mpls_protocol;
+
+	/* Re-pull the mac header that the call to skb_mac_gso_segment()
+	 * above pulled.  It will be re-pushed after returning
+	 * skb_mac_gso_segment(), an indirect caller of this function.
+	 */
+	__skb_push(skb, skb->data - skb_mac_header(skb));
+
+out:
+	return segs;
+}
+
+static int mpls_gso_send_check(struct sk_buff *skb)
+{
+	return 0;
+}
+
+static struct packet_offload mpls_mc_offload = {
+	.type = cpu_to_be16(ETH_P_MPLS_MC),
+	.callbacks = {
+		.gso_send_check =	mpls_gso_send_check,
+		.gso_segment    =	mpls_gso_segment,
+	},
+};
+
+static struct packet_offload mpls_uc_offload = {
+	.type = cpu_to_be16(ETH_P_MPLS_UC),
+	.callbacks = {
+		.gso_send_check =	mpls_gso_send_check,
+		.gso_segment    =	mpls_gso_segment,
+	},
+};
+
+static int __init mpls_gso_init(void)
+{
+	pr_info("MPLS GSO support\n");
+
+	dev_add_offload(&mpls_uc_offload);
+	dev_add_offload(&mpls_mc_offload);
+
+	return 0;
+}
+
+static void __exit mpls_gso_exit(void)
+{
+	dev_remove_offload(&mpls_uc_offload);
+	dev_remove_offload(&mpls_mc_offload);
+}
+
+module_init(mpls_gso_init);
+module_exit(mpls_gso_exit);
+
+MODULE_DESCRIPTION("MPLS GSO support");
+MODULE_AUTHOR("Simon Horman (horms@verge.net.au)");
+MODULE_LICENSE("GPL");
-- 
cgit v0.10.2


From 87227b8b2d4d556a6924ad9af87450fdc3fcd7e3 Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Thu, 23 May 2013 23:01:22 +0000
Subject: net: micrel : ks8851-ml: add dt support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/micrel-ks8851.txt b/Documentation/devicetree/bindings/net/micrel-ks8851.txt
new file mode 100644
index 0000000..11ace3c
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/micrel-ks8851.txt
@@ -0,0 +1,9 @@
+Micrel KS8851 Ethernet mac
+
+Required properties:
+- compatible = "micrel,ks8851-ml" of parallel interface
+- reg : 2 physical address and size of registers for data and command
+- interrupts : interrupt connection
+
+Optional properties:
+- local-mac-address : Ethernet mac address to use
diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index e9b1a83..ac20098 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -35,6 +35,9 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/ks8851_mll.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_net.h>
 
 #define	DRV_NAME	"ks8851_mll"
 
@@ -1524,6 +1527,13 @@ static int ks_hw_init(struct ks_net *ks)
 	return true;
 }
 
+#if defined(CONFIG_OF)
+static const struct of_device_id ks8851_ml_dt_ids[] = {
+	{ .compatible = "micrel,ks8851-mll" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, ks8851_ml_dt_ids);
+#endif
 
 static int ks8851_probe(struct platform_device *pdev)
 {
@@ -1532,7 +1542,7 @@ static int ks8851_probe(struct platform_device *pdev)
 	struct net_device *netdev;
 	struct ks_net *ks;
 	u16 id, data;
-	struct ks8851_mll_platform_data *pdata;
+	const char *mac;
 
 	io_d = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	io_c = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -1619,13 +1629,21 @@ static int ks8851_probe(struct platform_device *pdev)
 	ks_wrreg16(ks, KS_OBCR, data | OBCR_ODS_16MA);
 
 	/* overwriting the default MAC address */
-	pdata = pdev->dev.platform_data;
-	if (!pdata) {
-		netdev_err(netdev, "No platform data\n");
-		err = -ENODEV;
-		goto err_pdata;
+	if (pdev->dev.of_node) {
+		mac = of_get_mac_address(pdev->dev.of_node);
+		if (mac)
+			memcpy(ks->mac_addr, mac, ETH_ALEN);
+	} else {
+		struct ks8851_mll_platform_data *pdata;
+
+		pdata = pdev->dev.platform_data;
+		if (!pdata) {
+			netdev_err(netdev, "No platform data\n");
+			err = -ENODEV;
+			goto err_pdata;
+		}
+		memcpy(ks->mac_addr, pdata->mac_addr, ETH_ALEN);
 	}
-	memcpy(ks->mac_addr, pdata->mac_addr, 6);
 	if (!is_valid_ether_addr(ks->mac_addr)) {
 		/* Use random MAC address if none passed */
 		eth_random_addr(ks->mac_addr);
@@ -1679,6 +1697,7 @@ static struct platform_driver ks8851_platform_driver = {
 	.driver = {
 		.name = DRV_NAME,
 		.owner = THIS_MODULE,
+		.of_match_table	= of_match_ptr(ks8851_ml_dt_ids),
 	},
 	.probe = ks8851_probe,
 	.remove = ks8851_remove,
-- 
cgit v0.10.2


From da6e378ba918cd0feeb90eeb84d8b42148bb0c82 Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Mon, 27 May 2013 19:53:31 +0000
Subject: netpoll: remove return value from netpoll_rx_disable()

The netpoll_rx_disable() will always return 0, it is no use and looks wordy,
so remove the unnecessary code and get rid of it in _dev_open and _dev_close.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index fa2cb76..f3c7c24 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -53,10 +53,10 @@ struct netpoll_info {
 };
 
 #ifdef CONFIG_NETPOLL
-extern int netpoll_rx_disable(struct net_device *dev);
+extern void netpoll_rx_disable(struct net_device *dev);
 extern void netpoll_rx_enable(struct net_device *dev);
 #else
-static inline int netpoll_rx_disable(struct net_device *dev) { return 0; }
+static inline void netpoll_rx_disable(struct net_device *dev) { return; }
 static inline void netpoll_rx_enable(struct net_device *dev) { return; }
 #endif
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 2f09cb2..5f74797 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1198,9 +1198,7 @@ static int __dev_open(struct net_device *dev)
 	 * If we don't do this there is a chance ndo_poll_controller
 	 * or ndo_poll may be running while we open the device
 	 */
-	ret = netpoll_rx_disable(dev);
-	if (ret)
-		return ret;
+	netpoll_rx_disable(dev);
 
 	ret = call_netdevice_notifiers(NETDEV_PRE_UP, dev);
 	ret = notifier_to_errno(ret);
@@ -1309,9 +1307,7 @@ static int __dev_close(struct net_device *dev)
 	LIST_HEAD(single);
 
 	/* Temporarily disable netpoll until the interface is down */
-	retval = netpoll_rx_disable(dev);
-	if (retval)
-		return retval;
+	netpoll_rx_disable(dev);
 
 	list_add(&dev->unreg_list, &single);
 	retval = __dev_close_many(&single);
@@ -1353,14 +1349,11 @@ static int dev_close_many(struct list_head *head)
  */
 int dev_close(struct net_device *dev)
 {
-	int ret = 0;
 	if (dev->flags & IFF_UP) {
 		LIST_HEAD(single);
 
 		/* Block netpoll rx while the interface is going down */
-		ret = netpoll_rx_disable(dev);
-		if (ret)
-			return ret;
+		netpoll_rx_disable(dev);
 
 		list_add(&dev->unreg_list, &single);
 		dev_close_many(&single);
@@ -1368,7 +1361,7 @@ int dev_close(struct net_device *dev)
 
 		netpoll_rx_enable(dev);
 	}
-	return ret;
+	return 0;
 }
 EXPORT_SYMBOL(dev_close);
 
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index cec074b..37deedd 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -247,7 +247,7 @@ static void netpoll_poll_dev(struct net_device *dev)
 	zap_completion_queue();
 }
 
-int netpoll_rx_disable(struct net_device *dev)
+void netpoll_rx_disable(struct net_device *dev)
 {
 	struct netpoll_info *ni;
 	int idx;
@@ -257,7 +257,6 @@ int netpoll_rx_disable(struct net_device *dev)
 	if (ni)
 		down(&ni->dev_lock);
 	srcu_read_unlock(&netpoll_srcu, idx);
-	return 0;
 }
 EXPORT_SYMBOL(netpoll_rx_disable);
 
-- 
cgit v0.10.2


From 1a9561a3bd0faaffa14dc20430805a46e311d00e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 27 May 2013 01:51:39 +0000
Subject: net/phy: Use module_spi_driver in spi_ks8995.c

module_spi_driver() removes some boilerplate and makes the code
simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/phy/spi_ks8995.c
index d11c93e..f3bea13 100644
--- a/drivers/net/phy/spi_ks8995.c
+++ b/drivers/net/phy/spi_ks8995.c
@@ -354,19 +354,7 @@ static struct spi_driver ks8995_driver = {
 	.remove	  = ks8995_remove,
 };
 
-static int __init ks8995_init(void)
-{
-	pr_info(DRV_DESC " version " DRV_VERSION "\n");
-
-	return spi_register_driver(&ks8995_driver);
-}
-module_init(ks8995_init);
-
-static void __exit ks8995_exit(void)
-{
-	spi_unregister_driver(&ks8995_driver);
-}
-module_exit(ks8995_exit);
+module_spi_driver(ks8995_driver);
 
 MODULE_DESCRIPTION(DRV_DESC);
 MODULE_VERSION(DRV_VERSION);
-- 
cgit v0.10.2


From 53edee2cfbcd869371cb720f1c00d85ba7f2566c Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Fri, 24 May 2013 00:59:47 +0000
Subject: bonding: allow xmit hash policy change while bond dev is up

Since the xmit_hash_policy pointer is always valid and not dependent on
anything, we can change it while the bond device is up and running. The
only downside would be the out of order packets but that is a small price
to pay.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index d7434e0..3d269a5 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -383,20 +383,12 @@ static ssize_t bonding_store_xmit_hash(struct device *d,
 	int new_value, ret = count;
 	struct bonding *bond = to_bond(d);
 
-	if (bond->dev->flags & IFF_UP) {
-		pr_err("%s: Interface is up. Unable to update xmit policy.\n",
-		       bond->dev->name);
-		ret = -EPERM;
-		goto out;
-	}
-
 	new_value = bond_parse_parm(buf, xmit_hashtype_tbl);
 	if (new_value < 0)  {
 		pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n",
 		       bond->dev->name,
 		       (int)strlen(buf) - 1, buf);
 		ret = -EINVAL;
-		goto out;
 	} else {
 		bond->params.xmit_policy = new_value;
 		bond_set_mode_ops(bond, bond->params.mode);
@@ -404,7 +396,7 @@ static ssize_t bonding_store_xmit_hash(struct device *d,
 			bond->dev->name,
 			xmit_hashtype_tbl[new_value].modename, new_value);
 	}
-out:
+
 	return ret;
 }
 static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR,
-- 
cgit v0.10.2


From 3dd17edea018bf37ca1c33685ca0256270ccdb2c Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Fri, 24 May 2013 07:05:59 +0000
Subject: doc:networking: Fix typo in documentation/networking

Correct spelling typo

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/ifenslave.c b/Documentation/networking/ifenslave.c
index ac5debb..9f6a8ff 100644
--- a/Documentation/networking/ifenslave.c
+++ b/Documentation/networking/ifenslave.c
@@ -501,7 +501,7 @@ out:
 
 static short mif_flags;
 
-/* Get the inteface configuration from the kernel. */
+/* Get the interface configuration from the kernel. */
 static int if_getconfig(char *ifname)
 {
 	struct ifreq ifr;
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index f98ca63..398d0fb 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -183,7 +183,7 @@ tcp_early_retrans - INTEGER
 	for triggering fast retransmit when the amount of outstanding data is
 	small and when no previously unsent data can be transmitted (such
 	that limited transmit could be used). Also controls the use of
-	Tail loss probe (TLP) that converts RTOs occuring due to tail
+	Tail loss probe (TLP) that converts RTOs occurring due to tail
 	losses into fast recovery (draft-dukkipati-tcpm-tcp-loss-probe-01).
 	Possible values:
 		0 disables ER
diff --git a/Documentation/networking/netlink_mmap.txt b/Documentation/networking/netlink_mmap.txt
index 1c2dab4..e6088ba 100644
--- a/Documentation/networking/netlink_mmap.txt
+++ b/Documentation/networking/netlink_mmap.txt
@@ -54,7 +54,7 @@ it will use an allocated socket buffer as usual and the contents will be
  copied to the ring on transmission, nullifying most of the performance gains.
 Dumps of kernel databases automatically support memory mapped I/O.
 
-Conversion of the transmit path involves changing message contruction to
+Conversion of the transmit path involves changing message construction to
 use memory from the TX ring instead of (usually) a buffer declared on the
 stack and setting up the frame header approriately. Optionally poll() can
 be used to wait for free frames in the TX ring.
@@ -65,8 +65,8 @@ Structured and definitions for using memory mapped I/O are contained in
 RX and TX rings
 ----------------
 
-Each ring contains a number of continous memory blocks, containing frames of
-fixed size dependant on the parameters used for ring setup.
+Each ring contains a number of continuous memory blocks, containing frames of
+fixed size dependent on the parameters used for ring setup.
 
 Ring:	[ block 0 ]
 		[ frame 0 ]
@@ -80,7 +80,7 @@ Ring:	[ block 0 ]
 		[ frame 2 * n + 1 ]
 
 The blocks are only visible to the kernel, from the point of view of user-space
-the ring just contains the frames in a continous memory zone.
+the ring just contains the frames in a continuous memory zone.
 
 The ring parameters used for setting up the ring are defined as follows:
 
@@ -91,7 +91,7 @@ struct nl_mmap_req {
 	unsigned int	nm_frame_nr;
 };
 
-Frames are grouped into blocks, where each block is a continous region of memory
+Frames are grouped into blocks, where each block is a continuous region of memory
 and holds nm_block_size / nm_frame_size frames. The total number of frames in
 the ring is nm_frame_nr. The following invariants hold:
 
@@ -113,8 +113,8 @@ Some parameters are constrained, specifically:
 
 - nm_frame_nr must equal the actual number of frames as specified above.
 
-When the kernel can't allocate phsyically continous memory for a ring block,
-it will fall back to use physically discontinous memory. This might affect
+When the kernel can't allocate phsyically continuous memory for a ring block,
+it will fall back to use physically discontinuous memory. This might affect
 performance negatively, in order to avoid this the nm_frame_size parameter
 should be chosen to be as small as possible for the required frame size and
 the number of blocks should be increased instead.
-- 
cgit v0.10.2


From b1098bbe1b24d5d90cff92fbd716d2ef4bed2cff Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Mon, 27 May 2013 15:49:16 +0000
Subject: bonding: remove ifenslave.c from kernel source

As Stephen proposed:
Since bonding supports configuration via iproute (netlink) and sysfs, I think
it is time to purge the old ifenslave code out of Documentation/networking
and update the documentation.

Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/.gitignore b/Documentation/networking/.gitignore
index 286a568..e69de29 100644
--- a/Documentation/networking/.gitignore
+++ b/Documentation/networking/.gitignore
@@ -1 +0,0 @@
-ifenslave
diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX
index 258d9b9..32dfbd9 100644
--- a/Documentation/networking/00-INDEX
+++ b/Documentation/networking/00-INDEX
@@ -88,8 +88,6 @@ gianfar.txt
 	- Gianfar Ethernet Driver.
 ieee802154.txt
 	- Linux IEEE 802.15.4 implementation, API and drivers
-ifenslave.c
-	- Configure network interfaces for parallel routing (bonding).
 igb.txt
 	- README for the Intel Gigabit Ethernet Driver (igb).
 igbvf.txt
diff --git a/Documentation/networking/Makefile b/Documentation/networking/Makefile
index 24c308d..0aa1ac9 100644
--- a/Documentation/networking/Makefile
+++ b/Documentation/networking/Makefile
@@ -1,11 +1,6 @@
 # kbuild trick to avoid linker error. Can be omitted if a module is built.
 obj- := dummy.o
 
-# List of programs to build
-hostprogs-y := ifenslave
-
-HOSTCFLAGS_ifenslave.o += -I$(objtree)/usr/include
-
 # Tell kbuild to always build the programs
 always := $(hostprogs-y)
 
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 10a015c..e7454fc 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -104,8 +104,7 @@ Table of Contents
 ==============================
 
 	Most popular distro kernels ship with the bonding driver
-already available as a module and the ifenslave user level control
-program installed and ready for use. If your distro does not, or you
+already available as a module. If your distro does not, or you
 have need to compile bonding from source (e.g., configuring and
 installing a mainline kernel from kernel.org), you'll need to perform
 the following steps:
@@ -124,46 +123,13 @@ device support" section.  It is recommended that you configure the
 driver as module since it is currently the only way to pass parameters
 to the driver or configure more than one bonding device.
 
-	Build and install the new kernel and modules, then continue
-below to install ifenslave.
+	Build and install the new kernel and modules.
 
-1.2 Install ifenslave Control Utility
+1.2 Bonding Control Utility
 -------------------------------------
 
-	The ifenslave user level control program is included in the
-kernel source tree, in the file Documentation/networking/ifenslave.c.
-It is generally recommended that you use the ifenslave that
-corresponds to the kernel that you are using (either from the same
-source tree or supplied with the distro), however, ifenslave
-executables from older kernels should function (but features newer
-than the ifenslave release are not supported).  Running an ifenslave
-that is newer than the kernel is not supported, and may or may not
-work.
-
-	To install ifenslave, do the following:
-
-# gcc -Wall -O -I/usr/src/linux/include ifenslave.c -o ifenslave
-# cp ifenslave /sbin/ifenslave
-
-	If your kernel source is not in "/usr/src/linux," then replace
-"/usr/src/linux/include" in the above with the location of your kernel
-source include directory.
-
-	You may wish to back up any existing /sbin/ifenslave, or, for
-testing or informal use, tag the ifenslave to the kernel version
-(e.g., name the ifenslave executable /sbin/ifenslave-2.6.10).
-
-IMPORTANT NOTE:
-
-	If you omit the "-I" or specify an incorrect directory, you
-may end up with an ifenslave that is incompatible with the kernel
-you're trying to build it for.  Some distros (e.g., Red Hat from 7.1
-onwards) do not have /usr/include/linux symbolically linked to the
-default kernel source include directory.
-
-SECOND IMPORTANT NOTE:
-	If you plan to configure bonding using sysfs or using the
-/etc/network/interfaces file, you do not need to use ifenslave.
+	 It is recommended to configure bonding via iproute2 (netlink)
+or sysfs, the old ifenslave control utility is obsolete.
 
 2. Bonding Driver Options
 =========================
@@ -851,7 +817,7 @@ resend_igmp
 ==============================
 
 	You can configure bonding using either your distro's network
-initialization scripts, or manually using either ifenslave or the
+initialization scripts, or manually using either iproute2 or the
 sysfs interface.  Distros generally use one of three packages for the
 network initialization scripts: initscripts, sysconfig or interfaces.
 Recent versions of these packages have support for bonding, while older
@@ -1160,7 +1126,7 @@ not support this method for specifying multiple bonding interfaces; for
 those instances, see the "Configuring Multiple Bonds Manually" section,
 below.
 
-3.3 Configuring Bonding Manually with Ifenslave
+3.3 Configuring Bonding Manually with iproute2
 -----------------------------------------------
 
 	This section applies to distros whose network initialization
@@ -1171,7 +1137,7 @@ version 8.
 	The general method for these systems is to place the bonding
 module parameters into a config file in /etc/modprobe.d/ (as
 appropriate for the installed distro), then add modprobe and/or
-ifenslave commands to the system's global init script.  The name of
+`ip link` commands to the system's global init script.  The name of
 the global init script differs; for sysconfig, it is
 /etc/init.d/boot.local and for initscripts it is /etc/rc.d/rc.local.
 
@@ -1183,8 +1149,8 @@ reboots, edit the appropriate file (/etc/init.d/boot.local or
 modprobe bonding mode=balance-alb miimon=100
 modprobe e100
 ifconfig bond0 192.168.1.1 netmask 255.255.255.0 up
-ifenslave bond0 eth0
-ifenslave bond0 eth1
+ip link set eth0 master bond0
+ip link set eth1 master bond0
 
 	Replace the example bonding module parameters and bond0
 network configuration (IP address, netmask, etc) with the appropriate
diff --git a/Documentation/networking/ifenslave.c b/Documentation/networking/ifenslave.c
deleted file mode 100644
index 9f6a8ff..0000000
--- a/Documentation/networking/ifenslave.c
+++ /dev/null
@@ -1,1105 +0,0 @@
-/* Mode: C;
- * ifenslave.c: Configure network interfaces for parallel routing.
- *
- *	This program controls the Linux implementation of running multiple
- *	network interfaces in parallel.
- *
- * Author:	Donald Becker <becker@cesdis.gsfc.nasa.gov>
- *		Copyright 1994-1996 Donald Becker
- *
- *		This program is free software; you can redistribute it
- *		and/or modify it under the terms of the GNU General Public
- *		License as published by the Free Software Foundation.
- *
- *	The author may be reached as becker@CESDIS.gsfc.nasa.gov, or C/O
- *	Center of Excellence in Space Data and Information Sciences
- *	   Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771
- *
- *  Changes :
- *    - 2000/10/02 Willy Tarreau <willy at meta-x.org> :
- *       - few fixes. Master's MAC address is now correctly taken from
- *         the first device when not previously set ;
- *       - detach support : call BOND_RELEASE to detach an enslaved interface.
- *       - give a mini-howto from command-line help : # ifenslave -h
- *
- *    - 2001/02/16 Chad N. Tindel <ctindel at ieee dot org> :
- *       - Master is now brought down before setting the MAC address.  In
- *         the 2.4 kernel you can't change the MAC address while the device is
- *         up because you get EBUSY.
- *
- *    - 2001/09/13 Takao Indoh <indou dot takao at jp dot fujitsu dot com>
- *       - Added the ability to change the active interface on a mode 1 bond
- *         at runtime.
- *
- *    - 2001/10/23 Chad N. Tindel <ctindel at ieee dot org> :
- *       - No longer set the MAC address of the master.  The bond device will
- *         take care of this itself
- *       - Try the SIOC*** versions of the bonding ioctls before using the
- *         old versions
- *    - 2002/02/18 Erik Habbinga <erik_habbinga @ hp dot com> :
- *       - ifr2.ifr_flags was not initialized in the hwaddr_notset case,
- *         SIOCGIFFLAGS now called before hwaddr_notset test
- *
- *    - 2002/10/31 Tony Cureington <tony.cureington * hp_com> :
- *       - If the master does not have a hardware address when the first slave
- *         is enslaved, the master is assigned the hardware address of that
- *         slave - there is a comment in bonding.c stating "ifenslave takes
- *         care of this now." This corrects the problem of slaves having
- *         different hardware addresses in active-backup mode when
- *         multiple interfaces are specified on a single ifenslave command
- *         (ifenslave bond0 eth0 eth1).
- *
- *    - 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
- *                   Shmulik Hen <shmulik.hen at intel dot com>
- *       - Moved setting the slave's mac address and openning it, from
- *         the application to the driver. This enables support of modes
- *         that need to use the unique mac address of each slave.
- *         The driver also takes care of closing the slave and restoring its
- *         original mac address upon release.
- *         In addition, block possibility of enslaving before the master is up.
- *         This prevents putting the system in an undefined state.
- *
- *    - 2003/05/01 - Amir Noam <amir.noam at intel dot com>
- *       - Added ABI version control to restore compatibility between
- *         new/old ifenslave and new/old bonding.
- *       - Prevent adding an adapter that is already a slave.
- *         Fixes the problem of stalling the transmission and leaving
- *         the slave in a down state.
- *
- *    - 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com>
- *       - Prevent enslaving if the bond device is down.
- *         Fixes the problem of leaving the system in unstable state and
- *         halting when trying to remove the module.
- *       - Close socket on all abnormal exists.
- *       - Add versioning scheme that follows that of the bonding driver.
- *         current version is 1.0.0 as a base line.
- *
- *    - 2003/05/22 - Jay Vosburgh <fubar at us dot ibm dot com>
- *	 - ifenslave -c was broken; it's now fixed
- *	 - Fixed problem with routes vanishing from master during enslave
- *	   processing.
- *
- *    - 2003/05/27 - Amir Noam <amir.noam at intel dot com>
- *	 - Fix backward compatibility issues:
- *	   For drivers not using ABI versions, slave was set down while
- *	   it should be left up before enslaving.
- *	   Also, master was not set down and the default set_mac_address()
- *	   would fail and generate an error message in the system log.
- * 	 - For opt_c: slave should not be set to the master's setting
- *	   while it is running. It was already set during enslave. To
- *	   simplify things, it is now handled separately.
- *
- *    - 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com>
- *	 - Code cleanup and style changes
- *	   set version to 1.1.0
- */
-
-#define APP_VERSION	"1.1.0"
-#define APP_RELDATE	"December 1, 2003"
-#define APP_NAME	"ifenslave"
-
-static char *version =
-APP_NAME ".c:v" APP_VERSION " (" APP_RELDATE ")\n"
-"o Donald Becker (becker@cesdis.gsfc.nasa.gov).\n"
-"o Detach support added on 2000/10/02 by Willy Tarreau (willy at meta-x.org).\n"
-"o 2.4 kernel support added on 2001/02/16 by Chad N. Tindel\n"
-"  (ctindel at ieee dot org).\n";
-
-static const char *usage_msg =
-"Usage: ifenslave [-f] <master-if> <slave-if> [<slave-if>...]\n"
-"       ifenslave -d   <master-if> <slave-if> [<slave-if>...]\n"
-"       ifenslave -c   <master-if> <slave-if>\n"
-"       ifenslave --help\n";
-
-static const char *help_msg =
-"\n"
-"       To create a bond device, simply follow these three steps :\n"
-"       - ensure that the required drivers are properly loaded :\n"
-"         # modprobe bonding ; modprobe <3c59x|eepro100|pcnet32|tulip|...>\n"
-"       - assign an IP address to the bond device :\n"
-"         # ifconfig bond0 <addr> netmask <mask> broadcast <bcast>\n"
-"       - attach all the interfaces you need to the bond device :\n"
-"         # ifenslave [{-f|--force}] bond0 eth0 [eth1 [eth2]...]\n"
-"         If bond0 didn't have a MAC address, it will take eth0's. Then, all\n"
-"         interfaces attached AFTER this assignment will get the same MAC addr.\n"
-"         (except for ALB/TLB modes)\n"
-"\n"
-"       To set the bond device down and automatically release all the slaves :\n"
-"         # ifconfig bond0 down\n"
-"\n"
-"       To detach a dead interface without setting the bond device down :\n"
-"         # ifenslave {-d|--detach} bond0 eth0 [eth1 [eth2]...]\n"
-"\n"
-"       To change active slave :\n"
-"         # ifenslave {-c|--change-active} bond0 eth0\n"
-"\n"
-"       To show master interface info\n"
-"         # ifenslave bond0\n"
-"\n"
-"       To show all interfaces info\n"
-"       # ifenslave {-a|--all-interfaces}\n"
-"\n"
-"       To be more verbose\n"
-"       # ifenslave {-v|--verbose} ...\n"
-"\n"
-"       # ifenslave {-u|--usage}   Show usage\n"
-"       # ifenslave {-V|--version} Show version\n"
-"       # ifenslave {-h|--help}    This message\n"
-"\n";
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-#include <linux/if.h>
-#include <net/if_arp.h>
-#include <linux/if_ether.h>
-#include <linux/if_bonding.h>
-#include <linux/sockios.h>
-
-typedef unsigned long long u64;	/* hack, so we may include kernel's ethtool.h */
-typedef __uint32_t u32;		/* ditto */
-typedef __uint16_t u16;		/* ditto */
-typedef __uint8_t u8;		/* ditto */
-#include <linux/ethtool.h>
-
-struct option longopts[] = {
-	/* { name  has_arg  *flag  val } */
-	{"all-interfaces",	0, 0, 'a'},	/* Show all interfaces. */
-	{"change-active",	0, 0, 'c'},	/* Change the active slave.  */
-	{"detach",		0, 0, 'd'},	/* Detach a slave interface. */
-	{"force",		0, 0, 'f'},	/* Force the operation. */
-	{"help",		0, 0, 'h'},	/* Give help */
-	{"usage",		0, 0, 'u'},	/* Give usage */
-	{"verbose",		0, 0, 'v'},	/* Report each action taken. */
-	{"version",		0, 0, 'V'},	/* Emit version information. */
-	{ 0, 0, 0, 0}
-};
-
-/* Command-line flags. */
-unsigned int
-opt_a = 0,	/* Show-all-interfaces flag. */
-opt_c = 0,	/* Change-active-slave flag. */
-opt_d = 0,	/* Detach a slave interface. */
-opt_f = 0,	/* Force the operation. */
-opt_h = 0,	/* Help */
-opt_u = 0,	/* Usage */
-opt_v = 0,	/* Verbose flag. */
-opt_V = 0;	/* Version */
-
-int skfd = -1;		/* AF_INET socket for ioctl() calls.*/
-int abi_ver = 0;	/* userland - kernel ABI version */
-int hwaddr_set = 0;	/* Master's hwaddr is set */
-int saved_errno;
-
-struct ifreq master_mtu, master_flags, master_hwaddr;
-struct ifreq slave_mtu, slave_flags, slave_hwaddr;
-
-struct dev_ifr {
-	struct ifreq *req_ifr;
-	char *req_name;
-	int req_type;
-};
-
-struct dev_ifr master_ifra[] = {
-	{&master_mtu,     "SIOCGIFMTU",     SIOCGIFMTU},
-	{&master_flags,   "SIOCGIFFLAGS",   SIOCGIFFLAGS},
-	{&master_hwaddr,  "SIOCGIFHWADDR",  SIOCGIFHWADDR},
-	{NULL, "", 0}
-};
-
-struct dev_ifr slave_ifra[] = {
-	{&slave_mtu,     "SIOCGIFMTU",     SIOCGIFMTU},
-	{&slave_flags,   "SIOCGIFFLAGS",   SIOCGIFFLAGS},
-	{&slave_hwaddr,  "SIOCGIFHWADDR",  SIOCGIFHWADDR},
-	{NULL, "", 0}
-};
-
-static void if_print(char *ifname);
-static int get_drv_info(char *master_ifname);
-static int get_if_settings(char *ifname, struct dev_ifr ifra[]);
-static int get_slave_flags(char *slave_ifname);
-static int set_master_hwaddr(char *master_ifname, struct sockaddr *hwaddr);
-static int set_slave_hwaddr(char *slave_ifname, struct sockaddr *hwaddr);
-static int set_slave_mtu(char *slave_ifname, int mtu);
-static int set_if_flags(char *ifname, short flags);
-static int set_if_up(char *ifname, short flags);
-static int set_if_down(char *ifname, short flags);
-static int clear_if_addr(char *ifname);
-static int set_if_addr(char *master_ifname, char *slave_ifname);
-static int change_active(char *master_ifname, char *slave_ifname);
-static int enslave(char *master_ifname, char *slave_ifname);
-static int release(char *master_ifname, char *slave_ifname);
-#define v_print(fmt, args...)	\
-	if (opt_v)		\
-		fprintf(stderr, fmt, ## args )
-
-int main(int argc, char *argv[])
-{
-	char **spp, *master_ifname, *slave_ifname;
-	int c, i, rv;
-	int res = 0;
-	int exclusive = 0;
-
-	while ((c = getopt_long(argc, argv, "acdfhuvV", longopts, 0)) != EOF) {
-		switch (c) {
-		case 'a': opt_a++; exclusive++; break;
-		case 'c': opt_c++; exclusive++; break;
-		case 'd': opt_d++; exclusive++; break;
-		case 'f': opt_f++; exclusive++; break;
-		case 'h': opt_h++; exclusive++; break;
-		case 'u': opt_u++; exclusive++; break;
-		case 'v': opt_v++; break;
-		case 'V': opt_V++; exclusive++; break;
-
-		case '?':
-			fprintf(stderr, "%s", usage_msg);
-			res = 2;
-			goto out;
-		}
-	}
-
-	/* options check */
-	if (exclusive > 1) {
-		fprintf(stderr, "%s", usage_msg);
-		res = 2;
-		goto out;
-	}
-
-	if (opt_v || opt_V) {
-		printf("%s", version);
-		if (opt_V) {
-			res = 0;
-			goto out;
-		}
-	}
-
-	if (opt_u) {
-		printf("%s", usage_msg);
-		res = 0;
-		goto out;
-	}
-
-	if (opt_h) {
-		printf("%s", usage_msg);
-		printf("%s", help_msg);
-		res = 0;
-		goto out;
-	}
-
-	/* Open a basic socket */
-	if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
-		perror("socket");
-		res = 1;
-		goto out;
-	}
-
-	if (opt_a) {
-		if (optind == argc) {
-			/* No remaining args */
-			/* show all interfaces */
-			if_print((char *)NULL);
-			goto out;
-		} else {
-			/* Just show usage */
-			fprintf(stderr, "%s", usage_msg);
-			res = 2;
-			goto out;
-		}
-	}
-
-	/* Copy the interface name */
-	spp = argv + optind;
-	master_ifname = *spp++;
-
-	if (master_ifname == NULL) {
-		fprintf(stderr, "%s", usage_msg);
-		res = 2;
-		goto out;
-	}
-
-	/* exchange abi version with bonding module */
-	res = get_drv_info(master_ifname);
-	if (res) {
-		fprintf(stderr,
-			"Master '%s': Error: handshake with driver failed. "
-			"Aborting\n",
-			master_ifname);
-		goto out;
-	}
-
-	slave_ifname = *spp++;
-
-	if (slave_ifname == NULL) {
-		if (opt_d || opt_c) {
-			fprintf(stderr, "%s", usage_msg);
-			res = 2;
-			goto out;
-		}
-
-		/* A single arg means show the
-		 * configuration for this interface
-		 */
-		if_print(master_ifname);
-		goto out;
-	}
-
-	res = get_if_settings(master_ifname, master_ifra);
-	if (res) {
-		/* Probably a good reason not to go on */
-		fprintf(stderr,
-			"Master '%s': Error: get settings failed: %s. "
-			"Aborting\n",
-			master_ifname, strerror(res));
-		goto out;
-	}
-
-	/* check if master is indeed a master;
-	 * if not then fail any operation
-	 */
-	if (!(master_flags.ifr_flags & IFF_MASTER)) {
-		fprintf(stderr,
-			"Illegal operation; the specified interface '%s' "
-			"is not a master. Aborting\n",
-			master_ifname);
-		res = 1;
-		goto out;
-	}
-
-	/* check if master is up; if not then fail any operation */
-	if (!(master_flags.ifr_flags & IFF_UP)) {
-		fprintf(stderr,
-			"Illegal operation; the specified master interface "
-			"'%s' is not up.\n",
-			master_ifname);
-		res = 1;
-		goto out;
-	}
-
-	/* Only for enslaving */
-	if (!opt_c && !opt_d) {
-		sa_family_t master_family = master_hwaddr.ifr_hwaddr.sa_family;
-		unsigned char *hwaddr =
-			(unsigned char *)master_hwaddr.ifr_hwaddr.sa_data;
-
-		/* The family '1' is ARPHRD_ETHER for ethernet. */
-		if (master_family != 1 && !opt_f) {
-			fprintf(stderr,
-				"Illegal operation: The specified master "
-				"interface '%s' is not ethernet-like.\n "
-				"This program is designed to work with "
-				"ethernet-like network interfaces.\n "
-				"Use the '-f' option to force the "
-				"operation.\n",
-				master_ifname);
-			res = 1;
-			goto out;
-		}
-
-		/* Check master's hw addr */
-		for (i = 0; i < 6; i++) {
-			if (hwaddr[i] != 0) {
-				hwaddr_set = 1;
-				break;
-			}
-		}
-
-		if (hwaddr_set) {
-			v_print("current hardware address of master '%s' "
-				"is %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
-				"type %d\n",
-				master_ifname,
-				hwaddr[0], hwaddr[1],
-				hwaddr[2], hwaddr[3],
-				hwaddr[4], hwaddr[5],
-				master_family);
-		}
-	}
-
-	/* Accepts only one slave */
-	if (opt_c) {
-		/* change active slave */
-		res = get_slave_flags(slave_ifname);
-		if (res) {
-			fprintf(stderr,
-				"Slave '%s': Error: get flags failed. "
-				"Aborting\n",
-				slave_ifname);
-			goto out;
-		}
-		res = change_active(master_ifname, slave_ifname);
-		if (res) {
-			fprintf(stderr,
-				"Master '%s', Slave '%s': Error: "
-				"Change active failed\n",
-				master_ifname, slave_ifname);
-		}
-	} else {
-		/* Accept multiple slaves */
-		do {
-			if (opt_d) {
-				/* detach a slave interface from the master */
-				rv = get_slave_flags(slave_ifname);
-				if (rv) {
-					/* Can't work with this slave. */
-					/* remember the error and skip it*/
-					fprintf(stderr,
-						"Slave '%s': Error: get flags "
-						"failed. Skipping\n",
-						slave_ifname);
-					res = rv;
-					continue;
-				}
-				rv = release(master_ifname, slave_ifname);
-				if (rv) {
-					fprintf(stderr,
-						"Master '%s', Slave '%s': Error: "
-						"Release failed\n",
-						master_ifname, slave_ifname);
-					res = rv;
-				}
-			} else {
-				/* attach a slave interface to the master */
-				rv = get_if_settings(slave_ifname, slave_ifra);
-				if (rv) {
-					/* Can't work with this slave. */
-					/* remember the error and skip it*/
-					fprintf(stderr,
-						"Slave '%s': Error: get "
-						"settings failed: %s. "
-						"Skipping\n",
-						slave_ifname, strerror(rv));
-					res = rv;
-					continue;
-				}
-				rv = enslave(master_ifname, slave_ifname);
-				if (rv) {
-					fprintf(stderr,
-						"Master '%s', Slave '%s': Error: "
-						"Enslave failed\n",
-						master_ifname, slave_ifname);
-					res = rv;
-				}
-			}
-		} while ((slave_ifname = *spp++) != NULL);
-	}
-
-out:
-	if (skfd >= 0) {
-		close(skfd);
-	}
-
-	return res;
-}
-
-static short mif_flags;
-
-/* Get the interface configuration from the kernel. */
-static int if_getconfig(char *ifname)
-{
-	struct ifreq ifr;
-	int metric, mtu;	/* Parameters of the master interface. */
-	struct sockaddr dstaddr, broadaddr, netmask;
-	unsigned char *hwaddr;
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
-		return -1;
-	mif_flags = ifr.ifr_flags;
-	printf("The result of SIOCGIFFLAGS on %s is %x.\n",
-	       ifname, ifr.ifr_flags);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFADDR, &ifr) < 0)
-		return -1;
-	printf("The result of SIOCGIFADDR is %2.2x.%2.2x.%2.2x.%2.2x.\n",
-	       ifr.ifr_addr.sa_data[0], ifr.ifr_addr.sa_data[1],
-	       ifr.ifr_addr.sa_data[2], ifr.ifr_addr.sa_data[3]);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
-		return -1;
-
-	/* Gotta convert from 'char' to unsigned for printf(). */
-	hwaddr = (unsigned char *)ifr.ifr_hwaddr.sa_data;
-	printf("The result of SIOCGIFHWADDR is type %d  "
-	       "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x.\n",
-	       ifr.ifr_hwaddr.sa_family, hwaddr[0], hwaddr[1],
-	       hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5]);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0) {
-		metric = 0;
-	} else
-		metric = ifr.ifr_metric;
-	printf("The result of SIOCGIFMETRIC is %d\n", metric);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
-		mtu = 0;
-	else
-		mtu = ifr.ifr_mtu;
-	printf("The result of SIOCGIFMTU is %d\n", mtu);
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFDSTADDR, &ifr) < 0) {
-		memset(&dstaddr, 0, sizeof(struct sockaddr));
-	} else
-		dstaddr = ifr.ifr_dstaddr;
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFBRDADDR, &ifr) < 0) {
-		memset(&broadaddr, 0, sizeof(struct sockaddr));
-	} else
-		broadaddr = ifr.ifr_broadaddr;
-
-	strcpy(ifr.ifr_name, ifname);
-	if (ioctl(skfd, SIOCGIFNETMASK, &ifr) < 0) {
-		memset(&netmask, 0, sizeof(struct sockaddr));
-	} else
-		netmask = ifr.ifr_netmask;
-
-	return 0;
-}
-
-static void if_print(char *ifname)
-{
-	char buff[1024];
-	struct ifconf ifc;
-	struct ifreq *ifr;
-	int i;
-
-	if (ifname == (char *)NULL) {
-		ifc.ifc_len = sizeof(buff);
-		ifc.ifc_buf = buff;
-		if (ioctl(skfd, SIOCGIFCONF, &ifc) < 0) {
-			perror("SIOCGIFCONF failed");
-			return;
-		}
-
-		ifr = ifc.ifc_req;
-		for (i = ifc.ifc_len / sizeof(struct ifreq); --i >= 0; ifr++) {
-			if (if_getconfig(ifr->ifr_name) < 0) {
-				fprintf(stderr,
-					"%s: unknown interface.\n",
-					ifr->ifr_name);
-				continue;
-			}
-
-			if (((mif_flags & IFF_UP) == 0) && !opt_a) continue;
-			/*ife_print(&ife);*/
-		}
-	} else {
-		if (if_getconfig(ifname) < 0) {
-			fprintf(stderr,
-				"%s: unknown interface.\n", ifname);
-		}
-	}
-}
-
-static int get_drv_info(char *master_ifname)
-{
-	struct ifreq ifr;
-	struct ethtool_drvinfo info;
-	char *endptr;
-
-	memset(&ifr, 0, sizeof(ifr));
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	ifr.ifr_data = (caddr_t)&info;
-
-	info.cmd = ETHTOOL_GDRVINFO;
-	strncpy(info.driver, "ifenslave", 32);
-	snprintf(info.fw_version, 32, "%d", BOND_ABI_VERSION);
-
-	if (ioctl(skfd, SIOCETHTOOL, &ifr) < 0) {
-		if (errno == EOPNOTSUPP) {
-			goto out;
-		}
-
-		saved_errno = errno;
-		v_print("Master '%s': Error: get bonding info failed %s\n",
-			master_ifname, strerror(saved_errno));
-		return 1;
-	}
-
-	abi_ver = strtoul(info.fw_version, &endptr, 0);
-	if (*endptr) {
-                v_print("Master '%s': Error: got invalid string as an ABI "
-			"version from the bonding module\n",
-			master_ifname);
-		return 1;
-	}
-
-out:
-	v_print("ABI ver is %d\n", abi_ver);
-
-	return 0;
-}
-
-static int change_active(char *master_ifname, char *slave_ifname)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	if (!(slave_flags.ifr_flags & IFF_SLAVE)) {
-		fprintf(stderr,
-			"Illegal operation: The specified slave interface "
-			"'%s' is not a slave\n",
-			slave_ifname);
-		return 1;
-	}
-
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ);
-	if ((ioctl(skfd, SIOCBONDCHANGEACTIVE, &ifr) < 0) &&
-	    (ioctl(skfd, BOND_CHANGE_ACTIVE_OLD, &ifr) < 0)) {
-		saved_errno = errno;
-		v_print("Master '%s': Error: SIOCBONDCHANGEACTIVE failed: "
-			"%s\n",
-			master_ifname, strerror(saved_errno));
-		res = 1;
-	}
-
-	return res;
-}
-
-static int enslave(char *master_ifname, char *slave_ifname)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	if (slave_flags.ifr_flags & IFF_SLAVE) {
-		fprintf(stderr,
-			"Illegal operation: The specified slave interface "
-			"'%s' is already a slave\n",
-			slave_ifname);
-		return 1;
-	}
-
-	res = set_if_down(slave_ifname, slave_flags.ifr_flags);
-	if (res) {
-		fprintf(stderr,
-			"Slave '%s': Error: bring interface down failed\n",
-			slave_ifname);
-		return res;
-	}
-
-	if (abi_ver < 2) {
-		/* Older bonding versions would panic if the slave has no IP
-		 * address, so get the IP setting from the master.
-		 */
-		set_if_addr(master_ifname, slave_ifname);
-	} else {
-		res = clear_if_addr(slave_ifname);
-		if (res) {
-			fprintf(stderr,
-				"Slave '%s': Error: clear address failed\n",
-				slave_ifname);
-			return res;
-		}
-	}
-
-	if (master_mtu.ifr_mtu != slave_mtu.ifr_mtu) {
-		res = set_slave_mtu(slave_ifname, master_mtu.ifr_mtu);
-		if (res) {
-			fprintf(stderr,
-				"Slave '%s': Error: set MTU failed\n",
-				slave_ifname);
-			return res;
-		}
-	}
-
-	if (hwaddr_set) {
-		/* Master already has an hwaddr
-		 * so set it's hwaddr to the slave
-		 */
-		if (abi_ver < 1) {
-			/* The driver is using an old ABI, so
-			 * the application sets the slave's
-			 * hwaddr
-			 */
-			res = set_slave_hwaddr(slave_ifname,
-					       &(master_hwaddr.ifr_hwaddr));
-			if (res) {
-				fprintf(stderr,
-					"Slave '%s': Error: set hw address "
-					"failed\n",
-					slave_ifname);
-				goto undo_mtu;
-			}
-
-			/* For old ABI the application needs to bring the
-			 * slave back up
-			 */
-			res = set_if_up(slave_ifname, slave_flags.ifr_flags);
-			if (res) {
-				fprintf(stderr,
-					"Slave '%s': Error: bring interface "
-					"down failed\n",
-					slave_ifname);
-				goto undo_slave_mac;
-			}
-		}
-		/* The driver is using a new ABI,
-		 * so the driver takes care of setting
-		 * the slave's hwaddr and bringing
-		 * it up again
-		 */
-	} else {
-		/* No hwaddr for master yet, so
-		 * set the slave's hwaddr to it
-		 */
-		if (abi_ver < 1) {
-			/* For old ABI, the master needs to be
-			 * down before setting its hwaddr
-			 */
-			res = set_if_down(master_ifname, master_flags.ifr_flags);
-			if (res) {
-				fprintf(stderr,
-					"Master '%s': Error: bring interface "
-					"down failed\n",
-					master_ifname);
-				goto undo_mtu;
-			}
-		}
-
-		res = set_master_hwaddr(master_ifname,
-					&(slave_hwaddr.ifr_hwaddr));
-		if (res) {
-			fprintf(stderr,
-				"Master '%s': Error: set hw address "
-				"failed\n",
-				master_ifname);
-			goto undo_mtu;
-		}
-
-		if (abi_ver < 1) {
-			/* For old ABI, bring the master
-			 * back up
-			 */
-			res = set_if_up(master_ifname, master_flags.ifr_flags);
-			if (res) {
-				fprintf(stderr,
-					"Master '%s': Error: bring interface "
-					"up failed\n",
-					master_ifname);
-				goto undo_master_mac;
-			}
-		}
-
-		hwaddr_set = 1;
-	}
-
-	/* Do the real thing */
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ);
-	if ((ioctl(skfd, SIOCBONDENSLAVE, &ifr) < 0) &&
-	    (ioctl(skfd, BOND_ENSLAVE_OLD, &ifr) < 0)) {
-		saved_errno = errno;
-		v_print("Master '%s': Error: SIOCBONDENSLAVE failed: %s\n",
-			master_ifname, strerror(saved_errno));
-		res = 1;
-	}
-
-	if (res) {
-		goto undo_master_mac;
-	}
-
-	return 0;
-
-/* rollback (best effort) */
-undo_master_mac:
-	set_master_hwaddr(master_ifname, &(master_hwaddr.ifr_hwaddr));
-	hwaddr_set = 0;
-	goto undo_mtu;
-undo_slave_mac:
-	set_slave_hwaddr(slave_ifname, &(slave_hwaddr.ifr_hwaddr));
-undo_mtu:
-	set_slave_mtu(slave_ifname, slave_mtu.ifr_mtu);
-	return res;
-}
-
-static int release(char *master_ifname, char *slave_ifname)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	if (!(slave_flags.ifr_flags & IFF_SLAVE)) {
-		fprintf(stderr,
-			"Illegal operation: The specified slave interface "
-			"'%s' is not a slave\n",
-			slave_ifname);
-		return 1;
-	}
-
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	strncpy(ifr.ifr_slave, slave_ifname, IFNAMSIZ);
-	if ((ioctl(skfd, SIOCBONDRELEASE, &ifr) < 0) &&
-	    (ioctl(skfd, BOND_RELEASE_OLD, &ifr) < 0)) {
-		saved_errno = errno;
-		v_print("Master '%s': Error: SIOCBONDRELEASE failed: %s\n",
-			master_ifname, strerror(saved_errno));
-		return 1;
-	} else if (abi_ver < 1) {
-		/* The driver is using an old ABI, so we'll set the interface
-		 * down to avoid any conflicts due to same MAC/IP
-		 */
-		res = set_if_down(slave_ifname, slave_flags.ifr_flags);
-		if (res) {
-			fprintf(stderr,
-				"Slave '%s': Error: bring interface "
-				"down failed\n",
-				slave_ifname);
-		}
-	}
-
-	/* set to default mtu */
-	set_slave_mtu(slave_ifname, 1500);
-
-	return res;
-}
-
-static int get_if_settings(char *ifname, struct dev_ifr ifra[])
-{
-	int i;
-	int res = 0;
-
-	for (i = 0; ifra[i].req_ifr; i++) {
-		strncpy(ifra[i].req_ifr->ifr_name, ifname, IFNAMSIZ);
-		res = ioctl(skfd, ifra[i].req_type, ifra[i].req_ifr);
-		if (res < 0) {
-			saved_errno = errno;
-			v_print("Interface '%s': Error: %s failed: %s\n",
-				ifname, ifra[i].req_name,
-				strerror(saved_errno));
-
-			return saved_errno;
-		}
-	}
-
-	return 0;
-}
-
-static int get_slave_flags(char *slave_ifname)
-{
-	int res = 0;
-
-	strncpy(slave_flags.ifr_name, slave_ifname, IFNAMSIZ);
-	res = ioctl(skfd, SIOCGIFFLAGS, &slave_flags);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Slave '%s': Error: SIOCGIFFLAGS failed: %s\n",
-			slave_ifname, strerror(saved_errno));
-	} else {
-		v_print("Slave %s: flags %04X.\n",
-			slave_ifname, slave_flags.ifr_flags);
-	}
-
-	return res;
-}
-
-static int set_master_hwaddr(char *master_ifname, struct sockaddr *hwaddr)
-{
-	unsigned char *addr = (unsigned char *)hwaddr->sa_data;
-	struct ifreq ifr;
-	int res = 0;
-
-	strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-	memcpy(&(ifr.ifr_hwaddr), hwaddr, sizeof(struct sockaddr));
-	res = ioctl(skfd, SIOCSIFHWADDR, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Master '%s': Error: SIOCSIFHWADDR failed: %s\n",
-			master_ifname, strerror(saved_errno));
-		return res;
-	} else {
-		v_print("Master '%s': hardware address set to "
-			"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x.\n",
-			master_ifname, addr[0], addr[1], addr[2],
-			addr[3], addr[4], addr[5]);
-	}
-
-	return res;
-}
-
-static int set_slave_hwaddr(char *slave_ifname, struct sockaddr *hwaddr)
-{
-	unsigned char *addr = (unsigned char *)hwaddr->sa_data;
-	struct ifreq ifr;
-	int res = 0;
-
-	strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ);
-	memcpy(&(ifr.ifr_hwaddr), hwaddr, sizeof(struct sockaddr));
-	res = ioctl(skfd, SIOCSIFHWADDR, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-
-		v_print("Slave '%s': Error: SIOCSIFHWADDR failed: %s\n",
-			slave_ifname, strerror(saved_errno));
-
-		if (saved_errno == EBUSY) {
-			v_print("  The device is busy: it must be idle "
-				"before running this command.\n");
-		} else if (saved_errno == EOPNOTSUPP) {
-			v_print("  The device does not support setting "
-				"the MAC address.\n"
-				"  Your kernel likely does not support slave "
-				"devices.\n");
-		} else if (saved_errno == EINVAL) {
-			v_print("  The device's address type does not match "
-				"the master's address type.\n");
-		}
-		return res;
-	} else {
-		v_print("Slave '%s': hardware address set to "
-			"%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x.\n",
-			slave_ifname, addr[0], addr[1], addr[2],
-			addr[3], addr[4], addr[5]);
-	}
-
-	return res;
-}
-
-static int set_slave_mtu(char *slave_ifname, int mtu)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	ifr.ifr_mtu = mtu;
-	strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ);
-
-	res = ioctl(skfd, SIOCSIFMTU, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Slave '%s': Error: SIOCSIFMTU failed: %s\n",
-			slave_ifname, strerror(saved_errno));
-	} else {
-		v_print("Slave '%s': MTU set to %d.\n", slave_ifname, mtu);
-	}
-
-	return res;
-}
-
-static int set_if_flags(char *ifname, short flags)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	ifr.ifr_flags = flags;
-	strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
-
-	res = ioctl(skfd, SIOCSIFFLAGS, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Interface '%s': Error: SIOCSIFFLAGS failed: %s\n",
-			ifname, strerror(saved_errno));
-	} else {
-		v_print("Interface '%s': flags set to %04X.\n", ifname, flags);
-	}
-
-	return res;
-}
-
-static int set_if_up(char *ifname, short flags)
-{
-	return set_if_flags(ifname, flags | IFF_UP);
-}
-
-static int set_if_down(char *ifname, short flags)
-{
-	return set_if_flags(ifname, flags & ~IFF_UP);
-}
-
-static int clear_if_addr(char *ifname)
-{
-	struct ifreq ifr;
-	int res = 0;
-
-	strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
-	ifr.ifr_addr.sa_family = AF_INET;
-	memset(ifr.ifr_addr.sa_data, 0, sizeof(ifr.ifr_addr.sa_data));
-
-	res = ioctl(skfd, SIOCSIFADDR, &ifr);
-	if (res < 0) {
-		saved_errno = errno;
-		v_print("Interface '%s': Error: SIOCSIFADDR failed: %s\n",
-			ifname, strerror(saved_errno));
-	} else {
-		v_print("Interface '%s': address cleared\n", ifname);
-	}
-
-	return res;
-}
-
-static int set_if_addr(char *master_ifname, char *slave_ifname)
-{
-	struct ifreq ifr;
-	int res;
-	unsigned char *ipaddr;
-	int i;
-	struct {
-		char *req_name;
-		char *desc;
-		int g_ioctl;
-		int s_ioctl;
-	} ifra[] = {
-		{"IFADDR", "addr", SIOCGIFADDR, SIOCSIFADDR},
-		{"DSTADDR", "destination addr", SIOCGIFDSTADDR, SIOCSIFDSTADDR},
-		{"BRDADDR", "broadcast addr", SIOCGIFBRDADDR, SIOCSIFBRDADDR},
-		{"NETMASK", "netmask", SIOCGIFNETMASK, SIOCSIFNETMASK},
-		{NULL, NULL, 0, 0},
-	};
-
-	for (i = 0; ifra[i].req_name; i++) {
-		strncpy(ifr.ifr_name, master_ifname, IFNAMSIZ);
-		res = ioctl(skfd, ifra[i].g_ioctl, &ifr);
-		if (res < 0) {
-			int saved_errno = errno;
-
-			v_print("Interface '%s': Error: SIOCG%s failed: %s\n",
-				master_ifname, ifra[i].req_name,
-				strerror(saved_errno));
-
-			ifr.ifr_addr.sa_family = AF_INET;
-			memset(ifr.ifr_addr.sa_data, 0,
-			       sizeof(ifr.ifr_addr.sa_data));
-		}
-
-		strncpy(ifr.ifr_name, slave_ifname, IFNAMSIZ);
-		res = ioctl(skfd, ifra[i].s_ioctl, &ifr);
-		if (res < 0) {
-			int saved_errno = errno;
-
-			v_print("Interface '%s': Error: SIOCS%s failed: %s\n",
-				slave_ifname, ifra[i].req_name,
-				strerror(saved_errno));
-
-		}
-
-		ipaddr = (unsigned char *)ifr.ifr_addr.sa_data;
-		v_print("Interface '%s': set IP %s to %d.%d.%d.%d\n",
-			slave_ifname, ifra[i].desc,
-			ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3]);
-	}
-
-	return 0;
-}
-
-/*
- * Local variables:
- *  version-control: t
- *  kept-new-versions: 5
- *  c-indent-level: 4
- *  c-basic-offset: 4
- *  tab-width: 4
- *  compile-command: "gcc -Wall -Wstrict-prototypes -O -I/usr/src/linux/include ifenslave.c -o ifenslave"
- * End:
- */
-
-- 
cgit v0.10.2


From 351638e7deeed2ec8ce451b53d33921b3da68f83 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Tue, 28 May 2013 01:30:21 +0000
Subject: net: pass info struct via netdevice notifier

So far, only net_device * could be passed along with netdevice notifier
event. This patch provides a possibility to pass custom structure
able to provide info that event listener needs to know.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>

v2->v3: fix typo on simeth
	shortened dev_getter
	shortened notifier_info struct name
v1->v2: fix notifier_call parameter in call_netdevice_notifier()
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/ia64/hp/sim/simeth.c b/arch/ia64/hp/sim/simeth.c
index c13064e..d1b04c4 100644
--- a/arch/ia64/hp/sim/simeth.c
+++ b/arch/ia64/hp/sim/simeth.c
@@ -268,7 +268,7 @@ static __inline__ int dev_is_ethdev(struct net_device *dev)
 static int
 simeth_device_event(struct notifier_block *this,unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct simeth_local *local;
 	struct in_device *in_dev;
 	struct in_ifaddr **ifap = NULL;
diff --git a/arch/mips/txx9/generic/setup_tx4939.c b/arch/mips/txx9/generic/setup_tx4939.c
index 729a509..b7eccbd 100644
--- a/arch/mips/txx9/generic/setup_tx4939.c
+++ b/arch/mips/txx9/generic/setup_tx4939.c
@@ -331,7 +331,8 @@ static int tx4939_netdev_event(struct notifier_block *this,
 			       unsigned long event,
 			       void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+
 	if (event == NETDEV_CHANGE && netif_carrier_ok(dev)) {
 		__u64 bit = 0;
 		if (dev->irq == TXX9_IRQ_BASE + TX4939_IR_ETH(0))
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 71c2c71..34fbc2f 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3269,9 +3269,9 @@ static int cma_netdev_change(struct net_device *ndev, struct rdma_id_private *id
 }
 
 static int cma_netdev_callback(struct notifier_block *self, unsigned long event,
-			       void *ctx)
+			       void *ptr)
 {
-	struct net_device *ndev = (struct net_device *)ctx;
+	struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
 	struct cma_device *cma_dev;
 	struct rdma_id_private *id_priv;
 	int ret = NOTIFY_DONE;
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 23d7343..a188d31 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1161,7 +1161,7 @@ static void netdev_removed(struct mlx4_ib_dev *dev, int port)
 static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
 				void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct mlx4_ib_dev *ibdev;
 	struct net_device *oldnd;
 	struct mlx4_ib_iboe *iboe;
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 29b846c..f4489d6 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3277,7 +3277,7 @@ static int bond_slave_netdev_event(unsigned long event,
 static int bond_netdev_event(struct notifier_block *this,
 			     unsigned long event, void *ptr)
 {
-	struct net_device *event_dev = (struct net_device *)ptr;
+	struct net_device *event_dev = netdev_notifier_info_to_dev(ptr);
 
 	pr_debug("event_dev: %s, event: %lx\n",
 		 event_dev ? event_dev->name : "None",
diff --git a/drivers/net/can/led.c b/drivers/net/can/led.c
index f27fca6..a3d99a8 100644
--- a/drivers/net/can/led.c
+++ b/drivers/net/can/led.c
@@ -88,9 +88,9 @@ EXPORT_SYMBOL_GPL(devm_can_led_init);
 
 /* NETDEV rename notifier to rename the associated led triggers too */
 static int can_led_notifier(struct notifier_block *nb, unsigned long msg,
-			void *data)
+			    void *ptr)
 {
-	struct net_device *netdev = data;
+	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 	struct can_priv *priv = safe_candev_priv(netdev);
 	char name[CAN_LED_NAME_SZ];
 
diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index 6b0dc13..d78d4cf 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -5622,7 +5622,7 @@ static void cnic_rcv_netevent(struct cnic_local *cp, unsigned long event,
 static int cnic_netdev_event(struct notifier_block *this, unsigned long event,
 							 void *ptr)
 {
-	struct net_device *netdev = ptr;
+	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 	struct cnic_dev *dev;
 	int new_dev = 0;
 
diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c
index 171f4b3..c896079 100644
--- a/drivers/net/ethernet/marvell/skge.c
+++ b/drivers/net/ethernet/marvell/skge.c
@@ -3706,7 +3706,7 @@ static const struct file_operations skge_debug_fops = {
 static int skge_device_event(struct notifier_block *unused,
 			     unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct skge_port *skge;
 	struct dentry *d;
 
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index d175bbd..e09a8c6 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -4642,7 +4642,7 @@ static const struct file_operations sky2_debug_fops = {
 static int sky2_device_event(struct notifier_block *unused,
 			     unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct sky2_port *sky2 = netdev_priv(dev);
 
 	if (dev->netdev_ops->ndo_open != sky2_open || !sky2_debug)
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index af951f3..51e13d9 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -3311,7 +3311,7 @@ static int netxen_netdev_event(struct notifier_block *this,
 				 unsigned long event, void *ptr)
 {
 	struct netxen_adapter *adapter;
-	struct net_device *dev = (struct net_device *)ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net_device *orig_dev = dev;
 	struct net_device *slave;
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index da82f2e..6bb56d4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -3530,7 +3530,7 @@ static int qlcnic_netdev_event(struct notifier_block *this,
 				 unsigned long event, void *ptr)
 {
 	struct qlcnic_adapter *adapter;
-	struct net_device *dev = (struct net_device *)ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 recheck:
 	if (dev == NULL)
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 39e4cb3..46cc11d 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -2120,7 +2120,7 @@ static void efx_update_name(struct efx_nic *efx)
 static int efx_netdev_event(struct notifier_block *this,
 			    unsigned long event, void *ptr)
 {
-	struct net_device *net_dev = ptr;
+	struct net_device *net_dev = netdev_notifier_info_to_dev(ptr);
 
 	if (net_dev->netdev_ops == &efx_netdev_ops &&
 	    event == NETDEV_CHANGENAME)
diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c
index 02de6c8..f91bf0d 100644
--- a/drivers/net/hamradio/bpqether.c
+++ b/drivers/net/hamradio/bpqether.c
@@ -103,7 +103,7 @@ static struct packet_type bpq_packet_type __read_mostly = {
 };
 
 static struct notifier_block bpq_dev_notifier = {
-	.notifier_call =bpq_device_event,
+	.notifier_call = bpq_device_event,
 };
 
 
@@ -544,9 +544,10 @@ static void bpq_free_device(struct net_device *ndev)
 /*
  *	Handle device status changes.
  */
-static int bpq_device_event(struct notifier_block *this,unsigned long event, void *ptr)
+static int bpq_device_event(struct notifier_block *this,
+			    unsigned long event, void *ptr)
 {
-	struct net_device *dev = (struct net_device *)ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 1c502bb..edfddc5 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -921,7 +921,7 @@ static struct rtnl_link_ops macvlan_link_ops = {
 static int macvlan_device_event(struct notifier_block *unused,
 				unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct macvlan_dev *vlan, *next;
 	struct macvlan_port *port;
 	LIST_HEAD(list_kill);
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 59e9605..68efb91 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -1053,7 +1053,7 @@ EXPORT_SYMBOL_GPL(macvtap_get_socket);
 static int macvtap_device_event(struct notifier_block *unused,
 				unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct macvlan_dev *vlan;
 	struct device *classdev;
 	dev_t devt;
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 59ac143..1d1d0a1 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -653,12 +653,11 @@ static struct configfs_subsystem netconsole_subsys = {
 
 /* Handle network interface device notifications */
 static int netconsole_netdev_event(struct notifier_block *this,
-				   unsigned long event,
-				   void *ptr)
+				   unsigned long event, void *ptr)
 {
 	unsigned long flags;
 	struct netconsole_target *nt;
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	bool stopped = false;
 
 	if (!(event == NETDEV_CHANGENAME || event == NETDEV_UNREGISTER ||
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index bb07ba9..5f66e30 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -338,7 +338,7 @@ static void pppoe_flush_dev(struct net_device *dev)
 static int pppoe_device_event(struct notifier_block *this,
 			      unsigned long event, void *ptr)
 {
-	struct net_device *dev = (struct net_device *)ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	/* Only look at sockets that are using this specific device. */
 	switch (event) {
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 7c43261..9273f48 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2647,7 +2647,7 @@ static void team_port_change_check(struct team_port *port, bool linkup)
 static int team_device_event(struct notifier_block *unused,
 			     unsigned long event, void *ptr)
 {
-	struct net_device *dev = (struct net_device *) ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct team_port *port;
 
 	port = team_port_get_rtnl(dev);
diff --git a/drivers/net/wan/dlci.c b/drivers/net/wan/dlci.c
index 147614e..70ac599 100644
--- a/drivers/net/wan/dlci.c
+++ b/drivers/net/wan/dlci.c
@@ -477,7 +477,7 @@ static void dlci_setup(struct net_device *dev)
 static int dlci_dev_event(struct notifier_block *unused,
 			  unsigned long event, void *ptr)
 {
-	struct net_device *dev = (struct net_device *) ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (dev_net(dev) != &init_net)
 		return NOTIFY_DONE;
diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index a0a932c..9c33ca9 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -99,7 +99,7 @@ static inline void hdlc_proto_stop(struct net_device *dev)
 static int hdlc_device_event(struct notifier_block *this, unsigned long event,
 			     void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	hdlc_device *hdlc;
 	unsigned long flags;
 	int on;
diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c
index a73b49e..a33a46f 100644
--- a/drivers/net/wan/lapbether.c
+++ b/drivers/net/wan/lapbether.c
@@ -370,7 +370,7 @@ static int lapbeth_device_event(struct notifier_block *this,
 				unsigned long event, void *ptr)
 {
 	struct lapbethdev *lapbeth;
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (dev_net(dev) != &init_net)
 		return NOTIFY_DONE;
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 292b24f..ee721b6 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1975,7 +1975,7 @@ static int fcoe_device_notification(struct notifier_block *notifier,
 {
 	struct fcoe_ctlr_device *cdev;
 	struct fc_lport *lport = NULL;
-	struct net_device *netdev = ptr;
+	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 	struct fcoe_ctlr *ctlr;
 	struct fcoe_interface *fcoe;
 	struct fcoe_port *port;
diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c
index f3a5a53..01adbe0 100644
--- a/drivers/scsi/fcoe/fcoe_transport.c
+++ b/drivers/scsi/fcoe/fcoe_transport.c
@@ -704,7 +704,7 @@ static struct net_device *fcoe_if_to_netdev(const char *buffer)
 static int libfcoe_device_notification(struct notifier_block *notifier,
 				    ulong event, void *ptr)
 {
-	struct net_device *netdev = ptr;
+	struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 
 	switch (event) {
 	case NETDEV_UNREGISTER:
diff --git a/drivers/staging/csr/netdev.c b/drivers/staging/csr/netdev.c
index a0177d9..d49cdf84a 100644
--- a/drivers/staging/csr/netdev.c
+++ b/drivers/staging/csr/netdev.c
@@ -2891,7 +2891,7 @@ void uf_net_get_name(struct net_device *dev, char *name, int len)
  */
 static int
 uf_netdev_event(struct notifier_block *notif, unsigned long event, void* ptr) {
-    struct net_device *netdev = ptr;
+    struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
     netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(netdev);
     unifi_priv_t *priv = NULL;
     static const CsrWifiMacAddress broadcast_address = {{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}};
diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c
index 94e426e..b2330f1 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c
@@ -164,7 +164,7 @@ static const struct file_operations ft1000_proc_fops = {
 static int ft1000NotifyProc(struct notifier_block *this, unsigned long event,
 				void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct ft1000_info *info;
 
 	info = netdev_priv(dev);
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c b/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c
index eca6f02..5ead942 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_proc.c
@@ -166,7 +166,7 @@ static const struct file_operations ft1000_proc_fops = {
 static int
 ft1000NotifyProc(struct notifier_block *this, unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct ft1000_info *info;
 	struct proc_dir_entry *ft1000_proc_file;
 
diff --git a/drivers/staging/silicom/bpctl_mod.c b/drivers/staging/silicom/bpctl_mod.c
index b7e570c..c8ddb99 100644
--- a/drivers/staging/silicom/bpctl_mod.c
+++ b/drivers/staging/silicom/bpctl_mod.c
@@ -133,7 +133,7 @@ static unsigned long str_to_hex(char *p);
 static int bp_device_event(struct notifier_block *unused,
 			   unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	static bpctl_dev_t *pbpctl_dev = NULL, *pbpctl_dev_m = NULL;
 	int dev_num = 0, ret = 0, ret_d = 0, time_left = 0;
 	/* printk("BP_PROC_SUPPORT event =%d %s %d\n", event,dev->name, dev->ifindex ); */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 6b2bb46..13a3484 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1599,6 +1599,19 @@ struct packet_offload {
 
 extern int register_netdevice_notifier(struct notifier_block *nb);
 extern int unregister_netdevice_notifier(struct notifier_block *nb);
+
+struct netdev_notifier_info {
+	struct net_device *dev;
+};
+
+static inline struct net_device *
+netdev_notifier_info_to_dev(const struct netdev_notifier_info *info)
+{
+	return info->dev;
+}
+
+extern int call_netdevice_notifiers_info(unsigned long val, struct net_device *dev,
+					 struct netdev_notifier_info *info);
 extern int call_netdevice_notifiers(unsigned long val, struct net_device *dev);
 
 
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 9424f37..2fb2d88 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -341,7 +341,7 @@ static void __vlan_device_event(struct net_device *dev, unsigned long event)
 static int vlan_device_event(struct notifier_block *unused, unsigned long event,
 			     void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct vlan_group *grp;
 	struct vlan_info *vlan_info;
 	int i, flgs;
diff --git a/net/appletalk/aarp.c b/net/appletalk/aarp.c
index 173a2e8..690356f 100644
--- a/net/appletalk/aarp.c
+++ b/net/appletalk/aarp.c
@@ -332,7 +332,7 @@ static void aarp_expire_timeout(unsigned long unused)
 static int aarp_device_event(struct notifier_block *this, unsigned long event,
 			     void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	int ct;
 
 	if (!net_eq(dev_net(dev), &init_net))
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index ef12839..7fee50d 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -644,7 +644,7 @@ static inline void atalk_dev_down(struct net_device *dev)
 static int ddp_device_event(struct notifier_block *this, unsigned long event,
 			    void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 8ae3a78..cce241e 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -539,9 +539,9 @@ static int clip_create(int number)
 }
 
 static int clip_device_event(struct notifier_block *this, unsigned long event,
-			     void *arg)
+			     void *ptr)
 {
-	struct net_device *dev = arg;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
diff --git a/net/atm/mpc.c b/net/atm/mpc.c
index d4cc1be..3af1275 100644
--- a/net/atm/mpc.c
+++ b/net/atm/mpc.c
@@ -998,14 +998,12 @@ int msg_to_mpoad(struct k_message *mesg, struct mpoa_client *mpc)
 }
 
 static int mpoa_event_listener(struct notifier_block *mpoa_notifier,
-			       unsigned long event, void *dev_ptr)
+			       unsigned long event, void *ptr)
 {
-	struct net_device *dev;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct mpoa_client *mpc;
 	struct lec_priv *priv;
 
-	dev = dev_ptr;
-
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
 
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index e277e38..4b4d2b7 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -111,9 +111,9 @@ again:
  *	Handle device status changes.
  */
 static int ax25_device_event(struct notifier_block *this, unsigned long event,
-	void *ptr)
+			     void *ptr)
 {
-	struct net_device *dev = (struct net_device *)ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
@@ -1974,7 +1974,7 @@ static struct packet_type ax25_packet_type __read_mostly = {
 };
 
 static struct notifier_block ax25_dev_notifier = {
-	.notifier_call =ax25_device_event,
+	.notifier_call = ax25_device_event,
 };
 
 static int __init ax25_init(void)
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 522243a..b6504ea 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -595,7 +595,7 @@ void batadv_hardif_remove_interfaces(void)
 static int batadv_hard_if_event(struct notifier_block *this,
 				unsigned long event, void *ptr)
 {
-	struct net_device *net_dev = ptr;
+	struct net_device *net_dev = netdev_notifier_info_to_dev(ptr);
 	struct batadv_hard_iface *hard_iface;
 	struct batadv_hard_iface *primary_if = NULL;
 	struct batadv_priv *bat_priv;
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 1644b3e..3a3f371 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -31,7 +31,7 @@ struct notifier_block br_device_notifier = {
  */
 static int br_device_event(struct notifier_block *unused, unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net_bridge_port *p;
 	struct net_bridge *br;
 	bool changed_addr;
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index 1f9ece1..4dca159 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -352,9 +352,9 @@ EXPORT_SYMBOL(caif_enroll_dev);
 
 /* notify Caif of device events */
 static int caif_device_notify(struct notifier_block *me, unsigned long what,
-			      void *arg)
+			      void *ptr)
 {
-	struct net_device *dev = arg;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct caif_device_entry *caifd = NULL;
 	struct caif_dev_common *caifdev;
 	struct cfcnfg *cfg;
diff --git a/net/caif/caif_usb.c b/net/caif/caif_usb.c
index 942e00a..75ed04b 100644
--- a/net/caif/caif_usb.c
+++ b/net/caif/caif_usb.c
@@ -121,9 +121,9 @@ static struct packet_type caif_usb_type __read_mostly = {
 };
 
 static int cfusbl_device_notify(struct notifier_block *me, unsigned long what,
-				void *arg)
+				void *ptr)
 {
-	struct net_device *dev = arg;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct caif_dev_common common;
 	struct cflayer *layer, *link_support;
 	struct usbnet *usbnet;
diff --git a/net/can/af_can.c b/net/can/af_can.c
index c4e5085..3ab8dd2 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -794,9 +794,9 @@ EXPORT_SYMBOL(can_proto_unregister);
  * af_can notifier to create/remove CAN netdevice specific structs
  */
 static int can_notifier(struct notifier_block *nb, unsigned long msg,
-			void *data)
+			void *ptr)
 {
-	struct net_device *dev = (struct net_device *)data;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct dev_rcv_lists *d;
 
 	if (!net_eq(dev_net(dev), &init_net))
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 8f113e6..46f20bf 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1350,9 +1350,9 @@ static int bcm_sendmsg(struct kiocb *iocb, struct socket *sock,
  * notification handler for netdevice status changes
  */
 static int bcm_notifier(struct notifier_block *nb, unsigned long msg,
-			void *data)
+			void *ptr)
 {
-	struct net_device *dev = (struct net_device *)data;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct bcm_sock *bo = container_of(nb, struct bcm_sock, notifier);
 	struct sock *sk = &bo->sk;
 	struct bcm_op *op;
diff --git a/net/can/gw.c b/net/can/gw.c
index 3ee690e..2f291f9 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -445,9 +445,9 @@ static inline void cgw_unregister_filter(struct cgw_job *gwj)
 }
 
 static int cgw_notifier(struct notifier_block *nb,
-			unsigned long msg, void *data)
+			unsigned long msg, void *ptr)
 {
-	struct net_device *dev = (struct net_device *)data;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
diff --git a/net/can/raw.c b/net/can/raw.c
index 1085e65..641e1c8 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -239,9 +239,9 @@ static int raw_enable_allfilters(struct net_device *dev, struct sock *sk)
 }
 
 static int raw_notifier(struct notifier_block *nb,
-			unsigned long msg, void *data)
+			unsigned long msg, void *ptr)
 {
-	struct net_device *dev = (struct net_device *)data;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct raw_sock *ro = container_of(nb, struct raw_sock, notifier);
 	struct sock *sk = &ro->sk;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 5f74797..54fce60 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1391,6 +1391,20 @@ void dev_disable_lro(struct net_device *dev)
 }
 EXPORT_SYMBOL(dev_disable_lro);
 
+static void netdev_notifier_info_init(struct netdev_notifier_info *info,
+				      struct net_device *dev)
+{
+	info->dev = dev;
+}
+
+static int call_netdevice_notifier(struct notifier_block *nb, unsigned long val,
+				   struct net_device *dev)
+{
+	struct netdev_notifier_info info;
+
+	netdev_notifier_info_init(&info, dev);
+	return nb->notifier_call(nb, val, &info);
+}
 
 static int dev_boot_phase = 1;
 
@@ -1423,7 +1437,7 @@ int register_netdevice_notifier(struct notifier_block *nb)
 		goto unlock;
 	for_each_net(net) {
 		for_each_netdev(net, dev) {
-			err = nb->notifier_call(nb, NETDEV_REGISTER, dev);
+			err = call_netdevice_notifier(nb, NETDEV_REGISTER, dev);
 			err = notifier_to_errno(err);
 			if (err)
 				goto rollback;
@@ -1431,7 +1445,7 @@ int register_netdevice_notifier(struct notifier_block *nb)
 			if (!(dev->flags & IFF_UP))
 				continue;
 
-			nb->notifier_call(nb, NETDEV_UP, dev);
+			call_netdevice_notifier(nb, NETDEV_UP, dev);
 		}
 	}
 
@@ -1447,10 +1461,11 @@ rollback:
 				goto outroll;
 
 			if (dev->flags & IFF_UP) {
-				nb->notifier_call(nb, NETDEV_GOING_DOWN, dev);
-				nb->notifier_call(nb, NETDEV_DOWN, dev);
+				call_netdevice_notifier(nb, NETDEV_GOING_DOWN,
+							dev);
+				call_netdevice_notifier(nb, NETDEV_DOWN, dev);
 			}
-			nb->notifier_call(nb, NETDEV_UNREGISTER, dev);
+			call_netdevice_notifier(nb, NETDEV_UNREGISTER, dev);
 		}
 	}
 
@@ -1488,10 +1503,11 @@ int unregister_netdevice_notifier(struct notifier_block *nb)
 	for_each_net(net) {
 		for_each_netdev(net, dev) {
 			if (dev->flags & IFF_UP) {
-				nb->notifier_call(nb, NETDEV_GOING_DOWN, dev);
-				nb->notifier_call(nb, NETDEV_DOWN, dev);
+				call_netdevice_notifier(nb, NETDEV_GOING_DOWN,
+							dev);
+				call_netdevice_notifier(nb, NETDEV_DOWN, dev);
 			}
-			nb->notifier_call(nb, NETDEV_UNREGISTER, dev);
+			call_netdevice_notifier(nb, NETDEV_UNREGISTER, dev);
 		}
 	}
 unlock:
@@ -1501,6 +1517,25 @@ unlock:
 EXPORT_SYMBOL(unregister_netdevice_notifier);
 
 /**
+ *	call_netdevice_notifiers_info - call all network notifier blocks
+ *	@val: value passed unmodified to notifier function
+ *	@dev: net_device pointer passed unmodified to notifier function
+ *	@info: notifier information data
+ *
+ *	Call all network notifier blocks.  Parameters and return value
+ *	are as for raw_notifier_call_chain().
+ */
+
+int call_netdevice_notifiers_info(unsigned long val, struct net_device *dev,
+				  struct netdev_notifier_info *info)
+{
+	ASSERT_RTNL();
+	netdev_notifier_info_init(info, dev);
+	return raw_notifier_call_chain(&netdev_chain, val, info);
+}
+EXPORT_SYMBOL(call_netdevice_notifiers_info);
+
+/**
  *	call_netdevice_notifiers - call all network notifier blocks
  *      @val: value passed unmodified to notifier function
  *      @dev: net_device pointer passed unmodified to notifier function
@@ -1511,8 +1546,9 @@ EXPORT_SYMBOL(unregister_netdevice_notifier);
 
 int call_netdevice_notifiers(unsigned long val, struct net_device *dev)
 {
-	ASSERT_RTNL();
-	return raw_notifier_call_chain(&netdev_chain, val, dev);
+	struct netdev_notifier_info info;
+
+	return call_netdevice_notifiers_info(val, dev, &info);
 }
 EXPORT_SYMBOL(call_netdevice_notifiers);
 
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index d23b668..5e78d44 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -295,9 +295,9 @@ static int net_dm_cmd_trace(struct sk_buff *skb,
 }
 
 static int dropmon_net_event(struct notifier_block *ev_block,
-			unsigned long event, void *ptr)
+			     unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct dm_hw_stat_delta *new_stat = NULL;
 	struct dm_hw_stat_delta *tmp;
 
diff --git a/net/core/dst.c b/net/core/dst.c
index df9cc81..ca4231e 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -372,7 +372,7 @@ static void dst_ifdown(struct dst_entry *dst, struct net_device *dev,
 static int dst_dev_event(struct notifier_block *this, unsigned long event,
 			 void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct dst_entry *dst, *last = NULL;
 
 	switch (event) {
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index d5a9f8e..2173544 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -705,9 +705,9 @@ static void detach_rules(struct list_head *rules, struct net_device *dev)
 
 
 static int fib_rules_event(struct notifier_block *this, unsigned long event,
-			    void *ptr)
+			   void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 	struct fib_rules_ops *ops;
 
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index 0777d0a..e533259 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -261,7 +261,7 @@ struct cgroup_subsys net_prio_subsys = {
 static int netprio_device_event(struct notifier_block *unused,
 				unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct netprio_map *old;
 
 	/*
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 11f2704..795498f 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -1921,7 +1921,7 @@ static void pktgen_change_name(const struct pktgen_net *pn, struct net_device *d
 static int pktgen_device_event(struct notifier_block *unused,
 			       unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct pktgen_net *pn = net_generic(dev_net(dev), pg_net_id);
 
 	if (pn->pktgen_exiting)
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index a08bd2b..49c1445 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2667,7 +2667,7 @@ static void rtnetlink_rcv(struct sk_buff *skb)
 
 static int rtnetlink_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	switch (event) {
 	case NETDEV_UP:
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index c21f200..dd4d506 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -2078,9 +2078,9 @@ out_err:
 }
 
 static int dn_device_event(struct notifier_block *this, unsigned long event,
-			void *ptr)
+			   void *ptr)
 {
-	struct net_device *dev = (struct net_device *)ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 55e1fd5..3b9d5f2 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1352,10 +1352,9 @@ static inline void lowpan_netlink_fini(void)
 }
 
 static int lowpan_device_event(struct notifier_block *unused,
-				unsigned long event,
-				void *ptr)
+			       unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	LIST_HEAD(del_list);
 	struct lowpan_dev_record *entry, *tmp;
 
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 247ec19..bf57402 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1234,7 +1234,7 @@ out:
 static int arp_netdev_event(struct notifier_block *this, unsigned long event,
 			    void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	switch (event) {
 	case NETDEV_CHANGEADDR:
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index dfc39d4..b047e2d 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1333,7 +1333,7 @@ static void inetdev_send_gratuitous_arp(struct net_device *dev,
 static int inetdev_event(struct notifier_block *this, unsigned long event,
 			 void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct in_device *in_dev = __in_dev_get_rtnl(dev);
 
 	ASSERT_RTNL();
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index c7629a2..05a4888 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1038,7 +1038,7 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
 
 static int fib_netdev_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct in_device *in_dev;
 	struct net *net = dev_net(dev);
 
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 9d9610a..f975399 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1609,7 +1609,7 @@ int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
 
 static int ipmr_device_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 	struct mr_table *mrt;
 	struct vif_device *v;
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 5d5d4d1..dd5508b 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -108,7 +108,7 @@ static int masq_device_event(struct notifier_block *this,
 			     unsigned long event,
 			     void *ptr)
 {
-	const struct net_device *dev = ptr;
+	const struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 
 	if (event == NETDEV_DOWN) {
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 432e084..bce073b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2826,9 +2826,9 @@ static void addrconf_ip6_tnl_config(struct net_device *dev)
 }
 
 static int addrconf_notify(struct notifier_block *this, unsigned long event,
-			   void *data)
+			   void *ptr)
 {
-	struct net_device *dev = (struct net_device *) data;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct inet6_dev *idev = __in6_dev_get(dev);
 	int run_pending = 0;
 	int err;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 241fb8a..583e8d4 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1319,7 +1319,7 @@ static int ip6mr_mfc_delete(struct mr6_table *mrt, struct mf6cctl *mfc,
 static int ip6mr_device_event(struct notifier_block *this,
 			      unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 	struct mr6_table *mrt;
 	struct mif_device *v;
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 2712ab2..a096269 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1568,7 +1568,7 @@ int ndisc_rcv(struct sk_buff *skb)
 
 static int ndisc_netdev_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 	struct inet6_dev *idev;
 
diff --git a/net/ipv6/netfilter/ip6t_MASQUERADE.c b/net/ipv6/netfilter/ip6t_MASQUERADE.c
index 60e9053..b76257c 100644
--- a/net/ipv6/netfilter/ip6t_MASQUERADE.c
+++ b/net/ipv6/netfilter/ip6t_MASQUERADE.c
@@ -71,7 +71,7 @@ static int device_cmp(struct nf_conn *ct, void *ifindex)
 static int masq_device_event(struct notifier_block *this,
 			     unsigned long event, void *ptr)
 {
-	const struct net_device *dev = ptr;
+	const struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 
 	if (event == NETDEV_DOWN)
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index ad0aa6b..194c3cd 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2681,9 +2681,9 @@ errout:
 }
 
 static int ip6_route_dev_notify(struct notifier_block *this,
-				unsigned long event, void *data)
+				unsigned long event, void *ptr)
 {
-	struct net_device *dev = (struct net_device *)data;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 
 	if (event == NETDEV_REGISTER && (dev->flags & IFF_LOOPBACK)) {
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index f547a47..7a1e0fc 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -330,7 +330,7 @@ static __inline__ void __ipxitf_put(struct ipx_interface *intrfc)
 static int ipxitf_device_event(struct notifier_block *notifier,
 				unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct ipx_interface *i, *tmp;
 
 	if (!net_eq(dev_net(dev), &init_net))
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index ae69165..168aff5 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -2293,7 +2293,7 @@ out_unlock:
 static int afiucv_netdev_event(struct notifier_block *this,
 			       unsigned long event, void *ptr)
 {
-	struct net_device *event_dev = (struct net_device *)ptr;
+	struct net_device *event_dev = netdev_notifier_info_to_dev(ptr);
 	struct sock *sk;
 	struct iucv_sock *iucv;
 
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 60f1ce5..d2c3fd1 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1717,10 +1717,9 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 }
 
 static int netdev_notify(struct notifier_block *nb,
-			 unsigned long state,
-			 void *ndev)
+			 unsigned long state, void *ptr)
 {
-	struct net_device *dev = ndev;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct ieee80211_sub_if_data *sdata;
 
 	if (state != NETDEV_CHANGENAME)
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 5b142fb..7c3ed42 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1487,9 +1487,9 @@ ip_vs_forget_dev(struct ip_vs_dest *dest, struct net_device *dev)
  * Currently only NETDEV_DOWN is handled to release refs to cached dsts
  */
 static int ip_vs_dst_event(struct notifier_block *this, unsigned long event,
-			    void *ptr)
+			   void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 	struct netns_ipvs *ipvs = net_ipvs(net);
 	struct ip_vs_service *svc;
diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index 4e27fa0..0f2ac8f 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -800,7 +800,7 @@ static int
 nfqnl_rcv_dev_event(struct notifier_block *this,
 		    unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	/* Drop any packets associated with the downed device */
 	if (event == NETDEV_DOWN)
diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c
index bd93e51..292934d 100644
--- a/net/netfilter/xt_TEE.c
+++ b/net/netfilter/xt_TEE.c
@@ -200,7 +200,7 @@ tee_tg6(struct sk_buff *skb, const struct xt_action_param *par)
 static int tee_netdev_event(struct notifier_block *this, unsigned long event,
 			    void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct xt_tee_priv *priv;
 
 	priv = container_of(this, struct xt_tee_priv, notifier);
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 8a6c6ea..af35319 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -708,7 +708,7 @@ unlhsh_remove_return:
  * netlbl_unlhsh_netdev_handler - Network device notification handler
  * @this: notifier block
  * @event: the event
- * @ptr: the network device (cast to void)
+ * @ptr: the netdevice notifier info (cast to void)
  *
  * Description:
  * Handle network device events, although at present all we care about is a
@@ -717,10 +717,9 @@ unlhsh_remove_return:
  *
  */
 static int netlbl_unlhsh_netdev_handler(struct notifier_block *this,
-					unsigned long event,
-					void *ptr)
+					unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct netlbl_unlhsh_iface *iface = NULL;
 
 	if (!net_eq(dev_net(dev), &init_net))
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index ec0c80f..698814b 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -117,7 +117,7 @@ static void nr_kill_by_device(struct net_device *dev)
  */
 static int nr_device_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
-	struct net_device *dev = (struct net_device *)ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
diff --git a/net/openvswitch/dp_notify.c b/net/openvswitch/dp_notify.c
index ef4feec..c323567 100644
--- a/net/openvswitch/dp_notify.c
+++ b/net/openvswitch/dp_notify.c
@@ -78,7 +78,7 @@ static int dp_device_event(struct notifier_block *unused, unsigned long event,
 			   void *ptr)
 {
 	struct ovs_net *ovs_net;
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct vport *vport = NULL;
 
 	if (!ovs_is_internal_dev(dev))
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 8ec1bca..79fe632 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -3331,10 +3331,11 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 }
 
 
-static int packet_notifier(struct notifier_block *this, unsigned long msg, void *data)
+static int packet_notifier(struct notifier_block *this,
+			   unsigned long msg, void *ptr)
 {
 	struct sock *sk;
-	struct net_device *dev = data;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct net *net = dev_net(dev);
 
 	rcu_read_lock();
diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c
index 45a7df6..56a6146 100644
--- a/net/phonet/pn_dev.c
+++ b/net/phonet/pn_dev.c
@@ -292,9 +292,9 @@ static void phonet_route_autodel(struct net_device *dev)
 
 /* notify Phonet of device events */
 static int phonet_device_notify(struct notifier_block *me, unsigned long what,
-				void *arg)
+				void *ptr)
 {
-	struct net_device *dev = arg;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	switch (what) {
 	case NETDEV_REGISTER:
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 9c83474..e98fcfb 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -202,10 +202,10 @@ static void rose_kill_by_device(struct net_device *dev)
 /*
  *	Handle device status changes.
  */
-static int rose_device_event(struct notifier_block *this, unsigned long event,
-	void *ptr)
+static int rose_device_event(struct notifier_block *this,
+			     unsigned long event, void *ptr)
 {
-	struct net_device *dev = (struct net_device *)ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 5d676ed..977c10e 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -243,7 +243,7 @@ nla_put_failure:
 static int mirred_device_event(struct notifier_block *unused,
 			       unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct tcf_mirred *m;
 
 	if (event == NETDEV_UNREGISTER)
diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index 120a676..fc60bea 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -251,9 +251,9 @@ static void disable_bearer(struct tipc_bearer *tb_ptr)
  * specified device.
  */
 static int recv_notification(struct notifier_block *nb, unsigned long evt,
-			     void *dv)
+			     void *ptr)
 {
-	struct net_device *dev = (struct net_device *)dv;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct eth_bearer *eb_ptr = &eth_bearers[0];
 	struct eth_bearer *stop = &eth_bearers[MAX_ETH_BEARERS];
 
diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c
index 2a2864c..baa9df4 100644
--- a/net/tipc/ib_media.c
+++ b/net/tipc/ib_media.c
@@ -244,9 +244,9 @@ static void disable_bearer(struct tipc_bearer *tb_ptr)
  * specified device.
  */
 static int recv_notification(struct notifier_block *nb, unsigned long evt,
-			     void *dv)
+			     void *ptr)
 {
-	struct net_device *dev = (struct net_device *)dv;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct ib_bearer *ib_ptr = &ib_bearers[0];
 	struct ib_bearer *stop = &ib_bearers[MAX_IB_BEARERS];
 
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 73405e0..01e4119 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -886,10 +886,9 @@ void cfg80211_leave(struct cfg80211_registered_device *rdev,
 }
 
 static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
-					 unsigned long state,
-					 void *ndev)
+					 unsigned long state, void *ptr)
 {
-	struct net_device *dev = ndev;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev;
 	int ret;
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 37ca969..1d964e2 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -224,7 +224,7 @@ static void x25_kill_by_device(struct net_device *dev)
 static int x25_device_event(struct notifier_block *this, unsigned long event,
 			    void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct x25_neigh *nb;
 
 	if (!net_eq(dev_net(dev), &init_net))
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 23cea0f..536ccc9 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2784,7 +2784,7 @@ static void __net_init xfrm_dst_ops_init(struct net *net)
 
 static int xfrm_dev_event(struct notifier_block *this, unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	switch (event) {
 	case NETDEV_DOWN:
diff --git a/security/selinux/netif.c b/security/selinux/netif.c
index 47a49d1..694e9e4 100644
--- a/security/selinux/netif.c
+++ b/security/selinux/netif.c
@@ -264,7 +264,7 @@ static int sel_netif_avc_callback(u32 event)
 static int sel_netif_netdev_notifier_handler(struct notifier_block *this,
 					     unsigned long event, void *ptr)
 {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (dev_net(dev) != &init_net)
 		return NOTIFY_DONE;
-- 
cgit v0.10.2


From be9efd3653284f2827fd82861e8e9db9a8f726e1 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Tue, 28 May 2013 01:30:22 +0000
Subject: net: pass changed flags along with NETDEV_CHANGE event
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Use new netdevice notifier infrastructure to pass along changed flags.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>

v2->v3: shortened notifier_info struct name
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 13a3484..8502718 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1604,6 +1604,11 @@ struct netdev_notifier_info {
 	struct net_device *dev;
 };
 
+struct netdev_notifier_change_info {
+	struct netdev_notifier_info info; /* must be first */
+	unsigned int flags_changed;
+};
+
 static inline struct net_device *
 netdev_notifier_info_to_dev(const struct netdev_notifier_info *info)
 {
diff --git a/net/core/dev.c b/net/core/dev.c
index 54fce60..6eb621c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4771,8 +4771,13 @@ void __dev_notify_flags(struct net_device *dev, unsigned int old_flags)
 	}
 
 	if (dev->flags & IFF_UP &&
-	    (changes & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | IFF_VOLATILE)))
-		call_netdevice_notifiers(NETDEV_CHANGE, dev);
+	    (changes & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | IFF_VOLATILE))) {
+		struct netdev_notifier_change_info change_info;
+
+		change_info.flags_changed = changes;
+		call_netdevice_notifiers_info(NETDEV_CHANGE, dev,
+					      &change_info.info);
+	}
 }
 
 /**
-- 
cgit v0.10.2


From 6c8b4e3ff81b82fc153625e81e60af1d89de2c32 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
Date: Tue, 28 May 2013 01:30:23 +0000
Subject: arp: flush arp cache on IFF_NOARP change
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

IFF_NOARP affects what kind of neighbor entries are created
(nud NOARP or nud INCOMPLETE). If the flag changes, flush the arp
cache to refresh all entries.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>

v2->v3: shortened notifier_info struct name
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index bf57402..4429b01 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -1235,12 +1235,18 @@ static int arp_netdev_event(struct notifier_block *this, unsigned long event,
 			    void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+	struct netdev_notifier_change_info *change_info;
 
 	switch (event) {
 	case NETDEV_CHANGEADDR:
 		neigh_changeaddr(&arp_tbl, dev);
 		rt_cache_flush(dev_net(dev));
 		break;
+	case NETDEV_CHANGE:
+		change_info = ptr;
+		if (change_info->flags_changed & IFF_NOARP)
+			neigh_changeaddr(&arp_tbl, dev);
+		break;
 	default:
 		break;
 	}
-- 
cgit v0.10.2


From 06ecf24bdf2b7afc6c8fd13de6dba2a96dd331b6 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 28 May 2013 13:15:50 -0700
Subject: net: Fix build warnings after mac_header and transport_header became
 __u16.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

net/core/skbuff.c: In function ‘__alloc_skb_head’:
net/core/skbuff.c:203:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
net/core/skbuff.c: In function ‘__alloc_skb’:
net/core/skbuff.c:279:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
net/core/skbuff.c:280:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
net/core/skbuff.c: In function ‘build_skb’:
net/core/skbuff.c:348:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
net/core/skbuff.c:349:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index d629891..f45de07 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -200,7 +200,7 @@ struct sk_buff *__alloc_skb_head(gfp_t gfp_mask, int node)
 	atomic_set(&skb->users, 1);
 
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
-	skb->mac_header = ~0U;
+	skb->mac_header = (__u16) ~0U;
 #endif
 out:
 	return skb;
@@ -276,8 +276,8 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 	skb_reset_tail_pointer(skb);
 	skb->end = skb->tail + size;
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
-	skb->mac_header = ~0U;
-	skb->transport_header = ~0U;
+	skb->mac_header = (__u16) ~0U;
+	skb->transport_header = (__u16) ~0U;
 #endif
 
 	/* make sure we initialize shinfo sequentially */
@@ -345,8 +345,8 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size)
 	skb_reset_tail_pointer(skb);
 	skb->end = skb->tail + size;
 #ifdef NET_SKBUFF_DATA_USES_OFFSET
-	skb->mac_header = ~0U;
-	skb->transport_header = ~0U;
+	skb->mac_header = (__u16) ~0U;
+	skb->transport_header = (__u16) ~0U;
 #endif
 
 	/* make sure we initialize shinfo sequentially */
-- 
cgit v0.10.2


From de68d1003d9eb0a5f7d4714315614e4bc956f68e Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sat, 9 Mar 2013 23:14:22 +0100
Subject: batman-adv: split batadv_is_wifi_iface() into two functions

Previously batadv_is_wifi_iface() did two things at once: looking up a
net_device from an interface index, and determining if it is a wifi device.

The second part is useful itself when the caller already has a net_device
reference.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index b6504ea..d5ec67b 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -117,6 +117,58 @@ static int batadv_is_valid_iface(const struct net_device *net_dev)
 	return 1;
 }
 
+/**
+ * batadv_is_wifi_netdev - check if the given net_device struct is a wifi
+ *  interface
+ * @net_device: the device to check
+ *
+ * Returns true if the net device is a 802.11 wireless device, false otherwise.
+ */
+static bool batadv_is_wifi_netdev(struct net_device *net_device)
+{
+#ifdef CONFIG_WIRELESS_EXT
+	/* pre-cfg80211 drivers have to implement WEXT, so it is possible to
+	 * check for wireless_handlers != NULL
+	 */
+	if (net_device->wireless_handlers)
+		return true;
+#endif
+
+	/* cfg80211 drivers have to set ieee80211_ptr */
+	if (net_device->ieee80211_ptr)
+		return true;
+
+	return false;
+}
+
+/**
+ * batadv_is_wifi_iface - check if the given interface represented by ifindex
+ *  is a wifi interface
+ * @ifindex: interface index to check
+ *
+ * Returns true if the interface represented by ifindex is a 802.11 wireless
+ * device, false otherwise.
+ */
+bool batadv_is_wifi_iface(int ifindex)
+{
+	struct net_device *net_device = NULL;
+	bool ret = false;
+
+	if (ifindex == BATADV_NULL_IFINDEX)
+		goto out;
+
+	net_device = dev_get_by_index(&init_net, ifindex);
+	if (!net_device)
+		goto out;
+
+	ret = batadv_is_wifi_netdev(net_device);
+
+out:
+	if (net_device)
+		dev_put(net_device);
+	return ret;
+}
+
 static struct batadv_hard_iface *
 batadv_hardif_get_active(const struct net_device *soft_iface)
 {
@@ -657,38 +709,6 @@ out:
 	return NOTIFY_DONE;
 }
 
-/* This function returns true if the interface represented by ifindex is a
- * 802.11 wireless device
- */
-bool batadv_is_wifi_iface(int ifindex)
-{
-	struct net_device *net_device = NULL;
-	bool ret = false;
-
-	if (ifindex == BATADV_NULL_IFINDEX)
-		goto out;
-
-	net_device = dev_get_by_index(&init_net, ifindex);
-	if (!net_device)
-		goto out;
-
-#ifdef CONFIG_WIRELESS_EXT
-	/* pre-cfg80211 drivers have to implement WEXT, so it is possible to
-	 * check for wireless_handlers != NULL
-	 */
-	if (net_device->wireless_handlers)
-		ret = true;
-	else
-#endif
-		/* cfg80211 drivers have to set ieee80211_ptr */
-		if (net_device->ieee80211_ptr)
-			ret = true;
-out:
-	if (net_device)
-		dev_put(net_device);
-	return ret;
-}
-
 struct notifier_block batadv_hard_if_notifier = {
 	.notifier_call = batadv_hard_if_event,
 };
-- 
cgit v0.10.2


From caf65bfcc5dbabd7222fa45fdcd42ce0783d7a42 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sat, 9 Mar 2013 23:14:23 +0100
Subject: batman-adv: send each broadcast only once on non-wireless interfaces

While it makes sense to send each broadcast thrice on 802.11 (WLAN) interfaces
as broadcasts are often unreliable on these, there is no reason to do so on
other interface types.

The increased the overhead can be harmful on low-bandwidth links like VPN
connections over slow internet lines, therefore it is better to reduce the
number of broadcast packets sent on non-wireless links to one.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index d5ec67b..4a76ed6 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -593,6 +593,10 @@ batadv_hardif_add_interface(struct net_device *net_dev)
 	INIT_WORK(&hard_iface->cleanup_work,
 		  batadv_hardif_remove_interface_finish);
 
+	hard_iface->num_bcasts = BATADV_NUM_BCASTS_DEFAULT;
+	if (batadv_is_wifi_netdev(net_dev))
+		hard_iface->num_bcasts = BATADV_NUM_BCASTS_WIRELESS;
+
 	/* extra reference for return */
 	atomic_set(&hard_iface->refcount, 2);
 
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 59a0d6a..ea1a3ba 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -76,6 +76,11 @@
 
 #define BATADV_LOG_BUF_LEN 8192	  /* has to be a power of 2 */
 
+/* number of packets to send for broadcasts on different interface types */
+#define BATADV_NUM_BCASTS_DEFAULT 1
+#define BATADV_NUM_BCASTS_WIRELESS 3
+#define BATADV_NUM_BCASTS_MAX 3
+
 /* msecs after which an ARP_REQUEST is sent in broadcast as fallback */
 #define ARP_REQ_DELAY 250
 /* numbers of originator to contact for any PUT/GET DHT operation */
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 263cfd1..eb16b04 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -260,6 +260,9 @@ static void batadv_send_outstanding_bcast_packet(struct work_struct *work)
 		if (hard_iface->soft_iface != soft_iface)
 			continue;
 
+		if (forw_packet->num_packets >= hard_iface->num_bcasts)
+			continue;
+
 		/* send a copy of the saved skb */
 		skb1 = skb_clone(forw_packet->skb, GFP_ATOMIC);
 		if (skb1)
@@ -271,7 +274,7 @@ static void batadv_send_outstanding_bcast_packet(struct work_struct *work)
 	forw_packet->num_packets++;
 
 	/* if we still have some more bcasts to send */
-	if (forw_packet->num_packets < 3) {
+	if (forw_packet->num_packets < BATADV_NUM_BCASTS_MAX) {
 		_batadv_add_bcast_packet_to_list(bat_priv, forw_packet,
 						 msecs_to_jiffies(5));
 		return;
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index aba8364..5f542bd 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -61,6 +61,7 @@ struct batadv_hard_iface_bat_iv {
  * @if_status: status of the interface for batman-adv
  * @net_dev: pointer to the net_device
  * @frag_seqno: last fragment sequence number sent by this interface
+ * @num_bcasts: number of payload re-broadcasts on this interface (ARQ)
  * @hardif_obj: kobject of the per interface sysfs "mesh" directory
  * @refcount: number of contexts the object is used
  * @batman_adv_ptype: packet type describing packets that should be processed by
@@ -76,6 +77,7 @@ struct batadv_hard_iface {
 	char if_status;
 	struct net_device *net_dev;
 	atomic_t frag_seqno;
+	uint8_t num_bcasts;
 	struct kobject *hardif_obj;
 	atomic_t refcount;
 	struct packet_type batman_adv_ptype;
-- 
cgit v0.10.2


From 93178018eb35aaa6ebcb5a136dce7eb3add011ab Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Sun, 10 Mar 2013 19:29:15 +0800
Subject: batman-adv: fix typos in kernel doc & comments

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 2399920..06345d4 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -45,9 +45,9 @@ static void batadv_dat_start_timer(struct batadv_priv *bat_priv)
 }
 
 /**
- * batadv_dat_entry_free_ref - decrements the dat_entry refcounter and possibly
+ * batadv_dat_entry_free_ref - decrement the dat_entry refcounter and possibly
  * free it
- * @dat_entry: the oentry to free
+ * @dat_entry: the entry to free
  */
 static void batadv_dat_entry_free_ref(struct batadv_dat_entry *dat_entry)
 {
@@ -56,10 +56,10 @@ static void batadv_dat_entry_free_ref(struct batadv_dat_entry *dat_entry)
 }
 
 /**
- * batadv_dat_to_purge - checks whether a dat_entry has to be purged or not
+ * batadv_dat_to_purge - check whether a dat_entry has to be purged or not
  * @dat_entry: the entry to check
  *
- * Returns true if the entry has to be purged now, false otherwise
+ * Returns true if the entry has to be purged now, false otherwise.
  */
 static bool batadv_dat_to_purge(struct batadv_dat_entry *dat_entry)
 {
@@ -75,8 +75,8 @@ static bool batadv_dat_to_purge(struct batadv_dat_entry *dat_entry)
  *	      returns a boolean value: true is the entry has to be deleted,
  *	      false otherwise
  *
- * Loops over each entry in the DAT local storage and delete it if and only if
- * the to_purge function passed as argument returns true
+ * Loops over each entry in the DAT local storage and deletes it if and only if
+ * the to_purge function passed as argument returns true.
  */
 static void __batadv_dat_purge(struct batadv_priv *bat_priv,
 			       bool (*to_purge)(struct batadv_dat_entry *))
@@ -97,7 +97,7 @@ static void __batadv_dat_purge(struct batadv_priv *bat_priv,
 		spin_lock_bh(list_lock);
 		hlist_for_each_entry_safe(dat_entry, node_tmp, head,
 					  hash_entry) {
-			/* if an helper function has been passed as parameter,
+			/* if a helper function has been passed as parameter,
 			 * ask it if the entry has to be purged or not
 			 */
 			if (to_purge && !to_purge(dat_entry))
@@ -134,7 +134,7 @@ static void batadv_dat_purge(struct work_struct *work)
  * @node: node in the local table
  * @data2: second object to compare the node to
  *
- * Returns 1 if the two entry are the same, 0 otherwise
+ * Returns 1 if the two entries are the same, 0 otherwise.
  */
 static int batadv_compare_dat(const struct hlist_node *node, const void *data2)
 {
@@ -149,7 +149,7 @@ static int batadv_compare_dat(const struct hlist_node *node, const void *data2)
  * @skb: ARP packet
  * @hdr_size: size of the possible header before the ARP packet
  *
- * Returns the value of the hw_src field in the ARP packet
+ * Returns the value of the hw_src field in the ARP packet.
  */
 static uint8_t *batadv_arp_hw_src(struct sk_buff *skb, int hdr_size)
 {
@@ -166,7 +166,7 @@ static uint8_t *batadv_arp_hw_src(struct sk_buff *skb, int hdr_size)
  * @skb: ARP packet
  * @hdr_size: size of the possible header before the ARP packet
  *
- * Returns the value of the ip_src field in the ARP packet
+ * Returns the value of the ip_src field in the ARP packet.
  */
 static __be32 batadv_arp_ip_src(struct sk_buff *skb, int hdr_size)
 {
@@ -178,7 +178,7 @@ static __be32 batadv_arp_ip_src(struct sk_buff *skb, int hdr_size)
  * @skb: ARP packet
  * @hdr_size: size of the possible header before the ARP packet
  *
- * Returns the value of the hw_dst field in the ARP packet
+ * Returns the value of the hw_dst field in the ARP packet.
  */
 static uint8_t *batadv_arp_hw_dst(struct sk_buff *skb, int hdr_size)
 {
@@ -190,7 +190,7 @@ static uint8_t *batadv_arp_hw_dst(struct sk_buff *skb, int hdr_size)
  * @skb: ARP packet
  * @hdr_size: size of the possible header before the ARP packet
  *
- * Returns the value of the ip_dst field in the ARP packet
+ * Returns the value of the ip_dst field in the ARP packet.
  */
 static __be32 batadv_arp_ip_dst(struct sk_buff *skb, int hdr_size)
 {
@@ -202,7 +202,7 @@ static __be32 batadv_arp_ip_dst(struct sk_buff *skb, int hdr_size)
  * @data: data to hash
  * @size: size of the hash table
  *
- * Returns the selected index in the hash table for the given data
+ * Returns the selected index in the hash table for the given data.
  */
 static uint32_t batadv_hash_dat(const void *data, uint32_t size)
 {
@@ -224,12 +224,12 @@ static uint32_t batadv_hash_dat(const void *data, uint32_t size)
 }
 
 /**
- * batadv_dat_entry_hash_find - looks for a given dat_entry in the local hash
+ * batadv_dat_entry_hash_find - look for a given dat_entry in the local hash
  * table
  * @bat_priv: the bat priv with all the soft interface information
  * @ip: search key
  *
- * Returns the dat_entry if found, NULL otherwise
+ * Returns the dat_entry if found, NULL otherwise.
  */
 static struct batadv_dat_entry *
 batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip)
@@ -343,9 +343,6 @@ static void batadv_dbg_arp(struct batadv_priv *bat_priv, struct sk_buff *skb,
 	if (hdr_size == 0)
 		return;
 
-	/* if the ARP packet is encapsulated in a batman packet, let's print
-	 * some debug messages
-	 */
 	unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
 
 	switch (unicast_4addr_packet->u.header.packet_type) {
@@ -409,7 +406,8 @@ static void batadv_dbg_arp(struct batadv_priv *bat_priv, struct sk_buff *skb,
  * @candidate: orig_node under evaluation
  * @max_orig_node: last selected candidate
  *
- * Returns true if the node has been elected as next candidate or false othrwise
+ * Returns true if the node has been elected as next candidate or false
+ * otherwise.
  */
 static bool batadv_is_orig_node_eligible(struct batadv_dat_candidate *res,
 					 int select, batadv_dat_addr_t tmp_max,
@@ -472,7 +470,7 @@ static void batadv_choose_next_candidate(struct batadv_priv *bat_priv,
 	 */
 	cands[select].type = BATADV_DAT_CANDIDATE_NOT_FOUND;
 
-	/* iterate over the originator list and find the node with closest
+	/* iterate over the originator list and find the node with the closest
 	 * dat_address which has not been selected yet
 	 */
 	for (i = 0; i < hash->size; i++) {
@@ -480,7 +478,7 @@ static void batadv_choose_next_candidate(struct batadv_priv *bat_priv,
 
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			/* the dht space is a ring and addresses are unsigned */
+			/* the dht space is a ring using unsigned addresses */
 			tmp_max = BATADV_DAT_ADDR_MAX - orig_node->dat_addr +
 				  ip_key;
 
@@ -512,7 +510,7 @@ static void batadv_choose_next_candidate(struct batadv_priv *bat_priv,
 }
 
 /**
- * batadv_dat_select_candidates - selects the nodes which the DHT message has to
+ * batadv_dat_select_candidates - select the nodes which the DHT message has to
  * be sent to
  * @bat_priv: the bat priv with all the soft interface information
  * @ip_dst: ipv4 to look up in the DHT
@@ -521,7 +519,7 @@ static void batadv_choose_next_candidate(struct batadv_priv *bat_priv,
  * closest values (from the LEFT, with wrap around if needed) then the hash
  * value of the key. ip_dst is the key.
  *
- * Returns the candidate array of size BATADV_DAT_CANDIDATE_NUM
+ * Returns the candidate array of size BATADV_DAT_CANDIDATE_NUM.
  */
 static struct batadv_dat_candidate *
 batadv_dat_select_candidates(struct batadv_priv *bat_priv, __be32 ip_dst)
@@ -558,10 +556,11 @@ batadv_dat_select_candidates(struct batadv_priv *bat_priv, __be32 ip_dst)
  * @ip: the DHT key
  * @packet_subtype: unicast4addr packet subtype to use
  *
- * In this function the skb is copied by means of pskb_copy() and is sent as
- * unicast packet to each of the selected candidates
+ * This function copies the skb with pskb_copy() and is sent as unicast packet
+ * to each of the selected candidates.
  *
- * Returns true if the packet is sent to at least one candidate, false otherwise
+ * Returns true if the packet is sent to at least one candidate, false
+ * otherwise.
  */
 static bool batadv_dat_send_data(struct batadv_priv *bat_priv,
 				 struct sk_buff *skb, __be32 ip,
@@ -727,7 +726,7 @@ out:
  * @skb: packet to analyse
  * @hdr_size: size of the possible header before the ARP packet in the skb
  *
- * Returns the ARP type if the skb contains a valid ARP packet, 0 otherwise
+ * Returns the ARP type if the skb contains a valid ARP packet, 0 otherwise.
  */
 static uint16_t batadv_arp_get_type(struct batadv_priv *bat_priv,
 				    struct sk_buff *skb, int hdr_size)
@@ -754,9 +753,7 @@ static uint16_t batadv_arp_get_type(struct batadv_priv *bat_priv,
 
 	arphdr = (struct arphdr *)(skb->data + hdr_size + ETH_HLEN);
 
-	/* Check whether the ARP packet carries a valid
-	 * IP information
-	 */
+	/* check whether the ARP packet carries a valid IP information */
 	if (arphdr->ar_hrd != htons(ARPHRD_ETHER))
 		goto out;
 
@@ -784,7 +781,7 @@ static uint16_t batadv_arp_get_type(struct batadv_priv *bat_priv,
 	if (is_zero_ether_addr(hw_src) || is_multicast_ether_addr(hw_src))
 		goto out;
 
-	/* we don't care about the destination MAC address in ARP requests */
+	/* don't care about the destination MAC address in ARP requests */
 	if (arphdr->ar_op != htons(ARPOP_REQUEST)) {
 		hw_dst = batadv_arp_hw_dst(skb, hdr_size);
 		if (is_zero_ether_addr(hw_dst) ||
@@ -804,8 +801,8 @@ out:
  * @skb: packet to check
  *
  * Returns true if the message has been sent to the dht candidates, false
- * otherwise. In case of true the message has to be enqueued to permit the
- * fallback
+ * otherwise. In case of a positive return value the message has to be enqueued
+ * to permit the fallback.
  */
 bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 					   struct sk_buff *skb)
@@ -867,7 +864,7 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 		batadv_dbg(BATADV_DBG_DAT, bat_priv, "ARP request replied locally\n");
 		ret = true;
 	} else {
-		/* Send the request on the DHT */
+		/* Send the request to the DHT */
 		ret = batadv_dat_send_data(bat_priv, skb, ip_dst,
 					   BATADV_P_DAT_DHT_GET);
 	}
@@ -884,7 +881,7 @@ out:
  * @skb: packet to check
  * @hdr_size: size of the encapsulation header
  *
- * Returns true if the request has been answered, false otherwise
+ * Returns true if the request has been answered, false otherwise.
  */
 bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 					   struct sk_buff *skb, int hdr_size)
@@ -924,10 +921,9 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	if (!skb_new)
 		goto out;
 
-	/* to preserve backwards compatibility, here the node has to answer
-	 * using the same packet type it received for the request. This is due
-	 * to that if a node is not using the 4addr packet format it may not
-	 * support it.
+	/* To preserve backwards compatibility, the node has choose the outgoing
+	 * format based on the incoming request packet type. The assumption is
+	 * that a node not using the 4addr packet format doesn't support it.
 	 */
 	if (hdr_size == sizeof(struct batadv_unicast_4addr_packet))
 		err = batadv_unicast_4addr_send_skb(bat_priv, skb_new,
@@ -977,7 +973,7 @@ void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
 	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst);
 
 	/* Send the ARP reply to the candidates for both the IP addresses that
-	 * the node got within the ARP reply
+	 * the node obtained from the ARP reply
 	 */
 	batadv_dat_send_data(bat_priv, skb, ip_src, BATADV_P_DAT_DHT_PUT);
 	batadv_dat_send_data(bat_priv, skb, ip_dst, BATADV_P_DAT_DHT_PUT);
@@ -987,7 +983,7 @@ void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
  * DAT storage only
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: packet to check
- * @hdr_size: siaze of the encapsulation header
+ * @hdr_size: size of the encapsulation header
  */
 bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
 					 struct sk_buff *skb, int hdr_size)
@@ -1031,11 +1027,11 @@ out:
 
 /**
  * batadv_dat_drop_broadcast_packet - check if an ARP request has to be dropped
- * (because the node has already got the reply via DAT) or not
+ * (because the node has already obtained the reply via DAT) or not
  * @bat_priv: the bat priv with all the soft interface information
  * @forw_packet: the broadcast packet
  *
- * Returns true if the node can drop the packet, false otherwise
+ * Returns true if the node can drop the packet, false otherwise.
  */
 bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
 				      struct batadv_forw_packet *forw_packet)
-- 
cgit v0.10.2


From 863dd7a82a2fba3e1a094c3d10a9cc8d1afd10d6 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 25 Mar 2013 13:49:46 +0100
Subject: batman-adv: drop useless argument seqno in neighbor creation

the sequence number is not stored in struct neigh_node,
therefore there is no need to pass such value to the
neigh_node creation procedure.

At the moment the value is only used by a debug message, but
given the fact that the seqno is not related to the neighbor
object, it is better to print it elsewhere.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 071f288..da239c5 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -33,12 +33,11 @@ static struct batadv_neigh_node *
 batadv_iv_ogm_neigh_new(struct batadv_hard_iface *hard_iface,
 			const uint8_t *neigh_addr,
 			struct batadv_orig_node *orig_node,
-			struct batadv_orig_node *orig_neigh, __be32 seqno)
+			struct batadv_orig_node *orig_neigh)
 {
 	struct batadv_neigh_node *neigh_node;
 
-	neigh_node = batadv_neigh_node_new(hard_iface, neigh_addr,
-					   ntohl(seqno));
+	neigh_node = batadv_neigh_node_new(hard_iface, neigh_addr);
 	if (!neigh_node)
 		goto out;
 
@@ -696,8 +695,7 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 
 		neigh_node = batadv_iv_ogm_neigh_new(if_incoming,
 						     ethhdr->h_source,
-						     orig_node, orig_tmp,
-						     batadv_ogm_packet->seqno);
+						     orig_node, orig_tmp);
 
 		batadv_orig_node_free_ref(orig_tmp);
 		if (!neigh_node)
@@ -829,8 +827,7 @@ static int batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node,
 		neigh_node = batadv_iv_ogm_neigh_new(if_incoming,
 						     orig_neigh_node->orig,
 						     orig_neigh_node,
-						     orig_neigh_node,
-						     batadv_ogm_packet->seqno);
+						     orig_neigh_node);
 
 	if (!neigh_node)
 		goto out;
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index fad1a20..ddf5634 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -92,7 +92,7 @@ batadv_orig_node_get_router(struct batadv_orig_node *orig_node)
 
 struct batadv_neigh_node *
 batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
-		      const uint8_t *neigh_addr, uint32_t seqno)
+		      const uint8_t *neigh_addr)
 {
 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
 	struct batadv_neigh_node *neigh_node;
@@ -110,8 +110,7 @@ batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
 	atomic_set(&neigh_node->refcount, 2);
 
 	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-		   "Creating new neighbor %pM, initial seqno %d\n",
-		   neigh_addr, seqno);
+		   "Creating new neighbor %pM\n", neigh_addr);
 
 out:
 	return neigh_node;
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index 734e5a3..7887b84 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -31,7 +31,7 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 					      const uint8_t *addr);
 struct batadv_neigh_node *
 batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
-		      const uint8_t *neigh_addr, uint32_t seqno);
+		      const uint8_t *neigh_addr);
 void batadv_neigh_node_free_ref(struct batadv_neigh_node *neigh_node);
 struct batadv_neigh_node *
 batadv_orig_node_get_router(struct batadv_orig_node *orig_node);
-- 
cgit v0.10.2


From d1dc30739c587fe65f4120c045258ab01c79db1b Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 25 Mar 2013 13:54:45 +0100
Subject: batman-adv: slightly improve neighbor creation debug message

print the interface along with the new neighbor mac address

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index ddf5634..f50553a 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -110,7 +110,8 @@ batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
 	atomic_set(&neigh_node->refcount, 2);
 
 	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-		   "Creating new neighbor %pM\n", neigh_addr);
+		   "Creating new neighbor %pM on interface %s\n", neigh_addr,
+		   hard_iface->net_dev->name);
 
 out:
 	return neigh_node;
-- 
cgit v0.10.2


From 281581d3e79eaacfcdc0827e9bf990422252ba5c Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 25 Mar 2013 22:27:00 +0100
Subject: batman-adv: don't check the source address twice

The source address has already been checked in
batadv_check_management_packet() upon packet reception and
therefore it does not need to be checked again in
ogm_process()

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index da239c5..6d62e29 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -988,7 +988,7 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 	struct batadv_neigh_node *orig_neigh_router = NULL;
 	int has_directlink_flag;
 	int is_my_addr = 0, is_my_orig = 0, is_my_oldorig = 0;
-	int is_broadcast = 0, is_bidirect;
+	int is_bidirect;
 	bool is_single_hop_neigh = false;
 	bool is_from_best_next_hop = false;
 	int is_duplicate, sameseq, simlar_ttl;
@@ -1051,9 +1051,6 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 		if (batadv_compare_eth(batadv_ogm_packet->prev_sender,
 				       hard_iface->net_dev->dev_addr))
 			is_my_oldorig = 1;
-
-		if (is_broadcast_ether_addr(ethhdr->h_source))
-			is_broadcast = 1;
 	}
 	rcu_read_unlock();
 
@@ -1071,13 +1068,6 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 		return;
 	}
 
-	if (is_broadcast) {
-		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "Drop packet: ignoring all packets with broadcast source addr (sender: %pM)\n",
-			   ethhdr->h_source);
-		return;
-	}
-
 	if (is_my_orig) {
 		unsigned long *word;
 		int offset;
-- 
cgit v0.10.2


From a3b81b67de6ae0475c0c34c552c059f7bea2f520 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Thu, 28 Mar 2013 14:21:12 +0100
Subject: batman-adv: don't check compat version twice

Compatibility version is checked upon packet reception
before calling any handler. For this reason it does need to
be checked once more in the handler itself.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 6d62e29..38183dc 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -1054,13 +1054,6 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 	}
 	rcu_read_unlock();
 
-	if (batadv_ogm_packet->header.version != BATADV_COMPAT_VERSION) {
-		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "Drop packet: incompatible batman version (%i)\n",
-			   batadv_ogm_packet->header.version);
-		return;
-	}
-
 	if (is_my_addr) {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
 			   "Drop packet: received my own broadcast (sender: %pM)\n",
-- 
cgit v0.10.2


From 38dc40ef52d882e08b2af71fc1b5413ac7009952 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Sat, 30 Mar 2013 17:22:00 +0100
Subject: batman-adv: do not silently ignore wrong condition

Only one neigh_node per orig_node should match a given
neighbor address, therefore, if more than one matching
neigh_node is found, a WARNING has to be triggered to let
the user know that something is wrong in the originator
state instead of silently skipping the error.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 38183dc..bd50e0d 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -669,7 +669,7 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 		if (batadv_compare_eth(neigh_addr, ethhdr->h_source) &&
 		    tmp_neigh_node->if_incoming == if_incoming &&
 		    atomic_inc_not_zero(&tmp_neigh_node->refcount)) {
-			if (neigh_node)
+			if (WARN(neigh_node, "too many matching neigh_nodes"))
 				batadv_neigh_node_free_ref(neigh_node);
 			neigh_node = tmp_neigh_node;
 			continue;
-- 
cgit v0.10.2


From 7db3fc291bb22bf43667b009dd0e701ed4eb7c96 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 2 Apr 2013 12:16:53 +0200
Subject: batman-adv: don't initialise batman_iv private members in
 hard-interface.c

hard-interface.c has to do not contain any routing algorithm
specific code.

Allocate the hard-interface with kzalloc() and remove any
useless and algorithm specific member initialisation

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 4a76ed6..c478e6b 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -577,7 +577,7 @@ batadv_hardif_add_interface(struct net_device *net_dev)
 
 	dev_hold(net_dev);
 
-	hard_iface = kmalloc(sizeof(*hard_iface), GFP_ATOMIC);
+	hard_iface = kzalloc(sizeof(*hard_iface), GFP_ATOMIC);
 	if (!hard_iface)
 		goto release_dev;
 
@@ -603,12 +603,6 @@ batadv_hardif_add_interface(struct net_device *net_dev)
 	batadv_check_known_mac_addr(hard_iface->net_dev);
 	list_add_tail_rcu(&hard_iface->list, &batadv_hardif_list);
 
-	/* This can't be called via a bat_priv callback because
-	 * we have no bat_priv yet.
-	 */
-	atomic_set(&hard_iface->bat_iv.ogm_seqno, 1);
-	hard_iface->bat_iv.ogm_buff = NULL;
-
 	return hard_iface;
 
 free_if:
-- 
cgit v0.10.2


From 7ed4be9523455a061e62236dc3caa9211cd7edda Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Mon, 8 Apr 2013 15:08:18 +0200
Subject: batman-adv: use eth_hdr() when it makes sense

Instead of casting the result of skb_mac_header() to
"struct ethhdr *" every time, the eth_hdr inline function
can be use to beautify the code and improve its readability.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index bd50e0d..ef41be4 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -1268,7 +1268,7 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb,
 			   skb->len + ETH_HLEN);
 
 	packet_len = skb_headlen(skb);
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 	packet_buff = skb->data;
 	batadv_ogm_packet = (struct batadv_ogm_packet *)packet_buff;
 
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 379061c..082189e 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -864,7 +864,7 @@ static int batadv_bla_process_claim(struct batadv_priv *bat_priv,
 	short vid = -1;
 	int ret;
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	if (ntohs(ethhdr->h_proto) == ETH_P_8021Q) {
 		vhdr = (struct vlan_ethhdr *)ethhdr;
@@ -885,7 +885,7 @@ static int batadv_bla_process_claim(struct batadv_priv *bat_priv,
 		return 0;
 
 	/* pskb_may_pull() may have modified the pointers, get ethhdr again */
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 	arphdr = (struct arphdr *)((uint8_t *)ethhdr + headlen);
 
 	/* Check whether the ARP frame carries a valid
@@ -1432,7 +1432,7 @@ int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid,
 	struct batadv_hard_iface *primary_if;
 	int ret;
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 	if (!primary_if)
@@ -1539,7 +1539,7 @@ int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid)
 	if (batadv_bla_process_claim(bat_priv, primary_if, skb))
 		goto handled;
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	if (unlikely(atomic_read(&bat_priv->bla.num_requests)))
 		/* don't allow broadcasts while requests are in flight */
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index e84629e..0787a34 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -1245,7 +1245,7 @@ static void batadv_nc_skb_store_before_coding(struct batadv_priv *bat_priv,
 		return;
 
 	/* Set the mac header as if we actually sent the packet uncoded */
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 	memcpy(ethhdr->h_source, ethhdr->h_dest, ETH_ALEN);
 	memcpy(ethhdr->h_dest, eth_dst_new, ETH_ALEN);
 
@@ -1423,7 +1423,7 @@ void batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
 {
 	struct batadv_unicast_packet *packet;
 	struct batadv_nc_path *nc_path;
-	struct ethhdr *ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	struct ethhdr *ethhdr = eth_hdr(skb);
 	__be32 packet_id;
 	u8 *payload;
 
@@ -1482,7 +1482,7 @@ out:
 void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
 					 struct sk_buff *skb)
 {
-	struct ethhdr *ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	struct ethhdr *ethhdr = eth_hdr(skb);
 
 	if (batadv_is_my_mac(bat_priv, ethhdr->h_dest))
 		return;
@@ -1533,7 +1533,7 @@ batadv_nc_skb_decode_packet(struct batadv_priv *bat_priv, struct sk_buff *skb,
 	skb_reset_network_header(skb);
 
 	/* Reconstruct original mac header */
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 	memcpy(ethhdr, &ethhdr_tmp, sizeof(*ethhdr));
 
 	/* Select the correct unicast header information based on the location
@@ -1677,7 +1677,7 @@ static int batadv_nc_recv_coded_packet(struct sk_buff *skb,
 		return NET_RX_DROP;
 
 	coded_packet = (struct batadv_coded_packet *)skb->data;
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	/* Verify frame is destined for us */
 	if (!batadv_is_my_mac(bat_priv, ethhdr->h_dest) &&
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index b27a4d7..beeab2e 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -256,7 +256,7 @@ bool batadv_check_management_packet(struct sk_buff *skb,
 	if (unlikely(!pskb_may_pull(skb, header_len)))
 		return false;
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	/* packet with broadcast indication but unicast recipient */
 	if (!is_broadcast_ether_addr(ethhdr->h_dest))
@@ -392,7 +392,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	if (unlikely(!pskb_may_pull(skb, hdr_size)))
 		goto out;
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	/* packet with unicast indication but broadcast recipient */
 	if (is_broadcast_ether_addr(ethhdr->h_dest))
@@ -569,7 +569,7 @@ static int batadv_check_unicast_packet(struct batadv_priv *bat_priv,
 	if (unlikely(!pskb_may_pull(skb, hdr_size)))
 		return -ENODATA;
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	/* packet with unicast indication but broadcast recipient */
 	if (is_broadcast_ether_addr(ethhdr->h_dest))
@@ -803,7 +803,7 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 	struct batadv_orig_node *orig_node = NULL;
 	struct batadv_neigh_node *neigh_node = NULL;
 	struct batadv_unicast_packet *unicast_packet;
-	struct ethhdr *ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	struct ethhdr *ethhdr = eth_hdr(skb);
 	int ret = NET_RX_DROP;
 	struct sk_buff *new_skb;
 
@@ -1165,7 +1165,7 @@ int batadv_recv_bcast_packet(struct sk_buff *skb,
 	if (unlikely(!pskb_may_pull(skb, hdr_size)))
 		goto out;
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	/* packet with broadcast indication but unicast recipient */
 	if (!is_broadcast_ether_addr(ethhdr->h_dest))
@@ -1265,7 +1265,7 @@ int batadv_recv_vis_packet(struct sk_buff *skb,
 		return NET_RX_DROP;
 
 	vis_packet = (struct batadv_vis_packet *)skb->data;
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	/* not for me */
 	if (!batadv_is_my_mac(bat_priv, ethhdr->h_dest))
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index eb16b04..ed7072a 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -61,7 +61,7 @@ int batadv_send_skb_packet(struct sk_buff *skb,
 
 	skb_reset_mac_header(skb);
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 	memcpy(ethhdr->h_source, hard_iface->net_dev->dev_addr, ETH_ALEN);
 	memcpy(ethhdr->h_dest, dst_addr, ETH_ALEN);
 	ethhdr->h_proto = __constant_htons(ETH_P_BATMAN);
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 819dfb0..b26a6cd 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -316,7 +316,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
 	skb_pull_rcsum(skb, hdr_size);
 	skb_reset_mac_header(skb);
 
-	ethhdr = (struct ethhdr *)skb_mac_header(skb);
+	ethhdr = eth_hdr(skb);
 
 	switch (ntohs(ethhdr->h_proto)) {
 	case ETH_P_8021Q:
-- 
cgit v0.10.2


From 24a5deeb8a198f0a26ae04485d9976c5e414f723 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Mon, 8 Apr 2013 09:38:12 +0200
Subject: batman-adv: move ring_buffer helper functions in bat_iv_ogm

the two lonely ring_buffer helper functions are used by the
bat_iv_ogm module only and therefore they can be moved
inside it.

Reported-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index acbac2a..489bb36 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -32,7 +32,6 @@ batman-adv-y += icmp_socket.o
 batman-adv-y += main.o
 batman-adv-$(CONFIG_BATMAN_ADV_NC) += network-coding.o
 batman-adv-y += originator.o
-batman-adv-y += ring_buffer.o
 batman-adv-y += routing.o
 batman-adv-y += send.o
 batman-adv-y += soft-interface.o
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index ef41be4..31c2891 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -19,7 +19,6 @@
 
 #include "main.h"
 #include "translation-table.h"
-#include "ring_buffer.h"
 #include "originator.h"
 #include "routing.h"
 #include "gateway_common.h"
@@ -29,6 +28,48 @@
 #include "bat_algo.h"
 #include "network-coding.h"
 
+/**
+ * batadv_ring_buffer_set - update the ring buffer with the given value
+ * @lq_recv: pointer to the ring buffer
+ * @lq_index: index to store the value at
+ * @value: value to store in the ring buffer
+ */
+static void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
+				   uint8_t value)
+{
+	lq_recv[*lq_index] = value;
+	*lq_index = (*lq_index + 1) % BATADV_TQ_GLOBAL_WINDOW_SIZE;
+}
+
+/**
+ * batadv_ring_buffer_set - compute the average of all non-zero values stored
+ * in the given ring buffer
+ * @lq_recv: pointer to the ring buffer
+ *
+ * Returns computed average value.
+ */
+static uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[])
+{
+	const uint8_t *ptr;
+	uint16_t count = 0, i = 0, sum = 0;
+
+	ptr = lq_recv;
+
+	while (i < BATADV_TQ_GLOBAL_WINDOW_SIZE) {
+		if (*ptr != 0) {
+			count++;
+			sum += *ptr;
+		}
+
+		i++;
+		ptr++;
+	}
+
+	if (count == 0)
+		return 0;
+
+	return (uint8_t)(sum / count);
+}
 static struct batadv_neigh_node *
 batadv_iv_ogm_neigh_new(struct batadv_hard_iface *hard_iface,
 			const uint8_t *neigh_addr,
diff --git a/net/batman-adv/ring_buffer.c b/net/batman-adv/ring_buffer.c
deleted file mode 100644
index ccab0bb..0000000
--- a/net/batman-adv/ring_buffer.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#include "main.h"
-#include "ring_buffer.h"
-
-void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
-			    uint8_t value)
-{
-	lq_recv[*lq_index] = value;
-	*lq_index = (*lq_index + 1) % BATADV_TQ_GLOBAL_WINDOW_SIZE;
-}
-
-uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[])
-{
-	const uint8_t *ptr;
-	uint16_t count = 0, i = 0, sum = 0;
-
-	ptr = lq_recv;
-
-	while (i < BATADV_TQ_GLOBAL_WINDOW_SIZE) {
-		if (*ptr != 0) {
-			count++;
-			sum += *ptr;
-		}
-
-		i++;
-		ptr++;
-	}
-
-	if (count == 0)
-		return 0;
-
-	return (uint8_t)(sum / count);
-}
diff --git a/net/batman-adv/ring_buffer.h b/net/batman-adv/ring_buffer.h
deleted file mode 100644
index 3f92ae2..0000000
--- a/net/batman-adv/ring_buffer.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#ifndef _NET_BATMAN_ADV_RING_BUFFER_H_
-#define _NET_BATMAN_ADV_RING_BUFFER_H_
-
-void batadv_ring_buffer_set(uint8_t lq_recv[], uint8_t *lq_index,
-			    uint8_t value);
-uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[]);
-
-#endif /* _NET_BATMAN_ADV_RING_BUFFER_H_ */
-- 
cgit v0.10.2


From d98966173213704873864c4e5057d823996ae95d Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Wed, 17 Apr 2013 17:44:43 +0200
Subject: batman-adv: move batadv_slide_own_bcast_window to bat_iv_ogm.c

batadv_slide_own_bcast_window() is used only in bat_iv_ogm.c
and it is currently touching only batman_iv specific
attributes.

Move it into bat_iv_ogm.c and make it static.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 31c2891..42b7a94 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -630,6 +630,41 @@ static void batadv_iv_ogm_forward(struct batadv_orig_node *orig_node,
 				if_incoming, 0, batadv_iv_ogm_fwd_send_time());
 }
 
+/**
+ * batadv_iv_ogm_slide_own_bcast_window - bitshift own OGM broadcast windows for
+ * the given interface
+ * @hard_iface: the interface for which the windows have to be shifted
+ */
+static void
+batadv_iv_ogm_slide_own_bcast_window(struct batadv_hard_iface *hard_iface)
+{
+	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
+	struct batadv_hashtable *hash = bat_priv->orig_hash;
+	struct hlist_head *head;
+	struct batadv_orig_node *orig_node;
+	unsigned long *word;
+	uint32_t i;
+	size_t word_index;
+	uint8_t *w;
+
+	for (i = 0; i < hash->size; i++) {
+		head = &hash->table[i];
+
+		rcu_read_lock();
+		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
+			spin_lock_bh(&orig_node->ogm_cnt_lock);
+			word_index = hard_iface->if_num * BATADV_NUM_WORDS;
+			word = &(orig_node->bcast_own[word_index]);
+
+			batadv_bit_get_packet(bat_priv, word, 1, 0);
+			w = &orig_node->bcast_own_sum[hard_iface->if_num];
+			*w = bitmap_weight(word, BATADV_TQ_LOCAL_WINDOW_SIZE);
+			spin_unlock_bh(&orig_node->ogm_cnt_lock);
+		}
+		rcu_read_unlock();
+	}
+}
+
 static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
@@ -674,7 +709,7 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 		batadv_ogm_packet->gw_flags = BATADV_NO_FLAGS;
 	}
 
-	batadv_slide_own_bcast_window(hard_iface);
+	batadv_iv_ogm_slide_own_bcast_window(hard_iface);
 	batadv_iv_ogm_queue_add(bat_priv, hard_iface->bat_iv.ogm_buff,
 				hard_iface->bat_iv.ogm_buff_len, hard_iface, 1,
 				batadv_iv_ogm_emit_send_time(bat_priv));
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index beeab2e..fad0846 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -34,35 +34,6 @@
 static int batadv_route_unicast_packet(struct sk_buff *skb,
 				       struct batadv_hard_iface *recv_if);
 
-void batadv_slide_own_bcast_window(struct batadv_hard_iface *hard_iface)
-{
-	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
-	struct batadv_hashtable *hash = bat_priv->orig_hash;
-	struct hlist_head *head;
-	struct batadv_orig_node *orig_node;
-	unsigned long *word;
-	uint32_t i;
-	size_t word_index;
-	uint8_t *w;
-
-	for (i = 0; i < hash->size; i++) {
-		head = &hash->table[i];
-
-		rcu_read_lock();
-		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			spin_lock_bh(&orig_node->ogm_cnt_lock);
-			word_index = hard_iface->if_num * BATADV_NUM_WORDS;
-			word = &(orig_node->bcast_own[word_index]);
-
-			batadv_bit_get_packet(bat_priv, word, 1, 0);
-			w = &orig_node->bcast_own_sum[hard_iface->if_num];
-			*w = bitmap_weight(word, BATADV_TQ_LOCAL_WINDOW_SIZE);
-			spin_unlock_bh(&orig_node->ogm_cnt_lock);
-		}
-		rcu_read_unlock();
-	}
-}
-
 static void _batadv_update_route(struct batadv_priv *bat_priv,
 				 struct batadv_orig_node *orig_node,
 				 struct batadv_neigh_node *neigh_node)
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index 99eeafa..72a29bd 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -20,7 +20,6 @@
 #ifndef _NET_BATMAN_ADV_ROUTING_H_
 #define _NET_BATMAN_ADV_ROUTING_H_
 
-void batadv_slide_own_bcast_window(struct batadv_hard_iface *hard_iface);
 bool batadv_check_management_packet(struct sk_buff *skb,
 				    struct batadv_hard_iface *hard_iface,
 				    int header_len);
-- 
cgit v0.10.2


From 3abe4adbfb293e37d2d6f4fe22366534dc2675d9 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Wed, 3 Apr 2013 11:15:33 +0200
Subject: batman-adv: refactor batadv_tt_local_event()

Instead of passing a generic combination of flags as
argument, it is easier to pass the entire tt_common
structure (containing the flags already set) plus a
bitfield of event flags that will be unified with
the already existing ones before inserting the client
in the event queue.
In this way invocations of the modified function can be
simplified.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 9e87485..d35b739 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -163,10 +163,19 @@ batadv_tt_orig_list_entry_free_ref(struct batadv_tt_orig_list_entry *orig_entry)
 	call_rcu(&orig_entry->rcu, batadv_tt_orig_list_entry_free_rcu);
 }
 
+/**
+ * batadv_tt_local_event - store a local TT event (ADD/DEL)
+ * @bat_priv: the bat priv with all the soft interface information
+ * @tt_local_entry: the TT entry involved in the event
+ * @event_flags: flags to store in the event structure
+ */
 static void batadv_tt_local_event(struct batadv_priv *bat_priv,
-				  const uint8_t *addr, uint8_t flags)
+				  struct batadv_tt_local_entry *tt_local_entry,
+				  uint8_t event_flags)
 {
 	struct batadv_tt_change_node *tt_change_node, *entry, *safe;
+	struct batadv_tt_common_entry *common = &tt_local_entry->common;
+	uint8_t flags = common->flags | event_flags;
 	bool event_removed = false;
 	bool del_op_requested, del_op_entry;
 
@@ -176,7 +185,7 @@ static void batadv_tt_local_event(struct batadv_priv *bat_priv,
 		return;
 
 	tt_change_node->change.flags = flags;
-	memcpy(tt_change_node->change.addr, addr, ETH_ALEN);
+	memcpy(tt_change_node->change.addr, common->addr, ETH_ALEN);
 
 	del_op_requested = flags & BATADV_TT_CLIENT_DEL;
 
@@ -184,7 +193,7 @@ static void batadv_tt_local_event(struct batadv_priv *bat_priv,
 	spin_lock_bh(&bat_priv->tt.changes_list_lock);
 	list_for_each_entry_safe(entry, safe, &bat_priv->tt.changes_list,
 				 list) {
-		if (!batadv_compare_eth(entry->change.addr, addr))
+		if (!batadv_compare_eth(entry->change.addr, common->addr))
 			continue;
 
 		/* DEL+ADD in the same orig interval have no effect and can be
@@ -332,7 +341,7 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 	}
 
 add_event:
-	batadv_tt_local_event(bat_priv, addr, tt_local->common.flags);
+	batadv_tt_local_event(bat_priv, tt_local, BATADV_NO_FLAGS);
 
 check_roaming:
 	/* Check whether it is a roaming, but don't do anything if the roaming
@@ -529,8 +538,7 @@ batadv_tt_local_set_pending(struct batadv_priv *bat_priv,
 			    struct batadv_tt_local_entry *tt_local_entry,
 			    uint16_t flags, const char *message)
 {
-	batadv_tt_local_event(bat_priv, tt_local_entry->common.addr,
-			      tt_local_entry->common.flags | flags);
+	batadv_tt_local_event(bat_priv, tt_local_entry, flags);
 
 	/* The local client has to be marked as "pending to be removed" but has
 	 * to be kept in the table in order to send it in a full table
@@ -584,8 +592,7 @@ uint16_t batadv_tt_local_remove(struct batadv_priv *bat_priv,
 	/* if this client has been added right now, it is possible to
 	 * immediately purge it
 	 */
-	batadv_tt_local_event(bat_priv, tt_local_entry->common.addr,
-			      curr_flags | BATADV_TT_CLIENT_DEL);
+	batadv_tt_local_event(bat_priv, tt_local_entry, BATADV_TT_CLIENT_DEL);
 	hlist_del_rcu(&tt_local_entry->common.hash_entry);
 	batadv_tt_local_entry_free_ref(tt_local_entry);
 
-- 
cgit v0.10.2


From 41ab6c4891ed4cdd855ae569924acb1da424a614 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Tue, 2 Apr 2013 22:28:44 +0200
Subject: batman-adv: don't deal with NET_IP_ALIGN manually

Instead of dealing with NET_IP_ALIGN during allocation and
headroom reservation, it is possible to use
netdev_alloc_skb_ip_align() which transparently allocate
and reserve the correct amount of data

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 42b7a94..5b0a043 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -453,16 +453,16 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
 	else
 		skb_size = packet_len;
 
-	skb_size += ETH_HLEN + NET_IP_ALIGN;
+	skb_size += ETH_HLEN;
 
-	forw_packet_aggr->skb = dev_alloc_skb(skb_size);
+	forw_packet_aggr->skb = netdev_alloc_skb_ip_align(NULL, skb_size);
 	if (!forw_packet_aggr->skb) {
 		if (!own_packet)
 			atomic_inc(&bat_priv->batman_queue_left);
 		kfree(forw_packet_aggr);
 		goto out;
 	}
-	skb_reserve(forw_packet_aggr->skb, ETH_HLEN + NET_IP_ALIGN);
+	skb_reserve(forw_packet_aggr->skb, ETH_HLEN);
 
 	INIT_HLIST_NODE(&forw_packet_aggr->list);
 
diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index 0ba6c89..b27508b 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -177,13 +177,13 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 	if (len >= sizeof(struct batadv_icmp_packet_rr))
 		packet_len = sizeof(struct batadv_icmp_packet_rr);
 
-	skb = dev_alloc_skb(packet_len + ETH_HLEN + NET_IP_ALIGN);
+	skb = netdev_alloc_skb_ip_align(NULL, packet_len + ETH_HLEN);
 	if (!skb) {
 		len = -ENOMEM;
 		goto out;
 	}
 
-	skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+	skb_reserve(skb, ETH_HLEN);
 	icmp_packet = (struct batadv_icmp_packet_rr *)skb_put(skb, packet_len);
 
 	if (copy_from_user(icmp_packet, buff, packet_len)) {
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index d35b739..52808c4 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1607,11 +1607,11 @@ batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
 	tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
 	len = tt_query_size + tt_len;
-	skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
+	skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
 	if (!skb)
 		goto out;
 
-	skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+	skb_reserve(skb, ETH_HLEN);
 	tt_response = (struct batadv_tt_query_packet *)skb_put(skb, len);
 	tt_response->ttvn = ttvn;
 
@@ -1672,11 +1672,11 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 	if (!tt_req_node)
 		goto out;
 
-	skb = dev_alloc_skb(sizeof(*tt_request) + ETH_HLEN + NET_IP_ALIGN);
+	skb = netdev_alloc_skb_ip_align(NULL, sizeof(*tt_request) + ETH_HLEN);
 	if (!skb)
 		goto out;
 
-	skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+	skb_reserve(skb, ETH_HLEN);
 
 	tt_req_len = sizeof(*tt_request);
 	tt_request = (struct batadv_tt_query_packet *)skb_put(skb, tt_req_len);
@@ -1769,11 +1769,11 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 		tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
 		len = sizeof(*tt_response) + tt_len;
-		skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
+		skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
 		if (!skb)
 			goto unlock;
 
-		skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+		skb_reserve(skb, ETH_HLEN);
 		packet_pos = skb_put(skb, len);
 		tt_response = (struct batadv_tt_query_packet *)packet_pos;
 		tt_response->ttvn = req_ttvn;
@@ -1885,11 +1885,11 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 		tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
 		len = sizeof(*tt_response) + tt_len;
-		skb = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
+		skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
 		if (!skb)
 			goto unlock;
 
-		skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+		skb_reserve(skb, ETH_HLEN);
 		packet_pos = skb_put(skb, len);
 		tt_response = (struct batadv_tt_query_packet *)packet_pos;
 		tt_response->ttvn = req_ttvn;
@@ -2219,11 +2219,11 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 	if (!batadv_tt_check_roam_count(bat_priv, client))
 		goto out;
 
-	skb = dev_alloc_skb(sizeof(*roam_adv_packet) + ETH_HLEN + NET_IP_ALIGN);
+	skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
 	if (!skb)
 		goto out;
 
-	skb_reserve(skb, ETH_HLEN + NET_IP_ALIGN);
+	skb_reserve(skb, ETH_HLEN);
 
 	roam_adv_packet = (struct batadv_roam_adv_packet *)skb_put(skb, len);
 
diff --git a/net/batman-adv/vis.c b/net/batman-adv/vis.c
index 1625e57..94eaeb5 100644
--- a/net/batman-adv/vis.c
+++ b/net/batman-adv/vis.c
@@ -392,12 +392,12 @@ batadv_add_packet(struct batadv_priv *bat_priv,
 		return NULL;
 
 	len = sizeof(*packet) + vis_info_len;
-	info->skb_packet = dev_alloc_skb(len + ETH_HLEN + NET_IP_ALIGN);
+	info->skb_packet = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
 	if (!info->skb_packet) {
 		kfree(info);
 		return NULL;
 	}
-	skb_reserve(info->skb_packet, ETH_HLEN + NET_IP_ALIGN);
+	skb_reserve(info->skb_packet, ETH_HLEN);
 	packet = (struct batadv_vis_packet *)skb_put(info->skb_packet, len);
 
 	kref_init(&info->refcount);
@@ -854,13 +854,13 @@ int batadv_vis_init(struct batadv_priv *bat_priv)
 	if (!bat_priv->vis.my_info)
 		goto err;
 
-	len = sizeof(*packet) + BATADV_MAX_VIS_PACKET_SIZE;
-	len += ETH_HLEN + NET_IP_ALIGN;
-	bat_priv->vis.my_info->skb_packet = dev_alloc_skb(len);
+	len = sizeof(*packet) + BATADV_MAX_VIS_PACKET_SIZE + ETH_HLEN;
+	bat_priv->vis.my_info->skb_packet = netdev_alloc_skb_ip_align(NULL,
+								      len);
 	if (!bat_priv->vis.my_info->skb_packet)
 		goto free_info;
 
-	skb_reserve(bat_priv->vis.my_info->skb_packet, ETH_HLEN + NET_IP_ALIGN);
+	skb_reserve(bat_priv->vis.my_info->skb_packet, ETH_HLEN);
 	tmp_skb = bat_priv->vis.my_info->skb_packet;
 	packet = (struct batadv_vis_packet *)skb_put(tmp_skb, sizeof(*packet));
 
-- 
cgit v0.10.2


From d4ff40f683221d46c351cd9ab61f37a6ea5d2444 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Thu, 18 Apr 2013 15:13:01 +0200
Subject: batman-adv: pass a 16bit long flag argument to tt_global_add()

it may be the case that we want to store some local TT client flags in a global
entry, therefore the tt_global_add needs to get a proper argument for this

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 52808c4..e272f68 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -798,10 +798,25 @@ out:
 		batadv_tt_orig_list_entry_free_ref(orig_entry);
 }
 
-/* caller must hold orig_node refcount */
+/**
+ * batadv_tt_global_add - add a new TT global entry or update an existing one
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: the originator announcing the client
+ * @tt_addr: the mac address of the non-mesh client
+ * @flags: TT flags that have to be set for this non-mesh client
+ * @ttvn: the tt version number ever announcing this non-mesh client
+ *
+ * Add a new TT global entry for the given originator. If the entry already
+ * exists add a new reference to the given originator (a global entry can have
+ * references to multiple originators) and adjust the flags attribute to reflect
+ * the function argument.
+ * If a TT local entry exists for this non-mesh client remove it.
+ *
+ * The caller must hold orig_node refcount.
+ */
 int batadv_tt_global_add(struct batadv_priv *bat_priv,
 			 struct batadv_orig_node *orig_node,
-			 const unsigned char *tt_addr, uint8_t flags,
+			 const unsigned char *tt_addr, uint16_t flags,
 			 uint8_t ttvn)
 {
 	struct batadv_tt_global_entry *tt_global_entry;
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index ab8e683..659a3bb 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -33,7 +33,7 @@ void batadv_tt_global_add_orig(struct batadv_priv *bat_priv,
 			       const unsigned char *tt_buff, int tt_buff_len);
 int batadv_tt_global_add(struct batadv_priv *bat_priv,
 			 struct batadv_orig_node *orig_node,
-			 const unsigned char *addr, uint8_t flags,
+			 const unsigned char *addr, uint16_t flags,
 			 uint8_t ttvn);
 int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset);
 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
-- 
cgit v0.10.2


From e54c77f08ec62434ac8b24e402aa7b787cf42198 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Linus=20L=C3=BCssing?= <linus.luessing@web.de>
Date: Fri, 19 Apr 2013 12:06:56 +0200
Subject: batman-adv: Remove unnecessary INIT_HLIST_NODE() calls
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There's no need to for an explicit hlist_node initialization if it is
added to a list right away, like it's the case with the
hlist_add_head()s here.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 5b0a043..d07323b 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -464,8 +464,6 @@ static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
 	}
 	skb_reserve(forw_packet_aggr->skb, ETH_HLEN);
 
-	INIT_HLIST_NODE(&forw_packet_aggr->list);
-
 	skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
 	forw_packet_aggr->packet_len = packet_len;
 	memcpy(skb_buff, packet_buff, packet_len);
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index ed7072a..ce69f45 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -152,8 +152,6 @@ _batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
 				 struct batadv_forw_packet *forw_packet,
 				 unsigned long send_time)
 {
-	INIT_HLIST_NODE(&forw_packet->list);
-
 	/* add new packet to packet list */
 	spin_lock_bh(&bat_priv->forw_bcast_list_lock);
 	hlist_add_head(&forw_packet->list, &bat_priv->forw_bcast_list);
-- 
cgit v0.10.2


From aa27c31265f111ff73d948a5846a3f193376491e Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Thu, 18 Apr 2013 04:56:03 +0800
Subject: batman-adv: do not print orig nodes without nc neighbors on nc table
 print

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 0787a34..22cd51f 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -1763,6 +1763,13 @@ int batadv_nc_nodes_seq_print_text(struct seq_file *seq, void *offset)
 		/* For each orig_node in this bin */
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
+			/* no need to print the orig node if it does not have
+			 * network coding neighbors
+			 */
+			if (list_empty(&orig_node->in_coding_list) &&
+			    list_empty(&orig_node->out_coding_list))
+				continue;
+
 			seq_printf(seq, "Node:      %pM\n", orig_node->orig);
 
 			seq_puts(seq, " Ingoing:  ");
-- 
cgit v0.10.2


From eb2deb6b39b1597577c1635e9ebf319f1ae02213 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Fri, 19 Apr 2013 18:07:00 +0200
Subject: batman-adv: change VID semantic in the BLA code

In order to make batman-adv fully vlan aware later, the
semantic used for variables storing the VLAN ID values has
to be changed in order to be adapted to the new one which
will be used batman-adv wide.

In particular, the VID has to be an "_unsigned_ short int"
and its 4 MSB will be used as a flag bitfield, while the
remaining 12 bits are used to store the real VID value

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>

diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 082189e..7354063 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -180,7 +180,7 @@ static struct batadv_bla_claim
  */
 static struct batadv_bla_backbone_gw *
 batadv_backbone_hash_find(struct batadv_priv *bat_priv,
-			  uint8_t *addr, short vid)
+			  uint8_t *addr, unsigned short vid)
 {
 	struct batadv_hashtable *hash = bat_priv->bla.backbone_hash;
 	struct hlist_head *head;
@@ -257,7 +257,7 @@ batadv_bla_del_backbone_claims(struct batadv_bla_backbone_gw *backbone_gw)
  * @claimtype: the type of the claim (CLAIM, UNCLAIM, ANNOUNCE, ...)
  */
 static void batadv_bla_send_claim(struct batadv_priv *bat_priv, uint8_t *mac,
-				  short vid, int claimtype)
+				  unsigned short vid, int claimtype)
 {
 	struct sk_buff *skb;
 	struct ethhdr *ethhdr;
@@ -335,13 +335,14 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, uint8_t *mac,
 		memcpy(hw_src, mac, ETH_ALEN);
 		memcpy(ethhdr->h_dest, mac, ETH_ALEN);
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
-			   "bla_send_claim(): REQUEST of %pM to %pMon vid %d\n",
+			   "bla_send_claim(): REQUEST of %pM to %pM on vid %d\n",
 			   ethhdr->h_source, ethhdr->h_dest, vid);
 		break;
 	}
 
-	if (vid != -1)
-		skb = vlan_insert_tag(skb, htons(ETH_P_8021Q), vid);
+	if (vid & BATADV_VLAN_HAS_TAG)
+		skb = vlan_insert_tag(skb, htons(ETH_P_8021Q),
+				      vid & VLAN_VID_MASK);
 
 	skb_reset_mac_header(skb);
 	skb->protocol = eth_type_trans(skb, soft_iface);
@@ -367,7 +368,7 @@ out:
  */
 static struct batadv_bla_backbone_gw *
 batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, uint8_t *orig,
-			   short vid, bool own_backbone)
+			   unsigned short vid, bool own_backbone)
 {
 	struct batadv_bla_backbone_gw *entry;
 	struct batadv_orig_node *orig_node;
@@ -434,7 +435,7 @@ batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, uint8_t *orig,
 static void
 batadv_bla_update_own_backbone_gw(struct batadv_priv *bat_priv,
 				  struct batadv_hard_iface *primary_if,
-				  short vid)
+				  unsigned short vid)
 {
 	struct batadv_bla_backbone_gw *backbone_gw;
 
@@ -456,7 +457,7 @@ batadv_bla_update_own_backbone_gw(struct batadv_priv *bat_priv,
  */
 static void batadv_bla_answer_request(struct batadv_priv *bat_priv,
 				      struct batadv_hard_iface *primary_if,
-				      short vid)
+				      unsigned short vid)
 {
 	struct hlist_head *head;
 	struct batadv_hashtable *hash;
@@ -547,7 +548,7 @@ static void batadv_bla_send_announce(struct batadv_priv *bat_priv,
  * @backbone_gw: the backbone gateway which claims it
  */
 static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
-				 const uint8_t *mac, const short vid,
+				 const uint8_t *mac, const unsigned short vid,
 				 struct batadv_bla_backbone_gw *backbone_gw)
 {
 	struct batadv_bla_claim *claim;
@@ -611,7 +612,7 @@ claim_free_ref:
  * given mac address and vid.
  */
 static void batadv_bla_del_claim(struct batadv_priv *bat_priv,
-				 const uint8_t *mac, const short vid)
+				 const uint8_t *mac, const unsigned short vid)
 {
 	struct batadv_bla_claim search_claim, *claim;
 
@@ -637,7 +638,7 @@ static void batadv_bla_del_claim(struct batadv_priv *bat_priv,
 /* check for ANNOUNCE frame, return 1 if handled */
 static int batadv_handle_announce(struct batadv_priv *bat_priv,
 				  uint8_t *an_addr, uint8_t *backbone_addr,
-				  short vid)
+				  unsigned short vid)
 {
 	struct batadv_bla_backbone_gw *backbone_gw;
 	uint16_t crc;
@@ -685,7 +686,7 @@ static int batadv_handle_announce(struct batadv_priv *bat_priv,
 static int batadv_handle_request(struct batadv_priv *bat_priv,
 				 struct batadv_hard_iface *primary_if,
 				 uint8_t *backbone_addr,
-				 struct ethhdr *ethhdr, short vid)
+				 struct ethhdr *ethhdr, unsigned short vid)
 {
 	/* check for REQUEST frame */
 	if (!batadv_compare_eth(backbone_addr, ethhdr->h_dest))
@@ -709,7 +710,7 @@ static int batadv_handle_request(struct batadv_priv *bat_priv,
 static int batadv_handle_unclaim(struct batadv_priv *bat_priv,
 				 struct batadv_hard_iface *primary_if,
 				 uint8_t *backbone_addr,
-				 uint8_t *claim_addr, short vid)
+				 uint8_t *claim_addr, unsigned short vid)
 {
 	struct batadv_bla_backbone_gw *backbone_gw;
 
@@ -738,7 +739,7 @@ static int batadv_handle_unclaim(struct batadv_priv *bat_priv,
 static int batadv_handle_claim(struct batadv_priv *bat_priv,
 			       struct batadv_hard_iface *primary_if,
 			       uint8_t *backbone_addr, uint8_t *claim_addr,
-			       short vid)
+			       unsigned short vid)
 {
 	struct batadv_bla_backbone_gw *backbone_gw;
 
@@ -861,7 +862,7 @@ static int batadv_bla_process_claim(struct batadv_priv *bat_priv,
 	struct batadv_bla_claim_dst *bla_dst;
 	uint16_t proto;
 	int headlen;
-	short vid = -1;
+	unsigned short vid = BATADV_NO_FLAGS;
 	int ret;
 
 	ethhdr = eth_hdr(skb);
@@ -869,6 +870,7 @@ static int batadv_bla_process_claim(struct batadv_priv *bat_priv,
 	if (ntohs(ethhdr->h_proto) == ETH_P_8021Q) {
 		vhdr = (struct vlan_ethhdr *)ethhdr;
 		vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
+		vid |= BATADV_VLAN_HAS_TAG;
 		proto = ntohs(vhdr->h_vlan_encapsulated_proto);
 		headlen = sizeof(*vhdr);
 	} else {
@@ -1358,7 +1360,7 @@ int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 	struct ethhdr *ethhdr;
 	struct vlan_ethhdr *vhdr;
 	struct batadv_bla_backbone_gw *backbone_gw;
-	short vid = -1;
+	unsigned short vid = BATADV_NO_FLAGS;
 
 	if (!atomic_read(&orig_node->bat_priv->bridge_loop_avoidance))
 		return 0;
@@ -1375,6 +1377,7 @@ int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 
 		vhdr = (struct vlan_ethhdr *)(skb->data + hdr_size);
 		vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
+		vid |= BATADV_VLAN_HAS_TAG;
 	}
 
 	/* see if this originator is a backbone gw for this VLAN */
@@ -1424,8 +1427,8 @@ void batadv_bla_free(struct batadv_priv *bat_priv)
  * returns 1, otherwise it returns 0 and the caller shall further
  * process the skb.
  */
-int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid,
-		  bool is_bcast)
+int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+		  unsigned short vid, bool is_bcast)
 {
 	struct ethhdr *ethhdr;
 	struct batadv_bla_claim search_claim, *claim = NULL;
@@ -1519,7 +1522,8 @@ out:
  * returns 1, otherwise it returns 0 and the caller shall further
  * process the skb.
  */
-int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid)
+int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+		  unsigned short vid)
 {
 	struct ethhdr *ethhdr;
 	struct batadv_bla_claim search_claim, *claim = NULL;
@@ -1623,7 +1627,7 @@ int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset)
 		hlist_for_each_entry_rcu(claim, head, hash_entry) {
 			is_own = batadv_compare_eth(claim->backbone_gw->orig,
 						    primary_addr);
-			seq_printf(seq,	" * %pM on % 5d by %pM [%c] (%#.4x)\n",
+			seq_printf(seq, " * %pM on %5d by %pM [%c] (%#.4x)\n",
 				   claim->addr, claim->vid,
 				   claim->backbone_gw->orig,
 				   (is_own ? 'x' : ' '),
@@ -1676,10 +1680,9 @@ int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void *offset)
 			if (is_own)
 				continue;
 
-			seq_printf(seq,
-				   " * %pM on % 5d % 4i.%03is (%#.4x)\n",
-				   backbone_gw->orig, backbone_gw->vid,
-				   secs, msecs, backbone_gw->crc);
+			seq_printf(seq, " * %pM on %5d %4i.%03is (%#.4x)\n",
+				   backbone_gw->orig, backbone_gw->vid, secs,
+				   msecs, backbone_gw->crc);
 		}
 		rcu_read_unlock();
 	}
diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h
index dea2fbc..4b102e7 100644
--- a/net/batman-adv/bridge_loop_avoidance.h
+++ b/net/batman-adv/bridge_loop_avoidance.h
@@ -21,9 +21,10 @@
 #define _NET_BATMAN_ADV_BLA_H_
 
 #ifdef CONFIG_BATMAN_ADV_BLA
-int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid,
-		  bool is_bcast);
-int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb, short vid);
+int batadv_bla_rx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+		  unsigned short vid, bool is_bcast);
+int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
+		  unsigned short vid);
 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 			      struct batadv_orig_node *orig_node, int hdr_size);
 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
@@ -42,13 +43,14 @@ void batadv_bla_free(struct batadv_priv *bat_priv);
 #else /* ifdef CONFIG_BATMAN_ADV_BLA */
 
 static inline int batadv_bla_rx(struct batadv_priv *bat_priv,
-				struct sk_buff *skb, short vid, bool is_bcast)
+				struct sk_buff *skb, unsigned short vid,
+				bool is_bcast)
 {
 	return 0;
 }
 
 static inline int batadv_bla_tx(struct batadv_priv *bat_priv,
-				struct sk_buff *skb, short vid)
+				struct sk_buff *skb, unsigned short vid)
 {
 	return 0;
 }
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index ea1a3ba..6f25ef2 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -162,6 +162,17 @@ enum batadv_uev_type {
 #include <linux/seq_file.h>
 #include "types.h"
 
+/**
+ * batadv_vlan_flags - flags for the four MSB of any vlan ID field
+ * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not
+ */
+enum batadv_vlan_flags {
+	BATADV_VLAN_HAS_TAG	= BIT(15),
+};
+
+#define BATADV_PRINT_VID(vid) (vid & BATADV_VLAN_HAS_TAG ? \
+			       (int)(vid & VLAN_VID_MASK) : -1)
+
 extern char batadv_routing_algo[];
 extern struct list_head batadv_hardif_list;
 
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index b26a6cd..700d0b4 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -154,7 +154,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 						    0x00, 0x00};
 	unsigned int header_len = 0;
 	int data_len = skb->len, ret;
-	short vid __maybe_unused = -1;
+	unsigned short vid __maybe_unused = BATADV_NO_FLAGS;
 	bool do_bcast = false;
 	uint32_t seqno;
 	unsigned long brd_delay = 1;
@@ -303,7 +303,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
 	struct ethhdr *ethhdr;
 	struct vlan_ethhdr *vhdr;
 	struct batadv_header *batadv_header = (struct batadv_header *)skb->data;
-	short vid __maybe_unused = -1;
+	unsigned short vid __maybe_unused = BATADV_NO_FLAGS;
 	__be16 ethertype = __constant_htons(ETH_P_BATMAN);
 	bool is_bcast;
 
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 5f542bd..b2c94e1 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -642,7 +642,7 @@ struct batadv_socket_packet {
 #ifdef CONFIG_BATMAN_ADV_BLA
 struct batadv_bla_backbone_gw {
 	uint8_t orig[ETH_ALEN];
-	short vid;
+	unsigned short vid;
 	struct hlist_node hash_entry;
 	struct batadv_priv *bat_priv;
 	unsigned long lasttime;
@@ -665,7 +665,7 @@ struct batadv_bla_backbone_gw {
  */
 struct batadv_bla_claim {
 	uint8_t addr[ETH_ALEN];
-	short vid;
+	unsigned short vid;
 	struct batadv_bla_backbone_gw *backbone_gw;
 	unsigned long lasttime;
 	struct hlist_node hash_entry;
-- 
cgit v0.10.2


From 5f80df6705fcd8153f93bd0e82109dbeb7ff535b Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Fri, 19 Apr 2013 18:07:01 +0200
Subject: batman-adv: print the VID properly

Since the MSB bits of any vid variable are now used for
storing flags, print the vid properly by taking the flags
away and printing -1 in case of VID representing no real
VLAN.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 7354063..e9d8e0b 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -307,7 +307,8 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, uint8_t *mac,
 		 */
 		memcpy(ethhdr->h_source, mac, ETH_ALEN);
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
-			   "bla_send_claim(): CLAIM %pM on vid %d\n", mac, vid);
+			   "bla_send_claim(): CLAIM %pM on vid %d\n", mac,
+			   BATADV_PRINT_VID(vid));
 		break;
 	case BATADV_CLAIM_TYPE_UNCLAIM:
 		/* unclaim frame
@@ -316,7 +317,7 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, uint8_t *mac,
 		memcpy(hw_src, mac, ETH_ALEN);
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
 			   "bla_send_claim(): UNCLAIM %pM on vid %d\n", mac,
-			   vid);
+			   BATADV_PRINT_VID(vid));
 		break;
 	case BATADV_CLAIM_TYPE_ANNOUNCE:
 		/* announcement frame
@@ -325,7 +326,7 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, uint8_t *mac,
 		memcpy(hw_src, mac, ETH_ALEN);
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
 			   "bla_send_claim(): ANNOUNCE of %pM on vid %d\n",
-			   ethhdr->h_source, vid);
+			   ethhdr->h_source, BATADV_PRINT_VID(vid));
 		break;
 	case BATADV_CLAIM_TYPE_REQUEST:
 		/* request frame
@@ -336,7 +337,8 @@ static void batadv_bla_send_claim(struct batadv_priv *bat_priv, uint8_t *mac,
 		memcpy(ethhdr->h_dest, mac, ETH_ALEN);
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
 			   "bla_send_claim(): REQUEST of %pM to %pM on vid %d\n",
-			   ethhdr->h_source, ethhdr->h_dest, vid);
+			   ethhdr->h_source, ethhdr->h_dest,
+			   BATADV_PRINT_VID(vid));
 		break;
 	}
 
@@ -381,7 +383,7 @@ batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, uint8_t *orig,
 
 	batadv_dbg(BATADV_DBG_BLA, bat_priv,
 		   "bla_get_backbone_gw(): not found (%pM, %d), creating new entry\n",
-		   orig, vid);
+		   orig, BATADV_PRINT_VID(vid));
 
 	entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 	if (!entry)
@@ -573,7 +575,7 @@ static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
 		atomic_set(&claim->refcount, 2);
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
 			   "bla_add_claim(): adding new entry %pM, vid %d to hash ...\n",
-			   mac, vid);
+			   mac, BATADV_PRINT_VID(vid));
 		hash_added = batadv_hash_add(bat_priv->bla.claim_hash,
 					     batadv_compare_claim,
 					     batadv_choose_claim, claim,
@@ -592,7 +594,7 @@ static void batadv_bla_add_claim(struct batadv_priv *bat_priv,
 
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
 			   "bla_add_claim(): changing ownership for %pM, vid %d\n",
-			   mac, vid);
+			   mac, BATADV_PRINT_VID(vid));
 
 		claim->backbone_gw->crc ^= crc16(0, claim->addr, ETH_ALEN);
 		batadv_backbone_gw_free_ref(claim->backbone_gw);
@@ -623,7 +625,7 @@ static void batadv_bla_del_claim(struct batadv_priv *bat_priv,
 		return;
 
 	batadv_dbg(BATADV_DBG_BLA, bat_priv, "bla_del_claim(): %pM, vid %d\n",
-		   mac, vid);
+		   mac, BATADV_PRINT_VID(vid));
 
 	batadv_hash_remove(bat_priv->bla.claim_hash, batadv_compare_claim,
 			   batadv_choose_claim, claim);
@@ -659,12 +661,13 @@ static int batadv_handle_announce(struct batadv_priv *bat_priv,
 
 	batadv_dbg(BATADV_DBG_BLA, bat_priv,
 		   "handle_announce(): ANNOUNCE vid %d (sent by %pM)... CRC = %#.4x\n",
-		   vid, backbone_gw->orig, crc);
+		   BATADV_PRINT_VID(vid), backbone_gw->orig, crc);
 
 	if (backbone_gw->crc != crc) {
 		batadv_dbg(BATADV_DBG_BLA, backbone_gw->bat_priv,
 			   "handle_announce(): CRC FAILED for %pM/%d (my = %#.4x, sent = %#.4x)\n",
-			   backbone_gw->orig, backbone_gw->vid,
+			   backbone_gw->orig,
+			   BATADV_PRINT_VID(backbone_gw->vid),
 			   backbone_gw->crc, crc);
 
 		batadv_bla_send_request(backbone_gw);
@@ -700,7 +703,7 @@ static int batadv_handle_request(struct batadv_priv *bat_priv,
 
 	batadv_dbg(BATADV_DBG_BLA, bat_priv,
 		   "handle_request(): REQUEST vid %d (sent by %pM)...\n",
-		   vid, ethhdr->h_source);
+		   BATADV_PRINT_VID(vid), ethhdr->h_source);
 
 	batadv_bla_answer_request(bat_priv, primary_if, vid);
 	return 1;
@@ -728,7 +731,7 @@ static int batadv_handle_unclaim(struct batadv_priv *bat_priv,
 	/* this must be an UNCLAIM frame */
 	batadv_dbg(BATADV_DBG_BLA, bat_priv,
 		   "handle_unclaim(): UNCLAIM %pM on vid %d (sent by %pM)...\n",
-		   claim_addr, vid, backbone_gw->orig);
+		   claim_addr, BATADV_PRINT_VID(vid), backbone_gw->orig);
 
 	batadv_bla_del_claim(bat_priv, claim_addr, vid);
 	batadv_backbone_gw_free_ref(backbone_gw);
@@ -912,7 +915,8 @@ static int batadv_bla_process_claim(struct batadv_priv *bat_priv,
 	if (ret == 1)
 		batadv_dbg(BATADV_DBG_BLA, bat_priv,
 			   "bla_process_claim(): received a claim frame from another group. From: %pM on vid %d ...(hw_src %pM, hw_dst %pM)\n",
-			   ethhdr->h_source, vid, hw_src, hw_dst);
+			   ethhdr->h_source, BATADV_PRINT_VID(vid), hw_src,
+			   hw_dst);
 
 	if (ret < 2)
 		return ret;
@@ -947,7 +951,7 @@ static int batadv_bla_process_claim(struct batadv_priv *bat_priv,
 
 	batadv_dbg(BATADV_DBG_BLA, bat_priv,
 		   "bla_process_claim(): ERROR - this looks like a claim frame, but is useless. eth src %pM on vid %d ...(hw_src %pM, hw_dst %pM)\n",
-		   ethhdr->h_source, vid, hw_src, hw_dst);
+		   ethhdr->h_source, BATADV_PRINT_VID(vid), hw_src, hw_dst);
 	return 1;
 }
 
@@ -1628,7 +1632,7 @@ int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset)
 			is_own = batadv_compare_eth(claim->backbone_gw->orig,
 						    primary_addr);
 			seq_printf(seq, " * %pM on %5d by %pM [%c] (%#.4x)\n",
-				   claim->addr, claim->vid,
+				   claim->addr, BATADV_PRINT_VID(claim->vid),
 				   claim->backbone_gw->orig,
 				   (is_own ? 'x' : ' '),
 				   claim->backbone_gw->crc);
@@ -1681,7 +1685,8 @@ int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq, void *offset)
 				continue;
 
 			seq_printf(seq, " * %pM on %5d %4i.%03is (%#.4x)\n",
-				   backbone_gw->orig, backbone_gw->vid, secs,
+				   backbone_gw->orig,
+				   BATADV_PRINT_VID(backbone_gw->vid), secs,
 				   msecs, backbone_gw->crc);
 		}
 		rcu_read_unlock();
-- 
cgit v0.10.2


From e91ecfc64ad691176be119e627e36cec8564f44b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Hundeb=C3=B8ll?= <martin@hundeboll.net>
Date: Sat, 20 Apr 2013 13:54:39 +0200
Subject: batman-adv: Move call to batadv_nc_skb_forward() from routing.c to
 send.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The call to batadv_nc_skb_forward() fits better in
batadv_send_skb_to_orig(), as this is where the actual next hop is
looked up.

To let the caller of batadv_send_skb_to_orig() know wether the skb is
transmitted, buffered or failed, the return value is changed from
boolean to int.

Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 22cd51f..a487d46 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -1359,18 +1359,17 @@ static bool batadv_nc_skb_add_to_path(struct sk_buff *skb,
  *  buffer
  * @skb: data skb to forward
  * @neigh_node: next hop to forward packet to
- * @ethhdr: pointer to the ethernet header inside the skb
  *
  * Returns true if the skb was consumed (encoded packet sent) or false otherwise
  */
 bool batadv_nc_skb_forward(struct sk_buff *skb,
-			   struct batadv_neigh_node *neigh_node,
-			   struct ethhdr *ethhdr)
+			   struct batadv_neigh_node *neigh_node)
 {
 	const struct net_device *netdev = neigh_node->if_incoming->soft_iface;
 	struct batadv_priv *bat_priv = netdev_priv(netdev);
 	struct batadv_unicast_packet *packet;
 	struct batadv_nc_path *nc_path;
+	struct ethhdr *ethhdr = eth_hdr(skb);
 	__be32 packet_id;
 	u8 *payload;
 
diff --git a/net/batman-adv/network-coding.h b/net/batman-adv/network-coding.h
index 4fa6d0c..85a4ec8 100644
--- a/net/batman-adv/network-coding.h
+++ b/net/batman-adv/network-coding.h
@@ -36,8 +36,7 @@ void batadv_nc_purge_orig(struct batadv_priv *bat_priv,
 void batadv_nc_init_bat_priv(struct batadv_priv *bat_priv);
 void batadv_nc_init_orig(struct batadv_orig_node *orig_node);
 bool batadv_nc_skb_forward(struct sk_buff *skb,
-			   struct batadv_neigh_node *neigh_node,
-			   struct ethhdr *ethhdr);
+			   struct batadv_neigh_node *neigh_node);
 void batadv_nc_skb_store_for_decoding(struct batadv_priv *bat_priv,
 				      struct sk_buff *skb);
 void batadv_nc_skb_store_sniffed_unicast(struct batadv_priv *bat_priv,
@@ -87,8 +86,7 @@ static inline void batadv_nc_init_orig(struct batadv_orig_node *orig_node)
 }
 
 static inline bool batadv_nc_skb_forward(struct sk_buff *skb,
-					 struct batadv_neigh_node *neigh_node,
-					 struct ethhdr *ethhdr)
+					 struct batadv_neigh_node *neigh_node)
 {
 	return false;
 }
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index fad0846..2f0bd3f 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -285,7 +285,7 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
 	icmp_packet->msg_type = BATADV_ECHO_REPLY;
 	icmp_packet->header.ttl = BATADV_TTL;
 
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
 		ret = NET_RX_SUCCESS;
 
 out:
@@ -333,7 +333,7 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv,
 	icmp_packet->msg_type = BATADV_TTL_EXCEEDED;
 	icmp_packet->header.ttl = BATADV_TTL;
 
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
 		ret = NET_RX_SUCCESS;
 
 out:
@@ -410,7 +410,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	icmp_packet->header.ttl--;
 
 	/* route it */
-	if (batadv_send_skb_to_orig(skb, orig_node, recv_if))
+	if (batadv_send_skb_to_orig(skb, orig_node, recv_if) != NET_XMIT_DROP)
 		ret = NET_RX_SUCCESS;
 
 out:
@@ -775,7 +775,7 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 	struct batadv_neigh_node *neigh_node = NULL;
 	struct batadv_unicast_packet *unicast_packet;
 	struct ethhdr *ethhdr = eth_hdr(skb);
-	int ret = NET_RX_DROP;
+	int res, ret = NET_RX_DROP;
 	struct sk_buff *new_skb;
 
 	unicast_packet = (struct batadv_unicast_packet *)skb->data;
@@ -835,16 +835,19 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 	/* decrement ttl */
 	unicast_packet->header.ttl--;
 
-	/* network code packet if possible */
-	if (batadv_nc_skb_forward(skb, neigh_node, ethhdr)) {
-		ret = NET_RX_SUCCESS;
-	} else if (batadv_send_skb_to_orig(skb, orig_node, recv_if)) {
-		ret = NET_RX_SUCCESS;
+	res = batadv_send_skb_to_orig(skb, orig_node, recv_if);
 
-		/* Update stats counter */
+	/* translate transmit result into receive result */
+	if (res == NET_XMIT_SUCCESS) {
+		/* skb was transmitted and consumed */
 		batadv_inc_counter(bat_priv, BATADV_CNT_FORWARD);
 		batadv_add_counter(bat_priv, BATADV_CNT_FORWARD_BYTES,
 				   skb->len + ETH_HLEN);
+
+		ret = NET_RX_SUCCESS;
+	} else if (res == NET_XMIT_POLICED) {
+		/* skb was buffered and consumed */
+		ret = NET_RX_SUCCESS;
 	}
 
 out:
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index ce69f45..e9ff8d8 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -96,26 +96,37 @@ send_skb_err:
  * host, NULL can be passed as recv_if and no interface alternating is
  * attempted.
  *
- * Returns TRUE on success; FALSE otherwise.
+ * Returns NET_XMIT_SUCCESS on success, NET_XMIT_DROP on failure, or
+ * NET_XMIT_POLICED if the skb is buffered for later transmit.
  */
-bool batadv_send_skb_to_orig(struct sk_buff *skb,
-			     struct batadv_orig_node *orig_node,
-			     struct batadv_hard_iface *recv_if)
+int batadv_send_skb_to_orig(struct sk_buff *skb,
+			    struct batadv_orig_node *orig_node,
+			    struct batadv_hard_iface *recv_if)
 {
 	struct batadv_priv *bat_priv = orig_node->bat_priv;
 	struct batadv_neigh_node *neigh_node;
+	int ret = NET_XMIT_DROP;
 
 	/* batadv_find_router() increases neigh_nodes refcount if found. */
 	neigh_node = batadv_find_router(bat_priv, orig_node, recv_if);
 	if (!neigh_node)
-		return false;
+		return ret;
 
-	/* route it */
-	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
+	/* try to network code the packet, if it is received on an interface
+	 * (i.e. being forwarded). If the packet originates from this node or if
+	 * network coding fails, then send the packet as usual.
+	 */
+	if (recv_if && batadv_nc_skb_forward(skb, neigh_node)) {
+		ret = NET_XMIT_POLICED;
+	} else {
+		batadv_send_skb_packet(skb, neigh_node->if_incoming,
+				       neigh_node->addr);
+		ret = NET_XMIT_SUCCESS;
+	}
 
 	batadv_neigh_node_free_ref(neigh_node);
 
-	return true;
+	return ret;
 }
 
 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface)
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h
index 38e662f..e7b1788 100644
--- a/net/batman-adv/send.h
+++ b/net/batman-adv/send.h
@@ -23,9 +23,9 @@
 int batadv_send_skb_packet(struct sk_buff *skb,
 			   struct batadv_hard_iface *hard_iface,
 			   const uint8_t *dst_addr);
-bool batadv_send_skb_to_orig(struct sk_buff *skb,
-			     struct batadv_orig_node *orig_node,
-			     struct batadv_hard_iface *recv_if);
+int batadv_send_skb_to_orig(struct sk_buff *skb,
+			    struct batadv_orig_node *orig_node,
+			    struct batadv_hard_iface *recv_if);
 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface);
 int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv,
 				    const struct sk_buff *skb,
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index e272f68..429aeef 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1713,7 +1713,7 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_REQUEST_TX);
 
-	if (batadv_send_skb_to_orig(skb, dst_orig_node, NULL))
+	if (batadv_send_skb_to_orig(skb, dst_orig_node, NULL) != NET_XMIT_DROP)
 		ret = 0;
 
 out:
@@ -1737,7 +1737,7 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 	struct batadv_orig_node *req_dst_orig_node;
 	struct batadv_orig_node *res_dst_orig_node = NULL;
 	uint8_t orig_ttvn, req_ttvn, ttvn;
-	int ret = false;
+	int res, ret = false;
 	unsigned char *tt_buff;
 	bool full_table;
 	uint16_t tt_len, tt_tot;
@@ -1832,8 +1832,10 @@ batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
 
-	if (batadv_send_skb_to_orig(skb, res_dst_orig_node, NULL))
+	res = batadv_send_skb_to_orig(skb, res_dst_orig_node, NULL);
+	if (res != NET_XMIT_DROP)
 		ret = true;
+
 	goto out;
 
 unlock:
@@ -1947,7 +1949,7 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
 
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
 		ret = true;
 	goto out;
 
@@ -2260,7 +2262,7 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_TX);
 
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
 		ret = 0;
 
 out:
diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
index 0bb3b59..dc8b5d4 100644
--- a/net/batman-adv/unicast.c
+++ b/net/batman-adv/unicast.c
@@ -464,7 +464,7 @@ find_router:
 		goto out;
 	}
 
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL))
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
 		ret = 0;
 
 out:
diff --git a/net/batman-adv/vis.c b/net/batman-adv/vis.c
index 94eaeb5..4983340 100644
--- a/net/batman-adv/vis.c
+++ b/net/batman-adv/vis.c
@@ -697,7 +697,7 @@ static void batadv_broadcast_vis_packet(struct batadv_priv *bat_priv,
 	struct batadv_orig_node *orig_node;
 	struct batadv_vis_packet *packet;
 	struct sk_buff *skb;
-	uint32_t i;
+	uint32_t i, res;
 
 
 	packet = (struct batadv_vis_packet *)info->skb_packet->data;
@@ -724,7 +724,8 @@ static void batadv_broadcast_vis_packet(struct batadv_priv *bat_priv,
 			if (!skb)
 				continue;
 
-			if (!batadv_send_skb_to_orig(skb, orig_node, NULL))
+			res = batadv_send_skb_to_orig(skb, orig_node, NULL);
+			if (res == NET_XMIT_DROP)
 				kfree_skb(skb);
 		}
 		rcu_read_unlock();
@@ -748,7 +749,7 @@ static void batadv_unicast_vis_packet(struct batadv_priv *bat_priv,
 	if (!skb)
 		goto out;
 
-	if (!batadv_send_skb_to_orig(skb, orig_node, NULL))
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL) == NET_XMIT_DROP)
 		kfree_skb(skb);
 
 out:
-- 
cgit v0.10.2


From 6715fd3f0538e805b6a769d66823ec16b8b647ac Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Date: Sat, 20 Apr 2013 17:15:09 +0200
Subject: batman-adv: Start new development cycle

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>

diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 6f25ef2..5e9aebb 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -26,7 +26,7 @@
 #define BATADV_DRIVER_DEVICE "batman-adv"
 
 #ifndef BATADV_SOURCE_VERSION
-#define BATADV_SOURCE_VERSION "2013.2.0"
+#define BATADV_SOURCE_VERSION "2013.3.0"
 #endif
 
 /* B.A.T.M.A.N. parameters */
-- 
cgit v0.10.2


From 75538c2b85cf22eb9af6adfaf26ed7219025adeb Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Wed, 29 May 2013 11:30:50 +0800
Subject: net: always pass struct netdev_notifier_info to netdevice notifiers

commit 351638e7deeed2ec8ce451b53d3 (net: pass info struct via netdevice notifier)
breaks booting of my KVM guest, this is due to we still forget to pass
struct netdev_notifier_info in several places. This patch completes it.

Cc: Jiri Pirko <jiri@resnulli.us>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 8502718..8f967e3 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1609,6 +1609,12 @@ struct netdev_notifier_change_info {
 	unsigned int flags_changed;
 };
 
+static inline void netdev_notifier_info_init(struct netdev_notifier_info *info,
+					     struct net_device *dev)
+{
+	info->dev = dev;
+}
+
 static inline struct net_device *
 netdev_notifier_info_to_dev(const struct netdev_notifier_info *info)
 {
diff --git a/net/atm/clip.c b/net/atm/clip.c
index cce241e..8215f7c 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -575,6 +575,7 @@ static int clip_inet_event(struct notifier_block *this, unsigned long event,
 			   void *ifa)
 {
 	struct in_device *in_dev;
+	struct netdev_notifier_info info;
 
 	in_dev = ((struct in_ifaddr *)ifa)->ifa_dev;
 	/*
@@ -583,7 +584,8 @@ static int clip_inet_event(struct notifier_block *this, unsigned long event,
 	 */
 	if (event != NETDEV_UP)
 		return NOTIFY_DONE;
-	return clip_device_event(this, NETDEV_CHANGE, in_dev->dev);
+	netdev_notifier_info_init(&info, in_dev->dev);
+	return clip_device_event(this, NETDEV_CHANGE, &info);
 }
 
 static struct notifier_block clip_dev_notifier = {
diff --git a/net/core/dev.c b/net/core/dev.c
index 6eb621c..b2e9057 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1391,12 +1391,6 @@ void dev_disable_lro(struct net_device *dev)
 }
 EXPORT_SYMBOL(dev_disable_lro);
 
-static void netdev_notifier_info_init(struct netdev_notifier_info *info,
-				      struct net_device *dev)
-{
-	info->dev = dev;
-}
-
 static int call_netdevice_notifier(struct notifier_block *nb, unsigned long val,
 				   struct net_device *dev)
 {
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index dd5508b..30e4de9 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -129,7 +129,10 @@ static int masq_inet_event(struct notifier_block *this,
 			   void *ptr)
 {
 	struct net_device *dev = ((struct in_ifaddr *)ptr)->ifa_dev->dev;
-	return masq_device_event(this, event, dev);
+	struct netdev_notifier_info info;
+
+	netdev_notifier_info_init(&info, dev);
+	return masq_device_event(this, event, &info);
 }
 
 static struct notifier_block masq_dev_notifier = {
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index bce073b..7b34f06 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4645,13 +4645,16 @@ int addrconf_sysctl_forward(ctl_table *ctl, int write,
 
 static void dev_disable_change(struct inet6_dev *idev)
 {
+	struct netdev_notifier_info info;
+
 	if (!idev || !idev->dev)
 		return;
 
+	netdev_notifier_info_init(&info, idev->dev);
 	if (idev->cnf.disable_ipv6)
-		addrconf_notify(NULL, NETDEV_DOWN, idev->dev);
+		addrconf_notify(NULL, NETDEV_DOWN, &info);
 	else
-		addrconf_notify(NULL, NETDEV_UP, idev->dev);
+		addrconf_notify(NULL, NETDEV_UP, &info);
 }
 
 static void addrconf_disable_change(struct net *net, __s32 newf)
diff --git a/net/ipv6/netfilter/ip6t_MASQUERADE.c b/net/ipv6/netfilter/ip6t_MASQUERADE.c
index b76257c..47bff61 100644
--- a/net/ipv6/netfilter/ip6t_MASQUERADE.c
+++ b/net/ipv6/netfilter/ip6t_MASQUERADE.c
@@ -89,8 +89,10 @@ static int masq_inet_event(struct notifier_block *this,
 			   unsigned long event, void *ptr)
 {
 	struct inet6_ifaddr *ifa = ptr;
+	struct netdev_notifier_info info;
 
-	return masq_device_event(this, event, ifa->idev->dev);
+	netdev_notifier_info_init(&info, ifa->idev->dev);
+	return masq_device_event(this, event, &info);
 }
 
 static struct notifier_block masq_inet_notifier = {
-- 
cgit v0.10.2


From 25b6e14881e7861bb720a4624dcaf5f37854fc70 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Tue, 28 May 2013 20:34:23 +0000
Subject: isdn: Correct comparison of skb->tail and skb-transport_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->transport_header
will be an offset from head. This is corrected by using wrappers that
ensure that the comparison is always between pointers.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index 88d657d..8b98d53 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -885,7 +885,7 @@ isdn_net_log_skb(struct sk_buff *skb, isdn_net_local *lp)
 
 	addinfo[0] = '\0';
 	/* This check stolen from 2.1.72 dev_queue_xmit_nit() */
-	if (p < skb->data || skb->network_header >= skb->tail) {
+	if (p < skb->data || skb_network_header(skb) >= skb_tail_pointer(skb)) {
 		/* fall back to old isdn_net_log_packet method() */
 		char *buf = skb->data;
 
-- 
cgit v0.10.2


From be8b678c6c63010cd2b0f4f602bd3066f7827fb2 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Tue, 28 May 2013 20:34:24 +0000
Subject: cxgb3: Correct comparisons and calculations using skb->tail and
 skb-transport_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->transport_header
will be an offset from head. This is corrected by using wrappers that
ensure that comparisons and calculations are always made using pointers.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index 2fd773e..46d1efc 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -1584,9 +1584,8 @@ static void deferred_unmap_destructor(struct sk_buff *skb)
 	p = dui->addr;
 
 	if (skb->tail - skb->transport_header)
-		pci_unmap_single(dui->pdev, *p++,
-				 skb->tail - skb->transport_header,
-				 PCI_DMA_TODEVICE);
+		pci_unmap_single(dui->pdev, *p++, skb_tail_pointer(skb) -
+				 skb_transport_header(skb), PCI_DMA_TODEVICE);
 
 	si = skb_shinfo(skb);
 	for (i = 0; i < si->nr_frags; i++)
@@ -1647,8 +1646,8 @@ static void write_ofld_wr(struct adapter *adap, struct sk_buff *skb,
 	flits = skb_transport_offset(skb) / 8;
 	sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
 	sgl_flits = write_sgl(skb, sgp, skb_transport_header(skb),
-			     skb->tail - skb->transport_header,
-			     addr);
+			     skb_tail_pointer(skb) -
+			     skb_transport_header(skb), addr);
 	if (need_skb_unmap()) {
 		setup_deferred_unmapping(skb, adap->pdev, sgp, sgl_flits);
 		skb->destructor = deferred_unmap_destructor;
@@ -1674,7 +1673,7 @@ static inline unsigned int calc_tx_descs_ofld(const struct sk_buff *skb)
 
 	flits = skb_transport_offset(skb) / 8;	/* headers */
 	cnt = skb_shinfo(skb)->nr_frags;
-	if (skb->tail != skb->transport_header)
+	if (skb_tail_pointer(skb) != skb_transport_header(skb))
 		cnt++;
 	return flits_to_desc(flits + sgl_len(cnt));
 }
-- 
cgit v0.10.2


From ced14f6804a979d1972415bc23f2f8ddb18595dd Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Tue, 28 May 2013 20:34:25 +0000
Subject: net: Correct comparisons and calculations using skb->tail and
 skb-transport_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->transport_header
will be an offset from head. This is corrected by using wrappers that
ensure that comparisons and calculations are always made using pointers.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index aab7375..3bd2279 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -134,12 +134,14 @@ static inline int INET_ECN_set_ce(struct sk_buff *skb)
 {
 	switch (skb->protocol) {
 	case cpu_to_be16(ETH_P_IP):
-		if (skb->network_header + sizeof(struct iphdr) <= skb->tail)
+		if (skb_network_header(skb) + sizeof(struct iphdr) <=
+		    skb_tail_pointer(skb))
 			return IP_ECN_set_ce(ip_hdr(skb));
 		break;
 
 	case cpu_to_be16(ETH_P_IPV6):
-		if (skb->network_header + sizeof(struct ipv6hdr) <= skb->tail)
+		if (skb_network_header(skb) + sizeof(struct ipv6hdr) <=
+		    skb_tail_pointer(skb))
 			return IP6_ECN_set_ce(ipv6_hdr(skb));
 		break;
 	}
diff --git a/net/core/dev.c b/net/core/dev.c
index b2e9057..d4d874a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1724,7 +1724,7 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
 			skb_reset_mac_header(skb2);
 
 			if (skb_network_header(skb2) < skb2->data ||
-			    skb2->network_header > skb2->tail) {
+			    skb_network_header(skb2) > skb_tail_pointer(skb2)) {
 				net_crit_ratelimited("protocol %04x is buggy, dev %s\n",
 						     ntohs(skb2->protocol),
 						     dev->name);
@@ -3892,7 +3892,7 @@ static void skb_gro_reset_offset(struct sk_buff *skb)
 	NAPI_GRO_CB(skb)->frag0 = NULL;
 	NAPI_GRO_CB(skb)->frag0_len = 0;
 
-	if (skb->mac_header == skb->tail &&
+	if (skb_mac_header(skb) == skb_tail_pointer(skb) &&
 	    pinfo->nr_frags &&
 	    !PageHighMem(skb_frag_page(frag0))) {
 		NAPI_GRO_CB(skb)->frag0 = skb_frag_address(frag0);
-- 
cgit v0.10.2


From 29a3cad5c6ae9e7fbf1509d01d39c3c3c38f11f9 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Tue, 28 May 2013 20:34:26 +0000
Subject: ipv6: Correct comparisons and calculations using skb->tail and
 skb-transport_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->transport_header
will be an offset from head. This is corrected by using wrappers that
ensure that comparisons and calculations are always made using pointers.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c
index c5e83fa..140748d 100644
--- a/net/ipv6/exthdrs_core.c
+++ b/net/ipv6/exthdrs_core.c
@@ -115,7 +115,7 @@ EXPORT_SYMBOL(ipv6_skip_exthdr);
 int ipv6_find_tlv(struct sk_buff *skb, int offset, int type)
 {
 	const unsigned char *nh = skb_network_header(skb);
-	int packet_len = skb->tail - skb->network_header;
+	int packet_len = skb_tail_pointer(skb) - skb_network_header(skb);
 	struct ipv6_opt_hdr *hdr;
 	int len;
 
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 1d2902e..4b4890b 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -399,7 +399,7 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
 	int err = 0;
 
 	if ((u8 *)hdr < skb->head ||
-	    (skb->network_header + sizeof(*hdr)) > skb->tail)
+	    (skb_network_header(skb) + sizeof(*hdr)) > skb_tail_pointer(skb))
 		return;
 
 	/*
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index bfa6cc3..72c8bfe 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1409,8 +1409,9 @@ static void mld_sendpack(struct sk_buff *skb)
 	idev = __in6_dev_get(skb->dev);
 	IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
 
-	payload_len = (skb->tail - skb->network_header) - sizeof(*pip6);
-	mldlen = skb->tail - skb->transport_header;
+	payload_len = (skb_tail_pointer(skb) - skb_network_header(skb)) -
+		sizeof(*pip6);
+	mldlen = skb_tail_pointer(skb) - skb_transport_header(skb);
 	pip6->payload_len = htons(payload_len);
 
 	pmr->mld2r_cksum = csum_ipv6_magic(&pip6->saddr, &pip6->daddr, mldlen,
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 0f9bdc5..9ac01dc 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -268,7 +268,8 @@ static int mip6_destopt_offset(struct xfrm_state *x, struct sk_buff *skb,
 	struct ipv6_opt_hdr *exthdr =
 				   (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
 	const unsigned char *nh = skb_network_header(skb);
-	unsigned int packet_len = skb->tail - skb->network_header;
+	unsigned int packet_len = skb_tail_pointer(skb) -
+		skb_network_header(skb);
 	int found_rhdr = 0;
 
 	*nexthdr = &ipv6_hdr(skb)->nexthdr;
@@ -404,7 +405,8 @@ static int mip6_rthdr_offset(struct xfrm_state *x, struct sk_buff *skb,
 	struct ipv6_opt_hdr *exthdr =
 				   (struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
 	const unsigned char *nh = skb_network_header(skb);
-	unsigned int packet_len = skb->tail - skb->network_header;
+	unsigned int packet_len = skb_tail_pointer(skb) -
+		skb_network_header(skb);
 	int found_rhdr = 0;
 
 	*nexthdr = &ipv6_hdr(skb)->nexthdr;
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index a096269..781dd3c 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -693,7 +693,7 @@ static void ndisc_recv_ns(struct sk_buff *skb)
 	const struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
 	const struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
 	u8 *lladdr = NULL;
-	u32 ndoptlen = skb->tail - (skb->transport_header +
+	u32 ndoptlen = skb_tail_pointer(skb) - (skb_transport_header(skb) +
 				    offsetof(struct nd_msg, opt));
 	struct ndisc_options ndopts;
 	struct net_device *dev = skb->dev;
@@ -853,7 +853,7 @@ static void ndisc_recv_na(struct sk_buff *skb)
 	const struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
 	const struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
 	u8 *lladdr = NULL;
-	u32 ndoptlen = skb->tail - (skb->transport_header +
+	u32 ndoptlen = skb_tail_pointer(skb) - (skb_transport_header(skb) +
 				    offsetof(struct nd_msg, opt));
 	struct ndisc_options ndopts;
 	struct net_device *dev = skb->dev;
@@ -1069,7 +1069,8 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 
 	__u8 * opt = (__u8 *)(ra_msg + 1);
 
-	optlen = (skb->tail - skb->transport_header) - sizeof(struct ra_msg);
+	optlen = (skb_tail_pointer(skb) - skb_transport_header(skb)) -
+		sizeof(struct ra_msg);
 
 	if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) {
 		ND_PRINTK(2, warn, "RA: source address is not link-local\n");
@@ -1346,7 +1347,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb)
 	u8 *hdr;
 	struct ndisc_options ndopts;
 	struct rd_msg *msg = (struct rd_msg *)skb_transport_header(skb);
-	u32 ndoptlen = skb->tail - (skb->transport_header +
+	u32 ndoptlen = skb_tail_pointer(skb) - (skb_transport_header(skb) +
 				    offsetof(struct rd_msg, opt));
 
 #ifdef CONFIG_IPV6_NDISC_NODETYPE
diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
index c2e73e6..ab92a36 100644
--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -40,7 +40,8 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
 	u16 offset = sizeof(struct ipv6hdr);
 	struct ipv6_opt_hdr *exthdr =
 				(struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
-	unsigned int packet_len = skb->tail - skb->network_header;
+	unsigned int packet_len = skb_tail_pointer(skb) -
+		skb_network_header(skb);
 	int found_rhdr = 0;
 	*nexthdr = &ipv6_hdr(skb)->nexthdr;
 
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index eedff8c..4f8886a 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1132,7 +1132,8 @@ static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
 		spin_lock_bh(&sk->sk_receive_queue.lock);
 		skb = skb_peek(&sk->sk_receive_queue);
 		if (skb != NULL)
-			amount = skb->tail - skb->transport_header;
+			amount = skb_tail_pointer(skb) -
+				skb_transport_header(skb);
 		spin_unlock_bh(&sk->sk_receive_queue.lock);
 		return put_user(amount, (int __user *)arg);
 	}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 194c3cd..2b87418 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1649,7 +1649,7 @@ static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_bu
 	int optlen, on_link;
 	u8 *lladdr;
 
-	optlen = skb->tail - skb->transport_header;
+	optlen = skb_tail_pointer(skb) - skb_transport_header(skb);
 	optlen -= sizeof(*msg);
 
 	if (optlen < 0) {
-- 
cgit v0.10.2


From f7c0c2ae843b74f8dba55820cb0a3de19c976703 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Tue, 28 May 2013 20:34:27 +0000
Subject: ipv4: Correct comparisons and calculations using skb->tail and
 skb-transport_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->transport_header
will be an offset from head. This is corrected by using wrappers that
ensure that comparisons and calculations are always made using pointers.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 562efd9..5d0d379 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -503,7 +503,8 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	iph = ip_hdr(skb_in);
 
 	if ((u8 *)iph < skb_in->head ||
-	    (skb_in->network_header + sizeof(*iph)) > skb_in->tail)
+	    (skb_network_header(skb_in) + sizeof(*iph)) >
+	    skb_tail_pointer(skb_in))
 		goto out;
 
 	/*
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index d8c2327..450f625 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -363,7 +363,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
 static int igmpv3_sendpack(struct sk_buff *skb)
 {
 	struct igmphdr *pig = igmp_hdr(skb);
-	const int igmplen = skb->tail - skb->transport_header;
+	const int igmplen = skb_tail_pointer(skb) - skb_transport_header(skb);
 
 	pig->csum = ip_compute_csum(igmp_hdr(skb), igmplen);
 
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index ba4186e..1f58594 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2989,7 +2989,8 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 		swap(gso_skb->truesize, skb->truesize);
 	}
 
-	delta = htonl(oldlen + (skb->tail - skb->transport_header) +
+	delta = htonl(oldlen + (skb_tail_pointer(skb) -
+				skb_transport_header(skb)) +
 		      skb->data_len);
 	th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
 				(__force u32)delta));
-- 
cgit v0.10.2


From 158874cac61245b84e939c92c53db7000122b7b0 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Tue, 28 May 2013 20:34:28 +0000
Subject: sctp: Correct access to skb->{network, transport}_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case sk_buff_data_t will be a pointer, however,
skb->{network,transport}_header is now __u16.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/input.c b/net/sctp/input.c
index 4b2c831..e328fe8 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -589,7 +589,7 @@ void sctp_v4_err(struct sk_buff *skb, __u32 info)
 	struct sctp_association *asoc = NULL;
 	struct sctp_transport *transport;
 	struct inet_sock *inet;
-	sk_buff_data_t saveip, savesctp;
+	__be16 saveip, savesctp;
 	int err;
 	struct net *net = dev_net(skb->dev);
 
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 391a245..8ee553b 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -153,7 +153,7 @@ SCTP_STATIC void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	struct sctp_association *asoc;
 	struct sctp_transport *transport;
 	struct ipv6_pinfo *np;
-	sk_buff_data_t saveip, savesctp;
+	__be16 saveip, savesctp;
 	int err;
 	struct net *net = dev_net(skb->dev);
 
-- 
cgit v0.10.2


From 7cc461900549fc480eb133948649a1edb7eaaa6f Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Tue, 28 May 2013 20:34:29 +0000
Subject: net, ipv4, ipv6: Correct assignment of skb->network_header to
 skb->tail

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer however skb->network_header is now
an offset.

This patch corrects the problem by adding a wrapper to return skb tail as
an offset regardless of the value of NET_SKBUFF_DATA_USES_OFFSET. It seems
that skb->tail that this offset may be more than 64k and some care has been
taken to treat such cases as an error.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 8f2b830..5f93119 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1391,6 +1391,11 @@ static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
 	skb_reset_tail_pointer(skb);
 	skb->tail += offset;
 }
+
+static inline unsigned long skb_tail_offset(const struct sk_buff *skb)
+{
+	return skb->tail;
+}
 #else /* NET_SKBUFF_DATA_USES_OFFSET */
 static inline unsigned char *skb_tail_pointer(const struct sk_buff *skb)
 {
@@ -1407,6 +1412,10 @@ static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
 	skb->tail = skb->data + offset;
 }
 
+static inline unsigned long skb_tail_offset(const struct sk_buff *skb)
+{
+	return skb->tail - skb->head;
+}
 #endif /* NET_SKBUFF_DATA_USES_OFFSET */
 
 /*
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 37deedd..688517c 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -676,6 +676,8 @@ static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo
 
 		spin_lock_irqsave(&npinfo->rx_lock, flags);
 		list_for_each_entry_safe(np, tmp, &npinfo->rx_np, rx) {
+			unsigned long tail_offset;
+
 			if (!ipv6_addr_equal(daddr, &np->local_ip.in6))
 				continue;
 
@@ -700,7 +702,12 @@ static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo
 			hdr->saddr = *saddr;
 			hdr->daddr = *daddr;
 
-			send_skb->transport_header = send_skb->tail;
+			tail_offset = skb_tail_offset(skb);
+			if (tail_offset > 0xffff) {
+				kfree_skb(send_skb);
+				continue;
+			}
+			skb_set_network_header(send_skb, tail_offset);
 			skb_put(send_skb, size);
 
 			icmp6h = (struct icmp6hdr *)skb_transport_header(skb);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 795498f..d2ede89 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2642,6 +2642,7 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 	__be16 *svlan_tci = NULL;                /* Encapsulates priority and SVLAN ID */
 	__be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */
 	u16 queue_map;
+	unsigned long tail_offset;
 
 	if (pkt_dev->nr_labels)
 		protocol = htons(ETH_P_MPLS_UC);
@@ -2708,7 +2709,12 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 		*vlan_encapsulated_proto = htons(ETH_P_IP);
 	}
 
-	skb->network_header = skb->tail;
+	tail_offset = skb_tail_offset(skb);
+	if (tail_offset > 0xffff) {
+		kfree_skb(skb);
+		return NULL;
+	}
+	skb_set_network_header(skb, tail_offset);
 	skb->transport_header = skb->network_header + sizeof(struct iphdr);
 	skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr));
 	skb_set_queue_mapping(skb, queue_map);
@@ -2775,6 +2781,7 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 	__be16 *svlan_tci = NULL;                /* Encapsulates priority and SVLAN ID */
 	__be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */
 	u16 queue_map;
+	unsigned long tail_offset;
 
 	if (pkt_dev->nr_labels)
 		protocol = htons(ETH_P_MPLS_UC);
@@ -2822,7 +2829,12 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 		*vlan_encapsulated_proto = htons(ETH_P_IPV6);
 	}
 
-	skb->network_header = skb->tail;
+	tail_offset = skb_tail_offset(skb);
+	if (tail_offset > 0xffff) {
+		kfree_skb(skb);
+		return NULL;
+	}
+	skb_set_network_header(skb, tail_offset);
 	skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
 	skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr));
 	skb_set_queue_mapping(skb, queue_map);
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index f975399..df97f0a 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -945,6 +945,7 @@ static int ipmr_cache_report(struct mr_table *mrt,
 	struct igmpmsg *msg;
 	struct sock *mroute_sk;
 	int ret;
+	unsigned long tail_offset;
 
 #ifdef CONFIG_IP_PIMSM
 	if (assert == IGMPMSG_WHOLEPKT)
@@ -980,7 +981,12 @@ static int ipmr_cache_report(struct mr_table *mrt,
 
 	/* Copy the IP header */
 
-	skb->network_header = skb->tail;
+	tail_offset = skb_tail_offset(skb);
+	if (tail_offset > 0xffff) {
+		kfree_skb(skb);
+		return -EINVAL;
+	}
+	skb_set_network_header(skb, tail_offset);
 	skb_put(skb, ihl);
 	skb_copy_to_linear_data(skb, pkt->data, ihl);
 	ip_hdr(skb)->protocol = 0;	/* Flag to the kernel this is a route add */
-- 
cgit v0.10.2


From 784e4616a40166fc60a1741a2c64155e99fe9247 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Mon, 27 May 2013 22:35:51 +0000
Subject: vxlan: remove the unused rcu head from struct vxlan_rdst

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 5ed64d4..289d79a 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -97,7 +97,6 @@ struct vxlan_net {
 };
 
 struct vxlan_rdst {
-	struct rcu_head		 rcu;
 	__be32			 remote_ip;
 	__be16			 remote_port;
 	u32			 remote_vni;
-- 
cgit v0.10.2


From 31fec5aa21d166cf81702a669c1398784b513b8a Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Mon, 27 May 2013 22:35:52 +0000
Subject: vxlan: use unsigned int instead of unsigned

'unsigned int' is slightly better.

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 289d79a..6fc9620 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1269,7 +1269,7 @@ static int vxlan_open(struct net_device *dev)
 /* Purge the forwarding table */
 static void vxlan_flush(struct vxlan_dev *vxlan)
 {
-	unsigned h;
+	unsigned int h;
 
 	spin_lock_bh(&vxlan->hash_lock);
 	for (h = 0; h < FDB_HASH_SIZE; ++h) {
@@ -1333,7 +1333,7 @@ static void vxlan_free(struct net_device *dev)
 static void vxlan_setup(struct net_device *dev)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
-	unsigned h;
+	unsigned int h;
 	int low, high;
 
 	eth_hw_addr_random(dev);
@@ -1459,7 +1459,7 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port)
 		.sin_addr.s_addr = htonl(INADDR_ANY),
 	};
 	int rc;
-	unsigned h;
+	unsigned int h;
 
 	vs = kmalloc(sizeof(*vs), GFP_KERNEL);
 	if (!vs)
@@ -1722,7 +1722,7 @@ static struct rtnl_link_ops vxlan_link_ops __read_mostly = {
 static __net_init int vxlan_init_net(struct net *net)
 {
 	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
-	unsigned h;
+	unsigned int h;
 
 	INIT_LIST_HEAD(&vn->vxlan_list);
 
-- 
cgit v0.10.2


From 7332a13b038be05cf44fcf0cacfdd8aade77b16f Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Mon, 27 May 2013 22:35:53 +0000
Subject: vxlan: defer vxlan init as late as possible

When vxlan is compiled as builtin, its init code
runs before IPv6 init, this could cause problems
if we create IPv6 socket in the latter patch.

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 6fc9620..8111565 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1771,7 +1771,7 @@ out2:
 out1:
 	return rc;
 }
-module_init(vxlan_init_module);
+late_initcall(vxlan_init_module);
 
 static void __exit vxlan_cleanup_module(void)
 {
-- 
cgit v0.10.2


From 43547ea669926b2ef8ba62a9def7b2c5728b3cdd Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 27 May 2013 23:14:51 +0000
Subject: bonding: trivial: remove unused parameter from alb_swap_mac_addr()

After b924551 ("bonding: fix enslaving in alb mode when link down") we
don't need the bond parameter in alb_swap_mac_addr(), so remove it.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index e02cc26..a236234 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1056,7 +1056,7 @@ static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[])
  *
  */
 
-static void alb_swap_mac_addr(struct bonding *bond, struct slave *slave1, struct slave *slave2)
+static void alb_swap_mac_addr(struct slave *slave1, struct slave *slave2)
 {
 	u8 tmp_mac_addr[ETH_ALEN];
 
@@ -1149,7 +1149,7 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla
 
 		if (found) {
 			/* locking: needs RTNL and nothing else */
-			alb_swap_mac_addr(bond, slave, tmp_slave);
+			alb_swap_mac_addr(slave, tmp_slave);
 			alb_fasten_mac_swap(bond, slave, tmp_slave);
 		}
 	}
@@ -1750,7 +1750,7 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
 	/* curr_active_slave must be set before calling alb_swap_mac_addr */
 	if (swap_slave) {
 		/* swap mac address */
-		alb_swap_mac_addr(bond, swap_slave, new_slave);
+		alb_swap_mac_addr(swap_slave, new_slave);
 	} else {
 		/* set the new_slave to the bond mac address */
 		alb_set_slave_mac_addr(new_slave, bond->dev->dev_addr);
@@ -1810,7 +1810,7 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr)
 	}
 
 	if (swap_slave) {
-		alb_swap_mac_addr(bond, swap_slave, bond->curr_active_slave);
+		alb_swap_mac_addr(swap_slave, bond->curr_active_slave);
 		alb_fasten_mac_swap(bond, swap_slave, bond->curr_active_slave);
 	} else {
 		alb_set_slave_mac_addr(bond->curr_active_slave, bond_dev->dev_addr);
-- 
cgit v0.10.2


From d6641ccff9b4d3b0d526e754dceaa4c430f5d24f Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Tue, 28 May 2013 01:26:13 +0000
Subject: bonding: trivial: update the comments to reflect the reality

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 3d269a5..f8bee4c 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -231,8 +231,7 @@ static ssize_t bonding_show_slaves(struct device *d,
 }
 
 /*
- * Set the slaves in the current bond.  The bond interface must be
- * up for this to succeed.
+ * Set the slaves in the current bond.
  * This is supposed to be only thin wrapper for bond_enslave and bond_release.
  * All hard work should be done there.
  */
@@ -363,7 +362,6 @@ static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
 
 /*
  * Show and set the bonding transmit hash method.
- * The bond interface must be down to change the xmit hash policy.
  */
 static ssize_t bonding_show_xmit_hash(struct device *d,
 				      struct device_attribute *attr,
-- 
cgit v0.10.2


From 9ee718aa9269cf56040cf12f0f6ac6e0057397b2 Mon Sep 17 00:00:00 2001
From: Eytan Lifshitz <eytan.lifshitz@intel.com>
Date: Sun, 19 May 2013 19:14:41 +0300
Subject: iwlwifi: mvm: add thermal throttling and CT kill

In order to avoid NIC destruction due to high temperature,
CT kill will power down the NIC.

To avoid this, thermal throttling will decrease throughput
to prevent the NIC from reaching the temperature at which
CT kill is performed.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index 20e845d..a276af4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -472,4 +472,23 @@
 #define IWL_HOST_INT_CALIB_TIMEOUT_DEF	(0x10)
 #define IWL_HOST_INT_CALIB_TIMEOUT_MIN	(0x0)
 
+/*****************************************************************************
+ *                        7000/3000 series SHR DTS addresses                 *
+ *****************************************************************************/
+
+/* Diode Results Register Structure: */
+enum dtd_diode_reg {
+	DTS_DIODE_REG_DIG_VAL			= 0x000000FF, /* bits [7:0] */
+	DTS_DIODE_REG_VREF_LOW			= 0x0000FF00, /* bits [15:8] */
+	DTS_DIODE_REG_VREF_HIGH			= 0x00FF0000, /* bits [23:16] */
+	DTS_DIODE_REG_VREF_ID			= 0x03000000, /* bits [25:24] */
+	DTS_DIODE_REG_PASS_ONCE			= 0x80000000, /* bits [31:31] */
+	DTS_DIODE_REG_FLAGS_MSK			= 0xFF000000, /* bits [31:24] */
+/* Those are the masks INSIDE the flags bit-field: */
+	DTS_DIODE_REG_FLAGS_VREFS_ID_POS	= 0,
+	DTS_DIODE_REG_FLAGS_VREFS_ID		= 0x00000003, /* bits [1:0] */
+	DTS_DIODE_REG_FLAGS_PASS_ONCE_POS	= 7,
+	DTS_DIODE_REG_FLAGS_PASS_ONCE		= 0x00000080, /* bits [7:7] */
+};
+
 #endif /* !__iwl_csr_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index 386f2a7..ff8cc75 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -100,6 +100,18 @@
 /* Device system time */
 #define DEVICE_SYSTEM_TIME_REG 0xA0206C
 
+/*****************************************************************************
+ *                        7000/3000 series SHR DTS addresses                 *
+ *****************************************************************************/
+
+#define SHR_MISC_WFM_DTS_EN	(0x00a10024)
+#define DTSC_CFG_MODE		(0x00a10604)
+#define DTSC_VREF_AVG		(0x00a10648)
+#define DTSC_VREF5_AVG		(0x00a1064c)
+#define DTSC_CFG_MODE_PERIODIC	(0x2)
+#define DTSC_PTAT_AVG		(0x00a10650)
+
+
 /**
  * Tx Scheduler
  *
diff --git a/drivers/net/wireless/iwlwifi/mvm/Makefile b/drivers/net/wireless/iwlwifi/mvm/Makefile
index 2acc44b..ff856e5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/Makefile
+++ b/drivers/net/wireless/iwlwifi/mvm/Makefile
@@ -3,7 +3,7 @@ iwlmvm-y += fw.o mac80211.o nvm.o ops.o phy-ctxt.o mac-ctxt.o
 iwlmvm-y += utils.o rx.o tx.o binding.o quota.o sta.o
 iwlmvm-y += scan.o time-event.o rs.o
 iwlmvm-y += power.o bt-coex.o
-iwlmvm-y += led.o
+iwlmvm-y += led.o tt.o
 iwlmvm-$(CONFIG_IWLWIFI_DEBUGFS) += debugfs.o
 iwlmvm-$(CONFIG_PM_SLEEP) += d3.o
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 810bfa5..f03655f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -351,6 +351,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	enum ieee80211_band band;
 	int ave_rssi;
 
+	lockdep_assert_held(&mvm->mutex);
 	if (vif->type != NL80211_IFTYPE_STATION)
 		return;
 
@@ -365,7 +366,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
 	if (band != IEEE80211_BAND_2GHZ) {
-		ieee80211_request_smps(vif, smps_mode);
+		iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
+				    smps_mode);
 		return;
 	}
 
@@ -380,7 +382,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 		       mvmvif->id,  data->notif->bt_status,
 		       data->notif->bt_traffic_load, smps_mode);
 
-	ieee80211_request_smps(vif, smps_mode);
+	iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
 
 	/* don't reduce the Tx power if in loose scheme */
 	if (is_loose_coex())
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 733153c..db6f474 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -139,6 +139,9 @@ enum {
 	/* Power */
 	POWER_TABLE_CMD = 0x77,
 
+	/* Thermal Throttling*/
+	REPLY_THERMAL_MNG_BACKOFF = 0x7e,
+
 	/* Scanning */
 	SCAN_REQUEST_CMD = 0x80,
 	SCAN_ABORT_CMD = 0x81,
@@ -977,4 +980,212 @@ struct iwl_mcast_filter_cmd {
 	u8 addr_list[0];
 } __packed; /* MCAST_FILTERING_CMD_API_S_VER_1 */
 
+struct mvm_statistics_dbg {
+	__le32 burst_check;
+	__le32 burst_count;
+	__le32 wait_for_silence_timeout_cnt;
+	__le32 reserved[3];
+} __packed; /* STATISTICS_DEBUG_API_S_VER_2 */
+
+struct mvm_statistics_div {
+	__le32 tx_on_a;
+	__le32 tx_on_b;
+	__le32 exec_time;
+	__le32 probe_time;
+	__le32 rssi_ant;
+	__le32 reserved2;
+} __packed; /* STATISTICS_SLOW_DIV_API_S_VER_2 */
+
+struct mvm_statistics_general_common {
+	__le32 temperature;   /* radio temperature */
+	__le32 temperature_m; /* radio voltage */
+	struct mvm_statistics_dbg dbg;
+	__le32 sleep_time;
+	__le32 slots_out;
+	__le32 slots_idle;
+	__le32 ttl_timestamp;
+	struct mvm_statistics_div div;
+	__le32 rx_enable_counter;
+	/*
+	 * num_of_sos_states:
+	 *  count the number of times we have to re-tune
+	 *  in order to get out of bad PHY status
+	 */
+	__le32 num_of_sos_states;
+} __packed; /* STATISTICS_GENERAL_API_S_VER_5 */
+
+struct mvm_statistics_rx_non_phy {
+	__le32 bogus_cts;	/* CTS received when not expecting CTS */
+	__le32 bogus_ack;	/* ACK received when not expecting ACK */
+	__le32 non_bssid_frames;	/* number of frames with BSSID that
+					 * doesn't belong to the STA BSSID */
+	__le32 filtered_frames;	/* count frames that were dumped in the
+				 * filtering process */
+	__le32 non_channel_beacons;	/* beacons with our bss id but not on
+					 * our serving channel */
+	__le32 channel_beacons;	/* beacons with our bss id and in our
+				 * serving channel */
+	__le32 num_missed_bcon;	/* number of missed beacons */
+	__le32 adc_rx_saturation_time;	/* count in 0.8us units the time the
+					 * ADC was in saturation */
+	__le32 ina_detection_search_time;/* total time (in 0.8us) searched
+					  * for INA */
+	__le32 beacon_silence_rssi_a;	/* RSSI silence after beacon frame */
+	__le32 beacon_silence_rssi_b;	/* RSSI silence after beacon frame */
+	__le32 beacon_silence_rssi_c;	/* RSSI silence after beacon frame */
+	__le32 interference_data_flag;	/* flag for interference data
+					 * availability. 1 when data is
+					 * available. */
+	__le32 channel_load;		/* counts RX Enable time in uSec */
+	__le32 dsp_false_alarms;	/* DSP false alarm (both OFDM
+					 * and CCK) counter */
+	__le32 beacon_rssi_a;
+	__le32 beacon_rssi_b;
+	__le32 beacon_rssi_c;
+	__le32 beacon_energy_a;
+	__le32 beacon_energy_b;
+	__le32 beacon_energy_c;
+	__le32 num_bt_kills;
+	__le32 mac_id;
+	__le32 directed_data_mpdu;
+} __packed; /* STATISTICS_RX_NON_PHY_API_S_VER_3 */
+
+struct mvm_statistics_rx_phy {
+	__le32 ina_cnt;
+	__le32 fina_cnt;
+	__le32 plcp_err;
+	__le32 crc32_err;
+	__le32 overrun_err;
+	__le32 early_overrun_err;
+	__le32 crc32_good;
+	__le32 false_alarm_cnt;
+	__le32 fina_sync_err_cnt;
+	__le32 sfd_timeout;
+	__le32 fina_timeout;
+	__le32 unresponded_rts;
+	__le32 rxe_frame_limit_overrun;
+	__le32 sent_ack_cnt;
+	__le32 sent_cts_cnt;
+	__le32 sent_ba_rsp_cnt;
+	__le32 dsp_self_kill;
+	__le32 mh_format_err;
+	__le32 re_acq_main_rssi_sum;
+	__le32 reserved;
+} __packed; /* STATISTICS_RX_PHY_API_S_VER_2 */
+
+struct mvm_statistics_rx_ht_phy {
+	__le32 plcp_err;
+	__le32 overrun_err;
+	__le32 early_overrun_err;
+	__le32 crc32_good;
+	__le32 crc32_err;
+	__le32 mh_format_err;
+	__le32 agg_crc32_good;
+	__le32 agg_mpdu_cnt;
+	__le32 agg_cnt;
+	__le32 unsupport_mcs;
+} __packed;  /* STATISTICS_HT_RX_PHY_API_S_VER_1 */
+
+#define MAX_CHAINS 3
+
+struct mvm_statistics_tx_non_phy_agg {
+	__le32 ba_timeout;
+	__le32 ba_reschedule_frames;
+	__le32 scd_query_agg_frame_cnt;
+	__le32 scd_query_no_agg;
+	__le32 scd_query_agg;
+	__le32 scd_query_mismatch;
+	__le32 frame_not_ready;
+	__le32 underrun;
+	__le32 bt_prio_kill;
+	__le32 rx_ba_rsp_cnt;
+	__s8 txpower[MAX_CHAINS];
+	__s8 reserved;
+	__le32 reserved2;
+} __packed; /* STATISTICS_TX_NON_PHY_AGG_API_S_VER_1 */
+
+struct mvm_statistics_tx_channel_width {
+	__le32 ext_cca_narrow_ch20[1];
+	__le32 ext_cca_narrow_ch40[2];
+	__le32 ext_cca_narrow_ch80[3];
+	__le32 ext_cca_narrow_ch160[4];
+	__le32 last_tx_ch_width_indx;
+	__le32 rx_detected_per_ch_width[4];
+	__le32 success_per_ch_width[4];
+	__le32 fail_per_ch_width[4];
+}; /* STATISTICS_TX_CHANNEL_WIDTH_API_S_VER_1 */
+
+struct mvm_statistics_tx {
+	__le32 preamble_cnt;
+	__le32 rx_detected_cnt;
+	__le32 bt_prio_defer_cnt;
+	__le32 bt_prio_kill_cnt;
+	__le32 few_bytes_cnt;
+	__le32 cts_timeout;
+	__le32 ack_timeout;
+	__le32 expected_ack_cnt;
+	__le32 actual_ack_cnt;
+	__le32 dump_msdu_cnt;
+	__le32 burst_abort_next_frame_mismatch_cnt;
+	__le32 burst_abort_missing_next_frame_cnt;
+	__le32 cts_timeout_collision;
+	__le32 ack_or_ba_timeout_collision;
+	struct mvm_statistics_tx_non_phy_agg agg;
+	struct mvm_statistics_tx_channel_width channel_width;
+} __packed; /* STATISTICS_TX_API_S_VER_4 */
+
+
+struct mvm_statistics_bt_activity {
+	__le32 hi_priority_tx_req_cnt;
+	__le32 hi_priority_tx_denied_cnt;
+	__le32 lo_priority_tx_req_cnt;
+	__le32 lo_priority_tx_denied_cnt;
+	__le32 hi_priority_rx_req_cnt;
+	__le32 hi_priority_rx_denied_cnt;
+	__le32 lo_priority_rx_req_cnt;
+	__le32 lo_priority_rx_denied_cnt;
+} __packed;  /* STATISTICS_BT_ACTIVITY_API_S_VER_1 */
+
+struct mvm_statistics_general {
+	struct mvm_statistics_general_common common;
+	__le32 beacon_filtered;
+	__le32 missed_beacons;
+	__s8 beacon_filter_everage_energy;
+	__s8 beacon_filter_reason;
+	__s8 beacon_filter_current_energy;
+	__s8 beacon_filter_reserved;
+	__le32 beacon_filter_delta_time;
+	struct mvm_statistics_bt_activity bt_activity;
+} __packed; /* STATISTICS_GENERAL_API_S_VER_5 */
+
+struct mvm_statistics_rx {
+	struct mvm_statistics_rx_phy ofdm;
+	struct mvm_statistics_rx_phy cck;
+	struct mvm_statistics_rx_non_phy general;
+	struct mvm_statistics_rx_ht_phy ofdm_ht;
+} __packed; /* STATISTICS_RX_API_S_VER_3 */
+
+/*
+ * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
+ *
+ * By default, uCode issues this notification after receiving a beacon
+ * while associated.  To disable this behavior, set DISABLE_NOTIF flag in the
+ * REPLY_STATISTICS_CMD 0x9c, above.
+ *
+ * Statistics counters continue to increment beacon after beacon, but are
+ * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
+ * 0x9c with CLEAR_STATS bit set (see above).
+ *
+ * uCode also issues this notification during scans.  uCode clears statistics
+ * appropriately so that each notification contains statistics for only the
+ * one channel that has just been scanned.
+ */
+
+struct iwl_notif_statistics { /* STATISTICS_NTFY_API_S_VER_8 */
+	__le32 flag;
+	struct mvm_statistics_rx rx;
+	struct mvm_statistics_tx tx;
+	struct mvm_statistics_general general;
+} __packed;
+
 #endif /* __fw_api_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 20ee2812..cd7c003 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -330,7 +330,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 	 * abort after reading the nvm in case RF Kill is on, we will complete
 	 * the init seq later when RF kill will switch to off
 	 */
-	if (test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status)) {
+	if (iwl_mvm_is_radio_killed(mvm)) {
 		IWL_DEBUG_RF_KILL(mvm,
 				  "jump over all phy activities due to RF kill\n");
 		iwl_remove_notification(&mvm->notif_wait, &calib_wait);
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index b2cc3d9..dc5f4ef 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -227,7 +227,7 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 		.found_vif = false,
 	};
 	u32 ac;
-	int ret;
+	int ret, i;
 
 	/*
 	 * Allocate a MAC ID and a TSF for this MAC, along with the queues
@@ -335,6 +335,9 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 	mvmvif->bcast_sta.sta_id = IWL_MVM_STATION_COUNT;
 	mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
 
+	for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++)
+		mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC;
+
 	return 0;
 
 exit_fail:
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index c9924c1..c26f6b5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -265,8 +265,8 @@ static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 
-	if (test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status)) {
-		IWL_DEBUG_DROP(mvm, "Dropping - RF KILL\n");
+	if (iwl_mvm_is_radio_killed(mvm)) {
+		IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
 		goto drop;
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 4e87a32..a288552 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -150,6 +150,12 @@ enum iwl_power_scheme {
 
 #define IWL_CONN_MAX_LISTEN_INTERVAL	70
 
+enum iwl_mvm_smps_type_request {
+	IWL_MVM_SMPS_REQ_BT_COEX,
+	IWL_MVM_SMPS_REQ_TT,
+	NUM_IWL_MVM_SMPS_REQ,
+};
+
 /**
  * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context
  * @id: between 0 and 3
@@ -164,6 +170,8 @@ enum iwl_power_scheme {
  * @bcast_sta: station used for broadcast packets. Used by the following
  *  vifs: P2P_DEVICE, GO and AP.
  * @beacon_skb: the skb used to hold the AP/GO beacon template
+ * @smps_requests: the requests of of differents parts of the driver, regard
+	the desired smps mode.
  */
 struct iwl_mvm_vif {
 	u16 id;
@@ -218,6 +226,8 @@ struct iwl_mvm_vif {
 	struct dentry *dbgfs_slink;
 	void *dbgfs_data;
 #endif
+
+	enum ieee80211_smps_mode smps_requests[NUM_IWL_MVM_SMPS_REQ];
 };
 
 static inline struct iwl_mvm_vif *
@@ -226,12 +236,6 @@ iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
 	return (void *)vif->drv_priv;
 }
 
-enum iwl_mvm_status {
-	IWL_MVM_STATUS_HW_RFKILL,
-	IWL_MVM_STATUS_ROC_RUNNING,
-	IWL_MVM_STATUS_IN_HW_RESTART,
-};
-
 enum iwl_scan_status {
 	IWL_MVM_SCAN_NONE,
 	IWL_MVM_SCAN_OS,
@@ -249,6 +253,63 @@ struct iwl_nvm_section {
 	const u8 *data;
 };
 
+/*
+ * Tx-backoff threshold
+ * @temperature: The threshold in Celsius
+ * @backoff: The tx-backoff in uSec
+ */
+struct iwl_tt_tx_backoff {
+	s32 temperature;
+	u32 backoff;
+};
+
+#define TT_TX_BACKOFF_SIZE 6
+
+/**
+ * struct iwl_tt_params - thermal throttling parameters
+ * @ct_kill_entry: CT Kill entry threshold
+ * @ct_kill_exit: CT Kill exit threshold
+ * @ct_kill_duration: The time  intervals (in uSec) in which the driver needs
+ *	to checks whether to exit CT Kill.
+ * @dynamic_smps_entry: Dynamic SMPS entry threshold
+ * @dynamic_smps_exit: Dynamic SMPS exit threshold
+ * @tx_protection_entry: TX protection entry threshold
+ * @tx_protection_exit: TX protection exit threshold
+ * @tx_backoff: Array of thresholds for tx-backoff , in ascending order.
+ * @support_ct_kill: Support CT Kill?
+ * @support_dynamic_smps: Support dynamic SMPS?
+ * @support_tx_protection: Support tx protection?
+ * @support_tx_backoff: Support tx-backoff?
+ */
+struct iwl_tt_params {
+	s32 ct_kill_entry;
+	s32 ct_kill_exit;
+	u32 ct_kill_duration;
+	s32 dynamic_smps_entry;
+	s32 dynamic_smps_exit;
+	s32 tx_protection_entry;
+	s32 tx_protection_exit;
+	struct iwl_tt_tx_backoff tx_backoff[TT_TX_BACKOFF_SIZE];
+	bool support_ct_kill;
+	bool support_dynamic_smps;
+	bool support_tx_protection;
+	bool support_tx_backoff;
+};
+
+/**
+ * struct iwl_mvm_tt_mgnt - Thermal Throttling Management structure
+ * @ct_kill_exit: worker to exit thermal kill
+ * @dynamic_smps: Is thermal throttling enabled dynamic_smps?
+ * @tx_backoff: The current thremal throttling tx backoff in uSec.
+ * @params: Parameters to configure the thermal throttling algorithm.
+ */
+struct iwl_mvm_tt_mgmt {
+	struct delayed_work ct_kill_exit;
+	bool dynamic_smps;
+	u32 tx_backoff;
+	const struct iwl_tt_params *params;
+};
+
 struct iwl_mvm {
 	/* for logger access */
 	struct device *dev;
@@ -356,6 +417,10 @@ struct iwl_mvm {
 	/* BT-Coex */
 	u8 bt_kill_msk;
 	struct iwl_bt_coex_profile_notif last_bt_notif;
+
+	/* Thermal Throttling and CTkill */
+	struct iwl_mvm_tt_mgmt thermal_throttle;
+	s32 temperature;	/* Celsius */
 };
 
 /* Extract MVM priv from op_mode and _hw */
@@ -365,6 +430,19 @@ struct iwl_mvm {
 #define IWL_MAC80211_GET_MVM(_hw)			\
 	IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))
 
+enum iwl_mvm_status {
+	IWL_MVM_STATUS_HW_RFKILL,
+	IWL_MVM_STATUS_HW_CTKILL,
+	IWL_MVM_STATUS_ROC_RUNNING,
+	IWL_MVM_STATUS_IN_HW_RESTART,
+};
+
+static inline bool iwl_mvm_is_radio_killed(struct iwl_mvm *mvm)
+{
+	return test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status) ||
+	       test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
+}
+
 extern const u8 iwl_mvm_ac_to_tx_fifo[];
 
 struct iwl_rate_info {
@@ -555,4 +633,15 @@ int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
 				  struct ieee80211_vif *vif);
 
+/* SMPS */
+void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
+				enum iwl_mvm_smps_type_request req_type,
+				enum ieee80211_smps_mode smps_request);
+
+/* Thermal management and CT-kill */
+void iwl_mvm_tt_handler(struct iwl_mvm *mvm);
+void iwl_mvm_tt_initialize(struct iwl_mvm *mvm);
+void iwl_mvm_tt_exit(struct iwl_mvm *mvm);
+void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state);
+
 #endif /* __IWL_MVM_H__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 7998bac..8431637 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -222,6 +222,7 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 
 	RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
 	RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, false),
+	RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
 
 	RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
 	RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
@@ -294,6 +295,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(BT_CONFIG),
 	CMD(MCAST_FILTER_CMD),
 	CMD(REPLY_BEACON_FILTERING_CMD),
+	CMD(REPLY_THERMAL_MNG_BACKOFF),
 };
 #undef CMD
 
@@ -394,6 +396,8 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	if (err)
 		goto out_free;
 
+	iwl_mvm_tt_initialize(mvm);
+
 	mutex_lock(&mvm->mutex);
 	err = iwl_run_init_mvm_ucode(mvm, true);
 	mutex_unlock(&mvm->mutex);
@@ -441,6 +445,8 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
 
 	iwl_mvm_leds_exit(mvm);
 
+	iwl_mvm_tt_exit(mvm);
+
 	ieee80211_unregister_hw(mvm->hw);
 
 	kfree(mvm->scan_cmd);
@@ -595,6 +601,16 @@ static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
 	ieee80211_wake_queue(mvm->hw, mq);
 }
 
+void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
+{
+	if (state)
+		set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
+	else
+		clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
+
+	wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
+}
+
 static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
@@ -604,7 +620,7 @@ static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
 	else
 		clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 
-	wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
+	wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 }
 
 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 55334d5..6a050c6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -3080,3 +3080,29 @@ void iwl_mvm_rate_control_unregister(void)
 {
 	ieee80211_rate_control_unregister(&rs_mvm_ops);
 }
+
+/**
+ * iwl_mvm_tx_protection - Gets LQ command, change it to enable/disable
+ * Tx protection, according to this rquest and previous requests,
+ * and send the LQ command.
+ * @lq: The LQ command
+ * @mvmsta: The station
+ * @enable: Enable Tx protection?
+ */
+int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
+			  struct iwl_mvm_sta *mvmsta, bool enable)
+{
+	lockdep_assert_held(&mvm->mutex);
+
+	if (enable) {
+		if (mvmsta->tx_protection == 0)
+			lq->flags |= LQ_FLAG_SET_STA_TLC_RTS_MSK;
+		mvmsta->tx_protection++;
+	} else {
+		mvmsta->tx_protection--;
+		if (mvmsta->tx_protection == 0)
+			lq->flags &= ~LQ_FLAG_SET_STA_TLC_RTS_MSK;
+	}
+
+	return iwl_mvm_send_lq_cmd(mvm, lq, CMD_ASYNC, false);
+}
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index 219c685..f66155a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -390,4 +390,9 @@ extern int iwl_mvm_rate_control_register(void);
  */
 extern void iwl_mvm_rate_control_unregister(void);
 
+struct iwl_mvm_sta;
+
+int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
+			  struct iwl_mvm_sta *mvmsta, bool enable);
+
 #endif /* __rs__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 4dfc21a..e4930d5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -363,3 +363,25 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 					rxb, &rx_status);
 	return 0;
 }
+
+/*
+ * iwl_mvm_rx_statistics - STATISTICS_NOTIFICATION handler
+ *
+ * TODO: This handler is implemented partially.
+ * It only gets the NIC's temperature.
+ */
+int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
+			  struct iwl_rx_cmd_buffer *rxb,
+			  struct iwl_device_cmd *cmd)
+{
+	struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	struct iwl_notif_statistics *stats = (void *)&pkt->data;
+	struct mvm_statistics_general_common *common = &stats->general.common;
+
+	if (mvm->temperature != le32_to_cpu(common->temperature)) {
+		mvm->temperature = le32_to_cpu(common->temperature);
+		iwl_mvm_tt_handler(mvm);
+	}
+
+	return 0;
+}
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index 5c664ed..2278858 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -64,6 +64,7 @@
 
 #include "mvm.h"
 #include "sta.h"
+#include "rs.h"
 
 static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm)
 {
@@ -217,6 +218,8 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm,
 						      mvmvif->color);
 	mvm_sta->vif = vif;
 	mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
+	mvm_sta->tx_protection = 0;
+	mvm_sta->tt_tx_protection = false;
 
 	/* HW restart, don't assume the memory has been zeroed */
 	atomic_set(&mvm->pending_frames[sta_id], 0);
@@ -798,21 +801,23 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		min(mvmsta->max_agg_bufsize, buf_size);
 	mvmsta->lq_sta.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize;
 
+	IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n",
+		     sta->addr, tid);
+
 	if (mvm->cfg->ht_params->use_rts_for_aggregation) {
 		/*
 		 * switch to RTS/CTS if it is the prefer protection
 		 * method for HT traffic
+		 * this function also sends the LQ command
 		 */
-		mvmsta->lq_sta.lq.flags |= LQ_FLAG_SET_STA_TLC_RTS_MSK;
+		return iwl_mvm_tx_protection(mvm, &mvmsta->lq_sta.lq,
+					     mvmsta, true);
 		/*
 		 * TODO: remove the TLC_RTS flag when we tear down the last
 		 * AGG session (agg_tids_count in DVM)
 		 */
 	}
 
-	IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n",
-		     sta->addr, tid);
-
 	return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.lq, CMD_ASYNC, false);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h
index a4ddce7..3efa0a0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.h
@@ -275,6 +275,8 @@ struct iwl_mvm_tid_data {
  * @lock: lock to protect the whole struct. Since %tid_data is access from Tx
  * and from Tx response flow, it needs a spinlock.
  * @tid_data: per tid data. Look at %iwl_mvm_tid_data.
+ * @tx_protection: reference counter for controlling the Tx protection.
+ * @tt_tx_protection: is thermal throttling enable Tx protection?
  *
  * When mac80211 creates a station it reserves some space (hw->sta_data_size)
  * in the structure for use by driver. This structure is placed in that
@@ -296,6 +298,10 @@ struct iwl_mvm_sta {
 #ifdef CONFIG_PM_SLEEP
 	u16 last_seq_ctl;
 #endif
+
+	/* Temporary, until the new TLC will control the Tx protection */
+	s8 tx_protection;
+	bool tt_tx_protection;
 };
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/mvm/tt.c b/drivers/net/wireless/iwlwifi/mvm/tt.c
new file mode 100644
index 0000000..4665fc0
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/mvm/tt.c
@@ -0,0 +1,509 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2013 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+#include "mvm.h"
+#include "iwl-config.h"
+#include "iwl-io.h"
+#include "iwl-csr.h"
+#include "iwl-prph.h"
+
+#define OTP_DTS_DIODE_DEVIATION 96 /*in words*/
+/* VBG - Voltage Band Gap error data (temperature offset) */
+#define OTP_WP_DTS_VBG			(OTP_DTS_DIODE_DEVIATION + 2)
+#define MEAS_VBG_MIN_VAL		2300
+#define MEAS_VBG_MAX_VAL		3000
+#define MEAS_VBG_DEFAULT_VAL		2700
+#define DTS_DIODE_VALID(flags)		(flags & DTS_DIODE_REG_FLAGS_PASS_ONCE)
+#define MIN_TEMPERATURE			0
+#define MAX_TEMPERATURE			125
+#define TEMPERATURE_ERROR		(MAX_TEMPERATURE + 1)
+#define PTAT_DIGITAL_VALUE_MIN_VALUE	0
+#define PTAT_DIGITAL_VALUE_MAX_VALUE	0xFF
+#define DTS_VREFS_NUM			5
+static inline u32 DTS_DIODE_GET_VREFS_ID(u32 flags)
+{
+	return (flags & DTS_DIODE_REG_FLAGS_VREFS_ID) >>
+					DTS_DIODE_REG_FLAGS_VREFS_ID_POS;
+}
+
+#define CALC_VREFS_MIN_DIFF	43
+#define CALC_VREFS_MAX_DIFF	51
+#define CALC_LUT_SIZE		(1 + CALC_VREFS_MAX_DIFF - CALC_VREFS_MIN_DIFF)
+#define CALC_LUT_INDEX_OFFSET	CALC_VREFS_MIN_DIFF
+#define CALC_TEMPERATURE_RESULT_SHIFT_OFFSET	23
+
+/*
+ * @digital_value: The diode's digital-value sampled (temperature/voltage)
+ * @vref_low: The lower voltage-reference (the vref just below the diode's
+ *	sampled digital-value)
+ * @vref_high: The higher voltage-reference (the vref just above the diode's
+ *	sampled digital-value)
+ * @flags: bits[1:0]: The ID of the Vrefs pair (lowVref,highVref)
+ *	bits[6:2]: Reserved.
+ *	bits[7:7]: Indicates completion of at least 1 successful sample
+ *	since last DTS reset.
+ */
+struct iwl_mvm_dts_diode_bits {
+	u8 digital_value;
+	u8 vref_low;
+	u8 vref_high;
+	u8 flags;
+} __packed;
+
+union dts_diode_results {
+	u32 reg_value;
+	struct iwl_mvm_dts_diode_bits bits;
+} __packed;
+
+static s16 iwl_mvm_dts_get_volt_band_gap(struct iwl_mvm *mvm)
+{
+	struct iwl_nvm_section calib_sec;
+	const __le16 *calib;
+	u16 vbg;
+
+	/* TODO: move parsing to NVM code */
+	calib_sec = mvm->nvm_sections[NVM_SECTION_TYPE_CALIBRATION];
+	calib = (__le16 *)calib_sec.data;
+
+	vbg = le16_to_cpu(calib[OTP_WP_DTS_VBG]);
+
+	if (vbg < MEAS_VBG_MIN_VAL || vbg > MEAS_VBG_MAX_VAL)
+		vbg = MEAS_VBG_DEFAULT_VAL;
+
+	return vbg;
+}
+
+static u16 iwl_mvm_dts_get_ptat_deviation_offset(struct iwl_mvm *mvm)
+{
+	const u8 *calib;
+	u8 ptat, pa1, pa2, median;
+
+	/* TODO: move parsing to NVM code */
+	calib = mvm->nvm_sections[NVM_SECTION_TYPE_CALIBRATION].data;
+	ptat = calib[OTP_DTS_DIODE_DEVIATION];
+	pa1 = calib[OTP_DTS_DIODE_DEVIATION + 1];
+	pa2 = calib[OTP_DTS_DIODE_DEVIATION + 2];
+
+	/* get the median: */
+	if (ptat > pa1) {
+		if (ptat > pa2)
+			median = (pa1 > pa2) ? pa1 : pa2;
+		else
+			median = ptat;
+	} else {
+		if (pa1 > pa2)
+			median = (ptat > pa2) ? ptat : pa2;
+		else
+			median = pa1;
+	}
+
+	return ptat - median;
+}
+
+static u8 iwl_mvm_dts_calibrate_ptat_deviation(struct iwl_mvm *mvm, u8 value)
+{
+	/* Calibrate the PTAT digital value, based on PTAT deviation data: */
+	s16 new_val = value - iwl_mvm_dts_get_ptat_deviation_offset(mvm);
+
+	if (new_val > PTAT_DIGITAL_VALUE_MAX_VALUE)
+		new_val = PTAT_DIGITAL_VALUE_MAX_VALUE;
+	else if (new_val < PTAT_DIGITAL_VALUE_MIN_VALUE)
+		new_val = PTAT_DIGITAL_VALUE_MIN_VALUE;
+
+	return new_val;
+}
+
+static bool dts_get_adjacent_vrefs(struct iwl_mvm *mvm,
+				   union dts_diode_results *avg_ptat)
+{
+	u8 vrefs_results[DTS_VREFS_NUM];
+	u8 low_vref_index = 0, flags;
+	u32 reg;
+
+	reg = iwl_read_prph(mvm->trans, DTSC_VREF_AVG);
+	memcpy(vrefs_results, &reg, sizeof(reg));
+	reg = iwl_read_prph(mvm->trans, DTSC_VREF5_AVG);
+	vrefs_results[4] = reg & 0xff;
+
+	if (avg_ptat->bits.digital_value < vrefs_results[0] ||
+	    avg_ptat->bits.digital_value > vrefs_results[4])
+		return false;
+
+	if (avg_ptat->bits.digital_value > vrefs_results[3])
+		low_vref_index = 3;
+	else if (avg_ptat->bits.digital_value > vrefs_results[2])
+		low_vref_index = 2;
+	else if (avg_ptat->bits.digital_value > vrefs_results[1])
+		low_vref_index = 1;
+
+	avg_ptat->bits.vref_low  = vrefs_results[low_vref_index];
+	avg_ptat->bits.vref_high = vrefs_results[low_vref_index + 1];
+	flags = avg_ptat->bits.flags;
+	avg_ptat->bits.flags =
+		(flags & ~DTS_DIODE_REG_FLAGS_VREFS_ID) |
+		(low_vref_index & DTS_DIODE_REG_FLAGS_VREFS_ID);
+	return true;
+}
+
+/*
+ * return true it the results are valid, and false otherwise.
+ */
+static bool dts_read_ptat_avg_results(struct iwl_mvm *mvm,
+				      union dts_diode_results *avg_ptat)
+{
+	u32 reg;
+	u8 tmp;
+
+	/* fill the diode value and pass_once with avg-reg results */
+	reg = iwl_read_prph(mvm->trans, DTSC_PTAT_AVG);
+	reg &= DTS_DIODE_REG_DIG_VAL | DTS_DIODE_REG_PASS_ONCE;
+	avg_ptat->reg_value = reg;
+
+	/* calibrate the PTAT digital value */
+	tmp = avg_ptat->bits.digital_value;
+	tmp = iwl_mvm_dts_calibrate_ptat_deviation(mvm, tmp);
+	avg_ptat->bits.digital_value = tmp;
+
+	/*
+	 * fill vrefs fields, based on the avgVrefs results
+	 * and the diode value
+	 */
+	return dts_get_adjacent_vrefs(mvm, avg_ptat) &&
+		DTS_DIODE_VALID(avg_ptat->bits.flags);
+}
+
+static s32 calculate_nic_temperature(union dts_diode_results avg_ptat,
+				     u16 volt_band_gap)
+{
+	u32 tmp_result;
+	u8 vrefs_diff;
+	/*
+	 * For temperature calculation (at the end, shift right by 23)
+	 * LUT[(D2-D1)] = ROUND{ 2^23 / ((D2-D1)*9*10) }
+	 * (D2-D1) ==   43    44    45    46    47    48    49    50    51
+	 */
+	static const u16 calc_lut[CALC_LUT_SIZE] = {
+		2168, 2118, 2071, 2026, 1983, 1942, 1902, 1864, 1828,
+	};
+
+	/*
+	 * The diff between the high and low voltage-references is assumed
+	 * to be strictly be in range of [60,68]
+	 */
+	vrefs_diff = avg_ptat.bits.vref_high - avg_ptat.bits.vref_low;
+
+	if (vrefs_diff < CALC_VREFS_MIN_DIFF ||
+	    vrefs_diff > CALC_VREFS_MAX_DIFF)
+		return TEMPERATURE_ERROR;
+
+	/* calculate the result: */
+	tmp_result =
+		vrefs_diff * (DTS_DIODE_GET_VREFS_ID(avg_ptat.bits.flags) + 9);
+	tmp_result += avg_ptat.bits.digital_value;
+	tmp_result -= avg_ptat.bits.vref_high;
+
+	/* multiply by the LUT value (based on the diff) */
+	tmp_result *= calc_lut[vrefs_diff - CALC_LUT_INDEX_OFFSET];
+
+	/*
+	 * Get the BandGap (the voltage refereces source) error data
+	 * (temperature offset)
+	 */
+	tmp_result *= volt_band_gap;
+
+	/*
+	 * here, tmp_result value can be up to 32-bits. We want to right-shift
+	 * it *without* sign-extend.
+	 */
+	tmp_result = tmp_result >> CALC_TEMPERATURE_RESULT_SHIFT_OFFSET;
+
+	/*
+	 * at this point, tmp_result should be in the range:
+	 * 200 <= tmp_result <= 365
+	 */
+	return (s16)tmp_result - 240;
+}
+
+static s32 check_nic_temperature(struct iwl_mvm *mvm)
+{
+	u16 volt_band_gap;
+	union dts_diode_results avg_ptat;
+
+	volt_band_gap = iwl_mvm_dts_get_volt_band_gap(mvm);
+
+	/* disable DTS */
+	iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 0);
+
+	/* SV initialization */
+	iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 1);
+	iwl_write_prph(mvm->trans, DTSC_CFG_MODE,
+		       DTSC_CFG_MODE_PERIODIC);
+
+	/* wait for results */
+	msleep(100);
+	if (!dts_read_ptat_avg_results(mvm, &avg_ptat))
+		return TEMPERATURE_ERROR;
+
+	/* disable DTS */
+	iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 0);
+
+	return calculate_nic_temperature(avg_ptat, volt_band_gap);
+}
+
+static void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm)
+{
+	u32 duration = mvm->thermal_throttle.params->ct_kill_duration;
+
+	IWL_ERR(mvm, "Enter CT Kill\n");
+	iwl_mvm_set_hw_ctkill_state(mvm, true);
+	schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit,
+			      round_jiffies_relative(duration * HZ));
+}
+
+static void iwl_mvm_exit_ctkill(struct iwl_mvm *mvm)
+{
+	IWL_ERR(mvm, "Exit CT Kill\n");
+	iwl_mvm_set_hw_ctkill_state(mvm, false);
+}
+
+static void check_exit_ctkill(struct work_struct *work)
+{
+	struct iwl_mvm_tt_mgmt *tt;
+	struct iwl_mvm *mvm;
+	u32 duration;
+	s32 temp;
+
+	tt = container_of(work, struct iwl_mvm_tt_mgmt, ct_kill_exit.work);
+	mvm = container_of(tt, struct iwl_mvm, thermal_throttle);
+
+	duration = tt->params->ct_kill_duration;
+
+	iwl_trans_start_hw(mvm->trans);
+	temp = check_nic_temperature(mvm);
+	iwl_trans_stop_hw(mvm->trans, false);
+
+	if (temp < MIN_TEMPERATURE || temp > MAX_TEMPERATURE) {
+		IWL_DEBUG_TEMP(mvm, "Failed to measure NIC temperature\n");
+		goto reschedule;
+	}
+	IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", temp);
+
+	if (temp <= tt->params->ct_kill_exit) {
+		iwl_mvm_exit_ctkill(mvm);
+		return;
+	}
+
+reschedule:
+	schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit,
+			      round_jiffies(duration * HZ));
+}
+
+static void iwl_mvm_tt_smps_iterator(void *_data, u8 *mac,
+				     struct ieee80211_vif *vif)
+{
+	struct iwl_mvm *mvm = _data;
+	enum ieee80211_smps_mode smps_mode;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	if (mvm->thermal_throttle.dynamic_smps)
+		smps_mode = IEEE80211_SMPS_DYNAMIC;
+	else
+		smps_mode = IEEE80211_SMPS_AUTOMATIC;
+
+	iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, smps_mode);
+}
+
+static void iwl_mvm_tt_tx_protection(struct iwl_mvm *mvm, bool enable)
+{
+	struct ieee80211_sta *sta;
+	struct iwl_mvm_sta *mvmsta;
+	int i, err;
+
+	for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
+		sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
+						lockdep_is_held(&mvm->mutex));
+		if (IS_ERR_OR_NULL(sta))
+			continue;
+		mvmsta = (void *)sta->drv_priv;
+		if (enable == mvmsta->tt_tx_protection)
+			continue;
+		err = iwl_mvm_tx_protection(mvm, &mvmsta->lq_sta.lq,
+					    mvmsta, enable);
+		if (err) {
+			IWL_ERR(mvm, "Failed to %s Tx protection\n",
+				enable ? "enable" : "disable");
+		} else {
+			IWL_DEBUG_TEMP(mvm, "%s Tx protection\n",
+				       enable ? "Enable" : "Disable");
+			mvmsta->tt_tx_protection = enable;
+		}
+	}
+}
+
+static void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff)
+{
+	struct iwl_host_cmd cmd = {
+		.id = REPLY_THERMAL_MNG_BACKOFF,
+		.len = { sizeof(u32), },
+		.data = { &backoff, },
+		.flags = CMD_SYNC,
+	};
+
+	if (iwl_mvm_send_cmd(mvm, &cmd) == 0) {
+		IWL_DEBUG_TEMP(mvm, "Set Thermal Tx backoff to: %u\n",
+			       backoff);
+		mvm->thermal_throttle.tx_backoff = backoff;
+	} else {
+		IWL_ERR(mvm, "Failed to change Thermal Tx backoff\n");
+	}
+}
+
+void iwl_mvm_tt_handler(struct iwl_mvm *mvm)
+{
+	const struct iwl_tt_params *params = mvm->thermal_throttle.params;
+	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;
+	s32 temperature = mvm->temperature;
+	int i;
+	u32 tx_backoff;
+
+	IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", mvm->temperature);
+
+	if (params->support_ct_kill && temperature >= params->ct_kill_entry) {
+		iwl_mvm_enter_ctkill(mvm);
+		return;
+	}
+
+	if (params->support_dynamic_smps) {
+		if (!tt->dynamic_smps &&
+		    temperature >= params->dynamic_smps_entry) {
+			IWL_DEBUG_TEMP(mvm, "Enable dynamic SMPS\n");
+			tt->dynamic_smps = true;
+			ieee80211_iterate_active_interfaces_atomic(
+					mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+					iwl_mvm_tt_smps_iterator, mvm);
+		} else if (tt->dynamic_smps &&
+			   temperature <= params->dynamic_smps_exit) {
+			IWL_DEBUG_TEMP(mvm, "Disable dynamic SMPS\n");
+			tt->dynamic_smps = false;
+			ieee80211_iterate_active_interfaces_atomic(
+					mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+					iwl_mvm_tt_smps_iterator, mvm);
+		}
+	}
+
+	if (params->support_tx_protection) {
+		if (temperature >= params->tx_protection_entry)
+			iwl_mvm_tt_tx_protection(mvm, true);
+		else if (temperature <= params->tx_protection_exit)
+			iwl_mvm_tt_tx_protection(mvm, false);
+	}
+
+	if (params->support_tx_backoff) {
+		tx_backoff = 0;
+		for (i = 0; i < TT_TX_BACKOFF_SIZE; i++) {
+			if (temperature < params->tx_backoff[i].temperature)
+				break;
+			tx_backoff = params->tx_backoff[i].backoff;
+		}
+		if (tt->tx_backoff != tx_backoff)
+			iwl_mvm_tt_tx_backoff(mvm, tx_backoff);
+	}
+}
+
+static const struct iwl_tt_params iwl7000_tt_params = {
+	.ct_kill_entry = 118,
+	.ct_kill_exit = 96,
+	.ct_kill_duration = 5,
+	.dynamic_smps_entry = 114,
+	.dynamic_smps_exit = 110,
+	.tx_protection_entry = 114,
+	.tx_protection_exit = 108,
+	.tx_backoff = {
+		{.temperature = 112, .backoff = 200},
+		{.temperature = 113, .backoff = 600},
+		{.temperature = 114, .backoff = 1200},
+		{.temperature = 115, .backoff = 2000},
+		{.temperature = 116, .backoff = 4000},
+		{.temperature = 117, .backoff = 10000},
+	},
+	.support_ct_kill = true,
+	.support_dynamic_smps = true,
+	.support_tx_protection = true,
+	.support_tx_backoff = true,
+};
+
+void iwl_mvm_tt_initialize(struct iwl_mvm *mvm)
+{
+	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;
+
+	IWL_DEBUG_TEMP(mvm, "Initialize Thermal Throttling\n");
+	tt->params = &iwl7000_tt_params;
+	INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill);
+}
+
+void iwl_mvm_tt_exit(struct iwl_mvm *mvm)
+{
+	cancel_delayed_work_sync(&mvm->thermal_throttle.ct_kill_exit);
+	IWL_DEBUG_TEMP(mvm, "Exit Thermal Throttling\n");
+}
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 687b34e..c9b44ab 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -471,3 +471,34 @@ int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
 
 	return iwl_mvm_send_cmd(mvm, &cmd);
 }
+
+/**
+ * iwl_mvm_update_smps - Get a requst to change the SMPS mode
+ * @req_type: The part of the driver who call for a change.
+ * @smps_requests: The request to change the SMPS mode.
+ *
+ * Get a requst to change the SMPS mode,
+ * and change it according to all other requests in the driver.
+ */
+void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
+			 enum iwl_mvm_smps_type_request req_type,
+			 enum ieee80211_smps_mode smps_request)
+{
+	struct iwl_mvm_vif *mvmvif;
+	enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
+	int i;
+
+	lockdep_assert_held(&mvm->mutex);
+	mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	mvmvif->smps_requests[req_type] = smps_request;
+	for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
+		if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) {
+			smps_mode = IEEE80211_SMPS_STATIC;
+			break;
+		}
+		if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
+			smps_mode = IEEE80211_SMPS_DYNAMIC;
+	}
+
+	ieee80211_request_smps(vif, smps_mode);
+}
-- 
cgit v0.10.2


From 1bd2d1755054c0cc13e2dc7766f2f2ead7d15444 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Tue, 21 May 2013 14:49:09 +0300
Subject: iwlwifi: mvm: Change number of DTIMs to skip semantics

If skip over DTIMs is enabled the driver can specify number of DTIMs
to skip. This parameter in host-device API implies number of DTIM
periods to skip. For example, to skip one DTIM means sleep over two
DTIM periods. Change semantics accordingly. Change this parameter's
default value.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
index b6bdfd3..d8e1929 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
@@ -101,7 +101,9 @@ enum iwl_power_flags {
  * @tx_data_timeout:    Minimum time (usec) from last Tx packet for AM to
  *			PSM transition - legacy PM
  * @sleep_interval:	not in use
- * @num_skip_dtim:	Number of DTIMs to skip if Skip over DTIM flag is set
+ * @skip_dtim_periods:	Number of DTIM periods to skip if Skip over DTIM flag
+ *			is set. For example, if it is required to skip over
+ *			one DTIM, this value need to be set to 2 (DTIM periods).
  * @lprx_rssi_threshold: Signal strength up to which LP RX can be enabled.
  *			Default: 80dbm
  */
@@ -113,7 +115,7 @@ struct iwl_powertable_cmd {
 	__le32 rx_data_timeout;
 	__le32 tx_data_timeout;
 	__le32 sleep_interval[IWL_POWER_VEC_SIZE];
-	__le32 num_skip_dtim;
+	__le32 skip_dtim_periods;
 	__le32 lprx_rssi_threshold;
 } __packed;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index c818d6d..516e64e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -139,8 +139,8 @@ static void iwl_mvm_power_log(struct iwl_mvm *mvm,
 		IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
 				cmd->lprx_rssi_threshold);
 		if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
-			IWL_DEBUG_POWER(mvm, "DTIMs to skip = %u\n",
-					le32_to_cpu(cmd->num_skip_dtim));
+			IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
+					le32_to_cpu(cmd->skip_dtim_periods));
 	}
 }
 
@@ -188,7 +188,7 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	    (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||
 	     mvm->cur_ucode == IWL_UCODE_WOWLAN)) {
 		cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
-		cmd->num_skip_dtim = cpu_to_le32(2);
+		cmd->skip_dtim_periods = cpu_to_le32(3);
 	}
 
 	/* Check that keep alive period is at least 3 * DTIM */
-- 
cgit v0.10.2


From 9ce4fa7291ff797f04849075a2ee3cf60f752aee Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 22 May 2013 13:16:23 +0300
Subject: iwlwifi: take valid ant for HT caps from TLV

I forgot to take them from TLV and took them from the NVM
instead.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c
index 600c9fd..4c887f3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c
@@ -732,17 +732,16 @@ int iwl_init_sband_channels(struct iwl_nvm_data *data,
 void iwl_init_ht_hw_capab(const struct iwl_cfg *cfg,
 			  struct iwl_nvm_data *data,
 			  struct ieee80211_sta_ht_cap *ht_info,
-			  enum ieee80211_band band)
+			  enum ieee80211_band band,
+			  u8 tx_chains, u8 rx_chains)
 {
 	int max_bit_rate = 0;
-	u8 rx_chains;
-	u8 tx_chains;
 
-	tx_chains = hweight8(data->valid_tx_ant);
+	tx_chains = hweight8(tx_chains);
 	if (cfg->rx_with_siso_diversity)
 		rx_chains = 1;
 	else
-		rx_chains = hweight8(data->valid_rx_ant);
+		rx_chains = hweight8(rx_chains);
 
 	if (!(data->sku_cap_11n_enable) || !cfg->ht_params) {
 		ht_info->ht_supported = false;
@@ -806,7 +805,8 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
 	sband->n_bitrates = N_RATES_24;
 	n_used += iwl_init_sband_channels(data, sband, n_channels,
 					  IEEE80211_BAND_2GHZ);
-	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ);
+	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ,
+			     data->valid_tx_ant, data->valid_rx_ant);
 
 	sband = &data->bands[IEEE80211_BAND_5GHZ];
 	sband->band = IEEE80211_BAND_5GHZ;
@@ -814,7 +814,8 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
 	sband->n_bitrates = N_RATES_52;
 	n_used += iwl_init_sband_channels(data, sband, n_channels,
 					  IEEE80211_BAND_5GHZ);
-	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ);
+	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ,
+			     data->valid_tx_ant, data->valid_rx_ant);
 
 	if (n_channels != n_used)
 		IWL_ERR_DEV(dev, "EEPROM: used only %d of %d channels\n",
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h
index 37f1153..d73304a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h
@@ -133,6 +133,7 @@ int iwl_init_sband_channels(struct iwl_nvm_data *data,
 void iwl_init_ht_hw_capab(const struct iwl_cfg *cfg,
 			  struct iwl_nvm_data *data,
 			  struct ieee80211_sta_ht_cap *ht_info,
-			  enum ieee80211_band band);
+			  enum ieee80211_band band,
+			  u8 tx_chains, u8 rx_chains);
 
 #endif /* __iwl_eeprom_parse_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
index 8f2a4e9..acd2665 100644
--- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
@@ -292,7 +292,7 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
 
 static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
 			    struct iwl_nvm_data *data, const __le16 *nvm_sw,
-			    bool enable_vht)
+			    bool enable_vht, u8 tx_chains, u8 rx_chains)
 {
 	int n_channels = iwl_init_channel_map(dev, cfg, data,
 			&nvm_sw[NVM_CHANNELS]);
@@ -305,7 +305,8 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
 	sband->n_bitrates = N_RATES_24;
 	n_used += iwl_init_sband_channels(data, sband, n_channels,
 					  IEEE80211_BAND_2GHZ);
-	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ);
+	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ,
+			     tx_chains, rx_chains);
 
 	sband = &data->bands[IEEE80211_BAND_5GHZ];
 	sband->band = IEEE80211_BAND_5GHZ;
@@ -313,7 +314,8 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
 	sband->n_bitrates = N_RATES_52;
 	n_used += iwl_init_sband_channels(data, sband, n_channels,
 					  IEEE80211_BAND_5GHZ);
-	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ);
+	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ,
+			     tx_chains, rx_chains);
 	if (enable_vht)
 		iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap);
 
@@ -325,7 +327,7 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
 struct iwl_nvm_data *
 iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
 		   const __le16 *nvm_hw, const __le16 *nvm_sw,
-		   const __le16 *nvm_calib)
+		   const __le16 *nvm_calib, u8 tx_chains, u8 rx_chains)
 {
 	struct iwl_nvm_data *data;
 	u8 hw_addr[ETH_ALEN];
@@ -381,8 +383,8 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
 	data->hw_addr[4] = hw_addr[5];
 	data->hw_addr[5] = hw_addr[4];
 
-	iwl_init_sbands(dev, cfg, data, nvm_sw,
-			sku & NVM_SKU_CAP_11AC_ENABLE);
+	iwl_init_sbands(dev, cfg, data, nvm_sw, sku & NVM_SKU_CAP_11AC_ENABLE,
+			tx_chains, rx_chains);
 
 	data->calib_version = 255;   /* TODO:
 					this value will prevent some checks from
diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h
index e57fb98..3325059 100644
--- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h
+++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h
@@ -75,6 +75,6 @@
 struct iwl_nvm_data *
 iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
 		   const __le16 *nvm_hw, const __le16 *nvm_sw,
-		   const __le16 *nvm_calib);
+		   const __le16 *nvm_calib, u8 tx_chains, u8 rx_chains);
 
 #endif /* __iwl_nvm_parse_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index 2cd669c..edb94ea 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -251,7 +251,9 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm)
 	hw = (const __le16 *)sections[NVM_SECTION_TYPE_HW].data;
 	sw = (const __le16 *)sections[NVM_SECTION_TYPE_SW].data;
 	calib = (const __le16 *)sections[NVM_SECTION_TYPE_CALIBRATION].data;
-	return iwl_parse_nvm_data(mvm->trans->dev, mvm->cfg, hw, sw, calib);
+	return iwl_parse_nvm_data(mvm->trans->dev, mvm->cfg, hw, sw, calib,
+				  iwl_fw_valid_tx_ant(mvm->fw),
+				  iwl_fw_valid_rx_ant(mvm->fw));
 }
 
 #define MAX_NVM_FILE_LEN	16384
-- 
cgit v0.10.2


From d64048edcd714095a5cf2d7019769d0d94e19892 Mon Sep 17 00:00:00 2001
From: Hila Gonen <hila.gonen@intel.com>
Date: Wed, 13 Mar 2013 18:00:03 +0200
Subject: iwlwifi: mvm: Add support for connection monitor offload

The firmware supports periodic keep alive and beacon monitoring,
so advertise connection monitor offload capability by setting
IEEE80211_HW_CONNECTION_MONITOR flag. Implement missed beacons
notification handler. Call ieee80211_beacon_loss in case of
missed beacons, so AP probing by mac80211 can be triggered.

Signed-off-by: Hila Gonen <hila.gonen@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index db6f474..cbfb3be 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -164,6 +164,8 @@ enum {
 	CARD_STATE_CMD = 0xa0,
 	CARD_STATE_NOTIFICATION = 0xa1,
 
+	MISSED_BEACONS_NOTIFICATION = 0xa2,
+
 	REPLY_RX_PHY_CMD = 0xc0,
 	REPLY_RX_MPDU_CMD = 0xc1,
 	BA_NOTIF = 0xc5,
@@ -943,6 +945,24 @@ struct iwl_card_state_notif {
 } __packed; /* CARD_STATE_NTFY_API_S_VER_1 */
 
 /**
+ * struct iwl_missed_beacons_notif - information on missed beacons
+ * ( MISSED_BEACONS_NOTIFICATION = 0xa2 )
+ * @mac_id: interface ID
+ * @consec_missed_beacons_since_last_rx: number of consecutive missed
+ *	beacons since last RX.
+ * @consec_missed_beacons: number of consecutive missed beacons
+ * @num_expected_beacons:
+ * @num_recvd_beacons:
+ */
+struct iwl_missed_beacons_notif {
+	__le32 mac_id;
+	__le32 consec_missed_beacons_since_last_rx;
+	__le32 consec_missed_beacons;
+	__le32 num_expected_beacons;
+	__le32 num_recvd_beacons;
+} __packed; /* MISSED_BEACON_NTFY_API_S_VER_3 */
+
+/**
  * struct iwl_set_calib_default_cmd - set default value for calibration.
  * ( SET_CALIB_DEFAULT_CMD = 0x8e )
  * @calib_index: the calibration to set value for
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index dc5f4ef..b4e8e59 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -1050,3 +1050,28 @@ int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
 		     rate);
 	return 0;
 }
+
+static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac,
+					 struct ieee80211_vif *vif)
+{
+	u16 *id = _data;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
+	if (mvmvif->id == *id)
+		ieee80211_beacon_loss(vif);
+}
+
+int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,
+				    struct iwl_rx_cmd_buffer *rxb,
+				    struct iwl_device_cmd *cmd)
+{
+	struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	struct iwl_missed_beacons_notif *missed_beacons = (void *)pkt->data;
+	u16 id = (u16)le32_to_cpu(missed_beacons->mac_id);
+
+	ieee80211_iterate_active_interfaces_atomic(mvm->hw,
+						   IEEE80211_IFACE_ITER_NORMAL,
+						   iwl_mvm_beacon_loss_iterator,
+						   &id);
+	return 0;
+}
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index c26f6b5..dc50020 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -152,7 +152,8 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 		    IEEE80211_HW_SUPPORTS_PS |
 		    IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
 		    IEEE80211_HW_AMPDU_AGGREGATION |
-		    IEEE80211_HW_TIMING_BEACON_ONLY;
+		    IEEE80211_HW_TIMING_BEACON_ONLY |
+		    IEEE80211_HW_CONNECTION_MONITOR;
 
 	hw->queues = IWL_MVM_FIRST_AGG_QUEUE;
 	hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index a288552..0e74503 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -552,6 +552,9 @@ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
 int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
 			    struct iwl_rx_cmd_buffer *rxb,
 			    struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,
+				    struct iwl_rx_cmd_buffer *rxb,
+				    struct iwl_device_cmd *cmd);
 
 /* Bindings */
 int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 8431637..d7a199b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -227,6 +227,9 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 	RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
 	RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
 
+	RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
+		   false),
+
 	RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
 };
 #undef RX_HANDLER
@@ -289,6 +292,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(NET_DETECT_HOTSPOTS_CMD),
 	CMD(NET_DETECT_HOTSPOTS_QUERY_CMD),
 	CMD(CARD_STATE_NOTIFICATION),
+	CMD(MISSED_BEACONS_NOTIFICATION),
 	CMD(BT_COEX_PRIO_TABLE),
 	CMD(BT_COEX_PROT_ENV),
 	CMD(BT_PROFILE_NOTIFICATION),
-- 
cgit v0.10.2


From b571a69745dc90aec3d0505a7ceac2702a93861b Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Tue, 21 May 2013 14:49:09 +0300
Subject: iwlwifi: mvm: add debugfs for powersave

Add debugfs files to control powersave parameters for testing.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 95871b2..69e0806 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -300,6 +300,146 @@ static ssize_t iwl_dbgfs_power_down_d3_allow_write(struct file *file,
 	return count;
 }
 
+static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
+				 struct ieee80211_vif *vif,
+				 enum iwl_dbgfs_pm_mask param, int val)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm;
+
+	dbgfs_pm->mask |= param;
+
+	switch (param) {
+	case MVM_DEBUGFS_PM_KEEP_ALIVE: {
+		struct ieee80211_hw *hw = mvm->hw;
+		int dtimper = hw->conf.ps_dtim_period ?: 1;
+		int dtimper_msec = dtimper * vif->bss_conf.beacon_int;
+
+		IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
+		if (val * MSEC_PER_SEC < 3 * dtimper_msec) {
+			IWL_WARN(mvm,
+				 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
+				 val * MSEC_PER_SEC, 3 * dtimper_msec);
+		}
+		dbgfs_pm->keep_alive_seconds = val;
+		break;
+	}
+	case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
+		IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n",
+				val ? "enabled" : "disabled");
+		dbgfs_pm->skip_over_dtim = val;
+		break;
+	case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
+		IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
+		dbgfs_pm->skip_dtim_periods = val;
+		break;
+	case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
+		IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
+		dbgfs_pm->rx_data_timeout = val;
+		break;
+	case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
+		IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
+		dbgfs_pm->tx_data_timeout = val;
+		break;
+	case MVM_DEBUGFS_PM_DISABLE_POWER_OFF:
+		IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val);
+		dbgfs_pm->disable_power_off = val;
+		break;
+	}
+}
+
+static ssize_t iwl_dbgfs_pm_params_write(struct file *file,
+					 const char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct ieee80211_vif *vif = file->private_data;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_mvm *mvm = mvmvif->dbgfs_data;
+	enum iwl_dbgfs_pm_mask param;
+	char buf[32] = {};
+	int val;
+	int ret;
+
+	if (copy_from_user(buf, user_buf, sizeof(buf)))
+		return -EFAULT;
+
+	if (!strncmp("keep_alive=", buf, 11)) {
+		if (sscanf(buf + 11, "%d", &val) != 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_PM_KEEP_ALIVE;
+	} else if (!strncmp("skip_over_dtim=", buf, 15)) {
+		if (sscanf(buf + 15, "%d", &val) != 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
+	} else if (!strncmp("skip_dtim_periods=", buf, 18)) {
+		if (sscanf(buf + 18, "%d", &val) != 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
+	} else if (!strncmp("rx_data_timeout=", buf, 16)) {
+		if (sscanf(buf + 16, "%d", &val) != 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
+	} else if (!strncmp("tx_data_timeout=", buf, 16)) {
+		if (sscanf(buf + 16, "%d", &val) != 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
+	} else if (!strncmp("disable_power_off=", buf, 18)) {
+		if (sscanf(buf + 18, "%d", &val) != 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF;
+	} else {
+		return -EINVAL;
+	}
+
+	mutex_lock(&mvm->mutex);
+	iwl_dbgfs_update_pm(mvm, vif, param, val);
+	ret = iwl_mvm_power_update_mode(mvm, vif);
+	mutex_unlock(&mvm->mutex);
+
+	return ret ?: count;
+}
+
+static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct ieee80211_vif *vif = file->private_data;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_mvm *mvm = mvmvif->dbgfs_data;
+	struct iwl_powertable_cmd cmd = {};
+	char buf[256];
+	int bufsz = sizeof(buf);
+	int pos = 0;
+
+	iwl_mvm_power_build_cmd(mvm, vif, &cmd);
+
+	pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off = %d\n",
+			 (cmd.flags &
+			 cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK)) ?
+			 0 : 1);
+	pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
+			 le32_to_cpu(cmd.skip_dtim_periods));
+	pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
+			 iwlmvm_mod_params.power_scheme);
+	pos += scnprintf(buf+pos, bufsz-pos, "flags = %d\n",
+			 le16_to_cpu(cmd.flags));
+	pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
+			 cmd.keep_alive_seconds);
+
+	if (cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)) {
+		pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
+				 (cmd.flags &
+				 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ?
+				 1 : 0);
+		pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n",
+				 le32_to_cpu(cmd.rx_data_timeout));
+		pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
+				 le32_to_cpu(cmd.tx_data_timeout));
+	}
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
 static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
 					 char __user *user_buf,
 					 size_t count, loff_t *ppos)
@@ -481,6 +621,191 @@ static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
 	return count;
 }
 
+static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
+				enum iwl_dbgfs_bf_mask param, int value)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
+
+	dbgfs_bf->mask |= param;
+
+	switch (param) {
+	case MVM_DEBUGFS_BF_ENERGY_DELTA:
+		dbgfs_bf->bf_energy_delta = value;
+		break;
+	case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
+		dbgfs_bf->bf_roaming_energy_delta = value;
+		break;
+	case MVM_DEBUGFS_BF_ROAMING_STATE:
+		dbgfs_bf->bf_roaming_state = value;
+		break;
+	case MVM_DEBUGFS_BF_TEMPERATURE_DELTA:
+		dbgfs_bf->bf_temperature_delta = value;
+		break;
+	case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
+		dbgfs_bf->bf_enable_beacon_filter = value;
+		break;
+	case MVM_DEBUGFS_BF_DEBUG_FLAG:
+		dbgfs_bf->bf_debug_flag = value;
+		break;
+	case MVM_DEBUGFS_BF_ESCAPE_TIMER:
+		dbgfs_bf->bf_escape_timer = value;
+		break;
+	case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
+		dbgfs_bf->ba_enable_beacon_abort = value;
+		break;
+	case MVM_DEBUGFS_BA_ESCAPE_TIMER:
+		dbgfs_bf->ba_escape_timer = value;
+		break;
+	}
+}
+
+static ssize_t iwl_dbgfs_bf_params_write(struct file *file,
+					 const char __user *user_buf,
+					 size_t count, loff_t *ppos)
+{
+	struct ieee80211_vif *vif = file->private_data;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_mvm *mvm = mvmvif->dbgfs_data;
+	enum iwl_dbgfs_bf_mask param;
+	char buf[256];
+	int buf_size;
+	int value;
+	int ret = 0;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+
+	if (!strncmp("bf_energy_delta=", buf, 16)) {
+		if (sscanf(buf+16, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < IWL_BF_ENERGY_DELTA_MIN ||
+		    value > IWL_BF_ENERGY_DELTA_MAX)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BF_ENERGY_DELTA;
+	} else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
+		if (sscanf(buf+24, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN ||
+		    value > IWL_BF_ROAMING_ENERGY_DELTA_MAX)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
+	} else if (!strncmp("bf_roaming_state=", buf, 17)) {
+		if (sscanf(buf+17, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < IWL_BF_ROAMING_STATE_MIN ||
+		    value > IWL_BF_ROAMING_STATE_MAX)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BF_ROAMING_STATE;
+	} else if (!strncmp("bf_temperature_delta=", buf, 21)) {
+		if (sscanf(buf+21, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < IWL_BF_TEMPERATURE_DELTA_MIN ||
+		    value > IWL_BF_TEMPERATURE_DELTA_MAX)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BF_TEMPERATURE_DELTA;
+	} else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
+		if (sscanf(buf+24, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < 0 || value > 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
+	} else if (!strncmp("bf_debug_flag=", buf, 14)) {
+		if (sscanf(buf+14, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < 0 || value > 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BF_DEBUG_FLAG;
+	} else if (!strncmp("bf_escape_timer=", buf, 16)) {
+		if (sscanf(buf+16, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < IWL_BF_ESCAPE_TIMER_MIN ||
+		    value > IWL_BF_ESCAPE_TIMER_MAX)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
+	} else if (!strncmp("ba_escape_timer=", buf, 16)) {
+		if (sscanf(buf+16, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < IWL_BA_ESCAPE_TIMER_MIN ||
+		    value > IWL_BA_ESCAPE_TIMER_MAX)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
+	} else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
+		if (sscanf(buf+23, "%d", &value) != 1)
+			return -EINVAL;
+		if (value < 0 || value > 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
+	} else {
+		return -EINVAL;
+	}
+
+	mutex_lock(&mvm->mutex);
+	iwl_dbgfs_update_bf(vif, param, value);
+	if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) {
+		ret = iwl_mvm_disable_beacon_filter(mvm, vif);
+	} else {
+		if (mvmvif->bf_enabled)
+			ret = iwl_mvm_enable_beacon_filter(mvm, vif);
+		else
+			ret = iwl_mvm_disable_beacon_filter(mvm, vif);
+	}
+	mutex_unlock(&mvm->mutex);
+
+	return ret ?: count;
+}
+
+static ssize_t iwl_dbgfs_bf_params_read(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct ieee80211_vif *vif = file->private_data;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	char buf[256];
+	int pos = 0;
+	const size_t bufsz = sizeof(buf);
+	struct iwl_beacon_filter_cmd cmd = {
+		.bf_energy_delta = IWL_BF_ENERGY_DELTA_DEFAULT,
+		.bf_roaming_energy_delta = IWL_BF_ROAMING_ENERGY_DELTA_DEFAULT,
+		.bf_roaming_state = IWL_BF_ROAMING_STATE_DEFAULT,
+		.bf_temperature_delta = IWL_BF_TEMPERATURE_DELTA_DEFAULT,
+		.bf_enable_beacon_filter = IWL_BF_ENABLE_BEACON_FILTER_DEFAULT,
+		.bf_debug_flag = IWL_BF_DEBUG_FLAG_DEFAULT,
+		.bf_escape_timer = cpu_to_le32(IWL_BF_ESCAPE_TIMER_DEFAULT),
+		.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_DEFAULT),
+		.ba_enable_beacon_abort = IWL_BA_ENABLE_BEACON_ABORT_DEFAULT,
+	};
+
+	iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
+	if (mvmvif->bf_enabled)
+		cmd.bf_enable_beacon_filter = 1;
+	else
+		cmd.bf_enable_beacon_filter = 0;
+
+	pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n",
+			 cmd.bf_energy_delta);
+	pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n",
+			 cmd.bf_roaming_energy_delta);
+	pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n",
+			 cmd.bf_roaming_state);
+	pos += scnprintf(buf+pos, bufsz-pos, "bf_temperature_delta = %d\n",
+			 cmd.bf_temperature_delta);
+	pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n",
+			 cmd.bf_enable_beacon_filter);
+	pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n",
+			 cmd.bf_debug_flag);
+	pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n",
+			 cmd.bf_escape_timer);
+	pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n",
+			 cmd.ba_escape_timer);
+	pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n",
+			 cmd.ba_enable_beacon_abort);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
 #ifdef CONFIG_PM_SLEEP
 static ssize_t iwl_dbgfs_d3_sram_write(struct file *file,
 				       const char __user *user_buf,
@@ -594,6 +919,8 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram);
 
 /* Interface specific debugfs entries */
 MVM_DEBUGFS_READ_FILE_OPS(mac_params);
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params);
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params);
 
 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 {
@@ -647,9 +974,19 @@ void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 		return;
 	}
 
+	if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
+	    vif->type == NL80211_IFTYPE_STATION && !vif->p2p)
+		MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
+					 S_IRUSR);
+
 	MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir,
 				 S_IRUSR);
 
+	if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
+	    mvmvif == mvm->bf_allowed_vif)
+		MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
+					 S_IRUSR | S_IWUSR);
+
 	/*
 	 * Create symlink for convenience pointing to interface specific
 	 * debugfs entries for the driver. For example, under
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 0e74503..6a3220b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -150,6 +150,54 @@ enum iwl_power_scheme {
 
 #define IWL_CONN_MAX_LISTEN_INTERVAL	70
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+enum iwl_dbgfs_pm_mask {
+	MVM_DEBUGFS_PM_KEEP_ALIVE = BIT(0),
+	MVM_DEBUGFS_PM_SKIP_OVER_DTIM = BIT(1),
+	MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS = BIT(2),
+	MVM_DEBUGFS_PM_RX_DATA_TIMEOUT = BIT(3),
+	MVM_DEBUGFS_PM_TX_DATA_TIMEOUT = BIT(4),
+	MVM_DEBUGFS_PM_DISABLE_POWER_OFF = BIT(5),
+};
+
+struct iwl_dbgfs_pm {
+	u8 keep_alive_seconds;
+	u32 rx_data_timeout;
+	u32 tx_data_timeout;
+	bool skip_over_dtim;
+	u8 skip_dtim_periods;
+	bool disable_power_off;
+	int mask;
+};
+
+/* beacon filtering */
+
+enum iwl_dbgfs_bf_mask {
+	MVM_DEBUGFS_BF_ENERGY_DELTA = BIT(0),
+	MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA = BIT(1),
+	MVM_DEBUGFS_BF_ROAMING_STATE = BIT(2),
+	MVM_DEBUGFS_BF_TEMPERATURE_DELTA = BIT(3),
+	MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER = BIT(4),
+	MVM_DEBUGFS_BF_DEBUG_FLAG = BIT(5),
+	MVM_DEBUGFS_BF_ESCAPE_TIMER = BIT(6),
+	MVM_DEBUGFS_BA_ESCAPE_TIMER = BIT(7),
+	MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT = BIT(8),
+};
+
+struct iwl_dbgfs_bf {
+	u8 bf_energy_delta;
+	u8 bf_roaming_energy_delta;
+	u8 bf_roaming_state;
+	u8 bf_temperature_delta;
+	u8 bf_enable_beacon_filter;
+	u8 bf_debug_flag;
+	u32 bf_escape_timer;
+	u32 ba_escape_timer;
+	u8 ba_enable_beacon_abort;
+	int mask;
+};
+#endif
+
 enum iwl_mvm_smps_type_request {
 	IWL_MVM_SMPS_REQ_BT_COEX,
 	IWL_MVM_SMPS_REQ_TT,
@@ -225,6 +273,8 @@ struct iwl_mvm_vif {
 	struct dentry *dbgfs_dir;
 	struct dentry *dbgfs_slink;
 	void *dbgfs_data;
+	struct iwl_dbgfs_pm dbgfs_pm;
+	struct iwl_dbgfs_bf dbgfs_bf;
 #endif
 
 	enum ieee80211_smps_mode smps_requests[NUM_IWL_MVM_SMPS_REQ];
@@ -631,6 +681,21 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 
 /* beacon filtering */
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+void
+iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
+					 struct iwl_beacon_filter_cmd *cmd);
+int iwl_mvm_dbgfs_set_fw_dbg_log(struct iwl_mvm *mvm);
+#else
+static inline void
+iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
+					 struct iwl_beacon_filter_cmd *cmd)
+{}
+static inline int iwl_mvm_dbgfs_set_fw_dbg_log(struct iwl_mvm *mvm)
+{
+	return 0;
+}
+#endif
 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif);
 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 516e64e..67cf24a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -119,6 +119,7 @@ static int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
 	if (!mvmvif->bf_enabled)
 		return 0;
 
+	iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
 	return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
 }
 
@@ -153,6 +154,8 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	int dtimper, dtimper_msec;
 	int keep_alive;
 	bool radar_detect = false;
+	struct iwl_mvm_vif *mvmvif __maybe_unused =
+		iwl_mvm_vif_from_mac80211(vif);
 
 	/*
 	 * Regardless of power management state the driver must set
@@ -166,6 +169,11 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
+	    mvmvif->dbgfs_pm.disable_power_off)
+		cmd->flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
+#endif
 	if (!vif->bss_conf.ps)
 		return;
 
@@ -205,6 +213,28 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		cmd->rx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);
 		cmd->tx_data_timeout = cpu_to_le32(10 * USEC_PER_MSEC);
 	}
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
+		cmd->keep_alive_seconds = mvmvif->dbgfs_pm.keep_alive_seconds;
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
+		if (mvmvif->dbgfs_pm.skip_over_dtim)
+			cmd->flags |=
+				cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
+		else
+			cmd->flags &=
+				cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
+	}
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
+		cmd->rx_data_timeout =
+			cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
+		cmd->tx_data_timeout =
+			cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
+		cmd->skip_dtim_periods =
+			cpu_to_le32(mvmvif->dbgfs_pm.skip_dtim_periods);
+#endif /* CONFIG_IWLWIFI_DEBUGFS */
 }
 
 int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
@@ -233,6 +263,8 @@ int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 {
 	struct iwl_powertable_cmd cmd = {};
+	struct iwl_mvm_vif *mvmvif __maybe_unused =
+		iwl_mvm_vif_from_mac80211(vif);
 
 	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 		return 0;
@@ -240,12 +272,45 @@ int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
 		cmd.flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
+	    mvmvif->dbgfs_pm.disable_power_off)
+		cmd.flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
+#endif
 	iwl_mvm_power_log(mvm, &cmd);
 
 	return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_ASYNC,
 				    sizeof(cmd), &cmd);
 }
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+void
+iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
+					 struct iwl_beacon_filter_cmd *cmd)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
+
+	if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
+		cmd->bf_energy_delta = dbgfs_bf->bf_energy_delta;
+	if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
+		cmd->bf_roaming_energy_delta =
+				 dbgfs_bf->bf_roaming_energy_delta;
+	if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
+		cmd->bf_roaming_state = dbgfs_bf->bf_roaming_state;
+	if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMPERATURE_DELTA)
+		cmd->bf_temperature_delta = dbgfs_bf->bf_temperature_delta;
+	if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
+		cmd->bf_debug_flag = dbgfs_bf->bf_debug_flag;
+	if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
+		cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
+	if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
+		cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
+	if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
+		cmd->ba_enable_beacon_abort = dbgfs_bf->ba_enable_beacon_abort;
+}
+#endif
+
 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif)
 {
@@ -260,6 +325,7 @@ int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 	    vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 		return 0;
 
+	iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
 	ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
 
 	if (!ret)
-- 
cgit v0.10.2


From e057d3c31bdf87616b415c4b2cbf7310f54b9219 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 28 May 2013 13:01:52 +0200
Subject: cfg80211: support an active monitor interface flag

An active monitor interface is one that is used for communication (via
injection). It is expected to ACK incoming unicast packets. This is
useful for running various 802.11 testing utilities that associate to an
AP via injection and manage the state in user space.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index b3b076a..13b247d 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -961,6 +961,7 @@ struct station_info {
  * @MONITOR_FLAG_CONTROL: pass control frames
  * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
  * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
+ * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address
  */
 enum monitor_flags {
 	MONITOR_FLAG_FCSFAIL		= 1<<NL80211_MNTR_FLAG_FCSFAIL,
@@ -968,6 +969,7 @@ enum monitor_flags {
 	MONITOR_FLAG_CONTROL		= 1<<NL80211_MNTR_FLAG_CONTROL,
 	MONITOR_FLAG_OTHER_BSS		= 1<<NL80211_MNTR_FLAG_OTHER_BSS,
 	MONITOR_FLAG_COOK_FRAMES	= 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
+	MONITOR_FLAG_ACTIVE		= 1<<NL80211_MNTR_FLAG_ACTIVE,
 };
 
 /**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 32b060e..5920715 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2428,6 +2428,8 @@ enum nl80211_survey_info {
  * @NL80211_MNTR_FLAG_OTHER_BSS: disable BSSID filtering
  * @NL80211_MNTR_FLAG_COOK_FRAMES: report frames after processing.
  *	overrides all other flags.
+ * @NL80211_MNTR_FLAG_ACTIVE: use the configured MAC address
+ *	and ACK incoming unicast packets.
  *
  * @__NL80211_MNTR_FLAG_AFTER_LAST: internal use
  * @NL80211_MNTR_FLAG_MAX: highest possible monitor flag
@@ -2439,6 +2441,7 @@ enum nl80211_mntr_flags {
 	NL80211_MNTR_FLAG_CONTROL,
 	NL80211_MNTR_FLAG_OTHER_BSS,
 	NL80211_MNTR_FLAG_COOK_FRAMES,
+	NL80211_MNTR_FLAG_ACTIVE,
 
 	/* keep last */
 	__NL80211_MNTR_FLAG_AFTER_LAST,
@@ -3595,6 +3598,7 @@ enum nl80211_feature_flags {
 	NL80211_FEATURE_ADVERTISE_CHAN_LIMITS		= 1 << 14,
 	NL80211_FEATURE_FULL_AP_CLIENT_STATE		= 1 << 15,
 	NL80211_FEATURE_USERSPACE_MPM			= 1 << 16,
+	NL80211_FEATURE_ACTIVE_MONITOR			= 1 << 17,
 };
 
 /**
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index fb6abcb..31d265f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2227,6 +2227,7 @@ static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
 	[NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
 	[NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
 	[NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
+	[NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
 };
 
 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
@@ -2338,6 +2339,10 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 		change = true;
 	}
 
+	if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
+	    !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
+		return -EOPNOTSUPP;
+
 	if (change)
 		err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
 	else
@@ -2395,6 +2400,11 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 	err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
 				  info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
 				  &flags);
+
+	if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
+	    !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
+		return -EOPNOTSUPP;
+
 	wdev = rdev_add_virtual_intf(rdev,
 				nla_data(info->attrs[NL80211_ATTR_IFNAME]),
 				type, err ? NULL : &flags, &params);
-- 
cgit v0.10.2


From 31eba5bc56a9324f056d28569a4f89f39c1c3f70 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 28 May 2013 13:01:53 +0200
Subject: mac80211: support active monitor interfaces

Support them only if the driver advertises support for them via
IEEE80211_HW_SUPPORTS_ACTIVE_MONITOR. Unlike normal monitor interfaces,
they are added to the driver, along with their MAC address.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 232edf7..9034da1 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -73,16 +73,19 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 		struct ieee80211_local *local = sdata->local;
 
 		if (ieee80211_sdata_running(sdata)) {
+			u32 mask = MONITOR_FLAG_COOK_FRAMES |
+				   MONITOR_FLAG_ACTIVE;
+
 			/*
-			 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
-			 * changed while the interface is up.
+			 * Prohibit MONITOR_FLAG_COOK_FRAMES and
+			 * MONITOR_FLAG_ACTIVE to be changed while the
+			 * interface is up.
 			 * Else we would need to add a lot of cruft
 			 * to update everything:
 			 *	cooked_mntrs, monitor and all fif_* counters
 			 *	reconfigure hardware
 			 */
-			if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
-			    (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
+			if ((*flags & mask) != (sdata->u.mntr_flags & mask))
 				return -EBUSY;
 
 			ieee80211_adjust_monitor_flags(sdata, -1);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 169664c..b931c96 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -146,7 +146,8 @@ static inline int drv_add_interface(struct ieee80211_local *local,
 
 	if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 		    (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
-		     !(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF))))
+		     !(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF) &&
+		     !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))))
 		return -EINVAL;
 
 	trace_drv_add_interface(local, sdata);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index ceef644..7cabaf2 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -159,7 +159,8 @@ static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
 	return 0;
 }
 
-static int ieee80211_verify_mac(struct ieee80211_local *local, u8 *addr)
+static int ieee80211_verify_mac(struct ieee80211_local *local, u8 *addr,
+				bool check_dup)
 {
 	struct ieee80211_sub_if_data *sdata;
 	u64 new, mask, tmp;
@@ -179,10 +180,13 @@ static int ieee80211_verify_mac(struct ieee80211_local *local, u8 *addr)
 		((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) |
 		((u64)m[4] << 1*8) | ((u64)m[5] << 0*8);
 
+	if (!check_dup)
+		return ret;
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
+		if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+		    !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
 			continue;
 
 		m = sdata->vif.addr;
@@ -204,12 +208,17 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct sockaddr *sa = addr;
+	bool check_dup = true;
 	int ret;
 
 	if (ieee80211_sdata_running(sdata))
 		return -EBUSY;
 
-	ret = ieee80211_verify_mac(sdata->local, sa->sa_data);
+	if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+	    !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+		check_dup = false;
+
+	ret = ieee80211_verify_mac(sdata->local, sa->sa_data, check_dup);
 	if (ret)
 		return ret;
 
@@ -541,7 +550,11 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 			break;
 		}
 
-		if (local->monitors == 0 && local->open_count == 0) {
+		if (sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE) {
+			res = drv_add_interface(local, sdata);
+			if (res)
+				goto err_stop;
+		} else if (local->monitors == 0 && local->open_count == 0) {
 			res = ieee80211_add_virtual_monitor(local);
 			if (res)
 				goto err_stop;
@@ -919,7 +932,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		mutex_lock(&local->mtx);
 		ieee80211_recalc_idle(local);
 		mutex_unlock(&local->mtx);
-		break;
+
+		if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+			break;
+
+		/* fall through */
 	default:
 		if (going_down)
 			drv_remove_interface(local, sdata);
@@ -1068,7 +1085,7 @@ static const struct net_device_ops ieee80211_monitorif_ops = {
 	.ndo_start_xmit		= ieee80211_monitor_start_xmit,
 	.ndo_set_rx_mode	= ieee80211_set_multicast_list,
 	.ndo_change_mtu 	= ieee80211_change_mtu,
-	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_set_mac_address 	= ieee80211_change_mac,
 	.ndo_select_queue	= ieee80211_monitor_select_queue,
 };
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 2a8d759..89a8377 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -560,6 +560,9 @@ void ieee80211_iterate_active_interfaces(
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_MONITOR:
+			if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+				continue;
+			break;
 		case NL80211_IFTYPE_AP_VLAN:
 			continue;
 		default:
@@ -598,6 +601,9 @@ void ieee80211_iterate_active_interfaces_atomic(
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_MONITOR:
+			if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+				continue;
+			break;
 		case NL80211_IFTYPE_AP_VLAN:
 			continue;
 		default:
-- 
cgit v0.10.2


From bd5e14fb77d9d1dd15f9102759e8c8b31c667488 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 29 May 2013 09:08:05 +0200
Subject: cfg80211: remove cleanup_work kernel-doc

I evidently forgot this when removing the work itself.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 13b247d..6dd1959 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2869,7 +2869,6 @@ struct cfg80211_cached_keys;
  * @mgmt_registrations_lock: lock for the list
  * @mtx: mutex used to lock data in this struct, may be used by drivers
  *	and some API functions require it held
- * @cleanup_work: work struct used for cleanup that can't be done directly
  * @beacon_interval: beacon interval used on this device for transmitting
  *	beacons, 0 when not valid
  * @address: The address for this device, valid only if @netdev is %NULL
-- 
cgit v0.10.2


From cbb963deed7bbf206f5077ab5742bee00ceefa46 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 29 May 2013 10:22:30 +0300
Subject: net/usb/kalmia: use %*phC to dump small buffers

Instead of dereferencing pointer and put values on stack we could use nice
%*phC specifier.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/kalmia.c b/drivers/net/usb/kalmia.c
index 0192073..6866eae 100644
--- a/drivers/net/usb/kalmia.c
+++ b/drivers/net/usb/kalmia.c
@@ -221,12 +221,9 @@ done:
 		memset(skb_put(skb, padlen), 0, padlen);
 	}
 
-	netdev_dbg(
-		dev->net,
-		"Sending package with length %i and padding %i. Header: %02x:%02x:%02x:%02x:%02x:%02x.",
-		content_len, padlen, header_start[0], header_start[1],
-		header_start[2], header_start[3], header_start[4],
-		header_start[5]);
+	netdev_dbg(dev->net,
+		"Sending package with length %i and padding %i. Header: %6phC.",
+		content_len, padlen, header_start);
 
 	return skb;
 }
@@ -263,32 +260,23 @@ kalmia_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 				sizeof(EXPECTED_UNKNOWN_HEADER_1)) || !memcmp(
 				header_start, EXPECTED_UNKNOWN_HEADER_2,
 				sizeof(EXPECTED_UNKNOWN_HEADER_2))) {
-				netdev_dbg(
-					dev->net,
-					"Received expected unknown frame header: %02x:%02x:%02x:%02x:%02x:%02x. Package length: %i\n",
-					header_start[0], header_start[1],
-					header_start[2], header_start[3],
-					header_start[4], header_start[5],
+				netdev_dbg(dev->net,
+					"Received expected unknown frame header: %6phC. Package length: %i\n",
+					header_start,
 					skb->len - KALMIA_HEADER_LENGTH);
 			}
 			else {
-				netdev_err(
-					dev->net,
-					"Received unknown frame header: %02x:%02x:%02x:%02x:%02x:%02x. Package length: %i\n",
-					header_start[0], header_start[1],
-					header_start[2], header_start[3],
-					header_start[4], header_start[5],
+				netdev_err(dev->net,
+					"Received unknown frame header: %6phC. Package length: %i\n",
+					header_start,
 					skb->len - KALMIA_HEADER_LENGTH);
 				return 0;
 			}
 		}
 		else
-			netdev_dbg(
-				dev->net,
-				"Received header: %02x:%02x:%02x:%02x:%02x:%02x. Package length: %i\n",
-				header_start[0], header_start[1], header_start[2],
-				header_start[3], header_start[4], header_start[5],
-				skb->len - KALMIA_HEADER_LENGTH);
+			netdev_dbg(dev->net,
+				"Received header: %6phC. Package length: %i\n",
+				header_start, skb->len - KALMIA_HEADER_LENGTH);
 
 		/* subtract start header and end header */
 		usb_packet_length = skb->len - (2 * KALMIA_HEADER_LENGTH);
@@ -310,12 +298,9 @@ kalmia_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 				sizeof(HEADER_END_OF_USB_PACKET)) == 0);
 			if (!is_last) {
 				header_start = skb->data + ether_packet_length;
-				netdev_dbg(
-					dev->net,
-					"End header: %02x:%02x:%02x:%02x:%02x:%02x. Package length: %i\n",
-					header_start[0], header_start[1],
-					header_start[2], header_start[3],
-					header_start[4], header_start[5],
+				netdev_dbg(dev->net,
+					"End header: %6phC. Package length: %i\n",
+					header_start,
 					skb->len - KALMIA_HEADER_LENGTH);
 			}
 		}
-- 
cgit v0.10.2


From f4d57941bf89997bad3294f94987caebf2771a33 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 28 May 2013 17:24:15 +0200
Subject: mac80211: always send multicast on CAB queue

If the driver advertised support for a CAB queue, then we
should put all multicast frames there, otherwise sending
them can be racy with clients going to sleep while we TX
a frame. To avoid this, always TX multicast frames on the
multicast queue.

It seems like even drivers not using the queue framework
might want to do this which would mean also moving the
IEEE80211_TX_CTL_SEND_AFTER_DTIM flag assignment, but it
also seems that drivers behave differently here so that
just moving it wouldn't be a good idea. It'd be better to
modify those drivers to use the queue framework.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 9972e07..34be933 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -398,13 +398,14 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
 	if (ieee80211_has_order(hdr->frame_control))
 		return TX_CONTINUE;
 
+	if (tx->local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
+		info->hw_queue = tx->sdata->vif.cab_queue;
+
 	/* no stations in PS mode */
 	if (!atomic_read(&ps->num_sta_ps))
 		return TX_CONTINUE;
 
 	info->flags |= IEEE80211_TX_CTL_SEND_AFTER_DTIM;
-	if (tx->local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
-		info->hw_queue = tx->sdata->vif.cab_queue;
 
 	/* device releases frame after DTIM beacon */
 	if (!(tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING))
-- 
cgit v0.10.2


From adc2d1225bed4bbf68473e6b5c4b91d2445609cb Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Tue, 28 May 2013 15:17:52 +0300
Subject: wil6210: channel off by 1

WMI commands wants channel index, that is channel - 1

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 5e01f4e..a091eb1 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -728,7 +728,7 @@ int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
 		.bcon_interval = cpu_to_le16(bi),
 		.network_type = wmi_nettype,
 		.disable_sec_offload = 1,
-		.channel = chan,
+		.channel = chan - 1,
 	};
 	struct {
 		struct wil6210_mbox_hdr_wmi wmi;
-- 
cgit v0.10.2


From b338f74e33e33616e8fe498b5b09da8a84a7b218 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Tue, 28 May 2013 15:17:53 +0300
Subject: wil6210: Don't use wdev->sme_state

sme_state is private wdev's variable.
Track connection state internally

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index c5d4a87..4eb05d0 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -322,12 +322,16 @@ static int wil_cfg80211_connect(struct wiphy *wiphy,
 	 * FW don't support scan after connection attempt
 	 */
 	set_bit(wil_status_dontscan, &wil->status);
+	set_bit(wil_status_fwconnecting, &wil->status);
 
 	rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
 	if (rc == 0) {
 		/* Connect can take lots of time */
 		mod_timer(&wil->connect_timer,
 			  jiffies + msecs_to_jiffies(2000));
+	} else {
+		clear_bit(wil_status_dontscan, &wil->status);
+		clear_bit(wil_status_fwconnecting, &wil->status);
 	}
 
  out:
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index ea49c8a..c97b864 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -56,27 +56,21 @@ static void _wil6210_disconnect(struct wil6210_priv *wil, void *bssid)
 {
 	uint i;
 	struct net_device *ndev = wil_to_ndev(wil);
-	struct wireless_dev *wdev = wil->wdev;
 
 	wil_dbg_misc(wil, "%s()\n", __func__);
 
 	wil_link_off(wil);
-	clear_bit(wil_status_fwconnected, &wil->status);
-
-	switch (wdev->sme_state) {
-	case CFG80211_SME_CONNECTED:
-		cfg80211_disconnected(ndev, WLAN_STATUS_UNSPECIFIED_FAILURE,
+	if (test_bit(wil_status_fwconnected, &wil->status)) {
+		clear_bit(wil_status_fwconnected, &wil->status);
+		cfg80211_disconnected(ndev,
+				      WLAN_STATUS_UNSPECIFIED_FAILURE,
 				      NULL, 0, GFP_KERNEL);
-		break;
-	case CFG80211_SME_CONNECTING:
+	} else if (test_bit(wil_status_fwconnecting, &wil->status)) {
 		cfg80211_connect_result(ndev, bssid, NULL, 0, NULL, 0,
 					WLAN_STATUS_UNSPECIFIED_FAILURE,
 					GFP_KERNEL);
-		break;
-	default:
-		break;
 	}
-
+	clear_bit(wil_status_fwconnecting, &wil->status);
 	for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++)
 		wil_vring_fini_tx(wil, i);
 
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 2e3c26e..373cf65 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -186,6 +186,7 @@ struct vring {
 
 enum { /* for wil6210_priv.status */
 	wil_status_fwready = 0,
+	wil_status_fwconnecting,
 	wil_status_fwconnected,
 	wil_status_dontscan,
 	wil_status_reset_done,
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index a091eb1..527ffb5 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -409,7 +409,7 @@ static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
 
 	if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
 	    (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
-		if (wdev->sme_state != CFG80211_SME_CONNECTING) {
+		if (!test_bit(wil_status_fwconnecting, &wil->status)) {
 			wil_err(wil, "Not in connecting state\n");
 			return;
 		}
@@ -433,6 +433,7 @@ static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
 
 		cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
 	}
+	clear_bit(wil_status_fwconnecting, &wil->status);
 	set_bit(wil_status_fwconnected, &wil->status);
 
 	/* FIXME FW can transmit only ucast frames to peer */
-- 
cgit v0.10.2


From 9c8426fc79eef00464d33e774085395cac41d091 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 28 May 2013 18:04:44 +0200
Subject: ath9k_hw: fix PA predistortion miscalibration

If any bins from the training data are skipped (i != max_index), the
calculated compensation curve gets distorted, and the signal will be
wildly overamplified. This may be the cause of the reported hardware
damage that was caused by PA predistortion (because of which PAPRD was
disabled by default).

When calculating the x_est, Y, theta values, the use of max_index and i
was reversed. i points to the bin index whereas max_index refers to the
index of the calculated arrays.

Note that PA predistortion is still disabled, it will be re-enabled
after it has been properly validated.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
index 09c1f9d..6343cc9 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
@@ -454,6 +454,8 @@ static bool create_pa_curve(u32 *data_L, u32 *data_U, u32 *pa_table, u16 *gain)
 		if (accum_cnt <= thresh_accum_cnt)
 			continue;
 
+		max_index++;
+
 		/* sum(tx amplitude) */
 		accum_tx = ((data_L[i] >> 16) & 0xffff) |
 		    ((data_U[i] & 0x7ff) << 16);
@@ -468,20 +470,21 @@ static bool create_pa_curve(u32 *data_L, u32 *data_U, u32 *pa_table, u16 *gain)
 
 		accum_tx <<= scale_factor;
 		accum_rx <<= scale_factor;
-		x_est[i + 1] = (((accum_tx + accum_cnt) / accum_cnt) + 32) >>
-		    scale_factor;
+		x_est[max_index] =
+			(((accum_tx + accum_cnt) / accum_cnt) + 32) >>
+			scale_factor;
 
-		Y[i + 1] = ((((accum_rx + accum_cnt) / accum_cnt) + 32) >>
+		Y[max_index] =
+			((((accum_rx + accum_cnt) / accum_cnt) + 32) >>
 			    scale_factor) +
-			    (1 << scale_factor) * max_index + 16;
+			(1 << scale_factor) * i + 16;
 
 		if (accum_ang >= (1 << 26))
 			accum_ang -= 1 << 27;
 
-		theta[i + 1] = ((accum_ang * (1 << scale_factor)) + accum_cnt) /
-		    accum_cnt;
-
-		max_index++;
+		theta[max_index] =
+			((accum_ang * (1 << scale_factor)) + accum_cnt) /
+			accum_cnt;
 	}
 
 	/*
-- 
cgit v0.10.2


From b6c32f88740013b78eee68a604678b548750510f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 29 May 2013 15:31:40 +0530
Subject: net: wireless: p54spi: Use module_spi_driver macro

module_spi_driver() eliminates some boiler plate and makes code
simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c
index 978e7eb..146e653 100644
--- a/drivers/net/wireless/p54/p54spi.c
+++ b/drivers/net/wireless/p54/p54spi.c
@@ -713,27 +713,7 @@ static struct spi_driver p54spi_driver = {
 	.remove		= p54spi_remove,
 };
 
-static int __init p54spi_init(void)
-{
-	int ret;
-
-	ret = spi_register_driver(&p54spi_driver);
-	if (ret < 0) {
-		printk(KERN_ERR "failed to register SPI driver: %d", ret);
-		goto out;
-	}
-
-out:
-	return ret;
-}
-
-static void __exit p54spi_exit(void)
-{
-	spi_unregister_driver(&p54spi_driver);
-}
-
-module_init(p54spi_init);
-module_exit(p54spi_exit);
+module_spi_driver(p54spi_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Christian Lamparter <chunkeey@web.de>");
-- 
cgit v0.10.2


From acba7bb3c246618c8af895a548ec1b0d3da050d0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 29 May 2013 15:31:41 +0530
Subject: net: wireless: p54spi: Fix commenting style

Make the commenting style consistent with networking block comment
style as suggested by checkpatch.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c
index 146e653..7fc46f2 100644
--- a/drivers/net/wireless/p54/p54spi.c
+++ b/drivers/net/wireless/p54/p54spi.c
@@ -42,8 +42,7 @@
 
 MODULE_FIRMWARE("3826.arm");
 
-/*
- * gpios should be handled in board files and provided via platform data,
+/* gpios should be handled in board files and provided via platform data,
  * but because it's currently impossible for p54spi to have a header file
  * in include/linux, let's use module paramaters for now
  */
@@ -191,8 +190,7 @@ static int p54spi_request_eeprom(struct ieee80211_hw *dev)
 	const struct firmware *eeprom;
 	int ret;
 
-	/*
-	 * allow users to customize their eeprom.
+	/* allow users to customize their eeprom.
 	 */
 
 	ret = request_firmware(&eeprom, "3826.eeprom", &priv->spi->dev);
@@ -285,8 +283,7 @@ static void p54spi_power_on(struct p54s_priv *priv)
 	gpio_set_value(p54spi_gpio_power, 1);
 	enable_irq(gpio_to_irq(p54spi_gpio_irq));
 
-	/*
-	 * need to wait a while before device can be accessed, the length
+	/* need to wait a while before device can be accessed, the length
 	 * is just a guess
 	 */
 	msleep(10);
@@ -365,7 +362,8 @@ static int p54spi_rx(struct p54s_priv *priv)
 	/* Firmware may insert up to 4 padding bytes after the lmac header,
 	 * but it does not amend the size of SPI data transfer.
 	 * Such packets has correct data size in header, thus referencing
-	 * past the end of allocated skb. Reserve extra 4 bytes for this case */
+	 * past the end of allocated skb. Reserve extra 4 bytes for this case
+	 */
 	skb = dev_alloc_skb(len + 4);
 	if (!skb) {
 		p54spi_sleep(priv);
@@ -383,7 +381,8 @@ static int p54spi_rx(struct p54s_priv *priv)
 	}
 	p54spi_sleep(priv);
 	/* Put additional bytes to compensate for the possible
-	 * alignment-caused truncation */
+	 * alignment-caused truncation
+	 */
 	skb_put(skb, 4);
 
 	if (p54_rx(priv->hw, skb) == 0)
-- 
cgit v0.10.2


From 5f07d15a77e3098e7286b016247ecca20a0209d4 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 29 May 2013 13:04:20 +0300
Subject: mwifiex: dump small buffers with help of %*ph

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c
index 6bcb66e..122175a 100644
--- a/drivers/net/wireless/mwifiex/join.c
+++ b/drivers/net/wireless/mwifiex/join.c
@@ -919,9 +919,8 @@ mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
 	memcpy(&priv->curr_bss_params.data_rates,
 	       &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
 
-	dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%02x %02x %02x %02x\n",
-		adhoc_start->data_rate[0], adhoc_start->data_rate[1],
-		adhoc_start->data_rate[2], adhoc_start->data_rate[3]);
+	dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%4ph\n",
+		adhoc_start->data_rate);
 
 	dev_dbg(adapter->dev, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
 
-- 
cgit v0.10.2


From a910e4a94f6923c8c988565525f017f687bf7205 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Fri, 24 May 2013 20:04:38 -0400
Subject: cw1200: add driver for the ST-E CW1100 & CW1200 WLAN chipsets

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/MAINTAINERS b/MAINTAINERS
index 3d7782b..e5069c2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2299,6 +2299,11 @@ M:	Jaya Kumar <jayakumar.alsa@gmail.com>
 S:	Maintained
 F:	sound/pci/cs5535audio/
 
+CW1200 WLAN driver
+M:     Solomon Peachy <pizza@shaftnet.org>
+S:     Maintained
+F:     drivers/net/wireless/cw1200/
+
 CX18 VIDEO4LINUX DRIVER
 M:	Andy Walls <awalls@md.metrocast.net>
 L:	ivtv-devel@ivtvdriver.org (moderated for non-subscribers)
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index f8f0156..200020e 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -280,5 +280,6 @@ source "drivers/net/wireless/rtlwifi/Kconfig"
 source "drivers/net/wireless/ti/Kconfig"
 source "drivers/net/wireless/zd1211rw/Kconfig"
 source "drivers/net/wireless/mwifiex/Kconfig"
+source "drivers/net/wireless/cw1200/Kconfig"
 
 endif # WLAN
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index 67156ef..0fab227 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -57,3 +57,5 @@ obj-$(CONFIG_MWIFIEX)	+= mwifiex/
 
 obj-$(CONFIG_BRCMFMAC)	+= brcm80211/
 obj-$(CONFIG_BRCMSMAC)	+= brcm80211/
+
+obj-$(CONFIG_CW1200)	+= cw1200/
diff --git a/drivers/net/wireless/cw1200/Kconfig b/drivers/net/wireless/cw1200/Kconfig
new file mode 100644
index 0000000..13e3611
--- /dev/null
+++ b/drivers/net/wireless/cw1200/Kconfig
@@ -0,0 +1,46 @@
+config CW1200
+	tristate "CW1200 WLAN support"
+	depends on MAC80211 && CFG80211
+	help
+	  This is a driver for the ST-E CW1100 & CW1200 WLAN chipsets.
+	  This option just enables the driver core, see below for
+	  specific bus support.
+
+if CW1200
+
+config CW1200_WLAN_SDIO
+	tristate "Support SDIO platforms"
+	depends on CW1200 && MMC
+	help
+	  Enable support for the CW1200 connected via an SDIO bus.
+
+config CW1200_WLAN_SPI
+	tristate "Support SPI platforms"
+	depends on CW1200 && SPI
+	help
+	  Enables support for the CW1200 connected via a SPI bus.
+
+config CW1200_WLAN_SAGRAD
+	tristate "Support Sagrad SG901-1091/1098 modules"
+	depends on CW1200_WLAN_SDIO
+	help
+	  This provides the platform data glue to support the
+	  Sagrad SG901-1091/1098 modules in their standard SDIO EVK.
+	  It also includes example SPI platform data.
+
+menu "Driver debug features"
+	depends on CW1200 && DEBUG_FS
+
+config CW1200_ETF
+	bool "Enable CW1200 Engineering Test Framework hooks"
+	help
+	  If you don't know what this is, just say N.
+
+config CW1200_ITP
+	bool "Enable ITP access"
+	help
+	  If you don't know what this is, just say N.
+
+endmenu
+
+endif
diff --git a/drivers/net/wireless/cw1200/Makefile b/drivers/net/wireless/cw1200/Makefile
new file mode 100644
index 0000000..c197372
--- /dev/null
+++ b/drivers/net/wireless/cw1200/Makefile
@@ -0,0 +1,24 @@
+cw1200_core-y := \
+		fwio.o \
+		txrx.o \
+		main.o \
+		queue.o \
+		hwio.o \
+		bh.o \
+		wsm.o \
+		sta.o \
+		scan.o \
+		pm.o \
+		debug.o
+cw1200_core-$(CONFIG_CW1200_ITP)	+= itp.o
+
+# CFLAGS_sta.o += -DDEBUG
+
+cw1200_wlan_sdio-y := cw1200_sdio.o
+cw1200_wlan_spi-y := cw1200_spi.o
+cw1200_wlan_sagrad-y := cw1200_sagrad.o
+
+obj-$(CONFIG_CW1200) += cw1200_core.o
+obj-$(CONFIG_CW1200_WLAN_SDIO) += cw1200_wlan_sdio.o
+obj-$(CONFIG_CW1200_WLAN_SPI) += cw1200_wlan_spi.o
+obj-$(CONFIG_CW1200_WLAN_SAGRAD) += cw1200_wlan_sagrad.o
diff --git a/drivers/net/wireless/cw1200/bh.c b/drivers/net/wireless/cw1200/bh.c
new file mode 100644
index 0000000..cf7375f
--- /dev/null
+++ b/drivers/net/wireless/cw1200/bh.c
@@ -0,0 +1,616 @@
+/*
+ * Device handling thread implementation for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver, which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <net/mac80211.h>
+#include <linux/kthread.h>
+#include <linux/timer.h>
+
+#include "cw1200.h"
+#include "bh.h"
+#include "hwio.h"
+#include "wsm.h"
+#include "sbus.h"
+#include "debug.h"
+#include "fwio.h"
+
+static int cw1200_bh(void *arg);
+
+#define DOWNLOAD_BLOCK_SIZE_WR	(0x1000 - 4)
+/* an SPI message cannot be bigger than (2"12-1)*2 bytes
+ * "*2" to cvt to bytes */
+#define MAX_SZ_RD_WR_BUFFERS	(DOWNLOAD_BLOCK_SIZE_WR*2)
+#define PIGGYBACK_CTRL_REG	(2)
+#define EFFECTIVE_BUF_SIZE	(MAX_SZ_RD_WR_BUFFERS - PIGGYBACK_CTRL_REG)
+
+/* Suspend state privates */
+enum cw1200_bh_pm_state {
+	CW1200_BH_RESUMED = 0,
+	CW1200_BH_SUSPEND,
+	CW1200_BH_SUSPENDED,
+	CW1200_BH_RESUME,
+};
+
+typedef int (*cw1200_wsm_handler)(struct cw1200_common *priv,
+	u8 *data, size_t size);
+
+static void cw1200_bh_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+	container_of(work, struct cw1200_common, bh_work);
+	cw1200_bh(priv);
+}
+
+int cw1200_register_bh(struct cw1200_common *priv)
+{
+	int err = 0;
+	/* Realtime workqueue */
+	priv->bh_workqueue = alloc_workqueue("cw1200_bh",
+				WQ_MEM_RECLAIM | WQ_HIGHPRI
+				| WQ_CPU_INTENSIVE, 1);
+
+	if (!priv->bh_workqueue)
+		return -ENOMEM;
+
+	INIT_WORK(&priv->bh_work, cw1200_bh_work);
+
+	pr_debug("[BH] register.\n");
+
+	atomic_set(&priv->bh_rx, 0);
+	atomic_set(&priv->bh_tx, 0);
+	atomic_set(&priv->bh_term, 0);
+	atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
+	priv->bh_error = 0;
+	priv->hw_bufs_used = 0;
+	priv->buf_id_tx = 0;
+	priv->buf_id_rx = 0;
+	init_waitqueue_head(&priv->bh_wq);
+	init_waitqueue_head(&priv->bh_evt_wq);
+
+	err = !queue_work(priv->bh_workqueue, &priv->bh_work);
+	WARN_ON(err);
+	return err;
+}
+
+void cw1200_unregister_bh(struct cw1200_common *priv)
+{
+	atomic_add(1, &priv->bh_term);
+	wake_up(&priv->bh_wq);
+
+	flush_workqueue(priv->bh_workqueue);
+
+	destroy_workqueue(priv->bh_workqueue);
+	priv->bh_workqueue = NULL;
+
+	pr_debug("[BH] unregistered.\n");
+}
+
+void cw1200_irq_handler(struct cw1200_common *priv)
+{
+	pr_debug("[BH] irq.\n");
+
+	/* Disable Interrupts! */
+	/* NOTE:  sbus_ops->lock already held */
+	__cw1200_irq_enable(priv, 0);
+
+	if (/* WARN_ON */(priv->bh_error))
+		return;
+
+	if (atomic_add_return(1, &priv->bh_rx) == 1)
+		wake_up(&priv->bh_wq);
+}
+EXPORT_SYMBOL_GPL(cw1200_irq_handler);
+
+void cw1200_bh_wakeup(struct cw1200_common *priv)
+{
+	pr_debug("[BH] wakeup.\n");
+	if (priv->bh_error) {
+		pr_err("[BH] wakeup failed (BH error)\n");
+		return;
+	}
+
+	if (atomic_add_return(1, &priv->bh_tx) == 1)
+		wake_up(&priv->bh_wq);
+}
+
+int cw1200_bh_suspend(struct cw1200_common *priv)
+{
+	pr_debug("[BH] suspend.\n");
+	if (priv->bh_error) {
+		wiphy_warn(priv->hw->wiphy, "BH error -- can't suspend\n");
+		return -EINVAL;
+	}
+
+	atomic_set(&priv->bh_suspend, CW1200_BH_SUSPEND);
+	wake_up(&priv->bh_wq);
+	return wait_event_timeout(priv->bh_evt_wq, priv->bh_error ||
+		(CW1200_BH_SUSPENDED == atomic_read(&priv->bh_suspend)),
+		 1 * HZ) ? 0 : -ETIMEDOUT;
+}
+
+int cw1200_bh_resume(struct cw1200_common *priv)
+{
+	pr_debug("[BH] resume.\n");
+	if (priv->bh_error) {
+		wiphy_warn(priv->hw->wiphy, "BH error -- can't resume\n");
+		return -EINVAL;
+	}
+
+	atomic_set(&priv->bh_suspend, CW1200_BH_RESUME);
+	wake_up(&priv->bh_wq);
+	return wait_event_timeout(priv->bh_evt_wq, priv->bh_error ||
+		(CW1200_BH_RESUMED == atomic_read(&priv->bh_suspend)),
+		1 * HZ) ? 0 : -ETIMEDOUT;
+}
+
+static inline void wsm_alloc_tx_buffer(struct cw1200_common *priv)
+{
+	++priv->hw_bufs_used;
+}
+
+int wsm_release_tx_buffer(struct cw1200_common *priv, int count)
+{
+	int ret = 0;
+	int hw_bufs_used = priv->hw_bufs_used;
+
+	priv->hw_bufs_used -= count;
+	if (WARN_ON(priv->hw_bufs_used < 0))
+		ret = -1;
+	else if (hw_bufs_used >= priv->wsm_caps.input_buffers)
+		ret = 1;
+	if (!priv->hw_bufs_used)
+		wake_up(&priv->bh_evt_wq);
+	return ret;
+}
+
+static int cw1200_bh_read_ctrl_reg(struct cw1200_common *priv,
+					  u16 *ctrl_reg)
+{
+	int ret;
+
+	ret = cw1200_reg_read_16(priv,
+			ST90TDS_CONTROL_REG_ID, ctrl_reg);
+	if (ret) {
+		ret = cw1200_reg_read_16(priv,
+				ST90TDS_CONTROL_REG_ID, ctrl_reg);
+		if (ret)
+			pr_err("[BH] Failed to read control register.\n");
+	}
+
+	return ret;
+}
+
+static int cw1200_device_wakeup(struct cw1200_common *priv)
+{
+	u16 ctrl_reg;
+	int ret;
+
+	pr_debug("[BH] Device wakeup.\n");
+
+	/* First, set the dpll register */
+	ret = cw1200_reg_write_32(priv, ST90TDS_TSET_GEN_R_W_REG_ID,
+				  cw1200_dpll_from_clk(priv->hw_refclk));
+	if (WARN_ON(ret))
+		return ret;
+
+	/* To force the device to be always-on, the host sets WLAN_UP to 1 */
+	ret = cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID,
+			ST90TDS_CONT_WUP_BIT);
+	if (WARN_ON(ret))
+		return ret;
+
+	ret = cw1200_bh_read_ctrl_reg(priv, &ctrl_reg);
+	if (WARN_ON(ret))
+		return ret;
+
+	/* If the device returns WLAN_RDY as 1, the device is active and will
+	 * remain active. */
+	if (ctrl_reg & ST90TDS_CONT_RDY_BIT) {
+		pr_debug("[BH] Device awake.\n");
+		return 1;
+	}
+
+	return 0;
+}
+
+/* Must be called from BH thraed. */
+void cw1200_enable_powersave(struct cw1200_common *priv,
+			     bool enable)
+{
+	pr_debug("[BH] Powerave is %s.\n",
+		 enable ? "enabled" : "disabled");
+	priv->powersave_enabled = enable;
+}
+
+static int cw1200_bh_rx_helper(struct cw1200_common *priv,
+			       uint16_t *ctrl_reg,
+			       int *tx)
+{
+	size_t read_len = 0;
+	struct sk_buff *skb_rx = NULL;
+	struct wsm_hdr *wsm;
+	size_t wsm_len;
+	u16 wsm_id;
+	u8 wsm_seq;
+	int rx_resync = 1;
+
+	size_t alloc_len;
+	u8 *data;
+
+	read_len = (*ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) * 2;
+	if (!read_len)
+		return 0; /* No more work */
+
+	if (WARN_ON((read_len < sizeof(struct wsm_hdr)) ||
+		    (read_len > EFFECTIVE_BUF_SIZE))) {
+		pr_debug("Invalid read len: %zu (%04x)",
+			 read_len, *ctrl_reg);
+		goto err;
+	}
+
+	/* Add SIZE of PIGGYBACK reg (CONTROL Reg)
+	 * to the NEXT Message length + 2 Bytes for SKB */
+	read_len = read_len + 2;
+
+	alloc_len = priv->sbus_ops->align_size(
+		priv->sbus_priv, read_len);
+
+	/* Check if not exceeding CW1200 capabilities */
+	if (WARN_ON_ONCE(alloc_len > EFFECTIVE_BUF_SIZE)) {
+		pr_debug("Read aligned len: %zu\n",
+			 alloc_len);
+	}
+
+	skb_rx = dev_alloc_skb(alloc_len);
+	if (WARN_ON(!skb_rx))
+		goto err;
+
+	skb_trim(skb_rx, 0);
+	skb_put(skb_rx, read_len);
+	data = skb_rx->data;
+	if (WARN_ON(!data))
+		goto err;
+
+	if (WARN_ON(cw1200_data_read(priv, data, alloc_len))) {
+		pr_err("rx blew up, len %zu\n", alloc_len);
+		goto err;
+	}
+
+	/* Piggyback */
+	*ctrl_reg = __le16_to_cpu(
+		((__le16 *)data)[alloc_len / 2 - 1]);
+
+	wsm = (struct wsm_hdr *)data;
+	wsm_len = __le16_to_cpu(wsm->len);
+	if (WARN_ON(wsm_len > read_len))
+		goto err;
+
+	if (priv->wsm_enable_wsm_dumps)
+		print_hex_dump_bytes("<-- ",
+				     DUMP_PREFIX_NONE,
+				     data, wsm_len);
+
+	wsm_id  = __le16_to_cpu(wsm->id) & 0xFFF;
+	wsm_seq = (__le16_to_cpu(wsm->id) >> 13) & 7;
+
+	skb_trim(skb_rx, wsm_len);
+
+	if (wsm_id == 0x0800) {
+		wsm_handle_exception(priv,
+				     &data[sizeof(*wsm)],
+				     wsm_len - sizeof(*wsm));
+		goto err;
+	} else if (!rx_resync) {
+		if (WARN_ON(wsm_seq != priv->wsm_rx_seq))
+			goto err;
+	}
+	priv->wsm_rx_seq = (wsm_seq + 1) & 7;
+	rx_resync = 0;
+
+	if (wsm_id & 0x0400) {
+		int rc = wsm_release_tx_buffer(priv, 1);
+		if (WARN_ON(rc < 0))
+			return rc;
+		else if (rc > 0)
+			*tx = 1;
+	}
+
+	/* cw1200_wsm_rx takes care on SKB livetime */
+	if (WARN_ON(wsm_handle_rx(priv, wsm_id, wsm, &skb_rx)))
+		goto err;
+
+	if (skb_rx) {
+		dev_kfree_skb(skb_rx);
+		skb_rx = NULL;
+	}
+
+	return 0;
+
+err:
+	if (skb_rx) {
+		dev_kfree_skb(skb_rx);
+		skb_rx = NULL;
+	}
+	return -1;
+}
+
+static int cw1200_bh_tx_helper(struct cw1200_common *priv,
+			       int *pending_tx,
+			       int *tx_burst)
+{
+	size_t tx_len;
+	u8 *data;
+	int ret;
+	struct wsm_hdr *wsm;
+
+	if (priv->device_can_sleep) {
+		ret = cw1200_device_wakeup(priv);
+		if (WARN_ON(ret < 0)) { /* Error in wakeup */
+			*pending_tx = 1;
+			return 0;
+		} else if (ret) { /* Woke up */
+			priv->device_can_sleep = false;
+		} else { /* Did not awake */
+			*pending_tx = 1;
+			return 0;
+		}
+	}
+
+	wsm_alloc_tx_buffer(priv);
+	ret = wsm_get_tx(priv, &data, &tx_len, tx_burst);
+	if (ret <= 0) {
+		wsm_release_tx_buffer(priv, 1);
+		if (WARN_ON(ret < 0))
+			return ret; /* Error */
+		return 0; /* No work */
+	}
+
+	wsm = (struct wsm_hdr *)data;
+	BUG_ON(tx_len < sizeof(*wsm));
+	BUG_ON(__le16_to_cpu(wsm->len) != tx_len);
+
+	atomic_add(1, &priv->bh_tx);
+
+	tx_len = priv->sbus_ops->align_size(
+		priv->sbus_priv, tx_len);
+
+	/* Check if not exceeding CW1200 capabilities */
+	if (WARN_ON_ONCE(tx_len > EFFECTIVE_BUF_SIZE))
+		pr_debug("Write aligned len: %zu\n", tx_len);
+
+	wsm->id &= __cpu_to_le16(0xffff ^ WSM_TX_SEQ(WSM_TX_SEQ_MAX));
+	wsm->id |= __cpu_to_le16(WSM_TX_SEQ(priv->wsm_tx_seq));
+
+	if (WARN_ON(cw1200_data_write(priv, data, tx_len))) {
+		pr_err("tx blew up, len %zu\n", tx_len);
+		wsm_release_tx_buffer(priv, 1);
+		return -1; /* Error */
+	}
+
+	if (priv->wsm_enable_wsm_dumps)
+		print_hex_dump_bytes("--> ",
+				     DUMP_PREFIX_NONE,
+				     data,
+				     __le16_to_cpu(wsm->len));
+
+	wsm_txed(priv, data);
+	priv->wsm_tx_seq = (priv->wsm_tx_seq + 1) & WSM_TX_SEQ_MAX;
+
+	if (*tx_burst > 1) {
+		cw1200_debug_tx_burst(priv);
+		return 1; /* Work remains */
+	}
+
+	return 0;
+}
+
+static int cw1200_bh(void *arg)
+{
+	struct cw1200_common *priv = arg;
+	int rx, tx, term, suspend;
+	u16 ctrl_reg = 0;
+	int tx_allowed;
+	int pending_tx = 0;
+	int tx_burst;
+	long status;
+	u32 dummy;
+	int ret;
+
+	for (;;) {
+		if (!priv->hw_bufs_used &&
+		    priv->powersave_enabled &&
+		    !priv->device_can_sleep &&
+		    !atomic_read(&priv->recent_scan)) {
+			status = 1 * HZ;
+			pr_debug("[BH] Device wakedown. No data.\n");
+			cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID, 0);
+			priv->device_can_sleep = true;
+		} else if (priv->hw_bufs_used) {
+			/* Interrupt loss detection */
+			status = 1 * HZ;
+		} else {
+			status = MAX_SCHEDULE_TIMEOUT;
+		}
+
+		/* Dummy Read for SDIO retry mechanism*/
+		if ((priv->hw_type != -1) &&
+		    (atomic_read(&priv->bh_rx) == 0) &&
+		    (atomic_read(&priv->bh_tx) == 0))
+			cw1200_reg_read(priv, ST90TDS_CONFIG_REG_ID,
+					&dummy, sizeof(dummy));
+
+		pr_debug("[BH] waiting ...\n");
+		status = wait_event_interruptible_timeout(priv->bh_wq, ({
+				rx = atomic_xchg(&priv->bh_rx, 0);
+				tx = atomic_xchg(&priv->bh_tx, 0);
+				term = atomic_xchg(&priv->bh_term, 0);
+				suspend = pending_tx ?
+					0 : atomic_read(&priv->bh_suspend);
+				(rx || tx || term || suspend || priv->bh_error);
+			}), status);
+
+		pr_debug("[BH] - rx: %d, tx: %d, term: %d, suspend: %d, status: %ld\n",
+			 rx, tx, term, suspend, status);
+
+		/* Did an error occur? */
+		if ((status < 0 && status != -ERESTARTSYS) ||
+		    term || priv->bh_error) {
+			break;
+		}
+		if (!status) {  /* wait_event timed out */
+			unsigned long timestamp = jiffies;
+			long timeout;
+			int pending = 0;
+			int i;
+
+			/* Check to see if we have any outstanding frames */
+			if (priv->hw_bufs_used && (!rx || !tx)) {
+				wiphy_warn(priv->hw->wiphy,
+					   "Missed interrupt? (%d frames outstanding)\n",
+					   priv->hw_bufs_used);
+				rx = 1;
+
+				/* Get a timestamp of "oldest" frame */
+				for (i = 0; i < 4; ++i)
+					pending += cw1200_queue_get_xmit_timestamp(
+						&priv->tx_queue[i],
+						&timestamp,
+						priv->pending_frame_id);
+
+				/* Check if frame transmission is timed out.
+				 * Add an extra second with respect to possible
+				 * interrupt loss.
+				 */
+				timeout = timestamp +
+					WSM_CMD_LAST_CHANCE_TIMEOUT +
+					1 * HZ  -
+					jiffies;
+
+				/* And terminate BH thread if the frame is "stuck" */
+				if (pending && timeout < 0) {
+					wiphy_warn(priv->hw->wiphy,
+						   "Timeout waiting for TX confirm (%d/%d pending, %ld vs %lu).\n",
+						   priv->hw_bufs_used, pending,
+						   timestamp, jiffies);
+					break;
+				}
+			} else if (!priv->device_can_sleep &&
+				   !atomic_read(&priv->recent_scan)) {
+				pr_debug("[BH] Device wakedown. Timeout.\n");
+				cw1200_reg_write_16(priv,
+						    ST90TDS_CONTROL_REG_ID, 0);
+				priv->device_can_sleep = true;
+			}
+			goto done;
+		} else if (suspend) {
+			pr_debug("[BH] Device suspend.\n");
+			if (priv->powersave_enabled) {
+				pr_debug("[BH] Device wakedown. Suspend.\n");
+				cw1200_reg_write_16(priv,
+						    ST90TDS_CONTROL_REG_ID, 0);
+				priv->device_can_sleep = true;
+			}
+
+			atomic_set(&priv->bh_suspend, CW1200_BH_SUSPENDED);
+			wake_up(&priv->bh_evt_wq);
+			status = wait_event_interruptible(priv->bh_wq,
+							  CW1200_BH_RESUME == atomic_read(&priv->bh_suspend));
+			if (status < 0) {
+				wiphy_err(priv->hw->wiphy,
+					  "Failed to wait for resume: %ld.\n",
+					  status);
+				break;
+			}
+			pr_debug("[BH] Device resume.\n");
+			atomic_set(&priv->bh_suspend, CW1200_BH_RESUMED);
+			wake_up(&priv->bh_evt_wq);
+			atomic_add(1, &priv->bh_rx);
+			goto done;
+		}
+
+	rx:
+		tx += pending_tx;
+		pending_tx = 0;
+
+		if (cw1200_bh_read_ctrl_reg(priv, &ctrl_reg))
+			break;
+
+		/* Don't bother trying to rx unless we have data to read */
+		if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) {
+			ret = cw1200_bh_rx_helper(priv, &ctrl_reg, &tx);
+			if (ret < 0)
+				break;
+			/* Double up here if there's more data.. */
+			if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK) {
+				ret = cw1200_bh_rx_helper(priv, &ctrl_reg, &tx);
+				if (ret < 0)
+					break;
+			}
+		}
+
+	tx:
+		if (tx) {
+			tx = 0;
+
+			BUG_ON(priv->hw_bufs_used > priv->wsm_caps.input_buffers);
+			tx_burst = priv->wsm_caps.input_buffers - priv->hw_bufs_used;
+			tx_allowed = tx_burst > 0;
+
+			if (!tx_allowed) {
+				/* Buffers full.  Ensure we process tx
+				 * after we handle rx..
+				 */
+				pending_tx = tx;
+				goto done_rx;
+			}
+			ret = cw1200_bh_tx_helper(priv, &pending_tx, &tx_burst);
+			if (ret < 0)
+				break;
+			if (ret > 0) /* More to transmit */
+				tx = ret;
+
+			/* Re-read ctrl reg */
+			if (cw1200_bh_read_ctrl_reg(priv, &ctrl_reg))
+				break;
+		}
+
+	done_rx:
+		if (priv->bh_error)
+			break;
+		if (ctrl_reg & ST90TDS_CONT_NEXT_LEN_MASK)
+			goto rx;
+		if (tx)
+			goto tx;
+
+	done:
+		/* Re-enable device interrupts */
+		priv->sbus_ops->lock(priv->sbus_priv);
+		__cw1200_irq_enable(priv, 1);
+		priv->sbus_ops->unlock(priv->sbus_priv);
+	}
+
+	/* Explicitly disable device interrupts */
+	priv->sbus_ops->lock(priv->sbus_priv);
+	__cw1200_irq_enable(priv, 0);
+	priv->sbus_ops->unlock(priv->sbus_priv);
+
+	if (!term) {
+		pr_err("[BH] Fatal error, exiting.\n");
+		priv->bh_error = 1;
+		/* TODO: schedule_work(recovery) */
+	}
+	return 0;
+}
diff --git a/drivers/net/wireless/cw1200/bh.h b/drivers/net/wireless/cw1200/bh.h
new file mode 100644
index 0000000..af6a485
--- /dev/null
+++ b/drivers/net/wireless/cw1200/bh.h
@@ -0,0 +1,28 @@
+/*
+ * Device handling thread interface for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_BH_H
+#define CW1200_BH_H
+
+/* extern */ struct cw1200_common;
+
+int cw1200_register_bh(struct cw1200_common *priv);
+void cw1200_unregister_bh(struct cw1200_common *priv);
+void cw1200_irq_handler(struct cw1200_common *priv);
+void cw1200_bh_wakeup(struct cw1200_common *priv);
+int cw1200_bh_suspend(struct cw1200_common *priv);
+int cw1200_bh_resume(struct cw1200_common *priv);
+/* Must be called from BH thread. */
+void cw1200_enable_powersave(struct cw1200_common *priv,
+			     bool enable);
+int wsm_release_tx_buffer(struct cw1200_common *priv, int count);
+
+#endif /* CW1200_BH_H */
diff --git a/drivers/net/wireless/cw1200/cw1200.h b/drivers/net/wireless/cw1200/cw1200.h
new file mode 100644
index 0000000..2aa17ca
--- /dev/null
+++ b/drivers/net/wireless/cw1200/cw1200.h
@@ -0,0 +1,332 @@
+/*
+ * Common private data for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on the mac80211 Prism54 code, which is
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ *
+ * Based on the islsm (softmac prism54) driver, which is:
+ * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_H
+#define CW1200_H
+
+#include <linux/wait.h>
+#include <linux/version.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <net/mac80211.h>
+
+#include "queue.h"
+#include "wsm.h"
+#include "scan.h"
+#include "txrx.h"
+#include "pm.h"
+
+/* Forward declarations */
+struct sbus_ops;
+struct task_struct;
+struct cw1200_debug_priv;
+struct firmware;
+
+#ifdef CONFIG_CW1200_ETF
+extern int etf_mode;
+extern char *etf_firmware;
+#endif
+
+#define CW1200_MAX_CTRL_FRAME_LEN	(0x1000)
+
+#define CW1200_MAX_STA_IN_AP_MODE	(5)
+#define CW1200_LINK_ID_AFTER_DTIM	(CW1200_MAX_STA_IN_AP_MODE + 1)
+#define CW1200_LINK_ID_UAPSD		(CW1200_MAX_STA_IN_AP_MODE + 2)
+#define CW1200_LINK_ID_MAX		(CW1200_MAX_STA_IN_AP_MODE + 3)
+#define CW1200_MAX_REQUEUE_ATTEMPTS	(5)
+
+#define CW1200_MAX_TID			(8)
+
+#define CW1200_BLOCK_ACK_CNT		(30)
+#define CW1200_BLOCK_ACK_THLD		(800)
+#define CW1200_BLOCK_ACK_HIST		(3)
+#define CW1200_BLOCK_ACK_INTERVAL	(1 * HZ / CW1200_BLOCK_ACK_HIST)
+
+#define CW1200_JOIN_TIMEOUT		(1 * HZ)
+#define CW1200_AUTH_TIMEOUT		(5 * HZ)
+
+struct cw1200_ht_info {
+	struct ieee80211_sta_ht_cap     ht_cap;
+	enum nl80211_channel_type       channel_type;
+	u16                             operation_mode;
+};
+
+/* Please keep order */
+enum cw1200_join_status {
+	CW1200_JOIN_STATUS_PASSIVE = 0,
+	CW1200_JOIN_STATUS_MONITOR,
+	CW1200_JOIN_STATUS_JOINING,
+	CW1200_JOIN_STATUS_PRE_STA,
+	CW1200_JOIN_STATUS_STA,
+	CW1200_JOIN_STATUS_IBSS,
+	CW1200_JOIN_STATUS_AP,
+};
+
+enum cw1200_link_status {
+	CW1200_LINK_OFF,
+	CW1200_LINK_RESERVE,
+	CW1200_LINK_SOFT,
+	CW1200_LINK_HARD,
+	CW1200_LINK_RESET,
+	CW1200_LINK_RESET_REMAP,
+};
+
+extern int cw1200_power_mode;
+extern const char * const cw1200_fw_types[];
+
+struct cw1200_link_entry {
+	unsigned long			timestamp;
+	enum cw1200_link_status		status;
+	enum cw1200_link_status		prev_status;
+	u8				mac[ETH_ALEN];
+	u8				buffered[CW1200_MAX_TID];
+	struct sk_buff_head		rx_queue;
+};
+
+struct cw1200_common {
+	/* interfaces to the rest of the stack */
+	struct ieee80211_hw		*hw;
+	struct ieee80211_vif		*vif;
+	struct device			*pdev;
+
+	/* Statistics */
+	struct ieee80211_low_level_stats stats;
+
+	/* Our macaddr */
+	u8 mac_addr[ETH_ALEN];
+
+	/* Hardware interface */
+	const struct sbus_ops		*sbus_ops;
+	struct sbus_priv		*sbus_priv;
+
+	/* Hardware information */
+	enum {
+		HIF_9000_SILICON_VERSATILE = 0,
+		HIF_8601_VERSATILE,
+		HIF_8601_SILICON,
+	} hw_type;
+	enum {
+		CW1200_HW_REV_CUT10 = 10,
+		CW1200_HW_REV_CUT11 = 11,
+		CW1200_HW_REV_CUT20 = 20,
+		CW1200_HW_REV_CUT22 = 22,
+		CW1X60_HW_REV       = 40,
+	} hw_revision;
+	int                             hw_refclk;
+	bool				hw_have_5ghz;
+	const struct firmware		*sdd;
+	char                            *sdd_path;
+
+	struct cw1200_debug_priv	*debug;
+
+	struct workqueue_struct		*workqueue;
+	struct mutex			conf_mutex;
+
+	struct cw1200_queue		tx_queue[4];
+	struct cw1200_queue_stats	tx_queue_stats;
+	int				tx_burst_idx;
+
+	/* firmware/hardware info */
+	unsigned int tx_hdr_len;
+
+	/* Radio data */
+	int output_power;
+
+	/* BBP/MAC state */
+	struct ieee80211_rate		*rates;
+	struct ieee80211_rate		*mcs_rates;
+	struct ieee80211_channel	*channel;
+	struct wsm_edca_params		edca;
+	struct wsm_tx_queue_params	tx_queue_params;
+	struct wsm_mib_association_mode	association_mode;
+	struct wsm_set_bss_params	bss_params;
+	struct cw1200_ht_info		ht_info;
+	struct wsm_set_pm		powersave_mode;
+	struct wsm_set_pm		firmware_ps_mode;
+	int				cqm_rssi_thold;
+	unsigned			cqm_rssi_hyst;
+	bool				cqm_use_rssi;
+	int				cqm_beacon_loss_count;
+	int				channel_switch_in_progress;
+	wait_queue_head_t		channel_switch_done;
+	u8				long_frame_max_tx_count;
+	u8				short_frame_max_tx_count;
+	int				mode;
+	bool				enable_beacon;
+	int				beacon_int;
+	bool				listening;
+	struct wsm_rx_filter		rx_filter;
+	struct wsm_mib_multicast_filter multicast_filter;
+	bool				has_multicast_subscription;
+	bool				disable_beacon_filter;
+	struct work_struct		update_filtering_work;
+	struct work_struct		set_beacon_wakeup_period_work;
+
+	u8				ba_rx_tid_mask;
+	u8				ba_tx_tid_mask;
+
+	struct cw1200_pm_state		pm_state;
+
+	struct wsm_p2p_ps_modeinfo	p2p_ps_modeinfo;
+	struct wsm_uapsd_info		uapsd_info;
+	bool				setbssparams_done;
+	bool				bt_present;
+	u8				conf_listen_interval;
+	u32				listen_interval;
+	u32				erp_info;
+	u32				rts_threshold;
+
+	/* BH */
+	atomic_t			bh_rx;
+	atomic_t			bh_tx;
+	atomic_t			bh_term;
+	atomic_t			bh_suspend;
+
+	struct workqueue_struct         *bh_workqueue;
+	struct work_struct              bh_work;
+
+	int				bh_error;
+	wait_queue_head_t		bh_wq;
+	wait_queue_head_t		bh_evt_wq;
+	u8				buf_id_tx;
+	u8				buf_id_rx;
+	u8				wsm_rx_seq;
+	u8				wsm_tx_seq;
+	int				hw_bufs_used;
+	bool				powersave_enabled;
+	bool				device_can_sleep;
+
+	/* Scan status */
+	struct cw1200_scan scan;
+	/* Keep cw1200 awake (WUP = 1) 1 second after each scan to avoid
+	 * FW issue with sleeping/waking up. */
+	atomic_t			recent_scan;
+	struct delayed_work		clear_recent_scan_work;
+
+	/* WSM */
+	struct wsm_startup_ind		wsm_caps;
+	struct mutex			wsm_cmd_mux;
+	struct wsm_buf			wsm_cmd_buf;
+	struct wsm_cmd			wsm_cmd;
+	wait_queue_head_t		wsm_cmd_wq;
+	wait_queue_head_t		wsm_startup_done;
+	int                             firmware_ready;
+	atomic_t			tx_lock;
+
+	/* WSM debug */
+	int				wsm_enable_wsm_dumps;
+
+	/* WSM Join */
+	enum cw1200_join_status	join_status;
+	u32			pending_frame_id;
+	bool			join_pending;
+	struct delayed_work	join_timeout;
+	struct work_struct	unjoin_work;
+	struct work_struct	join_complete_work;
+	int			join_complete_status;
+	int			join_dtim_period;
+	bool			delayed_unjoin;
+
+	/* TX/RX and security */
+	s8			wep_default_key_id;
+	struct work_struct	wep_key_work;
+	u32			key_map;
+	struct wsm_add_key	keys[WSM_KEY_MAX_INDEX + 1];
+
+	/* AP powersave */
+	u32			link_id_map;
+	struct cw1200_link_entry link_id_db[CW1200_MAX_STA_IN_AP_MODE];
+	struct work_struct	link_id_work;
+	struct delayed_work	link_id_gc_work;
+	u32			sta_asleep_mask;
+	u32			pspoll_mask;
+	bool			aid0_bit_set;
+	spinlock_t		ps_state_lock; /* Protect power save state */
+	bool			buffered_multicasts;
+	bool			tx_multicast;
+	struct work_struct	set_tim_work;
+	struct work_struct	set_cts_work;
+	struct work_struct	multicast_start_work;
+	struct work_struct	multicast_stop_work;
+	struct timer_list	mcast_timeout;
+
+	/* WSM events and CQM implementation */
+	spinlock_t		event_queue_lock; /* Protect event queue */
+	struct list_head	event_queue;
+	struct work_struct	event_handler;
+
+	struct delayed_work	bss_loss_work;
+	spinlock_t		bss_loss_lock; /* Protect BSS loss state */
+	int                     bss_loss_state;
+	int                     bss_loss_confirm_id;
+	int			delayed_link_loss;
+	struct work_struct	bss_params_work;
+
+	/* TX rate policy cache */
+	struct tx_policy_cache tx_policy_cache;
+	struct work_struct tx_policy_upload_work;
+
+	/* legacy PS mode switch in suspend */
+	int			ps_mode_switch_in_progress;
+	wait_queue_head_t	ps_mode_switch_done;
+
+	/* Workaround for WFD testcase 6.1.10*/
+	struct work_struct	linkid_reset_work;
+	u8			action_frame_sa[ETH_ALEN];
+	u8			action_linkid;
+
+#ifdef CONFIG_CW1200_ETF
+	struct sk_buff_head etf_q;
+#endif
+};
+
+struct cw1200_sta_priv {
+	int link_id;
+};
+
+/* interfaces for the drivers */
+int cw1200_core_probe(const struct sbus_ops *sbus_ops,
+		      struct sbus_priv *sbus,
+		      struct device *pdev,
+		      struct cw1200_common **pself,
+		      int ref_clk, const u8 *macaddr,
+		      const char *sdd_path, bool have_5ghz);
+void cw1200_core_release(struct cw1200_common *self);
+
+#define FWLOAD_BLOCK_SIZE (1024)
+
+static inline int cw1200_is_ht(const struct cw1200_ht_info *ht_info)
+{
+	return ht_info->channel_type != NL80211_CHAN_NO_HT;
+}
+
+static inline int cw1200_ht_greenfield(const struct cw1200_ht_info *ht_info)
+{
+	return cw1200_is_ht(ht_info) &&
+		(ht_info->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
+		!(ht_info->operation_mode &
+		  IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+}
+
+static inline int cw1200_ht_ampdu_density(const struct cw1200_ht_info *ht_info)
+{
+	if (!cw1200_is_ht(ht_info))
+		return 0;
+	return ht_info->ht_cap.ampdu_density;
+}
+
+#endif /* CW1200_H */
diff --git a/drivers/net/wireless/cw1200/cw1200_sagrad.c b/drivers/net/wireless/cw1200/cw1200_sagrad.c
new file mode 100644
index 0000000..a5ada0e
--- /dev/null
+++ b/drivers/net/wireless/cw1200/cw1200_sagrad.c
@@ -0,0 +1,145 @@
+/*
+ * Platform glue data for ST-Ericsson CW1200 driver
+ *
+ * Copyright (c) 2013, Sagrad, Inc
+ * Author: Solomon Peachy <speachy@sagrad.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/cw1200_platform.h>
+
+MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
+MODULE_DESCRIPTION("ST-Ericsson CW1200 Platform glue driver");
+MODULE_LICENSE("GPL");
+
+/* Define just one of these.  Feel free to customize as needed */
+#define SAGRAD_1091_1098_EVK_SDIO
+/* #define SAGRAD_1091_1098_EVK_SPI */
+
+#ifdef SAGRAD_1091_1098_EVK_SDIO
+#if 0
+static struct resource cw1200_href_resources[] = {
+	{
+		.start = 215,  /* fix me as appropriate */
+		.end = 215,    /* ditto */
+		.flags = IORESOURCE_IO,
+		.name = "cw1200_wlan_reset",
+	},
+	{
+		.start = 216,  /* fix me as appropriate */
+		.end = 216,    /* ditto */
+		.flags = IORESOURCE_IO,
+		.name = "cw1200_wlan_powerup",
+	},
+	{
+		.start = NOMADIK_GPIO_TO_IRQ(216), /* fix me as appropriate */
+		.end = NOMADIK_GPIO_TO_IRQ(216),   /* ditto */
+		.flags = IORESOURCE_IRQ,
+		.name = "cw1200_wlan_irq",
+	},
+};
+#endif
+
+static int cw1200_power_ctrl(const struct cw1200_platform_data_sdio *pdata,
+			     bool enable)
+{
+	/* Control 3v3 and 1v8 to hardware as appropriate */
+	/* Note this is not needed if it's controlled elsewhere or always on */
+
+	/* May require delay for power to stabilize */
+	return 0;
+}
+
+static int cw1200_clk_ctrl(const struct cw1200_platform_data_sdio *pdata,
+			   bool enable)
+{
+	/* Turn CLK_32K off and on as appropriate. */
+	/* Note this is not needed if it's always on */
+
+	/* May require delay for clock to stabilize */
+	return 0;
+}
+
+static struct cw1200_platform_data_sdio cw1200_platform_data = {
+	.ref_clk = 38400,
+	.have_5ghz = false,
+#if 0
+	.reset = &cw1200_href_resources[0],
+	.powerup = &cw1200_href_resources[1],
+	.irq = &cw1200_href_resources[2],
+#endif
+	.power_ctrl = cw1200_power_ctrl,
+	.clk_ctrl = cw1200_clk_ctrl,
+/*	.macaddr = ??? */
+	.sdd_file = "sdd_sagrad_1091_1098.bin",
+};
+#endif
+
+#ifdef SAGRAD_1091_1098_EVK_SPI
+/* Note that this is an example of integrating into your board support file */
+static struct resource cw1200_href_resources[] = {
+	{
+		.start = GPIO_RF_RESET,
+		.end = GPIO_RF_RESET,
+		.flags = IORESOURCE_IO,
+		.name = "cw1200_wlan_reset",
+	},
+	{
+		.start = GPIO_RF_POWERUP,
+		.end = GPIO_RF_POWERUP,
+		.flags = IORESOURCE_IO,
+		.name = "cw1200_wlan_powerup",
+	},
+};
+
+static int cw1200_power_ctrl(const struct cw1200_platform_data_spi *pdata,
+			     bool enable)
+{
+	/* Control 3v3 and 1v8 to hardware as appropriate */
+	/* Note this is not needed if it's controlled elsewhere or always on */
+
+	/* May require delay for power to stabilize */
+	return 0;
+}
+static int cw1200_clk_ctrl(const struct cw1200_platform_data_spi *pdata,
+			   bool enable)
+{
+	/* Turn CLK_32K off and on as appropriate. */
+	/* Note this is not needed if it's always on */
+
+	/* May require delay for clock to stabilize */
+	return 0;
+}
+
+static struct cw1200_platform_data_spi cw1200_platform_data = {
+	.ref_clk = 38400,
+	.spi_bits_per_word = 16,
+	.reset = &cw1200_href_resources[0],
+	.powerup = &cw1200_href_resources[1],
+	.power_ctrl = cw1200_power_ctrl,
+	.clk_ctrl = cw1200_clk_ctrl,
+/*	.macaddr = ??? */
+	.sdd_file = "sdd_sagrad_1091_1098.bin",
+};
+static struct spi_board_info myboard_spi_devices[] __initdata = {
+	{
+		.modalias = "cw1200_wlan_spi",
+		.max_speed_hz = 10000000, /* 52MHz Max */
+		.bus_num = 0,
+		.irq = WIFI_IRQ,
+		.platform_data = &cw1200_platform_data,
+		.chip_select = 0,
+	},
+};
+#endif
+
+
+const void *cw1200_get_platform_data(void)
+{
+	return &cw1200_platform_data;
+}
+EXPORT_SYMBOL_GPL(cw1200_get_platform_data);
diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
new file mode 100644
index 0000000..f6e2219
--- /dev/null
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -0,0 +1,409 @@
+/*
+ * Mac80211 SDIO driver for ST-Ericsson CW1200 device
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/sdio.h>
+#include <net/mac80211.h>
+
+#include "cw1200.h"
+#include "sbus.h"
+#include <linux/cw1200_platform.h>
+#include "hwio.h"
+
+MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
+MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SDIO driver");
+MODULE_LICENSE("GPL");
+
+#define SDIO_BLOCK_SIZE (512)
+
+struct sbus_priv {
+	struct sdio_func	*func;
+	struct cw1200_common	*core;
+	const struct cw1200_platform_data_sdio *pdata;
+};
+
+#ifndef SDIO_VENDOR_ID_STE
+#define SDIO_VENDOR_ID_STE		0x0020
+#endif
+
+#ifndef SDIO_DEVICE_ID_STE_CW1200
+#define SDIO_DEVICE_ID_STE_CW1200	0x2280
+#endif
+
+static const struct sdio_device_id cw1200_sdio_ids[] = {
+	{ SDIO_DEVICE(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200) },
+	{ /* end: all zeroes */			},
+};
+
+/* sbus_ops implemetation */
+
+static int cw1200_sdio_memcpy_fromio(struct sbus_priv *self,
+				     unsigned int addr,
+				     void *dst, int count)
+{
+	return sdio_memcpy_fromio(self->func, dst, addr, count);
+}
+
+static int cw1200_sdio_memcpy_toio(struct sbus_priv *self,
+				   unsigned int addr,
+				   const void *src, int count)
+{
+	return sdio_memcpy_toio(self->func, addr, (void *)src, count);
+}
+
+static void cw1200_sdio_lock(struct sbus_priv *self)
+{
+	sdio_claim_host(self->func);
+}
+
+static void cw1200_sdio_unlock(struct sbus_priv *self)
+{
+	sdio_release_host(self->func);
+}
+
+static void cw1200_sdio_irq_handler(struct sdio_func *func)
+{
+	struct sbus_priv *self = sdio_get_drvdata(func);
+
+	/* note:  sdio_host already claimed here. */
+	if (self->core)
+		cw1200_irq_handler(self->core);
+}
+
+static irqreturn_t cw1200_gpio_hardirq(int irq, void *dev_id)
+{
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t cw1200_gpio_irq(int irq, void *dev_id)
+{
+	struct sbus_priv *self = dev_id;
+
+	if (self->core) {
+		sdio_claim_host(self->func);
+		cw1200_irq_handler(self->core);
+		sdio_release_host(self->func);
+		return IRQ_HANDLED;
+	} else {
+		return IRQ_NONE;
+	}
+}
+
+static int cw1200_request_irq(struct sbus_priv *self)
+{
+	int ret;
+	const struct resource *irq = self->pdata->irq;
+	u8 cccr;
+
+	cccr = sdio_f0_readb(self->func, SDIO_CCCR_IENx, &ret);
+	if (WARN_ON(ret))
+		goto err;
+
+	/* Master interrupt enable ... */
+	cccr |= BIT(0);
+
+	/* ... for our function */
+	cccr |= BIT(self->func->num);
+
+	sdio_f0_writeb(self->func, cccr, SDIO_CCCR_IENx, &ret);
+	if (WARN_ON(ret))
+		goto err;
+
+	ret = enable_irq_wake(irq->start);
+	if (WARN_ON(ret))
+		goto err;
+
+	/* Request the IRQ */
+	ret =  request_threaded_irq(irq->start, cw1200_gpio_hardirq,
+				    cw1200_gpio_irq,
+				    IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+				    irq->name, self);
+	if (WARN_ON(ret))
+		goto err;
+
+	return 0;
+
+err:
+	return ret;
+}
+
+static int cw1200_sdio_irq_subscribe(struct sbus_priv *self)
+{
+	int ret = 0;
+
+	pr_debug("SW IRQ subscribe\n");
+	sdio_claim_host(self->func);
+	if (self->pdata->irq)
+		ret = cw1200_request_irq(self);
+	else
+		ret = sdio_claim_irq(self->func, cw1200_sdio_irq_handler);
+
+	sdio_release_host(self->func);
+	return ret;
+}
+
+static int cw1200_sdio_irq_unsubscribe(struct sbus_priv *self)
+{
+	int ret = 0;
+
+	pr_debug("SW IRQ unsubscribe\n");
+
+	if (self->pdata->irq) {
+		disable_irq_wake(self->pdata->irq->start);
+		free_irq(self->pdata->irq->start, self);
+	} else {
+		sdio_claim_host(self->func);
+		ret = sdio_release_irq(self->func);
+		sdio_release_host(self->func);
+	}
+	return ret;
+}
+
+static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
+{
+	const struct resource *reset = pdata->reset;
+
+	if (reset) {
+		gpio_set_value(reset->start, 0);
+		msleep(30); /* Min is 2 * CLK32K cycles */
+		gpio_free(reset->start);
+	}
+
+	if (pdata->power_ctrl)
+		pdata->power_ctrl(pdata, false);
+	if (pdata->clk_ctrl)
+		pdata->clk_ctrl(pdata, false);
+
+	return 0;
+}
+
+static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
+{
+	const struct resource *reset = pdata->reset;
+	const struct resource *powerup = pdata->reset;
+
+	/* Ensure I/Os are pulled low */
+	if (reset) {
+		gpio_request(reset->start, reset->name);
+		gpio_direction_output(reset->start, 0);
+	}
+	if (powerup) {
+		gpio_request(powerup->start, powerup->name);
+		gpio_direction_output(powerup->start, 0);
+	}
+	if (reset || powerup)
+		msleep(50); /* Settle time */
+
+	/* Enable 3v3 and 1v8 to hardware */
+	if (pdata->power_ctrl) {
+		if (pdata->power_ctrl(pdata, true)) {
+			pr_err("power_ctrl() failed!\n");
+			return -1;
+		}
+	}
+
+	/* Enable CLK32K */
+	if (pdata->clk_ctrl) {
+		if (pdata->clk_ctrl(pdata, true)) {
+			pr_err("clk_ctrl() failed!\n");
+			return -1;
+		}
+		msleep(10); /* Delay until clock is stable for 2 cycles */
+	}
+
+	/* Enable POWERUP signal */
+	if (powerup) {
+		gpio_set_value(powerup->start, 1);
+		msleep(250); /* or more..? */
+	}
+	/* Enable RSTn signal */
+	if (reset) {
+		gpio_set_value(reset->start, 1);
+		msleep(50); /* Or more..? */
+	}
+	return 0;
+}
+
+static size_t cw1200_sdio_align_size(struct sbus_priv *self, size_t size)
+{
+	if (self->pdata->no_nptb)
+		size = round_up(size, SDIO_BLOCK_SIZE);
+	else
+		size = sdio_align_size(self->func, size);
+
+	return size;
+}
+
+static int cw1200_sdio_pm(struct sbus_priv *self, bool suspend)
+{
+	int ret = 0;
+
+	if (self->pdata->irq)
+		ret = irq_set_irq_wake(self->pdata->irq->start, suspend);
+	return ret;
+}
+
+static struct sbus_ops cw1200_sdio_sbus_ops = {
+	.sbus_memcpy_fromio	= cw1200_sdio_memcpy_fromio,
+	.sbus_memcpy_toio	= cw1200_sdio_memcpy_toio,
+	.lock			= cw1200_sdio_lock,
+	.unlock			= cw1200_sdio_unlock,
+	.align_size		= cw1200_sdio_align_size,
+	.power_mgmt		= cw1200_sdio_pm,
+};
+
+/* Probe Function to be called by SDIO stack when device is discovered */
+static int cw1200_sdio_probe(struct sdio_func *func,
+				       const struct sdio_device_id *id)
+{
+	struct sbus_priv *self;
+	int status;
+
+	pr_info("cw1200_wlan_sdio: Probe called\n");
+
+       /* We are only able to handle the wlan function */
+	if (func->num != 0x01)
+		return -ENODEV;
+
+	self = kzalloc(sizeof(*self), GFP_KERNEL);
+	if (!self) {
+		pr_err("Can't allocate SDIO sbus_priv.\n");
+		return -ENOMEM;
+	}
+
+	func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
+
+	self->pdata = cw1200_get_platform_data();
+	self->func = func;
+	sdio_set_drvdata(func, self);
+	sdio_claim_host(func);
+	sdio_enable_func(func);
+	sdio_release_host(func);
+
+	status = cw1200_sdio_irq_subscribe(self);
+
+	status = cw1200_core_probe(&cw1200_sdio_sbus_ops,
+				   self, &func->dev, &self->core,
+				   self->pdata->ref_clk,
+				   self->pdata->macaddr,
+				   self->pdata->sdd_file,
+				   self->pdata->have_5ghz);
+	if (status) {
+		cw1200_sdio_irq_unsubscribe(self);
+		sdio_claim_host(func);
+		sdio_disable_func(func);
+		sdio_release_host(func);
+		sdio_set_drvdata(func, NULL);
+		kfree(self);
+	}
+
+	return status;
+}
+
+/* Disconnect Function to be called by SDIO stack when
+ * device is disconnected */
+static void cw1200_sdio_disconnect(struct sdio_func *func)
+{
+	struct sbus_priv *self = sdio_get_drvdata(func);
+
+	if (self) {
+		cw1200_sdio_irq_unsubscribe(self);
+		if (self->core) {
+			cw1200_core_release(self->core);
+			self->core = NULL;
+		}
+		sdio_claim_host(func);
+		sdio_disable_func(func);
+		sdio_release_host(func);
+		sdio_set_drvdata(func, NULL);
+		kfree(self);
+	}
+}
+
+static int cw1200_sdio_suspend(struct device *dev)
+{
+	int ret;
+	struct sdio_func *func = dev_to_sdio_func(dev);
+	struct sbus_priv *self = sdio_get_drvdata(func);
+
+	if (!cw1200_can_suspend(self->core))
+		return -EAGAIN;
+
+	/* Notify SDIO that CW1200 will remain powered during suspend */
+	ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+	if (ret)
+		pr_err("Error setting SDIO pm flags: %i\n", ret);
+
+	return ret;
+}
+
+static int cw1200_sdio_resume(struct device *dev)
+{
+	return 0;
+}
+
+static const struct dev_pm_ops cw1200_pm_ops = {
+	.suspend = cw1200_sdio_suspend,
+	.resume = cw1200_sdio_resume,
+};
+
+static struct sdio_driver sdio_driver = {
+	.name		= "cw1200_wlan_sdio",
+	.id_table	= cw1200_sdio_ids,
+	.probe		= cw1200_sdio_probe,
+	.remove		= cw1200_sdio_disconnect,
+	.drv = {
+		.pm = &cw1200_pm_ops,
+	}
+};
+
+/* Init Module function -> Called by insmod */
+static int __init cw1200_sdio_init(void)
+{
+	const struct cw1200_platform_data_sdio *pdata;
+	int ret;
+
+	pdata = cw1200_get_platform_data();
+
+	if (cw1200_sdio_on(pdata)) {
+		ret = -1;
+		goto err;
+	}
+
+	ret = sdio_register_driver(&sdio_driver);
+	if (ret)
+		goto err;
+
+	return 0;
+
+err:
+	cw1200_sdio_off(pdata);
+	return ret;
+}
+
+/* Called at Driver Unloading */
+static void __exit cw1200_sdio_exit(void)
+{
+	const struct cw1200_platform_data_sdio *pdata;
+	pdata = cw1200_get_platform_data();
+	sdio_unregister_driver(&sdio_driver);
+	cw1200_sdio_off(pdata);
+}
+
+
+module_init(cw1200_sdio_init);
+module_exit(cw1200_sdio_exit);
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
new file mode 100644
index 0000000..04af685
--- /dev/null
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -0,0 +1,480 @@
+/*
+ * Mac80211 SPI driver for ST-Ericsson CW1200 device
+ *
+ * Copyright (c) 2011, Sagrad Inc.
+ * Author:  Solomon Peachy <speachy@sagrad.com>
+ *
+ * Based on cw1200_sdio.c
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <net/mac80211.h>
+
+#include <linux/spi/spi.h>
+#include <linux/device.h>
+
+#include "cw1200.h"
+#include "sbus.h"
+#include <linux/cw1200_platform.h>
+#include "hwio.h"
+
+MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
+MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SPI driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:cw1200_wlan_spi");
+
+/* #define SPI_DEBUG */
+
+struct sbus_priv {
+	struct spi_device	*func;
+	struct cw1200_common	*core;
+	const struct cw1200_platform_data_spi *pdata;
+	spinlock_t		lock; /* Serialize all bus operations */
+	int claimed;
+};
+
+#define SDIO_TO_SPI_ADDR(addr) ((addr & 0x1f)>>2)
+#define SET_WRITE 0x7FFF /* usage: and operation */
+#define SET_READ 0x8000  /* usage: or operation */
+
+/*
+   Notes on byte ordering:
+   LE:  B0 B1 B2 B3
+   BE:  B3 B2 B1 B0
+
+   Hardware expects 32-bit data to be written as 16-bit BE words:
+
+   B1 B0 B3 B2
+
+*/
+
+static int cw1200_spi_memcpy_fromio(struct sbus_priv *self,
+				     unsigned int addr,
+				     void *dst, int count)
+{
+	int ret, i;
+	uint16_t regaddr;
+	struct spi_message      m;
+
+	struct spi_transfer     t_addr = {
+		.tx_buf         = &regaddr,
+		.len            = sizeof(regaddr),
+	};
+	struct spi_transfer     t_msg = {
+		.rx_buf         = dst,
+		.len            = count,
+	};
+
+	regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
+	regaddr |= SET_READ;
+	regaddr |= (count>>1);
+	regaddr = cpu_to_le16(regaddr);
+
+#ifdef SPI_DEBUG
+	pr_info("READ : %04d from 0x%02x (%04x)\n", count, addr,
+		le16_to_cpu(regaddr));
+#endif
+
+#if defined(__LITTLE_ENDIAN)
+	/* We have to byteswap if the SPI bus is limited to 8b operation */
+	if (self->func->bits_per_word == 8)
+#endif
+		regaddr = swab16(regaddr);
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t_addr, &m);
+	spi_message_add_tail(&t_msg, &m);
+	ret = spi_sync(self->func, &m);
+
+#ifdef SPI_DEBUG
+	pr_info("READ : ");
+	for (i = 0; i < t_addr.len; i++)
+		printk("%02x ", ((u8 *)t_addr.tx_buf)[i]);
+	printk(" : ");
+	for (i = 0; i < t_msg.len; i++)
+		printk("%02x ", ((u8 *)t_msg.rx_buf)[i]);
+	printk("\n");
+#endif
+
+#if defined(__LITTLE_ENDIAN)
+	/* We have to byteswap if the SPI bus is limited to 8b operation */
+	if (self->func->bits_per_word == 8)
+#endif
+	{
+		uint16_t *buf = (uint16_t *)dst;
+		for (i = 0; i < ((count + 1) >> 1); i++)
+			buf[i] = swab16(buf[i]);
+	}
+
+	return ret;
+}
+
+static int cw1200_spi_memcpy_toio(struct sbus_priv *self,
+				   unsigned int addr,
+				   const void *src, int count)
+{
+	int rval, i;
+	uint16_t regaddr;
+	struct spi_transfer     t_addr = {
+		.tx_buf         = &regaddr,
+		.len            = sizeof(regaddr),
+	};
+	struct spi_transfer     t_msg = {
+		.tx_buf         = src,
+		.len            = count,
+	};
+	struct spi_message      m;
+
+	regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
+	regaddr &= SET_WRITE;
+	regaddr |= (count>>1);
+	regaddr = cpu_to_le16(regaddr);
+
+#ifdef SPI_DEBUG
+	pr_info("WRITE: %04d  to  0x%02x (%04x)\n", count, addr,
+		le16_to_cpu(regaddr));
+#endif
+
+#if defined(__LITTLE_ENDIAN)
+	/* We have to byteswap if the SPI bus is limited to 8b operation */
+	if (self->func->bits_per_word == 8)
+#endif
+	{
+		uint16_t *buf = (uint16_t *)src;
+		regaddr = swab16(regaddr);
+		for (i = 0; i < ((count + 1) >> 1); i++)
+			buf[i] = swab16(buf[i]);
+	}
+
+#ifdef SPI_DEBUG
+	pr_info("WRITE: ");
+	for (i = 0; i < t_addr.len; i++)
+		printk("%02x ", ((u8 *)t_addr.tx_buf)[i]);
+	printk(" : ");
+	for (i = 0; i < t_msg.len; i++)
+		printk("%02x ", ((u8 *)t_msg.tx_buf)[i]);
+	printk("\n");
+#endif
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t_addr, &m);
+	spi_message_add_tail(&t_msg, &m);
+	rval = spi_sync(self->func, &m);
+
+#ifdef SPI_DEBUG
+	pr_info("WROTE: %d\n", m.actual_length);
+#endif
+
+#if defined(__LITTLE_ENDIAN)
+	/* We have to byteswap if the SPI bus is limited to 8b operation */
+	if (self->func->bits_per_word == 8)
+#endif
+	{
+		uint16_t *buf = (uint16_t *)src;
+		for (i = 0; i < ((count + 1) >> 1); i++)
+			buf[i] = swab16(buf[i]);
+	}
+	return rval;
+}
+
+static void cw1200_spi_lock(struct sbus_priv *self)
+{
+	unsigned long flags;
+
+	might_sleep();
+
+	spin_lock_irqsave(&self->lock, flags);
+	while (1) {
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		if (!self->claimed)
+			break;
+		spin_unlock_irqrestore(&self->lock, flags);
+		schedule();
+		spin_lock_irqsave(&self->lock, flags);
+	}
+	set_current_state(TASK_RUNNING);
+	self->claimed = 1;
+	spin_unlock_irqrestore(&self->lock, flags);
+
+	return;
+}
+
+static void cw1200_spi_unlock(struct sbus_priv *self)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&self->lock, flags);
+	self->claimed = 0;
+	spin_unlock_irqrestore(&self->lock, flags);
+	return;
+}
+
+static irqreturn_t cw1200_spi_irq_handler(int irq, void *dev_id)
+{
+	struct sbus_priv *self = dev_id;
+
+	if (self->core) {
+		cw1200_irq_handler(self->core);
+		return IRQ_HANDLED;
+	} else {
+		return IRQ_NONE;
+	}
+}
+
+static int cw1200_spi_irq_subscribe(struct sbus_priv *self)
+{
+	int ret;
+
+	pr_debug("SW IRQ subscribe\n");
+
+	ret = request_any_context_irq(self->func->irq, cw1200_spi_irq_handler,
+				      IRQF_TRIGGER_HIGH,
+				      "cw1200_wlan_irq", self);
+	if (WARN_ON(ret < 0))
+		goto exit;
+
+	ret = enable_irq_wake(self->func->irq);
+	if (WARN_ON(ret))
+		goto free_irq;
+
+	return 0;
+
+free_irq:
+	free_irq(self->func->irq, self);
+exit:
+	return ret;
+}
+
+static int cw1200_spi_irq_unsubscribe(struct sbus_priv *self)
+{
+	int ret = 0;
+
+	pr_debug("SW IRQ unsubscribe\n");
+	disable_irq_wake(self->func->irq);
+	free_irq(self->func->irq, self);
+
+	return ret;
+}
+
+static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
+{
+	const struct resource *reset = pdata->reset;
+
+	if (reset) {
+		gpio_set_value(reset->start, 0);
+		msleep(30); /* Min is 2 * CLK32K cycles */
+		gpio_free(reset->start);
+	}
+
+	if (pdata->power_ctrl)
+		pdata->power_ctrl(pdata, false);
+	if (pdata->clk_ctrl)
+		pdata->clk_ctrl(pdata, false);
+
+	return 0;
+}
+
+static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
+{
+	const struct resource *reset = pdata->reset;
+	const struct resource *powerup = pdata->reset;
+
+	/* Ensure I/Os are pulled low */
+	if (reset) {
+		gpio_request(reset->start, reset->name);
+		gpio_direction_output(reset->start, 0);
+	}
+	if (powerup) {
+		gpio_request(powerup->start, powerup->name);
+		gpio_direction_output(powerup->start, 0);
+	}
+	if (reset || powerup)
+		msleep(10); /* Settle time? */
+
+	/* Enable 3v3 and 1v8 to hardware */
+	if (pdata->power_ctrl) {
+		if (pdata->power_ctrl(pdata, true)) {
+			pr_err("power_ctrl() failed!\n");
+			return -1;
+		}
+	}
+
+	/* Enable CLK32K */
+	if (pdata->clk_ctrl) {
+		if (pdata->clk_ctrl(pdata, true)) {
+			pr_err("clk_ctrl() failed!\n");
+			return -1;
+		}
+		msleep(10); /* Delay until clock is stable for 2 cycles */
+	}
+
+	/* Enable POWERUP signal */
+	if (powerup) {
+		gpio_set_value(powerup->start, 1);
+		msleep(250); /* or more..? */
+	}
+	/* Enable RSTn signal */
+	if (reset) {
+		gpio_set_value(reset->start, 1);
+		msleep(50); /* Or more..? */
+	}
+	return 0;
+}
+
+static size_t cw1200_spi_align_size(struct sbus_priv *self, size_t size)
+{
+	return size & 1 ? size + 1 : size;
+}
+
+static int cw1200_spi_pm(struct sbus_priv *self, bool suspend)
+{
+	return irq_set_irq_wake(self->func->irq, suspend);
+}
+
+static struct sbus_ops cw1200_spi_sbus_ops = {
+	.sbus_memcpy_fromio	= cw1200_spi_memcpy_fromio,
+	.sbus_memcpy_toio	= cw1200_spi_memcpy_toio,
+	.lock			= cw1200_spi_lock,
+	.unlock			= cw1200_spi_unlock,
+	.align_size		= cw1200_spi_align_size,
+	.power_mgmt		= cw1200_spi_pm,
+};
+
+/* Probe Function to be called by SPI stack when device is discovered */
+static int cw1200_spi_probe(struct spi_device *func)
+{
+	const struct cw1200_platform_data_spi *plat_data =
+		func->dev.platform_data;
+	struct sbus_priv *self;
+	int status;
+
+	/* Sanity check speed */
+	if (func->max_speed_hz > 52000000)
+		func->max_speed_hz = 52000000;
+	if (func->max_speed_hz < 1000000)
+		func->max_speed_hz = 1000000;
+
+	/* Fix up transfer size */
+	if (plat_data->spi_bits_per_word)
+		func->bits_per_word = plat_data->spi_bits_per_word;
+	if (!func->bits_per_word)
+		func->bits_per_word = 16;
+
+	/* And finally.. */
+	func->mode = SPI_MODE_0;
+
+	pr_info("cw1200_wlan_spi: Probe called (CS %d M %d BPW %d CLK %d)\n",
+		func->chip_select, func->mode, func->bits_per_word,
+		func->max_speed_hz);
+
+	if (cw1200_spi_on(plat_data)) {
+		pr_err("spi_on() failed!\n");
+		return -1;
+	}
+
+	if (spi_setup(func)) {
+		pr_err("spi_setup() failed!\n");
+		return -1;
+	}
+
+	self = kzalloc(sizeof(*self), GFP_KERNEL);
+	if (!self) {
+		pr_err("Can't allocate SPI sbus_priv.");
+		return -ENOMEM;
+	}
+
+	self->pdata = plat_data;
+	self->func = func;
+	spin_lock_init(&self->lock);
+
+	spi_set_drvdata(func, self);
+
+	status = cw1200_spi_irq_subscribe(self);
+
+	status = cw1200_core_probe(&cw1200_spi_sbus_ops,
+				   self, &func->dev, &self->core,
+				   self->pdata->ref_clk,
+				   self->pdata->macaddr,
+				   self->pdata->sdd_file,
+				   self->pdata->have_5ghz);
+
+	if (status) {
+		cw1200_spi_irq_unsubscribe(self);
+		cw1200_spi_off(plat_data);
+		kfree(self);
+	}
+
+	return status;
+}
+
+/* Disconnect Function to be called by SPI stack when device is disconnected */
+static int cw1200_spi_disconnect(struct spi_device *func)
+{
+	struct sbus_priv *self = spi_get_drvdata(func);
+
+	if (self) {
+		cw1200_spi_irq_unsubscribe(self);
+		if (self->core) {
+			cw1200_core_release(self->core);
+			self->core = NULL;
+		}
+		kfree(self);
+	}
+	cw1200_spi_off(func->dev.platform_data);
+
+	return 0;
+}
+
+static int cw1200_spi_suspend(struct device *dev, pm_message_t state)
+{
+	struct sbus_priv *self = spi_get_drvdata(to_spi_device(dev));
+
+	if (!cw1200_can_suspend(self->core))
+		return -EAGAIN;
+
+	/* XXX notify host that we have to keep CW1200 powered on? */
+	return 0;
+}
+
+static int cw1200_spi_resume(struct device *dev)
+{
+	return 0;
+}
+
+static struct spi_driver spi_driver = {
+	.probe		= cw1200_spi_probe,
+	.remove		= cw1200_spi_disconnect,
+	.driver = {
+		.name		= "cw1200_wlan_spi",
+		.bus            = &spi_bus_type,
+		.owner          = THIS_MODULE,
+		.suspend        = cw1200_spi_suspend,
+		.resume         = cw1200_spi_resume,
+	},
+};
+
+/* Init Module function -> Called by insmod */
+static int __init cw1200_spi_init(void)
+{
+	return spi_register_driver(&spi_driver);
+}
+
+/* Called at Driver Unloading */
+static void __exit cw1200_spi_exit(void)
+{
+	spi_unregister_driver(&spi_driver);
+}
+
+module_init(cw1200_spi_init);
+module_exit(cw1200_spi_exit);
diff --git a/drivers/net/wireless/cw1200/debug.c b/drivers/net/wireless/cw1200/debug.c
new file mode 100644
index 0000000..b815181
--- /dev/null
+++ b/drivers/net/wireless/cw1200/debug.c
@@ -0,0 +1,664 @@
+/*
+ * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
+ * DebugFS code
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include "cw1200.h"
+#include "debug.h"
+#include "fwio.h"
+
+/* join_status */
+static const char * const cw1200_debug_join_status[] = {
+	"passive",
+	"monitor",
+	"station (joining)",
+	"station (not authenticated yet)",
+	"station",
+	"adhoc",
+	"access point",
+};
+
+/* WSM_JOIN_PREAMBLE_... */
+static const char * const cw1200_debug_preamble[] = {
+	"long",
+	"short",
+	"long on 1 and 2 Mbps",
+};
+
+
+static const char * const cw1200_debug_link_id[] = {
+	"OFF",
+	"REQ",
+	"SOFT",
+	"HARD",
+};
+
+static const char *cw1200_debug_mode(int mode)
+{
+	switch (mode) {
+	case NL80211_IFTYPE_UNSPECIFIED:
+		return "unspecified";
+	case NL80211_IFTYPE_MONITOR:
+		return "monitor";
+	case NL80211_IFTYPE_STATION:
+		return "station";
+	case NL80211_IFTYPE_ADHOC:
+		return "adhoc";
+	case NL80211_IFTYPE_MESH_POINT:
+		return "mesh point";
+	case NL80211_IFTYPE_AP:
+		return "access point";
+	case NL80211_IFTYPE_P2P_CLIENT:
+		return "p2p client";
+	case NL80211_IFTYPE_P2P_GO:
+		return "p2p go";
+	default:
+		return "unsupported";
+	}
+}
+
+static void cw1200_queue_status_show(struct seq_file *seq,
+				     struct cw1200_queue *q)
+{
+	int i;
+	seq_printf(seq, "Queue       %d:\n", q->queue_id);
+	seq_printf(seq, "  capacity: %zu\n", q->capacity);
+	seq_printf(seq, "  queued:   %zu\n", q->num_queued);
+	seq_printf(seq, "  pending:  %zu\n", q->num_pending);
+	seq_printf(seq, "  sent:     %zu\n", q->num_sent);
+	seq_printf(seq, "  locked:   %s\n", q->tx_locked_cnt ? "yes" : "no");
+	seq_printf(seq, "  overfull: %s\n", q->overfull ? "yes" : "no");
+	seq_puts(seq,   "  link map: 0-> ");
+	for (i = 0; i < q->stats->map_capacity; ++i)
+		seq_printf(seq, "%.2d ", q->link_map_cache[i]);
+	seq_printf(seq, "<-%zu\n", q->stats->map_capacity);
+}
+
+static void cw1200_debug_print_map(struct seq_file *seq,
+				   struct cw1200_common *priv,
+				   const char *label,
+				   u32 map)
+{
+	int i;
+	seq_printf(seq, "%s0-> ", label);
+	for (i = 0; i < priv->tx_queue_stats.map_capacity; ++i)
+		seq_printf(seq, "%s ", (map & BIT(i)) ? "**" : "..");
+	seq_printf(seq, "<-%zu\n", priv->tx_queue_stats.map_capacity - 1);
+}
+
+static int cw1200_status_show(struct seq_file *seq, void *v)
+{
+	int i;
+	struct list_head *item;
+	struct cw1200_common *priv = seq->private;
+	struct cw1200_debug_priv *d = priv->debug;
+
+	seq_puts(seq,   "CW1200 Wireless LAN driver status\n");
+	seq_printf(seq, "Hardware:   %d.%d\n",
+		   priv->wsm_caps.hw_id,
+		   priv->wsm_caps.hw_subid);
+	seq_printf(seq, "Firmware:   %s %d.%d\n",
+		   cw1200_fw_types[priv->wsm_caps.fw_type],
+		   priv->wsm_caps.fw_ver,
+		   priv->wsm_caps.fw_build);
+	seq_printf(seq, "FW API:     %d\n",
+		   priv->wsm_caps.fw_api);
+	seq_printf(seq, "FW caps:    0x%.4X\n",
+		   priv->wsm_caps.fw_cap);
+	seq_printf(seq, "FW label:  '%s'\n",
+		   priv->wsm_caps.fw_label);
+	seq_printf(seq, "Mode:       %s%s\n",
+		   cw1200_debug_mode(priv->mode),
+		   priv->listening ? " (listening)" : "");
+	seq_printf(seq, "Join state: %s\n",
+		   cw1200_debug_join_status[priv->join_status]);
+	if (priv->channel)
+		seq_printf(seq, "Channel:    %d%s\n",
+			   priv->channel->hw_value,
+			   priv->channel_switch_in_progress ?
+			   " (switching)" : "");
+	if (priv->rx_filter.promiscuous)
+		seq_puts(seq,   "Filter:     promisc\n");
+	else if (priv->rx_filter.fcs)
+		seq_puts(seq,   "Filter:     fcs\n");
+	if (priv->rx_filter.bssid)
+		seq_puts(seq,   "Filter:     bssid\n");
+	if (!priv->disable_beacon_filter)
+		seq_puts(seq,   "Filter:     beacons\n");
+
+	if (priv->enable_beacon ||
+	    priv->mode == NL80211_IFTYPE_AP ||
+	    priv->mode == NL80211_IFTYPE_ADHOC ||
+	    priv->mode == NL80211_IFTYPE_MESH_POINT ||
+	    priv->mode == NL80211_IFTYPE_P2P_GO)
+		seq_printf(seq, "Beaconing:  %s\n",
+			   priv->enable_beacon ?
+			   "enabled" : "disabled");
+
+	for (i = 0; i < 4; ++i)
+		seq_printf(seq, "EDCA(%d):    %d, %d, %d, %d, %d\n", i,
+			   priv->edca.params[i].cwmin,
+			   priv->edca.params[i].cwmax,
+			   priv->edca.params[i].aifns,
+			   priv->edca.params[i].txop_limit,
+			   priv->edca.params[i].max_rx_lifetime);
+
+	if (priv->join_status == CW1200_JOIN_STATUS_STA) {
+		static const char *pm_mode = "unknown";
+		switch (priv->powersave_mode.mode) {
+		case WSM_PSM_ACTIVE:
+			pm_mode = "off";
+			break;
+		case WSM_PSM_PS:
+			pm_mode = "on";
+			break;
+		case WSM_PSM_FAST_PS:
+			pm_mode = "dynamic";
+			break;
+		}
+		seq_printf(seq, "Preamble:   %s\n",
+			   cw1200_debug_preamble[priv->association_mode.preamble]);
+		seq_printf(seq, "AMPDU spcn: %d\n",
+			   priv->association_mode.mpdu_start_spacing);
+		seq_printf(seq, "Basic rate: 0x%.8X\n",
+			   le32_to_cpu(priv->association_mode.basic_rate_set));
+		seq_printf(seq, "Bss lost:   %d beacons\n",
+			   priv->bss_params.beacon_lost_count);
+		seq_printf(seq, "AID:        %d\n",
+			   priv->bss_params.aid);
+		seq_printf(seq, "Rates:      0x%.8X\n",
+			   priv->bss_params.operational_rate_set);
+		seq_printf(seq, "Powersave:  %s\n", pm_mode);
+	}
+	seq_printf(seq, "HT:         %s\n",
+		   cw1200_is_ht(&priv->ht_info) ? "on" : "off");
+	if (cw1200_is_ht(&priv->ht_info)) {
+		seq_printf(seq, "Greenfield: %s\n",
+			   cw1200_ht_greenfield(&priv->ht_info) ? "yes" : "no");
+		seq_printf(seq, "AMPDU dens: %d\n",
+			   cw1200_ht_ampdu_density(&priv->ht_info));
+	}
+	seq_printf(seq, "RSSI thold: %d\n",
+		   priv->cqm_rssi_thold);
+	seq_printf(seq, "RSSI hyst:  %d\n",
+		   priv->cqm_rssi_hyst);
+	seq_printf(seq, "Long retr:  %d\n",
+		   priv->long_frame_max_tx_count);
+	seq_printf(seq, "Short retr: %d\n",
+		   priv->short_frame_max_tx_count);
+	spin_lock_bh(&priv->tx_policy_cache.lock);
+	i = 0;
+	list_for_each(item, &priv->tx_policy_cache.used)
+		++i;
+	spin_unlock_bh(&priv->tx_policy_cache.lock);
+	seq_printf(seq, "RC in use:  %d\n", i);
+
+	seq_puts(seq, "\n");
+	for (i = 0; i < 4; ++i) {
+		cw1200_queue_status_show(seq, &priv->tx_queue[i]);
+		seq_puts(seq, "\n");
+	}
+
+	cw1200_debug_print_map(seq, priv, "Link map:   ",
+			       priv->link_id_map);
+	cw1200_debug_print_map(seq, priv, "Asleep map: ",
+			       priv->sta_asleep_mask);
+	cw1200_debug_print_map(seq, priv, "PSPOLL map: ",
+			       priv->pspoll_mask);
+
+	seq_puts(seq, "\n");
+
+	for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+		if (priv->link_id_db[i].status) {
+			seq_printf(seq, "Link %d:     %s, %pM\n",
+				   i + 1,
+				   cw1200_debug_link_id[priv->link_id_db[i].status],
+				   priv->link_id_db[i].mac);
+		}
+	}
+
+	seq_puts(seq, "\n");
+
+	seq_printf(seq, "BH status:  %s\n",
+		   atomic_read(&priv->bh_term) ? "terminated" : "alive");
+	seq_printf(seq, "Pending RX: %d\n",
+		   atomic_read(&priv->bh_rx));
+	seq_printf(seq, "Pending TX: %d\n",
+		   atomic_read(&priv->bh_tx));
+	if (priv->bh_error)
+		seq_printf(seq, "BH errcode: %d\n",
+			   priv->bh_error);
+	seq_printf(seq, "TX bufs:    %d x %d bytes\n",
+		   priv->wsm_caps.input_buffers,
+		   priv->wsm_caps.input_buffer_size);
+	seq_printf(seq, "Used bufs:  %d\n",
+		   priv->hw_bufs_used);
+	seq_printf(seq, "Powermgmt:  %s\n",
+		   priv->powersave_enabled ? "on" : "off");
+	seq_printf(seq, "Device:     %s\n",
+		   priv->device_can_sleep ? "asleep" : "awake");
+
+	spin_lock(&priv->wsm_cmd.lock);
+	seq_printf(seq, "WSM status: %s\n",
+		   priv->wsm_cmd.done ? "idle" : "active");
+	seq_printf(seq, "WSM cmd:    0x%.4X (%td bytes)\n",
+		   priv->wsm_cmd.cmd, priv->wsm_cmd.len);
+	seq_printf(seq, "WSM retval: %d\n",
+		   priv->wsm_cmd.ret);
+	spin_unlock(&priv->wsm_cmd.lock);
+
+	seq_printf(seq, "Datapath:   %s\n",
+		   atomic_read(&priv->tx_lock) ? "locked" : "unlocked");
+	if (atomic_read(&priv->tx_lock))
+		seq_printf(seq, "TXlock cnt: %d\n",
+			   atomic_read(&priv->tx_lock));
+
+	seq_printf(seq, "TXed:       %d\n",
+		   d->tx);
+	seq_printf(seq, "AGG TXed:   %d\n",
+		   d->tx_agg);
+	seq_printf(seq, "MULTI TXed: %d (%d)\n",
+		   d->tx_multi, d->tx_multi_frames);
+	seq_printf(seq, "RXed:       %d\n",
+		   d->rx);
+	seq_printf(seq, "AGG RXed:   %d\n",
+		   d->rx_agg);
+	seq_printf(seq, "TX miss:    %d\n",
+		   d->tx_cache_miss);
+	seq_printf(seq, "TX align:   %d\n",
+		   d->tx_align);
+	seq_printf(seq, "TX burst:   %d\n",
+		   d->tx_burst);
+	seq_printf(seq, "TX TTL:     %d\n",
+		   d->tx_ttl);
+	seq_printf(seq, "Scan:       %s\n",
+		   atomic_read(&priv->scan.in_progress) ? "active" : "idle");
+
+	return 0;
+}
+
+static int cw1200_status_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, &cw1200_status_show,
+		inode->i_private);
+}
+
+static const struct file_operations fops_status = {
+	.open = cw1200_status_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.owner = THIS_MODULE,
+};
+
+static int cw1200_counters_show(struct seq_file *seq, void *v)
+{
+	int ret;
+	struct cw1200_common *priv = seq->private;
+	struct wsm_mib_counters_table counters;
+
+	ret = wsm_get_counters_table(priv, &counters);
+	if (ret)
+		return ret;
+
+#define PUT_COUNTER(tab, name) \
+	seq_printf(seq, "%s:" tab "%d\n", #name, \
+		__le32_to_cpu(counters.name))
+
+	PUT_COUNTER("\t\t", plcp_errors);
+	PUT_COUNTER("\t\t", fcs_errors);
+	PUT_COUNTER("\t\t", tx_packets);
+	PUT_COUNTER("\t\t", rx_packets);
+	PUT_COUNTER("\t\t", rx_packet_errors);
+	PUT_COUNTER("\t",   rx_decryption_failures);
+	PUT_COUNTER("\t\t", rx_mic_failures);
+	PUT_COUNTER("\t",   rx_no_key_failures);
+	PUT_COUNTER("\t",   tx_multicast_frames);
+	PUT_COUNTER("\t",   tx_frames_success);
+	PUT_COUNTER("\t",   tx_frame_failures);
+	PUT_COUNTER("\t",   tx_frames_retried);
+	PUT_COUNTER("\t",   tx_frames_multi_retried);
+	PUT_COUNTER("\t",   rx_frame_duplicates);
+	PUT_COUNTER("\t\t", rts_success);
+	PUT_COUNTER("\t\t", rts_failures);
+	PUT_COUNTER("\t\t", ack_failures);
+	PUT_COUNTER("\t",   rx_multicast_frames);
+	PUT_COUNTER("\t",   rx_frames_success);
+	PUT_COUNTER("\t",   rx_cmac_icv_errors);
+	PUT_COUNTER("\t\t", rx_cmac_replays);
+	PUT_COUNTER("\t",   rx_mgmt_ccmp_replays);
+
+#undef PUT_COUNTER
+
+	return 0;
+}
+
+static int cw1200_counters_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, &cw1200_counters_show,
+		inode->i_private);
+}
+
+static const struct file_operations fops_counters = {
+	.open = cw1200_counters_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.owner = THIS_MODULE,
+};
+
+static int cw1200_generic_open(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+	return 0;
+}
+
+#ifdef CONFIG_CW1200_ETF
+static int cw1200_etf_out_show(struct seq_file *seq, void *v)
+{
+	struct cw1200_common *priv = seq->private;
+	struct sk_buff *skb;
+	u32 len = 0;
+
+	skb = skb_dequeue(&priv->etf_q);
+
+	if (skb)
+		len = skb->len;
+
+	seq_write(seq, &len, sizeof(len));
+
+	if (skb) {
+		seq_write(seq, skb->data, len);
+		kfree_skb(skb);
+	}
+
+	return 0;
+}
+
+static int cw1200_etf_out_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, &cw1200_etf_out_show,
+			   inode->i_private);
+}
+
+static const struct file_operations fops_etf_out = {
+	.open = cw1200_etf_out_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+	.owner = THIS_MODULE,
+};
+
+struct etf_req_msg;
+static int etf_request(struct cw1200_common *priv,
+		       struct etf_req_msg *msg, u32 len);
+
+#define MAX_RX_SZE 2600
+
+struct etf_in_state {
+	struct cw1200_common *priv;
+	u32 total_len;
+	u8 buf[MAX_RX_SZE];
+	u32 written;
+};
+
+static int cw1200_etf_in_open(struct inode *inode, struct file *file)
+{
+	struct etf_in_state *etf = kmalloc(sizeof(struct etf_in_state),
+					   GFP_KERNEL);
+
+	if (!etf)
+		return -ENOMEM;
+
+	etf->written = 0;
+	etf->total_len = 0;
+	etf->priv = inode->i_private;
+
+	file->private_data = etf;
+
+	return 0;
+}
+
+static int cw1200_etf_in_release(struct inode *inode, struct file *file)
+{
+	kfree(file->private_data);
+	return 0;
+}
+
+static ssize_t cw1200_etf_in_write(struct file *file,
+	const char __user *user_buf, size_t count, loff_t *ppos)
+{
+	struct etf_in_state *etf = file->private_data;
+
+	ssize_t written = 0;
+
+	if (!etf->total_len) {
+		if (count < sizeof(etf->total_len)) {
+			pr_err("count < sizeof(total_len)\n");
+			return -EINVAL;
+		}
+
+		if (copy_from_user(&etf->total_len, user_buf,
+				   sizeof(etf->total_len))) {
+			pr_err("copy_from_user (len) failed\n");
+			return -EFAULT;
+		}
+
+		written += sizeof(etf->total_len);
+		count -= sizeof(etf->total_len);
+	}
+
+	if (!count)
+		goto done;
+
+	if (copy_from_user(etf->buf + etf->written, user_buf + written,
+			   count)) {
+		pr_err("copy_from_user (payload %zu) failed\n", count);
+		return -EFAULT;
+	}
+
+	written += count;
+	etf->written += count;
+
+	if (etf->written >= etf->total_len) {
+		if (etf_request(etf->priv, (struct etf_req_msg *)etf->buf,
+				etf->total_len)) {
+			pr_err("etf_request failed\n");
+			return -EIO;
+		}
+	}
+
+done:
+	return written;
+}
+
+static const struct file_operations fops_etf_in = {
+	.open = cw1200_etf_in_open,
+	.release = cw1200_etf_in_release,
+	.write = cw1200_etf_in_write,
+	.llseek = default_llseek,
+	.owner = THIS_MODULE,
+};
+#endif /* CONFIG_CW1200_ETF */
+
+static ssize_t cw1200_wsm_dumps(struct file *file,
+	const char __user *user_buf, size_t count, loff_t *ppos)
+{
+	struct cw1200_common *priv = file->private_data;
+	char buf[1];
+
+	if (!count)
+		return -EINVAL;
+	if (copy_from_user(buf, user_buf, 1))
+		return -EFAULT;
+
+	if (buf[0] == '1')
+		priv->wsm_enable_wsm_dumps = 1;
+	else
+		priv->wsm_enable_wsm_dumps = 0;
+
+	return count;
+}
+
+static const struct file_operations fops_wsm_dumps = {
+	.open = cw1200_generic_open,
+	.write = cw1200_wsm_dumps,
+	.llseek = default_llseek,
+};
+
+int cw1200_debug_init(struct cw1200_common *priv)
+{
+	int ret = -ENOMEM;
+	struct cw1200_debug_priv *d = kzalloc(sizeof(struct cw1200_debug_priv),
+			GFP_KERNEL);
+	priv->debug = d;
+	if (!d)
+		return ret;
+
+	d->debugfs_phy = debugfs_create_dir("cw1200",
+					    priv->hw->wiphy->debugfsdir);
+	if (!d->debugfs_phy)
+		goto err;
+
+	if (!debugfs_create_file("status", S_IRUSR, d->debugfs_phy,
+				 priv, &fops_status))
+		goto err;
+
+	if (!debugfs_create_file("counters", S_IRUSR, d->debugfs_phy,
+				 priv, &fops_counters))
+		goto err;
+
+#ifdef CONFIG_CW1200_ETF
+	if (etf_mode) {
+		skb_queue_head_init(&priv->etf_q);
+
+		if (!debugfs_create_file("etf_out", S_IRUSR, d->debugfs_phy,
+					 priv, &fops_etf_out))
+			goto err;
+		if (!debugfs_create_file("etf_in", S_IWUSR, d->debugfs_phy,
+					 priv, &fops_etf_in))
+			goto err;
+	}
+#endif /* CONFIG_CW1200_ETF */
+
+	if (!debugfs_create_file("wsm_dumps", S_IWUSR, d->debugfs_phy,
+				 priv, &fops_wsm_dumps))
+		goto err;
+
+	ret = cw1200_itp_init(priv);
+	if (ret)
+		goto err;
+
+	return 0;
+
+err:
+	priv->debug = NULL;
+	debugfs_remove_recursive(d->debugfs_phy);
+	kfree(d);
+	return ret;
+}
+
+void cw1200_debug_release(struct cw1200_common *priv)
+{
+	struct cw1200_debug_priv *d = priv->debug;
+	if (d) {
+		cw1200_itp_release(priv);
+		priv->debug = NULL;
+		kfree(d);
+	}
+}
+
+#ifdef CONFIG_CW1200_ETF
+struct cw1200_sdd {
+	u8 id;
+	u8 len;
+	u8 data[];
+};
+
+struct etf_req_msg {
+	u32 id;
+	u32 len;
+	u8 data[];
+};
+
+static int parse_sdd_file(struct cw1200_common *priv, u8 *data, u32 length)
+{
+	struct cw1200_sdd *ie;
+
+	while (length > 0) {
+		ie = (struct cw1200_sdd *)data;
+		if (ie->id == SDD_REFERENCE_FREQUENCY_ELT_ID) {
+			priv->hw_refclk = cpu_to_le16(*((u16 *)ie->data));
+			pr_info("Using Reference clock frequency %d KHz\n",
+				priv->hw_refclk);
+			break;
+		}
+
+		length -= ie->len + sizeof(*ie);
+		data += ie->len + sizeof(*ie);
+	}
+	return 0;
+}
+
+char *etf_firmware;
+
+#define ST90TDS_START_ADAPTER           0x09 /* Loads firmware too */
+#define ST90TDS_STOP_ADAPTER            0x0A
+#define ST90TDS_CONFIG_ADAPTER          0x0E /* Send configuration params */
+#define ST90TDS_SBUS_READ               0x13
+#define ST90TDS_SBUS_WRITE              0x14
+#define ST90TDS_GET_DEVICE_OPTION       0x19
+#define ST90TDS_SET_DEVICE_OPTION       0x1A
+#define ST90TDS_SEND_SDD                0x1D /* SDD File used to find DPLL */
+
+#include "fwio.h"
+
+static int etf_request(struct cw1200_common *priv,
+		       struct etf_req_msg *msg,
+		       u32 len)
+{
+	int rval = -1;
+	switch (msg->id) {
+	case ST90TDS_START_ADAPTER:
+		etf_firmware = "cw1200_etf.bin";
+		pr_info("ETF_START (len %d, '%s')\n", len, etf_firmware);
+		rval = cw1200_load_firmware(priv);
+		break;
+	case ST90TDS_STOP_ADAPTER:
+		pr_info("ETF_STOP (unhandled)\n");
+		break;
+	case ST90TDS_SEND_SDD:
+		pr_info("ETF_SDD\n");
+		rval = parse_sdd_file(priv, msg->data, msg->len);
+		break;
+	case ST90TDS_CONFIG_ADAPTER:
+		pr_info("ETF_CONFIG_ADAP (unhandled)\n");
+		break;
+	case ST90TDS_SBUS_READ:
+		pr_info("ETF_SBUS_READ (unhandled)\n");
+		break;
+	case ST90TDS_SBUS_WRITE:
+		pr_info("ETF_SBUS_WRITE (unhandled)\n");
+		break;
+	case ST90TDS_SET_DEVICE_OPTION:
+		pr_info("ETF_SET_DEV_OPT (unhandled)\n");
+		break;
+	default:
+		pr_info("ETF_PASSTHRU (0x%08x)\n", msg->id);
+		rval = wsm_raw_cmd(priv, (u8 *)msg, len);
+		break;
+	}
+
+	return rval;
+}
+#endif /* CONFIG_CW1200_ETF */
diff --git a/drivers/net/wireless/cw1200/debug.h b/drivers/net/wireless/cw1200/debug.h
new file mode 100644
index 0000000..1fea5b2
--- /dev/null
+++ b/drivers/net/wireless/cw1200/debug.h
@@ -0,0 +1,98 @@
+/*
+ * DebugFS code for ST-Ericsson CW1200 mac80211 driver
+ *
+ * Copyright (c) 2011, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_DEBUG_H_INCLUDED
+#define CW1200_DEBUG_H_INCLUDED
+
+#include "itp.h"
+
+struct cw1200_debug_priv {
+	struct dentry *debugfs_phy;
+	int tx;
+	int tx_agg;
+	int rx;
+	int rx_agg;
+	int tx_multi;
+	int tx_multi_frames;
+	int tx_cache_miss;
+	int tx_align;
+	int tx_ttl;
+	int tx_burst;
+	int ba_cnt;
+	int ba_acc;
+	int ba_cnt_rx;
+	int ba_acc_rx;
+#ifdef CONFIG_CW1200_ITP
+	struct cw1200_itp itp;
+#endif /* CONFIG_CW1200_ITP */
+};
+
+int cw1200_debug_init(struct cw1200_common *priv);
+void cw1200_debug_release(struct cw1200_common *priv);
+
+static inline void cw1200_debug_txed(struct cw1200_common *priv)
+{
+	++priv->debug->tx;
+}
+
+static inline void cw1200_debug_txed_agg(struct cw1200_common *priv)
+{
+	++priv->debug->tx_agg;
+}
+
+static inline void cw1200_debug_txed_multi(struct cw1200_common *priv,
+					   int count)
+{
+	++priv->debug->tx_multi;
+	priv->debug->tx_multi_frames += count;
+}
+
+static inline void cw1200_debug_rxed(struct cw1200_common *priv)
+{
+	++priv->debug->rx;
+}
+
+static inline void cw1200_debug_rxed_agg(struct cw1200_common *priv)
+{
+	++priv->debug->rx_agg;
+}
+
+static inline void cw1200_debug_tx_cache_miss(struct cw1200_common *priv)
+{
+	++priv->debug->tx_cache_miss;
+}
+
+static inline void cw1200_debug_tx_align(struct cw1200_common *priv)
+{
+	++priv->debug->tx_align;
+}
+
+static inline void cw1200_debug_tx_ttl(struct cw1200_common *priv)
+{
+	++priv->debug->tx_ttl;
+}
+
+static inline void cw1200_debug_tx_burst(struct cw1200_common *priv)
+{
+	++priv->debug->tx_burst;
+}
+
+static inline void cw1200_debug_ba(struct cw1200_common *priv,
+				   int ba_cnt, int ba_acc,
+				   int ba_cnt_rx, int ba_acc_rx)
+{
+	priv->debug->ba_cnt = ba_cnt;
+	priv->debug->ba_acc = ba_acc;
+	priv->debug->ba_cnt_rx = ba_cnt_rx;
+	priv->debug->ba_acc_rx = ba_acc_rx;
+}
+
+#endif /* CW1200_DEBUG_H_INCLUDED */
diff --git a/drivers/net/wireless/cw1200/fwio.c b/drivers/net/wireless/cw1200/fwio.c
new file mode 100644
index 0000000..ad01cd2
--- /dev/null
+++ b/drivers/net/wireless/cw1200/fwio.c
@@ -0,0 +1,525 @@
+/*
+ * Firmware I/O code for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
+
+#include "cw1200.h"
+#include "fwio.h"
+#include "hwio.h"
+#include "sbus.h"
+#include "bh.h"
+
+static int cw1200_get_hw_type(u32 config_reg_val, int *major_revision)
+{
+	int hw_type = -1;
+	u32 silicon_type = (config_reg_val >> 24) & 0x7;
+	u32 silicon_vers = (config_reg_val >> 31) & 0x1;
+
+	switch (silicon_type) {
+	case 0x00:
+		*major_revision = 1;
+		hw_type = HIF_9000_SILICON_VERSATILE;
+		break;
+	case 0x01:
+	case 0x02: /* CW1x00 */
+	case 0x04: /* CW1x60 */
+		*major_revision = silicon_type;
+		if (silicon_vers)
+			hw_type = HIF_8601_VERSATILE;
+		else
+			hw_type = HIF_8601_SILICON;
+		break;
+	default:
+		break;
+	}
+
+	return hw_type;
+}
+
+static int cw1200_load_firmware_cw1200(struct cw1200_common *priv)
+{
+	int ret, block, num_blocks;
+	unsigned i;
+	u32 val32;
+	u32 put = 0, get = 0;
+	u8 *buf = NULL;
+	const char *fw_path;
+	const struct firmware *firmware = NULL;
+
+	/* Macroses are local. */
+#define APB_WRITE(reg, val) \
+	do { \
+		ret = cw1200_apb_write_32(priv, CW1200_APB(reg), (val)); \
+		if (ret < 0) \
+			goto error; \
+	} while (0)
+#define APB_READ(reg, val) \
+	do { \
+		ret = cw1200_apb_read_32(priv, CW1200_APB(reg), &(val)); \
+		if (ret < 0) \
+			goto error; \
+	} while (0)
+#define REG_WRITE(reg, val) \
+	do { \
+		ret = cw1200_reg_write_32(priv, (reg), (val)); \
+		if (ret < 0) \
+			goto error; \
+	} while (0)
+#define REG_READ(reg, val) \
+	do { \
+		ret = cw1200_reg_read_32(priv, (reg), &(val)); \
+		if (ret < 0) \
+			goto error; \
+	} while (0)
+
+	switch (priv->hw_revision) {
+	case CW1200_HW_REV_CUT10:
+		fw_path = FIRMWARE_CUT10;
+		if (!priv->sdd_path)
+			priv->sdd_path = SDD_FILE_10;
+		break;
+	case CW1200_HW_REV_CUT11:
+		fw_path = FIRMWARE_CUT11;
+		if (!priv->sdd_path)
+			priv->sdd_path = SDD_FILE_11;
+		break;
+	case CW1200_HW_REV_CUT20:
+		fw_path = FIRMWARE_CUT20;
+		if (!priv->sdd_path)
+			priv->sdd_path = SDD_FILE_20;
+		break;
+	case CW1200_HW_REV_CUT22:
+		fw_path = FIRMWARE_CUT22;
+		if (!priv->sdd_path)
+			priv->sdd_path = SDD_FILE_22;
+		break;
+	case CW1X60_HW_REV:
+		fw_path = FIRMWARE_CW1X60;
+		if (!priv->sdd_path)
+			priv->sdd_path = SDD_FILE_CW1X60;
+		break;
+	default:
+		pr_err("Invalid silicon revision %d.\n", priv->hw_revision);
+		return -EINVAL;
+	}
+
+	/* Initialize common registers */
+	APB_WRITE(DOWNLOAD_IMAGE_SIZE_REG, DOWNLOAD_ARE_YOU_HERE);
+	APB_WRITE(DOWNLOAD_PUT_REG, 0);
+	APB_WRITE(DOWNLOAD_GET_REG, 0);
+	APB_WRITE(DOWNLOAD_STATUS_REG, DOWNLOAD_PENDING);
+	APB_WRITE(DOWNLOAD_FLAGS_REG, 0);
+
+	/* Write the NOP Instruction */
+	REG_WRITE(ST90TDS_SRAM_BASE_ADDR_REG_ID, 0xFFF20000);
+	REG_WRITE(ST90TDS_AHB_DPORT_REG_ID, 0xEAFFFFFE);
+
+	/* Release CPU from RESET */
+	REG_READ(ST90TDS_CONFIG_REG_ID, val32);
+	val32 &= ~ST90TDS_CONFIG_CPU_RESET_BIT;
+	REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
+
+	/* Enable Clock */
+	val32 &= ~ST90TDS_CONFIG_CPU_CLK_DIS_BIT;
+	REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
+
+#ifdef CONFIG_CW1200_ETF
+	if (etf_mode)
+		fw_path = etf_firmware;
+#endif
+
+	/* Load a firmware file */
+	ret = request_firmware(&firmware, fw_path, priv->pdev);
+	if (ret) {
+		pr_err("Can't load firmware file %s.\n", fw_path);
+		goto error;
+	}
+
+	buf = kmalloc(DOWNLOAD_BLOCK_SIZE, GFP_KERNEL | GFP_DMA);
+	if (!buf) {
+		pr_err("Can't allocate firmware load buffer.\n");
+		ret = -ENOMEM;
+		goto error;
+	}
+
+	/* Check if the bootloader is ready */
+	for (i = 0; i < 100; i += 1 + i / 2) {
+		APB_READ(DOWNLOAD_IMAGE_SIZE_REG, val32);
+		if (val32 == DOWNLOAD_I_AM_HERE)
+			break;
+		mdelay(i);
+	} /* End of for loop */
+
+	if (val32 != DOWNLOAD_I_AM_HERE) {
+		pr_err("Bootloader is not ready.\n");
+		ret = -ETIMEDOUT;
+		goto error;
+	}
+
+	/* Calculcate number of download blocks */
+	num_blocks = (firmware->size - 1) / DOWNLOAD_BLOCK_SIZE + 1;
+
+	/* Updating the length in Download Ctrl Area */
+	val32 = firmware->size; /* Explicit cast from size_t to u32 */
+	APB_WRITE(DOWNLOAD_IMAGE_SIZE_REG, val32);
+
+	/* Firmware downloading loop */
+	for (block = 0; block < num_blocks; block++) {
+		size_t tx_size;
+		size_t block_size;
+
+		/* check the download status */
+		APB_READ(DOWNLOAD_STATUS_REG, val32);
+		if (val32 != DOWNLOAD_PENDING) {
+			pr_err("Bootloader reported error %d.\n", val32);
+			ret = -EIO;
+			goto error;
+		}
+
+		/* loop until put - get <= 24K */
+		for (i = 0; i < 100; i++) {
+			APB_READ(DOWNLOAD_GET_REG, get);
+			if ((put - get) <=
+			    (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE))
+				break;
+			mdelay(i);
+		}
+
+		if ((put - get) > (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE)) {
+			pr_err("Timeout waiting for FIFO.\n");
+			ret = -ETIMEDOUT;
+			goto error;
+		}
+
+		/* calculate the block size */
+		tx_size = block_size = min((size_t)(firmware->size - put),
+			(size_t)DOWNLOAD_BLOCK_SIZE);
+
+		memcpy(buf, &firmware->data[put], block_size);
+		if (block_size < DOWNLOAD_BLOCK_SIZE) {
+			memset(&buf[block_size], 0,
+			       DOWNLOAD_BLOCK_SIZE - block_size);
+			tx_size = DOWNLOAD_BLOCK_SIZE;
+		}
+
+		/* send the block to sram */
+		ret = cw1200_apb_write(priv,
+			CW1200_APB(DOWNLOAD_FIFO_OFFSET +
+				   (put & (DOWNLOAD_FIFO_SIZE - 1))),
+			buf, tx_size);
+		if (ret < 0) {
+			pr_err("Can't write firmware block @ %d!\n",
+			       put & (DOWNLOAD_FIFO_SIZE - 1));
+			goto error;
+		}
+
+		/* update the put register */
+		put += block_size;
+		APB_WRITE(DOWNLOAD_PUT_REG, put);
+	} /* End of firmware download loop */
+
+	/* Wait for the download completion */
+	for (i = 0; i < 300; i += 1 + i / 2) {
+		APB_READ(DOWNLOAD_STATUS_REG, val32);
+		if (val32 != DOWNLOAD_PENDING)
+			break;
+		mdelay(i);
+	}
+	if (val32 != DOWNLOAD_SUCCESS) {
+		pr_err("Wait for download completion failed: 0x%.8X\n", val32);
+		ret = -ETIMEDOUT;
+		goto error;
+	} else {
+		pr_info("Firmware download completed.\n");
+		ret = 0;
+	}
+
+error:
+	kfree(buf);
+	if (firmware)
+		release_firmware(firmware);
+	return ret;
+
+#undef APB_WRITE
+#undef APB_READ
+#undef REG_WRITE
+#undef REG_READ
+}
+
+
+static int config_reg_read(struct cw1200_common *priv, u32 *val)
+{
+	switch (priv->hw_type) {
+	case HIF_9000_SILICON_VERSATILE: {
+		u16 val16;
+		int ret = cw1200_reg_read_16(priv,
+					     ST90TDS_CONFIG_REG_ID,
+					     &val16);
+		if (ret < 0)
+			return ret;
+		*val = val16;
+		return 0;
+	}
+	case HIF_8601_VERSATILE:
+	case HIF_8601_SILICON:
+	default:
+		cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, val);
+		break;
+	}
+	return 0;
+}
+
+static int config_reg_write(struct cw1200_common *priv, u32 val)
+{
+	switch (priv->hw_type) {
+	case HIF_9000_SILICON_VERSATILE:
+		return cw1200_reg_write_16(priv,
+					   ST90TDS_CONFIG_REG_ID,
+					   (u16)val);
+	case HIF_8601_VERSATILE:
+	case HIF_8601_SILICON:
+	default:
+		return cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val);
+		break;
+	}
+	return 0;
+}
+
+int cw1200_load_firmware(struct cw1200_common *priv)
+{
+	int ret;
+	int i;
+	u32 val32;
+	u16 val16;
+	int major_revision = -1;
+
+	/* Read CONFIG Register */
+	ret = cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
+	if (ret < 0) {
+		pr_err("Can't read config register.\n");
+		goto out;
+	}
+
+	if (val32 == 0 || val32 == 0xffffffff) {
+		pr_err("Bad config register value (0x%08x)\n", val32);
+		ret = -EIO;
+		goto out;
+	}
+
+	priv->hw_type = cw1200_get_hw_type(val32, &major_revision);
+	if (priv->hw_type < 0) {
+		pr_err("Can't deduce hardware type.\n");
+		ret = -ENOTSUPP;
+		goto out;
+	}
+
+	/* Set DPLL Reg value, and read back to confirm writes work */
+	ret = cw1200_reg_write_32(priv, ST90TDS_TSET_GEN_R_W_REG_ID,
+				  cw1200_dpll_from_clk(priv->hw_refclk));
+	if (ret < 0) {
+		pr_err("Can't write DPLL register.\n");
+		goto out;
+	}
+
+	msleep(20);
+
+	ret = cw1200_reg_read_32(priv,
+		ST90TDS_TSET_GEN_R_W_REG_ID, &val32);
+	if (ret < 0) {
+		pr_err("Can't read DPLL register.\n");
+		goto out;
+	}
+
+	if (val32 != cw1200_dpll_from_clk(priv->hw_refclk)) {
+		pr_err("Unable to initialise DPLL register. Wrote 0x%.8X, Read 0x%.8X.\n",
+		       cw1200_dpll_from_clk(priv->hw_refclk), val32);
+		ret = -EIO;
+		goto out;
+	}
+
+	/* Set wakeup bit in device */
+	ret = cw1200_reg_read_16(priv, ST90TDS_CONTROL_REG_ID, &val16);
+	if (ret < 0) {
+		pr_err("set_wakeup: can't read control register.\n");
+		goto out;
+	}
+
+	ret = cw1200_reg_write_16(priv, ST90TDS_CONTROL_REG_ID,
+		val16 | ST90TDS_CONT_WUP_BIT);
+	if (ret < 0) {
+		pr_err("set_wakeup: can't write control register.\n");
+		goto out;
+	}
+
+	/* Wait for wakeup */
+	for (i = 0; i < 300; i += (1 + i / 2)) {
+		ret = cw1200_reg_read_16(priv,
+			ST90TDS_CONTROL_REG_ID, &val16);
+		if (ret < 0) {
+			pr_err("wait_for_wakeup: can't read control register.\n");
+			goto out;
+		}
+
+		if (val16 & ST90TDS_CONT_RDY_BIT)
+			break;
+
+		msleep(i);
+	}
+
+	if ((val16 & ST90TDS_CONT_RDY_BIT) == 0) {
+		pr_err("wait_for_wakeup: device is not responding.\n");
+		ret = -ETIMEDOUT;
+		goto out;
+	}
+
+	switch (major_revision) {
+	case 1:
+		/* CW1200 Hardware detection logic : Check for CUT1.1 */
+		ret = cw1200_ahb_read_32(priv, CW1200_CUT_ID_ADDR, &val32);
+		if (ret) {
+			pr_err("HW detection: can't read CUT ID.\n");
+			goto out;
+		}
+
+		switch (val32) {
+		case CW1200_CUT_11_ID_STR:
+			pr_info("CW1x00 Cut 1.1 silicon detected.\n");
+			priv->hw_revision = CW1200_HW_REV_CUT11;
+			break;
+		default:
+			pr_info("CW1x00 Cut 1.0 silicon detected.\n");
+			priv->hw_revision = CW1200_HW_REV_CUT10;
+			break;
+		}
+
+		/* According to ST-E, CUT<2.0 has busted BA TID0-3.
+		   Just disable it entirely...
+		*/
+		priv->ba_rx_tid_mask = 0;
+		priv->ba_tx_tid_mask = 0;
+		break;
+	case 2: {
+		u32 ar1, ar2, ar3;
+		ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR, &ar1);
+		if (ret) {
+			pr_err("(1) HW detection: can't read CUT ID\n");
+			goto out;
+		}
+		ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR + 4, &ar2);
+		if (ret) {
+			pr_err("(2) HW detection: can't read CUT ID.\n");
+			goto out;
+		}
+
+		ret = cw1200_ahb_read_32(priv, CW1200_CUT2_ID_ADDR + 8, &ar3);
+		if (ret) {
+			pr_err("(3) HW detection: can't read CUT ID.\n");
+			goto out;
+		}
+
+		if (ar1 == CW1200_CUT_22_ID_STR1 &&
+		    ar2 == CW1200_CUT_22_ID_STR2 &&
+		    ar3 == CW1200_CUT_22_ID_STR3) {
+			pr_info("CW1x00 Cut 2.2 silicon detected.\n");
+			priv->hw_revision = CW1200_HW_REV_CUT22;
+		} else {
+			pr_info("CW1x00 Cut 2.0 silicon detected.\n");
+			priv->hw_revision = CW1200_HW_REV_CUT20;
+		}
+		break;
+	}
+	case 4:
+		pr_info("CW1x60 silicon detected.\n");
+		priv->hw_revision = CW1X60_HW_REV;
+		break;
+	default:
+		pr_err("Unsupported silicon major revision %d.\n",
+		       major_revision);
+		ret = -ENOTSUPP;
+		goto out;
+	}
+
+	/* Checking for access mode */
+	ret = config_reg_read(priv, &val32);
+	if (ret < 0) {
+		pr_err("Can't read config register.\n");
+		goto out;
+	}
+
+	if (!(val32 & ST90TDS_CONFIG_ACCESS_MODE_BIT)) {
+		pr_err("Device is already in QUEUE mode!\n");
+			ret = -EINVAL;
+			goto out;
+	}
+
+	switch (priv->hw_type)  {
+	case HIF_8601_SILICON:
+		if (priv->hw_revision == CW1X60_HW_REV) {
+			pr_err("Can't handle CW1160/1260 firmware load yet.\n");
+			ret = -ENOTSUPP;
+			goto out;
+		}
+		ret = cw1200_load_firmware_cw1200(priv);
+		break;
+	default:
+		pr_err("Can't perform firmware load for hw type %d.\n",
+		       priv->hw_type);
+		ret = -ENOTSUPP;
+		goto out;
+	}
+	if (ret < 0) {
+		pr_err("Firmware load error.\n");
+		goto out;
+	}
+
+	/* Enable interrupt signalling */
+	priv->sbus_ops->lock(priv->sbus_priv);
+	ret = __cw1200_irq_enable(priv, 1);
+	priv->sbus_ops->unlock(priv->sbus_priv);
+	if (ret < 0)
+		goto unsubscribe;
+
+	/* Configure device for MESSSAGE MODE */
+	ret = config_reg_read(priv, &val32);
+	if (ret < 0) {
+		pr_err("Can't read config register.\n");
+		goto unsubscribe;
+	}
+	ret = config_reg_write(priv, val32 & ~ST90TDS_CONFIG_ACCESS_MODE_BIT);
+	if (ret < 0) {
+		pr_err("Can't write config register.\n");
+		goto unsubscribe;
+	}
+
+	/* Unless we read the CONFIG Register we are
+	 * not able to get an interrupt
+	 */
+	mdelay(10);
+	config_reg_read(priv, &val32);
+
+out:
+	return ret;
+
+unsubscribe:
+	/* Disable interrupt signalling */
+	priv->sbus_ops->lock(priv->sbus_priv);
+	ret = __cw1200_irq_enable(priv, 0);
+	priv->sbus_ops->unlock(priv->sbus_priv);
+	return ret;
+}
diff --git a/drivers/net/wireless/cw1200/fwio.h b/drivers/net/wireless/cw1200/fwio.h
new file mode 100644
index 0000000..ea30993
--- /dev/null
+++ b/drivers/net/wireless/cw1200/fwio.h
@@ -0,0 +1,39 @@
+/*
+ * Firmware API for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef FWIO_H_INCLUDED
+#define FWIO_H_INCLUDED
+
+#define BOOTLOADER_CW1X60       "boot_cw1x60.bin"
+#define FIRMWARE_CW1X60		"wsm_cw1x60.bin"
+#define FIRMWARE_CUT22		"wsm_22.bin"
+#define FIRMWARE_CUT20		"wsm_20.bin"
+#define FIRMWARE_CUT11		"wsm_11.bin"
+#define FIRMWARE_CUT10		"wsm_10.bin"
+#define SDD_FILE_CW1X60		"sdd_cw1x60.bin"
+#define SDD_FILE_22		"sdd_22.bin"
+#define SDD_FILE_20		"sdd_20.bin"
+#define SDD_FILE_11		"sdd_11.bin"
+#define SDD_FILE_10		"sdd_10.bin"
+
+int cw1200_load_firmware(struct cw1200_common *priv);
+
+/* SDD definitions */
+#define SDD_PTA_CFG_ELT_ID 0xEB
+#define SDD_REFERENCE_FREQUENCY_ELT_ID 0xc5
+u32 cw1200_dpll_from_clk(u16 clk);
+
+#endif
diff --git a/drivers/net/wireless/cw1200/hwio.c b/drivers/net/wireless/cw1200/hwio.c
new file mode 100644
index 0000000..1af7b3d
--- /dev/null
+++ b/drivers/net/wireless/cw1200/hwio.c
@@ -0,0 +1,311 @@
+/*
+ * Low-level device IO routines for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver, which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+
+#include "cw1200.h"
+#include "hwio.h"
+#include "sbus.h"
+
+ /* Sdio addr is 4*spi_addr */
+#define SPI_REG_ADDR_TO_SDIO(spi_reg_addr) ((spi_reg_addr) << 2)
+#define SDIO_ADDR17BIT(buf_id, mpf, rfu, reg_id_ofs) \
+				((((buf_id)    & 0x1F) << 7) \
+				| (((mpf)        & 1) << 6) \
+				| (((rfu)        & 1) << 5) \
+				| (((reg_id_ofs) & 0x1F) << 0))
+#define MAX_RETRY		3
+
+
+static int __cw1200_reg_read(struct cw1200_common *priv, u16 addr,
+			     void *buf, size_t buf_len, int buf_id)
+{
+	u16 addr_sdio;
+	u32 sdio_reg_addr_17bit;
+
+	/* Check if buffer is aligned to 4 byte boundary */
+	if (WARN_ON(((unsigned long)buf & 3) && (buf_len > 4))) {
+		pr_err("buffer is not aligned.\n");
+		return -EINVAL;
+	}
+
+	/* Convert to SDIO Register Address */
+	addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
+	sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
+
+	return priv->sbus_ops->sbus_memcpy_fromio(priv->sbus_priv,
+						  sdio_reg_addr_17bit,
+						  buf, buf_len);
+}
+
+static int __cw1200_reg_write(struct cw1200_common *priv, u16 addr,
+				const void *buf, size_t buf_len, int buf_id)
+{
+	u16 addr_sdio;
+	u32 sdio_reg_addr_17bit;
+
+	/* Convert to SDIO Register Address */
+	addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
+	sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
+
+	return priv->sbus_ops->sbus_memcpy_toio(priv->sbus_priv,
+						sdio_reg_addr_17bit,
+						buf, buf_len);
+}
+
+static inline int __cw1200_reg_read_32(struct cw1200_common *priv,
+					u16 addr, u32 *val)
+{
+	int i = __cw1200_reg_read(priv, addr, val, sizeof(*val), 0);
+	*val = le32_to_cpu(*val);
+	return i;
+}
+
+static inline int __cw1200_reg_write_32(struct cw1200_common *priv,
+					u16 addr, u32 val)
+{
+	val = cpu_to_le32(val);
+	return __cw1200_reg_write(priv, addr, &val, sizeof(val), 0);
+}
+
+static inline int __cw1200_reg_read_16(struct cw1200_common *priv,
+					u16 addr, u16 *val)
+{
+	int i = __cw1200_reg_read(priv, addr, val, sizeof(*val), 0);
+	*val = le16_to_cpu(*val);
+	return i;
+}
+
+static inline int __cw1200_reg_write_16(struct cw1200_common *priv,
+					u16 addr, u16 val)
+{
+	val = cpu_to_le16(val);
+	return __cw1200_reg_write(priv, addr, &val, sizeof(val), 0);
+}
+
+int cw1200_reg_read(struct cw1200_common *priv, u16 addr, void *buf,
+			size_t buf_len)
+{
+	int ret;
+	priv->sbus_ops->lock(priv->sbus_priv);
+	ret = __cw1200_reg_read(priv, addr, buf, buf_len, 0);
+	priv->sbus_ops->unlock(priv->sbus_priv);
+	return ret;
+}
+
+int cw1200_reg_write(struct cw1200_common *priv, u16 addr, const void *buf,
+			size_t buf_len)
+{
+	int ret;
+	priv->sbus_ops->lock(priv->sbus_priv);
+	ret = __cw1200_reg_write(priv, addr, buf, buf_len, 0);
+	priv->sbus_ops->unlock(priv->sbus_priv);
+	return ret;
+}
+
+int cw1200_data_read(struct cw1200_common *priv, void *buf, size_t buf_len)
+{
+	int ret, retry = 1;
+	int buf_id_rx = priv->buf_id_rx;
+
+	priv->sbus_ops->lock(priv->sbus_priv);
+
+	while (retry <= MAX_RETRY) {
+		ret = __cw1200_reg_read(priv,
+					ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
+					buf_len, buf_id_rx + 1);
+		if (!ret) {
+			buf_id_rx = (buf_id_rx + 1) & 3;
+			priv->buf_id_rx = buf_id_rx;
+			break;
+		} else {
+			retry++;
+			mdelay(1);
+			pr_err("error :[%d]\n", ret);
+		}
+	}
+
+	priv->sbus_ops->unlock(priv->sbus_priv);
+	return ret;
+}
+
+int cw1200_data_write(struct cw1200_common *priv, const void *buf,
+			size_t buf_len)
+{
+	int ret, retry = 1;
+	int buf_id_tx = priv->buf_id_tx;
+
+	priv->sbus_ops->lock(priv->sbus_priv);
+
+	while (retry <= MAX_RETRY) {
+		ret = __cw1200_reg_write(priv,
+					 ST90TDS_IN_OUT_QUEUE_REG_ID, buf,
+					 buf_len, buf_id_tx);
+		if (!ret) {
+			buf_id_tx = (buf_id_tx + 1) & 31;
+			priv->buf_id_tx = buf_id_tx;
+			break;
+		} else {
+			retry++;
+			mdelay(1);
+			pr_err("error :[%d]\n", ret);
+		}
+	}
+
+	priv->sbus_ops->unlock(priv->sbus_priv);
+	return ret;
+}
+
+int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
+			 size_t buf_len, u32 prefetch, u16 port_addr)
+{
+	u32 val32 = 0;
+	int i, ret;
+
+	if ((buf_len / 2) >= 0x1000) {
+		pr_err("Can't read more than 0xfff words.\n");
+		return -EINVAL;
+		goto out;
+	}
+
+	priv->sbus_ops->lock(priv->sbus_priv);
+	/* Write address */
+	ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
+	if (ret < 0) {
+		pr_err("Can't write address register.\n");
+		goto out;
+	}
+
+	/* Read CONFIG Register Value - We will read 32 bits */
+	ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
+	if (ret < 0) {
+		pr_err("Can't read config register.\n");
+		goto out;
+	}
+
+	/* Set PREFETCH bit */
+	ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID,
+					val32 | prefetch);
+	if (ret < 0) {
+		pr_err("Can't write prefetch bit.\n");
+		goto out;
+	}
+
+	/* Check for PRE-FETCH bit to be cleared */
+	for (i = 0; i < 20; i++) {
+		ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
+		if (ret < 0) {
+			pr_err("Can't check prefetch bit.\n");
+			goto out;
+		}
+		if (!(val32 & prefetch))
+			break;
+
+		mdelay(i);
+	}
+
+	if (val32 & prefetch) {
+		pr_err("Prefetch bit is not cleared.\n");
+		goto out;
+	}
+
+	/* Read data port */
+	ret = __cw1200_reg_read(priv, port_addr, buf, buf_len, 0);
+	if (ret < 0) {
+		pr_err("Can't read data port.\n");
+		goto out;
+	}
+
+out:
+	priv->sbus_ops->unlock(priv->sbus_priv);
+	return ret;
+}
+
+int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
+			size_t buf_len)
+{
+	int ret;
+
+	if ((buf_len / 2) >= 0x1000) {
+		pr_err("Can't write more than 0xfff words.\n");
+		return -EINVAL;
+	}
+
+	priv->sbus_ops->lock(priv->sbus_priv);
+
+	/* Write address */
+	ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
+	if (ret < 0) {
+		pr_err("Can't write address register.\n");
+		goto out;
+	}
+
+	/* Write data port */
+	ret = __cw1200_reg_write(priv, ST90TDS_SRAM_DPORT_REG_ID,
+					buf, buf_len, 0);
+	if (ret < 0) {
+		pr_err("Can't write data port.\n");
+		goto out;
+	}
+
+out:
+	priv->sbus_ops->unlock(priv->sbus_priv);
+	return ret;
+}
+
+int __cw1200_irq_enable(struct cw1200_common *priv, int enable)
+{
+	u32 val32;
+	u16 val16;
+	int ret;
+
+	if (HIF_8601_SILICON == priv->hw_type) {
+		ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
+		if (ret < 0) {
+			pr_err("Can't read config register.\n");
+			return ret;
+		}
+
+		if (enable)
+			val32 |= ST90TDS_CONF_IRQ_RDY_ENABLE;
+		else
+			val32 &= ~ST90TDS_CONF_IRQ_RDY_ENABLE;
+
+		ret = __cw1200_reg_write_32(priv, ST90TDS_CONFIG_REG_ID, val32);
+		if (ret < 0) {
+			pr_err("Can't write config register.\n");
+			return ret;
+		}
+	} else {
+		ret = __cw1200_reg_read_16(priv, ST90TDS_CONFIG_REG_ID, &val16);
+		if (ret < 0) {
+			pr_err("Can't read control register.\n");
+			return ret;
+		}
+
+		if (enable)
+			val16 |= ST90TDS_CONT_IRQ_RDY_ENABLE;
+		else
+			val16 &= ~ST90TDS_CONT_IRQ_RDY_ENABLE;
+
+		ret = __cw1200_reg_write_16(priv, ST90TDS_CONFIG_REG_ID, val16);
+		if (ret < 0) {
+			pr_err("Can't write control register.\n");
+			return ret;
+		}
+	}
+	return 0;
+}
diff --git a/drivers/net/wireless/cw1200/hwio.h b/drivers/net/wireless/cw1200/hwio.h
new file mode 100644
index 0000000..7ee73fe
--- /dev/null
+++ b/drivers/net/wireless/cw1200/hwio.h
@@ -0,0 +1,247 @@
+/*
+ * Low-level API for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * ST-Ericsson UMAC CW1200 driver which is
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Ajitpal Singh <ajitpal.singh@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_HWIO_H_INCLUDED
+#define CW1200_HWIO_H_INCLUDED
+
+/* extern */ struct cw1200_common;
+
+#define CW1200_CUT_11_ID_STR		(0x302E3830)
+#define CW1200_CUT_22_ID_STR1		(0x302e3132)
+#define CW1200_CUT_22_ID_STR2		(0x32302e30)
+#define CW1200_CUT_22_ID_STR3		(0x3335)
+#define CW1200_CUT_ID_ADDR		(0xFFF17F90)
+#define CW1200_CUT2_ID_ADDR		(0xFFF1FF90)
+
+/* Download control area */
+/* boot loader start address in SRAM */
+#define DOWNLOAD_BOOT_LOADER_OFFSET	(0x00000000)
+/* 32K, 0x4000 to 0xDFFF */
+#define DOWNLOAD_FIFO_OFFSET		(0x00004000)
+/* 32K */
+#define DOWNLOAD_FIFO_SIZE		(0x00008000)
+/* 128 bytes, 0xFF80 to 0xFFFF */
+#define DOWNLOAD_CTRL_OFFSET		(0x0000FF80)
+#define DOWNLOAD_CTRL_DATA_DWORDS	(32-6)
+
+struct download_cntl_t {
+	/* size of whole firmware file (including Cheksum), host init */
+	u32 image_size;
+	/* downloading flags */
+	u32 flags;
+	/* No. of bytes put into the download, init & updated by host */
+	u32 put;
+	/* last traced program counter, last ARM reg_pc */
+	u32 trace_pc;
+	/* No. of bytes read from the download, host init, device updates */
+	u32 get;
+	/* r0, boot losader status, host init to pending, device updates */
+	u32 status;
+	/* Extra debug info, r1 to r14 if status=r0=DOWNLOAD_EXCEPTION */
+	u32 debug_data[DOWNLOAD_CTRL_DATA_DWORDS];
+};
+
+#define	DOWNLOAD_IMAGE_SIZE_REG		\
+	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, image_size))
+#define	DOWNLOAD_FLAGS_REG		\
+	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, flags))
+#define DOWNLOAD_PUT_REG		\
+	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, put))
+#define DOWNLOAD_TRACE_PC_REG		\
+	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, trace_pc))
+#define	DOWNLOAD_GET_REG		\
+	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, get))
+#define	DOWNLOAD_STATUS_REG		\
+	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, status))
+#define DOWNLOAD_DEBUG_DATA_REG		\
+	(DOWNLOAD_CTRL_OFFSET + offsetof(struct download_cntl_t, debug_data))
+#define DOWNLOAD_DEBUG_DATA_LEN		(108)
+
+#define DOWNLOAD_BLOCK_SIZE		(1024)
+
+/* For boot loader detection */
+#define DOWNLOAD_ARE_YOU_HERE		(0x87654321)
+#define DOWNLOAD_I_AM_HERE		(0x12345678)
+
+/* Download error code */
+#define DOWNLOAD_PENDING		(0xFFFFFFFF)
+#define DOWNLOAD_SUCCESS		(0)
+#define DOWNLOAD_EXCEPTION		(1)
+#define DOWNLOAD_ERR_MEM_1		(2)
+#define DOWNLOAD_ERR_MEM_2		(3)
+#define DOWNLOAD_ERR_SOFTWARE		(4)
+#define DOWNLOAD_ERR_FILE_SIZE		(5)
+#define DOWNLOAD_ERR_CHECKSUM		(6)
+#define DOWNLOAD_ERR_OVERFLOW		(7)
+#define DOWNLOAD_ERR_IMAGE		(8)
+#define DOWNLOAD_ERR_HOST		(9)
+#define DOWNLOAD_ERR_ABORT		(10)
+
+
+#define SYS_BASE_ADDR_SILICON		(0)
+#define PAC_BASE_ADDRESS_SILICON	(SYS_BASE_ADDR_SILICON + 0x09000000)
+#define PAC_SHARED_MEMORY_SILICON	(PAC_BASE_ADDRESS_SILICON)
+
+#define CW1200_APB(addr)		(PAC_SHARED_MEMORY_SILICON + (addr))
+
+/* ***************************************************************
+*Device register definitions
+*************************************************************** */
+/* WBF - SPI Register Addresses */
+#define ST90TDS_ADDR_ID_BASE		(0x0000)
+/* 16/32 bits */
+#define ST90TDS_CONFIG_REG_ID		(0x0000)
+/* 16/32 bits */
+#define ST90TDS_CONTROL_REG_ID		(0x0001)
+/* 16 bits, Q mode W/R */
+#define ST90TDS_IN_OUT_QUEUE_REG_ID	(0x0002)
+/* 32 bits, AHB bus R/W */
+#define ST90TDS_AHB_DPORT_REG_ID	(0x0003)
+/* 16/32 bits */
+#define ST90TDS_SRAM_BASE_ADDR_REG_ID   (0x0004)
+/* 32 bits, APB bus R/W */
+#define ST90TDS_SRAM_DPORT_REG_ID	(0x0005)
+/* 32 bits, t_settle/general */
+#define ST90TDS_TSET_GEN_R_W_REG_ID	(0x0006)
+/* 16 bits, Q mode read, no length */
+#define ST90TDS_FRAME_OUT_REG_ID	(0x0007)
+#define ST90TDS_ADDR_ID_MAX		(ST90TDS_FRAME_OUT_REG_ID)
+
+/* WBF - Control register bit set */
+/* next o/p length, bit 11 to 0 */
+#define ST90TDS_CONT_NEXT_LEN_MASK	(0x0FFF)
+#define ST90TDS_CONT_WUP_BIT		(BIT(12))
+#define ST90TDS_CONT_RDY_BIT		(BIT(13))
+#define ST90TDS_CONT_IRQ_ENABLE		(BIT(14))
+#define ST90TDS_CONT_RDY_ENABLE		(BIT(15))
+#define ST90TDS_CONT_IRQ_RDY_ENABLE	(BIT(14)|BIT(15))
+
+/* SPI Config register bit set */
+#define ST90TDS_CONFIG_FRAME_BIT	(BIT(2))
+#define ST90TDS_CONFIG_WORD_MODE_BITS	(BIT(3)|BIT(4))
+#define ST90TDS_CONFIG_WORD_MODE_1	(BIT(3))
+#define ST90TDS_CONFIG_WORD_MODE_2	(BIT(4))
+#define ST90TDS_CONFIG_ERROR_0_BIT	(BIT(5))
+#define ST90TDS_CONFIG_ERROR_1_BIT	(BIT(6))
+#define ST90TDS_CONFIG_ERROR_2_BIT	(BIT(7))
+/* TBD: Sure??? */
+#define ST90TDS_CONFIG_CSN_FRAME_BIT	(BIT(7))
+#define ST90TDS_CONFIG_ERROR_3_BIT	(BIT(8))
+#define ST90TDS_CONFIG_ERROR_4_BIT	(BIT(9))
+/* QueueM */
+#define ST90TDS_CONFIG_ACCESS_MODE_BIT	(BIT(10))
+/* AHB bus */
+#define ST90TDS_CONFIG_AHB_PRFETCH_BIT	(BIT(11))
+#define ST90TDS_CONFIG_CPU_CLK_DIS_BIT	(BIT(12))
+/* APB bus */
+#define ST90TDS_CONFIG_PRFETCH_BIT	(BIT(13))
+/* cpu reset */
+#define ST90TDS_CONFIG_CPU_RESET_BIT	(BIT(14))
+#define ST90TDS_CONFIG_CLEAR_INT_BIT	(BIT(15))
+
+/* For CW1200 the IRQ Enable and Ready Bits are in CONFIG register */
+#define ST90TDS_CONF_IRQ_ENABLE		(BIT(16))
+#define ST90TDS_CONF_RDY_ENABLE		(BIT(17))
+#define ST90TDS_CONF_IRQ_RDY_ENABLE	(BIT(16)|BIT(17))
+
+int cw1200_data_read(struct cw1200_common *priv,
+		     void *buf, size_t buf_len);
+int cw1200_data_write(struct cw1200_common *priv,
+		      const void *buf, size_t buf_len);
+
+int cw1200_reg_read(struct cw1200_common *priv, u16 addr,
+		    void *buf, size_t buf_len);
+int cw1200_reg_write(struct cw1200_common *priv, u16 addr,
+		     const void *buf, size_t buf_len);
+
+static inline int cw1200_reg_read_16(struct cw1200_common *priv,
+				     u16 addr, u16 *val)
+{
+	u32 tmp;
+	int i;
+	i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
+	tmp = le32_to_cpu(tmp);
+	*val = tmp & 0xffff;
+	return i;
+}
+
+static inline int cw1200_reg_write_16(struct cw1200_common *priv,
+				      u16 addr, u16 val)
+{
+	u32 tmp = val;
+	tmp = cpu_to_le32(tmp);
+	return cw1200_reg_write(priv, addr, &tmp, sizeof(tmp));
+}
+
+static inline int cw1200_reg_read_32(struct cw1200_common *priv,
+				     u16 addr, u32 *val)
+{
+	int i = cw1200_reg_read(priv, addr, val, sizeof(*val));
+	*val = le32_to_cpu(*val);
+	return i;
+}
+
+static inline int cw1200_reg_write_32(struct cw1200_common *priv,
+				      u16 addr, u32 val)
+{
+	val = cpu_to_le32(val);
+	return cw1200_reg_write(priv, addr, &val, sizeof(val));
+}
+
+int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
+			 size_t buf_len, u32 prefetch, u16 port_addr);
+int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
+		     size_t buf_len);
+
+static inline int cw1200_apb_read(struct cw1200_common *priv, u32 addr,
+				  void *buf, size_t buf_len)
+{
+	return cw1200_indirect_read(priv, addr, buf, buf_len,
+				    ST90TDS_CONFIG_PRFETCH_BIT,
+				    ST90TDS_SRAM_DPORT_REG_ID);
+}
+
+static inline int cw1200_ahb_read(struct cw1200_common *priv, u32 addr,
+				  void *buf, size_t buf_len)
+{
+	return cw1200_indirect_read(priv, addr, buf, buf_len,
+				    ST90TDS_CONFIG_AHB_PRFETCH_BIT,
+				    ST90TDS_AHB_DPORT_REG_ID);
+}
+
+static inline int cw1200_apb_read_32(struct cw1200_common *priv,
+				     u32 addr, u32 *val)
+{
+	int i = cw1200_apb_read(priv, addr, val, sizeof(*val));
+	*val = le32_to_cpu(*val);
+	return i;
+}
+
+static inline int cw1200_apb_write_32(struct cw1200_common *priv,
+				      u32 addr, u32 val)
+{
+	val = cpu_to_le32(val);
+	return cw1200_apb_write(priv, addr, &val, sizeof(val));
+}
+static inline int cw1200_ahb_read_32(struct cw1200_common *priv,
+				     u32 addr, u32 *val)
+{
+	int i = cw1200_ahb_read(priv, addr, val, sizeof(*val));
+	*val = le32_to_cpu(*val);
+	return i;
+}
+
+#endif /* CW1200_HWIO_H_INCLUDED */
diff --git a/drivers/net/wireless/cw1200/itp.c b/drivers/net/wireless/cw1200/itp.c
new file mode 100644
index 0000000..c0730bb
--- /dev/null
+++ b/drivers/net/wireless/cw1200/itp.c
@@ -0,0 +1,730 @@
+/*
+ * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
+ * ITP code
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include <linux/poll.h>
+#include <linux/time.h>
+#include <linux/random.h>
+#include <linux/kallsyms.h>
+#include <net/mac80211.h>
+#include "cw1200.h"
+#include "debug.h"
+#include "itp.h"
+#include "sta.h"
+
+static int __cw1200_itp_open(struct cw1200_common *priv);
+static int __cw1200_itp_close(struct cw1200_common *priv);
+static void cw1200_itp_rx_start(struct cw1200_common *priv);
+static void cw1200_itp_rx_stop(struct cw1200_common *priv);
+static void cw1200_itp_rx_stats(struct cw1200_common *priv);
+static void cw1200_itp_rx_reset(struct cw1200_common *priv);
+static void cw1200_itp_tx_stop(struct cw1200_common *priv);
+static void cw1200_itp_handle(struct cw1200_common *priv,
+			      struct sk_buff *skb);
+static void cw1200_itp_err(struct cw1200_common *priv,
+			   int err,
+			   int arg);
+static void __cw1200_itp_tx_stop(struct cw1200_common *priv);
+
+static ssize_t cw1200_itp_read(struct file *file,
+	char __user *user_buf, size_t count, loff_t *ppos)
+{
+	struct cw1200_common *priv = file->private_data;
+	struct cw1200_itp *itp = &priv->debug->itp;
+	struct sk_buff *skb;
+	int ret;
+
+	if (skb_queue_empty(&itp->log_queue))
+		return 0;
+
+	skb = skb_dequeue(&itp->log_queue);
+	ret = copy_to_user(user_buf, skb->data, skb->len);
+	*ppos += skb->len;
+	skb->data[skb->len] = 0;
+	pr_debug("[ITP] >>> %s", skb->data);
+	consume_skb(skb);
+
+	return skb->len - ret;
+}
+
+static ssize_t cw1200_itp_write(struct file *file,
+	const char __user *user_buf, size_t count, loff_t *ppos)
+{
+	struct cw1200_common *priv = file->private_data;
+	struct sk_buff *skb;
+
+	if (!count || count > 1024)
+		return -EINVAL;
+	skb = dev_alloc_skb(count + 1);
+	if (!skb)
+		return -ENOMEM;
+	skb_trim(skb, 0);
+	skb_put(skb, count + 1);
+	if (copy_from_user(skb->data, user_buf, count)) {
+		kfree_skb(skb);
+		return -EFAULT;
+	}
+	skb->data[count] = 0;
+
+	cw1200_itp_handle(priv, skb);
+	consume_skb(skb);
+	return count;
+}
+
+static unsigned int cw1200_itp_poll(struct file *file, poll_table *wait)
+{
+	struct cw1200_common *priv = file->private_data;
+	struct cw1200_itp *itp = &priv->debug->itp;
+	unsigned int mask = 0;
+
+	poll_wait(file, &itp->read_wait, wait);
+
+	if (!skb_queue_empty(&itp->log_queue))
+		mask |= POLLIN | POLLRDNORM;
+
+	mask |= POLLOUT | POLLWRNORM;
+
+	return mask;
+}
+
+static int cw1200_itp_open(struct inode *inode, struct file *file)
+{
+	struct cw1200_common *priv = inode->i_private;
+	struct cw1200_itp *itp = &priv->debug->itp;
+	int ret = 0;
+
+	file->private_data = priv;
+	if (atomic_inc_return(&itp->open_count) == 1) {
+		ret = __cw1200_itp_open(priv);
+		if (ret && !atomic_dec_return(&itp->open_count))
+			__cw1200_itp_close(priv);
+	} else {
+		atomic_dec(&itp->open_count);
+		ret = -EBUSY;
+	}
+
+	return ret;
+}
+
+static int cw1200_itp_close(struct inode *inode, struct file *file)
+{
+	struct cw1200_common *priv = file->private_data;
+	struct cw1200_itp *itp = &priv->debug->itp;
+	if (!atomic_dec_return(&itp->open_count)) {
+		__cw1200_itp_close(priv);
+		wake_up(&itp->close_wait);
+	}
+	return 0;
+}
+
+static const struct file_operations fops_itp = {
+	.open = cw1200_itp_open,
+	.read = cw1200_itp_read,
+	.write = cw1200_itp_write,
+	.poll = cw1200_itp_poll,
+	.release = cw1200_itp_close,
+	.llseek = default_llseek,
+	.owner = THIS_MODULE,
+};
+
+static void cw1200_itp_fill_pattern(u8 *data, int size,
+		enum cw1200_itp_data_modes mode)
+{
+	if (size <= 0)
+		return;
+
+	switch (mode) {
+	default:
+	case ITP_DATA_ZEROS:
+		memset(data, 0x0, size);
+		break;
+	case ITP_DATA_ONES:
+		memset(data, 0xff, size);
+		break;
+	case ITP_DATA_ZERONES:
+		memset(data, 0x55, size);
+		break;
+	case ITP_DATA_RANDOM:
+		get_random_bytes(data, size);
+		break;
+	}
+	return;
+}
+
+static void cw1200_itp_tx_work(struct work_struct *work)
+{
+	struct cw1200_itp *itp = container_of(work, struct cw1200_itp,
+		    tx_work.work);
+	struct cw1200_common *priv = itp->priv;
+	atomic_set(&priv->bh_tx, 1);
+	wake_up(&priv->bh_wq);
+}
+
+static void cw1200_itp_tx_finish(struct work_struct *work)
+{
+	struct cw1200_itp *itp = container_of(work, struct cw1200_itp,
+		    tx_finish.work);
+	__cw1200_itp_tx_stop(itp->priv);
+}
+
+int cw1200_itp_init(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+
+	itp->priv = priv;
+	atomic_set(&itp->open_count, 0);
+	atomic_set(&itp->stop_tx, 0);
+	atomic_set(&itp->awaiting_confirm, 0);
+	skb_queue_head_init(&itp->log_queue);
+	spin_lock_init(&itp->tx_lock);
+	init_waitqueue_head(&itp->read_wait);
+	init_waitqueue_head(&itp->write_wait);
+	init_waitqueue_head(&itp->close_wait);
+	INIT_DELAYED_WORK(&itp->tx_work, cw1200_itp_tx_work);
+	INIT_DELAYED_WORK(&itp->tx_finish, cw1200_itp_tx_finish);
+	itp->data = NULL;
+	itp->hdr_len = WSM_TX_EXTRA_HEADROOM +
+			sizeof(struct ieee80211_hdr_3addr);
+
+	if (!debugfs_create_file("itp", S_IRUSR | S_IWUSR,
+				 priv->debug->debugfs_phy, priv, &fops_itp))
+		return -ENOMEM;
+
+	return 0;
+}
+
+void cw1200_itp_release(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+
+	wait_event_interruptible(itp->close_wait,
+				 !atomic_read(&itp->open_count));
+
+	WARN_ON(atomic_read(&itp->open_count));
+
+	skb_queue_purge(&itp->log_queue);
+	cw1200_itp_tx_stop(priv);
+}
+
+static int __cw1200_itp_open(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+
+	if (!priv->vif)
+		return -EINVAL;
+	if (priv->join_status)
+		return -EINVAL;
+	itp->saved_channel = priv->channel;
+	if (!priv->channel)
+		priv->channel = &priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
+	wsm_set_bssid_filtering(priv, false);
+	cw1200_itp_rx_reset(priv);
+	return 0;
+}
+
+static int __cw1200_itp_close(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	if (atomic_read(&itp->test_mode) == TEST_MODE_RX_TEST)
+		cw1200_itp_rx_stop(priv);
+	cw1200_itp_tx_stop(priv);
+	cw1200_disable_listening(priv);
+	cw1200_update_filtering(priv);
+	priv->channel = itp->saved_channel;
+	return 0;
+}
+
+bool cw1200_is_itp(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	return atomic_read(&itp->open_count) != 0;
+}
+
+static void cw1200_itp_rx_reset(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	itp->rx_cnt = 0;
+	itp->rx_rssi = 0;
+	itp->rx_rssi_max = -1000;
+	itp->rx_rssi_min = 1000;
+}
+
+static void cw1200_itp_rx_start(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+
+	pr_debug("[ITP] RX start, band = %d, ch = %d\n",
+		 itp->band, itp->ch);
+	atomic_set(&itp->test_mode, TEST_MODE_RX_TEST);
+	cw1200_update_listening(priv, false);
+	priv->channel = &priv->hw->
+		wiphy->bands[itp->band]->channels[itp->ch];
+	cw1200_update_listening(priv, true);
+	wsm_set_bssid_filtering(priv, false);
+}
+
+static void cw1200_itp_rx_stop(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	pr_debug("[ITP] RX stop\n");
+	atomic_set(&itp->test_mode, TEST_MODE_NO_TEST);
+	cw1200_itp_rx_reset(priv);
+}
+
+static void cw1200_itp_rx_stats(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	struct sk_buff *skb;
+	char buf[128];
+	int len, ret;
+	struct wsm_mib_counters_table counters;
+
+	ret = wsm_get_counters_table(priv, &counters);
+
+	if (ret)
+		cw1200_itp_err(priv, -EBUSY, 20);
+
+	if (!itp->rx_cnt)
+		len = snprintf(buf, sizeof(buf), "1,0,0,0,0,%d\n",
+			       counters.rx_packet_errors);
+	else
+		len = snprintf(buf, sizeof(buf), "1,%d,%ld,%d,%d,%d\n",
+			       itp->rx_cnt,
+			       itp->rx_cnt ? itp->rx_rssi / itp->rx_cnt : 0,
+			       itp->rx_rssi_min, itp->rx_rssi_max,
+			       counters.rx_packet_errors);
+
+	if (len <= 0) {
+		cw1200_itp_err(priv, -EBUSY, 21);
+		return;
+	}
+
+	skb = dev_alloc_skb(len);
+	if (!skb) {
+		cw1200_itp_err(priv, -ENOMEM, 22);
+		return;
+	}
+
+	itp->rx_cnt = 0;
+	itp->rx_rssi = 0;
+	itp->rx_rssi_max = -1000;
+	itp->rx_rssi_min = 1000;
+
+	skb_trim(skb, 0);
+	skb_put(skb, len);
+
+	memcpy(skb->data, buf, len);
+	skb_queue_tail(&itp->log_queue, skb);
+	wake_up(&itp->read_wait);
+}
+
+static void cw1200_itp_tx_start(struct cw1200_common *priv)
+{
+	struct wsm_tx *tx;
+	struct ieee80211_hdr_3addr *hdr;
+	struct cw1200_itp *itp = &priv->debug->itp;
+	struct wsm_mib_association_mode assoc_mode = {
+		.flags = WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE,
+		.preamble = itp->preamble,
+	};
+	int len;
+	u8 da_addr[6] = ITP_DEFAULT_DA_ADDR;
+
+	/* Rates index 4 and 5 are not supported */
+	if (itp->rate > 3)
+		itp->rate += 2;
+
+	pr_debug("[ITP] TX start: band = %d, ch = %d, rate = %d, preamble = %d, number = %d, data_mode = %d, interval = %d, power = %d, data_len = %d\n",
+		 itp->band, itp->ch, itp->rate, itp->preamble,
+		 itp->number, itp->data_mode, itp->interval_us,
+		 itp->power, itp->data_len);
+
+	len = itp->hdr_len + itp->data_len;
+
+	itp->data = kmalloc(len, GFP_KERNEL);
+	tx = (struct wsm_tx *)itp->data;
+	tx->hdr.len = itp->data_len + itp->hdr_len;
+	tx->hdr.id = __cpu_to_le16(0x0004 | 1 << 6);
+	tx->max_tx_rate = itp->rate;
+	tx->queue_id = 3;
+	tx->more = 0;
+	tx->flags = 0xc;
+	tx->packet_id = 0x55ff55;
+	tx->reserved = 0;
+	tx->expire_time = 1;
+
+	if (itp->preamble == ITP_PREAMBLE_GREENFIELD)
+		tx->ht_tx_parameters = WSM_HT_TX_GREENFIELD;
+	else if (itp->preamble == ITP_PREAMBLE_MIXED)
+		tx->ht_tx_parameters = WSM_HT_TX_MIXED;
+
+	hdr = (struct ieee80211_hdr_3addr *)&itp->data[sizeof(struct wsm_tx)];
+	memset(hdr, 0, sizeof(*hdr));
+	hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |	IEEE80211_FCTL_TODS);
+	memcpy(hdr->addr1, da_addr, ETH_ALEN);
+	memcpy(hdr->addr2, priv->vif->addr, ETH_ALEN);
+	memcpy(hdr->addr3, da_addr, ETH_ALEN);
+
+	cw1200_itp_fill_pattern(&itp->data[itp->hdr_len],
+				itp->data_len, itp->data_mode);
+
+	cw1200_update_listening(priv, false);
+	priv->channel = &priv->hw->wiphy->bands[itp->band]->channels[itp->ch];
+	WARN_ON(wsm_set_output_power(priv, itp->power));
+	if (itp->preamble == ITP_PREAMBLE_SHORT ||
+	    itp->preamble == ITP_PREAMBLE_LONG)
+		WARN_ON(wsm_set_association_mode(priv,
+						 &assoc_mode));
+	wsm_set_bssid_filtering(priv, false);
+	cw1200_update_listening(priv, true);
+
+	spin_lock_bh(&itp->tx_lock);
+	atomic_set(&itp->test_mode, TEST_MODE_TX_TEST);
+	atomic_set(&itp->awaiting_confirm, 0);
+	atomic_set(&itp->stop_tx, 0);
+	atomic_set(&priv->bh_tx, 1);
+	ktime_get_ts(&itp->last_sent);
+	wake_up(&priv->bh_wq);
+	spin_unlock_bh(&itp->tx_lock);
+}
+
+void __cw1200_itp_tx_stop(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	spin_lock_bh(&itp->tx_lock);
+	kfree(itp->data);
+	itp->data = NULL;
+	atomic_set(&itp->test_mode, TEST_MODE_NO_TEST);
+	spin_unlock_bh(&itp->tx_lock);
+}
+
+static void cw1200_itp_tx_stop(struct cw1200_common *priv)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	pr_debug("[ITP] TX stop\n");
+	atomic_set(&itp->stop_tx, 1);
+	flush_workqueue(priv->workqueue);
+
+	/* time for FW to confirm all tx requests */
+	msleep(500);
+
+	__cw1200_itp_tx_stop(priv);
+}
+
+static int cw1200_print_fw_version(struct cw1200_common *priv,
+				   u8 *buf, size_t len)
+{
+	return snprintf(buf, len, "%s %d.%d",
+			cw1200_fw_types[priv->wsm_caps.fw_type],
+			priv->wsm_caps.fw_ver,
+			priv->wsm_caps.fw_build);
+}
+
+static void cw1200_itp_get_version(struct cw1200_common *priv,
+		enum cw1200_itp_version_type type)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	struct sk_buff *skb;
+	char buf[ITP_BUF_SIZE];
+	size_t size = 0;
+	int len;
+	pr_debug("[ITP] print %s version\n",
+		 type == ITP_CHIP_ID ? "chip" : "firmware");
+
+	len = snprintf(buf, ITP_BUF_SIZE, "2,");
+	if (len <= 0) {
+		cw1200_itp_err(priv, -EINVAL, 40);
+		return;
+	}
+	size += len;
+
+	switch (type) {
+	case ITP_CHIP_ID:
+		len = cw1200_print_fw_version(priv, buf+size,
+				ITP_BUF_SIZE - size);
+
+		if (len <= 0) {
+			cw1200_itp_err(priv, -EINVAL, 41);
+			return;
+		}
+		size += len;
+		break;
+	case ITP_FW_VER:
+		len = snprintf(buf+size, ITP_BUF_SIZE - size,
+				"%d.%d", priv->wsm_caps.hw_id,
+				priv->wsm_caps.hw_subid);
+		if (len <= 0) {
+			cw1200_itp_err(priv, -EINVAL, 42);
+			return;
+		}
+		size += len;
+		break;
+	default:
+		cw1200_itp_err(priv, -EINVAL, 43);
+		break;
+	}
+
+	len = snprintf(buf+size, ITP_BUF_SIZE-size, "\n");
+	if (len <= 0) {
+		cw1200_itp_err(priv, -EINVAL, 44);
+		return;
+	}
+	size += len;
+
+	skb = dev_alloc_skb(size);
+	if (!skb) {
+		cw1200_itp_err(priv, -ENOMEM, 45);
+		return;
+	}
+
+	skb_trim(skb, 0);
+	skb_put(skb, size);
+
+	memcpy(skb->data, buf, size);
+	skb_queue_tail(&itp->log_queue, skb);
+	wake_up(&itp->read_wait);
+}
+
+int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
+		size_t *tx_len, int *burst)
+{
+	struct cw1200_itp *itp;
+	struct timespec now;
+	int time_left_us;
+
+	if (!priv->debug)
+		return 0;
+
+	itp	= &priv->debug->itp;
+
+	if (!itp)
+		return 0;
+
+	spin_lock_bh(&itp->tx_lock);
+	if (atomic_read(&itp->test_mode) != TEST_MODE_TX_TEST)
+		goto out;
+
+	if (atomic_read(&itp->stop_tx))
+		goto out;
+
+	if (itp->number == 0) {
+		atomic_set(&itp->stop_tx, 1);
+		queue_delayed_work(priv->workqueue, &itp->tx_finish, HZ/10);
+		goto out;
+	}
+
+	if (!itp->data)
+		goto out;
+
+	if (priv->hw_bufs_used >= 2) {
+		if (!atomic_read(&priv->bh_rx))
+			atomic_set(&priv->bh_rx, 1);
+		atomic_set(&priv->bh_tx, 1);
+		goto out;
+	}
+
+	ktime_get_ts(&now);
+	time_left_us = (itp->last_sent.tv_sec -	now.tv_sec)*1000000 +
+		(itp->last_sent.tv_nsec - now.tv_nsec)/1000 +
+		itp->interval_us;
+
+	if (time_left_us > ITP_TIME_THRES_US) {
+		queue_delayed_work(priv->workqueue, &itp->tx_work,
+				   ITP_US_TO_MS(time_left_us)*HZ/1000);
+		goto out;
+	}
+
+	if (time_left_us > 50)
+		udelay(time_left_us);
+
+	if (itp->number > 0)
+		itp->number--;
+
+	*data = itp->data;
+	*tx_len = itp->data_len + itp->hdr_len;
+
+	if (itp->data_mode == ITP_DATA_RANDOM)
+		cw1200_itp_fill_pattern(&itp->data[itp->hdr_len],
+					itp->data_len, itp->data_mode);
+	*burst = 2;
+	atomic_set(&priv->bh_tx, 1);
+	ktime_get_ts(&itp->last_sent);
+	atomic_add(1, &itp->awaiting_confirm);
+	spin_unlock_bh(&itp->tx_lock);
+	return 1;
+
+out:
+	spin_unlock_bh(&itp->tx_lock);
+	return 0;
+}
+
+bool cw1200_itp_rxed(struct cw1200_common *priv, struct sk_buff *skb)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	struct ieee80211_rx_status *rx = IEEE80211_SKB_RXCB(skb);
+	int signal;
+
+	if (atomic_read(&itp->test_mode) != TEST_MODE_RX_TEST)
+		return cw1200_is_itp(priv);
+	if (rx->freq != priv->channel->center_freq)
+		return true;
+
+	signal = rx->signal;
+	itp->rx_cnt++;
+	itp->rx_rssi += signal;
+	if (itp->rx_rssi_min > rx->signal)
+		itp->rx_rssi_min = rx->signal;
+	if (itp->rx_rssi_max < rx->signal)
+		itp->rx_rssi_max = rx->signal;
+
+	return true;
+}
+
+void cw1200_itp_wake_up_tx(struct cw1200_common *priv)
+{
+	wake_up(&priv->debug->itp.write_wait);
+}
+
+bool cw1200_itp_tx_running(struct cw1200_common *priv)
+{
+	if (atomic_read(&priv->debug->itp.awaiting_confirm) ||
+	    atomic_read(&priv->debug->itp.test_mode) ==
+	    TEST_MODE_TX_TEST) {
+		atomic_sub(1, &priv->debug->itp.awaiting_confirm);
+		return true;
+	}
+	return false;
+}
+
+static void cw1200_itp_handle(struct cw1200_common *priv,
+			      struct sk_buff *skb)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	const struct wiphy *wiphy = priv->hw->wiphy;
+	int cmd;
+	int ret;
+
+	pr_debug("[ITP] <<< %s", skb->data);
+	if (sscanf(skb->data, "%d", &cmd) != 1) {
+		cw1200_itp_err(priv, -EINVAL, 1);
+		return;
+	}
+
+	switch (cmd) {
+	case 1: /* RX test */
+		if (atomic_read(&itp->test_mode)) {
+			cw1200_itp_err(priv, -EBUSY, 0);
+			return;
+		}
+		ret = sscanf(skb->data, "%d,%d,%d",
+				&cmd, &itp->band, &itp->ch);
+		if (ret != 3) {
+			cw1200_itp_err(priv, -EINVAL, ret + 1);
+			return;
+		}
+		if (itp->band >= 2) {
+			cw1200_itp_err(priv, -EINVAL, 2);
+		} else if (!wiphy->bands[itp->band]) {
+			cw1200_itp_err(priv, -EINVAL, 2);
+		} else if (itp->ch >= wiphy->bands[itp->band]->n_channels) {
+			cw1200_itp_err(priv, -EINVAL, 3);
+		} else {
+			cw1200_itp_rx_stats(priv);
+			cw1200_itp_rx_start(priv);
+		}
+		break;
+	case 2: /* RX stat */
+		cw1200_itp_rx_stats(priv);
+		break;
+	case 3: /* RX/TX stop */
+		if (atomic_read(&itp->test_mode) == TEST_MODE_RX_TEST) {
+			cw1200_itp_rx_stats(priv);
+			cw1200_itp_rx_stop(priv);
+		} else if (atomic_read(&itp->test_mode) == TEST_MODE_TX_TEST) {
+			cw1200_itp_tx_stop(priv);
+		} else {
+			cw1200_itp_err(priv, -EBUSY, 0);
+		}
+		break;
+	case 4: /* TX start */
+		if (atomic_read(&itp->test_mode) != TEST_MODE_NO_TEST) {
+			cw1200_itp_err(priv, -EBUSY, 0);
+			return;
+		}
+		ret = sscanf(skb->data, "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d",
+				&cmd, &itp->band, &itp->ch, &itp->rate,
+				&itp->preamble, &itp->number, &itp->data_mode,
+				&itp->interval_us, &itp->power, &itp->data_len);
+		if (ret != 10) {
+			cw1200_itp_err(priv, -EINVAL, ret + 1);
+			return;
+		}
+		if (itp->band >= 2) {
+			cw1200_itp_err(priv, -EINVAL, 2);
+		} else if (!wiphy->bands[itp->band]) {
+			cw1200_itp_err(priv, -EINVAL, 2);
+		} else if (itp->ch >= wiphy->bands[itp->band]->n_channels) {
+			cw1200_itp_err(priv, -EINVAL, 3);
+		} else if (itp->rate >= 20) {
+			cw1200_itp_err(priv, -EINVAL, 4);
+		} else if (itp->preamble >= ITP_PREAMBLE_MAX) {
+			cw1200_itp_err(priv, -EINVAL, 5);
+		} else if (itp->data_mode >= ITP_DATA_MAX_MODE) {
+			cw1200_itp_err(priv, -EINVAL, 7);
+		} else if (itp->data_len < ITP_MIN_DATA_SIZE ||
+			   itp->data_len > (priv->wsm_caps.input_buffer_size - itp->hdr_len)) {
+			cw1200_itp_err(priv, -EINVAL, 8);
+		} else {
+		    cw1200_itp_tx_start(priv);
+		}
+		break;
+	case 5:
+		cw1200_itp_get_version(priv, ITP_CHIP_ID);
+		break;
+	case 6:
+		cw1200_itp_get_version(priv, ITP_FW_VER);
+		break;
+	}
+}
+
+static void cw1200_itp_err(struct cw1200_common *priv,
+			   int err, int arg)
+{
+	struct cw1200_itp *itp = &priv->debug->itp;
+	struct sk_buff *skb;
+	static char buf[255];
+	int len;
+
+	len = snprintf(buf, sizeof(buf), "%d,%d\n",
+		err, arg);
+	if (len <= 0)
+		return;
+
+	skb = dev_alloc_skb(len);
+	if (!skb)
+		return;
+
+	skb_trim(skb, 0);
+	skb_put(skb, len);
+
+	memcpy(skb->data, buf, len);
+	skb_queue_tail(&itp->log_queue, skb);
+	wake_up(&itp->read_wait);
+
+	len = sprint_symbol(buf,
+			(unsigned long)__builtin_return_address(0));
+	if (len <= 0)
+		return;
+	pr_debug("[ITP] error %d,%d from %s\n",
+		 err, arg, buf);
+}
diff --git a/drivers/net/wireless/cw1200/itp.h b/drivers/net/wireless/cw1200/itp.h
new file mode 100644
index 0000000..1e9dfb7
--- /dev/null
+++ b/drivers/net/wireless/cw1200/itp.h
@@ -0,0 +1,144 @@
+/*
+ * ITP code for ST-Ericsson CW1200 mac80211 driver
+ *
+ * Copyright (c) 2011, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_ITP_H_INCLUDED
+#define CW1200_ITP_H_INCLUDED
+
+struct cw200_common;
+struct wsm_tx_confirm;
+struct dentry;
+
+#ifdef CONFIG_CW1200_ITP
+
+/*extern*/ struct ieee80211_channel;
+
+#define TEST_MODE_NO_TEST	(0)
+#define TEST_MODE_RX_TEST	(1)
+#define TEST_MODE_TX_TEST	(2)
+#define ITP_DEFAULT_DA_ADDR {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}
+#define ITP_MIN_DATA_SIZE 6
+#define ITP_MAX_DATA_SIZE 1600
+#define ITP_TIME_THRES_US 10000
+#define ITP_US_TO_MS(x) ((x)/1000)
+#define ITP_MS_TO_US(x) ((x)*1000)
+#define ITP_BUF_SIZE 255
+
+
+enum cw1200_itp_data_modes {
+	ITP_DATA_ZEROS,
+	ITP_DATA_ONES,
+	ITP_DATA_ZERONES,
+	ITP_DATA_RANDOM,
+	ITP_DATA_MAX_MODE,
+};
+
+enum cw1200_itp_version_type {
+	ITP_CHIP_ID,
+	ITP_FW_VER,
+};
+
+enum cw1200_itp_preamble_type {
+	ITP_PREAMBLE_LONG,
+	ITP_PREAMBLE_SHORT,
+	ITP_PREAMBLE_OFDM,
+	ITP_PREAMBLE_MIXED,
+	ITP_PREAMBLE_GREENFIELD,
+	ITP_PREAMBLE_MAX,
+};
+
+
+struct cw1200_itp {
+	struct cw1200_common	*priv;
+	atomic_t		open_count;
+	atomic_t		awaiting_confirm;
+	struct sk_buff_head	log_queue;
+	wait_queue_head_t	read_wait;
+	wait_queue_head_t	write_wait;
+	wait_queue_head_t	close_wait;
+	struct ieee80211_channel *saved_channel;
+	atomic_t		stop_tx;
+	struct delayed_work	tx_work;
+	struct delayed_work	tx_finish;
+	spinlock_t		tx_lock;
+	struct timespec		last_sent;
+	atomic_t		test_mode;
+	int			rx_cnt;
+	long			rx_rssi;
+	int			rx_rssi_max;
+	int			rx_rssi_min;
+	unsigned		band;
+	unsigned		ch;
+	unsigned		rate;
+	unsigned		preamble;
+	unsigned int		number;
+	unsigned		data_mode;
+	int			interval_us;
+	int			power;
+	u8			*data;
+	int			hdr_len;
+	int			data_len;
+};
+
+int cw1200_itp_init(struct cw1200_common *priv);
+void cw1200_itp_release(struct cw1200_common *priv);
+
+bool cw1200_is_itp(struct cw1200_common *priv);
+bool cw1200_itp_rxed(struct cw1200_common *priv, struct sk_buff *skb);
+void cw1200_itp_wake_up_tx(struct cw1200_common *priv);
+int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
+		size_t *tx_len, int *burst);
+bool cw1200_itp_tx_running(struct cw1200_common *priv);
+
+#else /* CONFIG_CW1200_ITP */
+
+static inline int cw1200_itp_init(struct cw1200_common *priv)
+{
+	return 0;
+}
+
+static inline void cw1200_itp_release(struct cw1200_common *priv)
+{
+}
+
+static inline bool cw1200_is_itp(struct cw1200_common *priv)
+{
+	return false;
+}
+
+static inline bool cw1200_itp_rxed(struct cw1200_common *priv,
+				   struct sk_buff *skb)
+{
+	return false;
+}
+
+
+static inline void cw1200_itp_consume_txed(struct cw1200_common *priv)
+{
+}
+
+static inline void cw1200_itp_wake_up_tx(struct cw1200_common *priv)
+{
+}
+
+static inline int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
+				    size_t *tx_len, int *burst)
+{
+	return 0;
+}
+
+static inline bool cw1200_itp_tx_running(struct cw1200_common *priv)
+{
+	return false;
+}
+
+#endif /* CONFIG_CW1200_ITP */
+
+#endif /* CW1200_ITP_H_INCLUDED */
diff --git a/drivers/net/wireless/cw1200/main.c b/drivers/net/wireless/cw1200/main.c
new file mode 100644
index 0000000..8426d3d
--- /dev/null
+++ b/drivers/net/wireless/cw1200/main.c
@@ -0,0 +1,618 @@
+/*
+ * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on:
+ * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
+ * Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * Based on:
+ * - the islsm (softmac prism54) driver, which is:
+ *   Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ * - stlc45xx driver
+ *   Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <linux/vmalloc.h>
+#include <linux/random.h>
+#include <linux/sched.h>
+#include <net/mac80211.h>
+
+#include "cw1200.h"
+#include "txrx.h"
+#include "sbus.h"
+#include "fwio.h"
+#include "hwio.h"
+#include "bh.h"
+#include "sta.h"
+#include "scan.h"
+#include "debug.h"
+#include "pm.h"
+
+MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
+MODULE_DESCRIPTION("Softmac ST-Ericsson CW1200 common code");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("cw1200_core");
+
+/* Accept MAC address of the form macaddr=0x00,0x80,0xE1,0x30,0x40,0x50 */
+static u8 cw1200_mac_template[ETH_ALEN] = {0x02, 0x80, 0xe1, 0x00, 0x00, 0x00};
+module_param_array_named(macaddr, cw1200_mac_template, byte, NULL, S_IRUGO);
+MODULE_PARM_DESC(macaddr, "Override platform_data MAC address");
+
+static char *cw1200_sdd_path;
+module_param(cw1200_sdd_path, charp, 0644);
+MODULE_PARM_DESC(cw1200_sdd_path, "Override platform_data SDD file");
+static int cw1200_refclk;
+module_param(cw1200_refclk, int, 0644);
+MODULE_PARM_DESC(cw1200_refclk, "Override platform_data reference clock");
+
+int cw1200_power_mode = wsm_power_mode_quiescent;
+module_param(cw1200_power_mode, int, 0644);
+MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode.  0 == active, 1 == doze, 2 == quiescent (default)");
+
+#ifdef CONFIG_CW1200_ETF
+int etf_mode;
+module_param(etf_mode, int, 0644);
+MODULE_PARM_DESC(etf_mode, "Enable EngineeringTestingFramework operation");
+#endif
+
+#define RATETAB_ENT(_rate, _rateid, _flags)		\
+	{						\
+		.bitrate	= (_rate),		\
+		.hw_value	= (_rateid),		\
+		.flags		= (_flags),		\
+	}
+
+static struct ieee80211_rate cw1200_rates[] = {
+	RATETAB_ENT(10,  0,   0),
+	RATETAB_ENT(20,  1,   0),
+	RATETAB_ENT(55,  2,   0),
+	RATETAB_ENT(110, 3,   0),
+	RATETAB_ENT(60,  6,  0),
+	RATETAB_ENT(90,  7,  0),
+	RATETAB_ENT(120, 8,  0),
+	RATETAB_ENT(180, 9,  0),
+	RATETAB_ENT(240, 10, 0),
+	RATETAB_ENT(360, 11, 0),
+	RATETAB_ENT(480, 12, 0),
+	RATETAB_ENT(540, 13, 0),
+};
+
+static struct ieee80211_rate cw1200_mcs_rates[] = {
+	RATETAB_ENT(65,  14, IEEE80211_TX_RC_MCS),
+	RATETAB_ENT(130, 15, IEEE80211_TX_RC_MCS),
+	RATETAB_ENT(195, 16, IEEE80211_TX_RC_MCS),
+	RATETAB_ENT(260, 17, IEEE80211_TX_RC_MCS),
+	RATETAB_ENT(390, 18, IEEE80211_TX_RC_MCS),
+	RATETAB_ENT(520, 19, IEEE80211_TX_RC_MCS),
+	RATETAB_ENT(585, 20, IEEE80211_TX_RC_MCS),
+	RATETAB_ENT(650, 21, IEEE80211_TX_RC_MCS),
+};
+
+#define cw1200_a_rates		(cw1200_rates + 4)
+#define cw1200_a_rates_size	(ARRAY_SIZE(cw1200_rates) - 4)
+#define cw1200_g_rates		(cw1200_rates + 0)
+#define cw1200_g_rates_size	(ARRAY_SIZE(cw1200_rates))
+#define cw1200_n_rates		(cw1200_mcs_rates)
+#define cw1200_n_rates_size	(ARRAY_SIZE(cw1200_mcs_rates))
+
+
+#define CHAN2G(_channel, _freq, _flags) {			\
+	.band			= IEEE80211_BAND_2GHZ,		\
+	.center_freq		= (_freq),			\
+	.hw_value		= (_channel),			\
+	.flags			= (_flags),			\
+	.max_antenna_gain	= 0,				\
+	.max_power		= 30,				\
+}
+
+#define CHAN5G(_channel, _flags) {				\
+	.band			= IEEE80211_BAND_5GHZ,		\
+	.center_freq	= 5000 + (5 * (_channel)),		\
+	.hw_value		= (_channel),			\
+	.flags			= (_flags),			\
+	.max_antenna_gain	= 0,				\
+	.max_power		= 30,				\
+}
+
+static struct ieee80211_channel cw1200_2ghz_chantable[] = {
+	CHAN2G(1, 2412, 0),
+	CHAN2G(2, 2417, 0),
+	CHAN2G(3, 2422, 0),
+	CHAN2G(4, 2427, 0),
+	CHAN2G(5, 2432, 0),
+	CHAN2G(6, 2437, 0),
+	CHAN2G(7, 2442, 0),
+	CHAN2G(8, 2447, 0),
+	CHAN2G(9, 2452, 0),
+	CHAN2G(10, 2457, 0),
+	CHAN2G(11, 2462, 0),
+	CHAN2G(12, 2467, 0),
+	CHAN2G(13, 2472, 0),
+	CHAN2G(14, 2484, 0),
+};
+
+static struct ieee80211_channel cw1200_5ghz_chantable[] = {
+	CHAN5G(34, 0),		CHAN5G(36, 0),
+	CHAN5G(38, 0),		CHAN5G(40, 0),
+	CHAN5G(42, 0),		CHAN5G(44, 0),
+	CHAN5G(46, 0),		CHAN5G(48, 0),
+	CHAN5G(52, 0),		CHAN5G(56, 0),
+	CHAN5G(60, 0),		CHAN5G(64, 0),
+	CHAN5G(100, 0),		CHAN5G(104, 0),
+	CHAN5G(108, 0),		CHAN5G(112, 0),
+	CHAN5G(116, 0),		CHAN5G(120, 0),
+	CHAN5G(124, 0),		CHAN5G(128, 0),
+	CHAN5G(132, 0),		CHAN5G(136, 0),
+	CHAN5G(140, 0),		CHAN5G(149, 0),
+	CHAN5G(153, 0),		CHAN5G(157, 0),
+	CHAN5G(161, 0),		CHAN5G(165, 0),
+	CHAN5G(184, 0),		CHAN5G(188, 0),
+	CHAN5G(192, 0),		CHAN5G(196, 0),
+	CHAN5G(200, 0),		CHAN5G(204, 0),
+	CHAN5G(208, 0),		CHAN5G(212, 0),
+	CHAN5G(216, 0),
+};
+
+static struct ieee80211_supported_band cw1200_band_2ghz = {
+	.channels = cw1200_2ghz_chantable,
+	.n_channels = ARRAY_SIZE(cw1200_2ghz_chantable),
+	.bitrates = cw1200_g_rates,
+	.n_bitrates = cw1200_g_rates_size,
+	.ht_cap = {
+		.cap = IEEE80211_HT_CAP_GRN_FLD |
+			(1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
+			IEEE80211_HT_CAP_MAX_AMSDU,
+		.ht_supported = 1,
+		.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
+		.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
+		.mcs = {
+			.rx_mask[0] = 0xFF,
+			.rx_highest = __cpu_to_le16(0x41),
+			.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+		},
+	},
+};
+
+static struct ieee80211_supported_band cw1200_band_5ghz = {
+	.channels = cw1200_5ghz_chantable,
+	.n_channels = ARRAY_SIZE(cw1200_5ghz_chantable),
+	.bitrates = cw1200_a_rates,
+	.n_bitrates = cw1200_a_rates_size,
+	.ht_cap = {
+		.cap = IEEE80211_HT_CAP_GRN_FLD |
+			(1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) |
+			IEEE80211_HT_CAP_MAX_AMSDU,
+		.ht_supported = 1,
+		.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
+		.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE,
+		.mcs = {
+			.rx_mask[0] = 0xFF,
+			.rx_highest = __cpu_to_le16(0x41),
+			.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+		},
+	},
+};
+
+static const unsigned long cw1200_ttl[] = {
+	1 * HZ,	/* VO */
+	2 * HZ,	/* VI */
+	5 * HZ, /* BE */
+	10 * HZ	/* BK */
+};
+
+static const struct ieee80211_ops cw1200_ops = {
+	.start			= cw1200_start,
+	.stop			= cw1200_stop,
+	.add_interface		= cw1200_add_interface,
+	.remove_interface	= cw1200_remove_interface,
+	.change_interface	= cw1200_change_interface,
+	.tx			= cw1200_tx,
+	.hw_scan		= cw1200_hw_scan,
+	.set_tim		= cw1200_set_tim,
+	.sta_notify		= cw1200_sta_notify,
+	.sta_add		= cw1200_sta_add,
+	.sta_remove		= cw1200_sta_remove,
+	.set_key		= cw1200_set_key,
+	.set_rts_threshold	= cw1200_set_rts_threshold,
+	.config			= cw1200_config,
+	.bss_info_changed	= cw1200_bss_info_changed,
+	.prepare_multicast	= cw1200_prepare_multicast,
+	.configure_filter	= cw1200_configure_filter,
+	.conf_tx		= cw1200_conf_tx,
+	.get_stats		= cw1200_get_stats,
+	.ampdu_action		= cw1200_ampdu_action,
+	.flush			= cw1200_flush,
+	.suspend		= cw1200_wow_suspend,
+	.resume			= cw1200_wow_resume,
+	/* Intentionally not offloaded:					*/
+	/*.channel_switch	= cw1200_channel_switch,		*/
+	/*.remain_on_channel	= cw1200_remain_on_channel,		*/
+	/*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel,	*/
+};
+
+int cw1200_ba_rx_tids = -1;
+int cw1200_ba_tx_tids = -1;
+module_param(cw1200_ba_rx_tids, int, 0644);
+module_param(cw1200_ba_tx_tids, int, 0644);
+MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
+MODULE_PARM_DESC(cw1200_ba_tx_tids, "Block ACK TX TIDs");
+
+static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
+						const bool have_5ghz)
+{
+	int i, band;
+	struct ieee80211_hw *hw;
+	struct cw1200_common *priv;
+
+	hw = ieee80211_alloc_hw(sizeof(struct cw1200_common), &cw1200_ops);
+	if (!hw)
+		return NULL;
+
+	priv = hw->priv;
+	priv->hw = hw;
+	priv->hw_type = -1;
+	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+	priv->rates = cw1200_rates; /* TODO: fetch from FW */
+	priv->mcs_rates = cw1200_n_rates;
+	if (cw1200_ba_rx_tids != -1)
+		priv->ba_rx_tid_mask = cw1200_ba_rx_tids;
+	else
+		priv->ba_rx_tid_mask = 0xFF; /* Enable RX BLKACK for all TIDs */
+	if (cw1200_ba_tx_tids != -1)
+		priv->ba_tx_tid_mask = cw1200_ba_tx_tids;
+	else
+		priv->ba_tx_tid_mask = 0xff; /* Enable TX BLKACK for all TIDs */
+
+	hw->flags = IEEE80211_HW_SIGNAL_DBM |
+		    IEEE80211_HW_SUPPORTS_PS |
+		    IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
+		    IEEE80211_HW_REPORTS_TX_ACK_STATUS |
+		    IEEE80211_HW_SUPPORTS_UAPSD |
+		    IEEE80211_HW_CONNECTION_MONITOR |
+		    IEEE80211_HW_AMPDU_AGGREGATION |
+		    IEEE80211_HW_TX_AMPDU_SETUP_IN_HW |
+		    IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC;
+
+	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+					  BIT(NL80211_IFTYPE_ADHOC) |
+					  BIT(NL80211_IFTYPE_AP) |
+					  BIT(NL80211_IFTYPE_MESH_POINT) |
+					  BIT(NL80211_IFTYPE_P2P_CLIENT) |
+					  BIT(NL80211_IFTYPE_P2P_GO);
+
+	/* Support only for limited wowlan functionalities */
+	hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY |
+		WIPHY_WOWLAN_DISCONNECT;
+	hw->wiphy->wowlan.n_patterns = 0;
+
+	hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
+
+	hw->channel_change_time = 1000;	/* TODO: find actual value */
+	hw->queues = 4;
+
+	priv->rts_threshold = -1;
+
+	hw->max_rates = 8;
+	hw->max_rate_tries = 15;
+	hw->extra_tx_headroom = WSM_TX_EXTRA_HEADROOM +
+		8;  /* TKIP IV */
+
+	hw->sta_data_size = sizeof(struct cw1200_sta_priv);
+
+	hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &cw1200_band_2ghz;
+	if (have_5ghz)
+		hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &cw1200_band_5ghz;
+
+	/* Channel params have to be cleared before registering wiphy again */
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		struct ieee80211_supported_band *sband = hw->wiphy->bands[band];
+		if (!sband)
+			continue;
+		for (i = 0; i < sband->n_channels; i++) {
+			sband->channels[i].flags = 0;
+			sband->channels[i].max_antenna_gain = 0;
+			sband->channels[i].max_power = 30;
+		}
+	}
+
+	hw->wiphy->max_scan_ssids = 2;
+	hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
+
+	if (macaddr)
+		SET_IEEE80211_PERM_ADDR(hw, (u8 *)macaddr);
+	else
+		SET_IEEE80211_PERM_ADDR(hw, cw1200_mac_template);
+
+	/* Fix up mac address if necessary */
+	if (hw->wiphy->perm_addr[3] == 0 &&
+	    hw->wiphy->perm_addr[4] == 0 &&
+	    hw->wiphy->perm_addr[5] == 0) {
+		get_random_bytes(&hw->wiphy->perm_addr[3], 3);
+	}
+
+	mutex_init(&priv->wsm_cmd_mux);
+	mutex_init(&priv->conf_mutex);
+	priv->workqueue = create_singlethread_workqueue("cw1200_wq");
+	sema_init(&priv->scan.lock, 1);
+	INIT_WORK(&priv->scan.work, cw1200_scan_work);
+	INIT_DELAYED_WORK(&priv->scan.probe_work, cw1200_probe_work);
+	INIT_DELAYED_WORK(&priv->scan.timeout, cw1200_scan_timeout);
+	INIT_DELAYED_WORK(&priv->clear_recent_scan_work,
+			  cw1200_clear_recent_scan_work);
+	INIT_DELAYED_WORK(&priv->join_timeout, cw1200_join_timeout);
+	INIT_WORK(&priv->unjoin_work, cw1200_unjoin_work);
+	INIT_WORK(&priv->join_complete_work, cw1200_join_complete_work);
+	INIT_WORK(&priv->wep_key_work, cw1200_wep_key_work);
+	INIT_WORK(&priv->tx_policy_upload_work, tx_policy_upload_work);
+	spin_lock_init(&priv->event_queue_lock);
+	INIT_LIST_HEAD(&priv->event_queue);
+	INIT_WORK(&priv->event_handler, cw1200_event_handler);
+	INIT_DELAYED_WORK(&priv->bss_loss_work, cw1200_bss_loss_work);
+	INIT_WORK(&priv->bss_params_work, cw1200_bss_params_work);
+	spin_lock_init(&priv->bss_loss_lock);
+	spin_lock_init(&priv->ps_state_lock);
+	INIT_WORK(&priv->set_cts_work, cw1200_set_cts_work);
+	INIT_WORK(&priv->set_tim_work, cw1200_set_tim_work);
+	INIT_WORK(&priv->multicast_start_work, cw1200_multicast_start_work);
+	INIT_WORK(&priv->multicast_stop_work, cw1200_multicast_stop_work);
+	INIT_WORK(&priv->link_id_work, cw1200_link_id_work);
+	INIT_DELAYED_WORK(&priv->link_id_gc_work, cw1200_link_id_gc_work);
+	INIT_WORK(&priv->linkid_reset_work, cw1200_link_id_reset);
+	INIT_WORK(&priv->update_filtering_work, cw1200_update_filtering_work);
+	INIT_WORK(&priv->set_beacon_wakeup_period_work,
+		  cw1200_set_beacon_wakeup_period_work);
+	init_timer(&priv->mcast_timeout);
+	priv->mcast_timeout.data = (unsigned long)priv;
+	priv->mcast_timeout.function = cw1200_mcast_timeout;
+
+	if (cw1200_queue_stats_init(&priv->tx_queue_stats,
+				    CW1200_LINK_ID_MAX,
+				    cw1200_skb_dtor,
+				    priv)) {
+		ieee80211_free_hw(hw);
+		return NULL;
+	}
+
+	for (i = 0; i < 4; ++i) {
+		if (cw1200_queue_init(&priv->tx_queue[i],
+				      &priv->tx_queue_stats, i, 16,
+				      cw1200_ttl[i])) {
+			for (; i > 0; i--)
+				cw1200_queue_deinit(&priv->tx_queue[i - 1]);
+			cw1200_queue_stats_deinit(&priv->tx_queue_stats);
+			ieee80211_free_hw(hw);
+			return NULL;
+		}
+	}
+
+	init_waitqueue_head(&priv->channel_switch_done);
+	init_waitqueue_head(&priv->wsm_cmd_wq);
+	init_waitqueue_head(&priv->wsm_startup_done);
+	init_waitqueue_head(&priv->ps_mode_switch_done);
+	wsm_buf_init(&priv->wsm_cmd_buf);
+	spin_lock_init(&priv->wsm_cmd.lock);
+	priv->wsm_cmd.done = 1;
+	tx_policy_init(priv);
+
+	return hw;
+}
+
+static int cw1200_register_common(struct ieee80211_hw *dev)
+{
+	struct cw1200_common *priv = dev->priv;
+	int err;
+
+#ifdef CONFIG_CW1200_ETF
+	if (etf_mode)
+		goto done;
+#endif
+
+	err = cw1200_pm_init(&priv->pm_state, priv);
+	if (err) {
+		pr_err("Cannot init PM. (%d).\n",
+		       err);
+		return err;
+	}
+
+	err = ieee80211_register_hw(dev);
+	if (err) {
+		pr_err("Cannot register device (%d).\n",
+		       err);
+		cw1200_pm_deinit(&priv->pm_state);
+		return err;
+	}
+
+#ifdef CONFIG_CW1200_ETF
+done:
+#endif
+	cw1200_debug_init(priv);
+
+	pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
+	return 0;
+}
+
+static void cw1200_free_common(struct ieee80211_hw *dev)
+{
+	ieee80211_free_hw(dev);
+}
+
+static void cw1200_unregister_common(struct ieee80211_hw *dev)
+{
+	struct cw1200_common *priv = dev->priv;
+	int i;
+
+#ifdef CONFIG_CW1200_ETF
+	if (!etf_mode) {
+#endif
+		ieee80211_unregister_hw(dev);
+#ifdef CONFIG_CW1200_ETF
+	}
+#endif
+
+	del_timer_sync(&priv->mcast_timeout);
+	cw1200_unregister_bh(priv);
+
+	cw1200_debug_release(priv);
+
+	mutex_destroy(&priv->conf_mutex);
+
+	wsm_buf_deinit(&priv->wsm_cmd_buf);
+
+	destroy_workqueue(priv->workqueue);
+	priv->workqueue = NULL;
+
+	if (priv->sdd) {
+		release_firmware(priv->sdd);
+		priv->sdd = NULL;
+	}
+
+	for (i = 0; i < 4; ++i)
+		cw1200_queue_deinit(&priv->tx_queue[i]);
+
+	cw1200_queue_stats_deinit(&priv->tx_queue_stats);
+	cw1200_pm_deinit(&priv->pm_state);
+}
+
+/* Clock is in KHz */
+u32 cw1200_dpll_from_clk(u16 clk_khz)
+{
+	switch (clk_khz) {
+	case 0x32C8: /* 13000 KHz */
+		return 0x1D89D241;
+	case 0x3E80: /* 16000 KHz */
+		return 0x000001E1;
+	case 0x41A0: /* 16800 KHz */
+		return 0x124931C1;
+	case 0x4B00: /* 19200 KHz */
+		return 0x00000191;
+	case 0x5DC0: /* 24000 KHz */
+		return 0x00000141;
+	case 0x6590: /* 26000 KHz */
+		return 0x0EC4F121;
+	case 0x8340: /* 33600 KHz */
+		return 0x092490E1;
+	case 0x9600: /* 38400 KHz */
+		return 0x100010C1;
+	case 0x9C40: /* 40000 KHz */
+		return 0x000000C1;
+	case 0xBB80: /* 48000 KHz */
+		return 0x000000A1;
+	case 0xCB20: /* 52000 KHz */
+		return 0x07627091;
+	default:
+		pr_err("Unknown Refclk freq (0x%04x), using 2600KHz\n",
+		       clk_khz);
+		return 0x0EC4F121;
+	}
+}
+
+int cw1200_core_probe(const struct sbus_ops *sbus_ops,
+		      struct sbus_priv *sbus,
+		      struct device *pdev,
+		      struct cw1200_common **core,
+		      int ref_clk, const u8 *macaddr,
+		      const char *sdd_path, bool have_5ghz)
+{
+	int err = -EINVAL;
+	struct ieee80211_hw *dev;
+	struct cw1200_common *priv;
+	struct wsm_operational_mode mode = {
+		.power_mode = cw1200_power_mode,
+		.disable_more_flag_usage = true,
+	};
+
+	dev = cw1200_init_common(macaddr, have_5ghz);
+	if (!dev)
+		goto err;
+
+	priv = dev->priv;
+	priv->hw_refclk = ref_clk;
+	if (cw1200_refclk)
+		priv->hw_refclk = cw1200_refclk;
+
+	priv->sdd_path = (char *)sdd_path;
+	if (cw1200_sdd_path)
+		priv->sdd_path = cw1200_sdd_path;
+
+	priv->sbus_ops = sbus_ops;
+	priv->sbus_priv = sbus;
+	priv->pdev = pdev;
+	SET_IEEE80211_DEV(priv->hw, pdev);
+
+	/* Pass struct cw1200_common back up */
+	*core = priv;
+
+	err = cw1200_register_bh(priv);
+	if (err)
+		goto err1;
+
+#ifdef CONFIG_CW1200_ETF
+	if (etf_mode)
+		goto skip_fw;
+#endif
+
+	err = cw1200_load_firmware(priv);
+	if (err)
+		goto err2;
+
+	if (wait_event_interruptible_timeout(priv->wsm_startup_done,
+					     priv->firmware_ready,
+					     3*HZ) <= 0) {
+		/* TODO: Need to find how to reset device
+		   in QUEUE mode properly.
+		*/
+		pr_err("Timeout waiting on device startup\n");
+		err = -ETIMEDOUT;
+		goto err2;
+	}
+
+	/* Set low-power mode. */
+	wsm_set_operational_mode(priv, &mode);
+
+	/* Enable multi-TX confirmation */
+	wsm_use_multi_tx_conf(priv, true);
+
+#ifdef CONFIG_CW1200_ETF
+skip_fw:
+#endif
+	err = cw1200_register_common(dev);
+	if (err)
+		goto err2;
+
+	return err;
+
+err2:
+	cw1200_unregister_bh(priv);
+err1:
+	cw1200_free_common(dev);
+err:
+	*core = NULL;
+	return err;
+}
+EXPORT_SYMBOL_GPL(cw1200_core_probe);
+
+void cw1200_core_release(struct cw1200_common *self)
+{
+	/* Disable device interrupts */
+	self->sbus_ops->lock(self->sbus_priv);
+	__cw1200_irq_enable(self, 0);
+	self->sbus_ops->unlock(self->sbus_priv);
+
+	/* And then clean up */
+	cw1200_unregister_common(self->hw);
+	cw1200_free_common(self->hw);
+	return;
+}
+EXPORT_SYMBOL_GPL(cw1200_core_release);
diff --git a/drivers/net/wireless/cw1200/pm.c b/drivers/net/wireless/cw1200/pm.c
new file mode 100644
index 0000000..79edfb9
--- /dev/null
+++ b/drivers/net/wireless/cw1200/pm.c
@@ -0,0 +1,367 @@
+/*
+ * Mac80211 power management API for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2011, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/if_ether.h>
+#include "cw1200.h"
+#include "pm.h"
+#include "sta.h"
+#include "bh.h"
+#include "sbus.h"
+
+#define CW1200_BEACON_SKIPPING_MULTIPLIER 3
+
+struct cw1200_udp_port_filter {
+	struct wsm_udp_port_filter_hdr hdr;
+	/* Up to 4 filters are allowed. */
+	struct wsm_udp_port_filter filters[WSM_MAX_FILTER_ELEMENTS];
+} __packed;
+
+struct cw1200_ether_type_filter {
+	struct wsm_ether_type_filter_hdr hdr;
+	/* Up to 4 filters are allowed. */
+	struct wsm_ether_type_filter filters[WSM_MAX_FILTER_ELEMENTS];
+} __packed;
+
+static struct cw1200_udp_port_filter cw1200_udp_port_filter_on = {
+	.hdr.num = 2,
+	.filters = {
+		[0] = {
+			.action = WSM_FILTER_ACTION_FILTER_OUT,
+			.type = WSM_FILTER_PORT_TYPE_DST,
+			.port = __cpu_to_le16(67), /* DHCP Bootps */
+		},
+		[1] = {
+			.action = WSM_FILTER_ACTION_FILTER_OUT,
+			.type = WSM_FILTER_PORT_TYPE_DST,
+			.port = __cpu_to_le16(68), /* DHCP Bootpc */
+		},
+	}
+};
+
+static struct wsm_udp_port_filter_hdr cw1200_udp_port_filter_off = {
+	.num = 0,
+};
+
+#ifndef ETH_P_WAPI
+#define ETH_P_WAPI     0x88B4
+#endif
+
+static struct cw1200_ether_type_filter cw1200_ether_type_filter_on = {
+	.hdr.num = 4,
+	.filters = {
+		[0] = {
+			.action = WSM_FILTER_ACTION_FILTER_IN,
+			.type = __cpu_to_le16(ETH_P_IP),
+		},
+		[1] = {
+			.action = WSM_FILTER_ACTION_FILTER_IN,
+			.type = __cpu_to_le16(ETH_P_PAE),
+		},
+		[2] = {
+			.action = WSM_FILTER_ACTION_FILTER_IN,
+			.type = __cpu_to_le16(ETH_P_WAPI),
+		},
+		[3] = {
+			.action = WSM_FILTER_ACTION_FILTER_IN,
+			.type = __cpu_to_le16(ETH_P_ARP),
+		},
+	},
+};
+
+static struct wsm_ether_type_filter_hdr cw1200_ether_type_filter_off = {
+	.num = 0,
+};
+
+/* private */
+struct cw1200_suspend_state {
+	unsigned long bss_loss_tmo;
+	unsigned long join_tmo;
+	unsigned long direct_probe;
+	unsigned long link_id_gc;
+	bool beacon_skipping;
+	u8 prev_ps_mode;
+};
+
+static void cw1200_pm_stay_awake_tmo(unsigned long arg)
+{
+	/* XXX what's the point of this ? */
+}
+
+int cw1200_pm_init(struct cw1200_pm_state *pm,
+		   struct cw1200_common *priv)
+{
+	spin_lock_init(&pm->lock);
+
+	init_timer(&pm->stay_awake);
+	pm->stay_awake.data = (unsigned long)pm;
+	pm->stay_awake.function = cw1200_pm_stay_awake_tmo;
+
+	return 0;
+}
+
+void cw1200_pm_deinit(struct cw1200_pm_state *pm)
+{
+	del_timer_sync(&pm->stay_awake);
+}
+
+void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
+			  unsigned long tmo)
+{
+	long cur_tmo;
+	spin_lock_bh(&pm->lock);
+	cur_tmo = pm->stay_awake.expires - jiffies;
+	if (!timer_pending(&pm->stay_awake) || cur_tmo < (long)tmo)
+		mod_timer(&pm->stay_awake, jiffies + tmo);
+	spin_unlock_bh(&pm->lock);
+}
+
+static long cw1200_suspend_work(struct delayed_work *work)
+{
+	int ret = cancel_delayed_work(work);
+	long tmo;
+	if (ret > 0) {
+		/* Timer is pending */
+		tmo = work->timer.expires - jiffies;
+		if (tmo < 0)
+			tmo = 0;
+	} else {
+		tmo = -1;
+	}
+	return tmo;
+}
+
+static int cw1200_resume_work(struct cw1200_common *priv,
+			       struct delayed_work *work,
+			       unsigned long tmo)
+{
+	if ((long)tmo < 0)
+		return 1;
+
+	return queue_delayed_work(priv->workqueue, work, tmo);
+}
+
+int cw1200_can_suspend(struct cw1200_common *priv)
+{
+	if (atomic_read(&priv->bh_rx)) {
+		wiphy_dbg(priv->hw->wiphy, "Suspend interrupted.\n");
+		return 0;
+	}
+	return 1;
+}
+EXPORT_SYMBOL_GPL(cw1200_can_suspend);
+
+int cw1200_wow_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
+{
+	struct cw1200_common *priv = hw->priv;
+	struct cw1200_pm_state *pm_state = &priv->pm_state;
+	struct cw1200_suspend_state *state;
+	int ret;
+
+	spin_lock_bh(&pm_state->lock);
+	ret = timer_pending(&pm_state->stay_awake);
+	spin_unlock_bh(&pm_state->lock);
+	if (ret)
+		return -EAGAIN;
+
+	/* Do not suspend when datapath is not idle */
+	if (priv->tx_queue_stats.num_queued)
+		return -EBUSY;
+
+	/* Make sure there is no configuration requests in progress. */
+	if (!mutex_trylock(&priv->conf_mutex))
+		return -EBUSY;
+
+	/* Ensure pending operations are done.
+	 * Note also that wow_suspend must return in ~2.5sec, before
+	 * watchdog is triggered.
+	 */
+	if (priv->channel_switch_in_progress)
+		goto revert1;
+
+	/* Do not suspend when join is pending */
+	if (priv->join_pending)
+		goto revert1;
+
+	/* Do not suspend when scanning */
+	if (down_trylock(&priv->scan.lock))
+		goto revert1;
+
+	/* Lock TX. */
+	wsm_lock_tx_async(priv);
+
+	/* Wait to avoid possible race with bh code.
+	 * But do not wait too long...
+	 */
+	if (wait_event_timeout(priv->bh_evt_wq,
+			       !priv->hw_bufs_used, HZ / 10) <= 0)
+		goto revert2;
+
+	/* Set UDP filter */
+	wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_on.hdr);
+
+	/* Set ethernet frame type filter */
+	wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_on.hdr);
+
+	/* Allocate state */
+	state = kzalloc(sizeof(struct cw1200_suspend_state), GFP_KERNEL);
+	if (!state)
+		goto revert3;
+
+	/* Change to legacy PS while going to suspend */
+	if (!priv->vif->p2p &&
+	    priv->join_status == CW1200_JOIN_STATUS_STA &&
+	    priv->powersave_mode.mode != WSM_PSM_PS) {
+		state->prev_ps_mode = priv->powersave_mode.mode;
+		priv->powersave_mode.mode = WSM_PSM_PS;
+		cw1200_set_pm(priv, &priv->powersave_mode);
+		if (wait_event_interruptible_timeout(priv->ps_mode_switch_done,
+						     !priv->ps_mode_switch_in_progress, 1*HZ) <= 0) {
+			goto revert3;
+		}
+	}
+
+	/* Store delayed work states. */
+	state->bss_loss_tmo =
+		cw1200_suspend_work(&priv->bss_loss_work);
+	state->join_tmo =
+		cw1200_suspend_work(&priv->join_timeout);
+	state->direct_probe =
+		cw1200_suspend_work(&priv->scan.probe_work);
+	state->link_id_gc =
+		cw1200_suspend_work(&priv->link_id_gc_work);
+
+	cancel_delayed_work_sync(&priv->clear_recent_scan_work);
+	atomic_set(&priv->recent_scan, 0);
+
+	/* Enable beacon skipping */
+	if (priv->join_status == CW1200_JOIN_STATUS_STA &&
+	    priv->join_dtim_period &&
+	    !priv->has_multicast_subscription) {
+		state->beacon_skipping = true;
+		wsm_set_beacon_wakeup_period(priv,
+					     priv->join_dtim_period,
+					     CW1200_BEACON_SKIPPING_MULTIPLIER * priv->join_dtim_period);
+	}
+
+	/* Stop serving thread */
+	if (cw1200_bh_suspend(priv))
+		goto revert4;
+
+	ret = timer_pending(&priv->mcast_timeout);
+	if (ret)
+		goto revert5;
+
+	/* Store suspend state */
+	pm_state->suspend_state = state;
+
+	/* Enable IRQ wake */
+	ret = priv->sbus_ops->power_mgmt(priv->sbus_priv, true);
+	if (ret) {
+		wiphy_err(priv->hw->wiphy,
+			  "PM request failed: %d. WoW is disabled.\n", ret);
+		cw1200_wow_resume(hw);
+		return -EBUSY;
+	}
+
+	/* Force resume if event is coming from the device. */
+	if (atomic_read(&priv->bh_rx)) {
+		cw1200_wow_resume(hw);
+		return -EAGAIN;
+	}
+
+	return 0;
+
+revert5:
+	WARN_ON(cw1200_bh_resume(priv));
+revert4:
+	cw1200_resume_work(priv, &priv->bss_loss_work,
+			   state->bss_loss_tmo);
+	cw1200_resume_work(priv, &priv->join_timeout,
+			   state->join_tmo);
+	cw1200_resume_work(priv, &priv->scan.probe_work,
+			   state->direct_probe);
+	cw1200_resume_work(priv, &priv->link_id_gc_work,
+			   state->link_id_gc);
+	kfree(state);
+revert3:
+	wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_off);
+	wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_off);
+revert2:
+	wsm_unlock_tx(priv);
+	up(&priv->scan.lock);
+revert1:
+	mutex_unlock(&priv->conf_mutex);
+	return -EBUSY;
+}
+
+int cw1200_wow_resume(struct ieee80211_hw *hw)
+{
+	struct cw1200_common *priv = hw->priv;
+	struct cw1200_pm_state *pm_state = &priv->pm_state;
+	struct cw1200_suspend_state *state;
+
+	state = pm_state->suspend_state;
+	pm_state->suspend_state = NULL;
+
+	/* Disable IRQ wake */
+	priv->sbus_ops->power_mgmt(priv->sbus_priv, false);
+
+	/* Scan.lock must be released before BH is resumed other way
+	 * in case when BSS_LOST command arrived the processing of the
+	 * command will be delayed.
+	 */
+	up(&priv->scan.lock);
+
+	/* Resume BH thread */
+	WARN_ON(cw1200_bh_resume(priv));
+
+	/* Restores previous PS mode */
+	if (!priv->vif->p2p && priv->join_status == CW1200_JOIN_STATUS_STA) {
+		priv->powersave_mode.mode = state->prev_ps_mode;
+		cw1200_set_pm(priv, &priv->powersave_mode);
+	}
+
+	if (state->beacon_skipping) {
+		wsm_set_beacon_wakeup_period(priv, priv->beacon_int *
+					     priv->join_dtim_period >
+					     MAX_BEACON_SKIP_TIME_MS ? 1 :
+					     priv->join_dtim_period, 0);
+		state->beacon_skipping = false;
+	}
+
+	/* Resume delayed work */
+	cw1200_resume_work(priv, &priv->bss_loss_work,
+			   state->bss_loss_tmo);
+	cw1200_resume_work(priv, &priv->join_timeout,
+			   state->join_tmo);
+	cw1200_resume_work(priv, &priv->scan.probe_work,
+			   state->direct_probe);
+	cw1200_resume_work(priv, &priv->link_id_gc_work,
+			   state->link_id_gc);
+
+	/* Remove UDP port filter */
+	wsm_set_udp_port_filter(priv, &cw1200_udp_port_filter_off);
+
+	/* Remove ethernet frame type filter */
+	wsm_set_ether_type_filter(priv, &cw1200_ether_type_filter_off);
+
+	/* Unlock datapath */
+	wsm_unlock_tx(priv);
+
+	/* Unlock configuration mutex */
+	mutex_unlock(&priv->conf_mutex);
+
+	/* Free memory */
+	kfree(state);
+
+	return 0;
+}
diff --git a/drivers/net/wireless/cw1200/pm.h b/drivers/net/wireless/cw1200/pm.h
new file mode 100644
index 0000000..516d967
--- /dev/null
+++ b/drivers/net/wireless/cw1200/pm.h
@@ -0,0 +1,38 @@
+/*
+ * Mac80211 power management interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2011, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef PM_H_INCLUDED
+#define PM_H_INCLUDED
+
+/* ******************************************************************** */
+/* mac80211 API								*/
+
+/* extern */  struct cw1200_common;
+/* private */ struct cw1200_suspend_state;
+
+struct cw1200_pm_state {
+	struct cw1200_suspend_state *suspend_state;
+	struct timer_list stay_awake;
+	struct platform_device *pm_dev;
+	spinlock_t lock; /* Protect access */
+};
+
+int cw1200_pm_init(struct cw1200_pm_state *pm,
+		    struct cw1200_common *priv);
+void cw1200_pm_deinit(struct cw1200_pm_state *pm);
+void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
+			  unsigned long tmo);
+int cw1200_wow_suspend(struct ieee80211_hw *hw,
+		       struct cfg80211_wowlan *wowlan);
+int cw1200_wow_resume(struct ieee80211_hw *hw);
+int cw1200_can_suspend(struct cw1200_common *priv);
+
+#endif
diff --git a/drivers/net/wireless/cw1200/queue.c b/drivers/net/wireless/cw1200/queue.c
new file mode 100644
index 0000000..8510454
--- /dev/null
+++ b/drivers/net/wireless/cw1200/queue.c
@@ -0,0 +1,583 @@
+/*
+ * O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <net/mac80211.h>
+#include <linux/sched.h>
+#include "queue.h"
+#include "cw1200.h"
+#include "debug.h"
+
+/* private */ struct cw1200_queue_item
+{
+	struct list_head	head;
+	struct sk_buff		*skb;
+	u32			packet_id;
+	unsigned long		queue_timestamp;
+	unsigned long		xmit_timestamp;
+	struct cw1200_txpriv	txpriv;
+	u8			generation;
+};
+
+static inline void __cw1200_queue_lock(struct cw1200_queue *queue)
+{
+	struct cw1200_queue_stats *stats = queue->stats;
+	if (queue->tx_locked_cnt++ == 0) {
+		pr_debug("[TX] Queue %d is locked.\n",
+			 queue->queue_id);
+		ieee80211_stop_queue(stats->priv->hw, queue->queue_id);
+	}
+}
+
+static inline void __cw1200_queue_unlock(struct cw1200_queue *queue)
+{
+	struct cw1200_queue_stats *stats = queue->stats;
+	BUG_ON(!queue->tx_locked_cnt);
+	if (--queue->tx_locked_cnt == 0) {
+		pr_debug("[TX] Queue %d is unlocked.\n",
+			 queue->queue_id);
+		ieee80211_wake_queue(stats->priv->hw, queue->queue_id);
+	}
+}
+
+static inline void cw1200_queue_parse_id(u32 packet_id, u8 *queue_generation,
+					 u8 *queue_id, u8 *item_generation,
+					 u8 *item_id)
+{
+	*item_id		= (packet_id >>  0) & 0xFF;
+	*item_generation	= (packet_id >>  8) & 0xFF;
+	*queue_id		= (packet_id >> 16) & 0xFF;
+	*queue_generation	= (packet_id >> 24) & 0xFF;
+}
+
+static inline u32 cw1200_queue_mk_packet_id(u8 queue_generation, u8 queue_id,
+					    u8 item_generation, u8 item_id)
+{
+	return ((u32)item_id << 0) |
+		((u32)item_generation << 8) |
+		((u32)queue_id << 16) |
+		((u32)queue_generation << 24);
+}
+
+static void cw1200_queue_post_gc(struct cw1200_queue_stats *stats,
+				 struct list_head *gc_list)
+{
+	struct cw1200_queue_item *item, *tmp;
+
+	list_for_each_entry_safe(item, tmp, gc_list, head) {
+		list_del(&item->head);
+		stats->skb_dtor(stats->priv, item->skb, &item->txpriv);
+		kfree(item);
+	}
+}
+
+static void cw1200_queue_register_post_gc(struct list_head *gc_list,
+					  struct cw1200_queue_item *item)
+{
+	struct cw1200_queue_item *gc_item;
+	gc_item = kmalloc(sizeof(struct cw1200_queue_item),
+			GFP_ATOMIC);
+	BUG_ON(!gc_item);
+	memcpy(gc_item, item, sizeof(struct cw1200_queue_item));
+	list_add_tail(&gc_item->head, gc_list);
+}
+
+static void __cw1200_queue_gc(struct cw1200_queue *queue,
+			      struct list_head *head,
+			      bool unlock)
+{
+	struct cw1200_queue_stats *stats = queue->stats;
+	struct cw1200_queue_item *item = NULL, *tmp;
+	bool wakeup_stats = false;
+
+	list_for_each_entry_safe(item, tmp, &queue->queue, head) {
+		if (jiffies - item->queue_timestamp < queue->ttl)
+			break;
+		--queue->num_queued;
+		--queue->link_map_cache[item->txpriv.link_id];
+		spin_lock_bh(&stats->lock);
+		--stats->num_queued;
+		if (!--stats->link_map_cache[item->txpriv.link_id])
+			wakeup_stats = true;
+		spin_unlock_bh(&stats->lock);
+		cw1200_debug_tx_ttl(stats->priv);
+		cw1200_queue_register_post_gc(head, item);
+		item->skb = NULL;
+		list_move_tail(&item->head, &queue->free_pool);
+	}
+
+	if (wakeup_stats)
+		wake_up(&stats->wait_link_id_empty);
+
+	if (queue->overfull) {
+		if (queue->num_queued <= (queue->capacity >> 1)) {
+			queue->overfull = false;
+			if (unlock)
+				__cw1200_queue_unlock(queue);
+		} else if (item) {
+			unsigned long tmo = item->queue_timestamp + queue->ttl;
+			mod_timer(&queue->gc, tmo);
+			cw1200_pm_stay_awake(&stats->priv->pm_state,
+					     tmo - jiffies);
+		}
+	}
+}
+
+static void cw1200_queue_gc(unsigned long arg)
+{
+	LIST_HEAD(list);
+	struct cw1200_queue *queue =
+		(struct cw1200_queue *)arg;
+
+	spin_lock_bh(&queue->lock);
+	__cw1200_queue_gc(queue, &list, true);
+	spin_unlock_bh(&queue->lock);
+	cw1200_queue_post_gc(queue->stats, &list);
+}
+
+int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
+			    size_t map_capacity,
+			    cw1200_queue_skb_dtor_t skb_dtor,
+			    struct cw1200_common *priv)
+{
+	memset(stats, 0, sizeof(*stats));
+	stats->map_capacity = map_capacity;
+	stats->skb_dtor = skb_dtor;
+	stats->priv = priv;
+	spin_lock_init(&stats->lock);
+	init_waitqueue_head(&stats->wait_link_id_empty);
+
+	stats->link_map_cache = kzalloc(sizeof(int) * map_capacity,
+					GFP_KERNEL);
+	if (!stats->link_map_cache)
+		return -ENOMEM;
+
+	return 0;
+}
+
+int cw1200_queue_init(struct cw1200_queue *queue,
+		      struct cw1200_queue_stats *stats,
+		      u8 queue_id,
+		      size_t capacity,
+		      unsigned long ttl)
+{
+	size_t i;
+
+	memset(queue, 0, sizeof(*queue));
+	queue->stats = stats;
+	queue->capacity = capacity;
+	queue->queue_id = queue_id;
+	queue->ttl = ttl;
+	INIT_LIST_HEAD(&queue->queue);
+	INIT_LIST_HEAD(&queue->pending);
+	INIT_LIST_HEAD(&queue->free_pool);
+	spin_lock_init(&queue->lock);
+	init_timer(&queue->gc);
+	queue->gc.data = (unsigned long)queue;
+	queue->gc.function = cw1200_queue_gc;
+
+	queue->pool = kzalloc(sizeof(struct cw1200_queue_item) * capacity,
+			GFP_KERNEL);
+	if (!queue->pool)
+		return -ENOMEM;
+
+	queue->link_map_cache = kzalloc(sizeof(int) * stats->map_capacity,
+			GFP_KERNEL);
+	if (!queue->link_map_cache) {
+		kfree(queue->pool);
+		queue->pool = NULL;
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < capacity; ++i)
+		list_add_tail(&queue->pool[i].head, &queue->free_pool);
+
+	return 0;
+}
+
+int cw1200_queue_clear(struct cw1200_queue *queue)
+{
+	int i;
+	LIST_HEAD(gc_list);
+	struct cw1200_queue_stats *stats = queue->stats;
+	struct cw1200_queue_item *item, *tmp;
+
+	spin_lock_bh(&queue->lock);
+	queue->generation++;
+	list_splice_tail_init(&queue->queue, &queue->pending);
+	list_for_each_entry_safe(item, tmp, &queue->pending, head) {
+		WARN_ON(!item->skb);
+		cw1200_queue_register_post_gc(&gc_list, item);
+		item->skb = NULL;
+		list_move_tail(&item->head, &queue->free_pool);
+	}
+	queue->num_queued = 0;
+	queue->num_pending = 0;
+
+	spin_lock_bh(&stats->lock);
+	for (i = 0; i < stats->map_capacity; ++i) {
+		stats->num_queued -= queue->link_map_cache[i];
+		stats->link_map_cache[i] -= queue->link_map_cache[i];
+		queue->link_map_cache[i] = 0;
+	}
+	spin_unlock_bh(&stats->lock);
+	if (queue->overfull) {
+		queue->overfull = false;
+		__cw1200_queue_unlock(queue);
+	}
+	spin_unlock_bh(&queue->lock);
+	wake_up(&stats->wait_link_id_empty);
+	cw1200_queue_post_gc(stats, &gc_list);
+	return 0;
+}
+
+void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats)
+{
+	kfree(stats->link_map_cache);
+	stats->link_map_cache = NULL;
+}
+
+void cw1200_queue_deinit(struct cw1200_queue *queue)
+{
+	cw1200_queue_clear(queue);
+	del_timer_sync(&queue->gc);
+	INIT_LIST_HEAD(&queue->free_pool);
+	kfree(queue->pool);
+	kfree(queue->link_map_cache);
+	queue->pool = NULL;
+	queue->link_map_cache = NULL;
+	queue->capacity = 0;
+}
+
+size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
+				   u32 link_id_map)
+{
+	size_t ret;
+	int i, bit;
+	size_t map_capacity = queue->stats->map_capacity;
+
+	if (!link_id_map)
+		return 0;
+
+	spin_lock_bh(&queue->lock);
+	if (link_id_map == (u32)-1) {
+		ret = queue->num_queued - queue->num_pending;
+	} else {
+		ret = 0;
+		for (i = 0, bit = 1; i < map_capacity; ++i, bit <<= 1) {
+			if (link_id_map & bit)
+				ret += queue->link_map_cache[i];
+		}
+	}
+	spin_unlock_bh(&queue->lock);
+	return ret;
+}
+
+int cw1200_queue_put(struct cw1200_queue *queue,
+		     struct sk_buff *skb,
+		     struct cw1200_txpriv *txpriv)
+{
+	int ret = 0;
+	LIST_HEAD(gc_list);
+	struct cw1200_queue_stats *stats = queue->stats;
+
+	if (txpriv->link_id >= queue->stats->map_capacity)
+		return -EINVAL;
+
+	spin_lock_bh(&queue->lock);
+	if (!WARN_ON(list_empty(&queue->free_pool))) {
+		struct cw1200_queue_item *item = list_first_entry(
+			&queue->free_pool, struct cw1200_queue_item, head);
+		BUG_ON(item->skb);
+
+		list_move_tail(&item->head, &queue->queue);
+		item->skb = skb;
+		item->txpriv = *txpriv;
+		item->generation = 0;
+		item->packet_id = cw1200_queue_mk_packet_id(queue->generation,
+							    queue->queue_id,
+							    item->generation,
+							    item - queue->pool);
+		item->queue_timestamp = jiffies;
+
+		++queue->num_queued;
+		++queue->link_map_cache[txpriv->link_id];
+
+		spin_lock_bh(&stats->lock);
+		++stats->num_queued;
+		++stats->link_map_cache[txpriv->link_id];
+		spin_unlock_bh(&stats->lock);
+
+		/* TX may happen in parallel sometimes.
+		 * Leave extra queue slots so we don't overflow.
+		 */
+		if (queue->overfull == false &&
+		    queue->num_queued >=
+		    (queue->capacity - (num_present_cpus() - 1))) {
+			queue->overfull = true;
+			__cw1200_queue_lock(queue);
+			mod_timer(&queue->gc, jiffies);
+		}
+	} else {
+		ret = -ENOENT;
+	}
+	spin_unlock_bh(&queue->lock);
+	return ret;
+}
+
+int cw1200_queue_get(struct cw1200_queue *queue,
+		     u32 link_id_map,
+		     struct wsm_tx **tx,
+		     struct ieee80211_tx_info **tx_info,
+		     const struct cw1200_txpriv **txpriv)
+{
+	int ret = -ENOENT;
+	struct cw1200_queue_item *item;
+	struct cw1200_queue_stats *stats = queue->stats;
+	bool wakeup_stats = false;
+
+	spin_lock_bh(&queue->lock);
+	list_for_each_entry(item, &queue->queue, head) {
+		if (link_id_map & BIT(item->txpriv.link_id)) {
+			ret = 0;
+			break;
+		}
+	}
+
+	if (!WARN_ON(ret)) {
+		*tx = (struct wsm_tx *)item->skb->data;
+		*tx_info = IEEE80211_SKB_CB(item->skb);
+		*txpriv = &item->txpriv;
+		(*tx)->packet_id = __cpu_to_le32(item->packet_id);
+		list_move_tail(&item->head, &queue->pending);
+		++queue->num_pending;
+		--queue->link_map_cache[item->txpriv.link_id];
+		item->xmit_timestamp = jiffies;
+
+		spin_lock_bh(&stats->lock);
+		--stats->num_queued;
+		if (!--stats->link_map_cache[item->txpriv.link_id])
+			wakeup_stats = true;
+		spin_unlock_bh(&stats->lock);
+	}
+	spin_unlock_bh(&queue->lock);
+	if (wakeup_stats)
+		wake_up(&stats->wait_link_id_empty);
+	return ret;
+}
+
+int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id)
+{
+	int ret = 0;
+	u8 queue_generation, queue_id, item_generation, item_id;
+	struct cw1200_queue_item *item;
+	struct cw1200_queue_stats *stats = queue->stats;
+
+	cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
+			      &item_generation, &item_id);
+
+	item = &queue->pool[item_id];
+
+	spin_lock_bh(&queue->lock);
+	BUG_ON(queue_id != queue->queue_id);
+	if (queue_generation != queue->generation) {
+		ret = -ENOENT;
+	} else if (item_id >= (unsigned) queue->capacity) {
+		WARN_ON(1);
+		ret = -EINVAL;
+	} else if (item->generation != item_generation) {
+		WARN_ON(1);
+		ret = -ENOENT;
+	} else {
+		--queue->num_pending;
+		++queue->link_map_cache[item->txpriv.link_id];
+
+		spin_lock_bh(&stats->lock);
+		++stats->num_queued;
+		++stats->link_map_cache[item->txpriv.link_id];
+		spin_unlock_bh(&stats->lock);
+
+		item->generation = ++item_generation;
+		item->packet_id = cw1200_queue_mk_packet_id(queue_generation,
+							    queue_id,
+							    item_generation,
+							    item_id);
+		list_move(&item->head, &queue->queue);
+	}
+	spin_unlock_bh(&queue->lock);
+	return ret;
+}
+
+int cw1200_queue_requeue_all(struct cw1200_queue *queue)
+{
+	struct cw1200_queue_item *item, *tmp;
+	struct cw1200_queue_stats *stats = queue->stats;
+	spin_lock_bh(&queue->lock);
+
+	list_for_each_entry_safe_reverse(item, tmp, &queue->pending, head) {
+		--queue->num_pending;
+		++queue->link_map_cache[item->txpriv.link_id];
+
+		spin_lock_bh(&stats->lock);
+		++stats->num_queued;
+		++stats->link_map_cache[item->txpriv.link_id];
+		spin_unlock_bh(&stats->lock);
+
+		++item->generation;
+		item->packet_id = cw1200_queue_mk_packet_id(queue->generation,
+							    queue->queue_id,
+							    item->generation,
+							    item - queue->pool);
+		list_move(&item->head, &queue->queue);
+	}
+	spin_unlock_bh(&queue->lock);
+
+	return 0;
+}
+
+int cw1200_queue_remove(struct cw1200_queue *queue, u32 packet_id)
+{
+	int ret = 0;
+	u8 queue_generation, queue_id, item_generation, item_id;
+	struct cw1200_queue_item *item;
+	struct cw1200_queue_stats *stats = queue->stats;
+	struct sk_buff *gc_skb = NULL;
+	struct cw1200_txpriv gc_txpriv;
+
+	cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
+			      &item_generation, &item_id);
+
+	item = &queue->pool[item_id];
+
+	spin_lock_bh(&queue->lock);
+	BUG_ON(queue_id != queue->queue_id);
+	if (queue_generation != queue->generation) {
+		ret = -ENOENT;
+	} else if (item_id >= (unsigned) queue->capacity) {
+		WARN_ON(1);
+		ret = -EINVAL;
+	} else if (item->generation != item_generation) {
+		WARN_ON(1);
+		ret = -ENOENT;
+	} else {
+		gc_txpriv = item->txpriv;
+		gc_skb = item->skb;
+		item->skb = NULL;
+		--queue->num_pending;
+		--queue->num_queued;
+		++queue->num_sent;
+		++item->generation;
+		/* Do not use list_move_tail here, but list_move:
+		 * try to utilize cache row.
+		 */
+		list_move(&item->head, &queue->free_pool);
+
+		if (queue->overfull &&
+		    (queue->num_queued <= (queue->capacity >> 1))) {
+			queue->overfull = false;
+			__cw1200_queue_unlock(queue);
+		}
+	}
+	spin_unlock_bh(&queue->lock);
+
+	if (gc_skb)
+		stats->skb_dtor(stats->priv, gc_skb, &gc_txpriv);
+
+	return ret;
+}
+
+int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
+			 struct sk_buff **skb,
+			 const struct cw1200_txpriv **txpriv)
+{
+	int ret = 0;
+	u8 queue_generation, queue_id, item_generation, item_id;
+	struct cw1200_queue_item *item;
+	cw1200_queue_parse_id(packet_id, &queue_generation, &queue_id,
+			      &item_generation, &item_id);
+
+	item = &queue->pool[item_id];
+
+	spin_lock_bh(&queue->lock);
+	BUG_ON(queue_id != queue->queue_id);
+	if (queue_generation != queue->generation) {
+		ret = -ENOENT;
+	} else if (item_id >= (unsigned) queue->capacity) {
+		WARN_ON(1);
+		ret = -EINVAL;
+	} else if (item->generation != item_generation) {
+		WARN_ON(1);
+		ret = -ENOENT;
+	} else {
+		*skb = item->skb;
+		*txpriv = &item->txpriv;
+	}
+	spin_unlock_bh(&queue->lock);
+	return ret;
+}
+
+void cw1200_queue_lock(struct cw1200_queue *queue)
+{
+	spin_lock_bh(&queue->lock);
+	__cw1200_queue_lock(queue);
+	spin_unlock_bh(&queue->lock);
+}
+
+void cw1200_queue_unlock(struct cw1200_queue *queue)
+{
+	spin_lock_bh(&queue->lock);
+	__cw1200_queue_unlock(queue);
+	spin_unlock_bh(&queue->lock);
+}
+
+bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
+				     unsigned long *timestamp,
+				     u32 pending_frame_id)
+{
+	struct cw1200_queue_item *item;
+	bool ret;
+
+	spin_lock_bh(&queue->lock);
+	ret = !list_empty(&queue->pending);
+	if (ret) {
+		list_for_each_entry(item, &queue->pending, head) {
+			if (item->packet_id != pending_frame_id)
+				if (time_before(item->xmit_timestamp,
+						*timestamp))
+					*timestamp = item->xmit_timestamp;
+		}
+	}
+	spin_unlock_bh(&queue->lock);
+	return ret;
+}
+
+bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
+				 u32 link_id_map)
+{
+	bool empty = true;
+
+	spin_lock_bh(&stats->lock);
+	if (link_id_map == (u32)-1) {
+		empty = stats->num_queued == 0;
+	} else {
+		int i;
+		for (i = 0; i < stats->map_capacity; ++i) {
+			if (link_id_map & BIT(i)) {
+				if (stats->link_map_cache[i]) {
+					empty = false;
+					break;
+				}
+			}
+		}
+	}
+	spin_unlock_bh(&stats->lock);
+
+	return empty;
+}
diff --git a/drivers/net/wireless/cw1200/queue.h b/drivers/net/wireless/cw1200/queue.h
new file mode 100644
index 0000000..119f9c7
--- /dev/null
+++ b/drivers/net/wireless/cw1200/queue.h
@@ -0,0 +1,116 @@
+/*
+ * O(1) TX queue with built-in allocator for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_QUEUE_H_INCLUDED
+#define CW1200_QUEUE_H_INCLUDED
+
+/* private */ struct cw1200_queue_item;
+
+/* extern */ struct sk_buff;
+/* extern */ struct wsm_tx;
+/* extern */ struct cw1200_common;
+/* extern */ struct ieee80211_tx_queue_stats;
+/* extern */ struct cw1200_txpriv;
+
+/* forward */ struct cw1200_queue_stats;
+
+typedef void (*cw1200_queue_skb_dtor_t)(struct cw1200_common *priv,
+					struct sk_buff *skb,
+					const struct cw1200_txpriv *txpriv);
+
+struct cw1200_queue {
+	struct cw1200_queue_stats *stats;
+	size_t			capacity;
+	size_t			num_queued;
+	size_t			num_pending;
+	size_t			num_sent;
+	struct cw1200_queue_item *pool;
+	struct list_head	queue;
+	struct list_head	free_pool;
+	struct list_head	pending;
+	int			tx_locked_cnt;
+	int			*link_map_cache;
+	bool			overfull;
+	spinlock_t		lock; /* Protect queue entry */
+	u8			queue_id;
+	u8			generation;
+	struct timer_list	gc;
+	unsigned long		ttl;
+};
+
+struct cw1200_queue_stats {
+	spinlock_t		lock; /* Protect stats entry */
+	int			*link_map_cache;
+	int			num_queued;
+	size_t			map_capacity;
+	wait_queue_head_t	wait_link_id_empty;
+	cw1200_queue_skb_dtor_t	skb_dtor;
+	struct cw1200_common	*priv;
+};
+
+struct cw1200_txpriv {
+	u8 link_id;
+	u8 raw_link_id;
+	u8 tid;
+	u8 rate_id;
+	u8 offset;
+};
+
+int cw1200_queue_stats_init(struct cw1200_queue_stats *stats,
+			    size_t map_capacity,
+			    cw1200_queue_skb_dtor_t skb_dtor,
+			    struct cw1200_common *priv);
+int cw1200_queue_init(struct cw1200_queue *queue,
+		      struct cw1200_queue_stats *stats,
+		      u8 queue_id,
+		      size_t capacity,
+		      unsigned long ttl);
+int cw1200_queue_clear(struct cw1200_queue *queue);
+void cw1200_queue_stats_deinit(struct cw1200_queue_stats *stats);
+void cw1200_queue_deinit(struct cw1200_queue *queue);
+
+size_t cw1200_queue_get_num_queued(struct cw1200_queue *queue,
+				   u32 link_id_map);
+int cw1200_queue_put(struct cw1200_queue *queue,
+		     struct sk_buff *skb,
+		     struct cw1200_txpriv *txpriv);
+int cw1200_queue_get(struct cw1200_queue *queue,
+		     u32 link_id_map,
+		     struct wsm_tx **tx,
+		     struct ieee80211_tx_info **tx_info,
+		     const struct cw1200_txpriv **txpriv);
+int cw1200_queue_requeue(struct cw1200_queue *queue, u32 packet_id);
+int cw1200_queue_requeue_all(struct cw1200_queue *queue);
+int cw1200_queue_remove(struct cw1200_queue *queue,
+			u32 packet_id);
+int cw1200_queue_get_skb(struct cw1200_queue *queue, u32 packet_id,
+			 struct sk_buff **skb,
+			 const struct cw1200_txpriv **txpriv);
+void cw1200_queue_lock(struct cw1200_queue *queue);
+void cw1200_queue_unlock(struct cw1200_queue *queue);
+bool cw1200_queue_get_xmit_timestamp(struct cw1200_queue *queue,
+				     unsigned long *timestamp,
+				     u32 pending_frame_id);
+
+bool cw1200_queue_stats_is_empty(struct cw1200_queue_stats *stats,
+				 u32 link_id_map);
+
+static inline u8 cw1200_queue_get_queue_id(u32 packet_id)
+{
+	return (packet_id >> 16) & 0xFF;
+}
+
+static inline u8 cw1200_queue_get_generation(u32 packet_id)
+{
+	return (packet_id >>  8) & 0xFF;
+}
+
+#endif /* CW1200_QUEUE_H_INCLUDED */
diff --git a/drivers/net/wireless/cw1200/sbus.h b/drivers/net/wireless/cw1200/sbus.h
new file mode 100644
index 0000000..603fd25
--- /dev/null
+++ b/drivers/net/wireless/cw1200/sbus.h
@@ -0,0 +1,37 @@
+/*
+ * Common sbus abstraction layer interface for cw1200 wireless driver
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_SBUS_H
+#define CW1200_SBUS_H
+
+/*
+ * sbus priv forward definition.
+ * Implemented and instantiated in particular modules.
+ */
+struct sbus_priv;
+
+void cw1200_irq_handler(struct cw1200_common *priv);
+
+/* This MUST be wrapped with sbus_ops->lock/unlock! */
+int __cw1200_irq_enable(struct cw1200_common *priv, int enable);
+
+struct sbus_ops {
+	int (*sbus_memcpy_fromio)(struct sbus_priv *self, unsigned int addr,
+					void *dst, int count);
+	int (*sbus_memcpy_toio)(struct sbus_priv *self, unsigned int addr,
+					const void *src, int count);
+	void (*lock)(struct sbus_priv *self);
+	void (*unlock)(struct sbus_priv *self);
+	size_t (*align_size)(struct sbus_priv *self, size_t size);
+	int (*power_mgmt)(struct sbus_priv *self, bool suspend);
+};
+
+#endif /* CW1200_SBUS_H */
diff --git a/drivers/net/wireless/cw1200/scan.c b/drivers/net/wireless/cw1200/scan.c
new file mode 100644
index 0000000..ee3c190
--- /dev/null
+++ b/drivers/net/wireless/cw1200/scan.c
@@ -0,0 +1,461 @@
+/*
+ * Scan implementation for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/sched.h>
+#include "cw1200.h"
+#include "scan.h"
+#include "sta.h"
+#include "pm.h"
+
+static void cw1200_scan_restart_delayed(struct cw1200_common *priv);
+
+static int cw1200_scan_start(struct cw1200_common *priv, struct wsm_scan *scan)
+{
+	int ret, i;
+	int tmo = 2000;
+
+	switch (priv->join_status) {
+	case CW1200_JOIN_STATUS_PRE_STA:
+	case CW1200_JOIN_STATUS_JOINING:
+		return -EBUSY;
+	default:
+		break;
+	}
+
+	wiphy_dbg(priv->hw->wiphy, "[SCAN] hw req, type %d, %d channels, flags: 0x%x.\n",
+		  scan->type, scan->num_channels, scan->flags);
+
+	for (i = 0; i < scan->num_channels; ++i)
+		tmo += scan->ch[i].max_chan_time + 10;
+
+	cancel_delayed_work_sync(&priv->clear_recent_scan_work);
+	atomic_set(&priv->scan.in_progress, 1);
+	atomic_set(&priv->recent_scan, 1);
+	cw1200_pm_stay_awake(&priv->pm_state, tmo * HZ / 1000);
+	queue_delayed_work(priv->workqueue, &priv->scan.timeout,
+			   tmo * HZ / 1000);
+	ret = wsm_scan(priv, scan);
+	if (ret) {
+		atomic_set(&priv->scan.in_progress, 0);
+		cancel_delayed_work_sync(&priv->scan.timeout);
+		cw1200_scan_restart_delayed(priv);
+	}
+	return ret;
+}
+
+int cw1200_hw_scan(struct ieee80211_hw *hw,
+		   struct ieee80211_vif *vif,
+		   struct cfg80211_scan_request *req)
+{
+	struct cw1200_common *priv = hw->priv;
+	struct wsm_template_frame frame = {
+		.frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
+	};
+	int i, ret;
+
+	if (!priv->vif)
+		return -EINVAL;
+
+	/* Scan when P2P_GO corrupt firmware MiniAP mode */
+	if (priv->join_status == CW1200_JOIN_STATUS_AP)
+		return -EOPNOTSUPP;
+
+	if (req->n_ssids == 1 && !req->ssids[0].ssid_len)
+		req->n_ssids = 0;
+
+	wiphy_dbg(hw->wiphy, "[SCAN] Scan request for %d SSIDs.\n",
+		  req->n_ssids);
+
+	if (req->n_ssids > WSM_SCAN_MAX_NUM_OF_SSIDS)
+		return -EINVAL;
+
+	frame.skb = ieee80211_probereq_get(hw, priv->vif, NULL, 0,
+		req->ie_len);
+	if (!frame.skb)
+		return -ENOMEM;
+
+	if (req->ie_len)
+		memcpy(skb_put(frame.skb, req->ie_len), req->ie, req->ie_len);
+
+	/* will be unlocked in cw1200_scan_work() */
+	down(&priv->scan.lock);
+	mutex_lock(&priv->conf_mutex);
+
+	ret = wsm_set_template_frame(priv, &frame);
+	if (!ret) {
+		/* Host want to be the probe responder. */
+		ret = wsm_set_probe_responder(priv, true);
+	}
+	if (ret) {
+		mutex_unlock(&priv->conf_mutex);
+		up(&priv->scan.lock);
+		dev_kfree_skb(frame.skb);
+		return ret;
+	}
+
+	wsm_lock_tx(priv);
+
+	BUG_ON(priv->scan.req);
+	priv->scan.req = req;
+	priv->scan.n_ssids = 0;
+	priv->scan.status = 0;
+	priv->scan.begin = &req->channels[0];
+	priv->scan.curr = priv->scan.begin;
+	priv->scan.end = &req->channels[req->n_channels];
+	priv->scan.output_power = priv->output_power;
+
+	for (i = 0; i < req->n_ssids; ++i) {
+		struct wsm_ssid *dst = &priv->scan.ssids[priv->scan.n_ssids];
+		memcpy(&dst->ssid[0], req->ssids[i].ssid, sizeof(dst->ssid));
+		dst->length = req->ssids[i].ssid_len;
+		++priv->scan.n_ssids;
+	}
+
+	mutex_unlock(&priv->conf_mutex);
+
+	if (frame.skb)
+		dev_kfree_skb(frame.skb);
+	queue_work(priv->workqueue, &priv->scan.work);
+	return 0;
+}
+
+void cw1200_scan_work(struct work_struct *work)
+{
+	struct cw1200_common *priv = container_of(work, struct cw1200_common,
+							scan.work);
+	struct ieee80211_channel **it;
+	struct wsm_scan scan = {
+		.type = WSM_SCAN_TYPE_FOREGROUND,
+		.flags = WSM_SCAN_FLAG_SPLIT_METHOD,
+	};
+	bool first_run = (priv->scan.begin == priv->scan.curr &&
+			  priv->scan.begin != priv->scan.end);
+	int i;
+
+	if (first_run) {
+		/* Firmware gets crazy if scan request is sent
+		 * when STA is joined but not yet associated.
+		 * Force unjoin in this case.
+		 */
+		if (cancel_delayed_work_sync(&priv->join_timeout) > 0)
+			cw1200_join_timeout(&priv->join_timeout.work);
+	}
+
+	mutex_lock(&priv->conf_mutex);
+
+	if (first_run) {
+		if (priv->join_status == CW1200_JOIN_STATUS_STA &&
+		    !(priv->powersave_mode.mode & WSM_PSM_PS)) {
+			struct wsm_set_pm pm = priv->powersave_mode;
+			pm.mode = WSM_PSM_PS;
+			cw1200_set_pm(priv, &pm);
+		} else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
+			/* FW bug: driver has to restart p2p-dev mode
+			 * after scan
+			 */
+			cw1200_disable_listening(priv);
+		}
+	}
+
+	if (!priv->scan.req || (priv->scan.curr == priv->scan.end)) {
+		if (priv->scan.output_power != priv->output_power)
+			wsm_set_output_power(priv, priv->output_power * 10);
+		if (priv->join_status == CW1200_JOIN_STATUS_STA &&
+		    !(priv->powersave_mode.mode & WSM_PSM_PS))
+			cw1200_set_pm(priv, &priv->powersave_mode);
+
+		if (priv->scan.status < 0)
+			wiphy_dbg(priv->hw->wiphy, "[SCAN] Scan failed (%d).\n",
+				  priv->scan.status);
+		else if (priv->scan.req)
+			wiphy_dbg(priv->hw->wiphy,
+				  "[SCAN] Scan completed.\n");
+		else
+			wiphy_dbg(priv->hw->wiphy,
+				  "[SCAN] Scan canceled.\n");
+
+		priv->scan.req = NULL;
+		cw1200_scan_restart_delayed(priv);
+		wsm_unlock_tx(priv);
+		mutex_unlock(&priv->conf_mutex);
+		ieee80211_scan_completed(priv->hw, priv->scan.status ? 1 : 0);
+		up(&priv->scan.lock);
+		return;
+	} else {
+		struct ieee80211_channel *first = *priv->scan.curr;
+		for (it = priv->scan.curr + 1, i = 1;
+		     it != priv->scan.end && i < WSM_SCAN_MAX_NUM_OF_CHANNELS;
+		     ++it, ++i) {
+			if ((*it)->band != first->band)
+				break;
+			if (((*it)->flags ^ first->flags) &
+					IEEE80211_CHAN_PASSIVE_SCAN)
+				break;
+			if (!(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
+			    (*it)->max_power != first->max_power)
+				break;
+		}
+		scan.band = first->band;
+
+		if (priv->scan.req->no_cck)
+			scan.max_tx_rate = WSM_TRANSMIT_RATE_6;
+		else
+			scan.max_tx_rate = WSM_TRANSMIT_RATE_1;
+		scan.num_probes =
+			(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) ? 0 : 2;
+		scan.num_ssids = priv->scan.n_ssids;
+		scan.ssids = &priv->scan.ssids[0];
+		scan.num_channels = it - priv->scan.curr;
+		/* TODO: Is it optimal? */
+		scan.probe_delay = 100;
+		/* It is not stated in WSM specification, however
+		 * FW team says that driver may not use FG scan
+		 * when joined.
+		 */
+		if (priv->join_status == CW1200_JOIN_STATUS_STA) {
+			scan.type = WSM_SCAN_TYPE_BACKGROUND;
+			scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
+		}
+		scan.ch = kzalloc(
+			sizeof(struct wsm_scan_ch) * (it - priv->scan.curr),
+			GFP_KERNEL);
+		if (!scan.ch) {
+			priv->scan.status = -ENOMEM;
+			goto fail;
+		}
+		for (i = 0; i < scan.num_channels; ++i) {
+			scan.ch[i].number = priv->scan.curr[i]->hw_value;
+			if (priv->scan.curr[i]->flags & IEEE80211_CHAN_PASSIVE_SCAN) {
+				scan.ch[i].min_chan_time = 50;
+				scan.ch[i].max_chan_time = 100;
+			} else {
+				scan.ch[i].min_chan_time = 10;
+				scan.ch[i].max_chan_time = 25;
+			}
+		}
+		if (!(first->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
+		    priv->scan.output_power != first->max_power) {
+			priv->scan.output_power = first->max_power;
+			wsm_set_output_power(priv,
+					     priv->scan.output_power * 10);
+		}
+		priv->scan.status = cw1200_scan_start(priv, &scan);
+		kfree(scan.ch);
+		if (priv->scan.status)
+			goto fail;
+		priv->scan.curr = it;
+	}
+	mutex_unlock(&priv->conf_mutex);
+	return;
+
+fail:
+	priv->scan.curr = priv->scan.end;
+	mutex_unlock(&priv->conf_mutex);
+	queue_work(priv->workqueue, &priv->scan.work);
+	return;
+}
+
+static void cw1200_scan_restart_delayed(struct cw1200_common *priv)
+{
+	/* FW bug: driver has to restart p2p-dev mode after scan. */
+	if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
+		cw1200_enable_listening(priv);
+		cw1200_update_filtering(priv);
+	}
+
+	if (priv->delayed_unjoin) {
+		priv->delayed_unjoin = false;
+		if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+			wsm_unlock_tx(priv);
+	} else if (priv->delayed_link_loss) {
+			wiphy_dbg(priv->hw->wiphy, "[CQM] Requeue BSS loss.\n");
+			priv->delayed_link_loss = 0;
+			cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
+	}
+}
+
+static void cw1200_scan_complete(struct cw1200_common *priv)
+{
+	queue_delayed_work(priv->workqueue, &priv->clear_recent_scan_work, HZ);
+	if (priv->scan.direct_probe) {
+		wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe complete.\n");
+		cw1200_scan_restart_delayed(priv);
+		priv->scan.direct_probe = 0;
+		up(&priv->scan.lock);
+		wsm_unlock_tx(priv);
+	} else {
+		cw1200_scan_work(&priv->scan.work);
+	}
+}
+
+void cw1200_scan_failed_cb(struct cw1200_common *priv)
+{
+	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+		/* STA is stopped. */
+		return;
+
+	if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {
+		priv->scan.status = -EIO;
+		queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);
+	}
+}
+
+
+void cw1200_scan_complete_cb(struct cw1200_common *priv,
+				struct wsm_scan_complete *arg)
+{
+	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+		/* STA is stopped. */
+		return;
+
+	if (cancel_delayed_work_sync(&priv->scan.timeout) > 0) {
+		priv->scan.status = 1;
+		queue_delayed_work(priv->workqueue, &priv->scan.timeout, 0);
+	}
+}
+
+void cw1200_clear_recent_scan_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common,
+			     clear_recent_scan_work.work);
+	atomic_xchg(&priv->recent_scan, 0);
+}
+
+void cw1200_scan_timeout(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, scan.timeout.work);
+	if (atomic_xchg(&priv->scan.in_progress, 0)) {
+		if (priv->scan.status > 0) {
+			priv->scan.status = 0;
+		} else if (!priv->scan.status) {
+			wiphy_warn(priv->hw->wiphy,
+				   "Timeout waiting for scan complete notification.\n");
+			priv->scan.status = -ETIMEDOUT;
+			priv->scan.curr = priv->scan.end;
+			wsm_stop_scan(priv);
+		}
+		cw1200_scan_complete(priv);
+	}
+}
+
+void cw1200_probe_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, scan.probe_work.work);
+	u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id);
+	struct cw1200_queue *queue = &priv->tx_queue[queue_id];
+	const struct cw1200_txpriv *txpriv;
+	struct wsm_tx *wsm;
+	struct wsm_template_frame frame = {
+		.frame_type = WSM_FRAME_TYPE_PROBE_REQUEST,
+	};
+	struct wsm_ssid ssids[1] = {{
+		.length = 0,
+	} };
+	struct wsm_scan_ch ch[1] = {{
+		.min_chan_time = 0,
+		.max_chan_time = 10,
+	} };
+	struct wsm_scan scan = {
+		.type = WSM_SCAN_TYPE_FOREGROUND,
+		.num_probes = 1,
+		.probe_delay = 0,
+		.num_channels = 1,
+		.ssids = ssids,
+		.ch = ch,
+	};
+	u8 *ies;
+	size_t ies_len;
+	int ret;
+
+	wiphy_dbg(priv->hw->wiphy, "[SCAN] Direct probe work.\n");
+
+	mutex_lock(&priv->conf_mutex);
+	if (down_trylock(&priv->scan.lock)) {
+		/* Scan is already in progress. Requeue self. */
+		schedule();
+		queue_delayed_work(priv->workqueue,
+				   &priv->scan.probe_work, HZ / 10);
+		mutex_unlock(&priv->conf_mutex);
+		return;
+	}
+
+	/* Make sure we still have a pending probe req */
+	if (cw1200_queue_get_skb(queue,	priv->pending_frame_id,
+				 &frame.skb, &txpriv)) {
+		up(&priv->scan.lock);
+		mutex_unlock(&priv->conf_mutex);
+		wsm_unlock_tx(priv);
+		return;
+	}
+	wsm = (struct wsm_tx *)frame.skb->data;
+	scan.max_tx_rate = wsm->max_tx_rate;
+	scan.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
+		WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
+	if (priv->join_status == CW1200_JOIN_STATUS_STA ||
+	    priv->join_status == CW1200_JOIN_STATUS_IBSS) {
+		scan.type = WSM_SCAN_TYPE_BACKGROUND;
+		scan.flags = WSM_SCAN_FLAG_FORCE_BACKGROUND;
+	}
+	ch[0].number = priv->channel->hw_value;
+
+	skb_pull(frame.skb, txpriv->offset);
+
+	ies = &frame.skb->data[sizeof(struct ieee80211_hdr_3addr)];
+	ies_len = frame.skb->len - sizeof(struct ieee80211_hdr_3addr);
+
+	if (ies_len) {
+		u8 *ssidie =
+			(u8 *)cfg80211_find_ie(WLAN_EID_SSID, ies, ies_len);
+		if (ssidie && ssidie[1] && ssidie[1] <= sizeof(ssids[0].ssid)) {
+			u8 *nextie = &ssidie[2 + ssidie[1]];
+			/* Remove SSID from the IE list. It has to be provided
+			 * as a separate argument in cw1200_scan_start call
+			 */
+
+			/* Store SSID localy */
+			ssids[0].length = ssidie[1];
+			memcpy(ssids[0].ssid, &ssidie[2], ssids[0].length);
+			scan.num_ssids = 1;
+
+			/* Remove SSID from IE list */
+			ssidie[1] = 0;
+			memmove(&ssidie[2], nextie, &ies[ies_len] - nextie);
+			skb_trim(frame.skb, frame.skb->len - ssids[0].length);
+		}
+	}
+
+	/* FW bug: driver has to restart p2p-dev mode after scan */
+	if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
+		cw1200_disable_listening(priv);
+	ret = wsm_set_template_frame(priv, &frame);
+	priv->scan.direct_probe = 1;
+	if (!ret) {
+		wsm_flush_tx(priv);
+		ret = cw1200_scan_start(priv, &scan);
+	}
+	mutex_unlock(&priv->conf_mutex);
+
+	skb_push(frame.skb, txpriv->offset);
+	if (!ret)
+		IEEE80211_SKB_CB(frame.skb)->flags |= IEEE80211_TX_STAT_ACK;
+	BUG_ON(cw1200_queue_remove(queue, priv->pending_frame_id));
+
+	if (ret) {
+		priv->scan.direct_probe = 0;
+		up(&priv->scan.lock);
+		wsm_unlock_tx(priv);
+	}
+
+	return;
+}
diff --git a/drivers/net/wireless/cw1200/scan.h b/drivers/net/wireless/cw1200/scan.h
new file mode 100644
index 0000000..5a8296c
--- /dev/null
+++ b/drivers/net/wireless/cw1200/scan.h
@@ -0,0 +1,56 @@
+/*
+ * Scan interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef SCAN_H_INCLUDED
+#define SCAN_H_INCLUDED
+
+#include <linux/semaphore.h>
+#include "wsm.h"
+
+/* external */ struct sk_buff;
+/* external */ struct cfg80211_scan_request;
+/* external */ struct ieee80211_channel;
+/* external */ struct ieee80211_hw;
+/* external */ struct work_struct;
+
+struct cw1200_scan {
+	struct semaphore lock;
+	struct work_struct work;
+	struct delayed_work timeout;
+	struct cfg80211_scan_request *req;
+	struct ieee80211_channel **begin;
+	struct ieee80211_channel **curr;
+	struct ieee80211_channel **end;
+	struct wsm_ssid ssids[WSM_SCAN_MAX_NUM_OF_SSIDS];
+	int output_power;
+	int n_ssids;
+	int status;
+	atomic_t in_progress;
+	/* Direct probe requests workaround */
+	struct delayed_work probe_work;
+	int direct_probe;
+};
+
+int cw1200_hw_scan(struct ieee80211_hw *hw,
+		   struct ieee80211_vif *vif,
+		   struct cfg80211_scan_request *req);
+void cw1200_scan_work(struct work_struct *work);
+void cw1200_scan_timeout(struct work_struct *work);
+void cw1200_clear_recent_scan_work(struct work_struct *work);
+void cw1200_scan_complete_cb(struct cw1200_common *priv,
+			     struct wsm_scan_complete *arg);
+void cw1200_scan_failed_cb(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* Raw probe requests TX workaround					*/
+void cw1200_probe_work(struct work_struct *work);
+
+#endif
diff --git a/drivers/net/wireless/cw1200/sta.c b/drivers/net/wireless/cw1200/sta.c
new file mode 100644
index 0000000..679c55f
--- /dev/null
+++ b/drivers/net/wireless/cw1200/sta.c
@@ -0,0 +1,2406 @@
+/*
+ * Mac80211 STA API for ST-Ericsson CW1200 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/vmalloc.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+
+#include "cw1200.h"
+#include "sta.h"
+#include "fwio.h"
+#include "bh.h"
+#include "debug.h"
+
+#ifndef ERP_INFO_BYTE_OFFSET
+#define ERP_INFO_BYTE_OFFSET 2
+#endif
+
+static void cw1200_do_join(struct cw1200_common *priv);
+static void cw1200_do_unjoin(struct cw1200_common *priv);
+
+static int cw1200_upload_beacon(struct cw1200_common *priv);
+static int cw1200_upload_pspoll(struct cw1200_common *priv);
+static int cw1200_upload_null(struct cw1200_common *priv);
+static int cw1200_upload_qosnull(struct cw1200_common *priv);
+static int cw1200_start_ap(struct cw1200_common *priv);
+static int cw1200_update_beaconing(struct cw1200_common *priv);
+static int cw1200_enable_beaconing(struct cw1200_common *priv,
+				   bool enable);
+static void __cw1200_sta_notify(struct ieee80211_hw *dev,
+				struct ieee80211_vif *vif,
+				enum sta_notify_cmd notify_cmd,
+				int link_id);
+static int __cw1200_flush(struct cw1200_common *priv, bool drop);
+
+static inline void __cw1200_free_event_queue(struct list_head *list)
+{
+	struct cw1200_wsm_event *event, *tmp;
+	list_for_each_entry_safe(event, tmp, list, link) {
+		list_del(&event->link);
+		kfree(event);
+	}
+}
+
+/* ******************************************************************** */
+/* STA API								*/
+
+int cw1200_start(struct ieee80211_hw *dev)
+{
+	struct cw1200_common *priv = dev->priv;
+	int ret = 0;
+
+	cw1200_pm_stay_awake(&priv->pm_state, HZ);
+
+	mutex_lock(&priv->conf_mutex);
+
+	/* default EDCA */
+	WSM_EDCA_SET(&priv->edca, 0, 0x0002, 0x0003, 0x0007, 47, 0xc8, false);
+	WSM_EDCA_SET(&priv->edca, 1, 0x0002, 0x0007, 0x000f, 94, 0xc8, false);
+	WSM_EDCA_SET(&priv->edca, 2, 0x0003, 0x000f, 0x03ff, 0, 0xc8, false);
+	WSM_EDCA_SET(&priv->edca, 3, 0x0007, 0x000f, 0x03ff, 0, 0xc8, false);
+	ret = wsm_set_edca_params(priv, &priv->edca);
+	if (ret)
+		goto out;
+
+	ret = cw1200_set_uapsd_param(priv, &priv->edca);
+	if (ret)
+		goto out;
+
+	priv->setbssparams_done = false;
+
+	memcpy(priv->mac_addr, dev->wiphy->perm_addr, ETH_ALEN);
+	priv->mode = NL80211_IFTYPE_MONITOR;
+	priv->wep_default_key_id = -1;
+
+	priv->cqm_beacon_loss_count = 10;
+
+	ret = cw1200_setup_mac(priv);
+	if (ret)
+		goto out;
+
+out:
+	mutex_unlock(&priv->conf_mutex);
+	return ret;
+}
+
+void cw1200_stop(struct ieee80211_hw *dev)
+{
+	struct cw1200_common *priv = dev->priv;
+	LIST_HEAD(list);
+	int i;
+
+	wsm_lock_tx(priv);
+
+	while (down_trylock(&priv->scan.lock)) {
+		/* Scan is in progress. Force it to stop. */
+		priv->scan.req = NULL;
+		schedule();
+	}
+	up(&priv->scan.lock);
+
+	cancel_delayed_work_sync(&priv->scan.probe_work);
+	cancel_delayed_work_sync(&priv->scan.timeout);
+	cancel_delayed_work_sync(&priv->clear_recent_scan_work);
+	cancel_delayed_work_sync(&priv->join_timeout);
+	cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
+	cancel_work_sync(&priv->unjoin_work);
+	cancel_delayed_work_sync(&priv->link_id_gc_work);
+	flush_workqueue(priv->workqueue);
+	del_timer_sync(&priv->mcast_timeout);
+	mutex_lock(&priv->conf_mutex);
+	priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+	priv->listening = false;
+
+	spin_lock(&priv->event_queue_lock);
+	list_splice_init(&priv->event_queue, &list);
+	spin_unlock(&priv->event_queue_lock);
+	__cw1200_free_event_queue(&list);
+
+
+	priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+	priv->join_pending = false;
+
+	for (i = 0; i < 4; i++)
+		cw1200_queue_clear(&priv->tx_queue[i]);
+	mutex_unlock(&priv->conf_mutex);
+	tx_policy_clean(priv);
+
+	/* HACK! */
+	if (atomic_xchg(&priv->tx_lock, 1) != 1)
+		pr_debug("[STA] TX is force-unlocked due to stop request.\n");
+
+	wsm_unlock_tx(priv);
+	atomic_xchg(&priv->tx_lock, 0); /* for recovery to work */
+}
+
+static int cw1200_bssloss_mitigation = 1;
+module_param(cw1200_bssloss_mitigation, int, 0644);
+MODULE_PARM_DESC(cw1200_bssloss_mitigation, "BSS Loss mitigation. 0 == disabled, 1 == enabled (default)");
+
+
+void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
+			     int init, int good, int bad)
+{
+	int tx = 0;
+
+	priv->delayed_link_loss = 0;
+	cancel_work_sync(&priv->bss_params_work);
+
+	pr_debug("[STA] CQM BSSLOSS_SM: state: %d init %d good %d bad: %d txlock: %d uj: %d\n",
+		 priv->bss_loss_state,
+		 init, good, bad,
+		 atomic_read(&priv->tx_lock),
+		 priv->delayed_unjoin);
+
+	/* If we have a pending unjoin */
+	if (priv->delayed_unjoin)
+		return;
+
+	if (init) {
+		queue_delayed_work(priv->workqueue,
+				   &priv->bss_loss_work,
+				   HZ);
+		priv->bss_loss_state = 0;
+
+		/* Skip the confimration procedure in P2P case */
+		if (!priv->vif->p2p && !atomic_read(&priv->tx_lock))
+			tx = 1;
+	} else if (good) {
+		cancel_delayed_work_sync(&priv->bss_loss_work);
+		priv->bss_loss_state = 0;
+		queue_work(priv->workqueue, &priv->bss_params_work);
+	} else if (bad) {
+		/* XXX Should we just keep going until we time out? */
+		if (priv->bss_loss_state < 3)
+			tx = 1;
+	} else {
+		cancel_delayed_work_sync(&priv->bss_loss_work);
+		priv->bss_loss_state = 0;
+	}
+
+	/* Bypass mitigation if it's disabled */
+	if (!cw1200_bssloss_mitigation)
+		tx = 0;
+
+	/* Spit out a NULL packet to our AP if necessary */
+	if (tx) {
+		struct sk_buff *skb;
+
+		priv->bss_loss_state++;
+
+		skb = ieee80211_nullfunc_get(priv->hw, priv->vif);
+		WARN_ON(!skb);
+		if (skb)
+			cw1200_tx(priv->hw, NULL, skb);
+	}
+}
+
+int cw1200_add_interface(struct ieee80211_hw *dev,
+			 struct ieee80211_vif *vif)
+{
+	int ret;
+	struct cw1200_common *priv = dev->priv;
+	/* __le32 auto_calibration_mode = __cpu_to_le32(1); */
+
+	vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
+			     IEEE80211_VIF_SUPPORTS_CQM_RSSI;
+
+	mutex_lock(&priv->conf_mutex);
+
+	if (priv->mode != NL80211_IFTYPE_MONITOR) {
+		mutex_unlock(&priv->conf_mutex);
+		return -EOPNOTSUPP;
+	}
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_ADHOC:
+	case NL80211_IFTYPE_MESH_POINT:
+	case NL80211_IFTYPE_AP:
+		priv->mode = vif->type;
+		break;
+	default:
+		mutex_unlock(&priv->conf_mutex);
+		return -EOPNOTSUPP;
+	}
+
+	priv->vif = vif;
+	memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
+	ret = cw1200_setup_mac(priv);
+	/* Enable auto-calibration */
+	/* Exception in subsequent channel switch; disabled.
+	 *  wsm_write_mib(priv, WSM_MIB_ID_SET_AUTO_CALIBRATION_MODE,
+	 *      &auto_calibration_mode, sizeof(auto_calibration_mode));
+	*/
+
+	mutex_unlock(&priv->conf_mutex);
+	return ret;
+}
+
+void cw1200_remove_interface(struct ieee80211_hw *dev,
+			     struct ieee80211_vif *vif)
+{
+	struct cw1200_common *priv = dev->priv;
+	struct wsm_reset reset = {
+		.reset_statistics = true,
+	};
+	int i;
+
+	mutex_lock(&priv->conf_mutex);
+	switch (priv->join_status) {
+	case CW1200_JOIN_STATUS_JOINING:
+	case CW1200_JOIN_STATUS_PRE_STA:
+	case CW1200_JOIN_STATUS_STA:
+	case CW1200_JOIN_STATUS_IBSS:
+		wsm_lock_tx(priv);
+		if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+			wsm_unlock_tx(priv);
+		break;
+	case CW1200_JOIN_STATUS_AP:
+		for (i = 0; priv->link_id_map; ++i) {
+			if (priv->link_id_map & BIT(i)) {
+				reset.link_id = i;
+				wsm_reset(priv, &reset);
+				priv->link_id_map &= ~BIT(i);
+			}
+		}
+		memset(priv->link_id_db, 0, sizeof(priv->link_id_db));
+		priv->sta_asleep_mask = 0;
+		priv->enable_beacon = false;
+		priv->tx_multicast = false;
+		priv->aid0_bit_set = false;
+		priv->buffered_multicasts = false;
+		priv->pspoll_mask = 0;
+		reset.link_id = 0;
+		wsm_reset(priv, &reset);
+		break;
+	case CW1200_JOIN_STATUS_MONITOR:
+		cw1200_update_listening(priv, false);
+		break;
+	default:
+		break;
+	}
+	priv->vif = NULL;
+	priv->mode = NL80211_IFTYPE_MONITOR;
+	memset(priv->mac_addr, 0, ETH_ALEN);
+	memset(&priv->p2p_ps_modeinfo, 0, sizeof(priv->p2p_ps_modeinfo));
+	cw1200_free_keys(priv);
+	cw1200_setup_mac(priv);
+	priv->listening = false;
+	priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+	if (!__cw1200_flush(priv, true))
+		wsm_unlock_tx(priv);
+
+	mutex_unlock(&priv->conf_mutex);
+}
+
+int cw1200_change_interface(struct ieee80211_hw *dev,
+			    struct ieee80211_vif *vif,
+			    enum nl80211_iftype new_type,
+			    bool p2p)
+{
+	int ret = 0;
+	pr_debug("change_interface new: %d (%d), old: %d (%d)\n", new_type,
+		 p2p, vif->type, vif->p2p);
+
+	if (new_type != vif->type || vif->p2p != p2p) {
+		cw1200_remove_interface(dev, vif);
+		vif->type = new_type;
+		vif->p2p = p2p;
+		ret = cw1200_add_interface(dev, vif);
+	}
+
+	return ret;
+}
+
+int cw1200_config(struct ieee80211_hw *dev, u32 changed)
+{
+	int ret = 0;
+	struct cw1200_common *priv = dev->priv;
+	struct ieee80211_conf *conf = &dev->conf;
+
+	pr_debug("CONFIG CHANGED:  %08x\n", changed);
+
+	down(&priv->scan.lock);
+	mutex_lock(&priv->conf_mutex);
+	/* TODO: IEEE80211_CONF_CHANGE_QOS */
+	/* TODO: IEEE80211_CONF_CHANGE_LISTEN_INTERVAL */
+
+	if (changed & IEEE80211_CONF_CHANGE_POWER) {
+		priv->output_power = conf->power_level;
+		pr_debug("[STA] TX power: %d\n", priv->output_power);
+		wsm_set_output_power(priv, priv->output_power * 10);
+	}
+
+	if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) &&
+	    (priv->channel != conf->chandef.chan)) {
+		struct ieee80211_channel *ch = conf->chandef.chan;
+		struct wsm_switch_channel channel = {
+			.channel_number = ch->hw_value,
+		};
+		pr_debug("[STA] Freq %d (wsm ch: %d).\n",
+			 ch->center_freq, ch->hw_value);
+
+		/* __cw1200_flush() implicitly locks tx, if successful */
+		if (!__cw1200_flush(priv, false)) {
+			if (!wsm_switch_channel(priv, &channel)) {
+				ret = wait_event_timeout(priv->channel_switch_done,
+							 !priv->channel_switch_in_progress,
+							 3 * HZ);
+				if (ret) {
+					/* Already unlocks if successful */
+					priv->channel = ch;
+					ret = 0;
+				} else {
+					ret = -ETIMEDOUT;
+				}
+			} else {
+				/* Unlock if switch channel fails */
+				wsm_unlock_tx(priv);
+			}
+		}
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_PS) {
+		if (!(conf->flags & IEEE80211_CONF_PS))
+			priv->powersave_mode.mode = WSM_PSM_ACTIVE;
+		else if (conf->dynamic_ps_timeout <= 0)
+			priv->powersave_mode.mode = WSM_PSM_PS;
+		else
+			priv->powersave_mode.mode = WSM_PSM_FAST_PS;
+
+		/* Firmware requires that value for this 1-byte field must
+		 * be specified in units of 500us. Values above the 128ms
+		 * threshold are not supported.
+		 */
+		if (conf->dynamic_ps_timeout >= 0x80)
+			priv->powersave_mode.fast_psm_idle_period = 0xFF;
+		else
+			priv->powersave_mode.fast_psm_idle_period =
+					conf->dynamic_ps_timeout << 1;
+
+		if (priv->join_status == CW1200_JOIN_STATUS_STA &&
+		    priv->bss_params.aid)
+			cw1200_set_pm(priv, &priv->powersave_mode);
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
+		/* TBD: It looks like it's transparent
+		 * there's a monitor interface present -- use this
+		 * to determine for example whether to calculate
+		 * timestamps for packets or not, do not use instead
+		 * of filter flags!
+		 */
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_IDLE) {
+		struct wsm_operational_mode mode = {
+			.power_mode = cw1200_power_mode,
+			.disable_more_flag_usage = true,
+		};
+
+		wsm_lock_tx(priv);
+		/* Disable p2p-dev mode forced by TX request */
+		if ((priv->join_status == CW1200_JOIN_STATUS_MONITOR) &&
+		    (conf->flags & IEEE80211_CONF_IDLE) &&
+		    !priv->listening) {
+			cw1200_disable_listening(priv);
+			priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+		}
+		wsm_set_operational_mode(priv, &mode);
+		wsm_unlock_tx(priv);
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
+		pr_debug("[STA] Retry limits: %d (long), %d (short).\n",
+			 conf->long_frame_max_tx_count,
+			 conf->short_frame_max_tx_count);
+		spin_lock_bh(&priv->tx_policy_cache.lock);
+		priv->long_frame_max_tx_count = conf->long_frame_max_tx_count;
+		priv->short_frame_max_tx_count =
+			(conf->short_frame_max_tx_count < 0x0F) ?
+			conf->short_frame_max_tx_count : 0x0F;
+		priv->hw->max_rate_tries = priv->short_frame_max_tx_count;
+		spin_unlock_bh(&priv->tx_policy_cache.lock);
+	}
+	mutex_unlock(&priv->conf_mutex);
+	up(&priv->scan.lock);
+	return ret;
+}
+
+void cw1200_update_filtering(struct cw1200_common *priv)
+{
+	int ret;
+	bool bssid_filtering = !priv->rx_filter.bssid;
+	bool is_p2p = priv->vif && priv->vif->p2p;
+	bool is_sta = priv->vif && NL80211_IFTYPE_STATION == priv->vif->type;
+
+	static struct wsm_beacon_filter_control bf_ctrl;
+	static struct wsm_mib_beacon_filter_table bf_tbl = {
+		.entry[0].ie_id = WLAN_EID_VENDOR_SPECIFIC,
+		.entry[0].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+					WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+					WSM_BEACON_FILTER_IE_HAS_APPEARED,
+		.entry[0].oui[0] = 0x50,
+		.entry[0].oui[1] = 0x6F,
+		.entry[0].oui[2] = 0x9A,
+		.entry[1].ie_id = WLAN_EID_HT_OPERATION,
+		.entry[1].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+					WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+					WSM_BEACON_FILTER_IE_HAS_APPEARED,
+		.entry[2].ie_id = WLAN_EID_ERP_INFO,
+		.entry[2].flags = WSM_BEACON_FILTER_IE_HAS_CHANGED |
+					WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT |
+					WSM_BEACON_FILTER_IE_HAS_APPEARED,
+	};
+
+	if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE)
+		return;
+	else if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
+		bssid_filtering = false;
+
+	if (priv->disable_beacon_filter) {
+		bf_ctrl.enabled = 0;
+		bf_ctrl.bcn_count = 1;
+		bf_tbl.num = __cpu_to_le32(0);
+	} else if (is_p2p || !is_sta) {
+		bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE |
+			WSM_BEACON_FILTER_AUTO_ERP;
+		bf_ctrl.bcn_count = 0;
+		bf_tbl.num = __cpu_to_le32(2);
+	} else {
+		bf_ctrl.enabled = WSM_BEACON_FILTER_ENABLE;
+		bf_ctrl.bcn_count = 0;
+		bf_tbl.num = __cpu_to_le32(3);
+	}
+
+	/*
+	* When acting as p2p client being connected to p2p GO, in order to
+	* receive frames from a different p2p device, turn off bssid filter.
+	*
+	* WARNING: FW dependency!
+	* This can only be used with FW WSM371 and its successors.
+	* In that FW version even with bssid filter turned off,
+	* device will block most of the unwanted frames.
+	*/
+	if (is_p2p)
+		bssid_filtering = false;
+
+	ret = wsm_set_rx_filter(priv, &priv->rx_filter);
+	if (!ret)
+		ret = wsm_set_beacon_filter_table(priv, &bf_tbl);
+	if (!ret)
+		ret = wsm_beacon_filter_control(priv, &bf_ctrl);
+	if (!ret)
+		ret = wsm_set_bssid_filtering(priv, bssid_filtering);
+	if (!ret)
+		ret = wsm_set_multicast_filter(priv, &priv->multicast_filter);
+	if (ret)
+		wiphy_err(priv->hw->wiphy,
+			  "Update filtering failed: %d.\n", ret);
+	return;
+}
+
+void cw1200_update_filtering_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common,
+			     update_filtering_work);
+
+	cw1200_update_filtering(priv);
+}
+
+void cw1200_set_beacon_wakeup_period_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common,
+			     set_beacon_wakeup_period_work);
+
+	wsm_set_beacon_wakeup_period(priv,
+				     priv->beacon_int * priv->join_dtim_period >
+				     MAX_BEACON_SKIP_TIME_MS ? 1 :
+				     priv->join_dtim_period, 0);
+}
+
+u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
+			     struct netdev_hw_addr_list *mc_list)
+{
+	static u8 broadcast_ipv6[ETH_ALEN] = {
+		0x33, 0x33, 0x00, 0x00, 0x00, 0x01
+	};
+	static u8 broadcast_ipv4[ETH_ALEN] = {
+		0x01, 0x00, 0x5e, 0x00, 0x00, 0x01
+	};
+	struct cw1200_common *priv = hw->priv;
+	struct netdev_hw_addr *ha;
+	int count = 0;
+
+	/* Disable multicast filtering */
+	priv->has_multicast_subscription = false;
+	memset(&priv->multicast_filter, 0x00, sizeof(priv->multicast_filter));
+
+	if (netdev_hw_addr_list_count(mc_list) > WSM_MAX_GRP_ADDRTABLE_ENTRIES)
+		return 0;
+
+	/* Enable if requested */
+	netdev_hw_addr_list_for_each(ha, mc_list) {
+		pr_debug("[STA] multicast: %pM\n", ha->addr);
+		memcpy(&priv->multicast_filter.macaddrs[count],
+		       ha->addr, ETH_ALEN);
+		if (memcmp(ha->addr, broadcast_ipv4, ETH_ALEN) &&
+		    memcmp(ha->addr, broadcast_ipv6, ETH_ALEN))
+			priv->has_multicast_subscription = true;
+		count++;
+	}
+
+	if (count) {
+		priv->multicast_filter.enable = __cpu_to_le32(1);
+		priv->multicast_filter.num_addrs = __cpu_to_le32(count);
+	}
+
+	return netdev_hw_addr_list_count(mc_list);
+}
+
+void cw1200_configure_filter(struct ieee80211_hw *dev,
+			     unsigned int changed_flags,
+			     unsigned int *total_flags,
+			     u64 multicast)
+{
+	struct cw1200_common *priv = dev->priv;
+	bool listening = !!(*total_flags &
+			    (FIF_PROMISC_IN_BSS |
+			     FIF_OTHER_BSS |
+			     FIF_BCN_PRBRESP_PROMISC |
+			     FIF_PROBE_REQ));
+
+	*total_flags &= FIF_PROMISC_IN_BSS |
+			FIF_OTHER_BSS |
+			FIF_FCSFAIL |
+			FIF_BCN_PRBRESP_PROMISC |
+			FIF_PROBE_REQ;
+
+	down(&priv->scan.lock);
+	mutex_lock(&priv->conf_mutex);
+
+	priv->rx_filter.promiscuous = (*total_flags & FIF_PROMISC_IN_BSS)
+			? 1 : 0;
+	priv->rx_filter.bssid = (*total_flags & (FIF_OTHER_BSS |
+			FIF_PROBE_REQ)) ? 1 : 0;
+	priv->rx_filter.fcs = (*total_flags & FIF_FCSFAIL) ? 1 : 0;
+	priv->disable_beacon_filter = !(*total_flags &
+					(FIF_BCN_PRBRESP_PROMISC |
+					 FIF_PROMISC_IN_BSS |
+					 FIF_PROBE_REQ));
+	if (priv->listening != listening) {
+		priv->listening = listening;
+		wsm_lock_tx(priv);
+		cw1200_update_listening(priv, listening);
+		wsm_unlock_tx(priv);
+	}
+	cw1200_update_filtering(priv);
+	mutex_unlock(&priv->conf_mutex);
+	up(&priv->scan.lock);
+}
+
+int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
+		   u16 queue, const struct ieee80211_tx_queue_params *params)
+{
+	struct cw1200_common *priv = dev->priv;
+	int ret = 0;
+	/* To prevent re-applying PM request OID again and again*/
+	bool old_uapsd_flags;
+
+	mutex_lock(&priv->conf_mutex);
+
+	if (queue < dev->queues) {
+		old_uapsd_flags = priv->uapsd_info.uapsd_flags;
+
+		WSM_TX_QUEUE_SET(&priv->tx_queue_params, queue, 0, 0, 0);
+		ret = wsm_set_tx_queue_params(priv,
+					      &priv->tx_queue_params.params[queue], queue);
+		if (ret) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		WSM_EDCA_SET(&priv->edca, queue, params->aifs,
+			     params->cw_min, params->cw_max,
+			     params->txop, 0xc8,
+			     params->uapsd);
+		ret = wsm_set_edca_params(priv, &priv->edca);
+		if (ret) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		if (priv->mode == NL80211_IFTYPE_STATION) {
+			ret = cw1200_set_uapsd_param(priv, &priv->edca);
+			if (!ret && priv->setbssparams_done &&
+			    (priv->join_status == CW1200_JOIN_STATUS_STA) &&
+			    (old_uapsd_flags != priv->uapsd_info.uapsd_flags))
+				ret = cw1200_set_pm(priv, &priv->powersave_mode);
+		}
+	} else {
+		ret = -EINVAL;
+	}
+
+out:
+	mutex_unlock(&priv->conf_mutex);
+	return ret;
+}
+
+int cw1200_get_stats(struct ieee80211_hw *dev,
+		     struct ieee80211_low_level_stats *stats)
+{
+	struct cw1200_common *priv = dev->priv;
+
+	memcpy(stats, &priv->stats, sizeof(*stats));
+	return 0;
+}
+
+int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg)
+{
+	struct wsm_set_pm pm = *arg;
+
+	if (priv->uapsd_info.uapsd_flags != 0)
+		pm.mode &= ~WSM_PSM_FAST_PS_FLAG;
+
+	if (memcmp(&pm, &priv->firmware_ps_mode,
+		   sizeof(struct wsm_set_pm))) {
+		priv->firmware_ps_mode = pm;
+		return wsm_set_pm(priv, &pm);
+	} else {
+		return 0;
+	}
+}
+
+int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
+		   struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+		   struct ieee80211_key_conf *key)
+{
+	int ret = -EOPNOTSUPP;
+	struct cw1200_common *priv = dev->priv;
+	struct ieee80211_key_seq seq;
+
+	mutex_lock(&priv->conf_mutex);
+
+	if (cmd == SET_KEY) {
+		u8 *peer_addr = NULL;
+		int pairwise = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ?
+			1 : 0;
+		int idx = cw1200_alloc_key(priv);
+		struct wsm_add_key *wsm_key = &priv->keys[idx];
+
+		if (idx < 0) {
+			ret = -EINVAL;
+			goto finally;
+		}
+
+		if (sta)
+			peer_addr = sta->addr;
+
+		key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
+
+		switch (key->cipher) {
+		case WLAN_CIPHER_SUITE_WEP40:
+		case WLAN_CIPHER_SUITE_WEP104:
+			if (key->keylen > 16) {
+				cw1200_free_key(priv, idx);
+				ret = -EINVAL;
+				goto finally;
+			}
+
+			if (pairwise) {
+				wsm_key->type = WSM_KEY_TYPE_WEP_PAIRWISE;
+				memcpy(wsm_key->wep_pairwise.peer,
+				       peer_addr, ETH_ALEN);
+				memcpy(wsm_key->wep_pairwise.keydata,
+				       &key->key[0], key->keylen);
+				wsm_key->wep_pairwise.keylen = key->keylen;
+			} else {
+				wsm_key->type = WSM_KEY_TYPE_WEP_DEFAULT;
+				memcpy(wsm_key->wep_group.keydata,
+				       &key->key[0], key->keylen);
+				wsm_key->wep_group.keylen = key->keylen;
+				wsm_key->wep_group.keyid = key->keyidx;
+			}
+			break;
+		case WLAN_CIPHER_SUITE_TKIP:
+			ieee80211_get_key_rx_seq(key, 0, &seq);
+			if (pairwise) {
+				wsm_key->type = WSM_KEY_TYPE_TKIP_PAIRWISE;
+				memcpy(wsm_key->tkip_pairwise.peer,
+				       peer_addr, ETH_ALEN);
+				memcpy(wsm_key->tkip_pairwise.keydata,
+				       &key->key[0], 16);
+				memcpy(wsm_key->tkip_pairwise.tx_mic_key,
+				       &key->key[16], 8);
+				memcpy(wsm_key->tkip_pairwise.rx_mic_key,
+				       &key->key[24], 8);
+			} else {
+				size_t mic_offset =
+					(priv->mode == NL80211_IFTYPE_AP) ?
+					16 : 24;
+				wsm_key->type = WSM_KEY_TYPE_TKIP_GROUP;
+				memcpy(wsm_key->tkip_group.keydata,
+				       &key->key[0], 16);
+				memcpy(wsm_key->tkip_group.rx_mic_key,
+				       &key->key[mic_offset], 8);
+
+				wsm_key->tkip_group.rx_seqnum[0] = seq.tkip.iv16 & 0xff;
+				wsm_key->tkip_group.rx_seqnum[1] = (seq.tkip.iv16 >> 8) & 0xff;
+				wsm_key->tkip_group.rx_seqnum[2] = seq.tkip.iv32 & 0xff;
+				wsm_key->tkip_group.rx_seqnum[3] = (seq.tkip.iv32 >> 8) & 0xff;
+				wsm_key->tkip_group.rx_seqnum[4] = (seq.tkip.iv32 >> 16) & 0xff;
+				wsm_key->tkip_group.rx_seqnum[5] = (seq.tkip.iv32 >> 24) & 0xff;
+				wsm_key->tkip_group.rx_seqnum[6] = 0;
+				wsm_key->tkip_group.rx_seqnum[7] = 0;
+
+				wsm_key->tkip_group.keyid = key->keyidx;
+			}
+			break;
+		case WLAN_CIPHER_SUITE_CCMP:
+			ieee80211_get_key_rx_seq(key, 0, &seq);
+			if (pairwise) {
+				wsm_key->type = WSM_KEY_TYPE_AES_PAIRWISE;
+				memcpy(wsm_key->aes_pairwise.peer,
+				       peer_addr, ETH_ALEN);
+				memcpy(wsm_key->aes_pairwise.keydata,
+				       &key->key[0], 16);
+			} else {
+				wsm_key->type = WSM_KEY_TYPE_AES_GROUP;
+				memcpy(wsm_key->aes_group.keydata,
+				       &key->key[0], 16);
+
+				wsm_key->aes_group.rx_seqnum[0] = seq.ccmp.pn[5];
+				wsm_key->aes_group.rx_seqnum[1] = seq.ccmp.pn[4];
+				wsm_key->aes_group.rx_seqnum[2] = seq.ccmp.pn[3];
+				wsm_key->aes_group.rx_seqnum[3] = seq.ccmp.pn[2];
+				wsm_key->aes_group.rx_seqnum[4] = seq.ccmp.pn[1];
+				wsm_key->aes_group.rx_seqnum[5] = seq.ccmp.pn[0];
+				wsm_key->aes_group.rx_seqnum[6] = 0;
+				wsm_key->aes_group.rx_seqnum[7] = 0;
+				wsm_key->aes_group.keyid = key->keyidx;
+			}
+			break;
+		case WLAN_CIPHER_SUITE_SMS4:
+			if (pairwise) {
+				wsm_key->type = WSM_KEY_TYPE_WAPI_PAIRWISE;
+				memcpy(wsm_key->wapi_pairwise.peer,
+				       peer_addr, ETH_ALEN);
+				memcpy(wsm_key->wapi_pairwise.keydata,
+				       &key->key[0], 16);
+				memcpy(wsm_key->wapi_pairwise.mic_key,
+				       &key->key[16], 16);
+				wsm_key->wapi_pairwise.keyid = key->keyidx;
+			} else {
+				wsm_key->type = WSM_KEY_TYPE_WAPI_GROUP;
+				memcpy(wsm_key->wapi_group.keydata,
+				       &key->key[0],  16);
+				memcpy(wsm_key->wapi_group.mic_key,
+				       &key->key[16], 16);
+				wsm_key->wapi_group.keyid = key->keyidx;
+			}
+			break;
+		default:
+			pr_warn("Unhandled key type %d\n", key->cipher);
+			cw1200_free_key(priv, idx);
+			ret = -EOPNOTSUPP;
+			goto finally;
+		}
+		ret = wsm_add_key(priv, wsm_key);
+		if (!ret)
+			key->hw_key_idx = idx;
+		else
+			cw1200_free_key(priv, idx);
+	} else if (cmd == DISABLE_KEY) {
+		struct wsm_remove_key wsm_key = {
+			.index = key->hw_key_idx,
+		};
+
+		if (wsm_key.index > WSM_KEY_MAX_INDEX) {
+			ret = -EINVAL;
+			goto finally;
+		}
+
+		cw1200_free_key(priv, wsm_key.index);
+		ret = wsm_remove_key(priv, &wsm_key);
+	} else {
+		pr_warn("Unhandled key command %d\n", cmd);
+	}
+
+finally:
+	mutex_unlock(&priv->conf_mutex);
+	return ret;
+}
+
+void cw1200_wep_key_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, wep_key_work);
+	u8 queue_id = cw1200_queue_get_queue_id(priv->pending_frame_id);
+	struct cw1200_queue *queue = &priv->tx_queue[queue_id];
+	__le32 wep_default_key_id = __cpu_to_le32(
+		priv->wep_default_key_id);
+
+	pr_debug("[STA] Setting default WEP key: %d\n",
+		 priv->wep_default_key_id);
+	wsm_flush_tx(priv);
+	wsm_write_mib(priv, WSM_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID,
+		      &wep_default_key_id, sizeof(wep_default_key_id));
+	cw1200_queue_requeue(queue, priv->pending_frame_id);
+	wsm_unlock_tx(priv);
+}
+
+int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	int ret = 0;
+	__le32 val32;
+	struct cw1200_common *priv = hw->priv;
+
+	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+		return 0;
+
+	if (value != (u32) -1)
+		val32 = __cpu_to_le32(value);
+	else
+		val32 = 0; /* disabled */
+
+	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
+		/* device is down, can _not_ set threshold */
+		ret = -ENODEV;
+		goto out;
+	}
+
+	if (priv->rts_threshold == value)
+		goto out;
+
+	pr_debug("[STA] Setting RTS threshold: %d\n",
+		 priv->rts_threshold);
+
+	/* mutex_lock(&priv->conf_mutex); */
+	ret = wsm_write_mib(priv, WSM_MIB_ID_DOT11_RTS_THRESHOLD,
+			    &val32, sizeof(val32));
+	if (!ret)
+		priv->rts_threshold = value;
+	/* mutex_unlock(&priv->conf_mutex); */
+
+out:
+	return ret;
+}
+
+/* If successful, LOCKS the TX queue! */
+static int __cw1200_flush(struct cw1200_common *priv, bool drop)
+{
+	int i, ret;
+
+	for (;;) {
+		/* TODO: correct flush handling is required when dev_stop.
+		 * Temporary workaround: 2s
+		 */
+		if (drop) {
+			for (i = 0; i < 4; ++i)
+				cw1200_queue_clear(&priv->tx_queue[i]);
+		} else {
+			ret = wait_event_timeout(
+				priv->tx_queue_stats.wait_link_id_empty,
+				cw1200_queue_stats_is_empty(
+					&priv->tx_queue_stats, -1),
+				2 * HZ);
+		}
+
+		if (!drop && ret <= 0) {
+			ret = -ETIMEDOUT;
+			break;
+		} else {
+			ret = 0;
+		}
+
+		wsm_lock_tx(priv);
+		if (!cw1200_queue_stats_is_empty(&priv->tx_queue_stats, -1)) {
+			/* Highly unlikely: WSM requeued frames. */
+			wsm_unlock_tx(priv);
+			continue;
+		}
+		break;
+	}
+	return ret;
+}
+
+void cw1200_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
+{
+	struct cw1200_common *priv = hw->priv;
+
+	switch (priv->mode) {
+	case NL80211_IFTYPE_MONITOR:
+		drop = true;
+		break;
+	case NL80211_IFTYPE_AP:
+		if (!priv->enable_beacon)
+			drop = true;
+		break;
+	}
+
+	if (!__cw1200_flush(priv, drop))
+		wsm_unlock_tx(priv);
+
+	return;
+}
+
+/* ******************************************************************** */
+/* WSM callbacks							*/
+
+void cw1200_free_event_queue(struct cw1200_common *priv)
+{
+	LIST_HEAD(list);
+
+	spin_lock(&priv->event_queue_lock);
+	list_splice_init(&priv->event_queue, &list);
+	spin_unlock(&priv->event_queue_lock);
+
+	__cw1200_free_event_queue(&list);
+}
+
+void cw1200_event_handler(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, event_handler);
+	struct cw1200_wsm_event *event;
+	LIST_HEAD(list);
+
+	spin_lock(&priv->event_queue_lock);
+	list_splice_init(&priv->event_queue, &list);
+	spin_unlock(&priv->event_queue_lock);
+
+	list_for_each_entry(event, &list, link) {
+		switch (event->evt.id) {
+		case WSM_EVENT_ERROR:
+			pr_err("Unhandled WSM Error from LMAC\n");
+			break;
+		case WSM_EVENT_BSS_LOST:
+			pr_debug("[CQM] BSS lost.\n");
+			cancel_work_sync(&priv->unjoin_work);
+			if (!down_trylock(&priv->scan.lock)) {
+				cw1200_cqm_bssloss_sm(priv, 1, 0, 0);
+				up(&priv->scan.lock);
+			} else {
+				/* Scan is in progress. Delay reporting.
+				 * Scan complete will trigger bss_loss_work
+				 */
+				priv->delayed_link_loss = 1;
+				/* Also start a watchdog. */
+				queue_delayed_work(priv->workqueue,
+						   &priv->bss_loss_work, 5*HZ);
+			}
+			break;
+		case WSM_EVENT_BSS_REGAINED:
+			pr_debug("[CQM] BSS regained.\n");
+			cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
+			cancel_work_sync(&priv->unjoin_work);
+			break;
+		case WSM_EVENT_RADAR_DETECTED:
+			wiphy_info(priv->hw->wiphy, "radar pulse detected\n");
+			break;
+		case WSM_EVENT_RCPI_RSSI:
+		{
+			/* RSSI: signed Q8.0, RCPI: unsigned Q7.1
+			 * RSSI = RCPI / 2 - 110
+			 */
+			int rcpiRssi = (int)(event->evt.data & 0xFF);
+			int cqm_evt;
+			if (priv->cqm_use_rssi)
+				rcpiRssi = (s8)rcpiRssi;
+			else
+				rcpiRssi =  rcpiRssi / 2 - 110;
+
+			cqm_evt = (rcpiRssi <= priv->cqm_rssi_thold) ?
+				NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW :
+				NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
+			pr_debug("[CQM] RSSI event: %d.\n", rcpiRssi);
+			ieee80211_cqm_rssi_notify(priv->vif, cqm_evt,
+						  GFP_KERNEL);
+			break;
+		}
+		case WSM_EVENT_BT_INACTIVE:
+			pr_warn("Unhandled BT INACTIVE from LMAC\n");
+			break;
+		case WSM_EVENT_BT_ACTIVE:
+			pr_warn("Unhandled BT ACTIVE from LMAC\n");
+			break;
+		}
+	}
+	__cw1200_free_event_queue(&list);
+}
+
+void cw1200_bss_loss_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, bss_loss_work.work);
+
+	pr_debug("[CQM] Reporting connection loss.\n");
+	wsm_lock_tx(priv);
+	if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+		wsm_unlock_tx(priv);
+}
+
+void cw1200_bss_params_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, bss_params_work);
+	mutex_lock(&priv->conf_mutex);
+
+	priv->bss_params.reset_beacon_loss = 1;
+	wsm_set_bss_params(priv, &priv->bss_params);
+	priv->bss_params.reset_beacon_loss = 0;
+
+	mutex_unlock(&priv->conf_mutex);
+}
+
+/* ******************************************************************** */
+/* Internal API								*/
+
+/*
+ * This function is called to Parse the SDD file
+ * to extract listen_interval and PTA related information
+ * sdd is a TLV: u8 id, u8 len, u8 data[]
+ */
+static int cw1200_parse_sdd_file(struct cw1200_common *priv)
+{
+	const u8 *p = priv->sdd->data;
+	int ret = 0;
+
+	while (p + 2 <= priv->sdd->data + priv->sdd->size) {
+		if (p + p[1] + 2 > priv->sdd->data + priv->sdd->size) {
+			pr_warn("Malformed sdd structure\n");
+			return -1;
+		}
+		switch (p[0]) {
+		case SDD_PTA_CFG_ELT_ID: {
+			u16 v;
+			if (p[1] < 4) {
+				pr_warn("SDD_PTA_CFG_ELT_ID malformed\n");
+				ret = -1;
+				break;
+			}
+			v = le16_to_cpu(*((u16 *)(p + 2)));
+			if (!v)  /* non-zero means this is enabled */
+				break;
+
+			v = le16_to_cpu(*((u16 *)(p + 4)));
+			priv->conf_listen_interval = (v >> 7) & 0x1F;
+			pr_debug("PTA found; Listen Interval %d\n",
+				 priv->conf_listen_interval);
+			break;
+		}
+		case SDD_REFERENCE_FREQUENCY_ELT_ID: {
+			u16 clk = le16_to_cpu(*((u16 *)(p + 2)));
+			if (clk != priv->hw_refclk)
+				pr_warn("SDD file doesn't match configured refclk (%d vs %d)\n",
+					clk, priv->hw_refclk);
+			break;
+		}
+		default:
+			break;
+		}
+		p += p[1] + 2;
+	}
+
+	if (!priv->bt_present) {
+		pr_debug("PTA element NOT found.\n");
+		priv->conf_listen_interval = 0;
+	}
+	return ret;
+}
+
+int cw1200_setup_mac(struct cw1200_common *priv)
+{
+	int ret = 0;
+
+	/* NOTE: There is a bug in FW: it reports signal
+	 * as RSSI if RSSI subscription is enabled.
+	 * It's not enough to set WSM_RCPI_RSSI_USE_RSSI.
+	 *
+	 * NOTE2: RSSI based reports have been switched to RCPI, since
+	 * FW has a bug and RSSI reported values are not stable,
+	 * what can leads to signal level oscilations in user-end applications
+	 */
+	struct wsm_rcpi_rssi_threshold threshold = {
+		.rssiRcpiMode = WSM_RCPI_RSSI_THRESHOLD_ENABLE |
+		WSM_RCPI_RSSI_DONT_USE_UPPER |
+		WSM_RCPI_RSSI_DONT_USE_LOWER,
+		.rollingAverageCount = 16,
+	};
+
+	struct wsm_configuration cfg = {
+		.dot11StationId = &priv->mac_addr[0],
+	};
+
+	/* Remember the decission here to make sure, we will handle
+	 * the RCPI/RSSI value correctly on WSM_EVENT_RCPI_RSS
+	 */
+	if (threshold.rssiRcpiMode & WSM_RCPI_RSSI_USE_RSSI)
+		priv->cqm_use_rssi = true;
+
+	if (!priv->sdd) {
+		ret = request_firmware(&priv->sdd, priv->sdd_path, priv->pdev);
+		if (ret) {
+			pr_err("Can't load sdd file %s.\n", priv->sdd_path);
+			return ret;
+		}
+		cw1200_parse_sdd_file(priv);
+	}
+
+	cfg.dpdData = priv->sdd->data;
+	cfg.dpdData_size = priv->sdd->size;
+	ret = wsm_configuration(priv, &cfg);
+	if (ret)
+		return ret;
+
+	/* Configure RSSI/SCPI reporting as RSSI. */
+	wsm_set_rcpi_rssi_threshold(priv, &threshold);
+
+	return 0;
+}
+
+static void cw1200_join_complete(struct cw1200_common *priv)
+{
+	pr_debug("[STA] Join complete (%d)\n", priv->join_complete_status);
+
+	priv->join_pending = false;
+	if (priv->join_complete_status) {
+		priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+		cw1200_update_listening(priv, priv->listening);
+		cw1200_do_unjoin(priv);
+		ieee80211_connection_loss(priv->vif);
+	} else {
+		if (priv->mode == NL80211_IFTYPE_ADHOC)
+			priv->join_status = CW1200_JOIN_STATUS_IBSS;
+		else
+			priv->join_status = CW1200_JOIN_STATUS_PRE_STA;
+	}
+	wsm_unlock_tx(priv); /* Clearing the lock held before do_join() */
+}
+
+void cw1200_join_complete_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, join_complete_work);
+	mutex_lock(&priv->conf_mutex);
+	cw1200_join_complete(priv);
+	mutex_unlock(&priv->conf_mutex);
+}
+
+void cw1200_join_complete_cb(struct cw1200_common *priv,
+			     struct wsm_join_complete *arg)
+{
+	pr_debug("[STA] cw1200_join_complete_cb called, status=%d.\n",
+		 arg->status);
+
+	if (cancel_delayed_work(&priv->join_timeout)) {
+		priv->join_complete_status = arg->status;
+		queue_work(priv->workqueue, &priv->join_complete_work);
+	}
+}
+
+/* MUST be called with tx_lock held!  It will be unlocked for us. */
+static void cw1200_do_join(struct cw1200_common *priv)
+{
+	const u8 *bssid;
+	struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
+	struct cfg80211_bss *bss = NULL;
+	struct wsm_protected_mgmt_policy mgmt_policy;
+	struct wsm_join join = {
+		.mode = conf->ibss_joined ?
+				WSM_JOIN_MODE_IBSS : WSM_JOIN_MODE_BSS,
+		.preamble_type = WSM_JOIN_PREAMBLE_LONG,
+		.probe_for_join = 1,
+		.atim_window = 0,
+		.basic_rate_set = cw1200_rate_mask_to_wsm(priv,
+							  conf->basic_rates),
+	};
+	if (delayed_work_pending(&priv->join_timeout)) {
+		pr_warn("[STA] - Join request already pending, skipping..\n");
+		wsm_unlock_tx(priv);
+		return;
+	}
+
+	if (priv->join_status)
+		cw1200_do_unjoin(priv);
+
+	bssid = priv->vif->bss_conf.bssid;
+
+	bss = cfg80211_get_bss(priv->hw->wiphy, priv->channel,
+			bssid, NULL, 0, 0, 0);
+
+	if (!bss && !conf->ibss_joined) {
+		wsm_unlock_tx(priv);
+		return;
+	}
+
+	mutex_lock(&priv->conf_mutex);
+
+	/* Under the conf lock: check scan status and
+	 * bail out if it is in progress.
+	 */
+	if (atomic_read(&priv->scan.in_progress)) {
+		wsm_unlock_tx(priv);
+		goto done_put;
+	}
+
+	priv->join_pending = true;
+
+	/* Sanity check basic rates */
+	if (!join.basic_rate_set)
+		join.basic_rate_set = 7;
+
+	/* Sanity check beacon interval */
+	if (!priv->beacon_int)
+		priv->beacon_int = 1;
+
+	join.beacon_interval = priv->beacon_int;
+
+	/* BT Coex related changes */
+	if (priv->bt_present) {
+		if (((priv->conf_listen_interval * 100) %
+		     priv->beacon_int) == 0)
+			priv->listen_interval =
+				((priv->conf_listen_interval * 100) /
+				 priv->beacon_int);
+		else
+			priv->listen_interval =
+				((priv->conf_listen_interval * 100) /
+				 priv->beacon_int + 1);
+	}
+
+	if (priv->hw->conf.ps_dtim_period)
+		priv->join_dtim_period = priv->hw->conf.ps_dtim_period;
+	join.dtim_period = priv->join_dtim_period;
+
+	join.channel_number = priv->channel->hw_value;
+	join.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
+		WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
+
+	memcpy(join.bssid, bssid, sizeof(join.bssid));
+
+	pr_debug("[STA] Join BSSID: %pM DTIM: %d, interval: %d\n",
+		 join.bssid,
+		 join.dtim_period, priv->beacon_int);
+
+	if (!conf->ibss_joined) {
+		const u8 *ssidie;
+		rcu_read_lock();
+		ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
+		if (ssidie) {
+			join.ssid_len = ssidie[1];
+			memcpy(join.ssid, &ssidie[2], join.ssid_len);
+		}
+		rcu_read_unlock();
+	}
+
+	if (priv->vif->p2p) {
+		join.flags |= WSM_JOIN_FLAGS_P2P_GO;
+		join.basic_rate_set =
+			cw1200_rate_mask_to_wsm(priv, 0xFF0);
+	}
+
+	/* Enable asynchronous join calls */
+	if (!conf->ibss_joined) {
+		join.flags |= WSM_JOIN_FLAGS_FORCE;
+		join.flags |= WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND;
+	}
+
+	wsm_flush_tx(priv);
+
+	/* Stay Awake for Join and Auth Timeouts and a bit more */
+	cw1200_pm_stay_awake(&priv->pm_state,
+			     CW1200_JOIN_TIMEOUT + CW1200_AUTH_TIMEOUT);
+
+	cw1200_update_listening(priv, false);
+
+	/* Turn on Block ACKs */
+	wsm_set_block_ack_policy(priv, priv->ba_tx_tid_mask,
+				 priv->ba_rx_tid_mask);
+
+	/* Set up timeout */
+	if (join.flags & WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND) {
+		priv->join_status = CW1200_JOIN_STATUS_JOINING;
+		queue_delayed_work(priv->workqueue,
+				   &priv->join_timeout,
+				   CW1200_JOIN_TIMEOUT);
+	}
+
+	/* 802.11w protected mgmt frames */
+	mgmt_policy.protectedMgmtEnable = 0;
+	mgmt_policy.unprotectedMgmtFramesAllowed = 1;
+	mgmt_policy.encryptionForAuthFrame = 1;
+	wsm_set_protected_mgmt_policy(priv, &mgmt_policy);
+
+	/* Perform actual join */
+	if (wsm_join(priv, &join)) {
+		pr_err("[STA] cw1200_join_work: wsm_join failed!\n");
+		cancel_delayed_work_sync(&priv->join_timeout);
+		cw1200_update_listening(priv, priv->listening);
+		/* Tx lock still held, unjoin will clear it. */
+		if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+			wsm_unlock_tx(priv);
+	} else {
+		if (!(join.flags & WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND))
+			cw1200_join_complete(priv); /* Will clear tx_lock */
+
+		/* Upload keys */
+		cw1200_upload_keys(priv);
+
+		/* Due to beacon filtering it is possible that the
+		 * AP's beacon is not known for the mac80211 stack.
+		 * Disable filtering temporary to make sure the stack
+		 * receives at least one
+		 */
+		priv->disable_beacon_filter = true;
+	}
+	cw1200_update_filtering(priv);
+
+done_put:
+	mutex_unlock(&priv->conf_mutex);
+	if (bss)
+		cfg80211_put_bss(priv->hw->wiphy, bss);
+}
+
+void cw1200_join_timeout(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, join_timeout.work);
+	pr_debug("[WSM] Join timed out.\n");
+	wsm_lock_tx(priv);
+	if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+		wsm_unlock_tx(priv);
+}
+
+static void cw1200_do_unjoin(struct cw1200_common *priv)
+{
+	struct wsm_reset reset = {
+		.reset_statistics = true,
+	};
+
+	cancel_delayed_work_sync(&priv->join_timeout);
+
+	mutex_lock(&priv->conf_mutex);
+	priv->join_pending = false;
+
+	if (atomic_read(&priv->scan.in_progress)) {
+		if (priv->delayed_unjoin)
+			wiphy_dbg(priv->hw->wiphy, "Delayed unjoin is already scheduled.\n");
+		else
+			priv->delayed_unjoin = true;
+		goto done;
+	}
+
+	priv->delayed_link_loss = false;
+
+	if (!priv->join_status)
+		goto done;
+
+	if (priv->join_status > CW1200_JOIN_STATUS_IBSS) {
+		wiphy_err(priv->hw->wiphy, "Unexpected: join status: %d\n",
+			  priv->join_status);
+		BUG_ON(1);
+	}
+
+	cancel_work_sync(&priv->update_filtering_work);
+	cancel_work_sync(&priv->set_beacon_wakeup_period_work);
+	priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+
+	/* Unjoin is a reset. */
+	wsm_flush_tx(priv);
+	wsm_keep_alive_period(priv, 0);
+	wsm_reset(priv, &reset);
+	wsm_set_output_power(priv, priv->output_power * 10);
+	priv->join_dtim_period = 0;
+	cw1200_setup_mac(priv);
+	cw1200_free_event_queue(priv);
+	cancel_work_sync(&priv->event_handler);
+	cw1200_update_listening(priv, priv->listening);
+	cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
+
+	/* Disable Block ACKs */
+	wsm_set_block_ack_policy(priv, 0, 0);
+
+	priv->disable_beacon_filter = false;
+	cw1200_update_filtering(priv);
+	memset(&priv->association_mode, 0,
+	       sizeof(priv->association_mode));
+	memset(&priv->bss_params, 0, sizeof(priv->bss_params));
+	priv->setbssparams_done = false;
+	memset(&priv->firmware_ps_mode, 0,
+	       sizeof(priv->firmware_ps_mode));
+
+	pr_debug("[STA] Unjoin completed.\n");
+
+done:
+	mutex_unlock(&priv->conf_mutex);
+}
+
+void cw1200_unjoin_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, unjoin_work);
+
+	cw1200_do_unjoin(priv);
+
+	/* Tell the stack we're dead */
+	ieee80211_connection_loss(priv->vif);
+
+	wsm_unlock_tx(priv);
+}
+
+int cw1200_enable_listening(struct cw1200_common *priv)
+{
+	struct wsm_start start = {
+		.mode = WSM_START_MODE_P2P_DEV,
+		.band = WSM_PHY_BAND_2_4G,
+		.beacon_interval = 100,
+		.dtim_period = 1,
+		.probe_delay = 0,
+		.basic_rate_set = 0x0F,
+	};
+
+	if (priv->channel) {
+		start.band = priv->channel->band == IEEE80211_BAND_5GHZ ?
+			     WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G;
+		start.channel_number = priv->channel->hw_value;
+	} else {
+		start.band = WSM_PHY_BAND_2_4G;
+		start.channel_number = 1;
+	}
+
+	return wsm_start(priv, &start);
+}
+
+int cw1200_disable_listening(struct cw1200_common *priv)
+{
+	int ret;
+	struct wsm_reset reset = {
+		.reset_statistics = true,
+	};
+	ret = wsm_reset(priv, &reset);
+	return ret;
+}
+
+void cw1200_update_listening(struct cw1200_common *priv, bool enabled)
+{
+	if (enabled) {
+		if (priv->join_status == CW1200_JOIN_STATUS_PASSIVE) {
+			if (!cw1200_enable_listening(priv))
+				priv->join_status = CW1200_JOIN_STATUS_MONITOR;
+			wsm_set_probe_responder(priv, true);
+		}
+	} else {
+		if (priv->join_status == CW1200_JOIN_STATUS_MONITOR) {
+			if (!cw1200_disable_listening(priv))
+				priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+			wsm_set_probe_responder(priv, false);
+		}
+	}
+}
+
+int cw1200_set_uapsd_param(struct cw1200_common *priv,
+			   const struct wsm_edca_params *arg)
+{
+	int ret;
+	u16 uapsd_flags = 0;
+
+	/* Here's the mapping AC [queue, bit]
+	 *  VO [0,3], VI [1, 2], BE [2, 1], BK [3, 0]
+	 */
+
+	if (arg->uapsd_enable[0])
+		uapsd_flags |= 1 << 3;
+
+	if (arg->uapsd_enable[1])
+		uapsd_flags |= 1 << 2;
+
+	if (arg->uapsd_enable[2])
+		uapsd_flags |= 1 << 1;
+
+	if (arg->uapsd_enable[3])
+		uapsd_flags |= 1;
+
+	/* Currently pseudo U-APSD operation is not supported, so setting
+	 * MinAutoTriggerInterval, MaxAutoTriggerInterval and
+	 * AutoTriggerStep to 0
+	 */
+
+	priv->uapsd_info.uapsd_flags = cpu_to_le16(uapsd_flags);
+	priv->uapsd_info.min_auto_trigger_interval = 0;
+	priv->uapsd_info.max_auto_trigger_interval = 0;
+	priv->uapsd_info.auto_trigger_step = 0;
+
+	ret = wsm_set_uapsd_info(priv, &priv->uapsd_info);
+	return ret;
+}
+
+/* ******************************************************************** */
+/* AP API								*/
+
+int cw1200_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		   struct ieee80211_sta *sta)
+{
+	struct cw1200_common *priv = hw->priv;
+	struct cw1200_sta_priv *sta_priv =
+			(struct cw1200_sta_priv *)&sta->drv_priv;
+	struct cw1200_link_entry *entry;
+	struct sk_buff *skb;
+
+	if (priv->mode != NL80211_IFTYPE_AP)
+		return 0;
+
+	sta_priv->link_id = cw1200_find_link_id(priv, sta->addr);
+	if (WARN_ON(!sta_priv->link_id)) {
+		wiphy_info(priv->hw->wiphy,
+			   "[AP] No more link IDs available.\n");
+		return -ENOENT;
+	}
+
+	entry = &priv->link_id_db[sta_priv->link_id - 1];
+	spin_lock_bh(&priv->ps_state_lock);
+	if ((sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) ==
+					IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
+		priv->sta_asleep_mask |= BIT(sta_priv->link_id);
+	entry->status = CW1200_LINK_HARD;
+	while ((skb = skb_dequeue(&entry->rx_queue)))
+		ieee80211_rx_irqsafe(priv->hw, skb);
+	spin_unlock_bh(&priv->ps_state_lock);
+	return 0;
+}
+
+int cw1200_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		      struct ieee80211_sta *sta)
+{
+	struct cw1200_common *priv = hw->priv;
+	struct cw1200_sta_priv *sta_priv =
+			(struct cw1200_sta_priv *)&sta->drv_priv;
+	struct cw1200_link_entry *entry;
+
+	if (priv->mode != NL80211_IFTYPE_AP || !sta_priv->link_id)
+		return 0;
+
+	entry = &priv->link_id_db[sta_priv->link_id - 1];
+	spin_lock_bh(&priv->ps_state_lock);
+	entry->status = CW1200_LINK_RESERVE;
+	entry->timestamp = jiffies;
+	wsm_lock_tx_async(priv);
+	if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
+		wsm_unlock_tx(priv);
+	spin_unlock_bh(&priv->ps_state_lock);
+	flush_workqueue(priv->workqueue);
+	return 0;
+}
+
+static void __cw1200_sta_notify(struct ieee80211_hw *dev,
+				struct ieee80211_vif *vif,
+				enum sta_notify_cmd notify_cmd,
+				int link_id)
+{
+	struct cw1200_common *priv = dev->priv;
+	u32 bit, prev;
+
+	/* Zero link id means "for all link IDs" */
+	if (link_id)
+		bit = BIT(link_id);
+	else if (WARN_ON_ONCE(notify_cmd != STA_NOTIFY_AWAKE))
+		bit = 0;
+	else
+		bit = priv->link_id_map;
+	prev = priv->sta_asleep_mask & bit;
+
+	switch (notify_cmd) {
+	case STA_NOTIFY_SLEEP:
+		if (!prev) {
+			if (priv->buffered_multicasts &&
+			    !priv->sta_asleep_mask)
+				queue_work(priv->workqueue,
+					   &priv->multicast_start_work);
+			priv->sta_asleep_mask |= bit;
+		}
+		break;
+	case STA_NOTIFY_AWAKE:
+		if (prev) {
+			priv->sta_asleep_mask &= ~bit;
+			priv->pspoll_mask &= ~bit;
+			if (priv->tx_multicast && link_id &&
+			    !priv->sta_asleep_mask)
+				queue_work(priv->workqueue,
+					   &priv->multicast_stop_work);
+			cw1200_bh_wakeup(priv);
+		}
+		break;
+	}
+}
+
+void cw1200_sta_notify(struct ieee80211_hw *dev,
+		       struct ieee80211_vif *vif,
+		       enum sta_notify_cmd notify_cmd,
+		       struct ieee80211_sta *sta)
+{
+	struct cw1200_common *priv = dev->priv;
+	struct cw1200_sta_priv *sta_priv =
+		(struct cw1200_sta_priv *)&sta->drv_priv;
+
+	spin_lock_bh(&priv->ps_state_lock);
+	__cw1200_sta_notify(dev, vif, notify_cmd, sta_priv->link_id);
+	spin_unlock_bh(&priv->ps_state_lock);
+}
+
+static void cw1200_ps_notify(struct cw1200_common *priv,
+		      int link_id, bool ps)
+{
+	if (link_id > CW1200_MAX_STA_IN_AP_MODE)
+		return;
+
+	pr_debug("%s for LinkId: %d. STAs asleep: %.8X\n",
+		 ps ? "Stop" : "Start",
+		 link_id, priv->sta_asleep_mask);
+
+	__cw1200_sta_notify(priv->hw, priv->vif,
+			    ps ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, link_id);
+}
+
+static int cw1200_set_tim_impl(struct cw1200_common *priv, bool aid0_bit_set)
+{
+	struct sk_buff *skb;
+	struct wsm_update_ie update_ie = {
+		.what = WSM_UPDATE_IE_BEACON,
+		.count = 1,
+	};
+	u16 tim_offset, tim_length;
+
+	pr_debug("[AP] mcast: %s.\n", aid0_bit_set ? "ena" : "dis");
+
+	skb = ieee80211_beacon_get_tim(priv->hw, priv->vif,
+			&tim_offset, &tim_length);
+	if (!skb) {
+		if (!__cw1200_flush(priv, true))
+			wsm_unlock_tx(priv);
+		return -ENOENT;
+	}
+
+	if (tim_offset && tim_length >= 6) {
+		/* Ignore DTIM count from mac80211:
+		 * firmware handles DTIM internally.
+		 */
+		skb->data[tim_offset + 2] = 0;
+
+		/* Set/reset aid0 bit */
+		if (aid0_bit_set)
+			skb->data[tim_offset + 4] |= 1;
+		else
+			skb->data[tim_offset + 4] &= ~1;
+	}
+
+	update_ie.ies = &skb->data[tim_offset];
+	update_ie.length = tim_length;
+	wsm_update_ie(priv, &update_ie);
+
+	dev_kfree_skb(skb);
+
+	return 0;
+}
+
+void cw1200_set_tim_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, set_tim_work);
+	(void)cw1200_set_tim_impl(priv, priv->aid0_bit_set);
+}
+
+int cw1200_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
+		   bool set)
+{
+	struct cw1200_common *priv = dev->priv;
+	queue_work(priv->workqueue, &priv->set_tim_work);
+	return 0;
+}
+
+void cw1200_set_cts_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, set_cts_work);
+
+	u8 erp_ie[3] = {WLAN_EID_ERP_INFO, 0x1, 0};
+	struct wsm_update_ie update_ie = {
+		.what = WSM_UPDATE_IE_BEACON,
+		.count = 1,
+		.ies = erp_ie,
+		.length = 3,
+	};
+	u32 erp_info;
+	__le32 use_cts_prot;
+	mutex_lock(&priv->conf_mutex);
+	erp_info = priv->erp_info;
+	mutex_unlock(&priv->conf_mutex);
+	use_cts_prot =
+		erp_info & WLAN_ERP_USE_PROTECTION ?
+		__cpu_to_le32(1) : 0;
+
+	erp_ie[ERP_INFO_BYTE_OFFSET] = erp_info;
+
+	pr_debug("[STA] ERP information 0x%x\n", erp_info);
+
+	wsm_write_mib(priv, WSM_MIB_ID_NON_ERP_PROTECTION,
+		      &use_cts_prot, sizeof(use_cts_prot));
+	wsm_update_ie(priv, &update_ie);
+
+	return;
+}
+
+static int cw1200_set_btcoexinfo(struct cw1200_common *priv)
+{
+	struct wsm_override_internal_txrate arg;
+	int ret = 0;
+
+	if (priv->mode == NL80211_IFTYPE_STATION) {
+		/* Plumb PSPOLL and NULL template */
+		cw1200_upload_pspoll(priv);
+		cw1200_upload_null(priv);
+		cw1200_upload_qosnull(priv);
+	} else {
+		return 0;
+	}
+
+	memset(&arg, 0, sizeof(struct wsm_override_internal_txrate));
+
+	if (!priv->vif->p2p) {
+		/* STATION mode */
+		if (priv->bss_params.operational_rate_set & ~0xF) {
+			pr_debug("[STA] STA has ERP rates\n");
+			/* G or BG mode */
+			arg.internalTxRate = (__ffs(
+			priv->bss_params.operational_rate_set & ~0xF));
+		} else {
+			pr_debug("[STA] STA has non ERP rates\n");
+			/* B only mode */
+			arg.internalTxRate = (__ffs(priv->association_mode.basic_rate_set));
+		}
+		arg.nonErpInternalTxRate = (__ffs(priv->association_mode.basic_rate_set));
+	} else {
+		/* P2P mode */
+		arg.internalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF));
+		arg.nonErpInternalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF));
+	}
+
+	pr_debug("[STA] BTCOEX_INFO MODE %d, internalTxRate : %x, nonErpInternalTxRate: %x\n",
+		 priv->mode,
+		 arg.internalTxRate,
+		 arg.nonErpInternalTxRate);
+
+	ret = wsm_write_mib(priv, WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE,
+			    &arg, sizeof(arg));
+
+	return ret;
+}
+
+void cw1200_bss_info_changed(struct ieee80211_hw *dev,
+			     struct ieee80211_vif *vif,
+			     struct ieee80211_bss_conf *info,
+			     u32 changed)
+{
+	struct cw1200_common *priv = dev->priv;
+	bool do_join = false;
+
+	mutex_lock(&priv->conf_mutex);
+
+	pr_debug("BSS CHANGED:  %08x\n", changed);
+
+	/* TODO: BSS_CHANGED_QOS */
+	/* TODO: BSS_CHANGED_TXPOWER */
+
+	if (changed & BSS_CHANGED_ARP_FILTER) {
+		struct wsm_mib_arp_ipv4_filter filter = {0};
+		int i;
+
+		pr_debug("[STA] BSS_CHANGED_ARP_FILTER cnt: %d\n",
+			 info->arp_addr_cnt);
+
+		/* Currently only one IP address is supported by firmware.
+		 * In case of more IPs arp filtering will be disabled.
+		 */
+		if (info->arp_addr_cnt > 0 &&
+		    info->arp_addr_cnt <= WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES) {
+			for (i = 0; i < info->arp_addr_cnt; i++) {
+				filter.ipv4addrs[i] = info->arp_addr_list[i];
+				pr_debug("[STA] addr[%d]: 0x%X\n",
+					 i, filter.ipv4addrs[i]);
+			}
+			filter.enable = __cpu_to_le32(1);
+		}
+
+		pr_debug("[STA] arp ip filter enable: %d\n",
+			 __le32_to_cpu(filter.enable));
+
+		wsm_set_arp_ipv4_filter(priv, &filter);
+	}
+
+	if (changed &
+	    (BSS_CHANGED_BEACON |
+	     BSS_CHANGED_AP_PROBE_RESP |
+	     BSS_CHANGED_BSSID |
+	     BSS_CHANGED_SSID |
+	     BSS_CHANGED_IBSS)) {
+		pr_debug("BSS_CHANGED_BEACON\n");
+		priv->beacon_int = info->beacon_int;
+		cw1200_update_beaconing(priv);
+		cw1200_upload_beacon(priv);
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED) {
+		pr_debug("BSS_CHANGED_BEACON_ENABLED (%d)\n", info->enable_beacon);
+
+		if (priv->enable_beacon != info->enable_beacon) {
+			cw1200_enable_beaconing(priv, info->enable_beacon);
+			priv->enable_beacon = info->enable_beacon;
+		}
+	}
+
+	if (changed & BSS_CHANGED_BEACON_INT) {
+		pr_debug("CHANGED_BEACON_INT\n");
+		if (info->ibss_joined)
+			do_join = true;
+		else if (priv->join_status == CW1200_JOIN_STATUS_AP)
+			cw1200_update_beaconing(priv);
+	}
+
+	/* assoc/disassoc, or maybe AID changed */
+	if (changed & BSS_CHANGED_ASSOC) {
+		wsm_lock_tx(priv);
+		priv->wep_default_key_id = -1;
+		wsm_unlock_tx(priv);
+	}
+
+	if (changed & BSS_CHANGED_BSSID) {
+		pr_debug("BSS_CHANGED_BSSID\n");
+		do_join = true;
+	}
+
+	if (changed &
+	    (BSS_CHANGED_ASSOC |
+	     BSS_CHANGED_BSSID |
+	     BSS_CHANGED_IBSS |
+	     BSS_CHANGED_BASIC_RATES |
+	     BSS_CHANGED_HT)) {
+		pr_debug("BSS_CHANGED_ASSOC\n");
+		if (info->assoc) {
+			if (priv->join_status < CW1200_JOIN_STATUS_PRE_STA) {
+				ieee80211_connection_loss(vif);
+				mutex_unlock(&priv->conf_mutex);
+				return;
+			} else if (priv->join_status == CW1200_JOIN_STATUS_PRE_STA) {
+				priv->join_status = CW1200_JOIN_STATUS_STA;
+			}
+		} else {
+			do_join = true;
+		}
+
+		if (info->assoc || info->ibss_joined) {
+			struct ieee80211_sta *sta = NULL;
+			u32 val = 0;
+
+			if (info->dtim_period)
+				priv->join_dtim_period = info->dtim_period;
+			priv->beacon_int = info->beacon_int;
+
+			rcu_read_lock();
+
+			if (info->bssid && !info->ibss_joined)
+				sta = ieee80211_find_sta(vif, info->bssid);
+			if (sta) {
+				priv->ht_info.ht_cap = sta->ht_cap;
+				priv->bss_params.operational_rate_set =
+					cw1200_rate_mask_to_wsm(priv,
+								sta->supp_rates[priv->channel->band]);
+				priv->ht_info.channel_type = cfg80211_get_chandef_type(&dev->conf.chandef);
+				priv->ht_info.operation_mode = info->ht_operation_mode;
+			} else {
+				memset(&priv->ht_info, 0,
+				       sizeof(priv->ht_info));
+				priv->bss_params.operational_rate_set = -1;
+			}
+			rcu_read_unlock();
+
+			/* Non Greenfield stations present */
+			if (priv->ht_info.operation_mode &
+			    IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT)
+				val |= WSM_NON_GREENFIELD_STA_PRESENT;
+
+			/* Set HT protection method */
+			val |= (priv->ht_info.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION) << 2;
+
+			/* TODO:
+			 * STBC_param.dual_cts
+			 *  STBC_param.LSIG_TXOP_FILL
+			 */
+
+			val = cpu_to_le32(val);
+			wsm_write_mib(priv, WSM_MIB_ID_SET_HT_PROTECTION,
+				      &val, sizeof(val));
+
+			priv->association_mode.greenfield =
+				cw1200_ht_greenfield(&priv->ht_info);
+			priv->association_mode.flags =
+				WSM_ASSOCIATION_MODE_SNOOP_ASSOC_FRAMES |
+				WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE |
+				WSM_ASSOCIATION_MODE_USE_HT_MODE |
+				WSM_ASSOCIATION_MODE_USE_BASIC_RATE_SET |
+				WSM_ASSOCIATION_MODE_USE_MPDU_START_SPACING;
+			priv->association_mode.preamble =
+				info->use_short_preamble ?
+				WSM_JOIN_PREAMBLE_SHORT :
+				WSM_JOIN_PREAMBLE_LONG;
+			priv->association_mode.basic_rate_set = __cpu_to_le32(
+				cw1200_rate_mask_to_wsm(priv,
+							info->basic_rates));
+			priv->association_mode.mpdu_start_spacing =
+				cw1200_ht_ampdu_density(&priv->ht_info);
+
+			cw1200_cqm_bssloss_sm(priv, 0, 0, 0);
+			cancel_work_sync(&priv->unjoin_work);
+
+			priv->bss_params.beacon_lost_count = priv->cqm_beacon_loss_count;
+			priv->bss_params.aid = info->aid;
+
+			if (priv->join_dtim_period < 1)
+				priv->join_dtim_period = 1;
+
+			pr_debug("[STA] DTIM %d, interval: %d\n",
+				 priv->join_dtim_period, priv->beacon_int);
+			pr_debug("[STA] Preamble: %d, Greenfield: %d, Aid: %d, Rates: 0x%.8X, Basic: 0x%.8X\n",
+				 priv->association_mode.preamble,
+				 priv->association_mode.greenfield,
+				 priv->bss_params.aid,
+				 priv->bss_params.operational_rate_set,
+				 priv->association_mode.basic_rate_set);
+			wsm_set_association_mode(priv, &priv->association_mode);
+
+			if (!info->ibss_joined) {
+				wsm_keep_alive_period(priv, 30 /* sec */);
+				wsm_set_bss_params(priv, &priv->bss_params);
+				priv->setbssparams_done = true;
+				cw1200_set_beacon_wakeup_period_work(&priv->set_beacon_wakeup_period_work);
+				cw1200_set_pm(priv, &priv->powersave_mode);
+			}
+			if (priv->vif->p2p) {
+				pr_debug("[STA] Setting p2p powersave configuration.\n");
+				wsm_set_p2p_ps_modeinfo(priv,
+							&priv->p2p_ps_modeinfo);
+			}
+			if (priv->bt_present)
+				cw1200_set_btcoexinfo(priv);
+		} else {
+			memset(&priv->association_mode, 0,
+			       sizeof(priv->association_mode));
+			memset(&priv->bss_params, 0, sizeof(priv->bss_params));
+		}
+	}
+
+	/* ERP Protection */
+	if (changed & (BSS_CHANGED_ASSOC |
+		       BSS_CHANGED_ERP_CTS_PROT |
+		       BSS_CHANGED_ERP_PREAMBLE)) {
+		u32 prev_erp_info = priv->erp_info;
+		if (info->use_cts_prot)
+			priv->erp_info |= WLAN_ERP_USE_PROTECTION;
+		else if (!(prev_erp_info & WLAN_ERP_NON_ERP_PRESENT))
+			priv->erp_info &= ~WLAN_ERP_USE_PROTECTION;
+
+		if (info->use_short_preamble)
+			priv->erp_info |= WLAN_ERP_BARKER_PREAMBLE;
+		else
+			priv->erp_info &= ~WLAN_ERP_BARKER_PREAMBLE;
+
+		pr_debug("[STA] ERP Protection: %x\n", priv->erp_info);
+
+		if (prev_erp_info != priv->erp_info)
+			queue_work(priv->workqueue, &priv->set_cts_work);
+	}
+
+	/* ERP Slottime */
+	if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_SLOT)) {
+		__le32 slot_time = info->use_short_slot ?
+			__cpu_to_le32(9) : __cpu_to_le32(20);
+		pr_debug("[STA] Slot time: %d us.\n",
+			 __le32_to_cpu(slot_time));
+		wsm_write_mib(priv, WSM_MIB_ID_DOT11_SLOT_TIME,
+			      &slot_time, sizeof(slot_time));
+	}
+
+	if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_CQM)) {
+		struct wsm_rcpi_rssi_threshold threshold = {
+			.rollingAverageCount = 8,
+		};
+		pr_debug("[CQM] RSSI threshold subscribe: %d +- %d\n",
+			 info->cqm_rssi_thold, info->cqm_rssi_hyst);
+		priv->cqm_rssi_thold = info->cqm_rssi_thold;
+		priv->cqm_rssi_hyst = info->cqm_rssi_hyst;
+
+		if (info->cqm_rssi_thold || info->cqm_rssi_hyst) {
+			/* RSSI subscription enabled */
+			/* TODO: It's not a correct way of setting threshold.
+			 * Upper and lower must be set equal here and adjusted
+			 * in callback. However current implementation is much
+			 * more relaible and stable.
+			 */
+
+			/* RSSI: signed Q8.0, RCPI: unsigned Q7.1
+			 * RSSI = RCPI / 2 - 110
+			 */
+			if (priv->cqm_use_rssi) {
+				threshold.upperThreshold =
+					info->cqm_rssi_thold + info->cqm_rssi_hyst;
+				threshold.lowerThreshold =
+					info->cqm_rssi_thold;
+				threshold.rssiRcpiMode |= WSM_RCPI_RSSI_USE_RSSI;
+			} else {
+				threshold.upperThreshold = (info->cqm_rssi_thold + info->cqm_rssi_hyst + 110) * 2;
+				threshold.lowerThreshold = (info->cqm_rssi_thold + 110) * 2;
+			}
+			threshold.rssiRcpiMode |= WSM_RCPI_RSSI_THRESHOLD_ENABLE;
+		} else {
+			/* There is a bug in FW, see sta.c. We have to enable
+			 * dummy subscription to get correct RSSI values.
+			 */
+			threshold.rssiRcpiMode |=
+				WSM_RCPI_RSSI_THRESHOLD_ENABLE |
+				WSM_RCPI_RSSI_DONT_USE_UPPER |
+				WSM_RCPI_RSSI_DONT_USE_LOWER;
+			if (priv->cqm_use_rssi)
+				threshold.rssiRcpiMode |= WSM_RCPI_RSSI_USE_RSSI;
+		}
+		wsm_set_rcpi_rssi_threshold(priv, &threshold);
+	}
+	mutex_unlock(&priv->conf_mutex);
+
+	if (do_join) {
+		wsm_lock_tx(priv);
+		cw1200_do_join(priv); /* Will unlock it for us */
+	}
+}
+
+void cw1200_multicast_start_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, multicast_start_work);
+	long tmo = priv->join_dtim_period *
+			(priv->beacon_int + 20) * HZ / 1024;
+
+	cancel_work_sync(&priv->multicast_stop_work);
+
+	if (!priv->aid0_bit_set) {
+		wsm_lock_tx(priv);
+		cw1200_set_tim_impl(priv, true);
+		priv->aid0_bit_set = true;
+		mod_timer(&priv->mcast_timeout, jiffies + tmo);
+		wsm_unlock_tx(priv);
+	}
+}
+
+void cw1200_multicast_stop_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, multicast_stop_work);
+
+	if (priv->aid0_bit_set) {
+		del_timer_sync(&priv->mcast_timeout);
+		wsm_lock_tx(priv);
+		priv->aid0_bit_set = false;
+		cw1200_set_tim_impl(priv, false);
+		wsm_unlock_tx(priv);
+	}
+}
+
+void cw1200_mcast_timeout(unsigned long arg)
+{
+	struct cw1200_common *priv =
+		(struct cw1200_common *)arg;
+
+	wiphy_warn(priv->hw->wiphy,
+		   "Multicast delivery timeout.\n");
+	spin_lock_bh(&priv->ps_state_lock);
+	priv->tx_multicast = priv->aid0_bit_set &&
+			priv->buffered_multicasts;
+	if (priv->tx_multicast)
+		cw1200_bh_wakeup(priv);
+	spin_unlock_bh(&priv->ps_state_lock);
+}
+
+int cw1200_ampdu_action(struct ieee80211_hw *hw,
+			struct ieee80211_vif *vif,
+			enum ieee80211_ampdu_mlme_action action,
+			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+			u8 buf_size)
+{
+	/* Aggregation is implemented fully in firmware,
+	 * including block ack negotiation. Do not allow
+	 * mac80211 stack to do anything: it interferes with
+	 * the firmware.
+	 */
+
+	/* Note that we still need this function stubbed. */
+	return -ENOTSUPP;
+}
+
+/* ******************************************************************** */
+/* WSM callback								*/
+void cw1200_suspend_resume(struct cw1200_common *priv,
+			  struct wsm_suspend_resume *arg)
+{
+	pr_debug("[AP] %s: %s\n",
+		 arg->stop ? "stop" : "start",
+		 arg->multicast ? "broadcast" : "unicast");
+
+	if (arg->multicast) {
+		bool cancel_tmo = false;
+		spin_lock_bh(&priv->ps_state_lock);
+		if (arg->stop) {
+			priv->tx_multicast = false;
+		} else {
+			/* Firmware sends this indication every DTIM if there
+			 * is a STA in powersave connected. There is no reason
+			 * to suspend, following wakeup will consume much more
+			 * power than it could be saved.
+			 */
+			cw1200_pm_stay_awake(&priv->pm_state,
+					     priv->join_dtim_period *
+					     (priv->beacon_int + 20) * HZ / 1024);
+			priv->tx_multicast = (priv->aid0_bit_set &&
+					      priv->buffered_multicasts);
+			if (priv->tx_multicast) {
+				cancel_tmo = true;
+				cw1200_bh_wakeup(priv);
+			}
+		}
+		spin_unlock_bh(&priv->ps_state_lock);
+		if (cancel_tmo)
+			del_timer_sync(&priv->mcast_timeout);
+	} else {
+		spin_lock_bh(&priv->ps_state_lock);
+		cw1200_ps_notify(priv, arg->link_id, arg->stop);
+		spin_unlock_bh(&priv->ps_state_lock);
+		if (!arg->stop)
+			cw1200_bh_wakeup(priv);
+	}
+	return;
+}
+
+/* ******************************************************************** */
+/* AP privates								*/
+
+static int cw1200_upload_beacon(struct cw1200_common *priv)
+{
+	int ret = 0;
+	struct ieee80211_mgmt *mgmt;
+	struct wsm_template_frame frame = {
+		.frame_type = WSM_FRAME_TYPE_BEACON,
+	};
+
+	u16 tim_offset;
+	u16 tim_len;
+
+	if (priv->mode == NL80211_IFTYPE_STATION ||
+	    priv->mode == NL80211_IFTYPE_MONITOR ||
+	    priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+		goto done;
+
+	if (priv->vif->p2p)
+		frame.rate = WSM_TRANSMIT_RATE_6;
+
+	frame.skb = ieee80211_beacon_get_tim(priv->hw, priv->vif,
+					     &tim_offset, &tim_len);
+	if (!frame.skb)
+		return -ENOMEM;
+
+	ret = wsm_set_template_frame(priv, &frame);
+
+	if (ret)
+		goto done;
+
+	/* TODO: Distill probe resp; remove TIM
+	 * and any other beacon-specific IEs
+	 */
+	mgmt = (void *)frame.skb->data;
+	mgmt->frame_control =
+		__cpu_to_le16(IEEE80211_FTYPE_MGMT |
+			      IEEE80211_STYPE_PROBE_RESP);
+
+	frame.frame_type = WSM_FRAME_TYPE_PROBE_RESPONSE;
+	if (priv->vif->p2p) {
+		ret = wsm_set_probe_responder(priv, true);
+	} else {
+		ret = wsm_set_template_frame(priv, &frame);
+		wsm_set_probe_responder(priv, false);
+	}
+
+done:
+	dev_kfree_skb(frame.skb);
+
+	return ret;
+}
+
+static int cw1200_upload_pspoll(struct cw1200_common *priv)
+{
+	int ret = 0;
+	struct wsm_template_frame frame = {
+		.frame_type = WSM_FRAME_TYPE_PS_POLL,
+		.rate = 0xFF,
+	};
+
+
+	frame.skb = ieee80211_pspoll_get(priv->hw, priv->vif);
+	if (!frame.skb)
+		return -ENOMEM;
+
+	ret = wsm_set_template_frame(priv, &frame);
+
+	dev_kfree_skb(frame.skb);
+
+	return ret;
+}
+
+static int cw1200_upload_null(struct cw1200_common *priv)
+{
+	int ret = 0;
+	struct wsm_template_frame frame = {
+		.frame_type = WSM_FRAME_TYPE_NULL,
+		.rate = 0xFF,
+	};
+
+	frame.skb = ieee80211_nullfunc_get(priv->hw, priv->vif);
+	if (!frame.skb)
+		return -ENOMEM;
+
+	ret = wsm_set_template_frame(priv, &frame);
+
+	dev_kfree_skb(frame.skb);
+
+	return ret;
+}
+
+static int cw1200_upload_qosnull(struct cw1200_common *priv)
+{
+	int ret = 0;
+	/* TODO:  This needs to be implemented
+
+	struct wsm_template_frame frame = {
+		.frame_type = WSM_FRAME_TYPE_QOS_NULL,
+		.rate = 0xFF,
+	};
+
+	frame.skb = ieee80211_qosnullfunc_get(priv->hw, priv->vif);
+	if (!frame.skb)
+		return -ENOMEM;
+
+	ret = wsm_set_template_frame(priv, &frame);
+
+	dev_kfree_skb(frame.skb);
+
+	*/
+	return ret;
+}
+
+static int cw1200_enable_beaconing(struct cw1200_common *priv,
+				   bool enable)
+{
+	struct wsm_beacon_transmit transmit = {
+		.enable_beaconing = enable,
+	};
+
+	return wsm_beacon_transmit(priv, &transmit);
+}
+
+static int cw1200_start_ap(struct cw1200_common *priv)
+{
+	int ret;
+	struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
+	struct wsm_start start = {
+		.mode = priv->vif->p2p ?
+				WSM_START_MODE_P2P_GO : WSM_START_MODE_AP,
+		.band = (priv->channel->band == IEEE80211_BAND_5GHZ) ?
+				WSM_PHY_BAND_5G : WSM_PHY_BAND_2_4G,
+		.channel_number = priv->channel->hw_value,
+		.beacon_interval = conf->beacon_int,
+		.dtim_period = conf->dtim_period,
+		.preamble = conf->use_short_preamble ?
+				WSM_JOIN_PREAMBLE_SHORT :
+				WSM_JOIN_PREAMBLE_LONG,
+		.probe_delay = 100,
+		.basic_rate_set = cw1200_rate_mask_to_wsm(priv,
+				conf->basic_rates),
+	};
+	struct wsm_operational_mode mode = {
+		.power_mode = cw1200_power_mode,
+		.disable_more_flag_usage = true,
+	};
+
+	memset(start.ssid, 0, sizeof(start.ssid));
+	if (!conf->hidden_ssid) {
+		start.ssid_len = conf->ssid_len;
+		memcpy(start.ssid, conf->ssid, start.ssid_len);
+	}
+
+	priv->beacon_int = conf->beacon_int;
+	priv->join_dtim_period = conf->dtim_period;
+
+	memset(&priv->link_id_db, 0, sizeof(priv->link_id_db));
+
+	pr_debug("[AP] ch: %d(%d), bcn: %d(%d), brt: 0x%.8X, ssid: %.*s.\n",
+		 start.channel_number, start.band,
+		 start.beacon_interval, start.dtim_period,
+		 start.basic_rate_set,
+		 start.ssid_len, start.ssid);
+	ret = wsm_start(priv, &start);
+	if (!ret)
+		ret = cw1200_upload_keys(priv);
+	if (!ret && priv->vif->p2p) {
+		pr_debug("[AP] Setting p2p powersave configuration.\n");
+		wsm_set_p2p_ps_modeinfo(priv, &priv->p2p_ps_modeinfo);
+	}
+	if (!ret) {
+		wsm_set_block_ack_policy(priv, 0, 0);
+		priv->join_status = CW1200_JOIN_STATUS_AP;
+		cw1200_update_filtering(priv);
+	}
+	wsm_set_operational_mode(priv, &mode);
+	return ret;
+}
+
+static int cw1200_update_beaconing(struct cw1200_common *priv)
+{
+	struct ieee80211_bss_conf *conf = &priv->vif->bss_conf;
+	struct wsm_reset reset = {
+		.link_id = 0,
+		.reset_statistics = true,
+	};
+
+	if (priv->mode == NL80211_IFTYPE_AP) {
+		/* TODO: check if changed channel, band */
+		if (priv->join_status != CW1200_JOIN_STATUS_AP ||
+		    priv->beacon_int != conf->beacon_int) {
+			pr_debug("ap restarting\n");
+			wsm_lock_tx(priv);
+			if (priv->join_status != CW1200_JOIN_STATUS_PASSIVE)
+				wsm_reset(priv, &reset);
+			priv->join_status = CW1200_JOIN_STATUS_PASSIVE;
+			cw1200_start_ap(priv);
+			wsm_unlock_tx(priv);
+		} else
+			pr_debug("ap started join_status: %d\n",
+				 priv->join_status);
+	}
+	return 0;
+}
diff --git a/drivers/net/wireless/cw1200/sta.h b/drivers/net/wireless/cw1200/sta.h
new file mode 100644
index 0000000..35babb6
--- /dev/null
+++ b/drivers/net/wireless/cw1200/sta.h
@@ -0,0 +1,123 @@
+/*
+ * Mac80211 STA interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef STA_H_INCLUDED
+#define STA_H_INCLUDED
+
+/* ******************************************************************** */
+/* mac80211 API								*/
+
+int cw1200_start(struct ieee80211_hw *dev);
+void cw1200_stop(struct ieee80211_hw *dev);
+int cw1200_add_interface(struct ieee80211_hw *dev,
+			 struct ieee80211_vif *vif);
+void cw1200_remove_interface(struct ieee80211_hw *dev,
+			     struct ieee80211_vif *vif);
+int cw1200_change_interface(struct ieee80211_hw *dev,
+			    struct ieee80211_vif *vif,
+			    enum nl80211_iftype new_type,
+			    bool p2p);
+int cw1200_config(struct ieee80211_hw *dev, u32 changed);
+void cw1200_configure_filter(struct ieee80211_hw *dev,
+			     unsigned int changed_flags,
+			     unsigned int *total_flags,
+			     u64 multicast);
+int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
+		   u16 queue, const struct ieee80211_tx_queue_params *params);
+int cw1200_get_stats(struct ieee80211_hw *dev,
+		     struct ieee80211_low_level_stats *stats);
+int cw1200_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
+		   struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+		   struct ieee80211_key_conf *key);
+
+int cw1200_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
+
+void cw1200_flush(struct ieee80211_hw *hw, u32 queues, bool drop);
+
+u64 cw1200_prepare_multicast(struct ieee80211_hw *hw,
+			     struct netdev_hw_addr_list *mc_list);
+
+int cw1200_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg);
+
+/* ******************************************************************** */
+/* WSM callbacks							*/
+
+void cw1200_join_complete_cb(struct cw1200_common *priv,
+				struct wsm_join_complete *arg);
+
+/* ******************************************************************** */
+/* WSM events								*/
+
+void cw1200_free_event_queue(struct cw1200_common *priv);
+void cw1200_event_handler(struct work_struct *work);
+void cw1200_bss_loss_work(struct work_struct *work);
+void cw1200_bss_params_work(struct work_struct *work);
+void cw1200_keep_alive_work(struct work_struct *work);
+void cw1200_tx_failure_work(struct work_struct *work);
+
+void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv, int init, int good,
+			     int bad);
+static inline void cw1200_cqm_bssloss_sm(struct cw1200_common *priv,
+					 int init, int good, int bad)
+{
+	spin_lock(&priv->bss_loss_lock);
+	__cw1200_cqm_bssloss_sm(priv, init, good, bad);
+	spin_unlock(&priv->bss_loss_lock);
+}
+
+/* ******************************************************************** */
+/* Internal API								*/
+
+int cw1200_setup_mac(struct cw1200_common *priv);
+void cw1200_join_timeout(struct work_struct *work);
+void cw1200_unjoin_work(struct work_struct *work);
+void cw1200_join_complete_work(struct work_struct *work);
+void cw1200_wep_key_work(struct work_struct *work);
+void cw1200_update_listening(struct cw1200_common *priv, bool enabled);
+void cw1200_update_filtering(struct cw1200_common *priv);
+void cw1200_update_filtering_work(struct work_struct *work);
+void cw1200_set_beacon_wakeup_period_work(struct work_struct *work);
+int cw1200_enable_listening(struct cw1200_common *priv);
+int cw1200_disable_listening(struct cw1200_common *priv);
+int cw1200_set_uapsd_param(struct cw1200_common *priv,
+				const struct wsm_edca_params *arg);
+void cw1200_ba_work(struct work_struct *work);
+void cw1200_ba_timer(unsigned long arg);
+
+/* AP stuffs */
+int cw1200_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
+		   bool set);
+int cw1200_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		   struct ieee80211_sta *sta);
+int cw1200_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		      struct ieee80211_sta *sta);
+void cw1200_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
+		       enum sta_notify_cmd notify_cmd,
+		       struct ieee80211_sta *sta);
+void cw1200_bss_info_changed(struct ieee80211_hw *dev,
+			     struct ieee80211_vif *vif,
+			     struct ieee80211_bss_conf *info,
+			     u32 changed);
+int cw1200_ampdu_action(struct ieee80211_hw *hw,
+			struct ieee80211_vif *vif,
+			enum ieee80211_ampdu_mlme_action action,
+			struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+			u8 buf_size);
+
+void cw1200_suspend_resume(struct cw1200_common *priv,
+			  struct wsm_suspend_resume *arg);
+void cw1200_set_tim_work(struct work_struct *work);
+void cw1200_set_cts_work(struct work_struct *work);
+void cw1200_multicast_start_work(struct work_struct *work);
+void cw1200_multicast_stop_work(struct work_struct *work);
+void cw1200_mcast_timeout(unsigned long arg);
+
+#endif
diff --git a/drivers/net/wireless/cw1200/txrx.c b/drivers/net/wireless/cw1200/txrx.c
new file mode 100644
index 0000000..0e40890
--- /dev/null
+++ b/drivers/net/wireless/cw1200/txrx.c
@@ -0,0 +1,1474 @@
+/*
+ * Datapath implementation for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <net/mac80211.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+#include "cw1200.h"
+#include "wsm.h"
+#include "bh.h"
+#include "sta.h"
+#include "debug.h"
+
+#define CW1200_INVALID_RATE_ID (0xFF)
+
+static int cw1200_handle_action_rx(struct cw1200_common *priv,
+				   struct sk_buff *skb);
+static const struct ieee80211_rate *
+cw1200_get_tx_rate(const struct cw1200_common *priv,
+		   const struct ieee80211_tx_rate *rate);
+
+/* ******************************************************************** */
+/* TX queue lock / unlock						*/
+
+static inline void cw1200_tx_queues_lock(struct cw1200_common *priv)
+{
+	int i;
+	for (i = 0; i < 4; ++i)
+		cw1200_queue_lock(&priv->tx_queue[i]);
+}
+
+static inline void cw1200_tx_queues_unlock(struct cw1200_common *priv)
+{
+	int i;
+	for (i = 0; i < 4; ++i)
+		cw1200_queue_unlock(&priv->tx_queue[i]);
+}
+
+/* ******************************************************************** */
+/* TX policy cache implementation					*/
+
+static void tx_policy_dump(struct tx_policy *policy)
+{
+	pr_debug("[TX policy] %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X %.1X%.1X%.1X%.1X%.1X%.1X%.1X%.1X: %d\n",
+		 policy->raw[0] & 0x0F,  policy->raw[0] >> 4,
+		 policy->raw[1] & 0x0F,  policy->raw[1] >> 4,
+		 policy->raw[2] & 0x0F,  policy->raw[2] >> 4,
+		 policy->raw[3] & 0x0F,  policy->raw[3] >> 4,
+		 policy->raw[4] & 0x0F,  policy->raw[4] >> 4,
+		 policy->raw[5] & 0x0F,  policy->raw[5] >> 4,
+		 policy->raw[6] & 0x0F,  policy->raw[6] >> 4,
+		 policy->raw[7] & 0x0F,  policy->raw[7] >> 4,
+		 policy->raw[8] & 0x0F,  policy->raw[8] >> 4,
+		 policy->raw[9] & 0x0F,  policy->raw[9] >> 4,
+		 policy->raw[10] & 0x0F,  policy->raw[10] >> 4,
+		 policy->raw[11] & 0x0F,  policy->raw[11] >> 4,
+		 policy->defined);
+}
+
+static void tx_policy_build(const struct cw1200_common *priv,
+	/* [out] */ struct tx_policy *policy,
+	struct ieee80211_tx_rate *rates, size_t count)
+{
+	int i, j;
+	unsigned limit = priv->short_frame_max_tx_count;
+	unsigned total = 0;
+	BUG_ON(rates[0].idx < 0);
+	memset(policy, 0, sizeof(*policy));
+
+	/* minstrel is buggy a little bit, so distille
+	 * incoming rates first. */
+
+	/* Sort rates in descending order. */
+	for (i = 1; i < count; ++i) {
+		if (rates[i].idx < 0) {
+			count = i;
+			break;
+		}
+		if (rates[i].idx > rates[i - 1].idx) {
+			struct ieee80211_tx_rate tmp = rates[i - 1];
+			rates[i - 1] = rates[i];
+			rates[i] = tmp;
+		}
+	}
+
+	/* Eliminate duplicates. */
+	total = rates[0].count;
+	for (i = 0, j = 1; j < count; ++j) {
+		if (rates[j].idx == rates[i].idx) {
+			rates[i].count += rates[j].count;
+		} else if (rates[j].idx > rates[i].idx) {
+			break;
+		} else {
+			++i;
+			if (i != j)
+				rates[i] = rates[j];
+		}
+		total += rates[j].count;
+	}
+	count = i + 1;
+
+	/* Re-fill policy trying to keep every requested rate and with
+	 * respect to the global max tx retransmission count. */
+	if (limit < count)
+		limit = count;
+	if (total > limit) {
+		for (i = 0; i < count; ++i) {
+			int left = count - i - 1;
+			if (rates[i].count > limit - left)
+				rates[i].count = limit - left;
+			limit -= rates[i].count;
+		}
+	}
+
+	/* HACK!!! Device has problems (at least) switching from
+	 * 54Mbps CTS to 1Mbps. This switch takes enormous amount
+	 * of time (100-200 ms), leading to valuable throughput drop.
+	 * As a workaround, additional g-rates are injected to the
+	 * policy.
+	 */
+	if (count == 2 && !(rates[0].flags & IEEE80211_TX_RC_MCS) &&
+	    rates[0].idx > 4 && rates[0].count > 2 &&
+	    rates[1].idx < 2) {
+		/* ">> 1" is an equivalent of "/ 2", but faster */
+		int mid_rate = (rates[0].idx + 4) >> 1;
+
+		/* Decrease number of retries for the initial rate */
+		rates[0].count -= 2;
+
+		if (mid_rate != 4) {
+			/* Keep fallback rate at 1Mbps. */
+			rates[3] = rates[1];
+
+			/* Inject 1 transmission on lowest g-rate */
+			rates[2].idx = 4;
+			rates[2].count = 1;
+			rates[2].flags = rates[1].flags;
+
+			/* Inject 1 transmission on mid-rate */
+			rates[1].idx = mid_rate;
+			rates[1].count = 1;
+
+			/* Fallback to 1 Mbps is a really bad thing,
+			 * so let's try to increase probability of
+			 * successful transmission on the lowest g rate
+			 * even more */
+			if (rates[0].count >= 3) {
+				--rates[0].count;
+				++rates[2].count;
+			}
+
+			/* Adjust amount of rates defined */
+			count += 2;
+		} else {
+			/* Keep fallback rate at 1Mbps. */
+			rates[2] = rates[1];
+
+			/* Inject 2 transmissions on lowest g-rate */
+			rates[1].idx = 4;
+			rates[1].count = 2;
+
+			/* Adjust amount of rates defined */
+			count += 1;
+		}
+	}
+
+	policy->defined = cw1200_get_tx_rate(priv, &rates[0])->hw_value + 1;
+
+	for (i = 0; i < count; ++i) {
+		register unsigned rateid, off, shift, retries;
+
+		rateid = cw1200_get_tx_rate(priv, &rates[i])->hw_value;
+		off = rateid >> 3;		/* eq. rateid / 8 */
+		shift = (rateid & 0x07) << 2;	/* eq. (rateid % 8) * 4 */
+
+		retries = rates[i].count;
+		if (retries > 0x0F) {
+			rates[i].count = 0x0f;
+			retries = 0x0F;
+		}
+		policy->tbl[off] |= __cpu_to_le32(retries << shift);
+		policy->retry_count += retries;
+	}
+
+	pr_debug("[TX policy] Policy (%zu): %d:%d, %d:%d, %d:%d, %d:%d, %d:%d\n",
+		 count,
+		 rates[0].idx, rates[0].count,
+		 rates[1].idx, rates[1].count,
+		 rates[2].idx, rates[2].count,
+		 rates[3].idx, rates[3].count,
+		 rates[4].idx, rates[4].count);
+}
+
+static inline bool tx_policy_is_equal(const struct tx_policy *wanted,
+					const struct tx_policy *cached)
+{
+	size_t count = wanted->defined >> 1;
+	if (wanted->defined > cached->defined)
+		return false;
+	if (count) {
+		if (memcmp(wanted->raw, cached->raw, count))
+			return false;
+	}
+	if (wanted->defined & 1) {
+		if ((wanted->raw[count] & 0x0F) != (cached->raw[count] & 0x0F))
+			return false;
+	}
+	return true;
+}
+
+static int tx_policy_find(struct tx_policy_cache *cache,
+				const struct tx_policy *wanted)
+{
+	/* O(n) complexity. Not so good, but there's only 8 entries in
+	 * the cache.
+	 * Also lru helps to reduce search time. */
+	struct tx_policy_cache_entry *it;
+	/* First search for policy in "used" list */
+	list_for_each_entry(it, &cache->used, link) {
+		if (tx_policy_is_equal(wanted, &it->policy))
+			return it - cache->cache;
+	}
+	/* Then - in "free list" */
+	list_for_each_entry(it, &cache->free, link) {
+		if (tx_policy_is_equal(wanted, &it->policy))
+			return it - cache->cache;
+	}
+	return -1;
+}
+
+static inline void tx_policy_use(struct tx_policy_cache *cache,
+				 struct tx_policy_cache_entry *entry)
+{
+	++entry->policy.usage_count;
+	list_move(&entry->link, &cache->used);
+}
+
+static inline int tx_policy_release(struct tx_policy_cache *cache,
+				    struct tx_policy_cache_entry *entry)
+{
+	int ret = --entry->policy.usage_count;
+	if (!ret)
+		list_move(&entry->link, &cache->free);
+	return ret;
+}
+
+void tx_policy_clean(struct cw1200_common *priv)
+{
+	int idx, locked;
+	struct tx_policy_cache *cache = &priv->tx_policy_cache;
+	struct tx_policy_cache_entry *entry;
+
+	cw1200_tx_queues_lock(priv);
+	spin_lock_bh(&cache->lock);
+	locked = list_empty(&cache->free);
+
+	for (idx = 0; idx < TX_POLICY_CACHE_SIZE; idx++) {
+		entry = &cache->cache[idx];
+		/* Policy usage count should be 0 at this time as all queues
+		   should be empty */
+		if (WARN_ON(entry->policy.usage_count)) {
+			entry->policy.usage_count = 0;
+			list_move(&entry->link, &cache->free);
+		}
+		memset(&entry->policy, 0, sizeof(entry->policy));
+	}
+	if (locked)
+		cw1200_tx_queues_unlock(priv);
+
+	cw1200_tx_queues_unlock(priv);
+	spin_unlock_bh(&cache->lock);
+}
+
+/* ******************************************************************** */
+/* External TX policy cache API						*/
+
+void tx_policy_init(struct cw1200_common *priv)
+{
+	struct tx_policy_cache *cache = &priv->tx_policy_cache;
+	int i;
+
+	memset(cache, 0, sizeof(*cache));
+
+	spin_lock_init(&cache->lock);
+	INIT_LIST_HEAD(&cache->used);
+	INIT_LIST_HEAD(&cache->free);
+
+	for (i = 0; i < TX_POLICY_CACHE_SIZE; ++i)
+		list_add(&cache->cache[i].link, &cache->free);
+}
+
+static int tx_policy_get(struct cw1200_common *priv,
+		  struct ieee80211_tx_rate *rates,
+		  size_t count, bool *renew)
+{
+	int idx;
+	struct tx_policy_cache *cache = &priv->tx_policy_cache;
+	struct tx_policy wanted;
+
+	tx_policy_build(priv, &wanted, rates, count);
+
+	spin_lock_bh(&cache->lock);
+	if (WARN_ON_ONCE(list_empty(&cache->free))) {
+		spin_unlock_bh(&cache->lock);
+		return CW1200_INVALID_RATE_ID;
+	}
+	idx = tx_policy_find(cache, &wanted);
+	if (idx >= 0) {
+		pr_debug("[TX policy] Used TX policy: %d\n", idx);
+		*renew = false;
+	} else {
+		struct tx_policy_cache_entry *entry;
+		*renew = true;
+		/* If policy is not found create a new one
+		 * using the oldest entry in "free" list */
+		entry = list_entry(cache->free.prev,
+			struct tx_policy_cache_entry, link);
+		entry->policy = wanted;
+		idx = entry - cache->cache;
+		pr_debug("[TX policy] New TX policy: %d\n", idx);
+		tx_policy_dump(&entry->policy);
+	}
+	tx_policy_use(cache, &cache->cache[idx]);
+	if (list_empty(&cache->free)) {
+		/* Lock TX queues. */
+		cw1200_tx_queues_lock(priv);
+	}
+	spin_unlock_bh(&cache->lock);
+	return idx;
+}
+
+static void tx_policy_put(struct cw1200_common *priv, int idx)
+{
+	int usage, locked;
+	struct tx_policy_cache *cache = &priv->tx_policy_cache;
+
+	spin_lock_bh(&cache->lock);
+	locked = list_empty(&cache->free);
+	usage = tx_policy_release(cache, &cache->cache[idx]);
+	if (locked && !usage) {
+		/* Unlock TX queues. */
+		cw1200_tx_queues_unlock(priv);
+	}
+	spin_unlock_bh(&cache->lock);
+}
+
+static int tx_policy_upload(struct cw1200_common *priv)
+{
+	struct tx_policy_cache *cache = &priv->tx_policy_cache;
+	int i;
+	struct wsm_set_tx_rate_retry_policy arg = {
+		.num = 0,
+	};
+	spin_lock_bh(&cache->lock);
+
+	/* Upload only modified entries. */
+	for (i = 0; i < TX_POLICY_CACHE_SIZE; ++i) {
+		struct tx_policy *src = &cache->cache[i].policy;
+		if (src->retry_count && !src->uploaded) {
+			struct wsm_tx_rate_retry_policy *dst =
+				&arg.tbl[arg.num];
+			dst->index = i;
+			dst->short_retries = priv->short_frame_max_tx_count;
+			dst->long_retries = priv->long_frame_max_tx_count;
+
+			dst->flags = WSM_TX_RATE_POLICY_FLAG_TERMINATE_WHEN_FINISHED |
+				WSM_TX_RATE_POLICY_FLAG_COUNT_INITIAL_TRANSMIT;
+			memcpy(dst->rate_count_indices, src->tbl,
+			       sizeof(dst->rate_count_indices));
+			src->uploaded = 1;
+			++arg.num;
+		}
+	}
+	spin_unlock_bh(&cache->lock);
+	cw1200_debug_tx_cache_miss(priv);
+	pr_debug("[TX policy] Upload %d policies\n", arg.num);
+	return wsm_set_tx_rate_retry_policy(priv, &arg);
+}
+
+void tx_policy_upload_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, tx_policy_upload_work);
+
+	pr_debug("[TX] TX policy upload.\n");
+	tx_policy_upload(priv);
+
+	wsm_unlock_tx(priv);
+	cw1200_tx_queues_unlock(priv);
+}
+
+/* ******************************************************************** */
+/* cw1200 TX implementation						*/
+
+struct cw1200_txinfo {
+	struct sk_buff *skb;
+	unsigned queue;
+	struct ieee80211_tx_info *tx_info;
+	const struct ieee80211_rate *rate;
+	struct ieee80211_hdr *hdr;
+	size_t hdrlen;
+	const u8 *da;
+	struct cw1200_sta_priv *sta_priv;
+	struct ieee80211_sta *sta;
+	struct cw1200_txpriv txpriv;
+};
+
+u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv, u32 rates)
+{
+	u32 ret = 0;
+	int i;
+	for (i = 0; i < 32; ++i) {
+		if (rates & BIT(i))
+			ret |= BIT(priv->rates[i].hw_value);
+	}
+	return ret;
+}
+
+static const struct ieee80211_rate *
+cw1200_get_tx_rate(const struct cw1200_common *priv,
+		   const struct ieee80211_tx_rate *rate)
+{
+	if (rate->idx < 0)
+		return NULL;
+	if (rate->flags & IEEE80211_TX_RC_MCS)
+		return &priv->mcs_rates[rate->idx];
+	return &priv->hw->wiphy->bands[priv->channel->band]->
+		bitrates[rate->idx];
+}
+
+static int
+cw1200_tx_h_calc_link_ids(struct cw1200_common *priv,
+			  struct cw1200_txinfo *t)
+{
+	if (t->sta && t->sta_priv->link_id)
+		t->txpriv.raw_link_id =
+				t->txpriv.link_id =
+				t->sta_priv->link_id;
+	else if (priv->mode != NL80211_IFTYPE_AP)
+		t->txpriv.raw_link_id =
+				t->txpriv.link_id = 0;
+	else if (is_multicast_ether_addr(t->da)) {
+		if (priv->enable_beacon) {
+			t->txpriv.raw_link_id = 0;
+			t->txpriv.link_id = CW1200_LINK_ID_AFTER_DTIM;
+		} else {
+			t->txpriv.raw_link_id = 0;
+			t->txpriv.link_id = 0;
+		}
+	} else {
+		t->txpriv.link_id = cw1200_find_link_id(priv, t->da);
+		if (!t->txpriv.link_id)
+			t->txpriv.link_id = cw1200_alloc_link_id(priv, t->da);
+		if (!t->txpriv.link_id) {
+			wiphy_err(priv->hw->wiphy,
+				  "No more link IDs available.\n");
+			return -ENOENT;
+		}
+		t->txpriv.raw_link_id = t->txpriv.link_id;
+	}
+	if (t->txpriv.raw_link_id)
+		priv->link_id_db[t->txpriv.raw_link_id - 1].timestamp =
+				jiffies;
+	if (t->sta && (t->sta->uapsd_queues & BIT(t->queue)))
+		t->txpriv.link_id = CW1200_LINK_ID_UAPSD;
+	return 0;
+}
+
+static void
+cw1200_tx_h_pm(struct cw1200_common *priv,
+	       struct cw1200_txinfo *t)
+{
+	if (ieee80211_is_auth(t->hdr->frame_control)) {
+		u32 mask = ~BIT(t->txpriv.raw_link_id);
+		spin_lock_bh(&priv->ps_state_lock);
+		priv->sta_asleep_mask &= mask;
+		priv->pspoll_mask &= mask;
+		spin_unlock_bh(&priv->ps_state_lock);
+	}
+}
+
+static void
+cw1200_tx_h_calc_tid(struct cw1200_common *priv,
+		     struct cw1200_txinfo *t)
+{
+	if (ieee80211_is_data_qos(t->hdr->frame_control)) {
+		u8 *qos = ieee80211_get_qos_ctl(t->hdr);
+		t->txpriv.tid = qos[0] & IEEE80211_QOS_CTL_TID_MASK;
+	} else if (ieee80211_is_data(t->hdr->frame_control)) {
+		t->txpriv.tid = 0;
+	}
+}
+
+static int
+cw1200_tx_h_crypt(struct cw1200_common *priv,
+		  struct cw1200_txinfo *t)
+{
+	if (!t->tx_info->control.hw_key ||
+	    !ieee80211_has_protected(t->hdr->frame_control))
+		return 0;
+
+	t->hdrlen += t->tx_info->control.hw_key->iv_len;
+	skb_put(t->skb, t->tx_info->control.hw_key->icv_len);
+
+	if (t->tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP)
+		skb_put(t->skb, 8); /* MIC space */
+
+	return 0;
+}
+
+static int
+cw1200_tx_h_align(struct cw1200_common *priv,
+		  struct cw1200_txinfo *t,
+		  u8 *flags)
+{
+	size_t offset = (size_t)t->skb->data & 3;
+
+	if (!offset)
+		return 0;
+
+	if (offset & 1) {
+		wiphy_err(priv->hw->wiphy,
+			  "Bug: attempt to transmit a frame with wrong alignment: %zu\n",
+			  offset);
+		return -EINVAL;
+	}
+
+	if (skb_headroom(t->skb) < offset) {
+		wiphy_err(priv->hw->wiphy,
+			  "Bug: no space allocated for DMA alignment. headroom: %d\n",
+			  skb_headroom(t->skb));
+		return -ENOMEM;
+	}
+	skb_push(t->skb, offset);
+	t->hdrlen += offset;
+	t->txpriv.offset += offset;
+	*flags |= WSM_TX_2BYTES_SHIFT;
+	cw1200_debug_tx_align(priv);
+	return 0;
+}
+
+static int
+cw1200_tx_h_action(struct cw1200_common *priv,
+		   struct cw1200_txinfo *t)
+{
+	struct ieee80211_mgmt *mgmt =
+		(struct ieee80211_mgmt *)t->hdr;
+	if (ieee80211_is_action(t->hdr->frame_control) &&
+	    mgmt->u.action.category == WLAN_CATEGORY_BACK)
+		return 1;
+	else
+		return 0;
+}
+
+/* Add WSM header */
+static struct wsm_tx *
+cw1200_tx_h_wsm(struct cw1200_common *priv,
+		struct cw1200_txinfo *t)
+{
+	struct wsm_tx *wsm;
+
+	if (skb_headroom(t->skb) < sizeof(struct wsm_tx)) {
+		wiphy_err(priv->hw->wiphy,
+			  "Bug: no space allocated for WSM header. headroom: %d\n",
+			  skb_headroom(t->skb));
+		return NULL;
+	}
+
+	wsm = (struct wsm_tx *)skb_push(t->skb, sizeof(struct wsm_tx));
+	t->txpriv.offset += sizeof(struct wsm_tx);
+	memset(wsm, 0, sizeof(*wsm));
+	wsm->hdr.len = __cpu_to_le16(t->skb->len);
+	wsm->hdr.id = __cpu_to_le16(0x0004);
+	wsm->queue_id = wsm_queue_id_to_wsm(t->queue);
+	return wsm;
+}
+
+/* BT Coex specific handling */
+static void
+cw1200_tx_h_bt(struct cw1200_common *priv,
+	       struct cw1200_txinfo *t,
+	       struct wsm_tx *wsm)
+{
+	u8 priority = 0;
+
+	if (!priv->bt_present)
+		return;
+
+	if (ieee80211_is_nullfunc(t->hdr->frame_control)) {
+		priority = WSM_EPTA_PRIORITY_MGT;
+	} else if (ieee80211_is_data(t->hdr->frame_control)) {
+		/* Skip LLC SNAP header (+6) */
+		u8 *payload = &t->skb->data[t->hdrlen];
+		u16 *ethertype = (u16 *)&payload[6];
+		if (*ethertype == __be16_to_cpu(ETH_P_PAE))
+			priority = WSM_EPTA_PRIORITY_EAPOL;
+	} else if (ieee80211_is_assoc_req(t->hdr->frame_control) ||
+		ieee80211_is_reassoc_req(t->hdr->frame_control)) {
+		struct ieee80211_mgmt *mgt_frame =
+				(struct ieee80211_mgmt *)t->hdr;
+
+		if (mgt_frame->u.assoc_req.listen_interval <
+						priv->listen_interval) {
+			pr_debug("Modified Listen Interval to %d from %d\n",
+				 priv->listen_interval,
+				 mgt_frame->u.assoc_req.listen_interval);
+			/* Replace listen interval derieved from
+			 * the one read from SDD */
+			mgt_frame->u.assoc_req.listen_interval =
+				priv->listen_interval;
+		}
+	}
+
+	if (!priority) {
+		if (ieee80211_is_action(t->hdr->frame_control))
+			priority = WSM_EPTA_PRIORITY_ACTION;
+		else if (ieee80211_is_mgmt(t->hdr->frame_control))
+			priority = WSM_EPTA_PRIORITY_MGT;
+		else if ((wsm->queue_id == WSM_QUEUE_VOICE))
+			priority = WSM_EPTA_PRIORITY_VOICE;
+		else if ((wsm->queue_id == WSM_QUEUE_VIDEO))
+			priority = WSM_EPTA_PRIORITY_VIDEO;
+		else
+			priority = WSM_EPTA_PRIORITY_DATA;
+	}
+
+	pr_debug("[TX] EPTA priority %d.\n", priority);
+
+	wsm->flags |= priority << 1;
+}
+
+static int
+cw1200_tx_h_rate_policy(struct cw1200_common *priv,
+			struct cw1200_txinfo *t,
+			struct wsm_tx *wsm)
+{
+	bool tx_policy_renew = false;
+
+	t->txpriv.rate_id = tx_policy_get(priv,
+		t->tx_info->control.rates, IEEE80211_TX_MAX_RATES,
+		&tx_policy_renew);
+	if (t->txpriv.rate_id == CW1200_INVALID_RATE_ID)
+		return -EFAULT;
+
+	wsm->flags |= t->txpriv.rate_id << 4;
+
+	t->rate = cw1200_get_tx_rate(priv,
+		&t->tx_info->control.rates[0]),
+	wsm->max_tx_rate = t->rate->hw_value;
+	if (t->rate->flags & IEEE80211_TX_RC_MCS) {
+		if (cw1200_ht_greenfield(&priv->ht_info))
+			wsm->ht_tx_parameters |=
+				__cpu_to_le32(WSM_HT_TX_GREENFIELD);
+		else
+			wsm->ht_tx_parameters |=
+				__cpu_to_le32(WSM_HT_TX_MIXED);
+	}
+
+	if (tx_policy_renew) {
+		pr_debug("[TX] TX policy renew.\n");
+		/* It's not so optimal to stop TX queues every now and then.
+		 * Better to reimplement task scheduling with
+		 * a counter. TODO. */
+		wsm_lock_tx_async(priv);
+		cw1200_tx_queues_lock(priv);
+		if (queue_work(priv->workqueue,
+			       &priv->tx_policy_upload_work) <= 0) {
+			cw1200_tx_queues_unlock(priv);
+			wsm_unlock_tx(priv);
+		}
+	}
+	return 0;
+}
+
+static bool
+cw1200_tx_h_pm_state(struct cw1200_common *priv,
+		     struct cw1200_txinfo *t)
+{
+	int was_buffered = 1;
+
+	if (t->txpriv.link_id == CW1200_LINK_ID_AFTER_DTIM &&
+	    !priv->buffered_multicasts) {
+		priv->buffered_multicasts = true;
+		if (priv->sta_asleep_mask)
+			queue_work(priv->workqueue,
+				   &priv->multicast_start_work);
+	}
+
+	if (t->txpriv.raw_link_id && t->txpriv.tid < CW1200_MAX_TID)
+		was_buffered = priv->link_id_db[t->txpriv.raw_link_id - 1].buffered[t->txpriv.tid]++;
+
+	return !was_buffered;
+}
+
+/* ******************************************************************** */
+
+void cw1200_tx(struct ieee80211_hw *dev,
+	       struct ieee80211_tx_control *control,
+	       struct sk_buff *skb)
+{
+	struct cw1200_common *priv = dev->priv;
+	struct cw1200_txinfo t = {
+		.skb = skb,
+		.queue = skb_get_queue_mapping(skb),
+		.tx_info = IEEE80211_SKB_CB(skb),
+		.hdr = (struct ieee80211_hdr *)skb->data,
+		.txpriv.tid = CW1200_MAX_TID,
+		.txpriv.rate_id = CW1200_INVALID_RATE_ID,
+	};
+	struct ieee80211_sta *sta;
+	struct wsm_tx *wsm;
+	bool tid_update = 0;
+	u8 flags = 0;
+	int ret;
+
+	if (priv->bh_error)
+		goto drop;
+
+	t.hdrlen = ieee80211_hdrlen(t.hdr->frame_control);
+	t.da = ieee80211_get_DA(t.hdr);
+	if (control) {
+		t.sta = control->sta;
+		t.sta_priv = (struct cw1200_sta_priv *)&t.sta->drv_priv;
+	}
+
+	if (WARN_ON(t.queue >= 4))
+		goto drop;
+
+	ret = cw1200_tx_h_calc_link_ids(priv, &t);
+	if (ret)
+		goto drop;
+
+	pr_debug("[TX] TX %d bytes (queue: %d, link_id: %d (%d)).\n",
+		 skb->len, t.queue, t.txpriv.link_id,
+		 t.txpriv.raw_link_id);
+
+	cw1200_tx_h_pm(priv, &t);
+	cw1200_tx_h_calc_tid(priv, &t);
+	ret = cw1200_tx_h_crypt(priv, &t);
+	if (ret)
+		goto drop;
+	ret = cw1200_tx_h_align(priv, &t, &flags);
+	if (ret)
+		goto drop;
+	ret = cw1200_tx_h_action(priv, &t);
+	if (ret)
+		goto drop;
+	wsm = cw1200_tx_h_wsm(priv, &t);
+	if (!wsm) {
+		ret = -ENOMEM;
+		goto drop;
+	}
+	wsm->flags |= flags;
+	cw1200_tx_h_bt(priv, &t, wsm);
+	ret = cw1200_tx_h_rate_policy(priv, &t, wsm);
+	if (ret)
+		goto drop;
+
+	rcu_read_lock();
+	sta = rcu_dereference(t.sta);
+
+	spin_lock_bh(&priv->ps_state_lock);
+	{
+		tid_update = cw1200_tx_h_pm_state(priv, &t);
+		BUG_ON(cw1200_queue_put(&priv->tx_queue[t.queue],
+					t.skb, &t.txpriv));
+	}
+	spin_unlock_bh(&priv->ps_state_lock);
+
+	if (tid_update && sta)
+		ieee80211_sta_set_buffered(sta, t.txpriv.tid, true);
+
+	rcu_read_unlock();
+
+	cw1200_bh_wakeup(priv);
+
+	return;
+
+drop:
+	cw1200_skb_dtor(priv, skb, &t.txpriv);
+	return;
+}
+
+/* ******************************************************************** */
+
+static int cw1200_handle_action_rx(struct cw1200_common *priv,
+				   struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *mgmt = (void *)skb->data;
+
+	/* Filter block ACK negotiation: fully controlled by firmware */
+	if (mgmt->u.action.category == WLAN_CATEGORY_BACK)
+		return 1;
+
+	return 0;
+}
+
+static int cw1200_handle_pspoll(struct cw1200_common *priv,
+				struct sk_buff *skb)
+{
+	struct ieee80211_sta *sta;
+	struct ieee80211_pspoll *pspoll = (struct ieee80211_pspoll *)skb->data;
+	int link_id = 0;
+	u32 pspoll_mask = 0;
+	int drop = 1;
+	int i;
+
+	if (priv->join_status != CW1200_JOIN_STATUS_AP)
+		goto done;
+	if (memcmp(priv->vif->addr, pspoll->bssid, ETH_ALEN))
+		goto done;
+
+	rcu_read_lock();
+	sta = ieee80211_find_sta(priv->vif, pspoll->ta);
+	if (sta) {
+		struct cw1200_sta_priv *sta_priv;
+		sta_priv = (struct cw1200_sta_priv *)&sta->drv_priv;
+		link_id = sta_priv->link_id;
+		pspoll_mask = BIT(sta_priv->link_id);
+	}
+	rcu_read_unlock();
+	if (!link_id)
+		goto done;
+
+	priv->pspoll_mask |= pspoll_mask;
+	drop = 0;
+
+	/* Do not report pspols if data for given link id is
+	 * queued already. */
+	for (i = 0; i < 4; ++i) {
+		if (cw1200_queue_get_num_queued(&priv->tx_queue[i],
+						pspoll_mask)) {
+			cw1200_bh_wakeup(priv);
+			drop = 1;
+			break;
+		}
+	}
+	pr_debug("[RX] PSPOLL: %s\n", drop ? "local" : "fwd");
+done:
+	return drop;
+}
+
+/* ******************************************************************** */
+
+void cw1200_tx_confirm_cb(struct cw1200_common *priv,
+			  int link_id,
+			  struct wsm_tx_confirm *arg)
+{
+	u8 queue_id = cw1200_queue_get_queue_id(arg->packet_id);
+	struct cw1200_queue *queue = &priv->tx_queue[queue_id];
+	struct sk_buff *skb;
+	const struct cw1200_txpriv *txpriv;
+
+	pr_debug("[TX] TX confirm: %d, %d.\n",
+		 arg->status, arg->ack_failures);
+
+	if (cw1200_itp_tx_running(priv))
+		return;
+
+	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
+		/* STA is stopped. */
+		return;
+	}
+
+	if (WARN_ON(queue_id >= 4))
+		return;
+
+	if (arg->status)
+		pr_debug("TX failed: %d.\n", arg->status);
+
+	if ((arg->status == WSM_REQUEUE) &&
+	    (arg->flags & WSM_TX_STATUS_REQUEUE)) {
+		/* "Requeue" means "implicit suspend" */
+		struct wsm_suspend_resume suspend = {
+			.link_id = link_id,
+			.stop = 1,
+			.multicast = !link_id,
+		};
+		cw1200_suspend_resume(priv, &suspend);
+		wiphy_warn(priv->hw->wiphy, "Requeue for link_id %d (try %d). STAs asleep: 0x%.8X\n",
+			   link_id,
+			   cw1200_queue_get_generation(arg->packet_id) + 1,
+			   priv->sta_asleep_mask);
+		cw1200_queue_requeue(queue, arg->packet_id);
+		spin_lock_bh(&priv->ps_state_lock);
+		if (!link_id) {
+			priv->buffered_multicasts = true;
+			if (priv->sta_asleep_mask) {
+				queue_work(priv->workqueue,
+					   &priv->multicast_start_work);
+			}
+		}
+		spin_unlock_bh(&priv->ps_state_lock);
+	} else if (!cw1200_queue_get_skb(queue, arg->packet_id,
+					 &skb, &txpriv)) {
+		struct ieee80211_tx_info *tx = IEEE80211_SKB_CB(skb);
+		int tx_count = arg->ack_failures;
+		u8 ht_flags = 0;
+		int i;
+
+		if (cw1200_ht_greenfield(&priv->ht_info))
+			ht_flags |= IEEE80211_TX_RC_GREEN_FIELD;
+
+		spin_lock(&priv->bss_loss_lock);
+		if (priv->bss_loss_state &&
+		    arg->packet_id == priv->bss_loss_confirm_id) {
+			if (arg->status) {
+				/* Recovery failed */
+				__cw1200_cqm_bssloss_sm(priv, 0, 0, 1);
+			} else {
+				/* Recovery succeeded */
+				__cw1200_cqm_bssloss_sm(priv, 0, 1, 0);
+			}
+		}
+		spin_unlock(&priv->bss_loss_lock);
+
+		if (!arg->status) {
+			tx->flags |= IEEE80211_TX_STAT_ACK;
+			++tx_count;
+			cw1200_debug_txed(priv);
+			if (arg->flags & WSM_TX_STATUS_AGGREGATION) {
+				/* Do not report aggregation to mac80211:
+				 * it confuses minstrel a lot. */
+				/* tx->flags |= IEEE80211_TX_STAT_AMPDU; */
+				cw1200_debug_txed_agg(priv);
+			}
+		} else {
+			if (tx_count)
+				++tx_count;
+		}
+
+		for (i = 0; i < IEEE80211_TX_MAX_RATES; ++i) {
+			if (tx->status.rates[i].count >= tx_count) {
+				tx->status.rates[i].count = tx_count;
+				break;
+			}
+			tx_count -= tx->status.rates[i].count;
+			if (tx->status.rates[i].flags & IEEE80211_TX_RC_MCS)
+				tx->status.rates[i].flags |= ht_flags;
+		}
+
+		for (++i; i < IEEE80211_TX_MAX_RATES; ++i) {
+			tx->status.rates[i].count = 0;
+			tx->status.rates[i].idx = -1;
+		}
+
+		/* Pull off any crypto trailers that we added on */
+		if (tx->control.hw_key) {
+			skb_trim(skb, skb->len - tx->control.hw_key->icv_len);
+			if (tx->control.hw_key->cipher == WLAN_CIPHER_SUITE_TKIP)
+				skb_trim(skb, skb->len - 8); /* MIC space */
+		}
+		cw1200_queue_remove(queue, arg->packet_id);
+	}
+	/* XXX TODO:  Only wake if there are pending transmits.. */
+	cw1200_bh_wakeup(priv);
+}
+
+static void cw1200_notify_buffered_tx(struct cw1200_common *priv,
+			       struct sk_buff *skb, int link_id, int tid)
+{
+	struct ieee80211_sta *sta;
+	struct ieee80211_hdr *hdr;
+	u8 *buffered;
+	u8 still_buffered = 0;
+
+	if (link_id && tid < CW1200_MAX_TID) {
+		buffered = priv->link_id_db
+				[link_id - 1].buffered;
+
+		spin_lock_bh(&priv->ps_state_lock);
+		if (!WARN_ON(!buffered[tid]))
+			still_buffered = --buffered[tid];
+		spin_unlock_bh(&priv->ps_state_lock);
+
+		if (!still_buffered && tid < CW1200_MAX_TID) {
+			hdr = (struct ieee80211_hdr *)skb->data;
+			rcu_read_lock();
+			sta = ieee80211_find_sta(priv->vif, hdr->addr1);
+			if (sta)
+				ieee80211_sta_set_buffered(sta, tid, false);
+			rcu_read_unlock();
+		}
+	}
+}
+
+void cw1200_skb_dtor(struct cw1200_common *priv,
+		     struct sk_buff *skb,
+		     const struct cw1200_txpriv *txpriv)
+{
+	skb_pull(skb, txpriv->offset);
+	if (txpriv->rate_id != CW1200_INVALID_RATE_ID) {
+		cw1200_notify_buffered_tx(priv, skb,
+					  txpriv->raw_link_id, txpriv->tid);
+		tx_policy_put(priv, txpriv->rate_id);
+	}
+	if (!cw1200_is_itp(priv))
+		ieee80211_tx_status(priv->hw, skb);
+}
+
+void cw1200_rx_cb(struct cw1200_common *priv,
+		  struct wsm_rx *arg,
+		  int link_id,
+		  struct sk_buff **skb_p)
+{
+	struct sk_buff *skb = *skb_p;
+	struct ieee80211_rx_status *hdr = IEEE80211_SKB_RXCB(skb);
+	struct ieee80211_hdr *frame = (struct ieee80211_hdr *)skb->data;
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
+	struct cw1200_link_entry *entry = NULL;
+	unsigned long grace_period;
+
+	bool early_data = false;
+	bool p2p = priv->vif && priv->vif->p2p;
+	size_t hdrlen;
+	hdr->flag = 0;
+
+	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
+		/* STA is stopped. */
+		goto drop;
+	}
+
+	if (link_id && link_id <= CW1200_MAX_STA_IN_AP_MODE) {
+		entry =	&priv->link_id_db[link_id - 1];
+		if (entry->status == CW1200_LINK_SOFT &&
+		    ieee80211_is_data(frame->frame_control))
+			early_data = true;
+		entry->timestamp = jiffies;
+	} else if (p2p &&
+		   ieee80211_is_action(frame->frame_control) &&
+		   (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)) {
+		pr_debug("[RX] Going to MAP&RESET link ID\n");
+		WARN_ON(work_pending(&priv->linkid_reset_work));
+		memcpy(&priv->action_frame_sa[0],
+		       ieee80211_get_SA(frame), ETH_ALEN);
+		priv->action_linkid = 0;
+		schedule_work(&priv->linkid_reset_work);
+	}
+
+	if (link_id && p2p &&
+	    ieee80211_is_action(frame->frame_control) &&
+	    (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)) {
+		/* Link ID already exists for the ACTION frame.
+		 * Reset and Remap */
+		WARN_ON(work_pending(&priv->linkid_reset_work));
+		memcpy(&priv->action_frame_sa[0],
+		       ieee80211_get_SA(frame), ETH_ALEN);
+		priv->action_linkid = link_id;
+		schedule_work(&priv->linkid_reset_work);
+	}
+	if (arg->status) {
+		if (arg->status == WSM_STATUS_MICFAILURE) {
+			pr_debug("[RX] MIC failure.\n");
+			hdr->flag |= RX_FLAG_MMIC_ERROR;
+		} else if (arg->status == WSM_STATUS_NO_KEY_FOUND) {
+			pr_debug("[RX] No key found.\n");
+			goto drop;
+		} else {
+			pr_debug("[RX] Receive failure: %d.\n",
+				 arg->status);
+			goto drop;
+		}
+	}
+
+	if (skb->len < sizeof(struct ieee80211_pspoll)) {
+		wiphy_warn(priv->hw->wiphy, "Mailformed SDU rx'ed. Size is lesser than IEEE header.\n");
+		goto drop;
+	}
+
+	if (ieee80211_is_pspoll(frame->frame_control))
+		if (cw1200_handle_pspoll(priv, skb))
+			goto drop;
+
+	hdr->mactime = 0; /* Not supported by WSM */
+	hdr->band = ((arg->channel_number & 0xff00) ||
+		     (arg->channel_number > 14)) ?
+			IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
+	hdr->freq = ieee80211_channel_to_frequency(
+			arg->channel_number,
+			hdr->band);
+
+	if (arg->rx_rate >= 14) {
+		hdr->flag |= RX_FLAG_HT;
+		hdr->rate_idx = arg->rx_rate - 14;
+	} else if (arg->rx_rate >= 4) {
+		hdr->rate_idx = arg->rx_rate - 2;
+	} else {
+		hdr->rate_idx = arg->rx_rate;
+	}
+
+	hdr->signal = (s8)arg->rcpi_rssi;
+	hdr->antenna = 0;
+
+	hdrlen = ieee80211_hdrlen(frame->frame_control);
+
+	if (WSM_RX_STATUS_ENCRYPTION(arg->flags)) {
+		size_t iv_len = 0, icv_len = 0;
+
+		hdr->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED;
+
+		/* Oops... There is no fast way to ask mac80211 about
+		 * IV/ICV lengths. Even defineas are not exposed.*/
+		switch (WSM_RX_STATUS_ENCRYPTION(arg->flags)) {
+		case WSM_RX_STATUS_WEP:
+			iv_len = 4 /* WEP_IV_LEN */;
+			icv_len = 4 /* WEP_ICV_LEN */;
+			break;
+		case WSM_RX_STATUS_TKIP:
+			iv_len = 8 /* TKIP_IV_LEN */;
+			icv_len = 4 /* TKIP_ICV_LEN */
+				+ 8 /*MICHAEL_MIC_LEN*/;
+			hdr->flag |= RX_FLAG_MMIC_STRIPPED;
+			break;
+		case WSM_RX_STATUS_AES:
+			iv_len = 8 /* CCMP_HDR_LEN */;
+			icv_len = 8 /* CCMP_MIC_LEN */;
+			break;
+		case WSM_RX_STATUS_WAPI:
+			iv_len = 18 /* WAPI_HDR_LEN */;
+			icv_len = 16 /* WAPI_MIC_LEN */;
+			break;
+		default:
+			pr_warn("Unknown encryption type %d\n",
+				WSM_RX_STATUS_ENCRYPTION(arg->flags));
+			goto drop;
+		}
+
+		/* Firmware strips ICV in case of MIC failure. */
+		if (arg->status == WSM_STATUS_MICFAILURE)
+			icv_len = 0;
+
+		if (skb->len < hdrlen + iv_len + icv_len) {
+			wiphy_warn(priv->hw->wiphy, "Malformed SDU rx'ed. Size is lesser than crypto headers.\n");
+			goto drop;
+		}
+
+		/* Remove IV, ICV and MIC */
+		skb_trim(skb, skb->len - icv_len);
+		memmove(skb->data + iv_len, skb->data, hdrlen);
+		skb_pull(skb, iv_len);
+	}
+
+	/* Remove TSF from the end of frame */
+	if (arg->flags & WSM_RX_STATUS_TSF_INCLUDED) {
+		memcpy(&hdr->mactime, skb->data + skb->len - 8, 8);
+		hdr->mactime = le64_to_cpu(hdr->mactime);
+		if (skb->len >= 8)
+			skb_trim(skb, skb->len - 8);
+	}
+
+	cw1200_debug_rxed(priv);
+	if (arg->flags & WSM_RX_STATUS_AGGREGATE)
+		cw1200_debug_rxed_agg(priv);
+
+	if (ieee80211_is_action(frame->frame_control) &&
+	    (arg->flags & WSM_RX_STATUS_ADDRESS1)) {
+		if (cw1200_handle_action_rx(priv, skb))
+			return;
+	} else if (ieee80211_is_beacon(frame->frame_control) &&
+		   !arg->status &&
+		   !memcmp(ieee80211_get_SA(frame), priv->vif->bss_conf.bssid,
+			   ETH_ALEN)) {
+		const u8 *tim_ie;
+		u8 *ies = ((struct ieee80211_mgmt *)
+			  (skb->data))->u.beacon.variable;
+		size_t ies_len = skb->len - (ies - (u8 *)(skb->data));
+
+		tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies, ies_len);
+		if (tim_ie) {
+			struct ieee80211_tim_ie *tim =
+				(struct ieee80211_tim_ie *)&tim_ie[2];
+
+			if (priv->join_dtim_period != tim->dtim_period) {
+				priv->join_dtim_period = tim->dtim_period;
+				queue_work(priv->workqueue,
+					   &priv->set_beacon_wakeup_period_work);
+			}
+		}
+
+		/* Disable beacon filter once we're associated... */
+		if (priv->disable_beacon_filter &&
+		    (priv->vif->bss_conf.assoc ||
+		     priv->vif->bss_conf.ibss_joined)) {
+			priv->disable_beacon_filter = false;
+			queue_work(priv->workqueue,
+				   &priv->update_filtering_work);
+		}
+	}
+
+	/* Stay awake after frame is received to give
+	 * userspace chance to react and acquire appropriate
+	 * wakelock. */
+	if (ieee80211_is_auth(frame->frame_control))
+		grace_period = 5 * HZ;
+	else if (ieee80211_is_deauth(frame->frame_control))
+		grace_period = 5 * HZ;
+	else
+		grace_period = 1 * HZ;
+	cw1200_pm_stay_awake(&priv->pm_state, grace_period);
+
+	if (cw1200_itp_rxed(priv, skb)) {
+		consume_skb(skb);
+	} else if (early_data) {
+		spin_lock_bh(&priv->ps_state_lock);
+		/* Double-check status with lock held */
+		if (entry->status == CW1200_LINK_SOFT)
+			skb_queue_tail(&entry->rx_queue, skb);
+		else
+			ieee80211_rx_irqsafe(priv->hw, skb);
+		spin_unlock_bh(&priv->ps_state_lock);
+	} else {
+		ieee80211_rx_irqsafe(priv->hw, skb);
+	}
+	*skb_p = NULL;
+
+	return;
+
+drop:
+	/* TODO: update failure counters */
+	return;
+}
+
+/* ******************************************************************** */
+/* Security								*/
+
+int cw1200_alloc_key(struct cw1200_common *priv)
+{
+	int idx;
+
+	idx = ffs(~priv->key_map) - 1;
+	if (idx < 0 || idx > WSM_KEY_MAX_INDEX)
+		return -1;
+
+	priv->key_map |= BIT(idx);
+	priv->keys[idx].index = idx;
+	return idx;
+}
+
+void cw1200_free_key(struct cw1200_common *priv, int idx)
+{
+	BUG_ON(!(priv->key_map & BIT(idx)));
+	memset(&priv->keys[idx], 0, sizeof(priv->keys[idx]));
+	priv->key_map &= ~BIT(idx);
+}
+
+void cw1200_free_keys(struct cw1200_common *priv)
+{
+	memset(&priv->keys, 0, sizeof(priv->keys));
+	priv->key_map = 0;
+}
+
+int cw1200_upload_keys(struct cw1200_common *priv)
+{
+	int idx, ret = 0;
+	for (idx = 0; idx <= WSM_KEY_MAX_INDEX; ++idx)
+		if (priv->key_map & BIT(idx)) {
+			ret = wsm_add_key(priv, &priv->keys[idx]);
+			if (ret < 0)
+				break;
+		}
+	return ret;
+}
+
+/* Workaround for WFD test case 6.1.10 */
+void cw1200_link_id_reset(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, linkid_reset_work);
+	int temp_linkid;
+
+	if (!priv->action_linkid) {
+		/* In GO mode we can receive ACTION frames without a linkID */
+		temp_linkid = cw1200_alloc_link_id(priv,
+				&priv->action_frame_sa[0]);
+		WARN_ON(!temp_linkid);
+		if (temp_linkid) {
+			/* Make sure we execute the WQ */
+			flush_workqueue(priv->workqueue);
+			/* Release the link ID */
+			spin_lock_bh(&priv->ps_state_lock);
+			priv->link_id_db[temp_linkid - 1].prev_status =
+				priv->link_id_db[temp_linkid - 1].status;
+			priv->link_id_db[temp_linkid - 1].status =
+				CW1200_LINK_RESET;
+			spin_unlock_bh(&priv->ps_state_lock);
+			wsm_lock_tx_async(priv);
+			if (queue_work(priv->workqueue,
+				       &priv->link_id_work) <= 0)
+				wsm_unlock_tx(priv);
+		}
+	} else {
+		spin_lock_bh(&priv->ps_state_lock);
+		priv->link_id_db[priv->action_linkid - 1].prev_status =
+			priv->link_id_db[priv->action_linkid - 1].status;
+		priv->link_id_db[priv->action_linkid - 1].status =
+			CW1200_LINK_RESET_REMAP;
+		spin_unlock_bh(&priv->ps_state_lock);
+		wsm_lock_tx_async(priv);
+		if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
+			wsm_unlock_tx(priv);
+		flush_workqueue(priv->workqueue);
+	}
+}
+
+int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac)
+{
+	int i, ret = 0;
+	spin_lock_bh(&priv->ps_state_lock);
+	for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+		if (!memcmp(mac, priv->link_id_db[i].mac, ETH_ALEN) &&
+		    priv->link_id_db[i].status) {
+			priv->link_id_db[i].timestamp = jiffies;
+			ret = i + 1;
+			break;
+		}
+	}
+	spin_unlock_bh(&priv->ps_state_lock);
+	return ret;
+}
+
+int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac)
+{
+	int i, ret = 0;
+	unsigned long max_inactivity = 0;
+	unsigned long now = jiffies;
+
+	spin_lock_bh(&priv->ps_state_lock);
+	for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+		if (!priv->link_id_db[i].status) {
+			ret = i + 1;
+			break;
+		} else if (priv->link_id_db[i].status != CW1200_LINK_HARD &&
+			   !priv->tx_queue_stats.link_map_cache[i + 1]) {
+			unsigned long inactivity =
+				now - priv->link_id_db[i].timestamp;
+			if (inactivity < max_inactivity)
+				continue;
+			max_inactivity = inactivity;
+			ret = i + 1;
+		}
+	}
+	if (ret) {
+		struct cw1200_link_entry *entry = &priv->link_id_db[ret - 1];
+		pr_debug("[AP] STA added, link_id: %d\n", ret);
+		entry->status = CW1200_LINK_RESERVE;
+		memcpy(&entry->mac, mac, ETH_ALEN);
+		memset(&entry->buffered, 0, CW1200_MAX_TID);
+		skb_queue_head_init(&entry->rx_queue);
+		wsm_lock_tx_async(priv);
+		if (queue_work(priv->workqueue, &priv->link_id_work) <= 0)
+			wsm_unlock_tx(priv);
+	} else {
+		wiphy_info(priv->hw->wiphy,
+			   "[AP] Early: no more link IDs available.\n");
+	}
+
+	spin_unlock_bh(&priv->ps_state_lock);
+	return ret;
+}
+
+void cw1200_link_id_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, link_id_work);
+	wsm_flush_tx(priv);
+	cw1200_link_id_gc_work(&priv->link_id_gc_work.work);
+	wsm_unlock_tx(priv);
+}
+
+void cw1200_link_id_gc_work(struct work_struct *work)
+{
+	struct cw1200_common *priv =
+		container_of(work, struct cw1200_common, link_id_gc_work.work);
+	struct wsm_reset reset = {
+		.reset_statistics = false,
+	};
+	struct wsm_map_link map_link = {
+		.link_id = 0,
+	};
+	unsigned long now = jiffies;
+	unsigned long next_gc = -1;
+	long ttl;
+	bool need_reset;
+	u32 mask;
+	int i;
+
+	if (priv->join_status != CW1200_JOIN_STATUS_AP)
+		return;
+
+	wsm_lock_tx(priv);
+	spin_lock_bh(&priv->ps_state_lock);
+	for (i = 0; i < CW1200_MAX_STA_IN_AP_MODE; ++i) {
+		need_reset = false;
+		mask = BIT(i + 1);
+		if (priv->link_id_db[i].status == CW1200_LINK_RESERVE ||
+		    (priv->link_id_db[i].status == CW1200_LINK_HARD &&
+		     !(priv->link_id_map & mask))) {
+			if (priv->link_id_map & mask) {
+				priv->sta_asleep_mask &= ~mask;
+				priv->pspoll_mask &= ~mask;
+				need_reset = true;
+			}
+			priv->link_id_map |= mask;
+			if (priv->link_id_db[i].status != CW1200_LINK_HARD)
+				priv->link_id_db[i].status = CW1200_LINK_SOFT;
+			memcpy(map_link.mac_addr, priv->link_id_db[i].mac,
+			       ETH_ALEN);
+			spin_unlock_bh(&priv->ps_state_lock);
+			if (need_reset) {
+				reset.link_id = i + 1;
+				wsm_reset(priv, &reset);
+			}
+			map_link.link_id = i + 1;
+			wsm_map_link(priv, &map_link);
+			next_gc = min(next_gc, CW1200_LINK_ID_GC_TIMEOUT);
+			spin_lock_bh(&priv->ps_state_lock);
+		} else if (priv->link_id_db[i].status == CW1200_LINK_SOFT) {
+			ttl = priv->link_id_db[i].timestamp - now +
+					CW1200_LINK_ID_GC_TIMEOUT;
+			if (ttl <= 0) {
+				need_reset = true;
+				priv->link_id_db[i].status = CW1200_LINK_OFF;
+				priv->link_id_map &= ~mask;
+				priv->sta_asleep_mask &= ~mask;
+				priv->pspoll_mask &= ~mask;
+				memset(map_link.mac_addr, 0, ETH_ALEN);
+				spin_unlock_bh(&priv->ps_state_lock);
+				reset.link_id = i + 1;
+				wsm_reset(priv, &reset);
+				spin_lock_bh(&priv->ps_state_lock);
+			} else {
+				next_gc = min_t(unsigned long, next_gc, ttl);
+			}
+		} else if (priv->link_id_db[i].status == CW1200_LINK_RESET ||
+				priv->link_id_db[i].status ==
+				CW1200_LINK_RESET_REMAP) {
+			int status = priv->link_id_db[i].status;
+			priv->link_id_db[i].status =
+					priv->link_id_db[i].prev_status;
+			priv->link_id_db[i].timestamp = now;
+			reset.link_id = i + 1;
+			spin_unlock_bh(&priv->ps_state_lock);
+			wsm_reset(priv, &reset);
+			if (status == CW1200_LINK_RESET_REMAP) {
+				memcpy(map_link.mac_addr,
+				       priv->link_id_db[i].mac,
+				       ETH_ALEN);
+				map_link.link_id = i + 1;
+				wsm_map_link(priv, &map_link);
+				next_gc = min(next_gc,
+						CW1200_LINK_ID_GC_TIMEOUT);
+			}
+			spin_lock_bh(&priv->ps_state_lock);
+		}
+		if (need_reset) {
+			skb_queue_purge(&priv->link_id_db[i].rx_queue);
+			pr_debug("[AP] STA removed, link_id: %d\n",
+				 reset.link_id);
+		}
+	}
+	spin_unlock_bh(&priv->ps_state_lock);
+	if (next_gc != -1)
+		queue_delayed_work(priv->workqueue,
+				   &priv->link_id_gc_work, next_gc);
+	wsm_unlock_tx(priv);
+}
diff --git a/drivers/net/wireless/cw1200/txrx.h b/drivers/net/wireless/cw1200/txrx.h
new file mode 100644
index 0000000..492a4e1
--- /dev/null
+++ b/drivers/net/wireless/cw1200/txrx.h
@@ -0,0 +1,106 @@
+/*
+ * Datapath interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_TXRX_H
+#define CW1200_TXRX_H
+
+#include <linux/list.h>
+
+/* extern */ struct ieee80211_hw;
+/* extern */ struct sk_buff;
+/* extern */ struct wsm_tx;
+/* extern */ struct wsm_rx;
+/* extern */ struct wsm_tx_confirm;
+/* extern */ struct cw1200_txpriv;
+
+struct tx_policy {
+	union {
+		__le32 tbl[3];
+		u8 raw[12];
+	};
+	u8  defined;
+	u8  usage_count;
+	u8  retry_count;
+	u8  uploaded;
+};
+
+struct tx_policy_cache_entry {
+	struct tx_policy policy;
+	struct list_head link;
+};
+
+#define TX_POLICY_CACHE_SIZE	(8)
+struct tx_policy_cache {
+	struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
+	struct list_head used;
+	struct list_head free;
+	spinlock_t lock; /* Protect policy cache */
+};
+
+/* ******************************************************************** */
+/* TX policy cache							*/
+/* Intention of TX policy cache is an overcomplicated WSM API.
+ * Device does not accept per-PDU tx retry sequence.
+ * It uses "tx retry policy id" instead, so driver code has to sync
+ * linux tx retry sequences with a retry policy table in the device.
+ */
+void tx_policy_init(struct cw1200_common *priv);
+void tx_policy_upload_work(struct work_struct *work);
+void tx_policy_clean(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* TX implementation							*/
+
+u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
+			       u32 rates);
+void cw1200_tx(struct ieee80211_hw *dev,
+	       struct ieee80211_tx_control *control,
+	       struct sk_buff *skb);
+void cw1200_skb_dtor(struct cw1200_common *priv,
+		     struct sk_buff *skb,
+		     const struct cw1200_txpriv *txpriv);
+
+/* ******************************************************************** */
+/* WSM callbacks							*/
+
+void cw1200_tx_confirm_cb(struct cw1200_common *priv,
+			  int link_id,
+			  struct wsm_tx_confirm *arg);
+void cw1200_rx_cb(struct cw1200_common *priv,
+		  struct wsm_rx *arg,
+		  int link_id,
+		  struct sk_buff **skb_p);
+
+/* ******************************************************************** */
+/* Timeout								*/
+
+void cw1200_tx_timeout(struct work_struct *work);
+
+/* ******************************************************************** */
+/* Security								*/
+int cw1200_alloc_key(struct cw1200_common *priv);
+void cw1200_free_key(struct cw1200_common *priv, int idx);
+void cw1200_free_keys(struct cw1200_common *priv);
+int cw1200_upload_keys(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* Workaround for WFD test case 6.1.10					*/
+void cw1200_link_id_reset(struct work_struct *work);
+
+#define CW1200_LINK_ID_GC_TIMEOUT ((unsigned long)(10 * HZ))
+
+int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac);
+int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac);
+void cw1200_link_id_work(struct work_struct *work);
+void cw1200_link_id_gc_work(struct work_struct *work);
+
+
+#endif /* CW1200_TXRX_H */
diff --git a/drivers/net/wireless/cw1200/wsm.c b/drivers/net/wireless/cw1200/wsm.c
new file mode 100644
index 0000000..4db6cc1
--- /dev/null
+++ b/drivers/net/wireless/cw1200/wsm.c
@@ -0,0 +1,1884 @@
+/*
+ * WSM host interface (HI) implementation for
+ * ST-Ericsson CW1200 mac80211 drivers.
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/skbuff.h>
+#include <linux/wait.h>
+#include <linux/skbuff.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/random.h>
+
+#include "cw1200.h"
+#include "wsm.h"
+#include "bh.h"
+#include "sta.h"
+#include "debug.h"
+#include "itp.h"
+
+#define WSM_CMD_TIMEOUT		(2 * HZ) /* With respect to interrupt loss */
+#define WSM_CMD_START_TIMEOUT	(7 * HZ)
+#define WSM_CMD_RESET_TIMEOUT	(3 * HZ) /* 2 sec. timeout was observed.   */
+#define WSM_CMD_MAX_TIMEOUT	(3 * HZ)
+
+#define WSM_SKIP(buf, size)						\
+	do {								\
+		if ((buf)->data + size > (buf)->end)			\
+			goto underflow;					\
+		(buf)->data += size;					\
+	} while (0)
+
+#define WSM_GET(buf, ptr, size)						\
+	do {								\
+		if ((buf)->data + size > (buf)->end)			\
+			goto underflow;					\
+		memcpy(ptr, (buf)->data, size);				\
+		(buf)->data += size;					\
+	} while (0)
+
+#define __WSM_GET(buf, type, cvt)					\
+	({								\
+		type val;						\
+		if ((buf)->data + sizeof(type) > (buf)->end)		\
+			goto underflow;					\
+		val = cvt(*(type *)(buf)->data);			\
+		(buf)->data += sizeof(type);				\
+		val;							\
+	})
+
+#define WSM_GET8(buf)  __WSM_GET(buf, u8, (u8))
+#define WSM_GET16(buf) __WSM_GET(buf, u16, __le16_to_cpu)
+#define WSM_GET32(buf) __WSM_GET(buf, u32, __le32_to_cpu)
+
+#define WSM_PUT(buf, ptr, size)						\
+	do {								\
+		if ((buf)->data + size > (buf)->end)		\
+			if (wsm_buf_reserve((buf), size))	\
+				goto nomem;				\
+		memcpy((buf)->data, ptr, size);				\
+		(buf)->data += size;					\
+	} while (0)
+
+#define __WSM_PUT(buf, val, type, cvt)					\
+	do {								\
+		if ((buf)->data + sizeof(type) > (buf)->end)		\
+			if (wsm_buf_reserve((buf), sizeof(type))) \
+				goto nomem;				\
+		*(type *)(buf)->data = cvt(val);			\
+		(buf)->data += sizeof(type);				\
+	} while (0)
+
+#define WSM_PUT8(buf, val)  __WSM_PUT(buf, val, u8, (u8))
+#define WSM_PUT16(buf, val) __WSM_PUT(buf, val, u16, __cpu_to_le16)
+#define WSM_PUT32(buf, val) __WSM_PUT(buf, val, u32, __cpu_to_le32)
+
+static void wsm_buf_reset(struct wsm_buf *buf);
+static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size);
+
+static int wsm_cmd_send(struct cw1200_common *priv,
+			struct wsm_buf *buf,
+			void *arg, u16 cmd, long tmo);
+
+#define wsm_cmd_lock(__priv) mutex_lock(&((__priv)->wsm_cmd_mux))
+#define wsm_cmd_unlock(__priv) mutex_unlock(&((__priv)->wsm_cmd_mux))
+
+/* ******************************************************************** */
+/* WSM API implementation						*/
+
+static int wsm_generic_confirm(struct cw1200_common *priv,
+			     void *arg,
+			     struct wsm_buf *buf)
+{
+	u32 status = WSM_GET32(buf);
+	if (status != WSM_STATUS_SUCCESS)
+		return -EINVAL;
+	return 0;
+
+underflow:
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+int wsm_configuration(struct cw1200_common *priv, struct wsm_configuration *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT32(buf, arg->dot11MaxTransmitMsduLifeTime);
+	WSM_PUT32(buf, arg->dot11MaxReceiveLifeTime);
+	WSM_PUT32(buf, arg->dot11RtsThreshold);
+
+	/* DPD block. */
+	WSM_PUT16(buf, arg->dpdData_size + 12);
+	WSM_PUT16(buf, 1); /* DPD version */
+	WSM_PUT(buf, arg->dot11StationId, ETH_ALEN);
+	WSM_PUT16(buf, 5); /* DPD flags */
+	WSM_PUT(buf, arg->dpdData, arg->dpdData_size);
+
+	ret = wsm_cmd_send(priv, buf, arg,
+			   WSM_CONFIGURATION_REQ_ID, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+static int wsm_configuration_confirm(struct cw1200_common *priv,
+				     struct wsm_configuration *arg,
+				     struct wsm_buf *buf)
+{
+	int i;
+	int status;
+
+	status = WSM_GET32(buf);
+	if (WARN_ON(status != WSM_STATUS_SUCCESS))
+		return -EINVAL;
+
+	WSM_GET(buf, arg->dot11StationId, ETH_ALEN);
+	arg->dot11FrequencyBandsSupported = WSM_GET8(buf);
+	WSM_SKIP(buf, 1);
+	arg->supportedRateMask = WSM_GET32(buf);
+	for (i = 0; i < 2; ++i) {
+		arg->txPowerRange[i].min_power_level = WSM_GET32(buf);
+		arg->txPowerRange[i].max_power_level = WSM_GET32(buf);
+		arg->txPowerRange[i].stepping = WSM_GET32(buf);
+	}
+	return 0;
+
+underflow:
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+/* ******************************************************************** */
+
+int wsm_reset(struct cw1200_common *priv, const struct wsm_reset *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	u16 cmd = WSM_RESET_REQ_ID | WSM_TX_LINK_ID(arg->link_id);
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT32(buf, arg->reset_statistics ? 0 : 1);
+	ret = wsm_cmd_send(priv, buf, NULL, cmd, WSM_CMD_RESET_TIMEOUT);
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+struct wsm_mib {
+	u16 mib_id;
+	void *buf;
+	size_t buf_size;
+};
+
+int wsm_read_mib(struct cw1200_common *priv, u16 mib_id, void *_buf,
+			size_t buf_size)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	struct wsm_mib mib_buf = {
+		.mib_id = mib_id,
+		.buf = _buf,
+		.buf_size = buf_size,
+	};
+	wsm_cmd_lock(priv);
+
+	WSM_PUT16(buf, mib_id);
+	WSM_PUT16(buf, 0);
+
+	ret = wsm_cmd_send(priv, buf, &mib_buf,
+			   WSM_READ_MIB_REQ_ID, WSM_CMD_TIMEOUT);
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+static int wsm_read_mib_confirm(struct cw1200_common *priv,
+				struct wsm_mib *arg,
+				struct wsm_buf *buf)
+{
+	u16 size;
+	if (WARN_ON(WSM_GET32(buf) != WSM_STATUS_SUCCESS))
+		return -EINVAL;
+
+	if (WARN_ON(WSM_GET16(buf) != arg->mib_id))
+		return -EINVAL;
+
+	size = WSM_GET16(buf);
+	if (size > arg->buf_size)
+		size = arg->buf_size;
+
+	WSM_GET(buf, arg->buf, size);
+	arg->buf_size = size;
+	return 0;
+
+underflow:
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+/* ******************************************************************** */
+
+int wsm_write_mib(struct cw1200_common *priv, u16 mib_id, void *_buf,
+			size_t buf_size)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	struct wsm_mib mib_buf = {
+		.mib_id = mib_id,
+		.buf = _buf,
+		.buf_size = buf_size,
+	};
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT16(buf, mib_id);
+	WSM_PUT16(buf, buf_size);
+	WSM_PUT(buf, _buf, buf_size);
+
+	ret = wsm_cmd_send(priv, buf, &mib_buf,
+			   WSM_WRITE_MIB_REQ_ID, WSM_CMD_TIMEOUT);
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+static int wsm_write_mib_confirm(struct cw1200_common *priv,
+				struct wsm_mib *arg,
+				struct wsm_buf *buf)
+{
+	int ret;
+
+	ret = wsm_generic_confirm(priv, arg, buf);
+	if (ret)
+		return ret;
+
+	if (arg->mib_id == WSM_MIB_ID_OPERATIONAL_POWER_MODE) {
+		/* OperationalMode: update PM status. */
+		const char *p = arg->buf;
+		cw1200_enable_powersave(priv, (p[0] & 0x0F) ? true : false);
+	}
+	return 0;
+}
+
+/* ******************************************************************** */
+
+int wsm_scan(struct cw1200_common *priv, const struct wsm_scan *arg)
+{
+	int i;
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	if (arg->num_channels > 48)
+		return -EINVAL;
+
+	if (arg->num_ssids > 2)
+		return -EINVAL;
+
+	if (arg->band > 1)
+		return -EINVAL;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT8(buf, arg->band);
+	WSM_PUT8(buf, arg->type);
+	WSM_PUT8(buf, arg->flags);
+	WSM_PUT8(buf, arg->max_tx_rate);
+	WSM_PUT32(buf, arg->auto_scan_interval);
+	WSM_PUT8(buf, arg->num_probes);
+	WSM_PUT8(buf, arg->num_channels);
+	WSM_PUT8(buf, arg->num_ssids);
+	WSM_PUT8(buf, arg->probe_delay);
+
+	for (i = 0; i < arg->num_channels; ++i) {
+		WSM_PUT16(buf, arg->ch[i].number);
+		WSM_PUT16(buf, 0);
+		WSM_PUT32(buf, arg->ch[i].min_chan_time);
+		WSM_PUT32(buf, arg->ch[i].max_chan_time);
+		WSM_PUT32(buf, 0);
+	}
+
+	for (i = 0; i < arg->num_ssids; ++i) {
+		WSM_PUT32(buf, arg->ssids[i].length);
+		WSM_PUT(buf, &arg->ssids[i].ssid[0],
+			sizeof(arg->ssids[i].ssid));
+	}
+
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_START_SCAN_REQ_ID, WSM_CMD_TIMEOUT);
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_stop_scan(struct cw1200_common *priv)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	wsm_cmd_lock(priv);
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_STOP_SCAN_REQ_ID, WSM_CMD_TIMEOUT);
+	wsm_cmd_unlock(priv);
+	return ret;
+}
+
+
+static int wsm_tx_confirm(struct cw1200_common *priv,
+			  struct wsm_buf *buf,
+			  int link_id)
+{
+	struct wsm_tx_confirm tx_confirm;
+
+	tx_confirm.packet_id = WSM_GET32(buf);
+	tx_confirm.status = WSM_GET32(buf);
+	tx_confirm.tx_rate = WSM_GET8(buf);
+	tx_confirm.ack_failures = WSM_GET8(buf);
+	tx_confirm.flags = WSM_GET16(buf);
+	tx_confirm.media_delay = WSM_GET32(buf);
+	tx_confirm.tx_queue_delay = WSM_GET32(buf);
+
+	cw1200_tx_confirm_cb(priv, link_id, &tx_confirm);
+	return 0;
+
+underflow:
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static int wsm_multi_tx_confirm(struct cw1200_common *priv,
+				struct wsm_buf *buf, int link_id)
+{
+	int ret;
+	int count;
+	int i;
+
+	count = WSM_GET32(buf);
+	if (WARN_ON(count <= 0))
+		return -EINVAL;
+
+	if (count > 1) {
+		/* We already released one buffer, now for the rest */
+		ret = wsm_release_tx_buffer(priv, count - 1);
+		if (ret < 0)
+			return ret;
+		else if (ret > 0)
+			cw1200_bh_wakeup(priv);
+	}
+
+	cw1200_debug_txed_multi(priv, count);
+	for (i = 0; i < count; ++i) {
+		ret = wsm_tx_confirm(priv, buf, link_id);
+		if (ret)
+			return ret;
+	}
+	return ret;
+
+underflow:
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+/* ******************************************************************** */
+
+static int wsm_join_confirm(struct cw1200_common *priv,
+			    struct wsm_join_cnf *arg,
+			    struct wsm_buf *buf)
+{
+	arg->status = WSM_GET32(buf);
+	if (WARN_ON(arg->status) != WSM_STATUS_SUCCESS)
+		return -EINVAL;
+
+	arg->min_power_level = WSM_GET32(buf);
+	arg->max_power_level = WSM_GET32(buf);
+
+	return 0;
+
+underflow:
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+int wsm_join(struct cw1200_common *priv, struct wsm_join *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	struct wsm_join_cnf resp;
+	wsm_cmd_lock(priv);
+
+	WSM_PUT8(buf, arg->mode);
+	WSM_PUT8(buf, arg->band);
+	WSM_PUT16(buf, arg->channel_number);
+	WSM_PUT(buf, &arg->bssid[0], sizeof(arg->bssid));
+	WSM_PUT16(buf, arg->atim_window);
+	WSM_PUT8(buf, arg->preamble_type);
+	WSM_PUT8(buf, arg->probe_for_join);
+	WSM_PUT8(buf, arg->dtim_period);
+	WSM_PUT8(buf, arg->flags);
+	WSM_PUT32(buf, arg->ssid_len);
+	WSM_PUT(buf, &arg->ssid[0], sizeof(arg->ssid));
+	WSM_PUT32(buf, arg->beacon_interval);
+	WSM_PUT32(buf, arg->basic_rate_set);
+
+	priv->tx_burst_idx = -1;
+	ret = wsm_cmd_send(priv, buf, &resp,
+			   WSM_JOIN_REQ_ID, WSM_CMD_TIMEOUT);
+	/* TODO:  Update state based on resp.min|max_power_level */
+
+	priv->join_complete_status = resp.status;
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_set_bss_params(struct cw1200_common *priv,
+		       const struct wsm_set_bss_params *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT8(buf, (arg->reset_beacon_loss ?  0x1 : 0));
+	WSM_PUT8(buf, arg->beacon_lost_count);
+	WSM_PUT16(buf, arg->aid);
+	WSM_PUT32(buf, arg->operational_rate_set);
+
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_SET_BSS_PARAMS_REQ_ID, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_add_key(struct cw1200_common *priv, const struct wsm_add_key *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT(buf, arg, sizeof(*arg));
+
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_ADD_KEY_REQ_ID, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_remove_key(struct cw1200_common *priv, const struct wsm_remove_key *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT8(buf, arg->index);
+	WSM_PUT8(buf, 0);
+	WSM_PUT16(buf, 0);
+
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_REMOVE_KEY_REQ_ID, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_set_tx_queue_params(struct cw1200_common *priv,
+		const struct wsm_set_tx_queue_params *arg, u8 id)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	u8 queue_id_to_wmm_aci[] = {3, 2, 0, 1};
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT8(buf, queue_id_to_wmm_aci[id]);
+	WSM_PUT8(buf, 0);
+	WSM_PUT8(buf, arg->ackPolicy);
+	WSM_PUT8(buf, 0);
+	WSM_PUT32(buf, arg->maxTransmitLifetime);
+	WSM_PUT16(buf, arg->allowedMediumTime);
+	WSM_PUT16(buf, 0);
+
+	ret = wsm_cmd_send(priv, buf, NULL, 0x0012, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_set_edca_params(struct cw1200_common *priv,
+				const struct wsm_edca_params *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	/* Implemented according to specification. */
+
+	WSM_PUT16(buf, arg->params[3].cwmin);
+	WSM_PUT16(buf, arg->params[2].cwmin);
+	WSM_PUT16(buf, arg->params[1].cwmin);
+	WSM_PUT16(buf, arg->params[0].cwmin);
+
+	WSM_PUT16(buf, arg->params[3].cwmax);
+	WSM_PUT16(buf, arg->params[2].cwmax);
+	WSM_PUT16(buf, arg->params[1].cwmax);
+	WSM_PUT16(buf, arg->params[0].cwmax);
+
+	WSM_PUT8(buf, arg->params[3].aifns);
+	WSM_PUT8(buf, arg->params[2].aifns);
+	WSM_PUT8(buf, arg->params[1].aifns);
+	WSM_PUT8(buf, arg->params[0].aifns);
+
+	WSM_PUT16(buf, arg->params[3].txop_limit);
+	WSM_PUT16(buf, arg->params[2].txop_limit);
+	WSM_PUT16(buf, arg->params[1].txop_limit);
+	WSM_PUT16(buf, arg->params[0].txop_limit);
+
+	WSM_PUT32(buf, arg->params[3].max_rx_lifetime);
+	WSM_PUT32(buf, arg->params[2].max_rx_lifetime);
+	WSM_PUT32(buf, arg->params[1].max_rx_lifetime);
+	WSM_PUT32(buf, arg->params[0].max_rx_lifetime);
+
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_EDCA_PARAMS_REQ_ID, WSM_CMD_TIMEOUT);
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_switch_channel(struct cw1200_common *priv,
+			const struct wsm_switch_channel *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT8(buf, arg->mode);
+	WSM_PUT8(buf, arg->switch_count);
+	WSM_PUT16(buf, arg->channel_number);
+
+	priv->channel_switch_in_progress = 1;
+
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_SWITCH_CHANNEL_REQ_ID, WSM_CMD_TIMEOUT);
+	if (ret)
+		priv->channel_switch_in_progress = 0;
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	priv->ps_mode_switch_in_progress = 1;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT8(buf, arg->mode);
+	WSM_PUT8(buf, arg->fast_psm_idle_period);
+	WSM_PUT8(buf, arg->ap_psm_change_period);
+	WSM_PUT8(buf, arg->min_auto_pspoll_period);
+
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_SET_PM_REQ_ID, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_start(struct cw1200_common *priv, const struct wsm_start *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT8(buf, arg->mode);
+	WSM_PUT8(buf, arg->band);
+	WSM_PUT16(buf, arg->channel_number);
+	WSM_PUT32(buf, arg->ct_window);
+	WSM_PUT32(buf, arg->beacon_interval);
+	WSM_PUT8(buf, arg->dtim_period);
+	WSM_PUT8(buf, arg->preamble);
+	WSM_PUT8(buf, arg->probe_delay);
+	WSM_PUT8(buf, arg->ssid_len);
+	WSM_PUT(buf, arg->ssid, sizeof(arg->ssid));
+	WSM_PUT32(buf, arg->basic_rate_set);
+
+	priv->tx_burst_idx = -1;
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_START_REQ_ID, WSM_CMD_START_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_beacon_transmit(struct cw1200_common *priv,
+			const struct wsm_beacon_transmit *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT32(buf, arg->enable_beaconing ? 1 : 0);
+
+	ret = wsm_cmd_send(priv, buf, NULL,
+			   WSM_BEACON_TRANSMIT_REQ_ID, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_start_find(struct cw1200_common *priv)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+	ret = wsm_cmd_send(priv, buf, NULL, 0x0019, WSM_CMD_TIMEOUT);
+	wsm_cmd_unlock(priv);
+	return ret;
+}
+
+/* ******************************************************************** */
+
+int wsm_stop_find(struct cw1200_common *priv)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+	ret = wsm_cmd_send(priv, buf, NULL, 0x001A, WSM_CMD_TIMEOUT);
+	wsm_cmd_unlock(priv);
+	return ret;
+}
+
+/* ******************************************************************** */
+
+int wsm_map_link(struct cw1200_common *priv, const struct wsm_map_link *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	u16 cmd = 0x001C | WSM_TX_LINK_ID(arg->link_id);
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT(buf, &arg->mac_addr[0], sizeof(arg->mac_addr));
+	WSM_PUT16(buf, 0);
+
+	ret = wsm_cmd_send(priv, buf, NULL, cmd, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+
+int wsm_update_ie(struct cw1200_common *priv,
+		  const struct wsm_update_ie *arg)
+{
+	int ret;
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT16(buf, arg->what);
+	WSM_PUT16(buf, arg->count);
+	WSM_PUT(buf, arg->ies, arg->length);
+
+	ret = wsm_cmd_send(priv, buf, NULL, 0x001B, WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+
+/* ******************************************************************** */
+int wsm_set_probe_responder(struct cw1200_common *priv, bool enable)
+{
+	priv->rx_filter.probeResponder = enable;
+	return wsm_set_rx_filter(priv, &priv->rx_filter);
+}
+
+/* ******************************************************************** */
+/* WSM indication events implementation					*/
+const char * const cw1200_fw_types[] = {
+	"ETF",
+	"WFM",
+	"WSM",
+	"HI test",
+	"Platform test"
+};
+
+static int wsm_startup_indication(struct cw1200_common *priv,
+					struct wsm_buf *buf)
+{
+	priv->wsm_caps.input_buffers     = WSM_GET16(buf);
+	priv->wsm_caps.input_buffer_size = WSM_GET16(buf);
+	priv->wsm_caps.hw_id	  = WSM_GET16(buf);
+	priv->wsm_caps.hw_subid	  = WSM_GET16(buf);
+	priv->wsm_caps.status	  = WSM_GET16(buf);
+	priv->wsm_caps.fw_cap	  = WSM_GET16(buf);
+	priv->wsm_caps.fw_type	  = WSM_GET16(buf);
+	priv->wsm_caps.fw_api	  = WSM_GET16(buf);
+	priv->wsm_caps.fw_build   = WSM_GET16(buf);
+	priv->wsm_caps.fw_ver     = WSM_GET16(buf);
+	WSM_GET(buf, priv->wsm_caps.fw_label, sizeof(priv->wsm_caps.fw_label));
+	priv->wsm_caps.fw_label[sizeof(priv->wsm_caps.fw_label) - 1] = 0; /* Do not trust FW too much... */
+
+	if (WARN_ON(priv->wsm_caps.status))
+		return -EINVAL;
+
+	if (WARN_ON(priv->wsm_caps.fw_type > 4))
+		return -EINVAL;
+
+	pr_info("CW1200 WSM init done.\n"
+		"   Input buffers: %d x %d bytes\n"
+		"   Hardware: %d.%d\n"
+		"   %s firmware [%s], ver: %d, build: %d,"
+		"   api: %d, cap: 0x%.4X\n",
+		priv->wsm_caps.input_buffers,
+		priv->wsm_caps.input_buffer_size,
+		priv->wsm_caps.hw_id, priv->wsm_caps.hw_subid,
+		cw1200_fw_types[priv->wsm_caps.fw_type],
+		priv->wsm_caps.fw_label, priv->wsm_caps.fw_ver,
+		priv->wsm_caps.fw_build,
+		priv->wsm_caps.fw_api, priv->wsm_caps.fw_cap);
+
+	/* Disable unsupported frequency bands */
+	if (!(priv->wsm_caps.fw_cap & 0x1))
+		priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
+	if (!(priv->wsm_caps.fw_cap & 0x2))
+		priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
+
+	priv->firmware_ready = 1;
+	wake_up(&priv->wsm_startup_done);
+	return 0;
+
+underflow:
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static int wsm_receive_indication(struct cw1200_common *priv,
+				  int link_id,
+				  struct wsm_buf *buf,
+				  struct sk_buff **skb_p)
+{
+	struct wsm_rx rx;
+	struct ieee80211_hdr *hdr;
+	size_t hdr_len;
+	__le16 fctl;
+
+	rx.status = WSM_GET32(buf);
+	rx.channel_number = WSM_GET16(buf);
+	rx.rx_rate = WSM_GET8(buf);
+	rx.rcpi_rssi = WSM_GET8(buf);
+	rx.flags = WSM_GET32(buf);
+
+	/* FW Workaround: Drop probe resp or
+	   beacon when RSSI is 0
+	*/
+	hdr = (struct ieee80211_hdr *)(*skb_p)->data;
+
+	if (!rx.rcpi_rssi &&
+	    (ieee80211_is_probe_resp(hdr->frame_control) ||
+	     ieee80211_is_beacon(hdr->frame_control)))
+		return 0;
+
+	/* If no RSSI subscription has been made,
+	 * convert RCPI to RSSI here
+	 */
+	if (!priv->cqm_use_rssi)
+		rx.rcpi_rssi = rx.rcpi_rssi / 2 - 110;
+
+	fctl = *(__le16 *)buf->data;
+	hdr_len = buf->data - buf->begin;
+	skb_pull(*skb_p, hdr_len);
+	if (!rx.status && ieee80211_is_deauth(fctl)) {
+		if (priv->join_status == CW1200_JOIN_STATUS_STA) {
+			/* Shedule unjoin work */
+			pr_debug("[WSM] Issue unjoin command (RX).\n");
+			wsm_lock_tx_async(priv);
+			if (queue_work(priv->workqueue,
+				       &priv->unjoin_work) <= 0)
+				wsm_unlock_tx(priv);
+		}
+	}
+	cw1200_rx_cb(priv, &rx, link_id, skb_p);
+	if (*skb_p)
+		skb_push(*skb_p, hdr_len);
+
+	return 0;
+
+underflow:
+	return -EINVAL;
+}
+
+static int wsm_event_indication(struct cw1200_common *priv, struct wsm_buf *buf)
+{
+	int first;
+	struct cw1200_wsm_event *event;
+
+	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
+		/* STA is stopped. */
+		return 0;
+	}
+
+	event = kzalloc(sizeof(struct cw1200_wsm_event), GFP_KERNEL);
+
+	event->evt.id = __le32_to_cpu(WSM_GET32(buf));
+	event->evt.data = __le32_to_cpu(WSM_GET32(buf));
+
+	pr_debug("[WSM] Event: %d(%d)\n",
+		 event->evt.id, event->evt.data);
+
+	spin_lock(&priv->event_queue_lock);
+	first = list_empty(&priv->event_queue);
+	list_add_tail(&event->link, &priv->event_queue);
+	spin_unlock(&priv->event_queue_lock);
+
+	if (first)
+		queue_work(priv->workqueue, &priv->event_handler);
+
+	return 0;
+
+underflow:
+	kfree(event);
+	return -EINVAL;
+}
+
+static int wsm_channel_switch_indication(struct cw1200_common *priv,
+					 struct wsm_buf *buf)
+{
+	WARN_ON(WSM_GET32(buf));
+
+	priv->channel_switch_in_progress = 0;
+	wake_up(&priv->channel_switch_done);
+
+	wsm_unlock_tx(priv);
+
+	return 0;
+
+underflow:
+	return -EINVAL;
+}
+
+static int wsm_set_pm_indication(struct cw1200_common *priv,
+				 struct wsm_buf *buf)
+{
+	/* TODO:  Check buf (struct wsm_set_pm_complete) for validity */
+	if (priv->ps_mode_switch_in_progress) {
+		priv->ps_mode_switch_in_progress = 0;
+		wake_up(&priv->ps_mode_switch_done);
+	}
+	return 0;
+}
+
+static int wsm_scan_started(struct cw1200_common *priv, void *arg,
+			    struct wsm_buf *buf)
+{
+	u32 status = WSM_GET32(buf);
+	if (status != WSM_STATUS_SUCCESS) {
+		cw1200_scan_failed_cb(priv);
+		return -EINVAL;
+	}
+	return 0;
+
+underflow:
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static int wsm_scan_complete_indication(struct cw1200_common *priv,
+					struct wsm_buf *buf)
+{
+	struct wsm_scan_complete arg;
+	arg.status = WSM_GET32(buf);
+	arg.psm = WSM_GET8(buf);
+	arg.num_channels = WSM_GET8(buf);
+	cw1200_scan_complete_cb(priv, &arg);
+
+	return 0;
+
+underflow:
+	return -EINVAL;
+}
+
+static int wsm_join_complete_indication(struct cw1200_common *priv,
+					struct wsm_buf *buf)
+{
+	struct wsm_join_complete arg;
+	arg.status = WSM_GET32(buf);
+	pr_debug("[WSM] Join complete indication, status: %d\n", arg.status);
+	cw1200_join_complete_cb(priv, &arg);
+
+	return 0;
+
+underflow:
+	return -EINVAL;
+}
+
+static int wsm_find_complete_indication(struct cw1200_common *priv,
+					struct wsm_buf *buf)
+{
+	pr_warn("Implement find_complete_indication\n");
+	return 0;
+}
+
+static int wsm_ba_timeout_indication(struct cw1200_common *priv,
+				     struct wsm_buf *buf)
+{
+	u32 dummy;
+	u8 tid;
+	u8 dummy2;
+	u8 addr[ETH_ALEN];
+
+	dummy = WSM_GET32(buf);
+	tid = WSM_GET8(buf);
+	dummy2 = WSM_GET8(buf);
+	WSM_GET(buf, addr, ETH_ALEN);
+
+	pr_info("BlockACK timeout, tid %d, addr %pM\n",
+		tid, addr);
+
+	return 0;
+
+underflow:
+	return -EINVAL;
+}
+
+static int wsm_suspend_resume_indication(struct cw1200_common *priv,
+					 int link_id, struct wsm_buf *buf)
+{
+	u32 flags;
+	struct wsm_suspend_resume arg;
+
+	flags = WSM_GET32(buf);
+	arg.link_id = link_id;
+	arg.stop = !(flags & 1);
+	arg.multicast = !!(flags & 8);
+	arg.queue = (flags >> 1) & 3;
+
+	cw1200_suspend_resume(priv, &arg);
+
+	return 0;
+
+underflow:
+	return -EINVAL;
+}
+
+
+/* ******************************************************************** */
+/* WSM TX								*/
+
+static int wsm_cmd_send(struct cw1200_common *priv,
+			struct wsm_buf *buf,
+			void *arg, u16 cmd, long tmo)
+{
+	size_t buf_len = buf->data - buf->begin;
+	int ret;
+
+	/* Don't bother if we're dead. */
+	if (priv->bh_error) {
+		ret = 0;
+		goto done;
+	}
+
+	/* Block until the cmd buffer is completed.  Tortuous. */
+	spin_lock(&priv->wsm_cmd.lock);
+	while (!priv->wsm_cmd.done) {
+		spin_unlock(&priv->wsm_cmd.lock);
+		spin_lock(&priv->wsm_cmd.lock);
+	}
+	priv->wsm_cmd.done = 0;
+	spin_unlock(&priv->wsm_cmd.lock);
+
+	if (cmd == WSM_WRITE_MIB_REQ_ID ||
+	    cmd == WSM_READ_MIB_REQ_ID)
+		pr_debug("[WSM] >>> 0x%.4X [MIB: 0x%.4X] (%zu)\n",
+			 cmd, __le16_to_cpu(((__le16 *)buf->begin)[2]),
+			 buf_len);
+	else
+		pr_debug("[WSM] >>> 0x%.4X (%zu)\n", cmd, buf_len);
+
+	/*
+	 * Due to buggy SPI on CW1200, we need to
+	 * pad the message by a few bytes to ensure
+	 * that it's completely received.
+	 */
+#ifdef CONFIG_CW1200_ETF
+	if (!etf_mode)
+#endif
+		buf_len += 4;
+
+	/* Fill HI message header */
+	/* BH will add sequence number */
+	((__le16 *)buf->begin)[0] = __cpu_to_le16(buf_len);
+	((__le16 *)buf->begin)[1] = __cpu_to_le16(cmd);
+
+	spin_lock(&priv->wsm_cmd.lock);
+	BUG_ON(priv->wsm_cmd.ptr);
+	priv->wsm_cmd.ptr = buf->begin;
+	priv->wsm_cmd.len = buf_len;
+	priv->wsm_cmd.arg = arg;
+	priv->wsm_cmd.cmd = cmd;
+	spin_unlock(&priv->wsm_cmd.lock);
+
+	cw1200_bh_wakeup(priv);
+
+	/* Wait for command completion */
+	ret = wait_event_timeout(priv->wsm_cmd_wq,
+				 priv->wsm_cmd.done, tmo);
+
+	if (!ret && !priv->wsm_cmd.done) {
+		spin_lock(&priv->wsm_cmd.lock);
+		priv->wsm_cmd.done = 1;
+		priv->wsm_cmd.ptr = NULL;
+		spin_unlock(&priv->wsm_cmd.lock);
+		if (priv->bh_error) {
+			/* Return ok to help system cleanup */
+			ret = 0;
+		} else {
+			pr_err("CMD req (0x%04x) stuck in firmware, killing BH\n", priv->wsm_cmd.cmd);
+			print_hex_dump_bytes("REQDUMP: ", DUMP_PREFIX_NONE,
+					     buf->begin, buf_len);
+			pr_err("Outstanding outgoing frames:  %d\n", priv->hw_bufs_used);
+
+			/* Kill BH thread to report the error to the top layer. */
+			atomic_add(1, &priv->bh_term);
+			wake_up(&priv->bh_wq);
+			ret = -ETIMEDOUT;
+		}
+	} else {
+		spin_lock(&priv->wsm_cmd.lock);
+		BUG_ON(!priv->wsm_cmd.done);
+		ret = priv->wsm_cmd.ret;
+		spin_unlock(&priv->wsm_cmd.lock);
+	}
+done:
+	wsm_buf_reset(buf);
+	return ret;
+}
+
+#ifdef CONFIG_CW1200_ETF
+int wsm_raw_cmd(struct cw1200_common *priv, u8 *data, size_t len)
+{
+	struct wsm_buf *buf = &priv->wsm_cmd_buf;
+	int ret;
+
+	u16 *cmd = (u16 *)(data + 2);
+
+	wsm_cmd_lock(priv);
+
+	WSM_PUT(buf, data + 4, len - 4);  /* Skip over header (u16+u16) */
+
+	ret = wsm_cmd_send(priv, buf, NULL, __le16_to_cpu(*cmd), WSM_CMD_TIMEOUT);
+
+	wsm_cmd_unlock(priv);
+	return ret;
+
+nomem:
+	wsm_cmd_unlock(priv);
+	return -ENOMEM;
+}
+#endif /* CONFIG_CW1200_ETF */
+
+/* ******************************************************************** */
+/* WSM TX port control							*/
+
+void wsm_lock_tx(struct cw1200_common *priv)
+{
+	wsm_cmd_lock(priv);
+	if (atomic_add_return(1, &priv->tx_lock) == 1) {
+		if (wsm_flush_tx(priv))
+			pr_debug("[WSM] TX is locked.\n");
+	}
+	wsm_cmd_unlock(priv);
+}
+
+void wsm_lock_tx_async(struct cw1200_common *priv)
+{
+	if (atomic_add_return(1, &priv->tx_lock) == 1)
+		pr_debug("[WSM] TX is locked (async).\n");
+}
+
+bool wsm_flush_tx(struct cw1200_common *priv)
+{
+	unsigned long timestamp = jiffies;
+	bool pending = false;
+	long timeout;
+	int i;
+
+	/* Flush must be called with TX lock held. */
+	BUG_ON(!atomic_read(&priv->tx_lock));
+
+	/* First check if we really need to do something.
+	 * It is safe to use unprotected access, as hw_bufs_used
+	 * can only decrements.
+	 */
+	if (!priv->hw_bufs_used)
+		return true;
+
+	if (priv->bh_error) {
+		/* In case of failure do not wait for magic. */
+		pr_err("[WSM] Fatal error occured, will not flush TX.\n");
+		return false;
+	} else {
+		/* Get a timestamp of "oldest" frame */
+		for (i = 0; i < 4; ++i)
+			pending |= cw1200_queue_get_xmit_timestamp(
+					&priv->tx_queue[i],
+					&timestamp, 0xffffffff);
+		/* If there's nothing pending, we're good */
+		if (!pending)
+			return true;
+
+		timeout = timestamp + WSM_CMD_LAST_CHANCE_TIMEOUT - jiffies;
+		if (timeout < 0 || wait_event_timeout(priv->bh_evt_wq,
+						      !priv->hw_bufs_used,
+						      timeout) <= 0) {
+			/* Hmmm... Not good. Frame had stuck in firmware. */
+			priv->bh_error = 1;
+			wiphy_err(priv->hw->wiphy, "[WSM] TX Frames (%d) stuck in firmware, killing BH\n", priv->hw_bufs_used);
+			wake_up(&priv->bh_wq);
+			return false;
+		}
+
+		/* Ok, everything is flushed. */
+		return true;
+	}
+}
+
+void wsm_unlock_tx(struct cw1200_common *priv)
+{
+	int tx_lock;
+	tx_lock = atomic_sub_return(1, &priv->tx_lock);
+	BUG_ON(tx_lock < 0);
+
+	if (tx_lock == 0) {
+		if (!priv->bh_error)
+			cw1200_bh_wakeup(priv);
+		pr_debug("[WSM] TX is unlocked.\n");
+	}
+}
+
+/* ******************************************************************** */
+/* WSM RX								*/
+
+int wsm_handle_exception(struct cw1200_common *priv, u8 *data, size_t len)
+{
+	struct wsm_buf buf;
+	u32 reason;
+	u32 reg[18];
+	char fname[48];
+	unsigned int i;
+
+	static const char * const reason_str[] = {
+		"undefined instruction",
+		"prefetch abort",
+		"data abort",
+		"unknown error",
+	};
+
+	buf.begin = buf.data = data;
+	buf.end = &buf.begin[len];
+
+	reason = WSM_GET32(&buf);
+	for (i = 0; i < ARRAY_SIZE(reg); ++i)
+		reg[i] = WSM_GET32(&buf);
+	WSM_GET(&buf, fname, sizeof(fname));
+
+	if (reason < 4)
+		wiphy_err(priv->hw->wiphy,
+			  "Firmware exception: %s.\n",
+			  reason_str[reason]);
+	else
+		wiphy_err(priv->hw->wiphy,
+			  "Firmware assert at %.*s, line %d\n",
+			  (int) sizeof(fname), fname, reg[1]);
+
+	for (i = 0; i < 12; i += 4)
+		wiphy_err(priv->hw->wiphy,
+			  "R%d: 0x%.8X, R%d: 0x%.8X, R%d: 0x%.8X, R%d: 0x%.8X,\n",
+			  i + 0, reg[i + 0], i + 1, reg[i + 1],
+			  i + 2, reg[i + 2], i + 3, reg[i + 3]);
+	wiphy_err(priv->hw->wiphy,
+		  "R12: 0x%.8X, SP: 0x%.8X, LR: 0x%.8X, PC: 0x%.8X,\n",
+		  reg[i + 0], reg[i + 1], reg[i + 2], reg[i + 3]);
+	i += 4;
+	wiphy_err(priv->hw->wiphy,
+		  "CPSR: 0x%.8X, SPSR: 0x%.8X\n",
+		  reg[i + 0], reg[i + 1]);
+
+	print_hex_dump_bytes("R1: ", DUMP_PREFIX_NONE,
+			     fname, sizeof(fname));
+	return 0;
+
+underflow:
+	wiphy_err(priv->hw->wiphy, "Firmware exception.\n");
+	print_hex_dump_bytes("Exception: ", DUMP_PREFIX_NONE,
+			     data, len);
+	return -EINVAL;
+}
+
+int wsm_handle_rx(struct cw1200_common *priv, u16 id,
+		  struct wsm_hdr *wsm, struct sk_buff **skb_p)
+{
+	int ret = 0;
+	struct wsm_buf wsm_buf;
+	int link_id = (id >> 6) & 0x0F;
+
+	/* Strip link id. */
+	id &= ~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX);
+
+	wsm_buf.begin = (u8 *)&wsm[0];
+	wsm_buf.data = (u8 *)&wsm[1];
+	wsm_buf.end = &wsm_buf.begin[__le32_to_cpu(wsm->len)];
+
+	pr_debug("[WSM] <<< 0x%.4X (%td)\n", id,
+		 wsm_buf.end - wsm_buf.begin);
+
+#ifdef CONFIG_CW1200_ETF
+	if (etf_mode) {
+		struct sk_buff *skb = alloc_skb(wsm_buf.end - wsm_buf.begin, GFP_KERNEL);
+
+		/* Strip out Sequence num before passing up */
+		wsm->id = __le16_to_cpu(wsm->id);
+		wsm->id &= 0x0FFF;
+		wsm->id = __cpu_to_le16(wsm->id);
+
+		memcpy(skb_put(skb, wsm_buf.end - wsm_buf.begin),
+		       wsm_buf.begin,
+		       wsm_buf.end - wsm_buf.begin);
+		skb_queue_tail(&priv->etf_q, skb);
+
+		/* Special case for startup */
+		if (id == WSM_STARTUP_IND_ID) {
+			wsm_startup_indication(priv, &wsm_buf);
+		} else if (id & 0x0400) {
+			spin_lock(&priv->wsm_cmd.lock);
+			priv->wsm_cmd.done = 1;
+			spin_unlock(&priv->wsm_cmd.lock);
+			wake_up(&priv->wsm_cmd_wq);
+		}
+
+		goto out;
+	}
+#endif
+
+	if (id == WSM_TX_CONFIRM_IND_ID) {
+		ret = wsm_tx_confirm(priv, &wsm_buf, link_id);
+	} else if (id == WSM_MULTI_TX_CONFIRM_ID) {
+		ret = wsm_multi_tx_confirm(priv, &wsm_buf, link_id);
+	} else if (id & 0x0400) {
+		void *wsm_arg;
+		u16 wsm_cmd;
+
+		/* Do not trust FW too much. Protection against repeated
+		 * response and race condition removal (see above).
+		 */
+		spin_lock(&priv->wsm_cmd.lock);
+		wsm_arg = priv->wsm_cmd.arg;
+		wsm_cmd = priv->wsm_cmd.cmd &
+				~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX);
+		priv->wsm_cmd.cmd = 0xFFFF;
+		spin_unlock(&priv->wsm_cmd.lock);
+
+		if (WARN_ON((id & ~0x0400) != wsm_cmd)) {
+			/* Note that any non-zero is a fatal retcode. */
+			ret = -EINVAL;
+			goto out;
+		}
+
+		/* Note that wsm_arg can be NULL in case of timeout in
+		 * wsm_cmd_send().
+		 */
+
+		switch (id) {
+		case WSM_READ_MIB_RESP_ID:
+			if (wsm_arg)
+				ret = wsm_read_mib_confirm(priv, wsm_arg,
+								&wsm_buf);
+			break;
+		case WSM_WRITE_MIB_RESP_ID:
+			if (wsm_arg)
+				ret = wsm_write_mib_confirm(priv, wsm_arg,
+							    &wsm_buf);
+			break;
+		case WSM_START_SCAN_RESP_ID:
+			if (wsm_arg)
+				ret = wsm_scan_started(priv, wsm_arg, &wsm_buf);
+			break;
+		case WSM_CONFIGURATION_RESP_ID:
+			if (wsm_arg)
+				ret = wsm_configuration_confirm(priv, wsm_arg,
+								&wsm_buf);
+			break;
+		case WSM_JOIN_RESP_ID:
+			if (wsm_arg)
+				ret = wsm_join_confirm(priv, wsm_arg, &wsm_buf);
+			break;
+		case WSM_STOP_SCAN_RESP_ID:
+		case WSM_RESET_RESP_ID:
+		case WSM_ADD_KEY_RESP_ID:
+		case WSM_REMOVE_KEY_RESP_ID:
+		case WSM_SET_PM_RESP_ID:
+		case WSM_SET_BSS_PARAMS_RESP_ID:
+		case 0x0412: /* set_tx_queue_params */
+		case WSM_EDCA_PARAMS_RESP_ID:
+		case WSM_SWITCH_CHANNEL_RESP_ID:
+		case WSM_START_RESP_ID:
+		case WSM_BEACON_TRANSMIT_RESP_ID:
+		case 0x0419: /* start_find */
+		case 0x041A: /* stop_find */
+		case 0x041B: /* update_ie */
+		case 0x041C: /* map_link */
+			WARN_ON(wsm_arg != NULL);
+			ret = wsm_generic_confirm(priv, wsm_arg, &wsm_buf);
+			if (ret) {
+				wiphy_warn(priv->hw->wiphy,
+					   "wsm_generic_confirm failed for request 0x%04x.\n",
+					   id & ~0x0400);
+
+				/* often 0x407 and 0x410 occur, this means we're dead.. */
+				if (priv->join_status >= CW1200_JOIN_STATUS_JOINING) {
+					wsm_lock_tx(priv);
+					if (queue_work(priv->workqueue, &priv->unjoin_work) <= 0)
+						wsm_unlock_tx(priv);
+				}
+			}
+			break;
+		default:
+			wiphy_warn(priv->hw->wiphy,
+				   "Unrecognized confirmation 0x%04x\n",
+				   id & ~0x0400);
+		}
+
+		spin_lock(&priv->wsm_cmd.lock);
+		priv->wsm_cmd.ret = ret;
+		priv->wsm_cmd.done = 1;
+		spin_unlock(&priv->wsm_cmd.lock);
+
+		ret = 0; /* Error response from device should ne stop BH. */
+
+		wake_up(&priv->wsm_cmd_wq);
+	} else if (id & 0x0800) {
+		switch (id) {
+		case WSM_STARTUP_IND_ID:
+			ret = wsm_startup_indication(priv, &wsm_buf);
+			break;
+		case WSM_RECEIVE_IND_ID:
+			ret = wsm_receive_indication(priv, link_id,
+						     &wsm_buf, skb_p);
+			break;
+		case 0x0805:
+			ret = wsm_event_indication(priv, &wsm_buf);
+			break;
+		case WSM_SCAN_COMPLETE_IND_ID:
+			ret = wsm_scan_complete_indication(priv, &wsm_buf);
+			break;
+		case 0x0808:
+			ret = wsm_ba_timeout_indication(priv, &wsm_buf);
+			break;
+		case 0x0809:
+			ret = wsm_set_pm_indication(priv, &wsm_buf);
+			break;
+		case 0x080A:
+			ret = wsm_channel_switch_indication(priv, &wsm_buf);
+			break;
+		case 0x080B:
+			ret = wsm_find_complete_indication(priv, &wsm_buf);
+			break;
+		case 0x080C:
+			ret = wsm_suspend_resume_indication(priv,
+					link_id, &wsm_buf);
+			break;
+		case 0x080F:
+			ret = wsm_join_complete_indication(priv, &wsm_buf);
+			break;
+		default:
+			pr_warn("Unrecognised WSM ID %04x\n", id);
+		}
+	} else {
+		WARN_ON(1);
+		ret = -EINVAL;
+	}
+out:
+	return ret;
+}
+
+static bool wsm_handle_tx_data(struct cw1200_common *priv,
+			       struct wsm_tx *wsm,
+			       const struct ieee80211_tx_info *tx_info,
+			       const struct cw1200_txpriv *txpriv,
+			       struct cw1200_queue *queue)
+{
+	bool handled = false;
+	const struct ieee80211_hdr *frame =
+		(struct ieee80211_hdr *)&((u8 *)wsm)[txpriv->offset];
+	__le16 fctl = frame->frame_control;
+	enum {
+		do_probe,
+		do_drop,
+		do_wep,
+		do_tx,
+	} action = do_tx;
+
+	switch (priv->mode) {
+	case NL80211_IFTYPE_STATION:
+		if (priv->join_status == CW1200_JOIN_STATUS_MONITOR)
+			action = do_tx;
+		else if (priv->join_status < CW1200_JOIN_STATUS_PRE_STA)
+			action = do_drop;
+		break;
+	case NL80211_IFTYPE_AP:
+		if (!priv->join_status) {
+			action = do_drop;
+		} else if (!(BIT(txpriv->raw_link_id) &
+			     (BIT(0) | priv->link_id_map))) {
+			wiphy_warn(priv->hw->wiphy,
+				   "A frame with expired link id is dropped.\n");
+			action = do_drop;
+		}
+		if (cw1200_queue_get_generation(wsm->packet_id) >
+				CW1200_MAX_REQUEUE_ATTEMPTS) {
+			/* HACK!!! WSM324 firmware has tendency to requeue
+			 * multicast frames in a loop, causing performance
+			 * drop and high power consumption of the driver.
+			 * In this situation it is better just to drop
+			 * the problematic frame.
+			 */
+			wiphy_warn(priv->hw->wiphy,
+				   "Too many attempts to requeue a frame; dropped.\n");
+			action = do_drop;
+		}
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		if (priv->join_status != CW1200_JOIN_STATUS_IBSS)
+			action = do_drop;
+		break;
+	case NL80211_IFTYPE_MESH_POINT:
+		action = do_tx; /* TODO:  Test me! */
+		break;
+	case NL80211_IFTYPE_MONITOR:
+	default:
+		action = do_drop;
+		break;
+	}
+
+	if (action == do_tx) {
+		if (ieee80211_is_nullfunc(fctl)) {
+			spin_lock(&priv->bss_loss_lock);
+			if (priv->bss_loss_state) {
+				priv->bss_loss_confirm_id = wsm->packet_id;
+				wsm->queue_id = WSM_QUEUE_VOICE;
+			}
+			spin_unlock(&priv->bss_loss_lock);
+		} else if (ieee80211_is_probe_req(fctl)) {
+			action = do_probe;
+		} else if (ieee80211_is_deauth(fctl) &&
+			   priv->mode != NL80211_IFTYPE_AP) {
+			pr_debug("[WSM] Issue unjoin command due to tx deauth.\n");
+			wsm_lock_tx_async(priv);
+			if (queue_work(priv->workqueue,
+				       &priv->unjoin_work) <= 0)
+				wsm_unlock_tx(priv);
+		} else if (ieee80211_has_protected(fctl) &&
+			   tx_info->control.hw_key &&
+			   tx_info->control.hw_key->keyidx != priv->wep_default_key_id &&
+			   (tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
+			    tx_info->control.hw_key->cipher == WLAN_CIPHER_SUITE_WEP104)) {
+			action = do_wep;
+		}
+	}
+
+	switch (action) {
+	case do_probe:
+		/* An interesting FW "feature". Device filters probe responses.
+		 * The easiest way to get it back is to convert
+		 * probe request into WSM start_scan command.
+		 */
+		pr_debug("[WSM] Convert probe request to scan.\n");
+		wsm_lock_tx_async(priv);
+		priv->pending_frame_id = __le32_to_cpu(wsm->packet_id);
+		if (queue_delayed_work(priv->workqueue,
+				       &priv->scan.probe_work, 0) <= 0)
+			wsm_unlock_tx(priv);
+		handled = true;
+		break;
+	case do_drop:
+		pr_debug("[WSM] Drop frame (0x%.4X).\n", fctl);
+		BUG_ON(cw1200_queue_remove(queue,
+					   __le32_to_cpu(wsm->packet_id)));
+		handled = true;
+		break;
+	case do_wep:
+		pr_debug("[WSM] Issue set_default_wep_key.\n");
+		wsm_lock_tx_async(priv);
+		priv->wep_default_key_id = tx_info->control.hw_key->keyidx;
+		priv->pending_frame_id = __le32_to_cpu(wsm->packet_id);
+		if (queue_work(priv->workqueue, &priv->wep_key_work) <= 0)
+			wsm_unlock_tx(priv);
+		handled = true;
+		break;
+	case do_tx:
+		pr_debug("[WSM] Transmit frame.\n");
+		break;
+	default:
+		/* Do nothing */
+		break;
+	}
+	return handled;
+}
+
+static int cw1200_get_prio_queue(struct cw1200_common *priv,
+				 u32 link_id_map, int *total)
+{
+	static const int urgent = BIT(CW1200_LINK_ID_AFTER_DTIM) |
+		BIT(CW1200_LINK_ID_UAPSD);
+	struct wsm_edca_queue_params *edca;
+	unsigned score, best = -1;
+	int winner = -1;
+	int queued;
+	int i;
+
+	/* search for a winner using edca params */
+	for (i = 0; i < 4; ++i) {
+		queued = cw1200_queue_get_num_queued(&priv->tx_queue[i],
+				link_id_map);
+		if (!queued)
+			continue;
+		*total += queued;
+		edca = &priv->edca.params[i];
+		score = ((edca->aifns + edca->cwmin) << 16) +
+			((edca->cwmax - edca->cwmin) *
+			 (get_random_int() & 0xFFFF));
+		if (score < best && (winner < 0 || i != 3)) {
+			best = score;
+			winner = i;
+		}
+	}
+
+	/* override winner if bursting */
+	if (winner >= 0 && priv->tx_burst_idx >= 0 &&
+	    winner != priv->tx_burst_idx &&
+	    !cw1200_queue_get_num_queued(
+		    &priv->tx_queue[winner],
+		    link_id_map & urgent) &&
+	    cw1200_queue_get_num_queued(
+		    &priv->tx_queue[priv->tx_burst_idx],
+		    link_id_map))
+		winner = priv->tx_burst_idx;
+
+	return winner;
+}
+
+static int wsm_get_tx_queue_and_mask(struct cw1200_common *priv,
+				     struct cw1200_queue **queue_p,
+				     u32 *tx_allowed_mask_p,
+				     bool *more)
+{
+	int idx;
+	u32 tx_allowed_mask;
+	int total = 0;
+
+	/* Search for a queue with multicast frames buffered */
+	if (priv->tx_multicast) {
+		tx_allowed_mask = BIT(CW1200_LINK_ID_AFTER_DTIM);
+		idx = cw1200_get_prio_queue(priv,
+				tx_allowed_mask, &total);
+		if (idx >= 0) {
+			*more = total > 1;
+			goto found;
+		}
+	}
+
+	/* Search for unicast traffic */
+	tx_allowed_mask = ~priv->sta_asleep_mask;
+	tx_allowed_mask |= BIT(CW1200_LINK_ID_UAPSD);
+	if (priv->sta_asleep_mask) {
+		tx_allowed_mask |= priv->pspoll_mask;
+		tx_allowed_mask &= ~BIT(CW1200_LINK_ID_AFTER_DTIM);
+	} else {
+		tx_allowed_mask |= BIT(CW1200_LINK_ID_AFTER_DTIM);
+	}
+	idx = cw1200_get_prio_queue(priv,
+			tx_allowed_mask, &total);
+	if (idx < 0)
+		return -ENOENT;
+
+found:
+	*queue_p = &priv->tx_queue[idx];
+	*tx_allowed_mask_p = tx_allowed_mask;
+	return 0;
+}
+
+int wsm_get_tx(struct cw1200_common *priv, u8 **data,
+	       size_t *tx_len, int *burst)
+{
+	struct wsm_tx *wsm = NULL;
+	struct ieee80211_tx_info *tx_info;
+	struct cw1200_queue *queue = NULL;
+	int queue_num;
+	u32 tx_allowed_mask = 0;
+	const struct cw1200_txpriv *txpriv = NULL;
+	int count = 0;
+
+	/* More is used only for broadcasts. */
+	bool more = false;
+
+#ifdef CONFIG_CW1200_ITP
+	count = cw1200_itp_get_tx(priv, data, tx_len, burst);
+	if (count)
+		return count;
+#endif
+
+	if (priv->wsm_cmd.ptr) { /* CMD request */
+		++count;
+		spin_lock(&priv->wsm_cmd.lock);
+		BUG_ON(!priv->wsm_cmd.ptr);
+		*data = priv->wsm_cmd.ptr;
+		*tx_len = priv->wsm_cmd.len;
+		*burst = 1;
+		spin_unlock(&priv->wsm_cmd.lock);
+	} else {
+		for (;;) {
+			int ret;
+
+			if (atomic_add_return(0, &priv->tx_lock))
+				break;
+
+			spin_lock_bh(&priv->ps_state_lock);
+
+			ret = wsm_get_tx_queue_and_mask(priv, &queue,
+							&tx_allowed_mask, &more);
+			queue_num = queue - priv->tx_queue;
+
+			if (priv->buffered_multicasts &&
+			    (ret || !more) &&
+			    (priv->tx_multicast || !priv->sta_asleep_mask)) {
+				priv->buffered_multicasts = false;
+				if (priv->tx_multicast) {
+					priv->tx_multicast = false;
+					queue_work(priv->workqueue,
+						   &priv->multicast_stop_work);
+				}
+			}
+
+			spin_unlock_bh(&priv->ps_state_lock);
+
+			if (ret)
+				break;
+
+			if (cw1200_queue_get(queue,
+					     tx_allowed_mask,
+					     &wsm, &tx_info, &txpriv))
+				continue;
+
+			if (wsm_handle_tx_data(priv, wsm,
+					       tx_info, txpriv, queue))
+				continue;  /* Handled by WSM */
+
+			wsm->hdr.id &= __cpu_to_le16(
+				~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX));
+			wsm->hdr.id |= cpu_to_le16(
+				WSM_TX_LINK_ID(txpriv->raw_link_id));
+			priv->pspoll_mask &= ~BIT(txpriv->raw_link_id);
+
+			*data = (u8 *)wsm;
+			*tx_len = __le16_to_cpu(wsm->hdr.len);
+
+			/* allow bursting if txop is set */
+			if (priv->edca.params[queue_num].txop_limit)
+				*burst = min(*burst,
+					     (int)cw1200_queue_get_num_queued(queue, tx_allowed_mask) + 1);
+			else
+				*burst = 1;
+
+			/* store index of bursting queue */
+			if (*burst > 1)
+				priv->tx_burst_idx = queue_num;
+			else
+				priv->tx_burst_idx = -1;
+
+			if (more) {
+				struct ieee80211_hdr *hdr =
+					(struct ieee80211_hdr *)
+					&((u8 *)wsm)[txpriv->offset];
+				/* more buffered multicast/broadcast frames
+				 *  ==> set MoreData flag in IEEE 802.11 header
+				 *  to inform PS STAs
+				 */
+				hdr->frame_control |=
+					cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+			}
+
+			pr_debug("[WSM] >>> 0x%.4X (%zu) %p %c\n",
+				 0x0004, *tx_len, *data,
+				 wsm->more ? 'M' : ' ');
+			++count;
+			break;
+		}
+	}
+
+	return count;
+}
+
+void wsm_txed(struct cw1200_common *priv, u8 *data)
+{
+	if (data == priv->wsm_cmd.ptr) {
+		spin_lock(&priv->wsm_cmd.lock);
+		priv->wsm_cmd.ptr = NULL;
+		spin_unlock(&priv->wsm_cmd.lock);
+	}
+}
+
+/* ******************************************************************** */
+/* WSM buffer								*/
+
+void wsm_buf_init(struct wsm_buf *buf)
+{
+	BUG_ON(buf->begin);
+	buf->begin = kmalloc(FWLOAD_BLOCK_SIZE, GFP_KERNEL | GFP_DMA);
+	buf->end = buf->begin ? &buf->begin[FWLOAD_BLOCK_SIZE] : buf->begin;
+	wsm_buf_reset(buf);
+}
+
+void wsm_buf_deinit(struct wsm_buf *buf)
+{
+	kfree(buf->begin);
+	buf->begin = buf->data = buf->end = NULL;
+}
+
+static void wsm_buf_reset(struct wsm_buf *buf)
+{
+	if (buf->begin) {
+		buf->data = &buf->begin[4];
+		*(u32 *)buf->begin = 0;
+	} else {
+		buf->data = buf->begin;
+	}
+}
+
+static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size)
+{
+	size_t pos = buf->data - buf->begin;
+	size_t size = pos + extra_size;
+
+	size = round_up(size, FWLOAD_BLOCK_SIZE);
+
+	buf->begin = krealloc(buf->begin, size, GFP_KERNEL | GFP_DMA);
+	if (buf->begin) {
+		buf->data = &buf->begin[pos];
+		buf->end = &buf->begin[size];
+		return 0;
+	} else {
+		buf->end = buf->data = buf->begin;
+		return -ENOMEM;
+	}
+}
diff --git a/drivers/net/wireless/cw1200/wsm.h b/drivers/net/wireless/cw1200/wsm.h
new file mode 100644
index 0000000..8d902d6
--- /dev/null
+++ b/drivers/net/wireless/cw1200/wsm.h
@@ -0,0 +1,1879 @@
+/*
+ * WSM host interface (HI) interface for ST-Ericsson CW1200 mac80211 drivers
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * Based on CW1200 UMAC WSM API, which is
+ * Copyright (C) ST-Ericsson SA 2010
+ * Author: Stewart Mathers <stewart.mathers@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_WSM_H_INCLUDED
+#define CW1200_WSM_H_INCLUDED
+
+#include <linux/spinlock.h>
+
+struct cw1200_common;
+
+/* Bands */
+/* Radio band 2.412 -2.484 GHz. */
+#define WSM_PHY_BAND_2_4G		(0)
+
+/* Radio band 4.9375-5.8250 GHz. */
+#define WSM_PHY_BAND_5G			(1)
+
+/* Transmit rates */
+/* 1   Mbps            ERP-DSSS */
+#define WSM_TRANSMIT_RATE_1		(0)
+
+/* 2   Mbps            ERP-DSSS */
+#define WSM_TRANSMIT_RATE_2		(1)
+
+/* 5.5 Mbps            ERP-CCK */
+#define WSM_TRANSMIT_RATE_5		(2)
+
+/* 11  Mbps            ERP-CCK */
+#define WSM_TRANSMIT_RATE_11		(3)
+
+/* 22  Mbps            ERP-PBCC (Not supported) */
+/* #define WSM_TRANSMIT_RATE_22		(4) */
+
+/* 33  Mbps            ERP-PBCC (Not supported) */
+/* #define WSM_TRANSMIT_RATE_33		(5) */
+
+/* 6   Mbps   (3 Mbps) ERP-OFDM, BPSK coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_6		(6)
+
+/* 9   Mbps (4.5 Mbps) ERP-OFDM, BPSK coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_9		(7)
+
+/* 12  Mbps  (6 Mbps)  ERP-OFDM, QPSK coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_12		(8)
+
+/* 18  Mbps  (9 Mbps)  ERP-OFDM, QPSK coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_18		(9)
+
+/* 24  Mbps (12 Mbps)  ERP-OFDM, 16QAM coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_24		(10)
+
+/* 36  Mbps (18 Mbps)  ERP-OFDM, 16QAM coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_36		(11)
+
+/* 48  Mbps (24 Mbps)  ERP-OFDM, 64QAM coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_48		(12)
+
+/* 54  Mbps (27 Mbps)  ERP-OFDM, 64QAM coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_54		(13)
+
+/* 6.5 Mbps            HT-OFDM, BPSK coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_HT_6		(14)
+
+/* 13  Mbps            HT-OFDM, QPSK coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_HT_13		(15)
+
+/* 19.5 Mbps           HT-OFDM, QPSK coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_HT_19		(16)
+
+/* 26  Mbps            HT-OFDM, 16QAM coding rate 1/2 */
+#define WSM_TRANSMIT_RATE_HT_26		(17)
+
+/* 39  Mbps            HT-OFDM, 16QAM coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_HT_39		(18)
+
+/* 52  Mbps            HT-OFDM, 64QAM coding rate 2/3 */
+#define WSM_TRANSMIT_RATE_HT_52		(19)
+
+/* 58.5 Mbps           HT-OFDM, 64QAM coding rate 3/4 */
+#define WSM_TRANSMIT_RATE_HT_58		(20)
+
+/* 65  Mbps            HT-OFDM, 64QAM coding rate 5/6 */
+#define WSM_TRANSMIT_RATE_HT_65		(21)
+
+/* Scan types */
+/* Foreground scan */
+#define WSM_SCAN_TYPE_FOREGROUND	(0)
+
+/* Background scan */
+#define WSM_SCAN_TYPE_BACKGROUND	(1)
+
+/* Auto scan */
+#define WSM_SCAN_TYPE_AUTO		(2)
+
+/* Scan flags */
+/* Forced background scan means if the station cannot */
+/* enter the power-save mode, it shall force to perform a */
+/* background scan. Only valid when ScanType is */
+/* background scan. */
+#define WSM_SCAN_FLAG_FORCE_BACKGROUND	(BIT(0))
+
+/* The WLAN device scans one channel at a time so */
+/* that disturbance to the data traffic is minimized. */
+#define WSM_SCAN_FLAG_SPLIT_METHOD	(BIT(1))
+
+/* Preamble Type. Long if not set. */
+#define WSM_SCAN_FLAG_SHORT_PREAMBLE	(BIT(2))
+
+/* 11n Tx Mode. Mixed if not set. */
+#define WSM_SCAN_FLAG_11N_GREENFIELD	(BIT(3))
+
+/* Scan constraints */
+/* Maximum number of channels to be scanned. */
+#define WSM_SCAN_MAX_NUM_OF_CHANNELS	(48)
+
+/* The maximum number of SSIDs that the device can scan for. */
+#define WSM_SCAN_MAX_NUM_OF_SSIDS	(2)
+
+/* Power management modes */
+/* 802.11 Active mode */
+#define WSM_PSM_ACTIVE			(0)
+
+/* 802.11 PS mode */
+#define WSM_PSM_PS			BIT(0)
+
+/* Fast Power Save bit */
+#define WSM_PSM_FAST_PS_FLAG		BIT(7)
+
+/* Dynamic aka Fast power save */
+#define WSM_PSM_FAST_PS			(BIT(0) | BIT(7))
+
+/* Undetermined */
+/* Note : Undetermined status is reported when the */
+/* NULL data frame used to advertise the PM mode to */
+/* the AP at Pre or Post Background Scan is not Acknowledged */
+#define WSM_PSM_UNKNOWN			BIT(1)
+
+/* Queue IDs */
+/* best effort/legacy */
+#define WSM_QUEUE_BEST_EFFORT		(0)
+
+/* background */
+#define WSM_QUEUE_BACKGROUND		(1)
+
+/* video */
+#define WSM_QUEUE_VIDEO			(2)
+
+/* voice */
+#define WSM_QUEUE_VOICE			(3)
+
+/* HT TX parameters */
+/* Non-HT */
+#define WSM_HT_TX_NON_HT		(0)
+
+/* Mixed format */
+#define WSM_HT_TX_MIXED			(1)
+
+/* Greenfield format */
+#define WSM_HT_TX_GREENFIELD		(2)
+
+/* STBC allowed */
+#define WSM_HT_TX_STBC			(BIT(7))
+
+/* EPTA prioirty flags for BT Coex */
+/* default epta priority */
+#define WSM_EPTA_PRIORITY_DEFAULT	4
+/* use for normal data */
+#define WSM_EPTA_PRIORITY_DATA		4
+/* use for connect/disconnect/roaming*/
+#define WSM_EPTA_PRIORITY_MGT		5
+/* use for action frames */
+#define WSM_EPTA_PRIORITY_ACTION	5
+/* use for AC_VI data */
+#define WSM_EPTA_PRIORITY_VIDEO		5
+/* use for AC_VO data */
+#define WSM_EPTA_PRIORITY_VOICE		6
+/* use for EAPOL exchange */
+#define WSM_EPTA_PRIORITY_EAPOL		7
+
+/* TX status */
+/* Frame was sent aggregated */
+/* Only valid for WSM_SUCCESS status. */
+#define WSM_TX_STATUS_AGGREGATION	(BIT(0))
+
+/* Host should requeue this frame later. */
+/* Valid only when status is WSM_REQUEUE. */
+#define WSM_TX_STATUS_REQUEUE		(BIT(1))
+
+/* Normal Ack */
+#define WSM_TX_STATUS_NORMAL_ACK	(0<<2)
+
+/* No Ack */
+#define WSM_TX_STATUS_NO_ACK		(1<<2)
+
+/* No explicit acknowledgement */
+#define WSM_TX_STATUS_NO_EXPLICIT_ACK	(2<<2)
+
+/* Block Ack */
+/* Only valid for WSM_SUCCESS status. */
+#define WSM_TX_STATUS_BLOCK_ACK		(3<<2)
+
+/* RX status */
+/* Unencrypted */
+#define WSM_RX_STATUS_UNENCRYPTED	(0<<0)
+
+/* WEP */
+#define WSM_RX_STATUS_WEP		(1<<0)
+
+/* TKIP */
+#define WSM_RX_STATUS_TKIP		(2<<0)
+
+/* AES */
+#define WSM_RX_STATUS_AES		(3<<0)
+
+/* WAPI */
+#define WSM_RX_STATUS_WAPI		(4<<0)
+
+/* Macro to fetch encryption subfield. */
+#define WSM_RX_STATUS_ENCRYPTION(status) ((status) & 0x07)
+
+/* Frame was part of an aggregation */
+#define WSM_RX_STATUS_AGGREGATE		(BIT(3))
+
+/* Frame was first in the aggregation */
+#define WSM_RX_STATUS_AGGREGATE_FIRST	(BIT(4))
+
+/* Frame was last in the aggregation */
+#define WSM_RX_STATUS_AGGREGATE_LAST	(BIT(5))
+
+/* Indicates a defragmented frame */
+#define WSM_RX_STATUS_DEFRAGMENTED	(BIT(6))
+
+/* Indicates a Beacon frame */
+#define WSM_RX_STATUS_BEACON		(BIT(7))
+
+/* Indicates STA bit beacon TIM field */
+#define WSM_RX_STATUS_TIM		(BIT(8))
+
+/* Indicates Beacon frame's virtual bitmap contains multicast bit */
+#define WSM_RX_STATUS_MULTICAST		(BIT(9))
+
+/* Indicates frame contains a matching SSID */
+#define WSM_RX_STATUS_MATCHING_SSID	(BIT(10))
+
+/* Indicates frame contains a matching BSSI */
+#define WSM_RX_STATUS_MATCHING_BSSI	(BIT(11))
+
+/* Indicates More bit set in Framectl field */
+#define WSM_RX_STATUS_MORE_DATA		(BIT(12))
+
+/* Indicates frame received during a measurement process */
+#define WSM_RX_STATUS_MEASUREMENT	(BIT(13))
+
+/* Indicates frame received as an HT packet */
+#define WSM_RX_STATUS_HT		(BIT(14))
+
+/* Indicates frame received with STBC */
+#define WSM_RX_STATUS_STBC		(BIT(15))
+
+/* Indicates Address 1 field matches dot11StationId */
+#define WSM_RX_STATUS_ADDRESS1		(BIT(16))
+
+/* Indicates Group address present in the Address 1 field */
+#define WSM_RX_STATUS_GROUP		(BIT(17))
+
+/* Indicates Broadcast address present in the Address 1 field */
+#define WSM_RX_STATUS_BROADCAST		(BIT(18))
+
+/* Indicates group key used with encrypted frames */
+#define WSM_RX_STATUS_GROUP_KEY		(BIT(19))
+
+/* Macro to fetch encryption key index. */
+#define WSM_RX_STATUS_KEY_IDX(status)	(((status >> 20)) & 0x0F)
+
+/* Indicates TSF inclusion after 802.11 frame body */
+#define WSM_RX_STATUS_TSF_INCLUDED	(BIT(24))
+
+/* Frame Control field starts at Frame offset + 2 */
+#define WSM_TX_2BYTES_SHIFT		(BIT(7))
+
+/* Join mode */
+/* IBSS */
+#define WSM_JOIN_MODE_IBSS		(0)
+
+/* BSS */
+#define WSM_JOIN_MODE_BSS		(1)
+
+/* PLCP preamble type */
+/* For long preamble */
+#define WSM_JOIN_PREAMBLE_LONG		(0)
+
+/* For short preamble (Long for 1Mbps) */
+#define WSM_JOIN_PREAMBLE_SHORT		(1)
+
+/* For short preamble (Long for 1 and 2Mbps) */
+#define WSM_JOIN_PREAMBLE_SHORT_2	(2)
+
+/* Join flags */
+/* Unsynchronized */
+#define WSM_JOIN_FLAGS_UNSYNCRONIZED	BIT(0)
+/* The BSS owner is a P2P GO */
+#define WSM_JOIN_FLAGS_P2P_GO		BIT(1)
+/* Force to join BSS with the BSSID and the
+ * SSID specified without waiting for beacons. The
+ * ProbeForJoin parameter is ignored. */
+#define WSM_JOIN_FLAGS_FORCE		BIT(2)
+/* Give probe request/response higher
+ * priority over the BT traffic */
+#define WSM_JOIN_FLAGS_PRIO		BIT(3)
+/* Issue immediate join confirmation and use
+ * join complete to notify about completion */
+#define WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND BIT(5)
+
+/* Key types */
+#define WSM_KEY_TYPE_WEP_DEFAULT	(0)
+#define WSM_KEY_TYPE_WEP_PAIRWISE	(1)
+#define WSM_KEY_TYPE_TKIP_GROUP		(2)
+#define WSM_KEY_TYPE_TKIP_PAIRWISE	(3)
+#define WSM_KEY_TYPE_AES_GROUP		(4)
+#define WSM_KEY_TYPE_AES_PAIRWISE	(5)
+#define WSM_KEY_TYPE_WAPI_GROUP		(6)
+#define WSM_KEY_TYPE_WAPI_PAIRWISE	(7)
+
+/* Key indexes */
+#define WSM_KEY_MAX_INDEX		(10)
+
+/* ACK policy */
+#define WSM_ACK_POLICY_NORMAL		(0)
+#define WSM_ACK_POLICY_NO_ACK		(1)
+
+/* Start modes */
+#define WSM_START_MODE_AP		(0)	/* Mini AP */
+#define WSM_START_MODE_P2P_GO		(1)	/* P2P GO */
+#define WSM_START_MODE_P2P_DEV		(2)	/* P2P device */
+
+/* SetAssociationMode MIB flags */
+#define WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE		(BIT(0))
+#define WSM_ASSOCIATION_MODE_USE_HT_MODE		(BIT(1))
+#define WSM_ASSOCIATION_MODE_USE_BASIC_RATE_SET		(BIT(2))
+#define WSM_ASSOCIATION_MODE_USE_MPDU_START_SPACING	(BIT(3))
+#define WSM_ASSOCIATION_MODE_SNOOP_ASSOC_FRAMES		(BIT(4))
+
+/* RcpiRssiThreshold MIB flags */
+#define WSM_RCPI_RSSI_THRESHOLD_ENABLE	(BIT(0))
+#define WSM_RCPI_RSSI_USE_RSSI		(BIT(1))
+#define WSM_RCPI_RSSI_DONT_USE_UPPER	(BIT(2))
+#define WSM_RCPI_RSSI_DONT_USE_LOWER	(BIT(3))
+
+/* Update-ie constants */
+#define WSM_UPDATE_IE_BEACON		(BIT(0))
+#define WSM_UPDATE_IE_PROBE_RESP	(BIT(1))
+#define WSM_UPDATE_IE_PROBE_REQ		(BIT(2))
+
+/* WSM events */
+/* Error */
+#define WSM_EVENT_ERROR			(0)
+
+/* BSS lost */
+#define WSM_EVENT_BSS_LOST		(1)
+
+/* BSS regained */
+#define WSM_EVENT_BSS_REGAINED		(2)
+
+/* Radar detected */
+#define WSM_EVENT_RADAR_DETECTED	(3)
+
+/* RCPI or RSSI threshold triggered */
+#define WSM_EVENT_RCPI_RSSI		(4)
+
+/* BT inactive */
+#define WSM_EVENT_BT_INACTIVE		(5)
+
+/* BT active */
+#define WSM_EVENT_BT_ACTIVE		(6)
+
+/* MIB IDs */
+/* 4.1  dot11StationId */
+#define WSM_MIB_ID_DOT11_STATION_ID		0x0000
+
+/* 4.2  dot11MaxtransmitMsduLifeTime */
+#define WSM_MIB_ID_DOT11_MAX_TRANSMIT_LIFTIME	0x0001
+
+/* 4.3  dot11MaxReceiveLifeTime */
+#define WSM_MIB_ID_DOT11_MAX_RECEIVE_LIFETIME	0x0002
+
+/* 4.4  dot11SlotTime */
+#define WSM_MIB_ID_DOT11_SLOT_TIME		0x0003
+
+/* 4.5  dot11GroupAddressesTable */
+#define WSM_MIB_ID_DOT11_GROUP_ADDRESSES_TABLE	0x0004
+#define WSM_MAX_GRP_ADDRTABLE_ENTRIES		8
+
+/* 4.6  dot11WepDefaultKeyId */
+#define WSM_MIB_ID_DOT11_WEP_DEFAULT_KEY_ID	0x0005
+
+/* 4.7  dot11CurrentTxPowerLevel */
+#define WSM_MIB_ID_DOT11_CURRENT_TX_POWER_LEVEL	0x0006
+
+/* 4.8  dot11RTSThreshold */
+#define WSM_MIB_ID_DOT11_RTS_THRESHOLD		0x0007
+
+/* 4.9  NonErpProtection */
+#define WSM_MIB_ID_NON_ERP_PROTECTION		0x1000
+
+/* 4.10 ArpIpAddressesTable */
+#define WSM_MIB_ID_ARP_IP_ADDRESSES_TABLE	0x1001
+#define WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES	1
+
+/* 4.11 TemplateFrame */
+#define WSM_MIB_ID_TEMPLATE_FRAME		0x1002
+
+/* 4.12 RxFilter */
+#define WSM_MIB_ID_RX_FILTER			0x1003
+
+/* 4.13 BeaconFilterTable */
+#define WSM_MIB_ID_BEACON_FILTER_TABLE		0x1004
+
+/* 4.14 BeaconFilterEnable */
+#define WSM_MIB_ID_BEACON_FILTER_ENABLE		0x1005
+
+/* 4.15 OperationalPowerMode */
+#define WSM_MIB_ID_OPERATIONAL_POWER_MODE	0x1006
+
+/* 4.16 BeaconWakeUpPeriod */
+#define WSM_MIB_ID_BEACON_WAKEUP_PERIOD		0x1007
+
+/* 4.17 RcpiRssiThreshold */
+#define WSM_MIB_ID_RCPI_RSSI_THRESHOLD		0x1009
+
+/* 4.18 StatisticsTable */
+#define WSM_MIB_ID_STATISTICS_TABLE		0x100A
+
+/* 4.19 IbssPsConfig */
+#define WSM_MIB_ID_IBSS_PS_CONFIG		0x100B
+
+/* 4.20 CountersTable */
+#define WSM_MIB_ID_COUNTERS_TABLE		0x100C
+
+/* 4.21 BlockAckPolicy */
+#define WSM_MIB_ID_BLOCK_ACK_POLICY		0x100E
+
+/* 4.22 OverrideInternalTxRate */
+#define WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE	0x100F
+
+/* 4.23 SetAssociationMode */
+#define WSM_MIB_ID_SET_ASSOCIATION_MODE		0x1010
+
+/* 4.24 UpdateEptaConfigData */
+#define WSM_MIB_ID_UPDATE_EPTA_CONFIG_DATA	0x1011
+
+/* 4.25 SelectCcaMethod */
+#define WSM_MIB_ID_SELECT_CCA_METHOD		0x1012
+
+/* 4.26 SetUpasdInformation */
+#define WSM_MIB_ID_SET_UAPSD_INFORMATION	0x1013
+
+/* 4.27 SetAutoCalibrationMode  WBF00004073 */
+#define WSM_MIB_ID_SET_AUTO_CALIBRATION_MODE	0x1015
+
+/* 4.28 SetTxRateRetryPolicy */
+#define WSM_MIB_ID_SET_TX_RATE_RETRY_POLICY	0x1016
+
+/* 4.29 SetHostMessageTypeFilter */
+#define WSM_MIB_ID_SET_HOST_MSG_TYPE_FILTER	0x1017
+
+/* 4.30 P2PFindInfo */
+#define WSM_MIB_ID_P2P_FIND_INFO		0x1018
+
+/* 4.31 P2PPsModeInfo */
+#define WSM_MIB_ID_P2P_PS_MODE_INFO		0x1019
+
+/* 4.32 SetEtherTypeDataFrameFilter */
+#define WSM_MIB_ID_SET_ETHERTYPE_DATAFRAME_FILTER 0x101A
+
+/* 4.33 SetUDPPortDataFrameFilter */
+#define WSM_MIB_ID_SET_UDPPORT_DATAFRAME_FILTER	0x101B
+
+/* 4.34 SetMagicDataFrameFilter */
+#define WSM_MIB_ID_SET_MAGIC_DATAFRAME_FILTER	0x101C
+
+/* 4.35 P2PDeviceInfo */
+#define WSM_MIB_ID_P2P_DEVICE_INFO		0x101D
+
+/* 4.36 SetWCDMABand */
+#define WSM_MIB_ID_SET_WCDMA_BAND		0x101E
+
+/* 4.37 GroupTxSequenceCounter */
+#define WSM_MIB_ID_GRP_SEQ_COUNTER		0x101F
+
+/* 4.38 ProtectedMgmtPolicy */
+#define WSM_MIB_ID_PROTECTED_MGMT_POLICY	0x1020
+
+/* 4.39 SetHtProtection */
+#define WSM_MIB_ID_SET_HT_PROTECTION		0x1021
+
+/* 4.40 GPIO Command */
+#define WSM_MIB_ID_GPIO_COMMAND			0x1022
+
+/* 4.41 TSF Counter Value */
+#define WSM_MIB_ID_TSF_COUNTER			0x1023
+
+/* Test Purposes Only */
+#define WSM_MIB_ID_BLOCK_ACK_INFO		0x100D
+
+/* 4.42 UseMultiTxConfMessage */
+#define WSM_MIB_USE_MULTI_TX_CONF		0x1024
+
+/* 4.43 Keep-alive period */
+#define WSM_MIB_ID_KEEP_ALIVE_PERIOD		0x1025
+
+/* 4.44 Disable BSSID filter */
+#define WSM_MIB_ID_DISABLE_BSSID_FILTER		0x1026
+
+/* Frame template types */
+#define WSM_FRAME_TYPE_PROBE_REQUEST	(0)
+#define WSM_FRAME_TYPE_BEACON		(1)
+#define WSM_FRAME_TYPE_NULL		(2)
+#define WSM_FRAME_TYPE_QOS_NULL		(3)
+#define WSM_FRAME_TYPE_PS_POLL		(4)
+#define WSM_FRAME_TYPE_PROBE_RESPONSE	(5)
+
+#define WSM_FRAME_GREENFIELD		(0x80)	/* See 4.11 */
+
+/* Status */
+/* The WSM firmware has completed a request */
+/* successfully. */
+#define WSM_STATUS_SUCCESS              (0)
+
+/* This is a generic failure code if other error codes do */
+/* not apply. */
+#define WSM_STATUS_FAILURE              (1)
+
+/* A request contains one or more invalid parameters. */
+#define WSM_INVALID_PARAMETER           (2)
+
+/* The request cannot perform because the device is in */
+/* an inappropriate mode. */
+#define WSM_ACCESS_DENIED               (3)
+
+/* The frame received includes a decryption error. */
+#define WSM_STATUS_DECRYPTFAILURE       (4)
+
+/* A MIC failure is detected in the received packets. */
+#define WSM_STATUS_MICFAILURE           (5)
+
+/* The transmit request failed due to retry limit being */
+/* exceeded. */
+#define WSM_STATUS_RETRY_EXCEEDED       (6)
+
+/* The transmit request failed due to MSDU life time */
+/* being exceeded. */
+#define WSM_STATUS_TX_LIFETIME_EXCEEDED (7)
+
+/* The link to the AP is lost. */
+#define WSM_STATUS_LINK_LOST            (8)
+
+/* No key was found for the encrypted frame */
+#define WSM_STATUS_NO_KEY_FOUND         (9)
+
+/* Jammer was detected when transmitting this frame */
+#define WSM_STATUS_JAMMER_DETECTED      (10)
+
+/* The message should be requeued later. */
+/* This is applicable only to Transmit */
+#define WSM_REQUEUE                     (11)
+
+/* Advanced filtering options */
+#define WSM_MAX_FILTER_ELEMENTS		(4)
+
+#define WSM_FILTER_ACTION_IGNORE	(0)
+#define WSM_FILTER_ACTION_FILTER_IN	(1)
+#define WSM_FILTER_ACTION_FILTER_OUT	(2)
+
+#define WSM_FILTER_PORT_TYPE_DST	(0)
+#define WSM_FILTER_PORT_TYPE_SRC	(1)
+
+/* Actual header of WSM messages */
+struct wsm_hdr {
+	__le16 len;
+	__le16 id;
+};
+
+#define WSM_TX_SEQ_MAX			(7)
+#define WSM_TX_SEQ(seq)			\
+		((seq & WSM_TX_SEQ_MAX) << 13)
+#define WSM_TX_LINK_ID_MAX		(0x0F)
+#define WSM_TX_LINK_ID(link_id)		\
+		((link_id & WSM_TX_LINK_ID_MAX) << 6)
+
+#define MAX_BEACON_SKIP_TIME_MS 1000
+
+#define WSM_CMD_LAST_CHANCE_TIMEOUT (HZ * 3 / 2)
+
+/* ******************************************************************** */
+/* WSM capability							*/
+
+#define WSM_STARTUP_IND_ID 0x0801
+
+struct wsm_startup_ind {
+	u16 input_buffers;
+	u16 input_buffer_size;
+	u16 status;
+	u16 hw_id;
+	u16 hw_subid;
+	u16 fw_cap;
+	u16 fw_type;
+	u16 fw_api;
+	u16 fw_build;
+	u16 fw_ver;
+	char fw_label[128];
+	u32 config[4];
+};
+
+/* ******************************************************************** */
+/* WSM commands								*/
+
+/* 3.1 */
+#define WSM_CONFIGURATION_REQ_ID 0x0009
+#define WSM_CONFIGURATION_RESP_ID 0x0409
+
+struct wsm_tx_power_range {
+	int min_power_level;
+	int max_power_level;
+	u32 stepping;
+};
+
+struct wsm_configuration {
+	/* [in] */ u32 dot11MaxTransmitMsduLifeTime;
+	/* [in] */ u32 dot11MaxReceiveLifeTime;
+	/* [in] */ u32 dot11RtsThreshold;
+	/* [in, out] */ u8 *dot11StationId;
+	/* [in] */ const void *dpdData;
+	/* [in] */ size_t dpdData_size;
+	/* [out] */ u8 dot11FrequencyBandsSupported;
+	/* [out] */ u32 supportedRateMask;
+	/* [out] */ struct wsm_tx_power_range txPowerRange[2];
+};
+
+int wsm_configuration(struct cw1200_common *priv,
+		      struct wsm_configuration *arg);
+
+/* 3.3 */
+#define WSM_RESET_REQ_ID 0x000A
+#define WSM_RESET_RESP_ID 0x040A
+struct wsm_reset {
+	/* [in] */ int link_id;
+	/* [in] */ bool reset_statistics;
+};
+
+int wsm_reset(struct cw1200_common *priv, const struct wsm_reset *arg);
+
+/* 3.5 */
+#define WSM_READ_MIB_REQ_ID 0x0005
+#define WSM_READ_MIB_RESP_ID 0x0405
+int wsm_read_mib(struct cw1200_common *priv, u16 mib_id, void *buf,
+		 size_t buf_size);
+
+/* 3.7 */
+#define WSM_WRITE_MIB_REQ_ID 0x0006
+#define WSM_WRITE_MIB_RESP_ID 0x0406
+int wsm_write_mib(struct cw1200_common *priv, u16 mib_id, void *buf,
+		  size_t buf_size);
+
+/* 3.9 */
+#define WSM_START_SCAN_REQ_ID 0x0007
+#define WSM_START_SCAN_RESP_ID 0x0407
+
+struct wsm_ssid {
+	u8 ssid[32];
+	u32 length;
+};
+
+struct wsm_scan_ch {
+	u16 number;
+	u32 min_chan_time;
+	u32 max_chan_time;
+	u32 tx_power_level;
+};
+
+struct wsm_scan {
+	/* WSM_PHY_BAND_... */
+	u8 band;
+
+	/* WSM_SCAN_TYPE_... */
+	u8 type;
+
+	/* WSM_SCAN_FLAG_... */
+	u8 flags;
+
+	/* WSM_TRANSMIT_RATE_... */
+	u8 max_tx_rate;
+
+	/* Interval period in TUs that the device shall the re- */
+	/* execute the requested scan. Max value supported by the device */
+	/* is 256s. */
+	u32 auto_scan_interval;
+
+	/* Number of probe requests (per SSID) sent to one (1) */
+	/* channel. Zero (0) means that none is send, which */
+	/* means that a passive scan is to be done. Value */
+	/* greater than zero (0) means that an active scan is to */
+	/* be done. */
+	u32 num_probes;
+
+	/* Number of channels to be scanned. */
+	/* Maximum value is WSM_SCAN_MAX_NUM_OF_CHANNELS. */
+	u8 num_channels;
+
+	/* Number of SSID provided in the scan command (this */
+	/* is zero (0) in broadcast scan) */
+	/* The maximum number of SSIDs is WSM_SCAN_MAX_NUM_OF_SSIDS. */
+	u8 num_ssids;
+
+	/* The delay time (in microseconds) period */
+	/* before sending a probe-request. */
+	u8 probe_delay;
+
+	/* SSIDs to be scanned [numOfSSIDs]; */
+	struct wsm_ssid *ssids;
+
+	/* Channels to be scanned [numOfChannels]; */
+	struct wsm_scan_ch *ch;
+};
+
+int wsm_scan(struct cw1200_common *priv, const struct wsm_scan *arg);
+
+/* 3.11 */
+#define WSM_STOP_SCAN_REQ_ID 0x0008
+#define WSM_STOP_SCAN_RESP_ID 0x0408
+int wsm_stop_scan(struct cw1200_common *priv);
+
+/* 3.13 */
+#define WSM_SCAN_COMPLETE_IND_ID 0x0806
+struct wsm_scan_complete {
+	/* WSM_STATUS_... */
+	u32 status;
+
+	/* WSM_PSM_... */
+	u8 psm;
+
+	/* Number of channels that the scan operation completed. */
+	u8 num_channels;
+};
+
+/* 3.14 */
+#define WSM_TX_CONFIRM_IND_ID 0x0404
+#define WSM_MULTI_TX_CONFIRM_ID 0x041E
+
+struct wsm_tx_confirm {
+	/* Packet identifier used in wsm_tx. */
+	u32 packet_id;
+
+	/* WSM_STATUS_... */
+	u32 status;
+
+	/* WSM_TRANSMIT_RATE_... */
+	u8 tx_rate;
+
+	/* The number of times the frame was transmitted */
+	/* without receiving an acknowledgement. */
+	u8 ack_failures;
+
+	/* WSM_TX_STATUS_... */
+	u16 flags;
+
+	/* The total time in microseconds that the frame spent in */
+	/* the WLAN device before transmission as completed. */
+	u32 media_delay;
+
+	/* The total time in microseconds that the frame spent in */
+	/* the WLAN device before transmission was started. */
+	u32 tx_queue_delay;
+};
+
+/* 3.15 */
+typedef void (*wsm_tx_confirm_cb) (struct cw1200_common *priv,
+				   struct wsm_tx_confirm *arg);
+
+/* Note that ideology of wsm_tx struct is different against the rest of
+ * WSM API. wsm_hdr is /not/ a caller-adapted struct to be used as an input
+ * argument for WSM call, but a prepared bytestream to be sent to firmware.
+ * It is filled partly in cw1200_tx, partly in low-level WSM code.
+ * Please pay attention once again: ideology is different.
+ *
+ * Legend:
+ * - [in]: cw1200_tx must fill this field.
+ * - [wsm]: the field is filled by low-level WSM.
+ */
+struct wsm_tx {
+	/* common WSM header */
+	struct wsm_hdr hdr;
+
+	/* Packet identifier that meant to be used in completion. */
+	__le32 packet_id;
+
+	/* WSM_TRANSMIT_RATE_... */
+	u8 max_tx_rate;
+
+	/* WSM_QUEUE_... */
+	u8 queue_id;
+
+	/* True: another packet is pending on the host for transmission. */
+	u8 more;
+
+	/* Bit 0 = 0 - Start expiry time from first Tx attempt (default) */
+	/* Bit 0 = 1 - Start expiry time from receipt of Tx Request */
+	/* Bits 3:1  - PTA Priority */
+	/* Bits 6:4  - Tx Rate Retry Policy */
+	/* Bit 7 - Reserved */
+	u8 flags;
+
+	/* Should be 0. */
+	__le32 reserved;
+
+	/* The elapsed time in TUs, after the initial transmission */
+	/* of an MSDU, after which further attempts to transmit */
+	/* the MSDU shall be terminated. Overrides the global */
+	/* dot11MaxTransmitMsduLifeTime setting [optional] */
+	/* Device will set the default value if this is 0. */
+	__le32 expire_time;
+
+	/* WSM_HT_TX_... */
+	__le32 ht_tx_parameters;
+};
+
+/* = sizeof(generic hi hdr) + sizeof(wsm hdr) + sizeof(alignment) */
+#define WSM_TX_EXTRA_HEADROOM (28)
+
+/* 3.16 */
+#define WSM_RECEIVE_IND_ID 0x0804
+
+struct wsm_rx {
+	/* WSM_STATUS_... */
+	__le32 status;
+
+	/* Specifies the channel of the received packet. */
+	__le16 channel_number;
+
+	/* WSM_TRANSMIT_RATE_... */
+	u8 rx_rate;
+
+	/* This value is expressed in signed Q8.0 format for */
+	/* RSSI and unsigned Q7.1 format for RCPI. */
+	u8 rcpi_rssi;
+
+	/* WSM_RX_STATUS_... */
+	__le32 flags;
+
+	/* Payload */
+	u8 data[0];
+} __packed;
+
+/* = sizeof(generic hi hdr) + sizeof(wsm hdr) */
+#define WSM_RX_EXTRA_HEADROOM (16)
+
+typedef void (*wsm_rx_cb) (struct cw1200_common *priv, struct wsm_rx *arg,
+			   struct sk_buff **skb_p);
+
+/* 3.17 */
+struct wsm_event {
+	/* WSM_STATUS_... */
+	/* [out] */ u32 id;
+
+	/* Indication parameters. */
+	/* For error indication, this shall be a 32-bit WSM status. */
+	/* For RCPI or RSSI indication, this should be an 8-bit */
+	/* RCPI or RSSI value. */
+	/* [out] */ u32 data;
+};
+
+struct cw1200_wsm_event {
+	struct list_head link;
+	struct wsm_event evt;
+};
+
+/* 3.18 - 3.22 */
+/* Measurement. Skipped for now. Irrelevent. */
+
+typedef void (*wsm_event_cb) (struct cw1200_common *priv,
+			      struct wsm_event *arg);
+
+/* 3.23 */
+#define WSM_JOIN_REQ_ID 0x000B
+#define WSM_JOIN_RESP_ID 0x040B
+
+struct wsm_join {
+	/* WSM_JOIN_MODE_... */
+	u8 mode;
+
+	/* WSM_PHY_BAND_... */
+	u8 band;
+
+	/* Specifies the channel number to join. The channel */
+	/* number will be mapped to an actual frequency */
+	/* according to the band */
+	u16 channel_number;
+
+	/* Specifies the BSSID of the BSS or IBSS to be joined */
+	/* or the IBSS to be started. */
+	u8 bssid[6];
+
+	/* ATIM window of IBSS */
+	/* When ATIM window is zero the initiated IBSS does */
+	/* not support power saving. */
+	u16 atim_window;
+
+	/* WSM_JOIN_PREAMBLE_... */
+	u8 preamble_type;
+
+	/* Specifies if a probe request should be send with the */
+	/* specified SSID when joining to the network. */
+	u8 probe_for_join;
+
+	/* DTIM Period (In multiples of beacon interval) */
+	u8 dtim_period;
+
+	/* WSM_JOIN_FLAGS_... */
+	u8 flags;
+
+	/* Length of the SSID */
+	u32 ssid_len;
+
+	/* Specifies the SSID of the IBSS to join or start */
+	u8 ssid[32];
+
+	/* Specifies the time between TBTTs in TUs */
+	u32 beacon_interval;
+
+	/* A bit mask that defines the BSS basic rate set. */
+	u32 basic_rate_set;
+};
+
+struct wsm_join_cnf {
+	u32 status;
+
+	/* Minimum transmission power level in units of 0.1dBm */
+	u32 min_power_level;
+
+	/* Maximum transmission power level in units of 0.1dBm */
+	u32 max_power_level;
+};
+
+int wsm_join(struct cw1200_common *priv, struct wsm_join *arg);
+
+/* 3.24 */
+struct wsm_join_complete {
+	/* WSM_STATUS_... */
+	u32 status;
+};
+
+/* 3.25 */
+#define WSM_SET_PM_REQ_ID 0x0010
+#define WSM_SET_PM_RESP_ID 0x0410
+struct wsm_set_pm {
+	/* WSM_PSM_... */
+	u8 mode;
+
+	/* in unit of 500us; 0 to use default */
+	u8 fast_psm_idle_period;
+
+	/* in unit of 500us; 0 to use default */
+	u8 ap_psm_change_period;
+
+	/* in unit of 500us; 0 to disable auto-pspoll */
+	u8 min_auto_pspoll_period;
+};
+
+int wsm_set_pm(struct cw1200_common *priv, const struct wsm_set_pm *arg);
+
+/* 3.27 */
+struct wsm_set_pm_complete {
+	u8 psm;			/* WSM_PSM_... */
+};
+
+/* 3.28 */
+#define WSM_SET_BSS_PARAMS_REQ_ID 0x0011
+#define WSM_SET_BSS_PARAMS_RESP_ID 0x0411
+struct wsm_set_bss_params {
+	/* This resets the beacon loss counters only */
+	u8 reset_beacon_loss;
+
+	/* The number of lost consecutive beacons after which */
+	/* the WLAN device should indicate the BSS-Lost event */
+	/* to the WLAN host driver. */
+	u8 beacon_lost_count;
+
+	/* The AID received during the association process. */
+	u16 aid;
+
+	/* The operational rate set mask */
+	u32 operational_rate_set;
+};
+
+int wsm_set_bss_params(struct cw1200_common *priv,
+		       const struct wsm_set_bss_params *arg);
+
+/* 3.30 */
+#define WSM_ADD_KEY_REQ_ID         0x000C
+#define WSM_ADD_KEY_RESP_ID        0x040C
+struct wsm_add_key {
+	u8 type;		/* WSM_KEY_TYPE_... */
+	u8 index;		/* Key entry index: 0 -- WSM_KEY_MAX_INDEX */
+	u16 reserved;
+	union {
+		struct {
+			u8 peer[6];	/* MAC address of the
+						 * peer station */
+			u8 reserved;
+			u8 keylen;		/* Key length in bytes */
+			u8 keydata[16];		/* Key data */
+		} __packed wep_pairwise;
+		struct {
+			u8 keyid;		/* Unique per key identifier
+						 * (0..3) */
+			u8 keylen;		/* Key length in bytes */
+			u16 reserved;
+			u8 keydata[16];		/* Key data */
+		} __packed wep_group;
+		struct {
+			u8 peer[6];	/* MAC address of the
+						 * peer station */
+			u16 reserved;
+			u8 keydata[16];	/* TKIP key data */
+			u8 rx_mic_key[8];		/* Rx MIC key */
+			u8 tx_mic_key[8];		/* Tx MIC key */
+		} __packed tkip_pairwise;
+		struct {
+			u8 keydata[16];	/* TKIP key data */
+			u8 rx_mic_key[8];		/* Rx MIC key */
+			u8 keyid;		/* Key ID */
+			u8 reserved[3];
+			u8 rx_seqnum[8];	/* Receive Sequence Counter */
+		} __packed tkip_group;
+		struct {
+			u8 peer[6];	/* MAC address of the
+						 * peer station */
+			u16 reserved;
+			u8 keydata[16];	/* AES key data */
+		} __packed aes_pairwise;
+		struct {
+			u8 keydata[16];	/* AES key data */
+			u8 keyid;		/* Key ID */
+			u8 reserved[3];
+			u8 rx_seqnum[8];	/* Receive Sequence Counter */
+		} __packed aes_group;
+		struct {
+			u8 peer[6];	/* MAC address of the
+						 * peer station */
+			u8 keyid;		/* Key ID */
+			u8 reserved;
+			u8 keydata[16];	/* WAPI key data */
+			u8 mic_key[16];	/* MIC key data */
+		} __packed wapi_pairwise;
+		struct {
+			u8 keydata[16];	/* WAPI key data */
+			u8 mic_key[16];	/* MIC key data */
+			u8 keyid;		/* Key ID */
+			u8 reserved[3];
+		} __packed wapi_group;
+	} __packed;
+} __packed;
+
+int wsm_add_key(struct cw1200_common *priv, const struct wsm_add_key *arg);
+
+/* 3.32 */
+#define WSM_REMOVE_KEY_REQ_ID         0x000D
+#define WSM_REMOVE_KEY_RESP_ID        0x040D
+struct wsm_remove_key {
+	u8 index; /* Key entry index : 0-10 */
+};
+
+int wsm_remove_key(struct cw1200_common *priv,
+		   const struct wsm_remove_key *arg);
+
+/* 3.34 */
+struct wsm_set_tx_queue_params {
+	/* WSM_ACK_POLICY_... */
+	u8 ackPolicy;
+
+	/* Medium Time of TSPEC (in 32us units) allowed per */
+	/* One Second Averaging Period for this queue. */
+	u16 allowedMediumTime;
+
+	/* dot11MaxTransmitMsduLifetime to be used for the */
+	/* specified queue. */
+	u32 maxTransmitLifetime;
+};
+
+struct wsm_tx_queue_params {
+	/* NOTE: index is a linux queue id. */
+	struct wsm_set_tx_queue_params params[4];
+};
+
+
+#define WSM_TX_QUEUE_SET(queue_params, queue, ack_policy, allowed_time,\
+		max_life_time)	\
+do {							\
+	struct wsm_set_tx_queue_params *p = &(queue_params)->params[queue]; \
+	p->ackPolicy = (ack_policy);				\
+	p->allowedMediumTime = (allowed_time);				\
+	p->maxTransmitLifetime = (max_life_time);			\
+} while (0)
+
+int wsm_set_tx_queue_params(struct cw1200_common *priv,
+			    const struct wsm_set_tx_queue_params *arg, u8 id);
+
+/* 3.36 */
+#define WSM_EDCA_PARAMS_REQ_ID 0x0013
+#define WSM_EDCA_PARAMS_RESP_ID 0x0413
+struct wsm_edca_queue_params {
+	/* CWmin (in slots) for the access class. */
+	__le16 cwmin;
+
+	/* CWmax (in slots) for the access class. */
+	__le16 cwmax;
+
+	/* AIFS (in slots) for the access class. */
+	__le16 aifns;
+
+	/* TX OP Limit (in microseconds) for the access class. */
+	__le16 txop_limit;
+
+	/* dot11MaxReceiveLifetime to be used for the specified */
+	/* the access class. Overrides the global */
+	/* dot11MaxReceiveLifetime value */
+	__le32 max_rx_lifetime;
+} __packed;
+
+struct wsm_edca_params {
+	/* NOTE: index is a linux queue id. */
+	struct wsm_edca_queue_params params[4];
+	bool uapsd_enable[4];
+};
+
+#define TXOP_UNIT 32
+#define WSM_EDCA_SET(__edca, __queue, __aifs, __cw_min, __cw_max, __txop, __lifetime,\
+		     __uapsd) \
+	do {							\
+		struct wsm_edca_queue_params *p = &(__edca)->params[__queue]; \
+		p->cwmin = (__cw_min);				\
+		p->cwmax = (__cw_max);				\
+		p->aifns = (__aifs);				\
+		p->txop_limit = ((__txop) * TXOP_UNIT);		\
+		p->max_rx_lifetime = (__lifetime);		\
+		(__edca)->uapsd_enable[__queue] = (__uapsd);	\
+	} while (0)
+
+int wsm_set_edca_params(struct cw1200_common *priv,
+			const struct wsm_edca_params *arg);
+
+int wsm_set_uapsd_param(struct cw1200_common *priv,
+			const struct wsm_edca_params *arg);
+
+/* 3.38 */
+/* Set-System info. Skipped for now. Irrelevent. */
+
+/* 3.40 */
+#define WSM_SWITCH_CHANNEL_REQ_ID 0x0016
+#define WSM_SWITCH_CHANNEL_RESP_ID 0x0416
+
+struct wsm_switch_channel {
+	/* 1 - means the STA shall not transmit any further */
+	/* frames until the channel switch has completed */
+	u8 mode;
+
+	/* Number of TBTTs until channel switch occurs. */
+	/* 0 - indicates switch shall occur at any time */
+	/* 1 - occurs immediately before the next TBTT */
+	u8 switch_count;
+
+	/* The new channel number to switch to. */
+	/* Note this is defined as per section 2.7. */
+	u16 channel_number;
+};
+
+int wsm_switch_channel(struct cw1200_common *priv,
+		       const struct wsm_switch_channel *arg);
+
+typedef void (*wsm_channel_switch_cb) (struct cw1200_common *priv);
+
+#define WSM_START_REQ_ID 0x0017
+#define WSM_START_RESP_ID 0x0417
+
+struct wsm_start {
+	/* WSM_START_MODE_... */
+	/* [in] */ u8 mode;
+
+	/* WSM_PHY_BAND_... */
+	/* [in] */ u8 band;
+
+	/* Channel number */
+	/* [in] */ u16 channel_number;
+
+	/* Client Traffic window in units of TU */
+	/* Valid only when mode == ..._P2P */
+	/* [in] */ u32 ct_window;
+
+	/* Interval between two consecutive */
+	/* beacon transmissions in TU. */
+	/* [in] */ u32 beacon_interval;
+
+	/* DTIM period in terms of beacon intervals */
+	/* [in] */ u8 dtim_period;
+
+	/* WSM_JOIN_PREAMBLE_... */
+	/* [in] */ u8 preamble;
+
+	/* The delay time (in microseconds) period */
+	/* before sending a probe-request. */
+	/* [in] */ u8 probe_delay;
+
+	/* Length of the SSID */
+	/* [in] */ u8 ssid_len;
+
+	/* SSID of the BSS or P2P_GO to be started now. */
+	/* [in] */ u8 ssid[32];
+
+	/* The basic supported rates for the MiniAP. */
+	/* [in] */ u32 basic_rate_set;
+};
+
+int wsm_start(struct cw1200_common *priv, const struct wsm_start *arg);
+
+#define WSM_BEACON_TRANSMIT_REQ_ID 0x0018
+#define WSM_BEACON_TRANSMIT_RESP_ID 0x0418
+
+struct wsm_beacon_transmit {
+	/* 1: enable; 0: disable */
+	/* [in] */ u8 enable_beaconing;
+};
+
+int wsm_beacon_transmit(struct cw1200_common *priv,
+			const struct wsm_beacon_transmit *arg);
+
+int wsm_start_find(struct cw1200_common *priv);
+
+int wsm_stop_find(struct cw1200_common *priv);
+
+typedef void (*wsm_find_complete_cb) (struct cw1200_common *priv, u32 status);
+
+struct wsm_suspend_resume {
+	/* See 3.52 */
+	/* Link ID */
+	/* [out] */ int link_id;
+	/* Stop sending further Tx requests down to device for this link */
+	/* [out] */ bool stop;
+	/* Transmit multicast Frames */
+	/* [out] */ bool multicast;
+	/* The AC on which Tx to be suspended /resumed. */
+	/* This is applicable only for U-APSD */
+	/* WSM_QUEUE_... */
+	/* [out] */ int queue;
+};
+
+typedef void (*wsm_suspend_resume_cb) (struct cw1200_common *priv,
+				       struct wsm_suspend_resume *arg);
+
+/* 3.54 Update-IE request. */
+struct wsm_update_ie {
+	/* WSM_UPDATE_IE_... */
+	/* [in] */ u16 what;
+	/* [in] */ u16 count;
+	/* [in] */ u8 *ies;
+	/* [in] */ size_t length;
+};
+
+int wsm_update_ie(struct cw1200_common *priv,
+		  const struct wsm_update_ie *arg);
+
+/* 3.56 */
+struct wsm_map_link {
+	/* MAC address of the remote device */
+	/* [in] */ u8 mac_addr[6];
+	/* [in] */ u8 link_id;
+};
+
+int wsm_map_link(struct cw1200_common *priv, const struct wsm_map_link *arg);
+
+/* ******************************************************************** */
+/* MIB shortcats							*/
+
+static inline int wsm_set_output_power(struct cw1200_common *priv,
+				       int power_level)
+{
+	__le32 val = __cpu_to_le32(power_level);
+	return wsm_write_mib(priv, WSM_MIB_ID_DOT11_CURRENT_TX_POWER_LEVEL,
+			     &val, sizeof(val));
+}
+
+static inline int wsm_set_beacon_wakeup_period(struct cw1200_common *priv,
+					       unsigned dtim_interval,
+					       unsigned listen_interval)
+{
+	struct {
+		u8 numBeaconPeriods;
+		u8 reserved;
+		__le16 listenInterval;
+	} val = {
+		dtim_interval, 0, __cpu_to_le16(listen_interval)
+	};
+
+	if (dtim_interval > 0xFF || listen_interval > 0xFFFF)
+		return -EINVAL;
+	else
+		return wsm_write_mib(priv, WSM_MIB_ID_BEACON_WAKEUP_PERIOD,
+				     &val, sizeof(val));
+}
+
+struct wsm_rcpi_rssi_threshold {
+	u8 rssiRcpiMode;	/* WSM_RCPI_RSSI_... */
+	u8 lowerThreshold;
+	u8 upperThreshold;
+	u8 rollingAverageCount;
+};
+
+static inline int wsm_set_rcpi_rssi_threshold(struct cw1200_common *priv,
+					struct wsm_rcpi_rssi_threshold *arg)
+{
+	return wsm_write_mib(priv, WSM_MIB_ID_RCPI_RSSI_THRESHOLD, arg,
+			     sizeof(*arg));
+}
+
+struct wsm_mib_counters_table {
+	__le32 plcp_errors;
+	__le32 fcs_errors;
+	__le32 tx_packets;
+	__le32 rx_packets;
+	__le32 rx_packet_errors;
+	__le32 rx_decryption_failures;
+	__le32 rx_mic_failures;
+	__le32 rx_no_key_failures;
+	__le32 tx_multicast_frames;
+	__le32 tx_frames_success;
+	__le32 tx_frame_failures;
+	__le32 tx_frames_retried;
+	__le32 tx_frames_multi_retried;
+	__le32 rx_frame_duplicates;
+	__le32 rts_success;
+	__le32 rts_failures;
+	__le32 ack_failures;
+	__le32 rx_multicast_frames;
+	__le32 rx_frames_success;
+	__le32 rx_cmac_icv_errors;
+	__le32 rx_cmac_replays;
+	__le32 rx_mgmt_ccmp_replays;
+} __packed;
+
+static inline int wsm_get_counters_table(struct cw1200_common *priv,
+					 struct wsm_mib_counters_table *arg)
+{
+	return wsm_read_mib(priv, WSM_MIB_ID_COUNTERS_TABLE,
+			    arg, sizeof(*arg));
+}
+
+static inline int wsm_get_station_id(struct cw1200_common *priv, u8 *mac)
+{
+	return wsm_read_mib(priv, WSM_MIB_ID_DOT11_STATION_ID, mac, ETH_ALEN);
+}
+
+struct wsm_rx_filter {
+	bool promiscuous;
+	bool bssid;
+	bool fcs;
+	bool probeResponder;
+};
+
+static inline int wsm_set_rx_filter(struct cw1200_common *priv,
+				    const struct wsm_rx_filter *arg)
+{
+	__le32 val = 0;
+	if (arg->promiscuous)
+		val |= __cpu_to_le32(BIT(0));
+	if (arg->bssid)
+		val |= __cpu_to_le32(BIT(1));
+	if (arg->fcs)
+		val |= __cpu_to_le32(BIT(2));
+	if (arg->probeResponder)
+		val |= __cpu_to_le32(BIT(3));
+	return wsm_write_mib(priv, WSM_MIB_ID_RX_FILTER, &val, sizeof(val));
+}
+
+int wsm_set_probe_responder(struct cw1200_common *priv, bool enable);
+
+#define WSM_BEACON_FILTER_IE_HAS_CHANGED	BIT(0)
+#define WSM_BEACON_FILTER_IE_NO_LONGER_PRESENT	BIT(1)
+#define WSM_BEACON_FILTER_IE_HAS_APPEARED	BIT(2)
+
+struct wsm_beacon_filter_table_entry {
+	u8	ie_id;
+	u8	flags;
+	u8	oui[3];
+	u8	match_data[3];
+} __packed;
+
+struct wsm_mib_beacon_filter_table {
+	__le32 num;
+	struct wsm_beacon_filter_table_entry entry[10];
+} __packed;
+
+static inline int wsm_set_beacon_filter_table(struct cw1200_common *priv,
+					      struct wsm_mib_beacon_filter_table *ft)
+{
+	size_t size = __le32_to_cpu(ft->num) *
+		     sizeof(struct wsm_beacon_filter_table_entry) +
+		     sizeof(__le32);
+
+	return wsm_write_mib(priv, WSM_MIB_ID_BEACON_FILTER_TABLE, ft, size);
+}
+
+#define WSM_BEACON_FILTER_ENABLE	BIT(0) /* Enable/disable beacon filtering */
+#define WSM_BEACON_FILTER_AUTO_ERP	BIT(1) /* If 1 FW will handle ERP IE changes internally */
+
+struct wsm_beacon_filter_control {
+	int enabled;
+	int bcn_count;
+};
+
+static inline int wsm_beacon_filter_control(struct cw1200_common *priv,
+					struct wsm_beacon_filter_control *arg)
+{
+	struct {
+		__le32 enabled;
+		__le32 bcn_count;
+	} val;
+	val.enabled = __cpu_to_le32(arg->enabled);
+	val.bcn_count = __cpu_to_le32(arg->bcn_count);
+	return wsm_write_mib(priv, WSM_MIB_ID_BEACON_FILTER_ENABLE, &val,
+			     sizeof(val));
+}
+
+enum wsm_power_mode {
+	wsm_power_mode_active = 0,
+	wsm_power_mode_doze = 1,
+	wsm_power_mode_quiescent = 2,
+};
+
+struct wsm_operational_mode {
+	enum wsm_power_mode power_mode;
+	int disable_more_flag_usage;
+	int perform_ant_diversity;
+};
+
+static inline int wsm_set_operational_mode(struct cw1200_common *priv,
+					const struct wsm_operational_mode *arg)
+{
+	u8 val = arg->power_mode;
+	if (arg->disable_more_flag_usage)
+		val |= BIT(4);
+	if (arg->perform_ant_diversity)
+		val |= BIT(5);
+	return wsm_write_mib(priv, WSM_MIB_ID_OPERATIONAL_POWER_MODE, &val,
+			     sizeof(val));
+}
+
+struct wsm_template_frame {
+	u8 frame_type;
+	u8 rate;
+	struct sk_buff *skb;
+};
+
+static inline int wsm_set_template_frame(struct cw1200_common *priv,
+					 struct wsm_template_frame *arg)
+{
+	int ret;
+	u8 *p = skb_push(arg->skb, 4);
+	p[0] = arg->frame_type;
+	p[1] = arg->rate;
+	((u16 *)p)[1] = __cpu_to_le16(arg->skb->len - 4);
+	ret = wsm_write_mib(priv, WSM_MIB_ID_TEMPLATE_FRAME, p, arg->skb->len);
+	skb_pull(arg->skb, 4);
+	return ret;
+}
+
+
+struct wsm_protected_mgmt_policy {
+	bool protectedMgmtEnable;
+	bool unprotectedMgmtFramesAllowed;
+	bool encryptionForAuthFrame;
+};
+
+static inline int wsm_set_protected_mgmt_policy(struct cw1200_common *priv,
+		struct wsm_protected_mgmt_policy *arg)
+{
+	__le32 val = 0;
+	int ret;
+	if (arg->protectedMgmtEnable)
+		val |= __cpu_to_le32(BIT(0));
+	if (arg->unprotectedMgmtFramesAllowed)
+		val |= __cpu_to_le32(BIT(1));
+	if (arg->encryptionForAuthFrame)
+		val |= __cpu_to_le32(BIT(2));
+	ret = wsm_write_mib(priv, WSM_MIB_ID_PROTECTED_MGMT_POLICY,
+			&val, sizeof(val));
+	return ret;
+}
+
+struct wsm_mib_block_ack_policy {
+	u8 tx_tid;
+	u8 reserved1;
+	u8 rx_tid;
+	u8 reserved2;
+} __packed;
+
+static inline int wsm_set_block_ack_policy(struct cw1200_common *priv,
+					   u8 tx_tid_policy,
+					   u8 rx_tid_policy)
+{
+	struct wsm_mib_block_ack_policy val = {
+		.tx_tid = tx_tid_policy,
+		.rx_tid = rx_tid_policy,
+	};
+	return wsm_write_mib(priv, WSM_MIB_ID_BLOCK_ACK_POLICY, &val,
+			     sizeof(val));
+}
+
+struct wsm_mib_association_mode {
+	u8 flags;		/* WSM_ASSOCIATION_MODE_... */
+	u8 preamble;	/* WSM_JOIN_PREAMBLE_... */
+	u8 greenfield;	/* 1 for greenfield */
+	u8 mpdu_start_spacing;
+	__le32 basic_rate_set;
+} __packed;
+
+static inline int wsm_set_association_mode(struct cw1200_common *priv,
+					   struct wsm_mib_association_mode *arg)
+{
+	return wsm_write_mib(priv, WSM_MIB_ID_SET_ASSOCIATION_MODE, arg,
+			     sizeof(*arg));
+}
+
+#define WSM_TX_RATE_POLICY_FLAG_TERMINATE_WHEN_FINISHED BIT(2)
+#define WSM_TX_RATE_POLICY_FLAG_COUNT_INITIAL_TRANSMIT BIT(3)
+struct wsm_tx_rate_retry_policy {
+	u8 index;
+	u8 short_retries;
+	u8 long_retries;
+	/* BIT(2) - Terminate retries when Tx rate retry policy
+	 *          finishes.
+	 * BIT(3) - Count initial frame transmission as part of
+	 *          rate retry counting but not as a retry
+	 *          attempt */
+	u8 flags;
+	u8 rate_recoveries;
+	u8 reserved[3];
+	__le32 rate_count_indices[3];
+} __packed;
+
+struct wsm_set_tx_rate_retry_policy {
+	u8 num;
+	u8 reserved[3];
+	struct wsm_tx_rate_retry_policy tbl[8];
+} __packed;
+
+static inline int wsm_set_tx_rate_retry_policy(struct cw1200_common *priv,
+				struct wsm_set_tx_rate_retry_policy *arg)
+{
+	size_t size = 4 + arg->num * sizeof(struct wsm_tx_rate_retry_policy);
+	return wsm_write_mib(priv, WSM_MIB_ID_SET_TX_RATE_RETRY_POLICY, arg,
+			     size);
+}
+
+/* 4.32 SetEtherTypeDataFrameFilter */
+struct wsm_ether_type_filter_hdr {
+	u8 num;		/* Up to WSM_MAX_FILTER_ELEMENTS */
+	u8 reserved[3];
+} __packed;
+
+struct wsm_ether_type_filter {
+	u8 action;	/* WSM_FILTER_ACTION_XXX */
+	u8 reserved;
+	__le16 type;	/* Type of ethernet frame */
+} __packed;
+
+static inline int wsm_set_ether_type_filter(struct cw1200_common *priv,
+				struct wsm_ether_type_filter_hdr *arg)
+{
+	size_t size = sizeof(struct wsm_ether_type_filter_hdr) +
+		arg->num * sizeof(struct wsm_ether_type_filter);
+	return wsm_write_mib(priv, WSM_MIB_ID_SET_ETHERTYPE_DATAFRAME_FILTER,
+		arg, size);
+}
+
+/* 4.33 SetUDPPortDataFrameFilter */
+struct wsm_udp_port_filter_hdr {
+	u8 num;		/* Up to WSM_MAX_FILTER_ELEMENTS */
+	u8 reserved[3];
+} __packed;
+
+struct wsm_udp_port_filter {
+	u8 action;	/* WSM_FILTER_ACTION_XXX */
+	u8 type;		/* WSM_FILTER_PORT_TYPE_XXX */
+	__le16 port;		/* Port number */
+} __packed;
+
+static inline int wsm_set_udp_port_filter(struct cw1200_common *priv,
+				struct wsm_udp_port_filter_hdr *arg)
+{
+	size_t size = sizeof(struct wsm_udp_port_filter_hdr) +
+		arg->num * sizeof(struct wsm_udp_port_filter);
+	return wsm_write_mib(priv, WSM_MIB_ID_SET_UDPPORT_DATAFRAME_FILTER,
+		arg, size);
+}
+
+/* Undocumented MIBs: */
+/* 4.35 P2PDeviceInfo */
+#define D11_MAX_SSID_LEN		(32)
+
+struct wsm_p2p_device_type {
+	__le16 categoryId;
+	u8 oui[4];
+	__le16 subCategoryId;
+} __packed;
+
+struct wsm_p2p_device_info {
+	struct wsm_p2p_device_type primaryDevice;
+	u8 reserved1[3];
+	u8 devNameSize;
+	u8 localDevName[D11_MAX_SSID_LEN];
+	u8 reserved2[3];
+	u8 numSecDevSupported;
+	struct wsm_p2p_device_type secondaryDevices[0];
+} __packed;
+
+/* 4.36 SetWCDMABand - WO */
+struct wsm_cdma_band {
+	u8 WCDMA_Band;
+	u8 reserved[3];
+} __packed;
+
+/* 4.37 GroupTxSequenceCounter - RO */
+struct wsm_group_tx_seq {
+	__le32 bits_47_16;
+	__le16 bits_15_00;
+	__le16 reserved;
+} __packed;
+
+/* 4.39 SetHtProtection - WO */
+#define WSM_DUAL_CTS_PROT_ENB		(1 << 0)
+#define WSM_NON_GREENFIELD_STA_PRESENT  (1 << 1)
+#define WSM_HT_PROT_MODE__NO_PROT	(0 << 2)
+#define WSM_HT_PROT_MODE__NON_MEMBER	(1 << 2)
+#define WSM_HT_PROT_MODE__20_MHZ	(2 << 2)
+#define WSM_HT_PROT_MODE__NON_HT_MIXED	(3 << 2)
+#define WSM_LSIG_TXOP_PROT_FULL		(1 << 4)
+#define WSM_LARGE_L_LENGTH_PROT		(1 << 5)
+
+struct wsm_ht_protection {
+	__le32 flags;
+} __packed;
+
+/* 4.40 GPIO Command - R/W */
+#define WSM_GPIO_COMMAND_SETUP	0
+#define WSM_GPIO_COMMAND_READ	1
+#define WSM_GPIO_COMMAND_WRITE	2
+#define WSM_GPIO_COMMAND_RESET	3
+#define WSM_GPIO_ALL_PINS	0xFF
+
+struct wsm_gpio_command {
+	u8 GPIO_Command;
+	u8 pin;
+	__le16 config;
+} __packed;
+
+/* 4.41 TSFCounter - RO */
+struct wsm_tsf_counter {
+	__le64 TSF_Counter;
+} __packed;
+
+/* 4.43 Keep alive period */
+struct wsm_keep_alive_period {
+	__le16 keepAlivePeriod;
+	u8 reserved[2];
+} __packed;
+
+static inline int wsm_keep_alive_period(struct cw1200_common *priv,
+					int period)
+{
+	struct wsm_keep_alive_period arg = {
+		.keepAlivePeriod = __cpu_to_le16(period),
+	};
+	return wsm_write_mib(priv, WSM_MIB_ID_KEEP_ALIVE_PERIOD,
+			&arg, sizeof(arg));
+};
+
+/* BSSID filtering */
+struct wsm_set_bssid_filtering {
+	u8 filter;
+	u8 reserved[3];
+} __packed;
+
+static inline int wsm_set_bssid_filtering(struct cw1200_common *priv,
+					  bool enabled)
+{
+	struct wsm_set_bssid_filtering arg = {
+		.filter = !enabled,
+	};
+	return wsm_write_mib(priv, WSM_MIB_ID_DISABLE_BSSID_FILTER,
+			&arg, sizeof(arg));
+}
+
+/* Multicast filtering - 4.5 */
+struct wsm_mib_multicast_filter {
+	__le32 enable;
+	__le32 num_addrs;
+	u8 macaddrs[WSM_MAX_GRP_ADDRTABLE_ENTRIES][ETH_ALEN];
+} __packed;
+
+static inline int wsm_set_multicast_filter(struct cw1200_common *priv,
+					   struct wsm_mib_multicast_filter *fp)
+{
+	return wsm_write_mib(priv, WSM_MIB_ID_DOT11_GROUP_ADDRESSES_TABLE,
+			     fp, sizeof(*fp));
+}
+
+/* ARP IPv4 filtering - 4.10 */
+struct wsm_mib_arp_ipv4_filter {
+	__le32 enable;
+	__be32 ipv4addrs[WSM_MAX_ARP_IP_ADDRTABLE_ENTRIES];
+} __packed;
+
+static inline int wsm_set_arp_ipv4_filter(struct cw1200_common *priv,
+					  struct wsm_mib_arp_ipv4_filter *fp)
+{
+	return wsm_write_mib(priv, WSM_MIB_ID_ARP_IP_ADDRESSES_TABLE,
+			    fp, sizeof(*fp));
+}
+
+/* P2P Power Save Mode Info - 4.31 */
+struct wsm_p2p_ps_modeinfo {
+	u8	oppPsCTWindow;
+	u8	count;
+	u8	reserved;
+	u8	dtimCount;
+	__le32	duration;
+	__le32	interval;
+	__le32	startTime;
+} __packed;
+
+static inline int wsm_set_p2p_ps_modeinfo(struct cw1200_common *priv,
+					  struct wsm_p2p_ps_modeinfo *mi)
+{
+	return wsm_write_mib(priv, WSM_MIB_ID_P2P_PS_MODE_INFO,
+			     mi, sizeof(*mi));
+}
+
+static inline int wsm_get_p2p_ps_modeinfo(struct cw1200_common *priv,
+					  struct wsm_p2p_ps_modeinfo *mi)
+{
+	return wsm_read_mib(priv, WSM_MIB_ID_P2P_PS_MODE_INFO,
+			    mi, sizeof(*mi));
+}
+
+/* UseMultiTxConfMessage */
+
+static inline int wsm_use_multi_tx_conf(struct cw1200_common *priv,
+					bool enabled)
+{
+	__le32 arg = enabled ? __cpu_to_le32(1) : 0;
+
+	return wsm_write_mib(priv, WSM_MIB_USE_MULTI_TX_CONF,
+			&arg, sizeof(arg));
+}
+
+
+/* 4.26 SetUpasdInformation */
+struct wsm_uapsd_info {
+	__le16 uapsd_flags;
+	__le16 min_auto_trigger_interval;
+	__le16 max_auto_trigger_interval;
+	__le16 auto_trigger_step;
+};
+
+static inline int wsm_set_uapsd_info(struct cw1200_common *priv,
+				     struct wsm_uapsd_info *arg)
+{
+	return wsm_write_mib(priv, WSM_MIB_ID_SET_UAPSD_INFORMATION,
+				arg, sizeof(*arg));
+}
+
+/* 4.22 OverrideInternalTxRate */
+struct wsm_override_internal_txrate {
+	u8 internalTxRate;
+	u8 nonErpInternalTxRate;
+	u8 reserved[2];
+} __packed;
+
+static inline int wsm_set_override_internal_txrate(struct cw1200_common *priv,
+				     struct wsm_override_internal_txrate *arg)
+{
+	return wsm_write_mib(priv, WSM_MIB_ID_OVERRIDE_INTERNAL_TX_RATE,
+				arg, sizeof(*arg));
+}
+
+/* ******************************************************************** */
+/* WSM TX port control							*/
+
+void wsm_lock_tx(struct cw1200_common *priv);
+void wsm_lock_tx_async(struct cw1200_common *priv);
+bool wsm_flush_tx(struct cw1200_common *priv);
+void wsm_unlock_tx(struct cw1200_common *priv);
+
+/* ******************************************************************** */
+/* WSM / BH API								*/
+
+int wsm_handle_exception(struct cw1200_common *priv, u8 *data, size_t len);
+int wsm_handle_rx(struct cw1200_common *priv, u16 id, struct wsm_hdr *wsm,
+		  struct sk_buff **skb_p);
+
+/* ******************************************************************** */
+/* wsm_buf API								*/
+
+struct wsm_buf {
+	u8 *begin;
+	u8 *data;
+	u8 *end;
+};
+
+void wsm_buf_init(struct wsm_buf *buf);
+void wsm_buf_deinit(struct wsm_buf *buf);
+
+/* ******************************************************************** */
+/* wsm_cmd API								*/
+
+struct wsm_cmd {
+	spinlock_t lock; /* Protect structure from multiple access */
+	int done;
+	u8 *ptr;
+	size_t len;
+	void *arg;
+	int ret;
+	u16 cmd;
+};
+
+/* ******************************************************************** */
+/* WSM TX buffer access							*/
+
+int wsm_get_tx(struct cw1200_common *priv, u8 **data,
+	       size_t *tx_len, int *burst);
+void wsm_txed(struct cw1200_common *priv, u8 *data);
+
+/* ******************************************************************** */
+/* Queue mapping: WSM <---> linux					*/
+/* Linux: VO VI BE BK							*/
+/* WSM:   BE BK VI VO							*/
+
+static inline u8 wsm_queue_id_to_linux(u8 queue_id)
+{
+	static const u8 queue_mapping[] = {
+		2, 3, 1, 0
+	};
+	return queue_mapping[queue_id];
+}
+
+static inline u8 wsm_queue_id_to_wsm(u8 queue_id)
+{
+	static const u8 queue_mapping[] = {
+		3, 2, 0, 1
+	};
+	return queue_mapping[queue_id];
+}
+
+
+#ifdef CONFIG_CW1200_ETF
+int wsm_raw_cmd(struct cw1200_common *priv, u8 *data, size_t len);
+#endif
+
+#endif /* CW1200_HWIO_H_INCLUDED */
diff --git a/include/linux/cw1200_platform.h b/include/linux/cw1200_platform.h
new file mode 100644
index 0000000..c168fa5
--- /dev/null
+++ b/include/linux/cw1200_platform.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#ifndef CW1200_PLAT_H_INCLUDED
+#define CW1200_PLAT_H_INCLUDED
+
+struct cw1200_platform_data_spi {
+	u8 spi_bits_per_word;           /* REQUIRED */
+	u16 ref_clk;                    /* REQUIRED (in KHz) */
+
+	/* All others are optional */
+	bool have_5ghz;
+	const struct resource *reset;   /* GPIO to RSTn signal */
+	const struct resource *powerup; /* GPIO to POWERUP signal */
+	int (*power_ctrl)(const struct cw1200_platform_data_spi *pdata,
+			  bool enable); /* Control 3v3 / 1v8 supply */
+	int (*clk_ctrl)(const struct cw1200_platform_data_spi *pdata,
+			bool enable); /* Control CLK32K */
+	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
+	const char *sdd_file;  /* if NULL, will use default for detected hw type */
+};
+
+struct cw1200_platform_data_sdio {
+	u16 ref_clk;                    /* REQUIRED (in KHz) */
+
+	/* All others are optional */
+	const struct resource *irq;     /* if using GPIO for IRQ */
+	bool have_5ghz;
+	bool no_nptb;                   /* SDIO hardware does not support non-power-of-2-blocksizes */
+	const struct resource *reset;   /* GPIO to RSTn signal */
+	const struct resource *powerup; /* GPIO to POWERUP signal */
+	int (*power_ctrl)(const struct cw1200_platform_data_sdio *pdata,
+			  bool enable); /* Control 3v3 / 1v8 supply */
+	int (*clk_ctrl)(const struct cw1200_platform_data_sdio *pdata,
+			bool enable); /* Control CLK32K */
+	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
+	const char *sdd_file;  /* if NULL, will use default for detected hw type */
+};
+
+const void *cw1200_get_platform_data(void);
+
+#endif /* CW1200_PLAT_H_INCLUDED */
-- 
cgit v0.10.2


From debff6184c32149bd08cfecfafbebb96201be37d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 14 May 2013 13:53:45 +0200
Subject: iwlwifi: mvm: implement D3 testing

For testing the D3 (WoWLAN) firmware, it is useful to be able
to run the firmware with instrumentation while the host isn't
sleeping and can poke at the firmware debug logging etc.

Implement this by a debugfs file. When the file is opened the
D3 firmware is loaded and all regular commands are blocked.
While the file is being read, poll the firmware's PME status
flag and report EOF once it changes to non-zero. When it is
closed, do (most of) the resume processing. This lets a user
just "cat" the file. Pressing Ctrl-C to kill the cat process
will resume the firwmare as though the platform resumed for
non-wireless reason and when the firmware wants to wake up
reading from the file automatically completes.

Unlike in real suspend, only disable interrupts and don't
reset the TX/RX hardware while in the test mode. This is a
workaround for some interrupt problems that happen only when
the PCIe link isn't fully reset (presumably by changing the
PCI config space registers which the core PCI code does.)

Note that while regular operations are blocked from sending
commands to the firmware, they could still be made and cause
strange mac80211 issues. Therefore, while using this testing
feature you need to be careful to not try to disconnect, roam
or similar, and will see warnings for such attempts.

Als note that this requires an upcoming firmware change to
tell the driver the location of the PME status flag in SRAM.
D3 test will fail if the firmware doesn't report the pointer.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index ac7ed3f..c0039a9 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -430,7 +430,7 @@ static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
 	iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET,
 		    CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
 
-	iwl_trans_d3_suspend(priv->trans);
+	iwl_trans_d3_suspend(priv->trans, false);
 
 	goto out;
 
@@ -504,7 +504,7 @@ static int iwlagn_mac_resume(struct ieee80211_hw *hw)
 	/* we'll clear ctx->vif during iwlagn_prepare_restart() */
 	vif = ctx->vif;
 
-	ret = iwl_trans_d3_resume(priv->trans, &d3_status);
+	ret = iwl_trans_d3_resume(priv->trans, &d3_status, false);
 	if (ret)
 		goto out_unlock;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 84f1c8d..be4b2ac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -428,8 +428,9 @@ struct iwl_trans_ops {
 	void (*fw_alive)(struct iwl_trans *trans, u32 scd_addr);
 	void (*stop_device)(struct iwl_trans *trans);
 
-	void (*d3_suspend)(struct iwl_trans *trans);
-	int (*d3_resume)(struct iwl_trans *trans, enum iwl_d3_status *status);
+	void (*d3_suspend)(struct iwl_trans *trans, bool test);
+	int (*d3_resume)(struct iwl_trans *trans, enum iwl_d3_status *status,
+			 bool test);
 
 	int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd);
 
@@ -588,17 +589,18 @@ static inline void iwl_trans_stop_device(struct iwl_trans *trans)
 	trans->state = IWL_TRANS_NO_FW;
 }
 
-static inline void iwl_trans_d3_suspend(struct iwl_trans *trans)
+static inline void iwl_trans_d3_suspend(struct iwl_trans *trans, bool test)
 {
 	might_sleep();
-	trans->ops->d3_suspend(trans);
+	trans->ops->d3_suspend(trans, test);
 }
 
 static inline int iwl_trans_d3_resume(struct iwl_trans *trans,
-				      enum iwl_d3_status *status)
+				      enum iwl_d3_status *status,
+				      bool test)
 {
 	might_sleep();
-	return trans->ops->d3_resume(trans, status);
+	return trans->ops->d3_resume(trans, status, test);
 }
 
 static inline int iwl_trans_send_cmd(struct iwl_trans *trans,
diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 4d3c978..7a2ef3f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -63,6 +63,7 @@
 
 #include <linux/etherdevice.h>
 #include <linux/ip.h>
+#include <linux/fs.h>
 #include <net/cfg80211.h>
 #include <net/ipv6.h>
 #include <net/tcp.h>
@@ -756,7 +757,9 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	return 0;
 }
 
-int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
+static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
+			     struct cfg80211_wowlan *wowlan,
+			     bool test)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_d3_iter_data suspend_iter_data = {
@@ -769,7 +772,7 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
 	struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
 	struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
-	struct iwl_d3_manager_config d3_cfg_cmd = {
+	struct iwl_d3_manager_config d3_cfg_cmd_data = {
 		/*
 		 * Program the minimum sleep time to 10 seconds, as many
 		 * platforms have issues processing a wakeup signal while
@@ -777,17 +780,30 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 		 */
 		.min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
 	};
+	struct iwl_host_cmd d3_cfg_cmd = {
+		.id = D3_CONFIG_CMD,
+		.flags = CMD_SYNC | CMD_WANT_SKB,
+		.data[0] = &d3_cfg_cmd_data,
+		.len[0] = sizeof(d3_cfg_cmd_data),
+	};
 	struct wowlan_key_data key_data = {
 		.use_rsc_tsc = false,
 		.tkip = &tkip_cmd,
 		.use_tkip = false,
 	};
 	int ret, i;
+	int len __maybe_unused;
 	u16 seq;
 	u8 old_aux_sta_id, old_ap_sta_id = IWL_MVM_STATION_COUNT;
 
-	if (WARN_ON(!wowlan))
+	if (!wowlan) {
+		/*
+		 * mac80211 shouldn't get here, but for D3 test
+		 * it doesn't warrant a warning
+		 */
+		WARN_ON(!test);
 		return -EINVAL;
+	}
 
 	key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
 	if (!key_data.rsc_tsc)
@@ -1012,14 +1028,26 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 		goto out;
 
 	/* must be last -- this switches firmware state */
-	ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC,
-				   sizeof(d3_cfg_cmd), &d3_cfg_cmd);
+	ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
 	if (ret)
 		goto out;
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	len = le32_to_cpu(d3_cfg_cmd.resp_pkt->len_n_flags) &
+		FH_RSCSR_FRAME_SIZE_MSK;
+	if (len >= sizeof(u32) * 2) {
+		mvm->d3_test_pme_ptr =
+			le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
+	} else if (test) {
+		/* in test mode we require the pointer */
+		ret = -EIO;
+		goto out;
+	}
+#endif
+	iwl_free_resp(&d3_cfg_cmd);
 
 	clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
 
-	iwl_trans_d3_suspend(mvm->trans);
+	iwl_trans_d3_suspend(mvm->trans, test);
  out:
 	mvm->aux_sta.sta_id = old_aux_sta_id;
 	mvm_ap_sta->sta_id = old_ap_sta_id;
@@ -1034,6 +1062,11 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	return ret;
 }
 
+int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
+{
+	return __iwl_mvm_suspend(hw, wowlan, false);
+}
+
 static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
 					 struct ieee80211_vif *vif)
 {
@@ -1238,9 +1271,8 @@ static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
 #endif
 }
 
-int iwl_mvm_resume(struct ieee80211_hw *hw)
+static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
 {
-	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_d3_iter_data resume_iter_data = {
 		.mvm = mvm,
 	};
@@ -1260,7 +1292,7 @@ int iwl_mvm_resume(struct ieee80211_hw *hw)
 
 	vif = resume_iter_data.vif;
 
-	ret = iwl_trans_d3_resume(mvm->trans, &d3_status);
+	ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test);
 	if (ret)
 		goto out_unlock;
 
@@ -1277,7 +1309,7 @@ int iwl_mvm_resume(struct ieee80211_hw *hw)
  out_unlock:
 	mutex_unlock(&mvm->mutex);
 
-	if (vif)
+	if (!test && vif)
 		ieee80211_resume_disconnect(vif);
 
 	/* return 1 to reconfigure the device */
@@ -1285,9 +1317,106 @@ int iwl_mvm_resume(struct ieee80211_hw *hw)
 	return 1;
 }
 
+int iwl_mvm_resume(struct ieee80211_hw *hw)
+{
+	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+
+	return __iwl_mvm_resume(mvm, false);
+}
+
 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 
 	device_set_wakeup_enable(mvm->trans->dev, enabled);
 }
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
+{
+	struct iwl_mvm *mvm = inode->i_private;
+	int err;
+
+	if (mvm->d3_test_active)
+		return -EBUSY;
+
+	file->private_data = inode->i_private;
+
+	ieee80211_stop_queues(mvm->hw);
+	synchronize_net();
+
+	/* start pseudo D3 */
+	rtnl_lock();
+	err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
+	rtnl_unlock();
+	if (err > 0)
+		err = -EINVAL;
+	if (err) {
+		ieee80211_wake_queues(mvm->hw);
+		return err;
+	}
+	mvm->d3_test_active = true;
+	return 0;
+}
+
+static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	u32 pme_asserted;
+
+	while (true) {
+		pme_asserted = iwl_trans_read_mem32(mvm->trans,
+						    mvm->d3_test_pme_ptr);
+		if (pme_asserted)
+			break;
+		if (msleep_interruptible(100))
+			break;
+	}
+
+	return 0;
+}
+
+static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
+					      struct ieee80211_vif *vif)
+{
+	if (vif->type == NL80211_IFTYPE_STATION)
+		ieee80211_connection_loss(vif);
+}
+
+static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
+{
+	struct iwl_mvm *mvm = inode->i_private;
+	int remaining_time = 10;
+
+	mvm->d3_test_active = false;
+	__iwl_mvm_resume(mvm, true);
+	iwl_abort_notification_waits(&mvm->notif_wait);
+	ieee80211_restart_hw(mvm->hw);
+
+	/* wait for restart and disconnect all interfaces */
+	while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
+	       remaining_time > 0) {
+		remaining_time--;
+		msleep(1000);
+	}
+
+	if (remaining_time == 0)
+		IWL_ERR(mvm, "Timed out waiting for HW restart to finish!\n");
+
+	ieee80211_iterate_active_interfaces_atomic(
+		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+		iwl_mvm_d3_test_disconn_work_iter, NULL);
+
+	ieee80211_wake_queues(mvm->hw);
+
+	return 0;
+}
+
+const struct file_operations iwl_dbgfs_d3_test_ops = {
+	.llseek = no_llseek,
+	.open = iwl_mvm_d3_test_open,
+	.read = iwl_mvm_d3_test_read,
+	.release = iwl_mvm_d3_test_release,
+};
+#endif
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 69e0806..b7643c1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -938,6 +938,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
 #ifdef CONFIG_PM_SLEEP
 	MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
+	MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
 #endif
 
 	/*
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 6a3220b..384259b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -459,8 +459,10 @@ struct iwl_mvm {
 #ifdef CONFIG_PM_SLEEP
 	int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
+	bool d3_test_active;
 	bool store_d3_resume_sram;
 	void *d3_resume_sram;
+	u32 d3_test_pme_ptr;
 #endif
 #endif
 
@@ -669,6 +671,7 @@ void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
 			      struct inet6_dev *idev);
 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif, int idx);
+extern const struct file_operations iwl_dbgfs_d3_test_ops;
 
 /* BT Coex */
 int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm);
diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
index 1b4db25..a8652dd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
@@ -204,7 +204,8 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 {
 	int ret;
 
-	WARN_ON(ctxt->ref);
+	WARN_ON(!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
+		ctxt->ref);
 	lockdep_assert_held(&mvm->mutex);
 
 	ctxt->channel = chandef->chan;
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index c9b44ab..1e13328 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -76,6 +76,11 @@ int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd)
 {
 	int ret;
 
+#if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP)
+	if (WARN_ON(mvm->d3_test_active))
+		return -EIO;
+#endif
+
 	/*
 	 * Synchronous commands from this op-mode must hold
 	 * the mutex, this ensures we don't try to send two
@@ -125,6 +130,11 @@ int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd,
 
 	lockdep_assert_held(&mvm->mutex);
 
+#if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP)
+	if (WARN_ON(mvm->d3_test_active))
+		return -EIO;
+#endif
+
 	/*
 	 * Only synchronous commands can wait for status,
 	 * we use WANT_SKB so the caller can't.
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 0b02130..197dbe0 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -578,9 +578,17 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans)
 	clear_bit(STATUS_RFKILL, &trans_pcie->status);
 }
 
-static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans)
+static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans, bool test)
 {
 	iwl_disable_interrupts(trans);
+
+	/*
+	 * in testing mode, the host stays awake and the
+	 * hardware won't be reset (not even partially)
+	 */
+	if (test)
+		return;
+
 	iwl_pcie_disable_ict(trans);
 
 	iwl_clear_bit(trans, CSR_GP_CNTRL,
@@ -599,11 +607,18 @@ static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans)
 }
 
 static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans,
-				    enum iwl_d3_status *status)
+				    enum iwl_d3_status *status,
+				    bool test)
 {
 	u32 val;
 	int ret;
 
+	if (test) {
+		iwl_enable_interrupts(trans);
+		*status = IWL_D3_STATUS_ALIVE;
+		return 0;
+	}
+
 	iwl_pcie_set_pwr(trans, false);
 
 	val = iwl_read32(trans, CSR_RESET);
-- 
cgit v0.10.2


From ab276103357637fb26cc851369b5abbdc42afbf4 Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <linux@rempel-privat.de>
Date: Fri, 24 May 2013 12:18:30 +0200
Subject: ath9k: remove useless flag conversation.

some flags used only outside of ath9k - In this case we can use
"enum mac80211_rx_flags" and pass it upstream without extra
conversation.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 301bf72..5163abd 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -469,6 +469,7 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
 
 	rxs->rs_status = 0;
 	rxs->rs_flags =  0;
+	rxs->flag =  0;
 
 	rxs->rs_datalen = rxsp->status2 & AR_DataLen;
 	rxs->rs_tstamp =  rxsp->status3;
@@ -493,8 +494,8 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
 	rxs->rs_isaggr = (rxsp->status11 & AR_RxAggr) ? 1 : 0;
 	rxs->rs_moreaggr = (rxsp->status11 & AR_RxMoreAggr) ? 1 : 0;
 	rxs->rs_antenna = (MS(rxsp->status4, AR_RxAntenna) & 0x7);
-	rxs->rs_flags  = (rxsp->status4 & AR_GI) ? ATH9K_RX_GI : 0;
-	rxs->rs_flags  |= (rxsp->status4 & AR_2040) ? ATH9K_RX_2040 : 0;
+	rxs->flag  |= (rxsp->status4 & AR_GI) ? RX_FLAG_SHORT_GI : 0;
+	rxs->flag  |= (rxsp->status4 & AR_2040) ? RX_FLAG_40MHZ : 0;
 
 	rxs->evm0 = rxsp->status6;
 	rxs->evm1 = rxsp->status7;
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 498fee0..a52081d 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -547,6 +547,7 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
 
 	rs->rs_status = 0;
 	rs->rs_flags = 0;
+	rs->flag = 0;
 
 	rs->rs_datalen = ads.ds_rxstatus1 & AR_DataLen;
 	rs->rs_tstamp = ads.AR_RcvTimestamp;
@@ -586,10 +587,12 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
 	rs->rs_moreaggr =
 		(ads.ds_rxstatus8 & AR_RxMoreAggr) ? 1 : 0;
 	rs->rs_antenna = MS(ads.ds_rxstatus3, AR_RxAntenna);
-	rs->rs_flags =
-		(ads.ds_rxstatus3 & AR_GI) ? ATH9K_RX_GI : 0;
-	rs->rs_flags |=
-		(ads.ds_rxstatus3 & AR_2040) ? ATH9K_RX_2040 : 0;
+
+	/* directly mapped flags for ieee80211_rx_status */
+	rs->flag |=
+		(ads.ds_rxstatus3 & AR_GI) ? RX_FLAG_SHORT_GI : 0;
+	rs->flag |=
+		(ads.ds_rxstatus3 & AR_2040) ? RX_FLAG_40MHZ : 0;
 
 	if (ads.ds_rxstatus8 & AR_PreDelimCRCErr)
 		rs->rs_flags |= ATH9K_RX_DELIM_CRC_PRE;
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 5865f92..3f1e775 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -149,6 +149,7 @@ struct ath_rx_status {
 	u32 evm2;
 	u32 evm3;
 	u32 evm4;
+	u32 flag; /* see enum mac80211_rx_flags */
 };
 
 struct ath_htc_rx_status {
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 8be2b5d..b4b758d 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -868,10 +868,7 @@ static int ath9k_process_rate(struct ath_common *common,
 	if (rx_stats->rs_rate & 0x80) {
 		/* HT rate */
 		rxs->flag |= RX_FLAG_HT;
-		if (rx_stats->rs_flags & ATH9K_RX_2040)
-			rxs->flag |= RX_FLAG_40MHZ;
-		if (rx_stats->rs_flags & ATH9K_RX_GI)
-			rxs->flag |= RX_FLAG_SHORT_GI;
+		rxs->flag |= rx_stats->flag;
 		rxs->rate_idx = rx_stats->rs_rate & 0x7f;
 		return 0;
 	}
-- 
cgit v0.10.2


From b0a1ae976d6cd40ff90ba87883e17eb2610dae3d Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <linux@rempel-privat.de>
Date: Fri, 24 May 2013 20:30:59 +0200
Subject: ath9k: check for Rx-STBC flag and pass it to ieee80211

This patch make use of STBC flag in DMA RX descriptor.
Only devices after ar9280 can provide this information.

If card support it we will set HAVE_STBC flag, to show
clint programm thet STBC is supported but not received.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index c7b888f..0536d44 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -21,6 +21,7 @@
 #include <linux/ath9k_platform.h>
 #include <linux/module.h>
 #include <linux/relay.h>
+#include <net/ieee80211_radiotap.h>
 
 #include "ath9k.h"
 
@@ -766,8 +767,13 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 		IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 		IEEE80211_HW_SUPPORTS_RC_TABLE;
 
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
-		 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
+	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
+		hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
+
+		if (AR_SREV_9280_20_OR_LATER(ah))
+			hw->radiotap_mcs_details |=
+				IEEE80211_RADIOTAP_MCS_HAVE_STBC;
+	}
 
 	if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || ath9k_modparam_nohwcrypt)
 		hw->flags |= IEEE80211_HW_MFP_CAPABLE;
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index a52081d..d055e38 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -593,6 +593,11 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
 		(ads.ds_rxstatus3 & AR_GI) ? RX_FLAG_SHORT_GI : 0;
 	rs->flag |=
 		(ads.ds_rxstatus3 & AR_2040) ? RX_FLAG_40MHZ : 0;
+	if (AR_SREV_9280_20_OR_LATER(ah))
+		rs->flag |=
+			(ads.ds_rxstatus3 & AR_STBC) ?
+				/* we can only Nss=1 STBC */
+				(1 << RX_FLAG_STBC_SHIFT) : 0;
 
 	if (ads.ds_rxstatus8 & AR_PreDelimCRCErr)
 		rs->rs_flags |= ATH9K_RX_DELIM_CRC_PRE;
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 3f1e775..b02dfce 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -534,7 +534,8 @@ struct ar5416_desc {
 #define AR_2040             0x00000002
 #define AR_Parallel40       0x00000004
 #define AR_Parallel40_S     2
-#define AR_RxStatusRsvd30   0x000000f8
+#define AR_STBC             0x00000008 /* on ar9280 and later */
+#define AR_RxStatusRsvd30   0x000000f0
 #define AR_RxAntenna	    0xffffff00
 #define AR_RxAntenna_S	    8
 
-- 
cgit v0.10.2


From 4e17b87e792ed19e75a96eea618b90510265120c Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Wed, 29 May 2013 22:22:05 -0400
Subject: cw1200: Fix compile with CONFIG_PM=n

Intel's 0-day kernel build tester caught this build failure.  This patch
properly wraps everything that depends on CONFIG_PM.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/Makefile b/drivers/net/wireless/cw1200/Makefile
index c197372..1aa3682 100644
--- a/drivers/net/wireless/cw1200/Makefile
+++ b/drivers/net/wireless/cw1200/Makefile
@@ -8,9 +8,9 @@ cw1200_core-y := \
 		wsm.o \
 		sta.o \
 		scan.o \
-		pm.o \
 		debug.o
 cw1200_core-$(CONFIG_CW1200_ITP)	+= itp.o
+cw1200_core-$(CONFIG_PM)	+= pm.o
 
 # CFLAGS_sta.o += -DDEBUG
 
diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index f6e2219..2059a31 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -334,6 +334,7 @@ static void cw1200_sdio_disconnect(struct sdio_func *func)
 	}
 }
 
+#ifdef CONFIG_PM
 static int cw1200_sdio_suspend(struct device *dev)
 {
 	int ret;
@@ -360,15 +361,18 @@ static const struct dev_pm_ops cw1200_pm_ops = {
 	.suspend = cw1200_sdio_suspend,
 	.resume = cw1200_sdio_resume,
 };
+#endif
 
 static struct sdio_driver sdio_driver = {
 	.name		= "cw1200_wlan_sdio",
 	.id_table	= cw1200_sdio_ids,
 	.probe		= cw1200_sdio_probe,
 	.remove		= cw1200_sdio_disconnect,
+#ifdef CONFIG_PM
 	.drv = {
 		.pm = &cw1200_pm_ops,
 	}
+#endif
 };
 
 /* Init Module function -> Called by insmod */
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index 04af685..b957d4a 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -436,6 +436,7 @@ static int cw1200_spi_disconnect(struct spi_device *func)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 static int cw1200_spi_suspend(struct device *dev, pm_message_t state)
 {
 	struct sbus_priv *self = spi_get_drvdata(to_spi_device(dev));
@@ -451,6 +452,7 @@ static int cw1200_spi_resume(struct device *dev)
 {
 	return 0;
 }
+#endif
 
 static struct spi_driver spi_driver = {
 	.probe		= cw1200_spi_probe,
@@ -459,8 +461,10 @@ static struct spi_driver spi_driver = {
 		.name		= "cw1200_wlan_spi",
 		.bus            = &spi_bus_type,
 		.owner          = THIS_MODULE,
+#ifdef CONFIG_PM
 		.suspend        = cw1200_spi_suspend,
 		.resume         = cw1200_spi_resume,
+#endif
 	},
 };
 
diff --git a/drivers/net/wireless/cw1200/main.c b/drivers/net/wireless/cw1200/main.c
index 8426d3d..ef4b0b9 100644
--- a/drivers/net/wireless/cw1200/main.c
+++ b/drivers/net/wireless/cw1200/main.c
@@ -234,8 +234,10 @@ static const struct ieee80211_ops cw1200_ops = {
 	.get_stats		= cw1200_get_stats,
 	.ampdu_action		= cw1200_ampdu_action,
 	.flush			= cw1200_flush,
+#ifdef CONFIG_PM
 	.suspend		= cw1200_wow_suspend,
 	.resume			= cw1200_wow_resume,
+#endif
 	/* Intentionally not offloaded:					*/
 	/*.channel_switch	= cw1200_channel_switch,		*/
 	/*.remain_on_channel	= cw1200_remain_on_channel,		*/
@@ -292,10 +294,12 @@ static struct ieee80211_hw *cw1200_init_common(const u8 *macaddr,
 					  BIT(NL80211_IFTYPE_P2P_CLIENT) |
 					  BIT(NL80211_IFTYPE_P2P_GO);
 
+#ifdef CONFIG_PM
 	/* Support only for limited wowlan functionalities */
 	hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY |
 		WIPHY_WOWLAN_DISCONNECT;
 	hw->wiphy->wowlan.n_patterns = 0;
+#endif
 
 	hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
 
@@ -419,18 +423,22 @@ static int cw1200_register_common(struct ieee80211_hw *dev)
 		goto done;
 #endif
 
+#ifdef CONFIG_PM
 	err = cw1200_pm_init(&priv->pm_state, priv);
 	if (err) {
 		pr_err("Cannot init PM. (%d).\n",
 		       err);
 		return err;
 	}
+#endif
 
 	err = ieee80211_register_hw(dev);
 	if (err) {
 		pr_err("Cannot register device (%d).\n",
 		       err);
+#ifdef CONFIG_PM
 		cw1200_pm_deinit(&priv->pm_state);
+#endif
 		return err;
 	}
 
@@ -482,7 +490,9 @@ static void cw1200_unregister_common(struct ieee80211_hw *dev)
 		cw1200_queue_deinit(&priv->tx_queue[i]);
 
 	cw1200_queue_stats_deinit(&priv->tx_queue_stats);
+#ifdef CONFIG_PM
 	cw1200_pm_deinit(&priv->pm_state);
+#endif
 }
 
 /* Clock is in KHz */
diff --git a/drivers/net/wireless/cw1200/pm.h b/drivers/net/wireless/cw1200/pm.h
index 516d967..3ed90ff 100644
--- a/drivers/net/wireless/cw1200/pm.h
+++ b/drivers/net/wireless/cw1200/pm.h
@@ -25,14 +25,19 @@ struct cw1200_pm_state {
 	spinlock_t lock; /* Protect access */
 };
 
+#ifdef CONFIG_PM
 int cw1200_pm_init(struct cw1200_pm_state *pm,
 		    struct cw1200_common *priv);
 void cw1200_pm_deinit(struct cw1200_pm_state *pm);
-void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
-			  unsigned long tmo);
 int cw1200_wow_suspend(struct ieee80211_hw *hw,
 		       struct cfg80211_wowlan *wowlan);
 int cw1200_wow_resume(struct ieee80211_hw *hw);
 int cw1200_can_suspend(struct cw1200_common *priv);
-
+void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
+			  unsigned long tmo);
+#else
+static inline void cw1200_pm_stay_awake(struct cw1200_pm_state *pm,
+					unsigned long tmo) {
+}
+#endif
 #endif
-- 
cgit v0.10.2


From 4696d477d8dd23ad990d716a90d08cb149c2e861 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 30 May 2013 19:41:11 +0800
Subject: cw1200: remove duplicated include from wsm.c

Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/wsm.c b/drivers/net/wireless/cw1200/wsm.c
index 4db6cc1..f3fd9b2 100644
--- a/drivers/net/wireless/cw1200/wsm.c
+++ b/drivers/net/wireless/cw1200/wsm.c
@@ -12,7 +12,6 @@
 
 #include <linux/skbuff.h>
 #include <linux/wait.h>
-#include <linux/skbuff.h>
 #include <linux/delay.h>
 #include <linux/sched.h>
 #include <linux/random.h>
-- 
cgit v0.10.2


From c0dc79d607c39f5f6c6fd6cc8119b81639a6d6f3 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 30 May 2013 19:42:35 +0800
Subject: cw1200: convert to use simple_open()

This removes an open coded simple_open() function and
replaces file operations references to the function
with simple_open() instead.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/debug.c b/drivers/net/wireless/cw1200/debug.c
index b815181..eb40c9c 100644
--- a/drivers/net/wireless/cw1200/debug.c
+++ b/drivers/net/wireless/cw1200/debug.c
@@ -357,12 +357,6 @@ static const struct file_operations fops_counters = {
 	.owner = THIS_MODULE,
 };
 
-static int cw1200_generic_open(struct inode *inode, struct file *file)
-{
-	file->private_data = inode->i_private;
-	return 0;
-}
-
 #ifdef CONFIG_CW1200_ETF
 static int cw1200_etf_out_show(struct seq_file *seq, void *v)
 {
@@ -511,7 +505,7 @@ static ssize_t cw1200_wsm_dumps(struct file *file,
 }
 
 static const struct file_operations fops_wsm_dumps = {
-	.open = cw1200_generic_open,
+	.open = simple_open,
 	.write = cw1200_wsm_dumps,
 	.llseek = default_llseek,
 };
-- 
cgit v0.10.2


From d071c0430c6ae42fedec78f1ec2e37603adb8c78 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 30 May 2013 19:42:54 +0800
Subject: cw1200: use module_spi_driver to simplify the code

module_spi_driver() makes the code simpler by eliminating
boilerplate code.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index b957d4a..feb541b 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -468,17 +468,4 @@ static struct spi_driver spi_driver = {
 	},
 };
 
-/* Init Module function -> Called by insmod */
-static int __init cw1200_spi_init(void)
-{
-	return spi_register_driver(&spi_driver);
-}
-
-/* Called at Driver Unloading */
-static void __exit cw1200_spi_exit(void)
-{
-	spi_unregister_driver(&spi_driver);
-}
-
-module_init(cw1200_spi_init);
-module_exit(cw1200_spi_exit);
+module_spi_driver(spi_driver);
-- 
cgit v0.10.2


From 3e817f086f06069a23b797ee2279bbae638d5edc Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 30 May 2013 19:43:13 +0800
Subject: cw1200: remove unused including <linux/version.h>

Remove including <linux/version.h> that don't need it.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/cw1200.h b/drivers/net/wireless/cw1200/cw1200.h
index 2aa17ca..e9424e6 100644
--- a/drivers/net/wireless/cw1200/cw1200.h
+++ b/drivers/net/wireless/cw1200/cw1200.h
@@ -19,7 +19,6 @@
 #define CW1200_H
 
 #include <linux/wait.h>
-#include <linux/version.h>
 #include <linux/mutex.h>
 #include <linux/workqueue.h>
 #include <net/mac80211.h>
diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index 2059a31..863510d 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -9,7 +9,6 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/gpio.h>
 #include <linux/delay.h>
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index feb541b..75adef0 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -13,7 +13,6 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/gpio.h>
 #include <linux/delay.h>
-- 
cgit v0.10.2


From dc7551cbf7744ef7374c3f3c46817413ad4bcc40 Mon Sep 17 00:00:00 2001
From: Manish Chopra <manish.chopra@qlogic.com>
Date: Thu, 30 May 2013 09:51:34 +0000
Subject: netxen_nic: Log driver version with firmware version

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 51e13d9..2294cd2 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -860,9 +860,9 @@ netxen_check_options(struct netxen_adapter *adapter)
 		adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
 	}
 
-	dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
-			fw_major, fw_minor, fw_build,
-			adapter->ahw.cut_through ? "cut-through" : "legacy");
+	dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
+		 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
+		 adapter->ahw.cut_through ? "cut-through" : "legacy");
 
 	if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
 		adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
-- 
cgit v0.10.2


From b08a92bb7381ff03d4101bcc61e65120bc690a4f Mon Sep 17 00:00:00 2001
From: Manish Chopra <manish.chopra@qlogic.com>
Date: Thu, 30 May 2013 09:51:35 +0000
Subject: netxen_nic: Log proper error message in case of mismatched adapter
 type

o log "Unknown" board name and "Unknown" serial number in case
  of mismatched adapter type found. This will avoid weird characters
  logs when an adapter is in bad state or corrupted.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
index 322a36b..e5ab1ec 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
@@ -1855,7 +1855,7 @@ static const struct netxen_brdinfo netxen_boards[] = {
 
 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(netxen_boards)
 
-static inline void get_brd_name_by_type(u32 type, char *name)
+static inline int netxen_nic_get_brd_name_by_type(u32 type, char *name)
 {
 	int i, found = 0;
 	for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
@@ -1864,10 +1864,14 @@ static inline void get_brd_name_by_type(u32 type, char *name)
 			found = 1;
 			break;
 		}
+	}
 
+	if (!found) {
+		strcpy(name, "Unknown");
+		return -EINVAL;
 	}
-	if (!found)
-		name = "Unknown";
+
+	return 0;
 }
 
 static inline u32 netxen_tx_avail(struct nx_host_tx_ring *tx_ring)
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 2294cd2..558df46 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -841,7 +841,9 @@ netxen_check_options(struct netxen_adapter *adapter)
 	}
 
 	if (adapter->portnum == 0) {
-		get_brd_name_by_type(adapter->ahw.board_type, brd_name);
+		if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
+						    brd_name))
+			strcpy(serial_num, "Unknown");
 
 		pr_info("%s: %s Board S/N %s  Chip rev 0x%x\n",
 				module_name(THIS_MODULE),
-- 
cgit v0.10.2


From a120e864676548454f8d061e7d8a2e68c908a794 Mon Sep 17 00:00:00 2001
From: Manish Chopra <manish.chopra@qlogic.com>
Date: Thu, 30 May 2013 09:51:36 +0000
Subject: netxen_nic: netxen_setup_intr() function code cleanup

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 558df46..927ae9f 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -593,47 +593,43 @@ static const struct net_device_ops netxen_netdev_ops = {
 };
 
 static void
-netxen_setup_intr(struct netxen_adapter *adapter)
+netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
 {
 	struct netxen_legacy_intr_set *legacy_intrp;
-	struct pci_dev *pdev = adapter->pdev;
-	int err, num_msix;
-
-	if (adapter->rss_supported) {
-		num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
-			MSIX_ENTRIES_PER_ADAPTER : 2;
-	} else
-		num_msix = 1;
-
-	adapter->max_sds_rings = 1;
-
-	adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
+	u32 tgt_status_reg, int_state_reg;
 
 	if (adapter->ahw.revision_id >= NX_P3_B0)
 		legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
 	else
 		legacy_intrp = &legacy_intr[0];
 
+	tgt_status_reg = legacy_intrp->tgt_status_reg;
+	int_state_reg = ISR_INT_STATE_REG;
+
 	adapter->int_vec_bit = legacy_intrp->int_vec_bit;
-	adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
-			legacy_intrp->tgt_status_reg);
+	adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
 	adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
-			legacy_intrp->tgt_mask_reg);
+						  legacy_intrp->tgt_mask_reg);
 	adapter->pci_int_reg = netxen_get_ioaddr(adapter,
-			legacy_intrp->pci_int_reg);
+						 legacy_intrp->pci_int_reg);
 	adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
 
 	if (adapter->ahw.revision_id >= NX_P3_B1)
 		adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
-			ISR_INT_STATE_REG);
+							       int_state_reg);
 	else
 		adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
-			CRB_INT_VECTOR);
+							       CRB_INT_VECTOR);
+}
 
-	netxen_set_msix_bit(pdev, 0);
+static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
+				       int num_msix)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	u32 value;
+	int err;
 
 	if (adapter->msix_supported) {
-
 		netxen_init_msix_entries(adapter, num_msix);
 		err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 		if (err == 0) {
@@ -644,26 +640,45 @@ netxen_setup_intr(struct netxen_adapter *adapter)
 				adapter->max_sds_rings = num_msix;
 
 			dev_info(&pdev->dev, "using msi-x interrupts\n");
-			return;
+			return 0;
 		}
-
-		if (err > 0)
-			pci_disable_msix(pdev);
-
 		/* fall through for msi */
 	}
 
 	if (use_msi && !pci_enable_msi(pdev)) {
+		value = msi_tgt_status[adapter->ahw.pci_func];
 		adapter->flags |= NETXEN_NIC_MSI_ENABLED;
-		adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
-				msi_tgt_status[adapter->ahw.pci_func]);
-		dev_info(&pdev->dev, "using msi interrupts\n");
+		adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
 		adapter->msix_entries[0].vector = pdev->irq;
-		return;
+		dev_info(&pdev->dev, "using msi interrupts\n");
+		return 0;
 	}
 
-	dev_info(&pdev->dev, "using legacy interrupts\n");
+	return -EIO;
+}
+
+static void netxen_setup_intr(struct netxen_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	int num_msix;
+
+	if (adapter->rss_supported)
+		num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
+			    MSIX_ENTRIES_PER_ADAPTER : 2;
+	else
+		num_msix = 1;
+
+	adapter->max_sds_rings = 1;
+	adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
+
+	netxen_initialize_interrupt_registers(adapter);
+	netxen_set_msix_bit(pdev, 0);
+
+	if (!netxen_setup_msi_interrupts(adapter, num_msix))
+		return;
+
 	adapter->msix_entries[0].vector = pdev->irq;
+	dev_info(&pdev->dev, "using legacy interrupts\n");
 }
 
 static void
-- 
cgit v0.10.2


From b37eb210c076b0465fcb8d14694fcce3f267ac63 Mon Sep 17 00:00:00 2001
From: Manish Chopra <manish.chopra@qlogic.com>
Date: Thu, 30 May 2013 09:51:37 +0000
Subject: netxen_nic: Avoid mixed mode interrupts

o Adapters do not support co-existence of INTx Interrupt with
  MSI-X or MSI among multiple functions. Prevent attaching
  of a function during normal load, if adapter gets into mixed
  mode of interrupts

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h
index 28e0769..32c7906 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h
@@ -734,6 +734,9 @@ enum {
 #define NIC_CRB_BASE_2		(NETXEN_CAM_RAM(0x700))
 #define NETXEN_NIC_REG(X)	(NIC_CRB_BASE+(X))
 #define NETXEN_NIC_REG_2(X)	(NIC_CRB_BASE_2+(X))
+#define NETXEN_INTR_MODE_REG	NETXEN_NIC_REG(0x44)
+#define NETXEN_MSI_MODE		0x1
+#define NETXEN_INTX_MODE	0x2
 
 #define NX_CDRP_CRB_OFFSET		(NETXEN_NIC_REG(0x18))
 #define NX_ARG1_CRB_OFFSET		(NETXEN_NIC_REG(0x1c))
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 927ae9f..20c7b3c 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -592,6 +592,22 @@ static const struct net_device_ops netxen_netdev_ops = {
 #endif
 };
 
+static inline bool netxen_function_zero(struct pci_dev *pdev)
+{
+	return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
+}
+
+static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
+					     u32 mode)
+{
+	NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
+}
+
+static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
+{
+	return NXRD32(adapter, NETXEN_INTR_MODE_REG);
+}
+
 static void
 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
 {
@@ -654,10 +670,11 @@ static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
 		return 0;
 	}
 
+	dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
 	return -EIO;
 }
 
-static void netxen_setup_intr(struct netxen_adapter *adapter)
+static int netxen_setup_intr(struct netxen_adapter *adapter)
 {
 	struct pci_dev *pdev = adapter->pdev;
 	int num_msix;
@@ -674,11 +691,24 @@ static void netxen_setup_intr(struct netxen_adapter *adapter)
 	netxen_initialize_interrupt_registers(adapter);
 	netxen_set_msix_bit(pdev, 0);
 
-	if (!netxen_setup_msi_interrupts(adapter, num_msix))
-		return;
+	if (netxen_function_zero(pdev)) {
+		if (!netxen_setup_msi_interrupts(adapter, num_msix))
+			netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
+		else
+			netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
+	} else {
+		if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
+		    netxen_setup_msi_interrupts(adapter, num_msix)) {
+			dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
+			return -EIO;
+		}
+	}
 
-	adapter->msix_entries[0].vector = pdev->irq;
-	dev_info(&pdev->dev, "using legacy interrupts\n");
+	if (!NETXEN_IS_MSI_FAMILY(adapter)) {
+		adapter->msix_entries[0].vector = pdev->irq;
+		dev_info(&pdev->dev, "using legacy interrupts\n");
+	}
+	return 0;
 }
 
 static void
@@ -1525,7 +1555,13 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	netxen_nic_clear_stats(adapter);
 
-	netxen_setup_intr(adapter);
+	err = netxen_setup_intr(adapter);
+
+	if (err) {
+		dev_err(&adapter->pdev->dev,
+			"Failed to setup interrupts, error = %d\n", err);
+		goto err_out_disable_msi;
+	}
 
 	err = netxen_setup_netdev(adapter, netdev);
 	if (err)
@@ -1613,7 +1649,7 @@ static void netxen_nic_remove(struct pci_dev *pdev)
 	clear_bit(__NX_RESETTING, &adapter->state);
 
 	netxen_teardown_intr(adapter);
-
+	netxen_set_interrupt_mode(adapter, 0);
 	netxen_remove_diag_entries(adapter);
 
 	netxen_cleanup_pci_map(adapter);
-- 
cgit v0.10.2


From 90648153754cc1ca2eb08cd19c7b13354a795183 Mon Sep 17 00:00:00 2001
From: Manish Chopra <manish.chopra@qlogic.com>
Date: Thu, 30 May 2013 09:51:38 +0000
Subject: netxen_nic: Update version to 4.0.81

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
index e5ab1ec..3fe09ab 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
@@ -53,8 +53,8 @@
 
 #define _NETXEN_NIC_LINUX_MAJOR 4
 #define _NETXEN_NIC_LINUX_MINOR 0
-#define _NETXEN_NIC_LINUX_SUBVERSION 80
-#define NETXEN_NIC_LINUX_VERSIONID  "4.0.80"
+#define _NETXEN_NIC_LINUX_SUBVERSION 81
+#define NETXEN_NIC_LINUX_VERSIONID  "4.0.81"
 
 #define NETXEN_VERSION_CODE(a, b, c)	(((a) << 24) + ((b) << 16) + (c))
 #define _major(v)	(((v) >> 24) & 0xff)
-- 
cgit v0.10.2


From ccfecdfe16a872ed3e8322ea48e34502568eb849 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 00:28:03 +0000
Subject: net: emaclite: Report failures in mdio setup

Be more verbose when any problem happens.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 919b983..a16dc35 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -852,8 +852,10 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 	/* Don't register the MDIO bus if the phy_node or its parent node
 	 * can't be found.
 	 */
-	if (!np)
+	if (!np) {
+		dev_err(dev, "Failed to register mdio bus.\n");
 		return -ENODEV;
+	}
 
 	/* Enable the MDIO bus by asserting the enable bit in MDIO Control
 	 * register.
@@ -862,8 +864,10 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 		 XEL_MDIOCTRL_MDIOEN_MASK);
 
 	bus = mdiobus_alloc();
-	if (!bus)
+	if (!bus) {
+		dev_err(dev, "Failed to allocal mdiobus\n");
 		return -ENOMEM;
+	}
 
 	of_address_to_resource(np, 0, &res);
 	snprintf(bus->id, MII_BUS_ID_SIZE, "%.8llx",
@@ -879,8 +883,10 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 	lp->mii_bus = bus;
 
 	rc = of_mdiobus_register(bus, np);
-	if (rc)
+	if (rc) {
+		dev_err(dev, "Failed to register mdio bus.\n");
 		goto err_register;
+	}
 
 	return 0;
 
-- 
cgit v0.10.2


From e0a3bc65448c01289a74329ddf6c84d8c0594e59 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 00:28:04 +0000
Subject: net: emaclite: Support multiple phys connected to one MDIO bus

For system which contains at least two ethernet IP where
one IP manage MDIO bus with several PHYs.

Example dts node:
ethernet_mac0: ethernet@81000000 {
	compatible = "xlnx,xps-ethernetlite-1.00.a";
	device_type = "network";
	interrupt-parent = <&xps_intc_0>;
	interrupts = < 1 0 >;
		local-mac-address = [ 00 0a 35 00 db bb ];
	phy-handle = <&ethernet_mac0_phy0>;
	reg = < 0x81000000 0x10000 >;
	xlnx,duplex = <0x1>;
	xlnx,family = "spartan3e";
	xlnx,include-internal-loopback = <0x0>;
	xlnx,include-mdio = <0x1>;
	xlnx,rx-ping-pong = <0x0>;
	xlnx,tx-ping-pong = <0x0>;
	ethernet_mac0_mdio {
		#address-cells = <1>;
		#size-cells = <0>;
		ethernet_mac0_phy0: phy@1 {
			reg = <0x1>;
		} ;
		ethernet_mac0_phy1: phy@3 {
			reg = <0x3>;
		} ;
	} ;
} ;
ethernet_mac2: ethernet@81040000 {
	compatible = "xlnx,xps-ethernetlite-1.00.a";
	device_type = "network";
	interrupt-parent = <&xps_intc_0>;
	interrupts = < 11 0 >;
		local-mac-address = [ 00 0a 35 00 db bb ];
	phy-handle = <&ethernet_mac0_phy1>;
	reg = < 0x81040000 0x10000 >;
	xlnx,duplex = <0x1>;
	xlnx,family = "spartan3e";
	xlnx,include-internal-loopback = <0x0>;
	xlnx,include-mdio = <0x0>;
	xlnx,rx-ping-pong = <0x0>;
	xlnx,tx-ping-pong = <0x0>;
} ;

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index a16dc35..fcd1e0b 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -848,6 +848,7 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 	int rc;
 	struct resource res;
 	struct device_node *np = of_get_parent(lp->phy_node);
+	struct device_node *npp;
 
 	/* Don't register the MDIO bus if the phy_node or its parent node
 	 * can't be found.
@@ -856,6 +857,17 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 		dev_err(dev, "Failed to register mdio bus.\n");
 		return -ENODEV;
 	}
+	npp = of_get_parent(np);
+
+	of_address_to_resource(npp, 0, &res);
+	if (lp->ndev->mem_start != res.start) {
+		struct phy_device *phydev;
+		phydev = of_phy_find_device(lp->phy_node);
+		if (!phydev)
+			dev_info(dev,
+				 "MDIO of the phy is not registered yet\n");
+		return 0;
+	}
 
 	/* Enable the MDIO bus by asserting the enable bit in MDIO Control
 	 * register.
@@ -869,7 +881,6 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 		return -ENOMEM;
 	}
 
-	of_address_to_resource(np, 0, &res);
 	snprintf(bus->id, MII_BUS_ID_SIZE, "%.8llx",
 		 (unsigned long long)res.start);
 	bus->priv = lp;
-- 
cgit v0.10.2


From 3fb99fa7c7d2310791bf39929285da44b201fd40 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 00:28:05 +0000
Subject: net: emaclite: Let's make xemaclite_adjust_link static

xemaclite_adjust_link is used locally.
It removes sparse warning:
drivers/net/ethernet/xilinx/xilinx_emaclite.c:916:6: warning:
symbol 'xemaclite_adjust_link' was not declared. Should it be static?

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index fcd1e0b..93bb14e 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -913,7 +913,7 @@ err_register:
  * There's nothing in the Emaclite device to be configured when the link
  * state changes. We just print the status.
  */
-void xemaclite_adjust_link(struct net_device *ndev)
+static void xemaclite_adjust_link(struct net_device *ndev)
 {
 	struct net_local *lp = netdev_priv(ndev);
 	struct phy_device *phy = lp->phy_dev;
-- 
cgit v0.10.2


From 123c1407af877b9b036b852b77013a6f9f6049b0 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 00:28:06 +0000
Subject: net: emaclite: Do not use microblaze and ppc IO functions

Emaclite can be used on ARM zynq where in_be32/out_be32 IO
functions are not present. Use standard __raw_readl/__raw_writel
IO functions instead.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 93bb14e..9227ed7 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -159,34 +159,32 @@ static void xemaclite_enable_interrupts(struct net_local *drvdata)
 	u32 reg_data;
 
 	/* Enable the Tx interrupts for the first Buffer */
-	reg_data = in_be32(drvdata->base_addr + XEL_TSR_OFFSET);
-	out_be32(drvdata->base_addr + XEL_TSR_OFFSET,
-		 reg_data | XEL_TSR_XMIT_IE_MASK);
+	reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
+	__raw_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
+		     drvdata->base_addr + XEL_TSR_OFFSET);
 
 	/* Enable the Tx interrupts for the second Buffer if
 	 * configured in HW */
 	if (drvdata->tx_ping_pong != 0) {
-		reg_data = in_be32(drvdata->base_addr +
+		reg_data = __raw_readl(drvdata->base_addr +
 				   XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
-		out_be32(drvdata->base_addr + XEL_BUFFER_OFFSET +
-			 XEL_TSR_OFFSET,
-			 reg_data | XEL_TSR_XMIT_IE_MASK);
+		__raw_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
+			     drvdata->base_addr + XEL_BUFFER_OFFSET +
+			     XEL_TSR_OFFSET);
 	}
 
 	/* Enable the Rx interrupts for the first buffer */
-	out_be32(drvdata->base_addr + XEL_RSR_OFFSET,
-		 XEL_RSR_RECV_IE_MASK);
+	__raw_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
 
 	/* Enable the Rx interrupts for the second Buffer if
 	 * configured in HW */
 	if (drvdata->rx_ping_pong != 0) {
-		out_be32(drvdata->base_addr + XEL_BUFFER_OFFSET +
-			 XEL_RSR_OFFSET,
-			 XEL_RSR_RECV_IE_MASK);
+		__raw_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr +
+			     XEL_BUFFER_OFFSET + XEL_RSR_OFFSET);
 	}
 
 	/* Enable the Global Interrupt Enable */
-	out_be32(drvdata->base_addr + XEL_GIER_OFFSET, XEL_GIER_GIE_MASK);
+	__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
 }
 
 /**
@@ -201,37 +199,37 @@ static void xemaclite_disable_interrupts(struct net_local *drvdata)
 	u32 reg_data;
 
 	/* Disable the Global Interrupt Enable */
-	out_be32(drvdata->base_addr + XEL_GIER_OFFSET, XEL_GIER_GIE_MASK);
+	__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
 
 	/* Disable the Tx interrupts for the first buffer */
-	reg_data = in_be32(drvdata->base_addr + XEL_TSR_OFFSET);
-	out_be32(drvdata->base_addr + XEL_TSR_OFFSET,
-		 reg_data & (~XEL_TSR_XMIT_IE_MASK));
+	reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
+	__raw_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
+		     drvdata->base_addr + XEL_TSR_OFFSET);
 
 	/* Disable the Tx interrupts for the second Buffer
 	 * if configured in HW */
 	if (drvdata->tx_ping_pong != 0) {
-		reg_data = in_be32(drvdata->base_addr + XEL_BUFFER_OFFSET +
+		reg_data = __raw_readl(drvdata->base_addr + XEL_BUFFER_OFFSET +
 				   XEL_TSR_OFFSET);
-		out_be32(drvdata->base_addr + XEL_BUFFER_OFFSET +
-			 XEL_TSR_OFFSET,
-			 reg_data & (~XEL_TSR_XMIT_IE_MASK));
+		__raw_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
+			     drvdata->base_addr + XEL_BUFFER_OFFSET +
+			     XEL_TSR_OFFSET);
 	}
 
 	/* Disable the Rx interrupts for the first buffer */
-	reg_data = in_be32(drvdata->base_addr + XEL_RSR_OFFSET);
-	out_be32(drvdata->base_addr + XEL_RSR_OFFSET,
-		 reg_data & (~XEL_RSR_RECV_IE_MASK));
+	reg_data = __raw_readl(drvdata->base_addr + XEL_RSR_OFFSET);
+	__raw_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
+		     drvdata->base_addr + XEL_RSR_OFFSET);
 
 	/* Disable the Rx interrupts for the second buffer
 	 * if configured in HW */
 	if (drvdata->rx_ping_pong != 0) {
 
-		reg_data = in_be32(drvdata->base_addr + XEL_BUFFER_OFFSET +
+		reg_data = __raw_readl(drvdata->base_addr + XEL_BUFFER_OFFSET +
 				   XEL_RSR_OFFSET);
-		out_be32(drvdata->base_addr + XEL_BUFFER_OFFSET +
-			 XEL_RSR_OFFSET,
-			 reg_data & (~XEL_RSR_RECV_IE_MASK));
+		__raw_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
+			     drvdata->base_addr + XEL_BUFFER_OFFSET +
+			     XEL_RSR_OFFSET);
 	}
 }
 
@@ -351,7 +349,7 @@ static int xemaclite_send_data(struct net_local *drvdata, u8 *data,
 		byte_count = ETH_FRAME_LEN;
 
 	/* Check if the expected buffer is available */
-	reg_data = in_be32(addr + XEL_TSR_OFFSET);
+	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
 	if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
 	     XEL_TSR_XMIT_ACTIVE_MASK)) == 0) {
 
@@ -364,7 +362,7 @@ static int xemaclite_send_data(struct net_local *drvdata, u8 *data,
 
 		addr = (void __iomem __force *)((u32 __force)addr ^
 						 XEL_BUFFER_OFFSET);
-		reg_data = in_be32(addr + XEL_TSR_OFFSET);
+		reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
 
 		if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
 		     XEL_TSR_XMIT_ACTIVE_MASK)) != 0)
@@ -375,15 +373,16 @@ static int xemaclite_send_data(struct net_local *drvdata, u8 *data,
 	/* Write the frame to the buffer */
 	xemaclite_aligned_write(data, (u32 __force *) addr, byte_count);
 
-	out_be32(addr + XEL_TPLR_OFFSET, (byte_count & XEL_TPLR_LENGTH_MASK));
+	__raw_writel((byte_count & XEL_TPLR_LENGTH_MASK),
+		     addr + XEL_TPLR_OFFSET);
 
 	/* Update the Tx Status Register to indicate that there is a
 	 * frame to send. Set the XEL_TSR_XMIT_ACTIVE_MASK flag which
 	 * is used by the interrupt handler to check whether a frame
 	 * has been transmitted */
-	reg_data = in_be32(addr + XEL_TSR_OFFSET);
+	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
 	reg_data |= (XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_XMIT_ACTIVE_MASK);
-	out_be32(addr + XEL_TSR_OFFSET, reg_data);
+	__raw_writel(reg_data, addr + XEL_TSR_OFFSET);
 
 	return 0;
 }
@@ -408,7 +407,7 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
 	addr = (drvdata->base_addr + drvdata->next_rx_buf_to_use);
 
 	/* Verify which buffer has valid data */
-	reg_data = in_be32(addr + XEL_RSR_OFFSET);
+	reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
 
 	if ((reg_data & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
 		if (drvdata->rx_ping_pong != 0)
@@ -425,14 +424,14 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
 			return 0;	/* No data was available */
 
 		/* Verify that buffer has valid data */
-		reg_data = in_be32(addr + XEL_RSR_OFFSET);
+		reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
 		if ((reg_data & XEL_RSR_RECV_DONE_MASK) !=
 		     XEL_RSR_RECV_DONE_MASK)
 			return 0;	/* No data was available */
 	}
 
 	/* Get the protocol type of the ethernet frame that arrived */
-	proto_type = ((ntohl(in_be32(addr + XEL_HEADER_OFFSET +
+	proto_type = ((ntohl(__raw_readl(addr + XEL_HEADER_OFFSET +
 			XEL_RXBUFF_OFFSET)) >> XEL_HEADER_SHIFT) &
 			XEL_RPLR_LENGTH_MASK);
 
@@ -441,7 +440,7 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
 	if (proto_type > (ETH_FRAME_LEN + ETH_FCS_LEN)) {
 
 		if (proto_type == ETH_P_IP) {
-			length = ((ntohl(in_be32(addr +
+			length = ((ntohl(__raw_readl(addr +
 					XEL_HEADER_IP_LENGTH_OFFSET +
 					XEL_RXBUFF_OFFSET)) >>
 					XEL_HEADER_SHIFT) &
@@ -463,9 +462,9 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
 				data, length);
 
 	/* Acknowledge the frame */
-	reg_data = in_be32(addr + XEL_RSR_OFFSET);
+	reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
 	reg_data &= ~XEL_RSR_RECV_DONE_MASK;
-	out_be32(addr + XEL_RSR_OFFSET, reg_data);
+	__raw_writel(reg_data, addr + XEL_RSR_OFFSET);
 
 	return length;
 }
@@ -492,14 +491,14 @@ static void xemaclite_update_address(struct net_local *drvdata,
 
 	xemaclite_aligned_write(address_ptr, (u32 __force *) addr, ETH_ALEN);
 
-	out_be32(addr + XEL_TPLR_OFFSET, ETH_ALEN);
+	__raw_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
 
 	/* Update the MAC address in the EmacLite */
-	reg_data = in_be32(addr + XEL_TSR_OFFSET);
-	out_be32(addr + XEL_TSR_OFFSET, reg_data | XEL_TSR_PROG_MAC_ADDR);
+	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+	__raw_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
 
 	/* Wait for EmacLite to finish with the MAC address update */
-	while ((in_be32(addr + XEL_TSR_OFFSET) &
+	while ((__raw_readl(addr + XEL_TSR_OFFSET) &
 		XEL_TSR_PROG_MAC_ADDR) != 0)
 		;
 }
@@ -669,31 +668,32 @@ static irqreturn_t xemaclite_interrupt(int irq, void *dev_id)
 	u32 tx_status;
 
 	/* Check if there is Rx Data available */
-	if ((in_be32(base_addr + XEL_RSR_OFFSET) & XEL_RSR_RECV_DONE_MASK) ||
-			(in_be32(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
+	if ((__raw_readl(base_addr + XEL_RSR_OFFSET) &
+			 XEL_RSR_RECV_DONE_MASK) ||
+	    (__raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
 			 & XEL_RSR_RECV_DONE_MASK))
 
 		xemaclite_rx_handler(dev);
 
 	/* Check if the Transmission for the first buffer is completed */
-	tx_status = in_be32(base_addr + XEL_TSR_OFFSET);
+	tx_status = __raw_readl(base_addr + XEL_TSR_OFFSET);
 	if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
 		(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
 
 		tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
-		out_be32(base_addr + XEL_TSR_OFFSET, tx_status);
+		__raw_writel(tx_status, base_addr + XEL_TSR_OFFSET);
 
 		tx_complete = true;
 	}
 
 	/* Check if the Transmission for the second buffer is completed */
-	tx_status = in_be32(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
+	tx_status = __raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
 	if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
 		(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
 
 		tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
-		out_be32(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET,
-			 tx_status);
+		__raw_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
+			     XEL_TSR_OFFSET);
 
 		tx_complete = true;
 	}
@@ -726,7 +726,7 @@ static int xemaclite_mdio_wait(struct net_local *lp)
 	/* wait for the MDIO interface to not be busy or timeout
 	   after some time.
 	*/
-	while (in_be32(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
+	while (__raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
 			XEL_MDIOCTRL_MDIOSTS_MASK) {
 		if (end - jiffies <= 0) {
 			WARN_ON(1);
@@ -762,17 +762,17 @@ static int xemaclite_mdio_read(struct mii_bus *bus, int phy_id, int reg)
 	 * MDIO Address register. Set the Status bit in the MDIO Control
 	 * register to start a MDIO read transaction.
 	 */
-	ctrl_reg = in_be32(lp->base_addr + XEL_MDIOCTRL_OFFSET);
-	out_be32(lp->base_addr + XEL_MDIOADDR_OFFSET,
-		 XEL_MDIOADDR_OP_MASK |
-		 ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg));
-	out_be32(lp->base_addr + XEL_MDIOCTRL_OFFSET,
-		 ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK);
+	ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	__raw_writel(XEL_MDIOADDR_OP_MASK |
+		     ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
+		     lp->base_addr + XEL_MDIOADDR_OFFSET);
+	__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
+		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	if (xemaclite_mdio_wait(lp))
 		return -ETIMEDOUT;
 
-	rc = in_be32(lp->base_addr + XEL_MDIORD_OFFSET);
+	rc = __raw_readl(lp->base_addr + XEL_MDIORD_OFFSET);
 
 	dev_dbg(&lp->ndev->dev,
 		"xemaclite_mdio_read(phy_id=%i, reg=%x) == %x\n",
@@ -809,13 +809,13 @@ static int xemaclite_mdio_write(struct mii_bus *bus, int phy_id, int reg,
 	 * Data register. Finally, set the Status bit in the MDIO Control
 	 * register to start a MDIO write transaction.
 	 */
-	ctrl_reg = in_be32(lp->base_addr + XEL_MDIOCTRL_OFFSET);
-	out_be32(lp->base_addr + XEL_MDIOADDR_OFFSET,
-		 ~XEL_MDIOADDR_OP_MASK &
-		 ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg));
-	out_be32(lp->base_addr + XEL_MDIOWR_OFFSET, val);
-	out_be32(lp->base_addr + XEL_MDIOCTRL_OFFSET,
-		 ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK);
+	ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	__raw_writel(~XEL_MDIOADDR_OP_MASK &
+		     ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
+		     lp->base_addr + XEL_MDIOADDR_OFFSET);
+	__raw_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
+	__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
+		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	return 0;
 }
@@ -872,8 +872,8 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 	/* Enable the MDIO bus by asserting the enable bit in MDIO Control
 	 * register.
 	 */
-	out_be32(lp->base_addr + XEL_MDIOCTRL_OFFSET,
-		 XEL_MDIOCTRL_MDIOEN_MASK);
+	__raw_writel(XEL_MDIOCTRL_MDIOEN_MASK,
+		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	bus = mdiobus_alloc();
 	if (!bus) {
@@ -1197,8 +1197,8 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 		dev_warn(dev, "No MAC address found\n");
 
 	/* Clear the Tx CSR's in case this is a restart */
-	out_be32(lp->base_addr + XEL_TSR_OFFSET, 0);
-	out_be32(lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET, 0);
+	__raw_writel(0, lp->base_addr + XEL_TSR_OFFSET);
+	__raw_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
 
 	/* Set the MAC address in the EmacLite device */
 	xemaclite_update_address(lp, ndev->dev_addr);
-- 
cgit v0.10.2


From 1156ee88dd3992bbacd5e4c659530f9d18c07378 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 00:28:07 +0000
Subject: net: emaclite: Enable emaclite for Xilinx Arm Zynq platform

Enable emaclite for Xilinx ARM Zynq platform.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/Kconfig b/drivers/net/ethernet/xilinx/Kconfig
index 122d60c..7b90a5e 100644
--- a/drivers/net/ethernet/xilinx/Kconfig
+++ b/drivers/net/ethernet/xilinx/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_XILINX
 	bool "Xilinx devices"
 	default y
-	depends on PPC || PPC32 || MICROBLAZE
+	depends on PPC || PPC32 || MICROBLAZE || ARCH_ZYNQ
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
@@ -20,7 +20,7 @@ if NET_VENDOR_XILINX
 
 config XILINX_EMACLITE
 	tristate "Xilinx 10/100 Ethernet Lite support"
-	depends on (PPC32 || MICROBLAZE)
+	depends on (PPC32 || MICROBLAZE || ARCH_ZYNQ)
 	select PHYLIB
 	---help---
 	  This driver supports the 10/100 Ethernet Lite from Xilinx.
-- 
cgit v0.10.2


From 9e7c414350a6fa4e5f9b7e5f7e074fa75ba850c3 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 00:28:08 +0000
Subject: net: emaclite: Update driver header

Correct email address and years.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 9227ed7..aa14d8a 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -2,9 +2,9 @@
  * Xilinx EmacLite Linux driver for the Xilinx Ethernet MAC Lite device.
  *
  * This is a new flat driver which is based on the original emac_lite
- * driver from John Williams <john.williams@petalogix.com>.
+ * driver from John Williams <john.williams@xilinx.com>.
  *
- * 2007-2009 (c) Xilinx, Inc.
+ * 2007 - 2013 (c) Xilinx, Inc.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
-- 
cgit v0.10.2


From cec753f5dd103fcfef28c1d1c942395000abe15e Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 29 May 2013 09:32:43 +0000
Subject: net: mv643xx_eth: use phy_disconnect instead of phy_detach

Using a separated mdio bus driver with mvmdio, phy_detach on network device
removal will not stop the phy and finally lead to NULL pointer dereference
in mvmdio due to non-existent network device. Use phy_disconnect instead
to properly stop phy device from accessing network device prior removal of
the network device.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index afb8bcb..8124464 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2805,7 +2805,7 @@ static int mv643xx_eth_remove(struct platform_device *pdev)
 
 	unregister_netdev(mp->dev);
 	if (mp->phy != NULL)
-		phy_detach(mp->phy);
+		phy_disconnect(mp->phy);
 	cancel_work_sync(&mp->tx_timeout_task);
 
 	if (!IS_ERR(mp->clk))
-- 
cgit v0.10.2


From 65a6f969fd1af549111b1667d9ca857e3cc649eb Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 29 May 2013 09:32:44 +0000
Subject: net: mv643xx_eth: use managed devm_ioremap for port registers

Make use of managed devm_ioremap and remove corresponding iounmap.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 8124464..3417847 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2470,7 +2470,7 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 	if (msp == NULL)
 		return -ENOMEM;
 
-	msp->base = ioremap(res->start, resource_size(res));
+	msp->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 	if (msp->base == NULL)
 		return -ENOMEM;
 
@@ -2498,7 +2498,6 @@ static int mv643xx_eth_shared_remove(struct platform_device *pdev)
 {
 	struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev);
 
-	iounmap(msp->base);
 	if (!IS_ERR(msp->clk))
 		clk_disable_unprepare(msp->clk);
 
-- 
cgit v0.10.2


From 5f292354e7ff69afbe9a272ef997b8f3edaf860a Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 29 May 2013 09:32:45 +0000
Subject: net: mv643xx_eth: add phy_node to platform_data struct

This adds a struct device_node pointer for a phy passed by phandle
to mv643xx_eth node.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h
index 141d395..6e8215b 100644
--- a/include/linux/mv643xx_eth.h
+++ b/include/linux/mv643xx_eth.h
@@ -30,6 +30,7 @@ struct mv643xx_eth_shared_platform_data {
 #define MV643XX_ETH_PHY_ADDR(x)		(0x80 | (x))
 #define MV643XX_ETH_PHY_NONE		0xff
 
+struct device_node;
 struct mv643xx_eth_platform_data {
 	/*
 	 * Pointer back to our parent instance, and our port number.
@@ -41,6 +42,7 @@ struct mv643xx_eth_platform_data {
 	 * Whether a PHY is present, and if yes, at which address.
 	 */
 	int			phy_addr;
+	struct device_node	*phy_node;
 
 	/*
 	 * Use this MAC address if it is valid, overriding the
-- 
cgit v0.10.2


From cc9d459894b0927d3f9280b07b308cec2576ad80 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 29 May 2013 09:32:46 +0000
Subject: net: mv643xx_eth: use of_phy_connect if phy_node present

This connects to a phy node passed to the port device instead of probing
the phy by phy_addr.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 3417847..4f17d39 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -60,6 +60,7 @@
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/clk.h>
+#include <linux/of_mdio.h>
 
 static char mv643xx_eth_driver_name[] = "mv643xx_eth";
 static char mv643xx_eth_driver_version[] = "1.4";
@@ -2715,17 +2716,27 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 	netif_set_real_num_tx_queues(dev, mp->txq_count);
 	netif_set_real_num_rx_queues(dev, mp->rxq_count);
 
-	if (pd->phy_addr != MV643XX_ETH_PHY_NONE) {
+	err = 0;
+	if (pd->phy_node) {
+		mp->phy = of_phy_connect(mp->dev, pd->phy_node,
+					 mv643xx_eth_adjust_link, 0,
+					 PHY_INTERFACE_MODE_GMII);
+		if (!mp->phy)
+			err = -ENODEV;
+	} else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) {
 		mp->phy = phy_scan(mp, pd->phy_addr);
 
-		if (IS_ERR(mp->phy)) {
+		if (IS_ERR(mp->phy))
 			err = PTR_ERR(mp->phy);
-			if (err == -ENODEV)
-				err = -EPROBE_DEFER;
-			goto out;
-		}
-		phy_init(mp, pd->speed, pd->duplex);
+		else
+			phy_init(mp, pd->speed, pd->duplex);
 	}
+	if (err == -ENODEV) {
+		err = -EPROBE_DEFER;
+		goto out;
+	}
+	if (err)
+		goto out;
 
 	SET_ETHTOOL_OPS(dev, &mv643xx_eth_ethtool_ops);
 
-- 
cgit v0.10.2


From cb85215ffc34479188d0ec25a56352f05ad672ce Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 29 May 2013 09:32:47 +0000
Subject: net: mv643xx_eth: proper initialization for Kirkwood SoCs

Ethernet controllers found on Kirkwood SoCs not only suffer from loosing
MAC address register contents on clock gating but also some important
registers are reset to values that would break ethernet. This patch
clears the CLK125_BYPASS_EN bit for DT enabled Kirkwood only by using
of_device_is_compatible() instead of #ifdefs. Non-DT Kirkwood is not
affected as it installs a clock gating workaround because of the MAC
address issue above. Other Orion SoCs do not suffer from register reset,
do not have the bit in question, or do not have the register at all.
Moreover, system controllers on PPC using this driver should also be
protected from clearing that bit.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 4f17d39..1b31d75 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -116,6 +116,8 @@ static char mv643xx_eth_driver_version[] = "1.4";
 #define  LINK_UP			0x00000002
 #define TXQ_COMMAND			0x0048
 #define TXQ_FIX_PRIO_CONF		0x004c
+#define PORT_SERIAL_CONTROL1		0x004c
+#define  CLK125_BYPASS_EN		0x00000010
 #define TX_BW_RATE			0x0050
 #define TX_BW_MTU			0x0058
 #define TX_BW_BURST			0x005c
@@ -2701,6 +2703,15 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 
 	mp->dev = dev;
 
+	/* Kirkwood resets some registers on gated clocks. Especially
+	 * CLK125_BYPASS_EN must be cleared but is not available on
+	 * all other SoCs/System Controllers using this driver.
+	 */
+	if (of_device_is_compatible(pdev->dev.of_node,
+				    "marvell,kirkwood-eth-port"))
+		wrlp(mp, PORT_SERIAL_CONTROL1,
+		     rdlp(mp, PORT_SERIAL_CONTROL1) & ~CLK125_BYPASS_EN);
+
 	/*
 	 * Start with a default rate, and if there is a clock, allow
 	 * it to override the default.
-- 
cgit v0.10.2


From 76723bca2802eb80990a5fefa179662e2e561d66 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 29 May 2013 09:32:48 +0000
Subject: net: mv643xx_eth: add DT parsing support

This adds device tree parsing support for the shared driver of mv643xx_eth.
As the bindings are slightly different from current PPC bindings new binding
documentation is also added. Following PPC-style device setup, the shared
driver now also adds port platform_devices and sets up port platform_data.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/marvell-orion-net.txt b/Documentation/devicetree/bindings/net/marvell-orion-net.txt
new file mode 100644
index 0000000..a73b79f
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/marvell-orion-net.txt
@@ -0,0 +1,85 @@
+Marvell Orion/Discovery ethernet controller
+=============================================
+
+The Marvell Discovery ethernet controller can be found on Marvell Orion SoCs
+(Kirkwood, Dove, Orion5x, and Discovery Innovation) and as part of Marvell
+Discovery system controller chips (mv64[345]60).
+
+The Discovery ethernet controller is described with two levels of nodes. The
+first level describes the ethernet controller itself and the second level
+describes up to 3 ethernet port nodes within that controller. The reason for
+the multiple levels is that the port registers are interleaved within a single
+set of controller registers. Each port node describes port-specific properties.
+
+Note: The above separation is only true for Discovery system controllers.
+For Orion SoCs we stick to the separation, although there each controller has
+only one port associated. Multiple ports are implemented as multiple single-port
+controllers. As Kirkwood has some issues with proper initialization after reset,
+an extra compatible string is added for it.
+
+* Ethernet controller node
+
+Required controller properties:
+ - #address-cells: shall be 1.
+ - #size-cells: shall be 0.
+ - compatible: shall be one of "marvell,orion-eth", "marvell,kirkwood-eth".
+ - reg: address and length of the controller registers.
+
+Optional controller properties:
+ - clocks: phandle reference to the controller clock.
+ - marvell,tx-checksum-limit: max tx packet size for hardware checksum.
+
+* Ethernet port node
+
+Required port properties:
+ - device_type: shall be "network".
+ - compatible: shall be one of "marvell,orion-eth-port",
+      "marvell,kirkwood-eth-port".
+ - reg: port number relative to ethernet controller, shall be 0, 1, or 2.
+ - interrupts: port interrupt.
+ - local-mac-address: 6 bytes MAC address.
+
+Optional port properties:
+ - marvell,tx-queue-size: size of the transmit ring buffer.
+ - marvell,tx-sram-addr: address of transmit descriptor buffer located in SRAM.
+ - marvell,tx-sram-size: size of transmit descriptor buffer located in SRAM.
+ - marvell,rx-queue-size: size of the receive ring buffer.
+ - marvell,rx-sram-addr: address of receive descriptor buffer located in SRAM.
+ - marvell,rx-sram-size: size of receive descriptor buffer located in SRAM.
+
+and
+
+ - phy-handle: phandle reference to ethernet PHY.
+
+or
+
+ - speed: port speed if no PHY connected.
+ - duplex: port mode if no PHY connected.
+
+* Node example:
+
+mdio-bus {
+	...
+	ethphy: ethernet-phy@8 {
+		device_type = "ethernet-phy";
+		...
+	};
+};
+
+eth: ethernet-controller@72000 {
+	compatible = "marvell,orion-eth";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	reg = <0x72000 0x2000>;
+	clocks = <&gate_clk 2>;
+	marvell,tx-checksum-limit = <1600>;
+
+	ethernet@0 {
+		device_type = "network";
+		compatible = "marvell,orion-eth-port";
+		reg = <0>;
+		interrupts = <29>;
+		phy-handle = <&ethphy>;
+		local-mac-address = [00 00 00 00 00 00];
+	};
+};
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 1b31d75..23ea7b6 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -60,6 +60,9 @@
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_net.h>
 #include <linux/of_mdio.h>
 
 static char mv643xx_eth_driver_name[] = "mv643xx_eth";
@@ -2453,13 +2456,148 @@ static void infer_hw_params(struct mv643xx_eth_shared_private *msp)
 	}
 }
 
+#if defined(CONFIG_OF)
+static const struct of_device_id mv643xx_eth_shared_ids[] = {
+	{ .compatible = "marvell,orion-eth", },
+	{ .compatible = "marvell,kirkwood-eth", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, mv643xx_eth_shared_ids);
+#endif
+
+#if defined(CONFIG_OF) && !defined(CONFIG_MV64X60)
+#define mv643xx_eth_property(_np, _name, _v)				\
+	do {								\
+		u32 tmp;						\
+		if (!of_property_read_u32(_np, "marvell," _name, &tmp))	\
+			_v = tmp;					\
+	} while (0)
+
+static struct platform_device *port_platdev[3];
+
+static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
+					  struct device_node *pnp)
+{
+	struct platform_device *ppdev;
+	struct mv643xx_eth_platform_data ppd;
+	struct resource res;
+	const char *mac_addr;
+	int ret;
+
+	memset(&ppd, 0, sizeof(ppd));
+	ppd.shared = pdev;
+
+	memset(&res, 0, sizeof(res));
+	if (!of_irq_to_resource(pnp, 0, &res)) {
+		dev_err(&pdev->dev, "missing interrupt on %s\n", pnp->name);
+		return -EINVAL;
+	}
+
+	if (of_property_read_u32(pnp, "reg", &ppd.port_number)) {
+		dev_err(&pdev->dev, "missing reg property on %s\n", pnp->name);
+		return -EINVAL;
+	}
+
+	if (ppd.port_number >= 3) {
+		dev_err(&pdev->dev, "invalid reg property on %s\n", pnp->name);
+		return -EINVAL;
+	}
+
+	mac_addr = of_get_mac_address(pnp);
+	if (mac_addr)
+		memcpy(ppd.mac_addr, mac_addr, 6);
+
+	mv643xx_eth_property(pnp, "tx-queue-size", ppd.tx_queue_size);
+	mv643xx_eth_property(pnp, "tx-sram-addr", ppd.tx_sram_addr);
+	mv643xx_eth_property(pnp, "tx-sram-size", ppd.tx_sram_size);
+	mv643xx_eth_property(pnp, "rx-queue-size", ppd.rx_queue_size);
+	mv643xx_eth_property(pnp, "rx-sram-addr", ppd.rx_sram_addr);
+	mv643xx_eth_property(pnp, "rx-sram-size", ppd.rx_sram_size);
+
+	ppd.phy_node = of_parse_phandle(pnp, "phy-handle", 0);
+	if (!ppd.phy_node) {
+		ppd.phy_addr = MV643XX_ETH_PHY_NONE;
+		of_property_read_u32(pnp, "speed", &ppd.speed);
+		of_property_read_u32(pnp, "duplex", &ppd.duplex);
+	}
+
+	ppdev = platform_device_alloc(MV643XX_ETH_NAME, ppd.port_number);
+	if (!ppdev)
+		return -ENOMEM;
+	ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+
+	ret = platform_device_add_resources(ppdev, &res, 1);
+	if (ret)
+		goto port_err;
+
+	ret = platform_device_add_data(ppdev, &ppd, sizeof(ppd));
+	if (ret)
+		goto port_err;
+
+	ret = platform_device_add(ppdev);
+	if (ret)
+		goto port_err;
+
+	port_platdev[ppd.port_number] = ppdev;
+
+	return 0;
+
+port_err:
+	platform_device_put(ppdev);
+	return ret;
+}
+
+static int mv643xx_eth_shared_of_probe(struct platform_device *pdev)
+{
+	struct mv643xx_eth_shared_platform_data *pd;
+	struct device_node *pnp, *np = pdev->dev.of_node;
+	int ret;
+
+	/* bail out if not registered from DT */
+	if (!np)
+		return 0;
+
+	pd = devm_kzalloc(&pdev->dev, sizeof(*pd), GFP_KERNEL);
+	if (!pd)
+		return -ENOMEM;
+	pdev->dev.platform_data = pd;
+
+	mv643xx_eth_property(np, "tx-checksum-limit", pd->tx_csum_limit);
+
+	for_each_available_child_of_node(np, pnp) {
+		ret = mv643xx_eth_shared_of_add_port(pdev, pnp);
+		if (ret)
+			return ret;
+	}
+	return 0;
+}
+
+static void mv643xx_eth_shared_of_remove(void)
+{
+	int n;
+
+	for (n = 0; n < 3; n++) {
+		platform_device_del(port_platdev[n]);
+		port_platdev[n] = NULL;
+	}
+}
+#else
+static int mv643xx_eth_shared_of_probe(struct platform_device *pdev)
+{
+	return 0
+}
+
+#define mv643xx_eth_shared_of_remove()
+#endif
+
 static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 {
 	static int mv643xx_eth_version_printed;
-	struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data;
+	struct mv643xx_eth_shared_platform_data *pd;
 	struct mv643xx_eth_shared_private *msp;
 	const struct mbus_dram_target_info *dram;
 	struct resource *res;
+	int ret;
 
 	if (!mv643xx_eth_version_printed++)
 		pr_notice("MV-643xx 10/100/1000 ethernet driver version %s\n",
@@ -2472,6 +2610,7 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 	msp = devm_kzalloc(&pdev->dev, sizeof(*msp), GFP_KERNEL);
 	if (msp == NULL)
 		return -ENOMEM;
+	platform_set_drvdata(pdev, msp);
 
 	msp->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 	if (msp->base == NULL)
@@ -2488,12 +2627,15 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 	if (dram)
 		mv643xx_eth_conf_mbus_windows(msp, dram);
 
+	ret = mv643xx_eth_shared_of_probe(pdev);
+	if (ret)
+		return ret;
+	pd = pdev->dev.platform_data;
+
 	msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ?
 					pd->tx_csum_limit : 9 * 1024;
 	infer_hw_params(msp);
 
-	platform_set_drvdata(pdev, msp);
-
 	return 0;
 }
 
@@ -2501,9 +2643,9 @@ static int mv643xx_eth_shared_remove(struct platform_device *pdev)
 {
 	struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev);
 
+	mv643xx_eth_shared_of_remove();
 	if (!IS_ERR(msp->clk))
 		clk_disable_unprepare(msp->clk);
-
 	return 0;
 }
 
@@ -2513,6 +2655,7 @@ static struct platform_driver mv643xx_eth_shared_driver = {
 	.driver = {
 		.name	= MV643XX_ETH_SHARED_NAME,
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(mv643xx_eth_shared_ids),
 	},
 };
 
@@ -2721,6 +2864,8 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 	if (!IS_ERR(mp->clk)) {
 		clk_prepare_enable(mp->clk);
 		mp->t_clk = clk_get_rate(mp->clk);
+	} else if (!IS_ERR(mp->shared->clk)) {
+		mp->t_clk = clk_get_rate(mp->shared->clk);
 	}
 
 	set_params(mp, pd);
-- 
cgit v0.10.2


From 6804973ffb4288bba14d53223e2fbb2bbd1d2e1b Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Wed, 29 May 2013 14:20:11 +0000
Subject: tcp: consolidate PRR packet accounting

This patch series fixes an undo bug in fast recovery: the sender
mistakenly undos the cwnd too early but continues fast retransmits
until all pending data are acked. This also multiplies the SNMP
stat PARTIALUNDO events by the degree of the network reordering.

The first patch prepares the fix by consolidating the accounting
of newly_acked_sacked in tcp_cwnd_reduction(), instead of updating
newly_acked_sacked everytime sacked_out is adjusted.  Also pass
acked and prior_unsacked as const type because they are readonly
in the rest of recovery processing.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 9579e1a..86b5fa7 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2430,12 +2430,14 @@ static void tcp_init_cwnd_reduction(struct sock *sk, const bool set_ssthresh)
 	TCP_ECN_queue_cwr(tp);
 }
 
-static void tcp_cwnd_reduction(struct sock *sk, int newly_acked_sacked,
+static void tcp_cwnd_reduction(struct sock *sk, const int prior_unsacked,
 			       int fast_rexmit)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	int sndcnt = 0;
 	int delta = tp->snd_ssthresh - tcp_packets_in_flight(tp);
+	int newly_acked_sacked = prior_unsacked -
+				 (tp->packets_out - tp->sacked_out);
 
 	tp->prr_delivered += newly_acked_sacked;
 	if (tcp_packets_in_flight(tp) > tp->snd_ssthresh) {
@@ -2492,7 +2494,7 @@ static void tcp_try_keep_open(struct sock *sk)
 	}
 }
 
-static void tcp_try_to_open(struct sock *sk, int flag, int newly_acked_sacked)
+static void tcp_try_to_open(struct sock *sk, int flag, const int prior_unsacked)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -2509,7 +2511,7 @@ static void tcp_try_to_open(struct sock *sk, int flag, int newly_acked_sacked)
 		if (inet_csk(sk)->icsk_ca_state != TCP_CA_Open)
 			tcp_moderate_cwnd(tp);
 	} else {
-		tcp_cwnd_reduction(sk, newly_acked_sacked, 0);
+		tcp_cwnd_reduction(sk, prior_unsacked, 0);
 	}
 }
 
@@ -2678,15 +2680,14 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack)
  * It does _not_ decide what to send, it is made in function
  * tcp_xmit_retransmit_queue().
  */
-static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked,
-				  int prior_sacked, int prior_packets,
+static void tcp_fastretrans_alert(struct sock *sk, const int acked,
+				  const int prior_unsacked,
 				  bool is_dupack, int flag)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
 	int do_lost = is_dupack || ((flag & FLAG_DATA_SACKED) &&
 				    (tcp_fackets_out(tp) > tp->reordering));
-	int newly_acked_sacked = 0;
 	int fast_rexmit = 0;
 
 	if (WARN_ON(!tp->packets_out && tp->sacked_out))
@@ -2739,9 +2740,7 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked,
 			if (tcp_is_reno(tp) && is_dupack)
 				tcp_add_reno_sack(sk);
 		} else
-			do_lost = tcp_try_undo_partial(sk, pkts_acked);
-		newly_acked_sacked = prior_packets - tp->packets_out +
-				     tp->sacked_out - prior_sacked;
+			do_lost = tcp_try_undo_partial(sk, acked);
 		break;
 	case TCP_CA_Loss:
 		tcp_process_loss(sk, flag, is_dupack);
@@ -2755,14 +2754,12 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked,
 			if (is_dupack)
 				tcp_add_reno_sack(sk);
 		}
-		newly_acked_sacked = prior_packets - tp->packets_out +
-				     tp->sacked_out - prior_sacked;
 
 		if (icsk->icsk_ca_state <= TCP_CA_Disorder)
 			tcp_try_undo_dsack(sk);
 
 		if (!tcp_time_to_recover(sk, flag)) {
-			tcp_try_to_open(sk, flag, newly_acked_sacked);
+			tcp_try_to_open(sk, flag, prior_unsacked);
 			return;
 		}
 
@@ -2784,7 +2781,7 @@ static void tcp_fastretrans_alert(struct sock *sk, int pkts_acked,
 
 	if (do_lost)
 		tcp_update_scoreboard(sk, fast_rexmit);
-	tcp_cwnd_reduction(sk, newly_acked_sacked, fast_rexmit);
+	tcp_cwnd_reduction(sk, prior_unsacked, fast_rexmit);
 	tcp_xmit_retransmit_queue(sk);
 }
 
@@ -3268,9 +3265,8 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 	u32 prior_in_flight;
 	u32 prior_fackets;
 	int prior_packets = tp->packets_out;
-	int prior_sacked = tp->sacked_out;
-	int pkts_acked = 0;
-	int previous_packets_out = 0;
+	const int prior_unsacked = tp->packets_out - tp->sacked_out;
+	int acked = 0; /* Number of packets newly acked */
 
 	/* If the ack is older than previous acks
 	 * then we can probably ignore it.
@@ -3345,18 +3341,17 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 		goto no_queue;
 
 	/* See if we can take anything off of the retransmit queue. */
-	previous_packets_out = tp->packets_out;
+	acked = tp->packets_out;
 	flag |= tcp_clean_rtx_queue(sk, prior_fackets, prior_snd_una);
-
-	pkts_acked = previous_packets_out - tp->packets_out;
+	acked -= tp->packets_out;
 
 	if (tcp_ack_is_dubious(sk, flag)) {
 		/* Advance CWND, if state allows this. */
 		if ((flag & FLAG_DATA_ACKED) && tcp_may_raise_cwnd(sk, flag))
 			tcp_cong_avoid(sk, ack, prior_in_flight);
 		is_dupack = !(flag & (FLAG_SND_UNA_ADVANCED | FLAG_NOT_DUP));
-		tcp_fastretrans_alert(sk, pkts_acked, prior_sacked,
-				      prior_packets, is_dupack, flag);
+		tcp_fastretrans_alert(sk, acked, prior_unsacked,
+				      is_dupack, flag);
 	} else {
 		if (flag & FLAG_DATA_ACKED)
 			tcp_cong_avoid(sk, ack, prior_in_flight);
@@ -3378,8 +3373,8 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 no_queue:
 	/* If data was DSACKed, see if we can undo a cwnd reduction. */
 	if (flag & FLAG_DSACKING_ACK)
-		tcp_fastretrans_alert(sk, pkts_acked, prior_sacked,
-				      prior_packets, is_dupack, flag);
+		tcp_fastretrans_alert(sk, acked, prior_unsacked,
+				      is_dupack, flag);
 	/* If this ack opens up a zero window, clear backoff.  It was
 	 * being used to time the probes, and is probably far higher than
 	 * it needs to be for normal retransmission.
@@ -3401,8 +3396,8 @@ old_ack:
 	 */
 	if (TCP_SKB_CB(skb)->sacked) {
 		flag |= tcp_sacktag_write_queue(sk, skb, prior_snd_una);
-		tcp_fastretrans_alert(sk, pkts_acked, prior_sacked,
-				      prior_packets, is_dupack, flag);
+		tcp_fastretrans_alert(sk, acked, prior_unsacked,
+				      is_dupack, flag);
 	}
 
 	SOCK_DEBUG(sk, "Ack %u before %u:%u\n", ack, tp->snd_una, tp->snd_nxt);
-- 
cgit v0.10.2


From 6a63df46a7363833a0dc0c431027f522b3487972 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Wed, 29 May 2013 14:20:12 +0000
Subject: tcp: refactor undo functions

Refactor and relocate various functions or variables to prepare the
undo fix.  Remove some unused function arguments. Rename tcp_undo_cwr
to tcp_undo_cwnd_reduction to be consistent with the rest of
CWR related function names.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 86b5fa7..fcb668d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2243,10 +2243,23 @@ static void DBGUNDO(struct sock *sk, const char *msg)
 #define DBGUNDO(x...) do { } while (0)
 #endif
 
-static void tcp_undo_cwr(struct sock *sk, const bool undo_ssthresh)
+static void tcp_undo_cwnd_reduction(struct sock *sk, const bool undo_ssthresh,
+				    bool unmark_loss)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
+	if (unmark_loss) {
+		struct sk_buff *skb;
+
+		tcp_for_write_queue(skb, sk) {
+			if (skb == tcp_send_head(sk))
+				break;
+			TCP_SKB_CB(skb)->sacked &= ~TCPCB_LOST;
+		}
+		tp->lost_out = 0;
+		tcp_clear_all_retrans_hints(tp);
+	}
+
 	if (tp->prior_ssthresh) {
 		const struct inet_connection_sock *icsk = inet_csk(sk);
 
@@ -2263,6 +2276,9 @@ static void tcp_undo_cwr(struct sock *sk, const bool undo_ssthresh)
 		tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh);
 	}
 	tp->snd_cwnd_stamp = tcp_time_stamp;
+
+	if (undo_ssthresh)
+		tp->undo_marker = 0;
 }
 
 static inline bool tcp_may_undo(const struct tcp_sock *tp)
@@ -2282,14 +2298,13 @@ static bool tcp_try_undo_recovery(struct sock *sk)
 		 * or our original transmission succeeded.
 		 */
 		DBGUNDO(sk, inet_csk(sk)->icsk_ca_state == TCP_CA_Loss ? "loss" : "retrans");
-		tcp_undo_cwr(sk, true);
+		tcp_undo_cwnd_reduction(sk, true, false);
 		if (inet_csk(sk)->icsk_ca_state == TCP_CA_Loss)
 			mib_idx = LINUX_MIB_TCPLOSSUNDO;
 		else
 			mib_idx = LINUX_MIB_TCPFULLUNDO;
 
 		NET_INC_STATS_BH(sock_net(sk), mib_idx);
-		tp->undo_marker = 0;
 	}
 	if (tp->snd_una == tp->high_seq && tcp_is_reno(tp)) {
 		/* Hold old state until something *above* high_seq
@@ -2309,8 +2324,7 @@ static void tcp_try_undo_dsack(struct sock *sk)
 
 	if (tp->undo_marker && !tp->undo_retrans) {
 		DBGUNDO(sk, "D-SACK");
-		tcp_undo_cwr(sk, true);
-		tp->undo_marker = 0;
+		tcp_undo_cwnd_reduction(sk, true, false);
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDSACKUNDO);
 	}
 }
@@ -2344,60 +2358,20 @@ static bool tcp_any_retrans_done(const struct sock *sk)
 	return false;
 }
 
-/* Undo during fast recovery after partial ACK. */
-
-static int tcp_try_undo_partial(struct sock *sk, int acked)
-{
-	struct tcp_sock *tp = tcp_sk(sk);
-	/* Partial ACK arrived. Force Hoe's retransmit. */
-	int failed = tcp_is_reno(tp) || (tcp_fackets_out(tp) > tp->reordering);
-
-	if (tcp_may_undo(tp)) {
-		/* Plain luck! Hole if filled with delayed
-		 * packet, rather than with a retransmit.
-		 */
-		if (!tcp_any_retrans_done(sk))
-			tp->retrans_stamp = 0;
-
-		tcp_update_reordering(sk, tcp_fackets_out(tp) + acked, 1);
-
-		DBGUNDO(sk, "Hoe");
-		tcp_undo_cwr(sk, false);
-		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPPARTIALUNDO);
-
-		/* So... Do not make Hoe's retransmit yet.
-		 * If the first packet was delayed, the rest
-		 * ones are most probably delayed as well.
-		 */
-		failed = 0;
-	}
-	return failed;
-}
-
 /* Undo during loss recovery after partial ACK or using F-RTO. */
 static bool tcp_try_undo_loss(struct sock *sk, bool frto_undo)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	if (frto_undo || tcp_may_undo(tp)) {
-		struct sk_buff *skb;
-		tcp_for_write_queue(skb, sk) {
-			if (skb == tcp_send_head(sk))
-				break;
-			TCP_SKB_CB(skb)->sacked &= ~TCPCB_LOST;
-		}
-
-		tcp_clear_all_retrans_hints(tp);
+		tcp_undo_cwnd_reduction(sk, true, true);
 
 		DBGUNDO(sk, "partial loss");
-		tp->lost_out = 0;
-		tcp_undo_cwr(sk, true);
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPLOSSUNDO);
 		if (frto_undo)
 			NET_INC_STATS_BH(sock_net(sk),
 					 LINUX_MIB_TCPSPURIOUSRTOS);
 		inet_csk(sk)->icsk_retransmits = 0;
-		tp->undo_marker = 0;
 		if (frto_undo || tcp_is_sack(tp))
 			tcp_set_ca_state(sk, TCP_CA_Open);
 		return true;
@@ -2669,6 +2643,35 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack)
 	tcp_xmit_retransmit_queue(sk);
 }
 
+/* Undo during fast recovery after partial ACK. */
+static bool tcp_try_undo_partial(struct sock *sk, int acked)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	/* Partial ACK arrived. Force Hoe's retransmit. */
+	bool failed = tcp_is_reno(tp) || (tcp_fackets_out(tp) > tp->reordering);
+
+	if (tcp_may_undo(tp)) {
+		/* Plain luck! Hole if filled with delayed
+		 * packet, rather than with a retransmit.
+		 */
+		if (!tcp_any_retrans_done(sk))
+			tp->retrans_stamp = 0;
+
+		tcp_update_reordering(sk, tcp_fackets_out(tp) + acked, 1);
+
+		DBGUNDO(sk, "Hoe");
+		tcp_undo_cwnd_reduction(sk, false, false);
+		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPPARTIALUNDO);
+
+		/* So... Do not make Hoe's retransmit yet.
+		 * If the first packet was delayed, the rest
+		 * ones are most probably delayed as well.
+		 */
+		failed = false;
+	}
+	return failed;
+}
+
 /* Process an event, which can update packets-in-flight not trivially.
  * Main goal of this function is to calculate new estimate for left_out,
  * taking into account both packets sitting in receiver's buffer and
@@ -2686,7 +2689,7 @@ static void tcp_fastretrans_alert(struct sock *sk, const int acked,
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
-	int do_lost = is_dupack || ((flag & FLAG_DATA_SACKED) &&
+	bool do_lost = is_dupack || ((flag & FLAG_DATA_SACKED) &&
 				    (tcp_fackets_out(tp) > tp->reordering));
 	int fast_rexmit = 0;
 
-- 
cgit v0.10.2


From 7026b912f97d912476dff5465ed9a127be094208 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Wed, 29 May 2013 14:20:13 +0000
Subject: tcp: fix undo on partial ack in recovery

Upon detecting spurious fast retransmit via timestamps during recovery,
use PRR to clock out new data packet instead of retransmission. Once
all retransmission are proven spurious, the sender then reverts the
cwnd reduction and congestion state to open or disorder.

The current code does the opposite: it undoes cwnd as soon as any
retransmission is spurious and continues to retransmit until all
data are acked. This nullifies the point to undo the cwnd because
the sender is still retransmistting spuriously. This patch fixes
it. The undo_ssthresh argument of tcp_undo_cwnd_reductiuon() is no
longer needed and is removed.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index fcb668d..c35b227 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2243,8 +2243,7 @@ static void DBGUNDO(struct sock *sk, const char *msg)
 #define DBGUNDO(x...) do { } while (0)
 #endif
 
-static void tcp_undo_cwnd_reduction(struct sock *sk, const bool undo_ssthresh,
-				    bool unmark_loss)
+static void tcp_undo_cwnd_reduction(struct sock *sk, bool unmark_loss)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -2268,7 +2267,7 @@ static void tcp_undo_cwnd_reduction(struct sock *sk, const bool undo_ssthresh,
 		else
 			tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh << 1);
 
-		if (undo_ssthresh && tp->prior_ssthresh > tp->snd_ssthresh) {
+		if (tp->prior_ssthresh > tp->snd_ssthresh) {
 			tp->snd_ssthresh = tp->prior_ssthresh;
 			TCP_ECN_withdraw_cwr(tp);
 		}
@@ -2276,9 +2275,7 @@ static void tcp_undo_cwnd_reduction(struct sock *sk, const bool undo_ssthresh,
 		tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh);
 	}
 	tp->snd_cwnd_stamp = tcp_time_stamp;
-
-	if (undo_ssthresh)
-		tp->undo_marker = 0;
+	tp->undo_marker = 0;
 }
 
 static inline bool tcp_may_undo(const struct tcp_sock *tp)
@@ -2298,7 +2295,7 @@ static bool tcp_try_undo_recovery(struct sock *sk)
 		 * or our original transmission succeeded.
 		 */
 		DBGUNDO(sk, inet_csk(sk)->icsk_ca_state == TCP_CA_Loss ? "loss" : "retrans");
-		tcp_undo_cwnd_reduction(sk, true, false);
+		tcp_undo_cwnd_reduction(sk, false);
 		if (inet_csk(sk)->icsk_ca_state == TCP_CA_Loss)
 			mib_idx = LINUX_MIB_TCPLOSSUNDO;
 		else
@@ -2324,7 +2321,7 @@ static void tcp_try_undo_dsack(struct sock *sk)
 
 	if (tp->undo_marker && !tp->undo_retrans) {
 		DBGUNDO(sk, "D-SACK");
-		tcp_undo_cwnd_reduction(sk, true, false);
+		tcp_undo_cwnd_reduction(sk, false);
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDSACKUNDO);
 	}
 }
@@ -2364,7 +2361,7 @@ static bool tcp_try_undo_loss(struct sock *sk, bool frto_undo)
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	if (frto_undo || tcp_may_undo(tp)) {
-		tcp_undo_cwnd_reduction(sk, true, true);
+		tcp_undo_cwnd_reduction(sk, true);
 
 		DBGUNDO(sk, "partial loss");
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPLOSSUNDO);
@@ -2644,32 +2641,37 @@ static void tcp_process_loss(struct sock *sk, int flag, bool is_dupack)
 }
 
 /* Undo during fast recovery after partial ACK. */
-static bool tcp_try_undo_partial(struct sock *sk, int acked)
+static bool tcp_try_undo_partial(struct sock *sk, const int acked,
+				 const int prior_unsacked)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
-	/* Partial ACK arrived. Force Hoe's retransmit. */
-	bool failed = tcp_is_reno(tp) || (tcp_fackets_out(tp) > tp->reordering);
 
-	if (tcp_may_undo(tp)) {
+	if (tp->undo_marker && tcp_packet_delayed(tp)) {
 		/* Plain luck! Hole if filled with delayed
 		 * packet, rather than with a retransmit.
 		 */
+		tcp_update_reordering(sk, tcp_fackets_out(tp) + acked, 1);
+
+		/* We are getting evidence that the reordering degree is higher
+		 * than we realized. If there are no retransmits out then we
+		 * can undo. Otherwise we clock out new packets but do not
+		 * mark more packets lost or retransmit more.
+		 */
+		if (tp->retrans_out) {
+			tcp_cwnd_reduction(sk, prior_unsacked, 0);
+			return true;
+		}
+
 		if (!tcp_any_retrans_done(sk))
 			tp->retrans_stamp = 0;
 
-		tcp_update_reordering(sk, tcp_fackets_out(tp) + acked, 1);
-
-		DBGUNDO(sk, "Hoe");
-		tcp_undo_cwnd_reduction(sk, false, false);
+		DBGUNDO(sk, "partial recovery");
+		tcp_undo_cwnd_reduction(sk, true);
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPPARTIALUNDO);
-
-		/* So... Do not make Hoe's retransmit yet.
-		 * If the first packet was delayed, the rest
-		 * ones are most probably delayed as well.
-		 */
-		failed = false;
+		tcp_try_keep_open(sk);
+		return true;
 	}
-	return failed;
+	return false;
 }
 
 /* Process an event, which can update packets-in-flight not trivially.
@@ -2742,8 +2744,13 @@ static void tcp_fastretrans_alert(struct sock *sk, const int acked,
 		if (!(flag & FLAG_SND_UNA_ADVANCED)) {
 			if (tcp_is_reno(tp) && is_dupack)
 				tcp_add_reno_sack(sk);
-		} else
-			do_lost = tcp_try_undo_partial(sk, acked);
+		} else {
+			if (tcp_try_undo_partial(sk, acked, prior_unsacked))
+				return;
+			/* Partial ACK arrived. Force fast retransmit. */
+			do_lost = tcp_is_reno(tp) ||
+				  tcp_fackets_out(tp) > tp->reordering;
+		}
 		break;
 	case TCP_CA_Loss:
 		tcp_process_loss(sk, flag, is_dupack);
-- 
cgit v0.10.2


From c7d9d6a185a7ea383b719b79c428d34ec1470275 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Wed, 29 May 2013 14:20:14 +0000
Subject: tcp: undo on DSACK during recovery

If the receiver supports DSACK, sender can detect false recoveries and
revert cwnd reductions triggered by either severe network reordering or
concurrent reordering and loss event.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c35b227..907311c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2315,7 +2315,7 @@ static bool tcp_try_undo_recovery(struct sock *sk)
 }
 
 /* Try to undo cwnd reduction, because D-SACKs acked all retransmitted data */
-static void tcp_try_undo_dsack(struct sock *sk)
+static bool tcp_try_undo_dsack(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -2323,7 +2323,9 @@ static void tcp_try_undo_dsack(struct sock *sk)
 		DBGUNDO(sk, "D-SACK");
 		tcp_undo_cwnd_reduction(sk, false);
 		NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPDSACKUNDO);
+		return true;
 	}
+	return false;
 }
 
 /* We can clear retrans_stamp when there are no retransmissions in the
@@ -2751,6 +2753,10 @@ static void tcp_fastretrans_alert(struct sock *sk, const int acked,
 			do_lost = tcp_is_reno(tp) ||
 				  tcp_fackets_out(tp) > tp->reordering;
 		}
+		if (tcp_try_undo_dsack(sk)) {
+			tcp_try_keep_open(sk);
+			return;
+		}
 		break;
 	case TCP_CA_Loss:
 		tcp_process_loss(sk, flag, is_dupack);
-- 
cgit v0.10.2


From 2a8626d1efaf031a65157bc99a01bb93b52a92d7 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 20:08:23 +0000
Subject: phy: Clean coding style in vitesse phy

- Remove trailing white space
- Remove spaces before tag
- Fix comments

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 3492b53..d6e988f 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -44,12 +44,12 @@
 #define MII_VSC8244_ISTAT_DUPLEX	0x1000
 
 /* Vitesse Auxiliary Control/Status Register */
-#define MII_VSC8244_AUX_CONSTAT        	0x1c
-#define MII_VSC8244_AUXCONSTAT_INIT    	0x0000
-#define MII_VSC8244_AUXCONSTAT_DUPLEX  	0x0020
-#define MII_VSC8244_AUXCONSTAT_SPEED   	0x0018
-#define MII_VSC8244_AUXCONSTAT_GBIT    	0x0010
-#define MII_VSC8244_AUXCONSTAT_100     	0x0008
+#define MII_VSC8244_AUX_CONSTAT		0x1c
+#define MII_VSC8244_AUXCONSTAT_INIT	0x0000
+#define MII_VSC8244_AUXCONSTAT_DUPLEX	0x0020
+#define MII_VSC8244_AUXCONSTAT_SPEED	0x0018
+#define MII_VSC8244_AUXCONSTAT_GBIT	0x0010
+#define MII_VSC8244_AUXCONSTAT_100	0x0008
 
 #define MII_VSC8221_AUXCONSTAT_INIT	0x0004 /* need to set this bit? */
 #define MII_VSC8221_AUXCONSTAT_RESERVED	0x0004
@@ -100,9 +100,8 @@ static int vsc824x_config_init(struct phy_device *phydev)
 static int vsc824x_ack_interrupt(struct phy_device *phydev)
 {
 	int err = 0;
-	
-	/*
-	 * Don't bother to ACK the interrupts if interrupts
+
+	/* Don't bother to ACK the interrupts if interrupts
 	 * are disabled.  The 824x cannot clear the interrupts
 	 * if they are disabled.
 	 */
@@ -122,8 +121,7 @@ static int vsc82xx_config_intr(struct phy_device *phydev)
 				MII_VSC8244_IMASK_MASK :
 				MII_VSC8221_IMASK_MASK);
 	else {
-		/*
-		 * The Vitesse PHY cannot clear the interrupt
+		/* The Vitesse PHY cannot clear the interrupt
 		 * once it has disabled them, so we clear them first
 		 */
 		err = phy_read(phydev, MII_VSC8244_ISTAT);
@@ -146,7 +144,8 @@ static int vsc8221_config_init(struct phy_device *phydev)
 	return err;
 
 	/* Perhaps we should set EXT_CON1 based on the interface?
-	   Options are 802.3Z SerDes or SGMII */
+	 * Options are 802.3Z SerDes or SGMII
+	 */
 }
 
 /* Vitesse 824x */
-- 
cgit v0.10.2


From 5a1cebd8f4371bf08bf20a4de5a28d2b3f03c17d Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 20:08:24 +0000
Subject: phy: Add Vitesse 8211 phy ID

Phy is compatible with Vitesse 8221.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index d6e988f..69b482b 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -56,6 +56,7 @@
 
 #define PHY_ID_VSC8244			0x000fc6c0
 #define PHY_ID_VSC8221			0x000fc550
+#define PHY_ID_VSC8211			0x000fc4b0
 
 MODULE_DESCRIPTION("Vitesse PHY driver");
 MODULE_AUTHOR("Kriston Carson");
@@ -175,6 +176,19 @@ static struct phy_driver vsc82xx_driver[] = {
 	.ack_interrupt	= &vsc824x_ack_interrupt,
 	.config_intr	= &vsc82xx_config_intr,
 	.driver		= { .owner = THIS_MODULE,},
+}, {
+	/* Vitesse 8211 */
+	.phy_id		= PHY_ID_VSC8211,
+	.phy_id_mask	= 0x000ffff0,
+	.name		= "Vitesse VSC8211",
+	.features	= PHY_GBIT_FEATURES,
+	.flags		= PHY_HAS_INTERRUPT,
+	.config_init	= &vsc8221_config_init,
+	.config_aneg	= &genphy_config_aneg,
+	.read_status	= &genphy_read_status,
+	.ack_interrupt	= &vsc824x_ack_interrupt,
+	.config_intr	= &vsc82xx_config_intr,
+	.driver		= { .owner = THIS_MODULE,},
 } };
 
 static int __init vsc82xx_init(void)
@@ -195,6 +209,7 @@ module_exit(vsc82xx_exit);
 static struct mdio_device_id __maybe_unused vitesse_tbl[] = {
 	{ PHY_ID_VSC8244, 0x000fffc0 },
 	{ PHY_ID_VSC8221, 0x000ffff0 },
+	{ PHY_ID_VSC8211, 0x000ffff0 },
 	{ }
 };
 
-- 
cgit v0.10.2


From f5e1cabf46ed21c736453e38d6ddeadb926fbfea Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 20:08:25 +0000
Subject: phy: Use macros instead of hardcoded values in marvell phy driver

Use macros from linux/marvell_phy.h instead of duplicate
magic phy ID in the driver.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 202fe1f..371353c 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -958,15 +958,15 @@ module_init(marvell_init);
 module_exit(marvell_exit);
 
 static struct mdio_device_id __maybe_unused marvell_tbl[] = {
-	{ 0x01410c60, 0xfffffff0 },
-	{ 0x01410c90, 0xfffffff0 },
-	{ 0x01410cc0, 0xfffffff0 },
-	{ 0x01410e10, 0xfffffff0 },
-	{ 0x01410cb0, 0xfffffff0 },
-	{ 0x01410cd0, 0xfffffff0 },
-	{ 0x01410e50, 0xfffffff0 },
-	{ 0x01410e30, 0xfffffff0 },
-	{ 0x01410e90, 0xfffffff0 },
+	{ MARVELL_PHY_ID_88E1101, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1112, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1111, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1118, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1121R, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1145, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1149R, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1240, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
 	{ }
 };
 
-- 
cgit v0.10.2


From 3da09a5154edb92fe74c266a4fa900bcbed6d44c Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 20:08:26 +0000
Subject: phy: Add Marvell 88E1116R phy ID

This phy is on Xilinx ZC702 zynq development board.

Signed-off-by: Anirudha Sarangi <anirudh@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 371353c..df5a9f6 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -116,6 +116,8 @@
 #define MII_M1011_PHY_STATUS_RESOLVED	0x0800
 #define MII_M1011_PHY_STATUS_LINK	0x0400
 
+#define MII_M1116R_CONTROL_REG_MAC	21
+
 
 MODULE_DESCRIPTION("Marvell PHY driver");
 MODULE_AUTHOR("Andy Fleming");
@@ -372,6 +374,55 @@ static int m88e1318_config_aneg(struct phy_device *phydev)
 	return m88e1121_config_aneg(phydev);
 }
 
+static int m88e1116r_config_init(struct phy_device *phydev)
+{
+	int temp;
+	int err;
+
+	temp = phy_read(phydev, MII_BMCR);
+	temp |= BMCR_RESET;
+	err = phy_write(phydev, MII_BMCR, temp);
+	if (err < 0)
+		return err;
+
+	mdelay(500);
+
+	err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
+	if (err < 0)
+		return err;
+
+	temp = phy_read(phydev, MII_M1011_PHY_SCR);
+	temp |= (7 << 12);	/* max number of gigabit attempts */
+	temp |= (1 << 11);	/* enable downshift */
+	temp |= MII_M1011_PHY_SCR_AUTO_CROSS;
+	err = phy_write(phydev, MII_M1011_PHY_SCR, temp);
+	if (err < 0)
+		return err;
+
+	err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 2);
+	if (err < 0)
+		return err;
+	temp = phy_read(phydev, MII_M1116R_CONTROL_REG_MAC);
+	temp |= (1 << 5);
+	temp |= (1 << 4);
+	err = phy_write(phydev, MII_M1116R_CONTROL_REG_MAC, temp);
+	if (err < 0)
+		return err;
+	err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
+	if (err < 0)
+		return err;
+
+	temp = phy_read(phydev, MII_BMCR);
+	temp |= BMCR_RESET;
+	err = phy_write(phydev, MII_BMCR, temp);
+	if (err < 0)
+		return err;
+
+	mdelay(500);
+
+	return 0;
+}
+
 static int m88e1111_config_init(struct phy_device *phydev)
 {
 	int err;
@@ -940,6 +991,19 @@ static struct phy_driver marvell_drivers[] = {
 		.config_intr = &marvell_config_intr,
 		.driver = { .owner = THIS_MODULE },
 	},
+	{
+		.phy_id = MARVELL_PHY_ID_88E1116R,
+		.phy_id_mask = MARVELL_PHY_ID_MASK,
+		.name = "Marvell 88E1116R",
+		.features = PHY_GBIT_FEATURES,
+		.flags = PHY_HAS_INTERRUPT,
+		.config_init = &m88e1116r_config_init,
+		.config_aneg = &genphy_config_aneg,
+		.read_status = &genphy_read_status,
+		.ack_interrupt = &marvell_ack_interrupt,
+		.config_intr = &marvell_config_intr,
+		.driver = { .owner = THIS_MODULE },
+	},
 };
 
 static int __init marvell_init(void)
@@ -967,6 +1031,7 @@ static struct mdio_device_id __maybe_unused marvell_tbl[] = {
 	{ MARVELL_PHY_ID_88E1149R, MARVELL_PHY_ID_MASK },
 	{ MARVELL_PHY_ID_88E1240, MARVELL_PHY_ID_MASK },
 	{ MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK },
 	{ }
 };
 
diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h
index dd3c34e..ec41025 100644
--- a/include/linux/marvell_phy.h
+++ b/include/linux/marvell_phy.h
@@ -14,6 +14,7 @@
 #define MARVELL_PHY_ID_88E1149R		0x01410e50
 #define MARVELL_PHY_ID_88E1240		0x01410e30
 #define MARVELL_PHY_ID_88E1318S		0x01410e90
+#define MARVELL_PHY_ID_88E1116R		0x01410e40
 
 /* struct phy_device dev_flags definitions */
 #define MARVELL_PHY_M1145_FLAGS_RESISTANCE	0x00000001
-- 
cgit v0.10.2


From 10e24caa98b6dd0d3d8b783453d5c07aa4e9af0c Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 30 May 2013 20:08:27 +0000
Subject: phy: Add Marvell 88E1510 phy ID

Add support for this new phy ID.

Signed-off-by: Rick Hoover <RHoover@digilentinc.com>
Signed-off-by: Steven Wang <steven.wang@digilentinc.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index df5a9f6..2e91477 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -374,6 +374,17 @@ static int m88e1318_config_aneg(struct phy_device *phydev)
 	return m88e1121_config_aneg(phydev);
 }
 
+static int m88e1510_config_aneg(struct phy_device *phydev)
+{
+	int err;
+
+	err = m88e1318_config_aneg(phydev);
+	if (err < 0)
+		return err;
+
+	return marvell_of_reg_init(phydev);
+}
+
 static int m88e1116r_config_init(struct phy_device *phydev)
 {
 	int temp;
@@ -1004,6 +1015,19 @@ static struct phy_driver marvell_drivers[] = {
 		.config_intr = &marvell_config_intr,
 		.driver = { .owner = THIS_MODULE },
 	},
+	{
+		.phy_id = MARVELL_PHY_ID_88E1510,
+		.phy_id_mask = MARVELL_PHY_ID_MASK,
+		.name = "Marvell 88E1510",
+		.features = PHY_GBIT_FEATURES,
+		.flags = PHY_HAS_INTERRUPT,
+		.config_aneg = &m88e1510_config_aneg,
+		.read_status = &marvell_read_status,
+		.ack_interrupt = &marvell_ack_interrupt,
+		.config_intr = &marvell_config_intr,
+		.did_interrupt = &m88e1121_did_interrupt,
+		.driver = { .owner = THIS_MODULE },
+	},
 };
 
 static int __init marvell_init(void)
@@ -1032,6 +1056,7 @@ static struct mdio_device_id __maybe_unused marvell_tbl[] = {
 	{ MARVELL_PHY_ID_88E1240, MARVELL_PHY_ID_MASK },
 	{ MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
 	{ MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK },
+	{ MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK },
 	{ }
 };
 
diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h
index ec41025..8e9a029 100644
--- a/include/linux/marvell_phy.h
+++ b/include/linux/marvell_phy.h
@@ -15,6 +15,7 @@
 #define MARVELL_PHY_ID_88E1240		0x01410e30
 #define MARVELL_PHY_ID_88E1318S		0x01410e90
 #define MARVELL_PHY_ID_88E1116R		0x01410e40
+#define MARVELL_PHY_ID_88E1510		0x01410dd0
 
 /* struct phy_device dev_flags definitions */
 #define MARVELL_PHY_M1145_FLAGS_RESISTANCE	0x00000001
-- 
cgit v0.10.2


From 3c15a0fb61e743bc72e2d7e01e968f0247a8be8b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 31 May 2013 10:17:19 +0200
Subject: Revert "iwlwifi: mvm: remove P2P_DEVICE support"

This reverts commit eebfc9394ee31b3ef162692c0cd483c1318a4395.

This wasn't intended to be included here, my mistake. I
accidentally merged a mac80211 fixes tree here that had
this change, when it wasn't even intended to be there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 11dc7df..dd158ec 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -84,6 +84,15 @@ static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
 		.types = BIT(NL80211_IFTYPE_STATION) |
 			BIT(NL80211_IFTYPE_AP),
 	},
+	{
+		.max = 1,
+		.types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
+			BIT(NL80211_IFTYPE_P2P_GO),
+	},
+	{
+		.max = 1,
+		.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
+	},
 };
 
 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
@@ -152,7 +161,10 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	hw->chanctx_data_size = sizeof(struct iwl_mvm_phy_ctxt);
 
 	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
-		BIT(NL80211_IFTYPE_AP);
+		BIT(NL80211_IFTYPE_P2P_CLIENT) |
+		BIT(NL80211_IFTYPE_AP) |
+		BIT(NL80211_IFTYPE_P2P_GO) |
+		BIT(NL80211_IFTYPE_P2P_DEVICE);
 
 	hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
 			    WIPHY_FLAG_DISABLE_BEACON_HINTS |
-- 
cgit v0.10.2


From a8cd57b3042446250f19daf98d120802dffc768d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 31 May 2013 10:17:49 +0200
Subject: Revert "mac80211_hwsim: remove P2P_DEVICE support"

This reverts commit e3ee68b7b049c5bbfcb78a179c00c373a38ed58c.

This wasn't intended to be included here, my mistake. I
accidentally merged a mac80211 fixes tree here that had
this change, when it wasn't even intended to be there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 69bbf6f..cb34c78 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2169,6 +2169,7 @@ static const struct ieee80211_iface_limit hwsim_if_limits[] = {
 #endif
 				 BIT(NL80211_IFTYPE_AP) |
 				 BIT(NL80211_IFTYPE_P2P_GO) },
+	{ .max = 1, .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
 };
 
 static struct ieee80211_iface_combination hwsim_if_comb = {
@@ -2294,7 +2295,8 @@ static int __init init_mac80211_hwsim(void)
 			BIT(NL80211_IFTYPE_P2P_CLIENT) |
 			BIT(NL80211_IFTYPE_P2P_GO) |
 			BIT(NL80211_IFTYPE_ADHOC) |
-			BIT(NL80211_IFTYPE_MESH_POINT);
+			BIT(NL80211_IFTYPE_MESH_POINT) |
+			BIT(NL80211_IFTYPE_P2P_DEVICE);
 
 		hw->flags = IEEE80211_HW_MFP_CAPABLE |
 			    IEEE80211_HW_SIGNAL_DBM |
-- 
cgit v0.10.2


From b431becc35a9d25c4a0220fa2c4cf9b9f1dc8bac Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 30 May 2013 00:22:43 +0000
Subject: net, jme: remove redundant D0 power state set

pci_enable_device() will set device power state to D0,
so it's no need to do it again in jme_init_one().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c
index 070a6f1..7fbe6ab 100644
--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -3148,7 +3148,6 @@ jme_init_one(struct pci_dev *pdev,
 	jme->mii_if.mdio_write = jme_mdio_write;
 
 	jme_clear_pm(jme);
-	pci_set_power_state(jme->pdev, PCI_D0);
 	device_set_wakeup_enable(&pdev->dev, true);
 
 	jme_set_phyfifo_5level(jme);
-- 
cgit v0.10.2


From e4afed373eefb91a80e69075fbcd5438c2d36283 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 30 May 2013 00:26:09 +0000
Subject: qlcnic: remove redundant D0 power state set

pci_enable_device() will set device power state to D0,
so it's no need to do it again in qlcnic_attach_func().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 6bb56d4..0ae8835 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -3232,7 +3232,6 @@ static int qlcnic_attach_func(struct pci_dev *pdev)
 	if (err)
 		return err;
 
-	pci_set_power_state(pdev, PCI_D0);
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
 
-- 
cgit v0.10.2


From 311503bb2119788ac88c406e0893351a2bb0705e Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 30 May 2013 00:27:06 +0000
Subject: tulip: remove redundant D0 power state set

pci_enable_device() will set device power state to D0,
so it's no need to do it again in tulip_init_one().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 1e9443d..c94152f 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -1410,12 +1410,6 @@ static int tulip_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return i;
 	}
 
-	/* The chip will fail to enter a low-power state later unless
-	 * first explicitly commanded into D0 */
-	if (pci_set_power_state(pdev, PCI_D0)) {
-		pr_notice("Failed to set power state to D0\n");
-	}
-
 	irq = pdev->irq;
 
 	/* alloc_etherdev ensures aligned and zeroed private structures */
-- 
cgit v0.10.2


From aef6de511a2aea78098e0d507ad7280d38b6b019 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Thu, 30 May 2013 20:36:11 +0000
Subject: sctp: Correct byte order of access to skb->{network,
 transport}_header

Corrects an byte order conflict introduced by "sctp: Correct access to
skb->{network, transport}_header". All the values in question are host
byte order.

Reported-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/input.c b/net/sctp/input.c
index e328fe8..6533d81 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -589,7 +589,7 @@ void sctp_v4_err(struct sk_buff *skb, __u32 info)
 	struct sctp_association *asoc = NULL;
 	struct sctp_transport *transport;
 	struct inet_sock *inet;
-	__be16 saveip, savesctp;
+	__u16 saveip, savesctp;
 	int err;
 	struct net *net = dev_net(skb->dev);
 
-- 
cgit v0.10.2


From c3f1dbaf6e281642848b78fe101764170c15f168 Mon Sep 17 00:00:00 2001
From: David Majnemer <majnemer@google.com>
Date: Fri, 31 May 2013 13:15:38 +0000
Subject: net: Update RFS target at poll for tcp/udp

The current state of affairs is that read()/write() will setup
RFS (Receive Flow Steering) for internet protocol sockets while
poll()/epoll() does not.

When poll() gets called with a TCP or UDP socket, we should update
the flow target.

This permits to RFS (if enabled) to select the appropriate CPU for
following incoming packets.

Note: Only connected UDP sockets can benefit from RFS.

Signed-off-by: David Majnemer <majnemer@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paul Turner <pjt@google.com>
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 1f58594..b5d4ad9 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -436,6 +436,8 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
 	struct sock *sk = sock->sk;
 	const struct tcp_sock *tp = tcp_sk(sk);
 
+	sock_rps_record_flow(sk);
+
 	sock_poll_wait(file, sk_sleep(sk), wait);
 	if (sk->sk_state == TCP_LISTEN)
 		return inet_csk_listen_poll(sk);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index aa5eff4..c7338ec 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1967,6 +1967,8 @@ unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait)
 	unsigned int mask = datagram_poll(file, sock, wait);
 	struct sock *sk = sock->sk;
 
+	sock_rps_record_flow(sk);
+
 	/* Check for false positives due to checksum errors */
 	if ((mask & POLLRDNORM) && !(file->f_flags & O_NONBLOCK) &&
 	    !(sk->sk_shutdown & RCV_SHUTDOWN) && !first_packet_length(sk))
-- 
cgit v0.10.2


From db8caf3dbc77599dc90f4ea0a803cd1d97116f30 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 31 May 2013 11:18:10 +0000
Subject: gro: should aggregate frames without DF

GRO on IPv4 doesn't aggregate frames if they don't have DF bit set.

Some servers use IP_MTU_DISCOVER/IP_PMTUDISC_PROBE, so linux receivers
are unable to aggregate this kind of traffic.

The right thing to do is to allow aggregation as long as the DF bit has
same value on all segments.

bnx2x LRO does this correctly.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jerry Chu <hkchu@google.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index b05ae96..9c090c7 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1385,7 +1385,7 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 		goto out_unlock;
 
 	id = ntohl(*(__be32 *)&iph->id);
-	flush = (u16)((ntohl(*(__be32 *)iph) ^ skb_gro_len(skb)) | (id ^ IP_DF));
+	flush = (u16)((ntohl(*(__be32 *)iph) ^ skb_gro_len(skb)) | (id & ~IP_DF));
 	id >>= 16;
 
 	for (p = *head; p; p = p->next) {
@@ -1407,6 +1407,7 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 		NAPI_GRO_CB(p)->flush |=
 			(iph->ttl ^ iph2->ttl) |
 			(iph->tos ^ iph2->tos) |
+			((iph->frag_off ^ iph2->frag_off) & htons(IP_DF)) |
 			((u16)(ntohs(iph2->id) + NAPI_GRO_CB(p)->count) ^ id);
 
 		NAPI_GRO_CB(p)->flush |= flush;
-- 
cgit v0.10.2


From 938177e9f3e0238c1712210f7bb6def38a5c8d7f Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Thu, 30 May 2013 16:39:29 +0000
Subject: netfilter: Correct calculation using skb->tail and skb-network_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->network_header
will be an offset from head. This is corrected by using wrappers that
ensure that calculations are always made using pointers.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netfilter/nf_nat_helper.c b/net/netfilter/nf_nat_helper.c
index 5fea563..85e20a9 100644
--- a/net/netfilter/nf_nat_helper.c
+++ b/net/netfilter/nf_nat_helper.c
@@ -104,7 +104,7 @@ static void mangle_contents(struct sk_buff *skb,
 	/* move post-replacement */
 	memmove(data + match_offset + rep_len,
 		data + match_offset + match_len,
-		skb->tail - (skb->network_header + dataoff +
+		skb_tail_pointer(skb) - (skb_network_header(skb) + dataoff +
 			     match_offset + match_len));
 
 	/* insert data from buffer */
-- 
cgit v0.10.2


From 35d0461061f27eeb62de63174959edbbb9e434de Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Wed, 29 May 2013 15:16:05 +0800
Subject: net: clean up skb headers code

commit 1a37e412a0225fcba5587 (net: Use 16bits for *_headers
fields of struct skbuff) converts skb->*_header to u16,
some #if NET_SKBUFF_DATA_USES_OFFSET are now useless,
and to be safe, we could just use "X = (typeof(X)) ~0U;"
as suggested by David.

Cc: David S. Miller <davem@davemloft.net>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5f93119..b999790 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1593,7 +1593,7 @@ static inline void skb_set_inner_mac_header(struct sk_buff *skb,
 }
 static inline bool skb_transport_header_was_set(const struct sk_buff *skb)
 {
-	return skb->transport_header != ~0U;
+	return skb->transport_header != (typeof(skb->transport_header))~0U;
 }
 
 static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
@@ -1636,7 +1636,7 @@ static inline unsigned char *skb_mac_header(const struct sk_buff *skb)
 
 static inline int skb_mac_header_was_set(const struct sk_buff *skb)
 {
-	return skb->mac_header != ~0U;
+	return skb->mac_header != (typeof(skb->mac_header))~0U;
 }
 
 static inline void skb_reset_mac_header(struct sk_buff *skb)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index f45de07..6b1b52c 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -199,9 +199,7 @@ struct sk_buff *__alloc_skb_head(gfp_t gfp_mask, int node)
 	skb->truesize = sizeof(struct sk_buff);
 	atomic_set(&skb->users, 1);
 
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
-	skb->mac_header = (__u16) ~0U;
-#endif
+	skb->mac_header = (typeof(skb->mac_header))~0U;
 out:
 	return skb;
 }
@@ -275,10 +273,8 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
 	skb->data = data;
 	skb_reset_tail_pointer(skb);
 	skb->end = skb->tail + size;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
-	skb->mac_header = (__u16) ~0U;
-	skb->transport_header = (__u16) ~0U;
-#endif
+	skb->mac_header = (typeof(skb->mac_header))~0U;
+	skb->transport_header = (typeof(skb->transport_header))~0U;
 
 	/* make sure we initialize shinfo sequentially */
 	shinfo = skb_shinfo(skb);
@@ -344,10 +340,8 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size)
 	skb->data = data;
 	skb_reset_tail_pointer(skb);
 	skb->end = skb->tail + size;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
-	skb->mac_header = (__u16) ~0U;
-	skb->transport_header = (__u16) ~0U;
-#endif
+	skb->mac_header = (typeof(skb->mac_header))~0U;
+	skb->transport_header = (typeof(skb->transport_header))~0U;
 
 	/* make sure we initialize shinfo sequentially */
 	shinfo = skb_shinfo(skb);
-- 
cgit v0.10.2


From bf3d6a8f791b2a81279b9ce3201b4970f6fbe51a Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Mon, 27 May 2013 23:48:15 +0000
Subject: iptunnel: specify protocol outside IP header

Before this patch, ip_tunnel_xmit() was using the field protocol from the IP
header passed into argument.
There is no functional change, this patch prepares the support of IPv4 over
IPv4 for module sit.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 4b6f0b2..40b4dfc 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -101,7 +101,7 @@ int __net_init ip_tunnel_init_net(struct net *net, int ip_tnl_net_id,
 void __net_exit ip_tunnel_delete_net(struct ip_tunnel_net *itn);
 
 void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
-		    const struct iphdr *tnl_params);
+		    const struct iphdr *tnl_params, const u8 protocol);
 int ip_tunnel_ioctl(struct net_device *dev, struct ip_tunnel_parm *p, int cmd);
 int ip_tunnel_change_mtu(struct net_device *dev, int new_mtu);
 
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 2a83591..a982657 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -429,7 +429,7 @@ static void __gre_xmit(struct sk_buff *skb, struct net_device *dev,
 		return;
 	}
 
-	ip_tunnel_xmit(skb, dev, tnl_params);
+	ip_tunnel_xmit(skb, dev, tnl_params, tnl_params->protocol);
 }
 
 static netdev_tx_t ipgre_xmit(struct sk_buff *skb,
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index e4147ec..b89095c 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -487,7 +487,7 @@ drop:
 EXPORT_SYMBOL_GPL(ip_tunnel_rcv);
 
 void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
-		    const struct iphdr *tnl_params)
+		    const struct iphdr *tnl_params, const u8 protocol)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	const struct iphdr *inner_iph;
@@ -670,7 +670,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 	iph->version	=	4;
 	iph->ihl	=	sizeof(struct iphdr) >> 2;
 	iph->frag_off	=	df;
-	iph->protocol	=	tnl_params->protocol;
+	iph->protocol	=	protocol;
 	iph->tos	=	ip_tunnel_ecn_encap(tos, inner_iph, skb);
 	iph->daddr	=	fl4.daddr;
 	iph->saddr	=	fl4.saddr;
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 77bfcce..9df7ecd 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -222,7 +222,7 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 		skb->encapsulation = 1;
 	}
 
-	ip_tunnel_xmit(skb, dev, tiph);
+	ip_tunnel_xmit(skb, dev, tiph, tiph->protocol);
 	return NETDEV_TX_OK;
 
 tx_error:
-- 
cgit v0.10.2


From 32b8a8e59c9c8fa56051d6e9ab2924e469ac4d92 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Mon, 27 May 2013 23:48:16 +0000
Subject: sit: add IPv4 over IPv4 support

This patch adds the support of IPv4 over Ipv4 for the module sit. The gain of
this feature is to be able to have 4in4 and 6in4 over the same interface
instead of having one interface for 6in4 and another for 4in4 even if
encapsulation addresses are the same.

To avoid conflicting with ipip module, sit IPv4 over IPv4 protocol is
registered with a smaller priority.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index 05a5df2..06347db 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -63,7 +63,7 @@ static int xfrm_tunnel_err(struct sk_buff *skb, u32 info)
 static struct xfrm_tunnel xfrm_tunnel_handler __read_mostly = {
 	.handler	=	xfrm_tunnel_rcv,
 	.err_handler	=	xfrm_tunnel_err,
-	.priority	=	2,
+	.priority	=	3,
 };
 
 #if IS_ENABLED(CONFIG_IPV6)
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 3353634..6b9c1f12 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -577,6 +577,10 @@ static int ipip6_rcv(struct sk_buff *skb)
 	if (tunnel != NULL) {
 		struct pcpu_tstats *tstats;
 
+		if (tunnel->parms.iph.protocol != IPPROTO_IPV6 &&
+		    tunnel->parms.iph.protocol != 0)
+			goto out;
+
 		secpath_reset(skb);
 		skb->mac_header = skb->network_header;
 		skb_reset_network_header(skb);
@@ -629,6 +633,35 @@ out:
 	return 0;
 }
 
+static const struct tnl_ptk_info tpi = {
+	/* no tunnel info required for ipip. */
+	.proto = htons(ETH_P_IP),
+};
+
+static int ipip_rcv(struct sk_buff *skb)
+{
+	const struct iphdr *iph = ip_hdr(skb);
+	struct ip_tunnel *tunnel;
+
+	tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev,
+				     iph->saddr, iph->daddr);
+	if (tunnel != NULL) {
+		if (tunnel->parms.iph.protocol != IPPROTO_IPIP &&
+		    tunnel->parms.iph.protocol != 0)
+			goto drop;
+
+		if (!xfrm4_policy_check(NULL, XFRM_POLICY_IN, skb))
+			goto drop;
+		return ip_tunnel_rcv(tunnel, skb, &tpi, log_ecn_error);
+	}
+
+	return 1;
+
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
 /*
  * If the IPv6 address comes from 6rd / 6to4 (RFC 3056) addr space this function
  * stores the embedded IPv4 address in v4dst and returns true.
@@ -877,6 +910,43 @@ tx_error:
 	return NETDEV_TX_OK;
 }
 
+static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct ip_tunnel *tunnel = netdev_priv(dev);
+	const struct iphdr  *tiph = &tunnel->parms.iph;
+
+	if (likely(!skb->encapsulation)) {
+		skb_reset_inner_headers(skb);
+		skb->encapsulation = 1;
+	}
+
+	ip_tunnel_xmit(skb, dev, tiph, IPPROTO_IPIP);
+	return NETDEV_TX_OK;
+}
+
+static netdev_tx_t sit_tunnel_xmit(struct sk_buff *skb,
+				   struct net_device *dev)
+{
+	switch (skb->protocol) {
+	case htons(ETH_P_IP):
+		ipip_tunnel_xmit(skb, dev);
+		break;
+	case htons(ETH_P_IPV6):
+		ipip6_tunnel_xmit(skb, dev);
+		break;
+	default:
+		goto tx_err;
+	}
+
+	return NETDEV_TX_OK;
+
+tx_err:
+	dev->stats.tx_errors++;
+	dev_kfree_skb(skb);
+	return NETDEV_TX_OK;
+
+}
+
 static void ipip6_tunnel_bind_dev(struct net_device *dev)
 {
 	struct net_device *tdev = NULL;
@@ -1027,7 +1097,11 @@ ipip6_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
 			goto done;
 
 		err = -EINVAL;
-		if (p.iph.version != 4 || p.iph.protocol != IPPROTO_IPV6 ||
+		if (p.iph.protocol != IPPROTO_IPV6 &&
+		    p.iph.protocol != IPPROTO_IPIP &&
+		    p.iph.protocol != 0)
+			goto done;
+		if (p.iph.version != 4 ||
 		    p.iph.ihl != 5 || (p.iph.frag_off&htons(~IP_DF)))
 			goto done;
 		if (p.iph.ttl)
@@ -1164,7 +1238,7 @@ static int ipip6_tunnel_change_mtu(struct net_device *dev, int new_mtu)
 
 static const struct net_device_ops ipip6_netdev_ops = {
 	.ndo_uninit	= ipip6_tunnel_uninit,
-	.ndo_start_xmit	= ipip6_tunnel_xmit,
+	.ndo_start_xmit	= sit_tunnel_xmit,
 	.ndo_do_ioctl	= ipip6_tunnel_ioctl,
 	.ndo_change_mtu	= ipip6_tunnel_change_mtu,
 	.ndo_get_stats64 = ip_tunnel_get_stats64,
@@ -1232,6 +1306,22 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
 	return 0;
 }
 
+static int ipip6_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+	u8 proto;
+
+	if (!data)
+		return 0;
+
+	proto = nla_get_u8(data[IFLA_IPTUN_PROTO]);
+	if (proto != IPPROTO_IPV6 &&
+	    proto != IPPROTO_IPIP &&
+	    proto != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
 static void ipip6_netlink_parms(struct nlattr *data[],
 				struct ip_tunnel_parm *parms)
 {
@@ -1268,6 +1358,10 @@ static void ipip6_netlink_parms(struct nlattr *data[],
 
 	if (data[IFLA_IPTUN_FLAGS])
 		parms->i_flags = nla_get_be16(data[IFLA_IPTUN_FLAGS]);
+
+	if (data[IFLA_IPTUN_PROTO])
+		parms->iph.protocol = nla_get_u8(data[IFLA_IPTUN_PROTO]);
+
 }
 
 #ifdef CONFIG_IPV6_SIT_6RD
@@ -1391,6 +1485,8 @@ static size_t ipip6_get_size(const struct net_device *dev)
 		nla_total_size(1) +
 		/* IFLA_IPTUN_FLAGS */
 		nla_total_size(2) +
+		/* IFLA_IPTUN_PROTO */
+		nla_total_size(1) +
 #ifdef CONFIG_IPV6_SIT_6RD
 		/* IFLA_IPTUN_6RD_PREFIX */
 		nla_total_size(sizeof(struct in6_addr)) +
@@ -1416,6 +1512,7 @@ static int ipip6_fill_info(struct sk_buff *skb, const struct net_device *dev)
 	    nla_put_u8(skb, IFLA_IPTUN_TOS, parm->iph.tos) ||
 	    nla_put_u8(skb, IFLA_IPTUN_PMTUDISC,
 		       !!(parm->iph.frag_off & htons(IP_DF))) ||
+	    nla_put_u8(skb, IFLA_IPTUN_PROTO, parm->iph.protocol) ||
 	    nla_put_be16(skb, IFLA_IPTUN_FLAGS, parm->i_flags))
 		goto nla_put_failure;
 
@@ -1445,6 +1542,7 @@ static const struct nla_policy ipip6_policy[IFLA_IPTUN_MAX + 1] = {
 	[IFLA_IPTUN_TOS]		= { .type = NLA_U8 },
 	[IFLA_IPTUN_PMTUDISC]		= { .type = NLA_U8 },
 	[IFLA_IPTUN_FLAGS]		= { .type = NLA_U16 },
+	[IFLA_IPTUN_PROTO]		= { .type = NLA_U8 },
 #ifdef CONFIG_IPV6_SIT_6RD
 	[IFLA_IPTUN_6RD_PREFIX]		= { .len = sizeof(struct in6_addr) },
 	[IFLA_IPTUN_6RD_RELAY_PREFIX]	= { .type = NLA_U32 },
@@ -1459,6 +1557,7 @@ static struct rtnl_link_ops sit_link_ops __read_mostly = {
 	.policy		= ipip6_policy,
 	.priv_size	= sizeof(struct ip_tunnel),
 	.setup		= ipip6_tunnel_setup,
+	.validate	= ipip6_validate,
 	.newlink	= ipip6_newlink,
 	.changelink	= ipip6_changelink,
 	.get_size	= ipip6_get_size,
@@ -1471,6 +1570,12 @@ static struct xfrm_tunnel sit_handler __read_mostly = {
 	.priority	=	1,
 };
 
+static struct xfrm_tunnel ipip_handler __read_mostly = {
+	.handler	=	ipip_rcv,
+	.err_handler	=	ipip6_err,
+	.priority	=	2,
+};
+
 static void __net_exit sit_destroy_tunnels(struct sit_net *sitn, struct list_head *head)
 {
 	int prio;
@@ -1553,6 +1658,7 @@ static void __exit sit_cleanup(void)
 {
 	rtnl_link_unregister(&sit_link_ops);
 	xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
+	xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
 
 	unregister_pernet_device(&sit_net_ops);
 	rcu_barrier(); /* Wait for completion of call_rcu()'s */
@@ -1569,9 +1675,14 @@ static int __init sit_init(void)
 		return err;
 	err = xfrm4_tunnel_register(&sit_handler, AF_INET6);
 	if (err < 0) {
-		pr_info("%s: can't add protocol\n", __func__);
+		pr_info("%s: can't register ip6ip4\n", __func__);
 		goto xfrm_tunnel_failed;
 	}
+	err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
+	if (err < 0) {
+		pr_info("%s: can't register ip4ip4\n", __func__);
+		goto xfrm_tunnel4_failed;
+	}
 	err = rtnl_link_register(&sit_link_ops);
 	if (err < 0)
 		goto rtnl_link_failed;
@@ -1580,6 +1691,8 @@ out:
 	return err;
 
 rtnl_link_failed:
+	xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
+xfrm_tunnel4_failed:
 	xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
 xfrm_tunnel_failed:
 	unregister_pernet_device(&sit_net_ops);
-- 
cgit v0.10.2


From 2cc70ba4cf5f97a7cf08063d2fae693d36b462eb Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Tue, 28 May 2013 04:07:21 +0000
Subject: phy: add reverse MII PHY connection type

The PHY library currently does not know about the the reverse MII
connection type. Add it to the list of supported PHY modes and update
of_get_phy_mode() to support it and look for the string "rev-mii".

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c
index ffab033..ea174c8 100644
--- a/drivers/of/of_net.c
+++ b/drivers/of/of_net.c
@@ -22,6 +22,7 @@ static const char *phy_modes[] = {
 	[PHY_INTERFACE_MODE_GMII]	= "gmii",
 	[PHY_INTERFACE_MODE_SGMII]	= "sgmii",
 	[PHY_INTERFACE_MODE_TBI]	= "tbi",
+	[PHY_INTERFACE_MODE_REVMII]	= "rev-mii",
 	[PHY_INTERFACE_MODE_RMII]	= "rmii",
 	[PHY_INTERFACE_MODE_RGMII]	= "rgmii",
 	[PHY_INTERFACE_MODE_RGMII_ID]	= "rgmii-id",
diff --git a/include/linux/phy.h b/include/linux/phy.h
index ee411b0..64ab823 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -58,6 +58,7 @@ typedef enum {
 	PHY_INTERFACE_MODE_GMII,
 	PHY_INTERFACE_MODE_SGMII,
 	PHY_INTERFACE_MODE_TBI,
+	PHY_INTERFACE_MODE_REVMII,
 	PHY_INTERFACE_MODE_RMII,
 	PHY_INTERFACE_MODE_RGMII,
 	PHY_INTERFACE_MODE_RGMII_ID,
-- 
cgit v0.10.2


From 492205050d77bcc4f85f6dc0da6b6fdbca1d6ff7 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Thu, 30 May 2013 03:49:20 +0000
Subject: net: Add EMAC ethernet driver found on Allwinner A10 SoC's

The Allwinner A10 has an ethernet controller that seem to be developped
internally by them.

The exact feature set of this controller is unknown, since there is no
public documentation for this IP, and this driver is mostly the one
published by Allwinner that has been heavily cleaned up.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt b/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt
new file mode 100644
index 0000000..b90bfcd
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt
@@ -0,0 +1,22 @@
+* Allwinner EMAC ethernet controller
+
+Required properties:
+- compatible: should be "allwinner,sun4i-emac".
+- reg: address and length of the register set for the device.
+- interrupts: interrupt for the device
+- phy: A phandle to a phy node defining the PHY address (as the reg
+  property, a single integer).
+- clocks: A phandle to the reference clock for this device
+
+Optional properties:
+- (local-)mac-address: mac address to be used by this driver
+
+Example:
+
+emac: ethernet@01c0b000 {
+       compatible = "allwinner,sun4i-emac";
+       reg = <0x01c0b000 0x1000>;
+       interrupts = <55>;
+       clocks = <&ahb_gates 17>;
+       phy = <&phy0>;
+};
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index ed956e0..18fd6fb 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -20,6 +20,7 @@ config SUNGEM_PHY
 source "drivers/net/ethernet/3com/Kconfig"
 source "drivers/net/ethernet/adaptec/Kconfig"
 source "drivers/net/ethernet/aeroflex/Kconfig"
+source "drivers/net/ethernet/allwinner/Kconfig"
 source "drivers/net/ethernet/alteon/Kconfig"
 source "drivers/net/ethernet/amd/Kconfig"
 source "drivers/net/ethernet/apple/Kconfig"
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index 8268d85..009da27 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_NET_VENDOR_3COM) += 3com/
 obj-$(CONFIG_NET_VENDOR_8390) += 8390/
 obj-$(CONFIG_NET_VENDOR_ADAPTEC) += adaptec/
 obj-$(CONFIG_GRETH) += aeroflex/
+obj-$(CONFIG_NET_VENDOR_ALLWINNER) += allwinner/
 obj-$(CONFIG_NET_VENDOR_ALTEON) += alteon/
 obj-$(CONFIG_NET_VENDOR_AMD) += amd/
 obj-$(CONFIG_NET_VENDOR_APPLE) += apple/
diff --git a/drivers/net/ethernet/allwinner/Kconfig b/drivers/net/ethernet/allwinner/Kconfig
new file mode 100644
index 0000000..66d3532
--- /dev/null
+++ b/drivers/net/ethernet/allwinner/Kconfig
@@ -0,0 +1,36 @@
+#
+# Allwinner device configuration
+#
+
+config NET_VENDOR_ALLWINNER
+       bool "Allwinner devices"
+       default y
+       depends on ARCH_SUNXI
+       ---help---
+         If you have a network (Ethernet) card belonging to this
+	 class, say Y and read the Ethernet-HOWTO, available from
+	 <http://www.tldp.org/docs.html#howto>.
+
+	 Note that the answer to this question doesn't directly
+	 affect the kernel: saying N will just cause the configurator
+	 to skip all the questions about Allwinner cards. If you say Y,
+	 you will be asked for your specific card in the following
+	 questions.
+
+if NET_VENDOR_ALLWINNER
+
+config SUN4I_EMAC
+        tristate "Allwinner A10 EMAC support"
+	depends on ARCH_SUNXI
+	depends on OF
+	select CRC32
+	select NET_CORE
+	select MII
+	select PHYLIB
+        ---help---
+          Support for Allwinner A10 EMAC ethernet driver.
+
+          To compile this driver as a module, choose M here.  The module
+          will be called sun4i-emac.
+
+endif # NET_VENDOR_ALLWINNER
diff --git a/drivers/net/ethernet/allwinner/Makefile b/drivers/net/ethernet/allwinner/Makefile
new file mode 100644
index 0000000..03129f7
--- /dev/null
+++ b/drivers/net/ethernet/allwinner/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the Allwinner device drivers.
+#
+
+obj-$(CONFIG_SUN4I_EMAC) += sun4i-emac.o
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
new file mode 100644
index 0000000..b411344
--- /dev/null
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -0,0 +1,960 @@
+/*
+ * Allwinner EMAC Fast Ethernet driver for Linux.
+ *
+ * Copyright 2012-2013 Stefan Roese <sr@denx.de>
+ * Copyright 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * Based on the Linux driver provided by Allwinner:
+ * Copyright (C) 1997  Sten Wang
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_mdio.h>
+#include <linux/of_net.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/phy.h>
+
+#include "sun4i-emac.h"
+
+#define DRV_NAME		"sun4i-emac"
+#define DRV_VERSION		"1.02"
+
+#define EMAC_MAX_FRAME_LEN	0x0600
+
+/* Transmit timeout, default 5 seconds. */
+static int watchdog = 5000;
+module_param(watchdog, int, 0400);
+MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds");
+
+/* EMAC register address locking.
+ *
+ * The EMAC uses an address register to control where data written
+ * to the data register goes. This means that the address register
+ * must be preserved over interrupts or similar calls.
+ *
+ * During interrupt and other critical calls, a spinlock is used to
+ * protect the system, but the calls themselves save the address
+ * in the address register in case they are interrupting another
+ * access to the device.
+ *
+ * For general accesses a lock is provided so that calls which are
+ * allowed to sleep are serialised so that the address register does
+ * not need to be saved. This lock also serves to serialise access
+ * to the EEPROM and PHY access registers which are shared between
+ * these two devices.
+ */
+
+/* The driver supports the original EMACE, and now the two newer
+ * devices, EMACA and EMACB.
+ */
+
+struct emac_board_info {
+	struct clk		*clk;
+	struct device		*dev;
+	struct platform_device	*pdev;
+	spinlock_t		lock;
+	void __iomem		*membase;
+	u32			msg_enable;
+	struct net_device	*ndev;
+	struct sk_buff		*skb_last;
+	u16			tx_fifo_stat;
+
+	int			emacrx_completed_flag;
+
+	struct phy_device	*phy_dev;
+	struct device_node	*phy_node;
+	unsigned int		link;
+	unsigned int		speed;
+	unsigned int		duplex;
+
+	phy_interface_t		phy_interface;
+};
+
+static void emac_update_speed(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+	unsigned int reg_val;
+
+	/* set EMAC SPEED, depend on PHY  */
+	reg_val = readl(db->membase + EMAC_MAC_SUPP_REG);
+	reg_val &= ~(0x1 << 8);
+	if (db->speed == SPEED_100)
+		reg_val |= 1 << 8;
+	writel(reg_val, db->membase + EMAC_MAC_SUPP_REG);
+}
+
+static void emac_update_duplex(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+	unsigned int reg_val;
+
+	/* set duplex depend on phy */
+	reg_val = readl(db->membase + EMAC_MAC_CTL1_REG);
+	reg_val &= ~EMAC_MAC_CTL1_DUPLEX_EN;
+	if (db->duplex)
+		reg_val |= EMAC_MAC_CTL1_DUPLEX_EN;
+	writel(reg_val, db->membase + EMAC_MAC_CTL1_REG);
+}
+
+static void emac_handle_link_change(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+	struct phy_device *phydev = db->phy_dev;
+	unsigned long flags;
+	int status_change = 0;
+
+	if (phydev->link) {
+		if (db->speed != phydev->speed) {
+			spin_lock_irqsave(&db->lock, flags);
+			db->speed = phydev->speed;
+			emac_update_speed(dev);
+			spin_unlock_irqrestore(&db->lock, flags);
+			status_change = 1;
+		}
+
+		if (db->duplex != phydev->duplex) {
+			spin_lock_irqsave(&db->lock, flags);
+			db->duplex = phydev->duplex;
+			emac_update_duplex(dev);
+			spin_unlock_irqrestore(&db->lock, flags);
+			status_change = 1;
+		}
+	}
+
+	if (phydev->link != db->link) {
+		if (!phydev->link) {
+			db->speed = 0;
+			db->duplex = -1;
+		}
+		db->link = phydev->link;
+
+		status_change = 1;
+	}
+
+	if (status_change)
+		phy_print_status(phydev);
+}
+
+static int emac_mdio_probe(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+
+	/* to-do: PHY interrupts are currently not supported */
+
+	/* attach the mac to the phy */
+	db->phy_dev = of_phy_connect(db->ndev, db->phy_node,
+				     &emac_handle_link_change, 0,
+				     db->phy_interface);
+	if (!db->phy_dev) {
+		netdev_err(db->ndev, "could not find the PHY\n");
+		return -ENODEV;
+	}
+
+	/* mask with MAC supported features */
+	db->phy_dev->supported &= PHY_BASIC_FEATURES;
+	db->phy_dev->advertising = db->phy_dev->supported;
+
+	db->link = 0;
+	db->speed = 0;
+	db->duplex = -1;
+
+	return 0;
+}
+
+static void emac_mdio_remove(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+
+	phy_disconnect(db->phy_dev);
+	db->phy_dev = NULL;
+}
+
+static void emac_reset(struct emac_board_info *db)
+{
+	dev_dbg(db->dev, "resetting device\n");
+
+	/* RESET device */
+	writel(0, db->membase + EMAC_CTL_REG);
+	udelay(200);
+	writel(EMAC_CTL_RESET, db->membase + EMAC_CTL_REG);
+	udelay(200);
+}
+
+static void emac_outblk_32bit(void __iomem *reg, void *data, int count)
+{
+	writesl(reg, data, round_up(count, 4) / 4);
+}
+
+static void emac_inblk_32bit(void __iomem *reg, void *data, int count)
+{
+	readsl(reg, data, round_up(count, 4) / 4);
+}
+
+static int emac_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+	struct emac_board_info *dm = netdev_priv(dev);
+	struct phy_device *phydev = dm->phy_dev;
+
+	if (!netif_running(dev))
+		return -EINVAL;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_mii_ioctl(phydev, rq, cmd);
+}
+
+/* ethtool ops */
+static void emac_get_drvinfo(struct net_device *dev,
+			      struct ethtool_drvinfo *info)
+{
+	strlcpy(info->driver, DRV_NAME, sizeof(DRV_NAME));
+	strlcpy(info->version, DRV_VERSION, sizeof(DRV_VERSION));
+	strlcpy(info->bus_info, dev_name(&dev->dev), sizeof(info->bus_info));
+}
+
+static int emac_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct emac_board_info *dm = netdev_priv(dev);
+	struct phy_device *phydev = dm->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_gset(phydev, cmd);
+}
+
+static int emac_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct emac_board_info *dm = netdev_priv(dev);
+	struct phy_device *phydev = dm->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_sset(phydev, cmd);
+}
+
+static const struct ethtool_ops emac_ethtool_ops = {
+	.get_drvinfo	= emac_get_drvinfo,
+	.get_settings	= emac_get_settings,
+	.set_settings	= emac_set_settings,
+	.get_link	= ethtool_op_get_link,
+};
+
+unsigned int emac_setup(struct net_device *ndev)
+{
+	struct emac_board_info *db = netdev_priv(ndev);
+	unsigned int reg_val;
+
+	/* set up TX */
+	reg_val = readl(db->membase + EMAC_TX_MODE_REG);
+
+	writel(reg_val | EMAC_TX_MODE_ABORTED_FRAME_EN,
+		db->membase + EMAC_TX_MODE_REG);
+
+	/* set up RX */
+	reg_val = readl(db->membase + EMAC_RX_CTL_REG);
+
+	writel(reg_val | EMAC_RX_CTL_PASS_LEN_OOR_EN |
+		EMAC_RX_CTL_ACCEPT_UNICAST_EN | EMAC_RX_CTL_DA_FILTER_EN |
+		EMAC_RX_CTL_ACCEPT_MULTICAST_EN |
+		EMAC_RX_CTL_ACCEPT_BROADCAST_EN,
+		db->membase + EMAC_RX_CTL_REG);
+
+	/* set MAC */
+	/* set MAC CTL0 */
+	reg_val = readl(db->membase + EMAC_MAC_CTL0_REG);
+	writel(reg_val | EMAC_MAC_CTL0_RX_FLOW_CTL_EN |
+		EMAC_MAC_CTL0_TX_FLOW_CTL_EN,
+		db->membase + EMAC_MAC_CTL0_REG);
+
+	/* set MAC CTL1 */
+	reg_val = readl(db->membase + EMAC_MAC_CTL1_REG);
+	reg_val |= EMAC_MAC_CTL1_LEN_CHECK_EN;
+	reg_val |= EMAC_MAC_CTL1_CRC_EN;
+	reg_val |= EMAC_MAC_CTL1_PAD_EN;
+	writel(reg_val, db->membase + EMAC_MAC_CTL1_REG);
+
+	/* set up IPGT */
+	writel(EMAC_MAC_IPGT_FULL_DUPLEX, db->membase + EMAC_MAC_IPGT_REG);
+
+	/* set up IPGR */
+	writel((EMAC_MAC_IPGR_IPG1 << 8) | EMAC_MAC_IPGR_IPG2,
+		db->membase + EMAC_MAC_IPGR_REG);
+
+	/* set up Collison window */
+	writel((EMAC_MAC_CLRT_COLLISION_WINDOW << 8) | EMAC_MAC_CLRT_RM,
+		db->membase + EMAC_MAC_CLRT_REG);
+
+	/* set up Max Frame Length */
+	writel(EMAC_MAX_FRAME_LEN,
+		db->membase + EMAC_MAC_MAXF_REG);
+
+	return 0;
+}
+
+unsigned int emac_powerup(struct net_device *ndev)
+{
+	struct emac_board_info *db = netdev_priv(ndev);
+	unsigned int reg_val;
+
+	/* initial EMAC */
+	/* flush RX FIFO */
+	reg_val = readl(db->membase + EMAC_RX_CTL_REG);
+	reg_val |= 0x8;
+	writel(reg_val, db->membase + EMAC_RX_CTL_REG);
+	udelay(1);
+
+	/* initial MAC */
+	/* soft reset MAC */
+	reg_val = readl(db->membase + EMAC_MAC_CTL0_REG);
+	reg_val &= ~EMAC_MAC_CTL0_SOFT_RESET;
+	writel(reg_val, db->membase + EMAC_MAC_CTL0_REG);
+
+	/* set MII clock */
+	reg_val = readl(db->membase + EMAC_MAC_MCFG_REG);
+	reg_val &= (~(0xf << 2));
+	reg_val |= (0xD << 2);
+	writel(reg_val, db->membase + EMAC_MAC_MCFG_REG);
+
+	/* clear RX counter */
+	writel(0x0, db->membase + EMAC_RX_FBC_REG);
+
+	/* disable all interrupt and clear interrupt status */
+	writel(0, db->membase + EMAC_INT_CTL_REG);
+	reg_val = readl(db->membase + EMAC_INT_STA_REG);
+	writel(reg_val, db->membase + EMAC_INT_STA_REG);
+
+	udelay(1);
+
+	/* set up EMAC */
+	emac_setup(ndev);
+
+	/* set mac_address to chip */
+	writel(ndev->dev_addr[0] << 16 | ndev->dev_addr[1] << 8 | ndev->
+	       dev_addr[2], db->membase + EMAC_MAC_A1_REG);
+	writel(ndev->dev_addr[3] << 16 | ndev->dev_addr[4] << 8 | ndev->
+	       dev_addr[5], db->membase + EMAC_MAC_A0_REG);
+
+	mdelay(1);
+
+	return 0;
+}
+
+static int emac_set_mac_address(struct net_device *dev, void *p)
+{
+	struct sockaddr *addr = p;
+	struct emac_board_info *db = netdev_priv(dev);
+
+	if (netif_running(dev))
+		return -EBUSY;
+
+	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+
+	writel(dev->dev_addr[0] << 16 | dev->dev_addr[1] << 8 | dev->
+	       dev_addr[2], db->membase + EMAC_MAC_A1_REG);
+	writel(dev->dev_addr[3] << 16 | dev->dev_addr[4] << 8 | dev->
+	       dev_addr[5], db->membase + EMAC_MAC_A0_REG);
+
+	return 0;
+}
+
+/* Initialize emac board */
+static void emac_init_device(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+	unsigned long flags;
+	unsigned int reg_val;
+
+	spin_lock_irqsave(&db->lock, flags);
+
+	emac_update_speed(dev);
+	emac_update_duplex(dev);
+
+	/* enable RX/TX */
+	reg_val = readl(db->membase + EMAC_CTL_REG);
+	writel(reg_val | EMAC_CTL_RESET | EMAC_CTL_TX_EN | EMAC_CTL_RX_EN,
+		db->membase + EMAC_CTL_REG);
+
+	/* enable RX/TX0/RX Hlevel interrup */
+	reg_val = readl(db->membase + EMAC_INT_CTL_REG);
+	reg_val |= (0xf << 0) | (0x01 << 8);
+	writel(reg_val, db->membase + EMAC_INT_CTL_REG);
+
+	spin_unlock_irqrestore(&db->lock, flags);
+}
+
+/* Our watchdog timed out. Called by the networking layer */
+static void emac_timeout(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+	unsigned long flags;
+
+	if (netif_msg_timer(db))
+		dev_err(db->dev, "tx time out.\n");
+
+	/* Save previous register address */
+	spin_lock_irqsave(&db->lock, flags);
+
+	netif_stop_queue(dev);
+	emac_reset(db);
+	emac_init_device(dev);
+	/* We can accept TX packets again */
+	dev->trans_start = jiffies;
+	netif_wake_queue(dev);
+
+	/* Restore previous register address */
+	spin_unlock_irqrestore(&db->lock, flags);
+}
+
+/* Hardware start transmission.
+ * Send a packet to media from the upper layer.
+ */
+static int emac_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+	unsigned long channel;
+	unsigned long flags;
+
+	channel = db->tx_fifo_stat & 3;
+	if (channel == 3)
+		return 1;
+
+	channel = (channel == 1 ? 1 : 0);
+
+	spin_lock_irqsave(&db->lock, flags);
+
+	writel(channel, db->membase + EMAC_TX_INS_REG);
+
+	emac_outblk_32bit(db->membase + EMAC_TX_IO_DATA_REG,
+			skb->data, skb->len);
+	dev->stats.tx_bytes += skb->len;
+
+	db->tx_fifo_stat |= 1 << channel;
+	/* TX control: First packet immediately send, second packet queue */
+	if (channel == 0) {
+		/* set TX len */
+		writel(skb->len, db->membase + EMAC_TX_PL0_REG);
+		/* start translate from fifo to phy */
+		writel(readl(db->membase + EMAC_TX_CTL0_REG) | 1,
+		       db->membase + EMAC_TX_CTL0_REG);
+
+		/* save the time stamp */
+		dev->trans_start = jiffies;
+	} else if (channel == 1) {
+		/* set TX len */
+		writel(skb->len, db->membase + EMAC_TX_PL1_REG);
+		/* start translate from fifo to phy */
+		writel(readl(db->membase + EMAC_TX_CTL1_REG) | 1,
+		       db->membase + EMAC_TX_CTL1_REG);
+
+		/* save the time stamp */
+		dev->trans_start = jiffies;
+	}
+
+	if ((db->tx_fifo_stat & 3) == 3) {
+		/* Second packet */
+		netif_stop_queue(dev);
+	}
+
+	spin_unlock_irqrestore(&db->lock, flags);
+
+	/* free this SKB */
+	dev_kfree_skb(skb);
+
+	return NETDEV_TX_OK;
+}
+
+/* EMAC interrupt handler
+ * receive the packet to upper layer, free the transmitted packet
+ */
+static void emac_tx_done(struct net_device *dev, struct emac_board_info *db,
+			  unsigned int tx_status)
+{
+	/* One packet sent complete */
+	db->tx_fifo_stat &= ~(tx_status & 3);
+	if (3 == (tx_status & 3))
+		dev->stats.tx_packets += 2;
+	else
+		dev->stats.tx_packets++;
+
+	if (netif_msg_tx_done(db))
+		dev_dbg(db->dev, "tx done, NSR %02x\n", tx_status);
+
+	netif_wake_queue(dev);
+}
+
+/* Received a packet and pass to upper layer
+ */
+static void emac_rx(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+	struct sk_buff *skb;
+	u8 *rdptr;
+	bool good_packet;
+	static int rxlen_last;
+	unsigned int reg_val;
+	u32 rxhdr, rxstatus, rxcount, rxlen;
+
+	/* Check packet ready or not */
+	while (1) {
+		/* race warning: the first packet might arrive with
+		 * the interrupts disabled, but the second will fix
+		 * it
+		 */
+		rxcount = readl(db->membase + EMAC_RX_FBC_REG);
+
+		if (netif_msg_rx_status(db))
+			dev_dbg(db->dev, "RXCount: %x\n", rxcount);
+
+		if ((db->skb_last != NULL) && (rxlen_last > 0)) {
+			dev->stats.rx_bytes += rxlen_last;
+
+			/* Pass to upper layer */
+			db->skb_last->protocol = eth_type_trans(db->skb_last,
+								dev);
+			netif_rx(db->skb_last);
+			dev->stats.rx_packets++;
+			db->skb_last = NULL;
+			rxlen_last = 0;
+
+			reg_val = readl(db->membase + EMAC_RX_CTL_REG);
+			reg_val &= ~EMAC_RX_CTL_DMA_EN;
+			writel(reg_val, db->membase + EMAC_RX_CTL_REG);
+		}
+
+		if (!rxcount) {
+			db->emacrx_completed_flag = 1;
+			reg_val = readl(db->membase + EMAC_INT_CTL_REG);
+			reg_val |= (0xf << 0) | (0x01 << 8);
+			writel(reg_val, db->membase + EMAC_INT_CTL_REG);
+
+			/* had one stuck? */
+			rxcount = readl(db->membase + EMAC_RX_FBC_REG);
+			if (!rxcount)
+				return;
+		}
+
+		reg_val = readl(db->membase + EMAC_RX_IO_DATA_REG);
+		if (netif_msg_rx_status(db))
+			dev_dbg(db->dev, "receive header: %x\n", reg_val);
+		if (reg_val != EMAC_UNDOCUMENTED_MAGIC) {
+			/* disable RX */
+			reg_val = readl(db->membase + EMAC_CTL_REG);
+			writel(reg_val & ~EMAC_CTL_RX_EN,
+			       db->membase + EMAC_CTL_REG);
+
+			/* Flush RX FIFO */
+			reg_val = readl(db->membase + EMAC_RX_CTL_REG);
+			writel(reg_val | (1 << 3),
+			       db->membase + EMAC_RX_CTL_REG);
+
+			do {
+				reg_val = readl(db->membase + EMAC_RX_CTL_REG);
+			} while (reg_val & (1 << 3));
+
+			/* enable RX */
+			reg_val = readl(db->membase + EMAC_CTL_REG);
+			writel(reg_val | EMAC_CTL_RX_EN,
+			       db->membase + EMAC_CTL_REG);
+			reg_val = readl(db->membase + EMAC_INT_CTL_REG);
+			reg_val |= (0xf << 0) | (0x01 << 8);
+			writel(reg_val, db->membase + EMAC_INT_CTL_REG);
+
+			db->emacrx_completed_flag = 1;
+
+			return;
+		}
+
+		/* A packet ready now  & Get status/length */
+		good_packet = true;
+
+		emac_inblk_32bit(db->membase + EMAC_RX_IO_DATA_REG,
+				&rxhdr, sizeof(rxhdr));
+
+		if (netif_msg_rx_status(db))
+			dev_dbg(db->dev, "rxhdr: %x\n", *((int *)(&rxhdr)));
+
+		rxlen = EMAC_RX_IO_DATA_LEN(rxhdr);
+		rxstatus = EMAC_RX_IO_DATA_STATUS(rxhdr);
+
+		if (netif_msg_rx_status(db))
+			dev_dbg(db->dev, "RX: status %02x, length %04x\n",
+				rxstatus, rxlen);
+
+		/* Packet Status check */
+		if (rxlen < 0x40) {
+			good_packet = false;
+			if (netif_msg_rx_err(db))
+				dev_dbg(db->dev, "RX: Bad Packet (runt)\n");
+		}
+
+		if (unlikely(!(rxstatus & EMAC_RX_IO_DATA_STATUS_OK))) {
+			good_packet = false;
+
+			if (rxstatus & EMAC_RX_IO_DATA_STATUS_CRC_ERR) {
+				if (netif_msg_rx_err(db))
+					dev_dbg(db->dev, "crc error\n");
+				dev->stats.rx_crc_errors++;
+			}
+
+			if (rxstatus & EMAC_RX_IO_DATA_STATUS_LEN_ERR) {
+				if (netif_msg_rx_err(db))
+					dev_dbg(db->dev, "length error\n");
+				dev->stats.rx_length_errors++;
+			}
+		}
+
+		/* Move data from EMAC */
+		skb = dev_alloc_skb(rxlen + 4);
+		if (good_packet && skb) {
+			skb_reserve(skb, 2);
+			rdptr = (u8 *) skb_put(skb, rxlen - 4);
+
+			/* Read received packet from RX SRAM */
+			if (netif_msg_rx_status(db))
+				dev_dbg(db->dev, "RxLen %x\n", rxlen);
+
+			emac_inblk_32bit(db->membase + EMAC_RX_IO_DATA_REG,
+					rdptr, rxlen);
+			dev->stats.rx_bytes += rxlen;
+
+			/* Pass to upper layer */
+			skb->protocol = eth_type_trans(skb, dev);
+			netif_rx(skb);
+			dev->stats.rx_packets++;
+		}
+	}
+}
+
+static irqreturn_t emac_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct emac_board_info *db = netdev_priv(dev);
+	int int_status;
+	unsigned long flags;
+	unsigned int reg_val;
+
+	/* A real interrupt coming */
+
+	/* holders of db->lock must always block IRQs */
+	spin_lock_irqsave(&db->lock, flags);
+
+	/* Disable all interrupts */
+	writel(0, db->membase + EMAC_INT_CTL_REG);
+
+	/* Got EMAC interrupt status */
+	/* Got ISR */
+	int_status = readl(db->membase + EMAC_INT_STA_REG);
+	/* Clear ISR status */
+	writel(int_status, db->membase + EMAC_INT_STA_REG);
+
+	if (netif_msg_intr(db))
+		dev_dbg(db->dev, "emac interrupt %02x\n", int_status);
+
+	/* Received the coming packet */
+	if ((int_status & 0x100) && (db->emacrx_completed_flag == 1)) {
+		/* carrier lost */
+		db->emacrx_completed_flag = 0;
+		emac_rx(dev);
+	}
+
+	/* Transmit Interrupt check */
+	if (int_status & (0x01 | 0x02))
+		emac_tx_done(dev, db, int_status);
+
+	if (int_status & (0x04 | 0x08))
+		netdev_info(dev, " ab : %x\n", int_status);
+
+	/* Re-enable interrupt mask */
+	if (db->emacrx_completed_flag == 1) {
+		reg_val = readl(db->membase + EMAC_INT_CTL_REG);
+		reg_val |= (0xf << 0) | (0x01 << 8);
+		writel(reg_val, db->membase + EMAC_INT_CTL_REG);
+	}
+	spin_unlock_irqrestore(&db->lock, flags);
+
+	return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Used by netconsole
+ */
+static void emac_poll_controller(struct net_device *dev)
+{
+	disable_irq(dev->irq);
+	emac_interrupt(dev->irq, dev);
+	enable_irq(dev->irq);
+}
+#endif
+
+/*  Open the interface.
+ *  The interface is opened whenever "ifconfig" actives it.
+ */
+static int emac_open(struct net_device *dev)
+{
+	struct emac_board_info *db = netdev_priv(dev);
+	int ret;
+
+	if (netif_msg_ifup(db))
+		dev_dbg(db->dev, "enabling %s\n", dev->name);
+
+	if (devm_request_irq(db->dev, dev->irq, &emac_interrupt,
+			     0, dev->name, dev))
+		return -EAGAIN;
+
+	/* Initialize EMAC board */
+	emac_reset(db);
+	emac_init_device(dev);
+
+	ret = emac_mdio_probe(dev);
+	if (ret < 0) {
+		netdev_err(dev, "cannot probe MDIO bus\n");
+		return ret;
+	}
+
+	phy_start(db->phy_dev);
+	netif_start_queue(dev);
+
+	return 0;
+}
+
+static void emac_shutdown(struct net_device *dev)
+{
+	unsigned int reg_val;
+	struct emac_board_info *db = netdev_priv(dev);
+
+	/* Disable all interrupt */
+	writel(0, db->membase + EMAC_INT_CTL_REG);
+
+	/* clear interupt status */
+	reg_val = readl(db->membase + EMAC_INT_STA_REG);
+	writel(reg_val, db->membase + EMAC_INT_STA_REG);
+
+	/* Disable RX/TX */
+	reg_val = readl(db->membase + EMAC_CTL_REG);
+	reg_val &= ~(EMAC_CTL_TX_EN | EMAC_CTL_RX_EN | EMAC_CTL_RESET);
+	writel(reg_val, db->membase + EMAC_CTL_REG);
+}
+
+/* Stop the interface.
+ * The interface is stopped when it is brought.
+ */
+static int emac_stop(struct net_device *ndev)
+{
+	struct emac_board_info *db = netdev_priv(ndev);
+
+	if (netif_msg_ifdown(db))
+		dev_dbg(db->dev, "shutting down %s\n", ndev->name);
+
+	netif_stop_queue(ndev);
+	netif_carrier_off(ndev);
+
+	phy_stop(db->phy_dev);
+
+	emac_mdio_remove(ndev);
+
+	emac_shutdown(ndev);
+
+	return 0;
+}
+
+static const struct net_device_ops emac_netdev_ops = {
+	.ndo_open		= emac_open,
+	.ndo_stop		= emac_stop,
+	.ndo_start_xmit		= emac_start_xmit,
+	.ndo_tx_timeout		= emac_timeout,
+	.ndo_do_ioctl		= emac_ioctl,
+	.ndo_change_mtu		= eth_change_mtu,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= emac_set_mac_address,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller	= emac_poll_controller,
+#endif
+};
+
+/* Search EMAC board, allocate space and register it
+ */
+static int emac_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct emac_board_info *db;
+	struct net_device *ndev;
+	int ret = 0;
+	const char *mac_addr;
+
+	ndev = alloc_etherdev(sizeof(struct emac_board_info));
+	if (!ndev) {
+		dev_err(&pdev->dev, "could not allocate device.\n");
+		return -ENOMEM;
+	}
+
+	SET_NETDEV_DEV(ndev, &pdev->dev);
+
+	db = netdev_priv(ndev);
+	memset(db, 0, sizeof(*db));
+
+	db->dev = &pdev->dev;
+	db->ndev = ndev;
+	db->pdev = pdev;
+
+	spin_lock_init(&db->lock);
+
+	db->membase = of_iomap(np, 0);
+	if (!db->membase) {
+		dev_err(&pdev->dev, "failed to remap registers\n");
+		return -ENOMEM;
+		goto out;
+	}
+
+	/* fill in parameters for net-dev structure */
+	ndev->base_addr = (unsigned long)db->membase;
+	ndev->irq = irq_of_parse_and_map(np, 0);
+	if (ndev->irq == -ENXIO) {
+		netdev_err(ndev, "No irq resource\n");
+		ret = ndev->irq;
+		goto out;
+	}
+
+	db->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(db->clk))
+		goto out;
+
+	clk_prepare_enable(db->clk);
+
+	db->phy_node = of_parse_phandle(np, "phy", 0);
+	if (!db->phy_node) {
+		dev_err(&pdev->dev, "no associated PHY\n");
+		ret = -ENODEV;
+		goto out;
+	}
+
+	/* Read MAC-address from DT */
+	mac_addr = of_get_mac_address(np);
+	if (mac_addr)
+		memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);
+
+	/* Check if the MAC address is valid, if not get a random one */
+	if (!is_valid_ether_addr(ndev->dev_addr)) {
+		eth_hw_addr_random(ndev);
+		dev_warn(&pdev->dev, "using random MAC address %pM\n",
+			 ndev->dev_addr);
+	}
+
+	db->emacrx_completed_flag = 1;
+	emac_powerup(ndev);
+	emac_reset(db);
+
+	ether_setup(ndev);
+
+	ndev->netdev_ops = &emac_netdev_ops;
+	ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
+	ndev->ethtool_ops = &emac_ethtool_ops;
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	ndev->poll_controller = &emac_poll_controller;
+#endif
+
+	platform_set_drvdata(pdev, ndev);
+
+	/* Carrier starts down, phylib will bring it up */
+	netif_carrier_off(ndev);
+
+	ret = register_netdev(ndev);
+	if (ret) {
+		dev_err(&pdev->dev, "Registering netdev failed!\n");
+		ret = -ENODEV;
+		goto out;
+	}
+
+	dev_info(&pdev->dev, "%s: at %p, IRQ %d MAC: %pM\n",
+		 ndev->name, db->membase, ndev->irq, ndev->dev_addr);
+
+	return 0;
+
+out:
+	dev_err(db->dev, "not found (%d).\n", ret);
+
+	free_netdev(ndev);
+
+	return ret;
+}
+
+static int emac_remove(struct platform_device *pdev)
+{
+	struct net_device *ndev = platform_get_drvdata(pdev);
+
+	platform_set_drvdata(pdev, NULL);
+
+	unregister_netdev(ndev);
+	free_netdev(ndev);
+
+	dev_dbg(&pdev->dev, "released and freed device\n");
+	return 0;
+}
+
+static int emac_suspend(struct platform_device *dev, pm_message_t state)
+{
+	struct net_device *ndev = platform_get_drvdata(dev);
+
+	netif_carrier_off(ndev);
+	netif_device_detach(ndev);
+	emac_shutdown(ndev);
+
+	return 0;
+}
+
+static int emac_resume(struct platform_device *dev)
+{
+	struct net_device *ndev = platform_get_drvdata(dev);
+	struct emac_board_info *db = netdev_priv(ndev);
+
+	emac_reset(db);
+	emac_init_device(ndev);
+	netif_device_attach(ndev);
+
+	return 0;
+}
+
+static const struct of_device_id emac_of_match[] = {
+	{.compatible = "allwinner,sun4i-emac",},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, emac_of_match);
+
+static struct platform_driver emac_driver = {
+	.driver = {
+		.name = "sun4i-emac",
+		.of_match_table = emac_of_match,
+	},
+	.probe = emac_probe,
+	.remove = emac_remove,
+	.suspend = emac_suspend,
+	.resume = emac_resume,
+};
+
+module_platform_driver(emac_driver);
+
+MODULE_AUTHOR("Stefan Roese <sr@denx.de>");
+MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
+MODULE_DESCRIPTION("Allwinner A10 emac network driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.h b/drivers/net/ethernet/allwinner/sun4i-emac.h
new file mode 100644
index 0000000..38c72d9
--- /dev/null
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.h
@@ -0,0 +1,108 @@
+/*
+ * Allwinner EMAC Fast Ethernet driver for Linux.
+ *
+ * Copyright 2012 Stefan Roese <sr@denx.de>
+ * Copyright 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * Based on the Linux driver provided by Allwinner:
+ * Copyright (C) 1997  Sten Wang
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef _SUN4I_EMAC_H_
+#define _SUN4I_EMAC_H_
+
+#define EMAC_CTL_REG		(0x00)
+#define EMAC_CTL_RESET			(1 << 0)
+#define EMAC_CTL_TX_EN			(1 << 1)
+#define EMAC_CTL_RX_EN			(1 << 2)
+#define EMAC_TX_MODE_REG	(0x04)
+#define EMAC_TX_MODE_ABORTED_FRAME_EN	(1 << 0)
+#define EMAC_TX_MODE_DMA_EN		(1 << 1)
+#define EMAC_TX_FLOW_REG	(0x08)
+#define EMAC_TX_CTL0_REG	(0x0c)
+#define EMAC_TX_CTL1_REG	(0x10)
+#define EMAC_TX_INS_REG		(0x14)
+#define EMAC_TX_PL0_REG		(0x18)
+#define EMAC_TX_PL1_REG		(0x1c)
+#define EMAC_TX_STA_REG		(0x20)
+#define EMAC_TX_IO_DATA_REG	(0x24)
+#define EMAC_TX_IO_DATA1_REG	(0x28)
+#define EMAC_TX_TSVL0_REG	(0x2c)
+#define EMAC_TX_TSVH0_REG	(0x30)
+#define EMAC_TX_TSVL1_REG	(0x34)
+#define EMAC_TX_TSVH1_REG	(0x38)
+#define EMAC_RX_CTL_REG		(0x3c)
+#define EMAC_RX_CTL_AUTO_DRQ_EN		(1 << 1)
+#define EMAC_RX_CTL_DMA_EN		(1 << 2)
+#define EMAC_RX_CTL_PASS_ALL_EN		(1 << 4)
+#define EMAC_RX_CTL_PASS_CTL_EN		(1 << 5)
+#define EMAC_RX_CTL_PASS_CRC_ERR_EN	(1 << 6)
+#define EMAC_RX_CTL_PASS_LEN_ERR_EN	(1 << 7)
+#define EMAC_RX_CTL_PASS_LEN_OOR_EN	(1 << 8)
+#define EMAC_RX_CTL_ACCEPT_UNICAST_EN	(1 << 16)
+#define EMAC_RX_CTL_DA_FILTER_EN	(1 << 17)
+#define EMAC_RX_CTL_ACCEPT_MULTICAST_EN	(1 << 20)
+#define EMAC_RX_CTL_HASH_FILTER_EN	(1 << 21)
+#define EMAC_RX_CTL_ACCEPT_BROADCAST_EN	(1 << 22)
+#define EMAC_RX_CTL_SA_FILTER_EN	(1 << 24)
+#define EMAC_RX_CTL_SA_FILTER_INVERT_EN	(1 << 25)
+#define EMAC_RX_HASH0_REG	(0x40)
+#define EMAC_RX_HASH1_REG	(0x44)
+#define EMAC_RX_STA_REG		(0x48)
+#define EMAC_RX_IO_DATA_REG	(0x4c)
+#define EMAC_RX_IO_DATA_LEN(x)		(x & 0xffff)
+#define EMAC_RX_IO_DATA_STATUS(x)	((x >> 16) & 0xffff)
+#define EMAC_RX_IO_DATA_STATUS_CRC_ERR	(1 << 4)
+#define EMAC_RX_IO_DATA_STATUS_LEN_ERR	(3 << 5)
+#define EMAC_RX_IO_DATA_STATUS_OK	(1 << 7)
+#define EMAC_RX_FBC_REG		(0x50)
+#define EMAC_INT_CTL_REG	(0x54)
+#define EMAC_INT_STA_REG	(0x58)
+#define EMAC_MAC_CTL0_REG	(0x5c)
+#define EMAC_MAC_CTL0_RX_FLOW_CTL_EN	(1 << 2)
+#define EMAC_MAC_CTL0_TX_FLOW_CTL_EN	(1 << 3)
+#define EMAC_MAC_CTL0_SOFT_RESET	(1 << 15)
+#define EMAC_MAC_CTL1_REG	(0x60)
+#define EMAC_MAC_CTL1_DUPLEX_EN		(1 << 0)
+#define EMAC_MAC_CTL1_LEN_CHECK_EN	(1 << 1)
+#define EMAC_MAC_CTL1_HUGE_FRAME_EN	(1 << 2)
+#define EMAC_MAC_CTL1_DELAYED_CRC_EN	(1 << 3)
+#define EMAC_MAC_CTL1_CRC_EN		(1 << 4)
+#define EMAC_MAC_CTL1_PAD_EN		(1 << 5)
+#define EMAC_MAC_CTL1_PAD_CRC_EN	(1 << 6)
+#define EMAC_MAC_CTL1_AD_SHORT_FRAME_EN	(1 << 7)
+#define EMAC_MAC_CTL1_BACKOFF_DIS	(1 << 12)
+#define EMAC_MAC_IPGT_REG	(0x64)
+#define EMAC_MAC_IPGT_HALF_DUPLEX	(0x12)
+#define EMAC_MAC_IPGT_FULL_DUPLEX	(0x15)
+#define EMAC_MAC_IPGR_REG	(0x68)
+#define EMAC_MAC_IPGR_IPG1		(0x0c)
+#define EMAC_MAC_IPGR_IPG2		(0x12)
+#define EMAC_MAC_CLRT_REG	(0x6c)
+#define EMAC_MAC_CLRT_COLLISION_WINDOW	(0x37)
+#define EMAC_MAC_CLRT_RM		(0x0f)
+#define EMAC_MAC_MAXF_REG	(0x70)
+#define EMAC_MAC_SUPP_REG	(0x74)
+#define EMAC_MAC_TEST_REG	(0x78)
+#define EMAC_MAC_MCFG_REG	(0x7c)
+#define EMAC_MAC_A0_REG		(0x98)
+#define EMAC_MAC_A1_REG		(0x9c)
+#define EMAC_MAC_A2_REG		(0xa0)
+#define EMAC_SAFX_L_REG0	(0xa4)
+#define EMAC_SAFX_H_REG0	(0xa8)
+#define EMAC_SAFX_L_REG1	(0xac)
+#define EMAC_SAFX_H_REG1	(0xb0)
+#define EMAC_SAFX_L_REG2	(0xb4)
+#define EMAC_SAFX_H_REG2	(0xb8)
+#define EMAC_SAFX_L_REG3	(0xbc)
+#define EMAC_SAFX_H_REG3	(0xc0)
+
+#define EMAC_PHY_DUPLEX		(1 << 8)
+
+#define EMAC_EEPROM_MAGIC	(0x444d394b)
+#define EMAC_UNDOCUMENTED_MAGIC	(0x0143414d)
+#endif /* _SUN4I_EMAC_H_ */
-- 
cgit v0.10.2


From 4bdcb1dd9feb03608e12cfa46aba385035af8ea5 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Thu, 30 May 2013 03:49:21 +0000
Subject: net: Add MDIO bus driver for the Allwinner EMAC

This patch adds a separate driver for the MDIO interface of the
Allwinner ethernet controllers.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt b/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt
new file mode 100644
index 0000000..00b9f9a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt
@@ -0,0 +1,26 @@
+* Allwinner A10 MDIO Ethernet Controller interface
+
+Required properties:
+- compatible: should be "allwinner,sun4i-mdio".
+- reg: address and length of the register set for the device.
+
+Optional properties:
+- phy-supply: phandle to a regulator if the PHY needs one
+
+Example at the SoC level:
+mdio@01c0b080 {
+	compatible = "allwinner,sun4i-mdio";
+	reg = <0x01c0b080 0x14>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+};
+
+And at the board level:
+
+mdio@01c0b080 {
+	phy-supply = <&reg_emac_3v3>;
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+	};
+};
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 1e11f2b..3a316b3 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -144,6 +144,16 @@ config MDIO_OCTEON
 
 	  If in doubt, say Y.
 
+config MDIO_SUN4I
+	tristate "Allwinner sun4i MDIO interface support"
+	depends on ARCH_SUNXI
+	select REGULATOR
+	select REGULATOR_FIXED_VOLTAGE
+	help
+	  This driver supports the MDIO interface found in the network
+	  interface units of the Allwinner SoC that have an EMAC (A10,
+	  A12, A10s, etc.)
+
 config MDIO_BUS_MUX
 	tristate
 	depends on OF_MDIO
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 9645e38..23a2ab2 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -30,3 +30,4 @@ obj-$(CONFIG_AMD_PHY)		+= amd.o
 obj-$(CONFIG_MDIO_BUS_MUX)	+= mdio-mux.o
 obj-$(CONFIG_MDIO_BUS_MUX_GPIO)	+= mdio-mux-gpio.o
 obj-$(CONFIG_MDIO_BUS_MUX_MMIOREG) += mdio-mux-mmioreg.o
+obj-$(CONFIG_MDIO_SUN4I)	+= mdio-sun4i.o
diff --git a/drivers/net/phy/mdio-sun4i.c b/drivers/net/phy/mdio-sun4i.c
new file mode 100644
index 0000000..61d3f4e
--- /dev/null
+++ b/drivers/net/phy/mdio-sun4i.c
@@ -0,0 +1,194 @@
+/*
+ * Allwinner EMAC MDIO interface driver
+ *
+ * Copyright 2012-2013 Stefan Roese <sr@denx.de>
+ * Copyright 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * Based on the Linux driver provided by Allwinner:
+ * Copyright (C) 1997  Sten Wang
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_address.h>
+#include <linux/of_mdio.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+
+#define EMAC_MAC_MCMD_REG	(0x00)
+#define EMAC_MAC_MADR_REG	(0x04)
+#define EMAC_MAC_MWTD_REG	(0x08)
+#define EMAC_MAC_MRDD_REG	(0x0c)
+#define EMAC_MAC_MIND_REG	(0x10)
+#define EMAC_MAC_SSRR_REG	(0x14)
+
+#define MDIO_TIMEOUT		(msecs_to_jiffies(100))
+
+struct sun4i_mdio_data {
+	void __iomem		*membase;
+	struct regulator	*regulator;
+};
+
+static int sun4i_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
+{
+	struct sun4i_mdio_data *data = bus->priv;
+	unsigned long start_jiffies;
+	int value;
+
+	/* issue the phy address and reg */
+	writel((mii_id << 8) | regnum, data->membase + EMAC_MAC_MADR_REG);
+	/* pull up the phy io line */
+	writel(0x1, data->membase + EMAC_MAC_MCMD_REG);
+
+	/* Wait read complete */
+	start_jiffies = jiffies;
+	while (readl(data->membase + EMAC_MAC_MIND_REG) & 0x1) {
+		if (time_after(start_jiffies,
+			       start_jiffies + MDIO_TIMEOUT))
+			return -ETIMEDOUT;
+		msleep(1);
+	}
+
+	/* push down the phy io line */
+	writel(0x0, data->membase + EMAC_MAC_MCMD_REG);
+	/* and read data */
+	value = readl(data->membase + EMAC_MAC_MRDD_REG);
+
+	return value;
+}
+
+static int sun4i_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
+			    u16 value)
+{
+	struct sun4i_mdio_data *data = bus->priv;
+	unsigned long start_jiffies;
+
+	/* issue the phy address and reg */
+	writel((mii_id << 8) | regnum, data->membase + EMAC_MAC_MADR_REG);
+	/* pull up the phy io line */
+	writel(0x1, data->membase + EMAC_MAC_MCMD_REG);
+
+	/* Wait read complete */
+	start_jiffies = jiffies;
+	while (readl(data->membase + EMAC_MAC_MIND_REG) & 0x1) {
+		if (time_after(start_jiffies,
+			       start_jiffies + MDIO_TIMEOUT))
+			return -ETIMEDOUT;
+		msleep(1);
+	}
+
+	/* push down the phy io line */
+	writel(0x0, data->membase + EMAC_MAC_MCMD_REG);
+	/* and write data */
+	writel(value, data->membase + EMAC_MAC_MWTD_REG);
+
+	return 0;
+}
+
+static int sun4i_mdio_reset(struct mii_bus *bus)
+{
+	return 0;
+}
+
+static int sun4i_mdio_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct mii_bus *bus;
+	struct sun4i_mdio_data *data;
+	int ret, i;
+
+	bus = mdiobus_alloc_size(sizeof(*data));
+	if (!bus)
+		return -ENOMEM;
+
+	bus->name = "sun4i_mii_bus";
+	bus->read = &sun4i_mdio_read;
+	bus->write = &sun4i_mdio_write;
+	bus->reset = &sun4i_mdio_reset;
+	snprintf(bus->id, MII_BUS_ID_SIZE, "%s-mii", dev_name(&pdev->dev));
+	bus->parent = &pdev->dev;
+
+	bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
+	if (!bus->irq) {
+		ret = -ENOMEM;
+		goto err_out_free_mdiobus;
+	}
+
+	for (i = 0; i < PHY_MAX_ADDR; i++)
+		bus->irq[i] = PHY_POLL;
+
+	data = bus->priv;
+	data->membase = of_iomap(np, 0);
+	if (!data->membase) {
+		ret = -ENOMEM;
+		goto err_out_free_mdio_irq;
+	}
+
+	data->regulator = devm_regulator_get(&pdev->dev, "phy");
+	if (IS_ERR(data->regulator)) {
+		if (PTR_ERR(data->regulator) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+
+		dev_info(&pdev->dev, "no regulator found\n");
+	} else {
+		ret = regulator_enable(data->regulator);
+		if (ret)
+			goto err_out_free_mdio_irq;
+	}
+
+	ret = of_mdiobus_register(bus, np);
+	if (ret < 0)
+		goto err_out_disable_regulator;
+
+	platform_set_drvdata(pdev, bus);
+
+	return 0;
+
+err_out_disable_regulator:
+	regulator_disable(data->regulator);
+err_out_free_mdio_irq:
+	kfree(bus->irq);
+err_out_free_mdiobus:
+	mdiobus_free(bus);
+	return ret;
+}
+
+static int sun4i_mdio_remove(struct platform_device *pdev)
+{
+	struct mii_bus *bus = platform_get_drvdata(pdev);
+
+	mdiobus_unregister(bus);
+	kfree(bus->irq);
+	mdiobus_free(bus);
+
+	return 0;
+}
+
+static const struct of_device_id sun4i_mdio_dt_ids[] = {
+	{ .compatible = "allwinner,sun4i-mdio" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sun4i_mdio_dt_ids);
+
+static struct platform_driver sun4i_mdio_driver = {
+	.probe = sun4i_mdio_probe,
+	.remove = sun4i_mdio_remove,
+	.driver = {
+		.name = "sun4i-mdio",
+		.of_match_table = sun4i_mdio_dt_ids,
+	},
+};
+
+module_platform_driver(sun4i_mdio_driver);
+
+MODULE_DESCRIPTION("Allwinner EMAC MDIO interface driver");
+MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
+MODULE_LICENSE("GPL");
-- 
cgit v0.10.2


From b21da664120b1c8332fc5059a1e7c1462dd26433 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Thu, 30 May 2013 03:49:22 +0000
Subject: ARM: sun4i: Add muxing options for the ethernet controller

The EMAC only has one pinset available for muxing, so hopefully, we
cover all cases.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index e7ef619..ff1f41f 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -199,6 +199,17 @@
 				allwinner,drive = <0>;
 				allwinner,pull = <0>;
 			};
+
+			emac_pins_a: emac0@0 {
+				allwinner,pins = "PA0", "PA1", "PA2",
+						"PA3", "PA4", "PA5", "PA6",
+						"PA7", "PA8", "PA9", "PA10",
+						"PA11", "PA12", "PA13", "PA14",
+						"PA15", "PA16";
+				allwinner,function = "emac";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
 		};
 
 		timer@01c20c00 {
-- 
cgit v0.10.2


From e38afcb33ff4b472254c8f6f140699e002c44d84 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Thu, 30 May 2013 03:49:23 +0000
Subject: ARM: sunxi: Add EMAC controller node to sun4i DTSI

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index ff1f41f..983da33 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -163,6 +163,22 @@
 		reg = <0x01c20000 0x300000>;
 		ranges;
 
+		emac: ethernet@01c0b000 {
+			compatible = "allwinner,sun4i-emac";
+			reg = <0x01c0b000 0x1000>;
+			interrupts = <55>;
+			clocks = <&ahb_gates 17>;
+			status = "disabled";
+		};
+
+		mdio@01c0b080 {
+			compatible = "allwinner,sun4i-mdio";
+			reg = <0x01c0b080 0x14>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
 		intc: interrupt-controller@01c20400 {
 			compatible = "allwinner,sun4i-ic";
 			reg = <0x01c20400 0x400>;
-- 
cgit v0.10.2


From e5a84bac5d6797c64541f87e7a567d56699bbb74 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Thu, 30 May 2013 03:49:24 +0000
Subject: ARM: cubieboard: Enable ethernet (EMAC) support in dts

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
index b70fe0d..e752b57 100644
--- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
@@ -27,6 +27,21 @@
 	};
 
 	soc@01c20000 {
+		emac: ethernet@01c0b000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&emac_pins_a>;
+			phy = <&phy1>;
+			status = "okay";
+		};
+
+		mdio@01c0b080 {
+			status = "okay";
+
+			phy1: ethernet-phy@1 {
+				reg = <1>;
+			};
+		};
+
 		pinctrl@01c20800 {
 			led_pins_cubieboard: led_pins@0 {
 				allwinner,pins = "PH20", "PH21";
-- 
cgit v0.10.2


From d97a079a79a7dcbc2470572b41cd1f07a16d8b7f Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Thu, 30 May 2013 03:49:25 +0000
Subject: ARM: sunxi: Add EMAC Controller to Hackberry dt

The Hackberry has a PHY that needs to be powered up through a GPIO, so
we need to use a fixed regulator here.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/boot/dts/sun4i-a10-hackberry.dts b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
index b9efac1..3514b37 100644
--- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
@@ -23,10 +23,51 @@
 	};
 
 	soc@01c20000 {
+		emac: ethernet@01c0b000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&emac_pins_a>;
+			phy = <&phy0>;
+			status = "okay";
+		};
+
+		mdio@01c0b080 {
+			phy-supply = <&reg_emac_3v3>;
+			status = "okay";
+
+			phy0: ethernet-phy@0 {
+				reg = <0>;
+			};
+		};
+
+		pio: pinctrl@01c20800 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&hackberry_hogs>;
+
+			hackberry_hogs: hogs@0 {
+				allwinner,pins = "PH19";
+				allwinner,function = "gpio_out";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+		};
+
 		uart0: serial@01c28000 {
 			pinctrl-names = "default";
 			pinctrl-0 = <&uart0_pins_a>;
 			status = "okay";
 		};
 	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		reg_emac_3v3: emac-3v3 {
+			compatible = "regulator-fixed";
+			regulator-name = "emac-3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			enable-active-high;
+			gpio = <&pio 7 19 0>;
+		};
+	};
 };
-- 
cgit v0.10.2


From 28a19fe60f4f31cbd349f8473f0483aa7500acf5 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Wed, 29 May 2013 20:22:01 +0000
Subject: drivers: net: davinci_cpdma: remove CRC bytes from skb added by CPDMA

Additional 4 bytes found in the skb is the CRC calculated by the
CPDMA hardware, check the CRC bit in CPDMA status field of
Descriptor and remove the CRC length from the skb. This extra
4 byte can be seen when capturing packets using tcpdump.
This has been tested in TI816x platform.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index 49dfd59..a377bc7 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -64,6 +64,7 @@
 #define CPDMA_DESC_TO_PORT_EN	BIT(20)
 #define CPDMA_TO_PORT_SHIFT	16
 #define CPDMA_DESC_PORT_MASK	(BIT(18) | BIT(17) | BIT(16))
+#define CPDMA_DESC_CRC_LEN	4
 
 #define CPDMA_TEARDOWN_VALUE	0xfffffffc
 
@@ -798,6 +799,10 @@ static int __cpdma_chan_process(struct cpdma_chan *chan)
 		status = -EBUSY;
 		goto unlock_ret;
 	}
+
+	if (status & CPDMA_DESC_PASS_CRC)
+		outlen -= CPDMA_DESC_CRC_LEN;
+
 	status	= status & (CPDMA_DESC_EOQ | CPDMA_DESC_TD_COMPLETE |
 			    CPDMA_DESC_PORT_MASK);
 
-- 
cgit v0.10.2


From 5c510811547f88522b00623417b97d9fba85a06b Mon Sep 17 00:00:00 2001
From: Somnath Kotur <somnath.kotur@emulex.com>
Date: Thu, 30 May 2013 02:52:23 +0000
Subject: be2net: Implement initiate FW dump feature for Lancer

Added code to initiate FW dump via ethtool. Driver checks if the previous dump
has been cleared before initiating the dump. It doesn't initiate the dump
if it is not cleared.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index edce38b..fcc30a2 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -332,6 +332,9 @@ enum vf_state {
 #define BE_VF_UC_PMAC_COUNT		2
 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD		(1 << 11)
 
+/* Ethtool set_dump flags */
+#define LANCER_INITIATE_FW_DUMP			0x1
+
 struct phy_info {
 	u8 transceiver;
 	u8 autoneg;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index a236ecd..4d0ec36 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -3255,6 +3255,72 @@ err:
 	return status;
 }
 
+static int lancer_wait_idle(struct be_adapter *adapter)
+{
+#define SLIPORT_IDLE_TIMEOUT 30
+	u32 reg_val;
+	int status = 0, i;
+
+	for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
+		reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
+		if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
+			break;
+
+		ssleep(1);
+	}
+
+	if (i == SLIPORT_IDLE_TIMEOUT)
+		status = -1;
+
+	return status;
+}
+
+int lancer_physdev_ctrl(struct be_adapter *adapter, u32 mask)
+{
+	int status = 0;
+
+	status = lancer_wait_idle(adapter);
+	if (status)
+		return status;
+
+	iowrite32(mask, adapter->db + PHYSDEV_CONTROL_OFFSET);
+
+	return status;
+}
+
+/* Routine to check whether dump image is present or not */
+bool dump_present(struct be_adapter *adapter)
+{
+	u32 sliport_status = 0;
+
+	sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
+	return !!(sliport_status & SLIPORT_STATUS_DIP_MASK);
+}
+
+int lancer_initiate_dump(struct be_adapter *adapter)
+{
+	int status;
+
+	/* give firmware reset and diagnostic dump */
+	status = lancer_physdev_ctrl(adapter, PHYSDEV_CONTROL_FW_RESET_MASK |
+				     PHYSDEV_CONTROL_DD_MASK);
+	if (status < 0) {
+		dev_err(&adapter->pdev->dev, "Firmware reset failed\n");
+		return status;
+	}
+
+	status = lancer_wait_idle(adapter);
+	if (status)
+		return status;
+
+	if (!dump_present(adapter)) {
+		dev_err(&adapter->pdev->dev, "Dump image not present\n");
+		return -1;
+	}
+
+	return 0;
+}
+
 /* Uses sync mcc */
 int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain)
 {
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 025bdb0..5228d88 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1937,6 +1937,9 @@ extern int be_cmd_set_ext_fat_capabilites(struct be_adapter *adapter,
 					  struct be_dma_mem *cmd,
 					  struct be_fat_conf_params *cfgs);
 extern int lancer_wait_ready(struct be_adapter *adapter);
+extern int lancer_physdev_ctrl(struct be_adapter *adapter, u32 mask);
+extern int lancer_initiate_dump(struct be_adapter *adapter);
+extern bool dump_present(struct be_adapter *adapter);
 extern int lancer_test_and_set_rdy_state(struct be_adapter *adapter);
 extern int be_cmd_query_port_name(struct be_adapter *adapter, u8 *port_name);
 extern int be_cmd_get_func_config(struct be_adapter *adapter);
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index f3ee077..4f8c941 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -669,6 +669,34 @@ be_set_phys_id(struct net_device *netdev,
 	return 0;
 }
 
+static int be_set_dump(struct net_device *netdev, struct ethtool_dump *dump)
+{
+	struct be_adapter *adapter = netdev_priv(netdev);
+	struct device *dev = &adapter->pdev->dev;
+	int status;
+
+	if (!lancer_chip(adapter)) {
+		dev_err(dev, "FW dump not supported\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (dump_present(adapter)) {
+		dev_err(dev, "Previous dump not cleared, not forcing dump\n");
+		return 0;
+	}
+
+	switch (dump->flag) {
+	case LANCER_INITIATE_FW_DUMP:
+		status = lancer_initiate_dump(adapter);
+		if (!status)
+			dev_info(dev, "F/w dump initiated successfully\n");
+		break;
+	default:
+		dev_err(dev, "Invalid dump level: 0x%x\n", dump->flag);
+		return -EINVAL;
+	}
+	return status;
+}
 
 static void
 be_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
@@ -1106,6 +1134,7 @@ const struct ethtool_ops be_ethtool_ops = {
 	.set_pauseparam = be_set_pauseparam,
 	.get_strings = be_get_stat_strings,
 	.set_phys_id = be_set_phys_id,
+	.set_dump = be_set_dump,
 	.get_msglevel = be_get_msg_level,
 	.set_msglevel = be_set_msg_level,
 	.get_sset_count = be_get_sset_count,
diff --git a/drivers/net/ethernet/emulex/benet/be_hw.h b/drivers/net/ethernet/emulex/benet/be_hw.h
index 3c1099b..0311d9b 100644
--- a/drivers/net/ethernet/emulex/benet/be_hw.h
+++ b/drivers/net/ethernet/emulex/benet/be_hw.h
@@ -53,10 +53,12 @@
 #define PHYSDEV_CONTROL_OFFSET		0x414
 
 #define SLIPORT_STATUS_ERR_MASK		0x80000000
+#define SLIPORT_STATUS_DIP_MASK		0x02000000
 #define SLIPORT_STATUS_RN_MASK		0x01000000
 #define SLIPORT_STATUS_RDY_MASK		0x00800000
 #define SLI_PORT_CONTROL_IP_MASK	0x08000000
 #define PHYSDEV_CONTROL_FW_RESET_MASK	0x00000002
+#define PHYSDEV_CONTROL_DD_MASK		0x00000004
 #define PHYSDEV_CONTROL_INP_MASK	0x40000000
 
 #define SLIPORT_ERROR_NO_RESOURCE1	0x2
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 1140a86..5d9044e 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3551,40 +3551,6 @@ static int be_flash_skyhawk(struct be_adapter *adapter,
 	return 0;
 }
 
-static int lancer_wait_idle(struct be_adapter *adapter)
-{
-#define SLIPORT_IDLE_TIMEOUT 30
-	u32 reg_val;
-	int status = 0, i;
-
-	for (i = 0; i < SLIPORT_IDLE_TIMEOUT; i++) {
-		reg_val = ioread32(adapter->db + PHYSDEV_CONTROL_OFFSET);
-		if ((reg_val & PHYSDEV_CONTROL_INP_MASK) == 0)
-			break;
-
-		ssleep(1);
-	}
-
-	if (i == SLIPORT_IDLE_TIMEOUT)
-		status = -1;
-
-	return status;
-}
-
-static int lancer_fw_reset(struct be_adapter *adapter)
-{
-	int status = 0;
-
-	status = lancer_wait_idle(adapter);
-	if (status)
-		return status;
-
-	iowrite32(PHYSDEV_CONTROL_FW_RESET_MASK, adapter->db +
-		  PHYSDEV_CONTROL_OFFSET);
-
-	return status;
-}
-
 static int lancer_fw_download(struct be_adapter *adapter,
 				const struct firmware *fw)
 {
@@ -3662,7 +3628,8 @@ static int lancer_fw_download(struct be_adapter *adapter,
 	}
 
 	if (change_status == LANCER_FW_RESET_NEEDED) {
-		status = lancer_fw_reset(adapter);
+		status = lancer_physdev_ctrl(adapter,
+					     PHYSDEV_CONTROL_FW_RESET_MASK);
 		if (status) {
 			dev_err(&adapter->pdev->dev,
 				"Adapter busy for FW reset.\n"
-- 
cgit v0.10.2


From e69972f52bdc4bc384a21a6561d5673b4a94e989 Mon Sep 17 00:00:00 2001
From: Jay Hernandez <jay@chelsio.com>
Date: Thu, 30 May 2013 03:24:14 +0000
Subject: cxgb4: Force uninitialized state if FW_ON_ADAPTER is < FW_VERSION and
 we're the MASTER_PF

Forcing uninitialized state allows us to upgrade and reinitialize the adapter.

FW_VERSION_T4 = 1.4.0.0
FW_VERSION_T5 = 0.0.0.0
At this point driver supports above and greater than above version of firmware.
If it doesn't find the required firmware version than it forces the adapter to
be reinitialized as shown below.

1) If FW_ON_ADAPTER < FW_VERSION and we're the MASTER_PF force uninitialized
   state and a FW upgrade if available.

       - If FW_ON_ADAPTER < /lib/firmware/cxgb4/t*fw.bin we will update the
         adapters FW.
       - If FW_ON_ADAPTER >= /lib/firmware/cxgb4/t*fw.bin don't upgrade FW.
       - If upgrade_fw() fails force reinitialization of the adapter anyways,
         it might still work.

   Either way forcing the uninitialized state allows cxgb4 reinitialize FW.

2) If FW_ON_ADAPTER >= FW_VERSION driver follows normal path.

Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 681804b..2aafb80 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -51,7 +51,7 @@
 #include "t4_hw.h"
 
 #define FW_VERSION_MAJOR 1
-#define FW_VERSION_MINOR 1
+#define FW_VERSION_MINOR 4
 #define FW_VERSION_MICRO 0
 
 #define FW_VERSION_MAJOR_T5 0
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 3cd397d..5a3256b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -4842,8 +4842,17 @@ static int adap_init0(struct adapter *adap)
 	 * is excessively mismatched relative to the driver.)
 	 */
 	ret = t4_check_fw_version(adap);
+
+	/* The error code -EFAULT is returned by t4_check_fw_version() if
+	 * firmware on adapter < supported firmware. If firmware on adapter
+	 * is too old (not supported by driver) and we're the MASTER_PF set
+	 * adapter state to DEV_STATE_UNINIT to force firmware upgrade
+	 * and reinitialization.
+	 */
+	if ((adap->flags & MASTER_PF) && ret == -EFAULT)
+		state = DEV_STATE_UNINIT;
 	if ((adap->flags & MASTER_PF) && state != DEV_STATE_INIT) {
-		if (ret == -EINVAL || ret > 0) {
+		if (ret == -EINVAL || ret == -EFAULT || ret > 0) {
 			if (upgrade_fw(adap) >= 0) {
 				/*
 				 * Note that the chip was reset as part of the
@@ -4852,7 +4861,21 @@ static int adap_init0(struct adapter *adap)
 				 */
 				reset = 0;
 				ret = t4_check_fw_version(adap);
-			}
+			} else
+				if (ret == -EFAULT) {
+					/*
+					 * Firmware is old but still might
+					 * work if we force reinitialization
+					 * of the adapter. Ignoring FW upgrade
+					 * failure.
+					 */
+					dev_warn(adap->pdev_dev,
+						 "Ignoring firmware upgrade "
+						 "failure, and forcing driver "
+						 "to reinitialize the "
+						 "adapter.\n");
+					ret = 0;
+				}
 		}
 		if (ret < 0)
 			return ret;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index d02d4e8..bff89a4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -938,6 +938,15 @@ int t4_check_fw_version(struct adapter *adapter)
 	memcpy(adapter->params.api_vers, api_vers,
 	       sizeof(adapter->params.api_vers));
 
+	if (major < exp_major || (major == exp_major && minor < exp_minor) ||
+	    (major == exp_major && minor == exp_minor && micro < exp_micro)) {
+		dev_err(adapter->pdev_dev,
+			"Card has firmware version %u.%u.%u, minimum "
+			"supported firmware is %u.%u.%u.\n", major, minor,
+			micro, exp_major, exp_minor, exp_micro);
+		return -EFAULT;
+	}
+
 	if (major != exp_major) {            /* major mismatch - fail */
 		dev_err(adapter->pdev_dev,
 			"card FW has major version %u, driver wants %u\n",
-- 
cgit v0.10.2


From ab1ef141161c158360fab671e72226cffb5f9774 Mon Sep 17 00:00:00 2001
From: Raja Mani <rmani@qca.qualcomm.com>
Date: Tue, 19 Mar 2013 09:48:35 +0530
Subject: ath6kl: Check wmi ready event status before validating abi version

There is no point to check firmware ABI version when the driver
fails to wait for WMI_READY event during the boot time.

For such failures, the driver should assume the firmware is not
booted and start doing cleanup.

Signed-off-by: Raja Mani <rmani@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index 40ffee6..6a67881 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -1696,10 +1696,16 @@ static int __ath6kl_init_hw_start(struct ath6kl *ar)
 						    test_bit(WMI_READY,
 							     &ar->flag),
 						    WMI_TIMEOUT);
+	if (timeleft <= 0) {
+		clear_bit(WMI_READY, &ar->flag);
+		ath6kl_err("wmi is not ready or wait was interrupted: %ld\n",
+			   timeleft);
+		ret = -EIO;
+		goto err_htc_stop;
+	}
 
 	ath6kl_dbg(ATH6KL_DBG_BOOT, "firmware booted\n");
 
-
 	if (test_and_clear_bit(FIRST_BOOT, &ar->flag)) {
 		ath6kl_info("%s %s fw %s api %d%s\n",
 			    ar->hw.name,
@@ -1718,12 +1724,6 @@ static int __ath6kl_init_hw_start(struct ath6kl *ar)
 		goto err_htc_stop;
 	}
 
-	if (!timeleft || signal_pending(current)) {
-		ath6kl_err("wmi is not ready or wait was interrupted\n");
-		ret = -EIO;
-		goto err_htc_stop;
-	}
-
 	ath6kl_dbg(ATH6KL_DBG_TRC, "%s: wmi is ready\n", __func__);
 
 	/* communicate the wmi protocol verision to the target */
-- 
cgit v0.10.2


From ade983307453cf6043454dd9ac08abab5193d704 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Thu, 25 Apr 2013 16:31:22 +0300
Subject: wireless: ath6kl: re-use native helper to parse MAC

There is native mac_pton() function which helps to parse MAC.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index fe38b83..dbfd17d 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -1240,20 +1240,14 @@ static ssize_t ath6kl_force_roam_write(struct file *file,
 	char buf[20];
 	size_t len;
 	u8 bssid[ETH_ALEN];
-	int i;
-	int addr[ETH_ALEN];
 
 	len = min(count, sizeof(buf) - 1);
 	if (copy_from_user(buf, user_buf, len))
 		return -EFAULT;
 	buf[len] = '\0';
 
-	if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
-		   &addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5])
-	    != ETH_ALEN)
+	if (!mac_pton(buf, bssid))
 		return -EINVAL;
-	for (i = 0; i < ETH_ALEN; i++)
-		bssid[i] = addr[i];
 
 	ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid);
 	if (ret)
-- 
cgit v0.10.2


From 0b3d3ff15fa67b5417aae67bdc6252c001b2631d Mon Sep 17 00:00:00 2001
From: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Date: Wed, 15 May 2013 10:22:10 +0530
Subject: ath6kl: Rename USB driver's suspend/resume/reset_resume

Rename USB driver's suspend/resume/reset_resume callbacks
with 'pm' prefix. This is necessary to differentiate it from
cfg80211/hif suspend/resume/reset_resume callbacks.

Cc: Sivanesan Rajapupathi <c_srajap@qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index bed0d33..cf488f8 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -1152,7 +1152,7 @@ static void ath6kl_usb_remove(struct usb_interface *interface)
 
 #ifdef CONFIG_PM
 
-static int ath6kl_usb_suspend(struct usb_interface *interface,
+static int ath6kl_usb_pm_suspend(struct usb_interface *interface,
 			      pm_message_t message)
 {
 	struct ath6kl_usb *device;
@@ -1162,7 +1162,7 @@ static int ath6kl_usb_suspend(struct usb_interface *interface,
 	return 0;
 }
 
-static int ath6kl_usb_resume(struct usb_interface *interface)
+static int ath6kl_usb_pm_resume(struct usb_interface *interface)
 {
 	struct ath6kl_usb *device;
 	device = usb_get_intfdata(interface);
@@ -1175,7 +1175,7 @@ static int ath6kl_usb_resume(struct usb_interface *interface)
 	return 0;
 }
 
-static int ath6kl_usb_reset_resume(struct usb_interface *intf)
+static int ath6kl_usb_pm_reset_resume(struct usb_interface *intf)
 {
 	if (usb_get_intfdata(intf))
 		ath6kl_usb_remove(intf);
@@ -1184,9 +1184,9 @@ static int ath6kl_usb_reset_resume(struct usb_interface *intf)
 
 #else
 
-#define ath6kl_usb_suspend NULL
-#define ath6kl_usb_resume NULL
-#define ath6kl_usb_reset_resume NULL
+#define ath6kl_usb_pm_suspend NULL
+#define ath6kl_usb_pm_resume NULL
+#define ath6kl_usb_pm_reset_resume NULL
 
 #endif
 
@@ -1201,9 +1201,9 @@ MODULE_DEVICE_TABLE(usb, ath6kl_usb_ids);
 static struct usb_driver ath6kl_usb_driver = {
 	.name = "ath6kl_usb",
 	.probe = ath6kl_usb_probe,
-	.suspend = ath6kl_usb_suspend,
-	.resume = ath6kl_usb_resume,
-	.reset_resume = ath6kl_usb_reset_resume,
+	.suspend = ath6kl_usb_pm_suspend,
+	.resume = ath6kl_usb_pm_resume,
+	.reset_resume = ath6kl_usb_pm_reset_resume,
 	.disconnect = ath6kl_usb_remove,
 	.id_table = ath6kl_usb_ids,
 	.supports_autosuspend = true,
-- 
cgit v0.10.2


From 8c40e4e0e158aca76c657533ae57fa3e33655778 Mon Sep 17 00:00:00 2001
From: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Date: Wed, 15 May 2013 10:22:24 +0530
Subject: ath6kl: Fix a suspend/resume crash in AR6004 USB

cfg80211 suspend/resume callbacks are not yet implemented
for AR6004 USB. Introduce dummy handlers for these to avoid
NULL pointer dereference.

Cc: Sivanesan Rajapupathi <c_srajap@qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath6kl/usb.c b/drivers/net/wireless/ath/ath6kl/usb.c
index cf488f8..f38ff6a 100644
--- a/drivers/net/wireless/ath/ath6kl/usb.c
+++ b/drivers/net/wireless/ath/ath6kl/usb.c
@@ -1061,6 +1061,22 @@ static void ath6kl_usb_cleanup_scatter(struct ath6kl *ar)
 	return;
 }
 
+static int ath6kl_usb_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
+{
+	/*
+	 * cfg80211 suspend/WOW currently not supported for USB.
+	 */
+	return 0;
+}
+
+static int ath6kl_usb_resume(struct ath6kl *ar)
+{
+	/*
+	 * cfg80211 resume currently not supported for USB.
+	 */
+	return 0;
+}
+
 static const struct ath6kl_hif_ops ath6kl_usb_ops = {
 	.diag_read32 = ath6kl_usb_diag_read32,
 	.diag_write32 = ath6kl_usb_diag_write32,
@@ -1074,6 +1090,8 @@ static const struct ath6kl_hif_ops ath6kl_usb_ops = {
 	.pipe_map_service = ath6kl_usb_map_service_pipe,
 	.pipe_get_free_queue_number = ath6kl_usb_get_free_queue_number,
 	.cleanup_scatter = ath6kl_usb_cleanup_scatter,
+	.suspend = ath6kl_usb_suspend,
+	.resume = ath6kl_usb_resume,
 };
 
 /* ath6kl usb driver registered functions */
-- 
cgit v0.10.2


From 37291fc61253cd34db40b7a60be4497db776db41 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Wed, 24 Apr 2013 14:02:34 +0200
Subject: ath6kl: Unify sg_sz and buf_sz in ath6kl_sdio_alloc_prep_scat_req()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

sg_sz and buf_sz are initialized and used in a mutual exclusive way.
However, some versions of gcc are not smart enough to see this:

drivers/net/wireless/ath/ath6kl/sdio.c: In function ‘ath6kl_sdio_alloc_prep_scat_req’:
drivers/net/wireless/ath/ath6kl/sdio.c:338: warning: ‘sg_sz’ may be used uninitialized in this function

Unify the sg_sz and buf_sz variables into a single size variable to kill
the compiler warning.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c
index fb14145..7126bdd 100644
--- a/drivers/net/wireless/ath/ath6kl/sdio.c
+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
@@ -345,17 +345,17 @@ static int ath6kl_sdio_alloc_prep_scat_req(struct ath6kl_sdio *ar_sdio,
 {
 	struct hif_scatter_req *s_req;
 	struct bus_request *bus_req;
-	int i, scat_req_sz, scat_list_sz, sg_sz, buf_sz;
+	int i, scat_req_sz, scat_list_sz, size;
 	u8 *virt_buf;
 
 	scat_list_sz = (n_scat_entry - 1) * sizeof(struct hif_scatter_item);
 	scat_req_sz = sizeof(*s_req) + scat_list_sz;
 
 	if (!virt_scat)
-		sg_sz = sizeof(struct scatterlist) * n_scat_entry;
+		size = sizeof(struct scatterlist) * n_scat_entry;
 	else
-		buf_sz =  2 * L1_CACHE_BYTES +
-			  ATH6KL_MAX_TRANSFER_SIZE_PER_SCATTER;
+		size =  2 * L1_CACHE_BYTES +
+			ATH6KL_MAX_TRANSFER_SIZE_PER_SCATTER;
 
 	for (i = 0; i < n_scat_req; i++) {
 		/* allocate the scatter request */
@@ -364,7 +364,7 @@ static int ath6kl_sdio_alloc_prep_scat_req(struct ath6kl_sdio *ar_sdio,
 			return -ENOMEM;
 
 		if (virt_scat) {
-			virt_buf = kzalloc(buf_sz, GFP_KERNEL);
+			virt_buf = kzalloc(size, GFP_KERNEL);
 			if (!virt_buf) {
 				kfree(s_req);
 				return -ENOMEM;
@@ -374,7 +374,7 @@ static int ath6kl_sdio_alloc_prep_scat_req(struct ath6kl_sdio *ar_sdio,
 				(u8 *)L1_CACHE_ALIGN((unsigned long)virt_buf);
 		} else {
 			/* allocate sglist */
-			s_req->sgentries = kzalloc(sg_sz, GFP_KERNEL);
+			s_req->sgentries = kzalloc(size, GFP_KERNEL);
 
 			if (!s_req->sgentries) {
 				kfree(s_req);
-- 
cgit v0.10.2


From ada7c19e6d27bf4bb6a242960ac6e76f9f21cdd7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 31 May 2013 14:32:55 +0000
Subject: bnx2x: use XPS if possible for bnx2x_select_queue instead of pure
 hash

The bnx2x_select_queue() was using __skb_tx_hash() to select the
transmit queue, totally ignoring XPS settings, while XPS can help
performance quite significantly, so change the bnx2x_select_queue()
to use __dev_pick_tx() instead which will use XPS if configured.

Based on patches from Ying Cai and Havard Skinnemoen

Reported-by: govindarajulu.v <govindarajulu90@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Havard Skinnemoen <hskinnemoen@google.com>
Cc: Ying Cai <ycai@google.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index c80f1d2..3651f6d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -1829,7 +1829,7 @@ u16 bnx2x_select_queue(struct net_device *dev, struct sk_buff *skb)
 	}
 
 	/* select a non-FCoE queue */
-	return __skb_tx_hash(dev, skb, BNX2X_NUM_ETH_QUEUES(bp));
+	return __netdev_pick_tx(dev, skb) % BNX2X_NUM_ETH_QUEUES(bp);
 }
 
 void bnx2x_set_num_queues(struct bnx2x *bp)
-- 
cgit v0.10.2


From d76a611187c4840a4a45fb3f493f9b63c19df4ca Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sun, 2 Jun 2013 00:06:17 +0000
Subject: bnx2x: Semantic change of empty lines

This patch removes unnecessary blank lines and adds a few where such are needed
(between variable declarations and code)

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 47b06fc..0c1104f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -34,12 +34,10 @@
 #define BCM_DCBNL
 #endif
 
-
 #include "bnx2x_hsi.h"
 
 #include "../cnic_if.h"
 
-
 #define BNX2X_MIN_MSIX_VEC_CNT(bp)		((bp)->min_msix_vec_cnt)
 
 #include <linux/mdio.h>
@@ -114,7 +112,6 @@ do {								\
 #define BNX2X_ERROR(fmt, ...)					\
 	pr_err("[%s:%d]" fmt, __func__, __LINE__, ##__VA_ARGS__)
 
-
 /* before we have a dev->name use dev_info() */
 #define BNX2X_DEV_INFO(fmt, ...)				 \
 do {								 \
@@ -147,7 +144,6 @@ do {						\
 #define U64_HI(x)			((u32)(((u64)(x)) >> 32))
 #define HILO_U64(hi, lo)		((((u64)(hi)) << 32) + (lo))
 
-
 #define REG_ADDR(bp, offset)		((bp->regview) + (offset))
 
 #define REG_RD(bp, offset)		readl(REG_ADDR(bp, offset))
@@ -387,7 +383,6 @@ union db_prod {
 #define BIT_VEC64_ELEM_SHIFT		6
 #define BIT_VEC64_ELEM_MASK		((u64)BIT_VEC64_ELEM_SZ - 1)
 
-
 #define __BIT_VEC64_SET_BIT(el, bit) \
 	do { \
 		el = ((el) | ((u64)0x1 << (bit))); \
@@ -398,7 +393,6 @@ union db_prod {
 		el = ((el) & (~((u64)0x1 << (bit)))); \
 	} while (0)
 
-
 #define BIT_VEC64_SET_BIT(vec64, idx) \
 	__BIT_VEC64_SET_BIT((vec64)[(idx) >> BIT_VEC64_ELEM_SHIFT], \
 			   (idx) & BIT_VEC64_ELEM_MASK)
@@ -419,8 +413,6 @@ union db_prod {
 
 /*******************************************************/
 
-
-
 /* Number of u64 elements in SGE mask array */
 #define RX_SGE_MASK_LEN			(NUM_RX_SGE / BIT_VEC64_ELEM_SZ)
 #define RX_SGE_MASK_LEN_MASK		(RX_SGE_MASK_LEN - 1)
@@ -580,12 +572,10 @@ struct bnx2x_fastpath {
 						txdata_ptr[FIRST_TX_COS_INDEX] \
 						->var)
 
-
 #define IS_ETH_FP(fp)		((fp)->index < BNX2X_NUM_ETH_QUEUES((fp)->bp))
 #define IS_FCOE_FP(fp)		((fp)->index == FCOE_IDX((fp)->bp))
 #define IS_FCOE_IDX(idx)	((idx) == FCOE_IDX(bp))
 
-
 /* MC hsi */
 #define MAX_FETCH_BD		13	/* HW max BDs per packet */
 #define RX_COPY_THRESH		92
@@ -693,12 +683,10 @@ struct bnx2x_fastpath {
 				 FW_DROP_LEVEL(bp))
 #define RCQ_TH_HI(bp)		(RCQ_TH_LO(bp) + DROPLESS_FC_HEADROOM)
 
-
 /* This is needed for determining of last_max */
 #define SUB_S16(a, b)		(s16)((s16)(a) - (s16)(b))
 #define SUB_S32(a, b)		(s32)((s32)(a) - (s32)(b))
 
-
 #define BNX2X_SWCID_SHIFT	17
 #define BNX2X_SWCID_MASK	((0x1 << BNX2X_SWCID_SHIFT) - 1)
 
@@ -723,7 +711,6 @@ struct bnx2x_fastpath {
 		       DPM_TRIGER_TYPE); \
 	} while (0)
 
-
 /* TX CSUM helpers */
 #define SKB_CS_OFF(skb)		(offsetof(struct tcphdr, check) - \
 				 skb->csum_offset)
@@ -766,7 +753,6 @@ struct bnx2x_fastpath {
 #define BNX2X_RX_SUM_FIX(cqe) \
 	BNX2X_PRS_FLAG_OVERETH_IPV4(cqe->fast_path_cqe.pars_flags.flags)
 
-
 #define FP_USB_FUNC_OFF	\
 			offsetof(struct cstorm_status_block_u, func)
 #define FP_CSB_FUNC_OFF	\
@@ -1068,7 +1054,6 @@ struct bnx2x_slowpath {
 		struct eth_classify_rules_ramrod_data	e2;
 	} mac_rdata;
 
-
 	union {
 		struct tstorm_eth_mac_filter_config	e1x;
 		struct eth_filter_rules_ramrod_data	e2;
@@ -1119,7 +1104,6 @@ struct bnx2x_slowpath {
 #define bnx2x_sp_mapping(bp, var) \
 		(bp->slowpath_mapping + offsetof(struct bnx2x_slowpath, var))
 
-
 /* attn group wiring */
 #define MAX_DYNAMIC_ATTN_GRPS		8
 
@@ -1225,7 +1209,6 @@ enum {
 	BNX2X_SP_RTNL_HYPERVISOR_VLAN,
 };
 
-
 struct bnx2x_prev_path_list {
 	struct list_head list;
 	u8 bus;
@@ -1755,7 +1738,6 @@ extern int num_queues;
 #define FUNC_FLG_SPQ		0x0010
 #define FUNC_FLG_LEADING	0x0020	/* PF only */
 
-
 struct bnx2x_func_init_params {
 	/* dma */
 	dma_addr_t	fw_stat_map;	/* valid iff FUNC_FLG_STATS */
@@ -1853,9 +1835,6 @@ struct bnx2x_func_init_params {
 
 #define skip_queue(bp, idx)	(NO_FCOE(bp) && IS_FCOE_IDX(idx))
 
-
-
-
 /**
  * bnx2x_set_mac_one - configure a single MAC address
  *
@@ -2000,7 +1979,6 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id,
 #define UNLOAD_CLOSE			1
 #define UNLOAD_RECOVERY			2
 
-
 /* DMAE command defines */
 #define DMAE_TIMEOUT			-1
 #define DMAE_PCI_ERROR			-2	/* E2 and onward */
@@ -2102,7 +2080,6 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id,
 #define SP_DESC_CNT		(BCM_PAGE_SIZE / sizeof(struct eth_spe))
 #define MAX_SP_DESC_CNT			(SP_DESC_CNT - 1)
 
-
 #define BNX2X_BTR			4
 #define MAX_SPQ_PENDING			8
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 3651f6d..b28aaf1 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -165,7 +165,6 @@ static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata,
 	dma_unmap_single(&bp->pdev->dev, BD_UNMAP_ADDR(tx_start_bd),
 			 BD_UNMAP_LEN(tx_start_bd), DMA_TO_DEVICE);
 
-
 	nbd = le16_to_cpu(tx_start_bd->nbd) - 1;
 #ifdef BNX2X_STOP_ON_ERROR
 	if ((nbd - 1) > (MAX_SKB_FRAGS + 2)) {
@@ -733,7 +732,6 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 			dev_kfree_skb_any(skb);
 		}
 
-
 		/* put new data in bin */
 		rx_buf->data = new_data;
 
@@ -899,7 +897,6 @@ int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
 						cqe_fp);
 
 				goto next_rx;
-
 			}
 			queue = cqe->end_agg_cqe.queue_index;
 			tpa_info = &fp->tpa_info[queue];
@@ -1004,7 +1001,6 @@ reuse_rx:
 					       le16_to_cpu(cqe_fp->vlan_tag));
 		napi_gro_receive(&fp->napi, skb);
 
-
 next_rx:
 		rx_buf->data = NULL;
 
@@ -2322,10 +2318,10 @@ static void bnx2x_nic_load_afex_dcc(struct bnx2x *bp, int load_code)
 static void bnx2x_bz_fp(struct bnx2x *bp, int index)
 {
 	struct bnx2x_fastpath *fp = &bp->fp[index];
-
 	int cos;
 	struct napi_struct orig_napi = fp->napi;
 	struct bnx2x_agg_info *orig_tpa_info = fp->tpa_info;
+
 	/* bzero bnx2x_fastpath contents */
 	if (fp->tpa_info)
 		memset(fp->tpa_info, 0, ETH_MAX_AGGREGATION_QUEUES_E1H_E2 *
@@ -2435,7 +2431,6 @@ int bnx2x_load_cnic(struct bnx2x *bp)
 	if (bp->state == BNX2X_STATE_OPEN)
 		bnx2x_cnic_notify(bp, CNIC_CTL_START_CMD);
 
-
 	DP(NETIF_MSG_IFUP, "Ending successfully CNIC-related load\n");
 
 	return 0;
@@ -2961,7 +2956,6 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
 			bnx2x_set_reset_global(bp);
 	}
 
-
 	/* The last driver must disable a "close the gate" if there is no
 	 * parity attention or "process kill" pending.
 	 */
@@ -4480,7 +4474,6 @@ int bnx2x_alloc_mem_bp(struct bnx2x *bp)
 alloc_err:
 	bnx2x_free_mem_bp(bp);
 	return -ENOMEM;
-
 }
 
 int bnx2x_reload_if_running(struct net_device *dev)
@@ -4522,7 +4515,6 @@ int bnx2x_get_cur_phy_idx(struct bnx2x *bp)
 	}
 
 	return sel_phy_idx;
-
 }
 int bnx2x_get_link_cfg_idx(struct bnx2x *bp)
 {
@@ -4739,7 +4731,6 @@ int bnx2x_resume(struct pci_dev *pdev)
 	return rc;
 }
 
-
 void bnx2x_set_ctx_validation(struct bnx2x *bp, struct eth_context *cxt,
 			      u32 cid)
 {
@@ -4757,7 +4748,6 @@ static void storm_memset_hc_timeout(struct bnx2x *bp, u8 port,
 				    u8 fw_sb_id, u8 sb_index,
 				    u8 ticks)
 {
-
 	u32 addr = BAR_CSTRORM_INTMEM +
 		   CSTORM_STATUS_BLOCK_DATA_TIMEOUT_OFFSET(fw_sb_id, sb_index);
 	REG_WR8(bp, addr, ticks);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index 151675d..f62ffc1 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -22,7 +22,6 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 
-
 #include "bnx2x.h"
 #include "bnx2x_sriov.h"
 
@@ -1171,7 +1170,6 @@ static inline u8 bnx2x_cnic_eth_cl_id(struct bnx2x *bp, u8 cl_idx)
 
 static inline u8 bnx2x_cnic_fw_sb_id(struct bnx2x *bp)
 {
-
 	/* the 'first' id is allocated for the cnic */
 	return bp->base_fw_ndsb;
 }
@@ -1181,7 +1179,6 @@ static inline u8 bnx2x_cnic_igu_sb_id(struct bnx2x *bp)
 	return bp->igu_base_sb;
 }
 
-
 static inline void bnx2x_init_fcoe_fp(struct bnx2x *bp)
 {
 	struct bnx2x_fastpath *fp = bnx2x_fcoe_fp(bp);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 4b077a7..2689f28 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -253,7 +253,6 @@ static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
 
 	memset(&pg_help_data, 0, sizeof(struct pg_help_data));
 
-
 	if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
 		DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
 
@@ -298,7 +297,6 @@ static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
 static void  bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
 					struct dcbx_pfc_feature *pfc, u32 error)
 {
-
 	if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
 		DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
 
@@ -367,7 +365,6 @@ static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 	struct lldp_remote_mib *remote_mib ;
 	struct lldp_local_mib  *local_mib;
 
-
 	switch (read_mib_type) {
 	case DCBX_READ_LOCAL_MIB:
 		mib_size = sizeof(struct lldp_local_mib);
@@ -629,7 +626,6 @@ static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
 	return 0;
 }
 
-
 #ifdef BCM_DCBNL
 static inline
 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
@@ -896,13 +892,11 @@ static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
 		}
 
 		af->app.default_pri = (u8)dp->admin_default_priority;
-
 	}
 
 	/* Write the data. */
 	bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
 			 sizeof(struct lldp_admin_mib));
-
 }
 
 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
@@ -1181,7 +1175,6 @@ static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
 		BNX2X_ERR("dcbx error: Both groups must have priorities\n");
 }
 
-
 #ifndef POWER_OF_2
 #define POWER_OF_2(x)	((0 != x) && (0 == (x & (x-1))))
 #endif
@@ -1524,7 +1517,6 @@ static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
 	}
 }
 
-
 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
 				       struct pg_help_data *help_data,
 				       struct dcbx_ets_feature *ets,
@@ -1533,7 +1525,6 @@ static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
 				       u32 pri_join_mask,
 				       u8 num_of_dif_pri)
 {
-
 	/* default E2 settings */
 	cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
 
@@ -1629,7 +1620,6 @@ static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
 					 u8 num_spread_of_entries,
 					 u8 strict_app_pris)
 {
-
 	if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
 					 num_spread_of_entries,
 					 strict_app_pris)) {
@@ -1876,7 +1866,6 @@ void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
 		 * dcbx negotiation.
 		 */
 		bnx2x_dcbx_update_tc_mapping(bp);
-
 	}
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h
index d153f44..125bd1b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h
@@ -134,8 +134,6 @@ enum {
 #define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD			130
 #define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD			170
 
-
-
 struct cos_entry_help_data {
 	u32			pri_join_mask;
 	u32			cos_bw;
@@ -170,7 +168,6 @@ struct cos_help_data {
 			(!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((bp), (pg_pri)) || \
 			 IS_DCBX_PFC_PRI_ONLY_PAUSE((bp), (pg_pri))))
 
-
 struct pg_entry_help_data {
 	u8	num_of_dif_pri;
 	u8	pg;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
index bff5e33..219dd84 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
@@ -28,7 +28,6 @@
 #define DRV_DUMP_USTORM_WAITP_ADDRESS    0x338a80
 #define DRV_DUMP_CSTORM_WAITP_ADDRESS    0x238a80
 
-
 /* Possible Chips */
 #define DUMP_CHIP_E1 1
 #define DUMP_CHIP_E1H 2
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 263950c..91978eb 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -733,7 +733,6 @@ static bool bnx2x_is_reg_in_chip(struct bnx2x *bp,
 		return false;
 }
 
-
 static bool bnx2x_is_wreg_in_chip(struct bnx2x *bp,
 	const struct wreg_addr *wreg_info)
 {
@@ -3071,7 +3070,6 @@ static void bnx2x_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 			}
 		}
 
-
 		for (i = 0, j = 0; i < BNX2X_NUM_STATS; i++) {
 			if (IS_MF_MODE_STAT(bp) && IS_PORT_STAT(i))
 				continue;
@@ -3194,7 +3192,6 @@ static int bnx2x_set_phys_id(struct net_device *dev,
 
 static int bnx2x_get_rss_flags(struct bnx2x *bp, struct ethtool_rxnfc *info)
 {
-
 	switch (info->flow_type) {
 	case TCP_V4_FLOW:
 	case TCP_V6_FLOW:
@@ -3430,7 +3427,6 @@ static int bnx2x_set_channels(struct net_device *dev,
 {
 	struct bnx2x *bp = netdev_priv(dev);
 
-
 	DP(BNX2X_MSG_ETHTOOL,
 	   "set-channels command parameters: rx = %d, tx = %d, other = %d, combined = %d\n",
 	   channels->rx_count, channels->tx_count, channels->other_count,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index f6d0e20..5081990 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -93,7 +93,6 @@ MODULE_FIRMWARE(FW_FILE_NAME_E1);
 MODULE_FIRMWARE(FW_FILE_NAME_E1H);
 MODULE_FIRMWARE(FW_FILE_NAME_E2);
 
-
 int num_queues;
 module_param(num_queues, int, 0);
 MODULE_PARM_DESC(num_queues,
@@ -122,8 +121,6 @@ static int debug;
 module_param(debug, int, 0);
 MODULE_PARM_DESC(debug, " Default debug msglevel");
 
-
-
 struct workqueue_struct *bnx2x_wq;
 
 struct bnx2x_mac_vals {
@@ -917,7 +914,6 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
 	       sp_sb_data.p_func.vf_valid,
 	       sp_sb_data.state);
 
-
 	for_each_eth_queue(bp, i) {
 		struct bnx2x_fastpath *fp = &bp->fp[i];
 		int loop;
@@ -1290,7 +1286,6 @@ void bnx2x_tx_hw_flushed(struct bnx2x *bp, u32 poll_count)
 	for (i = 0; i < ARRAY_SIZE(cmd_regs); i++)
 		bnx2x_pbf_pN_cmd_flushed(bp, &cmd_regs[i], poll_count);
 
-
 	/* Verify the transmission buffers are flushed P0, P1, P4 */
 	for (i = 0; i < ARRAY_SIZE(buf_regs); i++)
 		bnx2x_pbf_pN_buf_flushed(bp, &buf_regs[i], poll_count);
@@ -1305,11 +1300,9 @@ void bnx2x_tx_hw_flushed(struct bnx2x *bp, u32 poll_count)
 #define OP_GEN_AGG_VECT(index) \
 	(((index) << SDM_OP_GEN_AGG_VECT_IDX_SHIFT) & SDM_OP_GEN_AGG_VECT_IDX)
 
-
 int bnx2x_send_final_clnup(struct bnx2x *bp, u8 clnup_func, u32 poll_cnt)
 {
 	u32 op_gen_command = 0;
-
 	u32 comp_addr = BAR_CSTRORM_INTMEM +
 			CSTORM_FINAL_CLEANUP_COMPLETE_OFFSET(clnup_func);
 	int ret = 0;
@@ -1352,7 +1345,6 @@ u8 bnx2x_is_pcie_pending(struct pci_dev *dev)
 */
 static int bnx2x_poll_hw_usage_counters(struct bnx2x *bp, u32 poll_cnt)
 {
-
 	/* wait for CFC PF usage-counter to zero (includes all the VFs) */
 	if (bnx2x_flr_clnup_poll_hw_counter(bp,
 			CFC_REG_NUM_LCIDS_INSIDE_PF,
@@ -1360,7 +1352,6 @@ static int bnx2x_poll_hw_usage_counters(struct bnx2x *bp, u32 poll_cnt)
 			poll_cnt))
 		return 1;
 
-
 	/* Wait for DQ PF usage-counter to zero (until DQ cleanup) */
 	if (bnx2x_flr_clnup_poll_hw_counter(bp,
 			DORQ_REG_PF_USAGE_CNT,
@@ -1991,7 +1982,6 @@ int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource)
 	return 0;
 }
 
-
 int bnx2x_get_gpio(struct bnx2x *bp, int gpio_num, u8 port)
 {
 	/* The GPIO should be swapped if swap register is set and active */
@@ -2347,7 +2337,6 @@ u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes)
 	return rc;
 }
 
-
 /* Calculates the sum of vn_min_rates.
    It's needed for further normalizing of the min_rates.
    Returns:
@@ -2419,7 +2408,6 @@ static void bnx2x_calc_vn_max(struct bnx2x *bp, int vn,
 	input->vnic_max_rate[vn] = vn_max_rate;
 }
 
-
 static int bnx2x_get_cmng_fns_mode(struct bnx2x *bp)
 {
 	if (CHIP_REV_IS_SLOW(bp))
@@ -2901,7 +2889,6 @@ u32 bnx2x_fw_command(struct bnx2x *bp, u32 command, u32 param)
 	return rc;
 }
 
-
 static void storm_memset_func_cfg(struct bnx2x *bp,
 				 struct tstorm_eth_function_common_config *tcfg,
 				 u16 abs_fid)
@@ -3006,7 +2993,6 @@ static unsigned long bnx2x_get_q_flags(struct bnx2x *bp,
 	if (IS_MF_AFEX(bp))
 		__set_bit(BNX2X_Q_FLG_SILENT_VLAN_REM, &flags);
 
-
 	return flags | bnx2x_get_common_flags(bp, fp, true);
 }
 
@@ -3196,7 +3182,6 @@ static void bnx2x_pf_init(struct bnx2x *bp)
 	storm_memset_eq_data(bp, &eq_data, BP_FUNC(bp));
 }
 
-
 static void bnx2x_e1h_disable(struct bnx2x *bp)
 {
 	int port = BP_PORT(bp);
@@ -3540,10 +3525,8 @@ static bool bnx2x_is_contextless_ramrod(int cmd, int cmd_type)
 		return true;
 	else
 		return false;
-
 }
 
-
 /**
  * bnx2x_sp_post - place a single command on an SP ring
  *
@@ -3615,7 +3598,6 @@ int bnx2x_sp_post(struct bnx2x *bp, int command, int cid,
 	else
 		atomic_dec(&bp->cq_spq_left);
 
-
 	DP(BNX2X_MSG_SP,
 	   "SPQE[%x] (%x:%x)  (cmd, common?) (%d,%d)  hw_cid %x  data (%x:%x) type(0x%x) left (CQ, EQ) (%x,%x)\n",
 	   bp->spq_prod_idx, (u32)U64_HI(bp->spq_mapping),
@@ -3836,7 +3818,6 @@ static void bnx2x_fan_failure(struct bnx2x *bp)
 	set_bit(BNX2X_SP_RTNL_FAN_FAILURE, &bp->sp_rtnl_state);
 	smp_mb__after_clear_bit();
 	schedule_delayed_work(&bp->sp_rtnl_task, 0);
-
 }
 
 static void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn)
@@ -4591,7 +4572,6 @@ bool bnx2x_chk_parity_attn(struct bnx2x *bp, bool *global, bool print)
 	return bnx2x_parity_attn(bp, global, print, attn.sig);
 }
 
-
 static void bnx2x_attn_int_deasserted4(struct bnx2x *bp, u32 attn)
 {
 	u32 val;
@@ -4643,7 +4623,6 @@ static void bnx2x_attn_int_deasserted4(struct bnx2x *bp, u32 attn)
 		(u32)(attn & (AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR |
 		    AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR)));
 	}
-
 }
 
 static void bnx2x_attn_int_deasserted(struct bnx2x *bp, u32 deasserted)
@@ -4878,7 +4857,6 @@ static void bnx2x_handle_classification_eqe(struct bnx2x *bp,
 		BNX2X_ERR("Failed to schedule new commands: %d\n", rc);
 	else if (rc > 0)
 		DP(BNX2X_MSG_SP, "Scheduled next pending commands...\n");
-
 }
 
 static void bnx2x_set_iscsi_eth_rx_mode(struct bnx2x *bp, bool start);
@@ -5075,8 +5053,6 @@ static void bnx2x_eq_int(struct bnx2x *bp)
 			if (q_obj->complete_cmd(bp, q_obj, BNX2X_Q_CMD_CFC_DEL))
 				break;
 
-
-
 			goto next_spqe;
 
 		case EVENT_RING_OPCODE_STOP_TRAFFIC:
@@ -5265,7 +5241,6 @@ static void bnx2x_sp_task(struct work_struct *work)
 		/* ack status block only if something was actually handled */
 		bnx2x_ack_sb(bp, bp->igu_dsb_id, ATTENTION_ID,
 			     le16_to_cpu(bp->def_att_idx), IGU_INT_ENABLE, 1);
-
 	}
 
 	/* must be called after the EQ processing (since eq leads to sriov
@@ -5316,7 +5291,6 @@ irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance)
 
 /* end of slow path */
 
-
 void bnx2x_drv_pulse(struct bnx2x *bp)
 {
 	SHMEM_WR(bp, func_mb[BP_FW_MB_IDX(bp)].drv_pulse_mb,
@@ -5382,7 +5356,6 @@ static void bnx2x_fill(struct bnx2x *bp, u32 addr, int fill, u32 len)
 	else
 		for (i = 0; i < len; i++)
 			REG_WR8(bp, addr + i, fill);
-
 }
 
 /* helper: writes FP SP data to FW - data_size in dwords */
@@ -5461,10 +5434,8 @@ static void bnx2x_zero_sp_sb(struct bnx2x *bp)
 	bnx2x_fill(bp, BAR_CSTRORM_INTMEM +
 			CSTORM_SP_SYNC_BLOCK_OFFSET(func), 0,
 			CSTORM_SP_SYNC_BLOCK_SIZE);
-
 }
 
-
 static void bnx2x_setup_ndsb_state_machine(struct hc_status_block_sm *hc_sm,
 					   int igu_sb_id, int igu_seg_id)
 {
@@ -5474,7 +5445,6 @@ static void bnx2x_setup_ndsb_state_machine(struct hc_status_block_sm *hc_sm,
 	hc_sm->time_to_expire = 0xFFFFFFFF;
 }
 
-
 /* allocates state machine ids. */
 static void bnx2x_map_sb_state_machines(struct hc_index_data *index_data)
 {
@@ -6001,6 +5971,7 @@ static void bnx2x_init_tx_rings_cnic(struct bnx2x *bp)
 	for_each_tx_queue_cnic(bp, i)
 		bnx2x_init_tx_ring_one(bp->fp[i].txdata_ptr[0]);
 }
+
 static void bnx2x_init_tx_rings(struct bnx2x *bp)
 {
 	int i;
@@ -6772,7 +6743,6 @@ static int bnx2x_init_hw_common(struct bnx2x *bp)
 
 	bnx2x_init_block(bp, BLOCK_QM, PHASE_COMMON);
 
-
 	/* QM queues pointers table */
 	bnx2x_qm_init_ptr_table(bp, bp->qm_cid_count, INITOP_SET);
 
@@ -7013,7 +6983,6 @@ static int bnx2x_init_hw_port(struct bnx2x *bp)
 	u32 low, high;
 	u32 val;
 
-
 	DP(NETIF_MSG_HW, "starting port init  port %d\n", port);
 
 	REG_WR(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4, 0);
@@ -7078,7 +7047,6 @@ static int bnx2x_init_hw_port(struct bnx2x *bp)
 			    BRB1_REG_MAC_GUARANTIED_1 :
 			    BRB1_REG_MAC_GUARANTIED_0), 40);
 
-
 	bnx2x_init_block(bp, BLOCK_PRS, init_phase);
 	if (CHIP_IS_E3B0(bp)) {
 		if (IS_MF_AFEX(bp)) {
@@ -7275,7 +7243,6 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id, bool is_pf)
 	while (!(REG_RD(bp, igu_addr_ack) & sb_bit) && --cnt)
 		msleep(20);
 
-
 	if (!(REG_RD(bp, igu_addr_ack) & sb_bit)) {
 		DP(NETIF_MSG_HW,
 		   "Unable to finish IGU cleanup: idu_sb_id %d offset %d bit %d (cnt %d)\n",
@@ -7295,7 +7262,6 @@ static void bnx2x_clear_func_ilt(struct bnx2x *bp, u32 func)
 		bnx2x_ilt_wr(bp, i, 0);
 }
 
-
 static void bnx2x_init_searcher(struct bnx2x *bp)
 {
 	int port = BP_PORT(bp);
@@ -7331,7 +7297,6 @@ static int bnx2x_reset_nic_mode(struct bnx2x *bp)
 	int rc, i, port = BP_PORT(bp);
 	int vlan_en = 0, mac_en[NUM_MACS];
 
-
 	/* Close input from network */
 	if (bp->mf_mode == SINGLE_FUNCTION) {
 		bnx2x_set_rx_filter(&bp->link_params, 0);
@@ -7480,7 +7445,6 @@ static int bnx2x_init_hw_func(struct bnx2x *bp)
 		/* Set NIC mode */
 		REG_WR(bp, PRS_REG_NIC_MODE, 1);
 		DP(NETIF_MSG_IFUP, "NIC MODE configrued\n");
-
 	}
 
 	if (!CHIP_IS_E1x(bp)) {
@@ -7734,7 +7698,6 @@ static int bnx2x_init_hw_func(struct bnx2x *bp)
 	return 0;
 }
 
-
 void bnx2x_free_mem_cnic(struct bnx2x *bp)
 {
 	bnx2x_ilt_mem_op_cnic(bp, ILT_MEMOP_FREE);
@@ -7779,7 +7742,6 @@ void bnx2x_free_mem(struct bnx2x *bp)
 	bnx2x_iov_free_mem(bp);
 }
 
-
 int bnx2x_alloc_mem_cnic(struct bnx2x *bp)
 {
 	if (!CHIP_IS_E1x(bp))
@@ -8068,7 +8030,6 @@ void bnx2x_ilt_set_info(struct bnx2x *bp)
 		   ilt_client->page_size,
 		   ilt_client->flags,
 		   ilog2(ilt_client->page_size >> 12));
-
 	}
 
 	if (CNIC_SUPPORT(bp)) {
@@ -8124,7 +8085,6 @@ void bnx2x_ilt_set_info(struct bnx2x *bp)
 static void bnx2x_pf_q_prep_init(struct bnx2x *bp,
 	struct bnx2x_fastpath *fp, struct bnx2x_queue_init_params *init_params)
 {
-
 	u8 cos;
 	int cxt_index, cxt_offset;
 
@@ -8205,7 +8165,6 @@ static int bnx2x_setup_tx_only(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 	return bnx2x_queue_state_change(bp, q_params);
 }
 
-
 /**
  * bnx2x_setup_queue - setup queue
  *
@@ -8254,7 +8213,6 @@ int bnx2x_setup_queue(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 
 	DP(NETIF_MSG_IFUP, "init complete\n");
 
-
 	/* Now move the Queue to the SETUP state... */
 	memset(setup_params, 0, sizeof(*setup_params));
 
@@ -8315,7 +8273,6 @@ static int bnx2x_stop_queue(struct bnx2x *bp, int index)
 	/* We want to wait for completion in this context */
 	__set_bit(RAMROD_COMP_WAIT, &q_params.ramrod_flags);
 
-
 	/* close tx-only connections */
 	for (tx_index = FIRST_TX_ONLY_COS_INDEX;
 	     tx_index < fp->max_cos;
@@ -8369,7 +8326,6 @@ static int bnx2x_stop_queue(struct bnx2x *bp, int index)
 	return bnx2x_queue_state_change(bp, &q_params);
 }
 
-
 static void bnx2x_reset_func(struct bnx2x *bp)
 {
 	int port = BP_PORT(bp);
@@ -8740,7 +8696,6 @@ void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link)
 
 	bnx2x_iov_chip_cleanup(bp);
 
-
 	/*
 	 * Send the UNLOAD_REQUEST to the MCP. This will return if
 	 * this function should perform FUNC, PORT or COMMON HW
@@ -8813,7 +8768,6 @@ unload_error:
 	if (rc)
 		BNX2X_ERR("HW_RESET failed\n");
 
-
 	/* Report UNLOAD_DONE to MCP */
 	bnx2x_send_unload_done(bp, keep_link);
 }
@@ -9179,7 +9133,6 @@ static int bnx2x_process_kill(struct bnx2x *bp, bool global)
 	if (!CHIP_IS_E1x(bp) && bnx2x_er_poll_igu_vq(bp))
 		return -EAGAIN;
 
-
 	/* TBD: Indicate that "process kill" is in progress to MCP */
 
 	/* Clear "unprepared" bit */
@@ -9647,7 +9600,6 @@ static void bnx2x_prev_unload_close_mac(struct bnx2x *bp,
 			wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE;
 			REG_WR(bp, vals->bmac_addr, wb_data[0]);
 			REG_WR(bp, vals->bmac_addr + 0x4, wb_data[1]);
-
 		}
 		BNX2X_DEV_INFO("Disable emac Rx\n");
 		vals->emac_addr = NIG_REG_NIG_EMAC0_EN + BP_PORT(bp)*4;
@@ -9681,7 +9633,6 @@ static void bnx2x_prev_unload_close_mac(struct bnx2x *bp,
 
 	if (mac_stopped)
 		msleep(20);
-
 }
 
 #define BNX2X_PREV_UNDI_PROD_ADDR(p) (BAR_TSTRORM_INTMEM + 0x1508 + ((p) << 4))
@@ -9854,7 +9805,6 @@ static int bnx2x_do_flr(struct bnx2x *bp)
 	u16 status;
 	struct pci_dev *dev = bp->pdev;
 
-
 	if (CHIP_IS_E1x(bp)) {
 		BNX2X_DEV_INFO("FLR not supported in E1/E1H\n");
 		return -EINVAL;
@@ -10001,7 +9951,6 @@ static int bnx2x_prev_unload_common(struct bnx2x *bp)
 
 		if (!timer_count)
 			BNX2X_ERR("Failed to empty BRB, hope for the best\n");
-
 	}
 
 	/* No packets are in the pipeline, path is ready for reset */
@@ -10205,8 +10154,6 @@ static void bnx2x_get_common_hwinfo(struct bnx2x *bp)
 
 	bnx2x_init_shmem(bp);
 
-
-
 	bp->common.shmem2_base = REG_RD(bp, (BP_PATH(bp) ?
 					MISC_REG_GENERIC_CR_1 :
 					MISC_REG_GENERIC_CR_0));
@@ -10467,7 +10414,6 @@ static void bnx2x_link_settings_supported(struct bnx2x *bp, u32 switch_cfg)
 		if (!(bp->link_params.speed_cap_mask[idx] &
 					PORT_HW_CFG_SPEED_CAPABILITY_D0_10G))
 			bp->port.supported[idx] &= ~SUPPORTED_10000baseT_Full;
-
 	}
 
 	BNX2X_DEV_INFO("supported 0x%x 0x%x\n", bp->port.supported[0],
@@ -10778,7 +10724,6 @@ void bnx2x_get_iscsi_info(struct bnx2x *bp)
 	 */
 	if (!bp->cnic_eth_dev.max_iscsi_conn)
 		bp->flags |= no_flags;
-
 }
 
 static void bnx2x_get_ext_wwn_info(struct bnx2x *bp, int func)
@@ -11442,7 +11387,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 	mutex_init(&bp->fw_mb_mutex);
 	spin_lock_init(&bp->stats_lock);
 
-
 	INIT_DELAYED_WORK(&bp->sp_task, bnx2x_sp_task);
 	INIT_DELAYED_WORK(&bp->sp_rtnl_task, bnx2x_sp_rtnl_task);
 	INIT_DELAYED_WORK(&bp->period_task, bnx2x_period_task);
@@ -11475,7 +11419,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 		bnx2x_prev_unload(bp);
 	}
 
-
 	if (CHIP_REV_IS_FPGA(bp))
 		dev_err(&bp->pdev->dev, "FPGA detected\n");
 
@@ -11558,7 +11501,6 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 	return rc;
 }
 
-
 /****************************************************************************
 * General service functions
 ****************************************************************************/
@@ -12397,7 +12339,6 @@ static void bnx2x_release_firmware(struct bnx2x *bp)
 	bp->firmware = NULL;
 }
 
-
 static struct bnx2x_func_sp_drv_ops bnx2x_func_sp_drv = {
 	.init_hw_cmn_chip = bnx2x_init_hw_common_chip,
 	.init_hw_cmn      = bnx2x_init_hw_common,
@@ -12676,7 +12617,6 @@ static int bnx2x_init_one(struct pci_dev *pdev,
 	}
 	BNX2X_DEV_INFO("device name after netdev register %s\n", dev->name);
 
-
 	if (!NO_FCOE(bp)) {
 		/* Add storage MAC address */
 		rtnl_lock();
@@ -13048,6 +12988,7 @@ static int __init bnx2x_init(void)
 static void __exit bnx2x_cleanup(void)
 {
 	struct list_head *pos, *q;
+
 	pci_unregister_driver(&bnx2x_pci_driver);
 
 	destroy_workqueue(bnx2x_wq);
@@ -13103,7 +13044,6 @@ static void bnx2x_cnic_sp_post(struct bnx2x *bp, int count)
 	BUG_ON(bp->cnic_spq_pending < count);
 	bp->cnic_spq_pending -= count;
 
-
 	for (; bp->cnic_kwq_pending; bp->cnic_kwq_pending--) {
 		u16 type =  (le16_to_cpu(bp->cnic_kwq_cons->hdr.type)
 				& SPE_HDR_CONN_TYPE) >>
@@ -13276,7 +13216,6 @@ static void bnx2x_cnic_cfc_comp(struct bnx2x *bp, int cid, u8 err)
 	bnx2x_cnic_sp_post(bp, 0);
 }
 
-
 /* Called with netif_addr_lock_bh() taken.
  * Sets an rx_mode config for an iSCSI ETH client.
  * Doesn't block.
@@ -13317,7 +13256,6 @@ static void bnx2x_set_iscsi_eth_rx_mode(struct bnx2x *bp, bool start)
 	}
 }
 
-
 static int bnx2x_drv_ctl(struct net_device *dev, struct drv_ctl_info *ctl)
 {
 	struct bnx2x *bp = netdev_priv(dev);
@@ -13505,7 +13443,6 @@ void bnx2x_setup_cnic_info(struct bnx2x *bp)
 {
 	struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
 
-
 	cp->ctx_tbl_offset = FUNC_ILT_BASE(BP_FUNC(bp)) +
 			     bnx2x_cid_ilt_lines(bp);
 	cp->starting_cid = bnx2x_cid_ilt_lines(bp) * ILT_PAGE_CIDS;
@@ -13541,7 +13478,6 @@ static int bnx2x_register_cnic(struct net_device *dev, struct cnic_ops *ops,
 			BNX2X_ERR("CNIC-related load failed\n");
 			return rc;
 		}
-
 	}
 
 	bp->cnic_enabled = true;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 32a9609..1f9dbb2 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -142,7 +142,6 @@ free_and_exit:
 	spin_unlock_bh(&o->lock);
 
 	return rc;
-
 }
 
 static inline void __bnx2x_exe_queue_reset_pending(
@@ -163,13 +162,11 @@ static inline void __bnx2x_exe_queue_reset_pending(
 static inline void bnx2x_exe_queue_reset_pending(struct bnx2x *bp,
 						 struct bnx2x_exe_queue_obj *o)
 {
-
 	spin_lock_bh(&o->lock);
 
 	__bnx2x_exe_queue_reset_pending(bp, o);
 
 	spin_unlock_bh(&o->lock);
-
 }
 
 /**
@@ -308,7 +305,6 @@ static inline int bnx2x_state_wait(struct bnx2x *bp, int state,
 	/* can take a while if any port is running */
 	int cnt = 5000;
 
-
 	if (CHIP_REV_IS_EMUL(bp))
 		cnt *= 20;
 
@@ -456,7 +452,6 @@ static int bnx2x_get_n_elements(struct bnx2x *bp, struct bnx2x_vlan_mac_obj *o,
 			DP(BNX2X_MSG_SP, "copied element number %d to address %p element was:\n",
 			   counter, next);
 			next += stride + size;
-
 		}
 	}
 	return counter * ETH_ALEN;
@@ -518,7 +513,6 @@ static int bnx2x_check_vlan_mac_add(struct bnx2x *bp,
 	return 0;
 }
 
-
 /* check_del() callbacks */
 static struct bnx2x_vlan_mac_registry_elem *
 	bnx2x_check_mac_del(struct bnx2x *bp,
@@ -609,7 +603,6 @@ static bool bnx2x_check_move_always_err(
 	return false;
 }
 
-
 static inline u8 bnx2x_vlan_mac_get_rx_tx_flag(struct bnx2x_vlan_mac_obj *o)
 {
 	struct bnx2x_raw_obj *raw = &o->raw;
@@ -626,7 +619,6 @@ static inline u8 bnx2x_vlan_mac_get_rx_tx_flag(struct bnx2x_vlan_mac_obj *o)
 	return rx_tx_flag;
 }
 
-
 void bnx2x_set_mac_in_nig(struct bnx2x *bp,
 			  bool add, unsigned char *dev_addr, int index)
 {
@@ -707,7 +699,6 @@ static inline void bnx2x_vlan_mac_set_rdata_hdr_e2(u32 cid, int type,
 	hdr->rule_cnt = (u8)rule_cnt;
 }
 
-
 /* hw_config() callbacks */
 static void bnx2x_set_one_mac_e2(struct bnx2x *bp,
 				 struct bnx2x_vlan_mac_obj *o,
@@ -960,7 +951,6 @@ static void bnx2x_set_one_vlan_mac_e2(struct bnx2x *bp,
 	u16 vlan = elem->cmd_data.vlan_mac.u.vlan_mac.vlan;
 	u8 *mac = elem->cmd_data.vlan_mac.u.vlan_mac.mac;
 
-
 	/* Reset the ramrod data buffer for the first rule */
 	if (rule_idx == 0)
 		memset(data, 0, sizeof(*data));
@@ -1818,8 +1808,6 @@ int bnx2x_config_vlan_mac(
 	return rc;
 }
 
-
-
 /**
  * bnx2x_vlan_mac_del_all - delete elements with given vlan_mac_flags spec
  *
@@ -1934,7 +1922,6 @@ static inline void bnx2x_init_vlan_mac_common(struct bnx2x_vlan_mac_obj *o,
 			   state, pstate, type);
 }
 
-
 void bnx2x_init_mac_obj(struct bnx2x *bp,
 			struct bnx2x_vlan_mac_obj *mac_obj,
 			u8 cl_id, u32 cid, u8 func_id, void *rdata,
@@ -2092,7 +2079,6 @@ void bnx2x_init_vlan_mac_obj(struct bnx2x *bp,
 				     bnx2x_execute_vlan_mac,
 				     bnx2x_exeq_get_vlan_mac);
 	}
-
 }
 
 /* RX_MODE verbs: DROP_ALL/ACCEPT_ALL/ACCEPT_ALL_MULTI/ACCEPT_ALL_VLAN/NORMAL */
@@ -2245,7 +2231,6 @@ static inline void bnx2x_rx_mode_set_cmd_state_e2(struct bnx2x *bp,
 	}
 
 	cmd->state = cpu_to_le16(state);
-
 }
 
 static int bnx2x_set_rx_mode_e2(struct bnx2x *bp,
@@ -2286,7 +2271,6 @@ static int bnx2x_set_rx_mode_e2(struct bnx2x *bp,
 					       false);
 	}
 
-
 	/*
 	 * If FCoE Queue configuration has been requested configure the Rx and
 	 * internal switching modes for this queue in separate rules.
@@ -2909,7 +2893,6 @@ static int bnx2x_mcast_validate_e2(struct bnx2x *bp,
 	default:
 		BNX2X_ERR("Unknown command: %d\n", cmd);
 		return -EINVAL;
-
 	}
 
 	/* Increase the total number of MACs pending to be configured */
@@ -3223,7 +3206,6 @@ static int bnx2x_mcast_validate_e1(struct bnx2x *bp,
 	default:
 		BNX2X_ERR("Unknown command: %d\n", cmd);
 		return -EINVAL;
-
 	}
 
 	/* We want to ensure that commands are executed one by one for 57710.
@@ -3342,7 +3324,6 @@ static inline int bnx2x_mcast_handle_restore_cmd_e1(
 	return -1;
 }
 
-
 static inline int bnx2x_mcast_handle_pending_cmds_e1(
 	struct bnx2x *bp, struct bnx2x_mcast_ramrod_params *p)
 {
@@ -3352,7 +3333,6 @@ static inline int bnx2x_mcast_handle_pending_cmds_e1(
 	union bnx2x_mcast_config_data cfg_data = {NULL};
 	int cnt = 0;
 
-
 	/* If nothing to be done - return */
 	if (list_empty(&o->pending_cmds_head))
 		return 0;
@@ -3550,7 +3530,6 @@ static int bnx2x_mcast_setup_e1(struct bnx2x *bp,
 		/* Ramrod completion is pending */
 		return 1;
 	}
-
 }
 
 static int bnx2x_mcast_get_registry_size_exact(struct bnx2x_mcast_obj *o)
@@ -3848,7 +3827,6 @@ static bool bnx2x_credit_pool_always_true(struct bnx2x_credit_pool_obj *o,
 	return true;
 }
 
-
 static bool bnx2x_credit_pool_get_entry(
 	struct bnx2x_credit_pool_obj *o,
 	int *offset)
@@ -4018,7 +3996,6 @@ void bnx2x_init_mac_credit_pool(struct bnx2x *bp,
 			/* this should never happen! Block MAC operations. */
 			bnx2x_init_credit_pool(p, 0, 0);
 		}
-
 	}
 }
 
@@ -4215,7 +4192,6 @@ int bnx2x_config_rss(struct bnx2x *bp,
 	return rc;
 }
 
-
 void bnx2x_init_rss_config_obj(struct bnx2x *bp,
 			       struct bnx2x_rss_config_obj *rss_obj,
 			       u8 cl_id, u32 cid, u8 func_id, u8 engine_id,
@@ -4288,7 +4264,6 @@ int bnx2x_queue_state_change(struct bnx2x *bp,
 	return !!test_bit(pending_bit, pending);
 }
 
-
 static int bnx2x_queue_set_pending(struct bnx2x_queue_sp_obj *obj,
 				   struct bnx2x_queue_state_params *params)
 {
@@ -4403,7 +4378,6 @@ static void bnx2x_q_fill_init_general_data(struct bnx2x *bp,
 	gen_data->mtu = cpu_to_le16(params->mtu);
 	gen_data->func_id = o->func_id;
 
-
 	gen_data->cos = params->cos;
 
 	gen_data->traffic_type =
@@ -4530,7 +4504,6 @@ static void bnx2x_q_fill_init_rx_data(struct bnx2x_queue_sp_obj *o,
 		cpu_to_le16(params->silent_removal_value);
 	rx_data->silent_vlan_mask =
 		cpu_to_le16(params->silent_removal_mask);
-
 }
 
 /* initialize the general, tx and rx parts of a queue object */
@@ -4706,7 +4679,6 @@ static inline int bnx2x_q_send_setup_tx_only(struct bnx2x *bp,
 		&params->params.tx_only;
 	u8 cid_index = tx_only_params->cid_index;
 
-
 	if (cid_index >= o->max_cos) {
 		BNX2X_ERR("queue[%d]: cid_index (%d) is out of range\n",
 			  o->cl_id, cid_index);
@@ -4816,7 +4788,6 @@ static inline int bnx2x_q_send_update(struct bnx2x *bp,
 		return -EINVAL;
 	}
 
-
 	/* Clear the ramrod data */
 	memset(rdata, 0, sizeof(*rdata));
 
@@ -5636,7 +5607,6 @@ static inline void bnx2x_func_reset_cmn(struct bnx2x *bp,
 	drv->reset_hw_cmn(bp);
 }
 
-
 static inline int bnx2x_func_hw_reset(struct bnx2x *bp,
 				      struct bnx2x_func_state_params *params)
 {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
index 43c00bc..c4fffe0 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
@@ -1377,7 +1377,6 @@ void bnx2x_init_vlan_credit_pool(struct bnx2x *bp,
 				 struct bnx2x_credit_pool_obj *p, u8 func_id,
 				 u8 func_num);
 
-
 /****************** RSS CONFIGURATION ****************/
 void bnx2x_init_rss_config_obj(struct bnx2x *bp,
 			       struct bnx2x_rss_config_obj *rss_obj,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 2ce7c74..ea492c7 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -3024,7 +3024,6 @@ void bnx2x_unlock_vf_pf_channel(struct bnx2x *bp, struct bnx2x_virtf *vf,
 
 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
 {
-
 	struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
 
 	DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index d67ddc5..0397922 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -722,7 +722,6 @@ u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
 			  struct pf_vf_bulletin_content *bulletin);
 int bnx2x_post_vf_bulletin(struct bnx2x *bp, int vf);
 
-
 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp);
 
 /* VF side vfpf channel functions */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index 2ca3d94..98366ab 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -1002,7 +1002,6 @@ static int bnx2x_storm_stats_update(struct bnx2x *bp)
 		qstats->valid_bytes_received_lo =
 					qstats->total_bytes_received_lo;
 
-
 		UPDATE_EXTEND_TSTAT(rcv_ucast_pkts,
 					total_unicast_packets_received);
 		UPDATE_EXTEND_TSTAT(rcv_mcast_pkts,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
index d117f47..853824d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
@@ -40,7 +40,6 @@ struct nig_stats {
 	u32 egress_mac_pkt1_hi;
 };
 
-
 enum bnx2x_stats_event {
 	STATS_EVENT_PMF = 0,
 	STATS_EVENT_LINK_UP,
@@ -208,7 +207,6 @@ struct bnx2x_eth_stats {
 	u32 eee_tx_lpi;
 };
 
-
 struct bnx2x_eth_q_stats {
 	u32 total_unicast_bytes_received_hi;
 	u32 total_unicast_bytes_received_lo;
@@ -331,7 +329,6 @@ struct bnx2x_fw_port_stats_old {
 	 u32 mac_discard;
 };
 
-
 /****************************************************************************
 * Macros
 ****************************************************************************/
@@ -536,7 +533,6 @@ struct bnx2x_fw_port_stats_old {
 		SUB_EXTEND_64(qstats->t##_hi, qstats->t##_lo, diff); \
 	} while (0)
 
-
 /* forward */
 struct bnx2x;
 
-- 
cgit v0.10.2


From 16a5fd9265e757121bb5f1b9ad757836f370e76c Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sun, 2 Jun 2013 00:06:18 +0000
Subject: bnx2x: Revise comments and alignment

This patch correct various typos, fix comments conventions and
adds/removes a few comments.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 0c1104f..8f551cf 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -362,7 +362,7 @@ union db_prod {
 /*
  * Number of required  SGEs is the sum of two:
  * 1. Number of possible opened aggregations (next packet for
- *    these aggregations will probably consume SGE immidiatelly)
+ *    these aggregations will probably consume SGE immediately)
  * 2. Rest of BRB blocks divided by 2 (block will consume new SGE only
  *    after placement on BD for new TPA aggregation)
  *
@@ -486,10 +486,10 @@ struct bnx2x_fastpath {
 
 	struct napi_struct	napi;
 	union host_hc_status_block	status_blk;
-	/* chip independed shortcuts into sb structure */
+	/* chip independent shortcuts into sb structure */
 	__le16			*sb_index_values;
 	__le16			*sb_running_index;
-	/* chip independed shortcut into rx_prods_offset memory */
+	/* chip independent shortcut into rx_prods_offset memory */
 	u32			ustorm_rx_prods_offset;
 
 	u32			rx_buf_size;
@@ -603,7 +603,7 @@ struct bnx2x_fastpath {
  * START_BD(splitted)	- includes unpaged data segment for GSO
  * PARSING_BD		- for TSO and CSUM data
  * PARSING_BD2		- for encapsulation data
- * Frag BDs		- decribes pages for frags
+ * Frag BDs		- describes pages for frags
  */
 #define BDS_PER_TX_PKT		4
 #define MAX_BDS_PER_TX_PKT	(MAX_SKB_FRAGS + BDS_PER_TX_PKT)
@@ -886,14 +886,14 @@ struct bnx2x_common {
 #define CHIP_IS_E3A0(bp)		(CHIP_IS_E3(bp) && \
 					 (CHIP_REV(bp) == CHIP_REV_Ax))
 /* This define is used in two main places:
- * 1. In the early stages of nic_load, to know if to configrue Parser / Searcher
+ * 1. In the early stages of nic_load, to know if to configure Parser / Searcher
  * to nic-only mode or to offload mode. Offload mode is configured if either the
  * chip is E1x (where MIC_MODE register is not applicable), or if cnic already
  * registered for this port (which means that the user wants storage services).
  * 2. During cnic-related load, to know if offload mode is already configured in
- * the HW or needs to be configrued.
+ * the HW or needs to be configured.
  * Since the transition from nic-mode to offload-mode in HW causes traffic
- * coruption, nic-mode is configured only in ports on which storage services
+ * corruption, nic-mode is configured only in ports on which storage services
  * where never requested.
  */
 #define CONFIGURE_NIC_MODE(bp)		(!CHIP_IS_E1x(bp) && !CNIC_ENABLED(bp))
@@ -994,14 +994,14 @@ extern struct workqueue_struct *bnx2x_wq;
  * If the maximum number of FP-SB available is X then:
  * a. If CNIC is supported it consumes 1 FP-SB thus the max number of
  *    regular L2 queues is Y=X-1
- * b. in MF mode the actual number of L2 queues is Y= (X-1/MF_factor)
+ * b. In MF mode the actual number of L2 queues is Y= (X-1/MF_factor)
  * c. If the FCoE L2 queue is supported the actual number of L2 queues
  *    is Y+1
  * d. The number of irqs (MSIX vectors) is either Y+1 (one extra for
  *    slow-path interrupts) or Y+2 if CNIC is supported (one additional
  *    FP interrupt context for the CNIC).
  * e. The number of HW context (CID count) is always X or X+1 if FCoE
- *    L2 queue is supported. the cid for the FCoE L2 queue is always X.
+ *    L2 queue is supported. The cid for the FCoE L2 queue is always X.
  */
 
 /* fast-path interrupt contexts E1x */
@@ -1568,7 +1568,7 @@ struct bnx2x {
 	struct mutex		cnic_mutex;
 	struct bnx2x_vlan_mac_obj iscsi_l2_mac_obj;
 
-	/* Start index of the "special" (CNIC related) L2 cleints */
+	/* Start index of the "special" (CNIC related) L2 clients */
 	u8				cnic_base_cl_id;
 
 	int			dmae_ready;
@@ -1682,7 +1682,7 @@ struct bnx2x {
 	/* operation indication for the sp_rtnl task */
 	unsigned long				sp_rtnl_state;
 
-	/* DCBX Negotation results */
+	/* DCBX Negotiation results */
 	struct dcbx_features			dcbx_local_feat;
 	u32					dcbx_error;
 
@@ -2042,7 +2042,8 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id,
 #define DMAE_LEN32_WR_MAX(bp)		(CHIP_IS_E1(bp) ? 0x400 : 0x2000)
 
 #define DMAE_COMP_VAL			0x60d0d0ae /* E2 and on - upper bit
-							indicates eror */
+						    * indicates error
+						    */
 
 #define MAX_DMAE_C_PER_PORT		8
 #define INIT_DMAE_C(bp)			(BP_PORT(bp) * MAX_DMAE_C_PER_PORT + \
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index b28aaf1..ef7fed5 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -124,7 +124,7 @@ static void bnx2x_shrink_eth_fp(struct bnx2x *bp, int delta)
 	int i, cos, old_eth_num = BNX2X_NUM_ETH_QUEUES(bp);
 
 	/* Queue pointer cannot be re-set on an fp-basis, as moving pointer
-	 * backward along the array could cause memory to be overriden
+	 * backward along the array could cause memory to be overridden
 	 */
 	for (cos = 1; cos < bp->max_cos; cos++) {
 		for (i = 0; i < old_eth_num - delta; i++) {
@@ -258,7 +258,7 @@ int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata)
 	smp_mb();
 
 	if (unlikely(netif_tx_queue_stopped(txq))) {
-		/* Taking tx_lock() is needed to prevent reenabling the queue
+		/* Taking tx_lock() is needed to prevent re-enabling the queue
 		 * while it's empty. This could have happen if rx_action() gets
 		 * suspended in bnx2x_tx_int() after the condition before
 		 * netif_tx_wake_queue(), while tx_action (bnx2x_start_xmit()):
@@ -571,7 +571,7 @@ static int bnx2x_fill_frag_skb(struct bnx2x *bp, struct bnx2x_fastpath *fp,
 			return err;
 		}
 
-		/* Unmap the page as we r going to pass it to the stack */
+		/* Unmap the page as we're going to pass it to the stack */
 		dma_unmap_page(&bp->pdev->dev,
 			       dma_unmap_addr(&old_rx_pg, mapping),
 			       SGE_PAGES, DMA_FROM_DEVICE);
@@ -1114,7 +1114,7 @@ static void bnx2x_fill_report_data(struct bnx2x *bp,
 
 	memset(data, 0, sizeof(*data));
 
-	/* Fill the report data: efective line speed */
+	/* Fill the report data: effective line speed */
 	data->line_speed = line_speed;
 
 	/* Link is down */
@@ -1157,7 +1157,7 @@ void bnx2x_link_report(struct bnx2x *bp)
  *
  * @bp:		driver handle
  *
- * None atomic inmlementation.
+ * None atomic implementation.
  * Should be called under the phy_lock.
  */
 void __bnx2x_link_report(struct bnx2x *bp)
@@ -1300,7 +1300,7 @@ void bnx2x_init_rx_rings(struct bnx2x *bp)
 		   "mtu %d  rx_buf_size %d\n", bp->dev->mtu, fp->rx_buf_size);
 
 		if (!fp->disable_tpa) {
-			/* Fill the per-aggregtion pool */
+			/* Fill the per-aggregation pool */
 			for (i = 0; i < MAX_AGG_QS(bp); i++) {
 				struct bnx2x_agg_info *tpa_info =
 					&fp->tpa_info[i];
@@ -1858,7 +1858,7 @@ void bnx2x_set_num_queues(struct bnx2x *bp)
  *
  * If the actual number of Tx queues (for each CoS) is less than 16 then there
  * will be the holes at the end of each group of 16 ETh L2 indices (0..15,
- * 16..31,...) with indicies that are not coupled with any real Tx queue.
+ * 16..31,...) with indices that are not coupled with any real Tx queue.
  *
  * The proper configuration of skb->queue_mapping is handled by
  * bnx2x_select_queue() and __skb_tx_hash().
@@ -1920,7 +1920,7 @@ static void bnx2x_set_rx_buf_size(struct bnx2x *bp)
 				  ETH_OVREHEAD +
 				  mtu +
 				  BNX2X_FW_RX_ALIGN_END;
-		/* Note : rx_buf_size doesnt take into account NET_SKB_PAD */
+		/* Note : rx_buf_size doesn't take into account NET_SKB_PAD */
 		if (fp->rx_buf_size + NET_SKB_PAD <= PAGE_SIZE)
 			fp->rx_frag_size = fp->rx_buf_size + NET_SKB_PAD;
 		else
@@ -1933,7 +1933,7 @@ static int bnx2x_init_rss_pf(struct bnx2x *bp)
 	int i;
 	u8 num_eth_queues = BNX2X_NUM_ETH_QUEUES(bp);
 
-	/* Prepare the initial contents fo the indirection table if RSS is
+	/* Prepare the initial contents for the indirection table if RSS is
 	 * enabled
 	 */
 	for (i = 0; i < sizeof(bp->rss_conf_obj.ind_table); i++)
@@ -2011,7 +2011,7 @@ static int bnx2x_init_hw(struct bnx2x *bp, u32 load_code)
 
 /*
  * Cleans the object that have internal lists without sending
- * ramrods. Should be run when interrutps are disabled.
+ * ramrods. Should be run when interrupts are disabled.
  */
 void bnx2x_squeeze_objects(struct bnx2x *bp)
 {
@@ -2347,8 +2347,7 @@ static void bnx2x_bz_fp(struct bnx2x *bp, int index)
 			fp->txdata_ptr[cos] = &bp->bnx2x_txq[cos *
 				BNX2X_NUM_ETH_QUEUES(bp) + index];
 
-	/*
-	 * set the tpa flag for each queue. The tpa flag determines the queue
+	/* set the tpa flag for each queue. The tpa flag determines the queue
 	 * minimal size so it must be set prior to queue memory allocation
 	 */
 	fp->disable_tpa = !(bp->flags & TPA_ENABLE_FLAG ||
@@ -2473,6 +2472,7 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 
 	bp->state = BNX2X_STATE_OPENING_WAIT4_LOAD;
 
+	/* zero the structure w/o any lock, before SP handler is initialized */
 	memset(&bp->last_reported_link, 0, sizeof(bp->last_reported_link));
 	__set_bit(BNX2X_LINK_REPORT_LINK_DOWN,
 		&bp->last_reported_link.link_report_flags);
@@ -2537,8 +2537,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	}
 
 	/* configure multi cos mappings in kernel.
-	 * this configuration may be overriden by a multi class queue discipline
-	 * or by a dcbx negotiation result.
+	 * this configuration may be overridden by a multi class queue
+	 * discipline or by a dcbx negotiation result.
 	 */
 	bnx2x_setup_tc(bp->dev, bp->max_cos);
 
@@ -2697,7 +2697,7 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 	/* Start the Tx */
 	switch (load_mode) {
 	case LOAD_NORMAL:
-		/* Tx queue should be only reenabled */
+		/* Tx queue should be only re-enabled */
 		netif_tx_wake_all_queues(bp->dev);
 		break;
 
@@ -2842,7 +2842,7 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
 	}
 
 	/* Nothing to do during unload if previous bnx2x_nic_load()
-	 * have not completed succesfully - all resourses are released.
+	 * have not completed successfully - all resources are released.
 	 *
 	 * we can get here only after unsuccessful ndo_* callback, during which
 	 * dev->IFF_UP flag is still on.
@@ -2891,10 +2891,9 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
 		/* Send the UNLOAD_REQUEST to the MCP */
 		bnx2x_send_unload_req(bp, unload_mode);
 
-		/*
-		 * Prevent transactions to host from the functions on the
+		/* Prevent transactions to host from the functions on the
 		 * engine that doesn't reset global blocks in case of global
-		 * attention once gloabl blocks are reset and gates are opened
+		 * attention once global blocks are reset and gates are opened
 		 * (the engine which leader will perform the recovery
 		 * last).
 		 */
@@ -2915,7 +2914,7 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
 	}
 
 	/*
-	 * At this stage no more interrupts will arrive so we may safly clean
+	 * At this stage no more interrupts will arrive so we may safely clean
 	 * the queueable objects here in case they failed to get cleaned so far.
 	 */
 	if (IS_PF(bp))
@@ -3587,7 +3586,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	DP(NETIF_MSG_TX_QUEUED, "indices: txq %d, fp %d, txdata %d\n",
 	   txq_index, fp_index, txdata_index); */
 
-	/* enable this debug print to view the tranmission details
+	/* enable this debug print to view the transmission details
 	DP(NETIF_MSG_TX_QUEUED,
 	   "transmitting packet cid %d fp index %d txdata_index %d tx_data ptr %p fp pointer %p\n",
 	   txdata->cid, fp_index, txdata_index, txdata, fp); */
@@ -3970,7 +3969,7 @@ int bnx2x_setup_tc(struct net_device *dev, u8 num_tc)
 	/* setup tc must be called under rtnl lock */
 	ASSERT_RTNL();
 
-	/* no traffic classes requested. aborting */
+	/* no traffic classes requested. Aborting */
 	if (!num_tc) {
 		netdev_reset_tc(dev);
 		return 0;
@@ -3997,8 +3996,7 @@ int bnx2x_setup_tc(struct net_device *dev, u8 num_tc)
 		   prio, bp->prio_to_cos[prio]);
 	}
 
-
-	/* Use this configuration to diffrentiate tc0 from other COSes
+	/* Use this configuration to differentiate tc0 from other COSes
 	   This can be used for ets or pfc, and save the effort of setting
 	   up a multio class queue disc or negotiating DCBX with a switch
 	netdev_set_prio_tc_map(dev, 0, 0);
@@ -4629,7 +4627,7 @@ int bnx2x_set_features(struct net_device *dev, netdev_features_t features)
 
 	changes = flags ^ bp->flags;
 
-	/* if GRO is changed while LRO is enabled, dont force a reload */
+	/* if GRO is changed while LRO is enabled, don't force a reload */
 	if ((changes & GRO_ENABLE_FLAG) && (flags & TPA_ENABLE_FLAG))
 		changes &= ~GRO_ENABLE_FLAG;
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index f62ffc1..4a643d7 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -1331,8 +1331,8 @@ static inline bool bnx2x_mtu_allows_gro(int mtu)
 	int fpp = SGE_PAGE_SIZE / (mtu - ETH_MAX_TPA_HEADER_SIZE);
 
 	/*
-	 * 1. number of frags should not grow above MAX_SKB_FRAGS
-	 * 2. frag must fit the page
+	 * 1. Number of frags should not grow above MAX_SKB_FRAGS
+	 * 2. Frag must fit the page
 	 */
 	return mtu <= SGE_PAGE_SIZE && (U_ETH_SGL_SIZE * fpp) <= MAX_SKB_FRAGS;
 }
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 2689f28..210614e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -687,7 +687,7 @@ static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
 	}
 
 	/* setup tc must be called under rtnl lock, but we can't take it here
-	 * as we are handling an attetntion on a work queue which must be
+	 * as we are handling an attention on a work queue which must be
 	 * flushed at some rtnl-locked contexts (e.g. if down)
 	 */
 	if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
@@ -707,7 +707,7 @@ void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 			 */
 			bnx2x_dcbnl_update_applist(bp, true);
 
-			/* Read rmeote mib if dcbx is in the FW */
+			/* Read remote mib if dcbx is in the FW */
 			if (bnx2x_dcbx_read_shmem_remote_mib(bp))
 				return;
 #endif
@@ -738,7 +738,7 @@ void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 			bnx2x_dcbx_update_tc_mapping(bp);
 
 			/*
-			 * allow other funtions to update their netdevices
+			 * allow other functions to update their netdevices
 			 * accordingly
 			 */
 			if (IS_MF(bp))
@@ -860,7 +860,7 @@ static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
 			   i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
 		}
 
-		/*For IEEE admin_recommendation_bw_precentage
+		/*For IEEE admin_recommendation_bw_percentage
 		 *For IEEE admin_recommendation_ets_pg */
 		af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
 		for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
@@ -1070,7 +1070,7 @@ static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
 	bool pg_found  = false;
 	u32 i, traf_type, add_traf_type, add_pg;
 	u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
-	struct pg_entry_help_data *data = help_data->data; /*shotcut*/
+	struct pg_entry_help_data *data = help_data->data; /*shortcut*/
 
 	/* Set to invalid */
 	for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
@@ -1166,7 +1166,8 @@ static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
 				DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
 		else
 			/* If we join a group and one is strict
-			 * than the bw rulls */
+			 * than the bw rules
+			 */
 			cos_data->data[entry].strict =
 						BNX2X_DCBX_STRICT_COS_HIGHEST;
 	}
@@ -1277,7 +1278,7 @@ static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
 		} else {
 			/* If there are only pauseable priorities or
 			 * only non-pauseable,* the lower priorities go
-			 * to the first queue and the higherpriorities go
+			 * to the first queue and the higher priorities go
 			 * to the second queue.
 			 */
 			cos_data->data[0].pausable =
@@ -1477,7 +1478,7 @@ static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
 		 * queue and one priority goes to the second queue.
 		 *
 		 * We will join this two cases:
-		 * if one is BW limited it will go to the secoend queue
+		 * if one is BW limited it will go to the second queue
 		 * otherwise the last priority will get it
 		 */
 
@@ -1497,7 +1498,8 @@ static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
 				    false == b_found_strict)
 					/* last entry will be handled separately
 					 * If no priority is strict than last
-					 * enty goes to last queue.*/
+					 * entry goes to last queue.
+					 */
 					entry = 1;
 				cos_data->data[entry].pri_join_mask |=
 								pri_tested;
@@ -1509,7 +1511,8 @@ static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
 				b_found_strict = true;
 				cos_data->data[1].pri_join_mask |= pri_tested;
 				/* If we join a group and one is strict
-				 * than the bw rulls */
+				 * than the bw rules
+				 */
 				cos_data->data[1].strict =
 					BNX2X_DCBX_STRICT_COS_HIGHEST;
 			}
@@ -1838,7 +1841,7 @@ static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
 
 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
 {
-	/* if we need to syncronize DCBX result from prev PMF
+	/* if we need to synchronize DCBX result from prev PMF
 	 * read it from shmem and update bp and netdev accordingly
 	 */
 	if (SHMEM2_HAS(bp, drv_flags) &&
@@ -1932,14 +1935,14 @@ static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
 		return;
 
 	/**
-	 * bw_pct ingnored -	band-width percentage devision between user
+	 * bw_pct ignored -	band-width percentage devision between user
 	 *			priorities within the same group is not
 	 *			standard and hence not supported
 	 *
-	 * prio_type igonred -	priority levels within the same group are not
+	 * prio_type ignored -	priority levels within the same group are not
 	 *			standard and hence are not supported. According
 	 *			to the standard pgid 15 is dedicated to strict
-	 *			prioirty traffic (on the port level).
+	 *			priority traffic (on the port level).
 	 *
 	 * up_map ignored
 	 */
@@ -1984,14 +1987,14 @@ static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
 	DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
 
 	/**
-	 * bw_pct ingnored -	band-width percentage devision between user
+	 * bw_pct ignored -	band-width percentage devision between user
 	 *			priorities within the same group is not
 	 *			standard and hence not supported
 	 *
-	 * prio_type igonred -	priority levels within the same group are not
+	 * prio_type ignored -	priority levels within the same group are not
 	 *			standard and hence are not supported. According
 	 *			to the standard pgid 15 is dedicated to strict
-	 *			prioirty traffic (on the port level).
+	 *			priority traffic (on the port level).
 	 *
 	 * up_map ignored
 	 */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
index 219dd84..12eb4ba 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dump.h
@@ -13,12 +13,6 @@
  * consent.
  */
 
-
-/* This struct holds a signature to ensure the dump returned from the driver
- * match the meta data file inserted to grc_dump.tcl
- * The signature is time stamp, diag version and grc_dump version
- */
-
 #ifndef BNX2X_DUMP_H
 #define BNX2X_DUMP_H
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 91978eb..72b1b59 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -320,7 +320,7 @@ static int bnx2x_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 
 	speed = ethtool_cmd_speed(cmd);
 
-	/* If recieved a request for an unknown duplex, assume full*/
+	/* If received a request for an unknown duplex, assume full*/
 	if (cmd->duplex == DUPLEX_UNKNOWN)
 		cmd->duplex = DUPLEX_FULL;
 
@@ -849,7 +849,7 @@ static int __bnx2x_get_preset_regs(struct bnx2x *bp, u32 *p, u32 preset)
 
 	/* Paged registers are supported in E2 & E3 only */
 	if (CHIP_IS_E2(bp) || CHIP_IS_E3(bp)) {
-		/* Read "paged" registes */
+		/* Read "paged" registers */
 		bnx2x_read_pages_regs(bp, p, preset);
 	}
 
@@ -1154,8 +1154,8 @@ static int bnx2x_get_eeprom_len(struct net_device *dev)
 	return bp->common.flash_size;
 }
 
-/* Per pf misc lock must be aquired before the per port mcp lock. Otherwise, had
- * we done things the other way around, if two pfs from the same port would
+/* Per pf misc lock must be acquired before the per port mcp lock. Otherwise,
+ * had we done things the other way around, if two pfs from the same port would
  * attempt to access nvram at the same time, we could run into a scenario such
  * as:
  * pf A takes the port lock.
@@ -2070,7 +2070,7 @@ static int bnx2x_set_eee(struct net_device *dev, struct ethtool_eee *edata)
 				    EEE_MODE_OVERRIDE_NVRAM |
 				    EEE_MODE_OUTPUT_TIME;
 
-	/* Restart link to propogate changes */
+	/* Restart link to propagate changes */
 	if (netif_running(dev)) {
 		bnx2x_stats_handle(bp, STATS_EVENT_STOP);
 		bnx2x_force_link_reset(bp);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 5081990..82f3696 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -808,8 +808,8 @@ static void bnx2x_hc_int_disable(struct bnx2x *bp)
 	u32 val = REG_RD(bp, addr);
 
 	/* in E1 we must use only PCI configuration space to disable
-	 * MSI/MSIX capablility
-	 * It's forbitten to disable IGU_PF_CONF_MSI_MSIX_EN in HC block
+	 * MSI/MSIX capability
+	 * It's forbidden to disable IGU_PF_CONF_MSI_MSIX_EN in HC block
 	 */
 	if (CHIP_IS_E1(bp)) {
 		/* Since IGU_PF_CONF_MSI_MSIX_EN still always on
@@ -1012,7 +1012,7 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
 				hc_sm_p[j].timer_value);
 		}
 
-		/* Indecies data */
+		/* Indices data */
 		for (j = 0; j < loop; j++) {
 			pr_cont("INDEX[%d] flags (0x%x) timeout (0x%x)\n", j,
 			       hc_index_p[j].flags,
@@ -1107,7 +1107,7 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
  * bnx2x_pf_flr_clnup() is called during nic_load in the per function HW
  * initialization.
  */
-#define FLR_WAIT_USEC		10000	/* 10 miliseconds */
+#define FLR_WAIT_USEC		10000	/* 10 milliseconds */
 #define FLR_WAIT_INTERVAL	50	/* usec */
 #define	FLR_POLL_CNT		(FLR_WAIT_USEC/FLR_WAIT_INTERVAL) /* 200 */
 
@@ -1327,7 +1327,7 @@ int bnx2x_send_final_clnup(struct bnx2x *bp, u8 clnup_func, u32 poll_cnt)
 		bnx2x_panic();
 		return 1;
 	}
-	/* Zero completion for nxt FLR */
+	/* Zero completion for next FLR */
 	REG_WR(bp, comp_addr, 0);
 
 	return ret;
@@ -2343,7 +2343,7 @@ u8 bnx2x_link_test(struct bnx2x *bp, u8 is_serdes)
      sum of vn_min_rates.
        or
      0 - if all the min_rates are 0.
-     In the later case fainess algorithm should be deactivated.
+     In the later case fairness algorithm should be deactivated.
      If not all min_rates are zero then those that are zeroes will be set to 1.
  */
 static void bnx2x_calc_vn_min(struct bnx2x *bp,
@@ -2423,7 +2423,7 @@ void bnx2x_read_mf_cfg(struct bnx2x *bp)
 	int vn, n = (CHIP_MODE_IS_4_PORT(bp) ? 2 : 1);
 
 	if (BP_NOMCP(bp))
-		return; /* what should be the default bvalue in this case */
+		return; /* what should be the default value in this case */
 
 	/* For 2 port configuration the absolute function number formula
 	 * is:
@@ -2922,7 +2922,7 @@ void bnx2x_func_init(struct bnx2x *bp, struct bnx2x_func_init_params *p)
 }
 
 /**
- * bnx2x_get_tx_only_flags - Return common flags
+ * bnx2x_get_common_flags - Return common flags
  *
  * @bp		device handle
  * @fp		queue handle
@@ -3110,7 +3110,7 @@ static void bnx2x_pf_tx_q_prep(struct bnx2x *bp,
 	txq_init->fw_sb_id = fp->fw_sb_id;
 
 	/*
-	 * set the tss leading client id for TX classfication ==
+	 * set the tss leading client id for TX classification ==
 	 * leading RSS client id
 	 */
 	txq_init->tss_leading_cl_id = bnx2x_fp(bp, 0, cl_id);
@@ -3197,7 +3197,7 @@ static void bnx2x_e1h_enable(struct bnx2x *bp)
 
 	REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);
 
-	/* Tx queue should be only reenabled */
+	/* Tx queue should be only re-enabled */
 	netif_tx_wake_all_queues(bp->dev);
 
 	/*
@@ -3591,7 +3591,7 @@ int bnx2x_sp_post(struct bnx2x *bp, int command, int cid,
 	/*
 	 * It's ok if the actual decrement is issued towards the memory
 	 * somewhere between the spin_lock and spin_unlock. Thus no
-	 * more explict memory barrier is needed.
+	 * more explicit memory barrier is needed.
 	 */
 	if (common)
 		atomic_dec(&bp->eq_spq_left);
@@ -3660,7 +3660,7 @@ static u16 bnx2x_update_dsb_idx(struct bnx2x *bp)
 		rc |= BNX2X_DEF_SB_IDX;
 	}
 
-	/* Do not reorder: indecies reading should complete before handling */
+	/* Do not reorder: indices reading should complete before handling */
 	barrier();
 	return rc;
 }
@@ -3809,8 +3809,7 @@ static void bnx2x_fan_failure(struct bnx2x *bp)
 	netdev_err(bp->dev, "Fan Failure on Network Controller has caused the driver to shutdown the card to prevent permanent damage.\n"
 			    "Please contact OEM Support for assistance\n");
 
-	/*
-	 * Schedule device reset (unload)
+	/* Schedule device reset (unload)
 	 * This is due to some boards consuming sufficient power when driver is
 	 * up to overheat if fan fails.
 	 */
@@ -4987,7 +4986,7 @@ static void bnx2x_eq_int(struct bnx2x *bp)
 	hw_cons = le16_to_cpu(*bp->eq_cons_sb);
 
 	/* The hw_cos range is 1-255, 257 - the sw_cons range is 0-254, 256.
-	 * when we get the the next-page we nned to adjust so the loop
+	 * when we get the next-page we need to adjust so the loop
 	 * condition below will be met. The next element is the size of a
 	 * regular element and hence incrementing by 1
 	 */
@@ -5194,7 +5193,7 @@ static void bnx2x_sp_task(struct work_struct *work)
 
 	DP(BNX2X_MSG_SP, "sp task invoked\n");
 
-	/* make sure the atomic interupt_occurred has been written */
+	/* make sure the atomic interrupt_occurred has been written */
 	smp_rmb();
 	if (atomic_read(&bp->interrupt_occurred)) {
 
@@ -5670,7 +5669,7 @@ static void bnx2x_init_eq_ring(struct bnx2x *bp)
 	bp->eq_cons = 0;
 	bp->eq_prod = NUM_EQ_DESC;
 	bp->eq_cons_sb = BNX2X_EQ_INDEX;
-	/* we want a warning message before it gets rought... */
+	/* we want a warning message before it gets wrought... */
 	atomic_set(&bp->eq_spq_left,
 		min_t(int, MAX_SP_DESC_CNT - MAX_SPQ_PENDING, NUM_EQ_DESC) - 1);
 }
@@ -5754,7 +5753,7 @@ static int bnx2x_fill_accept_flags(struct bnx2x *bp, u32 rx_mode,
 
 		break;
 	case BNX2X_RX_MODE_PROMISC:
-		/* According to deffinition of SI mode, iface in promisc mode
+		/* According to definition of SI mode, iface in promisc mode
 		 * should receive matched and unmatched (in resolution of port)
 		 * unicast packets.
 		 */
@@ -5897,7 +5896,7 @@ static void bnx2x_init_eth_fp(struct bnx2x *bp, int fp_idx)
 	/* init shortcut */
 	fp->ustorm_rx_prods_offset = bnx2x_rx_ustorm_prods_offset(fp);
 
-	/* Setup SB indicies */
+	/* Setup SB indices */
 	fp->rx_cons_sb = BNX2X_RX_SB_INDEX;
 
 	/* Configure Queue State object */
@@ -6652,7 +6651,7 @@ static int bnx2x_init_hw_common(struct bnx2x *bp)
  *		    stay set)
  *		f.  If this is VNIC 3 of a port then also init
  *		    first_timers_ilt_entry to zero and last_timers_ilt_entry
- *		    to the last enrty in the ILT.
+ *		    to the last entry in the ILT.
  *
  *	Notes:
  *	Currently the PF error in the PGLC is non recoverable.
@@ -7118,8 +7117,8 @@ static int bnx2x_init_hw_port(struct bnx2x *bp)
 
 	bnx2x_init_block(bp, BLOCK_MISC_AEU, init_phase);
 	/* init aeu_mask_attn_func_0/1:
-	 *  - SF mode: bits 3-7 are masked. only bits 0-2 are in use
-	 *  - MF mode: bit 3 is masked. bits 0-2 are in use as in SF
+	 *  - SF mode: bits 3-7 are masked. Only bits 0-2 are in use
+	 *  - MF mode: bit 3 is masked. Bits 0-2 are in use as in SF
 	 *             bits 4-7 are used for "per vn group attention" */
 	val = IS_MF(bp) ? 0xF7 : 0x7;
 	/* Enable DCBX attention for all but E1 */
@@ -7371,7 +7370,7 @@ int bnx2x_init_hw_func_cnic(struct bnx2x *bp)
 	bnx2x_ilt_init_op_cnic(bp, INITOP_SET);
 
 	if (CONFIGURE_NIC_MODE(bp)) {
-		/* Configrue searcher as part of function hw init */
+		/* Configure searcher as part of function hw init */
 		bnx2x_init_searcher(bp);
 
 		/* Reset NIC mode */
@@ -7641,7 +7640,7 @@ static int bnx2x_init_hw_func(struct bnx2x *bp)
 			}
 			bnx2x_igu_clear_sb(bp, bp->igu_dsb_id);
 
-			/* !!! these should become driver const once
+			/* !!! These should become driver const once
 			   rf-tool supports split-68 const */
 			REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_LSB, 0);
 			REG_WR(bp, IGU_REG_SB_INT_BEFORE_MASK_MSB, 0);
@@ -7755,7 +7754,7 @@ int bnx2x_alloc_mem_cnic(struct bnx2x *bp)
 				       host_hc_status_block_e1x));
 
 	if (CONFIGURE_NIC_MODE(bp) && !bp->t2)
-		/* allocate searcher T2 table, as it wan't allocated before */
+		/* allocate searcher T2 table, as it wasn't allocated before */
 		BNX2X_PCI_ALLOC(bp->t2, &bp->t2_mapping, SRC_T2_SZ);
 
 	/* write address to which L5 should insert its values */
@@ -8093,7 +8092,7 @@ static void bnx2x_pf_q_prep_init(struct bnx2x *bp,
 		__set_bit(BNX2X_Q_FLG_HC, &init_params->rx.flags);
 		__set_bit(BNX2X_Q_FLG_HC, &init_params->tx.flags);
 
-		/* If HC is supporterd, enable host coalescing in the transition
+		/* If HC is supported, enable host coalescing in the transition
 		 * to INIT state.
 		 */
 		__set_bit(BNX2X_Q_FLG_HC_EN, &init_params->rx.flags);
@@ -8579,14 +8578,14 @@ static int bnx2x_func_wait_started(struct bnx2x *bp)
 
 	/*
 	 * (assumption: No Attention from MCP at this stage)
-	 * PMF probably in the middle of TXdisable/enable transaction
+	 * PMF probably in the middle of TX disable/enable transaction
 	 * 1. Sync IRS for default SB
-	 * 2. Sync SP queue - this guarantes us that attention handling started
-	 * 3. Wait, that TXdisable/enable transaction completes
+	 * 2. Sync SP queue - this guarantees us that attention handling started
+	 * 3. Wait, that TX disable/enable transaction completes
 	 *
-	 * 1+2 guranty that if DCBx attention was scheduled it already changed
-	 * pending bit of transaction from STARTED-->TX_STOPPED, if we alredy
-	 * received complettion for the transaction the state is TX_STOPPED.
+	 * 1+2 guarantee that if DCBx attention was scheduled it already changed
+	 * pending bit of transaction from STARTED-->TX_STOPPED, if we already
+	 * received completion for the transaction the state is TX_STOPPED.
 	 * State will return to STARTED after completion of TX_STOPPED-->STARTED
 	 * transaction.
 	 */
@@ -8705,7 +8704,7 @@ void bnx2x_chip_cleanup(struct bnx2x *bp, int unload_mode, bool keep_link)
 
 	/*
 	 * (assumption: No Attention from MCP at this stage)
-	 * PMF probably in the middle of TXdisable/enable transaction
+	 * PMF probably in the middle of TX disable/enable transaction
 	 */
 	rc = bnx2x_func_wait_started(bp);
 	if (rc) {
@@ -9320,7 +9319,7 @@ static void bnx2x_parity_recover(struct bnx2x *bp)
 				 * the first leader that performs a
 				 * leader_reset() reset the global blocks in
 				 * order to clear global attentions. Otherwise
-				 * the the gates will remain closed for that
+				 * the gates will remain closed for that
 				 * engine.
 				 */
 				if (load_status ||
@@ -10056,7 +10055,7 @@ static int bnx2x_prev_unload(struct bnx2x *bp)
 			break;
 		}
 
-		/* non-common reply from MCP night require looping */
+		/* non-common reply from MCP might require looping */
 		rc = bnx2x_prev_unload_uncommon(bp);
 		if (rc != BNX2X_PREV_WAIT_NEEDED)
 			break;
@@ -11034,7 +11033,7 @@ static int bnx2x_get_hwinfo(struct bnx2x *bp)
 	} else {
 		bp->common.int_block = INT_BLOCK_IGU;
 
-		/* do not allow device reset during IGU info preocessing */
+		/* do not allow device reset during IGU info processing */
 		bnx2x_acquire_hw_lock(bp, HW_LOCK_RESOURCE_RESET);
 
 		val = REG_RD(bp, IGU_REG_BLOCK_CONFIGURATION);
@@ -11113,7 +11112,7 @@ static int bnx2x_get_hwinfo(struct bnx2x *bp)
 				E1H_FUNC_MAX * sizeof(struct drv_func_mb);
 		/*
 		 * get mf configuration:
-		 * 1. existence of MF configuration
+		 * 1. Existence of MF configuration
 		 * 2. MAC address must be legal (check only upper bytes)
 		 *    for  Switch-Independent mode;
 		 *    OVLAN must be legal for Switch-Dependent mode
@@ -11490,7 +11489,7 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 
 	/* We need at least one default status block for slow-path events,
 	 * second status block for the L2 queue, and a third status block for
-	 * CNIC if supproted.
+	 * CNIC if supported.
 	 */
 	if (CNIC_SUPPORT(bp))
 		bp->min_msix_vec_cnt = 3;
@@ -12874,7 +12873,7 @@ static pci_ers_result_t bnx2x_io_slot_reset(struct pci_dev *pdev)
 
 		bnx2x_prev_unload(bp);
 
-		/* We should have resetted the engine, so It's fair to
+		/* We should have reseted the engine, so It's fair to
 		 * assume the FW will no longer write to the bnx2x driver.
 		 */
 		bnx2x_squeeze_objects(bp);
@@ -12993,7 +12992,7 @@ static void __exit bnx2x_cleanup(void)
 
 	destroy_workqueue(bnx2x_wq);
 
-	/* Free globablly allocated resources */
+	/* Free globally allocated resources */
 	list_for_each_safe(pos, q, &bnx2x_prev_list) {
 		struct bnx2x_prev_path_list *tmp =
 			list_entry(pos, struct bnx2x_prev_path_list, list);
@@ -13016,7 +13015,7 @@ module_exit(bnx2x_cleanup);
  * @bp:		driver handle
  * @set:	set or clear the CAM entry
  *
- * This function will wait until the ramdord completion returns.
+ * This function will wait until the ramrod completion returns.
  * Return 0 if success, -ENODEV if ramrod doesn't return.
  */
 static int bnx2x_set_iscsi_eth_mac_addr(struct bnx2x *bp)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 1f9dbb2..8f03c98 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -35,9 +35,9 @@
 /**
  * bnx2x_exe_queue_init - init the Exe Queue object
  *
- * @o:		poiter to the object
+ * @o:		pointer to the object
  * @exe_len:	length
- * @owner:	poiter to the owner
+ * @owner:	pointer to the owner
  * @validate:	validate function pointer
  * @optimize:	optimize function pointer
  * @exec:	execute function pointer
@@ -176,7 +176,7 @@ static inline void bnx2x_exe_queue_reset_pending(struct bnx2x *bp,
  * @o:			queue
  * @ramrod_flags:	flags
  *
- * (Atomicy is ensured using the exe_queue->lock).
+ * (Atomicity is ensured using the exe_queue->lock).
  */
 static inline int bnx2x_exe_queue_step(struct bnx2x *bp,
 				       struct bnx2x_exe_queue_obj *o,
@@ -189,8 +189,7 @@ static inline int bnx2x_exe_queue_step(struct bnx2x *bp,
 
 	spin_lock_bh(&o->lock);
 
-	/*
-	 * Next step should not be performed until the current is finished,
+	/* Next step should not be performed until the current is finished,
 	 * unless a DRV_CLEAR_ONLY bit is set. In this case we just want to
 	 * properly clear object internals without sending any command to the FW
 	 * which also implies there won't be any completion to clear the
@@ -206,8 +205,7 @@ static inline int bnx2x_exe_queue_step(struct bnx2x *bp,
 		}
 	}
 
-	/*
-	 * Run through the pending commands list and create a next
+	/* Run through the pending commands list and create a next
 	 * execution chunk.
 	 */
 	while (!list_empty(&o->exe_queue)) {
@@ -217,8 +215,7 @@ static inline int bnx2x_exe_queue_step(struct bnx2x *bp,
 
 		if (cur_len + elem->cmd_len <= o->exe_chunk_len) {
 			cur_len += elem->cmd_len;
-			/*
-			 * Prevent from both lists being empty when moving an
+			/* Prevent from both lists being empty when moving an
 			 * element. This will allow the call of
 			 * bnx2x_exe_queue_empty() without locking.
 			 */
@@ -238,14 +235,12 @@ static inline int bnx2x_exe_queue_step(struct bnx2x *bp,
 
 	rc = o->execute(bp, o->owner, &o->pending_comp, ramrod_flags);
 	if (rc < 0)
-		/*
-		 *  In case of an error return the commands back to the queue
-		 *  and reset the pending_comp.
+		/* In case of an error return the commands back to the queue
+		 * and reset the pending_comp.
 		 */
 		list_splice_init(&o->pending_comp, &o->exe_queue);
 	else if (!rc)
-		/*
-		 * If zero is returned, means there are no outstanding pending
+		/* If zero is returned, means there are no outstanding pending
 		 * completions and we may dismiss the pending list.
 		 */
 		__bnx2x_exe_queue_reset_pending(bp, o);
@@ -685,7 +680,7 @@ static inline void bnx2x_vlan_mac_set_cmd_hdr_e2(struct bnx2x *bp,
  *
  * @cid:	connection id
  * @type:	BNX2X_FILTER_XXX_PENDING
- * @hdr:	poiter to header to setup
+ * @hdr:	pointer to header to setup
  * @rule_cnt:
  *
  * currently we always configure one rule and echo field to contain a CID and an
@@ -714,8 +709,7 @@ static void bnx2x_set_one_mac_e2(struct bnx2x *bp,
 	unsigned long *vlan_mac_flags = &elem->cmd_data.vlan_mac.vlan_mac_flags;
 	u8 *mac = elem->cmd_data.vlan_mac.u.mac.mac;
 
-	/*
-	 * Set LLH CAM entry: currently only iSCSI and ETH macs are
+	/* Set LLH CAM entry: currently only iSCSI and ETH macs are
 	 * relevant. In addition, current implementation is tuned for a
 	 * single ETH MAC.
 	 *
@@ -870,8 +864,7 @@ static void bnx2x_set_one_mac_e1x(struct bnx2x *bp,
 	struct bnx2x_raw_obj *raw = &o->raw;
 	struct mac_configuration_cmd *config =
 		(struct mac_configuration_cmd *)(raw->rdata);
-	/*
-	 * 57710 and 57711 do not support MOVE command,
+	/* 57710 and 57711 do not support MOVE command,
 	 * so it's either ADD or DEL
 	 */
 	bool add = (elem->cmd_data.vlan_mac.cmd == BNX2X_VLAN_MAC_ADD) ?
@@ -959,7 +952,7 @@ static void bnx2x_set_one_vlan_mac_e2(struct bnx2x *bp,
 	bnx2x_vlan_mac_set_cmd_hdr_e2(bp, o, add, CLASSIFY_RULE_OPCODE_PAIR,
 				      &rule_entry->pair.header);
 
-	/* Set VLAN and MAC themselvs */
+	/* Set VLAN and MAC themselves */
 	rule_entry->pair.vlan = cpu_to_le16(vlan);
 	bnx2x_set_fw_mac_addr(&rule_entry->pair.mac_msb,
 			      &rule_entry->pair.mac_mid,
@@ -1011,8 +1004,7 @@ static void bnx2x_set_one_vlan_mac_e1h(struct bnx2x *bp,
 	struct bnx2x_raw_obj *raw = &o->raw;
 	struct mac_configuration_cmd *config =
 		(struct mac_configuration_cmd *)(raw->rdata);
-	/*
-	 * 57710 and 57711 do not support MOVE command,
+	/* 57710 and 57711 do not support MOVE command,
 	 * so it's either ADD or DEL
 	 */
 	bool add = (elem->cmd_data.vlan_mac.cmd == BNX2X_VLAN_MAC_ADD) ?
@@ -1036,7 +1028,7 @@ static void bnx2x_set_one_vlan_mac_e1h(struct bnx2x *bp,
  *
  * @bp:		device handle
  * @p:		command parameters
- * @ppos:	pointer to the cooky
+ * @ppos:	pointer to the cookie
  *
  * reconfigure next MAC/VLAN/VLAN-MAC element from the
  * previously configured elements list.
@@ -1044,7 +1036,7 @@ static void bnx2x_set_one_vlan_mac_e1h(struct bnx2x *bp,
  * from command parameters only RAMROD_COMP_WAIT bit in ramrod_flags is	taken
  * into an account
  *
- * pointer to the cooky  - that should be given back in the next call to make
+ * pointer to the cookie  - that should be given back in the next call to make
  * function handle the next element. If *ppos is set to NULL it will restart the
  * iterator. If returned *ppos == NULL this means that the last element has been
  * handled.
@@ -1092,8 +1084,7 @@ static int bnx2x_vlan_mac_restore(struct bnx2x *bp,
 	return bnx2x_config_vlan_mac(bp, p);
 }
 
-/*
- * bnx2x_exeq_get_mac/bnx2x_exeq_get_vlan/bnx2x_exeq_get_vlan_mac return a
+/* bnx2x_exeq_get_mac/bnx2x_exeq_get_vlan/bnx2x_exeq_get_vlan_mac return a
  * pointer to an element with a specific criteria and NULL if such an element
  * hasn't been found.
  */
@@ -1177,8 +1168,7 @@ static inline int bnx2x_validate_vlan_mac_add(struct bnx2x *bp,
 		return rc;
 	}
 
-	/*
-	 * Check if there is a pending ADD command for this
+	/* Check if there is a pending ADD command for this
 	 * MAC/VLAN/VLAN-MAC. Return an error if there is.
 	 */
 	if (exeq->get(exeq, elem)) {
@@ -1186,8 +1176,7 @@ static inline int bnx2x_validate_vlan_mac_add(struct bnx2x *bp,
 		return -EEXIST;
 	}
 
-	/*
-	 * TODO: Check the pending MOVE from other objects where this
+	/* TODO: Check the pending MOVE from other objects where this
 	 * object is a destination object.
 	 */
 
@@ -1230,8 +1219,7 @@ static inline int bnx2x_validate_vlan_mac_del(struct bnx2x *bp,
 		return -EEXIST;
 	}
 
-	/*
-	 * Check if there are pending DEL or MOVE commands for this
+	/* Check if there are pending DEL or MOVE commands for this
 	 * MAC/VLAN/VLAN-MAC. Return an error if so.
 	 */
 	memcpy(&query_elem, elem, sizeof(query_elem));
@@ -1282,8 +1270,7 @@ static inline int bnx2x_validate_vlan_mac_move(struct bnx2x *bp,
 	struct bnx2x_exe_queue_obj *src_exeq = &src_o->exe_queue;
 	struct bnx2x_exe_queue_obj *dest_exeq = &dest_o->exe_queue;
 
-	/*
-	 * Check if we can perform this operation based on the current registry
+	/* Check if we can perform this operation based on the current registry
 	 * state.
 	 */
 	if (!src_o->check_move(bp, src_o, dest_o,
@@ -1292,8 +1279,7 @@ static inline int bnx2x_validate_vlan_mac_move(struct bnx2x *bp,
 		return -EINVAL;
 	}
 
-	/*
-	 * Check if there is an already pending DEL or MOVE command for the
+	/* Check if there is an already pending DEL or MOVE command for the
 	 * source object or ADD command for a destination object. Return an
 	 * error if so.
 	 */
@@ -1382,7 +1368,7 @@ static int bnx2x_remove_vlan_mac(struct bnx2x *bp,
 }
 
 /**
- * bnx2x_wait_vlan_mac - passivly wait for 5 seconds until all work completes.
+ * bnx2x_wait_vlan_mac - passively wait for 5 seconds until all work completes.
  *
  * @bp:		device handle
  * @o:		bnx2x_vlan_mac_obj
@@ -1540,9 +1526,8 @@ static inline int bnx2x_vlan_mac_get_registry_elem(
 
 		/* Get a new CAM offset */
 		if (!o->get_cam_offset(o, &reg_elem->cam_offset)) {
-			/*
-			 * This shell never happen, because we have checked the
-			 * CAM availiability in the 'validate'.
+			/* This shall never happen, because we have checked the
+			 * CAM availability in the 'validate'.
 			 */
 			WARN_ON(1);
 			kfree(reg_elem);
@@ -1589,8 +1574,7 @@ static int bnx2x_execute_vlan_mac(struct bnx2x *bp,
 	struct bnx2x_vlan_mac_registry_elem *reg_elem;
 	enum bnx2x_vlan_mac_cmd cmd;
 
-	/*
-	 * If DRIVER_ONLY execution is requested, cleanup a registry
+	/* If DRIVER_ONLY execution is requested, cleanup a registry
 	 * and exit. Otherwise send a ramrod to FW.
 	 */
 	if (!drv_only) {
@@ -1599,11 +1583,10 @@ static int bnx2x_execute_vlan_mac(struct bnx2x *bp,
 		/* Set pending */
 		r->set_pending(r);
 
-		/* Fill tha ramrod data */
+		/* Fill the ramrod data */
 		list_for_each_entry(elem, exe_chunk, link) {
 			cmd = elem->cmd_data.vlan_mac.cmd;
-			/*
-			 * We will add to the target object in MOVE command, so
+			/* We will add to the target object in MOVE command, so
 			 * change the object for a CAM search.
 			 */
 			if (cmd == BNX2X_VLAN_MAC_MOVE)
@@ -1636,12 +1619,11 @@ static int bnx2x_execute_vlan_mac(struct bnx2x *bp,
 				idx++;
 		}
 
-		/*
-		 *  No need for an explicit memory barrier here as long we would
-		 *  need to ensure the ordering of writing to the SPQ element
-		 *  and updating of the SPQ producer which involves a memory
-		 *  read and we will have to put a full memory barrier there
-		 *  (inside bnx2x_sp_post()).
+		/* No need for an explicit memory barrier here as long we would
+		 * need to ensure the ordering of writing to the SPQ element
+		 * and updating of the SPQ producer which involves a memory
+		 * read and we will have to put a full memory barrier there
+		 * (inside bnx2x_sp_post()).
 		 */
 
 		rc = bnx2x_sp_post(bp, o->ramrod_cmd, r->cid,
@@ -1756,8 +1738,7 @@ int bnx2x_config_vlan_mac(
 			return rc;
 	}
 
-	/*
-	 * If nothing will be executed further in this iteration we want to
+	/* If nothing will be executed further in this iteration we want to
 	 * return PENDING if there are pending commands
 	 */
 	if (!bnx2x_exe_queue_empty(&o->exe_queue))
@@ -1776,13 +1757,11 @@ int bnx2x_config_vlan_mac(
 			return rc;
 	}
 
-	/*
-	 * RAMROD_COMP_WAIT is a superset of RAMROD_EXEC. If it was set
+	/* RAMROD_COMP_WAIT is a superset of RAMROD_EXEC. If it was set
 	 * then user want to wait until the last command is done.
 	 */
 	if (test_bit(RAMROD_COMP_WAIT, &p->ramrod_flags)) {
-		/*
-		 * Wait maximum for the current exe_queue length iterations plus
+		/* Wait maximum for the current exe_queue length iterations plus
 		 * one (for the current pending command).
 		 */
 		int max_iterations = bnx2x_exe_queue_length(&o->exe_queue) + 1;
@@ -1817,7 +1796,7 @@ int bnx2x_config_vlan_mac(
  * @ramrod_flags:	execution flags to be used for this deletion
  *
  * if the last operation has completed successfully and there are no
- * moreelements left, positive value if the last operation has completed
+ * more elements left, positive value if the last operation has completed
  * successfully and there are more previously configured elements, negative
  * value is current operation has failed.
  */
@@ -1858,8 +1837,7 @@ static int bnx2x_vlan_mac_del_all(struct bnx2x *bp,
 	p.ramrod_flags = *ramrod_flags;
 	p.user_req.cmd = BNX2X_VLAN_MAC_DEL;
 
-	/*
-	 * Add all but the last VLAN-MAC to the execution queue without actually
+	/* Add all but the last VLAN-MAC to the execution queue without actually
 	 * execution anything.
 	 */
 	__clear_bit(RAMROD_COMP_WAIT, &p.ramrod_flags);
@@ -2035,8 +2013,7 @@ void bnx2x_init_vlan_mac_obj(struct bnx2x *bp,
 	/* CAM pool handling */
 	vlan_mac_obj->get_credit = bnx2x_get_credit_vlan_mac;
 	vlan_mac_obj->put_credit = bnx2x_put_credit_vlan_mac;
-	/*
-	 * CAM offset is relevant for 57710 and 57711 chips only which have a
+	/* CAM offset is relevant for 57710 and 57711 chips only which have a
 	 * single CAM for both MACs and VLAN-MAC pairs. So the offset
 	 * will be taken from MACs' pool object only.
 	 */
@@ -2103,12 +2080,12 @@ static int bnx2x_set_rx_mode_e1x(struct bnx2x *bp,
 	struct tstorm_eth_mac_filter_config *mac_filters =
 		(struct tstorm_eth_mac_filter_config *)p->rdata;
 
-	/* initial seeting is drop-all */
+	/* initial setting is drop-all */
 	u8 drop_all_ucast = 1, drop_all_mcast = 1;
 	u8 accp_all_ucast = 0, accp_all_bcast = 0, accp_all_mcast = 0;
 	u8 unmatched_unicast = 0;
 
-    /* In e1x there we only take into account rx acceot flag since tx switching
+    /* In e1x there we only take into account rx accept flag since tx switching
      * isn't enabled. */
 	if (test_bit(BNX2X_ACCEPT_UNICAST, &p->rx_accept_flags))
 		/* accept matched ucast */
@@ -2271,8 +2248,7 @@ static int bnx2x_set_rx_mode_e2(struct bnx2x *bp,
 					       false);
 	}
 
-	/*
-	 * If FCoE Queue configuration has been requested configure the Rx and
+	/* If FCoE Queue configuration has been requested configure the Rx and
 	 * internal switching modes for this queue in separate rules.
 	 *
 	 * FCoE queue shell never be set to ACCEPT_ALL packets of any sort:
@@ -2308,8 +2284,7 @@ static int bnx2x_set_rx_mode_e2(struct bnx2x *bp,
 		}
 	}
 
-	/*
-	 * Set the ramrod header (most importantly - number of rules to
+	/* Set the ramrod header (most importantly - number of rules to
 	 * configure).
 	 */
 	bnx2x_rx_mode_set_rdata_hdr_e2(p->cid, &data->header, rule_idx);
@@ -2318,12 +2293,11 @@ static int bnx2x_set_rx_mode_e2(struct bnx2x *bp,
 			 data->header.rule_cnt, p->rx_accept_flags,
 			 p->tx_accept_flags);
 
-	/*
-	 *  No need for an explicit memory barrier here as long we would
-	 *  need to ensure the ordering of writing to the SPQ element
-	 *  and updating of the SPQ producer which involves a memory
-	 *  read and we will have to put a full memory barrier there
-	 *  (inside bnx2x_sp_post()).
+	/* No need for an explicit memory barrier here as long we would
+	 * need to ensure the ordering of writing to the SPQ element
+	 * and updating of the SPQ producer which involves a memory
+	 * read and we will have to put a full memory barrier there
+	 * (inside bnx2x_sp_post()).
 	 */
 
 	/* Send a ramrod */
@@ -2460,7 +2434,7 @@ static int bnx2x_mcast_enqueue_cmd(struct bnx2x *bp,
 		cur_mac = (struct bnx2x_mcast_mac_elem *)
 			  ((u8 *)new_cmd + sizeof(*new_cmd));
 
-		/* Push the MACs of the current command into the pendig command
+		/* Push the MACs of the current command into the pending command
 		 * MACs list: FIFO
 		 */
 		list_for_each_entry(pos, &p->mcast_list, link) {
@@ -3017,20 +2991,18 @@ static int bnx2x_mcast_setup_e2(struct bnx2x *bp,
 	if (!o->total_pending_num)
 		bnx2x_mcast_refresh_registry_e2(bp, o);
 
-	/*
-	 * If CLEAR_ONLY was requested - don't send a ramrod and clear
+	/* If CLEAR_ONLY was requested - don't send a ramrod and clear
 	 * RAMROD_PENDING status immediately.
 	 */
 	if (test_bit(RAMROD_DRV_CLR_ONLY, &p->ramrod_flags)) {
 		raw->clear_pending(raw);
 		return 0;
 	} else {
-		/*
-		 *  No need for an explicit memory barrier here as long we would
-		 *  need to ensure the ordering of writing to the SPQ element
-		 *  and updating of the SPQ producer which involves a memory
-		 *  read and we will have to put a full memory barrier there
-		 *  (inside bnx2x_sp_post()).
+		/* No need for an explicit memory barrier here as long we would
+		 * need to ensure the ordering of writing to the SPQ element
+		 * and updating of the SPQ producer which involves a memory
+		 * read and we will have to put a full memory barrier there
+		 * (inside bnx2x_sp_post()).
 		 */
 
 		/* Send a ramrod */
@@ -3104,7 +3076,7 @@ static inline void bnx2x_mcast_hdl_restore_e1h(struct bnx2x *bp,
 	}
 }
 
-/* On 57711 we write the multicast MACs' aproximate match
+/* On 57711 we write the multicast MACs' approximate match
  * table by directly into the TSTORM's internal RAM. So we don't
  * really need to handle any tricks to make it work.
  */
@@ -3227,7 +3199,7 @@ static void bnx2x_mcast_revert_e1(struct bnx2x *bp,
 
 	/* If current command hasn't been handled yet and we are
 	 * here means that it's meant to be dropped and we have to
-	 * update the number of outstandling MACs accordingly.
+	 * update the number of outstanding MACs accordingly.
 	 */
 	if (p->mcast_list_len)
 		o->total_pending_num -= o->max_cmd_len;
@@ -3503,20 +3475,18 @@ static int bnx2x_mcast_setup_e1(struct bnx2x *bp,
 	if (rc)
 		return rc;
 
-	/*
-	 * If CLEAR_ONLY was requested - don't send a ramrod and clear
+	/* If CLEAR_ONLY was requested - don't send a ramrod and clear
 	 * RAMROD_PENDING status immediately.
 	 */
 	if (test_bit(RAMROD_DRV_CLR_ONLY, &p->ramrod_flags)) {
 		raw->clear_pending(raw);
 		return 0;
 	} else {
-		/*
-		 *  No need for an explicit memory barrier here as long we would
-		 *  need to ensure the ordering of writing to the SPQ element
-		 *  and updating of the SPQ producer which involves a memory
-		 *  read and we will have to put a full memory barrier there
-		 *  (inside bnx2x_sp_post()).
+		/* No need for an explicit memory barrier here as long we would
+		 * need to ensure the ordering of writing to the SPQ element
+		 * and updating of the SPQ producer which involves a memory
+		 * read and we will have to put a full memory barrier there
+		 * (inside bnx2x_sp_post()).
 		 */
 
 		/* Send a ramrod */
@@ -3977,8 +3947,7 @@ void bnx2x_init_mac_credit_pool(struct bnx2x *bp,
 
 	} else {
 
-		/*
-		 * CAM credit is equaly divided between all active functions
+		/* CAM credit is equaly divided between all active functions
 		 * on the PATH.
 		 */
 		if ((func_num > 0)) {
@@ -3987,8 +3956,7 @@ void bnx2x_init_mac_credit_pool(struct bnx2x *bp,
 			else
 				cam_sz = BNX2X_CAM_SIZE_EMUL;
 
-			/*
-			 * No need for CAM entries handling for 57712 and
+			/* No need for CAM entries handling for 57712 and
 			 * newer.
 			 */
 			bnx2x_init_credit_pool(p, -1, cam_sz);
@@ -4005,14 +3973,12 @@ void bnx2x_init_vlan_credit_pool(struct bnx2x *bp,
 				 u8 func_num)
 {
 	if (CHIP_IS_E1x(bp)) {
-		/*
-		 * There is no VLAN credit in HW on 57710 and 57711 only
+		/* There is no VLAN credit in HW on 57710 and 57711 only
 		 * MAC / MAC-VLAN can be set
 		 */
 		bnx2x_init_credit_pool(p, 0, -1);
 	} else {
-		/*
-		 * CAM credit is equaly divided between all active functions
+		/* CAM credit is equally divided between all active functions
 		 * on the PATH.
 		 */
 		if (func_num > 0) {
@@ -4028,7 +3994,7 @@ void bnx2x_init_vlan_credit_pool(struct bnx2x *bp,
 /**
  * bnx2x_debug_print_ind_table - prints the indirection table configuration.
  *
- * @bp:		driver hanlde
+ * @bp:		driver handle
  * @p:		pointer to rss configuration
  *
  * Prints it when NETIF_MSG_IFUP debug level is configured.
@@ -4141,12 +4107,11 @@ static int bnx2x_setup_rss(struct bnx2x *bp,
 		data->capabilities |= ETH_RSS_UPDATE_RAMROD_DATA_UPDATE_RSS_KEY;
 	}
 
-	/*
-	 *  No need for an explicit memory barrier here as long we would
-	 *  need to ensure the ordering of writing to the SPQ element
-	 *  and updating of the SPQ producer which involves a memory
-	 *  read and we will have to put a full memory barrier there
-	 *  (inside bnx2x_sp_post()).
+	/* No need for an explicit memory barrier here as long we would
+	 * need to ensure the ordering of writing to the SPQ element
+	 * and updating of the SPQ producer which involves a memory
+	 * read and we will have to put a full memory barrier there
+	 * (inside bnx2x_sp_post()).
 	 */
 
 	/* Send a ramrod */
@@ -4312,7 +4277,7 @@ static int bnx2x_queue_comp_cmd(struct bnx2x *bp,
 	}
 
 	if (o->next_tx_only >= o->max_cos)
-		/* >= becuase tx only must always be smaller than cos since the
+		/* >= because tx only must always be smaller than cos since the
 		 * primary connection supports COS 0
 		 */
 		BNX2X_ERR("illegal value for next tx_only: %d. max cos was %d",
@@ -4625,12 +4590,11 @@ static inline int bnx2x_q_send_setup_e1x(struct bnx2x *bp,
 	/* Fill the ramrod data */
 	bnx2x_q_fill_setup_data_cmn(bp, params, rdata);
 
-	/*
-	 *  No need for an explicit memory barrier here as long we would
-	 *  need to ensure the ordering of writing to the SPQ element
-	 *  and updating of the SPQ producer which involves a memory
-	 *  read and we will have to put a full memory barrier there
-	 *  (inside bnx2x_sp_post()).
+	/* No need for an explicit memory barrier here as long we would
+	 * need to ensure the ordering of writing to the SPQ element
+	 * and updating of the SPQ producer which involves a memory
+	 * read and we will have to put a full memory barrier there
+	 * (inside bnx2x_sp_post()).
 	 */
 
 	return bnx2x_sp_post(bp, ramrod, o->cids[BNX2X_PRIMARY_CID_INDEX],
@@ -4654,12 +4618,11 @@ static inline int bnx2x_q_send_setup_e2(struct bnx2x *bp,
 	bnx2x_q_fill_setup_data_cmn(bp, params, rdata);
 	bnx2x_q_fill_setup_data_e2(bp, params, rdata);
 
-	/*
-	 *  No need for an explicit memory barrier here as long we would
-	 *  need to ensure the ordering of writing to the SPQ element
-	 *  and updating of the SPQ producer which involves a memory
-	 *  read and we will have to put a full memory barrier there
-	 *  (inside bnx2x_sp_post()).
+	/* No need for an explicit memory barrier here as long we would
+	 * need to ensure the ordering of writing to the SPQ element
+	 * and updating of the SPQ producer which involves a memory
+	 * read and we will have to put a full memory barrier there
+	 * (inside bnx2x_sp_post()).
 	 */
 
 	return bnx2x_sp_post(bp, ramrod, o->cids[BNX2X_PRIMARY_CID_INDEX],
@@ -4699,12 +4662,11 @@ static inline int bnx2x_q_send_setup_tx_only(struct bnx2x *bp,
 			 o->cids[cid_index], rdata->general.client_id,
 			 rdata->general.sp_client_id, rdata->general.cos);
 
-	/*
-	 *  No need for an explicit memory barrier here as long we would
-	 *  need to ensure the ordering of writing to the SPQ element
-	 *  and updating of the SPQ producer which involves a memory
-	 *  read and we will have to put a full memory barrier there
-	 *  (inside bnx2x_sp_post()).
+	/* No need for an explicit memory barrier here as long we would
+	 * need to ensure the ordering of writing to the SPQ element
+	 * and updating of the SPQ producer which involves a memory
+	 * read and we will have to put a full memory barrier there
+	 * (inside bnx2x_sp_post()).
 	 */
 
 	return bnx2x_sp_post(bp, ramrod, o->cids[cid_index],
@@ -4733,7 +4695,7 @@ static void bnx2x_q_fill_update_data(struct bnx2x *bp,
 		test_bit(BNX2X_Q_UPDATE_IN_VLAN_REM_CHNG,
 			 &params->update_flags);
 
-	/* Outer VLAN sripping */
+	/* Outer VLAN stripping */
 	data->outer_vlan_removal_enable_flg =
 		test_bit(BNX2X_Q_UPDATE_OUT_VLAN_REM, &params->update_flags);
 	data->outer_vlan_removal_change_flg =
@@ -4794,12 +4756,11 @@ static inline int bnx2x_q_send_update(struct bnx2x *bp,
 	/* Fill the ramrod data */
 	bnx2x_q_fill_update_data(bp, o, update_params, rdata);
 
-	/*
-	 *  No need for an explicit memory barrier here as long we would
-	 *  need to ensure the ordering of writing to the SPQ element
-	 *  and updating of the SPQ producer which involves a memory
-	 *  read and we will have to put a full memory barrier there
-	 *  (inside bnx2x_sp_post()).
+	/* No need for an explicit memory barrier here as long we would
+	 * need to ensure the ordering of writing to the SPQ element
+	 * and updating of the SPQ producer which involves a memory
+	 * read and we will have to put a full memory barrier there
+	 * (inside bnx2x_sp_post()).
 	 */
 
 	return bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_CLIENT_UPDATE,
@@ -5009,8 +4970,7 @@ static int bnx2x_queue_chk_transition(struct bnx2x *bp,
 		 &params->params.update;
 	u8 next_tx_only = o->num_tx_only;
 
-	/*
-	 * Forget all pending for completion commands if a driver only state
+	/* Forget all pending for completion commands if a driver only state
 	 * transition has been requested.
 	 */
 	if (test_bit(RAMROD_DRV_CLR_ONLY, &params->ramrod_flags)) {
@@ -5018,8 +4978,7 @@ static int bnx2x_queue_chk_transition(struct bnx2x *bp,
 		o->next_state = BNX2X_Q_STATE_MAX;
 	}
 
-	/*
-	 * Don't allow a next state transition if we are in the middle of
+	/* Don't allow a next state transition if we are in the middle of
 	 * the previous one.
 	 */
 	if (o->pending) {
@@ -5228,8 +5187,7 @@ enum bnx2x_func_state bnx2x_func_get_state(struct bnx2x *bp,
 	if (o->pending)
 		return BNX2X_F_STATE_MAX;
 
-	/*
-	 * unsure the order of reading of o->pending and o->state
+	/* unsure the order of reading of o->pending and o->state
 	 * o->pending should be read first
 	 */
 	rmb();
@@ -5327,8 +5285,7 @@ static int bnx2x_func_chk_transition(struct bnx2x *bp,
 	enum bnx2x_func_state state = o->state, next_state = BNX2X_F_STATE_MAX;
 	enum bnx2x_func_cmd cmd = params->cmd;
 
-	/*
-	 * Forget all pending for completion commands if a driver only state
+	/* Forget all pending for completion commands if a driver only state
 	 * transition has been requested.
 	 */
 	if (test_bit(RAMROD_DRV_CLR_ONLY, &params->ramrod_flags)) {
@@ -5336,8 +5293,7 @@ static int bnx2x_func_chk_transition(struct bnx2x *bp,
 		o->next_state = BNX2X_F_STATE_MAX;
 	}
 
-	/*
-	 * Don't allow a next state transition if we are in the middle of
+	/* Don't allow a next state transition if we are in the middle of
 	 * the previous one.
 	 */
 	if (o->pending)
@@ -5510,7 +5466,7 @@ static int bnx2x_func_hw_init(struct bnx2x *bp,
 		goto init_err;
 	}
 
-	/* Handle the beginning of COMMON_XXX pases separatelly... */
+	/* Handle the beginning of COMMON_XXX pases separately... */
 	switch (load_code) {
 	case FW_MSG_CODE_DRV_LOAD_COMMON_CHIP:
 		rc = bnx2x_func_init_cmn_chip(bp, drv);
@@ -5544,7 +5500,7 @@ static int bnx2x_func_hw_init(struct bnx2x *bp,
 init_err:
 	drv->gunzip_end(bp);
 
-	/* In case of success, complete the comand immediatelly: no ramrods
+	/* In case of success, complete the command immediately: no ramrods
 	 * have been sent.
 	 */
 	if (!rc)
@@ -5569,7 +5525,7 @@ static inline void bnx2x_func_reset_func(struct bnx2x *bp,
 }
 
 /**
- * bnx2x_func_reset_port - reser HW at port stage
+ * bnx2x_func_reset_port - reset HW at port stage
  *
  * @bp:		device handle
  * @drv:
@@ -5591,7 +5547,7 @@ static inline void bnx2x_func_reset_port(struct bnx2x *bp,
 }
 
 /**
- * bnx2x_func_reset_cmn - reser HW at common stage
+ * bnx2x_func_reset_cmn - reset HW at common stage
  *
  * @bp:		device handle
  * @drv:
@@ -5633,7 +5589,7 @@ static inline int bnx2x_func_hw_reset(struct bnx2x *bp,
 		break;
 	}
 
-	/* Complete the comand immediatelly: no ramrods have been sent. */
+	/* Complete the command immediately: no ramrods have been sent. */
 	o->complete_cmd(bp, o, BNX2X_F_CMD_HW_RESET);
 
 	return 0;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
index c4fffe0..798dfe9 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
@@ -34,8 +34,7 @@ enum {
 	RAMROD_RESTORE,
 	 /* Execute the next command now */
 	RAMROD_EXEC,
-	/*
-	 * Don't add a new command and continue execution of posponed
+	/* Don't add a new command and continue execution of postponed
 	 * commands. If not set a new command will be added to the
 	 * pending commands list.
 	 */
@@ -129,8 +128,7 @@ enum bnx2x_vlan_mac_cmd {
 struct bnx2x_vlan_mac_data {
 	/* Requested command: BNX2X_VLAN_MAC_XX */
 	enum bnx2x_vlan_mac_cmd cmd;
-	/*
-	 * used to contain the data related vlan_mac_flags bits from
+	/* used to contain the data related vlan_mac_flags bits from
 	 * ramrod parameters.
 	 */
 	unsigned long vlan_mac_flags;
@@ -190,14 +188,10 @@ typedef struct bnx2x_exeq_elem *
 				     struct bnx2x_exeq_elem *elem);
 
 struct bnx2x_exe_queue_obj {
-	/*
-	 * Commands pending for an execution.
-	 */
+	/* Commands pending for an execution. */
 	struct list_head	exe_queue;
 
-	/*
-	 * Commands pending for an completion.
-	 */
+	/* Commands pending for an completion. */
 	struct list_head	pending_comp;
 
 	spinlock_t		lock;
@@ -245,14 +239,13 @@ struct bnx2x_exe_queue_obj {
 };
 /***************** Classification verbs: Set/Del MAC/VLAN/VLAN-MAC ************/
 /*
- * Element in the VLAN_MAC registry list having all currenty configured
+ * Element in the VLAN_MAC registry list having all currently configured
  * rules.
  */
 struct bnx2x_vlan_mac_registry_elem {
 	struct list_head	link;
 
-	/*
-	 * Used to store the cam offset used for the mac/vlan/vlan-mac.
+	/* Used to store the cam offset used for the mac/vlan/vlan-mac.
 	 * Relevant for 57710 and 57711 only. VLANs and MACs share the
 	 * same CAM for these chips.
 	 */
@@ -310,7 +303,7 @@ struct bnx2x_vlan_mac_obj {
 	 * @param n number of elements to get
 	 * @param buf buffer preallocated by caller into which elements
 	 *            will be copied. Note elements are 4-byte aligned
-	 *            so buffer size must be able to accomodate the
+	 *            so buffer size must be able to accommodate the
 	 *            aligned elements.
 	 *
 	 * @return number of copied bytes
@@ -395,7 +388,7 @@ struct bnx2x_vlan_mac_obj {
 	 * @param bp
 	 * @param p Command parameters (RAMROD_COMP_WAIT bit in
 	 *          ramrod_flags is only taken into an account)
-	 * @param ppos a pointer to the cooky that should be given back in the
+	 * @param ppos a pointer to the cookie that should be given back in the
 	 *        next call to make function handle the next element. If
 	 *        *ppos is set to NULL it will restart the iterator.
 	 *        If returned *ppos == NULL this means that the last
@@ -408,7 +401,7 @@ struct bnx2x_vlan_mac_obj {
 		       struct bnx2x_vlan_mac_registry_elem **ppos);
 
 	/**
-	 * Should be called on a completion arival.
+	 * Should be called on a completion arrival.
 	 *
 	 * @param bp
 	 * @param o
@@ -447,7 +440,7 @@ void bnx2x_set_mac_in_nig(struct bnx2x *bp,
 
 /** RX_MODE verbs:DROP_ALL/ACCEPT_ALL/ACCEPT_ALL_MULTI/ACCEPT_ALL_VLAN/NORMAL */
 
-/* RX_MODE ramrod spesial flags: set in rx_mode_flags field in
+/* RX_MODE ramrod special flags: set in rx_mode_flags field in
  * a bnx2x_rx_mode_ramrod_params.
  */
 enum {
@@ -475,8 +468,7 @@ struct bnx2x_rx_mode_ramrod_params {
 	unsigned long ramrod_flags;
 	unsigned long rx_mode_flags;
 
-	/*
-	 * rdata is either a pointer to eth_filter_rules_ramrod_data(e2) or to
+	/* rdata is either a pointer to eth_filter_rules_ramrod_data(e2) or to
 	 * a tstorm_eth_mac_filter_config (e1x).
 	 */
 	void *rdata;
@@ -646,12 +638,11 @@ struct bnx2x_credit_pool_obj {
 	/* Maximum allowed credit. put() will check against it. */
 	int		pool_sz;
 
-	/*
-	 *  Allocate a pool table statically.
+	/* Allocate a pool table statically.
 	 *
-	 *  Currently the mamimum allowed size is MAX_MAC_CREDIT_E2(272)
+	 * Currently the maximum allowed size is MAX_MAC_CREDIT_E2(272)
 	 *
-	 *  The set bit in the table will mean that the entry is available.
+	 * The set bit in the table will mean that the entry is available.
 	 */
 #define BNX2X_POOL_VEC_SIZE	(MAX_MAC_CREDIT_E2 / 64)
 	u64		pool_mirror[BNX2X_POOL_VEC_SIZE];
@@ -832,7 +823,7 @@ enum {
 	BNX2X_Q_FLG_TUN_INC_INNER_IP_ID
 };
 
-/* Queue type options: queue type may be a compination of below. */
+/* Queue type options: queue type may be a combination of below. */
 enum bnx2x_q_type {
 	/** TODO: Consider moving both these flags into the init()
 	 *        ramrod params.
@@ -1002,10 +993,9 @@ struct bnx2x_queue_sp_obj {
 	u8		cl_id;
 	u8		func_id;
 
-	/*
-	 * number of traffic classes supported by queue.
-	 * The primary connection of the queue suppotrs the first traffic
-	 * class. Any further traffic class is suppoted by a tx-only
+	/* number of traffic classes supported by queue.
+	 * The primary connection of the queue supports the first traffic
+	 * class. Any further traffic class is supported by a tx-only
 	 * connection.
 	 *
 	 * Therefore max_cos is also a number of valid entries in the cids
@@ -1021,7 +1011,7 @@ struct bnx2x_queue_sp_obj {
 
 	/* BNX2X_Q_CMD_XX bits. This object implements "one
 	 * pending" paradigm but for debug and tracing purposes it's
-	 * more convinient to have different bits for different
+	 * more convenient to have different bits for different
 	 * commands.
 	 */
 	unsigned long	pending;
@@ -1210,7 +1200,7 @@ struct bnx2x_func_sp_obj {
 
 	/* BNX2X_FUNC_CMD_XX bits. This object implements "one
 	 * pending" paradigm but for debug and tracing purposes it's
-	 * more convinient to have different bits for different
+	 * more convenient to have different bits for different
 	 * commands.
 	 */
 	unsigned long		pending;
@@ -1329,7 +1319,7 @@ void bnx2x_init_rx_mode_obj(struct bnx2x *bp,
  *
  * @p: Command parameters
  *
- * Return: 0 - if operation was successfull and there is no pending completions,
+ * Return: 0 - if operation was successful and there is no pending completions,
  *         positive number - if there are pending completions,
  *         negative - if there were errors
  */
@@ -1361,7 +1351,7 @@ void bnx2x_init_mcast_obj(struct bnx2x *bp,
  * the current command will be enqueued to the tail of the
  * pending commands list.
  *
- * Return: 0 is operation was successfull and there are no pending completions,
+ * Return: 0 is operation was successful and there are no pending completions,
  *         negative if there were errors, positive if there are pending
  *         completions.
  */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index ea492c7..b2ab288 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -1341,7 +1341,7 @@ int bnx2x_vfop_qdown_cmd(struct bnx2x *bp,
  */
 
 /* internal vf enable - until vf is enabled internally all transactions
- * are blocked. this routine should always be called last with pretend.
+ * are blocked. This routine should always be called last with pretend.
  */
 static void bnx2x_vf_enable_internal(struct bnx2x *bp, u8 enable)
 {
@@ -1743,7 +1743,7 @@ void bnx2x_iov_init_dq(struct bnx2x *bp)
 	REG_WR(bp, DORQ_REG_VF_TYPE_MIN_MCID_0, 0);
 	REG_WR(bp, DORQ_REG_VF_TYPE_MAX_MCID_0, 0x1ffff);
 
-	/* set the number of VF alllowed doorbells to the full DQ range */
+	/* set the number of VF allowed doorbells to the full DQ range */
 	REG_WR(bp, DORQ_REG_VF_NORM_MAX_CID_COUNT, 0x20000);
 
 	/* set the VF doorbell threshold */
@@ -2403,7 +2403,7 @@ int bnx2x_iov_eq_sp_event(struct bnx2x *bp, union event_ring_elem *elem)
 
 	/* extract vf and rxq index from vf_cid - relies on the following:
 	 * 1. vfid on cid reflects the true abs_vfid
-	 * 2. the max number of VFs (per path) is 64
+	 * 2. The max number of VFs (per path) is 64
 	 */
 	qidx = cid & ((1 << BNX2X_VF_CID_WND)-1);
 	abs_vfid = (cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
@@ -2461,7 +2461,7 @@ static struct bnx2x_virtf *bnx2x_vf_by_cid(struct bnx2x *bp, int vf_cid)
 {
 	/* extract the vf from vf_cid - relies on the following:
 	 * 1. vfid on cid reflects the true abs_vfid
-	 * 2. the max number of VFs (per path) is 64
+	 * 2. The max number of VFs (per path) is 64
 	 */
 	int abs_vfid = (vf_cid >> BNX2X_VF_CID_WND) & (BNX2X_MAX_NUM_OF_VFS-1);
 	return bnx2x_vf_by_abs_fid(bp, abs_vfid);
@@ -2480,7 +2480,7 @@ void bnx2x_iov_set_queue_sp_obj(struct bnx2x *bp, int vf_cid,
 	if (vf) {
 		/* extract queue index from vf_cid - relies on the following:
 		 * 1. vfid on cid reflects the true abs_vfid
-		 * 2. the max number of VFs (per path) is 64
+		 * 2. The max number of VFs (per path) is 64
 		 */
 		int q_index = vf_cid & ((1 << BNX2X_VF_CID_WND)-1);
 		*q_obj = &bnx2x_vfq(vf, q_index, sp_obj);
@@ -2705,7 +2705,7 @@ int bnx2x_vf_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
 	}
 
 	/* static allocation:
-	 * the global maximum number are fixed per VF. fail the request if
+	 * the global maximum number are fixed per VF. Fail the request if
 	 * requested number exceed these globals
 	 */
 	if (!bnx2x_vf_chk_avail_resc(bp, vf, resc)) {
@@ -2890,7 +2890,7 @@ int bnx2x_vfop_close_cmd(struct bnx2x *bp,
 	return -ENOMEM;
 }
 
-/* VF release can be called either: 1. the VF was acquired but
+/* VF release can be called either: 1. The VF was acquired but
  * not enabled 2. the vf was enabled or in the process of being
  * enabled
  */
@@ -3140,7 +3140,7 @@ int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
 			/* mac configured by ndo so its in bulletin board */
 			memcpy(&ivi->mac, bulletin->mac, ETH_ALEN);
 		else
-			/* funtion has not been loaded yet. Show mac as 0s */
+			/* function has not been loaded yet. Show mac as 0s */
 			memset(&ivi->mac, 0, ETH_ALEN);
 
 		/* vlan */
@@ -3148,7 +3148,7 @@ int bnx2x_get_vf_config(struct net_device *dev, int vfidx,
 			/* vlan configured by ndo so its in bulletin board */
 			memcpy(&ivi->vlan, &bulletin->vlan, VLAN_HLEN);
 		else
-			/* funtion has not been loaded yet. Show vlans as 0s */
+			/* function has not been loaded yet. Show vlans as 0s */
 			memset(&ivi->vlan, 0, VLAN_HLEN);
 	}
 
@@ -3188,7 +3188,7 @@ int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac)
 		return -EINVAL;
 	}
 
-	/* update PF's copy of the VF's bulletin. will no longer accept mac
+	/* update PF's copy of the VF's bulletin. Will no longer accept mac
 	 * configuration requests from vf unless match this mac
 	 */
 	bulletin->valid_bitmap |= 1 << MAC_ADDR_VALID;
@@ -3357,8 +3357,11 @@ int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos)
 	return 0;
 }
 
-/* crc is the first field in the bulletin board. compute the crc over the
- * entire bulletin board excluding the crc field itself
+/* crc is the first field in the bulletin board. Compute the crc over the
+ * entire bulletin board excluding the crc field itself. Use the length field
+ * as the Bulletin Board was posted by a PF with possibly a different version
+ * from the vf which will sample it. Therefore, the length is computed by the
+ * PF and the used blindly by the VF.
  */
 u32 bnx2x_crc_vf_bulletin(struct bnx2x *bp,
 			  struct pf_vf_bulletin_content *bulletin)
@@ -3451,7 +3454,7 @@ int bnx2x_open_epilog(struct bnx2x *bp)
 	 * register_netdevice which must have rtnl lock taken. As we are holding
 	 * the lock right now, that could only work if the probe would not take
 	 * the lock. However, as the probe of the vf may be called from other
-	 * contexts as well (such as passthrough to vm failes) it can't assume
+	 * contexts as well (such as passthrough to vm fails) it can't assume
 	 * the lock is being held for it. Using delayed work here allows the
 	 * probe code to simply take the lock (i.e. wait for it to be released
 	 * if it is being held). We only want to do this if the number of VFs
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 0397922..3e7cb83 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -197,7 +197,7 @@ struct bnx2x_virtf {
 
 	u8 state;
 #define VF_FREE		0	/* VF ready to be acquired holds no resc */
-#define VF_ACQUIRED	1	/* VF aquired, but not initalized */
+#define VF_ACQUIRED	1	/* VF acquired, but not initialized */
 #define VF_ENABLED	2	/* VF Enabled */
 #define VF_RESET	3	/* VF FLR'd, pending cleanup */
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index 2826066..f55fa072 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -233,7 +233,7 @@ int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count)
 
 		attempts++;
 
-		/* test whether the PF accepted our request. If not, humble the
+		/* test whether the PF accepted our request. If not, humble
 		 * the request and try again.
 		 */
 		if (bp->acquire_resp.hdr.status == PFVF_STATUS_SUCCESS) {
@@ -787,7 +787,7 @@ static inline void bnx2x_set_vf_mbxs_valid(struct bnx2x *bp)
 		storm_memset_vf_mbx_valid(bp, bnx2x_vf(bp, i, abs_vfid));
 }
 
-/* enable vf_pf mailbox (aka vf-pf-chanell) */
+/* enable vf_pf mailbox (aka vf-pf-channel) */
 void bnx2x_vf_enable_mbx(struct bnx2x *bp, u8 abs_vfid)
 {
 	bnx2x_vf_flr_clnup_epilog(bp, abs_vfid);
@@ -1072,7 +1072,7 @@ static void bnx2x_vf_mbx_set_q_flags(struct bnx2x *bp, u32 mbx_q_flags,
 	if (mbx_q_flags & VFPF_QUEUE_FLG_DHC)
 		__set_bit(BNX2X_Q_FLG_DHC, sp_q_flags);
 
-	/* outer vlan removal is set according to the PF's multi fuction mode */
+	/* outer vlan removal is set according to PF's multi function mode */
 	if (IS_MF_SD(bp))
 		__set_bit(BNX2X_Q_FLG_OV, sp_q_flags);
 }
@@ -1104,7 +1104,7 @@ static void bnx2x_vf_mbx_setup_q(struct bnx2x *bp, struct bnx2x_virtf *vf,
 		struct bnx2x_queue_init_params *init_p;
 		struct bnx2x_queue_setup_params *setup_p;
 
-		/* reinit the VF operation context */
+		/* re-init the VF operation context */
 		memset(&vf->op_params.qctor, 0 , sizeof(vf->op_params.qctor));
 		setup_p = &vf->op_params.qctor.prep_qsetup;
 		init_p =  &vf->op_params.qctor.qstate.params.init;
-- 
cgit v0.10.2


From 3cdeec22e40264e40d34d8242b4ce7461329a80a Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sun, 2 Jun 2013 00:06:19 +0000
Subject: bnx2x: Semantic removal and beautification

This patch introduces several small  changes to the driver, none which actually
change any flow:
 1. Removes prototypes of unexisting functions and unused defines.
 2. Fixes alignment and spacing issues.
 3. Changes numeric usage into constants.
 4. Remove unnecessary parenthesis.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index 4a643d7..68fefa8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -493,9 +493,6 @@ void bnx2x_update_max_mf_config(struct bnx2x *bp, u32 value);
 /* Error handling */
 void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl);
 
-/* validate currect fw is loaded */
-bool bnx2x_test_firmware_version(struct bnx2x *bp, bool is_err);
-
 /* dev_close main block */
 int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link);
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 82f3696..28b8fd5 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -102,8 +102,6 @@ static int disable_tpa;
 module_param(disable_tpa, int, 0);
 MODULE_PARM_DESC(disable_tpa, " Disable the TPA (LRO) feature");
 
-#define INT_MODE_INTx			1
-#define INT_MODE_MSI			2
 int int_mode;
 module_param(int_mode, int, 0);
 MODULE_PARM_DESC(int_mode, " Force interrupt mode other than MSI-X "
@@ -3068,7 +3066,7 @@ static void bnx2x_pf_rx_q_prep(struct bnx2x *bp,
 	 * placed on the BD (not including paddings).
 	 */
 	rxq_init->buf_sz = fp->rx_buf_size - BNX2X_FW_RX_ALIGN_START -
-		BNX2X_FW_RX_ALIGN_END -	IP_HEADER_ALIGNMENT_PADDING;
+			   BNX2X_FW_RX_ALIGN_END - IP_HEADER_ALIGNMENT_PADDING;
 
 	rxq_init->cl_qzone_id = fp->cl_qzone_id;
 	rxq_init->tpa_agg_sz = tpa_agg_size;
@@ -3619,15 +3617,14 @@ static int bnx2x_acquire_alr(struct bnx2x *bp)
 
 	might_sleep();
 	for (j = 0; j < 1000; j++) {
-		val = (1UL << 31);
-		REG_WR(bp, GRCBASE_MCP + 0x9c, val);
-		val = REG_RD(bp, GRCBASE_MCP + 0x9c);
-		if (val & (1L << 31))
+		REG_WR(bp, MCP_REG_MCPR_ACCESS_LOCK, MCPR_ACCESS_LOCK_LOCK);
+		val = REG_RD(bp, MCP_REG_MCPR_ACCESS_LOCK);
+		if (val & MCPR_ACCESS_LOCK_LOCK)
 			break;
 
 		msleep(5);
 	}
-	if (!(val & (1L << 31))) {
+	if (!(val & MCPR_ACCESS_LOCK_LOCK)) {
 		BNX2X_ERR("Cannot acquire MCP access lock register\n");
 		rc = -EBUSY;
 	}
@@ -3638,7 +3635,7 @@ static int bnx2x_acquire_alr(struct bnx2x *bp)
 /* release split MCP access lock register */
 static void bnx2x_release_alr(struct bnx2x *bp)
 {
-	REG_WR(bp, GRCBASE_MCP + 0x9c, 0);
+	REG_WR(bp, MCP_REG_MCPR_ACCESS_LOCK, 0);
 }
 
 #define BNX2X_DEF_SB_ATT_IDX	0x0001
@@ -4086,7 +4083,7 @@ static void bnx2x_clear_reset_global(struct bnx2x *bp)
  */
 static bool bnx2x_reset_is_global(struct bnx2x *bp)
 {
-	u32 val	= REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
+	u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
 
 	DP(NETIF_MSG_HW, "GEN_REG_VAL=0x%08x\n", val);
 	return (val & BNX2X_GLOBAL_RESET_BIT) ? true : false;
@@ -4137,7 +4134,7 @@ void bnx2x_set_reset_in_progress(struct bnx2x *bp)
  */
 bool bnx2x_reset_is_done(struct bnx2x *bp, int engine)
 {
-	u32 val	= REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
+	u32 val = REG_RD(bp, BNX2X_RECOVERY_GLOB_REG);
 	u32 bit = engine ?
 		BNX2X_PATH1_RST_IN_PROG_BIT : BNX2X_PATH0_RST_IN_PROG_BIT;
 
@@ -6013,11 +6010,6 @@ void bnx2x_pre_irq_nic_init(struct bnx2x *bp)
 	bnx2x_init_rx_rings(bp);
 	bnx2x_init_tx_rings(bp);
 
-	if (IS_VF(bp)) {
-		bnx2x_memset_stats(bp);
-		return;
-	}
-
 	if (IS_PF(bp)) {
 		/* Initialize MOD_ABS interrupts */
 		bnx2x_init_mod_abs_int(bp, &bp->link_vars, bp->common.chip_id,
@@ -6028,6 +6020,8 @@ void bnx2x_pre_irq_nic_init(struct bnx2x *bp)
 		bnx2x_init_def_sb(bp);
 		bnx2x_update_dsb_idx(bp);
 		bnx2x_init_sp_ring(bp);
+	} else {
+		bnx2x_memset_stats(bp);
 	}
 }
 
@@ -10011,7 +10005,7 @@ static int bnx2x_prev_unload(struct bnx2x *bp)
 		      (MISC_REG_DRIVER_CONTROL_1 + BP_FUNC(bp) * 8) :
 		      (MISC_REG_DRIVER_CONTROL_7 + (BP_FUNC(bp) - 6) * 8);
 
-	hw_lock_val = (REG_RD(bp, hw_lock_reg));
+	hw_lock_val = REG_RD(bp, hw_lock_reg);
 	if (hw_lock_val) {
 		if (hw_lock_val & HW_LOCK_RESOURCE_NVRAM) {
 			BNX2X_DEV_INFO("Release Previously held NVRAM lock\n");
@@ -10026,7 +10020,7 @@ static int bnx2x_prev_unload(struct bnx2x *bp)
 
 	if (MCPR_ACCESS_LOCK_LOCK & REG_RD(bp, MCP_REG_MCPR_ACCESS_LOCK)) {
 		BNX2X_DEV_INFO("Release previously held alr\n");
-		REG_WR(bp, MCP_REG_MCPR_ACCESS_LOCK, 0);
+		bnx2x_release_alr(bp);
 	}
 
 	do {
@@ -11878,7 +11872,7 @@ static const struct net_device_ops bnx2x_netdev_ops = {
 	.ndo_setup_tc		= bnx2x_setup_tc,
 #ifdef CONFIG_BNX2X_SRIOV
 	.ndo_set_vf_mac		= bnx2x_set_vf_mac,
-	.ndo_set_vf_vlan        = bnx2x_set_vf_vlan,
+	.ndo_set_vf_vlan	= bnx2x_set_vf_vlan,
 	.ndo_get_vf_config	= bnx2x_get_vf_config,
 #endif
 #ifdef NETDEV_FCOE_WWNN
-- 
cgit v0.10.2


From 6bf07b8e3666257c5172ab1681b377e547747d9b Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sun, 2 Jun 2013 00:06:20 +0000
Subject: bnx2x: Revise prints

This patch revises many bnx2x prints - mainly fixing print typos and
adding some new debug prints (mostly for parity issues).

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 8f551cf..f76597e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1900,7 +1900,6 @@ u32 bnx2x_dmae_opcode(struct bnx2x *bp, u8 src_type, u8 dst_type,
 void bnx2x_prep_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae,
 			       u8 src_type, u8 dst_type);
 int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae);
-void bnx2x_dp_dmae(struct bnx2x *bp, struct dmae_command *dmae, int msglvl);
 
 /* FLR related routines */
 u32 bnx2x_flr_clnup_poll_count(struct bnx2x *bp);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index ef7fed5..14b5acd 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2162,10 +2162,10 @@ static int bnx2x_alloc_fw_stats_mem(struct bnx2x *bp)
 	bp->fw_stats_data_mapping = bp->fw_stats_mapping +
 		bp->fw_stats_req_sz;
 
-	DP(BNX2X_MSG_SP, "statistics request base address set to %x %x",
+	DP(BNX2X_MSG_SP, "statistics request base address set to %x %x\n",
 	   U64_HI(bp->fw_stats_req_mapping),
 	   U64_LO(bp->fw_stats_req_mapping));
-	DP(BNX2X_MSG_SP, "statistics data base address set to %x %x",
+	DP(BNX2X_MSG_SP, "statistics data base address set to %x %x\n",
 	   U64_HI(bp->fw_stats_data_mapping),
 	   U64_LO(bp->fw_stats_data_mapping));
 	return 0;
@@ -2240,7 +2240,7 @@ int bnx2x_nic_load_analyze_req(struct bnx2x *bp, u32 load_code)
 
 		/* abort nic load if version mismatch */
 		if (my_fw != loaded_fw) {
-			BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. aborting\n",
+			BNX2X_ERR("bnx2x with FW %x was already loaded which mismatches my %x FW. Aborting\n",
 				  loaded_fw, my_fw);
 			return -EBUSY;
 		}
@@ -3977,7 +3977,7 @@ int bnx2x_setup_tc(struct net_device *dev, u8 num_tc)
 
 	/* requested to support too many traffic classes */
 	if (num_tc > bp->max_cos) {
-		BNX2X_ERR("support for too many traffic classes requested: %d. max supported is %d\n",
+		BNX2X_ERR("support for too many traffic classes requested: %d. Max supported is %d\n",
 			  num_tc, bp->max_cos);
 		return -EINVAL;
 	}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index 68fefa8..650bb52 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -49,13 +49,15 @@ extern int int_mode;
 		} \
 	} while (0)
 
-#define BNX2X_PCI_ALLOC(x, y, size)				\
-do {								\
-	x = dma_alloc_coherent(&bp->pdev->dev, size, y,		\
-			       GFP_KERNEL | __GFP_ZERO);	\
-	if (x == NULL)						\
-		goto alloc_mem_err;				\
-} while (0)
+#define BNX2X_PCI_ALLOC(x, y, size) \
+	do { \
+		x = dma_alloc_coherent(&bp->pdev->dev, size, y, \
+				       GFP_KERNEL | __GFP_ZERO); \
+		if (x == NULL) \
+			goto alloc_mem_err; \
+		DP(NETIF_MSG_HW, "BNX2X_PCI_ALLOC: Physical %Lx Virtual %p\n", \
+		   (unsigned long long)(*y), x); \
+	} while (0)
 
 #define BNX2X_ALLOC(x, size) \
 	do { \
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 210614e..0c94df4 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -2381,7 +2381,7 @@ static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
 				*flags |= DCB_FEATCFG_ERROR;
 			break;
 		default:
-			BNX2X_ERR("Non valid featrue-ID\n");
+			BNX2X_ERR("Non valid feature-ID\n");
 			rval = 1;
 			break;
 		}
@@ -2422,7 +2422,7 @@ static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
 				flags & DCB_FEATCFG_WILLING ? 1 : 0;
 			break;
 		default:
-			BNX2X_ERR("Non valid featrue-ID\n");
+			BNX2X_ERR("Non valid feature-ID\n");
 			rval = 1;
 			break;
 		}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 28b8fd5..60ff1aa 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -371,9 +371,11 @@ static u32 bnx2x_reg_rd_ind(struct bnx2x *bp, u32 addr)
 #define DMAE_DP_DST_PCI		"pci dst_addr [%x:%08x]"
 #define DMAE_DP_DST_NONE	"dst_addr [none]"
 
-void bnx2x_dp_dmae(struct bnx2x *bp, struct dmae_command *dmae, int msglvl)
+static void bnx2x_dp_dmae(struct bnx2x *bp,
+			  struct dmae_command *dmae, int msglvl)
 {
 	u32 src_type = dmae->opcode & DMAE_COMMAND_SRC;
+	int i;
 
 	switch (dmae->opcode & DMAE_COMMAND_DST) {
 	case DMAE_CMD_DST_PCI:
@@ -429,6 +431,10 @@ void bnx2x_dp_dmae(struct bnx2x *bp, struct dmae_command *dmae, int msglvl)
 			   dmae->comp_val);
 		break;
 	}
+
+	for (i = 0; i < (sizeof(struct dmae_command)/4); i++)
+		DP(msglvl, "DMAE RAW [%02d]: 0x%08x\n",
+		   i, *(((u32 *)dmae) + i));
 }
 
 /* copy command into DMAE command memory and set DMAE command go */
@@ -503,8 +509,9 @@ int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae)
 	int cnt = CHIP_REV_IS_SLOW(bp) ? (400000) : 4000;
 	int rc = 0;
 
-	/*
-	 * Lock the dmae channel. Disable BHs to prevent a dead-lock
+	bnx2x_dp_dmae(bp, dmae, BNX2X_MSG_DMAE);
+
+	/* Lock the dmae channel. Disable BHs to prevent a dead-lock
 	 * as long as this code is called both from syscall context and
 	 * from ndo_set_rx_mode() flow that may be called from BH.
 	 */
@@ -543,6 +550,7 @@ unlock:
 void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr,
 		      u32 len32)
 {
+	int rc;
 	struct dmae_command dmae;
 
 	if (!bp->dmae_ready) {
@@ -566,11 +574,16 @@ void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr,
 	dmae.len = len32;
 
 	/* issue the command and wait for completion */
-	bnx2x_issue_dmae_with_comp(bp, &dmae);
+	rc = bnx2x_issue_dmae_with_comp(bp, &dmae);
+	if (rc) {
+		BNX2X_ERR("DMAE returned failure %d\n", rc);
+		bnx2x_panic();
+	}
 }
 
 void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32)
 {
+	int rc;
 	struct dmae_command dmae;
 
 	if (!bp->dmae_ready) {
@@ -598,7 +611,11 @@ void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32)
 	dmae.len = len32;
 
 	/* issue the command and wait for completion */
-	bnx2x_issue_dmae_with_comp(bp, &dmae);
+	rc = bnx2x_issue_dmae_with_comp(bp, &dmae);
+	if (rc) {
+		BNX2X_ERR("DMAE returned failure %d\n", rc);
+		bnx2x_panic();
+	};
 }
 
 static void bnx2x_write_dmae_phys_len(struct bnx2x *bp, dma_addr_t phys_addr,
@@ -834,7 +851,7 @@ static void bnx2x_hc_int_disable(struct bnx2x *bp)
 
 	REG_WR(bp, addr, val);
 	if (REG_RD(bp, addr) != val)
-		BNX2X_ERR("BUG! proper val not read from IGU!\n");
+		BNX2X_ERR("BUG! Proper val not read from IGU!\n");
 }
 
 static void bnx2x_igu_int_disable(struct bnx2x *bp)
@@ -852,7 +869,7 @@ static void bnx2x_igu_int_disable(struct bnx2x *bp)
 
 	REG_WR(bp, IGU_REG_PF_CONFIGURATION, val);
 	if (REG_RD(bp, IGU_REG_PF_CONFIGURATION) != val)
-		BNX2X_ERR("BUG! proper val not read from IGU!\n");
+		BNX2X_ERR("BUG! Proper val not read from IGU!\n");
 }
 
 static void bnx2x_int_disable(struct bnx2x *bp)
@@ -1021,6 +1038,7 @@ void bnx2x_panic_dump(struct bnx2x *bp, bool disable_int)
 #ifdef BNX2X_STOP_ON_ERROR
 
 	/* event queue */
+	BNX2X_ERR("eq cons %x prod %x\n", bp->eq_cons, bp->eq_prod);
 	for (i = 0; i < NUM_EQ_DESC; i++) {
 		u32 *data = (u32 *)&bp->eq_ring[i].message.data;
 
@@ -1379,7 +1397,7 @@ static int bnx2x_poll_hw_usage_counters(struct bnx2x *bp, u32 poll_cnt)
 	/* Wait DMAE PF usage counter to zero */
 	if (bnx2x_flr_clnup_poll_hw_counter(bp,
 			dmae_reg_go_c[INIT_DMAE_C(bp)],
-			"DMAE dommand register timed out",
+			"DMAE command register timed out",
 			poll_cnt))
 		return 1;
 
@@ -1759,7 +1777,7 @@ void bnx2x_sp_event(struct bnx2x_fastpath *fp, union eth_rx_cqe *rr_cqe)
 		break;
 
 	case (RAMROD_CMD_ID_ETH_TERMINATE):
-		DP(BNX2X_MSG_SP, "got MULTI[%d] teminate ramrod\n", cid);
+		DP(BNX2X_MSG_SP, "got MULTI[%d] terminate ramrod\n", cid);
 		drv_cmd = BNX2X_Q_CMD_TERMINATE;
 		break;
 
@@ -1971,8 +1989,8 @@ int bnx2x_release_hw_lock(struct bnx2x *bp, u32 resource)
 	/* Validating that the resource is currently taken */
 	lock_status = REG_RD(bp, hw_lock_control_reg);
 	if (!(lock_status & resource_bit)) {
-		BNX2X_ERR("lock_status 0x%x resource_bit 0x%x. unlock was called but lock wasn't taken!\n",
-		   lock_status, resource_bit);
+		BNX2X_ERR("lock_status 0x%x resource_bit 0x%x. Unlock was called but lock wasn't taken!\n",
+			  lock_status, resource_bit);
 		return -EFAULT;
 	}
 
@@ -4237,13 +4255,18 @@ static bool bnx2x_get_load_status(struct bnx2x *bp, int engine)
 	return val != 0;
 }
 
+static void _print_parity(struct bnx2x *bp, u32 reg)
+{
+	pr_cont(" [0x%08x] ", REG_RD(bp, reg));
+}
+
 static void _print_next_block(int idx, const char *blk)
 {
 	pr_cont("%s%s", idx ? ", " : "", blk);
 }
 
-static int bnx2x_check_blocks_with_parity0(u32 sig, int par_num,
-					   bool print)
+static int bnx2x_check_blocks_with_parity0(struct bnx2x *bp, u32 sig,
+					    int par_num, bool print)
 {
 	int i = 0;
 	u32 cur_bit = 0;
@@ -4252,33 +4275,54 @@ static int bnx2x_check_blocks_with_parity0(u32 sig, int par_num,
 		if (sig & cur_bit) {
 			switch (cur_bit) {
 			case AEU_INPUTS_ATTN_BITS_BRB_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "BRB");
+					_print_parity(bp,
+						      BRB1_REG_BRB1_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_PARSER_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "PARSER");
+					_print_parity(bp, PRS_REG_PRS_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_TSDM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "TSDM");
+					_print_parity(bp,
+						      TSDM_REG_TSDM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_SEARCHER_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++,
 							  "SEARCHER");
+					_print_parity(bp, SRC_REG_SRC_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_TCM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "TCM");
+					_print_parity(bp,
+						      TCM_REG_TCM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "TSEMI");
+					_print_parity(bp,
+						      TSEM_REG_TSEM_PRTY_STS_0);
+					_print_parity(bp,
+						      TSEM_REG_TSEM_PRTY_STS_1);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "XPB");
+					_print_parity(bp, GRCBASE_XPB +
+							  PB_REG_PB_PRTY_STS);
+				}
 				break;
 			}
 
@@ -4290,8 +4334,9 @@ static int bnx2x_check_blocks_with_parity0(u32 sig, int par_num,
 	return par_num;
 }
 
-static int bnx2x_check_blocks_with_parity1(u32 sig, int par_num,
-					   bool *global, bool print)
+static int bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig,
+					    int par_num, bool *global,
+					    bool print)
 {
 	int i = 0;
 	u32 cur_bit = 0;
@@ -4300,37 +4345,66 @@ static int bnx2x_check_blocks_with_parity1(u32 sig, int par_num,
 		if (sig & cur_bit) {
 			switch (cur_bit) {
 			case AEU_INPUTS_ATTN_BITS_PBF_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "PBF");
+					_print_parity(bp, PBF_REG_PBF_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_QM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "QM");
+					_print_parity(bp, QM_REG_QM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_TIMERS_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "TM");
+					_print_parity(bp, TM_REG_TM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_XSDM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "XSDM");
+					_print_parity(bp,
+						      XSDM_REG_XSDM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_XCM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "XCM");
+					_print_parity(bp, XCM_REG_XCM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_XSEMI_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "XSEMI");
+					_print_parity(bp,
+						      XSEM_REG_XSEM_PRTY_STS_0);
+					_print_parity(bp,
+						      XSEM_REG_XSEM_PRTY_STS_1);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_DOORBELLQ_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++,
 							  "DOORBELLQ");
+					_print_parity(bp,
+						      DORQ_REG_DORQ_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_NIG_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "NIG");
+					if (CHIP_IS_E1x(bp)) {
+						_print_parity(bp,
+							NIG_REG_NIG_PRTY_STS);
+					} else {
+						_print_parity(bp,
+							NIG_REG_NIG_PRTY_STS_0);
+						_print_parity(bp,
+							NIG_REG_NIG_PRTY_STS_1);
+					}
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_VAUX_PCI_CORE_PARITY_ERROR:
 				if (print)
@@ -4339,32 +4413,52 @@ static int bnx2x_check_blocks_with_parity1(u32 sig, int par_num,
 				*global = true;
 				break;
 			case AEU_INPUTS_ATTN_BITS_DEBUG_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "DEBUG");
+					_print_parity(bp, DBG_REG_DBG_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_USDM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "USDM");
+					_print_parity(bp,
+						      USDM_REG_USDM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_UCM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "UCM");
+					_print_parity(bp, UCM_REG_UCM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_USEMI_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "USEMI");
+					_print_parity(bp,
+						      USEM_REG_USEM_PRTY_STS_0);
+					_print_parity(bp,
+						      USEM_REG_USEM_PRTY_STS_1);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_UPB_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "UPB");
+					_print_parity(bp, GRCBASE_UPB +
+							  PB_REG_PB_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_CSDM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "CSDM");
+					_print_parity(bp,
+						      CSDM_REG_CSDM_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_CCM_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "CCM");
+					_print_parity(bp, CCM_REG_CCM_PRTY_STS);
+				}
 				break;
 			}
 
@@ -4376,8 +4470,8 @@ static int bnx2x_check_blocks_with_parity1(u32 sig, int par_num,
 	return par_num;
 }
 
-static int bnx2x_check_blocks_with_parity2(u32 sig, int par_num,
-					   bool print)
+static int bnx2x_check_blocks_with_parity2(struct bnx2x *bp, u32 sig,
+					    int par_num, bool print)
 {
 	int i = 0;
 	u32 cur_bit = 0;
@@ -4386,12 +4480,23 @@ static int bnx2x_check_blocks_with_parity2(u32 sig, int par_num,
 		if (sig & cur_bit) {
 			switch (cur_bit) {
 			case AEU_INPUTS_ATTN_BITS_CSEMI_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "CSEMI");
+					_print_parity(bp,
+						      CSEM_REG_CSEM_PRTY_STS_0);
+					_print_parity(bp,
+						      CSEM_REG_CSEM_PRTY_STS_1);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_PXP_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "PXP");
+					_print_parity(bp, PXP_REG_PXP_PRTY_STS);
+					_print_parity(bp,
+						      PXP2_REG_PXP2_PRTY_STS_0);
+					_print_parity(bp,
+						      PXP2_REG_PXP2_PRTY_STS_1);
+				}
 				break;
 			case AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR:
 				if (print)
@@ -4399,24 +4504,42 @@ static int bnx2x_check_blocks_with_parity2(u32 sig, int par_num,
 					"PXPPCICLOCKCLIENT");
 				break;
 			case AEU_INPUTS_ATTN_BITS_CFC_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "CFC");
+					_print_parity(bp,
+						      CFC_REG_CFC_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_CDU_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "CDU");
+					_print_parity(bp, CDU_REG_CDU_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_DMAE_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "DMAE");
+					_print_parity(bp,
+						      DMAE_REG_DMAE_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "IGU");
+					if (CHIP_IS_E1x(bp))
+						_print_parity(bp,
+							HC_REG_HC_PRTY_STS);
+					else
+						_print_parity(bp,
+							IGU_REG_IGU_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "MISC");
+					_print_parity(bp,
+						      MISC_REG_MISC_PRTY_STS);
+				}
 				break;
 			}
 
@@ -4470,8 +4593,8 @@ static int bnx2x_check_blocks_with_parity3(u32 sig, int par_num,
 	return par_num;
 }
 
-static int bnx2x_check_blocks_with_parity4(u32 sig, int par_num,
-					   bool print)
+static int bnx2x_check_blocks_with_parity4(struct bnx2x *bp, u32 sig,
+					    int par_num, bool print)
 {
 	int i = 0;
 	u32 cur_bit = 0;
@@ -4480,12 +4603,18 @@ static int bnx2x_check_blocks_with_parity4(u32 sig, int par_num,
 		if (sig & cur_bit) {
 			switch (cur_bit) {
 			case AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "PGLUE_B");
+					_print_parity(bp,
+						PGLUE_B_REG_PGLUE_B_PRTY_STS);
+				}
 				break;
 			case AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR:
-				if (print)
+				if (print) {
 					_print_next_block(par_num++, "ATC");
+					_print_parity(bp,
+						      ATC_REG_ATC_PRTY_STS);
+				}
 				break;
 			}
 
@@ -4516,15 +4645,15 @@ static bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print,
 		if (print)
 			netdev_err(bp->dev,
 				   "Parity errors detected in blocks: ");
-		par_num = bnx2x_check_blocks_with_parity0(
+		par_num = bnx2x_check_blocks_with_parity0(bp,
 			sig[0] & HW_PRTY_ASSERT_SET_0, par_num, print);
-		par_num = bnx2x_check_blocks_with_parity1(
+		par_num = bnx2x_check_blocks_with_parity1(bp,
 			sig[1] & HW_PRTY_ASSERT_SET_1, par_num, global, print);
-		par_num = bnx2x_check_blocks_with_parity2(
+		par_num = bnx2x_check_blocks_with_parity2(bp,
 			sig[2] & HW_PRTY_ASSERT_SET_2, par_num, print);
 		par_num = bnx2x_check_blocks_with_parity3(
 			sig[3] & HW_PRTY_ASSERT_SET_3, par_num, global, print);
-		par_num = bnx2x_check_blocks_with_parity4(
+		par_num = bnx2x_check_blocks_with_parity4(bp,
 			sig[4] & HW_PRTY_ASSERT_SET_4, par_num, print);
 
 		if (print)
@@ -7437,7 +7566,7 @@ static int bnx2x_init_hw_func(struct bnx2x *bp)
 	} else {
 		/* Set NIC mode */
 		REG_WR(bp, PRS_REG_NIC_MODE, 1);
-		DP(NETIF_MSG_IFUP, "NIC MODE configrued\n");
+		DP(NETIF_MSG_IFUP, "NIC MODE configured\n");
 	}
 
 	if (!CHIP_IS_E1x(bp)) {
@@ -8609,7 +8738,7 @@ static int bnx2x_func_wait_started(struct bnx2x *bp)
 		struct bnx2x_func_state_params func_params = {NULL};
 
 		DP(NETIF_MSG_IFDOWN,
-		   "Hmmm... unexpected function state! Forcing STARTED-->TX_ST0PPED-->STARTED\n");
+		   "Hmmm... Unexpected function state! Forcing STARTED-->TX_ST0PPED-->STARTED\n");
 
 		func_params.f_obj = &bp->func_obj;
 		__set_bit(RAMROD_DRV_CLR_ONLY,
@@ -9426,14 +9555,12 @@ static void bnx2x_sp_rtnl_task(struct work_struct *work)
 		return;
 	}
 
-	/* if stop on error is defined no recovery flows should be executed */
+	if (unlikely(bp->recovery_state != BNX2X_RECOVERY_DONE)) {
 #ifdef BNX2X_STOP_ON_ERROR
-	BNX2X_ERR("recovery flow called but STOP_ON_ERROR defined so reset not done to allow debug dump,\n"
-		  "you will need to reboot when done\n");
-	goto sp_rtnl_not_reset;
+		BNX2X_ERR("recovery flow called but STOP_ON_ERROR defined so reset not done to allow debug dump,\n"
+			  "you will need to reboot when done\n");
+		goto sp_rtnl_not_reset;
 #endif
-
-	if (unlikely(bp->recovery_state != BNX2X_RECOVERY_DONE)) {
 		/*
 		 * Clear all pending SP commands as we are going to reset the
 		 * function anyway.
@@ -9448,6 +9575,12 @@ static void bnx2x_sp_rtnl_task(struct work_struct *work)
 	}
 
 	if (test_and_clear_bit(BNX2X_SP_RTNL_TX_TIMEOUT, &bp->sp_rtnl_state)) {
+#ifdef BNX2X_STOP_ON_ERROR
+		BNX2X_ERR("recovery flow called but STOP_ON_ERROR defined so reset not done to allow debug dump,\n"
+			  "you will need to reboot when done\n");
+		goto sp_rtnl_not_reset;
+#endif
+
 		/*
 		 * Clear all pending SP commands as we are going to reset the
 		 * function anyway.
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
index d22bc40..8e627b8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
@@ -35,6 +35,8 @@
 #define ATC_REG_ATC_INT_STS_CLR					 0x1101c0
 /* [RW 5] Parity mask register #0 read/write */
 #define ATC_REG_ATC_PRTY_MASK					 0x1101d8
+/* [R 5] Parity register #0 read */
+#define ATC_REG_ATC_PRTY_STS					 0x1101cc
 /* [RC 5] Parity register #0 read clear */
 #define ATC_REG_ATC_PRTY_STS_CLR				 0x1101d0
 /* [RW 19] Interrupt mask register #0 read/write */
@@ -2750,6 +2752,8 @@
 #define PBF_REG_PBF_INT_STS					 0x1401c8
 /* [RW 20] Parity mask register #0 read/write */
 #define PBF_REG_PBF_PRTY_MASK					 0x1401e4
+/* [R 28] Parity register #0 read */
+#define PBF_REG_PBF_PRTY_STS					 0x1401d8
 /* [RC 20] Parity register #0 read clear */
 #define PBF_REG_PBF_PRTY_STS_CLR				 0x1401dc
 /* [RW 16] The Ethernet type value for L2 tag 0 */
@@ -4517,6 +4521,8 @@
 #define TM_REG_TM_INT_STS					 0x1640f0
 /* [RW 7] Parity mask register #0 read/write */
 #define TM_REG_TM_PRTY_MASK					 0x16410c
+/* [R 7] Parity register #0 read */
+#define TM_REG_TM_PRTY_STS					 0x164100
 /* [RC 7] Parity register #0 read clear */
 #define TM_REG_TM_PRTY_STS_CLR					 0x164104
 /* [RW 8] The event id for aggregated interrupt 0 */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index b2ab288..8a556dd 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -1620,7 +1620,7 @@ next_vf_to_clean:
 	     i++)
 		;
 
-	DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. num of vfs: %d\n", i,
+	DP(BNX2X_MSG_IOV, "next vf to cleanup: %d. Num of vfs: %d\n", i,
 	   BNX2X_NR_VIRTFN(bp));
 
 	if (i < BNX2X_NR_VIRTFN(bp)) {
@@ -3031,7 +3031,7 @@ int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
 
 	/* HW channel is only operational when PF is up */
 	if (bp->state != BNX2X_STATE_OPEN) {
-		BNX2X_ERR("VF num configurtion via sysfs not supported while PF is down");
+		BNX2X_ERR("VF num configuration via sysfs not supported while PF is down\n");
 		return -EINVAL;
 	}
 
@@ -3391,7 +3391,7 @@ enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
 			if (bulletin.crc == bnx2x_crc_vf_bulletin(bp,
 								  &bulletin))
 				break;
-			BNX2X_ERR("bad crc on bulletin board. contained %x computed %x\n",
+			BNX2X_ERR("bad crc on bulletin board. Contained %x computed %x\n",
 				  bulletin.crc,
 				  bnx2x_crc_vf_bulletin(bp, &bulletin));
 		}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 3e7cb83..f08c604 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -496,7 +496,7 @@ enum {
 		else if ((next) == VFOP_VERIFY_PEND)			\
 			BNX2X_ERR("expected pending\n");		\
 		else {							\
-			DP(BNX2X_MSG_IOV, "no ramrod. scheduling\n");	\
+			DP(BNX2X_MSG_IOV, "no ramrod. Scheduling\n");	\
 			atomic_set(&vf->op_in_progress, 1);		\
 			queue_delayed_work(bnx2x_wq, &bp->sp_task, 0);  \
 			return;						\
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index f55fa072..861809d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -333,7 +333,7 @@ int bnx2x_vfpf_release(struct bnx2x *bp)
 		DP(BNX2X_MSG_SP, "vf released\n");
 	} else {
 		/* PF reports error */
-		BNX2X_ERR("PF failed our release request - are we out of sync? response status: %d\n",
+		BNX2X_ERR("PF failed our release request - are we out of sync? Response status: %d\n",
 			  resp->hdr.status);
 		rc = -EAGAIN;
 		goto out;
@@ -844,7 +844,6 @@ static int bnx2x_copy32_vf_dmae(struct bnx2x *bp, u8 from_vf,
 		dmae.dst_addr_hi = vf_addr_hi;
 	}
 	dmae.len = len32;
-	bnx2x_dp_dmae(bp, &dmae, BNX2X_MSG_DMAE);
 
 	/* issue the command and wait for completion */
 	return bnx2x_issue_dmae_with_comp(bp, &dmae);
@@ -1588,8 +1587,9 @@ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
 		 * support them. Or this may be because someone wrote a crappy
 		 * VF driver and is sending garbage over the channel.
 		 */
-		BNX2X_ERR("unknown TLV. type %d length %d. first 20 bytes of mailbox buffer:\n",
-			  mbx->first_tlv.tl.type, mbx->first_tlv.tl.length);
+		BNX2X_ERR("unknown TLV. type %d length %d vf->state was %d. first 20 bytes of mailbox buffer:\n",
+			  mbx->first_tlv.tl.type, mbx->first_tlv.tl.length,
+			  vf->state);
 		for (i = 0; i < 20; i++)
 			DP_CONT(BNX2X_MSG_IOV, "%x ",
 				mbx->msg->req.tlv_buf_size.tlv_buffer[i]);
-- 
cgit v0.10.2


From 639d65b85592cf31eca24f33ff00e309ebbf0d2b Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sun, 2 Jun 2013 00:06:21 +0000
Subject: bnx2x: semi-Semantic changes

This patch includes a few changes that change the driver's flow without truly
changing anything in its functionality - use usleep_range for short sleeps
instead of msleep and initialize Tx consumer during initialization for better
information during errors.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 60ff1aa..658b9fd 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -1954,7 +1954,7 @@ int bnx2x_acquire_hw_lock(struct bnx2x *bp, u32 resource)
 		if (lock_status & resource_bit)
 			return 0;
 
-		msleep(5);
+		usleep_range(5000, 10000);
 	}
 	BNX2X_ERR("Timeout\n");
 	return -EAGAIN;
@@ -3640,7 +3640,7 @@ static int bnx2x_acquire_alr(struct bnx2x *bp)
 		if (val & MCPR_ACCESS_LOCK_LOCK)
 			break;
 
-		msleep(5);
+		usleep_range(5000, 10000);
 	}
 	if (!(val & MCPR_ACCESS_LOCK_LOCK)) {
 		BNX2X_ERR("Cannot acquire MCP access lock register\n");
@@ -6078,6 +6078,8 @@ static void bnx2x_init_tx_ring_one(struct bnx2x_fp_txdata *txdata)
 				    BCM_PAGE_SIZE*(i % NUM_TX_RINGS)));
 	}
 
+	*txdata->tx_cons_sb = cpu_to_le16(0);
+
 	SET_FLAG(txdata->tx_db.data.header.header, DOORBELL_HDR_DB_TYPE, 1);
 	txdata->tx_db.data.zero_fill1 = 0;
 	txdata->tx_db.data.prod = 0;
@@ -6329,7 +6331,7 @@ static int bnx2x_int_mem_test(struct bnx2x *bp)
 		if (val == 0x10)
 			break;
 
-		msleep(10);
+		usleep_range(10000, 20000);
 		count--;
 	}
 	if (val != 0x10) {
@@ -6344,7 +6346,7 @@ static int bnx2x_int_mem_test(struct bnx2x *bp)
 		if (val == 1)
 			break;
 
-		msleep(10);
+		usleep_range(10000, 20000);
 		count--;
 	}
 	if (val != 0x1) {
@@ -6385,7 +6387,7 @@ static int bnx2x_int_mem_test(struct bnx2x *bp)
 		if (val == 0xb0)
 			break;
 
-		msleep(10);
+		usleep_range(10000, 20000);
 		count--;
 	}
 	if (val != 0xb0) {
@@ -8500,7 +8502,7 @@ static void bnx2x_reset_func(struct bnx2x *bp)
 		 * scan to complete
 		 */
 		for (i = 0; i < 200; i++) {
-			msleep(10);
+			usleep_range(10000, 20000);
 			if (!REG_RD(bp, TM_REG_LIN0_SCAN_ON + port*4))
 				break;
 		}
-- 
cgit v0.10.2


From 829a5071ccf040b78bd93286a218580c66833b00 Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sat, 1 Jun 2013 23:02:26 +0000
Subject: bnx2x: fix a power state test

If PCIe supports PM capabilities, bnx2x will always claim eeprom is accessible
as PCI_D0 is zero.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 72b1b59..7c6faeb 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -1390,7 +1390,8 @@ static bool bnx2x_is_nvm_accessible(struct bnx2x *bp)
 		rc = pci_read_config_word(bp->pdev,
 					  bp->pm_cap + PCI_PM_CTRL, &pm);
 
-	if ((rc && !netif_running(dev)) || (!rc && ((pm & PCI_D0) != PCI_D0)))
+	if ((rc && !netif_running(dev)) ||
+	    (!rc && ((pm & PCI_PM_CTRL_STATE_MASK) != PCI_D0)))
 		return false;
 
 	return true;
-- 
cgit v0.10.2


From 387aa65a89434abe3128d36d1a6fc3842c94905d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
Date: Mon, 27 May 2013 20:46:31 +0000
Subject: ipv4: properly refresh rtable entries on pmtu/redirect events
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This reverts commit 05ab86c5 (xfrm4: Invalidate all ipv4 routes on
IPsec pmtu events). Flushing all cached entries is not needed.

Instead, invalidate only the related next hop dsts to recheck for
the added next hop exception where needed. This also fixes a subtle
race due to bumping generation id's before updating the pmtu.

Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 2e7f194..7179026 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -419,12 +419,9 @@ static void ah4_err(struct sk_buff *skb, u32 info)
 	if (!x)
 		return;
 
-	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) {
-		atomic_inc(&flow_cache_genid);
-		rt_genid_bump(net);
-
+	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
 		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_AH, 0);
-	} else
+	else
 		ipv4_redirect(skb, net, 0, 0, IPPROTO_AH, 0);
 	xfrm_state_put(x);
 }
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 4cfe34d..ab3d814 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -502,12 +502,9 @@ static void esp4_err(struct sk_buff *skb, u32 info)
 	if (!x)
 		return;
 
-	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) {
-		atomic_inc(&flow_cache_genid);
-		rt_genid_bump(net);
-
+	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
 		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_ESP, 0);
-	} else
+	else
 		ipv4_redirect(skb, net, 0, 0, IPPROTO_ESP, 0);
 	xfrm_state_put(x);
 }
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 59cb8c7..826be4c 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -47,12 +47,9 @@ static void ipcomp4_err(struct sk_buff *skb, u32 info)
 	if (!x)
 		return;
 
-	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH) {
-		atomic_inc(&flow_cache_genid);
-		rt_genid_bump(net);
-
+	if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
 		ipv4_update_pmtu(skb, net, info, 0, 0, IPPROTO_COMP, 0);
-	} else
+	else
 		ipv4_redirect(skb, net, 0, 0, IPPROTO_COMP, 0);
 	xfrm_state_put(x);
 }
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 550781a..561a378 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -594,11 +594,25 @@ static inline u32 fnhe_hashfun(__be32 daddr)
 	return hval & (FNHE_HASH_SIZE - 1);
 }
 
+static void fill_route_from_fnhe(struct rtable *rt, struct fib_nh_exception *fnhe)
+{
+	rt->rt_pmtu = fnhe->fnhe_pmtu;
+	rt->dst.expires = fnhe->fnhe_expires;
+
+	if (fnhe->fnhe_gw) {
+		rt->rt_flags |= RTCF_REDIRECTED;
+		rt->rt_gateway = fnhe->fnhe_gw;
+		rt->rt_uses_gateway = 1;
+	}
+}
+
 static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
 				  u32 pmtu, unsigned long expires)
 {
 	struct fnhe_hash_bucket *hash;
 	struct fib_nh_exception *fnhe;
+	struct rtable *rt;
+	unsigned int i;
 	int depth;
 	u32 hval = fnhe_hashfun(daddr);
 
@@ -627,8 +641,12 @@ static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
 			fnhe->fnhe_gw = gw;
 		if (pmtu) {
 			fnhe->fnhe_pmtu = pmtu;
-			fnhe->fnhe_expires = expires;
+			fnhe->fnhe_expires = max(1UL, expires);
 		}
+		/* Update all cached dsts too */
+		rt = rcu_dereference(fnhe->fnhe_rth);
+		if (rt)
+			fill_route_from_fnhe(rt, fnhe);
 	} else {
 		if (depth > FNHE_RECLAIM_DEPTH)
 			fnhe = fnhe_oldest(hash);
@@ -644,6 +662,18 @@ static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
 		fnhe->fnhe_gw = gw;
 		fnhe->fnhe_pmtu = pmtu;
 		fnhe->fnhe_expires = expires;
+
+		/* Exception created; mark the cached routes for the nexthop
+		 * stale, so anyone caching it rechecks if this exception
+		 * applies to them.
+		 */
+		for_each_possible_cpu(i) {
+			struct rtable __rcu **prt;
+			prt = per_cpu_ptr(nh->nh_pcpu_rth_output, i);
+			rt = rcu_dereference(*prt);
+			if (rt)
+				rt->dst.obsolete = DST_OBSOLETE_KILL;
+		}
 	}
 
 	fnhe->fnhe_stamp = jiffies;
@@ -917,13 +947,6 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
 	if (mtu < ip_rt_min_pmtu)
 		mtu = ip_rt_min_pmtu;
 
-	if (!rt->rt_pmtu) {
-		dst->obsolete = DST_OBSOLETE_KILL;
-	} else {
-		rt->rt_pmtu = mtu;
-		dst->expires = max(1UL, jiffies + ip_rt_mtu_expires);
-	}
-
 	rcu_read_lock();
 	if (fib_lookup(dev_net(dst->dev), fl4, &res) == 0) {
 		struct fib_nh *nh = &FIB_RES_NH(res);
@@ -1063,11 +1086,11 @@ static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie)
 	 * DST_OBSOLETE_FORCE_CHK which forces validation calls down
 	 * into this function always.
 	 *
-	 * When a PMTU/redirect information update invalidates a
-	 * route, this is indicated by setting obsolete to
-	 * DST_OBSOLETE_KILL.
+	 * When a PMTU/redirect information update invalidates a route,
+	 * this is indicated by setting obsolete to DST_OBSOLETE_KILL or
+	 * DST_OBSOLETE_DEAD by dst_free().
 	 */
-	if (dst->obsolete == DST_OBSOLETE_KILL || rt_is_expired(rt))
+	if (dst->obsolete != DST_OBSOLETE_FORCE_CHK || rt_is_expired(rt))
 		return NULL;
 	return dst;
 }
@@ -1215,20 +1238,8 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe,
 			fnhe->fnhe_pmtu = 0;
 			fnhe->fnhe_expires = 0;
 		}
-		if (fnhe->fnhe_pmtu) {
-			unsigned long expires = fnhe->fnhe_expires;
-			unsigned long diff = expires - jiffies;
-
-			if (time_before(jiffies, expires)) {
-				rt->rt_pmtu = fnhe->fnhe_pmtu;
-				dst_set_expires(&rt->dst, diff);
-			}
-		}
-		if (fnhe->fnhe_gw) {
-			rt->rt_flags |= RTCF_REDIRECTED;
-			rt->rt_gateway = fnhe->fnhe_gw;
-			rt->rt_uses_gateway = 1;
-		} else if (!rt->rt_gateway)
+		fill_route_from_fnhe(rt, fnhe);
+		if (!rt->rt_gateway)
 			rt->rt_gateway = daddr;
 
 		rcu_assign_pointer(fnhe->fnhe_rth, rt);
-- 
cgit v0.10.2


From f016229e303c294afac721de4cd4427e634950ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
Date: Mon, 27 May 2013 20:46:32 +0000
Subject: ipv4: rate limit updating of next hop exceptions with same pmtu
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The tunnel devices call update_pmtu for each packet sent, this causes
contention on the fnhe_lock. Ignore the pmtu update if pmtu is not
actually changed, and there is still plenty of time before the entry
expires.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 561a378..a4082be 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -947,6 +947,10 @@ static void __ip_rt_update_pmtu(struct rtable *rt, struct flowi4 *fl4, u32 mtu)
 	if (mtu < ip_rt_min_pmtu)
 		mtu = ip_rt_min_pmtu;
 
+	if (rt->rt_pmtu == mtu &&
+	    time_before(jiffies, dst->expires - ip_rt_mtu_expires / 2))
+		return;
+
 	rcu_read_lock();
 	if (fib_lookup(dev_net(dst->dev), fl4, &res) == 0) {
 		struct fib_nh *nh = &FIB_RES_NH(res);
-- 
cgit v0.10.2


From 5aad1de5ea2c260b4cd2f70b70e146d55dbbc528 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
Date: Mon, 27 May 2013 20:46:33 +0000
Subject: ipv4: use separate genid for next hop exceptions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 13d82bf5 (ipv4: Fix flushing of cached routing informations)
added the support to flush learned pmtu information.

However, using rt_genid is quite heavy as it is bumped on route
add/change and multicast events amongst other places. These can
happen quite often, especially if using dynamic routing protocols.

While this is ok with routes (as they are just recreated locally),
the pmtu information is learned from remote systems and the icmp
notification can come with long delays. It is worthy to have separate
genid to avoid excessive pmtu resets.

Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index e49db91..44424e9 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -51,6 +51,7 @@ struct rtable;
 
 struct fib_nh_exception {
 	struct fib_nh_exception __rcu	*fnhe_next;
+	int				fnhe_genid;
 	__be32				fnhe_daddr;
 	u32				fnhe_pmtu;
 	__be32				fnhe_gw;
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index b176978..495bc57 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -118,6 +118,7 @@ struct net {
 	struct netns_ipvs	*ipvs;
 	struct sock		*diag_nlsk;
 	atomic_t		rt_genid;
+	atomic_t		fnhe_genid;
 };
 
 /*
@@ -340,4 +341,14 @@ static inline void rt_genid_bump(struct net *net)
 	atomic_inc(&net->rt_genid);
 }
 
+static inline int fnhe_genid(struct net *net)
+{
+	return atomic_read(&net->fnhe_genid);
+}
+
+static inline void fnhe_genid_bump(struct net *net)
+{
+	atomic_inc(&net->fnhe_genid);
+}
+
 #endif /* __NET_NET_NAMESPACE_H */
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index a4082be..403e283 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -658,6 +658,7 @@ static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
 			fnhe->fnhe_next = hash->chain;
 			rcu_assign_pointer(hash->chain, fnhe);
 		}
+		fnhe->fnhe_genid = fnhe_genid(dev_net(nh->nh_dev));
 		fnhe->fnhe_daddr = daddr;
 		fnhe->fnhe_gw = gw;
 		fnhe->fnhe_pmtu = pmtu;
@@ -1236,8 +1237,11 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe,
 	spin_lock_bh(&fnhe_lock);
 
 	if (daddr == fnhe->fnhe_daddr) {
+		int genid = fnhe_genid(dev_net(rt->dst.dev));
 		struct rtable *orig = rcu_dereference(fnhe->fnhe_rth);
-		if (orig && rt_is_expired(orig)) {
+
+		if (fnhe->fnhe_genid != genid) {
+			fnhe->fnhe_genid = genid;
 			fnhe->fnhe_gw = 0;
 			fnhe->fnhe_pmtu = 0;
 			fnhe->fnhe_expires = 0;
@@ -2443,8 +2447,11 @@ static int ipv4_sysctl_rtcache_flush(ctl_table *__ctl, int write,
 					void __user *buffer,
 					size_t *lenp, loff_t *ppos)
 {
+	struct net *net = (struct net *)__ctl->extra1;
+
 	if (write) {
-		rt_cache_flush((struct net *)__ctl->extra1);
+		rt_cache_flush(net);
+		fnhe_genid_bump(net);
 		return 0;
 	}
 
@@ -2619,6 +2626,7 @@ static __net_initdata struct pernet_operations sysctl_route_ops = {
 static __net_init int rt_genid_init(struct net *net)
 {
 	atomic_set(&net->rt_genid, 0);
+	atomic_set(&net->fnhe_genid, 0);
 	get_random_bytes(&net->ipv4.dev_addr_genid,
 			 sizeof(net->ipv4.dev_addr_genid));
 	return 0;
-- 
cgit v0.10.2


From bd118b6e9509a19bfb82925152d9ae8fa398d567 Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Wed, 29 May 2013 04:13:54 +0000
Subject: ibm-ethernet: delete stale MCA and duplicate PSERIES dependency

MCA support has been removed but this dependency escaped removal.
Also, there is a duplicate PPC_PSERIES dependency that appeared
when the ethernet drivers were separated into vendor/model
specific directories, so we remove that here as well.

Reported-by: Robert de Rooy <robert.de.rooy@gmail.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ibm/Kconfig b/drivers/net/ethernet/ibm/Kconfig
index 6529d31..563a1ac 100644
--- a/drivers/net/ethernet/ibm/Kconfig
+++ b/drivers/net/ethernet/ibm/Kconfig
@@ -5,8 +5,7 @@
 config NET_VENDOR_IBM
 	bool "IBM devices"
 	default y
-	depends on MCA || PPC_PSERIES || PPC_PSERIES || PPC_DCR || \
-		   (IBMEBUS && SPARSEMEM)
+	depends on PPC_PSERIES || PPC_DCR || (IBMEBUS && SPARSEMEM)
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
-- 
cgit v0.10.2


From 08578d8d4eb76b7afe314fa03abe167761462fe4 Mon Sep 17 00:00:00 2001
From: Rami Rosen <ramirose@gmail.com>
Date: Mon, 3 Jun 2013 00:23:25 +0000
Subject: ] icmp: fix icmp_unreach() comment.

ICMP_PARAMETERPROB is handled by icmp_unreach(); This patch adds
ICMP_PARAMETERPROB to the list of ICMP message types handled by icmp_unreach().

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 5d0d379..2864ca3 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -658,7 +658,8 @@ static void icmp_socket_deliver(struct sk_buff *skb, u32 info)
 }
 
 /*
- *	Handle ICMP_DEST_UNREACH, ICMP_TIME_EXCEED, and ICMP_QUENCH.
+ *	Handle ICMP_DEST_UNREACH, ICMP_TIME_EXCEED, ICMP_QUENCH, and
+ *	ICMP_PARAMETERPROB.
  */
 
 static void icmp_unreach(struct sk_buff *skb)
-- 
cgit v0.10.2


From 9a99d4a50cb8ce516adf0f2436138d4c8e6e4535 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Sun, 2 Jun 2013 15:00:52 +0000
Subject: icmp: avoid allocating large struct on stack

struct icmp_bxm is a large struct, reduce stack usage
by allocating it on heap.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 2864ca3..5f7d11a 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -482,7 +482,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 {
 	struct iphdr *iph;
 	int room;
-	struct icmp_bxm icmp_param;
+	struct icmp_bxm *icmp_param;
 	struct rtable *rt = skb_rtable(skb_in);
 	struct ipcm_cookie ipc;
 	struct flowi4 fl4;
@@ -558,9 +558,13 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 		}
 	}
 
+	icmp_param = kmalloc(sizeof(*icmp_param), GFP_ATOMIC);
+	if (!icmp_param)
+		return;
+
 	sk = icmp_xmit_lock(net);
 	if (sk == NULL)
-		return;
+		goto out_free;
 
 	/*
 	 *	Construct source address and options.
@@ -586,7 +590,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 					   IPTOS_PREC_INTERNETCONTROL) :
 					  iph->tos;
 
-	if (ip_options_echo(&icmp_param.replyopts.opt.opt, skb_in))
+	if (ip_options_echo(&icmp_param->replyopts.opt.opt, skb_in))
 		goto out_unlock;
 
 
@@ -594,19 +598,19 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	 *	Prepare data for ICMP header.
 	 */
 
-	icmp_param.data.icmph.type	 = type;
-	icmp_param.data.icmph.code	 = code;
-	icmp_param.data.icmph.un.gateway = info;
-	icmp_param.data.icmph.checksum	 = 0;
-	icmp_param.skb	  = skb_in;
-	icmp_param.offset = skb_network_offset(skb_in);
+	icmp_param->data.icmph.type	 = type;
+	icmp_param->data.icmph.code	 = code;
+	icmp_param->data.icmph.un.gateway = info;
+	icmp_param->data.icmph.checksum	 = 0;
+	icmp_param->skb	  = skb_in;
+	icmp_param->offset = skb_network_offset(skb_in);
 	inet_sk(sk)->tos = tos;
 	ipc.addr = iph->saddr;
-	ipc.opt = &icmp_param.replyopts.opt;
+	ipc.opt = &icmp_param->replyopts.opt;
 	ipc.tx_flags = 0;
 
 	rt = icmp_route_lookup(net, &fl4, skb_in, iph, saddr, tos,
-			       type, code, &icmp_param);
+			       type, code, icmp_param);
 	if (IS_ERR(rt))
 		goto out_unlock;
 
@@ -618,19 +622,21 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	room = dst_mtu(&rt->dst);
 	if (room > 576)
 		room = 576;
-	room -= sizeof(struct iphdr) + icmp_param.replyopts.opt.opt.optlen;
+	room -= sizeof(struct iphdr) + icmp_param->replyopts.opt.opt.optlen;
 	room -= sizeof(struct icmphdr);
 
-	icmp_param.data_len = skb_in->len - icmp_param.offset;
-	if (icmp_param.data_len > room)
-		icmp_param.data_len = room;
-	icmp_param.head_len = sizeof(struct icmphdr);
+	icmp_param->data_len = skb_in->len - icmp_param->offset;
+	if (icmp_param->data_len > room)
+		icmp_param->data_len = room;
+	icmp_param->head_len = sizeof(struct icmphdr);
 
-	icmp_push_reply(&icmp_param, &fl4, &ipc, &rt);
+	icmp_push_reply(icmp_param, &fl4, &ipc, &rt);
 ende:
 	ip_rt_put(rt);
 out_unlock:
 	icmp_xmit_unlock(sk);
+out_free:
+	kfree(icmp_param);
 out:;
 }
 EXPORT_SYMBOL(icmp_send);
-- 
cgit v0.10.2


From 0672f0ab57dc71958542ac41e5a7ccb6a382a8f3 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 31 May 2013 21:18:55 +0000
Subject: net: can: replace strict_strtoul() with kstrtoul()

The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index 5566566..ce8421a 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -1220,7 +1220,7 @@ static ssize_t at91_sysfs_set_mb0_id(struct device *dev,
 		goto out;
 	}
 
-	err = strict_strtoul(buf, 0, &can_id);
+	err = kstrtoul(buf, 0, &can_id);
 	if (err) {
 		ret = err;
 		goto out;
diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c
index c4bc1d2..36bd6fa 100644
--- a/drivers/net/can/janz-ican3.c
+++ b/drivers/net/can/janz-ican3.c
@@ -1734,7 +1734,7 @@ static ssize_t ican3_sysfs_set_term(struct device *dev,
 	unsigned long enable;
 	int ret;
 
-	if (strict_strtoul(buf, 0, &enable))
+	if (kstrtoul(buf, 0, &enable))
 		return -EINVAL;
 
 	ret = ican3_set_termination(mod, enable);
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index 06b7e09..874188b 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -161,7 +161,7 @@ static void slc_bump(struct slcan *sl)
 
 	sl->rbuff[dlc_pos] = 0; /* terminate can_id string */
 
-	if (strict_strtoul(sl->rbuff+1, 16, &ultmp))
+	if (kstrtoul(sl->rbuff+1, 16, &ultmp))
 		return;
 
 	cf.can_id = ultmp;
diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c
index 3a2b456..65eef1e 100644
--- a/drivers/net/can/softing/softing_main.c
+++ b/drivers/net/can/softing/softing_main.c
@@ -594,7 +594,7 @@ static ssize_t store_output(struct device *dev, struct device_attribute *attr,
 	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(buf, 0, &val);
+	ret = kstrtoul(buf, 0, &val);
 	if (ret < 0)
 		return ret;
 	val &= 0xFF;
-- 
cgit v0.10.2


From 67d6bfa6863c8535445e1dcdb3385e3a05cd32a7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 31 May 2013 21:21:35 +0000
Subject: net: ethernet: replace strict_strtoul() with kstrtoul()

The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 20c7b3c..c401b0b 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -2774,7 +2774,7 @@ netxen_store_bridged_mode(struct device *dev,
 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
 		goto err_out;
 
-	if (strict_strtoul(buf, 2, &new))
+	if (kstrtoul(buf, 2, &new))
 		goto err_out;
 
 	if (!netxen_config_bridged_mode(adapter, !!new))
@@ -2813,7 +2813,7 @@ netxen_store_diag_mode(struct device *dev,
 	struct netxen_adapter *adapter = dev_get_drvdata(dev);
 	unsigned long new;
 
-	if (strict_strtoul(buf, 2, &new))
+	if (kstrtoul(buf, 2, &new))
 		return -EINVAL;
 
 	if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index 025a719..7ec030a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -47,7 +47,7 @@ static ssize_t qlcnic_store_bridged_mode(struct device *dev,
 	if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
 		goto err_out;
 
-	if (strict_strtoul(buf, 2, &new))
+	if (kstrtoul(buf, 2, &new))
 		goto err_out;
 
 	if (!qlcnic_config_bridged_mode(adapter, !!new))
@@ -77,7 +77,7 @@ static ssize_t qlcnic_store_diag_mode(struct device *dev,
 	struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
 	unsigned long new;
 
-	if (strict_strtoul(buf, 2, &new))
+	if (kstrtoul(buf, 2, &new))
 		return -EINVAL;
 
 	if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
-- 
cgit v0.10.2


From 27d7f47756f40fb1bc3159e09217f740f5c5b5b1 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 31 May 2013 21:24:06 +0000
Subject: net: wireless: replace strict_strtoul() with kstrtoul()

The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index b37eb8d..51cc0fa 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -69,7 +69,7 @@ static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &mask))
+	if (kstrtoul(buf, 0, &mask))
 		return -EINVAL;
 
 	common->debug_mask = mask;
@@ -114,7 +114,7 @@ static ssize_t write_file_tx_chainmask(struct file *file, const char __user *use
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &mask))
+	if (kstrtoul(buf, 0, &mask))
 		return -EINVAL;
 
 	ah->txchainmask = mask;
@@ -157,7 +157,7 @@ static ssize_t write_file_rx_chainmask(struct file *file, const char __user *use
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &mask))
+	if (kstrtoul(buf, 0, &mask))
 		return -EINVAL;
 
 	ah->rxchainmask = mask;
@@ -200,7 +200,7 @@ static ssize_t write_file_disable_ani(struct file *file,
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &disable_ani))
+	if (kstrtoul(buf, 0, &disable_ani))
 		return -EINVAL;
 
 	common->disable_ani = !!disable_ani;
@@ -253,7 +253,7 @@ static ssize_t write_file_ant_diversity(struct file *file,
 		goto exit;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &antenna_diversity))
+	if (kstrtoul(buf, 0, &antenna_diversity))
 		return -EINVAL;
 
 	common->antenna_diversity = !!antenna_diversity;
@@ -1278,7 +1278,7 @@ static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &regidx))
+	if (kstrtoul(buf, 0, &regidx))
 		return -EINVAL;
 
 	sc->debug.regidx = regidx;
@@ -1323,7 +1323,7 @@ static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &regval))
+	if (kstrtoul(buf, 0, &regval))
 		return -EINVAL;
 
 	ath9k_ps_wakeup(sc);
diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c
index b7611b7..3c6e413 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_debug.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c
@@ -96,7 +96,7 @@ static ssize_t write_file_dfs(struct file *file, const char __user *user_buf,
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &val))
+	if (kstrtoul(buf, 0, &val))
 		return -EINVAL;
 
 	if (val == DFS_STATS_RESET_MAGIC)
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
index 87110de5..d08ef24 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
@@ -471,7 +471,7 @@ static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &mask))
+	if (kstrtoul(buf, 0, &mask))
 		return -EINVAL;
 
 	common->debug_mask = mask;
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index b37a582..dce5e8f 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -3119,7 +3119,7 @@ il3945_store_debug_level(struct device *d, struct device_attribute *attr,
 	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(buf, 0, &val);
+	ret = kstrtoul(buf, 0, &val);
 	if (ret)
 		IL_INFO("%s is not in hex or decimal form.\n", buf);
 	else
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 9a95045..3c4899b 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -4567,7 +4567,7 @@ il4965_store_debug_level(struct device *d, struct device_attribute *attr,
 	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(buf, 0, &val);
+	ret = kstrtoul(buf, 0, &val);
 	if (ret)
 		IL_ERR("%s is not in hex or decimal form.\n", buf);
 	else
@@ -4614,7 +4614,7 @@ il4965_store_tx_power(struct device *d, struct device_attribute *attr,
 	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtoul(buf, 10, &val);
 	if (ret)
 		IL_INFO("%s is not in decimal form.\n", buf);
 	else {
diff --git a/drivers/net/wireless/libertas/mesh.c b/drivers/net/wireless/libertas/mesh.c
index 3e81264..efae07e 100644
--- a/drivers/net/wireless/libertas/mesh.c
+++ b/drivers/net/wireless/libertas/mesh.c
@@ -240,7 +240,7 @@ static ssize_t lbs_prb_rsp_limit_set(struct device *dev,
 	memset(&mesh_access, 0, sizeof(mesh_access));
 	mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET);
 
-	if (!strict_strtoul(buf, 10, &retry_limit))
+	if (!kstrtoul(buf, 10, &retry_limit))
 		return -ENOTSUPP;
 	if (retry_limit > 15)
 		return -ENOTSUPP;
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index af59dd5..8053f77 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -1817,7 +1817,7 @@ static ssize_t rtl_store_debug_level(struct device *d,
 	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(buf, 0, &val);
+	ret = kstrtoul(buf, 0, &val);
 	if (ret) {
 		printk(KERN_DEBUG "%s is not in hex or decimal form.\n", buf);
 	} else {
-- 
cgit v0.10.2


From 6b1ea4b299ca19a7a2713b38366ac2829fe55883 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 31 May 2013 21:35:23 +0000
Subject: ssb: sprom: replace strict_strtoul() with kstrtoul()

The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/ssb/sprom.c b/drivers/ssb/sprom.c
index a3b2364..e753fbe 100644
--- a/drivers/ssb/sprom.c
+++ b/drivers/ssb/sprom.c
@@ -54,7 +54,7 @@ static int hex2sprom(u16 *sprom, const char *dump, size_t len,
 	while (cnt < sprom_size_words) {
 		memcpy(tmp, dump, 4);
 		dump += 4;
-		err = strict_strtoul(tmp, 16, &parsed);
+		err = kstrtoul(tmp, 16, &parsed);
 		if (err)
 			return err;
 		sprom[cnt++] = swab16((u16)parsed);
-- 
cgit v0.10.2


From 5865fc1b6a99bc7dcf245770c2735577b8596b6e Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Sun, 2 Jun 2013 21:36:21 +0000
Subject: tg3: remove redundant pm init code

Pci_enable_device() will set device pm state to D0, so
it's no need to do it again in tg3_init_one().

Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index d7755d8..3cfae0e 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -17195,7 +17195,7 @@ static int tg3_init_one(struct pci_dev *pdev,
 {
 	struct net_device *dev;
 	struct tg3 *tp;
-	int i, err, pm_cap;
+	int i, err;
 	u32 sndmbx, rcvmbx, intmbx;
 	char str[40];
 	u64 dma_mask, persist_dma_mask;
@@ -17217,25 +17217,10 @@ static int tg3_init_one(struct pci_dev *pdev,
 
 	pci_set_master(pdev);
 
-	/* Find power-management capability. */
-	pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
-	if (pm_cap == 0) {
-		dev_err(&pdev->dev,
-			"Cannot find Power Management capability, aborting\n");
-		err = -EIO;
-		goto err_out_free_res;
-	}
-
-	err = pci_set_power_state(pdev, PCI_D0);
-	if (err) {
-		dev_err(&pdev->dev, "Transition to D0 failed, aborting\n");
-		goto err_out_free_res;
-	}
-
 	dev = alloc_etherdev_mq(sizeof(*tp), TG3_IRQ_MAX_VECS);
 	if (!dev) {
 		err = -ENOMEM;
-		goto err_out_power_down;
+		goto err_out_free_res;
 	}
 
 	SET_NETDEV_DEV(dev, &pdev->dev);
@@ -17243,7 +17228,7 @@ static int tg3_init_one(struct pci_dev *pdev,
 	tp = netdev_priv(dev);
 	tp->pdev = pdev;
 	tp->dev = dev;
-	tp->pm_cap = pm_cap;
+	tp->pm_cap = pdev->pm_cap;
 	tp->rx_mode = TG3_DEF_RX_MODE;
 	tp->tx_mode = TG3_DEF_TX_MODE;
 	tp->irq_sync = 1;
@@ -17581,9 +17566,6 @@ err_out_iounmap:
 err_out_free_dev:
 	free_netdev(dev);
 
-err_out_power_down:
-	pci_set_power_state(pdev, PCI_D3hot);
-
 err_out_free_res:
 	pci_release_regions(pdev);
 
-- 
cgit v0.10.2


From 4d7f7635f75da2924916946cb7ac49c5603b44c7 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 20 May 2013 10:06:18 -0300
Subject: can: flexcan: Let device core handle pinctrl

Since commit ab78029 (drivers/pinctrl: grab default handles from device core)
we can rely on device core for handling pinctrl, so remove
devm_pinctrl_get_select_default() from the driver.

Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: <linux-can@vger.kernel.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 4a40a18..a93cdb2 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -37,7 +37,6 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
-#include <linux/pinctrl/consumer.h>
 
 #define DRV_NAME			"flexcan"
 
@@ -1004,16 +1003,11 @@ static int flexcan_probe(struct platform_device *pdev)
 	struct flexcan_priv *priv;
 	struct resource *mem;
 	struct clk *clk_ipg = NULL, *clk_per = NULL;
-	struct pinctrl *pinctrl;
 	void __iomem *base;
 	resource_size_t mem_size;
 	int err, irq;
 	u32 clock_freq = 0;
 
-	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
-	if (IS_ERR(pinctrl))
-		return PTR_ERR(pinctrl);
-
 	if (pdev->dev.of_node)
 		of_property_read_u32(pdev->dev.of_node,
 						"clock-frequency", &clock_freq);
-- 
cgit v0.10.2


From 588e7a8e123da07b6ffe87f156e25afc1c3d7cce Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 20 May 2013 15:43:43 -0300
Subject: can: flexcan: Use SIMPLE_DEV_PM_OPS

Using SIMPLE_DEV_PM_OPS can make the code smaller and simpler.

Also change CONFIG_PM to CONFIG_PM_SLEEP.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index a93cdb2..f873b9f 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1131,10 +1131,10 @@ static int flexcan_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int flexcan_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int flexcan_suspend(struct device *device)
 {
-	struct net_device *dev = platform_get_drvdata(pdev);
+	struct net_device *dev = dev_get_drvdata(device);
 	struct flexcan_priv *priv = netdev_priv(dev);
 
 	flexcan_chip_disable(priv);
@@ -1148,9 +1148,9 @@ static int flexcan_suspend(struct platform_device *pdev, pm_message_t state)
 	return 0;
 }
 
-static int flexcan_resume(struct platform_device *pdev)
+static int flexcan_resume(struct device *device)
 {
-	struct net_device *dev = platform_get_drvdata(pdev);
+	struct net_device *dev = dev_get_drvdata(device);
 	struct flexcan_priv *priv = netdev_priv(dev);
 
 	priv->can.state = CAN_STATE_ERROR_ACTIVE;
@@ -1162,21 +1162,19 @@ static int flexcan_resume(struct platform_device *pdev)
 
 	return 0;
 }
-#else
-#define flexcan_suspend NULL
-#define flexcan_resume NULL
-#endif
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(flexcan_pm_ops, flexcan_suspend, flexcan_resume);
 
 static struct platform_driver flexcan_driver = {
 	.driver = {
 		.name = DRV_NAME,
 		.owner = THIS_MODULE,
+		.pm = &flexcan_pm_ops,
 		.of_match_table = flexcan_of_match,
 	},
 	.probe = flexcan_probe,
 	.remove = flexcan_remove,
-	.suspend = flexcan_suspend,
-	.resume = flexcan_resume,
 	.id_table = flexcan_id_table,
 };
 
-- 
cgit v0.10.2


From 4c4726faed6cf0c7545ac6523de4cc66acd0a61d Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Wed, 15 May 2013 09:32:36 +0200
Subject: can: flexcan: remove HAVE_CAN_FLEXCAN Kconfig symbol

This patch removes the Kconfig symbol HAVE_CAN_FLEXCAN from arch/{arm,powerpc}
and allowing compilation unconditionally on all arm and powerpc platforms.

This brings a bigger compile time coverage and removes the following dependency
warning found by Arnd Bergmann:

    warning: (SOC_IMX28 && SOC_IMX25 && SOC_IMX35 && IMX_HAVE_PLATFORM_FLEXCAN &&
        SOC_IMX53 && SOC_IMX6Q) selects HAVE_CAN_FLEXCAN
    which has unmet direct dependencies (NET && CAN && CAN_DEV)

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index ba44328..af8e109 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -111,7 +111,6 @@ config SOC_IMX25
 	select ARCH_MXC_IOMUX_V3
 	select COMMON_CLK
 	select CPU_ARM926T
-	select HAVE_CAN_FLEXCAN if CAN
 	select MXC_AVIC
 
 config SOC_IMX27
@@ -137,7 +136,6 @@ config SOC_IMX35
 	select ARCH_MXC_IOMUX_V3
 	select COMMON_CLK
 	select CPU_V6K
-	select HAVE_CAN_FLEXCAN if CAN
 	select HAVE_EPIT
 	select MXC_AVIC
 	select SMP_ON_UP if SMP
@@ -776,7 +774,6 @@ comment "Device tree only"
 
 config	SOC_IMX53
 	bool "i.MX53 support"
-	select HAVE_CAN_FLEXCAN if CAN
 	select HAVE_IMX_SRC
 	select IMX_HAVE_PLATFORM_IMX2_WDT
 	select PINCTRL
@@ -799,7 +796,6 @@ config SOC_IMX6Q
 	select CPU_V7
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if LOCAL_TIMERS
-	select HAVE_CAN_FLEXCAN if CAN
 	select HAVE_IMX_ANATOP
 	select HAVE_IMX_GPC
 	select HAVE_IMX_MMDC
diff --git a/arch/arm/mach-imx/devices/Kconfig b/arch/arm/mach-imx/devices/Kconfig
index 3dd2b1b..68c74fb 100644
--- a/arch/arm/mach-imx/devices/Kconfig
+++ b/arch/arm/mach-imx/devices/Kconfig
@@ -4,7 +4,6 @@ config IMX_HAVE_PLATFORM_FEC
 
 config IMX_HAVE_PLATFORM_FLEXCAN
 	bool
-	select HAVE_CAN_FLEXCAN if CAN
 
 config IMX_HAVE_PLATFORM_FSL_USB2_UDC
 	bool
diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
index 4dc2fbb..ce6e7d6 100644
--- a/arch/arm/mach-mxs/Kconfig
+++ b/arch/arm/mach-mxs/Kconfig
@@ -11,7 +11,6 @@ config SOC_IMX28
 	select ARM_AMBA
 	select ARM_CPU_SUSPEND if PM
 	select CPU_ARM926T
-	select HAVE_CAN_FLEXCAN if CAN
 	select HAVE_PWM
 	select PINCTRL_IMX28
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c33e3ad..7754c6b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -674,7 +674,6 @@ config SBUS
 
 config FSL_SOC
 	bool
-	select HAVE_CAN_FLEXCAN if NET && CAN
 
 config FSL_PCI
  	bool
diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index e456b70..3c06947 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -102,12 +102,9 @@ config CAN_JANZ_ICAN3
 	  This driver can also be built as a module. If so, the module will be
 	  called janz-ican3.ko.
 
-config HAVE_CAN_FLEXCAN
-	bool
-
 config CAN_FLEXCAN
 	tristate "Support for Freescale FLEXCAN based chips"
-	depends on HAVE_CAN_FLEXCAN
+	depends on ARM || PPC
 	---help---
 	  Say Y here if you want to support for Freescale FlexCAN.
 
-- 
cgit v0.10.2


From 00e4bbc8cd7efac66caa4ce6bcf5f02e944184f6 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 23 May 2013 19:47:58 +0900
Subject: net: can: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Also, unnecessary dev_set_drvdata() is removed, because the driver core
clears the driver data to NULL after device_release or on probe failure.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/bfin_can.c b/drivers/net/can/bfin_can.c
index d4a15e8..a2700d2 100644
--- a/drivers/net/can/bfin_can.c
+++ b/drivers/net/can/bfin_can.c
@@ -580,7 +580,7 @@ static int bfin_can_probe(struct platform_device *pdev)
 	priv->pin_list = pdata;
 	priv->can.clock.freq = get_sclk();
 
-	dev_set_drvdata(&pdev->dev, dev);
+	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	dev->flags |= IFF_ECHO;	/* we support local echo */
@@ -613,7 +613,7 @@ exit:
 
 static int bfin_can_remove(struct platform_device *pdev)
 {
-	struct net_device *dev = dev_get_drvdata(&pdev->dev);
+	struct net_device *dev = platform_get_drvdata(pdev);
 	struct bfin_can_priv *priv = netdev_priv(dev);
 	struct resource *res;
 
@@ -621,8 +621,6 @@ static int bfin_can_remove(struct platform_device *pdev)
 
 	unregister_candev(dev);
 
-	dev_set_drvdata(&pdev->dev, NULL);
-
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	release_mem_region(res->start, resource_size(res));
 
@@ -635,7 +633,7 @@ static int bfin_can_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int bfin_can_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
-	struct net_device *dev = dev_get_drvdata(&pdev->dev);
+	struct net_device *dev = platform_get_drvdata(pdev);
 	struct bfin_can_priv *priv = netdev_priv(dev);
 	struct bfin_can_regs __iomem *reg = priv->membase;
 	int timeout = BFIN_CAN_TIMEOUT;
@@ -658,7 +656,7 @@ static int bfin_can_suspend(struct platform_device *pdev, pm_message_t mesg)
 
 static int bfin_can_resume(struct platform_device *pdev)
 {
-	struct net_device *dev = dev_get_drvdata(&pdev->dev);
+	struct net_device *dev = platform_get_drvdata(pdev);
 	struct bfin_can_priv *priv = netdev_priv(dev);
 	struct bfin_can_regs __iomem *reg = priv->membase;
 
diff --git a/drivers/net/can/cc770/cc770_isa.c b/drivers/net/can/cc770/cc770_isa.c
index 8eaaac8..87a47c0 100644
--- a/drivers/net/can/cc770/cc770_isa.c
+++ b/drivers/net/can/cc770/cc770_isa.c
@@ -265,7 +265,7 @@ static int cc770_isa_probe(struct platform_device *pdev)
 	else
 		priv->clkout = COR_DEFAULT;
 
-	dev_set_drvdata(&pdev->dev, dev);
+	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	err = register_cc770dev(dev);
@@ -293,12 +293,11 @@ static int cc770_isa_probe(struct platform_device *pdev)
 
 static int cc770_isa_remove(struct platform_device *pdev)
 {
-	struct net_device *dev = dev_get_drvdata(&pdev->dev);
+	struct net_device *dev = platform_get_drvdata(pdev);
 	struct cc770_priv *priv = netdev_priv(dev);
 	int idx = pdev->id;
 
 	unregister_cc770dev(dev);
-	dev_set_drvdata(&pdev->dev, NULL);
 
 	if (mem[idx]) {
 		iounmap(priv->reg_base);
diff --git a/drivers/net/can/cc770/cc770_platform.c b/drivers/net/can/cc770/cc770_platform.c
index d0f6bfc..034bdd8 100644
--- a/drivers/net/can/cc770/cc770_platform.c
+++ b/drivers/net/can/cc770/cc770_platform.c
@@ -216,7 +216,7 @@ static int cc770_platform_probe(struct platform_device *pdev)
 		 priv->reg_base, dev->irq, priv->can.clock.freq,
 		 priv->cpu_interface, priv->bus_config, priv->clkout);
 
-	dev_set_drvdata(&pdev->dev, dev);
+	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	err = register_cc770dev(dev);
@@ -240,7 +240,7 @@ exit_release_mem:
 
 static int cc770_platform_remove(struct platform_device *pdev)
 {
-	struct net_device *dev = dev_get_drvdata(&pdev->dev);
+	struct net_device *dev = platform_get_drvdata(pdev);
 	struct cc770_priv *priv = netdev_priv(dev);
 	struct resource *mem;
 
diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
index 9e9d0d6..6aa737a 100644
--- a/drivers/net/can/grcan.c
+++ b/drivers/net/can/grcan.c
@@ -1646,7 +1646,7 @@ static int grcan_setup_netdev(struct platform_device *ofdev,
 	if (err)
 		goto exit_free_candev;
 
-	dev_set_drvdata(&ofdev->dev, dev);
+	platform_set_drvdata(ofdev, dev);
 
 	/* Reset device to allow bit-timing to be set. No need to call
 	 * grcan_reset at this stage. That is done in grcan_open.
@@ -1715,13 +1715,12 @@ exit_error:
 
 static int grcan_remove(struct platform_device *ofdev)
 {
-	struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+	struct net_device *dev = platform_get_drvdata(ofdev);
 	struct grcan_priv *priv = netdev_priv(dev);
 
 	unregister_candev(dev); /* Will in turn call grcan_close */
 
 	irq_dispose_mapping(dev->irq);
-	dev_set_drvdata(&ofdev->dev, NULL);
 	netif_napi_del(&priv->napi);
 	free_candev(dev);
 
diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c
index 668850e..5b0ee8e 100644
--- a/drivers/net/can/mscan/mpc5xxx_can.c
+++ b/drivers/net/can/mscan/mpc5xxx_can.c
@@ -302,7 +302,7 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev)
 		goto exit_free_mscan;
 	}
 
-	dev_set_drvdata(&ofdev->dev, dev);
+	platform_set_drvdata(ofdev, dev);
 
 	dev_info(&ofdev->dev, "MSCAN at 0x%p, irq %d, clock %d Hz\n",
 		 priv->reg_base, dev->irq, priv->can.clock.freq);
@@ -321,11 +321,9 @@ exit_unmap_mem:
 
 static int mpc5xxx_can_remove(struct platform_device *ofdev)
 {
-	struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+	struct net_device *dev = platform_get_drvdata(ofdev);
 	struct mscan_priv *priv = netdev_priv(dev);
 
-	dev_set_drvdata(&ofdev->dev, NULL);
-
 	unregister_mscandev(dev);
 	iounmap(priv->reg_base);
 	irq_dispose_mapping(dev->irq);
@@ -338,7 +336,7 @@ static int mpc5xxx_can_remove(struct platform_device *ofdev)
 static struct mscan_regs saved_regs;
 static int mpc5xxx_can_suspend(struct platform_device *ofdev, pm_message_t state)
 {
-	struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+	struct net_device *dev = platform_get_drvdata(ofdev);
 	struct mscan_priv *priv = netdev_priv(dev);
 	struct mscan_regs *regs = (struct mscan_regs *)priv->reg_base;
 
@@ -349,7 +347,7 @@ static int mpc5xxx_can_suspend(struct platform_device *ofdev, pm_message_t state
 
 static int mpc5xxx_can_resume(struct platform_device *ofdev)
 {
-	struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+	struct net_device *dev = platform_get_drvdata(ofdev);
 	struct mscan_priv *priv = netdev_priv(dev);
 	struct mscan_regs *regs = (struct mscan_regs *)priv->reg_base;
 
diff --git a/drivers/net/can/sja1000/sja1000_isa.c b/drivers/net/can/sja1000/sja1000_isa.c
index 5c8da46..06a2823 100644
--- a/drivers/net/can/sja1000/sja1000_isa.c
+++ b/drivers/net/can/sja1000/sja1000_isa.c
@@ -197,7 +197,7 @@ static int sja1000_isa_probe(struct platform_device *pdev)
 	else
 		priv->cdr = CDR_DEFAULT;
 
-	dev_set_drvdata(&pdev->dev, dev);
+	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	err = register_sja1000dev(dev);
@@ -225,12 +225,11 @@ static int sja1000_isa_probe(struct platform_device *pdev)
 
 static int sja1000_isa_remove(struct platform_device *pdev)
 {
-	struct net_device *dev = dev_get_drvdata(&pdev->dev);
+	struct net_device *dev = platform_get_drvdata(pdev);
 	struct sja1000_priv *priv = netdev_priv(dev);
 	int idx = pdev->id;
 
 	unregister_sja1000dev(dev);
-	dev_set_drvdata(&pdev->dev, NULL);
 
 	if (mem[idx]) {
 		iounmap(priv->reg_base);
diff --git a/drivers/net/can/sja1000/sja1000_of_platform.c b/drivers/net/can/sja1000/sja1000_of_platform.c
index 8e0c4a0..31ad339 100644
--- a/drivers/net/can/sja1000/sja1000_of_platform.c
+++ b/drivers/net/can/sja1000/sja1000_of_platform.c
@@ -72,13 +72,11 @@ static void sja1000_ofp_write_reg(const struct sja1000_priv *priv,
 
 static int sja1000_ofp_remove(struct platform_device *ofdev)
 {
-	struct net_device *dev = dev_get_drvdata(&ofdev->dev);
+	struct net_device *dev = platform_get_drvdata(ofdev);
 	struct sja1000_priv *priv = netdev_priv(dev);
 	struct device_node *np = ofdev->dev.of_node;
 	struct resource res;
 
-	dev_set_drvdata(&ofdev->dev, NULL);
-
 	unregister_sja1000dev(dev);
 	free_sja1000dev(dev);
 	iounmap(priv->reg_base);
@@ -181,7 +179,7 @@ static int sja1000_ofp_probe(struct platform_device *ofdev)
 		 priv->reg_base, dev->irq, priv->can.clock.freq,
 		 priv->ocr, priv->cdr);
 
-	dev_set_drvdata(&ofdev->dev, dev);
+	platform_set_drvdata(ofdev, dev);
 	SET_NETDEV_DEV(dev, &ofdev->dev);
 
 	err = register_sja1000dev(dev);
diff --git a/drivers/net/can/sja1000/sja1000_platform.c b/drivers/net/can/sja1000/sja1000_platform.c
index 21619bb..8e259c5 100644
--- a/drivers/net/can/sja1000/sja1000_platform.c
+++ b/drivers/net/can/sja1000/sja1000_platform.c
@@ -135,7 +135,7 @@ static int sp_probe(struct platform_device *pdev)
 		break;
 	}
 
-	dev_set_drvdata(&pdev->dev, dev);
+	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	err = register_sja1000dev(dev);
@@ -161,12 +161,11 @@ static int sp_probe(struct platform_device *pdev)
 
 static int sp_remove(struct platform_device *pdev)
 {
-	struct net_device *dev = dev_get_drvdata(&pdev->dev);
+	struct net_device *dev = platform_get_drvdata(pdev);
 	struct sja1000_priv *priv = netdev_priv(dev);
 	struct resource *res;
 
 	unregister_sja1000dev(dev);
-	dev_set_drvdata(&pdev->dev, NULL);
 
 	if (priv->reg_base)
 		iounmap(priv->reg_base);
-- 
cgit v0.10.2


From ed405be5cb5e8e494e8dcd83b6eb1add34dc752a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 3 Jun 2013 13:51:59 +0200
Subject: mac80211: fix sdata locking around __ieee80211_request_smps

My cfg80211/mac80211 locking unification broke the sdata
locking in ieee80211_set_power_mgmt, it needs to acquire
the lock for __ieee80211_request_smps(). Add the locking.

Reported-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 9034da1..3062210 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2378,7 +2378,9 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	local->dynamic_ps_forced_timeout = timeout;
 
 	/* no change, but if automatic follow powersave */
+	sdata_lock(sdata);
 	__ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
+	sdata_unlock(sdata);
 
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
-- 
cgit v0.10.2


From 866403a7bdd3941cbb4e2085d8ac368dcabe800c Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <thomas@cozybit.com>
Date: Fri, 31 May 2013 17:41:47 -0700
Subject: mac80211: don't check local mesh TTL on TX

nl80211 has already verified the mesh TTL on setting the
mesh config, so no need to check it again in mac80211.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 34be933..4105d0c 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1790,12 +1790,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		break;
 #ifdef CONFIG_MAC80211_MESH
 	case NL80211_IFTYPE_MESH_POINT:
-		if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
-			/* Do not send frames with mesh_ttl == 0 */
-			sdata->u.mesh.mshstats.dropped_frames_ttl++;
-			goto fail_rcu;
-		}
-
 		if (!is_multicast_ether_addr(skb->data)) {
 			struct sta_info *next_hop;
 			bool mpp_lookup = true;
-- 
cgit v0.10.2


From e05ecccdf752122a439b03c3190458d2c8f0bac6 Mon Sep 17 00:00:00 2001
From: Jacob Minshall <jacob@cozybit.com>
Date: Wed, 29 May 2013 14:32:36 -0700
Subject: mac80211: set mesh formation field properly

Cap max peerings at 63 in accordance with IEEE-2012 8.4.2.100.7.
Triggers a beacon regeneration every time the number of peerings changes.
Previously this would only happen if the "accepting peerings" bit changed.

Signed-off-by: Jacob Minshall <jacob@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index d826e5a..b0dc87a 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -146,6 +146,7 @@ static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 #define IEEE80211_MAX_RTS_THRESHOLD	2353
 #define IEEE80211_MAX_AID		2007
 #define IEEE80211_MAX_TIM_LEN		251
+#define IEEE80211_MAX_MESH_PEERINGS	63
 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
    6.2.1.1.2.
 
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index b3d1fdd..73a597b 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -274,8 +274,7 @@ int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
 	*pos++ = ifmsh->mesh_auth_id;
 	/* Mesh Formation Info - number of neighbors */
 	neighbors = atomic_read(&ifmsh->estab_plinks);
-	/* Number of neighbor mesh STAs or 15 whichever is smaller */
-	neighbors = (neighbors > 15) ? 15 : neighbors;
+	neighbors = min_t(int, neighbors, IEEE80211_MAX_MESH_PEERINGS);
 	*pos++ = neighbors << 1;
 	/* Mesh capability */
 	*pos = IEEE80211_MESHCONF_CAPAB_FORWARDING;
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index da15877..8b4d9a3 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -324,14 +324,14 @@ static inline
 u32 mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
 {
 	atomic_inc(&sdata->u.mesh.estab_plinks);
-	return mesh_accept_plinks_update(sdata);
+	return mesh_accept_plinks_update(sdata) | BSS_CHANGED_BEACON;
 }
 
 static inline
 u32 mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
 {
 	atomic_dec(&sdata->u.mesh.estab_plinks);
-	return mesh_accept_plinks_update(sdata);
+	return mesh_accept_plinks_update(sdata) | BSS_CHANGED_BEACON;
 }
 
 static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata)
-- 
cgit v0.10.2


From 964dc9e2c3aaccacacd40640964a58544fb5769a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 3 Jun 2013 17:25:34 +0200
Subject: cfg80211: take WoWLAN support information out of wiphy struct

There's no need to take up the space for devices that don't
support WoWLAN, and most drivers can even make the support
data static const (except where it's modified at runtime.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 5c9736a..f7995b2 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -3679,6 +3679,20 @@ err:
 	return NULL;
 }
 
+#ifdef CONFIG_PM
+static const struct wiphy_wowlan_support ath6kl_wowlan_support = {
+	.flags = WIPHY_WOWLAN_MAGIC_PKT |
+		 WIPHY_WOWLAN_DISCONNECT |
+		 WIPHY_WOWLAN_GTK_REKEY_FAILURE  |
+		 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
+		 WIPHY_WOWLAN_EAP_IDENTITY_REQ   |
+		 WIPHY_WOWLAN_4WAY_HANDSHAKE,
+	.n_patterns = WOW_MAX_FILTERS_PER_LIST,
+	.pattern_min_len = 1,
+	.pattern_max_len = WOW_PATTERN_SIZE,
+};
+#endif
+
 int ath6kl_cfg80211_init(struct ath6kl *ar)
 {
 	struct wiphy *wiphy = ar->wiphy;
@@ -3772,15 +3786,7 @@ int ath6kl_cfg80211_init(struct ath6kl *ar)
 	wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
 
 #ifdef CONFIG_PM
-	wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
-			      WIPHY_WOWLAN_DISCONNECT |
-			      WIPHY_WOWLAN_GTK_REKEY_FAILURE  |
-			      WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
-			      WIPHY_WOWLAN_EAP_IDENTITY_REQ   |
-			      WIPHY_WOWLAN_4WAY_HANDSHAKE;
-	wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST;
-	wiphy->wowlan.pattern_min_len = 1;
-	wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE;
+	wiphy->wowlan = &ath6kl_wowlan_support;
 #endif
 
 	wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS;
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 0237b28..f993362 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -755,6 +755,15 @@ static const struct ieee80211_iface_combination if_comb[] = {
 	}
 };
 
+#ifdef CONFIG_PM
+static const struct wiphy_wowlan_support ath9k_wowlan_support = {
+	.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
+	.n_patterns = MAX_NUM_USER_PATTERN,
+	.pattern_min_len = 1,
+	.pattern_max_len = MAX_PATTERN_SIZE,
+};
+#endif
+
 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 {
 	struct ath_hw *ah = sc->sc_ah;
@@ -797,15 +806,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 #ifdef CONFIG_PM_SLEEP
 
 	if ((ah->caps.hw_caps & ATH9K_HW_WOW_DEVICE_CAPABLE) &&
-	    device_can_wakeup(sc->dev)) {
-
-		hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
-					  WIPHY_WOWLAN_DISCONNECT;
-		hw->wiphy->wowlan.n_patterns = MAX_NUM_USER_PATTERN;
-		hw->wiphy->wowlan.pattern_min_len = 1;
-		hw->wiphy->wowlan.pattern_max_len = MAX_PATTERN_SIZE;
-
-	}
+	    device_can_wakeup(sc->dev))
+		hw->wiphy->wowlan = &ath9k_wowlan_support;
 
 	atomic_set(&sc->wow_sleep_proc_intr, -1);
 	atomic_set(&sc->wow_got_bmiss_intr, -1);
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index 71ea775..e71acfd 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -870,6 +870,9 @@ struct iwl_priv {
 	__le64 replay_ctr;
 	__le16 last_seq_ctl;
 	bool have_rekey_data;
+#ifdef CONFIG_PM_SLEEP
+	struct wiphy_wowlan_support wowlan_support;
+#endif
 
 	/* device_pointers: pointers to ucode event tables */
 	struct {
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index cab23af..661b5e7 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -208,20 +208,21 @@ int iwlagn_mac_setup_register(struct iwl_priv *priv,
 	    priv->trans->ops->d3_suspend &&
 	    priv->trans->ops->d3_resume &&
 	    device_can_wakeup(priv->trans->dev)) {
-		hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
-					  WIPHY_WOWLAN_DISCONNECT |
-					  WIPHY_WOWLAN_EAP_IDENTITY_REQ |
-					  WIPHY_WOWLAN_RFKILL_RELEASE;
+		priv->wowlan_support.flags = WIPHY_WOWLAN_MAGIC_PKT |
+					     WIPHY_WOWLAN_DISCONNECT |
+					     WIPHY_WOWLAN_EAP_IDENTITY_REQ |
+					     WIPHY_WOWLAN_RFKILL_RELEASE;
 		if (!iwlwifi_mod_params.sw_crypto)
-			hw->wiphy->wowlan.flags |=
+			priv->wowlan_support.flags |=
 				WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
 				WIPHY_WOWLAN_GTK_REKEY_FAILURE;
 
-		hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
-		hw->wiphy->wowlan.pattern_min_len =
+		priv->wowlan_support.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
+		priv->wowlan_support.pattern_min_len =
 					IWLAGN_WOWLAN_MIN_PATTERN_LEN;
-		hw->wiphy->wowlan.pattern_max_len =
+		priv->wowlan_support.pattern_max_len =
 					IWLAGN_WOWLAN_MAX_PATTERN_LEN;
+		hw->wiphy->wowlan = &priv->wowlan_support;
 	}
 #endif
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index dd158ec..827fa64 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -222,20 +222,20 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	    mvm->trans->ops->d3_suspend &&
 	    mvm->trans->ops->d3_resume &&
 	    device_can_wakeup(mvm->trans->dev)) {
-		hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
-					  WIPHY_WOWLAN_DISCONNECT |
-					  WIPHY_WOWLAN_EAP_IDENTITY_REQ |
-					  WIPHY_WOWLAN_RFKILL_RELEASE;
+		mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
+				    WIPHY_WOWLAN_DISCONNECT |
+				    WIPHY_WOWLAN_EAP_IDENTITY_REQ |
+				    WIPHY_WOWLAN_RFKILL_RELEASE;
 		if (!iwlwifi_mod_params.sw_crypto)
-			hw->wiphy->wowlan.flags |=
-				WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
-				WIPHY_WOWLAN_GTK_REKEY_FAILURE |
-				WIPHY_WOWLAN_4WAY_HANDSHAKE;
-
-		hw->wiphy->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
-		hw->wiphy->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
-		hw->wiphy->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
-		hw->wiphy->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
+			mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
+					     WIPHY_WOWLAN_GTK_REKEY_FAILURE |
+					     WIPHY_WOWLAN_4WAY_HANDSHAKE;
+
+		mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
+		mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
+		mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
+		mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
+		hw->wiphy->wowlan = &mvm->wowlan;
 	}
 #endif
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 8269bc5..b62a948 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -336,6 +336,7 @@ struct iwl_mvm {
 	struct ieee80211_vif *p2p_device_vif;
 
 #ifdef CONFIG_PM_SLEEP
+	struct wiphy_wowlan_support wowlan;
 	int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
 #endif
 
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index e42b266..6007789 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -2426,6 +2426,16 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = {
 #endif
 };
 
+#ifdef CONFIG_PM
+static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
+	.flags = WIPHY_WOWLAN_MAGIC_PKT,
+	.n_patterns = MWIFIEX_MAX_FILTERS,
+	.pattern_min_len = 1,
+	.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
+	.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
+};
+#endif
+
 /*
  * This function registers the device with CFG802.11 subsystem.
  *
@@ -2483,11 +2493,7 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 	wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
 
 #ifdef CONFIG_PM
-	wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
-	wiphy->wowlan.n_patterns = MWIFIEX_MAX_FILTERS;
-	wiphy->wowlan.pattern_min_len = 1;
-	wiphy->wowlan.pattern_max_len = MWIFIEX_MAX_PATTERN_LEN;
-	wiphy->wowlan.max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN;
+	wiphy->wowlan = &mwifiex_wowlan_support;
 #endif
 
 	wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 953111a..796928b 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -6018,6 +6018,15 @@ int wlcore_free_hw(struct wl1271 *wl)
 }
 EXPORT_SYMBOL_GPL(wlcore_free_hw);
 
+#ifdef CONFIG_PM
+static const struct wiphy_wowlan_support wlcore_wowlan_support = {
+	.flags = WIPHY_WOWLAN_ANY,
+	.n_patterns = WL1271_MAX_RX_FILTERS,
+	.pattern_min_len = 1,
+	.pattern_max_len = WL1271_RX_FILTER_MAX_PATTERN_SIZE,
+};
+#endif
+
 static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 {
 	struct wl1271 *wl = context;
@@ -6071,14 +6080,8 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 	if (!ret) {
 		wl->irq_wake_enabled = true;
 		device_init_wakeup(wl->dev, 1);
-		if (pdata->pwr_in_suspend) {
-			wl->hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
-			wl->hw->wiphy->wowlan.n_patterns =
-				WL1271_MAX_RX_FILTERS;
-			wl->hw->wiphy->wowlan.pattern_min_len = 1;
-			wl->hw->wiphy->wowlan.pattern_max_len =
-				WL1271_RX_FILTER_MAX_PATTERN_SIZE;
-		}
+		if (pdata->pwr_in_suspend)
+			wl->hw->wiphy->wowlan = &wlcore_wowlan_support;
 	}
 #endif
 	disable_irq(wl->irq);
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 6dd1959..6169fca 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2654,7 +2654,7 @@ struct wiphy {
 	u32 hw_version;
 
 #ifdef CONFIG_PM
-	struct wiphy_wowlan_support wowlan;
+	const struct wiphy_wowlan_support *wowlan;
 	struct cfg80211_wowlan *wowlan_config;
 #endif
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 1998f14..626c83c 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -686,8 +686,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 		return -EINVAL;
 
 #ifdef CONFIG_PM
-	if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) &&
-	    (!local->ops->suspend || !local->ops->resume))
+	if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume))
 		return -EINVAL;
 #endif
 
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 41cec17..f553b94 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -449,8 +449,13 @@ int wiphy_register(struct wiphy *wiphy)
 	u16 ifmodes = wiphy->interface_modes;
 
 #ifdef CONFIG_PM
-	if (WARN_ON((wiphy->wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
-		    !(wiphy->wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)))
+	if (WARN_ON(wiphy->wowlan &&
+		    (wiphy->wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
+		    !(wiphy->wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)))
+		return -EINVAL;
+	if (WARN_ON(wiphy->wowlan &&
+		    !wiphy->wowlan->flags && !wiphy->wowlan->n_patterns &&
+		    !wiphy->wowlan->tcp))
 		return -EINVAL;
 #endif
 
@@ -540,12 +545,11 @@ int wiphy_register(struct wiphy *wiphy)
 	}
 
 #ifdef CONFIG_PM
-	if (rdev->wiphy.wowlan.n_patterns) {
-		if (WARN_ON(!rdev->wiphy.wowlan.pattern_min_len ||
-			    rdev->wiphy.wowlan.pattern_min_len >
-			    rdev->wiphy.wowlan.pattern_max_len))
-			return -EINVAL;
-	}
+	if (WARN_ON(rdev->wiphy.wowlan && rdev->wiphy.wowlan->n_patterns &&
+		    (!rdev->wiphy.wowlan->pattern_min_len ||
+		     rdev->wiphy.wowlan->pattern_min_len >
+				rdev->wiphy.wowlan->pattern_max_len)))
+		return -EINVAL;
 #endif
 
 	/* check and set up bitrates */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 31d265f..7ee9af3 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -908,7 +908,7 @@ nla_put_failure:
 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
 					struct sk_buff *msg)
 {
-	const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
+	const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
 	struct nlattr *nl_tcp;
 
 	if (!tcp)
@@ -951,37 +951,37 @@ static int nl80211_send_wowlan(struct sk_buff *msg,
 {
 	struct nlattr *nl_wowlan;
 
-	if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
+	if (!dev->wiphy.wowlan)
 		return 0;
 
 	nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
 	if (!nl_wowlan)
 		return -ENOBUFS;
 
-	if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
+	if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
 	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
-	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
+	    ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
 	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
-	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
+	    ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
 	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
-	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
+	    ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
 	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
-	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
+	    ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
 	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
-	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
+	    ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
 	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
-	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
+	    ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
 	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
-	    ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
+	    ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
 	     nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
 		return -ENOBUFS;
 
-	if (dev->wiphy.wowlan.n_patterns) {
+	if (dev->wiphy.wowlan->n_patterns) {
 		struct nl80211_wowlan_pattern_support pat = {
-			.max_patterns = dev->wiphy.wowlan.n_patterns,
-			.min_pattern_len = dev->wiphy.wowlan.pattern_min_len,
-			.max_pattern_len = dev->wiphy.wowlan.pattern_max_len,
-			.max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
+			.max_patterns = dev->wiphy.wowlan->n_patterns,
+			.min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
+			.max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
+			.max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
 		};
 
 		if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
@@ -7580,8 +7580,7 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
 	void *hdr;
 	u32 size = NLMSG_DEFAULT_SIZE;
 
-	if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
-	    !rdev->wiphy.wowlan.tcp)
+	if (!rdev->wiphy.wowlan)
 		return -EOPNOTSUPP;
 
 	if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
@@ -7654,7 +7653,7 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
 	u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
 	int err, port;
 
-	if (!rdev->wiphy.wowlan.tcp)
+	if (!rdev->wiphy.wowlan->tcp)
 		return -EINVAL;
 
 	err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
@@ -7674,16 +7673,16 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
 		return -EINVAL;
 
 	data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
-	if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
+	if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
 		return -EINVAL;
 
 	if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
-			rdev->wiphy.wowlan.tcp->data_interval_max ||
+			rdev->wiphy.wowlan->tcp->data_interval_max ||
 	    nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
 		return -EINVAL;
 
 	wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
-	if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
+	if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
 		return -EINVAL;
 
 	wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
@@ -7698,13 +7697,13 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
 
 		if (!tok->len || tokens_size % tok->len)
 			return -EINVAL;
-		if (!rdev->wiphy.wowlan.tcp->tok)
+		if (!rdev->wiphy.wowlan->tcp->tok)
 			return -EINVAL;
-		if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
+		if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
 			return -EINVAL;
-		if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
+		if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
 			return -EINVAL;
-		if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
+		if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
 			return -EINVAL;
 		if (tok->offset + tok->len > data_size)
 			return -EINVAL;
@@ -7712,7 +7711,7 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
 
 	if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
 		seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
-		if (!rdev->wiphy.wowlan.tcp->seq)
+		if (!rdev->wiphy.wowlan->tcp->seq)
 			return -EINVAL;
 		if (seq->len == 0 || seq->len > 4)
 			return -EINVAL;
@@ -7793,12 +7792,11 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
 	struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
 	struct cfg80211_wowlan new_triggers = {};
 	struct cfg80211_wowlan *ntrig;
-	struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
+	const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
 	int err, i;
 	bool prev_enabled = rdev->wiphy.wowlan_config;
 
-	if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
-	    !rdev->wiphy.wowlan.tcp)
+	if (!wowlan)
 		return -EOPNOTSUPP;
 
 	if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
-- 
cgit v0.10.2


From 911373cca1b45571b62938f8f19cec24cb102471 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Sat, 1 Jun 2013 08:08:42 -0400
Subject: cw1200: Rename 'sbus' to 'hwbus'

This avoids problems when building on SPARC targets due to the driver
calling the bus abstraction layer 'sbus'.  Not that any SBUS-sporting
SPARC targets are likely to have an SDIO controller, but this is the
correct thing to do.

See http://kisskb.ellerman.id.au/kisskb/buildresult/8846508/

Signed-off-by:  Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/bh.c b/drivers/net/wireless/cw1200/bh.c
index cf7375f..324b570 100644
--- a/drivers/net/wireless/cw1200/bh.c
+++ b/drivers/net/wireless/cw1200/bh.c
@@ -23,7 +23,7 @@
 #include "bh.h"
 #include "hwio.h"
 #include "wsm.h"
-#include "sbus.h"
+#include "hwbus.h"
 #include "debug.h"
 #include "fwio.h"
 
@@ -103,7 +103,7 @@ void cw1200_irq_handler(struct cw1200_common *priv)
 	pr_debug("[BH] irq.\n");
 
 	/* Disable Interrupts! */
-	/* NOTE:  sbus_ops->lock already held */
+	/* NOTE:  hwbus_ops->lock already held */
 	__cw1200_irq_enable(priv, 0);
 
 	if (/* WARN_ON */(priv->bh_error))
@@ -265,8 +265,8 @@ static int cw1200_bh_rx_helper(struct cw1200_common *priv,
 	 * to the NEXT Message length + 2 Bytes for SKB */
 	read_len = read_len + 2;
 
-	alloc_len = priv->sbus_ops->align_size(
-		priv->sbus_priv, read_len);
+	alloc_len = priv->hwbus_ops->align_size(
+		priv->hwbus_priv, read_len);
 
 	/* Check if not exceeding CW1200 capabilities */
 	if (WARN_ON_ONCE(alloc_len > EFFECTIVE_BUF_SIZE)) {
@@ -384,8 +384,8 @@ static int cw1200_bh_tx_helper(struct cw1200_common *priv,
 
 	atomic_add(1, &priv->bh_tx);
 
-	tx_len = priv->sbus_ops->align_size(
-		priv->sbus_priv, tx_len);
+	tx_len = priv->hwbus_ops->align_size(
+		priv->hwbus_priv, tx_len);
 
 	/* Check if not exceeding CW1200 capabilities */
 	if (WARN_ON_ONCE(tx_len > EFFECTIVE_BUF_SIZE))
@@ -597,15 +597,15 @@ static int cw1200_bh(void *arg)
 
 	done:
 		/* Re-enable device interrupts */
-		priv->sbus_ops->lock(priv->sbus_priv);
+		priv->hwbus_ops->lock(priv->hwbus_priv);
 		__cw1200_irq_enable(priv, 1);
-		priv->sbus_ops->unlock(priv->sbus_priv);
+		priv->hwbus_ops->unlock(priv->hwbus_priv);
 	}
 
 	/* Explicitly disable device interrupts */
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 	__cw1200_irq_enable(priv, 0);
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 
 	if (!term) {
 		pr_err("[BH] Fatal error, exiting.\n");
diff --git a/drivers/net/wireless/cw1200/cw1200.h b/drivers/net/wireless/cw1200/cw1200.h
index e9424e6..95320f2 100644
--- a/drivers/net/wireless/cw1200/cw1200.h
+++ b/drivers/net/wireless/cw1200/cw1200.h
@@ -30,7 +30,7 @@
 #include "pm.h"
 
 /* Forward declarations */
-struct sbus_ops;
+struct hwbus_ops;
 struct task_struct;
 struct cw1200_debug_priv;
 struct firmware;
@@ -109,8 +109,8 @@ struct cw1200_common {
 	u8 mac_addr[ETH_ALEN];
 
 	/* Hardware interface */
-	const struct sbus_ops		*sbus_ops;
-	struct sbus_priv		*sbus_priv;
+	const struct hwbus_ops		*hwbus_ops;
+	struct hwbus_priv		*hwbus_priv;
 
 	/* Hardware information */
 	enum {
@@ -298,8 +298,8 @@ struct cw1200_sta_priv {
 };
 
 /* interfaces for the drivers */
-int cw1200_core_probe(const struct sbus_ops *sbus_ops,
-		      struct sbus_priv *sbus,
+int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
+		      struct hwbus_priv *hwbus,
 		      struct device *pdev,
 		      struct cw1200_common **pself,
 		      int ref_clk, const u8 *macaddr,
diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index 863510d..78c3bc5 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -19,7 +19,7 @@
 #include <net/mac80211.h>
 
 #include "cw1200.h"
-#include "sbus.h"
+#include "hwbus.h"
 #include <linux/cw1200_platform.h>
 #include "hwio.h"
 
@@ -29,7 +29,7 @@ MODULE_LICENSE("GPL");
 
 #define SDIO_BLOCK_SIZE (512)
 
-struct sbus_priv {
+struct hwbus_priv {
 	struct sdio_func	*func;
 	struct cw1200_common	*core;
 	const struct cw1200_platform_data_sdio *pdata;
@@ -48,35 +48,35 @@ static const struct sdio_device_id cw1200_sdio_ids[] = {
 	{ /* end: all zeroes */			},
 };
 
-/* sbus_ops implemetation */
+/* hwbus_ops implemetation */
 
-static int cw1200_sdio_memcpy_fromio(struct sbus_priv *self,
+static int cw1200_sdio_memcpy_fromio(struct hwbus_priv *self,
 				     unsigned int addr,
 				     void *dst, int count)
 {
 	return sdio_memcpy_fromio(self->func, dst, addr, count);
 }
 
-static int cw1200_sdio_memcpy_toio(struct sbus_priv *self,
+static int cw1200_sdio_memcpy_toio(struct hwbus_priv *self,
 				   unsigned int addr,
 				   const void *src, int count)
 {
 	return sdio_memcpy_toio(self->func, addr, (void *)src, count);
 }
 
-static void cw1200_sdio_lock(struct sbus_priv *self)
+static void cw1200_sdio_lock(struct hwbus_priv *self)
 {
 	sdio_claim_host(self->func);
 }
 
-static void cw1200_sdio_unlock(struct sbus_priv *self)
+static void cw1200_sdio_unlock(struct hwbus_priv *self)
 {
 	sdio_release_host(self->func);
 }
 
 static void cw1200_sdio_irq_handler(struct sdio_func *func)
 {
-	struct sbus_priv *self = sdio_get_drvdata(func);
+	struct hwbus_priv *self = sdio_get_drvdata(func);
 
 	/* note:  sdio_host already claimed here. */
 	if (self->core)
@@ -90,7 +90,7 @@ static irqreturn_t cw1200_gpio_hardirq(int irq, void *dev_id)
 
 static irqreturn_t cw1200_gpio_irq(int irq, void *dev_id)
 {
-	struct sbus_priv *self = dev_id;
+	struct hwbus_priv *self = dev_id;
 
 	if (self->core) {
 		sdio_claim_host(self->func);
@@ -102,7 +102,7 @@ static irqreturn_t cw1200_gpio_irq(int irq, void *dev_id)
 	}
 }
 
-static int cw1200_request_irq(struct sbus_priv *self)
+static int cw1200_request_irq(struct hwbus_priv *self)
 {
 	int ret;
 	const struct resource *irq = self->pdata->irq;
@@ -140,7 +140,7 @@ err:
 	return ret;
 }
 
-static int cw1200_sdio_irq_subscribe(struct sbus_priv *self)
+static int cw1200_sdio_irq_subscribe(struct hwbus_priv *self)
 {
 	int ret = 0;
 
@@ -155,7 +155,7 @@ static int cw1200_sdio_irq_subscribe(struct sbus_priv *self)
 	return ret;
 }
 
-static int cw1200_sdio_irq_unsubscribe(struct sbus_priv *self)
+static int cw1200_sdio_irq_unsubscribe(struct hwbus_priv *self)
 {
 	int ret = 0;
 
@@ -237,7 +237,7 @@ static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
 	return 0;
 }
 
-static size_t cw1200_sdio_align_size(struct sbus_priv *self, size_t size)
+static size_t cw1200_sdio_align_size(struct hwbus_priv *self, size_t size)
 {
 	if (self->pdata->no_nptb)
 		size = round_up(size, SDIO_BLOCK_SIZE);
@@ -247,7 +247,7 @@ static size_t cw1200_sdio_align_size(struct sbus_priv *self, size_t size)
 	return size;
 }
 
-static int cw1200_sdio_pm(struct sbus_priv *self, bool suspend)
+static int cw1200_sdio_pm(struct hwbus_priv *self, bool suspend)
 {
 	int ret = 0;
 
@@ -256,9 +256,9 @@ static int cw1200_sdio_pm(struct sbus_priv *self, bool suspend)
 	return ret;
 }
 
-static struct sbus_ops cw1200_sdio_sbus_ops = {
-	.sbus_memcpy_fromio	= cw1200_sdio_memcpy_fromio,
-	.sbus_memcpy_toio	= cw1200_sdio_memcpy_toio,
+static struct hwbus_ops cw1200_sdio_hwbus_ops = {
+	.hwbus_memcpy_fromio	= cw1200_sdio_memcpy_fromio,
+	.hwbus_memcpy_toio	= cw1200_sdio_memcpy_toio,
 	.lock			= cw1200_sdio_lock,
 	.unlock			= cw1200_sdio_unlock,
 	.align_size		= cw1200_sdio_align_size,
@@ -269,7 +269,7 @@ static struct sbus_ops cw1200_sdio_sbus_ops = {
 static int cw1200_sdio_probe(struct sdio_func *func,
 				       const struct sdio_device_id *id)
 {
-	struct sbus_priv *self;
+	struct hwbus_priv *self;
 	int status;
 
 	pr_info("cw1200_wlan_sdio: Probe called\n");
@@ -280,7 +280,7 @@ static int cw1200_sdio_probe(struct sdio_func *func,
 
 	self = kzalloc(sizeof(*self), GFP_KERNEL);
 	if (!self) {
-		pr_err("Can't allocate SDIO sbus_priv.\n");
+		pr_err("Can't allocate SDIO hwbus_priv.\n");
 		return -ENOMEM;
 	}
 
@@ -295,7 +295,7 @@ static int cw1200_sdio_probe(struct sdio_func *func,
 
 	status = cw1200_sdio_irq_subscribe(self);
 
-	status = cw1200_core_probe(&cw1200_sdio_sbus_ops,
+	status = cw1200_core_probe(&cw1200_sdio_hwbus_ops,
 				   self, &func->dev, &self->core,
 				   self->pdata->ref_clk,
 				   self->pdata->macaddr,
@@ -317,7 +317,7 @@ static int cw1200_sdio_probe(struct sdio_func *func,
  * device is disconnected */
 static void cw1200_sdio_disconnect(struct sdio_func *func)
 {
-	struct sbus_priv *self = sdio_get_drvdata(func);
+	struct hwbus_priv *self = sdio_get_drvdata(func);
 
 	if (self) {
 		cw1200_sdio_irq_unsubscribe(self);
@@ -338,7 +338,7 @@ static int cw1200_sdio_suspend(struct device *dev)
 {
 	int ret;
 	struct sdio_func *func = dev_to_sdio_func(dev);
-	struct sbus_priv *self = sdio_get_drvdata(func);
+	struct hwbus_priv *self = sdio_get_drvdata(func);
 
 	if (!cw1200_can_suspend(self->core))
 		return -EAGAIN;
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index 75adef0..75efe54 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -24,7 +24,7 @@
 #include <linux/device.h>
 
 #include "cw1200.h"
-#include "sbus.h"
+#include "hwbus.h"
 #include <linux/cw1200_platform.h>
 #include "hwio.h"
 
@@ -35,7 +35,7 @@ MODULE_ALIAS("spi:cw1200_wlan_spi");
 
 /* #define SPI_DEBUG */
 
-struct sbus_priv {
+struct hwbus_priv {
 	struct spi_device	*func;
 	struct cw1200_common	*core;
 	const struct cw1200_platform_data_spi *pdata;
@@ -58,7 +58,7 @@ struct sbus_priv {
 
 */
 
-static int cw1200_spi_memcpy_fromio(struct sbus_priv *self,
+static int cw1200_spi_memcpy_fromio(struct hwbus_priv *self,
 				     unsigned int addr,
 				     void *dst, int count)
 {
@@ -119,7 +119,7 @@ static int cw1200_spi_memcpy_fromio(struct sbus_priv *self,
 	return ret;
 }
 
-static int cw1200_spi_memcpy_toio(struct sbus_priv *self,
+static int cw1200_spi_memcpy_toio(struct hwbus_priv *self,
 				   unsigned int addr,
 				   const void *src, int count)
 {
@@ -187,7 +187,7 @@ static int cw1200_spi_memcpy_toio(struct sbus_priv *self,
 	return rval;
 }
 
-static void cw1200_spi_lock(struct sbus_priv *self)
+static void cw1200_spi_lock(struct hwbus_priv *self)
 {
 	unsigned long flags;
 
@@ -209,7 +209,7 @@ static void cw1200_spi_lock(struct sbus_priv *self)
 	return;
 }
 
-static void cw1200_spi_unlock(struct sbus_priv *self)
+static void cw1200_spi_unlock(struct hwbus_priv *self)
 {
 	unsigned long flags;
 
@@ -221,7 +221,7 @@ static void cw1200_spi_unlock(struct sbus_priv *self)
 
 static irqreturn_t cw1200_spi_irq_handler(int irq, void *dev_id)
 {
-	struct sbus_priv *self = dev_id;
+	struct hwbus_priv *self = dev_id;
 
 	if (self->core) {
 		cw1200_irq_handler(self->core);
@@ -231,7 +231,7 @@ static irqreturn_t cw1200_spi_irq_handler(int irq, void *dev_id)
 	}
 }
 
-static int cw1200_spi_irq_subscribe(struct sbus_priv *self)
+static int cw1200_spi_irq_subscribe(struct hwbus_priv *self)
 {
 	int ret;
 
@@ -255,7 +255,7 @@ exit:
 	return ret;
 }
 
-static int cw1200_spi_irq_unsubscribe(struct sbus_priv *self)
+static int cw1200_spi_irq_unsubscribe(struct hwbus_priv *self)
 {
 	int ret = 0;
 
@@ -331,19 +331,19 @@ static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
 	return 0;
 }
 
-static size_t cw1200_spi_align_size(struct sbus_priv *self, size_t size)
+static size_t cw1200_spi_align_size(struct hwbus_priv *self, size_t size)
 {
 	return size & 1 ? size + 1 : size;
 }
 
-static int cw1200_spi_pm(struct sbus_priv *self, bool suspend)
+static int cw1200_spi_pm(struct hwbus_priv *self, bool suspend)
 {
 	return irq_set_irq_wake(self->func->irq, suspend);
 }
 
-static struct sbus_ops cw1200_spi_sbus_ops = {
-	.sbus_memcpy_fromio	= cw1200_spi_memcpy_fromio,
-	.sbus_memcpy_toio	= cw1200_spi_memcpy_toio,
+static struct hwbus_ops cw1200_spi_hwbus_ops = {
+	.hwbus_memcpy_fromio	= cw1200_spi_memcpy_fromio,
+	.hwbus_memcpy_toio	= cw1200_spi_memcpy_toio,
 	.lock			= cw1200_spi_lock,
 	.unlock			= cw1200_spi_unlock,
 	.align_size		= cw1200_spi_align_size,
@@ -355,7 +355,7 @@ static int cw1200_spi_probe(struct spi_device *func)
 {
 	const struct cw1200_platform_data_spi *plat_data =
 		func->dev.platform_data;
-	struct sbus_priv *self;
+	struct hwbus_priv *self;
 	int status;
 
 	/* Sanity check speed */
@@ -389,7 +389,7 @@ static int cw1200_spi_probe(struct spi_device *func)
 
 	self = kzalloc(sizeof(*self), GFP_KERNEL);
 	if (!self) {
-		pr_err("Can't allocate SPI sbus_priv.");
+		pr_err("Can't allocate SPI hwbus_priv.");
 		return -ENOMEM;
 	}
 
@@ -401,7 +401,7 @@ static int cw1200_spi_probe(struct spi_device *func)
 
 	status = cw1200_spi_irq_subscribe(self);
 
-	status = cw1200_core_probe(&cw1200_spi_sbus_ops,
+	status = cw1200_core_probe(&cw1200_spi_hwbus_ops,
 				   self, &func->dev, &self->core,
 				   self->pdata->ref_clk,
 				   self->pdata->macaddr,
@@ -420,7 +420,7 @@ static int cw1200_spi_probe(struct spi_device *func)
 /* Disconnect Function to be called by SPI stack when device is disconnected */
 static int cw1200_spi_disconnect(struct spi_device *func)
 {
-	struct sbus_priv *self = spi_get_drvdata(func);
+	struct hwbus_priv *self = spi_get_drvdata(func);
 
 	if (self) {
 		cw1200_spi_irq_unsubscribe(self);
@@ -438,7 +438,7 @@ static int cw1200_spi_disconnect(struct spi_device *func)
 #ifdef CONFIG_PM
 static int cw1200_spi_suspend(struct device *dev, pm_message_t state)
 {
-	struct sbus_priv *self = spi_get_drvdata(to_spi_device(dev));
+	struct hwbus_priv *self = spi_get_drvdata(to_spi_device(dev));
 
 	if (!cw1200_can_suspend(self->core))
 		return -EAGAIN;
diff --git a/drivers/net/wireless/cw1200/fwio.c b/drivers/net/wireless/cw1200/fwio.c
index ad01cd2..427c9f2 100644
--- a/drivers/net/wireless/cw1200/fwio.c
+++ b/drivers/net/wireless/cw1200/fwio.c
@@ -22,7 +22,7 @@
 #include "cw1200.h"
 #include "fwio.h"
 #include "hwio.h"
-#include "sbus.h"
+#include "hwbus.h"
 #include "bh.h"
 
 static int cw1200_get_hw_type(u32 config_reg_val, int *major_revision)
@@ -489,9 +489,9 @@ int cw1200_load_firmware(struct cw1200_common *priv)
 	}
 
 	/* Enable interrupt signalling */
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 	ret = __cw1200_irq_enable(priv, 1);
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 	if (ret < 0)
 		goto unsubscribe;
 
@@ -518,8 +518,8 @@ out:
 
 unsubscribe:
 	/* Disable interrupt signalling */
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 	ret = __cw1200_irq_enable(priv, 0);
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 	return ret;
 }
diff --git a/drivers/net/wireless/cw1200/hwbus.h b/drivers/net/wireless/cw1200/hwbus.h
new file mode 100644
index 0000000..8b2fc83
--- /dev/null
+++ b/drivers/net/wireless/cw1200/hwbus.h
@@ -0,0 +1,33 @@
+/*
+ * Common hwbus abstraction layer interface for cw1200 wireless driver
+ *
+ * Copyright (c) 2010, ST-Ericsson
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef CW1200_HWBUS_H
+#define CW1200_HWBUS_H
+
+struct hwbus_priv;
+
+void cw1200_irq_handler(struct cw1200_common *priv);
+
+/* This MUST be wrapped with hwbus_ops->lock/unlock! */
+int __cw1200_irq_enable(struct cw1200_common *priv, int enable);
+
+struct hwbus_ops {
+	int (*hwbus_memcpy_fromio)(struct hwbus_priv *self, unsigned int addr,
+					void *dst, int count);
+	int (*hwbus_memcpy_toio)(struct hwbus_priv *self, unsigned int addr,
+					const void *src, int count);
+	void (*lock)(struct hwbus_priv *self);
+	void (*unlock)(struct hwbus_priv *self);
+	size_t (*align_size)(struct hwbus_priv *self, size_t size);
+	int (*power_mgmt)(struct hwbus_priv *self, bool suspend);
+};
+
+#endif /* CW1200_HWBUS_H */
diff --git a/drivers/net/wireless/cw1200/hwio.c b/drivers/net/wireless/cw1200/hwio.c
index 1af7b3d..142f45ef 100644
--- a/drivers/net/wireless/cw1200/hwio.c
+++ b/drivers/net/wireless/cw1200/hwio.c
@@ -18,7 +18,7 @@
 
 #include "cw1200.h"
 #include "hwio.h"
-#include "sbus.h"
+#include "hwbus.h"
 
  /* Sdio addr is 4*spi_addr */
 #define SPI_REG_ADDR_TO_SDIO(spi_reg_addr) ((spi_reg_addr) << 2)
@@ -46,7 +46,7 @@ static int __cw1200_reg_read(struct cw1200_common *priv, u16 addr,
 	addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
 	sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
 
-	return priv->sbus_ops->sbus_memcpy_fromio(priv->sbus_priv,
+	return priv->hwbus_ops->hwbus_memcpy_fromio(priv->hwbus_priv,
 						  sdio_reg_addr_17bit,
 						  buf, buf_len);
 }
@@ -61,7 +61,7 @@ static int __cw1200_reg_write(struct cw1200_common *priv, u16 addr,
 	addr_sdio = SPI_REG_ADDR_TO_SDIO(addr);
 	sdio_reg_addr_17bit = SDIO_ADDR17BIT(buf_id, 0, 0, addr_sdio);
 
-	return priv->sbus_ops->sbus_memcpy_toio(priv->sbus_priv,
+	return priv->hwbus_ops->hwbus_memcpy_toio(priv->hwbus_priv,
 						sdio_reg_addr_17bit,
 						buf, buf_len);
 }
@@ -100,9 +100,9 @@ int cw1200_reg_read(struct cw1200_common *priv, u16 addr, void *buf,
 			size_t buf_len)
 {
 	int ret;
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 	ret = __cw1200_reg_read(priv, addr, buf, buf_len, 0);
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 	return ret;
 }
 
@@ -110,9 +110,9 @@ int cw1200_reg_write(struct cw1200_common *priv, u16 addr, const void *buf,
 			size_t buf_len)
 {
 	int ret;
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 	ret = __cw1200_reg_write(priv, addr, buf, buf_len, 0);
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 	return ret;
 }
 
@@ -121,7 +121,7 @@ int cw1200_data_read(struct cw1200_common *priv, void *buf, size_t buf_len)
 	int ret, retry = 1;
 	int buf_id_rx = priv->buf_id_rx;
 
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 
 	while (retry <= MAX_RETRY) {
 		ret = __cw1200_reg_read(priv,
@@ -138,7 +138,7 @@ int cw1200_data_read(struct cw1200_common *priv, void *buf, size_t buf_len)
 		}
 	}
 
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 	return ret;
 }
 
@@ -148,7 +148,7 @@ int cw1200_data_write(struct cw1200_common *priv, const void *buf,
 	int ret, retry = 1;
 	int buf_id_tx = priv->buf_id_tx;
 
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 
 	while (retry <= MAX_RETRY) {
 		ret = __cw1200_reg_write(priv,
@@ -165,7 +165,7 @@ int cw1200_data_write(struct cw1200_common *priv, const void *buf,
 		}
 	}
 
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 	return ret;
 }
 
@@ -181,7 +181,7 @@ int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
 		goto out;
 	}
 
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 	/* Write address */
 	ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
 	if (ret < 0) {
@@ -230,7 +230,7 @@ int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
 	}
 
 out:
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 	return ret;
 }
 
@@ -244,7 +244,7 @@ int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
 		return -EINVAL;
 	}
 
-	priv->sbus_ops->lock(priv->sbus_priv);
+	priv->hwbus_ops->lock(priv->hwbus_priv);
 
 	/* Write address */
 	ret = __cw1200_reg_write_32(priv, ST90TDS_SRAM_BASE_ADDR_REG_ID, addr);
@@ -262,7 +262,7 @@ int cw1200_apb_write(struct cw1200_common *priv, u32 addr, const void *buf,
 	}
 
 out:
-	priv->sbus_ops->unlock(priv->sbus_priv);
+	priv->hwbus_ops->unlock(priv->hwbus_priv);
 	return ret;
 }
 
diff --git a/drivers/net/wireless/cw1200/main.c b/drivers/net/wireless/cw1200/main.c
index ef4b0b9..2ea1bad 100644
--- a/drivers/net/wireless/cw1200/main.c
+++ b/drivers/net/wireless/cw1200/main.c
@@ -31,7 +31,7 @@
 
 #include "cw1200.h"
 #include "txrx.h"
-#include "sbus.h"
+#include "hwbus.h"
 #include "fwio.h"
 #include "hwio.h"
 #include "bh.h"
@@ -528,8 +528,8 @@ u32 cw1200_dpll_from_clk(u16 clk_khz)
 	}
 }
 
-int cw1200_core_probe(const struct sbus_ops *sbus_ops,
-		      struct sbus_priv *sbus,
+int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
+		      struct hwbus_priv *hwbus,
 		      struct device *pdev,
 		      struct cw1200_common **core,
 		      int ref_clk, const u8 *macaddr,
@@ -556,8 +556,8 @@ int cw1200_core_probe(const struct sbus_ops *sbus_ops,
 	if (cw1200_sdd_path)
 		priv->sdd_path = cw1200_sdd_path;
 
-	priv->sbus_ops = sbus_ops;
-	priv->sbus_priv = sbus;
+	priv->hwbus_ops = hwbus_ops;
+	priv->hwbus_priv = hwbus;
 	priv->pdev = pdev;
 	SET_IEEE80211_DEV(priv->hw, pdev);
 
@@ -616,9 +616,9 @@ EXPORT_SYMBOL_GPL(cw1200_core_probe);
 void cw1200_core_release(struct cw1200_common *self)
 {
 	/* Disable device interrupts */
-	self->sbus_ops->lock(self->sbus_priv);
+	self->hwbus_ops->lock(self->hwbus_priv);
 	__cw1200_irq_enable(self, 0);
-	self->sbus_ops->unlock(self->sbus_priv);
+	self->hwbus_ops->unlock(self->hwbus_priv);
 
 	/* And then clean up */
 	cw1200_unregister_common(self->hw);
diff --git a/drivers/net/wireless/cw1200/pm.c b/drivers/net/wireless/cw1200/pm.c
index 79edfb9..b37abb9 100644
--- a/drivers/net/wireless/cw1200/pm.c
+++ b/drivers/net/wireless/cw1200/pm.c
@@ -15,7 +15,7 @@
 #include "pm.h"
 #include "sta.h"
 #include "bh.h"
-#include "sbus.h"
+#include "hwbus.h"
 
 #define CW1200_BEACON_SKIPPING_MULTIPLIER 3
 
@@ -264,7 +264,7 @@ int cw1200_wow_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	pm_state->suspend_state = state;
 
 	/* Enable IRQ wake */
-	ret = priv->sbus_ops->power_mgmt(priv->sbus_priv, true);
+	ret = priv->hwbus_ops->power_mgmt(priv->hwbus_priv, true);
 	if (ret) {
 		wiphy_err(priv->hw->wiphy,
 			  "PM request failed: %d. WoW is disabled.\n", ret);
@@ -313,7 +313,7 @@ int cw1200_wow_resume(struct ieee80211_hw *hw)
 	pm_state->suspend_state = NULL;
 
 	/* Disable IRQ wake */
-	priv->sbus_ops->power_mgmt(priv->sbus_priv, false);
+	priv->hwbus_ops->power_mgmt(priv->hwbus_priv, false);
 
 	/* Scan.lock must be released before BH is resumed other way
 	 * in case when BSS_LOST command arrived the processing of the
diff --git a/drivers/net/wireless/cw1200/sbus.h b/drivers/net/wireless/cw1200/sbus.h
deleted file mode 100644
index 603fd25..0000000
--- a/drivers/net/wireless/cw1200/sbus.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Common sbus abstraction layer interface for cw1200 wireless driver
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_SBUS_H
-#define CW1200_SBUS_H
-
-/*
- * sbus priv forward definition.
- * Implemented and instantiated in particular modules.
- */
-struct sbus_priv;
-
-void cw1200_irq_handler(struct cw1200_common *priv);
-
-/* This MUST be wrapped with sbus_ops->lock/unlock! */
-int __cw1200_irq_enable(struct cw1200_common *priv, int enable);
-
-struct sbus_ops {
-	int (*sbus_memcpy_fromio)(struct sbus_priv *self, unsigned int addr,
-					void *dst, int count);
-	int (*sbus_memcpy_toio)(struct sbus_priv *self, unsigned int addr,
-					const void *src, int count);
-	void (*lock)(struct sbus_priv *self);
-	void (*unlock)(struct sbus_priv *self);
-	size_t (*align_size)(struct sbus_priv *self, size_t size);
-	int (*power_mgmt)(struct sbus_priv *self, bool suspend);
-};
-
-#endif /* CW1200_SBUS_H */
-- 
cgit v0.10.2


From c992219825823cad5e11fab3854eb93df2e9ffa1 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Sun, 2 Jun 2013 09:53:01 -0400
Subject: cw1200: move platform_data header to correct location.

(As suggested by Arnd Bergmann)

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/cw1200_sagrad.c b/drivers/net/wireless/cw1200/cw1200_sagrad.c
index a5ada0e..14c2a18 100644
--- a/drivers/net/wireless/cw1200/cw1200_sagrad.c
+++ b/drivers/net/wireless/cw1200/cw1200_sagrad.c
@@ -10,7 +10,7 @@
  */
 
 #include <linux/module.h>
-#include <linux/cw1200_platform.h>
+#include <linux/platform_data/cw1200_platform.h>
 
 MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
 MODULE_DESCRIPTION("ST-Ericsson CW1200 Platform glue driver");
diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index 78c3bc5..9f25ec5 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -20,7 +20,7 @@
 
 #include "cw1200.h"
 #include "hwbus.h"
-#include <linux/cw1200_platform.h>
+#include <linux/platform_data/cw1200_platform.h>
 #include "hwio.h"
 
 MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index 75efe54..940e094 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -25,7 +25,7 @@
 
 #include "cw1200.h"
 #include "hwbus.h"
-#include <linux/cw1200_platform.h>
+#include <linux/platform_data/cw1200_platform.h>
 #include "hwio.h"
 
 MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
diff --git a/include/linux/cw1200_platform.h b/include/linux/cw1200_platform.h
deleted file mode 100644
index c168fa5..0000000
--- a/include/linux/cw1200_platform.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2011
- *
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
- * License terms: GNU General Public License (GPL) version 2
- */
-
-#ifndef CW1200_PLAT_H_INCLUDED
-#define CW1200_PLAT_H_INCLUDED
-
-struct cw1200_platform_data_spi {
-	u8 spi_bits_per_word;           /* REQUIRED */
-	u16 ref_clk;                    /* REQUIRED (in KHz) */
-
-	/* All others are optional */
-	bool have_5ghz;
-	const struct resource *reset;   /* GPIO to RSTn signal */
-	const struct resource *powerup; /* GPIO to POWERUP signal */
-	int (*power_ctrl)(const struct cw1200_platform_data_spi *pdata,
-			  bool enable); /* Control 3v3 / 1v8 supply */
-	int (*clk_ctrl)(const struct cw1200_platform_data_spi *pdata,
-			bool enable); /* Control CLK32K */
-	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
-	const char *sdd_file;  /* if NULL, will use default for detected hw type */
-};
-
-struct cw1200_platform_data_sdio {
-	u16 ref_clk;                    /* REQUIRED (in KHz) */
-
-	/* All others are optional */
-	const struct resource *irq;     /* if using GPIO for IRQ */
-	bool have_5ghz;
-	bool no_nptb;                   /* SDIO hardware does not support non-power-of-2-blocksizes */
-	const struct resource *reset;   /* GPIO to RSTn signal */
-	const struct resource *powerup; /* GPIO to POWERUP signal */
-	int (*power_ctrl)(const struct cw1200_platform_data_sdio *pdata,
-			  bool enable); /* Control 3v3 / 1v8 supply */
-	int (*clk_ctrl)(const struct cw1200_platform_data_sdio *pdata,
-			bool enable); /* Control CLK32K */
-	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
-	const char *sdd_file;  /* if NULL, will use default for detected hw type */
-};
-
-const void *cw1200_get_platform_data(void);
-
-#endif /* CW1200_PLAT_H_INCLUDED */
diff --git a/include/linux/platform_data/cw1200_platform.h b/include/linux/platform_data/cw1200_platform.h
new file mode 100644
index 0000000..c168fa5
--- /dev/null
+++ b/include/linux/platform_data/cw1200_platform.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#ifndef CW1200_PLAT_H_INCLUDED
+#define CW1200_PLAT_H_INCLUDED
+
+struct cw1200_platform_data_spi {
+	u8 spi_bits_per_word;           /* REQUIRED */
+	u16 ref_clk;                    /* REQUIRED (in KHz) */
+
+	/* All others are optional */
+	bool have_5ghz;
+	const struct resource *reset;   /* GPIO to RSTn signal */
+	const struct resource *powerup; /* GPIO to POWERUP signal */
+	int (*power_ctrl)(const struct cw1200_platform_data_spi *pdata,
+			  bool enable); /* Control 3v3 / 1v8 supply */
+	int (*clk_ctrl)(const struct cw1200_platform_data_spi *pdata,
+			bool enable); /* Control CLK32K */
+	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
+	const char *sdd_file;  /* if NULL, will use default for detected hw type */
+};
+
+struct cw1200_platform_data_sdio {
+	u16 ref_clk;                    /* REQUIRED (in KHz) */
+
+	/* All others are optional */
+	const struct resource *irq;     /* if using GPIO for IRQ */
+	bool have_5ghz;
+	bool no_nptb;                   /* SDIO hardware does not support non-power-of-2-blocksizes */
+	const struct resource *reset;   /* GPIO to RSTn signal */
+	const struct resource *powerup; /* GPIO to POWERUP signal */
+	int (*power_ctrl)(const struct cw1200_platform_data_sdio *pdata,
+			  bool enable); /* Control 3v3 / 1v8 supply */
+	int (*clk_ctrl)(const struct cw1200_platform_data_sdio *pdata,
+			bool enable); /* Control CLK32K */
+	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
+	const char *sdd_file;  /* if NULL, will use default for detected hw type */
+};
+
+const void *cw1200_get_platform_data(void);
+
+#endif /* CW1200_PLAT_H_INCLUDED */
-- 
cgit v0.10.2


From 7b19bc2ca92ddda8f8e128593a2d523092ab4b14 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Sun, 2 Jun 2013 09:53:02 -0400
Subject: cw1200: Reference correct 'powerup' GPIO signal.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index 9f25ec5..0a882ca 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -193,7 +193,7 @@ static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
 static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
 {
 	const struct resource *reset = pdata->reset;
-	const struct resource *powerup = pdata->reset;
+	const struct resource *powerup = pdata->powerup;
 
 	/* Ensure I/Os are pulled low */
 	if (reset) {
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index 940e094..da5d24c 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -287,7 +287,7 @@ static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
 static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
 {
 	const struct resource *reset = pdata->reset;
-	const struct resource *powerup = pdata->reset;
+	const struct resource *powerup = pdata->powerup;
 
 	/* Ensure I/Os are pulled low */
 	if (reset) {
-- 
cgit v0.10.2


From 6dd64a304eff76ca7dd41bf63df55efa965fa9ec Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Sun, 2 Jun 2013 09:53:03 -0400
Subject: cw1200: Replace use of 'struct resource' with 'int' for GPIO fields.

The only advantage of 'struct resource' is that it lets us assign names
as part of the platform data.  Unfortunately since we are using platform
data, we are already limited to a single instance of each driver,
rendering this moot.

So, replace the struct resources with ints, resulting in cleaner code.

This was based on a suggestion from Arnd Bergmann.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/cw1200_sagrad.c b/drivers/net/wireless/cw1200/cw1200_sagrad.c
index 14c2a18..3f884ac 100644
--- a/drivers/net/wireless/cw1200/cw1200_sagrad.c
+++ b/drivers/net/wireless/cw1200/cw1200_sagrad.c
@@ -21,29 +21,6 @@ MODULE_LICENSE("GPL");
 /* #define SAGRAD_1091_1098_EVK_SPI */
 
 #ifdef SAGRAD_1091_1098_EVK_SDIO
-#if 0
-static struct resource cw1200_href_resources[] = {
-	{
-		.start = 215,  /* fix me as appropriate */
-		.end = 215,    /* ditto */
-		.flags = IORESOURCE_IO,
-		.name = "cw1200_wlan_reset",
-	},
-	{
-		.start = 216,  /* fix me as appropriate */
-		.end = 216,    /* ditto */
-		.flags = IORESOURCE_IO,
-		.name = "cw1200_wlan_powerup",
-	},
-	{
-		.start = NOMADIK_GPIO_TO_IRQ(216), /* fix me as appropriate */
-		.end = NOMADIK_GPIO_TO_IRQ(216),   /* ditto */
-		.flags = IORESOURCE_IRQ,
-		.name = "cw1200_wlan_irq",
-	},
-};
-#endif
-
 static int cw1200_power_ctrl(const struct cw1200_platform_data_sdio *pdata,
 			     bool enable)
 {
@@ -68,9 +45,9 @@ static struct cw1200_platform_data_sdio cw1200_platform_data = {
 	.ref_clk = 38400,
 	.have_5ghz = false,
 #if 0
-	.reset = &cw1200_href_resources[0],
-	.powerup = &cw1200_href_resources[1],
-	.irq = &cw1200_href_resources[2],
+	.reset = GPIO_RF_RESET, /* Replace as appropriate */
+	.powerup = GPIO_RF_POWERUP, /* Replace as appropriate */
+	.irq = GPIO_TO_IRQ(GPIO_RF_IRQ), /* Replace as appropriate */
 #endif
 	.power_ctrl = cw1200_power_ctrl,
 	.clk_ctrl = cw1200_clk_ctrl,
@@ -80,22 +57,6 @@ static struct cw1200_platform_data_sdio cw1200_platform_data = {
 #endif
 
 #ifdef SAGRAD_1091_1098_EVK_SPI
-/* Note that this is an example of integrating into your board support file */
-static struct resource cw1200_href_resources[] = {
-	{
-		.start = GPIO_RF_RESET,
-		.end = GPIO_RF_RESET,
-		.flags = IORESOURCE_IO,
-		.name = "cw1200_wlan_reset",
-	},
-	{
-		.start = GPIO_RF_POWERUP,
-		.end = GPIO_RF_POWERUP,
-		.flags = IORESOURCE_IO,
-		.name = "cw1200_wlan_powerup",
-	},
-};
-
 static int cw1200_power_ctrl(const struct cw1200_platform_data_spi *pdata,
 			     bool enable)
 {
@@ -118,8 +79,8 @@ static int cw1200_clk_ctrl(const struct cw1200_platform_data_spi *pdata,
 static struct cw1200_platform_data_spi cw1200_platform_data = {
 	.ref_clk = 38400,
 	.spi_bits_per_word = 16,
-	.reset = &cw1200_href_resources[0],
-	.powerup = &cw1200_href_resources[1],
+	.reset = GPIO_RF_RESET, /* Replace as appropriate */
+	.powerup = GPIO_RF_POWERUP, /* Replace as appropriate */
 	.power_ctrl = cw1200_power_ctrl,
 	.clk_ctrl = cw1200_clk_ctrl,
 /*	.macaddr = ??? */
diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index 0a882ca..574cf72 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -105,7 +105,6 @@ static irqreturn_t cw1200_gpio_irq(int irq, void *dev_id)
 static int cw1200_request_irq(struct hwbus_priv *self)
 {
 	int ret;
-	const struct resource *irq = self->pdata->irq;
 	u8 cccr;
 
 	cccr = sdio_f0_readb(self->func, SDIO_CCCR_IENx, &ret);
@@ -122,15 +121,15 @@ static int cw1200_request_irq(struct hwbus_priv *self)
 	if (WARN_ON(ret))
 		goto err;
 
-	ret = enable_irq_wake(irq->start);
+	ret = enable_irq_wake(self->pdata->irq);
 	if (WARN_ON(ret))
 		goto err;
 
 	/* Request the IRQ */
-	ret =  request_threaded_irq(irq->start, cw1200_gpio_hardirq,
+	ret =  request_threaded_irq(self->pdata->irq, cw1200_gpio_hardirq,
 				    cw1200_gpio_irq,
 				    IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
-				    irq->name, self);
+				    "cw1200_wlan_irq", self);
 	if (WARN_ON(ret))
 		goto err;
 
@@ -162,8 +161,8 @@ static int cw1200_sdio_irq_unsubscribe(struct hwbus_priv *self)
 	pr_debug("SW IRQ unsubscribe\n");
 
 	if (self->pdata->irq) {
-		disable_irq_wake(self->pdata->irq->start);
-		free_irq(self->pdata->irq->start, self);
+		disable_irq_wake(self->pdata->irq);
+		free_irq(self->pdata->irq, self);
 	} else {
 		sdio_claim_host(self->func);
 		ret = sdio_release_irq(self->func);
@@ -174,12 +173,10 @@ static int cw1200_sdio_irq_unsubscribe(struct hwbus_priv *self)
 
 static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
 {
-	const struct resource *reset = pdata->reset;
-
-	if (reset) {
-		gpio_set_value(reset->start, 0);
+	if (pdata->reset) {
+		gpio_set_value(pdata->reset, 0);
 		msleep(30); /* Min is 2 * CLK32K cycles */
-		gpio_free(reset->start);
+		gpio_free(pdata->reset);
 	}
 
 	if (pdata->power_ctrl)
@@ -192,20 +189,17 @@ static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
 
 static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
 {
-	const struct resource *reset = pdata->reset;
-	const struct resource *powerup = pdata->powerup;
-
 	/* Ensure I/Os are pulled low */
-	if (reset) {
-		gpio_request(reset->start, reset->name);
-		gpio_direction_output(reset->start, 0);
+	if (pdata->reset) {
+		gpio_request(pdata->reset, "cw1200_wlan_reset");
+		gpio_direction_output(pdata->reset, 0);
 	}
-	if (powerup) {
-		gpio_request(powerup->start, powerup->name);
-		gpio_direction_output(powerup->start, 0);
+	if (pdata->powerup) {
+		gpio_request(pdata->powerup, "cw1200_wlan_powerup");
+		gpio_direction_output(pdata->powerup, 0);
 	}
-	if (reset || powerup)
-		msleep(50); /* Settle time */
+	if (pdata->reset || pdata->powerup)
+		msleep(10); /* Settle time? */
 
 	/* Enable 3v3 and 1v8 to hardware */
 	if (pdata->power_ctrl) {
@@ -225,13 +219,13 @@ static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
 	}
 
 	/* Enable POWERUP signal */
-	if (powerup) {
-		gpio_set_value(powerup->start, 1);
+	if (pdata->powerup) {
+		gpio_set_value(pdata->powerup, 1);
 		msleep(250); /* or more..? */
 	}
 	/* Enable RSTn signal */
-	if (reset) {
-		gpio_set_value(reset->start, 1);
+	if (pdata->reset) {
+		gpio_set_value(pdata->reset, 1);
 		msleep(50); /* Or more..? */
 	}
 	return 0;
@@ -252,7 +246,7 @@ static int cw1200_sdio_pm(struct hwbus_priv *self, bool suspend)
 	int ret = 0;
 
 	if (self->pdata->irq)
-		ret = irq_set_irq_wake(self->pdata->irq->start, suspend);
+		ret = irq_set_irq_wake(self->pdata->irq, suspend);
 	return ret;
 }
 
@@ -274,7 +268,7 @@ static int cw1200_sdio_probe(struct sdio_func *func,
 
 	pr_info("cw1200_wlan_sdio: Probe called\n");
 
-       /* We are only able to handle the wlan function */
+	/* We are only able to handle the wlan function */
 	if (func->num != 0x01)
 		return -ENODEV;
 
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index da5d24c..d8dc7c6 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -268,12 +268,10 @@ static int cw1200_spi_irq_unsubscribe(struct hwbus_priv *self)
 
 static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
 {
-	const struct resource *reset = pdata->reset;
-
-	if (reset) {
-		gpio_set_value(reset->start, 0);
+	if (pdata->reset) {
+		gpio_set_value(pdata->reset, 0);
 		msleep(30); /* Min is 2 * CLK32K cycles */
-		gpio_free(reset->start);
+		gpio_free(pdata->reset);
 	}
 
 	if (pdata->power_ctrl)
@@ -286,19 +284,16 @@ static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
 
 static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
 {
-	const struct resource *reset = pdata->reset;
-	const struct resource *powerup = pdata->powerup;
-
 	/* Ensure I/Os are pulled low */
-	if (reset) {
-		gpio_request(reset->start, reset->name);
-		gpio_direction_output(reset->start, 0);
+	if (pdata->reset) {
+		gpio_request(pdata->reset, "cw1200_wlan_reset");
+		gpio_direction_output(pdata->reset, 0);
 	}
-	if (powerup) {
-		gpio_request(powerup->start, powerup->name);
-		gpio_direction_output(powerup->start, 0);
+	if (pdata->powerup) {
+		gpio_request(pdata->powerup, "cw1200_wlan_powerup");
+		gpio_direction_output(pdata->powerup, 0);
 	}
-	if (reset || powerup)
+	if (pdata->reset || pdata->powerup)
 		msleep(10); /* Settle time? */
 
 	/* Enable 3v3 and 1v8 to hardware */
@@ -319,13 +314,13 @@ static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
 	}
 
 	/* Enable POWERUP signal */
-	if (powerup) {
-		gpio_set_value(powerup->start, 1);
+	if (pdata->powerup) {
+		gpio_set_value(pdata->powerup, 1);
 		msleep(250); /* or more..? */
 	}
 	/* Enable RSTn signal */
-	if (reset) {
-		gpio_set_value(reset->start, 1);
+	if (pdata->reset) {
+		gpio_set_value(pdata->reset, 1);
 		msleep(50); /* Or more..? */
 	}
 	return 0;
diff --git a/include/linux/platform_data/cw1200_platform.h b/include/linux/platform_data/cw1200_platform.h
index c168fa5..4454c16 100644
--- a/include/linux/platform_data/cw1200_platform.h
+++ b/include/linux/platform_data/cw1200_platform.h
@@ -14,8 +14,8 @@ struct cw1200_platform_data_spi {
 
 	/* All others are optional */
 	bool have_5ghz;
-	const struct resource *reset;   /* GPIO to RSTn signal */
-	const struct resource *powerup; /* GPIO to POWERUP signal */
+	int reset;                     /* GPIO to RSTn signal (0 disables) */
+	int powerup;                   /* GPIO to POWERUP signal (0 disables) */
 	int (*power_ctrl)(const struct cw1200_platform_data_spi *pdata,
 			  bool enable); /* Control 3v3 / 1v8 supply */
 	int (*clk_ctrl)(const struct cw1200_platform_data_spi *pdata,
@@ -28,11 +28,11 @@ struct cw1200_platform_data_sdio {
 	u16 ref_clk;                    /* REQUIRED (in KHz) */
 
 	/* All others are optional */
-	const struct resource *irq;     /* if using GPIO for IRQ */
 	bool have_5ghz;
-	bool no_nptb;                   /* SDIO hardware does not support non-power-of-2-blocksizes */
-	const struct resource *reset;   /* GPIO to RSTn signal */
-	const struct resource *powerup; /* GPIO to POWERUP signal */
+	bool no_nptb;       /* SDIO hardware does not support non-power-of-2-blocksizes */
+	int reset;          /* GPIO to RSTn signal (0 disables) */
+	int powerup;        /* GPIO to POWERUP signal (0 disables) */
+	int irq;            /* IRQ line or 0 to use SDIO IRQ */
 	int (*power_ctrl)(const struct cw1200_platform_data_sdio *pdata,
 			  bool enable); /* Control 3v3 / 1v8 supply */
 	int (*clk_ctrl)(const struct cw1200_platform_data_sdio *pdata,
-- 
cgit v0.10.2


From 7c0b6f49dbea0b09b1de8aa5c942af9c2ad8b54c Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Sun, 2 Jun 2013 11:35:31 -0400
Subject: cw1200: Rework SDIO platform support to prevent build problems.

Based on discussions with And Bergmann, this patch changes the SDIO
platform code to default to supporting the Sagrad devices, allowing for
it to be overridden in board setup code.  This renders the cw1200_sagrad
module suplerflous, so it is now removed.

It also moves the documentation that was in the cw1200_sagrad source to
the platform header.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/Kconfig b/drivers/net/wireless/cw1200/Kconfig
index 13e3611..7a585d4 100644
--- a/drivers/net/wireless/cw1200/Kconfig
+++ b/drivers/net/wireless/cw1200/Kconfig
@@ -13,20 +13,19 @@ config CW1200_WLAN_SDIO
 	depends on CW1200 && MMC
 	help
 	  Enable support for the CW1200 connected via an SDIO bus.
+	  By default this driver only supports the Sagrad SG901-1091/1098 EVK
+	  and similar designs that utilize a hardware reset circuit. To
+	  support different CW1200 SDIO designs you will need to override
+	  the default platform data by calling cw1200_sdio_set_platform_data()
+	  in your board setup file.
 
 config CW1200_WLAN_SPI
 	tristate "Support SPI platforms"
 	depends on CW1200 && SPI
 	help
-	  Enables support for the CW1200 connected via a SPI bus.
-
-config CW1200_WLAN_SAGRAD
-	tristate "Support Sagrad SG901-1091/1098 modules"
-	depends on CW1200_WLAN_SDIO
-	help
-	  This provides the platform data glue to support the
-	  Sagrad SG901-1091/1098 modules in their standard SDIO EVK.
-	  It also includes example SPI platform data.
+	  Enables support for the CW1200 connected via a SPI bus.  You will
+	  need to add appropriate platform data glue in your board setup
+	  file.
 
 menu "Driver debug features"
 	depends on CW1200 && DEBUG_FS
diff --git a/drivers/net/wireless/cw1200/Makefile b/drivers/net/wireless/cw1200/Makefile
index 1aa3682..bc6cbf9 100644
--- a/drivers/net/wireless/cw1200/Makefile
+++ b/drivers/net/wireless/cw1200/Makefile
@@ -16,9 +16,7 @@ cw1200_core-$(CONFIG_PM)	+= pm.o
 
 cw1200_wlan_sdio-y := cw1200_sdio.o
 cw1200_wlan_spi-y := cw1200_spi.o
-cw1200_wlan_sagrad-y := cw1200_sagrad.o
 
 obj-$(CONFIG_CW1200) += cw1200_core.o
 obj-$(CONFIG_CW1200_WLAN_SDIO) += cw1200_wlan_sdio.o
 obj-$(CONFIG_CW1200_WLAN_SPI) += cw1200_wlan_spi.o
-obj-$(CONFIG_CW1200_WLAN_SAGRAD) += cw1200_wlan_sagrad.o
diff --git a/drivers/net/wireless/cw1200/cw1200_sagrad.c b/drivers/net/wireless/cw1200/cw1200_sagrad.c
deleted file mode 100644
index 3f884ac..0000000
--- a/drivers/net/wireless/cw1200/cw1200_sagrad.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * Platform glue data for ST-Ericsson CW1200 driver
- *
- * Copyright (c) 2013, Sagrad, Inc
- * Author: Solomon Peachy <speachy@sagrad.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/platform_data/cw1200_platform.h>
-
-MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
-MODULE_DESCRIPTION("ST-Ericsson CW1200 Platform glue driver");
-MODULE_LICENSE("GPL");
-
-/* Define just one of these.  Feel free to customize as needed */
-#define SAGRAD_1091_1098_EVK_SDIO
-/* #define SAGRAD_1091_1098_EVK_SPI */
-
-#ifdef SAGRAD_1091_1098_EVK_SDIO
-static int cw1200_power_ctrl(const struct cw1200_platform_data_sdio *pdata,
-			     bool enable)
-{
-	/* Control 3v3 and 1v8 to hardware as appropriate */
-	/* Note this is not needed if it's controlled elsewhere or always on */
-
-	/* May require delay for power to stabilize */
-	return 0;
-}
-
-static int cw1200_clk_ctrl(const struct cw1200_platform_data_sdio *pdata,
-			   bool enable)
-{
-	/* Turn CLK_32K off and on as appropriate. */
-	/* Note this is not needed if it's always on */
-
-	/* May require delay for clock to stabilize */
-	return 0;
-}
-
-static struct cw1200_platform_data_sdio cw1200_platform_data = {
-	.ref_clk = 38400,
-	.have_5ghz = false,
-#if 0
-	.reset = GPIO_RF_RESET, /* Replace as appropriate */
-	.powerup = GPIO_RF_POWERUP, /* Replace as appropriate */
-	.irq = GPIO_TO_IRQ(GPIO_RF_IRQ), /* Replace as appropriate */
-#endif
-	.power_ctrl = cw1200_power_ctrl,
-	.clk_ctrl = cw1200_clk_ctrl,
-/*	.macaddr = ??? */
-	.sdd_file = "sdd_sagrad_1091_1098.bin",
-};
-#endif
-
-#ifdef SAGRAD_1091_1098_EVK_SPI
-static int cw1200_power_ctrl(const struct cw1200_platform_data_spi *pdata,
-			     bool enable)
-{
-	/* Control 3v3 and 1v8 to hardware as appropriate */
-	/* Note this is not needed if it's controlled elsewhere or always on */
-
-	/* May require delay for power to stabilize */
-	return 0;
-}
-static int cw1200_clk_ctrl(const struct cw1200_platform_data_spi *pdata,
-			   bool enable)
-{
-	/* Turn CLK_32K off and on as appropriate. */
-	/* Note this is not needed if it's always on */
-
-	/* May require delay for clock to stabilize */
-	return 0;
-}
-
-static struct cw1200_platform_data_spi cw1200_platform_data = {
-	.ref_clk = 38400,
-	.spi_bits_per_word = 16,
-	.reset = GPIO_RF_RESET, /* Replace as appropriate */
-	.powerup = GPIO_RF_POWERUP, /* Replace as appropriate */
-	.power_ctrl = cw1200_power_ctrl,
-	.clk_ctrl = cw1200_clk_ctrl,
-/*	.macaddr = ??? */
-	.sdd_file = "sdd_sagrad_1091_1098.bin",
-};
-static struct spi_board_info myboard_spi_devices[] __initdata = {
-	{
-		.modalias = "cw1200_wlan_spi",
-		.max_speed_hz = 10000000, /* 52MHz Max */
-		.bus_num = 0,
-		.irq = WIFI_IRQ,
-		.platform_data = &cw1200_platform_data,
-		.chip_select = 0,
-	},
-};
-#endif
-
-
-const void *cw1200_get_platform_data(void)
-{
-	return &cw1200_platform_data;
-}
-EXPORT_SYMBOL_GPL(cw1200_get_platform_data);
diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index 574cf72..4b3148e 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -29,6 +29,21 @@ MODULE_LICENSE("GPL");
 
 #define SDIO_BLOCK_SIZE (512)
 
+/* Default platform data for Sagrad modules */
+static struct cw1200_platform_data_sdio sagrad_109x_evk_platform_data = {
+	.ref_clk = 38400,
+	.have_5ghz = false,
+	.sdd_file = "sdd_sagrad_1091_1098.bin",
+};
+
+/* Allow platform data to be overridden */
+static struct cw1200_platform_data_sdio *global_plat_data = &sagrad_109x_evk_platform_data;
+
+void __init cw1200_sdio_set_platform_data(struct cw1200_platform_data_sdio *pdata)
+{
+	global_plat_data = pdata;
+}
+
 struct hwbus_priv {
 	struct sdio_func	*func;
 	struct cw1200_common	*core;
@@ -261,7 +276,7 @@ static struct hwbus_ops cw1200_sdio_hwbus_ops = {
 
 /* Probe Function to be called by SDIO stack when device is discovered */
 static int cw1200_sdio_probe(struct sdio_func *func,
-				       const struct sdio_device_id *id)
+			     const struct sdio_device_id *id)
 {
 	struct hwbus_priv *self;
 	int status;
@@ -280,7 +295,7 @@ static int cw1200_sdio_probe(struct sdio_func *func,
 
 	func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
 
-	self->pdata = cw1200_get_platform_data();
+	self->pdata = global_plat_data; /* FIXME */
 	self->func = func;
 	sdio_set_drvdata(func, self);
 	sdio_claim_host(func);
@@ -374,7 +389,8 @@ static int __init cw1200_sdio_init(void)
 	const struct cw1200_platform_data_sdio *pdata;
 	int ret;
 
-	pdata = cw1200_get_platform_data();
+	/* FIXME -- this won't support multiple devices */
+	pdata = global_plat_data;
 
 	if (cw1200_sdio_on(pdata)) {
 		ret = -1;
@@ -396,7 +412,9 @@ err:
 static void __exit cw1200_sdio_exit(void)
 {
 	const struct cw1200_platform_data_sdio *pdata;
-	pdata = cw1200_get_platform_data();
+
+	/* FIXME -- this won't support multiple devices */
+	pdata = global_plat_data;
 	sdio_unregister_driver(&sdio_driver);
 	cw1200_sdio_off(pdata);
 }
diff --git a/include/linux/platform_data/cw1200_platform.h b/include/linux/platform_data/cw1200_platform.h
index 4454c16..c6fbc3c 100644
--- a/include/linux/platform_data/cw1200_platform.h
+++ b/include/linux/platform_data/cw1200_platform.h
@@ -41,6 +41,41 @@ struct cw1200_platform_data_sdio {
 	const char *sdd_file;  /* if NULL, will use default for detected hw type */
 };
 
-const void *cw1200_get_platform_data(void);
+
+/* An example of SPI support in your board setup file:
+
+   static struct cw1200_platform_data_spi cw1200_platform_data = {
+       .ref_clk = 38400,
+       .spi_bits_per_word = 16,
+       .reset = GPIO_RF_RESET,
+       .powerup = GPIO_RF_POWERUP,
+       .macaddr = wifi_mac_addr,
+       .sdd_file = "sdd_sagrad_1091_1098.bin",
+  };
+  static struct spi_board_info myboard_spi_devices[] __initdata = {
+       {
+               .modalias = "cw1200_wlan_spi",
+               .max_speed_hz = 52000000,
+               .bus_num = 0,
+               .irq = WIFI_IRQ,
+               .platform_data = &cw1200_platform_data,
+               .chip_select = 0,
+       },
+  };
+
+ */
+
+/* An example of SDIO support in your board setup file:
+
+  static struct cw1200_platform_data_sdio my_cw1200_platform_data = {
+	.ref_clk = 38400,
+	.have_5ghz = false,
+	.sdd_file = "sdd_myplatform.bin",
+  };
+  cw1200_sdio_set_platform_data(&my_cw1200_platform_data);
+
+ */
+
+void __init cw1200_sdio_set_platform_data(struct cw1200_platform_data_sdio *pdata);
 
 #endif /* CW1200_PLAT_H_INCLUDED */
-- 
cgit v0.10.2


From 4da2a54a842db6921289e3e25b0739531a594dea Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Sun, 2 Jun 2013 11:35:32 -0400
Subject: cw1200: rename the cw1200 platform definition header

My previous patch just moved the file, but it also needed to be renamed
to conform to proper conventions.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index 4b3148e..bb1f405 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -20,7 +20,7 @@
 
 #include "cw1200.h"
 #include "hwbus.h"
-#include <linux/platform_data/cw1200_platform.h>
+#include <linux/platform_data/net-cw1200.h>
 #include "hwio.h"
 
 MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index d8dc7c6..e58f0a5 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -25,7 +25,7 @@
 
 #include "cw1200.h"
 #include "hwbus.h"
-#include <linux/platform_data/cw1200_platform.h>
+#include <linux/platform_data/net-cw1200.h>
 #include "hwio.h"
 
 MODULE_AUTHOR("Solomon Peachy <speachy@sagrad.com>");
diff --git a/include/linux/platform_data/cw1200_platform.h b/include/linux/platform_data/cw1200_platform.h
deleted file mode 100644
index c6fbc3c..0000000
--- a/include/linux/platform_data/cw1200_platform.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2011
- *
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
- * License terms: GNU General Public License (GPL) version 2
- */
-
-#ifndef CW1200_PLAT_H_INCLUDED
-#define CW1200_PLAT_H_INCLUDED
-
-struct cw1200_platform_data_spi {
-	u8 spi_bits_per_word;           /* REQUIRED */
-	u16 ref_clk;                    /* REQUIRED (in KHz) */
-
-	/* All others are optional */
-	bool have_5ghz;
-	int reset;                     /* GPIO to RSTn signal (0 disables) */
-	int powerup;                   /* GPIO to POWERUP signal (0 disables) */
-	int (*power_ctrl)(const struct cw1200_platform_data_spi *pdata,
-			  bool enable); /* Control 3v3 / 1v8 supply */
-	int (*clk_ctrl)(const struct cw1200_platform_data_spi *pdata,
-			bool enable); /* Control CLK32K */
-	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
-	const char *sdd_file;  /* if NULL, will use default for detected hw type */
-};
-
-struct cw1200_platform_data_sdio {
-	u16 ref_clk;                    /* REQUIRED (in KHz) */
-
-	/* All others are optional */
-	bool have_5ghz;
-	bool no_nptb;       /* SDIO hardware does not support non-power-of-2-blocksizes */
-	int reset;          /* GPIO to RSTn signal (0 disables) */
-	int powerup;        /* GPIO to POWERUP signal (0 disables) */
-	int irq;            /* IRQ line or 0 to use SDIO IRQ */
-	int (*power_ctrl)(const struct cw1200_platform_data_sdio *pdata,
-			  bool enable); /* Control 3v3 / 1v8 supply */
-	int (*clk_ctrl)(const struct cw1200_platform_data_sdio *pdata,
-			bool enable); /* Control CLK32K */
-	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
-	const char *sdd_file;  /* if NULL, will use default for detected hw type */
-};
-
-
-/* An example of SPI support in your board setup file:
-
-   static struct cw1200_platform_data_spi cw1200_platform_data = {
-       .ref_clk = 38400,
-       .spi_bits_per_word = 16,
-       .reset = GPIO_RF_RESET,
-       .powerup = GPIO_RF_POWERUP,
-       .macaddr = wifi_mac_addr,
-       .sdd_file = "sdd_sagrad_1091_1098.bin",
-  };
-  static struct spi_board_info myboard_spi_devices[] __initdata = {
-       {
-               .modalias = "cw1200_wlan_spi",
-               .max_speed_hz = 52000000,
-               .bus_num = 0,
-               .irq = WIFI_IRQ,
-               .platform_data = &cw1200_platform_data,
-               .chip_select = 0,
-       },
-  };
-
- */
-
-/* An example of SDIO support in your board setup file:
-
-  static struct cw1200_platform_data_sdio my_cw1200_platform_data = {
-	.ref_clk = 38400,
-	.have_5ghz = false,
-	.sdd_file = "sdd_myplatform.bin",
-  };
-  cw1200_sdio_set_platform_data(&my_cw1200_platform_data);
-
- */
-
-void __init cw1200_sdio_set_platform_data(struct cw1200_platform_data_sdio *pdata);
-
-#endif /* CW1200_PLAT_H_INCLUDED */
diff --git a/include/linux/platform_data/net-cw1200.h b/include/linux/platform_data/net-cw1200.h
new file mode 100644
index 0000000..c6fbc3c
--- /dev/null
+++ b/include/linux/platform_data/net-cw1200.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2011
+ *
+ * Author: Dmitry Tarnyagin <dmitry.tarnyagin@stericsson.com>
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#ifndef CW1200_PLAT_H_INCLUDED
+#define CW1200_PLAT_H_INCLUDED
+
+struct cw1200_platform_data_spi {
+	u8 spi_bits_per_word;           /* REQUIRED */
+	u16 ref_clk;                    /* REQUIRED (in KHz) */
+
+	/* All others are optional */
+	bool have_5ghz;
+	int reset;                     /* GPIO to RSTn signal (0 disables) */
+	int powerup;                   /* GPIO to POWERUP signal (0 disables) */
+	int (*power_ctrl)(const struct cw1200_platform_data_spi *pdata,
+			  bool enable); /* Control 3v3 / 1v8 supply */
+	int (*clk_ctrl)(const struct cw1200_platform_data_spi *pdata,
+			bool enable); /* Control CLK32K */
+	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
+	const char *sdd_file;  /* if NULL, will use default for detected hw type */
+};
+
+struct cw1200_platform_data_sdio {
+	u16 ref_clk;                    /* REQUIRED (in KHz) */
+
+	/* All others are optional */
+	bool have_5ghz;
+	bool no_nptb;       /* SDIO hardware does not support non-power-of-2-blocksizes */
+	int reset;          /* GPIO to RSTn signal (0 disables) */
+	int powerup;        /* GPIO to POWERUP signal (0 disables) */
+	int irq;            /* IRQ line or 0 to use SDIO IRQ */
+	int (*power_ctrl)(const struct cw1200_platform_data_sdio *pdata,
+			  bool enable); /* Control 3v3 / 1v8 supply */
+	int (*clk_ctrl)(const struct cw1200_platform_data_sdio *pdata,
+			bool enable); /* Control CLK32K */
+	const u8 *macaddr;  /* if NULL, use cw1200_mac_template module parameter */
+	const char *sdd_file;  /* if NULL, will use default for detected hw type */
+};
+
+
+/* An example of SPI support in your board setup file:
+
+   static struct cw1200_platform_data_spi cw1200_platform_data = {
+       .ref_clk = 38400,
+       .spi_bits_per_word = 16,
+       .reset = GPIO_RF_RESET,
+       .powerup = GPIO_RF_POWERUP,
+       .macaddr = wifi_mac_addr,
+       .sdd_file = "sdd_sagrad_1091_1098.bin",
+  };
+  static struct spi_board_info myboard_spi_devices[] __initdata = {
+       {
+               .modalias = "cw1200_wlan_spi",
+               .max_speed_hz = 52000000,
+               .bus_num = 0,
+               .irq = WIFI_IRQ,
+               .platform_data = &cw1200_platform_data,
+               .chip_select = 0,
+       },
+  };
+
+ */
+
+/* An example of SDIO support in your board setup file:
+
+  static struct cw1200_platform_data_sdio my_cw1200_platform_data = {
+	.ref_clk = 38400,
+	.have_5ghz = false,
+	.sdd_file = "sdd_myplatform.bin",
+  };
+  cw1200_sdio_set_platform_data(&my_cw1200_platform_data);
+
+ */
+
+void __init cw1200_sdio_set_platform_data(struct cw1200_platform_data_sdio *pdata);
+
+#endif /* CW1200_PLAT_H_INCLUDED */
-- 
cgit v0.10.2


From ec26bcc055994f7963f65197f8595f76291c6bff Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 28 May 2013 13:01:54 +0200
Subject: ath9k: advertise support for active monitor interfaces

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 0536d44..db483b4 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -778,6 +778,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || ath9k_modparam_nohwcrypt)
 		hw->flags |= IEEE80211_HW_MFP_CAPABLE;
 
+	hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
+
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_P2P_GO) |
 		BIT(NL80211_IFTYPE_P2P_CLIENT) |
-- 
cgit v0.10.2


From bda96e8c6a751d8f57a5564e18adf33f2a2d857e Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 30 May 2013 18:21:29 +0800
Subject: net, ipw2x00: remove redundant D0 power state set

Pci_enable_device() will set device power state to D0,
so it's no need to do it again in ipw2100_pci_init_one().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c
index 15920aa..f8ab193 100644
--- a/drivers/net/wireless/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/ipw2x00/ipw2100.c
@@ -6242,8 +6242,6 @@ static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
 	if ((val & 0x0000ff00) != 0)
 		pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
 
-	pci_set_power_state(pci_dev, PCI_D0);
-
 	if (!ipw2100_hw_is_adapter_in_system(dev)) {
 		printk(KERN_WARNING DRV_NAME
 		       "Device not found via register read.\n");
-- 
cgit v0.10.2


From 74a97755f2c2687207e3b1e9e77765b475f7e4e4 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 3 Jun 2013 09:19:23 +0530
Subject: ath9k: Return early for invalid rates

Process and update the internal RSSI average, which
is used by ANI, after verifying that the received
frame has valid rate information.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index b4b758d..865e043 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -955,11 +955,11 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
 	if (rx_stats->rs_more)
 		return 0;
 
-	ath9k_process_rssi(common, hw, hdr, rx_stats);
-
 	if (ath9k_process_rate(common, hw, rx_stats, rx_status))
 		return -EINVAL;
 
+	ath9k_process_rssi(common, hw, hdr, rx_stats);
+
 	rx_status->band = hw->conf.chandef.chan->band;
 	rx_status->freq = hw->conf.chandef.chan->center_freq;
 	rx_status->signal = ah->noise + rx_stats->rs_rssi;
-- 
cgit v0.10.2


From 846e438f5ffec6d5508478bba2b9245a1f358df3 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 3 Jun 2013 09:19:24 +0530
Subject: ath9k: Enable WoW only for AR9462

The only card with which WoW has been tested and verified is
AR9462. Do not enable it for all cards since WoW is really quirky
and needs to be tested properly with each chip.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_hw.c b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
index 830daa1..8dc2d08 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
@@ -38,10 +38,6 @@ static int ar9002_hw_init_mode_regs(struct ath_hw *ah)
 	else
 		INIT_INI_ARRAY(&ah->iniPcieSerdes,
 			   ar9280PciePhy_clkreq_always_on_L1_9280);
-#ifdef CONFIG_PM_SLEEP
-		INIT_INI_ARRAY(&ah->iniPcieSerdesWow,
-			       ar9280PciePhy_awow);
-#endif
 
 	if (AR_SREV_9287_11_OR_LATER(ah)) {
 		INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1);
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_initvals.h b/drivers/net/wireless/ath/ath9k/ar9002_initvals.h
index beb6162..4d18c66 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9002_initvals.h
@@ -925,20 +925,6 @@ static const u32 ar9280PciePhy_clkreq_always_on_L1_9280[][2] = {
 	{0x00004044, 0x00000000},
 };
 
-static const u32 ar9280PciePhy_awow[][2] = {
-	/* Addr      allmodes  */
-	{0x00004040, 0x9248fd00},
-	{0x00004040, 0x24924924},
-	{0x00004040, 0xa8000019},
-	{0x00004040, 0x13160820},
-	{0x00004040, 0xe5980560},
-	{0x00004040, 0xc01dcffd},
-	{0x00004040, 0x1aaabe41},
-	{0x00004040, 0xbe105554},
-	{0x00004040, 0x00043007},
-	{0x00004044, 0x00000000},
-};
-
 static const u32 ar9285Modes_9285_1_2[][5] = {
 	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
 	{0x00001030, 0x00000230, 0x00000460, 0x000002c0, 0x00000160},
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index a263ccc..6587d05 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2595,13 +2595,8 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 			pCap->hw_caps |= ATH9K_HW_CAP_RTT;
 	}
 
-	if (AR_SREV_9280_20_OR_LATER(ah)) {
-		pCap->hw_caps |= ATH9K_HW_WOW_DEVICE_CAPABLE |
-				 ATH9K_HW_WOW_PATTERN_MATCH_EXACT;
-
-		if (AR_SREV_9280(ah))
-			pCap->hw_caps |= ATH9K_HW_WOW_PATTERN_MATCH_DWORD;
-	}
+	if (AR_SREV_9462(ah))
+		pCap->hw_caps |= ATH9K_HW_WOW_DEVICE_CAPABLE;
 
 	if (AR_SREV_9300_20_OR_LATER(ah) &&
 	    ah->eep_ops->get_eeprom(ah, EEP_PAPRD))
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index ae30343..e3c3997 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -246,9 +246,7 @@ enum ath9k_hw_caps {
 	ATH9K_HW_CAP_MCI			= BIT(15),
 	ATH9K_HW_CAP_DFS			= BIT(16),
 	ATH9K_HW_WOW_DEVICE_CAPABLE		= BIT(17),
-	ATH9K_HW_WOW_PATTERN_MATCH_EXACT	= BIT(18),
-	ATH9K_HW_WOW_PATTERN_MATCH_DWORD	= BIT(19),
-	ATH9K_HW_CAP_PAPRD			= BIT(20),
+	ATH9K_HW_CAP_PAPRD			= BIT(18),
 };
 
 /*
@@ -882,9 +880,6 @@ struct ath_hw {
 	struct ar5416IniArray iniBank6;
 	struct ar5416IniArray iniAddac;
 	struct ar5416IniArray iniPcieSerdes;
-#ifdef CONFIG_PM_SLEEP
-	struct ar5416IniArray iniPcieSerdesWow;
-#endif
 	struct ar5416IniArray iniPcieSerdesLowPower;
 	struct ar5416IniArray iniModesFastClock;
 	struct ar5416IniArray iniAdditional;
@@ -1165,8 +1160,6 @@ static inline void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 }
 #endif
 
-
-
 #define ATH9K_CLOCK_RATE_CCK		22
 #define ATH9K_CLOCK_RATE_5GHZ_OFDM	40
 #define ATH9K_CLOCK_RATE_2GHZ_OFDM	44
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index db483b4..979bde3 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -800,21 +800,17 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 
 #ifdef CONFIG_PM_SLEEP
-
 	if ((ah->caps.hw_caps & ATH9K_HW_WOW_DEVICE_CAPABLE) &&
 	    device_can_wakeup(sc->dev)) {
-
 		hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
 					  WIPHY_WOWLAN_DISCONNECT;
 		hw->wiphy->wowlan.n_patterns = MAX_NUM_USER_PATTERN;
 		hw->wiphy->wowlan.pattern_min_len = 1;
 		hw->wiphy->wowlan.pattern_max_len = MAX_PATTERN_SIZE;
-
 	}
 
 	atomic_set(&sc->wow_sleep_proc_intr, -1);
 	atomic_set(&sc->wow_got_bmiss_intr, -1);
-
 #endif
 
 	hw->queues = 4;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index a1630d1..cc5a98b 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2003,7 +2003,6 @@ static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath9k_hw_capabilities *pcaps = &ah->caps;
 	int pattern_count = 0;
 	int i, byte_cnt;
 	u8 dis_deauth_pattern[MAX_PATTERN_SIZE];
@@ -2073,36 +2072,9 @@ static void ath9k_wow_add_disassoc_deauth_pattern(struct ath_softc *sc)
 
 	/* Create Disassociate pattern mask */
 
-	if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_EXACT) {
-
-		if (pcaps->hw_caps & ATH9K_HW_WOW_PATTERN_MATCH_DWORD) {
-			/*
-			 * for AR9280, because of hardware limitation, the
-			 * first 4 bytes have to be matched for all patterns.
-			 * the mask for disassociation and de-auth pattern
-			 * matching need to enable the first 4 bytes.
-			 * also the duration field needs to be filled.
-			 */
-			dis_deauth_mask[0] = 0xf0;
-
-			/*
-			 * fill in duration field
-			 FIXME: what is the exact value ?
-			 */
-			dis_deauth_pattern[2] = 0xff;
-			dis_deauth_pattern[3] = 0xff;
-		} else {
-			dis_deauth_mask[0] = 0xfe;
-		}
-
-		dis_deauth_mask[1] = 0x03;
-		dis_deauth_mask[2] = 0xc0;
-	} else {
-		dis_deauth_mask[0] = 0xef;
-		dis_deauth_mask[1] = 0x3f;
-		dis_deauth_mask[2] = 0x00;
-		dis_deauth_mask[3] = 0xfc;
-	}
+	dis_deauth_mask[0] = 0xfe;
+	dis_deauth_mask[1] = 0x03;
+	dis_deauth_mask[2] = 0xc0;
 
 	ath_dbg(common, WOW, "Adding disassoc/deauth patterns for WoW\n");
 
diff --git a/drivers/net/wireless/ath/ath9k/wow.c b/drivers/net/wireless/ath/ath9k/wow.c
index 9f85630..81c88dd 100644
--- a/drivers/net/wireless/ath/ath9k/wow.c
+++ b/drivers/net/wireless/ath/ath9k/wow.c
@@ -34,17 +34,6 @@ const char *ath9k_hw_wow_event_to_string(u32 wow_event)
 }
 EXPORT_SYMBOL(ath9k_hw_wow_event_to_string);
 
-static void ath9k_hw_config_serdes_wow_sleep(struct ath_hw *ah)
-{
-	int i;
-
-	for (i = 0; i < ah->iniPcieSerdesWow.ia_rows; i++)
-		REG_WRITE(ah, INI_RA(&ah->iniPcieSerdesWow, i, 0),
-			  INI_RA(&ah->iniPcieSerdesWow, i, 1));
-
-	usleep_range(1000, 1500);
-}
-
 static void ath9k_hw_set_powermode_wow_sleep(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
@@ -58,15 +47,8 @@ static void ath9k_hw_set_powermode_wow_sleep(struct ath_hw *ah)
 		ath_err(common, "Failed to stop Rx DMA in 10ms AR_CR=0x%08x AR_DIAG_SW=0x%08x\n",
 			REG_READ(ah, AR_CR), REG_READ(ah, AR_DIAG_SW));
 		return;
-	} else {
-		if (!AR_SREV_9300_20_OR_LATER(ah))
-			REG_WRITE(ah, AR_RXDP, 0x0);
 	}
 
-	/* AR9280 WoW has sleep issue, do not set it to sleep */
-	if (AR_SREV_9280_20(ah))
-		return;
-
 	REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_ON_INT);
 }
 
@@ -84,27 +66,16 @@ static void ath9k_wow_create_keep_alive_pattern(struct ath_hw *ah)
 
 	/* set the transmit buffer */
 	ctl[0] = (KAL_FRAME_LEN | (MAX_RATE_POWER << 16));
-
-	if (!(AR_SREV_9300_20_OR_LATER(ah)))
-		ctl[0] += (KAL_ANTENNA_MODE << 25);
-
 	ctl[1] = 0;
 	ctl[3] = 0xb;	/* OFDM_6M hardware value for this rate */
 	ctl[4] = 0;
 	ctl[7] = (ah->txchainmask) << 2;
-
-	if (AR_SREV_9300_20_OR_LATER(ah))
-		ctl[2] = 0xf << 16; /* tx_tries 0 */
-	else
-		ctl[2] = 0x7 << 16; /* tx_tries 0 */
-
+	ctl[2] = 0xf << 16; /* tx_tries 0 */
 
 	for (i = 0; i < KAL_NUM_DESC_WORDS; i++)
 		REG_WRITE(ah, (AR_WOW_KA_DESC_WORD2 + i * 4), ctl[i]);
 
-	/* for AR9300 family 13 descriptor words */
-	if (AR_SREV_9300_20_OR_LATER(ah))
-		REG_WRITE(ah, (AR_WOW_KA_DESC_WORD2 + i * 4), ctl[i]);
+	REG_WRITE(ah, (AR_WOW_KA_DESC_WORD2 + i * 4), ctl[i]);
 
 	data_word[0] = (KAL_FRAME_TYPE << 2) | (KAL_FRAME_SUB_TYPE << 4) |
 		       (KAL_TO_DS << 8) | (KAL_DURATION_ID << 16);
@@ -183,9 +154,6 @@ void ath9k_hw_wow_apply_pattern(struct ath_hw *ah, u8 *user_pattern,
 
 	ah->wow_event_mask |= BIT(pattern_count + AR_WOW_PAT_FOUND_SHIFT);
 
-	if (!AR_SREV_9285_12_OR_LATER(ah))
-		return;
-
 	if (pattern_count < 4) {
 		/* Pattern 0-3 uses AR_WOW_LENGTH1 register */
 		set = (pattern_len & AR_WOW_LENGTH_MAX) <<
@@ -207,6 +175,7 @@ u32 ath9k_hw_wow_wakeup(struct ath_hw *ah)
 {
 	u32 wow_status = 0;
 	u32 val = 0, rval;
+
 	/*
 	 * read the WoW status register to know
 	 * the wakeup reason
@@ -223,19 +192,14 @@ u32 ath9k_hw_wow_wakeup(struct ath_hw *ah)
 	val &= ah->wow_event_mask;
 
 	if (val) {
-
 		if (val & AR_WOW_MAGIC_PAT_FOUND)
 			wow_status |= AH_WOW_MAGIC_PATTERN_EN;
-
 		if (AR_WOW_PATTERN_FOUND(val))
 			wow_status |= AH_WOW_USER_PATTERN_EN;
-
 		if (val & AR_WOW_KEEP_ALIVE_FAIL)
 			wow_status |= AH_WOW_LINK_CHANGE;
-
 		if (val & AR_WOW_BEACON_FAIL)
 			wow_status |= AH_WOW_BEACON_MISS;
-
 	}
 
 	/*
@@ -255,17 +219,6 @@ u32 ath9k_hw_wow_wakeup(struct ath_hw *ah)
 		  AR_WOW_CLEAR_EVENTS(REG_READ(ah, AR_WOW_PATTERN)));
 
 	/*
-	 * tie reset register for AR9002 family of chipsets
-	 * NB: not tieing it back might have some repurcussions.
-	 */
-
-	if (!AR_SREV_9300_20_OR_LATER(ah)) {
-		REG_SET_BIT(ah, AR_WA, AR_WA_UNTIE_RESET_EN |
-			    AR_WA_POR_SHORT | AR_WA_RESET_EN);
-	}
-
-
-	/*
 	 * restore the beacon threshold to init value
 	 */
 	REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
@@ -277,8 +230,7 @@ u32 ath9k_hw_wow_wakeup(struct ath_hw *ah)
 	 * reset to our Chip's Power On Reset so that any PCI-E
 	 * reset from the bus will not reset our chip
 	 */
-
-	if (AR_SREV_9280_20_OR_LATER(ah) && ah->is_pciexpress)
+	if (ah->is_pciexpress)
 		ath9k_hw_configpcipowersave(ah, false);
 
 	ah->wow_event_mask = 0;
@@ -298,7 +250,6 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 	 * are from the 'pattern_enable' in this function and
 	 * 'pattern_count' of ath9k_hw_wow_apply_pattern()
 	 */
-
 	wow_event_mask = ah->wow_event_mask;
 
 	/*
@@ -306,50 +257,15 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 	 * WOW sleep, we do want the Reset from the PCI-E to disturb
 	 * our hw state
 	 */
-
 	if (ah->is_pciexpress) {
-
 		/*
 		 * we need to untie the internal POR (power-on-reset)
 		 * to the external PCI-E reset. We also need to tie
 		 * the PCI-E Phy reset to the PCI-E reset.
 		 */
-
-		if (AR_SREV_9300_20_OR_LATER(ah)) {
-			set = AR_WA_RESET_EN | AR_WA_POR_SHORT;
-			clr = AR_WA_UNTIE_RESET_EN | AR_WA_D3_L1_DISABLE;
-			REG_RMW(ah, AR_WA, set, clr);
-		} else {
-			if (AR_SREV_9285(ah) || AR_SREV_9287(ah))
-				set = AR9285_WA_DEFAULT;
-			else
-				set = AR9280_WA_DEFAULT;
-
-			/*
-			 * In AR9280 and AR9285, bit 14 in WA register
-			 * (disable L1) should only be set when device
-			 * enters D3 state and be cleared when device
-			 * comes back to D0
-			 */
-
-			if (ah->config.pcie_waen & AR_WA_D3_L1_DISABLE)
-				set |= AR_WA_D3_L1_DISABLE;
-
-			clr = AR_WA_UNTIE_RESET_EN;
-			set |= AR_WA_RESET_EN | AR_WA_POR_SHORT;
-			REG_RMW(ah, AR_WA, set, clr);
-
-			/*
-			 * for WoW sleep, we reprogram the SerDes so that the
-			 * PLL and CLK REQ are both enabled. This uses more
-			 * power but otherwise WoW sleep is unstable and the
-			 * chip may disappear.
-			 */
-
-			if (AR_SREV_9285_12_OR_LATER(ah))
-				ath9k_hw_config_serdes_wow_sleep(ah);
-
-		}
+		set = AR_WA_RESET_EN | AR_WA_POR_SHORT;
+		clr = AR_WA_UNTIE_RESET_EN | AR_WA_D3_L1_DISABLE;
+		REG_RMW(ah, AR_WA, set, clr);
 	}
 
 	/*
@@ -378,7 +294,6 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 	 * Program default values for pattern backoff, aifs/slot/KAL count,
 	 * beacon miss timeout, KAL timeout, etc.
 	 */
-
 	set = AR_WOW_BACK_OFF_SHIFT(AR_WOW_PAT_BACKOFF);
 	REG_SET_BIT(ah, AR_WOW_PATTERN, set);
 
@@ -398,7 +313,7 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 	/*
 	 * Keep alive timo in ms except AR9280
 	 */
-	if (!pattern_enable || AR_SREV_9280(ah))
+	if (!pattern_enable)
 		set = AR_WOW_KEEP_ALIVE_NEVER;
 	else
 		set = KAL_TIMEOUT * 32;
@@ -420,7 +335,6 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 	/*
 	 * Configure MAC WoW Registers
 	 */
-
 	set = 0;
 	/* Send keep alive timeouts anyway */
 	clr = AR_WOW_KEEP_ALIVE_AUTO_DIS;
@@ -430,16 +344,9 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 	else
 		set = AR_WOW_KEEP_ALIVE_FAIL_DIS;
 
-	/*
-	 * FIXME: For now disable keep alive frame
-	 * failure. This seems to sometimes trigger
-	 * unnecessary wake up with AR9485 chipsets.
-	 */
 	set = AR_WOW_KEEP_ALIVE_FAIL_DIS;
-
 	REG_RMW(ah, AR_WOW_KEEP_ALIVE, set, clr);
 
-
 	/*
 	 * we are relying on a bmiss failure. ensure we have
 	 * enough threshold to prevent false positives
@@ -473,14 +380,8 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 	set |= AR_WOW_MAC_INTR_EN;
 	REG_RMW(ah, AR_WOW_PATTERN, set, clr);
 
-	/*
-	 * For AR9285 and later version of chipsets
-	 * enable WoW pattern match for packets less
-	 * than 256 bytes for all patterns
-	 */
-	if (AR_SREV_9285_12_OR_LATER(ah))
-		REG_WRITE(ah, AR_WOW_PATTERN_MATCH_LT_256B,
-			  AR_WOW_PATTERN_SUPPORTED);
+	REG_WRITE(ah, AR_WOW_PATTERN_MATCH_LT_256B,
+		  AR_WOW_PATTERN_SUPPORTED);
 
 	/*
 	 * Set the power states appropriately and enable PME
@@ -488,43 +389,32 @@ void ath9k_hw_wow_enable(struct ath_hw *ah, u32 pattern_enable)
 	clr = 0;
 	set = AR_PMCTRL_PWR_STATE_D1D3 | AR_PMCTRL_HOST_PME_EN |
 	      AR_PMCTRL_PWR_PM_CTRL_ENA;
-	/*
-	 * This is needed for AR9300 chipsets to wake-up
-	 * the host.
-	 */
-	if (AR_SREV_9300_20_OR_LATER(ah))
-		clr = AR_PCIE_PM_CTRL_ENA;
 
+	clr = AR_PCIE_PM_CTRL_ENA;
 	REG_RMW(ah, AR_PCIE_PM_CTRL, set, clr);
 
-	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
-		/*
-		 * this is needed to prevent the chip waking up
-		 * the host within 3-4 seconds with certain
-		 * platform/BIOS. The fix is to enable
-		 * D1 & D3 to match original definition and
-		 * also match the OTP value. Anyway this
-		 * is more related to SW WOW.
-		 */
-		clr = AR_PMCTRL_PWR_STATE_D1D3;
-		REG_CLR_BIT(ah, AR_PCIE_PM_CTRL, clr);
-
-		set = AR_PMCTRL_PWR_STATE_D1D3_REAL;
-		REG_SET_BIT(ah, AR_PCIE_PM_CTRL, set);
-	}
-
+	/*
+	 * this is needed to prevent the chip waking up
+	 * the host within 3-4 seconds with certain
+	 * platform/BIOS. The fix is to enable
+	 * D1 & D3 to match original definition and
+	 * also match the OTP value. Anyway this
+	 * is more related to SW WOW.
+	 */
+	clr = AR_PMCTRL_PWR_STATE_D1D3;
+	REG_CLR_BIT(ah, AR_PCIE_PM_CTRL, clr);
 
+	set = AR_PMCTRL_PWR_STATE_D1D3_REAL;
+	REG_SET_BIT(ah, AR_PCIE_PM_CTRL, set);
 
 	REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
 
-	if (AR_SREV_9300_20_OR_LATER(ah)) {
-		/* to bring down WOW power low margin */
-		set = BIT(13);
-		REG_SET_BIT(ah, AR_PCIE_PHY_REG3, set);
-		/* HW WoW */
-		clr = BIT(5);
-		REG_CLR_BIT(ah, AR_PCU_MISC_MODE3, clr);
-	}
+	/* to bring down WOW power low margin */
+	set = BIT(13);
+	REG_SET_BIT(ah, AR_PCIE_PHY_REG3, set);
+	/* HW WoW */
+	clr = BIT(5);
+	REG_CLR_BIT(ah, AR_PCU_MISC_MODE3, clr);
 
 	ath9k_hw_set_powermode_wow_sleep(ah);
 	ah->wow_event_mask = wow_event_mask;
-- 
cgit v0.10.2


From 380013fc9442f65d5b898fc168e9994049ea2937 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 3 Jun 2013 09:19:25 +0530
Subject: ath9k: Remove unused structure ath_dbg_bb_mac_samp

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 62da19c..9719378 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -251,45 +251,6 @@ struct ath_stats {
 	u32 reset[__RESET_TYPE_MAX];
 };
 
-#define ATH_DBG_MAX_SAMPLES	10
-struct ath_dbg_bb_mac_samp {
-	u32 dma_dbg_reg_vals[ATH9K_NUM_DMA_DEBUG_REGS];
-	u32 pcu_obs, pcu_cr, noise;
-	struct {
-		u64 jiffies;
-		int8_t rssi_ctl0;
-		int8_t rssi_ctl1;
-		int8_t rssi_ctl2;
-		int8_t rssi_ext0;
-		int8_t rssi_ext1;
-		int8_t rssi_ext2;
-		int8_t rssi;
-		bool isok;
-		u8 rts_fail_cnt;
-		u8 data_fail_cnt;
-		u8 rateindex;
-		u8 qid;
-		u8 tid;
-		u32 ba_low;
-		u32 ba_high;
-	} ts[ATH_DBG_MAX_SAMPLES];
-	struct {
-		u64 jiffies;
-		int8_t rssi_ctl0;
-		int8_t rssi_ctl1;
-		int8_t rssi_ctl2;
-		int8_t rssi_ext0;
-		int8_t rssi_ext1;
-		int8_t rssi_ext2;
-		int8_t rssi;
-		bool is_mybeacon;
-		u8 antenna;
-		u8 rate;
-	} rs[ATH_DBG_MAX_SAMPLES];
-	struct ath_cycle_counters cc;
-	struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS];
-};
-
 struct ath9k_debug {
 	struct dentry *debugfs_phy;
 	u32 regidx;
-- 
cgit v0.10.2


From e323300d9741d44e6543ece3659671742f93acba Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 3 Jun 2013 09:19:26 +0530
Subject: ath9k: Simplify ANI initialization

The check "enable_ani" is not required since it is always
set to true and the logic for disabling/enabling ANI via
debugfs is done at a higher layer.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index 7ecd40f..734e72d 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -118,7 +118,7 @@ static void ath9k_ani_restart(struct ath_hw *ah)
 {
 	struct ar5416AniState *aniState;
 
-	if (!DO_ANI(ah))
+	if (!ah->curchan)
 		return;
 
 	aniState = &ah->curchan->ani;
@@ -195,7 +195,7 @@ static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hw *ah)
 {
 	struct ar5416AniState *aniState;
 
-	if (!DO_ANI(ah))
+	if (!ah->curchan)
 		return;
 
 	aniState = &ah->curchan->ani;
@@ -251,7 +251,7 @@ static void ath9k_hw_ani_cck_err_trigger(struct ath_hw *ah)
 {
 	struct ar5416AniState *aniState;
 
-	if (!DO_ANI(ah))
+	if (!ah->curchan)
 		return;
 
 	aniState = &ah->curchan->ani;
@@ -297,7 +297,7 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
 	struct ath_common *common = ath9k_hw_common(ah);
 	int ofdm_nil, cck_nil;
 
-	if (!DO_ANI(ah))
+	if (!ah->curchan)
 		return;
 
 	BUG_ON(aniState == NULL);
@@ -415,7 +415,7 @@ void ath9k_hw_ani_monitor(struct ath_hw *ah, struct ath9k_channel *chan)
 	struct ath_common *common = ath9k_hw_common(ah);
 	u32 ofdmPhyErrRate, cckPhyErrRate;
 
-	if (!DO_ANI(ah))
+	if (!ah->curchan)
 		return;
 
 	aniState = &ah->curchan->ani;
@@ -524,9 +524,6 @@ void ath9k_hw_ani_init(struct ath_hw *ah)
 	ah->aniperiod = ATH9K_ANI_PERIOD;
 	ah->config.ani_poll_interval = ATH9K_ANI_POLLINTERVAL;
 
-	if (ah->config.enable_ani)
-		ah->proc_phyerr |= HAL_PROCESS_ANI;
-
 	ath9k_ani_restart(ah);
 	ath9k_enable_mib_counters(ah);
 }
diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index dddb136..07079f2 100644
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -17,10 +17,6 @@
 #ifndef ANI_H
 #define ANI_H
 
-#define HAL_PROCESS_ANI           0x00000001
-
-#define DO_ANI(ah) (((ah)->proc_phyerr & HAL_PROCESS_ANI) && ah->curchan)
-
 #define BEACON_RSSI(ahp) (ahp->stats.avgbrssi)
 
 /* units are errors per second */
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 2a67b57..34869c2 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -814,8 +814,7 @@ void ath9k_htc_ani_work(struct work_struct *work)
 	}
 
 	/* Verify whether we must check ANI */
-	if (ah->config.enable_ani &&
-	    (timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
+	if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
 		aniflag = true;
 		common->ani.checkani_timer = timestamp;
 	}
@@ -845,8 +844,7 @@ set_timer:
 	* short calibration and long calibration.
 	*/
 	cal_interval = ATH_LONG_CALINTERVAL;
-	if (ah->config.enable_ani)
-		cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
+	cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
 	if (!common->ani.caldone)
 		cal_interval = min(cal_interval, (u32)short_cal_interval);
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 6587d05..a13f6ce 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -452,7 +452,6 @@ static void ath9k_hw_init_config(struct ath_hw *ah)
 	ah->config.pcie_clock_req = 0;
 	ah->config.pcie_waen = 0;
 	ah->config.analog_shiftreg = 1;
-	ah->config.enable_ani = true;
 
 	for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
 		ah->config.spurchans[i][0] = AR_NO_SPUR;
@@ -549,8 +548,7 @@ static int ath9k_hw_post_init(struct ath_hw *ah)
 		ah->eep_ops->get_eeprom_ver(ah),
 		ah->eep_ops->get_eeprom_rev(ah));
 
-	if (ah->config.enable_ani)
-		ath9k_hw_ani_init(ah);
+	ath9k_hw_ani_init(ah);
 
 	return 0;
 }
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index e3c3997..301b19e 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -289,7 +289,6 @@ struct ath9k_ops_config {
 	u32 ofdm_trig_high;
 	u32 cck_trig_high;
 	u32 cck_trig_low;
-	u32 enable_ani;
 	u32 enable_paprd;
 	int serialize_regmode;
 	bool rx_intr_mitigation;
@@ -852,7 +851,6 @@ struct ath_hw {
 	u32 globaltxtimeout;
 
 	/* ANI */
-	u32 proc_phyerr;
 	u32 aniperiod;
 	enum ath9k_ani_cmd ani_function;
 	u32 ani_skip_count;
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index cc422a4..fff5d3c 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -390,9 +390,7 @@ void ath_ani_calibrate(unsigned long data)
 	}
 
 	/* Verify whether we must check ANI */
-	if (sc->sc_ah->config.enable_ani
-	    && (timestamp - common->ani.checkani_timer) >=
-	    ah->config.ani_poll_interval) {
+	if ((timestamp - common->ani.checkani_timer) >= ah->config.ani_poll_interval) {
 		aniflag = true;
 		common->ani.checkani_timer = timestamp;
 	}
@@ -427,9 +425,7 @@ set_timer:
 	* short calibration and long calibration.
 	*/
 	cal_interval = ATH_LONG_CALINTERVAL;
-	if (sc->sc_ah->config.enable_ani)
-		cal_interval = min(cal_interval,
-				   (u32)ah->config.ani_poll_interval);
+	cal_interval = min(cal_interval, (u32)ah->config.ani_poll_interval);
 	if (!common->ani.caldone)
 		cal_interval = min(cal_interval, (u32)short_cal_interval);
 
-- 
cgit v0.10.2


From 4f4395c692fd74f6ebfb99892e5da3842f70d4c3 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 3 Jun 2013 09:19:27 +0530
Subject: ath9k: Set ofdmWeakSigDetect directly

The macros ATH9K_ANI_USE_OFDM_WEAK_SIG can be removed.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index 734e72d..ba0bad6 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -505,14 +505,10 @@ void ath9k_hw_ani_init(struct ath_hw *ah)
 		struct ar5416AniState *ani = &chan->ani;
 
 		ani->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
-
 		ani->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
-
 		ani->mrcCCK = AR_SREV_9300_20_OR_LATER(ah) ? true : false;
-
 		ani->ofdmsTurn = true;
-
-		ani->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG;
+		ani->ofdmWeakSigDetect = true;
 		ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL;
 		ani->ofdmNoiseImmunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL;
 	}
diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index 07079f2..c585e05 100644
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -34,11 +34,7 @@
 #define ATH9K_ANI_CCK_TRIG_LOW            300
 
 #define ATH9K_ANI_NOISE_IMMUNE_LVL        4
-#define ATH9K_ANI_USE_OFDM_WEAK_SIG       true
-#define ATH9K_ANI_CCK_WEAK_SIG_THR        false
-
 #define ATH9K_ANI_SPUR_IMMUNE_LVL         3
-
 #define ATH9K_ANI_FIRSTEP_LVL             2
 
 #define ATH9K_ANI_RSSI_THR_HIGH           40
@@ -107,7 +103,7 @@ struct ar5416AniState {
 	u8 mrcCCK;
 	u8 spurImmunityLevel;
 	u8 firstepLevel;
-	u8 ofdmWeakSigDetect;
+	bool ofdmWeakSigDetect;
 	u32 listenTime;
 	u32 ofdmPhyErrCount;
 	u32 cckPhyErrCount;
diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index 391da5a..92b79a2 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -1251,7 +1251,7 @@ static void ar5008_hw_ani_cache_ini_regs(struct ath_hw *ah)
 	/* these levels just got reset to defaults by the INI */
 	aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
 	aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
-	aniState->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG;
+	aniState->ofdmWeakSigDetect = true;
 	aniState->mrcCCK = false; /* not available on pre AR9003 */
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 2bf6548..94b22cb 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1213,7 +1213,7 @@ static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
 	/* these levels just got reset to defaults by the INI */
 	aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
 	aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
-	aniState->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG;
+	aniState->ofdmWeakSigDetect = true;
 	aniState->mrcCCK = true;
 }
 
-- 
cgit v0.10.2


From 6e4d291eec82c682d82d02cd275a6ec511f9b203 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 3 Jun 2013 09:19:28 +0530
Subject: ath9k: Print ANI statistics in debugfs

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index c585e05..78b9fa9 100644
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -111,8 +111,6 @@ struct ar5416AniState {
 };
 
 struct ar5416Stats {
-	u32 ast_ani_niup;
-	u32 ast_ani_nidown;
 	u32 ast_ani_spurup;
 	u32 ast_ani_spurdown;
 	u32 ast_ani_ofdmon;
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index fc96ad3..7852f6e 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -173,25 +173,69 @@ static const struct file_operations fops_rx_chainmask = {
 	.llseek = default_llseek,
 };
 
-static ssize_t read_file_disable_ani(struct file *file, char __user *user_buf,
+static ssize_t read_file_ani(struct file *file, char __user *user_buf,
 			     size_t count, loff_t *ppos)
 {
 	struct ath_softc *sc = file->private_data;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-	char buf[32];
-	unsigned int len;
+	struct ath_hw *ah = sc->sc_ah;
+	unsigned int len = 0, size = 1024;
+	ssize_t retval = 0;
+	char *buf;
 
-	len = sprintf(buf, "%d\n", common->disable_ani);
-	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	buf = kzalloc(size, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	if (common->disable_ani) {
+		len += snprintf(buf + len, size - len, "%s: %s\n",
+				"ANI", "DISABLED");
+		goto exit;
+	}
+
+	len += snprintf(buf + len, size - len, "%15s: %s\n",
+			"ANI", "ENABLED");
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"ANI RESET", ah->stats.ast_ani_reset);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"SPUR UP", ah->stats.ast_ani_spurup);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"SPUR DOWN", ah->stats.ast_ani_spurup);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"OFDM WS-DET ON", ah->stats.ast_ani_ofdmon);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"MRC-CCK ON", ah->stats.ast_ani_ccklow);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"MRC-CCK OFF", ah->stats.ast_ani_cckhigh);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"FIR-STEP UP", ah->stats.ast_ani_stepup);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"FIR-STEP DOWN", ah->stats.ast_ani_stepdown);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"OFDM ERRORS", ah->stats.ast_ani_ofdmerrs);
+	len += snprintf(buf + len, size - len, "%15s: %u\n",
+			"CCK ERRORS", ah->stats.ast_ani_cckerrs);
+exit:
+	if (len > size)
+		len = size;
+
+	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	kfree(buf);
+
+	return retval;
 }
 
-static ssize_t write_file_disable_ani(struct file *file,
-				      const char __user *user_buf,
-				      size_t count, loff_t *ppos)
+static ssize_t write_file_ani(struct file *file,
+			      const char __user *user_buf,
+			      size_t count, loff_t *ppos)
 {
 	struct ath_softc *sc = file->private_data;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-	unsigned long disable_ani;
+	unsigned long ani;
 	char buf[32];
 	ssize_t len;
 
@@ -200,12 +244,15 @@ static ssize_t write_file_disable_ani(struct file *file,
 		return -EFAULT;
 
 	buf[len] = '\0';
-	if (strict_strtoul(buf, 0, &disable_ani))
+	if (strict_strtoul(buf, 0, &ani))
+		return -EINVAL;
+
+	if (ani < 0 || ani > 1)
 		return -EINVAL;
 
-	common->disable_ani = !!disable_ani;
+	common->disable_ani = !ani;
 
-	if (disable_ani) {
+	if (common->disable_ani) {
 		clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);
 		ath_stop_ani(sc);
 	} else {
@@ -215,9 +262,9 @@ static ssize_t write_file_disable_ani(struct file *file,
 	return count;
 }
 
-static const struct file_operations fops_disable_ani = {
-	.read = read_file_disable_ani,
-	.write = write_file_disable_ani,
+static const struct file_operations fops_ani = {
+	.read = read_file_ani,
+	.write = write_file_ani,
 	.open = simple_open,
 	.owner = THIS_MODULE,
 	.llseek = default_llseek,
@@ -1719,8 +1766,8 @@ int ath9k_init_debug(struct ath_hw *ah)
 			    sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
 	debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
 			    sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
-	debugfs_create_file("disable_ani", S_IRUSR | S_IWUSR,
-			    sc->debug.debugfs_phy, sc, &fops_disable_ani);
+	debugfs_create_file("ani", S_IRUSR | S_IWUSR,
+			    sc->debug.debugfs_phy, sc, &fops_ani);
 	debugfs_create_bool("paprd", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
 			    &sc->sc_ah->config.enable_paprd);
 	debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
-- 
cgit v0.10.2


From c24bd3620c50cc8f1d13935c95003f41339a748d Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 3 Jun 2013 09:19:29 +0530
Subject: ath9k: Do not maintain ANI state per-channel

ANI state can be maintained globally instead of per-channel.
This reduces memory usage and since default values are used
during a scan run, per-channel state is not required.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index ba0bad6..e91725b 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -121,7 +121,7 @@ static void ath9k_ani_restart(struct ath_hw *ah)
 	if (!ah->curchan)
 		return;
 
-	aniState = &ah->curchan->ani;
+	aniState = &ah->ani;
 	aniState->listenTime = 0;
 
 	ENABLE_REGWRITE_BUFFER(ah);
@@ -143,7 +143,7 @@ static void ath9k_ani_restart(struct ath_hw *ah)
 static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
 				  bool scan)
 {
-	struct ar5416AniState *aniState = &ah->curchan->ani;
+	struct ar5416AniState *aniState = &ah->ani;
 	struct ath_common *common = ath9k_hw_common(ah);
 	const struct ani_ofdm_level_entry *entry_ofdm;
 	const struct ani_cck_level_entry *entry_cck;
@@ -198,7 +198,7 @@ static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hw *ah)
 	if (!ah->curchan)
 		return;
 
-	aniState = &ah->curchan->ani;
+	aniState = &ah->ani;
 
 	if (aniState->ofdmNoiseImmunityLevel < ATH9K_ANI_OFDM_MAX_LEVEL)
 		ath9k_hw_set_ofdm_nil(ah, aniState->ofdmNoiseImmunityLevel + 1, false);
@@ -210,7 +210,7 @@ static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hw *ah)
 static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel,
 				 bool scan)
 {
-	struct ar5416AniState *aniState = &ah->curchan->ani;
+	struct ar5416AniState *aniState = &ah->ani;
 	struct ath_common *common = ath9k_hw_common(ah);
 	const struct ani_ofdm_level_entry *entry_ofdm;
 	const struct ani_cck_level_entry *entry_cck;
@@ -254,7 +254,7 @@ static void ath9k_hw_ani_cck_err_trigger(struct ath_hw *ah)
 	if (!ah->curchan)
 		return;
 
-	aniState = &ah->curchan->ani;
+	aniState = &ah->ani;
 
 	if (aniState->cckNoiseImmunityLevel < ATH9K_ANI_CCK_MAX_LEVEL)
 		ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel + 1,
@@ -269,7 +269,7 @@ static void ath9k_hw_ani_lower_immunity(struct ath_hw *ah)
 {
 	struct ar5416AniState *aniState;
 
-	aniState = &ah->curchan->ani;
+	aniState = &ah->ani;
 
 	/* lower OFDM noise immunity */
 	if (aniState->ofdmNoiseImmunityLevel > 0 &&
@@ -292,7 +292,7 @@ static void ath9k_hw_ani_lower_immunity(struct ath_hw *ah)
  */
 void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
 {
-	struct ar5416AniState *aniState = &ah->curchan->ani;
+	struct ar5416AniState *aniState = &ah->ani;
 	struct ath9k_channel *chan = ah->curchan;
 	struct ath_common *common = ath9k_hw_common(ah);
 	int ofdm_nil, cck_nil;
@@ -380,7 +380,7 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
 static bool ath9k_hw_ani_read_counters(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ar5416AniState *aniState = &ah->curchan->ani;
+	struct ar5416AniState *aniState = &ah->ani;
 	u32 phyCnt1, phyCnt2;
 	int32_t listenTime;
 
@@ -418,7 +418,7 @@ void ath9k_hw_ani_monitor(struct ath_hw *ah, struct ath9k_channel *chan)
 	if (!ah->curchan)
 		return;
 
-	aniState = &ah->curchan->ani;
+	aniState = &ah->ani;
 	if (!ath9k_hw_ani_read_counters(ah))
 		return;
 
@@ -490,28 +490,22 @@ EXPORT_SYMBOL(ath9k_hw_disable_mib_counters);
 void ath9k_hw_ani_init(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	int i;
+	struct ar5416AniState *ani = &ah->ani;
 
 	ath_dbg(common, ANI, "Initialize ANI\n");
 
 	ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
 	ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW;
-
 	ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH;
 	ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW;
 
-	for (i = 0; i < ARRAY_SIZE(ah->channels); i++) {
-		struct ath9k_channel *chan = &ah->channels[i];
-		struct ar5416AniState *ani = &chan->ani;
-
-		ani->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
-		ani->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
-		ani->mrcCCK = AR_SREV_9300_20_OR_LATER(ah) ? true : false;
-		ani->ofdmsTurn = true;
-		ani->ofdmWeakSigDetect = true;
-		ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL;
-		ani->ofdmNoiseImmunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL;
-	}
+	ani->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
+	ani->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
+	ani->mrcCCK = AR_SREV_9300_20_OR_LATER(ah) ? true : false;
+	ani->ofdmsTurn = true;
+	ani->ofdmWeakSigDetect = true;
+	ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL;
+	ani->ofdmNoiseImmunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL;
 
 	/*
 	 * since we expect some ongoing maintenance on the tables, let's sanity
diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index 92b79a2..d1acfe9 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -931,7 +931,7 @@ static bool ar5008_hw_ani_control_new(struct ath_hw *ah,
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath9k_channel *chan = ah->curchan;
-	struct ar5416AniState *aniState = &chan->ani;
+	struct ar5416AniState *aniState = &ah->ani;
 	s32 value, value2;
 
 	switch (cmd & ah->ani_function) {
@@ -1207,7 +1207,7 @@ static void ar5008_hw_ani_cache_ini_regs(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath9k_channel *chan = ah->curchan;
-	struct ar5416AniState *aniState = &chan->ani;
+	struct ar5416AniState *aniState = &ah->ani;
 	struct ath9k_ani_default *iniDef;
 	u32 val;
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 94b22cb..0d05350 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -904,7 +904,7 @@ static bool ar9003_hw_ani_control(struct ath_hw *ah,
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath9k_channel *chan = ah->curchan;
-	struct ar5416AniState *aniState = &chan->ani;
+	struct ar5416AniState *aniState = &ah->ani;
 	s32 value, value2;
 
 	switch (cmd & ah->ani_function) {
@@ -1172,7 +1172,7 @@ static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
 	struct ath9k_ani_default *iniDef;
 	u32 val;
 
-	aniState = &ah->curchan->ani;
+	aniState = &ah->ani;
 	iniDef = &aniState->iniDef;
 
 	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 301b19e..7d259b7 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -420,7 +420,6 @@ struct ath9k_hw_cal_data {
 
 struct ath9k_channel {
 	struct ieee80211_channel *chan;
-	struct ar5416AniState ani;
 	u16 channel;
 	u32 channelFlags;
 	u32 chanmode;
@@ -854,6 +853,7 @@ struct ath_hw {
 	u32 aniperiod;
 	enum ath9k_ani_cmd ani_function;
 	u32 ani_skip_count;
+	struct ar5416AniState ani;
 
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 	struct ath_btcoex_hw btcoex_hw;
-- 
cgit v0.10.2


From 99e94940697adec4f84758adb2db71f4a82c7ba5 Mon Sep 17 00:00:00 2001
From: John Greene <jogreene@redhat.com>
Date: Mon, 3 Jun 2013 09:47:39 -0400
Subject: brcmsmac: Reduce log spam in heavy tx, make err print in debug

Move message to debug mode to reduce log spam under heavy tx (iperf) load.
This message prints in ht debug mode only:
brcms_c_ampdu_dotxstatus_complete: Pkt tx suppressed, illegal channel
possibly 153

Signed-off-by: John Greene <jogreene@redhat.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/ampdu.c b/drivers/net/wireless/brcm80211/brcmsmac/ampdu.c
index 1585cc5..bd98285 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/ampdu.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/ampdu.c
@@ -900,7 +900,7 @@ brcms_c_ampdu_dotxstatus_complete(struct ampdu_info *ampdu, struct scb *scb,
 		if (supr_status) {
 			update_rate = false;
 			if (supr_status == TX_STATUS_SUPR_BADCH) {
-				brcms_err(wlc->hw->d11core,
+				brcms_dbg_ht(wlc->hw->d11core,
 					  "%s: Pkt tx suppressed, illegal channel possibly %d\n",
 					  __func__, CHSPEC_CHANNEL(
 					  wlc->default_bss->chanspec));
-- 
cgit v0.10.2


From d6d23de2786edca61fb9813ff7cdc7d2543d08a7 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 4 Jun 2013 12:15:42 +0200
Subject: mac80211: add a tx control flag to indicate PS-Poll/uAPSD response

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 1f0014b..cb37f82 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -460,6 +460,8 @@ struct ieee80211_bss_conf {
  * @IEEE80211_TX_CTL_DONTFRAG: Don't fragment this packet even if it
  *	would be fragmented by size (this is optional, only used for
  *	monitor injection).
+ * @IEEE80211_TX_CTL_PS_RESPONSE: This frame is a response to a poll
+ *	frame (PS-Poll or uAPSD).
  *
  * Note: If you have to add new flags to the enumeration, then don't
  *	 forget to update %IEEE80211_TX_TEMPORARY_FLAGS when necessary.
@@ -495,6 +497,7 @@ enum mac80211_tx_control_flags {
 	IEEE80211_TX_STATUS_EOSP		= BIT(28),
 	IEEE80211_TX_CTL_USE_MINRATE		= BIT(29),
 	IEEE80211_TX_CTL_DONTFRAG		= BIT(30),
+	IEEE80211_TX_CTL_PS_RESPONSE		= BIT(31),
 };
 
 #define IEEE80211_TX_CTL_STBC_SHIFT		23
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index a04c5671..b429798 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1132,6 +1132,7 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata,
 	 * ends the poll/service period.
 	 */
 	info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER |
+		       IEEE80211_TX_CTL_PS_RESPONSE |
 		       IEEE80211_TX_STATUS_EOSP |
 		       IEEE80211_TX_CTL_REQ_TX_STATUS;
 
@@ -1269,7 +1270,8 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta,
 			 * STA may still remain is PS mode after this frame
 			 * exchange.
 			 */
-			info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
+			info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER |
+				       IEEE80211_TX_CTL_PS_RESPONSE;
 
 			/*
 			 * Use MoreData flag to indicate whether there are
-- 
cgit v0.10.2


From 9c90a9f64c21b0a3983655c9c08cf98489057a43 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 4 Jun 2013 12:46:03 +0200
Subject: nl80211: remove bogus genlmsg_end() error checking

genlmsg_end() can't return an error since it returns the
skb length so remove checks treating the return value as
an error code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 7ee9af3..ce949e3 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -9848,7 +9848,6 @@ static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	struct sk_buff *msg;
 	void *hdr;
-	int err;
 	u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
 
 	if (!nlportid)
@@ -9869,12 +9868,7 @@ static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
 	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
 		goto nla_put_failure;
 
-	err = genlmsg_end(msg, hdr);
-	if (err < 0) {
-		nlmsg_free(msg);
-		return true;
-	}
-
+	genlmsg_end(msg, hdr);
 	genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
 	return true;
 
@@ -10317,10 +10311,7 @@ nl80211_radar_notify(struct cfg80211_registered_device *rdev,
 	if (nl80211_send_chandef(msg, chandef))
 		goto nla_put_failure;
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -10386,7 +10377,6 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	struct sk_buff *msg;
 	void *hdr;
-	int err;
 
 	trace_cfg80211_probe_status(dev, addr, cookie, acked);
 
@@ -10408,11 +10398,7 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
 	    (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
 		goto nla_put_failure;
 
-	err = genlmsg_end(msg, hdr);
-	if (err < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -10478,7 +10464,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	struct sk_buff *msg;
 	void *hdr;
-	int err, size = 200;
+	int size = 200;
 
 	trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
 
@@ -10564,9 +10550,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
 		nla_nest_end(msg, reasons);
 	}
 
-	err = genlmsg_end(msg, hdr);
-	if (err < 0)
-		goto free_msg;
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -10586,7 +10570,6 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	struct sk_buff *msg;
 	void *hdr;
-	int err;
 
 	trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
 					 reason_code);
@@ -10609,11 +10592,7 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
 	     nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
 		goto nla_put_failure;
 
-	err = genlmsg_end(msg, hdr);
-	if (err < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -10671,7 +10650,6 @@ void cfg80211_ft_event(struct net_device *netdev,
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
 	void *hdr;
-	int err;
 
 	trace_cfg80211_ft_event(wiphy, netdev, ft_event);
 
@@ -10697,11 +10675,7 @@ void cfg80211_ft_event(struct net_device *netdev,
 		nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
 			ft_event->ric_ies);
 
-	err = genlmsg_end(msg, hdr);
-	if (err < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, GFP_KERNEL);
-- 
cgit v0.10.2


From ff40b425f04144771920b79672d6691910c7def7 Mon Sep 17 00:00:00 2001
From: Pontus Fuchs <pontus.fuchs@gmail.com>
Date: Tue, 4 Jun 2013 12:44:52 +0200
Subject: mac80211: set IEEE80211_TX_CTL_REQ_TX_STATUS on nullframes

The connection monitor needs to know the tx status of
nullframes to work properly.

Signed-off-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index f44f4ca..9950e13 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -880,6 +880,10 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
 					IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
+
+	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+
 	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
 			    IEEE80211_STA_CONNECTION_POLL))
 		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE;
-- 
cgit v0.10.2


From 6ff57cf88807dd81300b5b9c623dc5eb6422b9f6 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 16 May 2013 00:55:00 +0200
Subject: cfg80211/mac80211: clean up cfg80211 SME APIs

Do some cleanups in the cfg80211 SME APIs, which are
only used by mac80211.

Most of these functions get a frame passed, and there
isn't really any reason to export multiple functions
as cfg80211 can check the frame type instead, do that.

Additionally, the API functions have confusing names
like cfg80211_send_...() which was meant to indicate
that it sends an event to userspace, but gets a bit
confusing when there's both TX and RX and they're not
all clearly labeled.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 6169fca..195330d 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3432,59 +3432,66 @@ void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
 
 /**
- * cfg80211_send_rx_auth - notification of processed authentication
+ * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame
  * @dev: network device
  * @buf: authentication frame (header + body)
  * @len: length of the frame data
  *
- * This function is called whenever an authentication has been processed in
- * station mode. The driver is required to call either this function or
- * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
- * call. This function may sleep. The caller must hold the corresponding wdev's
- * mutex.
+ * This function is called whenever an authentication, disassociation or
+ * deauthentication frame has been received and processed in station mode.
+ * After being asked to authenticate via cfg80211_ops::auth() the driver must
+ * call either this function or cfg80211_auth_timeout().
+ * After being asked to associate via cfg80211_ops::assoc() the driver must
+ * call either this function or cfg80211_auth_timeout().
+ * While connected, the driver must calls this for received and processed
+ * disassociation and deauthentication frames. If the frame couldn't be used
+ * because it was unprotected, the driver must call the function
+ * cfg80211_rx_unprot_mlme_mgmt() instead.
+ *
+ * This function may sleep. The caller must hold the corresponding wdev's mutex.
  */
-void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
+void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
 
 /**
- * cfg80211_send_auth_timeout - notification of timed out authentication
+ * cfg80211_auth_timeout - notification of timed out authentication
  * @dev: network device
  * @addr: The MAC address of the device with which the authentication timed out
  *
  * This function may sleep. The caller must hold the corresponding wdev's
  * mutex.
  */
-void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);
+void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr);
 
 /**
- * cfg80211_send_rx_assoc - notification of processed association
+ * cfg80211_rx_assoc_resp - notification of processed association response
  * @dev: network device
- * @bss: the BSS struct association was requested for, the struct reference
- *	is owned by cfg80211 after this call
- * @buf: (re)association response frame (header + body)
+ * @bss: the BSS that association was requested with, ownership of the pointer
+ *	moves to cfg80211 in this call
+ * @buf: authentication frame (header + body)
  * @len: length of the frame data
  *
- * This function is called whenever a (re)association response has been
- * processed in station mode. The driver is required to call either this
- * function or cfg80211_send_assoc_timeout() to indicate the result of
- * cfg80211_ops::assoc() call. This function may sleep. The caller must hold
- * the corresponding wdev's mutex.
+ * After being asked to associate via cfg80211_ops::assoc() the driver must
+ * call either this function or cfg80211_auth_timeout().
+ *
+ * This function may sleep. The caller must hold the corresponding wdev's mutex.
  */
-void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
+void cfg80211_rx_assoc_resp(struct net_device *dev,
+			    struct cfg80211_bss *bss,
 			    const u8 *buf, size_t len);
 
 /**
- * cfg80211_send_assoc_timeout - notification of timed out association
+ * cfg80211_assoc_timeout - notification of timed out association
  * @dev: network device
  * @addr: The MAC address of the device with which the association timed out
  *
  * This function may sleep. The caller must hold the corresponding wdev's mutex.
  */
-void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
+void cfg80211_assoc_timeout(struct net_device *dev, const u8 *addr);
 
 /**
- * cfg80211_send_deauth - notification of processed deauthentication
+ * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
  * @dev: network device
- * @buf: deauthentication frame (header + body)
+ * @buf: 802.11 frame (header + body)
  * @len: length of the frame data
  *
  * This function is called whenever deauthentication has been processed in
@@ -3492,46 +3499,20 @@ void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);
  * locally generated ones. This function may sleep. The caller must hold the
  * corresponding wdev's mutex.
  */
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
+void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
 
 /**
- * cfg80211_send_disassoc - notification of processed disassociation
- * @dev: network device
- * @buf: disassociation response frame (header + body)
- * @len: length of the frame data
- *
- * This function is called whenever disassociation has been processed in
- * station mode. This includes both received disassociation frames and locally
- * generated ones. This function may sleep. The caller must hold the
- * corresponding wdev's mutex.
- */
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
-
-/**
- * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
+ * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
  * @dev: network device
  * @buf: deauthentication frame (header + body)
  * @len: length of the frame data
  *
- * This function is called whenever a received Deauthentication frame has been
- * dropped in station mode because of MFP being used but the Deauthentication
- * frame was not protected. This function may sleep.
- */
-void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
-				 size_t len);
-
-/**
- * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
- * @dev: network device
- * @buf: disassociation frame (header + body)
- * @len: length of the frame data
- *
- * This function is called whenever a received Disassociation frame has been
- * dropped in station mode because of MFP being used but the Disassociation
+ * This function is called whenever a received deauthentication or dissassoc
+ * frame has been dropped in station mode because of MFP being used but the
  * frame was not protected. This function may sleep.
  */
-void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
-				   size_t len);
+void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev,
+				  const u8 *buf, size_t len);
 
 /**
  * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 9950e13..df8170a 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2155,7 +2155,8 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
 
-	cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN);
+	cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+			      IEEE80211_DEAUTH_FRAME_LEN);
 	sdata_unlock(sdata);
 }
 
@@ -2302,7 +2303,7 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 		sdata_info(sdata, "%pM denied authentication (status %d)\n",
 			   mgmt->sa, status_code);
 		ieee80211_destroy_auth_data(sdata, false);
-		cfg80211_send_rx_auth(sdata->dev, (u8 *)mgmt, len);
+		cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 		return;
 	}
 
@@ -2337,7 +2338,7 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 		 * Report auth frame to user space for processing since another
 		 * round of Authentication frames is still needed.
 		 */
-		cfg80211_send_rx_auth(sdata->dev, (u8 *)mgmt, len);
+		cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 		return;
 	}
 
@@ -2354,7 +2355,7 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	}
 	mutex_unlock(&sdata->local->sta_mtx);
 
-	cfg80211_send_rx_auth(sdata->dev, (u8 *)mgmt, len);
+	cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 	return;
  out_err:
 	mutex_unlock(&sdata->local->sta_mtx);
@@ -2387,7 +2388,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
-	cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, len);
+	cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 }
 
 
@@ -2413,7 +2414,7 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
-	cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, len);
+	cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 }
 
 static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
@@ -2711,7 +2712,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 			/* oops -- internal error -- send timeout for now */
 			ieee80211_destroy_assoc_data(sdata, false);
 			cfg80211_put_bss(sdata->local->hw.wiphy, bss);
-			cfg80211_send_assoc_timeout(sdata->dev, mgmt->bssid);
+			cfg80211_assoc_timeout(sdata->dev, mgmt->bssid);
 			return;
 		}
 		sdata_info(sdata, "associated\n");
@@ -2724,7 +2725,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		ieee80211_destroy_assoc_data(sdata, true);
 	}
 
-	cfg80211_send_rx_assoc(sdata->dev, bss, (u8 *)mgmt, len);
+	cfg80211_rx_assoc_resp(sdata->dev, bss, (u8 *)mgmt, len);
 }
 
 static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
@@ -3117,8 +3118,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
 				       WLAN_REASON_DEAUTH_LEAVING,
 				       true, deauth_buf);
-		cfg80211_send_deauth(sdata->dev, deauth_buf,
-				     sizeof(deauth_buf));
+		cfg80211_tx_mlme_mgmt(sdata->dev, deauth_buf,
+				      sizeof(deauth_buf));
 		return;
 	}
 
@@ -3236,7 +3237,8 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
 	ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason,
 			       tx, frame_buf);
 
-	cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN);
+	cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+			      IEEE80211_DEAUTH_FRAME_LEN);
 }
 
 static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
@@ -3427,7 +3429,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 
 			ieee80211_destroy_auth_data(sdata, false);
 
-			cfg80211_send_auth_timeout(sdata->dev, bssid);
+			cfg80211_auth_timeout(sdata->dev, bssid);
 		}
 	} else if (ifmgd->auth_data && ifmgd->auth_data->timeout_started)
 		run_again(sdata, ifmgd->auth_data->timeout);
@@ -3443,7 +3445,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 
 			ieee80211_destroy_assoc_data(sdata, false);
 
-			cfg80211_send_assoc_timeout(sdata->dev, bssid);
+			cfg80211_assoc_timeout(sdata->dev, bssid);
 		}
 	} else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started)
 		run_again(sdata, ifmgd->assoc_data->timeout);
@@ -3992,8 +3994,8 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 				       WLAN_REASON_UNSPECIFIED,
 				       false, frame_buf);
 
-		cfg80211_send_deauth(sdata->dev, frame_buf,
-				     sizeof(frame_buf));
+		cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+				      sizeof(frame_buf));
 	}
 
 	sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid);
@@ -4055,8 +4057,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 				       WLAN_REASON_UNSPECIFIED,
 				       false, frame_buf);
 
-		cfg80211_send_deauth(sdata->dev, frame_buf,
-				     sizeof(frame_buf));
+		cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+				      sizeof(frame_buf));
 	}
 
 	if (ifmgd->auth_data && !ifmgd->auth_data->done) {
@@ -4309,8 +4311,8 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 
  out:
 	if (report_frame)
-		cfg80211_send_deauth(sdata->dev, frame_buf,
-				     IEEE80211_DEAUTH_FRAME_LEN);
+		cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+				      IEEE80211_DEAUTH_FRAME_LEN);
 
 	return 0;
 }
@@ -4340,8 +4342,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
 			       req->reason_code, !req->local_state_change,
 			       frame_buf);
 
-	cfg80211_send_disassoc(sdata->dev, frame_buf,
-			       IEEE80211_DEAUTH_FRAME_LEN);
+	cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+			      IEEE80211_DEAUTH_FRAME_LEN);
 
 	return 0;
 }
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index bdd7b4a..23dbcfc 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1747,27 +1747,21 @@ static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx)
 		if (unlikely(!ieee80211_has_protected(fc) &&
 			     ieee80211_is_unicast_robust_mgmt_frame(rx->skb) &&
 			     rx->key)) {
-			if (ieee80211_is_deauth(fc))
-				cfg80211_send_unprot_deauth(rx->sdata->dev,
-							    rx->skb->data,
-							    rx->skb->len);
-			else if (ieee80211_is_disassoc(fc))
-				cfg80211_send_unprot_disassoc(rx->sdata->dev,
-							      rx->skb->data,
-							      rx->skb->len);
+			if (ieee80211_is_deauth(fc) ||
+			    ieee80211_is_disassoc(fc))
+				cfg80211_rx_unprot_mlme_mgmt(rx->sdata->dev,
+							     rx->skb->data,
+							     rx->skb->len);
 			return -EACCES;
 		}
 		/* BIP does not use Protected field, so need to check MMIE */
 		if (unlikely(ieee80211_is_multicast_robust_mgmt_frame(rx->skb) &&
 			     ieee80211_get_mmie_keyidx(rx->skb) < 0)) {
-			if (ieee80211_is_deauth(fc))
-				cfg80211_send_unprot_deauth(rx->sdata->dev,
-							    rx->skb->data,
-							    rx->skb->len);
-			else if (ieee80211_is_disassoc(fc))
-				cfg80211_send_unprot_disassoc(rx->sdata->dev,
-							      rx->skb->data,
-							      rx->skb->len);
+			if (ieee80211_is_deauth(fc) ||
+			    ieee80211_is_disassoc(fc))
+				cfg80211_rx_unprot_mlme_mgmt(rx->sdata->dev,
+							     rx->skb->data,
+							     rx->skb->len);
 			return -EACCES;
 		}
 		/*
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 7bde5d9..4b9c2be 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -18,20 +18,7 @@
 #include "rdev-ops.h"
 
 
-void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
-
-	trace_cfg80211_send_rx_auth(dev);
-
-	nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
-	cfg80211_sme_rx_auth(dev, buf, len);
-}
-EXPORT_SYMBOL(cfg80211_send_rx_auth);
-
-void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
+void cfg80211_rx_assoc_resp(struct net_device *dev, struct cfg80211_bss *bss,
 			    const u8 *buf, size_t len)
 {
 	u16 status_code;
@@ -84,10 +71,10 @@ void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss,
 				  status_code,
 				  status_code == WLAN_STATUS_SUCCESS, bss);
 }
-EXPORT_SYMBOL(cfg80211_send_rx_assoc);
+EXPORT_SYMBOL(cfg80211_rx_assoc_resp);
 
-void cfg80211_send_deauth(struct net_device *dev,
-			  const u8 *buf, size_t len)
+static void cfg80211_process_deauth(struct net_device *dev,
+				    const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
@@ -96,9 +83,6 @@ void cfg80211_send_deauth(struct net_device *dev,
 	const u8 *bssid = mgmt->bssid;
 	bool was_current = false;
 
-	trace_cfg80211_send_deauth(dev);
-	ASSERT_WDEV_LOCK(wdev);
-
 	if (wdev->current_bss &&
 	    ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
 		cfg80211_unhold_bss(wdev->current_bss);
@@ -123,10 +107,9 @@ void cfg80211_send_deauth(struct net_device *dev,
 					  false, NULL);
 	}
 }
-EXPORT_SYMBOL(cfg80211_send_deauth);
 
-void cfg80211_send_disassoc(struct net_device *dev,
-			    const u8 *buf, size_t len)
+static void cfg80211_process_disassoc(struct net_device *dev,
+				      const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
@@ -136,9 +119,6 @@ void cfg80211_send_disassoc(struct net_device *dev,
 	u16 reason_code;
 	bool from_ap;
 
-	trace_cfg80211_send_disassoc(dev);
-	ASSERT_WDEV_LOCK(wdev);
-
 	nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
 
 	if (wdev->sme_state != CFG80211_SME_CONNECTED)
@@ -153,15 +133,38 @@ void cfg80211_send_disassoc(struct net_device *dev,
 	} else
 		WARN_ON(1);
 
-
 	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
 
 	from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
 	__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
 }
-EXPORT_SYMBOL(cfg80211_send_disassoc);
 
-void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
+void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	struct ieee80211_mgmt *mgmt = (void *)buf;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	trace_cfg80211_rx_mlme_mgmt(dev, buf, len);
+
+	if (WARN_ON(len < 2))
+		return;
+
+	if (ieee80211_is_auth(mgmt->frame_control)) {
+		nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
+		cfg80211_sme_rx_auth(dev, buf, len);
+	} else if (ieee80211_is_deauth(mgmt->frame_control)) {
+		cfg80211_process_deauth(dev, buf, len);
+	} else if (ieee80211_is_disassoc(mgmt->frame_control)) {
+		cfg80211_process_disassoc(dev, buf, len);
+	}
+}
+EXPORT_SYMBOL(cfg80211_rx_mlme_mgmt);
+
+void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
@@ -175,9 +178,9 @@ void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr)
 					  WLAN_STATUS_UNSPECIFIED_FAILURE,
 					  false, NULL);
 }
-EXPORT_SYMBOL(cfg80211_send_auth_timeout);
+EXPORT_SYMBOL(cfg80211_auth_timeout);
 
-void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
+void cfg80211_assoc_timeout(struct net_device *dev, const u8 *addr)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
@@ -191,7 +194,26 @@ void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr)
 					  WLAN_STATUS_UNSPECIFIED_FAILURE,
 					  false, NULL);
 }
-EXPORT_SYMBOL(cfg80211_send_assoc_timeout);
+EXPORT_SYMBOL(cfg80211_assoc_timeout);
+
+void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct ieee80211_mgmt *mgmt = (void *)buf;
+
+	ASSERT_WDEV_LOCK(wdev);
+
+	trace_cfg80211_tx_mlme_mgmt(dev, buf, len);
+
+	if (WARN_ON(len < 2))
+		return;
+
+	if (ieee80211_is_deauth(mgmt->frame_control))
+		cfg80211_process_deauth(dev, buf, len);
+	else
+		cfg80211_process_disassoc(dev, buf, len);
+}
+EXPORT_SYMBOL(cfg80211_tx_mlme_mgmt);
 
 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
 				  enum nl80211_key_type key_type, int key_id,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ce949e3..444f5ef 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -9313,31 +9313,27 @@ void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
 				NL80211_CMD_DISASSOCIATE, gfp);
 }
 
-void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
-				 size_t len)
+void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
+				  size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	const struct ieee80211_mgmt *mgmt = (void *)buf;
+	u32 cmd;
 
-	trace_cfg80211_send_unprot_deauth(dev);
-	nl80211_send_mlme_event(rdev, dev, buf, len,
-				NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
-}
-EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
+	if (WARN_ON(len < 2))
+		return;
 
-void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
-				   size_t len)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	if (ieee80211_is_deauth(mgmt->frame_control))
+		cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
+	else
+		cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
 
-	trace_cfg80211_send_unprot_disassoc(dev);
-	nl80211_send_mlme_event(rdev, dev, buf, len,
-				NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
+	trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
+	nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
 }
-EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
+EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
 
 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
 				      struct net_device *netdev, int cmd,
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 23fafea..e1534baf 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1911,24 +1911,46 @@ TRACE_EVENT(cfg80211_send_rx_assoc,
 		  NETDEV_PR_ARG, MAC_PR_ARG(bssid), CHAN_PR_ARG)
 );
 
-DEFINE_EVENT(netdev_evt_only, cfg80211_send_deauth,
-	TP_PROTO(struct net_device *netdev),
-	TP_ARGS(netdev)
+DECLARE_EVENT_CLASS(netdev_frame_event,
+	TP_PROTO(struct net_device *netdev, const u8 *buf, int len),
+	TP_ARGS(netdev, buf, len),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		__dynamic_array(u8, frame, len)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		memcpy(__get_dynamic_array(frame), buf, len);
+	),
+	TP_printk(NETDEV_PR_FMT ", ftype:0x%.2x",
+		  NETDEV_PR_ARG,
+		  le16_to_cpup((__le16 *)__get_dynamic_array(frame)))
 );
 
-DEFINE_EVENT(netdev_evt_only, cfg80211_send_disassoc,
-	TP_PROTO(struct net_device *netdev),
-	TP_ARGS(netdev)
+DEFINE_EVENT(netdev_frame_event, cfg80211_rx_unprot_mlme_mgmt,
+	TP_PROTO(struct net_device *netdev, const u8 *buf, int len),
+	TP_ARGS(netdev, buf, len)
 );
 
-DEFINE_EVENT(netdev_evt_only, cfg80211_send_unprot_deauth,
-	TP_PROTO(struct net_device *netdev),
-	TP_ARGS(netdev)
+DEFINE_EVENT(netdev_frame_event, cfg80211_rx_mlme_mgmt,
+	TP_PROTO(struct net_device *netdev, const u8 *buf, int len),
+	TP_ARGS(netdev, buf, len)
 );
 
-DEFINE_EVENT(netdev_evt_only, cfg80211_send_unprot_disassoc,
-	TP_PROTO(struct net_device *netdev),
-	TP_ARGS(netdev)
+TRACE_EVENT(cfg80211_tx_mlme_mgmt,
+	TP_PROTO(struct net_device *netdev, const u8 *buf, int len),
+	TP_ARGS(netdev, buf, len),
+	TP_STRUCT__entry(
+		NETDEV_ENTRY
+		__dynamic_array(u8, frame, len)
+	),
+	TP_fast_assign(
+		NETDEV_ASSIGN;
+		memcpy(__get_dynamic_array(frame), buf, len);
+	),
+	TP_printk(NETDEV_PR_FMT ", ftype:0x%.2x",
+		  NETDEV_PR_ARG,
+		  le16_to_cpup((__le16 *)__get_dynamic_array(frame)))
 );
 
 DECLARE_EVENT_CLASS(netdev_mac_evt,
-- 
cgit v0.10.2


From ceca7b7121795ef81bd598a240d53a925662d0c1 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 16 May 2013 00:55:45 +0200
Subject: cfg80211: separate internal SME implementation

The current internal SME implementation in cfg80211 is
very mixed up with the MLME handling, which has been
causing issues for a long time. There are three things
that the implementation has to provide:
 * a basic SME implementation for nl80211's connect()
   call (for drivers implementing auth/assoc, which is
   really just mac80211) and wireless extensions
 * MLME events for the userspace SME
 * SME events (connected, disconnected etc.) for all
   different SME implementation possibilities (driver,
   cfg80211 and userspace)

To achieve these goals it isn't necessary to track the
software SME's connection status outside of it's state
(which is the part that caused many issues.) Instead,
track it only in the SME data (wdev->conn) and in the
general case only track whether the wdev is connected
or not (via wdev->current_bss.)

Also separate the internal implementation to not have
callbacks from the SME events, but rather call it from
the API functions that the driver (or rather mac80211)
calls. This separates the code better.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 195330d..5b20806 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2898,11 +2898,6 @@ struct wireless_dev {
 	/* currently used for IBSS and SME - might be rearranged later */
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
 	u8 ssid_len, mesh_id_len, mesh_id_up_len;
-	enum {
-		CFG80211_SME_IDLE,
-		CFG80211_SME_CONNECTING,
-		CFG80211_SME_CONNECTED,
-	} sme_state;
 	struct cfg80211_conn *conn;
 	struct cfg80211_cached_keys *connect_keys;
 
diff --git a/net/wireless/core.c b/net/wireless/core.c
index f553b94..221e76b 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -821,7 +821,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 			pr_err("failed to add phy80211 symlink to netdev!\n");
 		}
 		wdev->netdev = dev;
-		wdev->sme_state = CFG80211_SME_IDLE;
 #ifdef CONFIG_CFG80211_WEXT
 		wdev->wext.default_key = -1;
 		wdev->wext.default_mgmt_key = -1;
diff --git a/net/wireless/core.h b/net/wireless/core.h
index a65eaf8..a6b45bf 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -308,11 +308,6 @@ int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 			   bool local_state_change);
 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 			struct net_device *dev);
-void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
-			       const u8 *req_ie, size_t req_ie_len,
-			       const u8 *resp_ie, size_t resp_ie_len,
-			       u16 status, bool wextev,
-			       struct cfg80211_bss *bss);
 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
 				u16 frame_type, const u8 *match_data,
 				int match_len);
@@ -328,12 +323,19 @@ void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
 void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
 				const struct ieee80211_vht_cap *vht_capa_mask);
 
-/* SME */
+/* SME events */
 int cfg80211_connect(struct cfg80211_registered_device *rdev,
 		     struct net_device *dev,
 		     struct cfg80211_connect_params *connect,
 		     struct cfg80211_cached_keys *connkeys,
 		     const u8 *prev_bssid);
+void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
+			       const u8 *req_ie, size_t req_ie_len,
+			       const u8 *resp_ie, size_t resp_ie_len,
+			       u16 status, bool wextev,
+			       struct cfg80211_bss *bss);
+void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
+			     size_t ie_len, u16 reason, bool from_ap);
 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 			struct net_device *dev, u16 reason,
 			bool wextev);
@@ -344,21 +346,21 @@ void __cfg80211_roamed(struct wireless_dev *wdev,
 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
 			      struct wireless_dev *wdev);
 
+/* SME implementation */
 void cfg80211_conn_work(struct work_struct *work);
-void cfg80211_sme_failed_assoc(struct wireless_dev *wdev);
-bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev);
+void cfg80211_sme_scan_done(struct net_device *dev);
+bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
+void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
+void cfg80211_sme_disassoc(struct wireless_dev *wdev);
+void cfg80211_sme_deauth(struct wireless_dev *wdev);
+void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
+void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
 
 /* internal helpers */
 bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
 int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 				   struct key_params *params, int key_idx,
 				   bool pairwise, const u8 *mac_addr);
-void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
-			     size_t ie_len, u16 reason, bool from_ap);
-void cfg80211_sme_scan_done(struct net_device *dev);
-void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
-void cfg80211_sme_disassoc(struct net_device *dev,
-			   struct cfg80211_internal_bss *bss);
 void __cfg80211_scan_done(struct work_struct *wk);
 void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak);
 void __cfg80211_sched_scan_results(struct work_struct *wk);
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index 5449c5a..39bff7d 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -43,7 +43,6 @@ void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid)
 	cfg80211_hold_bss(bss_from_pub(bss));
 	wdev->current_bss = bss_from_pub(bss);
 
-	wdev->sme_state = CFG80211_SME_CONNECTED;
 	cfg80211_upload_connect_keys(wdev);
 
 	nl80211_send_ibss_bssid(wiphy_to_dev(wdev->wiphy), dev, bssid,
@@ -64,8 +63,6 @@ void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp)
 
 	trace_cfg80211_ibss_joined(dev, bssid);
 
-	CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING);
-
 	ev = kzalloc(sizeof(*ev), gfp);
 	if (!ev)
 		return;
@@ -120,7 +117,6 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 #ifdef CONFIG_CFG80211_WEXT
 	wdev->wext.ibss.chandef = params->chandef;
 #endif
-	wdev->sme_state = CFG80211_SME_CONNECTING;
 
 	err = cfg80211_can_use_chan(rdev, wdev, params->chandef.chan,
 				    params->channel_fixed
@@ -134,7 +130,6 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 	err = rdev_join_ibss(rdev, dev, params);
 	if (err) {
 		wdev->connect_keys = NULL;
-		wdev->sme_state = CFG80211_SME_IDLE;
 		return err;
 	}
 
@@ -186,7 +181,6 @@ static void __cfg80211_clear_ibss(struct net_device *dev, bool nowext)
 	}
 
 	wdev->current_bss = NULL;
-	wdev->sme_state = CFG80211_SME_IDLE;
 	wdev->ssid_len = 0;
 #ifdef CONFIG_CFG80211_WEXT
 	if (!nowext)
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 4b9c2be..a61a44b 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -21,129 +21,85 @@
 void cfg80211_rx_assoc_resp(struct net_device *dev, struct cfg80211_bss *bss,
 			    const u8 *buf, size_t len)
 {
-	u16 status_code;
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
 	u8 *ie = mgmt->u.assoc_resp.variable;
 	int ieoffs = offsetof(struct ieee80211_mgmt, u.assoc_resp.variable);
+	u16 status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
 
 	trace_cfg80211_send_rx_assoc(dev, bss);
 
-	status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
-
 	/*
 	 * This is a bit of a hack, we don't notify userspace of
 	 * a (re-)association reply if we tried to send a reassoc
 	 * and got a reject -- we only try again with an assoc
 	 * frame instead of reassoc.
 	 */
-	if (status_code != WLAN_STATUS_SUCCESS && wdev->conn &&
-	    cfg80211_sme_failed_reassoc(wdev)) {
+	if (cfg80211_sme_rx_assoc_resp(wdev, status_code)) {
 		cfg80211_put_bss(wiphy, bss);
 		return;
 	}
 
 	nl80211_send_rx_assoc(rdev, dev, buf, len, GFP_KERNEL);
-
-	if (status_code != WLAN_STATUS_SUCCESS && wdev->conn) {
-		cfg80211_sme_failed_assoc(wdev);
-		/*
-		 * do not call connect_result() now because the
-		 * sme will schedule work that does it later.
-		 */
-		cfg80211_put_bss(wiphy, bss);
-		return;
-	}
-
-	if (!wdev->conn && wdev->sme_state == CFG80211_SME_IDLE) {
-		/*
-		 * This is for the userspace SME, the CONNECTING
-		 * state will be changed to CONNECTED by
-		 * __cfg80211_connect_result() below.
-		 */
-		wdev->sme_state = CFG80211_SME_CONNECTING;
-	}
-
-	/* this consumes the bss reference */
+	/* update current_bss etc., consumes the bss reference */
 	__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, ie, len - ieoffs,
 				  status_code,
 				  status_code == WLAN_STATUS_SUCCESS, bss);
 }
 EXPORT_SYMBOL(cfg80211_rx_assoc_resp);
 
-static void cfg80211_process_deauth(struct net_device *dev,
+static void cfg80211_process_auth(struct wireless_dev *wdev,
+				  const u8 *buf, size_t len)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+
+	nl80211_send_rx_auth(rdev, wdev->netdev, buf, len, GFP_KERNEL);
+	cfg80211_sme_rx_auth(wdev, buf, len);
+}
+
+static void cfg80211_process_deauth(struct wireless_dev *wdev,
 				    const u8 *buf, size_t len)
 {
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
 	const u8 *bssid = mgmt->bssid;
-	bool was_current = false;
-
-	if (wdev->current_bss &&
-	    ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
-		cfg80211_unhold_bss(wdev->current_bss);
-		cfg80211_put_bss(wiphy, &wdev->current_bss->pub);
-		wdev->current_bss = NULL;
-		was_current = true;
-	}
+	u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
+	bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr);
 
-	nl80211_send_deauth(rdev, dev, buf, len, GFP_KERNEL);
+	nl80211_send_deauth(rdev, wdev->netdev, buf, len, GFP_KERNEL);
 
-	if (wdev->sme_state == CFG80211_SME_CONNECTED && was_current) {
-		u16 reason_code;
-		bool from_ap;
-
-		reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
+	if (!wdev->current_bss ||
+	    !ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
+		return;
 
-		from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
-		__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
-	} else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
-		__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
-					  WLAN_STATUS_UNSPECIFIED_FAILURE,
-					  false, NULL);
-	}
+	__cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap);
+	cfg80211_sme_deauth(wdev);
 }
 
-static void cfg80211_process_disassoc(struct net_device *dev,
+static void cfg80211_process_disassoc(struct wireless_dev *wdev,
 				      const u8 *buf, size_t len)
 {
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
 	const u8 *bssid = mgmt->bssid;
-	u16 reason_code;
-	bool from_ap;
+	u16 reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
+	bool from_ap = !ether_addr_equal(mgmt->sa, wdev->netdev->dev_addr);
 
-	nl80211_send_disassoc(rdev, dev, buf, len, GFP_KERNEL);
+	nl80211_send_disassoc(rdev, wdev->netdev, buf, len, GFP_KERNEL);
 
-	if (wdev->sme_state != CFG80211_SME_CONNECTED)
+	if (WARN_ON(!wdev->current_bss ||
+		    !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
 		return;
 
-	if (wdev->current_bss &&
-	    ether_addr_equal(wdev->current_bss->pub.bssid, bssid)) {
-		cfg80211_sme_disassoc(dev, wdev->current_bss);
-		cfg80211_unhold_bss(wdev->current_bss);
-		cfg80211_put_bss(wiphy, &wdev->current_bss->pub);
-		wdev->current_bss = NULL;
-	} else
-		WARN_ON(1);
-
-	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
-
-	from_ap = !ether_addr_equal(mgmt->sa, dev->dev_addr);
-	__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
+	__cfg80211_disconnected(wdev->netdev, NULL, 0, reason_code, from_ap);
+	cfg80211_sme_disassoc(wdev);
 }
 
 void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct ieee80211_mgmt *mgmt = (void *)buf;
 
 	ASSERT_WDEV_LOCK(wdev);
@@ -153,14 +109,12 @@ void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
 	if (WARN_ON(len < 2))
 		return;
 
-	if (ieee80211_is_auth(mgmt->frame_control)) {
-		nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
-		cfg80211_sme_rx_auth(dev, buf, len);
-	} else if (ieee80211_is_deauth(mgmt->frame_control)) {
-		cfg80211_process_deauth(dev, buf, len);
-	} else if (ieee80211_is_disassoc(mgmt->frame_control)) {
-		cfg80211_process_disassoc(dev, buf, len);
-	}
+	if (ieee80211_is_auth(mgmt->frame_control))
+		cfg80211_process_auth(wdev, buf, len);
+	else if (ieee80211_is_deauth(mgmt->frame_control))
+		cfg80211_process_deauth(wdev, buf, len);
+	else if (ieee80211_is_disassoc(mgmt->frame_control))
+		cfg80211_process_disassoc(wdev, buf, len);
 }
 EXPORT_SYMBOL(cfg80211_rx_mlme_mgmt);
 
@@ -173,10 +127,7 @@ void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr)
 	trace_cfg80211_send_auth_timeout(dev, addr);
 
 	nl80211_send_auth_timeout(rdev, dev, addr, GFP_KERNEL);
-	if (wdev->sme_state == CFG80211_SME_CONNECTING)
-		__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
-					  WLAN_STATUS_UNSPECIFIED_FAILURE,
-					  false, NULL);
+	cfg80211_sme_auth_timeout(wdev);
 }
 EXPORT_SYMBOL(cfg80211_auth_timeout);
 
@@ -189,10 +140,7 @@ void cfg80211_assoc_timeout(struct net_device *dev, const u8 *addr)
 	trace_cfg80211_send_assoc_timeout(dev, addr);
 
 	nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
-	if (wdev->sme_state == CFG80211_SME_CONNECTING)
-		__cfg80211_connect_result(dev, addr, NULL, 0, NULL, 0,
-					  WLAN_STATUS_UNSPECIFIED_FAILURE,
-					  false, NULL);
+	cfg80211_sme_assoc_timeout(wdev);
 }
 EXPORT_SYMBOL(cfg80211_assoc_timeout);
 
@@ -209,9 +157,9 @@ void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len)
 		return;
 
 	if (ieee80211_is_deauth(mgmt->frame_control))
-		cfg80211_process_deauth(dev, buf, len);
+		cfg80211_process_deauth(wdev, buf, len);
 	else
-		cfg80211_process_disassoc(dev, buf, len);
+		cfg80211_process_disassoc(wdev, buf, len);
 }
 EXPORT_SYMBOL(cfg80211_tx_mlme_mgmt);
 
@@ -336,21 +284,12 @@ int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	int err;
-	bool was_connected = false;
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	if (wdev->current_bss && req->prev_bssid &&
-	    ether_addr_equal(wdev->current_bss->pub.bssid, req->prev_bssid)) {
-		/*
-		 * Trying to reassociate: Allow this to proceed and let the old
-		 * association to be dropped when the new one is completed.
-		 */
-		if (wdev->sme_state == CFG80211_SME_CONNECTED) {
-			was_connected = true;
-			wdev->sme_state = CFG80211_SME_CONNECTING;
-		}
-	} else if (wdev->current_bss)
+	if (wdev->current_bss &&
+	    (!req->prev_bssid || !ether_addr_equal(wdev->current_bss->pub.bssid,
+						   req->prev_bssid)))
 		return -EALREADY;
 
 	cfg80211_oper_and_ht_capa(&req->ht_capa_mask,
@@ -360,11 +299,8 @@ int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 
 	req->bss = cfg80211_get_bss(&rdev->wiphy, chan, bssid, ssid, ssid_len,
 				    WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
-	if (!req->bss) {
-		if (was_connected)
-			wdev->sme_state = CFG80211_SME_CONNECTED;
+	if (!req->bss)
 		return -ENOENT;
-	}
 
 	err = cfg80211_can_use_chan(rdev, wdev, chan, CHAN_MODE_SHARED);
 	if (err)
@@ -373,11 +309,8 @@ int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 	err = rdev_assoc(rdev, dev, req);
 
 out:
-	if (err) {
-		if (was_connected)
-			wdev->sme_state = CFG80211_SME_CONNECTED;
+	if (err)
 		cfg80211_put_bss(&rdev->wiphy, req->bss);
-	}
 
 	return err;
 }
@@ -398,8 +331,9 @@ int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	if (local_state_change && (!wdev->current_bss ||
-	    !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
+	if (local_state_change &&
+	    (!wdev->current_bss ||
+	     !ether_addr_equal(wdev->current_bss->pub.bssid, bssid)))
 		return 0;
 
 	return rdev_deauth(rdev, dev, &req);
@@ -417,13 +351,11 @@ int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 		.ie = ie,
 		.ie_len = ie_len,
 	};
+	int err;
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	if (wdev->sme_state != CFG80211_SME_CONNECTED)
-		return -ENOTCONN;
-
-	if (WARN(!wdev->current_bss, "sme_state=%d\n", wdev->sme_state))
+	if (!wdev->current_bss)
 		return -ENOTCONN;
 
 	if (ether_addr_equal(wdev->current_bss->pub.bssid, bssid))
@@ -431,7 +363,13 @@ int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
 	else
 		return -ENOTCONN;
 
-	return rdev_disassoc(rdev, dev, &req);
+	err = rdev_disassoc(rdev, dev, &req);
+	if (err)
+		return err;
+
+	/* driver should have reported the disassoc */
+	WARN_ON(wdev->current_bss);
+	return 0;
 }
 
 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
@@ -439,10 +377,6 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	u8 bssid[ETH_ALEN];
-	struct cfg80211_deauth_request req = {
-		.reason_code = WLAN_REASON_DEAUTH_LEAVING,
-		.bssid = bssid,
-	};
 
 	ASSERT_WDEV_LOCK(wdev);
 
@@ -453,13 +387,8 @@ void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
 		return;
 
 	memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
-	rdev_deauth(rdev, dev, &req);
-
-	if (wdev->current_bss) {
-		cfg80211_unhold_bss(wdev->current_bss);
-		cfg80211_put_bss(&rdev->wiphy, &wdev->current_bss->pub);
-		wdev->current_bss = NULL;
-	}
+	cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
+			     WLAN_REASON_DEAUTH_LEAVING, false);
 }
 
 struct cfg80211_mgmt_registration {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 444f5ef..88e820b 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -800,12 +800,9 @@ static int nl80211_key_allowed(struct wireless_dev *wdev)
 	case NL80211_IFTYPE_MESH_POINT:
 		break;
 	case NL80211_IFTYPE_ADHOC:
-		if (!wdev->current_bss)
-			return -ENOLINK;
-		break;
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_P2P_CLIENT:
-		if (wdev->sme_state != CFG80211_SME_CONNECTED)
+		if (!wdev->current_bss)
 			return -ENOLINK;
 		break;
 	default:
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 81be95f..ae7e2cb 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -1,5 +1,7 @@
 /*
- * SME code for cfg80211's connect emulation.
+ * SME code for cfg80211
+ * both driver SME event handling and the SME implementation
+ * (for nl80211's connect() and wext)
  *
  * Copyright 2009	Johannes Berg <johannes@sipsolutions.net>
  * Copyright (C) 2009   Intel Corporation. All rights reserved.
@@ -18,18 +20,24 @@
 #include "reg.h"
 #include "rdev-ops.h"
 
+/*
+ * Software SME in cfg80211, using auth/assoc/deauth calls to the
+ * driver. This is is for implementing nl80211's connect/disconnect
+ * and wireless extensions (if configured.)
+ */
+
 struct cfg80211_conn {
 	struct cfg80211_connect_params params;
 	/* these are sub-states of the _CONNECTING sme_state */
 	enum {
-		CFG80211_CONN_IDLE,
 		CFG80211_CONN_SCANNING,
 		CFG80211_CONN_SCAN_AGAIN,
 		CFG80211_CONN_AUTHENTICATE_NEXT,
 		CFG80211_CONN_AUTHENTICATING,
 		CFG80211_CONN_ASSOCIATE_NEXT,
 		CFG80211_CONN_ASSOCIATING,
-		CFG80211_CONN_DEAUTH_ASSOC_FAIL,
+		CFG80211_CONN_DEAUTH,
+		CFG80211_CONN_CONNECTED,
 	} state;
 	u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
 	u8 *ie;
@@ -37,39 +45,16 @@ struct cfg80211_conn {
 	bool auto_auth, prev_bssid_valid;
 };
 
-static bool cfg80211_is_all_idle(void)
+static void cfg80211_sme_free(struct wireless_dev *wdev)
 {
-	struct cfg80211_registered_device *rdev;
-	struct wireless_dev *wdev;
-	bool is_all_idle = true;
-
-	/*
-	 * All devices must be idle as otherwise if you are actively
-	 * scanning some new beacon hints could be learned and would
-	 * count as new regulatory hints.
-	 */
-	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
-		list_for_each_entry(wdev, &rdev->wdev_list, list) {
-			wdev_lock(wdev);
-			if (wdev->sme_state != CFG80211_SME_IDLE)
-				is_all_idle = false;
-			wdev_unlock(wdev);
-		}
-	}
-
-	return is_all_idle;
-}
+	if (!wdev->conn)
+		return;
 
-static void disconnect_work(struct work_struct *work)
-{
-	rtnl_lock();
-	if (cfg80211_is_all_idle())
-		regulatory_hint_disconnect();
-	rtnl_unlock();
+	kfree(wdev->conn->ie);
+	kfree(wdev->conn);
+	wdev->conn = NULL;
 }
 
-static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
-
 static int cfg80211_conn_scan(struct wireless_dev *wdev)
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -164,6 +149,9 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev)
 	params = &wdev->conn->params;
 
 	switch (wdev->conn->state) {
+	case CFG80211_CONN_SCANNING:
+		/* didn't find it during scan ... */
+		return -ENOENT;
 	case CFG80211_CONN_SCAN_AGAIN:
 		return cfg80211_conn_scan(wdev);
 	case CFG80211_CONN_AUTHENTICATE_NEXT:
@@ -200,12 +188,11 @@ static int cfg80211_conn_do_work(struct wireless_dev *wdev)
 					     WLAN_REASON_DEAUTH_LEAVING,
 					     false);
 		return err;
-	case CFG80211_CONN_DEAUTH_ASSOC_FAIL:
+	case CFG80211_CONN_DEAUTH:
 		cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
 				     NULL, 0,
 				     WLAN_REASON_DEAUTH_LEAVING, false);
-		/* return an error so that we call __cfg80211_connect_result() */
-		return -EINVAL;
+		return 0;
 	default:
 		return 0;
 	}
@@ -229,7 +216,8 @@ void cfg80211_conn_work(struct work_struct *work)
 			wdev_unlock(wdev);
 			continue;
 		}
-		if (wdev->sme_state != CFG80211_SME_CONNECTING || !wdev->conn) {
+		if (!wdev->conn ||
+		    wdev->conn->state == CFG80211_CONN_CONNECTED) {
 			wdev_unlock(wdev);
 			continue;
 		}
@@ -237,12 +225,14 @@ void cfg80211_conn_work(struct work_struct *work)
 			memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
 			bssid = bssid_buf;
 		}
-		if (cfg80211_conn_do_work(wdev))
+		if (cfg80211_conn_do_work(wdev)) {
 			__cfg80211_connect_result(
 					wdev->netdev, bssid,
 					NULL, 0, NULL, 0,
 					WLAN_STATUS_UNSPECIFIED_FAILURE,
 					false, NULL);
+			cfg80211_sme_free(wdev);
+		}
 		wdev_unlock(wdev);
 	}
 
@@ -286,9 +276,6 @@ static void __cfg80211_sme_scan_done(struct net_device *dev)
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	if (wdev->sme_state != CFG80211_SME_CONNECTING)
-		return;
-
 	if (!wdev->conn)
 		return;
 
@@ -297,20 +284,10 @@ static void __cfg80211_sme_scan_done(struct net_device *dev)
 		return;
 
 	bss = cfg80211_get_conn_bss(wdev);
-	if (bss) {
+	if (bss)
 		cfg80211_put_bss(&rdev->wiphy, bss);
-	} else {
-		/* not found */
-		if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)
-			schedule_work(&rdev->conn_work);
-		else
-			__cfg80211_connect_result(
-					wdev->netdev,
-					wdev->conn->params.bssid,
-					NULL, 0, NULL, 0,
-					WLAN_STATUS_UNSPECIFIED_FAILURE,
-					false, NULL);
-	}
+	else
+		schedule_work(&rdev->conn_work);
 }
 
 void cfg80211_sme_scan_done(struct net_device *dev)
@@ -322,10 +299,8 @@ void cfg80211_sme_scan_done(struct net_device *dev)
 	wdev_unlock(wdev);
 }
 
-void cfg80211_sme_rx_auth(struct net_device *dev,
-			  const u8 *buf, size_t len)
+void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len)
 {
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
@@ -333,11 +308,7 @@ void cfg80211_sme_rx_auth(struct net_device *dev,
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	/* should only RX auth frames when connecting */
-	if (wdev->sme_state != CFG80211_SME_CONNECTING)
-		return;
-
-	if (WARN_ON(!wdev->conn))
+	if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED)
 		return;
 
 	if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
@@ -366,46 +337,226 @@ void cfg80211_sme_rx_auth(struct net_device *dev,
 		wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
 		schedule_work(&rdev->conn_work);
 	} else if (status_code != WLAN_STATUS_SUCCESS) {
-		__cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
+		__cfg80211_connect_result(wdev->netdev, mgmt->bssid,
+					  NULL, 0, NULL, 0,
 					  status_code, false, NULL);
-	} else if (wdev->sme_state == CFG80211_SME_CONNECTING &&
-		 wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
+	} else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
 		wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
 		schedule_work(&rdev->conn_work);
 	}
 }
 
-bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev)
+bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status)
 {
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 
-	if (WARN_ON(!wdev->conn))
+	if (!wdev->conn)
 		return false;
 
-	if (!wdev->conn->prev_bssid_valid)
+	if (status == WLAN_STATUS_SUCCESS) {
+		wdev->conn->state = CFG80211_CONN_CONNECTED;
 		return false;
+	}
 
-	/*
-	 * Some stupid APs don't accept reassoc, so we
-	 * need to fall back to trying regular assoc.
-	 */
-	wdev->conn->prev_bssid_valid = false;
-	wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
+	if (wdev->conn->prev_bssid_valid) {
+		/*
+		 * Some stupid APs don't accept reassoc, so we
+		 * need to fall back to trying regular assoc;
+		 * return true so no event is sent to userspace.
+		 */
+		wdev->conn->prev_bssid_valid = false;
+		wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
+		schedule_work(&rdev->conn_work);
+		return true;
+	}
+
+	wdev->conn->state = CFG80211_CONN_DEAUTH;
 	schedule_work(&rdev->conn_work);
+	return false;
+}
 
-	return true;
+void cfg80211_sme_deauth(struct wireless_dev *wdev)
+{
+	cfg80211_sme_free(wdev);
 }
 
-void cfg80211_sme_failed_assoc(struct wireless_dev *wdev)
+void cfg80211_sme_auth_timeout(struct wireless_dev *wdev)
 {
-	struct wiphy *wiphy = wdev->wiphy;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+	cfg80211_sme_free(wdev);
+}
 
-	wdev->conn->state = CFG80211_CONN_DEAUTH_ASSOC_FAIL;
+void cfg80211_sme_disassoc(struct wireless_dev *wdev)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+
+	if (!wdev->conn)
+		return;
+
+	wdev->conn->state = CFG80211_CONN_DEAUTH;
 	schedule_work(&rdev->conn_work);
 }
 
+void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev)
+{
+	cfg80211_sme_disassoc(wdev);
+}
+
+static int cfg80211_sme_connect(struct wireless_dev *wdev,
+				struct cfg80211_connect_params *connect,
+				const u8 *prev_bssid)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	struct cfg80211_bss *bss;
+	int err;
+
+	if (!rdev->ops->auth || !rdev->ops->assoc)
+		return -EOPNOTSUPP;
+
+	if (wdev->current_bss)
+		return -EALREADY;
+
+	if (WARN_ON(wdev->conn))
+		return -EINPROGRESS;
+
+	wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
+	if (!wdev->conn)
+		return -ENOMEM;
+
+	/*
+	 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
+	 */
+	memcpy(&wdev->conn->params, connect, sizeof(*connect));
+	if (connect->bssid) {
+		wdev->conn->params.bssid = wdev->conn->bssid;
+		memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
+	}
+
+	if (connect->ie) {
+		wdev->conn->ie = kmemdup(connect->ie, connect->ie_len,
+					GFP_KERNEL);
+		wdev->conn->params.ie = wdev->conn->ie;
+		if (!wdev->conn->ie) {
+			kfree(wdev->conn);
+			wdev->conn = NULL;
+			return -ENOMEM;
+		}
+	}
+
+	if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
+		wdev->conn->auto_auth = true;
+		/* start with open system ... should mostly work */
+		wdev->conn->params.auth_type =
+			NL80211_AUTHTYPE_OPEN_SYSTEM;
+	} else {
+		wdev->conn->auto_auth = false;
+	}
+
+	wdev->conn->params.ssid = wdev->ssid;
+	wdev->conn->params.ssid_len = connect->ssid_len;
+
+	/* see if we have the bss already */
+	bss = cfg80211_get_conn_bss(wdev);
+
+	if (prev_bssid) {
+		memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
+		wdev->conn->prev_bssid_valid = true;
+	}
+
+	/* we're good if we have a matching bss struct */
+	if (bss) {
+		wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
+		err = cfg80211_conn_do_work(wdev);
+		cfg80211_put_bss(wdev->wiphy, bss);
+	} else {
+		/* otherwise we'll need to scan for the AP first */
+		err = cfg80211_conn_scan(wdev);
+
+		/*
+		 * If we can't scan right now, then we need to scan again
+		 * after the current scan finished, since the parameters
+		 * changed (unless we find a good AP anyway).
+		 */
+		if (err == -EBUSY) {
+			err = 0;
+			wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
+		}
+	}
+
+	if (err)
+		cfg80211_sme_free(wdev);
+
+	return err;
+}
+
+static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+	int err;
+
+	if (!wdev->conn)
+		return 0;
+
+	if (!rdev->ops->deauth)
+		return -EOPNOTSUPP;
+
+	if (wdev->conn->state == CFG80211_CONN_SCANNING ||
+	    wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) {
+		err = 0;
+		goto out;
+	}
+
+	/* wdev->conn->params.bssid must be set if > SCANNING */
+	err = cfg80211_mlme_deauth(rdev, wdev->netdev,
+				   wdev->conn->params.bssid,
+				   NULL, 0, reason, false);
+ out:
+	cfg80211_sme_free(wdev);
+	return err;
+}
+
+/*
+ * code shared for in-device and software SME
+ */
+
+static bool cfg80211_is_all_idle(void)
+{
+	struct cfg80211_registered_device *rdev;
+	struct wireless_dev *wdev;
+	bool is_all_idle = true;
+
+	/*
+	 * All devices must be idle as otherwise if you are actively
+	 * scanning some new beacon hints could be learned and would
+	 * count as new regulatory hints.
+	 */
+	list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
+		list_for_each_entry(wdev, &rdev->wdev_list, list) {
+			wdev_lock(wdev);
+			if (wdev->conn || wdev->current_bss)
+				is_all_idle = false;
+			wdev_unlock(wdev);
+		}
+	}
+
+	return is_all_idle;
+}
+
+static void disconnect_work(struct work_struct *work)
+{
+	rtnl_lock();
+	if (cfg80211_is_all_idle())
+		regulatory_hint_disconnect();
+	rtnl_unlock();
+}
+
+static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
+
+
+/*
+ * API calls for drivers implementing connect/disconnect and
+ * SME event handling
+ */
+
 void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 			       const u8 *req_ie, size_t req_ie_len,
 			       const u8 *resp_ie, size_t resp_ie_len,
@@ -424,9 +575,6 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 		    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
 		return;
 
-	if (wdev->sme_state != CFG80211_SME_CONNECTING)
-		return;
-
 	nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev,
 				    bssid, req_ie, req_ie_len,
 				    resp_ie, resp_ie_len,
@@ -463,15 +611,7 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 		wdev->current_bss = NULL;
 	}
 
-	if (wdev->conn)
-		wdev->conn->state = CFG80211_CONN_IDLE;
-
 	if (status != WLAN_STATUS_SUCCESS) {
-		wdev->sme_state = CFG80211_SME_IDLE;
-		if (wdev->conn)
-			kfree(wdev->conn->ie);
-		kfree(wdev->conn);
-		wdev->conn = NULL;
 		kfree(wdev->connect_keys);
 		wdev->connect_keys = NULL;
 		wdev->ssid_len = 0;
@@ -480,21 +620,16 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 	}
 
 	if (!bss)
-		bss = cfg80211_get_bss(wdev->wiphy,
-				       wdev->conn ? wdev->conn->params.channel :
-				       NULL,
-				       bssid,
+		bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
 				       wdev->ssid, wdev->ssid_len,
 				       WLAN_CAPABILITY_ESS,
 				       WLAN_CAPABILITY_ESS);
-
 	if (WARN_ON(!bss))
 		return;
 
 	cfg80211_hold_bss(bss_from_pub(bss));
 	wdev->current_bss = bss_from_pub(bss);
 
-	wdev->sme_state = CFG80211_SME_CONNECTED;
 	cfg80211_upload_connect_keys(wdev);
 
 	rcu_read_lock();
@@ -530,8 +665,6 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 	struct cfg80211_event *ev;
 	unsigned long flags;
 
-	CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING);
-
 	ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
 	if (!ev)
 		return;
@@ -572,13 +705,8 @@ void __cfg80211_roamed(struct wireless_dev *wdev,
 		    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
 		goto out;
 
-	if (wdev->sme_state != CFG80211_SME_CONNECTED)
-		goto out;
-
-	/* internal error -- how did we get to CONNECTED w/o BSS? */
-	if (WARN_ON(!wdev->current_bss)) {
+	if (WARN_ON(!wdev->current_bss))
 		goto out;
-	}
 
 	cfg80211_unhold_bss(wdev->current_bss);
 	cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
@@ -628,8 +756,6 @@ void cfg80211_roamed(struct net_device *dev,
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_bss *bss;
 
-	CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED);
-
 	bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid,
 			       wdev->ssid_len, WLAN_CAPABILITY_ESS,
 			       WLAN_CAPABILITY_ESS);
@@ -651,8 +777,6 @@ void cfg80211_roamed_bss(struct net_device *dev,
 	struct cfg80211_event *ev;
 	unsigned long flags;
 
-	CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED);
-
 	if (WARN_ON(!bss))
 		return;
 
@@ -694,25 +818,14 @@ void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
 		    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
 		return;
 
-	if (wdev->sme_state != CFG80211_SME_CONNECTED)
-		return;
-
 	if (wdev->current_bss) {
 		cfg80211_unhold_bss(wdev->current_bss);
 		cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
 	}
 
 	wdev->current_bss = NULL;
-	wdev->sme_state = CFG80211_SME_IDLE;
 	wdev->ssid_len = 0;
 
-	if (wdev->conn) {
-		kfree(wdev->conn->ie);
-		wdev->conn->ie = NULL;
-		kfree(wdev->conn);
-		wdev->conn = NULL;
-	}
-
 	nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
 
 	/*
@@ -741,8 +854,6 @@ void cfg80211_disconnected(struct net_device *dev, u16 reason,
 	struct cfg80211_event *ev;
 	unsigned long flags;
 
-	CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED);
-
 	ev = kzalloc(sizeof(*ev) + ie_len, gfp);
 	if (!ev)
 		return;
@@ -760,6 +871,9 @@ void cfg80211_disconnected(struct net_device *dev, u16 reason,
 }
 EXPORT_SYMBOL(cfg80211_disconnected);
 
+/*
+ * API calls for nl80211/wext compatibility code
+ */
 int cfg80211_connect(struct cfg80211_registered_device *rdev,
 		     struct net_device *dev,
 		     struct cfg80211_connect_params *connect,
@@ -767,14 +881,10 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
 		     const u8 *prev_bssid)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct cfg80211_bss *bss = NULL;
 	int err;
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	if (wdev->sme_state != CFG80211_SME_IDLE)
-		return -EALREADY;
-
 	if (WARN_ON(wdev->connect_keys)) {
 		kfree(wdev->connect_keys);
 		wdev->connect_keys = NULL;
@@ -810,105 +920,22 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
 		}
 	}
 
-	if (!rdev->ops->connect) {
-		if (!rdev->ops->auth || !rdev->ops->assoc)
-			return -EOPNOTSUPP;
-
-		if (WARN_ON(wdev->conn))
-			return -EINPROGRESS;
-
-		wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
-		if (!wdev->conn)
-			return -ENOMEM;
-
-		/*
-		 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
-		 */
-		memcpy(&wdev->conn->params, connect, sizeof(*connect));
-		if (connect->bssid) {
-			wdev->conn->params.bssid = wdev->conn->bssid;
-			memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
-		}
+	wdev->connect_keys = connkeys;
+	memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
+	wdev->ssid_len = connect->ssid_len;
 
-		if (connect->ie) {
-			wdev->conn->ie = kmemdup(connect->ie, connect->ie_len,
-						GFP_KERNEL);
-			wdev->conn->params.ie = wdev->conn->ie;
-			if (!wdev->conn->ie) {
-				kfree(wdev->conn);
-				wdev->conn = NULL;
-				return -ENOMEM;
-			}
-		}
-
-		if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
-			wdev->conn->auto_auth = true;
-			/* start with open system ... should mostly work */
-			wdev->conn->params.auth_type =
-				NL80211_AUTHTYPE_OPEN_SYSTEM;
-		} else {
-			wdev->conn->auto_auth = false;
-		}
-
-		memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
-		wdev->ssid_len = connect->ssid_len;
-		wdev->conn->params.ssid = wdev->ssid;
-		wdev->conn->params.ssid_len = connect->ssid_len;
-
-		/* see if we have the bss already */
-		bss = cfg80211_get_conn_bss(wdev);
-
-		wdev->sme_state = CFG80211_SME_CONNECTING;
-		wdev->connect_keys = connkeys;
-
-		if (prev_bssid) {
-			memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
-			wdev->conn->prev_bssid_valid = true;
-		}
-
-		/* we're good if we have a matching bss struct */
-		if (bss) {
-			wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
-			err = cfg80211_conn_do_work(wdev);
-			cfg80211_put_bss(wdev->wiphy, bss);
-		} else {
-			/* otherwise we'll need to scan for the AP first */
-			err = cfg80211_conn_scan(wdev);
-			/*
-			 * If we can't scan right now, then we need to scan again
-			 * after the current scan finished, since the parameters
-			 * changed (unless we find a good AP anyway).
-			 */
-			if (err == -EBUSY) {
-				err = 0;
-				wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
-			}
-		}
-		if (err) {
-			kfree(wdev->conn->ie);
-			kfree(wdev->conn);
-			wdev->conn = NULL;
-			wdev->sme_state = CFG80211_SME_IDLE;
-			wdev->connect_keys = NULL;
-			wdev->ssid_len = 0;
-		}
-
-		return err;
-	} else {
-		wdev->sme_state = CFG80211_SME_CONNECTING;
-		wdev->connect_keys = connkeys;
+	if (!rdev->ops->connect)
+		err = cfg80211_sme_connect(wdev, connect, prev_bssid);
+	else
 		err = rdev_connect(rdev, dev, connect);
-		if (err) {
-			wdev->connect_keys = NULL;
-			wdev->sme_state = CFG80211_SME_IDLE;
-			return err;
-		}
 
-		memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
-		wdev->ssid_len = connect->ssid_len;
-
-		return 0;
+	if (err) {
+		wdev->connect_keys = NULL;
+		wdev->ssid_len = 0;
+		return err;
 	}
+
+	return 0;
 }
 
 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
@@ -919,78 +946,17 @@ int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	if (wdev->sme_state == CFG80211_SME_IDLE)
-		return -EINVAL;
-
 	kfree(wdev->connect_keys);
 	wdev->connect_keys = NULL;
 
-	if (!rdev->ops->disconnect) {
-		if (!rdev->ops->deauth)
-			return -EOPNOTSUPP;
-
-		/* was it connected by userspace SME? */
-		if (!wdev->conn) {
-			cfg80211_mlme_down(rdev, dev);
-			goto disconnect;
-		}
-
-		if (wdev->sme_state == CFG80211_SME_CONNECTING &&
-		    (wdev->conn->state == CFG80211_CONN_SCANNING ||
-		     wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) {
-			wdev->sme_state = CFG80211_SME_IDLE;
-			kfree(wdev->conn->ie);
-			kfree(wdev->conn);
-			wdev->conn = NULL;
-			wdev->ssid_len = 0;
-			return 0;
-		}
-
-		/* wdev->conn->params.bssid must be set if > SCANNING */
-		err = cfg80211_mlme_deauth(rdev, dev,
-					     wdev->conn->params.bssid,
-					     NULL, 0, reason, false);
-		if (err)
-			return err;
+	if (wdev->conn) {
+		err = cfg80211_sme_disconnect(wdev, reason);
+	} else if (!rdev->ops->disconnect) {
+		cfg80211_mlme_down(rdev, dev);
+		err = 0;
 	} else {
 		err = rdev_disconnect(rdev, dev, reason);
-		if (err)
-			return err;
 	}
 
- disconnect:
-	if (wdev->sme_state == CFG80211_SME_CONNECTED)
-		__cfg80211_disconnected(dev, NULL, 0, 0, false);
-	else if (wdev->sme_state == CFG80211_SME_CONNECTING)
-		__cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0,
-					  WLAN_STATUS_UNSPECIFIED_FAILURE,
-					  wextev, NULL);
-
-	return 0;
-}
-
-void cfg80211_sme_disassoc(struct net_device *dev,
-			   struct cfg80211_internal_bss *bss)
-{
-	struct wireless_dev *wdev = dev->ieee80211_ptr;
-	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
-	u8 bssid[ETH_ALEN];
-
-	ASSERT_WDEV_LOCK(wdev);
-
-	if (!wdev->conn)
-		return;
-
-	if (wdev->conn->state == CFG80211_CONN_IDLE)
-		return;
-
-	/*
-	 * Ok, so the association was made by this SME -- we don't
-	 * want it any more so deauthenticate too.
-	 */
-
-	memcpy(bssid, bss->pub.bssid, ETH_ALEN);
-
-	cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
-			     WLAN_REASON_DEAUTH_LEAVING, false);
+	return err;
 }
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index a53f840..14c9a25 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -89,7 +89,7 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
 
 	wdev_lock(wdev);
 
-	if (wdev->sme_state != CFG80211_SME_IDLE) {
+	if (wdev->conn) {
 		bool event = true;
 
 		if (wdev->wext.connect.channel == chan) {
@@ -188,7 +188,7 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
 
 	err = 0;
 
-	if (wdev->sme_state != CFG80211_SME_IDLE) {
+	if (wdev->conn) {
 		bool event = true;
 
 		if (wdev->wext.connect.ssid && len &&
@@ -277,7 +277,7 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
 
 	wdev_lock(wdev);
 
-	if (wdev->sme_state != CFG80211_SME_IDLE) {
+	if (wdev->conn) {
 		err = 0;
 		/* both automatic */
 		if (!bssid && !wdev->wext.connect.bssid)
@@ -364,7 +364,7 @@ int cfg80211_wext_siwgenie(struct net_device *dev,
 	wdev->wext.ie = ie;
 	wdev->wext.ie_len = ie_len;
 
-	if (wdev->sme_state != CFG80211_SME_IDLE) {
+	if (wdev->conn) {
 		err = cfg80211_disconnect(rdev, dev,
 					  WLAN_REASON_DEAUTH_LEAVING, false);
 		if (err)
-- 
cgit v0.10.2


From 6767583175c98d1bf93d45f6a4c61e4a25ee1ea3 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 29 May 2013 09:09:30 +0300
Subject: iwlwifi: mvm: fix the LUT for BT Coex

There was a typo in the Loose LUT for BT Coex.
Fix that.

Reported-by: Roi Cohen <roi.cohen@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index f03655f..9a4d94a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -174,7 +174,7 @@ static const __le32 iwl_tight_lookup[BT_COEX_LUT_SIZE] = {
 static const __le32 iwl_loose_lookup[BT_COEX_LUT_SIZE] = {
 	cpu_to_le32(0xaaaaaaaa),
 	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaeaaaaaa),
+	cpu_to_le32(0xaaaaaaaa),
 	cpu_to_le32(0xaaaaaaaa),
 	cpu_to_le32(0xcc00ff28),
 	cpu_to_le32(0x0000aaaa),
-- 
cgit v0.10.2


From e96d551f4bc6a13942aa5837ca6739c61d540945 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 28 May 2013 21:31:50 +0300
Subject: iwlwifi: mvm: limit the length of the AMPDU when BT is running

This holds for existing BA agreements.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 6a050c6..7dfc212 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2782,6 +2782,13 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm,
 
 	lq_cmd->agg_time_limit =
 		cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
+
+	/*
+	 * overwrite if needed, pass aggregation time limit
+	 * to uCode in uSec - This is racy - but heh, at least it helps...
+	 */
+	if (mvm && BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >= 2)
+		lq_cmd->agg_time_limit = cpu_to_le16(1200);
 }
 
 static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
-- 
cgit v0.10.2


From 7c8e4159bac47354ea9eee40ac7a0f713c0be5db Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 28 May 2013 21:36:16 +0300
Subject: iwlwifi: mvm: don't start BA agreement when BT is active

Otherwise WiFi would kill BT.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 7dfc212..2026999 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -401,6 +401,17 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_mvm *mvm,
 
 	load = rs_tl_get_load(lq_data, tid);
 
+	/*
+	 * Don't create TX aggregation sessions when in high
+	 * BT traffic, as they would just be disrupted by BT.
+	 */
+	if (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >= 2) {
+		IWL_DEBUG_COEX(mvm, "BT traffic (%d), no aggregation allowed\n",
+			       BT_MBOX_MSG(&mvm->last_bt_notif,
+					   3, TRAFFIC_LOAD));
+		return ret;
+	}
+
 	if ((iwlwifi_mod_params.auto_agg) || (load > IWL_AGG_LOAD_THRESHOLD)) {
 		IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n",
 			     sta->addr, tid);
-- 
cgit v0.10.2


From 36946ce69abe8b5c7043708f832ca179dd6e4f64 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 28 May 2013 23:12:47 +0300
Subject: iwlwifi: mvm: don't enable MIMO when BT is active

Another step in the rate control / BT Coex integration

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 2026999..d6beec7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1530,6 +1530,29 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
+	switch (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
+		/* nothing */
+		break;
+	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
+		/* avoid antenna B unless MIMO */
+		if (tbl->action == IWL_SISO_SWITCH_ANTENNA2)
+			tbl->action = IWL_SISO_SWITCH_MIMO2_AB;
+		break;
+	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
+	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
+		/* avoid antenna B and MIMO */
+		valid_tx_ant =
+			first_antenna(iwl_fw_valid_tx_ant(mvm->fw));
+		if (tbl->action != IWL_SISO_SWITCH_ANTENNA1)
+			tbl->action = IWL_SISO_SWITCH_ANTENNA1;
+		break;
+	default:
+		IWL_ERR(mvm, "Invalid BT load %d",
+			BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD));
+		break;
+	}
+
 	start_action = tbl->action;
 	while (1) {
 		lq_sta->action_counter++;
@@ -1543,7 +1566,9 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 			     tx_chains_num <= 2))
 				break;
 
-			if (window->success_ratio >= IWL_RS_GOOD_RATIO)
+			if (window->success_ratio >= IWL_RS_GOOD_RATIO &&
+			    BT_MBOX_MSG(&mvm->last_bt_notif, 3,
+					TRAFFIC_LOAD) == 0)
 				break;
 
 			memcpy(search_tbl, tbl, sz);
@@ -1665,6 +1690,28 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
+	switch (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
+		/* nothing */
+		break;
+	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
+	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
+		/* avoid antenna B and MIMO */
+		if (tbl->action != IWL_MIMO2_SWITCH_SISO_A)
+			tbl->action = IWL_MIMO2_SWITCH_SISO_A;
+		break;
+	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
+		/* avoid antenna B unless MIMO */
+		if (tbl->action == IWL_MIMO2_SWITCH_SISO_B ||
+		    tbl->action == IWL_MIMO2_SWITCH_SISO_C)
+			tbl->action = IWL_MIMO2_SWITCH_SISO_A;
+		break;
+	default:
+		IWL_ERR(mvm, "Invalid BT load %d",
+			BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD));
+		break;
+	}
+
 	start_action = tbl->action;
 	while (1) {
 		lq_sta->action_counter++;
@@ -1802,6 +1849,28 @@ static int rs_move_mimo3_to_other(struct iwl_mvm *mvm,
 	int ret;
 	u8 update_search_tbl_counter = 0;
 
+	switch (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
+		/* nothing */
+		break;
+	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
+	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
+		/* avoid antenna B and MIMO */
+		if (tbl->action != IWL_MIMO3_SWITCH_SISO_A)
+			tbl->action = IWL_MIMO3_SWITCH_SISO_A;
+		break;
+	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
+		/* avoid antenna B unless MIMO */
+		if (tbl->action == IWL_MIMO3_SWITCH_SISO_B ||
+		    tbl->action == IWL_MIMO3_SWITCH_SISO_C)
+			tbl->action = IWL_MIMO3_SWITCH_SISO_A;
+		break;
+	default:
+		IWL_ERR(mvm, "Invalid BT load %d",
+			BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD));
+		break;
+	}
+
 	start_action = tbl->action;
 	while (1) {
 		lq_sta->action_counter++;
@@ -2313,6 +2382,32 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 	     (current_tpt > (100 * tbl->expected_tpt[low]))))
 		scale_action = 0;
 
+	if ((BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >=
+	     IWL_BT_COEX_TRAFFIC_LOAD_HIGH) &&
+	     (is_mimo2(tbl->lq_type) || is_mimo3(tbl->lq_type))) {
+		if (lq_sta->last_bt_traffic >
+		    BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+			/*
+			 * don't set scale_action, don't want to scale up if
+			 * the rate scale doesn't otherwise think that is a
+			 * good idea.
+			 */
+		} else if (lq_sta->last_bt_traffic <=
+			   BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+			scale_action = -1;
+		}
+	}
+	lq_sta->last_bt_traffic =
+		BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD);
+
+	if ((BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >=
+	     IWL_BT_COEX_TRAFFIC_LOAD_HIGH) &&
+	     (is_mimo2(tbl->lq_type) || is_mimo3(tbl->lq_type))) {
+		/* search for a new modulation */
+		rs_stay_in_table(lq_sta, true);
+		goto lq_update;
+	}
+
 	switch (scale_action) {
 	case -1:
 		/* Decrease starting rate, update uCode's rate table */
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index f66155a..cff4f6d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -358,6 +358,18 @@ struct iwl_lq_sta {
 	u8 last_bt_traffic;
 };
 
+enum iwl_bt_coex_profile_traffic_load {
+	IWL_BT_COEX_TRAFFIC_LOAD_NONE		= 0,
+	IWL_BT_COEX_TRAFFIC_LOAD_LOW		= 1,
+	IWL_BT_COEX_TRAFFIC_LOAD_HIGH		= 2,
+	IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS	= 3,
+/*
+ * There are no more even though below is a u8, the
+ * indication from the BT device only has two bits.
+ */
+};
+
+
 static inline u8 num_of_ant(u8 mask)
 {
 	return  !!((mask) & ANT_A) +
-- 
cgit v0.10.2


From 1094fa2646385a3bdbcdac5f2f270836d998b255 Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Sun, 2 Jun 2013 12:40:34 +0300
Subject: iwlwifi: don't return -ERFKILL if SEND_IF_RFKILL is set

When CMD_SEND_IN_RFKILL is set, it is perfectly legitimate
to send a host command while RFKILL is asserted. In this
case, the host command sending functions should return 0
even if RFKILL is asserted.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index a35c6ae..f65da19 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1527,7 +1527,8 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 		goto cancel;
 	}
 
-	if (test_bit(STATUS_RFKILL, &trans_pcie->status)) {
+	if (!(cmd->flags & CMD_SEND_IN_RFKILL) &&
+	    test_bit(STATUS_RFKILL, &trans_pcie->status)) {
 		IWL_DEBUG_RF_KILL(trans, "RFKILL in SYNC CMD... no rsp\n");
 		ret = -ERFKILL;
 		goto cancel;
-- 
cgit v0.10.2


From 8d683b79487c40d2a74ab9c484bde1929e016579 Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Thu, 30 May 2013 07:31:01 +0300
Subject: iwlwifi: mvm: Fix quota command settings

According to the FW implementation, the quota command should
have a valid entry for each active binding (where 'active' in
this context means that the binding is known to the FW). In case
the binding should not get any quota, the 'quota' should be set
to zero.

Not setting an 0 quota for an active binding when all the MACs
in the binding are idle, i.e., not associated in case of managed
interface, will result in preventing the FW scheduler from entering
IDLE state and the FW from transitioning to low PS.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/quota.c b/drivers/net/wireless/iwlwifi/mvm/quota.c
index a1e3e92..29d49cf 100644
--- a/drivers/net/wireless/iwlwifi/mvm/quota.c
+++ b/drivers/net/wireless/iwlwifi/mvm/quota.c
@@ -169,27 +169,34 @@ int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif)
 			num_active_bindings++;
 	}
 
-	if (!num_active_bindings)
-		goto send_cmd;
-
-	quota = IWL_MVM_MAX_QUOTA / num_active_bindings;
-	quota_rem = IWL_MVM_MAX_QUOTA % num_active_bindings;
+	quota = 0;
+	quota_rem = 0;
+	if (num_active_bindings) {
+		quota = IWL_MVM_MAX_QUOTA / num_active_bindings;
+		quota_rem = IWL_MVM_MAX_QUOTA % num_active_bindings;
+	}
 
 	for (idx = 0, i = 0; i < MAX_BINDINGS; i++) {
-		if (data.n_interfaces[i] <= 0)
+		if (data.colors[i] < 0)
 			continue;
 
 		cmd.quotas[idx].id_and_color =
 			cpu_to_le32(FW_CMD_ID_AND_COLOR(i, data.colors[i]));
-		cmd.quotas[idx].quota = cpu_to_le32(quota);
-		cmd.quotas[idx].max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
+
+		if (data.n_interfaces[i] <= 0) {
+			cmd.quotas[idx].quota = cpu_to_le32(0);
+			cmd.quotas[idx].max_duration = cpu_to_le32(0);
+		} else {
+			cmd.quotas[idx].quota = cpu_to_le32(quota);
+			cmd.quotas[idx].max_duration =
+				cpu_to_le32(IWL_MVM_MAX_QUOTA);
+		}
 		idx++;
 	}
 
 	/* Give the remainder of the session to the first binding */
 	le32_add_cpu(&cmd.quotas[0].quota, quota_rem);
 
-send_cmd:
 	ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC,
 				   sizeof(cmd), &cmd);
 	if (ret)
-- 
cgit v0.10.2


From 497b49d2f690cdfaae5292e30ea5cd9bb469090c Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 2 Jun 2013 20:54:48 +0300
Subject: iwlwifi: mvm: reorder Rx handler for performance purposes

Since SCAN related handlers are much less likely than
beacon related handlers, reorder between them.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index d7a199b..af79a14 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -215,15 +215,16 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 	RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false),
 	RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false),
 	RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false),
-	RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
-
-	RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
-	RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false),
 
 	RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
 	RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, false),
 	RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
 
+	RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
+
+	RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
+	RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false),
+
 	RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
 	RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
 
-- 
cgit v0.10.2


From 86a91ec757338edbce51de5dabd7afb0366f485c Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 26 May 2013 20:47:53 +0300
Subject: iwlwifi: mvm: correctly configure MCAST in AP mode

The AP mode needs to use the MCAST fifo for the MCAST
frames sent after the DTIM. This fifo needs to be
configured with the same parameters as the VOICE FIFO.

A separate SCD queue is mapped to this fifo - the cab_queue
(cab stands for Content After Beacon). This queue isn't
connected to any station, but rather to the MAC context.
This queue should (and is already) be set as the MCAST
queue - this is part of the of MAC context command.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
index d68640e..98b1feb 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
@@ -71,7 +71,13 @@
 #define MAC_INDEX_MIN_DRIVER	0
 #define NUM_MAC_INDEX_DRIVER	MAC_INDEX_AUX
 
-#define AC_NUM	4 /* Number of access categories */
+enum iwl_ac {
+	AC_BK,
+	AC_BE,
+	AC_VI,
+	AC_VO,
+	AC_NUM,
+};
 
 /**
  * enum iwl_mac_protection_flags - MAC context flags
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index b4e8e59..46c7c05 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -365,7 +365,7 @@ int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 		break;
 	case NL80211_IFTYPE_AP:
 		iwl_trans_ac_txq_enable(mvm->trans, vif->cab_queue,
-					IWL_MVM_TX_FIFO_VO);
+					IWL_MVM_TX_FIFO_MCAST);
 		/* fall through */
 	default:
 		for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
@@ -553,6 +553,10 @@ static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
 		cmd->ac[i].fifos_mask = BIT(iwl_mvm_ac_to_tx_fifo[i]);
 	}
 
+	/* in AP mode, the MCAST FIFO takes the EDCA params from VO */
+	if (vif->type == NL80211_IFTYPE_AP)
+		cmd->ac[AC_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST);
+
 	if (vif->bss_conf.qos)
 		cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA);
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 384259b..4e10aae 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -88,6 +88,7 @@ enum iwl_mvm_tx_fifo {
 	IWL_MVM_TX_FIFO_BE,
 	IWL_MVM_TX_FIFO_VI,
 	IWL_MVM_TX_FIFO_VO,
+	IWL_MVM_TX_FIFO_MCAST = 5,
 };
 
 extern struct ieee80211_ops iwl_mvm_hw_ops;
-- 
cgit v0.10.2


From 4bf881f5d55c2bb704771287613c8807ef181b3c Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Wed, 29 May 2013 10:19:50 +0300
Subject: iwlwifi: mvm: Change location of vif_count verification for PM

Currently vif_count verification for power management enablement appear
in different places. Move these verifications to one place in
iwl_mvm_update_power_mode().

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 12337aa..c13559b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -597,21 +597,11 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 	mvmvif->phy_ctxt = NULL;
 	iwl_mvm_mac_ctxt_remove(mvm, vif);
  out_release:
-	/*
-	 * TODO: remove this temporary code.
-	 * Currently MVM FW supports power management only on single MAC.
-	 * Check if only one additional interface remains after releasing
-	 * current one. Update power mode on the remaining interface.
-	 */
 	if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
 		mvm->vif_count--;
-	IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
-			   mvm->vif_count);
-	if (mvm->vif_count == 1) {
-		ieee80211_iterate_active_interfaces(
-					mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
-					iwl_mvm_power_update_iterator, mvm);
-	}
+	ieee80211_iterate_active_interfaces(
+		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+		iwl_mvm_power_update_iterator, mvm);
 	iwl_mvm_mac_ctxt_release(mvm, vif);
  out_unlock:
 	mutex_unlock(&mvm->mutex);
@@ -781,19 +771,9 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 		iwl_mvm_remove_time_event(mvm, mvmvif,
 					  &mvmvif->time_event_data);
 	} else if (changes & BSS_CHANGED_PS) {
-		/*
-		 * TODO: remove this temporary code.
-		 * Currently MVM FW supports power management only on single
-		 * MAC. Avoid power mode update if more than one interface
-		 * is active.
-		 */
-		IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
-				   mvm->vif_count);
-		if (mvm->vif_count == 1) {
-			ret = iwl_mvm_power_update_mode(mvm, vif);
-			if (ret)
-				IWL_ERR(mvm, "failed to update power mode\n");
-		}
+		ret = iwl_mvm_power_update_mode(mvm, vif);
+		if (ret)
+			IWL_ERR(mvm, "failed to update power mode\n");
 	}
 }
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 67cf24a..6cb98ce 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -246,6 +246,17 @@ int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 		return 0;
 
+	/*
+	 * TODO: The following vif_count verification is temporary condition.
+	 * Avoid power mode update if more than one interface is currently
+	 * active. Remove this condition when FW will support power management
+	 * on multiple MACs.
+	 */
+	IWL_DEBUG_POWER(mvm, "Currently %d interfaces active\n",
+			mvm->vif_count);
+	if (mvm->vif_count > 1)
+		return 0;
+
 	iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 	iwl_mvm_power_log(mvm, &cmd);
 
-- 
cgit v0.10.2


From 3430140ad9da9ec1caaf800af6b0378351919f9c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 4 Jun 2013 14:35:07 +0200
Subject: regulatory: use proper enum return value

get_reg_request_treatment() returns 0 in one case but is
defined to return an enum, use the proper value REG_REQ_OK.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index e1d6749..5a24c98 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1345,7 +1345,7 @@ get_reg_request_treatment(struct wiphy *wiphy,
 				return REG_REQ_OK;
 			return REG_REQ_ALREADY_SET;
 		}
-		return 0;
+		return REG_REQ_OK;
 	case NL80211_REGDOM_SET_BY_DRIVER:
 		if (lr->initiator == NL80211_REGDOM_SET_BY_CORE) {
 			if (regdom_changes(pending_request->alpha2))
-- 
cgit v0.10.2


From 75698b17ac3b681f4345a9be48b147381d17266d Mon Sep 17 00:00:00 2001
From: Lorenzo Colitti <lorenzo@google.com>
Date: Fri, 31 May 2013 15:05:47 +0000
Subject: Clean up indentation in net/ipv6/transp_v6.h

Reduce the indentation of most of the functions and make it a
bit more consistent. This allows longer function and arg names
to be consistently indented without wrapping.

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index eb40e71..2d9d0e3 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -7,47 +7,47 @@
  *	IPv6 transport protocols
  */
 
-extern struct proto rawv6_prot;
-extern struct proto udpv6_prot;
-extern struct proto udplitev6_prot;
-extern struct proto tcpv6_prot;
-extern struct proto pingv6_prot;
+extern struct proto     rawv6_prot;
+extern struct proto     udpv6_prot;
+extern struct proto     udplitev6_prot;
+extern struct proto     tcpv6_prot;
+extern struct proto     pingv6_prot;
 
 struct flowi6;
 
 /* extension headers */
-extern int				ipv6_exthdrs_init(void);
-extern void				ipv6_exthdrs_exit(void);
-extern int				ipv6_frag_init(void);
-extern void				ipv6_frag_exit(void);
+extern int		ipv6_exthdrs_init(void);
+extern void		ipv6_exthdrs_exit(void);
+extern int		ipv6_frag_init(void);
+extern void		ipv6_frag_exit(void);
 
 /* transport protocols */
-extern int				pingv6_init(void);
-extern void				pingv6_exit(void);
-extern int				rawv6_init(void);
-extern void				rawv6_exit(void);
-extern int				udpv6_init(void);
-extern void				udpv6_exit(void);
-extern int 				udplitev6_init(void);
-extern void 				udplitev6_exit(void);
-extern int				tcpv6_init(void);
-extern void				tcpv6_exit(void);
-
-extern int				udpv6_connect(struct sock *sk,
-						      struct sockaddr *uaddr,
-						      int addr_len);
-
-extern int			ip6_datagram_recv_ctl(struct sock *sk,
-						      struct msghdr *msg,
-						      struct sk_buff *skb);
-
-extern int			ip6_datagram_send_ctl(struct net *net,
-						      struct sock *sk,
-						      struct msghdr *msg,
-						      struct flowi6 *fl6,
-						      struct ipv6_txoptions *opt,
-						      int *hlimit, int *tclass,
-						      int *dontfrag);
+extern int		pingv6_init(void);
+extern void		pingv6_exit(void);
+extern int		rawv6_init(void);
+extern void		rawv6_exit(void);
+extern int		udpv6_init(void);
+extern void		udpv6_exit(void);
+extern int		udplitev6_init(void);
+extern void		udplitev6_exit(void);
+extern int		tcpv6_init(void);
+extern void		tcpv6_exit(void);
+
+extern int		udpv6_connect(struct sock *sk,
+				      struct sockaddr *uaddr,
+				      int addr_len);
+
+extern int		ip6_datagram_recv_ctl(struct sock *sk,
+					      struct msghdr *msg,
+					      struct sk_buff *skb);
+
+extern int		ip6_datagram_send_ctl(struct net *net,
+					      struct sock *sk,
+					      struct msghdr *msg,
+					      struct flowi6 *fl6,
+					      struct ipv6_txoptions *opt,
+					      int *hlimit, int *tclass,
+					      int *dontfrag);
 
 #define		LOOPBACK4_IPV6		cpu_to_be32(0x7f000006)
 
-- 
cgit v0.10.2


From 17ef66afc0bdbbdc5c526db5e24bdd2dc3df1205 Mon Sep 17 00:00:00 2001
From: Lorenzo Colitti <lorenzo@google.com>
Date: Fri, 31 May 2013 15:05:48 +0000
Subject: net: ipv6: Unify {raw,udp}6_sock_seq_show.

udp6_sock_seq_show and raw6_sock_seq_show are identical, except
the UDP version displays ports and the raw version displays the
protocol. Refactor most of the code in these two functions into
a new common ip6_dgram_sock_seq_show function, in preparation
for using it to display ICMPv6 sockets as well.

Also reduce the indentation in parts of include/net/transp_v6.h
to improve readability.

Compiles and displays reasonable results with CONFIG_IPV6={n,m,y}

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index 2d9d0e3..6dddc08 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -49,6 +49,12 @@ extern int		ip6_datagram_send_ctl(struct net *net,
 					      int *hlimit, int *tclass,
 					      int *dontfrag);
 
+extern void		ip6_dgram_sock_seq_show(struct seq_file *seq,
+						struct sock *sp,
+						__u16 srcp,
+						__u16 destp,
+						int bucket);
+
 #define		LOOPBACK4_IPV6		cpu_to_be32(0x7f000006)
 
 /*
@@ -58,4 +64,11 @@ extern const struct inet_connection_sock_af_ops ipv4_specific;
 
 extern void inet6_destroy_sock(struct sock *sk);
 
+#define IPV6_SEQ_DGRAM_HEADER \
+			   "  sl  "					\
+			   "local_address                         "	\
+			   "remote_address                        "	\
+			   "st tx_queue rx_queue tr tm->when retrnsmt"	\
+			   "   uid  timeout inode ref pointer drops\n"
+
 #endif
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 4b56cbb..197e6f4 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -879,3 +879,30 @@ exit_f:
 	return err;
 }
 EXPORT_SYMBOL_GPL(ip6_datagram_send_ctl);
+
+void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
+			     __u16 srcp, __u16 destp, int bucket)
+{
+	struct ipv6_pinfo *np = inet6_sk(sp);
+	const struct in6_addr *dest, *src;
+
+	dest  = &np->daddr;
+	src   = &np->rcv_saddr;
+	seq_printf(seq,
+		   "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
+		   "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n",
+		   bucket,
+		   src->s6_addr32[0], src->s6_addr32[1],
+		   src->s6_addr32[2], src->s6_addr32[3], srcp,
+		   dest->s6_addr32[0], dest->s6_addr32[1],
+		   dest->s6_addr32[2], dest->s6_addr32[3], destp,
+		   sp->sk_state,
+		   sk_wmem_alloc_get(sp),
+		   sk_rmem_alloc_get(sp),
+		   0, 0L, 0,
+		   from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
+		   0,
+		   sock_i_ino(sp),
+		   atomic_read(&sp->sk_refcnt), sp,
+		   atomic_read(&sp->sk_drops));
+}
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 4f8886a..c45f7a5 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -1227,45 +1227,16 @@ struct proto rawv6_prot = {
 };
 
 #ifdef CONFIG_PROC_FS
-static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
-{
-	struct ipv6_pinfo *np = inet6_sk(sp);
-	const struct in6_addr *dest, *src;
-	__u16 destp, srcp;
-
-	dest  = &np->daddr;
-	src   = &np->rcv_saddr;
-	destp = 0;
-	srcp  = inet_sk(sp)->inet_num;
-	seq_printf(seq,
-		   "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
-		   "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n",
-		   i,
-		   src->s6_addr32[0], src->s6_addr32[1],
-		   src->s6_addr32[2], src->s6_addr32[3], srcp,
-		   dest->s6_addr32[0], dest->s6_addr32[1],
-		   dest->s6_addr32[2], dest->s6_addr32[3], destp,
-		   sp->sk_state,
-		   sk_wmem_alloc_get(sp),
-		   sk_rmem_alloc_get(sp),
-		   0, 0L, 0,
-		   from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
-		   0,
-		   sock_i_ino(sp),
-		   atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
-}
-
 static int raw6_seq_show(struct seq_file *seq, void *v)
 {
-	if (v == SEQ_START_TOKEN)
-		seq_printf(seq,
-			   "  sl  "
-			   "local_address                         "
-			   "remote_address                        "
-			   "st tx_queue rx_queue tr tm->when retrnsmt"
-			   "   uid  timeout inode ref pointer drops\n");
-	else
-		raw6_sock_seq_show(seq, v, raw_seq_private(seq)->bucket);
+	if (v == SEQ_START_TOKEN) {
+		seq_puts(seq, IPV6_SEQ_DGRAM_HEADER);
+	} else {
+		struct sock *sp = v;
+		__u16 srcp  = inet_sk(sp)->inet_num;
+		ip6_dgram_sock_seq_show(seq, v, srcp, 0,
+					raw_seq_private(seq)->bucket);
+	}
 	return 0;
 }
 
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 42923b1..b580853 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1359,48 +1359,17 @@ static const struct inet6_protocol udpv6_protocol = {
 
 /* ------------------------------------------------------------------------ */
 #ifdef CONFIG_PROC_FS
-
-static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket)
-{
-	struct inet_sock *inet = inet_sk(sp);
-	struct ipv6_pinfo *np = inet6_sk(sp);
-	const struct in6_addr *dest, *src;
-	__u16 destp, srcp;
-
-	dest  = &np->daddr;
-	src   = &np->rcv_saddr;
-	destp = ntohs(inet->inet_dport);
-	srcp  = ntohs(inet->inet_sport);
-	seq_printf(seq,
-		   "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
-		   "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n",
-		   bucket,
-		   src->s6_addr32[0], src->s6_addr32[1],
-		   src->s6_addr32[2], src->s6_addr32[3], srcp,
-		   dest->s6_addr32[0], dest->s6_addr32[1],
-		   dest->s6_addr32[2], dest->s6_addr32[3], destp,
-		   sp->sk_state,
-		   sk_wmem_alloc_get(sp),
-		   sk_rmem_alloc_get(sp),
-		   0, 0L, 0,
-		   from_kuid_munged(seq_user_ns(seq), sock_i_uid(sp)),
-		   0,
-		   sock_i_ino(sp),
-		   atomic_read(&sp->sk_refcnt), sp,
-		   atomic_read(&sp->sk_drops));
-}
-
 int udp6_seq_show(struct seq_file *seq, void *v)
 {
-	if (v == SEQ_START_TOKEN)
-		seq_printf(seq,
-			   "  sl  "
-			   "local_address                         "
-			   "remote_address                        "
-			   "st tx_queue rx_queue tr tm->when retrnsmt"
-			   "   uid  timeout inode ref pointer drops\n");
-	else
-		udp6_sock_seq_show(seq, v, ((struct udp_iter_state *)seq->private)->bucket);
+	if (v == SEQ_START_TOKEN) {
+		seq_puts(seq, IPV6_SEQ_DGRAM_HEADER);
+	} else {
+		int bucket = ((struct udp_iter_state *)seq->private)->bucket;
+		struct inet_sock *inet = inet_sk(v);
+		__u16 srcp = ntohs(inet->inet_sport);
+		__u16 destp = ntohs(inet->inet_dport);
+		ip6_dgram_sock_seq_show(seq, v, srcp, destp, bucket);
+	}
 	return 0;
 }
 
-- 
cgit v0.10.2


From 8cc785f6f429c2a3fb81745dc142cbd72a462c4a Mon Sep 17 00:00:00 2001
From: Lorenzo Colitti <lorenzo@google.com>
Date: Fri, 31 May 2013 15:05:49 +0000
Subject: net: ipv4: make the ping /proc code AF-independent

Introduce a ping_seq_afinfo structure (similar to its UDP
equivalent) and use it to make some of the ping /proc functions
address-family independent. Rename the remaining ping /proc
functions from ping_* to ping_v4_*.

Compiles and displays reasonable results with CONFIG_IPV6={n,m,y}

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ping.h b/include/net/ping.h
index 9242fa0..b9282f0 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -49,6 +49,7 @@ struct ping_table {
 struct ping_iter_state {
 	struct seq_net_private  p;
 	int			bucket;
+	sa_family_t		family;
 };
 
 extern struct proto ping_prot;
@@ -87,6 +88,13 @@ int  ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
 void ping_rcv(struct sk_buff *skb);
 
 #ifdef CONFIG_PROC_FS
+struct ping_seq_afinfo {
+	char				*name;
+	sa_family_t			family;
+	const struct file_operations	*seq_fops;
+	const struct seq_operations	seq_ops;
+};
+
 extern int __init ping_proc_init(void);
 extern void ping_proc_exit(void);
 #endif
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 71f6ad0..8c2da9b 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -1001,7 +1001,8 @@ static struct sock *ping_get_first(struct seq_file *seq, int start)
 			continue;
 
 		sk_nulls_for_each(sk, node, hslot) {
-			if (net_eq(sock_net(sk), net))
+			if (net_eq(sock_net(sk), net) &&
+			    sk->sk_family == state->family)
 				goto found;
 		}
 	}
@@ -1034,16 +1035,23 @@ static struct sock *ping_get_idx(struct seq_file *seq, loff_t pos)
 	return pos ? NULL : sk;
 }
 
-static void *ping_seq_start(struct seq_file *seq, loff_t *pos)
+static void *ping_seq_start(struct seq_file *seq, loff_t *pos,
+			    sa_family_t family)
 {
 	struct ping_iter_state *state = seq->private;
 	state->bucket = 0;
+	state->family = family;
 
 	read_lock_bh(&ping_table.lock);
 
 	return *pos ? ping_get_idx(seq, *pos-1) : SEQ_START_TOKEN;
 }
 
+static void *ping_v4_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	return ping_seq_start(seq, pos, AF_INET);
+}
+
 static void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	struct sock *sk;
@@ -1062,7 +1070,7 @@ static void ping_seq_stop(struct seq_file *seq, void *v)
 	read_unlock_bh(&ping_table.lock);
 }
 
-static void ping_format_sock(struct sock *sp, struct seq_file *f,
+static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
 		int bucket, int *len)
 {
 	struct inet_sock *inet = inet_sk(sp);
@@ -1083,7 +1091,7 @@ static void ping_format_sock(struct sock *sp, struct seq_file *f,
 		atomic_read(&sp->sk_drops), len);
 }
 
-static int ping_seq_show(struct seq_file *seq, void *v)
+static int ping_v4_seq_show(struct seq_file *seq, void *v)
 {
 	if (v == SEQ_START_TOKEN)
 		seq_printf(seq, "%-127s\n",
@@ -1094,22 +1102,23 @@ static int ping_seq_show(struct seq_file *seq, void *v)
 		struct ping_iter_state *state = seq->private;
 		int len;
 
-		ping_format_sock(v, seq, state->bucket, &len);
+		ping_v4_format_sock(v, seq, state->bucket, &len);
 		seq_printf(seq, "%*s\n", 127 - len, "");
 	}
 	return 0;
 }
 
-static const struct seq_operations ping_seq_ops = {
-	.show		= ping_seq_show,
-	.start		= ping_seq_start,
+static const struct seq_operations ping_v4_seq_ops = {
+	.show		= ping_v4_seq_show,
+	.start		= ping_v4_seq_start,
 	.next		= ping_seq_next,
 	.stop		= ping_seq_stop,
 };
 
 static int ping_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open_net(inode, file, &ping_seq_ops,
+	struct ping_seq_afinfo *afinfo = PDE_DATA(inode);
+	return seq_open_net(inode, file, &afinfo->seq_ops,
 			   sizeof(struct ping_iter_state));
 }
 
@@ -1120,46 +1129,58 @@ static const struct file_operations ping_seq_fops = {
 	.release	= seq_release_net,
 };
 
-static int ping_proc_register(struct net *net)
+static struct ping_seq_afinfo ping_v4_seq_afinfo = {
+	.name		= "icmp",
+	.family		= AF_INET,
+	.seq_fops	= &ping_seq_fops,
+	.seq_ops	= {
+		.start		= ping_v4_seq_start,
+		.show		= ping_v4_seq_show,
+		.next		= ping_seq_next,
+		.stop		= ping_seq_stop,
+	},
+};
+
+static int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo)
 {
 	struct proc_dir_entry *p;
-	int rc = 0;
-
-	p = proc_create("icmp", S_IRUGO, net->proc_net, &ping_seq_fops);
+	p = proc_create_data(afinfo->name, S_IRUGO, net->proc_net,
+			     afinfo->seq_fops, afinfo);
 	if (!p)
-		rc = -ENOMEM;
-	return rc;
+		return -ENOMEM;
+	return 0;
 }
 
-static void ping_proc_unregister(struct net *net)
+static void ping_proc_unregister(struct net *net,
+				 struct ping_seq_afinfo *afinfo)
 {
-	remove_proc_entry("icmp", net->proc_net);
+	remove_proc_entry(afinfo->name, net->proc_net);
 }
 
 
-static int __net_init ping_proc_init_net(struct net *net)
+static int __net_init ping_v4_proc_init_net(struct net *net)
 {
-	return ping_proc_register(net);
+	return ping_proc_register(net, &ping_v4_seq_afinfo);
 }
 
-static void __net_exit ping_proc_exit_net(struct net *net)
+static void __net_exit ping_v4_proc_exit_net(struct net *net)
 {
-	ping_proc_unregister(net);
+	ping_proc_unregister(net, &ping_v4_seq_afinfo);
 }
 
-static struct pernet_operations ping_net_ops = {
-	.init = ping_proc_init_net,
-	.exit = ping_proc_exit_net,
+static struct pernet_operations ping_v4_net_ops = {
+	.init = ping_v4_proc_init_net,
+	.exit = ping_v4_proc_exit_net,
 };
 
 int __init ping_proc_init(void)
 {
-	return register_pernet_subsys(&ping_net_ops);
+	return register_pernet_subsys(&ping_v4_net_ops);
 }
 
 void ping_proc_exit(void)
 {
-	unregister_pernet_subsys(&ping_net_ops);
+	unregister_pernet_subsys(&ping_v4_net_ops);
 }
 
 #endif
-- 
cgit v0.10.2


From d862e546142328d18377a4704be97f2ae301847a Mon Sep 17 00:00:00 2001
From: Lorenzo Colitti <lorenzo@google.com>
Date: Fri, 31 May 2013 15:05:50 +0000
Subject: net: ipv6: Implement /proc/net/icmp6.

The format is based on /proc/net/icmp and /proc/net/{udp,raw}6.

Compiles and displays reasonable results with CONFIG_IPV6={n,m,y}
Couldn't figure out how to test without CONFIG_PROC_FS enabled.

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ping.h b/include/net/ping.h
index b9282f0..db04802 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -95,6 +95,14 @@ struct ping_seq_afinfo {
 	const struct seq_operations	seq_ops;
 };
 
+extern const struct file_operations ping_seq_fops;
+
+void *ping_seq_start(struct seq_file *seq, loff_t *pos, sa_family_t family);
+void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos);
+void ping_seq_stop(struct seq_file *seq, void *v);
+int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo);
+void ping_proc_unregister(struct net *net, struct ping_seq_afinfo *afinfo);
+
 extern int __init ping_proc_init(void);
 extern void ping_proc_exit(void);
 #endif
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 8c2da9b..3552a45 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -1035,8 +1035,7 @@ static struct sock *ping_get_idx(struct seq_file *seq, loff_t pos)
 	return pos ? NULL : sk;
 }
 
-static void *ping_seq_start(struct seq_file *seq, loff_t *pos,
-			    sa_family_t family)
+void *ping_seq_start(struct seq_file *seq, loff_t *pos, sa_family_t family)
 {
 	struct ping_iter_state *state = seq->private;
 	state->bucket = 0;
@@ -1046,13 +1045,14 @@ static void *ping_seq_start(struct seq_file *seq, loff_t *pos,
 
 	return *pos ? ping_get_idx(seq, *pos-1) : SEQ_START_TOKEN;
 }
+EXPORT_SYMBOL_GPL(ping_seq_start);
 
 static void *ping_v4_seq_start(struct seq_file *seq, loff_t *pos)
 {
 	return ping_seq_start(seq, pos, AF_INET);
 }
 
-static void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	struct sock *sk;
 
@@ -1064,11 +1064,13 @@ static void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 	++*pos;
 	return sk;
 }
+EXPORT_SYMBOL_GPL(ping_seq_next);
 
-static void ping_seq_stop(struct seq_file *seq, void *v)
+void ping_seq_stop(struct seq_file *seq, void *v)
 {
 	read_unlock_bh(&ping_table.lock);
 }
+EXPORT_SYMBOL_GPL(ping_seq_stop);
 
 static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
 		int bucket, int *len)
@@ -1122,12 +1124,13 @@ static int ping_seq_open(struct inode *inode, struct file *file)
 			   sizeof(struct ping_iter_state));
 }
 
-static const struct file_operations ping_seq_fops = {
+const struct file_operations ping_seq_fops = {
 	.open		= ping_seq_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
 	.release	= seq_release_net,
 };
+EXPORT_SYMBOL_GPL(ping_seq_fops);
 
 static struct ping_seq_afinfo ping_v4_seq_afinfo = {
 	.name		= "icmp",
@@ -1141,7 +1144,7 @@ static struct ping_seq_afinfo ping_v4_seq_afinfo = {
 	},
 };
 
-static int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo)
+int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo)
 {
 	struct proc_dir_entry *p;
 	p = proc_create_data(afinfo->name, S_IRUGO, net->proc_net,
@@ -1150,13 +1153,13 @@ static int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo)
 		return -ENOMEM;
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ping_proc_register);
 
-static void ping_proc_unregister(struct net *net,
-				 struct ping_seq_afinfo *afinfo)
+void ping_proc_unregister(struct net *net, struct ping_seq_afinfo *afinfo)
 {
 	remove_proc_entry(afinfo->name, net->proc_net);
 }
-
+EXPORT_SYMBOL_GPL(ping_proc_unregister);
 
 static int __net_init ping_v4_proc_init_net(struct net *net)
 {
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index a6462d6..62ac5f2 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -78,29 +78,6 @@ int dummy_ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
 	return 0;
 }
 
-int __init pingv6_init(void)
-{
-	pingv6_ops.ipv6_recv_error = ipv6_recv_error;
-	pingv6_ops.ip6_datagram_recv_ctl = ip6_datagram_recv_ctl;
-	pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
-	pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
-	pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
-	return inet6_register_protosw(&pingv6_protosw);
-}
-
-/* This never gets called because it's not possible to unload the ipv6 module,
- * but just in case.
- */
-void pingv6_exit(void)
-{
-	pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
-	pingv6_ops.ip6_datagram_recv_ctl = dummy_ip6_datagram_recv_ctl;
-	pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
-	pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
-	pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
-	inet6_unregister_protosw(&pingv6_protosw);
-}
-
 int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		    size_t len)
 {
@@ -214,3 +191,82 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	return err;
 }
+
+#ifdef CONFIG_PROC_FS
+static void *ping_v6_seq_start(struct seq_file *seq, loff_t *pos)
+{
+	return ping_seq_start(seq, pos, AF_INET6);
+}
+
+int ping_v6_seq_show(struct seq_file *seq, void *v)
+{
+	if (v == SEQ_START_TOKEN) {
+		seq_puts(seq, IPV6_SEQ_DGRAM_HEADER);
+	} else {
+		int bucket = ((struct ping_iter_state *) seq->private)->bucket;
+		struct inet_sock *inet = inet_sk(v);
+		__u16 srcp = ntohs(inet->inet_sport);
+		__u16 destp = ntohs(inet->inet_dport);
+		ip6_dgram_sock_seq_show(seq, v, srcp, destp, bucket);
+	}
+	return 0;
+}
+
+static struct ping_seq_afinfo ping_v6_seq_afinfo = {
+	.name		= "icmp6",
+	.family		= AF_INET6,
+	.seq_fops       = &ping_seq_fops,
+	.seq_ops	= {
+		.start		= ping_v6_seq_start,
+		.show		= ping_v6_seq_show,
+		.next		= ping_seq_next,
+		.stop		= ping_seq_stop,
+	},
+};
+
+static int __net_init ping_v6_proc_init_net(struct net *net)
+{
+	return ping_proc_register(net, &ping_v6_seq_afinfo);
+}
+
+static void __net_init ping_v6_proc_exit_net(struct net *net)
+{
+	return ping_proc_unregister(net, &ping_v6_seq_afinfo);
+}
+
+static struct pernet_operations ping_v6_net_ops = {
+	.init = ping_v6_proc_init_net,
+	.exit = ping_v6_proc_exit_net,
+};
+#endif
+
+int __init pingv6_init(void)
+{
+#ifdef CONFIG_PROC_FS
+	int ret = register_pernet_subsys(&ping_v6_net_ops);
+	if (ret)
+		return ret;
+#endif
+	pingv6_ops.ipv6_recv_error = ipv6_recv_error;
+	pingv6_ops.ip6_datagram_recv_ctl = ip6_datagram_recv_ctl;
+	pingv6_ops.icmpv6_err_convert = icmpv6_err_convert;
+	pingv6_ops.ipv6_icmp_error = ipv6_icmp_error;
+	pingv6_ops.ipv6_chk_addr = ipv6_chk_addr;
+	return inet6_register_protosw(&pingv6_protosw);
+}
+
+/* This never gets called because it's not possible to unload the ipv6 module,
+ * but just in case.
+ */
+void pingv6_exit(void)
+{
+	pingv6_ops.ipv6_recv_error = dummy_ipv6_recv_error;
+	pingv6_ops.ip6_datagram_recv_ctl = dummy_ip6_datagram_recv_ctl;
+	pingv6_ops.icmpv6_err_convert = dummy_icmpv6_err_convert;
+	pingv6_ops.ipv6_icmp_error = dummy_ipv6_icmp_error;
+	pingv6_ops.ipv6_chk_addr = dummy_ipv6_chk_addr;
+#ifdef CONFIG_PROC_FS
+	unregister_pernet_subsys(&ping_v6_net_ops);
+#endif
+	inet6_unregister_protosw(&pingv6_protosw);
+}
-- 
cgit v0.10.2


From 256c90dedf538c59c70e65ba1a1340ce793c5b37 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 4 Jun 2013 19:21:08 +0200
Subject: cfg80211: fix potential deadlock regression

My big locking cleanups caused a problem by registering the
rfkill instance with the RTNL held, while the callback also
acquires the RTNL. This potentially causes a deadlock since
the two locks used (rfkill mutex and RTNL) can be acquired
in two different orders. Fix this by (un)registering rfkill
without holding the RTNL. This needs to be done after the
device struct is registered, but that can also be done w/o
holding the RTNL.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 221e76b..99d86dd 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -555,14 +555,18 @@ int wiphy_register(struct wiphy *wiphy)
 	/* check and set up bitrates */
 	ieee80211_set_bitrate_flags(wiphy);
 
-	rtnl_lock();
 
 	res = device_add(&rdev->wiphy.dev);
+	if (res)
+		return res;
+
+	res = rfkill_register(rdev->rfkill);
 	if (res) {
-		rtnl_unlock();
+		device_del(&rdev->wiphy.dev);
 		return res;
 	}
 
+	rtnl_lock();
 	/* set up regulatory info */
 	wiphy_regulatory_register(wiphy);
 
@@ -589,17 +593,6 @@ int wiphy_register(struct wiphy *wiphy)
 
 	cfg80211_debugfs_rdev_add(rdev);
 
-	res = rfkill_register(rdev->rfkill);
-	if (res) {
-		device_del(&rdev->wiphy.dev);
-
-		debugfs_remove_recursive(rdev->wiphy.debugfsdir);
-		list_del_rcu(&rdev->list);
-		wiphy_regulatory_deregister(wiphy);
-		rtnl_unlock();
-		return res;
-	}
-
 	rdev->wiphy.registered = true;
 	rtnl_unlock();
 	return 0;
@@ -636,11 +629,11 @@ void wiphy_unregister(struct wiphy *wiphy)
 		rtnl_unlock();
 		__count == 0; }));
 
+	rfkill_unregister(rdev->rfkill);
+
 	rtnl_lock();
 	rdev->wiphy.registered = false;
 
-	rfkill_unregister(rdev->rfkill);
-
 	BUG_ON(!list_empty(&rdev->wdev_list));
 
 	/*
-- 
cgit v0.10.2


From 9b881963c1c81f965f89a3e89b1aa5557f67ee30 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 4 Jun 2013 22:23:36 +0200
Subject: cfg80211: make wiphy index start at 0 again

The change to use atomic_inc_return() for assigning the wiphy
index made the first wiphy index 1 instead of 0. This is fine,
but we all habitually type "phy0" when we're testing, so make
it go back to 0 instead of 1 by subtracting 1 from the index.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 99d86dd..4224e75 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -301,6 +301,9 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
 		return NULL;
 	}
 
+	/* atomic_inc_return makes it start at 1, make it start at 0 */
+	rdev->wiphy_idx--;
+
 	/* give it a proper name */
 	dev_set_name(&rdev->wiphy.dev, PHY_NAME "%d", rdev->wiphy_idx);
 
-- 
cgit v0.10.2


From 317420ab2370d7999ec6c324bc30b34dc57fe9d8 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 3 Jun 2013 20:10:04 +0000
Subject: drivers: net: phy: at803x code cleanup on register and unregister
 driver

Make use of phy_drivers_register/phy_drivers_unregister to register/unregister
multiple phy drivers in a single module.

Cc: Matus Ujhelyi <ujhelyi.m@gmail.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 45cbc10..a1063e1 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -108,8 +108,9 @@ static int at803x_config_init(struct phy_device *phydev)
 	return 0;
 }
 
-/* ATHEROS 8035 */
-static struct phy_driver at8035_driver = {
+static struct phy_driver at803x_driver[] = {
+{
+	/* ATHEROS 8035 */
 	.phy_id		= 0x004dd072,
 	.name		= "Atheros 8035 ethernet",
 	.phy_id_mask	= 0xffffffef,
@@ -121,10 +122,8 @@ static struct phy_driver at8035_driver = {
 	.driver		= {
 		.owner = THIS_MODULE,
 	},
-};
-
-/* ATHEROS 8030 */
-static struct phy_driver at8030_driver = {
+}, {
+	/* ATHEROS 8030 */
 	.phy_id		= 0x004dd076,
 	.name		= "Atheros 8030 ethernet",
 	.phy_id_mask	= 0xffffffef,
@@ -136,32 +135,18 @@ static struct phy_driver at8030_driver = {
 	.driver		= {
 		.owner = THIS_MODULE,
 	},
-};
+} };
 
 static int __init atheros_init(void)
 {
-	int ret;
-
-	ret = phy_driver_register(&at8035_driver);
-	if (ret)
-		goto err1;
-
-	ret = phy_driver_register(&at8030_driver);
-	if (ret)
-		goto err2;
-
-	return 0;
-
-err2:
-	phy_driver_unregister(&at8035_driver);
-err1:
-	return ret;
+	return phy_drivers_register(at803x_driver,
+				    ARRAY_SIZE(at803x_driver));
 }
 
 static void __exit atheros_exit(void)
 {
-	phy_driver_unregister(&at8035_driver);
-	phy_driver_unregister(&at8030_driver);
+	return phy_drivers_unregister(at803x_driver,
+				      ARRAY_SIZE(at803x_driver));
 }
 
 module_init(atheros_init);
-- 
cgit v0.10.2


From ea13c9ee855cc60973458d1adeee9b35f0466a29 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 3 Jun 2013 20:10:05 +0000
Subject: drivers: net: phy: at803x: seperate wol specific code to wol standard
 apis

WOL is initilized in phy config_init, but there are standard apis
(set_wol/get_wol) for WOL in phy frame work. So this patch moves
WOL specific code from config_init to wol standard apis.

Cc: Matus Ujhelyi <ujhelyi.m@gmail.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index a1063e1..63444b7 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -32,10 +32,13 @@ MODULE_DESCRIPTION("Atheros 803x PHY driver");
 MODULE_AUTHOR("Matus Ujhelyi");
 MODULE_LICENSE("GPL");
 
-static void at803x_set_wol_mac_addr(struct phy_device *phydev)
+static int at803x_set_wol(struct phy_device *phydev,
+			  struct ethtool_wolinfo *wol)
 {
 	struct net_device *ndev = phydev->attached_dev;
 	const u8 *mac;
+	int ret;
+	u32 value;
 	unsigned int i, offsets[] = {
 		AT803X_LOC_MAC_ADDR_32_47_OFFSET,
 		AT803X_LOC_MAC_ADDR_16_31_OFFSET,
@@ -43,30 +46,60 @@ static void at803x_set_wol_mac_addr(struct phy_device *phydev)
 	};
 
 	if (!ndev)
-		return;
+		return -ENODEV;
 
-	mac = (const u8 *) ndev->dev_addr;
+	if (wol->wolopts & WAKE_MAGIC) {
+		mac = (const u8 *) ndev->dev_addr;
 
-	if (!is_valid_ether_addr(mac))
-		return;
+		if (!is_valid_ether_addr(mac))
+			return -EFAULT;
 
-	for (i = 0; i < 3; i++) {
-		phy_write(phydev, AT803X_MMD_ACCESS_CONTROL,
+		for (i = 0; i < 3; i++) {
+			phy_write(phydev, AT803X_MMD_ACCESS_CONTROL,
 				  AT803X_DEVICE_ADDR);
-		phy_write(phydev, AT803X_MMD_ACCESS_CONTROL_DATA,
+			phy_write(phydev, AT803X_MMD_ACCESS_CONTROL_DATA,
 				  offsets[i]);
-		phy_write(phydev, AT803X_MMD_ACCESS_CONTROL,
+			phy_write(phydev, AT803X_MMD_ACCESS_CONTROL,
 				  AT803X_FUNC_DATA);
-		phy_write(phydev, AT803X_MMD_ACCESS_CONTROL_DATA,
+			phy_write(phydev, AT803X_MMD_ACCESS_CONTROL_DATA,
 				  mac[(i * 2) + 1] | (mac[(i * 2)] << 8));
+		}
+
+		value = phy_read(phydev, AT803X_INTR_ENABLE);
+		value |= AT803X_WOL_ENABLE;
+		ret = phy_write(phydev, AT803X_INTR_ENABLE, value);
+		if (ret)
+			return ret;
+		value = phy_read(phydev, AT803X_INTR_STATUS);
+	} else {
+		value = phy_read(phydev, AT803X_INTR_ENABLE);
+		value &= (~AT803X_WOL_ENABLE);
+		ret = phy_write(phydev, AT803X_INTR_ENABLE, value);
+		if (ret)
+			return ret;
+		value = phy_read(phydev, AT803X_INTR_STATUS);
 	}
+
+	return ret;
+}
+
+static void at803x_get_wol(struct phy_device *phydev,
+			   struct ethtool_wolinfo *wol)
+{
+	u32 value;
+
+	wol->supported = WAKE_MAGIC;
+	wol->wolopts = 0;
+
+	value = phy_read(phydev, AT803X_INTR_ENABLE);
+	if (value & AT803X_WOL_ENABLE)
+		wol->wolopts |= WAKE_MAGIC;
 }
 
 static int at803x_config_init(struct phy_device *phydev)
 {
 	int val;
 	u32 features;
-	int status;
 
 	features = SUPPORTED_TP | SUPPORTED_MII | SUPPORTED_AUI |
 		   SUPPORTED_FIBRE | SUPPORTED_BNC;
@@ -100,11 +133,6 @@ static int at803x_config_init(struct phy_device *phydev)
 	phydev->supported = features;
 	phydev->advertising = features;
 
-	/* enable WOL */
-	at803x_set_wol_mac_addr(phydev);
-	status = phy_write(phydev, AT803X_INTR_ENABLE, AT803X_WOL_ENABLE);
-	status = phy_read(phydev, AT803X_INTR_STATUS);
-
 	return 0;
 }
 
@@ -115,6 +143,8 @@ static struct phy_driver at803x_driver[] = {
 	.name		= "Atheros 8035 ethernet",
 	.phy_id_mask	= 0xffffffef,
 	.config_init	= at803x_config_init,
+	.set_wol	= at803x_set_wol,
+	.get_wol	= at803x_get_wol,
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
 	.config_aneg	= &genphy_config_aneg,
@@ -128,6 +158,8 @@ static struct phy_driver at803x_driver[] = {
 	.name		= "Atheros 8030 ethernet",
 	.phy_id_mask	= 0xffffffef,
 	.config_init	= at803x_config_init,
+	.set_wol	= at803x_set_wol,
+	.get_wol	= at803x_get_wol,
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
 	.config_aneg	= &genphy_config_aneg,
-- 
cgit v0.10.2


From 1ca6d1b1aef4628ff0fe458135ddb008d134ad8f Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 3 Jun 2013 20:10:06 +0000
Subject: drivers: net: phy: at803x: add interface mode support

This patch adds support for RGMII TX delay configuration on Atheros 803X,
this can be enabled in debug registers. With this patch,
PHY_INTERFACE_MODE_RGMII_TXID modes are now supported.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 63444b7..dda07ed 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -27,6 +27,10 @@
 #define AT803X_MMD_ACCESS_CONTROL		0x0D
 #define AT803X_MMD_ACCESS_CONTROL_DATA		0x0E
 #define AT803X_FUNC_DATA			0x4003
+#define AT803X_DEBUG_ADDR			0x1D
+#define AT803X_DEBUG_DATA			0x1E
+#define AT803X_DEBUG_SYSTEM_MODE_CTRL		0x05
+#define AT803X_DEBUG_RGMII_TX_CLK_DLY		BIT(8)
 
 MODULE_DESCRIPTION("Atheros 803x PHY driver");
 MODULE_AUTHOR("Matus Ujhelyi");
@@ -99,6 +103,7 @@ static void at803x_get_wol(struct phy_device *phydev,
 static int at803x_config_init(struct phy_device *phydev)
 {
 	int val;
+	int ret;
 	u32 features;
 
 	features = SUPPORTED_TP | SUPPORTED_MII | SUPPORTED_AUI |
@@ -133,6 +138,17 @@ static int at803x_config_init(struct phy_device *phydev)
 	phydev->supported = features;
 	phydev->advertising = features;
 
+	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
+		ret = phy_write(phydev, AT803X_DEBUG_ADDR,
+				AT803X_DEBUG_SYSTEM_MODE_CTRL);
+		if (ret)
+			return ret;
+		ret = phy_write(phydev, AT803X_DEBUG_DATA,
+				AT803X_DEBUG_RGMII_TX_CLK_DLY);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }
 
-- 
cgit v0.10.2


From 05d7cce8fe11758868f60fc03a83b638700901d8 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 3 Jun 2013 20:10:07 +0000
Subject: drivers: net: phy: at803x: add support for AT8031

This patch adds support for Atheros 8031 phy driver.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index dda07ed..1f7091b 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -183,6 +183,21 @@ static struct phy_driver at803x_driver[] = {
 	.driver		= {
 		.owner = THIS_MODULE,
 	},
+}, {
+	/* ATHEROS 8031 */
+	.phy_id		= 0x004dd074,
+	.name		= "Atheros 8031 ethernet",
+	.phy_id_mask	= 0xffffffef,
+	.config_init	= at803x_config_init,
+	.set_wol	= at803x_set_wol,
+	.get_wol	= at803x_get_wol,
+	.features	= PHY_GBIT_FEATURES,
+	.flags		= PHY_HAS_INTERRUPT,
+	.config_aneg	= &genphy_config_aneg,
+	.read_status	= &genphy_read_status,
+	.driver		= {
+		.owner = THIS_MODULE,
+	},
 } };
 
 static int __init atheros_init(void)
-- 
cgit v0.10.2


From b40fbbfc05a5a63e8d4fbc8fdb5f0e78e8627ae4 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 3 Jun 2013 20:10:08 +0000
Subject: ARM: OMAP2+: omap2plus_defconfig: Enable Atheros support

Enable Atheros 803X phy driver support in defconfig which is present in
AM335x EVM and EVM Starter Kit.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 435d69b..aa21009 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -283,3 +283,4 @@ CONFIG_SOC_OMAP5=y
 CONFIG_TI_DAVINCI_MDIO=y
 CONFIG_TI_DAVINCI_CPDMA=y
 CONFIG_TI_CPSW=y
+CONFIG_AT803X_PHY=y
-- 
cgit v0.10.2


From f6655d697b85f75d2a1f4f6a03dd2d4c3549e321 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 3 Jun 2013 20:10:09 +0000
Subject: ARM: dts: AM33XX: Add CPSW phy_id device tree data to am335x-evmsk

Add phy_id device tree data to am335x-evmsk device to bring up CPSW
ethernet present on am335x starter kit.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index f67c360..acbcac3 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -248,3 +248,11 @@
 		};
 	};
 };
+
+&cpsw_emac0 {
+	phy_id = <&davinci_mdio>, <0>;
+};
+
+&cpsw_emac1 {
+	phy_id = <&davinci_mdio>, <1>;
+};
-- 
cgit v0.10.2


From c5ceea7a2813fecded01567383cca4d6855164ab Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 3 Jun 2013 20:10:10 +0000
Subject: drivers: net: ethernet: cpsw: add phy-mode support to cpsw driver

Adding phy-mode support to cpsw driver and updating the cpsw binding
documentation.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt
index 4f2ca6b..05d660e 100644
--- a/Documentation/devicetree/bindings/net/cpsw.txt
+++ b/Documentation/devicetree/bindings/net/cpsw.txt
@@ -28,6 +28,8 @@ Optional properties:
 Slave Properties:
 Required properties:
 - phy_id		: Specifies slave phy id
+- phy-mode		: The interface between the SoC and the PHY (a string
+			  that of_get_phy_mode() can understand)
 - mac-address		: Specifies slave MAC address
 
 Optional properties:
@@ -58,11 +60,13 @@ Examples:
 		cpts_clock_shift = <29>;
 		cpsw_emac0: slave@0 {
 			phy_id = <&davinci_mdio>, <0>;
+			phy-mode = "rgmii-txid";
 			/* Filled in by U-Boot */
 			mac-address = [ 00 00 00 00 00 00 ];
 		};
 		cpsw_emac1: slave@1 {
 			phy_id = <&davinci_mdio>, <1>;
+			phy-mode = "rgmii-txid";
 			/* Filled in by U-Boot */
 			mac-address = [ 00 00 00 00 00 00 ];
 		};
@@ -84,11 +88,13 @@ Examples:
 		cpts_clock_shift = <29>;
 		cpsw_emac0: slave@0 {
 			phy_id = <&davinci_mdio>, <0>;
+			phy-mode = "rgmii-txid";
 			/* Filled in by U-Boot */
 			mac-address = [ 00 00 00 00 00 00 ];
 		};
 		cpsw_emac1: slave@1 {
 			phy_id = <&davinci_mdio>, <1>;
+			phy-mode = "rgmii-txid";
 			/* Filled in by U-Boot */
 			mac-address = [ 00 00 00 00 00 00 ];
 		};
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 89a4c40..a45f64e 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1554,6 +1554,8 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 		if (mac_addr)
 			memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN);
 
+		slave_data->phy_if = of_get_phy_mode(slave_node);
+
 		if (data->dual_emac) {
 			if (of_property_read_u32(slave_node, "dual_emac_res_vlan",
 						 &prop)) {
-- 
cgit v0.10.2


From 6d75afe2916adf9e9de6862275cdf89b9b7e4d0e Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Mon, 3 Jun 2013 20:10:11 +0000
Subject: ARM: dts: AM33XX: Add phy-mode to CPSW node

Adding phy-mode to CPSW node for beaglebone, EVM and EVMsk.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 5302f79..4b5a8e0 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -131,8 +131,10 @@
 
 &cpsw_emac0 {
 	phy_id = <&davinci_mdio>, <0>;
+	phy-mode = "mii";
 };
 
 &cpsw_emac1 {
 	phy_id = <&davinci_mdio>, <1>;
+	phy-mode = "mii";
 };
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 0423298..814ee03 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -239,8 +239,10 @@
 
 &cpsw_emac0 {
 	phy_id = <&davinci_mdio>, <0>;
+	phy-mode = "rgmii-txid";
 };
 
 &cpsw_emac1 {
 	phy_id = <&davinci_mdio>, <1>;
+	phy-mode = "rgmii-txid";
 };
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index acbcac3..4297899 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -251,8 +251,10 @@
 
 &cpsw_emac0 {
 	phy_id = <&davinci_mdio>, <0>;
+	phy-mode = "rgmii-txid";
 };
 
 &cpsw_emac1 {
 	phy_id = <&davinci_mdio>, <1>;
+	phy-mode = "rgmii-txid";
 };
-- 
cgit v0.10.2


From ebd4687af732a903f6822bb129d2f3a7d830e798 Mon Sep 17 00:00:00 2001
From: Jean Sacren <sakiwit@gmail.com>
Date: Sat, 1 Jun 2013 16:23:15 +0000
Subject: xfrm: simplify the exit path of xfrm_output_one()

Clean up unnecessary assignment and jump. While there, fix up the label
name.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 0cf003d..eb4a842 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -89,7 +89,7 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
 
 		err = x->type->output(x, skb);
 		if (err == -EINPROGRESS)
-			goto out_exit;
+			goto out;
 
 resume:
 		if (err) {
@@ -107,15 +107,14 @@ resume:
 		x = dst->xfrm;
 	} while (x && !(x->outer_mode->flags & XFRM_MODE_FLAG_TUNNEL));
 
-	err = 0;
+	return 0;
 
-out_exit:
-	return err;
 error:
 	spin_unlock_bh(&x->lock);
 error_nolock:
 	kfree_skb(skb);
-	goto out_exit;
+out:
+	return err;
 }
 
 int xfrm_output_resume(struct sk_buff *skb, int err)
-- 
cgit v0.10.2


From 0e9649c143eb9d7ecaaef221fd411e5c747f97ce Mon Sep 17 00:00:00 2001
From: Jean Sacren <sakiwit@gmail.com>
Date: Sat, 1 Jun 2013 16:23:16 +0000
Subject: net: do not manually initialize enumerators

Clean up unnecessary initialization of enumerators as the compiler takes
care of that.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/net.h b/include/linux/net.h
index 99c9f0c..4f27575 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -79,9 +79,9 @@ enum sock_type {
 #endif /* ARCH_HAS_SOCKET_TYPES */
 
 enum sock_shutdown_cmd {
-	SHUT_RD		= 0,
-	SHUT_WR		= 1,
-	SHUT_RDWR	= 2,
+	SHUT_RD,
+	SHUT_WR,
+	SHUT_RDWR,
 };
 
 struct socket_wq {
-- 
cgit v0.10.2


From 4960c2c6fa252d2e90796074427db3f2297b523b Mon Sep 17 00:00:00 2001
From: Jean Sacren <sakiwit@gmail.com>
Date: Sat, 1 Jun 2013 16:23:17 +0000
Subject: Kconfig: remove dangling references to the deleted file

Commit 202dc3fc599c1dded235d3b448d9ca924252e354 (Documentation: remove
obsolete networking/multicast.txt file) deleted the obsolete file. After
the file has been removed, clean up a couple of places where references
to the deleted file were made so that users wouldn't be confused when
they consult the Help menu.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 8603ca8..37cf1a6 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -9,10 +9,7 @@ config IP_MULTICAST
 	  intend to participate in the MBONE, a high bandwidth network on top
 	  of the Internet which carries audio and video broadcasts. More
 	  information about the MBONE is on the WWW at
-	  <http://www.savetz.com/mbone/>. Information about the multicast
-	  capabilities of the various network cards is contained in
-	  <file:Documentation/networking/multicast.txt>. For most people, it's
-	  safe to say N.
+	  <http://www.savetz.com/mbone/>. For most people, it's safe to say N.
 
 config IP_ADVANCED_ROUTER
 	bool "IP: advanced router"
@@ -223,10 +220,8 @@ config IP_MROUTE
 	  packets that have several destination addresses. It is needed on the
 	  MBONE, a high bandwidth network on top of the Internet which carries
 	  audio and video broadcasts. In order to do that, you would most
-	  likely run the program mrouted. Information about the multicast
-	  capabilities of the various network cards is contained in
-	  <file:Documentation/networking/multicast.txt>. If you haven't heard
-	  about it, you don't need it.
+	  likely run the program mrouted. If you haven't heard about it, you
+	  don't need it.
 
 config IP_MROUTE_MULTIPLE_TABLES
 	bool "IP: multicast policy routing"
-- 
cgit v0.10.2


From f145b67f24e6855a026fbe9c9f1df97412044d1d Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 2 Jun 2013 07:04:26 +0000
Subject: transp_v6.h: style neatening

Use a more current code style.

Remove extern from function prototypes.
Align function arguments and reflow to 80 cols.
Use network comment styles.

Signed-off-by: Joe Perches <joe@perches.com>
cc: Lorenzo Colitti <lorenzo@google.com>,
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index 6dddc08..48660e5 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -3,72 +3,57 @@
 
 #include <net/checksum.h>
 
-/*
- *	IPv6 transport protocols
- */
-
-extern struct proto     rawv6_prot;
-extern struct proto     udpv6_prot;
-extern struct proto     udplitev6_prot;
-extern struct proto     tcpv6_prot;
-extern struct proto     pingv6_prot;
+/* IPv6 transport protocols */
+extern struct proto rawv6_prot;
+extern struct proto udpv6_prot;
+extern struct proto udplitev6_prot;
+extern struct proto tcpv6_prot;
+extern struct proto pingv6_prot;
 
 struct flowi6;
 
 /* extension headers */
-extern int		ipv6_exthdrs_init(void);
-extern void		ipv6_exthdrs_exit(void);
-extern int		ipv6_frag_init(void);
-extern void		ipv6_frag_exit(void);
+int ipv6_exthdrs_init(void);
+void ipv6_exthdrs_exit(void);
+int ipv6_frag_init(void);
+void ipv6_frag_exit(void);
 
 /* transport protocols */
-extern int		pingv6_init(void);
-extern void		pingv6_exit(void);
-extern int		rawv6_init(void);
-extern void		rawv6_exit(void);
-extern int		udpv6_init(void);
-extern void		udpv6_exit(void);
-extern int		udplitev6_init(void);
-extern void		udplitev6_exit(void);
-extern int		tcpv6_init(void);
-extern void		tcpv6_exit(void);
+int pingv6_init(void);
+void pingv6_exit(void);
+int rawv6_init(void);
+void rawv6_exit(void);
+int udpv6_init(void);
+void udpv6_exit(void);
+int udplitev6_init(void);
+void udplitev6_exit(void);
+int tcpv6_init(void);
+void tcpv6_exit(void);
 
-extern int		udpv6_connect(struct sock *sk,
-				      struct sockaddr *uaddr,
-				      int addr_len);
+int udpv6_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
 
-extern int		ip6_datagram_recv_ctl(struct sock *sk,
-					      struct msghdr *msg,
-					      struct sk_buff *skb);
+int ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg,
+			  struct sk_buff *skb);
 
-extern int		ip6_datagram_send_ctl(struct net *net,
-					      struct sock *sk,
-					      struct msghdr *msg,
-					      struct flowi6 *fl6,
-					      struct ipv6_txoptions *opt,
-					      int *hlimit, int *tclass,
-					      int *dontfrag);
+int ip6_datagram_send_ctl(struct net *net, struct sock *sk, struct msghdr *msg,
+			  struct flowi6 *fl6, struct ipv6_txoptions *opt,
+			  int *hlimit, int *tclass, int *dontfrag);
 
-extern void		ip6_dgram_sock_seq_show(struct seq_file *seq,
-						struct sock *sp,
-						__u16 srcp,
-						__u16 destp,
-						int bucket);
+void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
+			     __u16 srcp, __u16 destp, int bucket);
 
-#define		LOOPBACK4_IPV6		cpu_to_be32(0x7f000006)
+#define LOOPBACK4_IPV6 cpu_to_be32(0x7f000006)
 
-/*
- *	address family specific functions
- */
+/* address family specific functions */
 extern const struct inet_connection_sock_af_ops ipv4_specific;
 
-extern void inet6_destroy_sock(struct sock *sk);
+void inet6_destroy_sock(struct sock *sk);
 
-#define IPV6_SEQ_DGRAM_HEADER \
-			   "  sl  "					\
-			   "local_address                         "	\
-			   "remote_address                        "	\
-			   "st tx_queue rx_queue tr tm->when retrnsmt"	\
-			   "   uid  timeout inode ref pointer drops\n"
+#define IPV6_SEQ_DGRAM_HEADER					       \
+	"  sl  "						       \
+	"local_address                         "		       \
+	"remote_address                        "		       \
+	"st tx_queue rx_queue tr tm->when retrnsmt"		       \
+	"   uid  timeout inode ref pointer drops\n"
 
 #endif
-- 
cgit v0.10.2


From f1362e378ab27844f968f1f390e33b6c77861ec0 Mon Sep 17 00:00:00 2001
From: "Jens Renner \\(EFE\\)" <renner@efe-gmbh.de>
Date: Sun, 2 Jun 2013 05:19:06 +0000
Subject: net: emaclite: Fix typo in error message

s/allocal/allocate/

Signed-off-by: Jens Renner <renner@efe-gmbh.de>
Acked-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index aa14d8a..aaadf7e 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -877,7 +877,7 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 
 	bus = mdiobus_alloc();
 	if (!bus) {
-		dev_err(dev, "Failed to allocal mdiobus\n");
+		dev_err(dev, "Failed to allocate mdiobus\n");
 		return -ENOMEM;
 	}
 
-- 
cgit v0.10.2


From 430f03cde2fb9596d8b562824471e298a8080df9 Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Sun, 2 Jun 2013 20:43:55 +0000
Subject: net: mark netdev_create_hash __net_init

netdev_create_hash() is only called from netdev_init() which is marked
__net_init.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/dev.c b/net/core/dev.c
index d4d874a..9c18557 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6088,7 +6088,7 @@ netdev_features_t netdev_increment_features(netdev_features_t all,
 }
 EXPORT_SYMBOL(netdev_increment_features);
 
-static struct hlist_head *netdev_create_hash(void)
+static struct hlist_head * __net_init netdev_create_hash(void)
 {
 	int i;
 	struct hlist_head *hash;
-- 
cgit v0.10.2


From c26d6b46da3ee86fa8a864347331e5513ca84c2b Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Sun, 2 Jun 2013 22:43:52 +0000
Subject: ping: always initialize ->sin6_scope_id and ->sin6_flowinfo

If we don't need scope id, we should initialize it to zero.
Same for ->sin6_flowinfo.

Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 3552a45..1f1b2dd 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -892,12 +892,12 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		sin6->sin6_port = 0;
 		sin6->sin6_addr = ip6->saddr;
 
+		sin6->sin6_flowinfo = 0;
 		if (np->sndflow)
 			sin6->sin6_flowinfo = ip6_flowinfo(ip6);
 
-		if (__ipv6_addr_needs_scope_id(
-		    ipv6_addr_type(&sin6->sin6_addr)))
-			sin6->sin6_scope_id = IP6CB(skb)->iif;
+		sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
+							  IP6CB(skb)->iif);
 
 		if (inet6_sk(sk)->rxopt.all)
 			pingv6_ops.ip6_datagram_recv_ctl(sk, msg, skb);
-- 
cgit v0.10.2


From 600fed5e97afca10356952e334f362e82fc71466 Mon Sep 17 00:00:00 2001
From: Yan Burman <yanb@mellanox.com>
Date: Mon, 3 Jun 2013 02:03:34 +0000
Subject: net/ethtool: Fix comment regarding location of dev_ethtool() call

Signed-off-by: Yan Burman <yanb@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 4e6f63a..cd23d31 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1414,7 +1414,7 @@ static int ethtool_get_module_eeprom(struct net_device *dev,
 				      modinfo.eeprom_len);
 }
 
-/* The main entry point in this file.  Called from net/core/dev.c */
+/* The main entry point in this file.  Called from net/core/dev_ioctl.c */
 
 int dev_ethtool(struct net *net, struct ifreq *ifr)
 {
-- 
cgit v0.10.2


From ff20877ab3be42cf9c21a9b0173db690aa3165b0 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 3 Jun 2013 03:11:24 +0000
Subject: net: mv643xx_eth: add missing semicolon

76723bca28 "net: mv643xx_eth: add DT parsing support" added a
dummy mv643xx_eth_shared_of_probe() fallback function with a
typo.

This adds the missing semicolon so we can build without CONFIG_OF
again, and changes both dummy functions to the more conventional
"static inline" syntax, which can avoid potential problems with
the empty macro.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 23ea7b6..c7f9fb3 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2582,12 +2582,14 @@ static void mv643xx_eth_shared_of_remove(void)
 	}
 }
 #else
-static int mv643xx_eth_shared_of_probe(struct platform_device *pdev)
+static inline int mv643xx_eth_shared_of_probe(struct platform_device *pdev)
 {
-	return 0
+	return 0;
 }
 
-#define mv643xx_eth_shared_of_remove()
+static inline void mv643xx_eth_shared_of_remove(void)
+{
+}
 #endif
 
 static int mv643xx_eth_shared_probe(struct platform_device *pdev)
-- 
cgit v0.10.2


From 93baf4c615584fa02c21aa78f305428fc7060656 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 3 Jun 2013 03:36:52 +0000
Subject: net: sun4i-emac: fix a typo in emac_probe()

Just fixed a typo in emac_probe().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index b411344..26083cd 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -821,7 +821,7 @@ static int emac_probe(struct platform_device *pdev)
 	db->membase = of_iomap(np, 0);
 	if (!db->membase) {
 		dev_err(&pdev->dev, "failed to remap registers\n");
-		return -ENOMEM;
+		ret = -ENOMEM;
 		goto out;
 	}
 
-- 
cgit v0.10.2


From 8cc3e439ab920703264a62e1b19559b39e20d77e Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue, 4 Jun 2013 04:52:23 +0000
Subject: net: mvneta: read MAC address from hardware when available

This patch improves the logic used by the mvneta driver to find a MAC
address for a particular interface. Until now, it was only looking at
the Device Tree, and if no address was found, was falling back to
generating a random MAC address.

This patch adds the intermediate solution of reading the MAC address
from the hardware registers, in case it has been set by the
bootloader. So the order is now:

 1) MAC address from the Device Tree
 2) MAC address from the hardware registers
 3) Random MAC address

This requires moving the MAC address initialization a little bit later
in the ->probe() code, because it now requires the hardware registers
to be remapped.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index cd0ea20..712779f 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2251,6 +2251,21 @@ static int mvneta_change_mtu(struct net_device *dev, int mtu)
 	return 0;
 }
 
+/* Get mac address */
+static void mvneta_get_mac_addr(struct mvneta_port *pp, unsigned char *addr)
+{
+	u32 mac_addr_l, mac_addr_h;
+
+	mac_addr_l = mvreg_read(pp, MVNETA_MAC_ADDR_LOW);
+	mac_addr_h = mvreg_read(pp, MVNETA_MAC_ADDR_HIGH);
+	addr[0] = (mac_addr_h >> 24) & 0xFF;
+	addr[1] = (mac_addr_h >> 16) & 0xFF;
+	addr[2] = (mac_addr_h >> 8) & 0xFF;
+	addr[3] = mac_addr_h & 0xFF;
+	addr[4] = (mac_addr_l >> 8) & 0xFF;
+	addr[5] = mac_addr_l & 0xFF;
+}
+
 /* Handle setting mac address */
 static int mvneta_set_mac_addr(struct net_device *dev, void *addr)
 {
@@ -2667,7 +2682,9 @@ static int mvneta_probe(struct platform_device *pdev)
 	u32 phy_addr;
 	struct mvneta_port *pp;
 	struct net_device *dev;
-	const char *mac_addr;
+	const char *dt_mac_addr;
+	char hw_mac_addr[ETH_ALEN];
+	const char *mac_from;
 	int phy_mode;
 	int err;
 
@@ -2703,13 +2720,6 @@ static int mvneta_probe(struct platform_device *pdev)
 		goto err_free_irq;
 	}
 
-	mac_addr = of_get_mac_address(dn);
-
-	if (!mac_addr || !is_valid_ether_addr(mac_addr))
-		eth_hw_addr_random(dev);
-	else
-		memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
-
 	dev->tx_queue_len = MVNETA_MAX_TXD;
 	dev->watchdog_timeo = 5 * HZ;
 	dev->netdev_ops = &mvneta_netdev_ops;
@@ -2740,6 +2750,21 @@ static int mvneta_probe(struct platform_device *pdev)
 
 	clk_prepare_enable(pp->clk);
 
+	dt_mac_addr = of_get_mac_address(dn);
+	if (dt_mac_addr && is_valid_ether_addr(dt_mac_addr)) {
+		mac_from = "device tree";
+		memcpy(dev->dev_addr, dt_mac_addr, ETH_ALEN);
+	} else {
+		mvneta_get_mac_addr(pp, hw_mac_addr);
+		if (is_valid_ether_addr(hw_mac_addr)) {
+			mac_from = "hardware";
+			memcpy(dev->dev_addr, hw_mac_addr, ETH_ALEN);
+		} else {
+			mac_from = "random";
+			eth_hw_addr_random(dev);
+		}
+	}
+
 	pp->tx_done_timer.data = (unsigned long)dev;
 
 	pp->tx_ring_size = MVNETA_MAX_TXD;
@@ -2772,7 +2797,8 @@ static int mvneta_probe(struct platform_device *pdev)
 		goto err_deinit;
 	}
 
-	netdev_info(dev, "mac: %pM\n", dev->dev_addr);
+	netdev_info(dev, "Using %s mac address %pM\n", mac_from,
+		    dev->dev_addr);
 
 	platform_set_drvdata(pdev, pp->dev);
 
-- 
cgit v0.10.2


From e6309cff76a6adc0010609d45d34173e524a546d Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 3 Jun 2013 07:54:55 +0000
Subject: net/mlx4: use one page fragment per incoming frame

mlx4 driver has a suboptimal memory allocation strategy for regular
MTU=1500 frames, as it uses two page fragments :

One of 512 bytes and one of 1024 bytes.

This makes GRO less effective, as each GSO packet contains 8 MSS instead
of 16 MSS.

Performance of a single TCP flow gains 25 % increase with the following
patch.

Before patch :

A:~# netperf -H 192.168.0.2 -Cc
MIGRATED TCP STREAM TEST ...
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      13798.47   3.06     4.20     0.436   0.598

After patch :

A:~# netperf -H 192.68.0.2 -Cc
MIGRATED TCP STREAM TEST ...
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      17273.80   3.44     4.19     0.391   0.477

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Amir Vadai <amirv@mellanox.com>
Acked-By: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index b1d7657..b1f51c1 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -98,11 +98,11 @@
 #define MLX4_EN_ALLOC_SIZE	PAGE_ALIGN(16384)
 #define MLX4_EN_ALLOC_ORDER	get_order(MLX4_EN_ALLOC_SIZE)
 
-/* Receive fragment sizes; we use at most 4 fragments (for 9600 byte MTU
+/* Receive fragment sizes; we use at most 3 fragments (for 9600 byte MTU
  * and 4K allocations) */
 enum {
-	FRAG_SZ0 = 512 - NET_IP_ALIGN,
-	FRAG_SZ1 = 1024,
+	FRAG_SZ0 = 1536 - NET_IP_ALIGN,
+	FRAG_SZ1 = 4096,
 	FRAG_SZ2 = 4096,
 	FRAG_SZ3 = MLX4_EN_ALLOC_SIZE
 };
-- 
cgit v0.10.2


From c08355fb61fb064d141b8bd156145d326f33022f Mon Sep 17 00:00:00 2001
From: "govindarajulu.v" <govindarajulu90@gmail.com>
Date: Mon, 3 Jun 2013 08:07:42 +0000
Subject: mlx4: use __netdev_pick_tx instead of __skb_tx_hash in
 mlx4_en_select_queue

mlx4_en_select_queue() uses __skb_tx_hash to select the transmit queue.
XPS settings are ignored by this. Instead, we can use __netdev_pick_tx
to select the transmit queue.

Compile test only.

Signed-off-by: govindarajulu.v <govindarajulu90@gmail.com>
Acked-By: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 4e6877a..7c49238 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -544,7 +544,7 @@ u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb)
 	if (vlan_tx_tag_present(skb))
 		up = vlan_tx_tag_get(skb) >> VLAN_PRIO_SHIFT;
 
-	return __skb_tx_hash(dev, skb, rings_p_up) + up * rings_p_up;
+	return __netdev_pick_tx(dev, skb) % rings_p_up + up * rings_p_up;
 }
 
 static void mlx4_bf_copy(void __iomem *dst, unsigned long *src, unsigned bytecnt)
-- 
cgit v0.10.2


From 10e179e364beafc23d837e81cf98d99720f42551 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 3 Jun 2013 11:36:50 +0000
Subject: net: sun4i-emac: remove erroneous assignment

The newly added sun4i-emac driver causes a build error when
CONFIG_NET_POLL_CONTROLLER is set, because it attempts to
assign a pointer to netdev->poll_controller, which has
been replaced with ops->ndo_poll_controller in 2.6.31!

The correct assignment is present as well, so we just need
to remove the wrong one.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Maxime Ripard <maxime.ripard@anandra.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index 26083cd..0bb2f4a 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -869,10 +869,6 @@ static int emac_probe(struct platform_device *pdev)
 	ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
 	ndev->ethtool_ops = &emac_ethtool_ops;
 
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	ndev->poll_controller = &emac_poll_controller;
-#endif
-
 	platform_set_drvdata(pdev, ndev);
 
 	/* Carrier starts down, phylib will bring it up */
-- 
cgit v0.10.2


From 525cebedb32a87fa48584bc44e14170beb2c10d1 Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@suug.ch>
Date: Mon, 3 Jun 2013 11:49:23 +0000
Subject: pktgen: Fix position of ip and udp header

skb_set_network_header() expects an offset based on the data pointer
whereas skb_tail_offset() also includes the headroom. This resulted
in the ip header being written in a wrong location.

Use return values of skb_put() directly and rely on skb->len to
set mac, network, and transport header.

Cc: Simon Horman <horms@verge.net.au>
Cc: Daniel Borkmann <dborkmann@redhat.com>
Assisted-by: Daniel Borkmann <dborkmann@redhat.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Daniel Borkmann <dborkmann@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index d2ede89..303412d 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2642,7 +2642,6 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 	__be16 *svlan_tci = NULL;                /* Encapsulates priority and SVLAN ID */
 	__be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */
 	u16 queue_map;
-	unsigned long tail_offset;
 
 	if (pkt_dev->nr_labels)
 		protocol = htons(ETH_P_MPLS_UC);
@@ -2709,20 +2708,15 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 		*vlan_encapsulated_proto = htons(ETH_P_IP);
 	}
 
-	tail_offset = skb_tail_offset(skb);
-	if (tail_offset > 0xffff) {
-		kfree_skb(skb);
-		return NULL;
-	}
-	skb_set_network_header(skb, tail_offset);
-	skb->transport_header = skb->network_header + sizeof(struct iphdr);
-	skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr));
+	skb_set_mac_header(skb, 0);
+	skb_set_network_header(skb, skb->len);
+	iph = (struct iphdr *) skb_put(skb, sizeof(struct iphdr));
+
+	skb_set_transport_header(skb, skb->len);
+	udph = (struct udphdr *) skb_put(skb, sizeof(struct udphdr));
 	skb_set_queue_mapping(skb, queue_map);
 	skb->priority = pkt_dev->skb_priority;
 
-	iph = ip_hdr(skb);
-	udph = udp_hdr(skb);
-
 	memcpy(eth, pkt_dev->hh, 12);
 	*(__be16 *) & eth[12] = protocol;
 
@@ -2752,8 +2746,6 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 	iph->check = 0;
 	iph->check = ip_fast_csum((void *)iph, iph->ihl);
 	skb->protocol = protocol;
-	skb->mac_header = (skb->network_header - ETH_HLEN -
-			   pkt_dev->pkt_overhead);
 	skb->dev = odev;
 	skb->pkt_type = PACKET_HOST;
 	pktgen_finalize_skb(pkt_dev, skb, datalen);
@@ -2781,7 +2773,6 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 	__be16 *svlan_tci = NULL;                /* Encapsulates priority and SVLAN ID */
 	__be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */
 	u16 queue_map;
-	unsigned long tail_offset;
 
 	if (pkt_dev->nr_labels)
 		protocol = htons(ETH_P_MPLS_UC);
@@ -2829,18 +2820,14 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 		*vlan_encapsulated_proto = htons(ETH_P_IPV6);
 	}
 
-	tail_offset = skb_tail_offset(skb);
-	if (tail_offset > 0xffff) {
-		kfree_skb(skb);
-		return NULL;
-	}
-	skb_set_network_header(skb, tail_offset);
-	skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
-	skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr));
+	skb_set_mac_header(skb, 0);
+	skb_set_network_header(skb, skb->len);
+	iph = (struct ipv6hdr *) skb_put(skb, sizeof(struct ipv6hdr));
+
+	skb_set_transport_header(skb, skb->len);
+	udph = (struct udphdr *) skb_put(skb, sizeof(struct udphdr));
 	skb_set_queue_mapping(skb, queue_map);
 	skb->priority = pkt_dev->skb_priority;
-	iph = ipv6_hdr(skb);
-	udph = udp_hdr(skb);
 
 	memcpy(eth, pkt_dev->hh, 12);
 	*(__be16 *) &eth[12] = protocol;
@@ -2875,8 +2862,6 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 	iph->daddr = pkt_dev->cur_in6_daddr;
 	iph->saddr = pkt_dev->cur_in6_saddr;
 
-	skb->mac_header = (skb->network_header - ETH_HLEN -
-			   pkt_dev->pkt_overhead);
 	skb->protocol = protocol;
 	skb->dev = odev;
 	skb->pkt_type = PACKET_HOST;
-- 
cgit v0.10.2


From 00f97da17a0c8d656d0c9a60b1d7f38735f69817 Mon Sep 17 00:00:00 2001
From: Amerigo Wang <amwang@redhat.com>
Date: Mon, 3 Jun 2013 16:31:36 +0000
Subject: netpoll: fix position of network header

Similar to the problem in pktgen, netpoll uses skb_tail_offset()
too, as the code is copied from pktgen.

Also use return values of skb_put() directly, this will simiplify
the code.

Reported-by: Thomas Graf <tgraf@suug.ch>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Daniel Borkmann <dborkmann@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 688517c..03c8ec3 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -676,8 +676,6 @@ static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo
 
 		spin_lock_irqsave(&npinfo->rx_lock, flags);
 		list_for_each_entry_safe(np, tmp, &npinfo->rx_np, rx) {
-			unsigned long tail_offset;
-
 			if (!ipv6_addr_equal(daddr, &np->local_ip.in6))
 				continue;
 
@@ -691,30 +689,20 @@ static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo
 			send_skb->dev = skb->dev;
 
 			skb_reset_network_header(send_skb);
-			skb_put(send_skb, sizeof(struct ipv6hdr));
-			hdr = ipv6_hdr(send_skb);
-
+			hdr = (struct ipv6hdr *) skb_put(send_skb, sizeof(struct ipv6hdr));
 			*(__be32*)hdr = htonl(0x60000000);
-
 			hdr->payload_len = htons(size);
 			hdr->nexthdr = IPPROTO_ICMPV6;
 			hdr->hop_limit = 255;
 			hdr->saddr = *saddr;
 			hdr->daddr = *daddr;
 
-			tail_offset = skb_tail_offset(skb);
-			if (tail_offset > 0xffff) {
-				kfree_skb(send_skb);
-				continue;
-			}
-			skb_set_network_header(send_skb, tail_offset);
-			skb_put(send_skb, size);
-
-			icmp6h = (struct icmp6hdr *)skb_transport_header(skb);
+			icmp6h = (struct icmp6hdr *) skb_put(send_skb, sizeof(struct icmp6hdr));
 			icmp6h->icmp6_type = NDISC_NEIGHBOUR_ADVERTISEMENT;
 			icmp6h->icmp6_router = 0;
 			icmp6h->icmp6_solicited = 1;
-			target = (struct in6_addr *)(skb_transport_header(send_skb) + sizeof(struct icmp6hdr));
+
+			target = (struct in6_addr *) skb_put(send_skb, sizeof(struct in6_addr));
 			*target = msg->target;
 			icmp6h->icmp6_cksum = csum_ipv6_magic(saddr, daddr, size,
 							      IPPROTO_ICMPV6,
-- 
cgit v0.10.2


From 15dd16c233b6d5ceea3a00f18d7c42902d0ac6b6 Mon Sep 17 00:00:00 2001
From: Li RongQing <roy.qing.li@gmail.com>
Date: Mon, 3 Jun 2013 22:11:16 +0000
Subject: cxgb3: Correct comparisons and calculations using skb->tail and
 skb-transport_header

This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->transport_header
will be an offset from head. This is corrected by using wrappers that
ensure that comparisons and calculations are always made using pointers.

Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index 46d1efc..687ec4a 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -1583,7 +1583,7 @@ static void deferred_unmap_destructor(struct sk_buff *skb)
 	dui = (struct deferred_unmap_info *)skb->head;
 	p = dui->addr;
 
-	if (skb->tail - skb->transport_header)
+	if (skb_tail_pointer(skb) - skb_transport_header(skb))
 		pci_unmap_single(dui->pdev, *p++, skb_tail_pointer(skb) -
 				 skb_transport_header(skb), PCI_DMA_TODEVICE);
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index 2bfbb20..ac311f5 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -1294,7 +1294,7 @@ static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb)
 
 	flits = skb_transport_offset(skb) / 8U;   /* headers */
 	cnt = skb_shinfo(skb)->nr_frags;
-	if (skb->tail != skb->transport_header)
+	if (skb_tail_pointer(skb) != skb_transport_header(skb))
 		cnt++;
 	return flits + sgl_len(cnt);
 }
-- 
cgit v0.10.2


From 7a3e2585f2fd543ac7284a1f09641628f730f720 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Tue, 4 Jun 2013 00:03:27 +0000
Subject: net: emaclite: Use platform resource table

Read data directly from platform recource table
and do not use of_irq_to_resource().
Also use devm_request_and_ioremap() for probe
functions simplification.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index aaadf7e..c4d8aef 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1074,13 +1074,14 @@ static int xemaclite_send(struct sk_buff *orig_skb, struct net_device *dev)
  * This function un maps the IO region of the Emaclite device and frees the net
  * device.
  */
-static void xemaclite_remove_ndev(struct net_device *ndev)
+static void xemaclite_remove_ndev(struct net_device *ndev,
+				  struct platform_device *pdev)
 {
 	if (ndev) {
 		struct net_local *lp = netdev_priv(ndev);
 
 		if (lp->base_addr)
-			iounmap((void __iomem __force *) (lp->base_addr));
+			devm_iounmap(&pdev->dev, lp->base_addr);
 		free_netdev(ndev);
 	}
 }
@@ -1126,8 +1127,7 @@ static struct net_device_ops xemaclite_netdev_ops;
  */
 static int xemaclite_of_probe(struct platform_device *ofdev)
 {
-	struct resource r_irq; /* Interrupt resources */
-	struct resource r_mem; /* IO mem resources */
+	struct resource *res;
 	struct net_device *ndev = NULL;
 	struct net_local *lp = NULL;
 	struct device *dev = &ofdev->dev;
@@ -1137,20 +1137,6 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 
 	dev_info(dev, "Device Tree Probing\n");
 
-	/* Get iospace for the device */
-	rc = of_address_to_resource(ofdev->dev.of_node, 0, &r_mem);
-	if (rc) {
-		dev_err(dev, "invalid address\n");
-		return rc;
-	}
-
-	/* Get IRQ for the device */
-	rc = of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq);
-	if (!rc) {
-		dev_err(dev, "no IRQ found\n");
-		return rc;
-	}
-
 	/* Create an ethernet device instance */
 	ndev = alloc_etherdev(sizeof(struct net_local));
 	if (!ndev)
@@ -1159,29 +1145,25 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 	dev_set_drvdata(dev, ndev);
 	SET_NETDEV_DEV(ndev, &ofdev->dev);
 
-	ndev->irq = r_irq.start;
-	ndev->mem_start = r_mem.start;
-	ndev->mem_end = r_mem.end;
-
 	lp = netdev_priv(ndev);
 	lp->ndev = ndev;
 
-	if (!request_mem_region(ndev->mem_start,
-				ndev->mem_end - ndev->mem_start + 1,
-				DRIVER_NAME)) {
-		dev_err(dev, "Couldn't lock memory region at %p\n",
-			(void *)ndev->mem_start);
-		rc = -EBUSY;
-		goto error2;
+	/* Get IRQ for the device */
+	res = platform_get_resource(ofdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_err(dev, "no IRQ found\n");
+		goto error;
 	}
 
-	/* Get the virtual base address for the device */
-	lp->base_addr = ioremap(r_mem.start, resource_size(&r_mem));
-	if (NULL == lp->base_addr) {
-		dev_err(dev, "EmacLite: Could not allocate iomem\n");
-		rc = -EIO;
-		goto error1;
-	}
+	ndev->irq = res->start;
+
+	res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
+	lp->base_addr = devm_request_and_ioremap(&ofdev->dev, res);
+	if (!lp->base_addr)
+		goto error;
+
+	ndev->mem_start = res->start;
+	ndev->mem_end = res->end;
 
 	spin_lock_init(&lp->reset_lock);
 	lp->next_tx_buf_to_use = 0x0;
@@ -1219,7 +1201,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 	if (rc) {
 		dev_err(dev,
 			"Cannot register network device, aborting\n");
-		goto error1;
+		goto error;
 	}
 
 	dev_info(dev,
@@ -1228,11 +1210,8 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 		 (unsigned int __force)lp->base_addr, ndev->irq);
 	return 0;
 
-error1:
-	release_mem_region(ndev->mem_start, resource_size(&r_mem));
-
-error2:
-	xemaclite_remove_ndev(ndev);
+error:
+	xemaclite_remove_ndev(ndev, ofdev);
 	return rc;
 }
 
@@ -1267,9 +1246,7 @@ static int xemaclite_of_remove(struct platform_device *of_dev)
 		of_node_put(lp->phy_node);
 	lp->phy_node = NULL;
 
-	release_mem_region(ndev->mem_start, ndev->mem_end-ndev->mem_start + 1);
-
-	xemaclite_remove_ndev(ndev);
+	xemaclite_remove_ndev(ndev, of_dev);
 	dev_set_drvdata(dev, NULL);
 
 	return 0;
-- 
cgit v0.10.2


From aff5c3557cf72fcad913d8b4b44b055a4e034bb5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 4 Jun 2013 00:31:19 +0000
Subject: net: sun4i-emac: Remove redundant platform_set_drvdata()

Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index 0bb2f4a..e9c8dbe 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -898,8 +898,6 @@ static int emac_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
 
-	platform_set_drvdata(pdev, NULL);
-
 	unregister_netdev(ndev);
 	free_netdev(ndev);
 
-- 
cgit v0.10.2


From 11a164a04382d735230b01f4cc46ad78a7c4abf6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 4 Jun 2013 00:31:20 +0000
Subject: net: sun4i-emac: Staticize local symbols

Some symbols referenced only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stefan Roese <sr@denx.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index e9c8dbe..50b853a 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -258,7 +258,7 @@ static const struct ethtool_ops emac_ethtool_ops = {
 	.get_link	= ethtool_op_get_link,
 };
 
-unsigned int emac_setup(struct net_device *ndev)
+static unsigned int emac_setup(struct net_device *ndev)
 {
 	struct emac_board_info *db = netdev_priv(ndev);
 	unsigned int reg_val;
@@ -310,7 +310,7 @@ unsigned int emac_setup(struct net_device *ndev)
 	return 0;
 }
 
-unsigned int emac_powerup(struct net_device *ndev)
+static unsigned int emac_powerup(struct net_device *ndev)
 {
 	struct emac_board_info *db = netdev_priv(ndev);
 	unsigned int reg_val;
-- 
cgit v0.10.2


From 482a9c74fa17c5d584995c19e1a36eaf710d1193 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Mon, 3 Jun 2013 17:29:33 +0300
Subject: mac80211: fix powersave bug and clean up ieee80211_rx_bss_info

ieee80211_rx_bss_info() deals with dtim_period setting and PS update
when associated. Move all these to another locations cleaning this
function. Also, the current implementation is buggy because when it
calls ieee80211_recalc_ps() bss_conf->dtim_period is notset properly
yet and thus nothing will happen.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index df8170a..aa5cd2e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2737,24 +2737,9 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	int freq;
 	struct ieee80211_bss *bss;
 	struct ieee80211_channel *channel;
-	bool need_ps = false;
 
 	sdata_assert_lock(sdata);
 
-	if ((sdata->u.mgd.associated &&
-	     ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) ||
-	    (sdata->u.mgd.assoc_data &&
-	     ether_addr_equal(mgmt->bssid,
-			      sdata->u.mgd.assoc_data->bss->bssid))) {
-		/* not previously set so we may need to recalc */
-		need_ps = sdata->u.mgd.associated && !sdata->u.mgd.dtim_period;
-
-		if (elems->tim && !elems->parse_error) {
-			const struct ieee80211_tim_ie *tim_ie = elems->tim;
-			sdata->u.mgd.dtim_period = tim_ie->dtim_period;
-		}
-	}
-
 	if (elems->ds_params)
 		freq = ieee80211_channel_to_frequency(elems->ds_params[0],
 						      rx_status->band);
@@ -2775,12 +2760,6 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	    !ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid))
 		return;
 
-	if (need_ps) {
-		mutex_lock(&local->iflist_mtx);
-		ieee80211_recalc_ps(local, -1);
-		mutex_unlock(&local->iflist_mtx);
-	}
-
 	ieee80211_sta_process_chanswitch(sdata, rx_status->mactime,
 					 elems, true);
 
@@ -2894,6 +2873,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				       len - baselen, false, &elems);
 
 		ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
+		if (elems.tim && !elems.parse_error) {
+			const struct ieee80211_tim_ie *tim_ie = elems.tim;
+			ifmgd->dtim_period = tim_ie->dtim_period;
+		}
 		ifmgd->assoc_data->have_beacon = true;
 		ifmgd->assoc_data->need_beacon = false;
 		if (local->hw.flags & IEEE80211_HW_TIMING_BEACON_ONLY) {
@@ -3096,6 +3079,11 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		}
 
 		changed |= BSS_CHANGED_DTIM_PERIOD;
+
+		mutex_lock(&local->iflist_mtx);
+		ieee80211_recalc_ps(local, -1);
+		mutex_unlock(&local->iflist_mtx);
+
 		ieee80211_recalc_ps_vif(sdata);
 	}
 
-- 
cgit v0.10.2


From 5ec42ecf497f9c5e55fbe57e894efc5ce91c47cd Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Mon, 27 May 2013 13:49:03 +0300
Subject: iwlwifi: mvm: enable PM always in unassociated mode

In unassociated BSS STA mode FW verifies both power save and power
management flags to decide on switching power off. The driver currently
sets power management flag according to mac80211 decision. As result, in
unassociated mode power management flag is down and power consumption is
high. Change power management enablement. When unassociated in BPS and
LP power save modes enable power management regardless of mac80211
decision. Rely on mac80211 decision if associated. Add power management
state update during associated/disassociated modes transitions.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index c13559b..f297690 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -763,6 +763,9 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 			if (ret)
 				IWL_ERR(mvm, "failed to update quotas\n");
 		}
+		ret = iwl_mvm_power_update_mode(mvm, vif);
+		if (ret)
+			IWL_ERR(mvm, "failed to update power mode\n");
 	} else if (changes & BSS_CHANGED_DTIM_PERIOD) {
 		/*
 		 * We received a beacon _after_ association so
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 6cb98ce..3760a33 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -168,6 +168,8 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		return;
 
 	cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
+	if (!vif->bss_conf.assoc)
+		cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
-- 
cgit v0.10.2


From 9116a3683902583a302ac5dcb283416d504d9bb4 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 2 Jun 2013 19:54:01 +0300
Subject: iwlwifi: mvm: fix MCAST in AP mode

In multicast, there is no retries nor RTS since there is no
specific recipient that can ACK or send CTS. This means
that we must not use the rate scale table for multicast
frames.
This true for any frame that doesn't have a valid
ieee80211_sta pointer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index f212f16..a830eb6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -175,7 +175,7 @@ static void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm,
 	 * table is controlled by LINK_QUALITY commands
 	 */
 
-	if (ieee80211_is_data(fc)) {
+	if (ieee80211_is_data(fc) && sta) {
 		tx_cmd->initial_rate_index = 0;
 		tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
 		return;
-- 
cgit v0.10.2


From fded313ec045024d4f769ce6b3e41fe343c167b0 Mon Sep 17 00:00:00 2001
From: Eytan Lifshitz <eytan.lifshitz@intel.com>
Date: Tue, 4 Jun 2013 12:28:51 +0300
Subject: iwlwifi: mvm: don't request SMPS on non-STA iface

The Thermal Throttling code could do that, fix it.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/tt.c b/drivers/net/wireless/iwlwifi/mvm/tt.c
index 4665fc0..a7e3b8d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tt.c
@@ -371,6 +371,9 @@ static void iwl_mvm_tt_smps_iterator(void *_data, u8 *mac,
 	else
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return;
+
 	iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, smps_mode);
 }
 
-- 
cgit v0.10.2


From 989c6505cdda587f87573bb6828f23964dd3d19b Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Thu, 16 May 2013 17:34:17 +0300
Subject: mac80211: Use suitable semantics for beacon availability indication

Currently beacon availability upon association is marked by have_beacon
flag of assoc_data structure that becomes unavailable when association
completes. However beacon availability indication is required also after
association to inform a driver. Currently dtim_period parameter is used
for this purpose. Move have_beacon flag to another structure, persistant
throughout a interface's life cycle. Use suitable sematics for beacon
availability indication.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
[fix another instance of BSS_CHANGED_DTIM_PERIOD in docs]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index b807dda..c942eb0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -785,7 +785,7 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 			if (ret)
 				IWL_ERR(mvm, "failed to update quotas\n");
 		}
-	} else if (changes & BSS_CHANGED_DTIM_PERIOD) {
+	} else if (changes & BSS_CHANGED_BEACON_INFO) {
 		/*
 		 * We received a beacon _after_ association so
 		 * remove the session protection.
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index cb37f82..a405a7a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -217,8 +217,8 @@ struct ieee80211_chanctx_conf {
  * @BSS_CHANGED_TXPOWER: TX power setting changed for this interface
  * @BSS_CHANGED_P2P_PS: P2P powersave settings (CTWindow, opportunistic PS)
  *	changed (currently only in P2P client mode, GO mode will be later)
- * @BSS_CHANGED_DTIM_PERIOD: the DTIM period value was changed (set when
- *	it becomes valid, managed mode only)
+ * @BSS_CHANGED_BEACON_INFO: Data from the AP's beacon became available:
+ *	currently dtim_period only is under consideration.
  * @BSS_CHANGED_BANDWIDTH: The bandwidth used by this interface changed,
  *	note that this is only called when it changes after the channel
  *	context had been assigned.
@@ -244,7 +244,7 @@ enum ieee80211_bss_change {
 	BSS_CHANGED_PS			= 1<<17,
 	BSS_CHANGED_TXPOWER		= 1<<18,
 	BSS_CHANGED_P2P_PS		= 1<<19,
-	BSS_CHANGED_DTIM_PERIOD		= 1<<20,
+	BSS_CHANGED_BEACON_INFO		= 1<<20,
 	BSS_CHANGED_BANDWIDTH		= 1<<21,
 
 	/* when adding here, make sure to change ieee80211_reconfig */
@@ -288,7 +288,7 @@ enum ieee80211_rssi_event {
  *	IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE hardware flag
  * @dtim_period: num of beacons before the next DTIM, for beaconing,
  *	valid in station mode only if after the driver was notified
- *	with the %BSS_CHANGED_DTIM_PERIOD flag, will be non-zero then.
+ *	with the %BSS_CHANGED_BEACON_INFO flag, will be non-zero then.
  * @sync_tsf: last beacon's/probe response's TSF timestamp (could be old
  *	as it may have been received during scanning long ago). If the
  *	HW flag %IEEE80211_HW_TIMING_BEACON_ONLY is set, then this can
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9eed6f1..7a6f1a0 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -366,7 +366,7 @@ struct ieee80211_mgd_assoc_data {
 	u8 ssid_len;
 	u8 supp_rates_len;
 	bool wmm, uapsd;
-	bool have_beacon, need_beacon;
+	bool need_beacon;
 	bool synced;
 	bool timeout_started;
 
@@ -404,6 +404,7 @@ struct ieee80211_if_managed {
 
 	bool powersave; /* powersave requested for this iface */
 	bool broken_ap; /* AP is broken -- turn off powersave */
+	bool have_beacon;
 	u8 dtim_period;
 	enum ieee80211_smps_mode req_smps, /* requested smps mode */
 				 driver_smps_mode; /* smps mode request */
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index aa5cd2e..ad9bb9e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1360,7 +1360,7 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata)
 			  IEEE80211_STA_CONNECTION_POLL))
 		return false;
 
-	if (!sdata->vif.bss_conf.dtim_period)
+	if (!mgd->have_beacon)
 		return false;
 
 	rcu_read_lock();
@@ -1771,7 +1771,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_led_assoc(local, 1);
 
-	if (sdata->u.mgd.assoc_data->have_beacon) {
+	if (sdata->u.mgd.have_beacon) {
 		/*
 		 * If the AP is buggy we may get here with no DTIM period
 		 * known, so assume it's 1 which is the only safe assumption
@@ -1779,7 +1779,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		 * probably just won't work at all.
 		 */
 		bss_conf->dtim_period = sdata->u.mgd.dtim_period ?: 1;
-		bss_info_changed |= BSS_CHANGED_DTIM_PERIOD;
+		bss_info_changed |= BSS_CHANGED_BEACON_INFO;
 	} else {
 		bss_conf->dtim_period = 0;
 	}
@@ -1903,6 +1903,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	del_timer_sync(&sdata->u.mgd.chswitch_timer);
 
 	sdata->vif.bss_conf.dtim_period = 0;
+	ifmgd->have_beacon = false;
 
 	ifmgd->flags = 0;
 	ieee80211_vif_release_channel(sdata);
@@ -2877,7 +2878,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 			const struct ieee80211_tim_ie *tim_ie = elems.tim;
 			ifmgd->dtim_period = tim_ie->dtim_period;
 		}
-		ifmgd->assoc_data->have_beacon = true;
+		ifmgd->have_beacon = true;
 		ifmgd->assoc_data->need_beacon = false;
 		if (local->hw.flags & IEEE80211_HW_TIMING_BEACON_ONLY) {
 			sdata->vif.bss_conf.sync_tsf =
@@ -3059,7 +3060,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	 * If we haven't had a beacon before, tell the driver about the
 	 * DTIM period (and beacon timing if desired) now.
 	 */
-	if (!bss_conf->dtim_period) {
+	if (!ifmgd->have_beacon) {
 		/* a few bogus AP send dtim_period = 0 or no TIM IE */
 		if (elems.tim)
 			bss_conf->dtim_period = elems.tim->dtim_period ?: 1;
@@ -3078,7 +3079,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				sdata->vif.bss_conf.sync_dtim_count = 0;
 		}
 
-		changed |= BSS_CHANGED_DTIM_PERIOD;
+		changed |= BSS_CHANGED_BEACON_INFO;
+		ifmgd->have_beacon = true;
 
 		mutex_lock(&local->iflist_mtx);
 		ieee80211_recalc_ps(local, -1);
@@ -3424,8 +3426,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 
 	if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started &&
 	    time_after(jiffies, ifmgd->assoc_data->timeout)) {
-		if ((ifmgd->assoc_data->need_beacon &&
-		     !ifmgd->assoc_data->have_beacon) ||
+		if ((ifmgd->assoc_data->need_beacon && !ifmgd->have_beacon) ||
 		    ieee80211_do_assoc(sdata)) {
 			u8 bssid[ETH_ALEN];
 
@@ -4193,6 +4194,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 
 	ifmgd->assoc_data = assoc_data;
 	ifmgd->dtim_period = 0;
+	ifmgd->have_beacon = false;
 
 	err = ieee80211_prep_connection(sdata, req->bss, true);
 	if (err)
@@ -4224,7 +4226,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 			ifmgd->dtim_period = tim->dtim_period;
 			dtim_count = tim->dtim_count;
 		}
-		assoc_data->have_beacon = true;
+		ifmgd->have_beacon = true;
 		assoc_data->timeout = jiffies;
 		assoc_data->timeout_started = true;
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 89a8377..5a6c135 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1584,8 +1584,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 				   BSS_CHANGED_ARP_FILTER |
 				   BSS_CHANGED_PS;
 
-			if (sdata->u.mgd.dtim_period)
-				changed |= BSS_CHANGED_DTIM_PERIOD;
+			/* Re-send beacon info report to the driver */
+			if (sdata->u.mgd.have_beacon)
+				changed |= BSS_CHANGED_BEACON_INFO;
 
 			sdata_lock(sdata);
 			ieee80211_bss_info_change_notify(sdata, changed);
-- 
cgit v0.10.2


From 780b40df12cf0161d8ccc5381940e04584793933 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 5 Jun 2013 09:32:50 +0200
Subject: wireless: fix kernel-doc

Some kernel-doc fixes for forgotten fields and renamed things.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/Documentation/DocBook/80211.tmpl b/Documentation/DocBook/80211.tmpl
index ebe8969..49267ea 100644
--- a/Documentation/DocBook/80211.tmpl
+++ b/Documentation/DocBook/80211.tmpl
@@ -127,12 +127,11 @@
 !Finclude/net/cfg80211.h cfg80211_ibss_params
 !Finclude/net/cfg80211.h cfg80211_connect_params
 !Finclude/net/cfg80211.h cfg80211_pmksa
-!Finclude/net/cfg80211.h cfg80211_send_rx_auth
-!Finclude/net/cfg80211.h cfg80211_send_auth_timeout
-!Finclude/net/cfg80211.h cfg80211_send_rx_assoc
-!Finclude/net/cfg80211.h cfg80211_send_assoc_timeout
-!Finclude/net/cfg80211.h cfg80211_send_deauth
-!Finclude/net/cfg80211.h cfg80211_send_disassoc
+!Finclude/net/cfg80211.h cfg80211_rx_mlme_mgmt
+!Finclude/net/cfg80211.h cfg80211_auth_timeout
+!Finclude/net/cfg80211.h cfg80211_rx_assoc_resp
+!Finclude/net/cfg80211.h cfg80211_assoc_timeout
+!Finclude/net/cfg80211.h cfg80211_tx_mlme_mgmt
 !Finclude/net/cfg80211.h cfg80211_ibss_joined
 !Finclude/net/cfg80211.h cfg80211_connect_result
 !Finclude/net/cfg80211.h cfg80211_roamed
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 5b20806..855c76c 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2853,7 +2853,7 @@ struct cfg80211_cached_keys;
  * @current_bss: (private) Used by the internal configuration code
  * @channel: (private) Used by the internal configuration code to track
  *	the user-set AP, monitor and WDS channel
- * @preset_chan: (private) Used by the internal configuration code to
+ * @preset_chandef: (private) Used by the internal configuration code to
  *	track the channel to be used for AP later
  * @bssid: (private) Used by the internal configuration code
  * @ssid: (private) Used by the internal configuration code
@@ -2875,6 +2875,15 @@ struct cfg80211_cached_keys;
  * @p2p_started: true if this is a P2P Device that has been started
  * @cac_started: true if DFS channel availability check has been started
  * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
+ * @ps: powersave mode is enabled
+ * @ps_timeout: dynamic powersave timeout
+ * @ap_unexpected_nlportid: (private) netlink port ID of application
+ *	registered for unexpected class 3 frames (AP mode)
+ * @conn: (private) cfg80211 software SME connection state machine data
+ * @connect_keys: (private) keys to set after connection is established
+ * @ibss_fixed: (private) IBSS is using fixed BSSID
+ * @event_list: (private) list for internal event processing
+ * @event_lock: (private) lock for event list
  */
 struct wireless_dev {
 	struct wiphy *wiphy;
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 41c28b9..bd12fc5 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -297,6 +297,9 @@ struct sta_ampdu_mlme {
  * @rcu_head: RCU head used for freeing this station struct
  * @cur_max_bandwidth: maximum bandwidth to use for TX to the station,
  *	taken from HT/VHT capabilities or VHT operating mode notification
+ * @chains: chains ever used for RX from this station
+ * @chain_signal_last: last signal (per chain)
+ * @chain_signal_avg: signal average (per chain)
  */
 struct sta_info {
 	/* General information, mostly static */
-- 
cgit v0.10.2


From 9cefbbc9c8f9abe0bc514dcfca46e8051ee84050 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Tue, 4 Jun 2013 22:22:15 +0000
Subject: netfilter: nfnetlink_queue: cleanup copy_range usage

For every packet queued, we check if configured copy_range
is 0, and treat that as 'copy entire packet'.

We can move this check to the queue configuration, and can
set copy_range appropriately.

Also, convert repetitive '0xffff - NLA_HDRLEN' to a macro.

[ queue initialization still used 0xffff, although its harmless
  since the initial setting is overwritten on queue config ]

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index cff4449..3c42181 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -41,6 +41,14 @@
 
 #define NFQNL_QMAX_DEFAULT 1024
 
+/* We're using struct nlattr which has 16bit nla_len. Note that nla_len
+ * includes the header length. Thus, the maximum packet length that we
+ * support is 65531 bytes. We send truncated packets if the specified length
+ * is larger than that.  Userspace can check for presence of NFQA_CAP_LEN
+ * attribute to detect truncation.
+ */
+#define NFQNL_MAX_COPY_RANGE (0xffff - NLA_HDRLEN)
+
 struct nfqnl_instance {
 	struct hlist_node hlist;		/* global list of queues */
 	struct rcu_head rcu;
@@ -122,7 +130,7 @@ instance_create(struct nfnl_queue_net *q, u_int16_t queue_num,
 	inst->queue_num = queue_num;
 	inst->peer_portid = portid;
 	inst->queue_maxlen = NFQNL_QMAX_DEFAULT;
-	inst->copy_range = 0xffff;
+	inst->copy_range = NFQNL_MAX_COPY_RANGE;
 	inst->copy_mode = NFQNL_COPY_NONE;
 	spin_lock_init(&inst->lock);
 	INIT_LIST_HEAD(&inst->queue_list);
@@ -333,10 +341,9 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 			return NULL;
 
 		data_len = ACCESS_ONCE(queue->copy_range);
-		if (data_len == 0 || data_len > entskb->len)
+		if (data_len > entskb->len)
 			data_len = entskb->len;
 
-
 		if (!entskb->head_frag ||
 		    skb_headlen(entskb) < L1_CACHE_BYTES ||
 		    skb_shinfo(entskb)->nr_frags >= MAX_SKB_FRAGS)
@@ -727,13 +734,8 @@ nfqnl_set_mode(struct nfqnl_instance *queue,
 
 	case NFQNL_COPY_PACKET:
 		queue->copy_mode = mode;
-		/* We're using struct nlattr which has 16bit nla_len. Note that
-		 * nla_len includes the header length. Thus, the maximum packet
-		 * length that we support is 65531 bytes. We send truncated
-		 * packets if the specified length is larger than that.
-		 */
-		if (range > 0xffff - NLA_HDRLEN)
-			queue->copy_range = 0xffff - NLA_HDRLEN;
+		if (range == 0 || range > NFQNL_MAX_COPY_RANGE)
+			queue->copy_range = NFQNL_MAX_COPY_RANGE;
 		else
 			queue->copy_range = range;
 		break;
-- 
cgit v0.10.2


From 7f87712c0152511a1842698ad8dca425fee2dc4f Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Tue, 4 Jun 2013 22:22:16 +0000
Subject: netfilter: nfnetlink_queue: only add CAP_LEN attr when needed

CAP_LEN contains the size of the network packet we're queueing to
userspace, i.e. normally it is the same as the NFQA_PAYLOAD attribute len.

Include it only in the unlikely case when NFQA_PAYLOAD is truncated due
to copy_range limitations.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index 3c42181..eb2cde8 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -472,7 +472,8 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 	if (ct && nfqnl_ct_put(skb, ct, ctinfo) < 0)
 		goto nla_put_failure;
 
-	if (cap_len > 0 && nla_put_be32(skb, NFQA_CAP_LEN, htonl(cap_len)))
+	if (cap_len > data_len &&
+	    nla_put_be32(skb, NFQA_CAP_LEN, htonl(cap_len)))
 		goto nla_put_failure;
 
 	if (nfqnl_put_packet_info(skb, entskb))
-- 
cgit v0.10.2


From 4c4d41f200db375b2d2cc6d0a1de0606c8266398 Mon Sep 17 00:00:00 2001
From: Fan Du <fan.du@windriver.com>
Date: Thu, 6 Jun 2013 10:15:54 +0800
Subject: xfrm: add LINUX_MIB_XFRMACQUIREERROR statistic counter

When host ping its peer, ICMP echo request packet triggers IPsec
policy, then host negotiates SA secret with its peer. After IKE
installed SA for OUT direction, but before SA for IN direction
installed, host get ICMP echo reply from its peer. At the time
being, the SA state for IN direction could be XFRM_STATE_ACQ,
then the received packet will be dropped after adding
LINUX_MIB_XFRMINSTATEINVALID statistic.

Adding a LINUX_MIB_XFRMACQUIREERROR statistic counter for such
scenario when SA in larval state is much clearer for user than
LINUX_MIB_XFRMINSTATEINVALID which indicates the SA is totally
bad.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index df2e8b4..ea17542 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -287,6 +287,7 @@ enum
 	LINUX_MIB_XFRMOUTPOLERROR,		/* XfrmOutPolError */
 	LINUX_MIB_XFRMFWDHDRERROR,		/* XfrmFwdHdrError*/
 	LINUX_MIB_XFRMOUTSTATEINVALID,		/* XfrmOutStateInvalid */
+	LINUX_MIB_XFRMACQUIREERROR,		/* XfrmAcquireError */
 	__LINUX_MIB_XFRMMAX
 };
 
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index ab2bb42..8884399 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -163,6 +163,11 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
 		skb->sp->xvec[skb->sp->len++] = x;
 
 		spin_lock(&x->lock);
+		if (unlikely(x->km.state == XFRM_STATE_ACQ)) {
+			XFRM_INC_STATS(net, LINUX_MIB_XFRMACQUIREERROR);
+			goto drop_unlock;
+		}
+
 		if (unlikely(x->km.state != XFRM_STATE_VALID)) {
 			XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEINVALID);
 			goto drop_unlock;
diff --git a/net/xfrm/xfrm_proc.c b/net/xfrm/xfrm_proc.c
index c721b0d..80cd1e5 100644
--- a/net/xfrm/xfrm_proc.c
+++ b/net/xfrm/xfrm_proc.c
@@ -44,6 +44,7 @@ static const struct snmp_mib xfrm_mib_list[] = {
 	SNMP_MIB_ITEM("XfrmOutPolError", LINUX_MIB_XFRMOUTPOLERROR),
 	SNMP_MIB_ITEM("XfrmFwdHdrError", LINUX_MIB_XFRMFWDHDRERROR),
 	SNMP_MIB_ITEM("XfrmOutStateInvalid", LINUX_MIB_XFRMOUTSTATEINVALID),
+	SNMP_MIB_ITEM("XfrmAcquireError", LINUX_MIB_XFRMACQUIREERROR),
 	SNMP_MIB_SENTINEL
 };
 
-- 
cgit v0.10.2


From 41d5ffeb9d12f760722f00ba0756389d32435124 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Jun 2013 09:43:16 +0000
Subject: sh_eth: remove #ifdef around EDSR and GECMR bit definitions

Remove #ifdef around 'enum EDSR_BIT' and 'enum GECMR_BIT', replacing it with the
comments on which SoCs these registers exist.

SH7757 also has EDSR, so add a comment about it to 'enum EDSR_BIT'.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
[Sergei: folded in the former patch #2, updated the changelog, reworded the
subject, changing the prefix.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 1ddc9f2..8daba1d 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -166,19 +166,16 @@ enum {
 /*
  * Register's bits
  */
-#if defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763) ||\
-    defined(CONFIG_ARCH_R8A7740)
-/* EDSR */
+/* EDSR : sh7734, sh7757, sh7763, and r8a7740 only */
 enum EDSR_BIT {
 	EDSR_ENT = 0x01, EDSR_ENR = 0x02,
 };
 #define EDSR_ENALL (EDSR_ENT|EDSR_ENR)
 
-/* GECMR */
+/* GECMR : sh7734, sh7763 and r8a7740 only */
 enum GECMR_BIT {
 	GECMR_10 = 0x0, GECMR_100 = 0x04, GECMR_1000 = 0x01,
 };
-#endif
 
 /* EDMR */
 enum DMAC_M_BIT {
-- 
cgit v0.10.2


From ddcd91c6b8ec60a6bd5d3691d2cfaf4447215da1 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Jun 2013 09:44:27 +0000
Subject: sh_eth: use EDSR_ENALL to set EDSR

Use now always available EDSR_ENALL instead of the bare number to set EDSR.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
[Sergei: added the changelog, reworded the subject, changing the prefix.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 399a7c9..8b7ff6a 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -523,7 +523,7 @@ static int sh_eth_reset(struct net_device *ndev)
 	int ret = 0;
 
 	if (sh_eth_is_gether(mdp)) {
-		sh_eth_write(ndev, 0x03, EDSR);
+		sh_eth_write(ndev, EDSR_ENALL, EDSR);
 		sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER,
 				EDMR);
 
-- 
cgit v0.10.2


From 04b0ed2ad49834fe47d3c4171ad189c688a222b9 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Jun 2013 09:45:25 +0000
Subject: sh_eth: remove duplicate sh_eth_set_duplex() definitions

Remove all the duplicate definitions of sh_eth_set_duplex() under  different
#ifdef's, leaving only one outside the #ifdef's. We have to annotate it with
'__maybe_unused' since it's called not from all SoC #ifdef blocks.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
[Sergei: annotated sh_eth_set_duplex() as '__maybe_unused', added the changelog,
reworded the subject, changing the prefix.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 8b7ff6a..856ea88 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -341,10 +341,7 @@ static void sh_eth_select_mii(struct net_device *ndev)
 }
 #endif
 
-/* There is CPU dependent code */
-#if defined(CONFIG_ARCH_R8A7778) || defined(CONFIG_ARCH_R8A7779)
-#define SH_ETH_RESET_DEFAULT	1
-static void sh_eth_set_duplex(struct net_device *ndev)
+static void __maybe_unused sh_eth_set_duplex(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
@@ -354,6 +351,9 @@ static void sh_eth_set_duplex(struct net_device *ndev)
 		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
 }
 
+/* There is CPU dependent code */
+#if defined(CONFIG_ARCH_R8A7778) || defined(CONFIG_ARCH_R8A7779)
+#define SH_ETH_RESET_DEFAULT	1
 static void sh_eth_set_rate(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -391,15 +391,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 };
 #elif defined(CONFIG_CPU_SUBTYPE_SH7724)
 #define SH_ETH_RESET_DEFAULT	1
-static void sh_eth_set_duplex(struct net_device *ndev)
-{
-	struct sh_eth_private *mdp = netdev_priv(ndev);
-
-	if (mdp->duplex) /* Full */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
-	else		/* Half */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
-}
 
 static void sh_eth_set_rate(struct net_device *ndev)
 {
@@ -443,16 +434,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 #define SH_ETH_HAS_TSU	1
 static int sh_eth_check_reset(struct net_device *ndev);
 
-static void sh_eth_set_duplex(struct net_device *ndev)
-{
-	struct sh_eth_private *mdp = netdev_priv(ndev);
-
-	if (mdp->duplex) /* Full */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
-	else		/* Half */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
-}
-
 static void sh_eth_set_rate(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -552,16 +533,6 @@ out:
 	return ret;
 }
 
-static void sh_eth_set_duplex_giga(struct net_device *ndev)
-{
-	struct sh_eth_private *mdp = netdev_priv(ndev);
-
-	if (mdp->duplex) /* Full */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
-	else		/* Half */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
-}
-
 static void sh_eth_set_rate_giga(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -584,7 +555,7 @@ static void sh_eth_set_rate_giga(struct net_device *ndev)
 /* SH7757(GETHERC) */
 static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = {
 	.chip_reset	= sh_eth_chip_reset_giga,
-	.set_duplex	= sh_eth_set_duplex_giga,
+	.set_duplex	= sh_eth_set_duplex,
 	.set_rate	= sh_eth_set_rate_giga,
 
 	.ecsr_value	= ECSR_ICD | ECSR_MPD,
@@ -634,16 +605,6 @@ static void sh_eth_chip_reset(struct net_device *ndev)
 	mdelay(1);
 }
 
-static void sh_eth_set_duplex(struct net_device *ndev)
-{
-	struct sh_eth_private *mdp = netdev_priv(ndev);
-
-	if (mdp->duplex) /* Full */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
-	else		/* Half */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
-}
-
 static void sh_eth_set_rate(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -771,16 +732,6 @@ out:
 	return ret;
 }
 
-static void sh_eth_set_duplex(struct net_device *ndev)
-{
-	struct sh_eth_private *mdp = netdev_priv(ndev);
-
-	if (mdp->duplex) /* Full */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
-	else		/* Half */
-		sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
-}
-
 static void sh_eth_set_rate(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
-- 
cgit v0.10.2


From 9f86134155047720a3685cda21467f68695152d2 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Jun 2013 09:48:09 +0000
Subject: sh_eth: remove SH_ETH_HAS_TSU

Remove SH_ETH_HAS_TSU #define's and #ifdef's. Set three 'struct net_device_ops'
methods that depend on the presence of TSU basing on the 'tsu' field of 'struct
sh_eth_cpu_data'.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
[Sergei: made two method assignments one-liners, added the changelog, reworded
the subject, changing the prefix.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 856ea88..f8d6094 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -431,7 +431,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 };
 #elif defined(CONFIG_CPU_SUBTYPE_SH7757)
 #define SH_ETH_HAS_BOTH_MODULES	1
-#define SH_ETH_HAS_TSU	1
 static int sh_eth_check_reset(struct net_device *ndev);
 
 static void sh_eth_set_rate(struct net_device *ndev)
@@ -592,7 +591,6 @@ static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp)
 }
 
 #elif defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763)
-#define SH_ETH_HAS_TSU	1
 static int sh_eth_check_reset(struct net_device *ndev);
 static void sh_eth_reset_hw_crc(struct net_device *ndev);
 
@@ -693,7 +691,6 @@ static void sh_eth_reset_hw_crc(struct net_device *ndev)
 }
 
 #elif defined(CONFIG_ARCH_R8A7740)
-#define SH_ETH_HAS_TSU	1
 static int sh_eth_check_reset(struct net_device *ndev);
 
 static void sh_eth_chip_reset(struct net_device *ndev)
@@ -791,7 +788,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 };
 #elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
 #define SH_ETH_RESET_DEFAULT	1
-#define SH_ETH_HAS_TSU	1
 static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
 	.tsu		= 1,
@@ -2105,7 +2101,6 @@ static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq,
 	return phy_mii_ioctl(phydev, rq, cmd);
 }
 
-#if defined(SH_ETH_HAS_TSU)
 /* For TSU_POSTn. Please refer to the manual about this (strange) bitfields */
 static void *sh_eth_tsu_get_post_reg_offset(struct sh_eth_private *mdp,
 					    int entry)
@@ -2448,7 +2443,6 @@ static int sh_eth_vlan_rx_kill_vid(struct net_device *ndev,
 
 	return 0;
 }
-#endif /* SH_ETH_HAS_TSU */
 
 /* SuperH's TSU register init function */
 static void sh_eth_tsu_init(struct sh_eth_private *mdp)
@@ -2587,16 +2581,11 @@ static const u16 *sh_eth_get_register_offset(int register_type)
 	return reg_offset;
 }
 
-static const struct net_device_ops sh_eth_netdev_ops = {
+static struct net_device_ops sh_eth_netdev_ops = {
 	.ndo_open		= sh_eth_open,
 	.ndo_stop		= sh_eth_close,
 	.ndo_start_xmit		= sh_eth_start_xmit,
 	.ndo_get_stats		= sh_eth_get_stats,
-#if defined(SH_ETH_HAS_TSU)
-	.ndo_set_rx_mode	= sh_eth_set_multicast_list,
-	.ndo_vlan_rx_add_vid	= sh_eth_vlan_rx_add_vid,
-	.ndo_vlan_rx_kill_vid	= sh_eth_vlan_rx_kill_vid,
-#endif
 	.ndo_tx_timeout		= sh_eth_tx_timeout,
 	.ndo_do_ioctl		= sh_eth_do_ioctl,
 	.ndo_validate_addr	= eth_validate_addr,
@@ -2677,6 +2666,13 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	sh_eth_set_default_cpu_data(mdp->cd);
 
 	/* set function */
+	if (mdp->cd->tsu) {
+		sh_eth_netdev_ops.ndo_set_rx_mode = sh_eth_set_multicast_list;
+		sh_eth_netdev_ops.ndo_vlan_rx_add_vid = sh_eth_vlan_rx_add_vid;
+		sh_eth_netdev_ops.ndo_vlan_rx_kill_vid =
+			sh_eth_vlan_rx_kill_vid;
+	}
+
 	ndev->netdev_ops = &sh_eth_netdev_ops;
 	SET_ETHTOOL_OPS(ndev, &sh_eth_ethtool_ops);
 	ndev->watchdog_timeo = TX_TIMEOUT;
-- 
cgit v0.10.2


From 5b3dfd13ae8bdebea67c02612fe282baff850bb0 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Jun 2013 09:49:30 +0000
Subject: sh_eth: add IRQ flags to 'struct sh_eth_cpu_data'

The driver supports some SH and SH-Mobile SOCs. There are SOCs with two or more
Ethernet devices, for these we need to pass IRQF_SHARED to request_irq().  Add
the 'irq_flags' field to the 'struct sh_eth_cpu_data' instead of #ifdef'fery.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
[Sergei: properly aligned request_irq() call continuation line, reworded the
changelog, reworded the subject, changing the prefix.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index f8d6094..d0151d0 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -462,6 +462,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 			  EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI,
 	.tx_error_check	= EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE,
 
+	.irq_flags	= IRQF_SHARED,
 	.apr		= 1,
 	.mpr		= 1,
 	.tpauser	= 1,
@@ -570,6 +571,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = {
 	.fdr_value	= 0x0000072f,
 	.rmcr_value	= 0x00000001,
 
+	.irq_flags	= IRQF_SHARED,
 	.apr		= 1,
 	.mpr		= 1,
 	.tpauser	= 1,
@@ -650,6 +652,8 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 #if defined(CONFIG_CPU_SUBTYPE_SH7734)
 	.hw_crc     = 1,
 	.select_mii = 1,
+#else
+	.irq_flags	= IRQF_SHARED,
 #endif
 };
 
@@ -1908,14 +1912,7 @@ static int sh_eth_open(struct net_device *ndev)
 	pm_runtime_get_sync(&mdp->pdev->dev);
 
 	ret = request_irq(ndev->irq, sh_eth_interrupt,
-#if defined(CONFIG_CPU_SUBTYPE_SH7763) || \
-	defined(CONFIG_CPU_SUBTYPE_SH7764) || \
-	defined(CONFIG_CPU_SUBTYPE_SH7757)
-				IRQF_SHARED,
-#else
-				0,
-#endif
-				ndev->name, ndev);
+			  mdp->cd->irq_flags, ndev->name, ndev);
 	if (ret) {
 		dev_err(&ndev->dev, "Can not assign IRQ number\n");
 		return ret;
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 8daba1d..729e77e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -463,6 +463,7 @@ struct sh_eth_cpu_data {
 	unsigned long tx_error_check;
 
 	/* hardware features */
+	unsigned long irq_flags;	/* IRQ configuration flags */
 	unsigned no_psr:1;		/* EtherC DO NOT have PSR */
 	unsigned apr:1;			/* EtherC have APR */
 	unsigned mpr:1;			/* EtherC have MPR */
-- 
cgit v0.10.2


From b7feacf1ee6944fc571802d58dcffaf13b4fb4cc Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Jun 2013 09:50:30 +0000
Subject: sh_eth: remove #ifdef around sh_eth_select_mii()

We can simply remove #ifdef'fery around sh_eth_select_mii(). We have to annotate
it with '__maybe_unused' then.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
[Sergei: added the changelog, reworded the subject, changing the prefix.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index d0151d0..2234a94 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -313,10 +313,7 @@ static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = {
 	[TSU_ADRL31]	= 0x01fc,
 };
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7734) || \
-	defined(CONFIG_CPU_SUBTYPE_SH7763) || \
-	defined(CONFIG_ARCH_R8A7740)
-static void sh_eth_select_mii(struct net_device *ndev)
+static void __maybe_unused sh_eth_select_mii(struct net_device *ndev)
 {
 	u32 value = 0x0;
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -339,7 +336,6 @@ static void sh_eth_select_mii(struct net_device *ndev)
 
 	sh_eth_write(ndev, value, RMII_MII);
 }
-#endif
 
 static void __maybe_unused sh_eth_set_duplex(struct net_device *ndev)
 {
-- 
cgit v0.10.2


From dabdde9ea77d4a77094726c82468a3bd767fb29b Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Jun 2013 09:51:39 +0000
Subject: sh_eth: consolidate sh_eth_reset()

This driver has sh_eth_reset() function for each SoC and this function is almost
always the same, except for the several a bit different variations for Gigabit
Ethernet.  Consolidate every variation into a single function -- which allows
us to get  rid of some more #ifdef'fery.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
[Sergei: moved the new sh_eth_reset() and sh_eth_is_gether() up to decrease the
patch size, fixed function call continuation lines' indentation, reworded the
changelog, reworded the subject, changing the prefix.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 2234a94..d190c1e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -313,6 +313,14 @@ static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = {
 	[TSU_ADRL31]	= 0x01fc,
 };
 
+static int sh_eth_is_gether(struct sh_eth_private *mdp)
+{
+	if (mdp->reg_offset == sh_eth_offset_gigabit)
+		return 1;
+	else
+		return 0;
+}
+
 static void __maybe_unused sh_eth_select_mii(struct net_device *ndev)
 {
 	u32 value = 0x0;
@@ -349,7 +357,6 @@ static void __maybe_unused sh_eth_set_duplex(struct net_device *ndev)
 
 /* There is CPU dependent code */
 #if defined(CONFIG_ARCH_R8A7778) || defined(CONFIG_ARCH_R8A7779)
-#define SH_ETH_RESET_DEFAULT	1
 static void sh_eth_set_rate(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -386,7 +393,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.hw_swap	= 1,
 };
 #elif defined(CONFIG_CPU_SUBTYPE_SH7724)
-#define SH_ETH_RESET_DEFAULT	1
 
 static void sh_eth_set_rate(struct net_device *ndev)
 {
@@ -427,7 +433,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 };
 #elif defined(CONFIG_CPU_SUBTYPE_SH7757)
 #define SH_ETH_HAS_BOTH_MODULES	1
-static int sh_eth_check_reset(struct net_device *ndev);
 
 static void sh_eth_set_rate(struct net_device *ndev)
 {
@@ -493,42 +498,6 @@ static void sh_eth_chip_reset_giga(struct net_device *ndev)
 	}
 }
 
-static int sh_eth_is_gether(struct sh_eth_private *mdp);
-static int sh_eth_reset(struct net_device *ndev)
-{
-	struct sh_eth_private *mdp = netdev_priv(ndev);
-	int ret = 0;
-
-	if (sh_eth_is_gether(mdp)) {
-		sh_eth_write(ndev, EDSR_ENALL, EDSR);
-		sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER,
-				EDMR);
-
-		ret = sh_eth_check_reset(ndev);
-		if (ret)
-			goto out;
-
-		/* Table Init */
-		sh_eth_write(ndev, 0x0, TDLAR);
-		sh_eth_write(ndev, 0x0, TDFAR);
-		sh_eth_write(ndev, 0x0, TDFXR);
-		sh_eth_write(ndev, 0x0, TDFFR);
-		sh_eth_write(ndev, 0x0, RDLAR);
-		sh_eth_write(ndev, 0x0, RDFAR);
-		sh_eth_write(ndev, 0x0, RDFXR);
-		sh_eth_write(ndev, 0x0, RDFFR);
-	} else {
-		sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER,
-				EDMR);
-		mdelay(3);
-		sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER,
-				EDMR);
-	}
-
-out:
-	return ret;
-}
-
 static void sh_eth_set_rate_giga(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -589,8 +558,6 @@ static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp)
 }
 
 #elif defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763)
-static int sh_eth_check_reset(struct net_device *ndev);
-static void sh_eth_reset_hw_crc(struct net_device *ndev);
 
 static void sh_eth_chip_reset(struct net_device *ndev)
 {
@@ -653,45 +620,8 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 #endif
 };
 
-static int sh_eth_reset(struct net_device *ndev)
-{
-	int ret = 0;
-
-	sh_eth_write(ndev, EDSR_ENALL, EDSR);
-	sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR);
-
-	ret = sh_eth_check_reset(ndev);
-	if (ret)
-		goto out;
-
-	/* Table Init */
-	sh_eth_write(ndev, 0x0, TDLAR);
-	sh_eth_write(ndev, 0x0, TDFAR);
-	sh_eth_write(ndev, 0x0, TDFXR);
-	sh_eth_write(ndev, 0x0, TDFFR);
-	sh_eth_write(ndev, 0x0, RDLAR);
-	sh_eth_write(ndev, 0x0, RDFAR);
-	sh_eth_write(ndev, 0x0, RDFXR);
-	sh_eth_write(ndev, 0x0, RDFFR);
-
-	/* Reset HW CRC register */
-	sh_eth_reset_hw_crc(ndev);
-
-	/* Select MII mode */
-	if (sh_eth_my_cpu_data.select_mii)
-		sh_eth_select_mii(ndev);
-out:
-	return ret;
-}
-
-static void sh_eth_reset_hw_crc(struct net_device *ndev)
-{
-	if (sh_eth_my_cpu_data.hw_crc)
-		sh_eth_write(ndev, 0x0, CSMR);
-}
 
 #elif defined(CONFIG_ARCH_R8A7740)
-static int sh_eth_check_reset(struct net_device *ndev);
 
 static void sh_eth_chip_reset(struct net_device *ndev)
 {
@@ -704,31 +634,6 @@ static void sh_eth_chip_reset(struct net_device *ndev)
 	sh_eth_select_mii(ndev);
 }
 
-static int sh_eth_reset(struct net_device *ndev)
-{
-	int ret = 0;
-
-	sh_eth_write(ndev, EDSR_ENALL, EDSR);
-	sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR);
-
-	ret = sh_eth_check_reset(ndev);
-	if (ret)
-		goto out;
-
-	/* Table Init */
-	sh_eth_write(ndev, 0x0, TDLAR);
-	sh_eth_write(ndev, 0x0, TDFAR);
-	sh_eth_write(ndev, 0x0, TDFXR);
-	sh_eth_write(ndev, 0x0, TDFFR);
-	sh_eth_write(ndev, 0x0, RDLAR);
-	sh_eth_write(ndev, 0x0, RDFAR);
-	sh_eth_write(ndev, 0x0, RDFXR);
-	sh_eth_write(ndev, 0x0, RDFFR);
-
-out:
-	return ret;
-}
-
 static void sh_eth_set_rate(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -777,7 +682,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 };
 
 #elif defined(CONFIG_CPU_SUBTYPE_SH7619)
-#define SH_ETH_RESET_DEFAULT	1
 static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
 
@@ -787,7 +691,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.hw_swap	= 1,
 };
 #elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
-#define SH_ETH_RESET_DEFAULT	1
 static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
 	.tsu		= 1,
@@ -822,17 +725,6 @@ static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd)
 		cd->tx_error_check = DEFAULT_TX_ERROR_CHECK;
 }
 
-#if defined(SH_ETH_RESET_DEFAULT)
-/* Chip Reset */
-static int  sh_eth_reset(struct net_device *ndev)
-{
-	sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, EDMR);
-	mdelay(3);
-	sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, EDMR);
-
-	return 0;
-}
-#else
 static int sh_eth_check_reset(struct net_device *ndev)
 {
 	int ret = 0;
@@ -850,7 +742,49 @@ static int sh_eth_check_reset(struct net_device *ndev)
 	}
 	return ret;
 }
-#endif
+
+static int sh_eth_reset(struct net_device *ndev)
+{
+	struct sh_eth_private *mdp = netdev_priv(ndev);
+	int ret = 0;
+
+	if (sh_eth_is_gether(mdp)) {
+		sh_eth_write(ndev, EDSR_ENALL, EDSR);
+		sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER,
+			     EDMR);
+
+		ret = sh_eth_check_reset(ndev);
+		if (ret)
+			goto out;
+
+		/* Table Init */
+		sh_eth_write(ndev, 0x0, TDLAR);
+		sh_eth_write(ndev, 0x0, TDFAR);
+		sh_eth_write(ndev, 0x0, TDFXR);
+		sh_eth_write(ndev, 0x0, TDFFR);
+		sh_eth_write(ndev, 0x0, RDLAR);
+		sh_eth_write(ndev, 0x0, RDFAR);
+		sh_eth_write(ndev, 0x0, RDFXR);
+		sh_eth_write(ndev, 0x0, RDFFR);
+
+		/* Reset HW CRC register */
+		if (mdp->cd->hw_crc)
+			sh_eth_write(ndev, 0x0, CSMR);
+
+		/* Select MII mode */
+		if (mdp->cd->select_mii)
+			sh_eth_select_mii(ndev);
+	} else {
+		sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER,
+			     EDMR);
+		mdelay(3);
+		sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER,
+			     EDMR);
+	}
+
+out:
+	return ret;
+}
 
 #if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
 static void sh_eth_set_receive_align(struct sk_buff *skb)
@@ -926,14 +860,6 @@ static void read_mac_address(struct net_device *ndev, unsigned char *mac)
 	}
 }
 
-static int sh_eth_is_gether(struct sh_eth_private *mdp)
-{
-	if (mdp->reg_offset == sh_eth_offset_gigabit)
-		return 1;
-	else
-		return 0;
-}
-
 static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp)
 {
 	if (sh_eth_is_gether(mdp))
-- 
cgit v0.10.2


From 540ad1b888ad9564520c1c8c48ad675f76ffce62 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 6 Jun 2013 09:52:37 +0000
Subject: sh_eth: enclose PM code into #ifdef CONFIG_PM

Put '#ifdef CONFIG_PM' around sh_eth_runtime_nop() and 'sh_eth_dev_pm_ops'.
Add '#define SH_ETH_PM_OPS' to facilitate initialization of driver's 'pm' field
depending on whether CONFIG_PM is enabled.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
[Sergei: added the changelog, reworded the subject, changing the prefix.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index d190c1e..0699b1e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2673,6 +2673,7 @@ static int sh_eth_drv_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 static int sh_eth_runtime_nop(struct device *dev)
 {
 	/*
@@ -2686,17 +2687,21 @@ static int sh_eth_runtime_nop(struct device *dev)
 	return 0;
 }
 
-static struct dev_pm_ops sh_eth_dev_pm_ops = {
+static const struct dev_pm_ops sh_eth_dev_pm_ops = {
 	.runtime_suspend = sh_eth_runtime_nop,
 	.runtime_resume = sh_eth_runtime_nop,
 };
+#define SH_ETH_PM_OPS (&sh_eth_dev_pm_ops)
+#else
+#define SH_ETH_PM_OPS NULL
+#endif
 
 static struct platform_driver sh_eth_driver = {
 	.probe = sh_eth_drv_probe,
 	.remove = sh_eth_drv_remove,
 	.driver = {
 		   .name = CARDNAME,
-		   .pm = &sh_eth_dev_pm_ops,
+		   .pm = SH_ETH_PM_OPS,
 	},
 };
 
-- 
cgit v0.10.2


From 1b44791ab4ed27e6fa69f5dfa81b0fd48b1d050d Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Tue, 4 Jun 2013 21:57:11 +0000
Subject: net/macb: increase RX buffer size for GEM

Macb Ethernet controller requires a RX buffer of 128 bytes. It is
highly sub-optimal for Gigabit-capable GEM that is able to use
a bigger DMA buffer. Change this constant and associated macros
with data stored in the private structure.
RX DMA buffer size has to be multiple of 64 bytes as indicated in
DMA Configuration Register specification.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index 4465e27..aab7bb2 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -32,7 +32,9 @@
 
 #include "macb.h"
 
-#define RX_BUFFER_SIZE		128
+#define MACB_RX_BUFFER_SIZE	128
+#define GEM_RX_BUFFER_SIZE	2048
+#define RX_BUFFER_MULTIPLE	64  /* bytes */
 #define RX_RING_SIZE		512 /* must be power of 2 */
 #define RX_RING_BYTES		(sizeof(struct macb_dma_desc) * RX_RING_SIZE)
 
@@ -92,7 +94,7 @@ static struct macb_dma_desc *macb_rx_desc(struct macb *bp, unsigned int index)
 
 static void *macb_rx_buffer(struct macb *bp, unsigned int index)
 {
-	return bp->rx_buffers + RX_BUFFER_SIZE * macb_rx_ring_wrap(index);
+	return bp->rx_buffers + bp->rx_buffer_size * macb_rx_ring_wrap(index);
 }
 
 void macb_set_hwaddr(struct macb *bp)
@@ -575,7 +577,7 @@ static int macb_rx_frame(struct macb *bp, unsigned int first_frag,
 	skb_put(skb, len);
 
 	for (frag = first_frag; ; frag++) {
-		unsigned int frag_len = RX_BUFFER_SIZE;
+		unsigned int frag_len = bp->rx_buffer_size;
 
 		if (offset + frag_len > len) {
 			BUG_ON(frag != last_frag);
@@ -583,7 +585,7 @@ static int macb_rx_frame(struct macb *bp, unsigned int first_frag,
 		}
 		skb_copy_to_linear_data_offset(skb, offset,
 				macb_rx_buffer(bp, frag), frag_len);
-		offset += RX_BUFFER_SIZE;
+		offset += bp->rx_buffer_size;
 		desc = macb_rx_desc(bp, frag);
 		desc->addr &= ~MACB_BIT(RX_USED);
 
@@ -870,6 +872,30 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	return NETDEV_TX_OK;
 }
 
+static void macb_init_rx_buffer_size(struct macb *bp)
+{
+	if (!macb_is_gem(bp)) {
+		bp->rx_buffer_size = MACB_RX_BUFFER_SIZE;
+	} else {
+		bp->rx_buffer_size = GEM_RX_BUFFER_SIZE;
+
+		if (bp->rx_buffer_size > PAGE_SIZE) {
+			netdev_warn(bp->dev,
+				    "RX buffer cannot be bigger than PAGE_SIZE, shrinking\n");
+			bp->rx_buffer_size = PAGE_SIZE;
+		}
+		if (bp->rx_buffer_size % RX_BUFFER_MULTIPLE) {
+			netdev_warn(bp->dev,
+				    "RX buffer must be multiple of %d bytes, shrinking\n",
+				    RX_BUFFER_MULTIPLE);
+			bp->rx_buffer_size =
+				rounddown(bp->rx_buffer_size, RX_BUFFER_MULTIPLE);
+		}
+		bp->rx_buffer_size = max(RX_BUFFER_MULTIPLE, GEM_RX_BUFFER_SIZE);
+	}
+}
+
+
 static void macb_free_consistent(struct macb *bp)
 {
 	if (bp->tx_skb) {
@@ -888,7 +914,7 @@ static void macb_free_consistent(struct macb *bp)
 	}
 	if (bp->rx_buffers) {
 		dma_free_coherent(&bp->pdev->dev,
-				  RX_RING_SIZE * RX_BUFFER_SIZE,
+				  RX_RING_SIZE * bp->rx_buffer_size,
 				  bp->rx_buffers, bp->rx_buffers_dma);
 		bp->rx_buffers = NULL;
 	}
@@ -921,7 +947,7 @@ static int macb_alloc_consistent(struct macb *bp)
 		   "Allocated TX ring of %d bytes at %08lx (mapped %p)\n",
 		   size, (unsigned long)bp->tx_ring_dma, bp->tx_ring);
 
-	size = RX_RING_SIZE * RX_BUFFER_SIZE;
+	size = RX_RING_SIZE * bp->rx_buffer_size;
 	bp->rx_buffers = dma_alloc_coherent(&bp->pdev->dev, size,
 					    &bp->rx_buffers_dma, GFP_KERNEL);
 	if (!bp->rx_buffers)
@@ -946,7 +972,7 @@ static void macb_init_rings(struct macb *bp)
 	for (i = 0; i < RX_RING_SIZE; i++) {
 		bp->rx_ring[i].addr = addr;
 		bp->rx_ring[i].ctrl = 0;
-		addr += RX_BUFFER_SIZE;
+		addr += bp->rx_buffer_size;
 	}
 	bp->rx_ring[RX_RING_SIZE - 1].addr |= MACB_BIT(RX_WRAP);
 
@@ -1056,7 +1082,7 @@ static void macb_configure_dma(struct macb *bp)
 
 	if (macb_is_gem(bp)) {
 		dmacfg = gem_readl(bp, DMACFG) & ~GEM_BF(RXBS, -1L);
-		dmacfg |= GEM_BF(RXBS, RX_BUFFER_SIZE / 64);
+		dmacfg |= GEM_BF(RXBS, bp->rx_buffer_size / RX_BUFFER_MULTIPLE);
 		dmacfg |= GEM_BF(FBLDO, 16);
 		dmacfg |= GEM_BIT(TXPBMS) | GEM_BF(RXBMS, -1L);
 		dmacfg &= ~GEM_BIT(ENDIA);
@@ -1244,6 +1270,9 @@ static int macb_open(struct net_device *dev)
 	if (!bp->phy_dev)
 		return -EAGAIN;
 
+	/* RX buffers initialization */
+	macb_init_rx_buffer_size(bp);
+
 	err = macb_alloc_consistent(bp);
 	if (err) {
 		netdev_err(dev, "Unable to allocate DMA memory (error %d)\n",
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index 548c0ec..9b5e19f 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -551,6 +551,7 @@ struct macb {
 	unsigned int		rx_tail;
 	struct macb_dma_desc	*rx_ring;
 	void			*rx_buffers;
+	size_t			rx_buffer_size;
 
 	unsigned int		tx_head, tx_tail;
 	struct macb_dma_desc	*tx_ring;
-- 
cgit v0.10.2


From 4df95131ea803bcb94f472d465c73ed57015c470 Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Tue, 4 Jun 2013 21:57:12 +0000
Subject: net/macb: change RX path for GEM

GEM is able to adapt its DMA buffer size, so change
the RX path to take advantage of this possibility and
remove all kind of memcpy in this path.
This modification introduces function pointers for managing
differences between MACB and GEM adapter type.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index aab7bb2..f7e21f2 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -33,7 +33,6 @@
 #include "macb.h"
 
 #define MACB_RX_BUFFER_SIZE	128
-#define GEM_RX_BUFFER_SIZE	2048
 #define RX_BUFFER_MULTIPLE	64  /* bytes */
 #define RX_RING_SIZE		512 /* must be power of 2 */
 #define RX_RING_BYTES		(sizeof(struct macb_dma_desc) * RX_RING_SIZE)
@@ -530,6 +529,155 @@ static void macb_tx_interrupt(struct macb *bp)
 		netif_wake_queue(bp->dev);
 }
 
+static void gem_rx_refill(struct macb *bp)
+{
+	unsigned int		entry;
+	struct sk_buff		*skb;
+	struct macb_dma_desc	*desc;
+	dma_addr_t		paddr;
+
+	while (CIRC_SPACE(bp->rx_prepared_head, bp->rx_tail, RX_RING_SIZE) > 0) {
+		u32 addr, ctrl;
+
+		entry = macb_rx_ring_wrap(bp->rx_prepared_head);
+		desc = &bp->rx_ring[entry];
+
+		/* Make hw descriptor updates visible to CPU */
+		rmb();
+
+		addr = desc->addr;
+		ctrl = desc->ctrl;
+		bp->rx_prepared_head++;
+
+		if ((addr & MACB_BIT(RX_USED)))
+			continue;
+
+		if (bp->rx_skbuff[entry] == NULL) {
+			/* allocate sk_buff for this free entry in ring */
+			skb = netdev_alloc_skb(bp->dev, bp->rx_buffer_size);
+			if (unlikely(skb == NULL)) {
+				netdev_err(bp->dev,
+					   "Unable to allocate sk_buff\n");
+				break;
+			}
+			bp->rx_skbuff[entry] = skb;
+
+			/* now fill corresponding descriptor entry */
+			paddr = dma_map_single(&bp->pdev->dev, skb->data,
+					       bp->rx_buffer_size, DMA_FROM_DEVICE);
+
+			if (entry == RX_RING_SIZE - 1)
+				paddr |= MACB_BIT(RX_WRAP);
+			bp->rx_ring[entry].addr = paddr;
+			bp->rx_ring[entry].ctrl = 0;
+
+			/* properly align Ethernet header */
+			skb_reserve(skb, NET_IP_ALIGN);
+		}
+	}
+
+	/* Make descriptor updates visible to hardware */
+	wmb();
+
+	netdev_vdbg(bp->dev, "rx ring: prepared head %d, tail %d\n",
+		   bp->rx_prepared_head, bp->rx_tail);
+}
+
+/* Mark DMA descriptors from begin up to and not including end as unused */
+static void discard_partial_frame(struct macb *bp, unsigned int begin,
+				  unsigned int end)
+{
+	unsigned int frag;
+
+	for (frag = begin; frag != end; frag++) {
+		struct macb_dma_desc *desc = macb_rx_desc(bp, frag);
+		desc->addr &= ~MACB_BIT(RX_USED);
+	}
+
+	/* Make descriptor updates visible to hardware */
+	wmb();
+
+	/*
+	 * When this happens, the hardware stats registers for
+	 * whatever caused this is updated, so we don't have to record
+	 * anything.
+	 */
+}
+
+static int gem_rx(struct macb *bp, int budget)
+{
+	unsigned int		len;
+	unsigned int		entry;
+	struct sk_buff		*skb;
+	struct macb_dma_desc	*desc;
+	int			count = 0;
+
+	while (count < budget) {
+		u32 addr, ctrl;
+
+		entry = macb_rx_ring_wrap(bp->rx_tail);
+		desc = &bp->rx_ring[entry];
+
+		/* Make hw descriptor updates visible to CPU */
+		rmb();
+
+		addr = desc->addr;
+		ctrl = desc->ctrl;
+
+		if (!(addr & MACB_BIT(RX_USED)))
+			break;
+
+		desc->addr &= ~MACB_BIT(RX_USED);
+		bp->rx_tail++;
+		count++;
+
+		if (!(ctrl & MACB_BIT(RX_SOF) && ctrl & MACB_BIT(RX_EOF))) {
+			netdev_err(bp->dev,
+				   "not whole frame pointed by descriptor\n");
+			bp->stats.rx_dropped++;
+			break;
+		}
+		skb = bp->rx_skbuff[entry];
+		if (unlikely(!skb)) {
+			netdev_err(bp->dev,
+				   "inconsistent Rx descriptor chain\n");
+			bp->stats.rx_dropped++;
+			break;
+		}
+		/* now everything is ready for receiving packet */
+		bp->rx_skbuff[entry] = NULL;
+		len = MACB_BFEXT(RX_FRMLEN, ctrl);
+
+		netdev_vdbg(bp->dev, "gem_rx %u (len %u)\n", entry, len);
+
+		skb_put(skb, len);
+		addr = MACB_BF(RX_WADDR, MACB_BFEXT(RX_WADDR, addr));
+		dma_unmap_single(&bp->pdev->dev, addr,
+				 len, DMA_FROM_DEVICE);
+
+		skb->protocol = eth_type_trans(skb, bp->dev);
+		skb_checksum_none_assert(skb);
+
+		bp->stats.rx_packets++;
+		bp->stats.rx_bytes += skb->len;
+
+#if defined(DEBUG) && defined(VERBOSE_DEBUG)
+		netdev_vdbg(bp->dev, "received skb of length %u, csum: %08x\n",
+			    skb->len, skb->csum);
+		print_hex_dump(KERN_DEBUG, " mac: ", DUMP_PREFIX_ADDRESS, 16, 1,
+			       skb->mac_header, 16, true);
+		print_hex_dump(KERN_DEBUG, "data: ", DUMP_PREFIX_ADDRESS, 16, 1,
+			       skb->data, 32, true);
+#endif
+
+		netif_receive_skb(skb);
+	}
+
+	gem_rx_refill(bp);
+
+	return count;
+}
+
 static int macb_rx_frame(struct macb *bp, unsigned int first_frag,
 			 unsigned int last_frag)
 {
@@ -608,27 +756,6 @@ static int macb_rx_frame(struct macb *bp, unsigned int first_frag,
 	return 0;
 }
 
-/* Mark DMA descriptors from begin up to and not including end as unused */
-static void discard_partial_frame(struct macb *bp, unsigned int begin,
-				  unsigned int end)
-{
-	unsigned int frag;
-
-	for (frag = begin; frag != end; frag++) {
-		struct macb_dma_desc *desc = macb_rx_desc(bp, frag);
-		desc->addr &= ~MACB_BIT(RX_USED);
-	}
-
-	/* Make descriptor updates visible to hardware */
-	wmb();
-
-	/*
-	 * When this happens, the hardware stats registers for
-	 * whatever caused this is updated, so we don't have to record
-	 * anything.
-	 */
-}
-
 static int macb_rx(struct macb *bp, int budget)
 {
 	int received = 0;
@@ -689,7 +816,7 @@ static int macb_poll(struct napi_struct *napi, int budget)
 	netdev_vdbg(bp->dev, "poll: status = %08lx, budget = %d\n",
 		   (unsigned long)status, budget);
 
-	work_done = macb_rx(bp, budget);
+	work_done = bp->macbgem_ops.mog_rx(bp, budget);
 	if (work_done < budget) {
 		napi_complete(napi);
 
@@ -872,29 +999,63 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	return NETDEV_TX_OK;
 }
 
-static void macb_init_rx_buffer_size(struct macb *bp)
+static void macb_init_rx_buffer_size(struct macb *bp, size_t size)
 {
 	if (!macb_is_gem(bp)) {
 		bp->rx_buffer_size = MACB_RX_BUFFER_SIZE;
 	} else {
-		bp->rx_buffer_size = GEM_RX_BUFFER_SIZE;
+		bp->rx_buffer_size = size;
 
-		if (bp->rx_buffer_size > PAGE_SIZE) {
-			netdev_warn(bp->dev,
-				    "RX buffer cannot be bigger than PAGE_SIZE, shrinking\n");
-			bp->rx_buffer_size = PAGE_SIZE;
-		}
 		if (bp->rx_buffer_size % RX_BUFFER_MULTIPLE) {
-			netdev_warn(bp->dev,
-				    "RX buffer must be multiple of %d bytes, shrinking\n",
+			netdev_dbg(bp->dev,
+				    "RX buffer must be multiple of %d bytes, expanding\n",
 				    RX_BUFFER_MULTIPLE);
 			bp->rx_buffer_size =
-				rounddown(bp->rx_buffer_size, RX_BUFFER_MULTIPLE);
+				roundup(bp->rx_buffer_size, RX_BUFFER_MULTIPLE);
 		}
-		bp->rx_buffer_size = max(RX_BUFFER_MULTIPLE, GEM_RX_BUFFER_SIZE);
 	}
+
+	netdev_dbg(bp->dev, "mtu [%u] rx_buffer_size [%Zu]\n",
+		   bp->dev->mtu, bp->rx_buffer_size);
 }
 
+static void gem_free_rx_buffers(struct macb *bp)
+{
+	struct sk_buff		*skb;
+	struct macb_dma_desc	*desc;
+	dma_addr_t		addr;
+	int i;
+
+	if (!bp->rx_skbuff)
+		return;
+
+	for (i = 0; i < RX_RING_SIZE; i++) {
+		skb = bp->rx_skbuff[i];
+
+		if (skb == NULL)
+			continue;
+
+		desc = &bp->rx_ring[i];
+		addr = MACB_BF(RX_WADDR, MACB_BFEXT(RX_WADDR, desc->addr));
+		dma_unmap_single(&bp->pdev->dev, addr, skb->len,
+				 DMA_FROM_DEVICE);
+		dev_kfree_skb_any(skb);
+		skb = NULL;
+	}
+
+	kfree(bp->rx_skbuff);
+	bp->rx_skbuff = NULL;
+}
+
+static void macb_free_rx_buffers(struct macb *bp)
+{
+	if (bp->rx_buffers) {
+		dma_free_coherent(&bp->pdev->dev,
+				  RX_RING_SIZE * bp->rx_buffer_size,
+				  bp->rx_buffers, bp->rx_buffers_dma);
+		bp->rx_buffers = NULL;
+	}
+}
 
 static void macb_free_consistent(struct macb *bp)
 {
@@ -902,6 +1063,7 @@ static void macb_free_consistent(struct macb *bp)
 		kfree(bp->tx_skb);
 		bp->tx_skb = NULL;
 	}
+	bp->macbgem_ops.mog_free_rx_buffers(bp);
 	if (bp->rx_ring) {
 		dma_free_coherent(&bp->pdev->dev, RX_RING_BYTES,
 				  bp->rx_ring, bp->rx_ring_dma);
@@ -912,12 +1074,37 @@ static void macb_free_consistent(struct macb *bp)
 				  bp->tx_ring, bp->tx_ring_dma);
 		bp->tx_ring = NULL;
 	}
-	if (bp->rx_buffers) {
-		dma_free_coherent(&bp->pdev->dev,
-				  RX_RING_SIZE * bp->rx_buffer_size,
-				  bp->rx_buffers, bp->rx_buffers_dma);
-		bp->rx_buffers = NULL;
-	}
+}
+
+static int gem_alloc_rx_buffers(struct macb *bp)
+{
+	int size;
+
+	size = RX_RING_SIZE * sizeof(struct sk_buff *);
+	bp->rx_skbuff = kzalloc(size, GFP_KERNEL);
+	if (!bp->rx_skbuff)
+		return -ENOMEM;
+	else
+		netdev_dbg(bp->dev,
+			   "Allocated %d RX struct sk_buff entries at %p\n",
+			   RX_RING_SIZE, bp->rx_skbuff);
+	return 0;
+}
+
+static int macb_alloc_rx_buffers(struct macb *bp)
+{
+	int size;
+
+	size = RX_RING_SIZE * bp->rx_buffer_size;
+	bp->rx_buffers = dma_alloc_coherent(&bp->pdev->dev, size,
+					    &bp->rx_buffers_dma, GFP_KERNEL);
+	if (!bp->rx_buffers)
+		return -ENOMEM;
+	else
+		netdev_dbg(bp->dev,
+			   "Allocated RX buffers of %d bytes at %08lx (mapped %p)\n",
+			   size, (unsigned long)bp->rx_buffers_dma, bp->rx_buffers);
+	return 0;
 }
 
 static int macb_alloc_consistent(struct macb *bp)
@@ -947,14 +1134,8 @@ static int macb_alloc_consistent(struct macb *bp)
 		   "Allocated TX ring of %d bytes at %08lx (mapped %p)\n",
 		   size, (unsigned long)bp->tx_ring_dma, bp->tx_ring);
 
-	size = RX_RING_SIZE * bp->rx_buffer_size;
-	bp->rx_buffers = dma_alloc_coherent(&bp->pdev->dev, size,
-					    &bp->rx_buffers_dma, GFP_KERNEL);
-	if (!bp->rx_buffers)
+	if (bp->macbgem_ops.mog_alloc_rx_buffers(bp))
 		goto out_err;
-	netdev_dbg(bp->dev,
-		   "Allocated RX buffers of %d bytes at %08lx (mapped %p)\n",
-		   size, (unsigned long)bp->rx_buffers_dma, bp->rx_buffers);
 
 	return 0;
 
@@ -963,6 +1144,21 @@ out_err:
 	return -ENOMEM;
 }
 
+static void gem_init_rings(struct macb *bp)
+{
+	int i;
+
+	for (i = 0; i < TX_RING_SIZE; i++) {
+		bp->tx_ring[i].addr = 0;
+		bp->tx_ring[i].ctrl = MACB_BIT(TX_USED);
+	}
+	bp->tx_ring[TX_RING_SIZE - 1].ctrl |= MACB_BIT(TX_WRAP);
+
+	bp->rx_tail = bp->rx_prepared_head = bp->tx_head = bp->tx_tail = 0;
+
+	gem_rx_refill(bp);
+}
+
 static void macb_init_rings(struct macb *bp)
 {
 	int i;
@@ -1259,6 +1455,7 @@ EXPORT_SYMBOL_GPL(macb_set_rx_mode);
 static int macb_open(struct net_device *dev)
 {
 	struct macb *bp = netdev_priv(dev);
+	size_t bufsz = dev->mtu + ETH_HLEN + ETH_FCS_LEN + NET_IP_ALIGN;
 	int err;
 
 	netdev_dbg(bp->dev, "open\n");
@@ -1271,7 +1468,7 @@ static int macb_open(struct net_device *dev)
 		return -EAGAIN;
 
 	/* RX buffers initialization */
-	macb_init_rx_buffer_size(bp);
+	macb_init_rx_buffer_size(bp, bufsz);
 
 	err = macb_alloc_consistent(bp);
 	if (err) {
@@ -1282,7 +1479,7 @@ static int macb_open(struct net_device *dev)
 
 	napi_enable(&bp->napi);
 
-	macb_init_rings(bp);
+	bp->macbgem_ops.mog_init_rings(bp);
 	macb_init_hw(bp);
 
 	/* schedule a link state check */
@@ -1601,6 +1798,19 @@ static int __init macb_probe(struct platform_device *pdev)
 
 	dev->base_addr = regs->start;
 
+	/* setup appropriated routines according to adapter type */
+	if (macb_is_gem(bp)) {
+		bp->macbgem_ops.mog_alloc_rx_buffers = gem_alloc_rx_buffers;
+		bp->macbgem_ops.mog_free_rx_buffers = gem_free_rx_buffers;
+		bp->macbgem_ops.mog_init_rings = gem_init_rings;
+		bp->macbgem_ops.mog_rx = gem_rx;
+	} else {
+		bp->macbgem_ops.mog_alloc_rx_buffers = macb_alloc_rx_buffers;
+		bp->macbgem_ops.mog_free_rx_buffers = macb_free_rx_buffers;
+		bp->macbgem_ops.mog_init_rings = macb_init_rings;
+		bp->macbgem_ops.mog_rx = macb_rx;
+	}
+
 	/* Set MII management clock divider */
 	config = macb_mdc_clk_div(bp);
 	config |= macb_dbw(bp);
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index 9b5e19f..f407615 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -545,11 +545,22 @@ struct gem_stats {
 	u32	rx_udp_checksum_errors;
 };
 
+struct macb;
+
+struct macb_or_gem_ops {
+	int	(*mog_alloc_rx_buffers)(struct macb *bp);
+	void	(*mog_free_rx_buffers)(struct macb *bp);
+	void	(*mog_init_rings)(struct macb *bp);
+	int	(*mog_rx)(struct macb *bp, int budget);
+};
+
 struct macb {
 	void __iomem		*regs;
 
 	unsigned int		rx_tail;
+	unsigned int		rx_prepared_head;
 	struct macb_dma_desc	*rx_ring;
+	struct sk_buff		**rx_skbuff;
 	void			*rx_buffers;
 	size_t			rx_buffer_size;
 
@@ -574,6 +585,8 @@ struct macb {
 	dma_addr_t		tx_ring_dma;
 	dma_addr_t		rx_buffers_dma;
 
+	struct macb_or_gem_ops	macbgem_ops;
+
 	struct mii_bus		*mii_bus;
 	struct phy_device	*phy_dev;
 	unsigned int 		link;
-- 
cgit v0.10.2


From d70a3f887a38cb0acc7233a1d05f15c2b6e0be2b Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 6 Jun 2013 14:08:13 +0000
Subject: doc: packet: simplify tpacket example code

This patch simplifies the tpacket_v3 example code a bit by getting rid
of unecessary macro wrappers, removing some debugging code so that it is
more to the point, and also adds a header comment. Now this example code
is the very minimum one needs to start from when dealing with tpacket_v3
and ~100 lines smaller than before.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt
index 23dd80e..8572796 100644
--- a/Documentation/networking/packet_mmap.txt
+++ b/Documentation/networking/packet_mmap.txt
@@ -704,6 +704,12 @@ So it seems to be a good candidate to be used with packet fanout.
 Minimal example code by Daniel Borkmann based on Chetan Loke's lolpcap (compile
 it with gcc -Wall -O2 blob.c, and try things like "./a.out eth0", etc.):
 
+/* Written from scratch, but kernel-to-user space API usage
+ * dissected from lolpcap:
+ *  Copyright 2011, Chetan Loke <loke.chetan@gmail.com>
+ *  License: GPL, version 2.0
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
@@ -722,27 +728,6 @@ it with gcc -Wall -O2 blob.c, and try things like "./a.out eth0", etc.):
 #include <linux/if_ether.h>
 #include <linux/ip.h>
 
-#define BLOCK_SIZE		(1 << 22)
-#define FRAME_SIZE		2048
-
-#define NUM_BLOCKS		64
-#define NUM_FRAMES		((BLOCK_SIZE * NUM_BLOCKS) / FRAME_SIZE)
-
-#define BLOCK_RETIRE_TOV_IN_MS	64
-#define BLOCK_PRIV_AREA_SZ	13
-
-#define ALIGN_8(x)		(((x) + 8 - 1) & ~(8 - 1))
-
-#define BLOCK_STATUS(x)		((x)->h1.block_status)
-#define BLOCK_NUM_PKTS(x)	((x)->h1.num_pkts)
-#define BLOCK_O2FP(x)		((x)->h1.offset_to_first_pkt)
-#define BLOCK_LEN(x)		((x)->h1.blk_len)
-#define BLOCK_SNUM(x)		((x)->h1.seq_num)
-#define BLOCK_O2PRIV(x)		((x)->offset_to_priv)
-#define BLOCK_PRIV(x)		((void *) ((uint8_t *) (x) + BLOCK_O2PRIV(x)))
-#define BLOCK_HDR_LEN		(ALIGN_8(sizeof(struct block_desc)))
-#define BLOCK_PLUS_PRIV(sz_pri)	(BLOCK_HDR_LEN + ALIGN_8((sz_pri)))
-
 #ifndef likely
 # define likely(x)		__builtin_expect(!!(x), 1)
 #endif
@@ -765,7 +750,7 @@ struct ring {
 static unsigned long packets_total = 0, bytes_total = 0;
 static sig_atomic_t sigint = 0;
 
-void sighandler(int num)
+static void sighandler(int num)
 {
 	sigint = 1;
 }
@@ -774,6 +759,8 @@ static int setup_socket(struct ring *ring, char *netdev)
 {
 	int err, i, fd, v = TPACKET_V3;
 	struct sockaddr_ll ll;
+	unsigned int blocksiz = 1 << 22, framesiz = 1 << 11;
+	unsigned int blocknum = 64;
 
 	fd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
 	if (fd < 0) {
@@ -788,13 +775,12 @@ static int setup_socket(struct ring *ring, char *netdev)
 	}
 
 	memset(&ring->req, 0, sizeof(ring->req));
-	ring->req.tp_block_size = BLOCK_SIZE;
-	ring->req.tp_frame_size = FRAME_SIZE;
-	ring->req.tp_block_nr = NUM_BLOCKS;
-	ring->req.tp_frame_nr = NUM_FRAMES;
-	ring->req.tp_retire_blk_tov = BLOCK_RETIRE_TOV_IN_MS;
-	ring->req.tp_sizeof_priv = BLOCK_PRIV_AREA_SZ;
-	ring->req.tp_feature_req_word |= TP_FT_REQ_FILL_RXHASH;
+	ring->req.tp_block_size = blocksiz;
+	ring->req.tp_frame_size = framesiz;
+	ring->req.tp_block_nr = blocknum;
+	ring->req.tp_frame_nr = (blocksiz * blocknum) / framesiz;
+	ring->req.tp_retire_blk_tov = 60;
+	ring->req.tp_feature_req_word = TP_FT_REQ_FILL_RXHASH;
 
 	err = setsockopt(fd, SOL_PACKET, PACKET_RX_RING, &ring->req,
 			 sizeof(ring->req));
@@ -804,8 +790,7 @@ static int setup_socket(struct ring *ring, char *netdev)
 	}
 
 	ring->map = mmap(NULL, ring->req.tp_block_size * ring->req.tp_block_nr,
-			 PROT_READ | PROT_WRITE, MAP_SHARED | MAP_LOCKED,
-			 fd, 0);
+			 PROT_READ | PROT_WRITE, MAP_SHARED | MAP_LOCKED, fd, 0);
 	if (ring->map == MAP_FAILED) {
 		perror("mmap");
 		exit(1);
@@ -835,58 +820,6 @@ static int setup_socket(struct ring *ring, char *netdev)
 	return fd;
 }
 
-#ifdef __checked
-static uint64_t prev_block_seq_num = 0;
-
-void assert_block_seq_num(struct block_desc *pbd)
-{
-	if (unlikely(prev_block_seq_num + 1 != BLOCK_SNUM(pbd))) {
-		printf("prev_block_seq_num:%"PRIu64", expected seq:%"PRIu64" != "
-		       "actual seq:%"PRIu64"\n", prev_block_seq_num,
-		       prev_block_seq_num + 1, (uint64_t) BLOCK_SNUM(pbd));
-		exit(1);
-	}
-
-	prev_block_seq_num = BLOCK_SNUM(pbd);
-}
-
-static void assert_block_len(struct block_desc *pbd, uint32_t bytes, int block_num)
-{
-	if (BLOCK_NUM_PKTS(pbd)) {
-		if (unlikely(bytes != BLOCK_LEN(pbd))) {
-			printf("block:%u with %upackets, expected len:%u != actual len:%u\n",
-			       block_num, BLOCK_NUM_PKTS(pbd), bytes, BLOCK_LEN(pbd));
-			exit(1);
-		}
-	} else {
-		if (unlikely(BLOCK_LEN(pbd) != BLOCK_PLUS_PRIV(BLOCK_PRIV_AREA_SZ))) {
-			printf("block:%u, expected len:%lu != actual len:%u\n",
-			       block_num, BLOCK_HDR_LEN, BLOCK_LEN(pbd));
-			exit(1);
-		}
-	}
-}
-
-static void assert_block_header(struct block_desc *pbd, const int block_num)
-{
-	uint32_t block_status = BLOCK_STATUS(pbd);
-
-	if (unlikely((block_status & TP_STATUS_USER) == 0)) {
-		printf("block:%u, not in TP_STATUS_USER\n", block_num);
-		exit(1);
-	}
-
-	assert_block_seq_num(pbd);
-}
-#else
-static inline void assert_block_header(struct block_desc *pbd, const int block_num)
-{
-}
-static void assert_block_len(struct block_desc *pbd, uint32_t bytes, int block_num)
-{
-}
-#endif
-
 static void display(struct tpacket3_hdr *ppd)
 {
 	struct ethhdr *eth = (struct ethhdr *) ((uint8_t *) ppd + ppd->tp_mac);
@@ -916,37 +849,27 @@ static void display(struct tpacket3_hdr *ppd)
 
 static void walk_block(struct block_desc *pbd, const int block_num)
 {
-	int num_pkts = BLOCK_NUM_PKTS(pbd), i;
+	int num_pkts = pbd->h1.num_pkts, i;
 	unsigned long bytes = 0;
-	unsigned long bytes_with_padding = BLOCK_PLUS_PRIV(BLOCK_PRIV_AREA_SZ);
 	struct tpacket3_hdr *ppd;
 
-	assert_block_header(pbd, block_num);
-
-	ppd = (struct tpacket3_hdr *) ((uint8_t *) pbd + BLOCK_O2FP(pbd));
+	ppd = (struct tpacket3_hdr *) ((uint8_t *) pbd +
+				       pbd->h1.offset_to_first_pkt);
 	for (i = 0; i < num_pkts; ++i) {
 		bytes += ppd->tp_snaplen;
-		if (ppd->tp_next_offset)
-			bytes_with_padding += ppd->tp_next_offset;
-		else
-			bytes_with_padding += ALIGN_8(ppd->tp_snaplen + ppd->tp_mac);
-
 		display(ppd);
 
-		ppd = (struct tpacket3_hdr *) ((uint8_t *) ppd + ppd->tp_next_offset);
-		__sync_synchronize();
+		ppd = (struct tpacket3_hdr *) ((uint8_t *) ppd +
+					       ppd->tp_next_offset);
 	}
 
-	assert_block_len(pbd, bytes_with_padding, block_num);
-
 	packets_total += num_pkts;
 	bytes_total += bytes;
 }
 
-void flush_block(struct block_desc *pbd)
+static void flush_block(struct block_desc *pbd)
 {
-	BLOCK_STATUS(pbd) = TP_STATUS_KERNEL;
-	__sync_synchronize();
+	pbd->h1.block_status = TP_STATUS_KERNEL;
 }
 
 static void teardown_socket(struct ring *ring, int fd)
@@ -962,7 +885,7 @@ int main(int argc, char **argp)
 	socklen_t len;
 	struct ring ring;
 	struct pollfd pfd;
-	unsigned int block_num = 0;
+	unsigned int block_num = 0, blocks = 64;
 	struct block_desc *pbd;
 	struct tpacket_stats_v3 stats;
 
@@ -984,15 +907,15 @@ int main(int argc, char **argp)
 
 	while (likely(!sigint)) {
 		pbd = (struct block_desc *) ring.rd[block_num].iov_base;
-retry_block:
-		if ((BLOCK_STATUS(pbd) & TP_STATUS_USER) == 0) {
+
+		if ((pbd->h1.block_status & TP_STATUS_USER) == 0) {
 			poll(&pfd, 1, -1);
-			goto retry_block;
+			continue;
 		}
 
 		walk_block(pbd, block_num);
 		flush_block(pbd);
-		block_num = (block_num + 1) % NUM_BLOCKS;
+		block_num = (block_num + 1) % blocks;
 	}
 
 	len = sizeof(stats);
-- 
cgit v0.10.2


From 350e7805706e11fef0bda2ab4b5cd5a0881480b9 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 6 Jun 2013 14:08:31 +0000
Subject: net: vlan: minor: remove unused HAVE_VLAN_PUT_TAG

Remove the definition of HAVE_VLAN_PUT_TAG since it's not
used or exported anywhere.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 52bd03b..7a9c8cf 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -243,8 +243,6 @@ static inline struct sk_buff *__vlan_hwaccel_put_tag(struct sk_buff *skb,
 	return skb;
 }
 
-#define HAVE_VLAN_PUT_TAG
-
 /**
  * vlan_put_tag - inserts VLAN tag according to device features
  * @skb: skbuff to tag
-- 
cgit v0.10.2


From 5ee98591577aa63dbb9e78a0d142abc86b9063d0 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 7 Jun 2013 05:11:45 +0000
Subject: net: minor: tcp: use tcp_skb_mss helper in tcp_tso_segment

We have the minimal inline helper tcp_skb_mss to access
skb_shinfo(skb)->gso_size, so also use it here to get mss.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index b5d4ad9..6a1cf95 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2905,7 +2905,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 	oldlen = (u16)~skb->len;
 	__skb_pull(skb, thlen);
 
-	mss = skb_shinfo(skb)->gso_size;
+	mss = tcp_skb_mss(skb);
 	if (unlikely(skb->len <= mss))
 		goto out;
 
@@ -3071,7 +3071,7 @@ found:
 		flush |= *(u32 *)((u8 *)th + i) ^
 			 *(u32 *)((u8 *)th2 + i);
 
-	mss = skb_shinfo(p)->gso_size;
+	mss = tcp_skb_mss(p);
 
 	flush |= (len - 1) >= mss;
 	flush |= (ntohl(th2->seq) + skb_gro_len(p)) ^ ntohl(th->seq);
-- 
cgit v0.10.2


From 28850dc7c71da9d0c0e39246e9ff6913f41f8d0a Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 7 Jun 2013 05:11:46 +0000
Subject: net: tcp: move GRO/GSO functions to tcp_offload

Would be good to make things explicit and move those functions to
a new file called tcp_offload.c, thus make this similar to tcpv6_offload.c.
While moving all related functions into tcp_offload.c, we can also
make some of them static, since they are only used there. Also, add
an explicit registration function.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index bf1cc3d..0d637e9 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1541,15 +1541,14 @@ extern struct request_sock_ops tcp6_request_sock_ops;
 
 extern void tcp_v4_destroy_sock(struct sock *sk);
 
-extern int tcp_v4_gso_send_check(struct sk_buff *skb);
 extern struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 				       netdev_features_t features);
 extern struct sk_buff **tcp_gro_receive(struct sk_buff **head,
 					struct sk_buff *skb);
-extern struct sk_buff **tcp4_gro_receive(struct sk_buff **head,
-					 struct sk_buff *skb);
 extern int tcp_gro_complete(struct sk_buff *skb);
-extern int tcp4_gro_complete(struct sk_buff *skb);
+
+extern void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr,
+				__be32 daddr);
 
 #ifdef CONFIG_PROC_FS
 extern int tcp4_proc_init(void);
@@ -1584,6 +1583,8 @@ struct tcp_request_sock_ops {
 #endif
 };
 
+extern int tcpv4_offload_init(void);
+
 extern void tcp_v4_init(void);
 extern void tcp_init(void);
 
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index 089cb9f..4d3e138 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -8,7 +8,7 @@ obj-y     := route.o inetpeer.o protocol.o \
 	     inet_timewait_sock.o inet_connection_sock.o \
 	     tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o \
 	     tcp_minisocks.o tcp_cong.o tcp_metrics.o tcp_fastopen.o \
-	     datagram.o raw.o udp.o udplite.o \
+	     tcp_offload.o datagram.o raw.o udp.o udplite.o \
 	     arp.o icmp.o devinet.o af_inet.o  igmp.o \
 	     fib_frontend.o fib_semantics.o fib_trie.o \
 	     inet_fragment.o ping.o
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 9c090c7..7b51429 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1559,15 +1559,6 @@ static const struct net_protocol tcp_protocol = {
 	.netns_ok	=	1,
 };
 
-static const struct net_offload tcp_offload = {
-	.callbacks = {
-		.gso_send_check	=	tcp_v4_gso_send_check,
-		.gso_segment	=	tcp_tso_segment,
-		.gro_receive	=	tcp4_gro_receive,
-		.gro_complete	=	tcp4_gro_complete,
-	},
-};
-
 static const struct net_protocol udp_protocol = {
 	.handler =	udp_rcv,
 	.err_handler =	udp_err,
@@ -1683,8 +1674,8 @@ static int __init ipv4_offload_init(void)
 	 */
 	if (inet_add_offload(&udp_offload, IPPROTO_UDP) < 0)
 		pr_crit("%s: Cannot add UDP protocol offload\n", __func__);
-	if (inet_add_offload(&tcp_offload, IPPROTO_TCP) < 0)
-		pr_crit("%s: Cannot add TCP protocol offlaod\n", __func__);
+	if (tcpv4_offload_init() < 0)
+		pr_crit("%s: Cannot add TCP protocol offload\n", __func__);
 
 	dev_add_offload(&ip_packet_offload);
 	return 0;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 6a1cf95..bc42469 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2877,247 +2877,6 @@ int compat_tcp_getsockopt(struct sock *sk, int level, int optname,
 EXPORT_SYMBOL(compat_tcp_getsockopt);
 #endif
 
-struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
-	netdev_features_t features)
-{
-	struct sk_buff *segs = ERR_PTR(-EINVAL);
-	struct tcphdr *th;
-	unsigned int thlen;
-	unsigned int seq;
-	__be32 delta;
-	unsigned int oldlen;
-	unsigned int mss;
-	struct sk_buff *gso_skb = skb;
-	__sum16 newcheck;
-	bool ooo_okay, copy_destructor;
-
-	if (!pskb_may_pull(skb, sizeof(*th)))
-		goto out;
-
-	th = tcp_hdr(skb);
-	thlen = th->doff * 4;
-	if (thlen < sizeof(*th))
-		goto out;
-
-	if (!pskb_may_pull(skb, thlen))
-		goto out;
-
-	oldlen = (u16)~skb->len;
-	__skb_pull(skb, thlen);
-
-	mss = tcp_skb_mss(skb);
-	if (unlikely(skb->len <= mss))
-		goto out;
-
-	if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
-		/* Packet is from an untrusted source, reset gso_segs. */
-		int type = skb_shinfo(skb)->gso_type;
-
-		if (unlikely(type &
-			     ~(SKB_GSO_TCPV4 |
-			       SKB_GSO_DODGY |
-			       SKB_GSO_TCP_ECN |
-			       SKB_GSO_TCPV6 |
-			       SKB_GSO_GRE |
-			       SKB_GSO_MPLS |
-			       SKB_GSO_UDP_TUNNEL |
-			       0) ||
-			     !(type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))))
-			goto out;
-
-		skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(skb->len, mss);
-
-		segs = NULL;
-		goto out;
-	}
-
-	copy_destructor = gso_skb->destructor == tcp_wfree;
-	ooo_okay = gso_skb->ooo_okay;
-	/* All segments but the first should have ooo_okay cleared */
-	skb->ooo_okay = 0;
-
-	segs = skb_segment(skb, features);
-	if (IS_ERR(segs))
-		goto out;
-
-	/* Only first segment might have ooo_okay set */
-	segs->ooo_okay = ooo_okay;
-
-	delta = htonl(oldlen + (thlen + mss));
-
-	skb = segs;
-	th = tcp_hdr(skb);
-	seq = ntohl(th->seq);
-
-	newcheck = ~csum_fold((__force __wsum)((__force u32)th->check +
-					       (__force u32)delta));
-
-	do {
-		th->fin = th->psh = 0;
-		th->check = newcheck;
-
-		if (skb->ip_summed != CHECKSUM_PARTIAL)
-			th->check =
-			     csum_fold(csum_partial(skb_transport_header(skb),
-						    thlen, skb->csum));
-
-		seq += mss;
-		if (copy_destructor) {
-			skb->destructor = gso_skb->destructor;
-			skb->sk = gso_skb->sk;
-			/* {tcp|sock}_wfree() use exact truesize accounting :
-			 * sum(skb->truesize) MUST be exactly be gso_skb->truesize
-			 * So we account mss bytes of 'true size' for each segment.
-			 * The last segment will contain the remaining.
-			 */
-			skb->truesize = mss;
-			gso_skb->truesize -= mss;
-		}
-		skb = skb->next;
-		th = tcp_hdr(skb);
-
-		th->seq = htonl(seq);
-		th->cwr = 0;
-	} while (skb->next);
-
-	/* Following permits TCP Small Queues to work well with GSO :
-	 * The callback to TCP stack will be called at the time last frag
-	 * is freed at TX completion, and not right now when gso_skb
-	 * is freed by GSO engine
-	 */
-	if (copy_destructor) {
-		swap(gso_skb->sk, skb->sk);
-		swap(gso_skb->destructor, skb->destructor);
-		swap(gso_skb->truesize, skb->truesize);
-	}
-
-	delta = htonl(oldlen + (skb_tail_pointer(skb) -
-				skb_transport_header(skb)) +
-		      skb->data_len);
-	th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
-				(__force u32)delta));
-	if (skb->ip_summed != CHECKSUM_PARTIAL)
-		th->check = csum_fold(csum_partial(skb_transport_header(skb),
-						   thlen, skb->csum));
-
-out:
-	return segs;
-}
-EXPORT_SYMBOL(tcp_tso_segment);
-
-struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
-{
-	struct sk_buff **pp = NULL;
-	struct sk_buff *p;
-	struct tcphdr *th;
-	struct tcphdr *th2;
-	unsigned int len;
-	unsigned int thlen;
-	__be32 flags;
-	unsigned int mss = 1;
-	unsigned int hlen;
-	unsigned int off;
-	int flush = 1;
-	int i;
-
-	off = skb_gro_offset(skb);
-	hlen = off + sizeof(*th);
-	th = skb_gro_header_fast(skb, off);
-	if (skb_gro_header_hard(skb, hlen)) {
-		th = skb_gro_header_slow(skb, hlen, off);
-		if (unlikely(!th))
-			goto out;
-	}
-
-	thlen = th->doff * 4;
-	if (thlen < sizeof(*th))
-		goto out;
-
-	hlen = off + thlen;
-	if (skb_gro_header_hard(skb, hlen)) {
-		th = skb_gro_header_slow(skb, hlen, off);
-		if (unlikely(!th))
-			goto out;
-	}
-
-	skb_gro_pull(skb, thlen);
-
-	len = skb_gro_len(skb);
-	flags = tcp_flag_word(th);
-
-	for (; (p = *head); head = &p->next) {
-		if (!NAPI_GRO_CB(p)->same_flow)
-			continue;
-
-		th2 = tcp_hdr(p);
-
-		if (*(u32 *)&th->source ^ *(u32 *)&th2->source) {
-			NAPI_GRO_CB(p)->same_flow = 0;
-			continue;
-		}
-
-		goto found;
-	}
-
-	goto out_check_final;
-
-found:
-	flush = NAPI_GRO_CB(p)->flush;
-	flush |= (__force int)(flags & TCP_FLAG_CWR);
-	flush |= (__force int)((flags ^ tcp_flag_word(th2)) &
-		  ~(TCP_FLAG_CWR | TCP_FLAG_FIN | TCP_FLAG_PSH));
-	flush |= (__force int)(th->ack_seq ^ th2->ack_seq);
-	for (i = sizeof(*th); i < thlen; i += 4)
-		flush |= *(u32 *)((u8 *)th + i) ^
-			 *(u32 *)((u8 *)th2 + i);
-
-	mss = tcp_skb_mss(p);
-
-	flush |= (len - 1) >= mss;
-	flush |= (ntohl(th2->seq) + skb_gro_len(p)) ^ ntohl(th->seq);
-
-	if (flush || skb_gro_receive(head, skb)) {
-		mss = 1;
-		goto out_check_final;
-	}
-
-	p = *head;
-	th2 = tcp_hdr(p);
-	tcp_flag_word(th2) |= flags & (TCP_FLAG_FIN | TCP_FLAG_PSH);
-
-out_check_final:
-	flush = len < mss;
-	flush |= (__force int)(flags & (TCP_FLAG_URG | TCP_FLAG_PSH |
-					TCP_FLAG_RST | TCP_FLAG_SYN |
-					TCP_FLAG_FIN));
-
-	if (p && (!NAPI_GRO_CB(skb)->same_flow || flush))
-		pp = head;
-
-out:
-	NAPI_GRO_CB(skb)->flush |= flush;
-
-	return pp;
-}
-EXPORT_SYMBOL(tcp_gro_receive);
-
-int tcp_gro_complete(struct sk_buff *skb)
-{
-	struct tcphdr *th = tcp_hdr(skb);
-
-	skb->csum_start = skb_transport_header(skb) - skb->head;
-	skb->csum_offset = offsetof(struct tcphdr, check);
-	skb->ip_summed = CHECKSUM_PARTIAL;
-
-	skb_shinfo(skb)->gso_segs = NAPI_GRO_CB(skb)->count;
-
-	if (th->cwr)
-		skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN;
-
-	return 0;
-}
-EXPORT_SYMBOL(tcp_gro_complete);
-
 #ifdef CONFIG_TCP_MD5SIG
 static struct tcp_md5sig_pool __percpu *tcp_md5sig_pool __read_mostly;
 static DEFINE_MUTEX(tcp_md5sig_mutex);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index d20ede0..289039b4 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -545,8 +545,7 @@ out:
 	sock_put(sk);
 }
 
-static void __tcp_v4_send_check(struct sk_buff *skb,
-				__be32 saddr, __be32 daddr)
+void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr, __be32 daddr)
 {
 	struct tcphdr *th = tcp_hdr(skb);
 
@@ -571,23 +570,6 @@ void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(tcp_v4_send_check);
 
-int tcp_v4_gso_send_check(struct sk_buff *skb)
-{
-	const struct iphdr *iph;
-	struct tcphdr *th;
-
-	if (!pskb_may_pull(skb, sizeof(*th)))
-		return -EINVAL;
-
-	iph = ip_hdr(skb);
-	th = tcp_hdr(skb);
-
-	th->check = 0;
-	skb->ip_summed = CHECKSUM_PARTIAL;
-	__tcp_v4_send_check(skb, iph->saddr, iph->daddr);
-	return 0;
-}
-
 /*
  *	This routine will send an RST to the other tcp.
  *
@@ -2795,52 +2777,6 @@ void tcp4_proc_exit(void)
 }
 #endif /* CONFIG_PROC_FS */
 
-struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *skb)
-{
-	const struct iphdr *iph = skb_gro_network_header(skb);
-	__wsum wsum;
-	__sum16 sum;
-
-	switch (skb->ip_summed) {
-	case CHECKSUM_COMPLETE:
-		if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr,
-				  skb->csum)) {
-			skb->ip_summed = CHECKSUM_UNNECESSARY;
-			break;
-		}
-flush:
-		NAPI_GRO_CB(skb)->flush = 1;
-		return NULL;
-
-	case CHECKSUM_NONE:
-		wsum = csum_tcpudp_nofold(iph->saddr, iph->daddr,
-					  skb_gro_len(skb), IPPROTO_TCP, 0);
-		sum = csum_fold(skb_checksum(skb,
-					     skb_gro_offset(skb),
-					     skb_gro_len(skb),
-					     wsum));
-		if (sum)
-			goto flush;
-
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-		break;
-	}
-
-	return tcp_gro_receive(head, skb);
-}
-
-int tcp4_gro_complete(struct sk_buff *skb)
-{
-	const struct iphdr *iph = ip_hdr(skb);
-	struct tcphdr *th = tcp_hdr(skb);
-
-	th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb),
-				  iph->saddr, iph->daddr, 0);
-	skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
-
-	return tcp_gro_complete(skb);
-}
-
 struct proto tcp_prot = {
 	.name			= "TCP",
 	.owner			= THIS_MODULE,
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
new file mode 100644
index 0000000..3a7525e
--- /dev/null
+++ b/net/ipv4/tcp_offload.c
@@ -0,0 +1,332 @@
+/*
+ *	IPV4 GSO/GRO offload support
+ *	Linux INET implementation
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	TCPv4 GSO/GRO support
+ */
+
+#include <linux/skbuff.h>
+#include <net/tcp.h>
+#include <net/protocol.h>
+
+struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
+				netdev_features_t features)
+{
+	struct sk_buff *segs = ERR_PTR(-EINVAL);
+	struct tcphdr *th;
+	unsigned int thlen;
+	unsigned int seq;
+	__be32 delta;
+	unsigned int oldlen;
+	unsigned int mss;
+	struct sk_buff *gso_skb = skb;
+	__sum16 newcheck;
+	bool ooo_okay, copy_destructor;
+
+	if (!pskb_may_pull(skb, sizeof(*th)))
+		goto out;
+
+	th = tcp_hdr(skb);
+	thlen = th->doff * 4;
+	if (thlen < sizeof(*th))
+		goto out;
+
+	if (!pskb_may_pull(skb, thlen))
+		goto out;
+
+	oldlen = (u16)~skb->len;
+	__skb_pull(skb, thlen);
+
+	mss = tcp_skb_mss(skb);
+	if (unlikely(skb->len <= mss))
+		goto out;
+
+	if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
+		/* Packet is from an untrusted source, reset gso_segs. */
+		int type = skb_shinfo(skb)->gso_type;
+
+		if (unlikely(type &
+			     ~(SKB_GSO_TCPV4 |
+			       SKB_GSO_DODGY |
+			       SKB_GSO_TCP_ECN |
+			       SKB_GSO_TCPV6 |
+			       SKB_GSO_GRE |
+			       SKB_GSO_MPLS |
+			       SKB_GSO_UDP_TUNNEL |
+			       0) ||
+			     !(type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))))
+			goto out;
+
+		skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(skb->len, mss);
+
+		segs = NULL;
+		goto out;
+	}
+
+	copy_destructor = gso_skb->destructor == tcp_wfree;
+	ooo_okay = gso_skb->ooo_okay;
+	/* All segments but the first should have ooo_okay cleared */
+	skb->ooo_okay = 0;
+
+	segs = skb_segment(skb, features);
+	if (IS_ERR(segs))
+		goto out;
+
+	/* Only first segment might have ooo_okay set */
+	segs->ooo_okay = ooo_okay;
+
+	delta = htonl(oldlen + (thlen + mss));
+
+	skb = segs;
+	th = tcp_hdr(skb);
+	seq = ntohl(th->seq);
+
+	newcheck = ~csum_fold((__force __wsum)((__force u32)th->check +
+					       (__force u32)delta));
+
+	do {
+		th->fin = th->psh = 0;
+		th->check = newcheck;
+
+		if (skb->ip_summed != CHECKSUM_PARTIAL)
+			th->check =
+			     csum_fold(csum_partial(skb_transport_header(skb),
+						    thlen, skb->csum));
+
+		seq += mss;
+		if (copy_destructor) {
+			skb->destructor = gso_skb->destructor;
+			skb->sk = gso_skb->sk;
+			/* {tcp|sock}_wfree() use exact truesize accounting :
+			 * sum(skb->truesize) MUST be exactly be gso_skb->truesize
+			 * So we account mss bytes of 'true size' for each segment.
+			 * The last segment will contain the remaining.
+			 */
+			skb->truesize = mss;
+			gso_skb->truesize -= mss;
+		}
+		skb = skb->next;
+		th = tcp_hdr(skb);
+
+		th->seq = htonl(seq);
+		th->cwr = 0;
+	} while (skb->next);
+
+	/* Following permits TCP Small Queues to work well with GSO :
+	 * The callback to TCP stack will be called at the time last frag
+	 * is freed at TX completion, and not right now when gso_skb
+	 * is freed by GSO engine
+	 */
+	if (copy_destructor) {
+		swap(gso_skb->sk, skb->sk);
+		swap(gso_skb->destructor, skb->destructor);
+		swap(gso_skb->truesize, skb->truesize);
+	}
+
+	delta = htonl(oldlen + (skb_tail_pointer(skb) -
+				skb_transport_header(skb)) +
+		      skb->data_len);
+	th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
+				(__force u32)delta));
+	if (skb->ip_summed != CHECKSUM_PARTIAL)
+		th->check = csum_fold(csum_partial(skb_transport_header(skb),
+						   thlen, skb->csum));
+out:
+	return segs;
+}
+EXPORT_SYMBOL(tcp_tso_segment);
+
+struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
+{
+	struct sk_buff **pp = NULL;
+	struct sk_buff *p;
+	struct tcphdr *th;
+	struct tcphdr *th2;
+	unsigned int len;
+	unsigned int thlen;
+	__be32 flags;
+	unsigned int mss = 1;
+	unsigned int hlen;
+	unsigned int off;
+	int flush = 1;
+	int i;
+
+	off = skb_gro_offset(skb);
+	hlen = off + sizeof(*th);
+	th = skb_gro_header_fast(skb, off);
+	if (skb_gro_header_hard(skb, hlen)) {
+		th = skb_gro_header_slow(skb, hlen, off);
+		if (unlikely(!th))
+			goto out;
+	}
+
+	thlen = th->doff * 4;
+	if (thlen < sizeof(*th))
+		goto out;
+
+	hlen = off + thlen;
+	if (skb_gro_header_hard(skb, hlen)) {
+		th = skb_gro_header_slow(skb, hlen, off);
+		if (unlikely(!th))
+			goto out;
+	}
+
+	skb_gro_pull(skb, thlen);
+
+	len = skb_gro_len(skb);
+	flags = tcp_flag_word(th);
+
+	for (; (p = *head); head = &p->next) {
+		if (!NAPI_GRO_CB(p)->same_flow)
+			continue;
+
+		th2 = tcp_hdr(p);
+
+		if (*(u32 *)&th->source ^ *(u32 *)&th2->source) {
+			NAPI_GRO_CB(p)->same_flow = 0;
+			continue;
+		}
+
+		goto found;
+	}
+
+	goto out_check_final;
+
+found:
+	flush = NAPI_GRO_CB(p)->flush;
+	flush |= (__force int)(flags & TCP_FLAG_CWR);
+	flush |= (__force int)((flags ^ tcp_flag_word(th2)) &
+		  ~(TCP_FLAG_CWR | TCP_FLAG_FIN | TCP_FLAG_PSH));
+	flush |= (__force int)(th->ack_seq ^ th2->ack_seq);
+	for (i = sizeof(*th); i < thlen; i += 4)
+		flush |= *(u32 *)((u8 *)th + i) ^
+			 *(u32 *)((u8 *)th2 + i);
+
+	mss = tcp_skb_mss(p);
+
+	flush |= (len - 1) >= mss;
+	flush |= (ntohl(th2->seq) + skb_gro_len(p)) ^ ntohl(th->seq);
+
+	if (flush || skb_gro_receive(head, skb)) {
+		mss = 1;
+		goto out_check_final;
+	}
+
+	p = *head;
+	th2 = tcp_hdr(p);
+	tcp_flag_word(th2) |= flags & (TCP_FLAG_FIN | TCP_FLAG_PSH);
+
+out_check_final:
+	flush = len < mss;
+	flush |= (__force int)(flags & (TCP_FLAG_URG | TCP_FLAG_PSH |
+					TCP_FLAG_RST | TCP_FLAG_SYN |
+					TCP_FLAG_FIN));
+
+	if (p && (!NAPI_GRO_CB(skb)->same_flow || flush))
+		pp = head;
+
+out:
+	NAPI_GRO_CB(skb)->flush |= flush;
+
+	return pp;
+}
+EXPORT_SYMBOL(tcp_gro_receive);
+
+int tcp_gro_complete(struct sk_buff *skb)
+{
+	struct tcphdr *th = tcp_hdr(skb);
+
+	skb->csum_start = skb_transport_header(skb) - skb->head;
+	skb->csum_offset = offsetof(struct tcphdr, check);
+	skb->ip_summed = CHECKSUM_PARTIAL;
+
+	skb_shinfo(skb)->gso_segs = NAPI_GRO_CB(skb)->count;
+
+	if (th->cwr)
+		skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN;
+
+	return 0;
+}
+EXPORT_SYMBOL(tcp_gro_complete);
+
+static int tcp_v4_gso_send_check(struct sk_buff *skb)
+{
+	const struct iphdr *iph;
+	struct tcphdr *th;
+
+	if (!pskb_may_pull(skb, sizeof(*th)))
+		return -EINVAL;
+
+	iph = ip_hdr(skb);
+	th = tcp_hdr(skb);
+
+	th->check = 0;
+	skb->ip_summed = CHECKSUM_PARTIAL;
+	__tcp_v4_send_check(skb, iph->saddr, iph->daddr);
+	return 0;
+}
+
+static struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *skb)
+{
+	const struct iphdr *iph = skb_gro_network_header(skb);
+	__wsum wsum;
+	__sum16 sum;
+
+	switch (skb->ip_summed) {
+	case CHECKSUM_COMPLETE:
+		if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr,
+				  skb->csum)) {
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+			break;
+		}
+flush:
+		NAPI_GRO_CB(skb)->flush = 1;
+		return NULL;
+
+	case CHECKSUM_NONE:
+		wsum = csum_tcpudp_nofold(iph->saddr, iph->daddr,
+					  skb_gro_len(skb), IPPROTO_TCP, 0);
+		sum = csum_fold(skb_checksum(skb,
+					     skb_gro_offset(skb),
+					     skb_gro_len(skb),
+					     wsum));
+		if (sum)
+			goto flush;
+
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		break;
+	}
+
+	return tcp_gro_receive(head, skb);
+}
+
+static int tcp4_gro_complete(struct sk_buff *skb)
+{
+	const struct iphdr *iph = ip_hdr(skb);
+	struct tcphdr *th = tcp_hdr(skb);
+
+	th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb),
+				  iph->saddr, iph->daddr, 0);
+	skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
+
+	return tcp_gro_complete(skb);
+}
+
+static const struct net_offload tcpv4_offload = {
+	.callbacks = {
+		.gso_send_check	=	tcp_v4_gso_send_check,
+		.gso_segment	=	tcp_tso_segment,
+		.gro_receive	=	tcp4_gro_receive,
+		.gro_complete	=	tcp4_gro_complete,
+	},
+};
+
+int __init tcpv4_offload_init(void)
+{
+	return inet_add_offload(&tcpv4_offload, IPPROTO_TCP);
+}
-- 
cgit v0.10.2


From ca162a82f56921442f5db72a3a472010e5a62c4b Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 7 Jun 2013 10:48:00 +0000
Subject: fec: Only pass pdev in fec_ptp_init()

Passing pdev in fec_ptp_init() is enough, since we can get ndev locally.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index b11cdbc..e3ed6c5 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -275,7 +275,7 @@ struct fec_enet_private {
 	struct regulator *reg_phy;
 };
 
-void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev);
+void fec_ptp_init(struct platform_device *pdev);
 void fec_ptp_start_cyclecounter(struct net_device *ndev);
 int fec_ptp_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd);
 
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index c42c42a..fa4a68f 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1945,7 +1945,7 @@ fec_probe(struct platform_device *pdev)
 	fec_reset_phy(pdev);
 
 	if (fep->bufdesc_ex)
-		fec_ptp_init(ndev, pdev);
+		fec_ptp_init(pdev);
 
 	ret = fec_enet_init(ndev);
 	if (ret)
diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c
index 25fc960..5007e4f 100644
--- a/drivers/net/ethernet/freescale/fec_ptp.c
+++ b/drivers/net/ethernet/freescale/fec_ptp.c
@@ -347,8 +347,9 @@ static void fec_time_keep(unsigned long _data)
  * cyclecounter init routine and exits.
  */
 
-void fec_ptp_init(struct net_device *ndev, struct platform_device *pdev)
+void fec_ptp_init(struct platform_device *pdev)
 {
+	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct fec_enet_private *fep = netdev_priv(ndev);
 
 	fep->ptp_caps.owner = THIS_MODULE;
-- 
cgit v0.10.2


From 303d1cbf610eef31e039efc2e8da30cf94cf5ebc Mon Sep 17 00:00:00 2001
From: Jay Vosburgh <fubar@us.ibm.com>
Date: Fri, 31 May 2013 11:57:30 +0000
Subject: bonding: Convert hw addr handling to sync/unsync, support ucast
 addresses

This patch converts bonding to use the dev_uc/mc_sync and
dev_uc/mc_sync_multiple functions for updating the hardware addresses
of bonding slaves.

	The existing functions to add or remove addresses are removed,
and their functionality is replaced with calls to dev_mc_sync or
dev_mc_sync_multiple, depending upon the bonding mode.

	Calls to dev_uc_sync and dev_uc_sync_multiple are also added,
so that unicast addresses added to a bond will be properly synced with
its slaves.

	Various functions are renamed to better reflect the new
situation, and relevant comments are updated.

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Cc: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index f4489d6..4953f66 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -706,45 +706,6 @@ static int bond_set_allmulti(struct bonding *bond, int inc)
 	return err;
 }
 
-/*
- * Add a Multicast address to slaves
- * according to mode
- */
-static void bond_mc_add(struct bonding *bond, void *addr)
-{
-	if (USES_PRIMARY(bond->params.mode)) {
-		/* write lock already acquired */
-		if (bond->curr_active_slave)
-			dev_mc_add(bond->curr_active_slave->dev, addr);
-	} else {
-		struct slave *slave;
-		int i;
-
-		bond_for_each_slave(bond, slave, i)
-			dev_mc_add(slave->dev, addr);
-	}
-}
-
-/*
- * Remove a multicast address from slave
- * according to mode
- */
-static void bond_mc_del(struct bonding *bond, void *addr)
-{
-	if (USES_PRIMARY(bond->params.mode)) {
-		/* write lock already acquired */
-		if (bond->curr_active_slave)
-			dev_mc_del(bond->curr_active_slave->dev, addr);
-	} else {
-		struct slave *slave;
-		int i;
-		bond_for_each_slave(bond, slave, i) {
-			dev_mc_del(slave->dev, addr);
-		}
-	}
-}
-
-
 static void __bond_resend_igmp_join_requests(struct net_device *dev)
 {
 	struct in_device *in_dev;
@@ -803,17 +764,15 @@ static void bond_resend_igmp_join_requests_delayed(struct work_struct *work)
 	bond_resend_igmp_join_requests(bond);
 }
 
-/*
- * flush all members of flush->mc_list from device dev->mc_list
+/* Flush bond's hardware addresses from slave
  */
-static void bond_mc_list_flush(struct net_device *bond_dev,
+static void bond_hw_addr_flush(struct net_device *bond_dev,
 			       struct net_device *slave_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct netdev_hw_addr *ha;
 
-	netdev_for_each_mc_addr(ha, bond_dev)
-		dev_mc_del(slave_dev, ha->addr);
+	dev_uc_unsync(slave_dev, bond_dev);
+	dev_mc_unsync(slave_dev, bond_dev);
 
 	if (bond->params.mode == BOND_MODE_8023AD) {
 		/* del lacpdu mc addr from mc list */
@@ -825,22 +784,14 @@ static void bond_mc_list_flush(struct net_device *bond_dev,
 
 /*--------------------------- Active slave change ---------------------------*/
 
-/*
- * Update the mc list and multicast-related flags for the new and
- * old active slaves (if any) according to the multicast mode, and
- * promiscuous flags unconditionally.
+/* Update the hardware address list and promisc/allmulti for the new and
+ * old active slaves (if any).  Modes that are !USES_PRIMARY keep all
+ * slaves up date at all times; only the USES_PRIMARY modes need to call
+ * this function to swap these settings during a failover.
  */
-static void bond_mc_swap(struct bonding *bond, struct slave *new_active,
-			 struct slave *old_active)
+static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active,
+			      struct slave *old_active)
 {
-	struct netdev_hw_addr *ha;
-
-	if (!USES_PRIMARY(bond->params.mode))
-		/* nothing to do -  mc list is already up-to-date on
-		 * all slaves
-		 */
-		return;
-
 	if (old_active) {
 		if (bond->dev->flags & IFF_PROMISC)
 			dev_set_promiscuity(old_active->dev, -1);
@@ -848,10 +799,7 @@ static void bond_mc_swap(struct bonding *bond, struct slave *new_active,
 		if (bond->dev->flags & IFF_ALLMULTI)
 			dev_set_allmulti(old_active->dev, -1);
 
-		netif_addr_lock_bh(bond->dev);
-		netdev_for_each_mc_addr(ha, bond->dev)
-			dev_mc_del(old_active->dev, ha->addr);
-		netif_addr_unlock_bh(bond->dev);
+		bond_hw_addr_flush(bond->dev, old_active->dev);
 	}
 
 	if (new_active) {
@@ -863,8 +811,8 @@ static void bond_mc_swap(struct bonding *bond, struct slave *new_active,
 			dev_set_allmulti(new_active->dev, 1);
 
 		netif_addr_lock_bh(bond->dev);
-		netdev_for_each_mc_addr(ha, bond->dev)
-			dev_mc_add(new_active->dev, ha->addr);
+		dev_uc_sync(new_active->dev, bond->dev);
+		dev_mc_sync(new_active->dev, bond->dev);
 		netif_addr_unlock_bh(bond->dev);
 	}
 }
@@ -1083,7 +1031,7 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active)
 	}
 
 	if (USES_PRIMARY(bond->params.mode))
-		bond_mc_swap(bond, new_active, old_active);
+		bond_hw_addr_swap(bond, new_active, old_active);
 
 	if (bond_is_lb(bond)) {
 		bond_alb_handle_active_change(bond, new_active);
@@ -1526,7 +1474,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	struct bonding *bond = netdev_priv(bond_dev);
 	const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
 	struct slave *new_slave = NULL;
-	struct netdev_hw_addr *ha;
 	struct sockaddr addr;
 	int link_reporting;
 	int res = 0;
@@ -1706,10 +1653,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 			goto err_close;
 	}
 
-	/* If the mode USES_PRIMARY, then the new slave gets the
-	 * master's promisc (and mc) settings only if it becomes the
-	 * curr_active_slave, and that is taken care of later when calling
-	 * bond_change_active()
+	/* If the mode USES_PRIMARY, then the following is handled by
+	 * bond_change_active_slave().
 	 */
 	if (!USES_PRIMARY(bond->params.mode)) {
 		/* set promiscuity level to new slave */
@@ -1727,9 +1672,10 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		}
 
 		netif_addr_lock_bh(bond_dev);
-		/* upload master's mc_list to new slave */
-		netdev_for_each_mc_addr(ha, bond_dev)
-			dev_mc_add(slave_dev, ha->addr);
+
+		dev_mc_sync_multiple(slave_dev, bond_dev);
+		dev_uc_sync_multiple(slave_dev, bond_dev);
+
 		netif_addr_unlock_bh(bond_dev);
 	}
 
@@ -1908,11 +1854,9 @@ err_dest_symlinks:
 	bond_destroy_slave_symlinks(bond_dev, slave_dev);
 
 err_detach:
-	if (!USES_PRIMARY(bond->params.mode)) {
-		netif_addr_lock_bh(bond_dev);
-		bond_mc_list_flush(bond_dev, slave_dev);
-		netif_addr_unlock_bh(bond_dev);
-	}
+	if (!USES_PRIMARY(bond->params.mode))
+		bond_hw_addr_flush(bond_dev, slave_dev);
+
 	bond_del_vlans_from_slave(bond, slave_dev);
 	write_lock_bh(&bond->lock);
 	bond_detach_slave(bond, new_slave);
@@ -2107,9 +2051,8 @@ static int __bond_release_one(struct net_device *bond_dev,
 
 	bond_del_vlans_from_slave(bond, slave_dev);
 
-	/* If the mode USES_PRIMARY, then we should only remove its
-	 * promisc and mc settings if it was the curr_active_slave, but that was
-	 * already taken care of above when we detached the slave
+	/* If the mode USES_PRIMARY, then this cases was handled above by
+	 * bond_change_active_slave(..., NULL)
 	 */
 	if (!USES_PRIMARY(bond->params.mode)) {
 		/* unset promiscuity level from slave */
@@ -2120,10 +2063,7 @@ static int __bond_release_one(struct net_device *bond_dev,
 		if (bond_dev->flags & IFF_ALLMULTI)
 			dev_set_allmulti(slave_dev, -1);
 
-		/* flush master's mc_list from slave */
-		netif_addr_lock_bh(bond_dev);
-		bond_mc_list_flush(bond_dev, slave_dev);
-		netif_addr_unlock_bh(bond_dev);
+		bond_hw_addr_flush(bond_dev, slave_dev);
 	}
 
 	bond_upper_dev_unlink(bond_dev, slave_dev);
@@ -3660,19 +3600,6 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
 	return res;
 }
 
-static bool bond_addr_in_mc_list(unsigned char *addr,
-				 struct netdev_hw_addr_list *list,
-				 int addrlen)
-{
-	struct netdev_hw_addr *ha;
-
-	netdev_hw_addr_list_for_each(ha, list)
-		if (!memcmp(ha->addr, addr, addrlen))
-			return true;
-
-	return false;
-}
-
 static void bond_change_rx_flags(struct net_device *bond_dev, int change)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
@@ -3686,35 +3613,29 @@ static void bond_change_rx_flags(struct net_device *bond_dev, int change)
 				  bond_dev->flags & IFF_ALLMULTI ? 1 : -1);
 }
 
-static void bond_set_multicast_list(struct net_device *bond_dev)
+static void bond_set_rx_mode(struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct netdev_hw_addr *ha;
-	bool found;
+	struct slave *slave;
+	int i;
 
 	read_lock(&bond->lock);
 
-	/* looking for addresses to add to slaves' mc list */
-	netdev_for_each_mc_addr(ha, bond_dev) {
-		found = bond_addr_in_mc_list(ha->addr, &bond->mc_list,
-					     bond_dev->addr_len);
-		if (!found)
-			bond_mc_add(bond, ha->addr);
-	}
-
-	/* looking for addresses to delete from slaves' list */
-	netdev_hw_addr_list_for_each(ha, &bond->mc_list) {
-		found = bond_addr_in_mc_list(ha->addr, &bond_dev->mc,
-					     bond_dev->addr_len);
-		if (!found)
-			bond_mc_del(bond, ha->addr);
+	if (USES_PRIMARY(bond->params.mode)) {
+		read_lock(&bond->curr_slave_lock);
+		slave = bond->curr_active_slave;
+		if (slave) {
+			dev_uc_sync(slave->dev, bond_dev);
+			dev_mc_sync(slave->dev, bond_dev);
+		}
+		read_unlock(&bond->curr_slave_lock);
+	} else {
+		bond_for_each_slave(bond, slave, i) {
+			dev_uc_sync_multiple(slave->dev, bond_dev);
+			dev_mc_sync_multiple(slave->dev, bond_dev);
+		}
 	}
 
-	/* save master's multicast list */
-	__hw_addr_flush(&bond->mc_list);
-	__hw_addr_add_multiple(&bond->mc_list, &bond_dev->mc,
-			       bond_dev->addr_len, NETDEV_HW_ADDR_T_MULTICAST);
-
 	read_unlock(&bond->lock);
 }
 
@@ -4321,7 +4242,7 @@ static const struct net_device_ops bond_netdev_ops = {
 	.ndo_get_stats64	= bond_get_stats,
 	.ndo_do_ioctl		= bond_do_ioctl,
 	.ndo_change_rx_flags	= bond_change_rx_flags,
-	.ndo_set_rx_mode	= bond_set_multicast_list,
+	.ndo_set_rx_mode	= bond_set_rx_mode,
 	.ndo_change_mtu		= bond_change_mtu,
 	.ndo_set_mac_address	= bond_set_mac_address,
 	.ndo_neigh_setup	= bond_neigh_setup,
@@ -4426,8 +4347,6 @@ static void bond_uninit(struct net_device *bond_dev)
 
 	bond_debug_unregister(bond);
 
-	__hw_addr_flush(&bond->mc_list);
-
 	list_for_each_entry_safe(vlan, tmp, &bond->vlan_list, vlan_list) {
 		list_del(&vlan->vlan_list);
 		kfree(vlan);
@@ -4838,7 +4757,6 @@ static int bond_init(struct net_device *bond_dev)
 		bond->dev_addr_from_first = true;
 	}
 
-	__hw_addr_init(&bond->mc_list);
 	return 0;
 }
 
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 2baec24..b38609b 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -231,7 +231,6 @@ struct bonding {
 	char     proc_file_name[IFNAMSIZ];
 #endif /* CONFIG_PROC_FS */
 	struct   list_head bond_list;
-	struct   netdev_hw_addr_list mc_list;
 	int      (*xmit_hash_policy)(struct sk_buff *, int);
 	u16      rr_tx_counter;
 	struct   ad_bond_info ad_info;
-- 
cgit v0.10.2


From 1b5acd292336da029535de010af568533df9b665 Mon Sep 17 00:00:00 2001
From: Jay Vosburgh <fubar@us.ibm.com>
Date: Fri, 31 May 2013 11:57:31 +0000
Subject: bonding: disallow change of MAC if fail_over_mac enabled

Currently, if fail_over_mac is set to active, then attempts to
change the MAC of the bond itself silently fail.  However, if fail_over_mac
is set to follow, changes are permitted.

	Permitting the bond's MAC to change with fail_over_mac=follow
will disrupt the follow functionality, which normally controls the
assignment of MAC address to the bond and its slaves, and can cause
multiple ports to be assigned the same MAC address. which will interfere
with the functioning of the device (where the device here is a
virtualization-aware card for s390, qeth).

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4953f66..bc1246f 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3780,11 +3780,10 @@ static int bond_set_mac_address(struct net_device *bond_dev, void *addr)
 	pr_debug("bond=%p, name=%s\n",
 		 bond, bond_dev ? bond_dev->name : "None");
 
-	/*
-	 * If fail_over_mac is set to active, do nothing and return
-	 * success.  Returning an error causes ifenslave to fail.
+	/* If fail_over_mac is enabled, do nothing and return success.
+	 * Returning an error causes ifenslave to fail.
 	 */
-	if (bond->params.fail_over_mac == BOND_FOM_ACTIVE)
+	if (bond->params.fail_over_mac)
 		return 0;
 
 	if (!is_valid_ether_addr(sa->sa_data))
-- 
cgit v0.10.2


From c05cdb1b864f548c0c3d8ae3b51264e6739a69b1 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 3 Jun 2013 09:46:28 +0000
Subject: netlink: allow large data transfers from user-space

I can hit ENOBUFS in the sendmsg() path with a large batch that is
composed of many netlink messages. Here that limit is 8 MBytes of
skbuff data area as kmalloc does not manage to get more than that.

While discussing atomic rule-set for nftables with Patrick McHardy,
we decided to put all rule-set updates that need to be applied
atomically in one single batch to simplify the existing approach.
However, as explained above, the existing netlink code limits us
to a maximum of ~20000 rules that fit in one single batch without
hitting ENOBUFS. iptables does not have such limitation as it is
using vmalloc.

This patch adds netlink_alloc_large_skb() which is only used in
the netlink_sendmsg() path. It uses alloc_skb if the memory
requested is <= one memory page, that should be the common case
for most subsystems, else vmalloc for higher memory allocations.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index d0b3dd6..68c1673 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -750,6 +750,10 @@ static void netlink_skb_destructor(struct sk_buff *skb)
 		skb->head = NULL;
 	}
 #endif
+	if (is_vmalloc_addr(skb->head)) {
+		vfree(skb->head);
+		skb->head = NULL;
+	}
 	if (skb->sk != NULL)
 		sock_rfree(skb);
 }
@@ -1420,6 +1424,35 @@ struct sock *netlink_getsockbyfilp(struct file *filp)
 	return sock;
 }
 
+static struct sk_buff *netlink_alloc_large_skb(unsigned int size)
+{
+	struct sk_buff *skb;
+	void *data;
+
+	if (size <= NLMSG_GOODSIZE)
+		return alloc_skb(size, GFP_KERNEL);
+
+	skb = alloc_skb_head(GFP_KERNEL);
+	if (skb == NULL)
+		return NULL;
+
+	data = vmalloc(size);
+	if (data == NULL)
+		goto err;
+
+	skb->head	= data;
+	skb->data	= data;
+	skb_reset_tail_pointer(skb);
+	skb->end	= skb->tail + size;
+	skb->len	= 0;
+	skb->destructor = netlink_skb_destructor;
+
+	return skb;
+err:
+	kfree_skb(skb);
+	return NULL;
+}
+
 /*
  * Attach a skb to a netlink socket.
  * The caller must hold a reference to the destination socket. On error, the
@@ -1510,7 +1543,7 @@ static struct sk_buff *netlink_trim(struct sk_buff *skb, gfp_t allocation)
 		return skb;
 
 	delta = skb->end - skb->tail;
-	if (delta * 2 < skb->truesize)
+	if (is_vmalloc_addr(skb->head) || delta * 2 < skb->truesize)
 		return skb;
 
 	if (skb_shared(skb)) {
@@ -2096,7 +2129,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
 	if (len > sk->sk_sndbuf - 32)
 		goto out;
 	err = -ENOBUFS;
-	skb = alloc_skb(len, GFP_KERNEL);
+	skb = netlink_alloc_large_skb(len);
 	if (skb == NULL)
 		goto out;
 
-- 
cgit v0.10.2


From e8b265e8ba322a01bb746504f6f64b5506853eac Mon Sep 17 00:00:00 2001
From: Rami Rosen <ramirose@gmail.com>
Date: Fri, 7 Jun 2013 20:16:19 +0000
Subject: doc:networking: Fix default value
 (icmp_ignore_bogus_error_responses).

This patch fixes icmp_ignore_bogus_error_responses default value to be 1 instead
of FALSE. It is initialized to 1 in icmp_sk_init().

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 398d0fb..9cea5d3 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -729,7 +729,7 @@ icmp_ignore_bogus_error_responses - BOOLEAN
 	frames.  Such violations are normally logged via a kernel warning.
 	If this is set to TRUE, the kernel will not give such warnings, which
 	will avoid log file clutter.
-	Default: FALSE
+	Default: 1
 
 icmp_errors_use_inbound_ifaddr - BOOLEAN
 
-- 
cgit v0.10.2


From afe391ad4b05f8f00ca955e165f3b37b480506b7 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 13:54:02 +0000
Subject: sh_eth: create initial ID table

We are trying to get away from the current driver's scheme of identifying a SoC
based on #ifdef's and the platform device ID table matching seems to be a good
replacement -- we can use the 'driver_data' field of 'struct platform_device_id'
as a pointer to a 'struct sh_eth_cpu_data'. Start by creating the initial table
with driver's name as the only entry without the driver data. Check  the driver
data in the probe() method and if it's not NULL override 'mdp->cd' from it.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 0699b1e..cf062de 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2519,6 +2519,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	struct net_device *ndev = NULL;
 	struct sh_eth_private *mdp = NULL;
 	struct sh_eth_plat_data *pd = pdev->dev.platform_data;
+	const struct platform_device_id *id = platform_get_device_id(pdev);
 
 	/* get base addr */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -2582,6 +2583,8 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 #else
 	mdp->cd = &sh_eth_my_cpu_data;
 #endif
+	if (id->driver_data)
+		mdp->cd = (struct sh_eth_cpu_data *)id->driver_data;
 	sh_eth_set_default_cpu_data(mdp->cd);
 
 	/* set function */
@@ -2696,9 +2699,16 @@ static const struct dev_pm_ops sh_eth_dev_pm_ops = {
 #define SH_ETH_PM_OPS NULL
 #endif
 
+static struct platform_device_id sh_eth_id_table[] = {
+	{ CARDNAME },
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, sh_eth_id_table);
+
 static struct platform_driver sh_eth_driver = {
 	.probe = sh_eth_drv_probe,
 	.remove = sh_eth_drv_remove,
+	.id_table = sh_eth_id_table,
 	.driver = {
 		   .name = CARDNAME,
 		   .pm = SH_ETH_PM_OPS,
-- 
cgit v0.10.2


From 7bbe150d8c57c59689c8c50fd7b9915f4a7e10da Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 13:55:08 +0000
Subject: sh_eth: get SH771x support out of #ifdef

Get the SH771[02] data in the driver out of #ifdef by adding "sh771x-ether" to
the platform driver's ID table. Change the Ether platform device's name in the
SH platform code accordingly.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sh/boards/mach-se/770x/setup.c b/arch/sh/boards/mach-se/770x/setup.c
index 9759d6b..658326f 100644
--- a/arch/sh/boards/mach-se/770x/setup.c
+++ b/arch/sh/boards/mach-se/770x/setup.c
@@ -128,8 +128,8 @@ static struct resource sh_eth0_resources[] = {
 };
 
 static struct platform_device sh_eth0_device = {
-	.name = "sh-eth",
-	.id	= 0,
+	.name = "sh771x-ether",
+	.id = 0,
 	.dev = {
 		.platform_data = PHY_ID,
 	},
@@ -151,8 +151,8 @@ static struct resource sh_eth1_resources[] = {
 };
 
 static struct platform_device sh_eth1_device = {
-	.name = "sh-eth",
-	.id	= 1,
+	.name = "sh771x-ether",
+	.id = 1,
 	.dev = {
 		.platform_data = PHY_ID,
 	},
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index cf062de..f26546a 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -690,12 +690,12 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.tpauser	= 1,
 	.hw_swap	= 1,
 };
-#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
-static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+#endif
+
+static struct sh_eth_cpu_data sh771x_data = {
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
 	.tsu		= 1,
 };
-#endif
 
 static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd)
 {
@@ -2700,6 +2700,7 @@ static const struct dev_pm_ops sh_eth_dev_pm_ops = {
 #endif
 
 static struct platform_device_id sh_eth_id_table[] = {
+	{ "sh771x-ether", (kernel_ulong_t)&sh771x_data },
 	{ CARDNAME },
 	{ }
 };
-- 
cgit v0.10.2


From c18a79abe31f555ec3b363b5b8c1d003230053b6 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 13:56:05 +0000
Subject: sh_eth: get SH7619 support out of #ifdef

Get  the SH7619 data in the driver out of #ifdef by adding "sh7619-ether" to the
platform driver's ID table. Change the Ether platform device's name  in  the SH
platform code accordingly.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sh/kernel/cpu/sh2/setup-sh7619.c b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
index e0b740c..bb11e19 100644
--- a/arch/sh/kernel/cpu/sh2/setup-sh7619.c
+++ b/arch/sh/kernel/cpu/sh2/setup-sh7619.c
@@ -124,8 +124,8 @@ static struct resource eth_resources[] = {
 };
 
 static struct platform_device eth_device = {
-	.name = "sh-eth",
-	.id	= -1,
+	.name = "sh7619-ether",
+	.id = -1,
 	.dev = {
 		.platform_data = (void *)1,
 	},
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index f26546a..e0568a9 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -680,9 +680,9 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.tsu		= 1,
 	.select_mii	= 1,
 };
+#endif
 
-#elif defined(CONFIG_CPU_SUBTYPE_SH7619)
-static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+static struct sh_eth_cpu_data sh7619_data = {
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
 
 	.apr		= 1,
@@ -690,7 +690,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.tpauser	= 1,
 	.hw_swap	= 1,
 };
-#endif
 
 static struct sh_eth_cpu_data sh771x_data = {
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
@@ -2700,6 +2699,7 @@ static const struct dev_pm_ops sh_eth_dev_pm_ops = {
 #endif
 
 static struct platform_device_id sh_eth_id_table[] = {
+	{ "sh7619-ether", (kernel_ulong_t)&sh7619_data },
 	{ "sh771x-ether", (kernel_ulong_t)&sh771x_data },
 	{ CARDNAME },
 	{ }
-- 
cgit v0.10.2


From e5c9b4cd665106d9b5397114ea81a53059410b6a Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 13:57:12 +0000
Subject: sh_eth: get R8A7740 support out of #ifdef

Get the R8A7740 code/data in the driver out of #ifdef by adding "r8a7740-gether"
to the platform driver's ID table.  Change the GEther platform device's name in
the ARM platform code accordingly.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index b85b288..2b04c80 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
@@ -377,7 +377,7 @@ static struct resource sh_eth_resources[] = {
 };
 
 static struct platform_device sh_eth_device = {
-	.name = "sh-eth",
+	.name = "r8a7740-gether",
 	.id = -1,
 	.dev = {
 		.platform_data = &sh_eth_platdata,
diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index c0d39aa..ae93f94 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -591,7 +591,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("e6860000.sdhi",          &mstp_clks[MSTP313]),
 	CLKDEV_DEV_ID("sh_mmcif",		&mstp_clks[MSTP312]),
 	CLKDEV_DEV_ID("e6bd0000.mmcif",         &mstp_clks[MSTP312]),
-	CLKDEV_DEV_ID("sh-eth",			&mstp_clks[MSTP309]),
+	CLKDEV_DEV_ID("r8a7740-gether",		&mstp_clks[MSTP309]),
 
 	CLKDEV_DEV_ID("sh_mobile_sdhi.2",	&mstp_clks[MSTP415]),
 	CLKDEV_DEV_ID("e6870000.sdhi",          &mstp_clks[MSTP415]),
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index e0568a9..da620ec 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -619,11 +619,9 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.irq_flags	= IRQF_SHARED,
 #endif
 };
+#endif
 
-
-#elif defined(CONFIG_ARCH_R8A7740)
-
-static void sh_eth_chip_reset(struct net_device *ndev)
+static void sh_eth_chip_reset_r8a7740(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
@@ -634,7 +632,7 @@ static void sh_eth_chip_reset(struct net_device *ndev)
 	sh_eth_select_mii(ndev);
 }
 
-static void sh_eth_set_rate(struct net_device *ndev)
+static void sh_eth_set_rate_gether(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
@@ -654,10 +652,10 @@ static void sh_eth_set_rate(struct net_device *ndev)
 }
 
 /* R8A7740 */
-static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
-	.chip_reset	= sh_eth_chip_reset,
+static struct sh_eth_cpu_data r8a7740_data = {
+	.chip_reset	= sh_eth_chip_reset_r8a7740,
 	.set_duplex	= sh_eth_set_duplex,
-	.set_rate	= sh_eth_set_rate,
+	.set_rate	= sh_eth_set_rate_gether,
 
 	.ecsr_value	= ECSR_ICD | ECSR_MPD,
 	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
@@ -680,7 +678,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.tsu		= 1,
 	.select_mii	= 1,
 };
-#endif
 
 static struct sh_eth_cpu_data sh7619_data = {
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
@@ -2701,6 +2698,7 @@ static const struct dev_pm_ops sh_eth_dev_pm_ops = {
 static struct platform_device_id sh_eth_id_table[] = {
 	{ "sh7619-ether", (kernel_ulong_t)&sh7619_data },
 	{ "sh771x-ether", (kernel_ulong_t)&sh771x_data },
+	{ "r8a7740-gether", (kernel_ulong_t)&r8a7740_data },
 	{ CARDNAME },
 	{ }
 };
-- 
cgit v0.10.2


From f5d12767c8fd77e29d3d6771de59fd9ac3e540bb Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 13:58:18 +0000
Subject: sh_eth: get SH77{34|63} support out of #ifdef

Get the SH77{34|63} specific code/data in the driver out of #ifdef by adding
"sh7734-gether" and "sh7763-gether" to the platform driver's ID table.  Note
that we have to split the 'struct sh_eth_cpu_data' instance into two due to
#ifdef inside it; note that we can kill the duplicate sh_eth_set_rate_gether().
Change the GEther platform device's name in the SH platform code accordingly.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sh/boards/board-espt.c b/arch/sh/boards/board-espt.c
index d71a0bc..4d94dff 100644
--- a/arch/sh/boards/board-espt.c
+++ b/arch/sh/boards/board-espt.c
@@ -85,7 +85,7 @@ static struct sh_eth_plat_data sh7763_eth_pdata = {
 };
 
 static struct platform_device espt_eth_device = {
-	.name       = "sh-eth",
+	.name       = "sh7763-gether",
 	.resource   = sh_eth_resources,
 	.num_resources  = ARRAY_SIZE(sh_eth_resources),
 	.dev        = {
diff --git a/arch/sh/boards/mach-sh7763rdp/setup.c b/arch/sh/boards/mach-sh7763rdp/setup.c
index b7c7529..50ba481 100644
--- a/arch/sh/boards/mach-sh7763rdp/setup.c
+++ b/arch/sh/boards/mach-sh7763rdp/setup.c
@@ -93,7 +93,7 @@ static struct sh_eth_plat_data sh7763_eth_pdata = {
 };
 
 static struct platform_device sh7763rdp_eth_device = {
-	.name       = "sh-eth",
+	.name       = "sh7763-gether",
 	.resource   = sh_eth_resources,
 	.num_resources  = ARRAY_SIZE(sh_eth_resources),
 	.dev        = {
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7734.c b/arch/sh/kernel/cpu/sh4a/clock-sh7734.c
index deb683a..ed95015 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7734.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7734.c
@@ -238,7 +238,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("adc0", &mstp_clks[MSTP313]),
 	CLKDEV_CON_ID("mtu0", &mstp_clks[MSTP312]),
 	CLKDEV_CON_ID("iebus0", &mstp_clks[MSTP304]),
-	CLKDEV_DEV_ID("sh-eth.0", &mstp_clks[MSTP114]),
+	CLKDEV_DEV_ID("sh7734-gether.0", &mstp_clks[MSTP114]),
 	CLKDEV_CON_ID("rtc0", &mstp_clks[MSTP303]),
 	CLKDEV_CON_ID("hif0", &mstp_clks[MSTP302]),
 	CLKDEV_CON_ID("stif0", &mstp_clks[MSTP301]),
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index da620ec..6d44a43 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -556,8 +556,7 @@ static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp)
 	else
 		return &sh_eth_my_cpu_data;
 }
-
-#elif defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763)
+#endif
 
 static void sh_eth_chip_reset(struct net_device *ndev)
 {
@@ -568,7 +567,7 @@ static void sh_eth_chip_reset(struct net_device *ndev)
 	mdelay(1);
 }
 
-static void sh_eth_set_rate(struct net_device *ndev)
+static void sh_eth_set_rate_gether(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
@@ -587,11 +586,40 @@ static void sh_eth_set_rate(struct net_device *ndev)
 	}
 }
 
-/* sh7763 */
-static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+/* SH7734 */
+static struct sh_eth_cpu_data sh7734_data = {
 	.chip_reset	= sh_eth_chip_reset,
 	.set_duplex	= sh_eth_set_duplex,
-	.set_rate	= sh_eth_set_rate,
+	.set_rate	= sh_eth_set_rate_gether,
+
+	.ecsr_value	= ECSR_ICD | ECSR_MPD,
+	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
+	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
+
+	.tx_check	= EESR_TC1 | EESR_FTC,
+	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \
+			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \
+			  EESR_ECI,
+	.tx_error_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \
+			  EESR_TFE,
+
+	.apr		= 1,
+	.mpr		= 1,
+	.tpauser	= 1,
+	.bculr		= 1,
+	.hw_swap	= 1,
+	.no_trimd	= 1,
+	.no_ade		= 1,
+	.tsu		= 1,
+	.hw_crc		= 1,
+	.select_mii	= 1,
+};
+
+/* SH7763 */
+static struct sh_eth_cpu_data sh7763_data = {
+	.chip_reset	= sh_eth_chip_reset,
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_gether,
 
 	.ecsr_value	= ECSR_ICD | ECSR_MPD,
 	.ecsipr_value	= ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
@@ -612,14 +640,8 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.no_trimd	= 1,
 	.no_ade		= 1,
 	.tsu		= 1,
-#if defined(CONFIG_CPU_SUBTYPE_SH7734)
-	.hw_crc     = 1,
-	.select_mii = 1,
-#else
 	.irq_flags	= IRQF_SHARED,
-#endif
 };
-#endif
 
 static void sh_eth_chip_reset_r8a7740(struct net_device *ndev)
 {
@@ -632,25 +654,6 @@ static void sh_eth_chip_reset_r8a7740(struct net_device *ndev)
 	sh_eth_select_mii(ndev);
 }
 
-static void sh_eth_set_rate_gether(struct net_device *ndev)
-{
-	struct sh_eth_private *mdp = netdev_priv(ndev);
-
-	switch (mdp->speed) {
-	case 10: /* 10BASE */
-		sh_eth_write(ndev, GECMR_10, GECMR);
-		break;
-	case 100:/* 100BASE */
-		sh_eth_write(ndev, GECMR_100, GECMR);
-		break;
-	case 1000: /* 1000BASE */
-		sh_eth_write(ndev, GECMR_1000, GECMR);
-		break;
-	default:
-		break;
-	}
-}
-
 /* R8A7740 */
 static struct sh_eth_cpu_data r8a7740_data = {
 	.chip_reset	= sh_eth_chip_reset_r8a7740,
@@ -2698,6 +2701,8 @@ static const struct dev_pm_ops sh_eth_dev_pm_ops = {
 static struct platform_device_id sh_eth_id_table[] = {
 	{ "sh7619-ether", (kernel_ulong_t)&sh7619_data },
 	{ "sh771x-ether", (kernel_ulong_t)&sh771x_data },
+	{ "sh7734-gether", (kernel_ulong_t)&sh7734_data },
+	{ "sh7763-gether", (kernel_ulong_t)&sh7763_data },
 	{ "r8a7740-gether", (kernel_ulong_t)&r8a7740_data },
 	{ CARDNAME },
 	{ }
-- 
cgit v0.10.2


From 24549e2a0f33628b5160eac16c6aebf1cfaf22f1 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 13:59:21 +0000
Subject: sh_eth: get SH7757 support out of #ifdef

Get the SH7757 code/data in the driver out of #ifdef by adding "sh7757-ether"
and "sh7757-gether" to the platform driver's ID table.  Note that we can remove
SH_ETH_HAS_BOTH_MODULES and sh_eth_get_cpu_data().
Change the Ether/GEther platform devices' names in the SH platform code
accordingly.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sh/boards/board-sh7757lcr.c b/arch/sh/boards/board-sh7757lcr.c
index 41f8670..4f114d1 100644
--- a/arch/sh/boards/board-sh7757lcr.c
+++ b/arch/sh/boards/board-sh7757lcr.c
@@ -82,7 +82,7 @@ static struct sh_eth_plat_data sh7757_eth0_pdata = {
 };
 
 static struct platform_device sh7757_eth0_device = {
-	.name		= "sh-eth",
+	.name		= "sh7757-ether",
 	.resource	= sh_eth0_resources,
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(sh_eth0_resources),
@@ -111,7 +111,7 @@ static struct sh_eth_plat_data sh7757_eth1_pdata = {
 };
 
 static struct platform_device sh7757_eth1_device = {
-	.name		= "sh-eth",
+	.name		= "sh7757-ether",
 	.resource	= sh_eth1_resources,
 	.id		= 1,
 	.num_resources	= ARRAY_SIZE(sh_eth1_resources),
@@ -157,7 +157,7 @@ static struct sh_eth_plat_data sh7757_eth_giga0_pdata = {
 };
 
 static struct platform_device sh7757_eth_giga0_device = {
-	.name		= "sh-eth",
+	.name		= "sh7757-gether",
 	.resource	= sh_eth_giga0_resources,
 	.id		= 2,
 	.num_resources	= ARRAY_SIZE(sh_eth_giga0_resources),
@@ -192,7 +192,7 @@ static struct sh_eth_plat_data sh7757_eth_giga1_pdata = {
 };
 
 static struct platform_device sh7757_eth_giga1_device = {
-	.name		= "sh-eth",
+	.name		= "sh7757-gether",
 	.resource	= sh_eth_giga1_resources,
 	.id		= 3,
 	.num_resources	= ARRAY_SIZE(sh_eth_giga1_resources),
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 6d44a43..9860fc0 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -431,10 +431,9 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.rpadir		= 1,
 	.rpadir_value	= 0x00020000, /* NET_IP_ALIGN assumed to be 2 */
 };
-#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
-#define SH_ETH_HAS_BOTH_MODULES	1
+#endif
 
-static void sh_eth_set_rate(struct net_device *ndev)
+static void sh_eth_set_rate_sh7757(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
@@ -451,9 +450,9 @@ static void sh_eth_set_rate(struct net_device *ndev)
 }
 
 /* SH7757 */
-static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
-	.set_duplex		= sh_eth_set_duplex,
-	.set_rate		= sh_eth_set_rate,
+static struct sh_eth_cpu_data sh7757_data = {
+	.set_duplex	= sh_eth_set_duplex,
+	.set_rate	= sh_eth_set_rate_sh7757,
 
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
 	.rmcr_value	= 0x00000001,
@@ -518,7 +517,7 @@ static void sh_eth_set_rate_giga(struct net_device *ndev)
 }
 
 /* SH7757(GETHERC) */
-static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = {
+static struct sh_eth_cpu_data sh7757_data_giga = {
 	.chip_reset	= sh_eth_chip_reset_giga,
 	.set_duplex	= sh_eth_set_duplex,
 	.set_rate	= sh_eth_set_rate_giga,
@@ -549,15 +548,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = {
 	.tsu		= 1,
 };
 
-static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp)
-{
-	if (sh_eth_is_gether(mdp))
-		return &sh_eth_my_cpu_data_giga;
-	else
-		return &sh_eth_my_cpu_data;
-}
-#endif
-
 static void sh_eth_chip_reset(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -2577,11 +2567,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	mdp->reg_offset = sh_eth_get_register_offset(pd->register_type);
 
 	/* set cpu data */
-#if defined(SH_ETH_HAS_BOTH_MODULES)
-	mdp->cd = sh_eth_get_cpu_data(mdp);
-#else
 	mdp->cd = &sh_eth_my_cpu_data;
-#endif
 	if (id->driver_data)
 		mdp->cd = (struct sh_eth_cpu_data *)id->driver_data;
 	sh_eth_set_default_cpu_data(mdp->cd);
@@ -2702,6 +2688,8 @@ static struct platform_device_id sh_eth_id_table[] = {
 	{ "sh7619-ether", (kernel_ulong_t)&sh7619_data },
 	{ "sh771x-ether", (kernel_ulong_t)&sh771x_data },
 	{ "sh7734-gether", (kernel_ulong_t)&sh7734_data },
+	{ "sh7757-ether", (kernel_ulong_t)&sh7757_data },
+	{ "sh7757-gether", (kernel_ulong_t)&sh7757_data_giga },
 	{ "sh7763-gether", (kernel_ulong_t)&sh7763_data },
 	{ "r8a7740-gether", (kernel_ulong_t)&r8a7740_data },
 	{ CARDNAME },
-- 
cgit v0.10.2


From 9c3beaabb951d672b1534c7f56f84054b088f879 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 14:03:37 +0000
Subject: sh_eth: get SH7724 support out of #ifdef

Get the SH7724 code/data in the driver out of #ifdef by adding "r8a7724-ether"
to the platform driver's ID table. Change the Ether platform device's name in
the SH platform code accordingly.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 764530c..61fade0 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -165,8 +165,8 @@ static struct sh_eth_plat_data sh_eth_plat = {
 };
 
 static struct platform_device sh_eth_device = {
-	.name = "sh-eth",
-	.id	= 0,
+	.name = "sh7724-ether",
+	.id = 0,
 	.dev = {
 		.platform_data = &sh_eth_plat,
 	},
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 4010e63..b70180e 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -380,8 +380,8 @@ static struct sh_eth_plat_data sh_eth_plat = {
 };
 
 static struct platform_device sh_eth_device = {
-	.name = "sh-eth",
-	.id	= 0,
+	.name = "sh7724-ether",
+	.id = 0,
 	.dev = {
 		.platform_data = &sh_eth_plat,
 	},
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
index 5f30f80..0128af3 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c
@@ -329,7 +329,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[HWBLK_IIC0]),
 	CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[HWBLK_IIC1]),
 	CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[HWBLK_MMC]),
-	CLKDEV_DEV_ID("sh-eth.0", &mstp_clks[HWBLK_ETHER]),
+	CLKDEV_DEV_ID("sh7724-ether.0", &mstp_clks[HWBLK_ETHER]),
 	CLKDEV_CON_ID("atapi0", &mstp_clks[HWBLK_ATAPI]),
 	CLKDEV_CON_ID("tpu0", &mstp_clks[HWBLK_TPU]),
 	CLKDEV_CON_ID("irda0", &mstp_clks[HWBLK_IRDA]),
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 9860fc0..143e22e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -392,9 +392,9 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.tpauser	= 1,
 	.hw_swap	= 1,
 };
-#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
+#endif
 
-static void sh_eth_set_rate(struct net_device *ndev)
+static void sh_eth_set_rate_sh7724(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
@@ -411,9 +411,9 @@ static void sh_eth_set_rate(struct net_device *ndev)
 }
 
 /* SH7724 */
-static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+static struct sh_eth_cpu_data sh7724_data = {
 	.set_duplex	= sh_eth_set_duplex,
-	.set_rate	= sh_eth_set_rate,
+	.set_rate	= sh_eth_set_rate_sh7724,
 
 	.ecsr_value	= ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD,
 	.ecsipr_value	= ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP,
@@ -431,7 +431,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.rpadir		= 1,
 	.rpadir_value	= 0x00020000, /* NET_IP_ALIGN assumed to be 2 */
 };
-#endif
 
 static void sh_eth_set_rate_sh7757(struct net_device *ndev)
 {
@@ -2687,6 +2686,7 @@ static const struct dev_pm_ops sh_eth_dev_pm_ops = {
 static struct platform_device_id sh_eth_id_table[] = {
 	{ "sh7619-ether", (kernel_ulong_t)&sh7619_data },
 	{ "sh771x-ether", (kernel_ulong_t)&sh771x_data },
+	{ "sh7724-ether", (kernel_ulong_t)&sh7724_data },
 	{ "sh7734-gether", (kernel_ulong_t)&sh7734_data },
 	{ "sh7757-ether", (kernel_ulong_t)&sh7757_data },
 	{ "sh7757-gether", (kernel_ulong_t)&sh7757_data_giga },
-- 
cgit v0.10.2


From 589ebdef7e3107401bf96a9c660753d397329ee9 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 14:05:59 +0000
Subject: sh_eth: get R8A777x support out of #ifdef

Get the R-Car code/data in the driver out of #ifdef by adding "r8a777x-ether" to
the platfrom driver's  ID table; since it's the last #ifdef, we remove CARDNAME
from the  ID table and no longer check  the driver data before  assigning it to
'mdp->cd'...
Change the Ether platform device's name in the ARM platform code accordingly.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/mach-shmobile/clock-r8a7778.c b/arch/arm/mach-shmobile/clock-r8a7778.c
index cd68552..9614b07 100644
--- a/arch/arm/mach-shmobile/clock-r8a7778.c
+++ b/arch/arm/mach-shmobile/clock-r8a7778.c
@@ -77,7 +77,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 
 static struct clk_lookup lookups[] = {
 	/* MSTP32 clocks */
-	CLKDEV_DEV_ID("sh-eth",	&mstp_clks[MSTP114]), /* Ether */
+	CLKDEV_DEV_ID("r8a777x-ether", &mstp_clks[MSTP114]), /* Ether */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP026]), /* SCIF0 */
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP025]), /* SCIF1 */
 	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP024]), /* SCIF2 */
diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c
index 31d5cd4..2f7e524 100644
--- a/arch/arm/mach-shmobile/clock-r8a7779.c
+++ b/arch/arm/mach-shmobile/clock-r8a7779.c
@@ -163,7 +163,7 @@ static struct clk_lookup lookups[] = {
 	/* MSTP32 clocks */
 	CLKDEV_DEV_ID("sata_rcar", &mstp_clks[MSTP115]), /* SATA */
 	CLKDEV_DEV_ID("fc600000.sata", &mstp_clks[MSTP115]), /* SATA w/DT */
-	CLKDEV_DEV_ID("sh-eth", &mstp_clks[MSTP114]), /* Ether */
+	CLKDEV_DEV_ID("r8a777x-ether", &mstp_clks[MSTP114]), /* Ether */
 	CLKDEV_DEV_ID("ehci-platform.1", &mstp_clks[MSTP101]), /* USB EHCI port2 */
 	CLKDEV_DEV_ID("ohci-platform.1", &mstp_clks[MSTP101]), /* USB OHCI port2 */
 	CLKDEV_DEV_ID("ehci-platform.0", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 143e22e..cff6971 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -356,8 +356,7 @@ static void __maybe_unused sh_eth_set_duplex(struct net_device *ndev)
 }
 
 /* There is CPU dependent code */
-#if defined(CONFIG_ARCH_R8A7778) || defined(CONFIG_ARCH_R8A7779)
-static void sh_eth_set_rate(struct net_device *ndev)
+static void sh_eth_set_rate_r8a777x(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
@@ -374,9 +373,9 @@ static void sh_eth_set_rate(struct net_device *ndev)
 }
 
 /* R8A7778/9 */
-static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+static struct sh_eth_cpu_data r8a777x_data = {
 	.set_duplex	= sh_eth_set_duplex,
-	.set_rate	= sh_eth_set_rate,
+	.set_rate	= sh_eth_set_rate_r8a777x,
 
 	.ecsr_value	= ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD,
 	.ecsipr_value	= ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP,
@@ -392,7 +391,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
 	.tpauser	= 1,
 	.hw_swap	= 1,
 };
-#endif
 
 static void sh_eth_set_rate_sh7724(struct net_device *ndev)
 {
@@ -2566,9 +2564,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	mdp->reg_offset = sh_eth_get_register_offset(pd->register_type);
 
 	/* set cpu data */
-	mdp->cd = &sh_eth_my_cpu_data;
-	if (id->driver_data)
-		mdp->cd = (struct sh_eth_cpu_data *)id->driver_data;
+	mdp->cd = (struct sh_eth_cpu_data *)id->driver_data;
 	sh_eth_set_default_cpu_data(mdp->cd);
 
 	/* set function */
@@ -2692,7 +2688,7 @@ static struct platform_device_id sh_eth_id_table[] = {
 	{ "sh7757-gether", (kernel_ulong_t)&sh7757_data_giga },
 	{ "sh7763-gether", (kernel_ulong_t)&sh7763_data },
 	{ "r8a7740-gether", (kernel_ulong_t)&r8a7740_data },
-	{ CARDNAME },
+	{ "r8a777x-ether", (kernel_ulong_t)&r8a777x_data },
 	{ }
 };
 MODULE_DEVICE_TABLE(platform, sh_eth_id_table);
-- 
cgit v0.10.2


From eb770bf430bc1d4e1d23af353a80cfae2b237e66 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Fri, 7 Jun 2013 14:07:13 +0000
Subject: sh_eth: remove dependencies from Kconfig

Since dependence on the certain SoCs is no  longer  necessary to compile the
driver, remove the dependency list from its Kconfig entry which is a popular
demand anyway...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig
index bed9841..267eac0 100644
--- a/drivers/net/ethernet/renesas/Kconfig
+++ b/drivers/net/ethernet/renesas/Kconfig
@@ -4,12 +4,6 @@
 
 config SH_ETH
 	tristate "Renesas SuperH Ethernet support"
-	depends on (SUPERH || ARCH_SHMOBILE) && \
-		(CPU_SUBTYPE_SH7710 || CPU_SUBTYPE_SH7712 || \
-		 CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7619 || \
-		 CPU_SUBTYPE_SH7724 || CPU_SUBTYPE_SH7734 || \
-		 CPU_SUBTYPE_SH7757 || ARCH_R8A7740 || \
-		 ARCH_R8A7778 || ARCH_R8A7779)
 	select CRC32
 	select NET_CORE
 	select MII
-- 
cgit v0.10.2


From e403d295817cf9f8be3110eb7ee1a03981287495 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 7 Jun 2013 23:40:41 -0700
Subject: sh_eth: Fix warnings on 64-bit.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Don't cast a plain integer to a pointer.

drivers/net/ethernet/renesas/sh_eth.c: In function ‘sh_eth_chip_reset_giga’:
drivers/net/ethernet/renesas/sh_eth.c:482:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
drivers/net/ethernet/renesas/sh_eth.c:483:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
drivers/net/ethernet/renesas/sh_eth.c:492:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
drivers/net/ethernet/renesas/sh_eth.c:493:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index cff6971..43d8490 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -469,7 +469,7 @@ static struct sh_eth_cpu_data sh7757_data = {
 	.rpadir_value   = 2 << 16,
 };
 
-#define SH_GIGA_ETH_BASE	0xfee00000
+#define SH_GIGA_ETH_BASE	0xfee00000UL
 #define GIGA_MALR(port)		(SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c8)
 #define GIGA_MAHR(port)		(SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c0)
 static void sh_eth_chip_reset_giga(struct net_device *ndev)
-- 
cgit v0.10.2


From ed0483fa06e0efb86a82e382a00dbad02b62807c Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 5 Jun 2013 23:54:33 +0000
Subject: macvtap: fix a possible race between queue selection and changing
 queues

Complier may generate codes that re-read the vlan->numvtaps during
macvtap_get_queue(). This may lead a race if vlan->numvtaps were changed in the
same time and which can lead unexpected result (e.g. very huge value).

We need prevent the compiler from generating such codes by adding an
ACCESS_ONCE() to make sure vlan->numvtaps were only read once.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 68efb91..5e485e3 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -172,7 +172,7 @@ static struct macvtap_queue *macvtap_get_queue(struct net_device *dev,
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	struct macvtap_queue *tap = NULL;
-	int numvtaps = vlan->numvtaps;
+	int numvtaps = ACCESS_ONCE(vlan->numvtaps);
 	__u32 rxq;
 
 	if (!numvtaps)
-- 
cgit v0.10.2


From 89cee917deb5bf0dc9da269a38622588d06cb6be Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 5 Jun 2013 23:54:34 +0000
Subject: macvtap: do not add self to waitqueue if doing a nonblock read

There's no need to add self to waitqueue if doing a nonblock read. This could
help to avoid the spinlock contention.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 5e485e3..8949631 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -845,7 +845,9 @@ static ssize_t macvtap_do_read(struct macvtap_queue *q, struct kiocb *iocb,
 	ssize_t ret = 0;
 
 	while (len) {
-		prepare_to_wait(sk_sleep(&q->sk), &wait, TASK_INTERRUPTIBLE);
+		if (!noblock)
+			prepare_to_wait(sk_sleep(&q->sk), &wait,
+					TASK_INTERRUPTIBLE);
 
 		/* Read frames from the queue */
 		skb = skb_dequeue(&q->sk.sk_receive_queue);
@@ -867,7 +869,8 @@ static ssize_t macvtap_do_read(struct macvtap_queue *q, struct kiocb *iocb,
 		break;
 	}
 
-	finish_wait(sk_sleep(&q->sk), &wait);
+	if (!noblock)
+		finish_wait(sk_sleep(&q->sk), &wait);
 	return ret;
 }
 
-- 
cgit v0.10.2


From 1d2f41ed23343e083566339574807ca7ea75dbba Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 5 Jun 2013 23:54:35 +0000
Subject: macvlan: switch to use IS_ENABLED()

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index 84dde1d..e47ad46 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -8,7 +8,7 @@
 #include <net/netlink.h>
 #include <linux/u64_stats_sync.h>
 
-#if defined(CONFIG_MACVTAP) || defined(CONFIG_MACVTAP_MODULE)
+#if IS_ENABLED(CONFIG_MACVTAP)
 struct socket *macvtap_get_socket(struct file *);
 #else
 #include <linux/err.h>
-- 
cgit v0.10.2


From 8f475a318aaa37f0168a8ab99f2faa251e5638de Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 5 Jun 2013 23:54:36 +0000
Subject: macvtap: introduce macvtap_get_vlan()

Factor out the device holding logic to a macvtap_get_vlan(), this will be also
used by multiqueue API.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 8949631..d18130b 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -893,6 +893,24 @@ out:
 	return ret;
 }
 
+static struct macvlan_dev *macvtap_get_vlan(struct macvtap_queue *q)
+{
+	struct macvlan_dev *vlan;
+
+	rcu_read_lock_bh();
+	vlan = rcu_dereference_bh(q->vlan);
+	if (vlan)
+		dev_hold(vlan->dev);
+	rcu_read_unlock_bh();
+
+	return vlan;
+}
+
+static void macvtap_put_vlan(struct macvlan_dev *vlan)
+{
+	dev_put(vlan->dev);
+}
+
 /*
  * provide compatibility with generic tun/tap interface
  */
@@ -924,12 +942,7 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 		return ret;
 
 	case TUNGETIFF:
-		rcu_read_lock_bh();
-		vlan = rcu_dereference_bh(q->vlan);
-		if (vlan)
-			dev_hold(vlan->dev);
-		rcu_read_unlock_bh();
-
+		vlan = macvtap_get_vlan(q);
 		if (!vlan)
 			return -ENOLINK;
 
@@ -937,7 +950,7 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 		if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
 		    put_user(q->flags, &ifr->ifr_flags))
 			ret = -EFAULT;
-		dev_put(vlan->dev);
+		macvtap_put_vlan(vlan);
 		return ret;
 
 	case TUNGETFEATURES:
-- 
cgit v0.10.2


From f0afce01aa639e5164cf73f063b81a8b95619c3a Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 5 Jun 2013 23:54:37 +0000
Subject: macvlan: change the max number of queues to 16

Macvtap should be at least compatible with tap, so change the max number to 16.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index e47ad46..62d8bda 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -50,7 +50,7 @@ struct macvlan_pcpu_stats {
  * Maximum times a macvtap device can be opened. This can be used to
  * configure the number of receive queue, e.g. for multiqueue virtio.
  */
-#define MAX_MACVTAP_QUEUES	(NR_CPUS < 16 ? NR_CPUS : 16)
+#define MAX_MACVTAP_QUEUES	16
 
 #define MACVLAN_MC_FILTER_BITS	8
 #define MACVLAN_MC_FILTER_SZ	(1 << MACVLAN_MC_FILTER_BITS)
-- 
cgit v0.10.2


From 376b1aabe1f53aad80615d05ddb8c43670be6a5c Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 5 Jun 2013 23:54:38 +0000
Subject: macvtap: eliminate linear search

Linear search were used in both get_slot() and macvtap_get_queue(), this is
because:

- macvtap didn't reshuffle the array of taps when create or destroy a queue, so
  when adding a new queue, macvtap must do linear search to find a location for
  the new queue. This will also complicate the TUNSETQUEUE implementation for
  multiqueue API.
- the queue itself didn't track the queue index, so the we must do a linear
  search in the array to find the location of a existed queue.

The solution is straightforward: reshuffle the array and introduce a queue_index
to macvtap_queue.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index d18130b..5ccba99 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -44,6 +44,7 @@ struct macvtap_queue {
 	struct macvlan_dev __rcu *vlan;
 	struct file *file;
 	unsigned int flags;
+	u16 queue_index;
 };
 
 static struct proto macvtap_proto = {
@@ -84,30 +85,10 @@ static const struct proto_ops macvtap_socket_ops;
  */
 static DEFINE_SPINLOCK(macvtap_lock);
 
-/*
- * get_slot: return a [unused/occupied] slot in vlan->taps[]:
- *	- if 'q' is NULL, return the first empty slot;
- *	- otherwise, return the slot this pointer occupies.
- */
-static int get_slot(struct macvlan_dev *vlan, struct macvtap_queue *q)
-{
-	int i;
-
-	for (i = 0; i < MAX_MACVTAP_QUEUES; i++) {
-		if (rcu_dereference_protected(vlan->taps[i],
-					      lockdep_is_held(&macvtap_lock)) == q)
-			return i;
-	}
-
-	/* Should never happen */
-	BUG_ON(1);
-}
-
 static int macvtap_set_queue(struct net_device *dev, struct file *file,
 				struct macvtap_queue *q)
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
-	int index;
 	int err = -EBUSY;
 
 	spin_lock(&macvtap_lock);
@@ -115,12 +96,12 @@ static int macvtap_set_queue(struct net_device *dev, struct file *file,
 		goto out;
 
 	err = 0;
-	index = get_slot(vlan, NULL);
 	rcu_assign_pointer(q->vlan, vlan);
-	rcu_assign_pointer(vlan->taps[index], q);
+	rcu_assign_pointer(vlan->taps[vlan->numvtaps], q);
 	sock_hold(&q->sk);
 
 	q->file = file;
+	q->queue_index = vlan->numvtaps;
 	file->private_data = q;
 
 	vlan->numvtaps++;
@@ -140,15 +121,22 @@ out:
  */
 static void macvtap_put_queue(struct macvtap_queue *q)
 {
+	struct macvtap_queue *nq;
 	struct macvlan_dev *vlan;
 
 	spin_lock(&macvtap_lock);
 	vlan = rcu_dereference_protected(q->vlan,
 					 lockdep_is_held(&macvtap_lock));
 	if (vlan) {
-		int index = get_slot(vlan, q);
+		int index = q->queue_index;
+		BUG_ON(index >= vlan->numvtaps);
+
+		nq = rcu_dereference_protected(vlan->taps[vlan->numvtaps - 1],
+					       lockdep_is_held(&macvtap_lock));
+		rcu_assign_pointer(vlan->taps[index], nq);
+		nq->queue_index = index;
 
-		RCU_INIT_POINTER(vlan->taps[index], NULL);
+		RCU_INIT_POINTER(vlan->taps[vlan->numvtaps - 1], NULL);
 		RCU_INIT_POINTER(q->vlan, NULL);
 		sock_put(&q->sk);
 		--vlan->numvtaps;
@@ -182,8 +170,7 @@ static struct macvtap_queue *macvtap_get_queue(struct net_device *dev,
 	rxq = skb_get_rxhash(skb);
 	if (rxq) {
 		tap = rcu_dereference(vlan->taps[rxq % numvtaps]);
-		if (tap)
-			goto out;
+		goto out;
 	}
 
 	if (likely(skb_rx_queue_recorded(skb))) {
@@ -193,17 +180,10 @@ static struct macvtap_queue *macvtap_get_queue(struct net_device *dev,
 			rxq -= numvtaps;
 
 		tap = rcu_dereference(vlan->taps[rxq]);
-		if (tap)
-			goto out;
-	}
-
-	/* Everything failed - find first available queue */
-	for (rxq = 0; rxq < MAX_MACVTAP_QUEUES; rxq++) {
-		tap = rcu_dereference(vlan->taps[rxq]);
-		if (tap)
-			break;
+		goto out;
 	}
 
+	tap = rcu_dereference(vlan->taps[0]);
 out:
 	return tap;
 }
@@ -219,19 +199,15 @@ static void macvtap_del_queues(struct net_device *dev)
 	struct macvtap_queue *q, *qlist[MAX_MACVTAP_QUEUES];
 	int i, j = 0;
 
-	/* macvtap_put_queue can free some slots, so go through all slots */
 	spin_lock(&macvtap_lock);
-	for (i = 0; i < MAX_MACVTAP_QUEUES && vlan->numvtaps; i++) {
+	for (i = 0; i < vlan->numvtaps; i++) {
 		q = rcu_dereference_protected(vlan->taps[i],
 					      lockdep_is_held(&macvtap_lock));
-		if (q) {
-			qlist[j++] = q;
-			RCU_INIT_POINTER(vlan->taps[i], NULL);
-			RCU_INIT_POINTER(q->vlan, NULL);
-			vlan->numvtaps--;
-		}
+		BUG_ON(q == NULL);
+		qlist[j++] = q;
+		RCU_INIT_POINTER(vlan->taps[i], NULL);
+		RCU_INIT_POINTER(q->vlan, NULL);
 	}
-	BUG_ON(vlan->numvtaps != 0);
 	/* guarantee that any future macvtap_set_queue will fail */
 	vlan->numvtaps = MAX_MACVTAP_QUEUES;
 	spin_unlock(&macvtap_lock);
-- 
cgit v0.10.2


From 815f236d622721b54f3963ba59dad98b02cdeabf Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 5 Jun 2013 23:54:39 +0000
Subject: macvtap: add TUNSETQUEUE ioctl

This patch adds TUNSETQUEUE ioctl to let userspace can temporarily disable or
enable a queue of macvtap. This is used to be compatible at API layer of tuntap
to simplify the userspace to manage the queues. This is done through introducing
a linked list to track all taps while using vlan->taps array to only track
active taps.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 5ccba99..d2d1d55 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -45,6 +45,8 @@ struct macvtap_queue {
 	struct file *file;
 	unsigned int flags;
 	u16 queue_index;
+	bool enabled;
+	struct list_head next;
 };
 
 static struct proto macvtap_proto = {
@@ -85,14 +87,36 @@ static const struct proto_ops macvtap_socket_ops;
  */
 static DEFINE_SPINLOCK(macvtap_lock);
 
-static int macvtap_set_queue(struct net_device *dev, struct file *file,
+static int macvtap_enable_queue(struct net_device *dev, struct file *file,
 				struct macvtap_queue *q)
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
+	int err = -EINVAL;
+
+	spin_lock(&macvtap_lock);
+
+	if (q->enabled)
+		goto out;
+
+	err = 0;
+	rcu_assign_pointer(vlan->taps[vlan->numvtaps], q);
+	q->queue_index = vlan->numvtaps;
+	q->enabled = true;
+
+	vlan->numvtaps++;
+out:
+	spin_unlock(&macvtap_lock);
+	return err;
+}
+
+static int macvtap_set_queue(struct net_device *dev, struct file *file,
+			     struct macvtap_queue *q)
+{
+	struct macvlan_dev *vlan = netdev_priv(dev);
 	int err = -EBUSY;
 
 	spin_lock(&macvtap_lock);
-	if (vlan->numvtaps == MAX_MACVTAP_QUEUES)
+	if (vlan->numqueues == MAX_MACVTAP_QUEUES)
 		goto out;
 
 	err = 0;
@@ -102,15 +126,57 @@ static int macvtap_set_queue(struct net_device *dev, struct file *file,
 
 	q->file = file;
 	q->queue_index = vlan->numvtaps;
+	q->enabled = true;
 	file->private_data = q;
+	list_add_tail(&q->next, &vlan->queue_list);
 
 	vlan->numvtaps++;
+	vlan->numqueues++;
 
 out:
 	spin_unlock(&macvtap_lock);
 	return err;
 }
 
+static int __macvtap_disable_queue(struct macvtap_queue *q)
+{
+	struct macvlan_dev *vlan;
+	struct macvtap_queue *nq;
+
+	vlan = rcu_dereference_protected(q->vlan,
+					 lockdep_is_held(&macvtap_lock));
+
+	if (!q->enabled)
+		return -EINVAL;
+
+	if (vlan) {
+		int index = q->queue_index;
+		BUG_ON(index >= vlan->numvtaps);
+		nq = rcu_dereference_protected(vlan->taps[vlan->numvtaps - 1],
+					       lockdep_is_held(&macvtap_lock));
+		nq->queue_index = index;
+
+		rcu_assign_pointer(vlan->taps[index], nq);
+		RCU_INIT_POINTER(vlan->taps[vlan->numvtaps - 1], NULL);
+		q->enabled = false;
+
+		vlan->numvtaps--;
+	}
+
+	return 0;
+}
+
+static int macvtap_disable_queue(struct macvtap_queue *q)
+{
+	int err;
+
+	spin_lock(&macvtap_lock);
+	err = __macvtap_disable_queue(q);
+	spin_unlock(&macvtap_lock);
+
+	return err;
+}
+
 /*
  * The file owning the queue got closed, give up both
  * the reference that the files holds as well as the
@@ -121,25 +187,19 @@ out:
  */
 static void macvtap_put_queue(struct macvtap_queue *q)
 {
-	struct macvtap_queue *nq;
 	struct macvlan_dev *vlan;
 
 	spin_lock(&macvtap_lock);
 	vlan = rcu_dereference_protected(q->vlan,
 					 lockdep_is_held(&macvtap_lock));
 	if (vlan) {
-		int index = q->queue_index;
-		BUG_ON(index >= vlan->numvtaps);
-
-		nq = rcu_dereference_protected(vlan->taps[vlan->numvtaps - 1],
-					       lockdep_is_held(&macvtap_lock));
-		rcu_assign_pointer(vlan->taps[index], nq);
-		nq->queue_index = index;
+		if (q->enabled)
+			BUG_ON(__macvtap_disable_queue(q));
 
-		RCU_INIT_POINTER(vlan->taps[vlan->numvtaps - 1], NULL);
+		vlan->numqueues--;
 		RCU_INIT_POINTER(q->vlan, NULL);
 		sock_put(&q->sk);
-		--vlan->numvtaps;
+		list_del_init(&q->next);
 	}
 
 	spin_unlock(&macvtap_lock);
@@ -160,6 +220,11 @@ static struct macvtap_queue *macvtap_get_queue(struct net_device *dev,
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	struct macvtap_queue *tap = NULL;
+	/* Access to taps array is protected by rcu, but access to numvtaps
+	 * isn't. Below we use it to lookup a queue, but treat it as a hint
+	 * and validate that the result isn't NULL - in case we are
+	 * racing against queue removal.
+	 */
 	int numvtaps = ACCESS_ONCE(vlan->numvtaps);
 	__u32 rxq;
 
@@ -196,18 +261,22 @@ out:
 static void macvtap_del_queues(struct net_device *dev)
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
-	struct macvtap_queue *q, *qlist[MAX_MACVTAP_QUEUES];
+	struct macvtap_queue *q, *tmp, *qlist[MAX_MACVTAP_QUEUES];
 	int i, j = 0;
 
 	spin_lock(&macvtap_lock);
-	for (i = 0; i < vlan->numvtaps; i++) {
-		q = rcu_dereference_protected(vlan->taps[i],
-					      lockdep_is_held(&macvtap_lock));
-		BUG_ON(q == NULL);
+	list_for_each_entry_safe(q, tmp, &vlan->queue_list, next) {
+		list_del_init(&q->next);
 		qlist[j++] = q;
-		RCU_INIT_POINTER(vlan->taps[i], NULL);
 		RCU_INIT_POINTER(q->vlan, NULL);
+		if (q->enabled)
+			vlan->numvtaps--;
+		vlan->numqueues--;
 	}
+	for (i = 0; i < vlan->numvtaps; i++)
+		RCU_INIT_POINTER(vlan->taps[i], NULL);
+	BUG_ON(vlan->numvtaps);
+	BUG_ON(vlan->numqueues);
 	/* guarantee that any future macvtap_set_queue will fail */
 	vlan->numvtaps = MAX_MACVTAP_QUEUES;
 	spin_unlock(&macvtap_lock);
@@ -298,6 +367,9 @@ static int macvtap_newlink(struct net *src_net,
 			   struct nlattr *tb[],
 			   struct nlattr *data[])
 {
+	struct macvlan_dev *vlan = netdev_priv(dev);
+	INIT_LIST_HEAD(&vlan->queue_list);
+
 	/* Don't put anything that may fail after macvlan_common_newlink
 	 * because we can't undo what it does.
 	 */
@@ -887,6 +959,25 @@ static void macvtap_put_vlan(struct macvlan_dev *vlan)
 	dev_put(vlan->dev);
 }
 
+static int macvtap_ioctl_set_queue(struct file *file, unsigned int flags)
+{
+	struct macvtap_queue *q = file->private_data;
+	struct macvlan_dev *vlan;
+	int ret;
+
+	vlan = macvtap_get_vlan(q);
+	if (!vlan)
+		return -EINVAL;
+
+	if (flags & IFF_ATTACH_QUEUE)
+		ret = macvtap_enable_queue(vlan->dev, file, q);
+	else if (flags & IFF_DETACH_QUEUE)
+		ret = macvtap_disable_queue(q);
+
+	macvtap_put_vlan(vlan);
+	return ret;
+}
+
 /*
  * provide compatibility with generic tun/tap interface
  */
@@ -910,7 +1001,8 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 			return -EFAULT;
 
 		ret = 0;
-		if ((u & ~IFF_VNET_HDR) != (IFF_NO_PI | IFF_TAP))
+		if ((u & ~(IFF_VNET_HDR | IFF_MULTI_QUEUE)) !=
+		    (IFF_NO_PI | IFF_TAP))
 			ret = -EINVAL;
 		else
 			q->flags = u;
@@ -929,6 +1021,11 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 		macvtap_put_vlan(vlan);
 		return ret;
 
+	case TUNSETQUEUE:
+		if (get_user(u, &ifr->ifr_flags))
+			return -EFAULT;
+		return macvtap_ioctl_set_queue(file, u);
+
 	case TUNGETFEATURES:
 		if (put_user(IFF_TAP | IFF_NO_PI | IFF_VNET_HDR, up))
 			return -EFAULT;
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index 62d8bda..1912133 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -69,8 +69,12 @@ struct macvlan_dev {
 	u16			flags;
 	int (*receive)(struct sk_buff *skb);
 	int (*forward)(struct net_device *dev, struct sk_buff *skb);
+	/* This array tracks active taps. */
 	struct macvtap_queue	*taps[MAX_MACVTAP_QUEUES];
+	/* This list tracks all taps (both enabled and disabled) */
+	struct list_head	queue_list;
 	int			numvtaps;
+	int			numqueues;
 	int			minor;
 };
 
-- 
cgit v0.10.2


From df09b36f2225b84571b3d5eda2e2683412320713 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 5 Jun 2013 23:54:40 +0000
Subject: macvtap: enable multiqueue flag

To notify the userspace about our capability of multiqueue.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index d2d1d55..992151c 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -31,10 +31,6 @@
  * macvtap_proto is used to allocate queues through the sock allocation
  * mechanism.
  *
- * TODO: multiqueue support is currently not implemented, even though
- * macvtap is basically prepared for that. We will need to add this
- * here as well as in virtio-net and qemu to get line rate on 10gbit
- * adapters from a guest.
  */
 struct macvtap_queue {
 	struct sock sk;
@@ -1027,7 +1023,8 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 		return macvtap_ioctl_set_queue(file, u);
 
 	case TUNGETFEATURES:
-		if (put_user(IFF_TAP | IFF_NO_PI | IFF_VNET_HDR, up))
+		if (put_user(IFF_TAP | IFF_NO_PI | IFF_VNET_HDR |
+			     IFF_MULTI_QUEUE, up))
 			return -EFAULT;
 		return 0;
 
-- 
cgit v0.10.2


From ad194288355a9e4b76c7404d3d5ecbeec8c532a9 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 10 Jun 2013 13:27:06 +0200
Subject: iwlwifi: mvm: remove iwl_mvm_dbgfs_set_fw_dbg_log declaration

This function doesn't actually exist, remove its declaration.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 4e10aae..ad39a22 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -689,16 +689,11 @@ void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 void
 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
 					 struct iwl_beacon_filter_cmd *cmd);
-int iwl_mvm_dbgfs_set_fw_dbg_log(struct iwl_mvm *mvm);
 #else
 static inline void
 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
 					 struct iwl_beacon_filter_cmd *cmd)
 {}
-static inline int iwl_mvm_dbgfs_set_fw_dbg_log(struct iwl_mvm *mvm)
-{
-	return 0;
-}
 #endif
 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif);
-- 
cgit v0.10.2


From cc2588eabbe46820a86e55fccec8b741e15f647f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 4 Jun 2013 07:44:50 -0700
Subject: cw1200: hwio: Remove an unnecessary goto

goto after return is wrong.

The other code in this block needs to set an
error value then goto an error release block.

This one doesn't need to release anything and
was likely a copy/paste remainder.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-By: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/hwio.c b/drivers/net/wireless/cw1200/hwio.c
index 142f45ef..dad3fb3 100644
--- a/drivers/net/wireless/cw1200/hwio.c
+++ b/drivers/net/wireless/cw1200/hwio.c
@@ -178,7 +178,6 @@ int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
 	if ((buf_len / 2) >= 0x1000) {
 		pr_err("Can't read more than 0xfff words.\n");
 		return -EINVAL;
-		goto out;
 	}
 
 	priv->hwbus_ops->lock(priv->hwbus_priv);
-- 
cgit v0.10.2


From aa63e18e3ddad4eb15d4af34ae66e7f4dcc7a6d0 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Tue, 4 Jun 2013 23:37:05 -0400
Subject: cw1200: Sanity-check arguments in copy_from_user()

The optional debugfs interface to the vendor's engineering tools wasn't
bounds checking at all, which made it trivial to perform a buffer
overflow if this interface was compiled in and then explicitly enabled
at runtime.

This patch checks both the length supplied as part of the data to ensure
it is sane, and also the amount of data compared to the remaining buffer
space.  If either is too large, fail immediately.

(This bug was spotted by Dan Carpenter <dan.carpenter@oracle.com>)

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/debug.c b/drivers/net/wireless/cw1200/debug.c
index eb40c9c..1596b70 100644
--- a/drivers/net/wireless/cw1200/debug.c
+++ b/drivers/net/wireless/cw1200/debug.c
@@ -397,13 +397,13 @@ struct etf_req_msg;
 static int etf_request(struct cw1200_common *priv,
 		       struct etf_req_msg *msg, u32 len);
 
-#define MAX_RX_SZE 2600
+#define MAX_RX_SIZE 2600
 
 struct etf_in_state {
 	struct cw1200_common *priv;
-	u32 total_len;
-	u8 buf[MAX_RX_SZE];
-	u32 written;
+	u16 total_len;
+	u16 written;
+	u8 buf[MAX_RX_SIZE];
 };
 
 static int cw1200_etf_in_open(struct inode *inode, struct file *file)
@@ -448,6 +448,11 @@ static ssize_t cw1200_etf_in_write(struct file *file,
 			return -EFAULT;
 		}
 
+		if (etf->total_len > MAX_RX_SIZE) {
+			pr_err("requested length > MAX_RX_SIZE\n");
+			return -EINVAL;
+		}
+
 		written += sizeof(etf->total_len);
 		count -= sizeof(etf->total_len);
 	}
@@ -455,6 +460,11 @@ static ssize_t cw1200_etf_in_write(struct file *file,
 	if (!count)
 		goto done;
 
+	if (count > (etf->total_len - written)) {
+		pr_err("Tried to write > MAX_RX_SIZE\n");
+		return -EINVAL;
+	}
+
 	if (copy_from_user(etf->buf + etf->written, user_buf + written,
 			   count)) {
 		pr_err("copy_from_user (payload %zu) failed\n", count);
-- 
cgit v0.10.2


From f28bc92c9530fe39eccfcff392879f19bd234578 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 6 Jun 2013 10:43:00 +0300
Subject: cw1200: read beyond end of array in debug code

This has only one caller and rates[] is an array with
IEEE80211_TX_MAX_RATES (4) elements.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/txrx.c b/drivers/net/wireless/cw1200/txrx.c
index 0e40890..a254747 100644
--- a/drivers/net/wireless/cw1200/txrx.c
+++ b/drivers/net/wireless/cw1200/txrx.c
@@ -190,13 +190,12 @@ static void tx_policy_build(const struct cw1200_common *priv,
 		policy->retry_count += retries;
 	}
 
-	pr_debug("[TX policy] Policy (%zu): %d:%d, %d:%d, %d:%d, %d:%d, %d:%d\n",
+	pr_debug("[TX policy] Policy (%zu): %d:%d, %d:%d, %d:%d, %d:%d\n",
 		 count,
 		 rates[0].idx, rates[0].count,
 		 rates[1].idx, rates[1].count,
 		 rates[2].idx, rates[2].count,
-		 rates[3].idx, rates[3].count,
-		 rates[4].idx, rates[4].count);
+		 rates[3].idx, rates[3].count);
 }
 
 static inline bool tx_policy_is_equal(const struct tx_policy *wanted,
-- 
cgit v0.10.2


From f7a01cac7305391433d609bd23241e4138e2fb84 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 6 Jun 2013 03:57:46 -0700
Subject: cw1200: handle allocation failure in wsm_event_indication()

Check for allocation failures and return -ENOMEM.  The caller
already expects it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/wsm.c b/drivers/net/wireless/cw1200/wsm.c
index f3fd9b2..3ab25f6 100644
--- a/drivers/net/wireless/cw1200/wsm.c
+++ b/drivers/net/wireless/cw1200/wsm.c
@@ -929,6 +929,8 @@ static int wsm_event_indication(struct cw1200_common *priv, struct wsm_buf *buf)
 	}
 
 	event = kzalloc(sizeof(struct cw1200_wsm_event), GFP_KERNEL);
+	if (!event)
+		return -ENOMEM;
 
 	event->evt.id = __le32_to_cpu(WSM_GET32(buf));
 	event->evt.data = __le32_to_cpu(WSM_GET32(buf));
-- 
cgit v0.10.2


From ec71997eff2231098212a99934c0fb987a9e6b04 Mon Sep 17 00:00:00 2001
From: Yunlian Jiang <yunlian@google.com>
Date: Fri, 31 May 2013 14:45:21 -0700
Subject: rtlwifi: initialize local array and set value.

GCC 4.8 is spitting out uninitialized-variable warnings against
"drivers/net/wireless/rtlwifi/rtl8192de/dm.c".

drivers/net/wireless/rtlwifi/rtl8192de/dm.c:941:31:
error: 'ofdm_index_old[1]' may be used uninitialized in this
function [-Werror=maybe-uninitialized]
     rtlpriv->dm.ofdm_index[i] = ofdm_index_old[i];

This patch adds initialization to the variable and properly sets its value.

Signed-off-by: Yunlian Jiang <yunlian@google.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/dm.c b/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
index 19a7655..47875ba 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
@@ -842,7 +842,7 @@ static void rtl92d_dm_txpower_tracking_callback_thermalmeter(
 	long val_y, ele_c = 0;
 	u8 ofdm_index[2];
 	s8 cck_index = 0;
-	u8 ofdm_index_old[2];
+	u8 ofdm_index_old[2] = {0, 0};
 	s8 cck_index_old = 0;
 	u8 index;
 	int i;
-- 
cgit v0.10.2


From 10af87c3d99112b3ca279cadd874cd542e4f6699 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 3 Jun 2013 23:39:53 +0200
Subject: rt2x00: rt2x00queue: initialize data_queue fields earlier

Support for rt2800 device is broken since my
'rt2x00: rt2x00dev: use rt2x00dev->tx->limit'
patch. The changelog of that commit says that the
TX data queue is initialized already when the
rt2x00lib_probe_hw() function is called.

However as Jakub noticed it, this statement is not
correct. The queue->limit field is initialized in
the rt2x00queue_alloc_entries routine and that is
not yet called when rt2x00lib_probe_hw() runs.
Because the value of tx->limit contains zero, the
driver tries to allocate a kernel fifo with zero
size and kfifo_alloc rejects that with -EINVAL.

  PCI: Enabling device 0000:01:00.0 (0000 -> 0002)
  ieee80211 phy1: rt2x00_set_rt: Info - RT chipset 3071, rev 021c detected
  ieee80211 phy1: rt2x00_set_rf: Info - RF chipset 0008 detected
  ieee80211 phy1: rt2x00lib_probe_dev: Error - Failed to initialize hw
  rt2800pci: probe of 0000:01:00.0 failed with error -22

Move the data_queue field initialization from
the rt2x00queue_alloc_entries routine into the
rt2x00queue_init function. The initialization
code is not strictly related to the allocation,
and the change ensures that the queue_data fields
can be used in the probe routines.

The patch also introduces a helper function in
order to be able to get the correct data_queue_desc
structure for a given queue. This helper is only
needed temporarily and it will be removed later.

Reported-by: Jakub Kicinski <moorray@wp.pl>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 2c12311..5efbbbd 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -1170,12 +1170,6 @@ static int rt2x00queue_alloc_entries(struct data_queue *queue,
 
 	rt2x00queue_reset(queue);
 
-	queue->limit = qdesc->entry_num;
-	queue->threshold = DIV_ROUND_UP(qdesc->entry_num, 10);
-	queue->data_size = qdesc->data_size;
-	queue->desc_size = qdesc->desc_size;
-	queue->winfo_size = qdesc->winfo_size;
-
 	/*
 	 * Allocate all queue entries.
 	 */
@@ -1284,9 +1278,38 @@ void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev)
 	}
 }
 
+static const struct data_queue_desc *
+rt2x00queue_get_qdesc_by_qid(struct rt2x00_dev *rt2x00dev,
+			     enum data_queue_qid qid)
+{
+	switch (qid) {
+	case QID_RX:
+		return rt2x00dev->ops->rx;
+
+	case QID_AC_BE:
+	case QID_AC_BK:
+	case QID_AC_VO:
+	case QID_AC_VI:
+		return rt2x00dev->ops->tx;
+
+	case QID_BEACON:
+		return rt2x00dev->ops->bcn;
+
+	case QID_ATIM:
+		return rt2x00dev->ops->atim;
+
+	default:
+		break;
+	}
+
+	return NULL;
+}
+
 static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
 			     struct data_queue *queue, enum data_queue_qid qid)
 {
+	const struct data_queue_desc *qdesc;
+
 	mutex_init(&queue->status_lock);
 	spin_lock_init(&queue->tx_lock);
 	spin_lock_init(&queue->index_lock);
@@ -1297,6 +1320,15 @@ static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
 	queue->aifs = 2;
 	queue->cw_min = 5;
 	queue->cw_max = 10;
+
+	qdesc = rt2x00queue_get_qdesc_by_qid(rt2x00dev, qid);
+	BUG_ON(!qdesc);
+
+	queue->limit = qdesc->entry_num;
+	queue->threshold = DIV_ROUND_UP(qdesc->entry_num, 10);
+	queue->data_size = qdesc->data_size;
+	queue->desc_size = qdesc->desc_size;
+	queue->winfo_size = qdesc->winfo_size;
 }
 
 int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev)
-- 
cgit v0.10.2


From 7260aac97447a2b2cb9e8684d1162118c4426354 Mon Sep 17 00:00:00 2001
From: Maxime Bizon <mbizon@freebox.fr>
Date: Tue, 4 Jun 2013 22:53:33 +0100
Subject: bcm63xx_enet: implement reset autoneg ethtool callback

Implement the rset_nway ethtool callback which uses libphy generic
autonegotiation restart function.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index e46466c..bc1a994 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -1328,6 +1328,20 @@ static void bcm_enet_get_ethtool_stats(struct net_device *netdev,
 	mutex_unlock(&priv->mib_update_lock);
 }
 
+static int bcm_enet_nway_reset(struct net_device *dev)
+{
+	struct bcm_enet_priv *priv;
+
+	priv = netdev_priv(dev);
+	if (priv->has_phy) {
+		if (!priv->phydev)
+			return -ENODEV;
+		return genphy_restart_aneg(priv->phydev);
+	}
+
+	return -EOPNOTSUPP;
+}
+
 static int bcm_enet_get_settings(struct net_device *dev,
 				 struct ethtool_cmd *cmd)
 {
@@ -1470,6 +1484,7 @@ static const struct ethtool_ops bcm_enet_ethtool_ops = {
 	.get_strings		= bcm_enet_get_strings,
 	.get_sset_count		= bcm_enet_get_sset_count,
 	.get_ethtool_stats      = bcm_enet_get_ethtool_stats,
+	.nway_reset		= bcm_enet_nway_reset,
 	.get_settings		= bcm_enet_get_settings,
 	.set_settings		= bcm_enet_set_settings,
 	.get_drvinfo		= bcm_enet_get_drvinfo,
-- 
cgit v0.10.2


From 0ae99b5fede6f3a8d252d50bb4aba29544295219 Mon Sep 17 00:00:00 2001
From: Maxime Bizon <mbizon@freebox.fr>
Date: Tue, 4 Jun 2013 22:53:34 +0100
Subject: bcm63xx_enet: split DMA channel register accesses

The current bcm63xx_enet driver always uses bcmenet_shared_base whenever
it needs to access DMA channel configuration space or access the DMA
channel state RAM. Split these register in 3 parts to be more accurate:

- global DMA configuration
- per DMA channel configuration space
- per DMA channel state RAM space

This is preliminary to support new chips where the global DMA
configuration remains the same, but there is a varying number of DMA
channels located at a different memory offset.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/mips/bcm63xx/dev-enet.c b/arch/mips/bcm63xx/dev-enet.c
index 39c2336..df5bf66 100644
--- a/arch/mips/bcm63xx/dev-enet.c
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -19,6 +19,16 @@ static struct resource shared_res[] = {
 		.end		= -1, /* filled at runtime */
 		.flags		= IORESOURCE_MEM,
 	},
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
 };
 
 static struct platform_device bcm63xx_enet_shared_device = {
@@ -110,10 +120,15 @@ int __init bcm63xx_enet_register(int unit,
 	if (!shared_device_registered) {
 		shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
 		shared_res[0].end = shared_res[0].start;
-		if (BCMCPU_IS_6338())
-			shared_res[0].end += (RSET_ENETDMA_SIZE / 2)  - 1;
-		else
-			shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
+		shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
+
+		shared_res[1].start = bcm63xx_regset_address(RSET_ENETDMAC);
+		shared_res[1].end = shared_res[1].start;
+		shared_res[1].end += RSET_ENETDMAC_SIZE(16)  - 1;
+
+		shared_res[2].start = bcm63xx_regset_address(RSET_ENETDMAS);
+		shared_res[2].end = shared_res[2].start;
+		shared_res[2].end += RSET_ENETDMAS_SIZE(16)  - 1;
 
 		ret = platform_device_register(&bcm63xx_enet_shared_device);
 		if (ret)
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
index 3362289..9981f4f 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
@@ -173,7 +173,9 @@ enum bcm63xx_regs_set {
 #define BCM_6358_RSET_SPI_SIZE		1804
 #define BCM_6368_RSET_SPI_SIZE		1804
 #define RSET_ENET_SIZE			2048
-#define RSET_ENETDMA_SIZE		2048
+#define RSET_ENETDMA_SIZE		256
+#define RSET_ENETDMAC_SIZE(chans)	(16 * (chans))
+#define RSET_ENETDMAS_SIZE(chans)	(16 * (chans))
 #define RSET_ENETSW_SIZE		65536
 #define RSET_UART_SIZE			24
 #define RSET_UDC_SIZE			256
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index bc1a994..edaf76d 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -41,8 +41,8 @@ static int copybreak __read_mostly = 128;
 module_param(copybreak, int, 0);
 MODULE_PARM_DESC(copybreak, "Receive copy threshold");
 
-/* io memory shared between all devices */
-static void __iomem *bcm_enet_shared_base;
+/* io registers memory shared between all devices */
+static void __iomem *bcm_enet_shared_base[3];
 
 /*
  * io helpers to access mac registers
@@ -63,13 +63,35 @@ static inline void enet_writel(struct bcm_enet_priv *priv,
  */
 static inline u32 enet_dma_readl(struct bcm_enet_priv *priv, u32 off)
 {
-	return bcm_readl(bcm_enet_shared_base + off);
+	return bcm_readl(bcm_enet_shared_base[0] + off);
 }
 
 static inline void enet_dma_writel(struct bcm_enet_priv *priv,
 				       u32 val, u32 off)
 {
-	bcm_writel(val, bcm_enet_shared_base + off);
+	bcm_writel(val, bcm_enet_shared_base[0] + off);
+}
+
+static inline u32 enet_dmac_readl(struct bcm_enet_priv *priv, u32 off)
+{
+	return bcm_readl(bcm_enet_shared_base[1] + off);
+}
+
+static inline void enet_dmac_writel(struct bcm_enet_priv *priv,
+				       u32 val, u32 off)
+{
+	bcm_writel(val, bcm_enet_shared_base[1] + off);
+}
+
+static inline u32 enet_dmas_readl(struct bcm_enet_priv *priv, u32 off)
+{
+	return bcm_readl(bcm_enet_shared_base[2] + off);
+}
+
+static inline void enet_dmas_writel(struct bcm_enet_priv *priv,
+				       u32 val, u32 off)
+{
+	bcm_writel(val, bcm_enet_shared_base[2] + off);
 }
 
 /*
@@ -353,8 +375,8 @@ static int bcm_enet_receive_queue(struct net_device *dev, int budget)
 		bcm_enet_refill_rx(dev);
 
 		/* kick rx dma */
-		enet_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK,
-				ENETDMA_CHANCFG_REG(priv->rx_chan));
+		enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
+				 ENETDMAC_CHANCFG_REG(priv->rx_chan));
 	}
 
 	return processed;
@@ -429,10 +451,10 @@ static int bcm_enet_poll(struct napi_struct *napi, int budget)
 	dev = priv->net_dev;
 
 	/* ack interrupts */
-	enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK,
-			ENETDMA_IR_REG(priv->rx_chan));
-	enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK,
-			ENETDMA_IR_REG(priv->tx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IR_REG(priv->rx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IR_REG(priv->tx_chan));
 
 	/* reclaim sent skb */
 	tx_work_done = bcm_enet_tx_reclaim(dev, 0);
@@ -451,10 +473,10 @@ static int bcm_enet_poll(struct napi_struct *napi, int budget)
 	napi_complete(napi);
 
 	/* restore rx/tx interrupt */
-	enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK,
-			ENETDMA_IRMASK_REG(priv->rx_chan));
-	enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK,
-			ENETDMA_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IRMASK_REG(priv->rx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IRMASK_REG(priv->tx_chan));
 
 	return rx_work_done;
 }
@@ -497,8 +519,8 @@ static irqreturn_t bcm_enet_isr_dma(int irq, void *dev_id)
 	priv = netdev_priv(dev);
 
 	/* mask rx/tx interrupts */
-	enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan));
-	enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
 
 	napi_schedule(&priv->napi);
 
@@ -557,8 +579,8 @@ static int bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	wmb();
 
 	/* kick tx dma */
-	enet_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK,
-			ENETDMA_CHANCFG_REG(priv->tx_chan));
+	enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
+			 ENETDMAC_CHANCFG_REG(priv->tx_chan));
 
 	/* stop queue if no more desc available */
 	if (!priv->tx_desc_count)
@@ -833,8 +855,8 @@ static int bcm_enet_open(struct net_device *dev)
 
 	/* mask all interrupts and request them */
 	enet_writel(priv, 0, ENET_IRMASK_REG);
-	enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan));
-	enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
 
 	ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev);
 	if (ret)
@@ -919,28 +941,28 @@ static int bcm_enet_open(struct net_device *dev)
 	}
 
 	/* write rx & tx ring addresses */
-	enet_dma_writel(priv, priv->rx_desc_dma,
-			ENETDMA_RSTART_REG(priv->rx_chan));
-	enet_dma_writel(priv, priv->tx_desc_dma,
-			ENETDMA_RSTART_REG(priv->tx_chan));
+	enet_dmas_writel(priv, priv->rx_desc_dma,
+			 ENETDMAS_RSTART_REG(priv->rx_chan));
+	enet_dmas_writel(priv, priv->tx_desc_dma,
+			 ENETDMAS_RSTART_REG(priv->tx_chan));
 
 	/* clear remaining state ram for rx & tx channel */
-	enet_dma_writel(priv, 0, ENETDMA_SRAM2_REG(priv->rx_chan));
-	enet_dma_writel(priv, 0, ENETDMA_SRAM2_REG(priv->tx_chan));
-	enet_dma_writel(priv, 0, ENETDMA_SRAM3_REG(priv->rx_chan));
-	enet_dma_writel(priv, 0, ENETDMA_SRAM3_REG(priv->tx_chan));
-	enet_dma_writel(priv, 0, ENETDMA_SRAM4_REG(priv->rx_chan));
-	enet_dma_writel(priv, 0, ENETDMA_SRAM4_REG(priv->tx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->rx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->tx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->rx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->tx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->rx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->tx_chan));
 
 	/* set max rx/tx length */
 	enet_writel(priv, priv->hw_mtu, ENET_RXMAXLEN_REG);
 	enet_writel(priv, priv->hw_mtu, ENET_TXMAXLEN_REG);
 
 	/* set dma maximum burst len */
-	enet_dma_writel(priv, BCMENET_DMA_MAXBURST,
-			ENETDMA_MAXBURST_REG(priv->rx_chan));
-	enet_dma_writel(priv, BCMENET_DMA_MAXBURST,
-			ENETDMA_MAXBURST_REG(priv->tx_chan));
+	enet_dmac_writel(priv, BCMENET_DMA_MAXBURST,
+			 ENETDMAC_MAXBURST_REG(priv->rx_chan));
+	enet_dmac_writel(priv, BCMENET_DMA_MAXBURST,
+			 ENETDMAC_MAXBURST_REG(priv->tx_chan));
 
 	/* set correct transmit fifo watermark */
 	enet_writel(priv, BCMENET_TX_FIFO_TRESH, ENET_TXWMARK_REG);
@@ -958,26 +980,26 @@ static int bcm_enet_open(struct net_device *dev)
 	val |= ENET_CTL_ENABLE_MASK;
 	enet_writel(priv, val, ENET_CTL_REG);
 	enet_dma_writel(priv, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG);
-	enet_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK,
-			ENETDMA_CHANCFG_REG(priv->rx_chan));
+	enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
+			 ENETDMAC_CHANCFG_REG(priv->rx_chan));
 
 	/* watch "mib counters about to overflow" interrupt */
 	enet_writel(priv, ENET_IR_MIB, ENET_IR_REG);
 	enet_writel(priv, ENET_IR_MIB, ENET_IRMASK_REG);
 
 	/* watch "packet transferred" interrupt in rx and tx */
-	enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK,
-			ENETDMA_IR_REG(priv->rx_chan));
-	enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK,
-			ENETDMA_IR_REG(priv->tx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IR_REG(priv->rx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IR_REG(priv->tx_chan));
 
 	/* make sure we enable napi before rx interrupt  */
 	napi_enable(&priv->napi);
 
-	enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK,
-			ENETDMA_IRMASK_REG(priv->rx_chan));
-	enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK,
-			ENETDMA_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IRMASK_REG(priv->rx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IRMASK_REG(priv->tx_chan));
 
 	if (priv->has_phy)
 		phy_start(priv->phydev);
@@ -1057,14 +1079,14 @@ static void bcm_enet_disable_dma(struct bcm_enet_priv *priv, int chan)
 {
 	int limit;
 
-	enet_dma_writel(priv, 0, ENETDMA_CHANCFG_REG(chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_CHANCFG_REG(chan));
 
 	limit = 1000;
 	do {
 		u32 val;
 
-		val = enet_dma_readl(priv, ENETDMA_CHANCFG_REG(chan));
-		if (!(val & ENETDMA_CHANCFG_EN_MASK))
+		val = enet_dmac_readl(priv, ENETDMAC_CHANCFG_REG(chan));
+		if (!(val & ENETDMAC_CHANCFG_EN_MASK))
 			break;
 		udelay(1);
 	} while (limit--);
@@ -1090,8 +1112,8 @@ static int bcm_enet_stop(struct net_device *dev)
 
 	/* mask all interrupts */
 	enet_writel(priv, 0, ENET_IRMASK_REG);
-	enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan));
-	enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
 
 	/* make sure no mib update is scheduled */
 	cancel_work_sync(&priv->mib_update_task);
@@ -1636,7 +1658,7 @@ static int bcm_enet_probe(struct platform_device *pdev)
 
 	/* stop if shared driver failed, assume driver->probe will be
 	 * called in the same order we register devices (correct ?) */
-	if (!bcm_enet_shared_base)
+	if (!bcm_enet_shared_base[0])
 		return -ENODEV;
 
 	res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1881,14 +1903,19 @@ struct platform_driver bcm63xx_enet_driver = {
 static int bcm_enet_shared_probe(struct platform_device *pdev)
 {
 	struct resource *res;
+	void __iomem *p[3];
+	unsigned int i;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
+	memset(bcm_enet_shared_base, 0, sizeof(bcm_enet_shared_base));
 
-	bcm_enet_shared_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!bcm_enet_shared_base)
-		return -ENOMEM;
+	for (i = 0; i < 3; i++) {
+		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+		p[i] = devm_ioremap_resource(&pdev->dev, res);
+		if (!p[i])
+			return -ENOMEM;
+	}
+
+	memcpy(bcm_enet_shared_base, p, sizeof(bcm_enet_shared_base));
 
 	return 0;
 }
-- 
cgit v0.10.2


From 6f00a0229627ca189529cad3f9154ac2f9e5c7db Mon Sep 17 00:00:00 2001
From: Maxime Bizon <mbizon@freebox.fr>
Date: Tue, 4 Jun 2013 22:53:35 +0100
Subject: bcm63xx_enet: add support for Broadcom BCM63xx integrated gigabit
 switch

Newer Broadcom BCM63xx SoCs: 6328, 6362 and 6368 have an integrated switch
which needs to be driven slightly differently from the traditional
external switches. This patch introduces changes in arch/mips/bcm63xx in order
to:

- register a bcm63xx_enetsw driver instead of bcm63xx_enet driver
- update DMA channels configuration & state RAM base addresses
- add a new platform data configuration knob to define the number of
  ports per switch/device and force link on some ports
- define the required switch registers

On the driver side, the following changes are required:

- the switch ports need to be polled to ensure the link is up and
  running and RX/TX can properly work
- basic switch configuration needs to be performed for the switch to
  forward packets to the CPU
- update the MIB counters since the integrated

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index a9505c4..9c0ddaf 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -845,6 +845,10 @@ int __init board_register_devices(void)
 	    !bcm63xx_nvram_get_mac_address(board.enet1.mac_addr))
 		bcm63xx_enet_register(1, &board.enet1);
 
+	if (board.has_enetsw &&
+	    !bcm63xx_nvram_get_mac_address(board.enetsw.mac_addr))
+		bcm63xx_enetsw_register(&board.enetsw);
+
 	if (board.has_usbd)
 		bcm63xx_usbd_register(&board.usbd);
 
diff --git a/arch/mips/bcm63xx/dev-enet.c b/arch/mips/bcm63xx/dev-enet.c
index df5bf66..6cbaee0 100644
--- a/arch/mips/bcm63xx/dev-enet.c
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -104,6 +104,64 @@ static struct platform_device bcm63xx_enet1_device = {
 	},
 };
 
+static struct resource enetsw_res[] = {
+	{
+		/* start & end filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		/* start filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+	{
+		/* start filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct bcm63xx_enetsw_platform_data enetsw_pd;
+
+static struct platform_device bcm63xx_enetsw_device = {
+	.name		= "bcm63xx_enetsw",
+	.num_resources	= ARRAY_SIZE(enetsw_res),
+	.resource	= enetsw_res,
+	.dev		= {
+		.platform_data = &enetsw_pd,
+	},
+};
+
+static int __init register_shared(void)
+{
+	int ret, chan_count;
+
+	if (shared_device_registered)
+		return 0;
+
+	shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
+	shared_res[0].end = shared_res[0].start;
+	shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
+
+	if (BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_6368())
+		chan_count = 32;
+	else
+		chan_count = 16;
+
+	shared_res[1].start = bcm63xx_regset_address(RSET_ENETDMAC);
+	shared_res[1].end = shared_res[1].start;
+	shared_res[1].end += RSET_ENETDMAC_SIZE(chan_count)  - 1;
+
+	shared_res[2].start = bcm63xx_regset_address(RSET_ENETDMAS);
+	shared_res[2].end = shared_res[2].start;
+	shared_res[2].end += RSET_ENETDMAS_SIZE(chan_count)  - 1;
+
+	ret = platform_device_register(&bcm63xx_enet_shared_device);
+	if (ret)
+		return ret;
+	shared_device_registered = 1;
+
+	return 0;
+}
+
 int __init bcm63xx_enet_register(int unit,
 				 const struct bcm63xx_enet_platform_data *pd)
 {
@@ -117,24 +175,9 @@ int __init bcm63xx_enet_register(int unit,
 	if (unit == 1 && BCMCPU_IS_6338())
 		return -ENODEV;
 
-	if (!shared_device_registered) {
-		shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
-		shared_res[0].end = shared_res[0].start;
-		shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
-
-		shared_res[1].start = bcm63xx_regset_address(RSET_ENETDMAC);
-		shared_res[1].end = shared_res[1].start;
-		shared_res[1].end += RSET_ENETDMAC_SIZE(16)  - 1;
-
-		shared_res[2].start = bcm63xx_regset_address(RSET_ENETDMAS);
-		shared_res[2].end = shared_res[2].start;
-		shared_res[2].end += RSET_ENETDMAS_SIZE(16)  - 1;
-
-		ret = platform_device_register(&bcm63xx_enet_shared_device);
-		if (ret)
-			return ret;
-		shared_device_registered = 1;
-	}
+	ret = register_shared();
+	if (ret)
+		return ret;
 
 	if (unit == 0) {
 		enet0_res[0].start = bcm63xx_regset_address(RSET_ENET0);
@@ -175,3 +218,37 @@ int __init bcm63xx_enet_register(int unit,
 		return ret;
 	return 0;
 }
+
+int __init
+bcm63xx_enetsw_register(const struct bcm63xx_enetsw_platform_data *pd)
+{
+	int ret;
+
+	if (!BCMCPU_IS_6328() && !BCMCPU_IS_6362() && !BCMCPU_IS_6368())
+		return -ENODEV;
+
+	ret = register_shared();
+	if (ret)
+		return ret;
+
+	enetsw_res[0].start = bcm63xx_regset_address(RSET_ENETSW);
+	enetsw_res[0].end = enetsw_res[0].start;
+	enetsw_res[0].end += RSET_ENETSW_SIZE - 1;
+	enetsw_res[1].start = bcm63xx_get_irq_number(IRQ_ENETSW_RXDMA0);
+	enetsw_res[2].start = bcm63xx_get_irq_number(IRQ_ENETSW_TXDMA0);
+	if (!enetsw_res[2].start)
+		enetsw_res[2].start = -1;
+
+	memcpy(bcm63xx_enetsw_device.dev.platform_data, pd, sizeof(*pd));
+
+	if (BCMCPU_IS_6328())
+		enetsw_pd.num_ports = ENETSW_PORTS_6328;
+	else if (BCMCPU_IS_6362() || BCMCPU_IS_6368())
+		enetsw_pd.num_ports = ENETSW_PORTS_6368;
+
+	ret = platform_device_register(&bcm63xx_enetsw_device);
+	if (ret)
+		return ret;
+
+	return 0;
+}
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
index d53f611..118e3c9 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
@@ -39,7 +39,35 @@ struct bcm63xx_enet_platform_data {
 					    int phy_id, int reg, int val));
 };
 
+/*
+ * on board ethernet switch platform data
+ */
+#define ENETSW_MAX_PORT	8
+#define ENETSW_PORTS_6328 5 /* 4 FE PHY + 1 RGMII */
+#define ENETSW_PORTS_6368 6 /* 4 FE PHY + 2 RGMII */
+
+#define ENETSW_RGMII_PORT0	4
+
+struct bcm63xx_enetsw_port {
+	int		used;
+	int		phy_id;
+
+	int		bypass_link;
+	int		force_speed;
+	int		force_duplex_full;
+
+	const char	*name;
+};
+
+struct bcm63xx_enetsw_platform_data {
+	char mac_addr[ETH_ALEN];
+	int num_ports;
+	struct bcm63xx_enetsw_port used_ports[ENETSW_MAX_PORT];
+};
+
 int __init bcm63xx_enet_register(int unit,
 				 const struct bcm63xx_enet_platform_data *pd);
 
+int bcm63xx_enetsw_register(const struct bcm63xx_enetsw_platform_data *pd);
+
 #endif /* ! BCM63XX_DEV_ENET_H_ */
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 3203fe4..0a2121a 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -830,10 +830,60 @@
  * _REG relative to RSET_ENETSW
  *************************************************************************/
 
+/* Port traffic control */
+#define ENETSW_PTCTRL_REG(x)		(0x0 + (x))
+#define ENETSW_PTCTRL_RXDIS_MASK	(1 << 0)
+#define ENETSW_PTCTRL_TXDIS_MASK	(1 << 1)
+
+/* Switch mode register */
+#define ENETSW_SWMODE_REG		(0xb)
+#define ENETSW_SWMODE_FWD_EN_MASK	(1 << 1)
+
+/* IMP override Register */
+#define ENETSW_IMPOV_REG		(0xe)
+#define ENETSW_IMPOV_FORCE_MASK		(1 << 7)
+#define ENETSW_IMPOV_TXFLOW_MASK	(1 << 5)
+#define ENETSW_IMPOV_RXFLOW_MASK	(1 << 4)
+#define ENETSW_IMPOV_1000_MASK		(1 << 3)
+#define ENETSW_IMPOV_100_MASK		(1 << 2)
+#define ENETSW_IMPOV_FDX_MASK		(1 << 1)
+#define ENETSW_IMPOV_LINKUP_MASK	(1 << 0)
+
+/* Port override Register */
+#define ENETSW_PORTOV_REG(x)		(0x58 + (x))
+#define ENETSW_PORTOV_ENABLE_MASK	(1 << 6)
+#define ENETSW_PORTOV_TXFLOW_MASK	(1 << 5)
+#define ENETSW_PORTOV_RXFLOW_MASK	(1 << 4)
+#define ENETSW_PORTOV_1000_MASK		(1 << 3)
+#define ENETSW_PORTOV_100_MASK		(1 << 2)
+#define ENETSW_PORTOV_FDX_MASK		(1 << 1)
+#define ENETSW_PORTOV_LINKUP_MASK	(1 << 0)
+
+/* MDIO control register */
+#define ENETSW_MDIOC_REG		(0xb0)
+#define ENETSW_MDIOC_EXT_MASK		(1 << 16)
+#define ENETSW_MDIOC_REG_SHIFT		20
+#define ENETSW_MDIOC_PHYID_SHIFT	25
+#define ENETSW_MDIOC_RD_MASK		(1 << 30)
+#define ENETSW_MDIOC_WR_MASK		(1 << 31)
+
+/* MDIO data register */
+#define ENETSW_MDIOD_REG		(0xb4)
+
+/* Global Management Configuration Register */
+#define ENETSW_GMCR_REG			(0x200)
+#define ENETSW_GMCR_RST_MIB_MASK	(1 << 0)
+
 /* MIB register */
 #define ENETSW_MIB_REG(x)		(0x2800 + (x) * 4)
 #define ENETSW_MIB_REG_COUNT		47
 
+/* Jumbo control register port mask register */
+#define ENETSW_JMBCTL_PORT_REG		(0x4004)
+
+/* Jumbo control mib good frame register */
+#define ENETSW_JMBCTL_MAXSIZE_REG	(0x4008)
+
 
 /*************************************************************************
  * _REG relative to RSET_OHCI_PRIV
diff --git a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
index 682bcf3..d9aee1a 100644
--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
+++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
@@ -24,6 +24,7 @@ struct board_info {
 	/* enabled feature/device */
 	unsigned int	has_enet0:1;
 	unsigned int	has_enet1:1;
+	unsigned int	has_enetsw:1;
 	unsigned int	has_pci:1;
 	unsigned int	has_pccard:1;
 	unsigned int	has_ohci0:1;
@@ -36,6 +37,7 @@ struct board_info {
 	/* ethernet config */
 	struct bcm63xx_enet_platform_data enet0;
 	struct bcm63xx_enet_platform_data enet1;
+	struct bcm63xx_enetsw_platform_data enetsw;
 
 	/* USB config */
 	struct bcm63xx_usbd_platform_data usbd;
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index edaf76d..fbbfc4a 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -59,8 +59,43 @@ static inline void enet_writel(struct bcm_enet_priv *priv,
 }
 
 /*
- * io helpers to access shared registers
+ * io helpers to access switch registers
  */
+static inline u32 enetsw_readl(struct bcm_enet_priv *priv, u32 off)
+{
+	return bcm_readl(priv->base + off);
+}
+
+static inline void enetsw_writel(struct bcm_enet_priv *priv,
+				 u32 val, u32 off)
+{
+	bcm_writel(val, priv->base + off);
+}
+
+static inline u16 enetsw_readw(struct bcm_enet_priv *priv, u32 off)
+{
+	return bcm_readw(priv->base + off);
+}
+
+static inline void enetsw_writew(struct bcm_enet_priv *priv,
+				 u16 val, u32 off)
+{
+	bcm_writew(val, priv->base + off);
+}
+
+static inline u8 enetsw_readb(struct bcm_enet_priv *priv, u32 off)
+{
+	return bcm_readb(priv->base + off);
+}
+
+static inline void enetsw_writeb(struct bcm_enet_priv *priv,
+				 u8 val, u32 off)
+{
+	bcm_writeb(val, priv->base + off);
+}
+
+
+/* io helpers to access shared registers */
 static inline u32 enet_dma_readl(struct bcm_enet_priv *priv, u32 off)
 {
 	return bcm_readl(bcm_enet_shared_base[0] + off);
@@ -218,7 +253,6 @@ static int bcm_enet_refill_rx(struct net_device *dev)
 			if (!skb)
 				break;
 			priv->rx_skb[desc_idx] = skb;
-
 			p = dma_map_single(&priv->pdev->dev, skb->data,
 					   priv->rx_skb_size,
 					   DMA_FROM_DEVICE);
@@ -321,7 +355,8 @@ static int bcm_enet_receive_queue(struct net_device *dev, int budget)
 		}
 
 		/* recycle packet if it's marked as bad */
-		if (unlikely(len_stat & DMADESC_ERR_MASK)) {
+		if (!priv->enet_is_sw &&
+		    unlikely(len_stat & DMADESC_ERR_MASK)) {
 			dev->stats.rx_errors++;
 
 			if (len_stat & DMADESC_OVSIZE_MASK)
@@ -552,6 +587,26 @@ static int bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		goto out_unlock;
 	}
 
+	/* pad small packets sent on a switch device */
+	if (priv->enet_is_sw && skb->len < 64) {
+		int needed = 64 - skb->len;
+		char *data;
+
+		if (unlikely(skb_tailroom(skb) < needed)) {
+			struct sk_buff *nskb;
+
+			nskb = skb_copy_expand(skb, 0, needed, GFP_ATOMIC);
+			if (!nskb) {
+				ret = NETDEV_TX_BUSY;
+				goto out_unlock;
+			}
+			dev_kfree_skb(skb);
+			skb = nskb;
+		}
+		data = skb_put(skb, needed);
+		memset(data, 0, needed);
+	}
+
 	/* point to the next available desc */
 	desc = &priv->tx_desc_cpu[priv->tx_curr_desc];
 	priv->tx_skb[priv->tx_curr_desc] = skb;
@@ -959,9 +1014,9 @@ static int bcm_enet_open(struct net_device *dev)
 	enet_writel(priv, priv->hw_mtu, ENET_TXMAXLEN_REG);
 
 	/* set dma maximum burst len */
-	enet_dmac_writel(priv, BCMENET_DMA_MAXBURST,
+	enet_dmac_writel(priv, priv->dma_maxburst,
 			 ENETDMAC_MAXBURST_REG(priv->rx_chan));
-	enet_dmac_writel(priv, BCMENET_DMA_MAXBURST,
+	enet_dmac_writel(priv, priv->dma_maxburst,
 			 ENETDMAC_MAXBURST_REG(priv->tx_chan));
 
 	/* set correct transmit fifo watermark */
@@ -1567,7 +1622,7 @@ static int compute_hw_mtu(struct bcm_enet_priv *priv, int mtu)
 	 * it's appended
 	 */
 	priv->rx_skb_size = ALIGN(actual_mtu + ETH_FCS_LEN,
-				  BCMENET_DMA_MAXBURST * 4);
+				  priv->dma_maxburst * 4);
 	return 0;
 }
 
@@ -1674,6 +1729,9 @@ static int bcm_enet_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	priv = netdev_priv(dev);
 
+	priv->enet_is_sw = false;
+	priv->dma_maxburst = BCMENET_DMA_MAXBURST;
+
 	ret = compute_hw_mtu(priv, dev->mtu);
 	if (ret)
 		goto out;
@@ -1898,60 +1956,916 @@ struct platform_driver bcm63xx_enet_driver = {
 };
 
 /*
- * reserve & remap memory space shared between all macs
+ * switch mii access callbacks
  */
-static int bcm_enet_shared_probe(struct platform_device *pdev)
+static int bcmenet_sw_mdio_read(struct bcm_enet_priv *priv,
+				int ext, int phy_id, int location)
 {
-	struct resource *res;
-	void __iomem *p[3];
-	unsigned int i;
+	u32 reg;
+	int ret;
 
-	memset(bcm_enet_shared_base, 0, sizeof(bcm_enet_shared_base));
+	spin_lock_bh(&priv->enetsw_mdio_lock);
+	enetsw_writel(priv, 0, ENETSW_MDIOC_REG);
 
-	for (i = 0; i < 3; i++) {
-		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
-		p[i] = devm_ioremap_resource(&pdev->dev, res);
-		if (!p[i])
-			return -ENOMEM;
-	}
+	reg = ENETSW_MDIOC_RD_MASK |
+		(phy_id << ENETSW_MDIOC_PHYID_SHIFT) |
+		(location << ENETSW_MDIOC_REG_SHIFT);
 
-	memcpy(bcm_enet_shared_base, p, sizeof(bcm_enet_shared_base));
+	if (ext)
+		reg |= ENETSW_MDIOC_EXT_MASK;
 
-	return 0;
+	enetsw_writel(priv, reg, ENETSW_MDIOC_REG);
+	udelay(50);
+	ret = enetsw_readw(priv, ENETSW_MDIOD_REG);
+	spin_unlock_bh(&priv->enetsw_mdio_lock);
+	return ret;
 }
 
-static int bcm_enet_shared_remove(struct platform_device *pdev)
+static void bcmenet_sw_mdio_write(struct bcm_enet_priv *priv,
+				 int ext, int phy_id, int location,
+				 uint16_t data)
 {
-	return 0;
+	u32 reg;
+
+	spin_lock_bh(&priv->enetsw_mdio_lock);
+	enetsw_writel(priv, 0, ENETSW_MDIOC_REG);
+
+	reg = ENETSW_MDIOC_WR_MASK |
+		(phy_id << ENETSW_MDIOC_PHYID_SHIFT) |
+		(location << ENETSW_MDIOC_REG_SHIFT);
+
+	if (ext)
+		reg |= ENETSW_MDIOC_EXT_MASK;
+
+	reg |= data;
+
+	enetsw_writel(priv, reg, ENETSW_MDIOC_REG);
+	udelay(50);
+	spin_unlock_bh(&priv->enetsw_mdio_lock);
+}
+
+static inline int bcm_enet_port_is_rgmii(int portid)
+{
+	return portid >= ENETSW_RGMII_PORT0;
 }
 
 /*
- * this "shared" driver is needed because both macs share a single
- * address space
+ * enet sw PHY polling
  */
-struct platform_driver bcm63xx_enet_shared_driver = {
-	.probe	= bcm_enet_shared_probe,
-	.remove	= bcm_enet_shared_remove,
-	.driver	= {
-		.name	= "bcm63xx_enet_shared",
-		.owner  = THIS_MODULE,
-	},
-};
+static void swphy_poll_timer(unsigned long data)
+{
+	struct bcm_enet_priv *priv = (struct bcm_enet_priv *)data;
+	unsigned int i;
+
+	for (i = 0; i < priv->num_ports; i++) {
+		struct bcm63xx_enetsw_port *port;
+		int val, j, up, advertise, lpa, lpa2, speed, duplex, media;
+		int external_phy = bcm_enet_port_is_rgmii(i);
+		u8 override;
+
+		port = &priv->used_ports[i];
+		if (!port->used)
+			continue;
+
+		if (port->bypass_link)
+			continue;
+
+		/* dummy read to clear */
+		for (j = 0; j < 2; j++)
+			val = bcmenet_sw_mdio_read(priv, external_phy,
+						   port->phy_id, MII_BMSR);
+
+		if (val == 0xffff)
+			continue;
+
+		up = (val & BMSR_LSTATUS) ? 1 : 0;
+		if (!(up ^ priv->sw_port_link[i]))
+			continue;
+
+		priv->sw_port_link[i] = up;
+
+		/* link changed */
+		if (!up) {
+			dev_info(&priv->pdev->dev, "link DOWN on %s\n",
+				 port->name);
+			enetsw_writeb(priv, ENETSW_PORTOV_ENABLE_MASK,
+				      ENETSW_PORTOV_REG(i));
+			enetsw_writeb(priv, ENETSW_PTCTRL_RXDIS_MASK |
+				      ENETSW_PTCTRL_TXDIS_MASK,
+				      ENETSW_PTCTRL_REG(i));
+			continue;
+		}
+
+		advertise = bcmenet_sw_mdio_read(priv, external_phy,
+						 port->phy_id, MII_ADVERTISE);
+
+		lpa = bcmenet_sw_mdio_read(priv, external_phy, port->phy_id,
+					   MII_LPA);
+
+		lpa2 = bcmenet_sw_mdio_read(priv, external_phy, port->phy_id,
+					    MII_STAT1000);
+
+		/* figure out media and duplex from advertise and LPA values */
+		media = mii_nway_result(lpa & advertise);
+		duplex = (media & ADVERTISE_FULL) ? 1 : 0;
+		if (lpa2 & LPA_1000FULL)
+			duplex = 1;
+
+		if (lpa2 & (LPA_1000FULL | LPA_1000HALF))
+			speed = 1000;
+		else {
+			if (media & (ADVERTISE_100FULL | ADVERTISE_100HALF))
+				speed = 100;
+			else
+				speed = 10;
+		}
+
+		dev_info(&priv->pdev->dev,
+			 "link UP on %s, %dMbps, %s-duplex\n",
+			 port->name, speed, duplex ? "full" : "half");
+
+		override = ENETSW_PORTOV_ENABLE_MASK |
+			ENETSW_PORTOV_LINKUP_MASK;
+
+		if (speed == 1000)
+			override |= ENETSW_IMPOV_1000_MASK;
+		else if (speed == 100)
+			override |= ENETSW_IMPOV_100_MASK;
+		if (duplex)
+			override |= ENETSW_IMPOV_FDX_MASK;
+
+		enetsw_writeb(priv, override, ENETSW_PORTOV_REG(i));
+		enetsw_writeb(priv, 0, ENETSW_PTCTRL_REG(i));
+	}
+
+	priv->swphy_poll.expires = jiffies + HZ;
+	add_timer(&priv->swphy_poll);
+}
 
 /*
- * entry point
+ * open callback, allocate dma rings & buffers and start rx operation
  */
-static int __init bcm_enet_init(void)
+static int bcm_enetsw_open(struct net_device *dev)
 {
-	int ret;
+	struct bcm_enet_priv *priv;
+	struct device *kdev;
+	int i, ret;
+	unsigned int size;
+	void *p;
+	u32 val;
 
-	ret = platform_driver_register(&bcm63xx_enet_shared_driver);
-	if (ret)
-		return ret;
+	priv = netdev_priv(dev);
+	kdev = &priv->pdev->dev;
 
-	ret = platform_driver_register(&bcm63xx_enet_driver);
+	/* mask all interrupts and request them */
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+
+	ret = request_irq(priv->irq_rx, bcm_enet_isr_dma,
+			  IRQF_DISABLED, dev->name, dev);
 	if (ret)
-		platform_driver_unregister(&bcm63xx_enet_shared_driver);
+		goto out_freeirq;
+
+	if (priv->irq_tx != -1) {
+		ret = request_irq(priv->irq_tx, bcm_enet_isr_dma,
+				  IRQF_DISABLED, dev->name, dev);
+		if (ret)
+			goto out_freeirq_rx;
+	}
+
+	/* allocate rx dma ring */
+	size = priv->rx_ring_size * sizeof(struct bcm_enet_desc);
+	p = dma_alloc_coherent(kdev, size, &priv->rx_desc_dma, GFP_KERNEL);
+	if (!p) {
+		dev_err(kdev, "cannot allocate rx ring %u\n", size);
+		ret = -ENOMEM;
+		goto out_freeirq_tx;
+	}
+
+	memset(p, 0, size);
+	priv->rx_desc_alloc_size = size;
+	priv->rx_desc_cpu = p;
+
+	/* allocate tx dma ring */
+	size = priv->tx_ring_size * sizeof(struct bcm_enet_desc);
+	p = dma_alloc_coherent(kdev, size, &priv->tx_desc_dma, GFP_KERNEL);
+	if (!p) {
+		dev_err(kdev, "cannot allocate tx ring\n");
+		ret = -ENOMEM;
+		goto out_free_rx_ring;
+	}
+
+	memset(p, 0, size);
+	priv->tx_desc_alloc_size = size;
+	priv->tx_desc_cpu = p;
+
+	priv->tx_skb = kzalloc(sizeof(struct sk_buff *) * priv->tx_ring_size,
+			       GFP_KERNEL);
+	if (!priv->tx_skb) {
+		dev_err(kdev, "cannot allocate rx skb queue\n");
+		ret = -ENOMEM;
+		goto out_free_tx_ring;
+	}
+
+	priv->tx_desc_count = priv->tx_ring_size;
+	priv->tx_dirty_desc = 0;
+	priv->tx_curr_desc = 0;
+	spin_lock_init(&priv->tx_lock);
+
+	/* init & fill rx ring with skbs */
+	priv->rx_skb = kzalloc(sizeof(struct sk_buff *) * priv->rx_ring_size,
+			       GFP_KERNEL);
+	if (!priv->rx_skb) {
+		dev_err(kdev, "cannot allocate rx skb queue\n");
+		ret = -ENOMEM;
+		goto out_free_tx_skb;
+	}
+
+	priv->rx_desc_count = 0;
+	priv->rx_dirty_desc = 0;
+	priv->rx_curr_desc = 0;
+
+	/* disable all ports */
+	for (i = 0; i < priv->num_ports; i++) {
+		enetsw_writeb(priv, ENETSW_PORTOV_ENABLE_MASK,
+			      ENETSW_PORTOV_REG(i));
+		enetsw_writeb(priv, ENETSW_PTCTRL_RXDIS_MASK |
+			      ENETSW_PTCTRL_TXDIS_MASK,
+			      ENETSW_PTCTRL_REG(i));
+
+		priv->sw_port_link[i] = 0;
+	}
+
+	/* reset mib */
+	val = enetsw_readb(priv, ENETSW_GMCR_REG);
+	val |= ENETSW_GMCR_RST_MIB_MASK;
+	enetsw_writeb(priv, val, ENETSW_GMCR_REG);
+	mdelay(1);
+	val &= ~ENETSW_GMCR_RST_MIB_MASK;
+	enetsw_writeb(priv, val, ENETSW_GMCR_REG);
+	mdelay(1);
+
+	/* force CPU port state */
+	val = enetsw_readb(priv, ENETSW_IMPOV_REG);
+	val |= ENETSW_IMPOV_FORCE_MASK | ENETSW_IMPOV_LINKUP_MASK;
+	enetsw_writeb(priv, val, ENETSW_IMPOV_REG);
+
+	/* enable switch forward engine */
+	val = enetsw_readb(priv, ENETSW_SWMODE_REG);
+	val |= ENETSW_SWMODE_FWD_EN_MASK;
+	enetsw_writeb(priv, val, ENETSW_SWMODE_REG);
+
+	/* enable jumbo on all ports */
+	enetsw_writel(priv, 0x1ff, ENETSW_JMBCTL_PORT_REG);
+	enetsw_writew(priv, 9728, ENETSW_JMBCTL_MAXSIZE_REG);
+
+	/* initialize flow control buffer allocation */
+	enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
+			ENETDMA_BUFALLOC_REG(priv->rx_chan));
+
+	if (bcm_enet_refill_rx(dev)) {
+		dev_err(kdev, "cannot allocate rx skb queue\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	/* write rx & tx ring addresses */
+	enet_dmas_writel(priv, priv->rx_desc_dma,
+			 ENETDMAS_RSTART_REG(priv->rx_chan));
+	enet_dmas_writel(priv, priv->tx_desc_dma,
+			 ENETDMAS_RSTART_REG(priv->tx_chan));
+
+	/* clear remaining state ram for rx & tx channel */
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->rx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->tx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->rx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->tx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->rx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->tx_chan));
+
+	/* set dma maximum burst len */
+	enet_dmac_writel(priv, priv->dma_maxburst,
+			 ENETDMAC_MAXBURST_REG(priv->rx_chan));
+	enet_dmac_writel(priv, priv->dma_maxburst,
+			 ENETDMAC_MAXBURST_REG(priv->tx_chan));
+
+	/* set flow control low/high threshold to 1/3 / 2/3 */
+	val = priv->rx_ring_size / 3;
+	enet_dma_writel(priv, val, ENETDMA_FLOWCL_REG(priv->rx_chan));
+	val = (priv->rx_ring_size * 2) / 3;
+	enet_dma_writel(priv, val, ENETDMA_FLOWCH_REG(priv->rx_chan));
+
+	/* all set, enable mac and interrupts, start dma engine and
+	 * kick rx dma channel
+	 */
+	wmb();
+	enet_dma_writel(priv, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG);
+	enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
+			 ENETDMAC_CHANCFG_REG(priv->rx_chan));
+
+	/* watch "packet transferred" interrupt in rx and tx */
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IR_REG(priv->rx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IR_REG(priv->tx_chan));
+
+	/* make sure we enable napi before rx interrupt  */
+	napi_enable(&priv->napi);
+
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IRMASK_REG(priv->rx_chan));
+	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
+			 ENETDMAC_IRMASK_REG(priv->tx_chan));
+
+	netif_carrier_on(dev);
+	netif_start_queue(dev);
+
+	/* apply override config for bypass_link ports here. */
+	for (i = 0; i < priv->num_ports; i++) {
+		struct bcm63xx_enetsw_port *port;
+		u8 override;
+		port = &priv->used_ports[i];
+		if (!port->used)
+			continue;
+
+		if (!port->bypass_link)
+			continue;
+
+		override = ENETSW_PORTOV_ENABLE_MASK |
+			ENETSW_PORTOV_LINKUP_MASK;
+
+		switch (port->force_speed) {
+		case 1000:
+			override |= ENETSW_IMPOV_1000_MASK;
+			break;
+		case 100:
+			override |= ENETSW_IMPOV_100_MASK;
+			break;
+		case 10:
+			break;
+		default:
+			pr_warn("invalid forced speed on port %s: assume 10\n",
+			       port->name);
+			break;
+		}
+
+		if (port->force_duplex_full)
+			override |= ENETSW_IMPOV_FDX_MASK;
+
+
+		enetsw_writeb(priv, override, ENETSW_PORTOV_REG(i));
+		enetsw_writeb(priv, 0, ENETSW_PTCTRL_REG(i));
+	}
+
+	/* start phy polling timer */
+	init_timer(&priv->swphy_poll);
+	priv->swphy_poll.function = swphy_poll_timer;
+	priv->swphy_poll.data = (unsigned long)priv;
+	priv->swphy_poll.expires = jiffies;
+	add_timer(&priv->swphy_poll);
+	return 0;
+
+out:
+	for (i = 0; i < priv->rx_ring_size; i++) {
+		struct bcm_enet_desc *desc;
+
+		if (!priv->rx_skb[i])
+			continue;
+
+		desc = &priv->rx_desc_cpu[i];
+		dma_unmap_single(kdev, desc->address, priv->rx_skb_size,
+				 DMA_FROM_DEVICE);
+		kfree_skb(priv->rx_skb[i]);
+	}
+	kfree(priv->rx_skb);
+
+out_free_tx_skb:
+	kfree(priv->tx_skb);
+
+out_free_tx_ring:
+	dma_free_coherent(kdev, priv->tx_desc_alloc_size,
+			  priv->tx_desc_cpu, priv->tx_desc_dma);
+
+out_free_rx_ring:
+	dma_free_coherent(kdev, priv->rx_desc_alloc_size,
+			  priv->rx_desc_cpu, priv->rx_desc_dma);
+
+out_freeirq_tx:
+	if (priv->irq_tx != -1)
+		free_irq(priv->irq_tx, dev);
+
+out_freeirq_rx:
+	free_irq(priv->irq_rx, dev);
+
+out_freeirq:
+	return ret;
+}
+
+/* stop callback */
+static int bcm_enetsw_stop(struct net_device *dev)
+{
+	struct bcm_enet_priv *priv;
+	struct device *kdev;
+	int i;
+
+	priv = netdev_priv(dev);
+	kdev = &priv->pdev->dev;
+
+	del_timer_sync(&priv->swphy_poll);
+	netif_stop_queue(dev);
+	napi_disable(&priv->napi);
+	del_timer_sync(&priv->rx_timeout);
+
+	/* mask all interrupts */
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+
+	/* disable dma & mac */
+	bcm_enet_disable_dma(priv, priv->tx_chan);
+	bcm_enet_disable_dma(priv, priv->rx_chan);
+
+	/* force reclaim of all tx buffers */
+	bcm_enet_tx_reclaim(dev, 1);
+
+	/* free the rx skb ring */
+	for (i = 0; i < priv->rx_ring_size; i++) {
+		struct bcm_enet_desc *desc;
+
+		if (!priv->rx_skb[i])
+			continue;
+
+		desc = &priv->rx_desc_cpu[i];
+		dma_unmap_single(kdev, desc->address, priv->rx_skb_size,
+				 DMA_FROM_DEVICE);
+		kfree_skb(priv->rx_skb[i]);
+	}
+
+	/* free remaining allocated memory */
+	kfree(priv->rx_skb);
+	kfree(priv->tx_skb);
+	dma_free_coherent(kdev, priv->rx_desc_alloc_size,
+			  priv->rx_desc_cpu, priv->rx_desc_dma);
+	dma_free_coherent(kdev, priv->tx_desc_alloc_size,
+			  priv->tx_desc_cpu, priv->tx_desc_dma);
+	if (priv->irq_tx != -1)
+		free_irq(priv->irq_tx, dev);
+	free_irq(priv->irq_rx, dev);
+
+	return 0;
+}
+
+/* try to sort out phy external status by walking the used_port field
+ * in the bcm_enet_priv structure. in case the phy address is not
+ * assigned to any physical port on the switch, assume it is external
+ * (and yell at the user).
+ */
+static int bcm_enetsw_phy_is_external(struct bcm_enet_priv *priv, int phy_id)
+{
+	int i;
+
+	for (i = 0; i < priv->num_ports; ++i) {
+		if (!priv->used_ports[i].used)
+			continue;
+		if (priv->used_ports[i].phy_id == phy_id)
+			return bcm_enet_port_is_rgmii(i);
+	}
+
+	printk_once(KERN_WARNING  "bcm63xx_enet: could not find a used port with phy_id %i, assuming phy is external\n",
+		    phy_id);
+	return 1;
+}
+
+/* can't use bcmenet_sw_mdio_read directly as we need to sort out
+ * external/internal status of the given phy_id first.
+ */
+static int bcm_enetsw_mii_mdio_read(struct net_device *dev, int phy_id,
+				    int location)
+{
+	struct bcm_enet_priv *priv;
+
+	priv = netdev_priv(dev);
+	return bcmenet_sw_mdio_read(priv,
+				    bcm_enetsw_phy_is_external(priv, phy_id),
+				    phy_id, location);
+}
+
+/* can't use bcmenet_sw_mdio_write directly as we need to sort out
+ * external/internal status of the given phy_id first.
+ */
+static void bcm_enetsw_mii_mdio_write(struct net_device *dev, int phy_id,
+				      int location,
+				      int val)
+{
+	struct bcm_enet_priv *priv;
+
+	priv = netdev_priv(dev);
+	bcmenet_sw_mdio_write(priv, bcm_enetsw_phy_is_external(priv, phy_id),
+			      phy_id, location, val);
+}
+
+static int bcm_enetsw_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+	struct mii_if_info mii;
+
+	mii.dev = dev;
+	mii.mdio_read = bcm_enetsw_mii_mdio_read;
+	mii.mdio_write = bcm_enetsw_mii_mdio_write;
+	mii.phy_id = 0;
+	mii.phy_id_mask = 0x3f;
+	mii.reg_num_mask = 0x1f;
+	return generic_mii_ioctl(&mii, if_mii(rq), cmd, NULL);
+
+}
+
+static const struct net_device_ops bcm_enetsw_ops = {
+	.ndo_open		= bcm_enetsw_open,
+	.ndo_stop		= bcm_enetsw_stop,
+	.ndo_start_xmit		= bcm_enet_start_xmit,
+	.ndo_change_mtu		= bcm_enet_change_mtu,
+	.ndo_do_ioctl		= bcm_enetsw_ioctl,
+};
+
+
+static const struct bcm_enet_stats bcm_enetsw_gstrings_stats[] = {
+	{ "rx_packets", DEV_STAT(rx_packets), -1 },
+	{ "tx_packets",	DEV_STAT(tx_packets), -1 },
+	{ "rx_bytes", DEV_STAT(rx_bytes), -1 },
+	{ "tx_bytes", DEV_STAT(tx_bytes), -1 },
+	{ "rx_errors", DEV_STAT(rx_errors), -1 },
+	{ "tx_errors", DEV_STAT(tx_errors), -1 },
+	{ "rx_dropped",	DEV_STAT(rx_dropped), -1 },
+	{ "tx_dropped",	DEV_STAT(tx_dropped), -1 },
+
+	{ "tx_good_octets", GEN_STAT(mib.tx_gd_octets), ETHSW_MIB_RX_GD_OCT },
+	{ "tx_unicast", GEN_STAT(mib.tx_unicast), ETHSW_MIB_RX_BRDCAST },
+	{ "tx_broadcast", GEN_STAT(mib.tx_brdcast), ETHSW_MIB_RX_BRDCAST },
+	{ "tx_multicast", GEN_STAT(mib.tx_mult), ETHSW_MIB_RX_MULT },
+	{ "tx_64_octets", GEN_STAT(mib.tx_64), ETHSW_MIB_RX_64 },
+	{ "tx_65_127_oct", GEN_STAT(mib.tx_65_127), ETHSW_MIB_RX_65_127 },
+	{ "tx_128_255_oct", GEN_STAT(mib.tx_128_255), ETHSW_MIB_RX_128_255 },
+	{ "tx_256_511_oct", GEN_STAT(mib.tx_256_511), ETHSW_MIB_RX_256_511 },
+	{ "tx_512_1023_oct", GEN_STAT(mib.tx_512_1023), ETHSW_MIB_RX_512_1023},
+	{ "tx_1024_1522_oct", GEN_STAT(mib.tx_1024_max),
+	  ETHSW_MIB_RX_1024_1522 },
+	{ "tx_1523_2047_oct", GEN_STAT(mib.tx_1523_2047),
+	  ETHSW_MIB_RX_1523_2047 },
+	{ "tx_2048_4095_oct", GEN_STAT(mib.tx_2048_4095),
+	  ETHSW_MIB_RX_2048_4095 },
+	{ "tx_4096_8191_oct", GEN_STAT(mib.tx_4096_8191),
+	  ETHSW_MIB_RX_4096_8191 },
+	{ "tx_8192_9728_oct", GEN_STAT(mib.tx_8192_9728),
+	  ETHSW_MIB_RX_8192_9728 },
+	{ "tx_oversize", GEN_STAT(mib.tx_ovr), ETHSW_MIB_RX_OVR },
+	{ "tx_oversize_drop", GEN_STAT(mib.tx_ovr), ETHSW_MIB_RX_OVR_DISC },
+	{ "tx_dropped",	GEN_STAT(mib.tx_drop), ETHSW_MIB_RX_DROP },
+	{ "tx_undersize", GEN_STAT(mib.tx_underrun), ETHSW_MIB_RX_UND },
+	{ "tx_pause", GEN_STAT(mib.tx_pause), ETHSW_MIB_RX_PAUSE },
+
+	{ "rx_good_octets", GEN_STAT(mib.rx_gd_octets), ETHSW_MIB_TX_ALL_OCT },
+	{ "rx_broadcast", GEN_STAT(mib.rx_brdcast), ETHSW_MIB_TX_BRDCAST },
+	{ "rx_multicast", GEN_STAT(mib.rx_mult), ETHSW_MIB_TX_MULT },
+	{ "rx_unicast", GEN_STAT(mib.rx_unicast), ETHSW_MIB_TX_MULT },
+	{ "rx_pause", GEN_STAT(mib.rx_pause), ETHSW_MIB_TX_PAUSE },
+	{ "rx_dropped", GEN_STAT(mib.rx_drop), ETHSW_MIB_TX_DROP_PKTS },
+
+};
+
+#define BCM_ENETSW_STATS_LEN	\
+	(sizeof(bcm_enetsw_gstrings_stats) / sizeof(struct bcm_enet_stats))
+
+static void bcm_enetsw_get_strings(struct net_device *netdev,
+				   u32 stringset, u8 *data)
+{
+	int i;
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < BCM_ENETSW_STATS_LEN; i++) {
+			memcpy(data + i * ETH_GSTRING_LEN,
+			       bcm_enetsw_gstrings_stats[i].stat_string,
+			       ETH_GSTRING_LEN);
+		}
+		break;
+	}
+}
+
+static int bcm_enetsw_get_sset_count(struct net_device *netdev,
+				     int string_set)
+{
+	switch (string_set) {
+	case ETH_SS_STATS:
+		return BCM_ENETSW_STATS_LEN;
+	default:
+		return -EINVAL;
+	}
+}
+
+static void bcm_enetsw_get_drvinfo(struct net_device *netdev,
+				   struct ethtool_drvinfo *drvinfo)
+{
+	strncpy(drvinfo->driver, bcm_enet_driver_name, 32);
+	strncpy(drvinfo->version, bcm_enet_driver_version, 32);
+	strncpy(drvinfo->fw_version, "N/A", 32);
+	strncpy(drvinfo->bus_info, "bcm63xx", 32);
+	drvinfo->n_stats = BCM_ENETSW_STATS_LEN;
+}
+
+static void bcm_enetsw_get_ethtool_stats(struct net_device *netdev,
+					 struct ethtool_stats *stats,
+					 u64 *data)
+{
+	struct bcm_enet_priv *priv;
+	int i;
+
+	priv = netdev_priv(netdev);
+
+	for (i = 0; i < BCM_ENETSW_STATS_LEN; i++) {
+		const struct bcm_enet_stats *s;
+		u32 lo, hi;
+		char *p;
+		int reg;
+
+		s = &bcm_enetsw_gstrings_stats[i];
+
+		reg = s->mib_reg;
+		if (reg == -1)
+			continue;
+
+		lo = enetsw_readl(priv, ENETSW_MIB_REG(reg));
+		p = (char *)priv + s->stat_offset;
+
+		if (s->sizeof_stat == sizeof(u64)) {
+			hi = enetsw_readl(priv, ENETSW_MIB_REG(reg + 1));
+			*(u64 *)p = ((u64)hi << 32 | lo);
+		} else {
+			*(u32 *)p = lo;
+		}
+	}
+
+	for (i = 0; i < BCM_ENETSW_STATS_LEN; i++) {
+		const struct bcm_enet_stats *s;
+		char *p;
+
+		s = &bcm_enetsw_gstrings_stats[i];
+
+		if (s->mib_reg == -1)
+			p = (char *)&netdev->stats + s->stat_offset;
+		else
+			p = (char *)priv + s->stat_offset;
+
+		data[i] = (s->sizeof_stat == sizeof(u64)) ?
+			*(u64 *)p : *(u32 *)p;
+	}
+}
+
+static void bcm_enetsw_get_ringparam(struct net_device *dev,
+				     struct ethtool_ringparam *ering)
+{
+	struct bcm_enet_priv *priv;
+
+	priv = netdev_priv(dev);
+
+	/* rx/tx ring is actually only limited by memory */
+	ering->rx_max_pending = 8192;
+	ering->tx_max_pending = 8192;
+	ering->rx_mini_max_pending = 0;
+	ering->rx_jumbo_max_pending = 0;
+	ering->rx_pending = priv->rx_ring_size;
+	ering->tx_pending = priv->tx_ring_size;
+}
+
+static int bcm_enetsw_set_ringparam(struct net_device *dev,
+				    struct ethtool_ringparam *ering)
+{
+	struct bcm_enet_priv *priv;
+	int was_running;
+
+	priv = netdev_priv(dev);
+
+	was_running = 0;
+	if (netif_running(dev)) {
+		bcm_enetsw_stop(dev);
+		was_running = 1;
+	}
+
+	priv->rx_ring_size = ering->rx_pending;
+	priv->tx_ring_size = ering->tx_pending;
+
+	if (was_running) {
+		int err;
+
+		err = bcm_enetsw_open(dev);
+		if (err)
+			dev_close(dev);
+	}
+	return 0;
+}
+
+static struct ethtool_ops bcm_enetsw_ethtool_ops = {
+	.get_strings		= bcm_enetsw_get_strings,
+	.get_sset_count		= bcm_enetsw_get_sset_count,
+	.get_ethtool_stats      = bcm_enetsw_get_ethtool_stats,
+	.get_drvinfo		= bcm_enetsw_get_drvinfo,
+	.get_ringparam		= bcm_enetsw_get_ringparam,
+	.set_ringparam		= bcm_enetsw_set_ringparam,
+};
+
+/* allocate netdevice, request register memory and register device. */
+static int bcm_enetsw_probe(struct platform_device *pdev)
+{
+	struct bcm_enet_priv *priv;
+	struct net_device *dev;
+	struct bcm63xx_enetsw_platform_data *pd;
+	struct resource *res_mem;
+	int ret, irq_rx, irq_tx;
+
+	/* stop if shared driver failed, assume driver->probe will be
+	 * called in the same order we register devices (correct ?)
+	 */
+	if (!bcm_enet_shared_base[0])
+		return -ENODEV;
+
+	res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	irq_rx = platform_get_irq(pdev, 0);
+	irq_tx = platform_get_irq(pdev, 1);
+	if (!res_mem || irq_rx < 0)
+		return -ENODEV;
+
+	ret = 0;
+	dev = alloc_etherdev(sizeof(*priv));
+	if (!dev)
+		return -ENOMEM;
+	priv = netdev_priv(dev);
+	memset(priv, 0, sizeof(*priv));
+
+	/* initialize default and fetch platform data */
+	priv->enet_is_sw = true;
+	priv->irq_rx = irq_rx;
+	priv->irq_tx = irq_tx;
+	priv->rx_ring_size = BCMENET_DEF_RX_DESC;
+	priv->tx_ring_size = BCMENET_DEF_TX_DESC;
+	priv->dma_maxburst = BCMENETSW_DMA_MAXBURST;
+
+	pd = pdev->dev.platform_data;
+	if (pd) {
+		memcpy(dev->dev_addr, pd->mac_addr, ETH_ALEN);
+		memcpy(priv->used_ports, pd->used_ports,
+		       sizeof(pd->used_ports));
+		priv->num_ports = pd->num_ports;
+	}
+
+	ret = compute_hw_mtu(priv, dev->mtu);
+	if (ret)
+		goto out;
+
+	if (!request_mem_region(res_mem->start, resource_size(res_mem),
+				"bcm63xx_enetsw")) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	priv->base = ioremap(res_mem->start, resource_size(res_mem));
+	if (priv->base == NULL) {
+		ret = -ENOMEM;
+		goto out_release_mem;
+	}
+
+	priv->mac_clk = clk_get(&pdev->dev, "enetsw");
+	if (IS_ERR(priv->mac_clk)) {
+		ret = PTR_ERR(priv->mac_clk);
+		goto out_unmap;
+	}
+	clk_enable(priv->mac_clk);
+
+	priv->rx_chan = 0;
+	priv->tx_chan = 1;
+	spin_lock_init(&priv->rx_lock);
+
+	/* init rx timeout (used for oom) */
+	init_timer(&priv->rx_timeout);
+	priv->rx_timeout.function = bcm_enet_refill_rx_timer;
+	priv->rx_timeout.data = (unsigned long)dev;
+
+	/* register netdevice */
+	dev->netdev_ops = &bcm_enetsw_ops;
+	netif_napi_add(dev, &priv->napi, bcm_enet_poll, 16);
+	SET_ETHTOOL_OPS(dev, &bcm_enetsw_ethtool_ops);
+	SET_NETDEV_DEV(dev, &pdev->dev);
+
+	spin_lock_init(&priv->enetsw_mdio_lock);
+
+	ret = register_netdev(dev);
+	if (ret)
+		goto out_put_clk;
+
+	netif_carrier_off(dev);
+	platform_set_drvdata(pdev, dev);
+	priv->pdev = pdev;
+	priv->net_dev = dev;
+
+	return 0;
+
+out_put_clk:
+	clk_put(priv->mac_clk);
+
+out_unmap:
+	iounmap(priv->base);
+
+out_release_mem:
+	release_mem_region(res_mem->start, resource_size(res_mem));
+out:
+	free_netdev(dev);
+	return ret;
+}
+
+
+/* exit func, stops hardware and unregisters netdevice */
+static int bcm_enetsw_remove(struct platform_device *pdev)
+{
+	struct bcm_enet_priv *priv;
+	struct net_device *dev;
+	struct resource *res;
+
+	/* stop netdevice */
+	dev = platform_get_drvdata(pdev);
+	priv = netdev_priv(dev);
+	unregister_netdev(dev);
+
+	/* release device resources */
+	iounmap(priv->base);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	release_mem_region(res->start, resource_size(res));
+
+	platform_set_drvdata(pdev, NULL);
+	free_netdev(dev);
+	return 0;
+}
+
+struct platform_driver bcm63xx_enetsw_driver = {
+	.probe	= bcm_enetsw_probe,
+	.remove	= bcm_enetsw_remove,
+	.driver	= {
+		.name	= "bcm63xx_enetsw",
+		.owner  = THIS_MODULE,
+	},
+};
+
+/* reserve & remap memory space shared between all macs */
+static int bcm_enet_shared_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	void __iomem *p[3];
+	unsigned int i;
+
+	memset(bcm_enet_shared_base, 0, sizeof(bcm_enet_shared_base));
+
+	for (i = 0; i < 3; i++) {
+		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+		p[i] = devm_ioremap_resource(&pdev->dev, res);
+		if (!p[i])
+			return -ENOMEM;
+	}
+
+	memcpy(bcm_enet_shared_base, p, sizeof(bcm_enet_shared_base));
+
+	return 0;
+}
+
+static int bcm_enet_shared_remove(struct platform_device *pdev)
+{
+	return 0;
+}
+
+/* this "shared" driver is needed because both macs share a single
+ * address space
+ */
+struct platform_driver bcm63xx_enet_shared_driver = {
+	.probe	= bcm_enet_shared_probe,
+	.remove	= bcm_enet_shared_remove,
+	.driver	= {
+		.name	= "bcm63xx_enet_shared",
+		.owner  = THIS_MODULE,
+	},
+};
+
+/* entry point */
+static int __init bcm_enet_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&bcm63xx_enet_shared_driver);
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&bcm63xx_enet_driver);
+	if (ret)
+		platform_driver_unregister(&bcm63xx_enet_shared_driver);
+
+	ret = platform_driver_register(&bcm63xx_enetsw_driver);
+	if (ret) {
+		platform_driver_unregister(&bcm63xx_enet_driver);
+		platform_driver_unregister(&bcm63xx_enet_shared_driver);
+	}
 
 	return ret;
 }
@@ -1959,6 +2873,7 @@ static int __init bcm_enet_init(void)
 static void __exit bcm_enet_exit(void)
 {
 	platform_driver_unregister(&bcm63xx_enet_driver);
+	platform_driver_unregister(&bcm63xx_enetsw_driver);
 	platform_driver_unregister(&bcm63xx_enet_shared_driver);
 }
 
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.h b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
index 133d585..721ffba 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
@@ -18,6 +18,7 @@
 
 /* maximum burst len for dma (4 bytes unit) */
 #define BCMENET_DMA_MAXBURST	16
+#define BCMENETSW_DMA_MAXBURST	8
 
 /* tx transmit threshold (4 bytes unit), fifo is 256 bytes, the value
  * must be low enough so that a DMA transfer of above burst length can
@@ -84,11 +85,60 @@
 #define ETH_MIB_RX_CNTRL			54
 
 
+/*
+ * SW MIB Counters register definitions
+*/
+#define ETHSW_MIB_TX_ALL_OCT			0
+#define ETHSW_MIB_TX_DROP_PKTS			2
+#define ETHSW_MIB_TX_QOS_PKTS			3
+#define ETHSW_MIB_TX_BRDCAST			4
+#define ETHSW_MIB_TX_MULT			5
+#define ETHSW_MIB_TX_UNI			6
+#define ETHSW_MIB_TX_COL			7
+#define ETHSW_MIB_TX_1_COL			8
+#define ETHSW_MIB_TX_M_COL			9
+#define ETHSW_MIB_TX_DEF			10
+#define ETHSW_MIB_TX_LATE			11
+#define ETHSW_MIB_TX_EX_COL			12
+#define ETHSW_MIB_TX_PAUSE			14
+#define ETHSW_MIB_TX_QOS_OCT			15
+
+#define ETHSW_MIB_RX_ALL_OCT			17
+#define ETHSW_MIB_RX_UND			19
+#define ETHSW_MIB_RX_PAUSE			20
+#define ETHSW_MIB_RX_64				21
+#define ETHSW_MIB_RX_65_127			22
+#define ETHSW_MIB_RX_128_255			23
+#define ETHSW_MIB_RX_256_511			24
+#define ETHSW_MIB_RX_512_1023			25
+#define ETHSW_MIB_RX_1024_1522			26
+#define ETHSW_MIB_RX_OVR			27
+#define ETHSW_MIB_RX_JAB			28
+#define ETHSW_MIB_RX_ALIGN			29
+#define ETHSW_MIB_RX_CRC			30
+#define ETHSW_MIB_RX_GD_OCT			31
+#define ETHSW_MIB_RX_DROP			33
+#define ETHSW_MIB_RX_UNI			34
+#define ETHSW_MIB_RX_MULT			35
+#define ETHSW_MIB_RX_BRDCAST			36
+#define ETHSW_MIB_RX_SA_CHANGE			37
+#define ETHSW_MIB_RX_FRAG			38
+#define ETHSW_MIB_RX_OVR_DISC			39
+#define ETHSW_MIB_RX_SYM			40
+#define ETHSW_MIB_RX_QOS_PKTS			41
+#define ETHSW_MIB_RX_QOS_OCT			42
+#define ETHSW_MIB_RX_1523_2047			44
+#define ETHSW_MIB_RX_2048_4095			45
+#define ETHSW_MIB_RX_4096_8191			46
+#define ETHSW_MIB_RX_8192_9728			47
+
+
 struct bcm_enet_mib_counters {
 	u64 tx_gd_octets;
 	u32 tx_gd_pkts;
 	u32 tx_all_octets;
 	u32 tx_all_pkts;
+	u32 tx_unicast;
 	u32 tx_brdcast;
 	u32 tx_mult;
 	u32 tx_64;
@@ -97,7 +147,12 @@ struct bcm_enet_mib_counters {
 	u32 tx_256_511;
 	u32 tx_512_1023;
 	u32 tx_1024_max;
+	u32 tx_1523_2047;
+	u32 tx_2048_4095;
+	u32 tx_4096_8191;
+	u32 tx_8192_9728;
 	u32 tx_jab;
+	u32 tx_drop;
 	u32 tx_ovr;
 	u32 tx_frag;
 	u32 tx_underrun;
@@ -114,6 +169,7 @@ struct bcm_enet_mib_counters {
 	u32 rx_all_octets;
 	u32 rx_all_pkts;
 	u32 rx_brdcast;
+	u32 rx_unicast;
 	u32 rx_mult;
 	u32 rx_64;
 	u32 rx_65_127;
@@ -197,6 +253,9 @@ struct bcm_enet_priv {
 	/* number of dma desc in tx ring */
 	int tx_ring_size;
 
+	/* maximum dma burst size */
+	int dma_maxburst;
+
 	/* cpu view of rx dma ring */
 	struct bcm_enet_desc *tx_desc_cpu;
 
@@ -269,6 +328,18 @@ struct bcm_enet_priv {
 
 	/* maximum hardware transmit/receive size */
 	unsigned int hw_mtu;
+
+	bool enet_is_sw;
+
+	/* port mapping for switch devices */
+	int num_ports;
+	struct bcm63xx_enetsw_port used_ports[ENETSW_MAX_PORT];
+	int sw_port_link[ENETSW_MAX_PORT];
+
+	/* used to poll switch port state */
+	struct timer_list swphy_poll;
+	spinlock_t enetsw_mdio_lock;
 };
 
+
 #endif /* ! BCM63XX_ENET_H_ */
-- 
cgit v0.10.2


From af12fa6e46aa651e7b86a4c4117b562518fef184 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Mon, 10 Jun 2013 11:39:41 +0300
Subject: net: add napi_id and hash

Adds a napi_id and a hashing mechanism to lookup a napi by id.
This will be used by subsequent patches to implement low latency
Ethernet device polling.
Based on a code sample by Eric Dumazet.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 8f967e3..39bbd46 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -324,12 +324,15 @@ struct napi_struct {
 	struct sk_buff		*gro_list;
 	struct sk_buff		*skb;
 	struct list_head	dev_list;
+	struct hlist_node	napi_hash_node;
+	unsigned int		napi_id;
 };
 
 enum {
 	NAPI_STATE_SCHED,	/* Poll is scheduled */
 	NAPI_STATE_DISABLE,	/* Disable pending */
 	NAPI_STATE_NPSVC,	/* Netpoll - don't dequeue from poll_list */
+	NAPI_STATE_HASHED,	/* In NAPI hash */
 };
 
 enum gro_result {
@@ -446,6 +449,32 @@ extern void __napi_complete(struct napi_struct *n);
 extern void napi_complete(struct napi_struct *n);
 
 /**
+ *	napi_by_id - lookup a NAPI by napi_id
+ *	@napi_id: hashed napi_id
+ *
+ * lookup @napi_id in napi_hash table
+ * must be called under rcu_read_lock()
+ */
+extern struct napi_struct *napi_by_id(unsigned int napi_id);
+
+/**
+ *	napi_hash_add - add a NAPI to global hashtable
+ *	@napi: napi context
+ *
+ * generate a new napi_id and store a @napi under it in napi_hash
+ */
+extern void napi_hash_add(struct napi_struct *napi);
+
+/**
+ *	napi_hash_del - remove a NAPI from global table
+ *	@napi: napi context
+ *
+ * Warning: caller must observe rcu grace period
+ * before freeing memory containing @napi
+ */
+extern void napi_hash_del(struct napi_struct *napi);
+
+/**
  *	napi_disable - prevent NAPI from scheduling
  *	@n: napi context
  *
diff --git a/net/core/dev.c b/net/core/dev.c
index 9c18557..fa007db 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -129,6 +129,7 @@
 #include <linux/inetdevice.h>
 #include <linux/cpu_rmap.h>
 #include <linux/static_key.h>
+#include <linux/hashtable.h>
 
 #include "net-sysfs.h"
 
@@ -166,6 +167,12 @@ static struct list_head offload_base __read_mostly;
 DEFINE_RWLOCK(dev_base_lock);
 EXPORT_SYMBOL(dev_base_lock);
 
+/* protects napi_hash addition/deletion and napi_gen_id */
+static DEFINE_SPINLOCK(napi_hash_lock);
+
+static unsigned int napi_gen_id;
+static DEFINE_HASHTABLE(napi_hash, 8);
+
 seqcount_t devnet_rename_seq;
 
 static inline void dev_base_seq_inc(struct net *net)
@@ -4136,6 +4143,58 @@ void napi_complete(struct napi_struct *n)
 }
 EXPORT_SYMBOL(napi_complete);
 
+/* must be called under rcu_read_lock(), as we dont take a reference */
+struct napi_struct *napi_by_id(unsigned int napi_id)
+{
+	unsigned int hash = napi_id % HASH_SIZE(napi_hash);
+	struct napi_struct *napi;
+
+	hlist_for_each_entry_rcu(napi, &napi_hash[hash], napi_hash_node)
+		if (napi->napi_id == napi_id)
+			return napi;
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(napi_by_id);
+
+void napi_hash_add(struct napi_struct *napi)
+{
+	if (!test_and_set_bit(NAPI_STATE_HASHED, &napi->state)) {
+
+		spin_lock(&napi_hash_lock);
+
+		/* 0 is not a valid id, we also skip an id that is taken
+		 * we expect both events to be extremely rare
+		 */
+		napi->napi_id = 0;
+		while (!napi->napi_id) {
+			napi->napi_id = ++napi_gen_id;
+			if (napi_by_id(napi->napi_id))
+				napi->napi_id = 0;
+		}
+
+		hlist_add_head_rcu(&napi->napi_hash_node,
+			&napi_hash[napi->napi_id % HASH_SIZE(napi_hash)]);
+
+		spin_unlock(&napi_hash_lock);
+	}
+}
+EXPORT_SYMBOL_GPL(napi_hash_add);
+
+/* Warning : caller is responsible to make sure rcu grace period
+ * is respected before freeing memory containing @napi
+ */
+void napi_hash_del(struct napi_struct *napi)
+{
+	spin_lock(&napi_hash_lock);
+
+	if (test_and_clear_bit(NAPI_STATE_HASHED, &napi->state))
+		hlist_del_rcu(&napi->napi_hash_node);
+
+	spin_unlock(&napi_hash_lock);
+}
+EXPORT_SYMBOL_GPL(napi_hash_del);
+
 void netif_napi_add(struct net_device *dev, struct napi_struct *napi,
 		    int (*poll)(struct napi_struct *, int), int weight)
 {
-- 
cgit v0.10.2


From 060212928670593fb89243640bf05cf89560b023 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Mon, 10 Jun 2013 11:39:50 +0300
Subject: net: add low latency socket poll

Adds an ndo_ll_poll method and the code that supports it.
This method can be used by low latency applications to busy-poll
Ethernet device queues directly from the socket code.
sysctl_net_ll_poll controls how many microseconds to poll.
Default is zero (disabled).
Individual protocol support will be added by subsequent patches.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Tested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index c1f8640..85ab72d 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -50,6 +50,13 @@ The maximum number of packets that kernel can handle on a NAPI interrupt,
 it's a Per-CPU variable.
 Default: 64
 
+low_latency_poll
+----------------
+Low latency busy poll timeout. (needs CONFIG_NET_LL_RX_POLL)
+Approximate time in us to spin waiting for packets on the device queue.
+Recommended value is 50. May increase power usage.
+Default: 0 (off)
+
 rmem_default
 ------------
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 39bbd46..2ecb96d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -972,6 +972,9 @@ struct net_device_ops {
 						     gfp_t gfp);
 	void			(*ndo_netpoll_cleanup)(struct net_device *dev);
 #endif
+#ifdef CONFIG_NET_LL_RX_POLL
+	int			(*ndo_ll_poll)(struct napi_struct *dev);
+#endif
 	int			(*ndo_set_vf_mac)(struct net_device *dev,
 						  int queue, u8 *mac);
 	int			(*ndo_set_vf_vlan)(struct net_device *dev,
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 9995834..400d82a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -386,6 +386,7 @@ typedef unsigned char *sk_buff_data_t;
  *	@no_fcs:  Request NIC to treat last 4 bytes as Ethernet FCS
  *	@dma_cookie: a cookie to one of several possible DMA operations
  *		done by skb DMA functions
+  *	@napi_id: id of the NAPI struct this skb came from
  *	@secmark: security marking
  *	@mark: Generic packet mark
  *	@dropcount: total number of sk_receive_queue overflows
@@ -500,8 +501,11 @@ struct sk_buff {
 	/* 7/9 bit hole (depending on ndisc_nodetype presence) */
 	kmemcheck_bitfield_end(flags2);
 
-#ifdef CONFIG_NET_DMA
-	dma_cookie_t		dma_cookie;
+#if defined CONFIG_NET_DMA || defined CONFIG_NET_LL_RX_POLL
+	union {
+		unsigned int	napi_id;
+		dma_cookie_t	dma_cookie;
+	};
 #endif
 #ifdef CONFIG_NETWORK_SECMARK
 	__u32			secmark;
diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
new file mode 100644
index 0000000..bc262f8
--- /dev/null
+++ b/include/net/ll_poll.h
@@ -0,0 +1,148 @@
+/*
+ * Low Latency Sockets
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Author: Eliezer Tamir
+ *
+ * Contact Information:
+ * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ */
+
+/*
+ * For now this depends on CONFIG_X86_TSC
+ */
+
+#ifndef _LINUX_NET_LL_POLL_H
+#define _LINUX_NET_LL_POLL_H
+
+#include <linux/netdevice.h>
+#include <net/ip.h>
+
+#ifdef CONFIG_NET_LL_RX_POLL
+
+struct napi_struct;
+extern unsigned long sysctl_net_ll_poll __read_mostly;
+
+/* return values from ndo_ll_poll */
+#define LL_FLUSH_FAILED		-1
+#define LL_FLUSH_BUSY		-2
+
+/* we don't mind a ~2.5% imprecision */
+#define TSC_MHZ (tsc_khz >> 10)
+
+static inline cycles_t ll_end_time(void)
+{
+	return TSC_MHZ * ACCESS_ONCE(sysctl_net_ll_poll) + get_cycles();
+}
+
+static inline bool sk_valid_ll(struct sock *sk)
+{
+	return sysctl_net_ll_poll && sk->sk_napi_id &&
+	       !need_resched() && !signal_pending(current);
+}
+
+static inline bool can_poll_ll(cycles_t end_time)
+{
+	return !time_after((unsigned long)get_cycles(),
+			    (unsigned long)end_time);
+}
+
+static inline bool sk_poll_ll(struct sock *sk, int nonblock)
+{
+	cycles_t end_time = ll_end_time();
+	const struct net_device_ops *ops;
+	struct napi_struct *napi;
+	int rc = false;
+
+	/*
+	 * rcu read lock for napi hash
+	 * bh so we don't race with net_rx_action
+	 */
+	rcu_read_lock_bh();
+
+	napi = napi_by_id(sk->sk_napi_id);
+	if (!napi)
+		goto out;
+
+	ops = napi->dev->netdev_ops;
+	if (!ops->ndo_ll_poll)
+		goto out;
+
+	do {
+
+		rc = ops->ndo_ll_poll(napi);
+
+		if (rc == LL_FLUSH_FAILED)
+			break; /* permanent failure */
+
+		if (rc > 0)
+			/* local bh are disabled so it is ok to use _BH */
+			NET_ADD_STATS_BH(sock_net(sk),
+					 LINUX_MIB_LOWLATENCYRXPACKETS, rc);
+
+	} while (skb_queue_empty(&sk->sk_receive_queue)
+			&& can_poll_ll(end_time) && !nonblock);
+
+	rc = !skb_queue_empty(&sk->sk_receive_queue);
+out:
+	rcu_read_unlock_bh();
+	return rc;
+}
+
+/* used in the NIC receive handler to mark the skb */
+static inline void skb_mark_ll(struct sk_buff *skb, struct napi_struct *napi)
+{
+	skb->napi_id = napi->napi_id;
+}
+
+/* used in the protocol hanlder to propagate the napi_id to the socket */
+static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
+{
+	sk->sk_napi_id = skb->napi_id;
+}
+
+#else /* CONFIG_NET_LL_RX_POLL */
+
+static inline cycles_t ll_end_time(void)
+{
+	return 0;
+}
+
+static inline bool sk_valid_ll(struct sock *sk)
+{
+	return false;
+}
+
+static inline bool sk_poll_ll(struct sock *sk, int nonblock)
+{
+	return false;
+}
+
+static inline void skb_mark_ll(struct sk_buff *skb, struct napi_struct *napi)
+{
+}
+
+static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
+{
+}
+
+static inline bool can_poll_ll(cycles_t end_time)
+{
+	return false;
+}
+
+#endif /* CONFIG_NET_LL_RX_POLL */
+#endif /* _LINUX_NET_LL_POLL_H */
diff --git a/include/net/sock.h b/include/net/sock.h
index 66772cf..ac8e181 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -229,6 +229,7 @@ struct cg_proto;
   *	@sk_omem_alloc: "o" is "option" or "other"
   *	@sk_wmem_queued: persistent queue size
   *	@sk_forward_alloc: space allocated forward
+  *	@sk_napi_id: id of the last napi context to receive data for sk
   *	@sk_allocation: allocation mode
   *	@sk_sndbuf: size of send buffer in bytes
   *	@sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE,
@@ -325,6 +326,9 @@ struct sock {
 #ifdef CONFIG_RPS
 	__u32			sk_rxhash;
 #endif
+#ifdef CONFIG_NET_LL_RX_POLL
+	unsigned int		sk_napi_id;
+#endif
 	atomic_t		sk_drops;
 	int			sk_rcvbuf;
 
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index df2e8b4..26cbf76 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -253,6 +253,7 @@ enum
 	LINUX_MIB_TCPFASTOPENLISTENOVERFLOW,	/* TCPFastOpenListenOverflow */
 	LINUX_MIB_TCPFASTOPENCOOKIEREQD,	/* TCPFastOpenCookieReqd */
 	LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES, /* TCPSpuriousRtxHostQueues */
+	LINUX_MIB_LOWLATENCYRXPACKETS,		/* LowLatencyRxPackets */
 	__LINUX_MIB_MAX
 };
 
diff --git a/net/Kconfig b/net/Kconfig
index 523e43e..d6a9ce6 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -243,6 +243,18 @@ config NETPRIO_CGROUP
 	  Cgroup subsystem for use in assigning processes to network priorities on
 	  a per-interface basis
 
+config NET_LL_RX_POLL
+	bool "Low Latency Receive Poll"
+	depends on X86_TSC
+	default n
+	---help---
+	  Support Low Latency Receive Queue Poll.
+	  (For network card drivers which support this option.)
+	  When waiting for data in read or poll call directly into the the device driver
+	  to flush packets which may be pending on the device queues into the stack.
+
+	  If unsure, say N.
+
 config BQL
 	boolean
 	depends on SYSFS
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 73f57a0..4a4181e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -733,6 +733,10 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->vlan_tci		= old->vlan_tci;
 
 	skb_copy_secmark(new, old);
+
+#ifdef CONFIG_NET_LL_RX_POLL
+	new->napi_id	= old->napi_id;
+#endif
 }
 
 /*
diff --git a/net/core/sock.c b/net/core/sock.c
index 88868a9..788c0da 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -139,6 +139,8 @@
 #include <net/tcp.h>
 #endif
 
+#include <net/ll_poll.h>
+
 static DEFINE_MUTEX(proto_list_mutex);
 static LIST_HEAD(proto_list);
 
@@ -2284,6 +2286,10 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 
 	sk->sk_stamp = ktime_set(-1L, 0);
 
+#ifdef CONFIG_NET_LL_RX_POLL
+	sk->sk_napi_id		=	0;
+#endif
+
 	/*
 	 * Before updating sk_refcnt, we must commit prior changes to memory
 	 * (Documentation/RCU/rculist_nulls.txt for details)
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 741db5fc..4b48f39 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -19,6 +19,7 @@
 #include <net/ip.h>
 #include <net/sock.h>
 #include <net/net_ratelimit.h>
+#include <net/ll_poll.h>
 
 static int one = 1;
 
@@ -284,6 +285,15 @@ static struct ctl_table net_core_table[] = {
 		.proc_handler	= flow_limit_table_len_sysctl
 	},
 #endif /* CONFIG_NET_FLOW_LIMIT */
+#ifdef CONFIG_NET_LL_RX_POLL
+	{
+		.procname	= "low_latency_poll",
+		.data		= &sysctl_net_ll_poll,
+		.maxlen		= sizeof(unsigned long),
+		.mode		= 0644,
+		.proc_handler	= proc_doulongvec_minmax
+	},
+#endif
 #endif /* CONFIG_NET */
 	{
 		.procname	= "netdev_budget",
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 2a5bf86..6577a11 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -273,6 +273,7 @@ static const struct snmp_mib snmp4_net_list[] = {
 	SNMP_MIB_ITEM("TCPFastOpenListenOverflow", LINUX_MIB_TCPFASTOPENLISTENOVERFLOW),
 	SNMP_MIB_ITEM("TCPFastOpenCookieReqd", LINUX_MIB_TCPFASTOPENCOOKIEREQD),
 	SNMP_MIB_ITEM("TCPSpuriousRtxHostQueues", LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES),
+	SNMP_MIB_ITEM("LowLatencyRxPackets", LINUX_MIB_LOWLATENCYRXPACKETS),
 	SNMP_MIB_SENTINEL
 };
 
diff --git a/net/socket.c b/net/socket.c
index 3ebdcb8..21fd29f 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -104,6 +104,12 @@
 #include <linux/route.h>
 #include <linux/sockios.h>
 #include <linux/atalk.h>
+#include <net/ll_poll.h>
+
+#ifdef CONFIG_NET_LL_RX_POLL
+unsigned long sysctl_net_ll_poll __read_mostly;
+EXPORT_SYMBOL_GPL(sysctl_net_ll_poll);
+#endif
 
 static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
 static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
-- 
cgit v0.10.2


From a5b50476f77a8fcc8055c955720d05a7c2d9c532 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Mon, 10 Jun 2013 11:40:00 +0300
Subject: udp: add low latency socket poll support

Add upport for busy-polling on UDP sockets.
In __udp[46]_lib_rcv add a call to sk_mark_ll() to copy the napi_id
from the skb into the sk.
This is done at the earliest possible moment, right after we identify
which socket this skb is for.
In __skb_recv_datagram When there is no data and the user
tries to read we busy poll.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Tested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/datagram.c b/net/core/datagram.c
index b71423d..9cbaba9 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -56,6 +56,7 @@
 #include <net/sock.h>
 #include <net/tcp_states.h>
 #include <trace/events/skb.h>
+#include <net/ll_poll.h>
 
 /*
  *	Is a socket 'connection oriented' ?
@@ -207,6 +208,9 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags,
 		}
 		spin_unlock_irqrestore(&queue->lock, cpu_flags);
 
+		if (sk_valid_ll(sk) && sk_poll_ll(sk, flags & MSG_DONTWAIT))
+			continue;
+
 		/* User doesn't want to wait */
 		error = -EAGAIN;
 		if (!timeo)
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index c7338ec..2955b25 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -109,6 +109,7 @@
 #include <trace/events/udp.h>
 #include <linux/static_key.h>
 #include <trace/events/skb.h>
+#include <net/ll_poll.h>
 #include "udp_impl.h"
 
 struct udp_table udp_table __read_mostly;
@@ -1709,7 +1710,10 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 	sk = __udp4_lib_lookup_skb(skb, uh->source, uh->dest, udptable);
 
 	if (sk != NULL) {
-		int ret = udp_queue_rcv_skb(sk, skb);
+		int ret;
+
+		sk_mark_ll(sk, skb);
+		ret = udp_queue_rcv_skb(sk, skb);
 		sock_put(sk);
 
 		/* a return value > 0 means to resubmit the input, but
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index b580853..f77e34c 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -46,6 +46,7 @@
 #include <net/ip6_checksum.h>
 #include <net/xfrm.h>
 #include <net/inet6_hashtables.h>
+#include <net/ll_poll.h>
 
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
@@ -841,7 +842,10 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 	 */
 	sk = __udp6_lib_lookup_skb(skb, uh->source, uh->dest, udptable);
 	if (sk != NULL) {
-		int ret = udpv6_queue_rcv_skb(sk, skb);
+		int ret;
+
+		sk_mark_ll(sk, skb);
+		ret = udpv6_queue_rcv_skb(sk, skb);
 		sock_put(sk);
 
 		/* a return value > 0 means to resubmit the input, but
-- 
cgit v0.10.2


From d30e383bb856f614ddb5bbbb5a7d3f86240e41ec Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Mon, 10 Jun 2013 11:40:10 +0300
Subject: tcp: add low latency socket poll support.

Adds low latency socket poll support for TCP.
In tcp_v[46]_rcv() add a call to sk_mark_ll() to copy the napi_id
from the skb to the sk.
In tcp_recvmsg(), when there is no data in the socket we busy-poll.
This is a good example of how to add busy-poll support to more protocols.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Tested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index bc42469..46ed9af 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -279,6 +279,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
+#include <net/ll_poll.h>
 
 int sysctl_tcp_fin_timeout __read_mostly = TCP_FIN_TIMEOUT;
 
@@ -1553,6 +1554,10 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	struct sk_buff *skb;
 	u32 urg_hole = 0;
 
+	if (sk_valid_ll(sk) && skb_queue_empty(&sk->sk_receive_queue)
+	    && (sk->sk_state == TCP_ESTABLISHED))
+		sk_poll_ll(sk, nonblock);
+
 	lock_sock(sk);
 
 	err = -ENOTCONN;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 289039b4..1063bb8 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -75,6 +75,7 @@
 #include <net/netdma.h>
 #include <net/secure_seq.h>
 #include <net/tcp_memcontrol.h>
+#include <net/ll_poll.h>
 
 #include <linux/inet.h>
 #include <linux/ipv6.h>
@@ -1993,6 +1994,7 @@ process:
 	if (sk_filter(sk, skb))
 		goto discard_and_relse;
 
+	sk_mark_ll(sk, skb);
 	skb->dev = NULL;
 
 	bh_lock_sock_nested(sk);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 0a17ed9..5cffa5c 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -63,6 +63,7 @@
 #include <net/inet_common.h>
 #include <net/secure_seq.h>
 #include <net/tcp_memcontrol.h>
+#include <net/ll_poll.h>
 
 #include <asm/uaccess.h>
 
@@ -1498,6 +1499,7 @@ process:
 	if (sk_filter(sk, skb))
 		goto discard_and_relse;
 
+	sk_mark_ll(sk, skb);
 	skb->dev = NULL;
 
 	bh_lock_sock_nested(sk);
-- 
cgit v0.10.2


From 5a85e737f30ce7b939a34d93cca816400342208c Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Mon, 10 Jun 2013 11:40:20 +0300
Subject: ixgbe: add support for ndo_ll_poll

Add the ixgbe driver code implementing ndo_ll_poll.
Adds ndo_ll_poll method and locking between it and the napi poll.
When receiving a packet we use skb_mark_ll to record the napi it came from.
Add each napi to the napi_hash right after netif_napi_add().

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index ca93238..e9d9862 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -52,6 +52,8 @@
 #include <linux/dca.h>
 #endif
 
+#include <net/ll_poll.h>
+
 /* common prefix used by pr_<> macros */
 #undef pr_fmt
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -356,9 +358,127 @@ struct ixgbe_q_vector {
 	struct rcu_head rcu;	/* to avoid race with update stats on free */
 	char name[IFNAMSIZ + 9];
 
+#ifdef CONFIG_NET_LL_RX_POLL
+	unsigned int state;
+#define IXGBE_QV_STATE_IDLE        0
+#define IXGBE_QV_STATE_NAPI	   1    /* NAPI owns this QV */
+#define IXGBE_QV_STATE_POLL	   2    /* poll owns this QV */
+#define IXGBE_QV_LOCKED (IXGBE_QV_STATE_NAPI | IXGBE_QV_STATE_POLL)
+#define IXGBE_QV_STATE_NAPI_YIELD  4    /* NAPI yielded this QV */
+#define IXGBE_QV_STATE_POLL_YIELD  8    /* poll yielded this QV */
+#define IXGBE_QV_YIELD (IXGBE_QV_STATE_NAPI_YIELD | IXGBE_QV_STATE_POLL_YIELD)
+#define IXGBE_QV_USER_PEND (IXGBE_QV_STATE_POLL | IXGBE_QV_STATE_POLL_YIELD)
+	spinlock_t lock;
+#endif  /* CONFIG_NET_LL_RX_POLL */
+
 	/* for dynamic allocation of rings associated with this q_vector */
 	struct ixgbe_ring ring[0] ____cacheline_internodealigned_in_smp;
 };
+#ifdef CONFIG_NET_LL_RX_POLL
+static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector)
+{
+
+	spin_lock_init(&q_vector->lock);
+	q_vector->state = IXGBE_QV_STATE_IDLE;
+}
+
+/* called from the device poll routine to get ownership of a q_vector */
+static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
+{
+	int rc = true;
+	spin_lock(&q_vector->lock);
+	if (q_vector->state & IXGBE_QV_LOCKED) {
+		WARN_ON(q_vector->state & IXGBE_QV_STATE_NAPI);
+		q_vector->state |= IXGBE_QV_STATE_NAPI_YIELD;
+		rc = false;
+	} else
+		/* we don't care if someone yielded */
+		q_vector->state = IXGBE_QV_STATE_NAPI;
+	spin_unlock(&q_vector->lock);
+	return rc;
+}
+
+/* returns true is someone tried to get the qv while napi had it */
+static inline bool ixgbe_qv_unlock_napi(struct ixgbe_q_vector *q_vector)
+{
+	int rc = false;
+	spin_lock(&q_vector->lock);
+	WARN_ON(q_vector->state & (IXGBE_QV_STATE_POLL |
+			       IXGBE_QV_STATE_NAPI_YIELD));
+
+	if (q_vector->state & IXGBE_QV_STATE_POLL_YIELD)
+		rc = true;
+	q_vector->state = IXGBE_QV_STATE_IDLE;
+	spin_unlock(&q_vector->lock);
+	return rc;
+}
+
+/* called from ixgbe_low_latency_poll() */
+static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector)
+{
+	int rc = true;
+	spin_lock_bh(&q_vector->lock);
+	if ((q_vector->state & IXGBE_QV_LOCKED)) {
+		q_vector->state |= IXGBE_QV_STATE_POLL_YIELD;
+		rc = false;
+	} else
+		/* preserve yield marks */
+		q_vector->state |= IXGBE_QV_STATE_POLL;
+	spin_unlock_bh(&q_vector->lock);
+	return rc;
+}
+
+/* returns true if someone tried to get the qv while it was locked */
+static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector)
+{
+	int rc = false;
+	spin_lock_bh(&q_vector->lock);
+	WARN_ON(q_vector->state & (IXGBE_QV_STATE_NAPI));
+
+	if (q_vector->state & IXGBE_QV_STATE_POLL_YIELD)
+		rc = true;
+	q_vector->state = IXGBE_QV_STATE_IDLE;
+	spin_unlock_bh(&q_vector->lock);
+	return rc;
+}
+
+/* true if a socket is polling, even if it did not get the lock */
+static inline bool ixgbe_qv_ll_polling(struct ixgbe_q_vector *q_vector)
+{
+	WARN_ON(!(q_vector->state & IXGBE_QV_LOCKED));
+	return q_vector->state & IXGBE_QV_USER_PEND;
+}
+#else /* CONFIG_NET_LL_RX_POLL */
+static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector)
+{
+}
+
+static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
+{
+	return true;
+}
+
+static inline bool ixgbe_qv_unlock_napi(struct ixgbe_q_vector *q_vector)
+{
+	return false;
+}
+
+static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector)
+{
+	return false;
+}
+
+static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector)
+{
+	return false;
+}
+
+static inline bool ixgbe_qv_ll_polling(struct ixgbe_q_vector *q_vector)
+{
+	return false;
+}
+#endif /* CONFIG_NET_LL_RX_POLL */
+
 #ifdef CONFIG_IXGBE_HWMON
 
 #define IXGBE_HWMON_TYPE_LOC		0
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
index ef5f7a6..90b4e10 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
@@ -811,6 +811,7 @@ static int ixgbe_alloc_q_vector(struct ixgbe_adapter *adapter,
 	/* initialize NAPI */
 	netif_napi_add(adapter->netdev, &q_vector->napi,
 		       ixgbe_poll, 64);
+	napi_hash_add(&q_vector->napi);
 
 	/* tie q_vector and adapter together */
 	adapter->q_vector[v_idx] = q_vector;
@@ -931,6 +932,7 @@ static void ixgbe_free_q_vector(struct ixgbe_adapter *adapter, int v_idx)
 		adapter->rx_ring[ring->queue_index] = NULL;
 
 	adapter->q_vector[v_idx] = NULL;
+	napi_hash_del(&q_vector->napi);
 	netif_napi_del(&q_vector->napi);
 
 	/*
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index d30fbdd..9a7dc40 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1504,7 +1504,9 @@ static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector,
 {
 	struct ixgbe_adapter *adapter = q_vector->adapter;
 
-	if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL))
+	if (ixgbe_qv_ll_polling(q_vector))
+		netif_receive_skb(skb);
+	else if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL))
 		napi_gro_receive(&q_vector->napi, skb);
 	else
 		netif_rx(skb);
@@ -1892,9 +1894,9 @@ dma_sync:
  * expensive overhead for IOMMU access this provides a means of avoiding
  * it by maintaining the mapping of the page to the syste.
  *
- * Returns true if all work is completed without reaching budget
+ * Returns amount of work completed
  **/
-static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
+static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 			       struct ixgbe_ring *rx_ring,
 			       const int budget)
 {
@@ -1976,6 +1978,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 		}
 
 #endif /* IXGBE_FCOE */
+		skb_mark_ll(skb, &q_vector->napi);
 		ixgbe_rx_skb(q_vector, skb);
 
 		/* update budget accounting */
@@ -1992,9 +1995,37 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
 	if (cleaned_count)
 		ixgbe_alloc_rx_buffers(rx_ring, cleaned_count);
 
-	return (total_rx_packets < budget);
+	return total_rx_packets;
 }
 
+#ifdef CONFIG_NET_LL_RX_POLL
+/* must be called with local_bh_disable()d */
+static int ixgbe_low_latency_recv(struct napi_struct *napi)
+{
+	struct ixgbe_q_vector *q_vector =
+			container_of(napi, struct ixgbe_q_vector, napi);
+	struct ixgbe_adapter *adapter = q_vector->adapter;
+	struct ixgbe_ring  *ring;
+	int found = 0;
+
+	if (test_bit(__IXGBE_DOWN, &adapter->state))
+		return LL_FLUSH_FAILED;
+
+	if (!ixgbe_qv_lock_poll(q_vector))
+		return LL_FLUSH_BUSY;
+
+	ixgbe_for_each_ring(ring, q_vector->rx) {
+		found = ixgbe_clean_rx_irq(q_vector, ring, 4);
+		if (found)
+			break;
+	}
+
+	ixgbe_qv_unlock_poll(q_vector);
+
+	return found;
+}
+#endif	/* CONFIG_NET_LL_RX_POLL */
+
 /**
  * ixgbe_configure_msix - Configure MSI-X hardware
  * @adapter: board private structure
@@ -2550,6 +2581,9 @@ int ixgbe_poll(struct napi_struct *napi, int budget)
 	ixgbe_for_each_ring(ring, q_vector->tx)
 		clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring);
 
+	if (!ixgbe_qv_lock_napi(q_vector))
+		return budget;
+
 	/* attempt to distribute budget to each queue fairly, but don't allow
 	 * the budget to go below 1 because we'll exit polling */
 	if (q_vector->rx.count > 1)
@@ -2558,9 +2592,10 @@ int ixgbe_poll(struct napi_struct *napi, int budget)
 		per_ring_budget = budget;
 
 	ixgbe_for_each_ring(ring, q_vector->rx)
-		clean_complete &= ixgbe_clean_rx_irq(q_vector, ring,
-						     per_ring_budget);
+		clean_complete &= (ixgbe_clean_rx_irq(q_vector, ring,
+				   per_ring_budget) < per_ring_budget);
 
+	ixgbe_qv_unlock_napi(q_vector);
 	/* If all work not completed, return budget and keep polling */
 	if (!clean_complete)
 		return budget;
@@ -3747,16 +3782,25 @@ static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter)
 {
 	int q_idx;
 
-	for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++)
+	for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) {
+		ixgbe_qv_init_lock(adapter->q_vector[q_idx]);
 		napi_enable(&adapter->q_vector[q_idx]->napi);
+	}
 }
 
 static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter)
 {
 	int q_idx;
 
-	for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++)
+	local_bh_disable(); /* for ixgbe_qv_lock_napi() */
+	for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) {
 		napi_disable(&adapter->q_vector[q_idx]->napi);
+		while (!ixgbe_qv_lock_napi(adapter->q_vector[q_idx])) {
+			pr_info("QV %d locked\n", q_idx);
+			mdelay(1);
+		}
+	}
+	local_bh_enable();
 }
 
 #ifdef CONFIG_IXGBE_DCB
@@ -7177,6 +7221,9 @@ static const struct net_device_ops ixgbe_netdev_ops = {
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= ixgbe_netpoll,
 #endif
+#ifdef CONFIG_NET_LL_RX_POLL
+	.ndo_ll_poll		= ixgbe_low_latency_recv,
+#endif
 #ifdef IXGBE_FCOE
 	.ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get,
 	.ndo_fcoe_ddp_target = ixgbe_fcoe_ddp_target,
-- 
cgit v0.10.2


From 7e15b90ff9b796d14aa0d1aabc0dbb54632c673c Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Mon, 10 Jun 2013 11:40:31 +0300
Subject: ixgbe: add extra stats for ndo_ll_poll

Add additional statistics to the ixgbe driver for ndo_ll_poll
Defined under LL_EXTENDED_STATS

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index e9d9862..fb098b4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -54,6 +54,9 @@
 
 #include <net/ll_poll.h>
 
+#ifdef CONFIG_NET_LL_RX_POLL
+#define LL_EXTENDED_STATS
+#endif
 /* common prefix used by pr_<> macros */
 #undef pr_fmt
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -184,6 +187,11 @@ struct ixgbe_rx_buffer {
 struct ixgbe_queue_stats {
 	u64 packets;
 	u64 bytes;
+#ifdef LL_EXTENDED_STATS
+	u64 yields;
+	u64 misses;
+	u64 cleaned;
+#endif  /* LL_EXTENDED_STATS */
 };
 
 struct ixgbe_tx_queue_stats {
@@ -391,6 +399,9 @@ static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
 		WARN_ON(q_vector->state & IXGBE_QV_STATE_NAPI);
 		q_vector->state |= IXGBE_QV_STATE_NAPI_YIELD;
 		rc = false;
+#ifdef LL_EXTENDED_STATS
+		q_vector->tx.ring->stats.yields++;
+#endif
 	} else
 		/* we don't care if someone yielded */
 		q_vector->state = IXGBE_QV_STATE_NAPI;
@@ -421,6 +432,9 @@ static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector)
 	if ((q_vector->state & IXGBE_QV_LOCKED)) {
 		q_vector->state |= IXGBE_QV_STATE_POLL_YIELD;
 		rc = false;
+#ifdef LL_EXTENDED_STATS
+		q_vector->rx.ring->stats.yields++;
+#endif
 	} else
 		/* preserve yield marks */
 		q_vector->state |= IXGBE_QV_STATE_POLL;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index d375472..24e2e7a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -1054,6 +1054,12 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
 			data[i] = 0;
 			data[i+1] = 0;
 			i += 2;
+#ifdef LL_EXTENDED_STATS
+			data[i] = 0;
+			data[i+1] = 0;
+			data[i+2] = 0;
+			i += 3;
+#endif
 			continue;
 		}
 
@@ -1063,6 +1069,12 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
 			data[i+1] = ring->stats.bytes;
 		} while (u64_stats_fetch_retry_bh(&ring->syncp, start));
 		i += 2;
+#ifdef LL_EXTENDED_STATS
+		data[i] = ring->stats.yields;
+		data[i+1] = ring->stats.misses;
+		data[i+2] = ring->stats.cleaned;
+		i += 3;
+#endif
 	}
 	for (j = 0; j < IXGBE_NUM_RX_QUEUES; j++) {
 		ring = adapter->rx_ring[j];
@@ -1070,6 +1082,12 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
 			data[i] = 0;
 			data[i+1] = 0;
 			i += 2;
+#ifdef LL_EXTENDED_STATS
+			data[i] = 0;
+			data[i+1] = 0;
+			data[i+2] = 0;
+			i += 3;
+#endif
 			continue;
 		}
 
@@ -1079,6 +1097,12 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
 			data[i+1] = ring->stats.bytes;
 		} while (u64_stats_fetch_retry_bh(&ring->syncp, start));
 		i += 2;
+#ifdef LL_EXTENDED_STATS
+		data[i] = ring->stats.yields;
+		data[i+1] = ring->stats.misses;
+		data[i+2] = ring->stats.cleaned;
+		i += 3;
+#endif
 	}
 
 	for (j = 0; j < IXGBE_MAX_PACKET_BUFFERS; j++) {
@@ -1115,12 +1139,28 @@ static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
 			p += ETH_GSTRING_LEN;
 			sprintf(p, "tx_queue_%u_bytes", i);
 			p += ETH_GSTRING_LEN;
+#ifdef LL_EXTENDED_STATS
+			sprintf(p, "tx_q_%u_napi_yield", i);
+			p += ETH_GSTRING_LEN;
+			sprintf(p, "tx_q_%u_misses", i);
+			p += ETH_GSTRING_LEN;
+			sprintf(p, "tx_q_%u_cleaned", i);
+			p += ETH_GSTRING_LEN;
+#endif /* LL_EXTENDED_STATS */
 		}
 		for (i = 0; i < IXGBE_NUM_RX_QUEUES; i++) {
 			sprintf(p, "rx_queue_%u_packets", i);
 			p += ETH_GSTRING_LEN;
 			sprintf(p, "rx_queue_%u_bytes", i);
 			p += ETH_GSTRING_LEN;
+#ifdef LL_EXTENDED_STATS
+			sprintf(p, "rx_q_%u_ll_poll_yield", i);
+			p += ETH_GSTRING_LEN;
+			sprintf(p, "rx_q_%u_misses", i);
+			p += ETH_GSTRING_LEN;
+			sprintf(p, "rx_q_%u_cleaned", i);
+			p += ETH_GSTRING_LEN;
+#endif /* LL_EXTENDED_STATS */
 		}
 		for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
 			sprintf(p, "tx_pb_%u_pxon", i);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 9a7dc40..047ebaa 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -2016,6 +2016,12 @@ static int ixgbe_low_latency_recv(struct napi_struct *napi)
 
 	ixgbe_for_each_ring(ring, q_vector->rx) {
 		found = ixgbe_clean_rx_irq(q_vector, ring, 4);
+#ifdef LL_EXTENDED_STATS
+		if (found)
+			ring->stats.cleaned += found;
+		else
+			ring->stats.misses++;
+#endif
 		if (found)
 			break;
 	}
-- 
cgit v0.10.2


From 30f3a40f9a2a2869a560a9cb9ef488d10c803e14 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Wed, 5 Jun 2013 20:14:10 +0800
Subject: net: remove last caller of skb_tail_offset() and itself

Similar to the following commits:

commit 00f97da17a0c8d656d0c9 (netpoll: fix position of network header)
commit 525cebedb32a87fa48584 (pktgen: Fix position of ip and udp header)

using skb_tail_offset() seems not correct since the offset
is based on head pointer.

With the last caller removed, skb_tail_offset() can be killed
finally.

Cc: Thomas Graf <tgraf@suug.ch>
Cc: Daniel Borkmann <dborkmann@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 400d82a..a7393ad 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1396,10 +1396,6 @@ static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
 	skb->tail += offset;
 }
 
-static inline unsigned long skb_tail_offset(const struct sk_buff *skb)
-{
-	return skb->tail;
-}
 #else /* NET_SKBUFF_DATA_USES_OFFSET */
 static inline unsigned char *skb_tail_pointer(const struct sk_buff *skb)
 {
@@ -1416,10 +1412,6 @@ static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
 	skb->tail = skb->data + offset;
 }
 
-static inline unsigned long skb_tail_offset(const struct sk_buff *skb)
-{
-	return skb->tail - skb->head;
-}
 #endif /* NET_SKBUFF_DATA_USES_OFFSET */
 
 /*
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index df97f0a..132a096 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -945,7 +945,6 @@ static int ipmr_cache_report(struct mr_table *mrt,
 	struct igmpmsg *msg;
 	struct sock *mroute_sk;
 	int ret;
-	unsigned long tail_offset;
 
 #ifdef CONFIG_IP_PIMSM
 	if (assert == IGMPMSG_WHOLEPKT)
@@ -981,12 +980,7 @@ static int ipmr_cache_report(struct mr_table *mrt,
 
 	/* Copy the IP header */
 
-	tail_offset = skb_tail_offset(skb);
-	if (tail_offset > 0xffff) {
-		kfree_skb(skb);
-		return -EINVAL;
-	}
-	skb_set_network_header(skb, tail_offset);
+	skb_set_network_header(skb, skb->len);
 	skb_put(skb, ihl);
 	skb_copy_to_linear_data(skb, pkt->data, ihl);
 	ip_hdr(skb)->protocol = 0;	/* Flag to the kernel this is a route add */
-- 
cgit v0.10.2


From 9ba18891f75535eca3ef53138b48970eb60f5255 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Wed, 5 Jun 2013 10:08:00 -0400
Subject: bridge: Add flag to control mac learning.

Allow user to control whether mac learning is enabled on the port.
By default, mac learning is enabled.  Disabling mac learning will
cause new dynamic FDB entries to not be created for a particular port.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index b05823c..8643809 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -221,6 +221,7 @@ enum {
 	IFLA_BRPORT_GUARD,	/* bpdu guard              */
 	IFLA_BRPORT_PROTECT,	/* root port protection    */
 	IFLA_BRPORT_FAST_LEAVE,	/* multicast fast leave    */
+	IFLA_BRPORT_LEARNING,	/* mac learning */
 	__IFLA_BRPORT_MAX
 };
 #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 4cdba60..2c08911 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -221,7 +221,7 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br,
 	p->path_cost = port_cost(dev);
 	p->priority = 0x8000 >> BR_PORT_BITS;
 	p->port_no = index;
-	p->flags = 0;
+	p->flags = BR_LEARNING;
 	br_init_port(p);
 	p->state = BR_STATE_DISABLED;
 	br_stp_port_timer_init(p);
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 828e2bc..7e99366 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -75,7 +75,8 @@ int br_handle_frame_finish(struct sk_buff *skb)
 
 	/* insert into forwarding database after filtering to avoid spoofing */
 	br = p->br;
-	br_fdb_update(br, p, eth_hdr(skb)->h_source, vid);
+	if (p->flags & BR_LEARNING)
+		br_fdb_update(br, p, eth_hdr(skb)->h_source, vid);
 
 	if (!is_broadcast_ether_addr(dest) && is_multicast_ether_addr(dest) &&
 	    br_multicast_rcv(br, p, skb))
@@ -142,7 +143,8 @@ static int br_handle_local_finish(struct sk_buff *skb)
 	u16 vid = 0;
 
 	br_vlan_get_tag(skb, &vid);
-	br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid);
+	if (p->flags & BR_LEARNING)
+		br_fdb_update(p->br, p, eth_hdr(skb)->h_source, vid);
 	return 0;	 /* process further */
 }
 
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 8e3abf5..ce902bf 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -30,6 +30,7 @@ static inline size_t br_port_info_size(void)
 		+ nla_total_size(1)	/* IFLA_BRPORT_GUARD */
 		+ nla_total_size(1)	/* IFLA_BRPORT_PROTECT */
 		+ nla_total_size(1)	/* IFLA_BRPORT_FAST_LEAVE */
+		+ nla_total_size(1)	/* IFLA_BRPORT_LEARNING */
 		+ 0;
 }
 
@@ -56,7 +57,8 @@ static int br_port_fill_attrs(struct sk_buff *skb,
 	    nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
 	    nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
 	    nla_put_u8(skb, IFLA_BRPORT_PROTECT, !!(p->flags & BR_ROOT_BLOCK)) ||
-	    nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, !!(p->flags & BR_MULTICAST_FAST_LEAVE)))
+	    nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
+	    nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)))
 		return -EMSGSIZE;
 
 	return 0;
@@ -281,6 +283,7 @@ static const struct nla_policy ifla_brport_policy[IFLA_BRPORT_MAX + 1] = {
 	[IFLA_BRPORT_MODE]	= { .type = NLA_U8 },
 	[IFLA_BRPORT_GUARD]	= { .type = NLA_U8 },
 	[IFLA_BRPORT_PROTECT]	= { .type = NLA_U8 },
+	[IFLA_BRPORT_LEARNING]	= { .type = NLA_U8 },
 };
 
 /* Change the state of the port and notify spanning tree */
@@ -328,6 +331,7 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
 	br_set_port_flag(p, tb, IFLA_BRPORT_GUARD, BR_BPDU_GUARD);
 	br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
 	br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
+	br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
 
 	if (tb[IFLA_BRPORT_COST]) {
 		err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 1b0ac95..04d7f43 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -158,6 +158,7 @@ struct net_bridge_port
 #define BR_ROOT_BLOCK		0x00000004
 #define BR_MULTICAST_FAST_LEAVE	0x00000008
 #define BR_ADMIN_COST		0x00000010
+#define BR_LEARNING		0x00000020
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	u32				multicast_startup_queries_sent;
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index a1ef1b6..707f362 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -158,6 +158,7 @@ static BRPORT_ATTR(flush, S_IWUSR, NULL, store_flush);
 BRPORT_ATTR_FLAG(hairpin_mode, BR_HAIRPIN_MODE);
 BRPORT_ATTR_FLAG(bpdu_guard, BR_BPDU_GUARD);
 BRPORT_ATTR_FLAG(root_block, BR_ROOT_BLOCK);
+BRPORT_ATTR_FLAG(learning, BR_LEARNING);
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
@@ -195,6 +196,7 @@ static const struct brport_attribute *brport_attrs[] = {
 	&brport_attr_hairpin_mode,
 	&brport_attr_bpdu_guard,
 	&brport_attr_root_block,
+	&brport_attr_learning,
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	&brport_attr_multicast_router,
 	&brport_attr_multicast_fast_leave,
-- 
cgit v0.10.2


From 867a59436fc35593ae0e0efcd56cc6d2f8506586 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Wed, 5 Jun 2013 10:08:01 -0400
Subject: bridge: Add a flag to control unicast packet flood.

Add a flag to control flood of unicast traffic.  By default, flood is
on and the bridge will flood unicast traffic if it doesn't know
the destination.  When the flag is turned off, unicast traffic
without an FDB will not be forwarded to the specified port.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 8643809..da05a2698 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -222,6 +222,7 @@ enum {
 	IFLA_BRPORT_PROTECT,	/* root port protection    */
 	IFLA_BRPORT_FAST_LEAVE,	/* multicast fast leave    */
 	IFLA_BRPORT_LEARNING,	/* mac learning */
+	IFLA_BRPORT_UNICAST_FLOOD, /* flood unicast traffic */
 	__IFLA_BRPORT_MAX
 };
 #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 75f3239..2ef6678 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -58,10 +58,10 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 	skb_pull(skb, ETH_HLEN);
 
 	if (is_broadcast_ether_addr(dest))
-		br_flood_deliver(br, skb);
+		br_flood_deliver(br, skb, false);
 	else if (is_multicast_ether_addr(dest)) {
 		if (unlikely(netpoll_tx_running(dev))) {
-			br_flood_deliver(br, skb);
+			br_flood_deliver(br, skb, false);
 			goto out;
 		}
 		if (br_multicast_rcv(br, NULL, skb)) {
@@ -73,11 +73,11 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 		if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb))
 			br_multicast_deliver(mdst, skb);
 		else
-			br_flood_deliver(br, skb);
+			br_flood_deliver(br, skb, false);
 	} else if ((dst = __br_fdb_get(br, dest, vid)) != NULL)
 		br_deliver(dst->dst, skb);
 	else
-		br_flood_deliver(br, skb);
+		br_flood_deliver(br, skb, true);
 
 out:
 	rcu_read_unlock();
diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index 092b20e..4b81b14 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -174,7 +174,8 @@ out:
 static void br_flood(struct net_bridge *br, struct sk_buff *skb,
 		     struct sk_buff *skb0,
 		     void (*__packet_hook)(const struct net_bridge_port *p,
-					   struct sk_buff *skb))
+					   struct sk_buff *skb),
+		     bool unicast)
 {
 	struct net_bridge_port *p;
 	struct net_bridge_port *prev;
@@ -182,6 +183,9 @@ static void br_flood(struct net_bridge *br, struct sk_buff *skb,
 	prev = NULL;
 
 	list_for_each_entry_rcu(p, &br->port_list, list) {
+		/* Do not flood unicast traffic to ports that turn it off */
+		if (unicast && !(p->flags & BR_FLOOD))
+			continue;
 		prev = maybe_deliver(prev, p, skb, __packet_hook);
 		if (IS_ERR(prev))
 			goto out;
@@ -203,16 +207,16 @@ out:
 
 
 /* called with rcu_read_lock */
-void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb)
+void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast)
 {
-	br_flood(br, skb, NULL, __br_deliver);
+	br_flood(br, skb, NULL, __br_deliver, unicast);
 }
 
 /* called under bridge lock */
 void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
-		      struct sk_buff *skb2)
+		      struct sk_buff *skb2, bool unicast)
 {
-	br_flood(br, skb, skb2, __br_forward);
+	br_flood(br, skb, skb2, __br_forward, unicast);
 }
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 2c08911..5623be6 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -221,7 +221,7 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br,
 	p->path_cost = port_cost(dev);
 	p->priority = 0x8000 >> BR_PORT_BITS;
 	p->port_no = index;
-	p->flags = BR_LEARNING;
+	p->flags = BR_LEARNING | BR_FLOOD;
 	br_init_port(p);
 	p->state = BR_STATE_DISABLED;
 	br_stp_port_timer_init(p);
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 7e99366..1b8b8b8 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -65,6 +65,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
 	struct net_bridge_fdb_entry *dst;
 	struct net_bridge_mdb_entry *mdst;
 	struct sk_buff *skb2;
+	bool unicast = true;
 	u16 vid = 0;
 
 	if (!p || p->state == BR_STATE_DISABLED)
@@ -95,9 +96,10 @@ int br_handle_frame_finish(struct sk_buff *skb)
 
 	dst = NULL;
 
-	if (is_broadcast_ether_addr(dest))
+	if (is_broadcast_ether_addr(dest)) {
 		skb2 = skb;
-	else if (is_multicast_ether_addr(dest)) {
+		unicast = false;
+	} else if (is_multicast_ether_addr(dest)) {
 		mdst = br_mdb_get(br, skb, vid);
 		if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) {
 			if ((mdst && mdst->mglist) ||
@@ -110,6 +112,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
 		} else
 			skb2 = skb;
 
+		unicast = false;
 		br->dev->stats.multicast++;
 	} else if ((dst = __br_fdb_get(br, dest, vid)) &&
 			dst->is_local) {
@@ -123,7 +126,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
 			dst->used = jiffies;
 			br_forward(dst->dst, skb, skb2);
 		} else
-			br_flood_forward(br, skb, skb2);
+			br_flood_forward(br, skb, skb2, unicast);
 	}
 
 	if (skb2)
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index ce902bf..1fc30ab 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -31,6 +31,7 @@ static inline size_t br_port_info_size(void)
 		+ nla_total_size(1)	/* IFLA_BRPORT_PROTECT */
 		+ nla_total_size(1)	/* IFLA_BRPORT_FAST_LEAVE */
 		+ nla_total_size(1)	/* IFLA_BRPORT_LEARNING */
+		+ nla_total_size(1)	/* IFLA_BRPORT_UNICAST_FLOOD */
 		+ 0;
 }
 
@@ -58,7 +59,8 @@ static int br_port_fill_attrs(struct sk_buff *skb,
 	    nla_put_u8(skb, IFLA_BRPORT_GUARD, !!(p->flags & BR_BPDU_GUARD)) ||
 	    nla_put_u8(skb, IFLA_BRPORT_PROTECT, !!(p->flags & BR_ROOT_BLOCK)) ||
 	    nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, !!(p->flags & BR_MULTICAST_FAST_LEAVE)) ||
-	    nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)))
+	    nla_put_u8(skb, IFLA_BRPORT_LEARNING, !!(p->flags & BR_LEARNING)) ||
+	    nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD, !!(p->flags & BR_FLOOD)))
 		return -EMSGSIZE;
 
 	return 0;
@@ -284,6 +286,7 @@ static const struct nla_policy ifla_brport_policy[IFLA_BRPORT_MAX + 1] = {
 	[IFLA_BRPORT_GUARD]	= { .type = NLA_U8 },
 	[IFLA_BRPORT_PROTECT]	= { .type = NLA_U8 },
 	[IFLA_BRPORT_LEARNING]	= { .type = NLA_U8 },
+	[IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
 };
 
 /* Change the state of the port and notify spanning tree */
@@ -332,6 +335,7 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
 	br_set_port_flag(p, tb, IFLA_BRPORT_FAST_LEAVE, BR_MULTICAST_FAST_LEAVE);
 	br_set_port_flag(p, tb, IFLA_BRPORT_PROTECT, BR_ROOT_BLOCK);
 	br_set_port_flag(p, tb, IFLA_BRPORT_LEARNING, BR_LEARNING);
+	br_set_port_flag(p, tb, IFLA_BRPORT_UNICAST_FLOOD, BR_FLOOD);
 
 	if (tb[IFLA_BRPORT_COST]) {
 		err = br_stp_set_path_cost(p, nla_get_u32(tb[IFLA_BRPORT_COST]));
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 04d7f43..3be89b3 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -159,6 +159,7 @@ struct net_bridge_port
 #define BR_MULTICAST_FAST_LEAVE	0x00000008
 #define BR_ADMIN_COST		0x00000010
 #define BR_LEARNING		0x00000020
+#define BR_FLOOD		0x00000040
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	u32				multicast_startup_queries_sent;
@@ -414,9 +415,10 @@ extern int br_dev_queue_push_xmit(struct sk_buff *skb);
 extern void br_forward(const struct net_bridge_port *to,
 		struct sk_buff *skb, struct sk_buff *skb0);
 extern int br_forward_finish(struct sk_buff *skb);
-extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb);
+extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb,
+			     bool unicast);
 extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
-			     struct sk_buff *skb2);
+			     struct sk_buff *skb2, bool unicast);
 
 /* br_if.c */
 extern void br_port_carrier_check(struct net_bridge_port *p);
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 707f362..2a2cdb7 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -159,6 +159,7 @@ BRPORT_ATTR_FLAG(hairpin_mode, BR_HAIRPIN_MODE);
 BRPORT_ATTR_FLAG(bpdu_guard, BR_BPDU_GUARD);
 BRPORT_ATTR_FLAG(root_block, BR_ROOT_BLOCK);
 BRPORT_ATTR_FLAG(learning, BR_LEARNING);
+BRPORT_ATTR_FLAG(unicast_flood, BR_FLOOD);
 
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
@@ -197,6 +198,7 @@ static const struct brport_attribute *brport_attrs[] = {
 	&brport_attr_bpdu_guard,
 	&brport_attr_root_block,
 	&brport_attr_learning,
+	&brport_attr_unicast_flood,
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	&brport_attr_multicast_router,
 	&brport_attr_multicast_fast_leave,
-- 
cgit v0.10.2


From 8249152c472e10c18936b774737fd58c60335154 Mon Sep 17 00:00:00 2001
From: Li RongQing <roy.qing.li@gmail.com>
Date: Thu, 6 Jun 2013 14:35:18 +0800
Subject: xen-netfront: use skb_partial_csum_set() to simplify the codes

use skb_partial_csum_set() to simplify the codes

Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 62238a0..76a2236 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -858,7 +858,6 @@ static RING_IDX xennet_fill_frags(struct netfront_info *np,
 static int checksum_setup(struct net_device *dev, struct sk_buff *skb)
 {
 	struct iphdr *iph;
-	unsigned char *th;
 	int err = -EPROTO;
 	int recalculate_partial_csum = 0;
 
@@ -883,27 +882,27 @@ static int checksum_setup(struct net_device *dev, struct sk_buff *skb)
 		goto out;
 
 	iph = (void *)skb->data;
-	th = skb->data + 4 * iph->ihl;
-	if (th >= skb_tail_pointer(skb))
-		goto out;
 
-	skb->csum_start = th - skb->head;
 	switch (iph->protocol) {
 	case IPPROTO_TCP:
-		skb->csum_offset = offsetof(struct tcphdr, check);
+		if (!skb_partial_csum_set(skb, 4 * iph->ihl,
+					  offsetof(struct tcphdr, check)))
+			goto out;
 
 		if (recalculate_partial_csum) {
-			struct tcphdr *tcph = (struct tcphdr *)th;
+			struct tcphdr *tcph = tcp_hdr(skb);
 			tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
 							 skb->len - iph->ihl*4,
 							 IPPROTO_TCP, 0);
 		}
 		break;
 	case IPPROTO_UDP:
-		skb->csum_offset = offsetof(struct udphdr, check);
+		if (!skb_partial_csum_set(skb, 4 * iph->ihl,
+					  offsetof(struct udphdr, check)))
+			goto out;
 
 		if (recalculate_partial_csum) {
-			struct udphdr *udph = (struct udphdr *)th;
+			struct udphdr *udph = udp_hdr(skb);
 			udph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
 							 skb->len - iph->ihl*4,
 							 IPPROTO_UDP, 0);
@@ -917,9 +916,6 @@ static int checksum_setup(struct net_device *dev, struct sk_buff *skb)
 		goto out;
 	}
 
-	if ((th + skb->csum_offset + 2) > skb_tail_pointer(skb))
-		goto out;
-
 	err = 0;
 
 out:
-- 
cgit v0.10.2


From da12c90e099789a63073fc82a19542ce54d4efb9 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 6 Jun 2013 14:49:11 +0800
Subject: netlink: Add compare function for netlink_table

As we know, netlink sockets are private resource of
net namespace, they can communicate with each other
only when they in the same net namespace. this works
well until we try to add namespace support for other
subsystems which use netlink.

Don't like ipv4 and route table.., it is not suited to
make these subsytems belong to net namespace, Such as
audit and crypto subsystems,they are more suitable to
user namespace.

So we must have the ability to make the netlink sockets
in same user namespace can communicate with each other.

This patch adds a new function pointer "compare" for
netlink_table, we can decide if the netlink sockets can
communicate with each other through this netlink_table
self-defined compare function.

The behavior isn't changed if we don't provide the compare
function for netlink_table.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 6358da5..f78b430 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -46,6 +46,7 @@ struct netlink_kernel_cfg {
 	void		(*input)(struct sk_buff *skb);
 	struct mutex	*cb_mutex;
 	void		(*bind)(int group);
+	bool		(*compare)(struct net *net, struct sock *sk);
 };
 
 extern struct sock *__netlink_kernel_create(struct net *net, int unit,
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 68c1673..9b6b115 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -858,16 +858,23 @@ netlink_unlock_table(void)
 		wake_up(&nl_table_wait);
 }
 
+static bool netlink_compare(struct net *net, struct sock *sk)
+{
+	return net_eq(sock_net(sk), net);
+}
+
 static struct sock *netlink_lookup(struct net *net, int protocol, u32 portid)
 {
-	struct nl_portid_hash *hash = &nl_table[protocol].hash;
+	struct netlink_table *table = &nl_table[protocol];
+	struct nl_portid_hash *hash = &table->hash;
 	struct hlist_head *head;
 	struct sock *sk;
 
 	read_lock(&nl_table_lock);
 	head = nl_portid_hashfn(hash, portid);
 	sk_for_each(sk, head) {
-		if (net_eq(sock_net(sk), net) && (nlk_sk(sk)->portid == portid)) {
+		if (table->compare(net, sk) &&
+		    (nlk_sk(sk)->portid == portid)) {
 			sock_hold(sk);
 			goto found;
 		}
@@ -980,7 +987,8 @@ netlink_update_listeners(struct sock *sk)
 
 static int netlink_insert(struct sock *sk, struct net *net, u32 portid)
 {
-	struct nl_portid_hash *hash = &nl_table[sk->sk_protocol].hash;
+	struct netlink_table *table = &nl_table[sk->sk_protocol];
+	struct nl_portid_hash *hash = &table->hash;
 	struct hlist_head *head;
 	int err = -EADDRINUSE;
 	struct sock *osk;
@@ -990,7 +998,8 @@ static int netlink_insert(struct sock *sk, struct net *net, u32 portid)
 	head = nl_portid_hashfn(hash, portid);
 	len = 0;
 	sk_for_each(osk, head) {
-		if (net_eq(sock_net(osk), net) && (nlk_sk(osk)->portid == portid))
+		if (table->compare(net, osk) &&
+		    (nlk_sk(osk)->portid == portid))
 			break;
 		len++;
 	}
@@ -1165,6 +1174,7 @@ static int netlink_release(struct socket *sock)
 			kfree_rcu(old, rcu);
 			nl_table[sk->sk_protocol].module = NULL;
 			nl_table[sk->sk_protocol].bind = NULL;
+			nl_table[sk->sk_protocol].compare = NULL;
 			nl_table[sk->sk_protocol].flags = 0;
 			nl_table[sk->sk_protocol].registered = 0;
 		}
@@ -1187,7 +1197,8 @@ static int netlink_autobind(struct socket *sock)
 {
 	struct sock *sk = sock->sk;
 	struct net *net = sock_net(sk);
-	struct nl_portid_hash *hash = &nl_table[sk->sk_protocol].hash;
+	struct netlink_table *table = &nl_table[sk->sk_protocol];
+	struct nl_portid_hash *hash = &table->hash;
 	struct hlist_head *head;
 	struct sock *osk;
 	s32 portid = task_tgid_vnr(current);
@@ -1199,7 +1210,7 @@ retry:
 	netlink_table_grab();
 	head = nl_portid_hashfn(hash, portid);
 	sk_for_each(osk, head) {
-		if (!net_eq(sock_net(osk), net))
+		if (!table->compare(net, osk))
 			continue;
 		if (nlk_sk(osk)->portid == portid) {
 			/* Bind collision, search negative portid values. */
@@ -2315,9 +2326,12 @@ __netlink_kernel_create(struct net *net, int unit, struct module *module,
 		rcu_assign_pointer(nl_table[unit].listeners, listeners);
 		nl_table[unit].cb_mutex = cb_mutex;
 		nl_table[unit].module = module;
+		nl_table[unit].compare = netlink_compare;
 		if (cfg) {
 			nl_table[unit].bind = cfg->bind;
 			nl_table[unit].flags = cfg->flags;
+			if (cfg->compare)
+				nl_table[unit].compare = cfg->compare;
 		}
 		nl_table[unit].registered = 1;
 	} else {
@@ -2740,6 +2754,7 @@ static void *netlink_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	struct sock *s;
 	struct nl_seq_iter *iter;
+	struct net *net;
 	int i, j;
 
 	++*pos;
@@ -2747,11 +2762,12 @@ static void *netlink_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 	if (v == SEQ_START_TOKEN)
 		return netlink_seq_socket_idx(seq, 0);
 
+	net = seq_file_net(seq);
 	iter = seq->private;
 	s = v;
 	do {
 		s = sk_next(s);
-	} while (s && sock_net(s) != seq_file_net(seq));
+	} while (s && !nl_table[s->sk_protocol].compare(net, s));
 	if (s)
 		return s;
 
@@ -2763,7 +2779,8 @@ static void *netlink_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 
 		for (; j <= hash->mask; j++) {
 			s = sk_head(&hash->table[j]);
-			while (s && sock_net(s) != seq_file_net(seq))
+
+			while (s && !nl_table[s->sk_protocol].compare(net, s))
 				s = sk_next(s);
 			if (s) {
 				iter->link = i;
diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h
index ed85222..eaa88d1 100644
--- a/net/netlink/af_netlink.h
+++ b/net/netlink/af_netlink.h
@@ -73,6 +73,7 @@ struct netlink_table {
 	struct mutex		*cb_mutex;
 	struct module		*module;
 	void			(*bind)(int group);
+	bool			(*compare)(struct net *net, struct sock *sock);
 	int			registered;
 };
 
-- 
cgit v0.10.2


From b41abb42bf62a85a32c41dab873220598a6ee266 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20Pan=28=E6=BD=98=E5=8D=AB=E5=B9=B3=29?=
 <panweiping3@gmail.com>
Date: Thu, 6 Jun 2013 21:27:21 +0800
Subject: net: pass correct parameter to skb_headers_offset_update()

Since commit 1a37e412a022(net: Use 16bits for *_headers fields of struct
skbuff), skb->*_header are relative to skb->head,
so copy_skb_header() should not call skb_headers_offset_update() now,
and we should pass correct parameter to skb_headers_offset_update() in
pskb_expand_head() and skb_copy_expand().

Signed-off-by: Weiping Pan <panweiping3@gmail.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 4a4181e..edf3757 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -909,18 +909,8 @@ static void skb_headers_offset_update(struct sk_buff *skb, int off)
 
 static void copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 {
-#ifndef NET_SKBUFF_DATA_USES_OFFSET
-	/*
-	 *	Shift between the two data areas in bytes
-	 */
-	unsigned long offset = new->data - old->data;
-#endif
-
 	__copy_skb_header(new, old);
 
-#ifndef NET_SKBUFF_DATA_USES_OFFSET
-	skb_headers_offset_update(new, offset);
-#endif
 	skb_shinfo(new)->gso_size = skb_shinfo(old)->gso_size;
 	skb_shinfo(new)->gso_segs = skb_shinfo(old)->gso_segs;
 	skb_shinfo(new)->gso_type = skb_shinfo(old)->gso_type;
@@ -1112,7 +1102,7 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 	skb->end      = skb->head + size;
 #endif
 	skb->tail	      += off;
-	skb_headers_offset_update(skb, off);
+	skb_headers_offset_update(skb, nhead);
 	/* Only adjust this if it actually is csum_start rather than csum */
 	if (skb->ip_summed == CHECKSUM_PARTIAL)
 		skb->csum_start += nhead;
@@ -1207,9 +1197,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 	off                  = newheadroom - oldheadroom;
 	if (n->ip_summed == CHECKSUM_PARTIAL)
 		n->csum_start += off;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
+
 	skb_headers_offset_update(n, off);
-#endif
 
 	return n;
 }
-- 
cgit v0.10.2


From 45203a3b380cee28f570475c0d28c169f908c209 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 6 Jun 2013 08:43:22 -0700
Subject: net_sched: add 64bit rate estimators

struct gnet_stats_rate_est contains u32 fields, so the bytes per second
field can wrap at 34360Mbit.

Add a new gnet_stats_rate_est64 structure to get 64bit bps/pps fields,
and switch the kernel to use this structure natively.

This structure is dumped to user space as a new attribute :

TCA_STATS_RATE_EST64

Old tc command will now display the capped bps (to 34360Mbit), instead
of wrapped values, and updated tc command will display correct
information.

Old tc command output, after patch :

eric:~# tc -s -d qd sh dev lo
qdisc pfifo 8001: root refcnt 2 limit 1000p
 Sent 80868245400 bytes 1978837 pkt (dropped 0, overlimits 0 requeues 0)
 rate 34360Mbit 189696pps backlog 0b 0p requeues 0

This patch carefully reorganizes "struct Qdisc" layout to get optimal
performance on SMP.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/act_api.h b/include/net/act_api.h
index 06ef7e9..b8ffac7 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -18,7 +18,7 @@ struct tcf_common {
 	struct tcf_t			tcfc_tm;
 	struct gnet_stats_basic_packed	tcfc_bstats;
 	struct gnet_stats_queue		tcfc_qstats;
-	struct gnet_stats_rate_est	tcfc_rate_est;
+	struct gnet_stats_rate_est64	tcfc_rate_est;
 	spinlock_t			tcfc_lock;
 	struct rcu_head			tcfc_rcu;
 };
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index a79b6cf..cf8439b 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -30,7 +30,7 @@ extern int gnet_stats_copy_basic(struct gnet_dump *d,
 				 struct gnet_stats_basic_packed *b);
 extern int gnet_stats_copy_rate_est(struct gnet_dump *d,
 				    const struct gnet_stats_basic_packed *b,
-				    struct gnet_stats_rate_est *r);
+				    struct gnet_stats_rate_est64 *r);
 extern int gnet_stats_copy_queue(struct gnet_dump *d,
 				 struct gnet_stats_queue *q);
 extern int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
@@ -38,13 +38,13 @@ extern int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
 extern int gnet_stats_finish_copy(struct gnet_dump *d);
 
 extern int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
-			     struct gnet_stats_rate_est *rate_est,
+			     struct gnet_stats_rate_est64 *rate_est,
 			     spinlock_t *stats_lock, struct nlattr *opt);
 extern void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
-			       struct gnet_stats_rate_est *rate_est);
+			       struct gnet_stats_rate_est64 *rate_est);
 extern int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
-				 struct gnet_stats_rate_est *rate_est,
+				 struct gnet_stats_rate_est64 *rate_est,
 				 spinlock_t *stats_lock, struct nlattr *opt);
 extern bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats,
-				 const struct gnet_stats_rate_est *rate_est);
+				 const struct gnet_stats_rate_est64 *rate_est);
 #endif
diff --git a/include/net/netfilter/xt_rateest.h b/include/net/netfilter/xt_rateest.h
index 5a2978d..495c71f 100644
--- a/include/net/netfilter/xt_rateest.h
+++ b/include/net/netfilter/xt_rateest.h
@@ -6,7 +6,7 @@ struct xt_rateest {
 	struct gnet_stats_basic_packed	bstats;
 	spinlock_t			lock;
 	/* keep rstats and lock on same cache line to speedup xt_rateest_mt() */
-	struct gnet_stats_rate_est	rstats;
+	struct gnet_stats_rate_est64	rstats;
 
 	/* following fields not accessed in hot path */
 	struct hlist_node		list;
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index e7f4e21..df56760 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -58,14 +58,12 @@ struct Qdisc {
 				      * multiqueue device.
 				      */
 #define TCQ_F_WARN_NONWC	(1 << 16)
-	int			padded;
+	u32			limit;
 	const struct Qdisc_ops	*ops;
 	struct qdisc_size_table	__rcu *stab;
 	struct list_head	list;
 	u32			handle;
 	u32			parent;
-	atomic_t		refcnt;
-	struct gnet_stats_rate_est	rate_est;
 	int			(*reshape_fail)(struct sk_buff *skb,
 					struct Qdisc *q);
 
@@ -76,8 +74,9 @@ struct Qdisc {
 	 */
 	struct Qdisc		*__parent;
 	struct netdev_queue	*dev_queue;
-	struct Qdisc		*next_sched;
 
+	struct gnet_stats_rate_est64	rate_est;
+	struct Qdisc		*next_sched;
 	struct sk_buff		*gso_skb;
 	/*
 	 * For performance sake on SMP, we put highly modified fields at the end
@@ -88,8 +87,10 @@ struct Qdisc {
 	unsigned int		__state;
 	struct gnet_stats_queue	qstats;
 	struct rcu_head		rcu_head;
-	spinlock_t		busylock;
-	u32			limit;
+	int			padded;
+	atomic_t		refcnt;
+
+	spinlock_t		busylock ____cacheline_aligned_in_smp;
 };
 
 static inline bool qdisc_is_running(const struct Qdisc *qdisc)
diff --git a/include/uapi/linux/gen_stats.h b/include/uapi/linux/gen_stats.h
index 552c8a0..6487317 100644
--- a/include/uapi/linux/gen_stats.h
+++ b/include/uapi/linux/gen_stats.h
@@ -9,6 +9,7 @@ enum {
 	TCA_STATS_RATE_EST,
 	TCA_STATS_QUEUE,
 	TCA_STATS_APP,
+	TCA_STATS_RATE_EST64,
 	__TCA_STATS_MAX,
 };
 #define TCA_STATS_MAX (__TCA_STATS_MAX - 1)
@@ -38,6 +39,16 @@ struct gnet_stats_rate_est {
 };
 
 /**
+ * struct gnet_stats_rate_est64 - rate estimator
+ * @bps: current byte rate
+ * @pps: current packet rate
+ */
+struct gnet_stats_rate_est64 {
+	__u64	bps;
+	__u64	pps;
+};
+
+/**
  * struct gnet_stats_queue - queuing statistics
  * @qlen: queue length
  * @backlog: backlog size of queue
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index d9d198a..6b5b6e7 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -82,7 +82,7 @@ struct gen_estimator
 {
 	struct list_head	list;
 	struct gnet_stats_basic_packed	*bstats;
-	struct gnet_stats_rate_est	*rate_est;
+	struct gnet_stats_rate_est64	*rate_est;
 	spinlock_t		*stats_lock;
 	int			ewma_log;
 	u64			last_bytes;
@@ -167,7 +167,7 @@ static void gen_add_node(struct gen_estimator *est)
 
 static
 struct gen_estimator *gen_find_node(const struct gnet_stats_basic_packed *bstats,
-				    const struct gnet_stats_rate_est *rate_est)
+				    const struct gnet_stats_rate_est64 *rate_est)
 {
 	struct rb_node *p = est_root.rb_node;
 
@@ -203,7 +203,7 @@ struct gen_estimator *gen_find_node(const struct gnet_stats_basic_packed *bstats
  *
  */
 int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
-		      struct gnet_stats_rate_est *rate_est,
+		      struct gnet_stats_rate_est64 *rate_est,
 		      spinlock_t *stats_lock,
 		      struct nlattr *opt)
 {
@@ -258,7 +258,7 @@ EXPORT_SYMBOL(gen_new_estimator);
  * Note : Caller should respect an RCU grace period before freeing stats_lock
  */
 void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
-			struct gnet_stats_rate_est *rate_est)
+			struct gnet_stats_rate_est64 *rate_est)
 {
 	struct gen_estimator *e;
 
@@ -290,7 +290,7 @@ EXPORT_SYMBOL(gen_kill_estimator);
  * Returns 0 on success or a negative error code.
  */
 int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
-			  struct gnet_stats_rate_est *rate_est,
+			  struct gnet_stats_rate_est64 *rate_est,
 			  spinlock_t *stats_lock, struct nlattr *opt)
 {
 	gen_kill_estimator(bstats, rate_est);
@@ -306,7 +306,7 @@ EXPORT_SYMBOL(gen_replace_estimator);
  * Returns true if estimator is active, and false if not.
  */
 bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats,
-			  const struct gnet_stats_rate_est *rate_est)
+			  const struct gnet_stats_rate_est64 *rate_est)
 {
 	bool res;
 
diff --git a/net/core/gen_stats.c b/net/core/gen_stats.c
index ddedf21..9d3d9e7 100644
--- a/net/core/gen_stats.c
+++ b/net/core/gen_stats.c
@@ -143,18 +143,30 @@ EXPORT_SYMBOL(gnet_stats_copy_basic);
 int
 gnet_stats_copy_rate_est(struct gnet_dump *d,
 			 const struct gnet_stats_basic_packed *b,
-			 struct gnet_stats_rate_est *r)
+			 struct gnet_stats_rate_est64 *r)
 {
+	struct gnet_stats_rate_est est;
+	int res;
+
 	if (b && !gen_estimator_active(b, r))
 		return 0;
 
+	est.bps = min_t(u64, UINT_MAX, r->bps);
+	/* we have some time before reaching 2^32 packets per second */
+	est.pps = r->pps;
+
 	if (d->compat_tc_stats) {
-		d->tc_stats.bps = r->bps;
-		d->tc_stats.pps = r->pps;
+		d->tc_stats.bps = est.bps;
+		d->tc_stats.pps = est.pps;
 	}
 
-	if (d->tail)
-		return gnet_stats_copy(d, TCA_STATS_RATE_EST, r, sizeof(*r));
+	if (d->tail) {
+		res = gnet_stats_copy(d, TCA_STATS_RATE_EST, &est, sizeof(est));
+		if (res < 0 || est.bps == r->bps)
+			return res;
+		/* emit 64bit stats only if needed */
+		return gnet_stats_copy(d, TCA_STATS_RATE_EST64, r, sizeof(*r));
+	}
 
 	return 0;
 }
diff --git a/net/netfilter/xt_rateest.c b/net/netfilter/xt_rateest.c
index ed0db15..7720b03 100644
--- a/net/netfilter/xt_rateest.c
+++ b/net/netfilter/xt_rateest.c
@@ -18,7 +18,7 @@ static bool
 xt_rateest_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	const struct xt_rateest_match_info *info = par->matchinfo;
-	struct gnet_stats_rate_est *r;
+	struct gnet_stats_rate_est64 *r;
 	u_int32_t bps1, bps2, pps1, pps2;
 	bool ret = true;
 
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 1bc210f..71a5688 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -130,7 +130,7 @@ struct cbq_class {
 	psched_time_t		penalized;
 	struct gnet_stats_basic_packed bstats;
 	struct gnet_stats_queue qstats;
-	struct gnet_stats_rate_est rate_est;
+	struct gnet_stats_rate_est64 rate_est;
 	struct tc_cbq_xstats	xstats;
 
 	struct tcf_proto	*filter_list;
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index 759b308..8302717 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -25,7 +25,7 @@ struct drr_class {
 
 	struct gnet_stats_basic_packed		bstats;
 	struct gnet_stats_queue		qstats;
-	struct gnet_stats_rate_est	rate_est;
+	struct gnet_stats_rate_est64	rate_est;
 	struct list_head		alist;
 	struct Qdisc			*qdisc;
 
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 9facea0..c407561 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -114,7 +114,7 @@ struct hfsc_class {
 
 	struct gnet_stats_basic_packed bstats;
 	struct gnet_stats_queue qstats;
-	struct gnet_stats_rate_est rate_est;
+	struct gnet_stats_rate_est64 rate_est;
 	unsigned int	level;		/* class level in hierarchy */
 	struct tcf_proto *filter_list;	/* filter list */
 	unsigned int	filter_cnt;	/* filter count */
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index adaedd7..162fb80 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -78,7 +78,7 @@ struct htb_class {
 	/* general class parameters */
 	struct gnet_stats_basic_packed bstats;
 	struct gnet_stats_queue qstats;
-	struct gnet_stats_rate_est rate_est;
+	struct gnet_stats_rate_est64 rate_est;
 	struct tc_htb_xstats xstats;	/* our special stats */
 	int refcnt;		/* usage count of this class */
 
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index d51852b..7c195d9 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -138,7 +138,7 @@ struct qfq_class {
 
 	struct gnet_stats_basic_packed bstats;
 	struct gnet_stats_queue qstats;
-	struct gnet_stats_rate_est rate_est;
+	struct gnet_stats_rate_est64 rate_est;
 	struct Qdisc *qdisc;
 	struct list_head alist;		/* Link for active-classes list. */
 	struct qfq_aggregate *agg;	/* Parent aggregate. */
-- 
cgit v0.10.2


From ecccd072b07e7fd09c54d0f86f9374e2645cde97 Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <thomas@cozybit.com>
Date: Mon, 10 Jun 2013 13:17:21 -0700
Subject: mac80211: fix mesh deadlock

The patch "cfg80211/mac80211: use cfg80211 wdev mutex in
mac80211" introduced several deadlocks by converting the
ifmsh->mtx to wdev->mtx. Solve these by:

1. drop the cancel_work_sync() in ieee80211_stop_mesh().
   Instead make the mesh work conditional on whether the mesh
   is running or not.
2. lock the mesh work with sdata_lock() to protect beacon
   updates and prevent races with wdev->mesh_id_len or
   cfg80211.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 73a597b..d5faf91 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -579,9 +579,7 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata)
 	mesh_path_expire(sdata);
 
 	changed = mesh_accept_plinks_update(sdata);
-	sdata_lock(sdata);
 	ieee80211_mbss_info_change_notify(sdata, changed);
-	sdata_unlock(sdata);
 
 	mod_timer(&ifmsh->housekeeping_timer,
 		  round_jiffies(jiffies +
@@ -788,12 +786,10 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.bss_conf.enable_beacon = false;
 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
-	sdata_lock(sdata);
 	bcn = rcu_dereference_protected(ifmsh->beacon,
 					lockdep_is_held(&sdata->wdev.mtx));
 	rcu_assign_pointer(ifmsh->beacon, NULL);
 	kfree_rcu(bcn, rcu_head);
-	sdata_unlock(sdata);
 
 	/* flush STAs and mpaths on this iface */
 	sta_info_flush(sdata);
@@ -806,14 +802,6 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 	del_timer_sync(&sdata->u.mesh.housekeeping_timer);
 	del_timer_sync(&sdata->u.mesh.mesh_path_root_timer);
 	del_timer_sync(&sdata->u.mesh.mesh_path_timer);
-	/*
-	 * If the timer fired while we waited for it, it will have
-	 * requeued the work. Now the work will be running again
-	 * but will not rearm the timer again because it checks
-	 * whether the interface is running, which, at this point,
-	 * it no longer is.
-	 */
-	cancel_work_sync(&sdata->work);
 
 	local->fif_other_bss--;
 	atomic_dec(&local->iff_allmultis);
@@ -954,6 +942,12 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_mgmt *mgmt;
 	u16 stype;
 
+	sdata_lock(sdata);
+
+	/* mesh already went down */
+	if (!sdata->wdev.mesh_id_len)
+		goto out;
+
 	rx_status = IEEE80211_SKB_RXCB(skb);
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
@@ -971,12 +965,20 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 		ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status);
 		break;
 	}
+out:
+	sdata_unlock(sdata);
 }
 
 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 
+	sdata_lock(sdata);
+
+	/* mesh already went down */
+	if (!sdata->wdev.mesh_id_len)
+		goto out;
+
 	if (ifmsh->preq_queue_len &&
 	    time_after(jiffies,
 		       ifmsh->last_preq + msecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval)))
@@ -996,6 +998,9 @@ void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
 
 	if (test_and_clear_bit(MESH_WORK_DRIFT_ADJUST, &ifmsh->wrkq_flags))
 		mesh_sync_adjust_tbtt(sdata);
+
+out:
+	sdata_unlock(sdata);
 }
 
 void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local)
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 6c4da99..09bebed 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -517,9 +517,7 @@ void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
 	ieee80211_mps_frame_release(sta, elems);
 out:
 	rcu_read_unlock();
-	sdata_lock(sdata);
 	ieee80211_mbss_info_change_notify(sdata, changed);
-	sdata_unlock(sdata);
 }
 
 static void mesh_plink_timer(unsigned long data)
@@ -1070,9 +1068,6 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_unlock();
 
-	if (changed) {
-		sdata_lock(sdata);
+	if (changed)
 		ieee80211_mbss_info_change_notify(sdata, changed);
-		sdata_unlock(sdata);
-	}
 }
-- 
cgit v0.10.2


From a0a2af765543a96bdf188ec57dd201e708195302 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 3 Jun 2013 18:10:45 +0200
Subject: nl80211: add kernel-doc for NL80211_FEATURE_ACTIVE_MONITOR

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 5920715..1f0019d 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3579,6 +3579,10 @@ enum nl80211_ap_sme_features {
  *	Peering Management entity which may be implemented by registering for
  *	beacons or NL80211_CMD_NEW_PEER_CANDIDATE events. The mesh beacon is
  *	still generated by the driver.
+ * @NL80211_FEATURE_ACTIVE_MONITOR: This driver supports an active monitor
+ *	interface. An active monitor interface behaves like a normal monitor
+ *	interface, but gets added to the driver. It ensures that incoming
+ *	unicast packets directed at the configured interface address get ACKed.
  */
 enum nl80211_feature_flags {
 	NL80211_FEATURE_SK_TX_STATUS			= 1 << 0,
-- 
cgit v0.10.2


From 8e7c053853b7d299e8a2b8733659b0df8eee51f7 Mon Sep 17 00:00:00 2001
From: Colleen Twitty <colleen@cozybit.com>
Date: Mon, 3 Jun 2013 09:53:39 -0700
Subject: {nl,cfg}80211: make peer link expiration time configurable

If a STA has a peer that it hasn't seen any tx activity
from for a certain length of time, the peer link is
expired. This means the inactive STA is removed from the
list of peers and that STA is not considered a peer again
unless it re-peers.  Previously, this inactivity time was
always 30 minutes.  Now, add it to the mesh configuration
and allow it to be configured.  Retain 30 minutes as a
default value.

Signed-off-by: Colleen Twitty <colleen@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 855c76c..31ca116 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1124,6 +1124,9 @@ struct bss_parameters {
  *	setting for new peer links.
  * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake
  *	after transmitting its beacon.
+ * @plink_timeout: If no tx activity is seen from a STA we've established
+ *	peering with for longer than this time (in seconds), then remove it
+ *	from the STA's list of peers.  Default is 30 minutes.
  */
 struct mesh_config {
 	u16 dot11MeshRetryTimeout;
@@ -1153,6 +1156,7 @@ struct mesh_config {
 	u16 dot11MeshHWMPconfirmationInterval;
 	enum nl80211_mesh_power_mode power_mode;
 	u16 dot11MeshAwakeWindowDuration;
+	u32 plink_timeout;
 };
 
 /**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 1f0019d..ca6facf 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2577,6 +2577,10 @@ enum nl80211_mesh_power_mode {
  *
  * @NL80211_MESHCONF_AWAKE_WINDOW: awake window duration (in TUs)
  *
+ * @NL80211_MESHCONF_PLINK_TIMEOUT: If no tx activity is seen from a STA we've
+ *	established peering with for longer than this time (in seconds), then
+ *	remove it from the STA's list of peers.  Default is 30 minutes.
+ *
  * @__NL80211_MESHCONF_ATTR_AFTER_LAST: internal use
  */
 enum nl80211_meshconf_params {
@@ -2608,6 +2612,7 @@ enum nl80211_meshconf_params {
 	NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
 	NL80211_MESHCONF_POWER_MODE,
 	NL80211_MESHCONF_AWAKE_WINDOW,
+	NL80211_MESHCONF_PLINK_TIMEOUT,
 
 	/* keep last */
 	__NL80211_MESHCONF_ATTR_AFTER_LAST,
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 5dfb289..0daaf72 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -18,6 +18,7 @@
 #define MESH_PATH_TO_ROOT_TIMEOUT      6000
 #define MESH_ROOT_INTERVAL     5000
 #define MESH_ROOT_CONFIRMATION_INTERVAL 2000
+#define MESH_DEFAULT_PLINK_TIMEOUT	1800 /* timeout in seconds */
 
 /*
  * Minimum interval between two consecutive PREQs originated by the same
@@ -75,6 +76,7 @@ const struct mesh_config default_mesh_config = {
 	.dot11MeshHWMPconfirmationInterval = MESH_ROOT_CONFIRMATION_INTERVAL,
 	.power_mode = NL80211_MESH_POWER_ACTIVE,
 	.dot11MeshAwakeWindowDuration = MESH_DEFAULT_AWAKE_WINDOW,
+	.plink_timeout = MESH_DEFAULT_PLINK_TIMEOUT,
 };
 
 const struct mesh_setup default_mesh_setup = {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 88e820b..8aa83c0 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4575,7 +4575,9 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
 	    nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
 			cur_params.power_mode) ||
 	    nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
-			cur_params.dot11MeshAwakeWindowDuration))
+			cur_params.dot11MeshAwakeWindowDuration) ||
+	    nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
+			cur_params.plink_timeout))
 		goto nla_put_failure;
 	nla_nest_end(msg, pinfoattr);
 	genlmsg_end(msg, hdr);
@@ -4616,6 +4618,7 @@ static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_A
 	[NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
 	[NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
 	[NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
+	[NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
 };
 
 static const struct nla_policy
@@ -4753,6 +4756,9 @@ do {									    \
 	FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
 				  0, 65535, mask,
 				  NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
+	FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
+				  mask, NL80211_MESHCONF_PLINK_TIMEOUT,
+				  nla_get_u32);
 	if (mask_out)
 		*mask_out = mask;
 
-- 
cgit v0.10.2


From 66de671374f003467b5ef7c65ecbe1930480c8c9 Mon Sep 17 00:00:00 2001
From: Colleen Twitty <colleen@cozybit.com>
Date: Mon, 3 Jun 2013 09:53:40 -0700
Subject: mac80211: expire mesh peers based on mesh configuration

The time it takes to see the peer link expire may differ
by a minute since sta_expire() is run once a minute as a
mesh housekeeping task.

Signed-off-by: Colleen Twitty <colleen@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 3062210..344a579 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1871,6 +1871,8 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 	if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
 		conf->dot11MeshAwakeWindowDuration =
 			nconf->dot11MeshAwakeWindowDuration;
+	if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
+		conf->plink_timeout = nconf->plink_timeout;
 	ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
 	return 0;
 }
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index d5faf91..4ee527f 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -575,7 +575,7 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	u32 changed;
 
-	ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
+	ieee80211_sta_expire(sdata, ifmsh->mshcfg.plink_timeout * HZ);
 	mesh_path_expire(sdata);
 
 	changed = mesh_accept_plinks_update(sdata);
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 8b4d9a3..01a28bc 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -188,7 +188,6 @@ struct mesh_rmc {
 	u32 idx_mask;
 };
 
-#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
 #define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
 
 #define MESH_PATH_EXPIRE (600 * HZ)
-- 
cgit v0.10.2


From ffb3cf3000aa12facdccbdfcb10bfebda7199209 Mon Sep 17 00:00:00 2001
From: Ashok Nagarajan <ashok@cozybit.com>
Date: Mon, 3 Jun 2013 10:33:36 -0700
Subject: {nl,mac,cfg}80211: Allow user to configure basic rates for mesh

Currently mesh uses mandatory rates as the default basic rates. Allow basic
rates to be configured during mesh join. Basic rates are applied only if
channel is also provided with mesh join command.

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
[some whitespace fixes, refuse basic rates w/o channel]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 31ca116..6a43c34 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1176,6 +1176,7 @@ struct mesh_config {
  * @dtim_period: DTIM period to use
  * @beacon_interval: beacon interval to use
  * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
+ * @basic_rates: basic rates to use when creating the mesh
  *
  * These parameters are fixed when the mesh is created.
  */
@@ -1195,6 +1196,7 @@ struct mesh_setup {
 	u8 dtim_period;
 	u16 beacon_interval;
 	int mcast_rate[IEEE80211_NUM_BANDS];
+	u32 basic_rates;
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 344a579..cd6f35f 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1759,6 +1759,7 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
 	/* mcast rate setting in Mesh Node */
 	memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
 						sizeof(setup->mcast_rate));
+	sdata->vif.bss_conf.basic_rates = setup->basic_rates;
 
 	sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
 	sdata->vif.bss_conf.dtim_period = setup->dtim_period;
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 4ee527f..6c33af4 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -738,9 +738,6 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 		      BSS_CHANGED_HT |
 		      BSS_CHANGED_BASIC_RATES |
 		      BSS_CHANGED_BEACON_INT;
-	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
-	struct ieee80211_supported_band *sband =
-					sdata->local->hw.wiphy->bands[band];
 
 	local->fif_other_bss++;
 	/* mesh ifaces must set allmulti to forward mcast traffic */
@@ -758,7 +755,6 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.bss_conf.ht_operation_mode =
 				ifmsh->mshcfg.ht_opmode;
 	sdata->vif.bss_conf.enable_beacon = true;
-	sdata->vif.bss_conf.basic_rates = ieee80211_mandatory_rates(sband);
 
 	changed |= ieee80211_mps_local_status_update(sdata);
 
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 0daaf72..30c4920 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -162,6 +162,16 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
 		setup->chandef.center_freq1 = setup->chandef.chan->center_freq;
 	}
 
+	/*
+	 * check if basic rates are available otherwise use mandatory rates as
+	 * basic rates
+	 */
+	if (!setup->basic_rates) {
+		struct ieee80211_supported_band *sband =
+				rdev->wiphy.bands[setup->chandef.chan->band];
+		setup->basic_rates = ieee80211_mandatory_rates(sband);
+	}
+
 	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &setup->chandef))
 		return -EINVAL;
 
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8aa83c0..687cb64 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7487,6 +7487,23 @@ static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
 		setup.chandef.chan = NULL;
 	}
 
+	if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
+		u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
+		int n_rates =
+			nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
+		struct ieee80211_supported_band *sband;
+
+		if (!setup.chandef.chan)
+			return -EINVAL;
+
+		sband = rdev->wiphy.bands[setup.chandef.chan->band];
+
+		err = ieee80211_get_ratemask(sband, rates, n_rates,
+					     &setup.basic_rates);
+		if (err)
+			return err;
+	}
+
 	return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
 }
 
-- 
cgit v0.10.2


From 3d124ea27ae2fc895f81725f0b4c7f3d9c733df4 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Mon, 27 May 2013 18:24:02 +0300
Subject: cfg80211: fix VHT TDLS peer AID verification

I (Johannes) accidentally applied the first version of the patch
("Allow TDLS peer AID to be configured for VHT"). Now apply just
the changes between v1 and v2 to get the AID verification and
prefer the new attribute over the old one.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 687cb64..7183410 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3972,10 +3972,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	params.listen_interval =
 		nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
 
-	if (info->attrs[NL80211_ATTR_STA_AID])
-		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
-	else
+	if (info->attrs[NL80211_ATTR_PEER_AID])
 		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
+	else
+		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
 	if (!params.aid || params.aid > IEEE80211_MAX_AID)
 		return -EINVAL;
 
@@ -4027,7 +4027,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 			params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
 
 		/* TDLS peers cannot be added */
-		if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+		if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
+		    info->attrs[NL80211_ATTR_PEER_AID])
 			return -EINVAL;
 		/* but don't bother the driver with it */
 		params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
@@ -4053,7 +4054,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 		if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
 			return -EINVAL;
 		/* TDLS peers cannot be added */
-		if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+		if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
+		    info->attrs[NL80211_ATTR_PEER_AID])
 			return -EINVAL;
 		break;
 	case NL80211_IFTYPE_STATION:
-- 
cgit v0.10.2


From f7aeb6fb1a3d6b09623b169518314bc7869fffec Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 11 Jun 2013 14:20:00 +0200
Subject: mac80211: make mgmt_tx accept a NULL channel

cfg80211 passes a NULL channel to mgmt_tx if the frame has
to be sent on the one currently in use by the device.
Make the implementation of mgmt_tx correctly handle this
case. Fail if offchan is required.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
[fix RCU locking]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index cd6f35f..64cf294 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2841,6 +2841,12 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		return -EOPNOTSUPP;
 	}
 
+	/* configurations requiring offchan cannot work if no channel has been
+	 * specified
+	 */
+	if (need_offchan && !chan)
+		return -EINVAL;
+
 	mutex_lock(&local->mtx);
 
 	/* Check if the operating channel is the requested channel */
@@ -2850,10 +2856,15 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		rcu_read_lock();
 		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 
-		if (chanctx_conf)
-			need_offchan = chan != chanctx_conf->def.chan;
-		else
+		if (chanctx_conf) {
+			need_offchan = chan && (chan != chanctx_conf->def.chan);
+		} else if (!chan) {
+			ret = -EINVAL;
+			rcu_read_unlock();
+			goto out_unlock;
+		} else {
 			need_offchan = true;
+		}
 		rcu_read_unlock();
 	}
 
-- 
cgit v0.10.2


From c2ff8cad64233b539c71a27e2a6e324001143ef0 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 11 Jun 2013 14:20:01 +0200
Subject: brcm80211: make mgmt_tx in brcmfmac accept a NULL channel

cfg80211 passes a NULL channel to mgmt_tx if the frame has
to be sent on the one currently in use by the device.
Make the implementation of mgmt_tx correctly handle this
case

Cc: brcm80211-dev-list@broadcom.com
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 6d758f2..8bd256b 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -3917,6 +3917,7 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 	struct brcmf_fil_af_params_le *af_params;
 	bool ack;
 	s32 chan_nr;
+	u32 freq;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
@@ -3929,6 +3930,8 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		return -EPERM;
 	}
 
+	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
+
 	if (ieee80211_is_probe_resp(mgmt->frame_control)) {
 		/* Right now the only reason to get a probe response */
 		/* is for p2p listen response or for p2p GO from     */
@@ -3944,7 +3947,6 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		ie_offset =  DOT11_MGMT_HDR_LEN +
 			     DOT11_BCN_PRB_FIXED_LEN;
 		ie_len = len - ie_offset;
-		vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
 		if (vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif)
 			vif = cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
 		err = brcmf_vif_set_mgmt_ie(vif,
@@ -3968,8 +3970,15 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		memcpy(&af_params->bssid[0], &mgmt->bssid[0], ETH_ALEN);
 		/* Add the length exepted for 802.11 header  */
 		action_frame->len = cpu_to_le16(len - DOT11_MGMT_HDR_LEN);
-		/* Add the channel */
-		chan_nr = ieee80211_frequency_to_channel(chan->center_freq);
+		/* Add the channel. Use the one specified as parameter if any or
+		 * the current one (got from the firmware) otherwise
+		 */
+		if (chan)
+			freq = chan->center_freq;
+		else
+			brcmf_fil_cmd_int_get(vif->ifp, BRCMF_C_GET_CHANNEL,
+					      &freq);
+		chan_nr = ieee80211_frequency_to_channel(freq);
 		af_params->channel = cpu_to_le32(chan_nr);
 
 		memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
-- 
cgit v0.10.2


From bfd634d01e02071404e3e36e3946728009ed023f Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 11 Jun 2013 14:20:02 +0200
Subject: ath6kl: make mgmt_tx accept a NULL channel

cfg80211 passes a NULL channel to mgmt_tx if the frame has
to be sent on the one currently in use by the device.
Make the implementation of mgmt_tx correctly handle this
case

Cc: Nicolas Cavallari <Nicolas.Cavallari@lri.fr>
Acked-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index f7995b2..2437ad2 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -3175,10 +3175,21 @@ static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 {
 	struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
 	struct ath6kl *ar = ath6kl_priv(vif->ndev);
-	u32 id;
+	u32 id, freq;
 	const struct ieee80211_mgmt *mgmt;
 	bool more_data, queued;
 
+	/* default to the current channel, but use the one specified as argument
+	 * if any
+	 */
+	freq = vif->ch_hint;
+	if (chan)
+		freq = chan->center_freq;
+
+	/* never send freq zero to the firmware */
+	if (WARN_ON(freq == 0))
+		return -EINVAL;
+
 	mgmt = (const struct ieee80211_mgmt *) buf;
 	if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
 	    ieee80211_is_probe_resp(mgmt->frame_control) &&
@@ -3188,8 +3199,7 @@ static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		 * command to allow the target to fill in the generic IEs.
 		 */
 		*cookie = 0; /* TX status not supported */
-		return ath6kl_send_go_probe_resp(vif, buf, len,
-						 chan->center_freq);
+		return ath6kl_send_go_probe_resp(vif, buf, len, freq);
 	}
 
 	id = vif->send_action_id++;
@@ -3205,17 +3215,14 @@ static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 
 	/* AP mode Power saving processing */
 	if (vif->nw_type == AP_NETWORK) {
-		queued = ath6kl_mgmt_powersave_ap(vif,
-					id, chan->center_freq,
-					wait, buf,
-					len, &more_data, no_cck);
+		queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len,
+						  &more_data, no_cck);
 		if (queued)
 			return 0;
 	}
 
-	return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id,
-					chan->center_freq, wait,
-					buf, len, no_cck);
+	return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq,
+					wait, buf, len, no_cck);
 }
 
 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,
-- 
cgit v0.10.2


From ea141b75ae29636b5c9e9d2e2e77b3dd1ab4c934 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 11 Jun 2013 14:20:03 +0200
Subject: nl80211: allow sending CMD_FRAME without specifying any frequency

Users may want to send a frame on the current channel
without specifying it.

This is particularly useful for the correct implementation
of the IBSS/RSN support in wpa_supplicant which requires to
receive and send AUTH frames.

Make mgmt_tx pass a NULL channel to the driver if none has
been specified by the user.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 7183410..398ce2c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7147,6 +7147,9 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 		return -EOPNOTSUPP;
 
 	switch (wdev->iftype) {
+	case NL80211_IFTYPE_P2P_DEVICE:
+		if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
+			return -EINVAL;
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_ADHOC:
 	case NL80211_IFTYPE_P2P_CLIENT:
@@ -7154,7 +7157,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_P2P_GO:
-	case NL80211_IFTYPE_P2P_DEVICE:
 		break;
 	default:
 		return -EOPNOTSUPP;
@@ -7182,9 +7184,18 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 
 	no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
 
-	err = nl80211_parse_chandef(rdev, info, &chandef);
-	if (err)
-		return err;
+	/* get the channel if any has been specified, otherwise pass NULL to
+	 * the driver. The latter will use the current one
+	 */
+	chandef.chan = NULL;
+	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+		err = nl80211_parse_chandef(rdev, info, &chandef);
+		if (err)
+			return err;
+	}
+
+	if (!chandef.chan && offchan)
+		return -EINVAL;
 
 	if (!dont_wait_for_ack) {
 		msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
-- 
cgit v0.10.2


From 940d0ac9dbe3fb9d4806e96f006286c2e476deed Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 11 Jun 2013 16:51:03 +0200
Subject: cfg80211: fix rtnl leak in wiphy dump error cases

In two wiphy dump error cases, most often when the dump allocation
must be increased, the RTNL is leaked. This quickly results in a
complete system lockup. Release the RTNL correctly.

Reported-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 398ce2c..e402819 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1541,8 +1541,10 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 			int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
 
 			netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
-			if (!netdev)
+			if (!netdev) {
+				rtnl_unlock();
 				return -ENODEV;
+			}
 			if (netdev->ieee80211_ptr) {
 				dev = wiphy_to_dev(
 					netdev->ieee80211_ptr->wiphy);
@@ -1586,6 +1588,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 				    !skb->len &&
 				    cb->min_dump_alloc < 4096) {
 					cb->min_dump_alloc = 4096;
+					rtnl_unlock();
 					return 1;
 				}
 				idx--;
-- 
cgit v0.10.2


From fa8eeae102570dfdf3fd14347a0671cff8a2cfe4 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Tue, 11 Jun 2013 09:49:38 -0400
Subject: cw1200: Remove "ITP" debug subsystem.

This can live on as an out-of-tree patch for those that care.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/Kconfig b/drivers/net/wireless/cw1200/Kconfig
index 7a585d4..fc1b472 100644
--- a/drivers/net/wireless/cw1200/Kconfig
+++ b/drivers/net/wireless/cw1200/Kconfig
@@ -35,11 +35,6 @@ config CW1200_ETF
 	help
 	  If you don't know what this is, just say N.
 
-config CW1200_ITP
-	bool "Enable ITP access"
-	help
-	  If you don't know what this is, just say N.
-
 endmenu
 
 endif
diff --git a/drivers/net/wireless/cw1200/Makefile b/drivers/net/wireless/cw1200/Makefile
index bc6cbf9..b086aac 100644
--- a/drivers/net/wireless/cw1200/Makefile
+++ b/drivers/net/wireless/cw1200/Makefile
@@ -9,7 +9,6 @@ cw1200_core-y := \
 		sta.o \
 		scan.o \
 		debug.o
-cw1200_core-$(CONFIG_CW1200_ITP)	+= itp.o
 cw1200_core-$(CONFIG_PM)	+= pm.o
 
 # CFLAGS_sta.o += -DDEBUG
diff --git a/drivers/net/wireless/cw1200/debug.c b/drivers/net/wireless/cw1200/debug.c
index 1596b70..ac9c219 100644
--- a/drivers/net/wireless/cw1200/debug.c
+++ b/drivers/net/wireless/cw1200/debug.c
@@ -559,10 +559,6 @@ int cw1200_debug_init(struct cw1200_common *priv)
 				 priv, &fops_wsm_dumps))
 		goto err;
 
-	ret = cw1200_itp_init(priv);
-	if (ret)
-		goto err;
-
 	return 0;
 
 err:
@@ -576,7 +572,7 @@ void cw1200_debug_release(struct cw1200_common *priv)
 {
 	struct cw1200_debug_priv *d = priv->debug;
 	if (d) {
-		cw1200_itp_release(priv);
+		debugfs_remove_recursive(d->debugfs_phy);
 		priv->debug = NULL;
 		kfree(d);
 	}
diff --git a/drivers/net/wireless/cw1200/debug.h b/drivers/net/wireless/cw1200/debug.h
index 1fea5b2..b525aba 100644
--- a/drivers/net/wireless/cw1200/debug.h
+++ b/drivers/net/wireless/cw1200/debug.h
@@ -12,8 +12,6 @@
 #ifndef CW1200_DEBUG_H_INCLUDED
 #define CW1200_DEBUG_H_INCLUDED
 
-#include "itp.h"
-
 struct cw1200_debug_priv {
 	struct dentry *debugfs_phy;
 	int tx;
@@ -30,9 +28,6 @@ struct cw1200_debug_priv {
 	int ba_acc;
 	int ba_cnt_rx;
 	int ba_acc_rx;
-#ifdef CONFIG_CW1200_ITP
-	struct cw1200_itp itp;
-#endif /* CONFIG_CW1200_ITP */
 };
 
 int cw1200_debug_init(struct cw1200_common *priv);
diff --git a/drivers/net/wireless/cw1200/itp.c b/drivers/net/wireless/cw1200/itp.c
deleted file mode 100644
index c0730bb..0000000
--- a/drivers/net/wireless/cw1200/itp.c
+++ /dev/null
@@ -1,730 +0,0 @@
-/*
- * mac80211 glue code for mac80211 ST-Ericsson CW1200 drivers
- * ITP code
- *
- * Copyright (c) 2010, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/debugfs.h>
-#include <linux/poll.h>
-#include <linux/time.h>
-#include <linux/random.h>
-#include <linux/kallsyms.h>
-#include <net/mac80211.h>
-#include "cw1200.h"
-#include "debug.h"
-#include "itp.h"
-#include "sta.h"
-
-static int __cw1200_itp_open(struct cw1200_common *priv);
-static int __cw1200_itp_close(struct cw1200_common *priv);
-static void cw1200_itp_rx_start(struct cw1200_common *priv);
-static void cw1200_itp_rx_stop(struct cw1200_common *priv);
-static void cw1200_itp_rx_stats(struct cw1200_common *priv);
-static void cw1200_itp_rx_reset(struct cw1200_common *priv);
-static void cw1200_itp_tx_stop(struct cw1200_common *priv);
-static void cw1200_itp_handle(struct cw1200_common *priv,
-			      struct sk_buff *skb);
-static void cw1200_itp_err(struct cw1200_common *priv,
-			   int err,
-			   int arg);
-static void __cw1200_itp_tx_stop(struct cw1200_common *priv);
-
-static ssize_t cw1200_itp_read(struct file *file,
-	char __user *user_buf, size_t count, loff_t *ppos)
-{
-	struct cw1200_common *priv = file->private_data;
-	struct cw1200_itp *itp = &priv->debug->itp;
-	struct sk_buff *skb;
-	int ret;
-
-	if (skb_queue_empty(&itp->log_queue))
-		return 0;
-
-	skb = skb_dequeue(&itp->log_queue);
-	ret = copy_to_user(user_buf, skb->data, skb->len);
-	*ppos += skb->len;
-	skb->data[skb->len] = 0;
-	pr_debug("[ITP] >>> %s", skb->data);
-	consume_skb(skb);
-
-	return skb->len - ret;
-}
-
-static ssize_t cw1200_itp_write(struct file *file,
-	const char __user *user_buf, size_t count, loff_t *ppos)
-{
-	struct cw1200_common *priv = file->private_data;
-	struct sk_buff *skb;
-
-	if (!count || count > 1024)
-		return -EINVAL;
-	skb = dev_alloc_skb(count + 1);
-	if (!skb)
-		return -ENOMEM;
-	skb_trim(skb, 0);
-	skb_put(skb, count + 1);
-	if (copy_from_user(skb->data, user_buf, count)) {
-		kfree_skb(skb);
-		return -EFAULT;
-	}
-	skb->data[count] = 0;
-
-	cw1200_itp_handle(priv, skb);
-	consume_skb(skb);
-	return count;
-}
-
-static unsigned int cw1200_itp_poll(struct file *file, poll_table *wait)
-{
-	struct cw1200_common *priv = file->private_data;
-	struct cw1200_itp *itp = &priv->debug->itp;
-	unsigned int mask = 0;
-
-	poll_wait(file, &itp->read_wait, wait);
-
-	if (!skb_queue_empty(&itp->log_queue))
-		mask |= POLLIN | POLLRDNORM;
-
-	mask |= POLLOUT | POLLWRNORM;
-
-	return mask;
-}
-
-static int cw1200_itp_open(struct inode *inode, struct file *file)
-{
-	struct cw1200_common *priv = inode->i_private;
-	struct cw1200_itp *itp = &priv->debug->itp;
-	int ret = 0;
-
-	file->private_data = priv;
-	if (atomic_inc_return(&itp->open_count) == 1) {
-		ret = __cw1200_itp_open(priv);
-		if (ret && !atomic_dec_return(&itp->open_count))
-			__cw1200_itp_close(priv);
-	} else {
-		atomic_dec(&itp->open_count);
-		ret = -EBUSY;
-	}
-
-	return ret;
-}
-
-static int cw1200_itp_close(struct inode *inode, struct file *file)
-{
-	struct cw1200_common *priv = file->private_data;
-	struct cw1200_itp *itp = &priv->debug->itp;
-	if (!atomic_dec_return(&itp->open_count)) {
-		__cw1200_itp_close(priv);
-		wake_up(&itp->close_wait);
-	}
-	return 0;
-}
-
-static const struct file_operations fops_itp = {
-	.open = cw1200_itp_open,
-	.read = cw1200_itp_read,
-	.write = cw1200_itp_write,
-	.poll = cw1200_itp_poll,
-	.release = cw1200_itp_close,
-	.llseek = default_llseek,
-	.owner = THIS_MODULE,
-};
-
-static void cw1200_itp_fill_pattern(u8 *data, int size,
-		enum cw1200_itp_data_modes mode)
-{
-	if (size <= 0)
-		return;
-
-	switch (mode) {
-	default:
-	case ITP_DATA_ZEROS:
-		memset(data, 0x0, size);
-		break;
-	case ITP_DATA_ONES:
-		memset(data, 0xff, size);
-		break;
-	case ITP_DATA_ZERONES:
-		memset(data, 0x55, size);
-		break;
-	case ITP_DATA_RANDOM:
-		get_random_bytes(data, size);
-		break;
-	}
-	return;
-}
-
-static void cw1200_itp_tx_work(struct work_struct *work)
-{
-	struct cw1200_itp *itp = container_of(work, struct cw1200_itp,
-		    tx_work.work);
-	struct cw1200_common *priv = itp->priv;
-	atomic_set(&priv->bh_tx, 1);
-	wake_up(&priv->bh_wq);
-}
-
-static void cw1200_itp_tx_finish(struct work_struct *work)
-{
-	struct cw1200_itp *itp = container_of(work, struct cw1200_itp,
-		    tx_finish.work);
-	__cw1200_itp_tx_stop(itp->priv);
-}
-
-int cw1200_itp_init(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-
-	itp->priv = priv;
-	atomic_set(&itp->open_count, 0);
-	atomic_set(&itp->stop_tx, 0);
-	atomic_set(&itp->awaiting_confirm, 0);
-	skb_queue_head_init(&itp->log_queue);
-	spin_lock_init(&itp->tx_lock);
-	init_waitqueue_head(&itp->read_wait);
-	init_waitqueue_head(&itp->write_wait);
-	init_waitqueue_head(&itp->close_wait);
-	INIT_DELAYED_WORK(&itp->tx_work, cw1200_itp_tx_work);
-	INIT_DELAYED_WORK(&itp->tx_finish, cw1200_itp_tx_finish);
-	itp->data = NULL;
-	itp->hdr_len = WSM_TX_EXTRA_HEADROOM +
-			sizeof(struct ieee80211_hdr_3addr);
-
-	if (!debugfs_create_file("itp", S_IRUSR | S_IWUSR,
-				 priv->debug->debugfs_phy, priv, &fops_itp))
-		return -ENOMEM;
-
-	return 0;
-}
-
-void cw1200_itp_release(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-
-	wait_event_interruptible(itp->close_wait,
-				 !atomic_read(&itp->open_count));
-
-	WARN_ON(atomic_read(&itp->open_count));
-
-	skb_queue_purge(&itp->log_queue);
-	cw1200_itp_tx_stop(priv);
-}
-
-static int __cw1200_itp_open(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-
-	if (!priv->vif)
-		return -EINVAL;
-	if (priv->join_status)
-		return -EINVAL;
-	itp->saved_channel = priv->channel;
-	if (!priv->channel)
-		priv->channel = &priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
-	wsm_set_bssid_filtering(priv, false);
-	cw1200_itp_rx_reset(priv);
-	return 0;
-}
-
-static int __cw1200_itp_close(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	if (atomic_read(&itp->test_mode) == TEST_MODE_RX_TEST)
-		cw1200_itp_rx_stop(priv);
-	cw1200_itp_tx_stop(priv);
-	cw1200_disable_listening(priv);
-	cw1200_update_filtering(priv);
-	priv->channel = itp->saved_channel;
-	return 0;
-}
-
-bool cw1200_is_itp(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	return atomic_read(&itp->open_count) != 0;
-}
-
-static void cw1200_itp_rx_reset(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	itp->rx_cnt = 0;
-	itp->rx_rssi = 0;
-	itp->rx_rssi_max = -1000;
-	itp->rx_rssi_min = 1000;
-}
-
-static void cw1200_itp_rx_start(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-
-	pr_debug("[ITP] RX start, band = %d, ch = %d\n",
-		 itp->band, itp->ch);
-	atomic_set(&itp->test_mode, TEST_MODE_RX_TEST);
-	cw1200_update_listening(priv, false);
-	priv->channel = &priv->hw->
-		wiphy->bands[itp->band]->channels[itp->ch];
-	cw1200_update_listening(priv, true);
-	wsm_set_bssid_filtering(priv, false);
-}
-
-static void cw1200_itp_rx_stop(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	pr_debug("[ITP] RX stop\n");
-	atomic_set(&itp->test_mode, TEST_MODE_NO_TEST);
-	cw1200_itp_rx_reset(priv);
-}
-
-static void cw1200_itp_rx_stats(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	struct sk_buff *skb;
-	char buf[128];
-	int len, ret;
-	struct wsm_mib_counters_table counters;
-
-	ret = wsm_get_counters_table(priv, &counters);
-
-	if (ret)
-		cw1200_itp_err(priv, -EBUSY, 20);
-
-	if (!itp->rx_cnt)
-		len = snprintf(buf, sizeof(buf), "1,0,0,0,0,%d\n",
-			       counters.rx_packet_errors);
-	else
-		len = snprintf(buf, sizeof(buf), "1,%d,%ld,%d,%d,%d\n",
-			       itp->rx_cnt,
-			       itp->rx_cnt ? itp->rx_rssi / itp->rx_cnt : 0,
-			       itp->rx_rssi_min, itp->rx_rssi_max,
-			       counters.rx_packet_errors);
-
-	if (len <= 0) {
-		cw1200_itp_err(priv, -EBUSY, 21);
-		return;
-	}
-
-	skb = dev_alloc_skb(len);
-	if (!skb) {
-		cw1200_itp_err(priv, -ENOMEM, 22);
-		return;
-	}
-
-	itp->rx_cnt = 0;
-	itp->rx_rssi = 0;
-	itp->rx_rssi_max = -1000;
-	itp->rx_rssi_min = 1000;
-
-	skb_trim(skb, 0);
-	skb_put(skb, len);
-
-	memcpy(skb->data, buf, len);
-	skb_queue_tail(&itp->log_queue, skb);
-	wake_up(&itp->read_wait);
-}
-
-static void cw1200_itp_tx_start(struct cw1200_common *priv)
-{
-	struct wsm_tx *tx;
-	struct ieee80211_hdr_3addr *hdr;
-	struct cw1200_itp *itp = &priv->debug->itp;
-	struct wsm_mib_association_mode assoc_mode = {
-		.flags = WSM_ASSOCIATION_MODE_USE_PREAMBLE_TYPE,
-		.preamble = itp->preamble,
-	};
-	int len;
-	u8 da_addr[6] = ITP_DEFAULT_DA_ADDR;
-
-	/* Rates index 4 and 5 are not supported */
-	if (itp->rate > 3)
-		itp->rate += 2;
-
-	pr_debug("[ITP] TX start: band = %d, ch = %d, rate = %d, preamble = %d, number = %d, data_mode = %d, interval = %d, power = %d, data_len = %d\n",
-		 itp->band, itp->ch, itp->rate, itp->preamble,
-		 itp->number, itp->data_mode, itp->interval_us,
-		 itp->power, itp->data_len);
-
-	len = itp->hdr_len + itp->data_len;
-
-	itp->data = kmalloc(len, GFP_KERNEL);
-	tx = (struct wsm_tx *)itp->data;
-	tx->hdr.len = itp->data_len + itp->hdr_len;
-	tx->hdr.id = __cpu_to_le16(0x0004 | 1 << 6);
-	tx->max_tx_rate = itp->rate;
-	tx->queue_id = 3;
-	tx->more = 0;
-	tx->flags = 0xc;
-	tx->packet_id = 0x55ff55;
-	tx->reserved = 0;
-	tx->expire_time = 1;
-
-	if (itp->preamble == ITP_PREAMBLE_GREENFIELD)
-		tx->ht_tx_parameters = WSM_HT_TX_GREENFIELD;
-	else if (itp->preamble == ITP_PREAMBLE_MIXED)
-		tx->ht_tx_parameters = WSM_HT_TX_MIXED;
-
-	hdr = (struct ieee80211_hdr_3addr *)&itp->data[sizeof(struct wsm_tx)];
-	memset(hdr, 0, sizeof(*hdr));
-	hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |	IEEE80211_FCTL_TODS);
-	memcpy(hdr->addr1, da_addr, ETH_ALEN);
-	memcpy(hdr->addr2, priv->vif->addr, ETH_ALEN);
-	memcpy(hdr->addr3, da_addr, ETH_ALEN);
-
-	cw1200_itp_fill_pattern(&itp->data[itp->hdr_len],
-				itp->data_len, itp->data_mode);
-
-	cw1200_update_listening(priv, false);
-	priv->channel = &priv->hw->wiphy->bands[itp->band]->channels[itp->ch];
-	WARN_ON(wsm_set_output_power(priv, itp->power));
-	if (itp->preamble == ITP_PREAMBLE_SHORT ||
-	    itp->preamble == ITP_PREAMBLE_LONG)
-		WARN_ON(wsm_set_association_mode(priv,
-						 &assoc_mode));
-	wsm_set_bssid_filtering(priv, false);
-	cw1200_update_listening(priv, true);
-
-	spin_lock_bh(&itp->tx_lock);
-	atomic_set(&itp->test_mode, TEST_MODE_TX_TEST);
-	atomic_set(&itp->awaiting_confirm, 0);
-	atomic_set(&itp->stop_tx, 0);
-	atomic_set(&priv->bh_tx, 1);
-	ktime_get_ts(&itp->last_sent);
-	wake_up(&priv->bh_wq);
-	spin_unlock_bh(&itp->tx_lock);
-}
-
-void __cw1200_itp_tx_stop(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	spin_lock_bh(&itp->tx_lock);
-	kfree(itp->data);
-	itp->data = NULL;
-	atomic_set(&itp->test_mode, TEST_MODE_NO_TEST);
-	spin_unlock_bh(&itp->tx_lock);
-}
-
-static void cw1200_itp_tx_stop(struct cw1200_common *priv)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	pr_debug("[ITP] TX stop\n");
-	atomic_set(&itp->stop_tx, 1);
-	flush_workqueue(priv->workqueue);
-
-	/* time for FW to confirm all tx requests */
-	msleep(500);
-
-	__cw1200_itp_tx_stop(priv);
-}
-
-static int cw1200_print_fw_version(struct cw1200_common *priv,
-				   u8 *buf, size_t len)
-{
-	return snprintf(buf, len, "%s %d.%d",
-			cw1200_fw_types[priv->wsm_caps.fw_type],
-			priv->wsm_caps.fw_ver,
-			priv->wsm_caps.fw_build);
-}
-
-static void cw1200_itp_get_version(struct cw1200_common *priv,
-		enum cw1200_itp_version_type type)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	struct sk_buff *skb;
-	char buf[ITP_BUF_SIZE];
-	size_t size = 0;
-	int len;
-	pr_debug("[ITP] print %s version\n",
-		 type == ITP_CHIP_ID ? "chip" : "firmware");
-
-	len = snprintf(buf, ITP_BUF_SIZE, "2,");
-	if (len <= 0) {
-		cw1200_itp_err(priv, -EINVAL, 40);
-		return;
-	}
-	size += len;
-
-	switch (type) {
-	case ITP_CHIP_ID:
-		len = cw1200_print_fw_version(priv, buf+size,
-				ITP_BUF_SIZE - size);
-
-		if (len <= 0) {
-			cw1200_itp_err(priv, -EINVAL, 41);
-			return;
-		}
-		size += len;
-		break;
-	case ITP_FW_VER:
-		len = snprintf(buf+size, ITP_BUF_SIZE - size,
-				"%d.%d", priv->wsm_caps.hw_id,
-				priv->wsm_caps.hw_subid);
-		if (len <= 0) {
-			cw1200_itp_err(priv, -EINVAL, 42);
-			return;
-		}
-		size += len;
-		break;
-	default:
-		cw1200_itp_err(priv, -EINVAL, 43);
-		break;
-	}
-
-	len = snprintf(buf+size, ITP_BUF_SIZE-size, "\n");
-	if (len <= 0) {
-		cw1200_itp_err(priv, -EINVAL, 44);
-		return;
-	}
-	size += len;
-
-	skb = dev_alloc_skb(size);
-	if (!skb) {
-		cw1200_itp_err(priv, -ENOMEM, 45);
-		return;
-	}
-
-	skb_trim(skb, 0);
-	skb_put(skb, size);
-
-	memcpy(skb->data, buf, size);
-	skb_queue_tail(&itp->log_queue, skb);
-	wake_up(&itp->read_wait);
-}
-
-int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
-		size_t *tx_len, int *burst)
-{
-	struct cw1200_itp *itp;
-	struct timespec now;
-	int time_left_us;
-
-	if (!priv->debug)
-		return 0;
-
-	itp	= &priv->debug->itp;
-
-	if (!itp)
-		return 0;
-
-	spin_lock_bh(&itp->tx_lock);
-	if (atomic_read(&itp->test_mode) != TEST_MODE_TX_TEST)
-		goto out;
-
-	if (atomic_read(&itp->stop_tx))
-		goto out;
-
-	if (itp->number == 0) {
-		atomic_set(&itp->stop_tx, 1);
-		queue_delayed_work(priv->workqueue, &itp->tx_finish, HZ/10);
-		goto out;
-	}
-
-	if (!itp->data)
-		goto out;
-
-	if (priv->hw_bufs_used >= 2) {
-		if (!atomic_read(&priv->bh_rx))
-			atomic_set(&priv->bh_rx, 1);
-		atomic_set(&priv->bh_tx, 1);
-		goto out;
-	}
-
-	ktime_get_ts(&now);
-	time_left_us = (itp->last_sent.tv_sec -	now.tv_sec)*1000000 +
-		(itp->last_sent.tv_nsec - now.tv_nsec)/1000 +
-		itp->interval_us;
-
-	if (time_left_us > ITP_TIME_THRES_US) {
-		queue_delayed_work(priv->workqueue, &itp->tx_work,
-				   ITP_US_TO_MS(time_left_us)*HZ/1000);
-		goto out;
-	}
-
-	if (time_left_us > 50)
-		udelay(time_left_us);
-
-	if (itp->number > 0)
-		itp->number--;
-
-	*data = itp->data;
-	*tx_len = itp->data_len + itp->hdr_len;
-
-	if (itp->data_mode == ITP_DATA_RANDOM)
-		cw1200_itp_fill_pattern(&itp->data[itp->hdr_len],
-					itp->data_len, itp->data_mode);
-	*burst = 2;
-	atomic_set(&priv->bh_tx, 1);
-	ktime_get_ts(&itp->last_sent);
-	atomic_add(1, &itp->awaiting_confirm);
-	spin_unlock_bh(&itp->tx_lock);
-	return 1;
-
-out:
-	spin_unlock_bh(&itp->tx_lock);
-	return 0;
-}
-
-bool cw1200_itp_rxed(struct cw1200_common *priv, struct sk_buff *skb)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	struct ieee80211_rx_status *rx = IEEE80211_SKB_RXCB(skb);
-	int signal;
-
-	if (atomic_read(&itp->test_mode) != TEST_MODE_RX_TEST)
-		return cw1200_is_itp(priv);
-	if (rx->freq != priv->channel->center_freq)
-		return true;
-
-	signal = rx->signal;
-	itp->rx_cnt++;
-	itp->rx_rssi += signal;
-	if (itp->rx_rssi_min > rx->signal)
-		itp->rx_rssi_min = rx->signal;
-	if (itp->rx_rssi_max < rx->signal)
-		itp->rx_rssi_max = rx->signal;
-
-	return true;
-}
-
-void cw1200_itp_wake_up_tx(struct cw1200_common *priv)
-{
-	wake_up(&priv->debug->itp.write_wait);
-}
-
-bool cw1200_itp_tx_running(struct cw1200_common *priv)
-{
-	if (atomic_read(&priv->debug->itp.awaiting_confirm) ||
-	    atomic_read(&priv->debug->itp.test_mode) ==
-	    TEST_MODE_TX_TEST) {
-		atomic_sub(1, &priv->debug->itp.awaiting_confirm);
-		return true;
-	}
-	return false;
-}
-
-static void cw1200_itp_handle(struct cw1200_common *priv,
-			      struct sk_buff *skb)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	const struct wiphy *wiphy = priv->hw->wiphy;
-	int cmd;
-	int ret;
-
-	pr_debug("[ITP] <<< %s", skb->data);
-	if (sscanf(skb->data, "%d", &cmd) != 1) {
-		cw1200_itp_err(priv, -EINVAL, 1);
-		return;
-	}
-
-	switch (cmd) {
-	case 1: /* RX test */
-		if (atomic_read(&itp->test_mode)) {
-			cw1200_itp_err(priv, -EBUSY, 0);
-			return;
-		}
-		ret = sscanf(skb->data, "%d,%d,%d",
-				&cmd, &itp->band, &itp->ch);
-		if (ret != 3) {
-			cw1200_itp_err(priv, -EINVAL, ret + 1);
-			return;
-		}
-		if (itp->band >= 2) {
-			cw1200_itp_err(priv, -EINVAL, 2);
-		} else if (!wiphy->bands[itp->band]) {
-			cw1200_itp_err(priv, -EINVAL, 2);
-		} else if (itp->ch >= wiphy->bands[itp->band]->n_channels) {
-			cw1200_itp_err(priv, -EINVAL, 3);
-		} else {
-			cw1200_itp_rx_stats(priv);
-			cw1200_itp_rx_start(priv);
-		}
-		break;
-	case 2: /* RX stat */
-		cw1200_itp_rx_stats(priv);
-		break;
-	case 3: /* RX/TX stop */
-		if (atomic_read(&itp->test_mode) == TEST_MODE_RX_TEST) {
-			cw1200_itp_rx_stats(priv);
-			cw1200_itp_rx_stop(priv);
-		} else if (atomic_read(&itp->test_mode) == TEST_MODE_TX_TEST) {
-			cw1200_itp_tx_stop(priv);
-		} else {
-			cw1200_itp_err(priv, -EBUSY, 0);
-		}
-		break;
-	case 4: /* TX start */
-		if (atomic_read(&itp->test_mode) != TEST_MODE_NO_TEST) {
-			cw1200_itp_err(priv, -EBUSY, 0);
-			return;
-		}
-		ret = sscanf(skb->data, "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d",
-				&cmd, &itp->band, &itp->ch, &itp->rate,
-				&itp->preamble, &itp->number, &itp->data_mode,
-				&itp->interval_us, &itp->power, &itp->data_len);
-		if (ret != 10) {
-			cw1200_itp_err(priv, -EINVAL, ret + 1);
-			return;
-		}
-		if (itp->band >= 2) {
-			cw1200_itp_err(priv, -EINVAL, 2);
-		} else if (!wiphy->bands[itp->band]) {
-			cw1200_itp_err(priv, -EINVAL, 2);
-		} else if (itp->ch >= wiphy->bands[itp->band]->n_channels) {
-			cw1200_itp_err(priv, -EINVAL, 3);
-		} else if (itp->rate >= 20) {
-			cw1200_itp_err(priv, -EINVAL, 4);
-		} else if (itp->preamble >= ITP_PREAMBLE_MAX) {
-			cw1200_itp_err(priv, -EINVAL, 5);
-		} else if (itp->data_mode >= ITP_DATA_MAX_MODE) {
-			cw1200_itp_err(priv, -EINVAL, 7);
-		} else if (itp->data_len < ITP_MIN_DATA_SIZE ||
-			   itp->data_len > (priv->wsm_caps.input_buffer_size - itp->hdr_len)) {
-			cw1200_itp_err(priv, -EINVAL, 8);
-		} else {
-		    cw1200_itp_tx_start(priv);
-		}
-		break;
-	case 5:
-		cw1200_itp_get_version(priv, ITP_CHIP_ID);
-		break;
-	case 6:
-		cw1200_itp_get_version(priv, ITP_FW_VER);
-		break;
-	}
-}
-
-static void cw1200_itp_err(struct cw1200_common *priv,
-			   int err, int arg)
-{
-	struct cw1200_itp *itp = &priv->debug->itp;
-	struct sk_buff *skb;
-	static char buf[255];
-	int len;
-
-	len = snprintf(buf, sizeof(buf), "%d,%d\n",
-		err, arg);
-	if (len <= 0)
-		return;
-
-	skb = dev_alloc_skb(len);
-	if (!skb)
-		return;
-
-	skb_trim(skb, 0);
-	skb_put(skb, len);
-
-	memcpy(skb->data, buf, len);
-	skb_queue_tail(&itp->log_queue, skb);
-	wake_up(&itp->read_wait);
-
-	len = sprint_symbol(buf,
-			(unsigned long)__builtin_return_address(0));
-	if (len <= 0)
-		return;
-	pr_debug("[ITP] error %d,%d from %s\n",
-		 err, arg, buf);
-}
diff --git a/drivers/net/wireless/cw1200/itp.h b/drivers/net/wireless/cw1200/itp.h
deleted file mode 100644
index 1e9dfb7..0000000
--- a/drivers/net/wireless/cw1200/itp.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * ITP code for ST-Ericsson CW1200 mac80211 driver
- *
- * Copyright (c) 2011, ST-Ericsson
- * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef CW1200_ITP_H_INCLUDED
-#define CW1200_ITP_H_INCLUDED
-
-struct cw200_common;
-struct wsm_tx_confirm;
-struct dentry;
-
-#ifdef CONFIG_CW1200_ITP
-
-/*extern*/ struct ieee80211_channel;
-
-#define TEST_MODE_NO_TEST	(0)
-#define TEST_MODE_RX_TEST	(1)
-#define TEST_MODE_TX_TEST	(2)
-#define ITP_DEFAULT_DA_ADDR {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}
-#define ITP_MIN_DATA_SIZE 6
-#define ITP_MAX_DATA_SIZE 1600
-#define ITP_TIME_THRES_US 10000
-#define ITP_US_TO_MS(x) ((x)/1000)
-#define ITP_MS_TO_US(x) ((x)*1000)
-#define ITP_BUF_SIZE 255
-
-
-enum cw1200_itp_data_modes {
-	ITP_DATA_ZEROS,
-	ITP_DATA_ONES,
-	ITP_DATA_ZERONES,
-	ITP_DATA_RANDOM,
-	ITP_DATA_MAX_MODE,
-};
-
-enum cw1200_itp_version_type {
-	ITP_CHIP_ID,
-	ITP_FW_VER,
-};
-
-enum cw1200_itp_preamble_type {
-	ITP_PREAMBLE_LONG,
-	ITP_PREAMBLE_SHORT,
-	ITP_PREAMBLE_OFDM,
-	ITP_PREAMBLE_MIXED,
-	ITP_PREAMBLE_GREENFIELD,
-	ITP_PREAMBLE_MAX,
-};
-
-
-struct cw1200_itp {
-	struct cw1200_common	*priv;
-	atomic_t		open_count;
-	atomic_t		awaiting_confirm;
-	struct sk_buff_head	log_queue;
-	wait_queue_head_t	read_wait;
-	wait_queue_head_t	write_wait;
-	wait_queue_head_t	close_wait;
-	struct ieee80211_channel *saved_channel;
-	atomic_t		stop_tx;
-	struct delayed_work	tx_work;
-	struct delayed_work	tx_finish;
-	spinlock_t		tx_lock;
-	struct timespec		last_sent;
-	atomic_t		test_mode;
-	int			rx_cnt;
-	long			rx_rssi;
-	int			rx_rssi_max;
-	int			rx_rssi_min;
-	unsigned		band;
-	unsigned		ch;
-	unsigned		rate;
-	unsigned		preamble;
-	unsigned int		number;
-	unsigned		data_mode;
-	int			interval_us;
-	int			power;
-	u8			*data;
-	int			hdr_len;
-	int			data_len;
-};
-
-int cw1200_itp_init(struct cw1200_common *priv);
-void cw1200_itp_release(struct cw1200_common *priv);
-
-bool cw1200_is_itp(struct cw1200_common *priv);
-bool cw1200_itp_rxed(struct cw1200_common *priv, struct sk_buff *skb);
-void cw1200_itp_wake_up_tx(struct cw1200_common *priv);
-int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
-		size_t *tx_len, int *burst);
-bool cw1200_itp_tx_running(struct cw1200_common *priv);
-
-#else /* CONFIG_CW1200_ITP */
-
-static inline int cw1200_itp_init(struct cw1200_common *priv)
-{
-	return 0;
-}
-
-static inline void cw1200_itp_release(struct cw1200_common *priv)
-{
-}
-
-static inline bool cw1200_is_itp(struct cw1200_common *priv)
-{
-	return false;
-}
-
-static inline bool cw1200_itp_rxed(struct cw1200_common *priv,
-				   struct sk_buff *skb)
-{
-	return false;
-}
-
-
-static inline void cw1200_itp_consume_txed(struct cw1200_common *priv)
-{
-}
-
-static inline void cw1200_itp_wake_up_tx(struct cw1200_common *priv)
-{
-}
-
-static inline int cw1200_itp_get_tx(struct cw1200_common *priv, u8 **data,
-				    size_t *tx_len, int *burst)
-{
-	return 0;
-}
-
-static inline bool cw1200_itp_tx_running(struct cw1200_common *priv)
-{
-	return false;
-}
-
-#endif /* CONFIG_CW1200_ITP */
-
-#endif /* CW1200_ITP_H_INCLUDED */
diff --git a/drivers/net/wireless/cw1200/txrx.c b/drivers/net/wireless/cw1200/txrx.c
index a254747..451d746 100644
--- a/drivers/net/wireless/cw1200/txrx.c
+++ b/drivers/net/wireless/cw1200/txrx.c
@@ -861,9 +861,6 @@ void cw1200_tx_confirm_cb(struct cw1200_common *priv,
 	pr_debug("[TX] TX confirm: %d, %d.\n",
 		 arg->status, arg->ack_failures);
 
-	if (cw1200_itp_tx_running(priv))
-		return;
-
 	if (priv->mode == NL80211_IFTYPE_UNSPECIFIED) {
 		/* STA is stopped. */
 		return;
@@ -1001,8 +998,7 @@ void cw1200_skb_dtor(struct cw1200_common *priv,
 					  txpriv->raw_link_id, txpriv->tid);
 		tx_policy_put(priv, txpriv->rate_id);
 	}
-	if (!cw1200_is_itp(priv))
-		ieee80211_tx_status(priv->hw, skb);
+	ieee80211_tx_status(priv->hw, skb);
 }
 
 void cw1200_rx_cb(struct cw1200_common *priv,
@@ -1205,9 +1201,7 @@ void cw1200_rx_cb(struct cw1200_common *priv,
 		grace_period = 1 * HZ;
 	cw1200_pm_stay_awake(&priv->pm_state, grace_period);
 
-	if (cw1200_itp_rxed(priv, skb)) {
-		consume_skb(skb);
-	} else if (early_data) {
+	if (early_data) {
 		spin_lock_bh(&priv->ps_state_lock);
 		/* Double-check status with lock held */
 		if (entry->status == CW1200_LINK_SOFT)
diff --git a/drivers/net/wireless/cw1200/wsm.c b/drivers/net/wireless/cw1200/wsm.c
index 3ab25f6..e99f34e 100644
--- a/drivers/net/wireless/cw1200/wsm.c
+++ b/drivers/net/wireless/cw1200/wsm.c
@@ -21,7 +21,6 @@
 #include "bh.h"
 #include "sta.h"
 #include "debug.h"
-#include "itp.h"
 
 #define WSM_CMD_TIMEOUT		(2 * HZ) /* With respect to interrupt loss */
 #define WSM_CMD_START_TIMEOUT	(7 * HZ)
@@ -1733,12 +1732,6 @@ int wsm_get_tx(struct cw1200_common *priv, u8 **data,
 	/* More is used only for broadcasts. */
 	bool more = false;
 
-#ifdef CONFIG_CW1200_ITP
-	count = cw1200_itp_get_tx(priv, data, tx_len, burst);
-	if (count)
-		return count;
-#endif
-
 	if (priv->wsm_cmd.ptr) { /* CMD request */
 		++count;
 		spin_lock(&priv->wsm_cmd.lock);
-- 
cgit v0.10.2


From 19db577868e94c80dc9a569d937109f95c34d0f4 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Tue, 11 Jun 2013 09:49:39 -0400
Subject: cw1200: Eliminate the ETF debug/engineering code.

This is only really useful for people who are bringing up new hardware
designs and have access to the proprietary vendor tools that interface
with this mode.

It'll live out of tree until it's rewritten to use a less kludgy interface.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/Kconfig b/drivers/net/wireless/cw1200/Kconfig
index fc1b472..0880742 100644
--- a/drivers/net/wireless/cw1200/Kconfig
+++ b/drivers/net/wireless/cw1200/Kconfig
@@ -27,14 +27,4 @@ config CW1200_WLAN_SPI
 	  need to add appropriate platform data glue in your board setup
 	  file.
 
-menu "Driver debug features"
-	depends on CW1200 && DEBUG_FS
-
-config CW1200_ETF
-	bool "Enable CW1200 Engineering Test Framework hooks"
-	help
-	  If you don't know what this is, just say N.
-
-endmenu
-
 endif
diff --git a/drivers/net/wireless/cw1200/cw1200.h b/drivers/net/wireless/cw1200/cw1200.h
index 95320f2..91ff7f1 100644
--- a/drivers/net/wireless/cw1200/cw1200.h
+++ b/drivers/net/wireless/cw1200/cw1200.h
@@ -35,11 +35,6 @@ struct task_struct;
 struct cw1200_debug_priv;
 struct firmware;
 
-#ifdef CONFIG_CW1200_ETF
-extern int etf_mode;
-extern char *etf_firmware;
-#endif
-
 #define CW1200_MAX_CTRL_FRAME_LEN	(0x1000)
 
 #define CW1200_MAX_STA_IN_AP_MODE	(5)
@@ -287,10 +282,6 @@ struct cw1200_common {
 	struct work_struct	linkid_reset_work;
 	u8			action_frame_sa[ETH_ALEN];
 	u8			action_linkid;
-
-#ifdef CONFIG_CW1200_ETF
-	struct sk_buff_head etf_q;
-#endif
 };
 
 struct cw1200_sta_priv {
diff --git a/drivers/net/wireless/cw1200/debug.c b/drivers/net/wireless/cw1200/debug.c
index ac9c219..e323b4d 100644
--- a/drivers/net/wireless/cw1200/debug.c
+++ b/drivers/net/wireless/cw1200/debug.c
@@ -357,144 +357,6 @@ static const struct file_operations fops_counters = {
 	.owner = THIS_MODULE,
 };
 
-#ifdef CONFIG_CW1200_ETF
-static int cw1200_etf_out_show(struct seq_file *seq, void *v)
-{
-	struct cw1200_common *priv = seq->private;
-	struct sk_buff *skb;
-	u32 len = 0;
-
-	skb = skb_dequeue(&priv->etf_q);
-
-	if (skb)
-		len = skb->len;
-
-	seq_write(seq, &len, sizeof(len));
-
-	if (skb) {
-		seq_write(seq, skb->data, len);
-		kfree_skb(skb);
-	}
-
-	return 0;
-}
-
-static int cw1200_etf_out_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, &cw1200_etf_out_show,
-			   inode->i_private);
-}
-
-static const struct file_operations fops_etf_out = {
-	.open = cw1200_etf_out_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
-
-struct etf_req_msg;
-static int etf_request(struct cw1200_common *priv,
-		       struct etf_req_msg *msg, u32 len);
-
-#define MAX_RX_SIZE 2600
-
-struct etf_in_state {
-	struct cw1200_common *priv;
-	u16 total_len;
-	u16 written;
-	u8 buf[MAX_RX_SIZE];
-};
-
-static int cw1200_etf_in_open(struct inode *inode, struct file *file)
-{
-	struct etf_in_state *etf = kmalloc(sizeof(struct etf_in_state),
-					   GFP_KERNEL);
-
-	if (!etf)
-		return -ENOMEM;
-
-	etf->written = 0;
-	etf->total_len = 0;
-	etf->priv = inode->i_private;
-
-	file->private_data = etf;
-
-	return 0;
-}
-
-static int cw1200_etf_in_release(struct inode *inode, struct file *file)
-{
-	kfree(file->private_data);
-	return 0;
-}
-
-static ssize_t cw1200_etf_in_write(struct file *file,
-	const char __user *user_buf, size_t count, loff_t *ppos)
-{
-	struct etf_in_state *etf = file->private_data;
-
-	ssize_t written = 0;
-
-	if (!etf->total_len) {
-		if (count < sizeof(etf->total_len)) {
-			pr_err("count < sizeof(total_len)\n");
-			return -EINVAL;
-		}
-
-		if (copy_from_user(&etf->total_len, user_buf,
-				   sizeof(etf->total_len))) {
-			pr_err("copy_from_user (len) failed\n");
-			return -EFAULT;
-		}
-
-		if (etf->total_len > MAX_RX_SIZE) {
-			pr_err("requested length > MAX_RX_SIZE\n");
-			return -EINVAL;
-		}
-
-		written += sizeof(etf->total_len);
-		count -= sizeof(etf->total_len);
-	}
-
-	if (!count)
-		goto done;
-
-	if (count > (etf->total_len - written)) {
-		pr_err("Tried to write > MAX_RX_SIZE\n");
-		return -EINVAL;
-	}
-
-	if (copy_from_user(etf->buf + etf->written, user_buf + written,
-			   count)) {
-		pr_err("copy_from_user (payload %zu) failed\n", count);
-		return -EFAULT;
-	}
-
-	written += count;
-	etf->written += count;
-
-	if (etf->written >= etf->total_len) {
-		if (etf_request(etf->priv, (struct etf_req_msg *)etf->buf,
-				etf->total_len)) {
-			pr_err("etf_request failed\n");
-			return -EIO;
-		}
-	}
-
-done:
-	return written;
-}
-
-static const struct file_operations fops_etf_in = {
-	.open = cw1200_etf_in_open,
-	.release = cw1200_etf_in_release,
-	.write = cw1200_etf_in_write,
-	.llseek = default_llseek,
-	.owner = THIS_MODULE,
-};
-#endif /* CONFIG_CW1200_ETF */
-
 static ssize_t cw1200_wsm_dumps(struct file *file,
 	const char __user *user_buf, size_t count, loff_t *ppos)
 {
@@ -542,19 +404,6 @@ int cw1200_debug_init(struct cw1200_common *priv)
 				 priv, &fops_counters))
 		goto err;
 
-#ifdef CONFIG_CW1200_ETF
-	if (etf_mode) {
-		skb_queue_head_init(&priv->etf_q);
-
-		if (!debugfs_create_file("etf_out", S_IRUSR, d->debugfs_phy,
-					 priv, &fops_etf_out))
-			goto err;
-		if (!debugfs_create_file("etf_in", S_IWUSR, d->debugfs_phy,
-					 priv, &fops_etf_in))
-			goto err;
-	}
-#endif /* CONFIG_CW1200_ETF */
-
 	if (!debugfs_create_file("wsm_dumps", S_IWUSR, d->debugfs_phy,
 				 priv, &fops_wsm_dumps))
 		goto err;
@@ -577,88 +426,3 @@ void cw1200_debug_release(struct cw1200_common *priv)
 		kfree(d);
 	}
 }
-
-#ifdef CONFIG_CW1200_ETF
-struct cw1200_sdd {
-	u8 id;
-	u8 len;
-	u8 data[];
-};
-
-struct etf_req_msg {
-	u32 id;
-	u32 len;
-	u8 data[];
-};
-
-static int parse_sdd_file(struct cw1200_common *priv, u8 *data, u32 length)
-{
-	struct cw1200_sdd *ie;
-
-	while (length > 0) {
-		ie = (struct cw1200_sdd *)data;
-		if (ie->id == SDD_REFERENCE_FREQUENCY_ELT_ID) {
-			priv->hw_refclk = cpu_to_le16(*((u16 *)ie->data));
-			pr_info("Using Reference clock frequency %d KHz\n",
-				priv->hw_refclk);
-			break;
-		}
-
-		length -= ie->len + sizeof(*ie);
-		data += ie->len + sizeof(*ie);
-	}
-	return 0;
-}
-
-char *etf_firmware;
-
-#define ST90TDS_START_ADAPTER           0x09 /* Loads firmware too */
-#define ST90TDS_STOP_ADAPTER            0x0A
-#define ST90TDS_CONFIG_ADAPTER          0x0E /* Send configuration params */
-#define ST90TDS_SBUS_READ               0x13
-#define ST90TDS_SBUS_WRITE              0x14
-#define ST90TDS_GET_DEVICE_OPTION       0x19
-#define ST90TDS_SET_DEVICE_OPTION       0x1A
-#define ST90TDS_SEND_SDD                0x1D /* SDD File used to find DPLL */
-
-#include "fwio.h"
-
-static int etf_request(struct cw1200_common *priv,
-		       struct etf_req_msg *msg,
-		       u32 len)
-{
-	int rval = -1;
-	switch (msg->id) {
-	case ST90TDS_START_ADAPTER:
-		etf_firmware = "cw1200_etf.bin";
-		pr_info("ETF_START (len %d, '%s')\n", len, etf_firmware);
-		rval = cw1200_load_firmware(priv);
-		break;
-	case ST90TDS_STOP_ADAPTER:
-		pr_info("ETF_STOP (unhandled)\n");
-		break;
-	case ST90TDS_SEND_SDD:
-		pr_info("ETF_SDD\n");
-		rval = parse_sdd_file(priv, msg->data, msg->len);
-		break;
-	case ST90TDS_CONFIG_ADAPTER:
-		pr_info("ETF_CONFIG_ADAP (unhandled)\n");
-		break;
-	case ST90TDS_SBUS_READ:
-		pr_info("ETF_SBUS_READ (unhandled)\n");
-		break;
-	case ST90TDS_SBUS_WRITE:
-		pr_info("ETF_SBUS_WRITE (unhandled)\n");
-		break;
-	case ST90TDS_SET_DEVICE_OPTION:
-		pr_info("ETF_SET_DEV_OPT (unhandled)\n");
-		break;
-	default:
-		pr_info("ETF_PASSTHRU (0x%08x)\n", msg->id);
-		rval = wsm_raw_cmd(priv, (u8 *)msg, len);
-		break;
-	}
-
-	return rval;
-}
-#endif /* CONFIG_CW1200_ETF */
diff --git a/drivers/net/wireless/cw1200/fwio.c b/drivers/net/wireless/cw1200/fwio.c
index 427c9f2..acdff0f 100644
--- a/drivers/net/wireless/cw1200/fwio.c
+++ b/drivers/net/wireless/cw1200/fwio.c
@@ -139,11 +139,6 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv)
 	val32 &= ~ST90TDS_CONFIG_CPU_CLK_DIS_BIT;
 	REG_WRITE(ST90TDS_CONFIG_REG_ID, val32);
 
-#ifdef CONFIG_CW1200_ETF
-	if (etf_mode)
-		fw_path = etf_firmware;
-#endif
-
 	/* Load a firmware file */
 	ret = request_firmware(&firmware, fw_path, priv->pdev);
 	if (ret) {
diff --git a/drivers/net/wireless/cw1200/main.c b/drivers/net/wireless/cw1200/main.c
index 2ea1bad..9f9adb4 100644
--- a/drivers/net/wireless/cw1200/main.c
+++ b/drivers/net/wireless/cw1200/main.c
@@ -61,12 +61,6 @@ int cw1200_power_mode = wsm_power_mode_quiescent;
 module_param(cw1200_power_mode, int, 0644);
 MODULE_PARM_DESC(cw1200_power_mode, "WSM power mode.  0 == active, 1 == doze, 2 == quiescent (default)");
 
-#ifdef CONFIG_CW1200_ETF
-int etf_mode;
-module_param(etf_mode, int, 0644);
-MODULE_PARM_DESC(etf_mode, "Enable EngineeringTestingFramework operation");
-#endif
-
 #define RATETAB_ENT(_rate, _rateid, _flags)		\
 	{						\
 		.bitrate	= (_rate),		\
@@ -418,11 +412,6 @@ static int cw1200_register_common(struct ieee80211_hw *dev)
 	struct cw1200_common *priv = dev->priv;
 	int err;
 
-#ifdef CONFIG_CW1200_ETF
-	if (etf_mode)
-		goto done;
-#endif
-
 #ifdef CONFIG_PM
 	err = cw1200_pm_init(&priv->pm_state, priv);
 	if (err) {
@@ -442,9 +431,6 @@ static int cw1200_register_common(struct ieee80211_hw *dev)
 		return err;
 	}
 
-#ifdef CONFIG_CW1200_ETF
-done:
-#endif
 	cw1200_debug_init(priv);
 
 	pr_info("Registered as '%s'\n", wiphy_name(dev->wiphy));
@@ -461,13 +447,7 @@ static void cw1200_unregister_common(struct ieee80211_hw *dev)
 	struct cw1200_common *priv = dev->priv;
 	int i;
 
-#ifdef CONFIG_CW1200_ETF
-	if (!etf_mode) {
-#endif
-		ieee80211_unregister_hw(dev);
-#ifdef CONFIG_CW1200_ETF
-	}
-#endif
+	ieee80211_unregister_hw(dev);
 
 	del_timer_sync(&priv->mcast_timeout);
 	cw1200_unregister_bh(priv);
@@ -568,11 +548,6 @@ int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
 	if (err)
 		goto err1;
 
-#ifdef CONFIG_CW1200_ETF
-	if (etf_mode)
-		goto skip_fw;
-#endif
-
 	err = cw1200_load_firmware(priv);
 	if (err)
 		goto err2;
@@ -594,9 +569,6 @@ int cw1200_core_probe(const struct hwbus_ops *hwbus_ops,
 	/* Enable multi-TX confirmation */
 	wsm_use_multi_tx_conf(priv, true);
 
-#ifdef CONFIG_CW1200_ETF
-skip_fw:
-#endif
 	err = cw1200_register_common(dev);
 	if (err)
 		goto err2;
diff --git a/drivers/net/wireless/cw1200/wsm.c b/drivers/net/wireless/cw1200/wsm.c
index e99f34e..d185f29 100644
--- a/drivers/net/wireless/cw1200/wsm.c
+++ b/drivers/net/wireless/cw1200/wsm.c
@@ -1111,10 +1111,7 @@ static int wsm_cmd_send(struct cw1200_common *priv,
 	 * pad the message by a few bytes to ensure
 	 * that it's completely received.
 	 */
-#ifdef CONFIG_CW1200_ETF
-	if (!etf_mode)
-#endif
-		buf_len += 4;
+	buf_len += 4;
 
 	/* Fill HI message header */
 	/* BH will add sequence number */
@@ -1165,29 +1162,6 @@ done:
 	return ret;
 }
 
-#ifdef CONFIG_CW1200_ETF
-int wsm_raw_cmd(struct cw1200_common *priv, u8 *data, size_t len)
-{
-	struct wsm_buf *buf = &priv->wsm_cmd_buf;
-	int ret;
-
-	u16 *cmd = (u16 *)(data + 2);
-
-	wsm_cmd_lock(priv);
-
-	WSM_PUT(buf, data + 4, len - 4);  /* Skip over header (u16+u16) */
-
-	ret = wsm_cmd_send(priv, buf, NULL, __le16_to_cpu(*cmd), WSM_CMD_TIMEOUT);
-
-	wsm_cmd_unlock(priv);
-	return ret;
-
-nomem:
-	wsm_cmd_unlock(priv);
-	return -ENOMEM;
-}
-#endif /* CONFIG_CW1200_ETF */
-
 /* ******************************************************************** */
 /* WSM TX port control							*/
 
@@ -1343,34 +1317,6 @@ int wsm_handle_rx(struct cw1200_common *priv, u16 id,
 	pr_debug("[WSM] <<< 0x%.4X (%td)\n", id,
 		 wsm_buf.end - wsm_buf.begin);
 
-#ifdef CONFIG_CW1200_ETF
-	if (etf_mode) {
-		struct sk_buff *skb = alloc_skb(wsm_buf.end - wsm_buf.begin, GFP_KERNEL);
-
-		/* Strip out Sequence num before passing up */
-		wsm->id = __le16_to_cpu(wsm->id);
-		wsm->id &= 0x0FFF;
-		wsm->id = __cpu_to_le16(wsm->id);
-
-		memcpy(skb_put(skb, wsm_buf.end - wsm_buf.begin),
-		       wsm_buf.begin,
-		       wsm_buf.end - wsm_buf.begin);
-		skb_queue_tail(&priv->etf_q, skb);
-
-		/* Special case for startup */
-		if (id == WSM_STARTUP_IND_ID) {
-			wsm_startup_indication(priv, &wsm_buf);
-		} else if (id & 0x0400) {
-			spin_lock(&priv->wsm_cmd.lock);
-			priv->wsm_cmd.done = 1;
-			spin_unlock(&priv->wsm_cmd.lock);
-			wake_up(&priv->wsm_cmd_wq);
-		}
-
-		goto out;
-	}
-#endif
-
 	if (id == WSM_TX_CONFIRM_IND_ID) {
 		ret = wsm_tx_confirm(priv, &wsm_buf, link_id);
 	} else if (id == WSM_MULTI_TX_CONFIRM_ID) {
diff --git a/drivers/net/wireless/cw1200/wsm.h b/drivers/net/wireless/cw1200/wsm.h
index 8d902d6..4689dff 100644
--- a/drivers/net/wireless/cw1200/wsm.h
+++ b/drivers/net/wireless/cw1200/wsm.h
@@ -1871,9 +1871,4 @@ static inline u8 wsm_queue_id_to_wsm(u8 queue_id)
 	return queue_mapping[queue_id];
 }
 
-
-#ifdef CONFIG_CW1200_ETF
-int wsm_raw_cmd(struct cw1200_common *priv, u8 *data, size_t len);
-#endif
-
 #endif /* CW1200_HWIO_H_INCLUDED */
-- 
cgit v0.10.2


From 8b3e7be437a6b62118d0485ad971e724afe23fdf Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Tue, 11 Jun 2013 09:49:40 -0400
Subject: cw1200: Fix an assorted pile of checkpatch warnings.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/bh.c b/drivers/net/wireless/cw1200/bh.c
index 324b570..c1ec2a4 100644
--- a/drivers/net/wireless/cw1200/bh.c
+++ b/drivers/net/wireless/cw1200/bh.c
@@ -31,7 +31,8 @@ static int cw1200_bh(void *arg);
 
 #define DOWNLOAD_BLOCK_SIZE_WR	(0x1000 - 4)
 /* an SPI message cannot be bigger than (2"12-1)*2 bytes
- * "*2" to cvt to bytes */
+ * "*2" to cvt to bytes
+ */
 #define MAX_SZ_RD_WR_BUFFERS	(DOWNLOAD_BLOCK_SIZE_WR*2)
 #define PIGGYBACK_CTRL_REG	(2)
 #define EFFECTIVE_BUF_SIZE	(MAX_SZ_RD_WR_BUFFERS - PIGGYBACK_CTRL_REG)
@@ -217,7 +218,8 @@ static int cw1200_device_wakeup(struct cw1200_common *priv)
 		return ret;
 
 	/* If the device returns WLAN_RDY as 1, the device is active and will
-	 * remain active. */
+	 * remain active.
+	 */
 	if (ctrl_reg & ST90TDS_CONT_RDY_BIT) {
 		pr_debug("[BH] Device awake.\n");
 		return 1;
@@ -262,7 +264,8 @@ static int cw1200_bh_rx_helper(struct cw1200_common *priv,
 	}
 
 	/* Add SIZE of PIGGYBACK reg (CONTROL Reg)
-	 * to the NEXT Message length + 2 Bytes for SKB */
+	 * to the NEXT Message length + 2 Bytes for SKB
+	 */
 	read_len = read_len + 2;
 
 	alloc_len = priv->hwbus_ops->align_size(
diff --git a/drivers/net/wireless/cw1200/cw1200.h b/drivers/net/wireless/cw1200/cw1200.h
index 91ff7f1..243e963 100644
--- a/drivers/net/wireless/cw1200/cw1200.h
+++ b/drivers/net/wireless/cw1200/cw1200.h
@@ -207,7 +207,8 @@ struct cw1200_common {
 	/* Scan status */
 	struct cw1200_scan scan;
 	/* Keep cw1200 awake (WUP = 1) 1 second after each scan to avoid
-	 * FW issue with sleeping/waking up. */
+	 * FW issue with sleeping/waking up.
+	 */
 	atomic_t			recent_scan;
 	struct delayed_work		clear_recent_scan_work;
 
diff --git a/drivers/net/wireless/cw1200/cw1200_sdio.c b/drivers/net/wireless/cw1200/cw1200_sdio.c
index bb1f405..ebdcdf4 100644
--- a/drivers/net/wireless/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/cw1200/cw1200_sdio.c
@@ -323,7 +323,8 @@ static int cw1200_sdio_probe(struct sdio_func *func,
 }
 
 /* Disconnect Function to be called by SDIO stack when
- * device is disconnected */
+ * device is disconnected
+ */
 static void cw1200_sdio_disconnect(struct sdio_func *func)
 {
 	struct hwbus_priv *self = sdio_get_drvdata(func);
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index e58f0a5..953bd19 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -47,15 +47,13 @@ struct hwbus_priv {
 #define SET_WRITE 0x7FFF /* usage: and operation */
 #define SET_READ 0x8000  /* usage: or operation */
 
-/*
-   Notes on byte ordering:
+/* Notes on byte ordering:
    LE:  B0 B1 B2 B3
    BE:  B3 B2 B1 B0
 
    Hardware expects 32-bit data to be written as 16-bit BE words:
 
    B1 B0 B3 B2
-
 */
 
 static int cw1200_spi_memcpy_fromio(struct hwbus_priv *self,
diff --git a/drivers/net/wireless/cw1200/hwio.h b/drivers/net/wireless/cw1200/hwio.h
index 7ee73fe..563329c 100644
--- a/drivers/net/wireless/cw1200/hwio.h
+++ b/drivers/net/wireless/cw1200/hwio.h
@@ -97,9 +97,8 @@ struct download_cntl_t {
 
 #define CW1200_APB(addr)		(PAC_SHARED_MEMORY_SILICON + (addr))
 
-/* ***************************************************************
-*Device register definitions
-*************************************************************** */
+/* Device register definitions */
+
 /* WBF - SPI Register Addresses */
 #define ST90TDS_ADDR_ID_BASE		(0x0000)
 /* 16/32 bits */
diff --git a/drivers/net/wireless/cw1200/sta.c b/drivers/net/wireless/cw1200/sta.c
index 679c55f..4cd0352 100644
--- a/drivers/net/wireless/cw1200/sta.c
+++ b/drivers/net/wireless/cw1200/sta.c
@@ -483,15 +483,14 @@ void cw1200_update_filtering(struct cw1200_common *priv)
 		bf_tbl.num = __cpu_to_le32(3);
 	}
 
-	/*
-	* When acting as p2p client being connected to p2p GO, in order to
-	* receive frames from a different p2p device, turn off bssid filter.
-	*
-	* WARNING: FW dependency!
-	* This can only be used with FW WSM371 and its successors.
-	* In that FW version even with bssid filter turned off,
-	* device will block most of the unwanted frames.
-	*/
+	/* When acting as p2p client being connected to p2p GO, in order to
+	 * receive frames from a different p2p device, turn off bssid filter.
+	 *
+	 * WARNING: FW dependency!
+	 * This can only be used with FW WSM371 and its successors.
+	 * In that FW version even with bssid filter turned off,
+	 * device will block most of the unwanted frames.
+	 */
 	if (is_p2p)
 		bssid_filtering = false;
 
@@ -1015,17 +1014,17 @@ void cw1200_event_handler(struct work_struct *work)
 			/* RSSI: signed Q8.0, RCPI: unsigned Q7.1
 			 * RSSI = RCPI / 2 - 110
 			 */
-			int rcpiRssi = (int)(event->evt.data & 0xFF);
+			int rcpi_rssi = (int)(event->evt.data & 0xFF);
 			int cqm_evt;
 			if (priv->cqm_use_rssi)
-				rcpiRssi = (s8)rcpiRssi;
+				rcpi_rssi = (s8)rcpi_rssi;
 			else
-				rcpiRssi =  rcpiRssi / 2 - 110;
+				rcpi_rssi =  rcpi_rssi / 2 - 110;
 
-			cqm_evt = (rcpiRssi <= priv->cqm_rssi_thold) ?
+			cqm_evt = (rcpi_rssi <= priv->cqm_rssi_thold) ?
 				NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW :
 				NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH;
-			pr_debug("[CQM] RSSI event: %d.\n", rcpiRssi);
+			pr_debug("[CQM] RSSI event: %d.\n", rcpi_rssi);
 			ieee80211_cqm_rssi_notify(priv->vif, cqm_evt,
 						  GFP_KERNEL);
 			break;
@@ -1068,8 +1067,7 @@ void cw1200_bss_params_work(struct work_struct *work)
 /* ******************************************************************** */
 /* Internal API								*/
 
-/*
- * This function is called to Parse the SDD file
+/* This function is called to Parse the SDD file
  * to extract listen_interval and PTA related information
  * sdd is a TLV: u8 id, u8 len, u8 data[]
  */
diff --git a/drivers/net/wireless/cw1200/txrx.c b/drivers/net/wireless/cw1200/txrx.c
index 451d746..44ca10c 100644
--- a/drivers/net/wireless/cw1200/txrx.c
+++ b/drivers/net/wireless/cw1200/txrx.c
@@ -75,9 +75,6 @@ static void tx_policy_build(const struct cw1200_common *priv,
 	BUG_ON(rates[0].idx < 0);
 	memset(policy, 0, sizeof(*policy));
 
-	/* minstrel is buggy a little bit, so distille
-	 * incoming rates first. */
-
 	/* Sort rates in descending order. */
 	for (i = 1; i < count; ++i) {
 		if (rates[i].idx < 0) {
@@ -108,7 +105,8 @@ static void tx_policy_build(const struct cw1200_common *priv,
 	count = i + 1;
 
 	/* Re-fill policy trying to keep every requested rate and with
-	 * respect to the global max tx retransmission count. */
+	 * respect to the global max tx retransmission count.
+	 */
 	if (limit < count)
 		limit = count;
 	if (total > limit) {
@@ -129,7 +127,6 @@ static void tx_policy_build(const struct cw1200_common *priv,
 	if (count == 2 && !(rates[0].flags & IEEE80211_TX_RC_MCS) &&
 	    rates[0].idx > 4 && rates[0].count > 2 &&
 	    rates[1].idx < 2) {
-		/* ">> 1" is an equivalent of "/ 2", but faster */
 		int mid_rate = (rates[0].idx + 4) >> 1;
 
 		/* Decrease number of retries for the initial rate */
@@ -151,7 +148,8 @@ static void tx_policy_build(const struct cw1200_common *priv,
 			/* Fallback to 1 Mbps is a really bad thing,
 			 * so let's try to increase probability of
 			 * successful transmission on the lowest g rate
-			 * even more */
+			 * even more
+			 */
 			if (rates[0].count >= 3) {
 				--rates[0].count;
 				++rates[2].count;
@@ -220,7 +218,8 @@ static int tx_policy_find(struct tx_policy_cache *cache,
 {
 	/* O(n) complexity. Not so good, but there's only 8 entries in
 	 * the cache.
-	 * Also lru helps to reduce search time. */
+	 * Also lru helps to reduce search time.
+	 */
 	struct tx_policy_cache_entry *it;
 	/* First search for policy in "used" list */
 	list_for_each_entry(it, &cache->used, link) {
@@ -264,7 +263,8 @@ void tx_policy_clean(struct cw1200_common *priv)
 	for (idx = 0; idx < TX_POLICY_CACHE_SIZE; idx++) {
 		entry = &cache->cache[idx];
 		/* Policy usage count should be 0 at this time as all queues
-		   should be empty */
+		   should be empty
+		 */
 		if (WARN_ON(entry->policy.usage_count)) {
 			entry->policy.usage_count = 0;
 			list_move(&entry->link, &cache->free);
@@ -319,7 +319,8 @@ static int tx_policy_get(struct cw1200_common *priv,
 		struct tx_policy_cache_entry *entry;
 		*renew = true;
 		/* If policy is not found create a new one
-		 * using the oldest entry in "free" list */
+		 * using the oldest entry in "free" list
+		 */
 		entry = list_entry(cache->free.prev,
 			struct tx_policy_cache_entry, link);
 		entry->policy = wanted;
@@ -612,7 +613,8 @@ cw1200_tx_h_bt(struct cw1200_common *priv,
 				 priv->listen_interval,
 				 mgt_frame->u.assoc_req.listen_interval);
 			/* Replace listen interval derieved from
-			 * the one read from SDD */
+			 * the one read from SDD
+			 */
 			mgt_frame->u.assoc_req.listen_interval =
 				priv->listen_interval;
 		}
@@ -667,7 +669,8 @@ cw1200_tx_h_rate_policy(struct cw1200_common *priv,
 		pr_debug("[TX] TX policy renew.\n");
 		/* It's not so optimal to stop TX queues every now and then.
 		 * Better to reimplement task scheduling with
-		 * a counter. TODO. */
+		 * a counter. TODO.
+		 */
 		wsm_lock_tx_async(priv);
 		cw1200_tx_queues_lock(priv);
 		if (queue_work(priv->workqueue,
@@ -832,8 +835,7 @@ static int cw1200_handle_pspoll(struct cw1200_common *priv,
 	priv->pspoll_mask |= pspoll_mask;
 	drop = 0;
 
-	/* Do not report pspols if data for given link id is
-	 * queued already. */
+	/* Do not report pspols if data for given link id is queued already. */
 	for (i = 0; i < 4; ++i) {
 		if (cw1200_queue_get_num_queued(&priv->tx_queue[i],
 						pspoll_mask)) {
@@ -924,7 +926,8 @@ void cw1200_tx_confirm_cb(struct cw1200_common *priv,
 			cw1200_debug_txed(priv);
 			if (arg->flags & WSM_TX_STATUS_AGGREGATION) {
 				/* Do not report aggregation to mac80211:
-				 * it confuses minstrel a lot. */
+				 * it confuses minstrel a lot.
+				 */
 				/* tx->flags |= IEEE80211_TX_STAT_AMPDU; */
 				cw1200_debug_txed_agg(priv);
 			}
@@ -1044,7 +1047,8 @@ void cw1200_rx_cb(struct cw1200_common *priv,
 	    ieee80211_is_action(frame->frame_control) &&
 	    (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)) {
 		/* Link ID already exists for the ACTION frame.
-		 * Reset and Remap */
+		 * Reset and Remap
+		 */
 		WARN_ON(work_pending(&priv->linkid_reset_work));
 		memcpy(&priv->action_frame_sa[0],
 		       ieee80211_get_SA(frame), ETH_ALEN);
@@ -1074,7 +1078,6 @@ void cw1200_rx_cb(struct cw1200_common *priv,
 		if (cw1200_handle_pspoll(priv, skb))
 			goto drop;
 
-	hdr->mactime = 0; /* Not supported by WSM */
 	hdr->band = ((arg->channel_number & 0xff00) ||
 		     (arg->channel_number > 14)) ?
 			IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
@@ -1102,7 +1105,8 @@ void cw1200_rx_cb(struct cw1200_common *priv,
 		hdr->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED;
 
 		/* Oops... There is no fast way to ask mac80211 about
-		 * IV/ICV lengths. Even defineas are not exposed.*/
+		 * IV/ICV lengths. Even defineas are not exposed.
+		 */
 		switch (WSM_RX_STATUS_ENCRYPTION(arg->flags)) {
 		case WSM_RX_STATUS_WEP:
 			iv_len = 4 /* WEP_IV_LEN */;
@@ -1149,6 +1153,8 @@ void cw1200_rx_cb(struct cw1200_common *priv,
 		hdr->mactime = le64_to_cpu(hdr->mactime);
 		if (skb->len >= 8)
 			skb_trim(skb, skb->len - 8);
+	} else {
+		hdr->mactime = 0;
 	}
 
 	cw1200_debug_rxed(priv);
@@ -1192,7 +1198,8 @@ void cw1200_rx_cb(struct cw1200_common *priv,
 
 	/* Stay awake after frame is received to give
 	 * userspace chance to react and acquire appropriate
-	 * wakelock. */
+	 * wakelock.
+	 */
 	if (ieee80211_is_auth(frame->frame_control))
 		grace_period = 5 * HZ;
 	else if (ieee80211_is_deauth(frame->frame_control))
diff --git a/drivers/net/wireless/cw1200/wsm.c b/drivers/net/wireless/cw1200/wsm.c
index d185f29..d95094f 100644
--- a/drivers/net/wireless/cw1200/wsm.c
+++ b/drivers/net/wireless/cw1200/wsm.c
@@ -1106,8 +1106,7 @@ static int wsm_cmd_send(struct cw1200_common *priv,
 	else
 		pr_debug("[WSM] >>> 0x%.4X (%zu)\n", cmd, buf_len);
 
-	/*
-	 * Due to buggy SPI on CW1200, we need to
+	/* Due to buggy SPI on CW1200, we need to
 	 * pad the message by a few bytes to ensure
 	 * that it's completely received.
 	 */
diff --git a/drivers/net/wireless/cw1200/wsm.h b/drivers/net/wireless/cw1200/wsm.h
index 4689dff..2816171 100644
--- a/drivers/net/wireless/cw1200/wsm.h
+++ b/drivers/net/wireless/cw1200/wsm.h
@@ -314,13 +314,16 @@ struct cw1200_common;
 #define WSM_JOIN_FLAGS_P2P_GO		BIT(1)
 /* Force to join BSS with the BSSID and the
  * SSID specified without waiting for beacons. The
- * ProbeForJoin parameter is ignored. */
+ * ProbeForJoin parameter is ignored.
+ */
 #define WSM_JOIN_FLAGS_FORCE		BIT(2)
 /* Give probe request/response higher
- * priority over the BT traffic */
+ * priority over the BT traffic
+ */
 #define WSM_JOIN_FLAGS_PRIO		BIT(3)
 /* Issue immediate join confirmation and use
- * join complete to notify about completion */
+ * join complete to notify about completion
+ */
 #define WSM_JOIN_FLAGS_FORCE_WITH_COMPLETE_IND BIT(5)
 
 /* Key types */
@@ -1015,22 +1018,19 @@ struct wsm_add_key {
 	u16 reserved;
 	union {
 		struct {
-			u8 peer[6];	/* MAC address of the
-						 * peer station */
+			u8 peer[6];	/* MAC address of the peer station */
 			u8 reserved;
 			u8 keylen;		/* Key length in bytes */
 			u8 keydata[16];		/* Key data */
 		} __packed wep_pairwise;
 		struct {
-			u8 keyid;		/* Unique per key identifier
-						 * (0..3) */
+			u8 keyid;	/* Unique per key identifier (0..3) */
 			u8 keylen;		/* Key length in bytes */
 			u16 reserved;
 			u8 keydata[16];		/* Key data */
 		} __packed wep_group;
 		struct {
-			u8 peer[6];	/* MAC address of the
-						 * peer station */
+			u8 peer[6];	/* MAC address of the peer station */
 			u16 reserved;
 			u8 keydata[16];	/* TKIP key data */
 			u8 rx_mic_key[8];		/* Rx MIC key */
@@ -1044,8 +1044,7 @@ struct wsm_add_key {
 			u8 rx_seqnum[8];	/* Receive Sequence Counter */
 		} __packed tkip_group;
 		struct {
-			u8 peer[6];	/* MAC address of the
-						 * peer station */
+			u8 peer[6];	/* MAC address of the peer station */
 			u16 reserved;
 			u8 keydata[16];	/* AES key data */
 		} __packed aes_pairwise;
@@ -1056,8 +1055,7 @@ struct wsm_add_key {
 			u8 rx_seqnum[8];	/* Receive Sequence Counter */
 		} __packed aes_group;
 		struct {
-			u8 peer[6];	/* MAC address of the
-						 * peer station */
+			u8 peer[6];	/* MAC address of the peer station */
 			u8 keyid;		/* Key ID */
 			u8 reserved;
 			u8 keydata[16];	/* WAPI key data */
@@ -1550,7 +1548,8 @@ struct wsm_tx_rate_retry_policy {
 	 *          finishes.
 	 * BIT(3) - Count initial frame transmission as part of
 	 *          rate retry counting but not as a retry
-	 *          attempt */
+	 *          attempt
+	 */
 	u8 flags;
 	u8 rate_recoveries;
 	u8 reserved[3];
@@ -1618,24 +1617,24 @@ static inline int wsm_set_udp_port_filter(struct cw1200_common *priv,
 #define D11_MAX_SSID_LEN		(32)
 
 struct wsm_p2p_device_type {
-	__le16 categoryId;
+	__le16 category_id;
 	u8 oui[4];
-	__le16 subCategoryId;
+	__le16 subcategory_id;
 } __packed;
 
 struct wsm_p2p_device_info {
 	struct wsm_p2p_device_type primaryDevice;
 	u8 reserved1[3];
-	u8 devNameSize;
-	u8 localDevName[D11_MAX_SSID_LEN];
+	u8 devname_size;
+	u8 local_devname[D11_MAX_SSID_LEN];
 	u8 reserved2[3];
-	u8 numSecDevSupported;
-	struct wsm_p2p_device_type secondaryDevices[0];
+	u8 num_secdev_supported;
+	struct wsm_p2p_device_type secdevs[0];
 } __packed;
 
 /* 4.36 SetWCDMABand - WO */
 struct wsm_cdma_band {
-	u8 WCDMA_Band;
+	u8 wcdma_band;
 	u8 reserved[3];
 } __packed;
 
@@ -1668,19 +1667,19 @@ struct wsm_ht_protection {
 #define WSM_GPIO_ALL_PINS	0xFF
 
 struct wsm_gpio_command {
-	u8 GPIO_Command;
+	u8 command;
 	u8 pin;
 	__le16 config;
 } __packed;
 
 /* 4.41 TSFCounter - RO */
 struct wsm_tsf_counter {
-	__le64 TSF_Counter;
+	__le64 tsf_counter;
 } __packed;
 
 /* 4.43 Keep alive period */
 struct wsm_keep_alive_period {
-	__le16 keepAlivePeriod;
+	__le16 period;
 	u8 reserved[2];
 } __packed;
 
@@ -1688,7 +1687,7 @@ static inline int wsm_keep_alive_period(struct cw1200_common *priv,
 					int period)
 {
 	struct wsm_keep_alive_period arg = {
-		.keepAlivePeriod = __cpu_to_le16(period),
+		.period = __cpu_to_le16(period),
 	};
 	return wsm_write_mib(priv, WSM_MIB_ID_KEEP_ALIVE_PERIOD,
 			&arg, sizeof(arg));
@@ -1739,13 +1738,13 @@ static inline int wsm_set_arp_ipv4_filter(struct cw1200_common *priv,
 
 /* P2P Power Save Mode Info - 4.31 */
 struct wsm_p2p_ps_modeinfo {
-	u8	oppPsCTWindow;
+	u8	opp_ps_ct_window;
 	u8	count;
 	u8	reserved;
-	u8	dtimCount;
+	u8	dtim_count;
 	__le32	duration;
 	__le32	interval;
-	__le32	startTime;
+	__le32	start_time;
 } __packed;
 
 static inline int wsm_set_p2p_ps_modeinfo(struct cw1200_common *priv,
-- 
cgit v0.10.2


From 629d0fa0da40958809e6577350c903b9368ef672 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 10 Jun 2013 13:42:40 +0300
Subject: iwlwifi: mvm: remove unused wait_for_ba field

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h
index 3efa0a0..94b265e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.h
@@ -250,7 +250,6 @@ enum iwl_mvm_agg_state {
  *	the first packet to be sent in legacy HW queue in Tx AGG stop flow.
  *	Basically when next_reclaimed reaches ssn, we can tell mac80211 that
  *	we are ready to finish the Tx AGG stop / start flow.
- * @wait_for_ba: Expect block-ack before next Tx reply
  */
 struct iwl_mvm_tid_data {
 	u16 seq_number;
@@ -260,7 +259,6 @@ struct iwl_mvm_tid_data {
 	enum iwl_mvm_agg_state state;
 	u16 txq_id;
 	u16 ssn;
-	bool wait_for_ba;
 };
 
 /**
-- 
cgit v0.10.2


From 0742a75a72ee52a7424554a1d49882dd9db195e3 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 10 Jun 2013 14:10:33 +0300
Subject: iwlwifi: mvm: fix irrelevant comment

This code moved and is now far away from the code that takes
the mutex.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index f297690..795f65c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -639,8 +639,7 @@ static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
 		 * By now, all the AC queues are empty. The AGG queues are
 		 * empty too. We already got all the Tx responses for all the
 		 * packets in the queues. The drain work can have been
-		 * triggered. Flush it. This work item takes the mutex, so kill
-		 * it before we take it.
+		 * triggered. Flush it.
 		 */
 		flush_work(&mvm->sta_drained_wk);
 	}
-- 
cgit v0.10.2


From 476a9e09cbe37bad93de6e460b76f89f3ad22c9b Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 11 Jun 2013 15:17:21 +0300
Subject: iwlwifi: ignore 0-length PHY DB sections

This can happen during development but can cause problems,
WARN (once) and go on.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-phy-db.c b/drivers/net/wireless/iwlwifi/iwl-phy-db.c
index 25745da..84acb4d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-phy-db.c
+++ b/drivers/net/wireless/iwlwifi/iwl-phy-db.c
@@ -413,6 +413,9 @@ static int iwl_phy_db_send_all_channel_groups(
 		if (!entry)
 			return -EINVAL;
 
+		if (WARN_ON_ONCE(!entry->size))
+			continue;
+
 		/* Send the requested PHY DB section */
 		err = iwl_send_phy_db_cmd(phy_db,
 					  type,
-- 
cgit v0.10.2


From 565f5a942b0391b528c5fc6f3c535900f4617816 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 5 Jun 2013 17:36:26 +0200
Subject: iwlwifi: include export.h instead of module.h

We only need EXPORT_SYMBOL_GPL, none of the other things
from module.h, so only include export.h.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.h b/drivers/net/wireless/iwlwifi/iwl-drv.h
index 7d14509..429337a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.h
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.h
@@ -62,8 +62,7 @@
 
 #ifndef __iwl_drv_h__
 #define __iwl_drv_h__
-
-#include <linux/module.h>
+#include <linux/export.h>
 
 /* for all modules */
 #define DRV_NAME        "iwlwifi"
-- 
cgit v0.10.2


From 5af01772ee1d6e96849adf728ff837bd71b119c0 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 9 Jun 2013 12:59:24 +0300
Subject: iwlwifi: mvm: properly tell the fw that a STA is awake

The firmware API wasn't being used correctly, fix that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index 2278858..f986eb5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -1292,17 +1292,11 @@ void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
 	struct iwl_mvm_add_sta_cmd cmd = {
 		.add_modify = STA_MODE_MODIFY,
 		.sta_id = mvmsta->sta_id,
-		.modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT,
-		.sleep_state_flags = cpu_to_le16(STA_SLEEP_STATE_AWAKE),
+		.station_flags_msk = cpu_to_le32(STA_FLG_PS),
 		.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color),
 	};
 	int ret;
 
-	/*
-	 * Same modify mask for sleep_tx_count and sleep_state_flags but this
-	 * should be fine since if we set the STA as "awake", then
-	 * sleep_tx_count is not relevant.
-	 */
 	ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, sizeof(cmd), &cmd);
 	if (ret)
 		IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
-- 
cgit v0.10.2


From 837fb69f10588caafc883c4473a864660e1403ce Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 9 Jun 2013 13:00:12 +0300
Subject: iwlwifi: mvm: don't set the MCAST queue in STA's queue list

The MCAST queue should be enabled after DTIM only.
According to fw API, the MCAST must not be attached to any
station, but should appear in the mcast_qid of the AP's
mac context only.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 46c7c05..273b0cc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -193,14 +193,11 @@ static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac,
 u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
 				struct ieee80211_vif *vif)
 {
-	u32 qmask, ac;
+	u32 qmask = 0, ac;
 
 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
 		return BIT(IWL_MVM_OFFCHANNEL_QUEUE);
 
-	qmask = (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) ?
-		BIT(vif->cab_queue) : 0;
-
 	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 		if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
 			qmask |= BIT(vif->hw_queue[ac]);
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index f986eb5..62fe520 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -229,9 +229,6 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm,
 		if (vif->hw_queue[i] != IEEE80211_INVAL_HW_QUEUE)
 			mvm_sta->tfd_queue_msk |= BIT(vif->hw_queue[i]);
 
-	if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
-		mvm_sta->tfd_queue_msk |= BIT(vif->cab_queue);
-
 	/* for HW restart - need to reset the seq_number etc... */
 	memset(mvm_sta->tid_data, 0, sizeof(mvm_sta->tid_data));
 
-- 
cgit v0.10.2


From 8eb3871076875f247483f4a1fe6713e6d440c53e Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Sat, 1 Jun 2013 20:17:18 +0300
Subject: iwlwifi: mvm: Update the supported interface combinations

iwlmvm does not support concurrent operation of AP with P2P Client/GO.
Update the interface limits to reflect that iwlmvm supports only
concurrent operation of station with AP and P2P Client/GO.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 1767a88..f091cf2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -81,12 +81,12 @@
 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
 	{
 		.max = 1,
-		.types = BIT(NL80211_IFTYPE_STATION) |
-			BIT(NL80211_IFTYPE_AP),
+		.types = BIT(NL80211_IFTYPE_STATION),
 	},
 	{
 		.max = 1,
-		.types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
+		.types = BIT(NL80211_IFTYPE_AP) |
+			BIT(NL80211_IFTYPE_P2P_CLIENT) |
 			BIT(NL80211_IFTYPE_P2P_GO),
 	},
 	{
-- 
cgit v0.10.2


From 130d3d68b52097c7ae081109f700b02776adcb9c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 6 Jun 2013 13:56:19 -0700
Subject: net_sched: psched_ratecfg_precompute() improvements

Before allowing 64bits bytes rates, refactor
psched_ratecfg_precompute() to get better comments
and increased accuracy.

rate_bps field is renamed to rate_bytes_ps, as we only
have to worry about bytes per second.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index df56760..6eab6336 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -680,7 +680,7 @@ static inline struct sk_buff *skb_act_clone(struct sk_buff *skb, gfp_t gfp_mask,
 #endif
 
 struct psched_ratecfg {
-	u64	rate_bps;
+	u64	rate_bytes_ps; /* bytes per second */
 	u32	mult;
 	u16	overhead;
 	u8	shift;
@@ -698,7 +698,7 @@ static inline void psched_ratecfg_getrate(struct tc_ratespec *res,
 					  const struct psched_ratecfg *r)
 {
 	memset(res, 0, sizeof(*res));
-	res->rate = r->rate_bps >> 3;
+	res->rate = r->rate_bytes_ps;
 	res->overhead = r->overhead;
 }
 
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 2022408..4626cef 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -901,37 +901,33 @@ void dev_shutdown(struct net_device *dev)
 void psched_ratecfg_precompute(struct psched_ratecfg *r,
 			       const struct tc_ratespec *conf)
 {
-	u64 factor;
-	u64 mult;
-	int shift;
-
 	memset(r, 0, sizeof(*r));
 	r->overhead = conf->overhead;
-	r->rate_bps = (u64)conf->rate << 3;
+	r->rate_bytes_ps = conf->rate;
 	r->mult = 1;
 	/*
-	 * Calibrate mult, shift so that token counting is accurate
-	 * for smallest packet size (64 bytes).  Token (time in ns) is
-	 * computed as (bytes * 8) * NSEC_PER_SEC / rate_bps.  It will
-	 * work as long as the smallest packet transfer time can be
-	 * accurately represented in nanosec.
+	 * The deal here is to replace a divide by a reciprocal one
+	 * in fast path (a reciprocal divide is a multiply and a shift)
+	 *
+	 * Normal formula would be :
+	 *  time_in_ns = (NSEC_PER_SEC * len) / rate_bps
+	 *
+	 * We compute mult/shift to use instead :
+	 *  time_in_ns = (len * mult) >> shift;
+	 *
+	 * We try to get the highest possible mult value for accuracy,
+	 * but have to make sure no overflows will ever happen.
 	 */
-	if (r->rate_bps > 0) {
-		/*
-		 * Higher shift gives better accuracy.  Find the largest
-		 * shift such that mult fits in 32 bits.
-		 */
-		for (shift = 0; shift < 16; shift++) {
-			r->shift = shift;
-			factor = 8LLU * NSEC_PER_SEC * (1 << r->shift);
-			mult = div64_u64(factor, r->rate_bps);
-			if (mult > UINT_MAX)
+	if (r->rate_bytes_ps > 0) {
+		u64 factor = NSEC_PER_SEC;
+
+		for (;;) {
+			r->mult = div64_u64(factor, r->rate_bytes_ps);
+			if (r->mult & (1U << 31) || factor & (1ULL << 63))
 				break;
+			factor <<= 1;
+			r->shift++;
 		}
-
-		r->shift = shift - 1;
-		factor = 8LLU * NSEC_PER_SEC * (1 << r->shift);
-		r->mult = div64_u64(factor, r->rate_bps);
 	}
 }
 EXPORT_SYMBOL(psched_ratecfg_precompute);
-- 
cgit v0.10.2


From 64153ce0a7b61b2a5cacb01805cbf670142339e9 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 6 Jun 2013 14:53:16 -0700
Subject: net_sched: htb: do not setup default rate estimators

With a thousand htb classes, est_timer() spends ~5 million cpu cycles
and throws out cpu cache, because each htb class has a default
rate estimator (est 4sec 16sec).

Most users do not use default rate estimators, so switch htb
to not setup ones.

Add a module parameter (htb_rate_est) so that users relying
on this default rate estimator can revert the behavior.

echo 1 >/sys/module/sch_htb/parameters/htb_rate_est

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 162fb80..1a3655a 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -65,6 +65,10 @@ static int htb_hysteresis __read_mostly = 0; /* whether to use mode hysteresis f
 module_param    (htb_hysteresis, int, 0640);
 MODULE_PARM_DESC(htb_hysteresis, "Hysteresis mode, less CPU load, less accurate");
 
+static int htb_rate_est = 0; /* htb classes have a default rate estimator */
+module_param(htb_rate_est, int, 0640);
+MODULE_PARM_DESC(htb_rate_est, "setup a default rate estimator (4sec 16sec) for htb classes");
+
 /* used internaly to keep status of single class */
 enum htb_cmode {
 	HTB_CANT_SEND,		/* class can't send and can't borrow */
@@ -1366,12 +1370,14 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 		if (!cl)
 			goto failure;
 
-		err = gen_new_estimator(&cl->bstats, &cl->rate_est,
-					qdisc_root_sleeping_lock(sch),
-					tca[TCA_RATE] ? : &est.nla);
-		if (err) {
-			kfree(cl);
-			goto failure;
+		if (htb_rate_est || tca[TCA_RATE]) {
+			err = gen_new_estimator(&cl->bstats, &cl->rate_est,
+						qdisc_root_sleeping_lock(sch),
+						tca[TCA_RATE] ? : &est.nla);
+			if (err) {
+				kfree(cl);
+				goto failure;
+			}
 		}
 
 		cl->refcnt = 1;
-- 
cgit v0.10.2


From e9897071350bd9d94a56b5b6f79c85b1a98fc7e7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 7 Jun 2013 08:48:57 -0700
Subject: igmp: hash a hash table to speedup ip_check_mc_rcu()

After IP route cache removal, multicast applications using
a lot of multicast addresses hit a O(N) behavior in ip_check_mc_rcu()

Add a per in_device hash table to get faster lookup.

This hash table is created only if the number of items in mc_list is
above 4.

Reported-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index 7f2bf15..e3362b5 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -84,6 +84,7 @@ struct ip_mc_list {
 		struct ip_mc_list *next;
 		struct ip_mc_list __rcu *next_rcu;
 	};
+	struct ip_mc_list __rcu *next_hash;
 	struct timer_list	timer;
 	int			users;
 	atomic_t		refcnt;
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index ea1e3b8..b99cd23 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -50,12 +50,17 @@ struct ipv4_devconf {
 	DECLARE_BITMAP(state, IPV4_DEVCONF_MAX);
 };
 
+#define MC_HASH_SZ_LOG 9
+
 struct in_device {
 	struct net_device	*dev;
 	atomic_t		refcnt;
 	int			dead;
 	struct in_ifaddr	*ifa_list;	/* IP ifaddr chain		*/
+
 	struct ip_mc_list __rcu	*mc_list;	/* IP multicast filter chain    */
+	struct ip_mc_list __rcu	* __rcu *mc_hash;
+
 	int			mc_count;	/* Number of installed mcasts	*/
 	spinlock_t		mc_tomb_lock;
 	struct ip_mc_list	*mc_tomb;
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index b047e2d..3469506 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -215,6 +215,7 @@ void in_dev_finish_destroy(struct in_device *idev)
 
 	WARN_ON(idev->ifa_list);
 	WARN_ON(idev->mc_list);
+	kfree(rcu_dereference_protected(idev->mc_hash, 1));
 #ifdef NET_REFCNT_DEBUG
 	pr_debug("%s: %p=%s\n", __func__, idev, dev ? dev->name : "NIL");
 #endif
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 450f625..f72011d 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1217,6 +1217,57 @@ static void igmp_group_added(struct ip_mc_list *im)
  *	Multicast list managers
  */
 
+static u32 ip_mc_hash(const struct ip_mc_list *im)
+{
+	return hash_32((u32)im->multiaddr, MC_HASH_SZ_LOG);
+}
+
+static void ip_mc_hash_add(struct in_device *in_dev,
+			   struct ip_mc_list *im)
+{
+	struct ip_mc_list __rcu **mc_hash;
+	u32 hash;
+
+	mc_hash = rtnl_dereference(in_dev->mc_hash);
+	if (mc_hash) {
+		hash = ip_mc_hash(im);
+		im->next_hash = rtnl_dereference(mc_hash[hash]);
+		rcu_assign_pointer(mc_hash[hash], im);
+		return;
+	}
+
+	/* do not use a hash table for small number of items */
+	if (in_dev->mc_count < 4)
+		return;
+
+	mc_hash = kzalloc(sizeof(struct ip_mc_list *) << MC_HASH_SZ_LOG,
+			  GFP_KERNEL);
+	if (!mc_hash)
+		return;
+
+	for_each_pmc_rtnl(in_dev, im) {
+		hash = ip_mc_hash(im);
+		im->next_hash = rtnl_dereference(mc_hash[hash]);
+		RCU_INIT_POINTER(mc_hash[hash], im);
+	}
+
+	rcu_assign_pointer(in_dev->mc_hash, mc_hash);
+}
+
+static void ip_mc_hash_remove(struct in_device *in_dev,
+			      struct ip_mc_list *im)
+{
+	struct ip_mc_list __rcu **mc_hash = rtnl_dereference(in_dev->mc_hash);
+	struct ip_mc_list *aux;
+
+	if (!mc_hash)
+		return;
+	mc_hash += ip_mc_hash(im);
+	while ((aux = rtnl_dereference(*mc_hash)) != im)
+		mc_hash = &aux->next_hash;
+	*mc_hash = im->next_hash;
+}
+
 
 /*
  *	A socket has joined a multicast group on device dev.
@@ -1258,6 +1309,8 @@ void ip_mc_inc_group(struct in_device *in_dev, __be32 addr)
 	in_dev->mc_count++;
 	rcu_assign_pointer(in_dev->mc_list, im);
 
+	ip_mc_hash_add(in_dev, im);
+
 #ifdef CONFIG_IP_MULTICAST
 	igmpv3_del_delrec(in_dev, im->multiaddr);
 #endif
@@ -1314,6 +1367,7 @@ void ip_mc_dec_group(struct in_device *in_dev, __be32 addr)
 	     ip = &i->next_rcu) {
 		if (i->multiaddr == addr) {
 			if (--i->users == 0) {
+				ip_mc_hash_remove(in_dev, i);
 				*ip = i->next_rcu;
 				in_dev->mc_count--;
 				igmp_group_dropped(i);
@@ -2321,12 +2375,25 @@ void ip_mc_drop_socket(struct sock *sk)
 int ip_check_mc_rcu(struct in_device *in_dev, __be32 mc_addr, __be32 src_addr, u16 proto)
 {
 	struct ip_mc_list *im;
+	struct ip_mc_list __rcu **mc_hash;
 	struct ip_sf_list *psf;
 	int rv = 0;
 
-	for_each_pmc_rcu(in_dev, im) {
-		if (im->multiaddr == mc_addr)
-			break;
+	mc_hash = rcu_dereference(in_dev->mc_hash);
+	if (mc_hash) {
+		u32 hash = hash_32((u32)mc_addr, MC_HASH_SZ_LOG);
+
+		for (im = rcu_dereference(mc_hash[hash]);
+		     im != NULL;
+		     im = rcu_dereference(im->next_hash)) {
+			if (im->multiaddr == mc_addr)
+				break;
+		}
+	} else {
+		for_each_pmc_rcu(in_dev, im) {
+			if (im->multiaddr == mc_addr)
+				break;
+		}
 	}
 	if (im && proto == IPPROTO_IGMP) {
 		rv = 1;
-- 
cgit v0.10.2


From 946d3bd7231be3b6202759ea0bea59989ae28c4a Mon Sep 17 00:00:00 2001
From: Shawn Bohrer <sbohrer@rgmadvisors.com>
Date: Fri, 7 Jun 2013 12:34:43 -0500
Subject: igmp: remove unnecessary in_device member zeroing

ip_mc_init_dev() is passed a freshly kzalloc'd in_device so it is
unnecessary to explicitly zero out the members.

Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index f72011d..a09190d 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1435,13 +1435,9 @@ void ip_mc_init_dev(struct in_device *in_dev)
 {
 	ASSERT_RTNL();
 
-	in_dev->mc_tomb = NULL;
 #ifdef CONFIG_IP_MULTICAST
-	in_dev->mr_gq_running = 0;
 	setup_timer(&in_dev->mr_gq_timer, igmp_gq_timer_expire,
 			(unsigned long)in_dev);
-	in_dev->mr_ifc_count = 0;
-	in_dev->mc_count     = 0;
 	setup_timer(&in_dev->mr_ifc_timer, igmp_ifc_timer_expire,
 			(unsigned long)in_dev);
 	in_dev->mr_qrv = IGMP_Unsolicited_Report_Count;
-- 
cgit v0.10.2


From da5bab079f9b7d90ba234965a14914ace55e45e9 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Sat, 8 Jun 2013 12:56:03 +0200
Subject: net: udp4: move GSO functions to udp_offload

Similarly to TCP offloading and UDPv6 offloading, move all related
UDPv4 functions to udp_offload.c to make things more explicit. Also,
by this, we can make those functions static.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/udp.h b/include/net/udp.h
index 065f379..b30a71a 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -187,6 +187,8 @@ extern int udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
 extern int udp_disconnect(struct sock *sk, int flags);
 extern unsigned int udp_poll(struct file *file, struct socket *sock,
 			     poll_table *wait);
+extern struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
+					      netdev_features_t features);
 extern int udp_lib_getsockopt(struct sock *sk, int level, int optname,
 			      char __user *optval, int __user *optlen);
 extern int udp_lib_setsockopt(struct sock *sk, int level, int optname,
@@ -262,11 +264,10 @@ extern int udp4_proc_init(void);
 extern void udp4_proc_exit(void);
 #endif
 
+extern int udpv4_offload_init(void);
+
 extern void udp_init(void);
 
-extern int udp4_ufo_send_check(struct sk_buff *skb);
-extern struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
-	netdev_features_t features);
 extern void udp_encap_enable(void);
 #if IS_ENABLED(CONFIG_IPV6)
 extern void udpv6_encap_enable(void);
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index 4d3e138..7fcf810 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -9,7 +9,7 @@ obj-y     := route.o inetpeer.o protocol.o \
 	     tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o \
 	     tcp_minisocks.o tcp_cong.o tcp_metrics.o tcp_fastopen.o \
 	     tcp_offload.o datagram.o raw.o udp.o udplite.o \
-	     arp.o icmp.o devinet.o af_inet.o  igmp.o \
+	     udp_offload.o arp.o icmp.o devinet.o af_inet.o igmp.o \
 	     fib_frontend.o fib_semantics.o fib_trie.o \
 	     inet_fragment.o ping.o
 
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 7b51429..5598b06 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1566,13 +1566,6 @@ static const struct net_protocol udp_protocol = {
 	.netns_ok =	1,
 };
 
-static const struct net_offload udp_offload = {
-	.callbacks = {
-		.gso_send_check = udp4_ufo_send_check,
-		.gso_segment = udp4_ufo_fragment,
-	},
-};
-
 static const struct net_protocol icmp_protocol = {
 	.handler =	icmp_rcv,
 	.err_handler =	icmp_err,
@@ -1672,7 +1665,7 @@ static int __init ipv4_offload_init(void)
 	/*
 	 * Add offloads
 	 */
-	if (inet_add_offload(&udp_offload, IPPROTO_UDP) < 0)
+	if (udpv4_offload_init() < 0)
 		pr_crit("%s: Cannot add UDP protocol offload\n", __func__);
 	if (tcpv4_offload_init() < 0)
 		pr_crit("%s: Cannot add TCP protocol offload\n", __func__);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 2955b25..f65bc32 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2290,29 +2290,8 @@ void __init udp_init(void)
 	sysctl_udp_wmem_min = SK_MEM_QUANTUM;
 }
 
-int udp4_ufo_send_check(struct sk_buff *skb)
-{
-	if (!pskb_may_pull(skb, sizeof(struct udphdr)))
-		return -EINVAL;
-
-	if (likely(!skb->encapsulation)) {
-		const struct iphdr *iph;
-		struct udphdr *uh;
-
-		iph = ip_hdr(skb);
-		uh = udp_hdr(skb);
-
-		uh->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, skb->len,
-				IPPROTO_UDP, 0);
-		skb->csum_start = skb_transport_header(skb) - skb->head;
-		skb->csum_offset = offsetof(struct udphdr, check);
-		skb->ip_summed = CHECKSUM_PARTIAL;
-	}
-	return 0;
-}
-
-static struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
-		netdev_features_t features)
+struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
+				       netdev_features_t features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
 	int mac_len = skb->mac_len;
@@ -2371,53 +2350,3 @@ static struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
 out:
 	return segs;
 }
-
-struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
-	netdev_features_t features)
-{
-	struct sk_buff *segs = ERR_PTR(-EINVAL);
-	unsigned int mss;
-	mss = skb_shinfo(skb)->gso_size;
-	if (unlikely(skb->len <= mss))
-		goto out;
-
-	if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
-		/* Packet is from an untrusted source, reset gso_segs. */
-		int type = skb_shinfo(skb)->gso_type;
-
-		if (unlikely(type & ~(SKB_GSO_UDP | SKB_GSO_DODGY |
-				      SKB_GSO_UDP_TUNNEL |
-				      SKB_GSO_GRE | SKB_GSO_MPLS) ||
-			     !(type & (SKB_GSO_UDP))))
-			goto out;
-
-		skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(skb->len, mss);
-
-		segs = NULL;
-		goto out;
-	}
-
-	/* Fragment the skb. IP headers of the fragments are updated in
-	 * inet_gso_segment()
-	 */
-	if (skb->encapsulation && skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL)
-		segs = skb_udp_tunnel_segment(skb, features);
-	else {
-		int offset;
-		__wsum csum;
-
-		/* Do software UFO. Complete and fill in the UDP checksum as
-		 * HW cannot do checksum of UDP packets sent as multiple
-		 * IP fragments.
-		 */
-		offset = skb_checksum_start_offset(skb);
-		csum = skb_checksum(skb, offset, skb->len - offset, 0);
-		offset += skb->csum_offset;
-		*(__sum16 *)(skb->data + offset) = csum_fold(csum);
-		skb->ip_summed = CHECKSUM_NONE;
-
-		segs = skb_segment(skb, features);
-	}
-out:
-	return segs;
-}
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
new file mode 100644
index 0000000..f35ecca
--- /dev/null
+++ b/net/ipv4/udp_offload.c
@@ -0,0 +1,100 @@
+/*
+ *	IPV4 GSO/GRO offload support
+ *	Linux INET implementation
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	UDPv4 GSO support
+ */
+
+#include <linux/skbuff.h>
+#include <net/udp.h>
+#include <net/protocol.h>
+
+static int udp4_ufo_send_check(struct sk_buff *skb)
+{
+	if (!pskb_may_pull(skb, sizeof(struct udphdr)))
+		return -EINVAL;
+
+	if (likely(!skb->encapsulation)) {
+		const struct iphdr *iph;
+		struct udphdr *uh;
+
+		iph = ip_hdr(skb);
+		uh = udp_hdr(skb);
+
+		uh->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, skb->len,
+				IPPROTO_UDP, 0);
+		skb->csum_start = skb_transport_header(skb) - skb->head;
+		skb->csum_offset = offsetof(struct udphdr, check);
+		skb->ip_summed = CHECKSUM_PARTIAL;
+	}
+
+	return 0;
+}
+
+static struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
+					 netdev_features_t features)
+{
+	struct sk_buff *segs = ERR_PTR(-EINVAL);
+	unsigned int mss;
+
+	mss = skb_shinfo(skb)->gso_size;
+	if (unlikely(skb->len <= mss))
+		goto out;
+
+	if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
+		/* Packet is from an untrusted source, reset gso_segs. */
+		int type = skb_shinfo(skb)->gso_type;
+
+		if (unlikely(type & ~(SKB_GSO_UDP | SKB_GSO_DODGY |
+				      SKB_GSO_UDP_TUNNEL |
+				      SKB_GSO_GRE | SKB_GSO_MPLS) ||
+			     !(type & (SKB_GSO_UDP))))
+			goto out;
+
+		skb_shinfo(skb)->gso_segs = DIV_ROUND_UP(skb->len, mss);
+
+		segs = NULL;
+		goto out;
+	}
+
+	/* Fragment the skb. IP headers of the fragments are updated in
+	 * inet_gso_segment()
+	 */
+	if (skb->encapsulation && skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL)
+		segs = skb_udp_tunnel_segment(skb, features);
+	else {
+		int offset;
+		__wsum csum;
+
+		/* Do software UFO. Complete and fill in the UDP checksum as
+		 * HW cannot do checksum of UDP packets sent as multiple
+		 * IP fragments.
+		 */
+		offset = skb_checksum_start_offset(skb);
+		csum = skb_checksum(skb, offset, skb->len - offset, 0);
+		offset += skb->csum_offset;
+		*(__sum16 *)(skb->data + offset) = csum_fold(csum);
+		skb->ip_summed = CHECKSUM_NONE;
+
+		segs = skb_segment(skb, features);
+	}
+out:
+	return segs;
+}
+
+static const struct net_offload udpv4_offload = {
+	.callbacks = {
+		.gso_send_check = udp4_ufo_send_check,
+		.gso_segment = udp4_ufo_fragment,
+	},
+};
+
+int __init udpv4_offload_init(void)
+{
+	return inet_add_offload(&udpv4_offload, IPPROTO_UDP);
+}
-- 
cgit v0.10.2


From 7a6e288d2745611bef5b614acf19644283765732 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Sat, 8 Jun 2013 14:18:16 +0200
Subject: pktgen: ipv6: numa: consolidate skb allocation to pktgen_alloc_skb

We currently allow for numa-node aware skb allocation only within the
fill_packet_ipv4() path, but not in fill_packet_ipv6(). Consolidate that
code to a common allocation helper to enable numa-node aware skb
allocation for ipv6, and use it in both paths. This also makes both
functions a bit more readable.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 303412d..9640972 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2627,6 +2627,29 @@ static void pktgen_finalize_skb(struct pktgen_dev *pkt_dev, struct sk_buff *skb,
 	pgh->tv_usec = htonl(timestamp.tv_usec);
 }
 
+static struct sk_buff *pktgen_alloc_skb(struct net_device *dev,
+					struct pktgen_dev *pkt_dev,
+					unsigned int extralen)
+{
+	struct sk_buff *skb = NULL;
+	unsigned int size = pkt_dev->cur_pkt_size + 64 + extralen +
+			    pkt_dev->pkt_overhead;
+
+	if (pkt_dev->flags & F_NODE) {
+		int node = pkt_dev->node >= 0 ? pkt_dev->node : numa_node_id();
+
+		skb = __alloc_skb(NET_SKB_PAD + size, GFP_NOWAIT, 0, node);
+		if (likely(skb)) {
+			skb_reserve(skb, NET_SKB_PAD);
+			skb->dev = dev;
+		}
+	} else {
+		 skb = __netdev_alloc_skb(dev, size, GFP_NOWAIT);
+	}
+
+	return skb;
+}
+
 static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 					struct pktgen_dev *pkt_dev)
 {
@@ -2657,32 +2680,13 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
 
 	datalen = (odev->hard_header_len + 16) & ~0xf;
 
-	if (pkt_dev->flags & F_NODE) {
-		int node;
-
-		if (pkt_dev->node >= 0)
-			node = pkt_dev->node;
-		else
-			node =  numa_node_id();
-
-		skb = __alloc_skb(NET_SKB_PAD + pkt_dev->cur_pkt_size + 64
-				  + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT, 0, node);
-		if (likely(skb)) {
-			skb_reserve(skb, NET_SKB_PAD);
-			skb->dev = odev;
-		}
-	}
-	else
-	  skb = __netdev_alloc_skb(odev,
-				   pkt_dev->cur_pkt_size + 64
-				   + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT);
-
+	skb = pktgen_alloc_skb(odev, pkt_dev, datalen);
 	if (!skb) {
 		sprintf(pkt_dev->result, "No memory");
 		return NULL;
 	}
-	prefetchw(skb->data);
 
+	prefetchw(skb->data);
 	skb_reserve(skb, datalen);
 
 	/*  Reserve for ethernet and IP header  */
@@ -2786,15 +2790,13 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
 	mod_cur_headers(pkt_dev);
 	queue_map = pkt_dev->cur_queue_map;
 
-	skb = __netdev_alloc_skb(odev,
-				 pkt_dev->cur_pkt_size + 64
-				 + 16 + pkt_dev->pkt_overhead, GFP_NOWAIT);
+	skb = pktgen_alloc_skb(odev, pkt_dev, 16);
 	if (!skb) {
 		sprintf(pkt_dev->result, "No memory");
 		return NULL;
 	}
-	prefetchw(skb->data);
 
+	prefetchw(skb->data);
 	skb_reserve(skb, 16);
 
 	/*  Reserve for ethernet and IP header  */
-- 
cgit v0.10.2


From 3f8b96379a820318db37f7b6e81e6e459ad56efe Mon Sep 17 00:00:00 2001
From: Hong zhi guo <honkiko@gmail.com>
Date: Sun, 9 Jun 2013 20:15:20 +0800
Subject: veth: remove redundant call of dev_alloc_name

it's called in the following register_netdevice. No need to call it
here.
Tested with "ip link add type veth" and "ip link add xxx%d type veth".

Signed-off-by: Hong Zhiguo <honkiko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 177f911..da86652 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -379,12 +379,6 @@ static int veth_newlink(struct net *src_net, struct net_device *dev,
 	else
 		snprintf(dev->name, IFNAMSIZ, DRV_NAME "%%d");
 
-	if (strchr(dev->name, '%')) {
-		err = dev_alloc_name(dev, dev->name);
-		if (err < 0)
-			goto err_alloc_name;
-	}
-
 	err = register_netdevice(dev);
 	if (err < 0)
 		goto err_register_dev;
@@ -404,7 +398,6 @@ static int veth_newlink(struct net *src_net, struct net_device *dev,
 
 err_register_dev:
 	/* nothing to do */
-err_alloc_name:
 err_configure_peer:
 	unregister_netdevice(peer);
 	return err;
-- 
cgit v0.10.2


From afd6eae13cc4229e25d59334cdc46d042b24a4a5 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Mon, 10 Jun 2013 00:16:52 +0400
Subject: 3c59x: consolidate error cleanup in vortex_init_one()

The PCI driver's probe() method  duplicates the error cleanup code each time it
has to do error exit. Consolidate the error cleanup code  in  one place and use
*goto* to jump to the right places.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c
index 30e7421..ad5272b 100644
--- a/drivers/net/ethernet/3com/3c59x.c
+++ b/drivers/net/ethernet/3com/3c59x.c
@@ -1012,10 +1012,8 @@ static int vortex_init_one(struct pci_dev *pdev,
 		goto out;
 
 	rc = pci_request_regions(pdev, DRV_NAME);
-	if (rc < 0) {
-		pci_disable_device(pdev);
-		goto out;
-	}
+	if (rc < 0)
+		goto out_disable;
 
 	unit = vortex_cards_found;
 
@@ -1032,23 +1030,24 @@ static int vortex_init_one(struct pci_dev *pdev,
 	if (!ioaddr) /* If mapping fails, fall-back to BAR 0... */
 		ioaddr = pci_iomap(pdev, 0, 0);
 	if (!ioaddr) {
-		pci_release_regions(pdev);
-		pci_disable_device(pdev);
 		rc = -ENOMEM;
-		goto out;
+		goto out_release;
 	}
 
 	rc = vortex_probe1(&pdev->dev, ioaddr, pdev->irq,
 			   ent->driver_data, unit);
-	if (rc < 0) {
-		pci_iounmap(pdev, ioaddr);
-		pci_release_regions(pdev);
-		pci_disable_device(pdev);
-		goto out;
-	}
+	if (rc < 0)
+		goto out_iounmap;
 
 	vortex_cards_found++;
+	goto out;
 
+out_iounmap:
+	pci_iounmap(pdev, ioaddr);
+out_release:
+	pci_release_regions(pdev);
+out_disable:
+	pci_disable_device(pdev);
 out:
 	return rc;
 }
-- 
cgit v0.10.2


From 941e173a538c58f7f60e3f70ab0e35d51563405b Mon Sep 17 00:00:00 2001
From: Tushar Behera <tushar.behera@linaro.org>
Date: Mon, 10 Jun 2013 17:05:05 +0530
Subject: net: fec: Convert to use devm_ioremap_resource

Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: netdev@vger.kernel.org
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index fa4a68f..c540055 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1876,17 +1876,17 @@ fec_probe(struct platform_device *pdev)
 	    (pdev->id_entry->driver_data & FEC_QUIRK_HAS_GBIT))
 		fep->pause_flag |= FEC_PAUSE_FLAG_AUTONEG;
 
-	fep->hwp = devm_request_and_ioremap(&pdev->dev, r);
+	fep->hwp = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(fep->hwp)) {
+		ret = PTR_ERR(fep->hwp);
+		goto failed_ioremap;
+	}
+
 	fep->pdev = pdev;
 	fep->dev_id = dev_id++;
 
 	fep->bufdesc_ex = 0;
 
-	if (!fep->hwp) {
-		ret = -ENOMEM;
-		goto failed_ioremap;
-	}
-
 	platform_set_drvdata(pdev, ndev);
 
 	ret = of_get_phy_mode(pdev->dev.of_node);
-- 
cgit v0.10.2


From eed5d29d7818cc7a84e60123555cae154e5b4a73 Mon Sep 17 00:00:00 2001
From: Tushar Behera <tushar.behera@linaro.org>
Date: Mon, 10 Jun 2013 17:05:06 +0530
Subject: net: emaclite: Convert to use devm_ioremap_resource

Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: netdev@vger.kernel.org
CC: "David S. Miller" <davem@davemloft.net>
CC: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 1cd131b..fd4dbda 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1159,9 +1159,11 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 	ndev->irq = res->start;
 
 	res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
-	lp->base_addr = devm_request_and_ioremap(&ofdev->dev, res);
-	if (!lp->base_addr)
+	lp->base_addr = devm_ioremap_resource(&ofdev->dev, res);
+	if (IS_ERR(lp->base_addr)) {
+		rc = PTR_ERR(lp->base_addr);
 		goto error;
+	}
 
 	ndev->mem_start = res->start;
 	ndev->mem_end = res->end;
-- 
cgit v0.10.2


From 32766fff24a761079636bb96c389411d24a334c6 Mon Sep 17 00:00:00 2001
From: Tushar Behera <tushar.behera@linaro.org>
Date: Mon, 10 Jun 2013 17:05:07 +0530
Subject: net: can: Convert to use devm_ioremap_resource

Commit 75096579c3ac ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: netdev@vger.kernel.org
CC: linux-can@vger.kernel.org
CC: Marc Kleine-Budde <mkl@pengutronix.de>
CC: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 6b6130b..b918c73 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -201,8 +201,8 @@ static int c_can_plat_probe(struct platform_device *pdev)
 			priv->instance = pdev->id;
 
 		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-		priv->raminit_ctrlreg =	devm_request_and_ioremap(&pdev->dev, res);
-		if (!priv->raminit_ctrlreg || priv->instance < 0)
+		priv->raminit_ctrlreg = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(priv->raminit_ctrlreg) || priv->instance < 0)
 			dev_info(&pdev->dev, "control memory is not used for raminit\n");
 		else
 			priv->raminit = c_can_hw_raminit;
-- 
cgit v0.10.2


From dffebd2c5cd528a136b276a2a75c56222312d7a4 Mon Sep 17 00:00:00 2001
From: Narendra K <narendra_k@dell.com>
Date: Mon, 10 Jun 2013 19:34:03 +0530
Subject: doc:networking: Update comment for dev_id field in netdevice.h

This patch updates the comment for 'dev_id' field in
'include/linux/netdevice.h' to reflect the intended
usage of 'dev_id'.

References: http://marc.info/?l=linux-netdev&m=136992115300526&w=2
References: http://marc.info/?l=linux-netdev&m=137062569014612&w=2

Signed-off-by: Narendra K <narendra_k@dell.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2ecb96d..e5d6557 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1174,8 +1174,10 @@ struct net_device {
 	unsigned char		addr_assign_type; /* hw address assignment type */
 	unsigned char		addr_len;	/* hardware address length	*/
 	unsigned char		neigh_priv_len;
-	unsigned short          dev_id;		/* for shared network cards */
-
+	unsigned short          dev_id;		/* Used to differentiate devices
+						 * that share the same link
+						 * layer address
+						 */
 	spinlock_t		addr_list_lock;
 	struct netdev_hw_addr_list	uc;	/* Unicast mac addresses */
 	struct netdev_hw_addr_list	mc;	/* Multicast mac addresses */
-- 
cgit v0.10.2


From 6c31ff366c1116823e77019bae3e92e9d77a49f4 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Mon, 10 Jun 2013 17:42:23 +0200
Subject: team: remove synchronize_rcu() called during queue override change

This patch removes synchronize_rcu() from function
__team_queue_override_port_del(). That can be done because it is ok to
do list_del_rcu() and list_add_tail_rcu() on the same list_head member
without calling synchronize_rcu() in between. A bit of refactoring
needed to be done because INIT_LIST_HEAD needed to be removed (to not
kill the forward pointer) as well.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 04e9adb..9cbe09d 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -725,9 +725,9 @@ static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb)
 static void __team_queue_override_port_del(struct team *team,
 					   struct team_port *port)
 {
+	if (!port->queue_id)
+		return;
 	list_del_rcu(&port->qom_list);
-	synchronize_rcu();
-	INIT_LIST_HEAD(&port->qom_list);
 }
 
 static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
@@ -749,9 +749,8 @@ static void __team_queue_override_port_add(struct team *team,
 	struct list_head *qom_list;
 	struct list_head *node;
 
-	if (!port->queue_id || !team_port_enabled(port))
+	if (!port->queue_id)
 		return;
-
 	qom_list = __team_get_qom_list(team, port->queue_id);
 	node = qom_list;
 	list_for_each_entry(cur, qom_list, qom_list) {
@@ -768,7 +767,7 @@ static void __team_queue_override_enabled_check(struct team *team)
 	bool enabled = false;
 
 	list_for_each_entry(port, &team->port_list, list) {
-		if (!list_empty(&port->qom_list)) {
+		if (port->queue_id) {
 			enabled = true;
 			break;
 		}
@@ -780,14 +779,44 @@ static void __team_queue_override_enabled_check(struct team *team)
 	team->queue_override_enabled = enabled;
 }
 
-static void team_queue_override_port_refresh(struct team *team,
-					     struct team_port *port)
+static void team_queue_override_port_prio_changed(struct team *team,
+						  struct team_port *port)
 {
+	if (!port->queue_id || team_port_enabled(port))
+		return;
 	__team_queue_override_port_del(team, port);
 	__team_queue_override_port_add(team, port);
 	__team_queue_override_enabled_check(team);
 }
 
+static void team_queue_override_port_change_queue_id(struct team *team,
+						     struct team_port *port,
+						     u16 new_queue_id)
+{
+	if (team_port_enabled(port)) {
+		__team_queue_override_port_del(team, port);
+		port->queue_id = new_queue_id;
+		__team_queue_override_port_add(team, port);
+		__team_queue_override_enabled_check(team);
+	} else {
+		port->queue_id = new_queue_id;
+	}
+}
+
+static void team_queue_override_port_add(struct team *team,
+					 struct team_port *port)
+{
+	__team_queue_override_port_add(team, port);
+	__team_queue_override_enabled_check(team);
+}
+
+static void team_queue_override_port_del(struct team *team,
+					 struct team_port *port)
+{
+	__team_queue_override_port_del(team, port);
+	__team_queue_override_enabled_check(team);
+}
+
 
 /****************
  * Port handling
@@ -819,7 +848,7 @@ static void team_port_enable(struct team *team,
 	hlist_add_head_rcu(&port->hlist,
 			   team_port_index_hash(team, port->index));
 	team_adjust_ops(team);
-	team_queue_override_port_refresh(team, port);
+	team_queue_override_port_add(team, port);
 	if (team->ops.port_enabled)
 		team->ops.port_enabled(team, port);
 }
@@ -848,7 +877,7 @@ static void team_port_disable(struct team *team,
 	hlist_del_rcu(&port->hlist);
 	__reconstruct_port_hlist(team, port->index);
 	port->index = -1;
-	team_queue_override_port_refresh(team, port);
+	team_queue_override_port_del(team, port);
 	__team_adjust_ops(team, team->en_port_count - 1);
 	/*
 	 * Wait until readers see adjusted ops. This ensures that
@@ -1259,9 +1288,12 @@ static int team_priority_option_set(struct team *team,
 				    struct team_gsetter_ctx *ctx)
 {
 	struct team_port *port = ctx->info->port;
+	s32 priority = ctx->data.s32_val;
 
-	port->priority = ctx->data.s32_val;
-	team_queue_override_port_refresh(team, port);
+	if (port->priority == priority)
+		return 0;
+	port->priority = priority;
+	team_queue_override_port_prio_changed(team, port);
 	return 0;
 }
 
@@ -1278,17 +1310,16 @@ static int team_queue_id_option_set(struct team *team,
 				    struct team_gsetter_ctx *ctx)
 {
 	struct team_port *port = ctx->info->port;
+	u16 new_queue_id = ctx->data.u32_val;
 
-	if (port->queue_id == ctx->data.u32_val)
+	if (port->queue_id == new_queue_id)
 		return 0;
-	if (ctx->data.u32_val >= team->dev->real_num_tx_queues)
+	if (new_queue_id >= team->dev->real_num_tx_queues)
 		return -EINVAL;
-	port->queue_id = ctx->data.u32_val;
-	team_queue_override_port_refresh(team, port);
+	team_queue_override_port_change_queue_id(team, port, new_queue_id);
 	return 0;
 }
 
-
 static const struct team_option team_options[] = {
 	{
 		.name = "mode",
-- 
cgit v0.10.2


From d80b35beac78b52faad2359adf6a6b14e2725e51 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Mon, 10 Jun 2013 17:42:24 +0200
Subject: team: use kfree_rcu instead of synchronize_rcu in team_port_dev

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 9cbe09d..488ed4f 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1192,8 +1192,7 @@ static int team_port_del(struct team *team, struct net_device *port_dev)
 
 	team_port_set_orig_dev_addr(port);
 	dev_set_mtu(port_dev, port->orig.mtu);
-	synchronize_rcu();
-	kfree(port);
+	kfree_rcu(port, rcu);
 	netdev_info(dev, "Port device %s removed\n", portname);
 	__team_compute_features(team);
 
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index 4474557..7054595 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -69,6 +69,7 @@ struct team_port {
 	s32 priority; /* lower number ~ higher priority */
 	u16 queue_id;
 	struct list_head qom_list; /* node in queue override mapping list */
+	struct rcu_head	rcu;
 	long mode_priv[0];
 };
 
-- 
cgit v0.10.2


From 735d381fa57c573935d35a24ea271ec99897ac63 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Mon, 10 Jun 2013 17:42:25 +0200
Subject: team: remove synchronize_rcu() called during port disable

Check the unlikely case of team->en_port_count == 0 before modulo
operation.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 488ed4f..e46fef3 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -525,31 +525,26 @@ static void team_set_no_mode(struct team *team)
 	team->mode = &__team_no_mode;
 }
 
-static void __team_adjust_ops(struct team *team, int en_port_count)
+static void team_adjust_ops(struct team *team)
 {
 	/*
 	 * To avoid checks in rx/tx skb paths, ensure here that non-null and
 	 * correct ops are always set.
 	 */
 
-	if (!en_port_count || !team_is_mode_set(team) ||
+	if (!team->en_port_count || !team_is_mode_set(team) ||
 	    !team->mode->ops->transmit)
 		team->ops.transmit = team_dummy_transmit;
 	else
 		team->ops.transmit = team->mode->ops->transmit;
 
-	if (!en_port_count || !team_is_mode_set(team) ||
+	if (!team->en_port_count || !team_is_mode_set(team) ||
 	    !team->mode->ops->receive)
 		team->ops.receive = team_dummy_receive;
 	else
 		team->ops.receive = team->mode->ops->receive;
 }
 
-static void team_adjust_ops(struct team *team)
-{
-	__team_adjust_ops(team, team->en_port_count);
-}
-
 /*
  * We can benefit from the fact that it's ensured no port is present
  * at the time of mode change. Therefore no packets are in fly so there's no
@@ -877,14 +872,9 @@ static void team_port_disable(struct team *team,
 	hlist_del_rcu(&port->hlist);
 	__reconstruct_port_hlist(team, port->index);
 	port->index = -1;
-	team_queue_override_port_del(team, port);
-	__team_adjust_ops(team, team->en_port_count - 1);
-	/*
-	 * Wait until readers see adjusted ops. This ensures that
-	 * readers never see team->en_port_count == 0
-	 */
-	synchronize_rcu();
 	team->en_port_count--;
+	team_queue_override_port_del(team, port);
+	team_adjust_ops(team);
 }
 
 #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \
diff --git a/drivers/net/team/team_mode_loadbalance.c b/drivers/net/team/team_mode_loadbalance.c
index cdc31b5..829a9cd 100644
--- a/drivers/net/team/team_mode_loadbalance.c
+++ b/drivers/net/team/team_mode_loadbalance.c
@@ -112,9 +112,8 @@ static struct team_port *lb_hash_select_tx_port(struct team *team,
 						struct sk_buff *skb,
 						unsigned char hash)
 {
-	int port_index;
+	int port_index = team_num_to_port_index(team, hash);
 
-	port_index = hash % team->en_port_count;
 	return team_get_port_by_index_rcu(team, port_index);
 }
 
diff --git a/drivers/net/team/team_mode_roundrobin.c b/drivers/net/team/team_mode_roundrobin.c
index d268e4d..90311c73 100644
--- a/drivers/net/team/team_mode_roundrobin.c
+++ b/drivers/net/team/team_mode_roundrobin.c
@@ -30,7 +30,8 @@ static bool rr_transmit(struct team *team, struct sk_buff *skb)
 	struct team_port *port;
 	int port_index;
 
-	port_index = rr_priv(team)->sent_packets++ % team->en_port_count;
+	port_index = team_num_to_port_index(team,
+					    rr_priv(team)->sent_packets++);
 	port = team_get_port_by_index_rcu(team, port_index);
 	port = team_get_first_port_txable_rcu(team, port);
 	if (unlikely(!port))
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index 7054595..b662045 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -229,6 +229,16 @@ static inline struct team_port *team_get_port_by_index(struct team *team,
 			return port;
 	return NULL;
 }
+
+static inline int team_num_to_port_index(struct team *team, int num)
+{
+	int en_port_count = ACCESS_ONCE(team->en_port_count);
+
+	if (unlikely(!en_port_count))
+		return 0;
+	return num % en_port_count;
+}
+
 static inline struct team_port *team_get_port_by_index_rcu(struct team *team,
 							   int port_index)
 {
-- 
cgit v0.10.2


From 503b47eafc39cb28db7b694aa0bb9276adccb89c Mon Sep 17 00:00:00 2001
From: Rami Rosen <ramirose@gmail.com>
Date: Mon, 10 Jun 2013 18:58:16 +0300
Subject: ipv4: remove is_data also from ip_options documentation.

commit ef722495c8867aacc1db0675a6737e5cf1e72e07
( [IPV4]: Remove unused ip_options->is_data) removed the unused is_data
member from ip_options struct.

This patch removes is_data also from the documentation of the ip_options struct.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 7235ae7..b21a7f0 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -32,7 +32,6 @@
  *
  * @faddr - Saved first hop address
  * @nexthop - Saved nexthop address in LSRR and SSRR
- * @is_data - Options in __data, rather than skb
  * @is_strictroute - Strict source route
  * @srr_is_hit - Packet destination addr was our one
  * @is_changed - IP checksum more not valid
-- 
cgit v0.10.2


From 6602041b8343fcdb6433cc72ca6cb6c2e189da6d Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 10 Jun 2013 18:03:17 +0100
Subject: sfc: Store port number in private data, not net_device::dev_id

We should not use net_device::dev_id to indicate the port number, as
this affects the way the local part of IPv6 addresses is normally
generated.

This field was intended for use where multiple devices may share a
single assigned MAC address and need to have different IPv6 addresses.
Siena's two ports each have their own MAC addresses.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 39d6bd77..9a2914c 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -784,6 +784,7 @@ struct efx_nic {
 
 	char name[IFNAMSIZ];
 	struct pci_dev *pci_dev;
+	unsigned int port_num;
 	const struct efx_nic_type *type;
 	int legacy_irq;
 	bool legacy_irq_enabled;
@@ -916,7 +917,7 @@ static inline int efx_dev_registered(struct efx_nic *efx)
 
 static inline unsigned int efx_port_num(struct efx_nic *efx)
 {
-	return efx->net_dev->dev_id;
+	return efx->port_num;
 }
 
 /**
diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c
index 5166924..8c91775 100644
--- a/drivers/net/ethernet/sfc/siena.c
+++ b/drivers/net/ethernet/sfc/siena.c
@@ -304,7 +304,7 @@ static int siena_probe_nic(struct efx_nic *efx)
 	}
 
 	efx_reado(efx, &reg, FR_AZ_CS_DEBUG);
-	efx->net_dev->dev_id = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1;
+	efx->port_num = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1;
 
 	efx_mcdi_init(efx);
 
-- 
cgit v0.10.2


From 5eaedf31319d5f80eaaee1eec8dd18c0b452f0d1 Mon Sep 17 00:00:00 2001
From: Claudiu Manoil <claudiu.manoil@freescale.com>
Date: Mon, 10 Jun 2013 20:19:48 +0300
Subject: gianfar: Add backwards compatible Single Queue mode polling

Older Single Queue (SQ_SG_MODE) devices like TSEC (i.e. mpc83xx)
don't feature the frame receive indication bits (RXF) in RSTAT.
For these and for the rest of the SQ_SG_MODE devices, provide the
appropiate polling routine that handles a single pair of Rx/Tx
BD rings, removing the overhead incurred by the multiple queues/
multiple interrupt group devices (veTSEC/ eTSEC2.0 devices).
So this is primarily a fix for the TSEC devices.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 14f0694..8d2db7b 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -128,6 +128,7 @@ static void gfar_set_multi(struct net_device *dev);
 static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr);
 static void gfar_configure_serdes(struct net_device *dev);
 static int gfar_poll(struct napi_struct *napi, int budget);
+static int gfar_poll_sq(struct napi_struct *napi, int budget);
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static void gfar_netpoll(struct net_device *dev);
 #endif
@@ -1038,9 +1039,13 @@ static int gfar_probe(struct platform_device *ofdev)
 	dev->ethtool_ops = &gfar_ethtool_ops;
 
 	/* Register for napi ...We are registering NAPI for each grp */
-	for (i = 0; i < priv->num_grps; i++)
-		netif_napi_add(dev, &priv->gfargrp[i].napi, gfar_poll,
+	if (priv->mode == SQ_SG_MODE)
+		netif_napi_add(dev, &priv->gfargrp[0].napi, gfar_poll_sq,
 			       GFAR_DEV_WEIGHT);
+	else
+		for (i = 0; i < priv->num_grps; i++)
+			netif_napi_add(dev, &priv->gfargrp[i].napi, gfar_poll,
+				       GFAR_DEV_WEIGHT);
 
 	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM) {
 		dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
@@ -2823,6 +2828,48 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit)
 	return howmany;
 }
 
+static int gfar_poll_sq(struct napi_struct *napi, int budget)
+{
+	struct gfar_priv_grp *gfargrp =
+		container_of(napi, struct gfar_priv_grp, napi);
+	struct gfar __iomem *regs = gfargrp->regs;
+	struct gfar_priv_tx_q *tx_queue = gfargrp->priv->tx_queue[0];
+	struct gfar_priv_rx_q *rx_queue = gfargrp->priv->rx_queue[0];
+	int work_done = 0;
+
+	/* Clear IEVENT, so interrupts aren't called again
+	 * because of the packets that have already arrived
+	 */
+	gfar_write(&regs->ievent, IEVENT_RTX_MASK);
+
+	/* run Tx cleanup to completion */
+	if (tx_queue->tx_skbuff[tx_queue->skb_dirtytx])
+		gfar_clean_tx_ring(tx_queue);
+
+	work_done = gfar_clean_rx_ring(rx_queue, budget);
+
+	if (work_done < budget) {
+		napi_complete(napi);
+		/* Clear the halt bit in RSTAT */
+		gfar_write(&regs->rstat, gfargrp->rstat);
+
+		gfar_write(&regs->imask, IMASK_DEFAULT);
+
+		/* If we are coalescing interrupts, update the timer
+		 * Otherwise, clear it
+		 */
+		gfar_write(&regs->txic, 0);
+		if (likely(tx_queue->txcoalescing))
+			gfar_write(&regs->txic, tx_queue->txic);
+
+		gfar_write(&regs->rxic, 0);
+		if (unlikely(rx_queue->rxcoalescing))
+			gfar_write(&regs->rxic, rx_queue->rxic);
+	}
+
+	return work_done;
+}
+
 static int gfar_poll(struct napi_struct *napi, int budget)
 {
 	struct gfar_priv_grp *gfargrp =
-- 
cgit v0.10.2


From 5e3dd157d7e70f0e3cea3f2573ed69fb156a19d5 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Wed, 12 Jun 2013 20:52:10 +0300
Subject: ath10k: mac80211 driver for Qualcomm Atheros 802.11ac CQA98xx devices

Here's a new mac80211 driver for Qualcomm Atheros 802.11ac QCA98xx devices.
A major difference from ath9k is that there's now a firmware and
that's why we had to implement a new driver.

The wiki page for the driver is:

http://wireless.kernel.org/en/users/Drivers/ath10k

The driver has had many authors, they are listed here alphabetically:

Bartosz Markowski <bartosz.markowski@tieto.com>
Janusz Dziedzic <janusz.dziedzic@tieto.com>
Kalle Valo <kvalo@qca.qualcomm.com>
Marek Kwaczynski <marek.kwaczynski@tieto.com>
Marek Puzyniak <marek.puzyniak@tieto.com>
Michal Kazior <michal.kazior@tieto.com>
Sujith Manoharan <c_manoha@qca.qualcomm.com>

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/Kconfig b/drivers/net/wireless/ath/Kconfig
index 2c02b4e..1abf1d4 100644
--- a/drivers/net/wireless/ath/Kconfig
+++ b/drivers/net/wireless/ath/Kconfig
@@ -31,5 +31,6 @@ source "drivers/net/wireless/ath/carl9170/Kconfig"
 source "drivers/net/wireless/ath/ath6kl/Kconfig"
 source "drivers/net/wireless/ath/ar5523/Kconfig"
 source "drivers/net/wireless/ath/wil6210/Kconfig"
+source "drivers/net/wireless/ath/ath10k/Kconfig"
 
 endif
diff --git a/drivers/net/wireless/ath/Makefile b/drivers/net/wireless/ath/Makefile
index 97b964d..fb05cfd 100644
--- a/drivers/net/wireless/ath/Makefile
+++ b/drivers/net/wireless/ath/Makefile
@@ -4,6 +4,7 @@ obj-$(CONFIG_CARL9170)		+= carl9170/
 obj-$(CONFIG_ATH6KL)		+= ath6kl/
 obj-$(CONFIG_AR5523)		+= ar5523/
 obj-$(CONFIG_WIL6210)		+= wil6210/
+obj-$(CONFIG_ATH10K)		+= ath10k/
 
 obj-$(CONFIG_ATH_COMMON)	+= ath.o
 
diff --git a/drivers/net/wireless/ath/ath10k/Kconfig b/drivers/net/wireless/ath/ath10k/Kconfig
new file mode 100644
index 0000000..cde58fe
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/Kconfig
@@ -0,0 +1,39 @@
+config ATH10K
+        tristate "Atheros 802.11ac wireless cards support"
+        depends on MAC80211
+	select ATH_COMMON
+        ---help---
+          This module adds support for wireless adapters based on
+          Atheros IEEE 802.11ac family of chipsets.
+
+          If you choose to build a module, it'll be called ath10k.
+
+config ATH10K_PCI
+	tristate "Atheros ath10k PCI support"
+	depends on ATH10K && PCI
+	---help---
+	  This module adds support for PCIE bus
+
+config ATH10K_DEBUG
+	bool "Atheros ath10k debugging"
+	depends on ATH10K
+	---help---
+	  Enables debug support
+
+	  If unsure, say Y to make it easier to debug problems.
+
+config ATH10K_DEBUGFS
+	bool "Atheros ath10k debugfs support"
+	depends on ATH10K
+	---help---
+	  Enabled debugfs support
+
+	  If unsure, say Y to make it easier to debug problems.
+
+config ATH10K_TRACING
+	bool "Atheros ath10k tracing support"
+	depends on ATH10K
+	depends on EVENT_TRACING
+	---help---
+	  Select this to ath10k use tracing infrastructure.
+
diff --git a/drivers/net/wireless/ath/ath10k/Makefile b/drivers/net/wireless/ath/ath10k/Makefile
new file mode 100644
index 0000000..a4179f4
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/Makefile
@@ -0,0 +1,20 @@
+obj-$(CONFIG_ATH10K) += ath10k_core.o
+ath10k_core-y += mac.o \
+		 debug.o \
+		 core.o \
+		 htc.o \
+		 htt.o \
+		 htt_rx.o \
+		 htt_tx.o \
+		 txrx.o \
+		 wmi.o \
+		 bmi.o
+
+ath10k_core-$(CONFIG_ATH10K_TRACING) += trace.o
+
+obj-$(CONFIG_ATH10K_PCI) += ath10k_pci.o
+ath10k_pci-y += pci.o \
+		ce.o
+
+# for tracing framework to find trace.h
+CFLAGS_trace.o := -I$(src)
diff --git a/drivers/net/wireless/ath/ath10k/bmi.c b/drivers/net/wireless/ath/ath10k/bmi.c
new file mode 100644
index 0000000..1a2ef51
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/bmi.c
@@ -0,0 +1,295 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "bmi.h"
+#include "hif.h"
+#include "debug.h"
+#include "htc.h"
+
+int ath10k_bmi_done(struct ath10k *ar)
+{
+	struct bmi_cmd cmd;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.done);
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_dbg(ATH10K_DBG_CORE, "%s skipped\n", __func__);
+		return 0;
+	}
+
+	ar->bmi.done_sent = true;
+	cmd.id = __cpu_to_le32(BMI_DONE);
+
+	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL);
+	if (ret) {
+		ath10k_warn("unable to write to the device: %d\n", ret);
+		return ret;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE, "BMI done\n");
+	return 0;
+}
+
+int ath10k_bmi_get_target_info(struct ath10k *ar,
+			       struct bmi_target_info *target_info)
+{
+	struct bmi_cmd cmd;
+	union bmi_resp resp;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.get_target_info);
+	u32 resplen = sizeof(resp.get_target_info);
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("BMI Get Target Info Command disallowed\n");
+		return -EBUSY;
+	}
+
+	cmd.id = __cpu_to_le32(BMI_GET_TARGET_INFO);
+
+	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen);
+	if (ret) {
+		ath10k_warn("unable to get target info from device\n");
+		return ret;
+	}
+
+	if (resplen < sizeof(resp.get_target_info)) {
+		ath10k_warn("invalid get_target_info response length (%d)\n",
+			    resplen);
+		return -EIO;
+	}
+
+	target_info->version = __le32_to_cpu(resp.get_target_info.version);
+	target_info->type    = __le32_to_cpu(resp.get_target_info.type);
+	return 0;
+}
+
+int ath10k_bmi_read_memory(struct ath10k *ar,
+			   u32 address, void *buffer, u32 length)
+{
+	struct bmi_cmd cmd;
+	union bmi_resp resp;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.read_mem);
+	u32 rxlen;
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE,
+		   "%s: (device: 0x%p, address: 0x%x, length: %d)\n",
+		   __func__, ar, address, length);
+
+	while (length) {
+		rxlen = min_t(u32, length, BMI_MAX_DATA_SIZE);
+
+		cmd.id            = __cpu_to_le32(BMI_READ_MEMORY);
+		cmd.read_mem.addr = __cpu_to_le32(address);
+		cmd.read_mem.len  = __cpu_to_le32(rxlen);
+
+		ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen,
+						  &resp, &rxlen);
+		if (ret) {
+			ath10k_warn("unable to read from the device\n");
+			return ret;
+		}
+
+		memcpy(buffer, resp.read_mem.payload, rxlen);
+		address += rxlen;
+		buffer  += rxlen;
+		length  -= rxlen;
+	}
+
+	return 0;
+}
+
+int ath10k_bmi_write_memory(struct ath10k *ar,
+			    u32 address, const void *buffer, u32 length)
+{
+	struct bmi_cmd cmd;
+	u32 hdrlen = sizeof(cmd.id) + sizeof(cmd.write_mem);
+	u32 txlen;
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE,
+		   "%s: (device: 0x%p, address: 0x%x, length: %d)\n",
+		   __func__, ar, address, length);
+
+	while (length) {
+		txlen = min(length, BMI_MAX_DATA_SIZE - hdrlen);
+
+		/* copy before roundup to avoid reading beyond buffer*/
+		memcpy(cmd.write_mem.payload, buffer, txlen);
+		txlen = roundup(txlen, 4);
+
+		cmd.id             = __cpu_to_le32(BMI_WRITE_MEMORY);
+		cmd.write_mem.addr = __cpu_to_le32(address);
+		cmd.write_mem.len  = __cpu_to_le32(txlen);
+
+		ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, hdrlen + txlen,
+						  NULL, NULL);
+		if (ret) {
+			ath10k_warn("unable to write to the device\n");
+			return ret;
+		}
+
+		/* fixup roundup() so `length` zeroes out for last chunk */
+		txlen = min(txlen, length);
+
+		address += txlen;
+		buffer  += txlen;
+		length  -= txlen;
+	}
+
+	return 0;
+}
+
+int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param)
+{
+	struct bmi_cmd cmd;
+	union bmi_resp resp;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.execute);
+	u32 resplen = sizeof(resp.execute);
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE,
+		   "%s: (device: 0x%p, address: 0x%x, param: %d)\n",
+		   __func__, ar, address, *param);
+
+	cmd.id            = __cpu_to_le32(BMI_EXECUTE);
+	cmd.execute.addr  = __cpu_to_le32(address);
+	cmd.execute.param = __cpu_to_le32(*param);
+
+	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen);
+	if (ret) {
+		ath10k_warn("unable to read from the device\n");
+		return ret;
+	}
+
+	if (resplen < sizeof(resp.execute)) {
+		ath10k_warn("invalid execute response length (%d)\n",
+			    resplen);
+		return ret;
+	}
+
+	*param = __le32_to_cpu(resp.execute.result);
+	return 0;
+}
+
+int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length)
+{
+	struct bmi_cmd cmd;
+	u32 hdrlen = sizeof(cmd.id) + sizeof(cmd.lz_data);
+	u32 txlen;
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	while (length) {
+		txlen = min(length, BMI_MAX_DATA_SIZE - hdrlen);
+
+		WARN_ON_ONCE(txlen & 3);
+
+		cmd.id          = __cpu_to_le32(BMI_LZ_DATA);
+		cmd.lz_data.len = __cpu_to_le32(txlen);
+		memcpy(cmd.lz_data.payload, buffer, txlen);
+
+		ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, hdrlen + txlen,
+						  NULL, NULL);
+		if (ret) {
+			ath10k_warn("unable to write to the device\n");
+			return ret;
+		}
+
+		buffer += txlen;
+		length -= txlen;
+	}
+
+	return 0;
+}
+
+int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address)
+{
+	struct bmi_cmd cmd;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.lz_start);
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	cmd.id            = __cpu_to_le32(BMI_LZ_STREAM_START);
+	cmd.lz_start.addr = __cpu_to_le32(address);
+
+	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL);
+	if (ret) {
+		ath10k_warn("unable to Start LZ Stream to the device\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath10k_bmi_fast_download(struct ath10k *ar,
+			     u32 address, const void *buffer, u32 length)
+{
+	u8 trailer[4] = {};
+	u32 head_len = rounddown(length, 4);
+	u32 trailer_len = length - head_len;
+	int ret;
+
+	ret = ath10k_bmi_lz_stream_start(ar, address);
+	if (ret)
+		return ret;
+
+	/* copy the last word into a zero padded buffer */
+	if (trailer_len > 0)
+		memcpy(trailer, buffer + head_len, trailer_len);
+
+	ret = ath10k_bmi_lz_data(ar, buffer, head_len);
+	if (ret)
+		return ret;
+
+	if (trailer_len > 0)
+		ret = ath10k_bmi_lz_data(ar, trailer, 4);
+
+	if (ret != 0)
+		return ret;
+
+	/*
+	 * Close compressed stream and open a new (fake) one.
+	 * This serves mainly to flush Target caches.
+	 */
+	ret = ath10k_bmi_lz_stream_start(ar, 0x00);
+
+	return ret;
+}
diff --git a/drivers/net/wireless/ath/ath10k/bmi.h b/drivers/net/wireless/ath/ath10k/bmi.h
new file mode 100644
index 0000000..32c56aa
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/bmi.h
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _BMI_H_
+#define _BMI_H_
+
+#include "core.h"
+
+/*
+ * Bootloader Messaging Interface (BMI)
+ *
+ * BMI is a very simple messaging interface used during initialization
+ * to read memory, write memory, execute code, and to define an
+ * application entry PC.
+ *
+ * It is used to download an application to QCA988x, to provide
+ * patches to code that is already resident on QCA988x, and generally
+ * to examine and modify state.  The Host has an opportunity to use
+ * BMI only once during bootup.  Once the Host issues a BMI_DONE
+ * command, this opportunity ends.
+ *
+ * The Host writes BMI requests to mailbox0, and reads BMI responses
+ * from mailbox0.   BMI requests all begin with a command
+ * (see below for specific commands), and are followed by
+ * command-specific data.
+ *
+ * Flow control:
+ * The Host can only issue a command once the Target gives it a
+ * "BMI Command Credit", using AR8K Counter #4.  As soon as the
+ * Target has completed a command, it issues another BMI Command
+ * Credit (so the Host can issue the next command).
+ *
+ * BMI handles all required Target-side cache flushing.
+ */
+
+/* Maximum data size used for BMI transfers */
+#define BMI_MAX_DATA_SIZE	256
+
+/* len = cmd + addr + length */
+#define BMI_MAX_CMDBUF_SIZE (BMI_MAX_DATA_SIZE + \
+			sizeof(u32) + \
+			sizeof(u32) + \
+			sizeof(u32))
+
+/* BMI Commands */
+
+enum bmi_cmd_id {
+	BMI_NO_COMMAND          = 0,
+	BMI_DONE                = 1,
+	BMI_READ_MEMORY         = 2,
+	BMI_WRITE_MEMORY        = 3,
+	BMI_EXECUTE             = 4,
+	BMI_SET_APP_START       = 5,
+	BMI_READ_SOC_REGISTER   = 6,
+	BMI_READ_SOC_WORD       = 6,
+	BMI_WRITE_SOC_REGISTER  = 7,
+	BMI_WRITE_SOC_WORD      = 7,
+	BMI_GET_TARGET_ID       = 8,
+	BMI_GET_TARGET_INFO     = 8,
+	BMI_ROMPATCH_INSTALL    = 9,
+	BMI_ROMPATCH_UNINSTALL  = 10,
+	BMI_ROMPATCH_ACTIVATE   = 11,
+	BMI_ROMPATCH_DEACTIVATE = 12,
+	BMI_LZ_STREAM_START     = 13, /* should be followed by LZ_DATA */
+	BMI_LZ_DATA             = 14,
+	BMI_NVRAM_PROCESS       = 15,
+};
+
+#define BMI_NVRAM_SEG_NAME_SZ 16
+
+struct bmi_cmd {
+	__le32 id; /* enum bmi_cmd_id */
+	union {
+		struct {
+		} done;
+		struct {
+			__le32 addr;
+			__le32 len;
+		} read_mem;
+		struct {
+			__le32 addr;
+			__le32 len;
+			u8 payload[0];
+		} write_mem;
+		struct {
+			__le32 addr;
+			__le32 param;
+		} execute;
+		struct {
+			__le32 addr;
+		} set_app_start;
+		struct {
+			__le32 addr;
+		} read_soc_reg;
+		struct {
+			__le32 addr;
+			__le32 value;
+		} write_soc_reg;
+		struct {
+		} get_target_info;
+		struct {
+			__le32 rom_addr;
+			__le32 ram_addr; /* or value */
+			__le32 size;
+			__le32 activate; /* 0=install, but dont activate */
+		} rompatch_install;
+		struct {
+			__le32 patch_id;
+		} rompatch_uninstall;
+		struct {
+			__le32 count;
+			__le32 patch_ids[0]; /* length of @count */
+		} rompatch_activate;
+		struct {
+			__le32 count;
+			__le32 patch_ids[0]; /* length of @count */
+		} rompatch_deactivate;
+		struct {
+			__le32 addr;
+		} lz_start;
+		struct {
+			__le32 len; /* max BMI_MAX_DATA_SIZE */
+			u8 payload[0]; /* length of @len */
+		} lz_data;
+		struct {
+			u8 name[BMI_NVRAM_SEG_NAME_SZ];
+		} nvram_process;
+		u8 payload[BMI_MAX_CMDBUF_SIZE];
+	};
+} __packed;
+
+union bmi_resp {
+	struct {
+		u8 payload[0];
+	} read_mem;
+	struct {
+		__le32 result;
+	} execute;
+	struct {
+		__le32 value;
+	} read_soc_reg;
+	struct {
+		__le32 len;
+		__le32 version;
+		__le32 type;
+	} get_target_info;
+	struct {
+		__le32 patch_id;
+	} rompatch_install;
+	struct {
+		__le32 patch_id;
+	} rompatch_uninstall;
+	struct {
+		/* 0 = nothing executed
+		 * otherwise = NVRAM segment return value */
+		__le32 result;
+	} nvram_process;
+	u8 payload[BMI_MAX_CMDBUF_SIZE];
+} __packed;
+
+struct bmi_target_info {
+	u32 version;
+	u32 type;
+};
+
+
+/* in msec */
+#define BMI_COMMUNICATION_TIMEOUT_HZ (1*HZ)
+
+#define BMI_CE_NUM_TO_TARG 0
+#define BMI_CE_NUM_TO_HOST 1
+
+int ath10k_bmi_done(struct ath10k *ar);
+int ath10k_bmi_get_target_info(struct ath10k *ar,
+			       struct bmi_target_info *target_info);
+int ath10k_bmi_read_memory(struct ath10k *ar, u32 address,
+			   void *buffer, u32 length);
+int ath10k_bmi_write_memory(struct ath10k *ar, u32 address,
+			    const void *buffer, u32 length);
+
+#define ath10k_bmi_read32(ar, item, val)				\
+	({								\
+		int ret;						\
+		u32 addr;						\
+		__le32 tmp;						\
+									\
+		addr = host_interest_item_address(HI_ITEM(item));	\
+		ret = ath10k_bmi_read_memory(ar, addr, (u8 *)&tmp, 4); \
+		*val = __le32_to_cpu(tmp);				\
+		ret;							\
+	 })
+
+#define ath10k_bmi_write32(ar, item, val)				\
+	({								\
+		int ret;						\
+		u32 address;						\
+		__le32 v = __cpu_to_le32(val);				\
+									\
+		address = host_interest_item_address(HI_ITEM(item));	\
+		ret = ath10k_bmi_write_memory(ar, address,		\
+					      (u8 *)&v, sizeof(v));	\
+		ret;							\
+	})
+
+int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param);
+int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address);
+int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length);
+int ath10k_bmi_fast_download(struct ath10k *ar, u32 address,
+			     const void *buffer, u32 length);
+#endif /* _BMI_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
new file mode 100644
index 0000000..61a8ac7
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -0,0 +1,1189 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "hif.h"
+#include "pci.h"
+#include "ce.h"
+#include "debug.h"
+
+/*
+ * Support for Copy Engine hardware, which is mainly used for
+ * communication between Host and Target over a PCIe interconnect.
+ */
+
+/*
+ * A single CopyEngine (CE) comprises two "rings":
+ *   a source ring
+ *   a destination ring
+ *
+ * Each ring consists of a number of descriptors which specify
+ * an address, length, and meta-data.
+ *
+ * Typically, one side of the PCIe interconnect (Host or Target)
+ * controls one ring and the other side controls the other ring.
+ * The source side chooses when to initiate a transfer and it
+ * chooses what to send (buffer address, length). The destination
+ * side keeps a supply of "anonymous receive buffers" available and
+ * it handles incoming data as it arrives (when the destination
+ * recieves an interrupt).
+ *
+ * The sender may send a simple buffer (address/length) or it may
+ * send a small list of buffers.  When a small list is sent, hardware
+ * "gathers" these and they end up in a single destination buffer
+ * with a single interrupt.
+ *
+ * There are several "contexts" managed by this layer -- more, it
+ * may seem -- than should be needed. These are provided mainly for
+ * maximum flexibility and especially to facilitate a simpler HIF
+ * implementation. There are per-CopyEngine recv, send, and watermark
+ * contexts. These are supplied by the caller when a recv, send,
+ * or watermark handler is established and they are echoed back to
+ * the caller when the respective callbacks are invoked. There is
+ * also a per-transfer context supplied by the caller when a buffer
+ * (or sendlist) is sent and when a buffer is enqueued for recv.
+ * These per-transfer contexts are echoed back to the caller when
+ * the buffer is sent/received.
+ */
+
+static inline void ath10k_ce_dest_ring_write_index_set(struct ath10k *ar,
+						       u32 ce_ctrl_addr,
+						       unsigned int n)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + DST_WR_INDEX_ADDRESS, n);
+}
+
+static inline u32 ath10k_ce_dest_ring_write_index_get(struct ath10k *ar,
+						      u32 ce_ctrl_addr)
+{
+	return ath10k_pci_read32(ar, ce_ctrl_addr + DST_WR_INDEX_ADDRESS);
+}
+
+static inline void ath10k_ce_src_ring_write_index_set(struct ath10k *ar,
+						      u32 ce_ctrl_addr,
+						      unsigned int n)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	void __iomem *indicator_addr;
+
+	if (!test_bit(ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND, ar_pci->features)) {
+		ath10k_pci_write32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS, n);
+		return;
+	}
+
+	/* workaround for QCA988x_1.0 HW CE */
+	indicator_addr = ar_pci->mem + ce_ctrl_addr + DST_WATERMARK_ADDRESS;
+
+	if (ce_ctrl_addr == ath10k_ce_base_address(CDC_WAR_DATA_CE)) {
+		iowrite32((CDC_WAR_MAGIC_STR | n), indicator_addr);
+	} else {
+		unsigned long irq_flags;
+		local_irq_save(irq_flags);
+		iowrite32(1, indicator_addr);
+
+		/*
+		 * PCIE write waits for ACK in IPQ8K, there is no
+		 * need to read back value.
+		 */
+		(void)ioread32(indicator_addr);
+		(void)ioread32(indicator_addr); /* conservative */
+
+		ath10k_pci_write32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS, n);
+
+		iowrite32(0, indicator_addr);
+		local_irq_restore(irq_flags);
+	}
+}
+
+static inline u32 ath10k_ce_src_ring_write_index_get(struct ath10k *ar,
+						     u32 ce_ctrl_addr)
+{
+	return ath10k_pci_read32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS);
+}
+
+static inline u32 ath10k_ce_src_ring_read_index_get(struct ath10k *ar,
+						    u32 ce_ctrl_addr)
+{
+	return ath10k_pci_read32(ar, ce_ctrl_addr + CURRENT_SRRI_ADDRESS);
+}
+
+static inline void ath10k_ce_src_ring_base_addr_set(struct ath10k *ar,
+						    u32 ce_ctrl_addr,
+						    unsigned int addr)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + SR_BA_ADDRESS, addr);
+}
+
+static inline void ath10k_ce_src_ring_size_set(struct ath10k *ar,
+					       u32 ce_ctrl_addr,
+					       unsigned int n)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + SR_SIZE_ADDRESS, n);
+}
+
+static inline void ath10k_ce_src_ring_dmax_set(struct ath10k *ar,
+					       u32 ce_ctrl_addr,
+					       unsigned int n)
+{
+	u32 ctrl1_addr = ath10k_pci_read32((ar),
+					   (ce_ctrl_addr) + CE_CTRL1_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS,
+			   (ctrl1_addr &  ~CE_CTRL1_DMAX_LENGTH_MASK) |
+			   CE_CTRL1_DMAX_LENGTH_SET(n));
+}
+
+static inline void ath10k_ce_src_ring_byte_swap_set(struct ath10k *ar,
+						    u32 ce_ctrl_addr,
+						    unsigned int n)
+{
+	u32 ctrl1_addr = ath10k_pci_read32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS,
+			   (ctrl1_addr & ~CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MASK) |
+			   CE_CTRL1_SRC_RING_BYTE_SWAP_EN_SET(n));
+}
+
+static inline void ath10k_ce_dest_ring_byte_swap_set(struct ath10k *ar,
+						     u32 ce_ctrl_addr,
+						     unsigned int n)
+{
+	u32 ctrl1_addr = ath10k_pci_read32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS,
+			   (ctrl1_addr & ~CE_CTRL1_DST_RING_BYTE_SWAP_EN_MASK) |
+			   CE_CTRL1_DST_RING_BYTE_SWAP_EN_SET(n));
+}
+
+static inline u32 ath10k_ce_dest_ring_read_index_get(struct ath10k *ar,
+						     u32 ce_ctrl_addr)
+{
+	return ath10k_pci_read32(ar, ce_ctrl_addr + CURRENT_DRRI_ADDRESS);
+}
+
+static inline void ath10k_ce_dest_ring_base_addr_set(struct ath10k *ar,
+						     u32 ce_ctrl_addr,
+						     u32 addr)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + DR_BA_ADDRESS, addr);
+}
+
+static inline void ath10k_ce_dest_ring_size_set(struct ath10k *ar,
+						u32 ce_ctrl_addr,
+						unsigned int n)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + DR_SIZE_ADDRESS, n);
+}
+
+static inline void ath10k_ce_src_ring_highmark_set(struct ath10k *ar,
+						   u32 ce_ctrl_addr,
+						   unsigned int n)
+{
+	u32 addr = ath10k_pci_read32(ar, ce_ctrl_addr + SRC_WATERMARK_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + SRC_WATERMARK_ADDRESS,
+			   (addr & ~SRC_WATERMARK_HIGH_MASK) |
+			   SRC_WATERMARK_HIGH_SET(n));
+}
+
+static inline void ath10k_ce_src_ring_lowmark_set(struct ath10k *ar,
+						  u32 ce_ctrl_addr,
+						  unsigned int n)
+{
+	u32 addr = ath10k_pci_read32(ar, ce_ctrl_addr + SRC_WATERMARK_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + SRC_WATERMARK_ADDRESS,
+			   (addr & ~SRC_WATERMARK_LOW_MASK) |
+			   SRC_WATERMARK_LOW_SET(n));
+}
+
+static inline void ath10k_ce_dest_ring_highmark_set(struct ath10k *ar,
+						    u32 ce_ctrl_addr,
+						    unsigned int n)
+{
+	u32 addr = ath10k_pci_read32(ar, ce_ctrl_addr + DST_WATERMARK_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + DST_WATERMARK_ADDRESS,
+			   (addr & ~DST_WATERMARK_HIGH_MASK) |
+			   DST_WATERMARK_HIGH_SET(n));
+}
+
+static inline void ath10k_ce_dest_ring_lowmark_set(struct ath10k *ar,
+						   u32 ce_ctrl_addr,
+						   unsigned int n)
+{
+	u32 addr = ath10k_pci_read32(ar, ce_ctrl_addr + DST_WATERMARK_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + DST_WATERMARK_ADDRESS,
+			   (addr & ~DST_WATERMARK_LOW_MASK) |
+			   DST_WATERMARK_LOW_SET(n));
+}
+
+static inline void ath10k_ce_copy_complete_inter_enable(struct ath10k *ar,
+							u32 ce_ctrl_addr)
+{
+	u32 host_ie_addr = ath10k_pci_read32(ar,
+					     ce_ctrl_addr + HOST_IE_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + HOST_IE_ADDRESS,
+			   host_ie_addr | HOST_IE_COPY_COMPLETE_MASK);
+}
+
+static inline void ath10k_ce_copy_complete_intr_disable(struct ath10k *ar,
+							u32 ce_ctrl_addr)
+{
+	u32 host_ie_addr = ath10k_pci_read32(ar,
+					     ce_ctrl_addr + HOST_IE_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + HOST_IE_ADDRESS,
+			   host_ie_addr & ~HOST_IE_COPY_COMPLETE_MASK);
+}
+
+static inline void ath10k_ce_watermark_intr_disable(struct ath10k *ar,
+						    u32 ce_ctrl_addr)
+{
+	u32 host_ie_addr = ath10k_pci_read32(ar,
+					     ce_ctrl_addr + HOST_IE_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + HOST_IE_ADDRESS,
+			   host_ie_addr & ~CE_WATERMARK_MASK);
+}
+
+static inline void ath10k_ce_error_intr_enable(struct ath10k *ar,
+					       u32 ce_ctrl_addr)
+{
+	u32 misc_ie_addr = ath10k_pci_read32(ar,
+					     ce_ctrl_addr + MISC_IE_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + MISC_IE_ADDRESS,
+			   misc_ie_addr | CE_ERROR_MASK);
+}
+
+static inline void ath10k_ce_engine_int_status_clear(struct ath10k *ar,
+						     u32 ce_ctrl_addr,
+						     unsigned int mask)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + HOST_IS_ADDRESS, mask);
+}
+
+
+/*
+ * Guts of ath10k_ce_send, used by both ath10k_ce_send and
+ * ath10k_ce_sendlist_send.
+ * The caller takes responsibility for any needed locking.
+ */
+static int ath10k_ce_send_nolock(struct ce_state *ce_state,
+				 void *per_transfer_context,
+				 u32 buffer,
+				 unsigned int nbytes,
+				 unsigned int transfer_id,
+				 unsigned int flags)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ce_ring_state *src_ring = ce_state->src_ring;
+	struct ce_desc *desc, *sdesc;
+	unsigned int nentries_mask = src_ring->nentries_mask;
+	unsigned int sw_index = src_ring->sw_index;
+	unsigned int write_index = src_ring->write_index;
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	u32 desc_flags = 0;
+	int ret = 0;
+
+	if (nbytes > ce_state->src_sz_max)
+		ath10k_warn("%s: send more we can (nbytes: %d, max: %d)\n",
+			    __func__, nbytes, ce_state->src_sz_max);
+
+	ath10k_pci_wake(ar);
+
+	if (unlikely(CE_RING_DELTA(nentries_mask,
+				   write_index, sw_index - 1) <= 0)) {
+		ret = -EIO;
+		goto exit;
+	}
+
+	desc = CE_SRC_RING_TO_DESC(src_ring->base_addr_owner_space,
+				   write_index);
+	sdesc = CE_SRC_RING_TO_DESC(src_ring->shadow_base, write_index);
+
+	desc_flags |= SM(transfer_id, CE_DESC_FLAGS_META_DATA);
+
+	if (flags & CE_SEND_FLAG_GATHER)
+		desc_flags |= CE_DESC_FLAGS_GATHER;
+	if (flags & CE_SEND_FLAG_BYTE_SWAP)
+		desc_flags |= CE_DESC_FLAGS_BYTE_SWAP;
+
+	sdesc->addr   = __cpu_to_le32(buffer);
+	sdesc->nbytes = __cpu_to_le16(nbytes);
+	sdesc->flags  = __cpu_to_le16(desc_flags);
+
+	*desc = *sdesc;
+
+	src_ring->per_transfer_context[write_index] = per_transfer_context;
+
+	/* Update Source Ring Write Index */
+	write_index = CE_RING_IDX_INCR(nentries_mask, write_index);
+
+	/* WORKAROUND */
+	if (!(flags & CE_SEND_FLAG_GATHER))
+		ath10k_ce_src_ring_write_index_set(ar, ctrl_addr, write_index);
+
+	src_ring->write_index = write_index;
+exit:
+	ath10k_pci_sleep(ar);
+	return ret;
+}
+
+int ath10k_ce_send(struct ce_state *ce_state,
+		   void *per_transfer_context,
+		   u32 buffer,
+		   unsigned int nbytes,
+		   unsigned int transfer_id,
+		   unsigned int flags)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ret = ath10k_ce_send_nolock(ce_state, per_transfer_context,
+				    buffer, nbytes, transfer_id, flags);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist, u32 buffer,
+				unsigned int nbytes, u32 flags)
+{
+	unsigned int num_items = sendlist->num_items;
+	struct ce_sendlist_item *item;
+
+	item = &sendlist->item[num_items];
+	item->data = buffer;
+	item->u.nbytes = nbytes;
+	item->flags = flags;
+	sendlist->num_items++;
+}
+
+int ath10k_ce_sendlist_send(struct ce_state *ce_state,
+			    void *per_transfer_context,
+			    struct ce_sendlist *sendlist,
+			    unsigned int transfer_id)
+{
+	struct ce_ring_state *src_ring = ce_state->src_ring;
+	struct ce_sendlist_item *item;
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	unsigned int nentries_mask = src_ring->nentries_mask;
+	unsigned int num_items = sendlist->num_items;
+	unsigned int sw_index;
+	unsigned int write_index;
+	int i, delta, ret = -ENOMEM;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	sw_index = src_ring->sw_index;
+	write_index = src_ring->write_index;
+
+	delta = CE_RING_DELTA(nentries_mask, write_index, sw_index - 1);
+
+	if (delta >= num_items) {
+		/*
+		 * Handle all but the last item uniformly.
+		 */
+		for (i = 0; i < num_items - 1; i++) {
+			item = &sendlist->item[i];
+			ret = ath10k_ce_send_nolock(ce_state,
+						    CE_SENDLIST_ITEM_CTXT,
+						    (u32) item->data,
+						    item->u.nbytes, transfer_id,
+						    item->flags |
+						    CE_SEND_FLAG_GATHER);
+			if (ret)
+				ath10k_warn("CE send failed for item: %d\n", i);
+		}
+		/*
+		 * Provide valid context pointer for final item.
+		 */
+		item = &sendlist->item[i];
+		ret = ath10k_ce_send_nolock(ce_state, per_transfer_context,
+					    (u32) item->data, item->u.nbytes,
+					    transfer_id, item->flags);
+		if (ret)
+			ath10k_warn("CE send failed for last item: %d\n", i);
+	}
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
+			       void *per_recv_context,
+			       u32 buffer)
+{
+	struct ce_ring_state *dest_ring = ce_state->dest_ring;
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	unsigned int nentries_mask = dest_ring->nentries_mask;
+	unsigned int write_index;
+	unsigned int sw_index;
+	int ret;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	write_index = dest_ring->write_index;
+	sw_index = dest_ring->sw_index;
+
+	ath10k_pci_wake(ar);
+
+	if (CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) > 0) {
+		struct ce_desc *base = dest_ring->base_addr_owner_space;
+		struct ce_desc *desc = CE_DEST_RING_TO_DESC(base, write_index);
+
+		/* Update destination descriptor */
+		desc->addr    = __cpu_to_le32(buffer);
+		desc->nbytes = 0;
+
+		dest_ring->per_transfer_context[write_index] =
+							per_recv_context;
+
+		/* Update Destination Ring Write Index */
+		write_index = CE_RING_IDX_INCR(nentries_mask, write_index);
+		ath10k_ce_dest_ring_write_index_set(ar, ctrl_addr, write_index);
+		dest_ring->write_index = write_index;
+		ret = 0;
+	} else {
+		ret = -EIO;
+	}
+	ath10k_pci_sleep(ar);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+/*
+ * Guts of ath10k_ce_completed_recv_next.
+ * The caller takes responsibility for any necessary locking.
+ */
+static int ath10k_ce_completed_recv_next_nolock(struct ce_state *ce_state,
+						void **per_transfer_contextp,
+						u32 *bufferp,
+						unsigned int *nbytesp,
+						unsigned int *transfer_idp,
+						unsigned int *flagsp)
+{
+	struct ce_ring_state *dest_ring = ce_state->dest_ring;
+	unsigned int nentries_mask = dest_ring->nentries_mask;
+	unsigned int sw_index = dest_ring->sw_index;
+
+	struct ce_desc *base = dest_ring->base_addr_owner_space;
+	struct ce_desc *desc = CE_DEST_RING_TO_DESC(base, sw_index);
+	struct ce_desc sdesc;
+	u16 nbytes;
+
+	/* Copy in one go for performance reasons */
+	sdesc = *desc;
+
+	nbytes = __le16_to_cpu(sdesc.nbytes);
+	if (nbytes == 0) {
+		/*
+		 * This closes a relatively unusual race where the Host
+		 * sees the updated DRRI before the update to the
+		 * corresponding descriptor has completed. We treat this
+		 * as a descriptor that is not yet done.
+		 */
+		return -EIO;
+	}
+
+	desc->nbytes = 0;
+
+	/* Return data from completed destination descriptor */
+	*bufferp = __le32_to_cpu(sdesc.addr);
+	*nbytesp = nbytes;
+	*transfer_idp = MS(__le16_to_cpu(sdesc.flags), CE_DESC_FLAGS_META_DATA);
+
+	if (__le16_to_cpu(sdesc.flags) & CE_DESC_FLAGS_BYTE_SWAP)
+		*flagsp = CE_RECV_FLAG_SWAPPED;
+	else
+		*flagsp = 0;
+
+	if (per_transfer_contextp)
+		*per_transfer_contextp =
+			dest_ring->per_transfer_context[sw_index];
+
+	/* sanity */
+	dest_ring->per_transfer_context[sw_index] = NULL;
+
+	/* Update sw_index */
+	sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+	dest_ring->sw_index = sw_index;
+
+	return 0;
+}
+
+int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
+				  void **per_transfer_contextp,
+				  u32 *bufferp,
+				  unsigned int *nbytesp,
+				  unsigned int *transfer_idp,
+				  unsigned int *flagsp)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ret = ath10k_ce_completed_recv_next_nolock(ce_state,
+						   per_transfer_contextp,
+						   bufferp, nbytesp,
+						   transfer_idp, flagsp);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
+			       void **per_transfer_contextp,
+			       u32 *bufferp)
+{
+	struct ce_ring_state *dest_ring;
+	unsigned int nentries_mask;
+	unsigned int sw_index;
+	unsigned int write_index;
+	int ret;
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+
+	dest_ring = ce_state->dest_ring;
+
+	if (!dest_ring)
+		return -EIO;
+
+	ar = ce_state->ar;
+	ar_pci = ath10k_pci_priv(ar);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	nentries_mask = dest_ring->nentries_mask;
+	sw_index = dest_ring->sw_index;
+	write_index = dest_ring->write_index;
+	if (write_index != sw_index) {
+		struct ce_desc *base = dest_ring->base_addr_owner_space;
+		struct ce_desc *desc = CE_DEST_RING_TO_DESC(base, sw_index);
+
+		/* Return data from completed destination descriptor */
+		*bufferp = __le32_to_cpu(desc->addr);
+
+		if (per_transfer_contextp)
+			*per_transfer_contextp =
+				dest_ring->per_transfer_context[sw_index];
+
+		/* sanity */
+		dest_ring->per_transfer_context[sw_index] = NULL;
+
+		/* Update sw_index */
+		sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+		dest_ring->sw_index = sw_index;
+		ret = 0;
+	} else {
+		ret = -EIO;
+	}
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+/*
+ * Guts of ath10k_ce_completed_send_next.
+ * The caller takes responsibility for any necessary locking.
+ */
+static int ath10k_ce_completed_send_next_nolock(struct ce_state *ce_state,
+						void **per_transfer_contextp,
+						u32 *bufferp,
+						unsigned int *nbytesp,
+						unsigned int *transfer_idp)
+{
+	struct ce_ring_state *src_ring = ce_state->src_ring;
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	struct ath10k *ar = ce_state->ar;
+	unsigned int nentries_mask = src_ring->nentries_mask;
+	unsigned int sw_index = src_ring->sw_index;
+	unsigned int read_index;
+	int ret = -EIO;
+
+	if (src_ring->hw_index == sw_index) {
+		/*
+		 * The SW completion index has caught up with the cached
+		 * version of the HW completion index.
+		 * Update the cached HW completion index to see whether
+		 * the SW has really caught up to the HW, or if the cached
+		 * value of the HW index has become stale.
+		 */
+		ath10k_pci_wake(ar);
+		src_ring->hw_index =
+			ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
+		ath10k_pci_sleep(ar);
+	}
+	read_index = src_ring->hw_index;
+
+	if ((read_index != sw_index) && (read_index != 0xffffffff)) {
+		struct ce_desc *sbase = src_ring->shadow_base;
+		struct ce_desc *sdesc = CE_SRC_RING_TO_DESC(sbase, sw_index);
+
+		/* Return data from completed source descriptor */
+		*bufferp = __le32_to_cpu(sdesc->addr);
+		*nbytesp = __le16_to_cpu(sdesc->nbytes);
+		*transfer_idp = MS(__le16_to_cpu(sdesc->flags),
+						CE_DESC_FLAGS_META_DATA);
+
+		if (per_transfer_contextp)
+			*per_transfer_contextp =
+				src_ring->per_transfer_context[sw_index];
+
+		/* sanity */
+		src_ring->per_transfer_context[sw_index] = NULL;
+
+		/* Update sw_index */
+		sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+		src_ring->sw_index = sw_index;
+		ret = 0;
+	}
+
+	return ret;
+}
+
+/* NB: Modeled after ath10k_ce_completed_send_next */
+int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
+			       void **per_transfer_contextp,
+			       u32 *bufferp,
+			       unsigned int *nbytesp,
+			       unsigned int *transfer_idp)
+{
+	struct ce_ring_state *src_ring;
+	unsigned int nentries_mask;
+	unsigned int sw_index;
+	unsigned int write_index;
+	int ret;
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+
+	src_ring = ce_state->src_ring;
+
+	if (!src_ring)
+		return -EIO;
+
+	ar = ce_state->ar;
+	ar_pci = ath10k_pci_priv(ar);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	nentries_mask = src_ring->nentries_mask;
+	sw_index = src_ring->sw_index;
+	write_index = src_ring->write_index;
+
+	if (write_index != sw_index) {
+		struct ce_desc *base = src_ring->base_addr_owner_space;
+		struct ce_desc *desc = CE_SRC_RING_TO_DESC(base, sw_index);
+
+		/* Return data from completed source descriptor */
+		*bufferp = __le32_to_cpu(desc->addr);
+		*nbytesp = __le16_to_cpu(desc->nbytes);
+		*transfer_idp = MS(__le16_to_cpu(desc->flags),
+						CE_DESC_FLAGS_META_DATA);
+
+		if (per_transfer_contextp)
+			*per_transfer_contextp =
+				src_ring->per_transfer_context[sw_index];
+
+		/* sanity */
+		src_ring->per_transfer_context[sw_index] = NULL;
+
+		/* Update sw_index */
+		sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+		src_ring->sw_index = sw_index;
+		ret = 0;
+	} else {
+		ret = -EIO;
+	}
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+int ath10k_ce_completed_send_next(struct ce_state *ce_state,
+				  void **per_transfer_contextp,
+				  u32 *bufferp,
+				  unsigned int *nbytesp,
+				  unsigned int *transfer_idp)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ret = ath10k_ce_completed_send_next_nolock(ce_state,
+						   per_transfer_contextp,
+						   bufferp, nbytesp,
+						   transfer_idp);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+/*
+ * Guts of interrupt handler for per-engine interrupts on a particular CE.
+ *
+ * Invokes registered callbacks for recv_complete,
+ * send_complete, and watermarks.
+ */
+void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_state = ar_pci->ce_id_to_state[ce_id];
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	void *transfer_context;
+	u32 buf;
+	unsigned int nbytes;
+	unsigned int id;
+	unsigned int flags;
+
+	ath10k_pci_wake(ar);
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	/* Clear the copy-complete interrupts that will be handled here. */
+	ath10k_ce_engine_int_status_clear(ar, ctrl_addr,
+					  HOST_IS_COPY_COMPLETE_MASK);
+
+	if (ce_state->recv_cb) {
+		/*
+		 * Pop completed recv buffers and call the registered
+		 * recv callback for each
+		 */
+		while (ath10k_ce_completed_recv_next_nolock(ce_state,
+							    &transfer_context,
+							    &buf, &nbytes,
+							    &id, &flags) == 0) {
+			spin_unlock_bh(&ar_pci->ce_lock);
+			ce_state->recv_cb(ce_state, transfer_context, buf,
+					  nbytes, id, flags);
+			spin_lock_bh(&ar_pci->ce_lock);
+		}
+	}
+
+	if (ce_state->send_cb) {
+		/*
+		 * Pop completed send buffers and call the registered
+		 * send callback for each
+		 */
+		while (ath10k_ce_completed_send_next_nolock(ce_state,
+							    &transfer_context,
+							    &buf,
+							    &nbytes,
+							    &id) == 0) {
+			spin_unlock_bh(&ar_pci->ce_lock);
+			ce_state->send_cb(ce_state, transfer_context,
+					  buf, nbytes, id);
+			spin_lock_bh(&ar_pci->ce_lock);
+		}
+	}
+
+	/*
+	 * Misc CE interrupts are not being handled, but still need
+	 * to be cleared.
+	 */
+	ath10k_ce_engine_int_status_clear(ar, ctrl_addr, CE_WATERMARK_MASK);
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+	ath10k_pci_sleep(ar);
+}
+
+/*
+ * Handler for per-engine interrupts on ALL active CEs.
+ * This is used in cases where the system is sharing a
+ * single interrput for all CEs
+ */
+
+void ath10k_ce_per_engine_service_any(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ce_id;
+	u32 intr_summary;
+
+	ath10k_pci_wake(ar);
+	intr_summary = CE_INTERRUPT_SUMMARY(ar);
+
+	for (ce_id = 0; intr_summary && (ce_id < ar_pci->ce_count); ce_id++) {
+		if (intr_summary & (1 << ce_id))
+			intr_summary &= ~(1 << ce_id);
+		else
+			/* no intr pending on this CE */
+			continue;
+
+		ath10k_ce_per_engine_service(ar, ce_id);
+	}
+
+	ath10k_pci_sleep(ar);
+}
+
+/*
+ * Adjust interrupts for the copy complete handler.
+ * If it's needed for either send or recv, then unmask
+ * this interrupt; otherwise, mask it.
+ *
+ * Called with ce_lock held.
+ */
+static void ath10k_ce_per_engine_handler_adjust(struct ce_state *ce_state,
+						int disable_copy_compl_intr)
+{
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	struct ath10k *ar = ce_state->ar;
+
+	ath10k_pci_wake(ar);
+
+	if ((!disable_copy_compl_intr) &&
+	    (ce_state->send_cb || ce_state->recv_cb))
+		ath10k_ce_copy_complete_inter_enable(ar, ctrl_addr);
+	else
+		ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
+
+	ath10k_ce_watermark_intr_disable(ar, ctrl_addr);
+
+	ath10k_pci_sleep(ar);
+}
+
+void ath10k_ce_disable_interrupts(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ce_id;
+
+	ath10k_pci_wake(ar);
+	for (ce_id = 0; ce_id < ar_pci->ce_count; ce_id++) {
+		struct ce_state *ce_state = ar_pci->ce_id_to_state[ce_id];
+		u32 ctrl_addr = ce_state->ctrl_addr;
+
+		ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
+	}
+	ath10k_pci_sleep(ar);
+}
+
+void ath10k_ce_send_cb_register(struct ce_state *ce_state,
+				void (*send_cb) (struct ce_state *ce_state,
+						 void *transfer_context,
+						 u32 buffer,
+						 unsigned int nbytes,
+						 unsigned int transfer_id),
+				int disable_interrupts)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ce_state->send_cb = send_cb;
+	ath10k_ce_per_engine_handler_adjust(ce_state, disable_interrupts);
+	spin_unlock_bh(&ar_pci->ce_lock);
+}
+
+void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
+				void (*recv_cb) (struct ce_state *ce_state,
+						 void *transfer_context,
+						 u32 buffer,
+						 unsigned int nbytes,
+						 unsigned int transfer_id,
+						 unsigned int flags))
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ce_state->recv_cb = recv_cb;
+	ath10k_ce_per_engine_handler_adjust(ce_state, 0);
+	spin_unlock_bh(&ar_pci->ce_lock);
+}
+
+static int ath10k_ce_init_src_ring(struct ath10k *ar,
+				   unsigned int ce_id,
+				   struct ce_state *ce_state,
+				   const struct ce_attr *attr)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_ring_state *src_ring;
+	unsigned int nentries = attr->src_nentries;
+	unsigned int ce_nbytes;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+	dma_addr_t base_addr;
+	char *ptr;
+
+	nentries = roundup_pow_of_two(nentries);
+
+	if (ce_state->src_ring) {
+		WARN_ON(ce_state->src_ring->nentries != nentries);
+		return 0;
+	}
+
+	ce_nbytes = sizeof(struct ce_ring_state) + (nentries * sizeof(void *));
+	ptr = kzalloc(ce_nbytes, GFP_KERNEL);
+	if (ptr == NULL)
+		return -ENOMEM;
+
+	ce_state->src_ring = (struct ce_ring_state *)ptr;
+	src_ring = ce_state->src_ring;
+
+	ptr += sizeof(struct ce_ring_state);
+	src_ring->nentries = nentries;
+	src_ring->nentries_mask = nentries - 1;
+
+	ath10k_pci_wake(ar);
+	src_ring->sw_index = ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
+	src_ring->hw_index = src_ring->sw_index;
+
+	src_ring->write_index =
+		ath10k_ce_src_ring_write_index_get(ar, ctrl_addr);
+	ath10k_pci_sleep(ar);
+
+	src_ring->per_transfer_context = (void **)ptr;
+
+	/*
+	 * Legacy platforms that do not support cache
+	 * coherent DMA are unsupported
+	 */
+	src_ring->base_addr_owner_space_unaligned =
+		pci_alloc_consistent(ar_pci->pdev,
+				     (nentries * sizeof(struct ce_desc) +
+				      CE_DESC_RING_ALIGN),
+				     &base_addr);
+	src_ring->base_addr_ce_space_unaligned = base_addr;
+
+	src_ring->base_addr_owner_space = PTR_ALIGN(
+			src_ring->base_addr_owner_space_unaligned,
+			CE_DESC_RING_ALIGN);
+	src_ring->base_addr_ce_space = ALIGN(
+			src_ring->base_addr_ce_space_unaligned,
+			CE_DESC_RING_ALIGN);
+
+	/*
+	 * Also allocate a shadow src ring in regular
+	 * mem to use for faster access.
+	 */
+	src_ring->shadow_base_unaligned =
+		kmalloc((nentries * sizeof(struct ce_desc) +
+			 CE_DESC_RING_ALIGN), GFP_KERNEL);
+
+	src_ring->shadow_base = PTR_ALIGN(
+			src_ring->shadow_base_unaligned,
+			CE_DESC_RING_ALIGN);
+
+	ath10k_pci_wake(ar);
+	ath10k_ce_src_ring_base_addr_set(ar, ctrl_addr,
+					 src_ring->base_addr_ce_space);
+	ath10k_ce_src_ring_size_set(ar, ctrl_addr, nentries);
+	ath10k_ce_src_ring_dmax_set(ar, ctrl_addr, attr->src_sz_max);
+	ath10k_ce_src_ring_byte_swap_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_lowmark_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, nentries);
+	ath10k_pci_sleep(ar);
+
+	return 0;
+}
+
+static int ath10k_ce_init_dest_ring(struct ath10k *ar,
+				    unsigned int ce_id,
+				    struct ce_state *ce_state,
+				    const struct ce_attr *attr)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_ring_state *dest_ring;
+	unsigned int nentries = attr->dest_nentries;
+	unsigned int ce_nbytes;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+	dma_addr_t base_addr;
+	char *ptr;
+
+	nentries = roundup_pow_of_two(nentries);
+
+	if (ce_state->dest_ring) {
+		WARN_ON(ce_state->dest_ring->nentries != nentries);
+		return 0;
+	}
+
+	ce_nbytes = sizeof(struct ce_ring_state) + (nentries * sizeof(void *));
+	ptr = kzalloc(ce_nbytes, GFP_KERNEL);
+	if (ptr == NULL)
+		return -ENOMEM;
+
+	ce_state->dest_ring = (struct ce_ring_state *)ptr;
+	dest_ring = ce_state->dest_ring;
+
+	ptr += sizeof(struct ce_ring_state);
+	dest_ring->nentries = nentries;
+	dest_ring->nentries_mask = nentries - 1;
+
+	ath10k_pci_wake(ar);
+	dest_ring->sw_index = ath10k_ce_dest_ring_read_index_get(ar, ctrl_addr);
+	dest_ring->write_index =
+		ath10k_ce_dest_ring_write_index_get(ar, ctrl_addr);
+	ath10k_pci_sleep(ar);
+
+	dest_ring->per_transfer_context = (void **)ptr;
+
+	/*
+	 * Legacy platforms that do not support cache
+	 * coherent DMA are unsupported
+	 */
+	dest_ring->base_addr_owner_space_unaligned =
+		pci_alloc_consistent(ar_pci->pdev,
+				     (nentries * sizeof(struct ce_desc) +
+				      CE_DESC_RING_ALIGN),
+				     &base_addr);
+	dest_ring->base_addr_ce_space_unaligned = base_addr;
+
+	/*
+	 * Correctly initialize memory to 0 to prevent garbage
+	 * data crashing system when download firmware
+	 */
+	memset(dest_ring->base_addr_owner_space_unaligned, 0,
+	       nentries * sizeof(struct ce_desc) + CE_DESC_RING_ALIGN);
+
+	dest_ring->base_addr_owner_space = PTR_ALIGN(
+			dest_ring->base_addr_owner_space_unaligned,
+			CE_DESC_RING_ALIGN);
+	dest_ring->base_addr_ce_space = ALIGN(
+			dest_ring->base_addr_ce_space_unaligned,
+			CE_DESC_RING_ALIGN);
+
+	ath10k_pci_wake(ar);
+	ath10k_ce_dest_ring_base_addr_set(ar, ctrl_addr,
+					  dest_ring->base_addr_ce_space);
+	ath10k_ce_dest_ring_size_set(ar, ctrl_addr, nentries);
+	ath10k_ce_dest_ring_byte_swap_set(ar, ctrl_addr, 0);
+	ath10k_ce_dest_ring_lowmark_set(ar, ctrl_addr, 0);
+	ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, nentries);
+	ath10k_pci_sleep(ar);
+
+	return 0;
+}
+
+static struct ce_state *ath10k_ce_init_state(struct ath10k *ar,
+					     unsigned int ce_id,
+					     const struct ce_attr *attr)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_state = NULL;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	if (!ar_pci->ce_id_to_state[ce_id]) {
+		ce_state = kzalloc(sizeof(*ce_state), GFP_ATOMIC);
+		if (ce_state == NULL) {
+			spin_unlock_bh(&ar_pci->ce_lock);
+			return NULL;
+		}
+
+		ar_pci->ce_id_to_state[ce_id] = ce_state;
+		ce_state->ar = ar;
+		ce_state->id = ce_id;
+		ce_state->ctrl_addr = ctrl_addr;
+		ce_state->state = CE_RUNNING;
+		/* Save attribute flags */
+		ce_state->attr_flags = attr->flags;
+		ce_state->src_sz_max = attr->src_sz_max;
+	}
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ce_state;
+}
+
+/*
+ * Initialize a Copy Engine based on caller-supplied attributes.
+ * This may be called once to initialize both source and destination
+ * rings or it may be called twice for separate source and destination
+ * initialization. It may be that only one side or the other is
+ * initialized by software/firmware.
+ */
+struct ce_state *ath10k_ce_init(struct ath10k *ar,
+				unsigned int ce_id,
+				const struct ce_attr *attr)
+{
+	struct ce_state *ce_state;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+
+	ce_state = ath10k_ce_init_state(ar, ce_id, attr);
+	if (!ce_state) {
+		ath10k_err("Failed to initialize CE state for ID: %d\n", ce_id);
+		return NULL;
+	}
+
+	if (attr->src_nentries) {
+		if (ath10k_ce_init_src_ring(ar, ce_id, ce_state, attr)) {
+			ath10k_err("Failed to initialize CE src ring for ID: %d\n",
+				   ce_id);
+			ath10k_ce_deinit(ce_state);
+			return NULL;
+		}
+	}
+
+	if (attr->dest_nentries) {
+		if (ath10k_ce_init_dest_ring(ar, ce_id, ce_state, attr)) {
+			ath10k_err("Failed to initialize CE dest ring for ID: %d\n",
+				   ce_id);
+			ath10k_ce_deinit(ce_state);
+			return NULL;
+		}
+	}
+
+	/* Enable CE error interrupts */
+	ath10k_pci_wake(ar);
+	ath10k_ce_error_intr_enable(ar, ctrl_addr);
+	ath10k_pci_sleep(ar);
+
+	return ce_state;
+}
+
+void ath10k_ce_deinit(struct ce_state *ce_state)
+{
+	unsigned int ce_id = ce_state->id;
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	ce_state->state = CE_UNUSED;
+	ar_pci->ce_id_to_state[ce_id] = NULL;
+
+	if (ce_state->src_ring) {
+		kfree(ce_state->src_ring->shadow_base_unaligned);
+		pci_free_consistent(ar_pci->pdev,
+				    (ce_state->src_ring->nentries *
+				     sizeof(struct ce_desc) +
+				     CE_DESC_RING_ALIGN),
+				    ce_state->src_ring->base_addr_owner_space,
+				    ce_state->src_ring->base_addr_ce_space);
+		kfree(ce_state->src_ring);
+	}
+
+	if (ce_state->dest_ring) {
+		pci_free_consistent(ar_pci->pdev,
+				    (ce_state->dest_ring->nentries *
+				     sizeof(struct ce_desc) +
+				     CE_DESC_RING_ALIGN),
+				    ce_state->dest_ring->base_addr_owner_space,
+				    ce_state->dest_ring->base_addr_ce_space);
+		kfree(ce_state->dest_ring);
+	}
+	kfree(ce_state);
+}
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
new file mode 100644
index 0000000..c17f07c
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -0,0 +1,516 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _CE_H_
+#define _CE_H_
+
+#include "hif.h"
+
+
+/* Maximum number of Copy Engine's supported */
+#define CE_COUNT_MAX 8
+#define CE_HTT_H2T_MSG_SRC_NENTRIES 2048
+
+/* Descriptor rings must be aligned to this boundary */
+#define CE_DESC_RING_ALIGN	8
+#define CE_SENDLIST_ITEMS_MAX	12
+#define CE_SEND_FLAG_GATHER	0x00010000
+
+/*
+ * Copy Engine support: low-level Target-side Copy Engine API.
+ * This is a hardware access layer used by code that understands
+ * how to use copy engines.
+ */
+
+struct ce_state;
+
+
+/* Copy Engine operational state */
+enum ce_op_state {
+	CE_UNUSED,
+	CE_PAUSED,
+	CE_RUNNING,
+};
+
+#define CE_DESC_FLAGS_GATHER         (1 << 0)
+#define CE_DESC_FLAGS_BYTE_SWAP      (1 << 1)
+#define CE_DESC_FLAGS_META_DATA_MASK 0xFFFC
+#define CE_DESC_FLAGS_META_DATA_LSB  3
+
+struct ce_desc {
+	__le32 addr;
+	__le16 nbytes;
+	__le16 flags; /* %CE_DESC_FLAGS_ */
+};
+
+/* Copy Engine Ring internal state */
+struct ce_ring_state {
+	/* Number of entries in this ring; must be power of 2 */
+	unsigned int nentries;
+	unsigned int nentries_mask;
+
+	/*
+	 * For dest ring, this is the next index to be processed
+	 * by software after it was/is received into.
+	 *
+	 * For src ring, this is the last descriptor that was sent
+	 * and completion processed by software.
+	 *
+	 * Regardless of src or dest ring, this is an invariant
+	 * (modulo ring size):
+	 *     write index >= read index >= sw_index
+	 */
+	unsigned int sw_index;
+	/* cached copy */
+	unsigned int write_index;
+	/*
+	 * For src ring, this is the next index not yet processed by HW.
+	 * This is a cached copy of the real HW index (read index), used
+	 * for avoiding reading the HW index register more often than
+	 * necessary.
+	 * This extends the invariant:
+	 *     write index >= read index >= hw_index >= sw_index
+	 *
+	 * For dest ring, this is currently unused.
+	 */
+	/* cached copy */
+	unsigned int hw_index;
+
+	/* Start of DMA-coherent area reserved for descriptors */
+	/* Host address space */
+	void *base_addr_owner_space_unaligned;
+	/* CE address space */
+	u32 base_addr_ce_space_unaligned;
+
+	/*
+	 * Actual start of descriptors.
+	 * Aligned to descriptor-size boundary.
+	 * Points into reserved DMA-coherent area, above.
+	 */
+	/* Host address space */
+	void *base_addr_owner_space;
+
+	/* CE address space */
+	u32 base_addr_ce_space;
+	/*
+	 * Start of shadow copy of descriptors, within regular memory.
+	 * Aligned to descriptor-size boundary.
+	 */
+	void *shadow_base_unaligned;
+	struct ce_desc *shadow_base;
+
+	void **per_transfer_context;
+};
+
+/* Copy Engine internal state */
+struct ce_state {
+	struct ath10k *ar;
+	unsigned int id;
+
+	unsigned int attr_flags;
+
+	u32 ctrl_addr;
+	enum ce_op_state state;
+
+	void (*send_cb) (struct ce_state *ce_state,
+			 void *per_transfer_send_context,
+			 u32 buffer,
+			 unsigned int nbytes,
+			 unsigned int transfer_id);
+	void (*recv_cb) (struct ce_state *ce_state,
+			 void *per_transfer_recv_context,
+			 u32 buffer,
+			 unsigned int nbytes,
+			 unsigned int transfer_id,
+			 unsigned int flags);
+
+	unsigned int src_sz_max;
+	struct ce_ring_state *src_ring;
+	struct ce_ring_state *dest_ring;
+};
+
+struct ce_sendlist_item {
+	/* e.g. buffer or desc list */
+	dma_addr_t data;
+	union {
+		/* simple buffer */
+		unsigned int nbytes;
+		/* Rx descriptor list */
+		unsigned int ndesc;
+	} u;
+	/* externally-specified flags; OR-ed with internal flags */
+	u32 flags;
+};
+
+struct ce_sendlist {
+	unsigned int num_items;
+	struct ce_sendlist_item item[CE_SENDLIST_ITEMS_MAX];
+};
+
+/* Copy Engine settable attributes */
+struct ce_attr;
+
+/*==================Send====================*/
+
+/* ath10k_ce_send flags */
+#define CE_SEND_FLAG_BYTE_SWAP 1
+
+/*
+ * Queue a source buffer to be sent to an anonymous destination buffer.
+ *   ce         - which copy engine to use
+ *   buffer          - address of buffer
+ *   nbytes          - number of bytes to send
+ *   transfer_id     - arbitrary ID; reflected to destination
+ *   flags           - CE_SEND_FLAG_* values
+ * Returns 0 on success; otherwise an error status.
+ *
+ * Note: If no flags are specified, use CE's default data swap mode.
+ *
+ * Implementation note: pushes 1 buffer to Source ring
+ */
+int ath10k_ce_send(struct ce_state *ce_state,
+		   void *per_transfer_send_context,
+		   u32 buffer,
+		   unsigned int nbytes,
+		   /* 14 bits */
+		   unsigned int transfer_id,
+		   unsigned int flags);
+
+void ath10k_ce_send_cb_register(struct ce_state *ce_state,
+				void (*send_cb) (struct ce_state *ce_state,
+						 void *transfer_context,
+						 u32 buffer,
+						 unsigned int nbytes,
+						 unsigned int transfer_id),
+				int disable_interrupts);
+
+/* Append a simple buffer (address/length) to a sendlist. */
+void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist,
+				u32 buffer,
+				unsigned int nbytes,
+				/* OR-ed with internal flags */
+				u32 flags);
+
+/*
+ * Queue a "sendlist" of buffers to be sent using gather to a single
+ * anonymous destination buffer
+ *   ce         - which copy engine to use
+ *   sendlist        - list of simple buffers to send using gather
+ *   transfer_id     - arbitrary ID; reflected to destination
+ * Returns 0 on success; otherwise an error status.
+ *
+ * Implemenation note: Pushes multiple buffers with Gather to Source ring.
+ */
+int ath10k_ce_sendlist_send(struct ce_state *ce_state,
+			    void *per_transfer_send_context,
+			    struct ce_sendlist *sendlist,
+			    /* 14 bits */
+			    unsigned int transfer_id);
+
+/*==================Recv=======================*/
+
+/*
+ * Make a buffer available to receive. The buffer must be at least of a
+ * minimal size appropriate for this copy engine (src_sz_max attribute).
+ *   ce                    - which copy engine to use
+ *   per_transfer_recv_context  - context passed back to caller's recv_cb
+ *   buffer                     - address of buffer in CE space
+ * Returns 0 on success; otherwise an error status.
+ *
+ * Implemenation note: Pushes a buffer to Dest ring.
+ */
+int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
+			       void *per_transfer_recv_context,
+			       u32 buffer);
+
+void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
+				void (*recv_cb) (struct ce_state *ce_state,
+						 void *transfer_context,
+						 u32 buffer,
+						 unsigned int nbytes,
+						 unsigned int transfer_id,
+						 unsigned int flags));
+
+/* recv flags */
+/* Data is byte-swapped */
+#define CE_RECV_FLAG_SWAPPED	1
+
+/*
+ * Supply data for the next completed unprocessed receive descriptor.
+ * Pops buffer from Dest ring.
+ */
+int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
+				  void **per_transfer_contextp,
+				  u32 *bufferp,
+				  unsigned int *nbytesp,
+				  unsigned int *transfer_idp,
+				  unsigned int *flagsp);
+/*
+ * Supply data for the next completed unprocessed send descriptor.
+ * Pops 1 completed send buffer from Source ring.
+ */
+int ath10k_ce_completed_send_next(struct ce_state *ce_state,
+			   void **per_transfer_contextp,
+			   u32 *bufferp,
+			   unsigned int *nbytesp,
+			   unsigned int *transfer_idp);
+
+/*==================CE Engine Initialization=======================*/
+
+/* Initialize an instance of a CE */
+struct ce_state *ath10k_ce_init(struct ath10k *ar,
+				unsigned int ce_id,
+				const struct ce_attr *attr);
+
+/*==================CE Engine Shutdown=======================*/
+/*
+ * Support clean shutdown by allowing the caller to revoke
+ * receive buffers.  Target DMA must be stopped before using
+ * this API.
+ */
+int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
+			       void **per_transfer_contextp,
+			       u32 *bufferp);
+
+/*
+ * Support clean shutdown by allowing the caller to cancel
+ * pending sends.  Target DMA must be stopped before using
+ * this API.
+ */
+int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
+			       void **per_transfer_contextp,
+			       u32 *bufferp,
+			       unsigned int *nbytesp,
+			       unsigned int *transfer_idp);
+
+void ath10k_ce_deinit(struct ce_state *ce_state);
+
+/*==================CE Interrupt Handlers====================*/
+void ath10k_ce_per_engine_service_any(struct ath10k *ar);
+void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id);
+void ath10k_ce_disable_interrupts(struct ath10k *ar);
+
+/* ce_attr.flags values */
+/* Use NonSnooping PCIe accesses? */
+#define CE_ATTR_NO_SNOOP		1
+
+/* Byte swap data words */
+#define CE_ATTR_BYTE_SWAP_DATA		2
+
+/* Swizzle descriptors? */
+#define CE_ATTR_SWIZZLE_DESCRIPTORS	4
+
+/* no interrupt on copy completion */
+#define CE_ATTR_DIS_INTR		8
+
+/* Attributes of an instance of a Copy Engine */
+struct ce_attr {
+	/* CE_ATTR_* values */
+	unsigned int flags;
+
+	/* currently not in use */
+	unsigned int priority;
+
+	/* #entries in source ring - Must be a power of 2 */
+	unsigned int src_nentries;
+
+	/*
+	 * Max source send size for this CE.
+	 * This is also the minimum size of a destination buffer.
+	 */
+	unsigned int src_sz_max;
+
+	/* #entries in destination ring - Must be a power of 2 */
+	unsigned int dest_nentries;
+
+	/* Future use */
+	void *reserved;
+};
+
+/*
+ * When using sendlist_send to transfer multiple buffer fragments, the
+ * transfer context of each fragment, except last one, will be filled
+ * with CE_SENDLIST_ITEM_CTXT. ce_completed_send will return success for
+ * each fragment done with send and the transfer context would be
+ * CE_SENDLIST_ITEM_CTXT. Upper layer could use this to identify the
+ * status of a send completion.
+ */
+#define CE_SENDLIST_ITEM_CTXT	((void *)0xcecebeef)
+
+#define SR_BA_ADDRESS		0x0000
+#define SR_SIZE_ADDRESS		0x0004
+#define DR_BA_ADDRESS		0x0008
+#define DR_SIZE_ADDRESS		0x000c
+#define CE_CMD_ADDRESS		0x0018
+
+#define CE_CTRL1_DST_RING_BYTE_SWAP_EN_MSB	17
+#define CE_CTRL1_DST_RING_BYTE_SWAP_EN_LSB	17
+#define CE_CTRL1_DST_RING_BYTE_SWAP_EN_MASK	0x00020000
+#define CE_CTRL1_DST_RING_BYTE_SWAP_EN_SET(x) \
+	(((0 | (x)) << CE_CTRL1_DST_RING_BYTE_SWAP_EN_LSB) & \
+	CE_CTRL1_DST_RING_BYTE_SWAP_EN_MASK)
+
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MSB	16
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_LSB	16
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MASK	0x00010000
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_GET(x) \
+	(((x) & CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MASK) >> \
+	 CE_CTRL1_SRC_RING_BYTE_SWAP_EN_LSB)
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_SET(x) \
+	(((0 | (x)) << CE_CTRL1_SRC_RING_BYTE_SWAP_EN_LSB) & \
+	 CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MASK)
+
+#define CE_CTRL1_DMAX_LENGTH_MSB		15
+#define CE_CTRL1_DMAX_LENGTH_LSB		0
+#define CE_CTRL1_DMAX_LENGTH_MASK		0x0000ffff
+#define CE_CTRL1_DMAX_LENGTH_GET(x) \
+	(((x) & CE_CTRL1_DMAX_LENGTH_MASK) >> CE_CTRL1_DMAX_LENGTH_LSB)
+#define CE_CTRL1_DMAX_LENGTH_SET(x) \
+	(((0 | (x)) << CE_CTRL1_DMAX_LENGTH_LSB) & CE_CTRL1_DMAX_LENGTH_MASK)
+
+#define CE_CTRL1_ADDRESS			0x0010
+#define CE_CTRL1_HW_MASK			0x0007ffff
+#define CE_CTRL1_SW_MASK			0x0007ffff
+#define CE_CTRL1_HW_WRITE_MASK			0x00000000
+#define CE_CTRL1_SW_WRITE_MASK			0x0007ffff
+#define CE_CTRL1_RSTMASK			0xffffffff
+#define CE_CTRL1_RESET				0x00000080
+
+#define CE_CMD_HALT_STATUS_MSB			3
+#define CE_CMD_HALT_STATUS_LSB			3
+#define CE_CMD_HALT_STATUS_MASK			0x00000008
+#define CE_CMD_HALT_STATUS_GET(x) \
+	(((x) & CE_CMD_HALT_STATUS_MASK) >> CE_CMD_HALT_STATUS_LSB)
+#define CE_CMD_HALT_STATUS_SET(x) \
+	(((0 | (x)) << CE_CMD_HALT_STATUS_LSB) & CE_CMD_HALT_STATUS_MASK)
+#define CE_CMD_HALT_STATUS_RESET		0
+#define CE_CMD_HALT_MSB				0
+#define CE_CMD_HALT_MASK			0x00000001
+
+#define HOST_IE_COPY_COMPLETE_MSB		0
+#define HOST_IE_COPY_COMPLETE_LSB		0
+#define HOST_IE_COPY_COMPLETE_MASK		0x00000001
+#define HOST_IE_COPY_COMPLETE_GET(x) \
+	(((x) & HOST_IE_COPY_COMPLETE_MASK) >> HOST_IE_COPY_COMPLETE_LSB)
+#define HOST_IE_COPY_COMPLETE_SET(x) \
+	(((0 | (x)) << HOST_IE_COPY_COMPLETE_LSB) & HOST_IE_COPY_COMPLETE_MASK)
+#define HOST_IE_COPY_COMPLETE_RESET		0
+#define HOST_IE_ADDRESS				0x002c
+
+#define HOST_IS_DST_RING_LOW_WATERMARK_MASK	0x00000010
+#define HOST_IS_DST_RING_HIGH_WATERMARK_MASK	0x00000008
+#define HOST_IS_SRC_RING_LOW_WATERMARK_MASK	0x00000004
+#define HOST_IS_SRC_RING_HIGH_WATERMARK_MASK	0x00000002
+#define HOST_IS_COPY_COMPLETE_MASK		0x00000001
+#define HOST_IS_ADDRESS				0x0030
+
+#define MISC_IE_ADDRESS				0x0034
+
+#define MISC_IS_AXI_ERR_MASK			0x00000400
+
+#define MISC_IS_DST_ADDR_ERR_MASK		0x00000200
+#define MISC_IS_SRC_LEN_ERR_MASK		0x00000100
+#define MISC_IS_DST_MAX_LEN_VIO_MASK		0x00000080
+#define MISC_IS_DST_RING_OVERFLOW_MASK		0x00000040
+#define MISC_IS_SRC_RING_OVERFLOW_MASK		0x00000020
+
+#define MISC_IS_ADDRESS				0x0038
+
+#define SR_WR_INDEX_ADDRESS			0x003c
+
+#define DST_WR_INDEX_ADDRESS			0x0040
+
+#define CURRENT_SRRI_ADDRESS			0x0044
+
+#define CURRENT_DRRI_ADDRESS			0x0048
+
+#define SRC_WATERMARK_LOW_MSB			31
+#define SRC_WATERMARK_LOW_LSB			16
+#define SRC_WATERMARK_LOW_MASK			0xffff0000
+#define SRC_WATERMARK_LOW_GET(x) \
+	(((x) & SRC_WATERMARK_LOW_MASK) >> SRC_WATERMARK_LOW_LSB)
+#define SRC_WATERMARK_LOW_SET(x) \
+	(((0 | (x)) << SRC_WATERMARK_LOW_LSB) & SRC_WATERMARK_LOW_MASK)
+#define SRC_WATERMARK_LOW_RESET			0
+#define SRC_WATERMARK_HIGH_MSB			15
+#define SRC_WATERMARK_HIGH_LSB			0
+#define SRC_WATERMARK_HIGH_MASK			0x0000ffff
+#define SRC_WATERMARK_HIGH_GET(x) \
+	(((x) & SRC_WATERMARK_HIGH_MASK) >> SRC_WATERMARK_HIGH_LSB)
+#define SRC_WATERMARK_HIGH_SET(x) \
+	(((0 | (x)) << SRC_WATERMARK_HIGH_LSB) & SRC_WATERMARK_HIGH_MASK)
+#define SRC_WATERMARK_HIGH_RESET		0
+#define SRC_WATERMARK_ADDRESS			0x004c
+
+#define DST_WATERMARK_LOW_LSB			16
+#define DST_WATERMARK_LOW_MASK			0xffff0000
+#define DST_WATERMARK_LOW_SET(x) \
+	(((0 | (x)) << DST_WATERMARK_LOW_LSB) & DST_WATERMARK_LOW_MASK)
+#define DST_WATERMARK_LOW_RESET			0
+#define DST_WATERMARK_HIGH_MSB			15
+#define DST_WATERMARK_HIGH_LSB			0
+#define DST_WATERMARK_HIGH_MASK			0x0000ffff
+#define DST_WATERMARK_HIGH_GET(x) \
+	(((x) & DST_WATERMARK_HIGH_MASK) >> DST_WATERMARK_HIGH_LSB)
+#define DST_WATERMARK_HIGH_SET(x) \
+	(((0 | (x)) << DST_WATERMARK_HIGH_LSB) & DST_WATERMARK_HIGH_MASK)
+#define DST_WATERMARK_HIGH_RESET		0
+#define DST_WATERMARK_ADDRESS			0x0050
+
+
+static inline u32 ath10k_ce_base_address(unsigned int ce_id)
+{
+	return CE0_BASE_ADDRESS + (CE1_BASE_ADDRESS - CE0_BASE_ADDRESS) * ce_id;
+}
+
+#define CE_WATERMARK_MASK (HOST_IS_SRC_RING_LOW_WATERMARK_MASK  | \
+			   HOST_IS_SRC_RING_HIGH_WATERMARK_MASK | \
+			   HOST_IS_DST_RING_LOW_WATERMARK_MASK  | \
+			   HOST_IS_DST_RING_HIGH_WATERMARK_MASK)
+
+#define CE_ERROR_MASK	(MISC_IS_AXI_ERR_MASK           | \
+			 MISC_IS_DST_ADDR_ERR_MASK      | \
+			 MISC_IS_SRC_LEN_ERR_MASK       | \
+			 MISC_IS_DST_MAX_LEN_VIO_MASK   | \
+			 MISC_IS_DST_RING_OVERFLOW_MASK | \
+			 MISC_IS_SRC_RING_OVERFLOW_MASK)
+
+#define CE_SRC_RING_TO_DESC(baddr, idx) \
+	(&(((struct ce_desc *)baddr)[idx]))
+
+#define CE_DEST_RING_TO_DESC(baddr, idx) \
+	(&(((struct ce_desc *)baddr)[idx]))
+
+/* Ring arithmetic (modulus number of entries in ring, which is a pwr of 2). */
+#define CE_RING_DELTA(nentries_mask, fromidx, toidx) \
+	(((int)(toidx)-(int)(fromidx)) & (nentries_mask))
+
+#define CE_RING_IDX_INCR(nentries_mask, idx) (((idx) + 1) & (nentries_mask))
+
+#define CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_LSB		8
+#define CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_MASK		0x0000ff00
+#define CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_GET(x) \
+	(((x) & CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_MASK) >> \
+		CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_LSB)
+#define CE_WRAPPER_INTERRUPT_SUMMARY_ADDRESS			0x0000
+
+#define CE_INTERRUPT_SUMMARY(ar) \
+	CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_GET( \
+		ath10k_pci_read32((ar), CE_WRAPPER_BASE_ADDRESS + \
+		CE_WRAPPER_INTERRUPT_SUMMARY_ADDRESS))
+
+#endif /* _CE_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
new file mode 100644
index 0000000..2b3426b
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -0,0 +1,665 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+
+#include "core.h"
+#include "mac.h"
+#include "htc.h"
+#include "hif.h"
+#include "wmi.h"
+#include "bmi.h"
+#include "debug.h"
+#include "htt.h"
+
+unsigned int ath10k_debug_mask;
+static bool uart_print;
+static unsigned int ath10k_p2p;
+module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
+module_param(uart_print, bool, 0644);
+module_param_named(p2p, ath10k_p2p, uint, 0644);
+MODULE_PARM_DESC(debug_mask, "Debugging mask");
+MODULE_PARM_DESC(uart_print, "Uart target debugging");
+MODULE_PARM_DESC(p2p, "Enable ath10k P2P support");
+
+static const struct ath10k_hw_params ath10k_hw_params_list[] = {
+	{
+		.id = QCA988X_HW_1_0_VERSION,
+		.name = "qca988x hw1.0",
+		.patch_load_addr = QCA988X_HW_1_0_PATCH_LOAD_ADDR,
+		.fw = {
+			.dir = QCA988X_HW_1_0_FW_DIR,
+			.fw = QCA988X_HW_1_0_FW_FILE,
+			.otp = QCA988X_HW_1_0_OTP_FILE,
+			.board = QCA988X_HW_1_0_BOARD_DATA_FILE,
+		},
+	},
+	{
+		.id = QCA988X_HW_2_0_VERSION,
+		.name = "qca988x hw2.0",
+		.patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
+		.fw = {
+			.dir = QCA988X_HW_2_0_FW_DIR,
+			.fw = QCA988X_HW_2_0_FW_FILE,
+			.otp = QCA988X_HW_2_0_OTP_FILE,
+			.board = QCA988X_HW_2_0_BOARD_DATA_FILE,
+		},
+	},
+};
+
+static void ath10k_send_suspend_complete(struct ath10k *ar)
+{
+	ath10k_dbg(ATH10K_DBG_CORE, "%s\n", __func__);
+
+	ar->is_target_paused = true;
+	wake_up(&ar->event_queue);
+}
+
+static int ath10k_check_fw_version(struct ath10k *ar)
+{
+	char version[32];
+
+	if (ar->fw_version_major >= SUPPORTED_FW_MAJOR &&
+	    ar->fw_version_minor >= SUPPORTED_FW_MINOR &&
+	    ar->fw_version_release >= SUPPORTED_FW_RELEASE &&
+	    ar->fw_version_build >= SUPPORTED_FW_BUILD)
+		return 0;
+
+	snprintf(version, sizeof(version), "%u.%u.%u.%u",
+		 SUPPORTED_FW_MAJOR, SUPPORTED_FW_MINOR,
+		 SUPPORTED_FW_RELEASE, SUPPORTED_FW_BUILD);
+
+	ath10k_warn("WARNING: Firmware version %s is not officially supported.\n",
+		    ar->hw->wiphy->fw_version);
+	ath10k_warn("Please upgrade to version %s (or newer)\n", version);
+
+	return 0;
+}
+
+static int ath10k_init_connect_htc(struct ath10k *ar)
+{
+	int status;
+
+	status = ath10k_wmi_connect_htc_service(ar);
+	if (status)
+		goto conn_fail;
+
+	/* Start HTC */
+	status = ath10k_htc_start(ar->htc);
+	if (status)
+		goto conn_fail;
+
+	/* Wait for WMI event to be ready */
+	status = ath10k_wmi_wait_for_service_ready(ar);
+	if (status <= 0) {
+		ath10k_warn("wmi service ready event not received");
+		status = -ETIMEDOUT;
+		goto timeout;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE, "core wmi ready\n");
+	return 0;
+
+timeout:
+	ath10k_htc_stop(ar->htc);
+conn_fail:
+	return status;
+}
+
+static int ath10k_init_configure_target(struct ath10k *ar)
+{
+	u32 param_host;
+	int ret;
+
+	/* tell target which HTC version it is used*/
+	ret = ath10k_bmi_write32(ar, hi_app_host_interest,
+				 HTC_PROTOCOL_VERSION);
+	if (ret) {
+		ath10k_err("settings HTC version failed\n");
+		return ret;
+	}
+
+	/* set the firmware mode to STA/IBSS/AP */
+	ret = ath10k_bmi_read32(ar, hi_option_flag, &param_host);
+	if (ret) {
+		ath10k_err("setting firmware mode (1/2) failed\n");
+		return ret;
+	}
+
+	/* TODO following parameters need to be re-visited. */
+	/* num_device */
+	param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
+	/* Firmware mode */
+	/* FIXME: Why FW_MODE_AP ??.*/
+	param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
+	/* mac_addr_method */
+	param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
+	/* firmware_bridge */
+	param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
+	/* fwsubmode */
+	param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
+
+	ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
+	if (ret) {
+		ath10k_err("setting firmware mode (2/2) failed\n");
+		return ret;
+	}
+
+	/* We do all byte-swapping on the host */
+	ret = ath10k_bmi_write32(ar, hi_be, 0);
+	if (ret) {
+		ath10k_err("setting host CPU BE mode failed\n");
+		return ret;
+	}
+
+	/* FW descriptor/Data swap flags */
+	ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
+
+	if (ret) {
+		ath10k_err("setting FW data/desc swap flags failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
+						   const char *dir,
+						   const char *file)
+{
+	char filename[100];
+	const struct firmware *fw;
+	int ret;
+
+	if (file == NULL)
+		return ERR_PTR(-ENOENT);
+
+	if (dir == NULL)
+		dir = ".";
+
+	snprintf(filename, sizeof(filename), "%s/%s", dir, file);
+	ret = request_firmware(&fw, filename, ar->dev);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return fw;
+}
+
+static int ath10k_push_board_ext_data(struct ath10k *ar,
+				      const struct firmware *fw)
+{
+	u32 board_data_size = QCA988X_BOARD_DATA_SZ;
+	u32 board_ext_data_size = QCA988X_BOARD_EXT_DATA_SZ;
+	u32 board_ext_data_addr;
+	int ret;
+
+	ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
+	if (ret) {
+		ath10k_err("could not read board ext data addr (%d)\n", ret);
+		return ret;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE,
+		   "ath10k: Board extended Data download addr: 0x%x\n",
+		   board_ext_data_addr);
+
+	if (board_ext_data_addr == 0)
+		return 0;
+
+	if (fw->size != (board_data_size + board_ext_data_size)) {
+		ath10k_err("invalid board (ext) data sizes %zu != %d+%d\n",
+			   fw->size, board_data_size, board_ext_data_size);
+		return -EINVAL;
+	}
+
+	ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
+				      fw->data + board_data_size,
+				      board_ext_data_size);
+	if (ret) {
+		ath10k_err("could not write board ext data (%d)\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
+				 (board_ext_data_size << 16) | 1);
+	if (ret) {
+		ath10k_err("could not write board ext data bit (%d)\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ath10k_download_board_data(struct ath10k *ar)
+{
+	u32 board_data_size = QCA988X_BOARD_DATA_SZ;
+	u32 address;
+	const struct firmware *fw;
+	int ret;
+
+	fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+				  ar->hw_params.fw.board);
+	if (IS_ERR(fw)) {
+		ath10k_err("could not fetch board data fw file (%ld)\n",
+			   PTR_ERR(fw));
+		return PTR_ERR(fw);
+	}
+
+	ret = ath10k_push_board_ext_data(ar, fw);
+	if (ret) {
+		ath10k_err("could not push board ext data (%d)\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_bmi_read32(ar, hi_board_data, &address);
+	if (ret) {
+		ath10k_err("could not read board data addr (%d)\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_bmi_write_memory(ar, address, fw->data,
+				      min_t(u32, board_data_size, fw->size));
+	if (ret) {
+		ath10k_err("could not write board data (%d)\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
+	if (ret) {
+		ath10k_err("could not write board data bit (%d)\n", ret);
+		goto exit;
+	}
+
+exit:
+	release_firmware(fw);
+	return ret;
+}
+
+static int ath10k_download_and_run_otp(struct ath10k *ar)
+{
+	const struct firmware *fw;
+	u32 address;
+	u32 exec_param;
+	int ret;
+
+	/* OTP is optional */
+
+	if (ar->hw_params.fw.otp == NULL) {
+		ath10k_info("otp file not defined\n");
+		return 0;
+	}
+
+	address = ar->hw_params.patch_load_addr;
+
+	fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+				  ar->hw_params.fw.otp);
+	if (IS_ERR(fw)) {
+		ath10k_warn("could not fetch otp (%ld)\n", PTR_ERR(fw));
+		return 0;
+	}
+
+	ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size);
+	if (ret) {
+		ath10k_err("could not write otp (%d)\n", ret);
+		goto exit;
+	}
+
+	exec_param = 0;
+	ret = ath10k_bmi_execute(ar, address, &exec_param);
+	if (ret) {
+		ath10k_err("could not execute otp (%d)\n", ret);
+		goto exit;
+	}
+
+exit:
+	release_firmware(fw);
+	return ret;
+}
+
+static int ath10k_download_fw(struct ath10k *ar)
+{
+	const struct firmware *fw;
+	u32 address;
+	int ret;
+
+	if (ar->hw_params.fw.fw == NULL)
+		return -EINVAL;
+
+	address = ar->hw_params.patch_load_addr;
+
+	fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+				  ar->hw_params.fw.fw);
+	if (IS_ERR(fw)) {
+		ath10k_err("could not fetch fw (%ld)\n", PTR_ERR(fw));
+		return PTR_ERR(fw);
+	}
+
+	ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size);
+	if (ret) {
+		ath10k_err("could not write fw (%d)\n", ret);
+		goto exit;
+	}
+
+exit:
+	release_firmware(fw);
+	return ret;
+}
+
+static int ath10k_init_download_firmware(struct ath10k *ar)
+{
+	int ret;
+
+	ret = ath10k_download_board_data(ar);
+	if (ret)
+		return ret;
+
+	ret = ath10k_download_and_run_otp(ar);
+	if (ret)
+		return ret;
+
+	ret = ath10k_download_fw(ar);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+
+static int ath10k_init_uart(struct ath10k *ar)
+{
+	int ret;
+
+	/*
+	 * Explicitly setting UART prints to zero as target turns it on
+	 * based on scratch registers.
+	 */
+	ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
+	if (ret) {
+		ath10k_warn("could not disable UART prints (%d)\n", ret);
+		return ret;
+	}
+
+	if (!uart_print) {
+		ath10k_info("UART prints disabled\n");
+		return 0;
+	}
+
+	ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, 7);
+	if (ret) {
+		ath10k_warn("could not enable UART prints (%d)\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
+	if (ret) {
+		ath10k_warn("could not enable UART prints (%d)\n", ret);
+		return ret;
+	}
+
+	ath10k_info("UART prints enabled\n");
+	return 0;
+}
+
+static int ath10k_init_hw_params(struct ath10k *ar)
+{
+	const struct ath10k_hw_params *uninitialized_var(hw_params);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
+		hw_params = &ath10k_hw_params_list[i];
+
+		if (hw_params->id == ar->target_version)
+			break;
+	}
+
+	if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
+		ath10k_err("Unsupported hardware version: 0x%x\n",
+			   ar->target_version);
+		return -EINVAL;
+	}
+
+	ar->hw_params = *hw_params;
+
+	ath10k_info("Hardware name %s version 0x%x\n",
+		    ar->hw_params.name, ar->target_version);
+
+	return 0;
+}
+
+struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
+				  enum ath10k_bus bus,
+				  const struct ath10k_hif_ops *hif_ops)
+{
+	struct ath10k *ar;
+
+	ar = ath10k_mac_create();
+	if (!ar)
+		return NULL;
+
+	ar->ath_common.priv = ar;
+	ar->ath_common.hw = ar->hw;
+
+	ar->p2p = !!ath10k_p2p;
+	ar->dev = dev;
+
+	ar->hif.priv = hif_priv;
+	ar->hif.ops = hif_ops;
+	ar->hif.bus = bus;
+
+	ar->free_vdev_map = 0xFF; /* 8 vdevs */
+
+	init_completion(&ar->scan.started);
+	init_completion(&ar->scan.completed);
+	init_completion(&ar->scan.on_channel);
+
+	init_completion(&ar->install_key_done);
+	init_completion(&ar->vdev_setup_done);
+
+	setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar);
+
+	ar->workqueue = create_singlethread_workqueue("ath10k_wq");
+	if (!ar->workqueue)
+		goto err_wq;
+
+	mutex_init(&ar->conf_mutex);
+	spin_lock_init(&ar->data_lock);
+
+	INIT_LIST_HEAD(&ar->peers);
+	init_waitqueue_head(&ar->peer_mapping_wq);
+
+	init_completion(&ar->offchan_tx_completed);
+	INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
+	skb_queue_head_init(&ar->offchan_tx_queue);
+
+	init_waitqueue_head(&ar->event_queue);
+
+	return ar;
+
+err_wq:
+	ath10k_mac_destroy(ar);
+	return NULL;
+}
+EXPORT_SYMBOL(ath10k_core_create);
+
+void ath10k_core_destroy(struct ath10k *ar)
+{
+	flush_workqueue(ar->workqueue);
+	destroy_workqueue(ar->workqueue);
+
+	ath10k_mac_destroy(ar);
+}
+EXPORT_SYMBOL(ath10k_core_destroy);
+
+
+int ath10k_core_register(struct ath10k *ar)
+{
+	struct ath10k_htc_ops htc_ops;
+	struct bmi_target_info target_info;
+	int status;
+
+	memset(&target_info, 0, sizeof(target_info));
+	status = ath10k_bmi_get_target_info(ar, &target_info);
+	if (status)
+		goto err;
+
+	ar->target_version = target_info.version;
+	ar->hw->wiphy->hw_version = target_info.version;
+
+	status = ath10k_init_hw_params(ar);
+	if (status)
+		goto err;
+
+	if (ath10k_init_configure_target(ar)) {
+		status = -EINVAL;
+		goto err;
+	}
+
+	status = ath10k_init_download_firmware(ar);
+	if (status)
+		goto err;
+
+	status = ath10k_init_uart(ar);
+	if (status)
+		goto err;
+
+	htc_ops.target_send_suspend_complete = ath10k_send_suspend_complete;
+
+	ar->htc = ath10k_htc_create(ar, &htc_ops);
+	if (IS_ERR(ar->htc)) {
+		status = PTR_ERR(ar->htc);
+		ath10k_err("could not create HTC (%d)\n", status);
+		goto err;
+	}
+
+	status = ath10k_bmi_done(ar);
+	if (status)
+		goto err_htc_destroy;
+
+	status = ath10k_wmi_attach(ar);
+	if (status) {
+		ath10k_err("WMI attach failed: %d\n", status);
+		goto err_htc_destroy;
+	}
+
+	status = ath10k_htc_wait_target(ar->htc);
+	if (status)
+		goto err_wmi_detach;
+
+	ar->htt = ath10k_htt_attach(ar);
+	if (!ar->htt) {
+		status = -ENOMEM;
+		goto err_wmi_detach;
+	}
+
+	status = ath10k_init_connect_htc(ar);
+	if (status)
+		goto err_htt_detach;
+
+	ath10k_info("firmware %s booted\n", ar->hw->wiphy->fw_version);
+
+	status = ath10k_check_fw_version(ar);
+	if (status)
+		goto err_disconnect_htc;
+
+	status = ath10k_wmi_cmd_init(ar);
+	if (status) {
+		ath10k_err("could not send WMI init command (%d)\n", status);
+		goto err_disconnect_htc;
+	}
+
+	status = ath10k_wmi_wait_for_unified_ready(ar);
+	if (status <= 0) {
+		ath10k_err("wmi unified ready event not received\n");
+		status = -ETIMEDOUT;
+		goto err_disconnect_htc;
+	}
+
+	status = ath10k_htt_attach_target(ar->htt);
+	if (status)
+		goto err_disconnect_htc;
+
+	status = ath10k_mac_register(ar);
+	if (status)
+		goto err_disconnect_htc;
+
+	status = ath10k_debug_create(ar);
+	if (status) {
+		ath10k_err("unable to initialize debugfs\n");
+		goto err_unregister_mac;
+	}
+
+	return 0;
+
+err_unregister_mac:
+	ath10k_mac_unregister(ar);
+err_disconnect_htc:
+	ath10k_htc_stop(ar->htc);
+err_htt_detach:
+	ath10k_htt_detach(ar->htt);
+err_wmi_detach:
+	ath10k_wmi_detach(ar);
+err_htc_destroy:
+	ath10k_htc_destroy(ar->htc);
+err:
+	return status;
+}
+EXPORT_SYMBOL(ath10k_core_register);
+
+void ath10k_core_unregister(struct ath10k *ar)
+{
+	/* We must unregister from mac80211 before we stop HTC and HIF.
+	 * Otherwise we will fail to submit commands to FW and mac80211 will be
+	 * unhappy about callback failures. */
+	ath10k_mac_unregister(ar);
+	ath10k_htc_stop(ar->htc);
+	ath10k_htt_detach(ar->htt);
+	ath10k_wmi_detach(ar);
+	ath10k_htc_destroy(ar->htc);
+}
+EXPORT_SYMBOL(ath10k_core_unregister);
+
+int ath10k_core_target_suspend(struct ath10k *ar)
+{
+	int ret;
+
+	ath10k_dbg(ATH10K_DBG_CORE, "%s: called", __func__);
+
+	ret = ath10k_wmi_pdev_suspend_target(ar);
+	if (ret)
+		ath10k_warn("could not suspend target (%d)\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_core_target_suspend);
+
+int ath10k_core_target_resume(struct ath10k *ar)
+{
+	int ret;
+
+	ath10k_dbg(ATH10K_DBG_CORE, "%s: called", __func__);
+
+	ret = ath10k_wmi_pdev_resume_target(ar);
+	if (ret)
+		ath10k_warn("could not resume target (%d)\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_core_target_resume);
+
+MODULE_AUTHOR("Qualcomm Atheros");
+MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
new file mode 100644
index 0000000..539336d
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -0,0 +1,369 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _CORE_H_
+#define _CORE_H_
+
+#include <linux/completion.h>
+#include <linux/if_ether.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+
+#include "htc.h"
+#include "hw.h"
+#include "targaddrs.h"
+#include "wmi.h"
+#include "../ath.h"
+#include "../regd.h"
+
+#define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB)
+#define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
+#define WO(_f)      ((_f##_OFFSET) >> 2)
+
+#define ATH10K_SCAN_ID 0
+#define WMI_READY_TIMEOUT (5 * HZ)
+#define ATH10K_FLUSH_TIMEOUT_HZ (5*HZ)
+
+/* Antenna noise floor */
+#define ATH10K_DEFAULT_NOISE_FLOOR -95
+
+struct ath10k;
+
+enum ath10k_bus {
+	ATH10K_BUS_PCI,
+};
+
+struct ath10k_skb_cb {
+	dma_addr_t paddr;
+	bool is_mapped;
+	bool is_aborted;
+
+	struct {
+		u8 vdev_id;
+		u16 msdu_id;
+		u8 tid;
+		bool is_offchan;
+		bool is_conf;
+		bool discard;
+		bool no_ack;
+		u8 refcount;
+		struct sk_buff *txfrag;
+		struct sk_buff *msdu;
+	} __packed htt;
+
+	/* 4 bytes left on 64bit arch */
+} __packed;
+
+static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
+{
+	BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
+		     IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
+	return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
+}
+
+static inline int ath10k_skb_map(struct device *dev, struct sk_buff *skb)
+{
+	if (ATH10K_SKB_CB(skb)->is_mapped)
+		return -EINVAL;
+
+	ATH10K_SKB_CB(skb)->paddr = dma_map_single(dev, skb->data, skb->len,
+						   DMA_TO_DEVICE);
+
+	if (unlikely(dma_mapping_error(dev, ATH10K_SKB_CB(skb)->paddr)))
+		return -EIO;
+
+	ATH10K_SKB_CB(skb)->is_mapped = true;
+	return 0;
+}
+
+static inline int ath10k_skb_unmap(struct device *dev, struct sk_buff *skb)
+{
+	if (!ATH10K_SKB_CB(skb)->is_mapped)
+		return -EINVAL;
+
+	dma_unmap_single(dev, ATH10K_SKB_CB(skb)->paddr, skb->len,
+			 DMA_TO_DEVICE);
+	ATH10K_SKB_CB(skb)->is_mapped = false;
+	return 0;
+}
+
+static inline u32 host_interest_item_address(u32 item_offset)
+{
+	return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
+}
+
+struct ath10k_bmi {
+	bool done_sent;
+};
+
+struct ath10k_wmi {
+	enum ath10k_htc_ep_id eid;
+	struct completion service_ready;
+	struct completion unified_ready;
+	atomic_t pending_tx_count;
+	wait_queue_head_t wq;
+
+	struct sk_buff_head wmi_event_list;
+	struct work_struct wmi_event_work;
+};
+
+struct ath10k_peer_stat {
+	u8 peer_macaddr[ETH_ALEN];
+	u32 peer_rssi;
+	u32 peer_tx_rate;
+};
+
+struct ath10k_target_stats {
+	/* PDEV stats */
+	s32 ch_noise_floor;
+	u32 tx_frame_count;
+	u32 rx_frame_count;
+	u32 rx_clear_count;
+	u32 cycle_count;
+	u32 phy_err_count;
+	u32 chan_tx_power;
+
+	/* PDEV TX stats */
+	s32 comp_queued;
+	s32 comp_delivered;
+	s32 msdu_enqued;
+	s32 mpdu_enqued;
+	s32 wmm_drop;
+	s32 local_enqued;
+	s32 local_freed;
+	s32 hw_queued;
+	s32 hw_reaped;
+	s32 underrun;
+	s32 tx_abort;
+	s32 mpdus_requed;
+	u32 tx_ko;
+	u32 data_rc;
+	u32 self_triggers;
+	u32 sw_retry_failure;
+	u32 illgl_rate_phy_err;
+	u32 pdev_cont_xretry;
+	u32 pdev_tx_timeout;
+	u32 pdev_resets;
+	u32 phy_underrun;
+	u32 txop_ovf;
+
+	/* PDEV RX stats */
+	s32 mid_ppdu_route_change;
+	s32 status_rcvd;
+	s32 r0_frags;
+	s32 r1_frags;
+	s32 r2_frags;
+	s32 r3_frags;
+	s32 htt_msdus;
+	s32 htt_mpdus;
+	s32 loc_msdus;
+	s32 loc_mpdus;
+	s32 oversize_amsdu;
+	s32 phy_errs;
+	s32 phy_err_drop;
+	s32 mpdu_errs;
+
+	/* VDEV STATS */
+
+	/* PEER STATS */
+	u8 peers;
+	struct ath10k_peer_stat peer_stat[TARGET_NUM_PEERS];
+
+	/* TODO: Beacon filter stats */
+
+};
+
+#define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
+
+struct ath10k_peer {
+	struct list_head list;
+	int vdev_id;
+	u8 addr[ETH_ALEN];
+	DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
+	struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
+};
+
+#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
+
+struct ath10k_vif {
+	u32 vdev_id;
+	enum wmi_vdev_type vdev_type;
+	enum wmi_vdev_subtype vdev_subtype;
+	u32 beacon_interval;
+	u32 dtim_period;
+
+	struct ath10k *ar;
+	struct ieee80211_vif *vif;
+
+	struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
+	u8 def_wep_key_index;
+
+	u16 tx_seq_no;
+
+	union {
+		struct {
+			u8 bssid[ETH_ALEN];
+			u32 uapsd;
+		} sta;
+		struct {
+			/* 127 stations; wmi limit */
+			u8 tim_bitmap[16];
+			u8 tim_len;
+			u32 ssid_len;
+			u8 ssid[IEEE80211_MAX_SSID_LEN];
+			bool hidden_ssid;
+			/* P2P_IE with NoA attribute for P2P_GO case */
+			u32 noa_len;
+			u8 *noa_data;
+		} ap;
+		struct {
+			u8 bssid[ETH_ALEN];
+		} ibss;
+	} u;
+};
+
+struct ath10k_vif_iter {
+	u32 vdev_id;
+	struct ath10k_vif *arvif;
+};
+
+struct ath10k_debug {
+	struct dentry *debugfs_phy;
+
+	struct ath10k_target_stats target_stats;
+	u32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
+
+	struct completion event_stats_compl;
+};
+
+struct ath10k {
+	struct ath_common ath_common;
+	struct ieee80211_hw *hw;
+	struct device *dev;
+	u8 mac_addr[ETH_ALEN];
+
+	u32 target_version;
+	u8 fw_version_major;
+	u32 fw_version_minor;
+	u16 fw_version_release;
+	u16 fw_version_build;
+	u32 phy_capability;
+	u32 hw_min_tx_power;
+	u32 hw_max_tx_power;
+	u32 ht_cap_info;
+	u32 vht_cap_info;
+
+	struct targetdef *targetdef;
+	struct hostdef *hostdef;
+
+	bool p2p;
+
+	struct {
+		void *priv;
+		enum ath10k_bus bus;
+		const struct ath10k_hif_ops *ops;
+	} hif;
+
+	struct ath10k_wmi wmi;
+
+	wait_queue_head_t event_queue;
+	bool is_target_paused;
+
+	struct ath10k_bmi bmi;
+
+	struct ath10k_htc *htc;
+	struct ath10k_htt *htt;
+
+	struct ath10k_hw_params {
+		u32 id;
+		const char *name;
+		u32 patch_load_addr;
+
+		struct ath10k_hw_params_fw {
+			const char *dir;
+			const char *fw;
+			const char *otp;
+			const char *board;
+		} fw;
+	} hw_params;
+
+	struct {
+		struct completion started;
+		struct completion completed;
+		struct completion on_channel;
+		struct timer_list timeout;
+		bool is_roc;
+		bool in_progress;
+		bool aborting;
+		int vdev_id;
+		int roc_freq;
+	} scan;
+
+	struct {
+		struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
+	} mac;
+
+	/* should never be NULL; needed for regular htt rx */
+	struct ieee80211_channel *rx_channel;
+
+	/* valid during scan; needed for mgmt rx during scan */
+	struct ieee80211_channel *scan_channel;
+
+	int free_vdev_map;
+	int monitor_vdev_id;
+	bool monitor_enabled;
+	bool monitor_present;
+	unsigned int filter_flags;
+
+	struct wmi_pdev_set_wmm_params_arg wmm_params;
+	struct completion install_key_done;
+
+	struct completion vdev_setup_done;
+
+	struct workqueue_struct *workqueue;
+
+	/* prevents concurrent FW reconfiguration */
+	struct mutex conf_mutex;
+
+	/* protects shared structure data */
+	spinlock_t data_lock;
+
+	struct list_head peers;
+	wait_queue_head_t peer_mapping_wq;
+
+	struct work_struct offchan_tx_work;
+	struct sk_buff_head offchan_tx_queue;
+	struct completion offchan_tx_completed;
+	struct sk_buff *offchan_tx_skb;
+
+#ifdef CONFIG_ATH10K_DEBUGFS
+	struct ath10k_debug debug;
+#endif
+};
+
+struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
+				  enum ath10k_bus bus,
+				  const struct ath10k_hif_ops *hif_ops);
+void ath10k_core_destroy(struct ath10k *ar);
+
+int ath10k_core_register(struct ath10k *ar);
+void ath10k_core_unregister(struct ath10k *ar);
+
+int ath10k_core_target_suspend(struct ath10k *ar);
+int ath10k_core_target_resume(struct ath10k *ar);
+
+#endif /* _CORE_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
new file mode 100644
index 0000000..499034b
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -0,0 +1,503 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/debugfs.h>
+
+#include "core.h"
+#include "debug.h"
+
+static int ath10k_printk(const char *level, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	int rtn;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	rtn = printk("%sath10k: %pV", level, &vaf);
+
+	va_end(args);
+
+	return rtn;
+}
+
+int ath10k_info(const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
+	trace_ath10k_log_info(&vaf);
+	va_end(args);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_info);
+
+int ath10k_err(const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
+	trace_ath10k_log_err(&vaf);
+	va_end(args);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_err);
+
+int ath10k_warn(const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+	int ret = 0;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+
+	if (net_ratelimit())
+		ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);
+
+	trace_ath10k_log_warn(&vaf);
+
+	va_end(args);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_warn);
+
+#ifdef CONFIG_ATH10K_DEBUGFS
+
+void ath10k_debug_read_service_map(struct ath10k *ar,
+				   void *service_map,
+				   size_t map_size)
+{
+	memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
+}
+
+static ssize_t ath10k_read_wmi_services(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct ath10k *ar = file->private_data;
+	char *buf;
+	unsigned int len = 0, buf_len = 1500;
+	const char *status;
+	ssize_t ret_cnt;
+	int i;
+
+	buf = kzalloc(buf_len, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (len > buf_len)
+		len = buf_len;
+
+	for (i = 0; i < WMI_SERVICE_LAST; i++) {
+		if (WMI_SERVICE_IS_ENABLED(ar->debug.wmi_service_bitmap, i))
+			status = "enabled";
+		else
+			status = "disabled";
+
+		len += scnprintf(buf + len, buf_len - len,
+				 "0x%02x - %20s - %s\n",
+				 i, wmi_service_name(i), status);
+	}
+
+	ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+
+	mutex_unlock(&ar->conf_mutex);
+
+	kfree(buf);
+	return ret_cnt;
+}
+
+static const struct file_operations fops_wmi_services = {
+	.read = ath10k_read_wmi_services,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+void ath10k_debug_read_target_stats(struct ath10k *ar,
+				    struct wmi_stats_event *ev)
+{
+	u8 *tmp = ev->data;
+	struct ath10k_target_stats *stats;
+	int num_pdev_stats, num_vdev_stats, num_peer_stats;
+	struct wmi_pdev_stats *ps;
+	int i;
+
+	mutex_lock(&ar->conf_mutex);
+
+	stats = &ar->debug.target_stats;
+
+	num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
+	num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
+	num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */
+
+	if (num_pdev_stats) {
+		ps = (struct wmi_pdev_stats *)tmp;
+
+		stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
+		stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
+		stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
+		stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);
+		stats->cycle_count = __le32_to_cpu(ps->cycle_count);
+		stats->phy_err_count = __le32_to_cpu(ps->phy_err_count);
+		stats->chan_tx_power = __le32_to_cpu(ps->chan_tx_pwr);
+
+		stats->comp_queued = __le32_to_cpu(ps->wal.tx.comp_queued);
+		stats->comp_delivered =
+			__le32_to_cpu(ps->wal.tx.comp_delivered);
+		stats->msdu_enqued = __le32_to_cpu(ps->wal.tx.msdu_enqued);
+		stats->mpdu_enqued = __le32_to_cpu(ps->wal.tx.mpdu_enqued);
+		stats->wmm_drop = __le32_to_cpu(ps->wal.tx.wmm_drop);
+		stats->local_enqued = __le32_to_cpu(ps->wal.tx.local_enqued);
+		stats->local_freed = __le32_to_cpu(ps->wal.tx.local_freed);
+		stats->hw_queued = __le32_to_cpu(ps->wal.tx.hw_queued);
+		stats->hw_reaped = __le32_to_cpu(ps->wal.tx.hw_reaped);
+		stats->underrun = __le32_to_cpu(ps->wal.tx.underrun);
+		stats->tx_abort = __le32_to_cpu(ps->wal.tx.tx_abort);
+		stats->mpdus_requed = __le32_to_cpu(ps->wal.tx.mpdus_requed);
+		stats->tx_ko = __le32_to_cpu(ps->wal.tx.tx_ko);
+		stats->data_rc = __le32_to_cpu(ps->wal.tx.data_rc);
+		stats->self_triggers = __le32_to_cpu(ps->wal.tx.self_triggers);
+		stats->sw_retry_failure =
+			__le32_to_cpu(ps->wal.tx.sw_retry_failure);
+		stats->illgl_rate_phy_err =
+			__le32_to_cpu(ps->wal.tx.illgl_rate_phy_err);
+		stats->pdev_cont_xretry =
+			__le32_to_cpu(ps->wal.tx.pdev_cont_xretry);
+		stats->pdev_tx_timeout =
+			__le32_to_cpu(ps->wal.tx.pdev_tx_timeout);
+		stats->pdev_resets = __le32_to_cpu(ps->wal.tx.pdev_resets);
+		stats->phy_underrun = __le32_to_cpu(ps->wal.tx.phy_underrun);
+		stats->txop_ovf = __le32_to_cpu(ps->wal.tx.txop_ovf);
+
+		stats->mid_ppdu_route_change =
+			__le32_to_cpu(ps->wal.rx.mid_ppdu_route_change);
+		stats->status_rcvd = __le32_to_cpu(ps->wal.rx.status_rcvd);
+		stats->r0_frags = __le32_to_cpu(ps->wal.rx.r0_frags);
+		stats->r1_frags = __le32_to_cpu(ps->wal.rx.r1_frags);
+		stats->r2_frags = __le32_to_cpu(ps->wal.rx.r2_frags);
+		stats->r3_frags = __le32_to_cpu(ps->wal.rx.r3_frags);
+		stats->htt_msdus = __le32_to_cpu(ps->wal.rx.htt_msdus);
+		stats->htt_mpdus = __le32_to_cpu(ps->wal.rx.htt_mpdus);
+		stats->loc_msdus = __le32_to_cpu(ps->wal.rx.loc_msdus);
+		stats->loc_mpdus = __le32_to_cpu(ps->wal.rx.loc_mpdus);
+		stats->oversize_amsdu =
+			__le32_to_cpu(ps->wal.rx.oversize_amsdu);
+		stats->phy_errs = __le32_to_cpu(ps->wal.rx.phy_errs);
+		stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
+		stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);
+
+		tmp += sizeof(struct wmi_pdev_stats);
+	}
+
+	/* 0 or max vdevs */
+	/* Currently firmware does not support VDEV stats */
+	if (num_vdev_stats) {
+		struct wmi_vdev_stats *vdev_stats;
+
+		for (i = 0; i < num_vdev_stats; i++) {
+			vdev_stats = (struct wmi_vdev_stats *)tmp;
+			tmp += sizeof(struct wmi_vdev_stats);
+		}
+	}
+
+	if (num_peer_stats) {
+		struct wmi_peer_stats *peer_stats;
+		struct ath10k_peer_stat *s;
+
+		stats->peers = num_peer_stats;
+
+		for (i = 0; i < num_peer_stats; i++) {
+			peer_stats = (struct wmi_peer_stats *)tmp;
+			s = &stats->peer_stat[i];
+
+			WMI_MAC_ADDR_TO_CHAR_ARRAY(&peer_stats->peer_macaddr,
+						   s->peer_macaddr);
+			s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
+			s->peer_tx_rate =
+				__le32_to_cpu(peer_stats->peer_tx_rate);
+
+			tmp += sizeof(struct wmi_peer_stats);
+		}
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+	complete(&ar->debug.event_stats_compl);
+}
+
+static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct ath10k *ar = file->private_data;
+	struct ath10k_target_stats *fw_stats;
+	char *buf;
+	unsigned int len = 0, buf_len = 2500;
+	ssize_t ret_cnt;
+	long left;
+	int i;
+	int ret;
+
+	fw_stats = &ar->debug.target_stats;
+
+	buf = kzalloc(buf_len, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
+	if (ret) {
+		ath10k_warn("could not request stats (%d)\n", ret);
+		kfree(buf);
+		return -EIO;
+	}
+
+	left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
+
+	if (left <= 0) {
+		kfree(buf);
+		return -ETIMEDOUT;
+	}
+
+	mutex_lock(&ar->conf_mutex);
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n",
+			 "ath10k PDEV stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
+				 "=================");
+
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Channel noise floor", fw_stats->ch_noise_floor);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "Channel TX power", fw_stats->chan_tx_power);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "TX frame count", fw_stats->tx_frame_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "RX frame count", fw_stats->rx_frame_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "RX clear count", fw_stats->rx_clear_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "Cycle count", fw_stats->cycle_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "PHY error count", fw_stats->phy_err_count);
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n",
+			 "ath10k PDEV TX stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
+				 "=================");
+
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "HTT cookies queued", fw_stats->comp_queued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "HTT cookies disp.", fw_stats->comp_delivered);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MSDU queued", fw_stats->msdu_enqued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDU queued", fw_stats->mpdu_enqued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MSDUs dropped", fw_stats->wmm_drop);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Local enqued", fw_stats->local_enqued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Local freed", fw_stats->local_freed);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "HW queued", fw_stats->hw_queued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PPDUs reaped", fw_stats->hw_reaped);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Num underruns", fw_stats->underrun);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PPDUs cleaned", fw_stats->tx_abort);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDUs requed", fw_stats->mpdus_requed);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Excessive retries", fw_stats->tx_ko);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "HW rate", fw_stats->data_rc);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Sched self tiggers", fw_stats->self_triggers);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Dropped due to SW retries",
+			 fw_stats->sw_retry_failure);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Illegal rate phy errors",
+			 fw_stats->illgl_rate_phy_err);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Pdev continous xretry", fw_stats->pdev_cont_xretry);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "TX timeout", fw_stats->pdev_tx_timeout);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PDEV resets", fw_stats->pdev_resets);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PHY underrun", fw_stats->phy_underrun);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDU is more than txop limit", fw_stats->txop_ovf);
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n",
+			 "ath10k PDEV RX stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
+				 "=================");
+
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Mid PPDU route change",
+			 fw_stats->mid_ppdu_route_change);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Tot. number of statuses", fw_stats->status_rcvd);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Extra frags on rings 0", fw_stats->r0_frags);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Extra frags on rings 1", fw_stats->r1_frags);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Extra frags on rings 2", fw_stats->r2_frags);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Extra frags on rings 3", fw_stats->r3_frags);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MSDUs delivered to HTT", fw_stats->htt_msdus);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDUs delivered to HTT", fw_stats->htt_mpdus);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MSDUs delivered to stack", fw_stats->loc_msdus);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDUs delivered to stack", fw_stats->loc_mpdus);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Oversized AMSUs", fw_stats->oversize_amsdu);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PHY errors", fw_stats->phy_errs);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PHY errors drops", fw_stats->phy_err_drop);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n",
+			 "ath10k PEER stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
+				 "=================");
+
+	for (i = 0; i < fw_stats->peers; i++) {
+		len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
+				 "Peer MAC address",
+				 fw_stats->peer_stat[i].peer_macaddr);
+		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
+				 "Peer RSSI", fw_stats->peer_stat[i].peer_rssi);
+		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
+				 "Peer TX rate",
+				 fw_stats->peer_stat[i].peer_tx_rate);
+		len += scnprintf(buf + len, buf_len - len, "\n");
+	}
+
+	if (len > buf_len)
+		len = buf_len;
+
+	ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+
+	mutex_unlock(&ar->conf_mutex);
+
+	kfree(buf);
+	return ret_cnt;
+}
+
+static const struct file_operations fops_fw_stats = {
+	.read = ath10k_read_fw_stats,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+int ath10k_debug_create(struct ath10k *ar)
+{
+	ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
+						   ar->hw->wiphy->debugfsdir);
+
+	if (!ar->debug.debugfs_phy)
+		return -ENOMEM;
+
+	init_completion(&ar->debug.event_stats_compl);
+
+	debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
+			    &fops_fw_stats);
+
+	debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
+			    &fops_wmi_services);
+
+	return 0;
+}
+#endif /* CONFIG_ATH10K_DEBUGFS */
+
+#ifdef CONFIG_ATH10K_DEBUG
+void ath10k_dbg(enum ath10k_debug_mask mask, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	if (ath10k_debug_mask & mask)
+		ath10k_printk(KERN_DEBUG, "%pV", &vaf);
+
+	trace_ath10k_log_dbg(mask, &vaf);
+
+	va_end(args);
+}
+EXPORT_SYMBOL(ath10k_dbg);
+
+void ath10k_dbg_dump(enum ath10k_debug_mask mask,
+		     const char *msg, const char *prefix,
+		     const void *buf, size_t len)
+{
+	if (ath10k_debug_mask & mask) {
+		if (msg)
+			ath10k_dbg(mask, "%s\n", msg);
+
+		print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
+	}
+
+	/* tracing code doesn't like null strings :/ */
+	trace_ath10k_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
+				  buf, len);
+}
+EXPORT_SYMBOL(ath10k_dbg_dump);
+
+#endif /* CONFIG_ATH10K_DEBUG */
diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
new file mode 100644
index 0000000..168140c
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _DEBUG_H_
+#define _DEBUG_H_
+
+#include <linux/types.h>
+#include "trace.h"
+
+enum ath10k_debug_mask {
+	ATH10K_DBG_PCI		= 0x00000001,
+	ATH10K_DBG_WMI		= 0x00000002,
+	ATH10K_DBG_HTC		= 0x00000004,
+	ATH10K_DBG_HTT		= 0x00000008,
+	ATH10K_DBG_MAC		= 0x00000010,
+	ATH10K_DBG_CORE		= 0x00000020,
+	ATH10K_DBG_PCI_DUMP	= 0x00000040,
+	ATH10K_DBG_HTT_DUMP	= 0x00000080,
+	ATH10K_DBG_MGMT		= 0x00000100,
+	ATH10K_DBG_DATA		= 0x00000200,
+	ATH10K_DBG_ANY		= 0xffffffff,
+};
+
+extern unsigned int ath10k_debug_mask;
+
+extern __printf(1, 2) int ath10k_info(const char *fmt, ...);
+extern __printf(1, 2) int ath10k_err(const char *fmt, ...);
+extern __printf(1, 2) int ath10k_warn(const char *fmt, ...);
+
+#ifdef CONFIG_ATH10K_DEBUGFS
+int ath10k_debug_create(struct ath10k *ar);
+void ath10k_debug_read_service_map(struct ath10k *ar,
+				   void *service_map,
+				   size_t map_size);
+void ath10k_debug_read_target_stats(struct ath10k *ar,
+				    struct wmi_stats_event *ev);
+
+#else
+static inline int ath10k_debug_create(struct ath10k *ar)
+{
+	return 0;
+}
+
+static inline void ath10k_debug_read_service_map(struct ath10k *ar,
+						 void *service_map,
+						 size_t map_size)
+{
+}
+
+static inline void ath10k_debug_read_target_stats(struct ath10k *ar,
+						  struct wmi_stats_event *ev)
+{
+}
+#endif /* CONFIG_ATH10K_DEBUGFS */
+
+#ifdef CONFIG_ATH10K_DEBUG
+extern __printf(2, 3) void ath10k_dbg(enum ath10k_debug_mask mask,
+				      const char *fmt, ...);
+void ath10k_dbg_dump(enum ath10k_debug_mask mask,
+		     const char *msg, const char *prefix,
+		     const void *buf, size_t len);
+#else /* CONFIG_ATH10K_DEBUG */
+
+static inline int ath10k_dbg(enum ath10k_debug_mask dbg_mask,
+			     const char *fmt, ...)
+{
+	return 0;
+}
+
+static inline void ath10k_dbg_dump(enum ath10k_debug_mask mask,
+				   const char *msg, const char *prefix,
+				   const void *buf, size_t len)
+{
+}
+#endif /* CONFIG_ATH10K_DEBUG */
+#endif /* _DEBUG_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/hif.h b/drivers/net/wireless/ath/ath10k/hif.h
new file mode 100644
index 0000000..73a24d4
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/hif.h
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HIF_H_
+#define _HIF_H_
+
+#include <linux/kernel.h>
+#include "core.h"
+
+struct ath10k_hif_cb {
+	int (*tx_completion)(struct ath10k *ar,
+			     struct sk_buff *wbuf,
+			     unsigned transfer_id);
+	int (*rx_completion)(struct ath10k *ar,
+			     struct sk_buff *wbuf,
+			     u8 pipe_id);
+};
+
+struct ath10k_hif_ops {
+	/* Send the head of a buffer to HIF for transmission to the target. */
+	int (*send_head)(struct ath10k *ar, u8 pipe_id,
+			 unsigned int transfer_id,
+			 unsigned int nbytes,
+			 struct sk_buff *buf);
+
+	/*
+	 * API to handle HIF-specific BMI message exchanges, this API is
+	 * synchronous and only allowed to be called from a context that
+	 * can block (sleep)
+	 */
+	int (*exchange_bmi_msg)(struct ath10k *ar,
+				void *request, u32 request_len,
+				void *response, u32 *response_len);
+
+	int (*start)(struct ath10k *ar);
+
+	void (*stop)(struct ath10k *ar);
+
+	int (*map_service_to_pipe)(struct ath10k *ar, u16 service_id,
+				   u8 *ul_pipe, u8 *dl_pipe,
+				   int *ul_is_polled, int *dl_is_polled);
+
+	void (*get_default_pipe)(struct ath10k *ar, u8 *ul_pipe, u8 *dl_pipe);
+
+	/*
+	 * Check if prior sends have completed.
+	 *
+	 * Check whether the pipe in question has any completed
+	 * sends that have not yet been processed.
+	 * This function is only relevant for HIF pipes that are configured
+	 * to be polled rather than interrupt-driven.
+	 */
+	void (*send_complete_check)(struct ath10k *ar, u8 pipe_id, int force);
+
+	void (*init)(struct ath10k *ar,
+		     struct ath10k_hif_cb *callbacks);
+
+	u16 (*get_free_queue_number)(struct ath10k *ar, u8 pipe_id);
+};
+
+
+static inline int ath10k_hif_send_head(struct ath10k *ar, u8 pipe_id,
+				       unsigned int transfer_id,
+				       unsigned int nbytes,
+				       struct sk_buff *buf)
+{
+	return ar->hif.ops->send_head(ar, pipe_id, transfer_id, nbytes, buf);
+}
+
+static inline int ath10k_hif_exchange_bmi_msg(struct ath10k *ar,
+					      void *request, u32 request_len,
+					      void *response, u32 *response_len)
+{
+	return ar->hif.ops->exchange_bmi_msg(ar, request, request_len,
+					     response, response_len);
+}
+
+static inline int ath10k_hif_start(struct ath10k *ar)
+{
+	return ar->hif.ops->start(ar);
+}
+
+static inline void ath10k_hif_stop(struct ath10k *ar)
+{
+	return ar->hif.ops->stop(ar);
+}
+
+static inline int ath10k_hif_map_service_to_pipe(struct ath10k *ar,
+						 u16 service_id,
+						 u8 *ul_pipe, u8 *dl_pipe,
+						 int *ul_is_polled,
+						 int *dl_is_polled)
+{
+	return ar->hif.ops->map_service_to_pipe(ar, service_id,
+						ul_pipe, dl_pipe,
+						ul_is_polled, dl_is_polled);
+}
+
+static inline void ath10k_hif_get_default_pipe(struct ath10k *ar,
+					       u8 *ul_pipe, u8 *dl_pipe)
+{
+	ar->hif.ops->get_default_pipe(ar, ul_pipe, dl_pipe);
+}
+
+static inline void ath10k_hif_send_complete_check(struct ath10k *ar,
+						  u8 pipe_id, int force)
+{
+	ar->hif.ops->send_complete_check(ar, pipe_id, force);
+}
+
+static inline void ath10k_hif_init(struct ath10k *ar,
+				   struct ath10k_hif_cb *callbacks)
+{
+	ar->hif.ops->init(ar, callbacks);
+}
+
+static inline u16 ath10k_hif_get_free_queue_number(struct ath10k *ar,
+						   u8 pipe_id)
+{
+	return ar->hif.ops->get_free_queue_number(ar, pipe_id);
+}
+
+#endif /* _HIF_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
new file mode 100644
index 0000000..74363c9
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -0,0 +1,1000 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "core.h"
+#include "hif.h"
+#include "debug.h"
+
+/********/
+/* Send */
+/********/
+
+static inline void ath10k_htc_send_complete_check(struct ath10k_htc_ep *ep,
+						  int force)
+{
+	/*
+	 * Check whether HIF has any prior sends that have finished,
+	 * have not had the post-processing done.
+	 */
+	ath10k_hif_send_complete_check(ep->htc->ar, ep->ul_pipe_id, force);
+}
+
+static void ath10k_htc_control_tx_complete(struct ath10k *ar,
+					   struct sk_buff *skb)
+{
+	kfree_skb(skb);
+}
+
+static struct sk_buff *ath10k_htc_build_tx_ctrl_skb(void *ar)
+{
+	struct sk_buff *skb;
+	struct ath10k_skb_cb *skb_cb;
+
+	skb = dev_alloc_skb(ATH10K_HTC_CONTROL_BUFFER_SIZE);
+	if (!skb) {
+		ath10k_warn("Unable to allocate ctrl skb\n");
+		return NULL;
+	}
+
+	skb_reserve(skb, 20); /* FIXME: why 20 bytes? */
+	WARN_ONCE((unsigned long)skb->data & 3, "unaligned skb");
+
+	skb_cb = ATH10K_SKB_CB(skb);
+	memset(skb_cb, 0, sizeof(*skb_cb));
+
+	ath10k_dbg(ATH10K_DBG_HTC, "%s: skb %p\n", __func__, skb);
+	return skb;
+}
+
+static inline void ath10k_htc_restore_tx_skb(struct ath10k_htc *htc,
+					     struct sk_buff *skb)
+{
+	ath10k_skb_unmap(htc->ar->dev, skb);
+	skb_pull(skb, sizeof(struct ath10k_htc_hdr));
+}
+
+static void ath10k_htc_notify_tx_completion(struct ath10k_htc_ep *ep,
+					    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_HTC, "%s: ep %d skb %p\n", __func__,
+		   ep->eid, skb);
+
+	ath10k_htc_restore_tx_skb(ep->htc, skb);
+
+	if (!ep->ep_ops.ep_tx_complete) {
+		ath10k_warn("no tx handler for eid %d\n", ep->eid);
+		dev_kfree_skb_any(skb);
+		return;
+	}
+
+	ep->ep_ops.ep_tx_complete(ep->htc->ar, skb);
+}
+
+/* assumes tx_lock is held */
+static bool ath10k_htc_ep_need_credit_update(struct ath10k_htc_ep *ep)
+{
+	if (!ep->tx_credit_flow_enabled)
+		return false;
+	if (ep->tx_credits >= ep->tx_credits_per_max_message)
+		return false;
+
+	ath10k_dbg(ATH10K_DBG_HTC, "HTC: endpoint %d needs credit update\n",
+		   ep->eid);
+	return true;
+}
+
+static void ath10k_htc_prepare_tx_skb(struct ath10k_htc_ep *ep,
+				      struct sk_buff *skb)
+{
+	struct ath10k_htc_hdr *hdr;
+
+	hdr = (struct ath10k_htc_hdr *)skb->data;
+	memset(hdr, 0, sizeof(*hdr));
+
+	hdr->eid = ep->eid;
+	hdr->len = __cpu_to_le16(skb->len - sizeof(*hdr));
+
+	spin_lock_bh(&ep->htc->tx_lock);
+	hdr->seq_no = ep->seq_no++;
+
+	if (ath10k_htc_ep_need_credit_update(ep))
+		hdr->flags |= ATH10K_HTC_FLAG_NEED_CREDIT_UPDATE;
+
+	spin_unlock_bh(&ep->htc->tx_lock);
+}
+
+static int ath10k_htc_issue_skb(struct ath10k_htc *htc,
+				struct ath10k_htc_ep *ep,
+				struct sk_buff *skb,
+				u8 credits)
+{
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
+	int ret;
+
+	ath10k_dbg(ATH10K_DBG_HTC, "%s: ep %d skb %p\n", __func__,
+		   ep->eid, skb);
+
+	ath10k_htc_prepare_tx_skb(ep, skb);
+
+	ret = ath10k_skb_map(htc->ar->dev, skb);
+	if (ret)
+		goto err;
+
+	ret = ath10k_hif_send_head(htc->ar,
+				   ep->ul_pipe_id,
+				   ep->eid,
+				   skb->len,
+				   skb);
+	if (unlikely(ret))
+		goto err;
+
+	return 0;
+err:
+	ath10k_warn("HTC issue failed: %d\n", ret);
+
+	spin_lock_bh(&htc->tx_lock);
+	ep->tx_credits += credits;
+	spin_unlock_bh(&htc->tx_lock);
+
+	/* this is the simplest way to handle out-of-resources for non-credit
+	 * based endpoints. credit based endpoints can still get -ENOSR, but
+	 * this is highly unlikely as credit reservation should prevent that */
+	if (ret == -ENOSR) {
+		spin_lock_bh(&htc->tx_lock);
+		__skb_queue_head(&ep->tx_queue, skb);
+		spin_unlock_bh(&htc->tx_lock);
+
+		return ret;
+	}
+
+	skb_cb->is_aborted = true;
+	ath10k_htc_notify_tx_completion(ep, skb);
+
+	return ret;
+}
+
+static struct sk_buff *ath10k_htc_get_skb_credit_based(struct ath10k_htc *htc,
+						       struct ath10k_htc_ep *ep,
+						       u8 *credits)
+{
+	struct sk_buff *skb;
+	struct ath10k_skb_cb *skb_cb;
+	int credits_required;
+	int remainder;
+	unsigned int transfer_len;
+
+	lockdep_assert_held(&htc->tx_lock);
+
+	skb = __skb_dequeue(&ep->tx_queue);
+	if (!skb)
+		return NULL;
+
+	skb_cb = ATH10K_SKB_CB(skb);
+	transfer_len = skb->len;
+
+	if (likely(transfer_len <= htc->target_credit_size)) {
+		credits_required = 1;
+	} else {
+		/* figure out how many credits this message requires */
+		credits_required = transfer_len / htc->target_credit_size;
+		remainder = transfer_len % htc->target_credit_size;
+
+		if (remainder)
+			credits_required++;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTC, "Credits required %d got %d\n",
+		   credits_required, ep->tx_credits);
+
+	if (ep->tx_credits < credits_required) {
+		__skb_queue_head(&ep->tx_queue, skb);
+		return NULL;
+	}
+
+	ep->tx_credits -= credits_required;
+	*credits = credits_required;
+	return skb;
+}
+
+static void ath10k_htc_send_work(struct work_struct *work)
+{
+	struct ath10k_htc_ep *ep = container_of(work,
+					struct ath10k_htc_ep, send_work);
+	struct ath10k_htc *htc = ep->htc;
+	struct sk_buff *skb;
+	u8 credits = 0;
+	int ret;
+
+	while (true) {
+		if (ep->ul_is_polled)
+			ath10k_htc_send_complete_check(ep, 0);
+
+		spin_lock_bh(&htc->tx_lock);
+		if (ep->tx_credit_flow_enabled)
+			skb = ath10k_htc_get_skb_credit_based(htc, ep,
+							      &credits);
+		else
+			skb = __skb_dequeue(&ep->tx_queue);
+		spin_unlock_bh(&htc->tx_lock);
+
+		if (!skb)
+			break;
+
+		ret = ath10k_htc_issue_skb(htc, ep, skb, credits);
+		if (ret == -ENOSR)
+			break;
+	}
+}
+
+int ath10k_htc_send(struct ath10k_htc *htc,
+		    enum ath10k_htc_ep_id eid,
+		    struct sk_buff *skb)
+{
+	struct ath10k_htc_ep *ep = &htc->endpoint[eid];
+
+	if (eid >= ATH10K_HTC_EP_COUNT) {
+		ath10k_warn("Invalid endpoint id: %d\n", eid);
+		return -ENOENT;
+	}
+
+	skb_push(skb, sizeof(struct ath10k_htc_hdr));
+
+	spin_lock_bh(&htc->tx_lock);
+	__skb_queue_tail(&ep->tx_queue, skb);
+	spin_unlock_bh(&htc->tx_lock);
+
+	queue_work(htc->ar->workqueue, &ep->send_work);
+	return 0;
+}
+
+static int ath10k_htc_tx_completion_handler(struct ath10k *ar,
+					    struct sk_buff *skb,
+					    unsigned int eid)
+{
+	struct ath10k_htc *htc = ar->htc;
+	struct ath10k_htc_ep *ep = &htc->endpoint[eid];
+	bool stopping;
+
+	ath10k_htc_notify_tx_completion(ep, skb);
+	/* the skb now belongs to the completion handler */
+
+	spin_lock_bh(&htc->tx_lock);
+	stopping = htc->stopping;
+	spin_unlock_bh(&htc->tx_lock);
+
+	if (!ep->tx_credit_flow_enabled && !stopping)
+		/*
+		 * note: when using TX credit flow, the re-checking of
+		 * queues happens when credits flow back from the target.
+		 * in the non-TX credit case, we recheck after the packet
+		 * completes
+		 */
+		queue_work(ar->workqueue, &ep->send_work);
+
+	return 0;
+}
+
+/* flush endpoint TX queue */
+static void ath10k_htc_flush_endpoint_tx(struct ath10k_htc *htc,
+					 struct ath10k_htc_ep *ep)
+{
+	struct sk_buff *skb;
+	struct ath10k_skb_cb *skb_cb;
+
+	spin_lock_bh(&htc->tx_lock);
+	for (;;) {
+		skb = __skb_dequeue(&ep->tx_queue);
+		if (!skb)
+			break;
+
+		skb_cb = ATH10K_SKB_CB(skb);
+		skb_cb->is_aborted = true;
+		ath10k_htc_notify_tx_completion(ep, skb);
+	}
+	spin_unlock_bh(&htc->tx_lock);
+
+	cancel_work_sync(&ep->send_work);
+}
+
+/***********/
+/* Receive */
+/***********/
+
+static void
+ath10k_htc_process_credit_report(struct ath10k_htc *htc,
+				 const struct ath10k_htc_credit_report *report,
+				 int len,
+				 enum ath10k_htc_ep_id eid)
+{
+	struct ath10k_htc_ep *ep;
+	int i, n_reports;
+
+	if (len % sizeof(*report))
+		ath10k_warn("Uneven credit report len %d", len);
+
+	n_reports = len / sizeof(*report);
+
+	spin_lock_bh(&htc->tx_lock);
+	for (i = 0; i < n_reports; i++, report++) {
+		if (report->eid >= ATH10K_HTC_EP_COUNT)
+			break;
+
+		ath10k_dbg(ATH10K_DBG_HTC, "ep %d got %d credits\n",
+			   report->eid, report->credits);
+
+		ep = &htc->endpoint[report->eid];
+		ep->tx_credits += report->credits;
+
+		if (ep->tx_credits && !skb_queue_empty(&ep->tx_queue))
+			queue_work(htc->ar->workqueue, &ep->send_work);
+	}
+	spin_unlock_bh(&htc->tx_lock);
+}
+
+static int ath10k_htc_process_trailer(struct ath10k_htc *htc,
+				      u8 *buffer,
+				      int length,
+				      enum ath10k_htc_ep_id src_eid)
+{
+	int status = 0;
+	struct ath10k_htc_record *record;
+	u8 *orig_buffer;
+	int orig_length;
+	size_t len;
+
+	orig_buffer = buffer;
+	orig_length = length;
+
+	while (length > 0) {
+		record = (struct ath10k_htc_record *)buffer;
+
+		if (length < sizeof(record->hdr)) {
+			status = -EINVAL;
+			break;
+		}
+
+		if (record->hdr.len > length) {
+			/* no room left in buffer for record */
+			ath10k_warn("Invalid record length: %d\n",
+				    record->hdr.len);
+			status = -EINVAL;
+			break;
+		}
+
+		switch (record->hdr.id) {
+		case ATH10K_HTC_RECORD_CREDITS:
+			len = sizeof(struct ath10k_htc_credit_report);
+			if (record->hdr.len < len) {
+				ath10k_warn("Credit report too long\n");
+				status = -EINVAL;
+				break;
+			}
+			ath10k_htc_process_credit_report(htc,
+							 record->credit_report,
+							 record->hdr.len,
+							 src_eid);
+			break;
+		default:
+			ath10k_warn("Unhandled record: id:%d length:%d\n",
+				    record->hdr.id, record->hdr.len);
+			break;
+		}
+
+		if (status)
+			break;
+
+		/* multiple records may be present in a trailer */
+		buffer += sizeof(record->hdr) + record->hdr.len;
+		length -= sizeof(record->hdr) + record->hdr.len;
+	}
+
+	if (status)
+		ath10k_dbg_dump(ATH10K_DBG_HTC, "htc rx bad trailer", "",
+				orig_buffer, orig_length);
+
+	return status;
+}
+
+static int ath10k_htc_rx_completion_handler(struct ath10k *ar,
+					    struct sk_buff *skb,
+					    u8 pipe_id)
+{
+	int status = 0;
+	struct ath10k_htc *htc = ar->htc;
+	struct ath10k_htc_hdr *hdr;
+	struct ath10k_htc_ep *ep;
+	u16 payload_len;
+	u32 trailer_len = 0;
+	size_t min_len;
+	u8 eid;
+	bool trailer_present;
+
+	hdr = (struct ath10k_htc_hdr *)skb->data;
+	skb_pull(skb, sizeof(*hdr));
+
+	eid = hdr->eid;
+
+	if (eid >= ATH10K_HTC_EP_COUNT) {
+		ath10k_warn("HTC Rx: invalid eid %d\n", eid);
+		ath10k_dbg_dump(ATH10K_DBG_HTC, "htc bad header", "",
+				hdr, sizeof(*hdr));
+		status = -EINVAL;
+		goto out;
+	}
+
+	ep = &htc->endpoint[eid];
+
+	/*
+	 * If this endpoint that received a message from the target has
+	 * a to-target HIF pipe whose send completions are polled rather
+	 * than interrupt-driven, this is a good point to ask HIF to check
+	 * whether it has any completed sends to handle.
+	 */
+	if (ep->ul_is_polled)
+		ath10k_htc_send_complete_check(ep, 1);
+
+	payload_len = __le16_to_cpu(hdr->len);
+
+	if (payload_len + sizeof(*hdr) > ATH10K_HTC_MAX_LEN) {
+		ath10k_warn("HTC rx frame too long, len: %zu\n",
+			    payload_len + sizeof(*hdr));
+		ath10k_dbg_dump(ATH10K_DBG_HTC, "htc bad rx pkt len", "",
+				hdr, sizeof(*hdr));
+		status = -EINVAL;
+		goto out;
+	}
+
+	if (skb->len < payload_len) {
+		ath10k_dbg(ATH10K_DBG_HTC,
+			   "HTC Rx: insufficient length, got %d, expected %d\n",
+			   skb->len, payload_len);
+		ath10k_dbg_dump(ATH10K_DBG_HTC, "htc bad rx pkt len",
+				"", hdr, sizeof(*hdr));
+		status = -EINVAL;
+		goto out;
+	}
+
+	/* get flags to check for trailer */
+	trailer_present = hdr->flags & ATH10K_HTC_FLAG_TRAILER_PRESENT;
+	if (trailer_present) {
+		u8 *trailer;
+
+		trailer_len = hdr->trailer_len;
+		min_len = sizeof(struct ath10k_ath10k_htc_record_hdr);
+
+		if ((trailer_len < min_len) ||
+		    (trailer_len > payload_len)) {
+			ath10k_warn("Invalid trailer length: %d\n",
+				    trailer_len);
+			status = -EPROTO;
+			goto out;
+		}
+
+		trailer = (u8 *)hdr;
+		trailer += sizeof(*hdr);
+		trailer += payload_len;
+		trailer -= trailer_len;
+		status = ath10k_htc_process_trailer(htc, trailer,
+						    trailer_len, hdr->eid);
+		if (status)
+			goto out;
+
+		skb_trim(skb, skb->len - trailer_len);
+	}
+
+	if (((int)payload_len - (int)trailer_len) <= 0)
+		/* zero length packet with trailer data, just drop these */
+		goto out;
+
+	if (eid == ATH10K_HTC_EP_0) {
+		struct ath10k_htc_msg *msg = (struct ath10k_htc_msg *)skb->data;
+
+		switch (__le16_to_cpu(msg->hdr.message_id)) {
+		default:
+			/* handle HTC control message */
+			if (completion_done(&htc->ctl_resp)) {
+				/*
+				 * this is a fatal error, target should not be
+				 * sending unsolicited messages on the ep 0
+				 */
+				ath10k_warn("HTC rx ctrl still processing\n");
+				status = -EINVAL;
+				complete(&htc->ctl_resp);
+				goto out;
+			}
+
+			htc->control_resp_len =
+				min_t(int, skb->len,
+				      ATH10K_HTC_MAX_CTRL_MSG_LEN);
+
+			memcpy(htc->control_resp_buffer, skb->data,
+			       htc->control_resp_len);
+
+			complete(&htc->ctl_resp);
+			break;
+		case ATH10K_HTC_MSG_SEND_SUSPEND_COMPLETE:
+			htc->htc_ops.target_send_suspend_complete(ar);
+		}
+		goto out;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTC, "htc rx completion ep %d skb %p\n",
+		   eid, skb);
+	ep->ep_ops.ep_rx_complete(ar, skb);
+
+	/* skb is now owned by the rx completion handler */
+	skb = NULL;
+out:
+	kfree_skb(skb);
+
+	return status;
+}
+
+static void ath10k_htc_control_rx_complete(struct ath10k *ar,
+					   struct sk_buff *skb)
+{
+	/* This is unexpected. FW is not supposed to send regular rx on this
+	 * endpoint. */
+	ath10k_warn("unexpected htc rx\n");
+	kfree_skb(skb);
+}
+
+/***************/
+/* Init/Deinit */
+/***************/
+
+static const char *htc_service_name(enum ath10k_htc_svc_id id)
+{
+	switch (id) {
+	case ATH10K_HTC_SVC_ID_RESERVED:
+		return "Reserved";
+	case ATH10K_HTC_SVC_ID_RSVD_CTRL:
+		return "Control";
+	case ATH10K_HTC_SVC_ID_WMI_CONTROL:
+		return "WMI";
+	case ATH10K_HTC_SVC_ID_WMI_DATA_BE:
+		return "DATA BE";
+	case ATH10K_HTC_SVC_ID_WMI_DATA_BK:
+		return "DATA BK";
+	case ATH10K_HTC_SVC_ID_WMI_DATA_VI:
+		return "DATA VI";
+	case ATH10K_HTC_SVC_ID_WMI_DATA_VO:
+		return "DATA VO";
+	case ATH10K_HTC_SVC_ID_NMI_CONTROL:
+		return "NMI Control";
+	case ATH10K_HTC_SVC_ID_NMI_DATA:
+		return "NMI Data";
+	case ATH10K_HTC_SVC_ID_HTT_DATA_MSG:
+		return "HTT Data";
+	case ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS:
+		return "RAW";
+	}
+
+	return "Unknown";
+}
+
+static void ath10k_htc_reset_endpoint_states(struct ath10k_htc *htc)
+{
+	struct ath10k_htc_ep *ep;
+	int i;
+
+	for (i = ATH10K_HTC_EP_0; i < ATH10K_HTC_EP_COUNT; i++) {
+		ep = &htc->endpoint[i];
+		ep->service_id = ATH10K_HTC_SVC_ID_UNUSED;
+		ep->max_ep_message_len = 0;
+		ep->max_tx_queue_depth = 0;
+		ep->eid = i;
+		skb_queue_head_init(&ep->tx_queue);
+		ep->htc = htc;
+		ep->tx_credit_flow_enabled = true;
+		INIT_WORK(&ep->send_work, ath10k_htc_send_work);
+	}
+}
+
+static void ath10k_htc_setup_target_buffer_assignments(struct ath10k_htc *htc)
+{
+	struct ath10k_htc_svc_tx_credits *entry;
+
+	entry = &htc->service_tx_alloc[0];
+
+	/*
+	 * for PCIE allocate all credists/HTC buffers to WMI.
+	 * no buffers are used/required for data. data always
+	 * remains on host.
+	 */
+	entry++;
+	entry->service_id = ATH10K_HTC_SVC_ID_WMI_CONTROL;
+	entry->credit_allocation = htc->total_transmit_credits;
+}
+
+static u8 ath10k_htc_get_credit_allocation(struct ath10k_htc *htc,
+					   u16 service_id)
+{
+	u8 allocation = 0;
+	int i;
+
+	for (i = 0; i < ATH10K_HTC_EP_COUNT; i++) {
+		if (htc->service_tx_alloc[i].service_id == service_id)
+			allocation =
+			    htc->service_tx_alloc[i].credit_allocation;
+	}
+
+	return allocation;
+}
+
+int ath10k_htc_wait_target(struct ath10k_htc *htc)
+{
+	int status = 0;
+	struct ath10k_htc_svc_conn_req conn_req;
+	struct ath10k_htc_svc_conn_resp conn_resp;
+	struct ath10k_htc_msg *msg;
+	u16 message_id;
+	u16 credit_count;
+	u16 credit_size;
+
+	INIT_COMPLETION(htc->ctl_resp);
+
+	status = ath10k_hif_start(htc->ar);
+	if (status) {
+		ath10k_err("could not start HIF (%d)\n", status);
+		goto err_start;
+	}
+
+	status = wait_for_completion_timeout(&htc->ctl_resp,
+					     ATH10K_HTC_WAIT_TIMEOUT_HZ);
+	if (status <= 0) {
+		if (status == 0)
+			status = -ETIMEDOUT;
+
+		ath10k_err("ctl_resp never came in (%d)\n", status);
+		goto err_target;
+	}
+
+	if (htc->control_resp_len < sizeof(msg->hdr) + sizeof(msg->ready)) {
+		ath10k_err("Invalid HTC ready msg len:%d\n",
+			   htc->control_resp_len);
+
+		status = -ECOMM;
+		goto err_target;
+	}
+
+	msg = (struct ath10k_htc_msg *)htc->control_resp_buffer;
+	message_id   = __le16_to_cpu(msg->hdr.message_id);
+	credit_count = __le16_to_cpu(msg->ready.credit_count);
+	credit_size  = __le16_to_cpu(msg->ready.credit_size);
+
+	if (message_id != ATH10K_HTC_MSG_READY_ID) {
+		ath10k_err("Invalid HTC ready msg: 0x%x\n", message_id);
+		status = -ECOMM;
+		goto err_target;
+	}
+
+	htc->total_transmit_credits = credit_count;
+	htc->target_credit_size = credit_size;
+
+	ath10k_dbg(ATH10K_DBG_HTC,
+		   "Target ready! transmit resources: %d size:%d\n",
+		   htc->total_transmit_credits,
+		   htc->target_credit_size);
+
+	if ((htc->total_transmit_credits == 0) ||
+	    (htc->target_credit_size == 0)) {
+		status = -ECOMM;
+		ath10k_err("Invalid credit size received\n");
+		goto err_target;
+	}
+
+	ath10k_htc_setup_target_buffer_assignments(htc);
+
+	/* setup our pseudo HTC control endpoint connection */
+	memset(&conn_req, 0, sizeof(conn_req));
+	memset(&conn_resp, 0, sizeof(conn_resp));
+	conn_req.ep_ops.ep_tx_complete = ath10k_htc_control_tx_complete;
+	conn_req.ep_ops.ep_rx_complete = ath10k_htc_control_rx_complete;
+	conn_req.max_send_queue_depth = ATH10K_NUM_CONTROL_TX_BUFFERS;
+	conn_req.service_id = ATH10K_HTC_SVC_ID_RSVD_CTRL;
+
+	/* connect fake service */
+	status = ath10k_htc_connect_service(htc, &conn_req, &conn_resp);
+	if (status) {
+		ath10k_err("could not connect to htc service (%d)\n", status);
+		goto err_target;
+	}
+
+	return 0;
+err_target:
+	ath10k_hif_stop(htc->ar);
+err_start:
+	return status;
+}
+
+int ath10k_htc_connect_service(struct ath10k_htc *htc,
+			       struct ath10k_htc_svc_conn_req *conn_req,
+			       struct ath10k_htc_svc_conn_resp *conn_resp)
+{
+	struct ath10k_htc_msg *msg;
+	struct ath10k_htc_conn_svc *req_msg;
+	struct ath10k_htc_conn_svc_response resp_msg_dummy;
+	struct ath10k_htc_conn_svc_response *resp_msg = &resp_msg_dummy;
+	enum ath10k_htc_ep_id assigned_eid = ATH10K_HTC_EP_COUNT;
+	struct ath10k_htc_ep *ep;
+	struct sk_buff *skb;
+	unsigned int max_msg_size = 0;
+	int length, status;
+	bool disable_credit_flow_ctrl = false;
+	u16 message_id, service_id, flags = 0;
+	u8 tx_alloc = 0;
+
+	/* special case for HTC pseudo control service */
+	if (conn_req->service_id == ATH10K_HTC_SVC_ID_RSVD_CTRL) {
+		disable_credit_flow_ctrl = true;
+		assigned_eid = ATH10K_HTC_EP_0;
+		max_msg_size = ATH10K_HTC_MAX_CTRL_MSG_LEN;
+		memset(&resp_msg_dummy, 0, sizeof(resp_msg_dummy));
+		goto setup;
+	}
+
+	tx_alloc = ath10k_htc_get_credit_allocation(htc,
+						    conn_req->service_id);
+	if (!tx_alloc)
+		ath10k_warn("HTC Service %s does not allocate target credits\n",
+			    htc_service_name(conn_req->service_id));
+
+	skb = ath10k_htc_build_tx_ctrl_skb(htc->ar);
+	if (!skb) {
+		ath10k_err("Failed to allocate HTC packet\n");
+		return -ENOMEM;
+	}
+
+	length = sizeof(msg->hdr) + sizeof(msg->connect_service);
+	skb_put(skb, length);
+	memset(skb->data, 0, length);
+
+	msg = (struct ath10k_htc_msg *)skb->data;
+	msg->hdr.message_id =
+		__cpu_to_le16(ATH10K_HTC_MSG_CONNECT_SERVICE_ID);
+
+	flags |= SM(tx_alloc, ATH10K_HTC_CONN_FLAGS_RECV_ALLOC);
+
+	req_msg = &msg->connect_service;
+	req_msg->flags = __cpu_to_le16(flags);
+	req_msg->service_id = __cpu_to_le16(conn_req->service_id);
+
+	/* Only enable credit flow control for WMI ctrl service */
+	if (conn_req->service_id != ATH10K_HTC_SVC_ID_WMI_CONTROL) {
+		flags |= ATH10K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL;
+		disable_credit_flow_ctrl = true;
+	}
+
+	INIT_COMPLETION(htc->ctl_resp);
+
+	status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb);
+	if (status) {
+		kfree_skb(skb);
+		return status;
+	}
+
+	/* wait for response */
+	status = wait_for_completion_timeout(&htc->ctl_resp,
+					     ATH10K_HTC_CONN_SVC_TIMEOUT_HZ);
+	if (status <= 0) {
+		if (status == 0)
+			status = -ETIMEDOUT;
+		ath10k_err("Service connect timeout: %d\n", status);
+		return status;
+	}
+
+	/* we controlled the buffer creation, it's aligned */
+	msg = (struct ath10k_htc_msg *)htc->control_resp_buffer;
+	resp_msg = &msg->connect_service_response;
+	message_id = __le16_to_cpu(msg->hdr.message_id);
+	service_id = __le16_to_cpu(resp_msg->service_id);
+
+	if ((message_id != ATH10K_HTC_MSG_CONNECT_SERVICE_RESP_ID) ||
+	    (htc->control_resp_len < sizeof(msg->hdr) +
+	     sizeof(msg->connect_service_response))) {
+		ath10k_err("Invalid resp message ID 0x%x", message_id);
+		return -EPROTO;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTC,
+		   "HTC Service %s connect response: status: 0x%x, assigned ep: 0x%x\n",
+		   htc_service_name(service_id),
+		   resp_msg->status, resp_msg->eid);
+
+	conn_resp->connect_resp_code = resp_msg->status;
+
+	/* check response status */
+	if (resp_msg->status != ATH10K_HTC_CONN_SVC_STATUS_SUCCESS) {
+		ath10k_err("HTC Service %s connect request failed: 0x%x)\n",
+			   htc_service_name(service_id),
+			   resp_msg->status);
+		return -EPROTO;
+	}
+
+	assigned_eid = (enum ath10k_htc_ep_id)resp_msg->eid;
+	max_msg_size = __le16_to_cpu(resp_msg->max_msg_size);
+
+setup:
+
+	if (assigned_eid >= ATH10K_HTC_EP_COUNT)
+		return -EPROTO;
+
+	if (max_msg_size == 0)
+		return -EPROTO;
+
+	ep = &htc->endpoint[assigned_eid];
+	ep->eid = assigned_eid;
+
+	if (ep->service_id != ATH10K_HTC_SVC_ID_UNUSED)
+		return -EPROTO;
+
+	/* return assigned endpoint to caller */
+	conn_resp->eid = assigned_eid;
+	conn_resp->max_msg_len = __le16_to_cpu(resp_msg->max_msg_size);
+
+	/* setup the endpoint */
+	ep->service_id = conn_req->service_id;
+	ep->max_tx_queue_depth = conn_req->max_send_queue_depth;
+	ep->max_ep_message_len = __le16_to_cpu(resp_msg->max_msg_size);
+	ep->tx_credits = tx_alloc;
+	ep->tx_credit_size = htc->target_credit_size;
+	ep->tx_credits_per_max_message = ep->max_ep_message_len /
+					 htc->target_credit_size;
+
+	if (ep->max_ep_message_len % htc->target_credit_size)
+		ep->tx_credits_per_max_message++;
+
+	/* copy all the callbacks */
+	ep->ep_ops = conn_req->ep_ops;
+
+	status = ath10k_hif_map_service_to_pipe(htc->ar,
+						ep->service_id,
+						&ep->ul_pipe_id,
+						&ep->dl_pipe_id,
+						&ep->ul_is_polled,
+						&ep->dl_is_polled);
+	if (status)
+		return status;
+
+	ath10k_dbg(ATH10K_DBG_HTC,
+		   "HTC service: %s UL pipe: %d DL pipe: %d eid: %d ready\n",
+		   htc_service_name(ep->service_id), ep->ul_pipe_id,
+		   ep->dl_pipe_id, ep->eid);
+
+	ath10k_dbg(ATH10K_DBG_HTC,
+		   "EP %d UL polled: %d, DL polled: %d\n",
+		   ep->eid, ep->ul_is_polled, ep->dl_is_polled);
+
+	if (disable_credit_flow_ctrl && ep->tx_credit_flow_enabled) {
+		ep->tx_credit_flow_enabled = false;
+		ath10k_dbg(ATH10K_DBG_HTC,
+			   "HTC service: %s eid: %d TX flow control disabled\n",
+			   htc_service_name(ep->service_id), assigned_eid);
+	}
+
+	return status;
+}
+
+struct sk_buff *ath10k_htc_alloc_skb(int size)
+{
+	struct sk_buff *skb;
+
+	skb = dev_alloc_skb(size + sizeof(struct ath10k_htc_hdr));
+	if (!skb) {
+		ath10k_warn("could not allocate HTC tx skb\n");
+		return NULL;
+	}
+
+	skb_reserve(skb, sizeof(struct ath10k_htc_hdr));
+
+	/* FW/HTC requires 4-byte aligned streams */
+	if (!IS_ALIGNED((unsigned long)skb->data, 4))
+		ath10k_warn("Unaligned HTC tx skb\n");
+
+	return skb;
+}
+
+int ath10k_htc_start(struct ath10k_htc *htc)
+{
+	struct sk_buff *skb;
+	int status = 0;
+	struct ath10k_htc_msg *msg;
+
+	skb = ath10k_htc_build_tx_ctrl_skb(htc->ar);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(msg->hdr) + sizeof(msg->setup_complete_ext));
+	memset(skb->data, 0, skb->len);
+
+	msg = (struct ath10k_htc_msg *)skb->data;
+	msg->hdr.message_id =
+		__cpu_to_le16(ATH10K_HTC_MSG_SETUP_COMPLETE_EX_ID);
+
+	ath10k_dbg(ATH10K_DBG_HTC, "HTC is using TX credit flow control\n");
+
+	status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb);
+	if (status) {
+		kfree_skb(skb);
+		return status;
+	}
+
+	return 0;
+}
+
+/*
+ * stop HTC communications, i.e. stop interrupt reception, and flush all
+ * queued buffers
+ */
+void ath10k_htc_stop(struct ath10k_htc *htc)
+{
+	int i;
+	struct ath10k_htc_ep *ep;
+
+	spin_lock_bh(&htc->tx_lock);
+	htc->stopping = true;
+	spin_unlock_bh(&htc->tx_lock);
+
+	for (i = ATH10K_HTC_EP_0; i < ATH10K_HTC_EP_COUNT; i++) {
+		ep = &htc->endpoint[i];
+		ath10k_htc_flush_endpoint_tx(htc, ep);
+	}
+
+	ath10k_hif_stop(htc->ar);
+	ath10k_htc_reset_endpoint_states(htc);
+}
+
+/* registered target arrival callback from the HIF layer */
+struct ath10k_htc *ath10k_htc_create(struct ath10k *ar,
+				     struct ath10k_htc_ops *htc_ops)
+{
+	struct ath10k_hif_cb htc_callbacks;
+	struct ath10k_htc_ep *ep = NULL;
+	struct ath10k_htc *htc = NULL;
+
+	/* FIXME: use struct ath10k instead */
+	htc = kzalloc(sizeof(struct ath10k_htc), GFP_KERNEL);
+	if (!htc)
+		return ERR_PTR(-ENOMEM);
+
+	spin_lock_init(&htc->tx_lock);
+
+	memcpy(&htc->htc_ops, htc_ops, sizeof(struct ath10k_htc_ops));
+
+	ath10k_htc_reset_endpoint_states(htc);
+
+	/* setup HIF layer callbacks */
+	htc_callbacks.rx_completion = ath10k_htc_rx_completion_handler;
+	htc_callbacks.tx_completion = ath10k_htc_tx_completion_handler;
+	htc->ar = ar;
+
+	/* Get HIF default pipe for HTC message exchange */
+	ep = &htc->endpoint[ATH10K_HTC_EP_0];
+
+	ath10k_hif_init(ar, &htc_callbacks);
+	ath10k_hif_get_default_pipe(ar, &ep->ul_pipe_id, &ep->dl_pipe_id);
+
+	init_completion(&htc->ctl_resp);
+
+	return htc;
+}
+
+void ath10k_htc_destroy(struct ath10k_htc *htc)
+{
+	kfree(htc);
+}
diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
new file mode 100644
index 0000000..fa45844
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/htc.h
@@ -0,0 +1,368 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HTC_H_
+#define _HTC_H_
+
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/bug.h>
+#include <linux/skbuff.h>
+#include <linux/semaphore.h>
+#include <linux/timer.h>
+
+struct ath10k;
+
+/****************/
+/* HTC protocol */
+/****************/
+
+/*
+ * HTC - host-target control protocol
+ *
+ * tx packets are generally <htc_hdr><payload>
+ * rx packets are more complex: <htc_hdr><payload><trailer>
+ *
+ * The payload + trailer length is stored in len.
+ * To get payload-only length one needs to payload - trailer_len.
+ *
+ * Trailer contains (possibly) multiple <htc_record>.
+ * Each record is a id-len-value.
+ *
+ * HTC header flags, control_byte0, control_byte1
+ * have different meaning depending whether its tx
+ * or rx.
+ *
+ * Alignment: htc_hdr, payload and trailer are
+ * 4-byte aligned.
+ */
+
+enum ath10k_htc_tx_flags {
+	ATH10K_HTC_FLAG_NEED_CREDIT_UPDATE = 0x01,
+	ATH10K_HTC_FLAG_SEND_BUNDLE        = 0x02
+};
+
+enum ath10k_htc_rx_flags {
+	ATH10K_HTC_FLAG_TRAILER_PRESENT = 0x02,
+	ATH10K_HTC_FLAG_BUNDLE_MASK     = 0xF0
+};
+
+struct ath10k_htc_hdr {
+	u8 eid; /* @enum ath10k_htc_ep_id */
+	u8 flags; /* @enum ath10k_htc_tx_flags, ath10k_htc_rx_flags */
+	__le16 len;
+	union {
+		u8 trailer_len; /* for rx */
+		u8 control_byte0;
+	} __packed;
+	union {
+		u8 seq_no; /* for tx */
+		u8 control_byte1;
+	} __packed;
+	u8 pad0;
+	u8 pad1;
+} __packed __aligned(4);
+
+enum ath10k_ath10k_htc_msg_id {
+	ATH10K_HTC_MSG_READY_ID                = 1,
+	ATH10K_HTC_MSG_CONNECT_SERVICE_ID      = 2,
+	ATH10K_HTC_MSG_CONNECT_SERVICE_RESP_ID = 3,
+	ATH10K_HTC_MSG_SETUP_COMPLETE_ID       = 4,
+	ATH10K_HTC_MSG_SETUP_COMPLETE_EX_ID    = 5,
+	ATH10K_HTC_MSG_SEND_SUSPEND_COMPLETE   = 6
+};
+
+enum ath10k_htc_version {
+	ATH10K_HTC_VERSION_2P0 = 0x00, /* 2.0 */
+	ATH10K_HTC_VERSION_2P1 = 0x01, /* 2.1 */
+};
+
+enum ath10k_htc_conn_flags {
+	ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_FOURTH    = 0x0,
+	ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_HALF      = 0x1,
+	ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_THREE_FOURTHS = 0x2,
+	ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_UNITY         = 0x3,
+#define ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_MASK 0x3
+	ATH10K_HTC_CONN_FLAGS_REDUCE_CREDIT_DRIBBLE    = 1 << 2,
+	ATH10K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL = 1 << 3
+#define ATH10K_HTC_CONN_FLAGS_RECV_ALLOC_MASK 0xFF00
+#define ATH10K_HTC_CONN_FLAGS_RECV_ALLOC_LSB  8
+};
+
+enum ath10k_htc_conn_svc_status {
+	ATH10K_HTC_CONN_SVC_STATUS_SUCCESS      = 0,
+	ATH10K_HTC_CONN_SVC_STATUS_NOT_FOUND    = 1,
+	ATH10K_HTC_CONN_SVC_STATUS_FAILED       = 2,
+	ATH10K_HTC_CONN_SVC_STATUS_NO_RESOURCES = 3,
+	ATH10K_HTC_CONN_SVC_STATUS_NO_MORE_EP   = 4
+};
+
+struct ath10k_ath10k_htc_msg_hdr {
+	__le16 message_id; /* @enum htc_message_id */
+} __packed;
+
+struct ath10k_htc_unknown {
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_ready {
+	__le16 credit_count;
+	__le16 credit_size;
+	u8 max_endpoints;
+	u8 pad0;
+} __packed;
+
+struct ath10k_htc_ready_extended {
+	struct ath10k_htc_ready base;
+	u8 htc_version; /* @enum ath10k_htc_version */
+	u8 max_msgs_per_htc_bundle;
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_conn_svc {
+	__le16 service_id;
+	__le16 flags; /* @enum ath10k_htc_conn_flags */
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_conn_svc_response {
+	__le16 service_id;
+	u8 status; /* @enum ath10k_htc_conn_svc_status */
+	u8 eid;
+	__le16 max_msg_size;
+} __packed;
+
+struct ath10k_htc_setup_complete_extended {
+	u8 pad0;
+	u8 pad1;
+	__le32 flags; /* @enum htc_setup_complete_flags */
+	u8 max_msgs_per_bundled_recv;
+	u8 pad2;
+	u8 pad3;
+	u8 pad4;
+} __packed;
+
+struct ath10k_htc_msg {
+	struct ath10k_ath10k_htc_msg_hdr hdr;
+	union {
+		/* host-to-target */
+		struct ath10k_htc_conn_svc connect_service;
+		struct ath10k_htc_ready ready;
+		struct ath10k_htc_ready_extended ready_ext;
+		struct ath10k_htc_unknown unknown;
+		struct ath10k_htc_setup_complete_extended setup_complete_ext;
+
+		/* target-to-host */
+		struct ath10k_htc_conn_svc_response connect_service_response;
+	};
+} __packed __aligned(4);
+
+enum ath10k_ath10k_htc_record_id {
+	ATH10K_HTC_RECORD_NULL    = 0,
+	ATH10K_HTC_RECORD_CREDITS = 1
+};
+
+struct ath10k_ath10k_htc_record_hdr {
+	u8 id; /* @enum ath10k_ath10k_htc_record_id */
+	u8 len;
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_credit_report {
+	u8 eid; /* @enum ath10k_htc_ep_id */
+	u8 credits;
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_record {
+	struct ath10k_ath10k_htc_record_hdr hdr;
+	union {
+		struct ath10k_htc_credit_report credit_report[0];
+		u8 pauload[0];
+	};
+} __packed __aligned(4);
+
+/*
+ * note: the trailer offset is dynamic depending
+ * on payload length. this is only a struct layout draft
+ */
+struct ath10k_htc_frame {
+	struct ath10k_htc_hdr hdr;
+	union {
+		struct ath10k_htc_msg msg;
+		u8 payload[0];
+	};
+	struct ath10k_htc_record trailer[0];
+} __packed __aligned(4);
+
+
+/*******************/
+/* Host-side stuff */
+/*******************/
+
+enum ath10k_htc_svc_gid {
+	ATH10K_HTC_SVC_GRP_RSVD = 0,
+	ATH10K_HTC_SVC_GRP_WMI = 1,
+	ATH10K_HTC_SVC_GRP_NMI = 2,
+	ATH10K_HTC_SVC_GRP_HTT = 3,
+
+	ATH10K_HTC_SVC_GRP_TEST = 254,
+	ATH10K_HTC_SVC_GRP_LAST = 255,
+};
+
+#define SVC(group, idx) \
+	(int)(((int)(group) << 8) | (int)(idx))
+
+enum ath10k_htc_svc_id {
+	/* NOTE: service ID of 0x0000 is reserved and should never be used */
+	ATH10K_HTC_SVC_ID_RESERVED	= 0x0000,
+	ATH10K_HTC_SVC_ID_UNUSED	= ATH10K_HTC_SVC_ID_RESERVED,
+
+	ATH10K_HTC_SVC_ID_RSVD_CTRL	= SVC(ATH10K_HTC_SVC_GRP_RSVD, 1),
+	ATH10K_HTC_SVC_ID_WMI_CONTROL	= SVC(ATH10K_HTC_SVC_GRP_WMI, 0),
+	ATH10K_HTC_SVC_ID_WMI_DATA_BE	= SVC(ATH10K_HTC_SVC_GRP_WMI, 1),
+	ATH10K_HTC_SVC_ID_WMI_DATA_BK	= SVC(ATH10K_HTC_SVC_GRP_WMI, 2),
+	ATH10K_HTC_SVC_ID_WMI_DATA_VI	= SVC(ATH10K_HTC_SVC_GRP_WMI, 3),
+	ATH10K_HTC_SVC_ID_WMI_DATA_VO	= SVC(ATH10K_HTC_SVC_GRP_WMI, 4),
+
+	ATH10K_HTC_SVC_ID_NMI_CONTROL	= SVC(ATH10K_HTC_SVC_GRP_NMI, 0),
+	ATH10K_HTC_SVC_ID_NMI_DATA	= SVC(ATH10K_HTC_SVC_GRP_NMI, 1),
+
+	ATH10K_HTC_SVC_ID_HTT_DATA_MSG	= SVC(ATH10K_HTC_SVC_GRP_HTT, 0),
+
+	/* raw stream service (i.e. flash, tcmd, calibration apps) */
+	ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS = SVC(ATH10K_HTC_SVC_GRP_TEST, 0),
+};
+
+#undef SVC
+
+enum ath10k_htc_ep_id {
+	ATH10K_HTC_EP_UNUSED = -1,
+	ATH10K_HTC_EP_0 = 0,
+	ATH10K_HTC_EP_1 = 1,
+	ATH10K_HTC_EP_2,
+	ATH10K_HTC_EP_3,
+	ATH10K_HTC_EP_4,
+	ATH10K_HTC_EP_5,
+	ATH10K_HTC_EP_6,
+	ATH10K_HTC_EP_7,
+	ATH10K_HTC_EP_8,
+	ATH10K_HTC_EP_COUNT,
+};
+
+struct ath10k_htc_ops {
+	void (*target_send_suspend_complete)(struct ath10k *ar);
+};
+
+struct ath10k_htc_ep_ops {
+	void (*ep_tx_complete)(struct ath10k *, struct sk_buff *);
+	void (*ep_rx_complete)(struct ath10k *, struct sk_buff *);
+};
+
+/* service connection information */
+struct ath10k_htc_svc_conn_req {
+	u16 service_id;
+	struct ath10k_htc_ep_ops ep_ops;
+	int max_send_queue_depth;
+};
+
+/* service connection response information */
+struct ath10k_htc_svc_conn_resp {
+	u8 buffer_len;
+	u8 actual_len;
+	enum ath10k_htc_ep_id eid;
+	unsigned int max_msg_len;
+	u8 connect_resp_code;
+};
+
+#define ATH10K_NUM_CONTROL_TX_BUFFERS 2
+#define ATH10K_HTC_MAX_LEN 4096
+#define ATH10K_HTC_MAX_CTRL_MSG_LEN 256
+#define ATH10K_HTC_WAIT_TIMEOUT_HZ (1*HZ)
+#define ATH10K_HTC_CONTROL_BUFFER_SIZE (ATH10K_HTC_MAX_CTRL_MSG_LEN + \
+					sizeof(struct ath10k_htc_hdr))
+#define ATH10K_HTC_CONN_SVC_TIMEOUT_HZ (1*HZ)
+
+struct ath10k_htc_ep {
+	struct ath10k_htc *htc;
+	enum ath10k_htc_ep_id eid;
+	enum ath10k_htc_svc_id service_id;
+	struct ath10k_htc_ep_ops ep_ops;
+
+	int max_tx_queue_depth;
+	int max_ep_message_len;
+	u8 ul_pipe_id;
+	u8 dl_pipe_id;
+	int ul_is_polled; /* call HIF to get tx completions */
+	int dl_is_polled; /* call HIF to fetch rx (not implemented) */
+
+	struct sk_buff_head tx_queue;
+
+	u8 seq_no; /* for debugging */
+	int tx_credits;
+	int tx_credit_size;
+	int tx_credits_per_max_message;
+	bool tx_credit_flow_enabled;
+
+	struct work_struct send_work;
+};
+
+struct ath10k_htc_svc_tx_credits {
+	u16 service_id;
+	u8  credit_allocation;
+};
+
+struct ath10k_htc {
+	struct ath10k *ar;
+	struct ath10k_htc_ep endpoint[ATH10K_HTC_EP_COUNT];
+
+	/* protects endpoint and stopping fields */
+	spinlock_t tx_lock;
+
+	struct ath10k_htc_ops htc_ops;
+
+	u8 control_resp_buffer[ATH10K_HTC_MAX_CTRL_MSG_LEN];
+	int control_resp_len;
+
+	struct completion ctl_resp;
+
+	int total_transmit_credits;
+	struct ath10k_htc_svc_tx_credits service_tx_alloc[ATH10K_HTC_EP_COUNT];
+	int target_credit_size;
+
+	bool stopping;
+};
+
+struct ath10k_htc *ath10k_htc_create(struct ath10k *ar,
+				     struct ath10k_htc_ops *htc_ops);
+int ath10k_htc_wait_target(struct ath10k_htc *htc);
+int ath10k_htc_start(struct ath10k_htc *htc);
+int ath10k_htc_connect_service(struct ath10k_htc *htc,
+			       struct ath10k_htc_svc_conn_req  *conn_req,
+			       struct ath10k_htc_svc_conn_resp *conn_resp);
+int ath10k_htc_send(struct ath10k_htc *htc, enum ath10k_htc_ep_id eid,
+		    struct sk_buff *packet);
+void ath10k_htc_stop(struct ath10k_htc *htc);
+void ath10k_htc_destroy(struct ath10k_htc *htc);
+struct sk_buff *ath10k_htc_alloc_skb(int size);
+
+#endif
diff --git a/drivers/net/wireless/ath/ath10k/htt.c b/drivers/net/wireless/ath/ath10k/htt.c
new file mode 100644
index 0000000..185a546
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/htt.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/slab.h>
+
+#include "htt.h"
+#include "core.h"
+#include "debug.h"
+
+static int ath10k_htt_htc_attach(struct ath10k_htt *htt)
+{
+	struct ath10k_htc_svc_conn_req conn_req;
+	struct ath10k_htc_svc_conn_resp conn_resp;
+	int status;
+
+	memset(&conn_req, 0, sizeof(conn_req));
+	memset(&conn_resp, 0, sizeof(conn_resp));
+
+	conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
+	conn_req.ep_ops.ep_rx_complete = ath10k_htt_t2h_msg_handler;
+
+	/* connect to control service */
+	conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
+
+	status = ath10k_htc_connect_service(htt->ar->htc, &conn_req,
+					    &conn_resp);
+
+	if (status)
+		return status;
+
+	htt->eid = conn_resp.eid;
+
+	return 0;
+}
+
+struct ath10k_htt *ath10k_htt_attach(struct ath10k *ar)
+{
+	struct ath10k_htt *htt;
+	int ret;
+
+	htt = kzalloc(sizeof(*htt), GFP_KERNEL);
+	if (!htt)
+		return NULL;
+
+	htt->ar = ar;
+	htt->max_throughput_mbps = 800;
+
+	/*
+	 * Connect to HTC service.
+	 * This has to be done before calling ath10k_htt_rx_attach,
+	 * since ath10k_htt_rx_attach involves sending a rx ring configure
+	 * message to the target.
+	 */
+	if (ath10k_htt_htc_attach(htt))
+		goto err_htc_attach;
+
+	ret = ath10k_htt_tx_attach(htt);
+	if (ret) {
+		ath10k_err("could not attach htt tx (%d)\n", ret);
+		goto err_htc_attach;
+	}
+
+	if (ath10k_htt_rx_attach(htt))
+		goto err_rx_attach;
+
+	/*
+	 * Prefetch enough data to satisfy target
+	 * classification engine.
+	 * This is for LL chips. HL chips will probably
+	 * transfer all frame in the tx fragment.
+	 */
+	htt->prefetch_len =
+		36 + /* 802.11 + qos + ht */
+		4 + /* 802.1q */
+		8 + /* llc snap */
+		2; /* ip4 dscp or ip6 priority */
+
+	return htt;
+
+err_rx_attach:
+	ath10k_htt_tx_detach(htt);
+err_htc_attach:
+	kfree(htt);
+	return NULL;
+}
+
+#define HTT_TARGET_VERSION_TIMEOUT_HZ (3*HZ)
+
+static int ath10k_htt_verify_version(struct ath10k_htt *htt)
+{
+	ath10k_dbg(ATH10K_DBG_HTT,
+		   "htt target version %d.%d; host version %d.%d\n",
+		    htt->target_version_major,
+		    htt->target_version_minor,
+		    HTT_CURRENT_VERSION_MAJOR,
+		    HTT_CURRENT_VERSION_MINOR);
+
+	if (htt->target_version_major != HTT_CURRENT_VERSION_MAJOR) {
+		ath10k_err("htt major versions are incompatible!\n");
+		return -ENOTSUPP;
+	}
+
+	if (htt->target_version_minor != HTT_CURRENT_VERSION_MINOR)
+		ath10k_warn("htt minor version differ but still compatible\n");
+
+	return 0;
+}
+
+int ath10k_htt_attach_target(struct ath10k_htt *htt)
+{
+	int status;
+
+	init_completion(&htt->target_version_received);
+
+	status = ath10k_htt_h2t_ver_req_msg(htt);
+	if (status)
+		return status;
+
+	status = wait_for_completion_timeout(&htt->target_version_received,
+						HTT_TARGET_VERSION_TIMEOUT_HZ);
+	if (status <= 0) {
+		ath10k_warn("htt version request timed out\n");
+		return -ETIMEDOUT;
+	}
+
+	status = ath10k_htt_verify_version(htt);
+	if (status)
+		return status;
+
+	return ath10k_htt_send_rx_ring_cfg_ll(htt);
+}
+
+void ath10k_htt_detach(struct ath10k_htt *htt)
+{
+	ath10k_htt_rx_detach(htt);
+	ath10k_htt_tx_detach(htt);
+	kfree(htt);
+}
diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
new file mode 100644
index 0000000..a7a7aa0
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -0,0 +1,1338 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HTT_H_
+#define _HTT_H_
+
+#include <linux/bug.h>
+
+#include "core.h"
+#include "htc.h"
+#include "rx_desc.h"
+
+#define HTT_CURRENT_VERSION_MAJOR	2
+#define HTT_CURRENT_VERSION_MINOR	1
+
+enum htt_dbg_stats_type {
+	HTT_DBG_STATS_WAL_PDEV_TXRX = 1 << 0,
+	HTT_DBG_STATS_RX_REORDER    = 1 << 1,
+	HTT_DBG_STATS_RX_RATE_INFO  = 1 << 2,
+	HTT_DBG_STATS_TX_PPDU_LOG   = 1 << 3,
+	HTT_DBG_STATS_TX_RATE_INFO  = 1 << 4,
+	/* bits 5-23 currently reserved */
+
+	HTT_DBG_NUM_STATS /* keep this last */
+};
+
+enum htt_h2t_msg_type { /* host-to-target */
+	HTT_H2T_MSG_TYPE_VERSION_REQ        = 0,
+	HTT_H2T_MSG_TYPE_TX_FRM             = 1,
+	HTT_H2T_MSG_TYPE_RX_RING_CFG        = 2,
+	HTT_H2T_MSG_TYPE_STATS_REQ          = 3,
+	HTT_H2T_MSG_TYPE_SYNC               = 4,
+	HTT_H2T_MSG_TYPE_AGGR_CFG           = 5,
+	HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG = 6,
+	HTT_H2T_MSG_TYPE_MGMT_TX            = 7,
+
+	HTT_H2T_NUM_MSGS /* keep this last */
+};
+
+struct htt_cmd_hdr {
+	u8 msg_type;
+} __packed;
+
+struct htt_ver_req {
+	u8 pad[sizeof(u32) - sizeof(struct htt_cmd_hdr)];
+} __packed;
+
+/*
+ * HTT tx MSDU descriptor
+ *
+ * The HTT tx MSDU descriptor is created by the host HTT SW for each
+ * tx MSDU.  The HTT tx MSDU descriptor contains the information that
+ * the target firmware needs for the FW's tx processing, particularly
+ * for creating the HW msdu descriptor.
+ * The same HTT tx descriptor is used for HL and LL systems, though
+ * a few fields within the tx descriptor are used only by LL or
+ * only by HL.
+ * The HTT tx descriptor is defined in two manners: by a struct with
+ * bitfields, and by a series of [dword offset, bit mask, bit shift]
+ * definitions.
+ * The target should use the struct def, for simplicitly and clarity,
+ * but the host shall use the bit-mast + bit-shift defs, to be endian-
+ * neutral.  Specifically, the host shall use the get/set macros built
+ * around the mask + shift defs.
+ */
+struct htt_data_tx_desc_frag {
+	__le32 paddr;
+	__le32 len;
+} __packed;
+
+enum htt_data_tx_desc_flags0 {
+	HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT = 1 << 0,
+	HTT_DATA_TX_DESC_FLAGS0_NO_AGGR         = 1 << 1,
+	HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT      = 1 << 2,
+	HTT_DATA_TX_DESC_FLAGS0_NO_CLASSIFY     = 1 << 3,
+	HTT_DATA_TX_DESC_FLAGS0_RSVD0           = 1 << 4
+#define HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE_MASK 0xE0
+#define HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE_LSB 5
+};
+
+enum htt_data_tx_desc_flags1 {
+#define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_BITS 6
+#define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_MASK 0x003F
+#define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_LSB  0
+#define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_BITS 5
+#define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_MASK 0x07C0
+#define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_LSB  6
+	HTT_DATA_TX_DESC_FLAGS1_POSTPONED        = 1 << 11,
+	HTT_DATA_TX_DESC_FLAGS1_MORE_IN_BATCH    = 1 << 12,
+	HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD = 1 << 13,
+	HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD = 1 << 14,
+	HTT_DATA_TX_DESC_FLAGS1_RSVD1            = 1 << 15
+};
+
+enum htt_data_tx_ext_tid {
+	HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST = 16,
+	HTT_DATA_TX_EXT_TID_MGMT                = 17,
+	HTT_DATA_TX_EXT_TID_INVALID             = 31
+};
+
+#define HTT_INVALID_PEERID 0xFFFF
+
+/*
+ * htt_data_tx_desc - used for data tx path
+ *
+ * Note: vdev_id irrelevant for pkt_type == raw and no_classify == 1.
+ *       ext_tid: for qos-data frames (0-15), see %HTT_DATA_TX_EXT_TID_
+ *                for special kinds of tids
+ *       postponed: only for HL hosts. indicates if this is a resend
+ *                  (HL hosts manage queues on the host )
+ *       more_in_batch: only for HL hosts. indicates if more packets are
+ *                      pending. this allows target to wait and aggregate
+ */
+struct htt_data_tx_desc {
+	u8 flags0; /* %HTT_DATA_TX_DESC_FLAGS0_ */
+	__le16 flags1; /* %HTT_DATA_TX_DESC_FLAGS1_ */
+	__le16 len;
+	__le16 id;
+	__le32 frags_paddr;
+	__le32 peerid;
+	u8 prefetch[0]; /* start of frame, for FW classification engine */
+} __packed;
+
+enum htt_rx_ring_flags {
+	HTT_RX_RING_FLAGS_MAC80211_HDR = 1 << 0,
+	HTT_RX_RING_FLAGS_MSDU_PAYLOAD = 1 << 1,
+	HTT_RX_RING_FLAGS_PPDU_START   = 1 << 2,
+	HTT_RX_RING_FLAGS_PPDU_END     = 1 << 3,
+	HTT_RX_RING_FLAGS_MPDU_START   = 1 << 4,
+	HTT_RX_RING_FLAGS_MPDU_END     = 1 << 5,
+	HTT_RX_RING_FLAGS_MSDU_START   = 1 << 6,
+	HTT_RX_RING_FLAGS_MSDU_END     = 1 << 7,
+	HTT_RX_RING_FLAGS_RX_ATTENTION = 1 << 8,
+	HTT_RX_RING_FLAGS_FRAG_INFO    = 1 << 9,
+	HTT_RX_RING_FLAGS_UNICAST_RX   = 1 << 10,
+	HTT_RX_RING_FLAGS_MULTICAST_RX = 1 << 11,
+	HTT_RX_RING_FLAGS_CTRL_RX      = 1 << 12,
+	HTT_RX_RING_FLAGS_MGMT_RX      = 1 << 13,
+	HTT_RX_RING_FLAGS_NULL_RX      = 1 << 14,
+	HTT_RX_RING_FLAGS_PHY_DATA_RX  = 1 << 15
+};
+
+struct htt_rx_ring_setup_ring {
+	__le32 fw_idx_shadow_reg_paddr;
+	__le32 rx_ring_base_paddr;
+	__le16 rx_ring_len; /* in 4-byte words */
+	__le16 rx_ring_bufsize; /* rx skb size - in bytes */
+	__le16 flags; /* %HTT_RX_RING_FLAGS_ */
+	__le16 fw_idx_init_val;
+
+	/* the following offsets are in 4-byte units */
+	__le16 mac80211_hdr_offset;
+	__le16 msdu_payload_offset;
+	__le16 ppdu_start_offset;
+	__le16 ppdu_end_offset;
+	__le16 mpdu_start_offset;
+	__le16 mpdu_end_offset;
+	__le16 msdu_start_offset;
+	__le16 msdu_end_offset;
+	__le16 rx_attention_offset;
+	__le16 frag_info_offset;
+} __packed;
+
+struct htt_rx_ring_setup_hdr {
+	u8 num_rings; /* supported values: 1, 2 */
+	__le16 rsvd0;
+} __packed;
+
+struct htt_rx_ring_setup {
+	struct htt_rx_ring_setup_hdr hdr;
+	struct htt_rx_ring_setup_ring rings[0];
+} __packed;
+
+/*
+ * htt_stats_req - request target to send specified statistics
+ *
+ * @msg_type: hardcoded %HTT_H2T_MSG_TYPE_STATS_REQ
+ * @upload_types: see %htt_dbg_stats_type. this is 24bit field actually
+ *	so make sure its little-endian.
+ * @reset_types: see %htt_dbg_stats_type. this is 24bit field actually
+ *	so make sure its little-endian.
+ * @cfg_val: stat_type specific configuration
+ * @stat_type: see %htt_dbg_stats_type
+ * @cookie_lsb: used for confirmation message from target->host
+ * @cookie_msb: ditto as %cookie
+ */
+struct htt_stats_req {
+	u8 upload_types[3];
+	u8 rsvd0;
+	u8 reset_types[3];
+	struct {
+		u8 mpdu_bytes;
+		u8 mpdu_num_msdus;
+		u8 msdu_bytes;
+	} __packed;
+	u8 stat_type;
+	__le32 cookie_lsb;
+	__le32 cookie_msb;
+} __packed;
+
+#define HTT_STATS_REQ_CFG_STAT_TYPE_INVALID 0xff
+
+/*
+ * htt_oob_sync_req - request out-of-band sync
+ *
+ * The HTT SYNC tells the target to suspend processing of subsequent
+ * HTT host-to-target messages until some other target agent locally
+ * informs the target HTT FW that the current sync counter is equal to
+ * or greater than (in a modulo sense) the sync counter specified in
+ * the SYNC message.
+ *
+ * This allows other host-target components to synchronize their operation
+ * with HTT, e.g. to ensure that tx frames don't get transmitted until a
+ * security key has been downloaded to and activated by the target.
+ * In the absence of any explicit synchronization counter value
+ * specification, the target HTT FW will use zero as the default current
+ * sync value.
+ *
+ * The HTT target FW will suspend its host->target message processing as long
+ * as 0 < (in-band sync counter - out-of-band sync counter) & 0xff < 128.
+ */
+struct htt_oob_sync_req {
+	u8 sync_count;
+	__le16 rsvd0;
+} __packed;
+
+#define HTT_AGGR_CONF_MAX_NUM_AMSDU_SUBFRAMES_MASK 0x1F
+#define HTT_AGGR_CONF_MAX_NUM_AMSDU_SUBFRAMES_LSB  0
+
+struct htt_aggr_conf {
+	u8 max_num_ampdu_subframes;
+	union {
+		/* dont use bitfields; undefined behaviour */
+		u8 flags; /* see %HTT_AGGR_CONF_MAX_NUM_AMSDU_SUBFRAMES_ */
+		u8 max_num_amsdu_subframes:5;
+	} __packed;
+} __packed;
+
+#define HTT_MGMT_FRM_HDR_DOWNLOAD_LEN 32
+
+struct htt_mgmt_tx_desc {
+	u8 pad[sizeof(u32) - sizeof(struct htt_cmd_hdr)];
+	__le32 msdu_paddr;
+	__le32 desc_id;
+	__le32 len;
+	__le32 vdev_id;
+	u8 hdr[HTT_MGMT_FRM_HDR_DOWNLOAD_LEN];
+} __packed;
+
+enum htt_mgmt_tx_status {
+	HTT_MGMT_TX_STATUS_OK    = 0,
+	HTT_MGMT_TX_STATUS_RETRY = 1,
+	HTT_MGMT_TX_STATUS_DROP  = 2
+};
+
+/*=== target -> host messages ===============================================*/
+
+
+enum htt_t2h_msg_type {
+	HTT_T2H_MSG_TYPE_VERSION_CONF		= 0x0,
+	HTT_T2H_MSG_TYPE_RX_IND			= 0x1,
+	HTT_T2H_MSG_TYPE_RX_FLUSH		= 0x2,
+	HTT_T2H_MSG_TYPE_PEER_MAP		= 0x3,
+	HTT_T2H_MSG_TYPE_PEER_UNMAP		= 0x4,
+	HTT_T2H_MSG_TYPE_RX_ADDBA		= 0x5,
+	HTT_T2H_MSG_TYPE_RX_DELBA		= 0x6,
+	HTT_T2H_MSG_TYPE_TX_COMPL_IND		= 0x7,
+	HTT_T2H_MSG_TYPE_PKTLOG			= 0x8,
+	HTT_T2H_MSG_TYPE_STATS_CONF		= 0x9,
+	HTT_T2H_MSG_TYPE_RX_FRAG_IND		= 0xa,
+	HTT_T2H_MSG_TYPE_SEC_IND		= 0xb,
+	HTT_T2H_MSG_TYPE_RC_UPDATE_IND		= 0xc,
+	HTT_T2H_MSG_TYPE_TX_INSPECT_IND		= 0xd,
+	HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION	= 0xe,
+	HTT_T2H_MSG_TYPE_TEST,
+	/* keep this last */
+	HTT_T2H_NUM_MSGS
+};
+
+/*
+ * htt_resp_hdr - header for target-to-host messages
+ *
+ * msg_type: see htt_t2h_msg_type
+ */
+struct htt_resp_hdr {
+	u8 msg_type;
+} __packed;
+
+#define HTT_RESP_HDR_MSG_TYPE_OFFSET 0
+#define HTT_RESP_HDR_MSG_TYPE_MASK   0xff
+#define HTT_RESP_HDR_MSG_TYPE_LSB    0
+
+/* htt_ver_resp - response sent for htt_ver_req */
+struct htt_ver_resp {
+	u8 minor;
+	u8 major;
+	u8 rsvd0;
+} __packed;
+
+struct htt_mgmt_tx_completion {
+	u8 rsvd0;
+	u8 rsvd1;
+	u8 rsvd2;
+	__le32 desc_id;
+	__le32 status;
+} __packed;
+
+#define HTT_RX_INDICATION_INFO0_EXT_TID_MASK  (0x3F)
+#define HTT_RX_INDICATION_INFO0_EXT_TID_LSB   (0)
+#define HTT_RX_INDICATION_INFO0_FLUSH_VALID   (1 << 6)
+#define HTT_RX_INDICATION_INFO0_RELEASE_VALID (1 << 7)
+
+#define HTT_RX_INDICATION_INFO1_FLUSH_START_SEQNO_MASK   0x0000003F
+#define HTT_RX_INDICATION_INFO1_FLUSH_START_SEQNO_LSB    0
+#define HTT_RX_INDICATION_INFO1_FLUSH_END_SEQNO_MASK     0x00000FC0
+#define HTT_RX_INDICATION_INFO1_FLUSH_END_SEQNO_LSB      6
+#define HTT_RX_INDICATION_INFO1_RELEASE_START_SEQNO_MASK 0x0003F000
+#define HTT_RX_INDICATION_INFO1_RELEASE_START_SEQNO_LSB  12
+#define HTT_RX_INDICATION_INFO1_RELEASE_END_SEQNO_MASK   0x00FC0000
+#define HTT_RX_INDICATION_INFO1_RELEASE_END_SEQNO_LSB    18
+#define HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES_MASK     0xFF000000
+#define HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES_LSB      24
+
+struct htt_rx_indication_hdr {
+	u8 info0; /* %HTT_RX_INDICATION_INFO0_ */
+	__le16 peer_id;
+	__le32 info1; /* %HTT_RX_INDICATION_INFO1_ */
+} __packed;
+
+#define HTT_RX_INDICATION_INFO0_PHY_ERR_VALID    (1 << 0)
+#define HTT_RX_INDICATION_INFO0_LEGACY_RATE_MASK (0x1E)
+#define HTT_RX_INDICATION_INFO0_LEGACY_RATE_LSB  (1)
+#define HTT_RX_INDICATION_INFO0_LEGACY_RATE_CCK  (1 << 5)
+#define HTT_RX_INDICATION_INFO0_END_VALID        (1 << 6)
+#define HTT_RX_INDICATION_INFO0_START_VALID      (1 << 7)
+
+#define HTT_RX_INDICATION_INFO1_VHT_SIG_A1_MASK    0x00FFFFFF
+#define HTT_RX_INDICATION_INFO1_VHT_SIG_A1_LSB     0
+#define HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE_MASK 0xFF000000
+#define HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE_LSB  24
+
+#define HTT_RX_INDICATION_INFO2_VHT_SIG_A1_MASK 0x00FFFFFF
+#define HTT_RX_INDICATION_INFO2_VHT_SIG_A1_LSB  0
+#define HTT_RX_INDICATION_INFO2_SERVICE_MASK    0xFF000000
+#define HTT_RX_INDICATION_INFO2_SERVICE_LSB     24
+
+enum htt_rx_legacy_rate {
+	HTT_RX_OFDM_48 = 0,
+	HTT_RX_OFDM_24 = 1,
+	HTT_RX_OFDM_12,
+	HTT_RX_OFDM_6,
+	HTT_RX_OFDM_54,
+	HTT_RX_OFDM_36,
+	HTT_RX_OFDM_18,
+	HTT_RX_OFDM_9,
+
+	/* long preamble */
+	HTT_RX_CCK_11_LP = 0,
+	HTT_RX_CCK_5_5_LP = 1,
+	HTT_RX_CCK_2_LP,
+	HTT_RX_CCK_1_LP,
+	/* short preamble */
+	HTT_RX_CCK_11_SP,
+	HTT_RX_CCK_5_5_SP,
+	HTT_RX_CCK_2_SP
+};
+
+enum htt_rx_legacy_rate_type {
+	HTT_RX_LEGACY_RATE_OFDM = 0,
+	HTT_RX_LEGACY_RATE_CCK
+};
+
+enum htt_rx_preamble_type {
+	HTT_RX_LEGACY        = 0x4,
+	HTT_RX_HT            = 0x8,
+	HTT_RX_HT_WITH_TXBF  = 0x9,
+	HTT_RX_VHT           = 0xC,
+	HTT_RX_VHT_WITH_TXBF = 0xD,
+};
+
+/*
+ * Fields: phy_err_valid, phy_err_code, tsf,
+ * usec_timestamp, sub_usec_timestamp
+ * ..are valid only if end_valid == 1.
+ *
+ * Fields: rssi_chains, legacy_rate_type,
+ * legacy_rate_cck, preamble_type, service,
+ * vht_sig_*
+ * ..are valid only if start_valid == 1;
+ */
+struct htt_rx_indication_ppdu {
+	u8 combined_rssi;
+	u8 sub_usec_timestamp;
+	u8 phy_err_code;
+	u8 info0; /* HTT_RX_INDICATION_INFO0_ */
+	struct {
+		u8 pri20_db;
+		u8 ext20_db;
+		u8 ext40_db;
+		u8 ext80_db;
+	} __packed rssi_chains[4];
+	__le32 tsf;
+	__le32 usec_timestamp;
+	__le32 info1; /* HTT_RX_INDICATION_INFO1_ */
+	__le32 info2; /* HTT_RX_INDICATION_INFO2_ */
+} __packed;
+
+enum htt_rx_mpdu_status {
+	HTT_RX_IND_MPDU_STATUS_UNKNOWN = 0x0,
+	HTT_RX_IND_MPDU_STATUS_OK,
+	HTT_RX_IND_MPDU_STATUS_ERR_FCS,
+	HTT_RX_IND_MPDU_STATUS_ERR_DUP,
+	HTT_RX_IND_MPDU_STATUS_ERR_REPLAY,
+	HTT_RX_IND_MPDU_STATUS_ERR_INV_PEER,
+	/* only accept EAPOL frames */
+	HTT_RX_IND_MPDU_STATUS_UNAUTH_PEER,
+	HTT_RX_IND_MPDU_STATUS_OUT_OF_SYNC,
+	/* Non-data in promiscous mode */
+	HTT_RX_IND_MPDU_STATUS_MGMT_CTRL,
+	HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR,
+	HTT_RX_IND_MPDU_STATUS_DECRYPT_ERR,
+	HTT_RX_IND_MPDU_STATUS_MPDU_LENGTH_ERR,
+	HTT_RX_IND_MPDU_STATUS_ENCRYPT_REQUIRED_ERR,
+	HTT_RX_IND_MPDU_STATUS_PRIVACY_ERR,
+
+	/*
+	 * MISC: discard for unspecified reasons.
+	 * Leave this enum value last.
+	 */
+	HTT_RX_IND_MPDU_STATUS_ERR_MISC = 0xFF
+};
+
+struct htt_rx_indication_mpdu_range {
+	u8 mpdu_count;
+	u8 mpdu_range_status; /* %htt_rx_mpdu_status */
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct htt_rx_indication_prefix {
+	__le16 fw_rx_desc_bytes;
+	u8 pad0;
+	u8 pad1;
+};
+
+struct htt_rx_indication {
+	struct htt_rx_indication_hdr hdr;
+	struct htt_rx_indication_ppdu ppdu;
+	struct htt_rx_indication_prefix prefix;
+
+	/*
+	 * the following fields are both dynamically sized, so
+	 * take care addressing them
+	 */
+
+	/* the size of this is %fw_rx_desc_bytes */
+	struct fw_rx_desc_base fw_desc;
+
+	/*
+	 * %mpdu_ranges starts after &%prefix + roundup(%fw_rx_desc_bytes, 4)
+	 * and has %num_mpdu_ranges elements.
+	 */
+	struct htt_rx_indication_mpdu_range mpdu_ranges[0];
+} __packed;
+
+static inline struct htt_rx_indication_mpdu_range *
+		htt_rx_ind_get_mpdu_ranges(struct htt_rx_indication *rx_ind)
+{
+	void *ptr = rx_ind;
+
+	ptr += sizeof(rx_ind->hdr)
+	     + sizeof(rx_ind->ppdu)
+	     + sizeof(rx_ind->prefix)
+	     + roundup(__le16_to_cpu(rx_ind->prefix.fw_rx_desc_bytes), 4);
+	return ptr;
+}
+
+enum htt_rx_flush_mpdu_status {
+	HTT_RX_FLUSH_MPDU_DISCARD = 0,
+	HTT_RX_FLUSH_MPDU_REORDER = 1,
+};
+
+/*
+ * htt_rx_flush - discard or reorder given range of mpdus
+ *
+ * Note: host must check if all sequence numbers between
+ *	[seq_num_start, seq_num_end-1] are valid.
+ */
+struct htt_rx_flush {
+	__le16 peer_id;
+	u8 tid;
+	u8 rsvd0;
+	u8 mpdu_status; /* %htt_rx_flush_mpdu_status */
+	u8 seq_num_start; /* it is 6 LSBs of 802.11 seq no */
+	u8 seq_num_end; /* it is 6 LSBs of 802.11 seq no */
+};
+
+struct htt_rx_peer_map {
+	u8 vdev_id;
+	__le16 peer_id;
+	u8 addr[6];
+	u8 rsvd0;
+	u8 rsvd1;
+} __packed;
+
+struct htt_rx_peer_unmap {
+	u8 rsvd0;
+	__le16 peer_id;
+} __packed;
+
+enum htt_security_types {
+	HTT_SECURITY_NONE,
+	HTT_SECURITY_WEP128,
+	HTT_SECURITY_WEP104,
+	HTT_SECURITY_WEP40,
+	HTT_SECURITY_TKIP,
+	HTT_SECURITY_TKIP_NOMIC,
+	HTT_SECURITY_AES_CCMP,
+	HTT_SECURITY_WAPI,
+
+	HTT_NUM_SECURITY_TYPES /* keep this last! */
+};
+
+enum htt_security_flags {
+#define HTT_SECURITY_TYPE_MASK 0x7F
+#define HTT_SECURITY_TYPE_LSB  0
+	HTT_SECURITY_IS_UNICAST = 1 << 7
+};
+
+struct htt_security_indication {
+	union {
+		/* dont use bitfields; undefined behaviour */
+		u8 flags; /* %htt_security_flags */
+		struct {
+			u8 security_type:7, /* %htt_security_types */
+			   is_unicast:1;
+		} __packed;
+	} __packed;
+	__le16 peer_id;
+	u8 michael_key[8];
+	u8 wapi_rsc[16];
+} __packed;
+
+#define HTT_RX_BA_INFO0_TID_MASK     0x000F
+#define HTT_RX_BA_INFO0_TID_LSB      0
+#define HTT_RX_BA_INFO0_PEER_ID_MASK 0xFFF0
+#define HTT_RX_BA_INFO0_PEER_ID_LSB  4
+
+struct htt_rx_addba {
+	u8 window_size;
+	__le16 info0; /* %HTT_RX_BA_INFO0_ */
+} __packed;
+
+struct htt_rx_delba {
+	u8 rsvd0;
+	__le16 info0; /* %HTT_RX_BA_INFO0_ */
+} __packed;
+
+enum htt_data_tx_status {
+	HTT_DATA_TX_STATUS_OK            = 0,
+	HTT_DATA_TX_STATUS_DISCARD       = 1,
+	HTT_DATA_TX_STATUS_NO_ACK        = 2,
+	HTT_DATA_TX_STATUS_POSTPONE      = 3, /* HL only */
+	HTT_DATA_TX_STATUS_DOWNLOAD_FAIL = 128
+};
+
+enum htt_data_tx_flags {
+#define HTT_DATA_TX_STATUS_MASK 0x07
+#define HTT_DATA_TX_STATUS_LSB  0
+#define HTT_DATA_TX_TID_MASK    0x78
+#define HTT_DATA_TX_TID_LSB     3
+	HTT_DATA_TX_TID_INVALID = 1 << 7
+};
+
+#define HTT_TX_COMPL_INV_MSDU_ID 0xFFFF
+
+struct htt_data_tx_completion {
+	union {
+		u8 flags;
+		struct {
+			u8 status:3,
+			   tid:4,
+			   tid_invalid:1;
+		} __packed;
+	} __packed;
+	u8 num_msdus;
+	u8 rsvd0;
+	__le16 msdus[0]; /* variable length based on %num_msdus */
+} __packed;
+
+struct htt_tx_compl_ind_base {
+	u32 hdr;
+	u16 payload[1/*or more*/];
+} __packed;
+
+struct htt_rc_tx_done_params {
+	u32 rate_code;
+	u32 rate_code_flags;
+	u32 flags;
+	u32 num_enqued; /* 1 for non-AMPDU */
+	u32 num_retries;
+	u32 num_failed; /* for AMPDU */
+	u32 ack_rssi;
+	u32 time_stamp;
+	u32 is_probe;
+};
+
+struct htt_rc_update {
+	u8 vdev_id;
+	__le16 peer_id;
+	u8 addr[6];
+	u8 num_elems;
+	u8 rsvd0;
+	struct htt_rc_tx_done_params params[0]; /* variable length %num_elems */
+} __packed;
+
+/* see htt_rx_indication for similar fields and descriptions */
+struct htt_rx_fragment_indication {
+	union {
+		u8 info0; /* %HTT_RX_FRAG_IND_INFO0_ */
+		struct {
+			u8 ext_tid:5,
+			   flush_valid:1;
+		} __packed;
+	} __packed;
+	__le16 peer_id;
+	__le32 info1; /* %HTT_RX_FRAG_IND_INFO1_ */
+	__le16 fw_rx_desc_bytes;
+	__le16 rsvd0;
+
+	u8 fw_msdu_rx_desc[0];
+} __packed;
+
+#define HTT_RX_FRAG_IND_INFO0_EXT_TID_MASK     0x1F
+#define HTT_RX_FRAG_IND_INFO0_EXT_TID_LSB      0
+#define HTT_RX_FRAG_IND_INFO0_FLUSH_VALID_MASK 0x20
+#define HTT_RX_FRAG_IND_INFO0_FLUSH_VALID_LSB  5
+
+#define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_START_MASK 0x0000003F
+#define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_START_LSB  0
+#define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_END_MASK   0x00000FC0
+#define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_END_LSB    6
+
+/*
+ * target -> host test message definition
+ *
+ * The following field definitions describe the format of the test
+ * message sent from the target to the host.
+ * The message consists of a 4-octet header, followed by a variable
+ * number of 32-bit integer values, followed by a variable number
+ * of 8-bit character values.
+ *
+ * |31                         16|15           8|7            0|
+ * |-----------------------------------------------------------|
+ * |          num chars          |   num ints   |   msg type   |
+ * |-----------------------------------------------------------|
+ * |                           int 0                           |
+ * |-----------------------------------------------------------|
+ * |                           int 1                           |
+ * |-----------------------------------------------------------|
+ * |                            ...                            |
+ * |-----------------------------------------------------------|
+ * |    char 3    |    char 2    |    char 1    |    char 0    |
+ * |-----------------------------------------------------------|
+ * |              |              |      ...     |    char 4    |
+ * |-----------------------------------------------------------|
+ *   - MSG_TYPE
+ *     Bits 7:0
+ *     Purpose: identifies this as a test message
+ *     Value: HTT_MSG_TYPE_TEST
+ *   - NUM_INTS
+ *     Bits 15:8
+ *     Purpose: indicate how many 32-bit integers follow the message header
+ *   - NUM_CHARS
+ *     Bits 31:16
+ *     Purpose: indicate how many 8-bit charaters follow the series of integers
+ */
+struct htt_rx_test {
+	u8 num_ints;
+	__le16 num_chars;
+
+	/* payload consists of 2 lists:
+	 *  a) num_ints * sizeof(__le32)
+	 *  b) num_chars * sizeof(u8) aligned to 4bytes */
+	u8 payload[0];
+} __packed;
+
+static inline __le32 *htt_rx_test_get_ints(struct htt_rx_test *rx_test)
+{
+	return (__le32 *)rx_test->payload;
+}
+
+static inline u8 *htt_rx_test_get_chars(struct htt_rx_test *rx_test)
+{
+	return rx_test->payload + (rx_test->num_ints * sizeof(__le32));
+}
+
+/*
+ * target -> host packet log message
+ *
+ * The following field definitions describe the format of the packet log
+ * message sent from the target to the host.
+ * The message consists of a 4-octet header,followed by a variable number
+ * of 32-bit character values.
+ *
+ * |31          24|23          16|15           8|7            0|
+ * |-----------------------------------------------------------|
+ * |              |              |              |   msg type   |
+ * |-----------------------------------------------------------|
+ * |                        payload                            |
+ * |-----------------------------------------------------------|
+ *   - MSG_TYPE
+ *     Bits 7:0
+ *     Purpose: identifies this as a test message
+ *     Value: HTT_MSG_TYPE_PACKETLOG
+ */
+struct htt_pktlog_msg {
+	u8 pad[3];
+	__le32 payload[1 /* or more */];
+} __packed;
+
+struct htt_dbg_stats_rx_reorder_stats {
+	/* Non QoS MPDUs received */
+	__le32 deliver_non_qos;
+
+	/* MPDUs received in-order */
+	__le32 deliver_in_order;
+
+	/* Flush due to reorder timer expired */
+	__le32 deliver_flush_timeout;
+
+	/* Flush due to move out of window */
+	__le32 deliver_flush_oow;
+
+	/* Flush due to DELBA */
+	__le32 deliver_flush_delba;
+
+	/* MPDUs dropped due to FCS error */
+	__le32 fcs_error;
+
+	/* MPDUs dropped due to monitor mode non-data packet */
+	__le32 mgmt_ctrl;
+
+	/* MPDUs dropped due to invalid peer */
+	__le32 invalid_peer;
+
+	/* MPDUs dropped due to duplication (non aggregation) */
+	__le32 dup_non_aggr;
+
+	/* MPDUs dropped due to processed before */
+	__le32 dup_past;
+
+	/* MPDUs dropped due to duplicate in reorder queue */
+	__le32 dup_in_reorder;
+
+	/* Reorder timeout happened */
+	__le32 reorder_timeout;
+
+	/* invalid bar ssn */
+	__le32 invalid_bar_ssn;
+
+	/* reorder reset due to bar ssn */
+	__le32 ssn_reset;
+};
+
+struct htt_dbg_stats_wal_tx_stats {
+	/* Num HTT cookies queued to dispatch list */
+	__le32 comp_queued;
+
+	/* Num HTT cookies dispatched */
+	__le32 comp_delivered;
+
+	/* Num MSDU queued to WAL */
+	__le32 msdu_enqued;
+
+	/* Num MPDU queue to WAL */
+	__le32 mpdu_enqued;
+
+	/* Num MSDUs dropped by WMM limit */
+	__le32 wmm_drop;
+
+	/* Num Local frames queued */
+	__le32 local_enqued;
+
+	/* Num Local frames done */
+	__le32 local_freed;
+
+	/* Num queued to HW */
+	__le32 hw_queued;
+
+	/* Num PPDU reaped from HW */
+	__le32 hw_reaped;
+
+	/* Num underruns */
+	__le32 underrun;
+
+	/* Num PPDUs cleaned up in TX abort */
+	__le32 tx_abort;
+
+	/* Num MPDUs requed by SW */
+	__le32 mpdus_requed;
+
+	/* excessive retries */
+	__le32 tx_ko;
+
+	/* data hw rate code */
+	__le32 data_rc;
+
+	/* Scheduler self triggers */
+	__le32 self_triggers;
+
+	/* frames dropped due to excessive sw retries */
+	__le32 sw_retry_failure;
+
+	/* illegal rate phy errors  */
+	__le32 illgl_rate_phy_err;
+
+	/* wal pdev continous xretry */
+	__le32 pdev_cont_xretry;
+
+	/* wal pdev continous xretry */
+	__le32 pdev_tx_timeout;
+
+	/* wal pdev resets  */
+	__le32 pdev_resets;
+
+	__le32 phy_underrun;
+
+	/* MPDU is more than txop limit */
+	__le32 txop_ovf;
+} __packed;
+
+struct htt_dbg_stats_wal_rx_stats {
+	/* Cnts any change in ring routing mid-ppdu */
+	__le32 mid_ppdu_route_change;
+
+	/* Total number of statuses processed */
+	__le32 status_rcvd;
+
+	/* Extra frags on rings 0-3 */
+	__le32 r0_frags;
+	__le32 r1_frags;
+	__le32 r2_frags;
+	__le32 r3_frags;
+
+	/* MSDUs / MPDUs delivered to HTT */
+	__le32 htt_msdus;
+	__le32 htt_mpdus;
+
+	/* MSDUs / MPDUs delivered to local stack */
+	__le32 loc_msdus;
+	__le32 loc_mpdus;
+
+	/* AMSDUs that have more MSDUs than the status ring size */
+	__le32 oversize_amsdu;
+
+	/* Number of PHY errors */
+	__le32 phy_errs;
+
+	/* Number of PHY errors drops */
+	__le32 phy_err_drop;
+
+	/* Number of mpdu errors - FCS, MIC, ENC etc. */
+	__le32 mpdu_errs;
+} __packed;
+
+struct htt_dbg_stats_wal_peer_stats {
+	__le32 dummy; /* REMOVE THIS ONCE REAL PEER STAT COUNTERS ARE ADDED */
+} __packed;
+
+struct htt_dbg_stats_wal_pdev_txrx {
+	struct htt_dbg_stats_wal_tx_stats tx_stats;
+	struct htt_dbg_stats_wal_rx_stats rx_stats;
+	struct htt_dbg_stats_wal_peer_stats peer_stats;
+} __packed;
+
+struct htt_dbg_stats_rx_rate_info {
+	__le32 mcs[10];
+	__le32 sgi[10];
+	__le32 nss[4];
+	__le32 stbc[10];
+	__le32 bw[3];
+	__le32 pream[6];
+	__le32 ldpc;
+	__le32 txbf;
+};
+
+/*
+ * htt_dbg_stats_status -
+ * present -     The requested stats have been delivered in full.
+ *               This indicates that either the stats information was contained
+ *               in its entirety within this message, or else this message
+ *               completes the delivery of the requested stats info that was
+ *               partially delivered through earlier STATS_CONF messages.
+ * partial -     The requested stats have been delivered in part.
+ *               One or more subsequent STATS_CONF messages with the same
+ *               cookie value will be sent to deliver the remainder of the
+ *               information.
+ * error -       The requested stats could not be delivered, for example due
+ *               to a shortage of memory to construct a message holding the
+ *               requested stats.
+ * invalid -     The requested stat type is either not recognized, or the
+ *               target is configured to not gather the stats type in question.
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * series_done - This special value indicates that no further stats info
+ *               elements are present within a series of stats info elems
+ *               (within a stats upload confirmation message).
+ */
+enum htt_dbg_stats_status {
+	HTT_DBG_STATS_STATUS_PRESENT     = 0,
+	HTT_DBG_STATS_STATUS_PARTIAL     = 1,
+	HTT_DBG_STATS_STATUS_ERROR       = 2,
+	HTT_DBG_STATS_STATUS_INVALID     = 3,
+	HTT_DBG_STATS_STATUS_SERIES_DONE = 7
+};
+
+/*
+ * target -> host statistics upload
+ *
+ * The following field definitions describe the format of the HTT target
+ * to host stats upload confirmation message.
+ * The message contains a cookie echoed from the HTT host->target stats
+ * upload request, which identifies which request the confirmation is
+ * for, and a series of tag-length-value stats information elements.
+ * The tag-length header for each stats info element also includes a
+ * status field, to indicate whether the request for the stat type in
+ * question was fully met, partially met, unable to be met, or invalid
+ * (if the stat type in question is disabled in the target).
+ * A special value of all 1's in this status field is used to indicate
+ * the end of the series of stats info elements.
+ *
+ *
+ * |31                         16|15           8|7   5|4       0|
+ * |------------------------------------------------------------|
+ * |                  reserved                  |    msg type   |
+ * |------------------------------------------------------------|
+ * |                        cookie LSBs                         |
+ * |------------------------------------------------------------|
+ * |                        cookie MSBs                         |
+ * |------------------------------------------------------------|
+ * |      stats entry length     |   reserved   |  S  |stat type|
+ * |------------------------------------------------------------|
+ * |                                                            |
+ * |                  type-specific stats info                  |
+ * |                                                            |
+ * |------------------------------------------------------------|
+ * |      stats entry length     |   reserved   |  S  |stat type|
+ * |------------------------------------------------------------|
+ * |                                                            |
+ * |                  type-specific stats info                  |
+ * |                                                            |
+ * |------------------------------------------------------------|
+ * |              n/a            |   reserved   | 111 |   n/a   |
+ * |------------------------------------------------------------|
+ * Header fields:
+ *  - MSG_TYPE
+ *    Bits 7:0
+ *    Purpose: identifies this is a statistics upload confirmation message
+ *    Value: 0x9
+ *  - COOKIE_LSBS
+ *    Bits 31:0
+ *    Purpose: Provide a mechanism to match a target->host stats confirmation
+ *        message with its preceding host->target stats request message.
+ *    Value: LSBs of the opaque cookie specified by the host-side requestor
+ *  - COOKIE_MSBS
+ *    Bits 31:0
+ *    Purpose: Provide a mechanism to match a target->host stats confirmation
+ *        message with its preceding host->target stats request message.
+ *    Value: MSBs of the opaque cookie specified by the host-side requestor
+ *
+ * Stats Information Element tag-length header fields:
+ *  - STAT_TYPE
+ *    Bits 4:0
+ *    Purpose: identifies the type of statistics info held in the
+ *        following information element
+ *    Value: htt_dbg_stats_type
+ *  - STATUS
+ *    Bits 7:5
+ *    Purpose: indicate whether the requested stats are present
+ *    Value: htt_dbg_stats_status, including a special value (0x7) to mark
+ *        the completion of the stats entry series
+ *  - LENGTH
+ *    Bits 31:16
+ *    Purpose: indicate the stats information size
+ *    Value: This field specifies the number of bytes of stats information
+ *       that follows the element tag-length header.
+ *       It is expected but not required that this length is a multiple of
+ *       4 bytes.  Even if the length is not an integer multiple of 4, the
+ *       subsequent stats entry header will begin on a 4-byte aligned
+ *       boundary.
+ */
+
+#define HTT_STATS_CONF_ITEM_INFO_STAT_TYPE_MASK 0x1F
+#define HTT_STATS_CONF_ITEM_INFO_STAT_TYPE_LSB  0
+#define HTT_STATS_CONF_ITEM_INFO_STATUS_MASK    0xE0
+#define HTT_STATS_CONF_ITEM_INFO_STATUS_LSB     5
+
+struct htt_stats_conf_item {
+	union {
+		u8 info;
+		struct {
+			u8 stat_type:5; /* %HTT_DBG_STATS_ */
+			u8 status:3; /* %HTT_DBG_STATS_STATUS_ */
+		} __packed;
+	} __packed;
+	u8 pad;
+	__le16 length;
+	u8 payload[0]; /* roundup(length, 4) long */
+} __packed;
+
+struct htt_stats_conf {
+	u8 pad[3];
+	__le32 cookie_lsb;
+	__le32 cookie_msb;
+
+	/* each item has variable length! */
+	struct htt_stats_conf_item items[0];
+} __packed;
+
+static inline struct htt_stats_conf_item *htt_stats_conf_next_item(
+					const struct htt_stats_conf_item *item)
+{
+	return (void *)item + sizeof(*item) + roundup(item->length, 4);
+}
+/*
+ * host -> target FRAG DESCRIPTOR/MSDU_EXT DESC bank
+ *
+ * The following field definitions describe the format of the HTT host
+ * to target frag_desc/msdu_ext bank configuration message.
+ * The message contains the based address and the min and max id of the
+ * MSDU_EXT/FRAG_DESC that will be used by the HTT to map MSDU DESC and
+ * MSDU_EXT/FRAG_DESC.
+ * HTT will use id in HTT descriptor instead sending the frag_desc_ptr.
+ * For QCA988X HW the firmware will use fragment_desc_ptr but in WIFI2.0
+ * the hardware does the mapping/translation.
+ *
+ * Total banks that can be configured is configured to 16.
+ *
+ * This should be called before any TX has be initiated by the HTT
+ *
+ * |31                         16|15           8|7   5|4       0|
+ * |------------------------------------------------------------|
+ * | DESC_SIZE    |  NUM_BANKS   | RES |SWP|pdev|    msg type   |
+ * |------------------------------------------------------------|
+ * |                     BANK0_BASE_ADDRESS                     |
+ * |------------------------------------------------------------|
+ * |                            ...                             |
+ * |------------------------------------------------------------|
+ * |                    BANK15_BASE_ADDRESS                     |
+ * |------------------------------------------------------------|
+ * |       BANK0_MAX_ID          |       BANK0_MIN_ID           |
+ * |------------------------------------------------------------|
+ * |                            ...                             |
+ * |------------------------------------------------------------|
+ * |       BANK15_MAX_ID         |       BANK15_MIN_ID          |
+ * |------------------------------------------------------------|
+ * Header fields:
+ *  - MSG_TYPE
+ *    Bits 7:0
+ *    Value: 0x6
+ *  - BANKx_BASE_ADDRESS
+ *    Bits 31:0
+ *    Purpose: Provide a mechanism to specify the base address of the MSDU_EXT
+ *         bank physical/bus address.
+ *  - BANKx_MIN_ID
+ *    Bits 15:0
+ *    Purpose: Provide a mechanism to specify the min index that needs to
+ *          mapped.
+ *  - BANKx_MAX_ID
+ *    Bits 31:16
+ *    Purpose: Provide a mechanism to specify the max index that needs to
+ *
+ */
+struct htt_frag_desc_bank_id {
+	__le16 bank_min_id;
+	__le16 bank_max_id;
+} __packed;
+
+/* real is 16 but it wouldn't fit in the max htt message size
+ * so we use a conservatively safe value for now */
+#define HTT_FRAG_DESC_BANK_MAX 4
+
+#define HTT_FRAG_DESC_BANK_CFG_INFO_PDEV_ID_MASK 0x03
+#define HTT_FRAG_DESC_BANK_CFG_INFO_PDEV_ID_LSB  0
+#define HTT_FRAG_DESC_BANK_CFG_INFO_SWAP         (1 << 2)
+
+struct htt_frag_desc_bank_cfg {
+	u8 info; /* HTT_FRAG_DESC_BANK_CFG_INFO_ */
+	u8 num_banks;
+	u8 desc_size;
+	__le32 bank_base_addrs[HTT_FRAG_DESC_BANK_MAX];
+	struct htt_frag_desc_bank_id bank_id[HTT_FRAG_DESC_BANK_MAX];
+} __packed;
+
+union htt_rx_pn_t {
+	/* WEP: 24-bit PN */
+	u32 pn24;
+
+	/* TKIP or CCMP: 48-bit PN */
+	u_int64_t pn48;
+
+	/* WAPI: 128-bit PN */
+	u_int64_t pn128[2];
+};
+
+struct htt_cmd {
+	struct htt_cmd_hdr hdr;
+	union {
+		struct htt_ver_req ver_req;
+		struct htt_mgmt_tx_desc mgmt_tx;
+		struct htt_data_tx_desc data_tx;
+		struct htt_rx_ring_setup rx_setup;
+		struct htt_stats_req stats_req;
+		struct htt_oob_sync_req oob_sync_req;
+		struct htt_aggr_conf aggr_conf;
+		struct htt_frag_desc_bank_cfg frag_desc_bank_cfg;
+	};
+} __packed;
+
+struct htt_resp {
+	struct htt_resp_hdr hdr;
+	union {
+		struct htt_ver_resp ver_resp;
+		struct htt_mgmt_tx_completion mgmt_tx_completion;
+		struct htt_data_tx_completion data_tx_completion;
+		struct htt_rx_indication rx_ind;
+		struct htt_rx_fragment_indication rx_frag_ind;
+		struct htt_rx_peer_map peer_map;
+		struct htt_rx_peer_unmap peer_unmap;
+		struct htt_rx_flush rx_flush;
+		struct htt_rx_addba rx_addba;
+		struct htt_rx_delba rx_delba;
+		struct htt_security_indication security_indication;
+		struct htt_rc_update rc_update;
+		struct htt_rx_test rx_test;
+		struct htt_pktlog_msg pktlog_msg;
+		struct htt_stats_conf stats_conf;
+	};
+} __packed;
+
+
+/*** host side structures follow ***/
+
+struct htt_tx_done {
+	u32 msdu_id;
+	bool discard;
+	bool no_ack;
+};
+
+struct htt_peer_map_event {
+	u8 vdev_id;
+	u16 peer_id;
+	u8 addr[ETH_ALEN];
+};
+
+struct htt_peer_unmap_event {
+	u16 peer_id;
+};
+
+struct htt_rx_info {
+	struct sk_buff *skb;
+	enum htt_rx_mpdu_status status;
+	enum htt_rx_mpdu_encrypt_type encrypt_type;
+	s8 signal;
+	struct {
+		u8 info0;
+		u32 info1;
+		u32 info2;
+	} rate;
+	bool fcs_err;
+};
+
+struct ath10k_htt {
+	struct ath10k *ar;
+	enum ath10k_htc_ep_id eid;
+
+	int max_throughput_mbps;
+	u8 target_version_major;
+	u8 target_version_minor;
+	struct completion target_version_received;
+
+	struct {
+		/*
+		 * Ring of network buffer objects - This ring is
+		 * used exclusively by the host SW. This ring
+		 * mirrors the dev_addrs_ring that is shared
+		 * between the host SW and the MAC HW. The host SW
+		 * uses this netbufs ring to locate the network
+		 * buffer objects whose data buffers the HW has
+		 * filled.
+		 */
+		struct sk_buff **netbufs_ring;
+		/*
+		 * Ring of buffer addresses -
+		 * This ring holds the "physical" device address of the
+		 * rx buffers the host SW provides for the MAC HW to
+		 * fill.
+		 */
+		__le32 *paddrs_ring;
+
+		/*
+		 * Base address of ring, as a "physical" device address
+		 * rather than a CPU address.
+		 */
+		dma_addr_t base_paddr;
+
+		/* how many elems in the ring (power of 2) */
+		int size;
+
+		/* size - 1 */
+		unsigned size_mask;
+
+		/* how many rx buffers to keep in the ring */
+		int fill_level;
+
+		/* how many rx buffers (full+empty) are in the ring */
+		int fill_cnt;
+
+		/*
+		 * alloc_idx - where HTT SW has deposited empty buffers
+		 * This is allocated in consistent mem, so that the FW can
+		 * read this variable, and program the HW's FW_IDX reg with
+		 * the value of this shadow register.
+		 */
+		struct {
+			__le32 *vaddr;
+			dma_addr_t paddr;
+		} alloc_idx;
+
+		/* where HTT SW has processed bufs filled by rx MAC DMA */
+		struct {
+			unsigned msdu_payld;
+		} sw_rd_idx;
+
+		/*
+		 * refill_retry_timer - timer triggered when the ring is
+		 * not refilled to the level expected
+		 */
+		struct timer_list refill_retry_timer;
+
+		/* Protects access to all rx ring buffer state variables */
+		spinlock_t lock;
+	} rx_ring;
+
+	unsigned int prefetch_len;
+
+	/* Protects access to %pending_tx, %used_msdu_ids */
+	spinlock_t tx_lock;
+	int max_num_pending_tx;
+	int num_pending_tx;
+	struct sk_buff **pending_tx;
+	unsigned long *used_msdu_ids; /* bitmap */
+	wait_queue_head_t empty_tx_wq;
+
+	/* set if host-fw communication goes haywire
+	 * used to avoid further failures */
+	bool rx_confused;
+};
+
+#define RX_HTT_HDR_STATUS_LEN 64
+
+/* This structure layout is programmed via rx ring setup
+ * so that FW knows how to transfer the rx descriptor to the host.
+ * Buffers like this are placed on the rx ring. */
+struct htt_rx_desc {
+	union {
+		/* This field is filled on the host using the msdu buffer
+		 * from htt_rx_indication */
+		struct fw_rx_desc_base fw_desc;
+		u32 pad;
+	} __packed;
+	struct {
+		struct rx_attention attention;
+		struct rx_frag_info frag_info;
+		struct rx_mpdu_start mpdu_start;
+		struct rx_msdu_start msdu_start;
+		struct rx_msdu_end msdu_end;
+		struct rx_mpdu_end mpdu_end;
+		struct rx_ppdu_start ppdu_start;
+		struct rx_ppdu_end ppdu_end;
+	} __packed;
+	u8 rx_hdr_status[RX_HTT_HDR_STATUS_LEN];
+	u8 msdu_payload[0];
+};
+
+#define HTT_RX_DESC_ALIGN 8
+
+#define HTT_MAC_ADDR_LEN 6
+
+/*
+ * FIX THIS
+ * Should be: sizeof(struct htt_host_rx_desc) + max rx MSDU size,
+ * rounded up to a cache line size.
+ */
+#define HTT_RX_BUF_SIZE 1920
+#define HTT_RX_MSDU_SIZE (HTT_RX_BUF_SIZE - (int)sizeof(struct htt_rx_desc))
+
+/*
+ * DMA_MAP expects the buffer to be an integral number of cache lines.
+ * Rather than checking the actual cache line size, this code makes a
+ * conservative estimate of what the cache line size could be.
+ */
+#define HTT_LOG2_MAX_CACHE_LINE_SIZE 7	/* 2^7 = 128 */
+#define HTT_MAX_CACHE_LINE_SIZE_MASK ((1 << HTT_LOG2_MAX_CACHE_LINE_SIZE) - 1)
+
+struct ath10k_htt *ath10k_htt_attach(struct ath10k *ar);
+int ath10k_htt_attach_target(struct ath10k_htt *htt);
+void ath10k_htt_detach(struct ath10k_htt *htt);
+
+int ath10k_htt_tx_attach(struct ath10k_htt *htt);
+void ath10k_htt_tx_detach(struct ath10k_htt *htt);
+int ath10k_htt_rx_attach(struct ath10k_htt *htt);
+void ath10k_htt_rx_detach(struct ath10k_htt *htt);
+void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb);
+void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb);
+int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt);
+int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt);
+
+void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt);
+int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt);
+void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id);
+int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *);
+int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *);
+#endif
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
new file mode 100644
index 0000000..de058d7
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -0,0 +1,1167 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "htc.h"
+#include "htt.h"
+#include "txrx.h"
+#include "debug.h"
+
+#include <linux/log2.h>
+
+/* slightly larger than one large A-MPDU */
+#define HTT_RX_RING_SIZE_MIN 128
+
+/* roughly 20 ms @ 1 Gbps of 1500B MSDUs */
+#define HTT_RX_RING_SIZE_MAX 2048
+
+#define HTT_RX_AVG_FRM_BYTES 1000
+
+/* ms, very conservative */
+#define HTT_RX_HOST_LATENCY_MAX_MS 20
+
+/* ms, conservative */
+#define HTT_RX_HOST_LATENCY_WORST_LIKELY_MS 10
+
+/* when under memory pressure rx ring refill may fail and needs a retry */
+#define HTT_RX_RING_REFILL_RETRY_MS 50
+
+static int ath10k_htt_rx_ring_size(struct ath10k_htt *htt)
+{
+	int size;
+
+	/*
+	 * It is expected that the host CPU will typically be able to
+	 * service the rx indication from one A-MPDU before the rx
+	 * indication from the subsequent A-MPDU happens, roughly 1-2 ms
+	 * later. However, the rx ring should be sized very conservatively,
+	 * to accomodate the worst reasonable delay before the host CPU
+	 * services a rx indication interrupt.
+	 *
+	 * The rx ring need not be kept full of empty buffers. In theory,
+	 * the htt host SW can dynamically track the low-water mark in the
+	 * rx ring, and dynamically adjust the level to which the rx ring
+	 * is filled with empty buffers, to dynamically meet the desired
+	 * low-water mark.
+	 *
+	 * In contrast, it's difficult to resize the rx ring itself, once
+	 * it's in use. Thus, the ring itself should be sized very
+	 * conservatively, while the degree to which the ring is filled
+	 * with empty buffers should be sized moderately conservatively.
+	 */
+
+	/* 1e6 bps/mbps / 1e3 ms per sec = 1000 */
+	size =
+	    htt->max_throughput_mbps +
+	    1000  /
+	    (8 * HTT_RX_AVG_FRM_BYTES) * HTT_RX_HOST_LATENCY_MAX_MS;
+
+	if (size < HTT_RX_RING_SIZE_MIN)
+		size = HTT_RX_RING_SIZE_MIN;
+
+	if (size > HTT_RX_RING_SIZE_MAX)
+		size = HTT_RX_RING_SIZE_MAX;
+
+	size = roundup_pow_of_two(size);
+
+	return size;
+}
+
+static int ath10k_htt_rx_ring_fill_level(struct ath10k_htt *htt)
+{
+	int size;
+
+	/* 1e6 bps/mbps / 1e3 ms per sec = 1000 */
+	size =
+	    htt->max_throughput_mbps *
+	    1000  /
+	    (8 * HTT_RX_AVG_FRM_BYTES) * HTT_RX_HOST_LATENCY_WORST_LIKELY_MS;
+
+	/*
+	 * Make sure the fill level is at least 1 less than the ring size.
+	 * Leaving 1 element empty allows the SW to easily distinguish
+	 * between a full ring vs. an empty ring.
+	 */
+	if (size >= htt->rx_ring.size)
+		size = htt->rx_ring.size - 1;
+
+	return size;
+}
+
+static void ath10k_htt_rx_ring_free(struct ath10k_htt *htt)
+{
+	struct sk_buff *skb;
+	struct ath10k_skb_cb *cb;
+	int i;
+
+	for (i = 0; i < htt->rx_ring.fill_cnt; i++) {
+		skb = htt->rx_ring.netbufs_ring[i];
+		cb = ATH10K_SKB_CB(skb);
+		dma_unmap_single(htt->ar->dev, cb->paddr,
+				 skb->len + skb_tailroom(skb),
+				 DMA_FROM_DEVICE);
+		dev_kfree_skb_any(skb);
+	}
+
+	htt->rx_ring.fill_cnt = 0;
+}
+
+static int __ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num)
+{
+	struct htt_rx_desc *rx_desc;
+	struct sk_buff *skb;
+	dma_addr_t paddr;
+	int ret = 0, idx;
+
+	idx = __le32_to_cpu(*(htt->rx_ring.alloc_idx.vaddr));
+	while (num > 0) {
+		skb = dev_alloc_skb(HTT_RX_BUF_SIZE + HTT_RX_DESC_ALIGN);
+		if (!skb) {
+			ret = -ENOMEM;
+			goto fail;
+		}
+
+		if (!IS_ALIGNED((unsigned long)skb->data, HTT_RX_DESC_ALIGN))
+			skb_pull(skb,
+				 PTR_ALIGN(skb->data, HTT_RX_DESC_ALIGN) -
+				 skb->data);
+
+		/* Clear rx_desc attention word before posting to Rx ring */
+		rx_desc = (struct htt_rx_desc *)skb->data;
+		rx_desc->attention.flags = __cpu_to_le32(0);
+
+		paddr = dma_map_single(htt->ar->dev, skb->data,
+				       skb->len + skb_tailroom(skb),
+				       DMA_FROM_DEVICE);
+
+		if (unlikely(dma_mapping_error(htt->ar->dev, paddr))) {
+			dev_kfree_skb_any(skb);
+			ret = -ENOMEM;
+			goto fail;
+		}
+
+		ATH10K_SKB_CB(skb)->paddr = paddr;
+		htt->rx_ring.netbufs_ring[idx] = skb;
+		htt->rx_ring.paddrs_ring[idx] = __cpu_to_le32(paddr);
+		htt->rx_ring.fill_cnt++;
+
+		num--;
+		idx++;
+		idx &= htt->rx_ring.size_mask;
+	}
+
+fail:
+	*(htt->rx_ring.alloc_idx.vaddr) = __cpu_to_le32(idx);
+	return ret;
+}
+
+static int ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num)
+{
+	lockdep_assert_held(&htt->rx_ring.lock);
+	return __ath10k_htt_rx_ring_fill_n(htt, num);
+}
+
+static void ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt *htt)
+{
+	int ret, num_to_fill;
+
+	spin_lock_bh(&htt->rx_ring.lock);
+	num_to_fill = htt->rx_ring.fill_level - htt->rx_ring.fill_cnt;
+	ret = ath10k_htt_rx_ring_fill_n(htt, num_to_fill);
+	if (ret == -ENOMEM) {
+		/*
+		 * Failed to fill it to the desired level -
+		 * we'll start a timer and try again next time.
+		 * As long as enough buffers are left in the ring for
+		 * another A-MPDU rx, no special recovery is needed.
+		 */
+		mod_timer(&htt->rx_ring.refill_retry_timer, jiffies +
+			  msecs_to_jiffies(HTT_RX_RING_REFILL_RETRY_MS));
+	}
+	spin_unlock_bh(&htt->rx_ring.lock);
+}
+
+static void ath10k_htt_rx_ring_refill_retry(unsigned long arg)
+{
+	struct ath10k_htt *htt = (struct ath10k_htt *)arg;
+	ath10k_htt_rx_msdu_buff_replenish(htt);
+}
+
+static unsigned ath10k_htt_rx_ring_elems(struct ath10k_htt *htt)
+{
+	return (__le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr) -
+		htt->rx_ring.sw_rd_idx.msdu_payld) & htt->rx_ring.size_mask;
+}
+
+void ath10k_htt_rx_detach(struct ath10k_htt *htt)
+{
+	int sw_rd_idx = htt->rx_ring.sw_rd_idx.msdu_payld;
+
+	del_timer_sync(&htt->rx_ring.refill_retry_timer);
+
+	while (sw_rd_idx != __le32_to_cpu(*(htt->rx_ring.alloc_idx.vaddr))) {
+		struct sk_buff *skb =
+				htt->rx_ring.netbufs_ring[sw_rd_idx];
+		struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
+
+		dma_unmap_single(htt->ar->dev, cb->paddr,
+				 skb->len + skb_tailroom(skb),
+				 DMA_FROM_DEVICE);
+		dev_kfree_skb_any(htt->rx_ring.netbufs_ring[sw_rd_idx]);
+		sw_rd_idx++;
+		sw_rd_idx &= htt->rx_ring.size_mask;
+	}
+
+	dma_free_coherent(htt->ar->dev,
+			  (htt->rx_ring.size *
+			   sizeof(htt->rx_ring.paddrs_ring)),
+			  htt->rx_ring.paddrs_ring,
+			  htt->rx_ring.base_paddr);
+
+	dma_free_coherent(htt->ar->dev,
+			  sizeof(*htt->rx_ring.alloc_idx.vaddr),
+			  htt->rx_ring.alloc_idx.vaddr,
+			  htt->rx_ring.alloc_idx.paddr);
+
+	kfree(htt->rx_ring.netbufs_ring);
+}
+
+static inline struct sk_buff *ath10k_htt_rx_netbuf_pop(struct ath10k_htt *htt)
+{
+	int idx;
+	struct sk_buff *msdu;
+
+	spin_lock_bh(&htt->rx_ring.lock);
+
+	if (ath10k_htt_rx_ring_elems(htt) == 0)
+		ath10k_warn("htt rx ring is empty!\n");
+
+	idx = htt->rx_ring.sw_rd_idx.msdu_payld;
+	msdu = htt->rx_ring.netbufs_ring[idx];
+
+	idx++;
+	idx &= htt->rx_ring.size_mask;
+	htt->rx_ring.sw_rd_idx.msdu_payld = idx;
+	htt->rx_ring.fill_cnt--;
+
+	spin_unlock_bh(&htt->rx_ring.lock);
+	return msdu;
+}
+
+static void ath10k_htt_rx_free_msdu_chain(struct sk_buff *skb)
+{
+	struct sk_buff *next;
+
+	while (skb) {
+		next = skb->next;
+		dev_kfree_skb_any(skb);
+		skb = next;
+	}
+}
+
+static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
+				   u8 **fw_desc, int *fw_desc_len,
+				   struct sk_buff **head_msdu,
+				   struct sk_buff **tail_msdu)
+{
+	int msdu_len, msdu_chaining = 0;
+	struct sk_buff *msdu;
+	struct htt_rx_desc *rx_desc;
+
+	if (ath10k_htt_rx_ring_elems(htt) == 0)
+		ath10k_warn("htt rx ring is empty!\n");
+
+	if (htt->rx_confused) {
+		ath10k_warn("htt is confused. refusing rx\n");
+		return 0;
+	}
+
+	msdu = *head_msdu = ath10k_htt_rx_netbuf_pop(htt);
+	while (msdu) {
+		int last_msdu, msdu_len_invalid, msdu_chained;
+
+		dma_unmap_single(htt->ar->dev,
+				 ATH10K_SKB_CB(msdu)->paddr,
+				 msdu->len + skb_tailroom(msdu),
+				 DMA_FROM_DEVICE);
+
+		ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx: ",
+				msdu->data, msdu->len + skb_tailroom(msdu));
+
+		rx_desc = (struct htt_rx_desc *)msdu->data;
+
+		/* FIXME: we must report msdu payload since this is what caller
+		 *        expects now */
+		skb_put(msdu, offsetof(struct htt_rx_desc, msdu_payload));
+		skb_pull(msdu, offsetof(struct htt_rx_desc, msdu_payload));
+
+		/*
+		 * Sanity check - confirm the HW is finished filling in the
+		 * rx data.
+		 * If the HW and SW are working correctly, then it's guaranteed
+		 * that the HW's MAC DMA is done before this point in the SW.
+		 * To prevent the case that we handle a stale Rx descriptor,
+		 * just assert for now until we have a way to recover.
+		 */
+		if (!(__le32_to_cpu(rx_desc->attention.flags)
+				& RX_ATTENTION_FLAGS_MSDU_DONE)) {
+			ath10k_htt_rx_free_msdu_chain(*head_msdu);
+			*head_msdu = NULL;
+			msdu = NULL;
+			ath10k_err("htt rx stopped. cannot recover\n");
+			htt->rx_confused = true;
+			break;
+		}
+
+		/*
+		 * Copy the FW rx descriptor for this MSDU from the rx
+		 * indication message into the MSDU's netbuf. HL uses the
+		 * same rx indication message definition as LL, and simply
+		 * appends new info (fields from the HW rx desc, and the
+		 * MSDU payload itself). So, the offset into the rx
+		 * indication message only has to account for the standard
+		 * offset of the per-MSDU FW rx desc info within the
+		 * message, and how many bytes of the per-MSDU FW rx desc
+		 * info have already been consumed. (And the endianness of
+		 * the host, since for a big-endian host, the rx ind
+		 * message contents, including the per-MSDU rx desc bytes,
+		 * were byteswapped during upload.)
+		 */
+		if (*fw_desc_len > 0) {
+			rx_desc->fw_desc.info0 = **fw_desc;
+			/*
+			 * The target is expected to only provide the basic
+			 * per-MSDU rx descriptors. Just to be sure, verify
+			 * that the target has not attached extension data
+			 * (e.g. LRO flow ID).
+			 */
+
+			/* or more, if there's extension data */
+			(*fw_desc)++;
+			(*fw_desc_len)--;
+		} else {
+			/*
+			 * When an oversized AMSDU happened, FW will lost
+			 * some of MSDU status - in this case, the FW
+			 * descriptors provided will be less than the
+			 * actual MSDUs inside this MPDU. Mark the FW
+			 * descriptors so that it will still deliver to
+			 * upper stack, if no CRC error for this MPDU.
+			 *
+			 * FIX THIS - the FW descriptors are actually for
+			 * MSDUs in the end of this A-MSDU instead of the
+			 * beginning.
+			 */
+			rx_desc->fw_desc.info0 = 0;
+		}
+
+		msdu_len_invalid = !!(__le32_to_cpu(rx_desc->attention.flags)
+					& (RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR |
+					   RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR));
+		msdu_len = MS(__le32_to_cpu(rx_desc->msdu_start.info0),
+			      RX_MSDU_START_INFO0_MSDU_LENGTH);
+		msdu_chained = rx_desc->frag_info.ring2_more_count;
+
+		if (msdu_len_invalid)
+			msdu_len = 0;
+
+		skb_trim(msdu, 0);
+		skb_put(msdu, min(msdu_len, HTT_RX_MSDU_SIZE));
+		msdu_len -= msdu->len;
+
+		/* FIXME: Do chained buffers include htt_rx_desc or not? */
+		while (msdu_chained--) {
+			struct sk_buff *next = ath10k_htt_rx_netbuf_pop(htt);
+
+			dma_unmap_single(htt->ar->dev,
+					 ATH10K_SKB_CB(next)->paddr,
+					 next->len + skb_tailroom(next),
+					 DMA_FROM_DEVICE);
+
+			ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx: ",
+					next->data,
+					next->len + skb_tailroom(next));
+
+			skb_trim(next, 0);
+			skb_put(next, min(msdu_len, HTT_RX_BUF_SIZE));
+			msdu_len -= next->len;
+
+			msdu->next = next;
+			msdu = next;
+			msdu_chaining = 1;
+		}
+
+		if (msdu_len > 0) {
+			/* This may suggest FW bug? */
+			ath10k_warn("htt rx msdu len not consumed (%d)\n",
+				    msdu_len);
+		}
+
+		last_msdu = __le32_to_cpu(rx_desc->msdu_end.info0) &
+				RX_MSDU_END_INFO0_LAST_MSDU;
+
+		if (last_msdu) {
+			msdu->next = NULL;
+			break;
+		} else {
+			struct sk_buff *next = ath10k_htt_rx_netbuf_pop(htt);
+			msdu->next = next;
+			msdu = next;
+		}
+	}
+	*tail_msdu = msdu;
+
+	/*
+	 * Don't refill the ring yet.
+	 *
+	 * First, the elements popped here are still in use - it is not
+	 * safe to overwrite them until the matching call to
+	 * mpdu_desc_list_next. Second, for efficiency it is preferable to
+	 * refill the rx ring with 1 PPDU's worth of rx buffers (something
+	 * like 32 x 3 buffers), rather than one MPDU's worth of rx buffers
+	 * (something like 3 buffers). Consequently, we'll rely on the txrx
+	 * SW to tell us when it is done pulling all the PPDU's rx buffers
+	 * out of the rx ring, and then refill it just once.
+	 */
+
+	return msdu_chaining;
+}
+
+int ath10k_htt_rx_attach(struct ath10k_htt *htt)
+{
+	dma_addr_t paddr;
+	void *vaddr;
+	struct timer_list *timer = &htt->rx_ring.refill_retry_timer;
+
+	htt->rx_ring.size = ath10k_htt_rx_ring_size(htt);
+	if (!is_power_of_2(htt->rx_ring.size)) {
+		ath10k_warn("htt rx ring size is not power of 2\n");
+		return -EINVAL;
+	}
+
+	htt->rx_ring.size_mask = htt->rx_ring.size - 1;
+
+	/*
+	 * Set the initial value for the level to which the rx ring
+	 * should be filled, based on the max throughput and the
+	 * worst likely latency for the host to fill the rx ring
+	 * with new buffers. In theory, this fill level can be
+	 * dynamically adjusted from the initial value set here, to
+	 * reflect the actual host latency rather than a
+	 * conservative assumption about the host latency.
+	 */
+	htt->rx_ring.fill_level = ath10k_htt_rx_ring_fill_level(htt);
+
+	htt->rx_ring.netbufs_ring =
+		kmalloc(htt->rx_ring.size * sizeof(struct sk_buff *),
+			GFP_KERNEL);
+	if (!htt->rx_ring.netbufs_ring)
+		goto err_netbuf;
+
+	vaddr = dma_alloc_coherent(htt->ar->dev,
+		   (htt->rx_ring.size * sizeof(htt->rx_ring.paddrs_ring)),
+		   &paddr, GFP_DMA);
+	if (!vaddr)
+		goto err_dma_ring;
+
+	htt->rx_ring.paddrs_ring = vaddr;
+	htt->rx_ring.base_paddr = paddr;
+
+	vaddr = dma_alloc_coherent(htt->ar->dev,
+				   sizeof(*htt->rx_ring.alloc_idx.vaddr),
+				   &paddr, GFP_DMA);
+	if (!vaddr)
+		goto err_dma_idx;
+
+	htt->rx_ring.alloc_idx.vaddr = vaddr;
+	htt->rx_ring.alloc_idx.paddr = paddr;
+	htt->rx_ring.sw_rd_idx.msdu_payld = 0;
+	*htt->rx_ring.alloc_idx.vaddr = 0;
+
+	/* Initialize the Rx refill retry timer */
+	setup_timer(timer, ath10k_htt_rx_ring_refill_retry, (unsigned long)htt);
+
+	spin_lock_init(&htt->rx_ring.lock);
+
+	htt->rx_ring.fill_cnt = 0;
+	if (__ath10k_htt_rx_ring_fill_n(htt, htt->rx_ring.fill_level))
+		goto err_fill_ring;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "HTT RX ring size: %d, fill_level: %d\n",
+		   htt->rx_ring.size, htt->rx_ring.fill_level);
+	return 0;
+
+err_fill_ring:
+	ath10k_htt_rx_ring_free(htt);
+	dma_free_coherent(htt->ar->dev,
+			  sizeof(*htt->rx_ring.alloc_idx.vaddr),
+			  htt->rx_ring.alloc_idx.vaddr,
+			  htt->rx_ring.alloc_idx.paddr);
+err_dma_idx:
+	dma_free_coherent(htt->ar->dev,
+			  (htt->rx_ring.size *
+			   sizeof(htt->rx_ring.paddrs_ring)),
+			  htt->rx_ring.paddrs_ring,
+			  htt->rx_ring.base_paddr);
+err_dma_ring:
+	kfree(htt->rx_ring.netbufs_ring);
+err_netbuf:
+	return -ENOMEM;
+}
+
+static int ath10k_htt_rx_crypto_param_len(enum htt_rx_mpdu_encrypt_type type)
+{
+	switch (type) {
+	case HTT_RX_MPDU_ENCRYPT_WEP40:
+	case HTT_RX_MPDU_ENCRYPT_WEP104:
+		return 4;
+	case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC:
+	case HTT_RX_MPDU_ENCRYPT_WEP128: /* not tested */
+	case HTT_RX_MPDU_ENCRYPT_TKIP_WPA:
+	case HTT_RX_MPDU_ENCRYPT_WAPI: /* not tested */
+	case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
+		return 8;
+	case HTT_RX_MPDU_ENCRYPT_NONE:
+		return 0;
+	}
+
+	ath10k_warn("unknown encryption type %d\n", type);
+	return 0;
+}
+
+static int ath10k_htt_rx_crypto_tail_len(enum htt_rx_mpdu_encrypt_type type)
+{
+	switch (type) {
+	case HTT_RX_MPDU_ENCRYPT_NONE:
+	case HTT_RX_MPDU_ENCRYPT_WEP40:
+	case HTT_RX_MPDU_ENCRYPT_WEP104:
+	case HTT_RX_MPDU_ENCRYPT_WEP128:
+	case HTT_RX_MPDU_ENCRYPT_WAPI:
+		return 0;
+	case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC:
+	case HTT_RX_MPDU_ENCRYPT_TKIP_WPA:
+		return 4;
+	case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
+		return 8;
+	}
+
+	ath10k_warn("unknown encryption type %d\n", type);
+	return 0;
+}
+
+/* Applies for first msdu in chain, before altering it. */
+static struct ieee80211_hdr *ath10k_htt_rx_skb_get_hdr(struct sk_buff *skb)
+{
+	struct htt_rx_desc *rxd;
+	enum rx_msdu_decap_format fmt;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+			RX_MSDU_START_INFO1_DECAP_FORMAT);
+
+	if (fmt == RX_MSDU_DECAP_RAW)
+		return (void *)skb->data;
+	else
+		return (void *)skb->data - RX_HTT_HDR_STATUS_LEN;
+}
+
+/* This function only applies for first msdu in an msdu chain */
+static bool ath10k_htt_rx_hdr_is_amsdu(struct ieee80211_hdr *hdr)
+{
+	if (ieee80211_is_data_qos(hdr->frame_control)) {
+		u8 *qc = ieee80211_get_qos_ctl(hdr);
+		if (qc[0] & 0x80)
+			return true;
+	}
+	return false;
+}
+
+static int ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
+			struct htt_rx_info *info)
+{
+	struct htt_rx_desc *rxd;
+	struct sk_buff *amsdu;
+	struct sk_buff *first;
+	struct ieee80211_hdr *hdr;
+	struct sk_buff *skb = info->skb;
+	enum rx_msdu_decap_format fmt;
+	enum htt_rx_mpdu_encrypt_type enctype;
+	unsigned int hdr_len;
+	int crypto_len;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+			RX_MSDU_START_INFO1_DECAP_FORMAT);
+	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+			RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+
+	/* FIXME: No idea what assumptions are safe here. Need logs */
+	if ((fmt == RX_MSDU_DECAP_RAW && skb->next) ||
+	    (fmt == RX_MSDU_DECAP_8023_SNAP_LLC)) {
+		ath10k_htt_rx_free_msdu_chain(skb->next);
+		skb->next = NULL;
+		return -ENOTSUPP;
+	}
+
+	/* A-MSDU max is a little less than 8K */
+	amsdu = dev_alloc_skb(8*1024);
+	if (!amsdu) {
+		ath10k_warn("A-MSDU allocation failed\n");
+		ath10k_htt_rx_free_msdu_chain(skb->next);
+		skb->next = NULL;
+		return -ENOMEM;
+	}
+
+	if (fmt >= RX_MSDU_DECAP_NATIVE_WIFI) {
+		int hdrlen;
+
+		hdr = (void *)rxd->rx_hdr_status;
+		hdrlen = ieee80211_hdrlen(hdr->frame_control);
+		memcpy(skb_put(amsdu, hdrlen), hdr, hdrlen);
+	}
+
+	first = skb;
+	while (skb) {
+		void *decap_hdr;
+		int decap_len = 0;
+
+		rxd = (void *)skb->data - sizeof(*rxd);
+		fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+				RX_MSDU_START_INFO1_DECAP_FORMAT);
+		decap_hdr = (void *)rxd->rx_hdr_status;
+
+		if (skb == first) {
+			/* We receive linked A-MSDU subframe skbuffs. The
+			 * first one contains the original 802.11 header (and
+			 * possible crypto param) in the RX descriptor. The
+			 * A-MSDU subframe header follows that. Each part is
+			 * aligned to 4 byte boundary. */
+
+			hdr = (void *)amsdu->data;
+			hdr_len = ieee80211_hdrlen(hdr->frame_control);
+			crypto_len = ath10k_htt_rx_crypto_param_len(enctype);
+
+			decap_hdr += roundup(hdr_len, 4);
+			decap_hdr += roundup(crypto_len, 4);
+		}
+
+		if (fmt == RX_MSDU_DECAP_ETHERNET2_DIX) {
+			/* Ethernet2 decap inserts ethernet header in place of
+			 * A-MSDU subframe header. */
+			skb_pull(skb, 6 + 6 + 2);
+
+			/* A-MSDU subframe header length */
+			decap_len += 6 + 6 + 2;
+
+			/* Ethernet2 decap also strips the LLC/SNAP so we need
+			 * to re-insert it. The LLC/SNAP follows A-MSDU
+			 * subframe header. */
+			/* FIXME: Not all LLCs are 8 bytes long */
+			decap_len += 8;
+
+			memcpy(skb_put(amsdu, decap_len), decap_hdr, decap_len);
+		}
+
+		if (fmt == RX_MSDU_DECAP_NATIVE_WIFI) {
+			/* Native Wifi decap inserts regular 802.11 header
+			 * in place of A-MSDU subframe header. */
+			hdr = (struct ieee80211_hdr *)skb->data;
+			skb_pull(skb, ieee80211_hdrlen(hdr->frame_control));
+
+			/* A-MSDU subframe header length */
+			decap_len += 6 + 6 + 2;
+
+			memcpy(skb_put(amsdu, decap_len), decap_hdr, decap_len);
+		}
+
+		if (fmt == RX_MSDU_DECAP_RAW)
+			skb_trim(skb, skb->len - 4); /* remove FCS */
+
+		memcpy(skb_put(amsdu, skb->len), skb->data, skb->len);
+
+		/* A-MSDU subframes are padded to 4bytes
+		 * but relative to first subframe, not the whole MPDU */
+		if (skb->next && ((decap_len + skb->len) & 3)) {
+			int padlen = 4 - ((decap_len + skb->len) & 3);
+			memset(skb_put(amsdu, padlen), 0, padlen);
+		}
+
+		skb = skb->next;
+	}
+
+	info->skb = amsdu;
+	info->encrypt_type = enctype;
+
+	ath10k_htt_rx_free_msdu_chain(first);
+
+	return 0;
+}
+
+static int ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
+{
+	struct sk_buff *skb = info->skb;
+	struct htt_rx_desc *rxd;
+	struct ieee80211_hdr *hdr;
+	enum rx_msdu_decap_format fmt;
+	enum htt_rx_mpdu_encrypt_type enctype;
+
+	/* This shouldn't happen. If it does than it may be a FW bug. */
+	if (skb->next) {
+		ath10k_warn("received chained non A-MSDU frame\n");
+		ath10k_htt_rx_free_msdu_chain(skb->next);
+		skb->next = NULL;
+	}
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+			RX_MSDU_START_INFO1_DECAP_FORMAT);
+	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+			RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+	hdr = (void *)skb->data - RX_HTT_HDR_STATUS_LEN;
+
+	switch (fmt) {
+	case RX_MSDU_DECAP_RAW:
+		/* remove trailing FCS */
+		skb_trim(skb, skb->len - 4);
+		break;
+	case RX_MSDU_DECAP_NATIVE_WIFI:
+		/* nothing to do here */
+		break;
+	case RX_MSDU_DECAP_ETHERNET2_DIX:
+		/* macaddr[6] + macaddr[6] + ethertype[2] */
+		skb_pull(skb, 6 + 6 + 2);
+		break;
+	case RX_MSDU_DECAP_8023_SNAP_LLC:
+		/* macaddr[6] + macaddr[6] + len[2] */
+		/* we don't need this for non-A-MSDU */
+		skb_pull(skb, 6 + 6 + 2);
+		break;
+	}
+
+	if (fmt == RX_MSDU_DECAP_ETHERNET2_DIX) {
+		void *llc;
+		int llclen;
+
+		llclen = 8;
+		llc  = hdr;
+		llc += roundup(ieee80211_hdrlen(hdr->frame_control), 4);
+		llc += roundup(ath10k_htt_rx_crypto_param_len(enctype), 4);
+
+		skb_push(skb, llclen);
+		memcpy(skb->data, llc, llclen);
+	}
+
+	if (fmt >= RX_MSDU_DECAP_ETHERNET2_DIX) {
+		int len = ieee80211_hdrlen(hdr->frame_control);
+		skb_push(skb, len);
+		memcpy(skb->data, hdr, len);
+	}
+
+	info->skb = skb;
+	info->encrypt_type = enctype;
+	return 0;
+}
+
+static bool ath10k_htt_rx_has_decrypt_err(struct sk_buff *skb)
+{
+	struct htt_rx_desc *rxd;
+	u32 flags;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	flags = __le32_to_cpu(rxd->attention.flags);
+
+	if (flags & RX_ATTENTION_FLAGS_DECRYPT_ERR)
+		return true;
+
+	return false;
+}
+
+static bool ath10k_htt_rx_has_fcs_err(struct sk_buff *skb)
+{
+	struct htt_rx_desc *rxd;
+	u32 flags;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	flags = __le32_to_cpu(rxd->attention.flags);
+
+	if (flags & RX_ATTENTION_FLAGS_FCS_ERR)
+		return true;
+
+	return false;
+}
+
+static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
+				  struct htt_rx_indication *rx)
+{
+	struct htt_rx_info info;
+	struct htt_rx_indication_mpdu_range *mpdu_ranges;
+	struct ieee80211_hdr *hdr;
+	int num_mpdu_ranges;
+	int fw_desc_len;
+	u8 *fw_desc;
+	int i, j;
+	int ret;
+
+	memset(&info, 0, sizeof(info));
+
+	fw_desc_len = __le16_to_cpu(rx->prefix.fw_rx_desc_bytes);
+	fw_desc = (u8 *)&rx->fw_desc;
+
+	num_mpdu_ranges = MS(__le32_to_cpu(rx->hdr.info1),
+			     HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES);
+	mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
+
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ",
+			rx, sizeof(*rx) +
+			(sizeof(struct htt_rx_indication_mpdu_range) *
+				num_mpdu_ranges));
+
+	for (i = 0; i < num_mpdu_ranges; i++) {
+		info.status = mpdu_ranges[i].mpdu_range_status;
+
+		for (j = 0; j < mpdu_ranges[i].mpdu_count; j++) {
+			struct sk_buff *msdu_head, *msdu_tail;
+			enum htt_rx_mpdu_status status;
+			int msdu_chaining;
+
+			msdu_head = NULL;
+			msdu_tail = NULL;
+			msdu_chaining = ath10k_htt_rx_amsdu_pop(htt,
+							 &fw_desc,
+							 &fw_desc_len,
+							 &msdu_head,
+							 &msdu_tail);
+
+			if (!msdu_head) {
+				ath10k_warn("htt rx no data!\n");
+				continue;
+			}
+
+			if (msdu_head->len == 0) {
+				ath10k_dbg(ATH10K_DBG_HTT,
+					   "htt rx dropping due to zero-len\n");
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			if (ath10k_htt_rx_has_decrypt_err(msdu_head)) {
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			status = info.status;
+
+			/* Skip mgmt frames while we handle this in WMI */
+			if (status == HTT_RX_IND_MPDU_STATUS_MGMT_CTRL) {
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			if (status != HTT_RX_IND_MPDU_STATUS_OK &&
+			    status != HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR &&
+			    !htt->ar->monitor_enabled) {
+				ath10k_dbg(ATH10K_DBG_HTT,
+					   "htt rx ignoring frame w/ status %d\n",
+					   status);
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			/* FIXME: we do not support chaining yet.
+			 * this needs investigation */
+			if (msdu_chaining) {
+				ath10k_warn("msdu_chaining is true\n");
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			info.skb     = msdu_head;
+			info.fcs_err = ath10k_htt_rx_has_fcs_err(msdu_head);
+			info.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
+			info.signal += rx->ppdu.combined_rssi;
+
+			info.rate.info0 = rx->ppdu.info0;
+			info.rate.info1 = __le32_to_cpu(rx->ppdu.info1);
+			info.rate.info2 = __le32_to_cpu(rx->ppdu.info2);
+
+			hdr = ath10k_htt_rx_skb_get_hdr(msdu_head);
+
+			if (ath10k_htt_rx_hdr_is_amsdu(hdr))
+				ret = ath10k_htt_rx_amsdu(htt, &info);
+			else
+				ret = ath10k_htt_rx_msdu(htt, &info);
+
+			if (ret && !info.fcs_err) {
+				ath10k_warn("error processing msdus %d\n", ret);
+				dev_kfree_skb_any(info.skb);
+				continue;
+			}
+
+			if (ath10k_htt_rx_hdr_is_amsdu((void *)info.skb->data))
+				ath10k_dbg(ATH10K_DBG_HTT, "htt mpdu is amsdu\n");
+
+			ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt mpdu: ",
+					info.skb->data, info.skb->len);
+			ath10k_process_rx(htt->ar, &info);
+		}
+	}
+
+	ath10k_htt_rx_msdu_buff_replenish(htt);
+}
+
+static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
+				struct htt_rx_fragment_indication *frag)
+{
+	struct sk_buff *msdu_head, *msdu_tail;
+	struct htt_rx_desc *rxd;
+	enum rx_msdu_decap_format fmt;
+	struct htt_rx_info info = {};
+	struct ieee80211_hdr *hdr;
+	int msdu_chaining;
+	bool tkip_mic_err;
+	bool decrypt_err;
+	u8 *fw_desc;
+	int fw_desc_len, hdrlen, paramlen;
+	int trim;
+
+	fw_desc_len = __le16_to_cpu(frag->fw_rx_desc_bytes);
+	fw_desc = (u8 *)frag->fw_msdu_rx_desc;
+
+	msdu_head = NULL;
+	msdu_tail = NULL;
+	msdu_chaining = ath10k_htt_rx_amsdu_pop(htt, &fw_desc, &fw_desc_len,
+						&msdu_head, &msdu_tail);
+
+	ath10k_dbg(ATH10K_DBG_HTT_DUMP, "htt rx frag ahead\n");
+
+	if (!msdu_head) {
+		ath10k_warn("htt rx frag no data\n");
+		return;
+	}
+
+	if (msdu_chaining || msdu_head != msdu_tail) {
+		ath10k_warn("aggregation with fragmentation?!\n");
+		ath10k_htt_rx_free_msdu_chain(msdu_head);
+		return;
+	}
+
+	/* FIXME: implement signal strength */
+
+	hdr = (struct ieee80211_hdr *)msdu_head->data;
+	rxd = (void *)msdu_head->data - sizeof(*rxd);
+	tkip_mic_err = !!(__le32_to_cpu(rxd->attention.flags) &
+				RX_ATTENTION_FLAGS_TKIP_MIC_ERR);
+	decrypt_err = !!(__le32_to_cpu(rxd->attention.flags) &
+				RX_ATTENTION_FLAGS_DECRYPT_ERR);
+	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+			RX_MSDU_START_INFO1_DECAP_FORMAT);
+
+	if (fmt != RX_MSDU_DECAP_RAW) {
+		ath10k_warn("we dont support non-raw fragmented rx yet\n");
+		dev_kfree_skb_any(msdu_head);
+		goto end;
+	}
+
+	info.skb = msdu_head;
+	info.status = HTT_RX_IND_MPDU_STATUS_OK;
+	info.encrypt_type = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+				RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+
+	if (tkip_mic_err) {
+		ath10k_warn("tkip mic error\n");
+		info.status = HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR;
+	}
+
+	if (decrypt_err) {
+		ath10k_warn("decryption err in fragmented rx\n");
+		dev_kfree_skb_any(info.skb);
+		goto end;
+	}
+
+	if (info.encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
+		hdrlen = ieee80211_hdrlen(hdr->frame_control);
+		paramlen = ath10k_htt_rx_crypto_param_len(info.encrypt_type);
+
+		/* It is more efficient to move the header than the payload */
+		memmove((void *)info.skb->data + paramlen,
+			(void *)info.skb->data,
+			hdrlen);
+		skb_pull(info.skb, paramlen);
+		hdr = (struct ieee80211_hdr *)info.skb->data;
+	}
+
+	/* remove trailing FCS */
+	trim  = 4;
+
+	/* remove crypto trailer */
+	trim += ath10k_htt_rx_crypto_tail_len(info.encrypt_type);
+
+	/* last fragment of TKIP frags has MIC */
+	if (!ieee80211_has_morefrags(hdr->frame_control) &&
+	    info.encrypt_type == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
+		trim += 8;
+
+	if (trim > info.skb->len) {
+		ath10k_warn("htt rx fragment: trailer longer than the frame itself? drop\n");
+		dev_kfree_skb_any(info.skb);
+		goto end;
+	}
+
+	skb_trim(info.skb, info.skb->len - trim);
+
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt frag mpdu: ",
+			info.skb->data, info.skb->len);
+	ath10k_process_rx(htt->ar, &info);
+
+end:
+	if (fw_desc_len > 0) {
+		ath10k_dbg(ATH10K_DBG_HTT,
+			   "expecting more fragmented rx in one indication %d\n",
+			   fw_desc_len);
+	}
+}
+
+void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct ath10k_htt *htt = ar->htt;
+	struct htt_resp *resp = (struct htt_resp *)skb->data;
+
+	/* confirm alignment */
+	if (!IS_ALIGNED((unsigned long)skb->data, 4))
+		ath10k_warn("unaligned htt message, expect trouble\n");
+
+	ath10k_dbg(ATH10K_DBG_HTT, "HTT RX, msg_type: 0x%0X\n",
+		   resp->hdr.msg_type);
+	switch (resp->hdr.msg_type) {
+	case HTT_T2H_MSG_TYPE_VERSION_CONF: {
+		htt->target_version_major = resp->ver_resp.major;
+		htt->target_version_minor = resp->ver_resp.minor;
+		complete(&htt->target_version_received);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_RX_IND: {
+		ath10k_htt_rx_handler(htt, &resp->rx_ind);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_PEER_MAP: {
+		struct htt_peer_map_event ev = {
+			.vdev_id = resp->peer_map.vdev_id,
+			.peer_id = __le16_to_cpu(resp->peer_map.peer_id),
+		};
+		memcpy(ev.addr, resp->peer_map.addr, sizeof(ev.addr));
+		ath10k_peer_map_event(htt, &ev);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_PEER_UNMAP: {
+		struct htt_peer_unmap_event ev = {
+			.peer_id = __le16_to_cpu(resp->peer_unmap.peer_id),
+		};
+		ath10k_peer_unmap_event(htt, &ev);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION: {
+		struct htt_tx_done tx_done = {};
+		int status = __le32_to_cpu(resp->mgmt_tx_completion.status);
+
+		tx_done.msdu_id =
+			__le32_to_cpu(resp->mgmt_tx_completion.desc_id);
+
+		switch (status) {
+		case HTT_MGMT_TX_STATUS_OK:
+			break;
+		case HTT_MGMT_TX_STATUS_RETRY:
+			tx_done.no_ack = true;
+			break;
+		case HTT_MGMT_TX_STATUS_DROP:
+			tx_done.discard = true;
+			break;
+		}
+
+		ath10k_txrx_tx_completed(htt, &tx_done);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_TX_COMPL_IND: {
+		struct htt_tx_done tx_done = {};
+		int status = MS(resp->data_tx_completion.flags,
+				HTT_DATA_TX_STATUS);
+		__le16 msdu_id;
+		int i;
+
+		switch (status) {
+		case HTT_DATA_TX_STATUS_NO_ACK:
+			tx_done.no_ack = true;
+			break;
+		case HTT_DATA_TX_STATUS_OK:
+			break;
+		case HTT_DATA_TX_STATUS_DISCARD:
+		case HTT_DATA_TX_STATUS_POSTPONE:
+		case HTT_DATA_TX_STATUS_DOWNLOAD_FAIL:
+			tx_done.discard = true;
+			break;
+		default:
+			ath10k_warn("unhandled tx completion status %d\n",
+				    status);
+			tx_done.discard = true;
+			break;
+		}
+
+		ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion num_msdus %d\n",
+			   resp->data_tx_completion.num_msdus);
+
+		for (i = 0; i < resp->data_tx_completion.num_msdus; i++) {
+			msdu_id = resp->data_tx_completion.msdus[i];
+			tx_done.msdu_id = __le16_to_cpu(msdu_id);
+			ath10k_txrx_tx_completed(htt, &tx_done);
+		}
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_SEC_IND: {
+		struct ath10k *ar = htt->ar;
+		struct htt_security_indication *ev = &resp->security_indication;
+
+		ath10k_dbg(ATH10K_DBG_HTT,
+			   "sec ind peer_id %d unicast %d type %d\n",
+			  __le16_to_cpu(ev->peer_id),
+			  !!(ev->flags & HTT_SECURITY_IS_UNICAST),
+			  MS(ev->flags, HTT_SECURITY_TYPE));
+		complete(&ar->install_key_done);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_RX_FRAG_IND: {
+		ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt event: ",
+				skb->data, skb->len);
+		ath10k_htt_rx_frag_handler(htt, &resp->rx_frag_ind);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_TEST:
+		/* FIX THIS */
+		break;
+	case HTT_T2H_MSG_TYPE_TX_INSPECT_IND:
+	case HTT_T2H_MSG_TYPE_STATS_CONF:
+	case HTT_T2H_MSG_TYPE_RX_ADDBA:
+	case HTT_T2H_MSG_TYPE_RX_DELBA:
+	case HTT_T2H_MSG_TYPE_RX_FLUSH:
+	default:
+		ath10k_dbg(ATH10K_DBG_HTT, "htt event (%d) not handled\n",
+			   resp->hdr.msg_type);
+		ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt event: ",
+				skb->data, skb->len);
+		break;
+	};
+
+	/* Free the indication buffer */
+	dev_kfree_skb_any(skb);
+}
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
new file mode 100644
index 0000000..ef79106
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -0,0 +1,510 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/etherdevice.h>
+#include "htt.h"
+#include "mac.h"
+#include "hif.h"
+#include "txrx.h"
+#include "debug.h"
+
+void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
+{
+	htt->num_pending_tx--;
+	if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
+		ieee80211_wake_queues(htt->ar->hw);
+}
+
+static void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
+{
+	spin_lock_bh(&htt->tx_lock);
+	__ath10k_htt_tx_dec_pending(htt);
+	spin_unlock_bh(&htt->tx_lock);
+}
+
+static int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
+{
+	int ret = 0;
+
+	spin_lock_bh(&htt->tx_lock);
+
+	if (htt->num_pending_tx >= htt->max_num_pending_tx) {
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	htt->num_pending_tx++;
+	if (htt->num_pending_tx == htt->max_num_pending_tx)
+		ieee80211_stop_queues(htt->ar->hw);
+
+exit:
+	spin_unlock_bh(&htt->tx_lock);
+	return ret;
+}
+
+int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt)
+{
+	int msdu_id;
+
+	lockdep_assert_held(&htt->tx_lock);
+
+	msdu_id = find_first_zero_bit(htt->used_msdu_ids,
+				      htt->max_num_pending_tx);
+	if (msdu_id == htt->max_num_pending_tx)
+		return -ENOBUFS;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx alloc msdu_id %d\n", msdu_id);
+	__set_bit(msdu_id, htt->used_msdu_ids);
+	return msdu_id;
+}
+
+void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id)
+{
+	lockdep_assert_held(&htt->tx_lock);
+
+	if (!test_bit(msdu_id, htt->used_msdu_ids))
+		ath10k_warn("trying to free unallocated msdu_id %d\n", msdu_id);
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx free msdu_id %hu\n", msdu_id);
+	__clear_bit(msdu_id, htt->used_msdu_ids);
+}
+
+int ath10k_htt_tx_attach(struct ath10k_htt *htt)
+{
+	u8 pipe;
+
+	spin_lock_init(&htt->tx_lock);
+	init_waitqueue_head(&htt->empty_tx_wq);
+
+	/* At the beginning free queue number should hint us the maximum
+	 * queue length */
+	pipe = htt->ar->htc->endpoint[htt->eid].ul_pipe_id;
+	htt->max_num_pending_tx = ath10k_hif_get_free_queue_number(htt->ar,
+								   pipe);
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx max num pending tx %d\n",
+		   htt->max_num_pending_tx);
+
+	htt->pending_tx = kzalloc(sizeof(*htt->pending_tx) *
+				  htt->max_num_pending_tx, GFP_KERNEL);
+	if (!htt->pending_tx)
+		return -ENOMEM;
+
+	htt->used_msdu_ids = kzalloc(sizeof(unsigned long) *
+				     BITS_TO_LONGS(htt->max_num_pending_tx),
+				     GFP_KERNEL);
+	if (!htt->used_msdu_ids) {
+		kfree(htt->pending_tx);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void ath10k_htt_tx_cleanup_pending(struct ath10k_htt *htt)
+{
+	struct sk_buff *txdesc;
+	int msdu_id;
+
+	/* No locks needed. Called after communication with the device has
+	 * been stopped. */
+
+	for (msdu_id = 0; msdu_id < htt->max_num_pending_tx; msdu_id++) {
+		if (!test_bit(msdu_id, htt->used_msdu_ids))
+			continue;
+
+		txdesc = htt->pending_tx[msdu_id];
+		if (!txdesc)
+			continue;
+
+		ath10k_dbg(ATH10K_DBG_HTT, "force cleanup msdu_id %hu\n",
+			   msdu_id);
+
+		if (ATH10K_SKB_CB(txdesc)->htt.refcount > 0)
+			ATH10K_SKB_CB(txdesc)->htt.refcount = 1;
+
+		ATH10K_SKB_CB(txdesc)->htt.discard = true;
+		ath10k_txrx_tx_unref(htt, txdesc);
+	}
+}
+
+void ath10k_htt_tx_detach(struct ath10k_htt *htt)
+{
+	ath10k_htt_tx_cleanup_pending(htt);
+	kfree(htt->pending_tx);
+	kfree(htt->used_msdu_ids);
+	return;
+}
+
+void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
+	struct ath10k_htt *htt = ar->htt;
+
+	if (skb_cb->htt.is_conf) {
+		dev_kfree_skb_any(skb);
+		return;
+	}
+
+	if (skb_cb->is_aborted) {
+		skb_cb->htt.discard = true;
+
+		/* if the skbuff is aborted we need to make sure we'll free up
+		 * the tx resources, we can't simply run tx_unref() 2 times
+		 * because if htt tx completion came in earlier we'd access
+		 * unallocated memory */
+		if (skb_cb->htt.refcount > 1)
+			skb_cb->htt.refcount = 1;
+	}
+
+	ath10k_txrx_tx_unref(htt, skb);
+}
+
+int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt)
+{
+	struct sk_buff *skb;
+	struct htt_cmd *cmd;
+	int len = 0;
+	int ret;
+
+	len += sizeof(cmd->hdr);
+	len += sizeof(cmd->ver_req);
+
+	skb = ath10k_htc_alloc_skb(len);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, len);
+	cmd = (struct htt_cmd *)skb->data;
+	cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_VERSION_REQ;
+
+	ATH10K_SKB_CB(skb)->htt.is_conf = true;
+
+	ret = ath10k_htc_send(htt->ar->htc, htt->eid, skb);
+	if (ret) {
+		dev_kfree_skb_any(skb);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt)
+{
+	struct sk_buff *skb;
+	struct htt_cmd *cmd;
+	struct htt_rx_ring_setup_ring *ring;
+	const int num_rx_ring = 1;
+	u16 flags;
+	u32 fw_idx;
+	int len;
+	int ret;
+
+	/*
+	 * the HW expects the buffer to be an integral number of 4-byte
+	 * "words"
+	 */
+	BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4));
+	BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0);
+
+	len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup.hdr)
+	    + (sizeof(*ring) * num_rx_ring);
+	skb = ath10k_htc_alloc_skb(len);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, len);
+
+	cmd = (struct htt_cmd *)skb->data;
+	ring = &cmd->rx_setup.rings[0];
+
+	cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG;
+	cmd->rx_setup.hdr.num_rings = 1;
+
+	/* FIXME: do we need all of this? */
+	flags = 0;
+	flags |= HTT_RX_RING_FLAGS_MAC80211_HDR;
+	flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD;
+	flags |= HTT_RX_RING_FLAGS_PPDU_START;
+	flags |= HTT_RX_RING_FLAGS_PPDU_END;
+	flags |= HTT_RX_RING_FLAGS_MPDU_START;
+	flags |= HTT_RX_RING_FLAGS_MPDU_END;
+	flags |= HTT_RX_RING_FLAGS_MSDU_START;
+	flags |= HTT_RX_RING_FLAGS_MSDU_END;
+	flags |= HTT_RX_RING_FLAGS_RX_ATTENTION;
+	flags |= HTT_RX_RING_FLAGS_FRAG_INFO;
+	flags |= HTT_RX_RING_FLAGS_UNICAST_RX;
+	flags |= HTT_RX_RING_FLAGS_MULTICAST_RX;
+	flags |= HTT_RX_RING_FLAGS_CTRL_RX;
+	flags |= HTT_RX_RING_FLAGS_MGMT_RX;
+	flags |= HTT_RX_RING_FLAGS_NULL_RX;
+	flags |= HTT_RX_RING_FLAGS_PHY_DATA_RX;
+
+	fw_idx = __le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr);
+
+	ring->fw_idx_shadow_reg_paddr =
+		__cpu_to_le32(htt->rx_ring.alloc_idx.paddr);
+	ring->rx_ring_base_paddr = __cpu_to_le32(htt->rx_ring.base_paddr);
+	ring->rx_ring_len = __cpu_to_le16(htt->rx_ring.size);
+	ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE);
+	ring->flags = __cpu_to_le16(flags);
+	ring->fw_idx_init_val = __cpu_to_le16(fw_idx);
+
+#define desc_offset(x) (offsetof(struct htt_rx_desc, x) / 4)
+
+	ring->mac80211_hdr_offset = __cpu_to_le16(desc_offset(rx_hdr_status));
+	ring->msdu_payload_offset = __cpu_to_le16(desc_offset(msdu_payload));
+	ring->ppdu_start_offset = __cpu_to_le16(desc_offset(ppdu_start));
+	ring->ppdu_end_offset = __cpu_to_le16(desc_offset(ppdu_end));
+	ring->mpdu_start_offset = __cpu_to_le16(desc_offset(mpdu_start));
+	ring->mpdu_end_offset = __cpu_to_le16(desc_offset(mpdu_end));
+	ring->msdu_start_offset = __cpu_to_le16(desc_offset(msdu_start));
+	ring->msdu_end_offset = __cpu_to_le16(desc_offset(msdu_end));
+	ring->rx_attention_offset = __cpu_to_le16(desc_offset(attention));
+	ring->frag_info_offset = __cpu_to_le16(desc_offset(frag_info));
+
+#undef desc_offset
+
+	ATH10K_SKB_CB(skb)->htt.is_conf = true;
+
+	ret = ath10k_htc_send(htt->ar->htc, htt->eid, skb);
+	if (ret) {
+		dev_kfree_skb_any(skb);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
+{
+	struct device *dev = htt->ar->dev;
+	struct ath10k_skb_cb *skb_cb;
+	struct sk_buff *txdesc = NULL;
+	struct htt_cmd *cmd;
+	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
+	int len = 0;
+	int msdu_id = -1;
+	int res;
+
+
+	res = ath10k_htt_tx_inc_pending(htt);
+	if (res)
+		return res;
+
+	len += sizeof(cmd->hdr);
+	len += sizeof(cmd->mgmt_tx);
+
+	txdesc = ath10k_htc_alloc_skb(len);
+	if (!txdesc) {
+		res = -ENOMEM;
+		goto err;
+	}
+
+	spin_lock_bh(&htt->tx_lock);
+	msdu_id = ath10k_htt_tx_alloc_msdu_id(htt);
+	if (msdu_id < 0) {
+		spin_unlock_bh(&htt->tx_lock);
+		res = msdu_id;
+		goto err;
+	}
+	htt->pending_tx[msdu_id] = txdesc;
+	spin_unlock_bh(&htt->tx_lock);
+
+	res = ath10k_skb_map(dev, msdu);
+	if (res)
+		goto err;
+
+	skb_put(txdesc, len);
+	cmd = (struct htt_cmd *)txdesc->data;
+	cmd->hdr.msg_type         = HTT_H2T_MSG_TYPE_MGMT_TX;
+	cmd->mgmt_tx.msdu_paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr);
+	cmd->mgmt_tx.len        = __cpu_to_le32(msdu->len);
+	cmd->mgmt_tx.desc_id    = __cpu_to_le32(msdu_id);
+	cmd->mgmt_tx.vdev_id    = __cpu_to_le32(vdev_id);
+	memcpy(cmd->mgmt_tx.hdr, msdu->data,
+	       min_t(int, msdu->len, HTT_MGMT_FRM_HDR_DOWNLOAD_LEN));
+
+	/* refcount is decremented by HTC and HTT completions until it reaches
+	 * zero and is freed */
+	skb_cb = ATH10K_SKB_CB(txdesc);
+	skb_cb->htt.msdu_id = msdu_id;
+	skb_cb->htt.refcount = 2;
+	skb_cb->htt.msdu = msdu;
+
+	res = ath10k_htc_send(htt->ar->htc, htt->eid, txdesc);
+	if (res)
+		goto err;
+
+	return 0;
+
+err:
+	ath10k_skb_unmap(dev, msdu);
+
+	if (txdesc)
+		dev_kfree_skb_any(txdesc);
+	if (msdu_id >= 0) {
+		spin_lock_bh(&htt->tx_lock);
+		htt->pending_tx[msdu_id] = NULL;
+		ath10k_htt_tx_free_msdu_id(htt, msdu_id);
+		spin_unlock_bh(&htt->tx_lock);
+	}
+	ath10k_htt_tx_dec_pending(htt);
+	return res;
+}
+
+int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
+{
+	struct device *dev = htt->ar->dev;
+	struct htt_cmd *cmd;
+	struct htt_data_tx_desc_frag *tx_frags;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
+	struct ath10k_skb_cb *skb_cb;
+	struct sk_buff *txdesc = NULL;
+	struct sk_buff *txfrag = NULL;
+	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
+	u8 tid;
+	int prefetch_len, desc_len, frag_len;
+	dma_addr_t frags_paddr;
+	int msdu_id = -1;
+	int res;
+	u8 flags0;
+	u16 flags1;
+
+	res = ath10k_htt_tx_inc_pending(htt);
+	if (res)
+		return res;
+
+	prefetch_len = min(htt->prefetch_len, msdu->len);
+	prefetch_len = roundup(prefetch_len, 4);
+
+	desc_len = sizeof(cmd->hdr) + sizeof(cmd->data_tx) + prefetch_len;
+	frag_len = sizeof(*tx_frags) * 2;
+
+	txdesc = ath10k_htc_alloc_skb(desc_len);
+	if (!txdesc) {
+		res = -ENOMEM;
+		goto err;
+	}
+
+	txfrag = dev_alloc_skb(frag_len);
+	if (!txfrag) {
+		res = -ENOMEM;
+		goto err;
+	}
+
+	if (!IS_ALIGNED((unsigned long)txdesc->data, 4)) {
+		ath10k_warn("htt alignment check failed. dropping packet.\n");
+		res = -EIO;
+		goto err;
+	}
+
+	spin_lock_bh(&htt->tx_lock);
+	msdu_id = ath10k_htt_tx_alloc_msdu_id(htt);
+	if (msdu_id < 0) {
+		spin_unlock_bh(&htt->tx_lock);
+		res = msdu_id;
+		goto err;
+	}
+	htt->pending_tx[msdu_id] = txdesc;
+	spin_unlock_bh(&htt->tx_lock);
+
+	res = ath10k_skb_map(dev, msdu);
+	if (res)
+		goto err;
+
+	/* tx fragment list must be terminated with zero-entry */
+	skb_put(txfrag, frag_len);
+	tx_frags = (struct htt_data_tx_desc_frag *)txfrag->data;
+	tx_frags[0].paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr);
+	tx_frags[0].len   = __cpu_to_le32(msdu->len);
+	tx_frags[1].paddr = __cpu_to_le32(0);
+	tx_frags[1].len   = __cpu_to_le32(0);
+
+	res = ath10k_skb_map(dev, txfrag);
+	if (res)
+		goto err;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "txfrag 0x%llx msdu 0x%llx\n",
+		   (unsigned long long) ATH10K_SKB_CB(txfrag)->paddr,
+		   (unsigned long long) ATH10K_SKB_CB(msdu)->paddr);
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "txfrag: ",
+			txfrag->data, frag_len);
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "msdu: ",
+			msdu->data, msdu->len);
+
+	skb_put(txdesc, desc_len);
+	cmd = (struct htt_cmd *)txdesc->data;
+	memset(cmd, 0, desc_len);
+
+	tid = ATH10K_SKB_CB(msdu)->htt.tid;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt data tx using tid %hhu\n", tid);
+
+	flags0  = 0;
+	if (!ieee80211_has_protected(hdr->frame_control))
+		flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT;
+	flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
+	flags0 |= SM(ATH10K_HW_TXRX_NATIVE_WIFI,
+		     HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
+
+	flags1  = 0;
+	flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID);
+	flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID);
+
+	frags_paddr = ATH10K_SKB_CB(txfrag)->paddr;
+
+	cmd->hdr.msg_type        = HTT_H2T_MSG_TYPE_TX_FRM;
+	cmd->data_tx.flags0      = flags0;
+	cmd->data_tx.flags1      = __cpu_to_le16(flags1);
+	cmd->data_tx.len         = __cpu_to_le16(msdu->len);
+	cmd->data_tx.id          = __cpu_to_le16(msdu_id);
+	cmd->data_tx.frags_paddr = __cpu_to_le32(frags_paddr);
+	cmd->data_tx.peerid      = __cpu_to_le32(HTT_INVALID_PEERID);
+
+	memcpy(cmd->data_tx.prefetch, msdu->data, prefetch_len);
+
+	/* refcount is decremented by HTC and HTT completions until it reaches
+	 * zero and is freed */
+	skb_cb = ATH10K_SKB_CB(txdesc);
+	skb_cb->htt.msdu_id = msdu_id;
+	skb_cb->htt.refcount = 2;
+	skb_cb->htt.txfrag = txfrag;
+	skb_cb->htt.msdu = msdu;
+
+	res = ath10k_htc_send(htt->ar->htc, htt->eid, txdesc);
+	if (res)
+		goto err;
+
+	return 0;
+err:
+	if (txfrag)
+		ath10k_skb_unmap(dev, txfrag);
+	if (txdesc)
+		dev_kfree_skb_any(txdesc);
+	if (txfrag)
+		dev_kfree_skb_any(txfrag);
+	if (msdu_id >= 0) {
+		spin_lock_bh(&htt->tx_lock);
+		htt->pending_tx[msdu_id] = NULL;
+		ath10k_htt_tx_free_msdu_id(htt, msdu_id);
+		spin_unlock_bh(&htt->tx_lock);
+	}
+	ath10k_htt_tx_dec_pending(htt);
+	ath10k_skb_unmap(dev, msdu);
+	return res;
+}
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
new file mode 100644
index 0000000..44ed5af
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -0,0 +1,304 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HW_H_
+#define _HW_H_
+
+#include "targaddrs.h"
+
+/* Supported FW version */
+#define SUPPORTED_FW_MAJOR	1
+#define SUPPORTED_FW_MINOR	0
+#define SUPPORTED_FW_RELEASE	0
+#define SUPPORTED_FW_BUILD	629
+
+/* QCA988X 1.0 definitions */
+#define QCA988X_HW_1_0_VERSION		0x4000002c
+#define QCA988X_HW_1_0_FW_DIR		"ath10k/QCA988X/hw1.0"
+#define QCA988X_HW_1_0_FW_FILE		"firmware.bin"
+#define QCA988X_HW_1_0_OTP_FILE		"otp.bin"
+#define QCA988X_HW_1_0_BOARD_DATA_FILE	"board.bin"
+#define QCA988X_HW_1_0_PATCH_LOAD_ADDR	0x1234
+
+/* QCA988X 2.0 definitions */
+#define QCA988X_HW_2_0_VERSION		0x4100016c
+#define QCA988X_HW_2_0_FW_DIR		"ath10k/QCA988X/hw2.0"
+#define QCA988X_HW_2_0_FW_FILE		"firmware.bin"
+#define QCA988X_HW_2_0_OTP_FILE		"otp.bin"
+#define QCA988X_HW_2_0_BOARD_DATA_FILE	"board.bin"
+#define QCA988X_HW_2_0_PATCH_LOAD_ADDR	0x1234
+
+/* Known pecularities:
+ *  - current FW doesn't support raw rx mode (last tested v599)
+ *  - current FW dumps upon raw tx mode (last tested v599)
+ *  - raw appears in nwifi decap, raw and nwifi appear in ethernet decap
+ *  - raw have FCS, nwifi doesn't
+ *  - ethernet frames have 802.11 header decapped and parts (base hdr, cipher
+ *    param, llc/snap) are aligned to 4byte boundaries each */
+enum ath10k_hw_txrx_mode {
+	ATH10K_HW_TXRX_RAW = 0,
+	ATH10K_HW_TXRX_NATIVE_WIFI = 1,
+	ATH10K_HW_TXRX_ETHERNET = 2,
+};
+
+enum ath10k_mcast2ucast_mode {
+	ATH10K_MCAST2UCAST_DISABLED = 0,
+	ATH10K_MCAST2UCAST_ENABLED = 1,
+};
+
+#define TARGET_NUM_VDEVS			8
+#define TARGET_NUM_PEER_AST			2
+#define TARGET_NUM_WDS_ENTRIES			32
+#define TARGET_DMA_BURST_SIZE			0
+#define TARGET_MAC_AGGR_DELIM			0
+#define TARGET_AST_SKID_LIMIT			16
+#define TARGET_NUM_PEERS			16
+#define TARGET_NUM_OFFLOAD_PEERS		0
+#define TARGET_NUM_OFFLOAD_REORDER_BUFS         0
+#define TARGET_NUM_PEER_KEYS			2
+#define TARGET_NUM_TIDS		(2 * ((TARGET_NUM_PEERS) + (TARGET_NUM_VDEVS)))
+#define TARGET_TX_CHAIN_MASK			(BIT(0) | BIT(1) | BIT(2))
+#define TARGET_RX_CHAIN_MASK			(BIT(0) | BIT(1) | BIT(2))
+#define TARGET_RX_TIMEOUT_LO_PRI		100
+#define TARGET_RX_TIMEOUT_HI_PRI		40
+#define TARGET_RX_DECAP_MODE			ATH10K_HW_TXRX_ETHERNET
+#define TARGET_SCAN_MAX_PENDING_REQS		4
+#define TARGET_BMISS_OFFLOAD_MAX_VDEV		3
+#define TARGET_ROAM_OFFLOAD_MAX_VDEV		3
+#define TARGET_ROAM_OFFLOAD_MAX_AP_PROFILES	8
+#define TARGET_GTK_OFFLOAD_MAX_VDEV		3
+#define TARGET_NUM_MCAST_GROUPS			0
+#define TARGET_NUM_MCAST_TABLE_ELEMS		0
+#define TARGET_MCAST2UCAST_MODE			ATH10K_MCAST2UCAST_DISABLED
+#define TARGET_TX_DBG_LOG_SIZE			1024
+#define TARGET_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK 0
+#define TARGET_VOW_CONFIG			0
+#define TARGET_NUM_MSDU_DESC			(1024 + 400)
+#define TARGET_MAX_FRAG_ENTRIES			0
+
+
+/* Number of Copy Engines supported */
+#define CE_COUNT 8
+
+/*
+ * Total number of PCIe MSI interrupts requested for all interrupt sources.
+ * PCIe standard forces this to be a power of 2.
+ * Some Host OS's limit MSI requests that can be granted to 8
+ * so for now we abide by this limit and avoid requesting more
+ * than that.
+ */
+#define MSI_NUM_REQUEST_LOG2	3
+#define MSI_NUM_REQUEST		(1<<MSI_NUM_REQUEST_LOG2)
+
+/*
+ * Granted MSIs are assigned as follows:
+ * Firmware uses the first
+ * Remaining MSIs, if any, are used by Copy Engines
+ * This mapping is known to both Target firmware and Host software.
+ * It may be changed as long as Host and Target are kept in sync.
+ */
+/* MSI for firmware (errors, etc.) */
+#define MSI_ASSIGN_FW		0
+
+/* MSIs for Copy Engines */
+#define MSI_ASSIGN_CE_INITIAL	1
+#define MSI_ASSIGN_CE_MAX	7
+
+/* as of IP3.7.1 */
+#define RTC_STATE_V_ON				3
+
+#define RTC_STATE_COLD_RESET_MASK		0x00000400
+#define RTC_STATE_V_LSB				0
+#define RTC_STATE_V_MASK			0x00000007
+#define RTC_STATE_ADDRESS			0x0000
+#define PCIE_SOC_WAKE_V_MASK			0x00000001
+#define PCIE_SOC_WAKE_ADDRESS			0x0004
+#define PCIE_SOC_WAKE_RESET			0x00000000
+#define SOC_GLOBAL_RESET_ADDRESS		0x0008
+
+#define RTC_SOC_BASE_ADDRESS			0x00004000
+#define RTC_WMAC_BASE_ADDRESS			0x00005000
+#define MAC_COEX_BASE_ADDRESS			0x00006000
+#define BT_COEX_BASE_ADDRESS			0x00007000
+#define SOC_PCIE_BASE_ADDRESS			0x00008000
+#define SOC_CORE_BASE_ADDRESS			0x00009000
+#define WLAN_UART_BASE_ADDRESS			0x0000c000
+#define WLAN_SI_BASE_ADDRESS			0x00010000
+#define WLAN_GPIO_BASE_ADDRESS			0x00014000
+#define WLAN_ANALOG_INTF_BASE_ADDRESS		0x0001c000
+#define WLAN_MAC_BASE_ADDRESS			0x00020000
+#define EFUSE_BASE_ADDRESS			0x00030000
+#define FPGA_REG_BASE_ADDRESS			0x00039000
+#define WLAN_UART2_BASE_ADDRESS			0x00054c00
+#define CE_WRAPPER_BASE_ADDRESS			0x00057000
+#define CE0_BASE_ADDRESS			0x00057400
+#define CE1_BASE_ADDRESS			0x00057800
+#define CE2_BASE_ADDRESS			0x00057c00
+#define CE3_BASE_ADDRESS			0x00058000
+#define CE4_BASE_ADDRESS			0x00058400
+#define CE5_BASE_ADDRESS			0x00058800
+#define CE6_BASE_ADDRESS			0x00058c00
+#define CE7_BASE_ADDRESS			0x00059000
+#define DBI_BASE_ADDRESS			0x00060000
+#define WLAN_ANALOG_INTF_PCIE_BASE_ADDRESS	0x0006c000
+#define PCIE_LOCAL_BASE_ADDRESS			0x00080000
+
+#define SOC_RESET_CONTROL_OFFSET		0x00000000
+#define SOC_RESET_CONTROL_SI0_RST_MASK		0x00000001
+#define SOC_CPU_CLOCK_OFFSET			0x00000020
+#define SOC_CPU_CLOCK_STANDARD_LSB		0
+#define SOC_CPU_CLOCK_STANDARD_MASK		0x00000003
+#define SOC_CLOCK_CONTROL_OFFSET		0x00000028
+#define SOC_CLOCK_CONTROL_SI0_CLK_MASK		0x00000001
+#define SOC_SYSTEM_SLEEP_OFFSET			0x000000c4
+#define SOC_LPO_CAL_OFFSET			0x000000e0
+#define SOC_LPO_CAL_ENABLE_LSB			20
+#define SOC_LPO_CAL_ENABLE_MASK			0x00100000
+
+#define WLAN_RESET_CONTROL_COLD_RST_MASK	0x00000008
+#define WLAN_RESET_CONTROL_WARM_RST_MASK	0x00000004
+#define WLAN_SYSTEM_SLEEP_DISABLE_LSB		0
+#define WLAN_SYSTEM_SLEEP_DISABLE_MASK		0x00000001
+
+#define WLAN_GPIO_PIN0_ADDRESS			0x00000028
+#define WLAN_GPIO_PIN0_CONFIG_MASK		0x00007800
+#define WLAN_GPIO_PIN1_ADDRESS			0x0000002c
+#define WLAN_GPIO_PIN1_CONFIG_MASK		0x00007800
+#define WLAN_GPIO_PIN10_ADDRESS			0x00000050
+#define WLAN_GPIO_PIN11_ADDRESS			0x00000054
+#define WLAN_GPIO_PIN12_ADDRESS			0x00000058
+#define WLAN_GPIO_PIN13_ADDRESS			0x0000005c
+
+#define CLOCK_GPIO_OFFSET			0xffffffff
+#define CLOCK_GPIO_BT_CLK_OUT_EN_LSB		0
+#define CLOCK_GPIO_BT_CLK_OUT_EN_MASK		0
+
+#define SI_CONFIG_OFFSET			0x00000000
+#define SI_CONFIG_BIDIR_OD_DATA_LSB		18
+#define SI_CONFIG_BIDIR_OD_DATA_MASK		0x00040000
+#define SI_CONFIG_I2C_LSB			16
+#define SI_CONFIG_I2C_MASK			0x00010000
+#define SI_CONFIG_POS_SAMPLE_LSB		7
+#define SI_CONFIG_POS_SAMPLE_MASK		0x00000080
+#define SI_CONFIG_INACTIVE_DATA_LSB		5
+#define SI_CONFIG_INACTIVE_DATA_MASK		0x00000020
+#define SI_CONFIG_INACTIVE_CLK_LSB		4
+#define SI_CONFIG_INACTIVE_CLK_MASK		0x00000010
+#define SI_CONFIG_DIVIDER_LSB			0
+#define SI_CONFIG_DIVIDER_MASK			0x0000000f
+#define SI_CS_OFFSET				0x00000004
+#define SI_CS_DONE_ERR_MASK			0x00000400
+#define SI_CS_DONE_INT_MASK			0x00000200
+#define SI_CS_START_LSB				8
+#define SI_CS_START_MASK			0x00000100
+#define SI_CS_RX_CNT_LSB			4
+#define SI_CS_RX_CNT_MASK			0x000000f0
+#define SI_CS_TX_CNT_LSB			0
+#define SI_CS_TX_CNT_MASK			0x0000000f
+
+#define SI_TX_DATA0_OFFSET			0x00000008
+#define SI_TX_DATA1_OFFSET			0x0000000c
+#define SI_RX_DATA0_OFFSET			0x00000010
+#define SI_RX_DATA1_OFFSET			0x00000014
+
+#define CORE_CTRL_CPU_INTR_MASK			0x00002000
+#define CORE_CTRL_ADDRESS			0x0000
+#define PCIE_INTR_ENABLE_ADDRESS		0x0008
+#define PCIE_INTR_CLR_ADDRESS			0x0014
+#define SCRATCH_3_ADDRESS			0x0030
+
+/* Firmware indications to the Host via SCRATCH_3 register. */
+#define FW_INDICATOR_ADDRESS	(SOC_CORE_BASE_ADDRESS + SCRATCH_3_ADDRESS)
+#define FW_IND_EVENT_PENDING			1
+#define FW_IND_INITIALIZED			2
+
+/* HOST_REG interrupt from firmware */
+#define PCIE_INTR_FIRMWARE_MASK			0x00000400
+#define PCIE_INTR_CE_MASK_ALL			0x0007f800
+
+#define DRAM_BASE_ADDRESS			0x00400000
+
+#define MISSING 0
+
+#define SYSTEM_SLEEP_OFFSET			SOC_SYSTEM_SLEEP_OFFSET
+#define WLAN_SYSTEM_SLEEP_OFFSET		SOC_SYSTEM_SLEEP_OFFSET
+#define WLAN_RESET_CONTROL_OFFSET		SOC_RESET_CONTROL_OFFSET
+#define CLOCK_CONTROL_OFFSET			SOC_CLOCK_CONTROL_OFFSET
+#define CLOCK_CONTROL_SI0_CLK_MASK		SOC_CLOCK_CONTROL_SI0_CLK_MASK
+#define RESET_CONTROL_MBOX_RST_MASK		MISSING
+#define RESET_CONTROL_SI0_RST_MASK		SOC_RESET_CONTROL_SI0_RST_MASK
+#define GPIO_BASE_ADDRESS			WLAN_GPIO_BASE_ADDRESS
+#define GPIO_PIN0_OFFSET			WLAN_GPIO_PIN0_ADDRESS
+#define GPIO_PIN1_OFFSET			WLAN_GPIO_PIN1_ADDRESS
+#define GPIO_PIN0_CONFIG_MASK			WLAN_GPIO_PIN0_CONFIG_MASK
+#define GPIO_PIN1_CONFIG_MASK			WLAN_GPIO_PIN1_CONFIG_MASK
+#define SI_BASE_ADDRESS				WLAN_SI_BASE_ADDRESS
+#define SCRATCH_BASE_ADDRESS			SOC_CORE_BASE_ADDRESS
+#define LOCAL_SCRATCH_OFFSET			0x18
+#define CPU_CLOCK_OFFSET			SOC_CPU_CLOCK_OFFSET
+#define LPO_CAL_OFFSET				SOC_LPO_CAL_OFFSET
+#define GPIO_PIN10_OFFSET			WLAN_GPIO_PIN10_ADDRESS
+#define GPIO_PIN11_OFFSET			WLAN_GPIO_PIN11_ADDRESS
+#define GPIO_PIN12_OFFSET			WLAN_GPIO_PIN12_ADDRESS
+#define GPIO_PIN13_OFFSET			WLAN_GPIO_PIN13_ADDRESS
+#define CPU_CLOCK_STANDARD_LSB			SOC_CPU_CLOCK_STANDARD_LSB
+#define CPU_CLOCK_STANDARD_MASK			SOC_CPU_CLOCK_STANDARD_MASK
+#define LPO_CAL_ENABLE_LSB			SOC_LPO_CAL_ENABLE_LSB
+#define LPO_CAL_ENABLE_MASK			SOC_LPO_CAL_ENABLE_MASK
+#define ANALOG_INTF_BASE_ADDRESS		WLAN_ANALOG_INTF_BASE_ADDRESS
+#define MBOX_BASE_ADDRESS			MISSING
+#define INT_STATUS_ENABLE_ERROR_LSB		MISSING
+#define INT_STATUS_ENABLE_ERROR_MASK		MISSING
+#define INT_STATUS_ENABLE_CPU_LSB		MISSING
+#define INT_STATUS_ENABLE_CPU_MASK		MISSING
+#define INT_STATUS_ENABLE_COUNTER_LSB		MISSING
+#define INT_STATUS_ENABLE_COUNTER_MASK		MISSING
+#define INT_STATUS_ENABLE_MBOX_DATA_LSB		MISSING
+#define INT_STATUS_ENABLE_MBOX_DATA_MASK	MISSING
+#define ERROR_STATUS_ENABLE_RX_UNDERFLOW_LSB	MISSING
+#define ERROR_STATUS_ENABLE_RX_UNDERFLOW_MASK	MISSING
+#define ERROR_STATUS_ENABLE_TX_OVERFLOW_LSB	MISSING
+#define ERROR_STATUS_ENABLE_TX_OVERFLOW_MASK	MISSING
+#define COUNTER_INT_STATUS_ENABLE_BIT_LSB	MISSING
+#define COUNTER_INT_STATUS_ENABLE_BIT_MASK	MISSING
+#define INT_STATUS_ENABLE_ADDRESS		MISSING
+#define CPU_INT_STATUS_ENABLE_BIT_LSB		MISSING
+#define CPU_INT_STATUS_ENABLE_BIT_MASK		MISSING
+#define HOST_INT_STATUS_ADDRESS			MISSING
+#define CPU_INT_STATUS_ADDRESS			MISSING
+#define ERROR_INT_STATUS_ADDRESS		MISSING
+#define ERROR_INT_STATUS_WAKEUP_MASK		MISSING
+#define ERROR_INT_STATUS_WAKEUP_LSB		MISSING
+#define ERROR_INT_STATUS_RX_UNDERFLOW_MASK	MISSING
+#define ERROR_INT_STATUS_RX_UNDERFLOW_LSB	MISSING
+#define ERROR_INT_STATUS_TX_OVERFLOW_MASK	MISSING
+#define ERROR_INT_STATUS_TX_OVERFLOW_LSB	MISSING
+#define COUNT_DEC_ADDRESS			MISSING
+#define HOST_INT_STATUS_CPU_MASK		MISSING
+#define HOST_INT_STATUS_CPU_LSB			MISSING
+#define HOST_INT_STATUS_ERROR_MASK		MISSING
+#define HOST_INT_STATUS_ERROR_LSB		MISSING
+#define HOST_INT_STATUS_COUNTER_MASK		MISSING
+#define HOST_INT_STATUS_COUNTER_LSB		MISSING
+#define RX_LOOKAHEAD_VALID_ADDRESS		MISSING
+#define WINDOW_DATA_ADDRESS			MISSING
+#define WINDOW_READ_ADDR_ADDRESS		MISSING
+#define WINDOW_WRITE_ADDR_ADDRESS		MISSING
+
+#define RTC_STATE_V_GET(x) (((x) & RTC_STATE_V_MASK) >> RTC_STATE_V_LSB)
+
+#endif /* _HW_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
new file mode 100644
index 0000000..1285554
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -0,0 +1,3066 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "mac.h"
+
+#include <net/mac80211.h>
+#include <linux/etherdevice.h>
+
+#include "core.h"
+#include "debug.h"
+#include "wmi.h"
+#include "htt.h"
+#include "txrx.h"
+
+/**********/
+/* Crypto */
+/**********/
+
+static int ath10k_send_key(struct ath10k_vif *arvif,
+			   struct ieee80211_key_conf *key,
+			   enum set_key_cmd cmd,
+			   const u8 *macaddr)
+{
+	struct wmi_vdev_install_key_arg arg = {
+		.vdev_id = arvif->vdev_id,
+		.key_idx = key->keyidx,
+		.key_len = key->keylen,
+		.key_data = key->key,
+		.macaddr = macaddr,
+	};
+
+	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+		arg.key_flags = WMI_KEY_PAIRWISE;
+	else
+		arg.key_flags = WMI_KEY_GROUP;
+
+	switch (key->cipher) {
+	case WLAN_CIPHER_SUITE_CCMP:
+		arg.key_cipher = WMI_CIPHER_AES_CCM;
+		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+		arg.key_cipher = WMI_CIPHER_TKIP;
+		arg.key_txmic_len = 8;
+		arg.key_rxmic_len = 8;
+		break;
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+		arg.key_cipher = WMI_CIPHER_WEP;
+		/* AP/IBSS mode requires self-key to be groupwise
+		 * Otherwise pairwise key must be set */
+		if (memcmp(macaddr, arvif->vif->addr, ETH_ALEN))
+			arg.key_flags = WMI_KEY_PAIRWISE;
+		break;
+	default:
+		ath10k_warn("cipher %d is not supported\n", key->cipher);
+		return -EOPNOTSUPP;
+	}
+
+	if (cmd == DISABLE_KEY) {
+		arg.key_cipher = WMI_CIPHER_NONE;
+		arg.key_data = NULL;
+	}
+
+	return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
+}
+
+static int ath10k_install_key(struct ath10k_vif *arvif,
+			      struct ieee80211_key_conf *key,
+			      enum set_key_cmd cmd,
+			      const u8 *macaddr)
+{
+	struct ath10k *ar = arvif->ar;
+	int ret;
+
+	INIT_COMPLETION(ar->install_key_done);
+
+	ret = ath10k_send_key(arvif, key, cmd, macaddr);
+	if (ret)
+		return ret;
+
+	ret = wait_for_completion_timeout(&ar->install_key_done, 3*HZ);
+	if (ret == 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
+					const u8 *addr)
+{
+	struct ath10k *ar = arvif->ar;
+	struct ath10k_peer *peer;
+	int ret;
+	int i;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!peer)
+		return -ENOENT;
+
+	for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
+		if (arvif->wep_keys[i] == NULL)
+			continue;
+
+		ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
+					 addr);
+		if (ret)
+			return ret;
+
+		peer->keys[i] = arvif->wep_keys[i];
+	}
+
+	return 0;
+}
+
+static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
+				  const u8 *addr)
+{
+	struct ath10k *ar = arvif->ar;
+	struct ath10k_peer *peer;
+	int first_errno = 0;
+	int ret;
+	int i;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!peer)
+		return -ENOENT;
+
+	for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
+		if (peer->keys[i] == NULL)
+			continue;
+
+		ret = ath10k_install_key(arvif, peer->keys[i],
+					 DISABLE_KEY, addr);
+		if (ret && first_errno == 0)
+			first_errno = ret;
+
+		if (ret)
+			ath10k_warn("could not remove peer wep key %d (%d)\n",
+				    i, ret);
+
+		peer->keys[i] = NULL;
+	}
+
+	return first_errno;
+}
+
+static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
+				 struct ieee80211_key_conf *key)
+{
+	struct ath10k *ar = arvif->ar;
+	struct ath10k_peer *peer;
+	u8 addr[ETH_ALEN];
+	int first_errno = 0;
+	int ret;
+	int i;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	for (;;) {
+		/* since ath10k_install_key we can't hold data_lock all the
+		 * time, so we try to remove the keys incrementally */
+		spin_lock_bh(&ar->data_lock);
+		i = 0;
+		list_for_each_entry(peer, &ar->peers, list) {
+			for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
+				if (peer->keys[i] == key) {
+					memcpy(addr, peer->addr, ETH_ALEN);
+					peer->keys[i] = NULL;
+					break;
+				}
+			}
+
+			if (i < ARRAY_SIZE(peer->keys))
+				break;
+		}
+		spin_unlock_bh(&ar->data_lock);
+
+		if (i == ARRAY_SIZE(peer->keys))
+			break;
+
+		ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr);
+		if (ret && first_errno == 0)
+			first_errno = ret;
+
+		if (ret)
+			ath10k_warn("could not remove key for %pM\n", addr);
+	}
+
+	return first_errno;
+}
+
+
+/*********************/
+/* General utilities */
+/*********************/
+
+static inline enum wmi_phy_mode
+chan_to_phymode(const struct cfg80211_chan_def *chandef)
+{
+	enum wmi_phy_mode phymode = MODE_UNKNOWN;
+
+	switch (chandef->chan->band) {
+	case IEEE80211_BAND_2GHZ:
+		switch (chandef->width) {
+		case NL80211_CHAN_WIDTH_20_NOHT:
+			phymode = MODE_11G;
+			break;
+		case NL80211_CHAN_WIDTH_20:
+			phymode = MODE_11NG_HT20;
+			break;
+		case NL80211_CHAN_WIDTH_40:
+			phymode = MODE_11NG_HT40;
+			break;
+		case NL80211_CHAN_WIDTH_80:
+		case NL80211_CHAN_WIDTH_80P80:
+		case NL80211_CHAN_WIDTH_160:
+			phymode = MODE_UNKNOWN;
+			break;
+		}
+		break;
+	case IEEE80211_BAND_5GHZ:
+		switch (chandef->width) {
+		case NL80211_CHAN_WIDTH_20_NOHT:
+			phymode = MODE_11A;
+			break;
+		case NL80211_CHAN_WIDTH_20:
+			phymode = MODE_11NA_HT20;
+			break;
+		case NL80211_CHAN_WIDTH_40:
+			phymode = MODE_11NA_HT40;
+			break;
+		case NL80211_CHAN_WIDTH_80:
+			phymode = MODE_11AC_VHT80;
+			break;
+		case NL80211_CHAN_WIDTH_80P80:
+		case NL80211_CHAN_WIDTH_160:
+			phymode = MODE_UNKNOWN;
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	WARN_ON(phymode == MODE_UNKNOWN);
+	return phymode;
+}
+
+static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
+{
+/*
+ * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
+ *   0 for no restriction
+ *   1 for 1/4 us
+ *   2 for 1/2 us
+ *   3 for 1 us
+ *   4 for 2 us
+ *   5 for 4 us
+ *   6 for 8 us
+ *   7 for 16 us
+ */
+	switch (mpdudensity) {
+	case 0:
+		return 0;
+	case 1:
+	case 2:
+	case 3:
+	/* Our lower layer calculations limit our precision to
+	   1 microsecond */
+		return 1;
+	case 4:
+		return 2;
+	case 5:
+		return 4;
+	case 6:
+		return 8;
+	case 7:
+		return 16;
+	default:
+		return 0;
+	}
+}
+
+static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	ret = ath10k_wmi_peer_create(ar, vdev_id, addr);
+	if (ret)
+		return ret;
+
+	ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
+	if (ret)
+		return ret;
+
+	ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
+{
+	struct ath10k_peer *peer, *tmp;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
+		if (peer->vdev_id != vdev_id)
+			continue;
+
+		ath10k_warn("removing stale peer %pM from vdev_id %d\n",
+			    peer->addr, vdev_id);
+
+		list_del(&peer->list);
+		kfree(peer);
+	}
+	spin_unlock_bh(&ar->data_lock);
+}
+
+/************************/
+/* Interface management */
+/************************/
+
+static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
+{
+	int ret;
+
+	ret = wait_for_completion_timeout(&ar->vdev_setup_done,
+					  ATH10K_VDEV_SETUP_TIMEOUT_HZ);
+	if (ret == 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int ath10k_vdev_start(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+	struct ieee80211_conf *conf = &ar->hw->conf;
+	struct ieee80211_channel *channel = conf->chandef.chan;
+	struct wmi_vdev_start_request_arg arg = {};
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	INIT_COMPLETION(ar->vdev_setup_done);
+
+	arg.vdev_id = arvif->vdev_id;
+	arg.dtim_period = arvif->dtim_period;
+	arg.bcn_intval = arvif->beacon_interval;
+
+	arg.channel.freq = channel->center_freq;
+
+	arg.channel.band_center_freq1 = conf->chandef.center_freq1;
+
+	arg.channel.mode = chan_to_phymode(&conf->chandef);
+
+	arg.channel.min_power = channel->max_power * 3;
+	arg.channel.max_power = channel->max_power * 4;
+	arg.channel.max_reg_power = channel->max_reg_power * 4;
+	arg.channel.max_antenna_gain = channel->max_antenna_gain;
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
+		arg.ssid = arvif->u.ap.ssid;
+		arg.ssid_len = arvif->u.ap.ssid_len;
+		arg.hidden_ssid = arvif->u.ap.hidden_ssid;
+	} else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
+		arg.ssid = arvif->vif->bss_conf.ssid;
+		arg.ssid_len = arvif->vif->bss_conf.ssid_len;
+	}
+
+	ret = ath10k_wmi_vdev_start(ar, &arg);
+	if (ret) {
+		ath10k_warn("WMI vdev start failed: ret %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret) {
+		ath10k_warn("vdev setup failed %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ath10k_vdev_stop(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	INIT_COMPLETION(ar->vdev_setup_done);
+
+	ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
+	if (ret) {
+		ath10k_warn("WMI vdev stop failed: ret %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret) {
+		ath10k_warn("vdev setup failed %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
+{
+	struct ieee80211_channel *channel = ar->hw->conf.chandef.chan;
+	struct wmi_vdev_start_request_arg arg = {};
+	enum nl80211_channel_type type;
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	type = cfg80211_get_chandef_type(&ar->hw->conf.chandef);
+
+	arg.vdev_id = vdev_id;
+	arg.channel.freq = channel->center_freq;
+	arg.channel.band_center_freq1 = ar->hw->conf.chandef.center_freq1;
+
+	/* TODO setup this dynamically, what in case we
+	   don't have any vifs? */
+	arg.channel.mode = chan_to_phymode(&ar->hw->conf.chandef);
+
+	arg.channel.min_power = channel->max_power * 3;
+	arg.channel.max_power = channel->max_power * 4;
+	arg.channel.max_reg_power = channel->max_reg_power * 4;
+	arg.channel.max_antenna_gain = channel->max_antenna_gain;
+
+	ret = ath10k_wmi_vdev_start(ar, &arg);
+	if (ret) {
+		ath10k_warn("Monitor vdev start failed: ret %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret) {
+		ath10k_warn("Monitor vdev setup failed %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
+	if (ret) {
+		ath10k_warn("Monitor vdev up failed: %d\n", ret);
+		goto vdev_stop;
+	}
+
+	ar->monitor_vdev_id = vdev_id;
+	ar->monitor_enabled = true;
+
+	return 0;
+
+vdev_stop:
+	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
+	if (ret)
+		ath10k_warn("Monitor vdev stop failed: %d\n", ret);
+
+	return ret;
+}
+
+static int ath10k_monitor_stop(struct ath10k *ar)
+{
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	/* For some reasons, ath10k_wmi_vdev_down() here couse
+	 * often ath10k_wmi_vdev_stop() to fail. Next we could
+	 * not run monitor vdev and driver reload
+	 * required. Don't see such problems we skip
+	 * ath10k_wmi_vdev_down() here.
+	 */
+
+	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
+	if (ret)
+		ath10k_warn("Monitor vdev stop failed: %d\n", ret);
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret)
+		ath10k_warn("Monitor_down sync failed: %d\n", ret);
+
+	ar->monitor_enabled = false;
+	return ret;
+}
+
+static int ath10k_monitor_create(struct ath10k *ar)
+{
+	int bit, ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (ar->monitor_present) {
+		ath10k_warn("Monitor mode already enabled\n");
+		return 0;
+	}
+
+	bit = ffs(ar->free_vdev_map);
+	if (bit == 0) {
+		ath10k_warn("No free VDEV slots\n");
+		return -ENOMEM;
+	}
+
+	ar->monitor_vdev_id = bit - 1;
+	ar->free_vdev_map &= ~(1 << ar->monitor_vdev_id);
+
+	ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
+				     WMI_VDEV_TYPE_MONITOR,
+				     0, ar->mac_addr);
+	if (ret) {
+		ath10k_warn("WMI vdev monitor create failed: ret %d\n", ret);
+		goto vdev_fail;
+	}
+
+	ath10k_dbg(ATH10K_DBG_MAC, "Monitor interface created, vdev id: %d\n",
+		   ar->monitor_vdev_id);
+
+	ar->monitor_present = true;
+	return 0;
+
+vdev_fail:
+	/*
+	 * Restore the ID to the global map.
+	 */
+	ar->free_vdev_map |= 1 << (ar->monitor_vdev_id);
+	return ret;
+}
+
+static int ath10k_monitor_destroy(struct ath10k *ar)
+{
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (!ar->monitor_present)
+		return 0;
+
+	ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
+	if (ret) {
+		ath10k_warn("WMI vdev monitor delete failed: %d\n", ret);
+		return ret;
+	}
+
+	ar->free_vdev_map |= 1 << (ar->monitor_vdev_id);
+	ar->monitor_present = false;
+
+	ath10k_dbg(ATH10K_DBG_MAC, "Monitor interface destroyed, vdev id: %d\n",
+		   ar->monitor_vdev_id);
+	return ret;
+}
+
+static void ath10k_control_beaconing(struct ath10k_vif *arvif,
+				struct ieee80211_bss_conf *info)
+{
+	int ret = 0;
+
+	if (!info->enable_beacon) {
+		ath10k_vdev_stop(arvif);
+		return;
+	}
+
+	arvif->tx_seq_no = 0x1000;
+
+	ret = ath10k_vdev_start(arvif);
+	if (ret)
+		return;
+
+	ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, 0, info->bssid);
+	if (ret) {
+		ath10k_warn("Failed to bring up VDEV: %d\n",
+			    arvif->vdev_id);
+		return;
+	}
+	ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d up\n", arvif->vdev_id);
+}
+
+static void ath10k_control_ibss(struct ath10k_vif *arvif,
+				struct ieee80211_bss_conf *info,
+				const u8 self_peer[ETH_ALEN])
+{
+	int ret = 0;
+
+	if (!info->ibss_joined) {
+		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, self_peer);
+		if (ret)
+			ath10k_warn("Failed to delete IBSS self peer:%pM for VDEV:%d ret:%d\n",
+				    self_peer, arvif->vdev_id, ret);
+
+		if (is_zero_ether_addr(arvif->u.ibss.bssid))
+			return;
+
+		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id,
+					 arvif->u.ibss.bssid);
+		if (ret) {
+			ath10k_warn("Failed to delete IBSS BSSID peer:%pM for VDEV:%d ret:%d\n",
+				    arvif->u.ibss.bssid, arvif->vdev_id, ret);
+			return;
+		}
+
+		memset(arvif->u.ibss.bssid, 0, ETH_ALEN);
+
+		return;
+	}
+
+	ret = ath10k_peer_create(arvif->ar, arvif->vdev_id, self_peer);
+	if (ret) {
+		ath10k_warn("Failed to create IBSS self peer:%pM for VDEV:%d ret:%d\n",
+			    self_peer, arvif->vdev_id, ret);
+		return;
+	}
+
+	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id,
+					WMI_VDEV_PARAM_ATIM_WINDOW,
+					ATH10K_DEFAULT_ATIM);
+	if (ret)
+		ath10k_warn("Failed to set IBSS ATIM for VDEV:%d ret:%d\n",
+			    arvif->vdev_id, ret);
+}
+
+/*
+ * Review this when mac80211 gains per-interface powersave support.
+ */
+static void ath10k_ps_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct ath10k_generic_iter *ar_iter = data;
+	struct ieee80211_conf *conf = &ar_iter->ar->hw->conf;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	enum wmi_sta_powersave_param param;
+	enum wmi_sta_ps_mode psmode;
+	int ret;
+
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return;
+
+	if (conf->flags & IEEE80211_CONF_PS) {
+		psmode = WMI_STA_PS_MODE_ENABLED;
+		param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
+
+		ret = ath10k_wmi_set_sta_ps_param(ar_iter->ar,
+						  arvif->vdev_id,
+						  param,
+						  conf->dynamic_ps_timeout);
+		if (ret) {
+			ath10k_warn("Failed to set inactivity time for VDEV: %d\n",
+				    arvif->vdev_id);
+			return;
+		}
+
+		ar_iter->ret = ret;
+	} else {
+		psmode = WMI_STA_PS_MODE_DISABLED;
+	}
+
+	ar_iter->ret = ath10k_wmi_set_psmode(ar_iter->ar, arvif->vdev_id,
+					     psmode);
+	if (ar_iter->ret)
+		ath10k_warn("Failed to set PS Mode: %d for VDEV: %d\n",
+			    psmode, arvif->vdev_id);
+	else
+		ath10k_dbg(ATH10K_DBG_MAC, "Set PS Mode: %d for VDEV: %d\n",
+			   psmode, arvif->vdev_id);
+}
+
+/**********************/
+/* Station management */
+/**********************/
+
+static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
+				      struct ath10k_vif *arvif,
+				      struct ieee80211_sta *sta,
+				      struct ieee80211_bss_conf *bss_conf,
+				      struct wmi_peer_assoc_complete_arg *arg)
+{
+	memcpy(arg->addr, sta->addr, ETH_ALEN);
+	arg->vdev_id = arvif->vdev_id;
+	arg->peer_aid = sta->aid;
+	arg->peer_flags |= WMI_PEER_AUTH;
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
+		/*
+		 * Seems FW have problems with Power Save in STA
+		 * mode when we setup this parameter to high (eg. 5).
+		 * Often we see that FW don't send NULL (with clean P flags)
+		 * frame even there is info about buffered frames in beacons.
+		 * Sometimes we have to wait more than 10 seconds before FW
+		 * will wakeup. Often sending one ping from AP to our device
+		 * just fail (more than 50%).
+		 *
+		 * Seems setting this FW parameter to 1 couse FW
+		 * will check every beacon and will wakup immediately
+		 * after detection buffered data.
+		 */
+		arg->peer_listen_intval = 1;
+	else
+		arg->peer_listen_intval = ar->hw->conf.listen_interval;
+
+	arg->peer_num_spatial_streams = 1;
+
+	/*
+	 * The assoc capabilities are available only in managed mode.
+	 */
+	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && bss_conf)
+		arg->peer_caps = bss_conf->assoc_capability;
+}
+
+static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
+				       struct ath10k_vif *arvif,
+				       struct wmi_peer_assoc_complete_arg *arg)
+{
+	struct ieee80211_vif *vif = arvif->vif;
+	struct ieee80211_bss_conf *info = &vif->bss_conf;
+	struct cfg80211_bss *bss;
+	const u8 *rsnie = NULL;
+	const u8 *wpaie = NULL;
+
+	bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
+			       info->bssid, NULL, 0, 0, 0);
+	if (bss) {
+		const struct cfg80211_bss_ies *ies;
+
+		rcu_read_lock();
+		rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);
+
+		ies = rcu_dereference(bss->ies);
+
+		wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
+				WLAN_OUI_TYPE_MICROSOFT_WPA,
+				ies->data,
+				ies->len);
+		rcu_read_unlock();
+		cfg80211_put_bss(ar->hw->wiphy, bss);
+	}
+
+	/* FIXME: base on RSN IE/WPA IE is a correct idea? */
+	if (rsnie || wpaie) {
+		ath10k_dbg(ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
+		arg->peer_flags |= WMI_PEER_NEED_PTK_4_WAY;
+	}
+
+	if (wpaie) {
+		ath10k_dbg(ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
+		arg->peer_flags |= WMI_PEER_NEED_GTK_2_WAY;
+	}
+}
+
+static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
+				      struct ieee80211_sta *sta,
+				      struct wmi_peer_assoc_complete_arg *arg)
+{
+	struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
+	const struct ieee80211_supported_band *sband;
+	const struct ieee80211_rate *rates;
+	u32 ratemask;
+	int i;
+
+	sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
+	ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
+	rates = sband->bitrates;
+
+	rateset->num_rates = 0;
+
+	for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
+		if (!(ratemask & 1))
+			continue;
+
+		rateset->rates[rateset->num_rates] = rates->hw_value;
+		rateset->num_rates++;
+	}
+}
+
+static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
+				   struct ieee80211_sta *sta,
+				   struct wmi_peer_assoc_complete_arg *arg)
+{
+	const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
+	int smps;
+	int i, n;
+
+	if (!ht_cap->ht_supported)
+		return;
+
+	arg->peer_flags |= WMI_PEER_HT;
+	arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+				    ht_cap->ampdu_factor)) - 1;
+
+	arg->peer_mpdu_density =
+		ath10k_parse_mpdudensity(ht_cap->ampdu_density);
+
+	arg->peer_ht_caps = ht_cap->cap;
+	arg->peer_rate_caps |= WMI_RC_HT_FLAG;
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
+		arg->peer_flags |= WMI_PEER_LDPC;
+
+	if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
+		arg->peer_flags |= WMI_PEER_40MHZ;
+		arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
+	}
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
+		arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
+		arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
+		arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
+		arg->peer_flags |= WMI_PEER_STBC;
+	}
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
+		u32 stbc;
+		stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
+		stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
+		stbc = stbc << WMI_RC_RX_STBC_FLAG_S;
+		arg->peer_rate_caps |= stbc;
+		arg->peer_flags |= WMI_PEER_STBC;
+	}
+
+	smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
+	smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
+
+	if (smps == WLAN_HT_CAP_SM_PS_STATIC) {
+		arg->peer_flags |= WMI_PEER_SPATIAL_MUX;
+		arg->peer_flags |= WMI_PEER_STATIC_MIMOPS;
+	} else if (smps == WLAN_HT_CAP_SM_PS_DYNAMIC) {
+		arg->peer_flags |= WMI_PEER_SPATIAL_MUX;
+		arg->peer_flags |= WMI_PEER_DYN_MIMOPS;
+	}
+
+	if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
+		arg->peer_rate_caps |= WMI_RC_TS_FLAG;
+	else if (ht_cap->mcs.rx_mask[1])
+		arg->peer_rate_caps |= WMI_RC_DS_FLAG;
+
+	for (i = 0, n = 0; i < IEEE80211_HT_MCS_MASK_LEN*8; i++)
+		if (ht_cap->mcs.rx_mask[i/8] & (1 << i%8))
+			arg->peer_ht_rates.rates[n++] = i;
+
+	arg->peer_ht_rates.num_rates = n;
+	arg->peer_num_spatial_streams = max((n+7) / 8, 1);
+
+	ath10k_dbg(ATH10K_DBG_MAC, "mcs cnt %d nss %d\n",
+		   arg->peer_ht_rates.num_rates,
+		   arg->peer_num_spatial_streams);
+}
+
+static void ath10k_peer_assoc_h_qos_ap(struct ath10k *ar,
+				       struct ath10k_vif *arvif,
+				       struct ieee80211_sta *sta,
+				       struct ieee80211_bss_conf *bss_conf,
+				       struct wmi_peer_assoc_complete_arg *arg)
+{
+	u32 uapsd = 0;
+	u32 max_sp = 0;
+
+	if (sta->wme)
+		arg->peer_flags |= WMI_PEER_QOS;
+
+	if (sta->wme && sta->uapsd_queues) {
+		ath10k_dbg(ATH10K_DBG_MAC, "uapsd_queues: 0x%X, max_sp: %d\n",
+			   sta->uapsd_queues, sta->max_sp);
+
+		arg->peer_flags |= WMI_PEER_APSD;
+		arg->peer_flags |= WMI_RC_UAPSD_FLAG;
+
+		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
+			uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
+				 WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
+		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
+			uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
+				 WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
+		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
+			uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
+				 WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
+		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
+			uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
+				 WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;
+
+
+		if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
+			max_sp = sta->max_sp;
+
+		ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
+					   sta->addr,
+					   WMI_AP_PS_PEER_PARAM_UAPSD,
+					   uapsd);
+
+		ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
+					   sta->addr,
+					   WMI_AP_PS_PEER_PARAM_MAX_SP,
+					   max_sp);
+
+		/* TODO setup this based on STA listen interval and
+		   beacon interval. Currently we don't know
+		   sta->listen_interval - mac80211 patch required.
+		   Currently use 10 seconds */
+		ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
+					   sta->addr,
+					   WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
+					   10);
+	}
+}
+
+static void ath10k_peer_assoc_h_qos_sta(struct ath10k *ar,
+					struct ath10k_vif *arvif,
+					struct ieee80211_sta *sta,
+					struct ieee80211_bss_conf *bss_conf,
+					struct wmi_peer_assoc_complete_arg *arg)
+{
+	if (bss_conf->qos)
+		arg->peer_flags |= WMI_PEER_QOS;
+}
+
+static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
+				    struct ieee80211_sta *sta,
+				    struct wmi_peer_assoc_complete_arg *arg)
+{
+	const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
+
+	if (!vht_cap->vht_supported)
+		return;
+
+	arg->peer_flags |= WMI_PEER_VHT;
+
+	arg->peer_vht_caps = vht_cap->cap;
+
+	if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
+		arg->peer_flags |= WMI_PEER_80MHZ;
+
+	arg->peer_vht_rates.rx_max_rate =
+		__le16_to_cpu(vht_cap->vht_mcs.rx_highest);
+	arg->peer_vht_rates.rx_mcs_set =
+		__le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
+	arg->peer_vht_rates.tx_max_rate =
+		__le16_to_cpu(vht_cap->vht_mcs.tx_highest);
+	arg->peer_vht_rates.tx_mcs_set =
+		__le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);
+
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vht peer\n");
+}
+
+static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
+				    struct ath10k_vif *arvif,
+				    struct ieee80211_sta *sta,
+				    struct ieee80211_bss_conf *bss_conf,
+				    struct wmi_peer_assoc_complete_arg *arg)
+{
+	switch (arvif->vdev_type) {
+	case WMI_VDEV_TYPE_AP:
+		ath10k_peer_assoc_h_qos_ap(ar, arvif, sta, bss_conf, arg);
+		break;
+	case WMI_VDEV_TYPE_STA:
+		ath10k_peer_assoc_h_qos_sta(ar, arvif, sta, bss_conf, arg);
+		break;
+	default:
+		break;
+	}
+}
+
+static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
+					struct ath10k_vif *arvif,
+					struct ieee80211_sta *sta,
+					struct wmi_peer_assoc_complete_arg *arg)
+{
+	enum wmi_phy_mode phymode = MODE_UNKNOWN;
+
+	/* FIXME: add VHT */
+
+	switch (ar->hw->conf.chandef.chan->band) {
+	case IEEE80211_BAND_2GHZ:
+		if (sta->ht_cap.ht_supported) {
+			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
+				phymode = MODE_11NG_HT40;
+			else
+				phymode = MODE_11NG_HT20;
+		} else {
+			phymode = MODE_11G;
+		}
+
+		break;
+	case IEEE80211_BAND_5GHZ:
+		if (sta->ht_cap.ht_supported) {
+			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
+				phymode = MODE_11NA_HT40;
+			else
+				phymode = MODE_11NA_HT20;
+		} else {
+			phymode = MODE_11A;
+		}
+
+		break;
+	default:
+		break;
+	}
+
+	arg->peer_phymode = phymode;
+	WARN_ON(phymode == MODE_UNKNOWN);
+}
+
+static int ath10k_peer_assoc(struct ath10k *ar,
+			     struct ath10k_vif *arvif,
+			     struct ieee80211_sta *sta,
+			     struct ieee80211_bss_conf *bss_conf)
+{
+	struct wmi_peer_assoc_complete_arg arg;
+
+	memset(&arg, 0, sizeof(struct wmi_peer_assoc_complete_arg));
+
+	ath10k_peer_assoc_h_basic(ar, arvif, sta, bss_conf, &arg);
+	ath10k_peer_assoc_h_crypto(ar, arvif, &arg);
+	ath10k_peer_assoc_h_rates(ar, sta, &arg);
+	ath10k_peer_assoc_h_ht(ar, sta, &arg);
+	ath10k_peer_assoc_h_vht(ar, sta, &arg);
+	ath10k_peer_assoc_h_qos(ar, arvif, sta, bss_conf, &arg);
+	ath10k_peer_assoc_h_phymode(ar, arvif, sta, &arg);
+
+	return ath10k_wmi_peer_assoc(ar, &arg);
+}
+
+/* can be called only in mac80211 callbacks due to `key_count` usage */
+static void ath10k_bss_assoc(struct ieee80211_hw *hw,
+			     struct ieee80211_vif *vif,
+			     struct ieee80211_bss_conf *bss_conf)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ieee80211_sta *ap_sta;
+	int ret;
+
+	rcu_read_lock();
+
+	ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
+	if (!ap_sta) {
+		ath10k_warn("Failed to find station entry for %pM\n",
+			    bss_conf->bssid);
+		rcu_read_unlock();
+		return;
+	}
+
+	ret = ath10k_peer_assoc(ar, arvif, ap_sta, bss_conf);
+	if (ret) {
+		ath10k_warn("Peer assoc failed for %pM\n", bss_conf->bssid);
+		rcu_read_unlock();
+		return;
+	}
+
+	rcu_read_unlock();
+
+	ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, bss_conf->aid,
+				 bss_conf->bssid);
+	if (ret)
+		ath10k_warn("VDEV: %d up failed: ret %d\n",
+			    arvif->vdev_id, ret);
+	else
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "VDEV: %d associated, BSSID: %pM, AID: %d\n",
+			   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
+}
+
+/*
+ * FIXME: flush TIDs
+ */
+static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	int ret;
+
+	/*
+	 * For some reason, calling VDEV-DOWN before VDEV-STOP
+	 * makes the FW to send frames via HTT after disassociation.
+	 * No idea why this happens, even though VDEV-DOWN is supposed
+	 * to be analogous to link down, so just stop the VDEV.
+	 */
+	ret = ath10k_vdev_stop(arvif);
+	if (!ret)
+		ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d stopped\n",
+			   arvif->vdev_id);
+
+	/*
+	 * If we don't call VDEV-DOWN after VDEV-STOP FW will remain active and
+	 * report beacons from previously associated network through HTT.
+	 * This in turn would spam mac80211 WARN_ON if we bring down all
+	 * interfaces as it expects there is no rx when no interface is
+	 * running.
+	 */
+	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+	if (ret)
+		ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d ath10k_wmi_vdev_down failed (%d)\n",
+			   arvif->vdev_id, ret);
+
+	ath10k_wmi_flush_tx(ar);
+
+	arvif->def_wep_key_index = 0;
+}
+
+static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
+				struct ieee80211_sta *sta)
+{
+	int ret = 0;
+
+	ret = ath10k_peer_assoc(ar, arvif, sta, NULL);
+	if (ret) {
+		ath10k_warn("WMI peer assoc failed for %pM\n", sta->addr);
+		return ret;
+	}
+
+	ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
+	if (ret) {
+		ath10k_warn("could not install peer wep keys (%d)\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ath10k_station_disassoc(struct ath10k *ar, struct ath10k_vif *arvif,
+				   struct ieee80211_sta *sta)
+{
+	int ret = 0;
+
+	ret = ath10k_clear_peer_keys(arvif, sta->addr);
+	if (ret) {
+		ath10k_warn("could not clear all peer wep keys (%d)\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+/**************/
+/* Regulatory */
+/**************/
+
+static int ath10k_update_channel_list(struct ath10k *ar)
+{
+	struct ieee80211_hw *hw = ar->hw;
+	struct ieee80211_supported_band **bands;
+	enum ieee80211_band band;
+	struct ieee80211_channel *channel;
+	struct wmi_scan_chan_list_arg arg = {0};
+	struct wmi_channel_arg *ch;
+	bool passive;
+	int len;
+	int ret;
+	int i;
+
+	bands = hw->wiphy->bands;
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		if (!bands[band])
+			continue;
+
+		for (i = 0; i < bands[band]->n_channels; i++) {
+			if (bands[band]->channels[i].flags &
+			    IEEE80211_CHAN_DISABLED)
+				continue;
+
+			arg.n_channels++;
+		}
+	}
+
+	len = sizeof(struct wmi_channel_arg) * arg.n_channels;
+	arg.channels = kzalloc(len, GFP_KERNEL);
+	if (!arg.channels)
+		return -ENOMEM;
+
+	ch = arg.channels;
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		if (!bands[band])
+			continue;
+
+		for (i = 0; i < bands[band]->n_channels; i++) {
+			channel = &bands[band]->channels[i];
+
+			if (channel->flags & IEEE80211_CHAN_DISABLED)
+				continue;
+
+			ch->allow_ht   = true;
+
+			/* FIXME: when should we really allow VHT? */
+			ch->allow_vht = true;
+
+			ch->allow_ibss =
+				!(channel->flags & IEEE80211_CHAN_NO_IBSS);
+
+			ch->ht40plus =
+				!(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);
+
+			passive = channel->flags & IEEE80211_CHAN_PASSIVE_SCAN;
+			ch->passive = passive;
+
+			ch->freq = channel->center_freq;
+			ch->min_power = channel->max_power * 3;
+			ch->max_power = channel->max_power * 4;
+			ch->max_reg_power = channel->max_reg_power * 4;
+			ch->max_antenna_gain = channel->max_antenna_gain;
+			ch->reg_class_id = 0; /* FIXME */
+
+			/* FIXME: why use only legacy modes, why not any
+			 * HT/VHT modes? Would that even make any
+			 * difference? */
+			if (channel->band == IEEE80211_BAND_2GHZ)
+				ch->mode = MODE_11G;
+			else
+				ch->mode = MODE_11A;
+
+			if (WARN_ON_ONCE(ch->mode == MODE_UNKNOWN))
+				continue;
+
+			ath10k_dbg(ATH10K_DBG_WMI,
+				   "%s: [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
+				   __func__, ch - arg.channels, arg.n_channels,
+				   ch->freq, ch->max_power, ch->max_reg_power,
+				   ch->max_antenna_gain, ch->mode);
+
+			ch++;
+		}
+	}
+
+	ret = ath10k_wmi_scan_chan_list(ar, &arg);
+	kfree(arg.channels);
+
+	return ret;
+}
+
+static void ath10k_reg_notifier(struct wiphy *wiphy,
+				struct regulatory_request *request)
+{
+	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
+	struct reg_dmn_pair_mapping *regpair;
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	ath_reg_notifier_apply(wiphy, request, &ar->ath_common.regulatory);
+
+	ret = ath10k_update_channel_list(ar);
+	if (ret)
+		ath10k_warn("could not update channel list (%d)\n", ret);
+
+	regpair = ar->ath_common.regulatory.regpair;
+	/* Target allows setting up per-band regdomain but ath_common provides
+	 * a combined one only */
+	ret = ath10k_wmi_pdev_set_regdomain(ar,
+					    regpair->regDmnEnum,
+					    regpair->regDmnEnum, /* 2ghz */
+					    regpair->regDmnEnum, /* 5ghz */
+					    regpair->reg_2ghz_ctl,
+					    regpair->reg_5ghz_ctl);
+	if (ret)
+		ath10k_warn("could not set pdev regdomain (%d)\n", ret);
+}
+
+/***************/
+/* TX handlers */
+/***************/
+
+/*
+ * Frames sent to the FW have to be in "Native Wifi" format.
+ * Strip the QoS field from the 802.11 header.
+ */
+static void ath10k_tx_h_qos_workaround(struct ieee80211_hw *hw,
+				       struct ieee80211_tx_control *control,
+				       struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (void *)skb->data;
+	u8 *qos_ctl;
+
+	if (!ieee80211_is_data_qos(hdr->frame_control))
+		return;
+
+	qos_ctl = ieee80211_get_qos_ctl(hdr);
+	memmove(qos_ctl, qos_ctl + IEEE80211_QOS_CTL_LEN,
+		skb->len - ieee80211_hdrlen(hdr->frame_control));
+	skb_trim(skb, skb->len - IEEE80211_QOS_CTL_LEN);
+}
+
+static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ath10k *ar = arvif->ar;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ieee80211_key_conf *key = info->control.hw_key;
+	int ret;
+
+	/* TODO AP mode should be implemented */
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return;
+
+	if (!ieee80211_has_protected(hdr->frame_control))
+		return;
+
+	if (!key)
+		return;
+
+	if (key->cipher != WLAN_CIPHER_SUITE_WEP40 &&
+	    key->cipher != WLAN_CIPHER_SUITE_WEP104)
+		return;
+
+	if (key->keyidx == arvif->def_wep_key_index)
+		return;
+
+	ath10k_dbg(ATH10K_DBG_MAC, "new wep keyidx will be %d\n", key->keyidx);
+
+	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+					WMI_VDEV_PARAM_DEF_KEYID,
+					key->keyidx);
+	if (ret) {
+		ath10k_warn("could not update wep keyidx (%d)\n", ret);
+		return;
+	}
+
+	arvif->def_wep_key_index = key->keyidx;
+}
+
+static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+
+	/* This is case only for P2P_GO */
+	if (arvif->vdev_type != WMI_VDEV_TYPE_AP ||
+	    arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
+		return;
+
+	if (unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
+		spin_lock_bh(&ar->data_lock);
+		if (arvif->u.ap.noa_data)
+			if (!pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
+					      GFP_ATOMIC))
+				memcpy(skb_put(skb, arvif->u.ap.noa_len),
+				       arvif->u.ap.noa_data,
+				       arvif->u.ap.noa_len);
+		spin_unlock_bh(&ar->data_lock);
+	}
+}
+
+static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	int ret;
+
+	if (ieee80211_is_mgmt(hdr->frame_control))
+		ret = ath10k_htt_mgmt_tx(ar->htt, skb);
+	else if (ieee80211_is_nullfunc(hdr->frame_control))
+		/* FW does not report tx status properly for NullFunc frames
+		 * unless they are sent through mgmt tx path. mac80211 sends
+		 * those frames when it detects link/beacon loss and depends on
+		 * the tx status to be correct. */
+		ret = ath10k_htt_mgmt_tx(ar->htt, skb);
+	else
+		ret = ath10k_htt_tx(ar->htt, skb);
+
+	if (ret) {
+		ath10k_warn("tx failed (%d). dropping packet.\n", ret);
+		ieee80211_free_txskb(ar->hw, skb);
+	}
+}
+
+void ath10k_offchan_tx_purge(struct ath10k *ar)
+{
+	struct sk_buff *skb;
+
+	for (;;) {
+		skb = skb_dequeue(&ar->offchan_tx_queue);
+		if (!skb)
+			break;
+
+		ieee80211_free_txskb(ar->hw, skb);
+	}
+}
+
+void ath10k_offchan_tx_work(struct work_struct *work)
+{
+	struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work);
+	struct ath10k_peer *peer;
+	struct ieee80211_hdr *hdr;
+	struct sk_buff *skb;
+	const u8 *peer_addr;
+	int vdev_id;
+	int ret;
+
+	/* FW requirement: We must create a peer before FW will send out
+	 * an offchannel frame. Otherwise the frame will be stuck and
+	 * never transmitted. We delete the peer upon tx completion.
+	 * It is unlikely that a peer for offchannel tx will already be
+	 * present. However it may be in some rare cases so account for that.
+	 * Otherwise we might remove a legitimate peer and break stuff. */
+
+	for (;;) {
+		skb = skb_dequeue(&ar->offchan_tx_queue);
+		if (!skb)
+			break;
+
+		mutex_lock(&ar->conf_mutex);
+
+		ath10k_dbg(ATH10K_DBG_MAC, "processing offchannel skb %p\n",
+			   skb);
+
+		hdr = (struct ieee80211_hdr *)skb->data;
+		peer_addr = ieee80211_get_DA(hdr);
+		vdev_id = ATH10K_SKB_CB(skb)->htt.vdev_id;
+
+		spin_lock_bh(&ar->data_lock);
+		peer = ath10k_peer_find(ar, vdev_id, peer_addr);
+		spin_unlock_bh(&ar->data_lock);
+
+		if (peer)
+			ath10k_dbg(ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
+				   peer_addr, vdev_id);
+
+		if (!peer) {
+			ret = ath10k_peer_create(ar, vdev_id, peer_addr);
+			if (ret)
+				ath10k_warn("peer %pM on vdev %d not created (%d)\n",
+					    peer_addr, vdev_id, ret);
+		}
+
+		spin_lock_bh(&ar->data_lock);
+		INIT_COMPLETION(ar->offchan_tx_completed);
+		ar->offchan_tx_skb = skb;
+		spin_unlock_bh(&ar->data_lock);
+
+		ath10k_tx_htt(ar, skb);
+
+		ret = wait_for_completion_timeout(&ar->offchan_tx_completed,
+						  3 * HZ);
+		if (ret <= 0)
+			ath10k_warn("timed out waiting for offchannel skb %p\n",
+				    skb);
+
+		if (!peer) {
+			ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
+			if (ret)
+				ath10k_warn("peer %pM on vdev %d not deleted (%d)\n",
+					    peer_addr, vdev_id, ret);
+		}
+
+		mutex_unlock(&ar->conf_mutex);
+	}
+}
+
+/************/
+/* Scanning */
+/************/
+
+/*
+ * This gets called if we dont get a heart-beat during scan.
+ * This may indicate the FW has hung and we need to abort the
+ * scan manually to prevent cancel_hw_scan() from deadlocking
+ */
+void ath10k_reset_scan(unsigned long ptr)
+{
+	struct ath10k *ar = (struct ath10k *)ptr;
+
+	spin_lock_bh(&ar->data_lock);
+	if (!ar->scan.in_progress) {
+		spin_unlock_bh(&ar->data_lock);
+		return;
+	}
+
+	ath10k_warn("scan timeout. resetting. fw issue?\n");
+
+	if (ar->scan.is_roc)
+		ieee80211_remain_on_channel_expired(ar->hw);
+	else
+		ieee80211_scan_completed(ar->hw, 1 /* aborted */);
+
+	ar->scan.in_progress = false;
+	complete_all(&ar->scan.completed);
+	spin_unlock_bh(&ar->data_lock);
+}
+
+static int ath10k_abort_scan(struct ath10k *ar)
+{
+	struct wmi_stop_scan_arg arg = {
+		.req_id = 1, /* FIXME */
+		.req_type = WMI_SCAN_STOP_ONE,
+		.u.scan_id = ATH10K_SCAN_ID,
+	};
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	del_timer_sync(&ar->scan.timeout);
+
+	spin_lock_bh(&ar->data_lock);
+	if (!ar->scan.in_progress) {
+		spin_unlock_bh(&ar->data_lock);
+		return 0;
+	}
+
+	ar->scan.aborting = true;
+	spin_unlock_bh(&ar->data_lock);
+
+	ret = ath10k_wmi_stop_scan(ar, &arg);
+	if (ret) {
+		ath10k_warn("could not submit wmi stop scan (%d)\n", ret);
+		return -EIO;
+	}
+
+	ath10k_wmi_flush_tx(ar);
+
+	ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
+	if (ret == 0)
+		ath10k_warn("timed out while waiting for scan to stop\n");
+
+	/* scan completion may be done right after we timeout here, so let's
+	 * check the in_progress and tell mac80211 scan is completed. if we
+	 * don't do that and FW fails to send us scan completion indication
+	 * then userspace won't be able to scan anymore */
+	ret = 0;
+
+	spin_lock_bh(&ar->data_lock);
+	if (ar->scan.in_progress) {
+		ath10k_warn("could not stop scan. its still in progress\n");
+		ar->scan.in_progress = false;
+		ath10k_offchan_tx_purge(ar);
+		ret = -ETIMEDOUT;
+	}
+	spin_unlock_bh(&ar->data_lock);
+
+	return ret;
+}
+
+static int ath10k_start_scan(struct ath10k *ar,
+			     const struct wmi_start_scan_arg *arg)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	ret = ath10k_wmi_start_scan(ar, arg);
+	if (ret)
+		return ret;
+
+	/* make sure we submit the command so the completion
+	* timeout makes sense */
+	ath10k_wmi_flush_tx(ar);
+
+	ret = wait_for_completion_timeout(&ar->scan.started, 1*HZ);
+	if (ret == 0) {
+		ath10k_abort_scan(ar);
+		return ret;
+	}
+
+	/* the scan can complete earlier, before we even
+	 * start the timer. in that case the timer handler
+	 * checks ar->scan.in_progress and bails out if its
+	 * false. Add a 200ms margin to account event/command
+	 * processing. */
+	mod_timer(&ar->scan.timeout, jiffies +
+		  msecs_to_jiffies(arg->max_scan_time+200));
+	return 0;
+}
+
+/**********************/
+/* mac80211 callbacks */
+/**********************/
+
+static void ath10k_tx(struct ieee80211_hw *hw,
+		      struct ieee80211_tx_control *control,
+		      struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = NULL;
+	u32 vdev_id = 0;
+	u8 tid;
+
+	if (info->control.vif) {
+		arvif = ath10k_vif_to_arvif(info->control.vif);
+		vdev_id = arvif->vdev_id;
+	} else if (ar->monitor_enabled) {
+		vdev_id = ar->monitor_vdev_id;
+	}
+
+	/* We should disable CCK RATE due to P2P */
+	if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
+		ath10k_dbg(ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
+
+	/* we must calculate tid before we apply qos workaround
+	 * as we'd lose the qos control field */
+	tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
+	if (ieee80211_is_data_qos(hdr->frame_control) &&
+	    is_unicast_ether_addr(ieee80211_get_DA(hdr))) {
+		u8 *qc = ieee80211_get_qos_ctl(hdr);
+		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+	}
+
+	ath10k_tx_h_qos_workaround(hw, control, skb);
+	ath10k_tx_h_update_wep_key(skb);
+	ath10k_tx_h_add_p2p_noa_ie(ar, skb);
+	ath10k_tx_h_seq_no(skb);
+
+	memset(ATH10K_SKB_CB(skb), 0, sizeof(*ATH10K_SKB_CB(skb)));
+	ATH10K_SKB_CB(skb)->htt.vdev_id = vdev_id;
+	ATH10K_SKB_CB(skb)->htt.tid = tid;
+
+	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
+		spin_lock_bh(&ar->data_lock);
+		ATH10K_SKB_CB(skb)->htt.is_offchan = true;
+		ATH10K_SKB_CB(skb)->htt.vdev_id = ar->scan.vdev_id;
+		spin_unlock_bh(&ar->data_lock);
+
+		ath10k_dbg(ATH10K_DBG_MAC, "queued offchannel skb %p\n", skb);
+
+		skb_queue_tail(&ar->offchan_tx_queue, skb);
+		ieee80211_queue_work(hw, &ar->offchan_tx_work);
+		return;
+	}
+
+	ath10k_tx_htt(ar, skb);
+}
+
+/*
+ * Initialize various parameters with default vaules.
+ */
+static int ath10k_start(struct ieee80211_hw *hw)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	ret = ath10k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_PMF_QOS, 1);
+	if (ret)
+		ath10k_warn("could not enable WMI_PDEV_PARAM_PMF_QOS (%d)\n",
+			    ret);
+
+	ret = ath10k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_DYNAMIC_BW, 0);
+	if (ret)
+		ath10k_warn("could not init WMI_PDEV_PARAM_DYNAMIC_BW (%d)\n",
+			    ret);
+
+	return 0;
+}
+
+static void ath10k_stop(struct ieee80211_hw *hw)
+{
+	struct ath10k *ar = hw->priv;
+
+	/* avoid leaks in case FW never confirms scan for offchannel */
+	cancel_work_sync(&ar->offchan_tx_work);
+	ath10k_offchan_tx_purge(ar);
+}
+
+static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct ath10k_generic_iter ar_iter;
+	struct ath10k *ar = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+	int ret = 0;
+	u32 flags;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+		ath10k_dbg(ATH10K_DBG_MAC, "Config channel %d mhz\n",
+			   conf->chandef.chan->center_freq);
+		spin_lock_bh(&ar->data_lock);
+		ar->rx_channel = conf->chandef.chan;
+		spin_unlock_bh(&ar->data_lock);
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_PS) {
+		memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
+		ar_iter.ar = ar;
+		flags = IEEE80211_IFACE_ITER_RESUME_ALL;
+
+		ieee80211_iterate_active_interfaces_atomic(hw,
+							   flags,
+							   ath10k_ps_iter,
+							   &ar_iter);
+
+		ret = ar_iter.ret;
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
+		if (conf->flags & IEEE80211_CONF_MONITOR)
+			ret = ath10k_monitor_create(ar);
+		else
+			ret = ath10k_monitor_destroy(ar);
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+/*
+ * TODO:
+ * Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
+ * because we will send mgmt frames without CCK. This requirement
+ * for P2P_FIND/GO_NEG should be handled by checking CCK flag
+ * in the TX packet.
+ */
+static int ath10k_add_interface(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	enum wmi_sta_powersave_param param;
+	int ret = 0;
+	u32 value;
+	int bit;
+
+	mutex_lock(&ar->conf_mutex);
+
+	arvif->ar = ar;
+	arvif->vif = vif;
+
+	if ((vif->type == NL80211_IFTYPE_MONITOR) && ar->monitor_present) {
+		ath10k_warn("Only one monitor interface allowed\n");
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	bit = ffs(ar->free_vdev_map);
+	if (bit == 0) {
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	arvif->vdev_id = bit - 1;
+	arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;
+	ar->free_vdev_map &= ~(1 << arvif->vdev_id);
+
+	if (ar->p2p)
+		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_UNSPECIFIED:
+	case NL80211_IFTYPE_STATION:
+		arvif->vdev_type = WMI_VDEV_TYPE_STA;
+		if (vif->p2p)
+			arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_CLIENT;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
+		break;
+	case NL80211_IFTYPE_AP:
+		arvif->vdev_type = WMI_VDEV_TYPE_AP;
+
+		if (vif->p2p)
+			arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_GO;
+		break;
+	case NL80211_IFTYPE_MONITOR:
+		arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
+		break;
+	default:
+		WARN_ON(1);
+		break;
+	}
+
+	ath10k_dbg(ATH10K_DBG_MAC, "Add interface: id %d type %d subtype %d\n",
+		   arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype);
+
+	ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
+				     arvif->vdev_subtype, vif->addr);
+	if (ret) {
+		ath10k_warn("WMI vdev create failed: ret %d\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_wmi_vdev_set_param(ar, 0, WMI_VDEV_PARAM_DEF_KEYID,
+					arvif->def_wep_key_index);
+	if (ret)
+		ath10k_warn("Failed to set default keyid: %d\n", ret);
+
+	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+					WMI_VDEV_PARAM_TX_ENCAP_TYPE,
+					ATH10K_HW_TXRX_NATIVE_WIFI);
+	if (ret)
+		ath10k_warn("Failed to set TX encap: %d\n", ret);
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
+		ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr);
+		if (ret) {
+			ath10k_warn("Failed to create peer for AP: %d\n", ret);
+			goto exit;
+		}
+	}
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
+		param = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
+		value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
+		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+						  param, value);
+		if (ret)
+			ath10k_warn("Failed to set RX wake policy: %d\n", ret);
+
+		param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
+		value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
+		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+						  param, value);
+		if (ret)
+			ath10k_warn("Failed to set TX wake thresh: %d\n", ret);
+
+		param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
+		value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
+		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+						  param, value);
+		if (ret)
+			ath10k_warn("Failed to set PSPOLL count: %d\n", ret);
+	}
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
+		ar->monitor_present = true;
+
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static void ath10k_remove_interface(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	ath10k_dbg(ATH10K_DBG_MAC, "Remove interface: id %d\n", arvif->vdev_id);
+
+	ar->free_vdev_map |= 1 << (arvif->vdev_id);
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
+		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
+		if (ret)
+			ath10k_warn("Failed to remove peer for AP: %d\n", ret);
+
+		kfree(arvif->u.ap.noa_data);
+	}
+
+	ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
+	if (ret)
+		ath10k_warn("WMI vdev delete failed: %d\n", ret);
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
+		ar->monitor_present = false;
+
+	ath10k_peer_cleanup(ar, arvif->vdev_id);
+
+	mutex_unlock(&ar->conf_mutex);
+}
+
+/*
+ * FIXME: Has to be verified.
+ */
+#define SUPPORTED_FILTERS			\
+	(FIF_PROMISC_IN_BSS |			\
+	FIF_ALLMULTI |				\
+	FIF_CONTROL |				\
+	FIF_PSPOLL |				\
+	FIF_OTHER_BSS |				\
+	FIF_BCN_PRBRESP_PROMISC |		\
+	FIF_PROBE_REQ |				\
+	FIF_FCSFAIL)
+
+static void ath10k_configure_filter(struct ieee80211_hw *hw,
+				    unsigned int changed_flags,
+				    unsigned int *total_flags,
+				    u64 multicast)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	changed_flags &= SUPPORTED_FILTERS;
+	*total_flags &= SUPPORTED_FILTERS;
+	ar->filter_flags = *total_flags;
+
+	if ((ar->filter_flags & FIF_PROMISC_IN_BSS) &&
+	    !ar->monitor_enabled) {
+		ret = ath10k_monitor_start(ar, ar->monitor_vdev_id);
+		if (ret)
+			ath10k_warn("Unable to start monitor mode\n");
+		else
+			ath10k_dbg(ATH10K_DBG_MAC, "Monitor mode started\n");
+	} else if (!(ar->filter_flags & FIF_PROMISC_IN_BSS) &&
+		   ar->monitor_enabled) {
+		ret = ath10k_monitor_stop(ar);
+		if (ret)
+			ath10k_warn("Unable to stop monitor mode\n");
+		else
+			ath10k_dbg(ATH10K_DBG_MAC, "Monitor mode stopped\n");
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+}
+
+static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif,
+				    struct ieee80211_bss_conf *info,
+				    u32 changed)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	int ret = 0;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (changed & BSS_CHANGED_IBSS)
+		ath10k_control_ibss(arvif, info, vif->addr);
+
+	if (changed & BSS_CHANGED_BEACON_INT) {
+		arvif->beacon_interval = info->beacon_int;
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_BEACON_INTERVAL,
+						arvif->beacon_interval);
+		if (ret)
+			ath10k_warn("Failed to set beacon interval for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Beacon interval: %d set for VDEV: %d\n",
+				   arvif->beacon_interval, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_BEACON) {
+		ret = ath10k_wmi_pdev_set_param(ar,
+						WMI_PDEV_PARAM_BEACON_TX_MODE,
+						WMI_BEACON_STAGGERED_MODE);
+		if (ret)
+			ath10k_warn("Failed to set beacon mode for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set staggered beacon mode for VDEV: %d\n",
+				   arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_DTIM_PERIOD) {
+		arvif->dtim_period = info->dtim_period;
+
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_DTIM_PERIOD,
+						arvif->dtim_period);
+		if (ret)
+			ath10k_warn("Failed to set dtim period for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set dtim period: %d for VDEV: %d\n",
+				   arvif->dtim_period, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_SSID &&
+	    vif->type == NL80211_IFTYPE_AP) {
+		arvif->u.ap.ssid_len = info->ssid_len;
+		if (info->ssid_len)
+			memcpy(arvif->u.ap.ssid, info->ssid, info->ssid_len);
+		arvif->u.ap.hidden_ssid = info->hidden_ssid;
+	}
+
+	if (changed & BSS_CHANGED_BSSID) {
+		if (!is_zero_ether_addr(info->bssid)) {
+			ret = ath10k_peer_create(ar, arvif->vdev_id,
+						 info->bssid);
+			if (ret)
+				ath10k_warn("Failed to add peer: %pM for VDEV: %d\n",
+					    info->bssid, arvif->vdev_id);
+			else
+				ath10k_dbg(ATH10K_DBG_MAC,
+					   "Added peer: %pM for VDEV: %d\n",
+					   info->bssid, arvif->vdev_id);
+
+
+			if (vif->type == NL80211_IFTYPE_STATION) {
+				/*
+				 * this is never erased as we it for crypto key
+				 * clearing; this is FW requirement
+				 */
+				memcpy(arvif->u.sta.bssid, info->bssid,
+				       ETH_ALEN);
+
+				ret = ath10k_vdev_start(arvif);
+				if (!ret)
+					ath10k_dbg(ATH10K_DBG_MAC,
+						   "VDEV: %d started with BSSID: %pM\n",
+						   arvif->vdev_id, info->bssid);
+			}
+
+			/*
+			 * Mac80211 does not keep IBSS bssid when leaving IBSS,
+			 * so driver need to store it. It is needed when leaving
+			 * IBSS in order to remove BSSID peer.
+			 */
+			if (vif->type == NL80211_IFTYPE_ADHOC)
+				memcpy(arvif->u.ibss.bssid, info->bssid,
+				       ETH_ALEN);
+		}
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED)
+		ath10k_control_beaconing(arvif, info);
+
+	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
+		u32 cts_prot;
+		if (info->use_cts_prot)
+			cts_prot = 1;
+		else
+			cts_prot = 0;
+
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_ENABLE_RTSCTS,
+						cts_prot);
+		if (ret)
+			ath10k_warn("Failed to set CTS prot for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set CTS prot: %d for VDEV: %d\n",
+				   cts_prot, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_ERP_SLOT) {
+		u32 slottime;
+		if (info->use_short_slot)
+			slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */
+
+		else
+			slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
+
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_SLOT_TIME,
+						slottime);
+		if (ret)
+			ath10k_warn("Failed to set erp slot for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set slottime: %d for VDEV: %d\n",
+				   slottime, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
+		u32 preamble;
+		if (info->use_short_preamble)
+			preamble = WMI_VDEV_PREAMBLE_SHORT;
+		else
+			preamble = WMI_VDEV_PREAMBLE_LONG;
+
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_PREAMBLE,
+						preamble);
+		if (ret)
+			ath10k_warn("Failed to set preamble for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set preamble: %d for VDEV: %d\n",
+				   preamble, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_ASSOC) {
+		if (info->assoc)
+			ath10k_bss_assoc(hw, vif, info);
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+}
+
+static int ath10k_hw_scan(struct ieee80211_hw *hw,
+			  struct ieee80211_vif *vif,
+			  struct cfg80211_scan_request *req)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct wmi_start_scan_arg arg;
+	int ret = 0;
+	int i;
+
+	mutex_lock(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	if (ar->scan.in_progress) {
+		spin_unlock_bh(&ar->data_lock);
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	INIT_COMPLETION(ar->scan.started);
+	INIT_COMPLETION(ar->scan.completed);
+	ar->scan.in_progress = true;
+	ar->scan.aborting = false;
+	ar->scan.is_roc = false;
+	ar->scan.vdev_id = arvif->vdev_id;
+	spin_unlock_bh(&ar->data_lock);
+
+	memset(&arg, 0, sizeof(arg));
+	ath10k_wmi_start_scan_init(ar, &arg);
+	arg.vdev_id = arvif->vdev_id;
+	arg.scan_id = ATH10K_SCAN_ID;
+
+	if (!req->no_cck)
+		arg.scan_ctrl_flags |= WMI_SCAN_ADD_CCK_RATES;
+
+	if (req->ie_len) {
+		arg.ie_len = req->ie_len;
+		memcpy(arg.ie, req->ie, arg.ie_len);
+	}
+
+	if (req->n_ssids) {
+		arg.n_ssids = req->n_ssids;
+		for (i = 0; i < arg.n_ssids; i++) {
+			arg.ssids[i].len  = req->ssids[i].ssid_len;
+			arg.ssids[i].ssid = req->ssids[i].ssid;
+		}
+	}
+
+	if (req->n_channels) {
+		arg.n_channels = req->n_channels;
+		for (i = 0; i < arg.n_channels; i++)
+			arg.channels[i] = req->channels[i]->center_freq;
+	}
+
+	ret = ath10k_start_scan(ar, &arg);
+	if (ret) {
+		ath10k_warn("could not start hw scan (%d)\n", ret);
+		spin_lock_bh(&ar->data_lock);
+		ar->scan.in_progress = false;
+		spin_unlock_bh(&ar->data_lock);
+	}
+
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
+				  struct ieee80211_vif *vif)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+	ret = ath10k_abort_scan(ar);
+	if (ret) {
+		ath10k_warn("couldn't abort scan (%d). forcefully sending scan completion to mac80211\n",
+			    ret);
+		ieee80211_scan_completed(hw, 1 /* aborted */);
+	}
+	mutex_unlock(&ar->conf_mutex);
+}
+
+static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+			  struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+			  struct ieee80211_key_conf *key)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ath10k_peer *peer;
+	const u8 *peer_addr;
+	bool is_wep = key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
+		      key->cipher == WLAN_CIPHER_SUITE_WEP104;
+	int ret = 0;
+
+	if (key->keyidx > WMI_MAX_KEY_INDEX)
+		return -ENOSPC;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (sta)
+		peer_addr = sta->addr;
+	else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
+		peer_addr = vif->bss_conf.bssid;
+	else
+		peer_addr = vif->addr;
+
+	key->hw_key_idx = key->keyidx;
+
+	/* the peer should not disappear in mid-way (unless FW goes awry) since
+	 * we already hold conf_mutex. we just make sure its there now. */
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!peer) {
+		if (cmd == SET_KEY) {
+			ath10k_warn("cannot install key for non-existent peer %pM\n",
+				    peer_addr);
+			ret = -EOPNOTSUPP;
+			goto exit;
+		} else {
+			/* if the peer doesn't exist there is no key to disable
+			 * anymore */
+			goto exit;
+		}
+	}
+
+	if (is_wep) {
+		if (cmd == SET_KEY)
+			arvif->wep_keys[key->keyidx] = key;
+		else
+			arvif->wep_keys[key->keyidx] = NULL;
+
+		if (cmd == DISABLE_KEY)
+			ath10k_clear_vdev_key(arvif, key);
+	}
+
+	ret = ath10k_install_key(arvif, key, cmd, peer_addr);
+	if (ret) {
+		ath10k_warn("ath10k_install_key failed (%d)\n", ret);
+		goto exit;
+	}
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
+	if (peer && cmd == SET_KEY)
+		peer->keys[key->keyidx] = key;
+	else if (peer && cmd == DISABLE_KEY)
+		peer->keys[key->keyidx] = NULL;
+	else if (peer == NULL)
+		/* impossible unless FW goes crazy */
+		ath10k_warn("peer %pM disappeared!\n", peer_addr);
+	spin_unlock_bh(&ar->data_lock);
+
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static int ath10k_sta_state(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif,
+			    struct ieee80211_sta *sta,
+			    enum ieee80211_sta_state old_state,
+			    enum ieee80211_sta_state new_state)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	int ret = 0;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (old_state == IEEE80211_STA_NOTEXIST &&
+	    new_state == IEEE80211_STA_NONE &&
+	    vif->type != NL80211_IFTYPE_STATION) {
+		/*
+		 * New station addition.
+		 */
+		ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
+		if (ret)
+			ath10k_warn("Failed to add peer: %pM for VDEV: %d\n",
+				    sta->addr, arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Added peer: %pM for VDEV: %d\n",
+				   sta->addr, arvif->vdev_id);
+	} else if ((old_state == IEEE80211_STA_NONE &&
+		    new_state == IEEE80211_STA_NOTEXIST)) {
+		/*
+		 * Existing station deletion.
+		 */
+		ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
+		if (ret)
+			ath10k_warn("Failed to delete peer: %pM for VDEV: %d\n",
+				    sta->addr, arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Removed peer: %pM for VDEV: %d\n",
+				   sta->addr, arvif->vdev_id);
+
+		if (vif->type == NL80211_IFTYPE_STATION)
+			ath10k_bss_disassoc(hw, vif);
+	} else if (old_state == IEEE80211_STA_AUTH &&
+		   new_state == IEEE80211_STA_ASSOC &&
+		   (vif->type == NL80211_IFTYPE_AP ||
+		    vif->type == NL80211_IFTYPE_ADHOC)) {
+		/*
+		 * New association.
+		 */
+		ret = ath10k_station_assoc(ar, arvif, sta);
+		if (ret)
+			ath10k_warn("Failed to associate station: %pM\n",
+				    sta->addr);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Station %pM moved to assoc state\n",
+				   sta->addr);
+	} else if (old_state == IEEE80211_STA_ASSOC &&
+		   new_state == IEEE80211_STA_AUTH &&
+		   (vif->type == NL80211_IFTYPE_AP ||
+		    vif->type == NL80211_IFTYPE_ADHOC)) {
+		/*
+		 * Disassociation.
+		 */
+		ret = ath10k_station_disassoc(ar, arvif, sta);
+		if (ret)
+			ath10k_warn("Failed to disassociate station: %pM\n",
+				    sta->addr);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Station %pM moved to disassociated state\n",
+				   sta->addr);
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
+				 u16 ac, bool enable)
+{
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	u32 value = 0;
+	int ret = 0;
+
+	if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
+		return 0;
+
+	switch (ac) {
+	case IEEE80211_AC_VO:
+		value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
+			WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
+		break;
+	case IEEE80211_AC_VI:
+		value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
+			WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
+		break;
+	case IEEE80211_AC_BE:
+		value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
+			WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
+		break;
+	case IEEE80211_AC_BK:
+		value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
+			WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
+		break;
+	}
+
+	if (enable)
+		arvif->u.sta.uapsd |= value;
+	else
+		arvif->u.sta.uapsd &= ~value;
+
+	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+					  WMI_STA_PS_PARAM_UAPSD,
+					  arvif->u.sta.uapsd);
+	if (ret) {
+		ath10k_warn("could not set uapsd params %d\n", ret);
+		goto exit;
+	}
+
+	if (arvif->u.sta.uapsd)
+		value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
+	else
+		value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
+
+	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+					  WMI_STA_PS_PARAM_RX_WAKE_POLICY,
+					  value);
+	if (ret)
+		ath10k_warn("could not set rx wake param %d\n", ret);
+
+exit:
+	return ret;
+}
+
+static int ath10k_conf_tx(struct ieee80211_hw *hw,
+			  struct ieee80211_vif *vif, u16 ac,
+			  const struct ieee80211_tx_queue_params *params)
+{
+	struct ath10k *ar = hw->priv;
+	struct wmi_wmm_params_arg *p = NULL;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	switch (ac) {
+	case IEEE80211_AC_VO:
+		p = &ar->wmm_params.ac_vo;
+		break;
+	case IEEE80211_AC_VI:
+		p = &ar->wmm_params.ac_vi;
+		break;
+	case IEEE80211_AC_BE:
+		p = &ar->wmm_params.ac_be;
+		break;
+	case IEEE80211_AC_BK:
+		p = &ar->wmm_params.ac_bk;
+		break;
+	}
+
+	if (WARN_ON(!p)) {
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	p->cwmin = params->cw_min;
+	p->cwmax = params->cw_max;
+	p->aifs = params->aifs;
+
+	/*
+	 * The channel time duration programmed in the HW is in absolute
+	 * microseconds, while mac80211 gives the txop in units of
+	 * 32 microseconds.
+	 */
+	p->txop = params->txop * 32;
+
+	/* FIXME: FW accepts wmm params per hw, not per vif */
+	ret = ath10k_wmi_pdev_set_wmm_params(ar, &ar->wmm_params);
+	if (ret) {
+		ath10k_warn("could not set wmm params %d\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
+	if (ret)
+		ath10k_warn("could not set sta uapsd %d\n", ret);
+
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+#define ATH10K_ROC_TIMEOUT_HZ (2*HZ)
+
+static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif,
+				    struct ieee80211_channel *chan,
+				    int duration,
+				    enum ieee80211_roc_type type)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct wmi_start_scan_arg arg;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	if (ar->scan.in_progress) {
+		spin_unlock_bh(&ar->data_lock);
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	INIT_COMPLETION(ar->scan.started);
+	INIT_COMPLETION(ar->scan.completed);
+	INIT_COMPLETION(ar->scan.on_channel);
+	ar->scan.in_progress = true;
+	ar->scan.aborting = false;
+	ar->scan.is_roc = true;
+	ar->scan.vdev_id = arvif->vdev_id;
+	ar->scan.roc_freq = chan->center_freq;
+	spin_unlock_bh(&ar->data_lock);
+
+	memset(&arg, 0, sizeof(arg));
+	ath10k_wmi_start_scan_init(ar, &arg);
+	arg.vdev_id = arvif->vdev_id;
+	arg.scan_id = ATH10K_SCAN_ID;
+	arg.n_channels = 1;
+	arg.channels[0] = chan->center_freq;
+	arg.dwell_time_active = duration;
+	arg.dwell_time_passive = duration;
+	arg.max_scan_time = 2 * duration;
+	arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
+	arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
+
+	ret = ath10k_start_scan(ar, &arg);
+	if (ret) {
+		ath10k_warn("could not start roc scan (%d)\n", ret);
+		spin_lock_bh(&ar->data_lock);
+		ar->scan.in_progress = false;
+		spin_unlock_bh(&ar->data_lock);
+		goto exit;
+	}
+
+	ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
+	if (ret == 0) {
+		ath10k_warn("could not switch to channel for roc scan\n");
+		ath10k_abort_scan(ar);
+		ret = -ETIMEDOUT;
+		goto exit;
+	}
+
+	ret = 0;
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw)
+{
+	struct ath10k *ar = hw->priv;
+
+	mutex_lock(&ar->conf_mutex);
+	ath10k_abort_scan(ar);
+	mutex_unlock(&ar->conf_mutex);
+
+	return 0;
+}
+
+/*
+ * Both RTS and Fragmentation threshold are interface-specific
+ * in ath10k, but device-specific in mac80211.
+ */
+static void ath10k_set_rts_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct ath10k_generic_iter *ar_iter = data;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	u32 rts = ar_iter->ar->hw->wiphy->rts_threshold;
+
+	rts = min_t(u32, rts, ATH10K_RTS_MAX);
+
+	ar_iter->ret = ath10k_wmi_vdev_set_param(ar_iter->ar, arvif->vdev_id,
+						 WMI_VDEV_PARAM_RTS_THRESHOLD,
+						 rts);
+	if (ar_iter->ret)
+		ath10k_warn("Failed to set RTS threshold for VDEV: %d\n",
+			    arvif->vdev_id);
+	else
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "Set RTS threshold: %d for VDEV: %d\n",
+			   rts, arvif->vdev_id);
+}
+
+static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct ath10k_generic_iter ar_iter;
+	struct ath10k *ar = hw->priv;
+
+	memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
+	ar_iter.ar = ar;
+
+	mutex_lock(&ar->conf_mutex);
+	ieee80211_iterate_active_interfaces(hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+					    ath10k_set_rts_iter, &ar_iter);
+	mutex_unlock(&ar->conf_mutex);
+
+	return ar_iter.ret;
+}
+
+static void ath10k_set_frag_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct ath10k_generic_iter *ar_iter = data;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	u32 frag = ar_iter->ar->hw->wiphy->frag_threshold;
+	int ret;
+
+	frag = clamp_t(u32, frag,
+		       ATH10K_FRAGMT_THRESHOLD_MIN,
+		       ATH10K_FRAGMT_THRESHOLD_MAX);
+
+	ret = ath10k_wmi_vdev_set_param(ar_iter->ar, arvif->vdev_id,
+					WMI_VDEV_PARAM_FRAGMENTATION_THRESHOLD,
+					frag);
+
+	ar_iter->ret = ret;
+	if (ar_iter->ret)
+		ath10k_warn("Failed to set frag threshold for VDEV: %d\n",
+			    arvif->vdev_id);
+	else
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "Set frag threshold: %d for VDEV: %d\n",
+			   frag, arvif->vdev_id);
+}
+
+static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct ath10k_generic_iter ar_iter;
+	struct ath10k *ar = hw->priv;
+
+	memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
+	ar_iter.ar = ar;
+
+	mutex_lock(&ar->conf_mutex);
+	ieee80211_iterate_active_interfaces(hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+					    ath10k_set_frag_iter, &ar_iter);
+	mutex_unlock(&ar->conf_mutex);
+
+	return ar_iter.ret;
+}
+
+static void ath10k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	/* mac80211 doesn't care if we really xmit queued frames or not
+	 * we'll collect those frames either way if we stop/delete vdevs */
+	if (drop)
+		return;
+
+	ret = wait_event_timeout(ar->htt->empty_tx_wq, ({
+			bool empty;
+			spin_lock_bh(&ar->htt->tx_lock);
+			empty = bitmap_empty(ar->htt->used_msdu_ids,
+					     ar->htt->max_num_pending_tx);
+			spin_unlock_bh(&ar->htt->tx_lock);
+			(empty);
+		}), ATH10K_FLUSH_TIMEOUT_HZ);
+	if (ret <= 0)
+		ath10k_warn("tx not flushed\n");
+}
+
+/* TODO: Implement this function properly
+ * For now it is needed to reply to Probe Requests in IBSS mode.
+ * Propably we need this information from FW.
+ */
+static int ath10k_tx_last_beacon(struct ieee80211_hw *hw)
+{
+	return 1;
+}
+
+static const struct ieee80211_ops ath10k_ops = {
+	.tx				= ath10k_tx,
+	.start				= ath10k_start,
+	.stop				= ath10k_stop,
+	.config				= ath10k_config,
+	.add_interface			= ath10k_add_interface,
+	.remove_interface		= ath10k_remove_interface,
+	.configure_filter		= ath10k_configure_filter,
+	.bss_info_changed		= ath10k_bss_info_changed,
+	.hw_scan			= ath10k_hw_scan,
+	.cancel_hw_scan			= ath10k_cancel_hw_scan,
+	.set_key			= ath10k_set_key,
+	.sta_state			= ath10k_sta_state,
+	.conf_tx			= ath10k_conf_tx,
+	.remain_on_channel		= ath10k_remain_on_channel,
+	.cancel_remain_on_channel	= ath10k_cancel_remain_on_channel,
+	.set_rts_threshold		= ath10k_set_rts_threshold,
+	.set_frag_threshold		= ath10k_set_frag_threshold,
+	.flush				= ath10k_flush,
+	.tx_last_beacon			= ath10k_tx_last_beacon,
+};
+
+#define RATETAB_ENT(_rate, _rateid, _flags) { \
+	.bitrate		= (_rate), \
+	.flags			= (_flags), \
+	.hw_value		= (_rateid), \
+}
+
+#define CHAN2G(_channel, _freq, _flags) { \
+	.band			= IEEE80211_BAND_2GHZ, \
+	.hw_value		= (_channel), \
+	.center_freq		= (_freq), \
+	.flags			= (_flags), \
+	.max_antenna_gain	= 0, \
+	.max_power		= 30, \
+}
+
+#define CHAN5G(_channel, _freq, _flags) { \
+	.band			= IEEE80211_BAND_5GHZ, \
+	.hw_value		= (_channel), \
+	.center_freq		= (_freq), \
+	.flags			= (_flags), \
+	.max_antenna_gain	= 0, \
+	.max_power		= 30, \
+}
+
+static const struct ieee80211_channel ath10k_2ghz_channels[] = {
+	CHAN2G(1, 2412, 0),
+	CHAN2G(2, 2417, 0),
+	CHAN2G(3, 2422, 0),
+	CHAN2G(4, 2427, 0),
+	CHAN2G(5, 2432, 0),
+	CHAN2G(6, 2437, 0),
+	CHAN2G(7, 2442, 0),
+	CHAN2G(8, 2447, 0),
+	CHAN2G(9, 2452, 0),
+	CHAN2G(10, 2457, 0),
+	CHAN2G(11, 2462, 0),
+	CHAN2G(12, 2467, 0),
+	CHAN2G(13, 2472, 0),
+	CHAN2G(14, 2484, 0),
+};
+
+static const struct ieee80211_channel ath10k_5ghz_channels[] = {
+	CHAN5G(36, 5180, 14),
+	CHAN5G(40, 5200, 15),
+	CHAN5G(44, 5220, 16),
+	CHAN5G(48, 5240, 17),
+	CHAN5G(52, 5260, 18),
+	CHAN5G(56, 5280, 19),
+	CHAN5G(60, 5300, 20),
+	CHAN5G(64, 5320, 21),
+	CHAN5G(100, 5500, 22),
+	CHAN5G(104, 5520, 23),
+	CHAN5G(108, 5540, 24),
+	CHAN5G(112, 5560, 25),
+	CHAN5G(116, 5580, 26),
+	CHAN5G(120, 5600, 27),
+	CHAN5G(124, 5620, 28),
+	CHAN5G(128, 5640, 29),
+	CHAN5G(132, 5660, 30),
+	CHAN5G(136, 5680, 31),
+	CHAN5G(140, 5700, 32),
+	CHAN5G(149, 5745, 33),
+	CHAN5G(153, 5765, 34),
+	CHAN5G(157, 5785, 35),
+	CHAN5G(161, 5805, 36),
+	CHAN5G(165, 5825, 37),
+};
+
+static struct ieee80211_rate ath10k_rates[] = {
+	/* CCK */
+	RATETAB_ENT(10,  0x82, 0),
+	RATETAB_ENT(20,  0x84, 0),
+	RATETAB_ENT(55,  0x8b, 0),
+	RATETAB_ENT(110, 0x96, 0),
+	/* OFDM */
+	RATETAB_ENT(60,  0x0c, 0),
+	RATETAB_ENT(90,  0x12, 0),
+	RATETAB_ENT(120, 0x18, 0),
+	RATETAB_ENT(180, 0x24, 0),
+	RATETAB_ENT(240, 0x30, 0),
+	RATETAB_ENT(360, 0x48, 0),
+	RATETAB_ENT(480, 0x60, 0),
+	RATETAB_ENT(540, 0x6c, 0),
+};
+
+#define ath10k_a_rates (ath10k_rates + 4)
+#define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - 4)
+#define ath10k_g_rates (ath10k_rates + 0)
+#define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))
+
+struct ath10k *ath10k_mac_create(void)
+{
+	struct ieee80211_hw *hw;
+	struct ath10k *ar;
+
+	hw = ieee80211_alloc_hw(sizeof(struct ath10k), &ath10k_ops);
+	if (!hw)
+		return NULL;
+
+	ar = hw->priv;
+	ar->hw = hw;
+
+	return ar;
+}
+
+void ath10k_mac_destroy(struct ath10k *ar)
+{
+	ieee80211_free_hw(ar->hw);
+}
+
+static const struct ieee80211_iface_limit ath10k_if_limits[] = {
+	{
+	.max	= 8,
+	.types	= BIT(NL80211_IFTYPE_STATION)
+		| BIT(NL80211_IFTYPE_P2P_CLIENT)
+		| BIT(NL80211_IFTYPE_P2P_GO)
+		| BIT(NL80211_IFTYPE_AP)
+	}
+};
+
+static const struct ieee80211_iface_combination ath10k_if_comb = {
+	.limits = ath10k_if_limits,
+	.n_limits = ARRAY_SIZE(ath10k_if_limits),
+	.max_interfaces = 8,
+	.num_different_channels = 1,
+	.beacon_int_infra_match = true,
+};
+
+static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
+{
+	struct ieee80211_sta_vht_cap vht_cap = {0};
+	u16 mcs_map;
+
+	vht_cap.vht_supported = 1;
+	vht_cap.cap = ar->vht_cap_info;
+
+	/* FIXME: check dynamically how many streams board supports */
+	mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
+		IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
+		IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
+
+	vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
+	vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
+
+	return vht_cap;
+}
+
+static struct ieee80211_sta_ht_cap ath10k_get_ht_cap(struct ath10k *ar)
+{
+	int i;
+	struct ieee80211_sta_ht_cap ht_cap = {0};
+
+	if (!(ar->ht_cap_info & WMI_HT_CAP_ENABLED))
+		return ht_cap;
+
+	ht_cap.ht_supported = 1;
+	ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
+	ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
+	ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+	ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
+	ht_cap.cap |= WLAN_HT_CAP_SM_PS_STATIC << IEEE80211_HT_CAP_SM_PS_SHIFT;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_HT20_SGI)
+		ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_HT40_SGI)
+		ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS) {
+		u32 smps;
+
+		smps   = WLAN_HT_CAP_SM_PS_DYNAMIC;
+		smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
+
+		ht_cap.cap |= smps;
+	}
+
+	if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC)
+		ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_RX_STBC) {
+		u32 stbc;
+
+		stbc   = ar->ht_cap_info;
+		stbc  &= WMI_HT_CAP_RX_STBC;
+		stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
+		stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
+		stbc  &= IEEE80211_HT_CAP_RX_STBC;
+
+		ht_cap.cap |= stbc;
+	}
+
+	if (ar->ht_cap_info & WMI_HT_CAP_LDPC)
+		ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_L_SIG_TXOP_PROT)
+		ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;
+
+	/* max AMSDU is implicitly taken from vht_cap_info */
+	if (ar->vht_cap_info & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
+		ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
+
+	for (i = 0; i < WMI_MAX_SPATIAL_STREAM; i++)
+		ht_cap.mcs.rx_mask[i] = 0xFF;
+
+	ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
+
+	return ht_cap;
+}
+
+
+static void ath10k_get_arvif_iter(void *data, u8 *mac,
+				  struct ieee80211_vif *vif)
+{
+	struct ath10k_vif_iter *arvif_iter = data;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+
+	if (arvif->vdev_id == arvif_iter->vdev_id)
+		arvif_iter->arvif = arvif;
+}
+
+struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id)
+{
+	struct ath10k_vif_iter arvif_iter;
+	u32 flags;
+
+	memset(&arvif_iter, 0, sizeof(struct ath10k_vif_iter));
+	arvif_iter.vdev_id = vdev_id;
+
+	flags = IEEE80211_IFACE_ITER_RESUME_ALL;
+	ieee80211_iterate_active_interfaces_atomic(ar->hw,
+						   flags,
+						   ath10k_get_arvif_iter,
+						   &arvif_iter);
+	if (!arvif_iter.arvif) {
+		ath10k_warn("No VIF found for VDEV: %d\n", vdev_id);
+		return NULL;
+	}
+
+	return arvif_iter.arvif;
+}
+
+int ath10k_mac_register(struct ath10k *ar)
+{
+	struct ieee80211_supported_band *band;
+	struct ieee80211_sta_vht_cap vht_cap;
+	struct ieee80211_sta_ht_cap ht_cap;
+	void *channels;
+	int ret;
+
+	SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);
+
+	SET_IEEE80211_DEV(ar->hw, ar->dev);
+
+	ht_cap = ath10k_get_ht_cap(ar);
+	vht_cap = ath10k_create_vht_cap(ar);
+
+	if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
+		channels = kmemdup(ath10k_2ghz_channels,
+				   sizeof(ath10k_2ghz_channels),
+				   GFP_KERNEL);
+		if (!channels)
+			return -ENOMEM;
+
+		band = &ar->mac.sbands[IEEE80211_BAND_2GHZ];
+		band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
+		band->channels = channels;
+		band->n_bitrates = ath10k_g_rates_size;
+		band->bitrates = ath10k_g_rates;
+		band->ht_cap = ht_cap;
+
+		/* vht is not supported in 2.4 GHz */
+
+		ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
+	}
+
+	if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
+		channels = kmemdup(ath10k_5ghz_channels,
+				   sizeof(ath10k_5ghz_channels),
+				   GFP_KERNEL);
+		if (!channels) {
+			if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
+				band = &ar->mac.sbands[IEEE80211_BAND_2GHZ];
+				kfree(band->channels);
+			}
+			return -ENOMEM;
+		}
+
+		band = &ar->mac.sbands[IEEE80211_BAND_5GHZ];
+		band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
+		band->channels = channels;
+		band->n_bitrates = ath10k_a_rates_size;
+		band->bitrates = ath10k_a_rates;
+		band->ht_cap = ht_cap;
+		band->vht_cap = vht_cap;
+		ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
+	}
+
+	ar->hw->wiphy->interface_modes =
+		BIT(NL80211_IFTYPE_STATION) |
+		BIT(NL80211_IFTYPE_ADHOC) |
+		BIT(NL80211_IFTYPE_AP) |
+		BIT(NL80211_IFTYPE_P2P_CLIENT) |
+		BIT(NL80211_IFTYPE_P2P_GO);
+
+	ar->hw->flags = IEEE80211_HW_SIGNAL_DBM |
+			IEEE80211_HW_SUPPORTS_PS |
+			IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
+			IEEE80211_HW_SUPPORTS_UAPSD |
+			IEEE80211_HW_MFP_CAPABLE |
+			IEEE80211_HW_REPORTS_TX_ACK_STATUS |
+			IEEE80211_HW_HAS_RATE_CONTROL |
+			IEEE80211_HW_SUPPORTS_STATIC_SMPS |
+			IEEE80211_HW_WANT_MONITOR_VIF |
+			IEEE80211_HW_AP_LINK_PS;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
+		ar->hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
+		ar->hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
+		ar->hw->flags |= IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
+	}
+
+	ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
+	ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
+
+	ar->hw->vif_data_size = sizeof(struct ath10k_vif);
+
+	ar->hw->channel_change_time = 5000;
+	ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
+
+	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
+	ar->hw->wiphy->max_remain_on_channel_duration = 5000;
+
+	ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
+	/*
+	 * on LL hardware queues are managed entirely by the FW
+	 * so we only advertise to mac we can do the queues thing
+	 */
+	ar->hw->queues = 4;
+
+	ar->hw->wiphy->iface_combinations = &ath10k_if_comb;
+	ar->hw->wiphy->n_iface_combinations = 1;
+
+	ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
+			    ath10k_reg_notifier);
+	if (ret) {
+		ath10k_err("Regulatory initialization failed\n");
+		return ret;
+	}
+
+	ret = ieee80211_register_hw(ar->hw);
+	if (ret) {
+		ath10k_err("ieee80211 registration failed: %d\n", ret);
+		return ret;
+	}
+
+	if (!ath_is_world_regd(&ar->ath_common.regulatory)) {
+		ret = regulatory_hint(ar->hw->wiphy,
+				      ar->ath_common.regulatory.alpha2);
+		if (ret)
+			goto exit;
+	}
+
+	return 0;
+exit:
+	ieee80211_unregister_hw(ar->hw);
+	return ret;
+}
+
+void ath10k_mac_unregister(struct ath10k *ar)
+{
+	ieee80211_unregister_hw(ar->hw);
+
+	kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
+	kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
+
+	SET_IEEE80211_DEV(ar->hw, NULL);
+}
diff --git a/drivers/net/wireless/ath/ath10k/mac.h b/drivers/net/wireless/ath/ath10k/mac.h
new file mode 100644
index 0000000..27fc92e
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/mac.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _MAC_H_
+#define _MAC_H_
+
+#include <net/mac80211.h>
+#include "core.h"
+
+struct ath10k_generic_iter {
+	struct ath10k *ar;
+	int ret;
+};
+
+struct ath10k *ath10k_mac_create(void);
+void ath10k_mac_destroy(struct ath10k *ar);
+int ath10k_mac_register(struct ath10k *ar);
+void ath10k_mac_unregister(struct ath10k *ar);
+struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id);
+void ath10k_reset_scan(unsigned long ptr);
+void ath10k_offchan_tx_purge(struct ath10k *ar);
+void ath10k_offchan_tx_work(struct work_struct *work);
+
+static inline struct ath10k_vif *ath10k_vif_to_arvif(struct ieee80211_vif *vif)
+{
+	return (struct ath10k_vif *)vif->drv_priv;
+}
+
+static inline void ath10k_tx_h_seq_no(struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+
+	if (info->flags  & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+		if (arvif->tx_seq_no == 0)
+			arvif->tx_seq_no = 0x1000;
+
+		if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+			arvif->tx_seq_no += 0x10;
+		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+		hdr->seq_ctrl |= cpu_to_le16(arvif->tx_seq_no);
+	}
+}
+
+#endif /* _MAC_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
new file mode 100644
index 0000000..8e4e832
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -0,0 +1,2506 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+
+#include "core.h"
+#include "debug.h"
+
+#include "targaddrs.h"
+#include "bmi.h"
+
+#include "hif.h"
+#include "htc.h"
+
+#include "ce.h"
+#include "pci.h"
+
+unsigned int ath10k_target_ps;
+module_param(ath10k_target_ps, uint, 0644);
+MODULE_PARM_DESC(ath10k_target_ps, "Enable ath10k Target (SoC) PS option");
+
+#define QCA988X_1_0_DEVICE_ID	(0xabcd)
+#define QCA988X_2_0_DEVICE_ID	(0x003c)
+
+static DEFINE_PCI_DEVICE_TABLE(ath10k_pci_id_table) = {
+	{ PCI_VDEVICE(ATHEROS, QCA988X_1_0_DEVICE_ID) }, /* PCI-E QCA988X V1 */
+	{ PCI_VDEVICE(ATHEROS, QCA988X_2_0_DEVICE_ID) }, /* PCI-E QCA988X V2 */
+	{0}
+};
+
+static int ath10k_pci_diag_read_access(struct ath10k *ar, u32 address,
+				       u32 *data);
+
+static void ath10k_pci_process_ce(struct ath10k *ar);
+static int ath10k_pci_post_rx(struct ath10k *ar);
+static int ath10k_pci_post_rx_pipe(struct hif_ce_pipe_info *pipe_info,
+					     int num);
+static void ath10k_pci_rx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info);
+static void ath10k_pci_stop_ce(struct ath10k *ar);
+
+static const struct ce_attr host_ce_config_wlan[] = {
+	/* host->target HTC control and raw streams */
+	{ /* CE0 */ CE_ATTR_FLAGS, 0, 16, 256, 0, NULL,},
+	/* could be moved to share CE3 */
+	/* target->host HTT + HTC control */
+	{ /* CE1 */ CE_ATTR_FLAGS, 0, 0, 512, 512, NULL,},
+	/* target->host WMI */
+	{ /* CE2 */ CE_ATTR_FLAGS, 0, 0, 2048, 32, NULL,},
+	/* host->target WMI */
+	{ /* CE3 */ CE_ATTR_FLAGS, 0, 32, 2048, 0, NULL,},
+	/* host->target HTT */
+	{ /* CE4 */ CE_ATTR_FLAGS | CE_ATTR_DIS_INTR, 0,
+		    CE_HTT_H2T_MSG_SRC_NENTRIES, 256, 0, NULL,},
+	/* unused */
+	{ /* CE5 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,},
+	/* Target autonomous hif_memcpy */
+	{ /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,},
+	/* ce_diag, the Diagnostic Window */
+	{ /* CE7 */ CE_ATTR_FLAGS, 0, 2, DIAG_TRANSFER_LIMIT, 2, NULL,},
+};
+
+/* Target firmware's Copy Engine configuration. */
+static const struct ce_pipe_config target_ce_config_wlan[] = {
+	/* host->target HTC control and raw streams */
+	{ /* CE0 */ 0, PIPEDIR_OUT, 32, 256, CE_ATTR_FLAGS, 0,},
+	/* target->host HTT + HTC control */
+	{ /* CE1 */ 1, PIPEDIR_IN, 32, 512, CE_ATTR_FLAGS, 0,},
+	/* target->host WMI */
+	{ /* CE2 */ 2, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,},
+	/* host->target WMI */
+	{ /* CE3 */ 3, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,},
+	/* host->target HTT */
+	{ /* CE4 */ 4, PIPEDIR_OUT, 256, 256, CE_ATTR_FLAGS, 0,},
+	/* NB: 50% of src nentries, since tx has 2 frags */
+	/* unused */
+	{ /* CE5 */ 5, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,},
+	/* Reserved for target autonomous hif_memcpy */
+	{ /* CE6 */ 6, PIPEDIR_INOUT, 32, 4096, CE_ATTR_FLAGS, 0,},
+	/* CE7 used only by Host */
+};
+
+/*
+ * Diagnostic read/write access is provided for startup/config/debug usage.
+ * Caller must guarantee proper alignment, when applicable, and single user
+ * at any moment.
+ */
+static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
+				    int nbytes)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret = 0;
+	u32 buf;
+	unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
+	unsigned int id;
+	unsigned int flags;
+	struct ce_state *ce_diag;
+	/* Host buffer address in CE space */
+	u32 ce_data;
+	dma_addr_t ce_data_base = 0;
+	void *data_buf = NULL;
+	int i;
+
+	/*
+	 * This code cannot handle reads to non-memory space. Redirect to the
+	 * register read fn but preserve the multi word read capability of
+	 * this fn
+	 */
+	if (address < DRAM_BASE_ADDRESS) {
+		if (!IS_ALIGNED(address, 4) ||
+		    !IS_ALIGNED((unsigned long)data, 4))
+			return -EIO;
+
+		while ((nbytes >= 4) &&  ((ret = ath10k_pci_diag_read_access(
+					   ar, address, (u32 *)data)) == 0)) {
+			nbytes -= sizeof(u32);
+			address += sizeof(u32);
+			data += sizeof(u32);
+		}
+		return ret;
+	}
+
+	ce_diag = ar_pci->ce_diag;
+
+	/*
+	 * Allocate a temporary bounce buffer to hold caller's data
+	 * to be DMA'ed from Target. This guarantees
+	 *   1) 4-byte alignment
+	 *   2) Buffer in DMA-able space
+	 */
+	orig_nbytes = nbytes;
+	data_buf = (unsigned char *)pci_alloc_consistent(ar_pci->pdev,
+							 orig_nbytes,
+							 &ce_data_base);
+
+	if (!data_buf) {
+		ret = -ENOMEM;
+		goto done;
+	}
+	memset(data_buf, 0, orig_nbytes);
+
+	remaining_bytes = orig_nbytes;
+	ce_data = ce_data_base;
+	while (remaining_bytes) {
+		nbytes = min_t(unsigned int, remaining_bytes,
+			       DIAG_TRANSFER_LIMIT);
+
+		ret = ath10k_ce_recv_buf_enqueue(ce_diag, NULL, ce_data);
+		if (ret != 0)
+			goto done;
+
+		/* Request CE to send from Target(!) address to Host buffer */
+		/*
+		 * The address supplied by the caller is in the
+		 * Target CPU virtual address space.
+		 *
+		 * In order to use this address with the diagnostic CE,
+		 * convert it from Target CPU virtual address space
+		 * to CE address space
+		 */
+		ath10k_pci_wake(ar);
+		address = TARG_CPU_SPACE_TO_CE_SPACE(ar, ar_pci->mem,
+						     address);
+		ath10k_pci_sleep(ar);
+
+		ret = ath10k_ce_send(ce_diag, NULL, (u32)address, nbytes, 0,
+				 0);
+		if (ret)
+			goto done;
+
+		i = 0;
+		while (ath10k_ce_completed_send_next(ce_diag, NULL, &buf,
+						     &completed_nbytes,
+						     &id) != 0) {
+			mdelay(1);
+			if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
+				ret = -EBUSY;
+				goto done;
+			}
+		}
+
+		if (nbytes != completed_nbytes) {
+			ret = -EIO;
+			goto done;
+		}
+
+		if (buf != (u32) address) {
+			ret = -EIO;
+			goto done;
+		}
+
+		i = 0;
+		while (ath10k_ce_completed_recv_next(ce_diag, NULL, &buf,
+						     &completed_nbytes,
+						     &id, &flags) != 0) {
+			mdelay(1);
+
+			if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
+				ret = -EBUSY;
+				goto done;
+			}
+		}
+
+		if (nbytes != completed_nbytes) {
+			ret = -EIO;
+			goto done;
+		}
+
+		if (buf != ce_data) {
+			ret = -EIO;
+			goto done;
+		}
+
+		remaining_bytes -= nbytes;
+		address += nbytes;
+		ce_data += nbytes;
+	}
+
+done:
+	if (ret == 0) {
+		/* Copy data from allocated DMA buf to caller's buf */
+		WARN_ON_ONCE(orig_nbytes & 3);
+		for (i = 0; i < orig_nbytes / sizeof(__le32); i++) {
+			((u32 *)data)[i] =
+				__le32_to_cpu(((__le32 *)data_buf)[i]);
+		}
+	} else
+		ath10k_dbg(ATH10K_DBG_PCI, "%s failure (0x%x)\n",
+			   __func__, address);
+
+	if (data_buf)
+		pci_free_consistent(ar_pci->pdev, orig_nbytes,
+				    data_buf, ce_data_base);
+
+	return ret;
+}
+
+/* Read 4-byte aligned data from Target memory or register */
+static int ath10k_pci_diag_read_access(struct ath10k *ar, u32 address,
+				       u32 *data)
+{
+	/* Assume range doesn't cross this boundary */
+	if (address >= DRAM_BASE_ADDRESS)
+		return ath10k_pci_diag_read_mem(ar, address, data, sizeof(u32));
+
+	ath10k_pci_wake(ar);
+	*data = ath10k_pci_read32(ar, address);
+	ath10k_pci_sleep(ar);
+	return 0;
+}
+
+static int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
+				     const void *data, int nbytes)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret = 0;
+	u32 buf;
+	unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
+	unsigned int id;
+	unsigned int flags;
+	struct ce_state *ce_diag;
+	void *data_buf = NULL;
+	u32 ce_data;	/* Host buffer address in CE space */
+	dma_addr_t ce_data_base = 0;
+	int i;
+
+	ce_diag = ar_pci->ce_diag;
+
+	/*
+	 * Allocate a temporary bounce buffer to hold caller's data
+	 * to be DMA'ed to Target. This guarantees
+	 *   1) 4-byte alignment
+	 *   2) Buffer in DMA-able space
+	 */
+	orig_nbytes = nbytes;
+	data_buf = (unsigned char *)pci_alloc_consistent(ar_pci->pdev,
+							 orig_nbytes,
+							 &ce_data_base);
+	if (!data_buf) {
+		ret = -ENOMEM;
+		goto done;
+	}
+
+	/* Copy caller's data to allocated DMA buf */
+	WARN_ON_ONCE(orig_nbytes & 3);
+	for (i = 0; i < orig_nbytes / sizeof(__le32); i++)
+		((__le32 *)data_buf)[i] = __cpu_to_le32(((u32 *)data)[i]);
+
+	/*
+	 * The address supplied by the caller is in the
+	 * Target CPU virtual address space.
+	 *
+	 * In order to use this address with the diagnostic CE,
+	 * convert it from
+	 *    Target CPU virtual address space
+	 * to
+	 *    CE address space
+	 */
+	ath10k_pci_wake(ar);
+	address = TARG_CPU_SPACE_TO_CE_SPACE(ar, ar_pci->mem, address);
+	ath10k_pci_sleep(ar);
+
+	remaining_bytes = orig_nbytes;
+	ce_data = ce_data_base;
+	while (remaining_bytes) {
+		/* FIXME: check cast */
+		nbytes = min_t(int, remaining_bytes, DIAG_TRANSFER_LIMIT);
+
+		/* Set up to receive directly into Target(!) address */
+		ret = ath10k_ce_recv_buf_enqueue(ce_diag, NULL, address);
+		if (ret != 0)
+			goto done;
+
+		/*
+		 * Request CE to send caller-supplied data that
+		 * was copied to bounce buffer to Target(!) address.
+		 */
+		ret = ath10k_ce_send(ce_diag, NULL, (u32) ce_data,
+				     nbytes, 0, 0);
+		if (ret != 0)
+			goto done;
+
+		i = 0;
+		while (ath10k_ce_completed_send_next(ce_diag, NULL, &buf,
+						     &completed_nbytes,
+						     &id) != 0) {
+			mdelay(1);
+
+			if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
+				ret = -EBUSY;
+				goto done;
+			}
+		}
+
+		if (nbytes != completed_nbytes) {
+			ret = -EIO;
+			goto done;
+		}
+
+		if (buf != ce_data) {
+			ret = -EIO;
+			goto done;
+		}
+
+		i = 0;
+		while (ath10k_ce_completed_recv_next(ce_diag, NULL, &buf,
+						     &completed_nbytes,
+						     &id, &flags) != 0) {
+			mdelay(1);
+
+			if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
+				ret = -EBUSY;
+				goto done;
+			}
+		}
+
+		if (nbytes != completed_nbytes) {
+			ret = -EIO;
+			goto done;
+		}
+
+		if (buf != address) {
+			ret = -EIO;
+			goto done;
+		}
+
+		remaining_bytes -= nbytes;
+		address += nbytes;
+		ce_data += nbytes;
+	}
+
+done:
+	if (data_buf) {
+		pci_free_consistent(ar_pci->pdev, orig_nbytes, data_buf,
+				    ce_data_base);
+	}
+
+	if (ret != 0)
+		ath10k_dbg(ATH10K_DBG_PCI, "%s failure (0x%x)\n", __func__,
+			   address);
+
+	return ret;
+}
+
+/* Write 4B data to Target memory or register */
+static int ath10k_pci_diag_write_access(struct ath10k *ar, u32 address,
+					u32 data)
+{
+	/* Assume range doesn't cross this boundary */
+	if (address >= DRAM_BASE_ADDRESS)
+		return ath10k_pci_diag_write_mem(ar, address, &data,
+						 sizeof(u32));
+
+	ath10k_pci_wake(ar);
+	ath10k_pci_write32(ar, address, data);
+	ath10k_pci_sleep(ar);
+	return 0;
+}
+
+static bool ath10k_pci_target_is_awake(struct ath10k *ar)
+{
+	void __iomem *mem = ath10k_pci_priv(ar)->mem;
+	u32 val;
+	val = ioread32(mem + PCIE_LOCAL_BASE_ADDRESS +
+		       RTC_STATE_ADDRESS);
+	return (RTC_STATE_V_GET(val) == RTC_STATE_V_ON);
+}
+
+static void ath10k_pci_wait(struct ath10k *ar)
+{
+	int n = 100;
+
+	while (n-- && !ath10k_pci_target_is_awake(ar))
+		msleep(10);
+
+	if (n < 0)
+		ath10k_warn("Unable to wakeup target\n");
+}
+
+void ath10k_do_pci_wake(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	void __iomem *pci_addr = ar_pci->mem;
+	int tot_delay = 0;
+	int curr_delay = 5;
+
+	if (atomic_read(&ar_pci->keep_awake_count) == 0) {
+		/* Force AWAKE */
+		iowrite32(PCIE_SOC_WAKE_V_MASK,
+			  pci_addr + PCIE_LOCAL_BASE_ADDRESS +
+			  PCIE_SOC_WAKE_ADDRESS);
+	}
+	atomic_inc(&ar_pci->keep_awake_count);
+
+	if (ar_pci->verified_awake)
+		return;
+
+	for (;;) {
+		if (ath10k_pci_target_is_awake(ar)) {
+			ar_pci->verified_awake = true;
+			break;
+		}
+
+		if (tot_delay > PCIE_WAKE_TIMEOUT) {
+			ath10k_warn("target takes too long to wake up (awake count %d)\n",
+				    atomic_read(&ar_pci->keep_awake_count));
+			break;
+		}
+
+		udelay(curr_delay);
+		tot_delay += curr_delay;
+
+		if (curr_delay < 50)
+			curr_delay += 5;
+	}
+}
+
+void ath10k_do_pci_sleep(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	void __iomem *pci_addr = ar_pci->mem;
+
+	if (atomic_dec_and_test(&ar_pci->keep_awake_count)) {
+		/* Allow sleep */
+		ar_pci->verified_awake = false;
+		iowrite32(PCIE_SOC_WAKE_RESET,
+			  pci_addr + PCIE_LOCAL_BASE_ADDRESS +
+			  PCIE_SOC_WAKE_ADDRESS);
+	}
+}
+
+/*
+ * FIXME: Handle OOM properly.
+ */
+static inline
+struct ath10k_pci_compl *get_free_compl(struct hif_ce_pipe_info *pipe_info)
+{
+	struct ath10k_pci_compl *compl = NULL;
+
+	spin_lock_bh(&pipe_info->pipe_lock);
+	if (list_empty(&pipe_info->compl_free)) {
+		ath10k_warn("Completion buffers are full\n");
+		goto exit;
+	}
+	compl = list_first_entry(&pipe_info->compl_free,
+				 struct ath10k_pci_compl, list);
+	list_del(&compl->list);
+exit:
+	spin_unlock_bh(&pipe_info->pipe_lock);
+	return compl;
+}
+
+/* Called by lower (CE) layer when a send to Target completes. */
+static void ath10k_pci_ce_send_done(struct ce_state *ce_state,
+				    void *transfer_context,
+				    u32 ce_data,
+				    unsigned int nbytes,
+				    unsigned int transfer_id)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info =  &ar_pci->pipe_info[ce_state->id];
+	struct ath10k_pci_compl *compl;
+	bool process = false;
+
+	do {
+		/*
+		 * For the send completion of an item in sendlist, just
+		 * increment num_sends_allowed. The upper layer callback will
+		 * be triggered when last fragment is done with send.
+		 */
+		if (transfer_context == CE_SENDLIST_ITEM_CTXT) {
+			spin_lock_bh(&pipe_info->pipe_lock);
+			pipe_info->num_sends_allowed++;
+			spin_unlock_bh(&pipe_info->pipe_lock);
+			continue;
+		}
+
+		compl = get_free_compl(pipe_info);
+		if (!compl)
+			break;
+
+		compl->send_or_recv = HIF_CE_COMPLETE_SEND;
+		compl->ce_state = ce_state;
+		compl->pipe_info = pipe_info;
+		compl->transfer_context = transfer_context;
+		compl->nbytes = nbytes;
+		compl->transfer_id = transfer_id;
+		compl->flags = 0;
+
+		/*
+		 * Add the completion to the processing queue.
+		 */
+		spin_lock_bh(&ar_pci->compl_lock);
+		list_add_tail(&compl->list, &ar_pci->compl_process);
+		spin_unlock_bh(&ar_pci->compl_lock);
+
+		process = true;
+	} while (ath10k_ce_completed_send_next(ce_state,
+							   &transfer_context,
+							   &ce_data, &nbytes,
+							   &transfer_id) == 0);
+
+	/*
+	 * If only some of the items within a sendlist have completed,
+	 * don't invoke completion processing until the entire sendlist
+	 * has been sent.
+	 */
+	if (!process)
+		return;
+
+	ath10k_pci_process_ce(ar);
+}
+
+/* Called by lower (CE) layer when data is received from the Target. */
+static void ath10k_pci_ce_recv_data(struct ce_state *ce_state,
+				    void *transfer_context, u32 ce_data,
+				    unsigned int nbytes,
+				    unsigned int transfer_id,
+				    unsigned int flags)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info =  &ar_pci->pipe_info[ce_state->id];
+	struct ath10k_pci_compl *compl;
+	struct sk_buff *skb;
+
+	do {
+		compl = get_free_compl(pipe_info);
+		if (!compl)
+			break;
+
+		compl->send_or_recv = HIF_CE_COMPLETE_RECV;
+		compl->ce_state = ce_state;
+		compl->pipe_info = pipe_info;
+		compl->transfer_context = transfer_context;
+		compl->nbytes = nbytes;
+		compl->transfer_id = transfer_id;
+		compl->flags = flags;
+
+		skb = transfer_context;
+		dma_unmap_single(ar->dev, ATH10K_SKB_CB(skb)->paddr,
+				 skb->len + skb_tailroom(skb),
+				 DMA_FROM_DEVICE);
+		/*
+		 * Add the completion to the processing queue.
+		 */
+		spin_lock_bh(&ar_pci->compl_lock);
+		list_add_tail(&compl->list, &ar_pci->compl_process);
+		spin_unlock_bh(&ar_pci->compl_lock);
+
+	} while (ath10k_ce_completed_recv_next(ce_state,
+							   &transfer_context,
+							   &ce_data, &nbytes,
+							   &transfer_id,
+							   &flags) == 0);
+
+	ath10k_pci_process_ce(ar);
+}
+
+/* Send the first nbytes bytes of the buffer */
+static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
+				    unsigned int transfer_id,
+				    unsigned int bytes, struct sk_buff *nbuf)
+{
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(nbuf);
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info = &(ar_pci->pipe_info[pipe_id]);
+	struct ce_state *ce_hdl = pipe_info->ce_hdl;
+	struct ce_sendlist sendlist;
+	unsigned int len;
+	u32 flags = 0;
+	int ret;
+
+	memset(&sendlist, 0, sizeof(struct ce_sendlist));
+
+	len = min(bytes, nbuf->len);
+	bytes -= len;
+
+	if (len & 3)
+		ath10k_warn("skb not aligned to 4-byte boundary (%d)\n", len);
+
+	ath10k_dbg(ATH10K_DBG_PCI,
+		   "pci send data vaddr %p paddr 0x%llx len %d as %d bytes\n",
+		   nbuf->data, (unsigned long long) skb_cb->paddr,
+		   nbuf->len, len);
+	ath10k_dbg_dump(ATH10K_DBG_PCI_DUMP, NULL,
+			"ath10k tx: data: ",
+			nbuf->data, nbuf->len);
+
+	ath10k_ce_sendlist_buf_add(&sendlist, skb_cb->paddr, len, flags);
+
+	/* Make sure we have resources to handle this request */
+	spin_lock_bh(&pipe_info->pipe_lock);
+	if (!pipe_info->num_sends_allowed) {
+		ath10k_warn("Pipe: %d is full\n", pipe_id);
+		spin_unlock_bh(&pipe_info->pipe_lock);
+		return -ENOSR;
+	}
+	pipe_info->num_sends_allowed--;
+	spin_unlock_bh(&pipe_info->pipe_lock);
+
+	ret = ath10k_ce_sendlist_send(ce_hdl, nbuf, &sendlist, transfer_id);
+	if (ret)
+		ath10k_warn("CE send failed: %p\n", nbuf);
+
+	return ret;
+}
+
+static u16 ath10k_pci_hif_get_free_queue_number(struct ath10k *ar, u8 pipe)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info = &(ar_pci->pipe_info[pipe]);
+	int ret;
+
+	spin_lock_bh(&pipe_info->pipe_lock);
+	ret = pipe_info->num_sends_allowed;
+	spin_unlock_bh(&pipe_info->pipe_lock);
+
+	return ret;
+}
+
+static void ath10k_pci_hif_dump_area(struct ath10k *ar)
+{
+	u32 reg_dump_area = 0;
+	u32 reg_dump_values[REG_DUMP_COUNT_QCA988X] = {};
+	u32 host_addr;
+	int ret;
+	u32 i;
+
+	ath10k_err("firmware crashed!\n");
+	ath10k_err("hardware name %s version 0x%x\n",
+		   ar->hw_params.name, ar->target_version);
+	ath10k_err("firmware version: %u.%u.%u.%u\n", ar->fw_version_major,
+		   ar->fw_version_minor, ar->fw_version_release,
+		   ar->fw_version_build);
+
+	host_addr = host_interest_item_address(HI_ITEM(hi_failure_state));
+	if (ath10k_pci_diag_read_mem(ar, host_addr,
+				     &reg_dump_area, sizeof(u32)) != 0) {
+		ath10k_warn("could not read hi_failure_state\n");
+		return;
+	}
+
+	ath10k_err("target register Dump Location: 0x%08X\n", reg_dump_area);
+
+	ret = ath10k_pci_diag_read_mem(ar, reg_dump_area,
+				       &reg_dump_values[0],
+				       REG_DUMP_COUNT_QCA988X * sizeof(u32));
+	if (ret != 0) {
+		ath10k_err("could not dump FW Dump Area\n");
+		return;
+	}
+
+	BUILD_BUG_ON(REG_DUMP_COUNT_QCA988X % 4);
+
+	ath10k_err("target Register Dump\n");
+	for (i = 0; i < REG_DUMP_COUNT_QCA988X; i += 4)
+		ath10k_err("[%02d]: 0x%08X 0x%08X 0x%08X 0x%08X\n",
+			   i,
+			   reg_dump_values[i],
+			   reg_dump_values[i + 1],
+			   reg_dump_values[i + 2],
+			   reg_dump_values[i + 3]);
+}
+
+static void ath10k_pci_hif_send_complete_check(struct ath10k *ar, u8 pipe,
+					       int force)
+{
+	if (!force) {
+		int resources;
+		/*
+		 * Decide whether to actually poll for completions, or just
+		 * wait for a later chance.
+		 * If there seem to be plenty of resources left, then just wait
+		 * since checking involves reading a CE register, which is a
+		 * relatively expensive operation.
+		 */
+		resources = ath10k_pci_hif_get_free_queue_number(ar, pipe);
+
+		/*
+		 * If at least 50% of the total resources are still available,
+		 * don't bother checking again yet.
+		 */
+		if (resources > (host_ce_config_wlan[pipe].src_nentries >> 1))
+			return;
+	}
+	ath10k_ce_per_engine_service(ar, pipe);
+}
+
+static void ath10k_pci_hif_post_init(struct ath10k *ar,
+				     struct ath10k_hif_cb *callbacks)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	memcpy(&ar_pci->msg_callbacks_current, callbacks,
+	       sizeof(ar_pci->msg_callbacks_current));
+}
+
+static int ath10k_pci_start_ce(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_diag = ar_pci->ce_diag;
+	const struct ce_attr *attr;
+	struct hif_ce_pipe_info *pipe_info;
+	struct ath10k_pci_compl *compl;
+	int i, pipe_num, completions, disable_interrupts;
+
+	spin_lock_init(&ar_pci->compl_lock);
+	INIT_LIST_HEAD(&ar_pci->compl_process);
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+
+		spin_lock_init(&pipe_info->pipe_lock);
+		INIT_LIST_HEAD(&pipe_info->compl_free);
+
+		/* Handle Diagnostic CE specially */
+		if (pipe_info->ce_hdl == ce_diag)
+			continue;
+
+		attr = &host_ce_config_wlan[pipe_num];
+		completions = 0;
+
+		if (attr->src_nentries) {
+			disable_interrupts = attr->flags & CE_ATTR_DIS_INTR;
+			ath10k_ce_send_cb_register(pipe_info->ce_hdl,
+						   ath10k_pci_ce_send_done,
+						   disable_interrupts);
+			completions += attr->src_nentries;
+			pipe_info->num_sends_allowed = attr->src_nentries - 1;
+		}
+
+		if (attr->dest_nentries) {
+			ath10k_ce_recv_cb_register(pipe_info->ce_hdl,
+						   ath10k_pci_ce_recv_data);
+			completions += attr->dest_nentries;
+		}
+
+		if (completions == 0)
+			continue;
+
+		for (i = 0; i < completions; i++) {
+			compl = kmalloc(sizeof(struct ath10k_pci_compl),
+					GFP_KERNEL);
+			if (!compl) {
+				ath10k_warn("No memory for completion state\n");
+				ath10k_pci_stop_ce(ar);
+				return -ENOMEM;
+			}
+
+			compl->send_or_recv = HIF_CE_COMPLETE_FREE;
+			list_add_tail(&compl->list, &pipe_info->compl_free);
+		}
+	}
+
+	return 0;
+}
+
+static void ath10k_pci_stop_ce(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_pci_compl *compl;
+	struct sk_buff *skb;
+	int i;
+
+	ath10k_ce_disable_interrupts(ar);
+
+	/* Cancel the pending tasklet */
+	tasklet_kill(&ar_pci->intr_tq);
+
+	for (i = 0; i < CE_COUNT; i++)
+		tasklet_kill(&ar_pci->pipe_info[i].intr);
+
+	/* Mark pending completions as aborted, so that upper layers free up
+	 * their associated resources */
+	spin_lock_bh(&ar_pci->compl_lock);
+	list_for_each_entry(compl, &ar_pci->compl_process, list) {
+		skb = (struct sk_buff *)compl->transfer_context;
+		ATH10K_SKB_CB(skb)->is_aborted = true;
+	}
+	spin_unlock_bh(&ar_pci->compl_lock);
+}
+
+static void ath10k_pci_cleanup_ce(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_pci_compl *compl, *tmp;
+	struct hif_ce_pipe_info *pipe_info;
+	struct sk_buff *netbuf;
+	int pipe_num;
+
+	/* Free pending completions. */
+	spin_lock_bh(&ar_pci->compl_lock);
+	if (!list_empty(&ar_pci->compl_process))
+		ath10k_warn("pending completions still present! possible memory leaks.\n");
+
+	list_for_each_entry_safe(compl, tmp, &ar_pci->compl_process, list) {
+		list_del(&compl->list);
+		netbuf = (struct sk_buff *)compl->transfer_context;
+		dev_kfree_skb_any(netbuf);
+		kfree(compl);
+	}
+	spin_unlock_bh(&ar_pci->compl_lock);
+
+	/* Free unused completions for each pipe. */
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+
+		spin_lock_bh(&pipe_info->pipe_lock);
+		list_for_each_entry_safe(compl, tmp,
+					 &pipe_info->compl_free, list) {
+			list_del(&compl->list);
+			kfree(compl);
+		}
+		spin_unlock_bh(&pipe_info->pipe_lock);
+	}
+}
+
+static void ath10k_pci_process_ce(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ar->hif.priv;
+	struct ath10k_hif_cb *cb = &ar_pci->msg_callbacks_current;
+	struct ath10k_pci_compl *compl;
+	struct sk_buff *skb;
+	unsigned int nbytes;
+	int ret, send_done = 0;
+
+	/* Upper layers aren't ready to handle tx/rx completions in parallel so
+	 * we must serialize all completion processing. */
+
+	spin_lock_bh(&ar_pci->compl_lock);
+	if (ar_pci->compl_processing) {
+		spin_unlock_bh(&ar_pci->compl_lock);
+		return;
+	}
+	ar_pci->compl_processing = true;
+	spin_unlock_bh(&ar_pci->compl_lock);
+
+	for (;;) {
+		spin_lock_bh(&ar_pci->compl_lock);
+		if (list_empty(&ar_pci->compl_process)) {
+			spin_unlock_bh(&ar_pci->compl_lock);
+			break;
+		}
+		compl = list_first_entry(&ar_pci->compl_process,
+					 struct ath10k_pci_compl, list);
+		list_del(&compl->list);
+		spin_unlock_bh(&ar_pci->compl_lock);
+
+		if (compl->send_or_recv == HIF_CE_COMPLETE_SEND) {
+			cb->tx_completion(ar,
+					  compl->transfer_context,
+					  compl->transfer_id);
+			send_done = 1;
+		} else {
+			ret = ath10k_pci_post_rx_pipe(compl->pipe_info, 1);
+			if (ret) {
+				ath10k_warn("Unable to post recv buffer for pipe: %d\n",
+					    compl->pipe_info->pipe_num);
+				break;
+			}
+
+			skb = (struct sk_buff *)compl->transfer_context;
+			nbytes = compl->nbytes;
+
+			ath10k_dbg(ATH10K_DBG_PCI,
+				   "ath10k_pci_ce_recv_data netbuf=%p  nbytes=%d\n",
+				   skb, nbytes);
+			ath10k_dbg_dump(ATH10K_DBG_PCI_DUMP, NULL,
+					"ath10k rx: ", skb->data, nbytes);
+
+			if (skb->len + skb_tailroom(skb) >= nbytes) {
+				skb_trim(skb, 0);
+				skb_put(skb, nbytes);
+				cb->rx_completion(ar, skb,
+						  compl->pipe_info->pipe_num);
+			} else {
+				ath10k_warn("rxed more than expected (nbytes %d, max %d)",
+					    nbytes,
+					    skb->len + skb_tailroom(skb));
+			}
+		}
+
+		compl->send_or_recv = HIF_CE_COMPLETE_FREE;
+
+		/*
+		 * Add completion back to the pipe's free list.
+		 */
+		spin_lock_bh(&compl->pipe_info->pipe_lock);
+		list_add_tail(&compl->list, &compl->pipe_info->compl_free);
+		compl->pipe_info->num_sends_allowed += send_done;
+		spin_unlock_bh(&compl->pipe_info->pipe_lock);
+	}
+
+	spin_lock_bh(&ar_pci->compl_lock);
+	ar_pci->compl_processing = false;
+	spin_unlock_bh(&ar_pci->compl_lock);
+}
+
+/* TODO - temporary mapping while we have too few CE's */
+static int ath10k_pci_hif_map_service_to_pipe(struct ath10k *ar,
+					      u16 service_id, u8 *ul_pipe,
+					      u8 *dl_pipe, int *ul_is_polled,
+					      int *dl_is_polled)
+{
+	int ret = 0;
+
+	/* polling for received messages not supported */
+	*dl_is_polled = 0;
+
+	switch (service_id) {
+	case ATH10K_HTC_SVC_ID_HTT_DATA_MSG:
+		/*
+		 * Host->target HTT gets its own pipe, so it can be polled
+		 * while other pipes are interrupt driven.
+		 */
+		*ul_pipe = 4;
+		/*
+		 * Use the same target->host pipe for HTC ctrl, HTC raw
+		 * streams, and HTT.
+		 */
+		*dl_pipe = 1;
+		break;
+
+	case ATH10K_HTC_SVC_ID_RSVD_CTRL:
+	case ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS:
+		/*
+		 * Note: HTC_RAW_STREAMS_SVC is currently unused, and
+		 * HTC_CTRL_RSVD_SVC could share the same pipe as the
+		 * WMI services.  So, if another CE is needed, change
+		 * this to *ul_pipe = 3, which frees up CE 0.
+		 */
+		/* *ul_pipe = 3; */
+		*ul_pipe = 0;
+		*dl_pipe = 1;
+		break;
+
+	case ATH10K_HTC_SVC_ID_WMI_DATA_BK:
+	case ATH10K_HTC_SVC_ID_WMI_DATA_BE:
+	case ATH10K_HTC_SVC_ID_WMI_DATA_VI:
+	case ATH10K_HTC_SVC_ID_WMI_DATA_VO:
+
+	case ATH10K_HTC_SVC_ID_WMI_CONTROL:
+		*ul_pipe = 3;
+		*dl_pipe = 2;
+		break;
+
+		/* pipe 5 unused   */
+		/* pipe 6 reserved */
+		/* pipe 7 reserved */
+
+	default:
+		ret = -1;
+		break;
+	}
+	*ul_is_polled =
+		(host_ce_config_wlan[*ul_pipe].flags & CE_ATTR_DIS_INTR) != 0;
+
+	return ret;
+}
+
+static void ath10k_pci_hif_get_default_pipe(struct ath10k *ar,
+						u8 *ul_pipe, u8 *dl_pipe)
+{
+	int ul_is_polled, dl_is_polled;
+
+	(void)ath10k_pci_hif_map_service_to_pipe(ar,
+						 ATH10K_HTC_SVC_ID_RSVD_CTRL,
+						 ul_pipe,
+						 dl_pipe,
+						 &ul_is_polled,
+						 &dl_is_polled);
+}
+
+static int ath10k_pci_post_rx_pipe(struct hif_ce_pipe_info *pipe_info,
+				   int num)
+{
+	struct ath10k *ar = pipe_info->hif_ce_state;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_state = pipe_info->ce_hdl;
+	struct sk_buff *skb;
+	dma_addr_t ce_data;
+	int i, ret = 0;
+
+	if (pipe_info->buf_sz == 0)
+		return 0;
+
+	for (i = 0; i < num; i++) {
+		skb = dev_alloc_skb(pipe_info->buf_sz);
+		if (!skb) {
+			ath10k_warn("could not allocate skbuff for pipe %d\n",
+				    num);
+			ret = -ENOMEM;
+			goto err;
+		}
+
+		WARN_ONCE((unsigned long)skb->data & 3, "unaligned skb");
+
+		ce_data = dma_map_single(ar->dev, skb->data,
+					 skb->len + skb_tailroom(skb),
+					 DMA_FROM_DEVICE);
+
+		if (unlikely(dma_mapping_error(ar->dev, ce_data))) {
+			ath10k_warn("could not dma map skbuff\n");
+			dev_kfree_skb_any(skb);
+			ret = -EIO;
+			goto err;
+		}
+
+		ATH10K_SKB_CB(skb)->paddr = ce_data;
+
+		pci_dma_sync_single_for_device(ar_pci->pdev, ce_data,
+					       pipe_info->buf_sz,
+					       PCI_DMA_FROMDEVICE);
+
+		ret = ath10k_ce_recv_buf_enqueue(ce_state, (void *)skb,
+						 ce_data);
+		if (ret) {
+			ath10k_warn("could not enqueue to pipe %d (%d)\n",
+				    num, ret);
+			goto err;
+		}
+	}
+
+	return ret;
+
+err:
+	ath10k_pci_rx_pipe_cleanup(pipe_info);
+	return ret;
+}
+
+static int ath10k_pci_post_rx(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info;
+	const struct ce_attr *attr;
+	int pipe_num, ret = 0;
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+		attr = &host_ce_config_wlan[pipe_num];
+
+		if (attr->dest_nentries == 0)
+			continue;
+
+		ret = ath10k_pci_post_rx_pipe(pipe_info,
+					      attr->dest_nentries - 1);
+		if (ret) {
+			ath10k_warn("Unable to replenish recv buffers for pipe: %d\n",
+				    pipe_num);
+
+			for (; pipe_num >= 0; pipe_num--) {
+				pipe_info = &ar_pci->pipe_info[pipe_num];
+				ath10k_pci_rx_pipe_cleanup(pipe_info);
+			}
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int ath10k_pci_hif_start(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	ret = ath10k_pci_start_ce(ar);
+	if (ret) {
+		ath10k_warn("could not start CE (%d)\n", ret);
+		return ret;
+	}
+
+	/* Post buffers once to start things off. */
+	ret = ath10k_pci_post_rx(ar);
+	if (ret) {
+		ath10k_warn("could not post rx pipes (%d)\n", ret);
+		return ret;
+	}
+
+	ar_pci->started = 1;
+	return 0;
+}
+
+static void ath10k_pci_rx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info)
+{
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+	struct ce_state *ce_hdl;
+	u32 buf_sz;
+	struct sk_buff *netbuf;
+	u32 ce_data;
+
+	buf_sz = pipe_info->buf_sz;
+
+	/* Unused Copy Engine */
+	if (buf_sz == 0)
+		return;
+
+	ar = pipe_info->hif_ce_state;
+	ar_pci = ath10k_pci_priv(ar);
+
+	if (!ar_pci->started)
+		return;
+
+	ce_hdl = pipe_info->ce_hdl;
+
+	while (ath10k_ce_revoke_recv_next(ce_hdl, (void **)&netbuf,
+					  &ce_data) == 0) {
+		dma_unmap_single(ar->dev, ATH10K_SKB_CB(netbuf)->paddr,
+				 netbuf->len + skb_tailroom(netbuf),
+				 DMA_FROM_DEVICE);
+		dev_kfree_skb_any(netbuf);
+	}
+}
+
+static void ath10k_pci_tx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info)
+{
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+	struct ce_state *ce_hdl;
+	struct sk_buff *netbuf;
+	u32 ce_data;
+	unsigned int nbytes;
+	unsigned int id;
+	u32 buf_sz;
+
+	buf_sz = pipe_info->buf_sz;
+
+	/* Unused Copy Engine */
+	if (buf_sz == 0)
+		return;
+
+	ar = pipe_info->hif_ce_state;
+	ar_pci = ath10k_pci_priv(ar);
+
+	if (!ar_pci->started)
+		return;
+
+	ce_hdl = pipe_info->ce_hdl;
+
+	while (ath10k_ce_cancel_send_next(ce_hdl, (void **)&netbuf,
+					  &ce_data, &nbytes, &id) == 0) {
+		if (netbuf != CE_SENDLIST_ITEM_CTXT)
+			/*
+			 * Indicate the completion to higer layer to free
+			 * the buffer
+			 */
+			ATH10K_SKB_CB(netbuf)->is_aborted = true;
+			ar_pci->msg_callbacks_current.tx_completion(ar,
+								    netbuf,
+								    id);
+	}
+}
+
+/*
+ * Cleanup residual buffers for device shutdown:
+ *    buffers that were enqueued for receive
+ *    buffers that were to be sent
+ * Note: Buffers that had completed but which were
+ * not yet processed are on a completion queue. They
+ * are handled when the completion thread shuts down.
+ */
+static void ath10k_pci_buffer_cleanup(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int pipe_num;
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		struct hif_ce_pipe_info *pipe_info;
+
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+		ath10k_pci_rx_pipe_cleanup(pipe_info);
+		ath10k_pci_tx_pipe_cleanup(pipe_info);
+	}
+}
+
+static void ath10k_pci_ce_deinit(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info;
+	int pipe_num;
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+		if (pipe_info->ce_hdl) {
+			ath10k_ce_deinit(pipe_info->ce_hdl);
+			pipe_info->ce_hdl = NULL;
+			pipe_info->buf_sz = 0;
+		}
+	}
+}
+
+static void ath10k_pci_hif_stop(struct ath10k *ar)
+{
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	ath10k_pci_stop_ce(ar);
+
+	/* At this point, asynchronous threads are stopped, the target should
+	 * not DMA nor interrupt. We process the leftovers and then free
+	 * everything else up. */
+
+	ath10k_pci_process_ce(ar);
+	ath10k_pci_cleanup_ce(ar);
+	ath10k_pci_buffer_cleanup(ar);
+	ath10k_pci_ce_deinit(ar);
+}
+
+static int ath10k_pci_hif_exchange_bmi_msg(struct ath10k *ar,
+					   void *req, u32 req_len,
+					   void *resp, u32 *resp_len)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_tx = ar_pci->pipe_info[BMI_CE_NUM_TO_TARG].ce_hdl;
+	struct ce_state *ce_rx = ar_pci->pipe_info[BMI_CE_NUM_TO_HOST].ce_hdl;
+	dma_addr_t req_paddr = 0;
+	dma_addr_t resp_paddr = 0;
+	struct bmi_xfer xfer = {};
+	void *treq, *tresp = NULL;
+	int ret = 0;
+
+	if (resp && !resp_len)
+		return -EINVAL;
+
+	if (resp && resp_len && *resp_len == 0)
+		return -EINVAL;
+
+	treq = kmemdup(req, req_len, GFP_KERNEL);
+	if (!treq)
+		return -ENOMEM;
+
+	req_paddr = dma_map_single(ar->dev, treq, req_len, DMA_TO_DEVICE);
+	ret = dma_mapping_error(ar->dev, req_paddr);
+	if (ret)
+		goto err_dma;
+
+	if (resp && resp_len) {
+		tresp = kzalloc(*resp_len, GFP_KERNEL);
+		if (!tresp) {
+			ret = -ENOMEM;
+			goto err_req;
+		}
+
+		resp_paddr = dma_map_single(ar->dev, tresp, *resp_len,
+					    DMA_FROM_DEVICE);
+		ret = dma_mapping_error(ar->dev, resp_paddr);
+		if (ret)
+			goto err_req;
+
+		xfer.wait_for_resp = true;
+		xfer.resp_len = 0;
+
+		ath10k_ce_recv_buf_enqueue(ce_rx, &xfer, resp_paddr);
+	}
+
+	init_completion(&xfer.done);
+
+	ret = ath10k_ce_send(ce_tx, &xfer, req_paddr, req_len, -1, 0);
+	if (ret)
+		goto err_resp;
+
+	ret = wait_for_completion_timeout(&xfer.done,
+					  BMI_COMMUNICATION_TIMEOUT_HZ);
+	if (ret <= 0) {
+		u32 unused_buffer;
+		unsigned int unused_nbytes;
+		unsigned int unused_id;
+
+		ret = -ETIMEDOUT;
+		ath10k_ce_cancel_send_next(ce_tx, NULL, &unused_buffer,
+					   &unused_nbytes, &unused_id);
+	} else {
+		/* non-zero means we did not time out */
+		ret = 0;
+	}
+
+err_resp:
+	if (resp) {
+		u32 unused_buffer;
+
+		ath10k_ce_revoke_recv_next(ce_rx, NULL, &unused_buffer);
+		dma_unmap_single(ar->dev, resp_paddr,
+				 *resp_len, DMA_FROM_DEVICE);
+	}
+err_req:
+	dma_unmap_single(ar->dev, req_paddr, req_len, DMA_TO_DEVICE);
+
+	if (ret == 0 && resp_len) {
+		*resp_len = min(*resp_len, xfer.resp_len);
+		memcpy(resp, tresp, xfer.resp_len);
+	}
+err_dma:
+	kfree(treq);
+	kfree(tresp);
+
+	return ret;
+}
+
+static void ath10k_pci_bmi_send_done(struct ce_state *ce_state,
+				     void *transfer_context,
+				     u32 data,
+				     unsigned int nbytes,
+				     unsigned int transfer_id)
+{
+	struct bmi_xfer *xfer = transfer_context;
+
+	if (xfer->wait_for_resp)
+		return;
+
+	complete(&xfer->done);
+}
+
+static void ath10k_pci_bmi_recv_data(struct ce_state *ce_state,
+				     void *transfer_context,
+				     u32 data,
+				     unsigned int nbytes,
+				     unsigned int transfer_id,
+				     unsigned int flags)
+{
+	struct bmi_xfer *xfer = transfer_context;
+
+	if (!xfer->wait_for_resp) {
+		ath10k_warn("unexpected: BMI data received; ignoring\n");
+		return;
+	}
+
+	xfer->resp_len = nbytes;
+	complete(&xfer->done);
+}
+
+/*
+ * Map from service/endpoint to Copy Engine.
+ * This table is derived from the CE_PCI TABLE, above.
+ * It is passed to the Target at startup for use by firmware.
+ */
+static const struct service_to_pipe target_service_to_ce_map_wlan[] = {
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_VO,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_VO,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_BK,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_BK,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_BE,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_BE,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_VI,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_VI,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_CONTROL,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_CONTROL,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_RSVD_CTRL,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 0,		/* could be moved to 3 (share with WMI) */
+	},
+	{
+		 ATH10K_HTC_SVC_ID_RSVD_CTRL,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 1,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS,	/* not currently used */
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 0,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS,	/* not currently used */
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 1,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_HTT_DATA_MSG,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 4,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_HTT_DATA_MSG,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 1,
+	},
+
+	/* (Additions here) */
+
+	{				/* Must be last */
+		 0,
+		 0,
+		 0,
+	},
+};
+
+/*
+ * Send an interrupt to the device to wake up the Target CPU
+ * so it has an opportunity to notice any changed state.
+ */
+static int ath10k_pci_wake_target_cpu(struct ath10k *ar)
+{
+	int ret;
+	u32 core_ctrl;
+
+	ret = ath10k_pci_diag_read_access(ar, SOC_CORE_BASE_ADDRESS |
+					      CORE_CTRL_ADDRESS,
+					  &core_ctrl);
+	if (ret) {
+		ath10k_warn("Unable to read core ctrl\n");
+		return ret;
+	}
+
+	/* A_INUM_FIRMWARE interrupt to Target CPU */
+	core_ctrl |= CORE_CTRL_CPU_INTR_MASK;
+
+	ret = ath10k_pci_diag_write_access(ar, SOC_CORE_BASE_ADDRESS |
+					       CORE_CTRL_ADDRESS,
+					   core_ctrl);
+	if (ret)
+		ath10k_warn("Unable to set interrupt mask\n");
+
+	return ret;
+}
+
+static int ath10k_pci_init_config(struct ath10k *ar)
+{
+	u32 interconnect_targ_addr;
+	u32 pcie_state_targ_addr = 0;
+	u32 pipe_cfg_targ_addr = 0;
+	u32 svc_to_pipe_map = 0;
+	u32 pcie_config_flags = 0;
+	u32 ealloc_value;
+	u32 ealloc_targ_addr;
+	u32 flag2_value;
+	u32 flag2_targ_addr;
+	int ret = 0;
+
+	/* Download to Target the CE Config and the service-to-CE map */
+	interconnect_targ_addr =
+		host_interest_item_address(HI_ITEM(hi_interconnect_state));
+
+	/* Supply Target-side CE configuration */
+	ret = ath10k_pci_diag_read_access(ar, interconnect_targ_addr,
+					  &pcie_state_targ_addr);
+	if (ret != 0) {
+		ath10k_err("Failed to get pcie state addr: %d\n", ret);
+		return ret;
+	}
+
+	if (pcie_state_targ_addr == 0) {
+		ret = -EIO;
+		ath10k_err("Invalid pcie state addr\n");
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_read_access(ar, pcie_state_targ_addr +
+					  offsetof(struct pcie_state,
+						   pipe_cfg_addr),
+					  &pipe_cfg_targ_addr);
+	if (ret != 0) {
+		ath10k_err("Failed to get pipe cfg addr: %d\n", ret);
+		return ret;
+	}
+
+	if (pipe_cfg_targ_addr == 0) {
+		ret = -EIO;
+		ath10k_err("Invalid pipe cfg addr\n");
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_write_mem(ar, pipe_cfg_targ_addr,
+				 target_ce_config_wlan,
+				 sizeof(target_ce_config_wlan));
+
+	if (ret != 0) {
+		ath10k_err("Failed to write pipe cfg: %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_read_access(ar, pcie_state_targ_addr +
+					  offsetof(struct pcie_state,
+						   svc_to_pipe_map),
+					  &svc_to_pipe_map);
+	if (ret != 0) {
+		ath10k_err("Failed to get svc/pipe map: %d\n", ret);
+		return ret;
+	}
+
+	if (svc_to_pipe_map == 0) {
+		ret = -EIO;
+		ath10k_err("Invalid svc_to_pipe map\n");
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_write_mem(ar, svc_to_pipe_map,
+				 target_service_to_ce_map_wlan,
+				 sizeof(target_service_to_ce_map_wlan));
+	if (ret != 0) {
+		ath10k_err("Failed to write svc/pipe map: %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_read_access(ar, pcie_state_targ_addr +
+					  offsetof(struct pcie_state,
+						   config_flags),
+					  &pcie_config_flags);
+	if (ret != 0) {
+		ath10k_err("Failed to get pcie config_flags: %d\n", ret);
+		return ret;
+	}
+
+	pcie_config_flags &= ~PCIE_CONFIG_FLAG_ENABLE_L1;
+
+	ret = ath10k_pci_diag_write_mem(ar, pcie_state_targ_addr +
+				 offsetof(struct pcie_state, config_flags),
+				 &pcie_config_flags,
+				 sizeof(pcie_config_flags));
+	if (ret != 0) {
+		ath10k_err("Failed to write pcie config_flags: %d\n", ret);
+		return ret;
+	}
+
+	/* configure early allocation */
+	ealloc_targ_addr = host_interest_item_address(HI_ITEM(hi_early_alloc));
+
+	ret = ath10k_pci_diag_read_access(ar, ealloc_targ_addr, &ealloc_value);
+	if (ret != 0) {
+		ath10k_err("Faile to get early alloc val: %d\n", ret);
+		return ret;
+	}
+
+	/* first bank is switched to IRAM */
+	ealloc_value |= ((HI_EARLY_ALLOC_MAGIC << HI_EARLY_ALLOC_MAGIC_SHIFT) &
+			 HI_EARLY_ALLOC_MAGIC_MASK);
+	ealloc_value |= ((1 << HI_EARLY_ALLOC_IRAM_BANKS_SHIFT) &
+			 HI_EARLY_ALLOC_IRAM_BANKS_MASK);
+
+	ret = ath10k_pci_diag_write_access(ar, ealloc_targ_addr, ealloc_value);
+	if (ret != 0) {
+		ath10k_err("Failed to set early alloc val: %d\n", ret);
+		return ret;
+	}
+
+	/* Tell Target to proceed with initialization */
+	flag2_targ_addr = host_interest_item_address(HI_ITEM(hi_option_flag2));
+
+	ret = ath10k_pci_diag_read_access(ar, flag2_targ_addr, &flag2_value);
+	if (ret != 0) {
+		ath10k_err("Failed to get option val: %d\n", ret);
+		return ret;
+	}
+
+	flag2_value |= HI_OPTION_EARLY_CFG_DONE;
+
+	ret = ath10k_pci_diag_write_access(ar, flag2_targ_addr, flag2_value);
+	if (ret != 0) {
+		ath10k_err("Failed to set option val: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+
+
+static int ath10k_pci_ce_init(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info;
+	const struct ce_attr *attr;
+	int pipe_num;
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+		pipe_info->pipe_num = pipe_num;
+		pipe_info->hif_ce_state = ar;
+		attr = &host_ce_config_wlan[pipe_num];
+
+		pipe_info->ce_hdl = ath10k_ce_init(ar, pipe_num, attr);
+		if (pipe_info->ce_hdl == NULL) {
+			ath10k_err("Unable to initialize CE for pipe: %d\n",
+				   pipe_num);
+
+			/* It is safe to call it here. It checks if ce_hdl is
+			 * valid for each pipe */
+			ath10k_pci_ce_deinit(ar);
+			return -1;
+		}
+
+		if (pipe_num == ar_pci->ce_count - 1) {
+			/*
+			 * Reserve the ultimate CE for
+			 * diagnostic Window support
+			 */
+			ar_pci->ce_diag =
+			ar_pci->pipe_info[ar_pci->ce_count - 1].ce_hdl;
+			continue;
+		}
+
+		pipe_info->buf_sz = (size_t) (attr->src_sz_max);
+	}
+
+	/*
+	 * Initially, establish CE completion handlers for use with BMI.
+	 * These are overwritten with generic handlers after we exit BMI phase.
+	 */
+	pipe_info = &ar_pci->pipe_info[BMI_CE_NUM_TO_TARG];
+	ath10k_ce_send_cb_register(pipe_info->ce_hdl,
+				   ath10k_pci_bmi_send_done, 0);
+
+	pipe_info = &ar_pci->pipe_info[BMI_CE_NUM_TO_HOST];
+	ath10k_ce_recv_cb_register(pipe_info->ce_hdl,
+				   ath10k_pci_bmi_recv_data);
+
+	return 0;
+}
+
+static void ath10k_pci_fw_interrupt_handler(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	u32 fw_indicator_address, fw_indicator;
+
+	ath10k_pci_wake(ar);
+
+	fw_indicator_address = ar_pci->fw_indicator_address;
+	fw_indicator = ath10k_pci_read32(ar, fw_indicator_address);
+
+	if (fw_indicator & FW_IND_EVENT_PENDING) {
+		/* ACK: clear Target-side pending event */
+		ath10k_pci_write32(ar, fw_indicator_address,
+				   fw_indicator & ~FW_IND_EVENT_PENDING);
+
+		if (ar_pci->started) {
+			ath10k_pci_hif_dump_area(ar);
+		} else {
+			/*
+			 * Probable Target failure before we're prepared
+			 * to handle it.  Generally unexpected.
+			 */
+			ath10k_warn("early firmware event indicated\n");
+		}
+	}
+
+	ath10k_pci_sleep(ar);
+}
+
+static const struct ath10k_hif_ops ath10k_pci_hif_ops = {
+	.send_head		= ath10k_pci_hif_send_head,
+	.exchange_bmi_msg	= ath10k_pci_hif_exchange_bmi_msg,
+	.start			= ath10k_pci_hif_start,
+	.stop			= ath10k_pci_hif_stop,
+	.map_service_to_pipe	= ath10k_pci_hif_map_service_to_pipe,
+	.get_default_pipe	= ath10k_pci_hif_get_default_pipe,
+	.send_complete_check	= ath10k_pci_hif_send_complete_check,
+	.init			= ath10k_pci_hif_post_init,
+	.get_free_queue_number	= ath10k_pci_hif_get_free_queue_number,
+};
+
+static void ath10k_pci_ce_tasklet(unsigned long ptr)
+{
+	struct hif_ce_pipe_info *pipe = (struct hif_ce_pipe_info *)ptr;
+	struct ath10k_pci *ar_pci = pipe->ar_pci;
+
+	ath10k_ce_per_engine_service(ar_pci->ar, pipe->pipe_num);
+}
+
+static void ath10k_msi_err_tasklet(unsigned long data)
+{
+	struct ath10k *ar = (struct ath10k *)data;
+
+	ath10k_pci_fw_interrupt_handler(ar);
+}
+
+/*
+ * Handler for a per-engine interrupt on a PARTICULAR CE.
+ * This is used in cases where each CE has a private MSI interrupt.
+ */
+static irqreturn_t ath10k_pci_per_engine_handler(int irq, void *arg)
+{
+	struct ath10k *ar = arg;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ce_id = irq - ar_pci->pdev->irq - MSI_ASSIGN_CE_INITIAL;
+
+	if (ce_id < 0 || ce_id > ARRAY_SIZE(ar_pci->pipe_info)) {
+		ath10k_warn("unexpected/invalid irq %d ce_id %d\n", irq, ce_id);
+		return IRQ_HANDLED;
+	}
+
+	/*
+	 * NOTE: We are able to derive ce_id from irq because we
+	 * use a one-to-one mapping for CE's 0..5.
+	 * CE's 6 & 7 do not use interrupts at all.
+	 *
+	 * This mapping must be kept in sync with the mapping
+	 * used by firmware.
+	 */
+	tasklet_schedule(&ar_pci->pipe_info[ce_id].intr);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t ath10k_pci_msi_fw_handler(int irq, void *arg)
+{
+	struct ath10k *ar = arg;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	tasklet_schedule(&ar_pci->msi_fw_err);
+	return IRQ_HANDLED;
+}
+
+/*
+ * Top-level interrupt handler for all PCI interrupts from a Target.
+ * When a block of MSI interrupts is allocated, this top-level handler
+ * is not used; instead, we directly call the correct sub-handler.
+ */
+static irqreturn_t ath10k_pci_interrupt_handler(int irq, void *arg)
+{
+	struct ath10k *ar = arg;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	if (ar_pci->num_msi_intrs == 0) {
+		/*
+		 * IMPORTANT: INTR_CLR regiser has to be set after
+		 * INTR_ENABLE is set to 0, otherwise interrupt can not be
+		 * really cleared.
+		 */
+		iowrite32(0, ar_pci->mem +
+			  (SOC_CORE_BASE_ADDRESS |
+			   PCIE_INTR_ENABLE_ADDRESS));
+		iowrite32(PCIE_INTR_FIRMWARE_MASK |
+			  PCIE_INTR_CE_MASK_ALL,
+			  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
+					 PCIE_INTR_CLR_ADDRESS));
+		/*
+		 * IMPORTANT: this extra read transaction is required to
+		 * flush the posted write buffer.
+		 */
+		(void) ioread32(ar_pci->mem +
+				(SOC_CORE_BASE_ADDRESS |
+				 PCIE_INTR_ENABLE_ADDRESS));
+	}
+
+	tasklet_schedule(&ar_pci->intr_tq);
+
+	return IRQ_HANDLED;
+}
+
+static void ath10k_pci_tasklet(unsigned long data)
+{
+	struct ath10k *ar = (struct ath10k *)data;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	ath10k_pci_fw_interrupt_handler(ar); /* FIXME: Handle FW error */
+	ath10k_ce_per_engine_service_any(ar);
+
+	if (ar_pci->num_msi_intrs == 0) {
+		/* Enable Legacy PCI line interrupts */
+		iowrite32(PCIE_INTR_FIRMWARE_MASK |
+			  PCIE_INTR_CE_MASK_ALL,
+			  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
+					 PCIE_INTR_ENABLE_ADDRESS));
+		/*
+		 * IMPORTANT: this extra read transaction is required to
+		 * flush the posted write buffer
+		 */
+		(void) ioread32(ar_pci->mem +
+				(SOC_CORE_BASE_ADDRESS |
+				 PCIE_INTR_ENABLE_ADDRESS));
+	}
+}
+
+static int ath10k_pci_start_intr_msix(struct ath10k *ar, int num)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+	int i;
+
+	ret = pci_enable_msi_block(ar_pci->pdev, num);
+	if (ret)
+		return ret;
+
+	ret = request_irq(ar_pci->pdev->irq + MSI_ASSIGN_FW,
+			  ath10k_pci_msi_fw_handler,
+			  IRQF_SHARED, "ath10k_pci", ar);
+	if (ret)
+		return ret;
+
+	for (i = MSI_ASSIGN_CE_INITIAL; i <= MSI_ASSIGN_CE_MAX; i++) {
+		ret = request_irq(ar_pci->pdev->irq + i,
+				  ath10k_pci_per_engine_handler,
+				  IRQF_SHARED, "ath10k_pci", ar);
+		if (ret) {
+			ath10k_warn("request_irq(%d) failed %d\n",
+				    ar_pci->pdev->irq + i, ret);
+
+			for (; i >= MSI_ASSIGN_CE_INITIAL; i--)
+				free_irq(ar_pci->pdev->irq, ar);
+
+			pci_disable_msi(ar_pci->pdev);
+			return ret;
+		}
+	}
+
+	ath10k_info("MSI-X interrupt handling (%d intrs)\n", num);
+	return 0;
+}
+
+static int ath10k_pci_start_intr_msi(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	ret = pci_enable_msi(ar_pci->pdev);
+	if (ret < 0)
+		return ret;
+
+	ret = request_irq(ar_pci->pdev->irq,
+			  ath10k_pci_interrupt_handler,
+			  IRQF_SHARED, "ath10k_pci", ar);
+	if (ret < 0) {
+		pci_disable_msi(ar_pci->pdev);
+		return ret;
+	}
+
+	ath10k_info("MSI interrupt handling\n");
+	return 0;
+}
+
+static int ath10k_pci_start_intr_legacy(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	ret = request_irq(ar_pci->pdev->irq,
+			  ath10k_pci_interrupt_handler,
+			  IRQF_SHARED, "ath10k_pci", ar);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Make sure to wake the Target before enabling Legacy
+	 * Interrupt.
+	 */
+	iowrite32(PCIE_SOC_WAKE_V_MASK,
+		  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+		  PCIE_SOC_WAKE_ADDRESS);
+
+	ath10k_pci_wait(ar);
+
+	/*
+	 * A potential race occurs here: The CORE_BASE write
+	 * depends on target correctly decoding AXI address but
+	 * host won't know when target writes BAR to CORE_CTRL.
+	 * This write might get lost if target has NOT written BAR.
+	 * For now, fix the race by repeating the write in below
+	 * synchronization checking.
+	 */
+	iowrite32(PCIE_INTR_FIRMWARE_MASK |
+		  PCIE_INTR_CE_MASK_ALL,
+		  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
+				 PCIE_INTR_ENABLE_ADDRESS));
+	iowrite32(PCIE_SOC_WAKE_RESET,
+		  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+		  PCIE_SOC_WAKE_ADDRESS);
+
+	ath10k_info("legacy interrupt handling\n");
+	return 0;
+}
+
+static int ath10k_pci_start_intr(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int num = MSI_NUM_REQUEST;
+	int ret;
+	int i;
+
+	tasklet_init(&ar_pci->intr_tq, ath10k_pci_tasklet, (unsigned long) ar);
+	tasklet_init(&ar_pci->msi_fw_err, ath10k_msi_err_tasklet,
+		     (unsigned long) ar);
+
+	for (i = 0; i < CE_COUNT; i++) {
+		ar_pci->pipe_info[i].ar_pci = ar_pci;
+		tasklet_init(&ar_pci->pipe_info[i].intr,
+			     ath10k_pci_ce_tasklet,
+			     (unsigned long)&ar_pci->pipe_info[i]);
+	}
+
+	if (!test_bit(ATH10K_PCI_FEATURE_MSI_X, ar_pci->features))
+		num = 1;
+
+	if (num > 1) {
+		ret = ath10k_pci_start_intr_msix(ar, num);
+		if (ret == 0)
+			goto exit;
+
+		ath10k_warn("MSI-X didn't succeed (%d), trying MSI\n", ret);
+		num = 1;
+	}
+
+	if (num == 1) {
+		ret = ath10k_pci_start_intr_msi(ar);
+		if (ret == 0)
+			goto exit;
+
+		ath10k_warn("MSI didn't succeed (%d), trying legacy INTR\n",
+			    ret);
+		num = 0;
+	}
+
+	ret = ath10k_pci_start_intr_legacy(ar);
+
+exit:
+	ar_pci->num_msi_intrs = num;
+	ar_pci->ce_count = CE_COUNT;
+	return ret;
+}
+
+static void ath10k_pci_stop_intr(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int i;
+
+	/* There's at least one interrupt irregardless whether its legacy INTR
+	 * or MSI or MSI-X */
+	for (i = 0; i < max(1, ar_pci->num_msi_intrs); i++)
+		free_irq(ar_pci->pdev->irq + i, ar);
+
+	if (ar_pci->num_msi_intrs > 0)
+		pci_disable_msi(ar_pci->pdev);
+}
+
+static int ath10k_pci_reset_target(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int wait_limit = 300; /* 3 sec */
+
+	/* Wait for Target to finish initialization before we proceed. */
+	iowrite32(PCIE_SOC_WAKE_V_MASK,
+		  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+		  PCIE_SOC_WAKE_ADDRESS);
+
+	ath10k_pci_wait(ar);
+
+	while (wait_limit-- &&
+	       !(ioread32(ar_pci->mem + FW_INDICATOR_ADDRESS) &
+		 FW_IND_INITIALIZED)) {
+		if (ar_pci->num_msi_intrs == 0)
+			/* Fix potential race by repeating CORE_BASE writes */
+			iowrite32(PCIE_INTR_FIRMWARE_MASK |
+				  PCIE_INTR_CE_MASK_ALL,
+				  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
+						 PCIE_INTR_ENABLE_ADDRESS));
+		mdelay(10);
+	}
+
+	if (wait_limit < 0) {
+		ath10k_err("Target stalled\n");
+		iowrite32(PCIE_SOC_WAKE_RESET,
+			  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+			  PCIE_SOC_WAKE_ADDRESS);
+		return -EIO;
+	}
+
+	iowrite32(PCIE_SOC_WAKE_RESET,
+		  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+		  PCIE_SOC_WAKE_ADDRESS);
+
+	return 0;
+}
+
+static void ath10k_pci_device_reset(struct ath10k_pci *ar_pci)
+{
+	struct ath10k *ar = ar_pci->ar;
+	void __iomem *mem = ar_pci->mem;
+	int i;
+	u32 val;
+
+	if (!SOC_GLOBAL_RESET_ADDRESS)
+		return;
+
+	if (!mem)
+		return;
+
+	ath10k_pci_reg_write32(mem, PCIE_SOC_WAKE_ADDRESS,
+			       PCIE_SOC_WAKE_V_MASK);
+	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
+		if (ath10k_pci_target_is_awake(ar))
+			break;
+		msleep(1);
+	}
+
+	/* Put Target, including PCIe, into RESET. */
+	val = ath10k_pci_reg_read32(mem, SOC_GLOBAL_RESET_ADDRESS);
+	val |= 1;
+	ath10k_pci_reg_write32(mem, SOC_GLOBAL_RESET_ADDRESS, val);
+
+	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
+		if (ath10k_pci_reg_read32(mem, RTC_STATE_ADDRESS) &
+					  RTC_STATE_COLD_RESET_MASK)
+			break;
+		msleep(1);
+	}
+
+	/* Pull Target, including PCIe, out of RESET. */
+	val &= ~1;
+	ath10k_pci_reg_write32(mem, SOC_GLOBAL_RESET_ADDRESS, val);
+
+	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
+		if (!(ath10k_pci_reg_read32(mem, RTC_STATE_ADDRESS) &
+					    RTC_STATE_COLD_RESET_MASK))
+			break;
+		msleep(1);
+	}
+
+	ath10k_pci_reg_write32(mem, PCIE_SOC_WAKE_ADDRESS, PCIE_SOC_WAKE_RESET);
+}
+
+static void ath10k_pci_dump_features(struct ath10k_pci *ar_pci)
+{
+	int i;
+
+	for (i = 0; i < ATH10K_PCI_FEATURE_COUNT; i++) {
+		if (!test_bit(i, ar_pci->features))
+			continue;
+
+		switch (i) {
+		case ATH10K_PCI_FEATURE_MSI_X:
+			ath10k_dbg(ATH10K_DBG_PCI, "device supports MSI-X\n");
+			break;
+		case ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND:
+			ath10k_dbg(ATH10K_DBG_PCI, "QCA988X_1.0 workaround enabled\n");
+			break;
+		}
+	}
+}
+
+static int ath10k_pci_probe(struct pci_dev *pdev,
+			    const struct pci_device_id *pci_dev)
+{
+	void __iomem *mem;
+	int ret = 0;
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+	u32 lcr_val;
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	ar_pci = kzalloc(sizeof(*ar_pci), GFP_KERNEL);
+	if (ar_pci == NULL)
+		return -ENOMEM;
+
+	ar_pci->pdev = pdev;
+	ar_pci->dev = &pdev->dev;
+
+	switch (pci_dev->device) {
+	case QCA988X_1_0_DEVICE_ID:
+		set_bit(ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND, ar_pci->features);
+		break;
+	case QCA988X_2_0_DEVICE_ID:
+		set_bit(ATH10K_PCI_FEATURE_MSI_X, ar_pci->features);
+		break;
+	default:
+		ret = -ENODEV;
+		ath10k_err("Unkown device ID: %d\n", pci_dev->device);
+		goto err_ar_pci;
+	}
+
+	ath10k_pci_dump_features(ar_pci);
+
+	ar = ath10k_core_create(ar_pci, ar_pci->dev, ATH10K_BUS_PCI,
+				&ath10k_pci_hif_ops);
+	if (!ar) {
+		ath10k_err("ath10k_core_create failed!\n");
+		ret = -EINVAL;
+		goto err_ar_pci;
+	}
+
+	/* Enable QCA988X_1.0 HW workarounds */
+	if (test_bit(ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND, ar_pci->features))
+		spin_lock_init(&ar_pci->hw_v1_workaround_lock);
+
+	ar_pci->ar = ar;
+	ar_pci->fw_indicator_address = FW_INDICATOR_ADDRESS;
+	atomic_set(&ar_pci->keep_awake_count, 0);
+
+	pci_set_drvdata(pdev, ar);
+
+	/*
+	 * Without any knowledge of the Host, the Target may have been reset or
+	 * power cycled and its Config Space may no longer reflect the PCI
+	 * address space that was assigned earlier by the PCI infrastructure.
+	 * Refresh it now.
+	 */
+	ret = pci_assign_resource(pdev, BAR_NUM);
+	if (ret) {
+		ath10k_err("cannot assign PCI space: %d\n", ret);
+		goto err_ar;
+	}
+
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		ath10k_err("cannot enable PCI device: %d\n", ret);
+		goto err_ar;
+	}
+
+	/* Request MMIO resources */
+	ret = pci_request_region(pdev, BAR_NUM, "ath");
+	if (ret) {
+		ath10k_err("PCI MMIO reservation error: %d\n", ret);
+		goto err_device;
+	}
+
+	/*
+	 * Target structures have a limit of 32 bit DMA pointers.
+	 * DMA pointers can be wider than 32 bits by default on some systems.
+	 */
+	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	if (ret) {
+		ath10k_err("32-bit DMA not available: %d\n", ret);
+		goto err_region;
+	}
+
+	ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+	if (ret) {
+		ath10k_err("cannot enable 32-bit consistent DMA\n");
+		goto err_region;
+	}
+
+	/* Set bus master bit in PCI_COMMAND to enable DMA */
+	pci_set_master(pdev);
+
+	/*
+	 * Temporary FIX: disable ASPM
+	 * Will be removed after the OTP is programmed
+	 */
+	pci_read_config_dword(pdev, 0x80, &lcr_val);
+	pci_write_config_dword(pdev, 0x80, (lcr_val & 0xffffff00));
+
+	/* Arrange for access to Target SoC registers. */
+	mem = pci_iomap(pdev, BAR_NUM, 0);
+	if (!mem) {
+		ath10k_err("PCI iomap error\n");
+		ret = -EIO;
+		goto err_master;
+	}
+
+	ar_pci->mem = mem;
+
+	spin_lock_init(&ar_pci->ce_lock);
+
+	ar_pci->cacheline_sz = dma_get_cache_alignment();
+
+	ret = ath10k_pci_start_intr(ar);
+	if (ret) {
+		ath10k_err("could not start interrupt handling (%d)\n", ret);
+		goto err_iomap;
+	}
+
+	/*
+	 * Bring the target up cleanly.
+	 *
+	 * The target may be in an undefined state with an AUX-powered Target
+	 * and a Host in WoW mode. If the Host crashes, loses power, or is
+	 * restarted (without unloading the driver) then the Target is left
+	 * (aux) powered and running. On a subsequent driver load, the Target
+	 * is in an unexpected state. We try to catch that here in order to
+	 * reset the Target and retry the probe.
+	 */
+	ath10k_pci_device_reset(ar_pci);
+
+	ret = ath10k_pci_reset_target(ar);
+	if (ret)
+		goto err_intr;
+
+	if (ath10k_target_ps) {
+		ath10k_dbg(ATH10K_DBG_PCI, "on-chip power save enabled\n");
+	} else {
+		/* Force AWAKE forever */
+		ath10k_dbg(ATH10K_DBG_PCI, "on-chip power save disabled\n");
+		ath10k_do_pci_wake(ar);
+	}
+
+	ret = ath10k_pci_ce_init(ar);
+	if (ret)
+		goto err_intr;
+
+	ret = ath10k_pci_init_config(ar);
+	if (ret)
+		goto err_ce;
+
+	ret = ath10k_pci_wake_target_cpu(ar);
+	if (ret) {
+		ath10k_err("could not wake up target CPU (%d)\n", ret);
+		goto err_ce;
+	}
+
+	ret = ath10k_core_register(ar);
+	if (ret) {
+		ath10k_err("could not register driver core (%d)\n", ret);
+		goto err_ce;
+	}
+
+	return 0;
+
+err_ce:
+	ath10k_pci_ce_deinit(ar);
+err_intr:
+	ath10k_pci_stop_intr(ar);
+err_iomap:
+	pci_iounmap(pdev, mem);
+err_master:
+	pci_clear_master(pdev);
+err_region:
+	pci_release_region(pdev, BAR_NUM);
+err_device:
+	pci_disable_device(pdev);
+err_ar:
+	pci_set_drvdata(pdev, NULL);
+	ath10k_core_destroy(ar);
+err_ar_pci:
+	/* call HIF PCI free here */
+	kfree(ar_pci);
+
+	return ret;
+}
+
+static void ath10k_pci_remove(struct pci_dev *pdev)
+{
+	struct ath10k *ar = pci_get_drvdata(pdev);
+	struct ath10k_pci *ar_pci;
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	if (!ar)
+		return;
+
+	ar_pci = ath10k_pci_priv(ar);
+
+	if (!ar_pci)
+		return;
+
+	tasklet_kill(&ar_pci->msi_fw_err);
+
+	ath10k_core_unregister(ar);
+	ath10k_pci_stop_intr(ar);
+
+	pci_set_drvdata(pdev, NULL);
+	pci_iounmap(pdev, ar_pci->mem);
+	pci_release_region(pdev, BAR_NUM);
+	pci_clear_master(pdev);
+	pci_disable_device(pdev);
+
+	ath10k_core_destroy(ar);
+	kfree(ar_pci);
+}
+
+#if defined(CONFIG_PM_SLEEP)
+
+#define ATH10K_PCI_PM_CONTROL 0x44
+
+static int ath10k_pci_suspend(struct device *device)
+{
+	struct pci_dev *pdev = to_pci_dev(device);
+	struct ath10k *ar = pci_get_drvdata(pdev);
+	struct ath10k_pci *ar_pci;
+	u32 val;
+	int ret, retval;
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	if (!ar)
+		return -ENODEV;
+
+	ar_pci = ath10k_pci_priv(ar);
+	if (!ar_pci)
+		return -ENODEV;
+
+	if (ath10k_core_target_suspend(ar))
+		return -EBUSY;
+
+	ret = wait_event_interruptible_timeout(ar->event_queue,
+						ar->is_target_paused == true,
+						1 * HZ);
+	if (ret < 0) {
+		ath10k_warn("suspend interrupted (%d)\n", ret);
+		retval = ret;
+		goto resume;
+	} else if (ret == 0) {
+		ath10k_warn("suspend timed out - target pause event never came\n");
+		retval = EIO;
+		goto resume;
+	}
+
+	/*
+	 * reset is_target_paused and host can check that in next time,
+	 * or it will always be TRUE and host just skip the waiting
+	 * condition, it causes target assert due to host already
+	 * suspend
+	 */
+	ar->is_target_paused = false;
+
+	pci_read_config_dword(pdev, ATH10K_PCI_PM_CONTROL, &val);
+
+	if ((val & 0x000000ff) != 0x3) {
+		pci_save_state(pdev);
+		pci_disable_device(pdev);
+		pci_write_config_dword(pdev, ATH10K_PCI_PM_CONTROL,
+				       (val & 0xffffff00) | 0x03);
+	}
+
+	return 0;
+resume:
+	ret = ath10k_core_target_resume(ar);
+	if (ret)
+		ath10k_warn("could not resume (%d)\n", ret);
+
+	return retval;
+}
+
+static int ath10k_pci_resume(struct device *device)
+{
+	struct pci_dev *pdev = to_pci_dev(device);
+	struct ath10k *ar = pci_get_drvdata(pdev);
+	struct ath10k_pci *ar_pci;
+	int ret;
+	u32 val;
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	if (!ar)
+		return -ENODEV;
+	ar_pci = ath10k_pci_priv(ar);
+
+	if (!ar_pci)
+		return -ENODEV;
+
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		ath10k_warn("cannot enable PCI device: %d\n", ret);
+		return ret;
+	}
+
+	pci_read_config_dword(pdev, ATH10K_PCI_PM_CONTROL, &val);
+
+	if ((val & 0x000000ff) != 0) {
+		pci_restore_state(pdev);
+		pci_write_config_dword(pdev, ATH10K_PCI_PM_CONTROL,
+				       val & 0xffffff00);
+		/*
+		 * Suspend/Resume resets the PCI configuration space,
+		 * so we have to re-disable the RETRY_TIMEOUT register (0x41)
+		 * to keep PCI Tx retries from interfering with C3 CPU state
+		 */
+		pci_read_config_dword(pdev, 0x40, &val);
+
+		if ((val & 0x0000ff00) != 0)
+			pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
+	}
+
+	ret = ath10k_core_target_resume(ar);
+	if (ret)
+		ath10k_warn("target resume failed: %d\n", ret);
+
+	return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(ath10k_dev_pm_ops,
+			 ath10k_pci_suspend,
+			 ath10k_pci_resume);
+
+#define ATH10K_PCI_PM_OPS (&ath10k_dev_pm_ops)
+
+#else
+
+#define ATH10K_PCI_PM_OPS NULL
+
+#endif /* CONFIG_PM_SLEEP */
+
+MODULE_DEVICE_TABLE(pci, ath10k_pci_id_table);
+
+static struct pci_driver ath10k_pci_driver = {
+	.name = "ath10k_pci",
+	.id_table = ath10k_pci_id_table,
+	.probe = ath10k_pci_probe,
+	.remove = ath10k_pci_remove,
+	.driver.pm = ATH10K_PCI_PM_OPS,
+};
+
+static int __init ath10k_pci_init(void)
+{
+	int ret;
+
+	ret = pci_register_driver(&ath10k_pci_driver);
+	if (ret)
+		ath10k_err("pci_register_driver failed [%d]\n", ret);
+
+	return ret;
+}
+module_init(ath10k_pci_init);
+
+static void __exit ath10k_pci_exit(void)
+{
+	pci_unregister_driver(&ath10k_pci_driver);
+}
+
+module_exit(ath10k_pci_exit);
+
+MODULE_AUTHOR("Qualcomm Atheros");
+MODULE_DESCRIPTION("Driver support for Atheros QCA988X PCIe devices");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_FW_FILE);
+MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_OTP_FILE);
+MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_BOARD_DATA_FILE);
+MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_FW_FILE);
+MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_OTP_FILE);
+MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_BOARD_DATA_FILE);
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
new file mode 100644
index 0000000..d2a055a
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -0,0 +1,355 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _PCI_H_
+#define _PCI_H_
+
+#include <linux/interrupt.h>
+
+#include "hw.h"
+#include "ce.h"
+
+/* FW dump area */
+#define REG_DUMP_COUNT_QCA988X 60
+
+/*
+ * maximum number of bytes that can be handled atomically by DiagRead/DiagWrite
+ */
+#define DIAG_TRANSFER_LIMIT 2048
+
+/*
+ * maximum number of bytes that can be
+ * handled atomically by DiagRead/DiagWrite
+ */
+#define DIAG_TRANSFER_LIMIT 2048
+
+struct bmi_xfer {
+	struct completion done;
+	bool wait_for_resp;
+	u32 resp_len;
+};
+
+struct ath10k_pci_compl {
+	struct list_head list;
+	int send_or_recv;
+	struct ce_state *ce_state;
+	struct hif_ce_pipe_info *pipe_info;
+	void *transfer_context;
+	unsigned int nbytes;
+	unsigned int transfer_id;
+	unsigned int flags;
+};
+
+/* compl_state.send_or_recv */
+#define HIF_CE_COMPLETE_FREE 0
+#define HIF_CE_COMPLETE_SEND 1
+#define HIF_CE_COMPLETE_RECV 2
+
+/*
+ * PCI-specific Target state
+ *
+ * NOTE: Structure is shared between Host software and Target firmware!
+ *
+ * Much of this may be of interest to the Host so
+ * HOST_INTEREST->hi_interconnect_state points here
+ * (and all members are 32-bit quantities in order to
+ * facilitate Host access). In particular, Host software is
+ * required to initialize pipe_cfg_addr and svc_to_pipe_map.
+ */
+struct pcie_state {
+	/* Pipe configuration Target address */
+	/* NB: ce_pipe_config[CE_COUNT] */
+	u32 pipe_cfg_addr;
+
+	/* Service to pipe map Target address */
+	/* NB: service_to_pipe[PIPE_TO_CE_MAP_CN] */
+	u32 svc_to_pipe_map;
+
+	/* number of MSI interrupts requested */
+	u32 msi_requested;
+
+	/* number of MSI interrupts granted */
+	u32 msi_granted;
+
+	/* Message Signalled Interrupt address */
+	u32 msi_addr;
+
+	/* Base data */
+	u32 msi_data;
+
+	/*
+	 * Data for firmware interrupt;
+	 * MSI data for other interrupts are
+	 * in various SoC registers
+	 */
+	u32 msi_fw_intr_data;
+
+	/* PCIE_PWR_METHOD_* */
+	u32 power_mgmt_method;
+
+	/* PCIE_CONFIG_FLAG_* */
+	u32 config_flags;
+};
+
+/* PCIE_CONFIG_FLAG definitions */
+#define PCIE_CONFIG_FLAG_ENABLE_L1  0x0000001
+
+/* Host software's Copy Engine configuration. */
+#define CE_ATTR_FLAGS 0
+
+/*
+ * Configuration information for a Copy Engine pipe.
+ * Passed from Host to Target during startup (one per CE).
+ *
+ * NOTE: Structure is shared between Host software and Target firmware!
+ */
+struct ce_pipe_config {
+	u32 pipenum;
+	u32 pipedir;
+	u32 nentries;
+	u32 nbytes_max;
+	u32 flags;
+	u32 reserved;
+};
+
+/*
+ * Directions for interconnect pipe configuration.
+ * These definitions may be used during configuration and are shared
+ * between Host and Target.
+ *
+ * Pipe Directions are relative to the Host, so PIPEDIR_IN means
+ * "coming IN over air through Target to Host" as with a WiFi Rx operation.
+ * Conversely, PIPEDIR_OUT means "going OUT from Host through Target over air"
+ * as with a WiFi Tx operation. This is somewhat awkward for the "middle-man"
+ * Target since things that are "PIPEDIR_OUT" are coming IN to the Target
+ * over the interconnect.
+ */
+#define PIPEDIR_NONE    0
+#define PIPEDIR_IN      1  /* Target-->Host, WiFi Rx direction */
+#define PIPEDIR_OUT     2  /* Host->Target, WiFi Tx direction */
+#define PIPEDIR_INOUT   3  /* bidirectional */
+
+/* Establish a mapping between a service/direction and a pipe. */
+struct service_to_pipe {
+	u32 service_id;
+	u32 pipedir;
+	u32 pipenum;
+};
+
+enum ath10k_pci_features {
+	ATH10K_PCI_FEATURE_MSI_X		= 0,
+	ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND	= 1,
+
+	/* keep last */
+	ATH10K_PCI_FEATURE_COUNT
+};
+
+/* Per-pipe state. */
+struct hif_ce_pipe_info {
+	/* Handle of underlying Copy Engine */
+	struct ce_state *ce_hdl;
+
+	/* Our pipe number; facilitiates use of pipe_info ptrs. */
+	u8 pipe_num;
+
+	/* Convenience back pointer to hif_ce_state. */
+	struct ath10k *hif_ce_state;
+
+	size_t buf_sz;
+
+	/* protects compl_free and num_send_allowed */
+	spinlock_t pipe_lock;
+
+	/* List of free CE completion slots */
+	struct list_head compl_free;
+
+	/* Limit the number of outstanding send requests. */
+	int num_sends_allowed;
+
+	struct ath10k_pci *ar_pci;
+	struct tasklet_struct intr;
+};
+
+struct ath10k_pci {
+	struct pci_dev *pdev;
+	struct device *dev;
+	struct ath10k *ar;
+	void __iomem *mem;
+	int cacheline_sz;
+
+	DECLARE_BITMAP(features, ATH10K_PCI_FEATURE_COUNT);
+
+	/*
+	 * Number of MSI interrupts granted, 0 --> using legacy PCI line
+	 * interrupts.
+	 */
+	int num_msi_intrs;
+
+	struct tasklet_struct intr_tq;
+	struct tasklet_struct msi_fw_err;
+
+	/* Number of Copy Engines supported */
+	unsigned int ce_count;
+
+	int started;
+
+	atomic_t keep_awake_count;
+	bool verified_awake;
+
+	/* List of CE completions to be processed */
+	struct list_head compl_process;
+
+	/* protects compl_processing and compl_process */
+	spinlock_t compl_lock;
+
+	bool compl_processing;
+
+	struct hif_ce_pipe_info pipe_info[CE_COUNT_MAX];
+
+	struct ath10k_hif_cb msg_callbacks_current;
+
+	/* Target address used to signal a pending firmware event */
+	u32 fw_indicator_address;
+
+	/* Copy Engine used for Diagnostic Accesses */
+	struct ce_state *ce_diag;
+
+	/* FIXME: document what this really protects */
+	spinlock_t ce_lock;
+
+	/* Map CE id to ce_state */
+	struct ce_state *ce_id_to_state[CE_COUNT_MAX];
+
+	/* makes sure that dummy reads are atomic */
+	spinlock_t hw_v1_workaround_lock;
+};
+
+static inline struct ath10k_pci *ath10k_pci_priv(struct ath10k *ar)
+{
+	return ar->hif.priv;
+}
+
+static inline u32 ath10k_pci_reg_read32(void __iomem *mem, u32 addr)
+{
+	return ioread32(mem + PCIE_LOCAL_BASE_ADDRESS + addr);
+}
+
+static inline void ath10k_pci_reg_write32(void __iomem *mem, u32 addr, u32 val)
+{
+	iowrite32(val, mem + PCIE_LOCAL_BASE_ADDRESS + addr);
+}
+
+#define ATH_PCI_RESET_WAIT_MAX 10 /* ms */
+#define PCIE_WAKE_TIMEOUT 5000	/* 5ms */
+
+#define BAR_NUM 0
+
+#define CDC_WAR_MAGIC_STR   0xceef0000
+#define CDC_WAR_DATA_CE     4
+
+/*
+ * TODO: Should be a function call specific to each Target-type.
+ * This convoluted macro converts from Target CPU Virtual Address Space to CE
+ * Address Space. As part of this process, we conservatively fetch the current
+ * PCIE_BAR. MOST of the time, this should match the upper bits of PCI space
+ * for this device; but that's not guaranteed.
+ */
+#define TARG_CPU_SPACE_TO_CE_SPACE(ar, pci_addr, addr)			\
+	(((ioread32((pci_addr)+(SOC_CORE_BASE_ADDRESS|			\
+	  CORE_CTRL_ADDRESS)) & 0x7ff) << 21) |				\
+	 0x100000 | ((addr) & 0xfffff))
+
+/* Wait up to this many Ms for a Diagnostic Access CE operation to complete */
+#define DIAG_ACCESS_CE_TIMEOUT_MS 10
+
+/*
+ * This API allows the Host to access Target registers directly
+ * and relatively efficiently over PCIe.
+ * This allows the Host to avoid extra overhead associated with
+ * sending a message to firmware and waiting for a response message
+ * from firmware, as is done on other interconnects.
+ *
+ * Yet there is some complexity with direct accesses because the
+ * Target's power state is not known a priori. The Host must issue
+ * special PCIe reads/writes in order to explicitly wake the Target
+ * and to verify that it is awake and will remain awake.
+ *
+ * Usage:
+ *
+ *   Use ath10k_pci_read32 and ath10k_pci_write32 to access Target space.
+ *   These calls must be bracketed by ath10k_pci_wake and
+ *   ath10k_pci_sleep.  A single BEGIN/END pair is adequate for
+ *   multiple READ/WRITE operations.
+ *
+ *   Use ath10k_pci_wake to put the Target in a state in
+ *   which it is legal for the Host to directly access it. This
+ *   may involve waking the Target from a low power state, which
+ *   may take up to 2Ms!
+ *
+ *   Use ath10k_pci_sleep to tell the Target that as far as
+ *   this code path is concerned, it no longer needs to remain
+ *   directly accessible.  BEGIN/END is under a reference counter;
+ *   multiple code paths may issue BEGIN/END on a single targid.
+ */
+static inline void ath10k_pci_write32(struct ath10k *ar, u32 offset,
+				      u32 value)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	void __iomem *addr = ar_pci->mem;
+
+	if (test_bit(ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND, ar_pci->features)) {
+		unsigned long irq_flags;
+
+		spin_lock_irqsave(&ar_pci->hw_v1_workaround_lock, irq_flags);
+
+		ioread32(addr+offset+4); /* 3rd read prior to write */
+		ioread32(addr+offset+4); /* 2nd read prior to write */
+		ioread32(addr+offset+4); /* 1st read prior to write */
+		iowrite32(value, addr+offset);
+
+		spin_unlock_irqrestore(&ar_pci->hw_v1_workaround_lock,
+				       irq_flags);
+	} else {
+		iowrite32(value, addr+offset);
+	}
+}
+
+static inline u32 ath10k_pci_read32(struct ath10k *ar, u32 offset)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	return ioread32(ar_pci->mem + offset);
+}
+
+extern unsigned int ath10k_target_ps;
+
+void ath10k_do_pci_wake(struct ath10k *ar);
+void ath10k_do_pci_sleep(struct ath10k *ar);
+
+static inline void ath10k_pci_wake(struct ath10k *ar)
+{
+	if (ath10k_target_ps)
+		ath10k_do_pci_wake(ar);
+}
+
+static inline void ath10k_pci_sleep(struct ath10k *ar)
+{
+	if (ath10k_target_ps)
+		ath10k_do_pci_sleep(ar);
+}
+
+#endif /* _PCI_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/rx_desc.h b/drivers/net/wireless/ath/ath10k/rx_desc.h
new file mode 100644
index 0000000..bfec6c8
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/rx_desc.h
@@ -0,0 +1,990 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _RX_DESC_H_
+#define _RX_DESC_H_
+
+enum rx_attention_flags {
+	RX_ATTENTION_FLAGS_FIRST_MPDU          = 1 << 0,
+	RX_ATTENTION_FLAGS_LAST_MPDU           = 1 << 1,
+	RX_ATTENTION_FLAGS_MCAST_BCAST         = 1 << 2,
+	RX_ATTENTION_FLAGS_PEER_IDX_INVALID    = 1 << 3,
+	RX_ATTENTION_FLAGS_PEER_IDX_TIMEOUT    = 1 << 4,
+	RX_ATTENTION_FLAGS_POWER_MGMT          = 1 << 5,
+	RX_ATTENTION_FLAGS_NON_QOS             = 1 << 6,
+	RX_ATTENTION_FLAGS_NULL_DATA           = 1 << 7,
+	RX_ATTENTION_FLAGS_MGMT_TYPE           = 1 << 8,
+	RX_ATTENTION_FLAGS_CTRL_TYPE           = 1 << 9,
+	RX_ATTENTION_FLAGS_MORE_DATA           = 1 << 10,
+	RX_ATTENTION_FLAGS_EOSP                = 1 << 11,
+	RX_ATTENTION_FLAGS_U_APSD_TRIGGER      = 1 << 12,
+	RX_ATTENTION_FLAGS_FRAGMENT            = 1 << 13,
+	RX_ATTENTION_FLAGS_ORDER               = 1 << 14,
+	RX_ATTENTION_FLAGS_CLASSIFICATION      = 1 << 15,
+	RX_ATTENTION_FLAGS_OVERFLOW_ERR        = 1 << 16,
+	RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR     = 1 << 17,
+	RX_ATTENTION_FLAGS_TCP_UDP_CHKSUM_FAIL = 1 << 18,
+	RX_ATTENTION_FLAGS_IP_CHKSUM_FAIL      = 1 << 19,
+	RX_ATTENTION_FLAGS_SA_IDX_INVALID      = 1 << 20,
+	RX_ATTENTION_FLAGS_DA_IDX_INVALID      = 1 << 21,
+	RX_ATTENTION_FLAGS_SA_IDX_TIMEOUT      = 1 << 22,
+	RX_ATTENTION_FLAGS_DA_IDX_TIMEOUT      = 1 << 23,
+	RX_ATTENTION_FLAGS_ENCRYPT_REQUIRED    = 1 << 24,
+	RX_ATTENTION_FLAGS_DIRECTED            = 1 << 25,
+	RX_ATTENTION_FLAGS_BUFFER_FRAGMENT     = 1 << 26,
+	RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR     = 1 << 27,
+	RX_ATTENTION_FLAGS_TKIP_MIC_ERR        = 1 << 28,
+	RX_ATTENTION_FLAGS_DECRYPT_ERR         = 1 << 29,
+	RX_ATTENTION_FLAGS_FCS_ERR             = 1 << 30,
+	RX_ATTENTION_FLAGS_MSDU_DONE           = 1 << 31,
+};
+
+struct rx_attention {
+	__le32 flags; /* %RX_ATTENTION_FLAGS_ */
+} __packed;
+
+/*
+ * first_mpdu
+ *		Indicates the first MSDU of the PPDU.  If both first_mpdu
+ *		and last_mpdu are set in the MSDU then this is a not an
+ *		A-MPDU frame but a stand alone MPDU.  Interior MPDU in an
+ *		A-MPDU shall have both first_mpdu and last_mpdu bits set to
+ *		0.  The PPDU start status will only be valid when this bit
+ *		is set.
+ *
+ * last_mpdu
+ *		Indicates the last MSDU of the last MPDU of the PPDU.  The
+ *		PPDU end status will only be valid when this bit is set.
+ *
+ * mcast_bcast
+ *		Multicast / broadcast indicator.  Only set when the MAC
+ *		address 1 bit 0 is set indicating mcast/bcast and the BSSID
+ *		matches one of the 4 BSSID registers. Only set when
+ *		first_msdu is set.
+ *
+ * peer_idx_invalid
+ *		Indicates no matching entries within the the max search
+ *		count.  Only set when first_msdu is set.
+ *
+ * peer_idx_timeout
+ *		Indicates an unsuccessful search for the peer index due to
+ *		timeout.  Only set when first_msdu is set.
+ *
+ * power_mgmt
+ *		Power management bit set in the 802.11 header.  Only set
+ *		when first_msdu is set.
+ *
+ * non_qos
+ *		Set if packet is not a non-QoS data frame.  Only set when
+ *		first_msdu is set.
+ *
+ * null_data
+ *		Set if frame type indicates either null data or QoS null
+ *		data format.  Only set when first_msdu is set.
+ *
+ * mgmt_type
+ *		Set if packet is a management packet.  Only set when
+ *		first_msdu is set.
+ *
+ * ctrl_type
+ *		Set if packet is a control packet.  Only set when first_msdu
+ *		is set.
+ *
+ * more_data
+ *		Set if more bit in frame control is set.  Only set when
+ *		first_msdu is set.
+ *
+ * eosp
+ *		Set if the EOSP (end of service period) bit in the QoS
+ *		control field is set.  Only set when first_msdu is set.
+ *
+ * u_apsd_trigger
+ *		Set if packet is U-APSD trigger.  Key table will have bits
+ *		per TID to indicate U-APSD trigger.
+ *
+ * fragment
+ *		Indicates that this is an 802.11 fragment frame.  This is
+ *		set when either the more_frag bit is set in the frame
+ *		control or the fragment number is not zero.  Only set when
+ *		first_msdu is set.
+ *
+ * order
+ *		Set if the order bit in the frame control is set.  Only set
+ *		when first_msdu is set.
+ *
+ * classification
+ *		Indicates that this status has a corresponding MSDU that
+ *		requires FW processing.  The OLE will have classification
+ *		ring mask registers which will indicate the ring(s) for
+ *		packets and descriptors which need FW attention.
+ *
+ * overflow_err
+ *		PCU Receive FIFO does not have enough space to store the
+ *		full receive packet.  Enough space is reserved in the
+ *		receive FIFO for the status is written.  This MPDU remaining
+ *		packets in the PPDU will be filtered and no Ack response
+ *		will be transmitted.
+ *
+ * msdu_length_err
+ *		Indicates that the MSDU length from the 802.3 encapsulated
+ *		length field extends beyond the MPDU boundary.
+ *
+ * tcp_udp_chksum_fail
+ *		Indicates that the computed checksum (tcp_udp_chksum) did
+ *		not match the checksum in the TCP/UDP header.
+ *
+ * ip_chksum_fail
+ *		Indicates that the computed checksum did not match the
+ *		checksum in the IP header.
+ *
+ * sa_idx_invalid
+ *		Indicates no matching entry was found in the address search
+ *		table for the source MAC address.
+ *
+ * da_idx_invalid
+ *		Indicates no matching entry was found in the address search
+ *		table for the destination MAC address.
+ *
+ * sa_idx_timeout
+ *		Indicates an unsuccessful search for the source MAC address
+ *		due to the expiring of the search timer.
+ *
+ * da_idx_timeout
+ *		Indicates an unsuccessful search for the destination MAC
+ *		address due to the expiring of the search timer.
+ *
+ * encrypt_required
+ *		Indicates that this data type frame is not encrypted even if
+ *		the policy for this MPDU requires encryption as indicated in
+ *		the peer table key type.
+ *
+ * directed
+ *		MPDU is a directed packet which means that the RA matched
+ *		our STA addresses.  In proxySTA it means that the TA matched
+ *		an entry in our address search table with the corresponding
+ *		'no_ack' bit is the address search entry cleared.
+ *
+ * buffer_fragment
+ *		Indicates that at least one of the rx buffers has been
+ *		fragmented.  If set the FW should look at the rx_frag_info
+ *		descriptor described below.
+ *
+ * mpdu_length_err
+ *		Indicates that the MPDU was pre-maturely terminated
+ *		resulting in a truncated MPDU.  Don't trust the MPDU length
+ *		field.
+ *
+ * tkip_mic_err
+ *		Indicates that the MPDU Michael integrity check failed
+ *
+ * decrypt_err
+ *		Indicates that the MPDU decrypt integrity check failed
+ *
+ * fcs_err
+ *		Indicates that the MPDU FCS check failed
+ *
+ * msdu_done
+ *		If set indicates that the RX packet data, RX header data, RX
+ *		PPDU start descriptor, RX MPDU start/end descriptor, RX MSDU
+ *		start/end descriptors and RX Attention descriptor are all
+ *		valid.  This bit must be in the last octet of the
+ *		descriptor.
+ */
+
+struct rx_frag_info {
+	u8 ring0_more_count;
+	u8 ring1_more_count;
+	u8 ring2_more_count;
+	u8 ring3_more_count;
+} __packed;
+
+/*
+ * ring0_more_count
+ *		Indicates the number of more buffers associated with RX DMA
+ *		ring 0.  Field is filled in by the RX_DMA.
+ *
+ * ring1_more_count
+ *		Indicates the number of more buffers associated with RX DMA
+ *		ring 1. Field is filled in by the RX_DMA.
+ *
+ * ring2_more_count
+ *		Indicates the number of more buffers associated with RX DMA
+ *		ring 2. Field is filled in by the RX_DMA.
+ *
+ * ring3_more_count
+ *		Indicates the number of more buffers associated with RX DMA
+ *		ring 3. Field is filled in by the RX_DMA.
+ */
+
+enum htt_rx_mpdu_encrypt_type {
+	HTT_RX_MPDU_ENCRYPT_WEP40            = 0,
+	HTT_RX_MPDU_ENCRYPT_WEP104           = 1,
+	HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC = 2,
+	HTT_RX_MPDU_ENCRYPT_WEP128           = 3,
+	HTT_RX_MPDU_ENCRYPT_TKIP_WPA         = 4,
+	HTT_RX_MPDU_ENCRYPT_WAPI             = 5,
+	HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2     = 6,
+	HTT_RX_MPDU_ENCRYPT_NONE             = 7,
+};
+
+#define RX_MPDU_START_INFO0_PEER_IDX_MASK     0x000007ff
+#define RX_MPDU_START_INFO0_PEER_IDX_LSB      0
+#define RX_MPDU_START_INFO0_SEQ_NUM_MASK      0x0fff0000
+#define RX_MPDU_START_INFO0_SEQ_NUM_LSB       16
+#define RX_MPDU_START_INFO0_ENCRYPT_TYPE_MASK 0xf0000000
+#define RX_MPDU_START_INFO0_ENCRYPT_TYPE_LSB  28
+#define RX_MPDU_START_INFO0_FROM_DS           (1 << 11)
+#define RX_MPDU_START_INFO0_TO_DS             (1 << 12)
+#define RX_MPDU_START_INFO0_ENCRYPTED         (1 << 13)
+#define RX_MPDU_START_INFO0_RETRY             (1 << 14)
+#define RX_MPDU_START_INFO0_TXBF_H_INFO       (1 << 15)
+
+#define RX_MPDU_START_INFO1_TID_MASK 0xf0000000
+#define RX_MPDU_START_INFO1_TID_LSB  28
+#define RX_MPDU_START_INFO1_DIRECTED (1 << 16)
+
+struct rx_mpdu_start {
+	__le32 info0;
+	union {
+		struct {
+			__le32 pn31_0;
+			__le32 info1; /* %RX_MPDU_START_INFO1_ */
+		} __packed;
+		struct {
+			u8 pn[6];
+		} __packed;
+	} __packed;
+} __packed;
+
+/*
+ * peer_idx
+ *		The index of the address search table which associated with
+ *		the peer table entry corresponding to this MPDU.  Only valid
+ *		when first_msdu is set.
+ *
+ * fr_ds
+ *		Set if the from DS bit is set in the frame control.  Only
+ *		valid when first_msdu is set.
+ *
+ * to_ds
+ *		Set if the to DS bit is set in the frame control.  Only
+ *		valid when first_msdu is set.
+ *
+ * encrypted
+ *		Protected bit from the frame control.  Only valid when
+ *		first_msdu is set.
+ *
+ * retry
+ *		Retry bit from the frame control.  Only valid when
+ *		first_msdu is set.
+ *
+ * txbf_h_info
+ *		The MPDU data will contain H information.  Primarily used
+ *		for debug.
+ *
+ * seq_num
+ *		The sequence number from the 802.11 header.  Only valid when
+ *		first_msdu is set.
+ *
+ * encrypt_type
+ *		Indicates type of decrypt cipher used (as defined in the
+ *		peer table)
+ *		0: WEP40
+ *		1: WEP104
+ *		2: TKIP without MIC
+ *		3: WEP128
+ *		4: TKIP (WPA)
+ *		5: WAPI
+ *		6: AES-CCM (WPA2)
+ *		7: No cipher
+ *		Only valid when first_msdu_is set
+ *
+ * pn_31_0
+ *		Bits [31:0] of the PN number extracted from the IV field
+ *		WEP: IV = {key_id_octet, pn2, pn1, pn0}.  Only pn[23:0] is
+ *		valid.
+ *		TKIP: IV = {pn5, pn4, pn3, pn2, key_id_octet, pn0,
+ *		WEPSeed[1], pn1}.  Only pn[47:0] is valid.
+ *		AES-CCM: IV = {pn5, pn4, pn3, pn2, key_id_octet, 0x0, pn1,
+ *		pn0}.  Only pn[47:0] is valid.
+ *		WAPI: IV = {key_id_octet, 0x0, pn15, pn14, pn13, pn12, pn11,
+ *		pn10, pn9, pn8, pn7, pn6, pn5, pn4, pn3, pn2, pn1, pn0}.
+ *		The ext_wapi_pn[127:48] in the rx_msdu_misc descriptor and
+ *		pn[47:0] are valid.
+ *		Only valid when first_msdu is set.
+ *
+ * pn_47_32
+ *		Bits [47:32] of the PN number.   See description for
+ *		pn_31_0.  The remaining PN fields are in the rx_msdu_end
+ *		descriptor
+ *
+ * pn
+ *		Use this field to access the pn without worrying about
+ *		byte-order and bitmasking/bitshifting.
+ *
+ * directed
+ *		See definition in RX attention descriptor
+ *
+ * reserved_2
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ *
+ * tid
+ *		The TID field in the QoS control field
+ */
+
+#define RX_MPDU_END_INFO0_RESERVED_0_MASK     0x00001fff
+#define RX_MPDU_END_INFO0_RESERVED_0_LSB      0
+#define RX_MPDU_END_INFO0_POST_DELIM_CNT_MASK 0x0fff0000
+#define RX_MPDU_END_INFO0_POST_DELIM_CNT_LSB  16
+#define RX_MPDU_END_INFO0_OVERFLOW_ERR        (1 << 13)
+#define RX_MPDU_END_INFO0_LAST_MPDU           (1 << 14)
+#define RX_MPDU_END_INFO0_POST_DELIM_ERR      (1 << 15)
+#define RX_MPDU_END_INFO0_MPDU_LENGTH_ERR     (1 << 28)
+#define RX_MPDU_END_INFO0_TKIP_MIC_ERR        (1 << 29)
+#define RX_MPDU_END_INFO0_DECRYPT_ERR         (1 << 30)
+#define RX_MPDU_END_INFO0_FCS_ERR             (1 << 31)
+
+struct rx_mpdu_end {
+	__le32 info0;
+} __packed;
+
+/*
+ * reserved_0
+ *		Reserved
+ *
+ * overflow_err
+ *		PCU Receive FIFO does not have enough space to store the
+ *		full receive packet.  Enough space is reserved in the
+ *		receive FIFO for the status is written.  This MPDU remaining
+ *		packets in the PPDU will be filtered and no Ack response
+ *		will be transmitted.
+ *
+ * last_mpdu
+ *		Indicates that this is the last MPDU of a PPDU.
+ *
+ * post_delim_err
+ *		Indicates that a delimiter FCS error occurred after this
+ *		MPDU before the next MPDU.  Only valid when last_msdu is
+ *		set.
+ *
+ * post_delim_cnt
+ *		Count of the delimiters after this MPDU.  This requires the
+ *		last MPDU to be held until all the EOF descriptors have been
+ *		received.  This may be inefficient in the future when
+ *		ML-MIMO is used.  Only valid when last_mpdu is set.
+ *
+ * mpdu_length_err
+ *		See definition in RX attention descriptor
+ *
+ * tkip_mic_err
+ *		See definition in RX attention descriptor
+ *
+ * decrypt_err
+ *		See definition in RX attention descriptor
+ *
+ * fcs_err
+ *		See definition in RX attention descriptor
+ */
+
+#define RX_MSDU_START_INFO0_MSDU_LENGTH_MASK    0x00003fff
+#define RX_MSDU_START_INFO0_MSDU_LENGTH_LSB     0
+#define RX_MSDU_START_INFO0_IP_OFFSET_MASK      0x000fc000
+#define RX_MSDU_START_INFO0_IP_OFFSET_LSB       14
+#define RX_MSDU_START_INFO0_RING_MASK_MASK      0x00f00000
+#define RX_MSDU_START_INFO0_RING_MASK_LSB       20
+#define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_MASK 0x7f000000
+#define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_LSB  24
+
+#define RX_MSDU_START_INFO1_MSDU_NUMBER_MASK    0x000000ff
+#define RX_MSDU_START_INFO1_MSDU_NUMBER_LSB     0
+#define RX_MSDU_START_INFO1_DECAP_FORMAT_MASK   0x00000300
+#define RX_MSDU_START_INFO1_DECAP_FORMAT_LSB    8
+#define RX_MSDU_START_INFO1_SA_IDX_MASK         0x07ff0000
+#define RX_MSDU_START_INFO1_SA_IDX_LSB          16
+#define RX_MSDU_START_INFO1_IPV4_PROTO          (1 << 10)
+#define RX_MSDU_START_INFO1_IPV6_PROTO          (1 << 11)
+#define RX_MSDU_START_INFO1_TCP_PROTO           (1 << 12)
+#define RX_MSDU_START_INFO1_UDP_PROTO           (1 << 13)
+#define RX_MSDU_START_INFO1_IP_FRAG             (1 << 14)
+#define RX_MSDU_START_INFO1_TCP_ONLY_ACK        (1 << 15)
+
+enum rx_msdu_decap_format {
+	RX_MSDU_DECAP_RAW           = 0,
+	RX_MSDU_DECAP_NATIVE_WIFI   = 1,
+	RX_MSDU_DECAP_ETHERNET2_DIX = 2,
+	RX_MSDU_DECAP_8023_SNAP_LLC = 3
+};
+
+struct rx_msdu_start {
+	__le32 info0; /* %RX_MSDU_START_INFO0_ */
+	__le32 flow_id_crc;
+	__le32 info1; /* %RX_MSDU_START_INFO1_ */
+} __packed;
+
+/*
+ * msdu_length
+ *		MSDU length in bytes after decapsulation.  This field is
+ *		still valid for MPDU frames without A-MSDU.  It still
+ *		represents MSDU length after decapsulation
+ *
+ * ip_offset
+ *		Indicates the IP offset in bytes from the start of the
+ *		packet after decapsulation.  Only valid if ipv4_proto or
+ *		ipv6_proto is set.
+ *
+ * ring_mask
+ *		Indicates the destination RX rings for this MSDU.
+ *
+ * tcp_udp_offset
+ *		Indicates the offset in bytes to the start of TCP or UDP
+ *		header from the start of the IP header after decapsulation.
+ *		Only valid if tcp_prot or udp_prot is set.  The value 0
+ *		indicates that the offset is longer than 127 bytes.
+ *
+ * reserved_0c
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ *
+ * flow_id_crc
+ *		The flow_id_crc runs CRC32 on the following information:
+ *		IPv4 option: dest_addr[31:0], src_addr [31:0], {24'b0,
+ *		protocol[7:0]}.
+ *		IPv6 option: dest_addr[127:0], src_addr [127:0], {24'b0,
+ *		next_header[7:0]}
+ *		UDP case: sort_port[15:0], dest_port[15:0]
+ *		TCP case: sort_port[15:0], dest_port[15:0],
+ *		{header_length[3:0], 6'b0, flags[5:0], window_size[15:0]},
+ *		{16'b0, urgent_ptr[15:0]}, all options except 32-bit
+ *		timestamp.
+ *
+ * msdu_number
+ *		Indicates the MSDU number within a MPDU.  This value is
+ *		reset to zero at the start of each MPDU.  If the number of
+ *		MSDU exceeds 255 this number will wrap using modulo 256.
+ *
+ * decap_format
+ *		Indicates the format after decapsulation:
+ *		0: RAW: No decapsulation
+ *		1: Native WiFi
+ *		2: Ethernet 2 (DIX)
+ *		3: 802.3 (SNAP/LLC)
+ *
+ * ipv4_proto
+ *		Set if L2 layer indicates IPv4 protocol.
+ *
+ * ipv6_proto
+ *		Set if L2 layer indicates IPv6 protocol.
+ *
+ * tcp_proto
+ *		Set if the ipv4_proto or ipv6_proto are set and the IP
+ *		protocol indicates TCP.
+ *
+ * udp_proto
+ *		Set if the ipv4_proto or ipv6_proto are set and the IP
+ *			protocol indicates UDP.
+ *
+ * ip_frag
+ *		Indicates that either the IP More frag bit is set or IP frag
+ *		number is non-zero.  If set indicates that this is a
+ *		fragmented IP packet.
+ *
+ * tcp_only_ack
+ *		Set if only the TCP Ack bit is set in the TCP flags and if
+ *		the TCP payload is 0.
+ *
+ * sa_idx
+ *		The offset in the address table which matches the MAC source
+ *		address.
+ *
+ * reserved_2b
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ */
+
+#define RX_MSDU_END_INFO0_REPORTED_MPDU_LENGTH_MASK 0x00003fff
+#define RX_MSDU_END_INFO0_REPORTED_MPDU_LENGTH_LSB  0
+#define RX_MSDU_END_INFO0_FIRST_MSDU                (1 << 14)
+#define RX_MSDU_END_INFO0_LAST_MSDU                 (1 << 15)
+#define RX_MSDU_END_INFO0_PRE_DELIM_ERR             (1 << 30)
+#define RX_MSDU_END_INFO0_RESERVED_3B               (1 << 31)
+
+struct rx_msdu_end {
+	__le16 ip_hdr_cksum;
+	__le16 tcp_hdr_cksum;
+	u8 key_id_octet;
+	u8 classification_filter;
+	u8 wapi_pn[10];
+	__le32 info0;
+} __packed;
+
+/*
+ *ip_hdr_chksum
+ *		This can include the IP header checksum or the pseudo header
+ *		checksum used by TCP/UDP checksum.
+ *
+ *tcp_udp_chksum
+ *		The value of the computed TCP/UDP checksum.  A mode bit
+ *		selects whether this checksum is the full checksum or the
+ *		partial checksum which does not include the pseudo header.
+ *
+ *key_id_octet
+ *		The key ID octet from the IV.  Only valid when first_msdu is
+ *		set.
+ *
+ *classification_filter
+ *		Indicates the number classification filter rule
+ *
+ *ext_wapi_pn_63_48
+ *		Extension PN (packet number) which is only used by WAPI.
+ *		This corresponds to WAPI PN bits [63:48] (pn6 and pn7).  The
+ *		WAPI PN bits [63:0] are in the pn field of the rx_mpdu_start
+ *		descriptor.
+ *
+ *ext_wapi_pn_95_64
+ *		Extension PN (packet number) which is only used by WAPI.
+ *		This corresponds to WAPI PN bits [95:64] (pn8, pn9, pn10 and
+ *		pn11).
+ *
+ *ext_wapi_pn_127_96
+ *		Extension PN (packet number) which is only used by WAPI.
+ *		This corresponds to WAPI PN bits [127:96] (pn12, pn13, pn14,
+ *		pn15).
+ *
+ *reported_mpdu_length
+ *		MPDU length before decapsulation.  Only valid when
+ *		first_msdu is set.  This field is taken directly from the
+ *		length field of the A-MPDU delimiter or the preamble length
+ *		field for non-A-MPDU frames.
+ *
+ *first_msdu
+ *		Indicates the first MSDU of A-MSDU.  If both first_msdu and
+ *		last_msdu are set in the MSDU then this is a non-aggregated
+ *		MSDU frame: normal MPDU.  Interior MSDU in an A-MSDU shall
+ *		have both first_mpdu and last_mpdu bits set to 0.
+ *
+ *last_msdu
+ *		Indicates the last MSDU of the A-MSDU.  MPDU end status is
+ *		only valid when last_msdu is set.
+ *
+ *reserved_3a
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ *
+ *pre_delim_err
+ *		Indicates that the first delimiter had a FCS failure.  Only
+ *		valid when first_mpdu and first_msdu are set.
+ *
+ *reserved_3b
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ */
+
+#define RX_PPDU_START_SIG_RATE_SELECT_OFDM 0
+#define RX_PPDU_START_SIG_RATE_SELECT_CCK  1
+
+#define RX_PPDU_START_SIG_RATE_OFDM_48 0
+#define RX_PPDU_START_SIG_RATE_OFDM_24 1
+#define RX_PPDU_START_SIG_RATE_OFDM_12 2
+#define RX_PPDU_START_SIG_RATE_OFDM_6  3
+#define RX_PPDU_START_SIG_RATE_OFDM_54 4
+#define RX_PPDU_START_SIG_RATE_OFDM_36 5
+#define RX_PPDU_START_SIG_RATE_OFDM_18 6
+#define RX_PPDU_START_SIG_RATE_OFDM_9  7
+
+#define RX_PPDU_START_SIG_RATE_CCK_LP_11  0
+#define RX_PPDU_START_SIG_RATE_CCK_LP_5_5 1
+#define RX_PPDU_START_SIG_RATE_CCK_LP_2   2
+#define RX_PPDU_START_SIG_RATE_CCK_LP_1   3
+#define RX_PPDU_START_SIG_RATE_CCK_SP_11  4
+#define RX_PPDU_START_SIG_RATE_CCK_SP_5_5 5
+#define RX_PPDU_START_SIG_RATE_CCK_SP_2   6
+
+#define HTT_RX_PPDU_START_PREAMBLE_LEGACY        0x04
+#define HTT_RX_PPDU_START_PREAMBLE_HT            0x08
+#define HTT_RX_PPDU_START_PREAMBLE_HT_WITH_TXBF  0x09
+#define HTT_RX_PPDU_START_PREAMBLE_VHT           0x0C
+#define HTT_RX_PPDU_START_PREAMBLE_VHT_WITH_TXBF 0x0D
+
+#define RX_PPDU_START_INFO0_IS_GREENFIELD (1 << 0)
+
+#define RX_PPDU_START_INFO1_L_SIG_RATE_MASK    0x0000000f
+#define RX_PPDU_START_INFO1_L_SIG_RATE_LSB     0
+#define RX_PPDU_START_INFO1_L_SIG_LENGTH_MASK  0x0001ffe0
+#define RX_PPDU_START_INFO1_L_SIG_LENGTH_LSB   5
+#define RX_PPDU_START_INFO1_L_SIG_TAIL_MASK    0x00fc0000
+#define RX_PPDU_START_INFO1_L_SIG_TAIL_LSB     18
+#define RX_PPDU_START_INFO1_PREAMBLE_TYPE_MASK 0xff000000
+#define RX_PPDU_START_INFO1_PREAMBLE_TYPE_LSB  24
+#define RX_PPDU_START_INFO1_L_SIG_RATE_SELECT  (1 << 4)
+#define RX_PPDU_START_INFO1_L_SIG_PARITY       (1 << 17)
+
+#define RX_PPDU_START_INFO2_HT_SIG_VHT_SIG_A_1_MASK 0x00ffffff
+#define RX_PPDU_START_INFO2_HT_SIG_VHT_SIG_A_1_LSB  0
+
+#define RX_PPDU_START_INFO3_HT_SIG_VHT_SIG_A_2_MASK 0x00ffffff
+#define RX_PPDU_START_INFO3_HT_SIG_VHT_SIG_A_2_LSB  0
+#define RX_PPDU_START_INFO3_TXBF_H_INFO             (1 << 24)
+
+#define RX_PPDU_START_INFO4_VHT_SIG_B_MASK 0x1fffffff
+#define RX_PPDU_START_INFO4_VHT_SIG_B_LSB  0
+
+#define RX_PPDU_START_INFO5_SERVICE_MASK 0x0000ffff
+#define RX_PPDU_START_INFO5_SERVICE_LSB  0
+
+struct rx_ppdu_start {
+	struct {
+		u8 pri20_mhz;
+		u8 ext20_mhz;
+		u8 ext40_mhz;
+		u8 ext80_mhz;
+	} rssi_chains[4];
+	u8 rssi_comb;
+	__le16 rsvd0;
+	u8 info0; /* %RX_PPDU_START_INFO0_ */
+	__le32 info1; /* %RX_PPDU_START_INFO1_ */
+	__le32 info2; /* %RX_PPDU_START_INFO2_ */
+	__le32 info3; /* %RX_PPDU_START_INFO3_ */
+	__le32 info4; /* %RX_PPDU_START_INFO4_ */
+	__le32 info5; /* %RX_PPDU_START_INFO5_ */
+} __packed;
+
+/*
+ * rssi_chain0_pri20
+ *		RSSI of RX PPDU on chain 0 of primary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain0_sec20
+ *		RSSI of RX PPDU on chain 0 of secondary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain0_sec40
+ *		RSSI of RX PPDU on chain 0 of secondary 40 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain0_sec80
+ *		RSSI of RX PPDU on chain 0 of secondary 80 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain1_pri20
+ *		RSSI of RX PPDU on chain 1 of primary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain1_sec20
+ *		RSSI of RX PPDU on chain 1 of secondary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain1_sec40
+ *		RSSI of RX PPDU on chain 1 of secondary 40 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain1_sec80
+ *		RSSI of RX PPDU on chain 1 of secondary 80 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain2_pri20
+ *		RSSI of RX PPDU on chain 2 of primary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain2_sec20
+ *		RSSI of RX PPDU on chain 2 of secondary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain2_sec40
+ *		RSSI of RX PPDU on chain 2 of secondary 40 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain2_sec80
+ *		RSSI of RX PPDU on chain 2 of secondary 80 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain3_pri20
+ *		RSSI of RX PPDU on chain 3 of primary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain3_sec20
+ *		RSSI of RX PPDU on chain 3 of secondary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain3_sec40
+ *		RSSI of RX PPDU on chain 3 of secondary 40 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain3_sec80
+ *		RSSI of RX PPDU on chain 3 of secondary 80 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_comb
+ *		The combined RSSI of RX PPDU of all active chains and
+ *		bandwidths.  Value of 0x80 indicates invalid.
+ *
+ * reserved_4a
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * is_greenfield
+ *		Do we really support this?
+ *
+ * reserved_4b
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * l_sig_rate
+ *		If l_sig_rate_select is 0:
+ *		0x8: OFDM 48 Mbps
+ *		0x9: OFDM 24 Mbps
+ *		0xA: OFDM 12 Mbps
+ *		0xB: OFDM 6 Mbps
+ *		0xC: OFDM 54 Mbps
+ *		0xD: OFDM 36 Mbps
+ *		0xE: OFDM 18 Mbps
+ *		0xF: OFDM 9 Mbps
+ *		If l_sig_rate_select is 1:
+ *		0x8: CCK 11 Mbps long preamble
+ *		0x9: CCK 5.5 Mbps long preamble
+ *		0xA: CCK 2 Mbps long preamble
+ *		0xB: CCK 1 Mbps long preamble
+ *		0xC: CCK 11 Mbps short preamble
+ *		0xD: CCK 5.5 Mbps short preamble
+ *		0xE: CCK 2 Mbps short preamble
+ *
+ * l_sig_rate_select
+ *		Legacy signal rate select.  If set then l_sig_rate indicates
+ *		CCK rates.  If clear then l_sig_rate indicates OFDM rates.
+ *
+ * l_sig_length
+ *		Length of legacy frame in octets.
+ *
+ * l_sig_parity
+ *		Odd parity over l_sig_rate and l_sig_length
+ *
+ * l_sig_tail
+ *		Tail bits for Viterbi decoder
+ *
+ * preamble_type
+ *		Indicates the type of preamble ahead:
+ *		0x4: Legacy (OFDM/CCK)
+ *		0x8: HT
+ *		0x9: HT with TxBF
+ *		0xC: VHT
+ *		0xD: VHT with TxBF
+ *		0x80 - 0xFF: Reserved for special baseband data types such
+ *		as radar and spectral scan.
+ *
+ * ht_sig_vht_sig_a_1
+ *		If preamble_type == 0x8 or 0x9
+ *		HT-SIG (first 24 bits)
+ *		If preamble_type == 0xC or 0xD
+ *		VHT-SIG A (first 24 bits)
+ *		Else
+ *		Reserved
+ *
+ * reserved_6
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * ht_sig_vht_sig_a_2
+ *		If preamble_type == 0x8 or 0x9
+ *		HT-SIG (last 24 bits)
+ *		If preamble_type == 0xC or 0xD
+ *		VHT-SIG A (last 24 bits)
+ *		Else
+ *		Reserved
+ *
+ * txbf_h_info
+ *		Indicates that the packet data carries H information which
+ *		is used for TxBF debug.
+ *
+ * reserved_7
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * vht_sig_b
+ *		WiFi 1.0 and WiFi 2.0 will likely have this field to be all
+ *		0s since the BB does not plan on decoding VHT SIG-B.
+ *
+ * reserved_8
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * service
+ *		Service field from BB for OFDM, HT and VHT packets.  CCK
+ *		packets will have service field of 0.
+ *
+ * reserved_9
+ *		Reserved: HW should fill with 0, FW should ignore.
+*/
+
+
+#define RX_PPDU_END_FLAGS_PHY_ERR             (1 << 0)
+#define RX_PPDU_END_FLAGS_RX_LOCATION         (1 << 1)
+#define RX_PPDU_END_FLAGS_TXBF_H_INFO         (1 << 2)
+
+#define RX_PPDU_END_INFO0_RX_ANTENNA_MASK     0x00ffffff
+#define RX_PPDU_END_INFO0_RX_ANTENNA_LSB      0
+#define RX_PPDU_END_INFO0_FLAGS_TX_HT_VHT_ACK (1 << 24)
+#define RX_PPDU_END_INFO0_BB_CAPTURED_CHANNEL (1 << 25)
+
+#define RX_PPDU_END_INFO1_PPDU_DONE (1 << 15)
+
+struct rx_ppdu_end {
+	__le32 evm_p0;
+	__le32 evm_p1;
+	__le32 evm_p2;
+	__le32 evm_p3;
+	__le32 evm_p4;
+	__le32 evm_p5;
+	__le32 evm_p6;
+	__le32 evm_p7;
+	__le32 evm_p8;
+	__le32 evm_p9;
+	__le32 evm_p10;
+	__le32 evm_p11;
+	__le32 evm_p12;
+	__le32 evm_p13;
+	__le32 evm_p14;
+	__le32 evm_p15;
+	__le32 tsf_timestamp;
+	__le32 wb_timestamp;
+	u8 locationing_timestamp;
+	u8 phy_err_code;
+	__le16 flags; /* %RX_PPDU_END_FLAGS_ */
+	__le32 info0; /* %RX_PPDU_END_INFO0_ */
+	__le16 bb_length;
+	__le16 info1; /* %RX_PPDU_END_INFO1_ */
+} __packed;
+
+/*
+ * evm_p0
+ *		EVM for pilot 0.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p1
+ *		EVM for pilot 1.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p2
+ *		EVM for pilot 2.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p3
+ *		EVM for pilot 3.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p4
+ *		EVM for pilot 4.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p5
+ *		EVM for pilot 5.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p6
+ *		EVM for pilot 6.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p7
+ *		EVM for pilot 7.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p8
+ *		EVM for pilot 8.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p9
+ *		EVM for pilot 9.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p10
+ *		EVM for pilot 10.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p11
+ *		EVM for pilot 11.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p12
+ *		EVM for pilot 12.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p13
+ *		EVM for pilot 13.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p14
+ *		EVM for pilot 14.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p15
+ *		EVM for pilot 15.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * tsf_timestamp
+ *		Receive TSF timestamp sampled on the rising edge of
+ *		rx_clear.  For PHY errors this may be the current TSF when
+ *		phy_error is asserted if the rx_clear does not assert before
+ *		the end of the PHY error.
+ *
+ * wb_timestamp
+ *		WLAN/BT timestamp is a 1 usec resolution timestamp which
+ *		does not get updated based on receive beacon like TSF.  The
+ *		same rules for capturing tsf_timestamp are used to capture
+ *		the wb_timestamp.
+ *
+ * locationing_timestamp
+ *		Timestamp used for locationing.  This timestamp is used to
+ *		indicate fractions of usec.  For example if the MAC clock is
+ *		running at 80 MHz, the timestamp will increment every 12.5
+ *		nsec.  The value starts at 0 and increments to 79 and
+ *		returns to 0 and repeats.  This information is valid for
+ *		every PPDU.  This information can be used in conjunction
+ *		with wb_timestamp to capture large delta times.
+ *
+ * phy_err_code
+ *		See the 1.10.8.1.2 for the list of the PHY error codes.
+ *
+ * phy_err
+ *		Indicates a PHY error was detected for this PPDU.
+ *
+ * rx_location
+ *		Indicates that location information was requested.
+ *
+ * txbf_h_info
+ *		Indicates that the packet data carries H information which
+ *		is used for TxBF debug.
+ *
+ * reserved_18
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * rx_antenna
+ *		Receive antenna value
+ *
+ * tx_ht_vht_ack
+ *		Indicates that a HT or VHT Ack/BA frame was transmitted in
+ *		response to this receive packet.
+ *
+ * bb_captured_channel
+ *		Indicates that the BB has captured a channel dump.  FW can
+ *		then read the channel dump memory.  This may indicate that
+ *		the channel was captured either based on PCU setting the
+ *		capture_channel bit  BB descriptor or FW setting the
+ *		capture_channel mode bit.
+ *
+ * reserved_19
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * bb_length
+ *		Indicates the number of bytes of baseband information for
+ *		PPDUs where the BB descriptor preamble type is 0x80 to 0xFF
+ *		which indicates that this is not a normal PPDU but rather
+ *		contains baseband debug information.
+ *
+ * reserved_20
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * ppdu_done
+ *		PPDU end status is only valid when ppdu_done bit is set.
+ *		Every time HW sets this bit in memory FW/SW must clear this
+ *		bit in memory.  FW will initialize all the ppdu_done dword
+ *		to 0.
+*/
+
+#define FW_RX_DESC_INFO0_DISCARD  (1 << 0)
+#define FW_RX_DESC_INFO0_FORWARD  (1 << 1)
+#define FW_RX_DESC_INFO0_INSPECT  (1 << 5)
+#define FW_RX_DESC_INFO0_EXT_MASK 0xC0
+#define FW_RX_DESC_INFO0_EXT_LSB  6
+
+struct fw_rx_desc_base {
+	u8 info0;
+} __packed;
+
+#endif /* _RX_DESC_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/targaddrs.h b/drivers/net/wireless/ath/ath10k/targaddrs.h
new file mode 100644
index 0000000..be7ba1e
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/targaddrs.h
@@ -0,0 +1,449 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __TARGADDRS_H__
+#define __TARGADDRS_H__
+
+/*
+ * xxx_HOST_INTEREST_ADDRESS is the address in Target RAM of the
+ * host_interest structure.  It must match the address of the _host_interest
+ * symbol (see linker script).
+ *
+ * Host Interest is shared between Host and Target in order to coordinate
+ * between the two, and is intended to remain constant (with additions only
+ * at the end) across software releases.
+ *
+ * All addresses are available here so that it's possible to
+ * write a single binary that works with all Target Types.
+ * May be used in assembler code as well as C.
+ */
+#define QCA988X_HOST_INTEREST_ADDRESS    0x00400800
+#define HOST_INTEREST_MAX_SIZE          0x200
+
+/*
+ * These are items that the Host may need to access via BMI or via the
+ * Diagnostic Window. The position of items in this structure must remain
+ * constant across firmware revisions! Types for each item must be fixed
+ * size across target and host platforms. More items may be added at the end.
+ */
+struct host_interest {
+	/*
+	 * Pointer to application-defined area, if any.
+	 * Set by Target application during startup.
+	 */
+	u32 hi_app_host_interest;			/* 0x00 */
+
+	/* Pointer to register dump area, valid after Target crash. */
+	u32 hi_failure_state;				/* 0x04 */
+
+	/* Pointer to debug logging header */
+	u32 hi_dbglog_hdr;				/* 0x08 */
+
+	u32 hi_unused0c;				/* 0x0c */
+
+	/*
+	 * General-purpose flag bits, similar to SOC_OPTION_* flags.
+	 * Can be used by application rather than by OS.
+	 */
+	u32 hi_option_flag;				/* 0x10 */
+
+	/*
+	 * Boolean that determines whether or not to
+	 * display messages on the serial port.
+	 */
+	u32 hi_serial_enable;				/* 0x14 */
+
+	/* Start address of DataSet index, if any */
+	u32 hi_dset_list_head;				/* 0x18 */
+
+	/* Override Target application start address */
+	u32 hi_app_start;				/* 0x1c */
+
+	/* Clock and voltage tuning */
+	u32 hi_skip_clock_init;				/* 0x20 */
+	u32 hi_core_clock_setting;			/* 0x24 */
+	u32 hi_cpu_clock_setting;			/* 0x28 */
+	u32 hi_system_sleep_setting;			/* 0x2c */
+	u32 hi_xtal_control_setting;			/* 0x30 */
+	u32 hi_pll_ctrl_setting_24ghz;			/* 0x34 */
+	u32 hi_pll_ctrl_setting_5ghz;			/* 0x38 */
+	u32 hi_ref_voltage_trim_setting;		/* 0x3c */
+	u32 hi_clock_info;				/* 0x40 */
+
+	/* Host uses BE CPU or not */
+	u32 hi_be;					/* 0x44 */
+
+	u32 hi_stack;	/* normal stack */			/* 0x48 */
+	u32 hi_err_stack; /* error stack */		/* 0x4c */
+	u32 hi_desired_cpu_speed_hz;			/* 0x50 */
+
+	/* Pointer to Board Data  */
+	u32 hi_board_data;				/* 0x54 */
+
+	/*
+	 * Indication of Board Data state:
+	 *    0: board data is not yet initialized.
+	 *    1: board data is initialized; unknown size
+	 *   >1: number of bytes of initialized board data
+	 */
+	u32 hi_board_data_initialized;			/* 0x58 */
+
+	u32 hi_dset_ram_index_table;			/* 0x5c */
+
+	u32 hi_desired_baud_rate;			/* 0x60 */
+	u32 hi_dbglog_config;				/* 0x64 */
+	u32 hi_end_ram_reserve_sz;			/* 0x68 */
+	u32 hi_mbox_io_block_sz;			/* 0x6c */
+
+	u32 hi_num_bpatch_streams;			/* 0x70 -- unused */
+	u32 hi_mbox_isr_yield_limit;			/* 0x74 */
+
+	u32 hi_refclk_hz;				/* 0x78 */
+	u32 hi_ext_clk_detected;			/* 0x7c */
+	u32 hi_dbg_uart_txpin;				/* 0x80 */
+	u32 hi_dbg_uart_rxpin;				/* 0x84 */
+	u32 hi_hci_uart_baud;				/* 0x88 */
+	u32 hi_hci_uart_pin_assignments;		/* 0x8C */
+
+	u32 hi_hci_uart_baud_scale_val;			/* 0x90 */
+	u32 hi_hci_uart_baud_step_val;			/* 0x94 */
+
+	u32 hi_allocram_start;				/* 0x98 */
+	u32 hi_allocram_sz;				/* 0x9c */
+	u32 hi_hci_bridge_flags;			/* 0xa0 */
+	u32 hi_hci_uart_support_pins;			/* 0xa4 */
+
+	u32 hi_hci_uart_pwr_mgmt_params;		/* 0xa8 */
+
+	/*
+	 * 0xa8 - [1]: 0 = UART FC active low, 1 = UART FC active high
+	 *        [31:16]: wakeup timeout in ms
+	 */
+	/* Pointer to extended board Data  */
+	u32 hi_board_ext_data;				/* 0xac */
+	u32 hi_board_ext_data_config;			/* 0xb0 */
+	/*
+	 * Bit [0]  :   valid
+	 * Bit[31:16:   size
+	 */
+	/*
+	 * hi_reset_flag is used to do some stuff when target reset.
+	 * such as restore app_start after warm reset or
+	 * preserve host Interest area, or preserve ROM data, literals etc.
+	 */
+	u32  hi_reset_flag;				/* 0xb4 */
+	/* indicate hi_reset_flag is valid */
+	u32  hi_reset_flag_valid;			/* 0xb8 */
+	u32 hi_hci_uart_pwr_mgmt_params_ext;		/* 0xbc */
+	/* 0xbc - [31:0]: idle timeout in ms */
+	/* ACS flags */
+	u32 hi_acs_flags;				/* 0xc0 */
+	u32 hi_console_flags;				/* 0xc4 */
+	u32 hi_nvram_state;				/* 0xc8 */
+	u32 hi_option_flag2;				/* 0xcc */
+
+	/* If non-zero, override values sent to Host in WMI_READY event. */
+	u32 hi_sw_version_override;			/* 0xd0 */
+	u32 hi_abi_version_override;			/* 0xd4 */
+
+	/*
+	 * Percentage of high priority RX traffic to total expected RX traffic
+	 * applicable only to ar6004
+	 */
+	u32 hi_hp_rx_traffic_ratio;			/* 0xd8 */
+
+	/* test applications flags */
+	u32 hi_test_apps_related;			/* 0xdc */
+	/* location of test script */
+	u32 hi_ota_testscript;				/* 0xe0 */
+	/* location of CAL data */
+	u32 hi_cal_data;				/* 0xe4 */
+
+	/* Number of packet log buffers */
+	u32 hi_pktlog_num_buffers;			/* 0xe8 */
+
+	/* wow extension configuration */
+	u32 hi_wow_ext_config;				/* 0xec */
+	u32 hi_pwr_save_flags;				/* 0xf0 */
+
+	/* Spatial Multiplexing Power Save (SMPS) options */
+	u32 hi_smps_options;				/* 0xf4 */
+
+	/* Interconnect-specific state */
+	u32 hi_interconnect_state;			/* 0xf8 */
+
+	/* Coex configuration flags */
+	u32 hi_coex_config;				/* 0xfc */
+
+	/* Early allocation support */
+	u32 hi_early_alloc;				/* 0x100 */
+	/* FW swap field */
+	/*
+	 * Bits of this 32bit word will be used to pass specific swap
+	 * instruction to FW
+	 */
+	/*
+	 * Bit 0 -- AP Nart descriptor no swap. When this bit is set
+	 * FW will not swap TX descriptor. Meaning packets are formed
+	 * on the target processor.
+	 */
+	/* Bit 1 - unused */
+	u32 hi_fw_swap;					/* 0x104 */
+} __packed;
+
+#define HI_ITEM(item)  offsetof(struct host_interest, item)
+
+/* Bits defined in hi_option_flag */
+
+/* Enable timer workaround */
+#define HI_OPTION_TIMER_WAR         0x01
+/* Limit BMI command credits */
+#define HI_OPTION_BMI_CRED_LIMIT    0x02
+/* Relay Dot11 hdr to/from host */
+#define HI_OPTION_RELAY_DOT11_HDR   0x04
+/* MAC addr method 0-locally administred 1-globally unique addrs */
+#define HI_OPTION_MAC_ADDR_METHOD   0x08
+/* Firmware Bridging */
+#define HI_OPTION_FW_BRIDGE         0x10
+/* Enable CPU profiling */
+#define HI_OPTION_ENABLE_PROFILE    0x20
+/* Disable debug logging */
+#define HI_OPTION_DISABLE_DBGLOG    0x40
+/* Skip Era Tracking */
+#define HI_OPTION_SKIP_ERA_TRACKING 0x80
+/* Disable PAPRD (debug) */
+#define HI_OPTION_PAPRD_DISABLE     0x100
+#define HI_OPTION_NUM_DEV_LSB       0x200
+#define HI_OPTION_NUM_DEV_MSB       0x800
+#define HI_OPTION_DEV_MODE_LSB      0x1000
+#define HI_OPTION_DEV_MODE_MSB      0x8000000
+/* Disable LowFreq Timer Stabilization */
+#define HI_OPTION_NO_LFT_STBL       0x10000000
+/* Skip regulatory scan */
+#define HI_OPTION_SKIP_REG_SCAN     0x20000000
+/*
+ * Do regulatory scan during init before
+ * sending WMI ready event to host
+ */
+#define HI_OPTION_INIT_REG_SCAN     0x40000000
+
+/* REV6: Do not adjust memory map */
+#define HI_OPTION_SKIP_MEMMAP       0x80000000
+
+#define HI_OPTION_MAC_ADDR_METHOD_SHIFT 3
+
+/* 2 bits of hi_option_flag are used to represent 3 modes */
+#define HI_OPTION_FW_MODE_IBSS    0x0 /* IBSS Mode */
+#define HI_OPTION_FW_MODE_BSS_STA 0x1 /* STA Mode */
+#define HI_OPTION_FW_MODE_AP      0x2 /* AP Mode */
+#define HI_OPTION_FW_MODE_BT30AMP 0x3 /* BT30 AMP Mode */
+
+/* 2 bits of hi_option flag are usedto represent 4 submodes */
+#define HI_OPTION_FW_SUBMODE_NONE    0x0  /* Normal mode */
+#define HI_OPTION_FW_SUBMODE_P2PDEV  0x1  /* p2p device mode */
+#define HI_OPTION_FW_SUBMODE_P2PCLIENT 0x2 /* p2p client mode */
+#define HI_OPTION_FW_SUBMODE_P2PGO   0x3 /* p2p go mode */
+
+/* Num dev Mask */
+#define HI_OPTION_NUM_DEV_MASK    0x7
+#define HI_OPTION_NUM_DEV_SHIFT   0x9
+
+/* firmware bridging */
+#define HI_OPTION_FW_BRIDGE_SHIFT 0x04
+
+/*
+Fw Mode/SubMode Mask
+|-----------------------------------------------------------------------------|
+|  SUB   |   SUB   |   SUB   |  SUB    |         |         |         |        |
+|MODE[3] | MODE[2] | MODE[1] | MODE[0] | MODE[3] | MODE[2] | MODE[1] | MODE[0]|
+|  (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)  |
+|-----------------------------------------------------------------------------|
+*/
+#define HI_OPTION_FW_MODE_BITS         0x2
+#define HI_OPTION_FW_MODE_MASK         0x3
+#define HI_OPTION_FW_MODE_SHIFT        0xC
+#define HI_OPTION_ALL_FW_MODE_MASK     0xFF
+
+#define HI_OPTION_FW_SUBMODE_BITS      0x2
+#define HI_OPTION_FW_SUBMODE_MASK      0x3
+#define HI_OPTION_FW_SUBMODE_SHIFT     0x14
+#define HI_OPTION_ALL_FW_SUBMODE_MASK  0xFF00
+#define HI_OPTION_ALL_FW_SUBMODE_SHIFT 0x8
+
+
+/* hi_option_flag2 options */
+#define HI_OPTION_OFFLOAD_AMSDU     0x01
+#define HI_OPTION_DFS_SUPPORT       0x02 /* Enable DFS support */
+#define HI_OPTION_ENABLE_RFKILL     0x04 /* RFKill Enable Feature*/
+#define HI_OPTION_RADIO_RETENTION_DISABLE 0x08 /* Disable radio retention */
+#define HI_OPTION_EARLY_CFG_DONE    0x10 /* Early configuration is complete */
+
+#define HI_OPTION_RF_KILL_SHIFT     0x2
+#define HI_OPTION_RF_KILL_MASK      0x1
+
+/* hi_reset_flag */
+/* preserve App Start address */
+#define HI_RESET_FLAG_PRESERVE_APP_START         0x01
+/* preserve host interest */
+#define HI_RESET_FLAG_PRESERVE_HOST_INTEREST     0x02
+/* preserve ROM data */
+#define HI_RESET_FLAG_PRESERVE_ROMDATA           0x04
+#define HI_RESET_FLAG_PRESERVE_NVRAM_STATE       0x08
+#define HI_RESET_FLAG_PRESERVE_BOOT_INFO         0x10
+#define HI_RESET_FLAG_WARM_RESET	0x20
+
+/* define hi_fw_swap bits */
+#define HI_DESC_IN_FW_BIT	0x01
+
+/* indicate the reset flag is valid */
+#define HI_RESET_FLAG_IS_VALID  0x12345678
+
+/* ACS is enabled */
+#define HI_ACS_FLAGS_ENABLED        (1 << 0)
+/* Use physical WWAN device */
+#define HI_ACS_FLAGS_USE_WWAN       (1 << 1)
+/* Use test VAP */
+#define HI_ACS_FLAGS_TEST_VAP       (1 << 2)
+
+/*
+ * CONSOLE FLAGS
+ *
+ * Bit Range  Meaning
+ * ---------  --------------------------------
+ *   2..0     UART ID (0 = Default)
+ *    3       Baud Select (0 = 9600, 1 = 115200)
+ *   30..4    Reserved
+ *    31      Enable Console
+ *
+ */
+
+#define HI_CONSOLE_FLAGS_ENABLE       (1 << 31)
+#define HI_CONSOLE_FLAGS_UART_MASK    (0x7)
+#define HI_CONSOLE_FLAGS_UART_SHIFT   0
+#define HI_CONSOLE_FLAGS_BAUD_SELECT  (1 << 3)
+
+/* SM power save options */
+#define HI_SMPS_ALLOW_MASK            (0x00000001)
+#define HI_SMPS_MODE_MASK             (0x00000002)
+#define HI_SMPS_MODE_STATIC           (0x00000000)
+#define HI_SMPS_MODE_DYNAMIC          (0x00000002)
+#define HI_SMPS_DISABLE_AUTO_MODE     (0x00000004)
+#define HI_SMPS_DATA_THRESH_MASK      (0x000007f8)
+#define HI_SMPS_DATA_THRESH_SHIFT     (3)
+#define HI_SMPS_RSSI_THRESH_MASK      (0x0007f800)
+#define HI_SMPS_RSSI_THRESH_SHIFT     (11)
+#define HI_SMPS_LOWPWR_CM_MASK        (0x00380000)
+#define HI_SMPS_LOWPWR_CM_SHIFT       (15)
+#define HI_SMPS_HIPWR_CM_MASK         (0x03c00000)
+#define HI_SMPS_HIPWR_CM_SHIFT        (19)
+
+/*
+ * WOW Extension configuration
+ *
+ * Bit Range  Meaning
+ * ---------  --------------------------------
+ *   8..0     Size of each WOW pattern (max 511)
+ *   15..9    Number of patterns per list (max 127)
+ *   17..16   Number of lists (max 4)
+ *   30..18   Reserved
+ *   31       Enabled
+ *
+ *  set values (except enable) to zeros for default settings
+ */
+
+#define HI_WOW_EXT_ENABLED_MASK        (1 << 31)
+#define HI_WOW_EXT_NUM_LIST_SHIFT      16
+#define HI_WOW_EXT_NUM_LIST_MASK       (0x3 << HI_WOW_EXT_NUM_LIST_SHIFT)
+#define HI_WOW_EXT_NUM_PATTERNS_SHIFT  9
+#define HI_WOW_EXT_NUM_PATTERNS_MASK   (0x7F << HI_WOW_EXT_NUM_PATTERNS_SHIFT)
+#define HI_WOW_EXT_PATTERN_SIZE_SHIFT  0
+#define HI_WOW_EXT_PATTERN_SIZE_MASK   (0x1FF << HI_WOW_EXT_PATTERN_SIZE_SHIFT)
+
+#define HI_WOW_EXT_MAKE_CONFIG(num_lists, count, size) \
+	((((num_lists) << HI_WOW_EXT_NUM_LIST_SHIFT) & \
+		HI_WOW_EXT_NUM_LIST_MASK) | \
+	(((count) << HI_WOW_EXT_NUM_PATTERNS_SHIFT) & \
+		HI_WOW_EXT_NUM_PATTERNS_MASK) | \
+	(((size) << HI_WOW_EXT_PATTERN_SIZE_SHIFT) & \
+		HI_WOW_EXT_PATTERN_SIZE_MASK))
+
+#define HI_WOW_EXT_GET_NUM_LISTS(config) \
+	(((config) & HI_WOW_EXT_NUM_LIST_MASK) >> HI_WOW_EXT_NUM_LIST_SHIFT)
+#define HI_WOW_EXT_GET_NUM_PATTERNS(config) \
+	(((config) & HI_WOW_EXT_NUM_PATTERNS_MASK) >> \
+		HI_WOW_EXT_NUM_PATTERNS_SHIFT)
+#define HI_WOW_EXT_GET_PATTERN_SIZE(config) \
+	(((config) & HI_WOW_EXT_PATTERN_SIZE_MASK) >> \
+		HI_WOW_EXT_PATTERN_SIZE_SHIFT)
+
+/*
+ * Early allocation configuration
+ * Support RAM bank configuration before BMI done and this eases the memory
+ * allocation at very early stage
+ * Bit Range  Meaning
+ * ---------  ----------------------------------
+ * [0:3]      number of bank assigned to be IRAM
+ * [4:15]     reserved
+ * [16:31]    magic number
+ *
+ * Note:
+ * 1. target firmware would check magic number and if it's a match, firmware
+ *    would consider the bits[0:15] are valid and base on that to calculate
+ *    the end of DRAM. Early allocation would be located at that area and
+ *    may be reclaimed when necesary
+ * 2. if no magic number is found, early allocation would happen at "_end"
+ *    symbol of ROM which is located before the app-data and might NOT be
+ *    re-claimable. If this is adopted, link script should keep this in
+ *    mind to avoid data corruption.
+ */
+#define HI_EARLY_ALLOC_MAGIC		0x6d8a
+#define HI_EARLY_ALLOC_MAGIC_MASK	0xffff0000
+#define HI_EARLY_ALLOC_MAGIC_SHIFT	16
+#define HI_EARLY_ALLOC_IRAM_BANKS_MASK	0x0000000f
+#define HI_EARLY_ALLOC_IRAM_BANKS_SHIFT	0
+
+#define HI_EARLY_ALLOC_VALID() \
+	((((HOST_INTEREST->hi_early_alloc) & HI_EARLY_ALLOC_MAGIC_MASK) >> \
+	HI_EARLY_ALLOC_MAGIC_SHIFT) == (HI_EARLY_ALLOC_MAGIC))
+#define HI_EARLY_ALLOC_GET_IRAM_BANKS() \
+	(((HOST_INTEREST->hi_early_alloc) & HI_EARLY_ALLOC_IRAM_BANKS_MASK) \
+	>> HI_EARLY_ALLOC_IRAM_BANKS_SHIFT)
+
+/*power save flag bit definitions*/
+#define HI_PWR_SAVE_LPL_ENABLED   0x1
+/*b1-b3 reserved*/
+/*b4-b5 : dev0 LPL type : 0 - none
+			  1- Reduce Pwr Search
+			  2- Reduce Pwr Listen*/
+/*b6-b7 : dev1 LPL type and so on for Max 8 devices*/
+#define HI_PWR_SAVE_LPL_DEV0_LSB   4
+#define HI_PWR_SAVE_LPL_DEV_MASK   0x3
+/*power save related utility macros*/
+#define HI_LPL_ENABLED() \
+	((HOST_INTEREST->hi_pwr_save_flags & HI_PWR_SAVE_LPL_ENABLED))
+#define HI_DEV_LPL_TYPE_GET(_devix) \
+	(HOST_INTEREST->hi_pwr_save_flags & ((HI_PWR_SAVE_LPL_DEV_MASK) << \
+	 (HI_PWR_SAVE_LPL_DEV0_LSB + (_devix)*2)))
+
+#define HOST_INTEREST_SMPS_IS_ALLOWED() \
+	((HOST_INTEREST->hi_smps_options & HI_SMPS_ALLOW_MASK))
+
+/* Reserve 1024 bytes for extended board data */
+#define QCA988X_BOARD_DATA_SZ     7168
+#define QCA988X_BOARD_EXT_DATA_SZ 0
+
+#endif /* __TARGADDRS_H__ */
diff --git a/drivers/net/wireless/ath/ath10k/trace.c b/drivers/net/wireless/ath/ath10k/trace.c
new file mode 100644
index 0000000..4a31e2c
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/trace.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2012 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
diff --git a/drivers/net/wireless/ath/ath10k/trace.h b/drivers/net/wireless/ath/ath10k/trace.h
new file mode 100644
index 0000000..85e806b
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/trace.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if !defined(_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+
+#include <linux/tracepoint.h>
+
+#define _TRACE_H_
+
+/* create empty functions when tracing is disabled */
+#if !defined(CONFIG_ATH10K_TRACING)
+#undef TRACE_EVENT
+#define TRACE_EVENT(name, proto, ...) \
+static inline void trace_ ## name(proto) {}
+#undef DECLARE_EVENT_CLASS
+#define DECLARE_EVENT_CLASS(...)
+#undef DEFINE_EVENT
+#define DEFINE_EVENT(evt_class, name, proto, ...) \
+static inline void trace_ ## name(proto) {}
+#endif /* !CONFIG_ATH10K_TRACING || __CHECKER__ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM ath10k
+
+#define ATH10K_MSG_MAX 200
+
+DECLARE_EVENT_CLASS(ath10k_log_event,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf),
+	TP_STRUCT__entry(
+		__dynamic_array(char, msg, ATH10K_MSG_MAX)
+	),
+	TP_fast_assign(
+		WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+				       ATH10K_MSG_MAX,
+				       vaf->fmt,
+				       *vaf->va) >= ATH10K_MSG_MAX);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+DEFINE_EVENT(ath10k_log_event, ath10k_log_err,
+	     TP_PROTO(struct va_format *vaf),
+	     TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(ath10k_log_event, ath10k_log_warn,
+	     TP_PROTO(struct va_format *vaf),
+	     TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(ath10k_log_event, ath10k_log_info,
+	     TP_PROTO(struct va_format *vaf),
+	     TP_ARGS(vaf)
+);
+
+TRACE_EVENT(ath10k_log_dbg,
+	TP_PROTO(unsigned int level, struct va_format *vaf),
+	TP_ARGS(level, vaf),
+	TP_STRUCT__entry(
+		__field(unsigned int, level)
+		__dynamic_array(char, msg, ATH10K_MSG_MAX)
+	),
+	TP_fast_assign(
+		__entry->level = level;
+		WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+				       ATH10K_MSG_MAX,
+				       vaf->fmt,
+				       *vaf->va) >= ATH10K_MSG_MAX);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+TRACE_EVENT(ath10k_log_dbg_dump,
+	TP_PROTO(const char *msg, const char *prefix,
+		 const void *buf, size_t buf_len),
+
+	TP_ARGS(msg, prefix, buf, buf_len),
+
+	TP_STRUCT__entry(
+		__string(msg, msg)
+		__string(prefix, prefix)
+		__field(size_t, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__assign_str(msg, msg);
+		__assign_str(prefix, prefix);
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"%s/%s\n", __get_str(prefix), __get_str(msg)
+	)
+);
+
+TRACE_EVENT(ath10k_wmi_cmd,
+	TP_PROTO(int id, void *buf, size_t buf_len),
+
+	TP_ARGS(id, buf, buf_len),
+
+	TP_STRUCT__entry(
+		__field(unsigned int, id)
+		__field(size_t, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__entry->id = id;
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"id %d len %zu",
+		__entry->id,
+		__entry->buf_len
+	)
+);
+
+TRACE_EVENT(ath10k_wmi_event,
+	TP_PROTO(int id, void *buf, size_t buf_len),
+
+	TP_ARGS(id, buf, buf_len),
+
+	TP_STRUCT__entry(
+		__field(unsigned int, id)
+		__field(size_t, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__entry->id = id;
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"id %d len %zu",
+		__entry->id,
+		__entry->buf_len
+	)
+);
+
+#endif /* _TRACE_H_ || TRACE_HEADER_MULTI_READ*/
+
+/* we don't want to use include/trace/events */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
new file mode 100644
index 0000000..68b6fae
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -0,0 +1,417 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "core.h"
+#include "txrx.h"
+#include "htt.h"
+#include "mac.h"
+#include "debug.h"
+
+static void ath10k_report_offchan_tx(struct ath10k *ar, struct sk_buff *skb)
+{
+	if (!ATH10K_SKB_CB(skb)->htt.is_offchan)
+		return;
+
+	/* If the original wait_for_completion() timed out before
+	 * {data,mgmt}_tx_completed() was called then we could complete
+	 * offchan_tx_completed for a different skb. Prevent this by using
+	 * offchan_tx_skb. */
+	spin_lock_bh(&ar->data_lock);
+	if (ar->offchan_tx_skb != skb) {
+		ath10k_warn("completed old offchannel frame\n");
+		goto out;
+	}
+
+	complete(&ar->offchan_tx_completed);
+	ar->offchan_tx_skb = NULL; /* just for sanity */
+
+	ath10k_dbg(ATH10K_DBG_HTT, "completed offchannel skb %p\n", skb);
+out:
+	spin_unlock_bh(&ar->data_lock);
+}
+
+void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc)
+{
+	struct device *dev = htt->ar->dev;
+	struct ieee80211_tx_info *info;
+	struct sk_buff *txfrag = ATH10K_SKB_CB(txdesc)->htt.txfrag;
+	struct sk_buff *msdu = ATH10K_SKB_CB(txdesc)->htt.msdu;
+	int ret;
+
+	if (ATH10K_SKB_CB(txdesc)->htt.refcount == 0)
+		return;
+
+	ATH10K_SKB_CB(txdesc)->htt.refcount--;
+
+	if (ATH10K_SKB_CB(txdesc)->htt.refcount > 0)
+		return;
+
+	if (txfrag) {
+		ret = ath10k_skb_unmap(dev, txfrag);
+		if (ret)
+			ath10k_warn("txfrag unmap failed (%d)\n", ret);
+
+		dev_kfree_skb_any(txfrag);
+	}
+
+	ret = ath10k_skb_unmap(dev, msdu);
+	if (ret)
+		ath10k_warn("data skb unmap failed (%d)\n", ret);
+
+	ath10k_report_offchan_tx(htt->ar, msdu);
+
+	info = IEEE80211_SKB_CB(msdu);
+	memset(&info->status, 0, sizeof(info->status));
+
+	if (ATH10K_SKB_CB(txdesc)->htt.discard) {
+		ieee80211_free_txskb(htt->ar->hw, msdu);
+		goto exit;
+	}
+
+	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
+		info->flags |= IEEE80211_TX_STAT_ACK;
+
+	if (ATH10K_SKB_CB(txdesc)->htt.no_ack)
+		info->flags &= ~IEEE80211_TX_STAT_ACK;
+
+	ieee80211_tx_status(htt->ar->hw, msdu);
+	/* we do not own the msdu anymore */
+
+exit:
+	spin_lock_bh(&htt->tx_lock);
+	htt->pending_tx[ATH10K_SKB_CB(txdesc)->htt.msdu_id] = NULL;
+	ath10k_htt_tx_free_msdu_id(htt, ATH10K_SKB_CB(txdesc)->htt.msdu_id);
+	__ath10k_htt_tx_dec_pending(htt);
+	if (bitmap_empty(htt->used_msdu_ids, htt->max_num_pending_tx))
+		wake_up(&htt->empty_tx_wq);
+	spin_unlock_bh(&htt->tx_lock);
+
+	dev_kfree_skb_any(txdesc);
+}
+
+void ath10k_txrx_tx_completed(struct ath10k_htt *htt,
+			      const struct htt_tx_done *tx_done)
+{
+	struct sk_buff *txdesc;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion msdu_id %u discard %d no_ack %d\n",
+		   tx_done->msdu_id, !!tx_done->discard, !!tx_done->no_ack);
+
+	if (tx_done->msdu_id >= htt->max_num_pending_tx) {
+		ath10k_warn("warning: msdu_id %d too big, ignoring\n",
+			    tx_done->msdu_id);
+		return;
+	}
+
+	txdesc = htt->pending_tx[tx_done->msdu_id];
+
+	ATH10K_SKB_CB(txdesc)->htt.discard = tx_done->discard;
+	ATH10K_SKB_CB(txdesc)->htt.no_ack = tx_done->no_ack;
+
+	ath10k_txrx_tx_unref(htt, txdesc);
+}
+
+static const u8 rx_legacy_rate_idx[] = {
+	3,	/* 0x00  - 11Mbps  */
+	2,	/* 0x01  - 5.5Mbps */
+	1,	/* 0x02  - 2Mbps   */
+	0,	/* 0x03  - 1Mbps   */
+	3,	/* 0x04  - 11Mbps  */
+	2,	/* 0x05  - 5.5Mbps */
+	1,	/* 0x06  - 2Mbps   */
+	0,	/* 0x07  - 1Mbps   */
+	10,	/* 0x08  - 48Mbps  */
+	8,	/* 0x09  - 24Mbps  */
+	6,	/* 0x0A  - 12Mbps  */
+	4,	/* 0x0B  - 6Mbps   */
+	11,	/* 0x0C  - 54Mbps  */
+	9,	/* 0x0D  - 36Mbps  */
+	7,	/* 0x0E  - 18Mbps  */
+	5,	/* 0x0F  - 9Mbps   */
+};
+
+static void process_rx_rates(struct ath10k *ar, struct htt_rx_info *info,
+			     enum ieee80211_band band,
+			     struct ieee80211_rx_status *status)
+{
+	u8 cck, rate, rate_idx, bw, sgi, mcs, nss;
+	u8 info0 = info->rate.info0;
+	u32 info1 = info->rate.info1;
+	u32 info2 = info->rate.info2;
+	u8 preamble = 0;
+
+	/* Check if valid fields */
+	if (!(info0 & HTT_RX_INDICATION_INFO0_START_VALID))
+		return;
+
+	preamble = MS(info1, HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE);
+
+	switch (preamble) {
+	case HTT_RX_LEGACY:
+		cck = info0 & HTT_RX_INDICATION_INFO0_LEGACY_RATE_CCK;
+		rate = MS(info0, HTT_RX_INDICATION_INFO0_LEGACY_RATE);
+		rate_idx = 0;
+
+		if (rate < 0x08 || rate > 0x0F)
+			break;
+
+		switch (band) {
+		case IEEE80211_BAND_2GHZ:
+			if (cck)
+				rate &= ~BIT(3);
+			rate_idx = rx_legacy_rate_idx[rate];
+			break;
+		case IEEE80211_BAND_5GHZ:
+			rate_idx = rx_legacy_rate_idx[rate];
+			/* We are using same rate table registering
+			   HW - ath10k_rates[]. In case of 5GHz skip
+			   CCK rates, so -4 here */
+			rate_idx -= 4;
+			break;
+		default:
+			break;
+		}
+
+		status->rate_idx = rate_idx;
+		break;
+	case HTT_RX_HT:
+	case HTT_RX_HT_WITH_TXBF:
+		/* HT-SIG - Table 20-11 in info1 and info2 */
+		mcs = info1 & 0x1F;
+		nss = mcs >> 3;
+		bw = (info1 >> 7) & 1;
+		sgi = (info2 >> 7) & 1;
+
+		status->rate_idx = mcs;
+		status->flag |= RX_FLAG_HT;
+		if (sgi)
+			status->flag |= RX_FLAG_SHORT_GI;
+		if (bw)
+			status->flag |= RX_FLAG_40MHZ;
+		break;
+	case HTT_RX_VHT:
+	case HTT_RX_VHT_WITH_TXBF:
+		/* VHT-SIG-A1 in info 1, VHT-SIG-A2 in info2
+		   TODO check this */
+		mcs = (info2 >> 4) & 0x0F;
+		nss = (info1 >> 10) & 0x07;
+		bw = info1 & 3;
+		sgi = info2 & 1;
+
+		status->rate_idx = mcs;
+		status->vht_nss = nss;
+
+		if (sgi)
+			status->flag |= RX_FLAG_SHORT_GI;
+
+		switch (bw) {
+		/* 20MHZ */
+		case 0:
+			break;
+		/* 40MHZ */
+		case 1:
+			status->flag |= RX_FLAG_40MHZ;
+			break;
+		/* 80MHZ */
+		case 2:
+			status->flag |= RX_FLAG_80MHZ;
+		}
+
+		status->flag |= RX_FLAG_VHT;
+		break;
+	default:
+		break;
+	}
+}
+
+void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
+{
+	struct ieee80211_rx_status *status;
+	struct ieee80211_channel *ch;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
+
+	status = IEEE80211_SKB_RXCB(info->skb);
+	memset(status, 0, sizeof(*status));
+
+	if (info->encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
+		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
+				RX_FLAG_MMIC_STRIPPED;
+		hdr->frame_control = __cpu_to_le16(
+				__le16_to_cpu(hdr->frame_control) &
+				~IEEE80211_FCTL_PROTECTED);
+	}
+
+	if (info->status == HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR)
+		status->flag |= RX_FLAG_MMIC_ERROR;
+
+	if (info->fcs_err)
+		status->flag |= RX_FLAG_FAILED_FCS_CRC;
+
+	status->signal = info->signal;
+
+	spin_lock_bh(&ar->data_lock);
+	ch = ar->scan_channel;
+	if (!ch)
+		ch = ar->rx_channel;
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!ch) {
+		ath10k_warn("no channel configured; ignoring frame!\n");
+		dev_kfree_skb_any(info->skb);
+		return;
+	}
+
+	process_rx_rates(ar, info, ch->band, status);
+	status->band = ch->band;
+	status->freq = ch->center_freq;
+
+	ath10k_dbg(ATH10K_DBG_DATA,
+		   "rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u\n",
+		   info->skb,
+		   info->skb->len,
+		   status->flag == 0 ? "legacy" : "",
+		   status->flag & RX_FLAG_HT ? "ht" : "",
+		   status->flag & RX_FLAG_VHT ? "vht" : "",
+		   status->flag & RX_FLAG_40MHZ ? "40" : "",
+		   status->flag & RX_FLAG_80MHZ ? "80" : "",
+		   status->flag & RX_FLAG_SHORT_GI ? "sgi " : "",
+		   status->rate_idx,
+		   status->vht_nss,
+		   status->freq,
+		   status->band);
+
+	ieee80211_rx(ar->hw, info->skb);
+}
+
+struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
+				     const u8 *addr)
+{
+	struct ath10k_peer *peer;
+
+	lockdep_assert_held(&ar->data_lock);
+
+	list_for_each_entry(peer, &ar->peers, list) {
+		if (peer->vdev_id != vdev_id)
+			continue;
+		if (memcmp(peer->addr, addr, ETH_ALEN))
+			continue;
+
+		return peer;
+	}
+
+	return NULL;
+}
+
+static struct ath10k_peer *ath10k_peer_find_by_id(struct ath10k *ar,
+						  int peer_id)
+{
+	struct ath10k_peer *peer;
+
+	lockdep_assert_held(&ar->data_lock);
+
+	list_for_each_entry(peer, &ar->peers, list)
+		if (test_bit(peer_id, peer->peer_ids))
+			return peer;
+
+	return NULL;
+}
+
+static int ath10k_wait_for_peer_common(struct ath10k *ar, int vdev_id,
+				       const u8 *addr, bool expect_mapped)
+{
+	int ret;
+
+	ret = wait_event_timeout(ar->peer_mapping_wq, ({
+			bool mapped;
+
+			spin_lock_bh(&ar->data_lock);
+			mapped = !!ath10k_peer_find(ar, vdev_id, addr);
+			spin_unlock_bh(&ar->data_lock);
+
+			mapped == expect_mapped;
+		}), 3*HZ);
+
+	if (ret <= 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id, const u8 *addr)
+{
+	return ath10k_wait_for_peer_common(ar, vdev_id, addr, true);
+}
+
+int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id, const u8 *addr)
+{
+	return ath10k_wait_for_peer_common(ar, vdev_id, addr, false);
+}
+
+void ath10k_peer_map_event(struct ath10k_htt *htt,
+			   struct htt_peer_map_event *ev)
+{
+	struct ath10k *ar = htt->ar;
+	struct ath10k_peer *peer;
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, ev->vdev_id, ev->addr);
+	if (!peer) {
+		peer = kzalloc(sizeof(*peer), GFP_ATOMIC);
+		if (!peer)
+			goto exit;
+
+		peer->vdev_id = ev->vdev_id;
+		memcpy(peer->addr, ev->addr, ETH_ALEN);
+		list_add(&peer->list, &ar->peers);
+		wake_up(&ar->peer_mapping_wq);
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt peer map vdev %d peer %pM id %d\n",
+		   ev->vdev_id, ev->addr, ev->peer_id);
+
+	set_bit(ev->peer_id, peer->peer_ids);
+exit:
+	spin_unlock_bh(&ar->data_lock);
+}
+
+void ath10k_peer_unmap_event(struct ath10k_htt *htt,
+			     struct htt_peer_unmap_event *ev)
+{
+	struct ath10k *ar = htt->ar;
+	struct ath10k_peer *peer;
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find_by_id(ar, ev->peer_id);
+	if (!peer) {
+		ath10k_warn("unknown peer id %d\n", ev->peer_id);
+		goto exit;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt peer unmap vdev %d peer %pM id %d\n",
+		   peer->vdev_id, peer->addr, ev->peer_id);
+
+	clear_bit(ev->peer_id, peer->peer_ids);
+
+	if (bitmap_empty(peer->peer_ids, ATH10K_MAX_NUM_PEER_IDS)) {
+		list_del(&peer->list);
+		kfree(peer);
+		wake_up(&ar->peer_mapping_wq);
+	}
+
+exit:
+	spin_unlock_bh(&ar->data_lock);
+}
diff --git a/drivers/net/wireless/ath/ath10k/txrx.h b/drivers/net/wireless/ath/ath10k/txrx.h
new file mode 100644
index 0000000..e78632a
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/txrx.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifndef _TXRX_H_
+#define _TXRX_H_
+
+#include "htt.h"
+
+void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc);
+void ath10k_txrx_tx_completed(struct ath10k_htt *htt,
+			      const struct htt_tx_done *tx_done);
+void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info);
+
+struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
+				     const u8 *addr);
+int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id,
+				 const u8 *addr);
+int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id,
+				 const u8 *addr);
+
+void ath10k_peer_map_event(struct ath10k_htt *htt,
+			   struct htt_peer_map_event *ev);
+void ath10k_peer_unmap_event(struct ath10k_htt *htt,
+			     struct htt_peer_unmap_event *ev);
+
+#endif
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
new file mode 100644
index 0000000..7d4b798
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -0,0 +1,2081 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/skbuff.h>
+
+#include "core.h"
+#include "htc.h"
+#include "debug.h"
+#include "wmi.h"
+#include "mac.h"
+
+void ath10k_wmi_flush_tx(struct ath10k *ar)
+{
+	int ret;
+
+	ret = wait_event_timeout(ar->wmi.wq,
+				 atomic_read(&ar->wmi.pending_tx_count) == 0,
+				 5*HZ);
+	if (atomic_read(&ar->wmi.pending_tx_count) == 0)
+		return;
+
+	if (ret == 0)
+		ret = -ETIMEDOUT;
+
+	if (ret < 0)
+		ath10k_warn("wmi flush failed (%d)\n", ret);
+}
+
+int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
+{
+	int ret;
+	ret = wait_for_completion_timeout(&ar->wmi.service_ready,
+					  WMI_SERVICE_READY_TIMEOUT_HZ);
+	return ret;
+}
+
+int ath10k_wmi_wait_for_unified_ready(struct ath10k *ar)
+{
+	int ret;
+	ret = wait_for_completion_timeout(&ar->wmi.unified_ready,
+					  WMI_UNIFIED_READY_TIMEOUT_HZ);
+	return ret;
+}
+
+static struct sk_buff *ath10k_wmi_alloc_skb(u32 len)
+{
+	struct sk_buff *skb;
+	u32 round_len = roundup(len, 4);
+
+	skb = ath10k_htc_alloc_skb(WMI_SKB_HEADROOM + round_len);
+	if (!skb)
+		return NULL;
+
+	skb_reserve(skb, WMI_SKB_HEADROOM);
+	if (!IS_ALIGNED((unsigned long)skb->data, 4))
+		ath10k_warn("Unaligned WMI skb\n");
+
+	skb_put(skb, round_len);
+	memset(skb->data, 0, round_len);
+
+	return skb;
+}
+
+static void ath10k_wmi_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
+{
+	dev_kfree_skb(skb);
+
+	if (atomic_sub_return(1, &ar->wmi.pending_tx_count) == 0)
+		wake_up(&ar->wmi.wq);
+}
+
+/* WMI command API */
+static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
+			       enum wmi_cmd_id cmd_id)
+{
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
+	struct wmi_cmd_hdr *cmd_hdr;
+	int status;
+	u32 cmd = 0;
+
+	if (skb_push(skb, sizeof(struct wmi_cmd_hdr)) == NULL)
+		return -ENOMEM;
+
+	cmd |= SM(cmd_id, WMI_CMD_HDR_CMD_ID);
+
+	cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
+	cmd_hdr->cmd_id = __cpu_to_le32(cmd);
+
+	if (atomic_add_return(1, &ar->wmi.pending_tx_count) >
+	    WMI_MAX_PENDING_TX_COUNT) {
+		/* avoid using up memory when FW hangs */
+		atomic_dec(&ar->wmi.pending_tx_count);
+		return -EBUSY;
+	}
+
+	memset(skb_cb, 0, sizeof(*skb_cb));
+
+	trace_ath10k_wmi_cmd(cmd_id, skb->data, skb->len);
+
+	status = ath10k_htc_send(ar->htc, ar->wmi.eid, skb);
+	if (status) {
+		dev_kfree_skb_any(skb);
+		atomic_dec(&ar->wmi.pending_tx_count);
+		return status;
+	}
+
+	return 0;
+}
+
+static int ath10k_wmi_event_scan(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_scan_event *event = (struct wmi_scan_event *)skb->data;
+	enum wmi_scan_event_type event_type;
+	enum wmi_scan_completion_reason reason;
+	u32 freq;
+	u32 req_id;
+	u32 scan_id;
+	u32 vdev_id;
+
+	event_type = __le32_to_cpu(event->event_type);
+	reason     = __le32_to_cpu(event->reason);
+	freq       = __le32_to_cpu(event->channel_freq);
+	req_id     = __le32_to_cpu(event->scan_req_id);
+	scan_id    = __le32_to_cpu(event->scan_id);
+	vdev_id    = __le32_to_cpu(event->vdev_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_SCAN_EVENTID\n");
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "scan event type %d reason %d freq %d req_id %d "
+		   "scan_id %d vdev_id %d\n",
+		   event_type, reason, freq, req_id, scan_id, vdev_id);
+
+	spin_lock_bh(&ar->data_lock);
+
+	switch (event_type) {
+	case WMI_SCAN_EVENT_STARTED:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_STARTED\n");
+		if (ar->scan.in_progress && ar->scan.is_roc)
+			ieee80211_ready_on_channel(ar->hw);
+
+		complete(&ar->scan.started);
+		break;
+	case WMI_SCAN_EVENT_COMPLETED:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_COMPLETED\n");
+		switch (reason) {
+		case WMI_SCAN_REASON_COMPLETED:
+			ath10k_dbg(ATH10K_DBG_WMI, "SCAN_REASON_COMPLETED\n");
+			break;
+		case WMI_SCAN_REASON_CANCELLED:
+			ath10k_dbg(ATH10K_DBG_WMI, "SCAN_REASON_CANCELED\n");
+			break;
+		case WMI_SCAN_REASON_PREEMPTED:
+			ath10k_dbg(ATH10K_DBG_WMI, "SCAN_REASON_PREEMPTED\n");
+			break;
+		case WMI_SCAN_REASON_TIMEDOUT:
+			ath10k_dbg(ATH10K_DBG_WMI, "SCAN_REASON_TIMEDOUT\n");
+			break;
+		default:
+			break;
+		}
+
+		ar->scan_channel = NULL;
+		if (!ar->scan.in_progress) {
+			ath10k_warn("no scan requested, ignoring\n");
+			break;
+		}
+
+		if (ar->scan.is_roc) {
+			ath10k_offchan_tx_purge(ar);
+
+			if (!ar->scan.aborting)
+				ieee80211_remain_on_channel_expired(ar->hw);
+		} else {
+			ieee80211_scan_completed(ar->hw, ar->scan.aborting);
+		}
+
+		del_timer(&ar->scan.timeout);
+		complete_all(&ar->scan.completed);
+		ar->scan.in_progress = false;
+		break;
+	case WMI_SCAN_EVENT_BSS_CHANNEL:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_BSS_CHANNEL\n");
+		ar->scan_channel = NULL;
+		break;
+	case WMI_SCAN_EVENT_FOREIGN_CHANNEL:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_FOREIGN_CHANNEL\n");
+		ar->scan_channel = ieee80211_get_channel(ar->hw->wiphy, freq);
+		if (ar->scan.in_progress && ar->scan.is_roc &&
+		    ar->scan.roc_freq == freq) {
+			complete(&ar->scan.on_channel);
+		}
+		break;
+	case WMI_SCAN_EVENT_DEQUEUED:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_DEQUEUED\n");
+		break;
+	case WMI_SCAN_EVENT_PREEMPTED:
+		ath10k_dbg(ATH10K_DBG_WMI, "WMI_SCAN_EVENT_PREEMPTED\n");
+		break;
+	case WMI_SCAN_EVENT_START_FAILED:
+		ath10k_dbg(ATH10K_DBG_WMI, "WMI_SCAN_EVENT_START_FAILED\n");
+		break;
+	default:
+		break;
+	}
+
+	spin_unlock_bh(&ar->data_lock);
+	return 0;
+}
+
+static inline enum ieee80211_band phy_mode_to_band(u32 phy_mode)
+{
+	enum ieee80211_band band;
+
+	switch (phy_mode) {
+	case MODE_11A:
+	case MODE_11NA_HT20:
+	case MODE_11NA_HT40:
+	case MODE_11AC_VHT20:
+	case MODE_11AC_VHT40:
+	case MODE_11AC_VHT80:
+		band = IEEE80211_BAND_5GHZ;
+		break;
+	case MODE_11G:
+	case MODE_11B:
+	case MODE_11GONLY:
+	case MODE_11NG_HT20:
+	case MODE_11NG_HT40:
+	case MODE_11AC_VHT20_2G:
+	case MODE_11AC_VHT40_2G:
+	case MODE_11AC_VHT80_2G:
+	default:
+		band = IEEE80211_BAND_2GHZ;
+	}
+
+	return band;
+}
+
+static inline u8 get_rate_idx(u32 rate, enum ieee80211_band band)
+{
+	u8 rate_idx = 0;
+
+	/* rate in Kbps */
+	switch (rate) {
+	case 1000:
+		rate_idx = 0;
+		break;
+	case 2000:
+		rate_idx = 1;
+		break;
+	case 5500:
+		rate_idx = 2;
+		break;
+	case 11000:
+		rate_idx = 3;
+		break;
+	case 6000:
+		rate_idx = 4;
+		break;
+	case 9000:
+		rate_idx = 5;
+		break;
+	case 12000:
+		rate_idx = 6;
+		break;
+	case 18000:
+		rate_idx = 7;
+		break;
+	case 24000:
+		rate_idx = 8;
+		break;
+	case 36000:
+		rate_idx = 9;
+		break;
+	case 48000:
+		rate_idx = 10;
+		break;
+	case 54000:
+		rate_idx = 11;
+		break;
+	default:
+		break;
+	}
+
+	if (band == IEEE80211_BAND_5GHZ) {
+		if (rate_idx > 3)
+			/* Omit CCK rates */
+			rate_idx -= 4;
+		else
+			rate_idx = 0;
+	}
+
+	return rate_idx;
+}
+
+static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_mgmt_rx_event *event = (struct wmi_mgmt_rx_event *)skb->data;
+	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+	struct ieee80211_hdr *hdr;
+	u32 rx_status;
+	u32 channel;
+	u32 phy_mode;
+	u32 snr;
+	u32 rate;
+	u32 buf_len;
+	u16 fc;
+
+	channel   = __le32_to_cpu(event->hdr.channel);
+	buf_len   = __le32_to_cpu(event->hdr.buf_len);
+	rx_status = __le32_to_cpu(event->hdr.status);
+	snr       = __le32_to_cpu(event->hdr.snr);
+	phy_mode  = __le32_to_cpu(event->hdr.phy_mode);
+	rate	  = __le32_to_cpu(event->hdr.rate);
+
+	memset(status, 0, sizeof(*status));
+
+	ath10k_dbg(ATH10K_DBG_MGMT,
+		   "event mgmt rx status %08x\n", rx_status);
+
+	if (rx_status & WMI_RX_STATUS_ERR_DECRYPT) {
+		dev_kfree_skb(skb);
+		return 0;
+	}
+
+	if (rx_status & WMI_RX_STATUS_ERR_KEY_CACHE_MISS) {
+		dev_kfree_skb(skb);
+		return 0;
+	}
+
+	if (rx_status & WMI_RX_STATUS_ERR_CRC)
+		status->flag |= RX_FLAG_FAILED_FCS_CRC;
+	if (rx_status & WMI_RX_STATUS_ERR_MIC)
+		status->flag |= RX_FLAG_MMIC_ERROR;
+
+	status->band = phy_mode_to_band(phy_mode);
+	status->freq = ieee80211_channel_to_frequency(channel, status->band);
+	status->signal = snr + ATH10K_DEFAULT_NOISE_FLOOR;
+	status->rate_idx = get_rate_idx(rate, status->band);
+
+	skb_pull(skb, sizeof(event->hdr));
+
+	hdr = (struct ieee80211_hdr *)skb->data;
+	fc = le16_to_cpu(hdr->frame_control);
+
+	if (fc & IEEE80211_FCTL_PROTECTED) {
+		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
+				RX_FLAG_MMIC_STRIPPED;
+		hdr->frame_control = __cpu_to_le16(fc &
+					~IEEE80211_FCTL_PROTECTED);
+	}
+
+	ath10k_dbg(ATH10K_DBG_MGMT,
+		   "event mgmt rx skb %p len %d ftype %02x stype %02x\n",
+		   skb, skb->len,
+		   fc & IEEE80211_FCTL_FTYPE, fc & IEEE80211_FCTL_STYPE);
+
+	ath10k_dbg(ATH10K_DBG_MGMT,
+		   "event mgmt rx freq %d band %d snr %d, rate_idx %d\n",
+		   status->freq, status->band, status->signal,
+		   status->rate_idx);
+
+	/*
+	 * packets from HTC come aligned to 4byte boundaries
+	 * because they can originally come in along with a trailer
+	 */
+	skb_trim(skb, buf_len);
+
+	ieee80211_rx(ar->hw, skb);
+	return 0;
+}
+
+static void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_CHAN_INFO_EVENTID\n");
+}
+
+static void ath10k_wmi_event_echo(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_ECHO_EVENTID\n");
+}
+
+static void ath10k_wmi_event_debug_mesg(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_DEBUG_MESG_EVENTID\n");
+}
+
+static void ath10k_wmi_event_update_stats(struct ath10k *ar,
+					  struct sk_buff *skb)
+{
+	struct wmi_stats_event *ev = (struct wmi_stats_event *)skb->data;
+
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_UPDATE_STATS_EVENTID\n");
+
+	ath10k_debug_read_target_stats(ar, ev);
+}
+
+static void ath10k_wmi_event_vdev_start_resp(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	struct wmi_vdev_start_response_event *ev;
+
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_START_RESP_EVENTID\n");
+
+	ev = (struct wmi_vdev_start_response_event *)skb->data;
+
+	if (WARN_ON(__le32_to_cpu(ev->status)))
+		return;
+
+	complete(&ar->vdev_setup_done);
+}
+
+static void ath10k_wmi_event_vdev_stopped(struct ath10k *ar,
+					  struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_STOPPED_EVENTID\n");
+	complete(&ar->vdev_setup_done);
+}
+
+static void ath10k_wmi_event_peer_sta_kickout(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PEER_STA_KICKOUT_EVENTID\n");
+}
+
+/*
+ * FIXME
+ *
+ * We don't report to mac80211 sleep state of connected
+ * stations. Due to this mac80211 can't fill in TIM IE
+ * correctly.
+ *
+ * I know of no way of getting nullfunc frames that contain
+ * sleep transition from connected stations - these do not
+ * seem to be sent from the target to the host. There also
+ * doesn't seem to be a dedicated event for that. So the
+ * only way left to do this would be to read tim_bitmap
+ * during SWBA.
+ *
+ * We could probably try using tim_bitmap from SWBA to tell
+ * mac80211 which stations are asleep and which are not. The
+ * problem here is calling mac80211 functions so many times
+ * could take too long and make us miss the time to submit
+ * the beacon to the target.
+ *
+ * So as a workaround we try to extend the TIM IE if there
+ * is unicast buffered for stations with aid > 7 and fill it
+ * in ourselves.
+ */
+static void ath10k_wmi_update_tim(struct ath10k *ar,
+				  struct ath10k_vif *arvif,
+				  struct sk_buff *bcn,
+				  struct wmi_bcn_info *bcn_info)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)bcn->data;
+	struct ieee80211_tim_ie *tim;
+	u8 *ies, *ie;
+	u8 ie_len, pvm_len;
+
+	/* if next SWBA has no tim_changed the tim_bitmap is garbage.
+	 * we must copy the bitmap upon change and reuse it later */
+	if (__le32_to_cpu(bcn_info->tim_info.tim_changed)) {
+		int i;
+
+		BUILD_BUG_ON(sizeof(arvif->u.ap.tim_bitmap) !=
+			     sizeof(bcn_info->tim_info.tim_bitmap));
+
+		for (i = 0; i < sizeof(arvif->u.ap.tim_bitmap); i++) {
+			__le32 t = bcn_info->tim_info.tim_bitmap[i / 4];
+			u32 v = __le32_to_cpu(t);
+			arvif->u.ap.tim_bitmap[i] = (v >> ((i % 4) * 8)) & 0xFF;
+		}
+
+		/* FW reports either length 0 or 16
+		 * so we calculate this on our own */
+		arvif->u.ap.tim_len = 0;
+		for (i = 0; i < sizeof(arvif->u.ap.tim_bitmap); i++)
+			if (arvif->u.ap.tim_bitmap[i])
+				arvif->u.ap.tim_len = i;
+
+		arvif->u.ap.tim_len++;
+	}
+
+	ies = bcn->data;
+	ies += ieee80211_hdrlen(hdr->frame_control);
+	ies += 12; /* fixed parameters */
+
+	ie = (u8 *)cfg80211_find_ie(WLAN_EID_TIM, ies,
+				    (u8 *)skb_tail_pointer(bcn) - ies);
+	if (!ie) {
+		/* highly unlikely for mac80211 */
+		ath10k_warn("no tim ie found;\n");
+		return;
+	}
+
+	tim = (void *)ie + 2;
+	ie_len = ie[1];
+	pvm_len = ie_len - 3; /* exclude dtim count, dtim period, bmap ctl */
+
+	if (pvm_len < arvif->u.ap.tim_len) {
+		int expand_size = sizeof(arvif->u.ap.tim_bitmap) - pvm_len;
+		int move_size = skb_tail_pointer(bcn) - (ie + 2 + ie_len);
+		void *next_ie = ie + 2 + ie_len;
+
+		if (skb_put(bcn, expand_size)) {
+			memmove(next_ie + expand_size, next_ie, move_size);
+
+			ie[1] += expand_size;
+			ie_len += expand_size;
+			pvm_len += expand_size;
+		} else {
+			ath10k_warn("tim expansion failed\n");
+		}
+	}
+
+	if (pvm_len > sizeof(arvif->u.ap.tim_bitmap)) {
+		ath10k_warn("tim pvm length is too great (%d)\n", pvm_len);
+		return;
+	}
+
+	tim->bitmap_ctrl = !!__le32_to_cpu(bcn_info->tim_info.tim_mcast);
+	memcpy(tim->virtual_map, arvif->u.ap.tim_bitmap, pvm_len);
+
+	ath10k_dbg(ATH10K_DBG_MGMT, "dtim %d/%d mcast %d pvmlen %d\n",
+		   tim->dtim_count, tim->dtim_period,
+		   tim->bitmap_ctrl, pvm_len);
+}
+
+static void ath10k_p2p_fill_noa_ie(u8 *data, u32 len,
+				   struct wmi_p2p_noa_info *noa)
+{
+	struct ieee80211_p2p_noa_attr *noa_attr;
+	u8  ctwindow_oppps = noa->ctwindow_oppps;
+	u8 ctwindow = ctwindow_oppps >> WMI_P2P_OPPPS_CTWINDOW_OFFSET;
+	bool oppps = !!(ctwindow_oppps & WMI_P2P_OPPPS_ENABLE_BIT);
+	__le16 *noa_attr_len;
+	u16 attr_len;
+	u8 noa_descriptors = noa->num_descriptors;
+	int i;
+
+	/* P2P IE */
+	data[0] = WLAN_EID_VENDOR_SPECIFIC;
+	data[1] = len - 2;
+	data[2] = (WLAN_OUI_WFA >> 16) & 0xff;
+	data[3] = (WLAN_OUI_WFA >> 8) & 0xff;
+	data[4] = (WLAN_OUI_WFA >> 0) & 0xff;
+	data[5] = WLAN_OUI_TYPE_WFA_P2P;
+
+	/* NOA ATTR */
+	data[6] = IEEE80211_P2P_ATTR_ABSENCE_NOTICE;
+	noa_attr_len = (__le16 *)&data[7]; /* 2 bytes */
+	noa_attr = (struct ieee80211_p2p_noa_attr *)&data[9];
+
+	noa_attr->index = noa->index;
+	noa_attr->oppps_ctwindow = ctwindow;
+	if (oppps)
+		noa_attr->oppps_ctwindow |= IEEE80211_P2P_OPPPS_ENABLE_BIT;
+
+	for (i = 0; i < noa_descriptors; i++) {
+		noa_attr->desc[i].count =
+			__le32_to_cpu(noa->descriptors[i].type_count);
+		noa_attr->desc[i].duration = noa->descriptors[i].duration;
+		noa_attr->desc[i].interval = noa->descriptors[i].interval;
+		noa_attr->desc[i].start_time = noa->descriptors[i].start_time;
+	}
+
+	attr_len = 2; /* index + oppps_ctwindow */
+	attr_len += noa_descriptors * sizeof(struct ieee80211_p2p_noa_desc);
+	*noa_attr_len = __cpu_to_le16(attr_len);
+}
+
+static u32 ath10k_p2p_calc_noa_ie_len(struct wmi_p2p_noa_info *noa)
+{
+	u32 len = 0;
+	u8 noa_descriptors = noa->num_descriptors;
+	u8 opp_ps_info = noa->ctwindow_oppps;
+	bool opps_enabled = !!(opp_ps_info & WMI_P2P_OPPPS_ENABLE_BIT);
+
+
+	if (!noa_descriptors && !opps_enabled)
+		return len;
+
+	len += 1 + 1 + 4; /* EID + len + OUI */
+	len += 1 + 2; /* noa attr  + attr len */
+	len += 1 + 1; /* index + oppps_ctwindow */
+	len += noa_descriptors * sizeof(struct ieee80211_p2p_noa_desc);
+
+	return len;
+}
+
+static void ath10k_wmi_update_noa(struct ath10k *ar, struct ath10k_vif *arvif,
+				  struct sk_buff *bcn,
+				  struct wmi_bcn_info *bcn_info)
+{
+	struct wmi_p2p_noa_info *noa = &bcn_info->p2p_noa_info;
+	u8 *new_data, *old_data = arvif->u.ap.noa_data;
+	u32 new_len;
+
+	if (arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
+		return;
+
+	ath10k_dbg(ATH10K_DBG_MGMT, "noa changed: %d\n", noa->changed);
+	if (noa->changed & WMI_P2P_NOA_CHANGED_BIT) {
+		new_len = ath10k_p2p_calc_noa_ie_len(noa);
+		if (!new_len)
+			goto cleanup;
+
+		new_data = kmalloc(new_len, GFP_ATOMIC);
+		if (!new_data)
+			goto cleanup;
+
+		ath10k_p2p_fill_noa_ie(new_data, new_len, noa);
+
+		spin_lock_bh(&ar->data_lock);
+		arvif->u.ap.noa_data = new_data;
+		arvif->u.ap.noa_len = new_len;
+		spin_unlock_bh(&ar->data_lock);
+		kfree(old_data);
+	}
+
+	if (arvif->u.ap.noa_data)
+		if (!pskb_expand_head(bcn, 0, arvif->u.ap.noa_len, GFP_ATOMIC))
+			memcpy(skb_put(bcn, arvif->u.ap.noa_len),
+			       arvif->u.ap.noa_data,
+			       arvif->u.ap.noa_len);
+	return;
+
+cleanup:
+	spin_lock_bh(&ar->data_lock);
+	arvif->u.ap.noa_data = NULL;
+	arvif->u.ap.noa_len = 0;
+	spin_unlock_bh(&ar->data_lock);
+	kfree(old_data);
+}
+
+
+static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_host_swba_event *ev;
+	u32 map;
+	int i = -1;
+	struct wmi_bcn_info *bcn_info;
+	struct ath10k_vif *arvif;
+	struct wmi_bcn_tx_arg arg;
+	struct sk_buff *bcn;
+	int vdev_id = 0;
+	int ret;
+
+	ath10k_dbg(ATH10K_DBG_MGMT, "WMI_HOST_SWBA_EVENTID\n");
+
+	ev = (struct wmi_host_swba_event *)skb->data;
+	map = __le32_to_cpu(ev->vdev_map);
+
+	ath10k_dbg(ATH10K_DBG_MGMT, "host swba:\n"
+		   "-vdev map 0x%x\n",
+		   ev->vdev_map);
+
+	for (; map; map >>= 1, vdev_id++) {
+		if (!(map & 0x1))
+			continue;
+
+		i++;
+
+		if (i >= WMI_MAX_AP_VDEV) {
+			ath10k_warn("swba has corrupted vdev map\n");
+			break;
+		}
+
+		bcn_info = &ev->bcn_info[i];
+
+		ath10k_dbg(ATH10K_DBG_MGMT,
+			   "-bcn_info[%d]:\n"
+			   "--tim_len %d\n"
+			   "--tim_mcast %d\n"
+			   "--tim_changed %d\n"
+			   "--tim_num_ps_pending %d\n"
+			   "--tim_bitmap 0x%08x%08x%08x%08x\n",
+			   i,
+			   __le32_to_cpu(bcn_info->tim_info.tim_len),
+			   __le32_to_cpu(bcn_info->tim_info.tim_mcast),
+			   __le32_to_cpu(bcn_info->tim_info.tim_changed),
+			   __le32_to_cpu(bcn_info->tim_info.tim_num_ps_pending),
+			   __le32_to_cpu(bcn_info->tim_info.tim_bitmap[3]),
+			   __le32_to_cpu(bcn_info->tim_info.tim_bitmap[2]),
+			   __le32_to_cpu(bcn_info->tim_info.tim_bitmap[1]),
+			   __le32_to_cpu(bcn_info->tim_info.tim_bitmap[0]));
+
+		arvif = ath10k_get_arvif(ar, vdev_id);
+		if (arvif == NULL) {
+			ath10k_warn("no vif for vdev_id %d found\n", vdev_id);
+			continue;
+		}
+
+		bcn = ieee80211_beacon_get(ar->hw, arvif->vif);
+		if (!bcn) {
+			ath10k_warn("could not get mac80211 beacon\n");
+			continue;
+		}
+
+		ath10k_tx_h_seq_no(bcn);
+		ath10k_wmi_update_tim(ar, arvif, bcn, bcn_info);
+		ath10k_wmi_update_noa(ar, arvif, bcn, bcn_info);
+
+		arg.vdev_id = arvif->vdev_id;
+		arg.tx_rate = 0;
+		arg.tx_power = 0;
+		arg.bcn = bcn->data;
+		arg.bcn_len = bcn->len;
+
+		ret = ath10k_wmi_beacon_send(ar, &arg);
+		if (ret)
+			ath10k_warn("could not send beacon (%d)\n", ret);
+
+		dev_kfree_skb_any(bcn);
+	}
+}
+
+static void ath10k_wmi_event_tbttoffset_update(struct ath10k *ar,
+					       struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_TBTTOFFSET_UPDATE_EVENTID\n");
+}
+
+static void ath10k_wmi_event_phyerr(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PHYERR_EVENTID\n");
+}
+
+static void ath10k_wmi_event_roam(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_ROAM_EVENTID\n");
+}
+
+static void ath10k_wmi_event_profile_match(struct ath10k *ar,
+				    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PROFILE_MATCH\n");
+}
+
+static void ath10k_wmi_event_debug_print(struct ath10k *ar,
+				  struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_DEBUG_PRINT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_pdev_qvit(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PDEV_QVIT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_wlan_profile_data(struct ath10k *ar,
+					       struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_WLAN_PROFILE_DATA_EVENTID\n");
+}
+
+static void ath10k_wmi_event_rtt_measurement_report(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_RTT_MEASUREMENT_REPORT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_tsf_measurement_report(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_TSF_MEASUREMENT_REPORT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_rtt_error_report(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_RTT_ERROR_REPORT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_wow_wakeup_host(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_WOW_WAKEUP_HOST_EVENTID\n");
+}
+
+static void ath10k_wmi_event_dcs_interference(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_DCS_INTERFERENCE_EVENTID\n");
+}
+
+static void ath10k_wmi_event_pdev_tpc_config(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PDEV_TPC_CONFIG_EVENTID\n");
+}
+
+static void ath10k_wmi_event_pdev_ftm_intg(struct ath10k *ar,
+					   struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PDEV_FTM_INTG_EVENTID\n");
+}
+
+static void ath10k_wmi_event_gtk_offload_status(struct ath10k *ar,
+					 struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_GTK_OFFLOAD_STATUS_EVENTID\n");
+}
+
+static void ath10k_wmi_event_gtk_rekey_fail(struct ath10k *ar,
+					    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_GTK_REKEY_FAIL_EVENTID\n");
+}
+
+static void ath10k_wmi_event_delba_complete(struct ath10k *ar,
+					    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_TX_DELBA_COMPLETE_EVENTID\n");
+}
+
+static void ath10k_wmi_event_addba_complete(struct ath10k *ar,
+					    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_TX_ADDBA_COMPLETE_EVENTID\n");
+}
+
+static void ath10k_wmi_event_vdev_install_key_complete(struct ath10k *ar,
+						struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_INSTALL_KEY_COMPLETE_EVENTID\n");
+}
+
+static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	struct wmi_service_ready_event *ev = (void *)skb->data;
+
+	if (skb->len < sizeof(*ev)) {
+		ath10k_warn("Service ready event was %d B but expected %zu B. Wrong firmware version?\n",
+			    skb->len, sizeof(*ev));
+		return;
+	}
+
+	ar->hw_min_tx_power = __le32_to_cpu(ev->hw_min_tx_power);
+	ar->hw_max_tx_power = __le32_to_cpu(ev->hw_max_tx_power);
+	ar->ht_cap_info = __le32_to_cpu(ev->ht_cap_info);
+	ar->vht_cap_info = __le32_to_cpu(ev->vht_cap_info);
+	ar->fw_version_major =
+		(__le32_to_cpu(ev->sw_version) & 0xff000000) >> 24;
+	ar->fw_version_minor = (__le32_to_cpu(ev->sw_version) & 0x00ffffff);
+	ar->fw_version_release =
+		(__le32_to_cpu(ev->sw_version_1) & 0xffff0000) >> 16;
+	ar->fw_version_build = (__le32_to_cpu(ev->sw_version_1) & 0x0000ffff);
+	ar->phy_capability = __le32_to_cpu(ev->phy_capability);
+
+	ar->ath_common.regulatory.current_rd =
+		__le32_to_cpu(ev->hal_reg_capabilities.eeprom_rd);
+
+	ath10k_debug_read_service_map(ar, ev->wmi_service_bitmap,
+				      sizeof(ev->wmi_service_bitmap));
+
+	if (strlen(ar->hw->wiphy->fw_version) == 0) {
+		snprintf(ar->hw->wiphy->fw_version,
+			 sizeof(ar->hw->wiphy->fw_version),
+			 "%u.%u.%u.%u",
+			 ar->fw_version_major,
+			 ar->fw_version_minor,
+			 ar->fw_version_release,
+			 ar->fw_version_build);
+	}
+
+	/* FIXME: it probably should be better to support this */
+	if (__le32_to_cpu(ev->num_mem_reqs) > 0) {
+		ath10k_warn("target requested %d memory chunks; ignoring\n",
+			    __le32_to_cpu(ev->num_mem_reqs));
+	}
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi event service ready sw_ver 0x%08x sw_ver1 0x%08x abi_ver %u phy_cap 0x%08x ht_cap 0x%08x vht_cap 0x%08x vht_supp_msc 0x%08x sys_cap_info 0x%08x mem_reqs %u\n",
+		   __le32_to_cpu(ev->sw_version),
+		   __le32_to_cpu(ev->sw_version_1),
+		   __le32_to_cpu(ev->abi_version),
+		   __le32_to_cpu(ev->phy_capability),
+		   __le32_to_cpu(ev->ht_cap_info),
+		   __le32_to_cpu(ev->vht_cap_info),
+		   __le32_to_cpu(ev->vht_supp_mcs),
+		   __le32_to_cpu(ev->sys_cap_info),
+		   __le32_to_cpu(ev->num_mem_reqs));
+
+	complete(&ar->wmi.service_ready);
+}
+
+static int ath10k_wmi_ready_event_rx(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_ready_event *ev = (struct wmi_ready_event *)skb->data;
+
+	if (WARN_ON(skb->len < sizeof(*ev)))
+		return -EINVAL;
+
+	memcpy(ar->mac_addr, ev->mac_addr.addr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi event ready sw_version %u abi_version %u mac_addr %pM status %d\n",
+		   __le32_to_cpu(ev->sw_version),
+		   __le32_to_cpu(ev->abi_version),
+		   ev->mac_addr.addr,
+		   __le32_to_cpu(ev->status));
+
+	complete(&ar->wmi.unified_ready);
+	return 0;
+}
+
+static void ath10k_wmi_event_process(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_cmd_hdr *cmd_hdr;
+	enum wmi_event_id id;
+	u16 len;
+
+	cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
+	id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID);
+
+	if (skb_pull(skb, sizeof(struct wmi_cmd_hdr)) == NULL)
+		return;
+
+	len = skb->len;
+
+	trace_ath10k_wmi_event(id, skb->data, skb->len);
+
+	switch (id) {
+	case WMI_MGMT_RX_EVENTID:
+		ath10k_wmi_event_mgmt_rx(ar, skb);
+		/* mgmt_rx() owns the skb now! */
+		return;
+	case WMI_SCAN_EVENTID:
+		ath10k_wmi_event_scan(ar, skb);
+		break;
+	case WMI_CHAN_INFO_EVENTID:
+		ath10k_wmi_event_chan_info(ar, skb);
+		break;
+	case WMI_ECHO_EVENTID:
+		ath10k_wmi_event_echo(ar, skb);
+		break;
+	case WMI_DEBUG_MESG_EVENTID:
+		ath10k_wmi_event_debug_mesg(ar, skb);
+		break;
+	case WMI_UPDATE_STATS_EVENTID:
+		ath10k_wmi_event_update_stats(ar, skb);
+		break;
+	case WMI_VDEV_START_RESP_EVENTID:
+		ath10k_wmi_event_vdev_start_resp(ar, skb);
+		break;
+	case WMI_VDEV_STOPPED_EVENTID:
+		ath10k_wmi_event_vdev_stopped(ar, skb);
+		break;
+	case WMI_PEER_STA_KICKOUT_EVENTID:
+		ath10k_wmi_event_peer_sta_kickout(ar, skb);
+		break;
+	case WMI_HOST_SWBA_EVENTID:
+		ath10k_wmi_event_host_swba(ar, skb);
+		break;
+	case WMI_TBTTOFFSET_UPDATE_EVENTID:
+		ath10k_wmi_event_tbttoffset_update(ar, skb);
+		break;
+	case WMI_PHYERR_EVENTID:
+		ath10k_wmi_event_phyerr(ar, skb);
+		break;
+	case WMI_ROAM_EVENTID:
+		ath10k_wmi_event_roam(ar, skb);
+		break;
+	case WMI_PROFILE_MATCH:
+		ath10k_wmi_event_profile_match(ar, skb);
+		break;
+	case WMI_DEBUG_PRINT_EVENTID:
+		ath10k_wmi_event_debug_print(ar, skb);
+		break;
+	case WMI_PDEV_QVIT_EVENTID:
+		ath10k_wmi_event_pdev_qvit(ar, skb);
+		break;
+	case WMI_WLAN_PROFILE_DATA_EVENTID:
+		ath10k_wmi_event_wlan_profile_data(ar, skb);
+		break;
+	case WMI_RTT_MEASUREMENT_REPORT_EVENTID:
+		ath10k_wmi_event_rtt_measurement_report(ar, skb);
+		break;
+	case WMI_TSF_MEASUREMENT_REPORT_EVENTID:
+		ath10k_wmi_event_tsf_measurement_report(ar, skb);
+		break;
+	case WMI_RTT_ERROR_REPORT_EVENTID:
+		ath10k_wmi_event_rtt_error_report(ar, skb);
+		break;
+	case WMI_WOW_WAKEUP_HOST_EVENTID:
+		ath10k_wmi_event_wow_wakeup_host(ar, skb);
+		break;
+	case WMI_DCS_INTERFERENCE_EVENTID:
+		ath10k_wmi_event_dcs_interference(ar, skb);
+		break;
+	case WMI_PDEV_TPC_CONFIG_EVENTID:
+		ath10k_wmi_event_pdev_tpc_config(ar, skb);
+		break;
+	case WMI_PDEV_FTM_INTG_EVENTID:
+		ath10k_wmi_event_pdev_ftm_intg(ar, skb);
+		break;
+	case WMI_GTK_OFFLOAD_STATUS_EVENTID:
+		ath10k_wmi_event_gtk_offload_status(ar, skb);
+		break;
+	case WMI_GTK_REKEY_FAIL_EVENTID:
+		ath10k_wmi_event_gtk_rekey_fail(ar, skb);
+		break;
+	case WMI_TX_DELBA_COMPLETE_EVENTID:
+		ath10k_wmi_event_delba_complete(ar, skb);
+		break;
+	case WMI_TX_ADDBA_COMPLETE_EVENTID:
+		ath10k_wmi_event_addba_complete(ar, skb);
+		break;
+	case WMI_VDEV_INSTALL_KEY_COMPLETE_EVENTID:
+		ath10k_wmi_event_vdev_install_key_complete(ar, skb);
+		break;
+	case WMI_SERVICE_READY_EVENTID:
+		ath10k_wmi_service_ready_event_rx(ar, skb);
+		break;
+	case WMI_READY_EVENTID:
+		ath10k_wmi_ready_event_rx(ar, skb);
+		break;
+	default:
+		ath10k_warn("Unknown eventid: %d\n", id);
+		break;
+	}
+
+	dev_kfree_skb(skb);
+}
+
+static void ath10k_wmi_event_work(struct work_struct *work)
+{
+	struct ath10k *ar = container_of(work, struct ath10k,
+					 wmi.wmi_event_work);
+	struct sk_buff *skb;
+
+	for (;;) {
+		skb = skb_dequeue(&ar->wmi.wmi_event_list);
+		if (!skb)
+			break;
+
+		ath10k_wmi_event_process(ar, skb);
+	}
+}
+
+static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_cmd_hdr *cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
+	enum wmi_event_id event_id;
+
+	event_id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID);
+
+	/* some events require to be handled ASAP
+	 * thus can't be defered to a worker thread */
+	switch (event_id) {
+	case WMI_HOST_SWBA_EVENTID:
+	case WMI_MGMT_RX_EVENTID:
+		ath10k_wmi_event_process(ar, skb);
+		return;
+	default:
+		break;
+	}
+
+	skb_queue_tail(&ar->wmi.wmi_event_list, skb);
+	queue_work(ar->workqueue, &ar->wmi.wmi_event_work);
+}
+
+/* WMI Initialization functions */
+int ath10k_wmi_attach(struct ath10k *ar)
+{
+	init_completion(&ar->wmi.service_ready);
+	init_completion(&ar->wmi.unified_ready);
+	init_waitqueue_head(&ar->wmi.wq);
+
+	skb_queue_head_init(&ar->wmi.wmi_event_list);
+	INIT_WORK(&ar->wmi.wmi_event_work, ath10k_wmi_event_work);
+
+	return 0;
+}
+
+void ath10k_wmi_detach(struct ath10k *ar)
+{
+	/* HTC should've drained the packets already */
+	if (WARN_ON(atomic_read(&ar->wmi.pending_tx_count) > 0))
+		ath10k_warn("there are still pending packets\n");
+
+	cancel_work_sync(&ar->wmi.wmi_event_work);
+	skb_queue_purge(&ar->wmi.wmi_event_list);
+}
+
+int ath10k_wmi_connect_htc_service(struct ath10k *ar)
+{
+	int status;
+	struct ath10k_htc_svc_conn_req conn_req;
+	struct ath10k_htc_svc_conn_resp conn_resp;
+
+	memset(&conn_req, 0, sizeof(conn_req));
+	memset(&conn_resp, 0, sizeof(conn_resp));
+
+	/* these fields are the same for all service endpoints */
+	conn_req.ep_ops.ep_tx_complete = ath10k_wmi_htc_tx_complete;
+	conn_req.ep_ops.ep_rx_complete = ath10k_wmi_process_rx;
+
+	/* connect to control service */
+	conn_req.service_id = ATH10K_HTC_SVC_ID_WMI_CONTROL;
+
+	status = ath10k_htc_connect_service(ar->htc, &conn_req, &conn_resp);
+	if (status) {
+		ath10k_warn("failed to connect to WMI CONTROL service status: %d\n",
+			    status);
+		return status;
+	}
+
+	ar->wmi.eid = conn_resp.eid;
+	return 0;
+}
+
+int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
+				  u16 rd5g, u16 ctl2g, u16 ctl5g)
+{
+	struct wmi_pdev_set_regdomain_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_set_regdomain_cmd *)skb->data;
+	cmd->reg_domain = __cpu_to_le32(rd);
+	cmd->reg_domain_2G = __cpu_to_le32(rd2g);
+	cmd->reg_domain_5G = __cpu_to_le32(rd5g);
+	cmd->conformance_test_limit_2G = __cpu_to_le32(ctl2g);
+	cmd->conformance_test_limit_5G = __cpu_to_le32(ctl5g);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi pdev regdomain rd %x rd2g %x rd5g %x ctl2g %x ctl5g %x\n",
+		   rd, rd2g, rd5g, ctl2g, ctl5g);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_REGDOMAIN_CMDID);
+}
+
+int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
+				const struct wmi_channel_arg *arg)
+{
+	struct wmi_set_channel_cmd *cmd;
+	struct sk_buff *skb;
+
+	if (arg->passive)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_set_channel_cmd *)skb->data;
+	cmd->chan.mhz               = __cpu_to_le32(arg->freq);
+	cmd->chan.band_center_freq1 = __cpu_to_le32(arg->freq);
+	cmd->chan.mode              = arg->mode;
+	cmd->chan.min_power         = arg->min_power;
+	cmd->chan.max_power         = arg->max_power;
+	cmd->chan.reg_power         = arg->max_reg_power;
+	cmd->chan.reg_classid       = arg->reg_class_id;
+	cmd->chan.antenna_max       = arg->max_antenna_gain;
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi set channel mode %d freq %d\n",
+		   arg->mode, arg->freq);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_CHANNEL_CMDID);
+}
+
+int ath10k_wmi_pdev_suspend_target(struct ath10k *ar)
+{
+	struct wmi_pdev_suspend_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_suspend_cmd *)skb->data;
+	cmd->suspend_opt = WMI_PDEV_SUSPEND;
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SUSPEND_CMDID);
+}
+
+int ath10k_wmi_pdev_resume_target(struct ath10k *ar)
+{
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(0);
+	if (skb == NULL)
+		return -ENOMEM;
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_RESUME_CMDID);
+}
+
+int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
+			      u32 value)
+{
+	struct wmi_pdev_set_param_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_set_param_cmd *)skb->data;
+	cmd->param_id    = __cpu_to_le32(id);
+	cmd->param_value = __cpu_to_le32(value);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi pdev set param %d value %d\n",
+		   id, value);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_PARAM_CMDID);
+}
+
+int ath10k_wmi_cmd_init(struct ath10k *ar)
+{
+	struct wmi_init_cmd *cmd;
+	struct sk_buff *buf;
+	struct wmi_resource_config config = {};
+	u32 val;
+
+	config.num_vdevs = __cpu_to_le32(TARGET_NUM_VDEVS);
+	config.num_peers = __cpu_to_le32(TARGET_NUM_PEERS + TARGET_NUM_VDEVS);
+	config.num_offload_peers = __cpu_to_le32(TARGET_NUM_OFFLOAD_PEERS);
+
+	config.num_offload_reorder_bufs =
+		__cpu_to_le32(TARGET_NUM_OFFLOAD_REORDER_BUFS);
+
+	config.num_peer_keys = __cpu_to_le32(TARGET_NUM_PEER_KEYS);
+	config.num_tids = __cpu_to_le32(TARGET_NUM_TIDS);
+	config.ast_skid_limit = __cpu_to_le32(TARGET_AST_SKID_LIMIT);
+	config.tx_chain_mask = __cpu_to_le32(TARGET_TX_CHAIN_MASK);
+	config.rx_chain_mask = __cpu_to_le32(TARGET_RX_CHAIN_MASK);
+	config.rx_timeout_pri_vo = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_vi = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_be = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_bk = __cpu_to_le32(TARGET_RX_TIMEOUT_HI_PRI);
+	config.rx_decap_mode = __cpu_to_le32(TARGET_RX_DECAP_MODE);
+
+	config.scan_max_pending_reqs =
+		__cpu_to_le32(TARGET_SCAN_MAX_PENDING_REQS);
+
+	config.bmiss_offload_max_vdev =
+		__cpu_to_le32(TARGET_BMISS_OFFLOAD_MAX_VDEV);
+
+	config.roam_offload_max_vdev =
+		__cpu_to_le32(TARGET_ROAM_OFFLOAD_MAX_VDEV);
+
+	config.roam_offload_max_ap_profiles =
+		__cpu_to_le32(TARGET_ROAM_OFFLOAD_MAX_AP_PROFILES);
+
+	config.num_mcast_groups = __cpu_to_le32(TARGET_NUM_MCAST_GROUPS);
+	config.num_mcast_table_elems =
+		__cpu_to_le32(TARGET_NUM_MCAST_TABLE_ELEMS);
+
+	config.mcast2ucast_mode = __cpu_to_le32(TARGET_MCAST2UCAST_MODE);
+	config.tx_dbg_log_size = __cpu_to_le32(TARGET_TX_DBG_LOG_SIZE);
+	config.num_wds_entries = __cpu_to_le32(TARGET_NUM_WDS_ENTRIES);
+	config.dma_burst_size = __cpu_to_le32(TARGET_DMA_BURST_SIZE);
+	config.mac_aggr_delim = __cpu_to_le32(TARGET_MAC_AGGR_DELIM);
+
+	val = TARGET_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK;
+	config.rx_skip_defrag_timeout_dup_detection_check = __cpu_to_le32(val);
+
+	config.vow_config = __cpu_to_le32(TARGET_VOW_CONFIG);
+
+	config.gtk_offload_max_vdev =
+		__cpu_to_le32(TARGET_GTK_OFFLOAD_MAX_VDEV);
+
+	config.num_msdu_desc = __cpu_to_le32(TARGET_NUM_MSDU_DESC);
+	config.max_frag_entries = __cpu_to_le32(TARGET_MAX_FRAG_ENTRIES);
+
+	buf = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!buf)
+		return -ENOMEM;
+
+	cmd = (struct wmi_init_cmd *)buf->data;
+	cmd->num_host_mem_chunks = 0;
+	memcpy(&cmd->resource_config, &config, sizeof(config));
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi init\n");
+	return ath10k_wmi_cmd_send(ar, buf, WMI_INIT_CMDID);
+}
+
+static int ath10k_wmi_start_scan_calc_len(const struct wmi_start_scan_arg *arg)
+{
+	int len;
+
+	len = sizeof(struct wmi_start_scan_cmd);
+
+	if (arg->ie_len) {
+		if (!arg->ie)
+			return -EINVAL;
+		if (arg->ie_len > WLAN_SCAN_PARAMS_MAX_IE_LEN)
+			return -EINVAL;
+
+		len += sizeof(struct wmi_ie_data);
+		len += roundup(arg->ie_len, 4);
+	}
+
+	if (arg->n_channels) {
+		if (!arg->channels)
+			return -EINVAL;
+		if (arg->n_channels > ARRAY_SIZE(arg->channels))
+			return -EINVAL;
+
+		len += sizeof(struct wmi_chan_list);
+		len += sizeof(__le32) * arg->n_channels;
+	}
+
+	if (arg->n_ssids) {
+		if (!arg->ssids)
+			return -EINVAL;
+		if (arg->n_ssids > WLAN_SCAN_PARAMS_MAX_SSID)
+			return -EINVAL;
+
+		len += sizeof(struct wmi_ssid_list);
+		len += sizeof(struct wmi_ssid) * arg->n_ssids;
+	}
+
+	if (arg->n_bssids) {
+		if (!arg->bssids)
+			return -EINVAL;
+		if (arg->n_bssids > WLAN_SCAN_PARAMS_MAX_BSSID)
+			return -EINVAL;
+
+		len += sizeof(struct wmi_bssid_list);
+		len += sizeof(struct wmi_mac_addr) * arg->n_bssids;
+	}
+
+	return len;
+}
+
+int ath10k_wmi_start_scan(struct ath10k *ar,
+			  const struct wmi_start_scan_arg *arg)
+{
+	struct wmi_start_scan_cmd *cmd;
+	struct sk_buff *skb;
+	struct wmi_ie_data *ie;
+	struct wmi_chan_list *channels;
+	struct wmi_ssid_list *ssids;
+	struct wmi_bssid_list *bssids;
+	u32 scan_id;
+	u32 scan_req_id;
+	int off;
+	int len = 0;
+	int i;
+
+	len = ath10k_wmi_start_scan_calc_len(arg);
+	if (len < 0)
+		return len; /* len contains error code here */
+
+	skb = ath10k_wmi_alloc_skb(len);
+	if (!skb)
+		return -ENOMEM;
+
+	scan_id  = WMI_HOST_SCAN_REQ_ID_PREFIX;
+	scan_id |= arg->scan_id;
+
+	scan_req_id  = WMI_HOST_SCAN_REQUESTOR_ID_PREFIX;
+	scan_req_id |= arg->scan_req_id;
+
+	cmd = (struct wmi_start_scan_cmd *)skb->data;
+	cmd->scan_id            = __cpu_to_le32(scan_id);
+	cmd->scan_req_id        = __cpu_to_le32(scan_req_id);
+	cmd->vdev_id            = __cpu_to_le32(arg->vdev_id);
+	cmd->scan_priority      = __cpu_to_le32(arg->scan_priority);
+	cmd->notify_scan_events = __cpu_to_le32(arg->notify_scan_events);
+	cmd->dwell_time_active  = __cpu_to_le32(arg->dwell_time_active);
+	cmd->dwell_time_passive = __cpu_to_le32(arg->dwell_time_passive);
+	cmd->min_rest_time      = __cpu_to_le32(arg->min_rest_time);
+	cmd->max_rest_time      = __cpu_to_le32(arg->max_rest_time);
+	cmd->repeat_probe_time  = __cpu_to_le32(arg->repeat_probe_time);
+	cmd->probe_spacing_time = __cpu_to_le32(arg->probe_spacing_time);
+	cmd->idle_time          = __cpu_to_le32(arg->idle_time);
+	cmd->max_scan_time      = __cpu_to_le32(arg->max_scan_time);
+	cmd->probe_delay        = __cpu_to_le32(arg->probe_delay);
+	cmd->scan_ctrl_flags    = __cpu_to_le32(arg->scan_ctrl_flags);
+
+	/* TLV list starts after fields included in the struct */
+	off = sizeof(*cmd);
+
+	if (arg->n_channels) {
+		channels = (void *)skb->data + off;
+		channels->tag = __cpu_to_le32(WMI_CHAN_LIST_TAG);
+		channels->num_chan = __cpu_to_le32(arg->n_channels);
+
+		for (i = 0; i < arg->n_channels; i++)
+			channels->channel_list[i] =
+				__cpu_to_le32(arg->channels[i]);
+
+		off += sizeof(*channels);
+		off += sizeof(__le32) * arg->n_channels;
+	}
+
+	if (arg->n_ssids) {
+		ssids = (void *)skb->data + off;
+		ssids->tag = __cpu_to_le32(WMI_SSID_LIST_TAG);
+		ssids->num_ssids = __cpu_to_le32(arg->n_ssids);
+
+		for (i = 0; i < arg->n_ssids; i++) {
+			ssids->ssids[i].ssid_len =
+				__cpu_to_le32(arg->ssids[i].len);
+			memcpy(&ssids->ssids[i].ssid,
+			       arg->ssids[i].ssid,
+			       arg->ssids[i].len);
+		}
+
+		off += sizeof(*ssids);
+		off += sizeof(struct wmi_ssid) * arg->n_ssids;
+	}
+
+	if (arg->n_bssids) {
+		bssids = (void *)skb->data + off;
+		bssids->tag = __cpu_to_le32(WMI_BSSID_LIST_TAG);
+		bssids->num_bssid = __cpu_to_le32(arg->n_bssids);
+
+		for (i = 0; i < arg->n_bssids; i++)
+			memcpy(&bssids->bssid_list[i],
+			       arg->bssids[i].bssid,
+			       ETH_ALEN);
+
+		off += sizeof(*bssids);
+		off += sizeof(struct wmi_mac_addr) * arg->n_bssids;
+	}
+
+	if (arg->ie_len) {
+		ie = (void *)skb->data + off;
+		ie->tag = __cpu_to_le32(WMI_IE_TAG);
+		ie->ie_len = __cpu_to_le32(arg->ie_len);
+		memcpy(ie->ie_data, arg->ie, arg->ie_len);
+
+		off += sizeof(*ie);
+		off += roundup(arg->ie_len, 4);
+	}
+
+	if (off != skb->len) {
+		dev_kfree_skb(skb);
+		return -EINVAL;
+	}
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi start scan\n");
+	return ath10k_wmi_cmd_send(ar, skb, WMI_START_SCAN_CMDID);
+}
+
+void ath10k_wmi_start_scan_init(struct ath10k *ar,
+				struct wmi_start_scan_arg *arg)
+{
+	/* setup commonly used values */
+	arg->scan_req_id = 1;
+	arg->scan_priority = WMI_SCAN_PRIORITY_LOW;
+	arg->dwell_time_active = 50;
+	arg->dwell_time_passive = 150;
+	arg->min_rest_time = 50;
+	arg->max_rest_time = 500;
+	arg->repeat_probe_time = 0;
+	arg->probe_spacing_time = 0;
+	arg->idle_time = 0;
+	arg->max_scan_time = 5000;
+	arg->probe_delay = 5;
+	arg->notify_scan_events = WMI_SCAN_EVENT_STARTED
+		| WMI_SCAN_EVENT_COMPLETED
+		| WMI_SCAN_EVENT_BSS_CHANNEL
+		| WMI_SCAN_EVENT_FOREIGN_CHANNEL
+		| WMI_SCAN_EVENT_DEQUEUED;
+	arg->scan_ctrl_flags |= WMI_SCAN_ADD_OFDM_RATES;
+	arg->scan_ctrl_flags |= WMI_SCAN_CHAN_STAT_EVENT;
+	arg->n_bssids = 1;
+	arg->bssids[0].bssid = "\xFF\xFF\xFF\xFF\xFF\xFF";
+}
+
+int ath10k_wmi_stop_scan(struct ath10k *ar, const struct wmi_stop_scan_arg *arg)
+{
+	struct wmi_stop_scan_cmd *cmd;
+	struct sk_buff *skb;
+	u32 scan_id;
+	u32 req_id;
+
+	if (arg->req_id > 0xFFF)
+		return -EINVAL;
+	if (arg->req_type == WMI_SCAN_STOP_ONE && arg->u.scan_id > 0xFFF)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	scan_id = arg->u.scan_id;
+	scan_id |= WMI_HOST_SCAN_REQ_ID_PREFIX;
+
+	req_id = arg->req_id;
+	req_id |= WMI_HOST_SCAN_REQUESTOR_ID_PREFIX;
+
+	cmd = (struct wmi_stop_scan_cmd *)skb->data;
+	cmd->req_type    = __cpu_to_le32(arg->req_type);
+	cmd->vdev_id     = __cpu_to_le32(arg->u.vdev_id);
+	cmd->scan_id     = __cpu_to_le32(scan_id);
+	cmd->scan_req_id = __cpu_to_le32(req_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi stop scan reqid %d req_type %d vdev/scan_id %d\n",
+		   arg->req_id, arg->req_type, arg->u.scan_id);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_STOP_SCAN_CMDID);
+}
+
+int ath10k_wmi_vdev_create(struct ath10k *ar, u32 vdev_id,
+			   enum wmi_vdev_type type,
+			   enum wmi_vdev_subtype subtype,
+			   const u8 macaddr[ETH_ALEN])
+{
+	struct wmi_vdev_create_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_create_cmd *)skb->data;
+	cmd->vdev_id      = __cpu_to_le32(vdev_id);
+	cmd->vdev_type    = __cpu_to_le32(type);
+	cmd->vdev_subtype = __cpu_to_le32(subtype);
+	memcpy(cmd->vdev_macaddr.addr, macaddr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "WMI vdev create: id %d type %d subtype %d macaddr %pM\n",
+		   vdev_id, type, subtype, macaddr);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_CREATE_CMDID);
+}
+
+int ath10k_wmi_vdev_delete(struct ath10k *ar, u32 vdev_id)
+{
+	struct wmi_vdev_delete_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_delete_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "WMI vdev delete id %d\n", vdev_id);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_DELETE_CMDID);
+}
+
+static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
+				const struct wmi_vdev_start_request_arg *arg,
+				enum wmi_cmd_id cmd_id)
+{
+	struct wmi_vdev_start_request_cmd *cmd;
+	struct sk_buff *skb;
+	const char *cmdname;
+	u32 flags = 0;
+
+	if (cmd_id != WMI_VDEV_START_REQUEST_CMDID &&
+	    cmd_id != WMI_VDEV_RESTART_REQUEST_CMDID)
+		return -EINVAL;
+	if (WARN_ON(arg->ssid && arg->ssid_len == 0))
+		return -EINVAL;
+	if (WARN_ON(arg->hidden_ssid && !arg->ssid))
+		return -EINVAL;
+	if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
+		return -EINVAL;
+
+	if (cmd_id == WMI_VDEV_START_REQUEST_CMDID)
+		cmdname = "start";
+	else if (cmd_id == WMI_VDEV_RESTART_REQUEST_CMDID)
+		cmdname = "restart";
+	else
+		return -EINVAL; /* should not happen, we already check cmd_id */
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	if (arg->hidden_ssid)
+		flags |= WMI_VDEV_START_HIDDEN_SSID;
+	if (arg->pmf_enabled)
+		flags |= WMI_VDEV_START_PMF_ENABLED;
+
+	cmd = (struct wmi_vdev_start_request_cmd *)skb->data;
+	cmd->vdev_id         = __cpu_to_le32(arg->vdev_id);
+	cmd->disable_hw_ack  = __cpu_to_le32(arg->disable_hw_ack);
+	cmd->beacon_interval = __cpu_to_le32(arg->bcn_intval);
+	cmd->dtim_period     = __cpu_to_le32(arg->dtim_period);
+	cmd->flags           = __cpu_to_le32(flags);
+	cmd->bcn_tx_rate     = __cpu_to_le32(arg->bcn_tx_rate);
+	cmd->bcn_tx_power    = __cpu_to_le32(arg->bcn_tx_power);
+
+	if (arg->ssid) {
+		cmd->ssid.ssid_len = __cpu_to_le32(arg->ssid_len);
+		memcpy(cmd->ssid.ssid, arg->ssid, arg->ssid_len);
+	}
+
+	cmd->chan.mhz = __cpu_to_le32(arg->channel.freq);
+
+	cmd->chan.band_center_freq1 =
+		__cpu_to_le32(arg->channel.band_center_freq1);
+
+	cmd->chan.mode = arg->channel.mode;
+	cmd->chan.min_power = arg->channel.min_power;
+	cmd->chan.max_power = arg->channel.max_power;
+	cmd->chan.reg_power = arg->channel.max_reg_power;
+	cmd->chan.reg_classid = arg->channel.reg_class_id;
+	cmd->chan.antenna_max = arg->channel.max_antenna_gain;
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi vdev %s id 0x%x freq %d, mode %d, ch_flags: 0x%0X,"
+		   "max_power: %d\n", cmdname, arg->vdev_id, arg->channel.freq,
+		   arg->channel.mode, flags, arg->channel.max_power);
+
+	return ath10k_wmi_cmd_send(ar, skb, cmd_id);
+}
+
+int ath10k_wmi_vdev_start(struct ath10k *ar,
+			  const struct wmi_vdev_start_request_arg *arg)
+{
+	return ath10k_wmi_vdev_start_restart(ar, arg,
+					     WMI_VDEV_START_REQUEST_CMDID);
+}
+
+int ath10k_wmi_vdev_restart(struct ath10k *ar,
+		     const struct wmi_vdev_start_request_arg *arg)
+{
+	return ath10k_wmi_vdev_start_restart(ar, arg,
+					     WMI_VDEV_RESTART_REQUEST_CMDID);
+}
+
+int ath10k_wmi_vdev_stop(struct ath10k *ar, u32 vdev_id)
+{
+	struct wmi_vdev_stop_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_stop_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi vdev stop id 0x%x\n", vdev_id);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_STOP_CMDID);
+}
+
+int ath10k_wmi_vdev_up(struct ath10k *ar, u32 vdev_id, u32 aid, const u8 *bssid)
+{
+	struct wmi_vdev_up_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_up_cmd *)skb->data;
+	cmd->vdev_id       = __cpu_to_le32(vdev_id);
+	cmd->vdev_assoc_id = __cpu_to_le32(aid);
+	memcpy(&cmd->vdev_bssid.addr, bssid, 6);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi mgmt vdev up id 0x%x assoc id %d bssid %pM\n",
+		   vdev_id, aid, bssid);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_UP_CMDID);
+}
+
+int ath10k_wmi_vdev_down(struct ath10k *ar, u32 vdev_id)
+{
+	struct wmi_vdev_down_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_down_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi mgmt vdev down id 0x%x\n", vdev_id);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_DOWN_CMDID);
+}
+
+int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
+			      enum wmi_vdev_param param_id, u32 param_value)
+{
+	struct wmi_vdev_set_param_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_set_param_cmd *)skb->data;
+	cmd->vdev_id     = __cpu_to_le32(vdev_id);
+	cmd->param_id    = __cpu_to_le32(param_id);
+	cmd->param_value = __cpu_to_le32(param_value);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi vdev id 0x%x set param %d value %d\n",
+		   vdev_id, param_id, param_value);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_SET_PARAM_CMDID);
+}
+
+int ath10k_wmi_vdev_install_key(struct ath10k *ar,
+				const struct wmi_vdev_install_key_arg *arg)
+{
+	struct wmi_vdev_install_key_cmd *cmd;
+	struct sk_buff *skb;
+
+	if (arg->key_cipher == WMI_CIPHER_NONE && arg->key_data != NULL)
+		return -EINVAL;
+	if (arg->key_cipher != WMI_CIPHER_NONE && arg->key_data == NULL)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd) + arg->key_len);
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
+	cmd->vdev_id       = __cpu_to_le32(arg->vdev_id);
+	cmd->key_idx       = __cpu_to_le32(arg->key_idx);
+	cmd->key_flags     = __cpu_to_le32(arg->key_flags);
+	cmd->key_cipher    = __cpu_to_le32(arg->key_cipher);
+	cmd->key_len       = __cpu_to_le32(arg->key_len);
+	cmd->key_txmic_len = __cpu_to_le32(arg->key_txmic_len);
+	cmd->key_rxmic_len = __cpu_to_le32(arg->key_rxmic_len);
+
+	if (arg->macaddr)
+		memcpy(cmd->peer_macaddr.addr, arg->macaddr, ETH_ALEN);
+	if (arg->key_data)
+		memcpy(cmd->key_data, arg->key_data, arg->key_len);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_INSTALL_KEY_CMDID);
+}
+
+int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
+			   const u8 peer_addr[ETH_ALEN])
+{
+	struct wmi_peer_create_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_create_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+	memcpy(cmd->peer_macaddr.addr, peer_addr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi peer create vdev_id %d peer_addr %pM\n",
+		   vdev_id, peer_addr);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_CREATE_CMDID);
+}
+
+int ath10k_wmi_peer_delete(struct ath10k *ar, u32 vdev_id,
+			   const u8 peer_addr[ETH_ALEN])
+{
+	struct wmi_peer_delete_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_delete_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+	memcpy(cmd->peer_macaddr.addr, peer_addr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi peer delete vdev_id %d peer_addr %pM\n",
+		   vdev_id, peer_addr);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_DELETE_CMDID);
+}
+
+int ath10k_wmi_peer_flush(struct ath10k *ar, u32 vdev_id,
+			  const u8 peer_addr[ETH_ALEN], u32 tid_bitmap)
+{
+	struct wmi_peer_flush_tids_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_flush_tids_cmd *)skb->data;
+	cmd->vdev_id         = __cpu_to_le32(vdev_id);
+	cmd->peer_tid_bitmap = __cpu_to_le32(tid_bitmap);
+	memcpy(cmd->peer_macaddr.addr, peer_addr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi peer flush vdev_id %d peer_addr %pM tids %08x\n",
+		   vdev_id, peer_addr, tid_bitmap);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_FLUSH_TIDS_CMDID);
+}
+
+int ath10k_wmi_peer_set_param(struct ath10k *ar, u32 vdev_id,
+			      const u8 *peer_addr, enum wmi_peer_param param_id,
+			      u32 param_value)
+{
+	struct wmi_peer_set_param_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_set_param_cmd *)skb->data;
+	cmd->vdev_id     = __cpu_to_le32(vdev_id);
+	cmd->param_id    = __cpu_to_le32(param_id);
+	cmd->param_value = __cpu_to_le32(param_value);
+	memcpy(&cmd->peer_macaddr.addr, peer_addr, 6);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi vdev %d peer 0x%pM set param %d value %d\n",
+		   vdev_id, peer_addr, param_id, param_value);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_SET_PARAM_CMDID);
+}
+
+int ath10k_wmi_set_psmode(struct ath10k *ar, u32 vdev_id,
+			  enum wmi_sta_ps_mode psmode)
+{
+	struct wmi_sta_powersave_mode_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_sta_powersave_mode_cmd *)skb->data;
+	cmd->vdev_id     = __cpu_to_le32(vdev_id);
+	cmd->sta_ps_mode = __cpu_to_le32(psmode);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi set powersave id 0x%x mode %d\n",
+		   vdev_id, psmode);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_STA_POWERSAVE_MODE_CMDID);
+}
+
+int ath10k_wmi_set_sta_ps_param(struct ath10k *ar, u32 vdev_id,
+				enum wmi_sta_powersave_param param_id,
+				u32 value)
+{
+	struct wmi_sta_powersave_param_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_sta_powersave_param_cmd *)skb->data;
+	cmd->vdev_id     = __cpu_to_le32(vdev_id);
+	cmd->param_id    = __cpu_to_le32(param_id);
+	cmd->param_value = __cpu_to_le32(value);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi sta ps param vdev_id 0x%x param %d value %d\n",
+		   vdev_id, param_id, value);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_STA_POWERSAVE_PARAM_CMDID);
+}
+
+int ath10k_wmi_set_ap_ps_param(struct ath10k *ar, u32 vdev_id, const u8 *mac,
+			       enum wmi_ap_ps_peer_param param_id, u32 value)
+{
+	struct wmi_ap_ps_peer_cmd *cmd;
+	struct sk_buff *skb;
+
+	if (!mac)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_ap_ps_peer_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+	cmd->param_id = __cpu_to_le32(param_id);
+	cmd->param_value = __cpu_to_le32(value);
+	memcpy(&cmd->peer_macaddr, mac, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi ap ps param vdev_id 0x%X param %d value %d mac_addr %pM\n",
+		   vdev_id, param_id, value, mac);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_AP_PS_PEER_PARAM_CMDID);
+}
+
+int ath10k_wmi_scan_chan_list(struct ath10k *ar,
+			      const struct wmi_scan_chan_list_arg *arg)
+{
+	struct wmi_scan_chan_list_cmd *cmd;
+	struct sk_buff *skb;
+	struct wmi_channel_arg *ch;
+	struct wmi_channel *ci;
+	int len;
+	int i;
+
+	len = sizeof(*cmd) + arg->n_channels * sizeof(struct wmi_channel);
+
+	skb = ath10k_wmi_alloc_skb(len);
+	if (!skb)
+		return -EINVAL;
+
+	cmd = (struct wmi_scan_chan_list_cmd *)skb->data;
+	cmd->num_scan_chans = __cpu_to_le32(arg->n_channels);
+
+	for (i = 0; i < arg->n_channels; i++) {
+		u32 flags = 0;
+
+		ch = &arg->channels[i];
+		ci = &cmd->chan_info[i];
+
+		if (ch->passive)
+			flags |= WMI_CHAN_FLAG_PASSIVE;
+		if (ch->allow_ibss)
+			flags |= WMI_CHAN_FLAG_ADHOC_ALLOWED;
+		if (ch->allow_ht)
+			flags |= WMI_CHAN_FLAG_ALLOW_HT;
+		if (ch->allow_vht)
+			flags |= WMI_CHAN_FLAG_ALLOW_VHT;
+		if (ch->ht40plus)
+			flags |= WMI_CHAN_FLAG_HT40_PLUS;
+
+		ci->mhz               = __cpu_to_le32(ch->freq);
+		ci->band_center_freq1 = __cpu_to_le32(ch->freq);
+		ci->band_center_freq2 = 0;
+		ci->min_power         = ch->min_power;
+		ci->max_power         = ch->max_power;
+		ci->reg_power         = ch->max_reg_power;
+		ci->antenna_max       = ch->max_antenna_gain;
+		ci->antenna_max       = 0;
+
+		/* mode & flags share storage */
+		ci->mode              = ch->mode;
+		ci->flags            |= __cpu_to_le32(flags);
+	}
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_SCAN_CHAN_LIST_CMDID);
+}
+
+int ath10k_wmi_peer_assoc(struct ath10k *ar,
+			  const struct wmi_peer_assoc_complete_arg *arg)
+{
+	struct wmi_peer_assoc_complete_cmd *cmd;
+	struct sk_buff *skb;
+
+	if (arg->peer_mpdu_density > 16)
+		return -EINVAL;
+	if (arg->peer_legacy_rates.num_rates > MAX_SUPPORTED_RATES)
+		return -EINVAL;
+	if (arg->peer_ht_rates.num_rates > MAX_SUPPORTED_RATES)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_assoc_complete_cmd *)skb->data;
+	cmd->vdev_id            = __cpu_to_le32(arg->vdev_id);
+	cmd->peer_new_assoc     = __cpu_to_le32(arg->peer_reassoc ? 0 : 1);
+	cmd->peer_associd       = __cpu_to_le32(arg->peer_aid);
+	cmd->peer_flags         = __cpu_to_le32(arg->peer_flags);
+	cmd->peer_caps          = __cpu_to_le32(arg->peer_caps);
+	cmd->peer_listen_intval = __cpu_to_le32(arg->peer_listen_intval);
+	cmd->peer_ht_caps       = __cpu_to_le32(arg->peer_ht_caps);
+	cmd->peer_max_mpdu      = __cpu_to_le32(arg->peer_max_mpdu);
+	cmd->peer_mpdu_density  = __cpu_to_le32(arg->peer_mpdu_density);
+	cmd->peer_rate_caps     = __cpu_to_le32(arg->peer_rate_caps);
+	cmd->peer_nss           = __cpu_to_le32(arg->peer_num_spatial_streams);
+	cmd->peer_vht_caps      = __cpu_to_le32(arg->peer_vht_caps);
+	cmd->peer_phymode       = __cpu_to_le32(arg->peer_phymode);
+
+	memcpy(cmd->peer_macaddr.addr, arg->addr, ETH_ALEN);
+
+	cmd->peer_legacy_rates.num_rates =
+		__cpu_to_le32(arg->peer_legacy_rates.num_rates);
+	memcpy(cmd->peer_legacy_rates.rates, arg->peer_legacy_rates.rates,
+	       arg->peer_legacy_rates.num_rates);
+
+	cmd->peer_ht_rates.num_rates =
+		__cpu_to_le32(arg->peer_ht_rates.num_rates);
+	memcpy(cmd->peer_ht_rates.rates, arg->peer_ht_rates.rates,
+	       arg->peer_ht_rates.num_rates);
+
+	cmd->peer_vht_rates.rx_max_rate =
+		__cpu_to_le32(arg->peer_vht_rates.rx_max_rate);
+	cmd->peer_vht_rates.rx_mcs_set =
+		__cpu_to_le32(arg->peer_vht_rates.rx_mcs_set);
+	cmd->peer_vht_rates.tx_max_rate =
+		__cpu_to_le32(arg->peer_vht_rates.tx_max_rate);
+	cmd->peer_vht_rates.tx_mcs_set =
+		__cpu_to_le32(arg->peer_vht_rates.tx_mcs_set);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_ASSOC_CMDID);
+}
+
+int ath10k_wmi_beacon_send(struct ath10k *ar, const struct wmi_bcn_tx_arg *arg)
+{
+	struct wmi_bcn_tx_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd) + arg->bcn_len);
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_bcn_tx_cmd *)skb->data;
+	cmd->hdr.vdev_id  = __cpu_to_le32(arg->vdev_id);
+	cmd->hdr.tx_rate  = __cpu_to_le32(arg->tx_rate);
+	cmd->hdr.tx_power = __cpu_to_le32(arg->tx_power);
+	cmd->hdr.bcn_len  = __cpu_to_le32(arg->bcn_len);
+	memcpy(cmd->bcn, arg->bcn, arg->bcn_len);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_BCN_TX_CMDID);
+}
+
+static void ath10k_wmi_pdev_set_wmm_param(struct wmi_wmm_params *params,
+					  const struct wmi_wmm_params_arg *arg)
+{
+	params->cwmin  = __cpu_to_le32(arg->cwmin);
+	params->cwmax  = __cpu_to_le32(arg->cwmax);
+	params->aifs   = __cpu_to_le32(arg->aifs);
+	params->txop   = __cpu_to_le32(arg->txop);
+	params->acm    = __cpu_to_le32(arg->acm);
+	params->no_ack = __cpu_to_le32(arg->no_ack);
+}
+
+int ath10k_wmi_pdev_set_wmm_params(struct ath10k *ar,
+			const struct wmi_pdev_set_wmm_params_arg *arg)
+{
+	struct wmi_pdev_set_wmm_params *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_set_wmm_params *)skb->data;
+	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_be, &arg->ac_be);
+	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_bk, &arg->ac_bk);
+	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_vi, &arg->ac_vi);
+	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_vo, &arg->ac_vo);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi pdev set wmm params\n");
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_WMM_PARAMS_CMDID);
+}
+
+int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id)
+{
+	struct wmi_request_stats_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_request_stats_cmd *)skb->data;
+	cmd->stats_id = __cpu_to_le32(stats_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi request stats %d\n", (int)stats_id);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_REQUEST_STATS_CMDID);
+}
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
new file mode 100644
index 0000000..9555f5a
--- /dev/null
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -0,0 +1,3052 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WMI_H_
+#define _WMI_H_
+
+#include <linux/types.h>
+#include <net/mac80211.h>
+
+/*
+ * This file specifies the WMI interface for the Unified Software
+ * Architecture.
+ *
+ * It includes definitions of all the commands and events. Commands are
+ * messages from the host to the target. Events and Replies are messages
+ * from the target to the host.
+ *
+ * Ownership of correctness in regards to WMI commands belongs to the host
+ * driver and the target is not required to validate parameters for value,
+ * proper range, or any other checking.
+ *
+ * Guidelines for extending this interface are below.
+ *
+ * 1. Add new WMI commands ONLY within the specified range - 0x9000 - 0x9fff
+ *
+ * 2. Use ONLY u32 type for defining member variables within WMI
+ *    command/event structures. Do not use u8, u16, bool or
+ *    enum types within these structures.
+ *
+ * 3. DO NOT define bit fields within structures. Implement bit fields
+ *    using masks if necessary. Do not use the programming language's bit
+ *    field definition.
+ *
+ * 4. Define macros for encode/decode of u8, u16 fields within
+ *    the u32 variables. Use these macros for set/get of these fields.
+ *    Try to use this to optimize the structure without bloating it with
+ *    u32 variables for every lower sized field.
+ *
+ * 5. Do not use PACK/UNPACK attributes for the structures as each member
+ *    variable is already 4-byte aligned by virtue of being a u32
+ *    type.
+ *
+ * 6. Comment each parameter part of the WMI command/event structure by
+ *    using the 2 stars at the begining of C comment instead of one star to
+ *    enable HTML document generation using Doxygen.
+ *
+ */
+
+/* Control Path */
+struct wmi_cmd_hdr {
+	__le32 cmd_id;
+} __packed;
+
+#define WMI_CMD_HDR_CMD_ID_MASK   0x00FFFFFF
+#define WMI_CMD_HDR_CMD_ID_LSB    0
+#define WMI_CMD_HDR_PLT_PRIV_MASK 0xFF000000
+#define WMI_CMD_HDR_PLT_PRIV_LSB  24
+
+#define HTC_PROTOCOL_VERSION    0x0002
+#define WMI_PROTOCOL_VERSION    0x0002
+
+enum wmi_service_id {
+	WMI_SERVICE_BEACON_OFFLOAD = 0,   /* beacon offload */
+	WMI_SERVICE_SCAN_OFFLOAD,	  /* scan offload */
+	WMI_SERVICE_ROAM_OFFLOAD,	  /* roam offload */
+	WMI_SERVICE_BCN_MISS_OFFLOAD,     /* beacon miss offload */
+	WMI_SERVICE_STA_PWRSAVE,	  /* fake sleep + basic power save */
+	WMI_SERVICE_STA_ADVANCED_PWRSAVE, /* uapsd, pspoll, force sleep */
+	WMI_SERVICE_AP_UAPSD,		  /* uapsd on AP */
+	WMI_SERVICE_AP_DFS,		  /* DFS on AP */
+	WMI_SERVICE_11AC,		  /* supports 11ac */
+	WMI_SERVICE_BLOCKACK,	/* Supports triggering ADDBA/DELBA from host*/
+	WMI_SERVICE_PHYERR,		  /* PHY error */
+	WMI_SERVICE_BCN_FILTER,		  /* Beacon filter support */
+	WMI_SERVICE_RTT,		  /* RTT (round trip time) support */
+	WMI_SERVICE_RATECTRL,		  /* Rate-control */
+	WMI_SERVICE_WOW,		  /* WOW Support */
+	WMI_SERVICE_RATECTRL_CACHE,       /* Rate-control caching */
+	WMI_SERVICE_IRAM_TIDS,            /* TIDs in IRAM */
+	WMI_SERVICE_ARPNS_OFFLOAD,	  /* ARP NS Offload support */
+	WMI_SERVICE_NLO,		  /* Network list offload service */
+	WMI_SERVICE_GTK_OFFLOAD,	  /* GTK offload */
+	WMI_SERVICE_SCAN_SCH,		  /* Scan Scheduler Service */
+	WMI_SERVICE_CSA_OFFLOAD,	  /* CSA offload service */
+	WMI_SERVICE_CHATTER,		  /* Chatter service */
+	WMI_SERVICE_COEX_FREQAVOID,	  /* FW report freq range to avoid */
+	WMI_SERVICE_PACKET_POWER_SAVE,	  /* packet power save service */
+	WMI_SERVICE_FORCE_FW_HANG,        /* To test fw recovery mechanism */
+	WMI_SERVICE_GPIO,                 /* GPIO service */
+	WMI_SERVICE_STA_DTIM_PS_MODULATED_DTIM, /* Modulated DTIM support */
+	WMI_STA_UAPSD_BASIC_AUTO_TRIG,    /* UAPSD AC Trigger Generation  */
+	WMI_STA_UAPSD_VAR_AUTO_TRIG,      /* -do- */
+	WMI_SERVICE_STA_KEEP_ALIVE,       /* STA keep alive mechanism support */
+	WMI_SERVICE_TX_ENCAP,             /* Packet type for TX encapsulation */
+
+	WMI_SERVICE_LAST,
+	WMI_MAX_SERVICE = 64		  /* max service */
+};
+
+static inline char *wmi_service_name(int service_id)
+{
+	switch (service_id) {
+	case WMI_SERVICE_BEACON_OFFLOAD:
+		return "BEACON_OFFLOAD";
+	case WMI_SERVICE_SCAN_OFFLOAD:
+		return "SCAN_OFFLOAD";
+	case WMI_SERVICE_ROAM_OFFLOAD:
+		return "ROAM_OFFLOAD";
+	case WMI_SERVICE_BCN_MISS_OFFLOAD:
+		return "BCN_MISS_OFFLOAD";
+	case WMI_SERVICE_STA_PWRSAVE:
+		return "STA_PWRSAVE";
+	case WMI_SERVICE_STA_ADVANCED_PWRSAVE:
+		return "STA_ADVANCED_PWRSAVE";
+	case WMI_SERVICE_AP_UAPSD:
+		return "AP_UAPSD";
+	case WMI_SERVICE_AP_DFS:
+		return "AP_DFS";
+	case WMI_SERVICE_11AC:
+		return "11AC";
+	case WMI_SERVICE_BLOCKACK:
+		return "BLOCKACK";
+	case WMI_SERVICE_PHYERR:
+		return "PHYERR";
+	case WMI_SERVICE_BCN_FILTER:
+		return "BCN_FILTER";
+	case WMI_SERVICE_RTT:
+		return "RTT";
+	case WMI_SERVICE_RATECTRL:
+		return "RATECTRL";
+	case WMI_SERVICE_WOW:
+		return "WOW";
+	case WMI_SERVICE_RATECTRL_CACHE:
+		return "RATECTRL CACHE";
+	case WMI_SERVICE_IRAM_TIDS:
+		return "IRAM TIDS";
+	case WMI_SERVICE_ARPNS_OFFLOAD:
+		return "ARPNS_OFFLOAD";
+	case WMI_SERVICE_NLO:
+		return "NLO";
+	case WMI_SERVICE_GTK_OFFLOAD:
+		return "GTK_OFFLOAD";
+	case WMI_SERVICE_SCAN_SCH:
+		return "SCAN_SCH";
+	case WMI_SERVICE_CSA_OFFLOAD:
+		return "CSA_OFFLOAD";
+	case WMI_SERVICE_CHATTER:
+		return "CHATTER";
+	case WMI_SERVICE_COEX_FREQAVOID:
+		return "COEX_FREQAVOID";
+	case WMI_SERVICE_PACKET_POWER_SAVE:
+		return "PACKET_POWER_SAVE";
+	case WMI_SERVICE_FORCE_FW_HANG:
+		return "FORCE FW HANG";
+	case WMI_SERVICE_GPIO:
+		return "GPIO";
+	case WMI_SERVICE_STA_DTIM_PS_MODULATED_DTIM:
+		return "MODULATED DTIM";
+	case WMI_STA_UAPSD_BASIC_AUTO_TRIG:
+		return "BASIC UAPSD";
+	case WMI_STA_UAPSD_VAR_AUTO_TRIG:
+		return "VAR UAPSD";
+	case WMI_SERVICE_STA_KEEP_ALIVE:
+		return "STA KEEP ALIVE";
+	case WMI_SERVICE_TX_ENCAP:
+		return "TX ENCAP";
+	default:
+		return "UNKNOWN SERVICE\n";
+	}
+}
+
+
+#define WMI_SERVICE_BM_SIZE \
+	((WMI_MAX_SERVICE + sizeof(u32) - 1)/sizeof(u32))
+
+/* 2 word representation of MAC addr */
+struct wmi_mac_addr {
+	union {
+		u8 addr[6];
+		struct {
+			u32 word0;
+			u32 word1;
+		} __packed;
+	} __packed;
+} __packed;
+
+/* macro to convert MAC address from WMI word format to char array */
+#define WMI_MAC_ADDR_TO_CHAR_ARRAY(pwmi_mac_addr, c_macaddr) do { \
+	(c_macaddr)[0] =  ((pwmi_mac_addr)->word0) & 0xff; \
+	(c_macaddr)[1] = (((pwmi_mac_addr)->word0) >> 8) & 0xff; \
+	(c_macaddr)[2] = (((pwmi_mac_addr)->word0) >> 16) & 0xff; \
+	(c_macaddr)[3] = (((pwmi_mac_addr)->word0) >> 24) & 0xff; \
+	(c_macaddr)[4] =  ((pwmi_mac_addr)->word1) & 0xff; \
+	(c_macaddr)[5] = (((pwmi_mac_addr)->word1) >> 8) & 0xff; \
+	} while (0)
+
+/*
+ * wmi command groups.
+ */
+enum wmi_cmd_group {
+	/* 0 to 2 are reserved */
+	WMI_GRP_START = 0x3,
+	WMI_GRP_SCAN = WMI_GRP_START,
+	WMI_GRP_PDEV,
+	WMI_GRP_VDEV,
+	WMI_GRP_PEER,
+	WMI_GRP_MGMT,
+	WMI_GRP_BA_NEG,
+	WMI_GRP_STA_PS,
+	WMI_GRP_DFS,
+	WMI_GRP_ROAM,
+	WMI_GRP_OFL_SCAN,
+	WMI_GRP_P2P,
+	WMI_GRP_AP_PS,
+	WMI_GRP_RATE_CTRL,
+	WMI_GRP_PROFILE,
+	WMI_GRP_SUSPEND,
+	WMI_GRP_BCN_FILTER,
+	WMI_GRP_WOW,
+	WMI_GRP_RTT,
+	WMI_GRP_SPECTRAL,
+	WMI_GRP_STATS,
+	WMI_GRP_ARP_NS_OFL,
+	WMI_GRP_NLO_OFL,
+	WMI_GRP_GTK_OFL,
+	WMI_GRP_CSA_OFL,
+	WMI_GRP_CHATTER,
+	WMI_GRP_TID_ADDBA,
+	WMI_GRP_MISC,
+	WMI_GRP_GPIO,
+};
+
+#define WMI_CMD_GRP(grp_id) (((grp_id) << 12) | 0x1)
+#define WMI_EVT_GRP_START_ID(grp_id) (((grp_id) << 12) | 0x1)
+
+/* Command IDs and commande events. */
+enum wmi_cmd_id {
+	WMI_INIT_CMDID = 0x1,
+
+	/* Scan specific commands */
+	WMI_START_SCAN_CMDID = WMI_CMD_GRP(WMI_GRP_SCAN),
+	WMI_STOP_SCAN_CMDID,
+	WMI_SCAN_CHAN_LIST_CMDID,
+	WMI_SCAN_SCH_PRIO_TBL_CMDID,
+
+	/* PDEV (physical device) specific commands */
+	WMI_PDEV_SET_REGDOMAIN_CMDID = WMI_CMD_GRP(WMI_GRP_PDEV),
+	WMI_PDEV_SET_CHANNEL_CMDID,
+	WMI_PDEV_SET_PARAM_CMDID,
+	WMI_PDEV_PKTLOG_ENABLE_CMDID,
+	WMI_PDEV_PKTLOG_DISABLE_CMDID,
+	WMI_PDEV_SET_WMM_PARAMS_CMDID,
+	WMI_PDEV_SET_HT_CAP_IE_CMDID,
+	WMI_PDEV_SET_VHT_CAP_IE_CMDID,
+	WMI_PDEV_SET_DSCP_TID_MAP_CMDID,
+	WMI_PDEV_SET_QUIET_MODE_CMDID,
+	WMI_PDEV_GREEN_AP_PS_ENABLE_CMDID,
+	WMI_PDEV_GET_TPC_CONFIG_CMDID,
+	WMI_PDEV_SET_BASE_MACADDR_CMDID,
+
+	/* VDEV (virtual device) specific commands */
+	WMI_VDEV_CREATE_CMDID = WMI_CMD_GRP(WMI_GRP_VDEV),
+	WMI_VDEV_DELETE_CMDID,
+	WMI_VDEV_START_REQUEST_CMDID,
+	WMI_VDEV_RESTART_REQUEST_CMDID,
+	WMI_VDEV_UP_CMDID,
+	WMI_VDEV_STOP_CMDID,
+	WMI_VDEV_DOWN_CMDID,
+	WMI_VDEV_SET_PARAM_CMDID,
+	WMI_VDEV_INSTALL_KEY_CMDID,
+
+	/* peer specific commands */
+	WMI_PEER_CREATE_CMDID = WMI_CMD_GRP(WMI_GRP_PEER),
+	WMI_PEER_DELETE_CMDID,
+	WMI_PEER_FLUSH_TIDS_CMDID,
+	WMI_PEER_SET_PARAM_CMDID,
+	WMI_PEER_ASSOC_CMDID,
+	WMI_PEER_ADD_WDS_ENTRY_CMDID,
+	WMI_PEER_REMOVE_WDS_ENTRY_CMDID,
+	WMI_PEER_MCAST_GROUP_CMDID,
+
+	/* beacon/management specific commands */
+	WMI_BCN_TX_CMDID = WMI_CMD_GRP(WMI_GRP_MGMT),
+	WMI_PDEV_SEND_BCN_CMDID,
+	WMI_BCN_TMPL_CMDID,
+	WMI_BCN_FILTER_RX_CMDID,
+	WMI_PRB_REQ_FILTER_RX_CMDID,
+	WMI_MGMT_TX_CMDID,
+	WMI_PRB_TMPL_CMDID,
+
+	/* commands to directly control BA negotiation directly from host. */
+	WMI_ADDBA_CLEAR_RESP_CMDID = WMI_CMD_GRP(WMI_GRP_BA_NEG),
+	WMI_ADDBA_SEND_CMDID,
+	WMI_ADDBA_STATUS_CMDID,
+	WMI_DELBA_SEND_CMDID,
+	WMI_ADDBA_SET_RESP_CMDID,
+	WMI_SEND_SINGLEAMSDU_CMDID,
+
+	/* Station power save specific config */
+	WMI_STA_POWERSAVE_MODE_CMDID = WMI_CMD_GRP(WMI_GRP_STA_PS),
+	WMI_STA_POWERSAVE_PARAM_CMDID,
+	WMI_STA_MIMO_PS_MODE_CMDID,
+
+	/** DFS-specific commands */
+	WMI_PDEV_DFS_ENABLE_CMDID = WMI_CMD_GRP(WMI_GRP_DFS),
+	WMI_PDEV_DFS_DISABLE_CMDID,
+
+	/* Roaming specific  commands */
+	WMI_ROAM_SCAN_MODE = WMI_CMD_GRP(WMI_GRP_ROAM),
+	WMI_ROAM_SCAN_RSSI_THRESHOLD,
+	WMI_ROAM_SCAN_PERIOD,
+	WMI_ROAM_SCAN_RSSI_CHANGE_THRESHOLD,
+	WMI_ROAM_AP_PROFILE,
+
+	/* offload scan specific commands */
+	WMI_OFL_SCAN_ADD_AP_PROFILE = WMI_CMD_GRP(WMI_GRP_OFL_SCAN),
+	WMI_OFL_SCAN_REMOVE_AP_PROFILE,
+	WMI_OFL_SCAN_PERIOD,
+
+	/* P2P specific commands */
+	WMI_P2P_DEV_SET_DEVICE_INFO = WMI_CMD_GRP(WMI_GRP_P2P),
+	WMI_P2P_DEV_SET_DISCOVERABILITY,
+	WMI_P2P_GO_SET_BEACON_IE,
+	WMI_P2P_GO_SET_PROBE_RESP_IE,
+	WMI_P2P_SET_VENDOR_IE_DATA_CMDID,
+
+	/* AP power save specific config */
+	WMI_AP_PS_PEER_PARAM_CMDID = WMI_CMD_GRP(WMI_GRP_AP_PS),
+	WMI_AP_PS_PEER_UAPSD_COEX_CMDID,
+
+	/* Rate-control specific commands */
+	WMI_PEER_RATE_RETRY_SCHED_CMDID =
+	WMI_CMD_GRP(WMI_GRP_RATE_CTRL),
+
+	/* WLAN Profiling commands. */
+	WMI_WLAN_PROFILE_TRIGGER_CMDID = WMI_CMD_GRP(WMI_GRP_PROFILE),
+	WMI_WLAN_PROFILE_SET_HIST_INTVL_CMDID,
+	WMI_WLAN_PROFILE_GET_PROFILE_DATA_CMDID,
+	WMI_WLAN_PROFILE_ENABLE_PROFILE_ID_CMDID,
+	WMI_WLAN_PROFILE_LIST_PROFILE_ID_CMDID,
+
+	/* Suspend resume command Ids */
+	WMI_PDEV_SUSPEND_CMDID = WMI_CMD_GRP(WMI_GRP_SUSPEND),
+	WMI_PDEV_RESUME_CMDID,
+
+	/* Beacon filter commands */
+	WMI_ADD_BCN_FILTER_CMDID = WMI_CMD_GRP(WMI_GRP_BCN_FILTER),
+	WMI_RMV_BCN_FILTER_CMDID,
+
+	/* WOW Specific WMI commands*/
+	WMI_WOW_ADD_WAKE_PATTERN_CMDID = WMI_CMD_GRP(WMI_GRP_WOW),
+	WMI_WOW_DEL_WAKE_PATTERN_CMDID,
+	WMI_WOW_ENABLE_DISABLE_WAKE_EVENT_CMDID,
+	WMI_WOW_ENABLE_CMDID,
+	WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID,
+
+	/* RTT measurement related cmd */
+	WMI_RTT_MEASREQ_CMDID = WMI_CMD_GRP(WMI_GRP_RTT),
+	WMI_RTT_TSF_CMDID,
+
+	/* spectral scan commands */
+	WMI_VDEV_SPECTRAL_SCAN_CONFIGURE_CMDID = WMI_CMD_GRP(WMI_GRP_SPECTRAL),
+	WMI_VDEV_SPECTRAL_SCAN_ENABLE_CMDID,
+
+	/* F/W stats */
+	WMI_REQUEST_STATS_CMDID = WMI_CMD_GRP(WMI_GRP_STATS),
+
+	/* ARP OFFLOAD REQUEST*/
+	WMI_SET_ARP_NS_OFFLOAD_CMDID = WMI_CMD_GRP(WMI_GRP_ARP_NS_OFL),
+
+	/* NS offload confid*/
+	WMI_NETWORK_LIST_OFFLOAD_CONFIG_CMDID = WMI_CMD_GRP(WMI_GRP_NLO_OFL),
+
+	/* GTK offload Specific WMI commands*/
+	WMI_GTK_OFFLOAD_CMDID = WMI_CMD_GRP(WMI_GRP_GTK_OFL),
+
+	/* CSA offload Specific WMI commands*/
+	WMI_CSA_OFFLOAD_ENABLE_CMDID = WMI_CMD_GRP(WMI_GRP_CSA_OFL),
+	WMI_CSA_OFFLOAD_CHANSWITCH_CMDID,
+
+	/* Chatter commands*/
+	WMI_CHATTER_SET_MODE_CMDID = WMI_CMD_GRP(WMI_GRP_CHATTER),
+
+	/* addba specific commands */
+	WMI_PEER_TID_ADDBA_CMDID = WMI_CMD_GRP(WMI_GRP_TID_ADDBA),
+	WMI_PEER_TID_DELBA_CMDID,
+
+	/* set station mimo powersave method */
+	WMI_STA_DTIM_PS_METHOD_CMDID,
+	/* Configure the Station UAPSD AC Auto Trigger Parameters */
+	WMI_STA_UAPSD_AUTO_TRIG_CMDID,
+
+	/* STA Keep alive parameter configuration,
+	   Requires WMI_SERVICE_STA_KEEP_ALIVE */
+	WMI_STA_KEEPALIVE_CMD,
+
+	/* misc command group */
+	WMI_ECHO_CMDID = WMI_CMD_GRP(WMI_GRP_MISC),
+	WMI_PDEV_UTF_CMDID,
+	WMI_DBGLOG_CFG_CMDID,
+	WMI_PDEV_QVIT_CMDID,
+	WMI_PDEV_FTM_INTG_CMDID,
+	WMI_VDEV_SET_KEEPALIVE_CMDID,
+	WMI_VDEV_GET_KEEPALIVE_CMDID,
+
+	/* GPIO Configuration */
+	WMI_GPIO_CONFIG_CMDID = WMI_CMD_GRP(WMI_GRP_GPIO),
+	WMI_GPIO_OUTPUT_CMDID,
+};
+
+enum wmi_event_id {
+	WMI_SERVICE_READY_EVENTID = 0x1,
+	WMI_READY_EVENTID,
+
+	/* Scan specific events */
+	WMI_SCAN_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_SCAN),
+
+	/* PDEV specific events */
+	WMI_PDEV_TPC_CONFIG_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_PDEV),
+	WMI_CHAN_INFO_EVENTID,
+	WMI_PHYERR_EVENTID,
+
+	/* VDEV specific events */
+	WMI_VDEV_START_RESP_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_VDEV),
+	WMI_VDEV_STOPPED_EVENTID,
+	WMI_VDEV_INSTALL_KEY_COMPLETE_EVENTID,
+
+	/* peer specific events */
+	WMI_PEER_STA_KICKOUT_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_PEER),
+
+	/* beacon/mgmt specific events */
+	WMI_MGMT_RX_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_MGMT),
+	WMI_HOST_SWBA_EVENTID,
+	WMI_TBTTOFFSET_UPDATE_EVENTID,
+
+	/* ADDBA Related WMI Events*/
+	WMI_TX_DELBA_COMPLETE_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_BA_NEG),
+	WMI_TX_ADDBA_COMPLETE_EVENTID,
+
+	/* Roam event to trigger roaming on host */
+	WMI_ROAM_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_ROAM),
+	WMI_PROFILE_MATCH,
+
+	/* WoW */
+	WMI_WOW_WAKEUP_HOST_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_WOW),
+
+	/* RTT */
+	WMI_RTT_MEASUREMENT_REPORT_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_RTT),
+	WMI_TSF_MEASUREMENT_REPORT_EVENTID,
+	WMI_RTT_ERROR_REPORT_EVENTID,
+
+	/* GTK offload */
+	WMI_GTK_OFFLOAD_STATUS_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_GTK_OFL),
+	WMI_GTK_REKEY_FAIL_EVENTID,
+
+	/* CSA IE received event */
+	WMI_CSA_HANDLING_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_CSA_OFL),
+
+	/* Misc events */
+	WMI_ECHO_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_MISC),
+	WMI_PDEV_UTF_EVENTID,
+	WMI_DEBUG_MESG_EVENTID,
+	WMI_UPDATE_STATS_EVENTID,
+	WMI_DEBUG_PRINT_EVENTID,
+	WMI_DCS_INTERFERENCE_EVENTID,
+	WMI_PDEV_QVIT_EVENTID,
+	WMI_WLAN_PROFILE_DATA_EVENTID,
+	WMI_PDEV_FTM_INTG_EVENTID,
+	WMI_WLAN_FREQ_AVOID_EVENTID,
+	WMI_VDEV_GET_KEEPALIVE_EVENTID,
+
+	/* GPIO Event */
+	WMI_GPIO_INPUT_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_GPIO),
+};
+
+enum wmi_phy_mode {
+	MODE_11A        = 0,   /* 11a Mode */
+	MODE_11G        = 1,   /* 11b/g Mode */
+	MODE_11B        = 2,   /* 11b Mode */
+	MODE_11GONLY    = 3,   /* 11g only Mode */
+	MODE_11NA_HT20   = 4,  /* 11a HT20 mode */
+	MODE_11NG_HT20   = 5,  /* 11g HT20 mode */
+	MODE_11NA_HT40   = 6,  /* 11a HT40 mode */
+	MODE_11NG_HT40   = 7,  /* 11g HT40 mode */
+	MODE_11AC_VHT20 = 8,
+	MODE_11AC_VHT40 = 9,
+	MODE_11AC_VHT80 = 10,
+	/*    MODE_11AC_VHT160 = 11, */
+	MODE_11AC_VHT20_2G = 11,
+	MODE_11AC_VHT40_2G = 12,
+	MODE_11AC_VHT80_2G = 13,
+	MODE_UNKNOWN    = 14,
+	MODE_MAX        = 14
+};
+
+#define WMI_CHAN_LIST_TAG	0x1
+#define WMI_SSID_LIST_TAG	0x2
+#define WMI_BSSID_LIST_TAG	0x3
+#define WMI_IE_TAG		0x4
+
+struct wmi_channel {
+	__le32 mhz;
+	__le32 band_center_freq1;
+	__le32 band_center_freq2; /* valid for 11ac, 80plus80 */
+	union {
+		__le32 flags; /* WMI_CHAN_FLAG_ */
+		struct {
+			u8 mode; /* only 6 LSBs */
+		} __packed;
+	} __packed;
+	union {
+		__le32 reginfo0;
+		struct {
+			u8 min_power;
+			u8 max_power;
+			u8 reg_power;
+			u8 reg_classid;
+		} __packed;
+	} __packed;
+	union {
+		__le32 reginfo1;
+		struct {
+			u8 antenna_max;
+		} __packed;
+	} __packed;
+} __packed;
+
+struct wmi_channel_arg {
+	u32 freq;
+	u32 band_center_freq1;
+	bool passive;
+	bool allow_ibss;
+	bool allow_ht;
+	bool allow_vht;
+	bool ht40plus;
+	/* note: power unit is 1/4th of dBm */
+	u32 min_power;
+	u32 max_power;
+	u32 max_reg_power;
+	u32 max_antenna_gain;
+	u32 reg_class_id;
+	enum wmi_phy_mode mode;
+};
+
+enum wmi_channel_change_cause {
+	WMI_CHANNEL_CHANGE_CAUSE_NONE = 0,
+	WMI_CHANNEL_CHANGE_CAUSE_CSA,
+};
+
+#define WMI_CHAN_FLAG_HT40_PLUS      (1 << 6)
+#define WMI_CHAN_FLAG_PASSIVE        (1 << 7)
+#define WMI_CHAN_FLAG_ADHOC_ALLOWED  (1 << 8)
+#define WMI_CHAN_FLAG_AP_DISABLED    (1 << 9)
+#define WMI_CHAN_FLAG_DFS            (1 << 10)
+#define WMI_CHAN_FLAG_ALLOW_HT       (1 << 11)
+#define WMI_CHAN_FLAG_ALLOW_VHT      (1 << 12)
+
+/* Indicate reason for channel switch */
+#define WMI_CHANNEL_CHANGE_CAUSE_CSA (1 << 13)
+
+#define WMI_MAX_SPATIAL_STREAM   3
+
+/* HT Capabilities*/
+#define WMI_HT_CAP_ENABLED                0x0001   /* HT Enabled/ disabled */
+#define WMI_HT_CAP_HT20_SGI       0x0002   /* Short Guard Interval with HT20 */
+#define WMI_HT_CAP_DYNAMIC_SMPS           0x0004   /* Dynamic MIMO powersave */
+#define WMI_HT_CAP_TX_STBC                0x0008   /* B3 TX STBC */
+#define WMI_HT_CAP_TX_STBC_MASK_SHIFT     3
+#define WMI_HT_CAP_RX_STBC                0x0030   /* B4-B5 RX STBC */
+#define WMI_HT_CAP_RX_STBC_MASK_SHIFT     4
+#define WMI_HT_CAP_LDPC                   0x0040   /* LDPC supported */
+#define WMI_HT_CAP_L_SIG_TXOP_PROT        0x0080   /* L-SIG TXOP Protection */
+#define WMI_HT_CAP_MPDU_DENSITY           0x0700   /* MPDU Density */
+#define WMI_HT_CAP_MPDU_DENSITY_MASK_SHIFT 8
+#define WMI_HT_CAP_HT40_SGI               0x0800
+
+#define WMI_HT_CAP_DEFAULT_ALL (WMI_HT_CAP_ENABLED       | \
+				WMI_HT_CAP_HT20_SGI      | \
+				WMI_HT_CAP_HT40_SGI      | \
+				WMI_HT_CAP_TX_STBC       | \
+				WMI_HT_CAP_RX_STBC       | \
+				WMI_HT_CAP_LDPC)
+
+
+/*
+ * WMI_VHT_CAP_* these maps to ieee 802.11ac vht capability information
+ * field. The fields not defined here are not supported, or reserved.
+ * Do not change these masks and if you have to add new one follow the
+ * bitmask as specified by 802.11ac draft.
+ */
+
+#define WMI_VHT_CAP_MAX_MPDU_LEN_MASK            0x00000003
+#define WMI_VHT_CAP_RX_LDPC                      0x00000010
+#define WMI_VHT_CAP_SGI_80MHZ                    0x00000020
+#define WMI_VHT_CAP_TX_STBC                      0x00000080
+#define WMI_VHT_CAP_RX_STBC_MASK                 0x00000300
+#define WMI_VHT_CAP_RX_STBC_MASK_SHIFT           8
+#define WMI_VHT_CAP_MAX_AMPDU_LEN_EXP            0x03800000
+#define WMI_VHT_CAP_MAX_AMPDU_LEN_EXP_SHIFT      23
+#define WMI_VHT_CAP_RX_FIXED_ANT                 0x10000000
+#define WMI_VHT_CAP_TX_FIXED_ANT                 0x20000000
+
+/* The following also refer for max HT AMSDU */
+#define WMI_VHT_CAP_MAX_MPDU_LEN_3839            0x00000000
+#define WMI_VHT_CAP_MAX_MPDU_LEN_7935            0x00000001
+#define WMI_VHT_CAP_MAX_MPDU_LEN_11454           0x00000002
+
+#define WMI_VHT_CAP_DEFAULT_ALL (WMI_VHT_CAP_MAX_MPDU_LEN_11454  | \
+				 WMI_VHT_CAP_RX_LDPC             | \
+				 WMI_VHT_CAP_SGI_80MHZ           | \
+				 WMI_VHT_CAP_TX_STBC             | \
+				 WMI_VHT_CAP_RX_STBC_MASK        | \
+				 WMI_VHT_CAP_MAX_AMPDU_LEN_EXP   | \
+				 WMI_VHT_CAP_RX_FIXED_ANT        | \
+				 WMI_VHT_CAP_TX_FIXED_ANT)
+
+/*
+ * Interested readers refer to Rx/Tx MCS Map definition as defined in
+ * 802.11ac
+ */
+#define WMI_VHT_MAX_MCS_4_SS_MASK(r, ss)      ((3 & (r)) << (((ss) - 1) << 1))
+#define WMI_VHT_MAX_SUPP_RATE_MASK           0x1fff0000
+#define WMI_VHT_MAX_SUPP_RATE_MASK_SHIFT     16
+
+enum {
+	REGDMN_MODE_11A              = 0x00001, /* 11a channels */
+	REGDMN_MODE_TURBO            = 0x00002, /* 11a turbo-only channels */
+	REGDMN_MODE_11B              = 0x00004, /* 11b channels */
+	REGDMN_MODE_PUREG            = 0x00008, /* 11g channels (OFDM only) */
+	REGDMN_MODE_11G              = 0x00008, /* XXX historical */
+	REGDMN_MODE_108G             = 0x00020, /* 11a+Turbo channels */
+	REGDMN_MODE_108A             = 0x00040, /* 11g+Turbo channels */
+	REGDMN_MODE_XR               = 0x00100, /* XR channels */
+	REGDMN_MODE_11A_HALF_RATE    = 0x00200, /* 11A half rate channels */
+	REGDMN_MODE_11A_QUARTER_RATE = 0x00400, /* 11A quarter rate channels */
+	REGDMN_MODE_11NG_HT20        = 0x00800, /* 11N-G HT20 channels */
+	REGDMN_MODE_11NA_HT20        = 0x01000, /* 11N-A HT20 channels */
+	REGDMN_MODE_11NG_HT40PLUS    = 0x02000, /* 11N-G HT40 + channels */
+	REGDMN_MODE_11NG_HT40MINUS   = 0x04000, /* 11N-G HT40 - channels */
+	REGDMN_MODE_11NA_HT40PLUS    = 0x08000, /* 11N-A HT40 + channels */
+	REGDMN_MODE_11NA_HT40MINUS   = 0x10000, /* 11N-A HT40 - channels */
+	REGDMN_MODE_11AC_VHT20       = 0x20000, /* 5Ghz, VHT20 */
+	REGDMN_MODE_11AC_VHT40PLUS   = 0x40000, /* 5Ghz, VHT40 + channels */
+	REGDMN_MODE_11AC_VHT40MINUS  = 0x80000, /* 5Ghz  VHT40 - channels */
+	REGDMN_MODE_11AC_VHT80       = 0x100000, /* 5Ghz, VHT80 channels */
+	REGDMN_MODE_ALL              = 0xffffffff
+};
+
+#define REGDMN_CAP1_CHAN_HALF_RATE        0x00000001
+#define REGDMN_CAP1_CHAN_QUARTER_RATE     0x00000002
+#define REGDMN_CAP1_CHAN_HAL49GHZ         0x00000004
+
+/* regulatory capabilities */
+#define REGDMN_EEPROM_EEREGCAP_EN_FCC_MIDBAND   0x0040
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_U1_EVEN    0x0080
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_U2         0x0100
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_MIDBAND    0x0200
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_U1_ODD     0x0400
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_NEW_11A    0x0800
+
+struct hal_reg_capabilities {
+	/* regdomain value specified in EEPROM */
+	__le32 eeprom_rd;
+	/*regdomain */
+	__le32 eeprom_rd_ext;
+	/* CAP1 capabilities bit map. */
+	__le32 regcap1;
+	/* REGDMN EEPROM CAP. */
+	__le32 regcap2;
+	/* REGDMN MODE */
+	__le32 wireless_modes;
+	__le32 low_2ghz_chan;
+	__le32 high_2ghz_chan;
+	__le32 low_5ghz_chan;
+	__le32 high_5ghz_chan;
+} __packed;
+
+enum wlan_mode_capability {
+	WHAL_WLAN_11A_CAPABILITY   = 0x1,
+	WHAL_WLAN_11G_CAPABILITY   = 0x2,
+	WHAL_WLAN_11AG_CAPABILITY  = 0x3,
+};
+
+/* structure used by FW for requesting host memory */
+struct wlan_host_mem_req {
+	/* ID of the request */
+	__le32 req_id;
+	/* size of the  of each unit */
+	__le32 unit_size;
+	/* flags to  indicate that
+	 * the number units is dependent
+	 * on number of resources(num vdevs num peers .. etc)
+	 */
+	__le32 num_unit_info;
+	/*
+	 * actual number of units to allocate . if flags in the num_unit_info
+	 * indicate that number of units is tied to number of a particular
+	 * resource to allocate then  num_units filed is set to 0 and host
+	 * will derive the number units from number of the resources it is
+	 * requesting.
+	 */
+	__le32 num_units;
+} __packed;
+
+#define WMI_SERVICE_IS_ENABLED(wmi_svc_bmap, svc_id) \
+	((((wmi_svc_bmap)[(svc_id)/(sizeof(u32))]) & \
+	(1 << ((svc_id)%(sizeof(u32))))) != 0)
+
+/*
+ * The following struct holds optional payload for
+ * wmi_service_ready_event,e.g., 11ac pass some of the
+ * device capability to the host.
+ */
+struct wmi_service_ready_event {
+	__le32 sw_version;
+	__le32 sw_version_1;
+	__le32 abi_version;
+	/* WMI_PHY_CAPABILITY */
+	__le32 phy_capability;
+	/* Maximum number of frag table entries that SW will populate less 1 */
+	__le32 max_frag_entry;
+	__le32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
+	__le32 num_rf_chains;
+	/*
+	 * The following field is only valid for service type
+	 * WMI_SERVICE_11AC
+	 */
+	__le32 ht_cap_info; /* WMI HT Capability */
+	__le32 vht_cap_info; /* VHT capability info field of 802.11ac */
+	__le32 vht_supp_mcs; /* VHT Supported MCS Set field Rx/Tx same */
+	__le32 hw_min_tx_power;
+	__le32 hw_max_tx_power;
+	struct hal_reg_capabilities hal_reg_capabilities;
+	__le32 sys_cap_info;
+	__le32 min_pkt_size_enable; /* Enterprise mode short pkt enable */
+	/*
+	 * Max beacon and Probe Response IE offload size
+	 * (includes optional P2P IEs)
+	 */
+	__le32 max_bcn_ie_size;
+	/*
+	 * request to host to allocate a chuck of memory and pss it down to FW
+	 * via WM_INIT. FW uses this as FW extesnsion memory for saving its
+	 * data structures. Only valid for low latency interfaces like PCIE
+	 * where FW can access this memory directly (or) by DMA.
+	 */
+	__le32 num_mem_reqs;
+	struct wlan_host_mem_req mem_reqs[1];
+} __packed;
+
+/*
+ * status consists of  upper 16 bits fo int status and lower 16 bits of
+ * module ID that retuned status
+ */
+#define WLAN_INIT_STATUS_SUCCESS   0x0
+#define WLAN_GET_INIT_STATUS_REASON(status)    ((status) & 0xffff)
+#define WLAN_GET_INIT_STATUS_MODULE_ID(status) (((status) >> 16) & 0xffff)
+
+#define WMI_SERVICE_READY_TIMEOUT_HZ (5*HZ)
+#define WMI_UNIFIED_READY_TIMEOUT_HZ (5*HZ)
+
+struct wmi_ready_event {
+	__le32 sw_version;
+	__le32 abi_version;
+	struct wmi_mac_addr mac_addr;
+	__le32 status;
+} __packed;
+
+struct wmi_resource_config {
+	/* number of virtual devices (VAPs) to support */
+	__le32 num_vdevs;
+
+	/* number of peer nodes to support */
+	__le32 num_peers;
+
+	/*
+	 * In offload mode target supports features like WOW, chatter and
+	 * other protocol offloads. In order to support them some
+	 * functionalities like reorder buffering, PN checking need to be
+	 * done in target. This determines maximum number of peers suported
+	 * by target in offload mode
+	 */
+	__le32 num_offload_peers;
+
+	/* For target-based RX reordering */
+	__le32 num_offload_reorder_bufs;
+
+	/* number of keys per peer */
+	__le32 num_peer_keys;
+
+	/* total number of TX/RX data TIDs */
+	__le32 num_tids;
+
+	/*
+	 * max skid for resolving hash collisions
+	 *
+	 *   The address search table is sparse, so that if two MAC addresses
+	 *   result in the same hash value, the second of these conflicting
+	 *   entries can slide to the next index in the address search table,
+	 *   and use it, if it is unoccupied.  This ast_skid_limit parameter
+	 *   specifies the upper bound on how many subsequent indices to search
+	 *   over to find an unoccupied space.
+	 */
+	__le32 ast_skid_limit;
+
+	/*
+	 * the nominal chain mask for transmit
+	 *
+	 *   The chain mask may be modified dynamically, e.g. to operate AP
+	 *   tx with a reduced number of chains if no clients are associated.
+	 *   This configuration parameter specifies the nominal chain-mask that
+	 *   should be used when not operating with a reduced set of tx chains.
+	 */
+	__le32 tx_chain_mask;
+
+	/*
+	 * the nominal chain mask for receive
+	 *
+	 *   The chain mask may be modified dynamically, e.g. for a client
+	 *   to use a reduced number of chains for receive if the traffic to
+	 *   the client is low enough that it doesn't require downlink MIMO
+	 *   or antenna diversity.
+	 *   This configuration parameter specifies the nominal chain-mask that
+	 *   should be used when not operating with a reduced set of rx chains.
+	 */
+	__le32 rx_chain_mask;
+
+	/*
+	 * what rx reorder timeout (ms) to use for the AC
+	 *
+	 *   Each WMM access class (voice, video, best-effort, background) will
+	 *   have its own timeout value to dictate how long to wait for missing
+	 *   rx MPDUs to arrive before flushing subsequent MPDUs that have
+	 *   already been received.
+	 *   This parameter specifies the timeout in milliseconds for each
+	 *   class.
+	 */
+	__le32 rx_timeout_pri_vi;
+	__le32 rx_timeout_pri_vo;
+	__le32 rx_timeout_pri_be;
+	__le32 rx_timeout_pri_bk;
+
+	/*
+	 * what mode the rx should decap packets to
+	 *
+	 *   MAC can decap to RAW (no decap), native wifi or Ethernet types
+	 *   THis setting also determines the default TX behavior, however TX
+	 *   behavior can be modified on a per VAP basis during VAP init
+	 */
+	__le32 rx_decap_mode;
+
+	/* what is the maximum scan requests than can be queued */
+	__le32 scan_max_pending_reqs;
+
+	/* maximum VDEV that could use BMISS offload */
+	__le32 bmiss_offload_max_vdev;
+
+	/* maximum VDEV that could use offload roaming */
+	__le32 roam_offload_max_vdev;
+
+	/* maximum AP profiles that would push to offload roaming */
+	__le32 roam_offload_max_ap_profiles;
+
+	/*
+	 * how many groups to use for mcast->ucast conversion
+	 *
+	 *   The target's WAL maintains a table to hold information regarding
+	 *   which peers belong to a given multicast group, so that if
+	 *   multicast->unicast conversion is enabled, the target can convert
+	 *   multicast tx frames to a series of unicast tx frames, to each
+	 *   peer within the multicast group.
+	     This num_mcast_groups configuration parameter tells the target how
+	 *   many multicast groups to provide storage for within its multicast
+	 *   group membership table.
+	 */
+	__le32 num_mcast_groups;
+
+	/*
+	 * size to alloc for the mcast membership table
+	 *
+	 *   This num_mcast_table_elems configuration parameter tells the
+	 *   target how many peer elements it needs to provide storage for in
+	 *   its multicast group membership table.
+	 *   These multicast group membership table elements are shared by the
+	 *   multicast groups stored within the table.
+	 */
+	__le32 num_mcast_table_elems;
+
+	/*
+	 * whether/how to do multicast->unicast conversion
+	 *
+	 *   This configuration parameter specifies whether the target should
+	 *   perform multicast --> unicast conversion on transmit, and if so,
+	 *   what to do if it finds no entries in its multicast group
+	 *   membership table for the multicast IP address in the tx frame.
+	 *   Configuration value:
+	 *   0 -> Do not perform multicast to unicast conversion.
+	 *   1 -> Convert multicast frames to unicast, if the IP multicast
+	 *        address from the tx frame is found in the multicast group
+	 *        membership table.  If the IP multicast address is not found,
+	 *        drop the frame.
+	 *   2 -> Convert multicast frames to unicast, if the IP multicast
+	 *        address from the tx frame is found in the multicast group
+	 *        membership table.  If the IP multicast address is not found,
+	 *        transmit the frame as multicast.
+	 */
+	__le32 mcast2ucast_mode;
+
+	/*
+	 * how much memory to allocate for a tx PPDU dbg log
+	 *
+	 *   This parameter controls how much memory the target will allocate
+	 *   to store a log of tx PPDU meta-information (how large the PPDU
+	 *   was, when it was sent, whether it was successful, etc.)
+	 */
+	__le32 tx_dbg_log_size;
+
+	/* how many AST entries to be allocated for WDS */
+	__le32 num_wds_entries;
+
+	/*
+	 * MAC DMA burst size, e.g., For target PCI limit can be
+	 * 0 -default, 1 256B
+	 */
+	__le32 dma_burst_size;
+
+	/*
+	 * Fixed delimiters to be inserted after every MPDU to
+	 * account for interface latency to avoid underrun.
+	 */
+	__le32 mac_aggr_delim;
+
+	/*
+	 *   determine whether target is responsible for detecting duplicate
+	 *   non-aggregate MPDU and timing out stale fragments.
+	 *
+	 *   A-MPDU reordering is always performed on the target.
+	 *
+	 *   0: target responsible for frag timeout and dup checking
+	 *   1: host responsible for frag timeout and dup checking
+	 */
+	__le32 rx_skip_defrag_timeout_dup_detection_check;
+
+	/*
+	 * Configuration for VoW :
+	 * No of Video Nodes to be supported
+	 * and Max no of descriptors for each Video link (node).
+	 */
+	__le32 vow_config;
+
+	/* maximum VDEV that could use GTK offload */
+	__le32 gtk_offload_max_vdev;
+
+	/* Number of msdu descriptors target should use */
+	__le32 num_msdu_desc;
+
+	/*
+	 * Max. number of Tx fragments per MSDU
+	 *  This parameter controls the max number of Tx fragments per MSDU.
+	 *  This is sent by the target as part of the WMI_SERVICE_READY event
+	 *  and is overriden by the OS shim as required.
+	 */
+	__le32 max_frag_entries;
+} __packed;
+
+/* strucutre describing host memory chunk. */
+struct host_memory_chunk {
+	/* id of the request that is passed up in service ready */
+	__le32 req_id;
+	/* the physical address the memory chunk */
+	__le32 ptr;
+	/* size of the chunk */
+	__le32 size;
+} __packed;
+
+struct wmi_init_cmd {
+	struct wmi_resource_config resource_config;
+	__le32 num_host_mem_chunks;
+
+	/*
+	 * variable number of host memory chunks.
+	 * This should be the last element in the structure
+	 */
+	struct host_memory_chunk host_mem_chunks[1];
+} __packed;
+
+/* TLV for channel list */
+struct wmi_chan_list {
+	__le32 tag; /* WMI_CHAN_LIST_TAG */
+	__le32 num_chan;
+	__le32 channel_list[0];
+} __packed;
+
+struct wmi_bssid_list {
+	__le32 tag; /* WMI_BSSID_LIST_TAG */
+	__le32 num_bssid;
+	struct wmi_mac_addr bssid_list[0];
+} __packed;
+
+struct wmi_ie_data {
+	__le32 tag; /* WMI_IE_TAG */
+	__le32 ie_len;
+	u8 ie_data[0];
+} __packed;
+
+struct wmi_ssid {
+	__le32 ssid_len;
+	u8 ssid[32];
+} __packed;
+
+struct wmi_ssid_list {
+	__le32 tag; /* WMI_SSID_LIST_TAG */
+	__le32 num_ssids;
+	struct wmi_ssid ssids[0];
+} __packed;
+
+/* prefix used by scan requestor ids on the host */
+#define WMI_HOST_SCAN_REQUESTOR_ID_PREFIX 0xA000
+
+/* prefix used by scan request ids generated on the host */
+/* host cycles through the lower 12 bits to generate ids */
+#define WMI_HOST_SCAN_REQ_ID_PREFIX 0xA000
+
+#define WLAN_SCAN_PARAMS_MAX_SSID    16
+#define WLAN_SCAN_PARAMS_MAX_BSSID   4
+#define WLAN_SCAN_PARAMS_MAX_IE_LEN  256
+
+/* Scan priority numbers must be sequential, starting with 0 */
+enum wmi_scan_priority {
+	WMI_SCAN_PRIORITY_VERY_LOW = 0,
+	WMI_SCAN_PRIORITY_LOW,
+	WMI_SCAN_PRIORITY_MEDIUM,
+	WMI_SCAN_PRIORITY_HIGH,
+	WMI_SCAN_PRIORITY_VERY_HIGH,
+	WMI_SCAN_PRIORITY_COUNT   /* number of priorities supported */
+};
+
+struct wmi_start_scan_cmd {
+	/* Scan ID */
+	__le32 scan_id;
+	/* Scan requestor ID */
+	__le32 scan_req_id;
+	/* VDEV id(interface) that is requesting scan */
+	__le32 vdev_id;
+	/* Scan Priority, input to scan scheduler */
+	__le32 scan_priority;
+	/* Scan events subscription */
+	__le32 notify_scan_events;
+	/* dwell time in msec on active channels */
+	__le32 dwell_time_active;
+	/* dwell time in msec on passive channels */
+	__le32 dwell_time_passive;
+	/*
+	 * min time in msec on the BSS channel,only valid if atleast one
+	 * VDEV is active
+	 */
+	__le32 min_rest_time;
+	/*
+	 * max rest time in msec on the BSS channel,only valid if at least
+	 * one VDEV is active
+	 */
+	/*
+	 * the scanner will rest on the bss channel at least min_rest_time
+	 * after min_rest_time the scanner will start checking for tx/rx
+	 * activity on all VDEVs. if there is no activity the scanner will
+	 * switch to off channel. if there is activity the scanner will let
+	 * the radio on the bss channel until max_rest_time expires.at
+	 * max_rest_time scanner will switch to off channel irrespective of
+	 * activity. activity is determined by the idle_time parameter.
+	 */
+	__le32 max_rest_time;
+	/*
+	 * time before sending next set of probe requests.
+	 * The scanner keeps repeating probe requests transmission with
+	 * period specified by repeat_probe_time.
+	 * The number of probe requests specified depends on the ssid_list
+	 * and bssid_list
+	 */
+	__le32 repeat_probe_time;
+	/* time in msec between 2 consequetive probe requests with in a set. */
+	__le32 probe_spacing_time;
+	/*
+	 * data inactivity time in msec on bss channel that will be used by
+	 * scanner for measuring the inactivity.
+	 */
+	__le32 idle_time;
+	/* maximum time in msec allowed for scan  */
+	__le32 max_scan_time;
+	/*
+	 * delay in msec before sending first probe request after switching
+	 * to a channel
+	 */
+	__le32 probe_delay;
+	/* Scan control flags */
+	__le32 scan_ctrl_flags;
+
+	/* Burst duration time in msecs */
+	__le32 burst_duration;
+	/*
+	 * TLV (tag length value )  paramerters follow the scan_cmd structure.
+	 * TLV can contain channel list, bssid list, ssid list and
+	 * ie. the TLV tags are defined above;
+	 */
+} __packed;
+
+struct wmi_ssid_arg {
+	int len;
+	const u8 *ssid;
+};
+
+struct wmi_bssid_arg {
+	const u8 *bssid;
+};
+
+struct wmi_start_scan_arg {
+	u32 scan_id;
+	u32 scan_req_id;
+	u32 vdev_id;
+	u32 scan_priority;
+	u32 notify_scan_events;
+	u32 dwell_time_active;
+	u32 dwell_time_passive;
+	u32 min_rest_time;
+	u32 max_rest_time;
+	u32 repeat_probe_time;
+	u32 probe_spacing_time;
+	u32 idle_time;
+	u32 max_scan_time;
+	u32 probe_delay;
+	u32 scan_ctrl_flags;
+
+	u32 ie_len;
+	u32 n_channels;
+	u32 n_ssids;
+	u32 n_bssids;
+
+	u8 ie[WLAN_SCAN_PARAMS_MAX_IE_LEN];
+	u32 channels[64];
+	struct wmi_ssid_arg ssids[WLAN_SCAN_PARAMS_MAX_SSID];
+	struct wmi_bssid_arg bssids[WLAN_SCAN_PARAMS_MAX_BSSID];
+};
+
+/* scan control flags */
+
+/* passively scan all channels including active channels */
+#define WMI_SCAN_FLAG_PASSIVE        0x1
+/* add wild card ssid probe request even though ssid_list is specified. */
+#define WMI_SCAN_ADD_BCAST_PROBE_REQ 0x2
+/* add cck rates to rates/xrate ie for the generated probe request */
+#define WMI_SCAN_ADD_CCK_RATES 0x4
+/* add ofdm rates to rates/xrate ie for the generated probe request */
+#define WMI_SCAN_ADD_OFDM_RATES 0x8
+/* To enable indication of Chan load and Noise floor to host */
+#define WMI_SCAN_CHAN_STAT_EVENT 0x10
+/* Filter Probe request frames  */
+#define WMI_SCAN_FILTER_PROBE_REQ 0x20
+/* When set, DFS channels will not be scanned */
+#define WMI_SCAN_BYPASS_DFS_CHN 0x40
+/* Different FW scan engine may choose to bail out on errors.
+ * Allow the driver to have influence over that. */
+#define WMI_SCAN_CONTINUE_ON_ERROR 0x80
+
+/* WMI_SCAN_CLASS_MASK must be the same value as IEEE80211_SCAN_CLASS_MASK */
+#define WMI_SCAN_CLASS_MASK 0xFF000000
+
+
+enum wmi_stop_scan_type {
+	WMI_SCAN_STOP_ONE	= 0x00000000, /* stop by scan_id */
+	WMI_SCAN_STOP_VDEV_ALL	= 0x01000000, /* stop by vdev_id */
+	WMI_SCAN_STOP_ALL	= 0x04000000, /* stop all scans */
+};
+
+struct wmi_stop_scan_cmd {
+	__le32 scan_req_id;
+	__le32 scan_id;
+	__le32 req_type;
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_stop_scan_arg {
+	u32 req_id;
+	enum wmi_stop_scan_type req_type;
+	union {
+		u32 scan_id;
+		u32 vdev_id;
+	} u;
+};
+
+struct wmi_scan_chan_list_cmd {
+	__le32 num_scan_chans;
+	struct wmi_channel chan_info[0];
+} __packed;
+
+struct wmi_scan_chan_list_arg {
+	u32 n_channels;
+	struct wmi_channel_arg *channels;
+};
+
+enum wmi_bss_filter {
+	WMI_BSS_FILTER_NONE = 0,        /* no beacons forwarded */
+	WMI_BSS_FILTER_ALL,             /* all beacons forwarded */
+	WMI_BSS_FILTER_PROFILE,         /* only beacons matching profile */
+	WMI_BSS_FILTER_ALL_BUT_PROFILE, /* all but beacons matching profile */
+	WMI_BSS_FILTER_CURRENT_BSS,     /* only beacons matching current BSS */
+	WMI_BSS_FILTER_ALL_BUT_BSS,     /* all but beacons matching BSS */
+	WMI_BSS_FILTER_PROBED_SSID,     /* beacons matching probed ssid */
+	WMI_BSS_FILTER_LAST_BSS,        /* marker only */
+};
+
+enum wmi_scan_event_type {
+	WMI_SCAN_EVENT_STARTED         = 0x1,
+	WMI_SCAN_EVENT_COMPLETED       = 0x2,
+	WMI_SCAN_EVENT_BSS_CHANNEL     = 0x4,
+	WMI_SCAN_EVENT_FOREIGN_CHANNEL = 0x8,
+	WMI_SCAN_EVENT_DEQUEUED        = 0x10,
+	WMI_SCAN_EVENT_PREEMPTED       = 0x20, /* possibly by high-prio scan */
+	WMI_SCAN_EVENT_START_FAILED    = 0x40,
+	WMI_SCAN_EVENT_RESTARTED       = 0x80,
+	WMI_SCAN_EVENT_MAX             = 0x8000
+};
+
+enum wmi_scan_completion_reason {
+	WMI_SCAN_REASON_COMPLETED,
+	WMI_SCAN_REASON_CANCELLED,
+	WMI_SCAN_REASON_PREEMPTED,
+	WMI_SCAN_REASON_TIMEDOUT,
+	WMI_SCAN_REASON_MAX,
+};
+
+struct wmi_scan_event {
+	__le32 event_type; /* %WMI_SCAN_EVENT_ */
+	__le32 reason; /* %WMI_SCAN_REASON_ */
+	__le32 channel_freq; /* only valid for WMI_SCAN_EVENT_FOREIGN_CHANNEL */
+	__le32 scan_req_id;
+	__le32 scan_id;
+	__le32 vdev_id;
+} __packed;
+
+/*
+ * This defines how much headroom is kept in the
+ * receive frame between the descriptor and the
+ * payload, in order for the WMI PHY error and
+ * management handler to insert header contents.
+ *
+ * This is in bytes.
+ */
+#define WMI_MGMT_RX_HDR_HEADROOM    52
+
+/*
+ * This event will be used for sending scan results
+ * as well as rx mgmt frames to the host. The rx buffer
+ * will be sent as part of this WMI event. It would be a
+ * good idea to pass all the fields in the RX status
+ * descriptor up to the host.
+ */
+struct wmi_mgmt_rx_hdr {
+	__le32 channel;
+	__le32 snr;
+	__le32 rate;
+	__le32 phy_mode;
+	__le32 buf_len;
+	__le32 status; /* %WMI_RX_STATUS_ */
+} __packed;
+
+struct wmi_mgmt_rx_event {
+	struct wmi_mgmt_rx_hdr hdr;
+	u8 buf[0];
+} __packed;
+
+#define WMI_RX_STATUS_OK			0x00
+#define WMI_RX_STATUS_ERR_CRC			0x01
+#define WMI_RX_STATUS_ERR_DECRYPT		0x08
+#define WMI_RX_STATUS_ERR_MIC			0x10
+#define WMI_RX_STATUS_ERR_KEY_CACHE_MISS	0x20
+
+struct wmi_single_phyerr_rx_hdr {
+	/* TSF timestamp */
+	__le32 tsf_timestamp;
+
+	/*
+	 * Current freq1, freq2
+	 *
+	 * [7:0]:    freq1[lo]
+	 * [15:8] :   freq1[hi]
+	 * [23:16]:   freq2[lo]
+	 * [31:24]:   freq2[hi]
+	 */
+	__le16 freq1;
+	__le16 freq2;
+
+	/*
+	 * Combined RSSI over all chains and channel width for this PHY error
+	 *
+	 * [7:0]: RSSI combined
+	 * [15:8]: Channel width (MHz)
+	 * [23:16]: PHY error code
+	 * [24:16]: reserved (future use)
+	 */
+	u8 rssi_combined;
+	u8 chan_width_mhz;
+	u8 phy_err_code;
+	u8 rsvd0;
+
+	/*
+	 * RSSI on chain 0 through 3
+	 *
+	 * This is formatted the same as the PPDU_START RX descriptor
+	 * field:
+	 *
+	 * [7:0]:   pri20
+	 * [15:8]:  sec20
+	 * [23:16]: sec40
+	 * [31:24]: sec80
+	 */
+
+	__le32 rssi_chain0;
+	__le32 rssi_chain1;
+	__le32 rssi_chain2;
+	__le32 rssi_chain3;
+
+	/*
+	 * Last calibrated NF value for chain 0 through 3
+	 *
+	 * nf_list_1:
+	 *
+	 * + [15:0] - chain 0
+	 * + [31:16] - chain 1
+	 *
+	 * nf_list_2:
+	 *
+	 * + [15:0] - chain 2
+	 * + [31:16] - chain 3
+	 */
+	__le32 nf_list_1;
+	__le32 nf_list_2;
+
+
+	/* Length of the frame */
+	__le32 buf_len;
+} __packed;
+
+struct wmi_single_phyerr_rx_event {
+	/* Phy error event header */
+	struct wmi_single_phyerr_rx_hdr hdr;
+	/* frame buffer */
+	u8 bufp[0];
+} __packed;
+
+struct wmi_comb_phyerr_rx_hdr {
+	/* Phy error phy error count */
+	__le32 num_phyerr_events;
+	__le32 tsf_l32;
+	__le32 tsf_u32;
+} __packed;
+
+struct wmi_comb_phyerr_rx_event {
+	/* Phy error phy error count */
+	struct wmi_comb_phyerr_rx_hdr hdr;
+	/*
+	 * frame buffer - contains multiple payloads in the order:
+	 *                    header - payload, header - payload...
+	 *  (The header is of type: wmi_single_phyerr_rx_hdr)
+	 */
+	u8 bufp[0];
+} __packed;
+
+struct wmi_mgmt_tx_hdr {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+	__le32 tx_rate;
+	__le32 tx_power;
+	__le32 buf_len;
+} __packed;
+
+struct wmi_mgmt_tx_cmd {
+	struct wmi_mgmt_tx_hdr hdr;
+	u8 buf[0];
+} __packed;
+
+struct wmi_echo_event {
+	__le32 value;
+} __packed;
+
+struct wmi_echo_cmd {
+	__le32 value;
+} __packed;
+
+
+struct wmi_pdev_set_regdomain_cmd {
+	__le32 reg_domain;
+	__le32 reg_domain_2G;
+	__le32 reg_domain_5G;
+	__le32 conformance_test_limit_2G;
+	__le32 conformance_test_limit_5G;
+} __packed;
+
+/* Command to set/unset chip in quiet mode */
+struct wmi_pdev_set_quiet_cmd {
+	/* period in TUs */
+	__le32 period;
+
+	/* duration in TUs */
+	__le32 duration;
+
+	/* offset in TUs */
+	__le32 next_start;
+
+	/* enable/disable */
+	__le32 enabled;
+} __packed;
+
+
+/*
+ * 802.11g protection mode.
+ */
+enum ath10k_protmode {
+	ATH10K_PROT_NONE     = 0,    /* no protection */
+	ATH10K_PROT_CTSONLY  = 1,    /* CTS to self */
+	ATH10K_PROT_RTSCTS   = 2,    /* RTS-CTS */
+};
+
+enum wmi_beacon_gen_mode {
+	WMI_BEACON_STAGGERED_MODE = 0,
+	WMI_BEACON_BURST_MODE = 1
+};
+
+enum wmi_csa_event_ies_present_flag {
+	WMI_CSA_IE_PRESENT = 0x00000001,
+	WMI_XCSA_IE_PRESENT = 0x00000002,
+	WMI_WBW_IE_PRESENT = 0x00000004,
+	WMI_CSWARP_IE_PRESENT = 0x00000008,
+};
+
+/* wmi CSA receive event from beacon frame */
+struct wmi_csa_event {
+	__le32 i_fc_dur;
+	/* Bit 0-15: FC */
+	/* Bit 16-31: DUR */
+	struct wmi_mac_addr i_addr1;
+	struct wmi_mac_addr i_addr2;
+	__le32 csa_ie[2];
+	__le32 xcsa_ie[2];
+	__le32 wb_ie[2];
+	__le32 cswarp_ie;
+	__le32 ies_present_flag; /* wmi_csa_event_ies_present_flag */
+} __packed;
+
+/* the definition of different PDEV parameters */
+#define PDEV_DEFAULT_STATS_UPDATE_PERIOD    500
+#define VDEV_DEFAULT_STATS_UPDATE_PERIOD    500
+#define PEER_DEFAULT_STATS_UPDATE_PERIOD    500
+
+enum wmi_pdev_param {
+	/* TX chian mask */
+	WMI_PDEV_PARAM_TX_CHAIN_MASK = 0x1,
+	/* RX chian mask */
+	WMI_PDEV_PARAM_RX_CHAIN_MASK,
+	/* TX power limit for 2G Radio */
+	WMI_PDEV_PARAM_TXPOWER_LIMIT2G,
+	/* TX power limit for 5G Radio */
+	WMI_PDEV_PARAM_TXPOWER_LIMIT5G,
+	/* TX power scale */
+	WMI_PDEV_PARAM_TXPOWER_SCALE,
+	/* Beacon generation mode . 0: host, 1: target   */
+	WMI_PDEV_PARAM_BEACON_GEN_MODE,
+	/* Beacon generation mode . 0: staggered 1: bursted   */
+	WMI_PDEV_PARAM_BEACON_TX_MODE,
+	/*
+	 * Resource manager off chan mode .
+	 * 0: turn off off chan mode. 1: turn on offchan mode
+	 */
+	WMI_PDEV_PARAM_RESMGR_OFFCHAN_MODE,
+	/*
+	 * Protection mode:
+	 * 0: no protection 1:use CTS-to-self 2: use RTS/CTS
+	 */
+	WMI_PDEV_PARAM_PROTECTION_MODE,
+	/* Dynamic bandwidth 0: disable 1: enable */
+	WMI_PDEV_PARAM_DYNAMIC_BW,
+	/* Non aggregrate/ 11g sw retry threshold.0-disable */
+	WMI_PDEV_PARAM_NON_AGG_SW_RETRY_TH,
+	/* aggregrate sw retry threshold. 0-disable*/
+	WMI_PDEV_PARAM_AGG_SW_RETRY_TH,
+	/* Station kickout threshold (non of consecutive failures).0-disable */
+	WMI_PDEV_PARAM_STA_KICKOUT_TH,
+	/* Aggerate size scaling configuration per AC */
+	WMI_PDEV_PARAM_AC_AGGRSIZE_SCALING,
+	/* LTR enable */
+	WMI_PDEV_PARAM_LTR_ENABLE,
+	/* LTR latency for BE, in us */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_BE,
+	/* LTR latency for BK, in us */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_BK,
+	/* LTR latency for VI, in us */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_VI,
+	/* LTR latency for VO, in us  */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_VO,
+	/* LTR AC latency timeout, in ms */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_TIMEOUT,
+	/* LTR platform latency override, in us */
+	WMI_PDEV_PARAM_LTR_SLEEP_OVERRIDE,
+	/* LTR-RX override, in us */
+	WMI_PDEV_PARAM_LTR_RX_OVERRIDE,
+	/* Tx activity timeout for LTR, in us */
+	WMI_PDEV_PARAM_LTR_TX_ACTIVITY_TIMEOUT,
+	/* L1SS state machine enable */
+	WMI_PDEV_PARAM_L1SS_ENABLE,
+	/* Deep sleep state machine enable */
+	WMI_PDEV_PARAM_DSLEEP_ENABLE,
+	/* RX buffering flush enable */
+	WMI_PDEV_PARAM_PCIELP_TXBUF_FLUSH,
+	/* RX buffering matermark */
+	WMI_PDEV_PARAM_PCIELP_TXBUF_WATERMARK,
+	/* RX buffering timeout enable */
+	WMI_PDEV_PARAM_PCIELP_TXBUF_TMO_EN,
+	/* RX buffering timeout value */
+	WMI_PDEV_PARAM_PCIELP_TXBUF_TMO_VALUE,
+	/* pdev level stats update period in ms */
+	WMI_PDEV_PARAM_PDEV_STATS_UPDATE_PERIOD,
+	/* vdev level stats update period in ms */
+	WMI_PDEV_PARAM_VDEV_STATS_UPDATE_PERIOD,
+	/* peer level stats update period in ms */
+	WMI_PDEV_PARAM_PEER_STATS_UPDATE_PERIOD,
+	/* beacon filter status update period */
+	WMI_PDEV_PARAM_BCNFLT_STATS_UPDATE_PERIOD,
+	/* QOS Mgmt frame protection MFP/PMF 0: disable, 1: enable */
+	WMI_PDEV_PARAM_PMF_QOS,
+	/* Access category on which ARP frames are sent */
+	WMI_PDEV_PARAM_ARP_AC_OVERRIDE,
+	/* DCS configuration */
+	WMI_PDEV_PARAM_DCS,
+	/* Enable/Disable ANI on target */
+	WMI_PDEV_PARAM_ANI_ENABLE,
+	/* configure the ANI polling period */
+	WMI_PDEV_PARAM_ANI_POLL_PERIOD,
+	/* configure the ANI listening period */
+	WMI_PDEV_PARAM_ANI_LISTEN_PERIOD,
+	/* configure OFDM immunity level */
+	WMI_PDEV_PARAM_ANI_OFDM_LEVEL,
+	/* configure CCK immunity level */
+	WMI_PDEV_PARAM_ANI_CCK_LEVEL,
+	/* Enable/Disable CDD for 1x1 STAs in rate control module */
+	WMI_PDEV_PARAM_DYNTXCHAIN,
+	/* Enable/Disable proxy STA */
+	WMI_PDEV_PARAM_PROXY_STA,
+	/* Enable/Disable low power state when all VDEVs are inactive/idle. */
+	WMI_PDEV_PARAM_IDLE_PS_CONFIG,
+	/* Enable/Disable power gating sleep */
+	WMI_PDEV_PARAM_POWER_GATING_SLEEP,
+};
+
+struct wmi_pdev_set_param_cmd {
+	__le32 param_id;
+	__le32 param_value;
+} __packed;
+
+struct wmi_pdev_get_tpc_config_cmd {
+	/* parameter   */
+	__le32 param;
+} __packed;
+
+#define WMI_TPC_RATE_MAX		160
+#define WMI_TPC_TX_N_CHAIN		4
+
+enum wmi_tpc_config_event_flag {
+	WMI_TPC_CONFIG_EVENT_FLAG_TABLE_CDD	= 0x1,
+	WMI_TPC_CONFIG_EVENT_FLAG_TABLE_STBC	= 0x2,
+	WMI_TPC_CONFIG_EVENT_FLAG_TABLE_TXBF	= 0x4,
+};
+
+struct wmi_pdev_tpc_config_event {
+	__le32 reg_domain;
+	__le32 chan_freq;
+	__le32 phy_mode;
+	__le32 twice_antenna_reduction;
+	__le32 twice_max_rd_power;
+	s32 twice_antenna_gain;
+	__le32 power_limit;
+	__le32 rate_max;
+	__le32 num_tx_chain;
+	__le32 ctl;
+	__le32 flags;
+	s8 max_reg_allow_pow[WMI_TPC_TX_N_CHAIN];
+	s8 max_reg_allow_pow_agcdd[WMI_TPC_TX_N_CHAIN][WMI_TPC_TX_N_CHAIN];
+	s8 max_reg_allow_pow_agstbc[WMI_TPC_TX_N_CHAIN][WMI_TPC_TX_N_CHAIN];
+	s8 max_reg_allow_pow_agtxbf[WMI_TPC_TX_N_CHAIN][WMI_TPC_TX_N_CHAIN];
+	u8 rates_array[WMI_TPC_RATE_MAX];
+} __packed;
+
+/* Transmit power scale factor. */
+enum wmi_tp_scale {
+	WMI_TP_SCALE_MAX    = 0,	/* no scaling (default) */
+	WMI_TP_SCALE_50     = 1,	/* 50% of max (-3 dBm) */
+	WMI_TP_SCALE_25     = 2,	/* 25% of max (-6 dBm) */
+	WMI_TP_SCALE_12     = 3,	/* 12% of max (-9 dBm) */
+	WMI_TP_SCALE_MIN    = 4,	/* min, but still on   */
+	WMI_TP_SCALE_SIZE   = 5,	/* max num of enum     */
+};
+
+struct wmi_set_channel_cmd {
+	/* channel (only frequency and mode info are used) */
+	struct wmi_channel chan;
+} __packed;
+
+struct wmi_pdev_chanlist_update_event {
+	/* number of channels */
+	__le32 num_chan;
+	/* array of channels */
+	struct wmi_channel channel_list[1];
+} __packed;
+
+#define WMI_MAX_DEBUG_MESG (sizeof(u32) * 32)
+
+struct wmi_debug_mesg_event {
+	/* message buffer, NULL terminated */
+	char bufp[WMI_MAX_DEBUG_MESG];
+} __packed;
+
+enum {
+	/* P2P device */
+	VDEV_SUBTYPE_P2PDEV = 0,
+	/* P2P client */
+	VDEV_SUBTYPE_P2PCLI,
+	/* P2P GO */
+	VDEV_SUBTYPE_P2PGO,
+	/* BT3.0 HS */
+	VDEV_SUBTYPE_BT,
+};
+
+struct wmi_pdev_set_channel_cmd {
+	/* idnore power , only use flags , mode and freq */
+	struct wmi_channel chan;
+} __packed;
+
+/* Customize the DSCP (bit) to TID (0-7) mapping for QOS */
+#define WMI_DSCP_MAP_MAX    (64)
+struct wmi_pdev_set_dscp_tid_map_cmd {
+	/* map indicating DSCP to TID conversion */
+	__le32 dscp_to_tid_map[WMI_DSCP_MAP_MAX];
+} __packed;
+
+enum mcast_bcast_rate_id {
+	WMI_SET_MCAST_RATE,
+	WMI_SET_BCAST_RATE
+};
+
+struct mcast_bcast_rate {
+	enum mcast_bcast_rate_id rate_id;
+	__le32 rate;
+} __packed;
+
+struct wmi_wmm_params {
+	__le32 cwmin;
+	__le32 cwmax;
+	__le32 aifs;
+	__le32 txop;
+	__le32 acm;
+	__le32 no_ack;
+} __packed;
+
+struct wmi_pdev_set_wmm_params {
+	struct wmi_wmm_params ac_be;
+	struct wmi_wmm_params ac_bk;
+	struct wmi_wmm_params ac_vi;
+	struct wmi_wmm_params ac_vo;
+} __packed;
+
+struct wmi_wmm_params_arg {
+	u32 cwmin;
+	u32 cwmax;
+	u32 aifs;
+	u32 txop;
+	u32 acm;
+	u32 no_ack;
+};
+
+struct wmi_pdev_set_wmm_params_arg {
+	struct wmi_wmm_params_arg ac_be;
+	struct wmi_wmm_params_arg ac_bk;
+	struct wmi_wmm_params_arg ac_vi;
+	struct wmi_wmm_params_arg ac_vo;
+};
+
+struct wal_dbg_tx_stats {
+	/* Num HTT cookies queued to dispatch list */
+	__le32 comp_queued;
+
+	/* Num HTT cookies dispatched */
+	__le32 comp_delivered;
+
+	/* Num MSDU queued to WAL */
+	__le32 msdu_enqued;
+
+	/* Num MPDU queue to WAL */
+	__le32 mpdu_enqued;
+
+	/* Num MSDUs dropped by WMM limit */
+	__le32 wmm_drop;
+
+	/* Num Local frames queued */
+	__le32 local_enqued;
+
+	/* Num Local frames done */
+	__le32 local_freed;
+
+	/* Num queued to HW */
+	__le32 hw_queued;
+
+	/* Num PPDU reaped from HW */
+	__le32 hw_reaped;
+
+	/* Num underruns */
+	__le32 underrun;
+
+	/* Num PPDUs cleaned up in TX abort */
+	__le32 tx_abort;
+
+	/* Num MPDUs requed by SW */
+	__le32 mpdus_requed;
+
+	/* excessive retries */
+	__le32 tx_ko;
+
+	/* data hw rate code */
+	__le32 data_rc;
+
+	/* Scheduler self triggers */
+	__le32 self_triggers;
+
+	/* frames dropped due to excessive sw retries */
+	__le32 sw_retry_failure;
+
+	/* illegal rate phy errors  */
+	__le32 illgl_rate_phy_err;
+
+	/* wal pdev continous xretry */
+	__le32 pdev_cont_xretry;
+
+	/* wal pdev continous xretry */
+	__le32 pdev_tx_timeout;
+
+	/* wal pdev resets  */
+	__le32 pdev_resets;
+
+	__le32 phy_underrun;
+
+	/* MPDU is more than txop limit */
+	__le32 txop_ovf;
+} __packed;
+
+struct wal_dbg_rx_stats {
+	/* Cnts any change in ring routing mid-ppdu */
+	__le32 mid_ppdu_route_change;
+
+	/* Total number of statuses processed */
+	__le32 status_rcvd;
+
+	/* Extra frags on rings 0-3 */
+	__le32 r0_frags;
+	__le32 r1_frags;
+	__le32 r2_frags;
+	__le32 r3_frags;
+
+	/* MSDUs / MPDUs delivered to HTT */
+	__le32 htt_msdus;
+	__le32 htt_mpdus;
+
+	/* MSDUs / MPDUs delivered to local stack */
+	__le32 loc_msdus;
+	__le32 loc_mpdus;
+
+	/* AMSDUs that have more MSDUs than the status ring size */
+	__le32 oversize_amsdu;
+
+	/* Number of PHY errors */
+	__le32 phy_errs;
+
+	/* Number of PHY errors drops */
+	__le32 phy_err_drop;
+
+	/* Number of mpdu errors - FCS, MIC, ENC etc. */
+	__le32 mpdu_errs;
+} __packed;
+
+struct wal_dbg_peer_stats {
+	/* REMOVE THIS ONCE REAL PEER STAT COUNTERS ARE ADDED */
+	__le32 dummy;
+} __packed;
+
+struct wal_dbg_stats {
+	struct wal_dbg_tx_stats tx;
+	struct wal_dbg_rx_stats rx;
+	struct wal_dbg_peer_stats peer;
+} __packed;
+
+enum wmi_stats_id {
+	WMI_REQUEST_PEER_STAT	= 0x01,
+	WMI_REQUEST_AP_STAT	= 0x02
+};
+
+struct wmi_request_stats_cmd {
+	__le32 stats_id;
+
+	/*
+	 * Space to add parameters like
+	 * peer mac addr
+	 */
+} __packed;
+
+/* Suspend option */
+enum {
+	/* suspend */
+	WMI_PDEV_SUSPEND,
+
+	/* suspend and disable all interrupts */
+	WMI_PDEV_SUSPEND_AND_DISABLE_INTR,
+};
+
+struct wmi_pdev_suspend_cmd {
+	/* suspend option sent to target */
+	__le32 suspend_opt;
+} __packed;
+
+struct wmi_stats_event {
+	__le32 stats_id; /* %WMI_REQUEST_ */
+	/*
+	 * number of pdev stats event structures
+	 * (wmi_pdev_stats) 0 or 1
+	 */
+	__le32 num_pdev_stats;
+	/*
+	 * number of vdev stats event structures
+	 * (wmi_vdev_stats) 0 or max vdevs
+	 */
+	__le32 num_vdev_stats;
+	/*
+	 * number of peer stats event structures
+	 * (wmi_peer_stats) 0 or max peers
+	 */
+	__le32 num_peer_stats;
+	__le32 num_bcnflt_stats;
+	/*
+	 * followed by
+	 *   num_pdev_stats * size of(struct wmi_pdev_stats)
+	 *   num_vdev_stats * size of(struct wmi_vdev_stats)
+	 *   num_peer_stats * size of(struct wmi_peer_stats)
+	 *
+	 *  By having a zero sized array, the pointer to data area
+	 *  becomes available without increasing the struct size
+	 */
+	u8 data[0];
+} __packed;
+
+/*
+ * PDEV statistics
+ * TODO: add all PDEV stats here
+ */
+struct wmi_pdev_stats {
+	__le32 chan_nf;        /* Channel noise floor */
+	__le32 tx_frame_count; /* TX frame count */
+	__le32 rx_frame_count; /* RX frame count */
+	__le32 rx_clear_count; /* rx clear count */
+	__le32 cycle_count;    /* cycle count */
+	__le32 phy_err_count;  /* Phy error count */
+	__le32 chan_tx_pwr;    /* channel tx power */
+	struct wal_dbg_stats wal; /* WAL dbg stats */
+} __packed;
+
+/*
+ * VDEV statistics
+ * TODO: add all VDEV stats here
+ */
+struct wmi_vdev_stats {
+	__le32 vdev_id;
+} __packed;
+
+/*
+ * peer statistics.
+ * TODO: add more stats
+ */
+struct wmi_peer_stats {
+	struct wmi_mac_addr peer_macaddr;
+	__le32 peer_rssi;
+	__le32 peer_tx_rate;
+} __packed;
+
+struct wmi_vdev_create_cmd {
+	__le32 vdev_id;
+	__le32 vdev_type;
+	__le32 vdev_subtype;
+	struct wmi_mac_addr vdev_macaddr;
+} __packed;
+
+enum wmi_vdev_type {
+	WMI_VDEV_TYPE_AP      = 1,
+	WMI_VDEV_TYPE_STA     = 2,
+	WMI_VDEV_TYPE_IBSS    = 3,
+	WMI_VDEV_TYPE_MONITOR = 4,
+};
+
+enum wmi_vdev_subtype {
+	WMI_VDEV_SUBTYPE_NONE       = 0,
+	WMI_VDEV_SUBTYPE_P2P_DEVICE = 1,
+	WMI_VDEV_SUBTYPE_P2P_CLIENT = 2,
+	WMI_VDEV_SUBTYPE_P2P_GO     = 3,
+};
+
+/* values for vdev_subtype */
+
+/* values for vdev_start_request flags */
+/*
+ * Indicates that AP VDEV uses hidden ssid. only valid for
+ *  AP/GO */
+#define WMI_VDEV_START_HIDDEN_SSID  (1<<0)
+/*
+ * Indicates if robust management frame/management frame
+ *  protection is enabled. For GO/AP vdevs, it indicates that
+ *  it may support station/client associations with RMF enabled.
+ *  For STA/client vdevs, it indicates that sta will
+ *  associate with AP with RMF enabled. */
+#define WMI_VDEV_START_PMF_ENABLED  (1<<1)
+
+struct wmi_p2p_noa_descriptor {
+	__le32 type_count; /* 255: continuous schedule, 0: reserved */
+	__le32 duration;  /* Absent period duration in micro seconds */
+	__le32 interval;   /* Absent period interval in micro seconds */
+	__le32 start_time; /* 32 bit tsf time when in starts */
+} __packed;
+
+struct wmi_vdev_start_request_cmd {
+	/* WMI channel */
+	struct wmi_channel chan;
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* requestor id identifying the caller module */
+	__le32 requestor_id;
+	/* beacon interval from received beacon */
+	__le32 beacon_interval;
+	/* DTIM Period from the received beacon */
+	__le32 dtim_period;
+	/* Flags */
+	__le32 flags;
+	/* ssid field. Only valid for AP/GO/IBSS/BTAmp VDEV type. */
+	struct wmi_ssid ssid;
+	/* beacon/probe reponse xmit rate. Applicable for SoftAP. */
+	__le32 bcn_tx_rate;
+	/* beacon/probe reponse xmit power. Applicable for SoftAP. */
+	__le32 bcn_tx_power;
+	/* number of p2p NOA descriptor(s) from scan entry */
+	__le32 num_noa_descriptors;
+	/*
+	 * Disable H/W ack. This used by WMI_VDEV_RESTART_REQUEST_CMDID.
+	 * During CAC, Our HW shouldn't ack ditected frames
+	 */
+	__le32 disable_hw_ack;
+	/* actual p2p NOA descriptor from scan entry */
+	struct wmi_p2p_noa_descriptor noa_descriptors[2];
+} __packed;
+
+struct wmi_vdev_restart_request_cmd {
+	struct wmi_vdev_start_request_cmd vdev_start_request_cmd;
+} __packed;
+
+struct wmi_vdev_start_request_arg {
+	u32 vdev_id;
+	struct wmi_channel_arg channel;
+	u32 bcn_intval;
+	u32 dtim_period;
+	u8 *ssid;
+	u32 ssid_len;
+	u32 bcn_tx_rate;
+	u32 bcn_tx_power;
+	bool disable_hw_ack;
+	bool hidden_ssid;
+	bool pmf_enabled;
+};
+
+struct wmi_vdev_delete_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_up_cmd {
+	__le32 vdev_id;
+	__le32 vdev_assoc_id;
+	struct wmi_mac_addr vdev_bssid;
+} __packed;
+
+struct wmi_vdev_stop_cmd {
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_down_cmd {
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_standby_response_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_resume_response_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_set_param_cmd {
+	__le32 vdev_id;
+	__le32 param_id;
+	__le32 param_value;
+} __packed;
+
+#define WMI_MAX_KEY_INDEX   3
+#define WMI_MAX_KEY_LEN     32
+
+#define WMI_KEY_PAIRWISE 0x00
+#define WMI_KEY_GROUP    0x01
+#define WMI_KEY_TX_USAGE 0x02 /* default tx key - static wep */
+
+struct wmi_key_seq_counter {
+	__le32 key_seq_counter_l;
+	__le32 key_seq_counter_h;
+} __packed;
+
+#define WMI_CIPHER_NONE     0x0 /* clear key */
+#define WMI_CIPHER_WEP      0x1
+#define WMI_CIPHER_TKIP     0x2
+#define WMI_CIPHER_AES_OCB  0x3
+#define WMI_CIPHER_AES_CCM  0x4
+#define WMI_CIPHER_WAPI     0x5
+#define WMI_CIPHER_CKIP     0x6
+#define WMI_CIPHER_AES_CMAC 0x7
+
+struct wmi_vdev_install_key_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+	__le32 key_idx;
+	__le32 key_flags;
+	__le32 key_cipher; /* %WMI_CIPHER_ */
+	struct wmi_key_seq_counter key_rsc_counter;
+	struct wmi_key_seq_counter key_global_rsc_counter;
+	struct wmi_key_seq_counter key_tsc_counter;
+	u8 wpi_key_rsc_counter[16];
+	u8 wpi_key_tsc_counter[16];
+	__le32 key_len;
+	__le32 key_txmic_len;
+	__le32 key_rxmic_len;
+
+	/* contains key followed by tx mic followed by rx mic */
+	u8 key_data[0];
+} __packed;
+
+struct wmi_vdev_install_key_arg {
+	u32 vdev_id;
+	const u8 *macaddr;
+	u32 key_idx;
+	u32 key_flags;
+	u32 key_cipher;
+	u32 key_len;
+	u32 key_txmic_len;
+	u32 key_rxmic_len;
+	const void *key_data;
+};
+
+/* Preamble types to be used with VDEV fixed rate configuration */
+enum wmi_rate_preamble {
+	WMI_RATE_PREAMBLE_OFDM,
+	WMI_RATE_PREAMBLE_CCK,
+	WMI_RATE_PREAMBLE_HT,
+	WMI_RATE_PREAMBLE_VHT,
+};
+
+/* Value to disable fixed rate setting */
+#define WMI_FIXED_RATE_NONE    (0xff)
+
+/* the definition of different VDEV parameters */
+enum wmi_vdev_param {
+	/* RTS Threshold */
+	WMI_VDEV_PARAM_RTS_THRESHOLD = 0x1,
+	/* Fragmentation threshold */
+	WMI_VDEV_PARAM_FRAGMENTATION_THRESHOLD,
+	/* beacon interval in TUs */
+	WMI_VDEV_PARAM_BEACON_INTERVAL,
+	/* Listen interval in TUs */
+	WMI_VDEV_PARAM_LISTEN_INTERVAL,
+	/* muticast rate in Mbps */
+	WMI_VDEV_PARAM_MULTICAST_RATE,
+	/* management frame rate in Mbps */
+	WMI_VDEV_PARAM_MGMT_TX_RATE,
+	/* slot time (long vs short) */
+	WMI_VDEV_PARAM_SLOT_TIME,
+	/* preamble (long vs short) */
+	WMI_VDEV_PARAM_PREAMBLE,
+	/* SWBA time (time before tbtt in msec) */
+	WMI_VDEV_PARAM_SWBA_TIME,
+	/* time period for updating VDEV stats */
+	WMI_VDEV_STATS_UPDATE_PERIOD,
+	/* age out time in msec for frames queued for station in power save */
+	WMI_VDEV_PWRSAVE_AGEOUT_TIME,
+	/*
+	 * Host SWBA interval (time in msec before tbtt for SWBA event
+	 * generation).
+	 */
+	WMI_VDEV_HOST_SWBA_INTERVAL,
+	/* DTIM period (specified in units of num beacon intervals) */
+	WMI_VDEV_PARAM_DTIM_PERIOD,
+	/*
+	 * scheduler air time limit for this VDEV. used by off chan
+	 * scheduler.
+	 */
+	WMI_VDEV_OC_SCHEDULER_AIR_TIME_LIMIT,
+	/* enable/dsiable WDS for this VDEV  */
+	WMI_VDEV_PARAM_WDS,
+	/* ATIM Window */
+	WMI_VDEV_PARAM_ATIM_WINDOW,
+	/* BMISS max */
+	WMI_VDEV_PARAM_BMISS_COUNT_MAX,
+	/* BMISS first time */
+	WMI_VDEV_PARAM_BMISS_FIRST_BCNT,
+	/* BMISS final time */
+	WMI_VDEV_PARAM_BMISS_FINAL_BCNT,
+	/* WMM enables/disabled */
+	WMI_VDEV_PARAM_FEATURE_WMM,
+	/* Channel width */
+	WMI_VDEV_PARAM_CHWIDTH,
+	/* Channel Offset */
+	WMI_VDEV_PARAM_CHEXTOFFSET,
+	/* Disable HT Protection */
+	WMI_VDEV_PARAM_DISABLE_HTPROTECTION,
+	/* Quick STA Kickout */
+	WMI_VDEV_PARAM_STA_QUICKKICKOUT,
+	/* Rate to be used with Management frames */
+	WMI_VDEV_PARAM_MGMT_RATE,
+	/* Protection Mode */
+	WMI_VDEV_PARAM_PROTECTION_MODE,
+	/* Fixed rate setting */
+	WMI_VDEV_PARAM_FIXED_RATE,
+	/* Short GI Enable/Disable */
+	WMI_VDEV_PARAM_SGI,
+	/* Enable LDPC */
+	WMI_VDEV_PARAM_LDPC,
+	/* Enable Tx STBC */
+	WMI_VDEV_PARAM_TX_STBC,
+	/* Enable Rx STBC */
+	WMI_VDEV_PARAM_RX_STBC,
+	/* Intra BSS forwarding  */
+	WMI_VDEV_PARAM_INTRA_BSS_FWD,
+	/* Setting Default xmit key for Vdev */
+	WMI_VDEV_PARAM_DEF_KEYID,
+	/* NSS width */
+	WMI_VDEV_PARAM_NSS,
+	/* Set the custom rate for the broadcast data frames */
+	WMI_VDEV_PARAM_BCAST_DATA_RATE,
+	/* Set the custom rate (rate-code) for multicast data frames */
+	WMI_VDEV_PARAM_MCAST_DATA_RATE,
+	/* Tx multicast packet indicate Enable/Disable */
+	WMI_VDEV_PARAM_MCAST_INDICATE,
+	/* Tx DHCP packet indicate Enable/Disable */
+	WMI_VDEV_PARAM_DHCP_INDICATE,
+	/* Enable host inspection of Tx unicast packet to unknown destination */
+	WMI_VDEV_PARAM_UNKNOWN_DEST_INDICATE,
+
+	/* The minimum amount of time AP begins to consider STA inactive */
+	WMI_VDEV_PARAM_AP_KEEPALIVE_MIN_IDLE_INACTIVE_TIME_SECS,
+
+	/*
+	 * An associated STA is considered inactive when there is no recent
+	 * TX/RX activity and no downlink frames are buffered for it. Once a
+	 * STA exceeds the maximum idle inactive time, the AP will send an
+	 * 802.11 data-null as a keep alive to verify the STA is still
+	 * associated. If the STA does ACK the data-null, or if the data-null
+	 * is buffered and the STA does not retrieve it, the STA will be
+	 * considered unresponsive
+	 * (see WMI_VDEV_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS).
+	 */
+	WMI_VDEV_PARAM_AP_KEEPALIVE_MAX_IDLE_INACTIVE_TIME_SECS,
+
+	/*
+	 * An associated STA is considered unresponsive if there is no recent
+	 * TX/RX activity and downlink frames are buffered for it. Once a STA
+	 * exceeds the maximum unresponsive time, the AP will send a
+	 * WMI_STA_KICKOUT event to the host so the STA can be deleted. */
+	WMI_VDEV_PARAM_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS,
+
+	/* Enable NAWDS : MCAST INSPECT Enable, NAWDS Flag set */
+	WMI_VDEV_PARAM_AP_ENABLE_NAWDS,
+	/* Enable/Disable RTS-CTS */
+	WMI_VDEV_PARAM_ENABLE_RTSCTS,
+	/* Enable TXBFee/er */
+	WMI_VDEV_PARAM_TXBF,
+
+	/* Set packet power save */
+	WMI_VDEV_PARAM_PACKET_POWERSAVE,
+
+	/*
+	 * Drops un-encrypted packets if eceived in an encrypted connection
+	 * otherwise forwards to host.
+	 */
+	WMI_VDEV_PARAM_DROP_UNENCRY,
+
+	/*
+	 * Set the encapsulation type for frames.
+	 */
+	WMI_VDEV_PARAM_TX_ENCAP_TYPE,
+};
+
+/* slot time long */
+#define WMI_VDEV_SLOT_TIME_LONG		0x1
+/* slot time short */
+#define WMI_VDEV_SLOT_TIME_SHORT	0x2
+/* preablbe long */
+#define WMI_VDEV_PREAMBLE_LONG		0x1
+/* preablbe short */
+#define WMI_VDEV_PREAMBLE_SHORT		0x2
+
+enum wmi_start_event_param {
+	WMI_VDEV_RESP_START_EVENT = 0,
+	WMI_VDEV_RESP_RESTART_EVENT,
+};
+
+struct wmi_vdev_start_response_event {
+	__le32 vdev_id;
+	__le32 req_id;
+	__le32 resp_type; /* %WMI_VDEV_RESP_ */
+	__le32 status;
+} __packed;
+
+struct wmi_vdev_standby_req_event {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_resume_req_event {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_stopped_event {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+/*
+ * common structure used for simple events
+ * (stopped, resume_req, standby response)
+ */
+struct wmi_vdev_simple_event {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+/* VDEV start response status codes */
+/* VDEV succesfully started */
+#define WMI_INIFIED_VDEV_START_RESPONSE_STATUS_SUCCESS	0x0
+
+/* requested VDEV not found */
+#define WMI_INIFIED_VDEV_START_RESPONSE_INVALID_VDEVID	0x1
+
+/* unsupported VDEV combination */
+#define WMI_INIFIED_VDEV_START_RESPONSE_NOT_SUPPORTED	0x2
+
+/* Beacon processing related command and event structures */
+struct wmi_bcn_tx_hdr {
+	__le32 vdev_id;
+	__le32 tx_rate;
+	__le32 tx_power;
+	__le32 bcn_len;
+} __packed;
+
+struct wmi_bcn_tx_cmd {
+	struct wmi_bcn_tx_hdr hdr;
+	u8 *bcn[0];
+} __packed;
+
+struct wmi_bcn_tx_arg {
+	u32 vdev_id;
+	u32 tx_rate;
+	u32 tx_power;
+	u32 bcn_len;
+	const void *bcn;
+};
+
+/* Beacon filter */
+#define WMI_BCN_FILTER_ALL   0 /* Filter all beacons */
+#define WMI_BCN_FILTER_NONE  1 /* Pass all beacons */
+#define WMI_BCN_FILTER_RSSI  2 /* Pass Beacons RSSI >= RSSI threshold */
+#define WMI_BCN_FILTER_BSSID 3 /* Pass Beacons with matching BSSID */
+#define WMI_BCN_FILTER_SSID  4 /* Pass Beacons with matching SSID */
+
+struct wmi_bcn_filter_rx_cmd {
+	/* Filter ID */
+	__le32 bcn_filter_id;
+	/* Filter type - wmi_bcn_filter */
+	__le32 bcn_filter;
+	/* Buffer len */
+	__le32 bcn_filter_len;
+	/* Filter info (threshold, BSSID, RSSI) */
+	u8 *bcn_filter_buf;
+} __packed;
+
+/* Capabilities and IEs to be passed to firmware */
+struct wmi_bcn_prb_info {
+	/* Capabilities */
+	__le32 caps;
+	/* ERP info */
+	__le32 erp;
+	/* Advanced capabilities */
+	/* HT capabilities */
+	/* HT Info */
+	/* ibss_dfs */
+	/* wpa Info */
+	/* rsn Info */
+	/* rrm info */
+	/* ath_ext */
+	/* app IE */
+} __packed;
+
+struct wmi_bcn_tmpl_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* TIM IE offset from the beginning of the template. */
+	__le32 tim_ie_offset;
+	/* beacon probe capabilities and IEs */
+	struct wmi_bcn_prb_info bcn_prb_info;
+	/* beacon buffer length */
+	__le32 buf_len;
+	/* variable length data */
+	u8 data[1];
+} __packed;
+
+struct wmi_prb_tmpl_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* beacon probe capabilities and IEs */
+	struct wmi_bcn_prb_info bcn_prb_info;
+	/* beacon buffer length */
+	__le32 buf_len;
+	/* Variable length data */
+	u8 data[1];
+} __packed;
+
+enum wmi_sta_ps_mode {
+	/* enable power save for the given STA VDEV */
+	WMI_STA_PS_MODE_DISABLED = 0,
+	/* disable power save  for a given STA VDEV */
+	WMI_STA_PS_MODE_ENABLED = 1,
+};
+
+struct wmi_sta_powersave_mode_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+
+	/*
+	 * Power save mode
+	 * (see enum wmi_sta_ps_mode)
+	 */
+	__le32 sta_ps_mode;
+} __packed;
+
+enum wmi_csa_offload_en {
+	WMI_CSA_OFFLOAD_DISABLE = 0,
+	WMI_CSA_OFFLOAD_ENABLE = 1,
+};
+
+struct wmi_csa_offload_enable_cmd {
+	__le32 vdev_id;
+	__le32 csa_offload_enable;
+} __packed;
+
+struct wmi_csa_offload_chanswitch_cmd {
+	__le32 vdev_id;
+	struct wmi_channel chan;
+} __packed;
+
+/*
+ * This parameter controls the policy for retrieving frames from AP while the
+ * STA is in sleep state.
+ *
+ * Only takes affect if the sta_ps_mode is enabled
+ */
+enum wmi_sta_ps_param_rx_wake_policy {
+	/*
+	 * Wake up when ever there is an  RX activity on the VDEV. In this mode
+	 * the Power save SM(state machine) will come out of sleep by either
+	 * sending null frame (or) a data frame (with PS==0) in response to TIM
+	 * bit set in the received beacon frame from AP.
+	 */
+	WMI_STA_PS_RX_WAKE_POLICY_WAKE = 0,
+
+	/*
+	 * Here the power save state machine will not wakeup in response to TIM
+	 * bit, instead it will send a PSPOLL (or) UASPD trigger based on UAPSD
+	 * configuration setup by WMISET_PS_SET_UAPSD  WMI command.  When all
+	 * access categories are delivery-enabled, the station will send a
+	 * UAPSD trigger frame, otherwise it will send a PS-Poll.
+	 */
+	WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD = 1,
+};
+
+/*
+ * Number of tx frames/beacon  that cause the power save SM to wake up.
+ *
+ * Value 1 causes the SM to wake up for every TX. Value 0 has a special
+ * meaning, It will cause the SM to never wake up. This is useful if you want
+ * to keep the system to sleep all the time for some kind of test mode . host
+ * can change this parameter any time.  It will affect at the next tx frame.
+ */
+enum wmi_sta_ps_param_tx_wake_threshold {
+	WMI_STA_PS_TX_WAKE_THRESHOLD_NEVER = 0,
+	WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS = 1,
+
+	/*
+	 * Values greater than one indicate that many TX attempts per beacon
+	 * interval before the STA will wake up
+	 */
+};
+
+/*
+ * The maximum number of PS-Poll frames the FW will send in response to
+ * traffic advertised in TIM before waking up (by sending a null frame with PS
+ * = 0). Value 0 has a special meaning: there is no maximum count and the FW
+ * will send as many PS-Poll as are necessary to retrieve buffered BU. This
+ * parameter is used when the RX wake policy is
+ * WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD and ignored when the RX wake
+ * policy is WMI_STA_PS_RX_WAKE_POLICY_WAKE.
+ */
+enum wmi_sta_ps_param_pspoll_count {
+	WMI_STA_PS_PSPOLL_COUNT_NO_MAX = 0,
+	/*
+	 * Values greater than 0 indicate the maximum numer of PS-Poll frames
+	 * FW will send before waking up.
+	 */
+};
+
+/*
+ * This will include the delivery and trigger enabled state for every AC.
+ * This is the negotiated state with AP. The host MLME needs to set this based
+ * on AP capability and the state Set in the association request by the
+ * station MLME.Lower 8 bits of the value specify the UAPSD configuration.
+ */
+#define WMI_UAPSD_AC_TYPE_DELI 0
+#define WMI_UAPSD_AC_TYPE_TRIG 1
+
+#define WMI_UAPSD_AC_BIT_MASK(ac, type) \
+	((type ==  WMI_UAPSD_AC_TYPE_DELI) ? (1<<(ac<<1)) : (1<<((ac<<1)+1)))
+
+enum wmi_sta_ps_param_uapsd {
+	WMI_STA_PS_UAPSD_AC0_DELIVERY_EN = (1 << 0),
+	WMI_STA_PS_UAPSD_AC0_TRIGGER_EN  = (1 << 1),
+	WMI_STA_PS_UAPSD_AC1_DELIVERY_EN = (1 << 2),
+	WMI_STA_PS_UAPSD_AC1_TRIGGER_EN  = (1 << 3),
+	WMI_STA_PS_UAPSD_AC2_DELIVERY_EN = (1 << 4),
+	WMI_STA_PS_UAPSD_AC2_TRIGGER_EN  = (1 << 5),
+	WMI_STA_PS_UAPSD_AC3_DELIVERY_EN = (1 << 6),
+	WMI_STA_PS_UAPSD_AC3_TRIGGER_EN  = (1 << 7),
+};
+
+enum wmi_sta_powersave_param {
+	/*
+	 * Controls how frames are retrievd from AP while STA is sleeping
+	 *
+	 * (see enum wmi_sta_ps_param_rx_wake_policy)
+	 */
+	WMI_STA_PS_PARAM_RX_WAKE_POLICY = 0,
+
+	/*
+	 * The STA will go active after this many TX
+	 *
+	 * (see enum wmi_sta_ps_param_tx_wake_threshold)
+	 */
+	WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD = 1,
+
+	/*
+	 * Number of PS-Poll to send before STA wakes up
+	 *
+	 * (see enum wmi_sta_ps_param_pspoll_count)
+	 *
+	 */
+	WMI_STA_PS_PARAM_PSPOLL_COUNT = 2,
+
+	/*
+	 * TX/RX inactivity time in msec before going to sleep.
+	 *
+	 * The power save SM will monitor tx/rx activity on the VDEV, if no
+	 * activity for the specified msec of the parameter the Power save
+	 * SM will go to sleep.
+	 */
+	WMI_STA_PS_PARAM_INACTIVITY_TIME = 3,
+
+	/*
+	 * Set uapsd configuration.
+	 *
+	 * (see enum wmi_sta_ps_param_uapsd)
+	 */
+	WMI_STA_PS_PARAM_UAPSD = 4,
+};
+
+struct wmi_sta_powersave_param_cmd {
+	__le32 vdev_id;
+	__le32 param_id; /* %WMI_STA_PS_PARAM_ */
+	__le32 param_value;
+} __packed;
+
+/* No MIMO power save */
+#define WMI_STA_MIMO_PS_MODE_DISABLE
+/* mimo powersave mode static*/
+#define WMI_STA_MIMO_PS_MODE_STATIC
+/* mimo powersave mode dynamic */
+#define WMI_STA_MIMO_PS_MODE_DYNAMIC
+
+struct wmi_sta_mimo_ps_mode_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* mimo powersave mode as defined above */
+	__le32 mimo_pwrsave_mode;
+} __packed;
+
+/* U-APSD configuration of peer station from (re)assoc request and TSPECs */
+enum wmi_ap_ps_param_uapsd {
+	WMI_AP_PS_UAPSD_AC0_DELIVERY_EN = (1 << 0),
+	WMI_AP_PS_UAPSD_AC0_TRIGGER_EN  = (1 << 1),
+	WMI_AP_PS_UAPSD_AC1_DELIVERY_EN = (1 << 2),
+	WMI_AP_PS_UAPSD_AC1_TRIGGER_EN  = (1 << 3),
+	WMI_AP_PS_UAPSD_AC2_DELIVERY_EN = (1 << 4),
+	WMI_AP_PS_UAPSD_AC2_TRIGGER_EN  = (1 << 5),
+	WMI_AP_PS_UAPSD_AC3_DELIVERY_EN = (1 << 6),
+	WMI_AP_PS_UAPSD_AC3_TRIGGER_EN  = (1 << 7),
+};
+
+/* U-APSD maximum service period of peer station */
+enum wmi_ap_ps_peer_param_max_sp {
+	WMI_AP_PS_PEER_PARAM_MAX_SP_UNLIMITED = 0,
+	WMI_AP_PS_PEER_PARAM_MAX_SP_2 = 1,
+	WMI_AP_PS_PEER_PARAM_MAX_SP_4 = 2,
+	WMI_AP_PS_PEER_PARAM_MAX_SP_6 = 3,
+	MAX_WMI_AP_PS_PEER_PARAM_MAX_SP,
+};
+
+/*
+ * AP power save parameter
+ * Set a power save specific parameter for a peer station
+ */
+enum wmi_ap_ps_peer_param {
+	/* Set uapsd configuration for a given peer.
+	 *
+	 * Include the delivery and trigger enabled state for every AC.
+	 * The host  MLME needs to set this based on AP capability and stations
+	 * request Set in the association request  received from the station.
+	 *
+	 * Lower 8 bits of the value specify the UAPSD configuration.
+	 *
+	 * (see enum wmi_ap_ps_param_uapsd)
+	 * The default value is 0.
+	 */
+	WMI_AP_PS_PEER_PARAM_UAPSD = 0,
+
+	/*
+	 * Set the service period for a UAPSD capable station
+	 *
+	 * The service period from wme ie in the (re)assoc request frame.
+	 *
+	 * (see enum wmi_ap_ps_peer_param_max_sp)
+	 */
+	WMI_AP_PS_PEER_PARAM_MAX_SP = 1,
+
+	/* Time in seconds for aging out buffered frames for STA in PS */
+	WMI_AP_PS_PEER_PARAM_AGEOUT_TIME = 2,
+};
+
+struct wmi_ap_ps_peer_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+
+	/* AP powersave param (see enum wmi_ap_ps_peer_param) */
+	__le32 param_id;
+
+	/* AP powersave param value */
+	__le32 param_value;
+} __packed;
+
+/* 128 clients = 4 words */
+#define WMI_TIM_BITMAP_ARRAY_SIZE 4
+
+struct wmi_tim_info {
+	__le32 tim_len;
+	__le32 tim_mcast;
+	__le32 tim_bitmap[WMI_TIM_BITMAP_ARRAY_SIZE];
+	__le32 tim_changed;
+	__le32 tim_num_ps_pending;
+} __packed;
+
+/* Maximum number of NOA Descriptors supported */
+#define WMI_P2P_MAX_NOA_DESCRIPTORS 4
+#define WMI_P2P_OPPPS_ENABLE_BIT	BIT(0)
+#define WMI_P2P_OPPPS_CTWINDOW_OFFSET	1
+#define WMI_P2P_NOA_CHANGED_BIT	BIT(0)
+
+struct wmi_p2p_noa_info {
+	/* Bit 0 - Flag to indicate an update in NOA schedule
+	   Bits 7-1 - Reserved */
+	u8 changed;
+	/* NOA index */
+	u8 index;
+	/* Bit 0 - Opp PS state of the AP
+	   Bits 1-7 - Ctwindow in TUs */
+	u8 ctwindow_oppps;
+	/* Number of NOA descriptors */
+	u8 num_descriptors;
+
+	struct wmi_p2p_noa_descriptor descriptors[WMI_P2P_MAX_NOA_DESCRIPTORS];
+} __packed;
+
+struct wmi_bcn_info {
+	struct wmi_tim_info tim_info;
+	struct wmi_p2p_noa_info p2p_noa_info;
+} __packed;
+
+struct wmi_host_swba_event {
+	__le32 vdev_map;
+	struct wmi_bcn_info bcn_info[1];
+} __packed;
+
+#define WMI_MAX_AP_VDEV 16
+
+struct wmi_tbtt_offset_event {
+	__le32 vdev_map;
+	__le32 tbttoffset_list[WMI_MAX_AP_VDEV];
+} __packed;
+
+
+struct wmi_peer_create_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+struct wmi_peer_delete_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+struct wmi_peer_flush_tids_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+	__le32 peer_tid_bitmap;
+} __packed;
+
+struct wmi_fixed_rate {
+	/*
+	 * rate mode . 0: disable fixed rate (auto rate)
+	 *   1: legacy (non 11n) rate  specified as ieee rate 2*Mbps
+	 *   2: ht20 11n rate  specified as mcs index
+	 *   3: ht40 11n rate  specified as mcs index
+	 */
+	__le32  rate_mode;
+	/*
+	 * 4 rate values for 4 rate series. series 0 is stored in byte 0 (LSB)
+	 * and series 3 is stored at byte 3 (MSB)
+	 */
+	__le32  rate_series;
+	/*
+	 * 4 retry counts for 4 rate series. retry count for rate 0 is stored
+	 * in byte 0 (LSB) and retry count for rate 3 is stored at byte 3
+	 * (MSB)
+	 */
+	__le32  rate_retries;
+} __packed;
+
+struct wmi_peer_fixed_rate_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* fixed rate */
+	struct wmi_fixed_rate peer_fixed_rate;
+} __packed;
+
+#define WMI_MGMT_TID    17
+
+struct wmi_addba_clear_resp_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+struct wmi_addba_send_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* Tid number */
+	__le32 tid;
+	/* Buffer/Window size*/
+	__le32 buffersize;
+} __packed;
+
+struct wmi_delba_send_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* Tid number */
+	__le32 tid;
+	/* Is Initiator */
+	__le32 initiator;
+	/* Reason code */
+	__le32 reasoncode;
+} __packed;
+
+struct wmi_addba_setresponse_cmd {
+	/* unique id identifying the vdev, generated by the caller */
+	__le32 vdev_id;
+	/* peer mac address */
+	struct wmi_mac_addr peer_macaddr;
+	/* Tid number */
+	__le32 tid;
+	/* status code */
+	__le32 statuscode;
+} __packed;
+
+struct wmi_send_singleamsdu_cmd {
+	/* unique id identifying the vdev, generated by the caller */
+	__le32 vdev_id;
+	/* peer mac address */
+	struct wmi_mac_addr peer_macaddr;
+	/* Tid number */
+	__le32 tid;
+} __packed;
+
+enum wmi_peer_smps_state {
+	WMI_PEER_SMPS_PS_NONE = 0x0,
+	WMI_PEER_SMPS_STATIC  = 0x1,
+	WMI_PEER_SMPS_DYNAMIC = 0x2
+};
+
+enum wmi_peer_param {
+	WMI_PEER_SMPS_STATE = 0x1, /* see %wmi_peer_smps_state */
+	WMI_PEER_AMPDU      = 0x2,
+	WMI_PEER_AUTHORIZE  = 0x3,
+	WMI_PEER_CHAN_WIDTH = 0x4,
+	WMI_PEER_NSS        = 0x5,
+	WMI_PEER_USE_4ADDR  = 0x6
+};
+
+struct wmi_peer_set_param_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+	__le32 param_id;
+	__le32 param_value;
+} __packed;
+
+#define MAX_SUPPORTED_RATES 128
+
+struct wmi_rate_set {
+	/* total number of rates */
+	__le32 num_rates;
+	/*
+	 * rates (each 8bit value) packed into a 32 bit word.
+	 * the rates are filled from least significant byte to most
+	 * significant byte.
+	 */
+	__le32 rates[(MAX_SUPPORTED_RATES/4)+1];
+} __packed;
+
+struct wmi_rate_set_arg {
+	unsigned int num_rates;
+	u8 rates[MAX_SUPPORTED_RATES];
+};
+
+/*
+ * NOTE: It would bea good idea to represent the Tx MCS
+ * info in one word and Rx in another word. This is split
+ * into multiple words for convenience
+ */
+struct wmi_vht_rate_set {
+	__le32 rx_max_rate; /* Max Rx data rate */
+	__le32 rx_mcs_set;  /* Negotiated RX VHT rates */
+	__le32 tx_max_rate; /* Max Tx data rate */
+	__le32 tx_mcs_set;  /* Negotiated TX VHT rates */
+} __packed;
+
+struct wmi_vht_rate_set_arg {
+	u32 rx_max_rate;
+	u32 rx_mcs_set;
+	u32 tx_max_rate;
+	u32 tx_mcs_set;
+};
+
+struct wmi_peer_set_rates_cmd {
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* legacy rate set */
+	struct wmi_rate_set peer_legacy_rates;
+	/* ht rate set */
+	struct wmi_rate_set peer_ht_rates;
+} __packed;
+
+struct wmi_peer_set_q_empty_callback_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	__le32 callback_enable;
+} __packed;
+
+#define WMI_PEER_AUTH           0x00000001
+#define WMI_PEER_QOS            0x00000002
+#define WMI_PEER_NEED_PTK_4_WAY 0x00000004
+#define WMI_PEER_NEED_GTK_2_WAY 0x00000010
+#define WMI_PEER_APSD           0x00000800
+#define WMI_PEER_HT             0x00001000
+#define WMI_PEER_40MHZ          0x00002000
+#define WMI_PEER_STBC           0x00008000
+#define WMI_PEER_LDPC           0x00010000
+#define WMI_PEER_DYN_MIMOPS     0x00020000
+#define WMI_PEER_STATIC_MIMOPS  0x00040000
+#define WMI_PEER_SPATIAL_MUX    0x00200000
+#define WMI_PEER_VHT            0x02000000
+#define WMI_PEER_80MHZ          0x04000000
+#define WMI_PEER_PMF            0x08000000
+
+/*
+ * Peer rate capabilities.
+ *
+ * This is of interest to the ratecontrol
+ * module which resides in the firmware. The bit definitions are
+ * consistent with that defined in if_athrate.c.
+ */
+#define WMI_RC_DS_FLAG          0x01
+#define WMI_RC_CW40_FLAG        0x02
+#define WMI_RC_SGI_FLAG         0x04
+#define WMI_RC_HT_FLAG          0x08
+#define WMI_RC_RTSCTS_FLAG      0x10
+#define WMI_RC_TX_STBC_FLAG     0x20
+#define WMI_RC_RX_STBC_FLAG     0xC0
+#define WMI_RC_RX_STBC_FLAG_S   6
+#define WMI_RC_WEP_TKIP_FLAG    0x100
+#define WMI_RC_TS_FLAG          0x200
+#define WMI_RC_UAPSD_FLAG       0x400
+
+/* Maximum listen interval supported by hw in units of beacon interval */
+#define ATH10K_MAX_HW_LISTEN_INTERVAL 5
+
+struct wmi_peer_assoc_complete_cmd {
+	struct wmi_mac_addr peer_macaddr;
+	__le32 vdev_id;
+	__le32 peer_new_assoc; /* 1=assoc, 0=reassoc */
+	__le32 peer_associd; /* 16 LSBs */
+	__le32 peer_flags;
+	__le32 peer_caps; /* 16 LSBs */
+	__le32 peer_listen_intval;
+	__le32 peer_ht_caps;
+	__le32 peer_max_mpdu;
+	__le32 peer_mpdu_density; /* 0..16 */
+	__le32 peer_rate_caps;
+	struct wmi_rate_set peer_legacy_rates;
+	struct wmi_rate_set peer_ht_rates;
+	__le32 peer_nss; /* num of spatial streams */
+	__le32 peer_vht_caps;
+	__le32 peer_phymode;
+	struct wmi_vht_rate_set peer_vht_rates;
+	/* HT Operation Element of the peer. Five bytes packed in 2
+	 *  INT32 array and filled from lsb to msb. */
+	__le32 peer_ht_info[2];
+} __packed;
+
+struct wmi_peer_assoc_complete_arg {
+	u8 addr[ETH_ALEN];
+	u32 vdev_id;
+	bool peer_reassoc;
+	u16 peer_aid;
+	u32 peer_flags; /* see %WMI_PEER_ */
+	u16 peer_caps;
+	u32 peer_listen_intval;
+	u32 peer_ht_caps;
+	u32 peer_max_mpdu;
+	u32 peer_mpdu_density; /* 0..16 */
+	u32 peer_rate_caps; /* see %WMI_RC_ */
+	struct wmi_rate_set_arg peer_legacy_rates;
+	struct wmi_rate_set_arg peer_ht_rates;
+	u32 peer_num_spatial_streams;
+	u32 peer_vht_caps;
+	enum wmi_phy_mode peer_phymode;
+	struct wmi_vht_rate_set_arg peer_vht_rates;
+};
+
+struct wmi_peer_add_wds_entry_cmd {
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* wds MAC addr */
+	struct wmi_mac_addr wds_macaddr;
+} __packed;
+
+struct wmi_peer_remove_wds_entry_cmd {
+	/* wds MAC addr */
+	struct wmi_mac_addr wds_macaddr;
+} __packed;
+
+struct wmi_peer_q_empty_callback_event {
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+/*
+ * Channel info WMI event
+ */
+struct wmi_chan_info_event {
+	__le32 err_code;
+	__le32 freq;
+	__le32 cmd_flags;
+	__le32 noise_floor;
+	__le32 rx_clear_count;
+	__le32 cycle_count;
+} __packed;
+
+/* Beacon filter wmi command info */
+#define BCN_FLT_MAX_SUPPORTED_IES	256
+#define BCN_FLT_MAX_ELEMS_IE_LIST	(BCN_FLT_MAX_SUPPORTED_IES / 32)
+
+struct bss_bcn_stats {
+	__le32 vdev_id;
+	__le32 bss_bcnsdropped;
+	__le32 bss_bcnsdelivered;
+} __packed;
+
+struct bcn_filter_stats {
+	__le32 bcns_dropped;
+	__le32 bcns_delivered;
+	__le32 activefilters;
+	struct bss_bcn_stats bss_stats;
+} __packed;
+
+struct wmi_add_bcn_filter_cmd {
+	u32 vdev_id;
+	u32 ie_map[BCN_FLT_MAX_ELEMS_IE_LIST];
+} __packed;
+
+enum wmi_sta_keepalive_method {
+	WMI_STA_KEEPALIVE_METHOD_NULL_FRAME = 1,
+	WMI_STA_KEEPALIVE_METHOD_UNSOLICITATED_ARP_RESPONSE = 2,
+};
+
+/* note: ip4 addresses are in network byte order, i.e. big endian */
+struct wmi_sta_keepalive_arp_resp {
+	__be32 src_ip4_addr;
+	__be32 dest_ip4_addr;
+	struct wmi_mac_addr dest_mac_addr;
+} __packed;
+
+struct wmi_sta_keepalive_cmd {
+	__le32 vdev_id;
+	__le32 enabled;
+	__le32 method; /* WMI_STA_KEEPALIVE_METHOD_ */
+	__le32 interval; /* in seconds */
+	struct wmi_sta_keepalive_arp_resp arp_resp;
+} __packed;
+
+#define ATH10K_RTS_MAX		2347
+#define ATH10K_FRAGMT_THRESHOLD_MIN	540
+#define ATH10K_FRAGMT_THRESHOLD_MAX	2346
+
+#define WMI_MAX_EVENT 0x1000
+/* Maximum number of pending TXed WMI packets */
+#define WMI_MAX_PENDING_TX_COUNT 128
+#define WMI_SKB_HEADROOM sizeof(struct wmi_cmd_hdr)
+
+/* By default disable power save for IBSS */
+#define ATH10K_DEFAULT_ATIM 0
+
+struct ath10k;
+struct ath10k_vif;
+
+int ath10k_wmi_attach(struct ath10k *ar);
+void ath10k_wmi_detach(struct ath10k *ar);
+int ath10k_wmi_wait_for_service_ready(struct ath10k *ar);
+int ath10k_wmi_wait_for_unified_ready(struct ath10k *ar);
+void ath10k_wmi_flush_tx(struct ath10k *ar);
+
+int ath10k_wmi_connect_htc_service(struct ath10k *ar);
+int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
+				const struct wmi_channel_arg *);
+int ath10k_wmi_pdev_suspend_target(struct ath10k *ar);
+int ath10k_wmi_pdev_resume_target(struct ath10k *ar);
+int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
+				  u16 rd5g, u16 ctl2g, u16 ctl5g);
+int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
+			      u32 value);
+int ath10k_wmi_cmd_init(struct ath10k *ar);
+int ath10k_wmi_start_scan(struct ath10k *ar, const struct wmi_start_scan_arg *);
+void ath10k_wmi_start_scan_init(struct ath10k *ar, struct wmi_start_scan_arg *);
+int ath10k_wmi_stop_scan(struct ath10k *ar,
+			 const struct wmi_stop_scan_arg *arg);
+int ath10k_wmi_vdev_create(struct ath10k *ar, u32 vdev_id,
+			   enum wmi_vdev_type type,
+			   enum wmi_vdev_subtype subtype,
+			   const u8 macaddr[ETH_ALEN]);
+int ath10k_wmi_vdev_delete(struct ath10k *ar, u32 vdev_id);
+int ath10k_wmi_vdev_start(struct ath10k *ar,
+			  const struct wmi_vdev_start_request_arg *);
+int ath10k_wmi_vdev_restart(struct ath10k *ar,
+			    const struct wmi_vdev_start_request_arg *);
+int ath10k_wmi_vdev_stop(struct ath10k *ar, u32 vdev_id);
+int ath10k_wmi_vdev_up(struct ath10k *ar, u32 vdev_id, u32 aid,
+		       const u8 *bssid);
+int ath10k_wmi_vdev_down(struct ath10k *ar, u32 vdev_id);
+int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
+			      enum wmi_vdev_param param_id, u32 param_value);
+int ath10k_wmi_vdev_install_key(struct ath10k *ar,
+				const struct wmi_vdev_install_key_arg *arg);
+int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
+		    const u8 peer_addr[ETH_ALEN]);
+int ath10k_wmi_peer_delete(struct ath10k *ar, u32 vdev_id,
+		    const u8 peer_addr[ETH_ALEN]);
+int ath10k_wmi_peer_flush(struct ath10k *ar, u32 vdev_id,
+		   const u8 peer_addr[ETH_ALEN], u32 tid_bitmap);
+int ath10k_wmi_peer_set_param(struct ath10k *ar, u32 vdev_id,
+			      const u8 *peer_addr,
+			      enum wmi_peer_param param_id, u32 param_value);
+int ath10k_wmi_peer_assoc(struct ath10k *ar,
+			  const struct wmi_peer_assoc_complete_arg *arg);
+int ath10k_wmi_set_psmode(struct ath10k *ar, u32 vdev_id,
+			  enum wmi_sta_ps_mode psmode);
+int ath10k_wmi_set_sta_ps_param(struct ath10k *ar, u32 vdev_id,
+				enum wmi_sta_powersave_param param_id,
+				u32 value);
+int ath10k_wmi_set_ap_ps_param(struct ath10k *ar, u32 vdev_id, const u8 *mac,
+			       enum wmi_ap_ps_peer_param param_id, u32 value);
+int ath10k_wmi_scan_chan_list(struct ath10k *ar,
+			      const struct wmi_scan_chan_list_arg *arg);
+int ath10k_wmi_beacon_send(struct ath10k *ar, const struct wmi_bcn_tx_arg *arg);
+int ath10k_wmi_pdev_set_wmm_params(struct ath10k *ar,
+			const struct wmi_pdev_set_wmm_params_arg *arg);
+int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id);
+
+#endif /* _WMI_H_ */
-- 
cgit v0.10.2


From 80b4205bc1da3fdcb665f43d1a7fbbb202e9cd41 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 4 Jun 2013 15:41:30 +0530
Subject: ath9k: Fix OFDM weak signal detection for AP mode

The commit "ath9k_hw: improve ANI processing and rx desensitizing parameters"
changed the OFDM weak signal detection logic to disable it
for AP mode, which is not allowed. Fix this and enable it always
for AP mode.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index e91725b..3ec4c53 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -177,10 +177,15 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
 	    BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_HIGH)
 		weak_sig = true;
 
-	if (aniState->ofdmWeakSigDetect != weak_sig)
-			ath9k_hw_ani_control(ah,
-				ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
-				entry_ofdm->ofdm_weak_signal_on);
+	/*
+	 * OFDM Weak signal detection is always enabled for AP mode.
+	 */
+	if (ah->opmode != NL80211_IFTYPE_AP &&
+	    aniState->ofdmWeakSigDetect != weak_sig) {
+		ath9k_hw_ani_control(ah,
+				     ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
+				     entry_ofdm->ofdm_weak_signal_on);
+	}
 
 	if (aniState->ofdmNoiseImmunityLevel >= ATH9K_ANI_OFDM_DEF_LEVEL) {
 		ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
-- 
cgit v0.10.2


From a04eb985f18b7e0f3b071a29600ebc4741475ce9 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 4 Jun 2013 15:41:31 +0530
Subject: ath9k: Fix ANI monitoring

The commit "ath9k_hw: improve ANI processing and rx desensitizing parameters"
changed various ANI operational parameters to address a specific
card/environment. This is not really applicable for other cards
in general usage.

As per internal documentation, lowering the immunity level can be
done only after 5 periods have passed and the CCK/OFDM errors are
below the low watermak threshold - which have been fixed at 300 and
400 respectively by the sytems team.

Raising the immunity level can be done when CCK/OFDM errors exceed
600 and 1000 (per second).

Set these values once during attach.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index 3ec4c53..1520e55 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -186,14 +186,6 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
 				     ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
 				     entry_ofdm->ofdm_weak_signal_on);
 	}
-
-	if (aniState->ofdmNoiseImmunityLevel >= ATH9K_ANI_OFDM_DEF_LEVEL) {
-		ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
-		ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI;
-	} else {
-		ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI;
-		ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW;
-	}
 }
 
 static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hw *ah)
@@ -439,12 +431,25 @@ void ath9k_hw_ani_monitor(struct ath_hw *ah, struct ath9k_channel *chan)
 		ofdmPhyErrRate, aniState->cckNoiseImmunityLevel,
 		cckPhyErrRate, aniState->ofdmsTurn);
 
-	if (aniState->listenTime > ah->aniperiod) {
-		if (cckPhyErrRate < ah->config.cck_trig_low &&
-		    ofdmPhyErrRate < ah->config.ofdm_trig_low) {
+	if (aniState->listenTime > 5 * ah->aniperiod) {
+		/*
+		 * Check if we need to lower immunity if
+		 * 5 ani_periods have passed.
+		 */
+		if (ofdmPhyErrRate <= ah->config.ofdm_trig_low &&
+		    cckPhyErrRate <= ah->config.cck_trig_low) {
 			ath9k_hw_ani_lower_immunity(ah);
 			aniState->ofdmsTurn = !aniState->ofdmsTurn;
-		} else if (ofdmPhyErrRate > ah->config.ofdm_trig_high) {
+		}
+		ath9k_ani_restart(ah);
+	} else if (aniState->listenTime > ah->aniperiod) {
+		/*
+		 * Check if immunity has to be raised,
+		 * (either OFDM or CCK).
+		 */
+		if (ofdmPhyErrRate > ah->config.ofdm_trig_high &&
+		    (cckPhyErrRate <= ah->config.cck_trig_high ||
+		     aniState->ofdmsTurn)) {
 			ath9k_hw_ani_ofdm_err_trigger(ah);
 			aniState->ofdmsTurn = false;
 		} else if (cckPhyErrRate > ah->config.cck_trig_high) {
diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index 78b9fa9..1088472 100644
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -21,11 +21,9 @@
 
 /* units are errors per second */
 #define ATH9K_ANI_OFDM_TRIG_HIGH          3500
-#define ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI 1000
 
 /* units are errors per second */
 #define ATH9K_ANI_OFDM_TRIG_LOW           400
-#define ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI 900
 
 /* units are errors per second */
 #define ATH9K_ANI_CCK_TRIG_HIGH           600
-- 
cgit v0.10.2


From b99553fb60c1a1d3569993fdb5e21fb7214dbbf0 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 4 Jun 2013 15:41:32 +0530
Subject: ath9k: Fix ANI levels

The commit, "ath9k_hw: improve ANI processing and rx desensitizing parameters"
modified the immunity level tables for both CCK and OFDM. Fix them
so that the tables are in sync with the internal driver/codebase.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index 1520e55..c8595f4 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -46,8 +46,8 @@ static const struct ani_ofdm_level_entry ofdm_level_table[] = {
 	{  5,  4,  1  }, /* lvl 5 */
 	{  6,  5,  1  }, /* lvl 6 */
 	{  7,  6,  1  }, /* lvl 7 */
-	{  7,  6,  0  }, /* lvl 8 */
-	{  7,  7,  0  }  /* lvl 9 */
+	{  7,  7,  1  }, /* lvl 8 */
+	{  7,  8,  0  }  /* lvl 9 */
 };
 #define ATH9K_ANI_OFDM_NUM_LEVEL \
 	ARRAY_SIZE(ofdm_level_table)
@@ -91,8 +91,8 @@ static const struct ani_cck_level_entry cck_level_table[] = {
 	{  4,  0  }, /* lvl 4 */
 	{  5,  0  }, /* lvl 5 */
 	{  6,  0  }, /* lvl 6 */
-	{  6,  0  }, /* lvl 7 (only for high rssi) */
-	{  7,  0  }  /* lvl 8 (only for high rssi) */
+	{  7,  0  }, /* lvl 7 (only for high rssi) */
+	{  8,  0  }  /* lvl 8 (only for high rssi) */
 };
 
 #define ATH9K_ANI_CCK_NUM_LEVEL \
-- 
cgit v0.10.2


From ff23e0845b1ba33ec2ee25989758e2cf3df6d4c5 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 4 Jun 2013 15:41:33 +0530
Subject: ath9k: Fix ofdm weak signal configuration

The commit, "ath9k_hw: improve ANI processing and rx desensitizing parameters"
removed code setting various phy registers holding threshold values.

This is likely required for OFDM weak signal detection to function
correctly, so add them, but skip AR9462 and AR9565.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 83e0385..bc48312 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -906,6 +906,11 @@ static bool ar9003_hw_ani_control(struct ath_hw *ah,
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath9k_channel *chan = ah->curchan;
 	struct ar5416AniState *aniState = &ah->ani;
+	int m1ThreshLow, m2ThreshLow;
+	int m1Thresh, m2Thresh;
+	int m2CountThr, m2CountThrLow;
+	int m1ThreshLowExt, m2ThreshLowExt;
+	int m1ThreshExt, m2ThreshExt;
 	s32 value, value2;
 
 	switch (cmd & ah->ani_function) {
@@ -919,6 +924,61 @@ static bool ar9003_hw_ani_control(struct ath_hw *ah,
 		 */
 		u32 on = param ? 1 : 0;
 
+		if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
+			goto skip_ws_det;
+
+		m1ThreshLow = on ?
+			aniState->iniDef.m1ThreshLow : m1ThreshLow_off;
+		m2ThreshLow = on ?
+			aniState->iniDef.m2ThreshLow : m2ThreshLow_off;
+		m1Thresh = on ?
+			aniState->iniDef.m1Thresh : m1Thresh_off;
+		m2Thresh = on ?
+			aniState->iniDef.m2Thresh : m2Thresh_off;
+		m2CountThr = on ?
+			aniState->iniDef.m2CountThr : m2CountThr_off;
+		m2CountThrLow = on ?
+			aniState->iniDef.m2CountThrLow : m2CountThrLow_off;
+		m1ThreshLowExt = on ?
+			aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off;
+		m2ThreshLowExt = on ?
+			aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off;
+		m1ThreshExt = on ?
+			aniState->iniDef.m1ThreshExt : m1ThreshExt_off;
+		m2ThreshExt = on ?
+			aniState->iniDef.m2ThreshExt : m2ThreshExt_off;
+
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
+			      AR_PHY_SFCORR_LOW_M1_THRESH_LOW,
+			      m1ThreshLow);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
+			      AR_PHY_SFCORR_LOW_M2_THRESH_LOW,
+			      m2ThreshLow);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR,
+			      AR_PHY_SFCORR_M1_THRESH,
+			      m1Thresh);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR,
+			      AR_PHY_SFCORR_M2_THRESH,
+			      m2Thresh);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR,
+			      AR_PHY_SFCORR_M2COUNT_THR,
+			      m2CountThr);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
+			      AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW,
+			      m2CountThrLow);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+			      AR_PHY_SFCORR_EXT_M1_THRESH_LOW,
+			      m1ThreshLowExt);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+			      AR_PHY_SFCORR_EXT_M2_THRESH_LOW,
+			      m2ThreshLowExt);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+			      AR_PHY_SFCORR_EXT_M1_THRESH,
+			      m1ThreshExt);
+		REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
+			      AR_PHY_SFCORR_EXT_M2_THRESH,
+			      m2ThreshExt);
+skip_ws_det:
 		if (on)
 			REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
 				    AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
-- 
cgit v0.10.2


From 50a0f5bc3075b37ccaad97780d4b9238309fdf15 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 4 Jun 2013 15:41:34 +0530
Subject: ath9k: Remove redundant code

The phy error mask registers are programmed already
in ath9k_ani_restart(), so there is no need to set them
in ath9k_ani_reset().

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index c8595f4..a68beb1 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -360,18 +360,7 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
 	ath9k_hw_set_ofdm_nil(ah, ofdm_nil, is_scanning);
 	ath9k_hw_set_cck_nil(ah, cck_nil, is_scanning);
 
-	/*
-	 * enable phy counters if hw supports or if not, enable phy
-	 * interrupts (so we can count each one)
-	 */
 	ath9k_ani_restart(ah);
-
-	ENABLE_REGWRITE_BUFFER(ah);
-
-	REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING);
-	REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
-
-	REGWRITE_BUFFER_FLUSH(ah);
 }
 
 static bool ath9k_hw_ani_read_counters(struct ath_hw *ah)
-- 
cgit v0.10.2


From 057c1dd6cd5041e3b6a6fb65708ac5a4d9c12b36 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 4 Jun 2013 15:41:35 +0530
Subject: ath9k: Remove unused ANI macros

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index 1088472..b75aea2 100644
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -21,17 +21,10 @@
 
 /* units are errors per second */
 #define ATH9K_ANI_OFDM_TRIG_HIGH          3500
-
-/* units are errors per second */
 #define ATH9K_ANI_OFDM_TRIG_LOW           400
-
-/* units are errors per second */
 #define ATH9K_ANI_CCK_TRIG_HIGH           600
-
-/* units are errors per second */
 #define ATH9K_ANI_CCK_TRIG_LOW            300
 
-#define ATH9K_ANI_NOISE_IMMUNE_LVL        4
 #define ATH9K_ANI_SPUR_IMMUNE_LVL         3
 #define ATH9K_ANI_FIRSTEP_LVL             2
 
@@ -43,10 +36,6 @@
 /* in ms */
 #define ATH9K_ANI_POLLINTERVAL            1000
 
-#define HAL_NOISE_IMMUNE_MAX              4
-#define HAL_SPUR_IMMUNE_MAX               7
-#define HAL_FIRST_STEP_MAX                2
-
 #define ATH9K_SIG_FIRSTEP_SETTING_MIN     0
 #define ATH9K_SIG_FIRSTEP_SETTING_MAX     20
 #define ATH9K_SIG_SPUR_IMM_SETTING_MIN    0
-- 
cgit v0.10.2


From 568f7a438f6d5f0f0909c94e66b7c5c8b96ebf7a Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:38 +0200
Subject: rt2x00: rt2x00queue: add priv_size field to struct data_queue

Add a new field into struct data_queue and store
the size of the per-queue_entry private data in
that. Additionally, use the new field in the
rt2x00queue_alloc_entries function to compute
the size of the queue entries for a given queue.

The patch does not change the current behaviour
but makes it possible to remove the queue_desc
parameter of the rt2x00queue_alloc_entries function.
That will be done by a subsequent patch.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 5efbbbd..7f938a5 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -1173,7 +1173,7 @@ static int rt2x00queue_alloc_entries(struct data_queue *queue,
 	/*
 	 * Allocate all queue entries.
 	 */
-	entry_size = sizeof(*entries) + qdesc->priv_size;
+	entry_size = sizeof(*entries) + queue->priv_size;
 	entries = kcalloc(queue->limit, entry_size, GFP_KERNEL);
 	if (!entries)
 		return -ENOMEM;
@@ -1189,7 +1189,7 @@ static int rt2x00queue_alloc_entries(struct data_queue *queue,
 		entries[i].entry_idx = i;
 		entries[i].priv_data =
 		    QUEUE_ENTRY_PRIV_OFFSET(entries, i, queue->limit,
-					    sizeof(*entries), qdesc->priv_size);
+					    sizeof(*entries), queue->priv_size);
 	}
 
 #undef QUEUE_ENTRY_PRIV_OFFSET
@@ -1329,6 +1329,7 @@ static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
 	queue->data_size = qdesc->data_size;
 	queue->desc_size = qdesc->desc_size;
 	queue->winfo_size = qdesc->winfo_size;
+	queue->priv_size = qdesc->priv_size;
 }
 
 int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev)
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 4a7b34e..2cf4903 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -453,6 +453,7 @@ enum data_queue_flags {
  * @cw_max: The cw max value for outgoing frames (field ignored in RX queue).
  * @data_size: Maximum data size for the frames in this queue.
  * @desc_size: Hardware descriptor size for the data in this queue.
+ * @priv_size: Size of per-queue_entry private data.
  * @usb_endpoint: Device endpoint used for communication (USB only)
  * @usb_maxpacket: Max packet size for given endpoint (USB only)
  */
@@ -481,6 +482,7 @@ struct data_queue {
 	unsigned short data_size;
 	unsigned char  desc_size;
 	unsigned char  winfo_size;
+	unsigned short priv_size;
 
 	unsigned short usb_endpoint;
 	unsigned short usb_maxpacket;
-- 
cgit v0.10.2


From 15d6c07929a2efa8802b5cc9bb8c91bdf5ba219b Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:39 +0200
Subject: rt2x00: rt2x00queue: remove qdesc parameter of
 rt2x00queue_alloc_entries

The qdesc parameter is not used anymore, so remove that.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 7f938a5..c12d1c8 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -1161,8 +1161,7 @@ void rt2x00queue_init_queues(struct rt2x00_dev *rt2x00dev)
 	}
 }
 
-static int rt2x00queue_alloc_entries(struct data_queue *queue,
-				     const struct data_queue_desc *qdesc)
+static int rt2x00queue_alloc_entries(struct data_queue *queue)
 {
 	struct queue_entry *entries;
 	unsigned int entry_size;
@@ -1231,23 +1230,22 @@ int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev)
 	struct data_queue *queue;
 	int status;
 
-	status = rt2x00queue_alloc_entries(rt2x00dev->rx, rt2x00dev->ops->rx);
+	status = rt2x00queue_alloc_entries(rt2x00dev->rx);
 	if (status)
 		goto exit;
 
 	tx_queue_for_each(rt2x00dev, queue) {
-		status = rt2x00queue_alloc_entries(queue, rt2x00dev->ops->tx);
+		status = rt2x00queue_alloc_entries(queue);
 		if (status)
 			goto exit;
 	}
 
-	status = rt2x00queue_alloc_entries(rt2x00dev->bcn, rt2x00dev->ops->bcn);
+	status = rt2x00queue_alloc_entries(rt2x00dev->bcn);
 	if (status)
 		goto exit;
 
 	if (test_bit(REQUIRE_ATIM_QUEUE, &rt2x00dev->cap_flags)) {
-		status = rt2x00queue_alloc_entries(rt2x00dev->atim,
-						   rt2x00dev->ops->atim);
+		status = rt2x00queue_alloc_entries(rt2x00dev->atim);
 		if (status)
 			goto exit;
 	}
-- 
cgit v0.10.2


From 56e8256351c358d7a2003f6fe10dcb5e2bc394f7 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:40 +0200
Subject: rt2x00: rt2x00dev: use rt2x00dev->bcn->limit

The beacon data queue is initialized already,
so fetch the number of the queue entries from
that instead of using the entry_num field of
the data queue descriptor.

The two values are the same, and the use of the
rt2x00dev->bcn->limit value allows us to get rid
of a superfluous pointer dereference.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 6a20172..dff5012 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1336,7 +1336,7 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
 	 * beacon entries.
 	 */
 	rt2x00dev->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
-	if (rt2x00dev->ops->bcn->entry_num > 0)
+	if (rt2x00dev->bcn->limit > 0)
 		rt2x00dev->hw->wiphy->interface_modes |=
 		    BIT(NL80211_IFTYPE_ADHOC) |
 		    BIT(NL80211_IFTYPE_AP) |
-- 
cgit v0.10.2


From 04453e9bda9da510e79c66f56ab463215d042aa8 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:41 +0200
Subject: rt2x00: rt2x00queue: setup queue->threshold from queue->limit

Use the queue->limit value instead of the
qdesc->entry_num to compute the threshold.
The two source values are the same and the
data queue descriptor structure will be
removed by a later patch.

Also separate the computation from the rest
of the init code to make further changes
easier.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index c12d1c8..3ae2264 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -1323,11 +1323,12 @@ static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
 	BUG_ON(!qdesc);
 
 	queue->limit = qdesc->entry_num;
-	queue->threshold = DIV_ROUND_UP(qdesc->entry_num, 10);
 	queue->data_size = qdesc->data_size;
 	queue->desc_size = qdesc->desc_size;
 	queue->winfo_size = qdesc->winfo_size;
 	queue->priv_size = qdesc->priv_size;
+
+	queue->threshold = DIV_ROUND_UP(queue->limit, 10);
 }
 
 int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev)
-- 
cgit v0.10.2


From 25bf6ce41d2692db2e991447015fb4bfbf3c3982 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:42 +0200
Subject: rt2x00: add queue_init callback to rt2x00_ops

The driver uses static data structures for initializing
specific fields of a given data queue. These static
queue data descriptor structures are containing values
which related to a given chipset.

Even though the values are chip specific, the actual
selection of the used structure is based on device
specific vendor/product identifiers. This approach works,
but it is not always reliable. Sometimes the vendor and/or
device IDs of the PCI and USB devices contains improper
values which makes it impossible to select the correct
structure for such devices.

The patch adds a new callback to tr2x00_ops which
is called after the chipset detection is finished.
This allows the drivers to do dynamic initialization
of the data_queue structure for a given queue based
on the actual chipset.

After each driver implements the queue_init callback,
the data_queue_desc structure will be removed.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 7510723..2d2db64 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -653,6 +653,7 @@ struct rt2x00_ops {
 	const struct data_queue_desc *tx;
 	const struct data_queue_desc *bcn;
 	const struct data_queue_desc *atim;
+	void (*queue_init)(struct data_queue *queue);
 	const struct rt2x00lib_ops *lib;
 	const void *drv;
 	const struct ieee80211_ops *hw;
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 3ae2264..2a99ff1 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -1306,8 +1306,6 @@ rt2x00queue_get_qdesc_by_qid(struct rt2x00_dev *rt2x00dev,
 static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
 			     struct data_queue *queue, enum data_queue_qid qid)
 {
-	const struct data_queue_desc *qdesc;
-
 	mutex_init(&queue->status_lock);
 	spin_lock_init(&queue->tx_lock);
 	spin_lock_init(&queue->index_lock);
@@ -1319,14 +1317,20 @@ static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
 	queue->cw_min = 5;
 	queue->cw_max = 10;
 
-	qdesc = rt2x00queue_get_qdesc_by_qid(rt2x00dev, qid);
-	BUG_ON(!qdesc);
+	if (rt2x00dev->ops->queue_init) {
+		rt2x00dev->ops->queue_init(queue);
+	} else {
+		const struct data_queue_desc *qdesc;
+
+		qdesc = rt2x00queue_get_qdesc_by_qid(rt2x00dev, qid);
+		BUG_ON(!qdesc);
 
-	queue->limit = qdesc->entry_num;
-	queue->data_size = qdesc->data_size;
-	queue->desc_size = qdesc->desc_size;
-	queue->winfo_size = qdesc->winfo_size;
-	queue->priv_size = qdesc->priv_size;
+		queue->limit = qdesc->entry_num;
+		queue->data_size = qdesc->data_size;
+		queue->desc_size = qdesc->desc_size;
+		queue->winfo_size = qdesc->winfo_size;
+		queue->priv_size = qdesc->priv_size;
+	}
 
 	queue->threshold = DIV_ROUND_UP(queue->limit, 10);
 }
-- 
cgit v0.10.2


From d36d13a3ec1ef25c411d39c1e14dd2cdff98edbb Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:43 +0200
Subject: rt2x00: rt2800usb: implement queue_init callback

The generic rt2x00 code has been changed to allow the
drivers toimplement dynamic data_queue initialization.

Remove the static data queue descriptor structures
and implement the queue_init callback instead.

The actual chipset is already known when the callback
is used. This allows us to use a single callback for
all supported devices.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index c71a48d..b81d509 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -849,29 +849,54 @@ static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
 	.sta_remove		= rt2800_sta_remove,
 };
 
-static const struct data_queue_desc rt2800usb_queue_rx = {
-	.entry_num		= 128,
-	.data_size		= AGGREGATION_SIZE,
-	.desc_size		= RXINFO_DESC_SIZE,
-	.winfo_size		= RXWI_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+static void rt2800usb_queue_init(struct data_queue *queue)
+{
+	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
+	unsigned short txwi_size, rxwi_size;
 
-static const struct data_queue_desc rt2800usb_queue_tx = {
-	.entry_num		= 16,
-	.data_size		= AGGREGATION_SIZE,
-	.desc_size		= TXINFO_DESC_SIZE,
-	.winfo_size		= TXWI_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+	if (rt2x00_rt(rt2x00dev, RT5592)) {
+		txwi_size = TXWI_DESC_SIZE_5592;
+		rxwi_size = RXWI_DESC_SIZE_5592;
+	} else {
+		txwi_size = TXWI_DESC_SIZE;
+		rxwi_size = RXWI_DESC_SIZE;
+	}
 
-static const struct data_queue_desc rt2800usb_queue_bcn = {
-	.entry_num		= 8,
-	.data_size		= MGMT_FRAME_SIZE,
-	.desc_size		= TXINFO_DESC_SIZE,
-	.winfo_size		= TXWI_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+	switch (queue->qid) {
+	case QID_RX:
+		queue->limit = 128;
+		queue->data_size = AGGREGATION_SIZE;
+		queue->desc_size = RXINFO_DESC_SIZE;
+		queue->winfo_size = rxwi_size;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
+
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		queue->limit = 16;
+		queue->data_size = AGGREGATION_SIZE;
+		queue->desc_size = TXINFO_DESC_SIZE;
+		queue->winfo_size = txwi_size;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
+
+	case QID_BEACON:
+		queue->limit = 8;
+		queue->data_size = MGMT_FRAME_SIZE;
+		queue->desc_size = TXINFO_DESC_SIZE;
+		queue->winfo_size = txwi_size;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
+
+	case QID_ATIM:
+		/* fallthrough */
+	default:
+		BUG();
+		break;
+	}
+}
 
 static const struct rt2x00_ops rt2800usb_ops = {
 	.name			= KBUILD_MODNAME,
@@ -881,9 +906,7 @@ static const struct rt2x00_ops rt2800usb_ops = {
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
 	.extra_tx_headroom	= TXINFO_DESC_SIZE + TXWI_DESC_SIZE,
-	.rx			= &rt2800usb_queue_rx,
-	.tx			= &rt2800usb_queue_tx,
-	.bcn			= &rt2800usb_queue_bcn,
+	.queue_init		= rt2800usb_queue_init,
 	.lib			= &rt2800usb_rt2x00_ops,
 	.drv			= &rt2800usb_rt2800_ops,
 	.hw			= &rt2800usb_mac80211_ops,
@@ -892,31 +915,6 @@ static const struct rt2x00_ops rt2800usb_ops = {
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 };
 
-static const struct data_queue_desc rt2800usb_queue_rx_5592 = {
-	.entry_num		= 128,
-	.data_size		= AGGREGATION_SIZE,
-	.desc_size		= RXINFO_DESC_SIZE,
-	.winfo_size		= RXWI_DESC_SIZE_5592,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
-
-static const struct data_queue_desc rt2800usb_queue_tx_5592 = {
-	.entry_num		= 16,
-	.data_size		= AGGREGATION_SIZE,
-	.desc_size		= TXINFO_DESC_SIZE,
-	.winfo_size		= TXWI_DESC_SIZE_5592,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
-
-static const struct data_queue_desc rt2800usb_queue_bcn_5592 = {
-	.entry_num		= 8,
-	.data_size		= MGMT_FRAME_SIZE,
-	.desc_size		= TXINFO_DESC_SIZE,
-	.winfo_size		= TXWI_DESC_SIZE_5592,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
-
-
 static const struct rt2x00_ops rt2800usb_ops_5592 = {
 	.name			= KBUILD_MODNAME,
 	.drv_data_size		= sizeof(struct rt2800_drv_data),
@@ -925,9 +923,7 @@ static const struct rt2x00_ops rt2800usb_ops_5592 = {
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
 	.extra_tx_headroom	= TXINFO_DESC_SIZE + TXWI_DESC_SIZE_5592,
-	.rx			= &rt2800usb_queue_rx_5592,
-	.tx			= &rt2800usb_queue_tx_5592,
-	.bcn			= &rt2800usb_queue_bcn_5592,
+	.queue_init		= rt2800usb_queue_init,
 	.lib			= &rt2800usb_rt2x00_ops,
 	.drv			= &rt2800usb_rt2800_ops,
 	.hw			= &rt2800usb_mac80211_ops,
-- 
cgit v0.10.2


From 1896b760c3024e90db3b3577bf0ed31c008a3543 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:44 +0200
Subject: rt2x00: rt2800pci: implement queue_init callback

The generic rt2x00 code has been changed to allow the
drivers toimplement dynamic data_queue initialization.

Remove the static data queue descriptor structures
and implement the queue_init callback instead.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 330f1d2..260c8b4 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -1186,29 +1186,43 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
 	.sta_remove		= rt2800_sta_remove,
 };
 
-static const struct data_queue_desc rt2800pci_queue_rx = {
-	.entry_num		= 128,
-	.data_size		= AGGREGATION_SIZE,
-	.desc_size		= RXD_DESC_SIZE,
-	.winfo_size		= RXWI_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+static void rt2800pci_queue_init(struct data_queue *queue)
+{
+	switch (queue->qid) {
+	case QID_RX:
+		queue->limit = 128;
+		queue->data_size = AGGREGATION_SIZE;
+		queue->desc_size = RXD_DESC_SIZE;
+		queue->winfo_size = RXWI_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt2800pci_queue_tx = {
-	.entry_num		= 64,
-	.data_size		= AGGREGATION_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.winfo_size		= TXWI_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		queue->limit = 64;
+		queue->data_size = AGGREGATION_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->winfo_size = TXWI_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt2800pci_queue_bcn = {
-	.entry_num		= 8,
-	.data_size		= 0, /* No DMA required for beacons */
-	.desc_size		= TXD_DESC_SIZE,
-	.winfo_size		= TXWI_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_BEACON:
+		queue->limit = 8;
+		queue->data_size = 0; /* No DMA required for beacons */
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->winfo_size = TXWI_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
+
+	case QID_ATIM:
+		/* fallthrough */
+	default:
+		BUG();
+		break;
+	}
+}
 
 static const struct rt2x00_ops rt2800pci_ops = {
 	.name			= KBUILD_MODNAME,
@@ -1218,9 +1232,7 @@ static const struct rt2x00_ops rt2800pci_ops = {
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
 	.extra_tx_headroom	= TXWI_DESC_SIZE,
-	.rx			= &rt2800pci_queue_rx,
-	.tx			= &rt2800pci_queue_tx,
-	.bcn			= &rt2800pci_queue_bcn,
+	.queue_init		= rt2800pci_queue_init,
 	.lib			= &rt2800pci_rt2x00_ops,
 	.drv			= &rt2800pci_rt2800_ops,
 	.hw			= &rt2800pci_mac80211_ops,
-- 
cgit v0.10.2


From 0d7aada3bcbc0bde68379831d29c1a015f2fd613 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:45 +0200
Subject: rt2x00: rt73usb: implement queue_init callback

The generic rt2x00 code has been changed to allow the
drivers toimplement dynamic data_queue initialization.

Remove the static data queue descriptor structures
and implement the queue_init callback instead.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 377e09b..b2e346a 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -2359,26 +2359,40 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
 	.config			= rt73usb_config,
 };
 
-static const struct data_queue_desc rt73usb_queue_rx = {
-	.entry_num		= 32,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= RXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+static void rt73usb_queue_init(struct data_queue *queue)
+{
+	switch (queue->qid) {
+	case QID_RX:
+		queue->limit = 32;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = RXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
 
-static const struct data_queue_desc rt73usb_queue_tx = {
-	.entry_num		= 32,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		queue->limit = 32;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
 
-static const struct data_queue_desc rt73usb_queue_bcn = {
-	.entry_num		= 4,
-	.data_size		= MGMT_FRAME_SIZE,
-	.desc_size		= TXINFO_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+	case QID_BEACON:
+		queue->limit = 4;
+		queue->data_size = MGMT_FRAME_SIZE;
+		queue->desc_size = TXINFO_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
+
+	case QID_ATIM:
+		/* fallthrough */
+	default:
+		BUG();
+		break;
+	}
+}
 
 static const struct rt2x00_ops rt73usb_ops = {
 	.name			= KBUILD_MODNAME,
@@ -2387,9 +2401,7 @@ static const struct rt2x00_ops rt73usb_ops = {
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
 	.extra_tx_headroom	= TXD_DESC_SIZE,
-	.rx			= &rt73usb_queue_rx,
-	.tx			= &rt73usb_queue_tx,
-	.bcn			= &rt73usb_queue_bcn,
+	.queue_init		= rt73usb_queue_init,
 	.lib			= &rt73usb_rt2x00_ops,
 	.hw			= &rt73usb_mac80211_ops,
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
-- 
cgit v0.10.2


From 3d8979ba7d873cd203bf98a17a2143a20eef488c Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:46 +0200
Subject: rt2x00: rt2400pci: implement queue_init callback

The generic rt2x00 code has been changed to allow the
drivers toimplement dynamic data_queue initialization.

Remove the static data queue descriptor structures
and implement the queue_init callback instead.

Compile tested only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index f714373..e1ec9a4 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1767,33 +1767,45 @@ static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
 	.config			= rt2400pci_config,
 };
 
-static const struct data_queue_desc rt2400pci_queue_rx = {
-	.entry_num		= 24,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= RXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+static void rt2400pci_queue_init(struct data_queue *queue)
+{
+	switch (queue->qid) {
+	case QID_RX:
+		queue->limit = 24;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = RXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt2400pci_queue_tx = {
-	.entry_num		= 24,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		queue->limit = 24;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt2400pci_queue_bcn = {
-	.entry_num		= 1,
-	.data_size		= MGMT_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_BEACON:
+		queue->limit = 1;
+		queue->data_size = MGMT_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt2400pci_queue_atim = {
-	.entry_num		= 8,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_ATIM:
+		queue->limit = 8;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
+
+	default:
+		BUG();
+		break;
+	}
+}
 
 static const struct rt2x00_ops rt2400pci_ops = {
 	.name			= KBUILD_MODNAME,
@@ -1802,10 +1814,7 @@ static const struct rt2x00_ops rt2400pci_ops = {
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
 	.extra_tx_headroom	= 0,
-	.rx			= &rt2400pci_queue_rx,
-	.tx			= &rt2400pci_queue_tx,
-	.bcn			= &rt2400pci_queue_bcn,
-	.atim			= &rt2400pci_queue_atim,
+	.queue_init		= rt2400pci_queue_init,
 	.lib			= &rt2400pci_rt2x00_ops,
 	.hw			= &rt2400pci_mac80211_ops,
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
-- 
cgit v0.10.2


From 7c030821ede91bca94b425d27afd504842bb1865 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:47 +0200
Subject: rt2x00: rt2500pci: implement queue_init callback

The generic rt2x00 code has been changed to allow the
drivers toimplement dynamic data_queue initialization.

Remove the static data queue descriptor structures
and implement the queue_init callback instead.

Compile tested only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 77e45b2..a1670e8 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -2056,33 +2056,45 @@ static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
 	.config			= rt2500pci_config,
 };
 
-static const struct data_queue_desc rt2500pci_queue_rx = {
-	.entry_num		= 32,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= RXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+static void rt2500pci_queue_init(struct data_queue *queue)
+{
+	switch (queue->qid) {
+	case QID_RX:
+		queue->limit = 32;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = RXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt2500pci_queue_tx = {
-	.entry_num		= 32,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		queue->limit = 32;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt2500pci_queue_bcn = {
-	.entry_num		= 1,
-	.data_size		= MGMT_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_BEACON:
+		queue->limit = 1;
+		queue->data_size = MGMT_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt2500pci_queue_atim = {
-	.entry_num		= 8,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_ATIM:
+		queue->limit = 8;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
+
+	default:
+		BUG();
+		break;
+	}
+}
 
 static const struct rt2x00_ops rt2500pci_ops = {
 	.name			= KBUILD_MODNAME,
@@ -2091,10 +2103,7 @@ static const struct rt2x00_ops rt2500pci_ops = {
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
 	.extra_tx_headroom	= 0,
-	.rx			= &rt2500pci_queue_rx,
-	.tx			= &rt2500pci_queue_tx,
-	.bcn			= &rt2500pci_queue_bcn,
-	.atim			= &rt2500pci_queue_atim,
+	.queue_init		= rt2500pci_queue_init,
 	.lib			= &rt2500pci_rt2x00_ops,
 	.hw			= &rt2500pci_mac80211_ops,
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
-- 
cgit v0.10.2


From 7106d97bc475b2c0f2a134f804b245bf5eaebffc Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:48 +0200
Subject: rt2x00: rt61pci: implement queue_init callback

The generic rt2x00 code has been changed to allow the
drivers toimplement dynamic data_queue initialization.

Remove the static data queue descriptor structures
and implement the queue_init callback instead.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Tested-by: Jakub Kicinski <kubakici@wp.pl>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 7e1759b..17507d1 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -3025,26 +3025,40 @@ static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
 	.config			= rt61pci_config,
 };
 
-static const struct data_queue_desc rt61pci_queue_rx = {
-	.entry_num		= 32,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= RXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+static void rt61pci_queue_init(struct data_queue *queue)
+{
+	switch (queue->qid) {
+	case QID_RX:
+		queue->limit = 32;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = RXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt61pci_queue_tx = {
-	.entry_num		= 32,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		queue->limit = 32;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
 
-static const struct data_queue_desc rt61pci_queue_bcn = {
-	.entry_num		= 4,
-	.data_size		= 0, /* No DMA required for beacons */
-	.desc_size		= TXINFO_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_mmio),
-};
+	case QID_BEACON:
+		queue->limit = 4;
+		queue->data_size = 0; /* No DMA required for beacons */
+		queue->desc_size = TXINFO_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
+
+	case QID_ATIM:
+		/* fallthrough */
+	default:
+		BUG();
+		break;
+	}
+}
 
 static const struct rt2x00_ops rt61pci_ops = {
 	.name			= KBUILD_MODNAME,
@@ -3053,9 +3067,7 @@ static const struct rt2x00_ops rt61pci_ops = {
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
 	.extra_tx_headroom	= 0,
-	.rx			= &rt61pci_queue_rx,
-	.tx			= &rt61pci_queue_tx,
-	.bcn			= &rt61pci_queue_bcn,
+	.queue_init		= rt61pci_queue_init,
 	.lib			= &rt61pci_rt2x00_ops,
 	.hw			= &rt61pci_mac80211_ops,
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
-- 
cgit v0.10.2


From c29a32c8f15c81470d16aee82f52432eb477aa9b Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:49 +0200
Subject: rt2x00: rt2500usb: implement queue_init callback

The generic rt2x00 code has been changed to allow the
drivers toimplement dynamic data_queue initialization.

Remove the static data queue descriptor structures
and implement the queue_init callback instead.

Compile tested only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index a7f7b36..e5e5479 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1867,33 +1867,45 @@ static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {
 	.config			= rt2500usb_config,
 };
 
-static const struct data_queue_desc rt2500usb_queue_rx = {
-	.entry_num		= 32,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= RXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+static void rt2500usb_queue_init(struct data_queue *queue)
+{
+	switch (queue->qid) {
+	case QID_RX:
+		queue->limit = 32;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = RXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
 
-static const struct data_queue_desc rt2500usb_queue_tx = {
-	.entry_num		= 32,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		queue->limit = 32;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
 
-static const struct data_queue_desc rt2500usb_queue_bcn = {
-	.entry_num		= 1,
-	.data_size		= MGMT_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb_bcn),
-};
+	case QID_BEACON:
+		queue->limit = 1;
+		queue->data_size = MGMT_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb_bcn);
+		break;
 
-static const struct data_queue_desc rt2500usb_queue_atim = {
-	.entry_num		= 8,
-	.data_size		= DATA_FRAME_SIZE,
-	.desc_size		= TXD_DESC_SIZE,
-	.priv_size		= sizeof(struct queue_entry_priv_usb),
-};
+	case QID_ATIM:
+		queue->limit = 8;
+		queue->data_size = DATA_FRAME_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->priv_size = sizeof(struct queue_entry_priv_usb);
+		break;
+
+	default:
+		BUG();
+		break;
+	}
+}
 
 static const struct rt2x00_ops rt2500usb_ops = {
 	.name			= KBUILD_MODNAME,
@@ -1902,10 +1914,7 @@ static const struct rt2x00_ops rt2500usb_ops = {
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
 	.extra_tx_headroom	= TXD_DESC_SIZE,
-	.rx			= &rt2500usb_queue_rx,
-	.tx			= &rt2500usb_queue_tx,
-	.bcn			= &rt2500usb_queue_bcn,
-	.atim			= &rt2500usb_queue_atim,
+	.queue_init		= rt2500usb_queue_init,
 	.lib			= &rt2500usb_rt2x00_ops,
 	.hw			= &rt2500usb_mac80211_ops,
 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
-- 
cgit v0.10.2


From 705802bf56b1b7a64e543805ba196a6e1fb80ec6 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 4 Jun 2013 13:40:50 +0200
Subject: rt2x00: remove data_queue_desc struct

If the queue_init callback is implemented
by a driver it gets used instead of the
data_queue_desc based initialization.

The queue_init callback is implemented for
each drivers now, so the old initialization
method is not used anymore. Remove the unused
data_queue_desc structure and all of the
related code.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 2d2db64..2a17f7e 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -649,10 +649,6 @@ struct rt2x00_ops {
 	const unsigned int rf_size;
 	const unsigned int tx_queues;
 	const unsigned int extra_tx_headroom;
-	const struct data_queue_desc *rx;
-	const struct data_queue_desc *tx;
-	const struct data_queue_desc *bcn;
-	const struct data_queue_desc *atim;
 	void (*queue_init)(struct data_queue *queue);
 	const struct rt2x00lib_ops *lib;
 	const void *drv;
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 2a99ff1..c4f1e2b 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -1276,33 +1276,6 @@ void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev)
 	}
 }
 
-static const struct data_queue_desc *
-rt2x00queue_get_qdesc_by_qid(struct rt2x00_dev *rt2x00dev,
-			     enum data_queue_qid qid)
-{
-	switch (qid) {
-	case QID_RX:
-		return rt2x00dev->ops->rx;
-
-	case QID_AC_BE:
-	case QID_AC_BK:
-	case QID_AC_VO:
-	case QID_AC_VI:
-		return rt2x00dev->ops->tx;
-
-	case QID_BEACON:
-		return rt2x00dev->ops->bcn;
-
-	case QID_ATIM:
-		return rt2x00dev->ops->atim;
-
-	default:
-		break;
-	}
-
-	return NULL;
-}
-
 static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
 			     struct data_queue *queue, enum data_queue_qid qid)
 {
@@ -1317,20 +1290,7 @@ static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
 	queue->cw_min = 5;
 	queue->cw_max = 10;
 
-	if (rt2x00dev->ops->queue_init) {
-		rt2x00dev->ops->queue_init(queue);
-	} else {
-		const struct data_queue_desc *qdesc;
-
-		qdesc = rt2x00queue_get_qdesc_by_qid(rt2x00dev, qid);
-		BUG_ON(!qdesc);
-
-		queue->limit = qdesc->entry_num;
-		queue->data_size = qdesc->data_size;
-		queue->desc_size = qdesc->desc_size;
-		queue->winfo_size = qdesc->winfo_size;
-		queue->priv_size = qdesc->priv_size;
-	}
+	rt2x00dev->ops->queue_init(queue);
 
 	queue->threshold = DIV_ROUND_UP(queue->limit, 10);
 }
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 2cf4903..ebe1172 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -489,25 +489,6 @@ struct data_queue {
 };
 
 /**
- * struct data_queue_desc: Data queue description
- *
- * The information in this structure is used by drivers
- * to inform rt2x00lib about the creation of the data queue.
- *
- * @entry_num: Maximum number of entries for a queue.
- * @data_size: Maximum data size for the frames in this queue.
- * @desc_size: Hardware descriptor size for the data in this queue.
- * @priv_size: Size of per-queue_entry private data.
- */
-struct data_queue_desc {
-	unsigned short entry_num;
-	unsigned short data_size;
-	unsigned char  desc_size;
-	unsigned char  winfo_size;
-	unsigned short priv_size;
-};
-
-/**
  * queue_end - Return pointer to the last queue (HELPER MACRO).
  * @__dev: Pointer to &struct rt2x00_dev
  *
-- 
cgit v0.10.2


From df8100836e05b457af7b1627c601afe82e1d3ebe Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 4 Jun 2013 16:19:56 -0700
Subject: mwifiex: fix regression issue for usb interface

PATCH "mwifiex: scan delay timer cleanup in unload path" adds code
to cancel scan delay timer in unload path. It causes a regression
for USB interface.

USB8797 card gets enumerated twice. First enumeration is for
firmware download and second enumeration expects firmware
initialization.

It was observed that we are trying del_timer_sync() without setting
up the timer when remove handler is called after first enumeration.

This patch moves setup_timer() call to appropriate place so that
timer is setup for both the enumerations.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index c7f11c0..2fe31dc 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -52,84 +52,6 @@ static int mwifiex_add_bss_prio_tbl(struct mwifiex_private *priv)
 	return 0;
 }
 
-static void scan_delay_timer_fn(unsigned long data)
-{
-	struct mwifiex_private *priv = (struct mwifiex_private *)data;
-	struct mwifiex_adapter *adapter = priv->adapter;
-	struct cmd_ctrl_node *cmd_node, *tmp_node;
-	unsigned long flags;
-
-	if (adapter->surprise_removed)
-		return;
-
-	if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT) {
-		/*
-		 * Abort scan operation by cancelling all pending scan
-		 * commands
-		 */
-		spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
-		list_for_each_entry_safe(cmd_node, tmp_node,
-					 &adapter->scan_pending_q, list) {
-			list_del(&cmd_node->list);
-			mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
-		}
-		spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
-
-		spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
-		adapter->scan_processing = false;
-		adapter->scan_delay_cnt = 0;
-		adapter->empty_tx_q_cnt = 0;
-		spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
-
-		if (priv->scan_request) {
-			dev_dbg(adapter->dev, "info: aborting scan\n");
-			cfg80211_scan_done(priv->scan_request, 1);
-			priv->scan_request = NULL;
-		} else {
-			priv->scan_aborting = false;
-			dev_dbg(adapter->dev, "info: scan already aborted\n");
-		}
-		goto done;
-	}
-
-	if (!atomic_read(&priv->adapter->is_tx_received)) {
-		adapter->empty_tx_q_cnt++;
-		if (adapter->empty_tx_q_cnt == MWIFIEX_MAX_EMPTY_TX_Q_CNT) {
-			/*
-			 * No Tx traffic for 200msec. Get scan command from
-			 * scan pending queue and put to cmd pending queue to
-			 * resume scan operation
-			 */
-			adapter->scan_delay_cnt = 0;
-			adapter->empty_tx_q_cnt = 0;
-			spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
-			cmd_node = list_first_entry(&adapter->scan_pending_q,
-						    struct cmd_ctrl_node, list);
-			list_del(&cmd_node->list);
-			spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
-					       flags);
-
-			mwifiex_insert_cmd_to_pending_q(adapter, cmd_node,
-							true);
-			queue_work(adapter->workqueue, &adapter->main_work);
-			goto done;
-		}
-	} else {
-		adapter->empty_tx_q_cnt = 0;
-	}
-
-	/* Delay scan operation further by 20msec */
-	mod_timer(&priv->scan_delay_timer, jiffies +
-		  msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC));
-	adapter->scan_delay_cnt++;
-
-done:
-	if (atomic_read(&priv->adapter->is_tx_received))
-		atomic_set(&priv->adapter->is_tx_received, false);
-
-	return;
-}
-
 /*
  * This function initializes the private structure and sets default
  * values to the members.
@@ -211,9 +133,6 @@ int mwifiex_init_priv(struct mwifiex_private *priv)
 
 	priv->scan_block = false;
 
-	setup_timer(&priv->scan_delay_timer, scan_delay_timer_fn,
-		    (unsigned long)priv);
-
 	return mwifiex_add_bss_prio_tbl(priv);
 }
 
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 5bc7ef8..4858719 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -28,6 +28,84 @@ const char driver_version[] = "mwifiex " VERSION " (%s) ";
 static char *cal_data_cfg;
 module_param(cal_data_cfg, charp, 0);
 
+static void scan_delay_timer_fn(unsigned long data)
+{
+	struct mwifiex_private *priv = (struct mwifiex_private *)data;
+	struct mwifiex_adapter *adapter = priv->adapter;
+	struct cmd_ctrl_node *cmd_node, *tmp_node;
+	unsigned long flags;
+
+	if (adapter->surprise_removed)
+		return;
+
+	if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT) {
+		/*
+		 * Abort scan operation by cancelling all pending scan
+		 * commands
+		 */
+		spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
+		list_for_each_entry_safe(cmd_node, tmp_node,
+					 &adapter->scan_pending_q, list) {
+			list_del(&cmd_node->list);
+			mwifiex_insert_cmd_to_free_q(adapter, cmd_node);
+		}
+		spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags);
+
+		spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags);
+		adapter->scan_processing = false;
+		adapter->scan_delay_cnt = 0;
+		adapter->empty_tx_q_cnt = 0;
+		spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags);
+
+		if (priv->scan_request) {
+			dev_dbg(adapter->dev, "info: aborting scan\n");
+			cfg80211_scan_done(priv->scan_request, 1);
+			priv->scan_request = NULL;
+		} else {
+			priv->scan_aborting = false;
+			dev_dbg(adapter->dev, "info: scan already aborted\n");
+		}
+		goto done;
+	}
+
+	if (!atomic_read(&priv->adapter->is_tx_received)) {
+		adapter->empty_tx_q_cnt++;
+		if (adapter->empty_tx_q_cnt == MWIFIEX_MAX_EMPTY_TX_Q_CNT) {
+			/*
+			 * No Tx traffic for 200msec. Get scan command from
+			 * scan pending queue and put to cmd pending queue to
+			 * resume scan operation
+			 */
+			adapter->scan_delay_cnt = 0;
+			adapter->empty_tx_q_cnt = 0;
+			spin_lock_irqsave(&adapter->scan_pending_q_lock, flags);
+			cmd_node = list_first_entry(&adapter->scan_pending_q,
+						    struct cmd_ctrl_node, list);
+			list_del(&cmd_node->list);
+			spin_unlock_irqrestore(&adapter->scan_pending_q_lock,
+					       flags);
+
+			mwifiex_insert_cmd_to_pending_q(adapter, cmd_node,
+							true);
+			queue_work(adapter->workqueue, &adapter->main_work);
+			goto done;
+		}
+	} else {
+		adapter->empty_tx_q_cnt = 0;
+	}
+
+	/* Delay scan operation further by 20msec */
+	mod_timer(&priv->scan_delay_timer, jiffies +
+		  msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC));
+	adapter->scan_delay_cnt++;
+
+done:
+	if (atomic_read(&priv->adapter->is_tx_received))
+		atomic_set(&priv->adapter->is_tx_received, false);
+
+	return;
+}
+
 /*
  * This function registers the device and performs all the necessary
  * initializations.
@@ -75,6 +153,10 @@ static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
 
 		adapter->priv[i]->adapter = adapter;
 		adapter->priv_num++;
+
+		setup_timer(&adapter->priv[i]->scan_delay_timer,
+			    scan_delay_timer_fn,
+			    (unsigned long)adapter->priv[i]);
 	}
 	mwifiex_init_lock_list(adapter);
 
-- 
cgit v0.10.2


From c9e2404c9ffcbb31b0bd1348be5fc7a4de6f90d6 Mon Sep 17 00:00:00 2001
From: Avinash Patil <patila@marvell.com>
Date: Tue, 4 Jun 2013 16:20:38 -0700
Subject: mwifiex: enable/disable tx_amsdu support via module parameter

This patch disables tx_amsdu support in mwifiex by default.
tx_amdsu support can be enabled via module parameter at load time.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c
index 4be3d33..944e884 100644
--- a/drivers/net/wireless/mwifiex/wmm.c
+++ b/drivers/net/wireless/mwifiex/wmm.c
@@ -37,6 +37,9 @@
 /* Offset for TOS field in the IP header */
 #define IPTOS_OFFSET 5
 
+static bool enable_tx_amsdu;
+module_param(enable_tx_amsdu, bool, 0644);
+
 /* WMM information IE */
 static const u8 wmm_info_ie[] = { WLAN_EID_VENDOR_SPECIFIC, 0x07,
 	0x00, 0x50, 0xf2, 0x02,
@@ -1233,7 +1236,7 @@ mwifiex_dequeue_tx_packet(struct mwifiex_adapter *adapter)
 				mwifiex_send_delba(priv, tid_del, ra, 1);
 			}
 		}
-		if (mwifiex_is_amsdu_allowed(priv, tid) &&
+		if (enable_tx_amsdu && mwifiex_is_amsdu_allowed(priv, tid) &&
 		    mwifiex_is_11n_aggragation_possible(priv, ptr,
 							adapter->tx_buf_size))
 			mwifiex_11n_aggregate_pkt(priv, ptr, INTF_HEADER_LEN,
-- 
cgit v0.10.2


From ca3ae51396c049fcb9a93ded6f90ec81f7360ffa Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 5 Jun 2013 10:16:33 +0800
Subject: iwlegacy: fix error return code in il3945_pci_probe()

Fix to return a negative error code in the il3945_hw_set_hw_params() error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index b37a582..866ce6c 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -3727,7 +3727,8 @@ il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * 5. Setup HW Constants
 	 * ********************/
 	/* Device-specific setup */
-	if (il3945_hw_set_hw_params(il)) {
+	err = il3945_hw_set_hw_params(il);
+	if (err) {
 		IL_ERR("failed to set hw settings\n");
 		goto out_eeprom_free;
 	}
-- 
cgit v0.10.2


From d619c62f161a43db1f40e5039ff1285dd29b8658 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Wed, 5 Jun 2013 20:45:36 -0700
Subject: ath: add VHT80 support for regulatory domains

This adds VHT80 support for the QCA world regulatory
domains.

Cc: kvalo@qca.qualcomm.com
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index ccc4c71..7d077c7 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -42,11 +42,11 @@ static int __ath_regd_init(struct ath_regulatory *reg);
 				NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_OFDM)
 
 /* We allow IBSS on these on a case by case basis by regulatory domain */
-#define ATH9K_5GHZ_5150_5350	REG_RULE(5150-10, 5350+10, 40, 0, 30,\
+#define ATH9K_5GHZ_5150_5350	REG_RULE(5150-10, 5350+10, 80, 0, 30,\
 				NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS)
-#define ATH9K_5GHZ_5470_5850	REG_RULE(5470-10, 5850+10, 40, 0, 30,\
+#define ATH9K_5GHZ_5470_5850	REG_RULE(5470-10, 5850+10, 80, 0, 30,\
 				NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS)
-#define ATH9K_5GHZ_5725_5850	REG_RULE(5725-10, 5850+10, 40, 0, 30,\
+#define ATH9K_5GHZ_5725_5850	REG_RULE(5725-10, 5850+10, 80, 0, 30,\
 				NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS)
 
 #define ATH9K_2GHZ_ALL		ATH9K_2GHZ_CH01_11, \
-- 
cgit v0.10.2


From 5616a6efb2a255330319f9f09f3bcf0fc4680b5f Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 6 Jun 2013 09:36:19 +0200
Subject: rt2x00: move extra_tx_headroom field from rt2x00_ops to rt2x00_dev

The extra_tx_headroom field of struct rt2x00_ops
indicates the extra TX headroom size required for
a given device. This data is redundant, the value
can be computed from the desc_size and winfo_size
fields of the TX queues.

Move the extra_tx_headroom field to struct rt2x00_dev,
compute its value in the probe routine and use the
cached value in the rest of the code.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index e1ec9a4..3d53a09 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1813,7 +1813,6 @@ static const struct rt2x00_ops rt2400pci_ops = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.extra_tx_headroom	= 0,
 	.queue_init		= rt2400pci_queue_init,
 	.lib			= &rt2400pci_rt2x00_ops,
 	.hw			= &rt2400pci_mac80211_ops,
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index a1670e8..0ac5c58 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -2102,7 +2102,6 @@ static const struct rt2x00_ops rt2500pci_ops = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.extra_tx_headroom	= 0,
 	.queue_init		= rt2500pci_queue_init,
 	.lib			= &rt2500pci_rt2x00_ops,
 	.hw			= &rt2500pci_mac80211_ops,
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index e5e5479..85acc79 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1913,7 +1913,6 @@ static const struct rt2x00_ops rt2500usb_ops = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.extra_tx_headroom	= TXD_DESC_SIZE,
 	.queue_init		= rt2500usb_queue_init,
 	.lib			= &rt2500usb_rt2x00_ops,
 	.hw			= &rt2500usb_mac80211_ops,
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 260c8b4..7c74782 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -1231,7 +1231,6 @@ static const struct rt2x00_ops rt2800pci_ops = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.extra_tx_headroom	= TXWI_DESC_SIZE,
 	.queue_init		= rt2800pci_queue_init,
 	.lib			= &rt2800pci_rt2x00_ops,
 	.drv			= &rt2800pci_rt2800_ops,
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index b81d509..68ea00e 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -905,7 +905,6 @@ static const struct rt2x00_ops rt2800usb_ops = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.extra_tx_headroom	= TXINFO_DESC_SIZE + TXWI_DESC_SIZE,
 	.queue_init		= rt2800usb_queue_init,
 	.lib			= &rt2800usb_rt2x00_ops,
 	.drv			= &rt2800usb_rt2800_ops,
@@ -922,7 +921,6 @@ static const struct rt2x00_ops rt2800usb_ops_5592 = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.extra_tx_headroom	= TXINFO_DESC_SIZE + TXWI_DESC_SIZE_5592,
 	.queue_init		= rt2800usb_queue_init,
 	.lib			= &rt2800usb_rt2x00_ops,
 	.drv			= &rt2800usb_rt2800_ops,
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 2a17f7e..ee3fc57 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -648,7 +648,6 @@ struct rt2x00_ops {
 	const unsigned int eeprom_size;
 	const unsigned int rf_size;
 	const unsigned int tx_queues;
-	const unsigned int extra_tx_headroom;
 	void (*queue_init)(struct data_queue *queue);
 	const struct rt2x00lib_ops *lib;
 	const void *drv;
@@ -1007,6 +1006,9 @@ struct rt2x00_dev {
 	 */
 	struct list_head bar_list;
 	spinlock_t bar_list_lock;
+
+	/* Extra TX headroom required for alignment purposes. */
+	unsigned int extra_tx_headroom;
 };
 
 struct rt2x00_bar_list_entry {
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index dff5012..f03e3bb 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -334,7 +334,7 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 	/*
 	 * Remove the extra tx headroom from the skb.
 	 */
-	skb_pull(entry->skb, rt2x00dev->ops->extra_tx_headroom);
+	skb_pull(entry->skb, rt2x00dev->extra_tx_headroom);
 
 	/*
 	 * Signal that the TX descriptor is no longer in the skb.
@@ -1049,7 +1049,7 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev)
 	 */
 	rt2x00dev->hw->extra_tx_headroom =
 		max_t(unsigned int, IEEE80211_TX_STATUS_HEADROOM,
-		      rt2x00dev->ops->extra_tx_headroom);
+		      rt2x00dev->extra_tx_headroom);
 
 	/*
 	 * Take TX headroom required for alignment into account.
@@ -1256,6 +1256,17 @@ static inline void rt2x00lib_set_if_combinations(struct rt2x00_dev *rt2x00dev)
 	rt2x00dev->hw->wiphy->n_iface_combinations = 1;
 }
 
+static unsigned int rt2x00dev_extra_tx_headroom(struct rt2x00_dev *rt2x00dev)
+{
+	if (WARN_ON(!rt2x00dev->tx))
+		return 0;
+
+	if (rt2x00_is_usb(rt2x00dev))
+		return rt2x00dev->tx[0].winfo_size + rt2x00dev->tx[0].desc_size;
+
+	return rt2x00dev->tx[0].winfo_size;
+}
+
 /*
  * driver allocation handlers.
  */
@@ -1330,6 +1341,9 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
 	if (retval)
 		goto exit;
 
+	/* Cache TX headroom value */
+	rt2x00dev->extra_tx_headroom = rt2x00dev_extra_tx_headroom(rt2x00dev);
+
 	/*
 	 * Determine which operating modes are supported, all modes
 	 * which require beaconing, depend on the availability of
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index c4f1e2b..6c0a91f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -542,8 +542,8 @@ static int rt2x00queue_write_tx_data(struct queue_entry *entry,
 	/*
 	 * Add the requested extra tx headroom in front of the skb.
 	 */
-	skb_push(entry->skb, rt2x00dev->ops->extra_tx_headroom);
-	memset(entry->skb->data, 0, rt2x00dev->ops->extra_tx_headroom);
+	skb_push(entry->skb, rt2x00dev->extra_tx_headroom);
+	memset(entry->skb->data, 0, rt2x00dev->extra_tx_headroom);
 
 	/*
 	 * Call the driver's write_tx_data function, if it exists.
@@ -596,7 +596,7 @@ static void rt2x00queue_bar_check(struct queue_entry *entry)
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
 	struct ieee80211_bar *bar = (void *) (entry->skb->data +
-				    rt2x00dev->ops->extra_tx_headroom);
+				    rt2x00dev->extra_tx_headroom);
 	struct rt2x00_bar_list_entry *bar_entry;
 
 	if (likely(!ieee80211_is_back_req(bar->frame_control)))
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 17507d1..53754bc6 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -3066,7 +3066,6 @@ static const struct rt2x00_ops rt61pci_ops = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.extra_tx_headroom	= 0,
 	.queue_init		= rt61pci_queue_init,
 	.lib			= &rt61pci_rt2x00_ops,
 	.hw			= &rt61pci_mac80211_ops,
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index b2e346a..1616ed4 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -2400,7 +2400,6 @@ static const struct rt2x00_ops rt73usb_ops = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.extra_tx_headroom	= TXD_DESC_SIZE,
 	.queue_init		= rt73usb_queue_init,
 	.lib			= &rt73usb_rt2x00_ops,
 	.hw			= &rt73usb_mac80211_ops,
-- 
cgit v0.10.2


From 7ce0bad5c4586e4e9fb9d3e90d89101cd06fb999 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 6 Jun 2013 09:36:20 +0200
Subject: rt2x00: rt2800usb: nuke rt2800usb_ops_5592

It is exactly the same like the generic rt2800usb_ops.
Remove the duplicate and use the generic ops for all
devices.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 68ea00e..7edd903 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -914,22 +914,6 @@ static const struct rt2x00_ops rt2800usb_ops = {
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 };
 
-static const struct rt2x00_ops rt2800usb_ops_5592 = {
-	.name			= KBUILD_MODNAME,
-	.drv_data_size		= sizeof(struct rt2800_drv_data),
-	.max_ap_intf		= 8,
-	.eeprom_size		= EEPROM_SIZE,
-	.rf_size		= RF_SIZE,
-	.tx_queues		= NUM_TX_QUEUES,
-	.queue_init		= rt2800usb_queue_init,
-	.lib			= &rt2800usb_rt2x00_ops,
-	.drv			= &rt2800usb_rt2800_ops,
-	.hw			= &rt2800usb_mac80211_ops,
-#ifdef CONFIG_RT2X00_LIB_DEBUGFS
-	.debugfs		= &rt2800_rt2x00debug,
-#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
-};
-
 /*
  * rt2800usb module information.
  */
@@ -1242,15 +1226,15 @@ static struct usb_device_id rt2800usb_device_table[] = {
 #endif
 #ifdef CONFIG_RT2800USB_RT55XX
 	/* Arcadyan */
-	{ USB_DEVICE(0x043e, 0x7a32), .driver_info = 5592 },
+	{ USB_DEVICE(0x043e, 0x7a32) },
 	/* AVM GmbH */
-	{ USB_DEVICE(0x057c, 0x8501), .driver_info = 5592 },
+	{ USB_DEVICE(0x057c, 0x8501) },
 	/* D-Link DWA-160-B2 */
-	{ USB_DEVICE(0x2001, 0x3c1a), .driver_info = 5592 },
+	{ USB_DEVICE(0x2001, 0x3c1a) },
 	/* Proware */
-	{ USB_DEVICE(0x043e, 0x7a13), .driver_info = 5592 },
+	{ USB_DEVICE(0x043e, 0x7a13) },
 	/* Ralink */
-	{ USB_DEVICE(0x148f, 0x5572), .driver_info = 5592 },
+	{ USB_DEVICE(0x148f, 0x5572) },
 #endif
 #ifdef CONFIG_RT2800USB_UNKNOWN
 	/*
@@ -1355,9 +1339,6 @@ MODULE_LICENSE("GPL");
 static int rt2800usb_probe(struct usb_interface *usb_intf,
 			   const struct usb_device_id *id)
 {
-	if (id->driver_info == 5592)
-		return rt2x00usb_probe(usb_intf, &rt2800usb_ops_5592);
-
 	return rt2x00usb_probe(usb_intf, &rt2800usb_ops);
 }
 
-- 
cgit v0.10.2


From f55d94a600ab5db0df4eccbc15d889ae104d058e Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:46 +0200
Subject: brcmfmac: allow firmware-signal tlv to be longer than specified

The firmware-signal API specification defines length for the different
tlv. During testing on different devices it turned out not all firmware
used the tlv length according specification. Therefore the length check
is made less strict with this patch.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 5352dc1..d6f05ae 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1433,7 +1433,7 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 		if (data_len < len + 2)
 			break;
 
-		if (len != brcmf_fws_get_tlv_len(fws, type))
+		if (len < brcmf_fws_get_tlv_len(fws, type))
 			break;
 
 		err = BRCMF_FWS_RET_OK_NOSCHEDULE;
-- 
cgit v0.10.2


From 51f6dd9da27359d9218046ed0003f71e05a673c1 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:47 +0200
Subject: brcmfmac: remove fifo bitfield from brcmf_skbuff_cb::if_flags

The brcmf_skbuff_cb structure contain if_flags and htod fields. Both
have a bitfield defined to hold the fifo number. With a small code
change we get rid of the fifo bitfield in if_flags.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index d6f05ae..bc2edc0 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -195,7 +195,6 @@ struct brcmf_skbuff_cb {
  *	b[9]   - packet is a tx packet.
  *	b[8]   - packet uses FIFO credit (non-pspoll).
  *	b[7]   - interface in AP mode.
- *	b[6:4] - AC FIFO number.
  *	b[3:0] - interface index.
  */
 #define BRCMF_SKB_IF_FLAGS_REQUESTED_MASK	0x0800
@@ -208,8 +207,6 @@ struct brcmf_skbuff_cb {
 #define BRCMF_SKB_IF_FLAGS_CREDITCHECK_SHIFT	8
 #define BRCMF_SKB_IF_FLAGS_IF_AP_MASK		0x0080
 #define BRCMF_SKB_IF_FLAGS_IF_AP_SHIFT		7
-#define BRCMF_SKB_IF_FLAGS_FIFO_MASK		0x0070
-#define BRCMF_SKB_IF_FLAGS_FIFO_SHIFT		4
 #define BRCMF_SKB_IF_FLAGS_INDEX_MASK		0x000f
 #define BRCMF_SKB_IF_FLAGS_INDEX_SHIFT		0
 
@@ -1608,7 +1605,8 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 }
 
 static void
-brcmf_fws_rollback_toq(struct brcmf_fws_info *fws, struct sk_buff *skb)
+brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
+		       struct sk_buff *skb, int fifo)
 {
 	/*
 	put the packet back to the head of queue
@@ -1622,11 +1620,9 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws, struct sk_buff *skb)
 	enum brcmf_fws_skb_state state;
 	struct sk_buff *pktout;
 	int rc = 0;
-	int fifo;
 	int hslot;
 	u8 ifidx;
 
-	fifo = brcmf_skb_if_flags_get_field(skb, FIFO);
 	state = brcmf_skbcb(skb)->state;
 	entry = brcmf_skbcb(skb)->mac;
 
@@ -1794,7 +1790,7 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 	return rc;
 
 rollback:
-	brcmf_fws_rollback_toq(fws, skb);
+	brcmf_fws_rollback_toq(fws, skb, fifo);
 	return rc;
 }
 
@@ -1831,7 +1827,6 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 	brcmf_skb_if_flags_set_field(skb, INDEX, ifp->ifidx);
 	if (!multicast)
 		fifo = brcmf_fws_prio2fifo[skb->priority];
-	brcmf_skb_if_flags_set_field(skb, FIFO, fifo);
 
 	brcmf_dbg(TRACE, "ea=%pM, multi=%d, fifo=%d\n", eh->h_dest,
 		  multicast, fifo);
-- 
cgit v0.10.2


From df50f756966cc07addaae5449a6fd45a17bdb06c Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:48 +0200
Subject: brcmfmac: Take bus flowcontrol at credit mgmt into account.

On bus flow control (no more host bus resources to send packets
to device) the netif flow control was toggled, however credit
management should also take this status into account. Since there
are multiple sources handling this flow control necessary spinlocks
were added to protect flow control related data/states.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
index 28db9cf..86cbfe2 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
@@ -583,6 +583,7 @@ enum brcmf_netif_stop_reason {
  * @bssidx: index of bss associated with this interface.
  * @mac_addr: assigned mac address.
  * @netif_stop: bitmap indicates reason why netif queues are stopped.
+ * @netif_stop_lock: spinlock for update netif_stop from multiple sources.
  * @pend_8021x_cnt: tracks outstanding number of 802.1x frames.
  * @pend_8021x_wait: used for signalling change in count.
  */
@@ -598,6 +599,7 @@ struct brcmf_if {
 	s32 bssidx;
 	u8 mac_addr[ETH_ALEN];
 	u8 netif_stop;
+	spinlock_t netif_stop_lock;
 	atomic_t pend_8021x_cnt;
 	wait_queue_head_t pend_8021x_wait;
 };
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index b98f223..df37645 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -240,11 +240,15 @@ done:
 void brcmf_txflowblock_if(struct brcmf_if *ifp,
 			  enum brcmf_netif_stop_reason reason, bool state)
 {
+	unsigned long flags;
+
 	if (!ifp)
 		return;
 
 	brcmf_dbg(TRACE, "enter: idx=%d stop=0x%X reason=%d state=%d\n",
 		  ifp->bssidx, ifp->netif_stop, reason, state);
+
+	spin_lock_irqsave(&ifp->netif_stop_lock, flags);
 	if (state) {
 		if (!ifp->netif_stop)
 			netif_stop_queue(ifp->ndev);
@@ -254,6 +258,7 @@ void brcmf_txflowblock_if(struct brcmf_if *ifp,
 		if (!ifp->netif_stop)
 			netif_wake_queue(ifp->ndev);
 	}
+	spin_unlock_irqrestore(&ifp->netif_stop_lock, flags);
 }
 
 void brcmf_txflowblock(struct device *dev, bool state)
@@ -264,6 +269,8 @@ void brcmf_txflowblock(struct device *dev, bool state)
 
 	brcmf_dbg(TRACE, "Enter\n");
 
+	brcmf_fws_bus_blocked(drvr, state);
+
 	for (i = 0; i < BRCMF_MAX_IFS; i++)
 		brcmf_txflowblock_if(drvr->iflist[i],
 				     BRCMF_NETIF_STOP_REASON_BLOCK_BUS, state);
@@ -779,6 +786,7 @@ struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
 	ifp->bssidx = bssidx;
 
 	init_waitqueue_head(&ifp->pend_8021x_wait);
+	spin_lock_init(&ifp->netif_stop_lock);
 
 	if (mac_addr != NULL)
 		memcpy(ifp->mac_addr, mac_addr, ETH_ALEN);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index d248751..6f3d181 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -2369,12 +2369,12 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
 	} else {
 		ret = 0;
 	}
-	spin_unlock_bh(&bus->txqlock);
 
 	if (pktq_len(&bus->txq) >= TXHI) {
 		bus->txoff = true;
 		brcmf_txflowblock(bus->sdiodev->dev, true);
 	}
+	spin_unlock_bh(&bus->txqlock);
 
 #ifdef DEBUG
 	if (pktq_plen(&bus->txq, prec) > qcount[prec])
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index bc2edc0..c1930ef5 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -431,6 +431,7 @@ struct brcmf_fws_info {
 	u32 fifo_credit_map;
 	u32 fifo_delay_map;
 	unsigned long borrow_defer_timestamp;
+	bool bus_flow_blocked;
 };
 
 /*
@@ -1833,6 +1834,7 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 
 	brcmf_fws_lock(drvr, flags);
 	if (skcb->mac->suppressed ||
+	    fws->bus_flow_blocked ||
 	    brcmf_fws_mac_desc_closed(fws, skcb->mac, fifo) ||
 	    brcmu_pktq_mlen(&skcb->mac->psq, 3 << (fifo * 2)) ||
 	    (!multicast &&
@@ -1905,7 +1907,8 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 
 	brcmf_dbg(TRACE, "enter: fws=%p\n", fws);
 	brcmf_fws_lock(fws->drvr, flags);
-	for (fifo = NL80211_NUM_ACS; fifo >= 0; fifo--) {
+	for (fifo = NL80211_NUM_ACS; fifo >= 0 && !fws->bus_flow_blocked;
+	     fifo--) {
 		brcmf_dbg(TRACE, "fifo %d credit %d\n", fifo,
 			  fws->fifo_credit[fifo]);
 		for (credit = 0; credit < fws->fifo_credit[fifo]; /* nop */) {
@@ -1915,9 +1918,12 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 			if (brcmf_skbcb(skb)->if_flags &
 			    BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
 				credit++;
+			if (fws->bus_flow_blocked)
+				break;
 		}
 		if ((fifo == BRCMF_FWS_FIFO_AC_BE) &&
-		    (credit == fws->fifo_credit[fifo])) {
+		    (credit == fws->fifo_credit[fifo]) &&
+		    (!fws->bus_flow_blocked)) {
 			fws->fifo_credit[fifo] -= credit;
 			while (brcmf_fws_borrow_credit(fws) == 0) {
 				skb = brcmf_fws_deq(fws, fifo);
@@ -1929,6 +1935,8 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 					brcmf_fws_return_credits(fws, fifo, 1);
 					break;
 				}
+				if (fws->bus_flow_blocked)
+					break;
 			}
 		} else {
 			fws->fifo_credit[fifo] -= credit;
@@ -2060,3 +2068,12 @@ void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
 	}
 	brcmf_fws_unlock(fws->drvr, flags);
 }
+
+void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked)
+{
+	struct brcmf_fws_info *fws = drvr->fws;
+
+	fws->bus_flow_blocked = flow_blocked;
+	if (!flow_blocked)
+		brcmf_fws_schedule_deq(fws);
+}
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h
index fbe483d..9fc8609 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.h
@@ -29,5 +29,6 @@ void brcmf_fws_reset_interface(struct brcmf_if *ifp);
 void brcmf_fws_add_interface(struct brcmf_if *ifp);
 void brcmf_fws_del_interface(struct brcmf_if *ifp);
 void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb);
+void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked);
 
 #endif /* FWSIGNAL_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
index 01aed7a..322cadc 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
@@ -82,6 +82,7 @@ struct brcmf_usbdev_info {
 	int tx_high_watermark;
 	int tx_freecount;
 	bool tx_flowblock;
+	spinlock_t tx_flowblock_lock;
 
 	struct brcmf_usbreq *tx_reqs;
 	struct brcmf_usbreq *rx_reqs;
@@ -411,6 +412,7 @@ static void brcmf_usb_tx_complete(struct urb *urb)
 {
 	struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
 	struct brcmf_usbdev_info *devinfo = req->devinfo;
+	unsigned long flags;
 
 	brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
 		  req->skb);
@@ -419,11 +421,13 @@ static void brcmf_usb_tx_complete(struct urb *urb)
 	brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
 	req->skb = NULL;
 	brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
+	spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
 	if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
 		devinfo->tx_flowblock) {
 		brcmf_txflowblock(devinfo->dev, false);
 		devinfo->tx_flowblock = false;
 	}
+	spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
 }
 
 static void brcmf_usb_rx_complete(struct urb *urb)
@@ -568,6 +572,7 @@ static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
 	struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
 	struct brcmf_usbreq  *req;
 	int ret;
+	unsigned long flags;
 
 	brcmf_dbg(USB, "Enter, skb=%p\n", skb);
 	if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
@@ -599,11 +604,13 @@ static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
 		goto fail;
 	}
 
+	spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
 	if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
 	    !devinfo->tx_flowblock) {
 		brcmf_txflowblock(dev, true);
 		devinfo->tx_flowblock = true;
 	}
+	spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
 	return 0;
 
 fail:
@@ -1164,6 +1171,7 @@ struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
 
 	/* Initialize the spinlocks */
 	spin_lock_init(&devinfo->qlock);
+	spin_lock_init(&devinfo->tx_flowblock_lock);
 
 	INIT_LIST_HEAD(&devinfo->rx_freeq);
 	INIT_LIST_HEAD(&devinfo->rx_postq);
-- 
cgit v0.10.2


From fe353b24c385f219aca1e19767119017618deca7 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:49 +0200
Subject: brcmfmac: rework credit pickup to assure consistent handling

Reworked brcmf_skb_pick_up_credit() so it can be used for both
fcmode flavours in the same way.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index c1930ef5..a7a0247 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1040,24 +1040,21 @@ static void brcmf_fws_schedule_deq(struct brcmf_fws_info *fws)
 		queue_work(fws->fws_wq, &fws->fws_dequeue_work);
 }
 
-static void brcmf_skb_pick_up_credit(struct brcmf_fws_info *fws, int fifo,
+static void brcmf_fws_skb_pickup_credit(struct brcmf_fws_info *fws, int fifo,
 				     struct sk_buff *p)
 {
 	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(p)->mac;
 
-	if (brcmf_skbcb(p)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) {
-		if (fws->fcmode != BRCMF_FWS_FCMODE_IMPLIED_CREDIT)
-			return;
+	if (brcmf_skbcb(p)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
 		brcmf_fws_return_credits(fws, fifo, 1);
-	} else {
+	else if (!brcmf_skb_if_flags_get_field(p, REQUESTED))
 		/*
 		 * if this packet did not count against FIFO credit, it
 		 * must have taken a requested_credit from the destination
 		 * entry (for pspoll etc.)
 		 */
-		if (!brcmf_skb_if_flags_get_field(p, REQUESTED))
-			entry->requested_credit++;
-	}
+		entry->requested_credit++;
+
 	brcmf_fws_schedule_deq(fws);
 }
 
@@ -1272,7 +1269,9 @@ brcmf_fws_txstatus_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 
 	/* pick up the implicit credit from this packet */
 	fifo = brcmf_skb_htod_tag_get_field(skb, FIFO);
-	brcmf_skb_pick_up_credit(fws, fifo, skb);
+	if (fws->fcmode == BRCMF_FWS_FCMODE_IMPLIED_CREDIT ||
+	    !(brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK))
+		brcmf_fws_skb_pickup_credit(fws, fifo, skb);
 
 	if (!remove_from_hanger)
 		ret = brcmf_fws_txstatus_suppressed(fws, fifo, skb, genbit);
@@ -1845,7 +1844,7 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 	} else {
 		if (brcmf_fws_commit_skb(fws, fifo, skb))
 			if (!multicast)
-				brcmf_skb_pick_up_credit(fws, fifo, skb);
+				brcmf_fws_skb_pickup_credit(fws, fifo, skb);
 	}
 	brcmf_fws_unlock(drvr, flags);
 	return 0;
@@ -2053,18 +2052,15 @@ bool brcmf_fws_fc_active(struct brcmf_fws_info *fws)
 void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
 {
 	ulong flags;
+	int fifo;
 
 	brcmf_fws_lock(fws->drvr, flags);
 	brcmf_fws_txstatus_process(fws, BRCMF_FWS_TXSTATUS_FW_TOSSED,
 				   brcmf_skb_htod_tag_get_field(skb, HSLOT), 0);
 	/* the packet never reached firmware so reclaim credit */
-	if (fws->fcmode == BRCMF_FWS_FCMODE_EXPLICIT_CREDIT &&
-	    brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) {
-		brcmf_fws_return_credits(fws,
-					 brcmf_skb_htod_tag_get_field(skb,
-								      FIFO),
-					 1);
-		brcmf_fws_schedule_deq(fws);
+	if (fws->fcmode == BRCMF_FWS_FCMODE_EXPLICIT_CREDIT) {
+		fifo = brcmf_skb_htod_tag_get_field(skb, FIFO);
+		brcmf_fws_skb_pickup_credit(fws, fifo, skb);
 	}
 	brcmf_fws_unlock(fws->drvr, flags);
 }
-- 
cgit v0.10.2


From 289ec1c71911fe4b1b9bab25ae4a2ab75036b72d Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:50 +0200
Subject: brcmfmac: explicitly indicate sk_buff is sent upon request credit

Firmware can request the driver for transmit packets using two different
signals. Only for one signal a flag was set in the sk_buff control
buffer. This patch adds explicit flag for the other signal as well.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index a7a0247..d080874 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -190,13 +190,16 @@ struct brcmf_skbuff_cb {
 /*
  * sk_buff control if flags
  *
- *	b[11]  - packet sent upon firmware request.
+ *	b[12]  - packet sent upon credit request.
+ *	b[11]  - packet sent upon packet request.
  *	b[10]  - packet only contains signalling data.
  *	b[9]   - packet is a tx packet.
  *	b[8]   - packet uses FIFO credit (non-pspoll).
  *	b[7]   - interface in AP mode.
  *	b[3:0] - interface index.
  */
+#define BRCMF_SKB_IF_FLAGS_REQ_CREDIT_MASK	0x1000
+#define BRCMF_SKB_IF_FLAGS_REQ_CREDIT_SHIFT	12
 #define BRCMF_SKB_IF_FLAGS_REQUESTED_MASK	0x0800
 #define BRCMF_SKB_IF_FLAGS_REQUESTED_SHIFT	11
 #define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_MASK	0x0400
@@ -998,6 +1001,37 @@ static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type,
 	return BRCMF_FWS_RET_OK_SCHEDULE;
 }
 
+static int brcmf_fws_macdesc_use_credit(struct brcmf_fws_mac_descriptor *entry,
+					struct sk_buff *skb)
+{
+	int use_credit = 1;
+
+	if (entry->state == BRCMF_FWS_STATE_CLOSE) {
+		if (entry->requested_credit > 0) {
+			/*
+			 * if the packet was pulled out while destination is in
+			 * closed state but had a non-zero packets requested,
+			 * then this should not count against the FIFO credit.
+			 * That is due to the fact that the firmware will
+			 * most likely hold onto this packet until a suitable
+			 * time later to push it to the appropriate AC FIFO.
+			 */
+			entry->requested_credit--;
+			brcmf_skb_if_flags_set_field(skb, REQ_CREDIT, 1);
+			use_credit = 0;
+		} else if (entry->requested_packet > 0) {
+			entry->requested_packet--;
+			brcmf_skb_if_flags_set_field(skb, REQUESTED, 1);
+			use_credit = 0;
+		}
+	} else {
+		WARN_ON(entry->requested_credit);
+		WARN_ON(entry->requested_packet);
+	}
+	brcmf_skb_if_flags_set_field(skb, CREDITCHECK, use_credit);
+	return use_credit;
+}
+
 static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
 				     u8 fifo, u8 credits)
 {
@@ -1047,10 +1081,11 @@ static void brcmf_fws_skb_pickup_credit(struct brcmf_fws_info *fws, int fifo,
 
 	if (brcmf_skbcb(p)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
 		brcmf_fws_return_credits(fws, fifo, 1);
-	else if (!brcmf_skb_if_flags_get_field(p, REQUESTED))
+	else if (brcmf_skb_if_flags_get_field(p, REQ_CREDIT) &&
+		 entry->state == BRCMF_FWS_STATE_CLOSE)
 		/*
 		 * if this packet did not count against FIFO credit, it
-		 * must have taken a requested_credit from the destination
+		 * could have taken a requested_credit from the destination
 		 * entry (for pspoll etc.)
 		 */
 		entry->requested_credit++;
@@ -1108,7 +1143,6 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
 	struct brcmf_fws_mac_descriptor *table;
 	struct brcmf_fws_mac_descriptor *entry;
 	struct sk_buff *p;
-	int use_credit = 1;
 	int num_nodes;
 	int node_pos;
 	int prec_out;
@@ -1143,26 +1177,7 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
 		if  (p == NULL)
 			continue;
 
-		/* did the packet come from suppress sub-queue? */
-		if (entry->requested_credit > 0) {
-			entry->requested_credit--;
-			/*
-			 * if the packet was pulled out while destination is in
-			 * closed state but had a non-zero packets requested,
-			 * then this should not count against the FIFO credit.
-			 * That is due to the fact that the firmware will
-			 * most likely hold onto this packet until a suitable
-			 * time later to push it to the appropriate AC FIFO.
-			 */
-			if (entry->state == BRCMF_FWS_STATE_CLOSE)
-				use_credit = 0;
-		} else if (entry->requested_packet > 0) {
-			entry->requested_packet--;
-			brcmf_skb_if_flags_set_field(p, REQUESTED, 1);
-			if (entry->state == BRCMF_FWS_STATE_CLOSE)
-				use_credit = 0;
-		}
-		brcmf_skb_if_flags_set_field(p, CREDITCHECK, use_credit);
+		brcmf_fws_macdesc_use_credit(entry, p);
 
 		/* move dequeue position to ensure fair round-robin */
 		fws->deq_node_pos[fifo] = (node_pos + i + 1) % num_nodes;
@@ -1664,13 +1679,6 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
 			/* decrement sequence count */
 			entry->seq[fifo]--;
 		}
-		/*
-		if this packet did not count against FIFO credit, it must have
-		taken a requested_credit from the firmware (for pspoll etc.)
-		*/
-		if (!(brcmf_skbcb(skb)->if_flags &
-		      BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK))
-			entry->requested_credit++;
 	} else {
 		brcmf_err("no mac entry linked\n");
 		rc = -ENOENT;
@@ -1679,10 +1687,12 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
 
 fail:
 	if (rc) {
-		brcmf_txfinalize(fws->drvr, skb, false);
+		brcmf_fws_bustxfail(fws, skb);
 		fws->stats.rollback_failed++;
-	} else
+	} else {
 		fws->stats.rollback_success++;
+		brcmf_fws_skb_pickup_credit(fws, fifo, skb);
+	}
 }
 
 static int brcmf_fws_borrow_credit(struct brcmf_fws_info *fws)
@@ -1710,30 +1720,10 @@ static int brcmf_fws_consume_credit(struct brcmf_fws_info *fws, int fifo,
 {
 	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
 	int *credit = &fws->fifo_credit[fifo];
-	int use_credit = 1;
 
 	brcmf_dbg(TRACE, "enter: ac=%d, credits=%d\n", fifo, *credit);
 
-	if (entry->requested_credit > 0) {
-		/*
-		 * if the packet was pulled out while destination is in
-		 * closed state but had a non-zero packets requested,
-		 * then this should not count against the FIFO credit.
-		 * That is due to the fact that the firmware will
-		 * most likely hold onto this packet until a suitable
-		 * time later to push it to the appropriate AC FIFO.
-		 */
-		entry->requested_credit--;
-		if (entry->state == BRCMF_FWS_STATE_CLOSE)
-			use_credit = 0;
-	} else if (entry->requested_packet > 0) {
-		entry->requested_packet--;
-		brcmf_skb_if_flags_set_field(skb, REQUESTED, 1);
-		if (entry->state == BRCMF_FWS_STATE_CLOSE)
-			use_credit = 0;
-	}
-	brcmf_skb_if_flags_set_field(skb, CREDITCHECK, use_credit);
-	if (!use_credit) {
+	if (!brcmf_fws_macdesc_use_credit(entry, skb)) {
 		brcmf_dbg(TRACE, "exit: no creditcheck set\n");
 		return 0;
 	}
@@ -1842,9 +1832,7 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 		drvr->fws->fifo_delay_map |= 1 << fifo;
 		brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
 	} else {
-		if (brcmf_fws_commit_skb(fws, fifo, skb))
-			if (!multicast)
-				brcmf_fws_skb_pickup_credit(fws, fifo, skb);
+		brcmf_fws_commit_skb(fws, fifo, skb);
 	}
 	brcmf_fws_unlock(drvr, flags);
 	return 0;
@@ -1900,7 +1888,6 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 	struct sk_buff *skb;
 	ulong flags;
 	int fifo;
-	int credit;
 
 	fws = container_of(worker, struct brcmf_fws_info, fws_dequeue_work);
 
@@ -1910,35 +1897,32 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 	     fifo--) {
 		brcmf_dbg(TRACE, "fifo %d credit %d\n", fifo,
 			  fws->fifo_credit[fifo]);
-		for (credit = 0; credit < fws->fifo_credit[fifo]; /* nop */) {
+		while (fws->fifo_credit[fifo]) {
 			skb = brcmf_fws_deq(fws, fifo);
-			if (!skb || brcmf_fws_commit_skb(fws, fifo, skb))
+			if (!skb)
 				break;
 			if (brcmf_skbcb(skb)->if_flags &
 			    BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
-				credit++;
+				fws->fifo_credit[fifo]--;
+
+			if (brcmf_fws_commit_skb(fws, fifo, skb))
+				break;
 			if (fws->bus_flow_blocked)
 				break;
 		}
 		if ((fifo == BRCMF_FWS_FIFO_AC_BE) &&
-		    (credit == fws->fifo_credit[fifo]) &&
+		    (fws->fifo_credit[fifo] == 0) &&
 		    (!fws->bus_flow_blocked)) {
-			fws->fifo_credit[fifo] -= credit;
 			while (brcmf_fws_borrow_credit(fws) == 0) {
 				skb = brcmf_fws_deq(fws, fifo);
 				if (!skb) {
 					brcmf_fws_return_credits(fws, fifo, 1);
 					break;
 				}
-				if (brcmf_fws_commit_skb(fws, fifo, skb)) {
-					brcmf_fws_return_credits(fws, fifo, 1);
-					break;
-				}
+				brcmf_fws_commit_skb(fws, fifo, skb);
 				if (fws->bus_flow_blocked)
 					break;
 			}
-		} else {
-			fws->fifo_credit[fifo] -= credit;
 		}
 	}
 	brcmf_fws_unlock(fws->drvr, flags);
-- 
cgit v0.10.2


From 8071fd61b421f5c9b9a67a7c222c1f5581bcf0f3 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:51 +0200
Subject: brcmfmac: reducing debug logging in firmware-signalling code

The debug logging in firmware-signalling code was rather extensive and
for a large part in the data path. This patch removes large part or the
level is changed to DATA level.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index df37645..9450d10 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -179,7 +179,7 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb,
 	struct brcmf_pub *drvr = ifp->drvr;
 	struct ethhdr *eh;
 
-	brcmf_dbg(TRACE, "Enter, idx=%d\n", ifp->bssidx);
+	brcmf_dbg(DATA, "Enter, idx=%d\n", ifp->bssidx);
 
 	/* Can the device send data? */
 	if (drvr->bus_if->state != BRCMF_BUS_DATA) {
@@ -287,7 +287,7 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
 	u8 ifidx;
 	int ret;
 
-	brcmf_dbg(TRACE, "Enter\n");
+	brcmf_dbg(DATA, "Enter\n");
 
 	skb_queue_walk_safe(skb_list, skb, pnext) {
 		skb_unlink(skb, skb_list);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index d080874..73e3e1d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -343,6 +343,7 @@ enum brcmf_fws_mac_desc_state {
  * @transit_count: packet in transit to firmware.
  */
 struct brcmf_fws_mac_descriptor {
+	char name[16];
 	u8 occupied;
 	u8 mac_handle;
 	u8 interface_id;
@@ -508,7 +509,6 @@ static void brcmf_fws_hanger_init(struct brcmf_fws_hanger *hanger)
 {
 	int i;
 
-	brcmf_dbg(TRACE, "enter\n");
 	memset(hanger, 0, sizeof(*hanger));
 	for (i = 0; i < ARRAY_SIZE(hanger->items); i++)
 		hanger->items[i].state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
@@ -518,7 +518,6 @@ static u32 brcmf_fws_hanger_get_free_slot(struct brcmf_fws_hanger *h)
 {
 	u32 i;
 
-	brcmf_dbg(TRACE, "enter\n");
 	i = (h->slot_pos + 1) % BRCMF_FWS_HANGER_MAXITEMS;
 
 	while (i != h->slot_pos) {
@@ -534,14 +533,12 @@ static u32 brcmf_fws_hanger_get_free_slot(struct brcmf_fws_hanger *h)
 	h->failed_slotfind++;
 	i = BRCMF_FWS_HANGER_MAXITEMS;
 done:
-	brcmf_dbg(TRACE, "exit: %d\n", i);
 	return i;
 }
 
 static int brcmf_fws_hanger_pushpkt(struct brcmf_fws_hanger *h,
 					   struct sk_buff *pkt, u32 slot_id)
 {
-	brcmf_dbg(TRACE, "enter\n");
 	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
 		return -ENOENT;
 
@@ -561,7 +558,6 @@ static int brcmf_fws_hanger_poppkt(struct brcmf_fws_hanger *h,
 					  u32 slot_id, struct sk_buff **pktout,
 					  bool remove_item)
 {
-	brcmf_dbg(TRACE, "enter\n");
 	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
 		return -ENOENT;
 
@@ -584,8 +580,6 @@ static int brcmf_fws_hanger_poppkt(struct brcmf_fws_hanger *h,
 static int brcmf_fws_hanger_mark_suppressed(struct brcmf_fws_hanger *h,
 						   u32 slot_id, u8 gen)
 {
-	brcmf_dbg(TRACE, "enter\n");
-
 	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
 		return -ENOENT;
 
@@ -604,7 +598,6 @@ static int brcmf_fws_hanger_get_genbit(struct brcmf_fws_hanger *hanger,
 					      struct sk_buff *pkt, u32 slot_id,
 					      int *gen)
 {
-	brcmf_dbg(TRACE, "enter\n");
 	*gen = 0xff;
 
 	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
@@ -628,7 +621,6 @@ static void brcmf_fws_hanger_cleanup(struct brcmf_fws_info *fws,
 	int i;
 	enum brcmf_fws_hanger_item_state s;
 
-	brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
 	for (i = 0; i < ARRAY_SIZE(h->items); i++) {
 		s = h->items[i].state;
 		if (s == BRCMF_FWS_HANGER_ITEM_STATE_INUSE ||
@@ -645,6 +637,19 @@ static void brcmf_fws_hanger_cleanup(struct brcmf_fws_info *fws,
 	}
 }
 
+static void brcmf_fws_macdesc_set_name(struct brcmf_fws_info *fws,
+				       struct brcmf_fws_mac_descriptor *desc)
+{
+	if (desc == &fws->desc.other)
+		strlcpy(desc->name, "MAC-OTHER", sizeof(desc->name));
+	else if (desc->mac_handle)
+		scnprintf(desc->name, sizeof(desc->name), "MAC-%d:%d",
+			  desc->mac_handle, desc->interface_id);
+	else
+		scnprintf(desc->name, sizeof(desc->name), "MACIF:%d",
+			  desc->interface_id);
+}
+
 static void brcmf_fws_init_mac_descriptor(struct brcmf_fws_mac_descriptor *desc,
 					  u8 *addr, u8 ifidx)
 {
@@ -676,7 +681,6 @@ brcmf_fws_mac_descriptor_lookup(struct brcmf_fws_info *fws, u8 *ea)
 	struct brcmf_fws_mac_descriptor *entry;
 	int i;
 
-	brcmf_dbg(TRACE, "enter: ea=%pM\n", ea);
 	if (ea == NULL)
 		return ERR_PTR(-EINVAL);
 
@@ -698,8 +702,6 @@ brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, struct brcmf_if *ifp,
 	bool multicast;
 	enum nl80211_iftype iftype;
 
-	brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx);
-
 	multicast = is_multicast_ether_addr(da);
 	iftype = brcmf_cfg80211_get_iftype(ifp);
 
@@ -720,7 +722,6 @@ brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, struct brcmf_if *ifp,
 		entry = &fws->desc.other;
 
 done:
-	brcmf_dbg(TRACE, "exit: entry=%p\n", entry);
 	return entry;
 }
 
@@ -753,11 +754,7 @@ static void brcmf_fws_mac_desc_cleanup(struct brcmf_fws_info *fws,
 				       struct brcmf_fws_mac_descriptor *entry,
 				       int ifidx)
 {
-	brcmf_dbg(TRACE, "enter: entry=(ea=%pM, ifid=%d), ifidx=%d\n",
-		  entry->ea, entry->interface_id, ifidx);
 	if (entry->occupied && (ifidx == -1 || ifidx == entry->interface_id)) {
-		brcmf_dbg(TRACE, "flush psq: ifidx=%d, qlen=%d\n",
-			  ifidx, entry->psq.len);
 		brcmf_fws_psq_flush(fws, &entry->psq, ifidx);
 		entry->occupied = !!(entry->psq.len);
 	}
@@ -773,7 +770,6 @@ static void brcmf_fws_bus_txq_cleanup(struct brcmf_fws_info *fws,
 	int prec;
 	u32 hslot;
 
-	brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
 	txq = brcmf_bus_gettxq(fws->drvr->bus_if);
 	if (IS_ERR(txq)) {
 		brcmf_dbg(TRACE, "no txq to clean up\n");
@@ -799,7 +795,6 @@ static void brcmf_fws_cleanup(struct brcmf_fws_info *fws, int ifidx)
 	struct brcmf_fws_mac_descriptor *table;
 	bool (*matchfn)(struct sk_buff *, void *) = NULL;
 
-	brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
 	if (fws == NULL)
 		return;
 
@@ -820,7 +815,6 @@ static void brcmf_fws_tim_update(struct brcmf_fws_info *ctx,
 				 struct brcmf_fws_mac_descriptor *entry,
 				 int prec)
 {
-	brcmf_dbg(TRACE, "enter: ea=%pM\n", entry->ea);
 	if (entry->state == BRCMF_FWS_STATE_CLOSE) {
 		/* check delayedQ and suppressQ in one call using bitmap */
 		if (brcmu_pktq_mlen(&entry->psq, 3 << (prec * 2)) == 0)
@@ -877,8 +871,9 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
 
 	entry = &fws->desc.nodes[mac_handle & 0x1F];
 	if (type == BRCMF_FWS_TYPE_MACDESC_DEL) {
-		brcmf_dbg(TRACE, "deleting mac %pM idx %d\n", addr, ifidx);
 		if (entry->occupied) {
+			brcmf_dbg(TRACE, "deleting %s mac %pM\n",
+				  entry->name, addr);
 			brcmf_fws_mac_desc_cleanup(fws, entry, -1);
 			brcmf_fws_clear_mac_descriptor(entry);
 		} else
@@ -886,25 +881,28 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
 		return 0;
 	}
 
-	brcmf_dbg(TRACE,
-		  "add mac %pM handle %u idx %d\n", addr, mac_handle, ifidx);
 	existing = brcmf_fws_mac_descriptor_lookup(fws, addr);
 	if (IS_ERR(existing)) {
 		if (!entry->occupied) {
 			entry->mac_handle = mac_handle;
 			brcmf_fws_init_mac_descriptor(entry, addr, ifidx);
+			brcmf_fws_macdesc_set_name(fws, entry);
 			brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
 					BRCMF_FWS_PSQ_LEN);
+			brcmf_dbg(TRACE, "add %s mac %pM\n", entry->name, addr);
 		} else {
 			fws->stats.mac_update_failed++;
 		}
 	} else {
 		if (entry != existing) {
-			brcmf_dbg(TRACE, "relocate mac\n");
+			brcmf_dbg(TRACE, "copy mac %s\n", existing->name);
 			memcpy(entry, existing,
 			       offsetof(struct brcmf_fws_mac_descriptor, psq));
 			entry->mac_handle = mac_handle;
 			brcmf_fws_clear_mac_descriptor(existing);
+			brcmf_fws_macdesc_set_name(fws, entry);
+			brcmf_dbg(TRACE, "relocate %s mac %pM\n", entry->name,
+				  addr);
 		} else {
 			brcmf_dbg(TRACE, "use existing\n");
 			WARN_ON(entry->mac_handle != mac_handle);
@@ -928,6 +926,8 @@ static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws,
 		return -ESRCH;
 	}
 
+	brcmf_dbg(TRACE, "%s (%d): %s\n", brcmf_fws_get_tlv_name(type), type,
+		  entry->name);
 	/* a state update should wipe old credits? */
 	entry->requested_credit = 0;
 	if (type == BRCMF_FWS_TYPE_MAC_OPEN) {
@@ -950,7 +950,6 @@ static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws,
 
 	ifidx = data[0];
 
-	brcmf_dbg(TRACE, "enter: ifidx=%d\n", ifidx);
 	if (ifidx >= BRCMF_MAX_IFS) {
 		ret = -ERANGE;
 		goto fail;
@@ -962,6 +961,8 @@ static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws,
 		goto fail;
 	}
 
+	brcmf_dbg(TRACE, "%s (%d): %s\n", brcmf_fws_get_tlv_name(type), type,
+		  entry->name);
 	switch (type) {
 	case BRCMF_FWS_TYPE_INTERFACE_OPEN:
 		entry->state = BRCMF_FWS_STATE_OPEN;
@@ -992,6 +993,9 @@ static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type,
 		return -ESRCH;
 	}
 
+	brcmf_dbg(TRACE, "%s (%d): %s cnt %d bmp %d\n",
+		  brcmf_fws_get_tlv_name(type), type, entry->name,
+		  data[0], data[2]);
 	if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT)
 		entry->requested_credit = data[0];
 	else
@@ -1108,7 +1112,7 @@ static int brcmf_fws_enq(struct brcmf_fws_info *fws,
 		return -ENOENT;
 	}
 
-	brcmf_dbg(TRACE, "enter: ea=%pM, qlen=%d\n", entry->ea, entry->psq.len);
+	brcmf_dbg(DATA, "enter: fifo %d skb %p\n", fifo, p);
 	if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED) {
 		prec += 1;
 		qfull_stat = &fws->stats.supprq_full_error;
@@ -1202,7 +1206,7 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
 	}
 	p = NULL;
 done:
-	brcmf_dbg(TRACE, "exit: fifo %d skb %p\n", fifo, p);
+	brcmf_dbg(DATA, "exit: fifo %d skb %p\n", fifo, p);
 	return p;
 }
 
@@ -1221,6 +1225,9 @@ static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
 		entry->suppress_count = brcmu_pktq_mlen(&entry->psq,
 							1 << (fifo * 2 + 1));
 		entry->suppr_transit_count = entry->transit_count;
+		brcmf_dbg(DATA, "suppress %s: supp_cnt %d transit %d\n",
+			  entry->name, entry->suppress_count,
+			  entry->transit_count);
 	}
 
 	entry->generation = genbit;
@@ -1244,17 +1251,17 @@ static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
 }
 
 static int
-brcmf_fws_txstatus_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
+brcmf_fws_txs_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 			   u32 genbit)
 {
 	u32 fifo;
 	int ret;
 	bool remove_from_hanger = true;
 	struct sk_buff *skb;
+	struct brcmf_skbuff_cb *skcb;
 	struct brcmf_fws_mac_descriptor *entry = NULL;
 
-	brcmf_dbg(TRACE, "status: flags=0x%X, hslot=%d\n",
-		  flags, hslot);
+	brcmf_dbg(DATA, "flags %d\n", flags);
 
 	if (flags == BRCMF_FWS_TXSTATUS_DISCARD)
 		fws->stats.txs_discard++;
@@ -1276,12 +1283,16 @@ brcmf_fws_txstatus_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 		return ret;
 	}
 
-	entry = brcmf_skbcb(skb)->mac;
+	skcb = brcmf_skbcb(skb);
+	entry = skcb->mac;
 	if (WARN_ON(!entry)) {
 		brcmu_pkt_buf_free_skb(skb);
 		return -EINVAL;
 	}
 
+	brcmf_dbg(DATA, "%s flags %X htod %X\n", entry->name, skcb->if_flags,
+		  skcb->htod);
+
 	/* pick up the implicit credit from this packet */
 	fifo = brcmf_skb_htod_tag_get_field(skb, FIFO);
 	if (fws->fcmode == BRCMF_FWS_FCMODE_IMPLIED_CREDIT ||
@@ -1311,11 +1322,11 @@ static int brcmf_fws_fifocreditback_indicate(struct brcmf_fws_info *fws,
 		return BRCMF_FWS_RET_OK_NOSCHEDULE;
 	}
 
-	brcmf_dbg(TRACE, "enter: data %pM\n", data);
+	brcmf_dbg(DATA, "enter: data %pM\n", data);
 	for (i = 0; i < BRCMF_FWS_FIFO_COUNT; i++)
 		brcmf_fws_return_credits(fws, i, data[i]);
 
-	brcmf_dbg(INFO, "map: credit %x delay %x\n", fws->fifo_credit_map,
+	brcmf_dbg(DATA, "map: credit %x delay %x\n", fws->fifo_credit_map,
 		  fws->fifo_delay_map);
 	return BRCMF_FWS_RET_OK_SCHEDULE;
 }
@@ -1335,7 +1346,7 @@ static int brcmf_fws_txstatus_indicate(struct brcmf_fws_info *fws, u8 *data)
 	hslot = brcmf_txstatus_get_field(status, HSLOT);
 	genbit = brcmf_txstatus_get_field(status, GENERATION);
 
-	return brcmf_fws_txstatus_process(fws, flags, hslot, genbit);
+	return brcmf_fws_txs_process(fws, flags, hslot, genbit);
 }
 
 static int brcmf_fws_dbg_seqnum_check(struct brcmf_fws_info *fws, u8 *data)
@@ -1343,7 +1354,7 @@ static int brcmf_fws_dbg_seqnum_check(struct brcmf_fws_info *fws, u8 *data)
 	__le32 timestamp;
 
 	memcpy(&timestamp, &data[2], sizeof(timestamp));
-	brcmf_dbg(INFO, "received: seq %d, timestamp %d\n", data[1],
+	brcmf_dbg(CTL, "received: seq %d, timestamp %d\n", data[1],
 		  le32_to_cpu(timestamp));
 	return 0;
 }
@@ -1404,7 +1415,7 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 	s32 status;
 	s32 err;
 
-	brcmf_dbg(TRACE, "enter: ifidx %d, skblen %u, sig %d\n",
+	brcmf_dbg(HDRS, "enter: ifidx %d, skblen %u, sig %d\n",
 		  ifidx, skb->len, signal_len);
 
 	WARN_ON(signal_len > skb->len);
@@ -1438,8 +1449,9 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 		len = signal_data[1];
 		data = signal_data + 2;
 
-		brcmf_dbg(INFO, "tlv type=%d (%s), len=%d, data[0]=%d\n", type,
-			  brcmf_fws_get_tlv_name(type), len, *data);
+		brcmf_dbg(HDRS, "tlv type=%s (%d), len=%d (%d)\n",
+			  brcmf_fws_get_tlv_name(type), type, len,
+			  brcmf_fws_get_tlv_len(fws, type));
 
 		/* abort parsing when length invalid */
 		if (data_len < len + 2)
@@ -1522,8 +1534,6 @@ static int brcmf_fws_hdrpush(struct brcmf_fws_info *fws, struct sk_buff *skb)
 	u8 fillers;
 	__le32 pkttag = cpu_to_le32(brcmf_skbcb(skb)->htod);
 
-	brcmf_dbg(TRACE, "enter: ea=%pM, ifidx=%u, pkttag=0x%08X\n",
-		  entry->ea, entry->interface_id, le32_to_cpu(pkttag));
 	if (entry->send_tim_signal)
 		data_offset += 2 + BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
 
@@ -1708,7 +1718,7 @@ static int brcmf_fws_borrow_credit(struct brcmf_fws_info *fws)
 			fws->fifo_credit[lender_ac]--;
 			if (fws->fifo_credit[lender_ac] == 0)
 				fws->fifo_credit_map &= ~(1 << lender_ac);
-			brcmf_dbg(TRACE, "borrow credit from: %d\n", lender_ac);
+			brcmf_dbg(DATA, "borrow credit from: %d\n", lender_ac);
 			return 0;
 		}
 	}
@@ -1721,12 +1731,8 @@ static int brcmf_fws_consume_credit(struct brcmf_fws_info *fws, int fifo,
 	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
 	int *credit = &fws->fifo_credit[fifo];
 
-	brcmf_dbg(TRACE, "enter: ac=%d, credits=%d\n", fifo, *credit);
-
-	if (!brcmf_fws_macdesc_use_credit(entry, skb)) {
-		brcmf_dbg(TRACE, "exit: no creditcheck set\n");
+	if (!brcmf_fws_macdesc_use_credit(entry, skb))
 		return 0;
-	}
 
 	if (fifo != BRCMF_FWS_FIFO_AC_BE)
 		fws->borrow_defer_timestamp = jiffies +
@@ -1738,13 +1744,13 @@ static int brcmf_fws_consume_credit(struct brcmf_fws_info *fws, int fifo,
 		    brcmf_fws_borrow_credit(fws) == 0)
 			return 0;
 
-		brcmf_dbg(TRACE, "exit: ac=%d, credits depleted\n", fifo);
+		brcmf_dbg(DATA, "exit: ac=%d, credits depleted\n", fifo);
 		return -ENAVAIL;
 	}
 	(*credit)--;
 	if (!(*credit))
 		fws->fifo_credit_map &= ~(1 << fifo);
-	brcmf_dbg(TRACE, "exit: ac=%d, credits=%d\n", fifo, *credit);
+	brcmf_dbg(DATA, "exit: ac=%d, credits=%d\n", fifo, *credit);
 	return 0;
 }
 
@@ -1766,6 +1772,8 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 		goto rollback;
 	}
 
+	brcmf_dbg(DATA, "%s flags %X htod %X\n", entry->name, skcb->if_flags,
+		  skcb->htod);
 	rc = brcmf_bus_txdata(bus, skb);
 	if (rc < 0)
 		goto rollback;
@@ -1818,8 +1826,8 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 	if (!multicast)
 		fifo = brcmf_fws_prio2fifo[skb->priority];
 
-	brcmf_dbg(TRACE, "ea=%pM, multi=%d, fifo=%d\n", eh->h_dest,
-		  multicast, fifo);
+	brcmf_dbg(DATA, "%s mac %pM multi %d fifo %d\n", skcb->mac->name,
+		  eh->h_dest, multicast, fifo);
 
 	brcmf_fws_lock(drvr, flags);
 	if (skcb->mac->suppressed ||
@@ -1854,16 +1862,16 @@ void brcmf_fws_add_interface(struct brcmf_if *ifp)
 	struct brcmf_fws_info *fws = ifp->drvr->fws;
 	struct brcmf_fws_mac_descriptor *entry;
 
-	brcmf_dbg(TRACE, "enter: idx=%d, mac=%pM\n",
-		  ifp->bssidx, ifp->mac_addr);
 	if (!ifp->ndev || !ifp->drvr->fw_signals)
 		return;
 
 	entry = &fws->desc.iface[ifp->ifidx];
 	ifp->fws_desc = entry;
 	brcmf_fws_init_mac_descriptor(entry, ifp->mac_addr, ifp->ifidx);
+	brcmf_fws_macdesc_set_name(fws, entry);
 	brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
 			BRCMF_FWS_PSQ_LEN);
+	brcmf_dbg(TRACE, "added %s\n", entry->name);
 }
 
 void brcmf_fws_del_interface(struct brcmf_if *ifp)
@@ -1871,12 +1879,12 @@ void brcmf_fws_del_interface(struct brcmf_if *ifp)
 	struct brcmf_fws_mac_descriptor *entry = ifp->fws_desc;
 	ulong flags;
 
-	brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx);
 	if (!entry)
 		return;
 
 	brcmf_fws_lock(ifp->drvr, flags);
 	ifp->fws_desc = NULL;
+	brcmf_dbg(TRACE, "deleting %s\n", entry->name);
 	brcmf_fws_clear_mac_descriptor(entry);
 	brcmf_fws_cleanup(ifp->drvr->fws, ifp->ifidx);
 	brcmf_fws_unlock(ifp->drvr, flags);
@@ -1891,12 +1899,9 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 
 	fws = container_of(worker, struct brcmf_fws_info, fws_dequeue_work);
 
-	brcmf_dbg(TRACE, "enter: fws=%p\n", fws);
 	brcmf_fws_lock(fws->drvr, flags);
 	for (fifo = NL80211_NUM_ACS; fifo >= 0 && !fws->bus_flow_blocked;
 	     fifo--) {
-		brcmf_dbg(TRACE, "fifo %d credit %d\n", fifo,
-			  fws->fifo_credit[fifo]);
 		while (fws->fifo_credit[fifo]) {
 			skb = brcmf_fws_deq(fws, fifo);
 			if (!skb)
@@ -1980,14 +1985,14 @@ int brcmf_fws_init(struct brcmf_pub *drvr)
 
 	brcmf_fws_hanger_init(&drvr->fws->hanger);
 	brcmf_fws_init_mac_descriptor(&drvr->fws->desc.other, NULL, 0);
+	brcmf_fws_macdesc_set_name(drvr->fws, &drvr->fws->desc.other);
 	brcmu_pktq_init(&drvr->fws->desc.other.psq, BRCMF_FWS_PSQ_PREC_COUNT,
 			BRCMF_FWS_PSQ_LEN);
 
 	/* create debugfs file for statistics */
 	brcmf_debugfs_create_fws_stats(drvr, &drvr->fws->stats);
 
-	/* TODO: remove upon feature delivery */
-	brcmf_err("%s bdcv2 tlv signaling [%x]\n",
+	brcmf_dbg(INFO, "%s bdcv2 tlv signaling [%x]\n",
 		  drvr->fw_signals ? "enabled" : "disabled", tlv);
 	return 0;
 
@@ -2029,7 +2034,6 @@ bool brcmf_fws_fc_active(struct brcmf_fws_info *fws)
 	if (!fws)
 		return false;
 
-	brcmf_dbg(TRACE, "enter: mode=%d\n", fws->fcmode);
 	return fws->fcmode != BRCMF_FWS_FCMODE_NONE;
 }
 
@@ -2039,7 +2043,7 @@ void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
 	int fifo;
 
 	brcmf_fws_lock(fws->drvr, flags);
-	brcmf_fws_txstatus_process(fws, BRCMF_FWS_TXSTATUS_FW_TOSSED,
+	brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_FW_TOSSED,
 				   brcmf_skb_htod_tag_get_field(skb, HSLOT), 0);
 	/* the packet never reached firmware so reclaim credit */
 	if (fws->fcmode == BRCMF_FWS_FCMODE_EXPLICIT_CREDIT) {
-- 
cgit v0.10.2


From ce17194ead199bec9f4721bdcffa624d7564845d Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:52 +0200
Subject: brcmfmac: On bus flow control use fw signalling or netif.

Currently on a bus flow control both fws is informed and netif queue
gets closed. In case of fw signalling enabled, let the flow control
be handled by fw signalling only.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index 9450d10..63cadf6 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -269,11 +269,14 @@ void brcmf_txflowblock(struct device *dev, bool state)
 
 	brcmf_dbg(TRACE, "Enter\n");
 
-	brcmf_fws_bus_blocked(drvr, state);
-
-	for (i = 0; i < BRCMF_MAX_IFS; i++)
-		brcmf_txflowblock_if(drvr->iflist[i],
-				     BRCMF_NETIF_STOP_REASON_BLOCK_BUS, state);
+	if (brcmf_fws_fc_active(drvr->fws)) {
+		brcmf_fws_bus_blocked(drvr, state);
+	} else {
+		for (i = 0; i < BRCMF_MAX_IFS; i++)
+			brcmf_txflowblock_if(drvr->iflist[i],
+					     BRCMF_NETIF_STOP_REASON_BLOCK_BUS,
+					     state);
+	}
 }
 
 void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
-- 
cgit v0.10.2


From be4910adf1817d357bfb20d28e0f8b6b0fecd945 Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:53 +0200
Subject: brcmfmac: For FW signalling it is necessary to track gen bit.

Store gen bit on suppressed packet per entry and use latest
stored version for each packet which gets transmitted to fw.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 73e3e1d..682ac62 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -246,7 +246,7 @@ struct brcmf_skbuff_cb {
 #define BRCMF_SKB_HTOD_TAG_HSLOT_MASK			0x00ffff00
 #define BRCMF_SKB_HTOD_TAG_HSLOT_SHIFT			8
 #define BRCMF_SKB_HTOD_TAG_FREERUN_MASK			0x000000ff
-#define BRCMF_SKB_HTOD_TAG_FREERUN_SHIFT			0
+#define BRCMF_SKB_HTOD_TAG_FREERUN_SHIFT		0
 
 #define brcmf_skb_htod_tag_set_field(skb, field, value) \
 	brcmu_maskset32(&(brcmf_skbcb(skb)->htod), \
@@ -384,12 +384,10 @@ enum brcmf_fws_hanger_item_state {
  * struct brcmf_fws_hanger_item - single entry for tx pending packet.
  *
  * @state: entry is either free or occupied.
- * @gen: generation.
  * @pkt: packet itself.
  */
 struct brcmf_fws_hanger_item {
 	enum brcmf_fws_hanger_item_state state;
-	u8 gen;
 	struct sk_buff *pkt;
 };
 
@@ -537,7 +535,7 @@ done:
 }
 
 static int brcmf_fws_hanger_pushpkt(struct brcmf_fws_hanger *h,
-					   struct sk_buff *pkt, u32 slot_id)
+				    struct sk_buff *pkt, u32 slot_id)
 {
 	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
 		return -ENOENT;
@@ -571,20 +569,17 @@ static int brcmf_fws_hanger_poppkt(struct brcmf_fws_hanger *h,
 	if (remove_item) {
 		h->items[slot_id].state = BRCMF_FWS_HANGER_ITEM_STATE_FREE;
 		h->items[slot_id].pkt = NULL;
-		h->items[slot_id].gen = 0xff;
 		h->popped++;
 	}
 	return 0;
 }
 
 static int brcmf_fws_hanger_mark_suppressed(struct brcmf_fws_hanger *h,
-						   u32 slot_id, u8 gen)
+					    u32 slot_id)
 {
 	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
 		return -ENOENT;
 
-	h->items[slot_id].gen = gen;
-
 	if (h->items[slot_id].state != BRCMF_FWS_HANGER_ITEM_STATE_INUSE) {
 		brcmf_err("entry not in use\n");
 		return -EINVAL;
@@ -594,24 +589,6 @@ static int brcmf_fws_hanger_mark_suppressed(struct brcmf_fws_hanger *h,
 	return 0;
 }
 
-static int brcmf_fws_hanger_get_genbit(struct brcmf_fws_hanger *hanger,
-					      struct sk_buff *pkt, u32 slot_id,
-					      int *gen)
-{
-	*gen = 0xff;
-
-	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
-		return -ENOENT;
-
-	if (hanger->items[slot_id].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
-		brcmf_err("slot not in use\n");
-		return -EINVAL;
-	}
-
-	*gen = hanger->items[slot_id].gen;
-	return 0;
-}
-
 static void brcmf_fws_hanger_cleanup(struct brcmf_fws_info *fws,
 				     bool (*fn)(struct sk_buff *, void *),
 				     int ifidx)
@@ -838,9 +815,6 @@ brcmf_fws_flow_control_check(struct brcmf_fws_info *fws, struct pktq *pq,
 	if (WARN_ON(!ifp))
 		return;
 
-	brcmf_dbg(TRACE,
-		  "enter: bssidx=%d, ifidx=%d\n", ifp->bssidx, ifp->ifidx);
-
 	if ((ifp->netif_stop & BRCMF_NETIF_STOP_REASON_FWS_FC) &&
 	    pq->len <= BRCMF_FWS_FLOWCONTROL_LOWATER)
 		brcmf_txflowblock_if(ifp,
@@ -1220,7 +1194,7 @@ static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
 	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
 
 	/* this packet was suppressed */
-	if (!entry->suppressed || entry->generation != genbit) {
+	if (!entry->suppressed) {
 		entry->suppressed = true;
 		entry->suppress_count = brcmu_pktq_mlen(&entry->psq,
 							1 << (fifo * 2 + 1));
@@ -1242,8 +1216,7 @@ static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
 		 * Mark suppressed to avoid a double free during
 		 * wlfc cleanup
 		 */
-		brcmf_fws_hanger_mark_suppressed(&fws->hanger, hslot,
-						 genbit);
+		brcmf_fws_hanger_mark_suppressed(&fws->hanger, hslot);
 		entry->suppress_count++;
 	}
 
@@ -1573,15 +1546,34 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(p);
 	struct brcmf_fws_mac_descriptor *entry = skcb->mac;
 	int rc = 0;
-	bool header_needed;
+	bool first_time;
 	int hslot = BRCMF_FWS_HANGER_MAXITEMS;
 	u8 free_ctr;
 	u8 ifidx;
 	u8 flags;
 
-	header_needed = skcb->state != BRCMF_FWS_SKBSTATE_SUPPRESSED;
+	first_time = skcb->state != BRCMF_FWS_SKBSTATE_SUPPRESSED;
 
-	if (header_needed) {
+	if (!first_time) {
+		rc = brcmf_proto_hdrpull(fws->drvr, false, &ifidx, p);
+		if (rc) {
+			brcmf_err("hdrpull failed\n");
+			return rc;
+		}
+	}
+	brcmf_skb_if_flags_set_field(p, TRANSMIT, 1);
+	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
+	brcmf_skb_htod_tag_set_field(p, GENERATION, entry->generation);
+	flags = BRCMF_FWS_HTOD_FLAG_PKTFROMHOST;
+	if (!(skcb->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)) {
+		/*
+		 * Indicate that this packet is being sent in response to an
+		 * explicit request from the firmware side.
+		 */
+		flags |= BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED;
+	}
+	brcmf_skb_htod_tag_set_field(p, FLAGS, flags);
+	if (first_time) {
 		/* obtaining free slot may fail, but that will be caught
 		 * by the hanger push. This assures the packet has a BDC
 		 * header upon return.
@@ -1590,40 +1582,14 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 		free_ctr = entry->seq[fifo];
 		brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
 		brcmf_skb_htod_tag_set_field(p, FREERUN, free_ctr);
-		brcmf_skb_htod_tag_set_field(p, GENERATION, 1);
 		entry->transit_count++;
 	}
-	brcmf_skb_if_flags_set_field(p, TRANSMIT, 1);
-	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
 
-	flags = BRCMF_FWS_HTOD_FLAG_PKTFROMHOST;
-	if (!(skcb->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)) {
-		/*
-		Indicate that this packet is being sent in response to an
-		explicit request from the firmware side.
-		*/
-		flags |= BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED;
-	}
-	brcmf_skb_htod_tag_set_field(p, FLAGS, flags);
-	if (header_needed) {
-		brcmf_fws_hdrpush(fws, p);
+	brcmf_fws_hdrpush(fws, p);
+	if (first_time) {
 		rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
 		if (rc)
 			brcmf_err("hanger push failed: rc=%d\n", rc);
-	} else {
-		int gen;
-
-		/* remove old header */
-		rc = brcmf_proto_hdrpull(fws->drvr, false, &ifidx, p);
-		if (rc == 0) {
-			hslot = brcmf_skb_htod_tag_get_field(p, HSLOT);
-			brcmf_fws_hanger_get_genbit(&fws->hanger, p,
-						    hslot, &gen);
-			brcmf_skb_htod_tag_set_field(p, GENERATION, gen);
-
-			/* push new header */
-			brcmf_fws_hdrpush(fws, p);
-		}
 	}
 
 	return rc;
-- 
cgit v0.10.2


From afc3bbfcd62efe87041571369b2d12beb00f4bc3 Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:54 +0200
Subject: brcmfmac: Correct creditmap when credit borrowing is active.

When credit borrowing is active the BE credits have been depleted,
however the worker should still be scheduled. In case of credit
borrowing correct credit map to make sure worker remains active.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 682ac62..abba7f7 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1020,6 +1020,8 @@ static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
 	if (!credits)
 		return;
 
+	fws->fifo_credit_map |= 1 << fifo;
+
 	if ((fifo == BRCMF_FWS_FIFO_AC_BE) &&
 	    (fws->credits_borrowed[0])) {
 		for (lender_ac = BRCMF_FWS_FIFO_AC_VO; lender_ac >= 0;
@@ -1041,7 +1043,6 @@ static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
 		}
 	}
 
-	fws->fifo_credit_map |= 1 << fifo;
 	fws->fifo_credit[fifo] += credits;
 }
 
@@ -1675,8 +1676,10 @@ static int brcmf_fws_borrow_credit(struct brcmf_fws_info *fws)
 {
 	int lender_ac;
 
-	if (time_after(fws->borrow_defer_timestamp, jiffies))
+	if (time_after(fws->borrow_defer_timestamp, jiffies)) {
+		fws->fifo_credit_map &= ~(1 << BRCMF_FWS_FIFO_AC_BE);
 		return -ENAVAIL;
+	}
 
 	for (lender_ac = 0; lender_ac <= BRCMF_FWS_FIFO_AC_VO; lender_ac++) {
 		if (fws->fifo_credit[lender_ac]) {
@@ -1684,10 +1687,12 @@ static int brcmf_fws_borrow_credit(struct brcmf_fws_info *fws)
 			fws->fifo_credit[lender_ac]--;
 			if (fws->fifo_credit[lender_ac] == 0)
 				fws->fifo_credit_map &= ~(1 << lender_ac);
+			fws->fifo_credit_map |= (1 << BRCMF_FWS_FIFO_AC_BE);
 			brcmf_dbg(DATA, "borrow credit from: %d\n", lender_ac);
 			return 0;
 		}
 	}
+	fws->fifo_credit_map &= ~(1 << BRCMF_FWS_FIFO_AC_BE);
 	return -ENAVAIL;
 }
 
-- 
cgit v0.10.2


From 5cd51c2bad56625e4447739426845cfa37fc11a5 Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:56 +0200
Subject: brcmfmac: Find correct MAC descriptor in case of TDLS.

In case of TDLS find the correct MAC descriptor for fw signalling
data. In case of TDLS each destination gets its own entry. This
was not handled correctly for P2P client.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index abba7f7..876ea42 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -677,26 +677,21 @@ brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, struct brcmf_if *ifp,
 {
 	struct brcmf_fws_mac_descriptor *entry = &fws->desc.other;
 	bool multicast;
-	enum nl80211_iftype iftype;
 
 	multicast = is_multicast_ether_addr(da);
-	iftype = brcmf_cfg80211_get_iftype(ifp);
 
-	/* Multicast destination and P2P clients get the interface entry.
-	 * STA gets the interface entry if there is no exact match. For
-	 * example, TDLS destinations have their own entry.
+	/* Multicast destination, STA and P2P clients get the interface entry.
+	 * STA/GC gets the Mac Entry for TDLS destinations, TDLS destinations
+	 * have their own entry.
 	 */
-	entry = NULL;
-	if ((multicast || iftype == NL80211_IFTYPE_STATION ||
-	     iftype == NL80211_IFTYPE_P2P_CLIENT) && ifp->fws_desc)
+	if (multicast && ifp->fws_desc) {
 		entry = ifp->fws_desc;
-
-	if (entry != NULL && iftype != NL80211_IFTYPE_STATION)
 		goto done;
+	}
 
 	entry = brcmf_fws_mac_descriptor_lookup(fws, da);
 	if (IS_ERR(entry))
-		entry = &fws->desc.other;
+		entry = ifp->fws_desc;
 
 done:
 	return entry;
-- 
cgit v0.10.2


From 402e3ba20285f0ebe4f4bebdecb7ab24999f3626 Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:57 +0200
Subject: brcmfmac: fix invalid ifp lookup in firmware-signalling

The destination entries for firmware-signalled flow control have
the interface id stored. This needs to be translated to bsscfg
index when looking up the ifp object for the interface.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 876ea42..5f38742 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -805,7 +805,7 @@ static void
 brcmf_fws_flow_control_check(struct brcmf_fws_info *fws, struct pktq *pq,
 			     u8 if_id)
 {
-	struct brcmf_if *ifp = fws->drvr->iflist[if_id];
+	struct brcmf_if *ifp = fws->drvr->iflist[!if_id ? 0 : if_id + 1];
 
 	if (WARN_ON(!ifp))
 		return;
-- 
cgit v0.10.2


From 0d24b0eade7d4b6a5d06fe02645449b1fd0f8e17 Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:58 +0200
Subject: brcmfmac: Accept only first creditmap event.

During P2P testing it turned out that the firmware sents multiple
multiple creditmap event messages. Only the first message from the
firmware should be processed. Otherwise the firmware-signalled flow
control can run haywire when it has packets outstanding in firmware.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 5f38742..bba4ff0 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -434,6 +434,7 @@ struct brcmf_fws_info {
 	u32 fifo_delay_map;
 	unsigned long borrow_defer_timestamp;
 	bool bus_flow_blocked;
+	bool creditmap_received;
 };
 
 /*
@@ -1356,6 +1357,10 @@ static int brcmf_fws_notify_credit_map(struct brcmf_if *ifp,
 		brcmf_err("event payload too small (%d)\n", e->datalen);
 		return -EINVAL;
 	}
+	if (fws->creditmap_received)
+		return 0;
+
+	fws->creditmap_received = true;
 
 	brcmf_dbg(TRACE, "enter: credits %pM\n", credits);
 	brcmf_fws_lock(ifp->drvr, flags);
-- 
cgit v0.10.2


From 2747e5f7f83d215cbc9bdb66f69411ff3dedeeee Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:17:59 +0200
Subject: brcmfmac: Signalling header push and pull on logic places.

Currently suppressed packets get enque-ed with header which
then gets pulled before transmit. It is more logical and clean
to pull the header on return and push it unconditionally on xmit.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index bba4ff0..6255312 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1187,6 +1187,7 @@ static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
 	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
 	u32 hslot;
 	int ret;
+	u8 ifidx;
 
 	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
 
@@ -1203,9 +1204,12 @@ static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
 
 	entry->generation = genbit;
 
-	ret = brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_SUPPRESSED, fifo, skb);
+	ret = brcmf_proto_hdrpull(fws->drvr, false, &ifidx, skb);
+	if (ret == 0)
+		ret = brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_SUPPRESSED, fifo,
+				    skb);
 	if (ret != 0) {
-		/* suppress q is full, drop this packet */
+		/* suppress q is full or hdrpull failed, drop this packet */
 		brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &skb,
 					true);
 	} else {
@@ -1550,18 +1554,10 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 	bool first_time;
 	int hslot = BRCMF_FWS_HANGER_MAXITEMS;
 	u8 free_ctr;
-	u8 ifidx;
 	u8 flags;
 
 	first_time = skcb->state != BRCMF_FWS_SKBSTATE_SUPPRESSED;
 
-	if (!first_time) {
-		rc = brcmf_proto_hdrpull(fws->drvr, false, &ifidx, p);
-		if (rc) {
-			brcmf_err("hdrpull failed\n");
-			return rc;
-		}
-	}
 	brcmf_skb_if_flags_set_field(p, TRANSMIT, 1);
 	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
 	brcmf_skb_htod_tag_set_field(p, GENERATION, entry->generation);
@@ -1584,15 +1580,14 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 		brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
 		brcmf_skb_htod_tag_set_field(p, FREERUN, free_ctr);
 		entry->transit_count++;
-	}
-
-	brcmf_fws_hdrpush(fws, p);
-	if (first_time) {
 		rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
 		if (rc)
 			brcmf_err("hanger push failed: rc=%d\n", rc);
 	}
 
+	if (rc == 0)
+		brcmf_fws_hdrpush(fws, p);
+
 	return rc;
 }
 
@@ -1613,7 +1608,6 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
 	struct sk_buff *pktout;
 	int rc = 0;
 	int hslot;
-	u8 ifidx;
 
 	state = brcmf_skbcb(skb)->state;
 	entry = brcmf_skbcb(skb)->mac;
@@ -1630,17 +1624,6 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
 		} else {
 			hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
 
-			/* remove header first */
-			rc = brcmf_proto_hdrpull(fws->drvr, false, &ifidx, skb);
-			if (rc) {
-				brcmf_err("header removal failed\n");
-				/* free the hanger slot */
-				brcmf_fws_hanger_poppkt(&fws->hanger, hslot,
-							&pktout, true);
-				rc = -EINVAL;
-				goto fail;
-			}
-
 			/* delay-q packets are going to delay-q */
 			pktout = brcmu_pktq_penq_head(&entry->psq,
 						      2 * fifo, skb);
@@ -1661,8 +1644,6 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
 		rc = -ENOENT;
 	}
 
-
-fail:
 	if (rc) {
 		brcmf_fws_bustxfail(fws, skb);
 		fws->stats.rollback_failed++;
@@ -1732,6 +1713,7 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 	struct brcmf_fws_mac_descriptor *entry;
 	struct brcmf_bus *bus = fws->drvr->bus_if;
 	int rc;
+	u8 ifidx;
 
 	entry = skcb->mac;
 	if (IS_ERR(entry))
@@ -1746,8 +1728,10 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 	brcmf_dbg(DATA, "%s flags %X htod %X\n", entry->name, skcb->if_flags,
 		  skcb->htod);
 	rc = brcmf_bus_txdata(bus, skb);
-	if (rc < 0)
+	if (rc < 0) {
+		brcmf_proto_hdrpull(fws->drvr, false, &ifidx, skb);
 		goto rollback;
+	}
 
 	entry->seq[fifo]++;
 	fws->stats.pkt2bus++;
-- 
cgit v0.10.2


From eb2410cdd92e5232e6b7e8d95cb60b9e0cea434d Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:18:00 +0200
Subject: brcmfmac: Fix endless loop when brcmf_fws_commit_skb fails.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 6255312..881c0b2 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1879,7 +1879,8 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 					brcmf_fws_return_credits(fws, fifo, 1);
 					break;
 				}
-				brcmf_fws_commit_skb(fws, fifo, skb);
+				if (brcmf_fws_commit_skb(fws, fifo, skb))
+					break;
 				if (fws->bus_flow_blocked)
 					break;
 			}
-- 
cgit v0.10.2


From 8c5140f63a7aa01e6836fc9eace201b0a3f1475f Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:18:01 +0200
Subject: brcmfmac: Simplify counting transit count.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 881c0b2..dc40eec 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -357,7 +357,6 @@ struct brcmf_fws_mac_descriptor {
 	u8 seq[BRCMF_FWS_FIFO_COUNT];
 	struct pktq psq;
 	int transit_count;
-	int suppress_count;
 	int suppr_transit_count;
 	bool send_tim_signal;
 	u8 traffic_pending_bmp;
@@ -1100,8 +1099,6 @@ static int brcmf_fws_enq(struct brcmf_fws_info *fws,
 
 	/* update the sk_buff state */
 	brcmf_skbcb(p)->state = state;
-	if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED)
-		entry->suppress_count++;
 
 	/*
 	 * A packet has been pushed so update traffic
@@ -1141,9 +1138,8 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
 		p = brcmu_pktq_mdeq(&entry->psq, pmsk << (fifo * 2), &prec_out);
 		if (p == NULL) {
 			if (entry->suppressed) {
-				if (entry->suppr_transit_count >
-				    entry->suppress_count)
-					return NULL;
+				if (entry->suppr_transit_count)
+					continue;
 				entry->suppressed = false;
 				p = brcmu_pktq_mdeq(&entry->psq,
 						    1 << (fifo * 2), &prec_out);
@@ -1194,12 +1190,9 @@ static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
 	/* this packet was suppressed */
 	if (!entry->suppressed) {
 		entry->suppressed = true;
-		entry->suppress_count = brcmu_pktq_mlen(&entry->psq,
-							1 << (fifo * 2 + 1));
 		entry->suppr_transit_count = entry->transit_count;
-		brcmf_dbg(DATA, "suppress %s: supp_cnt %d transit %d\n",
-			  entry->name, entry->suppress_count,
-			  entry->transit_count);
+		brcmf_dbg(DATA, "suppress %s: transit %d\n",
+			  entry->name, entry->transit_count);
 	}
 
 	entry->generation = genbit;
@@ -1218,7 +1211,6 @@ static int brcmf_fws_txstatus_suppressed(struct brcmf_fws_info *fws, int fifo,
 		 * wlfc cleanup
 		 */
 		brcmf_fws_hanger_mark_suppressed(&fws->hanger, hslot);
-		entry->suppress_count++;
 	}
 
 	return ret;
@@ -1263,6 +1255,9 @@ brcmf_fws_txs_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 		brcmu_pkt_buf_free_skb(skb);
 		return -EINVAL;
 	}
+	entry->transit_count--;
+	if (entry->suppressed && entry->suppr_transit_count)
+		entry->suppr_transit_count--;
 
 	brcmf_dbg(DATA, "%s flags %X htod %X\n", entry->name, skcb->if_flags,
 		  skcb->htod);
@@ -1276,13 +1271,9 @@ brcmf_fws_txs_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 	if (!remove_from_hanger)
 		ret = brcmf_fws_txstatus_suppressed(fws, fifo, skb, genbit);
 
-	if (remove_from_hanger || ret) {
-		entry->transit_count--;
-		if (entry->suppressed)
-			entry->suppr_transit_count--;
-
+	if (remove_from_hanger || ret)
 		brcmf_txfinalize(fws->drvr, skb, true);
-	}
+
 	return 0;
 }
 
@@ -1579,7 +1570,6 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 		free_ctr = entry->seq[fifo];
 		brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
 		brcmf_skb_htod_tag_set_field(p, FREERUN, free_ctr);
-		entry->transit_count++;
 		rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
 		if (rc)
 			brcmf_err("hanger push failed: rc=%d\n", rc);
@@ -1733,6 +1723,9 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 		goto rollback;
 	}
 
+	entry->transit_count++;
+	if (entry->suppressed)
+		entry->suppr_transit_count++;
 	entry->seq[fifo]++;
 	fws->stats.pkt2bus++;
 	if (brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) {
-- 
cgit v0.10.2


From cf3a6872b981037e29517b3e61e199bde14abc65 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:18:02 +0200
Subject: brcmfmac: fix send_pkts statistic counter in firmware-signalling

The statistic counter send_pkts was wrongly counted conditionally.
Correcting the mistake.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index dc40eec..04aa4b2 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1728,10 +1728,9 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 		entry->suppr_transit_count++;
 	entry->seq[fifo]++;
 	fws->stats.pkt2bus++;
-	if (brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK) {
-		fws->stats.send_pkts[fifo]++;
+	fws->stats.send_pkts[fifo]++;
+	if (brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
 		fws->stats.fifo_credits_sent[fifo]++;
-	}
 
 	return rc;
 
-- 
cgit v0.10.2


From ea0737d6e24b44b632e9094108bb987b0338ea74 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:18:05 +0200
Subject: brcmfmac: add trace event for capturing BDC header

The BDC header contains PropTx TLV signals that are useful to capture
for debugging. This event captures the header and tlv's in binary
form. This can be post-processed using trace-cmd plugin.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
index 59c77aa..dd85401 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_cdc.c
@@ -30,6 +30,7 @@
 #include "dhd_bus.h"
 #include "fwsignal.h"
 #include "dhd_dbg.h"
+#include "tracepoint.h"
 
 struct brcmf_proto_cdc_dcmd {
 	__le32 cmd;	/* dongle command value */
@@ -292,6 +293,7 @@ void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx, u8 offset,
 	h->flags2 = 0;
 	h->data_offset = offset;
 	BDC_SET_IF_IDX(h, ifidx);
+	trace_brcmf_bdchdr(pktbuf->data);
 }
 
 int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
@@ -309,6 +311,7 @@ int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
 		return -EBADE;
 	}
 
+	trace_brcmf_bdchdr(pktbuf->data);
 	h = (struct brcmf_proto_bdc_header *)(pktbuf->data);
 
 	*ifidx = BDC_GET_IF_IDX(h);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
index 9df1f7a..bc29171 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
@@ -87,6 +87,27 @@ TRACE_EVENT(brcmf_hexdump,
 	TP_printk("hexdump [length=%lu]", __entry->len)
 );
 
+TRACE_EVENT(brcmf_bdchdr,
+	TP_PROTO(void *data),
+	TP_ARGS(data),
+	TP_STRUCT__entry(
+		__field(u8, flags)
+		__field(u8, prio)
+		__field(u8, flags2)
+		__field(u32, siglen)
+		__dynamic_array(u8, signal, *((u8 *)data + 3) * 4)
+	),
+	TP_fast_assign(
+		__entry->flags = *(u8 *)data;
+		__entry->prio = *((u8 *)data + 1);
+		__entry->flags2 = *((u8 *)data + 2);
+		__entry->siglen = *((u8 *)data + 3) * 4;
+		memcpy(__get_dynamic_array(signal),
+		       (u8 *)data + 4, __entry->siglen);
+	),
+	TP_printk("bdc: prio=%d siglen=%d", __entry->prio, __entry->siglen)
+);
+
 #ifdef CONFIG_BRCM_TRACING
 
 #undef TRACE_INCLUDE_PATH
-- 
cgit v0.10.2


From 672774f124dd07b2aaa1c8fdd56d98d786434fbb Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:18:06 +0200
Subject: brcmfmac: increment hard_header_len instead of overriding

In brcmf_net_attach() the hard_header_len is set to sum of ETH_HLEN
and the headroom needed by the bus interface. Better use increment
instead as hard_header_len is already initialized upon alloc_netdev().

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index 63cadf6..2982886 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -640,7 +640,7 @@ int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked)
 	/* set appropriate operations */
 	ndev->netdev_ops = &brcmf_netdev_ops_pri;
 
-	ndev->hard_header_len = ETH_HLEN + drvr->hdrlen;
+	ndev->hard_header_len += drvr->hdrlen;
 	ndev->ethtool_ops = &brcmf_ethtool_ops;
 
 	drvr->rxsz = ndev->mtu + ndev->hard_header_len +
-- 
cgit v0.10.2


From c7773fc1ef55b7d1ed44a27900b86dc28351dec4 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:49:32 +0200
Subject: brcmfmac: Sent TIM information in case of data available.

When data is available and fw signalling is enabled then TIM
information should be sent to firmware. If it can piggy back
on existing packet then do that otherwise create dummy packet
to get information out.

Cc: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 04aa4b2..ff92060 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -157,11 +157,13 @@ static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id)
  * @BRCMF_FWS_SKBSTATE_NEW: sk_buff is newly arrived in the driver.
  * @BRCMF_FWS_SKBSTATE_DELAYED: sk_buff had to wait on queue.
  * @BRCMF_FWS_SKBSTATE_SUPPRESSED: sk_buff has been suppressed by firmware.
+ * @BRCMF_FWS_SKBSTATE_TIM: allocated for TIM update info.
  */
 enum brcmf_fws_skb_state {
 	BRCMF_FWS_SKBSTATE_NEW,
 	BRCMF_FWS_SKBSTATE_DELAYED,
-	BRCMF_FWS_SKBSTATE_SUPPRESSED
+	BRCMF_FWS_SKBSTATE_SUPPRESSED,
+	BRCMF_FWS_SKBSTATE_TIM
 };
 
 /**
@@ -278,6 +280,7 @@ struct brcmf_skbuff_cb {
 /**
  * enum brcmf_fws_fifo - fifo indices used by dongle firmware.
  *
+ * @BRCMF_FWS_FIFO_FIRST: first fifo, ie. background.
  * @BRCMF_FWS_FIFO_AC_BK: fifo for background traffic.
  * @BRCMF_FWS_FIFO_AC_BE: fifo for best-effort traffic.
  * @BRCMF_FWS_FIFO_AC_VI: fifo for video traffic.
@@ -287,7 +290,8 @@ struct brcmf_skbuff_cb {
  * @BRCMF_FWS_FIFO_COUNT: number of fifos.
  */
 enum brcmf_fws_fifo {
-	BRCMF_FWS_FIFO_AC_BK,
+	BRCMF_FWS_FIFO_FIRST,
+	BRCMF_FWS_FIFO_AC_BK = BRCMF_FWS_FIFO_FIRST,
 	BRCMF_FWS_FIFO_AC_BE,
 	BRCMF_FWS_FIFO_AC_VI,
 	BRCMF_FWS_FIFO_AC_VO,
@@ -783,22 +787,95 @@ static void brcmf_fws_cleanup(struct brcmf_fws_info *fws, int ifidx)
 	brcmf_fws_hanger_cleanup(fws, matchfn, ifidx);
 }
 
-static void brcmf_fws_tim_update(struct brcmf_fws_info *ctx,
-				 struct brcmf_fws_mac_descriptor *entry,
-				 int prec)
+static int brcmf_fws_hdrpush(struct brcmf_fws_info *fws, struct sk_buff *skb)
 {
-	if (entry->state == BRCMF_FWS_STATE_CLOSE) {
-		/* check delayedQ and suppressQ in one call using bitmap */
-		if (brcmu_pktq_mlen(&entry->psq, 3 << (prec * 2)) == 0)
-			entry->traffic_pending_bmp =
-				entry->traffic_pending_bmp & ~NBITVAL(prec);
-		else
-			entry->traffic_pending_bmp =
-				entry->traffic_pending_bmp | NBITVAL(prec);
+	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
+	u8 *wlh;
+	u16 data_offset = 0;
+	u8 fillers;
+	__le32 pkttag = cpu_to_le32(brcmf_skbcb(skb)->htod);
+
+	brcmf_dbg(TRACE, "enter: ea=%pM, ifidx=%u (%u), pkttag=0x%08X, hslot=%d\n",
+		  entry->ea, entry->interface_id,
+		  brcmf_skb_if_flags_get_field(skb, INDEX),
+		  le32_to_cpu(pkttag), (le32_to_cpu(pkttag) >> 8) & 0xffff);
+	if (entry->send_tim_signal)
+		data_offset += 2 + BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
+
+	/* +2 is for Type[1] and Len[1] in TLV, plus TIM signal */
+	data_offset += 2 + BRCMF_FWS_TYPE_PKTTAG_LEN;
+	fillers = round_up(data_offset, 4) - data_offset;
+	data_offset += fillers;
+
+	skb_push(skb, data_offset);
+	wlh = skb->data;
+
+	wlh[0] = BRCMF_FWS_TYPE_PKTTAG;
+	wlh[1] = BRCMF_FWS_TYPE_PKTTAG_LEN;
+	memcpy(&wlh[2], &pkttag, sizeof(pkttag));
+	wlh += BRCMF_FWS_TYPE_PKTTAG_LEN + 2;
+
+	if (entry->send_tim_signal) {
+		entry->send_tim_signal = 0;
+		wlh[0] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP;
+		wlh[1] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
+		wlh[2] = entry->mac_handle;
+		wlh[3] = entry->traffic_pending_bmp;
+		brcmf_dbg(TRACE, "adding TIM info: %02X:%02X:%02X:%02X\n",
+			  wlh[0], wlh[1], wlh[2], wlh[3]);
+		wlh += BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2;
+		entry->traffic_lastreported_bmp = entry->traffic_pending_bmp;
 	}
-	/* request a TIM update to firmware at the next piggyback opportunity */
+	if (fillers)
+		memset(wlh, BRCMF_FWS_TYPE_FILLER, fillers);
+
+	brcmf_proto_hdrpush(fws->drvr, brcmf_skb_if_flags_get_field(skb, INDEX),
+			    data_offset >> 2, skb);
+	return 0;
+}
+
+static bool brcmf_fws_tim_update(struct brcmf_fws_info *fws,
+				 struct brcmf_fws_mac_descriptor *entry,
+				 int prec, bool send_immediately)
+{
+	struct sk_buff *skb;
+	struct brcmf_bus *bus;
+	struct brcmf_skbuff_cb *skcb;
+	s32 err;
+	u32 len;
+
+	/* check delayedQ and suppressQ in one call using bitmap */
+	if (brcmu_pktq_mlen(&entry->psq, 3 << (prec * 2)) == 0)
+		entry->traffic_pending_bmp &= ~NBITVAL(prec);
+	else
+		entry->traffic_pending_bmp |= NBITVAL(prec);
+
+	entry->send_tim_signal = false;
 	if (entry->traffic_lastreported_bmp != entry->traffic_pending_bmp)
 		entry->send_tim_signal = true;
+	if (send_immediately && entry->send_tim_signal &&
+	    entry->state == BRCMF_FWS_STATE_CLOSE) {
+		/* create a dummy packet and sent that. The traffic          */
+		/* bitmap info will automatically be attached to that packet */
+		len = BRCMF_FWS_TYPE_PKTTAG_LEN + 2 +
+		      BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2 +
+		      4 + fws->drvr->hdrlen;
+		skb = brcmu_pkt_buf_get_skb(len);
+		if (skb == NULL)
+			return false;
+		skb_pull(skb, len);
+		skcb = brcmf_skbcb(skb);
+		skcb->mac = entry;
+		skcb->state = BRCMF_FWS_SKBSTATE_TIM;
+		bus = fws->drvr->bus_if;
+		err = brcmf_fws_hdrpush(fws, skb);
+		if (err == 0)
+			err = brcmf_bus_txdata(bus, skb);
+		if (err)
+			brcmu_pkt_buf_free_skb(skb);
+		return true;
+	}
+	return false;
 }
 
 static void
@@ -886,7 +963,6 @@ static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws,
 {
 	struct brcmf_fws_mac_descriptor *entry;
 	u8 mac_handle;
-	int i;
 
 	mac_handle = data[0];
 	entry = &fws->desc.nodes[mac_handle & 0x1F];
@@ -894,18 +970,18 @@ static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws,
 		fws->stats.mac_ps_update_failed++;
 		return -ESRCH;
 	}
-
-	brcmf_dbg(TRACE, "%s (%d): %s\n", brcmf_fws_get_tlv_name(type), type,
-		  entry->name);
-	/* a state update should wipe old credits? */
+	/* a state update should wipe old credits */
 	entry->requested_credit = 0;
+	entry->requested_packet = 0;
 	if (type == BRCMF_FWS_TYPE_MAC_OPEN) {
 		entry->state = BRCMF_FWS_STATE_OPEN;
 		return BRCMF_FWS_RET_OK_SCHEDULE;
 	} else {
 		entry->state = BRCMF_FWS_STATE_CLOSE;
-		for (i = BRCMF_FWS_FIFO_AC_BE; i < NL80211_NUM_ACS; i++)
-			brcmf_fws_tim_update(fws, entry, i);
+		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_BK, false);
+		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_BE, false);
+		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_VI, false);
+		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_VO, true);
 	}
 	return BRCMF_FWS_RET_OK_NOSCHEDULE;
 }
@@ -1104,7 +1180,7 @@ static int brcmf_fws_enq(struct brcmf_fws_info *fws,
 	 * A packet has been pushed so update traffic
 	 * availability bitmap, if applicable
 	 */
-	brcmf_fws_tim_update(fws, entry, fifo);
+	brcmf_fws_tim_update(fws, entry, fifo, true);
 	brcmf_fws_flow_control_check(fws, &entry->psq,
 				     brcmf_skb_if_flags_get_field(p, INDEX));
 	return 0;
@@ -1160,7 +1236,7 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
 		 * A packet has been picked up, update traffic
 		 * availability bitmap, if applicable
 		 */
-		brcmf_fws_tim_update(fws, entry, fifo);
+		brcmf_fws_tim_update(fws, entry, fifo, false);
 
 		/*
 		 * decrement total enqueued fifo packets and
@@ -1495,47 +1571,6 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 	return 0;
 }
 
-static int brcmf_fws_hdrpush(struct brcmf_fws_info *fws, struct sk_buff *skb)
-{
-	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
-	u8 *wlh;
-	u16 data_offset = 0;
-	u8 fillers;
-	__le32 pkttag = cpu_to_le32(brcmf_skbcb(skb)->htod);
-
-	if (entry->send_tim_signal)
-		data_offset += 2 + BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
-
-	/* +2 is for Type[1] and Len[1] in TLV, plus TIM signal */
-	data_offset += 2 + BRCMF_FWS_TYPE_PKTTAG_LEN;
-	fillers = round_up(data_offset, 4) - data_offset;
-	data_offset += fillers;
-
-	skb_push(skb, data_offset);
-	wlh = skb->data;
-
-	wlh[0] = BRCMF_FWS_TYPE_PKTTAG;
-	wlh[1] = BRCMF_FWS_TYPE_PKTTAG_LEN;
-	memcpy(&wlh[2], &pkttag, sizeof(pkttag));
-	wlh += BRCMF_FWS_TYPE_PKTTAG_LEN + 2;
-
-	if (entry->send_tim_signal) {
-		entry->send_tim_signal = 0;
-		wlh[0] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP;
-		wlh[1] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
-		wlh[2] = entry->mac_handle;
-		wlh[3] = entry->traffic_pending_bmp;
-		wlh += BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2;
-		entry->traffic_lastreported_bmp = entry->traffic_pending_bmp;
-	}
-	if (fillers)
-		memset(wlh, BRCMF_FWS_TYPE_FILLER, fillers);
-
-	brcmf_proto_hdrpush(fws->drvr, brcmf_skb_if_flags_get_field(skb, INDEX),
-			    data_offset >> 2, skb);
-	return 0;
-}
-
 static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 				   struct sk_buff *p)
 {
@@ -1990,6 +2025,10 @@ void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
 	ulong flags;
 	int fifo;
 
+	if (brcmf_skbcb(skb)->state == BRCMF_FWS_SKBSTATE_TIM) {
+		brcmu_pkt_buf_free_skb(skb);
+		return;
+	}
 	brcmf_fws_lock(fws->drvr, flags);
 	brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_FW_TOSSED,
 				   brcmf_skb_htod_tag_get_field(skb, HSLOT), 0);
-- 
cgit v0.10.2


From ee06fcad742ab52a1ba67ba734fee6a98af51621 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Fri, 7 Jun 2013 11:03:00 +0200
Subject: brcmfmac: free primary net_device when brcmf_bus_start() fails

When initialization within brcmf_bus_start() fails on steps
before the brcmf_net_attach() the net_device for the primary
interface needs to be freed.

This patch resolves a panic during kernel boot as reported
by Stephen Warren.

ref.: http://mid.gmane.org/51AD1F22.2080004@wwwdotorg.org

Tested-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index 2982886..8c402e7 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -941,6 +941,10 @@ fail:
 			brcmf_fws_del_interface(ifp);
 			brcmf_fws_deinit(drvr);
 		}
+		if (drvr->iflist[0]) {
+			free_netdev(ifp->ndev);
+			drvr->iflist[0] = NULL;
+		}
 		if (p2p_ifp) {
 			free_netdev(p2p_ifp->ndev);
 			drvr->iflist[1] = NULL;
-- 
cgit v0.10.2


From f2c7a793374be88eb680a5dfcf400b4cd97f29d4 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 7 Jun 2013 18:12:00 +0200
Subject: ath9k: add support for IEEE80211_TX_CTL_PS_RESPONSE

Use the UAPSD hardware queue to get PS-Poll responses out as fast as
possible and without backoff.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 18fcee4..4f79827 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -296,6 +296,7 @@ struct ath_tx {
 	struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
 	struct ath_descdma txdma;
 	struct ath_txq *txq_map[IEEE80211_NUM_ACS];
+	struct ath_txq *uapsdq;
 	u32 txq_max_pending[IEEE80211_NUM_ACS];
 	u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
 };
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 389ee1b..d65ee6e 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -432,6 +432,8 @@ static int ath9k_init_queues(struct ath_softc *sc)
 	sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
 	ath_cabq_update(sc);
 
+	sc->tx.uapsdq = ath_txq_setup(sc, ATH9K_TX_QUEUE_UAPSD, 0);
+
 	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 		sc->tx.txq_map[i] = ath_txq_setup(sc, ATH9K_TX_QUEUE_DATA, i);
 		sc->tx.txq_map[i]->mac80211_qnum = i;
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 1c9b1ba..3931bd8 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1681,8 +1681,9 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
 	}
 }
 
-static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
-			      struct sk_buff *skb, struct ath_tx_control *txctl)
+static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_txq *txq,
+			      struct ath_atx_tid *tid, struct sk_buff *skb,
+			      struct ath_tx_control *txctl)
 {
 	struct ath_frame_info *fi = get_frame_info(skb);
 	struct list_head bf_head;
@@ -1695,21 +1696,22 @@ static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
 	 * - seqno is not within block-ack window
 	 * - h/w queue depth exceeds low water mark
 	 */
-	if (!skb_queue_empty(&tid->buf_q) || tid->paused ||
-	    !BAW_WITHIN(tid->seq_start, tid->baw_size, tid->seq_next) ||
-	    txctl->txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) {
+	if ((!skb_queue_empty(&tid->buf_q) || tid->paused ||
+	     !BAW_WITHIN(tid->seq_start, tid->baw_size, tid->seq_next) ||
+	     txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) &&
+	    txq != sc->tx.uapsdq) {
 		/*
 		 * Add this frame to software queue for scheduling later
 		 * for aggregation.
 		 */
-		TX_STAT_INC(txctl->txq->axq_qnum, a_queued_sw);
+		TX_STAT_INC(txq->axq_qnum, a_queued_sw);
 		__skb_queue_tail(&tid->buf_q, skb);
 		if (!txctl->an || !txctl->an->sleeping)
-			ath_tx_queue_tid(txctl->txq, tid);
+			ath_tx_queue_tid(txq, tid);
 		return;
 	}
 
-	bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb);
+	bf = ath_tx_setup_buffer(sc, txq, tid, skb);
 	if (!bf) {
 		ieee80211_free_txskb(sc->hw, skb);
 		return;
@@ -1724,10 +1726,10 @@ static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
 	ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
 
 	/* Queue to h/w without aggregation */
-	TX_STAT_INC(txctl->txq->axq_qnum, a_queued_hw);
+	TX_STAT_INC(txq->axq_qnum, a_queued_hw);
 	bf->bf_lastbf = bf;
-	ath_tx_fill_desc(sc, bf, txctl->txq, fi->framelen);
-	ath_tx_txqaddbuf(sc, txctl->txq, &bf_head, false);
+	ath_tx_fill_desc(sc, bf, txq, fi->framelen);
+	ath_tx_txqaddbuf(sc, txq, &bf_head, false);
 }
 
 static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
@@ -1935,6 +1937,12 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 		txq->stopped = true;
 	}
 
+	if (info->flags & IEEE80211_TX_CTL_PS_RESPONSE) {
+		ath_txq_unlock(sc, txq);
+		txq = sc->tx.uapsdq;
+		ath_txq_lock(sc, txq);
+	}
+
 	if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
 		tidno = ieee80211_get_qos_ctl(hdr)[0] &
 			IEEE80211_QOS_CTL_TID_MASK;
@@ -1948,11 +1956,11 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 		 * Try aggregation if it's a unicast data frame
 		 * and the destination is HT capable.
 		 */
-		ath_tx_send_ampdu(sc, tid, skb, txctl);
+		ath_tx_send_ampdu(sc, txq, tid, skb, txctl);
 		goto out;
 	}
 
-	bf = ath_tx_setup_buffer(sc, txctl->txq, tid, skb);
+	bf = ath_tx_setup_buffer(sc, txq, tid, skb);
 	if (!bf) {
 		if (txctl->paprd)
 			dev_kfree_skb_any(skb);
@@ -1967,7 +1975,7 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 		bf->bf_state.bfs_paprd_timestamp = jiffies;
 
 	ath_set_rates(vif, sta, bf);
-	ath_tx_send_normal(sc, txctl->txq, tid, skb);
+	ath_tx_send_normal(sc, txq, tid, skb);
 
 out:
 	ath_txq_unlock(sc, txq);
@@ -2020,7 +2028,12 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
 	}
 	spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
 
+	__skb_queue_tail(&txq->complete_q, skb);
+
 	q = skb_get_queue_mapping(skb);
+	if (txq == sc->tx.uapsdq)
+		txq = sc->tx.txq_map[q];
+
 	if (txq == sc->tx.txq_map[q]) {
 		if (WARN_ON(--txq->pending_frames < 0))
 			txq->pending_frames = 0;
@@ -2031,8 +2044,6 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
 			txq->stopped = false;
 		}
 	}
-
-	__skb_queue_tail(&txq->complete_q, skb);
 }
 
 static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
-- 
cgit v0.10.2


From 86a22acfcb40ed9cf4ceee789b45da6a3314ed77 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 7 Jun 2013 18:12:01 +0200
Subject: ath9k: implement support for .release_buffered_frames()

This adds support for PS-Poll and U-APSD driver-buffered frames (part of
an aggregation session).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 4f79827..bd35a54 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -354,6 +354,11 @@ void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid
 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
 		       struct ath_node *an);
+void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
+				   struct ieee80211_sta *sta,
+				   u16 tids, int nframes,
+				   enum ieee80211_frame_release_type reason,
+				   bool more_data);
 
 /********/
 /* VIFs */
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index e5b186b..bf61a1c 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2347,6 +2347,7 @@ struct ieee80211_ops ath9k_ops = {
 	.flush		    = ath9k_flush,
 	.tx_frames_pending  = ath9k_tx_frames_pending,
 	.tx_last_beacon     = ath9k_tx_last_beacon,
+	.release_buffered_frames = ath9k_release_buffered_frames,
 	.get_stats	    = ath9k_get_stats,
 	.set_antenna	    = ath9k_set_antenna,
 	.get_antenna	    = ath9k_get_antenna,
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 3931bd8..6c9ff9c 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -518,6 +518,10 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
 			ath_tx_complete_buf(sc, bf, txq, &bf_head, ts,
 				!txfail);
 		} else {
+			if (tx_info->flags & IEEE80211_TX_STATUS_EOSP) {
+				tx_info->flags &= ~IEEE80211_TX_STATUS_EOSP;
+				ieee80211_sta_eosp(sta);
+			}
 			/* retry the un-acked ones */
 			if (bf->bf_next == NULL && bf_last->bf_stale) {
 				struct ath_buf *tbf;
@@ -786,25 +790,20 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
 	return ndelim;
 }
 
-static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
-					     struct ath_txq *txq,
-					     struct ath_atx_tid *tid,
-					     struct list_head *bf_q,
-					     int *aggr_len)
+static struct ath_buf *
+ath_tx_get_tid_subframe(struct ath_softc *sc, struct ath_txq *txq,
+			struct ath_atx_tid *tid)
 {
-#define PADBYTES(_len) ((4 - ((_len) % 4)) % 4)
-	struct ath_buf *bf, *bf_first = NULL, *bf_prev = NULL;
-	int rl = 0, nframes = 0, ndelim, prev_al = 0;
-	u16 aggr_limit = 0, al = 0, bpad = 0,
-		al_delta, h_baw = tid->baw_size / 2;
-	enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
-	struct ieee80211_tx_info *tx_info;
 	struct ath_frame_info *fi;
 	struct sk_buff *skb;
+	struct ath_buf *bf;
 	u16 seqno;
 
-	do {
+	while (1) {
 		skb = skb_peek(&tid->buf_q);
+		if (!skb)
+			break;
+
 		fi = get_frame_info(skb);
 		bf = fi->bf;
 		if (!fi->bf)
@@ -820,10 +819,8 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
 		seqno = bf->bf_state.seqno;
 
 		/* do not step over block-ack window */
-		if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno)) {
-			status = ATH_AGGR_BAW_CLOSED;
+		if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno))
 			break;
-		}
 
 		if (tid->bar_index > ATH_BA_INDEX(tid->seq_start, seqno)) {
 			struct ath_tx_status ts = {};
@@ -837,6 +834,40 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
 			continue;
 		}
 
+		bf->bf_next = NULL;
+		bf->bf_lastbf = bf;
+		return bf;
+	}
+
+	return NULL;
+}
+
+static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
+					     struct ath_txq *txq,
+					     struct ath_atx_tid *tid,
+					     struct list_head *bf_q,
+					     int *aggr_len)
+{
+#define PADBYTES(_len) ((4 - ((_len) % 4)) % 4)
+	struct ath_buf *bf, *bf_first = NULL, *bf_prev = NULL;
+	int rl = 0, nframes = 0, ndelim, prev_al = 0;
+	u16 aggr_limit = 0, al = 0, bpad = 0,
+		al_delta, h_baw = tid->baw_size / 2;
+	enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
+	struct ieee80211_tx_info *tx_info;
+	struct ath_frame_info *fi;
+	struct sk_buff *skb;
+
+	do {
+		bf = ath_tx_get_tid_subframe(sc, txq, tid);
+		if (!bf) {
+			status = ATH_AGGR_BAW_CLOSED;
+			break;
+		}
+
+		skb = bf->bf_mpdu;
+		fi = get_frame_info(skb);
+
 		if (!bf_first)
 			bf_first = bf;
 
@@ -882,7 +913,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
 
 		/* link buffers of this frame to the aggregate */
 		if (!fi->retries)
-			ath_tx_addto_baw(sc, tid, seqno);
+			ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
 		bf->bf_state.ndelim = ndelim;
 
 		__skb_unlink(skb, &tid->buf_q);
@@ -1090,10 +1121,8 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
 			     struct ath_txq *txq, int len)
 {
 	struct ath_hw *ah = sc->sc_ah;
-	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-	struct ath_buf *bf_first = bf;
+	struct ath_buf *bf_first = NULL;
 	struct ath_tx_info info;
-	bool aggr = !!(bf->bf_state.bf_type & BUF_AGGR);
 
 	memset(&info, 0, sizeof(info));
 	info.is_first = true;
@@ -1101,24 +1130,11 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
 	info.txpower = MAX_RATE_POWER;
 	info.qcu = txq->axq_qnum;
 
-	info.flags = ATH9K_TXDESC_INTREQ;
-	if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
-		info.flags |= ATH9K_TXDESC_NOACK;
-	if (tx_info->flags & IEEE80211_TX_CTL_LDPC)
-		info.flags |= ATH9K_TXDESC_LDPC;
-
-	ath_buf_set_rate(sc, bf, &info, len);
-
-	if (tx_info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
-		info.flags |= ATH9K_TXDESC_CLRDMASK;
-
-	if (bf->bf_state.bfs_paprd)
-		info.flags |= (u32) bf->bf_state.bfs_paprd << ATH9K_TXDESC_PAPRD_S;
-
-
 	while (bf) {
 		struct sk_buff *skb = bf->bf_mpdu;
+		struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 		struct ath_frame_info *fi = get_frame_info(skb);
+		bool aggr = !!(bf->bf_state.bf_type & BUF_AGGR);
 
 		info.type = get_hw_packet_type(skb);
 		if (bf->bf_next)
@@ -1126,6 +1142,26 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
 		else
 			info.link = 0;
 
+		if (!bf_first) {
+			bf_first = bf;
+
+			info.flags = ATH9K_TXDESC_INTREQ;
+			if ((tx_info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT) ||
+			    txq == sc->tx.uapsdq)
+				info.flags |= ATH9K_TXDESC_CLRDMASK;
+
+			if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
+				info.flags |= ATH9K_TXDESC_NOACK;
+			if (tx_info->flags & IEEE80211_TX_CTL_LDPC)
+				info.flags |= ATH9K_TXDESC_LDPC;
+
+			if (bf->bf_state.bfs_paprd)
+				info.flags |= (u32) bf->bf_state.bfs_paprd <<
+					      ATH9K_TXDESC_PAPRD_S;
+
+			ath_buf_set_rate(sc, bf, &info, len);
+		}
+
 		info.buf_addr[0] = bf->bf_buf_addr;
 		info.buf_len[0] = skb->len;
 		info.pkt_len = fi->framelen;
@@ -1135,7 +1171,7 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
 		if (aggr) {
 			if (bf == bf_first)
 				info.aggr = AGGR_BUF_FIRST;
-			else if (!bf->bf_next)
+			else if (bf == bf_first->bf_lastbf)
 				info.aggr = AGGR_BUF_LAST;
 			else
 				info.aggr = AGGR_BUF_MIDDLE;
@@ -1144,6 +1180,9 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
 			info.aggr_len = len;
 		}
 
+		if (bf == bf_first->bf_lastbf)
+			bf_first = NULL;
+
 		ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
 		bf = bf->bf_next;
 	}
@@ -1328,6 +1367,70 @@ void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta,
 	ath_txq_unlock_complete(sc, txq);
 }
 
+void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
+				   struct ieee80211_sta *sta,
+				   u16 tids, int nframes,
+				   enum ieee80211_frame_release_type reason,
+				   bool more_data)
+{
+	struct ath_softc *sc = hw->priv;
+	struct ath_node *an = (struct ath_node *)sta->drv_priv;
+	struct ath_txq *txq = sc->tx.uapsdq;
+	struct ieee80211_tx_info *info;
+	struct list_head bf_q;
+	struct ath_buf *bf_tail = NULL, *bf;
+	int sent = 0;
+	int i;
+
+	INIT_LIST_HEAD(&bf_q);
+	for (i = 0; tids && nframes; i++, tids >>= 1) {
+		struct ath_atx_tid *tid;
+
+		if (!(tids & 1))
+			continue;
+
+		tid = ATH_AN_2_TID(an, i);
+		if (tid->paused)
+			continue;
+
+		ath_txq_lock(sc, tid->ac->txq);
+		while (!skb_queue_empty(&tid->buf_q) && nframes > 0) {
+			bf = ath_tx_get_tid_subframe(sc, sc->tx.uapsdq, tid);
+			if (!bf)
+				break;
+
+			__skb_unlink(bf->bf_mpdu, &tid->buf_q);
+			list_add_tail(&bf->list, &bf_q);
+			ath_set_rates(tid->an->vif, tid->an->sta, bf);
+			ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
+			bf->bf_state.bf_type &= ~BUF_AGGR;
+			if (bf_tail)
+				bf_tail->bf_next = bf;
+
+			bf_tail = bf;
+			nframes--;
+			sent++;
+			TX_STAT_INC(txq->axq_qnum, a_queued_hw);
+
+			if (skb_queue_empty(&tid->buf_q))
+				ieee80211_sta_set_buffered(an->sta, i, false);
+		}
+		ath_txq_unlock_complete(sc, tid->ac->txq);
+	}
+
+	if (list_empty(&bf_q))
+		return;
+
+	info = IEEE80211_SKB_CB(bf_tail->bf_mpdu);
+	info->flags |= IEEE80211_TX_STATUS_EOSP;
+
+	bf = list_first_entry(&bf_q, struct ath_buf, list);
+	ath_txq_lock(sc, txq);
+	ath_tx_fill_desc(sc, bf, txq, 0);
+	ath_tx_txqaddbuf(sc, txq, &bf_q, false);
+	ath_txq_unlock(sc, txq);
+}
+
 /********************/
 /* Queue Management */
 /********************/
-- 
cgit v0.10.2


From 59505c02e106ce9388d816799cd64b0405f98f2f Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 7 Jun 2013 18:12:02 +0200
Subject: ath9k: limit multicast buffer hardware queue depth

The CAB (Content after Beacon) queue is used for beacon-triggered
transmission of buffered multicast frames. If lots of multicast frames
were buffered and this queue fills up, it drowns out all regular
traffic. To limit the damage that buffered traffic can do, try to limit
the queued data to becaon_interval / 8.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index bd35a54..a6e666b 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -344,6 +344,8 @@ int ath_txq_update(struct ath_softc *sc, int qnum,
 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 		 struct ath_tx_control *txctl);
+void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		 struct sk_buff *skb);
 void ath_tx_tasklet(struct ath_softc *sc);
 void ath_tx_edma_tasklet(struct ath_softc *sc);
 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index fd1eeba..1a17732 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -108,23 +108,6 @@ static void ath9k_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif,
 	ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
 }
 
-static void ath9k_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
-	struct ath_softc *sc = hw->priv;
-	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-	struct ath_tx_control txctl;
-
-	memset(&txctl, 0, sizeof(struct ath_tx_control));
-	txctl.txq = sc->beacon.cabq;
-
-	ath_dbg(common, XMIT, "transmitting CABQ packet, skb: %p\n", skb);
-
-	if (ath_tx_start(hw, skb, &txctl) != 0) {
-		ath_dbg(common, XMIT, "CABQ TX failed\n");
-		ieee80211_free_txskb(hw, skb);
-	}
-}
-
 static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw,
 					     struct ieee80211_vif *vif)
 {
@@ -206,10 +189,8 @@ static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw,
 
 	ath9k_beacon_setup(sc, vif, bf, info->control.rates[0].idx);
 
-	while (skb) {
-		ath9k_tx_cabq(hw, skb);
-		skb = ieee80211_get_buffered_bc(hw, vif);
-	}
+	if (skb)
+		ath_tx_cabq(hw, vif, skb);
 
 	return bf;
 }
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 6c9ff9c..7e19d9b 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1970,22 +1970,16 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
 	return bf;
 }
 
-/* Upon failure caller should free skb */
-int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
-		 struct ath_tx_control *txctl)
+static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb,
+			  struct ath_tx_control *txctl)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_sta *sta = txctl->sta;
 	struct ieee80211_vif *vif = info->control.vif;
 	struct ath_softc *sc = hw->priv;
-	struct ath_txq *txq = txctl->txq;
-	struct ath_atx_tid *tid = NULL;
-	struct ath_buf *bf;
-	int padpos, padsize;
 	int frmlen = skb->len + FCS_LEN;
-	u8 tidno;
-	int q;
+	int padpos, padsize;
 
 	/* NOTE:  sta can be NULL according to net/mac80211.h */
 	if (sta)
@@ -2006,6 +2000,11 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 		hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
 	}
 
+	if ((vif && vif->type != NL80211_IFTYPE_AP &&
+	            vif->type != NL80211_IFTYPE_AP_VLAN) ||
+	    !ieee80211_is_data(hdr->frame_control))
+		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+
 	/* Add the padding after the header if this is not already done */
 	padpos = ieee80211_hdrlen(hdr->frame_control);
 	padsize = padpos & 3;
@@ -2015,16 +2014,34 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
 
 		skb_push(skb, padsize);
 		memmove(skb->data, skb->data + padsize, padpos);
-		hdr = (struct ieee80211_hdr *) skb->data;
 	}
 
-	if ((vif && vif->type != NL80211_IFTYPE_AP &&
-	            vif->type != NL80211_IFTYPE_AP_VLAN) ||
-	    !ieee80211_is_data(hdr->frame_control))
-		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
-
 	setup_frame_info(hw, sta, skb, frmlen);
+	return 0;
+}
+
 
+/* Upon failure caller should free skb */
+int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
+		 struct ath_tx_control *txctl)
+{
+	struct ieee80211_hdr *hdr;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_sta *sta = txctl->sta;
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ath_softc *sc = hw->priv;
+	struct ath_txq *txq = txctl->txq;
+	struct ath_atx_tid *tid = NULL;
+	struct ath_buf *bf;
+	u8 tidno;
+	int q;
+	int ret;
+
+	ret = ath_tx_prepare(hw, skb, txctl);
+	if (ret)
+	    return ret;
+
+	hdr = (struct ieee80211_hdr *) skb->data;
 	/*
 	 * At this point, the vif, hw_key and sta pointers in the tx control
 	 * info are no longer valid (overwritten by the ath_frame_info data.
@@ -2086,6 +2103,74 @@ out:
 	return 0;
 }
 
+void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		 struct sk_buff *skb)
+{
+	struct ath_softc *sc = hw->priv;
+	struct ath_tx_control txctl = {
+		.txq = sc->beacon.cabq
+	};
+	struct ath_tx_info info = {};
+	struct ieee80211_hdr *hdr;
+	struct ath_buf *bf_tail = NULL;
+	struct ath_buf *bf;
+	LIST_HEAD(bf_q);
+	int duration = 0;
+	int max_duration;
+
+	max_duration =
+		sc->cur_beacon_conf.beacon_interval * 1000 *
+		sc->cur_beacon_conf.dtim_period / ATH_BCBUF;
+
+	do {
+		struct ath_frame_info *fi = get_frame_info(skb);
+
+		if (ath_tx_prepare(hw, skb, &txctl))
+			break;
+
+		bf = ath_tx_setup_buffer(sc, txctl.txq, NULL, skb);
+		if (!bf)
+			break;
+
+		bf->bf_lastbf = bf;
+		ath_set_rates(vif, NULL, bf);
+		ath_buf_set_rate(sc, bf, &info, fi->framelen);
+		duration += info.rates[0].PktDuration;
+		if (bf_tail)
+			bf_tail->bf_next = bf;
+
+		list_add_tail(&bf->list, &bf_q);
+		bf_tail = bf;
+		skb = NULL;
+
+		if (duration > max_duration)
+			break;
+
+		skb = ieee80211_get_buffered_bc(hw, vif);
+	} while(skb);
+
+	if (skb)
+		ieee80211_free_txskb(hw, skb);
+
+	if (list_empty(&bf_q))
+		return;
+
+	bf = list_first_entry(&bf_q, struct ath_buf, list);
+	hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
+
+	if (hdr->frame_control & IEEE80211_FCTL_MOREDATA) {
+		hdr->frame_control &= ~IEEE80211_FCTL_MOREDATA;
+		dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
+			sizeof(*hdr), DMA_TO_DEVICE);
+	}
+
+	ath_txq_lock(sc, txctl.txq);
+	ath_tx_fill_desc(sc, bf, txctl.txq, 0);
+	ath_tx_txqaddbuf(sc, txctl.txq, &bf_q, false);
+	TX_STAT_INC(txctl.txq->axq_qnum, queued);
+	ath_txq_unlock(sc, txctl.txq);
+}
+
 /*****************/
 /* TX Completion */
 /*****************/
-- 
cgit v0.10.2


From 8b5c7f6c2b16a31b9f0fc4dba72524a7028e5e43 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 9 Jun 2013 09:12:50 +0300
Subject: wil6210: fix timeout for start_pcp

It may take up to 3500ms for the FW to start AP/PCP. Increase accordingly,
adding some safety margin.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 527ffb5..aeb64f2 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -739,8 +739,12 @@ int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
 	if (!wil->secure_pcp)
 		cmd.disable_sec = 1;
 
+	/*
+	 * Processing time may be huge, in case of secure AP it takes about
+	 * 3500ms for FW to start AP
+	 */
 	rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
-		      WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 100);
+		      WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
 	if (rc)
 		return rc;
 
-- 
cgit v0.10.2


From af6b48db9239922391952c09a973c00fde235e92 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 9 Jun 2013 09:12:51 +0300
Subject: wil6210: map more FW memory

map card's back-door debug data

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index aeb64f2..cfcaf7b 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -75,10 +75,11 @@ static const struct {
 	{0x800000, 0x808000, 0x900000}, /* FW data RAM 32k */
 	{0x840000, 0x860000, 0x908000}, /* peripheral data RAM 128k/96k used */
 	{0x880000, 0x88a000, 0x880000}, /* various RGF */
-	{0x8c0000, 0x932000, 0x8c0000}, /* trivial mapping for upper area */
+	{0x8c0000, 0x949000, 0x8c0000}, /* trivial mapping for upper area */
 	/*
 	 * 920000..930000 ucode code RAM
 	 * 930000..932000 ucode data RAM
+	 * 932000..949000 back-door debug data
 	 */
 };
 
-- 
cgit v0.10.2


From f27dbf78c669902adcf45a9561d22f15362a6907 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 9 Jun 2013 09:12:52 +0300
Subject: wil6210: improve frame type reporting

Report FC from the frame itself, as auxiliary information includes
only frame subtype. This is preparation for future changes, when
DMG beacon (extension frame) may be reported through wmi_evt_rx_mgmt()

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index cfcaf7b..ac4d26b 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -315,8 +315,8 @@ static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
 
 	wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d\n",
 		    data->info.channel, data->info.mcs, data->info.snr);
-	wil_dbg_wmi(wil, "status 0x%04x len %d stype %04x\n", d_status, d_len,
-		    le16_to_cpu(data->info.stype));
+	wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
+		    le16_to_cpu(fc));
 	wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
 		    data->info.qid, data->info.mid, data->info.cid);
 
-- 
cgit v0.10.2


From 92646c9f1f8fa2a31a3c12b026c2a8cd0e168341 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 9 Jun 2013 09:12:53 +0300
Subject: wil6210: Derive IE's for AP

When starting secure AP, in some cases wpa_s provides probe template but not
probe/assoc IE's. In this case, derive missing IE's from probe.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 4eb05d0..189c307 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -402,6 +402,30 @@ static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
 	return 0;
 }
 
+static int wil_fix_bcon(struct wil6210_priv *wil,
+			struct cfg80211_beacon_data *bcon)
+{
+	struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp;
+	size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
+	int rc = 0;
+
+	if (bcon->probe_resp_len <= hlen)
+		return 0;
+
+	if (!bcon->proberesp_ies) {
+		bcon->proberesp_ies = f->u.probe_resp.variable;
+		bcon->proberesp_ies_len = bcon->probe_resp_len - hlen;
+		rc = 1;
+	}
+	if (!bcon->assocresp_ies) {
+		bcon->assocresp_ies = f->u.probe_resp.variable;
+		bcon->assocresp_ies_len = bcon->probe_resp_len - hlen;
+		rc = 1;
+	}
+
+	return rc;
+}
+
 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
 				 struct net_device *ndev,
 				 struct cfg80211_ap_settings *info)
@@ -423,6 +447,9 @@ static int wil_cfg80211_start_ap(struct wiphy *wiphy,
 	print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 			     info->ssid, info->ssid_len);
 
+	if (wil_fix_bcon(wil, bcon))
+		wil_dbg_misc(wil, "Fixed bcon\n");
+
 	rc = wil_reset(wil);
 	if (rc)
 		return rc;
-- 
cgit v0.10.2


From d58db4e49f58152a28dd598ebbec56f1fe92aa80 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 9 Jun 2013 09:12:54 +0300
Subject: wil6210: Send EAPOL frames using normal Tx queue

No more need for special processing of EAPOL, FW can now send EAPOL frames
using normal Tx queue for TID 0

This fixes "schedule while atomic" bug - start_xmit called in softirq context;
while WMI mechanism that was used may sleep.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 00dffed..e1c492b 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -768,18 +768,16 @@ netdev_tx_t wil_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		wil_err(wil, "Xmit in monitor mode not supported\n");
 		goto drop;
 	}
-	if (skb->protocol == cpu_to_be16(ETH_P_PAE)) {
-		rc = wmi_tx_eapol(wil, skb);
-	} else {
-		/* find vring */
-		vring = wil_find_tx_vring(wil, skb);
-		if (!vring) {
-			wil_err(wil, "No Tx VRING available\n");
-			goto drop;
-		}
-		/* set up vring entry */
-		rc = wil_tx_vring(wil, vring, skb);
+
+	/* find vring */
+	vring = wil_find_tx_vring(wil, skb);
+	if (!vring) {
+		wil_err(wil, "No Tx VRING available\n");
+		goto drop;
 	}
+	/* set up vring entry */
+	rc = wil_tx_vring(wil, vring, skb);
+
 	switch (rc) {
 	case 0:
 		/* statistics will be updated on the tx_complete */
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 373cf65..44fdab5 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -329,7 +329,6 @@ int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid);
 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid);
 int wmi_set_channel(struct wil6210_priv *wil, int channel);
 int wmi_get_channel(struct wil6210_priv *wil, int *channel);
-int wmi_tx_eapol(struct wil6210_priv *wil, struct sk_buff *skb);
 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
 		       const void *mac_addr);
 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index ac4d26b..dc8059a 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -839,40 +839,6 @@ int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
 	return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
 }
 
-int wmi_tx_eapol(struct wil6210_priv *wil, struct sk_buff *skb)
-{
-	struct wmi_eapol_tx_cmd *cmd;
-	struct ethhdr *eth;
-	u16 eapol_len = skb->len - ETH_HLEN;
-	void *eapol = skb->data + ETH_HLEN;
-	uint i;
-	int rc;
-
-	skb_set_mac_header(skb, 0);
-	eth = eth_hdr(skb);
-	wil_dbg_wmi(wil, "EAPOL %d bytes to %pM\n", eapol_len, eth->h_dest);
-	for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
-		if (memcmp(wil->dst_addr[i], eth->h_dest, ETH_ALEN) == 0)
-			goto found_dest;
-	}
-
-	return -EINVAL;
-
- found_dest:
-	/* find out eapol data & len */
-	cmd = kzalloc(sizeof(*cmd) + eapol_len, GFP_KERNEL);
-	if (!cmd)
-		return -EINVAL;
-
-	memcpy(cmd->dst_mac, eth->h_dest, ETH_ALEN);
-	cmd->eapol_len = cpu_to_le16(eapol_len);
-	memcpy(cmd->eapol, eapol, eapol_len);
-	rc = wmi_send(wil, WMI_EAPOL_TX_CMDID, cmd, sizeof(*cmd) + eapol_len);
-	kfree(cmd);
-
-	return rc;
-}
-
 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
 		       const void *mac_addr)
 {
-- 
cgit v0.10.2


From e31b25627f6ddcc0905d552c3a9642b1060657bb Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Sun, 9 Jun 2013 09:12:55 +0300
Subject: wil6210: Init Rx vring right after reset

at the vring initialisation, memory pool get allocated in the FW.
Make it 1-st because FW need this memory pool to precess
next commands

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 189c307..61c302a 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -454,6 +454,11 @@ static int wil_cfg80211_start_ap(struct wiphy *wiphy,
 	if (rc)
 		return rc;
 
+	/* Rx VRING. */
+	rc = wil_rx_init(wil);
+	if (rc)
+		return rc;
+
 	rc = wmi_set_ssid(wil, info->ssid_len, info->ssid);
 	if (rc)
 		return rc;
@@ -482,8 +487,6 @@ static int wil_cfg80211_start_ap(struct wiphy *wiphy,
 	if (rc)
 		return rc;
 
-	/* Rx VRING. After MAC and beacon */
-	rc = wil_rx_init(wil);
 
 	netif_carrier_on(ndev);
 
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index c97b864..8cafa45 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -295,6 +295,11 @@ static int __wil_up(struct wil6210_priv *wil)
 	if (rc)
 		return rc;
 
+	/* Rx VRING. After MAC and beacon */
+	rc = wil_rx_init(wil);
+	if (rc)
+		return rc;
+
 	/* FIXME Firmware works now in PBSS mode(ToDS=0, FromDS=0) */
 	wmi_nettype = wil_iftype_nl2wmi(NL80211_IFTYPE_ADHOC);
 	switch (wdev->iftype) {
@@ -356,9 +361,6 @@ static int __wil_up(struct wil6210_priv *wil)
 			return rc;
 	}
 
-	/* Rx VRING. After MAC and beacon */
-	wil_rx_init(wil);
-
 	napi_enable(&wil->napi_rx);
 	napi_enable(&wil->napi_tx);
 
-- 
cgit v0.10.2


From eb4928cfc6263c3377d049a41830e36d1af15b31 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 9 Jun 2013 13:10:05 +0200
Subject: wil6210: fix name of tracing config option

Tracing in wil6210 is activated with WIL6210_TRACING and not with
ATH6KL_TRACING, this is used for the ath6kl driver. Rename the config
option.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/Kconfig b/drivers/net/wireless/ath/wil6210/Kconfig
index 5644ac5..ce8c038 100644
--- a/drivers/net/wireless/ath/wil6210/Kconfig
+++ b/drivers/net/wireless/ath/wil6210/Kconfig
@@ -28,7 +28,7 @@ config WIL6210_ISR_COR
 	  such monitoring impossible.
 	  Say y unless you debug interrupts
 
-config ATH6KL_TRACING
+config WIL6210_TRACING
 	bool "wil6210 tracing support"
 	depends on WIL6210
 	depends on EVENT_TRACING
-- 
cgit v0.10.2


From 4c895f41a750b3f81bf0890d2730ac6b867357f8 Mon Sep 17 00:00:00 2001
From: Kirshenbaum Erez <erezk@wilocity.com>
Date: Sun, 9 Jun 2013 17:35:28 +0300
Subject: wil6210: Fix AP/PCP start flow

WMI PCP Start flow should not be handled through:
net_device_ops->ndo_open()->wil_up()->__wil_up()
because it missing mandatory FW parameters (SSID,Channel,IEs, Security...).

Prior to AP starting __wil_up() may be called with iftype set
cfg80211_ops->change_virtual_intf(NL80211_IFTYPE_AP or STATION)
depend on the application hostapd/wpa_supplicant/iw.
there should not be an attempt to start an AP flow,
AP/PCP start flow will be started latter by cfg80211_ops->start_ap().

Signed-off-by: Kirshenbaum Erez <erezk@wilocity.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 8cafa45..0a2844c 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -286,10 +286,7 @@ static int __wil_up(struct wil6210_priv *wil)
 {
 	struct net_device *ndev = wil_to_ndev(wil);
 	struct wireless_dev *wdev = wil->wdev;
-	struct ieee80211_channel *channel = wdev->preset_chandef.chan;
 	int rc;
-	int bi;
-	u16 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
 
 	rc = wil_reset(wil);
 	if (rc)
@@ -300,32 +297,25 @@ static int __wil_up(struct wil6210_priv *wil)
 	if (rc)
 		return rc;
 
-	/* FIXME Firmware works now in PBSS mode(ToDS=0, FromDS=0) */
-	wmi_nettype = wil_iftype_nl2wmi(NL80211_IFTYPE_ADHOC);
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_STATION:
 		wil_dbg_misc(wil, "type: STATION\n");
-		bi = 0;
 		ndev->type = ARPHRD_ETHER;
 		break;
 	case NL80211_IFTYPE_AP:
 		wil_dbg_misc(wil, "type: AP\n");
-		bi = 100;
 		ndev->type = ARPHRD_ETHER;
 		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
 		wil_dbg_misc(wil, "type: P2P_CLIENT\n");
-		bi = 0;
 		ndev->type = ARPHRD_ETHER;
 		break;
 	case NL80211_IFTYPE_P2P_GO:
 		wil_dbg_misc(wil, "type: P2P_GO\n");
-		bi = 100;
 		ndev->type = ARPHRD_ETHER;
 		break;
 	case NL80211_IFTYPE_MONITOR:
 		wil_dbg_misc(wil, "type: Monitor\n");
-		bi = 0;
 		ndev->type = ARPHRD_IEEE80211_RADIOTAP;
 		/* ARPHRD_IEEE80211 or ARPHRD_IEEE80211_RADIOTAP ? */
 		break;
@@ -333,33 +323,9 @@ static int __wil_up(struct wil6210_priv *wil)
 		return -EOPNOTSUPP;
 	}
 
-	/* Apply profile in the following order: */
-	/* SSID and channel for the AP */
-	switch (wdev->iftype) {
-	case NL80211_IFTYPE_AP:
-	case NL80211_IFTYPE_P2P_GO:
-		if (wdev->ssid_len == 0) {
-			wil_err(wil, "SSID not set\n");
-			return -EINVAL;
-		}
-		rc = wmi_set_ssid(wil, wdev->ssid_len, wdev->ssid);
-		if (rc)
-			return rc;
-		break;
-	default:
-		break;
-	}
-
 	/* MAC address - pre-requisite for other commands */
 	wmi_set_mac_address(wil, ndev->dev_addr);
 
-	/* Set up beaconing if required. */
-	if (bi > 0) {
-		rc = wmi_pcp_start(wil, bi, wmi_nettype,
-				   (channel ? channel->hw_value : 0));
-		if (rc)
-			return rc;
-	}
 
 	napi_enable(&wil->napi_rx);
 	napi_enable(&wil->napi_tx);
-- 
cgit v0.10.2


From a226c3d96d920ba88a28f463ba77c9693988ff1e Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <linux@rempel-privat.de>
Date: Sun, 9 Jun 2013 18:51:24 +0200
Subject: ath9k_htc: add STBC TX support

All known ar7010+ar* device and current FW support STBC TX. This patch
make use of it and suggest to send STBC if peer support it.
I use wort "suggest" since currenly we have separate rate controller
in FW which will make decision based on rate and hardware.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 0085e64..6958103 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -142,6 +142,7 @@ struct ath9k_htc_target_aggr {
 #define WLAN_RC_40_FLAG  0x02
 #define WLAN_RC_SGI_FLAG 0x04
 #define WLAN_RC_HT_FLAG  0x08
+#define ATH_RC_TX_STBC_FLAG 0x20
 
 struct ath9k_htc_rateset {
 	u8 rs_nrates;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 59f6436..bb0ba9e 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -517,6 +517,9 @@ static void setup_ht_cap(struct ath9k_htc_priv *priv,
 	ath_dbg(common, CONFIG, "TX streams %d, RX streams: %d\n",
 		tx_streams, rx_streams);
 
+	if (tx_streams >= 2)
+		ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
+
 	if (tx_streams != rx_streams) {
 		ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
 		ht_info->mcs.tx_params |= ((tx_streams - 1) <<
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 34869c2..eaa94fe 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -627,6 +627,8 @@ static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv,
 		trate->rates.ht_rates.rs_nrates = j;
 
 		caps = WLAN_RC_HT_FLAG;
+		if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC)
+			caps |= ATH_RC_TX_STBC_FLAG;
 		if (sta->ht_cap.mcs.rx_mask[1])
 			caps |= WLAN_RC_DS_FLAG;
 		if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
-- 
cgit v0.10.2


From 693026ef2e751fd94d2e6c71028e68343cc875d5 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 9 Jun 2013 18:53:58 +0200
Subject: b43: ensue that BCMA is "y" when B43 is "y"

When b43 gets build into the kernel and it should use bcma we have to
ensure that bcma was also build into the kernel and not as a module.
In this patch this is also done for SSB, although you can not
build b43 without ssb support for now.

This fixes a build problem reported by Randy Dunlap in
5187EB95.2060605@infradead.org

Reported-By: Randy Dunlap <rdunlap@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 078e6f3..13f91ac 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -28,7 +28,7 @@ config B43
 
 config B43_BCMA
 	bool "Support for BCMA bus"
-	depends on B43 && BCMA
+	depends on B43 && (BCMA = y || BCMA = B43)
 	default y
 
 config B43_BCMA_EXTRA
@@ -39,7 +39,7 @@ config B43_BCMA_EXTRA
 
 config B43_SSB
 	bool
-	depends on B43 && SSB
+	depends on B43 && (SSB = y || SSB = B43)
 	default y
 
 # Auto-select SSB PCI-HOST support, if possible
-- 
cgit v0.10.2


From d186899fa55ae773ae26cf57aa274c50de4c508c Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 9 Jun 2013 18:59:42 +0200
Subject: bcma: activate PCI host option by default

Most users are using bcma with a PCIe card, activate support for
this by default.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig
index 8b4221c..380a200 100644
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -26,6 +26,7 @@ config BCMA_HOST_PCI_POSSIBLE
 config BCMA_HOST_PCI
 	bool "Support for BCMA on PCI-host bus"
 	depends on BCMA_HOST_PCI_POSSIBLE
+	default y
 
 config BCMA_DRIVER_PCI_HOSTMODE
 	bool "Driver for PCI core working in hostmode"
-- 
cgit v0.10.2


From 6b692f3b66e4a70dff73b3cdc60f7e6d6823300a Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 9 Jun 2013 18:59:43 +0200
Subject: b43: activate N-PHY and HT-PHY support by default

N-PHY and HT-PHY support is more or less stable and should be activated
by default.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 13f91ac..3f21e0b 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -111,6 +111,7 @@ config B43_PIO
 config B43_PHY_N
 	bool "Support for 802.11n (N-PHY) devices"
 	depends on B43
+	default y
 	---help---
 	  Support for the N-PHY.
 
@@ -132,6 +133,7 @@ config B43_PHY_LP
 config B43_PHY_HT
 	bool "Support for HT-PHY (high throughput) devices"
 	depends on B43 && B43_BCMA
+	default y
 	---help---
 	  Support for the HT-PHY.
 
-- 
cgit v0.10.2


From 30d5b709da23f4ab9836c7f66d2d2e780a69cf12 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 10 Jun 2013 13:49:38 +0530
Subject: ath9k_hw: Assign default xlna config for AR9485

For AR9485 boards with XLNA, the default gpio config
is not set correctly, fix this.

Cc: stable@vger.kernel.org
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index e6b92ff..25b8bbb 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3563,14 +3563,18 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 {
 	struct ath9k_hw_capabilities *pCap = &ah->caps;
 	int chain;
-	u32 regval;
+	u32 regval, value;
 	static const u32 switch_chain_reg[AR9300_MAX_CHAINS] = {
 			AR_PHY_SWITCH_CHAIN_0,
 			AR_PHY_SWITCH_CHAIN_1,
 			AR_PHY_SWITCH_CHAIN_2,
 	};
 
-	u32 value = ar9003_hw_ant_ctrl_common_get(ah, is2ghz);
+	if (AR_SREV_9485(ah) && (ar9003_hw_get_rx_gain_idx(ah) == 0))
+		ath9k_hw_cfg_output(ah, AR9300_EXT_LNA_CTL_GPIO_AR9485,
+				    AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED);
+
+	value = ar9003_hw_ant_ctrl_common_get(ah, is2ghz);
 
 	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		REG_RMW_FIELD(ah, AR_PHY_SWITCH_COM,
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index e717741..5013c73 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -351,6 +351,8 @@
 
 #define AR_PHY_CCA_NOM_VAL_9330_2GHZ          -118
 
+#define AR9300_EXT_LNA_CTL_GPIO_AR9485 9
+
 /*
  * AGC Field Definitions
  */
-- 
cgit v0.10.2


From 696df78509d1f81b651dd98ecdc1aecab616db6b Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 10 Jun 2013 13:49:39 +0530
Subject: ath9k: Fix noisefloor calibration

The commits,

"ath9k: Fix regression in channelwidth switch at the same channel"
"ath9k: Fix invalid noisefloor reading due to channel update"

attempted to fix noisefloor calibration when a channel switch
happens due to HT20/HT40 bandwidth change. This is causing invalid
readings resulting in messages like:

"ath: phy16: NF[0] (-45) > MAX (-95), correcting to MAX".

This results in an incorrect noise being used initially for reporting
the signal level of received packets, until NF calibration is done
and the history buffer is updated via the ANI timer, which happens
much later.

When a bandwidth change happens, it is appropriate to reset
the internal history data for the channel. Do this correctly in the
reset() routine by checking the "chanmode" variable.

Cc: stable@vger.kernel.org
Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index d813ab8..ca9d9cd 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1870,7 +1870,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	ah->caldata = caldata;
 	if (caldata && (chan->channel != caldata->channel ||
-			chan->channelFlags != caldata->channelFlags)) {
+			chan->channelFlags != caldata->channelFlags ||
+			chan->chanmode != caldata->chanmode)) {
 		/* Operating channel changed, reset channel calibration data */
 		memset(caldata, 0, sizeof(*caldata));
 		ath9k_init_nfcal_hist_buffer(ah, chan);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index bf61a1c..1737a3e 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1210,13 +1210,6 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 		ath_update_survey_stats(sc);
 		spin_unlock_irqrestore(&common->cc_lock, flags);
 
-		/*
-		 * Preserve the current channel values, before updating
-		 * the same channel
-		 */
-		if (ah->curchan && (old_pos == pos))
-			ath9k_hw_getnf(ah, ah->curchan);
-
 		ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
 					  curchan, channel_type);
 
-- 
cgit v0.10.2


From d3bcb7b24bbf09fde8405770e676fe0c11c79662 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 10 Jun 2013 13:49:40 +0530
Subject: ath9k: Do not assign noise for NULL caldata

ah->noise is maintained globally and not per-channel. This
is updated in the reset() routine after the NF history has been
filled for the *current channel*, just before switching to
the new channel. There is no need to do it inside getnf(), since
ah->noise must contain a value for the new channel.

Cc: stable@vger.kernel.org
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index 7304e75..5e8219a 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -387,7 +387,6 @@ bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
 
 	if (!caldata) {
 		chan->noisefloor = nf;
-		ah->noise = ath9k_hw_getchan_noise(ah, chan);
 		return false;
 	}
 
-- 
cgit v0.10.2


From 0967e01e8e713ed2982fb4eba8ba13794e9a6e89 Mon Sep 17 00:00:00 2001
From: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Date: Tue, 11 Jun 2013 15:10:31 +0200
Subject: ath5k: make use of the new rate control API

This patch enabels ath5k to use the new rate table to lookup each
mrr rate and retry information per packet.

Signed-off-by: Benjamin Vahl <bvahl@net.t-labs.tu-berlin.de>
Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 7f702fe..ce67ab7 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -60,6 +60,7 @@
 
 #include <asm/unaligned.h>
 
+#include <net/mac80211.h>
 #include "base.h"
 #include "reg.h"
 #include "debug.h"
@@ -666,9 +667,46 @@ static enum ath5k_pkt_type get_hw_packet_type(struct sk_buff *skb)
 	return htype;
 }
 
+static struct ieee80211_rate *
+ath5k_get_rate(const struct ieee80211_hw *hw,
+	       const struct ieee80211_tx_info *info,
+	       struct ath5k_buf *bf, int idx)
+{
+	/*
+	* convert a ieee80211_tx_rate RC-table entry to
+	* the respective ieee80211_rate struct
+	*/
+	if (bf->rates[idx].idx < 0) {
+		return NULL;
+	}
+
+	return &hw->wiphy->bands[info->band]->bitrates[ bf->rates[idx].idx ];
+}
+
+static u16
+ath5k_get_rate_hw_value(const struct ieee80211_hw *hw,
+			const struct ieee80211_tx_info *info,
+			struct ath5k_buf *bf, int idx)
+{
+	struct ieee80211_rate *rate;
+	u16 hw_rate;
+	u8 rc_flags;
+
+	rate = ath5k_get_rate(hw, info, bf, idx);
+	if (!rate)
+		return 0;
+
+	rc_flags = bf->rates[idx].flags;
+	hw_rate = (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) ?
+		   rate->hw_value_short : rate->hw_value;
+
+	return hw_rate;
+}
+
 static int
 ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
-		  struct ath5k_txq *txq, int padsize)
+		  struct ath5k_txq *txq, int padsize,
+		  struct ieee80211_tx_control *control)
 {
 	struct ath5k_desc *ds = bf->desc;
 	struct sk_buff *skb = bf->skb;
@@ -688,7 +726,11 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
 	bf->skbaddr = dma_map_single(ah->dev, skb->data, skb->len,
 			DMA_TO_DEVICE);
 
-	rate = ieee80211_get_tx_rate(ah->hw, info);
+	ieee80211_get_tx_rates(info->control.vif, (control) ? control->sta : NULL, skb, bf->rates,
+			       ARRAY_SIZE(bf->rates));
+
+	rate = ath5k_get_rate(ah->hw, info, bf, 0);
+
 	if (!rate) {
 		ret = -EINVAL;
 		goto err_unmap;
@@ -698,8 +740,8 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
 		flags |= AR5K_TXDESC_NOACK;
 
 	rc_flags = info->control.rates[0].flags;
-	hw_rate = (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) ?
-		rate->hw_value_short : rate->hw_value;
+
+	hw_rate = ath5k_get_rate_hw_value(ah->hw, info, bf, 0);
 
 	pktlen = skb->len;
 
@@ -722,12 +764,13 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
 		duration = le16_to_cpu(ieee80211_ctstoself_duration(ah->hw,
 			info->control.vif, pktlen, info));
 	}
+
 	ret = ah->ah_setup_tx_desc(ah, ds, pktlen,
 		ieee80211_get_hdrlen_from_skb(skb), padsize,
 		get_hw_packet_type(skb),
 		(ah->ah_txpower.txp_requested * 2),
 		hw_rate,
-		info->control.rates[0].count, keyidx, ah->ah_tx_ant, flags,
+		bf->rates[0].count, keyidx, ah->ah_tx_ant, flags,
 		cts_rate, duration);
 	if (ret)
 		goto err_unmap;
@@ -736,13 +779,15 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
 	if (ah->ah_capabilities.cap_has_mrr_support) {
 		memset(mrr_rate, 0, sizeof(mrr_rate));
 		memset(mrr_tries, 0, sizeof(mrr_tries));
+
 		for (i = 0; i < 3; i++) {
-			rate = ieee80211_get_alt_retry_rate(ah->hw, info, i);
+
+			rate = ath5k_get_rate(ah->hw, info, bf, i);
 			if (!rate)
 				break;
 
-			mrr_rate[i] = rate->hw_value;
-			mrr_tries[i] = info->control.rates[i + 1].count;
+			mrr_rate[i] = ath5k_get_rate_hw_value(ah->hw, info, bf, i);
+			mrr_tries[i] = bf->rates[i].count;
 		}
 
 		ath5k_hw_setup_mrr_tx_desc(ah, ds,
@@ -1515,7 +1560,7 @@ unlock:
 
 void
 ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
-	       struct ath5k_txq *txq)
+	       struct ath5k_txq *txq, struct ieee80211_tx_control *control)
 {
 	struct ath5k_hw *ah = hw->priv;
 	struct ath5k_buf *bf;
@@ -1555,7 +1600,7 @@ ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
 
 	bf->skb = skb;
 
-	if (ath5k_txbuf_setup(ah, bf, txq, padsize)) {
+	if (ath5k_txbuf_setup(ah, bf, txq, padsize, control)) {
 		bf->skb = NULL;
 		spin_lock_irqsave(&ah->txbuflock, flags);
 		list_add_tail(&bf->list, &ah->txbuf);
@@ -1571,11 +1616,13 @@ drop_packet:
 
 static void
 ath5k_tx_frame_completed(struct ath5k_hw *ah, struct sk_buff *skb,
-			 struct ath5k_txq *txq, struct ath5k_tx_status *ts)
+			 struct ath5k_txq *txq, struct ath5k_tx_status *ts,
+			 struct ath5k_buf *bf)
 {
 	struct ieee80211_tx_info *info;
 	u8 tries[3];
 	int i;
+	int size = 0;
 
 	ah->stats.tx_all_count++;
 	ah->stats.tx_bytes_count += skb->len;
@@ -1587,6 +1634,9 @@ ath5k_tx_frame_completed(struct ath5k_hw *ah, struct sk_buff *skb,
 
 	ieee80211_tx_info_clear_status(info);
 
+	size = min_t(int, sizeof(info->status.rates), sizeof(bf->rates));
+	memcpy(info->status.rates, bf->rates, size);
+
 	for (i = 0; i < ts->ts_final_idx; i++) {
 		struct ieee80211_tx_rate *r =
 			&info->status.rates[i];
@@ -1663,7 +1713,7 @@ ath5k_tx_processq(struct ath5k_hw *ah, struct ath5k_txq *txq)
 
 			dma_unmap_single(ah->dev, bf->skbaddr, skb->len,
 					DMA_TO_DEVICE);
-			ath5k_tx_frame_completed(ah, skb, txq, &ts);
+			ath5k_tx_frame_completed(ah, skb, txq, &ts, bf);
 		}
 
 		/*
@@ -1917,7 +1967,7 @@ ath5k_beacon_send(struct ath5k_hw *ah)
 
 	skb = ieee80211_get_buffered_bc(ah->hw, vif);
 	while (skb) {
-		ath5k_tx_queue(ah->hw, skb, ah->cabq);
+		ath5k_tx_queue(ah->hw, skb, ah->cabq, NULL);
 
 		if (ah->cabq->txq_len >= ah->cabq->txq_max)
 			break;
@@ -2442,7 +2492,8 @@ ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
 			IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
 			IEEE80211_HW_SIGNAL_DBM |
 			IEEE80211_HW_MFP_CAPABLE |
-			IEEE80211_HW_REPORTS_TX_ACK_STATUS;
+			IEEE80211_HW_REPORTS_TX_ACK_STATUS |
+			IEEE80211_HW_SUPPORTS_RC_TABLE;
 
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_AP) |
diff --git a/drivers/net/wireless/ath/ath5k/base.h b/drivers/net/wireless/ath/ath5k/base.h
index 6c94c7f..ca9a83c 100644
--- a/drivers/net/wireless/ath/ath5k/base.h
+++ b/drivers/net/wireless/ath/ath5k/base.h
@@ -47,6 +47,7 @@ struct ath5k_hw;
 struct ath5k_txq;
 struct ieee80211_channel;
 struct ath_bus_ops;
+struct ieee80211_tx_control;
 enum nl80211_iftype;
 
 enum ath5k_srev_type {
@@ -61,11 +62,12 @@ struct ath5k_srev_name {
 };
 
 struct ath5k_buf {
-	struct list_head	list;
-	struct ath5k_desc	*desc;	/* virtual addr of desc */
-	dma_addr_t		daddr;	/* physical addr of desc */
-	struct sk_buff		*skb;	/* skbuff for buf */
-	dma_addr_t		skbaddr;/* physical addr of skb data */
+	struct list_head		list;
+	struct ath5k_desc		*desc;		/* virtual addr of desc */
+	dma_addr_t			daddr;		/* physical addr of desc */
+	struct sk_buff			*skb;		/* skbuff for buf */
+	dma_addr_t			skbaddr;	/* physical addr of skb data */
+	struct ieee80211_tx_rate	rates[4];	/* number of multi-rate stages */
 };
 
 struct ath5k_vif {
@@ -103,7 +105,7 @@ int ath5k_chan_set(struct ath5k_hw *ah, struct ieee80211_channel *chan);
 void ath5k_txbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf);
 void ath5k_rxbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf);
 void ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
-		    struct ath5k_txq *txq);
+		    struct ath5k_txq *txq, struct ieee80211_tx_control *control);
 
 const char *ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val);
 
diff --git a/drivers/net/wireless/ath/ath5k/mac80211-ops.c b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
index 06f86f4..81b686c 100644
--- a/drivers/net/wireless/ath/ath5k/mac80211-ops.c
+++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
@@ -66,7 +66,7 @@ ath5k_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
 		return;
 	}
 
-	ath5k_tx_queue(hw, skb, &ah->txqs[qnum]);
+	ath5k_tx_queue(hw, skb, &ah->txqs[qnum], control);
 }
 
 
-- 
cgit v0.10.2


From 42ce8943e14734dd388e6934fff31a11c1adad8f Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 12 Jun 2013 16:44:47 +0200
Subject: iwlegacy: small refactoring of il_{stop,wake}_queue

Tested-by: Jake Edge <jake@lwn.net>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index 4caaf52..67da89b 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -2257,6 +2257,19 @@ il_set_swq_id(struct il_tx_queue *txq, u8 ac, u8 hwq)
 }
 
 static inline void
+_il_wake_queue(struct il_priv *il, u8 ac)
+{
+	if (atomic_dec_return(&il->queue_stop_count[ac]) <= 0)
+		ieee80211_wake_queue(il->hw, ac);
+}
+
+static inline void
+_il_stop_queue(struct il_priv *il, u8 ac)
+{
+	if (atomic_inc_return(&il->queue_stop_count[ac]) > 0)
+		ieee80211_stop_queue(il->hw, ac);
+}
+static inline void
 il_wake_queue(struct il_priv *il, struct il_tx_queue *txq)
 {
 	u8 queue = txq->swq_id;
@@ -2264,8 +2277,7 @@ il_wake_queue(struct il_priv *il, struct il_tx_queue *txq)
 	u8 hwq = (queue >> 2) & 0x1f;
 
 	if (test_and_clear_bit(hwq, il->queue_stopped))
-		if (atomic_dec_return(&il->queue_stop_count[ac]) <= 0)
-			ieee80211_wake_queue(il->hw, ac);
+		_il_wake_queue(il, ac);
 }
 
 static inline void
@@ -2276,8 +2288,7 @@ il_stop_queue(struct il_priv *il, struct il_tx_queue *txq)
 	u8 hwq = (queue >> 2) & 0x1f;
 
 	if (!test_and_set_bit(hwq, il->queue_stopped))
-		if (atomic_inc_return(&il->queue_stop_count[ac]) > 0)
-			ieee80211_stop_queue(il->hw, ac);
+		_il_stop_queue(il, ac);
 }
 
 #ifdef ieee80211_stop_queue
-- 
cgit v0.10.2


From c6af8074fd3654b2a8d7b31304d686519b062e14 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 12 Jun 2013 16:44:48 +0200
Subject: iwlegacy: add il_{stop,wake}_queues_by_reason functions

Add functions that will stop/wake all queues. Make them safe
regarding multiple calls and when some ac are stopped/woke
independently.

Tested-by: Jake Edge <jake@lwn.net>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index 67da89b..83f8ed8 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -1299,6 +1299,8 @@ struct il_priv {
 	/* queue refcounts */
 #define IL_MAX_HW_QUEUES	32
 	unsigned long queue_stopped[BITS_TO_LONGS(IL_MAX_HW_QUEUES)];
+#define IL_STOP_REASON_PASSIVE	0
+	unsigned long stop_reason;
 	/* for each AC */
 	atomic_t queue_stop_count[4];
 
@@ -2291,6 +2293,26 @@ il_stop_queue(struct il_priv *il, struct il_tx_queue *txq)
 		_il_stop_queue(il, ac);
 }
 
+static inline void
+il_wake_queues_by_reason(struct il_priv *il, int reason)
+{
+	u8 ac;
+
+	if (test_and_clear_bit(reason, &il->stop_reason))
+		for (ac = 0; ac < 4; ac++)
+			_il_wake_queue(il, ac);
+}
+
+static inline void
+il_stop_queues_by_reason(struct il_priv *il, int reason)
+{
+	u8 ac;
+
+	if (!test_and_set_bit(reason, &il->stop_reason))
+		for (ac = 0; ac < 4; ac++)
+			_il_stop_queue(il, ac);
+}
+
 #ifdef ieee80211_stop_queue
 #undef ieee80211_stop_queue
 #endif
-- 
cgit v0.10.2


From 8cdbab7f07e82f26c48adcc761391c1c7ff339ff Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 12 Jun 2013 16:44:49 +0200
Subject: iwl4965: workaround for firmware frame tx rejection

Firmware can reject to transmit frame on passive channel, when it
did not yet received any frame with valid CRC on that channel.
Workaround this problem in the driver.

Tested-by: Jake Edge <jake@lwn.net>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 9a95045..1c44bb5 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -588,6 +588,11 @@ il4965_pass_packet_to_mac80211(struct il_priv *il, struct ieee80211_hdr *hdr,
 		return;
 	}
 
+	if (unlikely(test_bit(IL_STOP_REASON_PASSIVE, &il->stop_reason))) {
+		il_wake_queues_by_reason(il, IL_STOP_REASON_PASSIVE);
+		D_INFO("Woke queues - frame received on passive channel\n");
+	}
+
 	/* In case of HW accelerated crypto and bad decryption, drop */
 	if (!il->cfg->mod_params->sw_crypto &&
 	    il_set_decrypted_flag(il, hdr, ampdu_status, stats))
@@ -2806,6 +2811,19 @@ il4965_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb)
 		return;
 	}
 
+	/*
+	 * Firmware will not transmit frame on passive channel, if it not yet
+	 * received some valid frame on that channel. When this error happen
+	 * we have to wait until firmware will unblock itself i.e. when we
+	 * note received beacon or other frame. We unblock queues in
+	 * il4965_pass_packet_to_mac80211 or in il_mac_bss_info_changed.
+	 */
+	if (unlikely((status & TX_STATUS_MSK) == TX_STATUS_FAIL_PASSIVE_NO_RX) &&
+	    il->iw_mode == NL80211_IFTYPE_STATION) {
+		il_stop_queues_by_reason(il, IL_STOP_REASON_PASSIVE);
+		D_INFO("Stopped queues - RX waiting on passive channel\n");
+	}
+
 	spin_lock_irqsave(&il->sta_lock, flags);
 	if (txq->sched_retry) {
 		const u32 scd_ssn = il4965_get_scd_ssn(tx_resp);
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index e9a3cbc..3195aad 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -5307,6 +5307,17 @@ il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		D_MAC80211("BSSID %pM\n", bss_conf->bssid);
 
 		/*
+		 * On passive channel we wait with blocked queues to see if
+		 * there is traffic on that channel. If no frame will be
+		 * received (what is very unlikely since scan detects AP on
+		 * that channel, but theoretically possible), mac80211 associate
+		 * procedure will time out and mac80211 will call us with NULL
+		 * bssid. We have to unblock queues on such condition.
+		 */
+		if (is_zero_ether_addr(bss_conf->bssid))
+			il_wake_queues_by_reason(il, IL_STOP_REASON_PASSIVE);
+
+		/*
 		 * If there is currently a HW scan going on in the background,
 		 * then we need to cancel it, otherwise sometimes we are not
 		 * able to authenticate (FIXME: why ?)
-- 
cgit v0.10.2


From c72456c75ae48d4d747c2ad4f7fe82601484a949 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 12 Jun 2013 16:44:50 +0200
Subject: iwl3945: workaround for firmware frame tx rejection

Firmware can reject to transmit frame on passive channel, when it
did not yet received any frame with valid CRC on that channel.
Workaround this problem in the driver.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlegacy/3945.c b/drivers/net/wireless/iwlegacy/3945.c
index dc1e6da..c092033 100644
--- a/drivers/net/wireless/iwlegacy/3945.c
+++ b/drivers/net/wireless/iwlegacy/3945.c
@@ -331,6 +331,19 @@ il3945_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb)
 		return;
 	}
 
+	/*
+	 * Firmware will not transmit frame on passive channel, if it not yet
+	 * received some valid frame on that channel. When this error happen
+	 * we have to wait until firmware will unblock itself i.e. when we
+	 * note received beacon or other frame. We unblock queues in
+	 * il3945_pass_packet_to_mac80211 or in il_mac_bss_info_changed.
+	 */
+	if (unlikely((status & TX_STATUS_MSK) == TX_STATUS_FAIL_PASSIVE_NO_RX) &&
+	    il->iw_mode == NL80211_IFTYPE_STATION) {
+		il_stop_queues_by_reason(il, IL_STOP_REASON_PASSIVE);
+		D_INFO("Stopped queues - RX waiting on passive channel\n");
+	}
+
 	txq->time_stamp = jiffies;
 	info = IEEE80211_SKB_CB(txq->skbs[txq->q.read_ptr]);
 	ieee80211_tx_info_clear_status(info);
@@ -488,6 +501,11 @@ il3945_pass_packet_to_mac80211(struct il_priv *il, struct il_rx_buf *rxb,
 		return;
 	}
 
+	if (unlikely(test_bit(IL_STOP_REASON_PASSIVE, &il->stop_reason))) {
+		il_wake_queues_by_reason(il, IL_STOP_REASON_PASSIVE);
+		D_INFO("Woke queues - frame received on passive channel\n");
+	}
+
 	skb = dev_alloc_skb(128);
 	if (!skb) {
 		IL_ERR("dev_alloc_skb failed\n");
-- 
cgit v0.10.2


From d5346171d721bcfaab5843bf996ac6a379f7bd93 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 12 Jun 2013 16:48:25 +0200
Subject: Revert "iwl4965: workaround connection regression on passive channel"

This reverts commit dd9c46408fdc07098333655ff27edf8cac8d9fcf.

With "iwl{4965,3495): workaround for firmware frame tx rejection"
patches we can enable IEEE80211_HW_REPORTS_TX_ACK_STATUS again.

Tested-by: Jake Edge <jake@lwn.net>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 1c44bb5..d287fd2 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -5759,7 +5759,8 @@ il4965_mac_setup_register(struct il_priv *il, u32 max_probe_length)
 	hw->flags =
 	    IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_AMPDU_AGGREGATION |
 	    IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC | IEEE80211_HW_SPECTRUM_MGMT |
-	    IEEE80211_HW_SUPPORTS_PS | IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
+	    IEEE80211_HW_REPORTS_TX_ACK_STATUS | IEEE80211_HW_SUPPORTS_PS |
+	    IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
 	if (il->cfg->sku & IL_SKU_N)
 		hw->flags |=
 		    IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
-- 
cgit v0.10.2


From fa587d4b2f968b3719190a668a8707989855228d Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Thu, 6 Jun 2013 13:18:03 +0200
Subject: brcmfmac: Always use fifo_credits, also for requested credits.

Currently firmware requested credits do not require fifo credits.
From a buffer management point of view this is incorrect. So
firwmware requested credits require also fifo credits before the
packet can be transferred to the host.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
index 202869c..ce50686 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
@@ -179,11 +179,11 @@ ssize_t brcmf_debugfs_fws_stats_read(struct file *f, char __user *data,
 			fwstats->send_pkts[0], fwstats->send_pkts[1],
 			fwstats->send_pkts[2], fwstats->send_pkts[3],
 			fwstats->send_pkts[4],
-			fwstats->fifo_credits_sent[0],
-			fwstats->fifo_credits_sent[1],
-			fwstats->fifo_credits_sent[2],
-			fwstats->fifo_credits_sent[3],
-			fwstats->fifo_credits_sent[4]);
+			fwstats->requested_sent[0],
+			fwstats->requested_sent[1],
+			fwstats->requested_sent[2],
+			fwstats->requested_sent[3],
+			fwstats->requested_sent[4]);
 
 	return simple_read_from_buffer(data, count, ppos, buf, res);
 }
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
index 009c87b..451ebac 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
@@ -141,8 +141,7 @@ struct brcmf_fws_stats {
 	u32 header_pulls;
 	u32 pkt2bus;
 	u32 send_pkts[5];
-	u32 fifo_credits_sent[5];
-	u32 fifo_credits_back[6];
+	u32 requested_sent[5];
 	u32 generic_error;
 	u32 mac_update_failed;
 	u32 mac_ps_update_failed;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index ff92060..79d60a6 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -192,24 +192,21 @@ struct brcmf_skbuff_cb {
 /*
  * sk_buff control if flags
  *
- *	b[12]  - packet sent upon credit request.
- *	b[11]  - packet sent upon packet request.
+ *	b[11]  - packet sent upon firmware request.
  *	b[10]  - packet only contains signalling data.
  *	b[9]   - packet is a tx packet.
- *	b[8]   - packet uses FIFO credit (non-pspoll).
+ *	b[8]   - packet used requested credit
  *	b[7]   - interface in AP mode.
  *	b[3:0] - interface index.
  */
-#define BRCMF_SKB_IF_FLAGS_REQ_CREDIT_MASK	0x1000
-#define BRCMF_SKB_IF_FLAGS_REQ_CREDIT_SHIFT	12
 #define BRCMF_SKB_IF_FLAGS_REQUESTED_MASK	0x0800
 #define BRCMF_SKB_IF_FLAGS_REQUESTED_SHIFT	11
 #define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_MASK	0x0400
 #define BRCMF_SKB_IF_FLAGS_SIGNAL_ONLY_SHIFT	10
 #define BRCMF_SKB_IF_FLAGS_TRANSMIT_MASK        0x0200
 #define BRCMF_SKB_IF_FLAGS_TRANSMIT_SHIFT	9
-#define BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK	0x0100
-#define BRCMF_SKB_IF_FLAGS_CREDITCHECK_SHIFT	8
+#define BRCMF_SKB_IF_FLAGS_REQ_CREDIT_MASK	0x0100
+#define BRCMF_SKB_IF_FLAGS_REQ_CREDIT_SHIFT	8
 #define BRCMF_SKB_IF_FLAGS_IF_AP_MASK		0x0080
 #define BRCMF_SKB_IF_FLAGS_IF_AP_SHIFT		7
 #define BRCMF_SKB_IF_FLAGS_INDEX_MASK		0x000f
@@ -311,12 +308,15 @@ enum brcmf_fws_fifo {
  *	firmware suppress the packet as device is already in PS mode.
  * @BRCMF_FWS_TXSTATUS_FW_TOSSED:
  *	firmware tossed the packet.
+ * @BRCMF_FWS_TXSTATUS_HOST_TOSSED:
+ *	host tossed the packet.
  */
 enum brcmf_fws_txstatus {
 	BRCMF_FWS_TXSTATUS_DISCARD,
 	BRCMF_FWS_TXSTATUS_CORE_SUPPRESS,
 	BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS,
-	BRCMF_FWS_TXSTATUS_FW_TOSSED
+	BRCMF_FWS_TXSTATUS_FW_TOSSED,
+	BRCMF_FWS_TXSTATUS_HOST_TOSSED
 };
 
 enum brcmf_fws_fcmode {
@@ -639,6 +639,7 @@ static void brcmf_fws_init_mac_descriptor(struct brcmf_fws_mac_descriptor *desc,
 	desc->occupied = 1;
 	desc->state = BRCMF_FWS_STATE_OPEN;
 	desc->requested_credit = 0;
+	desc->requested_packet = 0;
 	/* depending on use may need ifp->bssidx instead */
 	desc->interface_id = ifidx;
 	desc->ac_bitmap = 0xff; /* update this when handling APSD */
@@ -654,6 +655,7 @@ void brcmf_fws_clear_mac_descriptor(struct brcmf_fws_mac_descriptor *desc)
 	desc->occupied = 0;
 	desc->state = BRCMF_FWS_STATE_CLOSE;
 	desc->requested_credit = 0;
+	desc->requested_packet = 0;
 }
 
 static struct brcmf_fws_mac_descriptor *
@@ -1050,35 +1052,35 @@ static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type,
 	return BRCMF_FWS_RET_OK_SCHEDULE;
 }
 
-static int brcmf_fws_macdesc_use_credit(struct brcmf_fws_mac_descriptor *entry,
-					struct sk_buff *skb)
+static void
+brcmf_fws_macdesc_use_req_credit(struct brcmf_fws_mac_descriptor *entry,
+				 struct sk_buff *skb)
 {
-	int use_credit = 1;
-
-	if (entry->state == BRCMF_FWS_STATE_CLOSE) {
-		if (entry->requested_credit > 0) {
-			/*
-			 * if the packet was pulled out while destination is in
-			 * closed state but had a non-zero packets requested,
-			 * then this should not count against the FIFO credit.
-			 * That is due to the fact that the firmware will
-			 * most likely hold onto this packet until a suitable
-			 * time later to push it to the appropriate AC FIFO.
-			 */
-			entry->requested_credit--;
-			brcmf_skb_if_flags_set_field(skb, REQ_CREDIT, 1);
-			use_credit = 0;
-		} else if (entry->requested_packet > 0) {
-			entry->requested_packet--;
-			brcmf_skb_if_flags_set_field(skb, REQUESTED, 1);
-			use_credit = 0;
-		}
+	if (entry->requested_credit > 0) {
+		entry->requested_credit--;
+		brcmf_skb_if_flags_set_field(skb, REQUESTED, 1);
+		brcmf_skb_if_flags_set_field(skb, REQ_CREDIT, 1);
+		if (entry->state != BRCMF_FWS_STATE_CLOSE)
+			brcmf_err("requested credit set while mac not closed!\n");
+	} else if (entry->requested_packet > 0) {
+		entry->requested_packet--;
+		brcmf_skb_if_flags_set_field(skb, REQUESTED, 1);
+		brcmf_skb_if_flags_set_field(skb, REQ_CREDIT, 0);
+		if (entry->state != BRCMF_FWS_STATE_CLOSE)
+			brcmf_err("requested packet set while mac not closed!\n");
 	} else {
-		WARN_ON(entry->requested_credit);
-		WARN_ON(entry->requested_packet);
+		brcmf_skb_if_flags_set_field(skb, REQUESTED, 0);
+		brcmf_skb_if_flags_set_field(skb, REQ_CREDIT, 0);
 	}
-	brcmf_skb_if_flags_set_field(skb, CREDITCHECK, use_credit);
-	return use_credit;
+}
+
+static void brcmf_fws_macdesc_return_req_credit(struct sk_buff *skb)
+{
+	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
+
+	if ((brcmf_skb_if_flags_get_field(skb, REQ_CREDIT)) &&
+	    (entry->state == BRCMF_FWS_STATE_CLOSE))
+		entry->requested_credit++;
 }
 
 static void brcmf_fws_return_credits(struct brcmf_fws_info *fws,
@@ -1124,25 +1126,6 @@ static void brcmf_fws_schedule_deq(struct brcmf_fws_info *fws)
 		queue_work(fws->fws_wq, &fws->fws_dequeue_work);
 }
 
-static void brcmf_fws_skb_pickup_credit(struct brcmf_fws_info *fws, int fifo,
-				     struct sk_buff *p)
-{
-	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(p)->mac;
-
-	if (brcmf_skbcb(p)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
-		brcmf_fws_return_credits(fws, fifo, 1);
-	else if (brcmf_skb_if_flags_get_field(p, REQ_CREDIT) &&
-		 entry->state == BRCMF_FWS_STATE_CLOSE)
-		/*
-		 * if this packet did not count against FIFO credit, it
-		 * could have taken a requested_credit from the destination
-		 * entry (for pspoll etc.)
-		 */
-		entry->requested_credit++;
-
-	brcmf_fws_schedule_deq(fws);
-}
-
 static int brcmf_fws_enq(struct brcmf_fws_info *fws,
 			 enum brcmf_fws_skb_state state, int fifo,
 			 struct sk_buff *p)
@@ -1224,7 +1207,7 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
 		if  (p == NULL)
 			continue;
 
-		brcmf_fws_macdesc_use_credit(entry, p);
+		brcmf_fws_macdesc_use_req_credit(entry, p);
 
 		/* move dequeue position to ensure fair round-robin */
 		fws->deq_node_pos[fifo] = (node_pos + i + 1) % num_nodes;
@@ -1313,7 +1296,8 @@ brcmf_fws_txs_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 	} else if (flags == BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS) {
 		fws->stats.txs_supp_ps++;
 		remove_from_hanger = false;
-	} else if (flags == BRCMF_FWS_TXSTATUS_FW_TOSSED)
+	} else if ((flags == BRCMF_FWS_TXSTATUS_FW_TOSSED) ||
+		   (flags == BRCMF_FWS_TXSTATUS_HOST_TOSSED))
 		fws->stats.txs_tossed++;
 	else
 		brcmf_err("unexpected txstatus\n");
@@ -1340,9 +1324,13 @@ brcmf_fws_txs_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 
 	/* pick up the implicit credit from this packet */
 	fifo = brcmf_skb_htod_tag_get_field(skb, FIFO);
-	if (fws->fcmode == BRCMF_FWS_FCMODE_IMPLIED_CREDIT ||
-	    !(brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK))
-		brcmf_fws_skb_pickup_credit(fws, fifo, skb);
+	if ((fws->fcmode == BRCMF_FWS_FCMODE_IMPLIED_CREDIT) ||
+	    (brcmf_skb_if_flags_get_field(skb, REQ_CREDIT)) ||
+	    (flags == BRCMF_FWS_TXSTATUS_HOST_TOSSED)) {
+		brcmf_fws_return_credits(fws, fifo, 1);
+		brcmf_fws_schedule_deq(fws);
+	}
+	brcmf_fws_macdesc_return_req_credit(skb);
 
 	if (!remove_from_hanger)
 		ret = brcmf_fws_txstatus_suppressed(fws, fifo, skb, genbit);
@@ -1588,7 +1576,7 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
 	brcmf_skb_htod_tag_set_field(p, GENERATION, entry->generation);
 	flags = BRCMF_FWS_HTOD_FLAG_PKTFROMHOST;
-	if (!(skcb->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)) {
+	if (brcmf_skb_if_flags_get_field(p, REQUESTED)) {
 		/*
 		 * Indicate that this packet is being sent in response to an
 		 * explicit request from the firmware side.
@@ -1636,6 +1624,7 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
 
 	state = brcmf_skbcb(skb)->state;
 	entry = brcmf_skbcb(skb)->mac;
+	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
 
 	if (entry != NULL) {
 		if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED) {
@@ -1647,8 +1636,6 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
 				rc = -ENOSPC;
 			}
 		} else {
-			hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
-
 			/* delay-q packets are going to delay-q */
 			pktout = brcmu_pktq_penq_head(&entry->psq,
 						      2 * fifo, skb);
@@ -1670,11 +1657,13 @@ brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
 	}
 
 	if (rc) {
-		brcmf_fws_bustxfail(fws, skb);
 		fws->stats.rollback_failed++;
+		brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_HOST_TOSSED,
+				      hslot, 0);
 	} else {
 		fws->stats.rollback_success++;
-		brcmf_fws_skb_pickup_credit(fws, fifo, skb);
+		brcmf_fws_return_credits(fws, fifo, 1);
+		brcmf_fws_macdesc_return_req_credit(skb);
 	}
 }
 
@@ -1708,26 +1697,28 @@ static int brcmf_fws_consume_credit(struct brcmf_fws_info *fws, int fifo,
 	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
 	int *credit = &fws->fifo_credit[fifo];
 
-	if (!brcmf_fws_macdesc_use_credit(entry, skb))
-		return 0;
-
 	if (fifo != BRCMF_FWS_FIFO_AC_BE)
 		fws->borrow_defer_timestamp = jiffies +
 					      BRCMF_FWS_BORROW_DEFER_PERIOD;
 
 	if (!(*credit)) {
 		/* Try to borrow a credit from other queue */
-		if (fifo == BRCMF_FWS_FIFO_AC_BE &&
-		    brcmf_fws_borrow_credit(fws) == 0)
-			return 0;
-
-		brcmf_dbg(DATA, "exit: ac=%d, credits depleted\n", fifo);
-		return -ENAVAIL;
+		if (fifo != BRCMF_FWS_FIFO_AC_BE ||
+		    (brcmf_fws_borrow_credit(fws) != 0)) {
+			brcmf_dbg(DATA, "ac=%d, credits depleted\n", fifo);
+			return -ENAVAIL;
+		}
+	} else {
+		(*credit)--;
+		if (!(*credit))
+			fws->fifo_credit_map &= ~(1 << fifo);
 	}
-	(*credit)--;
-	if (!(*credit))
-		fws->fifo_credit_map &= ~(1 << fifo);
-	brcmf_dbg(DATA, "exit: ac=%d, credits=%d\n", fifo, *credit);
+
+	brcmf_fws_macdesc_use_req_credit(entry, skb);
+
+	brcmf_dbg(DATA, "ac=%d, credits=%02d:%02d:%02d:%02d\n", fifo,
+		  fws->fifo_credit[0], fws->fifo_credit[1],
+		  fws->fifo_credit[2], fws->fifo_credit[3]);
 	return 0;
 }
 
@@ -1764,8 +1755,8 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 	entry->seq[fifo]++;
 	fws->stats.pkt2bus++;
 	fws->stats.send_pkts[fifo]++;
-	if (brcmf_skbcb(skb)->if_flags & BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
-		fws->stats.fifo_credits_sent[fifo]++;
+	if (brcmf_skb_if_flags_get_field(skb, REQUESTED))
+		fws->stats.requested_sent[fifo]++;
 
 	return rc;
 
@@ -1888,10 +1879,7 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 			skb = brcmf_fws_deq(fws, fifo);
 			if (!skb)
 				break;
-			if (brcmf_skbcb(skb)->if_flags &
-			    BRCMF_SKB_IF_FLAGS_CREDITCHECK_MASK)
-				fws->fifo_credit[fifo]--;
-
+			fws->fifo_credit[fifo]--;
 			if (brcmf_fws_commit_skb(fws, fifo, skb))
 				break;
 			if (fws->bus_flow_blocked)
@@ -2023,20 +2011,15 @@ bool brcmf_fws_fc_active(struct brcmf_fws_info *fws)
 void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
 {
 	ulong flags;
-	int fifo;
+	u32 hslot;
 
 	if (brcmf_skbcb(skb)->state == BRCMF_FWS_SKBSTATE_TIM) {
 		brcmu_pkt_buf_free_skb(skb);
 		return;
 	}
 	brcmf_fws_lock(fws->drvr, flags);
-	brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_FW_TOSSED,
-				   brcmf_skb_htod_tag_get_field(skb, HSLOT), 0);
-	/* the packet never reached firmware so reclaim credit */
-	if (fws->fcmode == BRCMF_FWS_FCMODE_EXPLICIT_CREDIT) {
-		fifo = brcmf_skb_htod_tag_get_field(skb, FIFO);
-		brcmf_fws_skb_pickup_credit(fws, fifo, skb);
-	}
+	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
+	brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_HOST_TOSSED, hslot, 0);
 	brcmf_fws_unlock(fws->drvr, flags);
 }
 
-- 
cgit v0.10.2


From 5631becbb8703d73239e097d222b183aa4f24e40 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Thu, 6 Jun 2013 13:18:07 +0200
Subject: brcmfmac: add debugfs statistics for firmware-signalling

Added statistics for flow-control and packets dropped by the
driver.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
index ce50686..c37b9d6 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c
@@ -156,8 +156,11 @@ ssize_t brcmf_debugfs_fws_stats_read(struct file *f, char __user *data,
 			"txs_suppr_core:    %u\n"
 			"txs_suppr_ps:      %u\n"
 			"txs_tossed:        %u\n"
+			"txs_host_tossed:   %u\n"
+			"bus_flow_block:    %u\n"
+			"fws_flow_block:    %u\n"
 			"send_pkts:         BK:%u BE:%u VO:%u VI:%u BCMC:%u\n"
-			"fifo_credits_sent: BK:%u BE:%u VO:%u VI:%u BCMC:%u\n",
+			"requested_sent:    BK:%u BE:%u VO:%u VI:%u BCMC:%u\n",
 			fwstats->header_pulls,
 			fwstats->header_only_pkt,
 			fwstats->tlv_parse_failed,
@@ -176,6 +179,9 @@ ssize_t brcmf_debugfs_fws_stats_read(struct file *f, char __user *data,
 			fwstats->txs_supp_core,
 			fwstats->txs_supp_ps,
 			fwstats->txs_tossed,
+			fwstats->txs_host_tossed,
+			fwstats->bus_flow_block,
+			fwstats->fws_flow_block,
 			fwstats->send_pkts[0], fwstats->send_pkts[1],
 			fwstats->send_pkts[2], fwstats->send_pkts[3],
 			fwstats->send_pkts[4],
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
index 451ebac..0af1f5d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.h
@@ -157,6 +157,9 @@ struct brcmf_fws_stats {
 	u32 txs_supp_core;
 	u32 txs_supp_ps;
 	u32 txs_tossed;
+	u32 txs_host_tossed;
+	u32 bus_flow_block;
+	u32 fws_flow_block;
 };
 
 struct brcmf_pub;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 79d60a6..70f70ce 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -584,7 +584,7 @@ static int brcmf_fws_hanger_mark_suppressed(struct brcmf_fws_hanger *h,
 	if (slot_id >= BRCMF_FWS_HANGER_MAXITEMS)
 		return -ENOENT;
 
-	if (h->items[slot_id].state != BRCMF_FWS_HANGER_ITEM_STATE_INUSE) {
+	if (h->items[slot_id].state == BRCMF_FWS_HANGER_ITEM_STATE_FREE) {
 		brcmf_err("entry not in use\n");
 		return -EINVAL;
 	}
@@ -894,8 +894,10 @@ brcmf_fws_flow_control_check(struct brcmf_fws_info *fws, struct pktq *pq,
 		brcmf_txflowblock_if(ifp,
 				     BRCMF_NETIF_STOP_REASON_FWS_FC, false);
 	if (!(ifp->netif_stop & BRCMF_NETIF_STOP_REASON_FWS_FC) &&
-	    pq->len >= BRCMF_FWS_FLOWCONTROL_HIWATER)
+	    pq->len >= BRCMF_FWS_FLOWCONTROL_HIWATER) {
+		fws->stats.fws_flow_block++;
 		brcmf_txflowblock_if(ifp, BRCMF_NETIF_STOP_REASON_FWS_FC, true);
+	}
 	return;
 }
 
@@ -1296,9 +1298,10 @@ brcmf_fws_txs_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 	} else if (flags == BRCMF_FWS_TXSTATUS_FW_PS_SUPPRESS) {
 		fws->stats.txs_supp_ps++;
 		remove_from_hanger = false;
-	} else if ((flags == BRCMF_FWS_TXSTATUS_FW_TOSSED) ||
-		   (flags == BRCMF_FWS_TXSTATUS_HOST_TOSSED))
+	} else if (flags == BRCMF_FWS_TXSTATUS_FW_TOSSED)
 		fws->stats.txs_tossed++;
+	else if (flags == BRCMF_FWS_TXSTATUS_HOST_TOSSED)
+		fws->stats.txs_host_tossed++;
 	else
 		brcmf_err("unexpected txstatus\n");
 
@@ -2030,4 +2033,6 @@ void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked)
 	fws->bus_flow_blocked = flow_blocked;
 	if (!flow_blocked)
 		brcmf_fws_schedule_deq(fws);
+	else
+		fws->stats.bus_flow_block++;
 }
-- 
cgit v0.10.2


From c70eba74532a9b54583689fead6e2e8f3a86e1c5 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 12 Jun 2013 14:11:16 -0700
Subject: igmp: fix new sparse errors

Fix following sparse errors :

net/ipv4/igmp.c:1222:25: warning: cast from restricted __be32
net/ipv4/igmp.c:1234:31: warning: incorrect type in assignment (different address spaces)
net/ipv4/igmp.c:1234:31:    expected struct ip_mc_list [noderef] <asn:4>*next_hash
net/ipv4/igmp.c:1234:31:    got struct ip_mc_list *<noident>
net/ipv4/igmp.c:1250:31: warning: incorrect type in assignment (different address spaces)
net/ipv4/igmp.c:1250:31:    expected struct ip_mc_list [noderef] <asn:4>*next_hash
net/ipv4/igmp.c:1250:31:    got struct ip_mc_list *<noident>
net/ipv4/igmp.c:2380:37: warning: cast from restricted __be32

These were added by commit e9897071350bd9
("igmp: hash a hash table to speedup ip_check_mc_rcu()")

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index a09190d..cd71190 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1219,7 +1219,7 @@ static void igmp_group_added(struct ip_mc_list *im)
 
 static u32 ip_mc_hash(const struct ip_mc_list *im)
 {
-	return hash_32((u32)im->multiaddr, MC_HASH_SZ_LOG);
+	return hash_32((__force u32)im->multiaddr, MC_HASH_SZ_LOG);
 }
 
 static void ip_mc_hash_add(struct in_device *in_dev,
@@ -1231,7 +1231,7 @@ static void ip_mc_hash_add(struct in_device *in_dev,
 	mc_hash = rtnl_dereference(in_dev->mc_hash);
 	if (mc_hash) {
 		hash = ip_mc_hash(im);
-		im->next_hash = rtnl_dereference(mc_hash[hash]);
+		im->next_hash = mc_hash[hash];
 		rcu_assign_pointer(mc_hash[hash], im);
 		return;
 	}
@@ -1247,7 +1247,7 @@ static void ip_mc_hash_add(struct in_device *in_dev,
 
 	for_each_pmc_rtnl(in_dev, im) {
 		hash = ip_mc_hash(im);
-		im->next_hash = rtnl_dereference(mc_hash[hash]);
+		im->next_hash = mc_hash[hash];
 		RCU_INIT_POINTER(mc_hash[hash], im);
 	}
 
@@ -2377,7 +2377,7 @@ int ip_check_mc_rcu(struct in_device *in_dev, __be32 mc_addr, __be32 src_addr, u
 
 	mc_hash = rcu_dereference(in_dev->mc_hash);
 	if (mc_hash) {
-		u32 hash = hash_32((u32)mc_addr, MC_HASH_SZ_LOG);
+		u32 hash = hash_32((__force u32)mc_addr, MC_HASH_SZ_LOG);
 
 		for (im = rcu_dereference(mc_hash[hash]);
 		     im != NULL;
-- 
cgit v0.10.2


From 8f728d7934c77f63e89abcc96b46a7a98416d5c1 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Thu, 13 Jun 2013 00:55:34 +0400
Subject: sh_eth: split 'sh_eth_netdev_ops'

Commit 9f86134155047720a3685cda21467f68695152d2 (sh_eth: remove SH_ETH_HAS_TSU)
removes 'const' from 'sh_eth_netdev_ops'  and modifies it in case TSU registers
are present. I've originally suggested to Iwamatsu-san to split  this structure
in two instead and afterwards Dave M. suggested doing the same.
Split 'sh_eth_netdev_ops_tsu' from 'sh_eth_netdev_ops', making both 'const', and
assigning 'ndev->detdev_ops'  depending on the presence of TSU registers.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 43d8490..67a9e96 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2486,7 +2486,7 @@ static const u16 *sh_eth_get_register_offset(int register_type)
 	return reg_offset;
 }
 
-static struct net_device_ops sh_eth_netdev_ops = {
+static const struct net_device_ops sh_eth_netdev_ops = {
 	.ndo_open		= sh_eth_open,
 	.ndo_stop		= sh_eth_close,
 	.ndo_start_xmit		= sh_eth_start_xmit,
@@ -2498,6 +2498,21 @@ static struct net_device_ops sh_eth_netdev_ops = {
 	.ndo_change_mtu		= eth_change_mtu,
 };
 
+static const struct net_device_ops sh_eth_netdev_ops_tsu = {
+	.ndo_open		= sh_eth_open,
+	.ndo_stop		= sh_eth_close,
+	.ndo_start_xmit		= sh_eth_start_xmit,
+	.ndo_get_stats		= sh_eth_get_stats,
+	.ndo_set_rx_mode	= sh_eth_set_multicast_list,
+	.ndo_vlan_rx_add_vid	= sh_eth_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid	= sh_eth_vlan_rx_kill_vid,
+	.ndo_tx_timeout		= sh_eth_tx_timeout,
+	.ndo_do_ioctl		= sh_eth_do_ioctl,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+};
+
 static int sh_eth_drv_probe(struct platform_device *pdev)
 {
 	int ret, devno = 0;
@@ -2568,14 +2583,10 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	sh_eth_set_default_cpu_data(mdp->cd);
 
 	/* set function */
-	if (mdp->cd->tsu) {
-		sh_eth_netdev_ops.ndo_set_rx_mode = sh_eth_set_multicast_list;
-		sh_eth_netdev_ops.ndo_vlan_rx_add_vid = sh_eth_vlan_rx_add_vid;
-		sh_eth_netdev_ops.ndo_vlan_rx_kill_vid =
-			sh_eth_vlan_rx_kill_vid;
-	}
-
-	ndev->netdev_ops = &sh_eth_netdev_ops;
+	if (mdp->cd->tsu)
+		ndev->netdev_ops = &sh_eth_netdev_ops_tsu;
+	else
+		ndev->netdev_ops = &sh_eth_netdev_ops;
 	SET_ETHTOOL_OPS(ndev, &sh_eth_ethtool_ops);
 	ndev->watchdog_timeo = TX_TIMEOUT;
 
-- 
cgit v0.10.2


From 5b9b6263775d45ccc0c8b27344bfb1a97cf6f725 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 12 Jun 2013 14:23:15 -0700
Subject: gro: remove a sparse error

Fix following sparse error :

net/ipv4/af_inet.c:1410:59: warning: restricted __be16 degrades to
integer

added in commit db8caf3dbc77599
("gro: should aggregate frames without DF")

Reported-by: kbuild test robot <fengguang.wu@intel.com>
From: Eric Dumazet <edumazet@google.com>

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 5598b06..b4d0be2 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1407,7 +1407,7 @@ static struct sk_buff **inet_gro_receive(struct sk_buff **head,
 		NAPI_GRO_CB(p)->flush |=
 			(iph->ttl ^ iph2->ttl) |
 			(iph->tos ^ iph2->tos) |
-			((iph->frag_off ^ iph2->frag_off) & htons(IP_DF)) |
+			(__force int)((iph->frag_off ^ iph2->frag_off) & htons(IP_DF)) |
 			((u16)(ntohs(iph2->id) + NAPI_GRO_CB(p)->count) ^ id);
 
 		NAPI_GRO_CB(p)->flush |= flush;
-- 
cgit v0.10.2


From 7c0cadc69ca2ac8893aa162ee80d92a805840909 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 12 Jun 2013 14:31:39 -0700
Subject: udp: fix two sparse errors

commit ba418fa357a7b3c ("soreuseport: UDP/IPv4 implementation")
added following sparse errors :

net/ipv4/udp.c:433:60: warning: cast from restricted __be16
net/ipv4/udp.c:433:60: warning: incorrect type in argument 1 (different base types)
net/ipv4/udp.c:433:60:    expected unsigned short [unsigned] [usertype] val
net/ipv4/udp.c:433:60:    got restricted __be16 [usertype] sport
net/ipv4/udp.c:433:60: warning: cast from restricted __be16
net/ipv4/udp.c:433:60: warning: cast from restricted __be16
net/ipv4/udp.c:514:60: warning: cast from restricted __be16
net/ipv4/udp.c:514:60: warning: incorrect type in argument 1 (different base types)
net/ipv4/udp.c:514:60:    expected unsigned short [unsigned] [usertype] val
net/ipv4/udp.c:514:60:    got restricted __be16 [usertype] sport
net/ipv4/udp.c:514:60: warning: cast from restricted __be16
net/ipv4/udp.c:514:60: warning: cast from restricted __be16

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index f65bc32..959502a 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -430,7 +430,7 @@ begin:
 			reuseport = sk->sk_reuseport;
 			if (reuseport) {
 				hash = inet_ehashfn(net, daddr, hnum,
-						    saddr, htons(sport));
+						    saddr, sport);
 				matches = 1;
 			}
 		} else if (score == badness && reuseport) {
@@ -511,7 +511,7 @@ begin:
 			reuseport = sk->sk_reuseport;
 			if (reuseport) {
 				hash = inet_ehashfn(net, daddr, hnum,
-						    saddr, htons(sport));
+						    saddr, sport);
 				matches = 1;
 			}
 		} else if (score == badness && reuseport) {
-- 
cgit v0.10.2


From 274038f8c94c493e2977983e2aecb5f5f0778479 Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@parallels.com>
Date: Tue, 11 Jun 2013 14:41:24 +0400
Subject: tun: Report "persist" flag to userspace

The TUN_PERSIST flag is not reported at all -- both TUNGETIFF, and sysfs
"flags" attribute skip one. Knowing whether a device is persistent or not
is critical for checkpoint-restore, thus I propose to add the read-only
IFF_PERSIST one for this.

Setting this new IFF_PERSIST is hardly possible, as TUNSETIFF doesn't check
for unknown flags being zero and thus there can be trash.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 89776c5..b90a731 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1530,6 +1530,9 @@ static int tun_flags(struct tun_struct *tun)
 	if (tun->flags & TUN_TAP_MQ)
 		flags |= IFF_MULTI_QUEUE;
 
+	if (tun->flags & TUN_PERSIST)
+		flags |= IFF_PERSIST;
+
 	return flags;
 }
 
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 2835b85..82334f8 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -68,6 +68,8 @@
 #define IFF_MULTI_QUEUE 0x0100
 #define IFF_ATTACH_QUEUE 0x0200
 #define IFF_DETACH_QUEUE 0x0400
+/* read-only flag */
+#define IFF_PERSIST	0x0800
 
 /* Features for GSO (TUNSETOFFLOAD). */
 #define TUN_F_CSUM	0x01	/* You can hand me unchecksummed packets. */
-- 
cgit v0.10.2


From 944a1376b6ca1f00cc67f7d319afd55d5d9afba5 Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@parallels.com>
Date: Tue, 11 Jun 2013 17:01:08 +0400
Subject: tun: Turn tun_flow_init() into void fn

This routine doesn't fail since 9fdc6bef (tuntap: dont use a private kmem_cache)
so it makes sense to compact the code a little bit.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index b90a731..a344270 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -841,7 +841,7 @@ static const struct net_device_ops tap_netdev_ops = {
 #endif
 };
 
-static int tun_flow_init(struct tun_struct *tun)
+static void tun_flow_init(struct tun_struct *tun)
 {
 	int i;
 
@@ -852,8 +852,6 @@ static int tun_flow_init(struct tun_struct *tun)
 	setup_timer(&tun->flow_gc_timer, tun_flow_cleanup, (unsigned long)tun);
 	mod_timer(&tun->flow_gc_timer,
 		  round_jiffies_up(jiffies + tun->ageing_time));
-
-	return 0;
 }
 
 static void tun_flow_uninit(struct tun_struct *tun)
@@ -1662,10 +1660,7 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 			goto err_free_dev;
 
 		tun_net_init(dev);
-
-		err = tun_flow_init(tun);
-		if (err < 0)
-			goto err_free_dev;
+		tun_flow_init(tun);
 
 		dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST |
 			TUN_USER_FEATURES;
-- 
cgit v0.10.2


From e3d73bcedfdf66d21349fee00241b0931d28a943 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Tue, 11 Jun 2013 18:54:39 +0800
Subject: net: add doc for ip_early_demux sysctl

commit 6648bd7e0e62c0c8c03b (ipv4: Add sysctl knob to control
early socket demux) introduced such sysctl, but forgot to add
doc into Documentation/networking/ip-sysctl.txt. This patch adds it.

Basically I grab the doc from the description of commit 41063e9dd11956f2d285
(ipv4: Early TCP socket demux.) and the above commit.

Cc: Eric Dumazet <edumazet@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 9cea5d3..36e5a40 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -685,6 +685,15 @@ ip_dynaddr - BOOLEAN
 	occurs.
 	Default: 0
 
+ip_early_demux - BOOLEAN
+	Optimize input packet processing down to one demux for
+	certain kinds of local sockets.  Currently we only do this
+	for established TCP sockets.
+
+	It may add an additional cost for pure routing workloads that
+	reduces overall throughput, in such case you should disable it.
+	Default: 1
+
 icmp_echo_ignore_all - BOOLEAN
 	If set non-zero, then the kernel will ignore all ICMP ECHO
 	requests sent to it.
-- 
cgit v0.10.2


From 661eb3811df568161399af0048f1ecb4ac073687 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 12 Jun 2013 22:47:56 +0200
Subject: mac80211: fix TX aggregation TID struct leak

Ben reports that kmemleak is saying TX aggregation TID
structs are leaked. Given his workload, I suspect that
they're leaked because stations are destroyed before
their aggregation sessions get a chance to start. Fix
this by simply freeing structs that are not used yet.

Reported-by: Ben Greear <greearb@candelatech.com>
Tested-by:  Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index b429798..aaf68d2 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -149,6 +149,7 @@ static void cleanup_single_sta(struct sta_info *sta)
 	 * directly by station destruction.
 	 */
 	for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
+		kfree(sta->ampdu_mlme.tid_start_tx[i]);
 		tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]);
 		if (!tid_tx)
 			continue;
-- 
cgit v0.10.2


From ca15febfe98f7c681ac345fc1d2ee1b8decaa493 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 13 Jun 2013 10:05:38 +0800
Subject: netlink: make compare exist all the time

Commit da12c90e099789a63073fc82a19542ce54d4efb9
"netlink: Add compare function for netlink_table"
only set compare at the time we create kernel netlink,
and reset compare to NULL at the time we finially
release netlink socket, but netlink_lookup wants
the compare exist always.

So we should set compare after we allocate nl_table,
and never reset it. make comapre exist all the time.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 9b6b115..8978755 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1174,7 +1174,6 @@ static int netlink_release(struct socket *sock)
 			kfree_rcu(old, rcu);
 			nl_table[sk->sk_protocol].module = NULL;
 			nl_table[sk->sk_protocol].bind = NULL;
-			nl_table[sk->sk_protocol].compare = NULL;
 			nl_table[sk->sk_protocol].flags = 0;
 			nl_table[sk->sk_protocol].registered = 0;
 		}
@@ -2326,7 +2325,6 @@ __netlink_kernel_create(struct net *net, int unit, struct module *module,
 		rcu_assign_pointer(nl_table[unit].listeners, listeners);
 		nl_table[unit].cb_mutex = cb_mutex;
 		nl_table[unit].module = module;
-		nl_table[unit].compare = netlink_compare;
 		if (cfg) {
 			nl_table[unit].bind = cfg->bind;
 			nl_table[unit].flags = cfg->flags;
@@ -2973,6 +2971,8 @@ static int __init netlink_proto_init(void)
 		hash->shift = 0;
 		hash->mask = 0;
 		hash->rehash_time = jiffies;
+
+		nl_table[i].compare = netlink_compare;
 	}
 
 	netlink_add_usersock_entry();
-- 
cgit v0.10.2


From 2c928e0e8dd6b3661870bfacb53d1c330a1a7411 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms@verge.net.au>
Date: Thu, 13 Jun 2013 16:04:33 +0900
Subject: sctp: Correct byte order of access to skb->{network,
 transport}_header

Corrects an byte order conflict introduced by
158874cac61245b84e939c92c53db7000122b7b0
("sctp: Correct access to skb->{network, transport}_header").
The values in question are host byte order.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 8ee553b..fffc7b6 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -153,7 +153,7 @@ SCTP_STATIC void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	struct sctp_association *asoc;
 	struct sctp_transport *transport;
 	struct ipv6_pinfo *np;
-	__be16 saveip, savesctp;
+	__u16 saveip, savesctp;
 	int err;
 	struct net *net = dev_net(skb->dev);
 
-- 
cgit v0.10.2


From d9a90a3105eb6ca89aab74223e6526ab4a5e44b5 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Thu, 13 Jun 2013 14:23:35 +0800
Subject: macvtap: slient sparse warnings

This patch silents the following sparse warnings:

drivers/net/macvtap.c:98:9: warning: incorrect type in assignment (different
address spaces)
drivers/net/macvtap.c:98:9:    expected struct macvtap_queue *<noident>
drivers/net/macvtap.c:98:9:    got struct macvtap_queue [noderef]
<asn:4>*<noident>
drivers/net/macvtap.c:120:9: warning: incorrect type in assignment (different
address spaces)
drivers/net/macvtap.c:120:9:    expected struct macvtap_queue *<noident>
drivers/net/macvtap.c:120:9:    got struct macvtap_queue [noderef]
<asn:4>*<noident>
drivers/net/macvtap.c:151:22: error: incompatible types in comparison expression
(different address spaces)
drivers/net/macvtap.c:233:23: error: incompatible types in comparison expression
(different address spaces)
drivers/net/macvtap.c:243:23: error: incompatible types in comparison expression
(different address spaces)
drivers/net/macvtap.c:247:15: error: incompatible types in comparison expression
(different address spaces)
  CC [M]  drivers/net/macvtap.o
drivers/net/macvlan.c:232:24: error: incompatible types in comparison expression
(different address spaces)

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 992151c..edcbf1c 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -429,7 +429,7 @@ static int macvtap_open(struct inode *inode, struct file *file)
 	if (!q)
 		goto out;
 
-	q->sock.wq = &q->wq;
+	RCU_INIT_POINTER(q->sock.wq, &q->wq);
 	init_waitqueue_head(&q->wq.wait);
 	q->sock.type = SOCK_RAW;
 	q->sock.state = SS_CONNECTED;
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index 1912133..f49a9f6 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -70,7 +70,7 @@ struct macvlan_dev {
 	int (*receive)(struct sk_buff *skb);
 	int (*forward)(struct net_device *dev, struct sk_buff *skb);
 	/* This array tracks active taps. */
-	struct macvtap_queue	*taps[MAX_MACVTAP_QUEUES];
+	struct macvtap_queue	__rcu *taps[MAX_MACVTAP_QUEUES];
 	/* This list tracks all taps (both enabled and disabled) */
 	struct list_head	queue_list;
 	int			numvtaps;
-- 
cgit v0.10.2


From f57855a54fb1e7529b32821f021d351e01dcfe39 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Thu, 13 Jun 2013 14:23:36 +0800
Subject: macvtap: fix uninitialized return value macvtap_ioctl_set_queue()

Return -EINVAL on illegal flag instead of uninitialized value. This fixes the
kbuild test warning.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index edcbf1c..5a76f20 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -969,6 +969,8 @@ static int macvtap_ioctl_set_queue(struct file *file, unsigned int flags)
 		ret = macvtap_enable_queue(vlan->dev, file, q);
 	else if (flags & IFF_DETACH_QUEUE)
 		ret = macvtap_disable_queue(q);
+	else
+		ret = -EINVAL;
 
 	macvtap_put_vlan(vlan);
 	return ret;
-- 
cgit v0.10.2


From 8c367fcbe6549195d2eb11e62bea233f811aad41 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 10 Jun 2013 17:34:13 +0100
Subject: cxgb4: Do not set net_device::dev_id to VI index

net_device::dev_id should not be used merely to indicate a VI index,
as it affects the way the local part of IPv6 addresses is normally
generated.

This field was intended for use where multiple devices may share a
single assigned MAC address and need to have different IPv6 addresses.
T4 VIs each have their own MAC address.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index bff89a4..4cbb2f9 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -3782,7 +3782,6 @@ int t4_port_init(struct adapter *adap, int mbox, int pf, int vf)
 		p->lport = j;
 		p->rss_size = rss_size;
 		memcpy(adap->port[i]->dev_addr, addr, ETH_ALEN);
-		adap->port[i]->dev_id = j;
 
 		ret = ntohl(c.u.info.lstatus_to_modtype);
 		p->mdio_addr = (ret & FW_PORT_CMD_MDIOCAP) ?
-- 
cgit v0.10.2


From e562078a19226660299eeaf40a50752672214f11 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 12 Jun 2013 14:08:44 -0700
Subject: mac80211: Ensure tid_start_tx is protected by sta->lock

All accesses of the tid_start_tx lock should be protected
by sta->lock if there is any chance that another thread
could still be accessing the sta object.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 75dff33..f83534f 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -281,13 +281,14 @@ void ieee80211_ba_session_work(struct work_struct *work)
 				sta, tid, WLAN_BACK_RECIPIENT,
 				WLAN_REASON_UNSPECIFIED, true);
 
+		spin_lock_bh(&sta->lock);
+
 		tid_tx = sta->ampdu_mlme.tid_start_tx[tid];
 		if (tid_tx) {
 			/*
 			 * Assign it over to the normal tid_tx array
 			 * where it "goes live".
 			 */
-			spin_lock_bh(&sta->lock);
 
 			sta->ampdu_mlme.tid_start_tx[tid] = NULL;
 			/* could there be a race? */
@@ -300,6 +301,7 @@ void ieee80211_ba_session_work(struct work_struct *work)
 			ieee80211_tx_ba_session_handle_start(sta, tid);
 			continue;
 		}
+		spin_unlock_bh(&sta->lock);
 
 		tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
 		if (tid_tx && test_and_clear_bit(HT_AGG_STATE_WANT_STOP,
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index bd12fc5..4208dbd 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -203,6 +203,7 @@ struct tid_ampdu_rx {
  *	driver requested to close until the work for it runs
  * @mtx: mutex to protect all TX data (except non-NULL assignments
  *	to tid_tx[idx], which are protected by the sta spinlock)
+ *	tid_start_tx is also protected by sta->lock.
  */
 struct sta_ampdu_mlme {
 	struct mutex mtx;
-- 
cgit v0.10.2


From a06a2d378dbf099c874ad58de07a8e54ffdc94d3 Mon Sep 17 00:00:00 2001
From: Wu Fengguang <fengguang.wu@intel.com>
Date: Wed, 12 Jun 2013 21:04:16 +0800
Subject: net: ping_check_bind_addr() etc. can be static

net/ipv4/ping.c:286:5: sparse: symbol 'ping_check_bind_addr' was not declared. Should it be static?
net/ipv4/ping.c:355:6: sparse: symbol 'ping_set_saddr' was not declared. Should it be static?
net/ipv4/ping.c:370:6: sparse: symbol 'ping_clear_saddr' was not declared. Should it be static?

net/ipv6/ping.c:60:5: sparse: symbol 'dummy_ipv6_recv_error' was not declared. Should it be static?
net/ipv6/ping.c:64:5: sparse: symbol 'dummy_ip6_datagram_recv_ctl' was not declared. Should it be static?
net/ipv6/ping.c:69:5: sparse: symbol 'dummy_icmpv6_err_convert' was not declared. Should it be static?
net/ipv6/ping.c:73:6: sparse: symbol 'dummy_ipv6_icmp_error' was not declared. Should it be static?
net/ipv6/ping.c:75:5: sparse: symbol 'dummy_ipv6_chk_addr' was not declared. Should it be static?
net/ipv6/ping.c:201:5: sparse: symbol 'ping_v6_seq_show' was not declared. Should it be static?

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 1f1b2dd..746427c 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -283,8 +283,8 @@ void ping_close(struct sock *sk, long timeout)
 EXPORT_SYMBOL_GPL(ping_close);
 
 /* Checks the bind address and possibly modifies sk->sk_bound_dev_if. */
-int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
-			 struct sockaddr *uaddr, int addr_len) {
+static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
+				struct sockaddr *uaddr, int addr_len) {
 	struct net *net = sock_net(sk);
 	if (sk->sk_family == AF_INET) {
 		struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
@@ -352,7 +352,7 @@ int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
 	return 0;
 }
 
-void ping_set_saddr(struct sock *sk, struct sockaddr *saddr)
+static void ping_set_saddr(struct sock *sk, struct sockaddr *saddr)
 {
 	if (saddr->sa_family == AF_INET) {
 		struct inet_sock *isk = inet_sk(sk);
@@ -367,7 +367,7 @@ void ping_set_saddr(struct sock *sk, struct sockaddr *saddr)
 	}
 }
 
-void ping_clear_saddr(struct sock *sk, int dif)
+static void ping_clear_saddr(struct sock *sk, int dif)
 {
 	sk->sk_bound_dev_if = dif;
 	if (sk->sk_family == AF_INET) {
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index a431103..2b52046 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -57,23 +57,23 @@ static struct inet_protosw pingv6_protosw = {
 
 
 /* Compatibility glue so we can support IPv6 when it's compiled as a module */
-int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
+static int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
 {
 	return -EAFNOSUPPORT;
 }
-int dummy_ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg,
-				 struct sk_buff *skb)
+static int dummy_ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg,
+				       struct sk_buff *skb)
 {
 	return -EAFNOSUPPORT;
 }
-int dummy_icmpv6_err_convert(u8 type, u8 code, int *err)
+static int dummy_icmpv6_err_convert(u8 type, u8 code, int *err)
 {
 	return -EAFNOSUPPORT;
 }
-void dummy_ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
-			    __be16 port, u32 info, u8 *payload) {}
-int dummy_ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
-			const struct net_device *dev, int strict)
+static void dummy_ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
+				  __be16 port, u32 info, u8 *payload) {}
+static int dummy_ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
+			       const struct net_device *dev, int strict)
 {
 	return 0;
 }
@@ -198,7 +198,7 @@ static void *ping_v6_seq_start(struct seq_file *seq, loff_t *pos)
 	return ping_seq_start(seq, pos, AF_INET6);
 }
 
-int ping_v6_seq_show(struct seq_file *seq, void *v)
+static int ping_v6_seq_show(struct seq_file *seq, void *v)
 {
 	if (v == SEQ_START_TOKEN) {
 		seq_puts(seq, IPV6_SEQ_DGRAM_HEADER);
-- 
cgit v0.10.2


From 194f4a6df2a92c3d0bc65a85facfbc2433b25d06 Mon Sep 17 00:00:00 2001
From: Flavio Leitner <fbl@redhat.com>
Date: Tue, 11 Jun 2013 23:09:29 +0200
Subject: net: make all team port device link events urgent

Since team functionality relies heavily on userspace daemon, we need to
deliver event to userspace via Netlink as quick as possible. So make all
team port device link events urgent.

Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/link_watch.c b/net/core/link_watch.c
index 8f82a5c..9c3a839 100644
--- a/net/core/link_watch.c
+++ b/net/core/link_watch.c
@@ -92,6 +92,9 @@ static bool linkwatch_urgent_event(struct net_device *dev)
 	if (dev->ifindex != dev->iflink)
 		return true;
 
+	if (dev->priv_flags & IFF_TEAM_PORT)
+		return true;
+
 	return netif_carrier_ok(dev) &&	qdisc_tx_changing(dev);
 }
 
-- 
cgit v0.10.2


From fe2c6338fd2c6f383c4d4164262f35c8f3708e1f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 11 Jun 2013 23:04:25 -0700
Subject: net: Convert uses of typedef ctl_table to struct ctl_table

Reduce the uses of this unnecessary typedef.

Done via perl script:

$ git grep --name-only -w ctl_table net | \
  xargs perl -p -i -e '\
	sub trim { my ($local) = @_; $local =~ s/(^\s+|\s+$)//g; return $local; } \
        s/\b(?<!struct\s)ctl_table\b(\s*\*\s*|\s+\w+)/"struct ctl_table " . trim($1)/ge'

Reflow the modified lines that now exceed 80 columns.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
index d5744b7..919a5ce 100644
--- a/net/ax25/sysctl_net_ax25.c
+++ b/net/ax25/sysctl_net_ax25.c
@@ -29,7 +29,7 @@ static int min_proto[1],		max_proto[] = { AX25_PROTO_MAX };
 static int min_ds_timeout[1],		max_ds_timeout[] = {65535000};
 #endif
 
-static const ctl_table ax25_param_table[] = {
+static const struct ctl_table ax25_param_table[] = {
 	{
 		.procname	= "ip_default_mode",
 		.maxlen		= sizeof(int),
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 1ed75bf..f877362 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -992,7 +992,7 @@ static struct nf_hook_ops br_nf_ops[] __read_mostly = {
 
 #ifdef CONFIG_SYSCTL
 static
-int brnf_sysctl_call_tables(ctl_table * ctl, int write,
+int brnf_sysctl_call_tables(struct ctl_table *ctl, int write,
 			    void __user * buffer, size_t * lenp, loff_t * ppos)
 {
 	int ret;
@@ -1004,7 +1004,7 @@ int brnf_sysctl_call_tables(ctl_table * ctl, int write,
 	return ret;
 }
 
-static ctl_table brnf_table[] = {
+static struct ctl_table brnf_table[] = {
 	{
 		.procname	= "bridge-nf-call-arptables",
 		.data		= &brnf_call_arptables,
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 5c56b21..decaa4b 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2765,11 +2765,11 @@ EXPORT_SYMBOL(neigh_app_ns);
 static int zero;
 static int unres_qlen_max = INT_MAX / SKB_TRUESIZE(ETH_FRAME_LEN);
 
-static int proc_unres_qlen(ctl_table *ctl, int write, void __user *buffer,
-			   size_t *lenp, loff_t *ppos)
+static int proc_unres_qlen(struct ctl_table *ctl, int write,
+			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int size, ret;
-	ctl_table tmp = *ctl;
+	struct ctl_table tmp = *ctl;
 
 	tmp.extra1 = &zero;
 	tmp.extra2 = &unres_qlen_max;
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 4b48f39..637a42e 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -24,12 +24,12 @@
 static int one = 1;
 
 #ifdef CONFIG_RPS
-static int rps_sock_flow_sysctl(ctl_table *table, int write,
+static int rps_sock_flow_sysctl(struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	unsigned int orig_size, size;
 	int ret, i;
-	ctl_table tmp = {
+	struct ctl_table tmp = {
 		.data = &size,
 		.maxlen = sizeof(size),
 		.mode = table->mode
@@ -91,7 +91,7 @@ static int rps_sock_flow_sysctl(ctl_table *table, int write,
 #ifdef CONFIG_NET_FLOW_LIMIT
 static DEFINE_MUTEX(flow_limit_update_mutex);
 
-static int flow_limit_cpu_sysctl(ctl_table *table, int write,
+static int flow_limit_cpu_sysctl(struct ctl_table *table, int write,
 				 void __user *buffer, size_t *lenp,
 				 loff_t *ppos)
 {
@@ -156,7 +156,7 @@ done:
 	return ret;
 }
 
-static int flow_limit_table_len_sysctl(ctl_table *table, int write,
+static int flow_limit_table_len_sysctl(struct ctl_table *table, int write,
 				       void __user *buffer, size_t *lenp,
 				       loff_t *ppos)
 {
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 7d91970..dd0dfb2 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -158,11 +158,11 @@ static int max_t3[] = { 8191 }; /* Must fit in 16 bits when multiplied by BCT3MU
 static int min_priority[1];
 static int max_priority[] = { 127 }; /* From DECnet spec */
 
-static int dn_forwarding_proc(ctl_table *, int,
+static int dn_forwarding_proc(struct ctl_table *, int,
 			void __user *, size_t *, loff_t *);
 static struct dn_dev_sysctl_table {
 	struct ctl_table_header *sysctl_header;
-	ctl_table dn_dev_vars[5];
+	struct ctl_table dn_dev_vars[5];
 } dn_dev_sysctl = {
 	NULL,
 	{
@@ -242,7 +242,7 @@ static void dn_dev_sysctl_unregister(struct dn_dev_parms *parms)
 	}
 }
 
-static int dn_forwarding_proc(ctl_table *table, int write,
+static int dn_forwarding_proc(struct ctl_table *table, int write,
 				void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
index a55eecc..5325b54 100644
--- a/net/decnet/sysctl_net_decnet.c
+++ b/net/decnet/sysctl_net_decnet.c
@@ -132,7 +132,7 @@ static int parse_addr(__le16 *addr, char *str)
 	return 0;
 }
 
-static int dn_node_address_handler(ctl_table *table, int write,
+static int dn_node_address_handler(struct ctl_table *table, int write,
 				void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
@@ -183,7 +183,7 @@ static int dn_node_address_handler(ctl_table *table, int write,
 	return 0;
 }
 
-static int dn_def_dev_handler(ctl_table *table, int write,
+static int dn_def_dev_handler(struct ctl_table *table, int write,
 				void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
@@ -246,7 +246,7 @@ static int dn_def_dev_handler(ctl_table *table, int write,
 	return 0;
 }
 
-static ctl_table dn_table[] = {
+static struct ctl_table dn_table[] = {
 	{
 		.procname = "node_address",
 		.maxlen = 7,
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 3469506..8d48c39 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1942,7 +1942,7 @@ static void inet_forward_change(struct net *net)
 	}
 }
 
-static int devinet_conf_proc(ctl_table *ctl, int write,
+static int devinet_conf_proc(struct ctl_table *ctl, int write,
 			     void __user *buffer,
 			     size_t *lenp, loff_t *ppos)
 {
@@ -1985,7 +1985,7 @@ static int devinet_conf_proc(ctl_table *ctl, int write,
 	return ret;
 }
 
-static int devinet_sysctl_forward(ctl_table *ctl, int write,
+static int devinet_sysctl_forward(struct ctl_table *ctl, int write,
 				  void __user *buffer,
 				  size_t *lenp, loff_t *ppos)
 {
@@ -2028,7 +2028,7 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
 	return ret;
 }
 
-static int ipv4_doint_and_flush(ctl_table *ctl, int write,
+static int ipv4_doint_and_flush(struct ctl_table *ctl, int write,
 				void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 567d841..0a2e0e3 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -223,7 +223,7 @@ static struct nf_hook_ops ipv4_conntrack_ops[] __read_mostly = {
 static int log_invalid_proto_min = 0;
 static int log_invalid_proto_max = 255;
 
-static ctl_table ip_ct_sysctl_table[] = {
+static struct ctl_table ip_ct_sysctl_table[] = {
 	{
 		.procname	= "ip_conntrack_max",
 		.maxlen		= sizeof(int),
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 198ea59..f3fa42e 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2448,7 +2448,7 @@ static int ip_rt_gc_interval __read_mostly  = 60 * HZ;
 static int ip_rt_gc_min_interval __read_mostly	= HZ / 2;
 static int ip_rt_gc_elasticity __read_mostly	= 8;
 
-static int ipv4_sysctl_rtcache_flush(ctl_table *__ctl, int write,
+static int ipv4_sysctl_rtcache_flush(struct ctl_table *__ctl, int write,
 					void __user *buffer,
 					size_t *lenp, loff_t *ppos)
 {
@@ -2463,7 +2463,7 @@ static int ipv4_sysctl_rtcache_flush(ctl_table *__ctl, int write,
 	return -EINVAL;
 }
 
-static ctl_table ipv4_route_table[] = {
+static struct ctl_table ipv4_route_table[] = {
 	{
 		.procname	= "gc_thresh",
 		.data		= &ipv4_dst_ops.gc_thresh,
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index fa2f63f..b2c123c 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -49,13 +49,13 @@ static void set_local_port_range(int range[2])
 }
 
 /* Validate changes from /proc interface. */
-static int ipv4_local_port_range(ctl_table *table, int write,
+static int ipv4_local_port_range(struct ctl_table *table, int write,
 				 void __user *buffer,
 				 size_t *lenp, loff_t *ppos)
 {
 	int ret;
 	int range[2];
-	ctl_table tmp = {
+	struct ctl_table tmp = {
 		.data = &range,
 		.maxlen = sizeof(range),
 		.mode = table->mode,
@@ -100,7 +100,7 @@ static void set_ping_group_range(struct ctl_table *table, kgid_t low, kgid_t hig
 }
 
 /* Validate changes from /proc interface. */
-static int ipv4_ping_group_range(ctl_table *table, int write,
+static int ipv4_ping_group_range(struct ctl_table *table, int write,
 				 void __user *buffer,
 				 size_t *lenp, loff_t *ppos)
 {
@@ -108,7 +108,7 @@ static int ipv4_ping_group_range(ctl_table *table, int write,
 	int ret;
 	gid_t urange[2];
 	kgid_t low, high;
-	ctl_table tmp = {
+	struct ctl_table tmp = {
 		.data = &urange,
 		.maxlen = sizeof(urange),
 		.mode = table->mode,
@@ -135,11 +135,11 @@ static int ipv4_ping_group_range(ctl_table *table, int write,
 	return ret;
 }
 
-static int proc_tcp_congestion_control(ctl_table *ctl, int write,
+static int proc_tcp_congestion_control(struct ctl_table *ctl, int write,
 				       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char val[TCP_CA_NAME_MAX];
-	ctl_table tbl = {
+	struct ctl_table tbl = {
 		.data = val,
 		.maxlen = TCP_CA_NAME_MAX,
 	};
@@ -153,12 +153,12 @@ static int proc_tcp_congestion_control(ctl_table *ctl, int write,
 	return ret;
 }
 
-static int proc_tcp_available_congestion_control(ctl_table *ctl,
+static int proc_tcp_available_congestion_control(struct ctl_table *ctl,
 						 int write,
 						 void __user *buffer, size_t *lenp,
 						 loff_t *ppos)
 {
-	ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
+	struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, };
 	int ret;
 
 	tbl.data = kmalloc(tbl.maxlen, GFP_USER);
@@ -170,12 +170,12 @@ static int proc_tcp_available_congestion_control(ctl_table *ctl,
 	return ret;
 }
 
-static int proc_allowed_congestion_control(ctl_table *ctl,
+static int proc_allowed_congestion_control(struct ctl_table *ctl,
 					   int write,
 					   void __user *buffer, size_t *lenp,
 					   loff_t *ppos)
 {
-	ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
+	struct ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX };
 	int ret;
 
 	tbl.data = kmalloc(tbl.maxlen, GFP_USER);
@@ -190,7 +190,7 @@ static int proc_allowed_congestion_control(ctl_table *ctl,
 	return ret;
 }
 
-static int ipv4_tcp_mem(ctl_table *ctl, int write,
+static int ipv4_tcp_mem(struct ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp,
 			   loff_t *ppos)
 {
@@ -201,7 +201,7 @@ static int ipv4_tcp_mem(ctl_table *ctl, int write,
 	struct mem_cgroup *memcg;
 #endif
 
-	ctl_table tmp = {
+	struct ctl_table tmp = {
 		.data = &vec,
 		.maxlen = sizeof(vec),
 		.mode = ctl->mode,
@@ -233,10 +233,11 @@ static int ipv4_tcp_mem(ctl_table *ctl, int write,
 	return 0;
 }
 
-static int proc_tcp_fastopen_key(ctl_table *ctl, int write, void __user *buffer,
-				 size_t *lenp, loff_t *ppos)
+static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
+				 void __user *buffer, size_t *lenp,
+				 loff_t *ppos)
 {
-	ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
+	struct ctl_table tbl = { .maxlen = (TCP_FASTOPEN_KEY_LENGTH * 2 + 10) };
 	struct tcp_fastopen_context *ctxt;
 	int ret;
 	u32  user_key[4]; /* 16 bytes, matching TCP_FASTOPEN_KEY_LENGTH */
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 21010fd..8044912 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4620,13 +4620,13 @@ static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 #ifdef CONFIG_SYSCTL
 
 static
-int addrconf_sysctl_forward(ctl_table *ctl, int write,
+int addrconf_sysctl_forward(struct ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int *valp = ctl->data;
 	int val = *valp;
 	loff_t pos = *ppos;
-	ctl_table lctl;
+	struct ctl_table lctl;
 	int ret;
 
 	/*
@@ -4705,13 +4705,13 @@ static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int newf)
 }
 
 static
-int addrconf_sysctl_disable(ctl_table *ctl, int write,
+int addrconf_sysctl_disable(struct ctl_table *ctl, int write,
 			    void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int *valp = ctl->data;
 	int val = *valp;
 	loff_t pos = *ppos;
-	ctl_table lctl;
+	struct ctl_table lctl;
 	int ret;
 
 	/*
@@ -4733,7 +4733,7 @@ int addrconf_sysctl_disable(ctl_table *ctl, int write,
 static struct addrconf_sysctl_table
 {
 	struct ctl_table_header *sysctl_header;
-	ctl_table addrconf_vars[DEVCONF_MAX+1];
+	struct ctl_table addrconf_vars[DEVCONF_MAX+1];
 } addrconf_sysctl __read_mostly = {
 	.sysctl_header = NULL,
 	.addrconf_vars = {
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 4b4890b..7cfc8d2 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -976,7 +976,7 @@ int icmpv6_err_convert(u8 type, u8 code, int *err)
 EXPORT_SYMBOL(icmpv6_err_convert);
 
 #ifdef CONFIG_SYSCTL
-ctl_table ipv6_icmp_table_template[] = {
+struct ctl_table ipv6_icmp_table_template[] = {
 	{
 		.procname	= "ratelimit",
 		.data		= &init_net.ipv6.sysctl.icmpv6_time,
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 2b87418..7ca87b37 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2790,7 +2790,7 @@ static const struct file_operations rt6_stats_seq_fops = {
 #ifdef CONFIG_SYSCTL
 
 static
-int ipv6_sysctl_rtcache_flush(ctl_table *ctl, int write,
+int ipv6_sysctl_rtcache_flush(struct ctl_table *ctl, int write,
 			      void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct net *net;
@@ -2805,7 +2805,7 @@ int ipv6_sysctl_rtcache_flush(ctl_table *ctl, int write,
 	return 0;
 }
 
-ctl_table ipv6_route_table_template[] = {
+struct ctl_table ipv6_route_table_template[] = {
 	{
 		.procname	=	"flush",
 		.data		=	&init_net.ipv6.sysctl.flush_delay,
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index e85c48b..107b2f1 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -16,7 +16,7 @@
 #include <net/addrconf.h>
 #include <net/inet_frag.h>
 
-static ctl_table ipv6_table_template[] = {
+static struct ctl_table ipv6_table_template[] = {
 	{
 		.procname	= "bindv6only",
 		.data		= &init_net.ipv6.sysctl.bindv6only,
@@ -27,7 +27,7 @@ static ctl_table ipv6_table_template[] = {
 	{ }
 };
 
-static ctl_table ipv6_rotable[] = {
+static struct ctl_table ipv6_rotable[] = {
 	{
 		.procname	= "mld_max_msf",
 		.data		= &sysctl_mld_max_msf,
diff --git a/net/irda/irsysctl.c b/net/irda/irsysctl.c
index de73f64..d6a5965 100644
--- a/net/irda/irsysctl.c
+++ b/net/irda/irsysctl.c
@@ -73,7 +73,7 @@ static int min_lap_keepalive_time = 100;	/* 100us */
 /* For other sysctl, I've no idea of the range. Maybe Dag could help
  * us on that - Jean II */
 
-static int do_devname(ctl_table *table, int write,
+static int do_devname(struct ctl_table *table, int write,
 		      void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
@@ -90,7 +90,7 @@ static int do_devname(ctl_table *table, int write,
 }
 
 
-static int do_discovery(ctl_table *table, int write,
+static int do_discovery(struct ctl_table *table, int write,
                     void __user *buffer, size_t *lenp, loff_t *ppos)
 {
        int ret;
@@ -111,7 +111,7 @@ static int do_discovery(ctl_table *table, int write,
 }
 
 /* One file */
-static ctl_table irda_table[] = {
+static struct ctl_table irda_table[] = {
 	{
 		.procname	= "discovery",
 		.data		= &sysctl_discovery,
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index df05c1c..edb88fb 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1575,7 +1575,7 @@ static int zero;
 static int three = 3;
 
 static int
-proc_do_defense_mode(ctl_table *table, int write,
+proc_do_defense_mode(struct ctl_table *table, int write,
 		     void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct net *net = current->nsproxy->net_ns;
@@ -1596,7 +1596,7 @@ proc_do_defense_mode(ctl_table *table, int write,
 }
 
 static int
-proc_do_sync_threshold(ctl_table *table, int write,
+proc_do_sync_threshold(struct ctl_table *table, int write,
 		       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int *valp = table->data;
@@ -1616,7 +1616,7 @@ proc_do_sync_threshold(ctl_table *table, int write,
 }
 
 static int
-proc_do_sync_mode(ctl_table *table, int write,
+proc_do_sync_mode(struct ctl_table *table, int write,
 		     void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int *valp = table->data;
@@ -1634,7 +1634,7 @@ proc_do_sync_mode(ctl_table *table, int write,
 }
 
 static int
-proc_do_sync_ports(ctl_table *table, int write,
+proc_do_sync_ports(struct ctl_table *table, int write,
 		   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	int *valp = table->data;
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index 5ea26bd..44595b8 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -118,7 +118,7 @@ struct ip_vs_lblc_table {
  *      IPVS LBLC sysctl table
  */
 #ifdef CONFIG_SYSCTL
-static ctl_table vs_vars_table[] = {
+static struct ctl_table vs_vars_table[] = {
 	{
 		.procname	= "lblc_expiration",
 		.data		= NULL,
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index 50123c2..876937d 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -299,7 +299,7 @@ struct ip_vs_lblcr_table {
  *      IPVS LBLCR sysctl table
  */
 
-static ctl_table vs_vars_table[] = {
+static struct ctl_table vs_vars_table[] = {
 	{
 		.procname	= "lblcr_expiration",
 		.data		= NULL,
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index bd700b4..f641751 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -408,7 +408,7 @@ static int log_invalid_proto_max = 255;
 
 static struct ctl_table_header *nf_ct_netfilter_header;
 
-static ctl_table nf_ct_sysctl_table[] = {
+static struct ctl_table nf_ct_sysctl_table[] = {
 	{
 		.procname	= "nf_conntrack_max",
 		.data		= &nf_conntrack_max,
@@ -458,7 +458,7 @@ static ctl_table nf_ct_sysctl_table[] = {
 
 #define NET_NF_CONNTRACK_MAX 2089
 
-static ctl_table nf_ct_netfilter_table[] = {
+static struct ctl_table nf_ct_netfilter_table[] = {
 	{
 		.procname	= "nf_conntrack_max",
 		.data		= &nf_conntrack_max,
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c
index 4b60a87..85296d4 100644
--- a/net/netfilter/nf_log.c
+++ b/net/netfilter/nf_log.c
@@ -245,7 +245,7 @@ static const struct file_operations nflog_file_ops = {
 static char nf_log_sysctl_fnames[NFPROTO_NUMPROTO-NFPROTO_UNSPEC][3];
 static struct ctl_table nf_log_sysctl_table[NFPROTO_NUMPROTO+1];
 
-static int nf_log_proc_dostring(ctl_table *table, int write,
+static int nf_log_proc_dostring(struct ctl_table *table, int write,
 			 void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	const struct nf_logger *logger;
diff --git a/net/netrom/sysctl_net_netrom.c b/net/netrom/sysctl_net_netrom.c
index 42f630b..ba1c368 100644
--- a/net/netrom/sysctl_net_netrom.c
+++ b/net/netrom/sysctl_net_netrom.c
@@ -34,7 +34,7 @@ static int min_reset[]   = {0}, max_reset[]   = {1};
 
 static struct ctl_table_header *nr_table_header;
 
-static ctl_table nr_table[] = {
+static struct ctl_table nr_table[] = {
 	{
 		.procname	= "default_path_quality",
 		.data		= &sysctl_netrom_default_path_quality,
diff --git a/net/phonet/sysctl.c b/net/phonet/sysctl.c
index d6bbbbd..c02a8c4 100644
--- a/net/phonet/sysctl.c
+++ b/net/phonet/sysctl.c
@@ -61,13 +61,13 @@ void phonet_get_local_port_range(int *min, int *max)
 	} while (read_seqretry(&local_port_range_lock, seq));
 }
 
-static int proc_local_port_range(ctl_table *table, int write,
+static int proc_local_port_range(struct ctl_table *table, int write,
 				void __user *buffer,
 				size_t *lenp, loff_t *ppos)
 {
 	int ret;
 	int range[2] = {local_port_range[0], local_port_range[1]};
-	ctl_table tmp = {
+	struct ctl_table tmp = {
 		.data = &range,
 		.maxlen = sizeof(range),
 		.mode = table->mode,
diff --git a/net/rds/ib_sysctl.c b/net/rds/ib_sysctl.c
index 7e643ba..e4e41b3 100644
--- a/net/rds/ib_sysctl.c
+++ b/net/rds/ib_sysctl.c
@@ -61,7 +61,7 @@ static unsigned long rds_ib_sysctl_max_unsig_wr_max = 64;
  */
 unsigned int rds_ib_sysctl_flow_control = 0;
 
-static ctl_table rds_ib_sysctl_table[] = {
+static struct ctl_table rds_ib_sysctl_table[] = {
 	{
 		.procname       = "max_send_wr",
 		.data		= &rds_ib_sysctl_max_send_wr,
diff --git a/net/rds/iw_sysctl.c b/net/rds/iw_sysctl.c
index 5d5ebd5..89c9151 100644
--- a/net/rds/iw_sysctl.c
+++ b/net/rds/iw_sysctl.c
@@ -55,7 +55,7 @@ static unsigned long rds_iw_sysctl_max_unsig_bytes_max = ~0UL;
 
 unsigned int rds_iw_sysctl_flow_control = 1;
 
-static ctl_table rds_iw_sysctl_table[] = {
+static struct ctl_table rds_iw_sysctl_table[] = {
 	{
 		.procname       = "max_send_wr",
 		.data		= &rds_iw_sysctl_max_send_wr,
diff --git a/net/rds/sysctl.c b/net/rds/sysctl.c
index 907214b..b5cb2aa 100644
--- a/net/rds/sysctl.c
+++ b/net/rds/sysctl.c
@@ -49,7 +49,7 @@ unsigned int  rds_sysctl_max_unacked_bytes = (16 << 20);
 
 unsigned int rds_sysctl_ping_enable = 1;
 
-static ctl_table rds_sysctl_rds_table[] = {
+static struct ctl_table rds_sysctl_rds_table[] = {
 	{
 		.procname       = "reconnect_min_delay_ms",
 		.data		= &rds_sysctl_reconnect_min_jiffies,
diff --git a/net/rose/sysctl_net_rose.c b/net/rose/sysctl_net_rose.c
index 94ca9c2..89a9278 100644
--- a/net/rose/sysctl_net_rose.c
+++ b/net/rose/sysctl_net_rose.c
@@ -24,7 +24,7 @@ static int min_window[] = {1}, max_window[] = {7};
 
 static struct ctl_table_header *rose_table_header;
 
-static ctl_table rose_table[] = {
+static struct ctl_table rose_table[] = {
 	{
 		.procname	= "restart_request_timeout",
 		.data		= &sysctl_rose_restart_request_timeout,
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index bf3c6e8..9a5c4c9 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -62,12 +62,12 @@ extern long sysctl_sctp_mem[3];
 extern int sysctl_sctp_rmem[3];
 extern int sysctl_sctp_wmem[3];
 
-static int proc_sctp_do_hmac_alg(ctl_table *ctl,
+static int proc_sctp_do_hmac_alg(struct ctl_table *ctl,
 				int write,
 				void __user *buffer, size_t *lenp,
 
 				loff_t *ppos);
-static ctl_table sctp_table[] = {
+static struct ctl_table sctp_table[] = {
 	{
 		.procname	= "sctp_mem",
 		.data		= &sysctl_sctp_mem,
@@ -93,7 +93,7 @@ static ctl_table sctp_table[] = {
 	{ /* sentinel */ }
 };
 
-static ctl_table sctp_net_table[] = {
+static struct ctl_table sctp_net_table[] = {
 	{
 		.procname	= "rto_initial",
 		.data		= &init_net.sctp.rto_initial,
@@ -300,14 +300,14 @@ static ctl_table sctp_net_table[] = {
 	{ /* sentinel */ }
 };
 
-static int proc_sctp_do_hmac_alg(ctl_table *ctl,
+static int proc_sctp_do_hmac_alg(struct ctl_table *ctl,
 				int write,
 				void __user *buffer, size_t *lenp,
 				loff_t *ppos)
 {
 	struct net *net = current->nsproxy->net_ns;
 	char tmp[8];
-	ctl_table tbl;
+	struct ctl_table tbl;
 	int ret;
 	int changed = 0;
 	char *none = "none";
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index af7d339..c99c58e 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -40,7 +40,7 @@ EXPORT_SYMBOL_GPL(nlm_debug);
 #ifdef RPC_DEBUG
 
 static struct ctl_table_header *sunrpc_table_header;
-static ctl_table		sunrpc_table[];
+static struct ctl_table sunrpc_table[];
 
 void
 rpc_register_sysctl(void)
@@ -58,7 +58,7 @@ rpc_unregister_sysctl(void)
 	}
 }
 
-static int proc_do_xprt(ctl_table *table, int write,
+static int proc_do_xprt(struct ctl_table *table, int write,
 			void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char tmpbuf[256];
@@ -73,7 +73,7 @@ static int proc_do_xprt(ctl_table *table, int write,
 }
 
 static int
-proc_dodebug(ctl_table *table, int write,
+proc_dodebug(struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char		tmpbuf[20], c, *s;
@@ -135,7 +135,7 @@ done:
 }
 
 
-static ctl_table debug_table[] = {
+static struct ctl_table debug_table[] = {
 	{
 		.procname	= "rpc_debug",
 		.data		= &rpc_debug,
@@ -173,7 +173,7 @@ static ctl_table debug_table[] = {
 	{ }
 };
 
-static ctl_table sunrpc_table[] = {
+static struct ctl_table sunrpc_table[] = {
 	{
 		.procname	= "sunrpc",
 		.mode		= 0555,
diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
index 8343737..c1b6270 100644
--- a/net/sunrpc/xprtrdma/svc_rdma.c
+++ b/net/sunrpc/xprtrdma/svc_rdma.c
@@ -84,7 +84,7 @@ struct workqueue_struct *svc_rdma_wq;
  * resets the associated statistic to zero. Any read returns it's
  * current value.
  */
-static int read_reset_stat(ctl_table *table, int write,
+static int read_reset_stat(struct ctl_table *table, int write,
 			   void __user *buffer, size_t *lenp,
 			   loff_t *ppos)
 {
@@ -119,7 +119,7 @@ static int read_reset_stat(ctl_table *table, int write,
 }
 
 static struct ctl_table_header *svcrdma_table_header;
-static ctl_table svcrdma_parm_table[] = {
+static struct ctl_table svcrdma_parm_table[] = {
 	{
 		.procname	= "max_requests",
 		.data		= &svcrdma_max_requests,
@@ -214,7 +214,7 @@ static ctl_table svcrdma_parm_table[] = {
 	{ },
 };
 
-static ctl_table svcrdma_table[] = {
+static struct ctl_table svcrdma_table[] = {
 	{
 		.procname	= "svc_rdma",
 		.mode		= 0555,
@@ -223,7 +223,7 @@ static ctl_table svcrdma_table[] = {
 	{ },
 };
 
-static ctl_table svcrdma_root_table[] = {
+static struct ctl_table svcrdma_root_table[] = {
 	{
 		.procname	= "sunrpc",
 		.mode		= 0555,
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 794312f..285dc08 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -86,7 +86,7 @@ static unsigned int max_memreg = RPCRDMA_LAST - 1;
 
 static struct ctl_table_header *sunrpc_table_header;
 
-static ctl_table xr_tunables_table[] = {
+static struct ctl_table xr_tunables_table[] = {
 	{
 		.procname	= "rdma_slot_table_entries",
 		.data		= &xprt_rdma_slot_table_entries,
@@ -138,7 +138,7 @@ static ctl_table xr_tunables_table[] = {
 	{ },
 };
 
-static ctl_table sunrpc_table[] = {
+static struct ctl_table sunrpc_table[] = {
 	{
 		.procname	= "sunrpc",
 		.mode		= 0555,
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index ffd5034..412de7c 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -87,7 +87,7 @@ static struct ctl_table_header *sunrpc_table_header;
  * FIXME: changing the UDP slot table size should also resize the UDP
  *        socket buffers for existing UDP transports
  */
-static ctl_table xs_tunables_table[] = {
+static struct ctl_table xs_tunables_table[] = {
 	{
 		.procname	= "udp_slot_table_entries",
 		.data		= &xprt_udp_slot_table_entries,
@@ -143,7 +143,7 @@ static ctl_table xs_tunables_table[] = {
 	{ },
 };
 
-static ctl_table sunrpc_table[] = {
+static struct ctl_table sunrpc_table[] = {
 	{
 		.procname	= "sunrpc",
 		.mode		= 0555,
diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c
index 8800604..b3d5150 100644
--- a/net/unix/sysctl_net_unix.c
+++ b/net/unix/sysctl_net_unix.c
@@ -15,7 +15,7 @@
 
 #include <net/af_unix.h>
 
-static ctl_table unix_table[] = {
+static struct ctl_table unix_table[] = {
 	{
 		.procname	= "max_dgram_qlen",
 		.data		= &init_net.unx.sysctl_max_dgram_qlen,
-- 
cgit v0.10.2


From 8e994402ad5e6ae3d391c0935f9f1dc2eeb92a5e Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Wed, 12 Jun 2013 03:07:29 +0400
Subject: sh_eth: remove '__maybe_unused' annotations

Now that  the SoC specific support is no longer done with help of #ifdef'fery,
we  no longer need '__maybe_unused' annotations to sh_eth_select_mii() and
sh_eth_set_duplex()...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 67a9e96..a2eadc0 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -321,7 +321,7 @@ static int sh_eth_is_gether(struct sh_eth_private *mdp)
 		return 0;
 }
 
-static void __maybe_unused sh_eth_select_mii(struct net_device *ndev)
+static void sh_eth_select_mii(struct net_device *ndev)
 {
 	u32 value = 0x0;
 	struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -345,7 +345,7 @@ static void __maybe_unused sh_eth_select_mii(struct net_device *ndev)
 	sh_eth_write(ndev, value, RMII_MII);
 }
 
-static void __maybe_unused sh_eth_set_duplex(struct net_device *ndev)
+static void sh_eth_set_duplex(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
-- 
cgit v0.10.2


From 85f16525a2eb66e6092cbd8dcf42371df8334ed0 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Tue, 11 Jun 2013 15:35:32 -0700
Subject: tcp: properly send new data in fast recovery in first RTT

Linux sends new unset data during disorder and recovery state if all
(suspected) lost packets have been retransmitted ( RFC5681, section
3.2 step 1 & 2, RFC3517 section 4, NexSeg() Rule 2).  One requirement
is to keep the receive window about twice the estimated sender's
congestion window (tcp_rcv_space_adjust()), assuming the fast
retransmits repair the losses in the next round trip.

But currently it's not the case on the first round trip in either
normal or Fast Open connection, beucase the initial receive window
is identical to (expected) sender's initial congestion window. The
fix is to double it.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 0d637e9..6fa8083 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -61,9 +61,6 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo);
  */
 #define MAX_TCP_WINDOW		32767U
 
-/* Offer an initial receive window of 10 mss. */
-#define TCP_DEFAULT_INIT_RCVWND	10
-
 /* Minimal accepted MSS. It is (60+60+8) - (20+20). */
 #define TCP_MIN_MSS		88U
 
@@ -1047,6 +1044,8 @@ static inline void tcp_sack_reset(struct tcp_options_received *rx_opt)
 	rx_opt->num_sacks = 0;
 }
 
+extern u32 tcp_default_init_rwnd(u32 mss);
+
 /* Determine a window scaling and initial window to offer. */
 extern void tcp_select_initial_window(int __space, __u32 mss,
 				      __u32 *rcv_wnd, __u32 *window_clamp,
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 907311c..46271cdc 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -347,22 +347,13 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
 }
 
 /* 3. Tuning rcvbuf, when connection enters established state. */
-
 static void tcp_fixup_rcvbuf(struct sock *sk)
 {
 	u32 mss = tcp_sk(sk)->advmss;
-	u32 icwnd = TCP_DEFAULT_INIT_RCVWND;
 	int rcvmem;
 
-	/* Limit to 10 segments if mss <= 1460,
-	 * or 14600/mss segments, with a minimum of two segments.
-	 */
-	if (mss > 1460)
-		icwnd = max_t(u32, (1460 * TCP_DEFAULT_INIT_RCVWND) / mss, 2);
-
-	rcvmem = 2 * SKB_TRUESIZE(mss + MAX_TCP_HEADER);
-
-	rcvmem *= icwnd;
+	rcvmem = 2 * SKB_TRUESIZE(mss + MAX_TCP_HEADER) *
+		 tcp_default_init_rwnd(mss);
 
 	if (sk->sk_rcvbuf < rcvmem)
 		sk->sk_rcvbuf = min(rcvmem, sysctl_tcp_rmem[2]);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index ec335fa..3dd46ea 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -181,6 +181,21 @@ static inline void tcp_event_ack_sent(struct sock *sk, unsigned int pkts)
 	inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
 }
 
+
+u32 tcp_default_init_rwnd(u32 mss)
+{
+	/* Initial receive window should be twice of TCP_INIT_CWND to
+	 * enable proper sending of new unset data during fast recovery
+	 * (RFC 3517, Section 4, NextSeg() rule (2)). Further place a
+	 * limit when mss is larger than 1460.
+	 */
+	u32 init_rwnd = TCP_INIT_CWND * 2;
+
+	if (mss > 1460)
+		init_rwnd = max((1460 * init_rwnd) / mss, 2U);
+	return init_rwnd;
+}
+
 /* Determine a window scaling and initial window to offer.
  * Based on the assumption that the given amount of space
  * will be offered. Store the results in the tp structure.
@@ -230,22 +245,10 @@ void tcp_select_initial_window(int __space, __u32 mss,
 		}
 	}
 
-	/* Set initial window to a value enough for senders starting with
-	 * initial congestion window of TCP_DEFAULT_INIT_RCVWND. Place
-	 * a limit on the initial window when mss is larger than 1460.
-	 */
 	if (mss > (1 << *rcv_wscale)) {
-		int init_cwnd = TCP_DEFAULT_INIT_RCVWND;
-		if (mss > 1460)
-			init_cwnd =
-			max_t(u32, (1460 * TCP_DEFAULT_INIT_RCVWND) / mss, 2);
-		/* when initializing use the value from init_rcv_wnd
-		 * rather than the default from above
-		 */
-		if (init_rcv_wnd)
-			*rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
-		else
-			*rcv_wnd = min(*rcv_wnd, init_cwnd * mss);
+		if (!init_rcv_wnd) /* Use default unless specified otherwise */
+			init_rcv_wnd = tcp_default_init_rwnd(mss);
+		*rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
 	}
 
 	/* Set the clamp no higher than max representable value */
-- 
cgit v0.10.2


From 817cee767523769cbc5ac94e439cde0c21752cbc Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Sun, 19 May 2013 14:23:57 +0300
Subject: mac80211: track AP's beacon rate and give it to the driver

Track the AP's beacon rate in the scan BSS data and in the
interface configuration to let the drivers know which rate
the AP is using. This information may be used by drivers,
in our case to let the firmware optimise beacon RX.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index a405a7a..5b7a3da 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -305,6 +305,7 @@ enum ieee80211_rssi_event {
  * @basic_rates: bitmap of basic rates, each bit stands for an
  *	index into the rate table configured by the driver in
  *	the current band.
+ * @beacon_rate: associated AP's beacon TX rate
  * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
  * @bssid: The BSSID for this BSS
  * @enable_beacon: whether beaconing should be enabled or not
@@ -352,6 +353,7 @@ struct ieee80211_bss_conf {
 	u32 sync_device_ts;
 	u8 sync_dtim_count;
 	u32 basic_rates;
+	struct ieee80211_rate *beacon_rate;
 	int mcast_rate[IEEE80211_NUM_BANDS];
 	u16 ht_operation_mode;
 	s32 cqm_rssi_thold;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 7a6f1a0..a4dfb0b 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -94,6 +94,7 @@ struct ieee80211_bss {
 #define IEEE80211_MAX_SUPP_RATES 32
 	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 	size_t supp_rates_len;
+	struct ieee80211_rate *beacon_rate;
 
 	/*
 	 * During association, we save an ERP value from a probe response so
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index ad9bb9e..87f2d4d 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1779,8 +1779,10 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		 * probably just won't work at all.
 		 */
 		bss_conf->dtim_period = sdata->u.mgd.dtim_period ?: 1;
+		bss_conf->beacon_rate = bss->beacon_rate;
 		bss_info_changed |= BSS_CHANGED_BEACON_INFO;
 	} else {
+		bss_conf->beacon_rate = NULL;
 		bss_conf->dtim_period = 0;
 	}
 
@@ -1903,6 +1905,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	del_timer_sync(&sdata->u.mgd.chswitch_timer);
 
 	sdata->vif.bss_conf.dtim_period = 0;
+	sdata->vif.bss_conf.beacon_rate = NULL;
+
 	ifmgd->have_beacon = false;
 
 	ifmgd->flags = 0;
@@ -2754,8 +2758,10 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 
 	bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
 					channel);
-	if (bss)
+	if (bss) {
 		ieee80211_rx_bss_put(local, bss);
+		sdata->vif.bss_conf.beacon_rate = bss->beacon_rate;
+	}
 
 	if (!sdata->u.mgd.associated ||
 	    !ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid))
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 99b10392..1b122a7 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -140,6 +140,15 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
 			bss->valid_data |= IEEE80211_BSS_VALID_WMM;
 	}
 
+	if (beacon) {
+		struct ieee80211_supported_band *sband =
+			local->hw.wiphy->bands[rx_status->band];
+		if (!(rx_status->flag & RX_FLAG_HT) &&
+		    !(rx_status->flag & RX_FLAG_VHT))
+			bss->beacon_rate =
+				&sband->bitrates[rx_status->rate_idx];
+	}
+
 	return bss;
 }
 
-- 
cgit v0.10.2


From 38745c7414c0d9a0567c5b4a4e056c6b7f807179 Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Mon, 10 Jun 2013 10:34:14 +0300
Subject: mac80211: Fix VHT bandwidth change event

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 171344d..97c2894 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -396,7 +396,7 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 	new_bw = ieee80211_sta_cur_vht_bw(sta);
 	if (new_bw != sta->sta.bandwidth) {
 		sta->sta.bandwidth = new_bw;
-		changed |= IEEE80211_RC_NSS_CHANGED;
+		changed |= IEEE80211_RC_BW_CHANGED;
 	}
 
  change:
-- 
cgit v0.10.2


From 68972c46f2975d3d61f9dc9f311f77bfc8a8b12b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 11 Jun 2013 19:05:27 +0200
Subject: iwlwifi: make TX seqno validation more efficient

Accessing the device in Tx path is not a good idea.
Mirror the data in DRAM.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/internal.h b/drivers/net/wireless/iwlwifi/pcie/internal.h
index 148843e..b654dcd 100644
--- a/drivers/net/wireless/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/iwlwifi/pcie/internal.h
@@ -217,6 +217,7 @@ struct iwl_pcie_txq_scratch_buf {
  * @trans_pcie: pointer back to transport (for timer)
  * @need_update: indicates need to update read/write index
  * @active: stores if queue is active
+ * @ampdu: true if this queue is an ampdu queue for an specific RA/TID
  *
  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
  * descriptors) and required locking structures.
@@ -232,6 +233,7 @@ struct iwl_txq {
 	struct iwl_trans_pcie *trans_pcie;
 	u8 need_update;
 	u8 active;
+	bool ampdu;
 };
 
 static inline dma_addr_t
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index f65da19..b8f3cb7 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1073,6 +1073,7 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo,
 
 		/* enable aggregations for the queue */
 		iwl_set_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id));
+		trans_pcie->txq[txq_id].ampdu = true;
 	} else {
 		/*
 		 * disable aggregations for the queue, this will also make the
@@ -1129,6 +1130,7 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id)
 			    ARRAY_SIZE(zero_val));
 
 	iwl_pcie_txq_unmap(trans, txq_id);
+	trans_pcie->txq[txq_id].ampdu = false;
 
 	IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id);
 }
@@ -1599,7 +1601,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
 	u8 wait_write_ptr = 0;
 	__le16 fc = hdr->frame_control;
 	u8 hdr_len = ieee80211_hdrlen(fc);
-	u16 __maybe_unused wifi_seq;
+	u16 wifi_seq;
 
 	txq = &trans_pcie->txq[txq_id];
 	q = &txq->q;
@@ -1616,13 +1618,11 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
 	 * the BA.
 	 * Check here that the packets are in the right place on the ring.
 	 */
-#ifdef CONFIG_IWLWIFI_DEBUG
 	wifi_seq = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
-	WARN_ONCE((iwl_read_prph(trans, SCD_AGGR_SEL) & BIT(txq_id)) &&
-		  ((wifi_seq & 0xff) != q->write_ptr),
+	WARN_ONCE(trans_pcie->txq[txq_id].ampdu &&
+		  (wifi_seq & 0xff) != q->write_ptr,
 		  "Q: %d WiFi Seq %d tfdNum %d",
 		  txq_id, wifi_seq, q->write_ptr);
-#endif
 
 	/* Set up driver data for this TFD */
 	txq->entries[q->write_ptr].skb = skb;
-- 
cgit v0.10.2


From 01911dab97cb3e21e640aaca82689acec00ed848 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 11 Jun 2013 21:12:29 +0200
Subject: iwlwifi: pcie: don't read INTA register in ICT IRQ handler

There's no reason to read the INTA register in the ICT IRQ
handler, this interrupt mechanism is designed to not have
to read as many registers as the regular one. Not reading
the INTA register gives a significant performance/CPU use
improvement.

Since we still want to get this info, fetch it only if
the ISR debug level is enabled.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 567e67a..63ba21e 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -1198,7 +1198,7 @@ irqreturn_t iwl_pcie_isr_ict(int irq, void *data)
 {
 	struct iwl_trans *trans = data;
 	struct iwl_trans_pcie *trans_pcie;
-	u32 inta, inta_mask;
+	u32 inta;
 	u32 val = 0;
 	u32 read;
 	unsigned long flags;
@@ -1226,7 +1226,6 @@ irqreturn_t iwl_pcie_isr_ict(int irq, void *data)
 	 * If we have something to service, the tasklet will re-enable ints.
 	 * If we *don't* have something, we'll re-enable before leaving here.
 	 */
-	inta_mask = iwl_read32(trans, CSR_INT_MASK);
 	iwl_write32(trans, CSR_INT_MASK, 0x00000000);
 
 	/* Ignore interrupt if there's nothing in NIC to service.
@@ -1271,8 +1270,13 @@ irqreturn_t iwl_pcie_isr_ict(int irq, void *data)
 		val |= 0x8000;
 
 	inta = (0xff & val) | ((0xff00 & val) << 16);
-	IWL_DEBUG_ISR(trans, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n",
-		      inta, inta_mask, val);
+	IWL_DEBUG_ISR(trans, "ISR inta 0x%08x, enabled(sw) 0x%08x ict 0x%08x\n",
+		      inta, trans_pcie->inta_mask, val);
+#ifdef CONFIG_IWLWIFI_DEBUG
+	if (iwl_have_debug_level(IWL_DL_ISR))
+		IWL_DEBUG_ISR(trans, "enabled(hw) 0x%08x\n",
+			      iwl_read32(trans, CSR_INT_MASK));
+#endif
 
 	inta &= trans_pcie->inta_mask;
 	trans_pcie->inta |= inta;
-- 
cgit v0.10.2


From b002c7e1f327bb56fe068bf76fd7179b1b490e02 Mon Sep 17 00:00:00 2001
From: Oren Givon <oren.givon@intel.com>
Date: Wed, 12 Jun 2013 20:37:03 +0300
Subject: iwlwifi: mvm: removed an unused parameter from a function

Remove the unused iwl_mvm *mvm parameter from the
iwl_mvm_send_remote_wake_cfg function in D3.c.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 7a2ef3f..8c49db0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -420,8 +420,7 @@ static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr)
 	return cpu_to_le16(be16_to_cpu((__force __be16)check));
 }
 
-static void iwl_mvm_build_tcp_packet(struct iwl_mvm *mvm,
-				     struct ieee80211_vif *vif,
+static void iwl_mvm_build_tcp_packet(struct ieee80211_vif *vif,
 				     struct cfg80211_wowlan_tcp *tcp,
 				     void *_pkt, u8 *mask,
 				     __le16 *pseudo_hdr_csum,
@@ -567,21 +566,21 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm,
 
 	/* SYN (TX) */
 	iwl_mvm_build_tcp_packet(
-		mvm, vif, tcp, cfg->syn_tx.data, NULL,
+		vif, tcp, cfg->syn_tx.data, NULL,
 		&cfg->syn_tx.info.tcp_pseudo_header_checksum,
 		MVM_TCP_TX_SYN);
 	cfg->syn_tx.info.tcp_payload_length = 0;
 
 	/* SYN/ACK (RX) */
 	iwl_mvm_build_tcp_packet(
-		mvm, vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask,
+		vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask,
 		&cfg->synack_rx.info.tcp_pseudo_header_checksum,
 		MVM_TCP_RX_SYNACK);
 	cfg->synack_rx.info.tcp_payload_length = 0;
 
 	/* KEEPALIVE/ACK (TX) */
 	iwl_mvm_build_tcp_packet(
-		mvm, vif, tcp, cfg->keepalive_tx.data, NULL,
+		vif, tcp, cfg->keepalive_tx.data, NULL,
 		&cfg->keepalive_tx.info.tcp_pseudo_header_checksum,
 		MVM_TCP_TX_DATA);
 	cfg->keepalive_tx.info.tcp_payload_length =
@@ -605,7 +604,7 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm,
 
 	/* ACK (RX) */
 	iwl_mvm_build_tcp_packet(
-		mvm, vif, tcp, cfg->keepalive_ack_rx.data,
+		vif, tcp, cfg->keepalive_ack_rx.data,
 		cfg->keepalive_ack_rx.rx_mask,
 		&cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum,
 		MVM_TCP_RX_ACK);
@@ -613,7 +612,7 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm,
 
 	/* WAKEUP (RX) */
 	iwl_mvm_build_tcp_packet(
-		mvm, vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask,
+		vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask,
 		&cfg->wake_rx.info.tcp_pseudo_header_checksum,
 		MVM_TCP_RX_WAKE);
 	cfg->wake_rx.info.tcp_payload_length =
@@ -621,7 +620,7 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm,
 
 	/* FIN */
 	iwl_mvm_build_tcp_packet(
-		mvm, vif, tcp, cfg->fin_tx.data, NULL,
+		vif, tcp, cfg->fin_tx.data, NULL,
 		&cfg->fin_tx.info.tcp_pseudo_header_checksum,
 		MVM_TCP_TX_FIN);
 	cfg->fin_tx.info.tcp_payload_length = 0;
-- 
cgit v0.10.2


From 12dcf2c3325a8aa25e8634b7e8337aad6f9be9b7 Mon Sep 17 00:00:00 2001
From: David Spinadel <david.spinadel@intel.com>
Date: Wed, 12 Jun 2013 16:58:04 +0300
Subject: iwlwifi: remove calib channel section from PHY DB

Remove calibration per-channel data as it's no longer used.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-phy-db.c b/drivers/net/wireless/iwlwifi/iwl-phy-db.c
index 84acb4d..1a405ae 100644
--- a/drivers/net/wireless/iwlwifi/iwl-phy-db.c
+++ b/drivers/net/wireless/iwlwifi/iwl-phy-db.c
@@ -92,20 +92,16 @@ struct iwl_phy_db_entry {
 struct iwl_phy_db {
 	struct iwl_phy_db_entry	cfg;
 	struct iwl_phy_db_entry	calib_nch;
-	struct iwl_phy_db_entry	calib_ch;
 	struct iwl_phy_db_entry	calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS];
 	struct iwl_phy_db_entry	calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS];
 
-	u32 channel_num;
-	u32 channel_size;
-
 	struct iwl_trans *trans;
 };
 
 enum iwl_phy_db_section_type {
 	IWL_PHY_DB_CFG = 1,
 	IWL_PHY_DB_CALIB_NCH,
-	IWL_PHY_DB_CALIB_CH,
+	IWL_PHY_DB_UNUSED,
 	IWL_PHY_DB_CALIB_CHG_PAPD,
 	IWL_PHY_DB_CALIB_CHG_TXP,
 	IWL_PHY_DB_MAX
@@ -169,8 +165,6 @@ iwl_phy_db_get_section(struct iwl_phy_db *phy_db,
 		return &phy_db->cfg;
 	case IWL_PHY_DB_CALIB_NCH:
 		return &phy_db->calib_nch;
-	case IWL_PHY_DB_CALIB_CH:
-		return &phy_db->calib_ch;
 	case IWL_PHY_DB_CALIB_CHG_PAPD:
 		if (chg_id >= IWL_NUM_PAPD_CH_GROUPS)
 			return NULL;
@@ -208,7 +202,6 @@ void iwl_phy_db_free(struct iwl_phy_db *phy_db)
 
 	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0);
 	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0);
-	iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CH, 0);
 	for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++)
 		iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i);
 	for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++)
@@ -248,13 +241,6 @@ int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt,
 
 	entry->size = size;
 
-	if (type == IWL_PHY_DB_CALIB_CH) {
-		phy_db->channel_num =
-			le32_to_cpup((__le32 *)phy_db_notif->data);
-		phy_db->channel_size =
-			(size - CHANNEL_NUM_SIZE) / phy_db->channel_num;
-	}
-
 	IWL_DEBUG_INFO(phy_db->trans,
 		       "%s(%d): [PHYDB]SET: Type %d , Size: %d\n",
 		       __func__, __LINE__, type, size);
@@ -328,10 +314,7 @@ int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
 				u32 type, u8 **data, u16 *size, u16 ch_id)
 {
 	struct iwl_phy_db_entry *entry;
-	u32 channel_num;
-	u32 channel_size;
 	u16 ch_group_id = 0;
-	u16 index;
 
 	if (!phy_db)
 		return -EINVAL;
@@ -346,21 +329,8 @@ int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db,
 	if (!entry)
 		return -EINVAL;
 
-	if (type == IWL_PHY_DB_CALIB_CH) {
-		index = ch_id_to_ch_index(ch_id);
-		channel_num = phy_db->channel_num;
-		channel_size = phy_db->channel_size;
-		if (index >= channel_num) {
-			IWL_ERR(phy_db->trans, "Wrong channel number %d\n",
-				ch_id);
-			return -EINVAL;
-		}
-		*data = entry->data + CHANNEL_NUM_SIZE + index * channel_size;
-		*size = channel_size;
-	} else {
-		*data = entry->data;
-		*size = entry->size;
-	}
+	*data = entry->data;
+	*size = entry->size;
 
 	IWL_DEBUG_INFO(phy_db->trans,
 		       "%s(%d): [PHYDB] GET: Type %d , Size: %d\n",
-- 
cgit v0.10.2


From 51cd53ad120f33410c48fd0d696e6f6255c8e780 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 12 Jun 2013 09:56:51 +0200
Subject: iwlwifi: reduce debug ifdefs using the optimiser

Instead of using #ifdef CONFIG_IWLWIFI_DEBUG, remove the
iwlwifi_mod_params.debug_level variable completely and
make iwl_have_debug_level() always return false in the
non-debug case. This way, the optimiser will elide all
code for it automatically without having to add #ifdefs.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 68f7546..7aa9c8d 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -1859,14 +1859,9 @@ int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
 		return pos;
 	}
 
-#ifdef CONFIG_IWLWIFI_DEBUG
 	if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log)
 		size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
 			? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
-#else
-	size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
-		? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
-#endif
 	IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
 		size);
 
@@ -1910,10 +1905,8 @@ static void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand)
 	unsigned int reload_msec;
 	unsigned long reload_jiffies;
 
-#ifdef CONFIG_IWLWIFI_DEBUG
 	if (iwl_have_debug_level(IWL_DL_FW_ERRORS))
 		iwl_print_rx_config_cmd(priv, IWL_RXON_CTX_BSS);
-#endif
 
 	/* uCode is no longer loaded. */
 	priv->ucode_loaded = false;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 8cf5db7..7edb851 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -34,7 +34,11 @@
 
 static inline bool iwl_have_debug_level(u32 level)
 {
+#ifdef CONFIG_IWLWIFI_DEBUG
 	return iwlwifi_mod_params.debug_level & level;
+#else
+	return false;
+#endif
 }
 
 void __iwl_err(struct device *dev, bool rfkill_prefix, bool only_trace,
diff --git a/drivers/net/wireless/iwlwifi/iwl-modparams.h b/drivers/net/wireless/iwlwifi/iwl-modparams.h
index 36dfe09..d4ad505 100644
--- a/drivers/net/wireless/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/iwlwifi/iwl-modparams.h
@@ -115,7 +115,9 @@ struct iwl_mod_params {
 	int led_mode;
 	bool power_save;
 	int power_level;
+#ifdef CONFIG_IWLWIFI_DEBUG
 	u32 debug_level;
+#endif
 	int ant_coupling;
 	bool bt_ch_announce;
 	bool auto_agg;
diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 63ba21e..3688dc5 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -802,9 +802,6 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
 	u32 handled = 0;
 	unsigned long flags;
 	u32 i;
-#ifdef CONFIG_IWLWIFI_DEBUG
-	u32 inta_mask;
-#endif
 
 	lock_map_acquire(&trans->sync_cmd_lockdep_map);
 
@@ -826,14 +823,9 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
 
 	inta = trans_pcie->inta;
 
-#ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_have_debug_level(IWL_DL_ISR)) {
-		/* just for debug */
-		inta_mask = iwl_read32(trans, CSR_INT_MASK);
+	if (iwl_have_debug_level(IWL_DL_ISR))
 		IWL_DEBUG_ISR(trans, "inta 0x%08x, enabled 0x%08x\n",
-			      inta, inta_mask);
-	}
-#endif
+			      inta, iwl_read32(trans, CSR_INT_MASK));
 
 	/* saved interrupt in inta variable now we can reset trans_pcie->inta */
 	trans_pcie->inta = 0;
@@ -855,12 +847,11 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
 		goto out;
 	}
 
-#ifdef CONFIG_IWLWIFI_DEBUG
 	if (iwl_have_debug_level(IWL_DL_ISR)) {
 		/* NIC fires this, but we don't use it, redundant with WAKEUP */
 		if (inta & CSR_INT_BIT_SCD) {
-			IWL_DEBUG_ISR(trans, "Scheduler finished to transmit "
-				      "the frame/frames.\n");
+			IWL_DEBUG_ISR(trans,
+				      "Scheduler finished to transmit the frame/frames.\n");
 			isr_stats->sch++;
 		}
 
@@ -870,7 +861,7 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id)
 			isr_stats->alive++;
 		}
 	}
-#endif
+
 	/* Safely ignore these bits for debug checks below */
 	inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
 
@@ -1118,9 +1109,6 @@ static irqreturn_t iwl_pcie_isr(int irq, void *data)
 	struct iwl_trans *trans = data;
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	u32 inta, inta_mask;
-#ifdef CONFIG_IWLWIFI_DEBUG
-	u32 inta_fh;
-#endif
 
 	lockdep_assert_held(&trans_pcie->irq_lock);
 
@@ -1159,13 +1147,11 @@ static irqreturn_t iwl_pcie_isr(int irq, void *data)
 		return IRQ_HANDLED;
 	}
 
-#ifdef CONFIG_IWLWIFI_DEBUG
-	if (iwl_have_debug_level(IWL_DL_ISR)) {
-		inta_fh = iwl_read32(trans, CSR_FH_INT_STATUS);
-		IWL_DEBUG_ISR(trans, "ISR inta 0x%08x, enabled 0x%08x, "
-			      "fh 0x%08x\n", inta, inta_mask, inta_fh);
-	}
-#endif
+	if (iwl_have_debug_level(IWL_DL_ISR))
+		IWL_DEBUG_ISR(trans,
+			      "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+			      inta, inta_mask,
+			      iwl_read32(trans, CSR_FH_INT_STATUS));
 
 	trans_pcie->inta |= inta;
 	/* the thread will service interrupts and re-enable them */
@@ -1272,11 +1258,9 @@ irqreturn_t iwl_pcie_isr_ict(int irq, void *data)
 	inta = (0xff & val) | ((0xff00 & val) << 16);
 	IWL_DEBUG_ISR(trans, "ISR inta 0x%08x, enabled(sw) 0x%08x ict 0x%08x\n",
 		      inta, trans_pcie->inta_mask, val);
-#ifdef CONFIG_IWLWIFI_DEBUG
 	if (iwl_have_debug_level(IWL_DL_ISR))
 		IWL_DEBUG_ISR(trans, "enabled(hw) 0x%08x\n",
 			      iwl_read32(trans, CSR_INT_MASK));
-#endif
 
 	inta &= trans_pcie->inta_mask;
 	trans_pcie->inta |= inta;
-- 
cgit v0.10.2


From bc888f4078d549792e7b10a886f98271d5ad432b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 10 Jun 2013 15:58:13 +0200
Subject: iwlwifi: mvm: mark scratch area in TX command

Give the scratch area a sub structure so it's marked
explicitly and it is obvious which part it is.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
index 6994232..700cce7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
@@ -228,10 +228,11 @@ struct iwl_tx_cmd {
 	__le16 len;
 	__le16 next_frame_len;
 	__le32 tx_flags;
-	/* DRAM_SCRATCH_API_U_VER_1 */
-	u8 try_cnt;
-	u8 btkill_cnt;
-	__le16 reserved;
+	struct {
+		u8 try_cnt;
+		u8 btkill_cnt;
+		__le16 reserved;
+	} scratch; /* DRAM_SCRATCH_API_U_VER_1 */
 	__le32 rate_n_flags;
 	u8 sta_id;
 	u8 sec_ctl;
-- 
cgit v0.10.2


From 4f25bbdb160e4317f5d0efac90357d0a899a4be1 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 10 Jun 2013 16:12:52 +0200
Subject: iwlwifi: create opmode/device dependencies

The older devices (pre-7000/3000 series) all only work with the
DVM opmode due to firmware availability, while newer ones will
only work with the MVM opmode for the same reason.

When building a driver that only has one of MVM or DVM, there's
no reason to build the device support and have the PCIe IDs for
all devices since they can't be used anyway, so avoid that.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile
index 3b5613e..f55a758 100644
--- a/drivers/net/wireless/iwlwifi/Makefile
+++ b/drivers/net/wireless/iwlwifi/Makefile
@@ -7,14 +7,16 @@ iwlwifi-objs		+= iwl-notif-wait.o
 iwlwifi-objs		+= iwl-eeprom-read.o iwl-eeprom-parse.o
 iwlwifi-objs		+= iwl-phy-db.o iwl-nvm-parse.o
 iwlwifi-objs		+= pcie/drv.o pcie/rx.o pcie/tx.o pcie/trans.o
-iwlwifi-objs		+= iwl-1000.o iwl-2000.o iwl-5000.o iwl-6000.o iwl-7000.o
+iwlwifi-$(CONFIG_IWLDVM) += iwl-1000.o iwl-2000.o iwl-5000.o iwl-6000.o
+iwlwifi-$(CONFIG_IWLMVM) += iwl-7000.o
+
+iwlwifi-objs += $(iwlwifi-m)
 
 iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
 iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TESTMODE) += iwl-test.o
 
 ccflags-y += -D__CHECK_ENDIAN__ -I$(src)
 
-
 obj-$(CONFIG_IWLDVM)	+= dvm/
 obj-$(CONFIG_IWLMVM)	+= mvm/
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index a193832..0189b90 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -237,6 +237,7 @@ struct iwl_cfg {
 /*
  * This list declares the config structures for all devices.
  */
+#if IS_ENABLED(CONFIG_IWLDVM)
 extern const struct iwl_cfg iwl5300_agn_cfg;
 extern const struct iwl_cfg iwl5100_agn_cfg;
 extern const struct iwl_cfg iwl5350_agn_cfg;
@@ -278,11 +279,14 @@ extern const struct iwl_cfg iwl6035_2agn_cfg;
 extern const struct iwl_cfg iwl105_bgn_cfg;
 extern const struct iwl_cfg iwl105_bgn_d_cfg;
 extern const struct iwl_cfg iwl135_bgn_cfg;
+#endif /* CONFIG_IWLDVM */
+#if IS_ENABLED(CONFIG_IWLMVM)
 extern const struct iwl_cfg iwl7260_2ac_cfg;
 extern const struct iwl_cfg iwl7260_2n_cfg;
 extern const struct iwl_cfg iwl7260_n_cfg;
 extern const struct iwl_cfg iwl3160_2ac_cfg;
 extern const struct iwl_cfg iwl3160_2n_cfg;
 extern const struct iwl_cfg iwl3160_n_cfg;
+#endif /* CONFIG_IWLMVM */
 
 #endif /* __IWL_CONFIG_H__ */
diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index db7bdd3..81f3ea5 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -78,6 +78,7 @@
 
 /* Hardware specific file defines the PCI IDs table for that hardware module */
 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
+#if IS_ENABLED(CONFIG_IWLDVM)
 	{IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */
 	{IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */
@@ -253,7 +254,9 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 	{IWL_PCI_DEVICE(0x0892, 0x0062, iwl135_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0893, 0x0262, iwl135_bgn_cfg)},
 	{IWL_PCI_DEVICE(0x0892, 0x0462, iwl135_bgn_cfg)},
+#endif /* CONFIG_IWLDVM */
 
+#if IS_ENABLED(CONFIG_IWLMVM)
 /* 7000 Series */
 	{IWL_PCI_DEVICE(0x08B1, 0x4070, iwl7260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x08B1, 0x4170, iwl7260_2ac_cfg)},
@@ -304,6 +307,7 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 	{IWL_PCI_DEVICE(0x08B3, 0x8062, iwl3160_n_cfg)},
 	{IWL_PCI_DEVICE(0x08B4, 0x8270, iwl3160_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x08B3, 0x8470, iwl3160_2ac_cfg)},
+#endif /* CONFIG_IWLMVM */
 
 	{0}
 };
-- 
cgit v0.10.2


From ebea2f32e814445f94f9e087b646f1cf4d55fa5a Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu, 13 Jun 2013 10:07:47 +0300
Subject: iwlwifi: mvm: take the seqno from packet if transmit failed

The fw is unreliable in all the cases in which the packet
wasn't sent.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index a830eb6..72fc580 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -609,8 +609,8 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 		    !(info->flags & IEEE80211_TX_STAT_ACK))
 			info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
 
-		/* W/A FW bug: seq_ctl is wrong when the queue is flushed */
-		if (status == TX_STATUS_FAIL_FIFO_FLUSHED) {
+		/* W/A FW bug: seq_ctl is wrong when the status isn't success */
+		if (status != TX_STATUS_SUCCESS) {
 			struct ieee80211_hdr *hdr = (void *)skb->data;
 			seq_ctl = le16_to_cpu(hdr->seq_ctrl);
 		}
-- 
cgit v0.10.2


From adaf69186c24100d34c2fb107dacd33546cad3c5 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu, 13 Jun 2013 10:25:43 +0300
Subject: iwlwifi: mvm: remove obsolete comment

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 72fc580..42df1fd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -407,7 +407,6 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
 	IWL_DEBUG_TX(mvm, "TX to [%d|%d] Q:%d - seq: 0x%x\n", mvmsta->sta_id,
 		     tid, txq_id, seq_number);
 
-	/* NOTE: aggregation will need changes here (for txq id) */
 	if (iwl_trans_tx(mvm->trans, skb, dev_cmd, txq_id))
 		goto drop_unlock_sta;
 
-- 
cgit v0.10.2


From b967613d7e7c7bad176f5627c55e2d8c5aa2480e Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu, 13 Jun 2013 11:45:59 +0300
Subject: iwlwifi: pcie: fix race in queue unmapping

When a queue is disabled, it frees all its entries. Later,
the op_mode might still get notifications from the firmware
that triggers to free entries in the tx queue. The transport
should be prepared for these races and know to ignore
reclaim calls on queues that have been disabled and whose
entries have been freed.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index c5e3029..51fca42 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -576,9 +576,12 @@ static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id)
 
 	spin_lock_bh(&txq->lock);
 	while (q->write_ptr != q->read_ptr) {
+		IWL_DEBUG_TX_REPLY(trans, "Q %d Free %d\n",
+				   txq_id, q->read_ptr);
 		iwl_pcie_txq_free_tfd(trans, txq);
 		q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd);
 	}
+	txq->active = false;
 	spin_unlock_bh(&txq->lock);
 }
 
@@ -927,6 +930,12 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 
 	spin_lock_bh(&txq->lock);
 
+	if (!txq->active) {
+		IWL_DEBUG_TX_QUEUES(trans, "Q %d inactive - ignoring idx %d\n",
+				    txq_id, ssn);
+		goto out;
+	}
+
 	if (txq->q.read_ptr == tfd_num)
 		goto out;
 
@@ -1103,6 +1112,7 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo,
 		       (fifo << SCD_QUEUE_STTS_REG_POS_TXF) |
 		       (1 << SCD_QUEUE_STTS_REG_POS_WSL) |
 		       SCD_QUEUE_STTS_REG_MSK);
+	trans_pcie->txq[txq_id].active = true;
 	IWL_DEBUG_TX_QUEUES(trans, "Activate queue %d on FIFO %d WrPtr: %d\n",
 			    txq_id, fifo, ssn & 0xff);
 }
-- 
cgit v0.10.2


From 8a487b1a7432b20ff3f82387a8ce7555a964b44e Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu, 13 Jun 2013 13:10:00 +0300
Subject: iwlwifi: pcie: wake the queue if stopped when being unmapped

When the queue is unmapped while it was so loaded that
mac80211's was stopped, we need to wake the queue after
having freed all the packets in the queue.
Not doing so can result in weird stuff like:

* run lots of traffic (mac80211's queue gets stopped)
* RFKILL
* de-assert RFKILL
* no traffic

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 51fca42..48acfc6 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -583,6 +583,9 @@ static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id)
 	}
 	txq->active = false;
 	spin_unlock_bh(&txq->lock);
+
+	/* just in case - this queue may have been stopped */
+	iwl_wake_queue(trans, txq);
 }
 
 /*
-- 
cgit v0.10.2


From 178c059e7640aa8e50213400c6f3dde00189d979 Mon Sep 17 00:00:00 2001
From: "Cho, Yu-Chen" <acho@suse.com>
Date: Tue, 4 Jun 2013 21:40:26 +0800
Subject: Bluetooth: Add support for Mediatek Bluetooth device [0e8d:763f]

This patch adds support for Mediatek Bluetooth device

T:  Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#=  2 Spd=480  MxCh= 0
D:  Ver= 2.01 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0e8d ProdID=763f Rev= 1.00
S:  Manufacturer=MediaTek
S:  Product=BT
S:  SerialNumber=1.0
C:* #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=450mA
A:  FirstIf#= 0 IfCount= 2 Cls=ff(vend.) Sub=ff Prot=ff
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=125us
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 1 Alt= 6 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  63 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  63 Ivl=1ms

Signed-off-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 7a7e5f8..81f1275 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -57,6 +57,9 @@ static struct usb_device_id btusb_table[] = {
 	/* Apple-specific (Broadcom) devices */
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
 
+	/* MediaTek MT76x0E */
+	{ USB_DEVICE(0x0e8d, 0x763f) },
+
 	/* Broadcom SoftSailing reporting vendor specific */
 	{ USB_DEVICE(0x0a5c, 0x21e1) },
 
-- 
cgit v0.10.2


From 6ea81c415574acb88faca905e1d7316057e90a5b Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 5 Jun 2013 10:16:55 +0800
Subject: Bluetooth: btmrvl: fix error return code in
 btmrvl_sdio_card_to_host()

Fix to return -ENOMEM in the skb alloc error handling case
instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 13693b7..75c2626 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -554,6 +554,7 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
 	skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC);
 	if (skb == NULL) {
 		BT_ERR("No free skb");
+		ret = -ENOMEM;
 		goto exit;
 	}
 
-- 
cgit v0.10.2


From 9ad86ed39db83d0c3111c10850e58691ef57e81e Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@googlemail.com>
Date: Wed, 12 Jun 2013 21:35:39 +0200
Subject: carl9170: add support for the new rate control API

With the new rate control API, the driver can now apply the
tx rate to outgoing frames just before they are uploaded to
the device. This is important because the rate control can
now react to fading or improving links a bit sooner.

Also, the driver no longer needs to sort the outgoing frames
for sample attempts (which affected the size of A-MPDUs and
the throughput of the link). For aggregated data frames, the
driver (and rate control) needs only to calculate and apply
a single set of tx rates to every subframe of the whole
aggregate.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h
index 9dce106..8596aba 100644
--- a/drivers/net/wireless/ath/carl9170/carl9170.h
+++ b/drivers/net/wireless/ath/carl9170/carl9170.h
@@ -133,6 +133,9 @@ struct carl9170_sta_tid {
 
 	/* Preaggregation reorder queue */
 	struct sk_buff_head queue;
+
+	struct ieee80211_sta *sta;
+	struct ieee80211_vif *vif;
 };
 
 #define CARL9170_QUEUE_TIMEOUT		256
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index e9010a4..4a33c6e 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -1448,6 +1448,8 @@ static int carl9170_op_ampdu_action(struct ieee80211_hw *hw,
 		tid_info->state = CARL9170_TID_STATE_PROGRESS;
 		tid_info->tid = tid;
 		tid_info->max = sta_info->ampdu_max_len;
+		tid_info->sta = sta;
+		tid_info->vif = vif;
 
 		INIT_LIST_HEAD(&tid_info->list);
 		INIT_LIST_HEAD(&tid_info->tmp_list);
@@ -1857,6 +1859,7 @@ void *carl9170_alloc(size_t priv_size)
 		     IEEE80211_HW_SUPPORTS_PS |
 		     IEEE80211_HW_PS_NULLFUNC_STACK |
 		     IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC |
+		     IEEE80211_HW_SUPPORTS_RC_TABLE |
 		     IEEE80211_HW_SIGNAL_DBM;
 
 	if (!modparam_noht) {
diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c
index c61cafa..e3f696e 100644
--- a/drivers/net/wireless/ath/carl9170/tx.c
+++ b/drivers/net/wireless/ath/carl9170/tx.c
@@ -625,7 +625,7 @@ static void carl9170_tx_ampdu_timeout(struct ar9170 *ar)
 		    msecs_to_jiffies(CARL9170_QUEUE_TIMEOUT)))
 			goto unlock;
 
-		sta = __carl9170_get_tx_sta(ar, skb);
+		sta = iter->sta;
 		if (WARN_ON(!sta))
 			goto unlock;
 
@@ -866,6 +866,93 @@ static bool carl9170_tx_cts_check(struct ar9170 *ar,
 	return false;
 }
 
+static void carl9170_tx_get_rates(struct ar9170 *ar,
+				  struct ieee80211_vif *vif,
+				  struct ieee80211_sta *sta,
+				  struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info;
+
+	BUILD_BUG_ON(IEEE80211_TX_MAX_RATES < CARL9170_TX_MAX_RATES);
+	BUILD_BUG_ON(IEEE80211_TX_MAX_RATES > IEEE80211_TX_RATE_TABLE_SIZE);
+
+	info = IEEE80211_SKB_CB(skb);
+
+	ieee80211_get_tx_rates(vif, sta, skb,
+			       info->control.rates,
+			       IEEE80211_TX_MAX_RATES);
+}
+
+static void carl9170_tx_apply_rateset(struct ar9170 *ar,
+				      struct ieee80211_tx_info *sinfo,
+				      struct sk_buff *skb)
+{
+	struct ieee80211_tx_rate *txrate;
+	struct ieee80211_tx_info *info;
+	struct _carl9170_tx_superframe *txc = (void *) skb->data;
+	int i;
+	bool ampdu;
+	bool no_ack;
+
+	info = IEEE80211_SKB_CB(skb);
+	ampdu = !!(info->flags & IEEE80211_TX_CTL_AMPDU);
+	no_ack = !!(info->flags & IEEE80211_TX_CTL_NO_ACK);
+
+	/* Set the rate control probe flag for all (sub-) frames.
+	 * This is because the TX_STATS_AMPDU flag is only set on
+	 * the last frame, so it has to be inherited.
+	 */
+	info->flags |= (sinfo->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE);
+
+	/* NOTE: For the first rate, the ERP & AMPDU flags are directly
+	 * taken from mac_control. For all fallback rate, the firmware
+	 * updates the mac_control flags from the rate info field.
+	 */
+	for (i = 0; i < CARL9170_TX_MAX_RATES; i++) {
+		__le32 phy_set;
+
+		txrate = &sinfo->control.rates[i];
+		if (txrate->idx < 0)
+			break;
+
+		phy_set = carl9170_tx_physet(ar, info, txrate);
+		if (i == 0) {
+			__le16 mac_tmp = cpu_to_le16(0);
+
+			/* first rate - part of the hw's frame header */
+			txc->f.phy_control = phy_set;
+
+			if (ampdu && txrate->flags & IEEE80211_TX_RC_MCS)
+				mac_tmp |= cpu_to_le16(AR9170_TX_MAC_AGGR);
+
+			if (carl9170_tx_rts_check(ar, txrate, ampdu, no_ack))
+				mac_tmp |= cpu_to_le16(AR9170_TX_MAC_PROT_RTS);
+			else if (carl9170_tx_cts_check(ar, txrate))
+				mac_tmp |= cpu_to_le16(AR9170_TX_MAC_PROT_CTS);
+
+			txc->f.mac_control |= mac_tmp;
+		} else {
+			/* fallback rates are stored in the firmware's
+			 * retry rate set array.
+			 */
+			txc->s.rr[i - 1] = phy_set;
+		}
+
+		SET_VAL(CARL9170_TX_SUPER_RI_TRIES, txc->s.ri[i],
+			txrate->count);
+
+		if (carl9170_tx_rts_check(ar, txrate, ampdu, no_ack))
+			txc->s.ri[i] |= (AR9170_TX_MAC_PROT_RTS <<
+				CARL9170_TX_SUPER_RI_ERP_PROT_S);
+		else if (carl9170_tx_cts_check(ar, txrate))
+			txc->s.ri[i] |= (AR9170_TX_MAC_PROT_CTS <<
+				CARL9170_TX_SUPER_RI_ERP_PROT_S);
+
+		if (ampdu && (txrate->flags & IEEE80211_TX_RC_MCS))
+			txc->s.ri[i] |= CARL9170_TX_SUPER_RI_AMPDU;
+	}
+}
+
 static int carl9170_tx_prepare(struct ar9170 *ar,
 			       struct ieee80211_sta *sta,
 			       struct sk_buff *skb)
@@ -874,13 +961,10 @@ static int carl9170_tx_prepare(struct ar9170 *ar,
 	struct _carl9170_tx_superframe *txc;
 	struct carl9170_vif_info *cvif;
 	struct ieee80211_tx_info *info;
-	struct ieee80211_tx_rate *txrate;
 	struct carl9170_tx_info *arinfo;
 	unsigned int hw_queue;
-	int i;
 	__le16 mac_tmp;
 	u16 len;
-	bool ampdu, no_ack;
 
 	BUILD_BUG_ON(sizeof(*arinfo) > sizeof(info->rate_driver_data));
 	BUILD_BUG_ON(sizeof(struct _carl9170_tx_superdesc) !=
@@ -889,8 +973,6 @@ static int carl9170_tx_prepare(struct ar9170 *ar,
 	BUILD_BUG_ON(sizeof(struct _ar9170_tx_hwdesc) !=
 		     AR9170_TX_HWDESC_LEN);
 
-	BUILD_BUG_ON(IEEE80211_TX_MAX_RATES < CARL9170_TX_MAX_RATES);
-
 	BUILD_BUG_ON(AR9170_MAX_VIRTUAL_MAC >
 		((CARL9170_TX_SUPER_MISC_VIF_ID >>
 		 CARL9170_TX_SUPER_MISC_VIF_ID_S) + 1));
@@ -932,8 +1014,7 @@ static int carl9170_tx_prepare(struct ar9170 *ar,
 	mac_tmp |= cpu_to_le16((hw_queue << AR9170_TX_MAC_QOS_S) &
 			       AR9170_TX_MAC_QOS);
 
-	no_ack = !!(info->flags & IEEE80211_TX_CTL_NO_ACK);
-	if (unlikely(no_ack))
+	if (unlikely(info->flags & IEEE80211_TX_CTL_NO_ACK))
 		mac_tmp |= cpu_to_le16(AR9170_TX_MAC_NO_ACK);
 
 	if (info->control.hw_key) {
@@ -954,8 +1035,7 @@ static int carl9170_tx_prepare(struct ar9170 *ar,
 		}
 	}
 
-	ampdu = !!(info->flags & IEEE80211_TX_CTL_AMPDU);
-	if (ampdu) {
+	if (info->flags & IEEE80211_TX_CTL_AMPDU) {
 		unsigned int density, factor;
 
 		if (unlikely(!sta || !cvif))
@@ -982,50 +1062,6 @@ static int carl9170_tx_prepare(struct ar9170 *ar,
 			txc->s.ampdu_settings, factor);
 	}
 
-	/*
-	 * NOTE: For the first rate, the ERP & AMPDU flags are directly
-	 * taken from mac_control. For all fallback rate, the firmware
-	 * updates the mac_control flags from the rate info field.
-	 */
-	for (i = 0; i < CARL9170_TX_MAX_RATES; i++) {
-		__le32 phy_set;
-		txrate = &info->control.rates[i];
-		if (txrate->idx < 0)
-			break;
-
-		phy_set = carl9170_tx_physet(ar, info, txrate);
-		if (i == 0) {
-			/* first rate - part of the hw's frame header */
-			txc->f.phy_control = phy_set;
-
-			if (ampdu && txrate->flags & IEEE80211_TX_RC_MCS)
-				mac_tmp |= cpu_to_le16(AR9170_TX_MAC_AGGR);
-			if (carl9170_tx_rts_check(ar, txrate, ampdu, no_ack))
-				mac_tmp |= cpu_to_le16(AR9170_TX_MAC_PROT_RTS);
-			else if (carl9170_tx_cts_check(ar, txrate))
-				mac_tmp |= cpu_to_le16(AR9170_TX_MAC_PROT_CTS);
-
-		} else {
-			/* fallback rates are stored in the firmware's
-			 * retry rate set array.
-			 */
-			txc->s.rr[i - 1] = phy_set;
-		}
-
-		SET_VAL(CARL9170_TX_SUPER_RI_TRIES, txc->s.ri[i],
-			txrate->count);
-
-		if (carl9170_tx_rts_check(ar, txrate, ampdu, no_ack))
-			txc->s.ri[i] |= (AR9170_TX_MAC_PROT_RTS <<
-				CARL9170_TX_SUPER_RI_ERP_PROT_S);
-		else if (carl9170_tx_cts_check(ar, txrate))
-			txc->s.ri[i] |= (AR9170_TX_MAC_PROT_CTS <<
-				CARL9170_TX_SUPER_RI_ERP_PROT_S);
-
-		if (ampdu && (txrate->flags & IEEE80211_TX_RC_MCS))
-			txc->s.ri[i] |= CARL9170_TX_SUPER_RI_AMPDU;
-	}
-
 	txc->s.len = cpu_to_le16(skb->len);
 	txc->f.length = cpu_to_le16(len + FCS_LEN);
 	txc->f.mac_control = mac_tmp;
@@ -1086,31 +1122,12 @@ static void carl9170_set_ampdu_params(struct ar9170 *ar, struct sk_buff *skb)
 	}
 }
 
-static bool carl9170_tx_rate_check(struct ar9170 *ar, struct sk_buff *_dest,
-				   struct sk_buff *_src)
-{
-	struct _carl9170_tx_superframe *dest, *src;
-
-	dest = (void *) _dest->data;
-	src = (void *) _src->data;
-
-	/*
-	 * The mac80211 rate control algorithm expects that all MPDUs in
-	 * an AMPDU share the same tx vectors.
-	 * This is not really obvious right now, because the hardware
-	 * does the AMPDU setup according to its own rulebook.
-	 * Our nicely assembled, strictly monotonic increasing mpdu
-	 * chains will be broken up, mashed back together...
-	 */
-
-	return (dest->f.phy_control == src->f.phy_control);
-}
-
 static void carl9170_tx_ampdu(struct ar9170 *ar)
 {
 	struct sk_buff_head agg;
 	struct carl9170_sta_tid *tid_info;
 	struct sk_buff *skb, *first;
+	struct ieee80211_tx_info *tx_info_first;
 	unsigned int i = 0, done_ampdus = 0;
 	u16 seq, queue, tmpssn;
 
@@ -1156,6 +1173,7 @@ retry:
 			goto processed;
 		}
 
+		tx_info_first = NULL;
 		while ((skb = skb_peek(&tid_info->queue))) {
 			/* strict 0, 1, ..., n - 1, n frame sequence order */
 			if (unlikely(carl9170_get_seq(skb) != seq))
@@ -1166,8 +1184,13 @@ retry:
 			    (tid_info->max - 1)))
 				break;
 
-			if (!carl9170_tx_rate_check(ar, skb, first))
-				break;
+			if (!tx_info_first) {
+				carl9170_tx_get_rates(ar, tid_info->vif,
+						      tid_info->sta, first);
+				tx_info_first = IEEE80211_SKB_CB(first);
+			}
+
+			carl9170_tx_apply_rateset(ar, tx_info_first, skb);
 
 			atomic_inc(&ar->tx_ampdu_upload);
 			tid_info->snx = seq = SEQ_NEXT(seq);
@@ -1182,8 +1205,7 @@ retry:
 		if (skb_queue_empty(&tid_info->queue) ||
 		    carl9170_get_seq(skb_peek(&tid_info->queue)) !=
 		    tid_info->snx) {
-			/*
-			 * stop TID, if A-MPDU frames are still missing,
+			/* stop TID, if A-MPDU frames are still missing,
 			 * or whenever the queue is empty.
 			 */
 
@@ -1450,12 +1472,14 @@ void carl9170_op_tx(struct ieee80211_hw *hw,
 	struct ar9170 *ar = hw->priv;
 	struct ieee80211_tx_info *info;
 	struct ieee80211_sta *sta = control->sta;
+	struct ieee80211_vif *vif;
 	bool run;
 
 	if (unlikely(!IS_STARTED(ar)))
 		goto err_free;
 
 	info = IEEE80211_SKB_CB(skb);
+	vif = info->control.vif;
 
 	if (unlikely(carl9170_tx_prepare(ar, sta, skb)))
 		goto err_free;
@@ -1486,6 +1510,8 @@ void carl9170_op_tx(struct ieee80211_hw *hw,
 	} else {
 		unsigned int queue = skb_get_queue_mapping(skb);
 
+		carl9170_tx_get_rates(ar, vif, sta, skb);
+		carl9170_tx_apply_rateset(ar, info, skb);
 		skb_queue_tail(&ar->tx_pending[queue], skb);
 	}
 
-- 
cgit v0.10.2


From fca97d763dc662db446c9a6e5486ef0c77d8ad5b Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Thu, 13 Jun 2013 08:52:09 +0530
Subject: ath9k: Fix ANI trigger threshold

Since raising/lowering the limits based on INI has
been changed, the error limit for OFDM has to be 1000,
not 3500.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index b75aea2..77a06fd 100644
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -20,7 +20,7 @@
 #define BEACON_RSSI(ahp) (ahp->stats.avgbrssi)
 
 /* units are errors per second */
-#define ATH9K_ANI_OFDM_TRIG_HIGH          3500
+#define ATH9K_ANI_OFDM_TRIG_HIGH          1000
 #define ATH9K_ANI_OFDM_TRIG_LOW           400
 #define ATH9K_ANI_CCK_TRIG_HIGH           600
 #define ATH9K_ANI_CCK_TRIG_LOW            300
-- 
cgit v0.10.2


From 9c59844005c22700b36dcdbafeea7956b7f4b174 Mon Sep 17 00:00:00 2001
From: Arron Wang <arron.wang@intel.com>
Date: Mon, 22 Apr 2013 17:21:04 +0800
Subject: NFC: pn544: Identify Type F NFC-DEP through NFCID2

NFCID2 is defined as the first 2 manufacturer ID (IDm) bytes.
NFC DEP (NFC peer to peer) devices Type-F NFCID2 must start with
0x01fe according to the NFC Digital Specification.
By checking those first 2 bytes we send the right command either to the
reader gate when NFCID2 != 0x1fe (The NFC tag case) or to the NFCIP1 gate
when seeing an NFC DEP device (The NFC peer to peer case).

Without this fix, Felica (Type F) tags are not properly detected with this
driver.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 9c5f16e..0963de2 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -551,20 +551,25 @@ static int pn544_hci_complete_target_discovered(struct nfc_hci_dev *hdev,
 			return -EPROTO;
 		}
 
-		r = nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE,
-				     PN544_RF_READER_CMD_ACTIVATE_NEXT,
-				     uid_skb->data, uid_skb->len, NULL);
-		kfree_skb(uid_skb);
-
-		r = nfc_hci_send_cmd(hdev,
+		/* Type F NFC-DEP IDm has prefix 0x01FE */
+		if ((uid_skb->data[0] == 0x01) && (uid_skb->data[1] == 0xfe)) {
+			kfree_skb(uid_skb);
+			r = nfc_hci_send_cmd(hdev,
 					PN544_RF_READER_NFCIP1_INITIATOR_GATE,
 					PN544_HCI_CMD_CONTINUE_ACTIVATION,
 					NULL, 0, NULL);
-		if (r < 0)
-			return r;
+			if (r < 0)
+				return r;
 
-		target->hci_reader_gate = PN544_RF_READER_NFCIP1_INITIATOR_GATE;
-		target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+			target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+			target->hci_reader_gate =
+				PN544_RF_READER_NFCIP1_INITIATOR_GATE;
+		} else {
+			r = nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE,
+					     PN544_RF_READER_CMD_ACTIVATE_NEXT,
+					     uid_skb->data, uid_skb->len, NULL);
+			kfree_skb(uid_skb);
+		}
 	} else if (target->supported_protocols & NFC_PROTO_ISO14443_MASK) {
 		/*
 		 * TODO: maybe other ISO 14443 require some kind of continue
-- 
cgit v0.10.2


From a69bdc1ecd032fda1bc808fa0e1634bbc9417ad5 Mon Sep 17 00:00:00 2001
From: Arron Wang <arron.wang@intel.com>
Date: Mon, 22 Apr 2013 17:21:27 +0800
Subject: NFC: pn544: Remove Felica and Jewel device presence check

There is no builtin command for driver to check the presence of
Felica and Jewel device, it is more reasonable for the userspace
daemon neard to build seperate commands to check the presence of
the card.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 0963de2..84b5168 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -711,12 +711,9 @@ static int pn544_hci_check_presence(struct nfc_hci_dev *hdev,
 		 return nfc_hci_send_cmd(hdev, NFC_HCI_RF_READER_A_GATE,
 				     PN544_RF_READER_CMD_ACTIVATE_NEXT,
 				     target->nfcid1, target->nfcid1_len, NULL);
-	} else if (target->supported_protocols & NFC_PROTO_JEWEL_MASK) {
-		return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
-					PN544_JEWEL_RAW_CMD, NULL, 0, NULL);
-	} else if (target->supported_protocols & NFC_PROTO_FELICA_MASK) {
-		return nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE,
-					PN544_FELICA_RAW, NULL, 0, NULL);
+	} else if (target->supported_protocols & (NFC_PROTO_JEWEL_MASK |
+						NFC_PROTO_FELICA_MASK)) {
+		return -EOPNOTSUPP;
 	} else if (target->supported_protocols & NFC_PROTO_NFC_DEP_MASK) {
 		return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
 					PN544_HCI_CMD_ATTREQUEST,
-- 
cgit v0.10.2


From 4674d0fecbeeb9731274f03ff35a108630be4585 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 7 May 2013 20:07:52 +0800
Subject: NFC: pn533: Fix error return code in pn533_probe()

Fix to return -ENOMEM in the nfc device alloc error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 8f6f2ba..0bdfa88 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -2783,8 +2783,10 @@ static int pn533_probe(struct usb_interface *interface,
 					   dev->ops->tx_header_len +
 					   PN533_CMD_DATAEXCH_HEAD_LEN,
 					   dev->ops->tx_tail_len);
-	if (!dev->nfc_dev)
+	if (!dev->nfc_dev) {
+		rc = -ENOMEM;
 		goto destroy_wq;
+	}
 
 	nfc_set_parent_dev(dev->nfc_dev, &interface->dev);
 	nfc_set_drvdata(dev->nfc_dev, dev);
-- 
cgit v0.10.2


From 1095e69f47926db6f1350a9d6a38626521580e87 Mon Sep 17 00:00:00 2001
From: Frederic Danis <frederic.danis@linux.intel.com>
Date: Wed, 22 May 2013 11:36:17 +0200
Subject: NFC: NCI: Fix skb->dev usage

skb->dev is used for carrying a net_device pointer and not
an nci_dev pointer.

Remove usage of skb-dev to carry nci_dev and replace it by parameter
in nci_recv_frame(), nci_send_frame() and driver send() functions.

NfcWilink driver is also updated to use those functions.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index 3b731ac..41cf8f7 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -109,7 +109,7 @@ enum {
 	NFCWILINK_FW_DOWNLOAD,
 };
 
-static int nfcwilink_send(struct sk_buff *skb);
+static int nfcwilink_send(struct nci_dev *ndev, struct sk_buff *skb);
 
 static inline struct sk_buff *nfcwilink_skb_alloc(unsigned int len, gfp_t how)
 {
@@ -156,8 +156,6 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
 		return -ENOMEM;
 	}
 
-	skb->dev = (void *)drv->ndev;
-
 	cmd = (struct nci_vs_nfcc_info_cmd *)
 			skb_put(skb, sizeof(struct nci_vs_nfcc_info_cmd));
 	cmd->gid = NCI_VS_NFCC_INFO_CMD_GID;
@@ -166,7 +164,7 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
 
 	drv->nfcc_info.plen = 0;
 
-	rc = nfcwilink_send(skb);
+	rc = nfcwilink_send(drv->ndev, skb);
 	if (rc)
 		return rc;
 
@@ -232,11 +230,9 @@ static int nfcwilink_send_bts_cmd(struct nfcwilink *drv, __u8 *data, int len)
 		return -ENOMEM;
 	}
 
-	skb->dev = (void *)drv->ndev;
-
 	memcpy(skb_put(skb, len), data, len);
 
-	rc = nfcwilink_send(skb);
+	rc = nfcwilink_send(drv->ndev, skb);
 	if (rc)
 		return rc;
 
@@ -371,10 +367,8 @@ static long nfcwilink_receive(void *priv_data, struct sk_buff *skb)
 		return 0;
 	}
 
-	skb->dev = (void *) drv->ndev;
-
 	/* Forward skb to NCI core layer */
-	rc = nci_recv_frame(skb);
+	rc = nci_recv_frame(drv->ndev, skb);
 	if (rc < 0) {
 		nfc_dev_err(&drv->pdev->dev, "nci_recv_frame failed %d", rc);
 		return rc;
@@ -480,9 +474,8 @@ static int nfcwilink_close(struct nci_dev *ndev)
 	return rc;
 }
 
-static int nfcwilink_send(struct sk_buff *skb)
+static int nfcwilink_send(struct nci_dev *ndev, struct sk_buff *skb)
 {
-	struct nci_dev *ndev = (struct nci_dev *)skb->dev;
 	struct nfcwilink *drv = nci_get_drvdata(ndev);
 	struct nfcwilink_hdr hdr = {NFCWILINK_CHNL, NFCWILINK_OPCODE, 0x0000};
 	long len;
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 5bc0c46..1009d3d 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -66,7 +66,7 @@ struct nci_dev;
 struct nci_ops {
 	int (*open)(struct nci_dev *ndev);
 	int (*close)(struct nci_dev *ndev);
-	int (*send)(struct sk_buff *skb);
+	int (*send)(struct nci_dev *ndev, struct sk_buff *skb);
 };
 
 #define NCI_MAX_SUPPORTED_RF_INTERFACES		4
@@ -153,7 +153,7 @@ struct nci_dev *nci_allocate_device(struct nci_ops *ops,
 void nci_free_device(struct nci_dev *ndev);
 int nci_register_device(struct nci_dev *ndev);
 void nci_unregister_device(struct nci_dev *ndev);
-int nci_recv_frame(struct sk_buff *skb);
+int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
 
 static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev,
 					    unsigned int len,
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 48ada0e..8e0dbbe 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -797,12 +797,11 @@ EXPORT_SYMBOL(nci_unregister_device);
 /**
  * nci_recv_frame - receive frame from NCI drivers
  *
+ * @ndev: The nci device
  * @skb: The sk_buff to receive
  */
-int nci_recv_frame(struct sk_buff *skb)
+int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb)
 {
-	struct nci_dev *ndev = (struct nci_dev *) skb->dev;
-
 	pr_debug("len %d\n", skb->len);
 
 	if (!ndev || (!test_bit(NCI_UP, &ndev->flags) &&
@@ -819,10 +818,8 @@ int nci_recv_frame(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(nci_recv_frame);
 
-static int nci_send_frame(struct sk_buff *skb)
+static int nci_send_frame(struct nci_dev *ndev, struct sk_buff *skb)
 {
-	struct nci_dev *ndev = (struct nci_dev *) skb->dev;
-
 	pr_debug("len %d\n", skb->len);
 
 	if (!ndev) {
@@ -833,7 +830,7 @@ static int nci_send_frame(struct sk_buff *skb)
 	/* Get rid of skb owner, prior to sending to the driver. */
 	skb_orphan(skb);
 
-	return ndev->ops->send(skb);
+	return ndev->ops->send(ndev, skb);
 }
 
 /* Send NCI command */
@@ -861,8 +858,6 @@ int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload)
 	if (plen)
 		memcpy(skb_put(skb, plen), payload, plen);
 
-	skb->dev = (void *) ndev;
-
 	skb_queue_tail(&ndev->cmd_q, skb);
 	queue_work(ndev->cmd_wq, &ndev->cmd_work);
 
@@ -894,7 +889,7 @@ static void nci_tx_work(struct work_struct *work)
 			 nci_conn_id(skb->data),
 			 nci_plen(skb->data));
 
-		nci_send_frame(skb);
+		nci_send_frame(ndev, skb);
 
 		mod_timer(&ndev->data_timer,
 			  jiffies + msecs_to_jiffies(NCI_DATA_TIMEOUT));
@@ -963,7 +958,7 @@ static void nci_cmd_work(struct work_struct *work)
 			 nci_opcode_oid(nci_opcode(skb->data)),
 			 nci_plen(skb->data));
 
-		nci_send_frame(skb);
+		nci_send_frame(ndev, skb);
 
 		mod_timer(&ndev->cmd_timer,
 			  jiffies + msecs_to_jiffies(NCI_CMD_TIMEOUT));
diff --git a/net/nfc/nci/data.c b/net/nfc/nci/data.c
index 76c48c5..2a9399d 100644
--- a/net/nfc/nci/data.c
+++ b/net/nfc/nci/data.c
@@ -80,8 +80,6 @@ static inline void nci_push_data_hdr(struct nci_dev *ndev,
 
 	nci_mt_set((__u8 *)hdr, NCI_MT_DATA_PKT);
 	nci_pbf_set((__u8 *)hdr, pbf);
-
-	skb->dev = (void *) ndev;
 }
 
 static int nci_queue_tx_data_frags(struct nci_dev *ndev,
-- 
cgit v0.10.2


From 9674da8759df0d6c0d24e1ede6e2a1acdef91e3c Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Mon, 29 Apr 2013 17:13:27 +0200
Subject: NFC: Add firmware upload netlink command

As several NFC chipsets can have their firmwares upgraded and
reflashed, this patchset adds a new netlink command to trigger
that the driver loads or flashes a new firmware. This will allows
userspace triggered firmware upgrade through netlink.
The firmware name or hint is passed as a parameter, and the driver
will eventually fetch the firmware binary through the request_firmware
API.
The cmd can only be executed when the nfc dev is not in use. Actual
firmware loading/flashing is an asynchronous operation. Result of the
operation shall send a new event up to user space through the nfc dev
multicast socket. During operation, the nfc dev is not openable and
thus not usable.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 5eb80bb..3563dbd 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -70,6 +70,7 @@ struct nfc_ops {
 	int (*check_presence)(struct nfc_dev *dev, struct nfc_target *target);
 	int (*enable_se)(struct nfc_dev *dev, u32 secure_element);
 	int (*disable_se)(struct nfc_dev *dev, u32 secure_element);
+	int (*fw_upload)(struct nfc_dev *dev, const char *firmware_name);
 };
 
 #define NFC_TARGET_IDX_ANY -1
@@ -104,6 +105,7 @@ struct nfc_dev {
 	int targets_generation;
 	struct device dev;
 	bool dev_up;
+	bool fw_upload_in_progress;
 	u8 rf_mode;
 	bool polling;
 	struct nfc_target *active_target;
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index 7c6f627..b6cbd16 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -69,6 +69,8 @@
  *	starting a poll from a device which has a secure element enabled means
  *	we want to do SE based card emulation.
  * @NFC_CMD_DISABLE_SE: Disable the physical link to a specific secure element.
+ * @NFC_CMD_FW_UPLOAD: Request to Load/flash firmware, or event to inform that
+ *	some firmware was loaded
  */
 enum nfc_commands {
 	NFC_CMD_UNSPEC,
@@ -92,6 +94,7 @@ enum nfc_commands {
 	NFC_CMD_DISABLE_SE,
 	NFC_CMD_LLC_SDREQ,
 	NFC_EVENT_LLC_SDRES,
+	NFC_CMD_FW_UPLOAD,
 /* private: internal use only */
 	__NFC_CMD_AFTER_LAST
 };
@@ -121,6 +124,7 @@ enum nfc_commands {
  * @NFC_ATTR_LLC_PARAM_RW: Receive Window size parameter
  * @NFC_ATTR_LLC_PARAM_MIUX: MIU eXtension parameter
  * @NFC_ATTR_SE: Available Secure Elements
+ * @NFC_ATTR_FIRMWARE_NAME: Free format firmware version
  */
 enum nfc_attrs {
 	NFC_ATTR_UNSPEC,
@@ -143,6 +147,7 @@ enum nfc_attrs {
 	NFC_ATTR_LLC_PARAM_MIUX,
 	NFC_ATTR_SE,
 	NFC_ATTR_LLC_SDP,
+	NFC_ATTR_FIRMWARE_NAME,
 /* private: internal use only */
 	__NFC_ATTR_AFTER_LAST
 };
@@ -162,6 +167,7 @@ enum nfc_sdp_attr {
 #define NFC_SENSB_RES_MAXSIZE 12
 #define NFC_SENSF_RES_MAXSIZE 18
 #define NFC_GB_MAXSIZE        48
+#define NFC_FIRMWARE_NAME_MAXSIZE 32
 
 /* NFC protocols */
 #define NFC_PROTO_JEWEL		1
diff --git a/net/nfc/core.c b/net/nfc/core.c
index 40d2527..eb3cecf 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -44,6 +44,47 @@ DEFINE_MUTEX(nfc_devlist_mutex);
 /* NFC device ID bitmap */
 static DEFINE_IDA(nfc_index_ida);
 
+int nfc_fw_upload(struct nfc_dev *dev, const char *firmware_name)
+{
+	int rc = 0;
+
+	pr_debug("%s do firmware %s\n", dev_name(&dev->dev), firmware_name);
+
+	device_lock(&dev->dev);
+
+	if (!device_is_registered(&dev->dev)) {
+		rc = -ENODEV;
+		goto error;
+	}
+
+	if (dev->dev_up) {
+		rc = -EBUSY;
+		goto error;
+	}
+
+	if (!dev->ops->fw_upload) {
+		rc = -EOPNOTSUPP;
+		goto error;
+	}
+
+	dev->fw_upload_in_progress = true;
+	rc = dev->ops->fw_upload(dev, firmware_name);
+	if (rc)
+		dev->fw_upload_in_progress = false;
+
+error:
+	device_unlock(&dev->dev);
+	return rc;
+}
+
+int nfc_fw_upload_done(struct nfc_dev *dev, const char *firmware_name)
+{
+	dev->fw_upload_in_progress = false;
+
+	return nfc_genl_fw_upload_done(dev, firmware_name);
+}
+EXPORT_SYMBOL(nfc_fw_upload_done);
+
 /**
  * nfc_dev_up - turn on the NFC device
  *
@@ -69,6 +110,11 @@ int nfc_dev_up(struct nfc_dev *dev)
 		goto error;
 	}
 
+	if (dev->fw_upload_in_progress) {
+		rc = -EBUSY;
+		goto error;
+	}
+
 	if (dev->dev_up) {
 		rc = -EALREADY;
 		goto error;
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index f0c4d61..1deadad 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -56,6 +56,8 @@ static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = {
 	[NFC_ATTR_LLC_PARAM_RW] = { .type = NLA_U8 },
 	[NFC_ATTR_LLC_PARAM_MIUX] = { .type = NLA_U16 },
 	[NFC_ATTR_LLC_SDP] = { .type = NLA_NESTED },
+	[NFC_ATTR_FIRMWARE_NAME] = { .type = NLA_STRING,
+				     .len = NFC_FIRMWARE_NAME_MAXSIZE },
 };
 
 static const struct nla_policy nfc_sdp_genl_policy[NFC_SDP_ATTR_MAX + 1] = {
@@ -1025,6 +1027,62 @@ exit:
 	return rc;
 }
 
+static int nfc_genl_fw_upload(struct sk_buff *skb, struct genl_info *info)
+{
+	struct nfc_dev *dev;
+	int rc;
+	u32 idx;
+	char firmware_name[NFC_FIRMWARE_NAME_MAXSIZE + 1];
+
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX])
+		return -EINVAL;
+
+	idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+
+	dev = nfc_get_device(idx);
+	if (!dev)
+		return -ENODEV;
+
+	nla_strlcpy(firmware_name, info->attrs[NFC_ATTR_FIRMWARE_NAME],
+		    sizeof(firmware_name));
+
+	rc = nfc_fw_upload(dev, firmware_name);
+
+	nfc_put_device(dev);
+	return rc;
+}
+
+int nfc_genl_fw_upload_done(struct nfc_dev *dev, const char *firmware_name)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg)
+		return -ENOMEM;
+
+	hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+			  NFC_CMD_FW_UPLOAD);
+	if (!hdr)
+		goto free_msg;
+
+	if (nla_put_string(msg, NFC_ATTR_FIRMWARE_NAME, firmware_name) ||
+	    nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+		goto nla_put_failure;
+
+	genlmsg_end(msg, hdr);
+
+	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+	return 0;
+
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+free_msg:
+	nlmsg_free(msg);
+	return -EMSGSIZE;
+}
+
 static struct genl_ops nfc_genl_ops[] = {
 	{
 		.cmd = NFC_CMD_GET_DEVICE,
@@ -1084,6 +1142,11 @@ static struct genl_ops nfc_genl_ops[] = {
 		.doit = nfc_genl_llc_sdreq,
 		.policy = nfc_genl_policy,
 	},
+	{
+		.cmd = NFC_CMD_FW_UPLOAD,
+		.doit = nfc_genl_fw_upload,
+		.policy = nfc_genl_policy,
+	},
 };
 
 
diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h
index afa1f84..cf0c481 100644
--- a/net/nfc/nfc.h
+++ b/net/nfc/nfc.h
@@ -120,6 +120,11 @@ static inline void nfc_device_iter_exit(struct class_dev_iter *iter)
 	class_dev_iter_exit(iter);
 }
 
+int nfc_fw_upload(struct nfc_dev *dev, const char *firmware_name);
+int nfc_genl_fw_upload_done(struct nfc_dev *dev, const char *firmware_name);
+
+int nfc_fw_upload_done(struct nfc_dev *dev, const char *firmware_name);
+
 int nfc_dev_up(struct nfc_dev *dev);
 
 int nfc_dev_down(struct nfc_dev *dev);
-- 
cgit v0.10.2


From 9a695d23aab889273821c91b4132f1ed315b251b Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Mon, 29 Apr 2013 17:47:42 +0200
Subject: NFC: HCI: Implement fw_upload ops

This is a simple forward to the HCI driver. When driver is done with the
operation, it shall directly notify NFC Core by calling
nfc_fw_upload_done().

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index b87a169..14faf2d 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -61,6 +61,7 @@ struct nfc_hci_ops {
 			      struct sk_buff *skb);
 	int (*enable_se)(struct nfc_dev *dev, u32 secure_element);
 	int (*disable_se)(struct nfc_dev *dev, u32 secure_element);
+	int (*fw_upload)(struct nfc_hci_dev *hdev, const char *firmware_name);
 };
 
 /* Pipes */
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index 91020b2..b7e4dac 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -779,6 +779,16 @@ static void nfc_hci_recv_from_llc(struct nfc_hci_dev *hdev, struct sk_buff *skb)
 	}
 }
 
+static int hci_fw_upload(struct nfc_dev *nfc_dev, const char *firmware_name)
+{
+	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
+
+	if (hdev->ops->fw_upload)
+		return hdev->ops->fw_upload(hdev, firmware_name);
+
+	return -ENOTSUPP;
+}
+
 static struct nfc_ops hci_nfc_ops = {
 	.dev_up = hci_dev_up,
 	.dev_down = hci_dev_down,
@@ -791,6 +801,7 @@ static struct nfc_ops hci_nfc_ops = {
 	.im_transceive = hci_transceive,
 	.tm_send = hci_tm_send,
 	.check_presence = hci_check_presence,
+	.fw_upload = hci_fw_upload,
 };
 
 struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
-- 
cgit v0.10.2


From a395298c9c96748cbd6acee4cb9a5ba13fbb3ab8 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Sat, 25 May 2013 01:21:21 +0200
Subject: NFC: HCI: Follow a positive code path in the HCI ops implementations

Exiting on the error case is more typical to the kernel coding style.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index b7e4dac..d2ef1e2 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -570,21 +570,21 @@ static int hci_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
 {
 	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
 
-	if (hdev->ops->dep_link_up)
-		return hdev->ops->dep_link_up(hdev, target, comm_mode,
-						gb, gb_len);
+	if (!hdev->ops->dep_link_up)
+		return 0;
 
-	return 0;
+	return hdev->ops->dep_link_up(hdev, target, comm_mode,
+				      gb, gb_len);
 }
 
 static int hci_dep_link_down(struct nfc_dev *nfc_dev)
 {
 	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
 
-	if (hdev->ops->dep_link_down)
-		return hdev->ops->dep_link_down(hdev);
+	if (!hdev->ops->dep_link_down)
+		return 0;
 
-	return 0;
+	return hdev->ops->dep_link_down(hdev);
 }
 
 static int hci_activate_target(struct nfc_dev *nfc_dev,
@@ -673,12 +673,12 @@ static int hci_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
 {
 	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
 
-	if (hdev->ops->tm_send)
-		return hdev->ops->tm_send(hdev, skb);
-
-	kfree_skb(skb);
+	if (!hdev->ops->tm_send) {
+		kfree_skb(skb);
+		return -ENOTSUPP;
+	}
 
-	return -ENOTSUPP;
+	return hdev->ops->tm_send(hdev, skb);
 }
 
 static int hci_check_presence(struct nfc_dev *nfc_dev,
@@ -686,10 +686,10 @@ static int hci_check_presence(struct nfc_dev *nfc_dev,
 {
 	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
 
-	if (hdev->ops->check_presence)
-		return hdev->ops->check_presence(hdev, target);
+	if (!hdev->ops->check_presence)
+		return 0;
 
-	return 0;
+	return hdev->ops->check_presence(hdev, target);
 }
 
 static void nfc_hci_failure(struct nfc_hci_dev *hdev, int err)
@@ -783,10 +783,10 @@ static int hci_fw_upload(struct nfc_dev *nfc_dev, const char *firmware_name)
 {
 	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
 
-	if (hdev->ops->fw_upload)
-		return hdev->ops->fw_upload(hdev, firmware_name);
+	if (!hdev->ops->fw_upload)
+		return -ENOTSUPP;
 
-	return -ENOTSUPP;
+	return hdev->ops->fw_upload(hdev, firmware_name);
 }
 
 static struct nfc_ops hci_nfc_ops = {
-- 
cgit v0.10.2


From 5f121b9a83b499a61ed44e5ba619c7de8f7271ad Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Thu, 13 Jun 2013 15:29:38 -0400
Subject: net-rps: fixes for rps flow limit

Caught by sparse:
- __rcu: missing annotation to sd->flow_limit
- __user: direct access in cpumask_scnprintf

Also
- add endline character when printing bitmap if room in buffer
- avoid bucket overflow by reducing FLOW_LIMIT_HISTORY

The last item warrants some explanation. The hashtable buckets are
subject to overflow if FLOW_LIMIT_HISTORY is larger than or equal
to bucket size, since all packets may end up in a single bucket. The
current (rather arbitrary) history value of 256 happens to match the
buffer size (u8).

As a result, with a single flow, the first 128 packets are accepted
(correct), the second 128 packets dropped (correct) and then the
history[] array has filled, so that each subsequent new packet
causes an increment in the bucket for new_flow plus a decrement
for old_flow: a steady state.

This is fine if packets are dropped, as the steady state goes away
as soon as a mix of traffic reappears. But, because the 256th packet
overflowed the bucket to 0: no packets are dropped.

Instead of explicitly adding an overflow check, this patch changes
FLOW_LIMIT_HISTORY to never be able to overflow a single bucket.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
(first item)

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e5d6557..8c9fcc4 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1840,7 +1840,7 @@ static inline int unregister_gifconf(unsigned int family)
 }
 
 #ifdef CONFIG_NET_FLOW_LIMIT
-#define FLOW_LIMIT_HISTORY	(1 << 8)	/* must be ^2 */
+#define FLOW_LIMIT_HISTORY	(1 << 7)  /* must be ^2 and !overflow buckets */
 struct sd_flow_limit {
 	u64			count;
 	unsigned int		num_buckets;
@@ -1883,7 +1883,7 @@ struct softnet_data {
 	struct napi_struct	backlog;
 
 #ifdef CONFIG_NET_FLOW_LIMIT
-	struct sd_flow_limit	*flow_limit;
+	struct sd_flow_limit __rcu *flow_limit;
 #endif
 };
 
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 637a42e..78c746e 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -132,6 +132,8 @@ static int flow_limit_cpu_sysctl(struct ctl_table *table, int write,
 write_unlock:
 		mutex_unlock(&flow_limit_update_mutex);
 	} else {
+		char kbuf[128];
+
 		if (*ppos || !*lenp) {
 			*lenp = 0;
 			goto done;
@@ -146,9 +148,20 @@ write_unlock:
 		}
 		rcu_read_unlock();
 
-		len = cpumask_scnprintf(buffer, *lenp, mask);
-		*lenp = len + 1;
-		*ppos += len + 1;
+		len = min(sizeof(kbuf) - 1, *lenp);
+		len = cpumask_scnprintf(kbuf, len, mask);
+		if (!len) {
+			*lenp = 0;
+			goto done;
+		}
+		if (len < *lenp)
+			kbuf[len++] = '\n';
+		if (copy_to_user(buffer, kbuf, len)) {
+			ret = -EFAULT;
+			goto done;
+		}
+		*lenp = len;
+		*ppos += len;
 	}
 
 done:
-- 
cgit v0.10.2


From ca4ec90b31d1ecf01087c607933cf792057bc8bf Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 13 Jun 2013 07:58:30 -0700
Subject: htb: reorder struct htb_class fields for performance

htb_class structures are big, and source of false sharing on SMP.

By carefully splitting them in two parts, we can improve performance.

I got 9 % performance increase on a 24 threads machine, with 200
concurrent netperf in TCP_RR mode, using a HTB hierarchy of 4 classes.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 1a3655a..7954e73 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -76,23 +76,39 @@ enum htb_cmode {
 	HTB_CAN_SEND		/* class can send */
 };
 
-/* interior & leaf nodes; props specific to leaves are marked L: */
+/* interior & leaf nodes; props specific to leaves are marked L:
+ * To reduce false sharing, place mostly read fields at beginning,
+ * and mostly written ones at the end.
+ */
 struct htb_class {
 	struct Qdisc_class_common common;
-	/* general class parameters */
-	struct gnet_stats_basic_packed bstats;
-	struct gnet_stats_queue qstats;
+	struct psched_ratecfg	rate;
+	struct psched_ratecfg	ceil;
+	s64			buffer, cbuffer;/* token bucket depth/rate */
+	s64			mbuffer;	/* max wait time */
+	int			prio;		/* these two are used only by leaves... */
+	int			quantum;	/* but stored for parent-to-leaf return */
+
+	struct tcf_proto	*filter_list;	/* class attached filters */
+	int			filter_cnt;
+	int			refcnt;		/* usage count of this class */
+
+	int			level;		/* our level (see above) */
+	unsigned int		children;
+	struct htb_class	*parent;	/* parent class */
+
 	struct gnet_stats_rate_est64 rate_est;
-	struct tc_htb_xstats xstats;	/* our special stats */
-	int refcnt;		/* usage count of this class */
 
-	/* topology */
-	int level;		/* our level (see above) */
-	unsigned int children;
-	struct htb_class *parent;	/* parent class */
+	/*
+	 * Written often fields
+	 */
+	struct gnet_stats_basic_packed bstats;
+	struct gnet_stats_queue	qstats;
+	struct tc_htb_xstats	xstats;	/* our special stats */
 
-	int prio;		/* these two are used only by leaves... */
-	int quantum;		/* but stored for parent-to-leaf return */
+	/* token bucket parameters */
+	s64			tokens, ctokens;/* current number of tokens */
+	s64			t_c;		/* checkpoint time */
 
 	union {
 		struct htb_class_leaf {
@@ -111,24 +127,12 @@ struct htb_class {
 			u32 last_ptr_id[TC_HTB_NUMPRIO];
 		} inner;
 	} un;
-	struct rb_node node[TC_HTB_NUMPRIO];	/* node for self or feed tree */
-	struct rb_node pq_node;	/* node for event queue */
-	s64	pq_key;
-
-	int prio_activity;	/* for which prios are we active */
-	enum htb_cmode cmode;	/* current mode of the class */
+	s64			pq_key;
 
-	/* class attached filters */
-	struct tcf_proto *filter_list;
-	int filter_cnt;
-
-	/* token bucket parameters */
-	struct psched_ratecfg rate;
-	struct psched_ratecfg ceil;
-	s64	buffer, cbuffer;	/* token bucket depth/rate */
-	s64	mbuffer;		/* max wait time */
-	s64	tokens, ctokens;	/* current number of tokens */
-	s64	t_c;			/* checkpoint time */
+	int			prio_activity;	/* for which prios are we active */
+	enum htb_cmode		cmode;		/* current mode of the class */
+	struct rb_node		pq_node;	/* node for event queue */
+	struct rb_node		node[TC_HTB_NUMPRIO];	/* node for self or feed tree */
 };
 
 struct htb_sched {
-- 
cgit v0.10.2


From 3dc6475c0c9e55ac7f053ad6b8b398e779954545 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <florian@openwrt.org>
Date: Wed, 12 Jun 2013 20:53:05 +0100
Subject: bcm63xx_enet: add support Broadcom BCM6345 Ethernet

This patch adds support for the Broadcom BCM6345 SoC Ethernet. BCM6345
has a slightly different and older DMA engine which requires the
following modifications:

- the width of the DMA channels on BCM6345 is 64 bytes vs 16 bytes,
  which means that the helpers enet_dma{c,s} need to account for this
  channel width and we can no longer use macros

- BCM6345 DMA engine does not have any internal SRAM for transfering
  buffers

- BCM6345 buffer allocation and flow control is not per-channel but
  global (done in RSET_ENETDMA)

- the DMA engine bits are right-shifted by 3 compared to other DMA
  generations

- the DMA enable/interrupt masks are a little different (we need to
  enabled more bits for 6345)

- some register have the same meaning but are offsetted in the ENET_DMAC
  space so a lookup table is required to return the proper offset

The MAC itself is identical and requires no modifications to work.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/mips/bcm63xx/dev-enet.c b/arch/mips/bcm63xx/dev-enet.c
index 6cbaee0..52bc01d 100644
--- a/arch/mips/bcm63xx/dev-enet.c
+++ b/arch/mips/bcm63xx/dev-enet.c
@@ -9,10 +9,44 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
+#include <linux/export.h>
 #include <bcm63xx_dev_enet.h>
 #include <bcm63xx_io.h>
 #include <bcm63xx_regs.h>
 
+#ifdef BCMCPU_RUNTIME_DETECT
+static const unsigned long bcm6348_regs_enetdmac[] = {
+	[ENETDMAC_CHANCFG]	= ENETDMAC_CHANCFG_REG,
+	[ENETDMAC_IR]		= ENETDMAC_IR_REG,
+	[ENETDMAC_IRMASK]	= ENETDMAC_IRMASK_REG,
+	[ENETDMAC_MAXBURST]	= ENETDMAC_MAXBURST_REG,
+};
+
+static const unsigned long bcm6345_regs_enetdmac[] = {
+	[ENETDMAC_CHANCFG]	= ENETDMA_6345_CHANCFG_REG,
+	[ENETDMAC_IR]		= ENETDMA_6345_IR_REG,
+	[ENETDMAC_IRMASK]	= ENETDMA_6345_IRMASK_REG,
+	[ENETDMAC_MAXBURST]	= ENETDMA_6345_MAXBURST_REG,
+	[ENETDMAC_BUFALLOC]	= ENETDMA_6345_BUFALLOC_REG,
+	[ENETDMAC_RSTART]	= ENETDMA_6345_RSTART_REG,
+	[ENETDMAC_FC]		= ENETDMA_6345_FC_REG,
+	[ENETDMAC_LEN]		= ENETDMA_6345_LEN_REG,
+};
+
+const unsigned long *bcm63xx_regs_enetdmac;
+EXPORT_SYMBOL(bcm63xx_regs_enetdmac);
+
+static __init void bcm63xx_enetdmac_regs_init(void)
+{
+	if (BCMCPU_IS_6345())
+		bcm63xx_regs_enetdmac = bcm6345_regs_enetdmac;
+	else
+		bcm63xx_regs_enetdmac = bcm6348_regs_enetdmac;
+}
+#else
+static __init void bcm63xx_enetdmac_regs_init(void) { }
+#endif
+
 static struct resource shared_res[] = {
 	{
 		.start		= -1, /* filled at runtime */
@@ -137,12 +171,19 @@ static int __init register_shared(void)
 	if (shared_device_registered)
 		return 0;
 
+	bcm63xx_enetdmac_regs_init();
+
 	shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
 	shared_res[0].end = shared_res[0].start;
-	shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
+	if (BCMCPU_IS_6345())
+		shared_res[0].end += (RSET_6345_ENETDMA_SIZE) - 1;
+	else
+		shared_res[0].end += (RSET_ENETDMA_SIZE)  - 1;
 
 	if (BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_6368())
 		chan_count = 32;
+	else if (BCMCPU_IS_6345())
+		chan_count = 8;
 	else
 		chan_count = 16;
 
@@ -172,7 +213,7 @@ int __init bcm63xx_enet_register(int unit,
 	if (unit > 1)
 		return -ENODEV;
 
-	if (unit == 1 && BCMCPU_IS_6338())
+	if (unit == 1 && (BCMCPU_IS_6338() || BCMCPU_IS_6345()))
 		return -ENODEV;
 
 	ret = register_shared();
@@ -213,6 +254,21 @@ int __init bcm63xx_enet_register(int unit,
 		dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY);
 	}
 
+	dpd->dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK;
+	dpd->dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK;
+	if (BCMCPU_IS_6345()) {
+		dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_CHAINING_MASK;
+		dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_WRAP_EN_MASK;
+		dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_FLOWC_EN_MASK;
+		dpd->dma_chan_int_mask |= ENETDMA_IR_BUFDONE_MASK;
+		dpd->dma_chan_int_mask |= ENETDMA_IR_NOTOWNER_MASK;
+		dpd->dma_chan_width = ENETDMA_6345_CHAN_WIDTH;
+		dpd->dma_desc_shift = ENETDMA_6345_DESC_SHIFT;
+	} else {
+		dpd->dma_has_sram = true;
+		dpd->dma_chan_width = ENETDMA_CHAN_WIDTH;
+	}
+
 	ret = platform_device_register(pdev);
 	if (ret)
 		return ret;
@@ -246,6 +302,11 @@ bcm63xx_enetsw_register(const struct bcm63xx_enetsw_platform_data *pd)
 	else if (BCMCPU_IS_6362() || BCMCPU_IS_6368())
 		enetsw_pd.num_ports = ENETSW_PORTS_6368;
 
+	enetsw_pd.dma_has_sram = true;
+	enetsw_pd.dma_chan_width = ENETDMA_CHAN_WIDTH;
+	enetsw_pd.dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK;
+	enetsw_pd.dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK;
+
 	ret = platform_device_register(&bcm63xx_enetsw_device);
 	if (ret)
 		return ret;
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
index 9981f4f..e6e65dc 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
@@ -174,6 +174,7 @@ enum bcm63xx_regs_set {
 #define BCM_6368_RSET_SPI_SIZE		1804
 #define RSET_ENET_SIZE			2048
 #define RSET_ENETDMA_SIZE		256
+#define RSET_6345_ENETDMA_SIZE		64
 #define RSET_ENETDMAC_SIZE(chans)	(16 * (chans))
 #define RSET_ENETDMAS_SIZE(chans)	(16 * (chans))
 #define RSET_ENETSW_SIZE		65536
@@ -300,7 +301,7 @@ enum bcm63xx_regs_set {
 #define BCM_6345_USBDMA_BASE		(0xfffe2800)
 #define BCM_6345_ENET0_BASE		(0xfffe1800)
 #define BCM_6345_ENETDMA_BASE		(0xfffe2800)
-#define BCM_6345_ENETDMAC_BASE		(0xfffe2900)
+#define BCM_6345_ENETDMAC_BASE		(0xfffe2840)
 #define BCM_6345_ENETDMAS_BASE		(0xfffe2a00)
 #define BCM_6345_ENETSW_BASE		(0xdeadbeef)
 #define BCM_6345_PCMCIA_BASE		(0xfffe2028)
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
index 118e3c9..753953e 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
@@ -4,6 +4,8 @@
 #include <linux/if_ether.h>
 #include <linux/init.h>
 
+#include <bcm63xx_regs.h>
+
 /*
  * on board ethernet platform data
  */
@@ -37,6 +39,21 @@ struct bcm63xx_enet_platform_data {
 					  int phy_id, int reg),
 			  void (*mii_write)(struct net_device *dev,
 					    int phy_id, int reg, int val));
+
+	/* DMA channel enable mask */
+	u32 dma_chan_en_mask;
+
+	/* DMA channel interrupt mask */
+	u32 dma_chan_int_mask;
+
+	/* DMA engine has internal SRAM */
+	bool dma_has_sram;
+
+	/* DMA channel register width */
+	unsigned int dma_chan_width;
+
+	/* DMA descriptor shift */
+	unsigned int dma_desc_shift;
 };
 
 /*
@@ -63,6 +80,18 @@ struct bcm63xx_enetsw_platform_data {
 	char mac_addr[ETH_ALEN];
 	int num_ports;
 	struct bcm63xx_enetsw_port used_ports[ENETSW_MAX_PORT];
+
+	/* DMA channel enable mask */
+	u32 dma_chan_en_mask;
+
+	/* DMA channel interrupt mask */
+	u32 dma_chan_int_mask;
+
+	/* DMA channel register width */
+	unsigned int dma_chan_width;
+
+	/* DMA engine has internal SRAM */
+	bool dma_has_sram;
 };
 
 int __init bcm63xx_enet_register(int unit,
@@ -70,4 +99,69 @@ int __init bcm63xx_enet_register(int unit,
 
 int bcm63xx_enetsw_register(const struct bcm63xx_enetsw_platform_data *pd);
 
+enum bcm63xx_regs_enetdmac {
+	ENETDMAC_CHANCFG,
+	ENETDMAC_IR,
+	ENETDMAC_IRMASK,
+	ENETDMAC_MAXBURST,
+	ENETDMAC_BUFALLOC,
+	ENETDMAC_RSTART,
+	ENETDMAC_FC,
+	ENETDMAC_LEN,
+};
+
+static inline unsigned long bcm63xx_enetdmacreg(enum bcm63xx_regs_enetdmac reg)
+{
+#ifdef BCMCPU_RUNTIME_DETECT
+	extern const unsigned long *bcm63xx_regs_enetdmac;
+
+	return bcm63xx_regs_enetdmac[reg];
+#else
+#ifdef CONFIG_BCM63XX_CPU_6345
+	switch (reg) {
+	case ENETDMAC_CHANCFG:
+		return ENETDMA_6345_CHANCFG_REG;
+	case ENETDMAC_IR:
+		return ENETDMA_6345_IR_REG;
+	case ENETDMAC_IRMASK:
+		return ENETDMA_6345_IRMASK_REG;
+	case ENETDMAC_MAXBURST:
+		return ENETDMA_6345_MAXBURST_REG;
+	case ENETDMAC_BUFALLOC:
+		return ENETDMA_6345_BUFALLOC_REG;
+	case ENETDMAC_RSTART:
+		return ENETDMA_6345_RSTART_REG;
+	case ENETDMAC_FC:
+		return ENETDMA_6345_FC_REG;
+	case ENETDMAC_LEN:
+		return ENETDMA_6345_LEN_REG;
+	}
+#endif
+#if defined(CONFIG_BCM63XX_CPU_6328) || \
+	defined(CONFIG_BCM63XX_CPU_6338) || \
+	defined(CONFIG_BCM63XX_CPU_6348) || \
+	defined(CONFIG_BCM63XX_CPU_6358) || \
+	defined(CONFIG_BCM63XX_CPU_6362) || \
+	defined(CONFIG_BCM63XX_CPU_6368)
+	switch (reg) {
+	case ENETDMAC_CHANCFG:
+		return ENETDMAC_CHANCFG_REG;
+	case ENETDMAC_IR:
+		return ENETDMAC_IR_REG;
+	case ENETDMAC_IRMASK:
+		return ENETDMAC_IRMASK_REG;
+	case ENETDMAC_MAXBURST:
+		return ENETDMAC_MAXBURST_REG;
+	case ENETDMAC_BUFALLOC:
+	case ENETDMAC_RSTART:
+	case ENETDMAC_FC:
+	case ENETDMAC_LEN:
+		return 0;
+	}
+#endif
+#endif
+	return 0;
+}
+
+
 #endif /* ! BCM63XX_DEV_ENET_H_ */
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 0a2121a..eff7ca7 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -727,6 +727,8 @@
 /*************************************************************************
  * _REG relative to RSET_ENETDMA
  *************************************************************************/
+#define ENETDMA_CHAN_WIDTH		0x10
+#define ENETDMA_6345_CHAN_WIDTH		0x40
 
 /* Controller Configuration Register */
 #define ENETDMA_CFG_REG			(0x0)
@@ -782,31 +784,56 @@
 /* State Ram Word 4 */
 #define ENETDMA_SRAM4_REG(x)		(0x20c + (x) * 0x10)
 
+/* Broadcom 6345 ENET DMA definitions */
+#define ENETDMA_6345_CHANCFG_REG	(0x00)
+
+#define ENETDMA_6345_MAXBURST_REG	(0x40)
+
+#define ENETDMA_6345_RSTART_REG		(0x08)
+
+#define ENETDMA_6345_LEN_REG		(0x0C)
+
+#define ENETDMA_6345_IR_REG		(0x14)
+
+#define ENETDMA_6345_IRMASK_REG		(0x18)
+
+#define ENETDMA_6345_FC_REG		(0x1C)
+
+#define ENETDMA_6345_BUFALLOC_REG	(0x20)
+
+/* Shift down for EOP, SOP and WRAP bits */
+#define ENETDMA_6345_DESC_SHIFT		(3)
 
 /*************************************************************************
  * _REG relative to RSET_ENETDMAC
  *************************************************************************/
 
 /* Channel Configuration register */
-#define ENETDMAC_CHANCFG_REG(x)		((x) * 0x10)
+#define ENETDMAC_CHANCFG_REG		(0x0)
 #define ENETDMAC_CHANCFG_EN_SHIFT	0
 #define ENETDMAC_CHANCFG_EN_MASK	(1 << ENETDMAC_CHANCFG_EN_SHIFT)
 #define ENETDMAC_CHANCFG_PKTHALT_SHIFT	1
 #define ENETDMAC_CHANCFG_PKTHALT_MASK	(1 << ENETDMAC_CHANCFG_PKTHALT_SHIFT)
 #define ENETDMAC_CHANCFG_BUFHALT_SHIFT	2
 #define ENETDMAC_CHANCFG_BUFHALT_MASK	(1 << ENETDMAC_CHANCFG_BUFHALT_SHIFT)
+#define ENETDMAC_CHANCFG_CHAINING_SHIFT	2
+#define ENETDMAC_CHANCFG_CHAINING_MASK	(1 << ENETDMAC_CHANCFG_CHAINING_SHIFT)
+#define ENETDMAC_CHANCFG_WRAP_EN_SHIFT	3
+#define ENETDMAC_CHANCFG_WRAP_EN_MASK	(1 << ENETDMAC_CHANCFG_WRAP_EN_SHIFT)
+#define ENETDMAC_CHANCFG_FLOWC_EN_SHIFT	4
+#define ENETDMAC_CHANCFG_FLOWC_EN_MASK	(1 << ENETDMAC_CHANCFG_FLOWC_EN_SHIFT)
 
 /* Interrupt Control/Status register */
-#define ENETDMAC_IR_REG(x)		(0x4 + (x) * 0x10)
+#define ENETDMAC_IR_REG			(0x4)
 #define ENETDMAC_IR_BUFDONE_MASK	(1 << 0)
 #define ENETDMAC_IR_PKTDONE_MASK	(1 << 1)
 #define ENETDMAC_IR_NOTOWNER_MASK	(1 << 2)
 
 /* Interrupt Mask register */
-#define ENETDMAC_IRMASK_REG(x)		(0x8 + (x) * 0x10)
+#define ENETDMAC_IRMASK_REG		(0x8)
 
 /* Maximum Burst Length */
-#define ENETDMAC_MAXBURST_REG(x)	(0xc + (x) * 0x10)
+#define ENETDMAC_MAXBURST_REG		(0xc)
 
 
 /*************************************************************************
@@ -814,16 +841,16 @@
  *************************************************************************/
 
 /* Ring Start Address register */
-#define ENETDMAS_RSTART_REG(x)		((x) * 0x10)
+#define ENETDMAS_RSTART_REG		(0x0)
 
 /* State Ram Word 2 */
-#define ENETDMAS_SRAM2_REG(x)		(0x4 + (x) * 0x10)
+#define ENETDMAS_SRAM2_REG		(0x4)
 
 /* State Ram Word 3 */
-#define ENETDMAS_SRAM3_REG(x)		(0x8 + (x) * 0x10)
+#define ENETDMAS_SRAM3_REG		(0x8)
 
 /* State Ram Word 4 */
-#define ENETDMAS_SRAM4_REG(x)		(0xc + (x) * 0x10)
+#define ENETDMAS_SRAM4_REG		(0xc)
 
 
 /*************************************************************************
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index fbbfc4a..8f1ac02 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -107,26 +107,28 @@ static inline void enet_dma_writel(struct bcm_enet_priv *priv,
 	bcm_writel(val, bcm_enet_shared_base[0] + off);
 }
 
-static inline u32 enet_dmac_readl(struct bcm_enet_priv *priv, u32 off)
+static inline u32 enet_dmac_readl(struct bcm_enet_priv *priv, u32 off, int chan)
 {
-	return bcm_readl(bcm_enet_shared_base[1] + off);
+	return bcm_readl(bcm_enet_shared_base[1] +
+		bcm63xx_enetdmacreg(off) + chan * priv->dma_chan_width);
 }
 
 static inline void enet_dmac_writel(struct bcm_enet_priv *priv,
-				       u32 val, u32 off)
+				       u32 val, u32 off, int chan)
 {
-	bcm_writel(val, bcm_enet_shared_base[1] + off);
+	bcm_writel(val, bcm_enet_shared_base[1] +
+		bcm63xx_enetdmacreg(off) + chan * priv->dma_chan_width);
 }
 
-static inline u32 enet_dmas_readl(struct bcm_enet_priv *priv, u32 off)
+static inline u32 enet_dmas_readl(struct bcm_enet_priv *priv, u32 off, int chan)
 {
-	return bcm_readl(bcm_enet_shared_base[2] + off);
+	return bcm_readl(bcm_enet_shared_base[2] + off + chan * priv->dma_chan_width);
 }
 
 static inline void enet_dmas_writel(struct bcm_enet_priv *priv,
-				       u32 val, u32 off)
+				       u32 val, u32 off, int chan)
 {
-	bcm_writel(val, bcm_enet_shared_base[2] + off);
+	bcm_writel(val, bcm_enet_shared_base[2] + off + chan * priv->dma_chan_width);
 }
 
 /*
@@ -262,7 +264,7 @@ static int bcm_enet_refill_rx(struct net_device *dev)
 		len_stat = priv->rx_skb_size << DMADESC_LENGTH_SHIFT;
 		len_stat |= DMADESC_OWNER_MASK;
 		if (priv->rx_dirty_desc == priv->rx_ring_size - 1) {
-			len_stat |= DMADESC_WRAP_MASK;
+			len_stat |= (DMADESC_WRAP_MASK >> priv->dma_desc_shift);
 			priv->rx_dirty_desc = 0;
 		} else {
 			priv->rx_dirty_desc++;
@@ -273,7 +275,10 @@ static int bcm_enet_refill_rx(struct net_device *dev)
 		priv->rx_desc_count++;
 
 		/* tell dma engine we allocated one buffer */
-		enet_dma_writel(priv, 1, ENETDMA_BUFALLOC_REG(priv->rx_chan));
+		if (priv->dma_has_sram)
+			enet_dma_writel(priv, 1, ENETDMA_BUFALLOC_REG(priv->rx_chan));
+		else
+			enet_dmac_writel(priv, 1, ENETDMAC_BUFALLOC, priv->rx_chan);
 	}
 
 	/* If rx ring is still empty, set a timer to try allocating
@@ -349,7 +354,8 @@ static int bcm_enet_receive_queue(struct net_device *dev, int budget)
 
 		/* if the packet does not have start of packet _and_
 		 * end of packet flag set, then just recycle it */
-		if ((len_stat & DMADESC_ESOP_MASK) != DMADESC_ESOP_MASK) {
+		if ((len_stat & (DMADESC_ESOP_MASK >> priv->dma_desc_shift)) !=
+			(DMADESC_ESOP_MASK >> priv->dma_desc_shift)) {
 			dev->stats.rx_dropped++;
 			continue;
 		}
@@ -410,8 +416,8 @@ static int bcm_enet_receive_queue(struct net_device *dev, int budget)
 		bcm_enet_refill_rx(dev);
 
 		/* kick rx dma */
-		enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
-				 ENETDMAC_CHANCFG_REG(priv->rx_chan));
+		enet_dmac_writel(priv, priv->dma_chan_en_mask,
+					 ENETDMAC_CHANCFG, priv->rx_chan);
 	}
 
 	return processed;
@@ -486,10 +492,10 @@ static int bcm_enet_poll(struct napi_struct *napi, int budget)
 	dev = priv->net_dev;
 
 	/* ack interrupts */
-	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IR_REG(priv->rx_chan));
-	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IR_REG(priv->tx_chan));
+	enet_dmac_writel(priv, priv->dma_chan_int_mask,
+			 ENETDMAC_IR, priv->rx_chan);
+	enet_dmac_writel(priv, priv->dma_chan_int_mask,
+			 ENETDMAC_IR, priv->tx_chan);
 
 	/* reclaim sent skb */
 	tx_work_done = bcm_enet_tx_reclaim(dev, 0);
@@ -508,10 +514,10 @@ static int bcm_enet_poll(struct napi_struct *napi, int budget)
 	napi_complete(napi);
 
 	/* restore rx/tx interrupt */
-	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IRMASK_REG(priv->rx_chan));
-	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, priv->dma_chan_int_mask,
+			 ENETDMAC_IRMASK, priv->rx_chan);
+	enet_dmac_writel(priv, priv->dma_chan_int_mask,
+			 ENETDMAC_IRMASK, priv->tx_chan);
 
 	return rx_work_done;
 }
@@ -554,8 +560,8 @@ static irqreturn_t bcm_enet_isr_dma(int irq, void *dev_id)
 	priv = netdev_priv(dev);
 
 	/* mask rx/tx interrupts */
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan);
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan);
 
 	napi_schedule(&priv->napi);
 
@@ -616,14 +622,14 @@ static int bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 				       DMA_TO_DEVICE);
 
 	len_stat = (skb->len << DMADESC_LENGTH_SHIFT) & DMADESC_LENGTH_MASK;
-	len_stat |= DMADESC_ESOP_MASK |
+	len_stat |= (DMADESC_ESOP_MASK >> priv->dma_desc_shift) |
 		DMADESC_APPEND_CRC |
 		DMADESC_OWNER_MASK;
 
 	priv->tx_curr_desc++;
 	if (priv->tx_curr_desc == priv->tx_ring_size) {
 		priv->tx_curr_desc = 0;
-		len_stat |= DMADESC_WRAP_MASK;
+		len_stat |= (DMADESC_WRAP_MASK >> priv->dma_desc_shift);
 	}
 	priv->tx_desc_count--;
 
@@ -634,8 +640,8 @@ static int bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	wmb();
 
 	/* kick tx dma */
-	enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
-			 ENETDMAC_CHANCFG_REG(priv->tx_chan));
+	enet_dmac_writel(priv, priv->dma_chan_en_mask,
+				 ENETDMAC_CHANCFG, priv->tx_chan);
 
 	/* stop queue if no more desc available */
 	if (!priv->tx_desc_count)
@@ -763,6 +769,9 @@ static void bcm_enet_set_flow(struct bcm_enet_priv *priv, int rx_en, int tx_en)
 		val &= ~ENET_RXCFG_ENFLOW_MASK;
 	enet_writel(priv, val, ENET_RXCFG_REG);
 
+	if (!priv->dma_has_sram)
+		return;
+
 	/* tx flow control (pause frame generation) */
 	val = enet_dma_readl(priv, ENETDMA_CFG_REG);
 	if (tx_en)
@@ -910,8 +919,8 @@ static int bcm_enet_open(struct net_device *dev)
 
 	/* mask all interrupts and request them */
 	enet_writel(priv, 0, ENET_IRMASK_REG);
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan);
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan);
 
 	ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev);
 	if (ret)
@@ -986,8 +995,12 @@ static int bcm_enet_open(struct net_device *dev)
 	priv->rx_curr_desc = 0;
 
 	/* initialize flow control buffer allocation */
-	enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
-			ENETDMA_BUFALLOC_REG(priv->rx_chan));
+	if (priv->dma_has_sram)
+		enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
+				ENETDMA_BUFALLOC_REG(priv->rx_chan));
+	else
+		enet_dmac_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
+				ENETDMAC_BUFALLOC, priv->rx_chan);
 
 	if (bcm_enet_refill_rx(dev)) {
 		dev_err(kdev, "cannot allocate rx skb queue\n");
@@ -996,18 +1009,30 @@ static int bcm_enet_open(struct net_device *dev)
 	}
 
 	/* write rx & tx ring addresses */
-	enet_dmas_writel(priv, priv->rx_desc_dma,
-			 ENETDMAS_RSTART_REG(priv->rx_chan));
-	enet_dmas_writel(priv, priv->tx_desc_dma,
-			 ENETDMAS_RSTART_REG(priv->tx_chan));
+	if (priv->dma_has_sram) {
+		enet_dmas_writel(priv, priv->rx_desc_dma,
+				 ENETDMAS_RSTART_REG, priv->rx_chan);
+		enet_dmas_writel(priv, priv->tx_desc_dma,
+			 ENETDMAS_RSTART_REG, priv->tx_chan);
+	} else {
+		enet_dmac_writel(priv, priv->rx_desc_dma,
+				ENETDMAC_RSTART, priv->rx_chan);
+		enet_dmac_writel(priv, priv->tx_desc_dma,
+				ENETDMAC_RSTART, priv->tx_chan);
+	}
 
 	/* clear remaining state ram for rx & tx channel */
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->rx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->tx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->rx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->tx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->rx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->tx_chan));
+	if (priv->dma_has_sram) {
+		enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG, priv->rx_chan);
+		enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG, priv->tx_chan);
+		enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG, priv->rx_chan);
+		enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG, priv->tx_chan);
+		enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG, priv->rx_chan);
+		enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG, priv->tx_chan);
+	} else {
+		enet_dmac_writel(priv, 0, ENETDMAC_FC, priv->rx_chan);
+		enet_dmac_writel(priv, 0, ENETDMAC_FC, priv->tx_chan);
+	}
 
 	/* set max rx/tx length */
 	enet_writel(priv, priv->hw_mtu, ENET_RXMAXLEN_REG);
@@ -1015,18 +1040,24 @@ static int bcm_enet_open(struct net_device *dev)
 
 	/* set dma maximum burst len */
 	enet_dmac_writel(priv, priv->dma_maxburst,
-			 ENETDMAC_MAXBURST_REG(priv->rx_chan));
+			 ENETDMAC_MAXBURST, priv->rx_chan);
 	enet_dmac_writel(priv, priv->dma_maxburst,
-			 ENETDMAC_MAXBURST_REG(priv->tx_chan));
+			 ENETDMAC_MAXBURST, priv->tx_chan);
 
 	/* set correct transmit fifo watermark */
 	enet_writel(priv, BCMENET_TX_FIFO_TRESH, ENET_TXWMARK_REG);
 
 	/* set flow control low/high threshold to 1/3 / 2/3 */
-	val = priv->rx_ring_size / 3;
-	enet_dma_writel(priv, val, ENETDMA_FLOWCL_REG(priv->rx_chan));
-	val = (priv->rx_ring_size * 2) / 3;
-	enet_dma_writel(priv, val, ENETDMA_FLOWCH_REG(priv->rx_chan));
+	if (priv->dma_has_sram) {
+		val = priv->rx_ring_size / 3;
+		enet_dma_writel(priv, val, ENETDMA_FLOWCL_REG(priv->rx_chan));
+		val = (priv->rx_ring_size * 2) / 3;
+		enet_dma_writel(priv, val, ENETDMA_FLOWCH_REG(priv->rx_chan));
+	} else {
+		enet_dmac_writel(priv, 5, ENETDMAC_FC, priv->rx_chan);
+		enet_dmac_writel(priv, priv->rx_ring_size, ENETDMAC_LEN, priv->rx_chan);
+		enet_dmac_writel(priv, priv->tx_ring_size, ENETDMAC_LEN, priv->tx_chan);
+	}
 
 	/* all set, enable mac and interrupts, start dma engine and
 	 * kick rx dma channel */
@@ -1035,26 +1066,26 @@ static int bcm_enet_open(struct net_device *dev)
 	val |= ENET_CTL_ENABLE_MASK;
 	enet_writel(priv, val, ENET_CTL_REG);
 	enet_dma_writel(priv, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG);
-	enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
-			 ENETDMAC_CHANCFG_REG(priv->rx_chan));
+	enet_dmac_writel(priv, priv->dma_chan_en_mask,
+			 ENETDMAC_CHANCFG, priv->rx_chan);
 
 	/* watch "mib counters about to overflow" interrupt */
 	enet_writel(priv, ENET_IR_MIB, ENET_IR_REG);
 	enet_writel(priv, ENET_IR_MIB, ENET_IRMASK_REG);
 
 	/* watch "packet transferred" interrupt in rx and tx */
-	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IR_REG(priv->rx_chan));
-	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IR_REG(priv->tx_chan));
+	enet_dmac_writel(priv, priv->dma_chan_int_mask,
+			 ENETDMAC_IR, priv->rx_chan);
+	enet_dmac_writel(priv, priv->dma_chan_int_mask,
+			 ENETDMAC_IR, priv->tx_chan);
 
 	/* make sure we enable napi before rx interrupt  */
 	napi_enable(&priv->napi);
 
-	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IRMASK_REG(priv->rx_chan));
-	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, priv->dma_chan_int_mask,
+			 ENETDMAC_IRMASK, priv->rx_chan);
+	enet_dmac_writel(priv, priv->dma_chan_int_mask,
+			 ENETDMAC_IRMASK, priv->tx_chan);
 
 	if (priv->has_phy)
 		phy_start(priv->phydev);
@@ -1134,13 +1165,13 @@ static void bcm_enet_disable_dma(struct bcm_enet_priv *priv, int chan)
 {
 	int limit;
 
-	enet_dmac_writel(priv, 0, ENETDMAC_CHANCFG_REG(chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_CHANCFG, chan);
 
 	limit = 1000;
 	do {
 		u32 val;
 
-		val = enet_dmac_readl(priv, ENETDMAC_CHANCFG_REG(chan));
+		val = enet_dmac_readl(priv, ENETDMAC_CHANCFG, chan);
 		if (!(val & ENETDMAC_CHANCFG_EN_MASK))
 			break;
 		udelay(1);
@@ -1167,8 +1198,8 @@ static int bcm_enet_stop(struct net_device *dev)
 
 	/* mask all interrupts */
 	enet_writel(priv, 0, ENET_IRMASK_REG);
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan);
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan);
 
 	/* make sure no mib update is scheduled */
 	cancel_work_sync(&priv->mib_update_task);
@@ -1782,6 +1813,11 @@ static int bcm_enet_probe(struct platform_device *pdev)
 		priv->pause_tx = pd->pause_tx;
 		priv->force_duplex_full = pd->force_duplex_full;
 		priv->force_speed_100 = pd->force_speed_100;
+		priv->dma_chan_en_mask = pd->dma_chan_en_mask;
+		priv->dma_chan_int_mask = pd->dma_chan_int_mask;
+		priv->dma_chan_width = pd->dma_chan_width;
+		priv->dma_has_sram = pd->dma_has_sram;
+		priv->dma_desc_shift = pd->dma_desc_shift;
 	}
 
 	if (priv->mac_id == 0 && priv->has_phy && !priv->use_external_mii) {
@@ -2118,8 +2154,8 @@ static int bcm_enetsw_open(struct net_device *dev)
 	kdev = &priv->pdev->dev;
 
 	/* mask all interrupts and request them */
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan);
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan);
 
 	ret = request_irq(priv->irq_rx, bcm_enet_isr_dma,
 			  IRQF_DISABLED, dev->name, dev);
@@ -2231,23 +2267,23 @@ static int bcm_enetsw_open(struct net_device *dev)
 
 	/* write rx & tx ring addresses */
 	enet_dmas_writel(priv, priv->rx_desc_dma,
-			 ENETDMAS_RSTART_REG(priv->rx_chan));
+			 ENETDMAS_RSTART_REG, priv->rx_chan);
 	enet_dmas_writel(priv, priv->tx_desc_dma,
-			 ENETDMAS_RSTART_REG(priv->tx_chan));
+			 ENETDMAS_RSTART_REG, priv->tx_chan);
 
 	/* clear remaining state ram for rx & tx channel */
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->rx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG(priv->tx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->rx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG(priv->tx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->rx_chan));
-	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG(priv->tx_chan));
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG, priv->rx_chan);
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM2_REG, priv->tx_chan);
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG, priv->rx_chan);
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM3_REG, priv->tx_chan);
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG, priv->rx_chan);
+	enet_dmas_writel(priv, 0, ENETDMAS_SRAM4_REG, priv->tx_chan);
 
 	/* set dma maximum burst len */
 	enet_dmac_writel(priv, priv->dma_maxburst,
-			 ENETDMAC_MAXBURST_REG(priv->rx_chan));
+			 ENETDMAC_MAXBURST, priv->rx_chan);
 	enet_dmac_writel(priv, priv->dma_maxburst,
-			 ENETDMAC_MAXBURST_REG(priv->tx_chan));
+			 ENETDMAC_MAXBURST, priv->tx_chan);
 
 	/* set flow control low/high threshold to 1/3 / 2/3 */
 	val = priv->rx_ring_size / 3;
@@ -2261,21 +2297,21 @@ static int bcm_enetsw_open(struct net_device *dev)
 	wmb();
 	enet_dma_writel(priv, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG);
 	enet_dmac_writel(priv, ENETDMAC_CHANCFG_EN_MASK,
-			 ENETDMAC_CHANCFG_REG(priv->rx_chan));
+			 ENETDMAC_CHANCFG, priv->rx_chan);
 
 	/* watch "packet transferred" interrupt in rx and tx */
 	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IR_REG(priv->rx_chan));
+			 ENETDMAC_IR, priv->rx_chan);
 	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IR_REG(priv->tx_chan));
+			 ENETDMAC_IR, priv->tx_chan);
 
 	/* make sure we enable napi before rx interrupt  */
 	napi_enable(&priv->napi);
 
 	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IRMASK_REG(priv->rx_chan));
+			 ENETDMAC_IRMASK, priv->rx_chan);
 	enet_dmac_writel(priv, ENETDMAC_IR_PKTDONE_MASK,
-			 ENETDMAC_IRMASK_REG(priv->tx_chan));
+			 ENETDMAC_IRMASK, priv->tx_chan);
 
 	netif_carrier_on(dev);
 	netif_start_queue(dev);
@@ -2377,8 +2413,8 @@ static int bcm_enetsw_stop(struct net_device *dev)
 	del_timer_sync(&priv->rx_timeout);
 
 	/* mask all interrupts */
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->rx_chan));
-	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK_REG(priv->tx_chan));
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->rx_chan);
+	enet_dmac_writel(priv, 0, ENETDMAC_IRMASK, priv->tx_chan);
 
 	/* disable dma & mac */
 	bcm_enet_disable_dma(priv, priv->tx_chan);
@@ -2712,6 +2748,10 @@ static int bcm_enetsw_probe(struct platform_device *pdev)
 		memcpy(priv->used_ports, pd->used_ports,
 		       sizeof(pd->used_ports));
 		priv->num_ports = pd->num_ports;
+		priv->dma_has_sram = pd->dma_has_sram;
+		priv->dma_chan_en_mask = pd->dma_chan_en_mask;
+		priv->dma_chan_int_mask = pd->dma_chan_int_mask;
+		priv->dma_chan_width = pd->dma_chan_width;
 	}
 
 	ret = compute_hw_mtu(priv, dev->mtu);
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.h b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
index 721ffba..f55af43 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
@@ -339,6 +339,21 @@ struct bcm_enet_priv {
 	/* used to poll switch port state */
 	struct timer_list swphy_poll;
 	spinlock_t enetsw_mdio_lock;
+
+	/* dma channel enable mask */
+	u32 dma_chan_en_mask;
+
+	/* dma channel interrupt mask */
+	u32 dma_chan_int_mask;
+
+	/* DMA engine has internal SRAM */
+	bool dma_has_sram;
+
+	/* dma channel width */
+	unsigned int dma_chan_width;
+
+	/* dma descriptor shift value */
+	unsigned int dma_desc_shift;
 };
 
 
-- 
cgit v0.10.2


From 1d8faf48c74b8329a0322dc4b2a2030ae5003c86 Mon Sep 17 00:00:00 2001
From: Rony Efraim <ronye@mellanox.com>
Date: Thu, 13 Jun 2013 13:19:10 +0300
Subject: net/core: Add VF link state control

Add netlink directives and ndo entry to allow for controling
VF link, which can be in one of three states:

Auto - VF link state reflects the PF link state (default)

Up - VF link state is up, traffic from VF to VF works even if
the actual PF link is down

Down - VF link state is down, no traffic from/to this VF, can be of
use while configuring the VF

Signed-off-by: Rony Efraim <ronye@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index c3f817c..a86784d 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -12,5 +12,6 @@ struct ifla_vf_info {
 	__u32 qos;
 	__u32 tx_rate;
 	__u32 spoofchk;
+	__u32 linkstate;
 };
 #endif /* _LINUX_IF_LINK_H */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 8c9fcc4..09b4188 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -829,6 +829,7 @@ struct netdev_fcoe_hbainfo {
  * int (*ndo_set_vf_spoofchk)(struct net_device *dev, int vf, bool setting);
  * int (*ndo_get_vf_config)(struct net_device *dev,
  *			    int vf, struct ifla_vf_info *ivf);
+ * int (*ndo_set_vf_link_state)(struct net_device *dev, int vf, int link_state);
  * int (*ndo_set_vf_port)(struct net_device *dev, int vf,
  *			  struct nlattr *port[]);
  * int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb);
@@ -986,6 +987,8 @@ struct net_device_ops {
 	int			(*ndo_get_vf_config)(struct net_device *dev,
 						     int vf,
 						     struct ifla_vf_info *ivf);
+	int			(*ndo_set_vf_link_state)(struct net_device *dev,
+							 int vf, int link_state);
 	int			(*ndo_set_vf_port)(struct net_device *dev,
 						   int vf,
 						   struct nlattr *port[]);
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index da05a2698..03f6170 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -338,6 +338,7 @@ enum {
 	IFLA_VF_VLAN,
 	IFLA_VF_TX_RATE,	/* TX Bandwidth Allocation */
 	IFLA_VF_SPOOFCHK,	/* Spoof Checking on/off switch */
+	IFLA_VF_LINK_STATE,	/* link state enable/disable/auto switch */
 	__IFLA_VF_MAX,
 };
 
@@ -364,6 +365,18 @@ struct ifla_vf_spoofchk {
 	__u32 setting;
 };
 
+enum {
+	IFLA_VF_LINK_STATE_AUTO,	/* link state of the uplink */
+	IFLA_VF_LINK_STATE_ENABLE,	/* link always up */
+	IFLA_VF_LINK_STATE_DISABLE,	/* link always down */
+	__IFLA_VF_LINK_STATE_MAX,
+};
+
+struct ifla_vf_link_state {
+	__u32 vf;
+	__u32 link_state;
+};
+
 /* VF ports management section
  *
  *	Nested layout of set/get msg is:
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 49c1445..9007533 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -947,6 +947,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 			struct ifla_vf_vlan vf_vlan;
 			struct ifla_vf_tx_rate vf_tx_rate;
 			struct ifla_vf_spoofchk vf_spoofchk;
+			struct ifla_vf_link_state vf_linkstate;
 
 			/*
 			 * Not all SR-IOV capable drivers support the
@@ -956,18 +957,24 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 			 */
 			ivi.spoofchk = -1;
 			memset(ivi.mac, 0, sizeof(ivi.mac));
+			/* The default value for VF link state is "auto"
+			 * IFLA_VF_LINK_STATE_AUTO which equals zero
+			 */
+			ivi.linkstate = 0;
 			if (dev->netdev_ops->ndo_get_vf_config(dev, i, &ivi))
 				break;
 			vf_mac.vf =
 				vf_vlan.vf =
 				vf_tx_rate.vf =
-				vf_spoofchk.vf = ivi.vf;
+				vf_spoofchk.vf =
+				vf_linkstate.vf = ivi.vf;
 
 			memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
 			vf_vlan.vlan = ivi.vlan;
 			vf_vlan.qos = ivi.qos;
 			vf_tx_rate.rate = ivi.tx_rate;
 			vf_spoofchk.setting = ivi.spoofchk;
+			vf_linkstate.link_state = ivi.linkstate;
 			vf = nla_nest_start(skb, IFLA_VF_INFO);
 			if (!vf) {
 				nla_nest_cancel(skb, vfinfo);
@@ -978,7 +985,9 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 			    nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
 				    &vf_tx_rate) ||
 			    nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
-				    &vf_spoofchk))
+				    &vf_spoofchk) ||
+			    nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
+				    &vf_linkstate))
 				goto nla_put_failure;
 			nla_nest_end(skb, vf);
 		}
@@ -1238,6 +1247,15 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr *attr)
 							       ivs->setting);
 			break;
 		}
+		case IFLA_VF_LINK_STATE: {
+			struct ifla_vf_link_state *ivl;
+			ivl = nla_data(vf);
+			err = -EOPNOTSUPP;
+			if (ops->ndo_set_vf_link_state)
+				err = ops->ndo_set_vf_link_state(dev, ivl->vf,
+								 ivl->link_state);
+			break;
+		}
 		default:
 			err = -EINVAL;
 			break;
-- 
cgit v0.10.2


From 948e306d7d645af80ea331b60495710fe4fe12bb Mon Sep 17 00:00:00 2001
From: Rony Efraim <ronye@mellanox.com>
Date: Thu, 13 Jun 2013 13:19:11 +0300
Subject: net/mlx4: Add VF link state support

Add support to change the link state of VF (vPort)

Signed-off-by: Rony Efraim <ronye@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 0e572a5..ea1e038 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -39,6 +39,7 @@
 #include <linux/errno.h>
 
 #include <linux/mlx4/cmd.h>
+#include <linux/mlx4/device.h>
 #include <linux/semaphore.h>
 #include <rdma/ib_smi.h>
 
@@ -2178,7 +2179,54 @@ int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_in
 	ivf->qos	= s_info->default_qos;
 	ivf->tx_rate	= s_info->tx_rate;
 	ivf->spoofchk	= s_info->spoofchk;
+	ivf->linkstate	= s_info->link_state;
 
 	return 0;
 }
 EXPORT_SYMBOL_GPL(mlx4_get_vf_config);
+
+int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_vport_state *s_info;
+	struct mlx4_vport_oper_state *vp_oper;
+	int slave;
+	u8 link_stat_event;
+
+	slave = mlx4_get_slave_indx(dev, vf);
+	if (slave < 0)
+		return -EINVAL;
+
+	switch (link_state) {
+	case IFLA_VF_LINK_STATE_AUTO:
+		/* get current link state */
+		if (!priv->sense.do_sense_port[port])
+			link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE;
+		else
+			link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN;
+	    break;
+
+	case IFLA_VF_LINK_STATE_ENABLE:
+		link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_ACTIVE;
+	    break;
+
+	case IFLA_VF_LINK_STATE_DISABLE:
+		link_stat_event = MLX4_PORT_CHANGE_SUBTYPE_DOWN;
+	    break;
+
+	default:
+		mlx4_warn(dev, "unknown value for link_state %02x on slave %d port %d\n",
+			  link_state, slave, port);
+		return -EINVAL;
+	};
+	/* update the admin & oper state on the link state */
+	s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
+	vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
+	s_info->link_state = link_state;
+	vp_oper->state.link_state = link_state;
+
+	/* send event */
+	mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state);
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 89c47ea..ade276c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2061,6 +2061,13 @@ static int mlx4_en_get_vf_config(struct net_device *dev, int vf, struct ifla_vf_
 	return mlx4_get_vf_config(mdev->dev, en_priv->port, vf, ivf);
 }
 
+static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_state)
+{
+	struct mlx4_en_priv *en_priv = netdev_priv(dev);
+	struct mlx4_en_dev *mdev = en_priv->mdev;
+
+	return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state);
+}
 static const struct net_device_ops mlx4_netdev_ops = {
 	.ndo_open		= mlx4_en_open,
 	.ndo_stop		= mlx4_en_close,
@@ -2101,6 +2108,7 @@ static const struct net_device_ops mlx4_netdev_ops_master = {
 	.ndo_set_vf_mac		= mlx4_en_set_vf_mac,
 	.ndo_set_vf_vlan	= mlx4_en_set_vf_vlan,
 	.ndo_set_vf_spoofchk	= mlx4_en_set_vf_spoofchk,
+	.ndo_set_vf_link_state	= mlx4_en_set_vf_link_state,
 	.ndo_get_vf_config	= mlx4_en_get_vf_config,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= mlx4_en_netpoll,
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 6000342..7e04286 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -448,6 +448,7 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
 	int i;
 	enum slave_port_gen_event gen_event;
 	unsigned long flags;
+	struct mlx4_vport_state *s_info;
 
 	while ((eqe = next_eqe_sw(eq, dev->caps.eqe_factor))) {
 		/*
@@ -556,7 +557,9 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
 						mlx4_dbg(dev, "%s: Sending MLX4_PORT_CHANGE_SUBTYPE_DOWN"
 							 " to slave: %d, port:%d\n",
 							 __func__, i, port);
-						mlx4_slave_event(dev, i, eqe);
+						s_info = &priv->mfunc.master.vf_oper[slave].vport[port].state;
+						if (IFLA_VF_LINK_STATE_AUTO == s_info->link_state)
+							mlx4_slave_event(dev, i, eqe);
 					} else {  /* IB port */
 						set_and_calc_slave_port_state(dev, i, port,
 									      MLX4_PORT_STATE_DEV_EVENT_PORT_DOWN,
@@ -580,7 +583,9 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
 					for (i = 0; i < dev->num_slaves; i++) {
 						if (i == mlx4_master_func_num(dev))
 							continue;
-						mlx4_slave_event(dev, i, eqe);
+						s_info = &priv->mfunc.master.vf_oper[slave].vport[port].state;
+						if (IFLA_VF_LINK_STATE_AUTO == s_info->link_state)
+							mlx4_slave_event(dev, i, eqe);
 					}
 				else /* IB port */
 					/* port-up event will be sent to a slave when the
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 2c97901..569bbe3 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -830,8 +830,10 @@ int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
 	u8 port_type;
 	u16 short_field;
 	int err;
+	int admin_link_state;
 
 #define MLX4_VF_PORT_NO_LINK_SENSE_MASK	0xE0
+#define MLX4_PORT_LINK_UP_MASK		0x80
 #define QUERY_PORT_CUR_MAX_PKEY_OFFSET	0x0c
 #define QUERY_PORT_CUR_MAX_GID_OFFSET	0x0e
 
@@ -861,6 +863,12 @@ int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
 		/* set port type to currently operating port type */
 		port_type |= (dev->caps.port_type[vhcr->in_modifier] & 0x3);
 
+		admin_link_state = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.link_state;
+		if (IFLA_VF_LINK_STATE_ENABLE == admin_link_state)
+			port_type |= MLX4_PORT_LINK_UP_MASK;
+		else if (IFLA_VF_LINK_STATE_DISABLE == admin_link_state)
+			port_type &= ~MLX4_PORT_LINK_UP_MASK;
+
 		MLX4_PUT(outbox->buf, port_type,
 			 QUERY_PORT_SUPPORTED_TYPE_OFFSET);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index df15bb6..7527293 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -482,6 +482,7 @@ struct mlx4_vport_state {
 	u8  default_qos;
 	u32 tx_rate;
 	bool spoofchk;
+	u32 link_state;
 };
 
 struct mlx4_vf_admin_state {
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index adf6e06..8074a97 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -237,7 +237,7 @@ int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac);
 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos);
 int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting);
 int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf);
-
+int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state);
 
 #define MLX4_COMM_GET_IF_REV(cmd_chan_ver) (u8)((cmd_chan_ver) >> 8)
 
-- 
cgit v0.10.2


From 8a00a61b0ef2bfd1b468dd20c0d0b1a94a8f7475 Mon Sep 17 00:00:00 2001
From: Frederic Danis <frederic.danis@linux.intel.com>
Date: Wed, 29 May 2013 15:35:02 +0200
Subject: NFC: Add basic NCI over SPI

The NFC Forum defines a transport interface based on
Serial Peripheral Interface (SPI) for the NFC Controller
Interface (NCI).

This module implements the SPI transport of NCI, calling SPI module
directly to read/write data to NFC controller (NFCC).

NFCC driver should provide functions performing device open and close.
It should also provide functions asserting/de-asserting interruption
to prevent TX/RX race conditions.
NFCC driver can also fix a delay between transactions if needed by
the hardware.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 1009d3d..3b05beb 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -3,6 +3,7 @@
  *  NFC Controller (NFCC) and a Device Host (DH).
  *
  *  Copyright (C) 2011 Texas Instruments, Inc.
+ *  Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  *  Written by Ilan Elias <ilane@ti.com>
  *
@@ -202,4 +203,52 @@ void nci_req_complete(struct nci_dev *ndev, int result);
 /* ----- NCI status code ----- */
 int nci_to_errno(__u8 code);
 
+/* ----- NCI over SPI acknowledge modes ----- */
+#define NCI_SPI_CRC_DISABLED	0x00
+#define NCI_SPI_CRC_ENABLED	0x01
+
+/* ----- NCI SPI structures ----- */
+struct nci_spi_dev;
+
+struct nci_spi_ops {
+	int (*open)(struct nci_spi_dev *ndev);
+	int (*close)(struct nci_spi_dev *ndev);
+	void (*assert_int)(struct nci_spi_dev *ndev);
+	void (*deassert_int)(struct nci_spi_dev *ndev);
+};
+
+struct nci_spi_dev {
+	struct nci_dev		*nci_dev;
+	struct spi_device	*spi;
+	struct nci_spi_ops	*ops;
+
+	unsigned int		xfer_udelay;	/* microseconds delay between
+						  transactions */
+	u8			acknowledge_mode;
+
+	void			*driver_data;
+};
+
+/* ----- NCI SPI Devices ----- */
+struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
+						struct nci_spi_ops *ops,
+						u32 supported_protocols,
+						u32 supported_se,
+						u8 acknowledge_mode,
+						unsigned int delay);
+void nci_spi_free_device(struct nci_spi_dev *ndev);
+int nci_spi_register_device(struct nci_spi_dev *ndev);
+void nci_spi_unregister_device(struct nci_spi_dev *ndev);
+
+static inline void nci_spi_set_drvdata(struct nci_spi_dev *ndev,
+					    void *data)
+{
+	ndev->driver_data = data;
+}
+
+static inline void *nci_spi_get_drvdata(struct nci_spi_dev *ndev)
+{
+	return ndev->driver_data;
+}
+
 #endif /* __NCI_CORE_H */
diff --git a/net/nfc/nci/Kconfig b/net/nfc/nci/Kconfig
index 6d69b5f..2a24160 100644
--- a/net/nfc/nci/Kconfig
+++ b/net/nfc/nci/Kconfig
@@ -8,3 +8,13 @@ config NFC_NCI
 
 	  Say Y here to compile NCI support into the kernel or say M to
 	  compile it as module (nci).
+
+config NFC_NCI_SPI
+	depends on NFC_NCI && SPI
+	bool "NCI over SPI protocol support"
+	default n
+	help
+	  NCI (NFC Controller Interface) is a communication protocol between
+	  an NFC Controller (NFCC) and a Device Host (DH).
+
+	  Say yes if you use an NCI driver that requires SPI link layer.
diff --git a/net/nfc/nci/Makefile b/net/nfc/nci/Makefile
index cdb3a2e..7aeedc4 100644
--- a/net/nfc/nci/Makefile
+++ b/net/nfc/nci/Makefile
@@ -4,4 +4,6 @@
 
 obj-$(CONFIG_NFC_NCI) += nci.o
 
-nci-objs := core.o data.o lib.o ntf.o rsp.o
\ No newline at end of file
+nci-objs := core.o data.o lib.o ntf.o rsp.o
+
+nci-$(CONFIG_NFC_NCI_SPI) += spi.o
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
new file mode 100644
index 0000000..ebcdba5
--- /dev/null
+++ b/net/nfc/nci/spi.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2013  Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#define pr_fmt(fmt) "nci_spi: %s: " fmt, __func__
+
+#include <linux/export.h>
+#include <linux/spi/spi.h>
+#include <linux/nfc.h>
+#include <net/nfc/nci_core.h>
+
+#define NCI_SPI_HDR_LEN			4
+#define NCI_SPI_CRC_LEN			2
+
+static int nci_spi_open(struct nci_dev *nci_dev)
+{
+	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
+
+	return ndev->ops->open(ndev);
+}
+
+static int nci_spi_close(struct nci_dev *nci_dev)
+{
+	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
+
+	return ndev->ops->close(ndev);
+}
+
+static int nci_spi_send(struct nci_dev *nci_dev, struct sk_buff *skb)
+{
+	return 0;
+}
+
+static struct nci_ops nci_spi_ops = {
+	.open = nci_spi_open,
+	.close = nci_spi_close,
+	.send = nci_spi_send,
+};
+
+/* ---- Interface to NCI SPI drivers ---- */
+
+/**
+ * nci_spi_allocate_device - allocate a new nci spi device
+ *
+ * @spi: SPI device
+ * @ops: device operations
+ * @supported_protocols: NFC protocols supported by the device
+ * @supported_se: NFC Secure Elements supported by the device
+ * @acknowledge_mode: Acknowledge mode used by the device
+ * @delay: delay between transactions in us
+ */
+struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
+						struct nci_spi_ops *ops,
+						u32 supported_protocols,
+						u32 supported_se,
+						u8 acknowledge_mode,
+						unsigned int delay)
+{
+	struct nci_spi_dev *ndev;
+	int tailroom = 0;
+
+	if (!ops->open || !ops->close || !ops->assert_int || !ops->deassert_int)
+		return NULL;
+
+	if (!supported_protocols)
+		return NULL;
+
+	ndev = devm_kzalloc(&spi->dev, sizeof(struct nci_dev), GFP_KERNEL);
+	if (!ndev)
+		return NULL;
+
+	ndev->ops = ops;
+	ndev->acknowledge_mode = acknowledge_mode;
+	ndev->xfer_udelay = delay;
+
+	if (acknowledge_mode == NCI_SPI_CRC_ENABLED)
+		tailroom += NCI_SPI_CRC_LEN;
+
+	ndev->nci_dev = nci_allocate_device(&nci_spi_ops, supported_protocols,
+					    supported_se, NCI_SPI_HDR_LEN,
+					    tailroom);
+	if (!ndev->nci_dev)
+		return NULL;
+
+	nci_set_drvdata(ndev->nci_dev, ndev);
+
+	return ndev;
+}
+EXPORT_SYMBOL_GPL(nci_spi_allocate_device);
+
+/**
+ * nci_spi_free_device - deallocate nci spi device
+ *
+ * @ndev: The nci spi device to deallocate
+ */
+void nci_spi_free_device(struct nci_spi_dev *ndev)
+{
+	nci_free_device(ndev->nci_dev);
+}
+EXPORT_SYMBOL_GPL(nci_spi_free_device);
+
+/**
+ * nci_spi_register_device - register a nci spi device in the nfc subsystem
+ *
+ * @pdev: The nci spi device to register
+ */
+int nci_spi_register_device(struct nci_spi_dev *ndev)
+{
+	return nci_register_device(ndev->nci_dev);
+}
+EXPORT_SYMBOL_GPL(nci_spi_register_device);
+
+/**
+ * nci_spi_unregister_device - unregister a nci spi device in the nfc subsystem
+ *
+ * @dev: The nci spi device to unregister
+ */
+void nci_spi_unregister_device(struct nci_spi_dev *ndev)
+{
+	nci_unregister_device(ndev->nci_dev);
+}
+EXPORT_SYMBOL_GPL(nci_spi_unregister_device);
-- 
cgit v0.10.2


From ee9596d467e4d05c77a8c883aeeb5b74d1a3cd31 Mon Sep 17 00:00:00 2001
From: Frederic Danis <frederic.danis@linux.intel.com>
Date: Wed, 29 May 2013 15:35:03 +0200
Subject: NFC: Add NCI over SPI send

Before any operation, driver interruption is de-asserted to prevent
race condition between TX and RX.

The NCI over SPI header is added in front of NCI packet.
If acknowledged mode is set, CRC-16-CCITT is added to the packet.
Then the packet is forwarded to SPI module to be sent.

A delay after the transaction is added.
This delay is determined by the driver during nci_spi_allocate_device()
call and can be 0.

After data has been sent, driver interruption is re-asserted.

If acknowledged mode is set, nci_spi_send will block until
acknowledgment is received.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 3b05beb..36df525 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -226,6 +226,9 @@ struct nci_spi_dev {
 						  transactions */
 	u8			acknowledge_mode;
 
+	struct completion	req_completion;
+	u8			req_result;
+
 	void			*driver_data;
 };
 
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index ebcdba5..6258461 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -20,12 +20,25 @@
 
 #include <linux/export.h>
 #include <linux/spi/spi.h>
+#include <linux/crc-ccitt.h>
 #include <linux/nfc.h>
 #include <net/nfc/nci_core.h>
 
 #define NCI_SPI_HDR_LEN			4
 #define NCI_SPI_CRC_LEN			2
 
+#define NCI_SPI_SEND_TIMEOUT	(NCI_CMD_TIMEOUT > NCI_DATA_TIMEOUT ? \
+					NCI_CMD_TIMEOUT : NCI_DATA_TIMEOUT)
+
+#define NCI_SPI_DIRECT_WRITE	0x01
+#define NCI_SPI_DIRECT_READ	0x02
+
+#define ACKNOWLEDGE_NONE	0
+#define ACKNOWLEDGE_ACK		1
+#define ACKNOWLEDGE_NACK	2
+
+#define CRC_INIT		0xFFFF
+
 static int nci_spi_open(struct nci_dev *nci_dev)
 {
 	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
@@ -40,9 +53,65 @@ static int nci_spi_close(struct nci_dev *nci_dev)
 	return ndev->ops->close(ndev);
 }
 
+static int __nci_spi_send(struct nci_spi_dev *ndev, struct sk_buff *skb)
+{
+	struct spi_message m;
+	struct spi_transfer t;
+
+	t.tx_buf = skb->data;
+	t.len = skb->len;
+	t.cs_change = 0;
+	t.delay_usecs = ndev->xfer_udelay;
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t, &m);
+
+	return spi_sync(ndev->spi, &m);
+}
+
 static int nci_spi_send(struct nci_dev *nci_dev, struct sk_buff *skb)
 {
-	return 0;
+	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
+	unsigned int payload_len = skb->len;
+	unsigned char *hdr;
+	int ret;
+	long completion_rc;
+
+	ndev->ops->deassert_int(ndev);
+
+	/* add the NCI SPI header to the start of the buffer */
+	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
+	hdr[0] = NCI_SPI_DIRECT_WRITE;
+	hdr[1] = ndev->acknowledge_mode;
+	hdr[2] = payload_len >> 8;
+	hdr[3] = payload_len & 0xFF;
+
+	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+		u16 crc;
+
+		crc = crc_ccitt(CRC_INIT, skb->data, skb->len);
+		*skb_put(skb, 1) = crc >> 8;
+		*skb_put(skb, 1) = crc & 0xFF;
+	}
+
+	ret = __nci_spi_send(ndev, skb);
+
+	kfree_skb(skb);
+	ndev->ops->assert_int(ndev);
+
+	if (ret != 0 || ndev->acknowledge_mode == NCI_SPI_CRC_DISABLED)
+		goto done;
+
+	init_completion(&ndev->req_completion);
+	completion_rc =
+		wait_for_completion_interruptible_timeout(&ndev->req_completion,
+							  NCI_SPI_SEND_TIMEOUT);
+
+	if (completion_rc <= 0 || ndev->req_result == ACKNOWLEDGE_NACK)
+		ret = -EIO;
+
+done:
+	return ret;
 }
 
 static struct nci_ops nci_spi_ops = {
-- 
cgit v0.10.2


From 391d8a2da787257aeaf952c974405b53926e3fb3 Mon Sep 17 00:00:00 2001
From: Frederic Danis <frederic.danis@linux.intel.com>
Date: Wed, 29 May 2013 15:35:04 +0200
Subject: NFC: Add NCI over SPI receive

Before any operation, driver interruption is de-asserted to prevent
race condition between TX and RX.

Transaction starts by emitting "Direct read" and acknowledged mode
bytes. Then packet length is read allowing to allocate correct NCI
socket buffer. After that payload is retrieved.

A delay after the transaction can be added.
This delay is determined by the driver during nci_spi_allocate_device()
call and can be 0.

If acknowledged mode is set:
- CRC of header and payload is checked
- if frame reception fails (CRC error): NACK is sent
- if received frame has ACK or NACK flag: unblock nci_spi_send()

Payload is passed to NCI module.

At the end, driver interruption is re asserted.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 36df525..fc1296d 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -242,6 +242,7 @@ struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
 void nci_spi_free_device(struct nci_spi_dev *ndev);
 int nci_spi_register_device(struct nci_spi_dev *ndev);
 void nci_spi_unregister_device(struct nci_spi_dev *ndev);
+int nci_spi_recv_frame(struct nci_spi_dev *ndev);
 
 static inline void nci_spi_set_drvdata(struct nci_spi_dev *ndev,
 					    void *data)
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index 6258461..70afc38 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -26,6 +26,8 @@
 
 #define NCI_SPI_HDR_LEN			4
 #define NCI_SPI_CRC_LEN			2
+#define NCI_SPI_ACK_SHIFT		6
+#define NCI_SPI_MSB_PAYLOAD_MASK	0x3F
 
 #define NCI_SPI_SEND_TIMEOUT	(NCI_CMD_TIMEOUT > NCI_DATA_TIMEOUT ? \
 					NCI_CMD_TIMEOUT : NCI_DATA_TIMEOUT)
@@ -203,3 +205,175 @@ void nci_spi_unregister_device(struct nci_spi_dev *ndev)
 	nci_unregister_device(ndev->nci_dev);
 }
 EXPORT_SYMBOL_GPL(nci_spi_unregister_device);
+
+static int send_acknowledge(struct nci_spi_dev *ndev, u8 acknowledge)
+{
+	struct sk_buff *skb;
+	unsigned char *hdr;
+	u16 crc;
+	int ret;
+
+	skb = nci_skb_alloc(ndev->nci_dev, 0, GFP_KERNEL);
+
+	/* add the NCI SPI header to the start of the buffer */
+	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
+	hdr[0] = NCI_SPI_DIRECT_WRITE;
+	hdr[1] = NCI_SPI_CRC_ENABLED;
+	hdr[2] = acknowledge << NCI_SPI_ACK_SHIFT;
+	hdr[3] = 0;
+
+	crc = crc_ccitt(CRC_INIT, skb->data, skb->len);
+	*skb_put(skb, 1) = crc >> 8;
+	*skb_put(skb, 1) = crc & 0xFF;
+
+	ret = __nci_spi_send(ndev, skb);
+
+	kfree_skb(skb);
+
+	return ret;
+}
+
+static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *ndev)
+{
+	struct sk_buff *skb;
+	struct spi_message m;
+	unsigned char req[2], resp_hdr[2];
+	struct spi_transfer tx, rx;
+	unsigned short rx_len = 0;
+	int ret;
+
+	spi_message_init(&m);
+	req[0] = NCI_SPI_DIRECT_READ;
+	req[1] = ndev->acknowledge_mode;
+	tx.tx_buf = req;
+	tx.len = 2;
+	tx.cs_change = 0;
+	spi_message_add_tail(&tx, &m);
+	rx.rx_buf = resp_hdr;
+	rx.len = 2;
+	rx.cs_change = 1;
+	spi_message_add_tail(&rx, &m);
+	ret = spi_sync(ndev->spi, &m);
+
+	if (ret)
+		return NULL;
+
+	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
+		rx_len = ((resp_hdr[0] & NCI_SPI_MSB_PAYLOAD_MASK) << 8) +
+				resp_hdr[1] + NCI_SPI_CRC_LEN;
+	else
+		rx_len = (resp_hdr[0] << 8) | resp_hdr[1];
+
+	skb = nci_skb_alloc(ndev->nci_dev, rx_len, GFP_KERNEL);
+	if (!skb)
+		return NULL;
+
+	spi_message_init(&m);
+	rx.rx_buf = skb_put(skb, rx_len);
+	rx.len = rx_len;
+	rx.cs_change = 0;
+	rx.delay_usecs = ndev->xfer_udelay;
+	spi_message_add_tail(&rx, &m);
+	ret = spi_sync(ndev->spi, &m);
+
+	if (ret)
+		goto receive_error;
+
+	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+		*skb_push(skb, 1) = resp_hdr[1];
+		*skb_push(skb, 1) = resp_hdr[0];
+	}
+
+	return skb;
+
+receive_error:
+	kfree_skb(skb);
+
+	return NULL;
+}
+
+static int nci_spi_check_crc(struct sk_buff *skb)
+{
+	u16 crc_data = (skb->data[skb->len - 2] << 8) |
+			skb->data[skb->len - 1];
+	int ret;
+
+	ret = (crc_ccitt(CRC_INIT, skb->data, skb->len - NCI_SPI_CRC_LEN)
+			== crc_data);
+
+	skb_trim(skb, skb->len - NCI_SPI_CRC_LEN);
+
+	return ret;
+}
+
+static u8 nci_spi_get_ack(struct sk_buff *skb)
+{
+	u8 ret;
+
+	ret = skb->data[0] >> NCI_SPI_ACK_SHIFT;
+
+	/* Remove NFCC part of the header: ACK, NACK and MSB payload len */
+	skb_pull(skb, 2);
+
+	return ret;
+}
+
+/**
+ * nci_spi_recv_frame - receive frame from NCI SPI drivers
+ *
+ * @ndev: The nci spi device
+ * Context: can sleep
+ *
+ * This call may only be used from a context that may sleep.  The sleep
+ * is non-interruptible, and has no timeout.
+ *
+ * It returns zero on success, else a negative error code.
+ */
+int nci_spi_recv_frame(struct nci_spi_dev *ndev)
+{
+	struct sk_buff *skb;
+	int ret = 0;
+
+	ndev->ops->deassert_int(ndev);
+
+	/* Retrieve frame from SPI */
+	skb = __nci_spi_recv_frame(ndev);
+	if (!skb) {
+		ret = -EIO;
+		goto done;
+	}
+
+	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+		if (!nci_spi_check_crc(skb)) {
+			send_acknowledge(ndev, ACKNOWLEDGE_NACK);
+			goto done;
+		}
+
+		/* In case of acknowledged mode: if ACK or NACK received,
+		 * unblock completion of latest frame sent.
+		 */
+		ndev->req_result = nci_spi_get_ack(skb);
+		if (ndev->req_result)
+			complete(&ndev->req_completion);
+	}
+
+	/* If there is no payload (ACK/NACK only frame),
+	 * free the socket buffer
+	 */
+	if (skb->len == 0) {
+		kfree_skb(skb);
+		goto done;
+	}
+
+	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
+		send_acknowledge(ndev, ACKNOWLEDGE_ACK);
+
+	/* Forward skb to NCI core layer */
+	ret = nci_recv_frame(ndev->nci_dev, skb);
+
+done:
+	ndev->ops->assert_int(ndev);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(nci_spi_recv_frame);
-- 
cgit v0.10.2


From 31c44464acb8152db5745da700be58ac95ba0a83 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Mon, 27 May 2013 14:59:40 +0200
Subject: NFC: pn533: Use 0x3 for SENSF_REQ Time Slot Number (TSN)

LLCP validation requires TSN to be 0x03 for type F.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 0bdfa88..6bd4f59 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -258,7 +258,7 @@ static const struct pn533_poll_modulations poll_mod[] = {
 				.opcode = PN533_FELICA_OPC_SENSF_REQ,
 				.sc = PN533_FELICA_SENSF_SC_ALL,
 				.rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE,
-				.tsn = 0,
+				.tsn = 0x03,
 			},
 		},
 		.len = 7,
@@ -271,7 +271,7 @@ static const struct pn533_poll_modulations poll_mod[] = {
 				.opcode = PN533_FELICA_OPC_SENSF_REQ,
 				.sc = PN533_FELICA_SENSF_SC_ALL,
 				.rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE,
-				.tsn = 0,
+				.tsn = 0x03,
 			},
 		 },
 		.len = 7,
-- 
cgit v0.10.2


From 322bce957e9b0e30ef7147dae0414ad8f3f558c8 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Mon, 27 May 2013 15:29:11 +0200
Subject: NFC: pn533: Copy NFCID2 through ATR_REQ

When using NFC-F we should copy the NFCID2 buffer that we got from
SENSF_RES through the ATR_REQ NFCID3 buffer. Not doing so violates
NFC Forum digital requirement #189.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 6bd4f59..e196bdf 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -1235,7 +1235,7 @@ static int pn533_target_found_type_a(struct nfc_target *nfc_tgt, u8 *tgt_data,
 struct pn533_target_felica {
 	u8 pol_res;
 	u8 opcode;
-	u8 nfcid2[8];
+	u8 nfcid2[NFC_NFCID2_MAXSIZE];
 	u8 pad[8];
 	/* optional */
 	u8 syst_code[];
@@ -1275,6 +1275,9 @@ static int pn533_target_found_felica(struct nfc_target *nfc_tgt, u8 *tgt_data,
 	memcpy(nfc_tgt->sensf_res, &tgt_felica->opcode, 9);
 	nfc_tgt->sensf_res_len = 9;
 
+	memcpy(nfc_tgt->nfcid2, tgt_felica->nfcid2, NFC_NFCID2_MAXSIZE);
+	nfc_tgt->nfcid2_len = NFC_NFCID2_MAXSIZE;
+
 	return 0;
 }
 
@@ -2084,6 +2087,9 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
 	if (comm_mode == NFC_COMM_PASSIVE)
 		skb_len += PASSIVE_DATA_LEN;
 
+	if (target && target->nfcid2_len)
+		skb_len += NFC_NFCID3_MAXSIZE;
+
 	skb = pn533_alloc_skb(dev, skb_len);
 	if (!skb)
 		return -ENOMEM;
@@ -2100,6 +2106,12 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
 		*next |= 1;
 	}
 
+	if (target && target->nfcid2_len) {
+		memcpy(skb_put(skb, NFC_NFCID3_MAXSIZE), target->nfcid2,
+		       target->nfcid2_len);
+		*next |= 2;
+	}
+
 	if (gb != NULL && gb_len > 0) {
 		memcpy(skb_put(skb, gb_len), gb, gb_len);
 		*next |= 4; /* We have some Gi */
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 3563dbd..8fc1784 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -84,6 +84,8 @@ struct nfc_target {
 	u8 sel_res;
 	u8 nfcid1_len;
 	u8 nfcid1[NFC_NFCID1_MAXSIZE];
+	u8 nfcid2_len;
+	u8 nfcid2[NFC_NFCID2_MAXSIZE];
 	u8 sensb_res_len;
 	u8 sensb_res[NFC_SENSB_RES_MAXSIZE];
 	u8 sensf_res_len;
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index b6cbd16..fb304fb 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -164,6 +164,8 @@ enum nfc_sdp_attr {
 
 #define NFC_DEVICE_NAME_MAXSIZE 8
 #define NFC_NFCID1_MAXSIZE 10
+#define NFC_NFCID2_MAXSIZE 8
+#define NFC_NFCID3_MAXSIZE 10
 #define NFC_SENSB_RES_MAXSIZE 12
 #define NFC_SENSF_RES_MAXSIZE 18
 #define NFC_GB_MAXSIZE        48
-- 
cgit v0.10.2


From 0b456c418a5595b9d67f300c9ac6a2441e774603 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Tue, 7 May 2013 19:22:11 +0200
Subject: NFC: Remove the static supported_se field

Supported secure elements are typically found during a discovery process
initiated when the NFC controller is up and running. For a given NFC
chipset there can be many configurations (embedded SE or not, with or
without a SIM card wired to the NFC controller SWP interface, etc...) and
thus driver code will never know before hand which SEs are available.
So we remove this field, it will be replaced by a real SE discovery
mechanism.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/microread/microread.c b/drivers/nfc/microread/microread.c
index 3420d83..cdb9f6d 100644
--- a/drivers/nfc/microread/microread.c
+++ b/drivers/nfc/microread/microread.c
@@ -650,7 +650,7 @@ int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
 {
 	struct microread_info *info;
 	unsigned long quirks = 0;
-	u32 protocols, se;
+	u32 protocols;
 	struct nfc_hci_init_data init_data;
 	int r;
 
@@ -678,10 +678,8 @@ int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
 		    NFC_PROTO_ISO14443_B_MASK |
 		    NFC_PROTO_NFC_DEP_MASK;
 
-	se = NFC_SE_UICC | NFC_SE_EMBEDDED;
-
 	info->hdev = nfc_hci_allocate_device(&microread_hci_ops, &init_data,
-					     quirks, protocols, se, llc_name,
+					     quirks, protocols, llc_name,
 					     phy_headroom +
 					     MICROREAD_CMDS_HEADROOM,
 					     phy_tailroom +
diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index 41cf8f7..59f95d8 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -535,7 +535,6 @@ static int nfcwilink_probe(struct platform_device *pdev)
 
 	drv->ndev = nci_allocate_device(&nfcwilink_ops,
 					protocols,
-					NFC_SE_NONE,
 					NFCWILINK_HDR_LEN,
 					0);
 	if (!drv->ndev) {
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index e196bdf..a1b46aa 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -2791,7 +2791,6 @@ static int pn533_probe(struct usb_interface *interface,
 
 
 	dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols,
-					   NFC_SE_NONE,
 					   dev->ops->tx_header_len +
 					   PN533_CMD_DATAEXCH_HEAD_LEN,
 					   dev->ops->tx_tail_len);
diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 84b5168..0d17da7 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -803,7 +803,7 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
 		    struct nfc_hci_dev **hdev)
 {
 	struct pn544_hci_info *info;
-	u32 protocols, se;
+	u32 protocols;
 	struct nfc_hci_init_data init_data;
 	int r;
 
@@ -836,10 +836,8 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
 		    NFC_PROTO_ISO14443_B_MASK |
 		    NFC_PROTO_NFC_DEP_MASK;
 
-	se = NFC_SE_UICC | NFC_SE_EMBEDDED;
-
 	info->hdev = nfc_hci_allocate_device(&pn544_hci_ops, &init_data, 0,
-					     protocols, se, llc_name,
+					     protocols, llc_name,
 					     phy_headroom + PN544_CMDS_HEADROOM,
 					     phy_tailroom, phy_payload);
 	if (!info->hdev) {
diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index 14faf2d..eca8846 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -153,7 +153,6 @@ struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
 					    struct nfc_hci_init_data *init_data,
 					    unsigned long quirks,
 					    u32 protocols,
-					    u32 supported_se,
 					    const char *llc_name,
 					    int tx_headroom,
 					    int tx_tailroom,
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index fc1296d..99fc1f3 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -148,7 +148,6 @@ struct nci_dev {
 /* ----- NCI Devices ----- */
 struct nci_dev *nci_allocate_device(struct nci_ops *ops,
 				    __u32 supported_protocols,
-				    __u32 supported_se,
 				    int tx_headroom,
 				    int tx_tailroom);
 void nci_free_device(struct nci_dev *ndev);
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 8fc1784..9900c0f 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -115,7 +115,6 @@ struct nfc_dev {
 	struct nfc_genl_data genl_data;
 	u32 supported_protocols;
 
-	u32 supported_se;
 	u32 active_se;
 
 	int tx_headroom;
@@ -136,7 +135,6 @@ extern struct class nfc_class;
 
 struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
 				    u32 supported_protocols,
-				    u32 supported_se,
 				    int tx_headroom,
 				    int tx_tailroom);
 
diff --git a/net/nfc/core.c b/net/nfc/core.c
index eb3cecf..334954a 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -832,7 +832,6 @@ struct nfc_dev *nfc_get_device(unsigned int idx)
  */
 struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
 				    u32 supported_protocols,
-				    u32 supported_se,
 				    int tx_headroom, int tx_tailroom)
 {
 	struct nfc_dev *dev;
@@ -850,7 +849,6 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
 
 	dev->ops = ops;
 	dev->supported_protocols = supported_protocols;
-	dev->supported_se = supported_se;
 	dev->active_se = NFC_SE_NONE;
 	dev->tx_headroom = tx_headroom;
 	dev->tx_tailroom = tx_tailroom;
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index d2ef1e2..9c8a63d 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -808,7 +808,6 @@ struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
 					    struct nfc_hci_init_data *init_data,
 					    unsigned long quirks,
 					    u32 protocols,
-					    u32 supported_se,
 					    const char *llc_name,
 					    int tx_headroom,
 					    int tx_tailroom,
@@ -834,7 +833,7 @@ struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
 		return NULL;
 	}
 
-	hdev->ndev = nfc_allocate_device(&hci_nfc_ops, protocols, supported_se,
+	hdev->ndev = nfc_allocate_device(&hci_nfc_ops, protocols,
 					 tx_headroom + HCI_CMDS_HEADROOM,
 					 tx_tailroom);
 	if (!hdev->ndev) {
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 8e0dbbe..145bad1 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -658,7 +658,6 @@ static struct nfc_ops nci_nfc_ops = {
  */
 struct nci_dev *nci_allocate_device(struct nci_ops *ops,
 				    __u32 supported_protocols,
-				    __u32 supported_se,
 				    int tx_headroom, int tx_tailroom)
 {
 	struct nci_dev *ndev;
@@ -681,7 +680,6 @@ struct nci_dev *nci_allocate_device(struct nci_ops *ops,
 
 	ndev->nfc_dev = nfc_allocate_device(&nci_nfc_ops,
 					    supported_protocols,
-					    supported_se,
 					    tx_headroom + NCI_DATA_HDR_SIZE,
 					    tx_tailroom);
 	if (!ndev->nfc_dev)
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index 70afc38..c7cf37b 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -162,8 +162,7 @@ struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
 		tailroom += NCI_SPI_CRC_LEN;
 
 	ndev->nci_dev = nci_allocate_device(&nci_spi_ops, supported_protocols,
-					    supported_se, NCI_SPI_HDR_LEN,
-					    tailroom);
+					    NCI_SPI_HDR_LEN, tailroom);
 	if (!ndev->nci_dev)
 		return NULL;
 
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 1deadad..fdbc662c 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -444,7 +444,6 @@ static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev,
 	if (nla_put_string(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)) ||
 	    nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
 	    nla_put_u32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols) ||
-	    nla_put_u32(msg, NFC_ATTR_SE, dev->supported_se) ||
 	    nla_put_u8(msg, NFC_ATTR_DEVICE_POWERED, dev->dev_up) ||
 	    nla_put_u8(msg, NFC_ATTR_RF_MODE, dev->rf_mode))
 		goto nla_put_failure;
-- 
cgit v0.10.2


From 0a946301c2d3eac8673e556df820c0b6023ac6c3 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 10 May 2013 11:57:06 +0200
Subject: NFC: Extend and fix the internal secure element API

Secure elements need to be discovered after enabling the NFC controller.
This is typically done by the NCI core and the HCI drivers (HCI does not
specify how to discover SEs, it is left to the specific drivers).
Also, the SE enable/disable API explicitely takes a SE index as its
argument.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index eca8846..0af851c 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -59,9 +59,10 @@ struct nfc_hci_ops {
 			      struct nfc_target *target);
 	int (*event_received)(struct nfc_hci_dev *hdev, u8 gate, u8 event,
 			      struct sk_buff *skb);
-	int (*enable_se)(struct nfc_dev *dev, u32 secure_element);
-	int (*disable_se)(struct nfc_dev *dev, u32 secure_element);
 	int (*fw_upload)(struct nfc_hci_dev *hdev, const char *firmware_name);
+	int (*discover_se)(struct nfc_hci_dev *dev);
+	int (*enable_se)(struct nfc_hci_dev *dev, u32 se_idx);
+	int (*disable_se)(struct nfc_hci_dev *dev, u32 se_idx);
 };
 
 /* Pipes */
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 9900c0f..5187ec7 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -68,9 +68,12 @@ struct nfc_ops {
 			     void *cb_context);
 	int (*tm_send)(struct nfc_dev *dev, struct sk_buff *skb);
 	int (*check_presence)(struct nfc_dev *dev, struct nfc_target *target);
-	int (*enable_se)(struct nfc_dev *dev, u32 secure_element);
-	int (*disable_se)(struct nfc_dev *dev, u32 secure_element);
 	int (*fw_upload)(struct nfc_dev *dev, const char *firmware_name);
+
+	/* Secure Element API */
+	int (*discover_se)(struct nfc_dev *dev);
+	int (*enable_se)(struct nfc_dev *dev, u32 se_idx);
+	int (*disable_se)(struct nfc_dev *dev, u32 se_idx);
 };
 
 #define NFC_TARGET_IDX_ANY -1
diff --git a/net/nfc/core.c b/net/nfc/core.c
index 334954a..a43a56d 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -126,6 +126,13 @@ int nfc_dev_up(struct nfc_dev *dev)
 	if (!rc)
 		dev->dev_up = true;
 
+	/* We have to enable the device before discovering SEs */
+	if (dev->ops->discover_se) {
+		rc = dev->ops->discover_se(dev);
+		if (!rc)
+			pr_warn("SE discovery failed\n");
+	}
+
 error:
 	device_unlock(&dev->dev);
 	return rc;
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index 9c8a63d..7b1c186 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -692,6 +692,36 @@ static int hci_check_presence(struct nfc_dev *nfc_dev,
 	return hdev->ops->check_presence(hdev, target);
 }
 
+static int hci_discover_se(struct nfc_dev *nfc_dev)
+{
+	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
+
+	if (hdev->ops->discover_se)
+		return hdev->ops->discover_se(hdev);
+
+	return 0;
+}
+
+static int hci_enable_se(struct nfc_dev *nfc_dev, u32 se_idx)
+{
+	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
+
+	if (hdev->ops->enable_se)
+		return hdev->ops->enable_se(hdev, se_idx);
+
+	return 0;
+}
+
+static int hci_disable_se(struct nfc_dev *nfc_dev, u32 se_idx)
+{
+	struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
+
+	if (hdev->ops->disable_se)
+		return hdev->ops->enable_se(hdev, se_idx);
+
+	return 0;
+}
+
 static void nfc_hci_failure(struct nfc_hci_dev *hdev, int err)
 {
 	mutex_lock(&hdev->msg_tx_mutex);
@@ -802,6 +832,9 @@ static struct nfc_ops hci_nfc_ops = {
 	.tm_send = hci_tm_send,
 	.check_presence = hci_check_presence,
 	.fw_upload = hci_fw_upload,
+	.discover_se = hci_discover_se,
+	.enable_se = hci_enable_se,
+	.disable_se = hci_disable_se,
 };
 
 struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index 145bad1..b943d46 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -636,6 +636,21 @@ static int nci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target,
 	return rc;
 }
 
+static int nci_enable_se(struct nfc_dev *nfc_dev, u32 se_idx)
+{
+	return 0;
+}
+
+static int nci_disable_se(struct nfc_dev *nfc_dev, u32 se_idx)
+{
+	return 0;
+}
+
+static int nci_discover_se(struct nfc_dev *nfc_dev)
+{
+	return 0;
+}
+
 static struct nfc_ops nci_nfc_ops = {
 	.dev_up = nci_dev_up,
 	.dev_down = nci_dev_down,
@@ -646,6 +661,9 @@ static struct nfc_ops nci_nfc_ops = {
 	.activate_target = nci_activate_target,
 	.deactivate_target = nci_deactivate_target,
 	.im_transceive = nci_transceive,
+	.enable_se = nci_enable_se,
+	.disable_se = nci_disable_se,
+	.discover_se = nci_discover_se,
 };
 
 /* ---- Interface to NCI drivers ---- */
-- 
cgit v0.10.2


From fed7c25ec0d4894edfc36bbe5c5231e52f45483a Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 10 May 2013 15:28:38 +0200
Subject: NFC: Add secure elements addition and removal API

This API will allow NFC drivers to add and remove the secure elements
they know about or detect. Typically this should be called (asynchronously
or not) from the driver or the host interface stack detect_se hook.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 5187ec7..0e353f1 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -97,6 +97,23 @@ struct nfc_target {
 	u8 logical_idx;
 };
 
+/**
+ * nfc_se - A structure for NFC accessible secure elements.
+ *
+ * @idx: The secure element index. User space will enable or
+ *       disable a secure element by its index.
+ * @type: The secure element type. It can be SE_UICC or
+ *        SE_EMBEDDED.
+ * @state: The secure element state, either enabled or disabled.
+ *
+ */
+struct nfc_se {
+	struct list_head list;
+	u32 idx;
+	u16 type;
+	u16 state;
+};
+
 struct nfc_genl_data {
 	u32 poll_req_portid;
 	struct mutex genl_data_mutex;
@@ -118,7 +135,7 @@ struct nfc_dev {
 	struct nfc_genl_data genl_data;
 	u32 supported_protocols;
 
-	u32 active_se;
+	struct list_head secure_elements;
 
 	int tx_headroom;
 	int tx_tailroom;
@@ -221,4 +238,7 @@ int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb);
 
 void nfc_driver_failure(struct nfc_dev *dev, int err);
 
+int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type);
+int nfc_remove_se(struct nfc_dev *dev, u32 se_idx);
+
 #endif /* __NET_NFC_H */
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index fb304fb..3a57cef 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -199,10 +199,12 @@ enum nfc_sdp_attr {
 #define NFC_PROTO_ISO14443_B_MASK (1 << NFC_PROTO_ISO14443_B)
 
 /* NFC Secure Elements */
-#define NFC_SE_NONE     0x0
 #define NFC_SE_UICC     0x1
 #define NFC_SE_EMBEDDED 0x2
 
+#define NFC_SE_DISABLED 0x0
+#define NFC_SE_ENABLED  0x1
+
 struct sockaddr_nfc {
 	sa_family_t sa_family;
 	__u32 dev_idx;
diff --git a/net/nfc/core.c b/net/nfc/core.c
index a43a56d..dacadfb 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -760,6 +760,49 @@ inline void nfc_driver_failure(struct nfc_dev *dev, int err)
 }
 EXPORT_SYMBOL(nfc_driver_failure);
 
+int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type)
+{
+	struct nfc_se *se, *n;
+
+	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
+
+	list_for_each_entry_safe(se, n, &dev->secure_elements, list)
+		if (se->idx == se_idx)
+			return -EALREADY;
+
+	se = kzalloc(sizeof(struct nfc_se), GFP_KERNEL);
+	if (!se)
+		return -ENOMEM;
+
+	se->idx = se_idx;
+	se->type = type;
+	se->state = NFC_SE_DISABLED;
+	INIT_LIST_HEAD(&se->list);
+
+	list_add(&se->list, &dev->secure_elements);
+
+	return 0;
+}
+EXPORT_SYMBOL(nfc_add_se);
+
+int nfc_remove_se(struct nfc_dev *dev, u32 se_idx)
+{
+	struct nfc_se *se, *n;
+
+	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
+
+	list_for_each_entry_safe(se, n, &dev->secure_elements, list)
+		if (se->idx == se_idx) {
+			list_del(&se->list);
+			kfree(se);
+
+			return 0;
+		}
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(nfc_remove_se);
+
 static void nfc_release(struct device *d)
 {
 	struct nfc_dev *dev = to_nfc_dev(d);
@@ -856,9 +899,9 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
 
 	dev->ops = ops;
 	dev->supported_protocols = supported_protocols;
-	dev->active_se = NFC_SE_NONE;
 	dev->tx_headroom = tx_headroom;
 	dev->tx_tailroom = tx_tailroom;
+	INIT_LIST_HEAD(&dev->secure_elements);
 
 	nfc_genl_data_init(&dev->genl_data);
 
-- 
cgit v0.10.2


From 2757c3723c3d2b13e3a8bfaa034826f64e9cca43 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 10 May 2013 15:47:37 +0200
Subject: NFC: Send netlink events for secure elements additions and removals

When an NFC driver or host controller stack discovers a secure element,
it will call nfc_add_se(). In order for userspace applications to use
these secure elements, a netlink event will then be sent with the SE
index and its type. With that information userspace applications can
decide wether or not to enable SEs, through their indexes.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index 3a57cef..caed0f3 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -95,6 +95,8 @@ enum nfc_commands {
 	NFC_CMD_LLC_SDREQ,
 	NFC_EVENT_LLC_SDRES,
 	NFC_CMD_FW_UPLOAD,
+	NFC_EVENT_SE_ADDED,
+	NFC_EVENT_SE_REMOVED,
 /* private: internal use only */
 	__NFC_CMD_AFTER_LAST
 };
@@ -125,6 +127,8 @@ enum nfc_commands {
  * @NFC_ATTR_LLC_PARAM_MIUX: MIU eXtension parameter
  * @NFC_ATTR_SE: Available Secure Elements
  * @NFC_ATTR_FIRMWARE_NAME: Free format firmware version
+ * @NFC_ATTR_SE_INDEX: Secure element index
+ * @NFC_ATTR_SE_TYPE: Secure element type (UICC or EMBEDDED)
  */
 enum nfc_attrs {
 	NFC_ATTR_UNSPEC,
@@ -148,6 +152,8 @@ enum nfc_attrs {
 	NFC_ATTR_SE,
 	NFC_ATTR_LLC_SDP,
 	NFC_ATTR_FIRMWARE_NAME,
+	NFC_ATTR_SE_INDEX,
+	NFC_ATTR_SE_TYPE,
 /* private: internal use only */
 	__NFC_ATTR_AFTER_LAST
 };
diff --git a/net/nfc/core.c b/net/nfc/core.c
index dacadfb..bb5f16c 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -763,6 +763,7 @@ EXPORT_SYMBOL(nfc_driver_failure);
 int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type)
 {
 	struct nfc_se *se, *n;
+	int rc;
 
 	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
 
@@ -781,6 +782,14 @@ int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type)
 
 	list_add(&se->list, &dev->secure_elements);
 
+	rc = nfc_genl_se_added(dev, se_idx, type);
+	if (rc < 0) {
+		list_del(&se->list);
+		kfree(se);
+
+		return rc;
+	}
+
 	return 0;
 }
 EXPORT_SYMBOL(nfc_add_se);
@@ -788,11 +797,16 @@ EXPORT_SYMBOL(nfc_add_se);
 int nfc_remove_se(struct nfc_dev *dev, u32 se_idx)
 {
 	struct nfc_se *se, *n;
+	int rc;
 
 	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
 
 	list_for_each_entry_safe(se, n, &dev->secure_elements, list)
 		if (se->idx == se_idx) {
+			rc = nfc_genl_se_removed(dev, se_idx);
+			if (rc < 0)
+				return rc;
+
 			list_del(&se->list);
 			kfree(se);
 
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index fdbc662c..8a11a3a 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -426,6 +426,69 @@ free_msg:
 	return rc;
 }
 
+int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg)
+		return -ENOMEM;
+
+	hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+			  NFC_EVENT_SE_ADDED);
+	if (!hdr)
+		goto free_msg;
+
+	if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
+	    nla_put_u32(msg, NFC_ATTR_SE_INDEX, se_idx) ||
+	    nla_put_u8(msg, NFC_ATTR_SE_TYPE, type))
+		goto nla_put_failure;
+
+	genlmsg_end(msg, hdr);
+
+	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+	return 0;
+
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+free_msg:
+	nlmsg_free(msg);
+	return -EMSGSIZE;
+}
+
+int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg)
+		return -ENOMEM;
+
+	hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+			  NFC_EVENT_SE_REMOVED);
+	if (!hdr)
+		goto free_msg;
+
+	if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx) ||
+	    nla_put_u32(msg, NFC_ATTR_SE_INDEX, se_idx))
+		goto nla_put_failure;
+
+	genlmsg_end(msg, hdr);
+
+	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+	return 0;
+
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+free_msg:
+	nlmsg_free(msg);
+	return -EMSGSIZE;
+}
+
 static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev,
 				u32 portid, u32 seq,
 				struct netlink_callback *cb,
diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h
index cf0c481..a6aeee0 100644
--- a/net/nfc/nfc.h
+++ b/net/nfc/nfc.h
@@ -94,6 +94,9 @@ int nfc_genl_tm_deactivated(struct nfc_dev *dev);
 
 int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list);
 
+int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type);
+int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx);
+
 struct nfc_dev *nfc_get_device(unsigned int idx);
 
 static inline void nfc_put_device(struct nfc_dev *dev)
-- 
cgit v0.10.2


From ee656e9d0993144f4e4ad261aefeeaab9554cd3f Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 10 May 2013 15:53:29 +0200
Subject: NFC: Remove and free all SEs when releasing an NFC device

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/core.c b/net/nfc/core.c
index bb5f16c..5b60b9d 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -820,11 +820,19 @@ EXPORT_SYMBOL(nfc_remove_se);
 static void nfc_release(struct device *d)
 {
 	struct nfc_dev *dev = to_nfc_dev(d);
+	struct nfc_se *se, *n;
 
 	pr_debug("dev_name=%s\n", dev_name(&dev->dev));
 
 	nfc_genl_data_exit(&dev->genl_data);
 	kfree(dev->targets);
+
+	list_for_each_entry_safe(se, n, &dev->secure_elements, list) {
+			nfc_genl_se_removed(dev, se->idx);
+			list_del(&se->list);
+			kfree(se);
+	}
+
 	kfree(dev);
 }
 
-- 
cgit v0.10.2


From c531c9ec2969860c98a8a47f501c4874278388d3 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 10 May 2013 16:15:32 +0200
Subject: NFC: Add secure element enablement internal API

Called via netlink, this API will enable or disable a specific secure
element. When a secure element is enabled, it will handle card emulation
and more generically ISO-DEP target mode, i.e. all target mode cases
except for p2p target mode.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/core.c b/net/nfc/core.c
index 5b60b9d..dc96a83 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -528,6 +528,108 @@ error:
 	return rc;
 }
 
+static struct nfc_se *find_se(struct nfc_dev *dev, u32 se_idx)
+{
+	struct nfc_se *se, *n;
+
+	list_for_each_entry_safe(se, n, &dev->secure_elements, list)
+		if (se->idx == se_idx)
+			return se;
+
+	return NULL;
+}
+
+int nfc_enable_se(struct nfc_dev *dev, u32 se_idx)
+{
+
+	struct nfc_se *se;
+	int rc;
+
+	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
+
+	device_lock(&dev->dev);
+
+	if (!device_is_registered(&dev->dev)) {
+		rc = -ENODEV;
+		goto error;
+	}
+
+	if (!dev->dev_up) {
+		rc = -ENODEV;
+		goto error;
+	}
+
+	if (dev->polling) {
+		rc = -EBUSY;
+		goto error;
+	}
+
+	if (!dev->ops->enable_se || !dev->ops->disable_se) {
+		rc = -EOPNOTSUPP;
+		goto error;
+	}
+
+	se = find_se(dev, se_idx);
+	if (!se) {
+		rc = -EINVAL;
+		goto error;
+	}
+
+	if (se->type == NFC_SE_ENABLED) {
+		rc = -EALREADY;
+		goto error;
+	}
+
+	rc = dev->ops->enable_se(dev, se_idx);
+
+error:
+	device_unlock(&dev->dev);
+	return rc;
+}
+
+int nfc_disable_se(struct nfc_dev *dev, u32 se_idx)
+{
+
+	struct nfc_se *se;
+	int rc;
+
+	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
+
+	device_lock(&dev->dev);
+
+	if (!device_is_registered(&dev->dev)) {
+		rc = -ENODEV;
+		goto error;
+	}
+
+	if (!dev->dev_up) {
+		rc = -ENODEV;
+		goto error;
+	}
+
+	if (!dev->ops->enable_se || !dev->ops->disable_se) {
+		rc = -EOPNOTSUPP;
+		goto error;
+	}
+
+	se = find_se(dev, se_idx);
+	if (!se) {
+		rc = -EINVAL;
+		goto error;
+	}
+
+	if (se->type == NFC_SE_DISABLED) {
+		rc = -EALREADY;
+		goto error;
+	}
+
+	rc = dev->ops->disable_se(dev, se_idx);
+
+error:
+	device_unlock(&dev->dev);
+	return rc;
+}
+
 int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len)
 {
 	pr_debug("dev_name=%s gb_len=%d\n", dev_name(&dev->dev), gb_len);
@@ -762,14 +864,14 @@ EXPORT_SYMBOL(nfc_driver_failure);
 
 int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type)
 {
-	struct nfc_se *se, *n;
+	struct nfc_se *se;
 	int rc;
 
 	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
 
-	list_for_each_entry_safe(se, n, &dev->secure_elements, list)
-		if (se->idx == se_idx)
-			return -EALREADY;
+	se = find_se(dev, se_idx);
+	if (se)
+		return -EALREADY;
 
 	se = kzalloc(sizeof(struct nfc_se), GFP_KERNEL);
 	if (!se)
diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h
index a6aeee0..ee85a1f 100644
--- a/net/nfc/nfc.h
+++ b/net/nfc/nfc.h
@@ -147,4 +147,7 @@ int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx);
 int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
 		      data_exchange_cb_t cb, void *cb_context);
 
+int nfc_enable_se(struct nfc_dev *dev, u32 se_idx);
+int nfc_disable_se(struct nfc_dev *dev, u32 se_idx);
+
 #endif /* __LOCAL_NFC_H */
-- 
cgit v0.10.2


From be0856535c64697685af47c5bf2be9f36ab5ca08 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 10 May 2013 17:07:32 +0200
Subject: NFC: Add secure element enablement netlink API

Enabling or disabling an NFC accessible secure element through netlink
requires giving both an NFC controller and a secure element indexes.
Once enabled the secure element will handle card emulation once polling
starts.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 8a11a3a..b05ad90 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1145,6 +1145,52 @@ free_msg:
 	return -EMSGSIZE;
 }
 
+static int nfc_genl_enable_se(struct sk_buff *skb, struct genl_info *info)
+{
+	struct nfc_dev *dev;
+	int rc;
+	u32 idx, se_idx;
+
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
+	    !info->attrs[NFC_ATTR_SE_INDEX])
+		return -EINVAL;
+
+	idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+	se_idx = nla_get_u32(info->attrs[NFC_ATTR_SE_INDEX]);
+
+	dev = nfc_get_device(idx);
+	if (!dev)
+		return -ENODEV;
+
+	rc = nfc_enable_se(dev, se_idx);
+
+	nfc_put_device(dev);
+	return rc;
+}
+
+static int nfc_genl_disable_se(struct sk_buff *skb, struct genl_info *info)
+{
+	struct nfc_dev *dev;
+	int rc;
+	u32 idx, se_idx;
+
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
+	    !info->attrs[NFC_ATTR_SE_INDEX])
+		return -EINVAL;
+
+	idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+	se_idx = nla_get_u32(info->attrs[NFC_ATTR_SE_INDEX]);
+
+	dev = nfc_get_device(idx);
+	if (!dev)
+		return -ENODEV;
+
+	rc = nfc_disable_se(dev, se_idx);
+
+	nfc_put_device(dev);
+	return rc;
+}
+
 static struct genl_ops nfc_genl_ops[] = {
 	{
 		.cmd = NFC_CMD_GET_DEVICE,
@@ -1209,6 +1255,16 @@ static struct genl_ops nfc_genl_ops[] = {
 		.doit = nfc_genl_fw_upload,
 		.policy = nfc_genl_policy,
 	},
+	{
+		.cmd = NFC_CMD_ENABLE_SE,
+		.doit = nfc_genl_enable_se,
+		.policy = nfc_genl_policy,
+	},
+	{
+		.cmd = NFC_CMD_DISABLE_SE,
+		.doit = nfc_genl_disable_se,
+		.policy = nfc_genl_policy,
+	},
 };
 
 
-- 
cgit v0.10.2


From 86eca4e71f41fb90800707cd05f580cd3e0cb836 Mon Sep 17 00:00:00 2001
From: Olivier Guiter <olivier.guiter@linux.intel.com>
Date: Mon, 3 Jun 2013 12:02:29 +0200
Subject: NFC: pn533: Fix ACR122 related debug output

Instead of dumping ACR122 frames as errors, we use the print_hex_dump()
dynamic debug APIs.
We also print an accurate IC version, as the ACR122 is pn532 based.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index a1b46aa..bfb4a4e 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -2501,7 +2501,7 @@ static void pn533_acr122_poweron_rdr_resp(struct urb *urb)
 
 	nfc_dev_dbg(&urb->dev->dev, "%s", __func__);
 
-	print_hex_dump(KERN_ERR, "ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1,
+	print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1,
 		       urb->transfer_buffer, urb->transfer_buffer_length,
 		       false);
 
@@ -2532,7 +2532,7 @@ static int pn533_acr122_poweron_rdr(struct pn533 *dev)
 	dev->out_urb->transfer_buffer = cmd;
 	dev->out_urb->transfer_buffer_length = sizeof(cmd);
 
-	print_hex_dump(KERN_ERR, "ACR122 TX: ", DUMP_PREFIX_NONE, 16, 1,
+	print_hex_dump_debug("ACR122 TX: ", DUMP_PREFIX_NONE, 16, 1,
 		       cmd, sizeof(cmd), false);
 
 	rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
@@ -2786,8 +2786,8 @@ static int pn533_probe(struct usb_interface *interface,
 		goto destroy_wq;
 
 	nfc_dev_info(&dev->interface->dev,
-		     "NXP PN533 firmware ver %d.%d now attached",
-		     fw_ver.ver, fw_ver.rev);
+		     "NXP PN5%02X firmware ver %d.%d now attached",
+		     fw_ver.ic, fw_ver.ver, fw_ver.rev);
 
 
 	dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols,
-- 
cgit v0.10.2


From 58e3dd1558f56e95e7077a63340bb33e7aa42946 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Tue, 4 Jun 2013 11:34:50 +0200
Subject: NFC: Rename nfc_llcp_disconnect() to nfc_llcp_send_disconnect()

nfc_llcp_send_disconnect() already exists but is not used.
nfc_llcp_disconnect() naming is not consistent with other PDU
sending functions.
This patch removes nfc_llcp_send_disconnect() and renames
nfc_llcp_disconnect()

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp.h b/net/nfc/llcp.h
index ff8c434..ac16ebe 100644
--- a/net/nfc/llcp.h
+++ b/net/nfc/llcp.h
@@ -246,7 +246,6 @@ struct nfc_llcp_sdp_tlv *nfc_llcp_build_sdreq_tlv(u8 tid, char *uri,
 void nfc_llcp_free_sdp_tlv(struct nfc_llcp_sdp_tlv *sdp);
 void nfc_llcp_free_sdp_tlv_list(struct hlist_head *sdp_head);
 void nfc_llcp_recv(void *data, struct sk_buff *skb, int err);
-int nfc_llcp_disconnect(struct nfc_llcp_sock *sock);
 int nfc_llcp_send_symm(struct nfc_dev *dev);
 int nfc_llcp_send_connect(struct nfc_llcp_sock *sock);
 int nfc_llcp_send_cc(struct nfc_llcp_sock *sock);
diff --git a/net/nfc/llcp_commands.c b/net/nfc/llcp_commands.c
index c1b23ee..1017894 100644
--- a/net/nfc/llcp_commands.c
+++ b/net/nfc/llcp_commands.c
@@ -339,7 +339,7 @@ static struct sk_buff *llcp_allocate_pdu(struct nfc_llcp_sock *sock,
 	return skb;
 }
 
-int nfc_llcp_disconnect(struct nfc_llcp_sock *sock)
+int nfc_llcp_send_disconnect(struct nfc_llcp_sock *sock)
 {
 	struct sk_buff *skb;
 	struct nfc_dev *dev;
@@ -630,26 +630,6 @@ int nfc_llcp_send_dm(struct nfc_llcp_local *local, u8 ssap, u8 dsap, u8 reason)
 	return 0;
 }
 
-int nfc_llcp_send_disconnect(struct nfc_llcp_sock *sock)
-{
-	struct sk_buff *skb;
-	struct nfc_llcp_local *local;
-
-	pr_debug("Send DISC\n");
-
-	local = sock->local;
-	if (local == NULL)
-		return -ENODEV;
-
-	skb = llcp_allocate_pdu(sock, LLCP_PDU_DISC, 0);
-	if (skb == NULL)
-		return -ENOMEM;
-
-	skb_queue_head(&local->tx_queue, skb);
-
-	return 0;
-}
-
 int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
 			  struct msghdr *msg, size_t len)
 {
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 380253e..03fd316 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -603,7 +603,7 @@ static int llcp_sock_release(struct socket *sock)
 
 	/* Send a DISC */
 	if (sk->sk_state == LLCP_CONNECTED)
-		nfc_llcp_disconnect(llcp_sock);
+		nfc_llcp_send_disconnect(llcp_sock);
 
 	if (sk->sk_state == LLCP_LISTEN) {
 		struct nfc_llcp_sock *lsk, *n;
@@ -614,7 +614,7 @@ static int llcp_sock_release(struct socket *sock)
 			accept_sk = &lsk->sk;
 			lock_sock(accept_sk);
 
-			nfc_llcp_disconnect(lsk);
+			nfc_llcp_send_disconnect(lsk);
 			nfc_llcp_accept_unlink(accept_sk);
 
 			release_sock(accept_sk);
-- 
cgit v0.10.2


From 17f7ae16aef1f58bc4af4c7a16b8778a91a30255 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Tue, 4 Jun 2013 11:34:51 +0200
Subject: NFC: Keep socket alive until the DISC PDU is actually sent

This patch keeps the socket alive and therefore does not remove
it from the sockets list in the local until the DISC PDU has been
actually sent. Otherwise we would reply with DM PDUs before sending
the DISC one.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp.h b/net/nfc/llcp.h
index ac16ebe..71f649e 100644
--- a/net/nfc/llcp.h
+++ b/net/nfc/llcp.h
@@ -19,6 +19,7 @@
 
 enum llcp_state {
 	LLCP_CONNECTED = 1, /* wait_for_packet() wants that */
+	LLCP_DISCONNECTING,
 	LLCP_CLOSED,
 	LLCP_BOUND,
 	LLCP_LISTEN,
diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index 158bdbf..1c4c048 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -730,6 +730,13 @@ static void nfc_llcp_tx_work(struct work_struct *work)
 				       DUMP_PREFIX_OFFSET, 16, 1,
 				       skb->data, skb->len, true);
 
+			if (ptype == LLCP_PDU_DISC && sk != NULL &&
+			    sk->sk_state == LLCP_DISCONNECTING) {
+				nfc_llcp_sock_unlink(&local->sockets, sk);
+				sock_orphan(sk);
+				sock_put(sk);
+			}
+
 			if (ptype == LLCP_PDU_I)
 				copy_skb = skb_copy(skb, GFP_ATOMIC);
 
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 03fd316..47e7acf 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -626,6 +626,13 @@ static int llcp_sock_release(struct socket *sock)
 
 	release_sock(sk);
 
+	/* Keep this sock alive and therefore do not remove it from the sockets
+	 * list until the DISC PDU has been actually sent. Otherwise we would
+	 * reply with DM PDUs before sending the DISC one.
+	 */
+	if (sk->sk_state == LLCP_DISCONNECTING)
+		return err;
+
 	if (sock->type == SOCK_RAW)
 		nfc_llcp_sock_unlink(&local->raw_sockets, sk);
 	else
-- 
cgit v0.10.2


From f1b79dc8915ebf176d6f1fcfc4fee001b6d5ca46 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Wed, 5 Jun 2013 17:15:59 +0200
Subject: NFC: Fix a potential memory leak

In nfc_llcp_tx_work() the sk_buff is not freed when the llcp_sock
is null and the PDU is an I one.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index 1c4c048..44730f0 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -719,6 +719,7 @@ static void nfc_llcp_tx_work(struct work_struct *work)
 		llcp_sock = nfc_llcp_sock(sk);
 
 		if (llcp_sock == NULL && nfc_llcp_ptype(skb) == LLCP_PDU_I) {
+			kfree_skb(skb);
 			nfc_llcp_send_symm(local->dev);
 		} else {
 			struct sk_buff *copy_skb = NULL;
-- 
cgit v0.10.2


From 7cbe0ff3e475b7268ad9b55057048b2299fd60e0 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Thu, 6 Jun 2013 16:23:23 +0200
Subject: NFC: Add a nfc hardware simulation driver

This driver declares two virtual NFC devices supporting NFC-DEP protocol.
An LLCP connection can be established between them and all packets sent
from one device is sent back to the other, acting as loopback devices.

Once established, the LLCP link can be disconnected by disabling the target
device (with rfkill, nfctool, or neard disable-adapter test script).

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig
index 74a852e..b0b64cc 100644
--- a/drivers/nfc/Kconfig
+++ b/drivers/nfc/Kconfig
@@ -36,6 +36,16 @@ config NFC_MEI_PHY
 
 	  If unsure, say N.
 
+config NFC_SIM
+	tristate "NFC hardware simulator driver"
+	help
+	  This driver declares two virtual NFC devices supporting NFC-DEP
+	  protocol. An LLCP connection can be established between them and
+	  all packets sent from one device is sent back to the other, acting as
+	  loopback devices.
+
+	  If unsure, say N.
+
 source "drivers/nfc/pn544/Kconfig"
 source "drivers/nfc/microread/Kconfig"
 
diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile
index aa6bd65..be7636a 100644
--- a/drivers/nfc/Makefile
+++ b/drivers/nfc/Makefile
@@ -7,5 +7,6 @@ obj-$(CONFIG_NFC_MICROREAD)	+= microread/
 obj-$(CONFIG_NFC_PN533)		+= pn533.o
 obj-$(CONFIG_NFC_WILINK)	+= nfcwilink.o
 obj-$(CONFIG_NFC_MEI_PHY)	+= mei_phy.o
+obj-$(CONFIG_NFC_SIM)		+= nfcsim.o
 
 ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG
diff --git a/drivers/nfc/nfcsim.c b/drivers/nfc/nfcsim.c
new file mode 100644
index 0000000..c5c30fb
--- /dev/null
+++ b/drivers/nfc/nfcsim.c
@@ -0,0 +1,541 @@
+/*
+ * NFC hardware simulation driver
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/nfc.h>
+#include <net/nfc/nfc.h>
+
+#define DEV_ERR(_dev, fmt, args...) nfc_dev_err(&_dev->nfc_dev->dev, \
+						"%s: " fmt, __func__, ## args)
+
+#define DEV_DBG(_dev, fmt, args...) nfc_dev_dbg(&_dev->nfc_dev->dev, \
+						"%s: " fmt, __func__, ## args)
+
+#define NFCSIM_VERSION "0.1"
+
+#define NFCSIM_POLL_NONE	0
+#define NFCSIM_POLL_INITIATOR	1
+#define NFCSIM_POLL_TARGET	2
+#define NFCSIM_POLL_DUAL	(NFCSIM_POLL_INITIATOR | NFCSIM_POLL_TARGET)
+
+struct nfcsim {
+	struct nfc_dev *nfc_dev;
+
+	struct mutex lock;
+
+	struct delayed_work recv_work;
+
+	struct sk_buff *clone_skb;
+
+	struct delayed_work poll_work;
+	u8 polling_mode;
+	u8 curr_polling_mode;
+
+	u8 shutting_down;
+
+	u8 up;
+
+	u8 initiator;
+
+	data_exchange_cb_t cb;
+	void *cb_context;
+
+	struct nfcsim *peer_dev;
+};
+
+static struct nfcsim *dev0;
+static struct nfcsim *dev1;
+
+struct workqueue_struct *wq;
+
+static void nfcsim_cleanup_dev(struct nfcsim *dev, u8 shutdown)
+{
+	DEV_DBG(dev, "shutdown=%d", shutdown);
+
+	mutex_lock(&dev->lock);
+
+	dev->polling_mode = NFCSIM_POLL_NONE;
+	dev->shutting_down = shutdown;
+	dev->cb = NULL;
+	dev_kfree_skb(dev->clone_skb);
+	dev->clone_skb = NULL;
+
+	mutex_unlock(&dev->lock);
+
+	cancel_delayed_work_sync(&dev->poll_work);
+	cancel_delayed_work_sync(&dev->recv_work);
+}
+
+static int nfcsim_target_found(struct nfcsim *dev)
+{
+	struct nfc_target nfc_tgt;
+
+	DEV_DBG(dev, "");
+
+	memset(&nfc_tgt, 0, sizeof(struct nfc_target));
+
+	nfc_tgt.supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+	nfc_targets_found(dev->nfc_dev, &nfc_tgt, 1);
+
+	return 0;
+}
+
+static int nfcsim_dev_up(struct nfc_dev *nfc_dev)
+{
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+	DEV_DBG(dev, "");
+
+	mutex_lock(&dev->lock);
+
+	dev->up = 1;
+
+	mutex_unlock(&dev->lock);
+
+	return 0;
+}
+
+static int nfcsim_dev_down(struct nfc_dev *nfc_dev)
+{
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+	DEV_DBG(dev, "");
+
+	mutex_lock(&dev->lock);
+
+	dev->up = 0;
+
+	mutex_unlock(&dev->lock);
+
+	return 0;
+}
+
+static int nfcsim_dep_link_up(struct nfc_dev *nfc_dev,
+			      struct nfc_target *target,
+			      u8 comm_mode, u8 *gb, size_t gb_len)
+{
+	int rc;
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+	struct nfcsim *peer = dev->peer_dev;
+	u8 *remote_gb;
+	size_t remote_gb_len;
+
+	DEV_DBG(dev, "target_idx: %d, comm_mode: %d\n", target->idx, comm_mode);
+
+	mutex_lock(&peer->lock);
+
+	nfc_tm_activated(peer->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
+			 NFC_COMM_ACTIVE, gb, gb_len);
+
+	remote_gb = nfc_get_local_general_bytes(peer->nfc_dev, &remote_gb_len);
+	if (!remote_gb) {
+		DEV_ERR(peer, "Can't get remote general bytes");
+
+		mutex_unlock(&peer->lock);
+		return -EINVAL;
+	}
+
+	mutex_unlock(&peer->lock);
+
+	mutex_lock(&dev->lock);
+
+	rc = nfc_set_remote_general_bytes(nfc_dev, remote_gb, remote_gb_len);
+	if (rc) {
+		DEV_ERR(dev, "Can't set remote general bytes");
+		mutex_unlock(&dev->lock);
+		return rc;
+	}
+
+	rc = nfc_dep_link_is_up(nfc_dev, target->idx, NFC_COMM_ACTIVE,
+				NFC_RF_INITIATOR);
+
+	mutex_unlock(&dev->lock);
+
+	return rc;
+}
+
+static int nfcsim_dep_link_down(struct nfc_dev *nfc_dev)
+{
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+	DEV_DBG(dev, "");
+
+	nfcsim_cleanup_dev(dev, 0);
+
+	return 0;
+}
+
+static int nfcsim_start_poll(struct nfc_dev *nfc_dev,
+			     u32 im_protocols, u32 tm_protocols)
+{
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+	int rc;
+
+	mutex_lock(&dev->lock);
+
+	if (dev->polling_mode != NFCSIM_POLL_NONE) {
+		DEV_ERR(dev, "Already in polling mode");
+		rc = -EBUSY;
+		goto exit;
+	}
+
+	if (im_protocols & NFC_PROTO_NFC_DEP_MASK)
+		dev->polling_mode |= NFCSIM_POLL_INITIATOR;
+
+	if (tm_protocols & NFC_PROTO_NFC_DEP_MASK)
+		dev->polling_mode |= NFCSIM_POLL_TARGET;
+
+	if (dev->polling_mode == NFCSIM_POLL_NONE) {
+		DEV_ERR(dev, "Unsupported polling mode");
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	dev->initiator = 0;
+	dev->curr_polling_mode = NFCSIM_POLL_NONE;
+
+	queue_delayed_work(wq, &dev->poll_work, 0);
+
+	DEV_DBG(dev, "Start polling: im: 0x%X, tm: 0x%X", im_protocols,
+		tm_protocols);
+
+	rc = 0;
+exit:
+	mutex_unlock(&dev->lock);
+
+	return rc;
+}
+
+static void nfcsim_stop_poll(struct nfc_dev *nfc_dev)
+{
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+	DEV_DBG(dev, "Stop poll");
+
+	mutex_lock(&dev->lock);
+
+	dev->polling_mode = NFCSIM_POLL_NONE;
+
+	mutex_unlock(&dev->lock);
+
+	cancel_delayed_work_sync(&dev->poll_work);
+}
+
+static int nfcsim_activate_target(struct nfc_dev *nfc_dev,
+				  struct nfc_target *target, u32 protocol)
+{
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+	DEV_DBG(dev, "");
+
+	return -ENOTSUPP;
+}
+
+static void nfcsim_deactivate_target(struct nfc_dev *nfc_dev,
+				     struct nfc_target *target)
+{
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+	DEV_DBG(dev, "");
+}
+
+static void nfcsim_wq_recv(struct work_struct *work)
+{
+	struct nfcsim *dev = container_of(work, struct nfcsim,
+					  recv_work.work);
+
+	mutex_lock(&dev->lock);
+
+	if (dev->shutting_down || !dev->up || !dev->clone_skb) {
+		dev_kfree_skb(dev->clone_skb);
+		goto exit;
+	}
+
+	if (dev->initiator) {
+		if (!dev->cb) {
+			DEV_ERR(dev, "Null recv callback");
+			dev_kfree_skb(dev->clone_skb);
+			goto exit;
+		}
+
+		dev->cb(dev->cb_context, dev->clone_skb, 0);
+		dev->cb = NULL;
+	} else {
+		nfc_tm_data_received(dev->nfc_dev, dev->clone_skb);
+	}
+
+exit:
+	dev->clone_skb = NULL;
+
+	mutex_unlock(&dev->lock);
+}
+
+static int nfcsim_tx(struct nfc_dev *nfc_dev, struct nfc_target *target,
+		     struct sk_buff *skb, data_exchange_cb_t cb,
+		     void *cb_context)
+{
+	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+	struct nfcsim *peer = dev->peer_dev;
+	int err;
+
+	mutex_lock(&dev->lock);
+
+	if (dev->shutting_down || !dev->up) {
+		mutex_unlock(&dev->lock);
+		err = -ENODEV;
+		goto exit;
+	}
+
+	dev->cb = cb;
+	dev->cb_context = cb_context;
+
+	mutex_unlock(&dev->lock);
+
+	mutex_lock(&peer->lock);
+
+	peer->clone_skb = skb_clone(skb, GFP_KERNEL);
+
+	if (!peer->clone_skb) {
+		DEV_ERR(dev, "skb_clone failed");
+		mutex_unlock(&peer->lock);
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	/* This simulates an arbitrary transmission delay between the 2 devices.
+	 * If packet transmission occurs immediately between them, we have a
+	 * non-stop flow of several tens of thousands SYMM packets per second
+	 * and a burning cpu.
+	 *
+	 * TODO: Add support for a sysfs entry to control this delay.
+	 */
+	queue_delayed_work(wq, &peer->recv_work, msecs_to_jiffies(5));
+
+	mutex_unlock(&peer->lock);
+
+	err = 0;
+exit:
+	dev_kfree_skb(skb);
+
+	return err;
+}
+
+static int nfcsim_im_transceive(struct nfc_dev *nfc_dev,
+				struct nfc_target *target, struct sk_buff *skb,
+				data_exchange_cb_t cb, void *cb_context)
+{
+	return nfcsim_tx(nfc_dev, target, skb, cb, cb_context);
+}
+
+static int nfcsim_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
+{
+	return nfcsim_tx(nfc_dev, NULL, skb, NULL, NULL);
+}
+
+static struct nfc_ops nfcsim_nfc_ops = {
+	.dev_up = nfcsim_dev_up,
+	.dev_down = nfcsim_dev_down,
+	.dep_link_up = nfcsim_dep_link_up,
+	.dep_link_down = nfcsim_dep_link_down,
+	.start_poll = nfcsim_start_poll,
+	.stop_poll = nfcsim_stop_poll,
+	.activate_target = nfcsim_activate_target,
+	.deactivate_target = nfcsim_deactivate_target,
+	.im_transceive = nfcsim_im_transceive,
+	.tm_send = nfcsim_tm_send,
+};
+
+static void nfcsim_set_polling_mode(struct nfcsim *dev)
+{
+	if (dev->polling_mode == NFCSIM_POLL_NONE) {
+		dev->curr_polling_mode = NFCSIM_POLL_NONE;
+		return;
+	}
+
+	if (dev->curr_polling_mode == NFCSIM_POLL_NONE) {
+		if (dev->polling_mode & NFCSIM_POLL_INITIATOR)
+			dev->curr_polling_mode = NFCSIM_POLL_INITIATOR;
+		else
+			dev->curr_polling_mode = NFCSIM_POLL_TARGET;
+
+		return;
+	}
+
+	if (dev->polling_mode == NFCSIM_POLL_DUAL) {
+		if (dev->curr_polling_mode == NFCSIM_POLL_TARGET)
+			dev->curr_polling_mode = NFCSIM_POLL_INITIATOR;
+		else
+			dev->curr_polling_mode = NFCSIM_POLL_TARGET;
+	}
+}
+
+static void nfcsim_wq_poll(struct work_struct *work)
+{
+	struct nfcsim *dev = container_of(work, struct nfcsim, poll_work.work);
+	struct nfcsim *peer = dev->peer_dev;
+
+	/* These work items run on an ordered workqueue and are therefore
+	 * serialized. So we can take both mutexes without being dead locked.
+	 */
+	mutex_lock(&dev->lock);
+	mutex_lock(&peer->lock);
+
+	nfcsim_set_polling_mode(dev);
+
+	if (dev->curr_polling_mode == NFCSIM_POLL_NONE) {
+		DEV_DBG(dev, "Not polling");
+		goto unlock;
+	}
+
+	DEV_DBG(dev, "Polling as %s",
+		dev->curr_polling_mode == NFCSIM_POLL_INITIATOR ?
+		"initiator" : "target");
+
+	if (dev->curr_polling_mode == NFCSIM_POLL_TARGET)
+		goto sched_work;
+
+	if (peer->curr_polling_mode == NFCSIM_POLL_TARGET) {
+		peer->polling_mode = NFCSIM_POLL_NONE;
+		dev->polling_mode = NFCSIM_POLL_NONE;
+
+		dev->initiator = 1;
+
+		nfcsim_target_found(dev);
+
+		goto unlock;
+	}
+
+sched_work:
+	/* This defines the delay for an initiator to check if the other device
+	 * is polling in target mode.
+	 * If the device starts in dual mode polling, it switches between
+	 * initiator and target at every round.
+	 * Because the wq is ordered and only 1 work item is executed at a time,
+	 * we'll always have one device polling as initiator and the other as
+	 * target at some point, even if both are started in dual mode.
+	 */
+	queue_delayed_work(wq, &dev->poll_work, msecs_to_jiffies(200));
+
+unlock:
+	mutex_unlock(&peer->lock);
+	mutex_unlock(&dev->lock);
+}
+
+static struct nfcsim *nfcsim_init_dev(void)
+{
+	struct nfcsim *dev;
+	int rc = -ENOMEM;
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (dev == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	mutex_init(&dev->lock);
+
+	INIT_DELAYED_WORK(&dev->recv_work, nfcsim_wq_recv);
+	INIT_DELAYED_WORK(&dev->poll_work, nfcsim_wq_poll);
+
+	dev->nfc_dev = nfc_allocate_device(&nfcsim_nfc_ops,
+					   NFC_PROTO_NFC_DEP_MASK,
+					   0, 0);
+	if (!dev->nfc_dev)
+		goto error;
+
+	nfc_set_drvdata(dev->nfc_dev, dev);
+
+	rc = nfc_register_device(dev->nfc_dev);
+	if (rc)
+		goto free_nfc_dev;
+
+	return dev;
+
+free_nfc_dev:
+	nfc_free_device(dev->nfc_dev);
+
+error:
+	kfree(dev);
+
+	return ERR_PTR(rc);
+}
+
+static void nfcsim_free_device(struct nfcsim *dev)
+{
+	nfc_unregister_device(dev->nfc_dev);
+
+	nfc_free_device(dev->nfc_dev);
+
+	kfree(dev);
+}
+
+int __init nfcsim_init(void)
+{
+	int rc;
+
+	/* We need an ordered wq to ensure that poll_work items are executed
+	 * one at a time.
+	 */
+	wq = alloc_ordered_workqueue("nfcsim", 0);
+	if (!wq) {
+		rc = -ENOMEM;
+		goto exit;
+	}
+
+	dev0 = nfcsim_init_dev();
+	if (IS_ERR(dev0)) {
+		rc = PTR_ERR(dev0);
+		goto exit;
+	}
+
+	dev1 = nfcsim_init_dev();
+	if (IS_ERR(dev1)) {
+		kfree(dev0);
+
+		rc = PTR_ERR(dev1);
+		goto exit;
+	}
+
+	dev0->peer_dev = dev1;
+	dev1->peer_dev = dev0;
+
+	pr_debug("NFCsim " NFCSIM_VERSION " initialized\n");
+
+	rc = 0;
+exit:
+	if (rc)
+		pr_err("Failed to initialize nfcsim driver (%d)\n",
+		       rc);
+
+	return rc;
+}
+
+void __exit nfcsim_exit(void)
+{
+	nfcsim_cleanup_dev(dev0, 1);
+	nfcsim_cleanup_dev(dev1, 1);
+
+	nfcsim_free_device(dev0);
+	nfcsim_free_device(dev1);
+
+	destroy_workqueue(wq);
+}
+
+module_init(nfcsim_init);
+module_exit(nfcsim_exit);
+
+MODULE_DESCRIPTION("NFCSim driver ver " NFCSIM_VERSION);
+MODULE_VERSION(NFCSIM_VERSION);
+MODULE_LICENSE("GPL");
-- 
cgit v0.10.2


From b4011239a08e7e6c2c6e970dfa9e8ecb73139261 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 3 May 2013 18:29:30 +0200
Subject: NFC: llcp: Fix non blocking sockets connections

Without the new LLCP_CONNECTING state, non blocking sockets will be
woken up with a POLLHUP right after calling connect() because their
state is stuck at LLCP_CLOSED.
That prevents userspace from implementing any proper non blocking
socket based NFC p2p client.

Cc: stable@vger.kernel.org
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp.h b/net/nfc/llcp.h
index 71f649e..f4d48b5 100644
--- a/net/nfc/llcp.h
+++ b/net/nfc/llcp.h
@@ -19,6 +19,7 @@
 
 enum llcp_state {
 	LLCP_CONNECTED = 1, /* wait_for_packet() wants that */
+	LLCP_CONNECTING,
 	LLCP_DISCONNECTING,
 	LLCP_CLOSED,
 	LLCP_BOUND,
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 47e7acf..d308402 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -571,7 +571,7 @@ static unsigned int llcp_sock_poll(struct file *file, struct socket *sock,
 	if (sk->sk_shutdown == SHUTDOWN_MASK)
 		mask |= POLLHUP;
 
-	if (sock_writeable(sk))
+	if (sock_writeable(sk) && sk->sk_state == LLCP_CONNECTED)
 		mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
 	else
 		set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
@@ -729,14 +729,16 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
 	if (ret)
 		goto sock_unlink;
 
+	sk->sk_state = LLCP_CONNECTING;
+
 	ret = sock_wait_state(sk, LLCP_CONNECTED,
 			      sock_sndtimeo(sk, flags & O_NONBLOCK));
-	if (ret)
+	if (ret && ret != -EINPROGRESS)
 		goto sock_unlink;
 
 	release_sock(sk);
 
-	return 0;
+	return ret;
 
 sock_unlink:
 	nfc_llcp_put_ssap(local, llcp_sock->ssap);
-- 
cgit v0.10.2


From 2635a4bdfa8d513c531fa7d7a0ccafc1d6a9ff85 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Tue, 28 May 2013 15:03:17 +0200
Subject: NFC: llcp: Do not send pending Tx frames when the remote is not ready

When we receive a RNR, the remote is busy processing the last received
frame. We set a local flag for that, and we should send a SYMM when it
is set instead of sending any pending frame.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index 44730f0..47746a0 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -721,6 +721,9 @@ static void nfc_llcp_tx_work(struct work_struct *work)
 		if (llcp_sock == NULL && nfc_llcp_ptype(skb) == LLCP_PDU_I) {
 			kfree_skb(skb);
 			nfc_llcp_send_symm(local->dev);
+		} else if (llcp_sock && !llcp_sock->remote_ready) {
+			skb_queue_head(&local->tx_queue, skb);
+			nfc_llcp_send_symm(local->dev);
 		} else {
 			struct sk_buff *copy_skb = NULL;
 			u8 ptype = nfc_llcp_ptype(skb);
-- 
cgit v0.10.2


From f768b34017cbe6e7690686514f682f076bb1f477 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Tue, 28 May 2013 15:41:32 +0200
Subject: NFC: llcp: Set the LLC Link Management well known service bit

In order to advertise our LLCP support properly and to follow the LLCP
specs requirements, we need to initialize the WKS (Well-Known Services)
bitfield to 1 as SAP 0 is the only mandatory supported service.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index 47746a0..d45bcbb 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -1590,6 +1590,7 @@ int nfc_llcp_register_device(struct nfc_dev *ndev)
 	local->lto = 150; /* 1500 ms */
 	local->rw = LLCP_MAX_RW;
 	local->miux = cpu_to_be16(LLCP_MAX_MIUX);
+	local->local_wks = 0x1; /* LLC Link Management */
 
 	nfc_llcp_build_gb(local);
 
-- 
cgit v0.10.2


From 4ca546e5545b7345b69e9331ecd53a1e4c6f7fe1 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Mon, 3 Jun 2013 12:10:04 +0200
Subject: NFC: llcp: Fix the well known services endianness

The WKS (Well Known Services) bitmask should be transmitted in big endian
order. Picky implementations will refuse to establish an LLCP link when the
WKS bit 0 is not set to 1. The vast majority of implementations out there
are not that picky though...

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index d45bcbb..81cd341 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -537,6 +537,7 @@ static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
 	u8 *lto_tlv, lto_length;
 	u8 *wks_tlv, wks_length;
 	u8 *miux_tlv, miux_length;
+	__be16 wks = cpu_to_be16(local->local_wks);
 	u8 gb_len = 0;
 	int ret = 0;
 
@@ -549,8 +550,7 @@ static int nfc_llcp_build_gb(struct nfc_llcp_local *local)
 	gb_len += lto_length;
 
 	pr_debug("Local wks 0x%lx\n", local->local_wks);
-	wks_tlv = nfc_llcp_build_tlv(LLCP_TLV_WKS, (u8 *)&local->local_wks, 2,
-				     &wks_length);
+	wks_tlv = nfc_llcp_build_tlv(LLCP_TLV_WKS, (u8 *)&wks, 2, &wks_length);
 	gb_len += wks_length;
 
 	miux_tlv = nfc_llcp_build_tlv(LLCP_TLV_MIUX, (u8 *)&local->miux, 0,
-- 
cgit v0.10.2


From bda7eb27635c4d7414fb05a5f55501b71f436cc0 Mon Sep 17 00:00:00 2001
From: Valentin Ilie <valentin.ilie@gmail.com>
Date: Fri, 7 Jun 2013 22:01:55 +0300
Subject: NFC: mei_phy: Clean up file

Fix checkpatch warnings.
Replace __attribute__((__packed__)) with __packed.
Replace spaces with tabs.

Signed-off-by: Valentin Ilie <valentin.ilie@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/nfc/mei_phy.c b/drivers/nfc/mei_phy.c
index 1201bdb..606bf55 100644
--- a/drivers/nfc/mei_phy.c
+++ b/drivers/nfc/mei_phy.c
@@ -30,7 +30,7 @@ struct mei_nfc_hdr {
 	u16 req_id;
 	u32 reserved;
 	u16 data_size;
-} __attribute__((packed));
+} __packed;
 
 #define MEI_NFC_MAX_READ (MEI_NFC_HEADER_SIZE + MEI_NFC_MAX_HCI_PAYLOAD)
 
@@ -60,8 +60,8 @@ int nfc_mei_phy_enable(void *phy_id)
 
 	r = mei_cl_enable_device(phy->device);
 	if (r < 0) {
-                pr_err("MEI_PHY: Could not enable device\n");
-                return r;
+		pr_err("MEI_PHY: Could not enable device\n");
+		return r;
 	}
 
 	r = mei_cl_register_event_cb(phy->device, nfc_mei_event_cb, phy);
-- 
cgit v0.10.2


From 9b60b64bfe98b9cc01b21e6126819b11a0f0a971 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Thu, 13 Jun 2013 22:51:26 +0530
Subject: ath9k: Add custom parameters for CUS198

CUS198 is a card based on AR9485. There are differences
between the base reference design HB125 and CUS198.
Identify such cards based on the PCI subsystem IDs and
set HW parameters appropriately.

Addresses this bug - https://bugzilla.kernel.org/show_bug.cgi?id=49201

Cc: jkp@iki.fi
Cc: gfmichaud@gmail.com
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 25b8bbb..9a00bc0 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3563,16 +3563,22 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 {
 	struct ath9k_hw_capabilities *pCap = &ah->caps;
 	int chain;
-	u32 regval, value;
+	u32 regval, value, gpio;
 	static const u32 switch_chain_reg[AR9300_MAX_CHAINS] = {
 			AR_PHY_SWITCH_CHAIN_0,
 			AR_PHY_SWITCH_CHAIN_1,
 			AR_PHY_SWITCH_CHAIN_2,
 	};
 
-	if (AR_SREV_9485(ah) && (ar9003_hw_get_rx_gain_idx(ah) == 0))
+	if (AR_SREV_9485(ah) && (ar9003_hw_get_rx_gain_idx(ah) == 0)) {
+		if (ah->config.xlna_gpio)
+			gpio = ah->config.xlna_gpio;
+		else
+			gpio = AR9300_EXT_LNA_CTL_GPIO_AR9485;
+
 		ath9k_hw_cfg_output(ah, AR9300_EXT_LNA_CTL_GPIO_AR9485,
 				    AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED);
+	}
 
 	value = ar9003_hw_ant_ctrl_common_get(ah, is2ghz);
 
@@ -3800,7 +3806,13 @@ static void ar9003_hw_atten_apply(struct ath_hw *ah, struct ath9k_channel *chan)
 			REG_RMW_FIELD(ah, ext_atten_reg[i],
 				      AR_PHY_EXT_ATTEN_CTL_XATTEN1_DB, value);
 
-			value = ar9003_hw_atten_chain_get_margin(ah, i, chan);
+			if (AR_SREV_9485(ah) &&
+			    (ar9003_hw_get_rx_gain_idx(ah) == 0) &&
+			    ah->config.xatten_margin_cfg)
+				value = 5;
+			else
+				value = ar9003_hw_atten_chain_get_margin(ah, i, chan);
+
 			REG_RMW_FIELD(ah, ext_atten_reg[i],
 				      AR_PHY_EXT_ATTEN_CTL_XATTEN1_MARGIN,
 				      value);
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index a6e666b..74965ee 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -631,6 +631,8 @@ void ath_ant_comb_update(struct ath_softc *sc);
 /* Main driver core */
 /********************/
 
+#define ATH9K_PCI_CUS198 0x0001
+
 /*
  * Default cache line size, in bytes.
  * Used when PCI device not fully initialized by bootrom/BIOS
@@ -715,6 +717,7 @@ struct ath_softc {
 
 	unsigned int hw_busy_count;
 	unsigned long sc_flags;
+	unsigned long driver_data;
 
 	u32 intrstatus;
 	u16 ps_flags; /* PS_* */
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 7d259b7..ed7d4fc 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -307,6 +307,10 @@ struct ath9k_ops_config {
 	u16 spurchans[AR_EEPROM_MODAL_SPURS][2];
 	u8 max_txtrig_level;
 	u16 ani_poll_interval; /* ANI poll interval in ms */
+
+	/* Platform specific config */
+	u32 xlna_gpio;
+	bool xatten_margin_cfg;
 };
 
 enum ath9k_int {
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 818f22d..7c2ed1c 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -513,6 +513,22 @@ static void ath9k_init_misc(struct ath_softc *sc)
 	sc->spec_config.fft_period = 0xF;
 }
 
+static void ath9k_init_platform(struct ath_softc *sc)
+{
+	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	if (common->bus_ops->ath_bus_type != ATH_PCI)
+		return;
+
+	if (sc->driver_data & ATH9K_PCI_CUS198) {
+		ah->config.xlna_gpio = 9;
+		ah->config.xatten_margin_cfg = true;
+
+		ath_info(common, "Set parameters for CUS198\n");
+	}
+}
+
 static void ath9k_eeprom_request_cb(const struct firmware *eeprom_blob,
 				    void *ctx)
 {
@@ -605,6 +621,11 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	common->disable_ani = false;
 
 	/*
+	 * Platform quirks.
+	 */
+	ath9k_init_platform(sc);
+
+	/*
 	 * Enable Antenna diversity only when BTCOEX is disabled
 	 * and the user manually requests the feature.
 	 */
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 0e0d395..4ac00b4 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -34,6 +34,34 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 	{ PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI   */
 	{ PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */
 	{ PCI_VDEVICE(ATHEROS, 0x0030) }, /* PCI-E  AR9300 */
+
+	/* PCI-E CUS198 */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2086),
+	  .driver_data = ATH9K_PCI_CUS198 },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x1237),
+	  .driver_data = ATH9K_PCI_CUS198 },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2126),
+	  .driver_data = ATH9K_PCI_CUS198 },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2152),
+	  .driver_data = ATH9K_PCI_CUS198 },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_FOXCONN,
+			 0xE075),
+	  .driver_data = ATH9K_PCI_CUS198 },
+
 	{ PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E  AR9485 */
 	{ PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E  AR9580 */
 	{ PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
@@ -221,6 +249,7 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	sc->hw = hw;
 	sc->dev = &pdev->dev;
 	sc->mem = pcim_iomap_table(pdev)[0];
+	sc->driver_data = id->driver_data;
 
 	/* Will be cleared in ath9k_start() */
 	set_bit(SC_OP_INVALID, &sc->sc_flags);
-- 
cgit v0.10.2


From 1105a13bb8ad29cf83d46989ee462d196038be87 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Fri, 14 Jun 2013 00:26:11 +0400
Subject: orinoco_usb: fix memory leak in ezusb_access_ltv() when device
 disconnected

If "device is disconnected" check occurs to be true in ezusb_access_ltv(),
it just return -ENODEV. But that means request_context is leaked since
there are no any references to it anymore.
The patch adds a call to ezusb_request_context_put() before return.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/orinoco/orinoco_usb.c b/drivers/net/wireless/orinoco/orinoco_usb.c
index 1f9cb55..bdfe637 100644
--- a/drivers/net/wireless/orinoco/orinoco_usb.c
+++ b/drivers/net/wireless/orinoco/orinoco_usb.c
@@ -881,7 +881,8 @@ static int ezusb_access_ltv(struct ezusb_priv *upriv,
 
 	if (!upriv->udev) {
 		dbg("Device disconnected");
-		return -ENODEV;
+		retval = -ENODEV;
+		goto exit;
 	}
 
 	if (upriv->read_urb->status != -EINPROGRESS)
-- 
cgit v0.10.2


From f44f340883388b57fe03edfb0982e038e57a992c Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Mon, 13 May 2013 08:15:26 -0700
Subject: openvswitch: Immediately exit on error in ovs_vport_cmd_set().

It is an error to try to change the type of a vport using the set
command. However, while we check that this is an error, we still
proceed to allocate memory which then gets freed immediately.
This stops processing after noticing the error, which does not
actually fix a bug but is more correct.

Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index d12d6b8..748aa97 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -1812,10 +1812,11 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
 	if (IS_ERR(vport))
 		goto exit_unlock;
 
-	err = 0;
 	if (a[OVS_VPORT_ATTR_TYPE] &&
-	    nla_get_u32(a[OVS_VPORT_ATTR_TYPE]) != vport->ops->type)
+	    nla_get_u32(a[OVS_VPORT_ATTR_TYPE]) != vport->ops->type) {
 		err = -EINVAL;
+		goto exit_unlock;
+	}
 
 	reply = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!reply) {
@@ -1823,10 +1824,11 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
 		goto exit_unlock;
 	}
 
-	if (!err && a[OVS_VPORT_ATTR_OPTIONS])
+	if (a[OVS_VPORT_ATTR_OPTIONS]) {
 		err = ovs_vport_set_options(vport, a[OVS_VPORT_ATTR_OPTIONS]);
-	if (err)
-		goto exit_free;
+		if (err)
+			goto exit_free;
+	}
 
 	if (a[OVS_VPORT_ATTR_UPCALL_PID])
 		vport->upcall_portid = nla_get_u32(a[OVS_VPORT_ATTR_UPCALL_PID]);
-- 
cgit v0.10.2


From cbd531bebb02bc6c0fc3619a2cfc32f7d8843b18 Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Mon, 13 May 2013 08:16:29 -0700
Subject: openvswitch: Remove unused get_config vport op.

The get_config vport op is left over from old compatibility code,
it is neither used nor implemented any more.

Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/net/openvswitch/vport-netdev.h b/net/openvswitch/vport-netdev.h
index a3cb3a3..dd298b5 100644
--- a/net/openvswitch/vport-netdev.h
+++ b/net/openvswitch/vport-netdev.h
@@ -39,6 +39,5 @@ netdev_vport_priv(const struct vport *vport)
 }
 
 const char *ovs_netdev_get_name(const struct vport *);
-const char *ovs_netdev_get_config(const struct vport *);
 
 #endif /* vport_netdev.h */
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index 68a377b..26c594b 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -123,8 +123,6 @@ struct vport_parms {
  * existing vport to a &struct sk_buff.  May be %NULL for a vport that does not
  * have any configuration.
  * @get_name: Get the device's name.
- * @get_config: Get the device's configuration.
- * May be null if the device does not have an ifindex.
  * @send: Send a packet on the device.  Returns the length of the packet sent.
  */
 struct vport_ops {
@@ -139,7 +137,6 @@ struct vport_ops {
 
 	/* Called with rcu_read_lock or ovs_mutex. */
 	const char *(*get_name)(const struct vport *);
-	void (*get_config)(const struct vport *, void *);
 
 	int (*send)(struct vport *, struct sk_buff *);
 };
-- 
cgit v0.10.2


From 91b7514cdff406ad8f63d09b74f664c37bed2e01 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 13 May 2013 08:22:34 -0700
Subject: openvswitch: Unify vport error stats handling.

Following patch changes vport->send return type so that vport
layer can do error accounting.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 4f01c6d..4371221 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -170,7 +170,7 @@ static int netdev_send(struct vport *vport, struct sk_buff *skb)
 		net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
 				     netdev_vport->dev->name,
 				     packet_length(skb), mtu);
-		goto error;
+		goto drop;
 	}
 
 	skb->dev = netdev_vport->dev;
@@ -179,9 +179,8 @@ static int netdev_send(struct vport *vport, struct sk_buff *skb)
 
 	return len;
 
-error:
+drop:
 	kfree_skb(skb);
-	ovs_vport_record_error(vport, VPORT_E_TX_DROPPED);
 	return 0;
 }
 
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 7206231..7f20f6d 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -351,7 +351,7 @@ int ovs_vport_send(struct vport *vport, struct sk_buff *skb)
 {
 	int sent = vport->ops->send(vport, skb);
 
-	if (likely(sent)) {
+	if (likely(sent > 0)) {
 		struct pcpu_tstats *stats;
 
 		stats = this_cpu_ptr(vport->percpu_stats);
@@ -360,7 +360,12 @@ int ovs_vport_send(struct vport *vport, struct sk_buff *skb)
 		stats->tx_packets++;
 		stats->tx_bytes += sent;
 		u64_stats_update_end(&stats->syncp);
-	}
+	} else if (sent < 0) {
+		ovs_vport_record_error(vport, VPORT_E_TX_ERROR);
+		kfree_skb(skb);
+	} else
+		ovs_vport_record_error(vport, VPORT_E_TX_DROPPED);
+
 	return sent;
 }
 
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index 26c594b..1cef5cd 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -123,7 +123,8 @@ struct vport_parms {
  * existing vport to a &struct sk_buff.  May be %NULL for a vport that does not
  * have any configuration.
  * @get_name: Get the device's name.
- * @send: Send a packet on the device.  Returns the length of the packet sent.
+ * @send: Send a packet on the device.  Returns the length of the packet sent,
+ * zero for dropped packets or negative for error.
  */
 struct vport_ops {
 	enum ovs_vport_type type;
-- 
cgit v0.10.2


From 34d94f2102fb361030569eb983751ed80742f6e9 Mon Sep 17 00:00:00 2001
From: Lorand Jakab <lojakab@cisco.com>
Date: Mon, 3 Jun 2013 10:01:14 -0700
Subject: openvswitch: fix variable names in comment

Signed-off-by: Lorand Jakab <lojakab@cisco.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index b15321a..33df091 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -590,10 +590,10 @@ out:
  *    - skb->network_header: just past the Ethernet header, or just past the
  *      VLAN header, to the first byte of the Ethernet payload.
  *
- *    - skb->transport_header: If key->dl_type is ETH_P_IP or ETH_P_IPV6
+ *    - skb->transport_header: If key->eth.type is ETH_P_IP or ETH_P_IPV6
  *      on output, then just past the IP header, if one is present and
  *      of a correct length, otherwise the same as skb->network_header.
- *      For other key->dl_type values it is left untouched.
+ *      For other key->eth.type values it is left untouched.
  */
 int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key,
 		 int *key_lenp)
-- 
cgit v0.10.2


From af7841636bb29575fe27faaeb351146e87217717 Mon Sep 17 00:00:00 2001
From: Andy Hill <hillad@gmail.com>
Date: Fri, 7 Jun 2013 16:53:50 -0700
Subject: openvswitch: Fix misspellings in comments and docs.

Flagged with: https://github.com/lyda/misspell-check
Run with: git ls-files | misspellings -f -

Signed-off-by: Andy Hill <hillad@gmail.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 7f20f6d..176d449 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -376,7 +376,7 @@ int ovs_vport_send(struct vport *vport, struct sk_buff *skb)
  * @err_type: one of enum vport_err_type types to indicate the error type
  *
  * If using the vport generic stats layer indicate that an error of the given
- * type has occured.
+ * type has occurred.
  */
 void ovs_vport_record_error(struct vport *vport, enum vport_err_type err_type)
 {
-- 
cgit v0.10.2


From 45bfa52e36ef016b789eca73c7847db3f7b4742d Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Wed, 12 Jun 2013 15:57:10 -0700
Subject: openvswitch: Fix struct comment.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 405918d..424672d 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -192,7 +192,6 @@ enum ovs_vport_type {
  * optional; if not specified a free port number is automatically selected.
  * Whether %OVS_VPORT_ATTR_OPTIONS is required or optional depends on the type
  * of vport.
- * and other attributes are ignored.
  *
  * For other requests, if %OVS_VPORT_ATTR_NAME is specified then it is used to
  * look up the vport to operate on; otherwise dp_idx from the &struct
-- 
cgit v0.10.2


From b34df5e805a6e98cae0bc5bc80c1b52d9ff811de Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Thu, 13 Jun 2013 11:11:44 -0700
Subject: openvswitch: make skb->csum consistent with rest of networking stack.

Following patch keeps skb->csum correct across ovs.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 894b6cb..596d637 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -130,9 +130,13 @@ static int set_eth_addr(struct sk_buff *skb,
 	if (unlikely(err))
 		return err;
 
+	skb_postpull_rcsum(skb, eth_hdr(skb), ETH_ALEN * 2);
+
 	memcpy(eth_hdr(skb)->h_source, eth_key->eth_src, ETH_ALEN);
 	memcpy(eth_hdr(skb)->h_dest, eth_key->eth_dst, ETH_ALEN);
 
+	ovs_skb_postpush_rcsum(skb, eth_hdr(skb), ETH_ALEN * 2);
+
 	return 0;
 }
 
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 33df091..fca4833 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -618,6 +618,9 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key,
 	memcpy(key->eth.dst, eth->h_dest, ETH_ALEN);
 
 	__skb_pull(skb, 2 * ETH_ALEN);
+	/* We are going to push all headers that we pull, so no need to
+	 * update skb->csum here.
+	 */
 
 	if (vlan_tx_tag_present(skb))
 		key->eth.tci = htons(skb->vlan_tci);
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 84e0a03..e284c7e 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -221,6 +221,7 @@ static int internal_dev_recv(struct vport *vport, struct sk_buff *skb)
 	skb->dev = netdev;
 	skb->pkt_type = PACKET_HOST;
 	skb->protocol = eth_type_trans(skb, netdev);
+	skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
 
 	netif_rx(skb);
 
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 4371221..40de815 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -49,6 +49,8 @@ static void netdev_port_receive(struct vport *vport, struct sk_buff *skb)
 		return;
 
 	skb_push(skb, ETH_HLEN);
+	ovs_skb_postpush_rcsum(skb, skb->data, ETH_HLEN);
+
 	ovs_vport_receive(vport, skb);
 	return;
 
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index 1cef5cd..293278c 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -192,4 +192,11 @@ void ovs_vport_record_error(struct vport *, enum vport_err_type err_type);
 extern const struct vport_ops ovs_netdev_vport_ops;
 extern const struct vport_ops ovs_internal_vport_ops;
 
+static inline void ovs_skb_postpush_rcsum(struct sk_buff *skb,
+				      const void *start, unsigned int len)
+{
+	if (skb->ip_summed == CHECKSUM_COMPLETE)
+		skb->csum = csum_add(skb->csum, csum_partial(start, len, 0));
+}
+
 #endif /* vport.h */
-- 
cgit v0.10.2


From 93d8fd1514b6862c3370ea92be3f3b4216e0bf8f Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Thu, 13 Jun 2013 11:11:32 -0700
Subject: openvswitch: Simplify interface ovs_flow_metadata_from_nlattrs()

This is not functional change, this is just code cleanup.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 748aa97..0f783d9 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -739,10 +739,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto err_flow_free;
 
-	err = ovs_flow_metadata_from_nlattrs(&flow->key.phy.priority,
-					     &flow->key.phy.skb_mark,
-					     &flow->key.phy.in_port,
-					     a[OVS_PACKET_ATTR_KEY]);
+	err = ovs_flow_metadata_from_nlattrs(flow, a[OVS_PACKET_ATTR_KEY]);
 	if (err)
 		goto err_flow_free;
 
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index fca4833..093c191 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -1125,10 +1125,8 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 
 /**
  * ovs_flow_metadata_from_nlattrs - parses Netlink attributes into a flow key.
- * @priority: receives the skb priority
- * @mark: receives the skb mark
- * @in_port: receives the extracted input port.
- * @key: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
+ * @flow: Receives extracted in_port, priority, tun_key and skb_mark.
+ * @attr: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
  * sequence.
  *
  * This parses a series of Netlink attributes that form a flow key, which must
@@ -1136,15 +1134,15 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
  * get the metadata, that is, the parts of the flow key that cannot be
  * extracted from the packet itself.
  */
-int ovs_flow_metadata_from_nlattrs(u32 *priority, u32 *mark, u16 *in_port,
-			       const struct nlattr *attr)
+int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
+				   const struct nlattr *attr)
 {
 	const struct nlattr *nla;
 	int rem;
 
-	*in_port = DP_MAX_PORTS;
-	*priority = 0;
-	*mark = 0;
+	flow->key.phy.in_port = DP_MAX_PORTS;
+	flow->key.phy.priority = 0;
+	flow->key.phy.skb_mark = 0;
 
 	nla_for_each_nested(nla, attr, rem) {
 		int type = nla_type(nla);
@@ -1155,17 +1153,17 @@ int ovs_flow_metadata_from_nlattrs(u32 *priority, u32 *mark, u16 *in_port,
 
 			switch (type) {
 			case OVS_KEY_ATTR_PRIORITY:
-				*priority = nla_get_u32(nla);
+				flow->key.phy.priority = nla_get_u32(nla);
 				break;
 
 			case OVS_KEY_ATTR_IN_PORT:
 				if (nla_get_u32(nla) >= DP_MAX_PORTS)
 					return -EINVAL;
-				*in_port = nla_get_u32(nla);
+				flow->key.phy.in_port = nla_get_u32(nla);
 				break;
 
 			case OVS_KEY_ATTR_SKB_MARK:
-				*mark = nla_get_u32(nla);
+				flow->key.phy.skb_mark = nla_get_u32(nla);
 				break;
 			}
 		}
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 0875fde..2a83e21 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -141,8 +141,8 @@ u64 ovs_flow_used_time(unsigned long flow_jiffies);
 int ovs_flow_to_nlattrs(const struct sw_flow_key *, struct sk_buff *);
 int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 		      const struct nlattr *);
-int ovs_flow_metadata_from_nlattrs(u32 *priority, u32 *mark, u16 *in_port,
-			       const struct nlattr *);
+int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
+				  const struct nlattr *attr);
 
 #define MAX_ACTIONS_BUFSIZE    (16 * 1024)
 #define TBL_MIN_BUCKETS		1024
-- 
cgit v0.10.2


From f9e42b853523cda0732022c2e0473c183f7aec65 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 14 Jun 2013 18:24:04 +0200
Subject: net: sctp: sideeffect: throw BUG if primary_path is NULL

This clearly states a BUG somewhere in the SCTP code as e.g. fixed once
in f28156335 ("sctp: Use correct sideffect command in duplicate cookie
handling"). If this ever happens, throw a trace in the sideeffect engine
where assocs clearly must have a primary_path assigned.

When in sctp_seq_dump_local_addrs() also throw a WARN and bail out since
we do not need to panic for printing this one asterisk. Also, it will
avoid the not so obvious case when primary != NULL test passes and at a
later point in time triggering a NULL ptr dereference caused by primary.
While at it, also fix up the white space.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index 4e45ee3..0c83162 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -134,9 +134,15 @@ static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_commo
 	struct sctp_af *af;
 
 	if (epb->type == SCTP_EP_TYPE_ASSOCIATION) {
-	    asoc = sctp_assoc(epb);
-	    peer = asoc->peer.primary_path;
-	    primary = &peer->saddr;
+		asoc = sctp_assoc(epb);
+
+		peer = asoc->peer.primary_path;
+		if (unlikely(peer == NULL)) {
+			WARN(1, "Association %p with NULL primary path!", asoc);
+			return;
+		}
+
+		primary = &peer->saddr;
 	}
 
 	rcu_read_lock();
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 8aab894..ff91f47 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -864,6 +864,7 @@ static void sctp_cmd_delete_tcb(sctp_cmd_seq_t *cmds,
 	    (!asoc->temp) && (sk->sk_shutdown != SHUTDOWN_MASK))
 		return;
 
+	BUG_ON(asoc->peer.primary_path == NULL);
 	sctp_unhash_established(asoc);
 	sctp_association_free(asoc);
 }
@@ -1274,8 +1275,10 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 				sctp_outq_uncork(&asoc->outqueue);
 				local_cork = 0;
 			}
-			asoc = cmd->obj.asoc;
+
 			/* Register with the endpoint.  */
+			asoc = cmd->obj.asoc;
+			BUG_ON(asoc->peer.primary_path == NULL);
 			sctp_endpoint_add_asoc(ep, asoc);
 			sctp_hash_established(asoc);
 			break;
-- 
cgit v0.10.2


From 405426f6ca8ac2d8d5b1f8eb9285452d44222781 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 14 Jun 2013 18:24:05 +0200
Subject: net: sctp: sctp_sf_do_prm_asoc: do SCTP_CMD_INIT_CHOOSE_TRANSPORT
 first

While this currently cannot trigger any NULL pointer dereference in
sctp_seq_dump_local_addrs(), better change the order of commands to
prevent a future bug to happen. Although we first add SCTP_CMD_NEW_ASOC
and then set the SCTP_CMD_INIT_CHOOSE_TRANSPORT, it is okay for now,
since this primitive is only called by sctp_connect() or sctp_sendmsg()
with sctp_assoc_add_peer() set first. However, lets do this precaution
and first set the transport and then add it to the association hashlist
to prevent in future something to possibly triggering this.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index de1a013..b3d1868 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -4632,16 +4632,16 @@ sctp_disposition_t sctp_sf_do_prm_asoc(struct net *net,
 	if (!repl)
 		goto nomem;
 
+	/* Choose transport for INIT. */
+	sctp_add_cmd_sf(commands, SCTP_CMD_INIT_CHOOSE_TRANSPORT,
+			SCTP_CHUNK(repl));
+
 	/* Cast away the const modifier, as we want to just
 	 * rerun it through as a sideffect.
 	 */
 	my_asoc = (struct sctp_association *)asoc;
 	sctp_add_cmd_sf(commands, SCTP_CMD_NEW_ASOC, SCTP_ASOC(my_asoc));
 
-	/* Choose transport for INIT. */
-	sctp_add_cmd_sf(commands, SCTP_CMD_INIT_CHOOSE_TRANSPORT,
-			SCTP_CHUNK(repl));
-
 	/* After sending the INIT, "A" starts the T1-init timer and
 	 * enters the COOKIE-WAIT state.
 	 */
-- 
cgit v0.10.2


From c164b8381496ca797c37671fe510a264412ccae5 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 14 Jun 2013 18:24:06 +0200
Subject: net: sctp: minor: remove variable in sctp_init_sock

It's only used at this one time, so we could remove it as well.
This is valid and also makes it more explicit/obvious that in case
of error the sp->ep is NULL here, i.e. for the sctp_destroy_sock()
check that was recently added.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index f631c5f..510dc79 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -3862,7 +3862,6 @@ out:
 SCTP_STATIC int sctp_init_sock(struct sock *sk)
 {
 	struct net *net = sock_net(sk);
-	struct sctp_endpoint *ep;
 	struct sctp_sock *sp;
 
 	SCTP_DEBUG_PRINTK("sctp_init_sock(sk: %p)\n", sk);
@@ -3971,11 +3970,10 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
 	 * change the data structure relationships, this may still
 	 * be useful for storing pre-connect address information.
 	 */
-	ep = sctp_endpoint_new(sk, GFP_KERNEL);
-	if (!ep)
+	sp->ep = sctp_endpoint_new(sk, GFP_KERNEL);
+	if (!sp->ep)
 		return -ENOMEM;
 
-	sp->ep = ep;
 	sp->hmac = NULL;
 
 	SCTP_DBG_OBJCNT_INC(sock);
-- 
cgit v0.10.2


From 2e0c9e7911465b29daf85f7de97949004bf7b31c Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 14 Jun 2013 18:24:07 +0200
Subject: net: sctp: sctp_association_init: put refs in reverse order

In case we need to bail out for whatever reason during assoc
init, we call sctp_endpoint_put() and then sock_put(), however,
we've hold both refs in reverse, non-symmetric order, so first
sctp_endpoint_hold() and then sock_hold().

Reverse this, so that in an error case we have sock_put() and then
sctp_endpoint_put(). Actually shouldn't matter too much, since both
cleanup paths do the right thing, but that way, it is more consistent
with the rest of the code.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 91cfd8f..756025c 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -86,10 +86,9 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
 
 	/* Discarding const is appropriate here.  */
 	asoc->ep = (struct sctp_endpoint *)ep;
-	sctp_endpoint_hold(asoc->ep);
-
-	/* Hold the sock.  */
 	asoc->base.sk = (struct sock *)sk;
+
+	sctp_endpoint_hold(asoc->ep);
 	sock_hold(asoc->base.sk);
 
 	/* Initialize the common base substructure.  */
@@ -343,8 +342,8 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
 	return asoc;
 
 fail_init:
-	sctp_endpoint_put(asoc->ep);
 	sock_put(asoc->base.sk);
+	sctp_endpoint_put(asoc->ep);
 	return NULL;
 }
 
-- 
cgit v0.10.2


From e3b8bbb9e81536f19d6e0b2c6e8186db47dfd426 Mon Sep 17 00:00:00 2001
From: Ido Reis <idor@ti.com>
Date: Tue, 27 Nov 2012 08:44:51 +0200
Subject: wl18xx: FDSP Code RAM Corruption fix

In PG2.0 there is an issue where PHY's FDSP Code RAM sometimes gets
corrupted when exiting from ELP mode. This issue is related to FDSP
Code RAM clock implementation.

PG2.1 introduces a HW fix for this issue that requires the driver to
change the FDSP Code Ram clock settings (mux it to ATGP clock instead
of its own clock).

This workaround uses PHY_FPGA_SPARE_1 register and is relevant to WL8
PG2.1 devices.

The fix is also backward compatible with older PG2.0 devices where the
register PHY_FPGA_SPARE_1 is not used and not connected.

The fix is done in the wl18xx_pre_upload function (must be performed
before uploading the FW code) and includes the following steps:

1. Disable FDSP clock
2. Set ATPG clock toward FDSP Code RAM rather than its own clock.
3. Re-enable FDSP clock

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 9fa692d..ae85ae4 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -594,8 +594,8 @@ static const struct wlcore_partition_set wl18xx_ptable[PART_TABLE_LEN] = {
 		.mem3 = { .start = 0x00000000, .size  = 0x00000000 },
 	},
 	[PART_PHY_INIT] = {
-		.mem  = { .start = 0x80926000,
-			  .size = sizeof(struct wl18xx_mac_and_phy_params) },
+		.mem  = { .start = WL18XX_PHY_INIT_MEM_ADDR,
+			  .size  = WL18XX_PHY_INIT_MEM_SIZE },
 		.reg  = { .start = 0x00000000, .size = 0x00000000 },
 		.mem2 = { .start = 0x00000000, .size = 0x00000000 },
 		.mem3 = { .start = 0x00000000, .size = 0x00000000 },
@@ -799,6 +799,9 @@ static int wl18xx_pre_upload(struct wl1271 *wl)
 	u32 tmp;
 	int ret;
 
+	BUILD_BUG_ON(sizeof(struct wl18xx_mac_and_phy_params) >
+		WL18XX_PHY_INIT_MEM_SIZE);
+
 	ret = wlcore_set_partition(wl, &wl->ptable[PART_BOOT]);
 	if (ret < 0)
 		goto out;
@@ -815,6 +818,35 @@ static int wl18xx_pre_upload(struct wl1271 *wl)
 	wl1271_debug(DEBUG_BOOT, "chip id 0x%x", tmp);
 
 	ret = wlcore_read32(wl, WL18XX_SCR_PAD2, &tmp);
+	if (ret < 0)
+		goto out;
+
+	/*
+	 * Workaround for FDSP code RAM corruption (needed for PG2.1
+	 * and newer; for older chips it's a NOP).  Change FDSP clock
+	 * settings so that it's muxed to the ATGP clock instead of
+	 * its own clock.
+	 */
+
+	ret = wlcore_set_partition(wl, &wl->ptable[PART_PHY_INIT]);
+	if (ret < 0)
+		goto out;
+
+	/* disable FDSP clock */
+	ret = wlcore_write32(wl, WL18XX_PHY_FPGA_SPARE_1,
+			     MEM_FDSP_CLK_120_DISABLE);
+	if (ret < 0)
+		goto out;
+
+	/* set ATPG clock toward FDSP Code RAM rather than its own clock */
+	ret = wlcore_write32(wl, WL18XX_PHY_FPGA_SPARE_1,
+			     MEM_FDSP_CODERAM_FUNC_CLK_SEL);
+	if (ret < 0)
+		goto out;
+
+	/* re-enable FDSP clock */
+	ret = wlcore_write32(wl, WL18XX_PHY_FPGA_SPARE_1,
+			     MEM_FDSP_CLK_120_ENABLE);
 
 out:
 	return ret;
diff --git a/drivers/net/wireless/ti/wl18xx/reg.h b/drivers/net/wireless/ti/wl18xx/reg.h
index 6306e04..05dd8ba 100644
--- a/drivers/net/wireless/ti/wl18xx/reg.h
+++ b/drivers/net/wireless/ti/wl18xx/reg.h
@@ -38,6 +38,9 @@
 #define WL18XX_REG_BOOT_PART_SIZE  0x00014578
 
 #define WL18XX_PHY_INIT_MEM_ADDR   0x80926000
+#define WL18XX_PHY_END_MEM_ADDR	   0x8093CA44
+#define WL18XX_PHY_INIT_MEM_SIZE \
+	(WL18XX_PHY_END_MEM_ADDR - WL18XX_PHY_INIT_MEM_ADDR)
 
 #define WL18XX_SDIO_WSPI_BASE		(WL18XX_REGISTERS_BASE)
 #define WL18XX_REG_CONFIG_BASE		(WL18XX_REGISTERS_BASE + 0x02000)
@@ -217,4 +220,16 @@ static const char * const rdl_names[] = {
 	[RDL_4_SP]	= "1897 MIMO",
 };
 
+/* FPGA_SPARE_1 register - used to change the PHY ATPG clock at boot time */
+#define WL18XX_PHY_FPGA_SPARE_1		0x8093CA40
+
+/* command to disable FDSP clock */
+#define MEM_FDSP_CLK_120_DISABLE        0x80000000
+
+/* command to set ATPG clock toward FDSP Code RAM rather than its own clock */
+#define MEM_FDSP_CODERAM_FUNC_CLK_SEL	0xC0000000
+
+/* command to re-enable FDSP clock */
+#define MEM_FDSP_CLK_120_ENABLE		0x40000000
+
 #endif /* __REG_H__ */
-- 
cgit v0.10.2


From 8f6ac537b50077b3f2b0e926b661a064dc136a2a Mon Sep 17 00:00:00 2001
From: Luciano Coelho <coelho@ti.com>
Date: Sat, 4 May 2013 01:06:11 +0300
Subject: wlcore: some non-functional clean-ups in main.c

Remove unnecessary includes; remove duplicate and useless defines; fix
copyright notice and remove some unnecessary line breaks.

Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 796928b..32d877f 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -1,10 +1,9 @@
 
 /*
- * This file is part of wl1271
+ * This file is part of wlcore
  *
  * Copyright (C) 2008-2010 Nokia Corporation
- *
- * Contact: Luciano Coelho <luciano.coelho@nokia.com>
+ * Copyright (C) 2011-2013 Texas Instruments Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,37 +23,25 @@
 
 #include <linux/module.h>
 #include <linux/firmware.h>
-#include <linux/delay.h>
-#include <linux/spi/spi.h>
-#include <linux/crc32.h>
 #include <linux/etherdevice.h>
 #include <linux/vmalloc.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
 #include <linux/wl12xx.h>
-#include <linux/sched.h>
 #include <linux/interrupt.h>
 
 #include "wlcore.h"
 #include "debug.h"
 #include "wl12xx_80211.h"
 #include "io.h"
-#include "event.h"
 #include "tx.h"
-#include "rx.h"
 #include "ps.h"
 #include "init.h"
 #include "debugfs.h"
-#include "cmd.h"
-#include "boot.h"
 #include "testmode.h"
 #include "scan.h"
 #include "hw_ops.h"
 
 #define WL1271_BOOT_RETRIES 3
 
-#define WL1271_BOOT_RETRIES 3
-
 static char *fwlog_param;
 static int bug_on_recovery = -1;
 static int no_recovery     = -1;
@@ -65,8 +52,7 @@ static void __wl1271_op_remove_interface(struct wl1271 *wl,
 static void wlcore_op_stop_locked(struct wl1271 *wl);
 static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif);
 
-static int wl12xx_set_authorized(struct wl1271 *wl,
-				 struct wl12xx_vif *wlvif)
+static int wl12xx_set_authorized(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 {
 	int ret;
 
@@ -1668,8 +1654,7 @@ static int wl1271_configure_suspend(struct wl1271 *wl,
 	return 0;
 }
 
-static void wl1271_configure_resume(struct wl1271 *wl,
-				    struct wl12xx_vif *wlvif)
+static void wl1271_configure_resume(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 {
 	int ret = 0;
 	bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
@@ -3782,8 +3767,7 @@ static int wlcore_set_beacon_template(struct wl1271 *wl,
 	struct ieee80211_hdr *hdr;
 	u32 min_rate;
 	int ret;
-	int ieoffset = offsetof(struct ieee80211_mgmt,
-				u.beacon.variable);
+	int ieoffset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
 	struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
 	u16 tmpl_id;
 
@@ -5827,8 +5811,6 @@ static int wl1271_init_ieee80211(struct wl1271 *wl)
 	return 0;
 }
 
-#define WL1271_DEFAULT_CHANNEL 0
-
 struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size,
 				     u32 mbox_size)
 {
@@ -5881,7 +5863,7 @@ struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size,
 		goto err_hw;
 	}
 
-	wl->channel = WL1271_DEFAULT_CHANNEL;
+	wl->channel = 0;
 	wl->rx_counter = 0;
 	wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
 	wl->band = IEEE80211_BAND_2GHZ;
-- 
cgit v0.10.2


From 33cab57a50531756f28199d63b1a529bc9e01605 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <coelho@ti.com>
Date: Sat, 4 May 2013 02:46:38 +0300
Subject: wlcore: move sysfs handling to a separate file

Instead of doing all the sysfs file handling in the main file, move it
to a new sysfs source file to reduce the amount of code in a single
file.

Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/Makefile b/drivers/net/wireless/ti/wlcore/Makefile
index b21398f..4f23931 100644
--- a/drivers/net/wireless/ti/wlcore/Makefile
+++ b/drivers/net/wireless/ti/wlcore/Makefile
@@ -1,5 +1,5 @@
 wlcore-objs		= main.o cmd.o io.o event.o tx.o rx.o ps.o acx.o \
-			  boot.o init.o debugfs.o scan.o
+			  boot.o init.o debugfs.o scan.o sysfs.o
 
 wlcore_spi-objs 	= spi.o
 wlcore_sdio-objs	= sdio.o
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 32d877f..600ed7bc 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -39,6 +39,7 @@
 #include "testmode.h"
 #include "scan.h"
 #include "hw_ops.h"
+#include "sysfs.h"
 
 #define WL1271_BOOT_RETRIES 3
 
@@ -5387,151 +5388,6 @@ u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum ieee80211_band band)
 	return idx;
 }
 
-static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
-					       struct device_attribute *attr,
-					       char *buf)
-{
-	struct wl1271 *wl = dev_get_drvdata(dev);
-	ssize_t len;
-
-	len = PAGE_SIZE;
-
-	mutex_lock(&wl->mutex);
-	len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
-		       wl->sg_enabled);
-	mutex_unlock(&wl->mutex);
-
-	return len;
-
-}
-
-static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
-						struct device_attribute *attr,
-						const char *buf, size_t count)
-{
-	struct wl1271 *wl = dev_get_drvdata(dev);
-	unsigned long res;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &res);
-	if (ret < 0) {
-		wl1271_warning("incorrect value written to bt_coex_mode");
-		return count;
-	}
-
-	mutex_lock(&wl->mutex);
-
-	res = !!res;
-
-	if (res == wl->sg_enabled)
-		goto out;
-
-	wl->sg_enabled = res;
-
-	if (unlikely(wl->state != WLCORE_STATE_ON))
-		goto out;
-
-	ret = wl1271_ps_elp_wakeup(wl);
-	if (ret < 0)
-		goto out;
-
-	wl1271_acx_sg_enable(wl, wl->sg_enabled);
-	wl1271_ps_elp_sleep(wl);
-
- out:
-	mutex_unlock(&wl->mutex);
-	return count;
-}
-
-static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
-		   wl1271_sysfs_show_bt_coex_state,
-		   wl1271_sysfs_store_bt_coex_state);
-
-static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
-					   struct device_attribute *attr,
-					   char *buf)
-{
-	struct wl1271 *wl = dev_get_drvdata(dev);
-	ssize_t len;
-
-	len = PAGE_SIZE;
-
-	mutex_lock(&wl->mutex);
-	if (wl->hw_pg_ver >= 0)
-		len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
-	else
-		len = snprintf(buf, len, "n/a\n");
-	mutex_unlock(&wl->mutex);
-
-	return len;
-}
-
-static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
-		   wl1271_sysfs_show_hw_pg_ver, NULL);
-
-static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
-				       struct bin_attribute *bin_attr,
-				       char *buffer, loff_t pos, size_t count)
-{
-	struct device *dev = container_of(kobj, struct device, kobj);
-	struct wl1271 *wl = dev_get_drvdata(dev);
-	ssize_t len;
-	int ret;
-
-	ret = mutex_lock_interruptible(&wl->mutex);
-	if (ret < 0)
-		return -ERESTARTSYS;
-
-	/* Let only one thread read the log at a time, blocking others */
-	while (wl->fwlog_size == 0) {
-		DEFINE_WAIT(wait);
-
-		prepare_to_wait_exclusive(&wl->fwlog_waitq,
-					  &wait,
-					  TASK_INTERRUPTIBLE);
-
-		if (wl->fwlog_size != 0) {
-			finish_wait(&wl->fwlog_waitq, &wait);
-			break;
-		}
-
-		mutex_unlock(&wl->mutex);
-
-		schedule();
-		finish_wait(&wl->fwlog_waitq, &wait);
-
-		if (signal_pending(current))
-			return -ERESTARTSYS;
-
-		ret = mutex_lock_interruptible(&wl->mutex);
-		if (ret < 0)
-			return -ERESTARTSYS;
-	}
-
-	/* Check if the fwlog is still valid */
-	if (wl->fwlog_size < 0) {
-		mutex_unlock(&wl->mutex);
-		return 0;
-	}
-
-	/* Seeking is not supported - old logs are not kept. Disregard pos. */
-	len = min(count, (size_t)wl->fwlog_size);
-	wl->fwlog_size -= len;
-	memcpy(buffer, wl->fwlog, len);
-
-	/* Make room for new messages */
-	memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
-
-	mutex_unlock(&wl->mutex);
-
-	return len;
-}
-
-static struct bin_attribute fwlog_attr = {
-	.attr = {.name = "fwlog", .mode = S_IRUSR},
-	.read = wl1271_sysfs_read_fwlog,
-};
-
 static void wl12xx_derive_mac_addresses(struct wl1271 *wl, u32 oui, u32 nic)
 {
 	int i;
@@ -5970,11 +5826,8 @@ int wlcore_free_hw(struct wl1271 *wl)
 	wake_up_interruptible_all(&wl->fwlog_waitq);
 	mutex_unlock(&wl->mutex);
 
-	device_remove_bin_file(wl->dev, &fwlog_attr);
-
-	device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
+	wlcore_sysfs_free(wl);
 
-	device_remove_file(wl->dev, &dev_attr_bt_coex_state);
 	kfree(wl->buffer_32);
 	kfree(wl->mbox);
 	free_page((unsigned long)wl->fwlog);
@@ -6086,36 +5939,13 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 	if (ret)
 		goto out_irq;
 
-	/* Create sysfs file to control bt coex state */
-	ret = device_create_file(wl->dev, &dev_attr_bt_coex_state);
-	if (ret < 0) {
-		wl1271_error("failed to create sysfs file bt_coex_state");
+	ret = wlcore_sysfs_init(wl);
+	if (ret)
 		goto out_unreg;
-	}
-
-	/* Create sysfs file to get HW PG version */
-	ret = device_create_file(wl->dev, &dev_attr_hw_pg_ver);
-	if (ret < 0) {
-		wl1271_error("failed to create sysfs file hw_pg_ver");
-		goto out_bt_coex_state;
-	}
-
-	/* Create sysfs file for the FW log */
-	ret = device_create_bin_file(wl->dev, &fwlog_attr);
-	if (ret < 0) {
-		wl1271_error("failed to create sysfs file fwlog");
-		goto out_hw_pg_ver;
-	}
 
 	wl->initialized = true;
 	goto out;
 
-out_hw_pg_ver:
-	device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
-
-out_bt_coex_state:
-	device_remove_file(wl->dev, &dev_attr_bt_coex_state);
-
 out_unreg:
 	wl1271_unregister_hw(wl);
 
diff --git a/drivers/net/wireless/ti/wlcore/sysfs.c b/drivers/net/wireless/ti/wlcore/sysfs.c
new file mode 100644
index 0000000..8e58349
--- /dev/null
+++ b/drivers/net/wireless/ti/wlcore/sysfs.c
@@ -0,0 +1,216 @@
+/*
+ * This file is part of wlcore
+ *
+ * Copyright (C) 2013 Texas Instruments Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include "wlcore.h"
+#include "debug.h"
+#include "ps.h"
+#include "sysfs.h"
+
+static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
+					       struct device_attribute *attr,
+					       char *buf)
+{
+	struct wl1271 *wl = dev_get_drvdata(dev);
+	ssize_t len;
+
+	len = PAGE_SIZE;
+
+	mutex_lock(&wl->mutex);
+	len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
+		       wl->sg_enabled);
+	mutex_unlock(&wl->mutex);
+
+	return len;
+
+}
+
+static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	struct wl1271 *wl = dev_get_drvdata(dev);
+	unsigned long res;
+	int ret;
+
+	ret = kstrtoul(buf, 10, &res);
+	if (ret < 0) {
+		wl1271_warning("incorrect value written to bt_coex_mode");
+		return count;
+	}
+
+	mutex_lock(&wl->mutex);
+
+	res = !!res;
+
+	if (res == wl->sg_enabled)
+		goto out;
+
+	wl->sg_enabled = res;
+
+	if (unlikely(wl->state != WLCORE_STATE_ON))
+		goto out;
+
+	ret = wl1271_ps_elp_wakeup(wl);
+	if (ret < 0)
+		goto out;
+
+	wl1271_acx_sg_enable(wl, wl->sg_enabled);
+	wl1271_ps_elp_sleep(wl);
+
+ out:
+	mutex_unlock(&wl->mutex);
+	return count;
+}
+
+static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
+		   wl1271_sysfs_show_bt_coex_state,
+		   wl1271_sysfs_store_bt_coex_state);
+
+static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf)
+{
+	struct wl1271 *wl = dev_get_drvdata(dev);
+	ssize_t len;
+
+	len = PAGE_SIZE;
+
+	mutex_lock(&wl->mutex);
+	if (wl->hw_pg_ver >= 0)
+		len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
+	else
+		len = snprintf(buf, len, "n/a\n");
+	mutex_unlock(&wl->mutex);
+
+	return len;
+}
+
+static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
+		   wl1271_sysfs_show_hw_pg_ver, NULL);
+
+static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
+				       struct bin_attribute *bin_attr,
+				       char *buffer, loff_t pos, size_t count)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct wl1271 *wl = dev_get_drvdata(dev);
+	ssize_t len;
+	int ret;
+
+	ret = mutex_lock_interruptible(&wl->mutex);
+	if (ret < 0)
+		return -ERESTARTSYS;
+
+	/* Let only one thread read the log at a time, blocking others */
+	while (wl->fwlog_size == 0) {
+		DEFINE_WAIT(wait);
+
+		prepare_to_wait_exclusive(&wl->fwlog_waitq,
+					  &wait,
+					  TASK_INTERRUPTIBLE);
+
+		if (wl->fwlog_size != 0) {
+			finish_wait(&wl->fwlog_waitq, &wait);
+			break;
+		}
+
+		mutex_unlock(&wl->mutex);
+
+		schedule();
+		finish_wait(&wl->fwlog_waitq, &wait);
+
+		if (signal_pending(current))
+			return -ERESTARTSYS;
+
+		ret = mutex_lock_interruptible(&wl->mutex);
+		if (ret < 0)
+			return -ERESTARTSYS;
+	}
+
+	/* Check if the fwlog is still valid */
+	if (wl->fwlog_size < 0) {
+		mutex_unlock(&wl->mutex);
+		return 0;
+	}
+
+	/* Seeking is not supported - old logs are not kept. Disregard pos. */
+	len = min(count, (size_t)wl->fwlog_size);
+	wl->fwlog_size -= len;
+	memcpy(buffer, wl->fwlog, len);
+
+	/* Make room for new messages */
+	memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
+
+	mutex_unlock(&wl->mutex);
+
+	return len;
+}
+
+static struct bin_attribute fwlog_attr = {
+	.attr = {.name = "fwlog", .mode = S_IRUSR},
+	.read = wl1271_sysfs_read_fwlog,
+};
+
+int wlcore_sysfs_init(struct wl1271 *wl)
+{
+	int ret;
+
+	/* Create sysfs file to control bt coex state */
+	ret = device_create_file(wl->dev, &dev_attr_bt_coex_state);
+	if (ret < 0) {
+		wl1271_error("failed to create sysfs file bt_coex_state");
+		goto out;
+	}
+
+	/* Create sysfs file to get HW PG version */
+	ret = device_create_file(wl->dev, &dev_attr_hw_pg_ver);
+	if (ret < 0) {
+		wl1271_error("failed to create sysfs file hw_pg_ver");
+		goto out_bt_coex_state;
+	}
+
+	/* Create sysfs file for the FW log */
+	ret = device_create_bin_file(wl->dev, &fwlog_attr);
+	if (ret < 0) {
+		wl1271_error("failed to create sysfs file fwlog");
+		goto out_hw_pg_ver;
+	}
+
+	goto out;
+
+out_hw_pg_ver:
+	device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
+
+out_bt_coex_state:
+	device_remove_file(wl->dev, &dev_attr_bt_coex_state);
+
+out:
+	return ret;
+}
+
+void wlcore_sysfs_free(struct wl1271 *wl)
+{
+	device_remove_bin_file(wl->dev, &fwlog_attr);
+
+	device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
+
+	device_remove_file(wl->dev, &dev_attr_bt_coex_state);
+}
diff --git a/drivers/net/wireless/ti/wlcore/sysfs.h b/drivers/net/wireless/ti/wlcore/sysfs.h
new file mode 100644
index 0000000..c148892
--- /dev/null
+++ b/drivers/net/wireless/ti/wlcore/sysfs.h
@@ -0,0 +1,28 @@
+/*
+ * This file is part of wlcore
+ *
+ * Copyright (C) 2013 Texas Instruments Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __SYSFS_H__
+#define __SYSFS_H__
+
+int wlcore_sysfs_init(struct wl1271 *wl);
+void wlcore_sysfs_free(struct wl1271 *wl);
+
+#endif
-- 
cgit v0.10.2


From 6f0b1bb2ba2b1df781c64fff645c3fe0495b8161 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 7 May 2013 15:41:08 +0300
Subject: wlcore: configure rates in multiple cases

The current code configures the peer caps only on BSS_CHANGED_HT
notification. However, we have to configure the peer caps
(and rates) even when HT is not enabled. Otherwise, the fw
continues working with low rates.

Configure the peer caps when sta_exists is true (i.e. when
we extracted the sta rates, e.g. on association).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 600ed7bc..04dc1b6 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -4215,8 +4215,7 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
 	}
 
 	/* Handle new association with HT. Do this after join. */
-	if (sta_exists &&
-	    (changed & BSS_CHANGED_HT)) {
+	if (sta_exists) {
 		bool enabled =
 			bss_conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT;
 
-- 
cgit v0.10.2


From bc2ab3b850a8c563b3910f396e5f0753ce855134 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <coelho@ti.com>
Date: Wed, 8 May 2013 12:54:56 +0300
Subject: wl18xx: use locally administered MAC address if not available from
 fuse

In some R&D chips, the device may be left untrimmed and with the MAC
address missing from fuse ROM.  In order to support those devices,
apply a random locally administered MAC address instead.

Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index ae85ae4..7aa0eb8 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -23,6 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/ip.h>
 #include <linux/firmware.h>
+#include <linux/etherdevice.h>
 
 #include "../wlcore/wlcore.h"
 #include "../wlcore/debug.h"
@@ -1318,6 +1319,16 @@ static int wl18xx_get_mac(struct wl1271 *wl)
 		((mac1 & 0xff000000) >> 24);
 	wl->fuse_nic_addr = (mac1 & 0xffffff);
 
+	if (!wl->fuse_oui_addr && !wl->fuse_nic_addr) {
+		u8 mac[ETH_ALEN];
+
+		eth_random_addr(mac);
+
+		wl->fuse_oui_addr = (mac[0] << 16) + (mac[1] << 8) + mac[2];
+		wl->fuse_nic_addr = (mac[3] << 16) + (mac[4] << 8) + mac[5];
+		wl1271_warning("MAC address from fuse not available, using random locally administered addresses.");
+	}
+
 	ret = wlcore_set_partition(wl, &wl->ptable[PART_DOWN]);
 
 out:
-- 
cgit v0.10.2


From ba1e6eb96d73eb1b2be6d67a55a799477b14a353 Mon Sep 17 00:00:00 2001
From: Yoni Divinsky <yoni.divinsky@ti.com>
Date: Sun, 12 May 2013 12:35:28 +0300
Subject: wlcore: set default_wep_key when configured

When associating to an AP with WEP set the
default key upon association by implementing
the set_deafult_key_idx op.

Fixes auto-arp sent with wrong key_idx bug.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 04dc1b6..7ee422f 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -3196,14 +3196,6 @@ static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		if (ret < 0)
 			return ret;
 
-		/* the default WEP key needs to be configured at least once */
-		if (key_type == KEY_WEP) {
-			ret = wl12xx_cmd_set_default_wep_key(wl,
-							wlvif->default_key,
-							wlvif->sta.hlid);
-			if (ret < 0)
-				return ret;
-		}
 	}
 
 	return 0;
@@ -3360,6 +3352,46 @@ int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 }
 EXPORT_SYMBOL_GPL(wlcore_set_key);
 
+static void wl1271_op_set_default_key_idx(struct ieee80211_hw *hw,
+					  struct ieee80211_vif *vif,
+					  int key_idx)
+{
+	struct wl1271 *wl = hw->priv;
+	struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
+	int ret;
+
+	wl1271_debug(DEBUG_MAC80211, "mac80211 set default key idx %d",
+		     key_idx);
+
+	mutex_lock(&wl->mutex);
+
+	if (unlikely(wl->state != WLCORE_STATE_ON)) {
+		ret = -EAGAIN;
+		goto out_unlock;
+	}
+
+	ret = wl1271_ps_elp_wakeup(wl);
+	if (ret < 0)
+		goto out_unlock;
+
+	wlvif->default_key = key_idx;
+
+	/* the default WEP key needs to be configured at least once */
+	if (wlvif->encryption_type == KEY_WEP) {
+		ret = wl12xx_cmd_set_default_wep_key(wl,
+				key_idx,
+				wlvif->sta.hlid);
+		if (ret < 0)
+			goto out_sleep;
+	}
+
+out_sleep:
+	wl1271_ps_elp_sleep(wl);
+
+out_unlock:
+	mutex_unlock(&wl->mutex);
+}
+
 void wlcore_regdomain_config(struct wl1271 *wl)
 {
 	int ret;
@@ -5352,6 +5384,7 @@ static const struct ieee80211_ops wl1271_ops = {
 	.ampdu_action = wl1271_op_ampdu_action,
 	.tx_frames_pending = wl1271_tx_frames_pending,
 	.set_bitrate_mask = wl12xx_set_bitrate_mask,
+	.set_default_unicast_key = wl1271_op_set_default_key_idx,
 	.channel_switch = wl12xx_op_channel_switch,
 	.flush = wlcore_op_flush,
 	.remain_on_channel = wlcore_op_remain_on_channel,
diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c
index 004d02e..7e93fe6 100644
--- a/drivers/net/wireless/ti/wlcore/tx.c
+++ b/drivers/net/wireless/ti/wlcore/tx.c
@@ -386,7 +386,7 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		is_wep = (cipher == WLAN_CIPHER_SUITE_WEP40) ||
 			 (cipher == WLAN_CIPHER_SUITE_WEP104);
 
-		if (unlikely(is_wep && wlvif->default_key != idx)) {
+		if (WARN_ON(is_wep && wlvif->default_key != idx)) {
 			ret = wl1271_set_default_wep_key(wl, wlvif, idx);
 			if (ret < 0)
 				return ret;
-- 
cgit v0.10.2


From c838478b7b78d6e212547cd2243031080f2cee45 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Sun, 12 May 2013 12:35:29 +0300
Subject: wlcore: cancel channel switch work on interface removal

Otherwise, if the work is pending, we might get
a bad dereference after the interface is removed.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 7ee422f..ed200c6 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -2589,6 +2589,7 @@ unlock:
 	cancel_work_sync(&wlvif->rx_streaming_enable_work);
 	cancel_work_sync(&wlvif->rx_streaming_disable_work);
 	cancel_delayed_work_sync(&wlvif->connection_loss_work);
+	cancel_delayed_work_sync(&wlvif->channel_switch_work);
 
 	mutex_lock(&wl->mutex);
 }
-- 
cgit v0.10.2


From 2baf53c6e35ea25aaa21486dab023eb3d901611e Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Sun, 12 May 2013 12:35:30 +0300
Subject: wlcore: hold jiffies in unsigned long

u32 can be incorrect (too small) for some architectures.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/ps.c b/drivers/net/wireless/ti/wlcore/ps.c
index 9654577..98066d4 100644
--- a/drivers/net/wireless/ti/wlcore/ps.c
+++ b/drivers/net/wireless/ti/wlcore/ps.c
@@ -110,7 +110,7 @@ int wl1271_ps_elp_wakeup(struct wl1271 *wl)
 	DECLARE_COMPLETION_ONSTACK(compl);
 	unsigned long flags;
 	int ret;
-	u32 start_time = jiffies;
+	unsigned long start_time = jiffies;
 	bool pending = false;
 
 	/*
-- 
cgit v0.10.2


From 5cbba2d48ac3d493d2337414806c718370edcf8a Mon Sep 17 00:00:00 2001
From: Victor Goldenshtein <victorg@ti.com>
Date: Sun, 12 May 2013 12:35:31 +0300
Subject: wlcore: fix occasional AP TX stop after recovery

The fw_status wasn't zeroed during allocation, resulting
in uninitialized var usage, and finally causing AP
traffic stop after recovery.

The wrong value in fw_status_2->counters.tx_lnk_free_pkts
led to a bad lnk->allocated_pkts calculation in
wlcore_fw_status(), causing wl18xx_lnk_low_prio() to return
FALSE (lnk->allocated_pkts > thold).
This eventually blocked the link in wlcore_tx_work_locked(),
as wl1271_skb_dequeue() continuously returned NULL.

Fix it by zeroing wl->fw_status_1/2 during allocation.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index ed200c6..b8db55c 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -970,7 +970,7 @@ static int wlcore_fw_wakeup(struct wl1271 *wl)
 
 static int wl1271_setup(struct wl1271 *wl)
 {
-	wl->fw_status_1 = kmalloc(WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
+	wl->fw_status_1 = kzalloc(WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
 				  sizeof(*wl->fw_status_2) +
 				  wl->fw_status_priv_len, GFP_KERNEL);
 	if (!wl->fw_status_1)
@@ -980,7 +980,7 @@ static int wl1271_setup(struct wl1271 *wl)
 				(((u8 *) wl->fw_status_1) +
 				WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc));
 
-	wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
+	wl->tx_res_if = kzalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
 	if (!wl->tx_res_if) {
 		kfree(wl->fw_status_1);
 		return -ENOMEM;
-- 
cgit v0.10.2


From d5a49178fa842a83d7161b373117004e0483385a Mon Sep 17 00:00:00 2001
From: Peter Huewe <peterhuewe@gmx.de>
Date: Mon, 20 May 2013 21:52:40 +0200
Subject: net/wireless/ti/wlcore/spi: Use module_spi_driver to register driver

Removing some boilerplate by using module_spi_driver instead of calling
register and unregister in the otherwise empty init/exit functions

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index e264478..1b0cd98 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -434,19 +434,7 @@ static struct spi_driver wl1271_spi_driver = {
 	.remove		= wl1271_remove,
 };
 
-static int __init wl1271_init(void)
-{
-	return spi_register_driver(&wl1271_spi_driver);
-}
-
-static void __exit wl1271_exit(void)
-{
-	spi_unregister_driver(&wl1271_spi_driver);
-}
-
-module_init(wl1271_init);
-module_exit(wl1271_exit);
-
+module_spi_driver(wl1271_spi_driver);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
 MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
-- 
cgit v0.10.2


From 19a4e68a8a192957f7556a0aae9c37a6bc73cde6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 29 May 2013 15:48:22 +0530
Subject: net: wireless: wl1251: Use module_spi_driver macro

module_spi_driver() eliminates some boiler plate and makes code
simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c
index 4c67c2f..dfd0877 100644
--- a/drivers/net/wireless/ti/wl1251/spi.c
+++ b/drivers/net/wireless/ti/wl1251/spi.c
@@ -329,29 +329,7 @@ static struct spi_driver wl1251_spi_driver = {
 	.remove		= wl1251_spi_remove,
 };
 
-static int __init wl1251_spi_init(void)
-{
-	int ret;
-
-	ret = spi_register_driver(&wl1251_spi_driver);
-	if (ret < 0) {
-		wl1251_error("failed to register spi driver: %d", ret);
-		goto out;
-	}
-
-out:
-	return ret;
-}
-
-static void __exit wl1251_spi_exit(void)
-{
-	spi_unregister_driver(&wl1251_spi_driver);
-
-	wl1251_notice("unloaded");
-}
-
-module_init(wl1251_spi_init);
-module_exit(wl1251_spi_exit);
+module_spi_driver(wl1251_spi_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Kalle Valo <kvalo@adurom.com>");
-- 
cgit v0.10.2


From 789e90e567d7d93edc1b2001d17209c21cc37850 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 29 May 2013 15:48:23 +0530
Subject: net: wireless: wl1251: Fix commenting style

Make the commenting style consistent with networking block comment
style as suggested by checkpatch.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c
index dfd0877..c7dc6fe 100644
--- a/drivers/net/wireless/ti/wl1251/spi.c
+++ b/drivers/net/wireless/ti/wl1251/spi.c
@@ -93,8 +93,7 @@ static void wl1251_spi_wake(struct wl1251 *wl)
 	memset(&t, 0, sizeof(t));
 	spi_message_init(&m);
 
-	/*
-	 * Set WSPI_INIT_COMMAND
+	/* Set WSPI_INIT_COMMAND
 	 * the data is being send from the MSB to LSB
 	 */
 	cmd[2] = 0xff;
@@ -262,7 +261,8 @@ static int wl1251_spi_probe(struct spi_device *spi)
 	wl->if_ops = &wl1251_spi_ops;
 
 	/* This is the only SPI value that we need to set here, the rest
-	 * comes from the board-peripherals file */
+	 * comes from the board-peripherals file
+	 */
 	spi->bits_per_word = 32;
 
 	ret = spi_setup(spi);
-- 
cgit v0.10.2


From a2d0909a687b4d250cc2b7481072e361678745ba Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 13 Jun 2013 16:06:08 +0200
Subject: iwlwifi: bump required firmware API version for 3160/7260

As the firmware API has changed significantly and we don't
have support code for the old APIs, bump the version to be
able to release the version 7 API firmware. Unfortunately
this means that the driver in 3.9 and 3.10 can't work, but
that's still better than crashing the device/driver there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c
index d4f3b48..22b7fa5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-7000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-7000.c
@@ -67,16 +67,16 @@
 #include "iwl-agn-hw.h"
 
 /* Highest firmware API version supported */
-#define IWL7260_UCODE_API_MAX	6
-#define IWL3160_UCODE_API_MAX	6
+#define IWL7260_UCODE_API_MAX	7
+#define IWL3160_UCODE_API_MAX	7
 
 /* Oldest version we won't warn about */
-#define IWL7260_UCODE_API_OK	6
-#define IWL3160_UCODE_API_OK	6
+#define IWL7260_UCODE_API_OK	7
+#define IWL3160_UCODE_API_OK	7
 
 /* Lowest firmware API version supported */
-#define IWL7260_UCODE_API_MIN	6
-#define IWL3160_UCODE_API_MIN	6
+#define IWL7260_UCODE_API_MIN	7
+#define IWL3160_UCODE_API_MIN	7
 
 /* NVM versions */
 #define IWL7260_NVM_VERSION		0x0a1d
-- 
cgit v0.10.2


From 3c68ef5b2223e084402a4fedbd4c31774f012f4f Mon Sep 17 00:00:00 2001
From: Avinash Patil <patila@marvell.com>
Date: Mon, 10 Jun 2013 15:40:07 -0700
Subject: mwifiex: Add module parameter for regdomain

Allow a regulatory domain country code to be specified at boot
using a module argument.  This overrides the firmware regulatory
mode.

This patch also enables uAP to operate in 11a mode with hostapd.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index 856aea2..ef5fa89 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -20,6 +20,9 @@
 #include "cfg80211.h"
 #include "main.h"
 
+static char *reg_alpha2;
+module_param(reg_alpha2, charp, 0);
+
 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
 	{
 		.max = 2, .types = BIT(NL80211_IFTYPE_STATION),
@@ -2485,6 +2488,17 @@ static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
 };
 #endif
 
+static bool mwifiex_is_valid_alpha2(const char *alpha2)
+{
+	if (!alpha2 || strlen(alpha2) != 2)
+		return false;
+
+	if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
+		return true;
+
+	return false;
+}
+
 /*
  * This function registers the device with CFG802.11 subsystem.
  *
@@ -2537,6 +2551,7 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 			WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
 			WIPHY_FLAG_AP_UAPSD |
 			WIPHY_FLAG_CUSTOM_REGULATORY |
+			WIPHY_FLAG_STRICT_REGULATORY |
 			WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
 
 	wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
@@ -2574,10 +2589,16 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 		wiphy_free(wiphy);
 		return ret;
 	}
-	country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
-	if (country_code)
-		dev_info(adapter->dev,
-			 "ignoring F/W country code %2.2s\n", country_code);
+
+	if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
+		wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
+		regulatory_hint(wiphy, reg_alpha2);
+	} else {
+		country_code = mwifiex_11d_code_2_region(adapter->region_code);
+		if (country_code)
+			wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
+				   country_code);
+	}
 
 	adapter->wiphy = wiphy;
 	return ret;
-- 
cgit v0.10.2


From 6390d88529835a8ad3563fe01a5da89fa52d6db2 Mon Sep 17 00:00:00 2001
From: Daniel Drake <dsd@laptop.org>
Date: Fri, 14 Jun 2013 15:24:24 -0400
Subject: mwifiex: fix memory corruption when unsetting multicast list

When trying to unset a previously-set multicast list (i.e. the new list
has 0 entries), mwifiex_set_multicast_list() was calling down to
mwifiex_request_set_multicast_list() while leaving
mcast_list.num_multicast_addr as an uninitialized value.

We were arriving at mwifiex_cmd_mac_multicast_adr() which would then
proceed to do an often huge memcpy of
mcast_list.num_multicast_addr*ETH_ALEN bytes, causing memory corruption
and hard to debug crashes.

Fix this by setting mcast_list.num_multicast_addr to 0 when no multicast
list is provided. Similarly, fix up the logic in
mwifiex_request_set_multicast_list() to unset the multicast list that
was previously sent to the hardware in such cases.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 4858719..e15ab72 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -669,9 +669,8 @@ static void mwifiex_set_multicast_list(struct net_device *dev)
 		mcast_list.mode = MWIFIEX_ALL_MULTI_MODE;
 	} else {
 		mcast_list.mode = MWIFIEX_MULTICAST_MODE;
-		if (netdev_mc_count(dev))
-			mcast_list.num_multicast_addr =
-				mwifiex_copy_mcast_addr(&mcast_list, dev);
+		mcast_list.num_multicast_addr =
+			mwifiex_copy_mcast_addr(&mcast_list, dev);
 	}
 	mwifiex_request_set_multicast_list(priv, &mcast_list);
 }
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 1a8a19d..23aa910 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -104,16 +104,14 @@ int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
 		} else {
 			priv->curr_pkt_filter &=
 				~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
-			if (mcast_list->num_multicast_addr) {
-				dev_dbg(priv->adapter->dev,
-					"info: Set multicast list=%d\n",
-				       mcast_list->num_multicast_addr);
-				/* Send multicast addresses to firmware */
-				ret = mwifiex_send_cmd_async(priv,
-					HostCmd_CMD_MAC_MULTICAST_ADR,
-					HostCmd_ACT_GEN_SET, 0,
-					mcast_list);
-			}
+			dev_dbg(priv->adapter->dev,
+				"info: Set multicast list=%d\n",
+				mcast_list->num_multicast_addr);
+			/* Send multicast addresses to firmware */
+			ret = mwifiex_send_cmd_async(priv,
+				HostCmd_CMD_MAC_MULTICAST_ADR,
+				HostCmd_ACT_GEN_SET, 0,
+				mcast_list);
 		}
 	}
 	dev_dbg(priv->adapter->dev,
-- 
cgit v0.10.2


From bac76a3d07133f6d9389689f3693b78f68b77adb Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 17 Jun 2013 07:01:47 +0530
Subject: ath9k: Fix LNA gpio for AR9485

The commit "ath9k: Add custom parameters for CUS198" didn't
pass the correct gpio value to ath9k_hw_cfg_output(). Fix it.

Reported-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 9a00bc0..eae23b9 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3576,7 +3576,7 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 		else
 			gpio = AR9300_EXT_LNA_CTL_GPIO_AR9485;
 
-		ath9k_hw_cfg_output(ah, AR9300_EXT_LNA_CTL_GPIO_AR9485,
+		ath9k_hw_cfg_output(ah, gpio,
 				    AR_GPIO_OUTPUT_MUX_AS_PCIE_ATTENTION_LED);
 	}
 
-- 
cgit v0.10.2


From 55fee98a6e732bea9f2da986b458e68ea462c584 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 17 Jun 2013 14:24:36 +0530
Subject: ath9k: Fix ANI for AP mode

The commit "ath9k: Fix ANI monitoring" reverted an earlier
commit that adjusted ANI to improve performance. But, this causes
adverse effects in AP mode (as reported by Felix based on an OpenWrt
report). Use the older INI/period configuration for now until more
testing is done.

Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index a68beb1..4994bea 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -186,6 +186,14 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
 				     ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
 				     entry_ofdm->ofdm_weak_signal_on);
 	}
+
+	if (aniState->ofdmNoiseImmunityLevel >= ATH9K_ANI_OFDM_DEF_LEVEL) {
+		ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
+		ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI;
+	} else {
+		ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI;
+		ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW;
+	}
 }
 
 static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hw *ah)
@@ -420,25 +428,12 @@ void ath9k_hw_ani_monitor(struct ath_hw *ah, struct ath9k_channel *chan)
 		ofdmPhyErrRate, aniState->cckNoiseImmunityLevel,
 		cckPhyErrRate, aniState->ofdmsTurn);
 
-	if (aniState->listenTime > 5 * ah->aniperiod) {
-		/*
-		 * Check if we need to lower immunity if
-		 * 5 ani_periods have passed.
-		 */
-		if (ofdmPhyErrRate <= ah->config.ofdm_trig_low &&
-		    cckPhyErrRate <= ah->config.cck_trig_low) {
+	if (aniState->listenTime > ah->aniperiod) {
+		if (cckPhyErrRate < ah->config.cck_trig_low &&
+		    ofdmPhyErrRate < ah->config.ofdm_trig_low) {
 			ath9k_hw_ani_lower_immunity(ah);
 			aniState->ofdmsTurn = !aniState->ofdmsTurn;
-		}
-		ath9k_ani_restart(ah);
-	} else if (aniState->listenTime > ah->aniperiod) {
-		/*
-		 * Check if immunity has to be raised,
-		 * (either OFDM or CCK).
-		 */
-		if (ofdmPhyErrRate > ah->config.ofdm_trig_high &&
-		    (cckPhyErrRate <= ah->config.cck_trig_high ||
-		     aniState->ofdmsTurn)) {
+		} else if (ofdmPhyErrRate > ah->config.ofdm_trig_high) {
 			ath9k_hw_ani_ofdm_err_trigger(ah);
 			aniState->ofdmsTurn = false;
 		} else if (cckPhyErrRate > ah->config.cck_trig_high) {
diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index 77a06fd..b54a3fb 100644
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -20,8 +20,12 @@
 #define BEACON_RSSI(ahp) (ahp->stats.avgbrssi)
 
 /* units are errors per second */
-#define ATH9K_ANI_OFDM_TRIG_HIGH          1000
+#define ATH9K_ANI_OFDM_TRIG_HIGH           3500
+#define ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI 1000
+
 #define ATH9K_ANI_OFDM_TRIG_LOW           400
+#define ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI 900
+
 #define ATH9K_ANI_CCK_TRIG_HIGH           600
 #define ATH9K_ANI_CCK_TRIG_LOW            300
 
-- 
cgit v0.10.2


From 972da7ec493b16b1d06c27832fad971466859fad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 17 Jun 2013 18:34:32 +0200
Subject: bcma: update core (en|dis)abling functions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Broadocm updated their code, this may be needed for newer hardware or
some corner cases.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bcma/core.c b/drivers/bcma/core.c
index 17b26ce..37a5ffe 100644
--- a/drivers/bcma/core.c
+++ b/drivers/bcma/core.c
@@ -9,6 +9,25 @@
 #include <linux/export.h>
 #include <linux/bcma/bcma.h>
 
+static bool bcma_core_wait_value(struct bcma_device *core, u16 reg, u32 mask,
+				 u32 value, int timeout)
+{
+	unsigned long deadline = jiffies + timeout;
+	u32 val;
+
+	do {
+		val = bcma_aread32(core, reg);
+		if ((val & mask) == value)
+			return true;
+		cpu_relax();
+		udelay(10);
+	} while (!time_after_eq(jiffies, deadline));
+
+	bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg);
+
+	return false;
+}
+
 bool bcma_core_is_enabled(struct bcma_device *core)
 {
 	if ((bcma_aread32(core, BCMA_IOCTL) & (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC))
@@ -25,13 +44,15 @@ void bcma_core_disable(struct bcma_device *core, u32 flags)
 	if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
 		return;
 
-	bcma_awrite32(core, BCMA_IOCTL, flags);
-	bcma_aread32(core, BCMA_IOCTL);
-	udelay(10);
+	bcma_core_wait_value(core, BCMA_RESET_ST, ~0, 0, 300);
 
 	bcma_awrite32(core, BCMA_RESET_CTL, BCMA_RESET_CTL_RESET);
 	bcma_aread32(core, BCMA_RESET_CTL);
 	udelay(1);
+
+	bcma_awrite32(core, BCMA_IOCTL, flags);
+	bcma_aread32(core, BCMA_IOCTL);
+	udelay(10);
 }
 EXPORT_SYMBOL_GPL(bcma_core_disable);
 
@@ -43,6 +64,7 @@ int bcma_core_enable(struct bcma_device *core, u32 flags)
 	bcma_aread32(core, BCMA_IOCTL);
 
 	bcma_awrite32(core, BCMA_RESET_CTL, 0);
+	bcma_aread32(core, BCMA_RESET_CTL);
 	udelay(1);
 
 	bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | flags));
-- 
cgit v0.10.2


From 39cd206c81f1cc6cc4d3cbafa81734cd3b3c66be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 17 Jun 2013 19:19:19 +0200
Subject: ssb: use const for serial flash hardware table
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/ssb/driver_chipcommon_sflash.c b/drivers/ssb/driver_chipcommon_sflash.c
index 720665c..1b9e770 100644
--- a/drivers/ssb/driver_chipcommon_sflash.c
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -16,7 +16,7 @@ struct ssb_sflash_tbl_e {
 	u16 numblocks;
 };
 
-static struct ssb_sflash_tbl_e ssb_sflash_st_tbl[] = {
+static const struct ssb_sflash_tbl_e ssb_sflash_st_tbl[] = {
 	{ "M25P20", 0x11, 0x10000, 4, },
 	{ "M25P40", 0x12, 0x10000, 8, },
 
@@ -27,7 +27,7 @@ static struct ssb_sflash_tbl_e ssb_sflash_st_tbl[] = {
 	{ 0 },
 };
 
-static struct ssb_sflash_tbl_e ssb_sflash_sst_tbl[] = {
+static const struct ssb_sflash_tbl_e ssb_sflash_sst_tbl[] = {
 	{ "SST25WF512", 1, 0x1000, 16, },
 	{ "SST25VF512", 0x48, 0x1000, 16, },
 	{ "SST25WF010", 2, 0x1000, 32, },
@@ -45,7 +45,7 @@ static struct ssb_sflash_tbl_e ssb_sflash_sst_tbl[] = {
 	{ 0 },
 };
 
-static struct ssb_sflash_tbl_e ssb_sflash_at_tbl[] = {
+static const struct ssb_sflash_tbl_e ssb_sflash_at_tbl[] = {
 	{ "AT45DB011", 0xc, 256, 512, },
 	{ "AT45DB021", 0x14, 256, 1024, },
 	{ "AT45DB041", 0x1c, 256, 2048, },
@@ -73,7 +73,7 @@ static void ssb_sflash_cmd(struct ssb_chipcommon *cc, u32 opcode)
 /* Initialize serial flash access */
 int ssb_sflash_init(struct ssb_chipcommon *cc)
 {
-	struct ssb_sflash_tbl_e *e;
+	const struct ssb_sflash_tbl_e *e;
 	u32 id, id2;
 
 	switch (cc->capabilities & SSB_CHIPCO_CAP_FLASHT) {
-- 
cgit v0.10.2


From 4a71053ec5b5f5bf58963b94429d7af920b88ef9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 17 Jun 2013 19:19:20 +0200
Subject: bcma: use const for serial flash hardware table
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bcma/driver_chipcommon_sflash.c b/drivers/bcma/driver_chipcommon_sflash.c
index e6ed4fe..4d07cce 100644
--- a/drivers/bcma/driver_chipcommon_sflash.c
+++ b/drivers/bcma/driver_chipcommon_sflash.c
@@ -30,7 +30,7 @@ struct bcma_sflash_tbl_e {
 	u16 numblocks;
 };
 
-static struct bcma_sflash_tbl_e bcma_sflash_st_tbl[] = {
+static const struct bcma_sflash_tbl_e bcma_sflash_st_tbl[] = {
 	{ "M25P20", 0x11, 0x10000, 4, },
 	{ "M25P40", 0x12, 0x10000, 8, },
 
@@ -41,7 +41,7 @@ static struct bcma_sflash_tbl_e bcma_sflash_st_tbl[] = {
 	{ 0 },
 };
 
-static struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
+static const struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
 	{ "SST25WF512", 1, 0x1000, 16, },
 	{ "SST25VF512", 0x48, 0x1000, 16, },
 	{ "SST25WF010", 2, 0x1000, 32, },
@@ -59,7 +59,7 @@ static struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
 	{ 0 },
 };
 
-static struct bcma_sflash_tbl_e bcma_sflash_at_tbl[] = {
+static const struct bcma_sflash_tbl_e bcma_sflash_at_tbl[] = {
 	{ "AT45DB011", 0xc, 256, 512, },
 	{ "AT45DB021", 0x14, 256, 1024, },
 	{ "AT45DB041", 0x1c, 256, 2048, },
@@ -89,7 +89,7 @@ int bcma_sflash_init(struct bcma_drv_cc *cc)
 {
 	struct bcma_bus *bus = cc->core->bus;
 	struct bcma_sflash *sflash = &cc->sflash;
-	struct bcma_sflash_tbl_e *e;
+	const struct bcma_sflash_tbl_e *e;
 	u32 id, id2;
 
 	switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
-- 
cgit v0.10.2


From e570bd0472b10c9f982fdb58eb39c81445cddb5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Mon, 17 Jun 2013 19:56:20 +0200
Subject: ssb: add struct for serial flash
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This data allow writing for example MTD driver.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/ssb/driver_chipcommon_sflash.c b/drivers/ssb/driver_chipcommon_sflash.c
index 1b9e770..205f1c4 100644
--- a/drivers/ssb/driver_chipcommon_sflash.c
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -73,6 +73,7 @@ static void ssb_sflash_cmd(struct ssb_chipcommon *cc, u32 opcode)
 /* Initialize serial flash access */
 int ssb_sflash_init(struct ssb_chipcommon *cc)
 {
+	struct ssb_sflash *sflash = &cc->dev->bus->mipscore.sflash;
 	const struct ssb_sflash_tbl_e *e;
 	u32 id, id2;
 
@@ -131,6 +132,12 @@ int ssb_sflash_init(struct ssb_chipcommon *cc)
 		return -ENOTSUPP;
 	}
 
+	sflash->window = SSB_FLASH2;
+	sflash->blocksize = e->blocksize;
+	sflash->numblocks = e->numblocks;
+	sflash->size = sflash->blocksize * sflash->numblocks;
+	sflash->present = true;
+
 	pr_info("Found %s serial flash (blocksize: 0x%X, blocks: %d)\n",
 		e->name, e->blocksize, e->numblocks);
 
diff --git a/include/linux/ssb/ssb_driver_mips.h b/include/linux/ssb/ssb_driver_mips.h
index afe79d4..6535e47 100644
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -20,6 +20,18 @@ struct ssb_pflash {
 	u32 window_size;
 };
 
+#ifdef CONFIG_SSB_SFLASH
+struct ssb_sflash {
+	bool present;
+	u32 window;
+	u32 blocksize;
+	u16 numblocks;
+	u32 size;
+
+	void *priv;
+};
+#endif
+
 struct ssb_mipscore {
 	struct ssb_device *dev;
 
@@ -27,6 +39,9 @@ struct ssb_mipscore {
 	struct ssb_serial_port serial_ports[4];
 
 	struct ssb_pflash pflash;
+#ifdef CONFIG_SSB_SFLASH
+	struct ssb_sflash sflash;
+#endif
 };
 
 extern void ssb_mipscore_init(struct ssb_mipscore *mcore);
-- 
cgit v0.10.2


From c4d827c5ccc3a49227dbf9d4b248a2e86f388023 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Mon, 17 Jun 2013 13:25:49 -0500
Subject: rtlwifi: rtl8192cu: Add new USB ID for TP-Link TL-WN8200ND

This is a new device for this driver.

Reported-by: Tobias Kluge <zielscheibe@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Tobias Kluge <zielscheibe@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
index 826f085..2bd5985 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
@@ -359,6 +359,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = {
 	{RTL_USB_DEVICE(0x2001, 0x330a, rtl92cu_hal_cfg)}, /*D-Link-Alpha*/
 	{RTL_USB_DEVICE(0x2019, 0xab2b, rtl92cu_hal_cfg)}, /*Planex -Abocom*/
 	{RTL_USB_DEVICE(0x20f4, 0x624d, rtl92cu_hal_cfg)}, /*TRENDNet*/
+	{RTL_USB_DEVICE(0x2357, 0x0100, rtl92cu_hal_cfg)}, /*TP-Link WN8200ND*/
 	{RTL_USB_DEVICE(0x7392, 0x7822, rtl92cu_hal_cfg)}, /*Edimax -Edimax*/
 	{}
 };
-- 
cgit v0.10.2


From eb6db622825b2028df74f490b8c36887cf3c2f50 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Fri, 14 Jun 2013 16:33:25 +0300
Subject: net: change sysctl_net_ll_poll into an unsigned int

There is no reason for sysctl_net_ll_poll to be an unsigned long.
Change it into an unsigned int.
Fix the proc handler.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index bc262f8..44e2f70 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -34,7 +34,7 @@
 #ifdef CONFIG_NET_LL_RX_POLL
 
 struct napi_struct;
-extern unsigned long sysctl_net_ll_poll __read_mostly;
+extern unsigned int sysctl_net_ll_poll __read_mostly;
 
 /* return values from ndo_ll_poll */
 #define LL_FLUSH_FAILED		-1
@@ -45,7 +45,8 @@ extern unsigned long sysctl_net_ll_poll __read_mostly;
 
 static inline cycles_t ll_end_time(void)
 {
-	return TSC_MHZ * ACCESS_ONCE(sysctl_net_ll_poll) + get_cycles();
+	return (cycles_t)TSC_MHZ * ACCESS_ONCE(sysctl_net_ll_poll)
+			+ get_cycles();
 }
 
 static inline bool sk_valid_ll(struct sock *sk)
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 78c746e..62702c2 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -302,9 +302,9 @@ static struct ctl_table net_core_table[] = {
 	{
 		.procname	= "low_latency_poll",
 		.data		= &sysctl_net_ll_poll,
-		.maxlen		= sizeof(unsigned long),
+		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
-		.proc_handler	= proc_doulongvec_minmax
+		.proc_handler	= proc_dointvec
 	},
 #endif
 #endif /* CONFIG_NET */
diff --git a/net/socket.c b/net/socket.c
index 21fd29f..caaffa1 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -107,7 +107,7 @@
 #include <net/ll_poll.h>
 
 #ifdef CONFIG_NET_LL_RX_POLL
-unsigned long sysctl_net_ll_poll __read_mostly;
+unsigned int sysctl_net_ll_poll __read_mostly;
 EXPORT_SYMBOL_GPL(sysctl_net_ll_poll);
 #endif
 
-- 
cgit v0.10.2


From 9a3c71aa802499e0b1db2788ccc75a56c5f00555 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Fri, 14 Jun 2013 16:33:35 +0300
Subject: net: convert low latency sockets to sched_clock()

Use sched_clock() instead of get_cycles().
We can use sched_clock() because we don't care much about accuracy.
Remove the dependency on X86_TSC

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index 44e2f70..6930cbd 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -21,10 +21,6 @@
  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  */
 
-/*
- * For now this depends on CONFIG_X86_TSC
- */
-
 #ifndef _LINUX_NET_LL_POLL_H
 #define _LINUX_NET_LL_POLL_H
 
@@ -40,13 +36,19 @@ extern unsigned int sysctl_net_ll_poll __read_mostly;
 #define LL_FLUSH_FAILED		-1
 #define LL_FLUSH_BUSY		-2
 
-/* we don't mind a ~2.5% imprecision */
-#define TSC_MHZ (tsc_khz >> 10)
-
-static inline cycles_t ll_end_time(void)
+/* we can use sched_clock() because we don't care much about precision
+ * we only care that the average is bounded
+ */
+static inline u64 ll_end_time(void)
 {
-	return (cycles_t)TSC_MHZ * ACCESS_ONCE(sysctl_net_ll_poll)
-			+ get_cycles();
+	u64 end_time = ACCESS_ONCE(sysctl_net_ll_poll);
+
+	/* we don't mind a ~2.5% imprecision
+	 * sysctl_net_ll_poll is a u_int so this can't overflow
+	 */
+	end_time = (end_time << 10) + sched_clock();
+
+	return end_time;
 }
 
 static inline bool sk_valid_ll(struct sock *sk)
@@ -55,16 +57,15 @@ static inline bool sk_valid_ll(struct sock *sk)
 	       !need_resched() && !signal_pending(current);
 }
 
-static inline bool can_poll_ll(cycles_t end_time)
+static inline bool can_poll_ll(u64 end_time)
 {
-	return !time_after((unsigned long)get_cycles(),
-			    (unsigned long)end_time);
+	return !time_after64(sched_clock(), end_time);
 }
 
 static inline bool sk_poll_ll(struct sock *sk, int nonblock)
 {
-	cycles_t end_time = ll_end_time();
 	const struct net_device_ops *ops;
+	u64 end_time = ll_end_time();
 	struct napi_struct *napi;
 	int rc = false;
 
@@ -117,7 +118,7 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 
 #else /* CONFIG_NET_LL_RX_POLL */
 
-static inline cycles_t ll_end_time(void)
+static inline u64 ll_end_time(void)
 {
 	return 0;
 }
@@ -140,7 +141,7 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 {
 }
 
-static inline bool can_poll_ll(cycles_t end_time)
+static inline bool can_poll_ll(u64 end_time)
 {
 	return false;
 }
diff --git a/net/Kconfig b/net/Kconfig
index d6a9ce6..e591668 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -245,7 +245,6 @@ config NETPRIO_CGROUP
 
 config NET_LL_RX_POLL
 	bool "Low Latency Receive Poll"
-	depends on X86_TSC
 	default n
 	---help---
 	  Support Low Latency Receive Queue Poll.
-- 
cgit v0.10.2


From 89bf1b5a683df497c572c4d3bd3f9c9aa919d773 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Fri, 14 Jun 2013 16:33:46 +0300
Subject: net: remove NET_LL_RX_POLL config menue

Remove NET_LL_RX_POLL from the config menu.
Change default to y.
Busy polling still needs to be enabled at run time.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/Kconfig b/net/Kconfig
index e591668..51da839 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -244,15 +244,8 @@ config NETPRIO_CGROUP
 	  a per-interface basis
 
 config NET_LL_RX_POLL
-	bool "Low Latency Receive Poll"
-	default n
-	---help---
-	  Support Low Latency Receive Queue Poll.
-	  (For network card drivers which support this option.)
-	  When waiting for data in read or poll call directly into the the device driver
-	  to flush packets which may be pending on the device queues into the stack.
-
-	  If unsure, say N.
+	boolean
+	default y
 
 config BQL
 	boolean
-- 
cgit v0.10.2


From dafcc4380deec21d160c31411f33c8813f67f517 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Fri, 14 Jun 2013 16:33:57 +0300
Subject: net: add socket option for low latency polling

adds a socket option for low latency polling.
This allows overriding the global sysctl value with a per-socket one.
Unexport sysctl_net_ll_poll since for now it's not needed in modules.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index eee6ea7..4885825 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -81,4 +81,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/avr32/include/uapi/asm/socket.h b/arch/avr32/include/uapi/asm/socket.h
index 37401f5..79b6179 100644
--- a/arch/avr32/include/uapi/asm/socket.h
+++ b/arch/avr32/include/uapi/asm/socket.h
@@ -74,4 +74,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* __ASM_AVR32_SOCKET_H */
diff --git a/arch/cris/include/uapi/asm/socket.h b/arch/cris/include/uapi/asm/socket.h
index ba409c9..47b1ec5 100644
--- a/arch/cris/include/uapi/asm/socket.h
+++ b/arch/cris/include/uapi/asm/socket.h
@@ -76,6 +76,8 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _ASM_SOCKET_H */
 
 
diff --git a/arch/frv/include/uapi/asm/socket.h b/arch/frv/include/uapi/asm/socket.h
index 31dbb5d..dbc0852 100644
--- a/arch/frv/include/uapi/asm/socket.h
+++ b/arch/frv/include/uapi/asm/socket.h
@@ -74,5 +74,7 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _ASM_SOCKET_H */
 
diff --git a/arch/h8300/include/uapi/asm/socket.h b/arch/h8300/include/uapi/asm/socket.h
index 5d1c6d0..a38d38a 100644
--- a/arch/h8300/include/uapi/asm/socket.h
+++ b/arch/h8300/include/uapi/asm/socket.h
@@ -74,4 +74,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h
index 6b4329f..d3358b7 100644
--- a/arch/ia64/include/uapi/asm/socket.h
+++ b/arch/ia64/include/uapi/asm/socket.h
@@ -83,4 +83,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _ASM_IA64_SOCKET_H */
diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h
index 2a3b59e..44aaf46 100644
--- a/arch/m32r/include/uapi/asm/socket.h
+++ b/arch/m32r/include/uapi/asm/socket.h
@@ -74,4 +74,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _ASM_M32R_SOCKET_H */
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 3b21150..6a07992 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -92,4 +92,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h
index b4ce844..db80fd3 100644
--- a/arch/mn10300/include/uapi/asm/socket.h
+++ b/arch/mn10300/include/uapi/asm/socket.h
@@ -74,4 +74,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 70c512a..f866fff 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -73,6 +73,8 @@
 
 #define SO_SELECT_ERR_QUEUE	0x4026
 
+#define SO_LL			0x4027
+
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
index a36daf3..405fb09 100644
--- a/arch/powerpc/include/uapi/asm/socket.h
+++ b/arch/powerpc/include/uapi/asm/socket.h
@@ -81,4 +81,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif	/* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h
index 2dacb306..0c5105fb 100644
--- a/arch/s390/include/uapi/asm/socket.h
+++ b/arch/s390/include/uapi/asm/socket.h
@@ -80,4 +80,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 89f49b6..b46c3fa 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -70,6 +70,8 @@
 
 #define SO_SELECT_ERR_QUEUE	0x0029
 
+#define SO_LL			0x0030
+
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION		0x5001
 #define SO_SECURITY_ENCRYPTION_TRANSPORT	0x5002
diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h
index a8f44f5..b21ace4 100644
--- a/arch/xtensa/include/uapi/asm/socket.h
+++ b/arch/xtensa/include/uapi/asm/socket.h
@@ -85,4 +85,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif	/* _XTENSA_SOCKET_H */
diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index 6930cbd..fcc7c36 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -39,12 +39,12 @@ extern unsigned int sysctl_net_ll_poll __read_mostly;
 /* we can use sched_clock() because we don't care much about precision
  * we only care that the average is bounded
  */
-static inline u64 ll_end_time(void)
+static inline u64 ll_end_time(struct sock *sk)
 {
-	u64 end_time = ACCESS_ONCE(sysctl_net_ll_poll);
+	u64 end_time = ACCESS_ONCE(sk->sk_ll_usec);
 
 	/* we don't mind a ~2.5% imprecision
-	 * sysctl_net_ll_poll is a u_int so this can't overflow
+	 * sk->sk_ll_usec is a u_int so this can't overflow
 	 */
 	end_time = (end_time << 10) + sched_clock();
 
@@ -53,7 +53,7 @@ static inline u64 ll_end_time(void)
 
 static inline bool sk_valid_ll(struct sock *sk)
 {
-	return sysctl_net_ll_poll && sk->sk_napi_id &&
+	return sk->sk_ll_usec && sk->sk_napi_id &&
 	       !need_resched() && !signal_pending(current);
 }
 
@@ -65,7 +65,7 @@ static inline bool can_poll_ll(u64 end_time)
 static inline bool sk_poll_ll(struct sock *sk, int nonblock)
 {
 	const struct net_device_ops *ops;
-	u64 end_time = ll_end_time();
+	u64 end_time = ll_end_time(sk);
 	struct napi_struct *napi;
 	int rc = false;
 
@@ -118,7 +118,7 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 
 #else /* CONFIG_NET_LL_RX_POLL */
 
-static inline u64 ll_end_time(void)
+static inline u64 ll_end_time(struct sock *sk)
 {
 	return 0;
 }
diff --git a/include/net/sock.h b/include/net/sock.h
index ac8e181..21db792 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -230,6 +230,7 @@ struct cg_proto;
   *	@sk_wmem_queued: persistent queue size
   *	@sk_forward_alloc: space allocated forward
   *	@sk_napi_id: id of the last napi context to receive data for sk
+  *	@sk_ll_usec: usecs to busypoll when there is no data
   *	@sk_allocation: allocation mode
   *	@sk_sndbuf: size of send buffer in bytes
   *	@sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE,
@@ -328,6 +329,7 @@ struct sock {
 #endif
 #ifdef CONFIG_NET_LL_RX_POLL
 	unsigned int		sk_napi_id;
+	unsigned int		sk_ll_usec;
 #endif
 	atomic_t		sk_drops;
 	int			sk_rcvbuf;
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index c5d2e3a..ca3a20d 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -76,4 +76,6 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
+#define SO_LL			46
+
 #endif /* __ASM_GENERIC_SOCKET_H */
diff --git a/net/core/sock.c b/net/core/sock.c
index 788c0da..1e744b1 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -913,6 +913,19 @@ set_rcvbuf:
 		sock_valbool_flag(sk, SOCK_SELECT_ERR_QUEUE, valbool);
 		break;
 
+#ifdef CONFIG_NET_LL_RX_POLL
+	case SO_LL:
+		/* allow unprivileged users to decrease the value */
+		if ((val > sk->sk_ll_usec) && !capable(CAP_NET_ADMIN))
+			ret = -EPERM;
+		else {
+			if (val < 0)
+				ret = -EINVAL;
+			else
+				sk->sk_ll_usec = val;
+		}
+		break;
+#endif
 	default:
 		ret = -ENOPROTOOPT;
 		break;
@@ -1170,6 +1183,12 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		v.val = sock_flag(sk, SOCK_SELECT_ERR_QUEUE);
 		break;
 
+#ifdef CONFIG_NET_LL_RX_POLL
+	case SO_LL:
+		v.val = sk->sk_ll_usec;
+		break;
+#endif
+
 	default:
 		return -ENOPROTOOPT;
 	}
@@ -2288,6 +2307,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 
 #ifdef CONFIG_NET_LL_RX_POLL
 	sk->sk_napi_id		=	0;
+	sk->sk_ll_usec		=	sysctl_net_ll_poll;
 #endif
 
 	/*
diff --git a/net/socket.c b/net/socket.c
index caaffa1..3eec3f7 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -108,7 +108,6 @@
 
 #ifdef CONFIG_NET_LL_RX_POLL
 unsigned int sysctl_net_ll_poll __read_mostly;
-EXPORT_SYMBOL_GPL(sysctl_net_ll_poll);
 #endif
 
 static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
-- 
cgit v0.10.2


From 8941bbcd572a8860ad03c76e2f3d1dafa820b842 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:36 -0400
Subject: tipc: update code comments to reflect new uapi header path

Files tipc.h and tipc_config.h were moved to uapi directory, but
the corresponding comments were not updated at the same time.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/tipc.h b/include/uapi/linux/tipc.h
index f2d9009..852373d 100644
--- a/include/uapi/linux/tipc.h
+++ b/include/uapi/linux/tipc.h
@@ -1,5 +1,5 @@
 /*
- * include/linux/tipc.h: Include file for TIPC socket interface
+ * include/uapi/linux/tipc.h: Header for TIPC socket interface
  *
  * Copyright (c) 2003-2006, Ericsson AB
  * Copyright (c) 2005, 2010-2011, Wind River Systems
diff --git a/include/uapi/linux/tipc_config.h b/include/uapi/linux/tipc_config.h
index 0b1e3f2..6b0bff0 100644
--- a/include/uapi/linux/tipc_config.h
+++ b/include/uapi/linux/tipc_config.h
@@ -1,5 +1,5 @@
 /*
- * include/linux/tipc_config.h: Include file for TIPC configuration interface
+ * include/uapi/linux/tipc_config.h: Header for TIPC configuration interface
  *
  * Copyright (c) 2003-2006, Ericsson AB
  * Copyright (c) 2005-2007, 2010-2011, Wind River Systems
-- 
cgit v0.10.2


From cc79dd1ba9c1021c2ac6ae200a65ec38ee8db351 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:37 -0400
Subject: tipc: change socket buffer overflow control to respect sk_rcvbuf

As per feedback from the netdev community, we change the buffer
overflow protection algorithm in receiving sockets so that it
always respects the nominal upper limit set in sk_rcvbuf.

Instead of scaling up from a small sk_rcvbuf value, which leads to
violation of the configured sk_rcvbuf limit, we now calculate the
weighted per-message limit by scaling down from a much bigger value,
still in the same field, according to the importance priority of the
received message.

To allow for administrative tunability of the socket receive buffer
size, we create a tipc_rmem sysctl variable to allow the user to
configure an even bigger value via sysctl command.  It is a size of
three (min/default/max) to be consistent with things like tcp_rmem.

By default, the value initialized in tipc_rmem[1] is equal to the
receive socket size needed by a TIPC_CRITICAL_IMPORTANCE message.
This value is also set as the default value of sk_rcvbuf.

Originally-by: Jon Maloy <jon.maloy@ericsson.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
[Ying: added sysctl variation to Jon's original patch]
Signed-off-by: Ying Xue <ying.xue@windriver.com>
[PG: don't compile sysctl.c if not config'd; add Documentation]
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index 85ab72d..5369879 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -26,7 +26,7 @@ Table : Subdirectories in /proc/sys/net
  ipv4      IP version 4        x25        X.25 protocol
  ipx       IPX                 token-ring IBM token ring
  bridge    Bridging            decnet     DEC net
- ipv6      IP version 6
+ ipv6      IP version 6        tipc       TIPC
 ..............................................................................
 
 1. /proc/sys/net/core - Network core options
@@ -207,3 +207,18 @@ IPX.
 The /proc/net/ipx_route  table  holds  a list of IPX routes. For each route it
 gives the  destination  network, the router node (or Directly) and the network
 address of the router (or Connected) for internal networks.
+
+6. TIPC
+-------------------------------------------------------
+
+The TIPC protocol now has a tunable for the receive memory, similar to the
+tcp_rmem - i.e. a vector of 3 INTEGERs: (min, default, max)
+
+    # cat /proc/sys/net/tipc/tipc_rmem
+    4252725 34021800        68043600
+    #
+
+The max value is set to CONN_OVERLOAD_LIMIT, and the default and min values
+are scaled (shifted) versions of that same value.  Note that the min value
+is not at this point in time used in any meaningful way, but the triplet is
+preserved in order to be consistent with things like tcp_rmem.
diff --git a/net/tipc/Makefile b/net/tipc/Makefile
index 4df8e02..02636d0 100644
--- a/net/tipc/Makefile
+++ b/net/tipc/Makefile
@@ -11,3 +11,4 @@ tipc-y	+= addr.o bcast.o bearer.o config.o \
 	   socket.o log.o eth_media.o
 
 tipc-$(CONFIG_TIPC_MEDIA_IB)	+= ib_media.o
+tipc-$(CONFIG_SYSCTL)		+= sysctl.o
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 7ec2c1e..b0e42a0 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -39,6 +39,7 @@
 #include "name_table.h"
 #include "subscr.h"
 #include "config.h"
+#include "port.h"
 
 #include <linux/module.h>
 
@@ -50,7 +51,7 @@ u32 tipc_own_addr __read_mostly;
 int tipc_max_ports __read_mostly;
 int tipc_net_id __read_mostly;
 int tipc_remote_management __read_mostly;
-
+int sysctl_tipc_rmem[3] __read_mostly;	/* min/default/max */
 
 /**
  * tipc_buf_acquire - creates a TIPC message buffer
@@ -118,6 +119,7 @@ static void tipc_core_stop(void)
 	tipc_nametbl_stop();
 	tipc_ref_table_stop();
 	tipc_socket_stop();
+	tipc_unregister_sysctl();
 }
 
 /**
@@ -142,13 +144,14 @@ static int tipc_core_start(void)
 		res = tipc_netlink_start();
 	if (!res)
 		res = tipc_socket_init();
+	if (!res)
+		res = tipc_register_sysctl();
 	if (res)
 		tipc_core_stop();
 
 	return res;
 }
 
-
 static int __init tipc_init(void)
 {
 	int res;
@@ -160,6 +163,11 @@ static int __init tipc_init(void)
 	tipc_max_ports = CONFIG_TIPC_PORTS;
 	tipc_net_id = 4711;
 
+	sysctl_tipc_rmem[0] = CONN_OVERLOAD_LIMIT >> 4 << TIPC_LOW_IMPORTANCE;
+	sysctl_tipc_rmem[1] = CONN_OVERLOAD_LIMIT >> 4 <<
+			      TIPC_CRITICAL_IMPORTANCE;
+	sysctl_tipc_rmem[2] = CONN_OVERLOAD_LIMIT;
+
 	res = tipc_core_start();
 	if (res)
 		pr_err("Unable to start in single node mode\n");
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 0207db0..fe7f2b7 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -80,6 +80,7 @@ extern u32 tipc_own_addr __read_mostly;
 extern int tipc_max_ports __read_mostly;
 extern int tipc_net_id __read_mostly;
 extern int tipc_remote_management __read_mostly;
+extern int sysctl_tipc_rmem[3] __read_mostly;
 
 /*
  * Other global variables
@@ -97,6 +98,14 @@ extern void tipc_netlink_stop(void);
 extern int  tipc_socket_init(void);
 extern void tipc_socket_stop(void);
 
+#ifdef CONFIG_SYSCTL
+extern int tipc_register_sysctl(void);
+extern void tipc_unregister_sysctl(void);
+#else
+#define tipc_register_sysctl() 0
+#define tipc_unregister_sysctl()
+#endif
+
 /*
  * TIPC timer and signal code
  */
diff --git a/net/tipc/port.h b/net/tipc/port.h
index fb66e2e..2485649 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -43,6 +43,8 @@
 #include "node_subscr.h"
 
 #define TIPC_FLOW_CONTROL_WIN 512
+#define CONN_OVERLOAD_LIMIT	((TIPC_FLOW_CONTROL_WIN * 2 + 1) * \
+				SKB_TRUESIZE(TIPC_MAX_USER_MSG_SIZE))
 
 typedef void (*tipc_msg_err_event) (void *usr_handle, u32 portref,
 		struct sk_buff **buf, unsigned char const *data,
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 515ce38..aba4255 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -43,8 +43,6 @@
 #define SS_LISTENING	-1	/* socket is listening */
 #define SS_READY	-2	/* socket is connectionless */
 
-#define CONN_OVERLOAD_LIMIT	((TIPC_FLOW_CONTROL_WIN * 2 + 1) * \
-				SKB_TRUESIZE(TIPC_MAX_USER_MSG_SIZE))
 #define CONN_TIMEOUT_DEFAULT	8000	/* default connect timeout = 8s */
 
 struct tipc_sock {
@@ -203,6 +201,7 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol,
 
 	sock_init_data(sock, sk);
 	sk->sk_backlog_rcv = backlog_rcv;
+	sk->sk_rcvbuf = sysctl_tipc_rmem[1];
 	sk->sk_data_ready = tipc_data_ready;
 	sk->sk_write_space = tipc_write_space;
 	tipc_sk(sk)->p = tp_ptr;
@@ -1233,10 +1232,10 @@ static u32 filter_connect(struct tipc_sock *tsock, struct sk_buff **buf)
  * For all connectionless messages, by default new queue limits are
  * as belows:
  *
- * TIPC_LOW_IMPORTANCE       (5MB)
- * TIPC_MEDIUM_IMPORTANCE    (10MB)
- * TIPC_HIGH_IMPORTANCE      (20MB)
- * TIPC_CRITICAL_IMPORTANCE  (40MB)
+ * TIPC_LOW_IMPORTANCE       (4 MB)
+ * TIPC_MEDIUM_IMPORTANCE    (8 MB)
+ * TIPC_HIGH_IMPORTANCE      (16 MB)
+ * TIPC_CRITICAL_IMPORTANCE  (32 MB)
  *
  * Returns overload limit according to corresponding message importance
  */
@@ -1246,9 +1245,10 @@ static unsigned int rcvbuf_limit(struct sock *sk, struct sk_buff *buf)
 	unsigned int limit;
 
 	if (msg_connected(msg))
-		limit = CONN_OVERLOAD_LIMIT;
+		limit = sysctl_tipc_rmem[2];
 	else
-		limit = sk->sk_rcvbuf << (msg_importance(msg) + 5);
+		limit = sk->sk_rcvbuf >> TIPC_CRITICAL_IMPORTANCE <<
+			msg_importance(msg);
 	return limit;
 }
 
@@ -1847,7 +1847,8 @@ static const struct net_proto_family tipc_family_ops = {
 static struct proto tipc_proto = {
 	.name		= "TIPC",
 	.owner		= THIS_MODULE,
-	.obj_size	= sizeof(struct tipc_sock)
+	.obj_size	= sizeof(struct tipc_sock),
+	.sysctl_rmem	= sysctl_tipc_rmem
 };
 
 /**
diff --git a/net/tipc/sysctl.c b/net/tipc/sysctl.c
new file mode 100644
index 0000000..f3fef93
--- /dev/null
+++ b/net/tipc/sysctl.c
@@ -0,0 +1,64 @@
+/*
+ * net/tipc/sysctl.c: sysctl interface to TIPC subsystem
+ *
+ * Copyright (c) 2013, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "core.h"
+
+#include <linux/sysctl.h>
+
+static struct ctl_table_header *tipc_ctl_hdr;
+
+static struct ctl_table tipc_table[] = {
+	{
+		.procname	= "tipc_rmem",
+		.data		= &sysctl_tipc_rmem,
+		.maxlen		= sizeof(sysctl_tipc_rmem),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{}
+};
+
+int tipc_register_sysctl(void)
+{
+	tipc_ctl_hdr = register_net_sysctl(&init_net, "net/tipc", tipc_table);
+	if (tipc_ctl_hdr == NULL)
+		return -ENOMEM;
+	return 0;
+}
+
+void tipc_unregister_sysctl(void)
+{
+	unregister_net_sysctl_table(tipc_ctl_hdr);
+}
-- 
cgit v0.10.2


From 5d21cb70db0122507cd18f58b4a9112583c1e075 Mon Sep 17 00:00:00 2001
From: Erik Hugne <erik.hugne@ericsson.com>
Date: Mon, 17 Jun 2013 10:54:38 -0400
Subject: tipc: allow implicit connect for stream sockets

TIPC's implied connect feature, aka piggyback connect, allows
applications to save one syscall and all SYN/SYN-ACK signalling
overhead when setting up a connection.  Until now, this has only
been supported for SEQPACKET sockets.  Here, we make it possible
to use this feature even with stream sockets.

At the connecting side, the connection is completed when the
first data message arrives from the accepting peer.  This means
that we must allow the connecting user to call blocking recv()
before the socket has reached state SS_CONNECTED.  So we must must
relax the state machine check at recv_stream(), and allow the
recv() call even if socket is in state SS_CONNECTING.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index aba4255..d5fa708f 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -518,8 +518,7 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
 			res = -EISCONN;
 			goto exit;
 		}
-		if ((tport->published) ||
-		    ((sock->type == SOCK_STREAM) && (total_len != 0))) {
+		if (tport->published) {
 			res = -EOPNOTSUPP;
 			goto exit;
 		}
@@ -1010,8 +1009,7 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock,
 
 	lock_sock(sk);
 
-	if (unlikely((sock->state == SS_UNCONNECTED) ||
-		     (sock->state == SS_CONNECTING))) {
+	if (unlikely((sock->state == SS_UNCONNECTED))) {
 		res = -ENOTCONN;
 		goto exit;
 	}
-- 
cgit v0.10.2


From c5fa7b3cf3cb22e4ac60485fc2dc187fe012910f Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:39 -0400
Subject: tipc: introduce new TIPC server infrastructure

TIPC has two internal servers, one providing a subscription
service for topology events, and another providing the
configuration interface. These servers have previously been running
in BH context, accessing the TIPC-port (aka native) API directly.
Apart from these servers, even the TIPC socket implementation is
partially built on this API.

As this API may simultaneously be called via different paths and in
different contexts, a complex and costly lock policiy is required
in order to protect TIPC internal resources.

To eliminate the need for this complex lock policiy, we introduce
a new, generic service API that uses kernel sockets for message
passing instead of the native API. Once the toplogy and configuration
servers are converted to use this new service, all code pertaining
to the native API can be removed. This entails a significant
reduction in code amount and complexity, and opens up for a complete
rework of the locking policy in TIPC.

The new service also solves another problem:

As the current topology server works in BH context, it cannot easily
be blocked when sending of events fails due to congestion. In such
cases events may have to be silently dropped, something that is
unacceptable. Therefore, the new service keeps a dedicated outbound
queue receiving messages from BH context. Once messages are
inserted into this queue, we will immediately schedule a work from a
special workqueue. This way, messages/events from the topology server
are in reality sent in process context, and the server can block
if necessary.

Analogously, there is a new workqueue for receiving messages. Once a
notification about an arriving message is received in BH context, we
schedule a work from the receive workqueue to do the job of
receiving the message in process context.

As both sending and receive messages are now finished in processes,
subscribed events cannot be dropped any more.

As of this commit, this new server infrastructure is built, but
not actually yet called by the existing TIPC code, but since the
conversion changes required in order to use it are significant,
the addition is kept here as a separate commit.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/Makefile b/net/tipc/Makefile
index 02636d0..b282f71 100644
--- a/net/tipc/Makefile
+++ b/net/tipc/Makefile
@@ -8,7 +8,7 @@ tipc-y	+= addr.o bcast.o bearer.o config.o \
 	   core.o handler.o link.o discover.o msg.o  \
 	   name_distr.o  subscr.o name_table.o net.o  \
 	   netlink.o node.o node_subscr.o port.o ref.o  \
-	   socket.o log.o eth_media.o
+	   socket.o log.o eth_media.o server.o
 
 tipc-$(CONFIG_TIPC_MEDIA_IB)	+= ib_media.o
 tipc-$(CONFIG_SYSCTL)		+= sysctl.o
diff --git a/net/tipc/core.h b/net/tipc/core.h
index fe7f2b7..be72f8c 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -1,8 +1,8 @@
 /*
  * net/tipc/core.h: Include file for TIPC global declarations
  *
- * Copyright (c) 2005-2006, Ericsson AB
- * Copyright (c) 2005-2007, 2010-2011, Wind River Systems
+ * Copyright (c) 2005-2006, 2013 Ericsson AB
+ * Copyright (c) 2005-2007, 2010-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -97,6 +97,10 @@ extern int  tipc_netlink_start(void);
 extern void tipc_netlink_stop(void);
 extern int  tipc_socket_init(void);
 extern void tipc_socket_stop(void);
+extern int tipc_sock_create_local(int type, struct socket **res);
+extern void tipc_sock_release_local(struct socket *sock);
+extern int tipc_sock_accept_local(struct socket *sock,
+				  struct socket **newsock, int flags);
 
 #ifdef CONFIG_SYSCTL
 extern int tipc_register_sysctl(void);
diff --git a/net/tipc/server.c b/net/tipc/server.c
new file mode 100644
index 0000000..19da5ab
--- /dev/null
+++ b/net/tipc/server.c
@@ -0,0 +1,596 @@
+/*
+ * net/tipc/server.c: TIPC server infrastructure
+ *
+ * Copyright (c) 2012-2013, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "server.h"
+#include "core.h"
+#include <net/sock.h>
+
+/* Number of messages to send before rescheduling */
+#define MAX_SEND_MSG_COUNT	25
+#define MAX_RECV_MSG_COUNT	25
+#define CF_CONNECTED		1
+
+#define sock2con(x) ((struct tipc_conn *)(x)->sk_user_data)
+
+/**
+ * struct tipc_conn - TIPC connection structure
+ * @kref: reference counter to connection object
+ * @conid: connection identifier
+ * @sock: socket handler associated with connection
+ * @flags: indicates connection state
+ * @server: pointer to connected server
+ * @rwork: receive work item
+ * @usr_data: user-specified field
+ * @rx_action: what to do when connection socket is active
+ * @outqueue: pointer to first outbound message in queue
+ * @outqueue_lock: controll access to the outqueue
+ * @outqueue: list of connection objects for its server
+ * @swork: send work item
+ */
+struct tipc_conn {
+	struct kref kref;
+	int conid;
+	struct socket *sock;
+	unsigned long flags;
+	struct tipc_server *server;
+	struct work_struct rwork;
+	int (*rx_action) (struct tipc_conn *con);
+	void *usr_data;
+	struct list_head outqueue;
+	spinlock_t outqueue_lock;
+	struct work_struct swork;
+};
+
+/* An entry waiting to be sent */
+struct outqueue_entry {
+	struct list_head list;
+	struct kvec iov;
+	struct sockaddr_tipc dest;
+};
+
+static void tipc_recv_work(struct work_struct *work);
+static void tipc_send_work(struct work_struct *work);
+static void tipc_clean_outqueues(struct tipc_conn *con);
+
+static void tipc_conn_kref_release(struct kref *kref)
+{
+	struct tipc_conn *con = container_of(kref, struct tipc_conn, kref);
+	struct tipc_server *s = con->server;
+
+	if (con->sock) {
+		tipc_sock_release_local(con->sock);
+		con->sock = NULL;
+	}
+
+	tipc_clean_outqueues(con);
+
+	if (con->conid)
+		s->tipc_conn_shutdown(con->conid, con->usr_data);
+
+	kfree(con);
+}
+
+static void conn_put(struct tipc_conn *con)
+{
+	kref_put(&con->kref, tipc_conn_kref_release);
+}
+
+static void conn_get(struct tipc_conn *con)
+{
+	kref_get(&con->kref);
+}
+
+static struct tipc_conn *tipc_conn_lookup(struct tipc_server *s, int conid)
+{
+	struct tipc_conn *con;
+
+	spin_lock_bh(&s->idr_lock);
+	con = idr_find(&s->conn_idr, conid);
+	if (con)
+		conn_get(con);
+	spin_unlock_bh(&s->idr_lock);
+	return con;
+}
+
+static void sock_data_ready(struct sock *sk, int unused)
+{
+	struct tipc_conn *con;
+
+	read_lock(&sk->sk_callback_lock);
+	con = sock2con(sk);
+	if (con && test_bit(CF_CONNECTED, &con->flags)) {
+		conn_get(con);
+		if (!queue_work(con->server->rcv_wq, &con->rwork))
+			conn_put(con);
+	}
+	read_unlock(&sk->sk_callback_lock);
+}
+
+static void sock_write_space(struct sock *sk)
+{
+	struct tipc_conn *con;
+
+	read_lock(&sk->sk_callback_lock);
+	con = sock2con(sk);
+	if (con && test_bit(CF_CONNECTED, &con->flags)) {
+		conn_get(con);
+		if (!queue_work(con->server->send_wq, &con->swork))
+			conn_put(con);
+	}
+	read_unlock(&sk->sk_callback_lock);
+}
+
+static void tipc_register_callbacks(struct socket *sock, struct tipc_conn *con)
+{
+	struct sock *sk = sock->sk;
+
+	write_lock_bh(&sk->sk_callback_lock);
+
+	sk->sk_data_ready = sock_data_ready;
+	sk->sk_write_space = sock_write_space;
+	sk->sk_user_data = con;
+
+	con->sock = sock;
+
+	write_unlock_bh(&sk->sk_callback_lock);
+}
+
+static void tipc_unregister_callbacks(struct tipc_conn *con)
+{
+	struct sock *sk = con->sock->sk;
+
+	write_lock_bh(&sk->sk_callback_lock);
+	sk->sk_user_data = NULL;
+	write_unlock_bh(&sk->sk_callback_lock);
+}
+
+static void tipc_close_conn(struct tipc_conn *con)
+{
+	struct tipc_server *s = con->server;
+
+	if (test_and_clear_bit(CF_CONNECTED, &con->flags)) {
+		spin_lock_bh(&s->idr_lock);
+		idr_remove(&s->conn_idr, con->conid);
+		s->idr_in_use--;
+		spin_unlock_bh(&s->idr_lock);
+
+		tipc_unregister_callbacks(con);
+
+		/* We shouldn't flush pending works as we may be in the
+		 * thread. In fact the races with pending rx/tx work structs
+		 * are harmless for us here as we have already deleted this
+		 * connection from server connection list and set
+		 * sk->sk_user_data to 0 before releasing connection object.
+		 */
+		kernel_sock_shutdown(con->sock, SHUT_RDWR);
+
+		conn_put(con);
+	}
+}
+
+static struct tipc_conn *tipc_alloc_conn(struct tipc_server *s)
+{
+	struct tipc_conn *con;
+	int ret;
+
+	con = kzalloc(sizeof(struct tipc_conn), GFP_ATOMIC);
+	if (!con)
+		return ERR_PTR(-ENOMEM);
+
+	kref_init(&con->kref);
+	INIT_LIST_HEAD(&con->outqueue);
+	spin_lock_init(&con->outqueue_lock);
+	INIT_WORK(&con->swork, tipc_send_work);
+	INIT_WORK(&con->rwork, tipc_recv_work);
+
+	spin_lock_bh(&s->idr_lock);
+	ret = idr_alloc(&s->conn_idr, con, 0, 0, GFP_ATOMIC);
+	if (ret < 0) {
+		kfree(con);
+		spin_unlock_bh(&s->idr_lock);
+		return ERR_PTR(-ENOMEM);
+	}
+	con->conid = ret;
+	s->idr_in_use++;
+	spin_unlock_bh(&s->idr_lock);
+
+	set_bit(CF_CONNECTED, &con->flags);
+	con->server = s;
+
+	return con;
+}
+
+static int tipc_receive_from_sock(struct tipc_conn *con)
+{
+	struct msghdr msg = {};
+	struct tipc_server *s = con->server;
+	struct sockaddr_tipc addr;
+	struct kvec iov;
+	void *buf;
+	int ret;
+
+	buf = kmem_cache_alloc(s->rcvbuf_cache, GFP_ATOMIC);
+	if (!buf) {
+		ret = -ENOMEM;
+		goto out_close;
+	}
+
+	iov.iov_base = buf;
+	iov.iov_len = s->max_rcvbuf_size;
+	msg.msg_name = &addr;
+	ret = kernel_recvmsg(con->sock, &msg, &iov, 1, iov.iov_len,
+			     MSG_DONTWAIT);
+	if (ret <= 0) {
+		kmem_cache_free(s->rcvbuf_cache, buf);
+		goto out_close;
+	}
+
+	s->tipc_conn_recvmsg(con->conid, &addr, con->usr_data, buf, ret);
+
+	kmem_cache_free(s->rcvbuf_cache, buf);
+
+	return 0;
+
+out_close:
+	if (ret != -EWOULDBLOCK)
+		tipc_close_conn(con);
+	else if (ret == 0)
+		/* Don't return success if we really got EOF */
+		ret = -EAGAIN;
+
+	return ret;
+}
+
+static int tipc_accept_from_sock(struct tipc_conn *con)
+{
+	struct tipc_server *s = con->server;
+	struct socket *sock = con->sock;
+	struct socket *newsock;
+	struct tipc_conn *newcon;
+	int ret;
+
+	ret = tipc_sock_accept_local(sock, &newsock, O_NONBLOCK);
+	if (ret < 0)
+		return ret;
+
+	newcon = tipc_alloc_conn(con->server);
+	if (IS_ERR(newcon)) {
+		ret = PTR_ERR(newcon);
+		sock_release(newsock);
+		return ret;
+	}
+
+	newcon->rx_action = tipc_receive_from_sock;
+	tipc_register_callbacks(newsock, newcon);
+
+	/* Notify that new connection is incoming */
+	newcon->usr_data = s->tipc_conn_new(newcon->conid);
+
+	/* Wake up receive process in case of 'SYN+' message */
+	newsock->sk->sk_data_ready(newsock->sk, 0);
+	return ret;
+}
+
+static struct socket *tipc_create_listen_sock(struct tipc_conn *con)
+{
+	struct tipc_server *s = con->server;
+	struct socket *sock = NULL;
+	int ret;
+
+	ret = tipc_sock_create_local(s->type, &sock);
+	if (ret < 0)
+		return NULL;
+	ret = kernel_setsockopt(sock, SOL_TIPC, TIPC_IMPORTANCE,
+				(char *)&s->imp, sizeof(s->imp));
+	if (ret < 0)
+		goto create_err;
+	ret = kernel_bind(sock, (struct sockaddr *)s->saddr, sizeof(*s->saddr));
+	if (ret < 0)
+		goto create_err;
+
+	switch (s->type) {
+	case SOCK_STREAM:
+	case SOCK_SEQPACKET:
+		con->rx_action = tipc_accept_from_sock;
+
+		ret = kernel_listen(sock, 0);
+		if (ret < 0)
+			goto create_err;
+		break;
+	case SOCK_DGRAM:
+	case SOCK_RDM:
+		con->rx_action = tipc_receive_from_sock;
+		break;
+	default:
+		pr_err("Unknown socket type %d\n", s->type);
+		goto create_err;
+	}
+	return sock;
+
+create_err:
+	sock_release(sock);
+	con->sock = NULL;
+	return NULL;
+}
+
+static int tipc_open_listening_sock(struct tipc_server *s)
+{
+	struct socket *sock;
+	struct tipc_conn *con;
+
+	con = tipc_alloc_conn(s);
+	if (IS_ERR(con))
+		return PTR_ERR(con);
+
+	sock = tipc_create_listen_sock(con);
+	if (!sock)
+		return -EINVAL;
+
+	tipc_register_callbacks(sock, con);
+	return 0;
+}
+
+static struct outqueue_entry *tipc_alloc_entry(void *data, int len)
+{
+	struct outqueue_entry *entry;
+	void *buf;
+
+	entry = kmalloc(sizeof(struct outqueue_entry), GFP_ATOMIC);
+	if (!entry)
+		return NULL;
+
+	buf = kmalloc(len, GFP_ATOMIC);
+	if (!buf) {
+		kfree(entry);
+		return NULL;
+	}
+
+	memcpy(buf, data, len);
+	entry->iov.iov_base = buf;
+	entry->iov.iov_len = len;
+
+	return entry;
+}
+
+static void tipc_free_entry(struct outqueue_entry *e)
+{
+	kfree(e->iov.iov_base);
+	kfree(e);
+}
+
+static void tipc_clean_outqueues(struct tipc_conn *con)
+{
+	struct outqueue_entry *e, *safe;
+
+	spin_lock_bh(&con->outqueue_lock);
+	list_for_each_entry_safe(e, safe, &con->outqueue, list) {
+		list_del(&e->list);
+		tipc_free_entry(e);
+	}
+	spin_unlock_bh(&con->outqueue_lock);
+}
+
+int tipc_conn_sendmsg(struct tipc_server *s, int conid,
+		      struct sockaddr_tipc *addr, void *data, size_t len)
+{
+	struct outqueue_entry *e;
+	struct tipc_conn *con;
+
+	con = tipc_conn_lookup(s, conid);
+	if (!con)
+		return -EINVAL;
+
+	e = tipc_alloc_entry(data, len);
+	if (!e) {
+		conn_put(con);
+		return -ENOMEM;
+	}
+
+	if (addr)
+		memcpy(&e->dest, addr, sizeof(struct sockaddr_tipc));
+
+	spin_lock_bh(&con->outqueue_lock);
+	list_add_tail(&e->list, &con->outqueue);
+	spin_unlock_bh(&con->outqueue_lock);
+
+	if (test_bit(CF_CONNECTED, &con->flags))
+		if (!queue_work(s->send_wq, &con->swork))
+			conn_put(con);
+
+	return 0;
+}
+
+void tipc_conn_terminate(struct tipc_server *s, int conid)
+{
+	struct tipc_conn *con;
+
+	con = tipc_conn_lookup(s, conid);
+	if (con) {
+		tipc_close_conn(con);
+		conn_put(con);
+	}
+}
+
+static void tipc_send_to_sock(struct tipc_conn *con)
+{
+	int count = 0;
+	struct tipc_server *s = con->server;
+	struct outqueue_entry *e;
+	struct msghdr msg;
+	int ret;
+
+	spin_lock_bh(&con->outqueue_lock);
+	while (1) {
+		e = list_entry(con->outqueue.next, struct outqueue_entry,
+			       list);
+		if ((struct list_head *) e == &con->outqueue)
+			break;
+		spin_unlock_bh(&con->outqueue_lock);
+
+		memset(&msg, 0, sizeof(msg));
+		msg.msg_flags = MSG_DONTWAIT;
+
+		if (s->type == SOCK_DGRAM || s->type == SOCK_RDM) {
+			msg.msg_name = &e->dest;
+			msg.msg_namelen = sizeof(struct sockaddr_tipc);
+		}
+		ret = kernel_sendmsg(con->sock, &msg, &e->iov, 1,
+				     e->iov.iov_len);
+		if (ret == -EWOULDBLOCK || ret == 0) {
+			cond_resched();
+			goto out;
+		} else if (ret < 0) {
+			goto send_err;
+		}
+
+		/* Don't starve users filling buffers */
+		if (++count >= MAX_SEND_MSG_COUNT) {
+			cond_resched();
+			count = 0;
+		}
+
+		spin_lock_bh(&con->outqueue_lock);
+		list_del(&e->list);
+		tipc_free_entry(e);
+	}
+	spin_unlock_bh(&con->outqueue_lock);
+out:
+	return;
+
+send_err:
+	tipc_close_conn(con);
+}
+
+static void tipc_recv_work(struct work_struct *work)
+{
+	struct tipc_conn *con = container_of(work, struct tipc_conn, rwork);
+	int count = 0;
+
+	while (test_bit(CF_CONNECTED, &con->flags)) {
+		if (con->rx_action(con))
+			break;
+
+		/* Don't flood Rx machine */
+		if (++count >= MAX_RECV_MSG_COUNT) {
+			cond_resched();
+			count = 0;
+		}
+	}
+	conn_put(con);
+}
+
+static void tipc_send_work(struct work_struct *work)
+{
+	struct tipc_conn *con = container_of(work, struct tipc_conn, swork);
+
+	if (test_bit(CF_CONNECTED, &con->flags))
+		tipc_send_to_sock(con);
+
+	conn_put(con);
+}
+
+static void tipc_work_stop(struct tipc_server *s)
+{
+	destroy_workqueue(s->rcv_wq);
+	destroy_workqueue(s->send_wq);
+}
+
+static int tipc_work_start(struct tipc_server *s)
+{
+	s->rcv_wq = alloc_workqueue("tipc_rcv", WQ_UNBOUND, 1);
+	if (!s->rcv_wq) {
+		pr_err("can't start tipc receive workqueue\n");
+		return -ENOMEM;
+	}
+
+	s->send_wq = alloc_workqueue("tipc_send", WQ_UNBOUND, 1);
+	if (!s->send_wq) {
+		pr_err("can't start tipc send workqueue\n");
+		destroy_workqueue(s->rcv_wq);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+int tipc_server_start(struct tipc_server *s)
+{
+	int ret;
+
+	spin_lock_init(&s->idr_lock);
+	idr_init(&s->conn_idr);
+	s->idr_in_use = 0;
+
+	s->rcvbuf_cache = kmem_cache_create(s->name, s->max_rcvbuf_size,
+					    0, SLAB_HWCACHE_ALIGN, NULL);
+	if (!s->rcvbuf_cache)
+		return -ENOMEM;
+
+	ret = tipc_work_start(s);
+	if (ret < 0) {
+		kmem_cache_destroy(s->rcvbuf_cache);
+		return ret;
+	}
+	s->enabled = 1;
+
+	return tipc_open_listening_sock(s);
+}
+
+void tipc_server_stop(struct tipc_server *s)
+{
+	struct tipc_conn *con;
+	int total = 0;
+	int id;
+
+	if (!s->enabled)
+		return;
+
+	s->enabled = 0;
+	spin_lock_bh(&s->idr_lock);
+	for (id = 0; total < s->idr_in_use; id++) {
+		con = idr_find(&s->conn_idr, id);
+		if (con) {
+			total++;
+			spin_unlock_bh(&s->idr_lock);
+			tipc_close_conn(con);
+			spin_lock_bh(&s->idr_lock);
+		}
+	}
+	spin_unlock_bh(&s->idr_lock);
+
+	tipc_work_stop(s);
+	kmem_cache_destroy(s->rcvbuf_cache);
+	idr_destroy(&s->conn_idr);
+}
diff --git a/net/tipc/server.h b/net/tipc/server.h
new file mode 100644
index 0000000..98b23f2
--- /dev/null
+++ b/net/tipc/server.h
@@ -0,0 +1,94 @@
+/*
+ * net/tipc/server.h: Include file for TIPC server code
+ *
+ * Copyright (c) 2012-2013, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _TIPC_SERVER_H
+#define _TIPC_SERVER_H
+
+#include "core.h"
+
+#define TIPC_SERVER_NAME_LEN	32
+
+/**
+ * struct tipc_server - TIPC server structure
+ * @conn_idr: identifier set of connection
+ * @idr_lock: protect the connection identifier set
+ * @idr_in_use: amount of allocated identifier entry
+ * @rcvbuf_cache: memory cache of server receive buffer
+ * @rcv_wq: receive workqueue
+ * @send_wq: send workqueue
+ * @max_rcvbuf_size: maximum permitted receive message length
+ * @tipc_conn_new: callback will be called when new connection is incoming
+ * @tipc_conn_shutdown: callback will be called when connection is shut down
+ * @tipc_conn_recvmsg: callback will be called when message arrives
+ * @saddr: TIPC server address
+ * @name: server name
+ * @imp: message importance
+ * @type: socket type
+ * @enabled: identify whether server is launched or not
+ */
+struct tipc_server {
+	struct idr conn_idr;
+	spinlock_t idr_lock;
+	int idr_in_use;
+	struct kmem_cache *rcvbuf_cache;
+	struct workqueue_struct *rcv_wq;
+	struct workqueue_struct *send_wq;
+	int max_rcvbuf_size;
+	void *(*tipc_conn_new) (int conid);
+	void (*tipc_conn_shutdown) (int conid, void *usr_data);
+	void (*tipc_conn_recvmsg) (int conid, struct sockaddr_tipc *addr,
+				   void *usr_data, void *buf, size_t len);
+	struct sockaddr_tipc *saddr;
+	const char name[TIPC_SERVER_NAME_LEN];
+	int imp;
+	int type;
+	int enabled;
+};
+
+int tipc_conn_sendmsg(struct tipc_server *s, int conid,
+		      struct sockaddr_tipc *addr, void *data, size_t len);
+
+/**
+ * tipc_conn_terminate - terminate connection with server
+ *
+ * Note: Must call it in process context since it might sleep
+ */
+void tipc_conn_terminate(struct tipc_server *s, int conid);
+
+int tipc_server_start(struct tipc_server *s);
+
+void tipc_server_stop(struct tipc_server *s);
+
+#endif
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index d5fa708f..bd8e2cd 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2,7 +2,7 @@
  * net/tipc/socket.c: TIPC socket API
  *
  * Copyright (c) 2001-2007, 2012 Ericsson AB
- * Copyright (c) 2004-2008, 2010-2012, Wind River Systems
+ * Copyright (c) 2004-2008, 2010-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -63,12 +63,15 @@ static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf);
 static void wakeupdispatch(struct tipc_port *tport);
 static void tipc_data_ready(struct sock *sk, int len);
 static void tipc_write_space(struct sock *sk);
+static int release(struct socket *sock);
+static int accept(struct socket *sock, struct socket *new_sock, int flags);
 
 static const struct proto_ops packet_ops;
 static const struct proto_ops stream_ops;
 static const struct proto_ops msg_ops;
 
 static struct proto tipc_proto;
+static struct proto tipc_proto_kern;
 
 static int sockets_enabled;
 
@@ -141,7 +144,7 @@ static void reject_rx_queue(struct sock *sk)
 }
 
 /**
- * tipc_create - create a TIPC socket
+ * tipc_sk_create - create a TIPC socket
  * @net: network namespace (must be default network)
  * @sock: pre-allocated socket structure
  * @protocol: protocol indicator (must be 0)
@@ -152,8 +155,8 @@ static void reject_rx_queue(struct sock *sk)
  *
  * Returns 0 on success, errno otherwise
  */
-static int tipc_create(struct net *net, struct socket *sock, int protocol,
-		       int kern)
+static int tipc_sk_create(struct net *net, struct socket *sock, int protocol,
+			  int kern)
 {
 	const struct proto_ops *ops;
 	socket_state state;
@@ -183,7 +186,11 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol,
 	}
 
 	/* Allocate socket's protocol area */
-	sk = sk_alloc(net, AF_TIPC, GFP_KERNEL, &tipc_proto);
+	if (!kern)
+		sk = sk_alloc(net, AF_TIPC, GFP_KERNEL, &tipc_proto);
+	else
+		sk = sk_alloc(net, AF_TIPC, GFP_KERNEL, &tipc_proto_kern);
+
 	if (sk == NULL)
 		return -ENOMEM;
 
@@ -219,6 +226,78 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol,
 }
 
 /**
+ * tipc_sock_create_local - create TIPC socket from inside TIPC module
+ * @type: socket type - SOCK_RDM or SOCK_SEQPACKET
+ *
+ * We cannot use sock_creat_kern here because it bumps module user count.
+ * Since socket owner and creator is the same module we must make sure
+ * that module count remains zero for module local sockets, otherwise
+ * we cannot do rmmod.
+ *
+ * Returns 0 on success, errno otherwise
+ */
+int tipc_sock_create_local(int type, struct socket **res)
+{
+	int rc;
+	struct sock *sk;
+
+	rc = sock_create_lite(AF_TIPC, type, 0, res);
+	if (rc < 0) {
+		pr_err("Failed to create kernel socket\n");
+		return rc;
+	}
+	tipc_sk_create(&init_net, *res, 0, 1);
+
+	sk = (*res)->sk;
+
+	return 0;
+}
+
+/**
+ * tipc_sock_release_local - release socket created by tipc_sock_create_local
+ * @sock: the socket to be released.
+ *
+ * Module reference count is not incremented when such sockets are created,
+ * so we must keep it from being decremented when they are released.
+ */
+void tipc_sock_release_local(struct socket *sock)
+{
+	release(sock);
+	sock->ops = NULL;
+	sock_release(sock);
+}
+
+/**
+ * tipc_sock_accept_local - accept a connection on a socket created
+ * with tipc_sock_create_local. Use this function to avoid that
+ * module reference count is inadvertently incremented.
+ *
+ * @sock:    the accepting socket
+ * @newsock: reference to the new socket to be created
+ * @flags:   socket flags
+ */
+
+int tipc_sock_accept_local(struct socket *sock, struct socket **newsock,
+			    int flags)
+{
+	struct sock *sk = sock->sk;
+	int ret;
+
+	ret = sock_create_lite(sk->sk_family, sk->sk_type,
+			       sk->sk_protocol, newsock);
+	if (ret < 0)
+		return ret;
+
+	ret = accept(sock, *newsock, flags);
+	if (ret < 0) {
+		sock_release(*newsock);
+		return ret;
+	}
+	(*newsock)->ops = sock->ops;
+	return ret;
+}
+
+/**
  * release - destroy a TIPC socket
  * @sock: socket to destroy
  *
@@ -1529,7 +1608,7 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags)
 
 	buf = skb_peek(&sk->sk_receive_queue);
 
-	res = tipc_create(sock_net(sock->sk), new_sock, 0, 0);
+	res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, 1);
 	if (res)
 		goto exit;
 
@@ -1839,7 +1918,7 @@ static const struct proto_ops stream_ops = {
 static const struct net_proto_family tipc_family_ops = {
 	.owner		= THIS_MODULE,
 	.family		= AF_TIPC,
-	.create		= tipc_create
+	.create		= tipc_sk_create
 };
 
 static struct proto tipc_proto = {
@@ -1849,6 +1928,12 @@ static struct proto tipc_proto = {
 	.sysctl_rmem	= sysctl_tipc_rmem
 };
 
+static struct proto tipc_proto_kern = {
+	.name		= "TIPC",
+	.obj_size	= sizeof(struct tipc_sock),
+	.sysctl_rmem	= sysctl_tipc_rmem
+};
+
 /**
  * tipc_socket_init - initialize TIPC socket interface
  *
-- 
cgit v0.10.2


From 13a2e89873506d64d7e52f17b571da371a3e25a4 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:40 -0400
Subject: tipc: convert topology server to use new server facility

As the new TIPC server infrastructure has been introduced, we can
now convert the TIPC topology server to it.  We get two benefits
from doing this:

1) It simplifies the topology server locking policy.  In the
original locking policy, we placed one spin lock pointer in the
tipc_subscriber structure to reuse the lock of the subscriber's
server port, controlling access to members of tipc_subscriber
instance.  That is, we only used one lock to ensure both
tipc_port and tipc_subscriber members were safely accessed.

Now we introduce another spin lock for tipc_subscriber structure
only protecting themselves, to get a finer granularity locking
policy.  Moreover, the change will allow us to make the topology
server code more readable and maintainable.

2) It fixes a bug where sent subscription events may be lost when
the topology port is congested.  Using the new service, the
topology server now queues sent events into an outgoing buffer,
and then wakes up a sender process which has been blocked in
workqueue context.  The process will keep picking events from the
buffer and send them to their respective subscribers, using the
kernel socket interface, until the buffer is empty. Even if the
socket is congested during transmission there is no risk that
events may be dropped, since the sender process may block when
needed.

Some minor reordering of initialization is done, since we now
have a scenario where the topology server must be started after
socket initialization has taken place, as the former depends
on the latter.  And overall, we see a simplification of the
TIPC subscriber code in making this changeover.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/core.c b/net/tipc/core.c
index b0e42a0..15bbe99 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -2,7 +2,7 @@
  * net/tipc/core.c: TIPC module code
  *
  * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005-2006, 2010-2011, Wind River Systems
+ * Copyright (c) 2005-2006, 2010-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -137,8 +137,6 @@ static int tipc_core_start(void)
 	if (!res)
 		res = tipc_nametbl_init();
 	if (!res)
-		res = tipc_subscr_start();
-	if (!res)
 		res = tipc_cfg_init();
 	if (!res)
 		res = tipc_netlink_start();
@@ -146,6 +144,8 @@ static int tipc_core_start(void)
 		res = tipc_socket_init();
 	if (!res)
 		res = tipc_register_sysctl();
+	if (!res)
+		res = tipc_subscr_start();
 	if (res)
 		tipc_core_stop();
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index bd8e2cd..d025415 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -402,7 +402,8 @@ static int bind(struct socket *sock, struct sockaddr *uaddr, int uaddr_len)
 	else if (addr->addrtype != TIPC_ADDR_NAMESEQ)
 		return -EAFNOSUPPORT;
 
-	if (addr->addr.nameseq.type < TIPC_RESERVED_TYPES)
+	if ((addr->addr.nameseq.type < TIPC_RESERVED_TYPES) &&
+	    (addr->addr.nameseq.type != TIPC_TOP_SRV))
 		return -EACCES;
 
 	return (addr->scope > 0) ?
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index 6b42d47..f6be92a 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -2,7 +2,7 @@
  * net/tipc/subscr.c: TIPC network topology service
  *
  * Copyright (c) 2000-2006, Ericsson AB
- * Copyright (c) 2005-2007, 2010-2011, Wind River Systems
+ * Copyright (c) 2005-2007, 2010-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -41,33 +41,42 @@
 
 /**
  * struct tipc_subscriber - TIPC network topology subscriber
- * @port_ref: object reference to server port connecting to subscriber
- * @lock: pointer to spinlock controlling access to subscriber's server port
- * @subscriber_list: adjacent subscribers in top. server's list of subscribers
+ * @conid: connection identifier to server connecting to subscriber
+ * @lock: controll access to subscriber
  * @subscription_list: list of subscription objects for this subscriber
  */
 struct tipc_subscriber {
-	u32 port_ref;
-	spinlock_t *lock;
-	struct list_head subscriber_list;
+	int conid;
+	spinlock_t lock;
 	struct list_head subscription_list;
 };
 
-/**
- * struct top_srv - TIPC network topology subscription service
- * @setup_port: reference to TIPC port that handles subscription requests
- * @subscription_count: number of active subscriptions (not subscribers!)
- * @subscriber_list: list of ports subscribing to service
- * @lock: spinlock govering access to subscriber list
- */
-struct top_srv {
-	u32 setup_port;
-	atomic_t subscription_count;
-	struct list_head subscriber_list;
-	spinlock_t lock;
+static void subscr_conn_msg_event(int conid, struct sockaddr_tipc *addr,
+				  void *usr_data, void *buf, size_t len);
+static void *subscr_named_msg_event(int conid);
+static void subscr_conn_shutdown_event(int conid, void *usr_data);
+
+static atomic_t subscription_count = ATOMIC_INIT(0);
+
+static struct sockaddr_tipc topsrv_addr __read_mostly = {
+	.family			= AF_TIPC,
+	.addrtype		= TIPC_ADDR_NAMESEQ,
+	.addr.nameseq.type	= TIPC_TOP_SRV,
+	.addr.nameseq.lower	= TIPC_TOP_SRV,
+	.addr.nameseq.upper	= TIPC_TOP_SRV,
+	.scope			= TIPC_NODE_SCOPE
 };
 
-static struct top_srv topsrv;
+static struct tipc_server topsrv __read_mostly = {
+	.saddr			= &topsrv_addr,
+	.imp			= TIPC_CRITICAL_IMPORTANCE,
+	.type			= SOCK_SEQPACKET,
+	.max_rcvbuf_size	= sizeof(struct tipc_subscr),
+	.name			= "topology_server",
+	.tipc_conn_recvmsg	= subscr_conn_msg_event,
+	.tipc_conn_new		= subscr_named_msg_event,
+	.tipc_conn_shutdown	= subscr_conn_shutdown_event,
+};
 
 /**
  * htohl - convert value to endianness used by destination
@@ -81,20 +90,13 @@ static u32 htohl(u32 in, int swap)
 	return swap ? swab32(in) : in;
 }
 
-/**
- * subscr_send_event - send a message containing a tipc_event to the subscriber
- *
- * Note: Must not hold subscriber's server port lock, since tipc_send() will
- *       try to take the lock if the message is rejected and returned!
- */
-static void subscr_send_event(struct tipc_subscription *sub,
-			      u32 found_lower,
-			      u32 found_upper,
-			      u32 event,
-			      u32 port_ref,
+static void subscr_send_event(struct tipc_subscription *sub, u32 found_lower,
+			      u32 found_upper, u32 event, u32 port_ref,
 			      u32 node)
 {
-	struct iovec msg_sect;
+	struct tipc_subscriber *subscriber = sub->subscriber;
+	struct kvec msg_sect;
+	int ret;
 
 	msg_sect.iov_base = (void *)&sub->evt;
 	msg_sect.iov_len = sizeof(struct tipc_event);
@@ -104,7 +106,10 @@ static void subscr_send_event(struct tipc_subscription *sub,
 	sub->evt.found_upper = htohl(found_upper, sub->swap);
 	sub->evt.port.ref = htohl(port_ref, sub->swap);
 	sub->evt.port.node = htohl(node, sub->swap);
-	tipc_send(sub->server_ref, 1, &msg_sect, msg_sect.iov_len);
+	ret = tipc_conn_sendmsg(&topsrv, subscriber->conid, NULL,
+				msg_sect.iov_base, msg_sect.iov_len);
+	if (ret < 0)
+		pr_err("Sending subscription event failed, no memory\n");
 }
 
 /**
@@ -147,21 +152,24 @@ void tipc_subscr_report_overlap(struct tipc_subscription *sub,
 	subscr_send_event(sub, found_lower, found_upper, event, port_ref, node);
 }
 
-/**
- * subscr_timeout - subscription timeout has occurred
- */
 static void subscr_timeout(struct tipc_subscription *sub)
 {
-	struct tipc_port *server_port;
+	struct tipc_subscriber *subscriber = sub->subscriber;
 
-	/* Validate server port reference (in case subscriber is terminating) */
-	server_port = tipc_port_lock(sub->server_ref);
-	if (server_port == NULL)
+	/* The spin lock per subscriber is used to protect its members */
+	spin_lock_bh(&subscriber->lock);
+
+	/* Validate if the connection related to the subscriber is
+	 * closed (in case subscriber is terminating)
+	 */
+	if (subscriber->conid == 0) {
+		spin_unlock_bh(&subscriber->lock);
 		return;
+	}
 
 	/* Validate timeout (in case subscription is being cancelled) */
 	if (sub->timeout == TIPC_WAIT_FOREVER) {
-		tipc_port_unlock(server_port);
+		spin_unlock_bh(&subscriber->lock);
 		return;
 	}
 
@@ -171,8 +179,7 @@ static void subscr_timeout(struct tipc_subscription *sub)
 	/* Unlink subscription from subscriber */
 	list_del(&sub->subscription_list);
 
-	/* Release subscriber's server port */
-	tipc_port_unlock(server_port);
+	spin_unlock_bh(&subscriber->lock);
 
 	/* Notify subscriber of timeout */
 	subscr_send_event(sub, sub->evt.s.seq.lower, sub->evt.s.seq.upper,
@@ -181,64 +188,54 @@ static void subscr_timeout(struct tipc_subscription *sub)
 	/* Now destroy subscription */
 	k_term_timer(&sub->timer);
 	kfree(sub);
-	atomic_dec(&topsrv.subscription_count);
+	atomic_dec(&subscription_count);
 }
 
 /**
  * subscr_del - delete a subscription within a subscription list
  *
- * Called with subscriber port locked.
+ * Called with subscriber lock held.
  */
 static void subscr_del(struct tipc_subscription *sub)
 {
 	tipc_nametbl_unsubscribe(sub);
 	list_del(&sub->subscription_list);
 	kfree(sub);
-	atomic_dec(&topsrv.subscription_count);
+	atomic_dec(&subscription_count);
 }
 
 /**
  * subscr_terminate - terminate communication with a subscriber
  *
- * Called with subscriber port locked.  Routine must temporarily release lock
- * to enable subscription timeout routine(s) to finish without deadlocking;
- * the lock is then reclaimed to allow caller to release it upon return.
- * (This should work even in the unlikely event some other thread creates
- * a new object reference in the interim that uses this lock; this routine will
- * simply wait for it to be released, then claim it.)
+ * Note: Must call it in process context since it might sleep.
  */
 static void subscr_terminate(struct tipc_subscriber *subscriber)
 {
-	u32 port_ref;
+	tipc_conn_terminate(&topsrv, subscriber->conid);
+}
+
+static void subscr_release(struct tipc_subscriber *subscriber)
+{
 	struct tipc_subscription *sub;
 	struct tipc_subscription *sub_temp;
 
-	/* Invalidate subscriber reference */
-	port_ref = subscriber->port_ref;
-	subscriber->port_ref = 0;
-	spin_unlock_bh(subscriber->lock);
+	spin_lock_bh(&subscriber->lock);
 
-	/* Sever connection to subscriber */
-	tipc_shutdown(port_ref);
-	tipc_deleteport(port_ref);
+	/* Invalidate subscriber reference */
+	subscriber->conid = 0;
 
 	/* Destroy any existing subscriptions for subscriber */
 	list_for_each_entry_safe(sub, sub_temp, &subscriber->subscription_list,
 				 subscription_list) {
 		if (sub->timeout != TIPC_WAIT_FOREVER) {
+			spin_unlock_bh(&subscriber->lock);
 			k_cancel_timer(&sub->timer);
 			k_term_timer(&sub->timer);
+			spin_lock_bh(&subscriber->lock);
 		}
 		subscr_del(sub);
 	}
-
-	/* Remove subscriber from topology server's subscriber list */
-	spin_lock_bh(&topsrv.lock);
-	list_del(&subscriber->subscriber_list);
-	spin_unlock_bh(&topsrv.lock);
-
-	/* Reclaim subscriber lock */
-	spin_lock_bh(subscriber->lock);
+	spin_unlock_bh(&subscriber->lock);
 
 	/* Now destroy subscriber */
 	kfree(subscriber);
@@ -247,7 +244,7 @@ static void subscr_terminate(struct tipc_subscriber *subscriber)
 /**
  * subscr_cancel - handle subscription cancellation request
  *
- * Called with subscriber port locked.  Routine must temporarily release lock
+ * Called with subscriber lock held. Routine must temporarily release lock
  * to enable the subscription timeout routine to finish without deadlocking;
  * the lock is then reclaimed to allow caller to release it upon return.
  *
@@ -274,10 +271,10 @@ static void subscr_cancel(struct tipc_subscr *s,
 	/* Cancel subscription timer (if used), then delete subscription */
 	if (sub->timeout != TIPC_WAIT_FOREVER) {
 		sub->timeout = TIPC_WAIT_FOREVER;
-		spin_unlock_bh(subscriber->lock);
+		spin_unlock_bh(&subscriber->lock);
 		k_cancel_timer(&sub->timer);
 		k_term_timer(&sub->timer);
-		spin_lock_bh(subscriber->lock);
+		spin_lock_bh(&subscriber->lock);
 	}
 	subscr_del(sub);
 }
@@ -285,7 +282,7 @@ static void subscr_cancel(struct tipc_subscr *s,
 /**
  * subscr_subscribe - create subscription for subscriber
  *
- * Called with subscriber port locked.
+ * Called with subscriber lock held.
  */
 static struct tipc_subscription *subscr_subscribe(struct tipc_subscr *s,
 					     struct tipc_subscriber *subscriber)
@@ -304,7 +301,7 @@ static struct tipc_subscription *subscr_subscribe(struct tipc_subscr *s,
 	}
 
 	/* Refuse subscription if global limit exceeded */
-	if (atomic_read(&topsrv.subscription_count) >= TIPC_MAX_SUBSCRIPTIONS) {
+	if (atomic_read(&subscription_count) >= TIPC_MAX_SUBSCRIPTIONS) {
 		pr_warn("Subscription rejected, limit reached (%u)\n",
 			TIPC_MAX_SUBSCRIPTIONS);
 		subscr_terminate(subscriber);
@@ -335,10 +332,10 @@ static struct tipc_subscription *subscr_subscribe(struct tipc_subscr *s,
 	}
 	INIT_LIST_HEAD(&sub->nameseq_list);
 	list_add(&sub->subscription_list, &subscriber->subscription_list);
-	sub->server_ref = subscriber->port_ref;
+	sub->subscriber = subscriber;
 	sub->swap = swap;
 	memcpy(&sub->evt.s, s, sizeof(struct tipc_subscr));
-	atomic_inc(&topsrv.subscription_count);
+	atomic_inc(&subscription_count);
 	if (sub->timeout != TIPC_WAIT_FOREVER) {
 		k_init_timer(&sub->timer,
 			     (Handler)subscr_timeout, (unsigned long)sub);
@@ -348,196 +345,51 @@ static struct tipc_subscription *subscr_subscribe(struct tipc_subscr *s,
 	return sub;
 }
 
-/**
- * subscr_conn_shutdown_event - handle termination request from subscriber
- *
- * Called with subscriber's server port unlocked.
- */
-static void subscr_conn_shutdown_event(void *usr_handle,
-				       u32 port_ref,
-				       struct sk_buff **buf,
-				       unsigned char const *data,
-				       unsigned int size,
-				       int reason)
+/* Handle one termination request for the subscriber */
+static void subscr_conn_shutdown_event(int conid, void *usr_data)
 {
-	struct tipc_subscriber *subscriber = usr_handle;
-	spinlock_t *subscriber_lock;
-
-	if (tipc_port_lock(port_ref) == NULL)
-		return;
-
-	subscriber_lock = subscriber->lock;
-	subscr_terminate(subscriber);
-	spin_unlock_bh(subscriber_lock);
+	subscr_release((struct tipc_subscriber *)usr_data);
 }
 
-/**
- * subscr_conn_msg_event - handle new subscription request from subscriber
- *
- * Called with subscriber's server port unlocked.
- */
-static void subscr_conn_msg_event(void *usr_handle,
-				  u32 port_ref,
-				  struct sk_buff **buf,
-				  const unchar *data,
-				  u32 size)
+/* Handle one request to create a new subscription for the subscriber */
+static void subscr_conn_msg_event(int conid, struct sockaddr_tipc *addr,
+				  void *usr_data, void *buf, size_t len)
 {
-	struct tipc_subscriber *subscriber = usr_handle;
-	spinlock_t *subscriber_lock;
+	struct tipc_subscriber *subscriber = usr_data;
 	struct tipc_subscription *sub;
 
-	/*
-	 * Lock subscriber's server port (& make a local copy of lock pointer,
-	 * in case subscriber is deleted while processing subscription request)
-	 */
-	if (tipc_port_lock(port_ref) == NULL)
-		return;
-
-	subscriber_lock = subscriber->lock;
-
-	if (size != sizeof(struct tipc_subscr)) {
-		subscr_terminate(subscriber);
-		spin_unlock_bh(subscriber_lock);
-	} else {
-		sub = subscr_subscribe((struct tipc_subscr *)data, subscriber);
-		spin_unlock_bh(subscriber_lock);
-		if (sub != NULL) {
-
-			/*
-			 * We must release the server port lock before adding a
-			 * subscription to the name table since TIPC needs to be
-			 * able to (re)acquire the port lock if an event message
-			 * issued by the subscription process is rejected and
-			 * returned.  The subscription cannot be deleted while
-			 * it is being added to the name table because:
-			 * a) the single-threading of the native API port code
-			 *    ensures the subscription cannot be cancelled and
-			 *    the subscriber connection cannot be broken, and
-			 * b) the name table lock ensures the subscription
-			 *    timeout code cannot delete the subscription,
-			 * so the subscription object is still protected.
-			 */
-			tipc_nametbl_subscribe(sub);
-		}
-	}
+	spin_lock_bh(&subscriber->lock);
+	sub = subscr_subscribe((struct tipc_subscr *)buf, subscriber);
+	if (sub)
+		tipc_nametbl_subscribe(sub);
+	spin_unlock_bh(&subscriber->lock);
 }
 
-/**
- * subscr_named_msg_event - handle request to establish a new subscriber
- */
-static void subscr_named_msg_event(void *usr_handle,
-				   u32 port_ref,
-				   struct sk_buff **buf,
-				   const unchar *data,
-				   u32 size,
-				   u32 importance,
-				   struct tipc_portid const *orig,
-				   struct tipc_name_seq const *dest)
+
+/* Handle one request to establish a new subscriber */
+static void *subscr_named_msg_event(int conid)
 {
 	struct tipc_subscriber *subscriber;
-	u32 server_port_ref;
 
 	/* Create subscriber object */
 	subscriber = kzalloc(sizeof(struct tipc_subscriber), GFP_ATOMIC);
 	if (subscriber == NULL) {
 		pr_warn("Subscriber rejected, no memory\n");
-		return;
+		return NULL;
 	}
 	INIT_LIST_HEAD(&subscriber->subscription_list);
-	INIT_LIST_HEAD(&subscriber->subscriber_list);
-
-	/* Create server port & establish connection to subscriber */
-	tipc_createport(subscriber,
-			importance,
-			NULL,
-			NULL,
-			subscr_conn_shutdown_event,
-			NULL,
-			NULL,
-			subscr_conn_msg_event,
-			NULL,
-			&subscriber->port_ref);
-	if (subscriber->port_ref == 0) {
-		pr_warn("Subscriber rejected, unable to create port\n");
-		kfree(subscriber);
-		return;
-	}
-	tipc_connect(subscriber->port_ref, orig);
-
-	/* Lock server port (& save lock address for future use) */
-	subscriber->lock = tipc_port_lock(subscriber->port_ref)->lock;
-
-	/* Add subscriber to topology server's subscriber list */
-	spin_lock_bh(&topsrv.lock);
-	list_add(&subscriber->subscriber_list, &topsrv.subscriber_list);
-	spin_unlock_bh(&topsrv.lock);
-
-	/* Unlock server port */
-	server_port_ref = subscriber->port_ref;
-	spin_unlock_bh(subscriber->lock);
-
-	/* Send an ACK- to complete connection handshaking */
-	tipc_send(server_port_ref, 0, NULL, 0);
+	subscriber->conid = conid;
+	spin_lock_init(&subscriber->lock);
 
-	/* Handle optional subscription request */
-	if (size != 0) {
-		subscr_conn_msg_event(subscriber, server_port_ref,
-				      buf, data, size);
-	}
+	return (void *)subscriber;
 }
 
 int tipc_subscr_start(void)
 {
-	struct tipc_name_seq seq = {TIPC_TOP_SRV, TIPC_TOP_SRV, TIPC_TOP_SRV};
-	int res;
-
-	spin_lock_init(&topsrv.lock);
-	INIT_LIST_HEAD(&topsrv.subscriber_list);
-
-	res = tipc_createport(NULL,
-			      TIPC_CRITICAL_IMPORTANCE,
-			      NULL,
-			      NULL,
-			      NULL,
-			      NULL,
-			      subscr_named_msg_event,
-			      NULL,
-			      NULL,
-			      &topsrv.setup_port);
-	if (res)
-		goto failed;
-
-	res = tipc_publish(topsrv.setup_port, TIPC_NODE_SCOPE, &seq);
-	if (res) {
-		tipc_deleteport(topsrv.setup_port);
-		topsrv.setup_port = 0;
-		goto failed;
-	}
-
-	return 0;
-
-failed:
-	pr_err("Failed to create subscription service\n");
-	return res;
+	return tipc_server_start(&topsrv);
 }
 
 void tipc_subscr_stop(void)
 {
-	struct tipc_subscriber *subscriber;
-	struct tipc_subscriber *subscriber_temp;
-	spinlock_t *subscriber_lock;
-
-	if (topsrv.setup_port) {
-		tipc_deleteport(topsrv.setup_port);
-		topsrv.setup_port = 0;
-
-		list_for_each_entry_safe(subscriber, subscriber_temp,
-					 &topsrv.subscriber_list,
-					 subscriber_list) {
-			subscriber_lock = subscriber->lock;
-			spin_lock_bh(subscriber_lock);
-			subscr_terminate(subscriber);
-			spin_unlock_bh(subscriber_lock);
-		}
-	}
+	tipc_server_stop(&topsrv);
 }
diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h
index 218d2e0..43e6d63 100644
--- a/net/tipc/subscr.h
+++ b/net/tipc/subscr.h
@@ -2,7 +2,7 @@
  * net/tipc/subscr.h: Include file for TIPC network topology service
  *
  * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005-2007, Wind River Systems
+ * Copyright (c) 2005-2007, 2012-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,10 +37,14 @@
 #ifndef _TIPC_SUBSCR_H
 #define _TIPC_SUBSCR_H
 
+#include "server.h"
+
 struct tipc_subscription;
+struct tipc_subscriber;
 
 /**
  * struct tipc_subscription - TIPC network topology subscription object
+ * @subscriber: pointer to its subscriber
  * @seq: name sequence associated with subscription
  * @timeout: duration of subscription (in ms)
  * @filter: event filtering to be done for subscription
@@ -52,13 +56,13 @@ struct tipc_subscription;
  * @evt: template for events generated by subscription
  */
 struct tipc_subscription {
+	struct tipc_subscriber *subscriber;
 	struct tipc_name_seq seq;
 	u32 timeout;
 	u32 filter;
 	struct timer_list timer;
 	struct list_head nameseq_list;
 	struct list_head subscription_list;
-	u32 server_ref;
 	int swap;
 	struct tipc_event evt;
 };
-- 
cgit v0.10.2


From 7d0ab17b74330e39a68ba33099ccda27f794f519 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:41 -0400
Subject: tipc: convert configuration server to use new server facility

As the new socket-based TIPC server infrastructure has been
introduced, we can now convert the configuration server to use
it.  Then we can take future steps to simplify the configuration
server locking policy.

Some minor reordering of initialization is done, due to the
dependency on having tipc_socket_init completed.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/config.c b/net/tipc/config.c
index f67866c..4887ae0 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -2,7 +2,7 @@
  * net/tipc/config.c: TIPC configuration management code
  *
  * Copyright (c) 2002-2006, Ericsson AB
- * Copyright (c) 2004-2007, 2010-2012, Wind River Systems
+ * Copyright (c) 2004-2007, 2010-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -38,12 +38,12 @@
 #include "port.h"
 #include "name_table.h"
 #include "config.h"
+#include "server.h"
 
 #define REPLY_TRUNCATED "<truncated>\n"
 
-static u32 config_port_ref;
-
 static DEFINE_SPINLOCK(config_lock);
+static struct tipc_server cfgsrv;
 
 static const void *req_tlv_area;	/* request message TLV area */
 static int req_tlv_space;		/* request message TLV area size */
@@ -381,33 +381,27 @@ exit:
 	return rep_tlv_buf;
 }
 
-static void cfg_named_msg_event(void *userdata,
-				u32 port_ref,
-				struct sk_buff **buf,
-				const unchar *msg,
-				u32 size,
-				u32 importance,
-				struct tipc_portid const *orig,
-				struct tipc_name_seq const *dest)
+static void cfg_conn_msg_event(int conid, struct sockaddr_tipc *addr,
+			       void *usr_data, void *buf, size_t len)
 {
 	struct tipc_cfg_msg_hdr *req_hdr;
 	struct tipc_cfg_msg_hdr *rep_hdr;
 	struct sk_buff *rep_buf;
+	int ret;
 
 	/* Validate configuration message header (ignore invalid message) */
-	req_hdr = (struct tipc_cfg_msg_hdr *)msg;
-	if ((size < sizeof(*req_hdr)) ||
-	    (size != TCM_ALIGN(ntohl(req_hdr->tcm_len))) ||
+	req_hdr = (struct tipc_cfg_msg_hdr *)buf;
+	if ((len < sizeof(*req_hdr)) ||
+	    (len != TCM_ALIGN(ntohl(req_hdr->tcm_len))) ||
 	    (ntohs(req_hdr->tcm_flags) != TCM_F_REQUEST)) {
 		pr_warn("Invalid configuration message discarded\n");
 		return;
 	}
 
 	/* Generate reply for request (if can't, return request) */
-	rep_buf = tipc_cfg_do_cmd(orig->node,
-				  ntohs(req_hdr->tcm_type),
-				  msg + sizeof(*req_hdr),
-				  size - sizeof(*req_hdr),
+	rep_buf = tipc_cfg_do_cmd(addr->addr.id.node, ntohs(req_hdr->tcm_type),
+				  buf + sizeof(*req_hdr),
+				  len - sizeof(*req_hdr),
 				  BUF_HEADROOM + MAX_H_SIZE + sizeof(*rep_hdr));
 	if (rep_buf) {
 		skb_push(rep_buf, sizeof(*rep_hdr));
@@ -415,57 +409,51 @@ static void cfg_named_msg_event(void *userdata,
 		memcpy(rep_hdr, req_hdr, sizeof(*rep_hdr));
 		rep_hdr->tcm_len = htonl(rep_buf->len);
 		rep_hdr->tcm_flags &= htons(~TCM_F_REQUEST);
-	} else {
-		rep_buf = *buf;
-		*buf = NULL;
-	}
 
-	/* NEED TO ADD CODE TO HANDLE FAILED SEND (SUCH AS CONGESTION) */
-	tipc_send_buf2port(port_ref, orig, rep_buf, rep_buf->len);
+		ret = tipc_conn_sendmsg(&cfgsrv, conid, addr, rep_buf->data,
+					rep_buf->len);
+		if (ret < 0)
+			pr_err("Sending cfg reply message failed, no memory\n");
+
+		kfree_skb(rep_buf);
+	}
 }
 
+static struct sockaddr_tipc cfgsrv_addr __read_mostly = {
+	.family			= AF_TIPC,
+	.addrtype		= TIPC_ADDR_NAMESEQ,
+	.addr.nameseq.type	= TIPC_CFG_SRV,
+	.addr.nameseq.lower	= 0,
+	.addr.nameseq.upper	= 0,
+	.scope			= TIPC_ZONE_SCOPE
+};
+
+static struct tipc_server cfgsrv __read_mostly = {
+	.saddr			= &cfgsrv_addr,
+	.imp			= TIPC_CRITICAL_IMPORTANCE,
+	.type			= SOCK_RDM,
+	.max_rcvbuf_size	= 64 * 1024,
+	.name			= "cfg_server",
+	.tipc_conn_recvmsg	= cfg_conn_msg_event,
+	.tipc_conn_new		= NULL,
+	.tipc_conn_shutdown	= NULL
+};
+
 int tipc_cfg_init(void)
 {
-	struct tipc_name_seq seq;
-	int res;
-
-	res = tipc_createport(NULL, TIPC_CRITICAL_IMPORTANCE,
-			      NULL, NULL, NULL,
-			      NULL, cfg_named_msg_event, NULL,
-			      NULL, &config_port_ref);
-	if (res)
-		goto failed;
-
-	seq.type = TIPC_CFG_SRV;
-	seq.lower = seq.upper = tipc_own_addr;
-	res = tipc_publish(config_port_ref, TIPC_ZONE_SCOPE, &seq);
-	if (res)
-		goto failed;
-
-	return 0;
-
-failed:
-	pr_err("Unable to create configuration service\n");
-	return res;
+	return tipc_server_start(&cfgsrv);
 }
 
 void tipc_cfg_reinit(void)
 {
-	struct tipc_name_seq seq;
-	int res;
-
-	seq.type = TIPC_CFG_SRV;
-	seq.lower = seq.upper = 0;
-	tipc_withdraw(config_port_ref, TIPC_ZONE_SCOPE, &seq);
+	tipc_server_stop(&cfgsrv);
 
-	seq.lower = seq.upper = tipc_own_addr;
-	res = tipc_publish(config_port_ref, TIPC_ZONE_SCOPE, &seq);
-	if (res)
-		pr_err("Unable to reinitialize configuration service\n");
+	cfgsrv_addr.addr.nameseq.lower = tipc_own_addr;
+	cfgsrv_addr.addr.nameseq.upper = tipc_own_addr;
+	tipc_server_start(&cfgsrv);
 }
 
 void tipc_cfg_stop(void)
 {
-	tipc_deleteport(config_port_ref);
-	config_port_ref = 0;
+	tipc_server_stop(&cfgsrv);
 }
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 15bbe99..fd4eeea 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -137,8 +137,6 @@ static int tipc_core_start(void)
 	if (!res)
 		res = tipc_nametbl_init();
 	if (!res)
-		res = tipc_cfg_init();
-	if (!res)
 		res = tipc_netlink_start();
 	if (!res)
 		res = tipc_socket_init();
@@ -146,6 +144,8 @@ static int tipc_core_start(void)
 		res = tipc_register_sysctl();
 	if (!res)
 		res = tipc_subscr_start();
+	if (!res)
+		res = tipc_cfg_init();
 	if (res)
 		tipc_core_stop();
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index d025415..9510fe8 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -403,7 +403,8 @@ static int bind(struct socket *sock, struct sockaddr *uaddr, int uaddr_len)
 		return -EAFNOSUPPORT;
 
 	if ((addr->addr.nameseq.type < TIPC_RESERVED_TYPES) &&
-	    (addr->addr.nameseq.type != TIPC_TOP_SRV))
+	    (addr->addr.nameseq.type != TIPC_TOP_SRV) &&
+	    (addr->addr.nameseq.type != TIPC_CFG_SRV))
 		return -EACCES;
 
 	return (addr->scope > 0) ?
-- 
cgit v0.10.2


From 198d73b82bf78739f8f11cf7ff567a2e0da1dbef Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:42 -0400
Subject: tipc: delete code orphaned by new server infrastructure

Having completed the conversion of the topology server and
configuration server to use the new server infrastructure,
the following functions become unused, and can be deleted:

   - tipc_createport()
   - port_wakeup_sh()
   - port_dispatcher()
   - port_dispatcher_sigh()
   - tipc_send_buf_fast()
   - tipc_send_buf2port

Additionally, the following variables become orphaned,
and can be deleted:

   - tipc_msg_err_event
   - tipc_named_msg_err_event
   - tipc_conn_shutdown_event
   - tipc_msg_event
   - tipc_named_msg_event
   - tipc_conn_msg_event
   - tipc_continue_event
   - msg_queue_head
   - msg_queue_tail
   - queue_lock

Deletion is done here in a separate commit in order to allow
the actual conversion changes to be more easily viewed.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/link.c b/net/tipc/link.c
index a80feee..0a4c3a1 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2,7 +2,7 @@
  * net/tipc/link.c: TIPC link code
  *
  * Copyright (c) 1996-2007, 2012, Ericsson AB
- * Copyright (c) 2004-2007, 2010-2011, Wind River Systems
+ * Copyright (c) 2004-2007, 2010-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1057,40 +1057,6 @@ static int link_send_buf_fast(struct tipc_link *l_ptr, struct sk_buff *buf,
 }
 
 /*
- * tipc_send_buf_fast: Entry for data messages where the
- * destination node is known and the header is complete,
- * inclusive total message length.
- * Returns user data length.
- */
-int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode)
-{
-	struct tipc_link *l_ptr;
-	struct tipc_node *n_ptr;
-	int res;
-	u32 selector = msg_origport(buf_msg(buf)) & 1;
-	u32 dummy;
-
-	read_lock_bh(&tipc_net_lock);
-	n_ptr = tipc_node_find(destnode);
-	if (likely(n_ptr)) {
-		tipc_node_lock(n_ptr);
-		l_ptr = n_ptr->active_links[selector];
-		if (likely(l_ptr)) {
-			res = link_send_buf_fast(l_ptr, buf, &dummy);
-			tipc_node_unlock(n_ptr);
-			read_unlock_bh(&tipc_net_lock);
-			return res;
-		}
-		tipc_node_unlock(n_ptr);
-	}
-	read_unlock_bh(&tipc_net_lock);
-	res = msg_data_sz(buf_msg(buf));
-	tipc_reject_msg(buf, TIPC_ERR_NO_NODE);
-	return res;
-}
-
-
-/*
  * tipc_link_send_sections_fast: Entry for messages where the
  * destination processor is known and the header is complete,
  * except for total message length.
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 18098ca..0651522 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -2,7 +2,7 @@
  * net/tipc/port.c: TIPC port code
  *
  * Copyright (c) 1992-2007, Ericsson AB
- * Copyright (c) 2004-2008, 2010-2011, Wind River Systems
+ * Copyright (c) 2004-2008, 2010-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -46,11 +46,7 @@
 
 #define MAX_REJECT_SIZE 1024
 
-static struct sk_buff *msg_queue_head;
-static struct sk_buff *msg_queue_tail;
-
 DEFINE_SPINLOCK(tipc_port_list_lock);
-static DEFINE_SPINLOCK(queue_lock);
 
 static LIST_HEAD(ports);
 static void port_handle_node_down(unsigned long ref);
@@ -668,215 +664,6 @@ void tipc_port_reinit(void)
 	spin_unlock_bh(&tipc_port_list_lock);
 }
 
-
-/*
- *  port_dispatcher_sigh(): Signal handler for messages destinated
- *                          to the tipc_port interface.
- */
-static void port_dispatcher_sigh(void *dummy)
-{
-	struct sk_buff *buf;
-
-	spin_lock_bh(&queue_lock);
-	buf = msg_queue_head;
-	msg_queue_head = NULL;
-	spin_unlock_bh(&queue_lock);
-
-	while (buf) {
-		struct tipc_port *p_ptr;
-		struct user_port *up_ptr;
-		struct tipc_portid orig;
-		struct tipc_name_seq dseq;
-		void *usr_handle;
-		int connected;
-		int peer_invalid;
-		int published;
-		u32 message_type;
-
-		struct sk_buff *next = buf->next;
-		struct tipc_msg *msg = buf_msg(buf);
-		u32 dref = msg_destport(msg);
-
-		message_type = msg_type(msg);
-		if (message_type > TIPC_DIRECT_MSG)
-			goto reject;	/* Unsupported message type */
-
-		p_ptr = tipc_port_lock(dref);
-		if (!p_ptr)
-			goto reject;	/* Port deleted while msg in queue */
-
-		orig.ref = msg_origport(msg);
-		orig.node = msg_orignode(msg);
-		up_ptr = p_ptr->user_port;
-		usr_handle = up_ptr->usr_handle;
-		connected = p_ptr->connected;
-		peer_invalid = connected && !tipc_port_peer_msg(p_ptr, msg);
-		published = p_ptr->published;
-
-		if (unlikely(msg_errcode(msg)))
-			goto err;
-
-		switch (message_type) {
-
-		case TIPC_CONN_MSG:{
-				tipc_conn_msg_event cb = up_ptr->conn_msg_cb;
-				u32 dsz;
-
-				tipc_port_unlock(p_ptr);
-				if (unlikely(!cb))
-					goto reject;
-				if (unlikely(!connected)) {
-					if (tipc_connect(dref, &orig))
-						goto reject;
-				} else if (peer_invalid)
-					goto reject;
-				dsz = msg_data_sz(msg);
-				if (unlikely(dsz &&
-					     (++p_ptr->conn_unacked >=
-					      TIPC_FLOW_CONTROL_WIN)))
-					tipc_acknowledge(dref,
-							 p_ptr->conn_unacked);
-				skb_pull(buf, msg_hdr_sz(msg));
-				cb(usr_handle, dref, &buf, msg_data(msg), dsz);
-				break;
-			}
-		case TIPC_DIRECT_MSG:{
-				tipc_msg_event cb = up_ptr->msg_cb;
-
-				tipc_port_unlock(p_ptr);
-				if (unlikely(!cb || connected))
-					goto reject;
-				skb_pull(buf, msg_hdr_sz(msg));
-				cb(usr_handle, dref, &buf, msg_data(msg),
-				   msg_data_sz(msg), msg_importance(msg),
-				   &orig);
-				break;
-			}
-		case TIPC_MCAST_MSG:
-		case TIPC_NAMED_MSG:{
-				tipc_named_msg_event cb = up_ptr->named_msg_cb;
-
-				tipc_port_unlock(p_ptr);
-				if (unlikely(!cb || connected || !published))
-					goto reject;
-				dseq.type =  msg_nametype(msg);
-				dseq.lower = msg_nameinst(msg);
-				dseq.upper = (message_type == TIPC_NAMED_MSG)
-					? dseq.lower : msg_nameupper(msg);
-				skb_pull(buf, msg_hdr_sz(msg));
-				cb(usr_handle, dref, &buf, msg_data(msg),
-				   msg_data_sz(msg), msg_importance(msg),
-				   &orig, &dseq);
-				break;
-			}
-		}
-		if (buf)
-			kfree_skb(buf);
-		buf = next;
-		continue;
-err:
-		switch (message_type) {
-
-		case TIPC_CONN_MSG:{
-				tipc_conn_shutdown_event cb =
-					up_ptr->conn_err_cb;
-
-				tipc_port_unlock(p_ptr);
-				if (!cb || !connected || peer_invalid)
-					break;
-				tipc_disconnect(dref);
-				skb_pull(buf, msg_hdr_sz(msg));
-				cb(usr_handle, dref, &buf, msg_data(msg),
-				   msg_data_sz(msg), msg_errcode(msg));
-				break;
-			}
-		case TIPC_DIRECT_MSG:{
-				tipc_msg_err_event cb = up_ptr->err_cb;
-
-				tipc_port_unlock(p_ptr);
-				if (!cb || connected)
-					break;
-				skb_pull(buf, msg_hdr_sz(msg));
-				cb(usr_handle, dref, &buf, msg_data(msg),
-				   msg_data_sz(msg), msg_errcode(msg), &orig);
-				break;
-			}
-		case TIPC_MCAST_MSG:
-		case TIPC_NAMED_MSG:{
-				tipc_named_msg_err_event cb =
-					up_ptr->named_err_cb;
-
-				tipc_port_unlock(p_ptr);
-				if (!cb || connected)
-					break;
-				dseq.type =  msg_nametype(msg);
-				dseq.lower = msg_nameinst(msg);
-				dseq.upper = (message_type == TIPC_NAMED_MSG)
-					? dseq.lower : msg_nameupper(msg);
-				skb_pull(buf, msg_hdr_sz(msg));
-				cb(usr_handle, dref, &buf, msg_data(msg),
-				   msg_data_sz(msg), msg_errcode(msg), &dseq);
-				break;
-			}
-		}
-		if (buf)
-			kfree_skb(buf);
-		buf = next;
-		continue;
-reject:
-		tipc_reject_msg(buf, TIPC_ERR_NO_PORT);
-		buf = next;
-	}
-}
-
-/*
- *  port_dispatcher(): Dispatcher for messages destinated
- *  to the tipc_port interface. Called with port locked.
- */
-static u32 port_dispatcher(struct tipc_port *dummy, struct sk_buff *buf)
-{
-	buf->next = NULL;
-	spin_lock_bh(&queue_lock);
-	if (msg_queue_head) {
-		msg_queue_tail->next = buf;
-		msg_queue_tail = buf;
-	} else {
-		msg_queue_tail = msg_queue_head = buf;
-		tipc_k_signal((Handler)port_dispatcher_sigh, 0);
-	}
-	spin_unlock_bh(&queue_lock);
-	return 0;
-}
-
-/*
- * Wake up port after congestion: Called with port locked
- */
-static void port_wakeup_sh(unsigned long ref)
-{
-	struct tipc_port *p_ptr;
-	struct user_port *up_ptr;
-	tipc_continue_event cb = NULL;
-	void *uh = NULL;
-
-	p_ptr = tipc_port_lock(ref);
-	if (p_ptr) {
-		up_ptr = p_ptr->user_port;
-		if (up_ptr) {
-			cb = up_ptr->continue_event_cb;
-			uh = up_ptr->usr_handle;
-		}
-		tipc_port_unlock(p_ptr);
-	}
-	if (cb)
-		cb(uh, ref);
-}
-
-
-static void port_wakeup(struct tipc_port *p_ptr)
-{
-	tipc_k_signal((Handler)port_wakeup_sh, p_ptr->ref);
-}
-
 void tipc_acknowledge(u32 ref, u32 ack)
 {
 	struct tipc_port *p_ptr;
@@ -893,50 +680,6 @@ void tipc_acknowledge(u32 ref, u32 ack)
 	tipc_net_route_msg(buf);
 }
 
-/*
- * tipc_createport(): user level call.
- */
-int tipc_createport(void *usr_handle,
-		    unsigned int importance,
-		    tipc_msg_err_event error_cb,
-		    tipc_named_msg_err_event named_error_cb,
-		    tipc_conn_shutdown_event conn_error_cb,
-		    tipc_msg_event msg_cb,
-		    tipc_named_msg_event named_msg_cb,
-		    tipc_conn_msg_event conn_msg_cb,
-		    tipc_continue_event continue_event_cb, /* May be zero */
-		    u32 *portref)
-{
-	struct user_port *up_ptr;
-	struct tipc_port *p_ptr;
-
-	up_ptr = kmalloc(sizeof(*up_ptr), GFP_ATOMIC);
-	if (!up_ptr) {
-		pr_warn("Port creation failed, no memory\n");
-		return -ENOMEM;
-	}
-	p_ptr = tipc_createport_raw(NULL, port_dispatcher, port_wakeup,
-				    importance);
-	if (!p_ptr) {
-		kfree(up_ptr);
-		return -ENOMEM;
-	}
-
-	p_ptr->user_port = up_ptr;
-	up_ptr->usr_handle = usr_handle;
-	up_ptr->ref = p_ptr->ref;
-	up_ptr->err_cb = error_cb;
-	up_ptr->named_err_cb = named_error_cb;
-	up_ptr->conn_err_cb = conn_error_cb;
-	up_ptr->msg_cb = msg_cb;
-	up_ptr->named_msg_cb = named_msg_cb;
-	up_ptr->conn_msg_cb = conn_msg_cb;
-	up_ptr->continue_event_cb = continue_event_cb;
-	*portref = p_ptr->ref;
-	tipc_port_unlock(p_ptr);
-	return 0;
-}
-
 int tipc_portimportance(u32 ref, unsigned int *importance)
 {
 	struct tipc_port *p_ptr;
@@ -1322,43 +1065,3 @@ int tipc_send2port(u32 ref, struct tipc_portid const *dest,
 	}
 	return -ELINKCONG;
 }
-
-/**
- * tipc_send_buf2port - send message buffer to port identity
- */
-int tipc_send_buf2port(u32 ref, struct tipc_portid const *dest,
-	       struct sk_buff *buf, unsigned int dsz)
-{
-	struct tipc_port *p_ptr;
-	struct tipc_msg *msg;
-	int res;
-
-	p_ptr = (struct tipc_port *)tipc_ref_deref(ref);
-	if (!p_ptr || p_ptr->connected)
-		return -EINVAL;
-
-	msg = &p_ptr->phdr;
-	msg_set_type(msg, TIPC_DIRECT_MSG);
-	msg_set_destnode(msg, dest->node);
-	msg_set_destport(msg, dest->ref);
-	msg_set_hdr_sz(msg, BASIC_H_SIZE);
-	msg_set_size(msg, BASIC_H_SIZE + dsz);
-	if (skb_cow(buf, BASIC_H_SIZE))
-		return -ENOMEM;
-
-	skb_push(buf, BASIC_H_SIZE);
-	skb_copy_to_linear_data(buf, msg, BASIC_H_SIZE);
-
-	if (in_own_node(dest->node))
-		res = tipc_port_recv_msg(buf);
-	else
-		res = tipc_send_buf_fast(buf, dest->node);
-	if (likely(res != -ELINKCONG)) {
-		if (res > 0)
-			p_ptr->sent++;
-		return res;
-	}
-	if (port_unreliable(p_ptr))
-		return dsz;
-	return -ELINKCONG;
-}
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 2485649..7fd37c2 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -2,7 +2,7 @@
  * net/tipc/port.h: Include file for TIPC port code
  *
  * Copyright (c) 1994-2007, Ericsson AB
- * Copyright (c) 2004-2007, 2010-2011, Wind River Systems
+ * Copyright (c) 2004-2007, 2010-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -46,37 +46,6 @@
 #define CONN_OVERLOAD_LIMIT	((TIPC_FLOW_CONTROL_WIN * 2 + 1) * \
 				SKB_TRUESIZE(TIPC_MAX_USER_MSG_SIZE))
 
-typedef void (*tipc_msg_err_event) (void *usr_handle, u32 portref,
-		struct sk_buff **buf, unsigned char const *data,
-		unsigned int size, int reason,
-		struct tipc_portid const *attmpt_destid);
-
-typedef void (*tipc_named_msg_err_event) (void *usr_handle, u32 portref,
-		struct sk_buff **buf, unsigned char const *data,
-		unsigned int size, int reason,
-		struct tipc_name_seq const *attmpt_dest);
-
-typedef void (*tipc_conn_shutdown_event) (void *usr_handle, u32 portref,
-		struct sk_buff **buf, unsigned char const *data,
-		unsigned int size, int reason);
-
-typedef void (*tipc_msg_event) (void *usr_handle, u32 portref,
-		struct sk_buff **buf, unsigned char const *data,
-		unsigned int size, unsigned int importance,
-		struct tipc_portid const *origin);
-
-typedef void (*tipc_named_msg_event) (void *usr_handle, u32 portref,
-		struct sk_buff **buf, unsigned char const *data,
-		unsigned int size, unsigned int importance,
-		struct tipc_portid const *orig,
-		struct tipc_name_seq const *dest);
-
-typedef void (*tipc_conn_msg_event) (void *usr_handle, u32 portref,
-		struct sk_buff **buf, unsigned char const *data,
-		unsigned int size);
-
-typedef void (*tipc_continue_event) (void *usr_handle, u32 portref);
-
 /**
  * struct user_port - TIPC user port (used with native API)
  * @usr_handle: user-specified field
@@ -87,13 +56,6 @@ typedef void (*tipc_continue_event) (void *usr_handle, u32 portref);
 struct user_port {
 	void *usr_handle;
 	u32 ref;
-	tipc_msg_err_event err_cb;
-	tipc_named_msg_err_event named_err_cb;
-	tipc_conn_shutdown_event conn_err_cb;
-	tipc_msg_event msg_cb;
-	tipc_named_msg_event named_msg_cb;
-	tipc_conn_msg_event conn_msg_cb;
-	tipc_continue_event continue_event_cb;
 };
 
 /**
@@ -164,18 +126,8 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
 
 int tipc_reject_msg(struct sk_buff *buf, u32 err);
 
-int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode);
-
 void tipc_acknowledge(u32 port_ref, u32 ack);
 
-int tipc_createport(void *usr_handle,
-		unsigned int importance, tipc_msg_err_event error_cb,
-		tipc_named_msg_err_event named_error_cb,
-		tipc_conn_shutdown_event conn_error_cb, tipc_msg_event msg_cb,
-		tipc_named_msg_event named_msg_cb,
-		tipc_conn_msg_event conn_msg_cb,
-		tipc_continue_event continue_event_cb, u32 *portref);
-
 int tipc_deleteport(u32 portref);
 
 int tipc_portimportance(u32 portref, unsigned int *importance);
@@ -222,9 +174,6 @@ int tipc_send2port(u32 portref, struct tipc_portid const *dest,
 		   unsigned int num_sect, struct iovec const *msg_sect,
 		   unsigned int total_len);
 
-int tipc_send_buf2port(u32 portref, struct tipc_portid const *dest,
-		struct sk_buff *buf, unsigned int dsz);
-
 int tipc_multicast(u32 portref, struct tipc_name_seq const *seq,
 		   unsigned int section_count, struct iovec const *msg,
 		   unsigned int total_len);
-- 
cgit v0.10.2


From f1733d7580ff94deb8ea071a293c23939ae0d450 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:43 -0400
Subject: tipc: remove user_port instance from tipc_port structure

After the native API has been completely removed, the 'user_port'
field in struct tipc_port becomes unused, and can be removed.
As a consequence, the "usrmem" argument in tipc_msg_build() is no
longer needed, and so we remove that one too.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 0a4c3a1..d34429d 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1081,7 +1081,7 @@ again:
 	 * (Must not hold any locks while building message.)
 	 */
 	res = tipc_msg_build(hdr, msg_sect, num_sect, total_len,
-			     sender->max_pkt, !sender->user_port, &buf);
+			     sender->max_pkt, &buf);
 
 	read_lock_bh(&tipc_net_lock);
 	node = tipc_node_find(destaddr);
@@ -1216,18 +1216,14 @@ again:
 		else
 			sz = fragm_rest;
 
-		if (likely(!sender->user_port)) {
-			if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) {
+		if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) {
 error:
-				for (; buf_chain; buf_chain = buf) {
-					buf = buf_chain->next;
-					kfree_skb(buf_chain);
-				}
-				return -EFAULT;
+			for (; buf_chain; buf_chain = buf) {
+				buf = buf_chain->next;
+				kfree_skb(buf_chain);
 			}
-		} else
-			skb_copy_to_linear_data_offset(buf, fragm_crs,
-						       sect_crs, sz);
+			return -EFAULT;
+		}
 		sect_crs += sz;
 		sect_rest -= sz;
 		fragm_crs += sz;
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index f2db8a8..c2a2613 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -73,8 +73,8 @@ void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
  * Returns message data size or errno
  */
 int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
-		   u32 num_sect, unsigned int total_len,
-			    int max_size, int usrmem, struct sk_buff **buf)
+		   u32 num_sect, unsigned int total_len, int max_size,
+		   struct sk_buff **buf)
 {
 	int dsz, sz, hsz, pos, res, cnt;
 
@@ -92,14 +92,9 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
 		return -ENOMEM;
 	skb_copy_to_linear_data(*buf, hdr, hsz);
 	for (res = 1, cnt = 0; res && (cnt < num_sect); cnt++) {
-		if (likely(usrmem))
-			res = !copy_from_user((*buf)->data + pos,
-					      msg_sect[cnt].iov_base,
-					      msg_sect[cnt].iov_len);
-		else
-			skb_copy_to_linear_data_offset(*buf, pos,
-						       msg_sect[cnt].iov_base,
-						       msg_sect[cnt].iov_len);
+		skb_copy_to_linear_data_offset(*buf, pos,
+					       msg_sect[cnt].iov_base,
+					       msg_sect[cnt].iov_len);
 		pos += msg_sect[cnt].iov_len;
 	}
 	if (likely(res))
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index ba2a72b..511019a 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -722,6 +722,6 @@ u32 tipc_msg_tot_importance(struct tipc_msg *m);
 void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
 			    u32 hsize, u32 destnode);
 int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
-		   u32 num_sect, unsigned int total_len,
-			    int max_size, int usrmem, struct sk_buff **buf);
+		   u32 num_sect, unsigned int total_len, int max_size,
+		   struct sk_buff **buf);
 #endif
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 0651522..f628c84 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -115,7 +115,7 @@ int tipc_multicast(u32 ref, struct tipc_name_seq const *seq,
 	msg_set_nameupper(hdr, seq->upper);
 	msg_set_hdr_sz(hdr, MCAST_H_SIZE);
 	res = tipc_msg_build(hdr, msg_sect, num_sect, total_len, MAX_MSG_SIZE,
-			!oport->user_port, &buf);
+			     &buf);
 	if (unlikely(!buf))
 		return res;
 
@@ -234,7 +234,6 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
 	INIT_LIST_HEAD(&p_ptr->subscription.nodesub_list);
 	p_ptr->dispatcher = dispatcher;
 	p_ptr->wakeup = wakeup;
-	p_ptr->user_port = NULL;
 	k_init_timer(&p_ptr->timer, (Handler)port_timeout, ref);
 	INIT_LIST_HEAD(&p_ptr->publications);
 	INIT_LIST_HEAD(&p_ptr->port_list);
@@ -271,7 +270,6 @@ int tipc_deleteport(u32 ref)
 		buf = port_build_peer_abort_msg(p_ptr, TIPC_ERR_NO_PORT);
 		tipc_nodesub_unsubscribe(&p_ptr->subscription);
 	}
-	kfree(p_ptr->user_port);
 
 	spin_lock_bh(&tipc_port_list_lock);
 	list_del(&p_ptr->port_list);
@@ -444,7 +442,7 @@ int tipc_port_reject_sections(struct tipc_port *p_ptr, struct tipc_msg *hdr,
 	int res;
 
 	res = tipc_msg_build(hdr, msg_sect, num_sect, total_len, MAX_MSG_SIZE,
-			!p_ptr->user_port, &buf);
+			     &buf);
 	if (!buf)
 		return res;
 
@@ -927,7 +925,7 @@ static int tipc_port_recv_sections(struct tipc_port *sender, unsigned int num_se
 	int res;
 
 	res = tipc_msg_build(&sender->phdr, msg_sect, num_sect, total_len,
-			MAX_MSG_SIZE, !sender->user_port, &buf);
+			     MAX_MSG_SIZE, &buf);
 	if (likely(buf))
 		tipc_port_recv_msg(buf);
 	return res;
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 7fd37c2..4779f0a 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -47,18 +47,6 @@
 				SKB_TRUESIZE(TIPC_MAX_USER_MSG_SIZE))
 
 /**
- * struct user_port - TIPC user port (used with native API)
- * @usr_handle: user-specified field
- * @ref: object reference to associated TIPC port
- *
- * <various callback routines>
- */
-struct user_port {
-	void *usr_handle;
-	u32 ref;
-};
-
-/**
  * struct tipc_port - TIPC port structure
  * @usr_handle: pointer to additional user-defined information about port
  * @lock: pointer to spinlock for controlling access to port
@@ -74,7 +62,6 @@ struct user_port {
  * @port_list: adjacent ports in TIPC's global list of ports
  * @dispatcher: ptr to routine which handles received messages
  * @wakeup: ptr to routine to call when port is no longer congested
- * @user_port: ptr to user port associated with port (if any)
  * @wait_list: adjacent ports in list of ports waiting on link congestion
  * @waiting_pkts:
  * @sent: # of non-empty messages sent by port
@@ -101,7 +88,6 @@ struct tipc_port {
 	struct list_head port_list;
 	u32 (*dispatcher)(struct tipc_port *, struct sk_buff *);
 	void (*wakeup)(struct tipc_port *);
-	struct user_port *user_port;
 	struct list_head wait_list;
 	u32 waiting_pkts;
 	u32 sent;
-- 
cgit v0.10.2


From 3c5db8e4eca36e4f312b49bba99f4c1f6ce0563a Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:44 -0400
Subject: tipc: rename tipc_createport_raw to tipc_createport

After the removal of the native API, there is now only one way to
to create a TIPC port instance -- the function tipc_createport_raw().
We make it more readable by renaming it to tipc_createport().

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/port.c b/net/tipc/port.c
index f628c84..84b2a57 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -202,11 +202,11 @@ exit:
 }
 
 /**
- * tipc_createport_raw - create a generic TIPC port
+ * tipc_createport - create a generic TIPC port
  *
  * Returns pointer to (locked) TIPC port, or NULL if unable to create it
  */
-struct tipc_port *tipc_createport_raw(void *usr_handle,
+struct tipc_port *tipc_createport(void *usr_handle,
 			u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
 			void (*wakeup)(struct tipc_port *),
 			const u32 importance)
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 4779f0a..4583882 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -106,7 +106,7 @@ struct tipc_port_list;
 /*
  * TIPC port manipulation routines
  */
-struct tipc_port *tipc_createport_raw(void *usr_handle,
+struct tipc_port *tipc_createport(void *usr_handle,
 		u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
 		void (*wakeup)(struct tipc_port *), const u32 importance);
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 9510fe8..67f4e1f 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -195,8 +195,8 @@ static int tipc_sk_create(struct net *net, struct socket *sock, int protocol,
 		return -ENOMEM;
 
 	/* Allocate TIPC port for socket to use */
-	tp_ptr = tipc_createport_raw(sk, &dispatch, &wakeupdispatch,
-				     TIPC_LOW_IMPORTANCE);
+	tp_ptr = tipc_createport(sk, &dispatch, &wakeupdispatch,
+				 TIPC_LOW_IMPORTANCE);
 	if (unlikely(!tp_ptr)) {
 		sk_free(sk);
 		return -ENOMEM;
-- 
cgit v0.10.2


From 28e5297281ab85d636aa814a9b65cfb99375d092 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:45 -0400
Subject: tipc: convert config_lock from spinlock to mutex

As the configuration server is now running under process context,
it's unnecessary for us to have a spinlock serializing the TIPC
configuration process. Instead, we replace it with a mutex lock,
which gives us more freedom. For instance, we can now call
pre-emptable functions within the protected area.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/config.c b/net/tipc/config.c
index 4887ae0..c301a9a 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -42,7 +42,7 @@
 
 #define REPLY_TRUNCATED "<truncated>\n"
 
-static DEFINE_SPINLOCK(config_lock);
+static DEFINE_MUTEX(config_mutex);
 static struct tipc_server cfgsrv;
 
 static const void *req_tlv_area;	/* request message TLV area */
@@ -181,18 +181,7 @@ static struct sk_buff *cfg_set_own_addr(void)
 	if (tipc_own_addr)
 		return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
 						   " (cannot change node address once assigned)");
-
-	/*
-	 * Must temporarily release configuration spinlock while switching into
-	 * networking mode as it calls tipc_eth_media_start(), which may sleep.
-	 * Releasing the lock is harmless as other locally-issued configuration
-	 * commands won't occur until this one completes, and remotely-issued
-	 * configuration commands can't be received until a local configuration
-	 * command to enable the first bearer is received and processed.
-	 */
-	spin_unlock_bh(&config_lock);
 	tipc_core_start_net(addr);
-	spin_lock_bh(&config_lock);
 	return tipc_cfg_reply_none();
 }
 
@@ -248,7 +237,7 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
 {
 	struct sk_buff *rep_tlv_buf;
 
-	spin_lock_bh(&config_lock);
+	mutex_lock(&config_mutex);
 
 	/* Save request and reply details in a well-known location */
 	req_tlv_area = request_area;
@@ -377,7 +366,7 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
 
 	/* Return reply buffer */
 exit:
-	spin_unlock_bh(&config_lock);
+	mutex_unlock(&config_mutex);
 	return rep_tlv_buf;
 }
 
-- 
cgit v0.10.2


From c0fee8aca7206264d5e3dcc4e60aaf86501f4ea1 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:46 -0400
Subject: tipc: save sock structure pointer instead of void pointer to
 tipc_port

Directly save sock structure pointer instead of void pointer to avoid
unnecessary cast conversions.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/port.c b/net/tipc/port.c
index 84b2a57..0bb185a 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -206,7 +206,7 @@ exit:
  *
  * Returns pointer to (locked) TIPC port, or NULL if unable to create it
  */
-struct tipc_port *tipc_createport(void *usr_handle,
+struct tipc_port *tipc_createport(struct sock *sk,
 			u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
 			void (*wakeup)(struct tipc_port *),
 			const u32 importance)
@@ -227,7 +227,7 @@ struct tipc_port *tipc_createport(void *usr_handle,
 		return NULL;
 	}
 
-	p_ptr->usr_handle = usr_handle;
+	p_ptr->sk = sk;
 	p_ptr->max_pkt = MAX_PKT_DEFAULT;
 	p_ptr->ref = ref;
 	INIT_LIST_HEAD(&p_ptr->wait_list);
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 4583882..241f529 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -48,7 +48,7 @@
 
 /**
  * struct tipc_port - TIPC port structure
- * @usr_handle: pointer to additional user-defined information about port
+ * @sk: pointer to socket handle
  * @lock: pointer to spinlock for controlling access to port
  * @connected: non-zero if port is currently connected to a peer port
  * @conn_type: TIPC type used when connection was established
@@ -74,7 +74,7 @@
  * @subscription: "node down" subscription used to terminate failed connections
  */
 struct tipc_port {
-	void *usr_handle;
+	struct sock *sk;
 	spinlock_t *lock;
 	int connected;
 	u32 conn_type;
@@ -106,7 +106,7 @@ struct tipc_port_list;
 /*
  * TIPC port manipulation routines
  */
-struct tipc_port *tipc_createport(void *usr_handle,
+struct tipc_port *tipc_createport(struct sock *sk,
 		u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
 		void (*wakeup)(struct tipc_port *), const u32 importance);
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 67f4e1f..14ed54e 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -1406,7 +1406,7 @@ static int backlog_rcv(struct sock *sk, struct sk_buff *buf)
  */
 static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf)
 {
-	struct sock *sk = (struct sock *)tport->usr_handle;
+	struct sock *sk = tport->sk;
 	u32 res;
 
 	/*
@@ -1437,7 +1437,7 @@ static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf)
  */
 static void wakeupdispatch(struct tipc_port *tport)
 {
-	struct sock *sk = (struct sock *)tport->usr_handle;
+	struct sock *sk = tport->sk;
 
 	sk->sk_write_space(sk);
 }
-- 
cgit v0.10.2


From ae8509c420122866344bde1241e31858d0aa2fbc Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Mon, 17 Jun 2013 10:54:47 -0400
Subject: tipc: cosmetic realignment of function arguments

No runtime code changes here.  Just a realign of the function
arguments to start where the 1st one was, and fit as many args
as can be put in an 80 char line.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index e5f3da5..716de1a 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -578,8 +578,7 @@ u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr)
  * Returns 0 (packet sent successfully) under all circumstances,
  * since the broadcast link's pseudo-bearer never blocks
  */
-static int tipc_bcbearer_send(struct sk_buff *buf,
-			      struct tipc_bearer *unused1,
+static int tipc_bcbearer_send(struct sk_buff *buf, struct tipc_bearer *unused1,
 			      struct tipc_media_addr *unused2)
 {
 	int bp_index;
diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h
index a933065..6ee587b 100644
--- a/net/tipc/bcast.h
+++ b/net/tipc/bcast.h
@@ -75,7 +75,8 @@ void tipc_nmap_remove(struct tipc_node_map *nm_ptr, u32 node);
 /**
  * tipc_nmap_equal - test for equality of node maps
  */
-static inline int tipc_nmap_equal(struct tipc_node_map *nm_a, struct tipc_node_map *nm_b)
+static inline int tipc_nmap_equal(struct tipc_node_map *nm_a,
+				  struct tipc_node_map *nm_b)
 {
 	return !memcmp(nm_a, nm_b, sizeof(*nm_a));
 }
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index eedff58..ecc758c 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -70,8 +70,7 @@ struct tipc_link_req {
  * @dest_domain: network domain of node(s) which should respond to message
  * @b_ptr: ptr to bearer issuing message
  */
-static struct sk_buff *tipc_disc_init_msg(u32 type,
-					  u32 dest_domain,
+static struct sk_buff *tipc_disc_init_msg(u32 type, u32 dest_domain,
 					  struct tipc_bearer *b_ptr)
 {
 	struct sk_buff *buf = tipc_buf_acquire(INT_H_SIZE);
@@ -346,8 +345,8 @@ exit:
  *
  * Returns 0 if successful, otherwise -errno.
  */
-int tipc_disc_create(struct tipc_bearer *b_ptr,
-		     struct tipc_media_addr *dest, u32 dest_domain)
+int tipc_disc_create(struct tipc_bearer *b_ptr, struct tipc_media_addr *dest,
+		     u32 dest_domain)
 {
 	struct tipc_link_req *req;
 
diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index fc60bea..c1aa37f 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -62,7 +62,7 @@ static struct eth_bearer eth_bearers[MAX_ETH_BEARERS];
 static int eth_started;
 
 static int recv_notification(struct notifier_block *nb, unsigned long evt,
-			      void *dv);
+			     void *dv);
 /*
  * Network device notifier info
  */
diff --git a/net/tipc/link.c b/net/tipc/link.c
index d34429d..b852c94 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -771,8 +771,7 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event)
  * link_bundle_buf(): Append contents of a buffer to
  * the tail of an existing one.
  */
-static int link_bundle_buf(struct tipc_link *l_ptr,
-			   struct sk_buff *bundler,
+static int link_bundle_buf(struct tipc_link *l_ptr, struct sk_buff *bundler,
 			   struct sk_buff *buf)
 {
 	struct tipc_msg *bundler_msg = buf_msg(bundler);
@@ -1064,8 +1063,7 @@ static int link_send_buf_fast(struct tipc_link *l_ptr, struct sk_buff *buf,
  */
 int tipc_link_send_sections_fast(struct tipc_port *sender,
 				 struct iovec const *msg_sect,
-				 const u32 num_sect,
-				 unsigned int total_len,
+				 const u32 num_sect, unsigned int total_len,
 				 u32 destaddr)
 {
 	struct tipc_msg *hdr = &sender->phdr;
@@ -1155,8 +1153,7 @@ exit:
  */
 static int link_send_sections_long(struct tipc_port *sender,
 				   struct iovec const *msg_sect,
-				   u32 num_sect,
-				   unsigned int total_len,
+				   u32 num_sect, unsigned int total_len,
 				   u32 destaddr)
 {
 	struct tipc_link *l_ptr;
@@ -1408,7 +1405,7 @@ static void link_reset_all(unsigned long addr)
 }
 
 static void link_retransmit_failure(struct tipc_link *l_ptr,
-					struct sk_buff *buf)
+				    struct sk_buff *buf)
 {
 	struct tipc_msg *msg = buf_msg(buf);
 
@@ -1863,8 +1860,8 @@ static void link_handle_out_of_seq_msg(struct tipc_link *l_ptr,
  * Send protocol message to the other endpoint.
  */
 void tipc_link_send_proto_msg(struct tipc_link *l_ptr, u32 msg_typ,
-				int probe_msg, u32 gap, u32 tolerance,
-				u32 priority, u32 ack_mtu)
+			      int probe_msg, u32 gap, u32 tolerance,
+			      u32 priority, u32 ack_mtu)
 {
 	struct sk_buff *buf = NULL;
 	struct tipc_msg *msg = l_ptr->pmsg;
@@ -2107,8 +2104,7 @@ exit:
  * another bearer. Owner node is locked.
  */
 static void tipc_link_tunnel(struct tipc_link *l_ptr,
-			     struct tipc_msg *tunnel_hdr,
-			     struct tipc_msg  *msg,
+			     struct tipc_msg *tunnel_hdr, struct tipc_msg *msg,
 			     u32 selector)
 {
 	struct tipc_link *tunnel;
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index c2a2613..ced60e2 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -51,8 +51,8 @@ u32 tipc_msg_tot_importance(struct tipc_msg *m)
 }
 
 
-void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
-			    u32 hsize, u32 destnode)
+void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
+		   u32 destnode)
 {
 	memset(m, 0, hsize);
 	msg_set_version(m);
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 511019a..5e4ccf5 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -719,8 +719,8 @@ static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n)
 }
 
 u32 tipc_msg_tot_importance(struct tipc_msg *m);
-void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
-			    u32 hsize, u32 destnode);
+void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
+		   u32 destnode);
 int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
 		   u32 num_sect, unsigned int total_len, int max_size,
 		   struct sk_buff **buf);
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index 24b1679..09dcd54 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -440,7 +440,7 @@ found:
  * sequence overlapping with the requested sequence
  */
 static void tipc_nameseq_subscribe(struct name_seq *nseq,
-					struct tipc_subscription *s)
+				   struct tipc_subscription *s)
 {
 	struct sub_seq *sseq = nseq->sseqs;
 
@@ -662,7 +662,7 @@ exit:
  * tipc_nametbl_publish - add name publication to network name tables
  */
 struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
-				    u32 scope, u32 port_ref, u32 key)
+					 u32 scope, u32 port_ref, u32 key)
 {
 	struct publication *publ;
 
@@ -753,7 +753,7 @@ void tipc_nametbl_unsubscribe(struct tipc_subscription *s)
  * subseq_list - print specified sub-sequence contents into the given buffer
  */
 static int subseq_list(struct sub_seq *sseq, char *buf, int len, u32 depth,
-			u32 index)
+		       u32 index)
 {
 	char portIdStr[27];
 	const char *scope_str[] = {"", " zone", " cluster", " node"};
@@ -792,7 +792,7 @@ static int subseq_list(struct sub_seq *sseq, char *buf, int len, u32 depth,
  * nameseq_list - print specified name sequence contents into the given buffer
  */
 static int nameseq_list(struct name_seq *seq, char *buf, int len, u32 depth,
-			 u32 type, u32 lowbound, u32 upbound, u32 index)
+			u32 type, u32 lowbound, u32 upbound, u32 index)
 {
 	struct sub_seq *sseq;
 	char typearea[11];
@@ -849,7 +849,7 @@ static int nametbl_header(char *buf, int len, u32 depth)
  * nametbl_list - print specified name table contents into the given buffer
  */
 static int nametbl_list(char *buf, int len, u32 depth_info,
-			 u32 type, u32 lowbound, u32 upbound)
+			u32 type, u32 lowbound, u32 upbound)
 {
 	struct hlist_head *seq_head;
 	struct name_seq *seq;
diff --git a/net/tipc/name_table.h b/net/tipc/name_table.h
index 71cb4dc..f02f48b 100644
--- a/net/tipc/name_table.h
+++ b/net/tipc/name_table.h
@@ -87,14 +87,15 @@ extern rwlock_t tipc_nametbl_lock;
 struct sk_buff *tipc_nametbl_get(const void *req_tlv_area, int req_tlv_space);
 u32 tipc_nametbl_translate(u32 type, u32 instance, u32 *node);
 int tipc_nametbl_mc_translate(u32 type, u32 lower, u32 upper, u32 limit,
-			 struct tipc_port_list *dports);
+			      struct tipc_port_list *dports);
 struct publication *tipc_nametbl_publish(u32 type, u32 lower, u32 upper,
-				    u32 scope, u32 port_ref, u32 key);
+					 u32 scope, u32 port_ref, u32 key);
 int tipc_nametbl_withdraw(u32 type, u32 lower, u32 ref, u32 key);
 struct publication *tipc_nametbl_insert_publ(u32 type, u32 lower, u32 upper,
-					u32 scope, u32 node, u32 ref, u32 key);
-struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower,
-					u32 node, u32 ref, u32 key);
+					     u32 scope, u32 node, u32 ref,
+					     u32 key);
+struct publication *tipc_nametbl_remove_publ(u32 type, u32 lower, u32 node,
+					     u32 ref, u32 key);
 void tipc_nametbl_subscribe(struct tipc_subscription *s);
 void tipc_nametbl_unsubscribe(struct tipc_subscription *s);
 int tipc_nametbl_init(void);
diff --git a/net/tipc/node_subscr.c b/net/tipc/node_subscr.c
index 5e34b01..8a7384c 100644
--- a/net/tipc/node_subscr.c
+++ b/net/tipc/node_subscr.c
@@ -42,7 +42,7 @@
  * tipc_nodesub_subscribe - create "node down" subscription for specified node
  */
 void tipc_nodesub_subscribe(struct tipc_node_subscr *node_sub, u32 addr,
-		       void *usr_handle, net_ev_handler handle_down)
+			    void *usr_handle, net_ev_handler handle_down)
 {
 	if (in_own_node(addr)) {
 		node_sub->node = NULL;
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 0bb185a..b3ed2fc 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -207,9 +207,10 @@ exit:
  * Returns pointer to (locked) TIPC port, or NULL if unable to create it
  */
 struct tipc_port *tipc_createport(struct sock *sk,
-			u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
-			void (*wakeup)(struct tipc_port *),
-			const u32 importance)
+				  u32 (*dispatcher)(struct tipc_port *,
+				  struct sk_buff *),
+				  void (*wakeup)(struct tipc_port *),
+				  const u32 importance)
 {
 	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 241f529..5a7026b 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -107,8 +107,10 @@ struct tipc_port_list;
  * TIPC port manipulation routines
  */
 struct tipc_port *tipc_createport(struct sock *sk,
-		u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
-		void (*wakeup)(struct tipc_port *), const u32 importance);
+				  u32 (*dispatcher)(struct tipc_port *,
+				  struct sk_buff *),
+				  void (*wakeup)(struct tipc_port *),
+				  const u32 importance);
 
 int tipc_reject_msg(struct sk_buff *buf, u32 err);
 
@@ -126,9 +128,9 @@ int tipc_portunreturnable(u32 portref, unsigned int *isunreturnable);
 int tipc_set_portunreturnable(u32 portref, unsigned int isunreturnable);
 
 int tipc_publish(u32 portref, unsigned int scope,
-		struct tipc_name_seq const *name_seq);
+		 struct tipc_name_seq const *name_seq);
 int tipc_withdraw(u32 portref, unsigned int scope,
-		struct tipc_name_seq const *name_seq);
+		  struct tipc_name_seq const *name_seq);
 
 int tipc_connect(u32 portref, struct tipc_portid const *port);
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 14ed54e..ce8249c 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -278,7 +278,7 @@ void tipc_sock_release_local(struct socket *sock)
  */
 
 int tipc_sock_accept_local(struct socket *sock, struct socket **newsock,
-			    int flags)
+			   int flags)
 {
 	struct sock *sk = sock->sk;
 	int ret;
@@ -889,7 +889,7 @@ static void set_orig_addr(struct msghdr *m, struct tipc_msg *msg)
  * Returns 0 if successful, otherwise errno
  */
 static int anc_data_recv(struct msghdr *m, struct tipc_msg *msg,
-				struct tipc_port *tport)
+			 struct tipc_port *tport)
 {
 	u32 anc_data[3];
 	u32 err;
@@ -1736,8 +1736,8 @@ restart:
  *
  * Returns 0 on success, errno otherwise
  */
-static int setsockopt(struct socket *sock,
-		      int lvl, int opt, char __user *ov, unsigned int ol)
+static int setsockopt(struct socket *sock, int lvl, int opt, char __user *ov,
+		      unsigned int ol)
 {
 	struct sock *sk = sock->sk;
 	struct tipc_port *tport = tipc_sk_port(sk);
@@ -1795,8 +1795,8 @@ static int setsockopt(struct socket *sock,
  *
  * Returns 0 on success, errno otherwise
  */
-static int getsockopt(struct socket *sock,
-		      int lvl, int opt, char __user *ov, int __user *ol)
+static int getsockopt(struct socket *sock, int lvl, int opt, char __user *ov,
+		      int __user *ol)
 {
 	struct sock *sk = sock->sk;
 	struct tipc_port *tport = tipc_sk_port(sk);
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index f6be92a..d38bb45 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -117,10 +117,8 @@ static void subscr_send_event(struct tipc_subscription *sub, u32 found_lower,
  *
  * Returns 1 if there is overlap, otherwise 0.
  */
-int tipc_subscr_overlap(struct tipc_subscription *sub,
-			u32 found_lower,
+int tipc_subscr_overlap(struct tipc_subscription *sub, u32 found_lower,
 			u32 found_upper)
-
 {
 	if (found_lower < sub->seq.lower)
 		found_lower = sub->seq.lower;
@@ -136,13 +134,9 @@ int tipc_subscr_overlap(struct tipc_subscription *sub,
  *
  * Protected by nameseq.lock in name_table.c
  */
-void tipc_subscr_report_overlap(struct tipc_subscription *sub,
-				u32 found_lower,
-				u32 found_upper,
-				u32 event,
-				u32 port_ref,
-				u32 node,
-				int must)
+void tipc_subscr_report_overlap(struct tipc_subscription *sub, u32 found_lower,
+				u32 found_upper, u32 event, u32 port_ref,
+				u32 node, int must)
 {
 	if (!tipc_subscr_overlap(sub, found_lower, found_upper))
 		return;
diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h
index 43e6d63..393e417 100644
--- a/net/tipc/subscr.h
+++ b/net/tipc/subscr.h
@@ -67,17 +67,12 @@ struct tipc_subscription {
 	struct tipc_event evt;
 };
 
-int tipc_subscr_overlap(struct tipc_subscription *sub,
-			u32 found_lower,
+int tipc_subscr_overlap(struct tipc_subscription *sub, u32 found_lower,
 			u32 found_upper);
 
-void tipc_subscr_report_overlap(struct tipc_subscription *sub,
-				u32 found_lower,
-				u32 found_upper,
-				u32 event,
-				u32 port_ref,
-				u32 node,
-				int must_report);
+void tipc_subscr_report_overlap(struct tipc_subscription *sub, u32 found_lower,
+				u32 found_upper, u32 event, u32 port_ref,
+				u32 node, int must);
 
 int tipc_subscr_start(void);
 
-- 
cgit v0.10.2


From 796c75d0d3ef13cd1df00779abb8b27edb630504 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:48 -0400
Subject: tipc: enhance priority of link protocol packet

pfifo_fast is set as default traffic class queueing discipline. This
queue has three so called "bands". Within each band, FIFO rules apply.
However, as long as there are packets waiting in band 0, band 1 won't
be processed.

Now all kind of TIPC type packet priorities are never set, that is,
their priorities are 0, so they are mapped to band 1 of pfifo_fast
qdisc. But, especially during link congestion, if link protocol packet
can be sent out as earlier as possible than other type of packets so
that protocol packet can arrive at peer endpoint in time, the peer
will timely reset its link timeout timer to keep the link alive.
So enhancing the priority of link protocol packets can meet the
specific demand to avoid unnecessary link reset due to a transient
link congestion.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/link.c b/net/tipc/link.c
index b852c94..b6de1aa 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -41,6 +41,8 @@
 #include "discover.h"
 #include "config.h"
 
+#include <linux/pkt_sched.h>
+
 /*
  * Error message prefixes
  */
@@ -1947,6 +1949,7 @@ void tipc_link_send_proto_msg(struct tipc_link *l_ptr, u32 msg_typ,
 		return;
 
 	skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg));
+	buf->priority = TC_PRIO_CONTROL;
 
 	/* Defer message if bearer is already blocked */
 	if (tipc_bearer_blocked(l_ptr->b_ptr)) {
-- 
cgit v0.10.2


From 7410f967ba9bdc14b1e336e5d235929ed878cbfc Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:49 -0400
Subject: tipc: make tipc_link_send_sections_fast exit earlier

Once message build request function returns invalid code, the
process of sending message cannot continue. So in case of message
build failure, tipc_link_send_sections_fast() should return
immediately.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/link.c b/net/tipc/link.c
index b6de1aa..b6ffa9f 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1082,6 +1082,9 @@ again:
 	 */
 	res = tipc_msg_build(hdr, msg_sect, num_sect, total_len,
 			     sender->max_pkt, &buf);
+	/* Exit if build request was invalid */
+	if (unlikely(res < 0))
+		return res;
 
 	read_lock_bh(&tipc_net_lock);
 	node = tipc_node_find(destaddr);
@@ -1098,10 +1101,6 @@ exit:
 				return res;
 			}
 
-			/* Exit if build request was invalid */
-			if (unlikely(res < 0))
-				goto exit;
-
 			/* Exit if link (or bearer) is congested */
 			if (link_congested(l_ptr) ||
 			    tipc_bearer_blocked(l_ptr->b_ptr)) {
-- 
cgit v0.10.2


From 126c0524648631a0f6fba4d016586b236209fe6f Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:50 -0400
Subject: tipc: fix wrong return value for link_send_sections_long routine

When skb buffer cannot be allocated in link_send_sections_long(),
-ENOMEM error code instead of -EFAULT should be returned to its
caller.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/link.c b/net/tipc/link.c
index b6ffa9f..0cc3d90 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1168,6 +1168,7 @@ static int link_send_sections_long(struct tipc_port *sender,
 	const unchar *sect_crs;
 	int curr_sect;
 	u32 fragm_no;
+	int res = 0;
 
 again:
 	fragm_no = 1;
@@ -1215,12 +1216,13 @@ again:
 			sz = fragm_rest;
 
 		if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) {
+			res = -EFAULT;
 error:
 			for (; buf_chain; buf_chain = buf) {
 				buf = buf_chain->next;
 				kfree_skb(buf_chain);
 			}
-			return -EFAULT;
+			return res;
 		}
 		sect_crs += sz;
 		sect_rest -= sz;
@@ -1241,8 +1243,10 @@ error:
 			msg_set_fragm_no(&fragm_hdr, ++fragm_no);
 			prev = buf;
 			buf = tipc_buf_acquire(fragm_sz + INT_H_SIZE);
-			if (!buf)
+			if (!buf) {
+				res = -ENOMEM;
 				goto error;
+			}
 
 			buf->next = NULL;
 			prev->next = buf;
-- 
cgit v0.10.2


From 2537af9dcabbdd6c93c041a955d3a9ae42c0c008 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Mon, 17 Jun 2013 10:54:51 -0400
Subject: tipc: remove dev_base_lock use from enable_bearer

Convert enable_bearer() to RCU locking with dev_get_by_name().

Based on a similar changeset in commit 840a185d ["aoe: remove
dev_base_lock use from aoecmd_cfg_pkts()"] -- quoting that:

  "dev_base_lock is the legacy way to lock the device list,
   and is planned to disappear. (writers hold RTNL, readers
   hold RCU lock)"

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index c1aa37f..40ea40c 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -162,8 +162,7 @@ static void setup_bearer(struct work_struct *work)
  */
 static int enable_bearer(struct tipc_bearer *tb_ptr)
 {
-	struct net_device *dev = NULL;
-	struct net_device *pdev = NULL;
+	struct net_device *dev;
 	struct eth_bearer *eb_ptr = &eth_bearers[0];
 	struct eth_bearer *stop = &eth_bearers[MAX_ETH_BEARERS];
 	char *driver_name = strchr((const char *)tb_ptr->name, ':') + 1;
@@ -178,15 +177,7 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
 	}
 
 	/* Find device with specified name */
-	read_lock(&dev_base_lock);
-	for_each_netdev(&init_net, pdev) {
-		if (!strncmp(pdev->name, driver_name, IFNAMSIZ)) {
-			dev = pdev;
-			dev_hold(dev);
-			break;
-		}
-	}
-	read_unlock(&dev_base_lock);
+	dev = dev_get_by_name(&init_net, driver_name);
 	if (!dev)
 		return -ENODEV;
 
diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c
index baa9df4..ad2e1ec 100644
--- a/net/tipc/ib_media.c
+++ b/net/tipc/ib_media.c
@@ -155,8 +155,7 @@ static void setup_bearer(struct work_struct *work)
  */
 static int enable_bearer(struct tipc_bearer *tb_ptr)
 {
-	struct net_device *dev = NULL;
-	struct net_device *pdev = NULL;
+	struct net_device *dev;
 	struct ib_bearer *ib_ptr = &ib_bearers[0];
 	struct ib_bearer *stop = &ib_bearers[MAX_IB_BEARERS];
 	char *driver_name = strchr((const char *)tb_ptr->name, ':') + 1;
@@ -171,15 +170,7 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
 	}
 
 	/* Find device with specified name */
-	read_lock(&dev_base_lock);
-	for_each_netdev(&init_net, pdev) {
-		if (!strncmp(pdev->name, driver_name, IFNAMSIZ)) {
-			dev = pdev;
-			dev_hold(dev);
-			break;
-		}
-	}
-	read_unlock(&dev_base_lock);
+	dev = dev_get_by_name(&init_net, driver_name);
 	if (!dev)
 		return -ENODEV;
 
-- 
cgit v0.10.2


From 72bb72b0d98847d22c6fae4e170121f3640f0f60 Mon Sep 17 00:00:00 2001
From: Michael Chan <mchan@broadcom.com>
Date: Mon, 17 Jun 2013 13:47:25 -0700
Subject: tg3: Prevent system hang during repeated EEH errors.

The current tg3 code assumes the pci_error_handlers to be always called
in sequence.  In particular, during ->error_detected(), NAPI is disabled
and the device is shutdown.  The device is later reset and NAPI
re-enabled in ->slot_reset() and ->resume().

In EEH, if more than 6 errors are detected in a hour, only
->error_detected() will be called.  This will leave the driver in an
inconsistent state as NAPI is disabled but netif_running state is still
true.  When the device is later closed, we'll try to disable NAPI again
and it will loop forever.

We fix this by closing the device if we encounter any error conditions
during the normal sequence of the pci_error_handlers.

v2: Remove the changes in tg3_io_resume() based on Benjamin Poirier's
    feedback.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 28a645f..297fc13 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -17747,10 +17747,13 @@ static pci_ers_result_t tg3_io_error_detected(struct pci_dev *pdev,
 	tg3_full_unlock(tp);
 
 done:
-	if (state == pci_channel_io_perm_failure)
+	if (state == pci_channel_io_perm_failure) {
+		tg3_napi_enable(tp);
+		dev_close(netdev);
 		err = PCI_ERS_RESULT_DISCONNECT;
-	else
+	} else {
 		pci_disable_device(pdev);
+	}
 
 	rtnl_unlock();
 
@@ -17796,6 +17799,10 @@ static pci_ers_result_t tg3_io_slot_reset(struct pci_dev *pdev)
 	rc = PCI_ERS_RESULT_RECOVERED;
 
 done:
+	if (rc != PCI_ERS_RESULT_RECOVERED && netif_running(netdev)) {
+		tg3_napi_enable(tp);
+		dev_close(netdev);
+	}
 	rtnl_unlock();
 
 	return rc;
-- 
cgit v0.10.2


From cedb743f3e8db12cc76a706888792497953e93bb Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 17 Jun 2013 19:30:35 +0200
Subject: bonding: don't call alb_set_slave_mac_addr() while atomic

alb_set_slave_mac_addr() sets the mac address in alb mode via
dev_set_mac_address(), which might sleep. It's called from
alb_handle_addr_collision_on_attach() in atomic context (under
read_lock(bond->lock)), thus triggering a bug.

Fix this by moving the lock inside alb_handle_addr_collision_on_attach().

v1->v2:
As Nikolay Aleksandrov noticed, we can drop the bond->lock completely.
Also, use bond_slave_has_mac(), when possible.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index a236234..27fe329 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1175,16 +1175,13 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla
  * @slave.
  *
  * assumption: this function is called before @slave is attached to the
- * 	       bond slave list.
- *
- * caller must hold the bond lock for write since the mac addresses are compared
- * and may be swapped.
+ *	       bond slave list.
  */
 static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slave *slave)
 {
-	struct slave *tmp_slave1, *tmp_slave2, *free_mac_slave;
+	struct slave *tmp_slave1, *free_mac_slave = NULL;
 	struct slave *has_bond_addr = bond->curr_active_slave;
-	int i, j, found = 0;
+	int i;
 
 	if (bond->slave_cnt == 0) {
 		/* this is the first slave */
@@ -1196,15 +1193,7 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
 	 * slaves in the bond.
 	 */
 	if (!ether_addr_equal_64bits(slave->perm_hwaddr, bond->dev->dev_addr)) {
-		bond_for_each_slave(bond, tmp_slave1, i) {
-			if (ether_addr_equal_64bits(tmp_slave1->dev->dev_addr,
-						    slave->dev->dev_addr)) {
-				found = 1;
-				break;
-			}
-		}
-
-		if (!found)
+		if (!bond_slave_has_mac(bond, slave->dev->dev_addr))
 			return 0;
 
 		/* Try setting slave mac to bond address and fall-through
@@ -1215,19 +1204,8 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
 	/* The slave's address is equal to the address of the bond.
 	 * Search for a spare address in the bond for this slave.
 	 */
-	free_mac_slave = NULL;
-
 	bond_for_each_slave(bond, tmp_slave1, i) {
-		found = 0;
-		bond_for_each_slave(bond, tmp_slave2, j) {
-			if (ether_addr_equal_64bits(tmp_slave1->perm_hwaddr,
-						    tmp_slave2->dev->dev_addr)) {
-				found = 1;
-				break;
-			}
-		}
-
-		if (!found) {
+		if (!bond_slave_has_mac(bond, tmp_slave1->perm_hwaddr)) {
 			/* no slave has tmp_slave1's perm addr
 			 * as its curr addr
 			 */
@@ -1607,15 +1585,7 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave)
 		return res;
 	}
 
-	/* caller must hold the bond lock for write since the mac addresses
-	 * are compared and may be swapped.
-	 */
-	read_lock(&bond->lock);
-
 	res = alb_handle_addr_collision_on_attach(bond, slave);
-
-	read_unlock(&bond->lock);
-
 	if (res) {
 		return res;
 	}
-- 
cgit v0.10.2


From 32bc9b46d840d08e1c8f58eaf500d0e596c33659 Mon Sep 17 00:00:00 2001
From: Chris Healy <cphealy@gmail.com>
Date: Mon, 17 Jun 2013 07:25:06 -0700
Subject: fec: Add support to restart autonegotiate

Add ethtool operation to restart autonegotiation via the PHY.

Tested on i.MX28EVK.

Signed-off-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index c540055..46f2544 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1435,6 +1435,17 @@ static int fec_enet_set_pauseparam(struct net_device *ndev,
 	return 0;
 }
 
+static int fec_enet_nway_reset(struct net_device *dev)
+{
+	struct fec_enet_private *fep = netdev_priv(dev);
+	struct phy_device *phydev = fep->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return genphy_restart_aneg(phydev);
+}
+
 static const struct ethtool_ops fec_enet_ethtool_ops = {
 	.get_pauseparam		= fec_enet_get_pauseparam,
 	.set_pauseparam		= fec_enet_set_pauseparam,
@@ -1443,6 +1454,7 @@ static const struct ethtool_ops fec_enet_ethtool_ops = {
 	.get_drvinfo		= fec_enet_get_drvinfo,
 	.get_link		= ethtool_op_get_link,
 	.get_ts_info		= fec_enet_get_ts_info,
+	.nway_reset		= fec_enet_nway_reset,
 };
 
 static int fec_enet_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
-- 
cgit v0.10.2


From 939cfa75a0cea97aa60cb88e3722baefdceb4e72 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 17 Jun 2013 11:40:04 +0200
Subject: net: sctp: get rid of t_new macro for kzalloc

t_new rather obfuscates things where everyone else is using actual
function names instead of that macro, so replace it with kzalloc,
which is the function t_new wraps.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index cd89510..b9f136a 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -575,9 +575,6 @@ for (pos = chunk->subh.fwdtsn_hdr->skip;\
 /* Round an int up to the next multiple of 4.  */
 #define WORD_ROUND(s) (((s)+3)&~3)
 
-/* Make a new instance of type.  */
-#define t_new(type, flags)	kzalloc(sizeof(type), flags)
-
 /* Compare two timevals.  */
 #define tv_lt(s, t) \
    (s.tv_sec < t.tv_sec || (s.tv_sec == t.tv_sec && s.tv_usec < t.tv_usec))
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 756025c..bf6e6bd 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -355,7 +355,7 @@ struct sctp_association *sctp_association_new(const struct sctp_endpoint *ep,
 {
 	struct sctp_association *asoc;
 
-	asoc = t_new(struct sctp_association, gfp);
+	asoc = kzalloc(sizeof(*asoc), gfp);
 	if (!asoc)
 		goto fail;
 
diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c
index 41145fe..64977ea 100644
--- a/net/sctp/bind_addr.c
+++ b/net/sctp/bind_addr.c
@@ -162,7 +162,7 @@ int sctp_add_bind_addr(struct sctp_bind_addr *bp, union sctp_addr *new,
 	struct sctp_sockaddr_entry *addr;
 
 	/* Add the address to the bind address list.  */
-	addr = t_new(struct sctp_sockaddr_entry, gfp);
+	addr = kzalloc(sizeof(*addr), gfp);
 	if (!addr)
 		return -ENOMEM;
 
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 5fbd7bc..a8b2674 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -192,9 +192,10 @@ struct sctp_endpoint *sctp_endpoint_new(struct sock *sk, gfp_t gfp)
 	struct sctp_endpoint *ep;
 
 	/* Build a local endpoint. */
-	ep = t_new(struct sctp_endpoint, gfp);
+	ep = kzalloc(sizeof(*ep), gfp);
 	if (!ep)
 		goto fail;
+
 	if (!sctp_endpoint_init(ep, sk, gfp))
 		goto fail_init;
 
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index fffc7b6..4f3e13b 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -402,7 +402,7 @@ static void sctp_v6_copy_addrlist(struct list_head *addrlist,
 	read_lock_bh(&in6_dev->lock);
 	list_for_each_entry(ifp, &in6_dev->addr_list, if_list) {
 		/* Add the address to the local list.  */
-		addr = t_new(struct sctp_sockaddr_entry, GFP_ATOMIC);
+		addr = kzalloc(sizeof(*addr), GFP_ATOMIC);
 		if (addr) {
 			addr->a.v6.sin6_family = AF_INET6;
 			addr->a.v6.sin6_port = 0;
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index eaee00c..fad7d1b 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -153,7 +153,7 @@ static void sctp_v4_copy_addrlist(struct list_head *addrlist,
 
 	for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
 		/* Add the address to the local list.  */
-		addr = t_new(struct sctp_sockaddr_entry, GFP_ATOMIC);
+		addr = kzalloc(sizeof(*addr), GFP_ATOMIC);
 		if (addr) {
 			addr->a.v4.sin_family = AF_INET;
 			addr->a.v4.sin_port = 0;
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 098f1d5f..5d3c71b 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -116,7 +116,7 @@ struct sctp_transport *sctp_transport_new(struct net *net,
 {
 	struct sctp_transport *transport;
 
-	transport = t_new(struct sctp_transport, gfp);
+	transport = kzalloc(sizeof(*transport), gfp);
 	if (!transport)
 		goto fail;
 
-- 
cgit v0.10.2


From dda9192851dcf904b4d1095480834f2a4f814ae3 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 17 Jun 2013 11:40:05 +0200
Subject: net: sctp: remove SCTP_STATIC macro

SCTP_STATIC is just another define for the static keyword. It's use
is inconsistent in the SCTP code anyway and it was introduced in the
initial implementation of SCTP in 2.5. We have a regression suite in
lksctp-tools, but this is for user space only, so noone makes use of
this macro anymore. The kernel test suite for 2.5 is incompatible with
the current SCTP code anyway.

So simply Remove it, to be more consistent with the rest of the kernel
code.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index b9f136a..6321c08 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -99,14 +99,6 @@
 #define SCTP_PROTOSW_FLAG INET_PROTOSW_PERMANENT
 #endif
 
-
-/* Certain internal static functions need to be exported when
- * compiled into the test frame.
- */
-#ifndef SCTP_STATIC
-#define SCTP_STATIC static
-#endif
-
 /*
  * Function declarations.
  */
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 69ce21e..7135fc0 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -66,7 +66,7 @@ static void sctp_datamsg_init(struct sctp_datamsg *msg)
 }
 
 /* Allocate and initialize datamsg. */
-SCTP_STATIC struct sctp_datamsg *sctp_datamsg_new(gfp_t gfp)
+static struct sctp_datamsg *sctp_datamsg_new(gfp_t gfp)
 {
 	struct sctp_datamsg *msg;
 	msg = kmalloc(sizeof(struct sctp_datamsg), gfp);
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 6533d81..4cfc746 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -903,11 +903,11 @@ hit:
 }
 
 /* Look up an association. BH-safe. */
-SCTP_STATIC
+static
 struct sctp_association *sctp_lookup_association(struct net *net,
 						 const union sctp_addr *laddr,
 						 const union sctp_addr *paddr,
-					    struct sctp_transport **transportp)
+						 struct sctp_transport **transportp)
 {
 	struct sctp_association *asoc;
 
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 4f3e13b..adeaa0e 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -145,8 +145,8 @@ static struct notifier_block sctp_inet6addr_notifier = {
 };
 
 /* ICMP error handler. */
-SCTP_STATIC void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
-			     u8 type, u8 code, int offset, __be32 info)
+static void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
+			u8 type, u8 code, int offset, __be32 info)
 {
 	struct inet6_dev *idev;
 	struct sock *sk;
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index fad7d1b..57b568c 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1312,7 +1312,7 @@ static struct pernet_operations sctp_net_ops = {
 };
 
 /* Initialize the universe into something sensible.  */
-SCTP_STATIC __init int sctp_init(void)
+static __init int sctp_init(void)
 {
 	int i;
 	int status = -EINVAL;
@@ -1499,7 +1499,7 @@ err_chunk_cachep:
 }
 
 /* Exit handler for the SCTP protocol.  */
-SCTP_STATIC __exit void sctp_exit(void)
+static __exit void sctp_exit(void)
 {
 	/* BUG.  This should probably do something useful like clean
 	 * up all the remaining associations and all that memory.
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index cf579e7..fc85487 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -68,9 +68,8 @@
 #include <net/sctp/sctp.h>
 #include <net/sctp/sm.h>
 
-SCTP_STATIC
-struct sctp_chunk *sctp_make_chunk(const struct sctp_association *asoc,
-				   __u8 type, __u8 flags, int paylen);
+static struct sctp_chunk *sctp_make_chunk(const struct sctp_association *asoc,
+					  __u8 type, __u8 flags, int paylen);
 static sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
 					const struct sctp_association *asoc,
 					const struct sctp_chunk *init_chunk,
@@ -1353,9 +1352,8 @@ const union sctp_addr *sctp_source(const struct sctp_chunk *chunk)
 /* Create a new chunk, setting the type and flags headers from the
  * arguments, reserving enough space for a 'paylen' byte payload.
  */
-SCTP_STATIC
-struct sctp_chunk *sctp_make_chunk(const struct sctp_association *asoc,
-				   __u8 type, __u8 flags, int paylen)
+static struct sctp_chunk *sctp_make_chunk(const struct sctp_association *asoc,
+					  __u8 type, __u8 flags, int paylen)
 {
 	struct sctp_chunk *retval;
 	sctp_chunkhdr_t *chunk_hdr;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 510dc79..75fe92a 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -84,11 +84,6 @@
 #include <net/sctp/sctp.h>
 #include <net/sctp/sm.h>
 
-/* WARNING:  Please do not remove the SCTP_STATIC attribute to
- * any of the functions below as they are used to export functions
- * used by a project regression testsuite.
- */
-
 /* Forward declarations for internal helper functions. */
 static int sctp_writeable(struct sock *sk);
 static void sctp_wfree(struct sk_buff *skb);
@@ -279,7 +274,7 @@ static struct sctp_transport *sctp_addr_id2transport(struct sock *sk,
  *             sockaddr_in6 [RFC 2553]),
  *   addr_len - the size of the address structure.
  */
-SCTP_STATIC int sctp_bind(struct sock *sk, struct sockaddr *addr, int addr_len)
+static int sctp_bind(struct sock *sk, struct sockaddr *addr, int addr_len)
 {
 	int retval = 0;
 
@@ -333,7 +328,7 @@ static struct sctp_af *sctp_sockaddr_af(struct sctp_sock *opt,
 }
 
 /* Bind a local address either to an endpoint or to an association.  */
-SCTP_STATIC int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
+static int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
 {
 	struct net *net = sock_net(sk);
 	struct sctp_sock *sp = sctp_sk(sk);
@@ -964,9 +959,9 @@ int sctp_asconf_mgmt(struct sctp_sock *sp, struct sctp_sockaddr_entry *addrw)
  *
  * Returns 0 if ok, <0 errno code on error.
  */
-SCTP_STATIC int sctp_setsockopt_bindx(struct sock* sk,
-				      struct sockaddr __user *addrs,
-				      int addrs_size, int op)
+static int sctp_setsockopt_bindx(struct sock* sk,
+				 struct sockaddr __user *addrs,
+				 int addrs_size, int op)
 {
 	struct sockaddr *kaddrs;
 	int err;
@@ -1312,7 +1307,7 @@ out_free:
  *
  * Returns >=0 if ok, <0 errno code on error.
  */
-SCTP_STATIC int __sctp_setsockopt_connectx(struct sock* sk,
+static int __sctp_setsockopt_connectx(struct sock* sk,
 				      struct sockaddr __user *addrs,
 				      int addrs_size,
 				      sctp_assoc_t *assoc_id)
@@ -1350,9 +1345,9 @@ SCTP_STATIC int __sctp_setsockopt_connectx(struct sock* sk,
  * This is an older interface.  It's kept for backward compatibility
  * to the option that doesn't provide association id.
  */
-SCTP_STATIC int sctp_setsockopt_connectx_old(struct sock* sk,
-				      struct sockaddr __user *addrs,
-				      int addrs_size)
+static int sctp_setsockopt_connectx_old(struct sock* sk,
+					struct sockaddr __user *addrs,
+					int addrs_size)
 {
 	return __sctp_setsockopt_connectx(sk, addrs, addrs_size, NULL);
 }
@@ -1363,9 +1358,9 @@ SCTP_STATIC int sctp_setsockopt_connectx_old(struct sock* sk,
  * indication to the call.  Error is always negative and association id is
  * always positive.
  */
-SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
-				      struct sockaddr __user *addrs,
-				      int addrs_size)
+static int sctp_setsockopt_connectx(struct sock* sk,
+				    struct sockaddr __user *addrs,
+				    int addrs_size)
 {
 	sctp_assoc_t assoc_id = 0;
 	int err = 0;
@@ -1386,9 +1381,9 @@ SCTP_STATIC int sctp_setsockopt_connectx(struct sock* sk,
  * addrs_num structure member.  That way we can re-use the existing
  * code.
  */
-SCTP_STATIC int sctp_getsockopt_connectx3(struct sock* sk, int len,
-					char __user *optval,
-					int __user *optlen)
+static int sctp_getsockopt_connectx3(struct sock* sk, int len,
+				     char __user *optval,
+				     int __user *optlen)
 {
 	struct sctp_getaddrs_old param;
 	sctp_assoc_t assoc_id = 0;
@@ -1464,7 +1459,7 @@ SCTP_STATIC int sctp_getsockopt_connectx3(struct sock* sk, int len,
  * shutdown phase does not finish during this period, close() will
  * return but the graceful shutdown phase continues in the system.
  */
-SCTP_STATIC void sctp_close(struct sock *sk, long timeout)
+static void sctp_close(struct sock *sk, long timeout)
 {
 	struct net *net = sock_net(sk);
 	struct sctp_endpoint *ep;
@@ -1573,10 +1568,10 @@ static int sctp_error(struct sock *sk, int flags, int err)
  */
 /* BUG:  We do not implement the equivalent of sk_stream_wait_memory(). */
 
-SCTP_STATIC int sctp_msghdr_parse(const struct msghdr *, sctp_cmsgs_t *);
+static int sctp_msghdr_parse(const struct msghdr *, sctp_cmsgs_t *);
 
-SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
-			     struct msghdr *msg, size_t msg_len)
+static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
+			struct msghdr *msg, size_t msg_len)
 {
 	struct net *net = sock_net(sk);
 	struct sctp_sock *sp;
@@ -2034,9 +2029,9 @@ static int sctp_skb_pull(struct sk_buff *skb, int len)
  */
 static struct sk_buff *sctp_skb_recv_datagram(struct sock *, int, int, int *);
 
-SCTP_STATIC int sctp_recvmsg(struct kiocb *iocb, struct sock *sk,
-			     struct msghdr *msg, size_t len, int noblock,
-			     int flags, int *addr_len)
+static int sctp_recvmsg(struct kiocb *iocb, struct sock *sk,
+			struct msghdr *msg, size_t len, int noblock,
+			int flags, int *addr_len)
 {
 	struct sctp_ulpevent *event = NULL;
 	struct sctp_sock *sp = sctp_sk(sk);
@@ -3565,8 +3560,8 @@ static int sctp_setsockopt_paddr_thresholds(struct sock *sk,
  *   optval  - the buffer to store the value of the option.
  *   optlen  - the size of the buffer.
  */
-SCTP_STATIC int sctp_setsockopt(struct sock *sk, int level, int optname,
-				char __user *optval, unsigned int optlen)
+static int sctp_setsockopt(struct sock *sk, int level, int optname,
+			   char __user *optval, unsigned int optlen)
 {
 	int retval = 0;
 
@@ -3725,8 +3720,8 @@ out_nounlock:
  *
  * len: the size of the address.
  */
-SCTP_STATIC int sctp_connect(struct sock *sk, struct sockaddr *addr,
-			     int addr_len)
+static int sctp_connect(struct sock *sk, struct sockaddr *addr,
+			int addr_len)
 {
 	int err = 0;
 	struct sctp_af *af;
@@ -3752,7 +3747,7 @@ SCTP_STATIC int sctp_connect(struct sock *sk, struct sockaddr *addr,
 }
 
 /* FIXME: Write comments. */
-SCTP_STATIC int sctp_disconnect(struct sock *sk, int flags)
+static int sctp_disconnect(struct sock *sk, int flags)
 {
 	return -EOPNOTSUPP; /* STUB */
 }
@@ -3764,7 +3759,7 @@ SCTP_STATIC int sctp_disconnect(struct sock *sk, int flags)
  * descriptor will be returned from accept() to represent the newly
  * formed association.
  */
-SCTP_STATIC struct sock *sctp_accept(struct sock *sk, int flags, int *err)
+static struct sock *sctp_accept(struct sock *sk, int flags, int *err)
 {
 	struct sctp_sock *sp;
 	struct sctp_endpoint *ep;
@@ -3817,7 +3812,7 @@ out:
 }
 
 /* The SCTP ioctl handler. */
-SCTP_STATIC int sctp_ioctl(struct sock *sk, int cmd, unsigned long arg)
+static int sctp_ioctl(struct sock *sk, int cmd, unsigned long arg)
 {
 	int rc = -ENOTCONN;
 
@@ -3859,7 +3854,7 @@ out:
  * initialized the SCTP-specific portion of the sock.
  * The sock structure should already be zero-filled memory.
  */
-SCTP_STATIC int sctp_init_sock(struct sock *sk)
+static int sctp_init_sock(struct sock *sk)
 {
 	struct net *net = sock_net(sk);
 	struct sctp_sock *sp;
@@ -3993,7 +3988,7 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk)
 }
 
 /* Cleanup any SCTP per socket resources.  */
-SCTP_STATIC void sctp_destroy_sock(struct sock *sk)
+static void sctp_destroy_sock(struct sock *sk)
 {
 	struct sctp_sock *sp;
 
@@ -4028,7 +4023,7 @@ SCTP_STATIC void sctp_destroy_sock(struct sock *sk)
  *                     Disables further send  and  receive  operations
  *                     and initiates the SCTP shutdown sequence.
  */
-SCTP_STATIC void sctp_shutdown(struct sock *sk, int how)
+static void sctp_shutdown(struct sock *sk, int how)
 {
 	struct net *net = sock_net(sk);
 	struct sctp_endpoint *ep;
@@ -5700,8 +5695,8 @@ static int sctp_getsockopt_assoc_stats(struct sock *sk, int len,
 	return 0;
 }
 
-SCTP_STATIC int sctp_getsockopt(struct sock *sk, int level, int optname,
-				char __user *optval, int __user *optlen)
+static int sctp_getsockopt(struct sock *sk, int level, int optname,
+			   char __user *optval, int __user *optlen)
 {
 	int retval = 0;
 	int len;
@@ -6046,7 +6041,7 @@ static int sctp_get_port(struct sock *sk, unsigned short snum)
 /*
  *  Move a socket to LISTENING state.
  */
-SCTP_STATIC int sctp_listen_start(struct sock *sk, int backlog)
+static int sctp_listen_start(struct sock *sk, int backlog)
 {
 	struct sctp_sock *sp = sctp_sk(sk);
 	struct sctp_endpoint *ep = sp->ep;
@@ -6333,8 +6328,7 @@ static int sctp_autobind(struct sock *sk)
  * msg_control
  * points here
  */
-SCTP_STATIC int sctp_msghdr_parse(const struct msghdr *msg,
-				  sctp_cmsgs_t *cmsgs)
+static int sctp_msghdr_parse(const struct msghdr *msg, sctp_cmsgs_t *cmsgs)
 {
 	struct cmsghdr *cmsg;
 	struct msghdr *my_msg = (struct msghdr *)msg;
diff --git a/net/sctp/tsnmap.c b/net/sctp/tsnmap.c
index 396c451..b460195 100644
--- a/net/sctp/tsnmap.c
+++ b/net/sctp/tsnmap.c
@@ -161,8 +161,8 @@ int sctp_tsnmap_mark(struct sctp_tsnmap *map, __u32 tsn,
 
 
 /* Initialize a Gap Ack Block iterator from memory being provided.  */
-SCTP_STATIC void sctp_tsnmap_iter_init(const struct sctp_tsnmap *map,
-				       struct sctp_tsnmap_iter *iter)
+static void sctp_tsnmap_iter_init(const struct sctp_tsnmap *map,
+				  struct sctp_tsnmap_iter *iter)
 {
 	/* Only start looking one past the Cumulative TSN Ack Point.  */
 	iter->start = map->cumulative_tsn_ack_point + 1;
@@ -171,9 +171,9 @@ SCTP_STATIC void sctp_tsnmap_iter_init(const struct sctp_tsnmap *map,
 /* Get the next Gap Ack Blocks. Returns 0 if there was not another block
  * to get.
  */
-SCTP_STATIC int sctp_tsnmap_next_gap_ack(const struct sctp_tsnmap *map,
-					 struct sctp_tsnmap_iter *iter,
-					 __u16 *start, __u16 *end)
+static int sctp_tsnmap_next_gap_ack(const struct sctp_tsnmap *map,
+				    struct sctp_tsnmap_iter *iter,
+				    __u16 *start, __u16 *end)
 {
 	int ended = 0;
 	__u16 start_ = 0, end_ = 0, offset;
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 10c018a..44a45db 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -57,9 +57,9 @@ static void sctp_ulpevent_release_frag_data(struct sctp_ulpevent *event);
 
 
 /* Initialize an ULP event from an given skb.  */
-SCTP_STATIC void sctp_ulpevent_init(struct sctp_ulpevent *event,
-				    int msg_flags,
-				    unsigned int len)
+static void sctp_ulpevent_init(struct sctp_ulpevent *event,
+			       int msg_flags,
+			       unsigned int len)
 {
 	memset(event, 0, sizeof(struct sctp_ulpevent));
 	event->msg_flags = msg_flags;
@@ -67,8 +67,8 @@ SCTP_STATIC void sctp_ulpevent_init(struct sctp_ulpevent *event,
 }
 
 /* Create a new sctp_ulpevent.  */
-SCTP_STATIC struct sctp_ulpevent *sctp_ulpevent_new(int size, int msg_flags,
-						    gfp_t gfp)
+static struct sctp_ulpevent *sctp_ulpevent_new(int size, int msg_flags,
+					       gfp_t gfp)
 {
 	struct sctp_ulpevent *event;
 	struct sk_buff *skb;
-- 
cgit v0.10.2


From b32369f117bbdb009a6b410ec0926a88a83002b4 Mon Sep 17 00:00:00 2001
From: Isaku Yamahata <yamahata@valinux.co.jp>
Date: Fri, 14 Jun 2013 17:58:31 +0900
Subject: net, atm/ambassader: convert skb->tail into skb_tail_pointer(skb)

The change set of 27a884dc, "[SK_BUFF]: Convert skb->tail to sk_buff_data_t"
converted skb->tail from pointer into sk_buff_data_t. It missed skb->tail
in drivers/atm/ambassador.c.
This patch converts skb->tail into skb_tail_pointer(skb).

Found by inspection. Compile tested only.

Cc: Simon Horman <horms@verge.net.au>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index 77a7480d..62a7607 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -1403,7 +1403,7 @@ static void amb_free_rx_skb (struct atm_vcc * atm_vcc, struct sk_buff * skb) {
   rx.host_address = cpu_to_be32 (virt_to_bus (skb->data));
   
   skb->data = skb->head;
-  skb->tail = skb->head;
+  skb_reset_tail_pointer(skb);
   skb->len = 0;
   
   if (!rx_give (dev, &rx, pool)) {
-- 
cgit v0.10.2


From 499e2e6fcb9351844d721e4bd3f1184d879bd178 Mon Sep 17 00:00:00 2001
From: Isaku Yamahata <yamahata@valinux.co.jp>
Date: Fri, 14 Jun 2013 17:58:32 +0900
Subject: net, scsi/csgb4i: convert skb->transport_header into
 skb_transport_header(skb)

The change set of 1a37e412, "net: Use 16bits for *_headers fields
of struct skbuff" converted from sk_buff_data_t into 16bit integer.
So skb->tail needs to be converted to skb_tail_pointer(skb).

Found by inspection. Compile tested only.

Cc: Simon Horman <horms@verge.net.au>
Cc: Li RongQing <roy.qing.li@gmail.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index 3fecf35..9138d4e 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -358,7 +358,7 @@ static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb)
 		return DIV_ROUND_UP(skb->len, 8);
 	flits = skb_transport_offset(skb) / 8;
 	cnt = skb_shinfo(skb)->nr_frags;
-	if (skb->tail != skb->transport_header)
+	if (skb_tail_pointer(skb) != skb_transport_header(skb))
 		cnt++;
 	return flits + sgl_len(cnt);
 }
-- 
cgit v0.10.2


From 18f1d0541241855d928608ce6ce325e4cdad222d Mon Sep 17 00:00:00 2001
From: Isaku Yamahata <yamahata@valinux.co.jp>
Date: Fri, 14 Jun 2013 17:58:33 +0900
Subject: mv643xx_eth.c: convert skb->end into skb_end_poitner(skb)

The change set of 4305b541 "[SK_BUFF]: Convert skb->end to sk_buff_data_t"
converted skb->end from pointer to sk_buff_data_t.
The pointed value should be accessed via skb_end_pointer().

Since arm or ppc arch doesn't define NET_SKBUFF_DATA_USES_OFFSET,
skb->end is effectively pointer. So it doesn't cause a real problem.
But this patch is good for consistency.

Found by inspection. Compile test only.

Cc: Simon Horman <horms@verge.net.au>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index c7f9fb3..510d506 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -621,7 +621,7 @@ static int rxq_refill(struct rx_queue *rxq, int budget)
 
 		rx_desc = rxq->rx_desc_area + rx;
 
-		size = skb->end - skb->data;
+		size = skb_end_pointer(skb) - skb->data;
 		rx_desc->buf_ptr = dma_map_single(mp->dev->dev.parent,
 						  skb->data, size,
 						  DMA_FROM_DEVICE);
-- 
cgit v0.10.2


From 511efbbbc8ff210dae7feaf263d7f855ea357cbe Mon Sep 17 00:00:00 2001
From: Isaku Yamahata <yamahata@valinux.co.jp>
Date: Fri, 14 Jun 2013 17:58:34 +0900
Subject: pxa168_eth: convert skb->end into skb_end_pointer(skb)

The change set of 4305b541, "[SK_BUFF]: Convert skb->end to sk_buff_data_t"
converted skb->end from pointer type to sk_buff_data_t.
The pointed value should be accessed via skb_end_pointer().

Since arm arch doesn't define NET_SKBUFF_DATA_USES_OFFSET,
skb->end is effectively pointer. So it doesn't cause a real problem.
But this patch is good for consistency.

Found by inspection. Compile tested only.

Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index 2602cf7..ec20508 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -357,7 +357,7 @@ static void rxq_refill(struct net_device *dev)
 		/* Get 'used' Rx descriptor */
 		used_rx_desc = pep->rx_used_desc_q;
 		p_used_rx_desc = &pep->p_rx_desc_area[used_rx_desc];
-		size = skb->end - skb->data;
+		size = skb_end_pointer(skb) - skb->data;
 		p_used_rx_desc->buf_ptr = dma_map_single(NULL,
 							 skb->data,
 							 size,
-- 
cgit v0.10.2


From a267a6041fdb690de9570dab20a5f0fa417c8c9f Mon Sep 17 00:00:00 2001
From: Isaku Yamahata <yamahata@valinux.co.jp>
Date: Fri, 14 Jun 2013 17:58:35 +0900
Subject: staging/rtl8192u: convert skb->tail into skb_tail_pointer(skb)

The change set of 7a884dc "[SK_BUFF]: Convert skb->tail to sk_buff_data_t"
converted skb->tail from pointer into sk_buff_data_t.
Thus skb->tail is not always pointer, the area pointed by skb->tail
should be accessed via skb_tail_pointer().

Found by inspection. Compile tested only.

Cc: Simon Horman <horms@verge.net.au>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Reviewed-by: Simon Horman <horms@verge.net.au>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 71f5cde..a18430e 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -1271,8 +1271,8 @@ struct sk_buff *DrvAggr_Aggregation(struct net_device *dev, struct ieee80211_drv
 		/* Subframe drv Tx descriptor and firmware info setting */
 		skb = pSendList->tx_agg_frames[i];
 		tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
-		tx_agg_desc = (tx_desc_819x_usb_aggr_subframe *)agg_skb->tail;
-		tx_fwinfo = (tx_fwinfo_819x_usb *)(agg_skb->tail + sizeof(tx_desc_819x_usb_aggr_subframe));
+		tx_agg_desc = (tx_desc_819x_usb_aggr_subframe *)skb_tail_pointer(agg_skb);
+		tx_fwinfo = (tx_fwinfo_819x_usb *)(skb_tail_pointer(agg_skb) + sizeof(tx_desc_819x_usb_aggr_subframe));
 
 		memset(tx_fwinfo,0,sizeof(tx_fwinfo_819x_usb));
 		/* DWORD 0 */
-- 
cgit v0.10.2


From b01147140a2a609d91538fdfec8e2d688d379662 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 12 Jun 2013 14:55:40 +0200
Subject: iwlwifi: mvm: allow firmware crashes to wake system for debug

When the D3 firmware crashes, it can be helpful for debugging to
resume the system to get the SRAM snapshot to see why it crashed.
Allow enabling this with a debugfs option.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 8c49db0..7e5e5c2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -1026,6 +1026,12 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 	if (ret)
 		goto out;
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (mvm->d3_wake_sysassert)
+		d3_cfg_cmd_data.wakeup_flags |=
+			cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
+#endif
+
 	/* must be last -- this switches firmware state */
 	ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
 	if (ret)
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index b7643c1..63d19d9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -939,6 +939,9 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 #ifdef CONFIG_PM_SLEEP
 	MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
+	if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR,
+				 mvm->debugfs_dir, &mvm->d3_wake_sysassert))
+		goto err;
 #endif
 
 	/*
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index ad39a22..fbc0acb 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -460,6 +460,7 @@ struct iwl_mvm {
 #ifdef CONFIG_PM_SLEEP
 	int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
+	u32 d3_wake_sysassert; /* must be u32 for debugfs_create_bool */
 	bool d3_test_active;
 	bool store_d3_resume_sram;
 	void *d3_resume_sram;
-- 
cgit v0.10.2


From bc53cd49fcaa604cbef219c964df0db9c8ef452e Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 18 Jun 2013 06:29:56 +0300
Subject: iwlwifi: remove bt_ch_announce module param

This parameter is really not useful, remove it.
Leave the variable in priv in case someone wants
to play with it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 7aa9c8d..71db089 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -1355,8 +1355,8 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 			IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
 			true : false;
 
-	/* enable/disable bt channel inhibition */
-	priv->bt_ch_announce = iwlwifi_mod_params.bt_ch_announce;
+	/* bt channel inhibition enabled*/
+	priv->bt_ch_announce = true;
 	IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
 		       (priv->bt_ch_announce) ? "On" : "Off");
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 4f88613..01b9763 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1112,7 +1112,6 @@ struct iwl_mod_params iwlwifi_mod_params = {
 	.plcp_check = true,
 	.bt_coex_active = true,
 	.power_level = IWL_POWER_INDEX_1,
-	.bt_ch_announce = true,
 	.auto_agg = true,
 	.wd_disable = true,
 	/* the rest are 0 by default */
@@ -1221,11 +1220,6 @@ module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
 MODULE_PARM_DESC(antenna_coupling,
 		 "specify antenna coupling in dB (defualt: 0 dB)");
 
-module_param_named(bt_ch_inhibition, iwlwifi_mod_params.bt_ch_announce,
-		   bool, S_IRUGO);
-MODULE_PARM_DESC(bt_ch_inhibition,
-		 "Enable BT channel inhibition (default: enable)");
-
 module_param_named(plcp_check, iwlwifi_mod_params.plcp_check, bool, S_IRUGO);
 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-modparams.h b/drivers/net/wireless/iwlwifi/iwl-modparams.h
index d4ad505..e2e6492 100644
--- a/drivers/net/wireless/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/iwlwifi/iwl-modparams.h
@@ -101,7 +101,6 @@ enum iwl_power_level {
  * @power_level: power level, default = 1
  * @debug_level: levels are IWL_DL_*
  * @ant_coupling: antenna coupling in dB, default = 0
- * @bt_ch_announce: BT channel inhibition, default = enable
  * @auto_agg: enable agg. without check, default = true
  */
 struct iwl_mod_params {
@@ -119,7 +118,6 @@ struct iwl_mod_params {
 	u32 debug_level;
 #endif
 	int ant_coupling;
-	bool bt_ch_announce;
 	bool auto_agg;
 	char *nvm_file;
 };
-- 
cgit v0.10.2


From 8b5bf33575e112328af1e3cb233c7b162fe2cacd Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 18 Jun 2013 06:31:37 +0300
Subject: iwlwifi: remove plcp_check module parameter

Nobody will ever wants to run without this. Make it true always.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/rx.c b/drivers/net/wireless/iwlwifi/dvm/rx.c
index 2f3fd16..5d31a1a 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rx.c
@@ -335,8 +335,7 @@ static void iwlagn_recover_from_statistics(struct iwl_priv *priv,
 	if (msecs < 99)
 		return;
 
-	if (iwlwifi_mod_params.plcp_check &&
-	    !iwlagn_good_plcp_health(priv, cur_ofdm, cur_ofdm_ht, msecs))
+	if (!iwlagn_good_plcp_health(priv, cur_ofdm, cur_ofdm_ht, msecs))
 		iwl_force_rf_reset(priv, false);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 01b9763..b88bdec 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1109,7 +1109,6 @@ void iwl_drv_stop(struct iwl_drv *drv)
 /* shared module parameters */
 struct iwl_mod_params iwlwifi_mod_params = {
 	.restart_fw = true,
-	.plcp_check = true,
 	.bt_coex_active = true,
 	.power_level = IWL_POWER_INDEX_1,
 	.auto_agg = true,
@@ -1220,9 +1219,6 @@ module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
 MODULE_PARM_DESC(antenna_coupling,
 		 "specify antenna coupling in dB (defualt: 0 dB)");
 
-module_param_named(plcp_check, iwlwifi_mod_params.plcp_check, bool, S_IRUGO);
-MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
-
 module_param_named(wd_disable, iwlwifi_mod_params.wd_disable, int, S_IRUGO);
 MODULE_PARM_DESC(wd_disable,
 		"Disable stuck queue watchdog timer 0=system default, "
diff --git a/drivers/net/wireless/iwlwifi/iwl-modparams.h b/drivers/net/wireless/iwlwifi/iwl-modparams.h
index e2e6492..367b6c1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/iwlwifi/iwl-modparams.h
@@ -93,7 +93,6 @@ enum iwl_power_level {
  *	use IWL_DISABLE_HT_* constants
  * @amsdu_size_8K: enable 8K amsdu size, default = 0
  * @restart_fw: restart firmware, default = 1
- * @plcp_check: enable plcp health check, default = true
  * @wd_disable: enable stuck queue check, default = 0
  * @bt_coex_active: enable bt coex, default = true
  * @led_mode: system default, default = 0
@@ -108,7 +107,6 @@ struct iwl_mod_params {
 	unsigned int disable_11n;
 	int amsdu_size_8K;
 	bool restart_fw;
-	bool plcp_check;
 	int  wd_disable;
 	bool bt_coex_active;
 	int led_mode;
-- 
cgit v0.10.2


From 44cc429cad4efd1f248b73bf6d692dfa5370dd58 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 18 Jun 2013 06:33:49 +0300
Subject: iwlwifi: remove auto_agg module parameter

If someone wants to disable AMPDU, there is the 11n_disable
module parameter.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/dvm/rs.c b/drivers/net/wireless/iwlwifi/dvm/rs.c
index 94314a8..99d989a 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rs.c
@@ -419,23 +419,18 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv,
 
 	load = rs_tl_get_load(lq_data, tid);
 
-	if ((iwlwifi_mod_params.auto_agg) || (load > IWL_AGG_LOAD_THRESHOLD)) {
-		IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n",
-				sta->addr, tid);
-		ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
-		if (ret == -EAGAIN) {
-			/*
-			 * driver and mac80211 is out of sync
-			 * this might be cause by reloading firmware
-			 * stop the tx ba session here
-			 */
-			IWL_ERR(priv, "Fail start Tx agg on tid: %d\n",
-				tid);
-			ieee80211_stop_tx_ba_session(sta, tid);
-		}
-	} else {
-		IWL_DEBUG_HT(priv, "Aggregation not enabled for tid %d "
-			"because load = %u\n", tid, load);
+	IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n",
+			sta->addr, tid);
+	ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
+	if (ret == -EAGAIN) {
+		/*
+		 * driver and mac80211 is out of sync
+		 * this might be cause by reloading firmware
+		 * stop the tx ba session here
+		 */
+		IWL_ERR(priv, "Fail start Tx agg on tid: %d\n",
+			tid);
+		ieee80211_stop_tx_ba_session(sta, tid);
 	}
 	return ret;
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index b88bdec..59b1e40 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1111,7 +1111,6 @@ struct iwl_mod_params iwlwifi_mod_params = {
 	.restart_fw = true,
 	.bt_coex_active = true,
 	.power_level = IWL_POWER_INDEX_1,
-	.auto_agg = true,
 	.wd_disable = true,
 	/* the rest are 0 by default */
 };
@@ -1260,8 +1259,3 @@ module_param_named(power_level, iwlwifi_mod_params.power_level,
 		int, S_IRUGO);
 MODULE_PARM_DESC(power_level,
 		 "default power save level (range from 1 - 5, default: 1)");
-
-module_param_named(auto_agg, iwlwifi_mod_params.auto_agg,
-		bool, S_IRUGO);
-MODULE_PARM_DESC(auto_agg,
-		 "enable agg w/o check traffic load (default: enable)");
diff --git a/drivers/net/wireless/iwlwifi/iwl-modparams.h b/drivers/net/wireless/iwlwifi/iwl-modparams.h
index 367b6c1..a1f580c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/iwlwifi/iwl-modparams.h
@@ -100,7 +100,6 @@ enum iwl_power_level {
  * @power_level: power level, default = 1
  * @debug_level: levels are IWL_DL_*
  * @ant_coupling: antenna coupling in dB, default = 0
- * @auto_agg: enable agg. without check, default = true
  */
 struct iwl_mod_params {
 	int sw_crypto;
@@ -116,7 +115,6 @@ struct iwl_mod_params {
 	u32 debug_level;
 #endif
 	int ant_coupling;
-	bool auto_agg;
 	char *nvm_file;
 };
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index d6beec7..d87876f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -412,24 +412,18 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_mvm *mvm,
 		return ret;
 	}
 
-	if ((iwlwifi_mod_params.auto_agg) || (load > IWL_AGG_LOAD_THRESHOLD)) {
-		IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n",
-			     sta->addr, tid);
-		ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
-		if (ret == -EAGAIN) {
-			/*
-			 * driver and mac80211 is out of sync
-			 * this might be cause by reloading firmware
-			 * stop the tx ba session here
-			 */
-			IWL_ERR(mvm, "Fail start Tx agg on tid: %d\n",
-				tid);
-			ieee80211_stop_tx_ba_session(sta, tid);
-		}
-	} else {
-		IWL_DEBUG_HT(mvm,
-			     "Aggregation not enabled for tid %d because load = %u\n",
-			     tid, load);
+	IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n",
+		     sta->addr, tid);
+	ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
+	if (ret == -EAGAIN) {
+		/*
+		 * driver and mac80211 is out of sync
+		 * this might be cause by reloading firmware
+		 * stop the tx ba session here
+		 */
+		IWL_ERR(mvm, "Fail start Tx agg on tid: %d\n",
+			tid);
+		ieee80211_stop_tx_ba_session(sta, tid);
 	}
 	return ret;
 }
-- 
cgit v0.10.2


From 49464ae502680e362be519ac024a0f5998faaa7e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 17 Jun 2013 23:13:31 +0200
Subject: iwlwifi: remove testmode

The old nl80211 testmode is no longer useful in iwlwifi,
we're moving towards a new model internally and there's
no open tool to use it, so remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig
index 56c2040..cbaa5c2 100644
--- a/drivers/net/wireless/iwlwifi/Kconfig
+++ b/drivers/net/wireless/iwlwifi/Kconfig
@@ -128,16 +128,6 @@ config IWLWIFI_DEVICE_TRACING
 	  occur.
 endmenu
 
-config IWLWIFI_DEVICE_TESTMODE
-	def_bool y
-	depends on IWLWIFI
-	depends on NL80211_TESTMODE
-	help
-	  This option enables the testmode support for iwlwifi device through
-	  NL80211_TESTMODE. This provide the capabilities of enable user space
-	  validation applications to interacts with the device through the
-	  generic netlink message via NL80211_TESTMODE channel.
-
 config IWLWIFI_P2P
 	def_bool y
 	bool "iwlwifi experimental P2P support"
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile
index f55a758..1fa6442 100644
--- a/drivers/net/wireless/iwlwifi/Makefile
+++ b/drivers/net/wireless/iwlwifi/Makefile
@@ -13,7 +13,6 @@ iwlwifi-$(CONFIG_IWLMVM) += iwl-7000.o
 iwlwifi-objs += $(iwlwifi-m)
 
 iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
-iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TESTMODE) += iwl-test.o
 
 ccflags-y += -D__CHECK_ENDIAN__ -I$(src)
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/Makefile b/drivers/net/wireless/iwlwifi/dvm/Makefile
index 5ff76b2..dce7ab2 100644
--- a/drivers/net/wireless/iwlwifi/dvm/Makefile
+++ b/drivers/net/wireless/iwlwifi/dvm/Makefile
@@ -8,6 +8,5 @@ iwldvm-objs		+= scan.o led.o
 iwldvm-objs		+= rxon.o devices.o
 
 iwldvm-$(CONFIG_IWLWIFI_DEBUGFS) += debugfs.o
-iwldvm-$(CONFIG_IWLWIFI_DEVICE_TESTMODE) += testmode.o
 
 ccflags-y += -D__CHECK_ENDIAN__ -I$(src)/../
diff --git a/drivers/net/wireless/iwlwifi/dvm/agn.h b/drivers/net/wireless/iwlwifi/dvm/agn.h
index de2c951..1835511 100644
--- a/drivers/net/wireless/iwlwifi/dvm/agn.h
+++ b/drivers/net/wireless/iwlwifi/dvm/agn.h
@@ -405,43 +405,6 @@ static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 
 extern int iwl_alive_start(struct iwl_priv *priv);
 
-/* testmode support */
-#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
-
-extern int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data,
-				   int len);
-extern int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw,
-				    struct sk_buff *skb,
-				    struct netlink_callback *cb,
-				    void *data, int len);
-extern void iwl_testmode_init(struct iwl_priv *priv);
-extern void iwl_testmode_free(struct iwl_priv *priv);
-
-#else
-
-static inline
-int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
-{
-	return -ENOSYS;
-}
-
-static inline
-int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
-		      struct netlink_callback *cb,
-		      void *data, int len)
-{
-	return -ENOSYS;
-}
-
-static inline void iwl_testmode_init(struct iwl_priv *priv)
-{
-}
-
-static inline void iwl_testmode_free(struct iwl_priv *priv)
-{
-}
-#endif
-
 #ifdef CONFIG_IWLWIFI_DEBUG
 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 			     enum iwl_rxon_context_id ctxid);
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index f1b8df1..310a678 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -52,8 +52,6 @@
 #include "rs.h"
 #include "tt.h"
 
-#include "iwl-test.h"
-
 /* CT-KILL constants */
 #define CT_KILL_THRESHOLD_LEGACY   110 /* in Celsius */
 #define CT_KILL_THRESHOLD	   114 /* in Celsius */
@@ -691,10 +689,6 @@ struct iwl_priv {
 	struct iwl_spectrum_notification measure_report;
 	u8 measurement_status;
 
-#define IWL_OWNERSHIP_DRIVER	0
-#define IWL_OWNERSHIP_TM	1
-	u8 ucode_owner;
-
 	/* ucode beacon time */
 	u32 ucode_beacon_time;
 	int missed_beacon_threshold;
@@ -889,7 +883,7 @@ struct iwl_priv {
 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 
 	struct iwl_nvm_data *nvm_data;
-	/* eeprom blob for debugfs/testmode */
+	/* eeprom blob for debugfs */
 	u8 *eeprom_blob;
 	size_t eeprom_blob_size;
 
@@ -905,11 +899,6 @@ struct iwl_priv {
 	unsigned long blink_on, blink_off;
 	bool led_registered;
 
-#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
-	struct iwl_test tst;
-	u32 tm_fixed_rate;
-#endif
-
 	/* WoWLAN GTK rekey data */
 	u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
 	__le64 replay_ctr;
diff --git a/drivers/net/wireless/iwlwifi/dvm/lib.c b/drivers/net/wireless/iwlwifi/dvm/lib.c
index 9879550..3d5bdc4 100644
--- a/drivers/net/wireless/iwlwifi/dvm/lib.c
+++ b/drivers/net/wireless/iwlwifi/dvm/lib.c
@@ -1288,12 +1288,6 @@ int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 	if (!(cmd->flags & CMD_ASYNC))
 		lockdep_assert_held(&priv->mutex);
 
-	if (priv->ucode_owner == IWL_OWNERSHIP_TM &&
-	    !(cmd->flags & CMD_ON_DEMAND)) {
-		IWL_DEBUG_HC(priv, "tm own the uCode, no regular hcmd send\n");
-		return -EIO;
-	}
-
 	return iwl_trans_send_cmd(priv->trans, cmd);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index c0039a9..593aaf4 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -1765,8 +1765,6 @@ struct ieee80211_ops iwlagn_hw_ops = {
 	.remain_on_channel = iwlagn_mac_remain_on_channel,
 	.cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel,
 	.rssi_callback = iwlagn_mac_rssi_callback,
-	CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd)
-	CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump)
 	.set_tim = iwlagn_mac_set_tim,
 };
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 71db089..3952ddf 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -1105,8 +1105,6 @@ static int iwl_init_drv(struct iwl_priv *priv)
 	priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
 	priv->agg_tids_count = 0;
 
-	priv->ucode_owner = IWL_OWNERSHIP_DRIVER;
-
 	priv->rx_statistics_jiffies = jiffies;
 
 	/* Choose which receivers/antennas to use */
@@ -1172,12 +1170,6 @@ static void iwl_option_config(struct iwl_priv *priv)
 	IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING disabled\n");
 #endif
 
-#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
-	IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TESTMODE enabled\n");
-#else
-	IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TESTMODE disabled\n");
-#endif
-
 #ifdef CONFIG_IWLWIFI_P2P
 	IWL_INFO(priv, "CONFIG_IWLWIFI_P2P enabled\n");
 #else
@@ -1451,7 +1443,6 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 	 ********************/
 	iwl_setup_deferred_work(priv);
 	iwl_setup_rx_handlers(priv);
-	iwl_testmode_init(priv);
 
 	iwl_power_initialize(priv);
 	iwl_tt_initialize(priv);
@@ -1488,7 +1479,6 @@ out_mac80211_unregister:
 	iwlagn_mac_unregister(priv);
 out_destroy_workqueue:
 	iwl_tt_exit(priv);
-	iwl_testmode_free(priv);
 	iwl_cancel_deferred_work(priv);
 	destroy_workqueue(priv->workqueue);
 	priv->workqueue = NULL;
@@ -1510,7 +1500,6 @@ static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
 
 	IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
 
-	iwl_testmode_free(priv);
 	iwlagn_mac_unregister(priv);
 
 	iwl_tt_exit(priv);
diff --git a/drivers/net/wireless/iwlwifi/dvm/rs.c b/drivers/net/wireless/iwlwifi/dvm/rs.c
index 99d989a..18e746b 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rs.c
@@ -351,12 +351,6 @@ static void rs_program_fix_rate(struct iwl_priv *priv,
 	lq_sta->active_mimo2_rate  = 0x1FD0;	/* 6 - 60 MBits, no 9, no CCK */
 	lq_sta->active_mimo3_rate  = 0x1FD0;	/* 6 - 60 MBits, no 9, no CCK */
 
-#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
-	/* testmode has higher priority to overwirte the fixed rate */
-	if (priv->tm_fixed_rate)
-		lq_sta->dbg_fixed_rate = priv->tm_fixed_rate;
-#endif
-
 	IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
 		lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
 
@@ -1078,11 +1072,6 @@ done:
 	if (sta && sta->supp_rates[sband->band])
 		rs_rate_scale_perform(priv, skb, sta, lq_sta);
 
-#if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_IWLWIFI_DEVICE_TESTMODE)
-	if ((priv->tm_fixed_rate) &&
-	    (priv->tm_fixed_rate != lq_sta->dbg_fixed_rate))
-		rs_program_fix_rate(priv, lq_sta);
-#endif
 	if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist)
 		rs_bt_update_lq(priv, ctx, lq_sta);
 }
@@ -2908,9 +2897,6 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i
 	if (sband->band == IEEE80211_BAND_5GHZ)
 		lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
 	lq_sta->is_agg = 0;
-#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
-	priv->tm_fixed_rate = 0;
-#endif
 #ifdef CONFIG_MAC80211_DEBUGFS
 	lq_sta->dbg_fixed_rate = 0;
 #endif
diff --git a/drivers/net/wireless/iwlwifi/dvm/rx.c b/drivers/net/wireless/iwlwifi/dvm/rx.c
index 5d31a1a..d71776d 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rx.c
@@ -1119,32 +1119,17 @@ int iwl_rx_dispatch(struct iwl_op_mode *op_mode, struct iwl_rx_cmd_buffer *rxb,
 	 */
 	iwl_notification_wait_notify(&priv->notif_wait, pkt);
 
-#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
-	/*
-	 * RX data may be forwarded to userspace in one
-	 * of two cases: the user owns the fw through testmode or when
-	 * the user requested to monitor the rx w/o affecting the regular flow.
-	 * In these cases the iwl_test object will handle forwarding the rx
-	 * data to user space.
-	 * Note that if the ownership flag != IWL_OWNERSHIP_TM the flow
-	 * continues.
-	 */
-	iwl_test_rx(&priv->tst, rxb);
-#endif
-
-	if (priv->ucode_owner != IWL_OWNERSHIP_TM) {
-		/* Based on type of command response or notification,
-		 *   handle those that need handling via function in
-		 *   rx_handlers table.  See iwl_setup_rx_handlers() */
-		if (priv->rx_handlers[pkt->hdr.cmd]) {
-			priv->rx_handlers_stats[pkt->hdr.cmd]++;
-			err = priv->rx_handlers[pkt->hdr.cmd] (priv, rxb, cmd);
-		} else {
-			/* No handling needed */
-			IWL_DEBUG_RX(priv, "No handler needed for %s, 0x%02x\n",
-				     iwl_dvm_get_cmd_string(pkt->hdr.cmd),
-				     pkt->hdr.cmd);
-		}
+	/* Based on type of command response or notification,
+	 *   handle those that need handling via function in
+	 *   rx_handlers table.  See iwl_setup_rx_handlers() */
+	if (priv->rx_handlers[pkt->hdr.cmd]) {
+		priv->rx_handlers_stats[pkt->hdr.cmd]++;
+		err = priv->rx_handlers[pkt->hdr.cmd] (priv, rxb, cmd);
+	} else {
+		/* No handling needed */
+		IWL_DEBUG_RX(priv, "No handler needed for %s, 0x%02x\n",
+			     iwl_dvm_get_cmd_string(pkt->hdr.cmd),
+			     pkt->hdr.cmd);
 	}
 	return err;
 }
diff --git a/drivers/net/wireless/iwlwifi/dvm/testmode.c b/drivers/net/wireless/iwlwifi/dvm/testmode.c
deleted file mode 100644
index b89b9d9..0000000
--- a/drivers/net/wireless/iwlwifi/dvm/testmode.c
+++ /dev/null
@@ -1,471 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license.  When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
- *
- * Contact Information:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *  * Neither the name Intel Corporation nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <net/net_namespace.h>
-#include <linux/netdevice.h>
-#include <net/cfg80211.h>
-#include <net/mac80211.h>
-#include <net/netlink.h>
-
-#include "iwl-debug.h"
-#include "iwl-trans.h"
-#include "dev.h"
-#include "agn.h"
-#include "iwl-test.h"
-#include "iwl-testmode.h"
-
-static int iwl_testmode_send_cmd(struct iwl_op_mode *op_mode,
-				 struct iwl_host_cmd *cmd)
-{
-	struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
-	return iwl_dvm_send_cmd(priv, cmd);
-}
-
-static bool iwl_testmode_valid_hw_addr(u32 addr)
-{
-	if (iwlagn_hw_valid_rtc_data_addr(addr))
-		return true;
-
-	if (IWLAGN_RTC_INST_LOWER_BOUND <= addr &&
-	    addr < IWLAGN_RTC_INST_UPPER_BOUND)
-		return true;
-
-	return false;
-}
-
-static u32 iwl_testmode_get_fw_ver(struct iwl_op_mode *op_mode)
-{
-	struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
-	return priv->fw->ucode_ver;
-}
-
-static struct sk_buff*
-iwl_testmode_alloc_reply(struct iwl_op_mode *op_mode, int len)
-{
-	struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
-	return cfg80211_testmode_alloc_reply_skb(priv->hw->wiphy, len);
-}
-
-static int iwl_testmode_reply(struct iwl_op_mode *op_mode, struct sk_buff *skb)
-{
-	return cfg80211_testmode_reply(skb);
-}
-
-static struct sk_buff *iwl_testmode_alloc_event(struct iwl_op_mode *op_mode,
-						int len)
-{
-	struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
-	return cfg80211_testmode_alloc_event_skb(priv->hw->wiphy, len,
-						 GFP_ATOMIC);
-}
-
-static void iwl_testmode_event(struct iwl_op_mode *op_mode, struct sk_buff *skb)
-{
-	return cfg80211_testmode_event(skb, GFP_ATOMIC);
-}
-
-static struct iwl_test_ops tst_ops = {
-	.send_cmd = iwl_testmode_send_cmd,
-	.valid_hw_addr = iwl_testmode_valid_hw_addr,
-	.get_fw_ver = iwl_testmode_get_fw_ver,
-	.alloc_reply = iwl_testmode_alloc_reply,
-	.reply = iwl_testmode_reply,
-	.alloc_event = iwl_testmode_alloc_event,
-	.event = iwl_testmode_event,
-};
-
-void iwl_testmode_init(struct iwl_priv *priv)
-{
-	iwl_test_init(&priv->tst, priv->trans, &tst_ops);
-}
-
-void iwl_testmode_free(struct iwl_priv *priv)
-{
-	iwl_test_free(&priv->tst);
-}
-
-static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv)
-{
-	struct iwl_notification_wait calib_wait;
-	static const u8 calib_complete[] = {
-		CALIBRATION_COMPLETE_NOTIFICATION
-	};
-	int ret;
-
-	iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
-				   calib_complete, ARRAY_SIZE(calib_complete),
-				   NULL, NULL);
-	ret = iwl_init_alive_start(priv);
-	if (ret) {
-		IWL_ERR(priv, "Fail init calibration: %d\n", ret);
-		goto cfg_init_calib_error;
-	}
-
-	ret = iwl_wait_notification(&priv->notif_wait, &calib_wait, 2 * HZ);
-	if (ret)
-		IWL_ERR(priv, "Error detecting"
-			" CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret);
-	return ret;
-
-cfg_init_calib_error:
-	iwl_remove_notification(&priv->notif_wait, &calib_wait);
-	return ret;
-}
-
-/*
- * This function handles the user application commands for driver.
- *
- * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
- * handlers respectively.
- *
- * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
- * value of the actual command execution is replied to the user application.
- *
- * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP
- * is used for carry the message while IWL_TM_ATTR_COMMAND must set to
- * IWL_TM_CMD_DEV2APP_SYNC_RSP.
- *
- * @hw: ieee80211_hw object that represents the device
- * @tb: gnl message fields from the user space
- */
-static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
-{
-	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
-	struct iwl_trans *trans = priv->trans;
-	struct sk_buff *skb;
-	unsigned char *rsp_data_ptr = NULL;
-	int status = 0, rsp_data_len = 0;
-	u32 inst_size = 0, data_size = 0;
-	const struct fw_img *img;
-
-	switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
-	case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
-		rsp_data_ptr = (unsigned char *)priv->cfg->name;
-		rsp_data_len = strlen(priv->cfg->name);
-		skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
-							rsp_data_len + 20);
-		if (!skb) {
-			IWL_ERR(priv, "Memory allocation fail\n");
-			return -ENOMEM;
-		}
-		if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND,
-				IWL_TM_CMD_DEV2APP_SYNC_RSP) ||
-		    nla_put(skb, IWL_TM_ATTR_SYNC_RSP,
-			    rsp_data_len, rsp_data_ptr))
-			goto nla_put_failure;
-		status = cfg80211_testmode_reply(skb);
-		if (status < 0)
-			IWL_ERR(priv, "Error sending msg : %d\n", status);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
-		status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT);
-		if (status)
-			IWL_ERR(priv, "Error loading init ucode: %d\n", status);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
-		iwl_testmode_cfg_init_calib(priv);
-		priv->ucode_loaded = false;
-		iwl_trans_stop_device(trans);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
-		status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
-		if (status) {
-			IWL_ERR(priv,
-				"Error loading runtime ucode: %d\n", status);
-			break;
-		}
-		status = iwl_alive_start(priv);
-		if (status)
-			IWL_ERR(priv,
-				"Error starting the device: %d\n", status);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
-		iwl_scan_cancel_timeout(priv, 200);
-		priv->ucode_loaded = false;
-		iwl_trans_stop_device(trans);
-		status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN);
-		if (status) {
-			IWL_ERR(priv,
-				"Error loading WOWLAN ucode: %d\n", status);
-			break;
-		}
-		status = iwl_alive_start(priv);
-		if (status)
-			IWL_ERR(priv,
-				"Error starting the device: %d\n", status);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_GET_EEPROM:
-		if (priv->eeprom_blob) {
-			skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
-				priv->eeprom_blob_size + 20);
-			if (!skb) {
-				IWL_ERR(priv, "Memory allocation fail\n");
-				return -ENOMEM;
-			}
-			if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND,
-					IWL_TM_CMD_DEV2APP_EEPROM_RSP) ||
-			    nla_put(skb, IWL_TM_ATTR_EEPROM,
-				    priv->eeprom_blob_size,
-				    priv->eeprom_blob))
-				goto nla_put_failure;
-			status = cfg80211_testmode_reply(skb);
-			if (status < 0)
-				IWL_ERR(priv, "Error sending msg : %d\n",
-					status);
-		} else
-			return -ENODATA;
-		break;
-
-	case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
-		if (!tb[IWL_TM_ATTR_FIXRATE]) {
-			IWL_ERR(priv, "Missing fixrate setting\n");
-			return -ENOMSG;
-		}
-		priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_GET_FW_INFO:
-		skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20 + 8);
-		if (!skb) {
-			IWL_ERR(priv, "Memory allocation fail\n");
-			return -ENOMEM;
-		}
-		if (!priv->ucode_loaded) {
-			IWL_ERR(priv, "No uCode has not been loaded\n");
-			return -EINVAL;
-		} else {
-			img = &priv->fw->img[priv->cur_ucode];
-			inst_size = img->sec[IWL_UCODE_SECTION_INST].len;
-			data_size = img->sec[IWL_UCODE_SECTION_DATA].len;
-		}
-		if (nla_put_u32(skb, IWL_TM_ATTR_FW_TYPE, priv->cur_ucode) ||
-		    nla_put_u32(skb, IWL_TM_ATTR_FW_INST_SIZE, inst_size) ||
-		    nla_put_u32(skb, IWL_TM_ATTR_FW_DATA_SIZE, data_size))
-			goto nla_put_failure;
-		status = cfg80211_testmode_reply(skb);
-		if (status < 0)
-			IWL_ERR(priv, "Error sending msg : %d\n", status);
-		break;
-
-	default:
-		IWL_ERR(priv, "Unknown testmode driver command ID\n");
-		return -ENOSYS;
-	}
-	return status;
-
-nla_put_failure:
-	kfree_skb(skb);
-	return -EMSGSIZE;
-}
-
-/*
- * This function handles the user application switch ucode ownership.
- *
- * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and
- * decide who the current owner of the uCode
- *
- * If the current owner is OWNERSHIP_TM, then the only host command
- * can deliver to uCode is from testmode, all the other host commands
- * will dropped.
- *
- * default driver is the owner of uCode in normal operational mode
- *
- * @hw: ieee80211_hw object that represents the device
- * @tb: gnl message fields from the user space
- */
-static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb)
-{
-	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
-	u8 owner;
-
-	if (!tb[IWL_TM_ATTR_UCODE_OWNER]) {
-		IWL_ERR(priv, "Missing ucode owner\n");
-		return -ENOMSG;
-	}
-
-	owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]);
-	if (owner == IWL_OWNERSHIP_DRIVER) {
-		priv->ucode_owner = owner;
-		iwl_test_enable_notifications(&priv->tst, false);
-	} else if (owner == IWL_OWNERSHIP_TM) {
-		priv->ucode_owner = owner;
-		iwl_test_enable_notifications(&priv->tst, true);
-	} else {
-		IWL_ERR(priv, "Invalid owner\n");
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/* The testmode gnl message handler that takes the gnl message from the
- * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then
- * invoke the corresponding handlers.
- *
- * This function is invoked when there is user space application sending
- * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated
- * by nl80211.
- *
- * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before
- * dispatching it to the corresponding handler.
- *
- * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application;
- * -ENOSYS is replied to the user application if the command is unknown;
- * Otherwise, the command is dispatched to the respective handler.
- *
- * @hw: ieee80211_hw object that represents the device
- * @data: pointer to user space message
- * @len: length in byte of @data
- */
-int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
-{
-	struct nlattr *tb[IWL_TM_ATTR_MAX];
-	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
-	int result;
-
-	result = iwl_test_parse(&priv->tst, tb, data, len);
-	if (result)
-		return result;
-
-	/* in case multiple accesses to the device happens */
-	mutex_lock(&priv->mutex);
-	switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
-	case IWL_TM_CMD_APP2DEV_UCODE:
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
-	case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
-	case IWL_TM_CMD_APP2DEV_END_TRACE:
-	case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ:
-	case IWL_TM_CMD_APP2DEV_NOTIFICATIONS:
-	case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
-	case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
-	case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE:
-		result = iwl_test_handle_cmd(&priv->tst, tb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
-	case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
-	case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
-	case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
-	case IWL_TM_CMD_APP2DEV_GET_EEPROM:
-	case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
-	case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
-	case IWL_TM_CMD_APP2DEV_GET_FW_INFO:
-		IWL_DEBUG_INFO(priv, "testmode cmd to driver\n");
-		result = iwl_testmode_driver(hw, tb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_OWNERSHIP:
-		IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n");
-		result = iwl_testmode_ownership(hw, tb);
-		break;
-
-	default:
-		IWL_ERR(priv, "Unknown testmode command\n");
-		result = -ENOSYS;
-		break;
-	}
-	mutex_unlock(&priv->mutex);
-
-	if (result)
-		IWL_ERR(priv, "Test cmd failed result=%d\n", result);
-	return result;
-}
-
-int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
-		      struct netlink_callback *cb,
-		      void *data, int len)
-{
-	struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
-	int result;
-	u32 cmd;
-
-	if (cb->args[3]) {
-		/* offset by 1 since commands start at 0 */
-		cmd = cb->args[3] - 1;
-	} else {
-		struct nlattr *tb[IWL_TM_ATTR_MAX];
-
-		result = iwl_test_parse(&priv->tst, tb, data, len);
-		if (result)
-			return result;
-
-		cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]);
-		cb->args[3] = cmd + 1;
-	}
-
-	/* in case multiple accesses to the device happens */
-	mutex_lock(&priv->mutex);
-	result = iwl_test_dump(&priv->tst, cmd, skb, cb);
-	mutex_unlock(&priv->mutex);
-	return result;
-}
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index 353a053..5ee983f 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -162,18 +162,6 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv,
 	if (ieee80211_is_data(fc)) {
 		tx_cmd->initial_rate_index = 0;
 		tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
-#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
-		if (priv->tm_fixed_rate) {
-			/*
-			 * rate overwrite by testmode
-			 * we not only send lq command to change rate
-			 * we also re-enforce per data pkt base.
-			 */
-			tx_cmd->tx_flags &= ~TX_CMD_FLG_STA_RATE_MSK;
-			memcpy(&tx_cmd->rate_n_flags, &priv->tm_fixed_rate,
-			       sizeof(tx_cmd->rate_n_flags));
-		}
-#endif
 		return;
 	} else if (ieee80211_is_back_req(fc))
 		tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
diff --git a/drivers/net/wireless/iwlwifi/iwl-test.c b/drivers/net/wireless/iwlwifi/iwl-test.c
deleted file mode 100644
index 5cfd55b..0000000
--- a/drivers/net/wireless/iwlwifi/iwl-test.c
+++ /dev/null
@@ -1,852 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license.  When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
- *
- * Contact Information:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *  * Neither the name Intel Corporation nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-
-#include <linux/export.h>
-#include <net/netlink.h>
-
-#include "iwl-drv.h"
-#include "iwl-io.h"
-#include "iwl-fh.h"
-#include "iwl-prph.h"
-#include "iwl-trans.h"
-#include "iwl-test.h"
-#include "iwl-csr.h"
-#include "iwl-testmode.h"
-
-/*
- * Periphery registers absolute lower bound. This is used in order to
- * differentiate registery access through HBUS_TARG_PRPH_* and
- * HBUS_TARG_MEM_* accesses.
- */
-#define IWL_ABS_PRPH_START (0xA00000)
-
-/*
- * The TLVs used in the gnl message policy between the kernel module and
- * user space application. iwl_testmode_gnl_msg_policy is to be carried
- * through the NL80211_CMD_TESTMODE channel regulated by nl80211.
- * See iwl-testmode.h
- */
-static
-struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = {
-	[IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, },
-
-	[IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, },
-	[IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, },
-
-	[IWL_TM_ATTR_REG_OFFSET] = { .type = NLA_U32, },
-	[IWL_TM_ATTR_REG_VALUE8] = { .type = NLA_U8, },
-	[IWL_TM_ATTR_REG_VALUE32] = { .type = NLA_U32, },
-
-	[IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, },
-	[IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, },
-
-	[IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, },
-
-	[IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, },
-	[IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, },
-	[IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, },
-
-	[IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, },
-
-	[IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, },
-
-	[IWL_TM_ATTR_MEM_ADDR] = { .type = NLA_U32, },
-	[IWL_TM_ATTR_BUFFER_SIZE] = { .type = NLA_U32, },
-	[IWL_TM_ATTR_BUFFER_DUMP] = { .type = NLA_UNSPEC, },
-
-	[IWL_TM_ATTR_FW_VERSION] = { .type = NLA_U32, },
-	[IWL_TM_ATTR_DEVICE_ID] = { .type = NLA_U32, },
-	[IWL_TM_ATTR_FW_TYPE] = { .type = NLA_U32, },
-	[IWL_TM_ATTR_FW_INST_SIZE] = { .type = NLA_U32, },
-	[IWL_TM_ATTR_FW_DATA_SIZE] = { .type = NLA_U32, },
-
-	[IWL_TM_ATTR_ENABLE_NOTIFICATION] = {.type = NLA_FLAG, },
-};
-
-static inline void iwl_test_trace_clear(struct iwl_test *tst)
-{
-	memset(&tst->trace, 0, sizeof(struct iwl_test_trace));
-}
-
-static void iwl_test_trace_stop(struct iwl_test *tst)
-{
-	if (!tst->trace.enabled)
-		return;
-
-	if (tst->trace.cpu_addr && tst->trace.dma_addr)
-		dma_free_coherent(tst->trans->dev,
-				  tst->trace.tsize,
-				  tst->trace.cpu_addr,
-				  tst->trace.dma_addr);
-
-	iwl_test_trace_clear(tst);
-}
-
-static inline void iwl_test_mem_clear(struct iwl_test *tst)
-{
-	memset(&tst->mem, 0, sizeof(struct iwl_test_mem));
-}
-
-static inline void iwl_test_mem_stop(struct iwl_test *tst)
-{
-	if (!tst->mem.in_read)
-		return;
-
-	iwl_test_mem_clear(tst);
-}
-
-/*
- * Initializes the test object
- * During the lifetime of the test object it is assumed that the transport is
- * started. The test object should be stopped before the transport is stopped.
- */
-void iwl_test_init(struct iwl_test *tst, struct iwl_trans *trans,
-		   struct iwl_test_ops *ops)
-{
-	tst->trans = trans;
-	tst->ops = ops;
-
-	iwl_test_trace_clear(tst);
-	iwl_test_mem_clear(tst);
-}
-EXPORT_SYMBOL_GPL(iwl_test_init);
-
-/*
- * Stop the test object
- */
-void iwl_test_free(struct iwl_test *tst)
-{
-	iwl_test_mem_stop(tst);
-	iwl_test_trace_stop(tst);
-}
-EXPORT_SYMBOL_GPL(iwl_test_free);
-
-static inline int iwl_test_send_cmd(struct iwl_test *tst,
-				    struct iwl_host_cmd *cmd)
-{
-	return tst->ops->send_cmd(tst->trans->op_mode, cmd);
-}
-
-static inline bool iwl_test_valid_hw_addr(struct iwl_test *tst, u32 addr)
-{
-	return tst->ops->valid_hw_addr(addr);
-}
-
-static inline u32 iwl_test_fw_ver(struct iwl_test *tst)
-{
-	return tst->ops->get_fw_ver(tst->trans->op_mode);
-}
-
-static inline struct sk_buff*
-iwl_test_alloc_reply(struct iwl_test *tst, int len)
-{
-	return tst->ops->alloc_reply(tst->trans->op_mode, len);
-}
-
-static inline int iwl_test_reply(struct iwl_test *tst, struct sk_buff *skb)
-{
-	return tst->ops->reply(tst->trans->op_mode, skb);
-}
-
-static inline struct sk_buff*
-iwl_test_alloc_event(struct iwl_test *tst, int len)
-{
-	return tst->ops->alloc_event(tst->trans->op_mode, len);
-}
-
-static inline void
-iwl_test_event(struct iwl_test *tst, struct sk_buff *skb)
-{
-	return tst->ops->event(tst->trans->op_mode, skb);
-}
-
-/*
- * This function handles the user application commands to the fw. The fw
- * commands are sent in a synchronuous manner. In case that the user requested
- * to get commands response, it is send to the user.
- */
-static int iwl_test_fw_cmd(struct iwl_test *tst, struct nlattr **tb)
-{
-	struct iwl_host_cmd cmd;
-	struct iwl_rx_packet *pkt;
-	struct sk_buff *skb;
-	void *reply_buf;
-	u32 reply_len;
-	int ret;
-	bool cmd_want_skb;
-
-	memset(&cmd, 0, sizeof(struct iwl_host_cmd));
-
-	if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] ||
-	    !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) {
-		IWL_ERR(tst->trans, "Missing fw command mandatory fields\n");
-		return -ENOMSG;
-	}
-
-	cmd.flags = CMD_ON_DEMAND | CMD_SYNC;
-	cmd_want_skb = nla_get_flag(tb[IWL_TM_ATTR_UCODE_CMD_SKB]);
-	if (cmd_want_skb)
-		cmd.flags |= CMD_WANT_SKB;
-
-	cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]);
-	cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
-	cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
-	cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
-	IWL_DEBUG_INFO(tst->trans, "test fw cmd=0x%x, flags 0x%x, len %d\n",
-		       cmd.id, cmd.flags, cmd.len[0]);
-
-	ret = iwl_test_send_cmd(tst, &cmd);
-	if (ret) {
-		IWL_ERR(tst->trans, "Failed to send hcmd\n");
-		return ret;
-	}
-	if (!cmd_want_skb)
-		return ret;
-
-	/* Handling return of SKB to the user */
-	pkt = cmd.resp_pkt;
-	if (!pkt) {
-		IWL_ERR(tst->trans, "HCMD received a null response packet\n");
-		return ret;
-	}
-
-	reply_len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
-	skb = iwl_test_alloc_reply(tst, reply_len + 20);
-	reply_buf = kmemdup(&pkt->hdr, reply_len, GFP_KERNEL);
-	if (!skb || !reply_buf) {
-		kfree_skb(skb);
-		kfree(reply_buf);
-		return -ENOMEM;
-	}
-
-	/* The reply is in a page, that we cannot send to user space. */
-	iwl_free_resp(&cmd);
-
-	if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND,
-			IWL_TM_CMD_DEV2APP_UCODE_RX_PKT) ||
-	    nla_put(skb, IWL_TM_ATTR_UCODE_RX_PKT, reply_len, reply_buf))
-		goto nla_put_failure;
-	return iwl_test_reply(tst, skb);
-
-nla_put_failure:
-	IWL_DEBUG_INFO(tst->trans, "Failed creating NL attributes\n");
-	kfree(reply_buf);
-	kfree_skb(skb);
-	return -ENOMSG;
-}
-
-/*
- * Handles the user application commands for register access.
- */
-static int iwl_test_reg(struct iwl_test *tst, struct nlattr **tb)
-{
-	u32 ofs, val32, cmd;
-	u8 val8;
-	struct sk_buff *skb;
-	int status = 0;
-	struct iwl_trans *trans = tst->trans;
-
-	if (!tb[IWL_TM_ATTR_REG_OFFSET]) {
-		IWL_ERR(trans, "Missing reg offset\n");
-		return -ENOMSG;
-	}
-
-	ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]);
-	IWL_DEBUG_INFO(trans, "test reg access cmd offset=0x%x\n", ofs);
-
-	cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]);
-
-	/*
-	 * Allow access only to FH/CSR/HBUS in direct mode.
-	 * Since we don't have the upper bounds for the CSR and HBUS segments,
-	 * we will use only the upper bound of FH for sanity check.
-	 */
-	if (ofs >= FH_MEM_UPPER_BOUND) {
-		IWL_ERR(trans, "offset out of segment (0x0 - 0x%x)\n",
-			FH_MEM_UPPER_BOUND);
-		return -EINVAL;
-	}
-
-	switch (cmd) {
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
-		val32 = iwl_read_direct32(tst->trans, ofs);
-		IWL_DEBUG_INFO(trans, "32 value to read 0x%x\n", val32);
-
-		skb = iwl_test_alloc_reply(tst, 20);
-		if (!skb) {
-			IWL_ERR(trans, "Memory allocation fail\n");
-			return -ENOMEM;
-		}
-		if (nla_put_u32(skb, IWL_TM_ATTR_REG_VALUE32, val32))
-			goto nla_put_failure;
-		status = iwl_test_reply(tst, skb);
-		if (status < 0)
-			IWL_ERR(trans, "Error sending msg : %d\n", status);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
-		if (!tb[IWL_TM_ATTR_REG_VALUE32]) {
-			IWL_ERR(trans, "Missing value to write\n");
-			return -ENOMSG;
-		} else {
-			val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]);
-			IWL_DEBUG_INFO(trans, "32b write val=0x%x\n", val32);
-			iwl_write_direct32(tst->trans, ofs, val32);
-		}
-		break;
-
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
-		if (!tb[IWL_TM_ATTR_REG_VALUE8]) {
-			IWL_ERR(trans, "Missing value to write\n");
-			return -ENOMSG;
-		} else {
-			val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]);
-			IWL_DEBUG_INFO(trans, "8b write val=0x%x\n", val8);
-			iwl_write8(tst->trans, ofs, val8);
-		}
-		break;
-
-	default:
-		IWL_ERR(trans, "Unknown test register cmd ID\n");
-		return -ENOMSG;
-	}
-
-	return status;
-
-nla_put_failure:
-	kfree_skb(skb);
-	return -EMSGSIZE;
-}
-
-/*
- * Handles the request to start FW tracing. Allocates of the trace buffer
- * and sends a reply to user space with the address of the allocated buffer.
- */
-static int iwl_test_trace_begin(struct iwl_test *tst, struct nlattr **tb)
-{
-	struct sk_buff *skb;
-	int status = 0;
-
-	if (tst->trace.enabled)
-		return -EBUSY;
-
-	if (!tb[IWL_TM_ATTR_TRACE_SIZE])
-		tst->trace.size = TRACE_BUFF_SIZE_DEF;
-	else
-		tst->trace.size =
-			nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]);
-
-	if (!tst->trace.size)
-		return -EINVAL;
-
-	if (tst->trace.size < TRACE_BUFF_SIZE_MIN ||
-	    tst->trace.size > TRACE_BUFF_SIZE_MAX)
-		return -EINVAL;
-
-	tst->trace.tsize = tst->trace.size + TRACE_BUFF_PADD;
-	tst->trace.cpu_addr = dma_alloc_coherent(tst->trans->dev,
-						 tst->trace.tsize,
-						 &tst->trace.dma_addr,
-						 GFP_KERNEL);
-	if (!tst->trace.cpu_addr)
-		return -ENOMEM;
-
-	tst->trace.enabled = true;
-	tst->trace.trace_addr = (u8 *)PTR_ALIGN(tst->trace.cpu_addr, 0x100);
-
-	memset(tst->trace.trace_addr, 0x03B, tst->trace.size);
-
-	skb = iwl_test_alloc_reply(tst, sizeof(tst->trace.dma_addr) + 20);
-	if (!skb) {
-		IWL_ERR(tst->trans, "Memory allocation fail\n");
-		iwl_test_trace_stop(tst);
-		return -ENOMEM;
-	}
-
-	if (nla_put(skb, IWL_TM_ATTR_TRACE_ADDR,
-		    sizeof(tst->trace.dma_addr),
-		    (u64 *)&tst->trace.dma_addr))
-		goto nla_put_failure;
-
-	status = iwl_test_reply(tst, skb);
-	if (status < 0)
-		IWL_ERR(tst->trans, "Error sending msg : %d\n", status);
-
-	tst->trace.nchunks = DIV_ROUND_UP(tst->trace.size,
-					  DUMP_CHUNK_SIZE);
-
-	return status;
-
-nla_put_failure:
-	kfree_skb(skb);
-	if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) ==
-	    IWL_TM_CMD_APP2DEV_BEGIN_TRACE)
-		iwl_test_trace_stop(tst);
-	return -EMSGSIZE;
-}
-
-/*
- * Handles indirect read from the periphery or the SRAM. The read is performed
- * to a temporary buffer. The user space application should later issue a dump
- */
-static int iwl_test_indirect_read(struct iwl_test *tst, u32 addr, u32 size)
-{
-	struct iwl_trans *trans = tst->trans;
-	unsigned long flags;
-	int i;
-
-	if (size & 0x3)
-		return -EINVAL;
-
-	tst->mem.size = size;
-	tst->mem.addr = kmalloc(tst->mem.size, GFP_KERNEL);
-	if (tst->mem.addr == NULL)
-		return -ENOMEM;
-
-	/* Hard-coded periphery absolute address */
-	if (IWL_ABS_PRPH_START <= addr &&
-	    addr < IWL_ABS_PRPH_START + PRPH_END) {
-			if (!iwl_trans_grab_nic_access(trans, false, &flags)) {
-				return -EIO;
-			}
-			iwl_write32(trans, HBUS_TARG_PRPH_RADDR,
-				    addr | (3 << 24));
-			for (i = 0; i < size; i += 4)
-				*(u32 *)(tst->mem.addr + i) =
-					iwl_read32(trans, HBUS_TARG_PRPH_RDAT);
-			iwl_trans_release_nic_access(trans, &flags);
-	} else { /* target memory (SRAM) */
-		iwl_trans_read_mem(trans, addr, tst->mem.addr,
-				   tst->mem.size / 4);
-	}
-
-	tst->mem.nchunks =
-		DIV_ROUND_UP(tst->mem.size, DUMP_CHUNK_SIZE);
-	tst->mem.in_read = true;
-	return 0;
-
-}
-
-/*
- * Handles indirect write to the periphery or SRAM. The  is performed to a
- * temporary buffer.
- */
-static int iwl_test_indirect_write(struct iwl_test *tst, u32 addr,
-	u32 size, unsigned char *buf)
-{
-	struct iwl_trans *trans = tst->trans;
-	u32 val, i;
-	unsigned long flags;
-
-	if (IWL_ABS_PRPH_START <= addr &&
-	    addr < IWL_ABS_PRPH_START + PRPH_END) {
-		/* Periphery writes can be 1-3 bytes long, or DWORDs */
-		if (size < 4) {
-			memcpy(&val, buf, size);
-			if (!iwl_trans_grab_nic_access(trans, false, &flags))
-					return -EIO;
-			iwl_write32(trans, HBUS_TARG_PRPH_WADDR,
-				    (addr & 0x0000FFFF) |
-				    ((size - 1) << 24));
-			iwl_write32(trans, HBUS_TARG_PRPH_WDAT, val);
-			iwl_trans_release_nic_access(trans, &flags);
-		} else {
-			if (size % 4)
-				return -EINVAL;
-			for (i = 0; i < size; i += 4)
-				iwl_write_prph(trans, addr+i,
-					       *(u32 *)(buf+i));
-		}
-	} else if (iwl_test_valid_hw_addr(tst, addr)) {
-		iwl_trans_write_mem(trans, addr, buf, size / 4);
-	} else {
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/*
- * Handles the user application commands for indirect read/write
- * to/from the periphery or the SRAM.
- */
-static int iwl_test_indirect_mem(struct iwl_test *tst, struct nlattr **tb)
-{
-	u32 addr, size, cmd;
-	unsigned char *buf;
-
-	/* Both read and write should be blocked, for atomicity */
-	if (tst->mem.in_read)
-		return -EBUSY;
-
-	cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]);
-	if (!tb[IWL_TM_ATTR_MEM_ADDR]) {
-		IWL_ERR(tst->trans, "Error finding memory offset address\n");
-		return -ENOMSG;
-	}
-	addr = nla_get_u32(tb[IWL_TM_ATTR_MEM_ADDR]);
-	if (!tb[IWL_TM_ATTR_BUFFER_SIZE]) {
-		IWL_ERR(tst->trans, "Error finding size for memory reading\n");
-		return -ENOMSG;
-	}
-	size = nla_get_u32(tb[IWL_TM_ATTR_BUFFER_SIZE]);
-
-	if (cmd == IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ) {
-		return iwl_test_indirect_read(tst, addr,  size);
-	} else {
-		if (!tb[IWL_TM_ATTR_BUFFER_DUMP])
-			return -EINVAL;
-		buf = (unsigned char *)nla_data(tb[IWL_TM_ATTR_BUFFER_DUMP]);
-		return iwl_test_indirect_write(tst, addr, size, buf);
-	}
-}
-
-/*
- * Enable notifications to user space
- */
-static int iwl_test_notifications(struct iwl_test *tst,
-				  struct nlattr **tb)
-{
-	tst->notify = nla_get_flag(tb[IWL_TM_ATTR_ENABLE_NOTIFICATION]);
-	return 0;
-}
-
-/*
- * Handles the request to get the device id
- */
-static int iwl_test_get_dev_id(struct iwl_test *tst, struct nlattr **tb)
-{
-	u32 devid = tst->trans->hw_id;
-	struct sk_buff *skb;
-	int status;
-
-	IWL_DEBUG_INFO(tst->trans, "hw version: 0x%x\n", devid);
-
-	skb = iwl_test_alloc_reply(tst, 20);
-	if (!skb) {
-		IWL_ERR(tst->trans, "Memory allocation fail\n");
-		return -ENOMEM;
-	}
-
-	if (nla_put_u32(skb, IWL_TM_ATTR_DEVICE_ID, devid))
-		goto nla_put_failure;
-	status = iwl_test_reply(tst, skb);
-	if (status < 0)
-		IWL_ERR(tst->trans, "Error sending msg : %d\n", status);
-
-	return 0;
-
-nla_put_failure:
-	kfree_skb(skb);
-	return -EMSGSIZE;
-}
-
-/*
- * Handles the request to get the FW version
- */
-static int iwl_test_get_fw_ver(struct iwl_test *tst, struct nlattr **tb)
-{
-	struct sk_buff *skb;
-	int status;
-	u32 ver = iwl_test_fw_ver(tst);
-
-	IWL_DEBUG_INFO(tst->trans, "uCode version raw: 0x%x\n", ver);
-
-	skb = iwl_test_alloc_reply(tst, 20);
-	if (!skb) {
-		IWL_ERR(tst->trans, "Memory allocation fail\n");
-		return -ENOMEM;
-	}
-
-	if (nla_put_u32(skb, IWL_TM_ATTR_FW_VERSION, ver))
-		goto nla_put_failure;
-
-	status = iwl_test_reply(tst, skb);
-	if (status < 0)
-		IWL_ERR(tst->trans, "Error sending msg : %d\n", status);
-
-	return 0;
-
-nla_put_failure:
-	kfree_skb(skb);
-	return -EMSGSIZE;
-}
-
-/*
- * Parse the netlink message and validate that the IWL_TM_ATTR_CMD exists
- */
-int iwl_test_parse(struct iwl_test *tst, struct nlattr **tb,
-		   void *data, int len)
-{
-	int result;
-
-	result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len,
-			iwl_testmode_gnl_msg_policy);
-	if (result) {
-		IWL_ERR(tst->trans, "Fail parse gnl msg: %d\n", result);
-		return result;
-	}
-
-	/* IWL_TM_ATTR_COMMAND is absolutely mandatory */
-	if (!tb[IWL_TM_ATTR_COMMAND]) {
-		IWL_ERR(tst->trans, "Missing testmode command type\n");
-		return -ENOMSG;
-	}
-	return 0;
-}
-IWL_EXPORT_SYMBOL(iwl_test_parse);
-
-/*
- * Handle test commands.
- * Returns 1 for unknown commands (not handled by the test object); negative
- * value in case of error.
- */
-int iwl_test_handle_cmd(struct iwl_test *tst, struct nlattr **tb)
-{
-	int result;
-
-	switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
-	case IWL_TM_CMD_APP2DEV_UCODE:
-		IWL_DEBUG_INFO(tst->trans, "test cmd to uCode\n");
-		result = iwl_test_fw_cmd(tst, tb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
-	case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
-		IWL_DEBUG_INFO(tst->trans, "test cmd to register\n");
-		result = iwl_test_reg(tst, tb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
-		IWL_DEBUG_INFO(tst->trans, "test uCode trace cmd to driver\n");
-		result = iwl_test_trace_begin(tst, tb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_END_TRACE:
-		iwl_test_trace_stop(tst);
-		result = 0;
-		break;
-
-	case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ:
-	case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE:
-		IWL_DEBUG_INFO(tst->trans, "test indirect memory cmd\n");
-		result = iwl_test_indirect_mem(tst, tb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_NOTIFICATIONS:
-		IWL_DEBUG_INFO(tst->trans, "test notifications cmd\n");
-		result = iwl_test_notifications(tst, tb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
-		IWL_DEBUG_INFO(tst->trans, "test get FW ver cmd\n");
-		result = iwl_test_get_fw_ver(tst, tb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
-		IWL_DEBUG_INFO(tst->trans, "test Get device ID cmd\n");
-		result = iwl_test_get_dev_id(tst, tb);
-		break;
-
-	default:
-		IWL_DEBUG_INFO(tst->trans, "Unknown test command\n");
-		result = 1;
-		break;
-	}
-	return result;
-}
-IWL_EXPORT_SYMBOL(iwl_test_handle_cmd);
-
-static int iwl_test_trace_dump(struct iwl_test *tst, struct sk_buff *skb,
-			       struct netlink_callback *cb)
-{
-	int idx, length;
-
-	if (!tst->trace.enabled || !tst->trace.trace_addr)
-		return -EFAULT;
-
-	idx = cb->args[4];
-	if (idx >= tst->trace.nchunks)
-		return -ENOENT;
-
-	length = DUMP_CHUNK_SIZE;
-	if (((idx + 1) == tst->trace.nchunks) &&
-	    (tst->trace.size % DUMP_CHUNK_SIZE))
-		length = tst->trace.size %
-			DUMP_CHUNK_SIZE;
-
-	if (nla_put(skb, IWL_TM_ATTR_TRACE_DUMP, length,
-		    tst->trace.trace_addr + (DUMP_CHUNK_SIZE * idx)))
-		goto nla_put_failure;
-
-	cb->args[4] = ++idx;
-	return 0;
-
- nla_put_failure:
-	return -ENOBUFS;
-}
-
-static int iwl_test_buffer_dump(struct iwl_test *tst, struct sk_buff *skb,
-				struct netlink_callback *cb)
-{
-	int idx, length;
-
-	if (!tst->mem.in_read)
-		return -EFAULT;
-
-	idx = cb->args[4];
-	if (idx >= tst->mem.nchunks) {
-		iwl_test_mem_stop(tst);
-		return -ENOENT;
-	}
-
-	length = DUMP_CHUNK_SIZE;
-	if (((idx + 1) == tst->mem.nchunks) &&
-	    (tst->mem.size % DUMP_CHUNK_SIZE))
-		length = tst->mem.size % DUMP_CHUNK_SIZE;
-
-	if (nla_put(skb, IWL_TM_ATTR_BUFFER_DUMP, length,
-		    tst->mem.addr + (DUMP_CHUNK_SIZE * idx)))
-		goto nla_put_failure;
-
-	cb->args[4] = ++idx;
-	return 0;
-
- nla_put_failure:
-	return -ENOBUFS;
-}
-
-/*
- * Handle dump commands.
- * Returns 1 for unknown commands (not handled by the test object); negative
- * value in case of error.
- */
-int iwl_test_dump(struct iwl_test *tst, u32 cmd, struct sk_buff *skb,
-		  struct netlink_callback *cb)
-{
-	int result;
-
-	switch (cmd) {
-	case IWL_TM_CMD_APP2DEV_READ_TRACE:
-		IWL_DEBUG_INFO(tst->trans, "uCode trace cmd\n");
-		result = iwl_test_trace_dump(tst, skb, cb);
-		break;
-
-	case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP:
-		IWL_DEBUG_INFO(tst->trans, "testmode sram dump cmd\n");
-		result = iwl_test_buffer_dump(tst, skb, cb);
-		break;
-
-	default:
-		result = 1;
-		break;
-	}
-	return result;
-}
-IWL_EXPORT_SYMBOL(iwl_test_dump);
-
-/*
- * Multicast a spontaneous messages from the device to the user space.
- */
-static void iwl_test_send_rx(struct iwl_test *tst,
-			     struct iwl_rx_cmd_buffer *rxb)
-{
-	struct sk_buff *skb;
-	struct iwl_rx_packet *data;
-	int length;
-
-	data = rxb_addr(rxb);
-	length = le32_to_cpu(data->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
-
-	/* the length doesn't include len_n_flags field, so add it manually */
-	length += sizeof(__le32);
-
-	skb = iwl_test_alloc_event(tst, length + 20);
-	if (skb == NULL) {
-		IWL_ERR(tst->trans, "Out of memory for message to user\n");
-		return;
-	}
-
-	if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND,
-			IWL_TM_CMD_DEV2APP_UCODE_RX_PKT) ||
-	    nla_put(skb, IWL_TM_ATTR_UCODE_RX_PKT, length, data))
-		goto nla_put_failure;
-
-	iwl_test_event(tst, skb);
-	return;
-
-nla_put_failure:
-	kfree_skb(skb);
-	IWL_ERR(tst->trans, "Ouch, overran buffer, check allocation!\n");
-}
-
-/*
- * Called whenever a Rx frames is recevied from the device. If notifications to
- * the user space are requested, sends the frames to the user.
- */
-void iwl_test_rx(struct iwl_test *tst, struct iwl_rx_cmd_buffer *rxb)
-{
-	if (tst->notify)
-		iwl_test_send_rx(tst, rxb);
-}
-IWL_EXPORT_SYMBOL(iwl_test_rx);
diff --git a/drivers/net/wireless/iwlwifi/iwl-test.h b/drivers/net/wireless/iwlwifi/iwl-test.h
deleted file mode 100644
index 8fbd217..0000000
--- a/drivers/net/wireless/iwlwifi/iwl-test.h
+++ /dev/null
@@ -1,161 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license.  When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
- *
- * Contact Information:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *  * Neither the name Intel Corporation nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-
-#ifndef __IWL_TEST_H__
-#define __IWL_TEST_H__
-
-#include <linux/types.h>
-#include "iwl-trans.h"
-
-struct iwl_test_trace {
-	u32 size;
-	u32 tsize;
-	u32 nchunks;
-	u8 *cpu_addr;
-	u8 *trace_addr;
-	dma_addr_t dma_addr;
-	bool enabled;
-};
-
-struct iwl_test_mem {
-	u32 size;
-	u32 nchunks;
-	u8 *addr;
-	bool in_read;
-};
-
-/*
- * struct iwl_test_ops: callback to the op mode
- *
- * The structure defines the callbacks that the op_mode should handle,
- * inorder to handle logic that is out of the scope of iwl_test. The
- * op_mode must set all the callbacks.
-
- * @send_cmd: handler that is used by the test object to request the
- *  op_mode to send a command to the fw.
- *
- * @valid_hw_addr: handler that is used by the test object to request the
- *  op_mode to check if the given address is a valid address.
- *
- * @get_fw_ver: handler used to get the FW version.
- *
- * @alloc_reply: handler used by the test object to request the op_mode
- *  to allocate an skb for sending a reply to the user, and initialize
- *  the skb. It is assumed that the test object only fills the required
- *  attributes.
- *
- * @reply: handler used by the test object to request the op_mode to reply
- *  to a request. The skb is an skb previously allocated by the the
- *  alloc_reply callback.
- I
- * @alloc_event: handler used by the test object to request the op_mode
- *  to allocate an skb for sending an event, and initialize
- *  the skb. It is assumed that the test object only fills the required
- *  attributes.
- *
- * @reply: handler used by the test object to request the op_mode to send
- *  an event. The skb is an skb previously allocated by the the
- *  alloc_event callback.
- */
-struct iwl_test_ops {
-	int (*send_cmd)(struct iwl_op_mode *op_modes,
-			struct iwl_host_cmd *cmd);
-	bool (*valid_hw_addr)(u32 addr);
-	u32 (*get_fw_ver)(struct iwl_op_mode *op_mode);
-
-	struct sk_buff *(*alloc_reply)(struct iwl_op_mode *op_mode, int len);
-	int (*reply)(struct iwl_op_mode *op_mode, struct sk_buff *skb);
-	struct sk_buff* (*alloc_event)(struct iwl_op_mode *op_mode, int len);
-	void (*event)(struct iwl_op_mode *op_mode, struct sk_buff *skb);
-};
-
-struct iwl_test {
-	struct iwl_trans *trans;
-	struct iwl_test_ops *ops;
-	struct iwl_test_trace trace;
-	struct iwl_test_mem mem;
-	bool notify;
-};
-
-void iwl_test_init(struct iwl_test *tst, struct iwl_trans *trans,
-		   struct iwl_test_ops *ops);
-
-void iwl_test_free(struct iwl_test *tst);
-
-int iwl_test_parse(struct iwl_test *tst, struct nlattr **tb,
-		   void *data, int len);
-
-int iwl_test_handle_cmd(struct iwl_test *tst, struct nlattr **tb);
-
-int iwl_test_dump(struct iwl_test *tst, u32 cmd, struct sk_buff *skb,
-		  struct netlink_callback *cb);
-
-void iwl_test_rx(struct iwl_test *tst, struct iwl_rx_cmd_buffer *rxb);
-
-static inline void iwl_test_enable_notifications(struct iwl_test *tst,
-						 bool enable)
-{
-	tst->notify = enable;
-}
-
-#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-testmode.h b/drivers/net/wireless/iwlwifi/iwl-testmode.h
deleted file mode 100644
index 98f48a9..0000000
--- a/drivers/net/wireless/iwlwifi/iwl-testmode.h
+++ /dev/null
@@ -1,309 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license.  When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
- *
- * Contact Information:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *  * Neither the name Intel Corporation nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-#ifndef __IWL_TESTMODE_H__
-#define __IWL_TESTMODE_H__
-
-#include <linux/types.h>
-
-
-/*
- * Commands from user space to kernel space(IWL_TM_CMD_ID_APP2DEV_XX) and
- * from and kernel space to user space(IWL_TM_CMD_ID_DEV2APP_XX).
- * The command ID is carried with IWL_TM_ATTR_COMMAND.
- *
- * @IWL_TM_CMD_APP2DEV_UCODE:
- *	commands from user application to the uCode,
- *	the actual uCode host command ID is carried with
- *	IWL_TM_ATTR_UCODE_CMD_ID
- *
- * @IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
- * @IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
- * @IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
- *	commands from user applicaiton to access register
- *
- * @IWL_TM_CMD_APP2DEV_GET_DEVICENAME: retrieve device name
- * @IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: load initial uCode image
- * @IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: perform calibration
- * @IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: load runtime uCode image
- * @IWL_TM_CMD_APP2DEV_GET_EEPROM: request EEPROM data
- * @IWL_TM_CMD_APP2DEV_FIXRATE_REQ: set fix MCS
- *	commands fom user space for pure driver level operations
- *
- * @IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
- * @IWL_TM_CMD_APP2DEV_END_TRACE:
- * @IWL_TM_CMD_APP2DEV_READ_TRACE:
- *	commands fom user space for uCode trace operations
- *
- * @IWL_TM_CMD_DEV2APP_SYNC_RSP:
- *	commands from kernel space to carry the synchronous response
- *	to user application
- * @IWL_TM_CMD_DEV2APP_UCODE_RX_PKT:
- *	commands from kernel space to multicast the spontaneous messages
- *	to user application, or reply of host commands
- * @IWL_TM_CMD_DEV2APP_EEPROM_RSP:
- *	commands from kernel space to carry the eeprom response
- *	to user application
- *
- * @IWL_TM_CMD_APP2DEV_OWNERSHIP:
- *	commands from user application to own change the ownership of the uCode
- *	if application has the ownership, the only host command from
- *	testmode will deliver to uCode. Default owner is driver
- *
- * @IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: load Wake On Wireless LAN uCode image
- * @IWL_TM_CMD_APP2DEV_GET_FW_VERSION: retrieve uCode version
- * @IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: retrieve ID information in device
- * @IWL_TM_CMD_APP2DEV_GET_FW_INFO:
- *	retrieve information of existing loaded uCode image
- *
- * @IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ:
- * @IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP:
- * @IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE:
- *	Commands to read/write data from periphery or SRAM memory ranges.
- *	Fore reading, a READ command is sent from the userspace and the data
- *	is returned when the user calls a DUMP command.
- *	For writing, only a WRITE command is used.
- * @IWL_TM_CMD_APP2DEV_NOTIFICATIONS:
- *	Command to enable/disable notifications (currently RX packets) from the
- *	driver to userspace.
- */
-enum iwl_tm_cmd_t {
-	IWL_TM_CMD_APP2DEV_UCODE		= 1,
-	IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32	= 2,
-	IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32	= 3,
-	IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8	= 4,
-	IWL_TM_CMD_APP2DEV_GET_DEVICENAME	= 5,
-	IWL_TM_CMD_APP2DEV_LOAD_INIT_FW		= 6,
-	IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB	= 7,
-	IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW	= 8,
-	IWL_TM_CMD_APP2DEV_GET_EEPROM		= 9,
-	IWL_TM_CMD_APP2DEV_FIXRATE_REQ		= 10,
-	IWL_TM_CMD_APP2DEV_BEGIN_TRACE		= 11,
-	IWL_TM_CMD_APP2DEV_END_TRACE		= 12,
-	IWL_TM_CMD_APP2DEV_READ_TRACE		= 13,
-	IWL_TM_CMD_DEV2APP_SYNC_RSP		= 14,
-	IWL_TM_CMD_DEV2APP_UCODE_RX_PKT		= 15,
-	IWL_TM_CMD_DEV2APP_EEPROM_RSP		= 16,
-	IWL_TM_CMD_APP2DEV_OWNERSHIP		= 17,
-	RESERVED_18				= 18,
-	RESERVED_19				= 19,
-	RESERVED_20				= 20,
-	RESERVED_21				= 21,
-	IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW	= 22,
-	IWL_TM_CMD_APP2DEV_GET_FW_VERSION	= 23,
-	IWL_TM_CMD_APP2DEV_GET_DEVICE_ID	= 24,
-	IWL_TM_CMD_APP2DEV_GET_FW_INFO		= 25,
-	IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ = 26,
-	IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP = 27,
-	IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE = 28,
-	IWL_TM_CMD_APP2DEV_NOTIFICATIONS	= 29,
-	IWL_TM_CMD_MAX				= 30,
-};
-
-/*
- * Atrribute filed in testmode command
- * See enum iwl_tm_cmd_t.
- *
- * @IWL_TM_ATTR_NOT_APPLICABLE:
- *	The attribute is not applicable or invalid
- * @IWL_TM_ATTR_COMMAND:
- *	From user space to kernel space:
- *	the command either destines to ucode, driver, or register;
- *	From kernel space to user space:
- *	the command either carries synchronous response,
- *	or the spontaneous message multicast from the device;
- *
- * @IWL_TM_ATTR_UCODE_CMD_ID:
- * @IWL_TM_ATTR_UCODE_CMD_DATA:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE,
- *	The mandatory fields are :
- *	IWL_TM_ATTR_UCODE_CMD_ID for recognizable command ID;
- *	IWL_TM_ATTR_UCODE_CMD_DATA for the actual command payload
- *	to the ucode
- *
- * @IWL_TM_ATTR_REG_OFFSET:
- * @IWL_TM_ATTR_REG_VALUE8:
- * @IWL_TM_ATTR_REG_VALUE32:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_XXX,
- *	The mandatory fields are:
- *	IWL_TM_ATTR_REG_OFFSET for the offset of the target register;
- *	IWL_TM_ATTR_REG_VALUE8 or IWL_TM_ATTR_REG_VALUE32 for value
- *
- * @IWL_TM_ATTR_SYNC_RSP:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_SYNC_RSP,
- *	The mandatory fields are:
- *	IWL_TM_ATTR_SYNC_RSP for the data content responding to the user
- *	application command
- *
- * @IWL_TM_ATTR_UCODE_RX_PKT:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_UCODE_RX_PKT,
- *	The mandatory fields are:
- *	IWL_TM_ATTR_UCODE_RX_PKT for the data content multicast to the user
- *	application
- *
- * @IWL_TM_ATTR_EEPROM:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM,
- *	The mandatory fields are:
- *	IWL_TM_ATTR_EEPROM for the data content responging to the user
- *	application
- *
- * @IWL_TM_ATTR_TRACE_ADDR:
- * @IWL_TM_ATTR_TRACE_SIZE:
- * @IWL_TM_ATTR_TRACE_DUMP:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE,
- *	The mandatory fields are:
- *	IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address
- *	IWL_TM_ATTR_MEM_TRACE_SIZE for the trace buffer size
- *	IWL_TM_ATTR_MEM_TRACE_DUMP for the trace dump
- *
- * @IWL_TM_ATTR_FIXRATE:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ,
- *	The mandatory fields are:
- *	IWL_TM_ATTR_FIXRATE for the fixed rate
- *
- * @IWL_TM_ATTR_UCODE_OWNER:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_OWNERSHIP,
- *	The mandatory fields are:
- *	IWL_TM_ATTR_UCODE_OWNER for the new owner
- *
- * @IWL_TM_ATTR_MEM_ADDR:
- * @IWL_TM_ATTR_BUFFER_SIZE:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ
- *	or IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE.
- *	The mandatory fields are:
- *	IWL_TM_ATTR_MEM_ADDR for the address in SRAM/periphery to read/write
- *	IWL_TM_ATTR_BUFFER_SIZE for the buffer size of data to read/write.
- *
- * @IWL_TM_ATTR_BUFFER_DUMP:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP,
- *	IWL_TM_ATTR_BUFFER_DUMP is used for the data that was read.
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE,
- *	this attribute contains the data to write.
- *
- * @IWL_TM_ATTR_FW_VERSION:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_GET_FW_VERSION,
- *	IWL_TM_ATTR_FW_VERSION for the uCode version
- *
- * @IWL_TM_ATTR_DEVICE_ID:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_GET_DEVICE_ID,
- *	IWL_TM_ATTR_DEVICE_ID for the device ID information
- *
- * @IWL_TM_ATTR_FW_TYPE:
- * @IWL_TM_ATTR_FW_INST_SIZE:
- * @IWL_TM_ATTR_FW_DATA_SIZE:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_GET_FW_INFO,
- *	The mandatory fields are:
- *	IWL_TM_ATTR_FW_TYPE for the uCode type (INIT/RUNTIME/...)
- *	IWL_TM_ATTR_FW_INST_SIZE for the size of instruction section
- *	IWL_TM_ATTR_FW_DATA_SIZE for the size of data section
- *
- * @IWL_TM_ATTR_UCODE_CMD_SKB:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE this flag
- *	indicates that the user wants to receive the response of the command
- *	in a reply SKB. If it's not present, the response is not returned.
- * @IWL_TM_ATTR_ENABLE_NOTIFICATIONS:
- *	When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_NOTIFICATIONS, this
- *	flag enables (if present) or disables (if not) the forwarding
- *	to userspace.
- */
-enum iwl_tm_attr_t {
-	IWL_TM_ATTR_NOT_APPLICABLE		= 0,
-	IWL_TM_ATTR_COMMAND			= 1,
-	IWL_TM_ATTR_UCODE_CMD_ID		= 2,
-	IWL_TM_ATTR_UCODE_CMD_DATA		= 3,
-	IWL_TM_ATTR_REG_OFFSET			= 4,
-	IWL_TM_ATTR_REG_VALUE8			= 5,
-	IWL_TM_ATTR_REG_VALUE32			= 6,
-	IWL_TM_ATTR_SYNC_RSP			= 7,
-	IWL_TM_ATTR_UCODE_RX_PKT		= 8,
-	IWL_TM_ATTR_EEPROM			= 9,
-	IWL_TM_ATTR_TRACE_ADDR			= 10,
-	IWL_TM_ATTR_TRACE_SIZE			= 11,
-	IWL_TM_ATTR_TRACE_DUMP			= 12,
-	IWL_TM_ATTR_FIXRATE			= 13,
-	IWL_TM_ATTR_UCODE_OWNER			= 14,
-	IWL_TM_ATTR_MEM_ADDR			= 15,
-	IWL_TM_ATTR_BUFFER_SIZE			= 16,
-	IWL_TM_ATTR_BUFFER_DUMP			= 17,
-	IWL_TM_ATTR_FW_VERSION			= 18,
-	IWL_TM_ATTR_DEVICE_ID			= 19,
-	IWL_TM_ATTR_FW_TYPE			= 20,
-	IWL_TM_ATTR_FW_INST_SIZE		= 21,
-	IWL_TM_ATTR_FW_DATA_SIZE		= 22,
-	IWL_TM_ATTR_UCODE_CMD_SKB		= 23,
-	IWL_TM_ATTR_ENABLE_NOTIFICATION		= 24,
-	IWL_TM_ATTR_MAX				= 25,
-};
-
-/* uCode trace buffer */
-#define TRACE_BUFF_SIZE_MAX	0x200000
-#define TRACE_BUFF_SIZE_MIN	0x20000
-#define TRACE_BUFF_SIZE_DEF	TRACE_BUFF_SIZE_MIN
-#define TRACE_BUFF_PADD		0x2000
-
-/* Maximum data size of each dump it packet */
-#define DUMP_CHUNK_SIZE		(PAGE_SIZE - 1024)
-
-/* Address offset of data segment in SRAM */
-#define SRAM_DATA_SEG_OFFSET   0x800000
-
-#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index be4b2ac..8d91422c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -183,14 +183,12 @@ struct iwl_rx_packet {
  * @CMD_ASYNC: Return right away and don't want for the response
  * @CMD_WANT_SKB: valid only with CMD_SYNC. The caller needs the buffer of the
  *	response. The caller needs to call iwl_free_resp when done.
- * @CMD_ON_DEMAND: This command is sent by the test mode pipe.
  */
 enum CMD_MODE {
 	CMD_SYNC		= 0,
 	CMD_ASYNC		= BIT(0),
 	CMD_WANT_SKB		= BIT(1),
 	CMD_SEND_IN_RFKILL	= BIT(2),
-	CMD_ON_DEMAND		= BIT(3),
 };
 
 #define DEF_CMD_PAYLOAD_SIZE 320
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index fbc0acb..7d216dd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -73,7 +73,6 @@
 #include "iwl-trans.h"
 #include "iwl-notif-wait.h"
 #include "iwl-eeprom-parse.h"
-#include "iwl-test.h"
 #include "iwl-trans.h"
 #include "sta.h"
 #include "fw-api.h"
-- 
cgit v0.10.2


From a1193be83b4bb173228f04870afd6a4174b19130 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Fri, 14 Jun 2013 14:15:19 +0200
Subject: nl80211: use attributes to parse beacons

only the attributes are required and not the whole netlink info, as the
function accesses the attributes only anyway. This makes it easier to
parse nested beacon IEs later.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e402819..1c4f7da 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2882,61 +2882,58 @@ static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
 	return err;
 }
 
-static int nl80211_parse_beacon(struct genl_info *info,
+static int nl80211_parse_beacon(struct nlattr *attrs[],
 				struct cfg80211_beacon_data *bcn)
 {
 	bool haveinfo = false;
 
-	if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
-	    !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
-	    !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
-	    !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
+	if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
+	    !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
+	    !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
+	    !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
 		return -EINVAL;
 
 	memset(bcn, 0, sizeof(*bcn));
 
-	if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
-		bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
-		bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
+	if (attrs[NL80211_ATTR_BEACON_HEAD]) {
+		bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
+		bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
 		if (!bcn->head_len)
 			return -EINVAL;
 		haveinfo = true;
 	}
 
-	if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
-		bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
-		bcn->tail_len =
-		    nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
+	if (attrs[NL80211_ATTR_BEACON_TAIL]) {
+		bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
+		bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
 		haveinfo = true;
 	}
 
 	if (!haveinfo)
 		return -EINVAL;
 
-	if (info->attrs[NL80211_ATTR_IE]) {
-		bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
-		bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	if (attrs[NL80211_ATTR_IE]) {
+		bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
+		bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
 	}
 
-	if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
+	if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
 		bcn->proberesp_ies =
-			nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
+			nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
 		bcn->proberesp_ies_len =
-			nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
+			nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
 	}
 
-	if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
+	if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
 		bcn->assocresp_ies =
-			nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
+			nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
 		bcn->assocresp_ies_len =
-			nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
+			nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
 	}
 
-	if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
-		bcn->probe_resp =
-			nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
-		bcn->probe_resp_len =
-			nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
+	if (attrs[NL80211_ATTR_PROBE_RESP]) {
+		bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
+		bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
 	}
 
 	return 0;
@@ -3015,7 +3012,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
 	    !info->attrs[NL80211_ATTR_BEACON_HEAD])
 		return -EINVAL;
 
-	err = nl80211_parse_beacon(info, &params.beacon);
+	err = nl80211_parse_beacon(info->attrs, &params.beacon);
 	if (err)
 		return err;
 
@@ -3167,7 +3164,7 @@ static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
 	if (!wdev->beacon_interval)
 		return -EINVAL;
 
-	err = nl80211_parse_beacon(info, &params);
+	err = nl80211_parse_beacon(info->attrs, &params);
 	if (err)
 		return err;
 
-- 
cgit v0.10.2


From f81a9dedaff434604c7fc3d9c299d277b76db0a8 Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <thomas@cozybit.com>
Date: Thu, 13 Jun 2013 15:54:41 -0700
Subject: mac80211: update mesh beacon on workqueue

Instead of updating the mesh beacon immediately when
requested (which would require the sdata_lock()), defer it
to the mac80211 workqueue.

Fixes yet another deadlock on calling sta_info_flush()
with the sdata_lock() held from ieee80211_stop_mesh(). We
could just drop the sdata_lock() around the
mesh_sta_cleanup() call, but this path is also taken from
several non-locked error paths.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
[fix comment position]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index a4dfb0b..194be3d 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -544,6 +544,7 @@ struct ieee80211_if_mesh {
 	struct timer_list mesh_path_root_timer;
 
 	unsigned long wrkq_flags;
+	unsigned long mbss_changed;
 
 	u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
 	size_t mesh_id_len;
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 6c33af4..d5dea94 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -161,11 +161,8 @@ void mesh_sta_cleanup(struct sta_info *sta)
 		del_timer_sync(&sta->plink_timer);
 	}
 
-	if (changed) {
-		sdata_lock(sdata);
+	if (changed)
 		ieee80211_mbss_info_change_notify(sdata, changed);
-		sdata_unlock(sdata);
-	}
 }
 
 int mesh_rmc_init(struct ieee80211_sub_if_data *sdata)
@@ -719,14 +716,18 @@ ieee80211_mesh_rebuild_beacon(struct ieee80211_sub_if_data *sdata)
 void ieee80211_mbss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				       u32 changed)
 {
-	if (sdata->vif.bss_conf.enable_beacon &&
-	    (changed & (BSS_CHANGED_BEACON |
-			BSS_CHANGED_HT |
-			BSS_CHANGED_BASIC_RATES |
-			BSS_CHANGED_BEACON_INT)))
-		if (ieee80211_mesh_rebuild_beacon(sdata))
-			return;
-	ieee80211_bss_info_change_notify(sdata, changed);
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	unsigned long bits = changed;
+	u32 bit;
+
+	if (!bits)
+		return;
+
+	/* if we race with running work, worst case this work becomes a noop */
+	for_each_set_bit(bit, &bits, sizeof(changed) * BITS_PER_BYTE)
+		set_bit(bit, &ifmsh->mbss_changed);
+	set_bit(MESH_WORK_MBSS_CHANGED, &ifmsh->wrkq_flags);
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 }
 
 int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
@@ -799,6 +800,10 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 	del_timer_sync(&sdata->u.mesh.mesh_path_root_timer);
 	del_timer_sync(&sdata->u.mesh.mesh_path_timer);
 
+	/* clear any mesh work (for next join) we may have accrued */
+	ifmsh->wrkq_flags = 0;
+	ifmsh->mbss_changed = 0;
+
 	local->fif_other_bss--;
 	atomic_dec(&local->iff_allmultis);
 	ieee80211_configure_filter(local);
@@ -965,6 +970,28 @@ out:
 	sdata_unlock(sdata);
 }
 
+static void mesh_bss_info_changed(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	u32 bit, changed = 0;
+
+	for_each_set_bit(bit, &ifmsh->mbss_changed,
+			 sizeof(changed) * BITS_PER_BYTE) {
+		clear_bit(bit, &ifmsh->mbss_changed);
+		changed |= BIT(bit);
+	}
+
+	if (sdata->vif.bss_conf.enable_beacon &&
+	    (changed & (BSS_CHANGED_BEACON |
+			BSS_CHANGED_HT |
+			BSS_CHANGED_BASIC_RATES |
+			BSS_CHANGED_BEACON_INT)))
+		if (ieee80211_mesh_rebuild_beacon(sdata))
+			return;
+
+	ieee80211_bss_info_change_notify(sdata, changed);
+}
+
 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
@@ -995,6 +1022,8 @@ void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
 	if (test_and_clear_bit(MESH_WORK_DRIFT_ADJUST, &ifmsh->wrkq_flags))
 		mesh_sync_adjust_tbtt(sdata);
 
+	if (test_and_clear_bit(MESH_WORK_MBSS_CHANGED, &ifmsh->wrkq_flags))
+		mesh_bss_info_changed(sdata);
 out:
 	sdata_unlock(sdata);
 }
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 01a28bc..2bc7fd2 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -58,6 +58,7 @@ enum mesh_path_flags {
  * @MESH_WORK_ROOT: the mesh root station needs to send a frame
  * @MESH_WORK_DRIFT_ADJUST: time to compensate for clock drift relative to other
  * mesh nodes
+ * @MESH_WORK_MBSS_CHANGED: rebuild beacon and notify driver of BSS changes
  */
 enum mesh_deferred_task_flags {
 	MESH_WORK_HOUSEKEEPING,
@@ -65,6 +66,7 @@ enum mesh_deferred_task_flags {
 	MESH_WORK_GROW_MPP_TABLE,
 	MESH_WORK_ROOT,
 	MESH_WORK_DRIFT_ADJUST,
+	MESH_WORK_MBSS_CHANGED,
 };
 
 /**
-- 
cgit v0.10.2


From 2f301ab29e4656af824592363039d8f6bd5a9f68 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 16 May 2013 13:00:28 +0200
Subject: nl80211/cfg80211: add 5 and 10 MHz defines and wiphy flag

Add defines for 5 and 10 MHz channel width and fix channel
handling functions accordingly.

Also check for and report the WIPHY_FLAG_SUPPORTS_5_10_MHZ
capability.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
[fix spelling in comment]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 6a43c34..316f34b 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2342,6 +2342,7 @@ struct cfg80211_ops {
  *	responds to probe-requests in hardware.
  * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
  * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
+ * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels.
  */
 enum wiphy_flags {
 	WIPHY_FLAG_CUSTOM_REGULATORY		= BIT(0),
@@ -2365,6 +2366,7 @@ enum wiphy_flags {
 	WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD	= BIT(19),
 	WIPHY_FLAG_OFFCHAN_TX			= BIT(20),
 	WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL	= BIT(21),
+	WIPHY_FLAG_SUPPORTS_5_10_MHZ		= BIT(22),
 };
 
 /**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index ca6facf..861e5eb 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2758,6 +2758,8 @@ enum nl80211_channel_type {
  *	and %NL80211_ATTR_CENTER_FREQ2 attributes must be provided as well
  * @NL80211_CHAN_WIDTH_160: 160 MHz channel, the %NL80211_ATTR_CENTER_FREQ1
  *	attribute must be provided as well
+ * @NL80211_CHAN_WIDTH_5: 5 MHz OFDM channel
+ * @NL80211_CHAN_WIDTH_10: 10 MHz OFDM channel
  */
 enum nl80211_chan_width {
 	NL80211_CHAN_WIDTH_20_NOHT,
@@ -2766,6 +2768,8 @@ enum nl80211_chan_width {
 	NL80211_CHAN_WIDTH_80,
 	NL80211_CHAN_WIDTH_80P80,
 	NL80211_CHAN_WIDTH_160,
+	NL80211_CHAN_WIDTH_5,
+	NL80211_CHAN_WIDTH_10,
 };
 
 /**
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index fd556ac..50f6195 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -54,6 +54,8 @@ bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef)
 	control_freq = chandef->chan->center_freq;
 
 	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
 	case NL80211_CHAN_WIDTH_20:
 	case NL80211_CHAN_WIDTH_20_NOHT:
 		if (chandef->center_freq1 != control_freq)
@@ -152,6 +154,12 @@ static int cfg80211_chandef_get_width(const struct cfg80211_chan_def *c)
 	int width;
 
 	switch (c->width) {
+	case NL80211_CHAN_WIDTH_5:
+		width = 5;
+		break;
+	case NL80211_CHAN_WIDTH_10:
+		width = 10;
+		break;
 	case NL80211_CHAN_WIDTH_20:
 	case NL80211_CHAN_WIDTH_20_NOHT:
 		width = 20;
@@ -194,6 +202,16 @@ cfg80211_chandef_compatible(const struct cfg80211_chan_def *c1,
 	if (c1->width == c2->width)
 		return NULL;
 
+	/*
+	 * can't be compatible if one of them is 5 or 10 MHz,
+	 * but they don't have the same width.
+	 */
+	if (c1->width == NL80211_CHAN_WIDTH_5 ||
+	    c1->width == NL80211_CHAN_WIDTH_10 ||
+	    c2->width == NL80211_CHAN_WIDTH_5 ||
+	    c2->width == NL80211_CHAN_WIDTH_10)
+		return NULL;
+
 	if (c1->width == NL80211_CHAN_WIDTH_20_NOHT ||
 	    c1->width == NL80211_CHAN_WIDTH_20)
 		return c2;
@@ -264,11 +282,17 @@ static int cfg80211_get_chans_dfs_required(struct wiphy *wiphy,
 					    u32 bandwidth)
 {
 	struct ieee80211_channel *c;
-	u32 freq;
+	u32 freq, start_freq, end_freq;
+
+	if (bandwidth <= 20) {
+		start_freq = center_freq;
+		end_freq = center_freq;
+	} else {
+		start_freq = center_freq - bandwidth/2 + 10;
+		end_freq = center_freq + bandwidth/2 - 10;
+	}
 
-	for (freq = center_freq - bandwidth/2 + 10;
-	     freq <= center_freq + bandwidth/2 - 10;
-	     freq += 20) {
+	for (freq = start_freq; freq <= end_freq; freq += 20) {
 		c = ieee80211_get_channel(wiphy, freq);
 		if (!c)
 			return -EINVAL;
@@ -310,11 +334,17 @@ static bool cfg80211_secondary_chans_ok(struct wiphy *wiphy,
 					u32 prohibited_flags)
 {
 	struct ieee80211_channel *c;
-	u32 freq;
+	u32 freq, start_freq, end_freq;
+
+	if (bandwidth <= 20) {
+		start_freq = center_freq;
+		end_freq = center_freq;
+	} else {
+		start_freq = center_freq - bandwidth/2 + 10;
+		end_freq = center_freq + bandwidth/2 - 10;
+	}
 
-	for (freq = center_freq - bandwidth/2 + 10;
-	     freq <= center_freq + bandwidth/2 - 10;
-	     freq += 20) {
+	for (freq = start_freq; freq <= end_freq; freq += 20) {
 		c = ieee80211_get_channel(wiphy, freq);
 		if (!c)
 			return false;
@@ -349,6 +379,12 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
 	control_freq = chandef->chan->center_freq;
 
 	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_5:
+		width = 5;
+		break;
+	case NL80211_CHAN_WIDTH_10:
+		width = 10;
+		break;
 	case NL80211_CHAN_WIDTH_20:
 		if (!ht_cap->ht_supported)
 			return false;
@@ -405,6 +441,11 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
 	if (width > 20)
 		prohibited_flags |= IEEE80211_CHAN_NO_OFDM;
 
+	/* 5 and 10 MHz are only defined for the OFDM PHY */
+	if (width < 20)
+		prohibited_flags |= IEEE80211_CHAN_NO_OFDM;
+
+
 	if (!cfg80211_secondary_chans_ok(wiphy, chandef->center_freq1,
 					 width, prohibited_flags))
 		return false;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1c4f7da..4ab1ffa 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1188,6 +1188,9 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 		if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
 		    nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
 			goto nla_put_failure;
+		if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
+		    nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
+			goto nla_put_failure;
 
 		(*split_start)++;
 		if (split)
@@ -1731,6 +1734,11 @@ static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
 				     IEEE80211_CHAN_DISABLED))
 		return -EINVAL;
 
+	if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
+	     chandef->width == NL80211_CHAN_WIDTH_10) &&
+	    !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
+		return -EINVAL;
+
 	return 0;
 }
 
@@ -6280,11 +6288,16 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
 	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
 		return -EINVAL;
 
-	if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
-		return -EINVAL;
-	if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
-	    !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
+	switch (ibss.chandef.width) {
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		break;
+	case NL80211_CHAN_WIDTH_20:
+	case NL80211_CHAN_WIDTH_40:
+		if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
+			break;
+	default:
 		return -EINVAL;
+	}
 
 	ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
 	ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
-- 
cgit v0.10.2


From 30e747326378caec9ad13515bc9bde2e41b1fee3 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 16 May 2013 13:00:29 +0200
Subject: nl80211: add rate flags for 5/10 Mhz channels

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 316f34b..e3a39fc 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -188,6 +188,8 @@ struct ieee80211_channel {
  *	when used with 802.11g (on the 2.4 GHz band); filled by the
  *	core code when registering the wiphy.
  * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
+ * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode
+ * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode
  */
 enum ieee80211_rate_flags {
 	IEEE80211_RATE_SHORT_PREAMBLE	= 1<<0,
@@ -195,6 +197,8 @@ enum ieee80211_rate_flags {
 	IEEE80211_RATE_MANDATORY_B	= 1<<2,
 	IEEE80211_RATE_MANDATORY_G	= 1<<3,
 	IEEE80211_RATE_ERP_G		= 1<<4,
+	IEEE80211_RATE_SUPPORTS_5MHZ	= 1<<5,
+	IEEE80211_RATE_SUPPORTS_10MHZ	= 1<<6,
 };
 
 /**
@@ -433,6 +437,30 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
 			     u32 prohibited_flags);
 
 /**
+ * ieee80211_chandef_rate_flags - returns rate flags for a channel
+ *
+ * In some channel types, not all rates may be used - for example CCK
+ * rates may not be used in 5/10 MHz channels.
+ *
+ * @chandef: channel definition for the channel
+ *
+ * Returns: rate flags which apply for this channel
+ */
+static inline enum ieee80211_rate_flags
+ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef)
+{
+	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_5:
+		return IEEE80211_RATE_SUPPORTS_5MHZ;
+	case NL80211_CHAN_WIDTH_10:
+		return IEEE80211_RATE_SUPPORTS_10MHZ;
+	default:
+		break;
+	}
+	return 0;
+}
+
+/**
  * enum survey_info_flags - survey information flags
  *
  * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
-- 
cgit v0.10.2


From 0418a445838749c51cf1e31a9c7ace6685ae87cd Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 16 May 2013 13:00:31 +0200
Subject: mac80211: fix various components for the new 5 and 10 MHz widths

This is a collection of minor fixes:
 * don't allow HT IEs in IBSS for 5/10 MHz
 * don't allow HT IEs in Mesh for 5/10 MHz
 * don't downgrade from/to 5 and 10 MHz channels
 * don't try HT rates for 5 and 10 MHz channels when selecting rates

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index caa4b4f..3789c85 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -176,6 +176,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 
 	/* add HT capability and information IEs */
 	if (chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
+	    chandef.width != NL80211_CHAN_WIDTH_5 &&
+	    chandef.width != NL80211_CHAN_WIDTH_10 &&
 	    sband->ht_cap.ht_supported) {
 		pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
 						sband->ht_cap.cap);
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index d5dea94..447f41b 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -416,7 +416,9 @@ int mesh_add_ht_cap_ie(struct ieee80211_sub_if_data *sdata,
 
 	sband = local->hw.wiphy->bands[band];
 	if (!sband->ht_cap.ht_supported ||
-	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT ||
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 ||
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10)
 		return 0;
 
 	if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap))
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 09bebed..02c05fa 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -154,8 +154,14 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
 	u16 ht_opmode;
 	bool non_ht_sta = false, ht20_sta = false;
 
-	if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+	switch (sdata->vif.bss_conf.chandef.width) {
+	case NL80211_CHAN_WIDTH_20_NOHT:
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
 		return 0;
+	default:
+		break;
+	}
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sta, &local->sta_list, list) {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 87f2d4d..e0939eb 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -190,6 +190,12 @@ static u32 chandef_downgrade(struct cfg80211_chan_def *c)
 		c->width = NL80211_CHAN_WIDTH_20_NOHT;
 		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
 		break;
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
+		WARN_ON_ONCE(1);
+		/* keep c->width */
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
 	}
 
 	WARN_ON_ONCE(!cfg80211_chandef_valid(c));
@@ -3771,6 +3777,12 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
 	 */
 	ret = ieee80211_vif_use_channel(sdata, &chandef,
 					IEEE80211_CHANCTX_SHARED);
+
+	/* don't downgrade for 5 and 10 MHz channels, though. */
+	if (chandef.width == NL80211_CHAN_WIDTH_5 ||
+	    chandef.width == NL80211_CHAN_WIDTH_10)
+		return ret;
+
 	while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) {
 		ifmgd->flags |= chandef_downgrade(&chandef);
 		ret = ieee80211_vif_use_channel(sdata, &chandef,
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index d3f414f..dbbcd57 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -397,8 +397,14 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
 			return;
 
 		/* if HT BSS, and we handle a data frame, also try HT rates */
-		if (chan_width == NL80211_CHAN_WIDTH_20_NOHT)
+		switch (chan_width) {
+		case NL80211_CHAN_WIDTH_20_NOHT:
+		case NL80211_CHAN_WIDTH_5:
+		case NL80211_CHAN_WIDTH_10:
 			return;
+		default:
+			break;
+		}
 
 		alt_rate.idx = 0;
 		/* keep protection flags */
-- 
cgit v0.10.2


From 3aede78aad2a7e39a81b4b0caa771d40254a6787 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 16 May 2013 13:00:36 +0200
Subject: mac80211: change IBSS channel state to chandef

This should make some parts cleaner and is also required for handling
5/10 MHz properly.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 3789c85..eaacfd2 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -81,7 +81,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 
 	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
 
-	cfg80211_chandef_create(&chandef, chan, ifibss->channel_type);
+	chandef = ifibss->chandef;
 	if (!cfg80211_reg_can_beacon(local->hw.wiphy, &chandef)) {
 		chandef.width = NL80211_CHAN_WIDTH_20;
 		chandef.center_freq1 = chan->center_freq;
@@ -516,7 +516,9 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			set_sta_flag(sta, WLAN_STA_WME);
 
 		if (sta && elems->ht_operation && elems->ht_cap_elem &&
-		    sdata->u.ibss.channel_type != NL80211_CHAN_NO_HT) {
+		    sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
+		    sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_5 &&
+		    sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_10) {
 			/* we both use HT */
 			struct ieee80211_ht_cap htcap_ie;
 			struct cfg80211_chan_def chandef;
@@ -531,8 +533,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			 * fall back to HT20 if we don't use or use
 			 * the other extension channel
 			 */
-			if (cfg80211_get_chandef_type(&chandef) !=
-						sdata->u.ibss.channel_type)
+			if (chandef.center_freq1 !=
+			    sdata->u.ibss.chandef.center_freq1)
 				htcap_ie.cap_info &=
 					cpu_to_le16(~IEEE80211_HT_CAP_SUP_WIDTH_20_40);
 
@@ -571,7 +573,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 
 	/* different channel */
 	if (sdata->u.ibss.fixed_channel &&
-	    sdata->u.ibss.channel != cbss->channel)
+	    sdata->u.ibss.chandef.chan != cbss->channel)
 		goto put_bss;
 
 	/* different SSID */
@@ -761,7 +763,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 		sdata->drop_unencrypted = 0;
 
 	__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
-				  ifibss->channel, ifibss->basic_rates,
+				  ifibss->chandef.chan, ifibss->basic_rates,
 				  capability, 0, true);
 }
 
@@ -793,7 +795,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	if (ifibss->fixed_bssid)
 		bssid = ifibss->bssid;
 	if (ifibss->fixed_channel)
-		chan = ifibss->channel;
+		chan = ifibss->chandef.chan;
 	if (!is_zero_ether_addr(ifibss->bssid))
 		bssid = ifibss->bssid;
 	cbss = cfg80211_get_bss(local->hw.wiphy, chan, bssid,
@@ -1060,9 +1062,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 
 	sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 
-	sdata->u.ibss.channel = params->chandef.chan;
-	sdata->u.ibss.channel_type =
-		cfg80211_get_chandef_type(&params->chandef);
+	sdata->u.ibss.chandef = params->chandef;
 	sdata->u.ibss.fixed_channel = params->channel_fixed;
 
 	if (params->ie) {
@@ -1121,7 +1121,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 		if (ifibss->privacy)
 			capability |= WLAN_CAPABILITY_PRIVACY;
 
-		cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->channel,
+		cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan,
 					ifibss->bssid, ifibss->ssid,
 					ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
 					WLAN_CAPABILITY_PRIVACY,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 194be3d..1bfc395 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -504,8 +504,7 @@ struct ieee80211_if_ibss {
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
 	u8 ssid_len, ie_len;
 	u8 *ie;
-	struct ieee80211_channel *channel;
-	enum nl80211_channel_type channel_type;
+	struct cfg80211_chan_def chandef;
 
 	unsigned long ibss_join_req;
 	/* probe response/beacon for IBSS */
-- 
cgit v0.10.2


From 52874a5e3917dde3b081521b014d6e4b226aacff Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 18 Jun 2013 14:20:40 +0200
Subject: Revert "mac80211: in IBSS use the Auth frame to trigger STA
 reinsertion"

This reverts commit 6d810f10325522cfcf498dc6d64b9f96e1f5153f

In this way an IBSS station will not use the AUTH messages
to trigger a state reinitialisation anymore.

The behaviour was racy and was not working properly.
It has been introduced to help wpa_supplicant to support
IBSS/RSN, however all the logic is now getting moved into
wpa_s itself which will also be in charge of handling the
AUTH messages thanks to the mgmt frame registration.

If userspace does not register for receiving AUTH frames
then mac80211 will still reply by itself.

At the same time, the auth frame registration counter can be
removed since it is not needed anymore.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
[remove unused variable]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 64cf294..18ba7ed 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2924,19 +2924,8 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
 					  u16 frame_type, bool reg)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 
 	switch (frame_type) {
-	case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
-		if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-			struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-			if (reg)
-				ifibss->auth_frame_registrations++;
-			else
-				ifibss->auth_frame_registrations--;
-		}
-		break;
 	case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
 		if (reg)
 			local->probe_req_reg++;
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index eaacfd2..ea7b9c2 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -300,8 +300,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				  tsf, false);
 }
 
-static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta,
-						  bool auth)
+static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta)
 	__acquires(RCU)
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
@@ -323,20 +322,12 @@ static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta,
 	/* If it fails, maybe we raced another insertion? */
 	if (sta_info_insert_rcu(sta))
 		return sta_info_get(sdata, addr);
-	if (auth && !sdata->u.ibss.auth_frame_registrations) {
-		ibss_dbg(sdata,
-			 "TX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=1)\n",
-			 sdata->vif.addr, addr, sdata->u.ibss.bssid);
-		ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, 0, NULL, 0,
-				    addr, sdata->u.ibss.bssid, NULL, 0, 0, 0);
-	}
 	return sta;
 }
 
 static struct sta_info *
-ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
-		       const u8 *bssid, const u8 *addr,
-		       u32 supp_rates, bool auth)
+ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
+		       const u8 *addr, u32 supp_rates)
 	__acquires(RCU)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
@@ -387,7 +378,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	sta->sta.supp_rates[band] = supp_rates |
 			ieee80211_mandatory_rates(sband);
 
-	return ieee80211_ibss_finish_sta(sta, auth);
+	return ieee80211_ibss_finish_sta(sta);
 }
 
 static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata,
@@ -409,8 +400,6 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 					size_t len)
 {
 	u16 auth_alg, auth_transaction;
-	struct sta_info *sta;
-	u8 deauth_frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
 	sdata_assert_lock(sdata);
 
@@ -427,22 +416,6 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 	if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1)
 		return;
 
-	sta_info_destroy_addr(sdata, mgmt->sa);
-	sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, 0, false);
-	rcu_read_unlock();
-
-	/*
-	 * if we have any problem in allocating the new station, we reply with a
-	 * DEAUTH frame to tell the other end that we had a problem
-	 */
-	if (!sta) {
-		ieee80211_send_deauth_disassoc(sdata, sdata->u.ibss.bssid,
-					       IEEE80211_STYPE_DEAUTH,
-					       WLAN_REASON_UNSPECIFIED, true,
-					       deauth_frame_buf);
-		return;
-	}
-
 	/*
 	 * IEEE 802.11 standard does not require authentication in IBSS
 	 * networks and most implementations do not seem to use it.
@@ -508,7 +481,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			} else {
 				rcu_read_unlock();
 				sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid,
-						mgmt->sa, supp_rates, true);
+						mgmt->sa, supp_rates);
 			}
 		}
 
@@ -614,7 +587,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		ieee80211_sta_join_ibss(sdata, bss);
 		supp_rates = ieee80211_sta_get_rates(local, elems, band, NULL);
 		ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa,
-				       supp_rates, true);
+				       supp_rates);
 		rcu_read_unlock();
 	}
 
@@ -986,7 +959,7 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
 		list_del(&sta->list);
 		spin_unlock_bh(&ifibss->incomplete_lock);
 
-		ieee80211_ibss_finish_sta(sta, true);
+		ieee80211_ibss_finish_sta(sta);
 		rcu_read_unlock();
 		spin_lock_bh(&ifibss->incomplete_lock);
 	}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 1bfc395..00d71e9 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -498,7 +498,6 @@ struct ieee80211_if_ibss {
 	bool privacy;
 
 	bool control_port;
-	unsigned int auth_frame_registrations;
 
 	u8 bssid[ETH_ALEN] __aligned(2);
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
-- 
cgit v0.10.2


From 143353104983f5af2c6087203b83312e58f3dc86 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 18 Jun 2013 10:13:39 +0530
Subject: ath9k: Merge HWTIMER debug level with BTCOEX

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 4521342..daeafef 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -239,13 +239,12 @@ enum ATH_DEBUG {
 	ATH_DBG_CONFIG		= 0x00000200,
 	ATH_DBG_FATAL		= 0x00000400,
 	ATH_DBG_PS		= 0x00000800,
-	ATH_DBG_HWTIMER		= 0x00001000,
-	ATH_DBG_BTCOEX		= 0x00002000,
-	ATH_DBG_WMI		= 0x00004000,
-	ATH_DBG_BSTUCK		= 0x00008000,
-	ATH_DBG_MCI		= 0x00010000,
-	ATH_DBG_DFS		= 0x00020000,
-	ATH_DBG_WOW		= 0x00040000,
+	ATH_DBG_BTCOEX		= 0x00001000,
+	ATH_DBG_WMI		= 0x00002000,
+	ATH_DBG_BSTUCK		= 0x00004000,
+	ATH_DBG_MCI		= 0x00008000,
+	ATH_DBG_DFS		= 0x00010000,
+	ATH_DBG_WOW		= 0x00020000,
 	ATH_DBG_ANY		= 0xffffffff
 };
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index ca9d9cd..5324c33 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3042,7 +3042,7 @@ void ath9k_hw_gen_timer_start(struct ath_hw *ah,
 
 	timer_next = tsf + trig_timeout;
 
-	ath_dbg(ath9k_hw_common(ah), HWTIMER,
+	ath_dbg(ath9k_hw_common(ah), BTCOEX,
 		"current tsf %x period %x timer_next %x\n",
 		tsf, timer_period, timer_next);
 
@@ -3141,7 +3141,7 @@ void ath_gen_timer_isr(struct ath_hw *ah)
 		index = rightmost_index(timer_table, &thresh_mask);
 		timer = timer_table->timers[index];
 		BUG_ON(!timer);
-		ath_dbg(common, HWTIMER, "TSF overflow for Gen timer %d\n",
+		ath_dbg(common, BTCOEX, "TSF overflow for Gen timer %d\n",
 			index);
 		timer->overflow(timer->arg);
 	}
@@ -3150,7 +3150,7 @@ void ath_gen_timer_isr(struct ath_hw *ah)
 		index = rightmost_index(timer_table, &trigger_mask);
 		timer = timer_table->timers[index];
 		BUG_ON(!timer);
-		ath_dbg(common, HWTIMER,
+		ath_dbg(common, BTCOEX,
 			"Gen timer[%d] trigger\n", index);
 		timer->trigger(timer->arg);
 	}
-- 
cgit v0.10.2


From df401907b8cb2f6868ecbe82eaf029c3c9097674 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 18 Jun 2013 10:13:40 +0530
Subject: ath9k: Convert a couple of debug messages

Use the REGULATORY debug level to print the target power
details. EEPROM can be used for other purposes and this
spams the log.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index eae23b9..1e86977 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -4562,7 +4562,7 @@ static void ar9003_hw_get_target_power_eeprom(struct ath_hw *ah,
 						 is2GHz);
 
 	for (i = 0; i < ar9300RateSize; i++) {
-		ath_dbg(common, EEPROM, "TPC[%02d] 0x%08x\n",
+		ath_dbg(common, REGULATORY, "TPC[%02d] 0x%08x\n",
 			i, targetPowerValT2[i]);
 	}
 }
@@ -5288,7 +5288,7 @@ static void ath9k_hw_ar9300_set_txpower(struct ath_hw *ah,
 		return;
 
 	for (i = 0; i < ar9300RateSize; i++) {
-		ath_dbg(common, EEPROM, "TPC[%02d] 0x%08x\n",
+		ath_dbg(common, REGULATORY, "TPC[%02d] 0x%08x\n",
 			i, targetPowerValT2[i]);
 	}
 
-- 
cgit v0.10.2


From 745a84e5c0675e41d38d93936ea5328da6bcc50c Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 18 Jun 2013 10:13:41 +0530
Subject: ath9k: Update AR9462 2.0 initvals

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index 999ab08..f00e945 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -78,7 +78,7 @@ static const u32 ar9462_2p0_baseband_postamble[][5] = {
 	{0x0000a284, 0x00000000, 0x00000000, 0x00000150, 0x00000150},
 	{0x0000a288, 0x00000110, 0x00000110, 0x00000110, 0x00000110},
 	{0x0000a28c, 0x00022222, 0x00022222, 0x00022222, 0x00022222},
-	{0x0000a2c4, 0x00058d18, 0x00058d18, 0x00058d18, 0x00058d18},
+	{0x0000a2c4, 0x00158d18, 0x00158d18, 0x00158d18, 0x00158d18},
 	{0x0000a2d0, 0x00041981, 0x00041981, 0x00041981, 0x00041982},
 	{0x0000a2d8, 0x7999a83b, 0x7999a83b, 0x7999a83b, 0x7999a83b},
 	{0x0000a358, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
-- 
cgit v0.10.2


From 51dbd0a897a995b44c2db04e29f224ae8fb8559b Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 18 Jun 2013 10:13:42 +0530
Subject: ath9k: Add support for 5G-XLNA/AR9462

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index a3523c9..ce748af 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -627,9 +627,22 @@ static void ar9003_rx_gain_table_mode1(struct ath_hw *ah)
 
 static void ar9003_rx_gain_table_mode2(struct ath_hw *ah)
 {
-	if (AR_SREV_9462_20(ah))
+	if (AR_SREV_9462_20(ah)) {
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			       ar9462_common_mixed_rx_gain_table_2p0);
+		INIT_INI_ARRAY(&ah->ini_modes_rxgain_5g_xlna,
+			       ar9462_2p0_baseband_postamble_5g_xlna);
+	}
+}
+
+static void ar9003_rx_gain_table_mode3(struct ath_hw *ah)
+{
+	if (AR_SREV_9462_20(ah)) {
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+			       ar9462_2p0_5g_xlna_only_rxgain);
+		INIT_INI_ARRAY(&ah->ini_modes_rxgain_5g_xlna,
+			       ar9462_2p0_baseband_postamble_5g_xlna);
+	}
 }
 
 static void ar9003_rx_gain_table_apply(struct ath_hw *ah)
@@ -645,6 +658,9 @@ static void ar9003_rx_gain_table_apply(struct ath_hw *ah)
 	case 2:
 		ar9003_rx_gain_table_mode2(ah);
 		break;
+	case 3:
+		ar9003_rx_gain_table_mode3(ah);
+		break;
 	}
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index bc48312..df919e2 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -735,6 +735,9 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 		return -EINVAL;
 	}
 
+	/*
+	 * SOC, MAC, BB, RADIO initvals.
+	 */
 	for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
 		ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
 		ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
@@ -746,11 +749,29 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 					   modesIndex);
 	}
 
+	/*
+	 * RXGAIN initvals.
+	 */
 	REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
+
+	if (AR_SREV_9462_20(ah)) {
+		/*
+		 * 5G-XLNA
+		 */
+		if ((ar9003_hw_get_rx_gain_idx(ah) == 2) ||
+		    (ar9003_hw_get_rx_gain_idx(ah) == 3)) {
+			REG_WRITE_ARRAY(&ah->ini_modes_rxgain_5g_xlna,
+					modesIndex, regWrites);
+		}
+	}
+
 	if (AR_SREV_9550(ah))
 		REG_WRITE_ARRAY(&ah->ini_modes_rx_gain_bounds, modesIndex,
 				regWrites);
 
+	/*
+	 * TXGAIN initvals.
+	 */
 	if (AR_SREV_9550(ah)) {
 		int modes_txgain_index;
 
@@ -772,8 +793,14 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 		REG_WRITE_ARRAY(&ah->iniModesFastClock,
 				modesIndex, regWrites);
 
+	/*
+	 * Clock frequency initvals.
+	 */
 	REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
 
+	/*
+	 * JAPAN regulatory.
+	 */
 	if (chan->channel == 2484)
 		ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index f00e945..bcd0cae 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -1449,4 +1449,269 @@ static const u32 ar9462_common_mixed_rx_gain_table_2p0[][2] = {
 	{0x0000b1fc, 0x00000196},
 };
 
+static const u32 ar9462_2p0_baseband_postamble_5g_xlna[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c282},
+};
+
+static const u32 ar9462_2p0_5g_xlna_only_rxgain[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a000, 0x00010000},
+	{0x0000a004, 0x00030002},
+	{0x0000a008, 0x00050004},
+	{0x0000a00c, 0x00810080},
+	{0x0000a010, 0x00830082},
+	{0x0000a014, 0x01810180},
+	{0x0000a018, 0x01830182},
+	{0x0000a01c, 0x01850184},
+	{0x0000a020, 0x01890188},
+	{0x0000a024, 0x018b018a},
+	{0x0000a028, 0x018d018c},
+	{0x0000a02c, 0x03820190},
+	{0x0000a030, 0x03840383},
+	{0x0000a034, 0x03880385},
+	{0x0000a038, 0x038a0389},
+	{0x0000a03c, 0x038c038b},
+	{0x0000a040, 0x0390038d},
+	{0x0000a044, 0x03920391},
+	{0x0000a048, 0x03940393},
+	{0x0000a04c, 0x03960395},
+	{0x0000a050, 0x00000000},
+	{0x0000a054, 0x00000000},
+	{0x0000a058, 0x00000000},
+	{0x0000a05c, 0x00000000},
+	{0x0000a060, 0x00000000},
+	{0x0000a064, 0x00000000},
+	{0x0000a068, 0x00000000},
+	{0x0000a06c, 0x00000000},
+	{0x0000a070, 0x00000000},
+	{0x0000a074, 0x00000000},
+	{0x0000a078, 0x00000000},
+	{0x0000a07c, 0x00000000},
+	{0x0000a080, 0x29292929},
+	{0x0000a084, 0x29292929},
+	{0x0000a088, 0x29292929},
+	{0x0000a08c, 0x29292929},
+	{0x0000a090, 0x22292929},
+	{0x0000a094, 0x1d1d2222},
+	{0x0000a098, 0x0c111117},
+	{0x0000a09c, 0x00030303},
+	{0x0000a0a0, 0x00000000},
+	{0x0000a0a4, 0x00000000},
+	{0x0000a0a8, 0x00000000},
+	{0x0000a0ac, 0x00000000},
+	{0x0000a0b0, 0x00000000},
+	{0x0000a0b4, 0x00000000},
+	{0x0000a0b8, 0x00000000},
+	{0x0000a0bc, 0x00000000},
+	{0x0000a0c0, 0x001f0000},
+	{0x0000a0c4, 0x01000101},
+	{0x0000a0c8, 0x011e011f},
+	{0x0000a0cc, 0x011c011d},
+	{0x0000a0d0, 0x02030204},
+	{0x0000a0d4, 0x02010202},
+	{0x0000a0d8, 0x021f0200},
+	{0x0000a0dc, 0x0302021e},
+	{0x0000a0e0, 0x03000301},
+	{0x0000a0e4, 0x031e031f},
+	{0x0000a0e8, 0x0402031d},
+	{0x0000a0ec, 0x04000401},
+	{0x0000a0f0, 0x041e041f},
+	{0x0000a0f4, 0x0502041d},
+	{0x0000a0f8, 0x05000501},
+	{0x0000a0fc, 0x051e051f},
+	{0x0000a100, 0x06010602},
+	{0x0000a104, 0x061f0600},
+	{0x0000a108, 0x061d061e},
+	{0x0000a10c, 0x07020703},
+	{0x0000a110, 0x07000701},
+	{0x0000a114, 0x00000000},
+	{0x0000a118, 0x00000000},
+	{0x0000a11c, 0x00000000},
+	{0x0000a120, 0x00000000},
+	{0x0000a124, 0x00000000},
+	{0x0000a128, 0x00000000},
+	{0x0000a12c, 0x00000000},
+	{0x0000a130, 0x00000000},
+	{0x0000a134, 0x00000000},
+	{0x0000a138, 0x00000000},
+	{0x0000a13c, 0x00000000},
+	{0x0000a140, 0x001f0000},
+	{0x0000a144, 0x01000101},
+	{0x0000a148, 0x011e011f},
+	{0x0000a14c, 0x011c011d},
+	{0x0000a150, 0x02030204},
+	{0x0000a154, 0x02010202},
+	{0x0000a158, 0x021f0200},
+	{0x0000a15c, 0x0302021e},
+	{0x0000a160, 0x03000301},
+	{0x0000a164, 0x031e031f},
+	{0x0000a168, 0x0402031d},
+	{0x0000a16c, 0x04000401},
+	{0x0000a170, 0x041e041f},
+	{0x0000a174, 0x0502041d},
+	{0x0000a178, 0x05000501},
+	{0x0000a17c, 0x051e051f},
+	{0x0000a180, 0x06010602},
+	{0x0000a184, 0x061f0600},
+	{0x0000a188, 0x061d061e},
+	{0x0000a18c, 0x07020703},
+	{0x0000a190, 0x07000701},
+	{0x0000a194, 0x00000000},
+	{0x0000a198, 0x00000000},
+	{0x0000a19c, 0x00000000},
+	{0x0000a1a0, 0x00000000},
+	{0x0000a1a4, 0x00000000},
+	{0x0000a1a8, 0x00000000},
+	{0x0000a1ac, 0x00000000},
+	{0x0000a1b0, 0x00000000},
+	{0x0000a1b4, 0x00000000},
+	{0x0000a1b8, 0x00000000},
+	{0x0000a1bc, 0x00000000},
+	{0x0000a1c0, 0x00000000},
+	{0x0000a1c4, 0x00000000},
+	{0x0000a1c8, 0x00000000},
+	{0x0000a1cc, 0x00000000},
+	{0x0000a1d0, 0x00000000},
+	{0x0000a1d4, 0x00000000},
+	{0x0000a1d8, 0x00000000},
+	{0x0000a1dc, 0x00000000},
+	{0x0000a1e0, 0x00000000},
+	{0x0000a1e4, 0x00000000},
+	{0x0000a1e8, 0x00000000},
+	{0x0000a1ec, 0x00000000},
+	{0x0000a1f0, 0x00000396},
+	{0x0000a1f4, 0x00000396},
+	{0x0000a1f8, 0x00000396},
+	{0x0000a1fc, 0x00000196},
+	{0x0000b000, 0x00010000},
+	{0x0000b004, 0x00030002},
+	{0x0000b008, 0x00050004},
+	{0x0000b00c, 0x00810080},
+	{0x0000b010, 0x00830082},
+	{0x0000b014, 0x01810180},
+	{0x0000b018, 0x01830182},
+	{0x0000b01c, 0x01850184},
+	{0x0000b020, 0x02810280},
+	{0x0000b024, 0x02830282},
+	{0x0000b028, 0x02850284},
+	{0x0000b02c, 0x02890288},
+	{0x0000b030, 0x028b028a},
+	{0x0000b034, 0x0388028c},
+	{0x0000b038, 0x038a0389},
+	{0x0000b03c, 0x038c038b},
+	{0x0000b040, 0x0390038d},
+	{0x0000b044, 0x03920391},
+	{0x0000b048, 0x03940393},
+	{0x0000b04c, 0x03960395},
+	{0x0000b050, 0x00000000},
+	{0x0000b054, 0x00000000},
+	{0x0000b058, 0x00000000},
+	{0x0000b05c, 0x00000000},
+	{0x0000b060, 0x00000000},
+	{0x0000b064, 0x00000000},
+	{0x0000b068, 0x00000000},
+	{0x0000b06c, 0x00000000},
+	{0x0000b070, 0x00000000},
+	{0x0000b074, 0x00000000},
+	{0x0000b078, 0x00000000},
+	{0x0000b07c, 0x00000000},
+	{0x0000b080, 0x2a2d2f32},
+	{0x0000b084, 0x21232328},
+	{0x0000b088, 0x19191c1e},
+	{0x0000b08c, 0x12141417},
+	{0x0000b090, 0x07070e0e},
+	{0x0000b094, 0x03030305},
+	{0x0000b098, 0x00000003},
+	{0x0000b09c, 0x00000000},
+	{0x0000b0a0, 0x00000000},
+	{0x0000b0a4, 0x00000000},
+	{0x0000b0a8, 0x00000000},
+	{0x0000b0ac, 0x00000000},
+	{0x0000b0b0, 0x00000000},
+	{0x0000b0b4, 0x00000000},
+	{0x0000b0b8, 0x00000000},
+	{0x0000b0bc, 0x00000000},
+	{0x0000b0c0, 0x003f0020},
+	{0x0000b0c4, 0x00400041},
+	{0x0000b0c8, 0x0140005f},
+	{0x0000b0cc, 0x0160015f},
+	{0x0000b0d0, 0x017e017f},
+	{0x0000b0d4, 0x02410242},
+	{0x0000b0d8, 0x025f0240},
+	{0x0000b0dc, 0x027f0260},
+	{0x0000b0e0, 0x0341027e},
+	{0x0000b0e4, 0x035f0340},
+	{0x0000b0e8, 0x037f0360},
+	{0x0000b0ec, 0x04400441},
+	{0x0000b0f0, 0x0460045f},
+	{0x0000b0f4, 0x0541047f},
+	{0x0000b0f8, 0x055f0540},
+	{0x0000b0fc, 0x057f0560},
+	{0x0000b100, 0x06400641},
+	{0x0000b104, 0x0660065f},
+	{0x0000b108, 0x067e067f},
+	{0x0000b10c, 0x07410742},
+	{0x0000b110, 0x075f0740},
+	{0x0000b114, 0x077f0760},
+	{0x0000b118, 0x07800781},
+	{0x0000b11c, 0x07a0079f},
+	{0x0000b120, 0x07c107bf},
+	{0x0000b124, 0x000007c0},
+	{0x0000b128, 0x00000000},
+	{0x0000b12c, 0x00000000},
+	{0x0000b130, 0x00000000},
+	{0x0000b134, 0x00000000},
+	{0x0000b138, 0x00000000},
+	{0x0000b13c, 0x00000000},
+	{0x0000b140, 0x003f0020},
+	{0x0000b144, 0x00400041},
+	{0x0000b148, 0x0140005f},
+	{0x0000b14c, 0x0160015f},
+	{0x0000b150, 0x017e017f},
+	{0x0000b154, 0x02410242},
+	{0x0000b158, 0x025f0240},
+	{0x0000b15c, 0x027f0260},
+	{0x0000b160, 0x0341027e},
+	{0x0000b164, 0x035f0340},
+	{0x0000b168, 0x037f0360},
+	{0x0000b16c, 0x04400441},
+	{0x0000b170, 0x0460045f},
+	{0x0000b174, 0x0541047f},
+	{0x0000b178, 0x055f0540},
+	{0x0000b17c, 0x057f0560},
+	{0x0000b180, 0x06400641},
+	{0x0000b184, 0x0660065f},
+	{0x0000b188, 0x067e067f},
+	{0x0000b18c, 0x07410742},
+	{0x0000b190, 0x075f0740},
+	{0x0000b194, 0x077f0760},
+	{0x0000b198, 0x07800781},
+	{0x0000b19c, 0x07a0079f},
+	{0x0000b1a0, 0x07c107bf},
+	{0x0000b1a4, 0x000007c0},
+	{0x0000b1a8, 0x00000000},
+	{0x0000b1ac, 0x00000000},
+	{0x0000b1b0, 0x00000000},
+	{0x0000b1b4, 0x00000000},
+	{0x0000b1b8, 0x00000000},
+	{0x0000b1bc, 0x00000000},
+	{0x0000b1c0, 0x00000000},
+	{0x0000b1c4, 0x00000000},
+	{0x0000b1c8, 0x00000000},
+	{0x0000b1cc, 0x00000000},
+	{0x0000b1d0, 0x00000000},
+	{0x0000b1d4, 0x00000000},
+	{0x0000b1d8, 0x00000000},
+	{0x0000b1dc, 0x00000000},
+	{0x0000b1e0, 0x00000000},
+	{0x0000b1e4, 0x00000000},
+	{0x0000b1e8, 0x00000000},
+	{0x0000b1ec, 0x00000000},
+	{0x0000b1f0, 0x00000396},
+	{0x0000b1f4, 0x00000396},
+	{0x0000b1f8, 0x00000396},
+	{0x0000b1fc, 0x00000196},
+};
+
 #endif /* INITVALS_9462_2P0_H */
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index ed7d4fc..e076639 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -892,6 +892,7 @@ struct ath_hw {
 	struct ar5416IniArray iniCckfirJapan2484;
 	struct ar5416IniArray iniModes_9271_ANI_reg;
 	struct ar5416IniArray ini_radio_post_sys2ant;
+	struct ar5416IniArray ini_modes_rxgain_5g_xlna;
 
 	struct ar5416IniArray iniMac[ATH_INI_NUM_SPLIT];
 	struct ar5416IniArray iniBB[ATH_INI_NUM_SPLIT];
-- 
cgit v0.10.2


From e861ef523cd91270d108edc394e648b1f9e6fbd5 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 18 Jun 2013 10:13:43 +0530
Subject: ath9k: Modify IDs to identify CUS230

CUS198 and CUS230 are similar cards, both
are AR9485 + xLNA solutions. But, the subsystem IDs
differ - identify CUS230 explicitly to make things
clearer.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 74965ee..1a0a168 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -632,6 +632,7 @@ void ath_ant_comb_update(struct ath_softc *sc);
 /********************/
 
 #define ATH9K_PCI_CUS198 0x0001
+#define ATH9K_PCI_CUS230 0x0002
 
 /*
  * Default cache line size, in bytes.
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 7c2ed1c..0d17415 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -521,11 +521,14 @@ static void ath9k_init_platform(struct ath_softc *sc)
 	if (common->bus_ops->ath_bus_type != ATH_PCI)
 		return;
 
-	if (sc->driver_data & ATH9K_PCI_CUS198) {
+	if (sc->driver_data & (ATH9K_PCI_CUS198 |
+			       ATH9K_PCI_CUS230)) {
 		ah->config.xlna_gpio = 9;
 		ah->config.xatten_margin_cfg = true;
 
-		ath_info(common, "Set parameters for CUS198\n");
+		ath_info(common, "Set parameters for %s\n",
+			 (sc->driver_data & ATH9K_PCI_CUS198) ?
+			 "CUS198" : "CUS230");
 	}
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 4ac00b4..ddf0d78 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -51,16 +51,18 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 			 PCI_VENDOR_ID_AZWAVE,
 			 0x2126),
 	  .driver_data = ATH9K_PCI_CUS198 },
+
+	/* PCI-E CUS230 */
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 			 0x0032,
 			 PCI_VENDOR_ID_AZWAVE,
 			 0x2152),
-	  .driver_data = ATH9K_PCI_CUS198 },
+	  .driver_data = ATH9K_PCI_CUS230 },
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 			 0x0032,
 			 PCI_VENDOR_ID_FOXCONN,
 			 0xE075),
-	  .driver_data = ATH9K_PCI_CUS198 },
+	  .driver_data = ATH9K_PCI_CUS230 },
 
 	{ PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E  AR9485 */
 	{ PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E  AR9580 */
-- 
cgit v0.10.2


From 7b5d6043de31290de98e9232cbd9a07968aef5bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Tue, 18 Jun 2013 07:33:40 +0200
Subject: ssb: register serial flash as platform device
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This allows writing MTD driver working as a platform driver. In
platform_data it will receive struct ssb_sflash, which contains all
important data about flash (window, size).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/ssb/driver_chipcommon_sflash.c b/drivers/ssb/driver_chipcommon_sflash.c
index 205f1c4..e84cf04 100644
--- a/drivers/ssb/driver_chipcommon_sflash.c
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -9,6 +9,19 @@
 
 #include "ssb_private.h"
 
+static struct resource ssb_sflash_resource = {
+	.name	= "ssb_sflash",
+	.start	= SSB_FLASH2,
+	.end	= 0,
+	.flags  = IORESOURCE_MEM | IORESOURCE_READONLY,
+};
+
+struct platform_device ssb_sflash_dev = {
+	.name		= "ssb_sflash",
+	.resource	= &ssb_sflash_resource,
+	.num_resources	= 1,
+};
+
 struct ssb_sflash_tbl_e {
 	char *name;
 	u32 id;
@@ -141,6 +154,12 @@ int ssb_sflash_init(struct ssb_chipcommon *cc)
 	pr_info("Found %s serial flash (blocksize: 0x%X, blocks: %d)\n",
 		e->name, e->blocksize, e->numblocks);
 
+	/* Prepare platform device, but don't register it yet. It's too early,
+	 * malloc (required by device_private_init) is not available yet. */
+	ssb_sflash_dev.resource[0].end = ssb_sflash_dev.resource[0].start +
+					 sflash->size;
+	ssb_sflash_dev.dev.platform_data = sflash;
+
 	pr_err("Serial flash support is not implemented yet!\n");
 
 	return -ENOTSUPP;
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 812775a..e55ddf7 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -553,6 +553,14 @@ static int ssb_devices_register(struct ssb_bus *bus)
 	}
 #endif
 
+#ifdef CONFIG_SSB_SFLASH
+	if (bus->mipscore.sflash.present) {
+		err = platform_device_register(&ssb_sflash_dev);
+		if (err)
+			pr_err("Error registering serial flash\n");
+	}
+#endif
+
 	return 0;
 error:
 	/* Unwind the already registered devices. */
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index 4671f17..eb507a5 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -243,6 +243,10 @@ static inline int ssb_sflash_init(struct ssb_chipcommon *cc)
 extern struct platform_device ssb_pflash_dev;
 #endif
 
+#ifdef CONFIG_SSB_SFLASH
+extern struct platform_device ssb_sflash_dev;
+#endif
+
 #ifdef CONFIG_SSB_DRIVER_EXTIF
 extern u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks);
 extern u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
-- 
cgit v0.10.2


From e57426720f04587da79865176176f581cf79a11a Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 18 Jun 2013 10:28:46 +0300
Subject: ath10k: off by one sanity check

This should be >= ARRAY_SIZE() instead of > ARRAY_SIZE().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 8e4e832..c8e9056 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -1772,7 +1772,7 @@ static irqreturn_t ath10k_pci_per_engine_handler(int irq, void *arg)
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	int ce_id = irq - ar_pci->pdev->irq - MSI_ASSIGN_CE_INITIAL;
 
-	if (ce_id < 0 || ce_id > ARRAY_SIZE(ar_pci->pipe_info)) {
+	if (ce_id < 0 || ce_id >= ARRAY_SIZE(ar_pci->pipe_info)) {
 		ath10k_warn("unexpected/invalid irq %d ce_id %d\n", irq, ce_id);
 		return IRQ_HANDLED;
 	}
-- 
cgit v0.10.2


From 12eea64003abcb10563eaefc98ce0aeb58b05f61 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 18 Jun 2013 15:42:36 +0530
Subject: ath9k: Add PCI IDs for CUS217

CUS217 is a card based on AR9462.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 1a0a168..04b2d3e 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -633,6 +633,7 @@ void ath_ant_comb_update(struct ath_softc *sc);
 
 #define ATH9K_PCI_CUS198 0x0001
 #define ATH9K_PCI_CUS230 0x0002
+#define ATH9K_PCI_CUS217 0x0004
 
 /*
  * Default cache line size, in bytes.
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 0d17415..1e555d8 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -529,6 +529,8 @@ static void ath9k_init_platform(struct ath_softc *sc)
 		ath_info(common, "Set parameters for %s\n",
 			 (sc->driver_data & ATH9K_PCI_CUS198) ?
 			 "CUS198" : "CUS230");
+	} else if (sc->driver_data & ATH9K_PCI_CUS217) {
+		ath_info(common, "CUS217 card detected\n");
 	}
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index ddf0d78..b096bb2 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -66,6 +66,19 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 
 	{ PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E  AR9485 */
 	{ PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E  AR9580 */
+
+	/* PCI-E CUS217 */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2116),
+	  .driver_data = ATH9K_PCI_CUS217 },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 0x11AD, /* LITEON */
+			 0x6661),
+	  .driver_data = ATH9K_PCI_CUS217 },
+
 	{ PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
 	{ PCI_VDEVICE(ATHEROS, 0x0037) }, /* PCI-E  AR1111/AR9485 */
 	{ PCI_VDEVICE(ATHEROS, 0x0036) }, /* PCI-E  AR9565 */
-- 
cgit v0.10.2


From a86ff3cf47b3ba868214bfb8d2181409913ccbbe Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 18 Jun 2013 15:42:37 +0530
Subject: ath9k: Add initvals required for CUS217

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index bcd0cae..1d6b705 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -1714,4 +1714,19 @@ static const u32 ar9462_2p0_5g_xlna_only_rxgain[][2] = {
 	{0x0000b1fc, 0x00000196},
 };
 
+static const u32 ar9462_2p0_baseband_core_mix_rxgain[][2] = {
+	/* Addr      allmodes  */
+	{0x00009fd0, 0x0a2d6b93},
+};
+
+static const u32 ar9462_2p0_baseband_postamble_mix_rxgain[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00009820, 0x206a022e, 0x206a022e, 0x206a01ae, 0x206a01ae},
+	{0x00009824, 0x63c640de, 0x5ac640d0, 0x63c640da, 0x63c640da},
+	{0x00009828, 0x0796be89, 0x0696b081, 0x0916be81, 0x0916be81},
+	{0x00009e0c, 0x6c4000e2, 0x6d4000e2, 0x6d4000d8, 0x6c4000d8},
+	{0x00009e10, 0x92c88d2e, 0x7ec88d2e, 0x7ec86d2e, 0x7ec86d2e},
+	{0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3236605e, 0x32395c5e},
+};
+
 #endif /* INITVALS_9462_2P0_H */
-- 
cgit v0.10.2


From c177fabe20c60d0670bbf2fcc83440ae37fc4553 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 18 Jun 2013 15:42:38 +0530
Subject: ath9k: Program initvals for CUS217

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index ce748af..671aaa7 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -630,6 +630,10 @@ static void ar9003_rx_gain_table_mode2(struct ath_hw *ah)
 	if (AR_SREV_9462_20(ah)) {
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			       ar9462_common_mixed_rx_gain_table_2p0);
+		INIT_INI_ARRAY(&ah->ini_modes_rxgain_bb_core,
+			       ar9462_2p0_baseband_core_mix_rxgain);
+		INIT_INI_ARRAY(&ah->ini_modes_rxgain_bb_postamble,
+			       ar9462_2p0_baseband_postamble_mix_rxgain);
 		INIT_INI_ARRAY(&ah->ini_modes_rxgain_5g_xlna,
 			       ar9462_2p0_baseband_postamble_5g_xlna);
 	}
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index df919e2..df84d20 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -756,6 +756,16 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 
 	if (AR_SREV_9462_20(ah)) {
 		/*
+		 * CUS217 mix LNA mode.
+		 */
+		if (ar9003_hw_get_rx_gain_idx(ah) == 2) {
+			REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_core,
+					1, regWrites);
+			REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_postamble,
+					modesIndex, regWrites);
+		}
+
+		/*
 		 * 5G-XLNA
 		 */
 		if ((ar9003_hw_get_rx_gain_idx(ah) == 2) ||
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index e076639..cd74b3a 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -893,6 +893,8 @@ struct ath_hw {
 	struct ar5416IniArray iniModes_9271_ANI_reg;
 	struct ar5416IniArray ini_radio_post_sys2ant;
 	struct ar5416IniArray ini_modes_rxgain_5g_xlna;
+	struct ar5416IniArray ini_modes_rxgain_bb_core;
+	struct ar5416IniArray ini_modes_rxgain_bb_postamble;
 
 	struct ar5416IniArray iniMac[ATH_INI_NUM_SPLIT];
 	struct ar5416IniArray iniBB[ATH_INI_NUM_SPLIT];
-- 
cgit v0.10.2


From 7d747037b0642f6d939d6b0bb255b938b5f3c3ab Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Tue, 18 Jun 2013 13:29:22 +0200
Subject: brcmfmac: Only use credits for bcmc when firmware indicates it.

The firmware will sent an event message when bc/mc traffic should
be sent to the device using credit mechanism.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
index 6ec5db9..e679214 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
@@ -101,7 +101,8 @@ struct brcmf_event;
 	BRCMF_ENUM_DEF(P2P_PROBEREQ_MSG, 72) \
 	BRCMF_ENUM_DEF(DCS_REQUEST, 73) \
 	BRCMF_ENUM_DEF(FIFO_CREDIT_MAP, 74) \
-	BRCMF_ENUM_DEF(ACTION_FRAME_RX, 75)
+	BRCMF_ENUM_DEF(ACTION_FRAME_RX, 75) \
+	BRCMF_ENUM_DEF(BCMC_CREDIT_SUPPORT, 127)
 
 #define BRCMF_ENUM_DEF(id, val) \
 	BRCMF_E_##id = (val),
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 70f70ce..1d8fa7d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -426,6 +426,7 @@ struct brcmf_fws_info {
 	struct brcmf_fws_stats stats;
 	struct brcmf_fws_hanger hanger;
 	enum brcmf_fws_fcmode fcmode;
+	bool bcmc_credit_check;
 	struct brcmf_fws_macdesc_table desc;
 	struct workqueue_struct *fws_wq;
 	struct work_struct fws_dequeue_work;
@@ -1438,6 +1439,20 @@ static int brcmf_fws_notify_credit_map(struct brcmf_if *ifp,
 	return 0;
 }
 
+static int brcmf_fws_notify_bcmc_credit_support(struct brcmf_if *ifp,
+						const struct brcmf_event_msg *e,
+						void *data)
+{
+	struct brcmf_fws_info *fws = ifp->drvr->fws;
+	ulong flags;
+
+	brcmf_fws_lock(ifp->drvr, flags);
+	if (fws)
+		fws->bcmc_credit_check = true;
+	brcmf_fws_unlock(ifp->drvr, flags);
+	return 0;
+}
+
 int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 		      struct sk_buff *skb)
 {
@@ -1806,6 +1821,12 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 		  eh->h_dest, multicast, fifo);
 
 	brcmf_fws_lock(drvr, flags);
+	/* multicast credit support is conditional, setting
+	 * flag to false to assure credit is consumed below.
+	 */
+	if (fws->bcmc_credit_check)
+		multicast = false;
+
 	if (skcb->mac->suppressed ||
 	    fws->bus_flow_blocked ||
 	    brcmf_fws_mac_desc_closed(fws, skcb->mac, fifo) ||
@@ -1878,7 +1899,8 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 	brcmf_fws_lock(fws->drvr, flags);
 	for (fifo = NL80211_NUM_ACS; fifo >= 0 && !fws->bus_flow_blocked;
 	     fifo--) {
-		while (fws->fifo_credit[fifo]) {
+		while ((fws->fifo_credit[fifo]) || ((!fws->bcmc_credit_check) &&
+		       (fifo == BRCMF_FWS_FIFO_BCMC))) {
 			skb = brcmf_fws_deq(fws, fifo);
 			if (!skb)
 				break;
@@ -1947,6 +1969,13 @@ int brcmf_fws_init(struct brcmf_pub *drvr)
 		brcmf_err("register credit map handler failed\n");
 		goto fail;
 	}
+	rc = brcmf_fweh_register(drvr, BRCMF_E_BCMC_CREDIT_SUPPORT,
+				 brcmf_fws_notify_bcmc_credit_support);
+	if (rc < 0) {
+		brcmf_err("register bcmc credit handler failed\n");
+		brcmf_fweh_unregister(drvr, BRCMF_E_FIFO_CREDIT_MAP);
+		goto fail;
+	}
 
 	/* setting the iovar may fail if feature is unsupported
 	 * so leave the rc as is so driver initialization can
@@ -1971,6 +2000,7 @@ int brcmf_fws_init(struct brcmf_pub *drvr)
 	return 0;
 
 fail_event:
+	brcmf_fweh_unregister(drvr, BRCMF_E_BCMC_CREDIT_SUPPORT);
 	brcmf_fweh_unregister(drvr, BRCMF_E_FIFO_CREDIT_MAP);
 fail:
 	brcmf_fws_deinit(drvr);
-- 
cgit v0.10.2


From 4e89dfca87ae5a97c616c6ac9b2a9a15cc28903d Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 18 Jun 2013 13:29:23 +0200
Subject: brcmfmac: rename variable prec to more appropriate name, ie. fifo

The term prec (precedence) is different from the fifo number. Rename
use of prec with fifo to be consistent and clear.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 1d8fa7d..e66b723 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -839,7 +839,7 @@ static int brcmf_fws_hdrpush(struct brcmf_fws_info *fws, struct sk_buff *skb)
 
 static bool brcmf_fws_tim_update(struct brcmf_fws_info *fws,
 				 struct brcmf_fws_mac_descriptor *entry,
-				 int prec, bool send_immediately)
+				 int fifo, bool send_immediately)
 {
 	struct sk_buff *skb;
 	struct brcmf_bus *bus;
@@ -848,10 +848,10 @@ static bool brcmf_fws_tim_update(struct brcmf_fws_info *fws,
 	u32 len;
 
 	/* check delayedQ and suppressQ in one call using bitmap */
-	if (brcmu_pktq_mlen(&entry->psq, 3 << (prec * 2)) == 0)
-		entry->traffic_pending_bmp &= ~NBITVAL(prec);
+	if (brcmu_pktq_mlen(&entry->psq, 3 << (fifo * 2)) == 0)
+		entry->traffic_pending_bmp &= ~NBITVAL(fifo);
 	else
-		entry->traffic_pending_bmp |= NBITVAL(prec);
+		entry->traffic_pending_bmp |= NBITVAL(fifo);
 
 	entry->send_tim_signal = false;
 	if (entry->traffic_lastreported_bmp != entry->traffic_pending_bmp)
-- 
cgit v0.10.2


From ae66460989f1dd62da760c6123820d9741315260 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 18 Jun 2013 13:29:24 +0200
Subject: brcmfmac: remove dependency with nl80211.h

The firmware-signalling code used NL80211_NUM_ACS, but it has
its own definition enum brcmf_fws_fifo, which is more appropriate
to use. This effectively removes the need to include nl80211.h.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index e66b723..b702f3e 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -22,7 +22,6 @@
 #include <linux/etherdevice.h>
 #include <linux/err.h>
 #include <linux/jiffies.h>
-#include <uapi/linux/nl80211.h>
 #include <net/cfg80211.h>
 
 #include <brcmu_utils.h>
@@ -142,7 +141,7 @@ static const char *brcmf_fws_get_tlv_name(enum brcmf_fws_tlv_type id)
 #define BRCMF_FWS_FLOWCONTROL_HIWATER			128
 #define BRCMF_FWS_FLOWCONTROL_LOWATER			64
 
-#define BRCMF_FWS_PSQ_PREC_COUNT		((NL80211_NUM_ACS + 1) * 2)
+#define BRCMF_FWS_PSQ_PREC_COUNT		((BRCMF_FWS_FIFO_COUNT + 1) * 2)
 #define BRCMF_FWS_PSQ_LEN				256
 
 #define BRCMF_FWS_HTOD_FLAG_PKTFROMHOST			0x01
-- 
cgit v0.10.2


From 1ab083a3752760ec7751a7fa43db555d2d6f1e6a Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 18 Jun 2013 13:29:25 +0200
Subject: brcmfmac: consolidate mac_descriptor related function names

Just cleaning up and being consistent in naming operations
related to struct brcmf_fws_mac_descriptor objects.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index b702f3e..13e75c4 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -631,8 +631,8 @@ static void brcmf_fws_macdesc_set_name(struct brcmf_fws_info *fws,
 			  desc->interface_id);
 }
 
-static void brcmf_fws_init_mac_descriptor(struct brcmf_fws_mac_descriptor *desc,
-					  u8 *addr, u8 ifidx)
+static void brcmf_fws_macdesc_init(struct brcmf_fws_mac_descriptor *desc,
+				   u8 *addr, u8 ifidx)
 {
 	brcmf_dbg(TRACE,
 		  "enter: desc %p ea=%pM, ifidx=%u\n", desc, addr, ifidx);
@@ -648,7 +648,7 @@ static void brcmf_fws_init_mac_descriptor(struct brcmf_fws_mac_descriptor *desc,
 }
 
 static
-void brcmf_fws_clear_mac_descriptor(struct brcmf_fws_mac_descriptor *desc)
+void brcmf_fws_macdesc_deinit(struct brcmf_fws_mac_descriptor *desc)
 {
 	brcmf_dbg(TRACE,
 		  "enter: ea=%pM, ifidx=%u\n", desc->ea, desc->interface_id);
@@ -659,7 +659,7 @@ void brcmf_fws_clear_mac_descriptor(struct brcmf_fws_mac_descriptor *desc)
 }
 
 static struct brcmf_fws_mac_descriptor *
-brcmf_fws_mac_descriptor_lookup(struct brcmf_fws_info *fws, u8 *ea)
+brcmf_fws_macdesc_lookup(struct brcmf_fws_info *fws, u8 *ea)
 {
 	struct brcmf_fws_mac_descriptor *entry;
 	int i;
@@ -678,8 +678,7 @@ brcmf_fws_mac_descriptor_lookup(struct brcmf_fws_info *fws, u8 *ea)
 }
 
 static struct brcmf_fws_mac_descriptor*
-brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, struct brcmf_if *ifp,
-			u8 *da)
+brcmf_fws_macdesc_find(struct brcmf_fws_info *fws, struct brcmf_if *ifp, u8 *da)
 {
 	struct brcmf_fws_mac_descriptor *entry = &fws->desc.other;
 	bool multicast;
@@ -695,7 +694,7 @@ brcmf_fws_find_mac_desc(struct brcmf_fws_info *fws, struct brcmf_if *ifp,
 		goto done;
 	}
 
-	entry = brcmf_fws_mac_descriptor_lookup(fws, da);
+	entry = brcmf_fws_macdesc_lookup(fws, da);
 	if (IS_ERR(entry))
 		entry = ifp->fws_desc;
 
@@ -703,9 +702,9 @@ done:
 	return entry;
 }
 
-static bool brcmf_fws_mac_desc_closed(struct brcmf_fws_info *fws,
-				      struct brcmf_fws_mac_descriptor *entry,
-				      int fifo)
+static bool brcmf_fws_macdesc_closed(struct brcmf_fws_info *fws,
+				     struct brcmf_fws_mac_descriptor *entry,
+				     int fifo)
 {
 	struct brcmf_fws_mac_descriptor *if_entry;
 	bool closed;
@@ -728,9 +727,9 @@ static bool brcmf_fws_mac_desc_closed(struct brcmf_fws_info *fws,
 	return closed || !(entry->ac_bitmap & BIT(fifo));
 }
 
-static void brcmf_fws_mac_desc_cleanup(struct brcmf_fws_info *fws,
-				       struct brcmf_fws_mac_descriptor *entry,
-				       int ifidx)
+static void brcmf_fws_macdesc_cleanup(struct brcmf_fws_info *fws,
+				      struct brcmf_fws_mac_descriptor *entry,
+				      int ifidx)
 {
 	if (entry->occupied && (ifidx == -1 || ifidx == entry->interface_id)) {
 		brcmf_fws_psq_flush(fws, &entry->psq, ifidx);
@@ -782,9 +781,9 @@ static void brcmf_fws_cleanup(struct brcmf_fws_info *fws, int ifidx)
 	/* cleanup individual nodes */
 	table = &fws->desc.nodes[0];
 	for (i = 0; i < ARRAY_SIZE(fws->desc.nodes); i++)
-		brcmf_fws_mac_desc_cleanup(fws, &table[i], ifidx);
+		brcmf_fws_macdesc_cleanup(fws, &table[i], ifidx);
 
-	brcmf_fws_mac_desc_cleanup(fws, &fws->desc.other, ifidx);
+	brcmf_fws_macdesc_cleanup(fws, &fws->desc.other, ifidx);
 	brcmf_fws_bus_txq_cleanup(fws, matchfn, ifidx);
 	brcmf_fws_hanger_cleanup(fws, matchfn, ifidx);
 }
@@ -924,18 +923,18 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
 		if (entry->occupied) {
 			brcmf_dbg(TRACE, "deleting %s mac %pM\n",
 				  entry->name, addr);
-			brcmf_fws_mac_desc_cleanup(fws, entry, -1);
-			brcmf_fws_clear_mac_descriptor(entry);
+			brcmf_fws_macdesc_cleanup(fws, entry, -1);
+			brcmf_fws_macdesc_deinit(entry);
 		} else
 			fws->stats.mac_update_failed++;
 		return 0;
 	}
 
-	existing = brcmf_fws_mac_descriptor_lookup(fws, addr);
+	existing = brcmf_fws_macdesc_lookup(fws, addr);
 	if (IS_ERR(existing)) {
 		if (!entry->occupied) {
 			entry->mac_handle = mac_handle;
-			brcmf_fws_init_mac_descriptor(entry, addr, ifidx);
+			brcmf_fws_macdesc_init(entry, addr, ifidx);
 			brcmf_fws_macdesc_set_name(fws, entry);
 			brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
 					BRCMF_FWS_PSQ_LEN);
@@ -949,7 +948,7 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
 			memcpy(entry, existing,
 			       offsetof(struct brcmf_fws_mac_descriptor, psq));
 			entry->mac_handle = mac_handle;
-			brcmf_fws_clear_mac_descriptor(existing);
+			brcmf_fws_macdesc_deinit(existing);
 			brcmf_fws_macdesc_set_name(fws, entry);
 			brcmf_dbg(TRACE, "relocate %s mac %pM\n", entry->name,
 				  addr);
@@ -1189,7 +1188,7 @@ static struct sk_buff *brcmf_fws_deq(struct brcmf_fws_info *fws, int fifo)
 	for (i = 0; i < num_nodes; i++) {
 		entry = &table[(node_pos + i) % num_nodes];
 		if (!entry->occupied ||
-		    brcmf_fws_mac_desc_closed(fws, entry, fifo))
+		    brcmf_fws_macdesc_closed(fws, entry, fifo))
 			continue;
 
 		if (entry->suppressed)
@@ -1810,7 +1809,7 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 
 	/* set control buffer information */
 	skcb->if_flags = 0;
-	skcb->mac = brcmf_fws_find_mac_desc(fws, ifp, eh->h_dest);
+	skcb->mac = brcmf_fws_macdesc_find(fws, ifp, eh->h_dest);
 	skcb->state = BRCMF_FWS_SKBSTATE_NEW;
 	brcmf_skb_if_flags_set_field(skb, INDEX, ifp->ifidx);
 	if (!multicast)
@@ -1828,7 +1827,7 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 
 	if (skcb->mac->suppressed ||
 	    fws->bus_flow_blocked ||
-	    brcmf_fws_mac_desc_closed(fws, skcb->mac, fifo) ||
+	    brcmf_fws_macdesc_closed(fws, skcb->mac, fifo) ||
 	    brcmu_pktq_mlen(&skcb->mac->psq, 3 << (fifo * 2)) ||
 	    (!multicast &&
 	     brcmf_fws_consume_credit(fws, fifo, skb) < 0)) {
@@ -1850,7 +1849,7 @@ void brcmf_fws_reset_interface(struct brcmf_if *ifp)
 	if (!entry)
 		return;
 
-	brcmf_fws_init_mac_descriptor(entry, ifp->mac_addr, ifp->ifidx);
+	brcmf_fws_macdesc_init(entry, ifp->mac_addr, ifp->ifidx);
 }
 
 void brcmf_fws_add_interface(struct brcmf_if *ifp)
@@ -1863,7 +1862,7 @@ void brcmf_fws_add_interface(struct brcmf_if *ifp)
 
 	entry = &fws->desc.iface[ifp->ifidx];
 	ifp->fws_desc = entry;
-	brcmf_fws_init_mac_descriptor(entry, ifp->mac_addr, ifp->ifidx);
+	brcmf_fws_macdesc_init(entry, ifp->mac_addr, ifp->ifidx);
 	brcmf_fws_macdesc_set_name(fws, entry);
 	brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
 			BRCMF_FWS_PSQ_LEN);
@@ -1881,7 +1880,7 @@ void brcmf_fws_del_interface(struct brcmf_if *ifp)
 	brcmf_fws_lock(ifp->drvr, flags);
 	ifp->fws_desc = NULL;
 	brcmf_dbg(TRACE, "deleting %s\n", entry->name);
-	brcmf_fws_clear_mac_descriptor(entry);
+	brcmf_fws_macdesc_deinit(entry);
 	brcmf_fws_cleanup(ifp->drvr->fws, ifp->ifidx);
 	brcmf_fws_unlock(ifp->drvr, flags);
 }
@@ -1986,7 +1985,7 @@ int brcmf_fws_init(struct brcmf_pub *drvr)
 	}
 
 	brcmf_fws_hanger_init(&drvr->fws->hanger);
-	brcmf_fws_init_mac_descriptor(&drvr->fws->desc.other, NULL, 0);
+	brcmf_fws_macdesc_init(&drvr->fws->desc.other, NULL, 0);
 	brcmf_fws_macdesc_set_name(drvr->fws, &drvr->fws->desc.other);
 	brcmu_pktq_init(&drvr->fws->desc.other.psq, BRCMF_FWS_PSQ_PREC_COUNT,
 			BRCMF_FWS_PSQ_LEN);
-- 
cgit v0.10.2


From fccfe93036312f3ad35d37c2ca960f104c6e7f21 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 18 Jun 2013 13:29:26 +0200
Subject: brcmfmac: simplify dpc handling using atomic operations

Instead of allocating an empty list item and queue that for
the dpc data worker to dequeue an atomic counter is used.

Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 6f3d181..d4db0c7 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -495,8 +495,7 @@ struct brcmf_sdio {
 
 	struct workqueue_struct *brcmf_wq;
 	struct work_struct datawork;
-	struct list_head dpc_tsklst;
-	spinlock_t dpc_tl_lock;
+	atomic_t dpc_tskcnt;
 
 	const struct firmware *firmware;
 	u32 fw_ptr;
@@ -2061,23 +2060,6 @@ static inline void brcmf_sdbrcm_clrintr(struct brcmf_sdio *bus)
 	}
 }
 
-static inline void brcmf_sdbrcm_adddpctsk(struct brcmf_sdio *bus)
-{
-	struct list_head *new_hd;
-	unsigned long flags;
-
-	if (in_interrupt())
-		new_hd = kzalloc(sizeof(struct list_head), GFP_ATOMIC);
-	else
-		new_hd = kzalloc(sizeof(struct list_head), GFP_KERNEL);
-	if (new_hd == NULL)
-		return;
-
-	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-	list_add_tail(new_hd, &bus->dpc_tsklst);
-	spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
-}
-
 static int brcmf_sdio_intr_rstatus(struct brcmf_sdio *bus)
 {
 	u8 idx;
@@ -2312,7 +2294,7 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus)
 		   (!atomic_read(&bus->fcstate) &&
 		    brcmu_pktq_mlen(&bus->txq, ~bus->flowcontrol) &&
 		    data_ok(bus)) || PKT_AVAILABLE()) {
-		brcmf_sdbrcm_adddpctsk(bus);
+		atomic_inc(&bus->dpc_tskcnt);
 	}
 
 	/* If we're done for now, turn off clock request. */
@@ -2342,7 +2324,6 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 	struct brcmf_sdio *bus = sdiodev->bus;
-	unsigned long flags;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
@@ -2381,14 +2362,9 @@ static int brcmf_sdbrcm_bus_txdata(struct device *dev, struct sk_buff *pkt)
 		qcount[prec] = pktq_plen(&bus->txq, prec);
 #endif
 
-	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-	if (list_empty(&bus->dpc_tsklst)) {
-		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
-
-		brcmf_sdbrcm_adddpctsk(bus);
+	if (atomic_read(&bus->dpc_tskcnt) == 0) {
+		atomic_inc(&bus->dpc_tskcnt);
 		queue_work(bus->brcmf_wq, &bus->datawork);
-	} else {
-		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
 	}
 
 	return ret;
@@ -2525,7 +2501,6 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 	struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 	struct brcmf_sdio *bus = sdiodev->bus;
-	unsigned long flags;
 
 	brcmf_dbg(TRACE, "Enter\n");
 
@@ -2612,18 +2587,13 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen)
 		} while (ret < 0 && retries++ < TXRETRIES);
 	}
 
-	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
 	if ((bus->idletime == BRCMF_IDLE_IMMEDIATE) &&
-	    list_empty(&bus->dpc_tsklst)) {
-		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
-
+	    atomic_read(&bus->dpc_tskcnt) == 0) {
 		bus->activity = false;
 		sdio_claim_host(bus->sdiodev->func[1]);
 		brcmf_dbg(INFO, "idle\n");
 		brcmf_sdbrcm_clkctl(bus, CLK_NONE, true);
 		sdio_release_host(bus->sdiodev->func[1]);
-	} else {
-		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
 	}
 
 	if (ret)
@@ -3451,7 +3421,7 @@ void brcmf_sdbrcm_isr(void *arg)
 	if (!bus->intr)
 		brcmf_err("isr w/o interrupt configured!\n");
 
-	brcmf_sdbrcm_adddpctsk(bus);
+	atomic_inc(&bus->dpc_tskcnt);
 	queue_work(bus->brcmf_wq, &bus->datawork);
 }
 
@@ -3460,7 +3430,6 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 #ifdef DEBUG
 	struct brcmf_bus *bus_if = dev_get_drvdata(bus->sdiodev->dev);
 #endif	/* DEBUG */
-	unsigned long flags;
 
 	brcmf_dbg(TIMER, "Enter\n");
 
@@ -3476,11 +3445,9 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 		if (!bus->intr ||
 		    (bus->sdcnt.intrcount == bus->sdcnt.lastintrs)) {
 
-			spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-			if (list_empty(&bus->dpc_tsklst)) {
+			if (atomic_read(&bus->dpc_tskcnt) == 0) {
 				u8 devpend;
-				spin_unlock_irqrestore(&bus->dpc_tl_lock,
-						       flags);
+
 				sdio_claim_host(bus->sdiodev->func[1]);
 				devpend = brcmf_sdio_regrb(bus->sdiodev,
 							   SDIO_CCCR_INTx,
@@ -3489,9 +3456,6 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 				intstatus =
 				    devpend & (INTR_STATUS_FUNC1 |
 					       INTR_STATUS_FUNC2);
-			} else {
-				spin_unlock_irqrestore(&bus->dpc_tl_lock,
-						       flags);
 			}
 
 			/* If there is something, make like the ISR and
@@ -3500,7 +3464,7 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 				bus->sdcnt.pollcnt++;
 				atomic_set(&bus->ipend, 1);
 
-				brcmf_sdbrcm_adddpctsk(bus);
+				atomic_inc(&bus->dpc_tskcnt);
 				queue_work(bus->brcmf_wq, &bus->datawork);
 			}
 		}
@@ -3566,20 +3530,11 @@ static void brcmf_sdio_dataworker(struct work_struct *work)
 {
 	struct brcmf_sdio *bus = container_of(work, struct brcmf_sdio,
 					      datawork);
-	struct list_head *cur_hd, *tmp_hd;
-	unsigned long flags;
-
-	spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-	list_for_each_safe(cur_hd, tmp_hd, &bus->dpc_tsklst) {
-		spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
 
+	while (atomic_read(&bus->dpc_tskcnt)) {
 		brcmf_sdbrcm_dpc(bus);
-
-		spin_lock_irqsave(&bus->dpc_tl_lock, flags);
-		list_del(cur_hd);
-		kfree(cur_hd);
+		atomic_dec(&bus->dpc_tskcnt);
 	}
-	spin_unlock_irqrestore(&bus->dpc_tl_lock, flags);
 }
 
 static void brcmf_sdbrcm_release_malloc(struct brcmf_sdio *bus)
@@ -3927,8 +3882,7 @@ void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev)
 		bus->watchdog_tsk = NULL;
 	}
 	/* Initialize DPC thread */
-	INIT_LIST_HEAD(&bus->dpc_tsklst);
-	spin_lock_init(&bus->dpc_tl_lock);
+	atomic_set(&bus->dpc_tskcnt, 0);
 
 	/* Assign bus interface call back */
 	bus->sdiodev->bus_if->dev = bus->sdiodev->dev;
-- 
cgit v0.10.2


From 16035d51b3e49e6e90b2e324feb437ed7893b045 Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Tue, 18 Jun 2013 13:29:27 +0200
Subject: brcmfmac: remove redundant chip ID check in dhd_sdio

There is an ID table registered to SDIO stack which consists of all SDIO devices
supported by brcmfmac. It is not necessary to have an extra check.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index d4db0c7..cb22f2f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -3509,23 +3509,6 @@ static bool brcmf_sdbrcm_bus_watchdog(struct brcmf_sdio *bus)
 	return (atomic_read(&bus->ipend) > 0);
 }
 
-static bool brcmf_sdbrcm_chipmatch(u16 chipid)
-{
-	if (chipid == BCM43143_CHIP_ID)
-		return true;
-	if (chipid == BCM43241_CHIP_ID)
-		return true;
-	if (chipid == BCM4329_CHIP_ID)
-		return true;
-	if (chipid == BCM4330_CHIP_ID)
-		return true;
-	if (chipid == BCM4334_CHIP_ID)
-		return true;
-	if (chipid == BCM4335_CHIP_ID)
-		return true;
-	return false;
-}
-
 static void brcmf_sdio_dataworker(struct work_struct *work)
 {
 	struct brcmf_sdio *bus = container_of(work, struct brcmf_sdio,
@@ -3622,11 +3605,6 @@ brcmf_sdbrcm_probe_attach(struct brcmf_sdio *bus, u32 regsva)
 		goto fail;
 	}
 
-	if (!brcmf_sdbrcm_chipmatch((u16) bus->ci->chip)) {
-		brcmf_err("unsupported chip: 0x%04x\n", bus->ci->chip);
-		goto fail;
-	}
-
 	if (brcmf_sdbrcm_kso_init(bus)) {
 		brcmf_err("error enabling KSO\n");
 		goto fail;
-- 
cgit v0.10.2


From 78b3f1c5be8fdb3c83d21a357b1f8e89f5e18a6b Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Tue, 18 Jun 2013 13:29:28 +0200
Subject: brcmfmac: replace brcmf_sdioh_request_buffer with brcmf_sdio_buffrw

Introducing a new SDIO block data access interface function
brcmf_sdio_buffrw. It will act as a unified interface function for any block
data access to WiFi dongle through SDIO interface. This patch enables
the support for single skb transmission.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 4891e3d..32a205e 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -303,6 +303,49 @@ void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
 		*ret = retval;
 }
 
+/**
+ * brcmf_sdio_buffrw - SDIO interface function for block data access
+ * @sdiodev: brcmfmac sdio device
+ * @fn: SDIO function number
+ * @write: direction flag
+ * @addr: dongle memory address as source/destination
+ * @pkt: skb pointer
+ *
+ * This function takes the respbonsibility as the interface function to MMC
+ * stack for block data access. It assumes that the skb passed down by the
+ * caller has already been padded and aligned.
+ */
+static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
+			     bool write, u32 addr, struct sk_buff *pkt)
+{
+	uint len;
+
+	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
+	if (brcmf_pm_resume_error(sdiodev))
+		return -EIO;
+
+	/* Single skb use the standard mmc interface */
+	if (!pkt->next) {
+		len = pkt->len + 3;
+		len &= (uint)~3;
+
+		if (write)
+			return sdio_memcpy_toio(sdiodev->func[fn], addr,
+						((u8 *)(pkt->data)), len);
+		else if (fn == 1)
+			return sdio_memcpy_fromio(sdiodev->func[fn],
+						  ((u8 *)(pkt->data)), addr,
+						  len);
+		else
+			/* function 2 read is FIFO operation */
+			return sdio_readsb(sdiodev->func[fn],
+					   ((u8 *)(pkt->data)), addr, len);
+	}
+
+	brcmf_err("skb chain is not supported yet.\n");
+	return -EOPNOTSUPP;
+}
+
 static int brcmf_sdcard_recv_prepare(struct brcmf_sdio_dev *sdiodev, uint fn,
 				     uint flags, uint width, u32 *addr)
 {
@@ -355,7 +398,6 @@ int
 brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, struct sk_buff *pkt)
 {
-	uint incr_fix;
 	uint width;
 	int err = 0;
 
@@ -367,9 +409,7 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (err)
 		goto done;
 
-	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
-	err = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_READ,
-					 fn, addr, pkt);
+	err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, pkt);
 
 done:
 	return err;
@@ -424,7 +464,6 @@ int
 brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, struct sk_buff *pkt)
 {
-	uint incr_fix;
 	uint width;
 	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
 	int err = 0;
@@ -446,13 +485,11 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 
 	addr &= SBSDIO_SB_OFT_ADDR_MASK;
 
-	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
 	if (width == 4)
 		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
 
-	err = brcmf_sdioh_request_buffer(sdiodev, incr_fix, SDIOH_WRITE, fn,
-					 addr, pkt);
+	err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, pkt);
 
 done:
 	return err;
@@ -501,9 +538,8 @@ brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
 		skb_put(pkt, dsize);
 		if (write)
 			memcpy(pkt->data, data, dsize);
-		bcmerror = brcmf_sdioh_request_buffer(sdiodev, SDIOH_DATA_INC,
-						      write, SDIO_FUNC_1,
-						      sdaddr, pkt);
+		bcmerror = brcmf_sdio_buffrw(sdiodev, SDIO_FUNC_1, write,
+					     sdaddr, pkt);
 		if (bcmerror) {
 			brcmf_err("membytes transfer failed\n");
 			break;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 11400b3..7a3c5bf 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -66,7 +66,7 @@ MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
 static struct brcmfmac_sdio_platform_data *brcmfmac_sdio_pdata;
 
 
-static bool
+bool
 brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
 {
 	bool is_err = false;
@@ -76,7 +76,7 @@ brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
 	return is_err;
 }
 
-static void
+void
 brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq)
 {
 #ifdef CONFIG_PM_SLEEP
@@ -283,43 +283,6 @@ brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 	return err_ret;
 }
 
-/*
- * This function takes a single DMA-able packet.
- */
-int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
-			       uint fix_inc, uint write, uint func, uint addr,
-			       struct sk_buff *pkt)
-{
-	int status;
-	uint pkt_len;
-	bool fifo = (fix_inc == SDIOH_DATA_FIX);
-
-	brcmf_dbg(SDIO, "Enter\n");
-
-	if (pkt == NULL)
-		return -EINVAL;
-	pkt_len = pkt->len;
-
-	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
-	if (brcmf_pm_resume_error(sdiodev))
-		return -EIO;
-
-	pkt_len += 3;
-	pkt_len &= (uint)~3;
-
-	status = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
-					   addr, pkt, pkt_len);
-	if (status) {
-		brcmf_err("%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
-			  write ? "TX" : "RX", pkt, addr, pkt_len, status);
-	} else {
-		brcmf_dbg(SDIO, "%s xfr'd %p, addr=0x%05x, len=%d\n",
-			  write ? "TX" : "RX", pkt, addr, pkt_len);
-	}
-
-	return status;
-}
-
 static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr)
 {
 	/* read 24 bits and return valid 17 bit addr */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 7c1b633..991c1501 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -274,10 +274,6 @@ brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 
 /* read or write any buffer using cmd53 */
 extern int
-brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
-			   uint fix_inc, uint rw, uint fnc_num, u32 addr,
-			   struct sk_buff *pkt);
-extern int
 brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 			  uint write, uint func, uint addr,
 			  struct sk_buff_head *pktq);
@@ -291,4 +287,8 @@ extern void brcmf_sdbrcm_disconnect(void *ptr);
 extern void brcmf_sdbrcm_isr(void *arg);
 
 extern void brcmf_sdbrcm_wd_timer(struct brcmf_sdio *bus, uint wdtick);
+
+extern void brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev,
+				 wait_queue_head_t *wq);
+extern bool brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev);
 #endif				/* _BRCM_SDH_H_ */
-- 
cgit v0.10.2


From 354b75bfdbef02739af39acdbf804549c4626816 Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Tue, 18 Jun 2013 13:29:29 +0200
Subject: brcmfmac: add sdio sg list support

Add scatter gather list support for better rx glom performance.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 32a205e..3f8e69c 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -22,9 +22,11 @@
 #include <linux/pci_ids.h>
 #include <linux/sched.h>
 #include <linux/completion.h>
+#include <linux/scatterlist.h>
 #include <linux/mmc/sdio.h>
 #include <linux/mmc/sdio_func.h>
 #include <linux/mmc/card.h>
+#include <linux/mmc/host.h>
 #include <linux/platform_data/brcmfmac-sdio.h>
 
 #include <defs.h>
@@ -316,34 +318,138 @@ void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
  * caller has already been padded and aligned.
  */
 static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
-			     bool write, u32 addr, struct sk_buff *pkt)
+			     bool write, u32 addr, struct sk_buff_head *pktlist)
 {
-	uint len;
+	unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset;
+	unsigned int max_blks, max_req_sz;
+	unsigned short max_seg_sz, seg_sz;
+	unsigned char *pkt_data;
+	struct sk_buff *pkt_next = NULL;
+	struct mmc_request mmc_req;
+	struct mmc_command mmc_cmd;
+	struct mmc_data mmc_dat;
+	struct sg_table st;
+	struct scatterlist *sgl;
+	struct mmc_host *host;
+	int ret = 0;
+
+	if (!pktlist->qlen)
+		return -EINVAL;
 
 	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
 	if (brcmf_pm_resume_error(sdiodev))
 		return -EIO;
 
 	/* Single skb use the standard mmc interface */
-	if (!pkt->next) {
-		len = pkt->len + 3;
-		len &= (uint)~3;
+	if (pktlist->qlen == 1) {
+		pkt_next = pktlist->next;
+		req_sz = pkt_next->len + 3;
+		req_sz &= (uint)~3;
 
 		if (write)
 			return sdio_memcpy_toio(sdiodev->func[fn], addr,
-						((u8 *)(pkt->data)), len);
+						((u8 *)(pkt_next->data)),
+						req_sz);
 		else if (fn == 1)
 			return sdio_memcpy_fromio(sdiodev->func[fn],
-						  ((u8 *)(pkt->data)), addr,
-						  len);
+						  ((u8 *)(pkt_next->data)),
+						  addr, req_sz);
 		else
 			/* function 2 read is FIFO operation */
 			return sdio_readsb(sdiodev->func[fn],
-					   ((u8 *)(pkt->data)), addr, len);
+					   ((u8 *)(pkt_next->data)), addr,
+					   req_sz);
 	}
 
-	brcmf_err("skb chain is not supported yet.\n");
-	return -EOPNOTSUPP;
+	host = sdiodev->func[fn]->card->host;
+	func_blk_sz = sdiodev->func[fn]->cur_blksize;
+	/* Blocks per command is limited by host count, host transfer
+	 * size and the maximum for IO_RW_EXTENDED of 511 blocks.
+	 */
+	max_blks = min_t(unsigned int, host->max_blk_count, 511u);
+	max_req_sz = min_t(unsigned int, host->max_req_size,
+			   max_blks * func_blk_sz);
+	max_seg_sz = min_t(unsigned short, host->max_segs, SG_MAX_SINGLE_ALLOC);
+	max_seg_sz = min_t(unsigned short, max_seg_sz, pktlist->qlen);
+	seg_sz = pktlist->qlen;
+	pkt_offset = 0;
+	pkt_next = pktlist->next;
+
+	if (sg_alloc_table(&st, max_seg_sz, GFP_KERNEL))
+		return -ENOMEM;
+
+	while (seg_sz) {
+		req_sz = 0;
+		sg_cnt = 0;
+		memset(&mmc_req, 0, sizeof(struct mmc_request));
+		memset(&mmc_cmd, 0, sizeof(struct mmc_command));
+		memset(&mmc_dat, 0, sizeof(struct mmc_data));
+		sgl = st.sgl;
+		/* prep sg table */
+		while (pkt_next != (struct sk_buff *)pktlist) {
+			pkt_data = pkt_next->data + pkt_offset;
+			sg_data_sz = pkt_next->len - pkt_offset;
+			if (sg_data_sz > host->max_seg_size)
+				sg_data_sz = host->max_seg_size;
+			if (sg_data_sz > max_req_sz - req_sz)
+				sg_data_sz = max_req_sz - req_sz;
+
+			sg_set_buf(sgl, pkt_data, sg_data_sz);
+
+			sg_cnt++;
+			sgl = sg_next(sgl);
+			req_sz += sg_data_sz;
+			pkt_offset += sg_data_sz;
+			if (pkt_offset == pkt_next->len) {
+				pkt_offset = 0;
+				pkt_next = pkt_next->next;
+			}
+
+			if (req_sz >= max_req_sz || sg_cnt >= max_seg_sz)
+				break;
+		}
+		seg_sz -= sg_cnt;
+
+		if (req_sz % func_blk_sz != 0) {
+			brcmf_err("sg request length %u is not %u aligned\n",
+				  req_sz, func_blk_sz);
+			sg_free_table(&st);
+			return -ENOTBLK;
+		}
+		mmc_dat.sg = st.sgl;
+		mmc_dat.sg_len = sg_cnt;
+		mmc_dat.blksz = func_blk_sz;
+		mmc_dat.blocks = req_sz / func_blk_sz;
+		mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
+		mmc_cmd.opcode = SD_IO_RW_EXTENDED;
+		mmc_cmd.arg = write ? 1<<31 : 0;	/* write flag  */
+		mmc_cmd.arg |= (fn & 0x7) << 28;	/* SDIO func num */
+		mmc_cmd.arg |= 1<<27;			/* block mode */
+		/* incrementing addr for function 1 */
+		mmc_cmd.arg |= (fn == 1) ? 1<<26 : 0;
+		mmc_cmd.arg |= (addr & 0x1FFFF) << 9;	/* address */
+		mmc_cmd.arg |= mmc_dat.blocks & 0x1FF;	/* block count */
+		mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC;
+		mmc_req.cmd = &mmc_cmd;
+		mmc_req.data = &mmc_dat;
+		if (fn == 1)
+			addr += req_sz;
+
+		mmc_set_data_timeout(&mmc_dat, sdiodev->func[fn]->card);
+		mmc_wait_for_req(host, &mmc_req);
+
+		ret = mmc_cmd.error ? mmc_cmd.error : mmc_dat.error;
+		if (ret != 0) {
+			brcmf_err("CMD53 sg block %s failed %d\n",
+				  write ? "write" : "read", ret);
+			ret = -EIO;
+			break;
+		}
+	}
+
+	sg_free_table(&st);
+
+	return ret;
 }
 
 static int brcmf_sdcard_recv_prepare(struct brcmf_sdio_dev *sdiodev, uint fn,
@@ -400,6 +506,7 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 {
 	uint width;
 	int err = 0;
+	struct sk_buff_head pkt_list;
 
 	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pkt->len);
@@ -409,7 +516,10 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (err)
 		goto done;
 
-	err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, pkt);
+	skb_queue_head_init(&pkt_list);
+	skb_queue_tail(&pkt_list, pkt);
+	err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, &pkt_list);
+	skb_dequeue_tail(&pkt_list);
 
 done:
 	return err;
@@ -431,8 +541,7 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		goto done;
 
 	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
-	err = brcmf_sdioh_request_chain(sdiodev, incr_fix, SDIOH_READ, fn, addr,
-					pktq);
+	err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, pktq);
 
 done:
 	return err;
@@ -467,6 +576,7 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	uint width;
 	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
 	int err = 0;
+	struct sk_buff_head pkt_list;
 
 	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pkt->len);
@@ -489,7 +599,10 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (width == 4)
 		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
 
-	err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, pkt);
+	skb_queue_head_init(&pkt_list);
+	skb_queue_tail(&pkt_list, pkt);
+	err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, &pkt_list);
+	skb_dequeue_tail(&pkt_list);
 
 done:
 	return err;
@@ -503,6 +616,7 @@ brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
 	struct sk_buff *pkt;
 	u32 sdaddr;
 	uint dsize;
+	struct sk_buff_head pkt_list;
 
 	dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size);
 	pkt = dev_alloc_skb(dsize);
@@ -511,6 +625,7 @@ brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
 		return -EIO;
 	}
 	pkt->priority = 0;
+	skb_queue_head_init(&pkt_list);
 
 	/* Determine initial transfer parameters */
 	sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK;
@@ -538,8 +653,10 @@ brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
 		skb_put(pkt, dsize);
 		if (write)
 			memcpy(pkt->data, data, dsize);
+		skb_queue_tail(&pkt_list, pkt);
 		bcmerror = brcmf_sdio_buffrw(sdiodev, SDIO_FUNC_1, write,
-					     sdaddr, pkt);
+					     sdaddr, &pkt_list);
+		skb_dequeue_tail(&pkt_list);
 		if (bcmerror) {
 			brcmf_err("membytes transfer failed\n");
 			break;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 7a3c5bf..289e386 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -211,78 +211,6 @@ int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 	return err_ret;
 }
 
-/* precondition: host controller is claimed */
-static int
-brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo,
-			 uint func, uint addr, struct sk_buff *pkt, uint pktlen)
-{
-	int err_ret = 0;
-
-	if ((write) && (!fifo)) {
-		err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
-					   ((u8 *) (pkt->data)), pktlen);
-	} else if (write) {
-		err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
-					   ((u8 *) (pkt->data)), pktlen);
-	} else if (fifo) {
-		err_ret = sdio_readsb(sdiodev->func[func],
-				      ((u8 *) (pkt->data)), addr, pktlen);
-	} else {
-		err_ret = sdio_memcpy_fromio(sdiodev->func[func],
-					     ((u8 *) (pkt->data)),
-					     addr, pktlen);
-	}
-
-	return err_ret;
-}
-
-/*
- * This function takes a queue of packets. The packets on the queue
- * are assumed to be properly aligned by the caller.
- */
-int
-brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
-			  uint write, uint func, uint addr,
-			  struct sk_buff_head *pktq)
-{
-	bool fifo = (fix_inc == SDIOH_DATA_FIX);
-	u32 SGCount = 0;
-	int err_ret = 0;
-
-	struct sk_buff *pkt;
-
-	brcmf_dbg(SDIO, "Enter\n");
-
-	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
-	if (brcmf_pm_resume_error(sdiodev))
-		return -EIO;
-
-	skb_queue_walk(pktq, pkt) {
-		uint pkt_len = pkt->len;
-		pkt_len += 3;
-		pkt_len &= 0xFFFFFFFC;
-
-		err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
-						   addr, pkt, pkt_len);
-		if (err_ret) {
-			brcmf_err("%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
-				  write ? "TX" : "RX", pkt, SGCount, addr,
-				  pkt_len, err_ret);
-		} else {
-			brcmf_dbg(SDIO, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
-				  write ? "TX" : "RX", pkt, SGCount, addr,
-				  pkt_len);
-		}
-		if (!fifo)
-			addr += pkt_len;
-
-		SGCount++;
-	}
-
-	brcmf_dbg(SDIO, "Exit\n");
-	return err_ret;
-}
-
 static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr)
 {
 	/* read 24 bits and return valid 17 bit addr */
@@ -431,7 +359,6 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
 	atomic_set(&sdiodev->suspend, false);
 	init_waitqueue_head(&sdiodev->request_byte_wait);
 	init_waitqueue_head(&sdiodev->request_word_wait);
-	init_waitqueue_head(&sdiodev->request_chain_wait);
 	init_waitqueue_head(&sdiodev->request_buffer_wait);
 
 	brcmf_dbg(SDIO, "F2 found, calling brcmf_sdio_probe...\n");
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index cb22f2f..2641119 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -448,8 +448,6 @@ struct brcmf_sdio {
 	uint rxblen;		/* Allocated length of rxbuf */
 	u8 *rxctl;		/* Aligned pointer into rxbuf */
 	u8 *rxctl_orig;		/* pointer for freeing rxctl */
-	u8 *databuf;		/* Buffer for receiving big glom packet */
-	u8 *dataptr;		/* Aligned pointer into databuf */
 	uint rxlen;		/* Length of valid data in buffer */
 	spinlock_t rxctl_lock;	/* protection lock for ctrl frame resources */
 
@@ -473,8 +471,6 @@ struct brcmf_sdio {
 	s32 idletime;		/* Control for activity timeout */
 	s32 idlecount;	/* Activity timeout counter */
 	s32 idleclock;	/* How to set bus driver when idle */
-	s32 sd_rxchain;
-	bool use_rxchain;	/* If brcmf should use PKT chains */
 	bool rxflow_mode;	/* Rx flow control mode */
 	bool rxflow;		/* Is rx flow control on */
 	bool alp_only;		/* Don't use HT clock (ALP only) */
@@ -1025,29 +1021,6 @@ static void brcmf_sdbrcm_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx)
 		bus->sdiodev->bus_if->state = BRCMF_BUS_DOWN;
 }
 
-/* copy a buffer into a pkt buffer chain */
-static uint brcmf_sdbrcm_glom_from_buf(struct brcmf_sdio *bus, uint len)
-{
-	uint n, ret = 0;
-	struct sk_buff *p;
-	u8 *buf;
-
-	buf = bus->dataptr;
-
-	/* copy the data */
-	skb_queue_walk(&bus->glom, p) {
-		n = min_t(uint, p->len, len);
-		memcpy(p->data, buf, n);
-		buf += n;
-		len -= n;
-		ret += n;
-		if (!len)
-			break;
-	}
-
-	return ret;
-}
-
 /* return total length of buffer chain */
 static uint brcmf_sdbrcm_glom_len(struct brcmf_sdio *bus)
 {
@@ -1201,8 +1174,6 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 	int errcode;
 	u8 doff, sfdoff;
 
-	bool usechain = bus->use_rxchain;
-
 	struct brcmf_sdio_read rd_new;
 
 	/* If packets, issue read(s) and send up packet chain */
@@ -1237,7 +1208,6 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 			if (sublen % BRCMF_SDALIGN) {
 				brcmf_err("sublen %d not multiple of %d\n",
 					  sublen, BRCMF_SDALIGN);
-				usechain = false;
 			}
 			totlen += sublen;
 
@@ -1304,27 +1274,9 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 		 * packet and and copy into the chain.
 		 */
 		sdio_claim_host(bus->sdiodev->func[1]);
-		if (usechain) {
-			errcode = brcmf_sdcard_recv_chain(bus->sdiodev,
-					bus->sdiodev->sbwad,
-					SDIO_FUNC_2, F2SYNC, &bus->glom);
-		} else if (bus->dataptr) {
-			errcode = brcmf_sdcard_recv_buf(bus->sdiodev,
-					bus->sdiodev->sbwad,
-					SDIO_FUNC_2, F2SYNC,
-					bus->dataptr, dlen);
-			sublen = (u16) brcmf_sdbrcm_glom_from_buf(bus, dlen);
-			if (sublen != dlen) {
-				brcmf_err("FAILED TO COPY, dlen %d sublen %d\n",
-					  dlen, sublen);
-				errcode = -1;
-			}
-			pnext = NULL;
-		} else {
-			brcmf_err("COULDN'T ALLOC %d-BYTE GLOM, FORCE FAILURE\n",
-				  dlen);
-			errcode = -1;
-		}
+		errcode = brcmf_sdcard_recv_chain(bus->sdiodev,
+				bus->sdiodev->sbwad,
+				SDIO_FUNC_2, F2SYNC, &bus->glom);
 		sdio_release_host(bus->sdiodev->func[1]);
 		bus->sdcnt.f2rxdata++;
 
@@ -3527,9 +3479,6 @@ static void brcmf_sdbrcm_release_malloc(struct brcmf_sdio *bus)
 	kfree(bus->rxbuf);
 	bus->rxctl = bus->rxbuf = NULL;
 	bus->rxlen = 0;
-
-	kfree(bus->databuf);
-	bus->databuf = NULL;
 }
 
 static bool brcmf_sdbrcm_probe_malloc(struct brcmf_sdio *bus)
@@ -3542,29 +3491,10 @@ static bool brcmf_sdbrcm_probe_malloc(struct brcmf_sdio *bus)
 			    ALIGNMENT) + BRCMF_SDALIGN;
 		bus->rxbuf = kmalloc(bus->rxblen, GFP_ATOMIC);
 		if (!(bus->rxbuf))
-			goto fail;
-	}
-
-	/* Allocate buffer to receive glomed packet */
-	bus->databuf = kmalloc(MAX_DATA_BUF, GFP_ATOMIC);
-	if (!(bus->databuf)) {
-		/* release rxbuf which was already located as above */
-		if (!bus->rxblen)
-			kfree(bus->rxbuf);
-		goto fail;
+			return false;
 	}
 
-	/* Align the buffer */
-	if ((unsigned long)bus->databuf % BRCMF_SDALIGN)
-		bus->dataptr = bus->databuf + (BRCMF_SDALIGN -
-			       ((unsigned long)bus->databuf % BRCMF_SDALIGN));
-	else
-		bus->dataptr = bus->databuf;
-
 	return true;
-
-fail:
-	return false;
 }
 
 static bool
@@ -3703,10 +3633,6 @@ static bool brcmf_sdbrcm_probe_init(struct brcmf_sdio *bus)
 	bus->blocksize = bus->sdiodev->func[2]->cur_blksize;
 	bus->roundup = min(max_roundup, bus->blocksize);
 
-	/* bus module does not support packet chaining */
-	bus->use_rxchain = false;
-	bus->sd_rxchain = false;
-
 	/* SR state */
 	bus->sleeping = false;
 	bus->sr_enabled = false;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 991c1501..793df66 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -170,7 +170,6 @@ struct brcmf_sdio_dev {
 	atomic_t suspend;		/* suspend flag */
 	wait_queue_head_t request_byte_wait;
 	wait_queue_head_t request_word_wait;
-	wait_queue_head_t request_chain_wait;
 	wait_queue_head_t request_buffer_wait;
 	struct device *dev;
 	struct brcmf_bus *bus_if;
@@ -272,12 +271,6 @@ brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 			 uint rw, uint fnc, uint addr,
 			 u32 *word, uint nbyte);
 
-/* read or write any buffer using cmd53 */
-extern int
-brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
-			  uint write, uint func, uint addr,
-			  struct sk_buff_head *pktq);
-
 /* Watchdog timer interface for pm ops */
 extern void brcmf_sdio_wdtmr_enable(struct brcmf_sdio_dev *sdiodev,
 				    bool enable);
-- 
cgit v0.10.2


From 646093a29f85630d8efe2aa38fa585d2c3ea2e46 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 19 Jun 2013 10:32:32 +0800
Subject: bcm63xx_enet: fix return value check in bcm_enet_shared_probe()

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Introduce by commit 0ae99b5fede6f3a8d252d50bb4aba29544295219
(bcm63xx_enet: split DMA channel register accesses)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index 8f1ac02..b1bcd4b 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -2862,8 +2862,8 @@ static int bcm_enet_shared_probe(struct platform_device *pdev)
 	for (i = 0; i < 3; i++) {
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
 		p[i] = devm_ioremap_resource(&pdev->dev, res);
-		if (!p[i])
-			return -ENOMEM;
+		if (IS_ERR(p[i]))
+			return PTR_ERR(p[i]);
 	}
 
 	memcpy(bcm_enet_shared_base, p, sizeof(bcm_enet_shared_base));
-- 
cgit v0.10.2


From 86e8cf98de3e74bbfb0003501e0004bf1e5e2618 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 19 Jun 2013 10:57:22 +0200
Subject: nl80211: use small state buffer for wiphy_dump

Avoid parsing the original dump message again and again by
allocating a small state struct that is used by the functions
involved in the dump, storing this struct in cb->args[0].
This reduces the memory allocation size as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f8ffb9a..7dc3343 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1111,10 +1111,16 @@ nl80211_send_mgmt_stypes(struct sk_buff *msg,
 	return 0;
 }
 
+struct nl80211_dump_wiphy_state {
+	s64 filter_wiphy;
+	long start;
+	long split_start, band_start, chan_start;
+	bool split;
+};
+
 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 			      struct sk_buff *msg, u32 portid, u32 seq,
-			      int flags, bool split, long *split_start,
-			      long *band_start, long *chan_start)
+			      int flags, struct nl80211_dump_wiphy_state *state)
 {
 	void *hdr;
 	struct nlattr *nl_bands, *nl_band;
@@ -1125,19 +1131,14 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 	int i;
 	const struct ieee80211_txrx_stypes *mgmt_stypes =
 				dev->wiphy.mgmt_stypes;
-	long start = 0, start_chan = 0, start_band = 0;
 	u32 features;
 
 	hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
 	if (!hdr)
 		return -ENOBUFS;
 
-	/* allow always using the variables */
-	if (!split) {
-		split_start = &start;
-		band_start = &start_band;
-		chan_start = &start_chan;
-	}
+	if (WARN_ON(!state))
+		return -EINVAL;
 
 	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
 	    nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
@@ -1146,7 +1147,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 			cfg80211_rdev_list_generation))
 		goto nla_put_failure;
 
-	switch (*split_start) {
+	switch (state->split_start) {
 	case 0:
 		if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
 			       dev->wiphy.retry_short) ||
@@ -1192,8 +1193,8 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 		    nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
 			goto nla_put_failure;
 
-		(*split_start)++;
-		if (split)
+		state->split_start++;
+		if (state->split)
 			break;
 	case 1:
 		if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
@@ -1237,22 +1238,23 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 			}
 		}
 
-		(*split_start)++;
-		if (split)
+		state->split_start++;
+		if (state->split)
 			break;
 	case 2:
 		if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
 					dev->wiphy.interface_modes))
 				goto nla_put_failure;
-		(*split_start)++;
-		if (split)
+		state->split_start++;
+		if (state->split)
 			break;
 	case 3:
 		nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
 		if (!nl_bands)
 			goto nla_put_failure;
 
-		for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
+		for (band = state->band_start;
+		     band < IEEE80211_NUM_BANDS; band++) {
 			struct ieee80211_supported_band *sband;
 
 			sband = dev->wiphy.bands[band];
@@ -1264,12 +1266,12 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 			if (!nl_band)
 				goto nla_put_failure;
 
-			switch (*chan_start) {
+			switch (state->chan_start) {
 			case 0:
 				if (nl80211_send_band_rateinfo(msg, sband))
 					goto nla_put_failure;
-				(*chan_start)++;
-				if (split)
+				state->chan_start++;
+				if (state->split)
 					break;
 			default:
 				/* add frequencies */
@@ -1278,7 +1280,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 				if (!nl_freqs)
 					goto nla_put_failure;
 
-				for (i = *chan_start - 1;
+				for (i = state->chan_start - 1;
 				     i < sband->n_channels;
 				     i++) {
 					nl_freq = nla_nest_start(msg, i);
@@ -1287,26 +1289,27 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 
 					chan = &sband->channels[i];
 
-					if (nl80211_msg_put_channel(msg, chan,
-								    split))
+					if (nl80211_msg_put_channel(
+							msg, chan,
+							state->split))
 						goto nla_put_failure;
 
 					nla_nest_end(msg, nl_freq);
-					if (split)
+					if (state->split)
 						break;
 				}
 				if (i < sband->n_channels)
-					*chan_start = i + 2;
+					state->chan_start = i + 2;
 				else
-					*chan_start = 0;
+					state->chan_start = 0;
 				nla_nest_end(msg, nl_freqs);
 			}
 
 			nla_nest_end(msg, nl_band);
 
-			if (split) {
+			if (state->split) {
 				/* start again here */
-				if (*chan_start)
+				if (state->chan_start)
 					band--;
 				break;
 			}
@@ -1314,14 +1317,14 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 		nla_nest_end(msg, nl_bands);
 
 		if (band < IEEE80211_NUM_BANDS)
-			*band_start = band + 1;
+			state->band_start = band + 1;
 		else
-			*band_start = 0;
+			state->band_start = 0;
 
 		/* if bands & channels are done, continue outside */
-		if (*band_start == 0 && *chan_start == 0)
-			(*split_start)++;
-		if (split)
+		if (state->band_start == 0 && state->chan_start == 0)
+			state->split_start++;
+		if (state->split)
 			break;
 	case 4:
 		nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
@@ -1387,7 +1390,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 		}
 		CMD(start_p2p_device, START_P2P_DEVICE);
 		CMD(set_mcast_rate, SET_MCAST_RATE);
-		if (split) {
+		if (state->split) {
 			CMD(crit_proto_start, CRIT_PROTOCOL_START);
 			CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
 		}
@@ -1411,8 +1414,8 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 		}
 
 		nla_nest_end(msg, nl_cmds);
-		(*split_start)++;
-		if (split)
+		state->split_start++;
+		if (state->split)
 			break;
 	case 5:
 		if (dev->ops->remain_on_channel &&
@@ -1428,29 +1431,30 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 
 		if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
 			goto nla_put_failure;
-		(*split_start)++;
-		if (split)
+		state->split_start++;
+		if (state->split)
 			break;
 	case 6:
 #ifdef CONFIG_PM
-		if (nl80211_send_wowlan(msg, dev, split))
+		if (nl80211_send_wowlan(msg, dev, state->split))
 			goto nla_put_failure;
-		(*split_start)++;
-		if (split)
+		state->split_start++;
+		if (state->split)
 			break;
 #else
-		(*split_start)++;
+		state->split_start++;
 #endif
 	case 7:
 		if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
 					dev->wiphy.software_iftypes))
 			goto nla_put_failure;
 
-		if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
+		if (nl80211_put_iface_combinations(&dev->wiphy, msg,
+						   state->split))
 			goto nla_put_failure;
 
-		(*split_start)++;
-		if (split)
+		state->split_start++;
+		if (state->split)
 			break;
 	case 8:
 		if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
@@ -1464,7 +1468,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 		 * dump is split, otherwise it makes it too big. Therefore
 		 * only advertise it in that case.
 		 */
-		if (split)
+		if (state->split)
 			features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
 		if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
 			goto nla_put_failure;
@@ -1491,7 +1495,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 		 * case we'll continue with more data in the next round,
 		 * but break unconditionally so unsplit data stops here.
 		 */
-		(*split_start)++;
+		state->split_start++;
 		break;
 	case 9:
 		if (dev->wiphy.extended_capabilities &&
@@ -1510,7 +1514,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 			goto nla_put_failure;
 
 		/* done */
-		*split_start = 0;
+		state->split_start = 0;
 		break;
 	}
 	return genlmsg_end(msg, hdr);
@@ -1520,66 +1524,76 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
 	return -EMSGSIZE;
 }
 
+static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
+				    struct netlink_callback *cb,
+				    struct nl80211_dump_wiphy_state *state)
+{
+	struct nlattr **tb = nl80211_fam.attrbuf;
+	int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
+			      tb, nl80211_fam.maxattr, nl80211_policy);
+	/* ignore parse errors for backward compatibility */
+	if (ret)
+		return 0;
+
+	state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
+	if (tb[NL80211_ATTR_WIPHY])
+		state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
+	if (tb[NL80211_ATTR_WDEV])
+		state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
+	if (tb[NL80211_ATTR_IFINDEX]) {
+		struct net_device *netdev;
+		struct cfg80211_registered_device *rdev;
+		int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
+
+		netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
+		if (!netdev)
+			return -ENODEV;
+		if (netdev->ieee80211_ptr) {
+			rdev = wiphy_to_dev(
+				netdev->ieee80211_ptr->wiphy);
+			state->filter_wiphy = rdev->wiphy_idx;
+		}
+		dev_put(netdev);
+	}
+
+	return 0;
+}
+
 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	int idx = 0, ret;
-	int start = cb->args[0];
+	struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
 	struct cfg80211_registered_device *dev;
-	s64 filter_wiphy = -1;
-	bool split = false;
-	struct nlattr **tb;
-	int res;
-
-	/* will be zeroed in nlmsg_parse() */
-	tb = kmalloc(sizeof(*tb) * (NL80211_ATTR_MAX + 1), GFP_KERNEL);
-	if (!tb)
-		return -ENOMEM;
 
 	rtnl_lock();
-	res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
-			  tb, NL80211_ATTR_MAX, nl80211_policy);
-	if (res == 0) {
-		split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
-		if (tb[NL80211_ATTR_WIPHY])
-			filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
-		if (tb[NL80211_ATTR_WDEV])
-			filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
-		if (tb[NL80211_ATTR_IFINDEX]) {
-			struct net_device *netdev;
-			int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
-
-			netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
-			if (!netdev) {
-				rtnl_unlock();
-				kfree(tb);
-				return -ENODEV;
-			}
-			if (netdev->ieee80211_ptr) {
-				dev = wiphy_to_dev(
-					netdev->ieee80211_ptr->wiphy);
-				filter_wiphy = dev->wiphy_idx;
-			}
-			dev_put(netdev);
+	if (!state) {
+		state = kzalloc(sizeof(*state), GFP_KERNEL);
+		if (!state)
+			return -ENOMEM;
+		state->filter_wiphy = -1;
+		ret = nl80211_dump_wiphy_parse(skb, cb, state);
+		if (ret) {
+			kfree(state);
+			rtnl_unlock();
+			return ret;
 		}
+		cb->args[0] = (long)state;
 	}
-	kfree(tb);
 
 	list_for_each_entry(dev, &cfg80211_rdev_list, list) {
 		if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
 			continue;
-		if (++idx <= start)
+		if (++idx <= state->start)
 			continue;
-		if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
+		if (state->filter_wiphy != -1 &&
+		    state->filter_wiphy != dev->wiphy_idx)
 			continue;
 		/* attempt to fit multiple wiphy data chunks into the skb */
 		do {
 			ret = nl80211_send_wiphy(dev, skb,
 						 NETLINK_CB(cb->skb).portid,
 						 cb->nlh->nlmsg_seq,
-						 NLM_F_MULTI,
-						 split, &cb->args[1],
-						 &cb->args[2],
-						 &cb->args[3]);
+						 NLM_F_MULTI, state);
 			if (ret < 0) {
 				/*
 				 * If sending the wiphy data didn't fit (ENOBUFS
@@ -1604,27 +1618,34 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 				idx--;
 				break;
 			}
-		} while (cb->args[1] > 0);
+		} while (state->split_start > 0);
 		break;
 	}
 	rtnl_unlock();
 
-	cb->args[0] = idx;
+	state->start = idx;
 
 	return skb->len;
 }
 
+static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
+{
+	kfree((void *)cb->args[0]);
+	return 0;
+}
+
 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
 {
 	struct sk_buff *msg;
 	struct cfg80211_registered_device *dev = info->user_ptr[0];
+	struct nl80211_dump_wiphy_state state = {};
 
 	msg = nlmsg_new(4096, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
 
 	if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
-			       false, NULL, NULL, NULL) < 0) {
+			       &state) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
 	}
@@ -8418,6 +8439,7 @@ static struct genl_ops nl80211_ops[] = {
 		.cmd = NL80211_CMD_GET_WIPHY,
 		.doit = nl80211_get_wiphy,
 		.dumpit = nl80211_dump_wiphy,
+		.done = nl80211_dump_wiphy_done,
 		.policy = nl80211_policy,
 		/* can be retrieved by unprivileged users */
 		.internal_flags = NL80211_FLAG_NEED_WIPHY |
@@ -9038,13 +9060,13 @@ static struct genl_multicast_group nl80211_regulatory_mcgrp = {
 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
 {
 	struct sk_buff *msg;
+	struct nl80211_dump_wiphy_state state = {};
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
-	if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
-			       false, NULL, NULL, NULL) < 0) {
+	if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
 		nlmsg_free(msg);
 		return;
 	}
-- 
cgit v0.10.2


From 959867fa55d0cb55fb3d08656e5e62607167617f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 19 Jun 2013 13:05:42 +0200
Subject: cfg80211: require passing BSS struct back to cfg80211_assoc_timeout

Doing so will allow us to hold the BSS (not just ref it) over the
association process, thus ensuring that it doesn't time out and
gets invisible to the user (e.g. in 'iw wlan0 link'.)

This also fixes a leak in mac80211 where it doesn't always release
the BSS struct properly in all cases where calling this function.
This leak was reported by Ben Greear.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index e3a39fc..7b0730a 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1459,7 +1459,8 @@ const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);
  * This structure provides information needed to complete IEEE 802.11
  * authentication.
  *
- * @bss: The BSS to authenticate with.
+ * @bss: The BSS to authenticate with, the callee must obtain a reference
+ *	to it if it needs to keep it.
  * @auth_type: Authentication type (algorithm)
  * @ie: Extra IEs to add to Authentication frame or %NULL
  * @ie_len: Length of ie buffer in octets
@@ -1497,11 +1498,10 @@ enum cfg80211_assoc_req_flags {
  *
  * This structure provides information needed to complete IEEE 802.11
  * (re)association.
- * @bss: The BSS to associate with. If the call is successful the driver
- *	is given a reference that it must release, normally via a call to
- *	cfg80211_send_rx_assoc(), or, if association timed out, with a
- *	call to cfg80211_put_bss() (in addition to calling
- *	cfg80211_send_assoc_timeout())
+ * @bss: The BSS to associate with. If the call is successful the driver is
+ *	given a reference that it must give back to cfg80211_send_rx_assoc()
+ *	or to cfg80211_assoc_timeout(). To ensure proper refcounting, new
+ *	association requests while already associating must be rejected.
  * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
  * @ie_len: Length of ie buffer in octets
  * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
@@ -3522,11 +3522,11 @@ void cfg80211_rx_assoc_resp(struct net_device *dev,
 /**
  * cfg80211_assoc_timeout - notification of timed out association
  * @dev: network device
- * @addr: The MAC address of the device with which the association timed out
+ * @bss: The BSS entry with which association timed out.
  *
  * This function may sleep. The caller must hold the corresponding wdev's mutex.
  */
-void cfg80211_assoc_timeout(struct net_device *dev, const u8 *addr);
+void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss);
 
 /**
  * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 34d54fe..ae31968 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2795,8 +2795,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		if (!ieee80211_assoc_success(sdata, bss, mgmt, len)) {
 			/* oops -- internal error -- send timeout for now */
 			ieee80211_destroy_assoc_data(sdata, false);
-			cfg80211_put_bss(sdata->local->hw.wiphy, bss);
-			cfg80211_assoc_timeout(sdata->dev, mgmt->bssid);
+			cfg80211_assoc_timeout(sdata->dev, bss);
 			return;
 		}
 		sdata_info(sdata, "associated\n");
@@ -3513,13 +3512,10 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 	    time_after(jiffies, ifmgd->assoc_data->timeout)) {
 		if ((ifmgd->assoc_data->need_beacon && !ifmgd->have_beacon) ||
 		    ieee80211_do_assoc(sdata)) {
-			u8 bssid[ETH_ALEN];
-
-			memcpy(bssid, ifmgd->assoc_data->bss->bssid, ETH_ALEN);
+			struct cfg80211_bss *bss = ifmgd->assoc_data->bss;
 
 			ieee80211_destroy_assoc_data(sdata, false);
-
-			cfg80211_assoc_timeout(sdata->dev, bssid);
+			cfg80211_assoc_timeout(sdata->dev, bss);
 		}
 	} else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started)
 		run_again(sdata, ifmgd->assoc_data->timeout);
@@ -4445,8 +4441,11 @@ void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata)
 	cancel_work_sync(&ifmgd->chswitch_work);
 
 	sdata_lock(sdata);
-	if (ifmgd->assoc_data)
+	if (ifmgd->assoc_data) {
+		struct cfg80211_bss *bss = ifmgd->assoc_data->bss;
 		ieee80211_destroy_assoc_data(sdata, false);
+		cfg80211_assoc_timeout(sdata->dev, bss);
+	}
 	if (ifmgd->auth_data)
 		ieee80211_destroy_auth_data(sdata, false);
 	del_timer_sync(&ifmgd->timer);
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index a61a44b..dd6f79d 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -131,16 +131,18 @@ void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr)
 }
 EXPORT_SYMBOL(cfg80211_auth_timeout);
 
-void cfg80211_assoc_timeout(struct net_device *dev, const u8 *addr)
+void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 
-	trace_cfg80211_send_assoc_timeout(dev, addr);
+	trace_cfg80211_send_assoc_timeout(dev, bss->bssid);
 
-	nl80211_send_assoc_timeout(rdev, dev, addr, GFP_KERNEL);
+	nl80211_send_assoc_timeout(rdev, dev, bss->bssid, GFP_KERNEL);
 	cfg80211_sme_assoc_timeout(wdev);
+
+	cfg80211_put_bss(wiphy, bss);
 }
 EXPORT_SYMBOL(cfg80211_assoc_timeout);
 
-- 
cgit v0.10.2


From f1940c5730f0f0555e42afbcf629be7f7fbbce8e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 19 Jun 2013 13:21:15 +0200
Subject: cfg80211: hold BSS over association process

This fixes the potential issue that the BSS struct that we use
and later assign to wdev->current_bss is removed from the scan
list while associating.

Also warn when we don't have a BSS struct in connect_result
unless it's from a driver that only has the connect() API.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index dd6f79d..bfac5e1 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -38,6 +38,7 @@ void cfg80211_rx_assoc_resp(struct net_device *dev, struct cfg80211_bss *bss,
 	 * frame instead of reassoc.
 	 */
 	if (cfg80211_sme_rx_assoc_resp(wdev, status_code)) {
+		cfg80211_unhold_bss(bss_from_pub(bss));
 		cfg80211_put_bss(wiphy, bss);
 		return;
 	}
@@ -142,6 +143,7 @@ void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss)
 	nl80211_send_assoc_timeout(rdev, dev, bss->bssid, GFP_KERNEL);
 	cfg80211_sme_assoc_timeout(wdev);
 
+	cfg80211_unhold_bss(bss_from_pub(bss));
 	cfg80211_put_bss(wiphy, bss);
 }
 EXPORT_SYMBOL(cfg80211_assoc_timeout);
@@ -309,6 +311,8 @@ int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
 		goto out;
 
 	err = rdev_assoc(rdev, dev, req);
+	if (!err)
+		cfg80211_hold_bss(bss_from_pub(req->bss));
 
 out:
 	if (err)
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index ae7e2cb..c0bf781 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -615,19 +615,24 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 		kfree(wdev->connect_keys);
 		wdev->connect_keys = NULL;
 		wdev->ssid_len = 0;
-		cfg80211_put_bss(wdev->wiphy, bss);
+		if (bss) {
+			cfg80211_unhold_bss(bss_from_pub(bss));
+			cfg80211_put_bss(wdev->wiphy, bss);
+		}
 		return;
 	}
 
-	if (!bss)
+	if (!bss) {
+		WARN_ON_ONCE(!wiphy_to_dev(wdev->wiphy)->ops->connect);
 		bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
 				       wdev->ssid, wdev->ssid_len,
 				       WLAN_CAPABILITY_ESS,
 				       WLAN_CAPABILITY_ESS);
-	if (WARN_ON(!bss))
-		return;
+		if (WARN_ON(!bss))
+			return;
+		cfg80211_hold_bss(bss_from_pub(bss));
+	}
 
-	cfg80211_hold_bss(bss_from_pub(bss));
 	wdev->current_bss = bss_from_pub(bss);
 
 	cfg80211_upload_connect_keys(wdev);
-- 
cgit v0.10.2


From 10d0b9030a3f86e1e26c710c7580524d7787d688 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Tue, 18 Jun 2013 13:25:05 -0500
Subject: rtlwifi: rtl8192cu: Fix duplicate if test

A typo causes routine rtl92cu_phy_rf6052_set_cck_txpower() to test the
same condition twice. The problem was found using cppcheck-1.49, and the
proper fix was verified against the pre-mac80211 version of the code.

This patch was originally included as commit 1288aa4, but was accidentally
reverted in a later patch.

Reported-by: David Binderman <dcb314@hotmail.com> [original report]
Reported-by: Andrea Morello <andrea.merello@gmail.com> [report of accidental reversion]
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable <stable@vger.kernel.org>  [back to 2.6.39]
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/rf.c b/drivers/net/wireless/rtlwifi/rtl8192cu/rf.c
index 953f1a0..2119313 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/rf.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/rf.c
@@ -104,7 +104,7 @@ void rtl92cu_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
 			tx_agc[RF90_PATH_A] = 0x10101010;
 			tx_agc[RF90_PATH_B] = 0x10101010;
 		} else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
-			   TXHIGHPWRLEVEL_LEVEL1) {
+			   TXHIGHPWRLEVEL_LEVEL2) {
 			tx_agc[RF90_PATH_A] = 0x00000000;
 			tx_agc[RF90_PATH_B] = 0x00000000;
 		} else{
-- 
cgit v0.10.2


From f2bbb07729f04bd8efa3f3285f19ba0609e42017 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 18 Jun 2013 16:36:56 -0700
Subject: mwifiex: code rearrangement for better readability

Use negative check (if(!bss_desc)) and return failure
instead of failing a NULL check later in
mwifiex_check_network_compatibility() routine.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 23aa910..15b5457 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -255,25 +255,24 @@ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 	}
 
 	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
+		u8 config_bands;
+
 		/* Infra mode */
 		ret = mwifiex_deauthenticate(priv, NULL);
 		if (ret)
 			goto done;
 
-		if (bss_desc) {
-			u8 config_bands = 0;
+		if (!bss_desc)
+			return -1;
 
-			if (mwifiex_band_to_radio_type((u8) bss_desc->bss_band)
-			    == HostCmd_SCAN_RADIO_TYPE_BG)
-				config_bands = BAND_B | BAND_G | BAND_GN |
-					       BAND_GAC;
-			else
-				config_bands = BAND_A | BAND_AN | BAND_AAC;
+		if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
+						HostCmd_SCAN_RADIO_TYPE_BG)
+			config_bands = BAND_B | BAND_G | BAND_GN | BAND_GAC;
+		else
+			config_bands = BAND_A | BAND_AN | BAND_AAC;
 
-			if (!((config_bands | adapter->fw_bands) &
-			      ~adapter->fw_bands))
-				adapter->config_bands = config_bands;
-		}
+		if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
+			adapter->config_bands = config_bands;
 
 		ret = mwifiex_check_network_compatibility(priv, bss_desc);
 		if (ret)
-- 
cgit v0.10.2


From 86a9c4a28b2c1a367d340db53570ebea02f33fca Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Wed, 19 Jun 2013 13:35:31 +0200
Subject: brcm80211: fix null pointer access

Do not unconditionally access the chan variable in
brcmf_cfg80211_mgmt_tx() as it may be NULL.
Use freq instead.

Introduced by c2ff8cad64233b539c71a27e2a6e324001143ef0
("brcm80211: make mgmt_tx in brcmfmac accept a NULL channel")

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 71f4db5..277b37a 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -4050,8 +4050,7 @@ brcmf_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		       le16_to_cpu(action_frame->len));
 
 		brcmf_dbg(TRACE, "Action frame, cookie=%lld, len=%d, freq=%d\n",
-			  *cookie, le16_to_cpu(action_frame->len),
-			  chan->center_freq);
+			  *cookie, le16_to_cpu(action_frame->len), freq);
 
 		ack = brcmf_p2p_send_action_frame(cfg, cfg_to_ndev(cfg),
 						  af_params);
-- 
cgit v0.10.2


From 2a7305c88d245f104c3d6bd3babafb029fd07477 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Wed, 19 Jun 2013 08:49:05 -0700
Subject: mwifiex: add basic 11h support for station

This patch adds code to parse requested AP's 11h capabilities
and add 11h information in association request.

Also, deauth is sent to the AP after receiving channel switch
announcement event from firmware. This happens when AP advertises
WLAN_EID_CHANNEL_SWITCH IE in it's beacon.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/11h.c b/drivers/net/wireless/mwifiex/11h.c
new file mode 100644
index 0000000..8d68307
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/11h.c
@@ -0,0 +1,101 @@
+/*
+ * Marvell Wireless LAN device driver: 802.11h
+ *
+ * Copyright (C) 2013, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "main.h"
+#include "fw.h"
+
+
+/* This function appends 11h info to a buffer while joining an
+ * infrastructure BSS
+ */
+static void
+mwifiex_11h_process_infra_join(struct mwifiex_private *priv, u8 **buffer,
+			       struct mwifiex_bssdescriptor *bss_desc)
+{
+	struct mwifiex_ie_types_header *ie_header;
+	struct mwifiex_ie_types_pwr_capability *cap;
+	struct mwifiex_ie_types_local_pwr_constraint *constraint;
+	struct ieee80211_supported_band *sband;
+	u8 radio_type;
+	int i;
+
+	if (!buffer || !(*buffer))
+		return;
+
+	radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
+	sband = priv->wdev->wiphy->bands[radio_type];
+
+	cap = (struct mwifiex_ie_types_pwr_capability *)*buffer;
+	cap->header.type = cpu_to_le16(WLAN_EID_PWR_CAPABILITY);
+	cap->header.len = cpu_to_le16(2);
+	cap->min_pwr = 0;
+	cap->max_pwr = 0;
+	*buffer += sizeof(*cap);
+
+	constraint = (struct mwifiex_ie_types_local_pwr_constraint *)*buffer;
+	constraint->header.type = cpu_to_le16(WLAN_EID_PWR_CONSTRAINT);
+	constraint->header.len = cpu_to_le16(2);
+	constraint->chan = bss_desc->channel;
+	constraint->constraint = bss_desc->local_constraint;
+	*buffer += sizeof(*constraint);
+
+	ie_header = (struct mwifiex_ie_types_header *)*buffer;
+	ie_header->type = cpu_to_le16(TLV_TYPE_PASSTHROUGH);
+	ie_header->len  = cpu_to_le16(2 * sband->n_channels + 2);
+	*buffer += sizeof(*ie_header);
+	*(*buffer)++ = WLAN_EID_SUPPORTED_CHANNELS;
+	*(*buffer)++ = 2 * sband->n_channels;
+	for (i = 0; i < sband->n_channels; i++) {
+		*(*buffer)++ = ieee80211_frequency_to_channel(
+					sband->channels[i].center_freq);
+		*(*buffer)++ = 1; /* one channel in the subband */
+	}
+}
+
+/* Enable or disable the 11h extensions in the firmware */
+static int mwifiex_11h_activate(struct mwifiex_private *priv, bool flag)
+{
+	u32 enable = flag;
+
+	return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
+				     HostCmd_ACT_GEN_SET, DOT11H_I, &enable);
+}
+
+/* This functions processes TLV buffer for a pending BSS Join command.
+ *
+ * Activate 11h functionality in the firmware if the spectrum management
+ * capability bit is found in the network we are joining. Also, necessary
+ * TLVs are set based on requested network's 11h capability.
+ */
+void mwifiex_11h_process_join(struct mwifiex_private *priv, u8 **buffer,
+			      struct mwifiex_bssdescriptor *bss_desc)
+{
+	if (bss_desc->sensed_11h) {
+		/* Activate 11h functions in firmware, turns on capability
+		 * bit
+		 */
+		mwifiex_11h_activate(priv, true);
+		bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_SPECTRUM_MGMT;
+		mwifiex_11h_process_infra_join(priv, buffer, bss_desc);
+	} else {
+		/* Deactivate 11h functions in the firmware */
+		mwifiex_11h_activate(priv, false);
+		bss_desc->cap_info_bitmap &= ~WLAN_CAPABILITY_SPECTRUM_MGMT;
+	}
+}
diff --git a/drivers/net/wireless/mwifiex/Makefile b/drivers/net/wireless/mwifiex/Makefile
index ecf2846..a42a506 100644
--- a/drivers/net/wireless/mwifiex/Makefile
+++ b/drivers/net/wireless/mwifiex/Makefile
@@ -40,6 +40,7 @@ mwifiex-y += sta_rx.o
 mwifiex-y += uap_txrx.o
 mwifiex-y += cfg80211.o
 mwifiex-y += ethtool.o
+mwifiex-y += 11h.o
 mwifiex-$(CONFIG_DEBUG_FS) += debugfs.o
 obj-$(CONFIG_MWIFIEX) += mwifiex.o
 
diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index d6ada73..b6fbbf6 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -438,6 +438,7 @@ enum P2P_MODES {
 #define EVENT_BW_CHANGE                 0x00000048
 #define EVENT_UAP_MIC_COUNTERMEASURES   0x0000004c
 #define EVENT_HOSTWAKE_STAIE		0x0000004d
+#define EVENT_CHANNEL_SWITCH_ANN        0x00000050
 #define EVENT_REMAIN_ON_CHAN_EXPIRED    0x0000005f
 
 #define EVENT_ID_MASK                   0xffff
@@ -975,6 +976,7 @@ enum SNMP_MIB_INDEX {
 	LONG_RETRY_LIM_I = 7,
 	FRAG_THRESH_I = 8,
 	DOT11D_I = 9,
+	DOT11H_I = 10,
 };
 
 #define MAX_SNMP_BUF_SIZE   128
@@ -1206,6 +1208,18 @@ struct host_cmd_ds_sta_deauth {
 	__le16 reason;
 } __packed;
 
+struct mwifiex_ie_types_pwr_capability {
+	struct mwifiex_ie_types_header header;
+	s8 min_pwr;
+	s8 max_pwr;
+};
+
+struct mwifiex_ie_types_local_pwr_constraint {
+	struct mwifiex_ie_types_header header;
+	u8 chan;
+	u8 constraint;
+};
+
 struct mwifiex_ie_types_wmm_param_set {
 	struct mwifiex_ie_types_header header;
 	u8 wmm_ie[1];
diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c
index 122175a..1c8a771 100644
--- a/drivers/net/wireless/mwifiex/join.c
+++ b/drivers/net/wireless/mwifiex/join.c
@@ -534,6 +534,8 @@ int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv,
 
 	mwifiex_cmd_append_tsf_tlv(priv, &pos, bss_desc);
 
+	mwifiex_11h_process_join(priv, &pos, bss_desc);
+
 	cmd->size = cpu_to_le16((u16) (pos - (u8 *) assoc) + S_DS_GEN);
 
 	/* Set the Capability info at last */
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 0832c24..95a6f52 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -309,6 +309,9 @@ struct mwifiex_bssdescriptor {
 	u16 wapi_offset;
 	u8 *beacon_buf;
 	u32 beacon_buf_size;
+	u8 sensed_11h;
+	u8 local_constraint;
+	u8 chan_sw_ie_present;
 };
 
 struct mwifiex_current_bss_params {
@@ -1119,6 +1122,10 @@ u8 *mwifiex_11d_code_2_region(u8 code);
 void mwifiex_uap_del_sta_data(struct mwifiex_private *priv,
 			      struct mwifiex_sta_node *node);
 
+void mwifiex_11h_process_join(struct mwifiex_private *priv, u8 **buffer,
+			      struct mwifiex_bssdescriptor *bss_desc);
+int mwifiex_11h_handle_event_chanswann(struct mwifiex_private *priv);
+
 extern const struct ethtool_ops mwifiex_ethtool_ops;
 
 #ifdef CONFIG_DEBUG_FS
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 801b6b7..284d68b 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -391,6 +391,12 @@ mwifiex_is_network_compatible(struct mwifiex_private *priv,
 		return 0;
 	}
 
+	if (bss_desc->chan_sw_ie_present) {
+		dev_err(adapter->dev,
+			"Don't connect to AP with WLAN_EID_CHANNEL_SWITCH\n");
+		return -1;
+	}
+
 	if (mwifiex_is_bss_wapi(priv, bss_desc)) {
 		dev_dbg(adapter->dev, "info: return success for WAPI AP\n");
 		return 0;
@@ -1169,6 +1175,19 @@ int mwifiex_update_bss_desc_with_ie(struct mwifiex_adapter *adapter,
 			bss_entry->erp_flags = *(current_ptr + 2);
 			break;
 
+		case WLAN_EID_PWR_CONSTRAINT:
+			bss_entry->local_constraint = *(current_ptr + 2);
+			bss_entry->sensed_11h = true;
+			break;
+
+		case WLAN_EID_CHANNEL_SWITCH:
+			bss_entry->chan_sw_ie_present = true;
+		case WLAN_EID_PWR_CAPABILITY:
+		case WLAN_EID_TPC_REPORT:
+		case WLAN_EID_QUIET:
+			bss_entry->sensed_11h = true;
+		    break;
+
 		case WLAN_EID_EXT_SUPP_RATES:
 			/*
 			 * Only process extended supported rate
diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c
index 41aafc7..d28c920 100644
--- a/drivers/net/wireless/mwifiex/sta_event.c
+++ b/drivers/net/wireless/mwifiex/sta_event.c
@@ -427,6 +427,14 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 
 		break;
 
+	case EVENT_CHANNEL_SWITCH_ANN:
+		dev_dbg(adapter->dev, "event: Channel Switch Announcement\n");
+		ret = mwifiex_send_cmd_async(priv,
+			HostCmd_CMD_802_11_DEAUTHENTICATE,
+			HostCmd_ACT_GEN_SET, 0,
+			priv->curr_bss_params.bss_descriptor.mac_address);
+		break;
+
 	default:
 		dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
 			eventcause);
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 15b5457..498add7 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -178,6 +178,9 @@ int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
 	 */
 	bss_desc->disable_11ac = true;
 
+	if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT)
+		bss_desc->sensed_11h = true;
+
 	return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
 }
 
-- 
cgit v0.10.2


From b887664d882ee4f6a67e0bf05e5f141d32fcc067 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 18 Jun 2013 16:36:58 -0700
Subject: mwifiex: channel switch handling for station

After receiving channel switch announcement from AP, scan and
association on that channel is blocked for DFS_CHAN_MOVE_TIME
(10 seconds). Hence station will be able to connect to the AP,
once it is moved to new channel.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Paul Stewart <pstew@chromium.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index b6fbbf6..1b45aa5 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -245,6 +245,8 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define HT_BW_20    0
 #define HT_BW_40    1
 
+#define DFS_CHAN_MOVE_TIME      10000
+
 #define HostCmd_CMD_GET_HW_SPEC                       0x0003
 #define HostCmd_CMD_802_11_SCAN                       0x0006
 #define HostCmd_CMD_802_11_GET_LOG                    0x000b
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 2fe31dc..caaf4bd 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -133,6 +133,9 @@ int mwifiex_init_priv(struct mwifiex_private *priv)
 
 	priv->scan_block = false;
 
+	priv->csa_chan = 0;
+	priv->csa_expire_time = 0;
+
 	return mwifiex_add_bss_prio_tbl(priv);
 }
 
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index 95a6f52..3da73d3 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -513,6 +513,8 @@ struct mwifiex_private {
 	u32 mgmt_frame_mask;
 	struct mwifiex_roc_cfg roc_cfg;
 	bool scan_aborting;
+	u8 csa_chan;
+	unsigned long csa_expire_time;
 };
 
 enum mwifiex_ba_status {
@@ -1021,6 +1023,24 @@ static inline bool mwifiex_is_skb_mgmt_frame(struct sk_buff *skb)
 	return (*(u32 *)skb->data == PKT_TYPE_MGMT);
 }
 
+/* This function retrieves channel closed for operation by Channel
+ * Switch Announcement.
+ */
+static inline u8
+mwifiex_11h_get_csa_closed_channel(struct mwifiex_private *priv)
+{
+	if (!priv->csa_chan)
+		return 0;
+
+	/* Clear csa channel, if DFS channel move time has passed */
+	if (jiffies > priv->csa_expire_time) {
+		priv->csa_chan = 0;
+		priv->csa_expire_time = 0;
+	}
+
+	return priv->csa_chan;
+}
+
 int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
 			     u32 func_init_shutdown);
 int mwifiex_add_card(void *, struct semaphore *, struct mwifiex_if_ops *, u8);
diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 284d68b..c447d9b 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -575,6 +575,9 @@ mwifiex_scan_channel_list(struct mwifiex_private *priv,
 		return -1;
 	}
 
+	/* Check csa channel expiry before preparing scan list */
+	mwifiex_11h_get_csa_closed_channel(priv);
+
 	chan_tlv_out->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
 
 	/* Set the temp channel struct pointer to the start of the desired
@@ -604,6 +607,11 @@ mwifiex_scan_channel_list(struct mwifiex_private *priv,
 		while (tlv_idx < max_chan_per_scan &&
 		       tmp_chan_list->chan_number && !done_early) {
 
+			if (tmp_chan_list->chan_number == priv->csa_chan) {
+				tmp_chan_list++;
+				continue;
+			}
+
 			dev_dbg(priv->adapter->dev,
 				"info: Scan: Chan(%3d), Radio(%d),"
 				" Mode(%d, %d), Dur(%d)\n",
@@ -1594,6 +1602,9 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 		goto check_next_scan;
 	}
 
+	/* Check csa channel expiry before parsing scan response */
+	mwifiex_11h_get_csa_closed_channel(priv);
+
 	bytes_left = le16_to_cpu(scan_rsp->bss_descript_size);
 	dev_dbg(adapter->dev, "info: SCAN_RESP: bss_descript_size %d\n",
 		bytes_left);
@@ -1746,6 +1757,13 @@ int mwifiex_ret_802_11_scan(struct mwifiex_private *priv,
 			struct ieee80211_channel *chan;
 			u8 band;
 
+			/* Skip entry if on csa closed channel */
+			if (channel == priv->csa_chan) {
+				dev_dbg(adapter->dev,
+					"Dropping entry on csa closed channel\n");
+				continue;
+			}
+
 			band = BAND_G;
 			if (chan_band_tlv) {
 				chan_band =
diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c
index d28c920..ea265ec 100644
--- a/drivers/net/wireless/mwifiex/sta_event.c
+++ b/drivers/net/wireless/mwifiex/sta_event.c
@@ -429,6 +429,9 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
 
 	case EVENT_CHANNEL_SWITCH_ANN:
 		dev_dbg(adapter->dev, "event: Channel Switch Announcement\n");
+		priv->csa_expire_time =
+				jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
+		priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
 		ret = mwifiex_send_cmd_async(priv,
 			HostCmd_CMD_802_11_DEAUTHENTICATE,
 			HostCmd_ACT_GEN_SET, 0,
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 498add7..206c3e0 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -281,6 +281,14 @@ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 		if (ret)
 			goto done;
 
+		if (mwifiex_11h_get_csa_closed_channel(priv) ==
+							(u8)bss_desc->channel) {
+			dev_err(adapter->dev,
+				"Attempt to reconnect on csa closed chan(%d)\n",
+				bss_desc->channel);
+			goto done;
+		}
+
 		dev_dbg(adapter->dev, "info: SSID found in scan list ... "
 				      "associating...\n");
 
-- 
cgit v0.10.2


From ea7d69e75ac06daa7bc2fca2a8317197e5e3c81c Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Wed, 19 Jun 2013 23:29:23 +0400
Subject: sh_eth: define/use EESR_RX_CHECK macro

sh_eth_interrupt() uses the same Rx interrupt mask twice to check the interrupt
status register -- #define EESR_RX_CHECK  and use it instead.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 8cb600c..cd5987e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1504,23 +1504,14 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 	 */
 	intr_status &= sh_eth_read(ndev, EESIPR) | DMAC_M_ECI;
 	/* Clear interrupt */
-	if (intr_status & (EESR_FRC | EESR_RMAF | EESR_RRF |
-			EESR_RTLF | EESR_RTSF | EESR_PRE | EESR_CERF |
-			cd->tx_check | cd->eesr_err_check)) {
+	if (intr_status & (EESR_RX_CHECK | cd->tx_check | cd->eesr_err_check)) {
 		sh_eth_write(ndev, intr_status, EESR);
 		ret = IRQ_HANDLED;
 	} else
 		goto other_irq;
 
-	if (intr_status & (EESR_FRC | /* Frame recv*/
-			EESR_RMAF | /* Multi cast address recv*/
-			EESR_RRF  | /* Bit frame recv */
-			EESR_RTLF | /* Long frame recv*/
-			EESR_RTSF | /* short frame recv */
-			EESR_PRE  | /* PHY-LSI recv error */
-			EESR_CERF)){ /* recv frame CRC error */
+	if (intr_status & EESR_RX_CHECK)
 		sh_eth_rx(ndev, intr_status);
-	}
 
 	/* Tx Check */
 	if (intr_status & cd->tx_check) {
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 729e77e..d05b60b 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -248,6 +248,14 @@ enum EESR_BIT {
 	EESR_CERF	= 0x00000001,
 };
 
+#define EESR_RX_CHECK		(EESR_FRC  | /* Frame recv */		\
+				 EESR_RMAF | /* Multicast address recv */ \
+				 EESR_RRF  | /* Bit frame recv */	\
+				 EESR_RTLF | /* Long frame recv */	\
+				 EESR_RTSF | /* Short frame recv */	\
+				 EESR_PRE  | /* PHY-LSI recv error */	\
+				 EESR_CERF)  /* Recv frame CRC error */
+
 #define DEFAULT_TX_CHECK	(EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | \
 				 EESR_RTO)
 #define DEFAULT_EESR_ERR_CHECK	(EESR_TWB | EESR_TABT | EESR_RABT | \
-- 
cgit v0.10.2


From 3719109d61ca96746c733538ec776d02a6952640 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Wed, 19 Jun 2013 23:30:23 +0400
Subject: sh_eth: add NAPI support

The driver hasn't used NAPI so far; implement its support at last...

The patch was tested on Renesas R8A77781 BOCK-W board.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index cd5987e..5233eda 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1244,7 +1244,7 @@ static int sh_eth_txfree(struct net_device *ndev)
 }
 
 /* Packet receive function */
-static int sh_eth_rx(struct net_device *ndev, u32 intr_status)
+static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 	struct sh_eth_rxdesc *rxdesc;
@@ -1252,6 +1252,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status)
 	int entry = mdp->cur_rx % mdp->num_rx_ring;
 	int boguscnt = (mdp->dirty_rx + mdp->num_rx_ring) - mdp->cur_rx;
 	struct sk_buff *skb;
+	int exceeded = 0;
 	u16 pkt_len = 0;
 	u32 desc_status;
 
@@ -1263,6 +1264,12 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status)
 		if (--boguscnt < 0)
 			break;
 
+		if (*quota <= 0) {
+			exceeded = 1;
+			break;
+		}
+		(*quota)--;
+
 		if (!(desc_status & RDFEND))
 			ndev->stats.rx_length_errors++;
 
@@ -1350,7 +1357,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status)
 		sh_eth_write(ndev, EDRRR_R, EDRRR);
 	}
 
-	return 0;
+	return exceeded;
 }
 
 static void sh_eth_rcv_snd_disable(struct net_device *ndev)
@@ -1491,7 +1498,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 	struct sh_eth_cpu_data *cd = mdp->cd;
 	irqreturn_t ret = IRQ_NONE;
-	unsigned long intr_status;
+	unsigned long intr_status, intr_enable;
 
 	spin_lock(&mdp->lock);
 
@@ -1502,25 +1509,41 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 	 * and we need to fully handle it in sh_eth_error() in order to quench
 	 * it as it doesn't get cleared by just writing 1 to the ECI bit...
 	 */
-	intr_status &= sh_eth_read(ndev, EESIPR) | DMAC_M_ECI;
-	/* Clear interrupt */
-	if (intr_status & (EESR_RX_CHECK | cd->tx_check | cd->eesr_err_check)) {
-		sh_eth_write(ndev, intr_status, EESR);
+	intr_enable = sh_eth_read(ndev, EESIPR);
+	intr_status &= intr_enable | DMAC_M_ECI;
+	if (intr_status & (EESR_RX_CHECK | cd->tx_check | cd->eesr_err_check))
 		ret = IRQ_HANDLED;
-	} else
+	else
 		goto other_irq;
 
-	if (intr_status & EESR_RX_CHECK)
-		sh_eth_rx(ndev, intr_status);
+	if (intr_status & EESR_RX_CHECK) {
+		if (napi_schedule_prep(&mdp->napi)) {
+			/* Mask Rx interrupts */
+			sh_eth_write(ndev, intr_enable & ~EESR_RX_CHECK,
+				     EESIPR);
+			__napi_schedule(&mdp->napi);
+		} else {
+			dev_warn(&ndev->dev,
+				 "ignoring interrupt, status 0x%08lx, mask 0x%08lx.\n",
+				 intr_status, intr_enable);
+		}
+	}
 
 	/* Tx Check */
 	if (intr_status & cd->tx_check) {
+		/* Clear Tx interrupts */
+		sh_eth_write(ndev, intr_status & cd->tx_check, EESR);
+
 		sh_eth_txfree(ndev);
 		netif_wake_queue(ndev);
 	}
 
-	if (intr_status & cd->eesr_err_check)
+	if (intr_status & cd->eesr_err_check) {
+		/* Clear error interrupts */
+		sh_eth_write(ndev, intr_status & cd->eesr_err_check, EESR);
+
 		sh_eth_error(ndev, intr_status);
+	}
 
 other_irq:
 	spin_unlock(&mdp->lock);
@@ -1528,6 +1551,33 @@ other_irq:
 	return ret;
 }
 
+static int sh_eth_poll(struct napi_struct *napi, int budget)
+{
+	struct sh_eth_private *mdp = container_of(napi, struct sh_eth_private,
+						  napi);
+	struct net_device *ndev = napi->dev;
+	int quota = budget;
+	unsigned long intr_status;
+
+	for (;;) {
+		intr_status = sh_eth_read(ndev, EESR);
+		if (!(intr_status & EESR_RX_CHECK))
+			break;
+		/* Clear Rx interrupts */
+		sh_eth_write(ndev, intr_status & EESR_RX_CHECK, EESR);
+
+		if (sh_eth_rx(ndev, intr_status, &quota))
+			goto out;
+	}
+
+	napi_complete(napi);
+
+	/* Reenable Rx interrupts */
+	sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR);
+out:
+	return budget - quota;
+}
+
 /* PHY state control function */
 static void sh_eth_adjust_link(struct net_device *ndev)
 {
@@ -1839,6 +1889,8 @@ static int sh_eth_open(struct net_device *ndev)
 	if (ret)
 		goto out_free_irq;
 
+	napi_enable(&mdp->napi);
+
 	return ret;
 
 out_free_irq:
@@ -1934,6 +1986,8 @@ static int sh_eth_close(struct net_device *ndev)
 {
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
+	napi_disable(&mdp->napi);
+
 	netif_stop_queue(ndev);
 
 	/* Disable interrupts by clearing the interrupt mask. */
@@ -2623,10 +2677,12 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 		}
 	}
 
+	netif_napi_add(ndev, &mdp->napi, sh_eth_poll, 64);
+
 	/* network device register */
 	ret = register_netdev(ndev);
 	if (ret)
-		goto out_release;
+		goto out_napi_del;
 
 	/* mdio bus init */
 	ret = sh_mdio_init(ndev, pdev->id, pd);
@@ -2644,6 +2700,9 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 out_unregister:
 	unregister_netdev(ndev);
 
+out_napi_del:
+	netif_napi_del(&mdp->napi);
+
 out_release:
 	/* net_dev free */
 	if (ndev)
@@ -2656,9 +2715,11 @@ out:
 static int sh_eth_drv_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct sh_eth_private *mdp = netdev_priv(ndev);
 
 	sh_mdio_release(ndev);
 	unregister_netdev(ndev);
+	netif_napi_del(&mdp->napi);
 	pm_runtime_disable(&pdev->dev);
 	free_netdev(ndev);
 
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index d05b60b..029744f7 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -505,6 +505,7 @@ struct sh_eth_private {
 	u32 cur_tx, dirty_tx;
 	u32 rx_buf_sz;		/* Based on MTU+slack. */
 	int edmac_endian;
+	struct napi_struct napi;
 	/* MII transceiver section. */
 	u32 phy_id;					/* PHY ID */
 	struct mii_bus *mii_bus;	/* MDIO bus control */
-- 
cgit v0.10.2


From 8f80899665c4baca5fe18e919a18db818c3e11fa Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Thu, 20 Jun 2013 02:22:56 +0400
Subject: sh_eth: remove 'tx_error_check' field of 'struct sh_eth_cpu_data'

The 'tx_error_check' field of 'struct sh_eth_cpu_data' is write-only, so remove
it along with the DEFAULT_TX_ERROR_CHECK macro.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5233eda..9a8b24e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -384,7 +384,6 @@ static struct sh_eth_cpu_data r8a777x_data = {
 	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
 	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE |
 			  EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI,
-	.tx_error_check	= EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE,
 
 	.apr		= 1,
 	.mpr		= 1,
@@ -420,7 +419,6 @@ static struct sh_eth_cpu_data sh7724_data = {
 	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
 	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE |
 			  EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI,
-	.tx_error_check	= EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE,
 
 	.apr		= 1,
 	.mpr		= 1,
@@ -457,7 +455,6 @@ static struct sh_eth_cpu_data sh7757_data = {
 	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
 	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE |
 			  EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI,
-	.tx_error_check	= EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE,
 
 	.irq_flags	= IRQF_SHARED,
 	.apr		= 1,
@@ -527,8 +524,6 @@ static struct sh_eth_cpu_data sh7757_data_giga = {
 	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \
 			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \
 			  EESR_ECI,
-	.tx_error_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \
-			  EESR_TFE,
 	.fdr_value	= 0x0000072f,
 	.rmcr_value	= 0x00000001,
 
@@ -587,8 +582,6 @@ static struct sh_eth_cpu_data sh7734_data = {
 	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \
 			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \
 			  EESR_ECI,
-	.tx_error_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \
-			  EESR_TFE,
 
 	.apr		= 1,
 	.mpr		= 1,
@@ -616,8 +609,6 @@ static struct sh_eth_cpu_data sh7763_data = {
 	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \
 			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \
 			  EESR_ECI,
-	.tx_error_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \
-			  EESR_TFE,
 
 	.apr		= 1,
 	.mpr		= 1,
@@ -655,8 +646,6 @@ static struct sh_eth_cpu_data r8a7740_data = {
 	.eesr_err_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \
 			  EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \
 			  EESR_ECI,
-	.tx_error_check	= EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \
-			  EESR_TFE,
 
 	.apr		= 1,
 	.mpr		= 1,
@@ -706,9 +695,6 @@ static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd)
 
 	if (!cd->eesr_err_check)
 		cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK;
-
-	if (!cd->tx_error_check)
-		cd->tx_error_check = DEFAULT_TX_ERROR_CHECK;
 }
 
 static int sh_eth_check_reset(struct net_device *ndev)
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 029744f7..87c7ae9 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -261,8 +261,6 @@ enum EESR_BIT {
 #define DEFAULT_EESR_ERR_CHECK	(EESR_TWB | EESR_TABT | EESR_RABT | \
 				 EESR_RDE | EESR_RFRMER | EESR_ADE | \
 				 EESR_TFE | EESR_TDE | EESR_ECI)
-#define DEFAULT_TX_ERROR_CHECK	(EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | \
-				 EESR_TFE)
 
 /* EESIPR */
 enum DMAC_IM_BIT {
@@ -468,7 +466,6 @@ struct sh_eth_cpu_data {
 	/* interrupt checking mask */
 	unsigned long tx_check;
 	unsigned long eesr_err_check;
-	unsigned long tx_error_check;
 
 	/* hardware features */
 	unsigned long irq_flags;	/* IRQ configuration flags */
-- 
cgit v0.10.2


From a80c3de714bc4855747faf5f00e8203fb800e6bb Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Thu, 20 Jun 2013 02:24:54 +0400
Subject: sh_eth: remove redundant bits from 'eesipr_value' field initializer

For SH7724 'eesipr_value' field initializer includes DMAC_M_RFRMER & DMAC_M_ECI
bits which are already contained in 0x01ff009f -- remove them.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 9a8b24e..4b4c586 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -414,7 +414,7 @@ static struct sh_eth_cpu_data sh7724_data = {
 
 	.ecsr_value	= ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD,
 	.ecsipr_value	= ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP,
-	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x01ff009f,
+	.eesipr_value	= 0x01ff009f,
 
 	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
 	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE |
-- 
cgit v0.10.2


From c8bbe37aa60a3ef694df65fed4e905bd4b1bd73c Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Thu, 20 Jun 2013 02:26:14 +0400
Subject: sh_eth: cleanup 'enum TD_STS_BIT'

Fix the comment to 'enum TD_STS_BIT', reformat the values, and add a couple of
values missing before (though unused by the driver).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 87c7ae9..7540dc3 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -302,11 +302,11 @@ enum FCFTR_BIT {
 #define DEFAULT_FIFO_F_D_RFF	(FCFTR_RFF2 | FCFTR_RFF1 | FCFTR_RFF0)
 #define DEFAULT_FIFO_F_D_RFD	(FCFTR_RFD2 | FCFTR_RFD1 | FCFTR_RFD0)
 
-/* Transfer descriptor bit */
+/* Transmit descriptor bit */
 enum TD_STS_BIT {
-	TD_TACT = 0x80000000,
-	TD_TDLE = 0x40000000, TD_TFP1 = 0x20000000,
-	TD_TFP0 = 0x10000000,
+	TD_TACT = 0x80000000, TD_TDLE = 0x40000000,
+	TD_TFP1 = 0x20000000, TD_TFP0 = 0x10000000,
+	TD_TFE  = 0x08000000, TD_TWBI = 0x04000000,
 };
 #define TDF1ST	TD_TFP1
 #define TDFEND	TD_TFP0
-- 
cgit v0.10.2


From ac8025a643a0e0beb81f3f37ca693364c6b77858 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Thu, 13 Jun 2013 22:12:45 +0400
Subject: sh_eth: get R8A7740 Rx descriptor word 0 shift out of #ifdef

The only R8A7740 specific #ifdef hindering  ARM multiplatform build is  left in
sh_eth_rx(): it covers the code shifting Rx buffer descriptor word 0 by 16. Get
rid of the #ifdef by adding 'shift_rd0' field to the  'struct sh_eth_cpu_data',
making the shift dependent on it, and setting it to 1 for the R8A7740 case...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 4b4c586..7732f11 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -656,6 +656,7 @@ static struct sh_eth_cpu_data r8a7740_data = {
 	.no_ade		= 1,
 	.tsu		= 1,
 	.select_mii	= 1,
+	.shift_rd0	= 1,
 };
 
 static struct sh_eth_cpu_data sh7619_data = {
@@ -1259,7 +1260,6 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 		if (!(desc_status & RDFEND))
 			ndev->stats.rx_length_errors++;
 
-#if defined(CONFIG_ARCH_R8A7740)
 		/*
 		 * In case of almost all GETHER/ETHERs, the Receive Frame State
 		 * (RFS) bits in the Receive Descriptor 0 are from bit 9 to
@@ -1267,8 +1267,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 		 * bits are from bit 25 to bit 16. So, the driver needs right
 		 * shifting by 16.
 		 */
-		desc_status >>= 16;
-#endif
+		if (mdp->cd->shift_rd0)
+			desc_status >>= 16;
 
 		if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 |
 				   RD_RFS5 | RD_RFS6 | RD_RFS10)) {
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 7540dc3..a78fb0c 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -481,6 +481,7 @@ struct sh_eth_cpu_data {
 	unsigned no_ade:1;	/* E-DMAC DO NOT have ADE bit in EESR */
 	unsigned hw_crc:1;	/* E-DMAC have CSMR */
 	unsigned select_mii:1;	/* EtherC have RMII_MII (MII select register) */
+	unsigned shift_rd0:1;	/* shift Rx descriptor word 0 right by 16 */
 };
 
 struct sh_eth_private {
-- 
cgit v0.10.2


From 20fd4d1f04da07d09192ad8ad366a70d5125bfaf Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:49:32 -0700
Subject: gre: Simplify gre protocol registration locking.

Use cmpxchg() for atomic protocol registration which saves
code and data space.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c
index b2e805a..1e294d5 100644
--- a/net/ipv4/gre.c
+++ b/net/ipv4/gre.c
@@ -26,46 +26,32 @@
 
 
 static const struct gre_protocol __rcu *gre_proto[GREPROTO_MAX] __read_mostly;
-static DEFINE_SPINLOCK(gre_proto_lock);
 
 int gre_add_protocol(const struct gre_protocol *proto, u8 version)
 {
 	if (version >= GREPROTO_MAX)
-		goto err_out;
-
-	spin_lock(&gre_proto_lock);
-	if (gre_proto[version])
-		goto err_out_unlock;
-
-	RCU_INIT_POINTER(gre_proto[version], proto);
-	spin_unlock(&gre_proto_lock);
-	return 0;
+		return -EINVAL;
 
-err_out_unlock:
-	spin_unlock(&gre_proto_lock);
-err_out:
-	return -1;
+	return (cmpxchg((const struct gre_protocol **)&gre_proto[version], NULL, proto) == NULL) ?
+		0 : -EBUSY;
 }
 EXPORT_SYMBOL_GPL(gre_add_protocol);
 
 int gre_del_protocol(const struct gre_protocol *proto, u8 version)
 {
+	int ret;
+
 	if (version >= GREPROTO_MAX)
-		goto err_out;
-
-	spin_lock(&gre_proto_lock);
-	if (rcu_dereference_protected(gre_proto[version],
-			lockdep_is_held(&gre_proto_lock)) != proto)
-		goto err_out_unlock;
-	RCU_INIT_POINTER(gre_proto[version], NULL);
-	spin_unlock(&gre_proto_lock);
+		return -EINVAL;
+
+	ret = (cmpxchg((const struct gre_protocol **)&gre_proto[version], proto, NULL) == proto) ?
+		0 : -EBUSY;
+
+	if (ret)
+		return ret;
+
 	synchronize_rcu();
 	return 0;
-
-err_out_unlock:
-	spin_unlock(&gre_proto_lock);
-err_out:
-	return -1;
 }
 EXPORT_SYMBOL_GPL(gre_del_protocol);
 
-- 
cgit v0.10.2


From bda7bb46343647f68591366731295a0f3eea59ed Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:49:38 -0700
Subject: gre: Allow multiple protocol listener for gre protocol.

Currently there is only one user is allowed to register for gre
protocol.  Following patch adds de-multiplexer.  So that multiple
modules can listen on gre protocol e.g. kernel gre devices and ovs.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/gre.h b/include/net/gre.h
index 9f03a39..c6ea0c7 100644
--- a/include/net/gre.h
+++ b/include/net/gre.h
@@ -7,6 +7,7 @@
 #define GREPROTO_CISCO		0
 #define GREPROTO_PPTP		1
 #define GREPROTO_MAX		2
+#define GRE_IP_PROTO_MAX	2
 
 struct gre_protocol {
 	int  (*handler)(struct sk_buff *skb);
@@ -22,6 +23,29 @@ struct gre_base_hdr {
 int gre_add_protocol(const struct gre_protocol *proto, u8 version);
 int gre_del_protocol(const struct gre_protocol *proto, u8 version);
 
+struct gre_cisco_protocol {
+	int (*handler)(struct sk_buff *skb, const struct tnl_ptk_info *tpi);
+	int (*err_handler)(struct sk_buff *skb, u32 info,
+			   const struct tnl_ptk_info *tpi);
+	u8 priority;
+};
+
+int gre_cisco_register(struct gre_cisco_protocol *proto);
+int gre_cisco_unregister(struct gre_cisco_protocol *proto);
+
+static inline int ip_gre_calc_hlen(__be16 o_flags)
+{
+	int addend = 4;
+
+	if (o_flags&TUNNEL_CSUM)
+		addend += 4;
+	if (o_flags&TUNNEL_KEY)
+		addend += 4;
+	if (o_flags&TUNNEL_SEQ)
+		addend += 4;
+	return addend;
+}
+
 static inline __be16 gre_flags_to_tnl_flags(__be16 flags)
 {
 	__be16 tflags = 0;
diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c
index 1e294d5..8b9a373 100644
--- a/net/ipv4/gre.c
+++ b/net/ipv4/gre.c
@@ -13,6 +13,8 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/module.h>
+#include <linux/if.h>
+#include <linux/icmp.h>
 #include <linux/kernel.h>
 #include <linux/kmod.h>
 #include <linux/skbuff.h>
@@ -24,8 +26,12 @@
 #include <net/protocol.h>
 #include <net/gre.h>
 
+#include <net/icmp.h>
+#include <net/route.h>
+#include <net/xfrm.h>
 
 static const struct gre_protocol __rcu *gre_proto[GREPROTO_MAX] __read_mostly;
+static struct gre_cisco_protocol __rcu *gre_cisco_proto_list[GRE_IP_PROTO_MAX];
 
 int gre_add_protocol(const struct gre_protocol *proto, u8 version)
 {
@@ -55,6 +61,173 @@ int gre_del_protocol(const struct gre_protocol *proto, u8 version)
 }
 EXPORT_SYMBOL_GPL(gre_del_protocol);
 
+static __sum16 check_checksum(struct sk_buff *skb)
+{
+	__sum16 csum = 0;
+
+	switch (skb->ip_summed) {
+	case CHECKSUM_COMPLETE:
+		csum = csum_fold(skb->csum);
+
+		if (!csum)
+			break;
+		/* Fall through. */
+
+	case CHECKSUM_NONE:
+		skb->csum = 0;
+		csum = __skb_checksum_complete(skb);
+		skb->ip_summed = CHECKSUM_COMPLETE;
+		break;
+	}
+
+	return csum;
+}
+
+static int parse_gre_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
+			    bool *csum_err)
+{
+	unsigned int ip_hlen = ip_hdrlen(skb);
+	const struct gre_base_hdr *greh;
+	__be32 *options;
+	int hdr_len;
+
+	if (unlikely(!pskb_may_pull(skb, sizeof(struct gre_base_hdr))))
+		return -EINVAL;
+
+	greh = (struct gre_base_hdr *)(skb_network_header(skb) + ip_hlen);
+	if (unlikely(greh->flags & (GRE_VERSION | GRE_ROUTING)))
+		return -EINVAL;
+
+	tpi->flags = gre_flags_to_tnl_flags(greh->flags);
+	hdr_len = ip_gre_calc_hlen(tpi->flags);
+
+	if (!pskb_may_pull(skb, hdr_len))
+		return -EINVAL;
+
+	greh = (struct gre_base_hdr *)(skb_network_header(skb) + ip_hlen);
+	tpi->proto = greh->protocol;
+
+	options = (__be32 *)(greh + 1);
+	if (greh->flags & GRE_CSUM) {
+		if (check_checksum(skb)) {
+			*csum_err = true;
+			return -EINVAL;
+		}
+		options++;
+	}
+
+	if (greh->flags & GRE_KEY) {
+		tpi->key = *options;
+		options++;
+	} else
+		tpi->key = 0;
+
+	if (unlikely(greh->flags & GRE_SEQ)) {
+		tpi->seq = *options;
+		options++;
+	} else
+		tpi->seq = 0;
+
+	/* WCCP version 1 and 2 protocol decoding.
+	 * - Change protocol to IP
+	 * - When dealing with WCCPv2, Skip extra 4 bytes in GRE header
+	 */
+	if (greh->flags == 0 && tpi->proto == htons(ETH_P_WCCP)) {
+		tpi->proto = htons(ETH_P_IP);
+		if ((*(u8 *)options & 0xF0) != 0x40) {
+			hdr_len += 4;
+			if (!pskb_may_pull(skb, hdr_len))
+				return -EINVAL;
+		}
+	}
+	return 0;
+}
+
+static int gre_cisco_rcv(struct sk_buff *skb)
+{
+	struct tnl_ptk_info tpi;
+	int i;
+	bool csum_err = false;
+
+	if (parse_gre_header(skb, &tpi, &csum_err) < 0)
+		goto drop;
+
+	rcu_read_lock();
+	for (i = 0; i < GRE_IP_PROTO_MAX; i++) {
+		struct gre_cisco_protocol *proto;
+		int ret;
+
+		proto = rcu_dereference(gre_cisco_proto_list[i]);
+		if (!proto)
+			continue;
+		ret = proto->handler(skb, &tpi);
+		if (ret == PACKET_RCVD) {
+			rcu_read_unlock();
+			return 0;
+		}
+	}
+	rcu_read_unlock();
+
+	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
+static void gre_cisco_err(struct sk_buff *skb, u32 info)
+{
+	/* All the routers (except for Linux) return only
+	 * 8 bytes of packet payload. It means, that precise relaying of
+	 * ICMP in the real Internet is absolutely infeasible.
+	 *
+	 * Moreover, Cisco "wise men" put GRE key to the third word
+	 * in GRE header. It makes impossible maintaining even soft
+	 * state for keyed
+	 * GRE tunnels with enabled checksum. Tell them "thank you".
+	 *
+	 * Well, I wonder, rfc1812 was written by Cisco employee,
+	 * what the hell these idiots break standards established
+	 * by themselves???
+	 */
+
+	const int type = icmp_hdr(skb)->type;
+	const int code = icmp_hdr(skb)->code;
+	struct tnl_ptk_info tpi;
+	bool csum_err = false;
+	int i;
+
+	if (parse_gre_header(skb, &tpi, &csum_err)) {
+		if (!csum_err)		/* ignore csum errors. */
+			return;
+	}
+
+	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
+		ipv4_update_pmtu(skb, dev_net(skb->dev), info,
+				skb->dev->ifindex, 0, IPPROTO_GRE, 0);
+		return;
+	}
+	if (type == ICMP_REDIRECT) {
+		ipv4_redirect(skb, dev_net(skb->dev), skb->dev->ifindex, 0,
+				IPPROTO_GRE, 0);
+		return;
+	}
+
+	rcu_read_lock();
+	for (i = 0; i < GRE_IP_PROTO_MAX; i++) {
+		struct gre_cisco_protocol *proto;
+
+		proto = rcu_dereference(gre_cisco_proto_list[i]);
+		if (!proto)
+			continue;
+
+		if (proto->err_handler(skb, info, &tpi) == PACKET_RCVD)
+			goto out;
+
+	}
+out:
+	rcu_read_unlock();
+}
+
 static int gre_rcv(struct sk_buff *skb)
 {
 	const struct gre_protocol *proto;
@@ -206,27 +379,68 @@ static const struct net_offload gre_offload = {
 	},
 };
 
+static const struct gre_protocol ipgre_protocol = {
+	.handler     = gre_cisco_rcv,
+	.err_handler = gre_cisco_err,
+};
+
+int gre_cisco_register(struct gre_cisco_protocol *newp)
+{
+	struct gre_cisco_protocol **proto = (struct gre_cisco_protocol **)
+					    &gre_cisco_proto_list[newp->priority];
+
+	return (cmpxchg(proto, NULL, newp) == NULL) ? 0 : -EBUSY;
+}
+EXPORT_SYMBOL_GPL(gre_cisco_register);
+
+int gre_cisco_unregister(struct gre_cisco_protocol *del_proto)
+{
+	struct gre_cisco_protocol **proto = (struct gre_cisco_protocol **)
+					    &gre_cisco_proto_list[del_proto->priority];
+	int ret;
+
+	ret = (cmpxchg(proto, del_proto, NULL) == del_proto) ? 0 : -EINVAL;
+
+	if (ret)
+		return ret;
+
+	synchronize_net();
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gre_cisco_unregister);
+
 static int __init gre_init(void)
 {
 	pr_info("GRE over IPv4 demultiplexor driver\n");
 
 	if (inet_add_protocol(&net_gre_protocol, IPPROTO_GRE) < 0) {
 		pr_err("can't add protocol\n");
-		return -EAGAIN;
+		goto err;
+	}
+
+	if (gre_add_protocol(&ipgre_protocol, GREPROTO_CISCO) < 0) {
+		pr_info("%s: can't add ipgre handler\n", __func__);
+		goto err_gre;
 	}
 
 	if (inet_add_offload(&gre_offload, IPPROTO_GRE)) {
 		pr_err("can't add protocol offload\n");
-		inet_del_protocol(&net_gre_protocol, IPPROTO_GRE);
-		return -EAGAIN;
+		goto err_gso;
 	}
 
 	return 0;
+err_gso:
+	gre_del_protocol(&ipgre_protocol, GREPROTO_CISCO);
+err_gre:
+	inet_del_protocol(&net_gre_protocol, IPPROTO_GRE);
+err:
+	return -EAGAIN;
 }
 
 static void __exit gre_exit(void)
 {
 	inet_del_offload(&gre_offload, IPPROTO_GRE);
+	gre_del_protocol(&ipgre_protocol, GREPROTO_CISCO);
 	inet_del_protocol(&net_gre_protocol, IPPROTO_GRE);
 }
 
@@ -236,4 +450,3 @@ module_exit(gre_exit);
 MODULE_DESCRIPTION("GRE over IPv4 demultiplexer driver");
 MODULE_AUTHOR("D. Kozlov (xeb@mail.ru)");
 MODULE_LICENSE("GPL");
-
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index a982657..19863a8 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -121,103 +121,8 @@ static int ipgre_tunnel_init(struct net_device *dev);
 static int ipgre_net_id __read_mostly;
 static int gre_tap_net_id __read_mostly;
 
-static __sum16 check_checksum(struct sk_buff *skb)
-{
-	__sum16 csum = 0;
-
-	switch (skb->ip_summed) {
-	case CHECKSUM_COMPLETE:
-		csum = csum_fold(skb->csum);
-
-		if (!csum)
-			break;
-		/* Fall through. */
-
-	case CHECKSUM_NONE:
-		skb->csum = 0;
-		csum = __skb_checksum_complete(skb);
-		skb->ip_summed = CHECKSUM_COMPLETE;
-		break;
-	}
-
-	return csum;
-}
-
-static int ip_gre_calc_hlen(__be16 o_flags)
-{
-	int addend = 4;
-
-	if (o_flags&TUNNEL_CSUM)
-		addend += 4;
-	if (o_flags&TUNNEL_KEY)
-		addend += 4;
-	if (o_flags&TUNNEL_SEQ)
-		addend += 4;
-	return addend;
-}
-
-static int parse_gre_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
-			    bool *csum_err, int *hdr_len)
-{
-	unsigned int ip_hlen = ip_hdrlen(skb);
-	const struct gre_base_hdr *greh;
-	__be32 *options;
-
-	if (unlikely(!pskb_may_pull(skb, sizeof(struct gre_base_hdr))))
-		return -EINVAL;
-
-	greh = (struct gre_base_hdr *)(skb_network_header(skb) + ip_hlen);
-	if (unlikely(greh->flags & (GRE_VERSION | GRE_ROUTING)))
-		return -EINVAL;
-
-	tpi->flags = gre_flags_to_tnl_flags(greh->flags);
-	*hdr_len = ip_gre_calc_hlen(tpi->flags);
-
-	if (!pskb_may_pull(skb, *hdr_len))
-		return -EINVAL;
-
-	greh = (struct gre_base_hdr *)(skb_network_header(skb) + ip_hlen);
-
-	tpi->proto = greh->protocol;
-
-	options = (__be32 *)(greh + 1);
-	if (greh->flags & GRE_CSUM) {
-		if (check_checksum(skb)) {
-			*csum_err = true;
-			return -EINVAL;
-		}
-		options++;
-	}
-
-	if (greh->flags & GRE_KEY) {
-		tpi->key = *options;
-		options++;
-	} else
-		tpi->key = 0;
-
-	if (unlikely(greh->flags & GRE_SEQ)) {
-		tpi->seq = *options;
-		options++;
-	} else
-		tpi->seq = 0;
-
-	/* WCCP version 1 and 2 protocol decoding.
-	 * - Change protocol to IP
-	 * - When dealing with WCCPv2, Skip extra 4 bytes in GRE header
-	 */
-	if (greh->flags == 0 && tpi->proto == htons(ETH_P_WCCP)) {
-		tpi->proto = htons(ETH_P_IP);
-		if ((*(u8 *)options & 0xF0) != 0x40) {
-			*hdr_len += 4;
-			if (!pskb_may_pull(skb, *hdr_len))
-				return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-static void ipgre_err(struct sk_buff *skb, u32 info)
+static int ipgre_err(struct sk_buff *skb, u32 info,
+		     const struct tnl_ptk_info *tpi)
 {
 
 	/* All the routers (except for Linux) return only
@@ -239,26 +144,18 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
 	const int type = icmp_hdr(skb)->type;
 	const int code = icmp_hdr(skb)->code;
 	struct ip_tunnel *t;
-	struct tnl_ptk_info tpi;
-	int hdr_len;
-	bool csum_err = false;
-
-	if (parse_gre_header(skb, &tpi, &csum_err, &hdr_len)) {
-		if (!csum_err)          /* ignore csum errors. */
-			return;
-	}
 
 	switch (type) {
 	default:
 	case ICMP_PARAMETERPROB:
-		return;
+		return PACKET_RCVD;
 
 	case ICMP_DEST_UNREACH:
 		switch (code) {
 		case ICMP_SR_FAILED:
 		case ICMP_PORT_UNREACH:
 			/* Impossible event. */
-			return;
+			return PACKET_RCVD;
 		default:
 			/* All others are translated to HOST_UNREACH.
 			   rfc2003 contains "deep thoughts" about NET_UNREACH,
@@ -269,79 +166,61 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
 		break;
 	case ICMP_TIME_EXCEEDED:
 		if (code != ICMP_EXC_TTL)
-			return;
+			return PACKET_RCVD;
 		break;
 
 	case ICMP_REDIRECT:
 		break;
 	}
 
-	if (tpi.proto == htons(ETH_P_TEB))
+	if (tpi->proto == htons(ETH_P_TEB))
 		itn = net_generic(net, gre_tap_net_id);
 	else
 		itn = net_generic(net, ipgre_net_id);
 
 	iph = (const struct iphdr *)skb->data;
-	t = ip_tunnel_lookup(itn, skb->dev->ifindex, tpi.flags,
-			     iph->daddr, iph->saddr, tpi.key);
+	t = ip_tunnel_lookup(itn, skb->dev->ifindex, tpi->flags,
+			     iph->daddr, iph->saddr, tpi->key);
 
 	if (t == NULL)
-		return;
+		return PACKET_REJECT;
 
-	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
-		ipv4_update_pmtu(skb, dev_net(skb->dev), info,
-				 t->parms.link, 0, IPPROTO_GRE, 0);
-		return;
-	}
-	if (type == ICMP_REDIRECT) {
-		ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
-			      IPPROTO_GRE, 0);
-		return;
-	}
 	if (t->parms.iph.daddr == 0 ||
 	    ipv4_is_multicast(t->parms.iph.daddr))
-		return;
+		return PACKET_RCVD;
 
 	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)
-		return;
+		return PACKET_RCVD;
 
 	if (time_before(jiffies, t->err_time + IPTUNNEL_ERR_TIMEO))
 		t->err_count++;
 	else
 		t->err_count = 1;
 	t->err_time = jiffies;
+	return PACKET_RCVD;
 }
 
-static int ipgre_rcv(struct sk_buff *skb)
+static int ipgre_rcv(struct sk_buff *skb, const struct tnl_ptk_info *tpi)
 {
 	struct net *net = dev_net(skb->dev);
 	struct ip_tunnel_net *itn;
 	const struct iphdr *iph;
 	struct ip_tunnel *tunnel;
-	struct tnl_ptk_info tpi;
-	int hdr_len;
-	bool csum_err = false;
-
-	if (parse_gre_header(skb, &tpi, &csum_err, &hdr_len) < 0)
-		goto drop;
 
-	if (tpi.proto == htons(ETH_P_TEB))
+	if (tpi->proto == htons(ETH_P_TEB))
 		itn = net_generic(net, gre_tap_net_id);
 	else
 		itn = net_generic(net, ipgre_net_id);
 
 	iph = ip_hdr(skb);
-	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, tpi.flags,
-				  iph->saddr, iph->daddr, tpi.key);
+	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, tpi->flags,
+				  iph->saddr, iph->daddr, tpi->key);
 
 	if (tunnel) {
-		ip_tunnel_rcv(tunnel, skb, &tpi, log_ecn_error);
-		return 0;
+		ip_tunnel_rcv(tunnel, skb, tpi, log_ecn_error);
+		return PACKET_RCVD;
 	}
-	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
-drop:
-	kfree_skb(skb);
-	return 0;
+	return PACKET_REJECT;
 }
 
 static struct sk_buff *handle_offloads(struct ip_tunnel *tunnel, struct sk_buff *skb)
@@ -708,9 +587,10 @@ static int ipgre_tunnel_init(struct net_device *dev)
 	return ip_tunnel_init(dev);
 }
 
-static const struct gre_protocol ipgre_protocol = {
-	.handler     = ipgre_rcv,
-	.err_handler = ipgre_err,
+static struct gre_cisco_protocol ipgre_protocol = {
+	.handler        = ipgre_rcv,
+	.err_handler    = ipgre_err,
+	.priority       = 0,
 };
 
 static int __net_init ipgre_init_net(struct net *net)
@@ -978,7 +858,7 @@ static int __init ipgre_init(void)
 	if (err < 0)
 		goto pnet_tap_faied;
 
-	err = gre_add_protocol(&ipgre_protocol, GREPROTO_CISCO);
+	err = gre_cisco_register(&ipgre_protocol);
 	if (err < 0) {
 		pr_info("%s: can't add protocol\n", __func__);
 		goto add_proto_failed;
@@ -997,7 +877,7 @@ static int __init ipgre_init(void)
 tap_ops_failed:
 	rtnl_link_unregister(&ipgre_link_ops);
 rtnl_link_failed:
-	gre_del_protocol(&ipgre_protocol, GREPROTO_CISCO);
+	gre_cisco_unregister(&ipgre_protocol);
 add_proto_failed:
 	unregister_pernet_device(&ipgre_tap_net_ops);
 pnet_tap_faied:
@@ -1009,8 +889,7 @@ static void __exit ipgre_fini(void)
 {
 	rtnl_link_unregister(&ipgre_tap_ops);
 	rtnl_link_unregister(&ipgre_link_ops);
-	if (gre_del_protocol(&ipgre_protocol, GREPROTO_CISCO) < 0)
-		pr_info("%s: can't remove protocol\n", __func__);
+	gre_cisco_unregister(&ipgre_protocol);
 	unregister_pernet_device(&ipgre_tap_net_ops);
 	unregister_pernet_device(&ipgre_net_ops);
 }
-- 
cgit v0.10.2


From 752f36da68e9136df8918461d651723a43627e04 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:49:45 -0700
Subject: gre: export gre_build_header() function.

This is required for ovs gre module.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/gre.h b/include/net/gre.h
index c6ea0c7..cbb9d51 100644
--- a/include/net/gre.h
+++ b/include/net/gre.h
@@ -32,6 +32,8 @@ struct gre_cisco_protocol {
 
 int gre_cisco_register(struct gre_cisco_protocol *proto);
 int gre_cisco_unregister(struct gre_cisco_protocol *proto);
+void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
+		      int hdr_len);
 
 static inline int ip_gre_calc_hlen(__be16 o_flags)
 {
diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c
index 8b9a373..1cbc465 100644
--- a/net/ipv4/gre.c
+++ b/net/ipv4/gre.c
@@ -61,6 +61,38 @@ int gre_del_protocol(const struct gre_protocol *proto, u8 version)
 }
 EXPORT_SYMBOL_GPL(gre_del_protocol);
 
+void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
+		      int hdr_len)
+{
+	struct gre_base_hdr *greh;
+
+	skb_push(skb, hdr_len);
+
+	greh = (struct gre_base_hdr *)skb->data;
+	greh->flags = tnl_flags_to_gre_flags(tpi->flags);
+	greh->protocol = tpi->proto;
+
+	if (tpi->flags&(TUNNEL_KEY|TUNNEL_CSUM|TUNNEL_SEQ)) {
+		__be32 *ptr = (__be32 *)(((u8 *)greh) + hdr_len - 4);
+
+		if (tpi->flags&TUNNEL_SEQ) {
+			*ptr = tpi->seq;
+			ptr--;
+		}
+		if (tpi->flags&TUNNEL_KEY) {
+			*ptr = tpi->key;
+			ptr--;
+		}
+		if (tpi->flags&TUNNEL_CSUM &&
+		    !(skb_shinfo(skb)->gso_type & SKB_GSO_GRE)) {
+			*ptr = 0;
+			*(__sum16 *)ptr = csum_fold(skb_checksum(skb, 0,
+								 skb->len, 0));
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(gre_build_header);
+
 static __sum16 check_checksum(struct sk_buff *skb)
 {
 	__sum16 csum = 0;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 19863a8..362c7c4 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -248,40 +248,6 @@ error:
 	return ERR_PTR(err);
 }
 
-static struct sk_buff *gre_build_header(struct sk_buff *skb,
-					const struct tnl_ptk_info *tpi,
-					int hdr_len)
-{
-	struct gre_base_hdr *greh;
-
-	skb_push(skb, hdr_len);
-
-	greh = (struct gre_base_hdr *)skb->data;
-	greh->flags = tnl_flags_to_gre_flags(tpi->flags);
-	greh->protocol = tpi->proto;
-
-	if (tpi->flags&(TUNNEL_KEY|TUNNEL_CSUM|TUNNEL_SEQ)) {
-		__be32 *ptr = (__be32 *)(((u8 *)greh) + hdr_len - 4);
-
-		if (tpi->flags&TUNNEL_SEQ) {
-			*ptr = tpi->seq;
-			ptr--;
-		}
-		if (tpi->flags&TUNNEL_KEY) {
-			*ptr = tpi->key;
-			ptr--;
-		}
-		if (tpi->flags&TUNNEL_CSUM &&
-		    !(skb_shinfo(skb)->gso_type & SKB_GSO_GRE)) {
-			*(__sum16 *)ptr = 0;
-			*(__sum16 *)ptr = csum_fold(skb_checksum(skb, 0,
-								 skb->len, 0));
-		}
-	}
-
-	return skb;
-}
-
 static void __gre_xmit(struct sk_buff *skb, struct net_device *dev,
 		       const struct iphdr *tnl_params,
 		       __be16 proto)
@@ -302,11 +268,7 @@ static void __gre_xmit(struct sk_buff *skb, struct net_device *dev,
 	tpi.seq = htonl(tunnel->o_seqno);
 
 	/* Push GRE header. */
-	skb = gre_build_header(skb, &tpi, tunnel->hlen);
-	if (unlikely(!skb)) {
-		dev->stats.tx_dropped++;
-		return;
-	}
+	gre_build_header(skb, &tpi, tunnel->hlen);
 
 	ip_tunnel_xmit(skb, dev, tnl_params, tnl_params->protocol);
 }
-- 
cgit v0.10.2


From 45f2e9976cb6fc3f1cc533fd53fe74da5a9dbce4 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:49:51 -0700
Subject: gre: export gre_handle_offloads() function.

This is required for OVS GRE offloading.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/gre.h b/include/net/gre.h
index cbb9d51..a5a4ddf 100644
--- a/include/net/gre.h
+++ b/include/net/gre.h
@@ -34,6 +34,7 @@ int gre_cisco_register(struct gre_cisco_protocol *proto);
 int gre_cisco_unregister(struct gre_cisco_protocol *proto);
 void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
 		      int hdr_len);
+struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum);
 
 static inline int ip_gre_calc_hlen(__be16 o_flags)
 {
diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c
index 1cbc465..5ecc9c4 100644
--- a/net/ipv4/gre.c
+++ b/net/ipv4/gre.c
@@ -93,6 +93,35 @@ void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
 }
 EXPORT_SYMBOL_GPL(gre_build_header);
 
+struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
+{
+	int err;
+
+	if (likely(!skb->encapsulation)) {
+		skb_reset_inner_headers(skb);
+		skb->encapsulation = 1;
+	}
+
+	if (skb_is_gso(skb)) {
+		err = skb_unclone(skb, GFP_ATOMIC);
+		if (unlikely(err))
+			goto error;
+		skb_shinfo(skb)->gso_type |= SKB_GSO_GRE;
+		return skb;
+	} else if (skb->ip_summed == CHECKSUM_PARTIAL && gre_csum) {
+		err = skb_checksum_help(skb);
+		if (unlikely(err))
+			goto error;
+	} else if (skb->ip_summed != CHECKSUM_PARTIAL)
+		skb->ip_summed = CHECKSUM_NONE;
+
+	return skb;
+error:
+	kfree_skb(skb);
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(gre_handle_offloads);
+
 static __sum16 check_checksum(struct sk_buff *skb)
 {
 	__sum16 csum = 0;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 362c7c4..c326e86 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -223,31 +223,6 @@ static int ipgre_rcv(struct sk_buff *skb, const struct tnl_ptk_info *tpi)
 	return PACKET_REJECT;
 }
 
-static struct sk_buff *handle_offloads(struct ip_tunnel *tunnel, struct sk_buff *skb)
-{
-	int err;
-
-	if (skb_is_gso(skb)) {
-		err = skb_unclone(skb, GFP_ATOMIC);
-		if (unlikely(err))
-			goto error;
-		skb_shinfo(skb)->gso_type |= SKB_GSO_GRE;
-		return skb;
-	} else if (skb->ip_summed == CHECKSUM_PARTIAL &&
-		   tunnel->parms.o_flags&TUNNEL_CSUM) {
-		err = skb_checksum_help(skb);
-		if (unlikely(err))
-			goto error;
-	} else if (skb->ip_summed != CHECKSUM_PARTIAL)
-		skb->ip_summed = CHECKSUM_NONE;
-
-	return skb;
-
-error:
-	kfree_skb(skb);
-	return ERR_PTR(err);
-}
-
 static void __gre_xmit(struct sk_buff *skb, struct net_device *dev,
 		       const struct iphdr *tnl_params,
 		       __be16 proto)
@@ -255,11 +230,6 @@ static void __gre_xmit(struct sk_buff *skb, struct net_device *dev,
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	struct tnl_ptk_info tpi;
 
-	if (likely(!skb->encapsulation)) {
-		skb_reset_inner_headers(skb);
-		skb->encapsulation = 1;
-	}
-
 	tpi.flags = tunnel->parms.o_flags;
 	tpi.proto = proto;
 	tpi.key = tunnel->parms.o_key;
@@ -279,7 +249,7 @@ static netdev_tx_t ipgre_xmit(struct sk_buff *skb,
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	const struct iphdr *tnl_params;
 
-	skb = handle_offloads(tunnel, skb);
+	skb = gre_handle_offloads(skb, !!(tunnel->parms.o_flags&TUNNEL_CSUM));
 	if (IS_ERR(skb))
 		goto out;
 
@@ -318,7 +288,7 @@ static netdev_tx_t gre_tap_xmit(struct sk_buff *skb,
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 
-	skb = handle_offloads(tunnel, skb);
+	skb = gre_handle_offloads(skb, !!(tunnel->parms.o_flags&TUNNEL_CSUM));
 	if (IS_ERR(skb))
 		goto out;
 
-- 
cgit v0.10.2


From 0e6fbc5b6c6218987c93b8c7ca60cf786062899d Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:49:56 -0700
Subject: ip_tunnels: extend iptunnel_xmit()

Refactor various ip tunnels xmit functions and extend iptunnel_xmit()
so that there is more code sharing.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index f6dce13..284c6c0 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1021,7 +1021,6 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct rtable *rt;
 	const struct iphdr *old_iph;
-	struct iphdr *iph;
 	struct vxlanhdr *vxh;
 	struct udphdr *uh;
 	struct flowi4 fl4;
@@ -1030,6 +1029,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
         u32 vni;
 	__be16 df = 0;
 	__u8 tos, ttl;
+	int err;
 
 	dst_port = rdst->remote_port ? rdst->remote_port : vxlan->dst_port;
 	vni = rdst->remote_vni;
@@ -1097,13 +1097,6 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 		vxlan_encap_bypass(skb, vxlan, dst_vxlan);
 		return NETDEV_TX_OK;
 	}
-
-	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
-	IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
-			      IPSKB_REROUTED);
-	skb_dst_drop(skb);
-	skb_dst_set(skb, &rt->dst);
-
 	vxh = (struct vxlanhdr *) __skb_push(skb, sizeof(*vxh));
 	vxh->vx_flags = htonl(VXLAN_FLAGS);
 	vxh->vx_vni = htonl(vni << 8);
@@ -1118,27 +1111,18 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 	uh->len = htons(skb->len);
 	uh->check = 0;
 
-	__skb_push(skb, sizeof(*iph));
-	skb_reset_network_header(skb);
-	iph		= ip_hdr(skb);
-	iph->version	= 4;
-	iph->ihl	= sizeof(struct iphdr) >> 2;
-	iph->frag_off	= df;
-	iph->protocol	= IPPROTO_UDP;
-	iph->tos	= ip_tunnel_ecn_encap(tos, old_iph, skb);
-	iph->daddr	= dst;
-	iph->saddr	= fl4.saddr;
-	iph->ttl	= ttl ? : ip4_dst_hoplimit(&rt->dst);
-	tunnel_ip_select_ident(skb, old_iph, &rt->dst);
-
-	nf_reset(skb);
-
 	vxlan_set_owner(dev, skb);
 
 	if (handle_offloads(skb))
 		goto drop;
 
-	iptunnel_xmit(skb, dev);
+	tos = ip_tunnel_ecn_encap(tos, old_iph, skb);
+	ttl = ttl ? : ip4_dst_hoplimit(&rt->dst);
+
+	err = iptunnel_xmit(dev_net(dev), rt, skb, fl4.saddr, dst,
+			    IPPROTO_UDP, tos, ttl, df);
+	iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
+
 	return NETDEV_TX_OK;
 
 drop:
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 1be442f..b84f1ab 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -155,23 +155,27 @@ static inline void tunnel_ip_select_ident(struct sk_buff *skb,
 				  (skb_shinfo(skb)->gso_segs ?: 1) - 1);
 }
 
-static inline void iptunnel_xmit(struct sk_buff *skb, struct net_device *dev)
+int iptunnel_xmit(struct net *net, struct rtable *rt,
+		  struct sk_buff *skb,
+		  __be32 src, __be32 dst, __u8 proto,
+		  __u8 tos, __u8 ttl, __be16 df);
+
+static inline void iptunnel_xmit_stats(int err,
+				       struct net_device_stats *err_stats,
+				       struct pcpu_tstats __percpu *stats)
 {
-	int err;
-	int pkt_len = skb->len - skb_transport_offset(skb);
-	struct pcpu_tstats *tstats = this_cpu_ptr(dev->tstats);
+	if (err > 0) {
+		struct pcpu_tstats *tstats = this_cpu_ptr(stats);
 
-	nf_reset(skb);
-
-	err = ip_local_out(skb);
-	if (likely(net_xmit_eval(err) == 0)) {
 		u64_stats_update_begin(&tstats->syncp);
-		tstats->tx_bytes += pkt_len;
+		tstats->tx_bytes += err;
 		tstats->tx_packets++;
 		u64_stats_update_end(&tstats->syncp);
+	} else if (err < 0) {
+		err_stats->tx_errors++;
+		err_stats->tx_aborted_errors++;
 	} else {
-		dev->stats.tx_errors++;
-		dev->stats.tx_aborted_errors++;
+		err_stats->tx_dropped++;
 	}
 }
 #endif /* __NET_IP_TUNNELS_H */
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index 7fcf810..86ded0b 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -11,7 +11,7 @@ obj-y     := route.o inetpeer.o protocol.o \
 	     tcp_offload.o datagram.o raw.o udp.o udplite.o \
 	     udp_offload.o arp.o icmp.o devinet.o af_inet.o igmp.o \
 	     fib_frontend.o fib_semantics.o fib_trie.o \
-	     inet_fragment.o ping.o
+	     inet_fragment.o ping.o ip_tunnel_core.o
 
 obj-$(CONFIG_NET_IP_TUNNEL) += ip_tunnel.o
 obj-$(CONFIG_SYSCTL) += sysctl_net_ipv4.o
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index e189db4..a06a2ed 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -491,19 +491,17 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	const struct iphdr *inner_iph;
-	struct iphdr *iph;
 	struct flowi4 fl4;
 	u8     tos, ttl;
 	__be16 df;
 	struct rtable *rt;		/* Route to the other host */
-	struct net_device *tdev;	/* Device to other host */
 	unsigned int max_headroom;	/* The extra header space needed */
 	__be32 dst;
 	int mtu;
+	int err;
 
 	inner_iph = (const struct iphdr *)skb_inner_network_header(skb);
 
-	memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
 	dst = tnl_params->daddr;
 	if (dst == 0) {
 		/* NBMA tunnel */
@@ -571,14 +569,11 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 		dev->stats.tx_carrier_errors++;
 		goto tx_error;
 	}
-	tdev = rt->dst.dev;
-
-	if (tdev == dev) {
+	if (rt->dst.dev == dev) {
 		ip_rt_put(rt);
 		dev->stats.collisions++;
 		goto tx_error;
 	}
-
 	df = tnl_params->frag_off;
 
 	if (df)
@@ -596,6 +591,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 		if (!skb_is_gso(skb) &&
 		    (inner_iph->frag_off&htons(IP_DF)) &&
 		     mtu < ntohs(inner_iph->tot_len)) {
+			memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
 			icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
 			ip_rt_put(rt);
 			goto tx_error;
@@ -646,8 +642,8 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 			ttl = ip4_dst_hoplimit(&rt->dst);
 	}
 
-	max_headroom = LL_RESERVED_SPACE(tdev) + sizeof(struct iphdr)
-					       + rt->dst.header_len;
+	max_headroom = LL_RESERVED_SPACE(rt->dst.dev) + sizeof(struct iphdr)
+			+ rt->dst.header_len;
 	if (max_headroom > dev->needed_headroom) {
 		dev->needed_headroom = max_headroom;
 		if (skb_cow_head(skb, dev->needed_headroom)) {
@@ -657,27 +653,11 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 		}
 	}
 
-	skb_dst_drop(skb);
-	skb_dst_set(skb, &rt->dst);
-
-	/* Push down and install the IP header. */
-	skb_push(skb, sizeof(struct iphdr));
-	skb_reset_network_header(skb);
-
-	iph = ip_hdr(skb);
-	inner_iph = (const struct iphdr *)skb_inner_network_header(skb);
+	err = iptunnel_xmit(dev_net(dev), rt, skb,
+			    fl4.saddr, fl4.daddr, protocol,
+			    ip_tunnel_ecn_encap(tos, inner_iph, skb), ttl, df);
+	iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
 
-	iph->version	=	4;
-	iph->ihl	=	sizeof(struct iphdr) >> 2;
-	iph->frag_off	=	df;
-	iph->protocol	=	protocol;
-	iph->tos	=	ip_tunnel_ecn_encap(tos, inner_iph, skb);
-	iph->daddr	=	fl4.daddr;
-	iph->saddr	=	fl4.saddr;
-	iph->ttl	=	ttl;
-	tunnel_ip_select_ident(skb, inner_iph, &rt->dst);
-
-	iptunnel_xmit(skb, dev);
 	return;
 
 #if IS_ENABLED(CONFIG_IPV6)
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
new file mode 100644
index 0000000..927687e
--- /dev/null
+++ b/net/ipv4/ip_tunnel_core.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2013 Nicira, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/in.h>
+#include <linux/if_arp.h>
+#include <linux/mroute.h>
+#include <linux/init.h>
+#include <linux/in6.h>
+#include <linux/inetdevice.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+
+#include <net/ip.h>
+#include <net/icmp.h>
+#include <net/protocol.h>
+#include <net/ip_tunnels.h>
+#include <net/arp.h>
+#include <net/checksum.h>
+#include <net/dsfield.h>
+#include <net/inet_ecn.h>
+#include <net/xfrm.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+#include <net/rtnetlink.h>
+
+int iptunnel_xmit(struct net *net, struct rtable *rt,
+		  struct sk_buff *skb,
+		  __be32 src, __be32 dst, __u8 proto,
+		  __u8 tos, __u8 ttl, __be16 df)
+{
+	int pkt_len = skb->len;
+	struct iphdr *iph;
+	int err;
+
+	nf_reset(skb);
+	secpath_reset(skb);
+	skb->rxhash = 0;
+	skb_dst_drop(skb);
+	skb_dst_set(skb, &rt->dst);
+	memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
+
+	/* Push down and install the IP header. */
+	__skb_push(skb, sizeof(struct iphdr));
+	skb_reset_network_header(skb);
+
+	iph = ip_hdr(skb);
+
+	iph->version	=	4;
+	iph->ihl	=	sizeof(struct iphdr) >> 2;
+	iph->frag_off	=	df;
+	iph->protocol	=	proto;
+	iph->tos	=	tos;
+	iph->daddr	=	dst;
+	iph->saddr	=	src;
+	iph->ttl	=	ttl;
+	tunnel_ip_select_ident(skb,
+			       (const struct iphdr *)skb_inner_network_header(skb),
+			       &rt->dst);
+
+	err = ip_local_out(skb);
+	if (unlikely(net_xmit_eval(err)))
+		pkt_len = 0;
+	return pkt_len;
+}
+EXPORT_SYMBOL_GPL(iptunnel_xmit);
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 6b9c1f12..76bb8de 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -723,13 +723,14 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 	__be16 df = tiph->frag_off;
 	struct rtable *rt;     			/* Route to the other host */
 	struct net_device *tdev;		/* Device to other host */
-	struct iphdr  *iph;			/* Our new IP header */
 	unsigned int max_headroom;		/* The extra header space needed */
 	__be32 dst = tiph->daddr;
 	struct flowi4 fl4;
 	int    mtu;
 	const struct in6_addr *addr6;
 	int addr_type;
+	u8 ttl;
+	int err;
 
 	if (skb->protocol != htons(ETH_P_IPV6))
 		goto tx_error;
@@ -872,34 +873,14 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 		skb = new_skb;
 		iph6 = ipv6_hdr(skb);
 	}
-
-	skb->transport_header = skb->network_header;
-	skb_push(skb, sizeof(struct iphdr));
-	skb_reset_network_header(skb);
-	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
-	IPCB(skb)->flags = 0;
-	skb_dst_drop(skb);
-	skb_dst_set(skb, &rt->dst);
-
-	/*
-	 *	Push down and install the IPIP header.
-	 */
-
-	iph 			=	ip_hdr(skb);
-	iph->version		=	4;
-	iph->ihl		=	sizeof(struct iphdr)>>2;
-	iph->frag_off		=	df;
-	iph->protocol		=	IPPROTO_IPV6;
-	iph->tos		=	INET_ECN_encapsulate(tos, ipv6_get_dsfield(iph6));
-	iph->daddr		=	fl4.daddr;
-	iph->saddr		=	fl4.saddr;
-
-	if ((iph->ttl = tiph->ttl) == 0)
-		iph->ttl	=	iph6->hop_limit;
-
-	skb->ip_summed = CHECKSUM_NONE;
-	ip_select_ident(iph, skb_dst(skb), NULL);
-	iptunnel_xmit(skb, dev);
+	ttl = tiph->ttl;
+	if (ttl == 0)
+		ttl = iph6->hop_limit;
+	tos = INET_ECN_encapsulate(tos, ipv6_get_dsfield(iph6));
+
+	err = iptunnel_xmit(dev_net(dev), rt, skb, fl4.saddr, fl4.daddr,
+			    IPPROTO_IPV6, tos, ttl, df);
+	iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
 	return NETDEV_TX_OK;
 
 tx_error_icmp:
-- 
cgit v0.10.2


From 3d7b46cd20e300bd6989fb1f43d46f1b9645816e Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:50:02 -0700
Subject: ip_tunnel: push generic protocol handling to ip_tunnel module.

Process skb tunnel header before sending packet to protocol handler.
this allows code sharing between gre and ovs gre modules.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index b84f1ab..32e130b 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -155,6 +155,7 @@ static inline void tunnel_ip_select_ident(struct sk_buff *skb,
 				  (skb_shinfo(skb)->gso_segs ?: 1) - 1);
 }
 
+int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);
 int iptunnel_xmit(struct net *net, struct rtable *rt,
 		  struct sk_buff *skb,
 		  __be32 src, __be32 dst, __u8 proto,
diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c
index 5ecc9c4..ba4803e 100644
--- a/net/ipv4/gre.c
+++ b/net/ipv4/gre.c
@@ -201,7 +201,8 @@ static int parse_gre_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 				return -EINVAL;
 		}
 	}
-	return 0;
+
+	return iptunnel_pull_header(skb, hdr_len, tpi->proto);
 }
 
 static int gre_cisco_rcv(struct sk_buff *skb)
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index a06a2ed..bd227e5 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -408,13 +408,6 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,
 	const struct iphdr *iph = ip_hdr(skb);
 	int err;
 
-	secpath_reset(skb);
-
-	skb->protocol = tpi->proto;
-
-	skb->mac_header = skb->network_header;
-	__pskb_pull(skb, tunnel->hlen);
-	skb_postpull_rcsum(skb, skb_transport_header(skb), tunnel->hlen);
 #ifdef CONFIG_NET_IPGRE_BROADCAST
 	if (ipv4_is_multicast(iph->daddr)) {
 		/* Looped back packet, drop it! */
@@ -442,23 +435,6 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,
 		tunnel->i_seqno = ntohl(tpi->seq) + 1;
 	}
 
-	/* Warning: All skb pointers will be invalidated! */
-	if (tunnel->dev->type == ARPHRD_ETHER) {
-		if (!pskb_may_pull(skb, ETH_HLEN)) {
-			tunnel->dev->stats.rx_length_errors++;
-			tunnel->dev->stats.rx_errors++;
-			goto drop;
-		}
-
-		iph = ip_hdr(skb);
-		skb->protocol = eth_type_trans(skb, tunnel->dev);
-		skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
-	}
-
-	skb->pkt_type = PACKET_HOST;
-	__skb_tunnel_rx(skb, tunnel->dev);
-
-	skb_reset_network_header(skb);
 	err = IP_ECN_decapsulate(iph, skb);
 	if (unlikely(err)) {
 		if (log_ecn_error)
@@ -477,6 +453,12 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,
 	tstats->rx_bytes += skb->len;
 	u64_stats_update_end(&tstats->syncp);
 
+	if (tunnel->dev->type == ARPHRD_ETHER) {
+		skb->protocol = eth_type_trans(skb, tunnel->dev);
+		skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
+	} else {
+		skb->dev = tunnel->dev;
+	}
 	gro_cells_receive(&tunnel->gro_cells, skb);
 	return 0;
 
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 927687e..7167b08 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -86,3 +86,37 @@ int iptunnel_xmit(struct net *net, struct rtable *rt,
 	return pkt_len;
 }
 EXPORT_SYMBOL_GPL(iptunnel_xmit);
+
+int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto)
+{
+	if (unlikely(!pskb_may_pull(skb, hdr_len)))
+		return -ENOMEM;
+
+	skb_pull_rcsum(skb, hdr_len);
+
+	if (inner_proto == htons(ETH_P_TEB)) {
+		struct ethhdr *eh = (struct ethhdr *)skb->data;
+
+		if (unlikely(!pskb_may_pull(skb, ETH_HLEN)))
+			return -ENOMEM;
+
+		if (likely(ntohs(eh->h_proto) >= ETH_P_802_3_MIN))
+			skb->protocol = eh->h_proto;
+		else
+			skb->protocol = htons(ETH_P_802_2);
+
+	} else {
+		skb->protocol = inner_proto;
+	}
+
+	nf_reset(skb);
+	secpath_reset(skb);
+	if (!skb->l4_rxhash)
+		skb->rxhash = 0;
+	skb_dst_drop(skb);
+	skb->vlan_tci = 0;
+	skb_set_queue_mapping(skb, 0);
+	skb->pkt_type = PACKET_HOST;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(iptunnel_pull_header);
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 9df7ecd..e6905fb 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -188,8 +188,12 @@ static int ipip_rcv(struct sk_buff *skb)
 	struct net *net = dev_net(skb->dev);
 	struct ip_tunnel_net *itn = net_generic(net, ipip_net_id);
 	struct ip_tunnel *tunnel;
-	const struct iphdr *iph = ip_hdr(skb);
+	const struct iphdr *iph;
 
+	if (iptunnel_pull_header(skb, 0, tpi.proto))
+		goto drop;
+
+	iph = ip_hdr(skb);
 	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
 			iph->saddr, iph->daddr, 0);
 	if (tunnel) {
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 76bb8de..6cee844 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -640,9 +640,14 @@ static const struct tnl_ptk_info tpi = {
 
 static int ipip_rcv(struct sk_buff *skb)
 {
-	const struct iphdr *iph = ip_hdr(skb);
+	const struct iphdr *iph;
 	struct ip_tunnel *tunnel;
 
+	if (iptunnel_pull_header(skb, 0, tpi.proto))
+		goto drop;
+
+	iph = ip_hdr(skb);
+
 	tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev,
 				     iph->saddr, iph->daddr);
 	if (tunnel != NULL) {
-- 
cgit v0.10.2


From 9a628224a61bbcd2b50b3ec96e661fbbb49b619a Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:50:07 -0700
Subject: ip_tunnel: Add dont fragment flag.

This flag will be used by ovs tunneling.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 32e130b..10bbb42 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -73,6 +73,7 @@ struct ip_tunnel {
 #define TUNNEL_REC	__cpu_to_be16(0x20)
 #define TUNNEL_VERSION	__cpu_to_be16(0x40)
 #define TUNNEL_NO_KEY	__cpu_to_be16(0x80)
+#define TUNNEL_DONT_FRAGMENT    __cpu_to_be16(0x0100)
 
 struct tnl_ptk_info {
 	__be16 flags;
-- 
cgit v0.10.2


From 74f84a5726c7d08c27745305e67474b8645c541d Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:50:12 -0700
Subject: openvswitch: Copy individual actions.

Rather than validating actions and then copying all actiaons
in one block, following patch does same operation in single pass.
This validate and copy action one by one. This is required for
ovs tunneling patch.

This patch does not change any functionality.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 0f783d9..f14816b 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -464,16 +464,89 @@ static int flush_flows(struct datapath *dp)
 	return 0;
 }
 
-static int validate_actions(const struct nlattr *attr,
-				const struct sw_flow_key *key, int depth);
+static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa, int attr_len)
+{
+
+	struct sw_flow_actions *acts;
+	int new_acts_size;
+	int req_size = NLA_ALIGN(attr_len);
+	int next_offset = offsetof(struct sw_flow_actions, actions) +
+					(*sfa)->actions_len;
+
+	if (req_size <= (ksize(*sfa) - next_offset))
+		goto out;
+
+	new_acts_size = ksize(*sfa) * 2;
+
+	if (new_acts_size > MAX_ACTIONS_BUFSIZE) {
+		if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size)
+			return ERR_PTR(-EMSGSIZE);
+		new_acts_size = MAX_ACTIONS_BUFSIZE;
+	}
+
+	acts = ovs_flow_actions_alloc(new_acts_size);
+	if (IS_ERR(acts))
+		return (void *)acts;
+
+	memcpy(acts->actions, (*sfa)->actions, (*sfa)->actions_len);
+	acts->actions_len = (*sfa)->actions_len;
+	kfree(*sfa);
+	*sfa = acts;
+
+out:
+	(*sfa)->actions_len += req_size;
+	return  (struct nlattr *) ((unsigned char *)(*sfa) + next_offset);
+}
+
+static int add_action(struct sw_flow_actions **sfa, int attrtype, void *data, int len)
+{
+	struct nlattr *a;
+
+	a = reserve_sfa_size(sfa, nla_attr_size(len));
+	if (IS_ERR(a))
+		return PTR_ERR(a);
+
+	a->nla_type = attrtype;
+	a->nla_len = nla_attr_size(len);
+
+	if (data)
+		memcpy(nla_data(a), data, len);
+	memset((unsigned char *) a + a->nla_len, 0, nla_padlen(len));
+
+	return 0;
+}
+
+static inline int add_nested_action_start(struct sw_flow_actions **sfa, int attrtype)
+{
+	int used = (*sfa)->actions_len;
+	int err;
+
+	err = add_action(sfa, attrtype, NULL, 0);
+	if (err)
+		return err;
+
+	return used;
+}
 
-static int validate_sample(const struct nlattr *attr,
-				const struct sw_flow_key *key, int depth)
+static inline void add_nested_action_end(struct sw_flow_actions *sfa, int st_offset)
+{
+	struct nlattr *a = (struct nlattr *) ((unsigned char *)sfa->actions + st_offset);
+
+	a->nla_len = sfa->actions_len - st_offset;
+}
+
+static int validate_and_copy_actions(const struct nlattr *attr,
+				     const struct sw_flow_key *key, int depth,
+				     struct sw_flow_actions **sfa);
+
+static int validate_and_copy_sample(const struct nlattr *attr,
+				    const struct sw_flow_key *key, int depth,
+				    struct sw_flow_actions **sfa)
 {
 	const struct nlattr *attrs[OVS_SAMPLE_ATTR_MAX + 1];
 	const struct nlattr *probability, *actions;
 	const struct nlattr *a;
-	int rem;
+	int rem, start, err, st_acts;
 
 	memset(attrs, 0, sizeof(attrs));
 	nla_for_each_nested(a, attr, rem) {
@@ -492,7 +565,26 @@ static int validate_sample(const struct nlattr *attr,
 	actions = attrs[OVS_SAMPLE_ATTR_ACTIONS];
 	if (!actions || (nla_len(actions) && nla_len(actions) < NLA_HDRLEN))
 		return -EINVAL;
-	return validate_actions(actions, key, depth + 1);
+
+	/* validation done, copy sample action. */
+	start = add_nested_action_start(sfa, OVS_ACTION_ATTR_SAMPLE);
+	if (start < 0)
+		return start;
+	err = add_action(sfa, OVS_SAMPLE_ATTR_PROBABILITY, nla_data(probability), sizeof(u32));
+	if (err)
+		return err;
+	st_acts = add_nested_action_start(sfa, OVS_SAMPLE_ATTR_ACTIONS);
+	if (st_acts < 0)
+		return st_acts;
+
+	err = validate_and_copy_actions(actions, key, depth + 1, sfa);
+	if (err)
+		return err;
+
+	add_nested_action_end(*sfa, st_acts);
+	add_nested_action_end(*sfa, start);
+
+	return 0;
 }
 
 static int validate_tp_port(const struct sw_flow_key *flow_key)
@@ -606,8 +698,24 @@ static int validate_userspace(const struct nlattr *attr)
 	return 0;
 }
 
-static int validate_actions(const struct nlattr *attr,
-				const struct sw_flow_key *key,  int depth)
+static int copy_action(const struct nlattr *from,
+		       struct sw_flow_actions **sfa)
+{
+	int totlen = NLA_ALIGN(from->nla_len);
+	struct nlattr *to;
+
+	to = reserve_sfa_size(sfa, from->nla_len);
+	if (IS_ERR(to))
+		return PTR_ERR(to);
+
+	memcpy(to, from, totlen);
+	return 0;
+}
+
+static int validate_and_copy_actions(const struct nlattr *attr,
+				     const struct sw_flow_key *key,
+				     int depth,
+				     struct sw_flow_actions **sfa)
 {
 	const struct nlattr *a;
 	int rem, err;
@@ -627,12 +735,14 @@ static int validate_actions(const struct nlattr *attr,
 		};
 		const struct ovs_action_push_vlan *vlan;
 		int type = nla_type(a);
+		bool skip_copy;
 
 		if (type > OVS_ACTION_ATTR_MAX ||
 		    (action_lens[type] != nla_len(a) &&
 		     action_lens[type] != (u32)-1))
 			return -EINVAL;
 
+		skip_copy = false;
 		switch (type) {
 		case OVS_ACTION_ATTR_UNSPEC:
 			return -EINVAL;
@@ -667,14 +777,20 @@ static int validate_actions(const struct nlattr *attr,
 			break;
 
 		case OVS_ACTION_ATTR_SAMPLE:
-			err = validate_sample(a, key, depth);
+			err = validate_and_copy_sample(a, key, depth, sfa);
 			if (err)
 				return err;
+			skip_copy = true;
 			break;
 
 		default:
 			return -EINVAL;
 		}
+		if (!skip_copy) {
+			err = copy_action(a, sfa);
+			if (err)
+				return err;
+		}
 	}
 
 	if (rem > 0)
@@ -742,18 +858,16 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
 	err = ovs_flow_metadata_from_nlattrs(flow, a[OVS_PACKET_ATTR_KEY]);
 	if (err)
 		goto err_flow_free;
-
-	err = validate_actions(a[OVS_PACKET_ATTR_ACTIONS], &flow->key, 0);
-	if (err)
-		goto err_flow_free;
-
 	flow->hash = ovs_flow_hash(&flow->key, key_len);
-
-	acts = ovs_flow_actions_alloc(a[OVS_PACKET_ATTR_ACTIONS]);
+	acts = ovs_flow_actions_alloc(nla_len(a[OVS_PACKET_ATTR_ACTIONS]));
 	err = PTR_ERR(acts);
 	if (IS_ERR(acts))
 		goto err_flow_free;
+
+	err = validate_and_copy_actions(a[OVS_PACKET_ATTR_ACTIONS], &flow->key, 0, &acts);
 	rcu_assign_pointer(flow->sf_acts, acts);
+	if (err)
+		goto err_flow_free;
 
 	OVS_CB(packet)->flow = flow;
 	packet->priority = flow->key.phy.priority;
@@ -843,6 +957,66 @@ static struct genl_multicast_group ovs_dp_flow_multicast_group = {
 	.name = OVS_FLOW_MCGROUP
 };
 
+static int actions_to_attr(const struct nlattr *attr, int len, struct sk_buff *skb);
+static int sample_action_to_attr(const struct nlattr *attr, struct sk_buff *skb)
+{
+	const struct nlattr *a;
+	struct nlattr *start;
+	int err = 0, rem;
+
+	start = nla_nest_start(skb, OVS_ACTION_ATTR_SAMPLE);
+	if (!start)
+		return -EMSGSIZE;
+
+	nla_for_each_nested(a, attr, rem) {
+		int type = nla_type(a);
+		struct nlattr *st_sample;
+
+		switch (type) {
+		case OVS_SAMPLE_ATTR_PROBABILITY:
+			if (nla_put(skb, OVS_SAMPLE_ATTR_PROBABILITY, sizeof(u32), nla_data(a)))
+				return -EMSGSIZE;
+			break;
+		case OVS_SAMPLE_ATTR_ACTIONS:
+			st_sample = nla_nest_start(skb, OVS_SAMPLE_ATTR_ACTIONS);
+			if (!st_sample)
+				return -EMSGSIZE;
+			err = actions_to_attr(nla_data(a), nla_len(a), skb);
+			if (err)
+				return err;
+			nla_nest_end(skb, st_sample);
+			break;
+		}
+	}
+
+	nla_nest_end(skb, start);
+	return err;
+}
+
+static int actions_to_attr(const struct nlattr *attr, int len, struct sk_buff *skb)
+{
+	const struct nlattr *a;
+	int rem, err;
+
+	nla_for_each_attr(a, attr, len, rem) {
+		int type = nla_type(a);
+
+		switch (type) {
+		case OVS_ACTION_ATTR_SAMPLE:
+			err = sample_action_to_attr(a, skb);
+			if (err)
+				return err;
+			break;
+		default:
+			if (nla_put(skb, type, nla_len(a), nla_data(a)))
+				return -EMSGSIZE;
+			break;
+		}
+	}
+
+	return 0;
+}
+
 static size_t ovs_flow_cmd_msg_size(const struct sw_flow_actions *acts)
 {
 	return NLMSG_ALIGN(sizeof(struct ovs_header))
@@ -860,6 +1034,7 @@ static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
 {
 	const int skb_orig_len = skb->len;
 	const struct sw_flow_actions *sf_acts;
+	struct nlattr *start;
 	struct ovs_flow_stats stats;
 	struct ovs_header *ovs_header;
 	struct nlattr *nla;
@@ -913,10 +1088,19 @@ static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
 	 * This can only fail for dump operations because the skb is always
 	 * properly sized for single flows.
 	 */
-	err = nla_put(skb, OVS_FLOW_ATTR_ACTIONS, sf_acts->actions_len,
-		      sf_acts->actions);
-	if (err < 0 && skb_orig_len)
-		goto error;
+	start = nla_nest_start(skb, OVS_FLOW_ATTR_ACTIONS);
+	if (start) {
+		err = actions_to_attr(sf_acts->actions, sf_acts->actions_len, skb);
+		if (!err)
+			nla_nest_end(skb, start);
+		else {
+			if (skb_orig_len)
+				goto error;
+
+			nla_nest_cancel(skb, start);
+		}
+	} else if (skb_orig_len)
+		goto nla_put_failure;
 
 	return genlmsg_end(skb, ovs_header);
 
@@ -961,6 +1145,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	struct sk_buff *reply;
 	struct datapath *dp;
 	struct flow_table *table;
+	struct sw_flow_actions *acts = NULL;
 	int error;
 	int key_len;
 
@@ -974,9 +1159,14 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 
 	/* Validate actions. */
 	if (a[OVS_FLOW_ATTR_ACTIONS]) {
-		error = validate_actions(a[OVS_FLOW_ATTR_ACTIONS], &key,  0);
-		if (error)
+		acts = ovs_flow_actions_alloc(nla_len(a[OVS_FLOW_ATTR_ACTIONS]));
+		error = PTR_ERR(acts);
+		if (IS_ERR(acts))
 			goto error;
+
+		error = validate_and_copy_actions(a[OVS_FLOW_ATTR_ACTIONS], &key,  0, &acts);
+		if (error)
+			goto err_kfree;
 	} else if (info->genlhdr->cmd == OVS_FLOW_CMD_NEW) {
 		error = -EINVAL;
 		goto error;
@@ -991,8 +1181,6 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	table = ovsl_dereference(dp->table);
 	flow = ovs_flow_tbl_lookup(table, &key, key_len);
 	if (!flow) {
-		struct sw_flow_actions *acts;
-
 		/* Bail out if we're not allowed to create a new flow. */
 		error = -ENOENT;
 		if (info->genlhdr->cmd == OVS_FLOW_CMD_SET)
@@ -1019,11 +1207,6 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 		flow->key = key;
 		clear_stats(flow);
 
-		/* Obtain actions. */
-		acts = ovs_flow_actions_alloc(a[OVS_FLOW_ATTR_ACTIONS]);
-		error = PTR_ERR(acts);
-		if (IS_ERR(acts))
-			goto error_free_flow;
 		rcu_assign_pointer(flow->sf_acts, acts);
 
 		/* Put flow in bucket. */
@@ -1036,7 +1219,6 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	} else {
 		/* We found a matching flow. */
 		struct sw_flow_actions *old_acts;
-		struct nlattr *acts_attrs;
 
 		/* Bail out if we're not allowed to modify an existing flow.
 		 * We accept NLM_F_CREATE in place of the intended NLM_F_EXCL
@@ -1051,21 +1233,8 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 
 		/* Update actions. */
 		old_acts = ovsl_dereference(flow->sf_acts);
-		acts_attrs = a[OVS_FLOW_ATTR_ACTIONS];
-		if (acts_attrs &&
-		   (old_acts->actions_len != nla_len(acts_attrs) ||
-		   memcmp(old_acts->actions, nla_data(acts_attrs),
-			  old_acts->actions_len))) {
-			struct sw_flow_actions *new_acts;
-
-			new_acts = ovs_flow_actions_alloc(acts_attrs);
-			error = PTR_ERR(new_acts);
-			if (IS_ERR(new_acts))
-				goto err_unlock_ovs;
-
-			rcu_assign_pointer(flow->sf_acts, new_acts);
-			ovs_flow_deferred_free_acts(old_acts);
-		}
+		rcu_assign_pointer(flow->sf_acts, acts);
+		ovs_flow_deferred_free_acts(old_acts);
 
 		reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
 					       info->snd_seq, OVS_FLOW_CMD_NEW);
@@ -1086,10 +1255,10 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 				ovs_dp_flow_multicast_group.id, PTR_ERR(reply));
 	return 0;
 
-error_free_flow:
-	ovs_flow_free(flow);
 err_unlock_ovs:
 	ovs_unlock();
+err_kfree:
+	kfree(acts);
 error:
 	return error;
 }
@@ -1866,8 +2035,8 @@ static int ovs_vport_cmd_del(struct sk_buff *skb, struct genl_info *info)
 		goto exit_unlock;
 	}
 
-	reply = ovs_vport_cmd_build_info(vport, info->snd_portid, info->snd_seq,
-					 OVS_VPORT_CMD_DEL);
+	reply = ovs_vport_cmd_build_info(vport, info->snd_portid,
+					 info->snd_seq, OVS_VPORT_CMD_DEL);
 	err = PTR_ERR(reply);
 	if (IS_ERR(reply))
 		goto exit_unlock;
@@ -1896,8 +2065,8 @@ static int ovs_vport_cmd_get(struct sk_buff *skb, struct genl_info *info)
 	if (IS_ERR(vport))
 		goto exit_unlock;
 
-	reply = ovs_vport_cmd_build_info(vport, info->snd_portid, info->snd_seq,
-					 OVS_VPORT_CMD_NEW);
+	reply = ovs_vport_cmd_build_info(vport, info->snd_portid,
+					 info->snd_seq, OVS_VPORT_CMD_NEW);
 	err = PTR_ERR(reply);
 	if (IS_ERR(reply))
 		goto exit_unlock;
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 093c191..940d4b8 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -198,20 +198,18 @@ void ovs_flow_used(struct sw_flow *flow, struct sk_buff *skb)
 	spin_unlock(&flow->lock);
 }
 
-struct sw_flow_actions *ovs_flow_actions_alloc(const struct nlattr *actions)
+struct sw_flow_actions *ovs_flow_actions_alloc(int size)
 {
-	int actions_len = nla_len(actions);
 	struct sw_flow_actions *sfa;
 
-	if (actions_len > MAX_ACTIONS_BUFSIZE)
+	if (size > MAX_ACTIONS_BUFSIZE)
 		return ERR_PTR(-EINVAL);
 
-	sfa = kmalloc(sizeof(*sfa) + actions_len, GFP_KERNEL);
+	sfa = kmalloc(sizeof(*sfa) + size, GFP_KERNEL);
 	if (!sfa)
 		return ERR_PTR(-ENOMEM);
 
-	sfa->actions_len = actions_len;
-	nla_memcpy(sfa->actions, actions, actions_len);
+	sfa->actions_len = 0;
 	return sfa;
 }
 
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 2a83e21..e370f62 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -130,7 +130,7 @@ struct sw_flow *ovs_flow_alloc(void);
 void ovs_flow_deferred_free(struct sw_flow *);
 void ovs_flow_free(struct sw_flow *flow);
 
-struct sw_flow_actions *ovs_flow_actions_alloc(const struct nlattr *);
+struct sw_flow_actions *ovs_flow_actions_alloc(int actions_len);
 void ovs_flow_deferred_free_acts(struct sw_flow_actions *);
 
 int ovs_flow_extract(struct sk_buff *, u16 in_port, struct sw_flow_key *,
-- 
cgit v0.10.2


From 7d5437c709ded4f152cb8b305d17972d6707f20c Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:50:18 -0700
Subject: openvswitch: Add tunneling interface.

Add ovs tunnel interface for set tunnel action for userspace.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 424672d..b15a445 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -246,11 +246,29 @@ enum ovs_key_attr {
 	OVS_KEY_ATTR_ARP,       /* struct ovs_key_arp */
 	OVS_KEY_ATTR_ND,        /* struct ovs_key_nd */
 	OVS_KEY_ATTR_SKB_MARK,  /* u32 skb mark */
+	OVS_KEY_ATTR_TUNNEL,    /* Nested set of ovs_tunnel attributes */
+
+#ifdef __KERNEL__
+	OVS_KEY_ATTR_IPV4_TUNNEL,  /* struct ovs_key_ipv4_tunnel */
+#endif
 	__OVS_KEY_ATTR_MAX
 };
 
 #define OVS_KEY_ATTR_MAX (__OVS_KEY_ATTR_MAX - 1)
 
+enum ovs_tunnel_key_attr {
+	OVS_TUNNEL_KEY_ATTR_ID,                 /* be64 Tunnel ID */
+	OVS_TUNNEL_KEY_ATTR_IPV4_SRC,           /* be32 src IP address. */
+	OVS_TUNNEL_KEY_ATTR_IPV4_DST,           /* be32 dst IP address. */
+	OVS_TUNNEL_KEY_ATTR_TOS,                /* u8 Tunnel IP ToS. */
+	OVS_TUNNEL_KEY_ATTR_TTL,                /* u8 Tunnel IP TTL. */
+	OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT,      /* No argument, set DF. */
+	OVS_TUNNEL_KEY_ATTR_CSUM,               /* No argument. CSUM packet. */
+	__OVS_TUNNEL_KEY_ATTR_MAX
+};
+
+#define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1)
+
 /**
  * enum ovs_frag_type - IPv4 and IPv6 fragment type
  * @OVS_FRAG_TYPE_NONE: Packet is not a fragment.
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 596d637..22c5f39 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -436,6 +436,10 @@ static int execute_set_action(struct sk_buff *skb,
 		skb->mark = nla_get_u32(nested_attr);
 		break;
 
+	case OVS_KEY_ATTR_IPV4_TUNNEL:
+		OVS_CB(skb)->tun_key = nla_data(nested_attr);
+		break;
+
 	case OVS_KEY_ATTR_ETHERNET:
 		err = set_eth_addr(skb, nla_data(nested_attr));
 		break;
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index f14816b..bbd3106 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -362,6 +362,14 @@ static int queue_gso_packets(struct net *net, int dp_ifindex,
 static size_t key_attr_size(void)
 {
 	return    nla_total_size(4)   /* OVS_KEY_ATTR_PRIORITY */
+		+ nla_total_size(0)   /* OVS_KEY_ATTR_TUNNEL */
+		  + nla_total_size(8)   /* OVS_TUNNEL_KEY_ATTR_ID */
+		  + nla_total_size(4)   /* OVS_TUNNEL_KEY_ATTR_IPV4_SRC */
+		  + nla_total_size(4)   /* OVS_TUNNEL_KEY_ATTR_IPV4_DST */
+		  + nla_total_size(1)   /* OVS_TUNNEL_KEY_ATTR_TOS */
+		  + nla_total_size(1)   /* OVS_TUNNEL_KEY_ATTR_TTL */
+		  + nla_total_size(0)   /* OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT */
+		  + nla_total_size(0)   /* OVS_TUNNEL_KEY_ATTR_CSUM */
 		+ nla_total_size(4)   /* OVS_KEY_ATTR_IN_PORT */
 		+ nla_total_size(4)   /* OVS_KEY_ATTR_SKB_MARK */
 		+ nla_total_size(12)  /* OVS_KEY_ATTR_ETHERNET */
@@ -600,8 +608,30 @@ static int validate_tp_port(const struct sw_flow_key *flow_key)
 	return -EINVAL;
 }
 
+static int validate_and_copy_set_tun(const struct nlattr *attr,
+				     struct sw_flow_actions **sfa)
+{
+	struct ovs_key_ipv4_tunnel tun_key;
+	int err, start;
+
+	err = ovs_ipv4_tun_from_nlattr(nla_data(attr), &tun_key);
+	if (err)
+		return err;
+
+	start = add_nested_action_start(sfa, OVS_ACTION_ATTR_SET);
+	if (start < 0)
+		return start;
+
+	err = add_action(sfa, OVS_KEY_ATTR_IPV4_TUNNEL, &tun_key, sizeof(tun_key));
+	add_nested_action_end(*sfa, start);
+
+	return err;
+}
+
 static int validate_set(const struct nlattr *a,
-			const struct sw_flow_key *flow_key)
+			const struct sw_flow_key *flow_key,
+			struct sw_flow_actions **sfa,
+			bool *set_tun)
 {
 	const struct nlattr *ovs_key = nla_data(a);
 	int key_type = nla_type(ovs_key);
@@ -611,18 +641,27 @@ static int validate_set(const struct nlattr *a,
 		return -EINVAL;
 
 	if (key_type > OVS_KEY_ATTR_MAX ||
-	    nla_len(ovs_key) != ovs_key_lens[key_type])
+	   (ovs_key_lens[key_type] != nla_len(ovs_key) &&
+	    ovs_key_lens[key_type] != -1))
 		return -EINVAL;
 
 	switch (key_type) {
 	const struct ovs_key_ipv4 *ipv4_key;
 	const struct ovs_key_ipv6 *ipv6_key;
+	int err;
 
 	case OVS_KEY_ATTR_PRIORITY:
 	case OVS_KEY_ATTR_SKB_MARK:
 	case OVS_KEY_ATTR_ETHERNET:
 		break;
 
+	case OVS_KEY_ATTR_TUNNEL:
+		*set_tun = true;
+		err = validate_and_copy_set_tun(a, sfa);
+		if (err)
+			return err;
+		break;
+
 	case OVS_KEY_ATTR_IPV4:
 		if (flow_key->eth.type != htons(ETH_P_IP))
 			return -EINVAL;
@@ -771,7 +810,7 @@ static int validate_and_copy_actions(const struct nlattr *attr,
 			break;
 
 		case OVS_ACTION_ATTR_SET:
-			err = validate_set(a, key);
+			err = validate_set(a, key, sfa, &skip_copy);
 			if (err)
 				return err;
 			break;
@@ -993,6 +1032,33 @@ static int sample_action_to_attr(const struct nlattr *attr, struct sk_buff *skb)
 	return err;
 }
 
+static int set_action_to_attr(const struct nlattr *a, struct sk_buff *skb)
+{
+	const struct nlattr *ovs_key = nla_data(a);
+	int key_type = nla_type(ovs_key);
+	struct nlattr *start;
+	int err;
+
+	switch (key_type) {
+	case OVS_KEY_ATTR_IPV4_TUNNEL:
+		start = nla_nest_start(skb, OVS_ACTION_ATTR_SET);
+		if (!start)
+			return -EMSGSIZE;
+
+		err = ovs_ipv4_tun_to_nlattr(skb, nla_data(ovs_key));
+		if (err)
+			return err;
+		nla_nest_end(skb, start);
+		break;
+	default:
+		if (nla_put(skb, OVS_ACTION_ATTR_SET, nla_len(a), ovs_key))
+			return -EMSGSIZE;
+		break;
+	}
+
+	return 0;
+}
+
 static int actions_to_attr(const struct nlattr *attr, int len, struct sk_buff *skb)
 {
 	const struct nlattr *a;
@@ -1002,6 +1068,12 @@ static int actions_to_attr(const struct nlattr *attr, int len, struct sk_buff *s
 		int type = nla_type(a);
 
 		switch (type) {
+		case OVS_ACTION_ATTR_SET:
+			err = set_action_to_attr(a, skb);
+			if (err)
+				return err;
+			break;
+
 		case OVS_ACTION_ATTR_SAMPLE:
 			err = sample_action_to_attr(a, skb);
 			if (err)
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index 16b8406..e88ebc2 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -88,9 +88,12 @@ struct datapath {
 /**
  * struct ovs_skb_cb - OVS data in skb CB
  * @flow: The flow associated with this packet.  May be %NULL if no flow.
+ * @tun_key: Key for the tunnel that encapsulated this packet. NULL if the
+ * packet is not being tunneled.
  */
 struct ovs_skb_cb {
 	struct sw_flow		*flow;
+	struct ovs_key_ipv4_tunnel  *tun_key;
 };
 #define OVS_CB(skb) ((struct ovs_skb_cb *)(skb)->cb)
 
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 940d4b8..976a8b7 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -40,6 +40,7 @@
 #include <linux/icmpv6.h>
 #include <linux/rculist.h>
 #include <net/ip.h>
+#include <net/ip_tunnels.h>
 #include <net/ipv6.h>
 #include <net/ndisc.h>
 
@@ -603,6 +604,8 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key,
 	memset(key, 0, sizeof(*key));
 
 	key->phy.priority = skb->priority;
+	if (OVS_CB(skb)->tun_key)
+		memcpy(&key->tun_key, OVS_CB(skb)->tun_key, sizeof(key->tun_key));
 	key->phy.in_port = in_port;
 	key->phy.skb_mark = skb->mark;
 
@@ -818,6 +821,7 @@ const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1] = {
 	[OVS_KEY_ATTR_ICMPV6] = sizeof(struct ovs_key_icmpv6),
 	[OVS_KEY_ATTR_ARP] = sizeof(struct ovs_key_arp),
 	[OVS_KEY_ATTR_ND] = sizeof(struct ovs_key_nd),
+	[OVS_KEY_ATTR_TUNNEL] = -1,
 };
 
 static int ipv4_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_len,
@@ -955,6 +959,105 @@ static int parse_flow_nlattrs(const struct nlattr *attr,
 	return 0;
 }
 
+int ovs_ipv4_tun_from_nlattr(const struct nlattr *attr,
+			     struct ovs_key_ipv4_tunnel *tun_key)
+{
+	struct nlattr *a;
+	int rem;
+	bool ttl = false;
+
+	memset(tun_key, 0, sizeof(*tun_key));
+
+	nla_for_each_nested(a, attr, rem) {
+		int type = nla_type(a);
+		static const u32 ovs_tunnel_key_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1] = {
+			[OVS_TUNNEL_KEY_ATTR_ID] = sizeof(u64),
+			[OVS_TUNNEL_KEY_ATTR_IPV4_SRC] = sizeof(u32),
+			[OVS_TUNNEL_KEY_ATTR_IPV4_DST] = sizeof(u32),
+			[OVS_TUNNEL_KEY_ATTR_TOS] = 1,
+			[OVS_TUNNEL_KEY_ATTR_TTL] = 1,
+			[OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT] = 0,
+			[OVS_TUNNEL_KEY_ATTR_CSUM] = 0,
+		};
+
+		if (type > OVS_TUNNEL_KEY_ATTR_MAX ||
+			ovs_tunnel_key_lens[type] != nla_len(a))
+			return -EINVAL;
+
+		switch (type) {
+		case OVS_TUNNEL_KEY_ATTR_ID:
+			tun_key->tun_id = nla_get_be64(a);
+			tun_key->tun_flags |= TUNNEL_KEY;
+			break;
+		case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
+			tun_key->ipv4_src = nla_get_be32(a);
+			break;
+		case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
+			tun_key->ipv4_dst = nla_get_be32(a);
+			break;
+		case OVS_TUNNEL_KEY_ATTR_TOS:
+			tun_key->ipv4_tos = nla_get_u8(a);
+			break;
+		case OVS_TUNNEL_KEY_ATTR_TTL:
+			tun_key->ipv4_ttl = nla_get_u8(a);
+			ttl = true;
+			break;
+		case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
+			tun_key->tun_flags |= TUNNEL_DONT_FRAGMENT;
+			break;
+		case OVS_TUNNEL_KEY_ATTR_CSUM:
+			tun_key->tun_flags |= TUNNEL_CSUM;
+			break;
+		default:
+			return -EINVAL;
+
+		}
+	}
+	if (rem > 0)
+		return -EINVAL;
+
+	if (!tun_key->ipv4_dst)
+		return -EINVAL;
+
+	if (!ttl)
+		return -EINVAL;
+
+	return 0;
+}
+
+int ovs_ipv4_tun_to_nlattr(struct sk_buff *skb,
+			   const struct ovs_key_ipv4_tunnel *tun_key)
+{
+	struct nlattr *nla;
+
+	nla = nla_nest_start(skb, OVS_KEY_ATTR_TUNNEL);
+	if (!nla)
+		return -EMSGSIZE;
+
+	if (tun_key->tun_flags & TUNNEL_KEY &&
+	    nla_put_be64(skb, OVS_TUNNEL_KEY_ATTR_ID, tun_key->tun_id))
+		return -EMSGSIZE;
+	if (tun_key->ipv4_src &&
+	    nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, tun_key->ipv4_src))
+		return -EMSGSIZE;
+	if (nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_DST, tun_key->ipv4_dst))
+		return -EMSGSIZE;
+	if (tun_key->ipv4_tos &&
+	    nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TOS, tun_key->ipv4_tos))
+		return -EMSGSIZE;
+	if (nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TTL, tun_key->ipv4_ttl))
+		return -EMSGSIZE;
+	if ((tun_key->tun_flags & TUNNEL_DONT_FRAGMENT) &&
+		nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT))
+		return -EMSGSIZE;
+	if ((tun_key->tun_flags & TUNNEL_CSUM) &&
+		nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_CSUM))
+		return -EMSGSIZE;
+
+	nla_nest_end(skb, nla);
+	return 0;
+}
+
 /**
  * ovs_flow_from_nlattrs - parses Netlink attributes into a flow key.
  * @swkey: receives the extracted flow key.
@@ -997,6 +1100,14 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 		attrs &= ~(1 << OVS_KEY_ATTR_SKB_MARK);
 	}
 
+	if (attrs & (1 << OVS_KEY_ATTR_TUNNEL)) {
+		err = ovs_ipv4_tun_from_nlattr(a[OVS_KEY_ATTR_TUNNEL], &swkey->tun_key);
+		if (err)
+			return err;
+
+		attrs &= ~(1 << OVS_KEY_ATTR_TUNNEL);
+	}
+
 	/* Data attributes. */
 	if (!(attrs & (1 << OVS_KEY_ATTR_ETHERNET)))
 		return -EINVAL;
@@ -1135,17 +1246,21 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
 				   const struct nlattr *attr)
 {
+	struct ovs_key_ipv4_tunnel *tun_key = &flow->key.tun_key;
 	const struct nlattr *nla;
 	int rem;
 
 	flow->key.phy.in_port = DP_MAX_PORTS;
 	flow->key.phy.priority = 0;
 	flow->key.phy.skb_mark = 0;
+	memset(tun_key, 0, sizeof(flow->key.tun_key));
 
 	nla_for_each_nested(nla, attr, rem) {
 		int type = nla_type(nla);
 
 		if (type <= OVS_KEY_ATTR_MAX && ovs_key_lens[type] > 0) {
+			int err;
+
 			if (nla_len(nla) != ovs_key_lens[type])
 				return -EINVAL;
 
@@ -1154,6 +1269,12 @@ int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
 				flow->key.phy.priority = nla_get_u32(nla);
 				break;
 
+			case OVS_KEY_ATTR_TUNNEL:
+				err = ovs_ipv4_tun_from_nlattr(nla, tun_key);
+				if (err)
+					return err;
+				break;
+
 			case OVS_KEY_ATTR_IN_PORT:
 				if (nla_get_u32(nla) >= DP_MAX_PORTS)
 					return -EINVAL;
@@ -1180,6 +1301,10 @@ int ovs_flow_to_nlattrs(const struct sw_flow_key *swkey, struct sk_buff *skb)
 	    nla_put_u32(skb, OVS_KEY_ATTR_PRIORITY, swkey->phy.priority))
 		goto nla_put_failure;
 
+	if (swkey->tun_key.ipv4_dst &&
+	    ovs_ipv4_tun_to_nlattr(skb, &swkey->tun_key))
+		goto nla_put_failure;
+
 	if (swkey->phy.in_port != DP_MAX_PORTS &&
 	    nla_put_u32(skb, OVS_KEY_ATTR_IN_PORT, swkey->phy.in_port))
 		goto nla_put_failure;
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index e370f62..aec5e43 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -40,7 +40,22 @@ struct sw_flow_actions {
 	struct nlattr actions[];
 };
 
+/* Used to memset ovs_key_ipv4_tunnel padding. */
+#define OVS_TUNNEL_KEY_SIZE					\
+	(offsetof(struct ovs_key_ipv4_tunnel, ipv4_ttl) +	\
+	FIELD_SIZEOF(struct ovs_key_ipv4_tunnel, ipv4_ttl))
+
+struct ovs_key_ipv4_tunnel {
+	__be64 tun_id;
+	__be32 ipv4_src;
+	__be32 ipv4_dst;
+	u16  tun_flags;
+	u8   ipv4_tos;
+	u8   ipv4_ttl;
+};
+
 struct sw_flow_key {
+	struct ovs_key_ipv4_tunnel tun_key;  /* Encapsulating tunnel key. */
 	struct {
 		u32	priority;	/* Packet QoS priority. */
 		u32	skb_mark;	/* SKB mark. */
@@ -179,5 +194,9 @@ u32 ovs_flow_hash(const struct sw_flow_key *key, int key_len);
 
 struct sw_flow *ovs_flow_tbl_next(struct flow_table *table, u32 *bucket, u32 *idx);
 extern const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1];
+int ovs_ipv4_tun_from_nlattr(const struct nlattr *attr,
+			 struct ovs_key_ipv4_tunnel *tun_key);
+int ovs_ipv4_tun_to_nlattr(struct sk_buff *skb,
+			const struct ovs_key_ipv4_tunnel *tun_key);
 
 #endif /* flow.h */
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index e284c7e..98d3edb 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -67,7 +67,7 @@ static struct rtnl_link_stats64 *internal_dev_get_stats(struct net_device *netde
 static int internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	rcu_read_lock();
-	ovs_vport_receive(internal_dev_priv(netdev)->vport, skb);
+	ovs_vport_receive(internal_dev_priv(netdev)->vport, skb, NULL);
 	rcu_read_unlock();
 	return 0;
 }
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 40de815..5982f3f 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -51,7 +51,7 @@ static void netdev_port_receive(struct vport *vport, struct sk_buff *skb)
 	skb_push(skb, ETH_HLEN);
 	ovs_skb_postpush_rcsum(skb, skb->data, ETH_HLEN);
 
-	ovs_vport_receive(vport, skb);
+	ovs_vport_receive(vport, skb, NULL);
 	return;
 
 error:
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 176d449..413287a 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -325,7 +325,8 @@ int ovs_vport_get_options(const struct vport *vport, struct sk_buff *skb)
  * Must be called with rcu_read_lock.  The packet cannot be shared and
  * skb->data should point to the Ethernet header.
  */
-void ovs_vport_receive(struct vport *vport, struct sk_buff *skb)
+void ovs_vport_receive(struct vport *vport, struct sk_buff *skb,
+		       struct ovs_key_ipv4_tunnel *tun_key)
 {
 	struct pcpu_tstats *stats;
 
@@ -335,6 +336,7 @@ void ovs_vport_receive(struct vport *vport, struct sk_buff *skb)
 	stats->rx_bytes += skb->len;
 	u64_stats_update_end(&stats->syncp);
 
+	OVS_CB(skb)->tun_key = tun_key;
 	ovs_dp_process_received_packet(vport, skb);
 }
 
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index 293278c..2d961ae 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -184,7 +184,8 @@ static inline struct vport *vport_from_priv(const void *priv)
 	return (struct vport *)(priv - ALIGN(sizeof(struct vport), VPORT_ALIGN));
 }
 
-void ovs_vport_receive(struct vport *, struct sk_buff *);
+void ovs_vport_receive(struct vport *, struct sk_buff *,
+		       struct ovs_key_ipv4_tunnel *);
 void ovs_vport_record_error(struct vport *, enum vport_err_type err_type);
 
 /* List of statically compiled vport implementations.  Don't forget to also
-- 
cgit v0.10.2


From ffe3f4321745e743dd179ec2b12180c01ba0d3aa Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:50:23 -0700
Subject: openvswitch: Expand action buffer size.

MAX_ACTIONS_BUFSIZE limits action list size, set tunnel action
needs extra space on action list, for now increase max actions list limit.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index aec5e43..bfe80b9 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -159,7 +159,7 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
 				  const struct nlattr *attr);
 
-#define MAX_ACTIONS_BUFSIZE    (16 * 1024)
+#define MAX_ACTIONS_BUFSIZE    (32 * 1024)
 #define TBL_MIN_BUCKETS		1024
 
 struct flow_table {
-- 
cgit v0.10.2


From a3e82996a8874c4cfe8c7f1be4d552018d8cba7e Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:50:28 -0700
Subject: openvswitch: Optimize flow key match for non tunnel flows.

Following patch adds start offset for sw_flow-key, so that we can
skip tunneling information in key for non-tunnel flows.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index bbd3106..f7e3a0d 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -894,10 +894,9 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto err_flow_free;
 
-	err = ovs_flow_metadata_from_nlattrs(flow, a[OVS_PACKET_ATTR_KEY]);
+	err = ovs_flow_metadata_from_nlattrs(flow, key_len, a[OVS_PACKET_ATTR_KEY]);
 	if (err)
 		goto err_flow_free;
-	flow->hash = ovs_flow_hash(&flow->key, key_len);
 	acts = ovs_flow_actions_alloc(nla_len(a[OVS_PACKET_ATTR_ACTIONS]));
 	err = PTR_ERR(acts);
 	if (IS_ERR(acts))
@@ -1276,14 +1275,12 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 			error = PTR_ERR(flow);
 			goto err_unlock_ovs;
 		}
-		flow->key = key;
 		clear_stats(flow);
 
 		rcu_assign_pointer(flow->sf_acts, acts);
 
 		/* Put flow in bucket. */
-		flow->hash = ovs_flow_hash(&key, key_len);
-		ovs_flow_tbl_insert(table, flow);
+		ovs_flow_tbl_insert(table, flow, &key, key_len);
 
 		reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
 						info->snd_seq,
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 976a8b7..5c519b1 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -353,6 +353,14 @@ struct sw_flow *ovs_flow_tbl_next(struct flow_table *table, u32 *bucket, u32 *la
 	return NULL;
 }
 
+static void __flow_tbl_insert(struct flow_table *table, struct sw_flow *flow)
+{
+	struct hlist_head *head;
+	head = find_bucket(table, flow->hash);
+	hlist_add_head_rcu(&flow->hash_node[table->node_ver], head);
+	table->count++;
+}
+
 static void flow_table_copy_flows(struct flow_table *old, struct flow_table *new)
 {
 	int old_ver;
@@ -369,7 +377,7 @@ static void flow_table_copy_flows(struct flow_table *old, struct flow_table *new
 		head = flex_array_get(old->buckets, i);
 
 		hlist_for_each_entry(flow, head, hash_node[old_ver])
-			ovs_flow_tbl_insert(new, flow);
+			__flow_tbl_insert(new, flow);
 	}
 	old->keep_flows = true;
 }
@@ -763,9 +771,18 @@ out:
 	return error;
 }
 
-u32 ovs_flow_hash(const struct sw_flow_key *key, int key_len)
+static u32 ovs_flow_hash(const struct sw_flow_key *key, int key_start, int key_len)
+{
+	return jhash2((u32 *)((u8 *)key + key_start),
+		      DIV_ROUND_UP(key_len - key_start, sizeof(u32)), 0);
+}
+
+static int flow_key_start(struct sw_flow_key *key)
 {
-	return jhash2((u32 *)key, DIV_ROUND_UP(key_len, sizeof(u32)), 0);
+	if (key->tun_key.ipv4_dst)
+		return 0;
+	else
+		return offsetof(struct sw_flow_key, phy);
 }
 
 struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *table,
@@ -773,28 +790,31 @@ struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *table,
 {
 	struct sw_flow *flow;
 	struct hlist_head *head;
+	u8 *_key;
+	int key_start;
 	u32 hash;
 
-	hash = ovs_flow_hash(key, key_len);
+	key_start = flow_key_start(key);
+	hash = ovs_flow_hash(key, key_start, key_len);
 
+	_key = (u8 *) key + key_start;
 	head = find_bucket(table, hash);
 	hlist_for_each_entry_rcu(flow, head, hash_node[table->node_ver]) {
 
 		if (flow->hash == hash &&
-		    !memcmp(&flow->key, key, key_len)) {
+		    !memcmp((u8 *)&flow->key + key_start, _key, key_len - key_start)) {
 			return flow;
 		}
 	}
 	return NULL;
 }
 
-void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow)
+void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow,
+			 struct sw_flow_key *key, int key_len)
 {
-	struct hlist_head *head;
-
-	head = find_bucket(table, flow->hash);
-	hlist_add_head_rcu(&flow->hash_node[table->node_ver], head);
-	table->count++;
+	flow->hash = ovs_flow_hash(key, flow_key_start(key), key_len);
+	memcpy(&flow->key, key, sizeof(flow->key));
+	__flow_tbl_insert(table, flow);
 }
 
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow)
@@ -1235,6 +1255,7 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 /**
  * ovs_flow_metadata_from_nlattrs - parses Netlink attributes into a flow key.
  * @flow: Receives extracted in_port, priority, tun_key and skb_mark.
+ * @key_len: Length of key in @flow.  Used for calculating flow hash.
  * @attr: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
  * sequence.
  *
@@ -1243,7 +1264,7 @@ int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
  * get the metadata, that is, the parts of the flow key that cannot be
  * extracted from the packet itself.
  */
-int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
+int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow, int key_len,
 				   const struct nlattr *attr)
 {
 	struct ovs_key_ipv4_tunnel *tun_key = &flow->key.tun_key;
@@ -1289,6 +1310,10 @@ int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
 	}
 	if (rem)
 		return -EINVAL;
+
+	flow->hash = ovs_flow_hash(&flow->key,
+				   flow_key_start(&flow->key), key_len);
+
 	return 0;
 }
 
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index bfe80b9..999842f 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -156,7 +156,7 @@ u64 ovs_flow_used_time(unsigned long flow_jiffies);
 int ovs_flow_to_nlattrs(const struct sw_flow_key *, struct sk_buff *);
 int ovs_flow_from_nlattrs(struct sw_flow_key *swkey, int *key_lenp,
 		      const struct nlattr *);
-int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
+int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow, int key_len,
 				  const struct nlattr *attr);
 
 #define MAX_ACTIONS_BUFSIZE    (32 * 1024)
@@ -188,9 +188,9 @@ void ovs_flow_tbl_deferred_destroy(struct flow_table *table);
 struct flow_table *ovs_flow_tbl_alloc(int new_size);
 struct flow_table *ovs_flow_tbl_expand(struct flow_table *table);
 struct flow_table *ovs_flow_tbl_rehash(struct flow_table *table);
-void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow);
+void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow,
+			 struct sw_flow_key *key, int key_len);
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow);
-u32 ovs_flow_hash(const struct sw_flow_key *key, int key_len);
 
 struct sw_flow *ovs_flow_tbl_next(struct flow_table *table, u32 *bucket, u32 *idx);
 extern const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1];
-- 
cgit v0.10.2


From aa310701e787087dbfbccf1409982a96e16c57a6 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Mon, 17 Jun 2013 17:50:33 -0700
Subject: openvswitch: Add gre tunnel support.

Add gre vport implementation.  Most of gre protocol processing
is pushed to gre module. It make use of gre demultiplexer
therefore it can co-exist with linux device based gre tunnels.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index b15a445..c55efaa 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -164,6 +164,7 @@ enum ovs_vport_type {
 	OVS_VPORT_TYPE_UNSPEC,
 	OVS_VPORT_TYPE_NETDEV,   /* network device */
 	OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
+	OVS_VPORT_TYPE_GRE,      /* GRE tunnel. */
 	__OVS_VPORT_TYPE_MAX
 };
 
diff --git a/net/openvswitch/Kconfig b/net/openvswitch/Kconfig
index d9ea33c..9fbc04a 100644
--- a/net/openvswitch/Kconfig
+++ b/net/openvswitch/Kconfig
@@ -19,6 +19,8 @@ config OPENVSWITCH
 	  which is able to accept configuration from a variety of sources and
 	  translate it into packet processing rules.
 
+	  Open vSwitch GRE support depends on CONFIG_NET_IPGRE_DEMUX.
+
 	  See http://openvswitch.org for more information and userspace
 	  utilities.
 
diff --git a/net/openvswitch/Makefile b/net/openvswitch/Makefile
index 15e7384..01bddb2 100644
--- a/net/openvswitch/Makefile
+++ b/net/openvswitch/Makefile
@@ -10,5 +10,6 @@ openvswitch-y := \
 	dp_notify.o \
 	flow.o \
 	vport.o \
+	vport-gre.o \
 	vport-internal_dev.o \
-	vport-netdev.o \
+	vport-netdev.o
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index e88ebc2..a914864 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -122,6 +122,7 @@ struct dp_upcall_info {
 struct ovs_net {
 	struct list_head dps;
 	struct work_struct dp_notify_work;
+	struct vport_net vport_net;
 };
 
 extern int ovs_net_id;
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 999842f..66ef722 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -49,11 +49,27 @@ struct ovs_key_ipv4_tunnel {
 	__be64 tun_id;
 	__be32 ipv4_src;
 	__be32 ipv4_dst;
-	u16  tun_flags;
+	__be16 tun_flags;
 	u8   ipv4_tos;
 	u8   ipv4_ttl;
 };
 
+static inline void ovs_flow_tun_key_init(struct ovs_key_ipv4_tunnel *tun_key,
+					 const struct iphdr *iph, __be64 tun_id,
+					 __be16 tun_flags)
+{
+	tun_key->tun_id = tun_id;
+	tun_key->ipv4_src = iph->saddr;
+	tun_key->ipv4_dst = iph->daddr;
+	tun_key->ipv4_tos = iph->tos;
+	tun_key->ipv4_ttl = iph->ttl;
+	tun_key->tun_flags = tun_flags;
+
+	/* clear struct padding. */
+	memset((unsigned char *) tun_key + OVS_TUNNEL_KEY_SIZE, 0,
+	       sizeof(*tun_key) - OVS_TUNNEL_KEY_SIZE);
+}
+
 struct sw_flow_key {
 	struct ovs_key_ipv4_tunnel tun_key;  /* Encapsulating tunnel key. */
 	struct {
diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
new file mode 100644
index 0000000..3a8d190
--- /dev/null
+++ b/net/openvswitch/vport-gre.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 2007-2013 Nicira, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifdef CONFIG_NET_IPGRE_DEMUX
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/if.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/if_tunnel.h>
+#include <linux/if_vlan.h>
+#include <linux/in.h>
+#include <linux/if_vlan.h>
+#include <linux/in.h>
+#include <linux/in_route.h>
+#include <linux/inetdevice.h>
+#include <linux/jhash.h>
+#include <linux/list.h>
+#include <linux/kernel.h>
+#include <linux/workqueue.h>
+#include <linux/rculist.h>
+#include <net/route.h>
+#include <net/xfrm.h>
+
+#include <net/icmp.h>
+#include <net/ip.h>
+#include <net/ip_tunnels.h>
+#include <net/gre.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+#include <net/protocol.h>
+
+#include "datapath.h"
+#include "vport.h"
+
+/* Returns the least-significant 32 bits of a __be64. */
+static __be32 be64_get_low32(__be64 x)
+{
+#ifdef __BIG_ENDIAN
+	return (__force __be32)x;
+#else
+	return (__force __be32)((__force u64)x >> 32);
+#endif
+}
+
+static __be16 filter_tnl_flags(__be16 flags)
+{
+	return flags & (TUNNEL_CSUM | TUNNEL_KEY);
+}
+
+static struct sk_buff *__build_header(struct sk_buff *skb,
+				      int tunnel_hlen)
+{
+	const struct ovs_key_ipv4_tunnel *tun_key = OVS_CB(skb)->tun_key;
+	struct tnl_ptk_info tpi;
+
+	skb = gre_handle_offloads(skb, !!(tun_key->tun_flags & TUNNEL_CSUM));
+	if (IS_ERR(skb))
+		return NULL;
+
+	tpi.flags = filter_tnl_flags(tun_key->tun_flags);
+	tpi.proto = htons(ETH_P_TEB);
+	tpi.key = be64_get_low32(tun_key->tun_id);
+	tpi.seq = 0;
+	gre_build_header(skb, &tpi, tunnel_hlen);
+
+	return skb;
+}
+
+static __be64 key_to_tunnel_id(__be32 key, __be32 seq)
+{
+#ifdef __BIG_ENDIAN
+	return (__force __be64)((__force u64)seq << 32 | (__force u32)key);
+#else
+	return (__force __be64)((__force u64)key << 32 | (__force u32)seq);
+#endif
+}
+
+/* Called with rcu_read_lock and BH disabled. */
+static int gre_rcv(struct sk_buff *skb,
+		   const struct tnl_ptk_info *tpi)
+{
+	struct ovs_key_ipv4_tunnel tun_key;
+	struct ovs_net *ovs_net;
+	struct vport *vport;
+	__be64 key;
+
+	ovs_net = net_generic(dev_net(skb->dev), ovs_net_id);
+	vport = rcu_dereference(ovs_net->vport_net.gre_vport);
+	if (unlikely(!vport))
+		return PACKET_REJECT;
+
+	key = key_to_tunnel_id(tpi->key, tpi->seq);
+	ovs_flow_tun_key_init(&tun_key, ip_hdr(skb), key,
+			      filter_tnl_flags(tpi->flags));
+
+	ovs_vport_receive(vport, skb, &tun_key);
+	return PACKET_RCVD;
+}
+
+static int gre_tnl_send(struct vport *vport, struct sk_buff *skb)
+{
+	struct net *net = ovs_dp_get_net(vport->dp);
+	struct flowi4 fl;
+	struct rtable *rt;
+	int min_headroom;
+	int tunnel_hlen;
+	__be16 df;
+	int err;
+
+	if (unlikely(!OVS_CB(skb)->tun_key)) {
+		err = -EINVAL;
+		goto error;
+	}
+
+	/* Route lookup */
+	memset(&fl, 0, sizeof(fl));
+	fl.daddr = OVS_CB(skb)->tun_key->ipv4_dst;
+	fl.saddr = OVS_CB(skb)->tun_key->ipv4_src;
+	fl.flowi4_tos = RT_TOS(OVS_CB(skb)->tun_key->ipv4_tos);
+	fl.flowi4_mark = skb->mark;
+	fl.flowi4_proto = IPPROTO_GRE;
+
+	rt = ip_route_output_key(net, &fl);
+	if (IS_ERR(rt))
+		return PTR_ERR(rt);
+
+	tunnel_hlen = ip_gre_calc_hlen(OVS_CB(skb)->tun_key->tun_flags);
+
+	min_headroom = LL_RESERVED_SPACE(rt->dst.dev) + rt->dst.header_len
+			+ tunnel_hlen + sizeof(struct iphdr)
+			+ (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0);
+	if (skb_headroom(skb) < min_headroom || skb_header_cloned(skb)) {
+		int head_delta = SKB_DATA_ALIGN(min_headroom -
+						skb_headroom(skb) +
+						16);
+		err = pskb_expand_head(skb, max_t(int, head_delta, 0),
+					0, GFP_ATOMIC);
+		if (unlikely(err))
+			goto err_free_rt;
+	}
+
+	if (vlan_tx_tag_present(skb)) {
+		if (unlikely(!__vlan_put_tag(skb,
+					     skb->vlan_proto,
+					     vlan_tx_tag_get(skb)))) {
+			err = -ENOMEM;
+			goto err_free_rt;
+		}
+		skb->vlan_tci = 0;
+	}
+
+	/* Push Tunnel header. */
+	skb = __build_header(skb, tunnel_hlen);
+	if (unlikely(!skb)) {
+		err = 0;
+		goto err_free_rt;
+	}
+
+	df = OVS_CB(skb)->tun_key->tun_flags & TUNNEL_DONT_FRAGMENT ?
+		htons(IP_DF) : 0;
+
+	skb->local_df = 1;
+
+	return iptunnel_xmit(net, rt, skb, fl.saddr,
+			     OVS_CB(skb)->tun_key->ipv4_dst, IPPROTO_GRE,
+			     OVS_CB(skb)->tun_key->ipv4_tos,
+			     OVS_CB(skb)->tun_key->ipv4_ttl, df);
+err_free_rt:
+	ip_rt_put(rt);
+error:
+	return err;
+}
+
+static struct gre_cisco_protocol gre_protocol = {
+	.handler        = gre_rcv,
+	.priority       = 1,
+};
+
+static int gre_ports;
+static int gre_init(void)
+{
+	int err;
+
+	gre_ports++;
+	if (gre_ports > 1)
+		return 0;
+
+	err = gre_cisco_register(&gre_protocol);
+	if (err)
+		pr_warn("cannot register gre protocol handler\n");
+
+	return err;
+}
+
+static void gre_exit(void)
+{
+	gre_ports--;
+	if (gre_ports > 0)
+		return;
+
+	gre_cisco_unregister(&gre_protocol);
+}
+
+static const char *gre_get_name(const struct vport *vport)
+{
+	return vport_priv(vport);
+}
+
+static struct vport *gre_create(const struct vport_parms *parms)
+{
+	struct net *net = ovs_dp_get_net(parms->dp);
+	struct ovs_net *ovs_net;
+	struct vport *vport;
+	int err;
+
+	err = gre_init();
+	if (err)
+		return ERR_PTR(err);
+
+	ovs_net = net_generic(net, ovs_net_id);
+	if (ovsl_dereference(ovs_net->vport_net.gre_vport)) {
+		vport = ERR_PTR(-EEXIST);
+		goto error;
+	}
+
+	vport = ovs_vport_alloc(IFNAMSIZ, &ovs_gre_vport_ops, parms);
+	if (IS_ERR(vport))
+		goto error;
+
+	strncpy(vport_priv(vport), parms->name, IFNAMSIZ);
+	rcu_assign_pointer(ovs_net->vport_net.gre_vport, vport);
+	return vport;
+
+error:
+	gre_exit();
+	return vport;
+}
+
+static void gre_tnl_destroy(struct vport *vport)
+{
+	struct net *net = ovs_dp_get_net(vport->dp);
+	struct ovs_net *ovs_net;
+
+	ovs_net = net_generic(net, ovs_net_id);
+
+	rcu_assign_pointer(ovs_net->vport_net.gre_vport, NULL);
+	ovs_vport_deferred_free(vport);
+	gre_exit();
+}
+
+const struct vport_ops ovs_gre_vport_ops = {
+	.type		= OVS_VPORT_TYPE_GRE,
+	.create		= gre_create,
+	.destroy	= gre_tnl_destroy,
+	.get_name	= gre_get_name,
+	.send		= gre_tnl_send,
+};
+#endif
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 413287a..f52dfb9 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -38,6 +38,10 @@
 static const struct vport_ops *vport_ops_list[] = {
 	&ovs_netdev_vport_ops,
 	&ovs_internal_vport_ops,
+
+#ifdef CONFIG_NET_IPGRE_DEMUX
+	&ovs_gre_vport_ops,
+#endif
 };
 
 /* Protected by RCU read lock for reading, ovs_mutex for writing. */
@@ -404,3 +408,18 @@ void ovs_vport_record_error(struct vport *vport, enum vport_err_type err_type)
 
 	spin_unlock(&vport->stats_lock);
 }
+
+static void free_vport_rcu(struct rcu_head *rcu)
+{
+	struct vport *vport = container_of(rcu, struct vport, rcu);
+
+	ovs_vport_free(vport);
+}
+
+void ovs_vport_deferred_free(struct vport *vport)
+{
+	if (!vport)
+		return;
+
+	call_rcu(&vport->rcu, free_vport_rcu);
+}
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index 2d961ae..376045c 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -34,6 +34,11 @@ struct vport_parms;
 
 /* The following definitions are for users of the vport subsytem: */
 
+/* The following definitions are for users of the vport subsytem: */
+struct vport_net {
+	struct vport __rcu *gre_vport;
+};
+
 int ovs_vport_init(void);
 void ovs_vport_exit(void);
 
@@ -152,6 +157,7 @@ enum vport_err_type {
 struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *,
 			      const struct vport_parms *);
 void ovs_vport_free(struct vport *);
+void ovs_vport_deferred_free(struct vport *vport);
 
 #define VPORT_ALIGN 8
 
@@ -192,6 +198,7 @@ void ovs_vport_record_error(struct vport *, enum vport_err_type err_type);
  * add yours to the list at the top of vport.c. */
 extern const struct vport_ops ovs_netdev_vport_ops;
 extern const struct vport_ops ovs_internal_vport_ops;
+extern const struct vport_ops ovs_gre_vport_ops;
 
 static inline void ovs_skb_postpush_rcsum(struct sk_buff *skb,
 				      const void *start, unsigned int len)
-- 
cgit v0.10.2


From 9e77a2b837bbd7197da966f0915e8f1ddb2ca850 Mon Sep 17 00:00:00 2001
From: Amir Vadai <amirv@mellanox.com>
Date: Tue, 18 Jun 2013 16:18:27 +0300
Subject: net/mlx4_en: Add Low Latency Socket (LLS) support

Add basic support for LLS.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
index 1e6c594..3e2d504 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
@@ -139,6 +139,7 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
 
 	if (!cq->is_tx) {
 		netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq, 64);
+		napi_hash_add(&cq->napi);
 		napi_enable(&cq->napi);
 	}
 
@@ -162,6 +163,8 @@ void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
 {
 	if (!cq->is_tx) {
 		napi_disable(&cq->napi);
+		napi_hash_del(&cq->napi);
+		synchronize_rcu();
 		netif_napi_del(&cq->napi);
 	}
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index ade276c..ab9ec91 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -38,6 +38,7 @@
 #include <linux/slab.h>
 #include <linux/hash.h>
 #include <net/ip.h>
+#include <net/ll_poll.h>
 
 #include <linux/mlx4/driver.h>
 #include <linux/mlx4/device.h>
@@ -67,6 +68,30 @@ int mlx4_en_setup_tc(struct net_device *dev, u8 up)
 	return 0;
 }
 
+#ifdef CONFIG_NET_LL_RX_POLL
+/* must be called with local_bh_disable()d */
+static int mlx4_en_low_latency_recv(struct napi_struct *napi)
+{
+	struct mlx4_en_cq *cq = container_of(napi, struct mlx4_en_cq, napi);
+	struct net_device *dev = cq->dev;
+	struct mlx4_en_priv *priv = netdev_priv(dev);
+	struct mlx4_en_rx_ring *rx_ring = &priv->rx_ring[cq->ring];
+	int done;
+
+	if (!priv->port_up)
+		return LL_FLUSH_FAILED;
+
+	if (!mlx4_en_cq_lock_poll(cq))
+		return LL_FLUSH_BUSY;
+
+	done = mlx4_en_process_rx_cq(dev, cq, 4);
+
+	mlx4_en_cq_unlock_poll(cq);
+
+	return done;
+}
+#endif	/* CONFIG_NET_LL_RX_POLL */
+
 #ifdef CONFIG_RFS_ACCEL
 
 struct mlx4_en_filter {
@@ -1445,6 +1470,8 @@ int mlx4_en_start_port(struct net_device *dev)
 	for (i = 0; i < priv->rx_ring_num; i++) {
 		cq = &priv->rx_cq[i];
 
+		mlx4_en_cq_init_lock(cq);
+
 		err = mlx4_en_activate_cq(priv, cq, i);
 		if (err) {
 			en_err(priv, "Failed activating Rx CQ\n");
@@ -1694,10 +1721,19 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
 
 	/* Free RX Rings */
 	for (i = 0; i < priv->rx_ring_num; i++) {
+		struct mlx4_en_cq *cq = &priv->rx_cq[i];
+
+		local_bh_disable();
+		while (!mlx4_en_cq_lock_napi(cq)) {
+			pr_info("CQ %d locked\n", i);
+			mdelay(1);
+		}
+		local_bh_enable();
+
 		mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
-		while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state))
+		while (test_bit(NAPI_STATE_SCHED, &cq->napi.state))
 			msleep(1);
-		mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]);
+		mlx4_en_deactivate_cq(priv, cq);
 	}
 
 	/* close port*/
@@ -2090,6 +2126,9 @@ static const struct net_device_ops mlx4_netdev_ops = {
 #ifdef CONFIG_RFS_ACCEL
 	.ndo_rx_flow_steer	= mlx4_en_filter_rfs,
 #endif
+#ifdef CONFIG_NET_LL_RX_POLL
+	.ndo_ll_poll		= mlx4_en_low_latency_recv,
+#endif
 };
 
 static const struct net_device_ops mlx4_netdev_ops_master = {
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 02aee1e..9c57581 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -31,6 +31,7 @@
  *
  */
 
+#include <net/ll_poll.h>
 #include <linux/mlx4/cq.h>
 #include <linux/slab.h>
 #include <linux/mlx4/qp.h>
@@ -656,8 +657,11 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
 				 * - DIX Ethernet (type interpretation)
 				 * - TCP/IP (v4)
 				 * - without IP options
-				 * - not an IP fragment */
-				if (dev->features & NETIF_F_GRO) {
+				 * - not an IP fragment
+				 * - no LLS polling in progress
+				 */
+				if (!mlx4_en_cq_ll_polling(cq) &&
+				    (dev->features & NETIF_F_GRO)) {
 					struct sk_buff *gro_skb = napi_get_frags(&cq->napi);
 					if (!gro_skb)
 						goto next;
@@ -737,6 +741,8 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
 					       timestamp);
 		}
 
+		skb_mark_ll(skb, &cq->napi);
+
 		/* Push it up the stack */
 		netif_receive_skb(skb);
 
@@ -781,8 +787,13 @@ int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget)
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	int done;
 
+	if (!mlx4_en_cq_lock_napi(cq))
+		return budget;
+
 	done = mlx4_en_process_rx_cq(dev, cq, budget);
 
+	mlx4_en_cq_unlock_napi(cq);
+
 	/* If we used up all the quota - we're probably not done yet... */
 	if (done == budget)
 		INC_PERF_COUNTER(priv->pstats.napi_quota);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index b1f51c1..11c862e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -310,6 +310,19 @@ struct mlx4_en_cq {
 	u16 moder_cnt;
 	struct mlx4_cqe *buf;
 #define MLX4_EN_OPCODE_ERROR	0x1e
+
+#ifdef CONFIG_NET_LL_RX_POLL
+	unsigned int state;
+#define MLX4_EN_CQ_STATE_IDLE        0
+#define MLX4_EN_CQ_STATE_NAPI     1    /* NAPI owns this CQ */
+#define MLX4_EN_CQ_STATE_POLL     2    /* poll owns this CQ */
+#define MLX4_CQ_LOCKED (MLX4_EN_CQ_STATE_NAPI | MLX4_EN_CQ_STATE_POLL)
+#define MLX4_EN_CQ_STATE_NAPI_YIELD  4    /* NAPI yielded this CQ */
+#define MLX4_EN_CQ_STATE_POLL_YIELD  8    /* poll yielded this CQ */
+#define CQ_YIELD (MLX4_EN_CQ_STATE_NAPI_YIELD | MLX4_EN_CQ_STATE_POLL_YIELD)
+#define CQ_USER_PEND (MLX4_EN_CQ_STATE_POLL | MLX4_EN_CQ_STATE_POLL_YIELD)
+	spinlock_t poll_lock; /* protects from LLS/napi conflicts */
+#endif  /* CONFIG_NET_LL_RX_POLL */
 };
 
 struct mlx4_en_port_profile {
@@ -562,6 +575,114 @@ struct mlx4_mac_entry {
 	struct rcu_head rcu;
 };
 
+#ifdef CONFIG_NET_LL_RX_POLL
+static inline void mlx4_en_cq_init_lock(struct mlx4_en_cq *cq)
+{
+	spin_lock_init(&cq->poll_lock);
+	cq->state = MLX4_EN_CQ_STATE_IDLE;
+}
+
+/* called from the device poll rutine to get ownership of a cq */
+static inline bool mlx4_en_cq_lock_napi(struct mlx4_en_cq *cq)
+{
+	int rc = true;
+	spin_lock(&cq->poll_lock);
+	if (cq->state & MLX4_CQ_LOCKED) {
+		WARN_ON(cq->state & MLX4_EN_CQ_STATE_NAPI);
+		cq->state |= MLX4_EN_CQ_STATE_NAPI_YIELD;
+		rc = false;
+	} else
+		/* we don't care if someone yielded */
+		cq->state = MLX4_EN_CQ_STATE_NAPI;
+	spin_unlock(&cq->poll_lock);
+	return rc;
+}
+
+/* returns true is someone tried to get the cq while napi had it */
+static inline bool mlx4_en_cq_unlock_napi(struct mlx4_en_cq *cq)
+{
+	int rc = false;
+	spin_lock(&cq->poll_lock);
+	WARN_ON(cq->state & (MLX4_EN_CQ_STATE_POLL |
+			       MLX4_EN_CQ_STATE_NAPI_YIELD));
+
+	if (cq->state & MLX4_EN_CQ_STATE_POLL_YIELD)
+		rc = true;
+	cq->state = MLX4_EN_CQ_STATE_IDLE;
+	spin_unlock(&cq->poll_lock);
+	return rc;
+}
+
+/* called from mlx4_en_low_latency_poll() */
+static inline bool mlx4_en_cq_lock_poll(struct mlx4_en_cq *cq)
+{
+	int rc = true;
+	spin_lock_bh(&cq->poll_lock);
+	if ((cq->state & MLX4_CQ_LOCKED)) {
+		struct net_device *dev = cq->dev;
+		struct mlx4_en_priv *priv = netdev_priv(dev);
+		struct mlx4_en_rx_ring *rx_ring = &priv->rx_ring[cq->ring];
+
+		cq->state |= MLX4_EN_CQ_STATE_POLL_YIELD;
+		rc = false;
+	} else
+		/* preserve yield marks */
+		cq->state |= MLX4_EN_CQ_STATE_POLL;
+	spin_unlock_bh(&cq->poll_lock);
+	return rc;
+}
+
+/* returns true if someone tried to get the cq while it was locked */
+static inline bool mlx4_en_cq_unlock_poll(struct mlx4_en_cq *cq)
+{
+	int rc = false;
+	spin_lock_bh(&cq->poll_lock);
+	WARN_ON(cq->state & (MLX4_EN_CQ_STATE_NAPI));
+
+	if (cq->state & MLX4_EN_CQ_STATE_POLL_YIELD)
+		rc = true;
+	cq->state = MLX4_EN_CQ_STATE_IDLE;
+	spin_unlock_bh(&cq->poll_lock);
+	return rc;
+}
+
+/* true if a socket is polling, even if it did not get the lock */
+static inline bool mlx4_en_cq_ll_polling(struct mlx4_en_cq *cq)
+{
+	WARN_ON(!(cq->state & MLX4_CQ_LOCKED));
+	return cq->state & CQ_USER_PEND;
+}
+#else
+static inline void mlx4_en_cq_init_lock(struct mlx4_en_cq *cq)
+{
+}
+
+static inline bool mlx4_en_cq_lock_napi(struct mlx4_en_cq *cq)
+{
+	return true;
+}
+
+static inline bool mlx4_en_cq_unlock_napi(struct mlx4_en_cq *cq)
+{
+	return false;
+}
+
+static inline bool mlx4_en_cq_lock_poll(struct mlx4_en_cq *cq)
+{
+	return false;
+}
+
+static inline bool mlx4_en_cq_unlock_poll(struct mlx4_en_cq *cq)
+{
+	return false;
+}
+
+static inline bool mlx4_en_cq_ll_polling(struct mlx4_en_cq *cq)
+{
+	return false;
+}
+#endif /* CONFIG_NET_LL_RX_POLL */
+
 #define MLX4_EN_WOL_DO_MODIFY (1ULL << 63)
 
 void mlx4_en_update_loopback_state(struct net_device *dev,
-- 
cgit v0.10.2


From 8501841a4483e678ebd1b7872019621244d0098a Mon Sep 17 00:00:00 2001
From: Amir Vadai <amirv@mellanox.com>
Date: Tue, 18 Jun 2013 16:18:28 +0300
Subject: net/mlx4_en: Low Latency recv statistics

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index c9e6b62..727874f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -222,7 +222,12 @@ static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 	switch (sset) {
 	case ETH_SS_STATS:
 		return (priv->stats_bitmap ? bit_count : NUM_ALL_STATS) +
-			(priv->tx_ring_num + priv->rx_ring_num) * 2;
+			(priv->tx_ring_num * 2) +
+#ifdef CONFIG_NET_LL_RX_POLL
+			(priv->rx_ring_num * 5);
+#else
+			(priv->rx_ring_num * 2);
+#endif
 	case ETH_SS_TEST:
 		return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 					& MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
@@ -271,6 +276,11 @@ static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 	for (i = 0; i < priv->rx_ring_num; i++) {
 		data[index++] = priv->rx_ring[i].packets;
 		data[index++] = priv->rx_ring[i].bytes;
+#ifdef CONFIG_NET_LL_RX_POLL
+		data[index++] = priv->rx_ring[i].yields;
+		data[index++] = priv->rx_ring[i].misses;
+		data[index++] = priv->rx_ring[i].cleaned;
+#endif
 	}
 	spin_unlock_bh(&priv->stats_lock);
 
@@ -334,6 +344,14 @@ static void mlx4_en_get_strings(struct net_device *dev,
 				"rx%d_packets", i);
 			sprintf(data + (index++) * ETH_GSTRING_LEN,
 				"rx%d_bytes", i);
+#ifdef CONFIG_NET_LL_RX_POLL
+			sprintf(data + (index++) * ETH_GSTRING_LEN,
+				"rx%d_napi_yield", i);
+			sprintf(data + (index++) * ETH_GSTRING_LEN,
+				"rx%d_misses", i);
+			sprintf(data + (index++) * ETH_GSTRING_LEN,
+				"rx%d_cleaned", i);
+#endif
 		}
 		break;
 	}
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index ab9ec91..7299ada 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -85,6 +85,10 @@ static int mlx4_en_low_latency_recv(struct napi_struct *napi)
 		return LL_FLUSH_BUSY;
 
 	done = mlx4_en_process_rx_cq(dev, cq, 4);
+	if (likely(done))
+		rx_ring->cleaned += done;
+	else
+		rx_ring->misses++;
 
 	mlx4_en_cq_unlock_poll(cq);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 11c862e..57192a8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -290,6 +290,11 @@ struct mlx4_en_rx_ring {
 	void *rx_info;
 	unsigned long bytes;
 	unsigned long packets;
+#ifdef CONFIG_NET_LL_RX_POLL
+	unsigned long yields;
+	unsigned long misses;
+	unsigned long cleaned;
+#endif
 	unsigned long csum_ok;
 	unsigned long csum_none;
 	int hwtstamp_rx_filter;
@@ -625,6 +630,7 @@ static inline bool mlx4_en_cq_lock_poll(struct mlx4_en_cq *cq)
 
 		cq->state |= MLX4_EN_CQ_STATE_POLL_YIELD;
 		rc = false;
+		rx_ring->yields++;
 	} else
 		/* preserve yield marks */
 		cq->state |= MLX4_EN_CQ_STATE_POLL;
-- 
cgit v0.10.2


From 8f20aa575c0a69ccbdce325818f2b3878bfed61c Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Wed, 19 Jun 2013 01:36:04 +0300
Subject: bnx2x: add support for ndo_ll_poll

Adds ndo_ll_poll method and locking for FPs between LL and the napi.

When receiving a packet we use skb_mark_ll to record the napi it came from.
Add each napi to the napi_hash right after netif_napi_add().

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index f76597e..edda716 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -485,6 +485,21 @@ struct bnx2x_fastpath {
 	struct bnx2x		*bp; /* parent */
 
 	struct napi_struct	napi;
+
+#ifdef CONFIG_NET_LL_RX_POLL
+	unsigned int state;
+#define BNX2X_FP_STATE_IDLE		      0
+#define BNX2X_FP_STATE_NAPI		(1 << 0)    /* NAPI owns this FP */
+#define BNX2X_FP_STATE_POLL		(1 << 1)    /* poll owns this FP */
+#define BNX2X_FP_STATE_NAPI_YIELD	(1 << 2)    /* NAPI yielded this FP */
+#define BNX2X_FP_STATE_POLL_YIELD	(1 << 3)    /* poll yielded this FP */
+#define BNX2X_FP_YIELD	(BNX2X_FP_STATE_NAPI_YIELD | BNX2X_FP_STATE_POLL_YIELD)
+#define BNX2X_FP_LOCKED	(BNX2X_FP_STATE_NAPI | BNX2X_FP_STATE_POLL)
+#define BNX2X_FP_USER_PEND (BNX2X_FP_STATE_POLL | BNX2X_FP_STATE_POLL_YIELD)
+	/* protect state */
+	spinlock_t lock;
+#endif /* CONFIG_NET_LL_RX_POLL */
+
 	union host_hc_status_block	status_blk;
 	/* chip independent shortcuts into sb structure */
 	__le16			*sb_index_values;
@@ -557,6 +572,116 @@ struct bnx2x_fastpath {
 #define bnx2x_fp_stats(bp, fp)	(&((bp)->fp_stats[(fp)->index]))
 #define bnx2x_fp_qstats(bp, fp)	(&((bp)->fp_stats[(fp)->index].eth_q_stats))
 
+#ifdef CONFIG_NET_LL_RX_POLL
+static inline void bnx2x_fp_init_lock(struct bnx2x_fastpath *fp)
+{
+	spin_lock_init(&fp->lock);
+	fp->state = BNX2X_FP_STATE_IDLE;
+}
+
+/* called from the device poll routine to get ownership of a FP */
+static inline bool bnx2x_fp_lock_napi(struct bnx2x_fastpath *fp)
+{
+	bool rc = true;
+
+	spin_lock(&fp->lock);
+	if (fp->state & BNX2X_FP_LOCKED) {
+		WARN_ON(fp->state & BNX2X_FP_STATE_NAPI);
+		fp->state |= BNX2X_FP_STATE_NAPI_YIELD;
+		rc = false;
+	} else {
+		/* we don't care if someone yielded */
+		fp->state = BNX2X_FP_STATE_NAPI;
+	}
+	spin_unlock(&fp->lock);
+	return rc;
+}
+
+/* returns true is someone tried to get the FP while napi had it */
+static inline bool bnx2x_fp_unlock_napi(struct bnx2x_fastpath *fp)
+{
+	bool rc = false;
+
+	spin_lock(&fp->lock);
+	WARN_ON(fp->state &
+		(BNX2X_FP_STATE_POLL | BNX2X_FP_STATE_NAPI_YIELD));
+
+	if (fp->state & BNX2X_FP_STATE_POLL_YIELD)
+		rc = true;
+	fp->state = BNX2X_FP_STATE_IDLE;
+	spin_unlock(&fp->lock);
+	return rc;
+}
+
+/* called from bnx2x_low_latency_poll() */
+static inline bool bnx2x_fp_lock_poll(struct bnx2x_fastpath *fp)
+{
+	bool rc = true;
+
+	spin_lock_bh(&fp->lock);
+	if ((fp->state & BNX2X_FP_LOCKED)) {
+		fp->state |= BNX2X_FP_STATE_POLL_YIELD;
+		rc = false;
+	} else {
+		/* preserve yield marks */
+		fp->state |= BNX2X_FP_STATE_POLL;
+	}
+	spin_unlock_bh(&fp->lock);
+	return rc;
+}
+
+/* returns true if someone tried to get the FP while it was locked */
+static inline bool bnx2x_fp_unlock_poll(struct bnx2x_fastpath *fp)
+{
+	bool rc = false;
+
+	spin_lock_bh(&fp->lock);
+	WARN_ON(fp->state & BNX2X_FP_STATE_NAPI);
+
+	if (fp->state & BNX2X_FP_STATE_POLL_YIELD)
+		rc = true;
+	fp->state = BNX2X_FP_STATE_IDLE;
+	spin_unlock_bh(&fp->lock);
+	return rc;
+}
+
+/* true if a socket is polling, even if it did not get the lock */
+static inline bool bnx2x_fp_ll_polling(struct bnx2x_fastpath *fp)
+{
+	WARN_ON(!(fp->state & BNX2X_FP_LOCKED));
+	return fp->state & BNX2X_FP_USER_PEND;
+}
+#else
+static inline void bnx2x_fp_init_lock(struct bnx2x_fastpath *fp)
+{
+}
+
+static inline bool bnx2x_fp_lock_napi(struct bnx2x_fastpath *fp)
+{
+	return true;
+}
+
+static inline bool bnx2x_fp_unlock_napi(struct bnx2x_fastpath *fp)
+{
+	return false;
+}
+
+static inline bool bnx2x_fp_lock_poll(struct bnx2x_fastpath *fp)
+{
+	return false;
+}
+
+static inline bool bnx2x_fp_unlock_poll(struct bnx2x_fastpath *fp)
+{
+	return false;
+}
+
+static inline bool bnx2x_fp_ll_polling(struct bnx2x_fastpath *fp)
+{
+	return false;
+}
+#endif /* CONFIG_NET_LL_RX_POLL */
+
 /* Use 2500 as a mini-jumbo MTU for FCoE */
 #define BNX2X_FCOE_MINI_JUMBO_MTU	2500
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 4e42bdd..20eefa6 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -24,6 +24,7 @@
 #include <net/tcp.h>
 #include <net/ipv6.h>
 #include <net/ip6_checksum.h>
+#include <net/ll_poll.h>
 #include <linux/prefetch.h>
 #include "bnx2x_cmn.h"
 #include "bnx2x_init.h"
@@ -999,8 +1000,13 @@ reuse_rx:
 		    PARSING_FLAGS_VLAN)
 			__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
 					       le16_to_cpu(cqe_fp->vlan_tag));
-		napi_gro_receive(&fp->napi, skb);
 
+		skb_mark_ll(skb, &fp->napi);
+
+		if (bnx2x_fp_ll_polling(fp))
+			netif_receive_skb(skb);
+		else
+			napi_gro_receive(&fp->napi, skb);
 next_rx:
 		rx_buf->data = NULL;
 
@@ -1755,32 +1761,46 @@ static void bnx2x_napi_enable_cnic(struct bnx2x *bp)
 {
 	int i;
 
-	for_each_rx_queue_cnic(bp, i)
+	for_each_rx_queue_cnic(bp, i) {
+		bnx2x_fp_init_lock(&bp->fp[i]);
 		napi_enable(&bnx2x_fp(bp, i, napi));
+	}
 }
 
 static void bnx2x_napi_enable(struct bnx2x *bp)
 {
 	int i;
 
-	for_each_eth_queue(bp, i)
+	for_each_eth_queue(bp, i) {
+		bnx2x_fp_init_lock(&bp->fp[i]);
 		napi_enable(&bnx2x_fp(bp, i, napi));
+	}
 }
 
 static void bnx2x_napi_disable_cnic(struct bnx2x *bp)
 {
 	int i;
 
-	for_each_rx_queue_cnic(bp, i)
+	local_bh_disable();
+	for_each_rx_queue_cnic(bp, i) {
 		napi_disable(&bnx2x_fp(bp, i, napi));
+		while (!bnx2x_fp_lock_napi(&bp->fp[i]))
+			mdelay(1);
+	}
+	local_bh_enable();
 }
 
 static void bnx2x_napi_disable(struct bnx2x *bp)
 {
 	int i;
 
-	for_each_eth_queue(bp, i)
+	local_bh_disable();
+	for_each_eth_queue(bp, i) {
 		napi_disable(&bnx2x_fp(bp, i, napi));
+		while (!bnx2x_fp_lock_napi(&bp->fp[i]))
+			mdelay(1);
+	}
+	local_bh_enable();
 }
 
 void bnx2x_netif_start(struct bnx2x *bp)
@@ -3039,6 +3059,8 @@ int bnx2x_poll(struct napi_struct *napi, int budget)
 			return 0;
 		}
 #endif
+		if (!bnx2x_fp_lock_napi(fp))
+			return work_done;
 
 		for_each_cos_in_tx_queue(fp, cos)
 			if (bnx2x_tx_queue_has_work(fp->txdata_ptr[cos]))
@@ -3048,12 +3070,15 @@ int bnx2x_poll(struct napi_struct *napi, int budget)
 			work_done += bnx2x_rx_int(fp, budget - work_done);
 
 			/* must not complete if we consumed full budget */
-			if (work_done >= budget)
+			if (work_done >= budget) {
+				bnx2x_fp_unlock_napi(fp);
 				break;
+			}
 		}
 
 		/* Fall out from the NAPI loop if needed */
-		if (!(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) {
+		if (!bnx2x_fp_unlock_napi(fp) &&
+		    !(bnx2x_has_rx_work(fp) || bnx2x_has_tx_work(fp))) {
 
 			/* No need to update SB for FCoE L2 ring as long as
 			 * it's connected to the default SB and the SB
@@ -3095,6 +3120,34 @@ int bnx2x_poll(struct napi_struct *napi, int budget)
 	return work_done;
 }
 
+#ifdef CONFIG_NET_LL_RX_POLL
+/* must be called with local_bh_disable()d */
+int bnx2x_low_latency_recv(struct napi_struct *napi)
+{
+	struct bnx2x_fastpath *fp = container_of(napi, struct bnx2x_fastpath,
+						 napi);
+	struct bnx2x *bp = fp->bp;
+	int found = 0;
+
+	if ((bp->state == BNX2X_STATE_CLOSED) ||
+	    (bp->state == BNX2X_STATE_ERROR) ||
+	    (bp->flags & (TPA_ENABLE_FLAG | GRO_ENABLE_FLAG)))
+		return LL_FLUSH_FAILED;
+
+	if (!bnx2x_fp_lock_poll(fp))
+		return LL_FLUSH_BUSY;
+
+	if (bnx2x_has_rx_work(fp)) {
+		bnx2x_update_fpsb_idx(fp);
+		found = bnx2x_rx_int(fp, 4);
+	}
+
+	bnx2x_fp_unlock_poll(fp);
+
+	return found;
+}
+#endif
+
 /* we split the first BD into headers and data BDs
  * to ease the pain of our fellow microcode engineers
  * we use one mapping for both BDs
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index 650bb52..a1a5cdc 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -605,6 +605,13 @@ int bnx2x_enable_msi(struct bnx2x *bp);
 int bnx2x_poll(struct napi_struct *napi, int budget);
 
 /**
+ * bnx2x_low_latency_recv - LL callback
+ *
+ * @napi:	napi structure
+ */
+int bnx2x_low_latency_recv(struct napi_struct *napi);
+
+/**
  * bnx2x_alloc_mem_bp - allocate memories outsize main driver structure
  *
  * @bp:		driver handle
@@ -846,9 +853,11 @@ static inline void bnx2x_add_all_napi_cnic(struct bnx2x *bp)
 	int i;
 
 	/* Add NAPI objects */
-	for_each_rx_queue_cnic(bp, i)
+	for_each_rx_queue_cnic(bp, i) {
 		netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
 			       bnx2x_poll, NAPI_POLL_WEIGHT);
+		napi_hash_add(&bnx2x_fp(bp, i, napi));
+	}
 }
 
 static inline void bnx2x_add_all_napi(struct bnx2x *bp)
@@ -856,25 +865,31 @@ static inline void bnx2x_add_all_napi(struct bnx2x *bp)
 	int i;
 
 	/* Add NAPI objects */
-	for_each_eth_queue(bp, i)
+	for_each_eth_queue(bp, i) {
 		netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi),
 			       bnx2x_poll, NAPI_POLL_WEIGHT);
+		napi_hash_add(&bnx2x_fp(bp, i, napi));
+	}
 }
 
 static inline void bnx2x_del_all_napi_cnic(struct bnx2x *bp)
 {
 	int i;
 
-	for_each_rx_queue_cnic(bp, i)
+	for_each_rx_queue_cnic(bp, i) {
+		napi_hash_del(&bnx2x_fp(bp, i, napi));
 		netif_napi_del(&bnx2x_fp(bp, i, napi));
+	}
 }
 
 static inline void bnx2x_del_all_napi(struct bnx2x *bp)
 {
 	int i;
 
-	for_each_eth_queue(bp, i)
+	for_each_eth_queue(bp, i) {
+		napi_hash_del(&bnx2x_fp(bp, i, napi));
 		netif_napi_del(&bnx2x_fp(bp, i, napi));
+	}
 }
 
 int bnx2x_set_int_mode(struct bnx2x *bp);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 658b9fd..e2e8705 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12013,6 +12013,10 @@ static const struct net_device_ops bnx2x_netdev_ops = {
 #ifdef NETDEV_FCOE_WWNN
 	.ndo_fcoe_get_wwn	= bnx2x_fcoe_get_wwn,
 #endif
+
+#ifdef CONFIG_NET_LL_RX_POLL
+	.ndo_ll_poll		= bnx2x_low_latency_recv,
+#endif
 };
 
 static int bnx2x_set_coherency_mask(struct bnx2x *bp)
-- 
cgit v0.10.2


From 75b2945988274078bccf4c0b84e90c77b4fcaf96 Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Wed, 19 Jun 2013 01:36:05 +0300
Subject: bnx2x: replace mechanism to check for next available packet

Check next packet availability by validating that HW has finished CQE
placement. This saves latency of another dma transaction performed to update
SB indexes.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 20eefa6..ca7f2bb 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -804,40 +804,32 @@ int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
 {
 	struct bnx2x *bp = fp->bp;
 	u16 bd_cons, bd_prod, bd_prod_fw, comp_ring_cons;
-	u16 hw_comp_cons, sw_comp_cons, sw_comp_prod;
+	u16 sw_comp_cons, sw_comp_prod;
 	int rx_pkt = 0;
+	union eth_rx_cqe *cqe;
+	struct eth_fast_path_rx_cqe *cqe_fp;
 
 #ifdef BNX2X_STOP_ON_ERROR
 	if (unlikely(bp->panic))
 		return 0;
 #endif
 
-	/* CQ "next element" is of the size of the regular element,
-	   that's why it's ok here */
-	hw_comp_cons = le16_to_cpu(*fp->rx_cons_sb);
-	if ((hw_comp_cons & MAX_RCQ_DESC_CNT) == MAX_RCQ_DESC_CNT)
-		hw_comp_cons++;
-
 	bd_cons = fp->rx_bd_cons;
 	bd_prod = fp->rx_bd_prod;
 	bd_prod_fw = bd_prod;
 	sw_comp_cons = fp->rx_comp_cons;
 	sw_comp_prod = fp->rx_comp_prod;
 
-	/* Memory barrier necessary as speculative reads of the rx
-	 * buffer can be ahead of the index in the status block
-	 */
-	rmb();
+	comp_ring_cons = RCQ_BD(sw_comp_cons);
+	cqe = &fp->rx_comp_ring[comp_ring_cons];
+	cqe_fp = &cqe->fast_path_cqe;
 
 	DP(NETIF_MSG_RX_STATUS,
-	   "queue[%d]:  hw_comp_cons %u  sw_comp_cons %u\n",
-	   fp->index, hw_comp_cons, sw_comp_cons);
+	   "queue[%d]: sw_comp_cons %u\n", fp->index, sw_comp_cons);
 
-	while (sw_comp_cons != hw_comp_cons) {
+	while (BNX2X_IS_CQE_COMPLETED(cqe_fp)) {
 		struct sw_rx_bd *rx_buf = NULL;
 		struct sk_buff *skb;
-		union eth_rx_cqe *cqe;
-		struct eth_fast_path_rx_cqe *cqe_fp;
 		u8 cqe_fp_flags;
 		enum eth_rx_cqe_type cqe_fp_type;
 		u16 len, pad, queue;
@@ -849,12 +841,9 @@ int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
 			return 0;
 #endif
 
-		comp_ring_cons = RCQ_BD(sw_comp_cons);
 		bd_prod = RX_BD(bd_prod);
 		bd_cons = RX_BD(bd_cons);
 
-		cqe = &fp->rx_comp_ring[comp_ring_cons];
-		cqe_fp = &cqe->fast_path_cqe;
 		cqe_fp_flags = cqe_fp->type_error_flags;
 		cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE;
 
@@ -1018,8 +1007,15 @@ next_cqe:
 		sw_comp_prod = NEXT_RCQ_IDX(sw_comp_prod);
 		sw_comp_cons = NEXT_RCQ_IDX(sw_comp_cons);
 
+		/* mark CQE as free */
+		BNX2X_SEED_CQE(cqe_fp);
+
 		if (rx_pkt == budget)
 			break;
+
+		comp_ring_cons = RCQ_BD(sw_comp_cons);
+		cqe = &fp->rx_comp_ring[comp_ring_cons];
+		cqe_fp = &cqe->fast_path_cqe;
 	} /* while */
 
 	fp->rx_bd_cons = bd_cons;
@@ -1055,8 +1051,6 @@ static irqreturn_t bnx2x_msix_fp_int(int irq, void *fp_cookie)
 #endif
 
 	/* Handle Rx and Tx according to MSI-X vector */
-	prefetch(fp->rx_cons_sb);
-
 	for_each_cos_in_tx_queue(fp, cos)
 		prefetch(fp->txdata_ptr[cos]->tx_cons_sb);
 
@@ -3137,10 +3131,8 @@ int bnx2x_low_latency_recv(struct napi_struct *napi)
 	if (!bnx2x_fp_lock_poll(fp))
 		return LL_FLUSH_BUSY;
 
-	if (bnx2x_has_rx_work(fp)) {
-		bnx2x_update_fpsb_idx(fp);
+	if (bnx2x_has_rx_work(fp))
 		found = bnx2x_rx_int(fp, 4);
-	}
 
 	bnx2x_fp_unlock_poll(fp);
 
@@ -4339,10 +4331,11 @@ static int bnx2x_alloc_fp_mem_at(struct bnx2x *bp, int index)
 				&bnx2x_fp(bp, index, rx_desc_mapping),
 				sizeof(struct eth_rx_bd) * NUM_RX_BD);
 
-		BNX2X_PCI_ALLOC(bnx2x_fp(bp, index, rx_comp_ring),
-				&bnx2x_fp(bp, index, rx_comp_mapping),
-				sizeof(struct eth_fast_path_rx_cqe) *
-				NUM_RCQ_BD);
+		/* Seed all CQEs by 1s */
+		BNX2X_PCI_FALLOC(bnx2x_fp(bp, index, rx_comp_ring),
+				 &bnx2x_fp(bp, index, rx_comp_mapping),
+				 sizeof(struct eth_fast_path_rx_cqe) *
+				 NUM_RCQ_BD);
 
 		/* SGE ring */
 		BNX2X_ALLOC(bnx2x_fp(bp, index, rx_page_ring),
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index a1a5cdc..c07a6d0 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -59,6 +59,16 @@ extern int int_mode;
 		   (unsigned long long)(*y), x); \
 	} while (0)
 
+#define BNX2X_PCI_FALLOC(x, y, size) \
+	do { \
+		x = dma_alloc_coherent(&bp->pdev->dev, size, y, GFP_KERNEL); \
+		if (x == NULL) \
+			goto alloc_mem_err; \
+		memset((void *)x, 0xFFFFFFFF, size); \
+		DP(NETIF_MSG_HW, "BNX2X_PCI_FALLOC: Physical %Lx Virtual %p\n",\
+		   (unsigned long long)(*y), x); \
+	} while (0)
+
 #define BNX2X_ALLOC(x, size) \
 	do { \
 		x = kzalloc(size, GFP_KERNEL); \
@@ -805,16 +815,18 @@ static inline bool bnx2x_has_tx_work(struct bnx2x_fastpath *fp)
 	return false;
 }
 
+#define BNX2X_IS_CQE_COMPLETED(cqe_fp) (cqe_fp->marker == 0x0)
+#define BNX2X_SEED_CQE(cqe_fp) (cqe_fp->marker = 0xFFFFFFFF)
 static inline int bnx2x_has_rx_work(struct bnx2x_fastpath *fp)
 {
-	u16 rx_cons_sb;
+	u16 cons;
+	union eth_rx_cqe *cqe;
+	struct eth_fast_path_rx_cqe *cqe_fp;
 
-	/* Tell compiler that status block fields can change */
-	barrier();
-	rx_cons_sb = le16_to_cpu(*fp->rx_cons_sb);
-	if ((rx_cons_sb & MAX_RCQ_DESC_CNT) == MAX_RCQ_DESC_CNT)
-		rx_cons_sb++;
-	return (fp->rx_comp_cons != rx_cons_sb);
+	cons = RCQ_BD(fp->rx_comp_cons);
+	cqe = &fp->rx_comp_ring[cons];
+	cqe_fp = &cqe->fast_path_cqe;
+	return BNX2X_IS_CQE_COMPLETED(cqe_fp);
 }
 
 /**
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 5ef3f96..5018e52 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -3818,7 +3818,8 @@ struct eth_fast_path_rx_cqe {
 	__le16 len_on_bd;
 	struct parsing_flags pars_flags;
 	union eth_sgl_or_raw_data sgl_or_raw_data;
-	__le32 reserved1[8];
+	__le32 reserved1[7];
+	u32 marker;
 };
 
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index e2e8705..f0d21fa 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -1866,7 +1866,6 @@ irqreturn_t bnx2x_interrupt(int irq, void *dev_instance)
 		mask = 0x2 << (fp->index + CNIC_SUPPORT(bp));
 		if (status & mask) {
 			/* Handle Rx or Tx according to SB id */
-			prefetch(fp->rx_cons_sb);
 			for_each_cos_in_tx_queue(fp, cos)
 				prefetch(fp->txdata_ptr[cos]->tx_cons_sb);
 			prefetch(&fp->sb_running_index[SM_RX_ID]);
-- 
cgit v0.10.2


From cf89d6b2803ab99ac596f95d585c3057d2be645c Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 20 Jun 2013 10:01:32 +0800
Subject: neigh: no need to call lookup_neigh_parms in neigh_parms_alloc

neigh_table.parms always exist and is initialized,kmemdup
can use it to create new neigh_parms, actually lookup_neigh_parms
here will return neigh_table.parms too.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index decaa4b..53eab51 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1429,15 +1429,11 @@ static inline struct neigh_parms *lookup_neigh_parms(struct neigh_table *tbl,
 struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
 				      struct neigh_table *tbl)
 {
-	struct neigh_parms *p, *ref;
+	struct neigh_parms *p;
 	struct net *net = dev_net(dev);
 	const struct net_device_ops *ops = dev->netdev_ops;
 
-	ref = lookup_neigh_parms(tbl, net, 0);
-	if (!ref)
-		return NULL;
-
-	p = kmemdup(ref, sizeof(*p), GFP_KERNEL);
+	p = kmemdup(&tbl->parms, sizeof(*p), GFP_KERNEL);
 	if (p) {
 		p->tbl		  = tbl;
 		atomic_set(&p->refcnt, 1);
-- 
cgit v0.10.2


From 170d6f99541600ec7512f1d2b0b0c349009098d2 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 20 Jun 2013 10:01:33 +0800
Subject: neigh: only allow init_net to change the default neigh_parms

Though we don't export the /proc/sys/net/ipv[4,6]/neigh/default/
directory to the un-init_net, but we can still use cmd such as
"ip ntable change name arp_cache locktime 129" to change the locktime
of default neigh_parms.

This patch disallows the un-init_net to find out the neigh_table.parms.
So the un-init_net will failed to influence the init_net.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 53eab51..86f9b16 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1419,7 +1419,7 @@ static inline struct neigh_parms *lookup_neigh_parms(struct neigh_table *tbl,
 
 	for (p = &tbl->parms; p; p = p->next) {
 		if ((p->dev && p->dev->ifindex == ifindex && net_eq(neigh_parms_net(p), net)) ||
-		    (!p->dev && !ifindex))
+		    (!p->dev && !ifindex && net_eq(net, &init_net)))
 			return p;
 	}
 
-- 
cgit v0.10.2


From dc25c676f54addb10e598daa9da9b8dd4fd487ab Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 20 Jun 2013 10:01:34 +0800
Subject: neigh: disallow un-init_net to change thresh of neigh

thresh and interval are global resources,
only init net can change them.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 86f9b16..2569ab2 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2049,6 +2049,12 @@ static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh)
 		}
 	}
 
+	err = -ENOENT;
+	if ((tb[NDTA_THRESH1] || tb[NDTA_THRESH2] ||
+	     tb[NDTA_THRESH3] || tb[NDTA_GC_INTERVAL]) &&
+	    !net_eq(net, &init_net))
+		goto errout_tbl_lock;
+
 	if (tb[NDTA_THRESH1])
 		tbl->gc_thresh1 = nla_get_u32(tb[NDTA_THRESH1]);
 
-- 
cgit v0.10.2


From eea86af6b1e18d6fa8dc959e3ddc0100f27aff9f Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 19 Jun 2013 12:51:20 +0200
Subject: net: sock: adapt SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF

The current situation is that SOCK_MIN_RCVBUF is 2048 + sizeof(struct sk_buff))
while SOCK_MIN_SNDBUF is 2048. Since in both cases, skb->truesize is used for
sk_{r,w}mem_alloc accounting, we should have both sizes adjusted via defining a
TCP_SKB_MIN_TRUESIZE.

Further, as Eric Dumazet points out, the minimal skb truesize in transmit path is
SKB_TRUESIZE(2048) after commit f07d960df33c5 ("tcp: avoid frag allocation for
small frames"), and tcp_sendmsg() tries to limit skb size to half the congestion
window, meaning we try to build two skbs at minimum. Thus, having SOCK_MIN_SNDBUF
as 2048 can hit a small regression for some applications setting to low
SO_SNDBUF / SO_RCVBUF. Note that we define a TCP_SKB_MIN_TRUESIZE, because
SKB_TRUESIZE(2048) adds SKB_DATA_ALIGN(sizeof(struct skb_shared_info)), but in
case of TCP skbs, the skb_shared_info is part of the 2048 bytes allocation for
skb->head.

The minor adaption in sk_stream_moderate_sndbuf() is to silence a warning by
using a typed max macro, as similarly done in SOCK_MIN_RCVBUF occurences, that
would appear otherwise.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sock.h b/include/net/sock.h
index 21db792..ea6206c 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2047,18 +2047,21 @@ static inline void sk_wake_async(struct sock *sk, int how, int band)
 		sock_wake_async(sk->sk_socket, how, band);
 }
 
-#define SOCK_MIN_SNDBUF 2048
-/*
- * Since sk_rmem_alloc sums skb->truesize, even a small frame might need
- * sizeof(sk_buff) + MTU + padding, unless net driver perform copybreak
+/* Since sk_{r,w}mem_alloc sums skb->truesize, even a small frame might
+ * need sizeof(sk_buff) + MTU + padding, unless net driver perform copybreak.
+ * Note: for send buffers, TCP works better if we can build two skbs at
+ * minimum.
  */
-#define SOCK_MIN_RCVBUF (2048 + sizeof(struct sk_buff))
+#define TCP_SKB_MIN_TRUESIZE	(2048 + sizeof(struct sk_buff))
+
+#define SOCK_MIN_SNDBUF		(TCP_SKB_MIN_TRUESIZE * 2)
+#define SOCK_MIN_RCVBUF		 TCP_SKB_MIN_TRUESIZE
 
 static inline void sk_stream_moderate_sndbuf(struct sock *sk)
 {
 	if (!(sk->sk_userlocks & SOCK_SNDBUF_LOCK)) {
 		sk->sk_sndbuf = min(sk->sk_sndbuf, sk->sk_wmem_queued >> 1);
-		sk->sk_sndbuf = max(sk->sk_sndbuf, SOCK_MIN_SNDBUF);
+		sk->sk_sndbuf = max_t(u32, sk->sk_sndbuf, SOCK_MIN_SNDBUF);
 	}
 }
 
-- 
cgit v0.10.2


From c2ff682a6f5c5ae2cb23b32bb4fd7a6fb059d4fc Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 19 Jun 2013 12:03:13 +0200
Subject: sit: fix an oops when IFLA_IPTUN_PROTO is not set

The use of this attribute has been added in 32b8a8e59c9c (sit: add IPv4 over
IPv4 support). It is optional, by default proto is IPPROTO_IPV6.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 6cee844..f639866 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1296,7 +1296,7 @@ static int ipip6_validate(struct nlattr *tb[], struct nlattr *data[])
 {
 	u8 proto;
 
-	if (!data)
+	if (!data || !data[IFLA_IPTUN_PROTO])
 		return 0;
 
 	proto = nla_get_u8(data[IFLA_IPTUN_PROTO]);
-- 
cgit v0.10.2


From 257a3feb3f144783184adb2df930331cbe36ff25 Mon Sep 17 00:00:00 2001
From: Sathya Perla <sathya.perla@emulex.com>
Date: Fri, 14 Jun 2013 15:54:51 +0530
Subject: be2net: use pci_vfs_assigned()/pci_num_vf() instead of be_find_vfs()

be_find_vfs() is no longer needed as the common PCI calls provide the same
functionality.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 98efc29..cd69ac7 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1262,30 +1262,6 @@ static int be_set_vf_tx_rate(struct net_device *netdev,
 	return status;
 }
 
-static int be_find_vfs(struct be_adapter *adapter, int vf_state)
-{
-	struct pci_dev *dev, *pdev = adapter->pdev;
-	int vfs = 0, assigned_vfs = 0, pos;
-	u16 offset, stride;
-
-	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
-	if (!pos)
-		return 0;
-	pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset);
-	pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride);
-
-	dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL);
-	while (dev) {
-		if (dev->is_virtfn && pci_physfn(dev) == pdev) {
-			vfs++;
-			if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
-				assigned_vfs++;
-		}
-		dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev);
-	}
-	return (vf_state == ASSIGNED) ? assigned_vfs : vfs;
-}
-
 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
 {
 	struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
@@ -2797,7 +2773,7 @@ static void be_vf_clear(struct be_adapter *adapter)
 	struct be_vf_cfg *vf_cfg;
 	u32 vf;
 
-	if (be_find_vfs(adapter, ASSIGNED)) {
+	if (pci_vfs_assigned(adapter->pdev)) {
 		dev_warn(&adapter->pdev->dev,
 			 "VFs are assigned to VMs: not disabling VFs\n");
 		goto done;
@@ -2899,7 +2875,7 @@ static int be_vf_setup(struct be_adapter *adapter)
 	int status, old_vfs, vf;
 	struct device *dev = &adapter->pdev->dev;
 
-	old_vfs = be_find_vfs(adapter, ENABLED);
+	old_vfs = pci_num_vf(adapter->pdev);
 	if (old_vfs) {
 		dev_info(dev, "%d VFs are already enabled\n", old_vfs);
 		if (old_vfs != num_vfs)
@@ -4200,9 +4176,10 @@ reschedule:
 	schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
 }
 
+/* If any VFs are already enabled don't FLR the PF */
 static bool be_reset_required(struct be_adapter *adapter)
 {
-	return be_find_vfs(adapter, ENABLED) > 0 ? false : true;
+	return pci_num_vf(adapter->pdev) ? false : true;
 }
 
 static char *mc_name(struct be_adapter *adapter)
-- 
cgit v0.10.2


From b88ec38d139c0aadc5fa48dff2b62e7b874a573d Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Tue, 18 Jun 2013 13:44:52 +0200
Subject: bonding: trivial: make alb use bond_slave_has_mac()

Also, cleanup bond_alb_handle_active_change() from 2 identical ifs.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 27fe329..4ea8ed1 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1129,6 +1129,7 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla
 {
 	int perm_curr_diff;
 	int perm_bond_diff;
+	struct slave *found_slave;
 
 	perm_curr_diff = !ether_addr_equal_64bits(slave->perm_hwaddr,
 						  slave->dev->dev_addr);
@@ -1136,21 +1137,12 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla
 						  bond->dev->dev_addr);
 
 	if (perm_curr_diff && perm_bond_diff) {
-		struct slave *tmp_slave;
-		int i, found = 0;
-
-		bond_for_each_slave(bond, tmp_slave, i) {
-			if (ether_addr_equal_64bits(slave->perm_hwaddr,
-						    tmp_slave->dev->dev_addr)) {
-				found = 1;
-				break;
-			}
-		}
+		found_slave = bond_slave_has_mac(bond, slave->perm_hwaddr);
 
-		if (found) {
+		if (found_slave) {
 			/* locking: needs RTNL and nothing else */
-			alb_swap_mac_addr(slave, tmp_slave);
-			alb_fasten_mac_swap(bond, slave, tmp_slave);
+			alb_swap_mac_addr(slave, found_slave);
+			alb_fasten_mac_swap(bond, slave, found_slave);
 		}
 	}
 }
@@ -1668,7 +1660,6 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
 	__acquires(&bond->curr_slave_lock)
 {
 	struct slave *swap_slave;
-	int i;
 
 	if (bond->curr_active_slave == new_slave) {
 		return;
@@ -1690,17 +1681,8 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
 	/* set the new curr_active_slave to the bonds mac address
 	 * i.e. swap mac addresses of old curr_active_slave and new curr_active_slave
 	 */
-	if (!swap_slave) {
-		struct slave *tmp_slave;
-		/* find slave that is holding the bond's mac address */
-		bond_for_each_slave(bond, tmp_slave, i) {
-			if (ether_addr_equal_64bits(tmp_slave->dev->dev_addr,
-						    bond->dev->dev_addr)) {
-				swap_slave = tmp_slave;
-				break;
-			}
-		}
-	}
+	if (!swap_slave)
+		swap_slave = bond_slave_has_mac(bond, bond->dev->dev_addr);
 
 	/*
 	 * Arrange for swap_slave and new_slave to temporarily be
@@ -1721,15 +1703,11 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
 	if (swap_slave) {
 		/* swap mac address */
 		alb_swap_mac_addr(swap_slave, new_slave);
-	} else {
-		/* set the new_slave to the bond mac address */
-		alb_set_slave_mac_addr(new_slave, bond->dev->dev_addr);
-	}
-
-	if (swap_slave) {
 		alb_fasten_mac_swap(bond, swap_slave, new_slave);
 		read_lock(&bond->lock);
 	} else {
+		/* set the new_slave to the bond mac address */
+		alb_set_slave_mac_addr(new_slave, bond->dev->dev_addr);
 		read_lock(&bond->lock);
 		alb_send_learning_packets(new_slave, bond->dev->dev_addr);
 	}
@@ -1746,9 +1724,8 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct sockaddr *sa = addr;
-	struct slave *slave, *swap_slave;
+	struct slave *swap_slave;
 	int res;
-	int i;
 
 	if (!is_valid_ether_addr(sa->sa_data)) {
 		return -EADDRNOTAVAIL;
@@ -1769,15 +1746,7 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr)
 		return 0;
 	}
 
-	swap_slave = NULL;
-
-	bond_for_each_slave(bond, slave, i) {
-		if (ether_addr_equal_64bits(slave->dev->dev_addr,
-					    bond_dev->dev_addr)) {
-			swap_slave = slave;
-			break;
-		}
-	}
+	swap_slave = bond_slave_has_mac(bond, bond_dev->dev_addr);
 
 	if (swap_slave) {
 		alb_swap_mac_addr(swap_slave, bond->curr_active_slave);
-- 
cgit v0.10.2


From 9ef71e0c820987c899e454e2e7ef94bc2d4c8d04 Mon Sep 17 00:00:00 2001
From: Weiping Pan <wpan@redhat.com>
Date: Tue, 18 Jun 2013 21:00:31 +0800
Subject: tcp:typo unset should be unsent

Signed-off-by: Weiping Pan <wpan@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 3dd46ea..e2c1333 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -185,7 +185,7 @@ static inline void tcp_event_ack_sent(struct sock *sk, unsigned int pkts)
 u32 tcp_default_init_rwnd(u32 mss)
 {
 	/* Initial receive window should be twice of TCP_INIT_CWND to
-	 * enable proper sending of new unset data during fast recovery
+	 * enable proper sending of new unsent data during fast recovery
 	 * (RFC 3517, Section 4, NextSeg() rule (2)). Further place a
 	 * limit when mss is larger than 1460.
 	 */
-- 
cgit v0.10.2


From a1606c7dc64d8449676d7e840dd2cd0c4e0a0c57 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Tue, 18 Jun 2013 03:24:51 +0100
Subject: net: Move MII out from under NET_CORE and hide it

All drivers that select MII also need to select NET_CORE because MII
depends on it.  This is a bit ridiculous because NET_CORE is just a
menu option that doesn't enable any code by itself.

There is also no need for it to be a visible option, since its users
all select it.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/cris/arch-v10/drivers/Kconfig b/arch/cris/arch-v10/drivers/Kconfig
index 5f2cdb3..8eab0c6 100644
--- a/arch/cris/arch-v10/drivers/Kconfig
+++ b/arch/cris/arch-v10/drivers/Kconfig
@@ -4,7 +4,6 @@ config ETRAX_ETHERNET
 	bool "Ethernet support"
 	depends on ETRAX_ARCH_V10
 	select ETHERNET
-	select NET_CORE
 	select MII
 	help
 	  This option enables the ETRAX 100LX built-in 10/100Mbit Ethernet
diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig
index c55971a..91c4e54 100644
--- a/arch/cris/arch-v32/drivers/Kconfig
+++ b/arch/cris/arch-v32/drivers/Kconfig
@@ -4,7 +4,6 @@ config ETRAX_ETHERNET
 	bool "Ethernet support"
 	depends on ETRAX_ARCH_V32
 	select ETHERNET
-	select NET_CORE
 	select MII
 	help
 	  This option enables the ETRAX FS built-in 10/100Mbit Ethernet
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 3835321..00aba08 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -25,6 +25,9 @@ menuconfig NETDEVICES
 # that for each of the symbols.
 if NETDEVICES
 
+config MII
+	tristate
+
 config NET_CORE
 	default y
 	bool "Network core driver support"
@@ -100,13 +103,6 @@ config NET_FC
 	  adaptor below. You also should have said Y to "SCSI support" and
 	  "SCSI generic support".
 
-config MII
-	tristate "Generic Media Independent Interface device support"
-	help
-	  Most ethernet controllers have MII transceiver either as an external
-	  or internal device.  It is safe to say Y or M here even if your
-	  ethernet card lacks MII.
-
 config IFB
 	tristate "Intermediate Functional Block support"
 	depends on NET_CLS_ACT
diff --git a/drivers/net/ethernet/3com/Kconfig b/drivers/net/ethernet/3com/Kconfig
index 1c71c76..f00c763 100644
--- a/drivers/net/ethernet/3com/Kconfig
+++ b/drivers/net/ethernet/3com/Kconfig
@@ -67,7 +67,6 @@ config PCMCIA_3C589
 config VORTEX
 	tristate "3c590/3c900 series (592/595/597) \"Vortex/Boomerang\" support"
 	depends on (PCI || EISA) && HAS_IOPORT
-	select NET_CORE
 	select MII
 	---help---
 	  This option enables driver support for a large number of 10Mbps and
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index 18fd6fb..a989669 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -64,7 +64,6 @@ config JME
 	tristate "JMicron(R) PCI-Express Gigabit Ethernet support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports the PCI-Express gigabit ethernet adapters
@@ -96,7 +95,6 @@ config FEALNX
 	tristate "Myson MTD-8xx PCI Ethernet support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  Say Y here to support the Myson MTD-800 family of PCI-based Ethernet
@@ -107,7 +105,6 @@ source "drivers/net/ethernet/8390/Kconfig"
 
 config NET_NETX
 	tristate "NetX Ethernet support"
-	select NET_CORE
 	select MII
 	depends on ARCH_NETX
 	---help---
@@ -125,7 +122,6 @@ source "drivers/net/ethernet/oki-semi/Kconfig"
 config ETHOC
 	tristate "OpenCores 10/100 Mbps Ethernet MAC support"
 	depends on HAS_IOMEM && HAS_DMA
-	select NET_CORE
 	select MII
 	select PHYLIB
 	select CRC32
diff --git a/drivers/net/ethernet/adaptec/Kconfig b/drivers/net/ethernet/adaptec/Kconfig
index 0bff571..5c804bb 100644
--- a/drivers/net/ethernet/adaptec/Kconfig
+++ b/drivers/net/ethernet/adaptec/Kconfig
@@ -22,7 +22,6 @@ config ADAPTEC_STARFIRE
 	tristate "Adaptec Starfire/DuraLAN support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  Say Y here if you have an Adaptec Starfire (or DuraLAN) PCI network
diff --git a/drivers/net/ethernet/adi/Kconfig b/drivers/net/ethernet/adi/Kconfig
index a948160..f952fff 100644
--- a/drivers/net/ethernet/adi/Kconfig
+++ b/drivers/net/ethernet/adi/Kconfig
@@ -23,7 +23,6 @@ config BFIN_MAC
 	tristate "Blackfin on-chip MAC support"
 	depends on (BF516 || BF518 || BF526 || BF527 || BF536 || BF537)
 	select CRC32
-	select NET_CORE
 	select MII
 	select PHYLIB
 	select BFIN_MAC_USE_L1 if DMA_UNCACHED_NONE
diff --git a/drivers/net/ethernet/allwinner/Kconfig b/drivers/net/ethernet/allwinner/Kconfig
index 66d3532..53ad213 100644
--- a/drivers/net/ethernet/allwinner/Kconfig
+++ b/drivers/net/ethernet/allwinner/Kconfig
@@ -24,7 +24,6 @@ config SUN4I_EMAC
 	depends on ARCH_SUNXI
 	depends on OF
 	select CRC32
-	select NET_CORE
 	select MII
 	select PHYLIB
         ---help---
diff --git a/drivers/net/ethernet/amd/Kconfig b/drivers/net/ethernet/amd/Kconfig
index 13d74aa..562df46 100644
--- a/drivers/net/ethernet/amd/Kconfig
+++ b/drivers/net/ethernet/amd/Kconfig
@@ -34,7 +34,6 @@ config AMD8111_ETH
 	tristate "AMD 8111 (new PCI LANCE) support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  If you have an AMD 8111-based PCI LANCE ethernet card,
@@ -60,7 +59,6 @@ config PCNET32
 	tristate "AMD PCnet32 PCI support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  If you have a PCnet32 or PCnetPCI based network (Ethernet) card,
diff --git a/drivers/net/ethernet/atheros/Kconfig b/drivers/net/ethernet/atheros/Kconfig
index ad6aa1e9..39e8d6c 100644
--- a/drivers/net/ethernet/atheros/Kconfig
+++ b/drivers/net/ethernet/atheros/Kconfig
@@ -22,7 +22,6 @@ config ATL2
 	tristate "Atheros L2 Fast Ethernet support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports the Atheros L2 fast ethernet adapter.
@@ -34,7 +33,6 @@ config ATL1
 	tristate "Atheros/Attansic L1 Gigabit Ethernet support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports the Atheros/Attansic L1 gigabit ethernet
@@ -47,7 +45,6 @@ config ATL1E
 	tristate "Atheros L1E Gigabit Ethernet support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports the Atheros L1E gigabit ethernet adapter.
@@ -59,7 +56,6 @@ config ATL1C
 	tristate "Atheros L1C Gigabit Ethernet support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports the Atheros L1C gigabit ethernet adapter.
diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index 3e69b3f..1d680ba 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -22,7 +22,6 @@ config B44
 	tristate "Broadcom 440x/47xx ethernet support"
 	depends on SSB_POSSIBLE && HAS_DMA
 	select SSB
-	select NET_CORE
 	select MII
 	---help---
 	  If you have a network (Ethernet) controller of this type, say Y
@@ -54,7 +53,6 @@ config B44_PCI
 config BCM63XX_ENET
 	tristate "Broadcom 63xx internal mac support"
 	depends on BCM63XX
-	select NET_CORE
 	select MII
 	select PHYLIB
 	help
diff --git a/drivers/net/ethernet/cirrus/Kconfig b/drivers/net/ethernet/cirrus/Kconfig
index 8388e36..7403dff 100644
--- a/drivers/net/ethernet/cirrus/Kconfig
+++ b/drivers/net/ethernet/cirrus/Kconfig
@@ -44,7 +44,6 @@ config CS89x0_PLATFORM
 config EP93XX_ETH
 	tristate "EP93xx Ethernet support"
 	depends on ARM && ARCH_EP93XX
-	select NET_CORE
 	select MII
 	help
 	  This is a driver for the ethernet hardware included in EP93xx CPUs.
diff --git a/drivers/net/ethernet/davicom/Kconfig b/drivers/net/ethernet/davicom/Kconfig
index 9745fe5..316c5e5 100644
--- a/drivers/net/ethernet/davicom/Kconfig
+++ b/drivers/net/ethernet/davicom/Kconfig
@@ -6,7 +6,6 @@ config DM9000
 	tristate "DM9000 support"
 	depends on ARM || BLACKFIN || MIPS || COLDFIRE
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  Support for DM9000 chipset.
diff --git a/drivers/net/ethernet/dec/tulip/Kconfig b/drivers/net/ethernet/dec/tulip/Kconfig
index 1df33c7..eb9ba6e 100644
--- a/drivers/net/ethernet/dec/tulip/Kconfig
+++ b/drivers/net/ethernet/dec/tulip/Kconfig
@@ -126,7 +126,6 @@ config WINBOND_840
 	tristate "Winbond W89c840 Ethernet support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This driver is for the Winbond W89c840 chip.  It also works with 
diff --git a/drivers/net/ethernet/dlink/Kconfig b/drivers/net/ethernet/dlink/Kconfig
index ee26ce7..c543ac1 100644
--- a/drivers/net/ethernet/dlink/Kconfig
+++ b/drivers/net/ethernet/dlink/Kconfig
@@ -36,7 +36,6 @@ config SUNDANCE
 	tristate "Sundance Alta support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This driver is for the Sundance "Alta" chip.
diff --git a/drivers/net/ethernet/faraday/Kconfig b/drivers/net/ethernet/faraday/Kconfig
index b8974b9..5918c68 100644
--- a/drivers/net/ethernet/faraday/Kconfig
+++ b/drivers/net/ethernet/faraday/Kconfig
@@ -21,7 +21,6 @@ if NET_VENDOR_FARADAY
 config FTMAC100
 	tristate "Faraday FTMAC100 10/100 Ethernet support"
 	depends on ARM
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports the FTMAC100 10/100 Ethernet controller
diff --git a/drivers/net/ethernet/freescale/fs_enet/Kconfig b/drivers/net/ethernet/freescale/fs_enet/Kconfig
index 268414d..be92229 100644
--- a/drivers/net/ethernet/freescale/fs_enet/Kconfig
+++ b/drivers/net/ethernet/freescale/fs_enet/Kconfig
@@ -1,7 +1,6 @@
 config FS_ENET
        tristate "Freescale Ethernet Driver"
        depends on NET_VENDOR_FREESCALE && (CPM1 || CPM2 || PPC_MPC512x)
-       select NET_CORE
        select MII
        select PHYLIB
 
diff --git a/drivers/net/ethernet/icplus/Kconfig b/drivers/net/ethernet/icplus/Kconfig
index 5119ef1..14a66e9 100644
--- a/drivers/net/ethernet/icplus/Kconfig
+++ b/drivers/net/ethernet/icplus/Kconfig
@@ -5,7 +5,6 @@
 config IP1000
 	tristate "IP1000 Gigabit Ethernet support"
 	depends on PCI
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports IP1000 gigabit Ethernet cards.
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 05f7264..f0e7ed2 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -20,7 +20,6 @@ if NET_VENDOR_INTEL
 config E100
 	tristate "Intel(R) PRO/100+ support"
 	depends on PCI
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports Intel(R) PRO/100 family of adapters.
diff --git a/drivers/net/ethernet/micrel/Kconfig b/drivers/net/ethernet/micrel/Kconfig
index fe42fc0..d16b11e 100644
--- a/drivers/net/ethernet/micrel/Kconfig
+++ b/drivers/net/ethernet/micrel/Kconfig
@@ -22,7 +22,6 @@ if NET_VENDOR_MICREL
 config ARM_KS8695_ETHER
 	tristate "KS8695 Ethernet support"
 	depends on ARM && ARCH_KS8695
-	select NET_CORE
 	select MII
 	---help---
 	  If you wish to compile a kernel for the KS8695 and want to
@@ -39,7 +38,6 @@ config KS8842
 config KS8851
 	tristate "Micrel KS8851 SPI"
 	depends on SPI
-	select NET_CORE
 	select MII
 	select CRC32
 	select EEPROM_93CX6
@@ -49,7 +47,6 @@ config KS8851
 config KS8851_MLL
 	tristate "Micrel KS8851 MLL"
 	depends on HAS_IOMEM
-	select NET_CORE
 	select MII
 	---help---
 	  This platform driver is for Micrel KS8851 Address/data bus
@@ -58,7 +55,6 @@ config KS8851_MLL
 config KSZ884X_PCI
 	tristate "Micrel KSZ8841/2 PCI"
 	depends on PCI
-	select NET_CORE
 	select MII
 	select CRC32
 	---help---
diff --git a/drivers/net/ethernet/nuvoton/Kconfig b/drivers/net/ethernet/nuvoton/Kconfig
index 334c171..01182b5 100644
--- a/drivers/net/ethernet/nuvoton/Kconfig
+++ b/drivers/net/ethernet/nuvoton/Kconfig
@@ -22,7 +22,6 @@ config W90P910_ETH
 	tristate "Nuvoton w90p910 Ethernet support"
 	depends on ARM && ARCH_W90X900
 	select PHYLIB
-	select NET_CORE
 	select MII
 	---help---
 	  Say Y here if you want to use built-in Ethernet ports
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
index 34d05bf..cb22341 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/Kconfig
@@ -5,7 +5,6 @@
 config PCH_GBE
 	tristate "OKI SEMICONDUCTOR IOH(ML7223/ML7831) GbE"
 	depends on PCI
-	select NET_CORE
 	select MII
 	select PTP_1588_CLOCK_PCH
 	---help---
diff --git a/drivers/net/ethernet/packetengines/Kconfig b/drivers/net/ethernet/packetengines/Kconfig
index cbbeca3..8d51800 100644
--- a/drivers/net/ethernet/packetengines/Kconfig
+++ b/drivers/net/ethernet/packetengines/Kconfig
@@ -21,7 +21,6 @@ if NET_PACKET_ENGINE
 config HAMACHI
 	tristate "Packet Engines Hamachi GNIC-II support"
 	depends on PCI
-	select NET_CORE
 	select MII
 	---help---
 	  If you have a Gigabit Ethernet card of this type, say Y and read
diff --git a/drivers/net/ethernet/rdc/Kconfig b/drivers/net/ethernet/rdc/Kconfig
index c8ba4b3..2055f7e 100644
--- a/drivers/net/ethernet/rdc/Kconfig
+++ b/drivers/net/ethernet/rdc/Kconfig
@@ -22,7 +22,6 @@ config R6040
 	tristate "RDC R6040 Fast Ethernet Adapter support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	select PHYLIB
 	---help---
diff --git a/drivers/net/ethernet/realtek/Kconfig b/drivers/net/ethernet/realtek/Kconfig
index 783fa8b..ae5d027 100644
--- a/drivers/net/ethernet/realtek/Kconfig
+++ b/drivers/net/ethernet/realtek/Kconfig
@@ -37,7 +37,6 @@ config 8139CP
 	tristate "RealTek RTL-8139 C+ PCI Fast Ethernet Adapter support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This is a driver for the Fast Ethernet PCI network cards based on
@@ -52,7 +51,6 @@ config 8139TOO
 	tristate "RealTek RTL-8129/8130/8139 PCI Fast Ethernet Adapter support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This is a driver for the Fast Ethernet PCI network cards based on
@@ -107,7 +105,6 @@ config R8169
 	depends on PCI
 	select FW_LOADER
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  Say Y here if you have a Realtek 8169 PCI Gigabit Ethernet adapter.
diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig
index 267eac0..544514e 100644
--- a/drivers/net/ethernet/renesas/Kconfig
+++ b/drivers/net/ethernet/renesas/Kconfig
@@ -5,7 +5,6 @@
 config SH_ETH
 	tristate "Renesas SuperH Ethernet support"
 	select CRC32
-	select NET_CORE
 	select MII
 	select MDIO_BITBANG
 	select PHYLIB
diff --git a/drivers/net/ethernet/sgi/Kconfig b/drivers/net/ethernet/sgi/Kconfig
index c1c4bb8..e832f46 100644
--- a/drivers/net/ethernet/sgi/Kconfig
+++ b/drivers/net/ethernet/sgi/Kconfig
@@ -22,7 +22,6 @@ config SGI_IOC3_ETH
 	bool "SGI IOC3 Ethernet"
 	depends on PCI && SGI_IP27
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  If you have a network (Ethernet) card of this type, say Y and read
diff --git a/drivers/net/ethernet/sis/Kconfig b/drivers/net/ethernet/sis/Kconfig
index f1135cc..68d052b 100644
--- a/drivers/net/ethernet/sis/Kconfig
+++ b/drivers/net/ethernet/sis/Kconfig
@@ -22,7 +22,6 @@ config SIS900
 	tristate "SiS 900/7016 PCI Fast Ethernet Adapter support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This is a driver for the Fast Ethernet PCI network cards based on
@@ -39,7 +38,6 @@ config SIS190
 	tristate "SiS190/SiS191 gigabit ethernet support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  Say Y here if you have a SiS 190 PCI Fast Ethernet adapter or
diff --git a/drivers/net/ethernet/smsc/Kconfig b/drivers/net/ethernet/smsc/Kconfig
index ff9e994..068fc44 100644
--- a/drivers/net/ethernet/smsc/Kconfig
+++ b/drivers/net/ethernet/smsc/Kconfig
@@ -37,7 +37,6 @@ config SMC9194
 config SMC91X
 	tristate "SMC 91C9x/91C1xxx support"
 	select CRC32
-	select NET_CORE
 	select MII
 	depends on (ARM || M32R || SUPERH || MIPS || BLACKFIN || \
 		    MN10300 || COLDFIRE || ARM64)
@@ -57,7 +56,6 @@ config PCMCIA_SMC91C92
 	tristate "SMC 91Cxx PCMCIA support"
 	depends on PCMCIA
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  Say Y here if you intend to attach an SMC 91Cxx compatible PCMCIA
@@ -70,7 +68,6 @@ config EPIC100
 	tristate "SMC EtherPower II"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  This driver is for the SMC EtherPower II 9432 PCI Ethernet NIC,
@@ -81,7 +78,6 @@ config EPIC100
 config SMC911X
 	tristate "SMSC LAN911[5678] support"
 	select CRC32
-	select NET_CORE
 	select MII
 	depends on (ARM || SUPERH || MN10300)
 	---help---
@@ -99,7 +95,6 @@ config SMSC911X
 	tristate "SMSC LAN911x/LAN921x families embedded ethernet support"
 	depends on HAS_IOMEM
 	select CRC32
-	select NET_CORE
 	select MII
 	select PHYLIB
 	---help---
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index 43c1f32..6e52c0f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -1,7 +1,6 @@
 config STMMAC_ETH
 	tristate "STMicroelectronics 10/100/1000 Ethernet driver"
 	depends on HAS_IOMEM && HAS_DMA
-	select NET_CORE
 	select MII
 	select PHYLIB
 	select CRC32
diff --git a/drivers/net/ethernet/via/Kconfig b/drivers/net/ethernet/via/Kconfig
index 6a87097..8a049a2 100644
--- a/drivers/net/ethernet/via/Kconfig
+++ b/drivers/net/ethernet/via/Kconfig
@@ -21,7 +21,6 @@ config VIA_RHINE
 	tristate "VIA Rhine support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MII
 	---help---
 	  If you have a VIA "Rhine" based network card (Rhine-I (VT86C100A),
@@ -47,7 +46,6 @@ config VIA_VELOCITY
 	depends on (PCI || USE_OF)
 	select CRC32
 	select CRC_CCITT
-	select NET_CORE
 	select MII
 	---help---
 	  If you have a VIA "Velocity" based network card say Y here.
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 287cc62..d84bfd4 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -67,7 +67,6 @@ config USB_KAWETH
 
 config USB_PEGASUS
 	tristate "USB Pegasus/Pegasus-II based ethernet device support"
-	select NET_CORE
 	select MII
 	---help---
 	  Say Y here if you know you have Pegasus or Pegasus-II based adapter.
@@ -83,7 +82,6 @@ config USB_PEGASUS
 
 config USB_RTL8150
 	tristate "USB RTL8150 based ethernet device support"
-	select NET_CORE
 	select MII
 	help
 	  Say Y here if you have RTL8150 based usb-ethernet adapter.
@@ -95,7 +93,6 @@ config USB_RTL8150
 
 config USB_RTL8152
 	tristate "Realtek RTL8152 Based USB 2.0 Ethernet Adapters"
-	select NET_CORE
 	select MII
 	help
 	  This option adds support for Realtek RTL8152 based USB 2.0
@@ -106,7 +103,6 @@ config USB_RTL8152
 
 config USB_USBNET
 	tristate "Multi-purpose USB Networking Framework"
-	select NET_CORE
 	select MII
 	---help---
 	  This driver supports several kinds of network links over USB,
diff --git a/drivers/staging/silicom/Kconfig b/drivers/staging/silicom/Kconfig
index eda2e7d..fc082db 100644
--- a/drivers/staging/silicom/Kconfig
+++ b/drivers/staging/silicom/Kconfig
@@ -32,7 +32,6 @@ config BPCTL
 	depends on PCI && NET
 	depends on m
 	select SBYPASS
-	select NET_CORE
 	select MII
 	---help---
 	  If you have a network (Ethernet) controller of this type, say Y
-- 
cgit v0.10.2


From d6cf7a86ce50ab9aded00a01ba55b6cd6b87209d Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Tue, 18 Jun 2013 03:27:29 +0100
Subject: at91_ether: Do not select NET_CORE

This has no dependency on any of the drivers under NET_CORE.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig
index 768285e..8030cc0 100644
--- a/drivers/net/ethernet/cadence/Kconfig
+++ b/drivers/net/ethernet/cadence/Kconfig
@@ -23,7 +23,6 @@ if NET_CADENCE
 config ARM_AT91_ETHER
 	tristate "AT91RM9200 Ethernet support"
 	depends on GENERIC_HARDIRQS && HAS_DMA
-	select NET_CORE
 	select MACB
 	---help---
 	  If you wish to compile a kernel for the AT91RM9200 and enable
-- 
cgit v0.10.2


From 2206209e758e3d930a550bacfc0db6303e2df6bd Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Tue, 18 Jun 2013 03:37:05 +0100
Subject: net: Add missing dependencies on NETDEVICES

ETRAX_ETHERNET selects ETHERNET and MII, which depend on NETDEVICES.
I don't think anything should select NETDEVICES, so make it a
dependency.  It also doesn't need to select or depend on ETHERNET,
which has nothing to do with the Ethernet library functions.

BPCTL selects MII, which depends on NETDEVICES.  But everything in the
drivers/staging/silicom directory is related to net devices, so make
NET_VENDOR_SILICOM depend on NETDEVICES and remove the now-redundant
dependencies on NET.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/cris/arch-v10/drivers/Kconfig b/arch/cris/arch-v10/drivers/Kconfig
index 8eab0c6..daf5f19 100644
--- a/arch/cris/arch-v10/drivers/Kconfig
+++ b/arch/cris/arch-v10/drivers/Kconfig
@@ -2,8 +2,7 @@ if ETRAX_ARCH_V10
 
 config ETRAX_ETHERNET
 	bool "Ethernet support"
-	depends on ETRAX_ARCH_V10
-	select ETHERNET
+	depends on ETRAX_ARCH_V10 && NETDEVICES
 	select MII
 	help
 	  This option enables the ETRAX 100LX built-in 10/100Mbit Ethernet
diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig
index 91c4e54..4f22350 100644
--- a/arch/cris/arch-v32/drivers/Kconfig
+++ b/arch/cris/arch-v32/drivers/Kconfig
@@ -2,8 +2,7 @@ if ETRAX_ARCH_V32
 
 config ETRAX_ETHERNET
 	bool "Ethernet support"
-	depends on ETRAX_ARCH_V32
-	select ETHERNET
+	depends on ETRAX_ARCH_V32 && NETDEVICES
 	select MII
 	help
 	  This option enables the ETRAX FS built-in 10/100Mbit Ethernet
diff --git a/drivers/staging/silicom/Kconfig b/drivers/staging/silicom/Kconfig
index fc082db..6651bd8 100644
--- a/drivers/staging/silicom/Kconfig
+++ b/drivers/staging/silicom/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_SILICOM
 	bool "Silicom devices"
 	default y
-	depends on PCI
+	depends on PCI && NETDEVICES
 	---help---
 	  If you have a network card (Ethernet) belonging to this class,
 	  say Y.
@@ -19,7 +19,7 @@ if NET_VENDOR_SILICOM
 
 config SBYPASS
 	tristate "Silicom BypassCTL library support"
-	depends on PCI && NET
+	depends on PCI
 	depends on m
 	---help---
 	  If you have a network (Ethernet) controller of this type, say Y
@@ -29,7 +29,7 @@ config SBYPASS
 
 config BPCTL
 	tristate "Silicom BypassCTL net support"
-	depends on PCI && NET
+	depends on PCI
 	depends on m
 	select SBYPASS
 	select MII
-- 
cgit v0.10.2


From b8a39dd292af453f42ebcdbad229f7d9d1282ec2 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 18 Jun 2013 16:05:39 +0800
Subject: Bnx2x: remove redundant D0 power state set

Pci_enable_device() will set device power state to D0,
so it's no need to do it again in bnx2x_init_dev().
Also remove redundant PM Cap find code, because pci core
has been saved the pci device pm cap value.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index f0d21fa..c962d66 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12091,7 +12091,7 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
 	}
 
 	if (IS_PF(bp)) {
-		bp->pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
+		bp->pm_cap = pdev->pm_cap;
 		if (bp->pm_cap == 0) {
 			dev_err(&bp->pdev->dev,
 				"Cannot find power management capability, aborting\n");
@@ -12140,8 +12140,6 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
 	}
 	BNX2X_DEV_INFO("me reg PF num: %d\n", bp->pf_num);
 
-	bnx2x_set_power_state(bp, PCI_D0);
-
 	/* clean indirect addresses */
 	pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS,
 			       PCICFG_VENDOR_ID_OFFSET);
-- 
cgit v0.10.2


From f9c7da5eaf10fa1d7a91b83aefc6fb8e3a4ad39c Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 18 Jun 2013 16:06:37 +0800
Subject: amd8111e: use pdev->pm_cap instead of pci_find_capability(..,
 PCI_CAP_ID_PM)

Pci core has been saved pm cap register offset by pdev->pm_cap in pci_pm_init()
in init path. So we can use pdev->pm_cap instead of using
pci_find_capability(pdev, PCI_CAP_ID_PM) for better performance and simplified code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: netdev@vger.kernel.org (open list:NETWORKING DRIVERS)
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/amd/amd8111e.c b/drivers/net/ethernet/amd/amd8111e.c
index bc71aec..1b1429d 100644
--- a/drivers/net/ethernet/amd/amd8111e.c
+++ b/drivers/net/ethernet/amd/amd8111e.c
@@ -1813,7 +1813,7 @@ static const struct net_device_ops amd8111e_netdev_ops = {
 static int amd8111e_probe_one(struct pci_dev *pdev,
 				  const struct pci_device_id *ent)
 {
-	int err,i,pm_cap;
+	int err, i;
 	unsigned long reg_addr,reg_len;
 	struct amd8111e_priv* lp;
 	struct net_device* dev;
@@ -1842,7 +1842,7 @@ static int amd8111e_probe_one(struct pci_dev *pdev,
 	pci_set_master(pdev);
 
 	/* Find power-management capability. */
-	if((pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM))==0){
+	if (!pdev->pm_cap) {
 		printk(KERN_ERR "amd8111e: No Power Management capability, "
 		       "exiting.\n");
 		err = -ENODEV;
@@ -1875,7 +1875,7 @@ static int amd8111e_probe_one(struct pci_dev *pdev,
 	lp = netdev_priv(dev);
 	lp->pci_dev = pdev;
 	lp->amd8111e_net_dev = dev;
-	lp->pm_cap = pm_cap;
+	lp->pm_cap = pdev->pm_cap;
 
 	spin_lock_init(&lp->lock);
 
-- 
cgit v0.10.2


From 85768271315bd368c86a0783bf0c85019afbabec Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 18 Jun 2013 16:12:37 +0800
Subject: bnx2: use pdev->pm_cap instead of pci_find_capability(..,
 PCI_CAP_ID_PM)

Pci core has been saved pm cap register offset by pdev->pm_cap in pci_pm_init()
in init path. So we can use pdev->pm_cap instead of using
pci_find_capability(pdev, PCI_CAP_ID_PM) for better performance and simplified code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 1a1b23e..6a2de1d 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -8104,7 +8104,7 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
 
 	pci_set_master(pdev);
 
-	bp->pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
+	bp->pm_cap = pdev->pm_cap;
 	if (bp->pm_cap == 0) {
 		dev_err(&pdev->dev,
 			"Cannot find power management capability, aborting\n");
-- 
cgit v0.10.2


From 2c0740e4e122239bcf6127fd2063733c5fb20c93 Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Mon, 17 Jun 2013 22:26:52 -0400
Subject: sctp: Convert __list_for_each use to list_for_each

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 57b568c..1de49c8 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -178,7 +178,7 @@ static void sctp_get_local_addr_list(struct net *net)
 
 	rcu_read_lock();
 	for_each_netdev_rcu(net, dev) {
-		__list_for_each(pos, &sctp_address_families) {
+		list_for_each(pos, &sctp_address_families) {
 			af = list_entry(pos, struct sctp_af, list);
 			af->copy_addrlist(&net->sctp.local_addr_list, dev);
 		}
-- 
cgit v0.10.2


From bcefe17cffd06efdda3e7ad679ea743236e6271a Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Sat, 15 Jun 2013 09:39:18 +0800
Subject: tcp: introduce a per-route knob for quick ack

In previous discussions, I tried to find some reasonable heuristics
for delayed ACK, however this seems not possible, according to Eric:

	"ACKS might also be delayed because of bidirectional
	traffic, and is more controlled by the application
	response time. TCP stack can not easily estimate it."

	"ACK can be incredibly useful to recover from losses in
	a short time.

	The vast majority of TCP sessions are small lived, and we
	send one ACK per received segment anyway at beginning or
	retransmits to let the sender smoothly increase its cwnd,
	so an auto-tuning facility wont help them that much."

and according to David:

	"ACKs are the only information we have to detect loss.

	And, for the same reasons that TCP VEGAS is fundamentally
	broken, we cannot measure the pipe or some other
	receiver-side-visible piece of information to determine
	when it's "safe" to stretch ACK.

	And even if it's "safe", we should not do it so that losses are
	accurately detected and we don't spuriously retransmit.

	The only way to know when the bandwidth increases is to
	"test" it, by sending more and more packets until drops happen.
	That's why all successful congestion control algorithms must
	operate on explicited tested pieces of information.

	Similarly, it's not really possible to universally know if
	it's safe to stretch ACK or not."

It still makes sense to enable or disable quick ack mode like
what TCP_QUICK_ACK does.

Similar to TCP_QUICK_ACK option, but for people who can't
modify the source code and still wants to control
TCP delayed ACK behavior. As David suggested, this should belong
to per-path scope, since different pathes may want different
behaviors.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Rick Jones <rick.jones2@hp.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Graf <tgraf@suug.ch>
CC: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index 7a2144e..eb0f1a5 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -386,6 +386,8 @@ enum {
 #define RTAX_RTO_MIN RTAX_RTO_MIN
 	RTAX_INITRWND,
 #define RTAX_INITRWND RTAX_INITRWND
+	RTAX_QUICKACK,
+#define RTAX_QUICKACK RTAX_QUICKACK
 	__RTAX_MAX
 };
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 46271cdc..28af45a 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3717,6 +3717,7 @@ void tcp_reset(struct sock *sk)
 static void tcp_fin(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
+	const struct dst_entry *dst;
 
 	inet_csk_schedule_ack(sk);
 
@@ -3728,7 +3729,9 @@ static void tcp_fin(struct sock *sk)
 	case TCP_ESTABLISHED:
 		/* Move to CLOSE_WAIT */
 		tcp_set_state(sk, TCP_CLOSE_WAIT);
-		inet_csk(sk)->icsk_ack.pingpong = 1;
+		dst = __sk_dst_get(sk);
+		if (!dst || !dst_metric(dst, RTAX_QUICKACK))
+			inet_csk(sk)->icsk_ack.pingpong = 1;
 		break;
 
 	case TCP_CLOSE_WAIT:
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e2c1333..3d60949 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -160,6 +160,7 @@ static void tcp_event_data_sent(struct tcp_sock *tp,
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	const u32 now = tcp_time_stamp;
+	const struct dst_entry *dst = __sk_dst_get(sk);
 
 	if (sysctl_tcp_slow_start_after_idle &&
 	    (!tp->packets_out && (s32)(now - tp->lsndtime) > icsk->icsk_rto))
@@ -170,8 +171,9 @@ static void tcp_event_data_sent(struct tcp_sock *tp,
 	/* If it is a reply for ato after last received
 	 * packet, enter pingpong mode.
 	 */
-	if ((u32)(now - icsk->icsk_ack.lrcvtime) < icsk->icsk_ack.ato)
-		icsk->icsk_ack.pingpong = 1;
+	if ((u32)(now - icsk->icsk_ack.lrcvtime) < icsk->icsk_ack.ato &&
+	    (!dst || !dst_metric(dst, RTAX_QUICKACK)))
+			icsk->icsk_ack.pingpong = 1;
 }
 
 /* Account for an ACK we sent. */
-- 
cgit v0.10.2


From c9364636dcb01a6fc37ca2c6a51c5aa0c663013c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 15 Jun 2013 03:30:10 -0700
Subject: htb: refactor struct htb_sched fields for performance

htb_sched structures are big, and source of false sharing on SMP.

Every time a packet is queued or dequeue, many cache lines must be
touched because structures are not lay out properly.

By carefully splitting htb_sched in two parts, and define sub structures
to increase data locality, we can improve performance dramatically on
SMP.

New htb_prio structure can also be used in htb_class to increase data
locality.

I got 26 % performance increase on a 24 threads machine, with 200
concurrent netperf in TCP_RR mode, using a HTB hierarchy of 4 classes.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 7954e73..c2124ea 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -76,6 +76,20 @@ enum htb_cmode {
 	HTB_CAN_SEND		/* class can send */
 };
 
+struct htb_prio {
+	union {
+		struct rb_root	row;
+		struct rb_root	feed;
+	};
+	struct rb_node	*ptr;
+	/* When class changes from state 1->2 and disconnects from
+	 * parent's feed then we lost ptr value and start from the
+	 * first child again. Here we store classid of the
+	 * last valid ptr (used when ptr is NULL).
+	 */
+	u32		last_ptr_id;
+};
+
 /* interior & leaf nodes; props specific to leaves are marked L:
  * To reduce false sharing, place mostly read fields at beginning,
  * and mostly written ones at the end.
@@ -112,19 +126,12 @@ struct htb_class {
 
 	union {
 		struct htb_class_leaf {
-			struct Qdisc *q;
-			int deficit[TC_HTB_MAXDEPTH];
 			struct list_head drop_list;
+			int		deficit[TC_HTB_MAXDEPTH];
+			struct Qdisc	*q;
 		} leaf;
 		struct htb_class_inner {
-			struct rb_root feed[TC_HTB_NUMPRIO];	/* feed trees */
-			struct rb_node *ptr[TC_HTB_NUMPRIO];	/* current class ptr */
-			/* When class changes from state 1->2 and disconnects from
-			 * parent's feed then we lost ptr value and start from the
-			 * first child again. Here we store classid of the
-			 * last valid ptr (used when ptr is NULL).
-			 */
-			u32 last_ptr_id[TC_HTB_NUMPRIO];
+			struct htb_prio clprio[TC_HTB_NUMPRIO];
 		} inner;
 	} un;
 	s64			pq_key;
@@ -135,40 +142,39 @@ struct htb_class {
 	struct rb_node		node[TC_HTB_NUMPRIO];	/* node for self or feed tree */
 };
 
+struct htb_level {
+	struct rb_root	wait_pq;
+	struct htb_prio hprio[TC_HTB_NUMPRIO];
+};
+
 struct htb_sched {
 	struct Qdisc_class_hash clhash;
-	struct list_head drops[TC_HTB_NUMPRIO];/* active leaves (for drops) */
-
-	/* self list - roots of self generating tree */
-	struct rb_root row[TC_HTB_MAXDEPTH][TC_HTB_NUMPRIO];
-	int row_mask[TC_HTB_MAXDEPTH];
-	struct rb_node *ptr[TC_HTB_MAXDEPTH][TC_HTB_NUMPRIO];
-	u32 last_ptr_id[TC_HTB_MAXDEPTH][TC_HTB_NUMPRIO];
+	int			defcls;		/* class where unclassified flows go to */
+	int			rate2quantum;	/* quant = rate / rate2quantum */
 
-	/* self wait list - roots of wait PQs per row */
-	struct rb_root wait_pq[TC_HTB_MAXDEPTH];
+	/* filters for qdisc itself */
+	struct tcf_proto	*filter_list;
 
-	/* time of nearest event per level (row) */
-	s64	near_ev_cache[TC_HTB_MAXDEPTH];
+#define HTB_WARN_TOOMANYEVENTS	0x1
+	unsigned int		warned;	/* only one warning */
+	int			direct_qlen;
+	struct work_struct	work;
 
-	int defcls;		/* class where unclassified flows go to */
+	/* non shaped skbs; let them go directly thru */
+	struct sk_buff_head	direct_queue;
+	long			direct_pkts;
 
-	/* filters for qdisc itself */
-	struct tcf_proto *filter_list;
+	struct qdisc_watchdog	watchdog;
 
-	int	rate2quantum;	/* quant = rate / rate2quantum */
-	s64	now;	/* cached dequeue time */
-	struct qdisc_watchdog watchdog;
+	s64			now;	/* cached dequeue time */
+	struct list_head	drops[TC_HTB_NUMPRIO];/* active leaves (for drops) */
 
-	/* non shaped skbs; let them go directly thru */
-	struct sk_buff_head direct_queue;
-	int direct_qlen;	/* max qlen of above */
+	/* time of nearest event per level (row) */
+	s64			near_ev_cache[TC_HTB_MAXDEPTH];
 
-	long direct_pkts;
+	int			row_mask[TC_HTB_MAXDEPTH];
 
-#define HTB_WARN_TOOMANYEVENTS	0x1
-	unsigned int warned;	/* only one warning */
-	struct work_struct work;
+	struct htb_level	hlevel[TC_HTB_MAXDEPTH];
 };
 
 /* find class in global hash table using given handle */
@@ -284,7 +290,7 @@ static void htb_add_to_id_tree(struct rb_root *root,
 static void htb_add_to_wait_tree(struct htb_sched *q,
 				 struct htb_class *cl, s64 delay)
 {
-	struct rb_node **p = &q->wait_pq[cl->level].rb_node, *parent = NULL;
+	struct rb_node **p = &q->hlevel[cl->level].wait_pq.rb_node, *parent = NULL;
 
 	cl->pq_key = q->now + delay;
 	if (cl->pq_key == q->now)
@@ -304,7 +310,7 @@ static void htb_add_to_wait_tree(struct htb_sched *q,
 			p = &parent->rb_left;
 	}
 	rb_link_node(&cl->pq_node, parent, p);
-	rb_insert_color(&cl->pq_node, &q->wait_pq[cl->level]);
+	rb_insert_color(&cl->pq_node, &q->hlevel[cl->level].wait_pq);
 }
 
 /**
@@ -331,7 +337,7 @@ static inline void htb_add_class_to_row(struct htb_sched *q,
 	while (mask) {
 		int prio = ffz(~mask);
 		mask &= ~(1 << prio);
-		htb_add_to_id_tree(q->row[cl->level] + prio, cl, prio);
+		htb_add_to_id_tree(&q->hlevel[cl->level].hprio[prio].row, cl, prio);
 	}
 }
 
@@ -357,16 +363,18 @@ static inline void htb_remove_class_from_row(struct htb_sched *q,
 						 struct htb_class *cl, int mask)
 {
 	int m = 0;
+	struct htb_level *hlevel = &q->hlevel[cl->level];
 
 	while (mask) {
 		int prio = ffz(~mask);
+		struct htb_prio *hprio = &hlevel->hprio[prio];
 
 		mask &= ~(1 << prio);
-		if (q->ptr[cl->level][prio] == cl->node + prio)
-			htb_next_rb_node(q->ptr[cl->level] + prio);
+		if (hprio->ptr == cl->node + prio)
+			htb_next_rb_node(&hprio->ptr);
 
-		htb_safe_rb_erase(cl->node + prio, q->row[cl->level] + prio);
-		if (!q->row[cl->level][prio].rb_node)
+		htb_safe_rb_erase(cl->node + prio, &hprio->row);
+		if (!hprio->row.rb_node)
 			m |= 1 << prio;
 	}
 	q->row_mask[cl->level] &= ~m;
@@ -390,13 +398,13 @@ static void htb_activate_prios(struct htb_sched *q, struct htb_class *cl)
 			int prio = ffz(~m);
 			m &= ~(1 << prio);
 
-			if (p->un.inner.feed[prio].rb_node)
+			if (p->un.inner.clprio[prio].feed.rb_node)
 				/* parent already has its feed in use so that
 				 * reset bit in mask as parent is already ok
 				 */
 				mask &= ~(1 << prio);
 
-			htb_add_to_id_tree(p->un.inner.feed + prio, cl, prio);
+			htb_add_to_id_tree(&p->un.inner.clprio[prio].feed, cl, prio);
 		}
 		p->prio_activity |= mask;
 		cl = p;
@@ -426,18 +434,19 @@ static void htb_deactivate_prios(struct htb_sched *q, struct htb_class *cl)
 			int prio = ffz(~m);
 			m &= ~(1 << prio);
 
-			if (p->un.inner.ptr[prio] == cl->node + prio) {
+			if (p->un.inner.clprio[prio].ptr == cl->node + prio) {
 				/* we are removing child which is pointed to from
 				 * parent feed - forget the pointer but remember
 				 * classid
 				 */
-				p->un.inner.last_ptr_id[prio] = cl->common.classid;
-				p->un.inner.ptr[prio] = NULL;
+				p->un.inner.clprio[prio].last_ptr_id = cl->common.classid;
+				p->un.inner.clprio[prio].ptr = NULL;
 			}
 
-			htb_safe_rb_erase(cl->node + prio, p->un.inner.feed + prio);
+			htb_safe_rb_erase(cl->node + prio,
+					  &p->un.inner.clprio[prio].feed);
 
-			if (!p->un.inner.feed[prio].rb_node)
+			if (!p->un.inner.clprio[prio].feed.rb_node)
 				mask |= 1 << prio;
 		}
 
@@ -652,7 +661,7 @@ static void htb_charge_class(struct htb_sched *q, struct htb_class *cl,
 		htb_change_class_mode(q, cl, &diff);
 		if (old_mode != cl->cmode) {
 			if (old_mode != HTB_CAN_SEND)
-				htb_safe_rb_erase(&cl->pq_node, q->wait_pq + cl->level);
+				htb_safe_rb_erase(&cl->pq_node, &q->hlevel[cl->level].wait_pq);
 			if (cl->cmode != HTB_CAN_SEND)
 				htb_add_to_wait_tree(q, cl, diff);
 		}
@@ -672,7 +681,7 @@ static void htb_charge_class(struct htb_sched *q, struct htb_class *cl,
  * next pending event (0 for no event in pq, q->now for too many events).
  * Note: Applied are events whose have cl->pq_key <= q->now.
  */
-static s64 htb_do_events(struct htb_sched *q, int level,
+static s64 htb_do_events(struct htb_sched *q, const int level,
 			 unsigned long start)
 {
 	/* don't run for longer than 2 jiffies; 2 is used instead of
@@ -680,10 +689,12 @@ static s64 htb_do_events(struct htb_sched *q, int level,
 	 * too soon
 	 */
 	unsigned long stop_at = start + 2;
+	struct rb_root *wait_pq = &q->hlevel[level].wait_pq;
+
 	while (time_before(jiffies, stop_at)) {
 		struct htb_class *cl;
 		s64 diff;
-		struct rb_node *p = rb_first(&q->wait_pq[level]);
+		struct rb_node *p = rb_first(wait_pq);
 
 		if (!p)
 			return 0;
@@ -692,7 +703,7 @@ static s64 htb_do_events(struct htb_sched *q, int level,
 		if (cl->pq_key > q->now)
 			return cl->pq_key;
 
-		htb_safe_rb_erase(p, q->wait_pq + level);
+		htb_safe_rb_erase(p, wait_pq);
 		diff = min_t(s64, q->now - cl->t_c, cl->mbuffer);
 		htb_change_class_mode(q, cl, &diff);
 		if (cl->cmode != HTB_CAN_SEND)
@@ -736,8 +747,7 @@ static struct rb_node *htb_id_find_next_upper(int prio, struct rb_node *n,
  *
  * Find leaf where current feed pointers points to.
  */
-static struct htb_class *htb_lookup_leaf(struct rb_root *tree, int prio,
-					 struct rb_node **pptr, u32 * pid)
+static struct htb_class *htb_lookup_leaf(struct htb_prio *hprio, const int prio)
 {
 	int i;
 	struct {
@@ -746,10 +756,10 @@ static struct htb_class *htb_lookup_leaf(struct rb_root *tree, int prio,
 		u32 *pid;
 	} stk[TC_HTB_MAXDEPTH], *sp = stk;
 
-	BUG_ON(!tree->rb_node);
-	sp->root = tree->rb_node;
-	sp->pptr = pptr;
-	sp->pid = pid;
+	BUG_ON(!hprio->row.rb_node);
+	sp->root = hprio->row.rb_node;
+	sp->pptr = &hprio->ptr;
+	sp->pid = &hprio->last_ptr_id;
 
 	for (i = 0; i < 65535; i++) {
 		if (!*sp->pptr && *sp->pid) {
@@ -776,12 +786,15 @@ static struct htb_class *htb_lookup_leaf(struct rb_root *tree, int prio,
 			}
 		} else {
 			struct htb_class *cl;
+			struct htb_prio *clp;
+
 			cl = rb_entry(*sp->pptr, struct htb_class, node[prio]);
 			if (!cl->level)
 				return cl;
-			(++sp)->root = cl->un.inner.feed[prio].rb_node;
-			sp->pptr = cl->un.inner.ptr + prio;
-			sp->pid = cl->un.inner.last_ptr_id + prio;
+			clp = &cl->un.inner.clprio[prio];
+			(++sp)->root = clp->feed.rb_node;
+			sp->pptr = &clp->ptr;
+			sp->pid = &clp->last_ptr_id;
 		}
 	}
 	WARN_ON(1);
@@ -791,15 +804,16 @@ static struct htb_class *htb_lookup_leaf(struct rb_root *tree, int prio,
 /* dequeues packet at given priority and level; call only if
  * you are sure that there is active class at prio/level
  */
-static struct sk_buff *htb_dequeue_tree(struct htb_sched *q, int prio,
-					int level)
+static struct sk_buff *htb_dequeue_tree(struct htb_sched *q, const int prio,
+					const int level)
 {
 	struct sk_buff *skb = NULL;
 	struct htb_class *cl, *start;
+	struct htb_level *hlevel = &q->hlevel[level];
+	struct htb_prio *hprio = &hlevel->hprio[prio];
+
 	/* look initial class up in the row */
-	start = cl = htb_lookup_leaf(q->row[level] + prio, prio,
-				     q->ptr[level] + prio,
-				     q->last_ptr_id[level] + prio);
+	start = cl = htb_lookup_leaf(hprio, prio);
 
 	do {
 next:
@@ -819,9 +833,7 @@ next:
 			if ((q->row_mask[level] & (1 << prio)) == 0)
 				return NULL;
 
-			next = htb_lookup_leaf(q->row[level] + prio,
-					       prio, q->ptr[level] + prio,
-					       q->last_ptr_id[level] + prio);
+			next = htb_lookup_leaf(hprio, prio);
 
 			if (cl == start)	/* fix start if we just deleted it */
 				start = next;
@@ -834,11 +846,9 @@ next:
 			break;
 
 		qdisc_warn_nonwc("htb", cl->un.leaf.q);
-		htb_next_rb_node((level ? cl->parent->un.inner.ptr : q->
-				  ptr[0]) + prio);
-		cl = htb_lookup_leaf(q->row[level] + prio, prio,
-				     q->ptr[level] + prio,
-				     q->last_ptr_id[level] + prio);
+		htb_next_rb_node(level ? &cl->parent->un.inner.clprio[prio].ptr:
+					 &q->hlevel[0].hprio[prio].ptr);
+		cl = htb_lookup_leaf(hprio, prio);
 
 	} while (cl != start);
 
@@ -847,8 +857,8 @@ next:
 		cl->un.leaf.deficit[level] -= qdisc_pkt_len(skb);
 		if (cl->un.leaf.deficit[level] < 0) {
 			cl->un.leaf.deficit[level] += cl->quantum;
-			htb_next_rb_node((level ? cl->parent->un.inner.ptr : q->
-					  ptr[0]) + prio);
+			htb_next_rb_node(level ? &cl->parent->un.inner.clprio[prio].ptr :
+						 &q->hlevel[0].hprio[prio].ptr);
 		}
 		/* this used to be after charge_class but this constelation
 		 * gives us slightly better performance
@@ -888,15 +898,14 @@ ok:
 	for (level = 0; level < TC_HTB_MAXDEPTH; level++) {
 		/* common case optimization - skip event handler quickly */
 		int m;
-		s64 event;
+		s64 event = q->near_ev_cache[level];
 
-		if (q->now >= q->near_ev_cache[level]) {
+		if (q->now >= event) {
 			event = htb_do_events(q, level, start_at);
 			if (!event)
 				event = q->now + NSEC_PER_SEC;
 			q->near_ev_cache[level] = event;
-		} else
-			event = q->near_ev_cache[level];
+		}
 
 		if (next_event > event)
 			next_event = event;
@@ -976,10 +985,8 @@ static void htb_reset(struct Qdisc *sch)
 	qdisc_watchdog_cancel(&q->watchdog);
 	__skb_queue_purge(&q->direct_queue);
 	sch->q.qlen = 0;
-	memset(q->row, 0, sizeof(q->row));
+	memset(q->hlevel, 0, sizeof(q->hlevel));
 	memset(q->row_mask, 0, sizeof(q->row_mask));
-	memset(q->wait_pq, 0, sizeof(q->wait_pq));
-	memset(q->ptr, 0, sizeof(q->ptr));
 	for (i = 0; i < TC_HTB_NUMPRIO; i++)
 		INIT_LIST_HEAD(q->drops + i);
 }
@@ -1200,7 +1207,8 @@ static void htb_parent_to_leaf(struct htb_sched *q, struct htb_class *cl,
 	WARN_ON(cl->level || !cl->un.leaf.q || cl->prio_activity);
 
 	if (parent->cmode != HTB_CAN_SEND)
-		htb_safe_rb_erase(&parent->pq_node, q->wait_pq + parent->level);
+		htb_safe_rb_erase(&parent->pq_node,
+				  &q->hlevel[parent->level].wait_pq);
 
 	parent->level = 0;
 	memset(&parent->un.inner, 0, sizeof(parent->un.inner));
@@ -1289,7 +1297,8 @@ static int htb_delete(struct Qdisc *sch, unsigned long arg)
 		htb_deactivate(q, cl);
 
 	if (cl->cmode != HTB_CAN_SEND)
-		htb_safe_rb_erase(&cl->pq_node, q->wait_pq + cl->level);
+		htb_safe_rb_erase(&cl->pq_node,
+				  &q->hlevel[cl->level].wait_pq);
 
 	if (last_child)
 		htb_parent_to_leaf(q, cl, new_q);
@@ -1411,7 +1420,7 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 
 			/* remove from evt list because of level change */
 			if (parent->cmode != HTB_CAN_SEND) {
-				htb_safe_rb_erase(&parent->pq_node, q->wait_pq);
+				htb_safe_rb_erase(&parent->pq_node, &q->hlevel[0].wait_pq);
 				parent->cmode = HTB_CAN_SEND;
 			}
 			parent->level = (parent->parent ? parent->parent->level
-- 
cgit v0.10.2


From af92e5425e4a7cfbc9b85dc268acfaadb551cc56 Mon Sep 17 00:00:00 2001
From: Rami Rosen <ramirose@gmail.com>
Date: Sat, 15 Jun 2013 23:04:56 +0300
Subject: inet: frag , remove an empty ifdef.

This patch removes an empty ifdef from inet_frag_intern()
in net/ipv4/inet_fragment.c.

commit b67bfe0d42cac56c512dd5da4b1b347a23f4b70a
(hlist: drop the node parameter from iterators) removed hlist from
net/ipv4/inet_fragment.c, but did not remove the enclosing ifdef command,
which is now empty.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 7e06641..4b86443 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -247,8 +247,6 @@ static struct inet_frag_queue *inet_frag_intern(struct netns_frags *nf,
 {
 	struct inet_frag_bucket *hb;
 	struct inet_frag_queue *qp;
-#ifdef CONFIG_SMP
-#endif
 	unsigned int hash;
 
 	read_lock(&f->lock); /* Protects against hash rebuild */
-- 
cgit v0.10.2


From 9e8cda3ba84e1b85ff11b5d31ac80a753e7f9547 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 13 Jun 2013 19:37:53 -0700
Subject: ipv6: Convert use of typedef ctl_table to struct ctl_table

This typedef is unnecessary and should just be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index ab47582..5fe5649 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -859,8 +859,8 @@ static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; }
 #endif
 
 #ifdef CONFIG_SYSCTL
-extern ctl_table ipv6_route_table_template[];
-extern ctl_table ipv6_icmp_table_template[];
+extern struct ctl_table ipv6_route_table_template[];
+extern struct ctl_table ipv6_icmp_table_template[];
 
 extern struct ctl_table *ipv6_icmp_sysctl_init(struct net *net);
 extern struct ctl_table *ipv6_route_sysctl_init(struct net *net);
-- 
cgit v0.10.2


From fedaf4ffc224a194e2d13a3ec2abe5df0bc94258 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 13 Jun 2013 19:37:54 -0700
Subject: ndisc: Convert use of typedef ctl_table to struct ctl_table

This typedef is unnecessary and should just be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 745bf74..949d775 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -230,7 +230,7 @@ extern int 			ndisc_ifinfo_sysctl_change(struct ctl_table *ctl,
 							   void __user *buffer,
 							   size_t *lenp,
 							   loff_t *ppos);
-int ndisc_ifinfo_sysctl_strategy(ctl_table *ctl,
+int ndisc_ifinfo_sysctl_strategy(struct ctl_table *ctl,
 				 void __user *oldval, size_t __user *oldlenp,
 				 void __user *newval, size_t newlen);
 #endif
-- 
cgit v0.10.2


From 130ffbc2638ddc290fcbabe1b9ce6a5d333a6a97 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 12 Jun 2013 17:54:51 +0200
Subject: netfilter: check return code from nla_parse_tested

These are the only calls under net/ that do not check nla_parse_nested()
for its error code, but simply continue execution. If parsing of netlink
attributes fails, we should return with an error instead of continuing.
In nearly all of these calls we have a policy attached, that is being
type verified during nla_parse_nested(), which we would miss checking
for otherwise.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 6d0f8a1..f83a522 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -828,7 +828,9 @@ ctnetlink_parse_tuple_ip(struct nlattr *attr, struct nf_conntrack_tuple *tuple)
 	struct nf_conntrack_l3proto *l3proto;
 	int ret = 0;
 
-	nla_parse_nested(tb, CTA_IP_MAX, attr, NULL);
+	ret = nla_parse_nested(tb, CTA_IP_MAX, attr, NULL);
+	if (ret < 0)
+		return ret;
 
 	rcu_read_lock();
 	l3proto = __nf_ct_l3proto_find(tuple->src.l3num);
@@ -895,7 +897,9 @@ ctnetlink_parse_tuple(const struct nlattr * const cda[],
 
 	memset(tuple, 0, sizeof(*tuple));
 
-	nla_parse_nested(tb, CTA_TUPLE_MAX, cda[type], tuple_nla_policy);
+	err = nla_parse_nested(tb, CTA_TUPLE_MAX, cda[type], tuple_nla_policy);
+	if (err < 0)
+		return err;
 
 	if (!tb[CTA_TUPLE_IP])
 		return -EINVAL;
@@ -946,9 +950,12 @@ static inline int
 ctnetlink_parse_help(const struct nlattr *attr, char **helper_name,
 		     struct nlattr **helpinfo)
 {
+	int err;
 	struct nlattr *tb[CTA_HELP_MAX+1];
 
-	nla_parse_nested(tb, CTA_HELP_MAX, attr, help_nla_policy);
+	err = nla_parse_nested(tb, CTA_HELP_MAX, attr, help_nla_policy);
+	if (err < 0)
+		return err;
 
 	if (!tb[CTA_HELP_NAME])
 		return -EINVAL;
@@ -1431,7 +1438,9 @@ ctnetlink_change_protoinfo(struct nf_conn *ct, const struct nlattr * const cda[]
 	struct nf_conntrack_l4proto *l4proto;
 	int err = 0;
 
-	nla_parse_nested(tb, CTA_PROTOINFO_MAX, attr, protoinfo_policy);
+	err = nla_parse_nested(tb, CTA_PROTOINFO_MAX, attr, protoinfo_policy);
+	if (err < 0)
+		return err;
 
 	rcu_read_lock();
 	l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
@@ -1452,9 +1461,12 @@ static const struct nla_policy nat_seq_policy[CTA_NAT_SEQ_MAX+1] = {
 static inline int
 change_nat_seq_adj(struct nf_nat_seq *natseq, const struct nlattr * const attr)
 {
+	int err;
 	struct nlattr *cda[CTA_NAT_SEQ_MAX+1];
 
-	nla_parse_nested(cda, CTA_NAT_SEQ_MAX, attr, nat_seq_policy);
+	err = nla_parse_nested(cda, CTA_NAT_SEQ_MAX, attr, nat_seq_policy);
+	if (err < 0)
+		return err;
 
 	if (!cda[CTA_NAT_SEQ_CORRECTION_POS])
 		return -EINVAL;
@@ -2115,7 +2127,9 @@ ctnetlink_nfqueue_parse(const struct nlattr *attr, struct nf_conn *ct)
 	struct nlattr *cda[CTA_MAX+1];
 	int ret;
 
-	nla_parse_nested(cda, CTA_MAX, attr, ct_nla_policy);
+	ret = nla_parse_nested(cda, CTA_MAX, attr, ct_nla_policy);
+	if (ret < 0)
+		return ret;
 
 	spin_lock_bh(&nf_conntrack_lock);
 	ret = ctnetlink_nfqueue_parse_ct((const struct nlattr **)cda, ct);
@@ -2710,7 +2724,9 @@ ctnetlink_parse_expect_nat(const struct nlattr *attr,
 	struct nf_conntrack_tuple nat_tuple = {};
 	int err;
 
-	nla_parse_nested(tb, CTA_EXPECT_NAT_MAX, attr, exp_nat_nla_policy);
+	err = nla_parse_nested(tb, CTA_EXPECT_NAT_MAX, attr, exp_nat_nla_policy);
+	if (err < 0)
+		return err;
 
 	if (!tb[CTA_EXPECT_NAT_DIR] || !tb[CTA_EXPECT_NAT_TUPLE])
 		return -EINVAL;
diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c
index a191b6d..9e287cb 100644
--- a/net/netfilter/nfnetlink_cthelper.c
+++ b/net/netfilter/nfnetlink_cthelper.c
@@ -67,9 +67,12 @@ static int
 nfnl_cthelper_parse_tuple(struct nf_conntrack_tuple *tuple,
 			  const struct nlattr *attr)
 {
+	int err;
 	struct nlattr *tb[NFCTH_TUPLE_MAX+1];
 
-	nla_parse_nested(tb, NFCTH_TUPLE_MAX, attr, nfnl_cthelper_tuple_pol);
+	err = nla_parse_nested(tb, NFCTH_TUPLE_MAX, attr, nfnl_cthelper_tuple_pol);
+	if (err < 0)
+		return err;
 
 	if (!tb[NFCTH_TUPLE_L3PROTONUM] || !tb[NFCTH_TUPLE_L4PROTONUM])
 		return -EINVAL;
@@ -121,9 +124,12 @@ static int
 nfnl_cthelper_expect_policy(struct nf_conntrack_expect_policy *expect_policy,
 			    const struct nlattr *attr)
 {
+	int err;
 	struct nlattr *tb[NFCTH_POLICY_MAX+1];
 
-	nla_parse_nested(tb, NFCTH_POLICY_MAX, attr, nfnl_cthelper_expect_pol);
+	err = nla_parse_nested(tb, NFCTH_POLICY_MAX, attr, nfnl_cthelper_expect_pol);
+	if (err < 0)
+		return err;
 
 	if (!tb[NFCTH_POLICY_NAME] ||
 	    !tb[NFCTH_POLICY_EXPECT_MAX] ||
@@ -153,8 +159,10 @@ nfnl_cthelper_parse_expect_policy(struct nf_conntrack_helper *helper,
 	struct nf_conntrack_expect_policy *expect_policy;
 	struct nlattr *tb[NFCTH_POLICY_SET_MAX+1];
 
-	nla_parse_nested(tb, NFCTH_POLICY_SET_MAX, attr,
-					nfnl_cthelper_expect_policy_set);
+	ret = nla_parse_nested(tb, NFCTH_POLICY_SET_MAX, attr,
+			       nfnl_cthelper_expect_policy_set);
+	if (ret < 0)
+		return ret;
 
 	if (!tb[NFCTH_POLICY_SET_NUM])
 		return -EINVAL;
diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c
index 65074df..5058049 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -59,8 +59,10 @@ ctnl_timeout_parse_policy(struct ctnl_timeout *timeout,
 	if (likely(l4proto->ctnl_timeout.nlattr_to_obj)) {
 		struct nlattr *tb[l4proto->ctnl_timeout.nlattr_max+1];
 
-		nla_parse_nested(tb, l4proto->ctnl_timeout.nlattr_max,
-				 attr, l4proto->ctnl_timeout.nla_policy);
+		ret = nla_parse_nested(tb, l4proto->ctnl_timeout.nlattr_max,
+				       attr, l4proto->ctnl_timeout.nla_policy);
+		if (ret < 0)
+			return ret;
 
 		ret = l4proto->ctnl_timeout.nlattr_to_obj(tb, net,
 							  &timeout->data);
-- 
cgit v0.10.2


From 6547a221871f139cc56328a38105d47c14874cbe Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Thu, 13 Jun 2013 17:31:28 +0200
Subject: netfilter: nf_conntrack: avoid large timeout for mid-stream pickup

When loose tracking is enabled (default), non-syn packets cause
creation of new conntracks in established state with default timeout for
established state (5 days).  This causes the table to fill up with UNREPLIED
when the 'new ack' packet happened to be the last-ack of a previous,
already timed-out connection.

Consider:

A 192.168.x.52792 > 10.184.y.80: F, 426:426(0) ack 9237 win 255
B 10.184.y.80 > 192.168.x.52792: ., ack 427 win 123
<61 second pause>
C 10.184.y.80 > 192.168.x.52792: F, 9237:9237(0) ack 427 win 123
D 192.168.x.52792 > 10.184.y.80: ., ack 9238 win 255

B moves conntrack to CLOSE_WAIT and will kill it after 60 second timeout,
C is ignored (FIN set), but last packet (D) causes new ct with 5-days timeout.

Use UNACK timeout (5 minutes) instead to get rid of these entries sooner
when in ESTABLISHED state without having seen traffic in both directions.

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 4d4d8f1..7dcc376 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -1043,6 +1043,12 @@ static int tcp_packet(struct nf_conn *ct,
 			nf_ct_kill_acct(ct, ctinfo, skb);
 			return NF_ACCEPT;
 		}
+		/* ESTABLISHED without SEEN_REPLY, i.e. mid-connection
+		 * pickup with loose=1. Avoid large ESTABLISHED timeout.
+		 */
+		if (new_state == TCP_CONNTRACK_ESTABLISHED &&
+		    timeout > timeouts[TCP_CONNTRACK_UNACK])
+			timeout = timeouts[TCP_CONNTRACK_UNACK];
 	} else if (!test_bit(IPS_ASSURED_BIT, &ct->status)
 		   && (old_state == TCP_CONNTRACK_SYN_RECV
 		       || old_state == TCP_CONNTRACK_ESTABLISHED)
-- 
cgit v0.10.2


From 681f130f39e10087475383e6771b9366e26bab0c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 20 Jun 2013 05:52:22 -0700
Subject: netfilter: xt_socket: add XT_SOCKET_NOWILDCARD flag

xt_socket module can be a nice replacement to conntrack module
in some cases (SYN filtering for example)

But it lacks the ability to match the 3rd packet of TCP
handshake (ACK coming from the client).

Add a XT_SOCKET_NOWILDCARD flag to disable the wildcard mechanism.

The wildcard is the legacy socket match behavior, that ignores
LISTEN sockets bound to INADDR_ANY (or ipv6 equivalent)

iptables -I INPUT -p tcp --syn -j SYN_CHAIN
iptables -I INPUT -m socket --nowildcard -j ACCEPT

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/include/uapi/linux/netfilter/xt_socket.h b/include/uapi/linux/netfilter/xt_socket.h
index 26d7217..6315e2a 100644
--- a/include/uapi/linux/netfilter/xt_socket.h
+++ b/include/uapi/linux/netfilter/xt_socket.h
@@ -5,10 +5,17 @@
 
 enum {
 	XT_SOCKET_TRANSPARENT = 1 << 0,
+	XT_SOCKET_NOWILDCARD = 1 << 1,
 };
 
 struct xt_socket_mtinfo1 {
 	__u8 flags;
 };
+#define XT_SOCKET_FLAGS_V1 XT_SOCKET_TRANSPARENT
+
+struct xt_socket_mtinfo2 {
+	__u8 flags;
+};
+#define XT_SOCKET_FLAGS_V2 (XT_SOCKET_TRANSPARENT | XT_SOCKET_NOWILDCARD)
 
 #endif /* _XT_SOCKET_H */
diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 0270424..f8b7191 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -163,8 +163,11 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par,
 		bool wildcard;
 		bool transparent = true;
 
-		/* Ignore sockets listening on INADDR_ANY */
-		wildcard = (sk->sk_state != TCP_TIME_WAIT &&
+		/* Ignore sockets listening on INADDR_ANY,
+		 * unless XT_SOCKET_NOWILDCARD is set
+		 */
+		wildcard = (!(info->flags & XT_SOCKET_NOWILDCARD) &&
+			    sk->sk_state != TCP_TIME_WAIT &&
 			    inet_sk(sk)->inet_rcv_saddr == 0);
 
 		/* Ignore non-transparent sockets,
@@ -197,7 +200,7 @@ socket_mt4_v0(const struct sk_buff *skb, struct xt_action_param *par)
 }
 
 static bool
-socket_mt4_v1(const struct sk_buff *skb, struct xt_action_param *par)
+socket_mt4_v1_v2(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	return socket_match(skb, par, par->matchinfo);
 }
@@ -259,7 +262,7 @@ extract_icmp6_fields(const struct sk_buff *skb,
 }
 
 static bool
-socket_mt6_v1(const struct sk_buff *skb, struct xt_action_param *par)
+socket_mt6_v1_v2(const struct sk_buff *skb, struct xt_action_param *par)
 {
 	struct ipv6hdr *iph = ipv6_hdr(skb);
 	struct udphdr _hdr, *hp = NULL;
@@ -302,8 +305,11 @@ socket_mt6_v1(const struct sk_buff *skb, struct xt_action_param *par)
 		bool wildcard;
 		bool transparent = true;
 
-		/* Ignore sockets listening on INADDR_ANY */
-		wildcard = (sk->sk_state != TCP_TIME_WAIT &&
+		/* Ignore sockets listening on INADDR_ANY
+		 * unless XT_SOCKET_NOWILDCARD is set
+		 */
+		wildcard = (!(info->flags & XT_SOCKET_NOWILDCARD) &&
+			    sk->sk_state != TCP_TIME_WAIT &&
 			    ipv6_addr_any(&inet6_sk(sk)->rcv_saddr));
 
 		/* Ignore non-transparent sockets,
@@ -331,6 +337,28 @@ socket_mt6_v1(const struct sk_buff *skb, struct xt_action_param *par)
 }
 #endif
 
+static int socket_mt_v1_check(const struct xt_mtchk_param *par)
+{
+	const struct xt_socket_mtinfo1 *info = (struct xt_socket_mtinfo1 *) par->matchinfo;
+
+	if (info->flags & ~XT_SOCKET_FLAGS_V1) {
+		pr_info("unknown flags 0x%x\n", info->flags & ~XT_SOCKET_FLAGS_V1);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int socket_mt_v2_check(const struct xt_mtchk_param *par)
+{
+	const struct xt_socket_mtinfo2 *info = (struct xt_socket_mtinfo2 *) par->matchinfo;
+
+	if (info->flags & ~XT_SOCKET_FLAGS_V2) {
+		pr_info("unknown flags 0x%x\n", info->flags & ~XT_SOCKET_FLAGS_V2);
+		return -EINVAL;
+	}
+	return 0;
+}
+
 static struct xt_match socket_mt_reg[] __read_mostly = {
 	{
 		.name		= "socket",
@@ -345,7 +373,8 @@ static struct xt_match socket_mt_reg[] __read_mostly = {
 		.name		= "socket",
 		.revision	= 1,
 		.family		= NFPROTO_IPV4,
-		.match		= socket_mt4_v1,
+		.match		= socket_mt4_v1_v2,
+		.checkentry	= socket_mt_v1_check,
 		.matchsize	= sizeof(struct xt_socket_mtinfo1),
 		.hooks		= (1 << NF_INET_PRE_ROUTING) |
 				  (1 << NF_INET_LOCAL_IN),
@@ -356,7 +385,32 @@ static struct xt_match socket_mt_reg[] __read_mostly = {
 		.name		= "socket",
 		.revision	= 1,
 		.family		= NFPROTO_IPV6,
-		.match		= socket_mt6_v1,
+		.match		= socket_mt6_v1_v2,
+		.checkentry	= socket_mt_v1_check,
+		.matchsize	= sizeof(struct xt_socket_mtinfo1),
+		.hooks		= (1 << NF_INET_PRE_ROUTING) |
+				  (1 << NF_INET_LOCAL_IN),
+		.me		= THIS_MODULE,
+	},
+#endif
+	{
+		.name		= "socket",
+		.revision	= 2,
+		.family		= NFPROTO_IPV4,
+		.match		= socket_mt4_v1_v2,
+		.checkentry	= socket_mt_v2_check,
+		.matchsize	= sizeof(struct xt_socket_mtinfo1),
+		.hooks		= (1 << NF_INET_PRE_ROUTING) |
+				  (1 << NF_INET_LOCAL_IN),
+		.me		= THIS_MODULE,
+	},
+#ifdef XT_SOCKET_HAVE_IPV6
+	{
+		.name		= "socket",
+		.revision	= 2,
+		.family		= NFPROTO_IPV6,
+		.match		= socket_mt6_v1_v2,
+		.checkentry	= socket_mt_v2_check,
 		.matchsize	= sizeof(struct xt_socket_mtinfo1),
 		.hooks		= (1 << NF_INET_PRE_ROUTING) |
 				  (1 << NF_INET_LOCAL_IN),
-- 
cgit v0.10.2


From c5623556fc61804713b1569b4f748e36956bc6e8 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:33 +0300
Subject: Bluetooth: Handle LE L2CAP signalling in its own function

The LE L2CAP signalling channel follows its own rules and will continue
to evolve independently from the BR/EDR signalling channel. Therefore,
it makes sense to have a clear split from BR/EDR by having a dedicated
function for handling LE signalling commands.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 4be6a26..ab99611 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5292,6 +5292,51 @@ static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
 	}
 }
 
+static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
+					struct sk_buff *skb)
+{
+	u8 *data = skb->data;
+	int len = skb->len;
+	struct l2cap_cmd_hdr cmd;
+	int err;
+
+	l2cap_raw_recv(conn, skb);
+
+	while (len >= L2CAP_CMD_HDR_SIZE) {
+		u16 cmd_len;
+		memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE);
+		data += L2CAP_CMD_HDR_SIZE;
+		len  -= L2CAP_CMD_HDR_SIZE;
+
+		cmd_len = le16_to_cpu(cmd.len);
+
+		BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd.code, cmd_len,
+		       cmd.ident);
+
+		if (cmd_len > len || !cmd.ident) {
+			BT_DBG("corrupted command");
+			break;
+		}
+
+		err = l2cap_le_sig_cmd(conn, &cmd, data);
+		if (err) {
+			struct l2cap_cmd_rej_unk rej;
+
+			BT_ERR("Wrong link type (%d)", err);
+
+			/* FIXME: Map err to a valid reason */
+			rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
+			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ,
+				       sizeof(rej), &rej);
+		}
+
+		data += cmd_len;
+		len  -= cmd_len;
+	}
+
+	kfree_skb(skb);
+}
+
 static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 				     struct sk_buff *skb)
 {
@@ -5318,11 +5363,7 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 			break;
 		}
 
-		if (conn->hcon->type == LE_LINK)
-			err = l2cap_le_sig_cmd(conn, &cmd, data);
-		else
-			err = l2cap_bredr_sig_cmd(conn, &cmd, cmd_len, data);
-
+		err = l2cap_bredr_sig_cmd(conn, &cmd, cmd_len, data);
 		if (err) {
 			struct l2cap_cmd_rej_unk rej;
 
@@ -6395,6 +6436,8 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
 
 	switch (cid) {
 	case L2CAP_CID_LE_SIGNALING:
+		l2cap_le_sig_channel(conn, skb);
+		break;
 	case L2CAP_CID_SIGNALING:
 		l2cap_sig_channel(conn, skb);
 		break;
-- 
cgit v0.10.2


From 073d1cf35fe45d89f5a553c21eea18b504dd6937 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:35 +0300
Subject: Bluetooth: Rename L2CAP_CID_LE_DATA to L2CAP_CID_ATT

In future Core Specification versions the ATT CID will be just one of
many possible CIDs that can be used for data transfer. Therefore, it
makes sense to rename the define for the ATT CID to something less
ambigous.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index fb94cf1..1a966af 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -242,7 +242,7 @@ struct l2cap_conn_rsp {
 #define L2CAP_CID_SIGNALING	0x0001
 #define L2CAP_CID_CONN_LESS	0x0002
 #define L2CAP_CID_A2MP		0x0003
-#define L2CAP_CID_LE_DATA	0x0004
+#define L2CAP_CID_ATT		0x0004
 #define L2CAP_CID_LE_SIGNALING	0x0005
 #define L2CAP_CID_SMP		0x0006
 #define L2CAP_CID_DYN_START	0x0040
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index ab99611..c87f8f9 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -504,8 +504,8 @@ void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 		if (conn->hcon->type == LE_LINK) {
 			/* LE connection */
 			chan->omtu = L2CAP_DEFAULT_MTU;
-			chan->scid = L2CAP_CID_LE_DATA;
-			chan->dcid = L2CAP_CID_LE_DATA;
+			chan->scid = L2CAP_CID_ATT;
+			chan->dcid = L2CAP_CID_ATT;
 		} else {
 			/* Alloc CID for connection-oriented socket */
 			chan->scid = l2cap_alloc_cid(conn);
@@ -1344,7 +1344,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 	BT_DBG("");
 
 	/* Check if we have socket listening on cid */
-	pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_LE_DATA,
+	pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_ATT,
 					  conn->src, conn->dst);
 	if (!pchan)
 		return;
@@ -1792,7 +1792,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 
 	auth_type = l2cap_get_auth_type(chan);
 
-	if (chan->dcid == L2CAP_CID_LE_DATA)
+	if (chan->dcid == L2CAP_CID_ATT)
 		hcon = hci_connect(hdev, LE_LINK, dst, dst_type,
 				   chan->sec_level, auth_type);
 	else
@@ -6397,7 +6397,7 @@ static void l2cap_att_channel(struct l2cap_conn *conn,
 {
 	struct l2cap_chan *chan;
 
-	chan = l2cap_global_chan_by_scid(0, L2CAP_CID_LE_DATA,
+	chan = l2cap_global_chan_by_scid(0, L2CAP_CID_ATT,
 					 conn->src, conn->dst);
 	if (!chan)
 		goto drop;
@@ -6448,7 +6448,7 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
 		l2cap_conless_channel(conn, psm, skb);
 		break;
 
-	case L2CAP_CID_LE_DATA:
+	case L2CAP_CID_ATT:
 		l2cap_att_channel(conn, skb);
 		break;
 
@@ -6574,7 +6574,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 			continue;
 		}
 
-		if (chan->scid == L2CAP_CID_LE_DATA) {
+		if (chan->scid == L2CAP_CID_ATT) {
 			if (!status && encrypt) {
 				chan->sec_level = hcon->sec_level;
 				l2cap_chan_ready(chan);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 36fed40..0098af8 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -466,7 +466,7 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname,
 static bool l2cap_valid_mtu(struct l2cap_chan *chan, u16 mtu)
 {
 	switch (chan->scid) {
-	case L2CAP_CID_LE_DATA:
+	case L2CAP_CID_ATT:
 		if (mtu < L2CAP_LE_MIN_MTU)
 			return false;
 		break;
@@ -630,7 +630,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 		conn = chan->conn;
 
 		/*change security for LE channels */
-		if (chan->scid == L2CAP_CID_LE_DATA) {
+		if (chan->scid == L2CAP_CID_ATT) {
 			if (!conn->hcon->out) {
 				err = -EINVAL;
 				break;
-- 
cgit v0.10.2


From f224ca5fc207a9957164e6f42ec6766da0f55d54 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:36 +0300
Subject: Bluetooth: Fix LE vs BR/EDR selection when connecting

The choice between LE and BR/EDR should be made on the destination
address type instead of the destination CID. This is particularly
important when in the future more than one CID will be allowed for LE.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c87f8f9..2939829 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1792,7 +1792,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 
 	auth_type = l2cap_get_auth_type(chan);
 
-	if (chan->dcid == L2CAP_CID_ATT)
+	if (bdaddr_type_is_le(dst_type))
 		hcon = hci_connect(hdev, LE_LINK, dst, dst_type,
 				   chan->sec_level, auth_type);
 	else
-- 
cgit v0.10.2


From 141d57065afd11977c4d346f64b25350445bf689 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:37 +0300
Subject: Bluetooth: Fix EBUSY condition test in l2cap_chan_connect

The current test in l2cap_chan_connect is intended to protect against
multiple conflicting connect attempts. However, it assumes that there
will ever only be a single CID that is connected to, which is not true.
We do need to check for conflicts with connect attempts to the same
destination CID but this check is not in anyway specific to LE but can
be applied to BR/EDR as well.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 2939829..640423b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1811,16 +1811,10 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 		goto done;
 	}
 
-	if (hcon->type == LE_LINK) {
-		err = 0;
-
-		if (!list_empty(&conn->chan_l)) {
-			err = -EBUSY;
-			hci_conn_drop(hcon);
-		}
-
-		if (err)
-			goto done;
+	if (cid && __l2cap_get_chan_by_dcid(conn, cid)) {
+		hci_conn_drop(hcon);
+		err = -EBUSY;
+		goto done;
 	}
 
 	/* Update source addr of the socket */
-- 
cgit v0.10.2


From 9f22398ce4baf816535415e65949d03f55a7973a Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:38 +0300
Subject: Bluetooth: Fix hardcoding ATT CID in __l2cap_chan_add()

Since in the future more than the ATT CID may be permissible we should
not be hardcoding it for all LE connections in __l2cap_chan_add().
Instead, the source ATT CID should only be set if the destination is
also ATT, and in other cases we should just use the existing dynamic CID
allocation function.

Assigning scid based on dcid means that whenever __l2cap_chan_add() is
called that chan->dcid is properly initialized. l2cap_le_conn_ready()
wasn't initializing is properly so this is also taken care of in this
patch.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 640423b..4803610 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -504,8 +504,10 @@ void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 		if (conn->hcon->type == LE_LINK) {
 			/* LE connection */
 			chan->omtu = L2CAP_DEFAULT_MTU;
-			chan->scid = L2CAP_CID_ATT;
-			chan->dcid = L2CAP_CID_ATT;
+			if (chan->dcid == L2CAP_CID_ATT)
+				chan->scid = L2CAP_CID_ATT;
+			else
+				chan->scid = l2cap_alloc_cid(conn);
 		} else {
 			/* Alloc CID for connection-oriented socket */
 			chan->scid = l2cap_alloc_cid(conn);
@@ -1357,6 +1359,8 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 	if (!chan)
 		goto clean;
 
+	chan->dcid = L2CAP_CID_ATT;
+
 	sk = chan->sk;
 
 	hci_conn_hold(conn->hcon);
-- 
cgit v0.10.2


From d8729922b474eab65ca738028a2e69fb12e2eaa6 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:39 +0300
Subject: Bluetooth: Add clarifying comment to l2cap_conn_ready()

There is an extra call to smp_conn_security() for outgoing LE
connections from l2cap_conn_ready() but the reason for this call is far
from clear. After a bit of commit history research and using git blame I
found out that this extra call is for socket-less pairing processes
added by commit 160dc6ac1. This patch adds a clarifying comment to the
code for this.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 4803610..417d177 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1387,6 +1387,9 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
 	if (!hcon->out && hcon->type == LE_LINK)
 		l2cap_le_conn_ready(conn);
 
+	/* For outgoing pairing which doesn't necessarily have an
+	 * associated socket (e.g. mgmt_pair_device).
+	 */
 	if (hcon->out && hcon->type == LE_LINK)
 		smp_conn_security(hcon, hcon->pending_sec_level);
 
-- 
cgit v0.10.2


From 97f57c0b14ad2ef0628fc6db48cd6c08e0e52c50 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:40 +0300
Subject: Bluetooth: Fix duplicate call to l2cap_chan_ready()

In l2cap_le_conn_ready() after doing l2cap_chann_add() the LE channel is
part of the list which is subsequently iterated in l2cap_conn_ready() in
this loop each channel will get l2cap_chan_ready() called which would
result in trying to set the channel two times into BT_CONNECTED state.
Instead it makes sense to just add the channel but not call chan_ready
in l2cap_le_conn_ready, which is what this patch does.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 417d177..843463e 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1371,8 +1371,6 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	l2cap_chan_add(conn, chan);
 
-	l2cap_chan_ready(chan);
-
 clean:
 	release_sock(parent);
 }
-- 
cgit v0.10.2


From 60bac184c9c7df2299aca4dc45c4b5b486f49a89 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:41 +0300
Subject: Bluetooth: Remove useless sk variable in l2cap_le_conn_ready

The sk variable is of quite little use since it's only used to simplify
access in the two bt_sk() calls.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 843463e..1557c3c 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1340,7 +1340,7 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid,
 
 static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 {
-	struct sock *parent, *sk;
+	struct sock *parent;
 	struct l2cap_chan *chan, *pchan;
 
 	BT_DBG("");
@@ -1361,13 +1361,11 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	chan->dcid = L2CAP_CID_ATT;
 
-	sk = chan->sk;
-
 	hci_conn_hold(conn->hcon);
 	conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
 
-	bacpy(&bt_sk(sk)->src, conn->src);
-	bacpy(&bt_sk(sk)->dst, conn->dst);
+	bacpy(&bt_sk(chan->sk)->src, conn->src);
+	bacpy(&bt_sk(chan->sk)->dst, conn->dst);
 
 	l2cap_chan_add(conn, chan);
 
-- 
cgit v0.10.2


From af1c01349ecc2b8ab2c329e4dbd46e9018469bd1 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:42 +0300
Subject: Bluetooth: Remove unnecessary L2CAP channel state check

In l2cap_att_channel() we're only interested in the BT_CONNECTED state
so this state can directly be passed to l2cap_global_chan_by_scid().
This way there's no need to do any additional state check later.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 1557c3c..55c6836 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6394,16 +6394,13 @@ static void l2cap_att_channel(struct l2cap_conn *conn,
 {
 	struct l2cap_chan *chan;
 
-	chan = l2cap_global_chan_by_scid(0, L2CAP_CID_ATT,
+	chan = l2cap_global_chan_by_scid(BT_CONNECTED, L2CAP_CID_ATT,
 					 conn->src, conn->dst);
 	if (!chan)
 		goto drop;
 
 	BT_DBG("chan %p, len %d", chan, skb->len);
 
-	if (chan->state != BT_BOUND && chan->state != BT_CONNECTED)
-		goto drop;
-
 	if (chan->imtu < skb->len)
 		goto drop;
 
-- 
cgit v0.10.2


From 5ee9891dd8a63df1bf2ccd437872ad30a5850449 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:43 +0300
Subject: Bluetooth: Simplify hci_conn_hold/drop logic for L2CAP

The L2CAP code has been incrementing the hci_conn reference for each
l2cap_chan instance in the l2cap_conn list. Likewise, the reference is
dropped each time an l2cap_chan is removed from the list. The reference
counting policy with respect to removal has been clear and explicit in
the l2cap_chan_del function, however for addition the function
calling 2cap_chan_add has always had to do a separate hci_conn_hold
call.

What made the counting even more hard to follow is that the
hci_connect() procedure increments the reference and the L2CAP layer
making this call took advantage of it to use it as its own reference.

This patch aims to clarify things by having the call to hci_conn_hold
inside __l2cap_chan_add, thereby removing the need to do it in the
functions calling __l2cap_chan_add. The reference count for hci_connect
is still kept as it's necessary for users such as mgmt_pair_device,
however for the L2CAP layer it means that an extra call to hci_conn_drop
must be performed once l2cap_chan_add has been done.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 55c6836..d7b501b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -545,6 +545,8 @@ void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
 
 	l2cap_chan_hold(chan);
 
+	hci_conn_hold(conn->hcon);
+
 	list_add(&chan->list, &conn->chan_l);
 }
 
@@ -1361,7 +1363,6 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	chan->dcid = L2CAP_CID_ATT;
 
-	hci_conn_hold(conn->hcon);
 	conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
 
 	bacpy(&bt_sk(chan->sk)->src, conn->src);
@@ -1827,6 +1828,9 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	l2cap_chan_add(conn, chan);
 	l2cap_chan_lock(chan);
 
+	/* l2cap_chan_add takes its own ref so we can drop this one */
+	hci_conn_drop(hcon);
+
 	l2cap_state_change(chan, BT_CONNECT);
 	__set_chan_timer(chan, sk->sk_sndtimeo);
 
@@ -3748,8 +3752,6 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 
 	sk = chan->sk;
 
-	hci_conn_hold(conn->hcon);
-
 	bacpy(&bt_sk(sk)->src, conn->src);
 	bacpy(&bt_sk(sk)->dst, conn->dst);
 	chan->psm  = psm;
-- 
cgit v0.10.2


From 0cc59a72c723979cf8973aff4df874a5f7a697c7 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:44 +0300
Subject: Bluetooth: Remove useless hci_conn disc_timeout setting

There's no need to reset disc_timeout in l2cap_le_conn_ready since
HCI_DISCONN_TIMEOUT is the default when the hci_conn is created and
there should be no way for it to get changed between creation and
l2cap_le_conn_ready being called.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index d7b501b..8ae6a21 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1363,8 +1363,6 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	chan->dcid = L2CAP_CID_ATT;
 
-	conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
-
 	bacpy(&bt_sk(chan->sk)->src, conn->src);
 	bacpy(&bt_sk(chan->sk)->dst, conn->dst);
 
-- 
cgit v0.10.2


From 44f3b0fbaa9bfa7a88577ee8c446d0a78cb1d73a Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 29 Apr 2013 19:35:45 +0300
Subject: Bluetooth: Fix multiple LE socket handling

The LE ATT server socket needs to be superseded by any ATT client
sockets. Previously this was done by looking at the hcon->out variable
(indicating whether the connection is outgoing or incoming) which is a
too crude way of determining whether the server socket needs to be
picked or not (an outgoing connection doesn't necessarily mean that an
ATT client socket has triggered it).

This patch extends the ATT server socket lookup function
(l2cap_le_conn_ready) to be used for all LE connections (regardless of
the hcon->out value) and adds an internal check into the function for
the existence of any ATT client sockets (in which case the server socket
should be skipped). For this to work reliably all lookups must be done
while the l2cap_conn->chan_lock is held, meaning also that the call to
l2cap_chan_add needs to be changed to its lockless __l2cap_chan_add
counterpart.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 8ae6a21..9af3a76 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1353,6 +1353,10 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 	if (!pchan)
 		return;
 
+	/* Client ATT sockets should override the server one */
+	if (__l2cap_get_chan_by_dcid(conn, L2CAP_CID_ATT))
+		return;
+
 	parent = pchan->sk;
 
 	lock_sock(parent);
@@ -1366,7 +1370,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 	bacpy(&bt_sk(chan->sk)->src, conn->src);
 	bacpy(&bt_sk(chan->sk)->dst, conn->dst);
 
-	l2cap_chan_add(conn, chan);
+	__l2cap_chan_add(conn, chan);
 
 clean:
 	release_sock(parent);
@@ -1379,9 +1383,6 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
 
 	BT_DBG("conn %p", conn);
 
-	if (!hcon->out && hcon->type == LE_LINK)
-		l2cap_le_conn_ready(conn);
-
 	/* For outgoing pairing which doesn't necessarily have an
 	 * associated socket (e.g. mgmt_pair_device).
 	 */
@@ -1390,6 +1391,9 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
 
 	mutex_lock(&conn->chan_lock);
 
+	if (hcon->type == LE_LINK)
+		l2cap_le_conn_ready(conn);
+
 	list_for_each_entry(chan, &conn->chan_l, list) {
 
 		l2cap_chan_lock(chan);
-- 
cgit v0.10.2


From 1f9b9a5dc5bb8ee360db9d32b2090aac497ae82a Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:27 -0300
Subject: Bluetooth: Make inquiry_cache_flush non-static

In order to use HCI request framework in start_discovery, we'll need
to call inquiry_cache_flush in mgmt.c. Therefore, this patch adds the
hci_ prefix to inquiry_cache_flush and makes it non-static.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 7cb6d36..7c150e4 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -432,6 +432,7 @@ void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 				      struct inquiry_entry *ie);
 bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 			      bool name_known, bool *ssp);
+void hci_inquiry_cache_flush(struct hci_dev *hdev);
 
 /* ----- HCI Connections ----- */
 enum {
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index ace5e55..43c6387 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -751,7 +751,7 @@ void hci_discovery_set_state(struct hci_dev *hdev, int state)
 	hdev->discovery.state = state;
 }
 
-static void inquiry_cache_flush(struct hci_dev *hdev)
+void hci_inquiry_cache_flush(struct hci_dev *hdev)
 {
 	struct discovery_state *cache = &hdev->discovery;
 	struct inquiry_entry *p, *n;
@@ -964,7 +964,7 @@ int hci_inquiry(void __user *arg)
 	hci_dev_lock(hdev);
 	if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
 	    inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) {
-		inquiry_cache_flush(hdev);
+		hci_inquiry_cache_flush(hdev);
 		do_inquiry = 1;
 	}
 	hci_dev_unlock(hdev);
@@ -1230,7 +1230,7 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	cancel_delayed_work_sync(&hdev->le_scan_disable);
 
 	hci_dev_lock(hdev);
-	inquiry_cache_flush(hdev);
+	hci_inquiry_cache_flush(hdev);
 	hci_conn_hash_flush(hdev);
 	hci_dev_unlock(hdev);
 
@@ -1331,7 +1331,7 @@ int hci_dev_reset(__u16 dev)
 	skb_queue_purge(&hdev->cmd_q);
 
 	hci_dev_lock(hdev);
-	inquiry_cache_flush(hdev);
+	hci_inquiry_cache_flush(hdev);
 	hci_conn_hash_flush(hdev);
 	hci_dev_unlock(hdev);
 
@@ -3562,7 +3562,7 @@ int hci_do_inquiry(struct hci_dev *hdev, u8 length)
 	if (test_bit(HCI_INQUIRY, &hdev->flags))
 		return -EINPROGRESS;
 
-	inquiry_cache_flush(hdev);
+	hci_inquiry_cache_flush(hdev);
 
 	memset(&cp, 0, sizeof(cp));
 	memcpy(&cp.lap, lap, sizeof(cp.lap));
-- 
cgit v0.10.2


From 7c3077207c705d0aa200ce22d49a0376d194dfca Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:28 -0300
Subject: Bluetooth: Update start_discovery to use HCI request

This patch modifies the start_discovery function so it uses the HCI
request framework.

We build the HCI request according to the discovery type (add inquiry
or LE scan HCI commands) and run the HCI request. We also register
the start_discovery_complete callback which handles mgmt command
complete events for this command. This way, we move all start_
discovery mgmt handling code spread in hci_event.c to a single place
in mgmt.c.

This patch also merges the LE-only and interleaved discovery type
cases since these cases are pretty much the same now.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index f8ecbc7..434df71 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2650,11 +2650,51 @@ int mgmt_interleaved_discovery(struct hci_dev *hdev)
 	return err;
 }
 
+static void start_discovery_complete(struct hci_dev *hdev, u8 status)
+{
+	BT_DBG("status %d", status);
+
+	if (status) {
+		hci_dev_lock(hdev);
+		mgmt_start_discovery_failed(hdev, status);
+		hci_dev_unlock(hdev);
+		return;
+	}
+
+	hci_dev_lock(hdev);
+	hci_discovery_set_state(hdev, DISCOVERY_FINDING);
+	hci_dev_unlock(hdev);
+
+	switch (hdev->discovery.type) {
+	case DISCOV_TYPE_LE:
+		queue_delayed_work(hdev->workqueue, &hdev->le_scan_disable,
+				   LE_SCAN_TIMEOUT_LE_ONLY);
+		break;
+
+	case DISCOV_TYPE_INTERLEAVED:
+		queue_delayed_work(hdev->workqueue, &hdev->le_scan_disable,
+				   LE_SCAN_TIMEOUT_BREDR_LE);
+		break;
+
+	case DISCOV_TYPE_BREDR:
+		break;
+
+	default:
+		BT_ERR("Invalid discovery type %d", hdev->discovery.type);
+	}
+}
+
 static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 			   void *data, u16 len)
 {
 	struct mgmt_cp_start_discovery *cp = data;
 	struct pending_cmd *cmd;
+	struct hci_cp_le_set_scan_param param_cp;
+	struct hci_cp_le_set_scan_enable enable_cp;
+	struct hci_cp_inquiry inq_cp;
+	struct hci_request req;
+	/* General inquiry access code (GIAC) */
+	u8 lap[3] = { 0x33, 0x8b, 0x9e };
 	int err;
 
 	BT_DBG("%s", hdev->name);
@@ -2687,6 +2727,8 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 
 	hdev->discovery.type = cp->type;
 
+	hci_req_init(&req, hdev);
+
 	switch (hdev->discovery.type) {
 	case DISCOV_TYPE_BREDR:
 		if (!lmp_bredr_capable(hdev)) {
@@ -2696,10 +2738,23 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 			goto failed;
 		}
 
-		err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR);
+		if (test_bit(HCI_INQUIRY, &hdev->flags)) {
+			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
+					 MGMT_STATUS_BUSY);
+			mgmt_pending_remove(cmd);
+			goto failed;
+		}
+
+		hci_inquiry_cache_flush(hdev);
+
+		memset(&inq_cp, 0, sizeof(inq_cp));
+		memcpy(&inq_cp.lap, lap, sizeof(inq_cp.lap));
+		inq_cp.length = INQUIRY_LEN_BREDR;
+		hci_req_add(&req, HCI_OP_INQUIRY, sizeof(inq_cp), &inq_cp);
 		break;
 
 	case DISCOV_TYPE_LE:
+	case DISCOV_TYPE_INTERLEAVED:
 		if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
 			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
 					 MGMT_STATUS_NOT_SUPPORTED);
@@ -2707,20 +2762,40 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 			goto failed;
 		}
 
-		err = hci_le_scan(hdev, LE_SCAN_ACTIVE, LE_SCAN_INT,
-				  LE_SCAN_WIN, LE_SCAN_TIMEOUT_LE_ONLY);
-		break;
-
-	case DISCOV_TYPE_INTERLEAVED:
-		if (!lmp_host_le_capable(hdev) || !lmp_bredr_capable(hdev)) {
+		if (hdev->discovery.type == DISCOV_TYPE_INTERLEAVED &&
+		    !lmp_bredr_capable(hdev)) {
 			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
 					 MGMT_STATUS_NOT_SUPPORTED);
 			mgmt_pending_remove(cmd);
 			goto failed;
 		}
 
-		err = hci_le_scan(hdev, LE_SCAN_ACTIVE, LE_SCAN_INT,
-				  LE_SCAN_WIN, LE_SCAN_TIMEOUT_BREDR_LE);
+		if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
+					 MGMT_STATUS_REJECTED);
+			mgmt_pending_remove(cmd);
+			goto failed;
+		}
+
+		if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) {
+			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
+					 MGMT_STATUS_BUSY);
+			mgmt_pending_remove(cmd);
+			goto failed;
+		}
+
+		memset(&param_cp, 0, sizeof(param_cp));
+		param_cp.type = LE_SCAN_ACTIVE;
+		param_cp.interval = cpu_to_le16(LE_SCAN_INT);
+		param_cp.window = cpu_to_le16(LE_SCAN_WIN);
+		hci_req_add(&req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
+			    &param_cp);
+
+		memset(&enable_cp, 0, sizeof(enable_cp));
+		enable_cp.enable = LE_SCAN_ENABLE;
+		enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
+		hci_req_add(&req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp),
+			    &enable_cp);
 		break;
 
 	default:
@@ -2730,6 +2805,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 		goto failed;
 	}
 
+	err = hci_req_run(&req, start_discovery_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
 	else
-- 
cgit v0.10.2


From fef5234a791507a2fe1ccfc85f080523fe762320 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:29 -0300
Subject: Bluetooth: Remove start discovery handling from hci_event.c

Since all mgmt start discovery command complete events are now handled
in start_discovery_complete callback in mgmt.c, we can remove this
handling from hci_event.c.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index b93cd2e..0e71e6c 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -943,12 +943,6 @@ static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
 
-	if (status) {
-		hci_dev_lock(hdev);
-		mgmt_start_discovery_failed(hdev, status);
-		hci_dev_unlock(hdev);
-		return;
-	}
 }
 
 static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
@@ -965,18 +959,10 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 
 	switch (cp->enable) {
 	case LE_SCAN_ENABLE:
-		if (status) {
-			hci_dev_lock(hdev);
-			mgmt_start_discovery_failed(hdev, status);
-			hci_dev_unlock(hdev);
+		if (status)
 			return;
-		}
 
 		set_bit(HCI_LE_SCAN, &hdev->dev_flags);
-
-		hci_dev_lock(hdev);
-		hci_discovery_set_state(hdev, DISCOVERY_FINDING);
-		hci_dev_unlock(hdev);
 		break;
 
 	case LE_SCAN_DISABLE:
@@ -1077,18 +1063,10 @@ static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 
 	if (status) {
 		hci_conn_check_pending(hdev);
-		hci_dev_lock(hdev);
-		if (test_bit(HCI_MGMT, &hdev->dev_flags))
-			mgmt_start_discovery_failed(hdev, status);
-		hci_dev_unlock(hdev);
 		return;
 	}
 
 	set_bit(HCI_INQUIRY, &hdev->flags);
-
-	hci_dev_lock(hdev);
-	hci_discovery_set_state(hdev, DISCOVERY_FINDING);
-	hci_dev_unlock(hdev);
 }
 
 static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
-- 
cgit v0.10.2


From 41dc2bd6d13bfccc34d05586be2eb65876a5990a Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:30 -0300
Subject: Bluetooth: Make mgmt_start_discovery_failed static

mgmt_start_discovery_failed is now only used in mgmt.c so we can
make it a local function. This patch also moves the mgmt_start_
discovery_failed definition up in mgmt.c to avoid forward
declaration.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 7c150e4..ff4e8a5 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1170,7 +1170,6 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		      u8 ssp, u8 *eir, u16 eir_len);
 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		     u8 addr_type, s8 rssi, u8 *name, u8 name_len);
-int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
 int mgmt_interleaved_discovery(struct hci_dev *hdev);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 434df71..a9bd271 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2650,6 +2650,27 @@ int mgmt_interleaved_discovery(struct hci_dev *hdev)
 	return err;
 }
 
+static int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status)
+{
+	struct pending_cmd *cmd;
+	u8 type;
+	int err;
+
+	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+
+	cmd = mgmt_pending_find(MGMT_OP_START_DISCOVERY, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	type = hdev->discovery.type;
+
+	err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status),
+			   &type, sizeof(type));
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
 static void start_discovery_complete(struct hci_dev *hdev, u8 status)
 {
 	BT_DBG("status %d", status);
@@ -4190,27 +4211,6 @@ int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			  sizeof(*ev) + eir_len, NULL);
 }
 
-int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status)
-{
-	struct pending_cmd *cmd;
-	u8 type;
-	int err;
-
-	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
-
-	cmd = mgmt_pending_find(MGMT_OP_START_DISCOVERY, hdev);
-	if (!cmd)
-		return -ENOENT;
-
-	type = hdev->discovery.type;
-
-	err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status),
-			   &type, sizeof(type));
-	mgmt_pending_remove(cmd);
-
-	return err;
-}
-
 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
-- 
cgit v0.10.2


From 0d8cc935e01c0fd1312a10881f4c0f1c4b4d05ab Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:31 -0300
Subject: Bluetooth: Move discovery macros to hci_core.h

Some of discovery macros will be used in hci_core so we need to
define them in common place such as hci_core.h. Thus, this patch
moves discovery macros to hci_core.h and also adds the DISCOV_
prefix to them.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index ff4e8a5..61939a0 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1115,6 +1115,16 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event);
 					 BIT(BDADDR_LE_PUBLIC) | \
 					 BIT(BDADDR_LE_RANDOM))
 
+/* These LE scan and inquiry parameters were chosen according to LE General
+ * Discovery Procedure specification.
+ */
+#define DISCOV_LE_SCAN_WIN		0x12
+#define DISCOV_LE_SCAN_INT		0x12
+#define DISCOV_LE_TIMEOUT		msecs_to_jiffies(10240)
+#define DISCOV_INTERLEAVED_TIMEOUT	msecs_to_jiffies(5120)
+#define DISCOV_INTERLEAVED_INQUIRY_LEN	0x04
+#define DISCOV_BREDR_INQUIRY_LEN	0x08
+
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 int mgmt_index_added(struct hci_dev *hdev);
 int mgmt_index_removed(struct hci_dev *hdev);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index a9bd271..6b31e93 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -102,18 +102,6 @@ static const u16 mgmt_events[] = {
 	MGMT_EV_PASSKEY_NOTIFY,
 };
 
-/*
- * These LE scan and inquiry parameters were chosen according to LE General
- * Discovery Procedure specification.
- */
-#define LE_SCAN_WIN			0x12
-#define LE_SCAN_INT			0x12
-#define LE_SCAN_TIMEOUT_LE_ONLY		msecs_to_jiffies(10240)
-#define LE_SCAN_TIMEOUT_BREDR_LE	msecs_to_jiffies(5120)
-
-#define INQUIRY_LEN_BREDR		0x08	/* TGAP(100) */
-#define INQUIRY_LEN_BREDR_LE		0x04	/* TGAP(100)/2 */
-
 #define CACHE_TIMEOUT	msecs_to_jiffies(2 * 1000)
 
 #define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \
@@ -2641,7 +2629,7 @@ int mgmt_interleaved_discovery(struct hci_dev *hdev)
 
 	hci_dev_lock(hdev);
 
-	err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR_LE);
+	err = hci_do_inquiry(hdev, DISCOV_INTERLEAVED_INQUIRY_LEN);
 	if (err < 0)
 		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
 
@@ -2689,12 +2677,12 @@ static void start_discovery_complete(struct hci_dev *hdev, u8 status)
 	switch (hdev->discovery.type) {
 	case DISCOV_TYPE_LE:
 		queue_delayed_work(hdev->workqueue, &hdev->le_scan_disable,
-				   LE_SCAN_TIMEOUT_LE_ONLY);
+				   DISCOV_LE_TIMEOUT);
 		break;
 
 	case DISCOV_TYPE_INTERLEAVED:
 		queue_delayed_work(hdev->workqueue, &hdev->le_scan_disable,
-				   LE_SCAN_TIMEOUT_BREDR_LE);
+				   DISCOV_INTERLEAVED_TIMEOUT);
 		break;
 
 	case DISCOV_TYPE_BREDR:
@@ -2770,7 +2758,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 
 		memset(&inq_cp, 0, sizeof(inq_cp));
 		memcpy(&inq_cp.lap, lap, sizeof(inq_cp.lap));
-		inq_cp.length = INQUIRY_LEN_BREDR;
+		inq_cp.length = DISCOV_BREDR_INQUIRY_LEN;
 		hci_req_add(&req, HCI_OP_INQUIRY, sizeof(inq_cp), &inq_cp);
 		break;
 
@@ -2807,8 +2795,8 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 
 		memset(&param_cp, 0, sizeof(param_cp));
 		param_cp.type = LE_SCAN_ACTIVE;
-		param_cp.interval = cpu_to_le16(LE_SCAN_INT);
-		param_cp.window = cpu_to_le16(LE_SCAN_WIN);
+		param_cp.interval = cpu_to_le16(DISCOV_LE_SCAN_INT);
+		param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN);
 		hci_req_add(&req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
 			    &param_cp);
 
-- 
cgit v0.10.2


From 4c87eaab01df271c81f6a68e3c28dbd44d348004 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:32 -0300
Subject: Bluetooth: Use HCI request in interleaved discovery

In order to have a better HCI error handling in interleaved discovery
functionality, we should use the HCI request framework.

This patch updates le_scan_disable_work function so it uses the
HCI request framework instead of the hci_send_cmd helper. A complete
callback is registered (le_scan_disable_work_complete function) so we
are able to trigger the inquiry procedure (if we are running the
interleaved discovery) or to stop the discovery procedure (if we are
running LE-only discovery).

This patch also removes the extra logic in hci_cc_le_set_scan_enable
to trigger the inquiry procedure and the mgmt_interleaved_discovery
function since they become useless.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 61939a0..b3bdad2 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1182,7 +1182,6 @@ int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		     u8 addr_type, s8 rssi, u8 *name, u8 name_len);
 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
-int mgmt_interleaved_discovery(struct hci_dev *hdev);
 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 bool mgmt_valid_hdev(struct hci_dev *hdev);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 43c6387..9270d7e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2067,17 +2067,80 @@ int hci_cancel_le_scan(struct hci_dev *hdev)
 	return 0;
 }
 
+static void inquiry_complete(struct hci_dev *hdev, u8 status)
+{
+	if (status) {
+		BT_ERR("Failed to start inquiry: status %d", status);
+
+		hci_dev_lock(hdev);
+		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+		hci_dev_unlock(hdev);
+		return;
+	}
+}
+
+static void le_scan_disable_work_complete(struct hci_dev *hdev, u8 status)
+{
+	/* General inquiry access code (GIAC) */
+	u8 lap[3] = { 0x33, 0x8b, 0x9e };
+	struct hci_request req;
+	struct hci_cp_inquiry cp;
+	int err;
+
+	if (status) {
+		BT_ERR("Failed to disable LE scanning: status %d", status);
+		return;
+	}
+
+	switch (hdev->discovery.type) {
+	case DISCOV_TYPE_LE:
+		hci_dev_lock(hdev);
+		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+		hci_dev_unlock(hdev);
+		break;
+
+	case DISCOV_TYPE_INTERLEAVED:
+		hci_req_init(&req, hdev);
+
+		memset(&cp, 0, sizeof(cp));
+		memcpy(&cp.lap, lap, sizeof(cp.lap));
+		cp.length = DISCOV_INTERLEAVED_INQUIRY_LEN;
+		hci_req_add(&req, HCI_OP_INQUIRY, sizeof(cp), &cp);
+
+		hci_dev_lock(hdev);
+
+		hci_inquiry_cache_flush(hdev);
+
+		err = hci_req_run(&req, inquiry_complete);
+		if (err) {
+			BT_ERR("Inquiry request failed: err %d", err);
+			hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+		}
+
+		hci_dev_unlock(hdev);
+		break;
+	}
+}
+
 static void le_scan_disable_work(struct work_struct *work)
 {
 	struct hci_dev *hdev = container_of(work, struct hci_dev,
 					    le_scan_disable.work);
 	struct hci_cp_le_set_scan_enable cp;
+	struct hci_request req;
+	int err;
 
 	BT_DBG("%s", hdev->name);
 
+	hci_req_init(&req, hdev);
+
 	memset(&cp, 0, sizeof(cp));
+	cp.enable = LE_SCAN_DISABLE;
+	hci_req_add(&req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
 
-	hci_send_cmd(hdev, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
+	err = hci_req_run(&req, le_scan_disable_work_complete);
+	if (err)
+		BT_ERR("Disable LE scanning request failed: err %d", err);
 }
 
 static void le_scan_work(struct work_struct *work)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 0e71e6c..faaf1f3 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -974,16 +974,6 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 		}
 
 		clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
-
-		if (hdev->discovery.type == DISCOV_TYPE_INTERLEAVED &&
-		    hdev->discovery.state == DISCOVERY_FINDING) {
-			mgmt_interleaved_discovery(hdev);
-		} else {
-			hci_dev_lock(hdev);
-			hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
-			hci_dev_unlock(hdev);
-		}
-
 		break;
 
 	default:
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 6b31e93..743100f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2621,23 +2621,6 @@ static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
 	return err;
 }
 
-int mgmt_interleaved_discovery(struct hci_dev *hdev)
-{
-	int err;
-
-	BT_DBG("%s", hdev->name);
-
-	hci_dev_lock(hdev);
-
-	err = hci_do_inquiry(hdev, DISCOV_INTERLEAVED_INQUIRY_LEN);
-	if (err < 0)
-		hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
-
-	hci_dev_unlock(hdev);
-
-	return err;
-}
-
 static int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
-- 
cgit v0.10.2


From 0e05bba6f6f8c2dca7a13fe0566742277e92df07 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:33 -0300
Subject: Bluetooth: Update stop_discovery to use HCI request

This patch modifies the stop_discovery function so it uses the HCI
request framework.

The HCI request is built according to the current discovery state
(inquiry, LE scanning or name resolving) and a complete callback is
register to handle the command complete event for the stop discovery
command. This way, we move all stop_discovery mgmt handling code
spread in hci_event.c to a single place in mgmt.c.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 743100f..c33bc4f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2808,6 +2808,23 @@ failed:
 	return err;
 }
 
+static void stop_discovery_complete(struct hci_dev *hdev, u8 status)
+{
+	BT_DBG("status %d", status);
+
+	hci_dev_lock(hdev);
+
+	if (status) {
+		mgmt_stop_discovery_failed(hdev, status);
+		goto unlock;
+	}
+
+	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 			  u16 len)
 {
@@ -2815,6 +2832,8 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 	struct pending_cmd *cmd;
 	struct hci_cp_remote_name_req_cancel cp;
 	struct inquiry_entry *e;
+	struct hci_request req;
+	struct hci_cp_le_set_scan_enable enable_cp;
 	int err;
 
 	BT_DBG("%s", hdev->name);
@@ -2841,12 +2860,20 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto unlock;
 	}
 
+	hci_req_init(&req, hdev);
+
 	switch (hdev->discovery.state) {
 	case DISCOVERY_FINDING:
-		if (test_bit(HCI_INQUIRY, &hdev->flags))
-			err = hci_cancel_inquiry(hdev);
-		else
-			err = hci_cancel_le_scan(hdev);
+		if (test_bit(HCI_INQUIRY, &hdev->flags)) {
+			hci_req_add(&req, HCI_OP_INQUIRY_CANCEL, 0, NULL);
+		} else {
+			cancel_delayed_work(&hdev->le_scan_disable);
+
+			memset(&enable_cp, 0, sizeof(enable_cp));
+			enable_cp.enable = LE_SCAN_DISABLE;
+			hci_req_add(&req, HCI_OP_LE_SET_SCAN_ENABLE,
+				    sizeof(enable_cp), &enable_cp);
+		}
 
 		break;
 
@@ -2864,16 +2891,22 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
 		}
 
 		bacpy(&cp.bdaddr, &e->data.bdaddr);
-		err = hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ_CANCEL,
-				   sizeof(cp), &cp);
+		hci_req_add(&req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),
+			    &cp);
 
 		break;
 
 	default:
 		BT_DBG("unknown discovery state %u", hdev->discovery.state);
-		err = -EFAULT;
+
+		mgmt_pending_remove(cmd);
+		err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
+				   MGMT_STATUS_FAILED, &mgmt_cp->type,
+				   sizeof(mgmt_cp->type));
+		goto unlock;
 	}
 
+	err = hci_req_run(&req, stop_discovery_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
 	else
-- 
cgit v0.10.2


From 82f4785ca7b8d04ca6d0aaa37f1185c779744bc4 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:34 -0300
Subject: Bluetooth: Remove stop discovery handling from hci_event.c

Since all mgmt stop discovery command complete events are now handled
in stop_discovery_complete callback in mgmt.c, we can remove this
handling from hci_event.c.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index faaf1f3..27f66dc 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -40,21 +40,13 @@ static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s status 0x%2.2x", hdev->name, status);
 
-	if (status) {
-		hci_dev_lock(hdev);
-		mgmt_stop_discovery_failed(hdev, status);
-		hci_dev_unlock(hdev);
+	if (status)
 		return;
-	}
 
 	clear_bit(HCI_INQUIRY, &hdev->flags);
 	smp_mb__after_clear_bit(); /* wake_up_bit advises about this barrier */
 	wake_up_bit(&hdev->flags, HCI_INQUIRY);
 
-	hci_dev_lock(hdev);
-	hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
-	hci_dev_unlock(hdev);
-
 	hci_conn_check_pending(hdev);
 }
 
@@ -966,12 +958,8 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 		break;
 
 	case LE_SCAN_DISABLE:
-		if (status) {
-			hci_dev_lock(hdev);
-			mgmt_stop_discovery_failed(hdev, status);
-			hci_dev_unlock(hdev);
+		if (status)
 			return;
-		}
 
 		clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
 		break;
-- 
cgit v0.10.2


From 1183fdcad42495073045a2d9755e0a6ac2fa874e Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:35 -0300
Subject: Bluetooth: Make mgmt_stop_discovery_failed static

mgmt_stop_discovery_failed is now only used in mgmt.c so we can
make it a local function. This patch also moves the mgmt_stop_
discovery_failed definition up in mgmt.c to avoid forward
declaration.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b3bdad2..1b343ef 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1180,7 +1180,6 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		      u8 ssp, u8 *eir, u16 eir_len);
 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		     u8 addr_type, s8 rssi, u8 *name, u8 name_len);
-int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index c33bc4f..69d1720 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2808,6 +2808,22 @@ failed:
 	return err;
 }
 
+static int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status)
+{
+	struct pending_cmd *cmd;
+	int err;
+
+	cmd = mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status),
+			   &hdev->discovery.type, sizeof(hdev->discovery.type));
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
 static void stop_discovery_complete(struct hci_dev *hdev, u8 status)
 {
 	BT_DBG("status %d", status);
@@ -4215,22 +4231,6 @@ int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			  sizeof(*ev) + eir_len, NULL);
 }
 
-int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status)
-{
-	struct pending_cmd *cmd;
-	int err;
-
-	cmd = mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
-	if (!cmd)
-		return -ENOENT;
-
-	err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status),
-			   &hdev->discovery.type, sizeof(hdev->discovery.type));
-	mgmt_pending_remove(cmd);
-
-	return err;
-}
-
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering)
 {
 	struct mgmt_ev_discovering ev;
-- 
cgit v0.10.2


From 3fd319b830247a3fe5f489e622ab404b618e0906 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:36 -0300
Subject: Bluetooth: Refactor hci_cc_le_set_scan_enable

This patch does a trivial refactoring in hci_cc_le_set_scan_enable.
Since start and stop discovery command failures are now handled in
mgmt layer, the status check became empty. So, we can move it to
outside the switch statement.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 27f66dc..76ff1af 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -949,18 +949,15 @@ static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 	if (!cp)
 		return;
 
+	if (status)
+		return;
+
 	switch (cp->enable) {
 	case LE_SCAN_ENABLE:
-		if (status)
-			return;
-
 		set_bit(HCI_LE_SCAN, &hdev->dev_flags);
 		break;
 
 	case LE_SCAN_DISABLE:
-		if (status)
-			return;
-
 		clear_bit(HCI_LE_SCAN, &hdev->dev_flags);
 		break;
 
-- 
cgit v0.10.2


From 917eedc56c65ba96a3bab4c346d948e73dd872f1 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:37 -0300
Subject: Bluetooth: Remove LE scan helpers

This patch removes the LE scan helpers hci_le_scan and hci_cancel_
le_scan and all code related to it. We now use the HCI request
framework in device discovery functionality and these helpers are
no longer needed.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 1b343ef..5de7eb9 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -117,13 +117,6 @@ struct oob_data {
 	u8 randomizer[16];
 };
 
-struct le_scan_params {
-	u8 type;
-	u16 interval;
-	u16 window;
-	int timeout;
-};
-
 #define HCI_MAX_SHORT_NAME_LENGTH	10
 
 struct amp_assoc {
@@ -283,9 +276,6 @@ struct hci_dev {
 
 	struct delayed_work	le_scan_disable;
 
-	struct work_struct	le_scan;
-	struct le_scan_params	le_scan_params;
-
 	__s8			adv_tx_power;
 	__u8			adv_data[HCI_MAX_AD_LENGTH];
 	__u8			adv_data_len;
@@ -1222,9 +1212,6 @@ void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
 							__u8 ltk[16]);
 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
 int hci_cancel_inquiry(struct hci_dev *hdev);
-int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
-		int timeout);
-int hci_cancel_le_scan(struct hci_dev *hdev);
 
 u8 bdaddr_to_le(u8 bdaddr_type);
 
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 9270d7e..100539f 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1201,8 +1201,6 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 {
 	BT_DBG("%s %p", hdev->name, hdev);
 
-	cancel_work_sync(&hdev->le_scan);
-
 	cancel_delayed_work(&hdev->power_off);
 
 	hci_req_cancel(hdev, ENODEV);
@@ -1991,82 +1989,6 @@ int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 	return mgmt_device_unblocked(hdev, bdaddr, type);
 }
 
-static void le_scan_param_req(struct hci_request *req, unsigned long opt)
-{
-	struct le_scan_params *param =  (struct le_scan_params *) opt;
-	struct hci_cp_le_set_scan_param cp;
-
-	memset(&cp, 0, sizeof(cp));
-	cp.type = param->type;
-	cp.interval = cpu_to_le16(param->interval);
-	cp.window = cpu_to_le16(param->window);
-
-	hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(cp), &cp);
-}
-
-static void le_scan_enable_req(struct hci_request *req, unsigned long opt)
-{
-	struct hci_cp_le_set_scan_enable cp;
-
-	memset(&cp, 0, sizeof(cp));
-	cp.enable = LE_SCAN_ENABLE;
-	cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
-
-	hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
-}
-
-static int hci_do_le_scan(struct hci_dev *hdev, u8 type, u16 interval,
-			  u16 window, int timeout)
-{
-	long timeo = msecs_to_jiffies(3000);
-	struct le_scan_params param;
-	int err;
-
-	BT_DBG("%s", hdev->name);
-
-	if (test_bit(HCI_LE_SCAN, &hdev->dev_flags))
-		return -EINPROGRESS;
-
-	param.type = type;
-	param.interval = interval;
-	param.window = window;
-
-	hci_req_lock(hdev);
-
-	err = __hci_req_sync(hdev, le_scan_param_req, (unsigned long) &param,
-			     timeo);
-	if (!err)
-		err = __hci_req_sync(hdev, le_scan_enable_req, 0, timeo);
-
-	hci_req_unlock(hdev);
-
-	if (err < 0)
-		return err;
-
-	queue_delayed_work(hdev->workqueue, &hdev->le_scan_disable,
-			   timeout);
-
-	return 0;
-}
-
-int hci_cancel_le_scan(struct hci_dev *hdev)
-{
-	BT_DBG("%s", hdev->name);
-
-	if (!test_bit(HCI_LE_SCAN, &hdev->dev_flags))
-		return -EALREADY;
-
-	if (cancel_delayed_work(&hdev->le_scan_disable)) {
-		struct hci_cp_le_set_scan_enable cp;
-
-		/* Send HCI command to disable LE Scan */
-		memset(&cp, 0, sizeof(cp));
-		hci_send_cmd(hdev, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
-	}
-
-	return 0;
-}
-
 static void inquiry_complete(struct hci_dev *hdev, u8 status)
 {
 	if (status) {
@@ -2143,40 +2065,6 @@ static void le_scan_disable_work(struct work_struct *work)
 		BT_ERR("Disable LE scanning request failed: err %d", err);
 }
 
-static void le_scan_work(struct work_struct *work)
-{
-	struct hci_dev *hdev = container_of(work, struct hci_dev, le_scan);
-	struct le_scan_params *param = &hdev->le_scan_params;
-
-	BT_DBG("%s", hdev->name);
-
-	hci_do_le_scan(hdev, param->type, param->interval, param->window,
-		       param->timeout);
-}
-
-int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
-		int timeout)
-{
-	struct le_scan_params *param = &hdev->le_scan_params;
-
-	BT_DBG("%s", hdev->name);
-
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
-		return -ENOTSUPP;
-
-	if (work_busy(&hdev->le_scan))
-		return -EINPROGRESS;
-
-	param->type = type;
-	param->interval = interval;
-	param->window = window;
-	param->timeout = timeout;
-
-	queue_work(system_long_wq, &hdev->le_scan);
-
-	return 0;
-}
-
 /* Alloc HCI device */
 struct hci_dev *hci_alloc_dev(void)
 {
@@ -2211,7 +2099,6 @@ struct hci_dev *hci_alloc_dev(void)
 	INIT_WORK(&hdev->cmd_work, hci_cmd_work);
 	INIT_WORK(&hdev->tx_work, hci_tx_work);
 	INIT_WORK(&hdev->power_on, hci_power_on);
-	INIT_WORK(&hdev->le_scan, le_scan_work);
 
 	INIT_DELAYED_WORK(&hdev->power_off, hci_power_off);
 	INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off);
-- 
cgit v0.10.2


From b0434345f2a7330be5277b63606cff26a7965982 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:38 -0300
Subject: Bluetooth: Remove inquiry helpers

This patch removes hci_do_inquiry and hci_cancel_inquiry helpers. We
now use the HCI request framework in device discovery functionality
and these helpers are no longer needed.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 5de7eb9..f77885e 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1210,8 +1210,6 @@ void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 					u16 latency, u16 to_multiplier);
 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
 							__u8 ltk[16]);
-int hci_do_inquiry(struct hci_dev *hdev, u8 length);
-int hci_cancel_inquiry(struct hci_dev *hdev);
 
 u8 bdaddr_to_le(u8 bdaddr_type);
 
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 100539f..e2e9d40 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3501,36 +3501,6 @@ static void hci_cmd_work(struct work_struct *work)
 	}
 }
 
-int hci_do_inquiry(struct hci_dev *hdev, u8 length)
-{
-	/* General inquiry access code (GIAC) */
-	u8 lap[3] = { 0x33, 0x8b, 0x9e };
-	struct hci_cp_inquiry cp;
-
-	BT_DBG("%s", hdev->name);
-
-	if (test_bit(HCI_INQUIRY, &hdev->flags))
-		return -EINPROGRESS;
-
-	hci_inquiry_cache_flush(hdev);
-
-	memset(&cp, 0, sizeof(cp));
-	memcpy(&cp.lap, lap, sizeof(cp.lap));
-	cp.length  = length;
-
-	return hci_send_cmd(hdev, HCI_OP_INQUIRY, sizeof(cp), &cp);
-}
-
-int hci_cancel_inquiry(struct hci_dev *hdev)
-{
-	BT_DBG("%s", hdev->name);
-
-	if (!test_bit(HCI_INQUIRY, &hdev->flags))
-		return -EALREADY;
-
-	return hci_send_cmd(hdev, HCI_OP_INQUIRY_CANCEL, 0, NULL);
-}
-
 u8 bdaddr_to_le(u8 bdaddr_type)
 {
 	switch (bdaddr_type) {
-- 
cgit v0.10.2


From 8892d8beb37cb4ea531a5076946d5cc809b04c25 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:39 -0300
Subject: Bluetooth: Remove empty event handler

This patch removes the hci_cc_le_set_scan_param event handler. This
handler became empty because failures of this event are now handled
by start_discovery_complete function in mgmt.c.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 76ff1af..db58e72 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -929,14 +929,6 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
 	hci_dev_unlock(hdev);
 }
 
-static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
-{
-	__u8 status = *((__u8 *) skb->data);
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-}
-
 static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 				      struct sk_buff *skb)
 {
@@ -2251,10 +2243,6 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_user_passkey_neg_reply(hdev, skb);
 		break;
 
-	case HCI_OP_LE_SET_SCAN_PARAM:
-		hci_cc_le_set_scan_param(hdev, skb);
-		break;
-
 	case HCI_OP_LE_SET_ADV_ENABLE:
 		hci_cc_le_set_adv_enable(hdev, skb);
 		break;
-- 
cgit v0.10.2


From 12602d0cc005354a519b3eba443d7912ab71313a Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 30 Apr 2013 15:29:40 -0300
Subject: Bluetooth: Mgmt Device Found Event

We only want to send Mgmt Device Found Events if we are running the
Device Discovery procedure (started by the MGMT Start Discovery
Command). Inquiry or LE scanning triggered by HCI raw interface (e.g.
hcitool) or kernel internals should not send Mgmt Device Found Events.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 69d1720..7ae737f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4180,6 +4180,9 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	struct mgmt_ev_device_found *ev = (void *) buf;
 	size_t ev_size;
 
+	if (!hci_discovery_active(hdev))
+		return -EPERM;
+
 	/* Leave 5 bytes for a potential CoD field */
 	if (sizeof(*ev) + eir_len + 5 > sizeof(buf))
 		return -EINVAL;
-- 
cgit v0.10.2


From 034cbea0931433cf88a1f79a385402604f08bd67 Mon Sep 17 00:00:00 2001
From: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Date: Tue, 14 May 2013 11:44:16 +0300
Subject: Bluetooth: Use HCI_MGMT instead of HCI_LINK_KEYS flag

Use HCI_MGMT flag instead of HCI_LINK_KEYS flag. There is a problem with
HCI_LINK_KEYS flag since it is set only when link keys are loaded. Otherwise
kernel assumes that old interface is used.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index db58e72..0437200 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2611,7 +2611,7 @@ static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 	BT_DBG("%s", hdev->name);
 
-	if (!test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
+	if (!test_bit(HCI_MGMT, &hdev->dev_flags))
 		return;
 
 	hci_dev_lock(hdev);
@@ -2687,7 +2687,7 @@ static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_conn_drop(conn);
 	}
 
-	if (test_bit(HCI_LINK_KEYS, &hdev->dev_flags))
+	if (test_bit(HCI_MGMT, &hdev->dev_flags))
 		hci_add_link_key(hdev, conn, 1, &ev->bdaddr, ev->link_key,
 				 ev->key_type, pin_len);
 
-- 
cgit v0.10.2


From 0a804654af62dfea4899c66561d74d72273b2921 Mon Sep 17 00:00:00 2001
From: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Date: Tue, 14 May 2013 11:44:17 +0300
Subject: Bluetooth: Remove unneeded flag

Remove HCI_LINK_KEYS flag since using HCI_MGMT is enough for test that
user space expects the kernel managing link keys.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index e0512aa..3c592cf 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -107,7 +107,6 @@ enum {
 	HCI_MGMT,
 	HCI_PAIRABLE,
 	HCI_SERVICE_CACHE,
-	HCI_LINK_KEYS,
 	HCI_DEBUG_KEYS,
 	HCI_UNREGISTER,
 
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 7ae737f..fedc539 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1736,8 +1736,6 @@ static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	hci_link_keys_clear(hdev);
 
-	set_bit(HCI_LINK_KEYS, &hdev->dev_flags);
-
 	if (cp->debug_keys)
 		set_bit(HCI_DEBUG_KEYS, &hdev->dev_flags);
 	else
-- 
cgit v0.10.2


From 673e1dd7ed7701cac8c5c247d152fd3d2da2a4f1 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Mon, 13 May 2013 10:07:11 +0800
Subject: Bluetooth: hidp: using strlcpy instead of strncpy, also beautify
 code.

For NULL terminated string, need always let it ended by zero.

Since have already called memcpy() to initialize 'ci', so need not
redundant initialization.

Better use ''if(session->hid) {} else if(session->input) {}"" instead
of ''if(session->hid) {}; if(session->input) {};''

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 940f5ac..f13a8da 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -76,25 +76,19 @@ static void hidp_copy_session(struct hidp_session *session, struct hidp_conninfo
 	ci->flags = session->flags;
 	ci->state = BT_CONNECTED;
 
-	ci->vendor  = 0x0000;
-	ci->product = 0x0000;
-	ci->version = 0x0000;
-
 	if (session->input) {
 		ci->vendor  = session->input->id.vendor;
 		ci->product = session->input->id.product;
 		ci->version = session->input->id.version;
 		if (session->input->name)
-			strncpy(ci->name, session->input->name, 128);
+			strlcpy(ci->name, session->input->name, 128);
 		else
-			strncpy(ci->name, "HID Boot Device", 128);
-	}
-
-	if (session->hid) {
+			strlcpy(ci->name, "HID Boot Device", 128);
+	} else if (session->hid) {
 		ci->vendor  = session->hid->vendor;
 		ci->product = session->hid->product;
 		ci->version = session->hid->version;
-		strncpy(ci->name, session->hid->name, 128);
+		strlcpy(ci->name, session->hid->name, 128);
 	}
 }
 
-- 
cgit v0.10.2


From 502f769662978a2fe99d0caed5e53e3006107381 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Tue, 21 May 2013 09:32:06 -0600
Subject: Bluetooth: Add missing reset_resume dev_pm_ops

Add missing reset_resume dev_pm_ops. Missing reset_resume results in the
following message after power management device test. This change sets
reset_resume to btusb_resume().

[ 2506.936134] btusb 1-1.5:1.0: no reset_resume for driver btusb?
[ 2506.936137] btusb 1-1.5:1.1: no reset_resume for driver btusb?

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 81f1275..de4cf4d 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -1619,6 +1619,7 @@ static struct usb_driver btusb_driver = {
 #ifdef CONFIG_PM
 	.suspend	= btusb_suspend,
 	.resume		= btusb_resume,
+	.reset_resume	= btusb_resume,
 #endif
 	.id_table	= btusb_table,
 	.supports_autosuspend = 1,
-- 
cgit v0.10.2


From b8f4e068004859eefac7b1ced59ddb67ca6d2d80 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Thu, 13 Jun 2013 12:34:31 +0100
Subject: Bluetooth: Improve comments on the HCI_Delete_Store_Link_Key issue

Some Bluetooth controllers doesn't support this command so we first
need to check for its support before sending it. This patch adds a
lengthful commentary about this.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index e2e9d40..061523e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -597,7 +597,15 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
 	struct hci_dev *hdev = req->hdev;
 	u8 p;
 
-	/* Only send HCI_Delete_Stored_Link_Key if it is supported */
+	/* Some Broadcom based Bluetooth controllers do not support the
+	 * Delete Stored Link Key command. They are clearly indicating its
+	 * absence in the bit mask of supported commands.
+	 *
+	 * Check the supported commands and only if the the command is marked
+	 * as supported send it. If not supported assume that the controller
+	 * does not have actual support for stored link keys which makes this
+	 * command redundant anyway.
+         */
 	if (hdev->commands[6] & 0x80) {
 		struct hci_cp_delete_stored_link_key cp;
 
-- 
cgit v0.10.2


From b6b4316c8b2fa6af5cee71e7defd09527b9d1cf9 Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Sat, 22 Jun 2013 04:12:00 -0400
Subject: qlcnic: Handle qlcnic_alloc_mbx_args() failure

qlcnic_alloc_mbx_args() may fail due to failure in memory allocation.
This patch checks for failure of qlcnic_alloc_mbx_args() to avoid
potential invalid memory access.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index f63a695..88e2e23 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -844,7 +844,9 @@ void qlcnic_83xx_idc_aen_work(struct work_struct *work)
 	int i, err = 0;
 
 	adapter = container_of(work, struct qlcnic_adapter, idc_aen_work.work);
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_IDC_ACK);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_IDC_ACK);
+	if (err)
+		return;
 
 	for (i = 1; i < QLC_83XX_MBX_AEN_CNT; i++)
 		cmd.req.arg[i] = adapter->ahw->mbox_aen[i];
@@ -1085,8 +1087,10 @@ int qlcnic_83xx_create_rx_ctx(struct qlcnic_adapter *adapter)
 		cap |= QLC_83XX_FW_CAP_LRO_MSS;
 
 	/* set mailbox hdr and capabilities */
-	qlcnic_alloc_mbx_args(&cmd, adapter,
-			      QLCNIC_CMD_CREATE_RX_CTX);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_CREATE_RX_CTX);
+	if (err)
+		return err;
 
 	if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
 		cmd.req.arg[0] |= (0x3 << 29);
@@ -1244,7 +1248,9 @@ int qlcnic_83xx_create_tx_ctx(struct qlcnic_adapter *adapter,
 		mbx.intr_id = 0xffff;
 	mbx.src = 0;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_TX_CTX);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_TX_CTX);
+	if (err)
+		return err;
 
 	if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
 		cmd.req.arg[0] |= (0x3 << 29);
@@ -1390,8 +1396,11 @@ int qlcnic_83xx_config_led(struct qlcnic_adapter *adapter, u32 state,
 
 	if (state) {
 		/* Get LED configuration */
-		qlcnic_alloc_mbx_args(&cmd, adapter,
-				      QLCNIC_CMD_GET_LED_CONFIG);
+		status = qlcnic_alloc_mbx_args(&cmd, adapter,
+					       QLCNIC_CMD_GET_LED_CONFIG);
+		if (status)
+			return status;
+
 		status = qlcnic_issue_cmd(adapter, &cmd);
 		if (status) {
 			dev_err(&adapter->pdev->dev,
@@ -1405,8 +1414,11 @@ int qlcnic_83xx_config_led(struct qlcnic_adapter *adapter, u32 state,
 		/* Set LED Configuration */
 		mbx_in = (LSW(QLC_83XX_LED_CONFIG) << 16) |
 			  LSW(QLC_83XX_LED_CONFIG);
-		qlcnic_alloc_mbx_args(&cmd, adapter,
-				      QLCNIC_CMD_SET_LED_CONFIG);
+		status = qlcnic_alloc_mbx_args(&cmd, adapter,
+					       QLCNIC_CMD_SET_LED_CONFIG);
+		if (status)
+			return status;
+
 		cmd.req.arg[1] = mbx_in;
 		cmd.req.arg[2] = mbx_in;
 		cmd.req.arg[3] = mbx_in;
@@ -1423,8 +1435,11 @@ mbx_err:
 
 	} else {
 		/* Restoring default LED configuration */
-		qlcnic_alloc_mbx_args(&cmd, adapter,
-				      QLCNIC_CMD_SET_LED_CONFIG);
+		status = qlcnic_alloc_mbx_args(&cmd, adapter,
+					       QLCNIC_CMD_SET_LED_CONFIG);
+		if (status)
+			return status;
+
 		cmd.req.arg[1] = adapter->ahw->mbox_reg[0];
 		cmd.req.arg[2] = adapter->ahw->mbox_reg[1];
 		cmd.req.arg[3] = adapter->ahw->mbox_reg[2];
@@ -1494,10 +1509,18 @@ void qlcnic_83xx_register_nic_idc_func(struct qlcnic_adapter *adapter,
 		return;
 
 	if (enable) {
-		qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_INIT_NIC_FUNC);
+		status = qlcnic_alloc_mbx_args(&cmd, adapter,
+					       QLCNIC_CMD_INIT_NIC_FUNC);
+		if (status)
+			return;
+
 		cmd.req.arg[1] = BIT_0 | BIT_31;
 	} else {
-		qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_STOP_NIC_FUNC);
+		status = qlcnic_alloc_mbx_args(&cmd, adapter,
+					       QLCNIC_CMD_STOP_NIC_FUNC);
+		if (status)
+			return;
+
 		cmd.req.arg[1] = BIT_0 | BIT_31;
 	}
 	status = qlcnic_issue_cmd(adapter, &cmd);
@@ -1514,7 +1537,10 @@ int qlcnic_83xx_set_port_config(struct qlcnic_adapter *adapter)
 	struct qlcnic_cmd_args cmd;
 	int err;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_PORT_CONFIG);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_PORT_CONFIG);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = adapter->ahw->port_config;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 	if (err)
@@ -1528,7 +1554,10 @@ int qlcnic_83xx_get_port_config(struct qlcnic_adapter *adapter)
 	struct qlcnic_cmd_args cmd;
 	int err;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PORT_CONFIG);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PORT_CONFIG);
+	if (err)
+		return err;
+
 	err = qlcnic_issue_cmd(adapter, &cmd);
 	if (err)
 		dev_info(&adapter->pdev->dev, "Get Port config failed\n");
@@ -1544,7 +1573,10 @@ int qlcnic_83xx_setup_link_event(struct qlcnic_adapter *adapter, int enable)
 	u32 temp;
 	struct qlcnic_cmd_args cmd;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_EVENT);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_EVENT);
+	if (err)
+		return err;
+
 	temp = adapter->recv_ctx->context_id << 16;
 	cmd.req.arg[1] = (enable ? 1 : 0) | BIT_8 | temp;
 	err = qlcnic_issue_cmd(adapter, &cmd);
@@ -1575,7 +1607,11 @@ int qlcnic_83xx_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
 	if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
 		return -EIO;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_MAC_RX_MODE);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_CONFIGURE_MAC_RX_MODE);
+	if (err)
+		return err;
+
 	qlcnic_83xx_set_interface_id_promisc(adapter, &temp);
 	cmd.req.arg[1] = (mode ? 1 : 0) | temp;
 	err = qlcnic_issue_cmd(adapter, &cmd);
@@ -1762,7 +1798,11 @@ void qlcnic_83xx_config_ipaddr(struct qlcnic_adapter *adapter, __be32 ip,
 	u32 temp = 0, temp_ip;
 	struct qlcnic_cmd_args cmd;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_IP_ADDR);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_CONFIGURE_IP_ADDR);
+	if (err)
+		return;
+
 	qlcnic_83xx_set_interface_id_ipaddr(adapter, &temp);
 
 	if (mode == QLCNIC_IP_UP)
@@ -1801,7 +1841,10 @@ int qlcnic_83xx_config_hw_lro(struct qlcnic_adapter *adapter, int mode)
 	if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
 		return 0;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_HW_LRO);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_HW_LRO);
+	if (err)
+		return err;
+
 	temp = adapter->recv_ctx->context_id << 16;
 	arg1 = lro_bit_mask | temp;
 	cmd.req.arg[1] = arg1;
@@ -1823,8 +1866,9 @@ int qlcnic_83xx_config_rss(struct qlcnic_adapter *adapter, int enable)
 			    0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
 			    0x255b0ec26d5a56daULL };
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_RSS);
-
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_RSS);
+	if (err)
+		return err;
 	/*
 	 * RSS request:
 	 * bits 3-0: Rsvd
@@ -1930,7 +1974,10 @@ int qlcnic_83xx_get_mac_address(struct qlcnic_adapter *adapter, u8 *mac)
 	struct qlcnic_cmd_args cmd;
 	u32 mac_low, mac_high;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_MAC_ADDRESS);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_MAC_ADDRESS);
+	if (err)
+		return err;
+
 	qlcnic_83xx_configure_mac(adapter, mac, QLCNIC_GET_CURRENT_MAC, &cmd);
 	err = qlcnic_issue_cmd(adapter, &cmd);
 
@@ -1961,7 +2008,10 @@ void qlcnic_83xx_config_intr_coal(struct qlcnic_adapter *adapter)
 	if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
 		return;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTR_COAL);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTR_COAL);
+	if (err)
+		return;
+
 	if (coal->type == QLCNIC_INTR_COAL_TYPE_RX) {
 		temp = adapter->recv_ctx->context_id;
 		cmd.req.arg[1] = QLCNIC_INTR_COAL_TYPE_RX | temp << 16;
@@ -2033,7 +2083,10 @@ int qlcnic_enable_eswitch(struct qlcnic_adapter *adapter, u8 port, u8 enable)
 		return err;
 	}
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_TOGGLE_ESWITCH);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_TOGGLE_ESWITCH);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = (port & 0xf) | BIT_4;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 
@@ -2061,7 +2114,10 @@ int qlcnic_83xx_set_nic_info(struct qlcnic_adapter *adapter,
 		return err;
 	}
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = (nic->pci_func << 16);
 	cmd.req.arg[2] = 0x1 << 16;
 	cmd.req.arg[3] = nic->phys_port | (nic->switch_mode << 16);
@@ -2093,7 +2149,10 @@ int qlcnic_83xx_get_nic_info(struct qlcnic_adapter *adapter,
 	u8 op = 0;
 	struct qlcnic_cmd_args cmd;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
+	if (err)
+		return err;
+
 	if (func_id != adapter->ahw->pci_func) {
 		temp = func_id << 16;
 		cmd.req.arg[1] = op | BIT_31 | temp;
@@ -2140,7 +2199,10 @@ int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *adapter,
 	int i, err = 0, j = 0;
 	u32 temp;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PCI_INFO);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PCI_INFO);
+	if (err)
+		return err;
+
 	err = qlcnic_issue_cmd(adapter, &cmd);
 
 	ahw->act_pci_func = 0;
@@ -2195,7 +2257,10 @@ int qlcnic_83xx_config_intrpt(struct qlcnic_adapter *adapter, bool op_type)
 	struct qlcnic_cmd_args cmd;
 
 	max_ints = adapter->ahw->num_msix - 1;
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTRPT);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTRPT);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = max_ints;
 
 	if (qlcnic_sriov_vf_check(adapter))
@@ -2823,7 +2888,11 @@ int qlcnic_83xx_test_link(struct qlcnic_adapter *adapter)
 		dev_info(&adapter->pdev->dev, "link state down\n");
 		return config;
 	}
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_STATUS);
+
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_STATUS);
+	if (err)
+		return err;
+
 	err = qlcnic_issue_cmd(adapter, &cmd);
 	if (err) {
 		dev_info(&adapter->pdev->dev,
@@ -3049,7 +3118,9 @@ void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data)
 	struct net_device *netdev = adapter->netdev;
 	int ret = 0;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_STATISTICS);
+	ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_STATISTICS);
+	if (ret)
+		return;
 	/* Get Tx stats */
 	cmd.req.arg[1] = BIT_1 | (adapter->tx_ring->ctx_id << 16);
 	cmd.rsp.num = QLC_83XX_TX_STAT_REGS;
@@ -3139,7 +3210,9 @@ int qlcnic_83xx_interrupt_test(struct net_device *netdev)
 		goto fail_diag_irq;
 
 	ahw->diag_cnt = 0;
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_INTRPT_TEST);
+	ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_INTRPT_TEST);
+	if (ret)
+		goto fail_diag_irq;
 
 	if (adapter->flags & QLCNIC_MSIX_ENABLED)
 		intrpt_id = ahw->intr_tbl[0].id;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index aa26250..f073c08 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -2083,7 +2083,11 @@ static void qlcnic_83xx_clear_function_resources(struct qlcnic_adapter *adapter)
 	audit_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT);
 
 	if (IS_QLC_83XX_USED(adapter, presence_mask, audit_mask)) {
-		qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_STOP_NIC_FUNC);
+		status = qlcnic_alloc_mbx_args(&cmd, adapter,
+					       QLCNIC_CMD_STOP_NIC_FUNC);
+		if (status)
+			return;
+
 		cmd.req.arg[1] = BIT_31;
 		status = qlcnic_issue_cmd(adapter, &cmd);
 		if (status)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index 9d0ae11..72593a1 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -194,7 +194,10 @@ int qlcnic_fw_cmd_set_drv_version(struct qlcnic_adapter *adapter)
 		 _QLCNIC_LINUX_MAJOR, _QLCNIC_LINUX_MINOR,
 		 _QLCNIC_LINUX_SUBVERSION);
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_DRV_VER);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_DRV_VER);
+	if (err)
+		return err;
+
 	memcpy(&arg1, drv_string, sizeof(u32));
 	memcpy(&arg2, drv_string + 4, sizeof(u32));
 	memcpy(&arg3, drv_string + 8, sizeof(u32));
@@ -222,7 +225,10 @@ qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu)
 
 	if (recv_ctx->state != QLCNIC_HOST_CTX_STATE_ACTIVE)
 		return err;
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_MTU);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_MTU);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = recv_ctx->context_id;
 	cmd.req.arg[2] = mtu;
 
@@ -336,7 +342,10 @@ int qlcnic_82xx_fw_cmd_create_rx_ctx(struct qlcnic_adapter *adapter)
 	}
 
 	phys_addr = hostrq_phys_addr;
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_RX_CTX);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_RX_CTX);
+	if (err)
+		goto out_free_rsp;
+
 	cmd.req.arg[1] = MSD(phys_addr);
 	cmd.req.arg[2] = LSD(phys_addr);
 	cmd.req.arg[3] = rq_size;
@@ -374,10 +383,10 @@ int qlcnic_82xx_fw_cmd_create_rx_ctx(struct qlcnic_adapter *adapter)
 	recv_ctx->context_id = le16_to_cpu(prsp->context_id);
 	recv_ctx->virt_port = prsp->virt_port;
 
+	qlcnic_free_mbx_args(&cmd);
 out_free_rsp:
 	dma_free_coherent(&adapter->pdev->dev, rsp_size, prsp,
-		cardrsp_phys_addr);
-	qlcnic_free_mbx_args(&cmd);
+			  cardrsp_phys_addr);
 out_free_rq:
 	dma_free_coherent(&adapter->pdev->dev, rq_size, prq, hostrq_phys_addr);
 	return err;
@@ -389,7 +398,10 @@ void qlcnic_82xx_fw_cmd_del_rx_ctx(struct qlcnic_adapter *adapter)
 	struct qlcnic_cmd_args cmd;
 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_RX_CTX);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_RX_CTX);
+	if (err)
+		return;
+
 	cmd.req.arg[1] = recv_ctx->context_id;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 	if (err)
@@ -458,7 +470,10 @@ int qlcnic_82xx_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter,
 
 	phys_addr = rq_phys_addr;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_TX_CTX);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_TX_CTX);
+	if (err)
+		goto out_free_rsp;
+
 	cmd.req.arg[1] = MSD(phys_addr);
 	cmd.req.arg[2] = LSD(phys_addr);
 	cmd.req.arg[3] = rq_size;
@@ -474,12 +489,13 @@ int qlcnic_82xx_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter,
 		err = -EIO;
 	}
 
+	qlcnic_free_mbx_args(&cmd);
+
+out_free_rsp:
 	dma_free_coherent(&adapter->pdev->dev, rsp_size, rsp_addr,
 			  rsp_phys_addr);
-
 out_free_rq:
 	dma_free_coherent(&adapter->pdev->dev, rq_size, rq_addr, rq_phys_addr);
-	qlcnic_free_mbx_args(&cmd);
 
 	return err;
 }
@@ -488,8 +504,11 @@ void qlcnic_82xx_fw_cmd_del_tx_ctx(struct qlcnic_adapter *adapter,
 				   struct qlcnic_host_tx_ring *tx_ring)
 {
 	struct qlcnic_cmd_args cmd;
+	int ret;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_TX_CTX);
+	ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_TX_CTX);
+	if (ret)
+		return;
 
 	cmd.req.arg[1] = tx_ring->ctx_id;
 	if (qlcnic_issue_cmd(adapter, &cmd))
@@ -504,7 +523,10 @@ qlcnic_fw_cmd_set_port(struct qlcnic_adapter *adapter, u32 config)
 	int err;
 	struct qlcnic_cmd_args cmd;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_PORT);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_PORT);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = config;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 	qlcnic_free_mbx_args(&cmd);
@@ -708,7 +730,10 @@ int qlcnic_82xx_get_mac_address(struct qlcnic_adapter *adapter, u8 *mac)
 	struct qlcnic_cmd_args cmd;
 	u32 mac_low, mac_high;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_MAC_ADDRESS);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_MAC_ADDRESS);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = adapter->ahw->pci_func | BIT_8;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 
@@ -747,7 +772,10 @@ int qlcnic_82xx_get_nic_info(struct qlcnic_adapter *adapter,
 
 	nic_info = nic_info_addr;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
+	if (err)
+		goto out_free_dma;
+
 	cmd.req.arg[1] = MSD(nic_dma_t);
 	cmd.req.arg[2] = LSD(nic_dma_t);
 	cmd.req.arg[3] = (func_id << 16 | nic_size);
@@ -769,9 +797,10 @@ int qlcnic_82xx_get_nic_info(struct qlcnic_adapter *adapter,
 		npar_info->max_mtu = le16_to_cpu(nic_info->max_mtu);
 	}
 
+	qlcnic_free_mbx_args(&cmd);
+out_free_dma:
 	dma_free_coherent(&adapter->pdev->dev, nic_size, nic_info_addr,
 			  nic_dma_t);
-	qlcnic_free_mbx_args(&cmd);
 
 	return err;
 }
@@ -808,7 +837,10 @@ int qlcnic_82xx_set_nic_info(struct qlcnic_adapter *adapter,
 	nic_info->min_tx_bw = cpu_to_le16(nic->min_tx_bw);
 	nic_info->max_tx_bw = cpu_to_le16(nic->max_tx_bw);
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO);
+	if (err)
+		goto out_free_dma;
+
 	cmd.req.arg[1] = MSD(nic_dma_t);
 	cmd.req.arg[2] = LSD(nic_dma_t);
 	cmd.req.arg[3] = ((nic->pci_func << 16) | nic_size);
@@ -820,9 +852,10 @@ int qlcnic_82xx_set_nic_info(struct qlcnic_adapter *adapter,
 		err = -EIO;
 	}
 
-	dma_free_coherent(&adapter->pdev->dev, nic_size, nic_info_addr,
-		nic_dma_t);
 	qlcnic_free_mbx_args(&cmd);
+out_free_dma:
+	dma_free_coherent(&adapter->pdev->dev, nic_size, nic_info_addr,
+			  nic_dma_t);
 
 	return err;
 }
@@ -846,7 +879,10 @@ int qlcnic_82xx_get_pci_info(struct qlcnic_adapter *adapter,
 		return -ENOMEM;
 
 	npar = pci_info_addr;
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PCI_INFO);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PCI_INFO);
+	if (err)
+		goto out_free_dma;
+
 	cmd.req.arg[1] = MSD(pci_info_dma_t);
 	cmd.req.arg[2] = LSD(pci_info_dma_t);
 	cmd.req.arg[3] = pci_size;
@@ -874,9 +910,10 @@ int qlcnic_82xx_get_pci_info(struct qlcnic_adapter *adapter,
 		err = -EIO;
 	}
 
+	qlcnic_free_mbx_args(&cmd);
+out_free_dma:
 	dma_free_coherent(&adapter->pdev->dev, pci_size, pci_info_addr,
 		pci_info_dma_t);
-	qlcnic_free_mbx_args(&cmd);
 
 	return err;
 }
@@ -897,7 +934,11 @@ int qlcnic_config_port_mirroring(struct qlcnic_adapter *adapter, u8 id,
 	arg1 = id | (enable_mirroring ? BIT_4 : 0);
 	arg1 |= pci_func << 8;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_PORTMIRRORING);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_SET_PORTMIRRORING);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = arg1;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 
@@ -941,7 +982,11 @@ int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func,
 	arg1 = func | QLCNIC_STATS_VERSION << 8 | QLCNIC_STATS_PORT << 12;
 	arg1 |= rx_tx << 15 | stats_size << 16;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_ESWITCH_STATS);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_GET_ESWITCH_STATS);
+	if (err)
+		goto out_free_dma;
+
 	cmd.req.arg[1] = arg1;
 	cmd.req.arg[2] = MSD(stats_dma_t);
 	cmd.req.arg[3] = LSD(stats_dma_t);
@@ -963,9 +1008,10 @@ int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func,
 		esw_stats->numbytes = le64_to_cpu(stats->numbytes);
 	}
 
-	dma_free_coherent(&adapter->pdev->dev, stats_size, stats_addr,
-		stats_dma_t);
 	qlcnic_free_mbx_args(&cmd);
+out_free_dma:
+	dma_free_coherent(&adapter->pdev->dev, stats_size, stats_addr,
+			  stats_dma_t);
 
 	return err;
 }
@@ -989,7 +1035,10 @@ int qlcnic_get_mac_stats(struct qlcnic_adapter *adapter,
 	if (!stats_addr)
 		return -ENOMEM;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_MAC_STATS);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_MAC_STATS);
+	if (err)
+		goto out_free_dma;
+
 	cmd.req.arg[1] = stats_size << 16;
 	cmd.req.arg[2] = MSD(stats_dma_t);
 	cmd.req.arg[3] = LSD(stats_dma_t);
@@ -1020,11 +1069,12 @@ int qlcnic_get_mac_stats(struct qlcnic_adapter *adapter,
 			"%s: Get mac stats failed, err=%d.\n", __func__, err);
 	}
 
-	dma_free_coherent(&adapter->pdev->dev, stats_size, stats_addr,
-		stats_dma_t);
-
 	qlcnic_free_mbx_args(&cmd);
 
+out_free_dma:
+	dma_free_coherent(&adapter->pdev->dev, stats_size, stats_addr,
+			  stats_dma_t);
+
 	return err;
 }
 
@@ -1108,7 +1158,11 @@ int qlcnic_clear_esw_stats(struct qlcnic_adapter *adapter, const u8 func_esw,
 	arg1 = port | QLCNIC_STATS_VERSION << 8 | func_esw << 12;
 	arg1 |= BIT_14 | rx_tx << 15;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_ESWITCH_STATS);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_GET_ESWITCH_STATS);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = arg1;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 	qlcnic_free_mbx_args(&cmd);
@@ -1127,10 +1181,13 @@ static int __qlcnic_get_eswitch_port_config(struct qlcnic_adapter *adapter,
 	struct device *dev = &adapter->pdev->dev;
 	struct qlcnic_cmd_args cmd;
 	u8 pci_func = *arg1 >> 8;
-	int err = -EIO;
+	int err;
+
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_GET_ESWITCH_PORT_CONFIG);
+	if (err)
+		return err;
 
-	qlcnic_alloc_mbx_args(&cmd, adapter,
-			      QLCNIC_CMD_GET_ESWITCH_PORT_CONFIG);
 	cmd.req.arg[1] = *arg1;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 	*arg1 = cmd.rsp.arg[1];
@@ -1208,7 +1265,11 @@ int qlcnic_config_switch_port(struct qlcnic_adapter *adapter,
 		return err;
 	}
 
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_ESWITCH);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter,
+				    QLCNIC_CMD_CONFIGURE_ESWITCH);
+	if (err)
+		return err;
+
 	cmd.req.arg[1] = arg1;
 	cmd.req.arg[2] = arg2;
 	err = qlcnic_issue_cmd(adapter, &cmd);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index f67652d..700a463 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -846,7 +846,9 @@ static int qlcnic_irq_test(struct net_device *netdev)
 		goto clear_diag_irq;
 
 	ahw->diag_cnt = 0;
-	qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_INTRPT_TEST);
+	ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_INTRPT_TEST);
+	if (ret)
+		goto free_diag_res;
 
 	cmd.req.arg[1] = ahw->pci_func;
 	ret = qlcnic_issue_cmd(adapter, &cmd);
@@ -858,6 +860,8 @@ static int qlcnic_irq_test(struct net_device *netdev)
 
 done:
 	qlcnic_free_mbx_args(&cmd);
+
+free_diag_res:
 	qlcnic_diag_free_res(netdev, max_sds_rings);
 
 clear_diag_irq:
-- 
cgit v0.10.2


From 52e493d01cbf85871f0d1fdaeffdf376444e5d50 Mon Sep 17 00:00:00 2001
From: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Date: Sat, 22 Jun 2013 04:12:01 -0400
Subject: qlcnic: Secondary unicast MAC address support.

Add support for configuring secondary unicast address which
will use existing HW filters to store all the unicast MAC
addresses and prevent device going into promiscuous mode.

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 534e36e..28a1276 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -426,6 +426,7 @@ struct qlcnic_hardware_context {
 	u8 nic_mode;
 	char diag_cnt;
 
+	u16 max_uc_count;
 	u16 port_type;
 	u16 board_type;
 	u16 supported_type;
@@ -1494,6 +1495,7 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
 int qlcnic_set_max_rss(struct qlcnic_adapter *, u8, size_t);
 int qlcnic_validate_max_rss(struct qlcnic_adapter *, __u32);
 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
+void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
 int qlcnic_enable_msix(struct qlcnic_adapter *, u32);
 
 /*  eSwitch management functions */
@@ -1631,6 +1633,7 @@ struct qlcnic_hardware_ops {
 	int (*config_promisc_mode) (struct qlcnic_adapter *, u32);
 	void (*change_l2_filter) (struct qlcnic_adapter *, u64 *, u16);
 	int (*get_board_info) (struct qlcnic_adapter *);
+	void (*set_mac_filter_count) (struct qlcnic_adapter *);
 	void (*free_mac_list) (struct qlcnic_adapter *);
 };
 
@@ -1846,6 +1849,11 @@ static inline void qlcnic_free_mac_list(struct qlcnic_adapter *adapter)
 	return adapter->ahw->hw_ops->free_mac_list(adapter);
 }
 
+static inline void qlcnic_set_mac_filter_count(struct qlcnic_adapter *adapter)
+{
+	adapter->ahw->hw_ops->set_mac_filter_count(adapter);
+}
+
 static inline void qlcnic_dev_request_reset(struct qlcnic_adapter *adapter,
 					    u32 key)
 {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 88e2e23..ab66410 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -172,6 +172,7 @@ static struct qlcnic_hardware_ops qlcnic_83xx_hw_ops = {
 	.config_promisc_mode		= qlcnic_83xx_nic_set_promisc,
 	.change_l2_filter		= qlcnic_83xx_change_l2_filter,
 	.get_board_info			= qlcnic_83xx_get_port_info,
+	.set_mac_filter_count		= qlcnic_83xx_set_mac_filter_count,
 	.free_mac_list			= qlcnic_82xx_free_mac_list,
 };
 
@@ -609,6 +610,22 @@ int qlcnic_83xx_get_port_info(struct qlcnic_adapter *adapter)
 	return status;
 }
 
+void qlcnic_83xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	u16 act_pci_fn = ahw->act_pci_func;
+	u16 count;
+
+	ahw->max_mc_count = QLC_83XX_MAX_MC_COUNT;
+	if (act_pci_fn <= 2)
+		count = (QLC_83XX_MAX_UC_COUNT - QLC_83XX_MAX_MC_COUNT) /
+			 act_pci_fn;
+	else
+		count = (QLC_83XX_LB_MAX_FILTERS - QLC_83XX_MAX_MC_COUNT) /
+			 act_pci_fn;
+	ahw->max_uc_count = count;
+}
+
 void qlcnic_83xx_enable_mbx_intrpt(struct qlcnic_adapter *adapter)
 {
 	u32 val;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 1bfe283..e821ee4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -393,6 +393,8 @@ enum qlcnic_83xx_states {
 #define QLC_83XX_LB_MAX_FILTERS			2048
 #define QLC_83XX_LB_BUCKET_SIZE			256
 #define QLC_83XX_MINIMUM_VECTOR			3
+#define QLC_83XX_MAX_MC_COUNT			38
+#define QLC_83XX_MAX_UC_COUNT			4096
 
 #define QLC_83XX_GET_FUNC_MODE_FROM_NPAR_INFO(val)	(val & 0x80000000)
 #define QLC_83XX_GET_LRO_CAPABILITY(val)		(val & 0x20)
@@ -624,4 +626,5 @@ u32 qlcnic_83xx_mac_rcode(struct qlcnic_adapter *);
 u32 qlcnic_83xx_mbx_poll(struct qlcnic_adapter *, u32 *);
 void qlcnic_83xx_enable_mbx_poll(struct qlcnic_adapter *);
 void qlcnic_83xx_disable_mbx_poll(struct qlcnic_adapter *);
+void qlcnic_83xx_set_mac_filter_count(struct qlcnic_adapter *);
 #endif
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
index c0f0c0d..d262211 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
@@ -672,6 +672,7 @@ enum {
 #define QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT	10
 
 #define QLCNIC_MAX_MC_COUNT		38
+#define QLCNIC_MAX_UC_COUNT		512
 #define QLCNIC_WATCHDOG_TIMEOUTVALUE	5
 
 #define	ISR_MSI_INT_TRIGGER(FUNC) (QLCNIC_PCIX_PS_REG(PCIX_MSI_F(FUNC)))
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index 218978d..e7f305d 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -499,6 +499,7 @@ int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, const u8 *addr, u16 vlan)
 void __qlcnic_set_multi(struct net_device *netdev, u16 vlan)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	struct netdev_hw_addr *ha;
 	static const u8 bcast_addr[ETH_ALEN] = {
 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff
@@ -515,25 +516,30 @@ void __qlcnic_set_multi(struct net_device *netdev, u16 vlan)
 	if (netdev->flags & IFF_PROMISC) {
 		if (!(adapter->flags & QLCNIC_PROMISC_DISABLED))
 			mode = VPORT_MISS_MODE_ACCEPT_ALL;
-		goto send_fw_cmd;
-	}
-
-	if ((netdev->flags & IFF_ALLMULTI) ||
-	    (netdev_mc_count(netdev) > adapter->ahw->max_mc_count)) {
-		mode = VPORT_MISS_MODE_ACCEPT_MULTI;
-		goto send_fw_cmd;
+	} else if (netdev->flags & IFF_ALLMULTI) {
+		if (netdev_mc_count(netdev) > ahw->max_mc_count) {
+			mode = VPORT_MISS_MODE_ACCEPT_MULTI;
+		} else if (!netdev_mc_empty(netdev) &&
+			   !qlcnic_sriov_vf_check(adapter)) {
+				netdev_for_each_mc_addr(ha, netdev)
+					qlcnic_nic_add_mac(adapter, ha->addr,
+							   vlan);
+		}
+		if (mode != VPORT_MISS_MODE_ACCEPT_MULTI &&
+		    qlcnic_sriov_vf_check(adapter))
+			qlcnic_vf_add_mc_list(netdev, vlan);
 	}
 
-	if (!netdev_mc_empty(netdev) && !qlcnic_sriov_vf_check(adapter)) {
-		netdev_for_each_mc_addr(ha, netdev) {
+	/* configure unicast MAC address, if there is not sufficient space
+	 * to store all the unicast addresses then enable promiscuous mode
+	 */
+	if (netdev_uc_count(netdev) > ahw->max_uc_count) {
+		mode = VPORT_MISS_MODE_ACCEPT_ALL;
+	} else if (!netdev_uc_empty(netdev)) {
+		netdev_for_each_uc_addr(ha, netdev)
 			qlcnic_nic_add_mac(adapter, ha->addr, vlan);
-		}
 	}
 
-	if (qlcnic_sriov_vf_check(adapter))
-		qlcnic_vf_add_mc_list(netdev, vlan);
-
-send_fw_cmd:
 	if (!qlcnic_sriov_vf_check(adapter)) {
 		if (mode == VPORT_MISS_MODE_ACCEPT_ALL &&
 		    !adapter->fdb_mac_learn) {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 0ae8835..8e1453a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -360,12 +360,15 @@ static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 		return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 
 	if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
-		if (is_unicast_ether_addr(addr))
-			err = qlcnic_nic_del_mac(adapter, addr);
-		else if (is_multicast_ether_addr(addr))
+		if (is_unicast_ether_addr(addr)) {
+			err = dev_uc_del(netdev, addr);
+			if (!err)
+				err = qlcnic_nic_del_mac(adapter, addr);
+		} else if (is_multicast_ether_addr(addr)) {
 			err = dev_mc_del(netdev, addr);
-		else
+		} else {
 			err =  -EINVAL;
+		}
 	}
 	return err;
 }
@@ -388,12 +391,16 @@ static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 	if (ether_addr_equal(addr, adapter->mac_addr))
 		return err;
 
-	if (is_unicast_ether_addr(addr))
-		err = qlcnic_nic_add_mac(adapter, addr, 0);
-	else if (is_multicast_ether_addr(addr))
+	if (is_unicast_ether_addr(addr)) {
+		if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
+			err = dev_uc_add_excl(netdev, addr);
+		else
+			err = -ENOMEM;
+	} else if (is_multicast_ether_addr(addr)) {
 		err = dev_mc_add_excl(netdev, addr);
-	else
+	} else {
 		err = -EINVAL;
+	}
 
 	return err;
 }
@@ -505,6 +512,7 @@ static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 	.config_promisc_mode		= qlcnic_82xx_nic_set_promisc,
 	.change_l2_filter		= qlcnic_82xx_change_filter,
 	.get_board_info			= qlcnic_82xx_get_board_info,
+	.set_mac_filter_count		= qlcnic_82xx_set_mac_filter_count,
 	.free_mac_list			= qlcnic_82xx_free_mac_list,
 };
 
@@ -1829,6 +1837,22 @@ qlcnic_reset_context(struct qlcnic_adapter *adapter)
 	return err;
 }
 
+void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	u16 act_pci_fn = ahw->act_pci_func;
+	u16 count;
+
+	ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
+	if (act_pci_fn <= 2)
+		count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
+			 act_pci_fn;
+	else
+		count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
+			 act_pci_fn;
+	ahw->max_uc_count = count;
+}
+
 int
 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
 		    int pci_using_dac)
@@ -1838,7 +1862,7 @@ qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
 
 	adapter->rx_csum = 1;
 	adapter->ahw->mc_enabled = 0;
-	adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
+	qlcnic_set_mac_filter_count(adapter);
 
 	netdev->netdev_ops	   = &qlcnic_netdev_ops;
 	netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
@@ -1876,6 +1900,7 @@ qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
 		netdev->features |= NETIF_F_LRO;
 
 	netdev->hw_features = netdev->features;
+	netdev->priv_flags |= IFF_UNICAST_FLT;
 	netdev->irq = adapter->msix_entries[0].vector;
 
 	err = register_netdev(netdev);
-- 
cgit v0.10.2


From 2c4a787847c243b725a7bac510d3ebaa35c90fab Mon Sep 17 00:00:00 2001
From: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Date: Sat, 22 Jun 2013 04:12:02 -0400
Subject: qlcnic: Minimize sleep duration within loopback diagnostic test.

o Minimize sleep duration and check for adapter status.
o Exit from loopback test if adapter reset is detected.

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index ab66410..1c463dd 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -1676,13 +1676,19 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 
 	/* Poll for link up event before running traffic */
 	do {
-		msleep(500);
+		msleep(QLC_83XX_LB_MSLEEP_COUNT);
 		if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
 			qlcnic_83xx_process_aen(adapter);
 
-		if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
-			dev_info(&adapter->pdev->dev,
-				 "Firmware didn't sent link up event to loopback request\n");
+		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
+			netdev_info(netdev,
+				    "Device is resetting, free LB test resources\n");
+			ret = -EIO;
+			goto free_diag_res;
+		}
+		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
+			netdev_info(netdev,
+				    "Firmware didn't sent link up event to loopback request\n");
 			ret = -QLCNIC_FW_NOT_RESPOND;
 			qlcnic_83xx_clear_lb_mode(adapter, mode);
 			goto free_diag_res;
@@ -1711,6 +1717,7 @@ fail_diag_alloc:
 int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 {
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct net_device *netdev = adapter->netdev;
 	int status = 0, loop = 0;
 	u32 config;
 
@@ -1728,9 +1735,9 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 
 	status = qlcnic_83xx_set_port_config(adapter);
 	if (status) {
-		dev_err(&adapter->pdev->dev,
-			"Failed to Set Loopback Mode = 0x%x.\n",
-			ahw->port_config);
+		netdev_err(netdev,
+			   "Failed to Set Loopback Mode = 0x%x.\n",
+			   ahw->port_config);
 		ahw->port_config = config;
 		clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 		return status;
@@ -1738,13 +1745,19 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 
 	/* Wait for Link and IDC Completion AEN */
 	do {
-		msleep(300);
+		msleep(QLC_83XX_LB_MSLEEP_COUNT);
 		if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
 			qlcnic_83xx_process_aen(adapter);
 
-		if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
-			dev_err(&adapter->pdev->dev,
-				"FW did not generate IDC completion AEN\n");
+		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
+			netdev_info(netdev,
+				    "Device is resetting, free LB test resources\n");
+			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
+			return -EIO;
+		}
+		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
+			netdev_err(netdev,
+				   "Did not receive IDC completion AEN\n");
 			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 			qlcnic_83xx_clear_lb_mode(adapter, mode);
 			return -EIO;
@@ -1759,6 +1772,7 @@ int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 {
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct net_device *netdev = adapter->netdev;
 	int status = 0, loop = 0;
 	u32 config = ahw->port_config;
 
@@ -1770,9 +1784,9 @@ int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 
 	status = qlcnic_83xx_set_port_config(adapter);
 	if (status) {
-		dev_err(&adapter->pdev->dev,
-			"Failed to Clear Loopback Mode = 0x%x.\n",
-			ahw->port_config);
+		netdev_err(netdev,
+			   "Failed to Clear Loopback Mode = 0x%x.\n",
+			   ahw->port_config);
 		ahw->port_config = config;
 		clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 		return status;
@@ -1780,13 +1794,20 @@ int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 
 	/* Wait for Link and IDC Completion AEN */
 	do {
-		msleep(300);
+		msleep(QLC_83XX_LB_MSLEEP_COUNT);
 		if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
 			qlcnic_83xx_process_aen(adapter);
 
-		if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
-			dev_err(&adapter->pdev->dev,
-				"Firmware didn't sent IDC completion AEN\n");
+		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
+			netdev_info(netdev,
+				    "Device is resetting, free LB test resources\n");
+			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
+			return -EIO;
+		}
+
+		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
+			netdev_err(netdev,
+				   "Did not receive IDC completion AEN\n");
 			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 			return -EIO;
 		}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index e821ee4..e356ee8 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -36,7 +36,8 @@
 #define QLC_83XX_MAX_DRV_LOCK_RECOVERY_ATTEMPT		3
 #define QLC_83XX_DRV_LOCK_RECOVERY_DELAY		200
 #define QLC_83XX_DRV_LOCK_RECOVERY_STATUS_MASK		0x3
-
+#define QLC_83XX_LB_WAIT_COUNT				250
+#define QLC_83XX_LB_MSLEEP_COUNT			20
 #define QLC_83XX_NO_NIC_RESOURCE	0x5
 #define QLC_83XX_MAC_PRESENT		0xC
 #define QLC_83XX_MAC_ABSENT		0xD
-- 
cgit v0.10.2


From 9baf1aa9c4c7a7fe52886634c3646fabaa48aa39 Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Sat, 22 Jun 2013 04:12:03 -0400
Subject: qlcnic: Add support for PEX DMA method to read memory section of
 adapter dump

This patch adds support to read memory section of adapter
dump using PEX DMA method. This method significantly improves
total adapter dump collection time.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 28a1276..cc2c2c1 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -393,6 +393,9 @@ struct qlcnic_fw_dump {
 	u32	size;	/* total size of the dump */
 	void	*data;	/* dump data area */
 	struct	qlcnic_dump_template_hdr *tmpl_hdr;
+	dma_addr_t phys_addr;
+	void	*dma_buffer;
+	bool	use_pex_dma;
 };
 
 /*
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
index 4b9bab1..ab8a674 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
@@ -15,6 +15,7 @@
 #define QLC_83XX_MINIDUMP_FLASH		0x520000
 #define QLC_83XX_OCM_INDEX			3
 #define QLC_83XX_PCI_INDEX			0
+#define QLC_83XX_DMA_ENGINE_INDEX		8
 
 static const u32 qlcnic_ms_read_data[] = {
 	0x410000A8, 0x410000AC, 0x410000B8, 0x410000BC
@@ -32,6 +33,16 @@ static const u32 qlcnic_ms_read_data[] = {
 
 #define QLCNIC_DUMP_MASK_MAX	0xff
 
+struct qlcnic_pex_dma_descriptor {
+	u32	read_data_size;
+	u32	dma_desc_cmd;
+	u32	src_addr_low;
+	u32	src_addr_high;
+	u32	dma_bus_addr_low;
+	u32	dma_bus_addr_high;
+	u32	rsvd[6];
+} __packed;
+
 struct qlcnic_common_entry_hdr {
 	u32     type;
 	u32     offset;
@@ -90,7 +101,10 @@ struct __ocm {
 } __packed;
 
 struct __mem {
-	u8	rsvd[24];
+	u32	desc_card_addr;
+	u32	dma_desc_cmd;
+	u32	start_dma_cmd;
+	u32	rsvd[3];
 	u32	addr;
 	u32	size;
 } __packed;
@@ -466,12 +480,12 @@ skip_poll:
 	return l2->no_ops * l2->read_addr_num * sizeof(u32);
 }
 
-static u32 qlcnic_read_memory(struct qlcnic_adapter *adapter,
-			      struct qlcnic_dump_entry *entry, __le32 *buffer)
+static u32 qlcnic_read_memory_test_agent(struct qlcnic_adapter *adapter,
+					 struct __mem *mem, __le32 *buffer,
+					 int *ret)
 {
-	u32 addr, data, test, ret = 0;
+	u32 addr, data, test;
 	int i, reg_read;
-	struct __mem *mem = &entry->region.mem;
 
 	reg_read = mem->size;
 	addr = mem->addr;
@@ -480,7 +494,8 @@ static u32 qlcnic_read_memory(struct qlcnic_adapter *adapter,
 		dev_info(&adapter->pdev->dev,
 			 "Unaligned memory addr:0x%x size:0x%x\n",
 			 addr, reg_read);
-		return -EINVAL;
+		*ret = -EINVAL;
+		return 0;
 	}
 
 	mutex_lock(&adapter->ahw->mem_lock);
@@ -499,7 +514,7 @@ static u32 qlcnic_read_memory(struct qlcnic_adapter *adapter,
 			if (printk_ratelimit()) {
 				dev_err(&adapter->pdev->dev,
 					"failed to read through agent\n");
-				ret = -EINVAL;
+				*ret = -EIO;
 				goto out;
 			}
 		}
@@ -516,6 +531,181 @@ out:
 	return mem->size;
 }
 
+/* DMA register base address */
+#define QLC_DMA_REG_BASE_ADDR(dma_no)	(0x77320000 + (dma_no * 0x10000))
+
+/* DMA register offsets w.r.t base address */
+#define QLC_DMA_CMD_BUFF_ADDR_LOW	0
+#define QLC_DMA_CMD_BUFF_ADDR_HI	4
+#define QLC_DMA_CMD_STATUS_CTRL		8
+
+#define QLC_PEX_DMA_READ_SIZE		(PAGE_SIZE * 16)
+
+static int qlcnic_start_pex_dma(struct qlcnic_adapter *adapter,
+				struct __mem *mem)
+{
+	struct qlcnic_dump_template_hdr *tmpl_hdr;
+	struct device *dev = &adapter->pdev->dev;
+	u32 dma_no, dma_base_addr, temp_addr;
+	int i, ret, dma_sts;
+
+	tmpl_hdr = adapter->ahw->fw_dump.tmpl_hdr;
+	dma_no = tmpl_hdr->saved_state[QLC_83XX_DMA_ENGINE_INDEX];
+	dma_base_addr = QLC_DMA_REG_BASE_ADDR(dma_no);
+
+	temp_addr = dma_base_addr + QLC_DMA_CMD_BUFF_ADDR_LOW;
+	ret = qlcnic_83xx_wrt_reg_indirect(adapter, temp_addr,
+					   mem->desc_card_addr);
+	if (ret)
+		return ret;
+
+	temp_addr = dma_base_addr + QLC_DMA_CMD_BUFF_ADDR_HI;
+	ret = qlcnic_83xx_wrt_reg_indirect(adapter, temp_addr, 0);
+	if (ret)
+		return ret;
+
+	temp_addr = dma_base_addr + QLC_DMA_CMD_STATUS_CTRL;
+	ret = qlcnic_83xx_wrt_reg_indirect(adapter, temp_addr,
+					   mem->start_dma_cmd);
+	if (ret)
+		return ret;
+
+	/* Wait for DMA to complete */
+	temp_addr = dma_base_addr + QLC_DMA_CMD_STATUS_CTRL;
+	for (i = 0; i < 400; i++) {
+		dma_sts = qlcnic_ind_rd(adapter, temp_addr);
+
+		if (dma_sts & BIT_1)
+			usleep_range(250, 500);
+		else
+			break;
+	}
+
+	if (i >= 400) {
+		dev_info(dev, "PEX DMA operation timed out");
+		ret = -EIO;
+	}
+
+	return ret;
+}
+
+static u32 qlcnic_read_memory_pexdma(struct qlcnic_adapter *adapter,
+				     struct __mem *mem,
+				     __le32 *buffer, int *ret)
+{
+	struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
+	u32 temp, dma_base_addr, size = 0, read_size = 0;
+	struct qlcnic_pex_dma_descriptor *dma_descr;
+	struct qlcnic_dump_template_hdr *tmpl_hdr;
+	struct device *dev = &adapter->pdev->dev;
+	dma_addr_t dma_phys_addr;
+	void *dma_buffer;
+
+	tmpl_hdr = fw_dump->tmpl_hdr;
+
+	/* Check if DMA engine is available */
+	temp = tmpl_hdr->saved_state[QLC_83XX_DMA_ENGINE_INDEX];
+	dma_base_addr = QLC_DMA_REG_BASE_ADDR(temp);
+	temp = qlcnic_ind_rd(adapter,
+			     dma_base_addr + QLC_DMA_CMD_STATUS_CTRL);
+
+	if (!(temp & BIT_31)) {
+		dev_info(dev, "%s: DMA engine is not available\n", __func__);
+		*ret = -EIO;
+		return 0;
+	}
+
+	/* Create DMA descriptor */
+	dma_descr = kzalloc(sizeof(struct qlcnic_pex_dma_descriptor),
+			    GFP_KERNEL);
+	if (!dma_descr) {
+		*ret = -ENOMEM;
+		return 0;
+	}
+
+	/* dma_desc_cmd  0:15  = 0
+	 * dma_desc_cmd 16:19  = mem->dma_desc_cmd 0:3
+	 * dma_desc_cmd 20:23  = pci function number
+	 * dma_desc_cmd 24:31  = mem->dma_desc_cmd 8:15
+	 */
+	dma_phys_addr = fw_dump->phys_addr;
+	dma_buffer = fw_dump->dma_buffer;
+	temp = 0;
+	temp = mem->dma_desc_cmd & 0xff0f;
+	temp |= (adapter->ahw->pci_func & 0xf) << 4;
+	dma_descr->dma_desc_cmd = (temp << 16) & 0xffff0000;
+	dma_descr->dma_bus_addr_low = LSD(dma_phys_addr);
+	dma_descr->dma_bus_addr_high = MSD(dma_phys_addr);
+	dma_descr->src_addr_high = 0;
+
+	/* Collect memory dump using multiple DMA operations if required */
+	while (read_size < mem->size) {
+		if (mem->size - read_size >= QLC_PEX_DMA_READ_SIZE)
+			size = QLC_PEX_DMA_READ_SIZE;
+		else
+			size = mem->size - read_size;
+
+		dma_descr->src_addr_low = mem->addr + read_size;
+		dma_descr->read_data_size = size;
+
+		/* Write DMA descriptor to MS memory*/
+		temp = sizeof(struct qlcnic_pex_dma_descriptor) / 16;
+		*ret = qlcnic_83xx_ms_mem_write128(adapter, mem->desc_card_addr,
+						   (u32 *)dma_descr, temp);
+		if (*ret) {
+			dev_info(dev, "Failed to write DMA descriptor to MS memory at address 0x%x\n",
+				 mem->desc_card_addr);
+			goto free_dma_descr;
+		}
+
+		*ret = qlcnic_start_pex_dma(adapter, mem);
+		if (*ret) {
+			dev_info(dev, "Failed to start PEX DMA operation\n");
+			goto free_dma_descr;
+		}
+
+		memcpy(buffer, dma_buffer, size);
+		buffer += size / 4;
+		read_size += size;
+	}
+
+free_dma_descr:
+	kfree(dma_descr);
+
+	return read_size;
+}
+
+static u32 qlcnic_read_memory(struct qlcnic_adapter *adapter,
+			      struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+	struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
+	struct device *dev = &adapter->pdev->dev;
+	struct __mem *mem = &entry->region.mem;
+	u32 data_size;
+	int ret = 0;
+
+	if (fw_dump->use_pex_dma) {
+		data_size = qlcnic_read_memory_pexdma(adapter, mem, buffer,
+						      &ret);
+		if (ret)
+			dev_info(dev,
+				 "Failed to read memory dump using PEX DMA: mask[0x%x]\n",
+				 entry->hdr.mask);
+		else
+			return data_size;
+	}
+
+	data_size = qlcnic_read_memory_test_agent(adapter, mem, buffer, &ret);
+	if (ret) {
+		dev_info(dev,
+			 "Failed to read memory dump using test agent method: mask[0x%x]\n",
+			 entry->hdr.mask);
+		return 0;
+	} else {
+		return data_size;
+	}
+}
+
 static u32 qlcnic_dump_nop(struct qlcnic_adapter *adapter,
 			   struct qlcnic_dump_entry *entry, __le32 *buffer)
 {
@@ -893,6 +1083,12 @@ flash_temp:
 
 	tmpl_hdr = ahw->fw_dump.tmpl_hdr;
 	tmpl_hdr->drv_cap_mask = QLCNIC_DUMP_MASK_DEF;
+
+	if ((tmpl_hdr->version & 0xffffff) >= 0x20001)
+		ahw->fw_dump.use_pex_dma = true;
+	else
+		ahw->fw_dump.use_pex_dma = false;
+
 	ahw->fw_dump.enable = 1;
 
 	return 0;
@@ -910,7 +1106,9 @@ int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
 	struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
 	struct qlcnic_dump_template_hdr *tmpl_hdr = fw_dump->tmpl_hdr;
 	static const struct qlcnic_dump_operations *fw_dump_ops;
+	struct device *dev = &adapter->pdev->dev;
 	struct qlcnic_hardware_context *ahw;
+	void *temp_buffer;
 
 	ahw = adapter->ahw;
 
@@ -944,6 +1142,16 @@ int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
 	tmpl_hdr->sys_info[0] = QLCNIC_DRIVER_VERSION;
 	tmpl_hdr->sys_info[1] = adapter->fw_version;
 
+	if (fw_dump->use_pex_dma) {
+		temp_buffer = dma_alloc_coherent(dev, QLC_PEX_DMA_READ_SIZE,
+						 &fw_dump->phys_addr,
+						 GFP_KERNEL);
+		if (!temp_buffer)
+			fw_dump->use_pex_dma = false;
+		else
+			fw_dump->dma_buffer = temp_buffer;
+	}
+
 	if (qlcnic_82xx_check(adapter)) {
 		ops_cnt = ARRAY_SIZE(qlcnic_fw_dump_ops);
 		fw_dump_ops = qlcnic_fw_dump_ops;
@@ -1002,6 +1210,9 @@ int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
 		return 0;
 	}
 error:
+	if (fw_dump->use_pex_dma)
+		dma_free_coherent(dev, QLC_PEX_DMA_READ_SIZE,
+				  fw_dump->dma_buffer, fw_dump->phys_addr);
 	vfree(fw_dump->data);
 	return -EINVAL;
 }
-- 
cgit v0.10.2


From db131786445d55c418d27cb2341b86cf16807d9d Mon Sep 17 00:00:00 2001
From: Pratik Pujar <pratik.pujar@qlogic.com>
Date: Sat, 22 Jun 2013 04:12:04 -0400
Subject: qlcnic: Cleanup of structure qlcnic_hardware_context

Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index cc2c2c1..5694d599 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -449,7 +449,7 @@ struct qlcnic_hardware_context {
 	u16 max_pci_func;
 
 	u32 capabilities;
-	u32 capabilities2;
+	u32 extra_capability[3];
 	u32 temp;
 	u32 int_vec_bit;
 	u32 fw_hal_version;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index e7f305d..9fcbfd4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -786,7 +786,8 @@ int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
 	word = 0;
 	if (enable) {
 		word = QLCNIC_ENABLE_IPV4_LRO | QLCNIC_NO_DEST_IPV4_CHECK;
-		if (adapter->ahw->capabilities2 & QLCNIC_FW_CAP2_HW_LRO_IPV6)
+		if (adapter->ahw->extra_capability[0] &
+		    QLCNIC_FW_CAP2_HW_LRO_IPV6)
 			word |= QLCNIC_ENABLE_IPV6_LRO |
 				QLCNIC_NO_DEST_IPV6_CHECK;
 	}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 8e1453a..3963e78 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -994,7 +994,7 @@ qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 	if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 		u32 temp;
 		temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
-		adapter->ahw->capabilities2 = temp;
+		adapter->ahw->extra_capability[0] = temp;
 	}
 	adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 	adapter->ahw->max_mtu = nic_info.max_mtu;
@@ -1486,7 +1486,7 @@ static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
 	u32 capab = 0;
 
 	if (qlcnic_82xx_check(adapter)) {
-		if (adapter->ahw->capabilities2 &
+		if (adapter->ahw->extra_capability[0] &
 		    QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
 			adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
 	} else {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index 7ec030a..10ed82b 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -168,7 +168,7 @@ static int qlcnic_82xx_store_beacon(struct qlcnic_adapter *adapter,
 	if (err)
 		return err;
 
-	if ((ahw->capabilities2 & QLCNIC_FW_CAPABILITY_2_BEACON)) {
+	if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_BEACON) {
 		err = qlcnic_get_beacon_state(adapter, &h_beacon_state);
 		if (!err) {
 			dev_info(&adapter->pdev->dev,
-- 
cgit v0.10.2


From 8af3f33db05c6d0146ad14905145a5c923770856 Mon Sep 17 00:00:00 2001
From: Pratik Pujar <pratik.pujar@qlogic.com>
Date: Sat, 22 Jun 2013 04:12:05 -0400
Subject: qlcnic: Add support for 'set driver version' in 83XX

Issue 'set driver version' during driver load and after reset recovery
to notify the driver version to the firmware.

Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 5694d599..955dd85 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -819,7 +819,7 @@ struct qlcnic_mac_list_s {
 
 #define QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG	BIT_2
 #define QLCNIC_FW_CAP2_HW_LRO_IPV6		BIT_3
-#define QLCNIC_FW_CAPABILITY_2_OCBB		BIT_5
+#define QLCNIC_FW_CAPABILITY_SET_DRV_VER	BIT_5
 #define QLCNIC_FW_CAPABILITY_2_BEACON		BIT_7
 
 /* module types */
@@ -1476,7 +1476,7 @@ int qlcnic_nic_del_mac(struct qlcnic_adapter *, const u8 *);
 void qlcnic_82xx_free_mac_list(struct qlcnic_adapter *adapter);
 
 int qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu);
-int qlcnic_fw_cmd_set_drv_version(struct qlcnic_adapter *);
+int qlcnic_fw_cmd_set_drv_version(struct qlcnic_adapter *, u32);
 int qlcnic_change_mtu(struct net_device *netdev, int new_mtu);
 netdev_features_t qlcnic_fix_features(struct net_device *netdev,
 	netdev_features_t features);
@@ -1500,6 +1500,7 @@ int qlcnic_validate_max_rss(struct qlcnic_adapter *, __u32);
 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
 int qlcnic_enable_msix(struct qlcnic_adapter *, u32);
+void qlcnic_set_drv_version(struct qlcnic_adapter *);
 
 /*  eSwitch management functions */
 int qlcnic_config_switch_port(struct qlcnic_adapter *,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 1c463dd..1938812 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -63,6 +63,7 @@ static const struct qlcnic_mailbox_metadata qlcnic_83xx_mbx_tbl[] = {
 	{QLCNIC_CMD_STOP_NIC_FUNC, 2, 1},
 	{QLCNIC_CMD_SET_LED_CONFIG, 5, 1},
 	{QLCNIC_CMD_GET_LED_CONFIG, 1, 5},
+	{QLCNIC_CMD_83XX_SET_DRV_VER, 4, 1},
 	{QLCNIC_CMD_ADD_RCV_RINGS, 130, 26},
 	{QLCNIC_CMD_CONFIG_VPORT, 4, 4},
 	{QLCNIC_CMD_BC_EVENT_SETUP, 2, 1},
@@ -2186,16 +2187,17 @@ int qlcnic_83xx_get_nic_info(struct qlcnic_adapter *adapter,
 	u32 temp;
 	u8 op = 0;
 	struct qlcnic_cmd_args cmd;
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
 
 	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
 	if (err)
 		return err;
 
-	if (func_id != adapter->ahw->pci_func) {
+	if (func_id != ahw->pci_func) {
 		temp = func_id << 16;
 		cmd.req.arg[1] = op | BIT_31 | temp;
 	} else {
-		cmd.req.arg[1] = adapter->ahw->pci_func << 16;
+		cmd.req.arg[1] = ahw->pci_func << 16;
 	}
 	err = qlcnic_issue_cmd(adapter, &cmd);
 	if (err) {
@@ -2222,6 +2224,9 @@ int qlcnic_83xx_get_nic_info(struct qlcnic_adapter *adapter,
 		temp = (cmd.rsp.arg[8] & 0x7FFE0000) >> 17;
 		npar_info->max_linkspeed_reg_offset = temp;
 	}
+	if (npar_info->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS)
+		memcpy(ahw->extra_capability, &cmd.rsp.arg[16],
+		       sizeof(ahw->extra_capability));
 
 out:
 	qlcnic_free_mbx_args(&cmd);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index f073c08..e2d04d5 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -629,6 +629,7 @@ static int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
 		return -EIO;
 	}
 
+	qlcnic_set_drv_version(adapter);
 	qlcnic_83xx_idc_attach_driver(adapter);
 
 	return 0;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index 72593a1..0d54fce 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -36,7 +36,7 @@ static const struct qlcnic_mailbox_metadata qlcnic_mbx_tbl[] = {
 	{QLCNIC_CMD_CONFIG_PORT, 4, 1},
 	{QLCNIC_CMD_TEMP_SIZE, 4, 4},
 	{QLCNIC_CMD_GET_TEMP_HDR, 4, 1},
-	{QLCNIC_CMD_SET_DRV_VER, 4, 1},
+	{QLCNIC_CMD_82XX_SET_DRV_VER, 4, 1},
 	{QLCNIC_CMD_GET_LED_STATUS, 4, 2},
 };
 
@@ -182,7 +182,7 @@ int qlcnic_82xx_issue_cmd(struct qlcnic_adapter *adapter,
 	return cmd->rsp.arg[0];
 }
 
-int qlcnic_fw_cmd_set_drv_version(struct qlcnic_adapter *adapter)
+int qlcnic_fw_cmd_set_drv_version(struct qlcnic_adapter *adapter, u32 fw_cmd)
 {
 	struct qlcnic_cmd_args cmd;
 	u32 arg1, arg2, arg3;
@@ -194,7 +194,7 @@ int qlcnic_fw_cmd_set_drv_version(struct qlcnic_adapter *adapter)
 		 _QLCNIC_LINUX_MAJOR, _QLCNIC_LINUX_MINOR,
 		 _QLCNIC_LINUX_SUBVERSION);
 
-	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_DRV_VER);
+	err = qlcnic_alloc_mbx_args(&cmd, adapter, fw_cmd);
 	if (err)
 		return err;
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
index 812fd07..b190c84 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
@@ -86,7 +86,7 @@ enum qlcnic_regs {
 #define QLCNIC_CMD_BC_EVENT_SETUP		0x31
 #define	QLCNIC_CMD_CONFIG_VPORT			0x32
 #define QLCNIC_CMD_GET_MAC_STATS		0x37
-#define QLCNIC_CMD_SET_DRV_VER			0x38
+#define QLCNIC_CMD_82XX_SET_DRV_VER		0x38
 #define QLCNIC_CMD_GET_LED_STATUS		0x3C
 #define QLCNIC_CMD_CONFIGURE_RSS		0x41
 #define QLCNIC_CMD_CONFIG_INTR_COAL		0x43
@@ -103,6 +103,7 @@ enum qlcnic_regs {
 #define QLCNIC_CMD_GET_LINK_STATUS		0x68
 #define QLCNIC_CMD_SET_LED_CONFIG		0x69
 #define QLCNIC_CMD_GET_LED_CONFIG		0x6A
+#define QLCNIC_CMD_83XX_SET_DRV_VER		0x6F
 #define QLCNIC_CMD_ADD_RCV_RINGS		0x0B
 
 #define QLCNIC_INTRPT_INTX			1
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 3963e78..0d7a4fd 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -1985,6 +1985,21 @@ int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
 	return 0;
 }
 
+void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	u32 fw_cmd = 0;
+
+	if (qlcnic_82xx_check(adapter))
+		fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
+	else if (qlcnic_83xx_check(adapter))
+		fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
+
+	if ((ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) &&
+	    (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER))
+		qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
+}
+
 static int
 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
@@ -1992,7 +2007,6 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	struct qlcnic_adapter *adapter = NULL;
 	struct qlcnic_hardware_context *ahw;
 	int err, pci_using_dac = -1;
-	u32 capab2;
 	char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
 
 	if (pdev->is_virtfn)
@@ -2147,13 +2161,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (err)
 		goto err_out_disable_mbx_intr;
 
-	if (qlcnic_82xx_check(adapter)) {
-		if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
-			capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
-			if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
-				qlcnic_fw_cmd_set_drv_version(adapter);
-		}
-	}
+	qlcnic_set_drv_version(adapter);
 
 	pci_set_drvdata(pdev, adapter);
 
@@ -3124,6 +3132,7 @@ done:
 	adapter->fw_fail_cnt = 0;
 	adapter->flags &= ~QLCNIC_FW_HANG;
 	clear_bit(__QLCNIC_RESETTING, &adapter->state);
+	qlcnic_set_drv_version(adapter);
 
 	if (!qlcnic_clr_drv_state(adapter))
 		qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
-- 
cgit v0.10.2


From 486a5bc77a4a83d29b72b17fde229e45a2428194 Mon Sep 17 00:00:00 2001
From: Rajesh Borundia <rajesh.borundia@qlogic.com>
Date: Sat, 22 Jun 2013 04:12:06 -0400
Subject: qlcnic: Add support for 83xx suspend and resume.

o Implement shutdown and resume handlers for 83xx.
o Refactor 82xx shutdown and resume handlers.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 955dd85..a89e322 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -1596,6 +1596,8 @@ struct qlcnic_nic_template {
 	void (*napi_del)(struct qlcnic_adapter *);
 	void (*config_ipaddr)(struct qlcnic_adapter *, __be32, int);
 	irqreturn_t (*clear_legacy_intr)(struct qlcnic_adapter *);
+	int (*shutdown)(struct pci_dev *);
+	int (*resume)(struct qlcnic_adapter *);
 };
 
 /* Adapter hardware abstraction */
@@ -1800,6 +1802,18 @@ static inline void qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 	adapter->ahw->hw_ops->napi_enable(adapter);
 }
 
+static inline int __qlcnic_shutdown(struct pci_dev *pdev)
+{
+	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+
+	return adapter->nic_ops->shutdown(pdev);
+}
+
+static inline int __qlcnic_resume(struct qlcnic_adapter *adapter)
+{
+	return adapter->nic_ops->resume(adapter);
+}
+
 static inline void qlcnic_napi_disable(struct qlcnic_adapter *adapter)
 {
 	adapter->ahw->hw_ops->napi_disable(adapter);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 1938812..0913c62 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -186,6 +186,8 @@ static struct qlcnic_nic_template qlcnic_83xx_ops = {
 	.napi_del		= qlcnic_83xx_napi_del,
 	.config_ipaddr		= qlcnic_83xx_config_ipaddr,
 	.clear_legacy_intr	= qlcnic_83xx_clear_legacy_intr,
+	.shutdown		= qlcnic_83xx_shutdown,
+	.resume			= qlcnic_83xx_resume,
 };
 
 void qlcnic_83xx_register_map(struct qlcnic_hardware_context *ahw)
@@ -3393,3 +3395,54 @@ int qlcnic_83xx_flash_test(struct qlcnic_adapter *adapter)
 	}
 	return 0;
 }
+
+int qlcnic_83xx_shutdown(struct pci_dev *pdev)
+{
+	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+	struct net_device *netdev = adapter->netdev;
+	int retval;
+
+	netif_device_detach(netdev);
+	qlcnic_cancel_idc_work(adapter);
+
+	if (netif_running(netdev))
+		qlcnic_down(adapter, netdev);
+
+	qlcnic_83xx_disable_mbx_intr(adapter);
+	cancel_delayed_work_sync(&adapter->idc_aen_work);
+
+	retval = pci_save_state(pdev);
+	if (retval)
+		return retval;
+
+	return 0;
+}
+
+int qlcnic_83xx_resume(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct qlc_83xx_idc *idc = &ahw->idc;
+	int err = 0;
+
+	err = qlcnic_83xx_idc_init(adapter);
+	if (err)
+		return err;
+
+	if (ahw->nic_mode == QLC_83XX_VIRTUAL_NIC_MODE) {
+		if (ahw->op_mode == QLCNIC_MGMT_FUNC) {
+			qlcnic_83xx_set_vnic_opmode(adapter);
+		} else {
+			err = qlcnic_83xx_check_vnic_state(adapter);
+			if (err)
+				return err;
+		}
+	}
+
+	err = qlcnic_83xx_idc_reattach_driver(adapter);
+	if (err)
+		return err;
+
+	qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
+			     idc->delay);
+	return err;
+}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index e356ee8..2548d14 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -628,4 +628,10 @@ u32 qlcnic_83xx_mbx_poll(struct qlcnic_adapter *, u32 *);
 void qlcnic_83xx_enable_mbx_poll(struct qlcnic_adapter *);
 void qlcnic_83xx_disable_mbx_poll(struct qlcnic_adapter *);
 void qlcnic_83xx_set_mac_filter_count(struct qlcnic_adapter *);
+int qlcnic_83xx_shutdown(struct pci_dev *);
+int qlcnic_83xx_resume(struct qlcnic_adapter *);
+int qlcnic_83xx_idc_init(struct qlcnic_adapter *);
+int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *);
+int qlcnic_83xx_set_vnic_opmode(struct qlcnic_adapter *);
+int qlcnic_83xx_check_vnic_state(struct qlcnic_adapter *);
 #endif
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index e2d04d5..f41dfab 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -606,7 +606,7 @@ static int qlcnic_83xx_idc_check_fan_failure(struct qlcnic_adapter *adapter)
 	return 0;
 }
 
-static int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
+int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
 {
 	int err;
 
@@ -1135,7 +1135,7 @@ qlcnic_83xx_idc_first_to_load_function_handler(struct qlcnic_adapter *adapter)
 	return 0;
 }
 
-static int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter)
+int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter)
 {
 	int ret = -EIO;
 
@@ -1554,9 +1554,18 @@ static int qlcnic_83xx_reset_template_checksum(struct qlcnic_adapter *p_dev)
 
 int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *p_dev)
 {
-	u8 *p_buff;
-	u32 addr, count;
 	struct qlcnic_hardware_context *ahw = p_dev->ahw;
+	u32 addr, count, prev_ver, curr_ver;
+	u8 *p_buff;
+
+	if (ahw->reset.buff != NULL) {
+		prev_ver = p_dev->fw_version;
+		curr_ver = qlcnic_83xx_get_fw_version(p_dev);
+		if (curr_ver > prev_ver)
+			kfree(ahw->reset.buff);
+		else
+			return 0;
+	}
 
 	ahw->reset.seq_error = 0;
 	ahw->reset.buff = kzalloc(QLC_83XX_RESTART_TEMPLATE_SIZE, GFP_KERNEL);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
index b5054e1..599d1fd 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
@@ -39,7 +39,7 @@ int qlcnic_83xx_disable_vnic_mode(struct qlcnic_adapter *adapter, int lock)
 	return 0;
 }
 
-static int qlcnic_83xx_set_vnic_opmode(struct qlcnic_adapter *adapter)
+int qlcnic_83xx_set_vnic_opmode(struct qlcnic_adapter *adapter)
 {
 	u8 id;
 	int ret = -EBUSY;
@@ -218,3 +218,24 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
 
 	return 0;
 }
+
+int qlcnic_83xx_check_vnic_state(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct qlc_83xx_idc *idc = &ahw->idc;
+	u32 state;
+
+	state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
+	while (state != QLCNIC_DEV_NPAR_OPER && idc->vnic_wait_limit--) {
+		msleep(1000);
+		state = QLCRDX(ahw, QLC_83XX_VNIC_STATE);
+	}
+
+	if (!idc->vnic_wait_limit) {
+		dev_err(&adapter->pdev->dev,
+			"vNIC mode not operational, state check timed out.\n");
+		return -EIO;
+	}
+
+	return 0;
+}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index 9fcbfd4..5b5d2ed 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -1577,3 +1577,54 @@ void qlcnic_82xx_api_unlock(struct qlcnic_adapter *adapter)
 {
 	qlcnic_pcie_sem_unlock(adapter, 5);
 }
+
+int qlcnic_82xx_shutdown(struct pci_dev *pdev)
+{
+	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+	struct net_device *netdev = adapter->netdev;
+	int retval;
+
+	netif_device_detach(netdev);
+
+	qlcnic_cancel_idc_work(adapter);
+
+	if (netif_running(netdev))
+		qlcnic_down(adapter, netdev);
+
+	qlcnic_clr_all_drv_state(adapter, 0);
+
+	clear_bit(__QLCNIC_RESETTING, &adapter->state);
+
+	retval = pci_save_state(pdev);
+	if (retval)
+		return retval;
+
+	if (qlcnic_wol_supported(adapter)) {
+		pci_enable_wake(pdev, PCI_D3cold, 1);
+		pci_enable_wake(pdev, PCI_D3hot, 1);
+	}
+
+	return 0;
+}
+
+int qlcnic_82xx_resume(struct qlcnic_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	int err;
+
+	err = qlcnic_start_firmware(adapter);
+	if (err) {
+		dev_err(&adapter->pdev->dev, "failed to start firmware\n");
+		return err;
+	}
+
+	if (netif_running(netdev)) {
+		err = qlcnic_up(adapter, netdev);
+		if (!err)
+			qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+	}
+
+	netif_device_attach(netdev);
+	qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
+	return err;
+}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
index b190c84..2c22504 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
@@ -199,4 +199,8 @@ void qlcnic_82xx_api_unlock(struct qlcnic_adapter *);
 void qlcnic_82xx_napi_enable(struct qlcnic_adapter *);
 void qlcnic_82xx_napi_disable(struct qlcnic_adapter *);
 void qlcnic_82xx_napi_del(struct qlcnic_adapter *);
+int qlcnic_82xx_shutdown(struct pci_dev *);
+int qlcnic_82xx_resume(struct qlcnic_adapter *);
+void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed);
+void qlcnic_fw_poll_work(struct work_struct *work);
 #endif				/* __QLCNIC_HW_H_ */
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 0d7a4fd..4528f8e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -59,13 +59,11 @@ static int qlcnic_close(struct net_device *netdev);
 static void qlcnic_tx_timeout(struct net_device *netdev);
 static void qlcnic_attach_work(struct work_struct *work);
 static void qlcnic_fwinit_work(struct work_struct *work);
-static void qlcnic_fw_poll_work(struct work_struct *work);
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static void qlcnic_poll_controller(struct net_device *netdev);
 #endif
 
 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
-static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
 
 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
@@ -469,6 +467,8 @@ static struct qlcnic_nic_template qlcnic_ops = {
 	.napi_add		= qlcnic_82xx_napi_add,
 	.napi_del		= qlcnic_82xx_napi_del,
 	.config_ipaddr		= qlcnic_82xx_config_ipaddr,
+	.shutdown		= qlcnic_82xx_shutdown,
+	.resume			= qlcnic_82xx_resume,
 	.clear_legacy_intr	= qlcnic_82xx_clear_legacy_intr,
 };
 
@@ -2277,37 +2277,6 @@ static void qlcnic_remove(struct pci_dev *pdev)
 	kfree(ahw);
 	free_netdev(netdev);
 }
-static int __qlcnic_shutdown(struct pci_dev *pdev)
-{
-	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
-	struct net_device *netdev = adapter->netdev;
-	int retval;
-
-	netif_device_detach(netdev);
-
-	qlcnic_cancel_idc_work(adapter);
-
-	if (netif_running(netdev))
-		qlcnic_down(adapter, netdev);
-
-	qlcnic_sriov_cleanup(adapter);
-	if (qlcnic_82xx_check(adapter))
-		qlcnic_clr_all_drv_state(adapter, 0);
-
-	clear_bit(__QLCNIC_RESETTING, &adapter->state);
-
-	retval = pci_save_state(pdev);
-	if (retval)
-		return retval;
-	if (qlcnic_82xx_check(adapter)) {
-		if (qlcnic_wol_supported(adapter)) {
-			pci_enable_wake(pdev, PCI_D3cold, 1);
-			pci_enable_wake(pdev, PCI_D3hot, 1);
-		}
-	}
-
-	return 0;
-}
 
 static void qlcnic_shutdown(struct pci_dev *pdev)
 {
@@ -2318,8 +2287,7 @@ static void qlcnic_shutdown(struct pci_dev *pdev)
 }
 
 #ifdef CONFIG_PM
-static int
-qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
+static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	int retval;
 
@@ -2331,11 +2299,9 @@ qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
 	return 0;
 }
 
-static int
-qlcnic_resume(struct pci_dev *pdev)
+static int qlcnic_resume(struct pci_dev *pdev)
 {
 	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
-	struct net_device *netdev = adapter->netdev;
 	int err;
 
 	err = pci_enable_device(pdev);
@@ -2346,23 +2312,7 @@ qlcnic_resume(struct pci_dev *pdev)
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
 
-	err = qlcnic_start_firmware(adapter);
-	if (err) {
-		dev_err(&pdev->dev, "failed to start firmware\n");
-		return err;
-	}
-
-	if (netif_running(netdev)) {
-		err = qlcnic_up(adapter, netdev);
-		if (err)
-			goto done;
-
-		qlcnic_restore_indev_addr(netdev, NETDEV_UP);
-	}
-done:
-	netif_device_attach(netdev);
-	qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
-	return 0;
+	return  __qlcnic_resume(adapter);
 }
 #endif
 
@@ -2701,8 +2651,7 @@ qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
 	return 0;
 }
 
-static void
-qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
+void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
 {
 	u32  val;
 
@@ -3213,8 +3162,7 @@ detach:
 	return 1;
 }
 
-static void
-qlcnic_fw_poll_work(struct work_struct *work)
+void qlcnic_fw_poll_work(struct work_struct *work)
 {
 	struct qlcnic_adapter *adapter = container_of(work,
 				struct qlcnic_adapter, fw_work.work);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
index 9176cb0..0daf660 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
@@ -195,6 +195,8 @@ int __qlcnic_sriov_add_act_list(struct qlcnic_sriov *, struct qlcnic_vf_info *,
 int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *,
 				   struct qlcnic_info *, u16);
 int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *, u16, u8);
+int qlcnic_sriov_vf_shutdown(struct pci_dev *);
+int qlcnic_sriov_vf_resume(struct qlcnic_adapter *);
 
 static inline bool qlcnic_sriov_enable_check(struct qlcnic_adapter *adapter)
 {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index bcd200e..d556249 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -76,6 +76,8 @@ static struct qlcnic_nic_template qlcnic_sriov_vf_ops = {
 	.cancel_idc_work        = qlcnic_sriov_vf_cancel_fw_work,
 	.napi_add		= qlcnic_83xx_napi_add,
 	.napi_del		= qlcnic_83xx_napi_del,
+	.shutdown		= qlcnic_sriov_vf_shutdown,
+	.resume			= qlcnic_sriov_vf_resume,
 	.config_ipaddr		= qlcnic_83xx_config_ipaddr,
 	.clear_legacy_intr	= qlcnic_83xx_clear_legacy_intr,
 };
@@ -1954,3 +1956,54 @@ static void qlcnic_sriov_vf_free_mac_list(struct qlcnic_adapter *adapter)
 		kfree(cur);
 	}
 }
+
+int qlcnic_sriov_vf_shutdown(struct pci_dev *pdev)
+{
+	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
+	struct net_device *netdev = adapter->netdev;
+	int retval;
+
+	netif_device_detach(netdev);
+	qlcnic_cancel_idc_work(adapter);
+
+	if (netif_running(netdev))
+		qlcnic_down(adapter, netdev);
+
+	qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_TERM);
+	qlcnic_sriov_cfg_bc_intr(adapter, 0);
+	qlcnic_83xx_disable_mbx_intr(adapter);
+	cancel_delayed_work_sync(&adapter->idc_aen_work);
+
+	retval = pci_save_state(pdev);
+	if (retval)
+		return retval;
+
+	return 0;
+}
+
+int qlcnic_sriov_vf_resume(struct qlcnic_adapter *adapter)
+{
+	struct qlc_83xx_idc *idc = &adapter->ahw->idc;
+	struct net_device *netdev = adapter->netdev;
+	int err;
+
+	set_bit(QLC_83XX_MODULE_LOADED, &idc->status);
+	qlcnic_83xx_enable_mbx_intrpt(adapter);
+	err = qlcnic_sriov_cfg_bc_intr(adapter, 1);
+	if (err)
+		return err;
+
+	err = qlcnic_sriov_channel_cfg_cmd(adapter, QLCNIC_BC_CMD_CHANNEL_INIT);
+	if (!err) {
+		if (netif_running(netdev)) {
+			err = qlcnic_up(adapter, netdev);
+			if (!err)
+				qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+		}
+	}
+
+	netif_device_attach(netdev);
+	qlcnic_schedule_work(adapter, qlcnic_sriov_vf_poll_dev_state,
+			     idc->delay);
+	return err;
+}
-- 
cgit v0.10.2


From 8640caf60aac7fe30dd622aca41d8336d07d3bd7 Mon Sep 17 00:00:00 2001
From: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Date: Sat, 22 Jun 2013 04:12:07 -0400
Subject: qlcnic: Update version to 5.2.44

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index a89e322..b00cf56 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -38,8 +38,8 @@
 
 #define _QLCNIC_LINUX_MAJOR 5
 #define _QLCNIC_LINUX_MINOR 2
-#define _QLCNIC_LINUX_SUBVERSION 43
-#define QLCNIC_LINUX_VERSIONID  "5.2.43"
+#define _QLCNIC_LINUX_SUBVERSION 44
+#define QLCNIC_LINUX_VERSIONID  "5.2.44"
 #define QLCNIC_DRV_IDC_VER  0x01
 #define QLCNIC_DRIVER_VERSION  ((_QLCNIC_LINUX_MAJOR << 16) |\
 		 (_QLCNIC_LINUX_MINOR << 8) | (_QLCNIC_LINUX_SUBVERSION))
-- 
cgit v0.10.2


From b33698e267ff17a97ecf3ee621a925bb356e9120 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Thu, 20 Jun 2013 16:30:00 +0800
Subject: ipv6: remove a useless pr_info() in addrconf_gre_config()

This is debug info, should at least be pr_debug(), but given
that this code is in upstream for two years, there is no
need to keep this debugging printk any more, so just remove it.

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 8044912..90788a1 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2760,8 +2760,6 @@ static void addrconf_gre_config(struct net_device *dev)
 	struct inet6_dev *idev;
 	struct in6_addr addr;
 
-	pr_info("%s(%s)\n", __func__, dev->name);
-
 	ASSERT_RTNL();
 
 	if ((idev = ipv6_find_idev(dev)) == NULL) {
-- 
cgit v0.10.2


From b3a6dfe8178c5159e54117078134fef806a913ca Mon Sep 17 00:00:00 2001
From: Asias He <asias@redhat.com>
Date: Thu, 20 Jun 2013 17:20:30 +0800
Subject: VSOCK: Introduce vsock_auto_bind helper

This peace of code is called three times, let's have a helper for it.

Signed-off-by: Asias He <asias@redhat.com>
Acked-by: Andy King <acking@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 3f77f42..b0b362a 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -165,6 +165,18 @@ static struct list_head vsock_bind_table[VSOCK_HASH_SIZE + 1];
 static struct list_head vsock_connected_table[VSOCK_HASH_SIZE];
 static DEFINE_SPINLOCK(vsock_table_lock);
 
+/* Autobind this socket to the local address if necessary. */
+static int vsock_auto_bind(struct vsock_sock *vsk)
+{
+	struct sock *sk = sk_vsock(vsk);
+	struct sockaddr_vm local_addr;
+
+	if (vsock_addr_bound(&vsk->local_addr))
+		return 0;
+	vsock_addr_init(&local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
+	return __vsock_bind(sk, &local_addr);
+}
+
 static void vsock_init_tables(void)
 {
 	int i;
@@ -956,15 +968,10 @@ static int vsock_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
 
 	lock_sock(sk);
 
-	if (!vsock_addr_bound(&vsk->local_addr)) {
-		struct sockaddr_vm local_addr;
-
-		vsock_addr_init(&local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
-		err = __vsock_bind(sk, &local_addr);
-		if (err != 0)
-			goto out;
+	err = vsock_auto_bind(vsk);
+	if (err)
+		goto out;
 
-	}
 
 	/* If the provided message contains an address, use that.  Otherwise
 	 * fall back on the socket's remote handle (if it has been connected).
@@ -1038,15 +1045,9 @@ static int vsock_dgram_connect(struct socket *sock,
 
 	lock_sock(sk);
 
-	if (!vsock_addr_bound(&vsk->local_addr)) {
-		struct sockaddr_vm local_addr;
-
-		vsock_addr_init(&local_addr, VMADDR_CID_ANY, VMADDR_PORT_ANY);
-		err = __vsock_bind(sk, &local_addr);
-		if (err != 0)
-			goto out;
-
-	}
+	err = vsock_auto_bind(vsk);
+	if (err)
+		goto out;
 
 	if (!transport->dgram_allow(remote_addr->svm_cid,
 				    remote_addr->svm_port)) {
@@ -1163,17 +1164,9 @@ static int vsock_stream_connect(struct socket *sock, struct sockaddr *addr,
 		memcpy(&vsk->remote_addr, remote_addr,
 		       sizeof(vsk->remote_addr));
 
-		/* Autobind this socket to the local address if necessary. */
-		if (!vsock_addr_bound(&vsk->local_addr)) {
-			struct sockaddr_vm local_addr;
-
-			vsock_addr_init(&local_addr, VMADDR_CID_ANY,
-					VMADDR_PORT_ANY);
-			err = __vsock_bind(sk, &local_addr);
-			if (err != 0)
-				goto out;
-
-		}
+		err = vsock_auto_bind(vsk);
+		if (err)
+			goto out;
 
 		sk->sk_state = SS_CONNECTING;
 
-- 
cgit v0.10.2


From dce1a2877778fee172ab74411fcabd77bceb8e12 Mon Sep 17 00:00:00 2001
From: Asias He <asias@redhat.com>
Date: Thu, 20 Jun 2013 17:20:31 +0800
Subject: VSOCK: Return VMCI_ERROR_NO_MEM when fails to allocate skb

vmci_transport_recv_dgram_cb always return VMCI_SUCESS even if we fail
to allocate skb, return VMCI_ERROR_NO_MEM instead.

Signed-off-by: Asias He <asias@redhat.com>
Acked-by: Andy King <acking@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index daff752..99b511d 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -625,13 +625,14 @@ static int vmci_transport_recv_dgram_cb(void *data, struct vmci_datagram *dg)
 
 	/* Attach the packet to the socket's receive queue as an sk_buff. */
 	skb = alloc_skb(size, GFP_ATOMIC);
-	if (skb) {
-		/* sk_receive_skb() will do a sock_put(), so hold here. */
-		sock_hold(sk);
-		skb_put(skb, size);
-		memcpy(skb->data, dg, size);
-		sk_receive_skb(sk, skb, 0);
-	}
+	if (!skb)
+		return VMCI_ERROR_NO_MEM;
+
+	/* sk_receive_skb() will do a sock_put(), so hold here. */
+	sock_hold(sk);
+	skb_put(skb, size);
+	memcpy(skb->data, dg, size);
+	sk_receive_skb(sk, skb, 0);
 
 	return VMCI_SUCCESS;
 }
-- 
cgit v0.10.2


From 0fc932467688e1c81fc109a93f323cef4993dc24 Mon Sep 17 00:00:00 2001
From: Asias He <asias@redhat.com>
Date: Thu, 20 Jun 2013 17:20:32 +0800
Subject: VSOCK: Remove unnecessary label

Signed-off-by: Asias He <asias@redhat.com>
Acked-by: Andy King <acking@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 99b511d..ffc11df 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -940,10 +940,9 @@ static void vmci_transport_recv_pkt_work(struct work_struct *work)
 		 * reset to prevent that.
 		 */
 		vmci_transport_send_reset(sk, pkt);
-		goto out;
+		break;
 	}
 
-out:
 	release_sock(sk);
 	kfree(recv_pkt_info);
 	/* Release reference obtained in the stream callback when we fetched
-- 
cgit v0.10.2


From a49dd9dcb50195b35a5e59eb65b8e56584874630 Mon Sep 17 00:00:00 2001
From: Asias He <asias@redhat.com>
Date: Thu, 20 Jun 2013 17:20:33 +0800
Subject: VSOCK: Fix VSOCK_HASH and VSOCK_CONN_HASH

If we mod with VSOCK_HASH_SIZE -1, we get 0, 1, .... 249.  Actually, we
have vsock_bind_table[0 ... 250] and vsock_connected_table[0 .. 250].
In this case the last entry will never be used.

We should mod with VSOCK_HASH_SIZE instead.

Signed-off-by: Asias He <asias@redhat.com>
Acked-by: Andy King <acking@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index b0b362a..593071d 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -144,18 +144,18 @@ EXPORT_SYMBOL_GPL(vm_sockets_get_local_cid);
  * VSOCK_HASH_SIZE + 1 so that vsock_bind_table[0] through
  * vsock_bind_table[VSOCK_HASH_SIZE - 1] are for bound sockets and
  * vsock_bind_table[VSOCK_HASH_SIZE] is for unbound sockets.  The hash function
- * mods with VSOCK_HASH_SIZE - 1 to ensure this.
+ * mods with VSOCK_HASH_SIZE to ensure this.
  */
 #define VSOCK_HASH_SIZE         251
 #define MAX_PORT_RETRIES        24
 
-#define VSOCK_HASH(addr)        ((addr)->svm_port % (VSOCK_HASH_SIZE - 1))
+#define VSOCK_HASH(addr)        ((addr)->svm_port % VSOCK_HASH_SIZE)
 #define vsock_bound_sockets(addr) (&vsock_bind_table[VSOCK_HASH(addr)])
 #define vsock_unbound_sockets     (&vsock_bind_table[VSOCK_HASH_SIZE])
 
 /* XXX This can probably be implemented in a better way. */
 #define VSOCK_CONN_HASH(src, dst)				\
-	(((src)->svm_cid ^ (dst)->svm_port) % (VSOCK_HASH_SIZE - 1))
+	(((src)->svm_cid ^ (dst)->svm_port) % VSOCK_HASH_SIZE)
 #define vsock_connected_sockets(src, dst)		\
 	(&vsock_connected_table[VSOCK_CONN_HASH(src, dst)])
 #define vsock_connected_sockets_vsk(vsk)				\
-- 
cgit v0.10.2


From 78c3bcc5d1af64f51d9f30b0f5a2d1985bf69734 Mon Sep 17 00:00:00 2001
From: Ariel Elior <ariele@broadcom.com>
Date: Thu, 20 Jun 2013 17:39:08 +0300
Subject: bnx2x: Improve PF behaviour toward VF

If PF is unloaded with loaded VFs, signal towards VFs so they can detect
this gracefully.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
----
 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h       |  2 ++
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c   |  3 +++
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c  | 23 +++++++++++++++++++---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 24 ++++++++++++++++++++---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h |  2 ++
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c  | 12 +++++++++++-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h  |  5 ++++-
 7 files changed, 63 insertions(+), 8 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index edda716..dedbd76 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1330,6 +1330,7 @@ enum {
 	BNX2X_SP_RTNL_AFEX_F_UPDATE,
 	BNX2X_SP_RTNL_ENABLE_SRIOV,
 	BNX2X_SP_RTNL_VFPF_MCAST,
+	BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
 	BNX2X_SP_RTNL_VFPF_STORM_RX_MODE,
 	BNX2X_SP_RTNL_HYPERVISOR_VLAN,
 };
@@ -1500,6 +1501,7 @@ struct bnx2x {
 #define USING_SINGLE_MSIX_FLAG		(1 << 20)
 #define BC_SUPPORTS_DCBX_MSG_NON_PMF	(1 << 21)
 #define IS_VF_FLAG			(1 << 22)
+#define INTERRUPTS_ENABLED_FLAG		(1 << 23)
 
 #define BP_NOMCP(bp)			((bp)->flags & NO_MCP_FLAG)
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index ca7f2bb..d342c5a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2871,6 +2871,9 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
 	bp->state = BNX2X_STATE_CLOSING_WAIT4_HALT;
 	smp_mb();
 
+	/* indicate to VFs that the PF is going down */
+	bnx2x_iov_channel_down(bp);
+
 	if (CNIC_LOADED(bp))
 		bnx2x_cnic_notify(bp, CNIC_CTL_STOP_CMD);
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index c962d66..7a7e326 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -5457,9 +5457,19 @@ static void bnx2x_timer(unsigned long data)
 		bnx2x_stats_handle(bp, STATS_EVENT_UPDATE);
 
 	/* sample pf vf bulletin board for new posts from pf */
-	if (IS_VF(bp))
+	if (IS_VF(bp)) {
 		bnx2x_sample_bulletin(bp);
 
+		/* if channel is down we need to self destruct */
+		if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
+			smp_mb__before_clear_bit();
+			set_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
+				&bp->sp_rtnl_state);
+			smp_mb__after_clear_bit();
+			schedule_delayed_work(&bp->sp_rtnl_task, 0);
+		}
+	}
+
 	mod_timer(&bp->timer, jiffies + bp->current_interval);
 }
 
@@ -9620,6 +9630,13 @@ sp_rtnl_not_reset:
 		   "sending set mcast vf pf channel message from rtnl sp-task\n");
 		bnx2x_vfpf_set_mcast(bp->dev);
 	}
+	if (test_and_clear_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
+			       &bp->sp_rtnl_state)){
+		if (!test_bit(__LINK_STATE_NOCARRIER, &bp->dev->state)) {
+			bnx2x_tx_disable(bp);
+			BNX2X_ERR("PF indicated channel is not servicable anymore. This means this VF device is no longer operational\n");
+		}
+	}
 
 	if (test_and_clear_bit(BNX2X_SP_RTNL_VFPF_STORM_RX_MODE,
 			       &bp->sp_rtnl_state)) {
@@ -12814,6 +12831,8 @@ static void __bnx2x_remove(struct pci_dev *pdev,
 		rtnl_unlock();
 	}
 
+	bnx2x_iov_remove_one(bp);
+
 	/* Power on: we can't let PCI layer write to us while we are in D3 */
 	if (IS_PF(bp))
 		bnx2x_set_power_state(bp, PCI_D0);
@@ -12828,8 +12847,6 @@ static void __bnx2x_remove(struct pci_dev *pdev,
 	/* Make sure RESET task is not scheduled before continuing */
 	cancel_delayed_work_sync(&bp->sp_rtnl_task);
 
-	bnx2x_iov_remove_one(bp);
-
 	/* send message via vfpf channel to release the resources of this vf */
 	if (IS_VF(bp))
 		bnx2x_vfpf_release(bp);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 8a556dd..2a8ad6d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -1459,13 +1459,11 @@ static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
 	struct bnx2x_virtf *vf = bnx2x_vf_by_abs_fid(bp, abs_vfid);
 
 	if (!vf)
-		goto unknown_dev;
+		return false;
 
 	dev = pci_get_bus_and_slot(vf->bus, vf->devfn);
 	if (dev)
 		return bnx2x_is_pcie_pending(dev);
-
-unknown_dev:
 	return false;
 }
 
@@ -3469,3 +3467,23 @@ int bnx2x_open_epilog(struct bnx2x *bp)
 
 	return 0;
 }
+
+void bnx2x_iov_channel_down(struct bnx2x *bp)
+{
+	int vf_idx;
+	struct pf_vf_bulletin_content *bulletin;
+
+	if (!IS_SRIOV(bp))
+		return;
+
+	for_each_vf(bp, vf_idx) {
+		/* locate this VFs bulletin board and update the channel down
+		 * bit
+		 */
+		bulletin = BP_VF_BULLETIN(bp, vf_idx);
+		bulletin->valid_bitmap |= 1 << CHANNEL_DOWN;
+
+		/* update vf bulletin board */
+		bnx2x_post_vf_bulletin(bp, vf_idx);
+	}
+}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index f08c604..9fc029e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -761,6 +761,7 @@ static inline int bnx2x_vf_headroom(struct bnx2x *bp)
 }
 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp);
 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs);
+void bnx2x_iov_channel_down(struct bnx2x *bp);
 int bnx2x_open_epilog(struct bnx2x *bp);
 
 #else /* CONFIG_BNX2X_SRIOV */
@@ -817,6 +818,7 @@ static inline void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
 static inline int bnx2x_vf_pci_alloc(struct bnx2x *bp) {return 0; }
 static inline void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp) {}
 static inline int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs) {return 0; }
+static inline void bnx2x_iov_channel_down(struct bnx2x *bp) {}
 static inline int bnx2x_open_epilog(struct bnx2x *bp) {return 0; }
 
 #endif /* CONFIG_BNX2X_SRIOV */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index 861809d..2088063 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -113,7 +113,7 @@ static int bnx2x_send_msg2pf(struct bnx2x *bp, u8 *done, dma_addr_t msg_mapping)
 {
 	struct cstorm_vf_zone_data __iomem *zone_data =
 		REG_ADDR(bp, PXP_VF_ADDR_CSDM_GLOBAL_START);
-	int tout = 600, interval = 100; /* wait for 60 seconds */
+	int tout = 100, interval = 100; /* wait for 10 seconds */
 
 	if (*done) {
 		BNX2X_ERR("done was non zero before message to pf was sent\n");
@@ -121,6 +121,16 @@ static int bnx2x_send_msg2pf(struct bnx2x *bp, u8 *done, dma_addr_t msg_mapping)
 		return -EINVAL;
 	}
 
+	/* if PF indicated channel is down avoid sending message. Return success
+	 * so calling flow can continue
+	 */
+	bnx2x_sample_bulletin(bp);
+	if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
+		DP(BNX2X_MSG_IOV, "detecting channel down. Aborting message\n");
+		*done = PFVF_STATUS_SUCCESS;
+		return 0;
+	}
+
 	/* Write message address */
 	writel(U64_LO(msg_mapping),
 	       &zone_data->non_trigger.vf_pf_channel.msg_addr_lo);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
index 41708fa..f3ad174 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
@@ -331,7 +331,10 @@ struct pf_vf_bulletin_content {
 #define VLAN_VALID		1	/* when set, the vf should not access
 					 * the vfpf channel
 					 */
-
+#define CHANNEL_DOWN		2	/* vfpf channel is disabled. VFs are not
+					 * to attempt to send messages on the
+					 * channel after this bit is set
+					 */
 	u8 mac[ETH_ALEN];
 	u8 mac_padding[2];
 
-- 
cgit v0.10.2


From af902ae4432ba8650a5f16a2cca58507a5f566bd Mon Sep 17 00:00:00 2001
From: Ariel Elior <ariele@broadcom.com>
Date: Thu, 20 Jun 2013 17:39:09 +0300
Subject: bnx2x: VF ndo sanity

If iproute2 VF callbacks are invoked before PF is loaded,
abort gracefully.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 2a8ad6d..f6177ba 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -3083,6 +3083,11 @@ void bnx2x_disable_sriov(struct bnx2x *bp)
 static int bnx2x_vf_ndo_sanity(struct bnx2x *bp, int vfidx,
 			       struct bnx2x_virtf *vf)
 {
+	if (bp->state != BNX2X_STATE_OPEN) {
+		BNX2X_ERR("vf ndo called though PF is down\n");
+		return -EINVAL;
+	}
+
 	if (!IS_SRIOV(bp)) {
 		BNX2X_ERR("vf ndo called though sriov is disabled\n");
 		return -EINVAL;
-- 
cgit v0.10.2


From 03c22ea3f0951f7c5395fe8348cb15100815268a Mon Sep 17 00:00:00 2001
From: Ariel Elior <ariele@broadcom.com>
Date: Thu, 20 Jun 2013 17:39:10 +0300
Subject: bnx2x: improve VF timings

Wait 100ms for FLR to complete in parallel over all VFs instead of serializing
the waits (which can amount to several seconds with 64 VFs).

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index f6177ba..bda4d7e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -1469,9 +1469,6 @@ static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
 
 int bnx2x_vf_flr_clnup_epilog(struct bnx2x *bp, u8 abs_vfid)
 {
-	/* Wait 100ms */
-	msleep(100);
-
 	/* Verify no pending pci transactions */
 	if (bnx2x_vf_is_pcie_pending(bp, abs_vfid))
 		BNX2X_ERR("PCIE Transactions still pending\n");
@@ -2174,6 +2171,9 @@ int bnx2x_iov_nic_init(struct bnx2x *bp)
 
 	DP(BNX2X_MSG_IOV, "num of vfs: %d\n", (bp)->vfdb->sriov.nr_virtfn);
 
+	/* let FLR complete ... */
+	msleep(100);
+
 	/* initialize vf database */
 	for_each_vf(bp, vfid) {
 		struct bnx2x_virtf *vf = BP_VF(bp, vfid);
@@ -2775,6 +2775,10 @@ int bnx2x_vf_init(struct bnx2x *bp, struct bnx2x_virtf *vf, dma_addr_t *sb_map)
 		   vf->abs_vfid, vf->state);
 		return -EINVAL;
 	}
+
+	/* let FLR complete ... */
+	msleep(100);
+
 	/* FLR cleanup epilogue */
 	if (bnx2x_vf_flr_clnup_epilog(bp, vf->abs_vfid))
 		return -EBUSY;
-- 
cgit v0.10.2


From b8e0d884cba6b9cd6e43adfaab9e67096ee8fb28 Mon Sep 17 00:00:00 2001
From: Yaniv Rosner <yanivr@broadcom.com>
Date: Thu, 20 Jun 2013 17:39:11 +0300
Subject: bnx2x: Fix 20G KR2 support claims

Don't claim 20G is supported if the speed is unsupported by the phys
(reflected by various ethtools and ndos).

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 7a7e326..d468fe4 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -10558,6 +10558,10 @@ static void bnx2x_link_settings_supported(struct bnx2x *bp, u32 switch_cfg)
 		if (!(bp->link_params.speed_cap_mask[idx] &
 					PORT_HW_CFG_SPEED_CAPABILITY_D0_10G))
 			bp->port.supported[idx] &= ~SUPPORTED_10000baseT_Full;
+
+		if (!(bp->link_params.speed_cap_mask[idx] &
+					PORT_HW_CFG_SPEED_CAPABILITY_D0_20G))
+			bp->port.supported[idx] &= ~SUPPORTED_20000baseKR2_Full;
 	}
 
 	BNX2X_DEV_INFO("supported 0x%x 0x%x\n", bp->port.supported[0],
-- 
cgit v0.10.2


From 60877a32bce00041528576e6b8df5abe9251fa73 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 20 Jun 2013 01:15:51 -0700
Subject: net: allow large number of tx queues

netif_alloc_netdev_queues() uses kcalloc() to allocate memory
for the "struct netdev_queue *_tx" array.

For large number of tx queues, kcalloc() might fail, so this
patch does a fallback to vzalloc().

As vmalloc() adds overhead on a critical network path, add __GFP_REPEAT
to kzalloc() flags to do this fallback only when really needed.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/dev.c b/net/core/dev.c
index fa007db..722f633 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -130,6 +130,7 @@
 #include <linux/cpu_rmap.h>
 #include <linux/static_key.h>
 #include <linux/hashtable.h>
+#include <linux/vmalloc.h>
 
 #include "net-sysfs.h"
 
@@ -5253,17 +5254,28 @@ static void netdev_init_one_queue(struct net_device *dev,
 #endif
 }
 
+static void netif_free_tx_queues(struct net_device *dev)
+{
+	if (is_vmalloc_addr(dev->_tx))
+		vfree(dev->_tx);
+	else
+		kfree(dev->_tx);
+}
+
 static int netif_alloc_netdev_queues(struct net_device *dev)
 {
 	unsigned int count = dev->num_tx_queues;
 	struct netdev_queue *tx;
+	size_t sz = count * sizeof(*tx);
 
-	BUG_ON(count < 1);
-
-	tx = kcalloc(count, sizeof(struct netdev_queue), GFP_KERNEL);
-	if (!tx)
-		return -ENOMEM;
+	BUG_ON(count < 1 || count > 0xffff);
 
+	tx = kzalloc(sz, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
+	if (!tx) {
+		tx = vzalloc(sz);
+		if (!tx)
+			return -ENOMEM;
+	}
 	dev->_tx = tx;
 
 	netdev_for_each_tx_queue(dev, netdev_init_one_queue, NULL);
@@ -5811,7 +5823,7 @@ free_all:
 
 free_pcpu:
 	free_percpu(dev->pcpu_refcnt);
-	kfree(dev->_tx);
+	netif_free_tx_queues(dev);
 #ifdef CONFIG_RPS
 	kfree(dev->_rx);
 #endif
@@ -5836,7 +5848,7 @@ void free_netdev(struct net_device *dev)
 
 	release_net(dev_net(dev));
 
-	kfree(dev->_tx);
+	netif_free_tx_queues(dev);
 #ifdef CONFIG_RPS
 	kfree(dev->_rx);
 #endif
-- 
cgit v0.10.2


From 7c77602f57da3f526fa7cf7bb02c49d3397c0729 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Fri, 21 Jun 2013 15:37:25 +0800
Subject: bridge: fix a typo in comments

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 31952a1..81befac 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1012,7 +1012,7 @@ static int br_ip6_multicast_mld2_report(struct net_bridge *br,
 #endif
 
 /*
- * Add port to rotuer_list
+ * Add port to router_list
  *  list is maintained ordered by pointer value
  *  and locked by br->multicast_lock and RCU
  */
-- 
cgit v0.10.2


From 479b1a5825f68f9b63d26a13ca25ffbb7d2617ad Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Thu, 20 Jun 2013 15:08:14 -0700
Subject: openvswitch: Use correct config guard.

This bug was introduced by commit aa310701e787087
(openvswitch: Add gre tunnel support.)

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
index 3a8d190..943e5c4 100644
--- a/net/openvswitch/vport-gre.c
+++ b/net/openvswitch/vport-gre.c
@@ -16,7 +16,7 @@
  * 02110-1301, USA
  */
 
-#ifdef CONFIG_NET_IPGRE_DEMUX
+#if IS_ENABLED(CONFIG_NET_IPGRE_DEMUX)
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/if.h>
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index f52dfb9..ba81294 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -39,7 +39,7 @@ static const struct vport_ops *vport_ops_list[] = {
 	&ovs_netdev_vport_ops,
 	&ovs_internal_vport_ops,
 
-#ifdef CONFIG_NET_IPGRE_DEMUX
+#if IS_ENABLED(CONFIG_NET_IPGRE_DEMUX)
 	&ovs_gre_vport_ops,
 #endif
 };
-- 
cgit v0.10.2


From 5243b6ac9ed1310f2329b3d0a830a55589e518ea Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Fri, 21 Jun 2013 16:17:11 -0700
Subject: ip_tunnel: Protect tunnel functions with CONFIG_INET guard.

Tunnel constants can be used in generic code but in these cases
the inline functions in ip_tunnels.h cause compilation problems
if CONFIG_INET is not set.

CC: Pravin Shelar <pshelar@nicira.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 10bbb42..b0d9824 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -93,6 +93,8 @@ struct ip_tunnel_net {
 	struct net_device *fb_tunnel_dev;
 };
 
+#ifdef CONFIG_INET
+
 int ip_tunnel_init(struct net_device *dev);
 void ip_tunnel_uninit(struct net_device *dev);
 void  ip_tunnel_dellink(struct net_device *dev, struct list_head *head);
@@ -180,4 +182,7 @@ static inline void iptunnel_xmit_stats(int err,
 		err_stats->tx_dropped++;
 	}
 }
+
+#endif /* CONFIG_INET */
+
 #endif /* __NET_IP_TUNNELS_H */
-- 
cgit v0.10.2


From 07cc61bfc0e5d9da80e353365717d45d29db0081 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 21 Jun 2013 09:20:08 +0300
Subject: xen-netback: double free on unload

There is a typo here, "i" vs "j", so we would crash on module_exit().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index a0b50ad..130bcb2 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1968,8 +1968,8 @@ static void __exit netback_fini(void)
 		del_timer_sync(&netbk->net_timer);
 		kthread_stop(netbk->task);
 		for (j = 0; j < MAX_PENDING_REQS; j++) {
-			if (netbk->mmap_pages[i])
-				__free_page(netbk->mmap_pages[i]);
+			if (netbk->mmap_pages[j])
+				__free_page(netbk->mmap_pages[j]);
 		}
 	}
 
-- 
cgit v0.10.2


From aeb193ea6cef28e33589de05ef932424f8e19bde Mon Sep 17 00:00:00 2001
From: Wedson Almeida Filho <wedsonaf@gmail.com>
Date: Sun, 23 Jun 2013 23:33:48 -0700
Subject: net: Unmap fragment page once iterator is done

Callers of skb_seq_read() are currently forced to call skb_abort_seq_read()
even when consuming all the data because the last call to skb_seq_read (the
one that returns 0 to indicate the end) fails to unmap the last fragment page.

With this patch callers will be allowed to traverse the SKB data by calling
skb_prepare_seq_read() once and repeatedly calling skb_seq_read() as originally
intended (and documented in the original commit 677e90eda), that is, only call
skb_abort_seq_read() if the sequential read is actually aborted.

Signed-off-by: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index 552e8a2..448eae8 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -906,7 +906,6 @@ int iscsi_tcp_recv_skb(struct iscsi_conn *conn, struct sk_buff *skb,
 			ISCSI_DBG_TCP(conn, "no more data avail. Consumed %d\n",
 				      consumed);
 			*status = ISCSI_TCP_SKB_DONE;
-			skb_abort_seq_read(&seq);
 			goto skb_done;
 		}
 		BUG_ON(segment->copied >= segment->size);
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 51aafd6..08125f3 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -473,7 +473,6 @@ __be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr)
 		crc = crc32c(crc, data, len);
 		consumed += len;
 	}
-	skb_abort_seq_read(&st);
 
 	return htonl(crc);
 }
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index edf3757..9f73eca 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2541,8 +2541,13 @@ unsigned int skb_seq_read(unsigned int consumed, const u8 **data,
 	unsigned int block_limit, abs_offset = consumed + st->lower_offset;
 	skb_frag_t *frag;
 
-	if (unlikely(abs_offset >= st->upper_offset))
+	if (unlikely(abs_offset >= st->upper_offset)) {
+		if (st->frag_data) {
+			kunmap_atomic(st->frag_data);
+			st->frag_data = NULL;
+		}
 		return 0;
+	}
 
 next_skb:
 	block_limit = skb_headlen(st->cur_skb) + st->stepped_offset;
-- 
cgit v0.10.2


From 37173488400704f1a05656616cd12baa9e03173b Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Mon, 24 Jun 2013 11:04:10 +0300
Subject: bnx2x: Fix compilation with no IOV support

This fixes an issue caused by submit 78c3bcc5d1af64f51d9f30b0f5a2d1985bf69734
`bnx2x: Improve PF behaviour toward VF', which made the bnx2x driver fail
compilation when PCI_IOV is not set.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index d468fe4..7318988 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -5457,18 +5457,8 @@ static void bnx2x_timer(unsigned long data)
 		bnx2x_stats_handle(bp, STATS_EVENT_UPDATE);
 
 	/* sample pf vf bulletin board for new posts from pf */
-	if (IS_VF(bp)) {
-		bnx2x_sample_bulletin(bp);
-
-		/* if channel is down we need to self destruct */
-		if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
-			smp_mb__before_clear_bit();
-			set_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
-				&bp->sp_rtnl_state);
-			smp_mb__after_clear_bit();
-			schedule_delayed_work(&bp->sp_rtnl_task, 0);
-		}
-	}
+	if (IS_VF(bp))
+		bnx2x_timer_sriov(bp);
 
 	mod_timer(&bp->timer, jiffies + bp->current_interval);
 }
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index bda4d7e..95861ef 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -3426,6 +3426,20 @@ enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp)
 	return PFVF_BULLETIN_UPDATED;
 }
 
+void bnx2x_timer_sriov(struct bnx2x *bp)
+{
+	bnx2x_sample_bulletin(bp);
+
+	/* if channel is down we need to self destruct */
+	if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
+		smp_mb__before_clear_bit();
+		set_bit(BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
+			&bp->sp_rtnl_state);
+		smp_mb__after_clear_bit();
+		schedule_delayed_work(&bp->sp_rtnl_task, 0);
+	}
+}
+
 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
 {
 	/* vf doorbells are embedded within the regview */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 9fc029e..d143a7c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -751,6 +751,7 @@ static inline int bnx2x_vf_ustorm_prods_offset(struct bnx2x *bp,
 }
 
 enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp);
+void bnx2x_timer_sriov(struct bnx2x *bp);
 void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp);
 int bnx2x_vf_pci_alloc(struct bnx2x *bp);
 int bnx2x_enable_sriov(struct bnx2x *bp);
@@ -809,6 +810,7 @@ static inline enum sample_bulletin_result bnx2x_sample_bulletin(struct bnx2x *bp
 {
 	return PFVF_BULLETIN_UNCHANGED;
 }
+static inline void bnx2x_timer_sriov(struct bnx2x *bp) {}
 
 static inline void __iomem *bnx2x_vf_doorbells(struct bnx2x *bp)
 {
-- 
cgit v0.10.2


From 6f390908e58113b9199424749c32a05181ff69d9 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 19 Jun 2013 14:06:25 -0700
Subject: wireless: Make sure __cfg80211_connect_result always puts bss

Otherwise, we can leak a bss reference.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index c0bf781..32dac8c 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -557,6 +557,7 @@ static DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
  * SME event handling
  */
 
+/* This method must consume bss one way or another */
 void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 			       const u8 *req_ie, size_t req_ie_len,
 			       const u8 *resp_ie, size_t resp_ie_len,
@@ -572,8 +573,10 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 	ASSERT_WDEV_LOCK(wdev);
 
 	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
-		    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
+		    wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) {
+		cfg80211_put_bss(wdev->wiphy, bss);
 		return;
+	}
 
 	nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev,
 				    bssid, req_ie, req_ie_len,
-- 
cgit v0.10.2


From 0e3a39b5620bc84f25ffb0592b05b0350e8b0520 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 19 Jun 2013 14:06:27 -0700
Subject: wireless: add comments about bss refcounting

Should help the next person that tries to understand
the bss refcounting logic.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index dd01b58..ae8c186 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -523,6 +523,7 @@ static int cmp_bss(struct cfg80211_bss *a,
 	}
 }
 
+/* Returned bss is reference counted and must be cleaned up appropriately. */
 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
 				      struct ieee80211_channel *channel,
 				      const u8 *bssid,
@@ -678,6 +679,7 @@ static bool cfg80211_combine_bsses(struct cfg80211_registered_device *dev,
 	return true;
 }
 
+/* Returned bss is reference counted and must be cleaned up appropriately. */
 static struct cfg80211_internal_bss *
 cfg80211_bss_update(struct cfg80211_registered_device *dev,
 		    struct cfg80211_internal_bss *tmp)
@@ -866,6 +868,7 @@ cfg80211_get_bss_channel(struct wiphy *wiphy, const u8 *ie, size_t ielen,
 	return channel;
 }
 
+/* Returned bss is reference counted and must be cleaned up appropriately. */
 struct cfg80211_bss*
 cfg80211_inform_bss(struct wiphy *wiphy,
 		    struct ieee80211_channel *channel,
@@ -923,6 +926,7 @@ cfg80211_inform_bss(struct wiphy *wiphy,
 }
 EXPORT_SYMBOL(cfg80211_inform_bss);
 
+/* Returned bss is reference counted and must be cleaned up appropriately. */
 struct cfg80211_bss *
 cfg80211_inform_bss_frame(struct wiphy *wiphy,
 			  struct ieee80211_channel *channel,
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 32dac8c..1d3cfb1 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -239,6 +239,7 @@ void cfg80211_conn_work(struct work_struct *work)
 	rtnl_unlock();
 }
 
+/* Returned bss is reference counted and must be cleaned up appropriately. */
 static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
 {
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
@@ -699,6 +700,7 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 }
 EXPORT_SYMBOL(cfg80211_connect_result);
 
+/* Consumes bss object one way or another */
 void __cfg80211_roamed(struct wireless_dev *wdev,
 		       struct cfg80211_bss *bss,
 		       const u8 *req_ie, size_t req_ie_len,
@@ -775,6 +777,7 @@ void cfg80211_roamed(struct net_device *dev,
 }
 EXPORT_SYMBOL(cfg80211_roamed);
 
+/* Consumes bss object one way or another */
 void cfg80211_roamed_bss(struct net_device *dev,
 			 struct cfg80211_bss *bss, const u8 *req_ie,
 			 size_t req_ie_len, const u8 *resp_ie,
-- 
cgit v0.10.2


From f9bef3df52fe61067e4c1c6cfb2037cb6b259a6a Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 19 Jun 2013 14:06:26 -0700
Subject: wireless: check for dangling wdev->current_bss pointer

If it *is* still set when the netdev is being deleted,
then we are about to leak a pointer.  Warn and clean up
in that case.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 4224e75..672459b 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -934,6 +934,12 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
 		 * freed.
 		 */
 		cfg80211_process_wdev_events(wdev);
+
+		if (WARN_ON(wdev->current_bss)) {
+			cfg80211_unhold_bss(wdev->current_bss);
+			cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
+			wdev->current_bss = NULL;
+		}
 		break;
 	case NETDEV_PRE_UP:
 		if (!(wdev->wiphy->interface_modes & BIT(wdev->iftype)))
-- 
cgit v0.10.2


From a33d402610d2d3a422136defe8237f4ddfb69fd9 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Sun, 23 Jun 2013 12:51:21 +0200
Subject: cfg80211: fix compilation warning for cfg80211_leave_all()

The following compilation issue popped up moving from v3.10-rc1 to
v3.10-rc6 after merging wireless-testing.

net/wireless/sysfs.c:86:13: error: 'cfg80211_leave_all' defined
but not used [-Werror=unused-function]

The function is only called when CONFIG_PM is enabled. Moving the
function under CONFIG_PM as well.

Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 360a42c..a23253e 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -83,6 +83,7 @@ static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
 	return 0;
 }
 
+#ifdef CONFIG_PM
 static void cfg80211_leave_all(struct cfg80211_registered_device *rdev)
 {
 	struct wireless_dev *wdev;
@@ -91,7 +92,6 @@ static void cfg80211_leave_all(struct cfg80211_registered_device *rdev)
 		cfg80211_leave(rdev, wdev);
 }
 
-#ifdef CONFIG_PM
 static int wiphy_suspend(struct device *dev, pm_message_t state)
 {
 	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
-- 
cgit v0.10.2


From ac49e1a8969eeb819c4fc2eced9ee9ef9f35a4a9 Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <thomas@cozybit.com>
Date: Thu, 20 Jun 2013 23:50:58 -0700
Subject: mac80211: allow self-protected frame tx without sta

Useful for userspace mesh to authenticate and peer without
a station entry, since both steps may fail anyway.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 93120de..8184d12 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2827,7 +2827,8 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		    !rcu_access_pointer(sdata->bss->beacon))
 			need_offchan = true;
 		if (!ieee80211_is_action(mgmt->frame_control) ||
-		    mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
+		    mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
+		    mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED)
 			break;
 		rcu_read_lock();
 		sta = sta_info_get(sdata, mgmt->da);
-- 
cgit v0.10.2


From 6c7c4cbfd5f59c04a40af67ad72d14e19215ef36 Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <thomas@cozybit.com>
Date: Thu, 20 Jun 2013 23:50:59 -0700
Subject: mac80211: initialize power mode for mesh STAs

Previously the default mesh STA nonpeer power mode was
UNKNOWN (0) make the default mesh STA power mode ACTIVE,
to prevent unnecessary  frame buffering while peering is
not yet complete. Fixes a panic in ath9k_htc when adding
stations from userspace, and mcast buffered frames are
later released.

Thanks to Bob Copeland for his help debugging this.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index aaf68d2..aeb967a 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -347,6 +347,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	if (ieee80211_vif_is_mesh(&sdata->vif) &&
 	    !sdata->u.mesh.user_mpm)
 		init_timer(&sta->plink_timer);
+	sta->nonpeer_pm = NL80211_MESH_POWER_ACTIVE;
 #endif
 
 	memcpy(sta->sta.addr, addr, ETH_ALEN);
-- 
cgit v0.10.2


From b7153984074e51a50dad905871b705e0d67aa147 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:09 -0700
Subject: vxlan: fix out of order operation on module removal

If vxlan is removed with active vxlan's it would crash because
rtnl_link_unregister (which calls vxlan_dellink), was invoked
before unregister_pernet_device (which calls vxlan_stop).

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 284c6c0..d3005d3 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1771,8 +1771,8 @@ late_initcall(vxlan_init_module);
 
 static void __exit vxlan_cleanup_module(void)
 {
-	rtnl_link_unregister(&vxlan_link_ops);
 	unregister_pernet_device(&vxlan_net_ops);
+	rtnl_link_unregister(&vxlan_link_ops);
 	rcu_barrier();
 }
 module_exit(vxlan_cleanup_module);
-- 
cgit v0.10.2


From 758c57d16adcbec3c03e85f0c9a5b4ca31f6c507 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:09 -0700
Subject: vxlan: fix crash from work pending on module removal

Switch to using a per module work queue so that all the socket
deletion callbacks are done when module is removed.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index d3005d3..eb94bf5 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -148,6 +148,7 @@ struct vxlan_dev {
 
 /* salt for hash table */
 static u32 vxlan_salt __read_mostly;
+static struct workqueue_struct *vxlan_wq;
 
 /* Virtual Network hash table head */
 static inline struct hlist_head *vni_head(struct vxlan_sock *vs, u32 id)
@@ -1631,7 +1632,7 @@ static void vxlan_dellink(struct net_device *dev, struct list_head *head)
 
 	if (--vs->refcnt == 0) {
 		hlist_del_rcu(&vs->hlist);
-		schedule_work(&vs->del_work);
+		queue_work(vxlan_wq, &vs->del_work);
 	}
 }
 
@@ -1750,6 +1751,10 @@ static int __init vxlan_init_module(void)
 {
 	int rc;
 
+	vxlan_wq = alloc_workqueue("vxlan", 0, 0);
+	if (!vxlan_wq)
+		return -ENOMEM;
+
 	get_random_bytes(&vxlan_salt, sizeof(vxlan_salt));
 
 	rc = register_pernet_device(&vxlan_net_ops);
@@ -1765,6 +1770,7 @@ static int __init vxlan_init_module(void)
 out2:
 	unregister_pernet_device(&vxlan_net_ops);
 out1:
+	destroy_workqueue(vxlan_wq);
 	return rc;
 }
 late_initcall(vxlan_init_module);
@@ -1773,6 +1779,7 @@ static void __exit vxlan_cleanup_module(void)
 {
 	unregister_pernet_device(&vxlan_net_ops);
 	rtnl_link_unregister(&vxlan_link_ops);
+	destroy_workqueue(vxlan_wq);
 	rcu_barrier();
 }
 module_exit(vxlan_cleanup_module);
-- 
cgit v0.10.2


From 7c47cedf43a8b3086c3dcf26cbc058747ee21bec Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:10 -0700
Subject: vxlan: move IGMP join/leave to work queue

Do join/leave from work queue to avoid lock inversion problems
between normal socket and RTNL. The code comes out cleaner
as well.

Uses Cong Wang's suggestion to turn refcnt into a real atomic
since now need to handle case where last use of socket is IGMP
worker.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index eb94bf5..b061c98 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -85,7 +85,7 @@ struct vxlan_sock {
 	struct hlist_node hlist;
 	struct rcu_head	  rcu;
 	struct work_struct del_work;
-	unsigned int	  refcnt;
+	atomic_t	  refcnt;
 	struct socket	  *sock;
 	struct hlist_head vni_list[VNI_HASH_SIZE];
 };
@@ -131,6 +131,7 @@ struct vxlan_dev {
 	__u8		  ttl;
 	u32		  flags;	/* VXLAN_F_* below */
 
+	struct work_struct igmp_work;
 	unsigned long	  age_interval;
 	struct timer_list age_timer;
 	spinlock_t	  hash_lock;
@@ -648,76 +649,58 @@ static bool vxlan_snoop(struct net_device *dev,
 
 
 /* See if multicast group is already in use by other ID */
-static bool vxlan_group_used(struct vxlan_net *vn,
-			     const struct vxlan_dev *this)
+static bool vxlan_group_used(struct vxlan_net *vn, __be32 remote_ip)
 {
 	struct vxlan_dev *vxlan;
 
 	list_for_each_entry(vxlan, &vn->vxlan_list, next) {
-		if (vxlan == this)
-			continue;
-
 		if (!netif_running(vxlan->dev))
 			continue;
 
-		if (vxlan->default_dst.remote_ip == this->default_dst.remote_ip)
+		if (vxlan->default_dst.remote_ip == remote_ip)
 			return true;
 	}
 
 	return false;
 }
 
-/* kernel equivalent to IP_ADD_MEMBERSHIP */
-static int vxlan_join_group(struct net_device *dev)
+static void vxlan_sock_hold(struct vxlan_sock *vs)
 {
-	struct vxlan_dev *vxlan = netdev_priv(dev);
-	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
-	struct sock *sk = vxlan->vn_sock->sock->sk;
-	struct ip_mreqn mreq = {
-		.imr_multiaddr.s_addr	= vxlan->default_dst.remote_ip,
-		.imr_ifindex		= vxlan->default_dst.remote_ifindex,
-	};
-	int err;
-
-	/* Already a member of group */
-	if (vxlan_group_used(vn, vxlan))
-		return 0;
+	atomic_inc(&vs->refcnt);
+}
 
-	/* Need to drop RTNL to call multicast join */
-	rtnl_unlock();
-	lock_sock(sk);
-	err = ip_mc_join_group(sk, &mreq);
-	release_sock(sk);
-	rtnl_lock();
+static void vxlan_sock_release(struct vxlan_sock *vs)
+{
+	if (!atomic_dec_and_test(&vs->refcnt))
+		return;
 
-	return err;
+	hlist_del_rcu(&vs->hlist);
+	queue_work(vxlan_wq, &vs->del_work);
 }
 
-
-/* kernel equivalent to IP_DROP_MEMBERSHIP */
-static int vxlan_leave_group(struct net_device *dev)
+/* Callback to update multicast group membership.
+ * Scheduled when vxlan goes up/down.
+ */
+static void vxlan_igmp_work(struct work_struct *work)
 {
-	struct vxlan_dev *vxlan = netdev_priv(dev);
-	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
-	int err = 0;
-	struct sock *sk = vxlan->vn_sock->sock->sk;
+	struct vxlan_dev *vxlan = container_of(work, struct vxlan_dev, igmp_work);
+	struct vxlan_net *vn = net_generic(dev_net(vxlan->dev), vxlan_net_id);
+	struct vxlan_sock *vs = vxlan->vn_sock;
+	struct sock *sk = vs->sock->sk;
 	struct ip_mreqn mreq = {
 		.imr_multiaddr.s_addr	= vxlan->default_dst.remote_ip,
 		.imr_ifindex		= vxlan->default_dst.remote_ifindex,
 	};
 
-	/* Only leave group when last vxlan is done. */
-	if (vxlan_group_used(vn, vxlan))
-		return 0;
-
-	/* Need to drop RTNL to call multicast leave */
-	rtnl_unlock();
 	lock_sock(sk);
-	err = ip_mc_leave_group(sk, &mreq);
+	if (vxlan_group_used(vn, vxlan->default_dst.remote_ip))
+		ip_mc_join_group(sk, &mreq);
+	else
+		ip_mc_leave_group(sk, &mreq);
 	release_sock(sk);
-	rtnl_lock();
 
-	return err;
+	vxlan_sock_release(vs);
+	dev_put(vxlan->dev);
 }
 
 /* Callback from net/ipv4/udp.c to receive packets */
@@ -1249,12 +1232,11 @@ static int vxlan_init(struct net_device *dev)
 static int vxlan_open(struct net_device *dev)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
-	int err;
 
 	if (IN_MULTICAST(ntohl(vxlan->default_dst.remote_ip))) {
-		err = vxlan_join_group(dev);
-		if (err)
-			return err;
+		vxlan_sock_hold(vxlan->vn_sock);
+		dev_hold(dev);
+		queue_work(vxlan_wq, &vxlan->igmp_work);
 	}
 
 	if (vxlan->age_interval)
@@ -1285,8 +1267,11 @@ static int vxlan_stop(struct net_device *dev)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 
-	if (IN_MULTICAST(ntohl(vxlan->default_dst.remote_ip)))
-		vxlan_leave_group(dev);
+	if (IN_MULTICAST(ntohl(vxlan->default_dst.remote_ip))) {
+		vxlan_sock_hold(vxlan->vn_sock);
+		dev_hold(dev);
+		queue_work(vxlan_wq, &vxlan->igmp_work);
+	}
 
 	del_timer_sync(&vxlan->age_timer);
 
@@ -1355,6 +1340,7 @@ static void vxlan_setup(struct net_device *dev)
 
 	INIT_LIST_HEAD(&vxlan->next);
 	spin_lock_init(&vxlan->hash_lock);
+	INIT_WORK(&vxlan->igmp_work, vxlan_igmp_work);
 
 	init_timer_deferrable(&vxlan->age_timer);
 	vxlan->age_timer.function = vxlan_cleanup;
@@ -1498,8 +1484,8 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port)
 	udp_sk(sk)->encap_type = 1;
 	udp_sk(sk)->encap_rcv = vxlan_udp_encap_recv;
 	udp_encap_enable();
+	atomic_set(&vs->refcnt, 1);
 
-	vs->refcnt = 1;
 	return vs;
 }
 
@@ -1589,7 +1575,7 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 
 	vs = vxlan_find_port(net, vxlan->dst_port);
 	if (vs)
-		++vs->refcnt;
+		atomic_inc(&vs->refcnt);
 	else {
 		/* Drop lock because socket create acquires RTNL lock */
 		rtnl_unlock();
@@ -1606,12 +1592,7 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 
 	err = register_netdevice(dev);
 	if (err) {
-		if (--vs->refcnt == 0) {
-			rtnl_unlock();
-			sk_release_kernel(vs->sock->sk);
-			kfree(vs);
-			rtnl_lock();
-		}
+		vxlan_sock_release(vs);
 		return err;
 	}
 
@@ -1629,11 +1610,7 @@ static void vxlan_dellink(struct net_device *dev, struct list_head *head)
 	hlist_del_rcu(&vxlan->hlist);
 	list_del(&vxlan->next);
 	unregister_netdevice_queue(dev, head);
-
-	if (--vs->refcnt == 0) {
-		hlist_del_rcu(&vs->hlist);
-		queue_work(vxlan_wq, &vs->del_work);
-	}
+	vxlan_sock_release(vs);
 }
 
 static size_t vxlan_get_size(const struct net_device *dev)
-- 
cgit v0.10.2


From 8385f50a03a8ad3d2c6d76b1117c959261ab7a1c Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:10 -0700
Subject: vxlan: send notification when MAC migrates

When learned entry migrates to another IP send a notification
that entry has changed.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index b061c98..1f2aa26 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -629,6 +629,7 @@ static bool vxlan_snoop(struct net_device *dev,
 
 		f->remote.remote_ip = src_ip;
 		f->updated = jiffies;
+		vxlan_fdb_notify(vxlan, f, RTM_NEWNEIGH);
 	} else {
 		/* learned new entry */
 		spin_lock(&vxlan->hash_lock);
-- 
cgit v0.10.2


From 1c51a9159ddefa5119724a4c7da3fd3ef44b68d5 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:11 -0700
Subject: vxlan: fix race caused by dropping rtnl_unlock

It is possible for two cpu's to race creating vxlan device.
For most cases this is harmless, but the ability to assign "next
avaliable vxlan device" relies on rtnl lock being held across the
whole operation. Therfore two instances of calling:
  ip li add vxlan%d vxlan ...
could collide and create two devices with same name.

To fix this defer creation of socket to a work queue, and
handle possible races there. Introduce a lock to ensure that
changes to vxlan socket hash list is SMP safe.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 1f2aa26..71da8be 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -94,6 +94,7 @@ struct vxlan_sock {
 struct vxlan_net {
 	struct list_head  vxlan_list;
 	struct hlist_head sock_list[PORT_HASH_SIZE];
+	spinlock_t	  sock_lock;
 };
 
 struct vxlan_rdst {
@@ -131,7 +132,9 @@ struct vxlan_dev {
 	__u8		  ttl;
 	u32		  flags;	/* VXLAN_F_* below */
 
+	struct work_struct sock_work;
 	struct work_struct igmp_work;
+
 	unsigned long	  age_interval;
 	struct timer_list age_timer;
 	spinlock_t	  hash_lock;
@@ -151,6 +154,8 @@ struct vxlan_dev {
 static u32 vxlan_salt __read_mostly;
 static struct workqueue_struct *vxlan_wq;
 
+static void vxlan_sock_work(struct work_struct *work);
+
 /* Virtual Network hash table head */
 static inline struct hlist_head *vni_head(struct vxlan_sock *vs, u32 id)
 {
@@ -670,12 +675,15 @@ static void vxlan_sock_hold(struct vxlan_sock *vs)
 	atomic_inc(&vs->refcnt);
 }
 
-static void vxlan_sock_release(struct vxlan_sock *vs)
+static void vxlan_sock_release(struct vxlan_net *vn, struct vxlan_sock *vs)
 {
 	if (!atomic_dec_and_test(&vs->refcnt))
 		return;
 
+	spin_lock(&vn->sock_lock);
 	hlist_del_rcu(&vs->hlist);
+	spin_unlock(&vn->sock_lock);
+
 	queue_work(vxlan_wq, &vs->del_work);
 }
 
@@ -700,7 +708,7 @@ static void vxlan_igmp_work(struct work_struct *work)
 		ip_mc_leave_group(sk, &mreq);
 	release_sock(sk);
 
-	vxlan_sock_release(vs);
+	vxlan_sock_release(vn, vs);
 	dev_put(vxlan->dev);
 }
 
@@ -1222,10 +1230,29 @@ static void vxlan_cleanup(unsigned long arg)
 /* Setup stats when device is created */
 static int vxlan_init(struct net_device *dev)
 {
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
+	struct vxlan_sock *vs;
+	__u32 vni = vxlan->default_dst.remote_vni;
+
 	dev->tstats = alloc_percpu(struct pcpu_tstats);
 	if (!dev->tstats)
 		return -ENOMEM;
 
+	spin_lock(&vn->sock_lock);
+	vs = vxlan_find_port(dev_net(dev), vxlan->dst_port);
+	if (vs) {
+		/* If we have a socket with same port already, reuse it */
+		atomic_inc(&vs->refcnt);
+		vxlan->vn_sock = vs;
+		hlist_add_head_rcu(&vxlan->hlist, vni_head(vs, vni));
+	} else {
+		/* otherwise make new socket outside of RTNL */
+		dev_hold(dev);
+		queue_work(vxlan_wq, &vxlan->sock_work);
+	}
+	spin_unlock(&vn->sock_lock);
+
 	return 0;
 }
 
@@ -1233,9 +1260,14 @@ static int vxlan_init(struct net_device *dev)
 static int vxlan_open(struct net_device *dev)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_sock *vs = vxlan->vn_sock;
+
+	/* socket hasn't been created */
+	if (!vs)
+		return -ENOTCONN;
 
 	if (IN_MULTICAST(ntohl(vxlan->default_dst.remote_ip))) {
-		vxlan_sock_hold(vxlan->vn_sock);
+		vxlan_sock_hold(vs);
 		dev_hold(dev);
 		queue_work(vxlan_wq, &vxlan->igmp_work);
 	}
@@ -1267,9 +1299,10 @@ static void vxlan_flush(struct vxlan_dev *vxlan)
 static int vxlan_stop(struct net_device *dev)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_sock *vs = vxlan->vn_sock;
 
-	if (IN_MULTICAST(ntohl(vxlan->default_dst.remote_ip))) {
-		vxlan_sock_hold(vxlan->vn_sock);
+	if (vs && IN_MULTICAST(ntohl(vxlan->default_dst.remote_ip))) {
+		vxlan_sock_hold(vs);
 		dev_hold(dev);
 		queue_work(vxlan_wq, &vxlan->igmp_work);
 	}
@@ -1342,6 +1375,7 @@ static void vxlan_setup(struct net_device *dev)
 	INIT_LIST_HEAD(&vxlan->next);
 	spin_lock_init(&vxlan->hash_lock);
 	INIT_WORK(&vxlan->igmp_work, vxlan_igmp_work);
+	INIT_WORK(&vxlan->sock_work, vxlan_sock_work);
 
 	init_timer_deferrable(&vxlan->age_timer);
 	vxlan->age_timer.function = vxlan_cleanup;
@@ -1433,7 +1467,6 @@ static void vxlan_del_work(struct work_struct *work)
 	kfree_rcu(vs, rcu);
 }
 
-/* Create new listen socket if needed */
 static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port)
 {
 	struct vxlan_sock *vs;
@@ -1490,13 +1523,52 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port)
 	return vs;
 }
 
+/* Scheduled at device creation to bind to a socket */
+static void vxlan_sock_work(struct work_struct *work)
+{
+	struct vxlan_dev *vxlan
+		= container_of(work, struct vxlan_dev, sock_work);
+	struct net_device *dev = vxlan->dev;
+	struct net *net = dev_net(dev);
+	__u32 vni = vxlan->default_dst.remote_vni;
+	__be16 port = vxlan->dst_port;
+	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
+	struct vxlan_sock *nvs, *ovs;
+
+	nvs = vxlan_socket_create(net, port);
+	if (IS_ERR(nvs)) {
+		netdev_err(vxlan->dev, "Can not create UDP socket, %ld\n",
+			   PTR_ERR(nvs));
+		goto out;
+	}
+
+	spin_lock(&vn->sock_lock);
+	/* Look again to see if can reuse socket */
+	ovs = vxlan_find_port(net, port);
+	if (ovs) {
+		atomic_inc(&ovs->refcnt);
+		vxlan->vn_sock = ovs;
+		hlist_add_head_rcu(&vxlan->hlist, vni_head(ovs, vni));
+		spin_unlock(&vn->sock_lock);
+
+		sk_release_kernel(nvs->sock->sk);
+		kfree(nvs);
+	} else {
+		vxlan->vn_sock = nvs;
+		hlist_add_head_rcu(&nvs->hlist, vs_head(net, port));
+		hlist_add_head_rcu(&vxlan->hlist, vni_head(nvs, vni));
+		spin_unlock(&vn->sock_lock);
+	}
+out:
+	dev_put(dev);
+}
+
 static int vxlan_newlink(struct net *net, struct net_device *dev,
 			 struct nlattr *tb[], struct nlattr *data[])
 {
 	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_rdst *dst = &vxlan->default_dst;
-	struct vxlan_sock *vs;
 	__u32 vni;
 	int err;
 
@@ -1574,31 +1646,13 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 		return -EEXIST;
 	}
 
-	vs = vxlan_find_port(net, vxlan->dst_port);
-	if (vs)
-		atomic_inc(&vs->refcnt);
-	else {
-		/* Drop lock because socket create acquires RTNL lock */
-		rtnl_unlock();
-		vs = vxlan_socket_create(net, vxlan->dst_port);
-		rtnl_lock();
-		if (IS_ERR(vs))
-			return PTR_ERR(vs);
-
-		hlist_add_head_rcu(&vs->hlist, vs_head(net, vxlan->dst_port));
-	}
-	vxlan->vn_sock = vs;
-
 	SET_ETHTOOL_OPS(dev, &vxlan_ethtool_ops);
 
 	err = register_netdevice(dev);
-	if (err) {
-		vxlan_sock_release(vs);
+	if (err)
 		return err;
-	}
 
 	list_add(&vxlan->next, &vn->vxlan_list);
-	hlist_add_head_rcu(&vxlan->hlist, vni_head(vs, vni));
 
 	return 0;
 }
@@ -1606,12 +1660,14 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 static void vxlan_dellink(struct net_device *dev, struct list_head *head)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
 	struct vxlan_sock *vs = vxlan->vn_sock;
 
 	hlist_del_rcu(&vxlan->hlist);
 	list_del(&vxlan->next);
 	unregister_netdevice_queue(dev, head);
-	vxlan_sock_release(vs);
+	if (vs)
+		vxlan_sock_release(vn, vs);
 }
 
 static size_t vxlan_get_size(const struct net_device *dev)
@@ -1700,6 +1756,7 @@ static __net_init int vxlan_init_net(struct net *net)
 	unsigned int h;
 
 	INIT_LIST_HEAD(&vn->vxlan_list);
+	spin_lock_init(&vn->sock_lock);
 
 	for (h = 0; h < PORT_HASH_SIZE; ++h)
 		INIT_HLIST_HEAD(&vn->sock_list[h]);
-- 
cgit v0.10.2


From ebf4063e869d959daf75efb4ef1c7bc80dcd4800 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:11 -0700
Subject: vxlan: move cleanup to uninit

Put destruction of per-cpu statistics removal in
ndo_uninit since it is created by ndo_init.
This also avoids any problems that might be cause by destructor
being called after module removed.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 71da8be..500f9ce 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1256,6 +1256,17 @@ static int vxlan_init(struct net_device *dev)
 	return 0;
 }
 
+static void vxlan_uninit(struct net_device *dev)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
+	struct vxlan_sock *vs = vxlan->vn_sock;
+
+	if (vs)
+		vxlan_sock_release(vn, vs);
+	free_percpu(dev->tstats);
+}
+
 /* Start ageing timer and join group when device is brought up */
 static int vxlan_open(struct net_device *dev)
 {
@@ -1321,6 +1332,7 @@ static void vxlan_set_multicast_list(struct net_device *dev)
 
 static const struct net_device_ops vxlan_netdev_ops = {
 	.ndo_init		= vxlan_init,
+	.ndo_uninit		= vxlan_uninit,
 	.ndo_open		= vxlan_open,
 	.ndo_stop		= vxlan_stop,
 	.ndo_start_xmit		= vxlan_xmit,
@@ -1339,12 +1351,6 @@ static struct device_type vxlan_type = {
 	.name = "vxlan",
 };
 
-static void vxlan_free(struct net_device *dev)
-{
-	free_percpu(dev->tstats);
-	free_netdev(dev);
-}
-
 /* Initialize the device structure. */
 static void vxlan_setup(struct net_device *dev)
 {
@@ -1357,7 +1363,7 @@ static void vxlan_setup(struct net_device *dev)
 	dev->hard_header_len = ETH_HLEN + VXLAN_HEADROOM;
 
 	dev->netdev_ops = &vxlan_netdev_ops;
-	dev->destructor = vxlan_free;
+	dev->destructor = free_netdev;
 	SET_NETDEV_DEVTYPE(dev, &vxlan_type);
 
 	dev->tx_queue_len = 0;
@@ -1660,14 +1666,10 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 static void vxlan_dellink(struct net_device *dev, struct list_head *head)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
-	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
-	struct vxlan_sock *vs = vxlan->vn_sock;
 
 	hlist_del_rcu(&vxlan->hlist);
 	list_del(&vxlan->next);
 	unregister_netdevice_queue(dev, head);
-	if (vs)
-		vxlan_sock_release(vn, vs);
 }
 
 static size_t vxlan_get_size(const struct net_device *dev)
-- 
cgit v0.10.2


From 4ad169300a7350a034b86c543070aed109882a86 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:11 -0700
Subject: vxlan: make vxlan_xmit_one void

The function vxlan_xmit_one always returns NETDEV_TX_OK, so there
is no point in keeping track of return values etc.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David L Stevens <dlstevens@us.ibm.com>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 500f9ce..e65241c 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1008,8 +1008,8 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan,
 	}
 }
 
-static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
-				  struct vxlan_rdst *rdst, bool did_rsc)
+static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
+			   struct vxlan_rdst *rdst, bool did_rsc)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct rtable *rt;
@@ -1032,7 +1032,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 		if (did_rsc) {
 			/* short-circuited back to local bridge */
 			vxlan_encap_bypass(skb, vxlan, vxlan);
-			return NETDEV_TX_OK;
+			return;
 		}
 		goto drop;
 	}
@@ -1088,7 +1088,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 		if (!dst_vxlan)
 			goto tx_error;
 		vxlan_encap_bypass(skb, vxlan, dst_vxlan);
-		return NETDEV_TX_OK;
+		return;
 	}
 	vxh = (struct vxlanhdr *) __skb_push(skb, sizeof(*vxh));
 	vxh->vx_flags = htonl(VXLAN_FLAGS);
@@ -1116,7 +1116,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 			    IPPROTO_UDP, tos, ttl, df);
 	iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
 
-	return NETDEV_TX_OK;
+	return;
 
 drop:
 	dev->stats.tx_dropped++;
@@ -1126,7 +1126,6 @@ tx_error:
 	dev->stats.tx_errors++;
 tx_free:
 	dev_kfree_skb(skb);
-	return NETDEV_TX_OK;
 }
 
 /* Transmit local packets over Vxlan
@@ -1142,7 +1141,6 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 	bool did_rsc = false;
 	struct vxlan_rdst *rdst0, *rdst;
 	struct vxlan_fdb *f;
-	int rc1, rc;
 
 	skb_reset_mac_header(skb);
 	eth = eth_hdr(skb);
@@ -1170,24 +1168,18 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 	} else
 		rdst0 = &f->remote;
 
-	rc = NETDEV_TX_OK;
 
 	/* if there are multiple destinations, send copies */
 	for (rdst = rdst0->remote_next; rdst; rdst = rdst->remote_next) {
 		struct sk_buff *skb1;
 
 		skb1 = skb_clone(skb, GFP_ATOMIC);
-		if (skb1) {
-			rc1 = vxlan_xmit_one(skb1, dev, rdst, did_rsc);
-			if (rc == NETDEV_TX_OK)
-				rc = rc1;
-		}
+		if (skb1)
+			vxlan_xmit_one(skb1, dev, rdst, did_rsc);
 	}
 
-	rc1 = vxlan_xmit_one(skb, dev, rdst0, did_rsc);
-	if (rc == NETDEV_TX_OK)
-		rc = rc1;
-	return rc;
+	vxlan_xmit_one(skb, dev, rdst0, did_rsc);
+	return NETDEV_TX_OK;
 }
 
 /* Walk the forwarding table and purge stale entries */
-- 
cgit v0.10.2


From 3e61aa8f0a68e6e007c223688f442be04a44b0f4 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:12 -0700
Subject: vxlan: convert remotes list to list_rcu

Based on initial work by Mike Rapoport <mike.rapoport@ravellosystems.com>
Use list macros and RCU for tracking multiple remotes.

Note: this code assumes list always has at least one entry,
because delete is not supported.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index e65241c..117b7fa 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -102,7 +102,7 @@ struct vxlan_rdst {
 	__be16			 remote_port;
 	u32			 remote_vni;
 	u32			 remote_ifindex;
-	struct vxlan_rdst	*remote_next;
+	struct list_head	 list;
 };
 
 /* Forwarding table entry */
@@ -111,7 +111,7 @@ struct vxlan_fdb {
 	struct rcu_head	  rcu;
 	unsigned long	  updated;	/* jiffies */
 	unsigned long	  used;
-	struct vxlan_rdst remote;
+	struct list_head  remotes;
 	u16		  state;	/* see ndm_state */
 	u8		  flags;	/* see ndm_flags */
 	u8		  eth_addr[ETH_ALEN];
@@ -170,6 +170,14 @@ static inline struct hlist_head *vs_head(struct net *net, __be16 port)
 	return &vn->sock_list[hash_32(ntohs(port), PORT_HASH_BITS)];
 }
 
+/* First remote destination for a forwarding entry.
+ * Guaranteed to be non-NULL because remotes are never deleted.
+ */
+static inline struct vxlan_rdst *first_remote(struct vxlan_fdb *fdb)
+{
+	return list_first_or_null_rcu(&fdb->remotes, struct vxlan_rdst, list);
+}
+
 /* Find VXLAN socket based on network namespace and UDP port */
 static struct vxlan_sock *vxlan_find_port(struct net *net, __be16 port)
 {
@@ -275,7 +283,7 @@ static inline size_t vxlan_nlmsg_size(void)
 }
 
 static void vxlan_fdb_notify(struct vxlan_dev *vxlan,
-			     const struct vxlan_fdb *fdb, int type)
+			     struct vxlan_fdb *fdb, int type)
 {
 	struct net *net = dev_net(vxlan->dev);
 	struct sk_buff *skb;
@@ -285,7 +293,7 @@ static void vxlan_fdb_notify(struct vxlan_dev *vxlan,
 	if (skb == NULL)
 		goto errout;
 
-	err = vxlan_fdb_info(skb, vxlan, fdb, 0, 0, type, 0, &fdb->remote);
+	err = vxlan_fdb_info(skb, vxlan, fdb, 0, 0, type, 0, first_remote(fdb));
 	if (err < 0) {
 		/* -EMSGSIZE implies BUG in vxlan_nlmsg_size() */
 		WARN_ON(err == -EMSGSIZE);
@@ -304,11 +312,16 @@ static void vxlan_ip_miss(struct net_device *dev, __be32 ipa)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_fdb f;
+	struct vxlan_rdst remote;
 
 	memset(&f, 0, sizeof f);
 	f.state = NUD_STALE;
-	f.remote.remote_ip = ipa; /* goes to NDA_DST */
-	f.remote.remote_vni = VXLAN_N_VID;
+
+	remote.remote_ip = ipa; /* goes to NDA_DST */
+	remote.remote_vni = VXLAN_N_VID;
+
+	INIT_LIST_HEAD(&f.remotes);
+	list_add_rcu(&remote.list, &f.remotes);
 
 	vxlan_fdb_notify(vxlan, &f, RTM_GETNEIGH);
 }
@@ -318,6 +331,7 @@ static void vxlan_fdb_miss(struct vxlan_dev *vxlan, const u8 eth_addr[ETH_ALEN])
 	struct vxlan_fdb	f;
 
 	memset(&f, 0, sizeof f);
+	INIT_LIST_HEAD(&f.remotes);
 	f.state = NUD_STALE;
 	memcpy(f.eth_addr, eth_addr, ETH_ALEN);
 
@@ -377,17 +391,17 @@ static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
 static int vxlan_fdb_append(struct vxlan_fdb *f,
 			    __be32 ip, __be16 port, __u32 vni, __u32 ifindex)
 {
-	struct vxlan_rdst *rd_prev, *rd;
+	struct vxlan_rdst *rd;
 
-	rd_prev = NULL;
-	for (rd = &f->remote; rd; rd = rd->remote_next) {
+	/* protected by vxlan->hash_lock */
+	list_for_each_entry(rd, &f->remotes, list) {
 		if (rd->remote_ip == ip &&
 		    rd->remote_port == port &&
 		    rd->remote_vni == vni &&
 		    rd->remote_ifindex == ifindex)
 			return 0;
-		rd_prev = rd;
 	}
+
 	rd = kmalloc(sizeof(*rd), GFP_ATOMIC);
 	if (rd == NULL)
 		return -ENOBUFS;
@@ -395,8 +409,9 @@ static int vxlan_fdb_append(struct vxlan_fdb *f,
 	rd->remote_port = port;
 	rd->remote_vni = vni;
 	rd->remote_ifindex = ifindex;
-	rd->remote_next = NULL;
-	rd_prev->remote_next = rd;
+
+	list_add_tail_rcu(&rd->list, &f->remotes);
+
 	return 1;
 }
 
@@ -448,16 +463,14 @@ static int vxlan_fdb_create(struct vxlan_dev *vxlan,
 			return -ENOMEM;
 
 		notify = 1;
-		f->remote.remote_ip = ip;
-		f->remote.remote_port = port;
-		f->remote.remote_vni = vni;
-		f->remote.remote_ifindex = ifindex;
-		f->remote.remote_next = NULL;
 		f->state = state;
 		f->flags = ndm_flags;
 		f->updated = f->used = jiffies;
+		INIT_LIST_HEAD(&f->remotes);
 		memcpy(f->eth_addr, mac, ETH_ALEN);
 
+		vxlan_fdb_append(f, ip, port, vni, ifindex);
+
 		++vxlan->addrcnt;
 		hlist_add_head_rcu(&f->hlist,
 				   vxlan_fdb_head(vxlan, mac));
@@ -472,13 +485,10 @@ static int vxlan_fdb_create(struct vxlan_dev *vxlan,
 static void vxlan_fdb_free(struct rcu_head *head)
 {
 	struct vxlan_fdb *f = container_of(head, struct vxlan_fdb, rcu);
+	struct vxlan_rdst *rd, *nd;
 
-	while (f->remote.remote_next) {
-		struct vxlan_rdst *rd = f->remote.remote_next;
-
-		f->remote.remote_next = rd->remote_next;
+	list_for_each_entry_safe(rd, nd, &f->remotes, list)
 		kfree(rd);
-	}
 	kfree(f);
 }
 
@@ -588,23 +598,24 @@ static int vxlan_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
 
 		hlist_for_each_entry_rcu(f, &vxlan->fdb_head[h], hlist) {
 			struct vxlan_rdst *rd;
-			for (rd = &f->remote; rd; rd = rd->remote_next) {
-				if (idx < cb->args[0])
-					goto skip;
 
+			if (idx < cb->args[0])
+				goto skip;
+
+			list_for_each_entry_rcu(rd, &f->remotes, list) {
 				err = vxlan_fdb_info(skb, vxlan, f,
 						     NETLINK_CB(cb->skb).portid,
 						     cb->nlh->nlmsg_seq,
 						     RTM_NEWNEIGH,
 						     NLM_F_MULTI, rd);
 				if (err < 0)
-					break;
-skip:
-				++idx;
+					goto out;
 			}
+skip:
+			++idx;
 		}
 	}
-
+out:
 	return idx;
 }
 
@@ -620,7 +631,9 @@ static bool vxlan_snoop(struct net_device *dev,
 
 	f = vxlan_find_mac(vxlan, src_mac);
 	if (likely(f)) {
-		if (likely(f->remote.remote_ip == src_ip))
+		struct vxlan_rdst *rdst = first_remote(f);
+
+		if (likely(rdst->remote_ip == src_ip))
 			return false;
 
 		/* Don't migrate static entries, drop packets */
@@ -630,9 +643,9 @@ static bool vxlan_snoop(struct net_device *dev,
 		if (net_ratelimit())
 			netdev_info(dev,
 				    "%pM migrated from %pI4 to %pI4\n",
-				    src_mac, &f->remote.remote_ip, &src_ip);
+				    src_mac, &rdst->remote_ip, &src_ip);
 
-		f->remote.remote_ip = src_ip;
+		rdst->remote_ip = src_ip;
 		f->updated = jiffies;
 		vxlan_fdb_notify(vxlan, f, RTM_NEWNEIGH);
 	} else {
@@ -866,7 +879,7 @@ static int arp_reduce(struct net_device *dev, struct sk_buff *skb)
 		}
 
 		f = vxlan_find_mac(vxlan, n->ha);
-		if (f && f->remote.remote_ip == htonl(INADDR_ANY)) {
+		if (f && first_remote(f)->remote_ip == htonl(INADDR_ANY)) {
 			/* bridge-local neighbor */
 			neigh_release(n);
 			goto out;
@@ -1165,17 +1178,17 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 		    (vxlan->flags & VXLAN_F_L2MISS) &&
 		    !is_multicast_ether_addr(eth->h_dest))
 			vxlan_fdb_miss(vxlan, eth->h_dest);
-	} else
-		rdst0 = &f->remote;
-
+	} else {
+		rdst = rdst0 = first_remote(f);
 
-	/* if there are multiple destinations, send copies */
-	for (rdst = rdst0->remote_next; rdst; rdst = rdst->remote_next) {
-		struct sk_buff *skb1;
+		/* if there are multiple destinations, send copies */
+		list_for_each_entry_continue_rcu(rdst, &f->remotes, list) {
+			struct sk_buff *skb1;
 
-		skb1 = skb_clone(skb, GFP_ATOMIC);
-		if (skb1)
-			vxlan_xmit_one(skb1, dev, rdst, did_rsc);
+			skb1 = skb_clone(skb, GFP_ATOMIC);
+			if (skb1)
+				vxlan_xmit_one(skb1, dev, rdst, did_rsc);
+		}
 	}
 
 	vxlan_xmit_one(skb, dev, rdst0, did_rsc);
-- 
cgit v0.10.2


From 9daaa397b3e18282715eeb0d7be79ea5bbadc119 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:12 -0700
Subject: vxlan: port module param should be ushort

UDP ports are limited to 16 bits.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 117b7fa..f89a58b 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -70,8 +70,8 @@ struct vxlanhdr {
  * The IANA assigned port is 4789, but the Linux default is 8472
  * for compatability with early adopters.
  */
-static unsigned int vxlan_port __read_mostly = 8472;
-module_param_named(udp_port, vxlan_port, uint, 0444);
+static unsigned short vxlan_port __read_mostly = 8472;
+module_param_named(udp_port, vxlan_port, ushort, 0444);
 MODULE_PARM_DESC(udp_port, "Destination UDP port");
 
 static bool log_ecn_error = true;
-- 
cgit v0.10.2


From bb3fd6878a983f36c994bfbd71b01b2625ddf52b Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:40 -0700
Subject: vxlan: Use initializer for dummy structures

For the notification code, a couple of places build fdb entries on
the stack, use structure initialization instead and fix formatting.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index f89a58b..d2b9ab7 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -311,14 +311,13 @@ errout:
 static void vxlan_ip_miss(struct net_device *dev, __be32 ipa)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
-	struct vxlan_fdb f;
-	struct vxlan_rdst remote;
-
-	memset(&f, 0, sizeof f);
-	f.state = NUD_STALE;
-
-	remote.remote_ip = ipa; /* goes to NDA_DST */
-	remote.remote_vni = VXLAN_N_VID;
+	struct vxlan_fdb f = {
+		.state = NUD_STALE,
+	};
+	struct vxlan_rdst remote = {
+		.remote_ip = ipa, /* goes to NDA_DST */
+		.remote_vni = VXLAN_N_VID,
+	};
 
 	INIT_LIST_HEAD(&f.remotes);
 	list_add_rcu(&remote.list, &f.remotes);
@@ -328,11 +327,11 @@ static void vxlan_ip_miss(struct net_device *dev, __be32 ipa)
 
 static void vxlan_fdb_miss(struct vxlan_dev *vxlan, const u8 eth_addr[ETH_ALEN])
 {
-	struct vxlan_fdb	f;
+	struct vxlan_fdb f = {
+		.state = NUD_STALE,
+	};
 
-	memset(&f, 0, sizeof f);
 	INIT_LIST_HEAD(&f.remotes);
-	f.state = NUD_STALE;
 	memcpy(f.eth_addr, eth_addr, ETH_ALEN);
 
 	vxlan_fdb_notify(vxlan, &f, RTM_GETNEIGH);
@@ -1485,6 +1484,7 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port)
 	struct sockaddr_in vxlan_addr = {
 		.sin_family = AF_INET,
 		.sin_addr.s_addr = htonl(INADDR_ANY),
+		.sin_port = port,
 	};
 	int rc;
 	unsigned int h;
@@ -1510,8 +1510,6 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port)
 	sk = vs->sock->sk;
 	sk_change_net(sk, net);
 
-	vxlan_addr.sin_port = port;
-
 	rc = kernel_bind(vs->sock, (struct sockaddr *) &vxlan_addr,
 			 sizeof(vxlan_addr));
 	if (rc < 0) {
-- 
cgit v0.10.2


From 234f5b73794435f065c5fb13371415fe46956a4b Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 17 Jun 2013 14:16:41 -0700
Subject: vxlan: cosmetic cleanup's

Fix whitespace and spelling

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David L Stevens <dlstevens@us.ibm.com>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index d2b9ab7..3b03cd4 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -68,7 +68,7 @@ struct vxlanhdr {
 
 /* UDP port for VXLAN traffic.
  * The IANA assigned port is 4789, but the Linux default is 8472
- * for compatability with early adopters.
+ * for compatibility with early adopters.
  */
 static unsigned short vxlan_port __read_mostly = 8472;
 module_param_named(udp_port, vxlan_port, ushort, 0444);
@@ -210,9 +210,9 @@ static struct vxlan_dev *vxlan_find_vni(struct net *net, u32 id, __be16 port)
 
 /* Fill in neighbour message in skbuff. */
 static int vxlan_fdb_info(struct sk_buff *skb, struct vxlan_dev *vxlan,
-			   const struct vxlan_fdb *fdb,
-			   u32 portid, u32 seq, int type, unsigned int flags,
-			   const struct vxlan_rdst *rdst)
+			  const struct vxlan_fdb *fdb,
+			  u32 portid, u32 seq, int type, unsigned int flags,
+			  const struct vxlan_rdst *rdst)
 {
 	unsigned long now = jiffies;
 	struct nda_cacheinfo ci;
@@ -1031,7 +1031,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 	struct flowi4 fl4;
 	__be32 dst;
 	__be16 src_port, dst_port;
-        u32 vni;
+	u32 vni;
 	__be16 df = 0;
 	__u8 tos, ttl;
 	int err;
-- 
cgit v0.10.2


From 156652bbedfbc0f3410759ccebe5c94edb7ce6c3 Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 19 Jun 2013 14:02:14 -0700
Subject: ath9k_htc: Support reporting tx and rx chain mask.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 6958103..6bd556d 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -583,6 +583,8 @@ bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
 void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
 void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);
 
+struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv);
+
 #ifdef CONFIG_MAC80211_LEDS
 void ath9k_init_leds(struct ath9k_htc_priv *priv);
 void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
index 87110de5..632d13d 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
@@ -496,21 +496,7 @@ static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
 	ssize_t retval = 0;
 	char *buf;
 
-	/*
-	 * This can be done since all the 3 EEPROM families have the
-	 * same base header upto a certain point, and we are interested in
-	 * the data only upto that point.
-	 */
-
-	if (AR_SREV_9271(priv->ah))
-		pBase = (struct base_eep_header *)
-			&priv->ah->eeprom.map4k.baseEepHeader;
-	else if (priv->ah->hw_version.usbdev == AR9280_USB)
-		pBase = (struct base_eep_header *)
-			&priv->ah->eeprom.def.baseEepHeader;
-	else if (priv->ah->hw_version.usbdev == AR9287_USB)
-		pBase = (struct base_eep_header *)
-			&priv->ah->eeprom.map9287.baseEepHeader;
+	pBase = ath9k_htc_get_eeprom_base(priv);
 
 	if (pBase == NULL) {
 		ath_err(common, "Unknown EEPROM type\n");
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index bb0ba9e..925c5b0 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -716,6 +716,7 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 			       struct ieee80211_hw *hw)
 {
 	struct ath_common *common = ath9k_hw_common(priv->ah);
+	struct base_eep_header *pBase;
 
 	hw->flags = IEEE80211_HW_SIGNAL_DBM |
 		IEEE80211_HW_AMPDU_AGGREGATION |
@@ -771,6 +772,12 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
 				     &priv->sbands[IEEE80211_BAND_5GHZ].ht_cap);
 	}
 
+	pBase = ath9k_htc_get_eeprom_base(priv);
+	if (pBase) {
+		hw->wiphy->available_antennas_rx = pBase->rxMask;
+		hw->wiphy->available_antennas_tx = pBase->txMask;
+	}
+
 	SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index eaa94fe..ef68857 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1774,6 +1774,43 @@ static int ath9k_htc_get_stats(struct ieee80211_hw *hw,
 	return 0;
 }
 
+struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv)
+{
+	struct base_eep_header *pBase = NULL;
+	/*
+	 * This can be done since all the 3 EEPROM families have the
+	 * same base header upto a certain point, and we are interested in
+	 * the data only upto that point.
+	 */
+
+	if (AR_SREV_9271(priv->ah))
+		pBase = (struct base_eep_header *)
+			&priv->ah->eeprom.map4k.baseEepHeader;
+	else if (priv->ah->hw_version.usbdev == AR9280_USB)
+		pBase = (struct base_eep_header *)
+			&priv->ah->eeprom.def.baseEepHeader;
+	else if (priv->ah->hw_version.usbdev == AR9287_USB)
+		pBase = (struct base_eep_header *)
+			&priv->ah->eeprom.map9287.baseEepHeader;
+	return pBase;
+}
+
+
+static int ath9k_htc_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant,
+				 u32 *rx_ant)
+{
+	struct ath9k_htc_priv *priv = hw->priv;
+	struct base_eep_header *pBase = ath9k_htc_get_eeprom_base(priv);
+	if (pBase) {
+		*tx_ant = pBase->txMask;
+		*rx_ant = pBase->rxMask;
+	} else {
+		*tx_ant = 0;
+		*rx_ant = 0;
+	}
+	return 0;
+}
+
 struct ieee80211_ops ath9k_htc_ops = {
 	.tx                 = ath9k_htc_tx,
 	.start              = ath9k_htc_start,
@@ -1799,4 +1836,5 @@ struct ieee80211_ops ath9k_htc_ops = {
 	.set_coverage_class = ath9k_htc_set_coverage_class,
 	.set_bitrate_mask   = ath9k_htc_set_bitrate_mask,
 	.get_stats	    = ath9k_htc_get_stats,
+	.get_antenna	    = ath9k_htc_get_antenna,
 };
-- 
cgit v0.10.2


From 68185a4b37d8790196c7441cb3020cc489d9835f Mon Sep 17 00:00:00 2001
From: Ben Greear <greearb@candelatech.com>
Date: Wed, 19 Jun 2013 14:02:15 -0700
Subject: ath9k_htc: Add ethtool stats support.

This provides some of the same info found in
the ath9k_htc debugfs through the standard ethtool stats API.

This logic is only supported when ath9k_htc debugfs kernel
feature is enabled, since that is the only time stats
are actually gathered.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index f5dda84..9e582e1 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -234,10 +234,15 @@ static inline void ath9k_skb_queue_complete(struct hif_device_usb *hif_dev,
 	struct sk_buff *skb;
 
 	while ((skb = __skb_dequeue(queue)) != NULL) {
+#ifdef CONFIG_ATH9K_HTC_DEBUGFS
+		int ln = skb->len;
+#endif
 		ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
 					  skb, txok);
-		if (txok)
+		if (txok) {
 			TX_STAT_INC(skb_success);
+			TX_STAT_ADD(skb_success_bytes, ln);
+		}
 		else
 			TX_STAT_INC(skb_failed);
 	}
@@ -620,6 +625,7 @@ static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
 
 err:
 	for (i = 0; i < pool_index; i++) {
+		RX_STAT_ADD(skb_completed_bytes, skb_pool[i]->len);
 		ath9k_htc_rx_msg(hif_dev->htc_handle, skb_pool[i],
 				 skb_pool[i]->len, USB_WLAN_RX_PIPE);
 		RX_STAT_INC(skb_completed);
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 6bd556d..055d7c2 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -324,7 +324,9 @@ static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
 
 #define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
+#define TX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a)
 #define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
+#define RX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c += a)
 #define CAB_STAT_INC   priv->debug.tx_stats.cab_queued++
 
 #define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)
@@ -337,6 +339,7 @@ struct ath_tx_stats {
 	u32 buf_completed;
 	u32 skb_queued;
 	u32 skb_success;
+	u32 skb_success_bytes;
 	u32 skb_failed;
 	u32 cab_queued;
 	u32 queue_stats[IEEE80211_NUM_ACS];
@@ -345,6 +348,7 @@ struct ath_tx_stats {
 struct ath_rx_stats {
 	u32 skb_allocated;
 	u32 skb_completed;
+	u32 skb_completed_bytes;
 	u32 skb_dropped;
 	u32 err_crc;
 	u32 err_decrypt_crc;
@@ -362,10 +366,20 @@ struct ath9k_debug {
 	struct ath_rx_stats rx_stats;
 };
 
+void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif,
+			      u32 sset, u8 *data);
+int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif, int sset);
+void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif,
+			    struct ethtool_stats *stats, u64 *data);
 #else
 
 #define TX_STAT_INC(c) do { } while (0)
+#define TX_STAT_ADD(c, a) do { } while (0)
 #define RX_STAT_INC(c) do { } while (0)
+#define RX_STAT_ADD(c, a) do { } while (0)
 #define CAB_STAT_INC   do { } while (0)
 
 #define TX_QSTAT_INC(c) do { } while (0)
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
index 632d13d..7416d58 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
@@ -902,6 +902,87 @@ static const struct file_operations fops_modal_eeprom = {
 	.llseek = default_llseek,
 };
 
+
+/* Ethtool support for get-stats */
+#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
+static const char ath9k_htc_gstrings_stats[][ETH_GSTRING_LEN] = {
+	"tx_pkts_nic",
+	"tx_bytes_nic",
+	"rx_pkts_nic",
+	"rx_bytes_nic",
+
+	AMKSTR(d_tx_pkts),
+
+	"d_rx_crc_err",
+	"d_rx_decrypt_crc_err",
+	"d_rx_phy_err",
+	"d_rx_mic_err",
+	"d_rx_pre_delim_crc_err",
+	"d_rx_post_delim_crc_err",
+	"d_rx_decrypt_busy_err",
+
+	"d_rx_phyerr_radar",
+	"d_rx_phyerr_ofdm_timing",
+	"d_rx_phyerr_cck_timing",
+
+};
+#define ATH9K_HTC_SSTATS_LEN ARRAY_SIZE(ath9k_htc_gstrings_stats)
+
+void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif,
+			      u32 sset, u8 *data)
+{
+	if (sset == ETH_SS_STATS)
+		memcpy(data, *ath9k_htc_gstrings_stats,
+		       sizeof(ath9k_htc_gstrings_stats));
+}
+
+int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif, int sset)
+{
+	if (sset == ETH_SS_STATS)
+		return ATH9K_HTC_SSTATS_LEN;
+	return 0;
+}
+
+#define STXBASE priv->debug.tx_stats
+#define SRXBASE priv->debug.rx_stats
+#define ASTXQ(a)					\
+	data[i++] = STXBASE.a[IEEE80211_AC_BE];		\
+	data[i++] = STXBASE.a[IEEE80211_AC_BK];		\
+	data[i++] = STXBASE.a[IEEE80211_AC_VI];		\
+	data[i++] = STXBASE.a[IEEE80211_AC_VO]
+
+void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif,
+			    struct ethtool_stats *stats, u64 *data)
+{
+	struct ath9k_htc_priv *priv = hw->priv;
+	int i = 0;
+
+	data[i++] = STXBASE.skb_success;
+	data[i++] = STXBASE.skb_success_bytes;
+	data[i++] = SRXBASE.skb_completed;
+	data[i++] = SRXBASE.skb_completed_bytes;
+
+	ASTXQ(queue_stats);
+
+	data[i++] = SRXBASE.err_crc;
+	data[i++] = SRXBASE.err_decrypt_crc;
+	data[i++] = SRXBASE.err_phy;
+	data[i++] = SRXBASE.err_mic;
+	data[i++] = SRXBASE.err_pre_delim;
+	data[i++] = SRXBASE.err_post_delim;
+	data[i++] = SRXBASE.err_decrypt_busy;
+
+	data[i++] = SRXBASE.err_phy_stats[ATH9K_PHYERR_RADAR];
+	data[i++] = SRXBASE.err_phy_stats[ATH9K_PHYERR_OFDM_TIMING];
+	data[i++] = SRXBASE.err_phy_stats[ATH9K_PHYERR_CCK_TIMING];
+
+	WARN_ON(i != ATH9K_HTC_SSTATS_LEN);
+}
+
+
 int ath9k_htc_init_debug(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index ef68857..be6baf7 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1837,4 +1837,10 @@ struct ieee80211_ops ath9k_htc_ops = {
 	.set_bitrate_mask   = ath9k_htc_set_bitrate_mask,
 	.get_stats	    = ath9k_htc_get_stats,
 	.get_antenna	    = ath9k_htc_get_antenna,
+
+#ifdef CONFIG_ATH9K_HTC_DEBUGFS
+	.get_et_sset_count  = ath9k_htc_get_et_sset_count,
+	.get_et_stats       = ath9k_htc_get_et_stats,
+	.get_et_strings     = ath9k_htc_get_et_strings,
+#endif
 };
-- 
cgit v0.10.2


From f56e121df34563475f71efab38287b9ac028fe8c Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 20 Jun 2013 15:11:31 +0200
Subject: ath9k: fix queue depth accounting in ath_tx_txqaddbuf

ath_tx_txqaddbuf assumes that all the linked buffers in the queue passed
to it are part of the same A-MPDU or MPDU. The CAB queue rework violates
this assumption, which can cause the internal queue depth to go
negative.
Fix this by increasing the counter for all slots of [bf, bf->bf_lastbf]

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 7e19d9b..bfb58a5 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1778,9 +1778,13 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
 	}
 
 	if (!internal) {
-		txq->axq_depth++;
-		if (bf_is_ampdu_not_probing(bf))
-			txq->axq_ampdu_depth++;
+		while (bf) {
+			txq->axq_depth++;
+			if (bf_is_ampdu_not_probing(bf))
+				txq->axq_ampdu_depth++;
+
+			bf = bf->bf_lastbf->bf_next;
+		}
 	}
 }
 
-- 
cgit v0.10.2


From 5d9e3bc21c57d600b706a31454d5cf2f68c24f53 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 21 Jun 2013 10:42:19 +0800
Subject: ipw2200: fix error return code in ipw_load()

Fix to return -ENOMEM in the ipw_rx_queue_alloc() error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index d96257b..312fa0e 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -3548,6 +3548,7 @@ static int ipw_load(struct ipw_priv *priv)
 		ipw_rx_queue_reset(priv, priv->rxq);
 	if (!priv->rxq) {
 		IPW_ERROR("Unable to initialize Rx queue\n");
+		rc = -ENOMEM;
 		goto error;
 	}
 
-- 
cgit v0.10.2


From 7258416c517c79b2ebb30b61d8c6807a04dc6b25 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Thu, 20 Jun 2013 23:03:12 -0400
Subject: cw1200: Fix up a large pile of sparse warnings

Most of these relate to endianness problems, and are purely cosmetic.

But a couple of them were legit -- listen interval parsing and some of
the rate selection code would malfunction on BE systems.

There's still one cosmetic warning remaining, in the (admittedly) ugly
code in cw1200_spi.c.  It's there because the hardware needs 16-bit SPI
transfers, but many SPI controllers only operate 8 bits at a time.

If there's a cleaner way of handling this, I'm all ears.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/cw1200/cw1200.h b/drivers/net/wireless/cw1200/cw1200.h
index 243e963..1ad7d36 100644
--- a/drivers/net/wireless/cw1200/cw1200.h
+++ b/drivers/net/wireless/cw1200/cw1200.h
@@ -267,7 +267,7 @@ struct cw1200_common {
 	struct delayed_work	bss_loss_work;
 	spinlock_t		bss_loss_lock; /* Protect BSS loss state */
 	int                     bss_loss_state;
-	int                     bss_loss_confirm_id;
+	u32                     bss_loss_confirm_id;
 	int			delayed_link_loss;
 	struct work_struct	bss_params_work;
 
diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index 953bd19..d063760 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -61,7 +61,7 @@ static int cw1200_spi_memcpy_fromio(struct hwbus_priv *self,
 				     void *dst, int count)
 {
 	int ret, i;
-	uint16_t regaddr;
+	u16 regaddr;
 	struct spi_message      m;
 
 	struct spi_transfer     t_addr = {
@@ -76,15 +76,18 @@ static int cw1200_spi_memcpy_fromio(struct hwbus_priv *self,
 	regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
 	regaddr |= SET_READ;
 	regaddr |= (count>>1);
-	regaddr = cpu_to_le16(regaddr);
 
 #ifdef SPI_DEBUG
-	pr_info("READ : %04d from 0x%02x (%04x)\n", count, addr,
-		le16_to_cpu(regaddr));
+	pr_info("READ : %04d from 0x%02x (%04x)\n", count, addr, regaddr);
 #endif
 
+	/* Header is LE16 */
+	regaddr = cpu_to_le16(regaddr);
+
+	/* We have to byteswap if the SPI bus is limited to 8b operation
+	   or we are running on a Big Endian system
+	*/
 #if defined(__LITTLE_ENDIAN)
-	/* We have to byteswap if the SPI bus is limited to 8b operation */
 	if (self->func->bits_per_word == 8)
 #endif
 		regaddr = swab16(regaddr);
@@ -104,8 +107,10 @@ static int cw1200_spi_memcpy_fromio(struct hwbus_priv *self,
 	printk("\n");
 #endif
 
+	/* We have to byteswap if the SPI bus is limited to 8b operation
+	   or we are running on a Big Endian system
+	*/
 #if defined(__LITTLE_ENDIAN)
-	/* We have to byteswap if the SPI bus is limited to 8b operation */
 	if (self->func->bits_per_word == 8)
 #endif
 	{
@@ -122,7 +127,7 @@ static int cw1200_spi_memcpy_toio(struct hwbus_priv *self,
 				   const void *src, int count)
 {
 	int rval, i;
-	uint16_t regaddr;
+	u16 regaddr;
 	struct spi_transfer     t_addr = {
 		.tx_buf         = &regaddr,
 		.len            = sizeof(regaddr),
@@ -136,20 +141,23 @@ static int cw1200_spi_memcpy_toio(struct hwbus_priv *self,
 	regaddr = (SDIO_TO_SPI_ADDR(addr))<<12;
 	regaddr &= SET_WRITE;
 	regaddr |= (count>>1);
-	regaddr = cpu_to_le16(regaddr);
 
 #ifdef SPI_DEBUG
-	pr_info("WRITE: %04d  to  0x%02x (%04x)\n", count, addr,
-		le16_to_cpu(regaddr));
+	pr_info("WRITE: %04d  to  0x%02x (%04x)\n", count, addr, regaddr);
 #endif
 
+	/* Header is LE16 */
+	regaddr = cpu_to_le16(regaddr);
+
+	/* We have to byteswap if the SPI bus is limited to 8b operation
+	   or we are running on a Big Endian system
+	*/
 #if defined(__LITTLE_ENDIAN)
-	/* We have to byteswap if the SPI bus is limited to 8b operation */
 	if (self->func->bits_per_word == 8)
 #endif
 	{
 		uint16_t *buf = (uint16_t *)src;
-		regaddr = swab16(regaddr);
+	        regaddr = swab16(regaddr);
 		for (i = 0; i < ((count + 1) >> 1); i++)
 			buf[i] = swab16(buf[i]);
 	}
diff --git a/drivers/net/wireless/cw1200/hwio.c b/drivers/net/wireless/cw1200/hwio.c
index dad3fb3..ff230b7 100644
--- a/drivers/net/wireless/cw1200/hwio.c
+++ b/drivers/net/wireless/cw1200/hwio.c
@@ -69,31 +69,33 @@ static int __cw1200_reg_write(struct cw1200_common *priv, u16 addr,
 static inline int __cw1200_reg_read_32(struct cw1200_common *priv,
 					u16 addr, u32 *val)
 {
-	int i = __cw1200_reg_read(priv, addr, val, sizeof(*val), 0);
-	*val = le32_to_cpu(*val);
+	__le32 tmp;
+	int i = __cw1200_reg_read(priv, addr, &tmp, sizeof(tmp), 0);
+	*val = le32_to_cpu(tmp);
 	return i;
 }
 
 static inline int __cw1200_reg_write_32(struct cw1200_common *priv,
 					u16 addr, u32 val)
 {
-	val = cpu_to_le32(val);
-	return __cw1200_reg_write(priv, addr, &val, sizeof(val), 0);
+	__le32 tmp = cpu_to_le32(val);
+	return __cw1200_reg_write(priv, addr, &tmp, sizeof(tmp), 0);
 }
 
 static inline int __cw1200_reg_read_16(struct cw1200_common *priv,
 					u16 addr, u16 *val)
 {
-	int i = __cw1200_reg_read(priv, addr, val, sizeof(*val), 0);
-	*val = le16_to_cpu(*val);
+	__le16 tmp;
+	int i = __cw1200_reg_read(priv, addr, &tmp, sizeof(tmp), 0);
+	*val = le16_to_cpu(tmp);
 	return i;
 }
 
 static inline int __cw1200_reg_write_16(struct cw1200_common *priv,
 					u16 addr, u16 val)
 {
-	val = cpu_to_le16(val);
-	return __cw1200_reg_write(priv, addr, &val, sizeof(val), 0);
+	__le16 tmp = cpu_to_le16(val);
+	return __cw1200_reg_write(priv, addr, &tmp, sizeof(tmp), 0);
 }
 
 int cw1200_reg_read(struct cw1200_common *priv, u16 addr, void *buf,
diff --git a/drivers/net/wireless/cw1200/hwio.h b/drivers/net/wireless/cw1200/hwio.h
index 563329c..ddf5266 100644
--- a/drivers/net/wireless/cw1200/hwio.h
+++ b/drivers/net/wireless/cw1200/hwio.h
@@ -169,35 +169,34 @@ int cw1200_reg_write(struct cw1200_common *priv, u16 addr,
 static inline int cw1200_reg_read_16(struct cw1200_common *priv,
 				     u16 addr, u16 *val)
 {
-	u32 tmp;
+	__le32 tmp;
 	int i;
 	i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
-	tmp = le32_to_cpu(tmp);
-	*val = tmp & 0xffff;
+	*val = le32_to_cpu(tmp) & 0xfffff;
 	return i;
 }
 
 static inline int cw1200_reg_write_16(struct cw1200_common *priv,
 				      u16 addr, u16 val)
 {
-	u32 tmp = val;
-	tmp = cpu_to_le32(tmp);
+	__le32 tmp = cpu_to_le32((u32)val);
 	return cw1200_reg_write(priv, addr, &tmp, sizeof(tmp));
 }
 
 static inline int cw1200_reg_read_32(struct cw1200_common *priv,
 				     u16 addr, u32 *val)
 {
-	int i = cw1200_reg_read(priv, addr, val, sizeof(*val));
-	*val = le32_to_cpu(*val);
+	__le32 tmp;
+	int i = cw1200_reg_read(priv, addr, &tmp, sizeof(tmp));
+	*val = le32_to_cpu(tmp);
 	return i;
 }
 
 static inline int cw1200_reg_write_32(struct cw1200_common *priv,
 				      u16 addr, u32 val)
 {
-	val = cpu_to_le32(val);
-	return cw1200_reg_write(priv, addr, &val, sizeof(val));
+	__le32 tmp = cpu_to_le32(val);
+	return cw1200_reg_write(priv, addr, &tmp, sizeof(val));
 }
 
 int cw1200_indirect_read(struct cw1200_common *priv, u32 addr, void *buf,
@@ -224,22 +223,24 @@ static inline int cw1200_ahb_read(struct cw1200_common *priv, u32 addr,
 static inline int cw1200_apb_read_32(struct cw1200_common *priv,
 				     u32 addr, u32 *val)
 {
-	int i = cw1200_apb_read(priv, addr, val, sizeof(*val));
-	*val = le32_to_cpu(*val);
+	__le32 tmp;
+	int i = cw1200_apb_read(priv, addr, &tmp, sizeof(tmp));
+	*val = le32_to_cpu(tmp);
 	return i;
 }
 
 static inline int cw1200_apb_write_32(struct cw1200_common *priv,
 				      u32 addr, u32 val)
 {
-	val = cpu_to_le32(val);
-	return cw1200_apb_write(priv, addr, &val, sizeof(val));
+	__le32 tmp = cpu_to_le32(val);
+	return cw1200_apb_write(priv, addr, &tmp, sizeof(val));
 }
 static inline int cw1200_ahb_read_32(struct cw1200_common *priv,
 				     u32 addr, u32 *val)
 {
-	int i = cw1200_ahb_read(priv, addr, val, sizeof(*val));
-	*val = le32_to_cpu(*val);
+	__le32 tmp;
+	int i = cw1200_ahb_read(priv, addr, &tmp, sizeof(tmp));
+	*val = le32_to_cpu(tmp);
 	return i;
 }
 
diff --git a/drivers/net/wireless/cw1200/main.c b/drivers/net/wireless/cw1200/main.c
index da88503..3724e73 100644
--- a/drivers/net/wireless/cw1200/main.c
+++ b/drivers/net/wireless/cw1200/main.c
@@ -238,8 +238,8 @@ static const struct ieee80211_ops cw1200_ops = {
 	/*.cancel_remain_on_channel = cw1200_cancel_remain_on_channel,	*/
 };
 
-int cw1200_ba_rx_tids = -1;
-int cw1200_ba_tx_tids = -1;
+static int cw1200_ba_rx_tids = -1;
+static int cw1200_ba_tx_tids = -1;
 module_param(cw1200_ba_rx_tids, int, 0644);
 module_param(cw1200_ba_tx_tids, int, 0644);
 MODULE_PARM_DESC(cw1200_ba_rx_tids, "Block ACK RX TIDs");
diff --git a/drivers/net/wireless/cw1200/queue.c b/drivers/net/wireless/cw1200/queue.c
index 8510454..9c3925f 100644
--- a/drivers/net/wireless/cw1200/queue.c
+++ b/drivers/net/wireless/cw1200/queue.c
@@ -355,7 +355,7 @@ int cw1200_queue_get(struct cw1200_queue *queue,
 		*tx = (struct wsm_tx *)item->skb->data;
 		*tx_info = IEEE80211_SKB_CB(item->skb);
 		*txpriv = &item->txpriv;
-		(*tx)->packet_id = __cpu_to_le32(item->packet_id);
+		(*tx)->packet_id = item->packet_id;
 		list_move_tail(&item->head, &queue->pending);
 		++queue->num_pending;
 		--queue->link_map_cache[item->txpriv.link_id];
diff --git a/drivers/net/wireless/cw1200/sta.c b/drivers/net/wireless/cw1200/sta.c
index 4cd0352..7365674 100644
--- a/drivers/net/wireless/cw1200/sta.c
+++ b/drivers/net/wireless/cw1200/sta.c
@@ -621,7 +621,7 @@ int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
 	mutex_lock(&priv->conf_mutex);
 
 	if (queue < dev->queues) {
-		old_uapsd_flags = priv->uapsd_info.uapsd_flags;
+		old_uapsd_flags = le16_to_cpu(priv->uapsd_info.uapsd_flags);
 
 		WSM_TX_QUEUE_SET(&priv->tx_queue_params, queue, 0, 0, 0);
 		ret = wsm_set_tx_queue_params(priv,
@@ -645,7 +645,7 @@ int cw1200_conf_tx(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
 			ret = cw1200_set_uapsd_param(priv, &priv->edca);
 			if (!ret && priv->setbssparams_done &&
 			    (priv->join_status == CW1200_JOIN_STATUS_STA) &&
-			    (old_uapsd_flags != priv->uapsd_info.uapsd_flags))
+			    (old_uapsd_flags != le16_to_cpu(priv->uapsd_info.uapsd_flags)))
 				ret = cw1200_set_pm(priv, &priv->powersave_mode);
 		}
 	} else {
@@ -1089,18 +1089,18 @@ static int cw1200_parse_sdd_file(struct cw1200_common *priv)
 				ret = -1;
 				break;
 			}
-			v = le16_to_cpu(*((u16 *)(p + 2)));
+			v = le16_to_cpu(*((__le16 *)(p + 2)));
 			if (!v)  /* non-zero means this is enabled */
 				break;
 
-			v = le16_to_cpu(*((u16 *)(p + 4)));
+			v = le16_to_cpu(*((__le16 *)(p + 4)));
 			priv->conf_listen_interval = (v >> 7) & 0x1F;
 			pr_debug("PTA found; Listen Interval %d\n",
 				 priv->conf_listen_interval);
 			break;
 		}
 		case SDD_REFERENCE_FREQUENCY_ELT_ID: {
-			u16 clk = le16_to_cpu(*((u16 *)(p + 2)));
+			u16 clk = le16_to_cpu(*((__le16 *)(p + 2)));
 			if (clk != priv->hw_refclk)
 				pr_warn("SDD file doesn't match configured refclk (%d vs %d)\n",
 					clk, priv->hw_refclk);
@@ -1785,9 +1785,9 @@ static int cw1200_set_btcoexinfo(struct cw1200_common *priv)
 		} else {
 			pr_debug("[STA] STA has non ERP rates\n");
 			/* B only mode */
-			arg.internalTxRate = (__ffs(priv->association_mode.basic_rate_set));
+			arg.internalTxRate = (__ffs(le32_to_cpu(priv->association_mode.basic_rate_set)));
 		}
-		arg.nonErpInternalTxRate = (__ffs(priv->association_mode.basic_rate_set));
+		arg.nonErpInternalTxRate = (__ffs(le32_to_cpu(priv->association_mode.basic_rate_set)));
 	} else {
 		/* P2P mode */
 		arg.internalTxRate = (__ffs(priv->bss_params.operational_rate_set & ~0xF));
@@ -1908,7 +1908,7 @@ void cw1200_bss_info_changed(struct ieee80211_hw *dev,
 
 		if (info->assoc || info->ibss_joined) {
 			struct ieee80211_sta *sta = NULL;
-			u32 val = 0;
+			__le32 htprot = 0;
 
 			if (info->dtim_period)
 				priv->join_dtim_period = info->dtim_period;
@@ -1935,19 +1935,18 @@ void cw1200_bss_info_changed(struct ieee80211_hw *dev,
 			/* Non Greenfield stations present */
 			if (priv->ht_info.operation_mode &
 			    IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT)
-				val |= WSM_NON_GREENFIELD_STA_PRESENT;
+				htprot |= cpu_to_le32(WSM_NON_GREENFIELD_STA_PRESENT);
 
 			/* Set HT protection method */
-			val |= (priv->ht_info.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION) << 2;
+			htprot |= cpu_to_le32((priv->ht_info.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION) << 2);
 
 			/* TODO:
 			 * STBC_param.dual_cts
 			 *  STBC_param.LSIG_TXOP_FILL
 			 */
 
-			val = cpu_to_le32(val);
 			wsm_write_mib(priv, WSM_MIB_ID_SET_HT_PROTECTION,
-				      &val, sizeof(val));
+				      &htprot, sizeof(htprot));
 
 			priv->association_mode.greenfield =
 				cw1200_ht_greenfield(&priv->ht_info);
diff --git a/drivers/net/wireless/cw1200/txrx.c b/drivers/net/wireless/cw1200/txrx.c
index 44ca10c..5862c37 100644
--- a/drivers/net/wireless/cw1200/txrx.c
+++ b/drivers/net/wireless/cw1200/txrx.c
@@ -599,15 +599,15 @@ cw1200_tx_h_bt(struct cw1200_common *priv,
 	} else if (ieee80211_is_data(t->hdr->frame_control)) {
 		/* Skip LLC SNAP header (+6) */
 		u8 *payload = &t->skb->data[t->hdrlen];
-		u16 *ethertype = (u16 *)&payload[6];
-		if (*ethertype == __be16_to_cpu(ETH_P_PAE))
+		__be16 *ethertype = (__be16 *)&payload[6];
+		if (be16_to_cpu(*ethertype) == ETH_P_PAE)
 			priority = WSM_EPTA_PRIORITY_EAPOL;
 	} else if (ieee80211_is_assoc_req(t->hdr->frame_control) ||
 		ieee80211_is_reassoc_req(t->hdr->frame_control)) {
 		struct ieee80211_mgmt *mgt_frame =
 				(struct ieee80211_mgmt *)t->hdr;
 
-		if (mgt_frame->u.assoc_req.listen_interval <
+		if (le16_to_cpu(mgt_frame->u.assoc_req.listen_interval) <
 						priv->listen_interval) {
 			pr_debug("Modified Listen Interval to %d from %d\n",
 				 priv->listen_interval,
@@ -615,8 +615,7 @@ cw1200_tx_h_bt(struct cw1200_common *priv,
 			/* Replace listen interval derieved from
 			 * the one read from SDD
 			 */
-			mgt_frame->u.assoc_req.listen_interval =
-				priv->listen_interval;
+			mgt_frame->u.assoc_req.listen_interval = cpu_to_le16(priv->listen_interval);
 		}
 	}
 
diff --git a/drivers/net/wireless/cw1200/wsm.c b/drivers/net/wireless/cw1200/wsm.c
index d95094f..cbb74d7 100644
--- a/drivers/net/wireless/cw1200/wsm.c
+++ b/drivers/net/wireless/cw1200/wsm.c
@@ -42,19 +42,19 @@
 		(buf)->data += size;					\
 	} while (0)
 
-#define __WSM_GET(buf, type, cvt)					\
+#define __WSM_GET(buf, type, type2, cvt)				\
 	({								\
 		type val;						\
 		if ((buf)->data + sizeof(type) > (buf)->end)		\
 			goto underflow;					\
-		val = cvt(*(type *)(buf)->data);			\
+		val = cvt(*(type2 *)(buf)->data);			\
 		(buf)->data += sizeof(type);				\
 		val;							\
 	})
 
-#define WSM_GET8(buf)  __WSM_GET(buf, u8, (u8))
-#define WSM_GET16(buf) __WSM_GET(buf, u16, __le16_to_cpu)
-#define WSM_GET32(buf) __WSM_GET(buf, u32, __le32_to_cpu)
+#define WSM_GET8(buf)  __WSM_GET(buf, u8, u8, (u8))
+#define WSM_GET16(buf) __WSM_GET(buf, u16, __le16, __le16_to_cpu)
+#define WSM_GET32(buf) __WSM_GET(buf, u32, __le32, __le32_to_cpu)
 
 #define WSM_PUT(buf, ptr, size)						\
 	do {								\
@@ -65,18 +65,18 @@
 		(buf)->data += size;					\
 	} while (0)
 
-#define __WSM_PUT(buf, val, type, cvt)					\
+#define __WSM_PUT(buf, val, type, type2, cvt)				\
 	do {								\
 		if ((buf)->data + sizeof(type) > (buf)->end)		\
 			if (wsm_buf_reserve((buf), sizeof(type))) \
 				goto nomem;				\
-		*(type *)(buf)->data = cvt(val);			\
+		*(type2 *)(buf)->data = cvt(val);			\
 		(buf)->data += sizeof(type);				\
 	} while (0)
 
-#define WSM_PUT8(buf, val)  __WSM_PUT(buf, val, u8, (u8))
-#define WSM_PUT16(buf, val) __WSM_PUT(buf, val, u16, __cpu_to_le16)
-#define WSM_PUT32(buf, val) __WSM_PUT(buf, val, u32, __cpu_to_le32)
+#define WSM_PUT8(buf, val)  __WSM_PUT(buf, val, u8, u8, (u8))
+#define WSM_PUT16(buf, val) __WSM_PUT(buf, val, u16, __le16, __cpu_to_le16)
+#define WSM_PUT32(buf, val) __WSM_PUT(buf, val, u32, __le32, __cpu_to_le32)
 
 static void wsm_buf_reset(struct wsm_buf *buf);
 static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size);
@@ -931,8 +931,8 @@ static int wsm_event_indication(struct cw1200_common *priv, struct wsm_buf *buf)
 	if (!event)
 		return -ENOMEM;
 
-	event->evt.id = __le32_to_cpu(WSM_GET32(buf));
-	event->evt.data = __le32_to_cpu(WSM_GET32(buf));
+	event->evt.id = WSM_GET32(buf);
+	event->evt.data = WSM_GET32(buf);
 
 	pr_debug("[WSM] Event: %d(%d)\n",
 		 event->evt.id, event->evt.data);
@@ -1311,7 +1311,7 @@ int wsm_handle_rx(struct cw1200_common *priv, u16 id,
 
 	wsm_buf.begin = (u8 *)&wsm[0];
 	wsm_buf.data = (u8 *)&wsm[1];
-	wsm_buf.end = &wsm_buf.begin[__le32_to_cpu(wsm->len)];
+	wsm_buf.end = &wsm_buf.begin[__le16_to_cpu(wsm->len)];
 
 	pr_debug("[WSM] <<< 0x%.4X (%td)\n", id,
 		 wsm_buf.end - wsm_buf.begin);
@@ -1550,7 +1550,7 @@ static bool wsm_handle_tx_data(struct cw1200_common *priv,
 		 */
 		pr_debug("[WSM] Convert probe request to scan.\n");
 		wsm_lock_tx_async(priv);
-		priv->pending_frame_id = __le32_to_cpu(wsm->packet_id);
+		priv->pending_frame_id = wsm->packet_id;
 		if (queue_delayed_work(priv->workqueue,
 				       &priv->scan.probe_work, 0) <= 0)
 			wsm_unlock_tx(priv);
@@ -1558,15 +1558,14 @@ static bool wsm_handle_tx_data(struct cw1200_common *priv,
 		break;
 	case do_drop:
 		pr_debug("[WSM] Drop frame (0x%.4X).\n", fctl);
-		BUG_ON(cw1200_queue_remove(queue,
-					   __le32_to_cpu(wsm->packet_id)));
+		BUG_ON(cw1200_queue_remove(queue, wsm->packet_id));
 		handled = true;
 		break;
 	case do_wep:
 		pr_debug("[WSM] Issue set_default_wep_key.\n");
 		wsm_lock_tx_async(priv);
 		priv->wep_default_key_id = tx_info->control.hw_key->keyidx;
-		priv->pending_frame_id = __le32_to_cpu(wsm->packet_id);
+		priv->pending_frame_id = wsm->packet_id;
 		if (queue_work(priv->workqueue, &priv->wep_key_work) <= 0)
 			wsm_unlock_tx(priv);
 		handled = true;
diff --git a/drivers/net/wireless/cw1200/wsm.h b/drivers/net/wireless/cw1200/wsm.h
index 2816171..7afc613 100644
--- a/drivers/net/wireless/cw1200/wsm.h
+++ b/drivers/net/wireless/cw1200/wsm.h
@@ -806,7 +806,7 @@ struct wsm_tx {
 	struct wsm_hdr hdr;
 
 	/* Packet identifier that meant to be used in completion. */
-	__le32 packet_id;
+	u32 packet_id;  /* Note this is actually a cookie */
 
 	/* WSM_TRANSMIT_RATE_... */
 	u8 max_tx_rate;
@@ -825,18 +825,18 @@ struct wsm_tx {
 	u8 flags;
 
 	/* Should be 0. */
-	__le32 reserved;
+	u32 reserved;
 
 	/* The elapsed time in TUs, after the initial transmission */
 	/* of an MSDU, after which further attempts to transmit */
 	/* the MSDU shall be terminated. Overrides the global */
 	/* dot11MaxTransmitMsduLifeTime setting [optional] */
 	/* Device will set the default value if this is 0. */
-	__le32 expire_time;
+	u32 expire_time;
 
 	/* WSM_HT_TX_... */
 	__le32 ht_tx_parameters;
-};
+} __packed;
 
 /* = sizeof(generic hi hdr) + sizeof(wsm hdr) + sizeof(alignment) */
 #define WSM_TX_EXTRA_HEADROOM (28)
@@ -846,10 +846,10 @@ struct wsm_tx {
 
 struct wsm_rx {
 	/* WSM_STATUS_... */
-	__le32 status;
+	u32 status;
 
 	/* Specifies the channel of the received packet. */
-	__le16 channel_number;
+	u16 channel_number;
 
 	/* WSM_TRANSMIT_RATE_... */
 	u8 rx_rate;
@@ -859,11 +859,8 @@ struct wsm_rx {
 	u8 rcpi_rssi;
 
 	/* WSM_RX_STATUS_... */
-	__le32 flags;
-
-	/* Payload */
-	u8 data[0];
-} __packed;
+	u32 flags;
+};
 
 /* = sizeof(generic hi hdr) + sizeof(wsm hdr) */
 #define WSM_RX_EXTRA_HEADROOM (16)
@@ -1119,22 +1116,22 @@ int wsm_set_tx_queue_params(struct cw1200_common *priv,
 #define WSM_EDCA_PARAMS_RESP_ID 0x0413
 struct wsm_edca_queue_params {
 	/* CWmin (in slots) for the access class. */
-	__le16 cwmin;
+	u16 cwmin;
 
 	/* CWmax (in slots) for the access class. */
-	__le16 cwmax;
+	u16 cwmax;
 
 	/* AIFS (in slots) for the access class. */
-	__le16 aifns;
+	u16 aifns;
 
 	/* TX OP Limit (in microseconds) for the access class. */
-	__le16 txop_limit;
+	u16 txop_limit;
 
 	/* dot11MaxReceiveLifetime to be used for the specified */
 	/* the access class. Overrides the global */
 	/* dot11MaxReceiveLifetime value */
-	__le32 max_rx_lifetime;
-} __packed;
+	u32 max_rx_lifetime;
+};
 
 struct wsm_edca_params {
 	/* NOTE: index is a linux queue id. */
@@ -1147,12 +1144,12 @@ struct wsm_edca_params {
 		     __uapsd) \
 	do {							\
 		struct wsm_edca_queue_params *p = &(__edca)->params[__queue]; \
-		p->cwmin = (__cw_min);				\
-		p->cwmax = (__cw_max);				\
-		p->aifns = (__aifs);				\
-		p->txop_limit = ((__txop) * TXOP_UNIT);		\
-		p->max_rx_lifetime = (__lifetime);		\
-		(__edca)->uapsd_enable[__queue] = (__uapsd);	\
+		p->cwmin = __cw_min;					\
+		p->cwmax = __cw_max;					\
+		p->aifns = __aifs;					\
+		p->txop_limit = ((__txop) * TXOP_UNIT);			\
+		p->max_rx_lifetime = __lifetime;			\
+		(__edca)->uapsd_enable[__queue] = (__uapsd);		\
 	} while (0)
 
 int wsm_set_edca_params(struct cw1200_common *priv,
@@ -1475,7 +1472,7 @@ static inline int wsm_set_template_frame(struct cw1200_common *priv,
 	u8 *p = skb_push(arg->skb, 4);
 	p[0] = arg->frame_type;
 	p[1] = arg->rate;
-	((u16 *)p)[1] = __cpu_to_le16(arg->skb->len - 4);
+	((__le16 *)p)[1] = __cpu_to_le16(arg->skb->len - 4);
 	ret = wsm_write_mib(priv, WSM_MIB_ID_TEMPLATE_FRAME, p, arg->skb->len);
 	skb_pull(arg->skb, 4);
 	return ret;
-- 
cgit v0.10.2


From fca3c21d5659f21edbf30a80b706cbc00f368659 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Fri, 21 Jun 2013 11:11:52 +0530
Subject: ath9k: Enable WoW only for supported models

Since platform support is required for WoW, identify and
and enable Wow only for supported cards.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 04b2d3e..c1224b5 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -634,6 +634,7 @@ void ath_ant_comb_update(struct ath_softc *sc);
 #define ATH9K_PCI_CUS198 0x0001
 #define ATH9K_PCI_CUS230 0x0002
 #define ATH9K_PCI_CUS217 0x0004
+#define ATH9K_PCI_WOW    0x0008
 
 /*
  * Default cache line size, in bytes.
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 1e555d8..16f8b20 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -837,6 +837,7 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 
 #ifdef CONFIG_PM_SLEEP
 	if ((ah->caps.hw_caps & ATH9K_HW_WOW_DEVICE_CAPABLE) &&
+	    (sc->driver_data & ATH9K_PCI_WOW) &&
 	    device_can_wakeup(sc->dev))
 		hw->wiphy->wowlan = &ath9k_wowlan_support;
 
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index b096bb2..c585c9b 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -79,6 +79,63 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 			 0x6661),
 	  .driver_data = ATH9K_PCI_CUS217 },
 
+	/* AR9462 with WoW support */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x3117),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 PCI_VENDOR_ID_LENOVO,
+			 0x3214),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 PCI_VENDOR_ID_ATTANSIC,
+			 0x0091),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2110),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 PCI_VENDOR_ID_ASUSTEK,
+			 0x850E),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 0x11AD, /* LITEON */
+			 0x6631),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 0x11AD, /* LITEON */
+			 0x6641),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 PCI_VENDOR_ID_HP,
+			 0x1864),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 0x14CD, /* USI */
+			 0x0063),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 0x14CD, /* USI */
+			 0x0064),
+	  .driver_data = ATH9K_PCI_WOW },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0034,
+			 0x10CF, /* Fujitsu */
+			 0x1783),
+	  .driver_data = ATH9K_PCI_WOW },
+
 	{ PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
 	{ PCI_VDEVICE(ATHEROS, 0x0037) }, /* PCI-E  AR1111/AR9485 */
 	{ PCI_VDEVICE(ATHEROS, 0x0036) }, /* PCI-E  AR9565 */
-- 
cgit v0.10.2


From 428e3cf5f98cf9528586854b1c4f9f9f76f54b4e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 21 Jun 2013 15:26:20 +0300
Subject: ipw2x00: printing the wrong array in debug code

Smatch complains that this is a read past the end of the array.  It
turns out we are printing the wrong array here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ipw2x00/libipw_rx.c b/drivers/net/wireless/ipw2x00/libipw_rx.c
index 95a1ca1..9ffe659 100644
--- a/drivers/net/wireless/ipw2x00/libipw_rx.c
+++ b/drivers/net/wireless/ipw2x00/libipw_rx.c
@@ -1195,7 +1195,7 @@ static int libipw_parse_info_param(struct libipw_info_element
 #ifdef CONFIG_LIBIPW_DEBUG
 				p += snprintf(p, sizeof(rates_str) -
 					      (p - rates_str), "%02X ",
-					      network->rates[i]);
+					      network->rates_ex[i]);
 #endif
 				if (libipw_is_ofdm_rate
 				    (info_element->data[i])) {
-- 
cgit v0.10.2


From 0a6f3a8ebaf13407523c2c7d575b4ca2debd23ba Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Sat, 22 Jun 2013 13:13:25 +0200
Subject: rt2x00: read 5GHz TX power values from the correct offset

The current code uses the same index value both
for the channel information array and for the TX
power table. The index starts from 14, however the
index of the TX power table must start from zero.

Fix it, in order to get the correct TX power value
for a given channel.

The changes in rt61pci.c and rt73usb.c are compile
tested only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: stable@vger.kernel.org
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 3aa30dd..4072242 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -6254,8 +6254,8 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 		default_power2 = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A2);
 
 		for (i = 14; i < spec->num_channels; i++) {
-			info[i].default_power1 = default_power1[i];
-			info[i].default_power2 = default_power2[i];
+			info[i].default_power1 = default_power1[i - 14];
+			info[i].default_power2 = default_power2[i - 14];
 		}
 	}
 
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 53754bc6..54d3ddf 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2825,7 +2825,8 @@ static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 		tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
 		for (i = 14; i < spec->num_channels; i++) {
 			info[i].max_power = MAX_TXPOWER;
-			info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
+			info[i].default_power1 =
+					TXPOWER_FROM_DEV(tx_power[i - 14]);
 		}
 	}
 
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 1616ed4..1d3880e 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -2167,7 +2167,8 @@ static int rt73usb_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 		tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_A_START);
 		for (i = 14; i < spec->num_channels; i++) {
 			info[i].max_power = MAX_TXPOWER;
-			info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
+			info[i].default_power1 =
+					TXPOWER_FROM_DEV(tx_power[i - 14]);
 		}
 	}
 
-- 
cgit v0.10.2


From a53aff5da60b5c8c4d416f80040e6e7edb7f12df Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Sat, 22 Jun 2013 16:31:58 +0200
Subject: rt2x00: rt2800pci: don't use TXWI_DESC_SIZE directly

Different chipsets may use different TXWI descriptor
size. Instead of using a hardcoded value, use the
'queue->winfo_size' which holds the correct value for
a given device.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 7c74782..e664918 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -637,6 +637,7 @@ static void rt2800pci_write_tx_desc(struct queue_entry *entry,
 	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
 	__le32 *txd = entry_priv->desc;
 	u32 word;
+	const unsigned int txwi_size = entry->queue->winfo_size;
 
 	/*
 	 * The buffers pointed by SD_PTR0/SD_LEN0 and SD_PTR1/SD_LEN1
@@ -659,14 +660,14 @@ static void rt2800pci_write_tx_desc(struct queue_entry *entry,
 			   !test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
 	rt2x00_set_field32(&word, TXD_W1_BURST,
 			   test_bit(ENTRY_TXD_BURST, &txdesc->flags));
-	rt2x00_set_field32(&word, TXD_W1_SD_LEN0, TXWI_DESC_SIZE);
+	rt2x00_set_field32(&word, TXD_W1_SD_LEN0, txwi_size);
 	rt2x00_set_field32(&word, TXD_W1_LAST_SEC0, 0);
 	rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 0);
 	rt2x00_desc_write(txd, 1, word);
 
 	word = 0;
 	rt2x00_set_field32(&word, TXD_W2_SD_PTR1,
-			   skbdesc->skb_dma + TXWI_DESC_SIZE);
+			   skbdesc->skb_dma + txwi_size);
 	rt2x00_desc_write(txd, 2, word);
 
 	word = 0;
-- 
cgit v0.10.2


From 150cc692673018d195bb90cbc3ae353ffda2625d Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Sat, 22 Jun 2013 16:31:59 +0200
Subject: rt2x00: rt2800: unify [RT]XWI_SIZE defines

Use common names instead of chip specific ones.
The patch contains no functional changes, but
it makes it easier to add support for further
descriptor sizes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index a7630d5..fe43d01 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -2625,11 +2625,13 @@ struct mac_iveiv_entry {
 /*
  * DMA descriptor defines.
  */
-#define TXWI_DESC_SIZE			(4 * sizeof(__le32))
-#define RXWI_DESC_SIZE			(4 * sizeof(__le32))
 
-#define TXWI_DESC_SIZE_5592		(5 * sizeof(__le32))
-#define RXWI_DESC_SIZE_5592		(6 * sizeof(__le32))
+#define TXWI_DESC_SIZE_4WORDS		(4 * sizeof(__le32))
+#define TXWI_DESC_SIZE_5WORDS		(5 * sizeof(__le32))
+
+#define RXWI_DESC_SIZE_4WORDS		(4 * sizeof(__le32))
+#define RXWI_DESC_SIZE_6WORDS		(6 * sizeof(__le32))
+
 /*
  * TX WI structure
  */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index e664918..0005562 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -1194,7 +1194,7 @@ static void rt2800pci_queue_init(struct data_queue *queue)
 		queue->limit = 128;
 		queue->data_size = AGGREGATION_SIZE;
 		queue->desc_size = RXD_DESC_SIZE;
-		queue->winfo_size = RXWI_DESC_SIZE;
+		queue->winfo_size = RXWI_DESC_SIZE_4WORDS;
 		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
 		break;
 
@@ -1205,7 +1205,7 @@ static void rt2800pci_queue_init(struct data_queue *queue)
 		queue->limit = 64;
 		queue->data_size = AGGREGATION_SIZE;
 		queue->desc_size = TXD_DESC_SIZE;
-		queue->winfo_size = TXWI_DESC_SIZE;
+		queue->winfo_size = TXWI_DESC_SIZE_4WORDS;
 		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
 		break;
 
@@ -1213,7 +1213,7 @@ static void rt2800pci_queue_init(struct data_queue *queue)
 		queue->limit = 8;
 		queue->data_size = 0; /* No DMA required for beacons */
 		queue->desc_size = TXD_DESC_SIZE;
-		queue->winfo_size = TXWI_DESC_SIZE;
+		queue->winfo_size = TXWI_DESC_SIZE_4WORDS;
 		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
 		break;
 
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 7edd903..840833b 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -855,11 +855,11 @@ static void rt2800usb_queue_init(struct data_queue *queue)
 	unsigned short txwi_size, rxwi_size;
 
 	if (rt2x00_rt(rt2x00dev, RT5592)) {
-		txwi_size = TXWI_DESC_SIZE_5592;
-		rxwi_size = RXWI_DESC_SIZE_5592;
+		txwi_size = TXWI_DESC_SIZE_5WORDS;
+		rxwi_size = RXWI_DESC_SIZE_6WORDS;
 	} else {
-		txwi_size = TXWI_DESC_SIZE;
-		rxwi_size = RXWI_DESC_SIZE;
+		txwi_size = TXWI_DESC_SIZE_4WORDS;
+		rxwi_size = RXWI_DESC_SIZE_4WORDS;
 	}
 
 	switch (queue->qid) {
-- 
cgit v0.10.2


From 99b55bd22a4ecfc70e4bf36e69d26c4c219f3bfb Mon Sep 17 00:00:00 2001
From: Kirshenbaum Erez <erezk@wilocity.com>
Date: Sun, 23 Jun 2013 12:59:34 +0300
Subject: wil6210: set vring index for all descriptors

The vring index (MAC queue id) must be set in all TX descriptors
otherwise HW will fail to release descriptors for a specific vring
(disconnect or vring switch flows).
This is normally occurs when fragmentation required, if vring index
will not be the same for all SKB descriptors HW will fail to flush
this MAC queue.

Signed-off-by: Kirshenbaum Erez <erezk@wilocity.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index e1c492b..73d6c2d 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -621,7 +621,8 @@ static struct vring *wil_find_tx_vring(struct wil6210_priv *wil,
 	return NULL;
 }
 
-static int wil_tx_desc_map(struct vring_tx_desc *d, dma_addr_t pa, u32 len)
+static int wil_tx_desc_map(struct vring_tx_desc *d, dma_addr_t pa, u32 len,
+			   int vring_index)
 {
 	wil_desc_addr_set(&d->dma.addr, pa);
 	d->dma.ip_length = 0;
@@ -630,7 +631,7 @@ static int wil_tx_desc_map(struct vring_tx_desc *d, dma_addr_t pa, u32 len)
 	d->dma.error = 0;
 	d->dma.status = 0; /* BIT(0) should be 0 for HW_OWNED */
 	d->dma.length = cpu_to_le16((u16)len);
-	d->dma.d0 = 0;
+	d->dma.d0 = (vring_index << DMA_CFG_DESC_TX_0_QID_POS);
 	d->mac.d[0] = 0;
 	d->mac.d[1] = 0;
 	d->mac.d[2] = 0;
@@ -684,7 +685,7 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 	if (unlikely(dma_mapping_error(dev, pa)))
 		return -EINVAL;
 	/* 1-st segment */
-	wil_tx_desc_map(d, pa, skb_headlen(skb));
+	wil_tx_desc_map(d, pa, skb_headlen(skb), vring_index);
 	d->mac.d[2] |= ((nr_frags + 1) <<
 		       MAC_CFG_DESC_TX_2_NUM_OF_DESCRIPTORS_POS);
 	if (nr_frags)
@@ -701,7 +702,7 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 				DMA_TO_DEVICE);
 		if (unlikely(dma_mapping_error(dev, pa)))
 			goto dma_error;
-		wil_tx_desc_map(d, pa, len);
+		wil_tx_desc_map(d, pa, len, vring_index);
 		vring->ctx[i] = NULL;
 		*_d = *d;
 	}
@@ -709,7 +710,6 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 	d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_EOP_POS);
 	d->dma.d0 |= BIT(9); /* BUG: undocumented bit */
 	d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS);
-	d->dma.d0 |= (vring_index << DMA_CFG_DESC_TX_0_QID_POS);
 	*_d = *d;
 
 	wil_hex_dump_txrx("Tx ", DUMP_PREFIX_NONE, 32, 4,
-- 
cgit v0.10.2


From 668b2bbd7fd5a87e54e83b621658d4290811c4a0 Mon Sep 17 00:00:00 2001
From: Kirshenbaum Erez <erezk@wilocity.com>
Date: Sun, 23 Jun 2013 12:59:35 +0300
Subject: wil6210: add HW write-back option in TX descriptor

Map BIT 9 in TX DMA DWARD 0 as HW write back option.
We must turn on this option in the last TX descriptor,
this is required for old HW compatability.
This option indicate to HW that WB is required for this descriptor.

Signed-off-by: Kirshenbaum Erez <erezk@wilocity.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 73d6c2d..d240b24 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -708,7 +708,7 @@ static int wil_tx_vring(struct wil6210_priv *wil, struct vring *vring,
 	}
 	/* for the last seg only */
 	d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_EOP_POS);
-	d->dma.d0 |= BIT(9); /* BUG: undocumented bit */
+	d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_MARK_WB_POS);
 	d->dma.d0 |= BIT(DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS);
 	*_d = *d;
 
diff --git a/drivers/net/wireless/ath/wil6210/txrx.h b/drivers/net/wireless/ath/wil6210/txrx.h
index 23c0781..859aea6 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.h
+++ b/drivers/net/wireless/ath/wil6210/txrx.h
@@ -201,6 +201,10 @@ struct vring_tx_mac {
 #define DMA_CFG_DESC_TX_0_CMD_EOP_LEN 1
 #define DMA_CFG_DESC_TX_0_CMD_EOP_MSK 0x100
 
+#define DMA_CFG_DESC_TX_0_CMD_MARK_WB_POS 9
+#define DMA_CFG_DESC_TX_0_CMD_MARK_WB_LEN 1
+#define DMA_CFG_DESC_TX_0_CMD_MARK_WB_MSK 0x200
+
 #define DMA_CFG_DESC_TX_0_CMD_DMA_IT_POS 10
 #define DMA_CFG_DESC_TX_0_CMD_DMA_IT_LEN 1
 #define DMA_CFG_DESC_TX_0_CMD_DMA_IT_MSK 0x400
-- 
cgit v0.10.2


From 73e088ed17c2880a963cc760a78af8a06d4a4d9d Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sun, 23 Jun 2013 18:14:43 -0500
Subject: rtlwifi: rtl8723ae: Fix typo in firmware names
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The driver loads its firmware from files rtlwifi/rtl8723fw*.bin, but the
MODULE_FIRMWARE macros refer to rtlwifi/RTL8723aefw*.bin.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>  [3.8+]
Reported-by: Axel Köllhofer <AxelKoellhofer@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rtlwifi/rtl8723ae/sw.c b/drivers/net/wireless/rtlwifi/rtl8723ae/sw.c
index e4c4cdc..d9ee2ef 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723ae/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8723ae/sw.c
@@ -251,7 +251,7 @@ static struct rtl_hal_cfg rtl8723ae_hal_cfg = {
 	.bar_id = 2,
 	.write_readback = true,
 	.name = "rtl8723ae_pci",
-	.fw_name = "rtlwifi/rtl8723aefw.bin",
+	.fw_name = "rtlwifi/rtl8723fw.bin",
 	.ops = &rtl8723ae_hal_ops,
 	.mod_params = &rtl8723ae_mod_params,
 	.maps[SYS_ISO_CTRL] = REG_SYS_ISO_CTRL,
@@ -353,8 +353,8 @@ MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
 MODULE_AUTHOR("Larry Finger	<Larry.Finger@lwfinger.net>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Realtek 8723E 802.11n PCI wireless");
-MODULE_FIRMWARE("rtlwifi/rtl8723aefw.bin");
-MODULE_FIRMWARE("rtlwifi/rtl8723aefw_B.bin");
+MODULE_FIRMWARE("rtlwifi/rtl8723fw.bin");
+MODULE_FIRMWARE("rtlwifi/rtl8723fw_B.bin");
 
 module_param_named(swenc, rtl8723ae_mod_params.sw_crypto, bool, 0444);
 module_param_named(debug, rtl8723ae_mod_params.debug, int, 0444);
-- 
cgit v0.10.2


From 7c676d953f21f70298830df9875e39166147e915 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 24 Jun 2013 18:18:43 +0530
Subject: ath9k: Add version macros for AR9462 2.1

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index f7c90cc..5af9744 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -806,6 +806,7 @@
 #define AR_SREV_REVISION_9580_10	4 /* AR9580 1.0 */
 #define AR_SREV_VERSION_9462		0x280
 #define AR_SREV_REVISION_9462_20	2
+#define AR_SREV_REVISION_9462_21	3
 #define AR_SREV_VERSION_9565            0x2C0
 #define AR_SREV_REVISION_9565_10        0
 #define AR_SREV_VERSION_9550		0x400
@@ -911,10 +912,18 @@
 
 #define AR_SREV_9462(_ah) \
 	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9462))
-
 #define AR_SREV_9462_20(_ah) \
 	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9462) && \
-	((_ah)->hw_version.macRev == AR_SREV_REVISION_9462_20))
+	 ((_ah)->hw_version.macRev == AR_SREV_REVISION_9462_20))
+#define AR_SREV_9462_21(_ah) \
+	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9462) && \
+	 ((_ah)->hw_version.macRev == AR_SREV_REVISION_9462_21))
+#define AR_SREV_9462_20_OR_LATER(_ah) \
+	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9462) && \
+	 ((_ah)->hw_version.macRev >= AR_SREV_REVISION_9462_20))
+#define AR_SREV_9462_21_OR_LATER(_ah) \
+	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9462) && \
+	 ((_ah)->hw_version.macRev >= AR_SREV_REVISION_9462_21))
 
 #define AR_SREV_9565(_ah) \
 	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9565))
-- 
cgit v0.10.2


From 12c75ef8c38f9224f9921b6a8fcf8a68ccdf81d4 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 24 Jun 2013 18:18:44 +0530
Subject: ath9k: Add initvals for AR9462 2.1

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h
new file mode 100644
index 0000000..4dbc294
--- /dev/null
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h
@@ -0,0 +1,1774 @@
+/*
+ * Copyright (c) 2010-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2012 Qualcomm Atheros Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef INITVALS_9462_2P1_H
+#define INITVALS_9462_2P1_H
+
+/* AR9462 2.1 */
+
+static const u32 ar9462_2p1_mac_core[][2] = {
+	/* Addr      allmodes  */
+	{0x00000008, 0x00000000},
+	{0x00000030, 0x000e0085},
+	{0x00000034, 0x00000005},
+	{0x00000040, 0x00000000},
+	{0x00000044, 0x00000000},
+	{0x00000048, 0x00000008},
+	{0x0000004c, 0x00000010},
+	{0x00000050, 0x00000000},
+	{0x00001040, 0x002ffc0f},
+	{0x00001044, 0x002ffc0f},
+	{0x00001048, 0x002ffc0f},
+	{0x0000104c, 0x002ffc0f},
+	{0x00001050, 0x002ffc0f},
+	{0x00001054, 0x002ffc0f},
+	{0x00001058, 0x002ffc0f},
+	{0x0000105c, 0x002ffc0f},
+	{0x00001060, 0x002ffc0f},
+	{0x00001064, 0x002ffc0f},
+	{0x000010f0, 0x00000100},
+	{0x00001270, 0x00000000},
+	{0x000012b0, 0x00000000},
+	{0x000012f0, 0x00000000},
+	{0x0000143c, 0x00000000},
+	{0x0000147c, 0x00000000},
+	{0x00001810, 0x0f000003},
+	{0x00008000, 0x00000000},
+	{0x00008004, 0x00000000},
+	{0x00008008, 0x00000000},
+	{0x0000800c, 0x00000000},
+	{0x00008018, 0x00000000},
+	{0x00008020, 0x00000000},
+	{0x00008038, 0x00000000},
+	{0x0000803c, 0x00080000},
+	{0x00008040, 0x00000000},
+	{0x00008044, 0x00000000},
+	{0x00008048, 0x00000000},
+	{0x0000804c, 0xffffffff},
+	{0x00008054, 0x00000000},
+	{0x00008058, 0x00000000},
+	{0x0000805c, 0x000fc78f},
+	{0x00008060, 0x0000000f},
+	{0x00008064, 0x00000000},
+	{0x00008070, 0x00000310},
+	{0x00008074, 0x00000020},
+	{0x00008078, 0x00000000},
+	{0x0000809c, 0x0000000f},
+	{0x000080a0, 0x00000000},
+	{0x000080a4, 0x02ff0000},
+	{0x000080a8, 0x0e070605},
+	{0x000080ac, 0x0000000d},
+	{0x000080b0, 0x00000000},
+	{0x000080b4, 0x00000000},
+	{0x000080b8, 0x00000000},
+	{0x000080bc, 0x00000000},
+	{0x000080c0, 0x2a800000},
+	{0x000080c4, 0x06900168},
+	{0x000080c8, 0x13881c20},
+	{0x000080cc, 0x01f40000},
+	{0x000080d0, 0x00252500},
+	{0x000080d4, 0x00b00005},
+	{0x000080d8, 0x00400002},
+	{0x000080dc, 0x00000000},
+	{0x000080e0, 0xffffffff},
+	{0x000080e4, 0x0000ffff},
+	{0x000080e8, 0x3f3f3f3f},
+	{0x000080ec, 0x00000000},
+	{0x000080f0, 0x00000000},
+	{0x000080f4, 0x00000000},
+	{0x000080fc, 0x00020000},
+	{0x00008100, 0x00000000},
+	{0x00008108, 0x00000052},
+	{0x0000810c, 0x00000000},
+	{0x00008110, 0x00000000},
+	{0x00008114, 0x000007ff},
+	{0x00008118, 0x000000aa},
+	{0x0000811c, 0x00003210},
+	{0x00008124, 0x00000000},
+	{0x00008128, 0x00000000},
+	{0x0000812c, 0x00000000},
+	{0x00008130, 0x00000000},
+	{0x00008134, 0x00000000},
+	{0x00008138, 0x00000000},
+	{0x0000813c, 0x0000ffff},
+	{0x00008144, 0xffffffff},
+	{0x00008168, 0x00000000},
+	{0x0000816c, 0x00000000},
+	{0x00008170, 0x18486e00},
+	{0x00008174, 0x33332210},
+	{0x00008178, 0x00000000},
+	{0x0000817c, 0x00020000},
+	{0x000081c4, 0x33332210},
+	{0x000081c8, 0x00000000},
+	{0x000081cc, 0x00000000},
+	{0x000081d4, 0x00000000},
+	{0x000081ec, 0x00000000},
+	{0x000081f0, 0x00000000},
+	{0x000081f4, 0x00000000},
+	{0x000081f8, 0x00000000},
+	{0x000081fc, 0x00000000},
+	{0x00008240, 0x00100000},
+	{0x00008244, 0x0010f400},
+	{0x00008248, 0x00000800},
+	{0x0000824c, 0x0001e800},
+	{0x00008250, 0x00000000},
+	{0x00008254, 0x00000000},
+	{0x00008258, 0x00000000},
+	{0x0000825c, 0x40000000},
+	{0x00008260, 0x00080922},
+	{0x00008264, 0x99c00010},
+	{0x00008268, 0xffffffff},
+	{0x0000826c, 0x0000ffff},
+	{0x00008270, 0x00000000},
+	{0x00008274, 0x40000000},
+	{0x00008278, 0x003e4180},
+	{0x0000827c, 0x00000004},
+	{0x00008284, 0x0000002c},
+	{0x00008288, 0x0000002c},
+	{0x0000828c, 0x000000ff},
+	{0x00008294, 0x00000000},
+	{0x00008298, 0x00000000},
+	{0x0000829c, 0x00000000},
+	{0x00008300, 0x00000140},
+	{0x00008314, 0x00000000},
+	{0x0000831c, 0x0000010d},
+	{0x00008328, 0x00000000},
+	{0x0000832c, 0x0000001f},
+	{0x00008330, 0x00000302},
+	{0x00008334, 0x00000700},
+	{0x00008338, 0xffff0000},
+	{0x0000833c, 0x02400000},
+	{0x00008340, 0x000107ff},
+	{0x00008344, 0xaa48107b},
+	{0x00008348, 0x008f0000},
+	{0x0000835c, 0x00000000},
+	{0x00008360, 0xffffffff},
+	{0x00008364, 0xffffffff},
+	{0x00008368, 0x00000000},
+	{0x00008370, 0x00000000},
+	{0x00008374, 0x000000ff},
+	{0x00008378, 0x00000000},
+	{0x0000837c, 0x00000000},
+	{0x00008380, 0xffffffff},
+	{0x00008384, 0xffffffff},
+	{0x00008390, 0xffffffff},
+	{0x00008394, 0xffffffff},
+	{0x00008398, 0x00000000},
+	{0x0000839c, 0x00000000},
+	{0x000083a4, 0x0000fa14},
+	{0x000083a8, 0x000f0c00},
+	{0x000083ac, 0x33332210},
+	{0x000083b0, 0x33332210},
+	{0x000083b4, 0x33332210},
+	{0x000083b8, 0x33332210},
+	{0x000083bc, 0x00000000},
+	{0x000083c0, 0x00000000},
+	{0x000083c4, 0x00000000},
+	{0x000083c8, 0x00000000},
+	{0x000083cc, 0x00000200},
+	{0x000083d0, 0x000301ff},
+};
+
+static const u32 ar9462_2p1_mac_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00001030, 0x00000230, 0x00000460, 0x000002c0, 0x00000160},
+	{0x00001070, 0x00000168, 0x000002d0, 0x00000318, 0x0000018c},
+	{0x000010b0, 0x00000e60, 0x00001cc0, 0x00007c70, 0x00003e38},
+	{0x00008014, 0x03e803e8, 0x07d007d0, 0x10801600, 0x08400b00},
+	{0x0000801c, 0x128d8027, 0x128d804f, 0x12e00057, 0x12e0002b},
+	{0x00008120, 0x08f04800, 0x08f04800, 0x08f04810, 0x08f04810},
+	{0x000081d0, 0x00003210, 0x00003210, 0x0000320a, 0x0000320a},
+	{0x00008318, 0x00003e80, 0x00007d00, 0x00006880, 0x00003440},
+};
+
+static const u32 ar9462_2p1_baseband_core[][2] = {
+	/* Addr      allmodes  */
+	{0x00009800, 0xafe68e30},
+	{0x00009804, 0xfd14e000},
+	{0x00009808, 0x9c0a9f6b},
+	{0x0000980c, 0x04900000},
+	{0x00009814, 0x9280c00a},
+	{0x00009818, 0x00000000},
+	{0x0000981c, 0x00020028},
+	{0x00009834, 0x6400a290},
+	{0x00009838, 0x0108ecff},
+	{0x0000983c, 0x0d000600},
+	{0x00009880, 0x201fff00},
+	{0x00009884, 0x00001042},
+	{0x000098a4, 0x00200400},
+	{0x000098b0, 0x32440bbe},
+	{0x000098d0, 0x004b6a8e},
+	{0x000098d4, 0x00000820},
+	{0x000098dc, 0x00000000},
+	{0x000098e4, 0x01ffffff},
+	{0x000098e8, 0x01ffffff},
+	{0x000098ec, 0x01ffffff},
+	{0x000098f0, 0x00000000},
+	{0x000098f4, 0x00000000},
+	{0x00009bf0, 0x80000000},
+	{0x00009c04, 0xff55ff55},
+	{0x00009c08, 0x0320ff55},
+	{0x00009c0c, 0x00000000},
+	{0x00009c10, 0x00000000},
+	{0x00009c14, 0x00046384},
+	{0x00009c18, 0x05b6b440},
+	{0x00009c1c, 0x00b6b440},
+	{0x00009d00, 0xc080a333},
+	{0x00009d04, 0x40206c10},
+	{0x00009d08, 0x009c4060},
+	{0x00009d0c, 0x9883800a},
+	{0x00009d10, 0x01834061},
+	{0x00009d14, 0x00c0040b},
+	{0x00009d18, 0x00000000},
+	{0x00009e08, 0x0038230c},
+	{0x00009e24, 0x990bb515},
+	{0x00009e28, 0x0c6f0000},
+	{0x00009e30, 0x06336f77},
+	{0x00009e34, 0x6af6532f},
+	{0x00009e38, 0x0cc80c00},
+	{0x00009e40, 0x15262820},
+	{0x00009e4c, 0x00001004},
+	{0x00009e50, 0x00ff03f1},
+	{0x00009e54, 0xe4c555c2},
+	{0x00009e58, 0xfd857722},
+	{0x00009e5c, 0xe9198724},
+	{0x00009fc0, 0x803e4788},
+	{0x00009fc4, 0x0001efb5},
+	{0x00009fcc, 0x40000014},
+	{0x00009fd0, 0x0a193b93},
+	{0x0000a20c, 0x00000000},
+	{0x0000a220, 0x00000000},
+	{0x0000a224, 0x00000000},
+	{0x0000a228, 0x10002310},
+	{0x0000a23c, 0x00000000},
+	{0x0000a244, 0x0c000000},
+	{0x0000a2a0, 0x00000001},
+	{0x0000a2c0, 0x00000001},
+	{0x0000a2c8, 0x00000000},
+	{0x0000a2cc, 0x18c43433},
+	{0x0000a2d4, 0x00000000},
+	{0x0000a2ec, 0x00000000},
+	{0x0000a2f0, 0x00000000},
+	{0x0000a2f4, 0x00000000},
+	{0x0000a2f8, 0x00000000},
+	{0x0000a344, 0x00000000},
+	{0x0000a34c, 0x00000000},
+	{0x0000a350, 0x0000a000},
+	{0x0000a364, 0x00000000},
+	{0x0000a370, 0x00000000},
+	{0x0000a390, 0x00000001},
+	{0x0000a394, 0x00000444},
+	{0x0000a398, 0x001f0e0f},
+	{0x0000a39c, 0x0075393f},
+	{0x0000a3a0, 0xb79f6427},
+	{0x0000a3c0, 0x20202020},
+	{0x0000a3c4, 0x22222220},
+	{0x0000a3c8, 0x20200020},
+	{0x0000a3cc, 0x20202020},
+	{0x0000a3d0, 0x20202020},
+	{0x0000a3d4, 0x20202020},
+	{0x0000a3d8, 0x20202020},
+	{0x0000a3dc, 0x20202020},
+	{0x0000a3e0, 0x20202020},
+	{0x0000a3e4, 0x20202020},
+	{0x0000a3e8, 0x20202020},
+	{0x0000a3ec, 0x20202020},
+	{0x0000a3f0, 0x00000000},
+	{0x0000a3f4, 0x00000006},
+	{0x0000a3f8, 0x0c9bd380},
+	{0x0000a3fc, 0x000f0f01},
+	{0x0000a400, 0x8fa91f01},
+	{0x0000a404, 0x00000000},
+	{0x0000a408, 0x0e79e5c6},
+	{0x0000a40c, 0x00820820},
+	{0x0000a414, 0x1ce739ce},
+	{0x0000a418, 0x2d001dce},
+	{0x0000a434, 0x00000000},
+	{0x0000a438, 0x00001801},
+	{0x0000a43c, 0x00100000},
+	{0x0000a444, 0x00000000},
+	{0x0000a448, 0x05000080},
+	{0x0000a44c, 0x00000001},
+	{0x0000a450, 0x00010000},
+	{0x0000a454, 0x07000000},
+	{0x0000a644, 0xbfad9d74},
+	{0x0000a648, 0x0048060a},
+	{0x0000a64c, 0x00002037},
+	{0x0000a670, 0x03020100},
+	{0x0000a674, 0x09080504},
+	{0x0000a678, 0x0d0c0b0a},
+	{0x0000a67c, 0x13121110},
+	{0x0000a680, 0x31301514},
+	{0x0000a684, 0x35343332},
+	{0x0000a688, 0x00000036},
+	{0x0000a690, 0x00000838},
+	{0x0000a6b0, 0x0000000a},
+	{0x0000a6b4, 0x00512c01},
+	{0x0000a7c0, 0x00000000},
+	{0x0000a7c4, 0xfffffffc},
+	{0x0000a7c8, 0x00000000},
+	{0x0000a7cc, 0x00000000},
+	{0x0000a7d0, 0x00000000},
+	{0x0000a7d4, 0x00000004},
+	{0x0000a7dc, 0x00000000},
+	{0x0000a7f0, 0x80000000},
+	{0x0000a8d0, 0x004b6a8e},
+	{0x0000a8d4, 0x00000820},
+	{0x0000a8dc, 0x00000000},
+	{0x0000a8f0, 0x00000000},
+	{0x0000a8f4, 0x00000000},
+	{0x0000abf0, 0x80000000},
+	{0x0000b2d0, 0x00000080},
+	{0x0000b2d4, 0x00000000},
+	{0x0000b2ec, 0x00000000},
+	{0x0000b2f0, 0x00000000},
+	{0x0000b2f4, 0x00000000},
+	{0x0000b2f8, 0x00000000},
+	{0x0000b408, 0x0e79e5c0},
+	{0x0000b40c, 0x00820820},
+	{0x0000b420, 0x00000000},
+	{0x0000b6b0, 0x0000000a},
+	{0x0000b6b4, 0x00000001},
+};
+
+static const u32 ar9462_2p1_baseband_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00009810, 0xd00a8005, 0xd00a8005, 0xd00a8011, 0xd00a800d},
+	{0x00009820, 0x206a022e, 0x206a022e, 0x206a012e, 0x206a01ae},
+	{0x00009824, 0x63c640de, 0x5ac640d0, 0x5ac640d0, 0x63c640da},
+	{0x00009828, 0x0796be89, 0x0696b081, 0x0696b881, 0x09143e81},
+	{0x0000982c, 0x05eea6d4, 0x05eea6d4, 0x05eea6d4, 0x05eea6d4},
+	{0x00009830, 0x0000059c, 0x0000059c, 0x0000119c, 0x0000119c},
+	{0x00009c00, 0x000000c4, 0x000000c4, 0x000000c4, 0x000000c4},
+	{0x00009e00, 0x0372111a, 0x0372111a, 0x037216a0, 0x037216a2},
+	{0x00009e04, 0x001c2020, 0x001c2020, 0x001c2020, 0x001c2020},
+	{0x00009e0c, 0x6c4000e2, 0x6d4000e2, 0x6d4000e2, 0x6c4000d8},
+	{0x00009e10, 0x92c88d2e, 0x7ec88d2e, 0x7ec84d2e, 0x7ec86d2e},
+	{0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3236605e, 0x32365a5e},
+	{0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
+	{0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
+	{0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021},
+	{0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c282},
+	{0x00009e44, 0x62321e27, 0x62321e27, 0xfe291e27, 0xfe291e27},
+	{0x00009e48, 0x5030201a, 0x5030201a, 0x50302012, 0x50302012},
+	{0x00009fc8, 0x0003f000, 0x0003f000, 0x0001a000, 0x0001a000},
+	{0x0000a204, 0x01318fc0, 0x01318fc4, 0x01318fc4, 0x01318fc0},
+	{0x0000a208, 0x00000104, 0x00000104, 0x00000004, 0x00000004},
+	{0x0000a22c, 0x01026a2f, 0x01026a27, 0x01026a2f, 0x01026a2f},
+	{0x0000a230, 0x0000400a, 0x00004014, 0x00004016, 0x0000400b},
+	{0x0000a234, 0x00000fff, 0x10000fff, 0x10000fff, 0x00000fff},
+	{0x0000a238, 0xffb81018, 0xffb81018, 0xffb81018, 0xffb81018},
+	{0x0000a250, 0x00000000, 0x00000000, 0x00000210, 0x00000108},
+	{0x0000a254, 0x000007d0, 0x00000fa0, 0x00001130, 0x00000898},
+	{0x0000a258, 0x02020002, 0x02020002, 0x02020002, 0x02020002},
+	{0x0000a25c, 0x01000e0e, 0x01000e0e, 0x01000e0e, 0x01000e0e},
+	{0x0000a260, 0x0a021501, 0x0a021501, 0x3a021501, 0x3a021501},
+	{0x0000a264, 0x00000e0e, 0x00000e0e, 0x00000e0e, 0x00000e0e},
+	{0x0000a280, 0x00000007, 0x00000007, 0x0000000b, 0x0000000b},
+	{0x0000a284, 0x00000000, 0x00000000, 0x00000150, 0x00000150},
+	{0x0000a288, 0x00000110, 0x00000110, 0x00000110, 0x00000110},
+	{0x0000a28c, 0x00022222, 0x00022222, 0x00022222, 0x00022222},
+	{0x0000a2c4, 0x00158d18, 0x00158d18, 0x00158d18, 0x00158d18},
+	{0x0000a2d0, 0x00041981, 0x00041981, 0x00041981, 0x00041982},
+	{0x0000a2d8, 0x7999a83b, 0x7999a83b, 0x7999a83b, 0x7999a83b},
+	{0x0000a358, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a3a4, 0x00000050, 0x00000050, 0x00000000, 0x00000000},
+	{0x0000a3a8, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa},
+	{0x0000a3ac, 0xaaaaaa00, 0xaa30aa30, 0xaaaaaa00, 0xaaaaaa00},
+	{0x0000a41c, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce},
+	{0x0000a420, 0x000001ce, 0x000001ce, 0x000001ce, 0x000001ce},
+	{0x0000a424, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce},
+	{0x0000a428, 0x000001ce, 0x000001ce, 0x000001ce, 0x000001ce},
+	{0x0000a42c, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce},
+	{0x0000a430, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce},
+	{0x0000a830, 0x0000019c, 0x0000019c, 0x0000019c, 0x0000019c},
+	{0x0000ae04, 0x001c0000, 0x001c0000, 0x001c0000, 0x00100000},
+	{0x0000ae18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000ae1c, 0x0000019c, 0x0000019c, 0x0000019c, 0x0000019c},
+	{0x0000ae20, 0x000001b5, 0x000001b5, 0x000001ce, 0x000001ce},
+	{0x0000b284, 0x00000000, 0x00000000, 0x00000550, 0x00000550},
+};
+
+static const u32 ar9462_2p1_radio_core[][2] = {
+	/* Addr      allmodes  */
+	{0x00016000, 0x36db6db6},
+	{0x00016004, 0x6db6db40},
+	{0x00016008, 0x73f00000},
+	{0x0001600c, 0x00000000},
+	{0x00016010, 0x6d820001},
+	{0x00016040, 0x7f80fff8},
+	{0x0001604c, 0x2699e04f},
+	{0x00016050, 0x6db6db6c},
+	{0x00016058, 0x6c200000},
+	{0x00016080, 0x000c0000},
+	{0x00016084, 0x9a68048c},
+	{0x00016088, 0x54214514},
+	{0x0001608c, 0x1203040b},
+	{0x00016090, 0x24926490},
+	{0x00016098, 0xd2888888},
+	{0x000160a0, 0x0a108ffe},
+	{0x000160a4, 0x812fc491},
+	{0x000160a8, 0x423c8000},
+	{0x000160b4, 0x92000000},
+	{0x000160b8, 0x0285dddc},
+	{0x000160bc, 0x02908888},
+	{0x000160c0, 0x00adb6d0},
+	{0x000160c4, 0x6db6db60},
+	{0x000160c8, 0x6db6db6c},
+	{0x000160cc, 0x0de6c1b0},
+	{0x00016100, 0x3fffbe04},
+	{0x00016104, 0xfff80000},
+	{0x00016108, 0x00200400},
+	{0x00016110, 0x00000000},
+	{0x00016144, 0x02084080},
+	{0x00016148, 0x000080c0},
+	{0x00016280, 0x050a0001},
+	{0x00016284, 0x3d841418},
+	{0x00016288, 0x00000000},
+	{0x0001628c, 0xe3000000},
+	{0x00016290, 0xa1005080},
+	{0x00016294, 0x00000020},
+	{0x00016298, 0x54a82900},
+	{0x00016340, 0x121e4276},
+	{0x00016344, 0x00300000},
+	{0x00016400, 0x36db6db6},
+	{0x00016404, 0x6db6db40},
+	{0x00016408, 0x73f00000},
+	{0x0001640c, 0x00000000},
+	{0x00016410, 0x6c800001},
+	{0x00016440, 0x7f80fff8},
+	{0x0001644c, 0x4699e04f},
+	{0x00016450, 0x6db6db6c},
+	{0x00016500, 0x3fffbe04},
+	{0x00016504, 0xfff80000},
+	{0x00016508, 0x00200400},
+	{0x00016510, 0x00000000},
+	{0x00016544, 0x02084080},
+	{0x00016548, 0x000080c0},
+};
+
+static const u32 ar9462_2p1_radio_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x0001609c, 0x0b8ee524, 0x0b8ee524, 0x0b8ee524, 0x0b8ee524},
+	{0x000160b0, 0x01d67f70, 0x01d67f70, 0x01d67f70, 0x01d67f70},
+	{0x0001610c, 0x48000000, 0x40000000, 0x40000000, 0x40000000},
+	{0x0001650c, 0x48000000, 0x40000000, 0x40000000, 0x40000000},
+};
+
+static const u32 ar9462_2p1_soc_preamble[][2] = {
+	/* Addr      allmodes  */
+	{0x000040a4, 0x00a0c1c9},
+	{0x00007020, 0x00000000},
+	{0x00007034, 0x00000002},
+	{0x00007038, 0x000004c2},
+};
+
+static const u32 ar9462_2p1_soc_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00007010, 0x00000033, 0x00000033, 0x00000033, 0x00000033},
+};
+
+static const u32 ar9462_2p1_radio_postamble_sys2ant[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x000160ac, 0xa4646c08, 0xa4646c08, 0x24645808, 0x24645808},
+	{0x00016140, 0x10804008, 0x10804008, 0x50804008, 0x50804008},
+	{0x00016540, 0x10804008, 0x10804008, 0x50804008, 0x50804008},
+};
+
+static const u32 ar9462_2p1_common_rx_gain[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a000, 0x00010000},
+	{0x0000a004, 0x00030002},
+	{0x0000a008, 0x00050004},
+	{0x0000a00c, 0x00810080},
+	{0x0000a010, 0x00830082},
+	{0x0000a014, 0x01810180},
+	{0x0000a018, 0x01830182},
+	{0x0000a01c, 0x01850184},
+	{0x0000a020, 0x01890188},
+	{0x0000a024, 0x018b018a},
+	{0x0000a028, 0x018d018c},
+	{0x0000a02c, 0x01910190},
+	{0x0000a030, 0x01930192},
+	{0x0000a034, 0x01950194},
+	{0x0000a038, 0x038a0196},
+	{0x0000a03c, 0x038c038b},
+	{0x0000a040, 0x0390038d},
+	{0x0000a044, 0x03920391},
+	{0x0000a048, 0x03940393},
+	{0x0000a04c, 0x03960395},
+	{0x0000a050, 0x00000000},
+	{0x0000a054, 0x00000000},
+	{0x0000a058, 0x00000000},
+	{0x0000a05c, 0x00000000},
+	{0x0000a060, 0x00000000},
+	{0x0000a064, 0x00000000},
+	{0x0000a068, 0x00000000},
+	{0x0000a06c, 0x00000000},
+	{0x0000a070, 0x00000000},
+	{0x0000a074, 0x00000000},
+	{0x0000a078, 0x00000000},
+	{0x0000a07c, 0x00000000},
+	{0x0000a080, 0x22222229},
+	{0x0000a084, 0x1d1d1d1d},
+	{0x0000a088, 0x1d1d1d1d},
+	{0x0000a08c, 0x1d1d1d1d},
+	{0x0000a090, 0x171d1d1d},
+	{0x0000a094, 0x11111717},
+	{0x0000a098, 0x00030311},
+	{0x0000a09c, 0x00000000},
+	{0x0000a0a0, 0x00000000},
+	{0x0000a0a4, 0x00000000},
+	{0x0000a0a8, 0x00000000},
+	{0x0000a0ac, 0x00000000},
+	{0x0000a0b0, 0x00000000},
+	{0x0000a0b4, 0x00000000},
+	{0x0000a0b8, 0x00000000},
+	{0x0000a0bc, 0x00000000},
+	{0x0000a0c0, 0x001f0000},
+	{0x0000a0c4, 0x01000101},
+	{0x0000a0c8, 0x011e011f},
+	{0x0000a0cc, 0x011c011d},
+	{0x0000a0d0, 0x02030204},
+	{0x0000a0d4, 0x02010202},
+	{0x0000a0d8, 0x021f0200},
+	{0x0000a0dc, 0x0302021e},
+	{0x0000a0e0, 0x03000301},
+	{0x0000a0e4, 0x031e031f},
+	{0x0000a0e8, 0x0402031d},
+	{0x0000a0ec, 0x04000401},
+	{0x0000a0f0, 0x041e041f},
+	{0x0000a0f4, 0x0502041d},
+	{0x0000a0f8, 0x05000501},
+	{0x0000a0fc, 0x051e051f},
+	{0x0000a100, 0x06010602},
+	{0x0000a104, 0x061f0600},
+	{0x0000a108, 0x061d061e},
+	{0x0000a10c, 0x07020703},
+	{0x0000a110, 0x07000701},
+	{0x0000a114, 0x00000000},
+	{0x0000a118, 0x00000000},
+	{0x0000a11c, 0x00000000},
+	{0x0000a120, 0x00000000},
+	{0x0000a124, 0x00000000},
+	{0x0000a128, 0x00000000},
+	{0x0000a12c, 0x00000000},
+	{0x0000a130, 0x00000000},
+	{0x0000a134, 0x00000000},
+	{0x0000a138, 0x00000000},
+	{0x0000a13c, 0x00000000},
+	{0x0000a140, 0x001f0000},
+	{0x0000a144, 0x01000101},
+	{0x0000a148, 0x011e011f},
+	{0x0000a14c, 0x011c011d},
+	{0x0000a150, 0x02030204},
+	{0x0000a154, 0x02010202},
+	{0x0000a158, 0x021f0200},
+	{0x0000a15c, 0x0302021e},
+	{0x0000a160, 0x03000301},
+	{0x0000a164, 0x031e031f},
+	{0x0000a168, 0x0402031d},
+	{0x0000a16c, 0x04000401},
+	{0x0000a170, 0x041e041f},
+	{0x0000a174, 0x0502041d},
+	{0x0000a178, 0x05000501},
+	{0x0000a17c, 0x051e051f},
+	{0x0000a180, 0x06010602},
+	{0x0000a184, 0x061f0600},
+	{0x0000a188, 0x061d061e},
+	{0x0000a18c, 0x07020703},
+	{0x0000a190, 0x07000701},
+	{0x0000a194, 0x00000000},
+	{0x0000a198, 0x00000000},
+	{0x0000a19c, 0x00000000},
+	{0x0000a1a0, 0x00000000},
+	{0x0000a1a4, 0x00000000},
+	{0x0000a1a8, 0x00000000},
+	{0x0000a1ac, 0x00000000},
+	{0x0000a1b0, 0x00000000},
+	{0x0000a1b4, 0x00000000},
+	{0x0000a1b8, 0x00000000},
+	{0x0000a1bc, 0x00000000},
+	{0x0000a1c0, 0x00000000},
+	{0x0000a1c4, 0x00000000},
+	{0x0000a1c8, 0x00000000},
+	{0x0000a1cc, 0x00000000},
+	{0x0000a1d0, 0x00000000},
+	{0x0000a1d4, 0x00000000},
+	{0x0000a1d8, 0x00000000},
+	{0x0000a1dc, 0x00000000},
+	{0x0000a1e0, 0x00000000},
+	{0x0000a1e4, 0x00000000},
+	{0x0000a1e8, 0x00000000},
+	{0x0000a1ec, 0x00000000},
+	{0x0000a1f0, 0x00000396},
+	{0x0000a1f4, 0x00000396},
+	{0x0000a1f8, 0x00000396},
+	{0x0000a1fc, 0x00000196},
+	{0x0000b000, 0x00010000},
+	{0x0000b004, 0x00030002},
+	{0x0000b008, 0x00050004},
+	{0x0000b00c, 0x00810080},
+	{0x0000b010, 0x00830082},
+	{0x0000b014, 0x01810180},
+	{0x0000b018, 0x01830182},
+	{0x0000b01c, 0x01850184},
+	{0x0000b020, 0x02810280},
+	{0x0000b024, 0x02830282},
+	{0x0000b028, 0x02850284},
+	{0x0000b02c, 0x02890288},
+	{0x0000b030, 0x028b028a},
+	{0x0000b034, 0x0388028c},
+	{0x0000b038, 0x038a0389},
+	{0x0000b03c, 0x038c038b},
+	{0x0000b040, 0x0390038d},
+	{0x0000b044, 0x03920391},
+	{0x0000b048, 0x03940393},
+	{0x0000b04c, 0x03960395},
+	{0x0000b050, 0x00000000},
+	{0x0000b054, 0x00000000},
+	{0x0000b058, 0x00000000},
+	{0x0000b05c, 0x00000000},
+	{0x0000b060, 0x00000000},
+	{0x0000b064, 0x00000000},
+	{0x0000b068, 0x00000000},
+	{0x0000b06c, 0x00000000},
+	{0x0000b070, 0x00000000},
+	{0x0000b074, 0x00000000},
+	{0x0000b078, 0x00000000},
+	{0x0000b07c, 0x00000000},
+	{0x0000b080, 0x2a2d2f32},
+	{0x0000b084, 0x21232328},
+	{0x0000b088, 0x19191c1e},
+	{0x0000b08c, 0x12141417},
+	{0x0000b090, 0x07070e0e},
+	{0x0000b094, 0x03030305},
+	{0x0000b098, 0x00000003},
+	{0x0000b09c, 0x00000000},
+	{0x0000b0a0, 0x00000000},
+	{0x0000b0a4, 0x00000000},
+	{0x0000b0a8, 0x00000000},
+	{0x0000b0ac, 0x00000000},
+	{0x0000b0b0, 0x00000000},
+	{0x0000b0b4, 0x00000000},
+	{0x0000b0b8, 0x00000000},
+	{0x0000b0bc, 0x00000000},
+	{0x0000b0c0, 0x003f0020},
+	{0x0000b0c4, 0x00400041},
+	{0x0000b0c8, 0x0140005f},
+	{0x0000b0cc, 0x0160015f},
+	{0x0000b0d0, 0x017e017f},
+	{0x0000b0d4, 0x02410242},
+	{0x0000b0d8, 0x025f0240},
+	{0x0000b0dc, 0x027f0260},
+	{0x0000b0e0, 0x0341027e},
+	{0x0000b0e4, 0x035f0340},
+	{0x0000b0e8, 0x037f0360},
+	{0x0000b0ec, 0x04400441},
+	{0x0000b0f0, 0x0460045f},
+	{0x0000b0f4, 0x0541047f},
+	{0x0000b0f8, 0x055f0540},
+	{0x0000b0fc, 0x057f0560},
+	{0x0000b100, 0x06400641},
+	{0x0000b104, 0x0660065f},
+	{0x0000b108, 0x067e067f},
+	{0x0000b10c, 0x07410742},
+	{0x0000b110, 0x075f0740},
+	{0x0000b114, 0x077f0760},
+	{0x0000b118, 0x07800781},
+	{0x0000b11c, 0x07a0079f},
+	{0x0000b120, 0x07c107bf},
+	{0x0000b124, 0x000007c0},
+	{0x0000b128, 0x00000000},
+	{0x0000b12c, 0x00000000},
+	{0x0000b130, 0x00000000},
+	{0x0000b134, 0x00000000},
+	{0x0000b138, 0x00000000},
+	{0x0000b13c, 0x00000000},
+	{0x0000b140, 0x003f0020},
+	{0x0000b144, 0x00400041},
+	{0x0000b148, 0x0140005f},
+	{0x0000b14c, 0x0160015f},
+	{0x0000b150, 0x017e017f},
+	{0x0000b154, 0x02410242},
+	{0x0000b158, 0x025f0240},
+	{0x0000b15c, 0x027f0260},
+	{0x0000b160, 0x0341027e},
+	{0x0000b164, 0x035f0340},
+	{0x0000b168, 0x037f0360},
+	{0x0000b16c, 0x04400441},
+	{0x0000b170, 0x0460045f},
+	{0x0000b174, 0x0541047f},
+	{0x0000b178, 0x055f0540},
+	{0x0000b17c, 0x057f0560},
+	{0x0000b180, 0x06400641},
+	{0x0000b184, 0x0660065f},
+	{0x0000b188, 0x067e067f},
+	{0x0000b18c, 0x07410742},
+	{0x0000b190, 0x075f0740},
+	{0x0000b194, 0x077f0760},
+	{0x0000b198, 0x07800781},
+	{0x0000b19c, 0x07a0079f},
+	{0x0000b1a0, 0x07c107bf},
+	{0x0000b1a4, 0x000007c0},
+	{0x0000b1a8, 0x00000000},
+	{0x0000b1ac, 0x00000000},
+	{0x0000b1b0, 0x00000000},
+	{0x0000b1b4, 0x00000000},
+	{0x0000b1b8, 0x00000000},
+	{0x0000b1bc, 0x00000000},
+	{0x0000b1c0, 0x00000000},
+	{0x0000b1c4, 0x00000000},
+	{0x0000b1c8, 0x00000000},
+	{0x0000b1cc, 0x00000000},
+	{0x0000b1d0, 0x00000000},
+	{0x0000b1d4, 0x00000000},
+	{0x0000b1d8, 0x00000000},
+	{0x0000b1dc, 0x00000000},
+	{0x0000b1e0, 0x00000000},
+	{0x0000b1e4, 0x00000000},
+	{0x0000b1e8, 0x00000000},
+	{0x0000b1ec, 0x00000000},
+	{0x0000b1f0, 0x00000396},
+	{0x0000b1f4, 0x00000396},
+	{0x0000b1f8, 0x00000396},
+	{0x0000b1fc, 0x00000196},
+};
+
+static const u32 ar9462_2p1_common_mixed_rx_gain[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a000, 0x00010000},
+	{0x0000a004, 0x00030002},
+	{0x0000a008, 0x00050004},
+	{0x0000a00c, 0x00810080},
+	{0x0000a010, 0x00830082},
+	{0x0000a014, 0x01810180},
+	{0x0000a018, 0x01830182},
+	{0x0000a01c, 0x01850184},
+	{0x0000a020, 0x01890188},
+	{0x0000a024, 0x018b018a},
+	{0x0000a028, 0x018d018c},
+	{0x0000a02c, 0x03820190},
+	{0x0000a030, 0x03840383},
+	{0x0000a034, 0x03880385},
+	{0x0000a038, 0x038a0389},
+	{0x0000a03c, 0x038c038b},
+	{0x0000a040, 0x0390038d},
+	{0x0000a044, 0x03920391},
+	{0x0000a048, 0x03940393},
+	{0x0000a04c, 0x03960395},
+	{0x0000a050, 0x00000000},
+	{0x0000a054, 0x00000000},
+	{0x0000a058, 0x00000000},
+	{0x0000a05c, 0x00000000},
+	{0x0000a060, 0x00000000},
+	{0x0000a064, 0x00000000},
+	{0x0000a068, 0x00000000},
+	{0x0000a06c, 0x00000000},
+	{0x0000a070, 0x00000000},
+	{0x0000a074, 0x00000000},
+	{0x0000a078, 0x00000000},
+	{0x0000a07c, 0x00000000},
+	{0x0000a080, 0x29292929},
+	{0x0000a084, 0x29292929},
+	{0x0000a088, 0x29292929},
+	{0x0000a08c, 0x29292929},
+	{0x0000a090, 0x22292929},
+	{0x0000a094, 0x1d1d2222},
+	{0x0000a098, 0x0c111117},
+	{0x0000a09c, 0x00030303},
+	{0x0000a0a0, 0x00000000},
+	{0x0000a0a4, 0x00000000},
+	{0x0000a0a8, 0x00000000},
+	{0x0000a0ac, 0x00000000},
+	{0x0000a0b0, 0x00000000},
+	{0x0000a0b4, 0x00000000},
+	{0x0000a0b8, 0x00000000},
+	{0x0000a0bc, 0x00000000},
+	{0x0000a0c0, 0x001f0000},
+	{0x0000a0c4, 0x01000101},
+	{0x0000a0c8, 0x011e011f},
+	{0x0000a0cc, 0x011c011d},
+	{0x0000a0d0, 0x02030204},
+	{0x0000a0d4, 0x02010202},
+	{0x0000a0d8, 0x021f0200},
+	{0x0000a0dc, 0x0302021e},
+	{0x0000a0e0, 0x03000301},
+	{0x0000a0e4, 0x031e031f},
+	{0x0000a0e8, 0x0402031d},
+	{0x0000a0ec, 0x04000401},
+	{0x0000a0f0, 0x041e041f},
+	{0x0000a0f4, 0x0502041d},
+	{0x0000a0f8, 0x05000501},
+	{0x0000a0fc, 0x051e051f},
+	{0x0000a100, 0x06010602},
+	{0x0000a104, 0x061f0600},
+	{0x0000a108, 0x061d061e},
+	{0x0000a10c, 0x07020703},
+	{0x0000a110, 0x07000701},
+	{0x0000a114, 0x00000000},
+	{0x0000a118, 0x00000000},
+	{0x0000a11c, 0x00000000},
+	{0x0000a120, 0x00000000},
+	{0x0000a124, 0x00000000},
+	{0x0000a128, 0x00000000},
+	{0x0000a12c, 0x00000000},
+	{0x0000a130, 0x00000000},
+	{0x0000a134, 0x00000000},
+	{0x0000a138, 0x00000000},
+	{0x0000a13c, 0x00000000},
+	{0x0000a140, 0x001f0000},
+	{0x0000a144, 0x01000101},
+	{0x0000a148, 0x011e011f},
+	{0x0000a14c, 0x011c011d},
+	{0x0000a150, 0x02030204},
+	{0x0000a154, 0x02010202},
+	{0x0000a158, 0x021f0200},
+	{0x0000a15c, 0x0302021e},
+	{0x0000a160, 0x03000301},
+	{0x0000a164, 0x031e031f},
+	{0x0000a168, 0x0402031d},
+	{0x0000a16c, 0x04000401},
+	{0x0000a170, 0x041e041f},
+	{0x0000a174, 0x0502041d},
+	{0x0000a178, 0x05000501},
+	{0x0000a17c, 0x051e051f},
+	{0x0000a180, 0x06010602},
+	{0x0000a184, 0x061f0600},
+	{0x0000a188, 0x061d061e},
+	{0x0000a18c, 0x07020703},
+	{0x0000a190, 0x07000701},
+	{0x0000a194, 0x00000000},
+	{0x0000a198, 0x00000000},
+	{0x0000a19c, 0x00000000},
+	{0x0000a1a0, 0x00000000},
+	{0x0000a1a4, 0x00000000},
+	{0x0000a1a8, 0x00000000},
+	{0x0000a1ac, 0x00000000},
+	{0x0000a1b0, 0x00000000},
+	{0x0000a1b4, 0x00000000},
+	{0x0000a1b8, 0x00000000},
+	{0x0000a1bc, 0x00000000},
+	{0x0000a1c0, 0x00000000},
+	{0x0000a1c4, 0x00000000},
+	{0x0000a1c8, 0x00000000},
+	{0x0000a1cc, 0x00000000},
+	{0x0000a1d0, 0x00000000},
+	{0x0000a1d4, 0x00000000},
+	{0x0000a1d8, 0x00000000},
+	{0x0000a1dc, 0x00000000},
+	{0x0000a1e0, 0x00000000},
+	{0x0000a1e4, 0x00000000},
+	{0x0000a1e8, 0x00000000},
+	{0x0000a1ec, 0x00000000},
+	{0x0000a1f0, 0x00000396},
+	{0x0000a1f4, 0x00000396},
+	{0x0000a1f8, 0x00000396},
+	{0x0000a1fc, 0x00000196},
+	{0x0000b000, 0x00010000},
+	{0x0000b004, 0x00030002},
+	{0x0000b008, 0x00050004},
+	{0x0000b00c, 0x00810080},
+	{0x0000b010, 0x00830082},
+	{0x0000b014, 0x01810180},
+	{0x0000b018, 0x01830182},
+	{0x0000b01c, 0x01850184},
+	{0x0000b020, 0x02810280},
+	{0x0000b024, 0x02830282},
+	{0x0000b028, 0x02850284},
+	{0x0000b02c, 0x02890288},
+	{0x0000b030, 0x028b028a},
+	{0x0000b034, 0x0388028c},
+	{0x0000b038, 0x038a0389},
+	{0x0000b03c, 0x038c038b},
+	{0x0000b040, 0x0390038d},
+	{0x0000b044, 0x03920391},
+	{0x0000b048, 0x03940393},
+	{0x0000b04c, 0x03960395},
+	{0x0000b050, 0x00000000},
+	{0x0000b054, 0x00000000},
+	{0x0000b058, 0x00000000},
+	{0x0000b05c, 0x00000000},
+	{0x0000b060, 0x00000000},
+	{0x0000b064, 0x00000000},
+	{0x0000b068, 0x00000000},
+	{0x0000b06c, 0x00000000},
+	{0x0000b070, 0x00000000},
+	{0x0000b074, 0x00000000},
+	{0x0000b078, 0x00000000},
+	{0x0000b07c, 0x00000000},
+	{0x0000b080, 0x2a2d2f32},
+	{0x0000b084, 0x21232328},
+	{0x0000b088, 0x19191c1e},
+	{0x0000b08c, 0x12141417},
+	{0x0000b090, 0x07070e0e},
+	{0x0000b094, 0x03030305},
+	{0x0000b098, 0x00000003},
+	{0x0000b09c, 0x00000000},
+	{0x0000b0a0, 0x00000000},
+	{0x0000b0a4, 0x00000000},
+	{0x0000b0a8, 0x00000000},
+	{0x0000b0ac, 0x00000000},
+	{0x0000b0b0, 0x00000000},
+	{0x0000b0b4, 0x00000000},
+	{0x0000b0b8, 0x00000000},
+	{0x0000b0bc, 0x00000000},
+	{0x0000b0c0, 0x003f0020},
+	{0x0000b0c4, 0x00400041},
+	{0x0000b0c8, 0x0140005f},
+	{0x0000b0cc, 0x0160015f},
+	{0x0000b0d0, 0x017e017f},
+	{0x0000b0d4, 0x02410242},
+	{0x0000b0d8, 0x025f0240},
+	{0x0000b0dc, 0x027f0260},
+	{0x0000b0e0, 0x0341027e},
+	{0x0000b0e4, 0x035f0340},
+	{0x0000b0e8, 0x037f0360},
+	{0x0000b0ec, 0x04400441},
+	{0x0000b0f0, 0x0460045f},
+	{0x0000b0f4, 0x0541047f},
+	{0x0000b0f8, 0x055f0540},
+	{0x0000b0fc, 0x057f0560},
+	{0x0000b100, 0x06400641},
+	{0x0000b104, 0x0660065f},
+	{0x0000b108, 0x067e067f},
+	{0x0000b10c, 0x07410742},
+	{0x0000b110, 0x075f0740},
+	{0x0000b114, 0x077f0760},
+	{0x0000b118, 0x07800781},
+	{0x0000b11c, 0x07a0079f},
+	{0x0000b120, 0x07c107bf},
+	{0x0000b124, 0x000007c0},
+	{0x0000b128, 0x00000000},
+	{0x0000b12c, 0x00000000},
+	{0x0000b130, 0x00000000},
+	{0x0000b134, 0x00000000},
+	{0x0000b138, 0x00000000},
+	{0x0000b13c, 0x00000000},
+	{0x0000b140, 0x003f0020},
+	{0x0000b144, 0x00400041},
+	{0x0000b148, 0x0140005f},
+	{0x0000b14c, 0x0160015f},
+	{0x0000b150, 0x017e017f},
+	{0x0000b154, 0x02410242},
+	{0x0000b158, 0x025f0240},
+	{0x0000b15c, 0x027f0260},
+	{0x0000b160, 0x0341027e},
+	{0x0000b164, 0x035f0340},
+	{0x0000b168, 0x037f0360},
+	{0x0000b16c, 0x04400441},
+	{0x0000b170, 0x0460045f},
+	{0x0000b174, 0x0541047f},
+	{0x0000b178, 0x055f0540},
+	{0x0000b17c, 0x057f0560},
+	{0x0000b180, 0x06400641},
+	{0x0000b184, 0x0660065f},
+	{0x0000b188, 0x067e067f},
+	{0x0000b18c, 0x07410742},
+	{0x0000b190, 0x075f0740},
+	{0x0000b194, 0x077f0760},
+	{0x0000b198, 0x07800781},
+	{0x0000b19c, 0x07a0079f},
+	{0x0000b1a0, 0x07c107bf},
+	{0x0000b1a4, 0x000007c0},
+	{0x0000b1a8, 0x00000000},
+	{0x0000b1ac, 0x00000000},
+	{0x0000b1b0, 0x00000000},
+	{0x0000b1b4, 0x00000000},
+	{0x0000b1b8, 0x00000000},
+	{0x0000b1bc, 0x00000000},
+	{0x0000b1c0, 0x00000000},
+	{0x0000b1c4, 0x00000000},
+	{0x0000b1c8, 0x00000000},
+	{0x0000b1cc, 0x00000000},
+	{0x0000b1d0, 0x00000000},
+	{0x0000b1d4, 0x00000000},
+	{0x0000b1d8, 0x00000000},
+	{0x0000b1dc, 0x00000000},
+	{0x0000b1e0, 0x00000000},
+	{0x0000b1e4, 0x00000000},
+	{0x0000b1e8, 0x00000000},
+	{0x0000b1ec, 0x00000000},
+	{0x0000b1f0, 0x00000396},
+	{0x0000b1f4, 0x00000396},
+	{0x0000b1f8, 0x00000396},
+	{0x0000b1fc, 0x00000196},
+};
+
+static const u32 ar9462_2p1_baseband_core_mix_rxgain[][2] = {
+	/* Addr      allmodes  */
+	{0x00009fd0, 0x0a2d6b93},
+};
+
+static const u32 ar9462_2p1_baseband_postamble_mix_rxgain[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00009820, 0x206a022e, 0x206a022e, 0x206a01ae, 0x206a01ae},
+	{0x00009824, 0x63c640de, 0x5ac640d0, 0x63c640da, 0x63c640da},
+	{0x00009828, 0x0796be89, 0x0696b081, 0x0916be81, 0x0916be81},
+	{0x00009e0c, 0x6c4000e2, 0x6d4000e2, 0x6d4000d8, 0x6c4000d8},
+	{0x00009e10, 0x92c88d2e, 0x7ec88d2e, 0x7ec86d2e, 0x7ec86d2e},
+	{0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3236605e, 0x32395c5e},
+};
+
+static const u32 ar9462_2p1_baseband_postamble_5g_xlna[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c282},
+};
+
+static const u32 ar9462_2p1_common_wo_xlna_rx_gain[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a000, 0x00010000},
+	{0x0000a004, 0x00030002},
+	{0x0000a008, 0x00050004},
+	{0x0000a00c, 0x00810080},
+	{0x0000a010, 0x00830082},
+	{0x0000a014, 0x01810180},
+	{0x0000a018, 0x01830182},
+	{0x0000a01c, 0x01850184},
+	{0x0000a020, 0x01890188},
+	{0x0000a024, 0x018b018a},
+	{0x0000a028, 0x018d018c},
+	{0x0000a02c, 0x03820190},
+	{0x0000a030, 0x03840383},
+	{0x0000a034, 0x03880385},
+	{0x0000a038, 0x038a0389},
+	{0x0000a03c, 0x038c038b},
+	{0x0000a040, 0x0390038d},
+	{0x0000a044, 0x03920391},
+	{0x0000a048, 0x03940393},
+	{0x0000a04c, 0x03960395},
+	{0x0000a050, 0x00000000},
+	{0x0000a054, 0x00000000},
+	{0x0000a058, 0x00000000},
+	{0x0000a05c, 0x00000000},
+	{0x0000a060, 0x00000000},
+	{0x0000a064, 0x00000000},
+	{0x0000a068, 0x00000000},
+	{0x0000a06c, 0x00000000},
+	{0x0000a070, 0x00000000},
+	{0x0000a074, 0x00000000},
+	{0x0000a078, 0x00000000},
+	{0x0000a07c, 0x00000000},
+	{0x0000a080, 0x29292929},
+	{0x0000a084, 0x29292929},
+	{0x0000a088, 0x29292929},
+	{0x0000a08c, 0x29292929},
+	{0x0000a090, 0x22292929},
+	{0x0000a094, 0x1d1d2222},
+	{0x0000a098, 0x0c111117},
+	{0x0000a09c, 0x00030303},
+	{0x0000a0a0, 0x00000000},
+	{0x0000a0a4, 0x00000000},
+	{0x0000a0a8, 0x00000000},
+	{0x0000a0ac, 0x00000000},
+	{0x0000a0b0, 0x00000000},
+	{0x0000a0b4, 0x00000000},
+	{0x0000a0b8, 0x00000000},
+	{0x0000a0bc, 0x00000000},
+	{0x0000a0c0, 0x001f0000},
+	{0x0000a0c4, 0x01000101},
+	{0x0000a0c8, 0x011e011f},
+	{0x0000a0cc, 0x011c011d},
+	{0x0000a0d0, 0x02030204},
+	{0x0000a0d4, 0x02010202},
+	{0x0000a0d8, 0x021f0200},
+	{0x0000a0dc, 0x0302021e},
+	{0x0000a0e0, 0x03000301},
+	{0x0000a0e4, 0x031e031f},
+	{0x0000a0e8, 0x0402031d},
+	{0x0000a0ec, 0x04000401},
+	{0x0000a0f0, 0x041e041f},
+	{0x0000a0f4, 0x0502041d},
+	{0x0000a0f8, 0x05000501},
+	{0x0000a0fc, 0x051e051f},
+	{0x0000a100, 0x06010602},
+	{0x0000a104, 0x061f0600},
+	{0x0000a108, 0x061d061e},
+	{0x0000a10c, 0x07020703},
+	{0x0000a110, 0x07000701},
+	{0x0000a114, 0x00000000},
+	{0x0000a118, 0x00000000},
+	{0x0000a11c, 0x00000000},
+	{0x0000a120, 0x00000000},
+	{0x0000a124, 0x00000000},
+	{0x0000a128, 0x00000000},
+	{0x0000a12c, 0x00000000},
+	{0x0000a130, 0x00000000},
+	{0x0000a134, 0x00000000},
+	{0x0000a138, 0x00000000},
+	{0x0000a13c, 0x00000000},
+	{0x0000a140, 0x001f0000},
+	{0x0000a144, 0x01000101},
+	{0x0000a148, 0x011e011f},
+	{0x0000a14c, 0x011c011d},
+	{0x0000a150, 0x02030204},
+	{0x0000a154, 0x02010202},
+	{0x0000a158, 0x021f0200},
+	{0x0000a15c, 0x0302021e},
+	{0x0000a160, 0x03000301},
+	{0x0000a164, 0x031e031f},
+	{0x0000a168, 0x0402031d},
+	{0x0000a16c, 0x04000401},
+	{0x0000a170, 0x041e041f},
+	{0x0000a174, 0x0502041d},
+	{0x0000a178, 0x05000501},
+	{0x0000a17c, 0x051e051f},
+	{0x0000a180, 0x06010602},
+	{0x0000a184, 0x061f0600},
+	{0x0000a188, 0x061d061e},
+	{0x0000a18c, 0x07020703},
+	{0x0000a190, 0x07000701},
+	{0x0000a194, 0x00000000},
+	{0x0000a198, 0x00000000},
+	{0x0000a19c, 0x00000000},
+	{0x0000a1a0, 0x00000000},
+	{0x0000a1a4, 0x00000000},
+	{0x0000a1a8, 0x00000000},
+	{0x0000a1ac, 0x00000000},
+	{0x0000a1b0, 0x00000000},
+	{0x0000a1b4, 0x00000000},
+	{0x0000a1b8, 0x00000000},
+	{0x0000a1bc, 0x00000000},
+	{0x0000a1c0, 0x00000000},
+	{0x0000a1c4, 0x00000000},
+	{0x0000a1c8, 0x00000000},
+	{0x0000a1cc, 0x00000000},
+	{0x0000a1d0, 0x00000000},
+	{0x0000a1d4, 0x00000000},
+	{0x0000a1d8, 0x00000000},
+	{0x0000a1dc, 0x00000000},
+	{0x0000a1e0, 0x00000000},
+	{0x0000a1e4, 0x00000000},
+	{0x0000a1e8, 0x00000000},
+	{0x0000a1ec, 0x00000000},
+	{0x0000a1f0, 0x00000396},
+	{0x0000a1f4, 0x00000396},
+	{0x0000a1f8, 0x00000396},
+	{0x0000a1fc, 0x00000196},
+	{0x0000b000, 0x00010000},
+	{0x0000b004, 0x00030002},
+	{0x0000b008, 0x00050004},
+	{0x0000b00c, 0x00810080},
+	{0x0000b010, 0x00830082},
+	{0x0000b014, 0x01810180},
+	{0x0000b018, 0x01830182},
+	{0x0000b01c, 0x01850184},
+	{0x0000b020, 0x02810280},
+	{0x0000b024, 0x02830282},
+	{0x0000b028, 0x02850284},
+	{0x0000b02c, 0x02890288},
+	{0x0000b030, 0x028b028a},
+	{0x0000b034, 0x0388028c},
+	{0x0000b038, 0x038a0389},
+	{0x0000b03c, 0x038c038b},
+	{0x0000b040, 0x0390038d},
+	{0x0000b044, 0x03920391},
+	{0x0000b048, 0x03940393},
+	{0x0000b04c, 0x03960395},
+	{0x0000b050, 0x00000000},
+	{0x0000b054, 0x00000000},
+	{0x0000b058, 0x00000000},
+	{0x0000b05c, 0x00000000},
+	{0x0000b060, 0x00000000},
+	{0x0000b064, 0x00000000},
+	{0x0000b068, 0x00000000},
+	{0x0000b06c, 0x00000000},
+	{0x0000b070, 0x00000000},
+	{0x0000b074, 0x00000000},
+	{0x0000b078, 0x00000000},
+	{0x0000b07c, 0x00000000},
+	{0x0000b080, 0x32323232},
+	{0x0000b084, 0x2f2f3232},
+	{0x0000b088, 0x23282a2d},
+	{0x0000b08c, 0x1c1e2123},
+	{0x0000b090, 0x14171919},
+	{0x0000b094, 0x0e0e1214},
+	{0x0000b098, 0x03050707},
+	{0x0000b09c, 0x00030303},
+	{0x0000b0a0, 0x00000000},
+	{0x0000b0a4, 0x00000000},
+	{0x0000b0a8, 0x00000000},
+	{0x0000b0ac, 0x00000000},
+	{0x0000b0b0, 0x00000000},
+	{0x0000b0b4, 0x00000000},
+	{0x0000b0b8, 0x00000000},
+	{0x0000b0bc, 0x00000000},
+	{0x0000b0c0, 0x003f0020},
+	{0x0000b0c4, 0x00400041},
+	{0x0000b0c8, 0x0140005f},
+	{0x0000b0cc, 0x0160015f},
+	{0x0000b0d0, 0x017e017f},
+	{0x0000b0d4, 0x02410242},
+	{0x0000b0d8, 0x025f0240},
+	{0x0000b0dc, 0x027f0260},
+	{0x0000b0e0, 0x0341027e},
+	{0x0000b0e4, 0x035f0340},
+	{0x0000b0e8, 0x037f0360},
+	{0x0000b0ec, 0x04400441},
+	{0x0000b0f0, 0x0460045f},
+	{0x0000b0f4, 0x0541047f},
+	{0x0000b0f8, 0x055f0540},
+	{0x0000b0fc, 0x057f0560},
+	{0x0000b100, 0x06400641},
+	{0x0000b104, 0x0660065f},
+	{0x0000b108, 0x067e067f},
+	{0x0000b10c, 0x07410742},
+	{0x0000b110, 0x075f0740},
+	{0x0000b114, 0x077f0760},
+	{0x0000b118, 0x07800781},
+	{0x0000b11c, 0x07a0079f},
+	{0x0000b120, 0x07c107bf},
+	{0x0000b124, 0x000007c0},
+	{0x0000b128, 0x00000000},
+	{0x0000b12c, 0x00000000},
+	{0x0000b130, 0x00000000},
+	{0x0000b134, 0x00000000},
+	{0x0000b138, 0x00000000},
+	{0x0000b13c, 0x00000000},
+	{0x0000b140, 0x003f0020},
+	{0x0000b144, 0x00400041},
+	{0x0000b148, 0x0140005f},
+	{0x0000b14c, 0x0160015f},
+	{0x0000b150, 0x017e017f},
+	{0x0000b154, 0x02410242},
+	{0x0000b158, 0x025f0240},
+	{0x0000b15c, 0x027f0260},
+	{0x0000b160, 0x0341027e},
+	{0x0000b164, 0x035f0340},
+	{0x0000b168, 0x037f0360},
+	{0x0000b16c, 0x04400441},
+	{0x0000b170, 0x0460045f},
+	{0x0000b174, 0x0541047f},
+	{0x0000b178, 0x055f0540},
+	{0x0000b17c, 0x057f0560},
+	{0x0000b180, 0x06400641},
+	{0x0000b184, 0x0660065f},
+	{0x0000b188, 0x067e067f},
+	{0x0000b18c, 0x07410742},
+	{0x0000b190, 0x075f0740},
+	{0x0000b194, 0x077f0760},
+	{0x0000b198, 0x07800781},
+	{0x0000b19c, 0x07a0079f},
+	{0x0000b1a0, 0x07c107bf},
+	{0x0000b1a4, 0x000007c0},
+	{0x0000b1a8, 0x00000000},
+	{0x0000b1ac, 0x00000000},
+	{0x0000b1b0, 0x00000000},
+	{0x0000b1b4, 0x00000000},
+	{0x0000b1b8, 0x00000000},
+	{0x0000b1bc, 0x00000000},
+	{0x0000b1c0, 0x00000000},
+	{0x0000b1c4, 0x00000000},
+	{0x0000b1c8, 0x00000000},
+	{0x0000b1cc, 0x00000000},
+	{0x0000b1d0, 0x00000000},
+	{0x0000b1d4, 0x00000000},
+	{0x0000b1d8, 0x00000000},
+	{0x0000b1dc, 0x00000000},
+	{0x0000b1e0, 0x00000000},
+	{0x0000b1e4, 0x00000000},
+	{0x0000b1e8, 0x00000000},
+	{0x0000b1ec, 0x00000000},
+	{0x0000b1f0, 0x00000396},
+	{0x0000b1f4, 0x00000396},
+	{0x0000b1f8, 0x00000396},
+	{0x0000b1fc, 0x00000196},
+};
+
+static const u32 ar9462_2p1_common_5g_xlna_only_rx_gain[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a000, 0x00010000},
+	{0x0000a004, 0x00030002},
+	{0x0000a008, 0x00050004},
+	{0x0000a00c, 0x00810080},
+	{0x0000a010, 0x00830082},
+	{0x0000a014, 0x01810180},
+	{0x0000a018, 0x01830182},
+	{0x0000a01c, 0x01850184},
+	{0x0000a020, 0x01890188},
+	{0x0000a024, 0x018b018a},
+	{0x0000a028, 0x018d018c},
+	{0x0000a02c, 0x03820190},
+	{0x0000a030, 0x03840383},
+	{0x0000a034, 0x03880385},
+	{0x0000a038, 0x038a0389},
+	{0x0000a03c, 0x038c038b},
+	{0x0000a040, 0x0390038d},
+	{0x0000a044, 0x03920391},
+	{0x0000a048, 0x03940393},
+	{0x0000a04c, 0x03960395},
+	{0x0000a050, 0x00000000},
+	{0x0000a054, 0x00000000},
+	{0x0000a058, 0x00000000},
+	{0x0000a05c, 0x00000000},
+	{0x0000a060, 0x00000000},
+	{0x0000a064, 0x00000000},
+	{0x0000a068, 0x00000000},
+	{0x0000a06c, 0x00000000},
+	{0x0000a070, 0x00000000},
+	{0x0000a074, 0x00000000},
+	{0x0000a078, 0x00000000},
+	{0x0000a07c, 0x00000000},
+	{0x0000a080, 0x29292929},
+	{0x0000a084, 0x29292929},
+	{0x0000a088, 0x29292929},
+	{0x0000a08c, 0x29292929},
+	{0x0000a090, 0x22292929},
+	{0x0000a094, 0x1d1d2222},
+	{0x0000a098, 0x0c111117},
+	{0x0000a09c, 0x00030303},
+	{0x0000a0a0, 0x00000000},
+	{0x0000a0a4, 0x00000000},
+	{0x0000a0a8, 0x00000000},
+	{0x0000a0ac, 0x00000000},
+	{0x0000a0b0, 0x00000000},
+	{0x0000a0b4, 0x00000000},
+	{0x0000a0b8, 0x00000000},
+	{0x0000a0bc, 0x00000000},
+	{0x0000a0c0, 0x001f0000},
+	{0x0000a0c4, 0x01000101},
+	{0x0000a0c8, 0x011e011f},
+	{0x0000a0cc, 0x011c011d},
+	{0x0000a0d0, 0x02030204},
+	{0x0000a0d4, 0x02010202},
+	{0x0000a0d8, 0x021f0200},
+	{0x0000a0dc, 0x0302021e},
+	{0x0000a0e0, 0x03000301},
+	{0x0000a0e4, 0x031e031f},
+	{0x0000a0e8, 0x0402031d},
+	{0x0000a0ec, 0x04000401},
+	{0x0000a0f0, 0x041e041f},
+	{0x0000a0f4, 0x0502041d},
+	{0x0000a0f8, 0x05000501},
+	{0x0000a0fc, 0x051e051f},
+	{0x0000a100, 0x06010602},
+	{0x0000a104, 0x061f0600},
+	{0x0000a108, 0x061d061e},
+	{0x0000a10c, 0x07020703},
+	{0x0000a110, 0x07000701},
+	{0x0000a114, 0x00000000},
+	{0x0000a118, 0x00000000},
+	{0x0000a11c, 0x00000000},
+	{0x0000a120, 0x00000000},
+	{0x0000a124, 0x00000000},
+	{0x0000a128, 0x00000000},
+	{0x0000a12c, 0x00000000},
+	{0x0000a130, 0x00000000},
+	{0x0000a134, 0x00000000},
+	{0x0000a138, 0x00000000},
+	{0x0000a13c, 0x00000000},
+	{0x0000a140, 0x001f0000},
+	{0x0000a144, 0x01000101},
+	{0x0000a148, 0x011e011f},
+	{0x0000a14c, 0x011c011d},
+	{0x0000a150, 0x02030204},
+	{0x0000a154, 0x02010202},
+	{0x0000a158, 0x021f0200},
+	{0x0000a15c, 0x0302021e},
+	{0x0000a160, 0x03000301},
+	{0x0000a164, 0x031e031f},
+	{0x0000a168, 0x0402031d},
+	{0x0000a16c, 0x04000401},
+	{0x0000a170, 0x041e041f},
+	{0x0000a174, 0x0502041d},
+	{0x0000a178, 0x05000501},
+	{0x0000a17c, 0x051e051f},
+	{0x0000a180, 0x06010602},
+	{0x0000a184, 0x061f0600},
+	{0x0000a188, 0x061d061e},
+	{0x0000a18c, 0x07020703},
+	{0x0000a190, 0x07000701},
+	{0x0000a194, 0x00000000},
+	{0x0000a198, 0x00000000},
+	{0x0000a19c, 0x00000000},
+	{0x0000a1a0, 0x00000000},
+	{0x0000a1a4, 0x00000000},
+	{0x0000a1a8, 0x00000000},
+	{0x0000a1ac, 0x00000000},
+	{0x0000a1b0, 0x00000000},
+	{0x0000a1b4, 0x00000000},
+	{0x0000a1b8, 0x00000000},
+	{0x0000a1bc, 0x00000000},
+	{0x0000a1c0, 0x00000000},
+	{0x0000a1c4, 0x00000000},
+	{0x0000a1c8, 0x00000000},
+	{0x0000a1cc, 0x00000000},
+	{0x0000a1d0, 0x00000000},
+	{0x0000a1d4, 0x00000000},
+	{0x0000a1d8, 0x00000000},
+	{0x0000a1dc, 0x00000000},
+	{0x0000a1e0, 0x00000000},
+	{0x0000a1e4, 0x00000000},
+	{0x0000a1e8, 0x00000000},
+	{0x0000a1ec, 0x00000000},
+	{0x0000a1f0, 0x00000396},
+	{0x0000a1f4, 0x00000396},
+	{0x0000a1f8, 0x00000396},
+	{0x0000a1fc, 0x00000196},
+	{0x0000b000, 0x00010000},
+	{0x0000b004, 0x00030002},
+	{0x0000b008, 0x00050004},
+	{0x0000b00c, 0x00810080},
+	{0x0000b010, 0x00830082},
+	{0x0000b014, 0x01810180},
+	{0x0000b018, 0x01830182},
+	{0x0000b01c, 0x01850184},
+	{0x0000b020, 0x02810280},
+	{0x0000b024, 0x02830282},
+	{0x0000b028, 0x02850284},
+	{0x0000b02c, 0x02890288},
+	{0x0000b030, 0x028b028a},
+	{0x0000b034, 0x0388028c},
+	{0x0000b038, 0x038a0389},
+	{0x0000b03c, 0x038c038b},
+	{0x0000b040, 0x0390038d},
+	{0x0000b044, 0x03920391},
+	{0x0000b048, 0x03940393},
+	{0x0000b04c, 0x03960395},
+	{0x0000b050, 0x00000000},
+	{0x0000b054, 0x00000000},
+	{0x0000b058, 0x00000000},
+	{0x0000b05c, 0x00000000},
+	{0x0000b060, 0x00000000},
+	{0x0000b064, 0x00000000},
+	{0x0000b068, 0x00000000},
+	{0x0000b06c, 0x00000000},
+	{0x0000b070, 0x00000000},
+	{0x0000b074, 0x00000000},
+	{0x0000b078, 0x00000000},
+	{0x0000b07c, 0x00000000},
+	{0x0000b080, 0x2a2d2f32},
+	{0x0000b084, 0x21232328},
+	{0x0000b088, 0x19191c1e},
+	{0x0000b08c, 0x12141417},
+	{0x0000b090, 0x07070e0e},
+	{0x0000b094, 0x03030305},
+	{0x0000b098, 0x00000003},
+	{0x0000b09c, 0x00000000},
+	{0x0000b0a0, 0x00000000},
+	{0x0000b0a4, 0x00000000},
+	{0x0000b0a8, 0x00000000},
+	{0x0000b0ac, 0x00000000},
+	{0x0000b0b0, 0x00000000},
+	{0x0000b0b4, 0x00000000},
+	{0x0000b0b8, 0x00000000},
+	{0x0000b0bc, 0x00000000},
+	{0x0000b0c0, 0x003f0020},
+	{0x0000b0c4, 0x00400041},
+	{0x0000b0c8, 0x0140005f},
+	{0x0000b0cc, 0x0160015f},
+	{0x0000b0d0, 0x017e017f},
+	{0x0000b0d4, 0x02410242},
+	{0x0000b0d8, 0x025f0240},
+	{0x0000b0dc, 0x027f0260},
+	{0x0000b0e0, 0x0341027e},
+	{0x0000b0e4, 0x035f0340},
+	{0x0000b0e8, 0x037f0360},
+	{0x0000b0ec, 0x04400441},
+	{0x0000b0f0, 0x0460045f},
+	{0x0000b0f4, 0x0541047f},
+	{0x0000b0f8, 0x055f0540},
+	{0x0000b0fc, 0x057f0560},
+	{0x0000b100, 0x06400641},
+	{0x0000b104, 0x0660065f},
+	{0x0000b108, 0x067e067f},
+	{0x0000b10c, 0x07410742},
+	{0x0000b110, 0x075f0740},
+	{0x0000b114, 0x077f0760},
+	{0x0000b118, 0x07800781},
+	{0x0000b11c, 0x07a0079f},
+	{0x0000b120, 0x07c107bf},
+	{0x0000b124, 0x000007c0},
+	{0x0000b128, 0x00000000},
+	{0x0000b12c, 0x00000000},
+	{0x0000b130, 0x00000000},
+	{0x0000b134, 0x00000000},
+	{0x0000b138, 0x00000000},
+	{0x0000b13c, 0x00000000},
+	{0x0000b140, 0x003f0020},
+	{0x0000b144, 0x00400041},
+	{0x0000b148, 0x0140005f},
+	{0x0000b14c, 0x0160015f},
+	{0x0000b150, 0x017e017f},
+	{0x0000b154, 0x02410242},
+	{0x0000b158, 0x025f0240},
+	{0x0000b15c, 0x027f0260},
+	{0x0000b160, 0x0341027e},
+	{0x0000b164, 0x035f0340},
+	{0x0000b168, 0x037f0360},
+	{0x0000b16c, 0x04400441},
+	{0x0000b170, 0x0460045f},
+	{0x0000b174, 0x0541047f},
+	{0x0000b178, 0x055f0540},
+	{0x0000b17c, 0x057f0560},
+	{0x0000b180, 0x06400641},
+	{0x0000b184, 0x0660065f},
+	{0x0000b188, 0x067e067f},
+	{0x0000b18c, 0x07410742},
+	{0x0000b190, 0x075f0740},
+	{0x0000b194, 0x077f0760},
+	{0x0000b198, 0x07800781},
+	{0x0000b19c, 0x07a0079f},
+	{0x0000b1a0, 0x07c107bf},
+	{0x0000b1a4, 0x000007c0},
+	{0x0000b1a8, 0x00000000},
+	{0x0000b1ac, 0x00000000},
+	{0x0000b1b0, 0x00000000},
+	{0x0000b1b4, 0x00000000},
+	{0x0000b1b8, 0x00000000},
+	{0x0000b1bc, 0x00000000},
+	{0x0000b1c0, 0x00000000},
+	{0x0000b1c4, 0x00000000},
+	{0x0000b1c8, 0x00000000},
+	{0x0000b1cc, 0x00000000},
+	{0x0000b1d0, 0x00000000},
+	{0x0000b1d4, 0x00000000},
+	{0x0000b1d8, 0x00000000},
+	{0x0000b1dc, 0x00000000},
+	{0x0000b1e0, 0x00000000},
+	{0x0000b1e4, 0x00000000},
+	{0x0000b1e8, 0x00000000},
+	{0x0000b1ec, 0x00000000},
+	{0x0000b1f0, 0x00000396},
+	{0x0000b1f4, 0x00000396},
+	{0x0000b1f8, 0x00000396},
+	{0x0000b1fc, 0x00000196},
+};
+
+static const u32 ar9462_2p1_modes_low_ob_db_tx_gain[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x000098bc, 0x00000002, 0x00000002, 0x00000002, 0x00000002},
+	{0x0000a2dc, 0x0380c7fc, 0x0380c7fc, 0x03aaa352, 0x03aaa352},
+	{0x0000a2e0, 0x0000f800, 0x0000f800, 0x03ccc584, 0x03ccc584},
+	{0x0000a2e4, 0x03ff0000, 0x03ff0000, 0x03f0f800, 0x03f0f800},
+	{0x0000a2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
+	{0x0000a458, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a500, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a504, 0x06000003, 0x06000003, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0a000020, 0x0a000020, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x10000023, 0x10000023, 0x0b000200, 0x0b000200},
+	{0x0000a510, 0x16000220, 0x16000220, 0x0f000202, 0x0f000202},
+	{0x0000a514, 0x1c000223, 0x1c000223, 0x12000400, 0x12000400},
+	{0x0000a518, 0x21020220, 0x21020220, 0x16000402, 0x16000402},
+	{0x0000a51c, 0x27020223, 0x27020223, 0x19000404, 0x19000404},
+	{0x0000a520, 0x2b022220, 0x2b022220, 0x1c000603, 0x1c000603},
+	{0x0000a524, 0x2f022222, 0x2f022222, 0x21000a02, 0x21000a02},
+	{0x0000a528, 0x34022225, 0x34022225, 0x25000a04, 0x25000a04},
+	{0x0000a52c, 0x3a02222a, 0x3a02222a, 0x28000a20, 0x28000a20},
+	{0x0000a530, 0x3e02222c, 0x3e02222c, 0x2c000e20, 0x2c000e20},
+	{0x0000a534, 0x4202242a, 0x4202242a, 0x30000e22, 0x30000e22},
+	{0x0000a538, 0x4702244a, 0x4702244a, 0x34000e24, 0x34000e24},
+	{0x0000a53c, 0x4b02244c, 0x4b02244c, 0x38001640, 0x38001640},
+	{0x0000a540, 0x4e02246c, 0x4e02246c, 0x3c001660, 0x3c001660},
+	{0x0000a544, 0x5302266c, 0x5302266c, 0x3f001861, 0x3f001861},
+	{0x0000a548, 0x5702286c, 0x5702286c, 0x43001a81, 0x43001a81},
+	{0x0000a54c, 0x5c04286b, 0x5c04286b, 0x47001a83, 0x47001a83},
+	{0x0000a550, 0x61042a6c, 0x61042a6c, 0x4a001c84, 0x4a001c84},
+	{0x0000a554, 0x66062a6c, 0x66062a6c, 0x4e001ce3, 0x4e001ce3},
+	{0x0000a558, 0x6b062e6c, 0x6b062e6c, 0x52001ce5, 0x52001ce5},
+	{0x0000a55c, 0x7006308c, 0x7006308c, 0x56001ce9, 0x56001ce9},
+	{0x0000a560, 0x730a308a, 0x730a308a, 0x5a001ceb, 0x5a001ceb},
+	{0x0000a564, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a568, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a56c, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a570, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a574, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a578, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a57c, 0x770a308c, 0x770a308c, 0x5d001eec, 0x5d001eec},
+	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a610, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a614, 0x01404000, 0x01404000, 0x01404000, 0x01404000},
+	{0x0000a618, 0x01404501, 0x01404501, 0x01404501, 0x01404501},
+	{0x0000a61c, 0x02008802, 0x02008802, 0x02008501, 0x02008501},
+	{0x0000a620, 0x0300cc03, 0x0300cc03, 0x0280ca03, 0x0280ca03},
+	{0x0000a624, 0x0300cc03, 0x0300cc03, 0x03010c04, 0x03010c04},
+	{0x0000a628, 0x0300cc03, 0x0300cc03, 0x04014c04, 0x04014c04},
+	{0x0000a62c, 0x03810c03, 0x03810c03, 0x04015005, 0x04015005},
+	{0x0000a630, 0x03810e04, 0x03810e04, 0x04015005, 0x04015005},
+	{0x0000a634, 0x03810e04, 0x03810e04, 0x04015005, 0x04015005},
+	{0x0000a638, 0x03810e04, 0x03810e04, 0x04015005, 0x04015005},
+	{0x0000a63c, 0x03810e04, 0x03810e04, 0x04015005, 0x04015005},
+	{0x0000b2dc, 0x0380c7fc, 0x0380c7fc, 0x03aaa352, 0x03aaa352},
+	{0x0000b2e0, 0x0000f800, 0x0000f800, 0x03ccc584, 0x03ccc584},
+	{0x0000b2e4, 0x03ff0000, 0x03ff0000, 0x03f0f800, 0x03f0f800},
+	{0x0000b2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+	{0x00016044, 0x012482d4, 0x012482d4, 0x012482d4, 0x012482d4},
+	{0x00016048, 0x64992060, 0x64992060, 0x64992060, 0x64992060},
+	{0x00016054, 0x6db60000, 0x6db60000, 0x6db60000, 0x6db60000},
+	{0x00016444, 0x012482d4, 0x012482d4, 0x012482d4, 0x012482d4},
+	{0x00016448, 0x64992000, 0x64992000, 0x64992000, 0x64992000},
+	{0x00016454, 0x6db60000, 0x6db60000, 0x6db60000, 0x6db60000},
+};
+
+static const u32 ar9462_2p1_modes_high_ob_db_tx_gain[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x000098bc, 0x00000002, 0x00000002, 0x00000002, 0x00000002},
+	{0x0000a2dc, 0x01feee00, 0x01feee00, 0x03aaa352, 0x03aaa352},
+	{0x0000a2e0, 0x0000f000, 0x0000f000, 0x03ccc584, 0x03ccc584},
+	{0x0000a2e4, 0x01ff0000, 0x01ff0000, 0x03f0f800, 0x03f0f800},
+	{0x0000a2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+	{0x0000a410, 0x000050da, 0x000050da, 0x000050de, 0x000050de},
+	{0x0000a458, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
+	{0x0000a504, 0x06002223, 0x06002223, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0a022220, 0x0a022220, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x0f022223, 0x0f022223, 0x0b000200, 0x0b000200},
+	{0x0000a510, 0x14022620, 0x14022620, 0x0f000202, 0x0f000202},
+	{0x0000a514, 0x18022622, 0x18022622, 0x11000400, 0x11000400},
+	{0x0000a518, 0x1b022822, 0x1b022822, 0x15000402, 0x15000402},
+	{0x0000a51c, 0x20022842, 0x20022842, 0x19000404, 0x19000404},
+	{0x0000a520, 0x22022c41, 0x22022c41, 0x1b000603, 0x1b000603},
+	{0x0000a524, 0x28023042, 0x28023042, 0x1f000a02, 0x1f000a02},
+	{0x0000a528, 0x2c023044, 0x2c023044, 0x23000a04, 0x23000a04},
+	{0x0000a52c, 0x2f023644, 0x2f023644, 0x26000a20, 0x26000a20},
+	{0x0000a530, 0x34025643, 0x34025643, 0x2a000e20, 0x2a000e20},
+	{0x0000a534, 0x38025a44, 0x38025a44, 0x2e000e22, 0x2e000e22},
+	{0x0000a538, 0x3b025e45, 0x3b025e45, 0x31000e24, 0x31000e24},
+	{0x0000a53c, 0x41025e4a, 0x41025e4a, 0x34001640, 0x34001640},
+	{0x0000a540, 0x48025e6c, 0x48025e6c, 0x38001660, 0x38001660},
+	{0x0000a544, 0x4e025e8e, 0x4e025e8e, 0x3b001861, 0x3b001861},
+	{0x0000a548, 0x55025eb3, 0x55025eb3, 0x3e001a81, 0x3e001a81},
+	{0x0000a54c, 0x58025ef3, 0x58025ef3, 0x42001a83, 0x42001a83},
+	{0x0000a550, 0x5d025ef6, 0x5d025ef6, 0x44001a84, 0x44001a84},
+	{0x0000a554, 0x62025f56, 0x62025f56, 0x48001ce3, 0x48001ce3},
+	{0x0000a558, 0x66027f56, 0x66027f56, 0x4c001ce5, 0x4c001ce5},
+	{0x0000a55c, 0x6a029f56, 0x6a029f56, 0x50001ce9, 0x50001ce9},
+	{0x0000a560, 0x70049f56, 0x70049f56, 0x54001ceb, 0x54001ceb},
+	{0x0000a564, 0x751ffff6, 0x751ffff6, 0x56001eec, 0x56001eec},
+	{0x0000a568, 0x751ffff6, 0x751ffff6, 0x58001ef0, 0x58001ef0},
+	{0x0000a56c, 0x751ffff6, 0x751ffff6, 0x5a001ef4, 0x5a001ef4},
+	{0x0000a570, 0x751ffff6, 0x751ffff6, 0x5c001ff6, 0x5c001ff6},
+	{0x0000a574, 0x751ffff6, 0x751ffff6, 0x5c001ff6, 0x5c001ff6},
+	{0x0000a578, 0x751ffff6, 0x751ffff6, 0x5c001ff6, 0x5c001ff6},
+	{0x0000a57c, 0x751ffff6, 0x751ffff6, 0x5c001ff6, 0x5c001ff6},
+	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a610, 0x00804000, 0x00804000, 0x00000000, 0x00000000},
+	{0x0000a614, 0x00804201, 0x00804201, 0x01404000, 0x01404000},
+	{0x0000a618, 0x0280c802, 0x0280c802, 0x01404501, 0x01404501},
+	{0x0000a61c, 0x0280ca03, 0x0280ca03, 0x02008501, 0x02008501},
+	{0x0000a620, 0x04c15104, 0x04c15104, 0x0280ca03, 0x0280ca03},
+	{0x0000a624, 0x04c15305, 0x04c15305, 0x03010c04, 0x03010c04},
+	{0x0000a628, 0x04c15305, 0x04c15305, 0x04014c04, 0x04014c04},
+	{0x0000a62c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a630, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a634, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a638, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a63c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000b2dc, 0x01feee00, 0x01feee00, 0x03aaa352, 0x03aaa352},
+	{0x0000b2e0, 0x0000f000, 0x0000f000, 0x03ccc584, 0x03ccc584},
+	{0x0000b2e4, 0x01ff0000, 0x01ff0000, 0x03f0f800, 0x03f0f800},
+	{0x0000b2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+	{0x00016044, 0x056d82e4, 0x056d82e4, 0x056d82e4, 0x056d82e4},
+	{0x00016048, 0x8db49060, 0x8db49060, 0x8db49060, 0x8db49060},
+	{0x00016054, 0x6db60000, 0x6db60000, 0x6db60000, 0x6db60000},
+	{0x00016444, 0x056d82e4, 0x056d82e4, 0x056d82e4, 0x056d82e4},
+	{0x00016448, 0x8db49000, 0x8db49000, 0x8db49000, 0x8db49000},
+	{0x00016454, 0x6db60000, 0x6db60000, 0x6db60000, 0x6db60000},
+};
+
+static const u32 ar9462_2p1_modes_mix_ob_db_tx_gain[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x000098bc, 0x00000002, 0x00000002, 0x00000002, 0x00000002},
+	{0x0000a2dc, 0x01feee00, 0x01feee00, 0x03aaa352, 0x03aaa352},
+	{0x0000a2e0, 0x0000f000, 0x0000f000, 0x03ccc584, 0x03ccc584},
+	{0x0000a2e4, 0x01ff0000, 0x01ff0000, 0x03f0f800, 0x03f0f800},
+	{0x0000a2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+	{0x0000a410, 0x0000d0da, 0x0000d0da, 0x0000d0de, 0x0000d0de},
+	{0x0000a458, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
+	{0x0000a504, 0x06002223, 0x06002223, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0a022220, 0x0a022220, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x0f022223, 0x0f022223, 0x0b000200, 0x0b000200},
+	{0x0000a510, 0x14022620, 0x14022620, 0x0f000202, 0x0f000202},
+	{0x0000a514, 0x18022622, 0x18022622, 0x12000400, 0x12000400},
+	{0x0000a518, 0x1b022822, 0x1b022822, 0x16000402, 0x16000402},
+	{0x0000a51c, 0x20022842, 0x20022842, 0x19000404, 0x19000404},
+	{0x0000a520, 0x22022c41, 0x22022c41, 0x1c000603, 0x1c000603},
+	{0x0000a524, 0x28023042, 0x28023042, 0x21000a02, 0x21000a02},
+	{0x0000a528, 0x2c023044, 0x2c023044, 0x25000a04, 0x25000a04},
+	{0x0000a52c, 0x2f023644, 0x2f023644, 0x28000a20, 0x28000a20},
+	{0x0000a530, 0x34025643, 0x34025643, 0x2c000e20, 0x2c000e20},
+	{0x0000a534, 0x38025a44, 0x38025a44, 0x30000e22, 0x30000e22},
+	{0x0000a538, 0x3b025e45, 0x3b025e45, 0x34000e24, 0x34000e24},
+	{0x0000a53c, 0x41025e4a, 0x41025e4a, 0x38001640, 0x38001640},
+	{0x0000a540, 0x48025e6c, 0x48025e6c, 0x3c001660, 0x3c001660},
+	{0x0000a544, 0x4e025e8e, 0x4e025e8e, 0x3f001861, 0x3f001861},
+	{0x0000a548, 0x55025eb3, 0x55025eb3, 0x43001a81, 0x43001a81},
+	{0x0000a54c, 0x58025ef3, 0x58025ef3, 0x47001a83, 0x47001a83},
+	{0x0000a550, 0x5d025ef6, 0x5d025ef6, 0x4a001c84, 0x4a001c84},
+	{0x0000a554, 0x62025f56, 0x62025f56, 0x4e001ce3, 0x4e001ce3},
+	{0x0000a558, 0x66027f56, 0x66027f56, 0x52001ce5, 0x52001ce5},
+	{0x0000a55c, 0x6a029f56, 0x6a029f56, 0x56001ce9, 0x56001ce9},
+	{0x0000a560, 0x70049f56, 0x70049f56, 0x5a001ceb, 0x5a001ceb},
+	{0x0000a564, 0x751ffff6, 0x751ffff6, 0x5c001eec, 0x5c001eec},
+	{0x0000a568, 0x751ffff6, 0x751ffff6, 0x5e001ef0, 0x5e001ef0},
+	{0x0000a56c, 0x751ffff6, 0x751ffff6, 0x60001ef4, 0x60001ef4},
+	{0x0000a570, 0x751ffff6, 0x751ffff6, 0x62001ff6, 0x62001ff6},
+	{0x0000a574, 0x751ffff6, 0x751ffff6, 0x62001ff6, 0x62001ff6},
+	{0x0000a578, 0x751ffff6, 0x751ffff6, 0x62001ff6, 0x62001ff6},
+	{0x0000a57c, 0x751ffff6, 0x751ffff6, 0x62001ff6, 0x62001ff6},
+	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a610, 0x00804000, 0x00804000, 0x00000000, 0x00000000},
+	{0x0000a614, 0x00804201, 0x00804201, 0x01404000, 0x01404000},
+	{0x0000a618, 0x0280c802, 0x0280c802, 0x01404501, 0x01404501},
+	{0x0000a61c, 0x0280ca03, 0x0280ca03, 0x02008501, 0x02008501},
+	{0x0000a620, 0x04c15104, 0x04c15104, 0x0280ca03, 0x0280ca03},
+	{0x0000a624, 0x04c15305, 0x04c15305, 0x03010c04, 0x03010c04},
+	{0x0000a628, 0x04c15305, 0x04c15305, 0x04014c04, 0x04014c04},
+	{0x0000a62c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a630, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a634, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a638, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a63c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000b2dc, 0x01feee00, 0x01feee00, 0x03aaa352, 0x03aaa352},
+	{0x0000b2e0, 0x0000f000, 0x0000f000, 0x03ccc584, 0x03ccc584},
+	{0x0000b2e4, 0x01ff0000, 0x01ff0000, 0x03f0f800, 0x03f0f800},
+	{0x0000b2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+};
+
+static const u32 ar9462_2p1_modes_fast_clock[][3] = {
+	/* Addr      5G_HT20     5G_HT40   */
+	{0x00001030, 0x00000268, 0x000004d0},
+	{0x00001070, 0x0000018c, 0x00000318},
+	{0x000010b0, 0x00000fd0, 0x00001fa0},
+	{0x00008014, 0x044c044c, 0x08980898},
+	{0x0000801c, 0x148ec02b, 0x148ec057},
+	{0x00008318, 0x000044c0, 0x00008980},
+	{0x00009e00, 0x0372131c, 0x0372131c},
+	{0x0000a230, 0x0000400b, 0x00004016},
+	{0x0000a254, 0x00000898, 0x00001130},
+};
+
+static const u32 ar9462_2p1_baseband_core_txfir_coeff_japan_2484[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a398, 0x00000000},
+	{0x0000a39c, 0x6f7f0301},
+	{0x0000a3a0, 0xca9228ee},
+};
+
+#endif /* INITVALS_9462_2P1_H */
-- 
cgit v0.10.2


From d567e4eb80593b55690eda4be17ed6289630107e Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 24 Jun 2013 18:18:45 +0530
Subject: ath9k: Program initvals for AR9462 2.1

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index 671aaa7..3101c39 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -24,6 +24,7 @@
 #include "ar955x_1p0_initvals.h"
 #include "ar9580_1p0_initvals.h"
 #include "ar9462_2p0_initvals.h"
+#include "ar9462_2p1_initvals.h"
 #include "ar9565_1p0_initvals.h"
 
 /* General hardware code for the AR9003 hadware family */
@@ -197,6 +198,31 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 
 		INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
 				ar9485_1_1_pcie_phy_clkreq_disable_L1);
+	} else if (AR_SREV_9462_21(ah)) {
+		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
+			       ar9462_2p1_mac_core);
+		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_POST],
+			       ar9462_2p1_mac_postamble);
+		INIT_INI_ARRAY(&ah->iniBB[ATH_INI_CORE],
+			       ar9462_2p1_baseband_core);
+		INIT_INI_ARRAY(&ah->iniBB[ATH_INI_POST],
+			       ar9462_2p1_baseband_postamble);
+		INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_CORE],
+			       ar9462_2p1_radio_core);
+		INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_POST],
+			       ar9462_2p1_radio_postamble);
+		INIT_INI_ARRAY(&ah->ini_radio_post_sys2ant,
+			       ar9462_2p1_radio_postamble_sys2ant);
+		INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_PRE],
+			       ar9462_2p1_soc_preamble);
+		INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_POST],
+			       ar9462_2p1_soc_postamble);
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+			       ar9462_2p1_common_rx_gain);
+		INIT_INI_ARRAY(&ah->iniModesFastClock,
+			       ar9462_2p1_modes_fast_clock);
+		INIT_INI_ARRAY(&ah->iniCckfirJapan2484,
+			       ar9462_2p1_baseband_core_txfir_coeff_japan_2484);
 	} else if (AR_SREV_9462_20(ah)) {
 
 		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE], ar9462_2p0_mac_core);
@@ -407,6 +433,9 @@ static void ar9003_tx_gain_table_mode0(struct ath_hw *ah)
 	else if (AR_SREV_9580(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9580_1p0_lowest_ob_db_tx_gain_table);
+	else if (AR_SREV_9462_21(ah))
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+			ar9462_2p1_modes_low_ob_db_tx_gain);
 	else if (AR_SREV_9462_20(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9462_modes_low_ob_db_tx_gain_table_2p0);
@@ -438,6 +467,9 @@ static void ar9003_tx_gain_table_mode1(struct ath_hw *ah)
 	else if (AR_SREV_9550(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar955x_1p0_modes_no_xpa_tx_gain_table);
+	else if (AR_SREV_9462_21(ah))
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+			ar9462_2p1_modes_high_ob_db_tx_gain);
 	else if (AR_SREV_9462_20(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9462_modes_high_ob_db_tx_gain_table_2p0);
@@ -507,6 +539,9 @@ static void ar9003_tx_gain_table_mode4(struct ath_hw *ah)
 	else if (AR_SREV_9580(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9580_1p0_mixed_ob_db_tx_gain_table);
+	else if (AR_SREV_9462_21(ah))
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+		       ar9462_2p1_modes_mix_ob_db_tx_gain);
 	else
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9300Modes_mixed_ob_db_tx_gain_table_2p2);
@@ -584,6 +619,9 @@ static void ar9003_rx_gain_table_mode0(struct ath_hw *ah)
 	} else if (AR_SREV_9580(ah))
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 				ar9580_1p0_rx_gain_table);
+	else if (AR_SREV_9462_21(ah))
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+				ar9462_2p1_common_rx_gain);
 	else if (AR_SREV_9462_20(ah))
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 				ar9462_common_rx_gain_table_2p0);
@@ -606,6 +644,9 @@ static void ar9003_rx_gain_table_mode1(struct ath_hw *ah)
 	else if (AR_SREV_9485_11(ah))
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			ar9485Common_wo_xlna_rx_gain_1_1);
+	else if (AR_SREV_9462_21(ah))
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+			ar9462_2p1_common_wo_xlna_rx_gain);
 	else if (AR_SREV_9462_20(ah))
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			ar9462_common_wo_xlna_rx_gain_table_2p0);
@@ -627,7 +668,16 @@ static void ar9003_rx_gain_table_mode1(struct ath_hw *ah)
 
 static void ar9003_rx_gain_table_mode2(struct ath_hw *ah)
 {
-	if (AR_SREV_9462_20(ah)) {
+	if (AR_SREV_9462_21(ah)) {
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+			       ar9462_2p1_common_mixed_rx_gain);
+		INIT_INI_ARRAY(&ah->ini_modes_rxgain_bb_core,
+			       ar9462_2p1_baseband_core_mix_rxgain);
+		INIT_INI_ARRAY(&ah->ini_modes_rxgain_bb_postamble,
+			       ar9462_2p1_baseband_postamble_mix_rxgain);
+		INIT_INI_ARRAY(&ah->ini_modes_rxgain_5g_xlna,
+			       ar9462_2p1_baseband_postamble_5g_xlna);
+	} else if (AR_SREV_9462_20(ah)) {
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			       ar9462_common_mixed_rx_gain_table_2p0);
 		INIT_INI_ARRAY(&ah->ini_modes_rxgain_bb_core,
@@ -641,7 +691,12 @@ static void ar9003_rx_gain_table_mode2(struct ath_hw *ah)
 
 static void ar9003_rx_gain_table_mode3(struct ath_hw *ah)
 {
-	if (AR_SREV_9462_20(ah)) {
+	if (AR_SREV_9462_21(ah)) {
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+			       ar9462_2p1_common_5g_xlna_only_rx_gain);
+		INIT_INI_ARRAY(&ah->ini_modes_rxgain_5g_xlna,
+			       ar9462_2p1_baseband_postamble_5g_xlna);
+	} else if (AR_SREV_9462_20(ah)) {
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			       ar9462_2p0_5g_xlna_only_rxgain);
 		INIT_INI_ARRAY(&ah->ini_modes_rxgain_5g_xlna,
-- 
cgit v0.10.2


From 2b5e54e22f596bcd9ec0018f228a2606e016a108 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 24 Jun 2013 18:18:46 +0530
Subject: ath9k: Add support for AR9462 2.1

Various parts of the HW code are applicable for
both v2.0 and v2.1.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 1e86977..d105e43 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3606,7 +3606,7 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 	 *   7:4 R/W  SWITCH_TABLE_COM_SPDT_WLAN_IDLE
 	 * SWITCH_TABLE_COM_SPDT_WLAN_IDLE
 	 */
-	if (AR_SREV_9462_20(ah) || AR_SREV_9565(ah)) {
+	if (AR_SREV_9462_20_OR_LATER(ah) || AR_SREV_9565(ah)) {
 		value = ar9003_switch_com_spdt_get(ah, is2ghz);
 		REG_RMW_FIELD(ah, AR_PHY_GLB_CONTROL,
 				AR_SWITCH_TABLE_COM_SPDT_ALL, value);
@@ -4059,8 +4059,9 @@ static void ar9003_hw_thermo_cal_apply(struct ath_hw *ah)
 {
 	u32 data, ko, kg;
 
-	if (!AR_SREV_9462_20(ah))
+	if (!AR_SREV_9462_20_OR_LATER(ah))
 		return;
+
 	ar9300_otp_read_word(ah, 1, &data);
 	ko = data & 0xff;
 	kg = (data >> 8) & 0xff;
@@ -4752,7 +4753,7 @@ tempslope:
 			      AR_PHY_TPC_19_ALPHA_THERM, temp_slope);
 	}
 
-	if (AR_SREV_9462_20(ah))
+	if (AR_SREV_9462_20_OR_LATER(ah))
 		REG_RMW_FIELD(ah, AR_PHY_TPC_19_B1,
 			      AR_PHY_TPC_19_B1_ALPHA_THERM, temp_slope);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index df84d20..1f694ab 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -743,7 +743,7 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 		ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
 		ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
 		ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
-		if (i == ATH_INI_POST && AR_SREV_9462_20(ah))
+		if (i == ATH_INI_POST && AR_SREV_9462_20_OR_LATER(ah))
 			ar9003_hw_prog_ini(ah,
 					   &ah->ini_radio_post_sys2ant,
 					   modesIndex);
@@ -754,7 +754,7 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 	 */
 	REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
 
-	if (AR_SREV_9462_20(ah)) {
+	if (AR_SREV_9462_20_OR_LATER(ah)) {
 		/*
 		 * CUS217 mix LNA mode.
 		 */
@@ -1512,7 +1512,7 @@ static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
 	ar9003_hw_prog_ini(ah, &ah->iniBB[ATH_INI_POST], modesIndex);
 	ar9003_hw_prog_ini(ah, &ah->iniRadio[ATH_INI_POST], modesIndex);
 
-	if (AR_SREV_9462_20(ah))
+	if (AR_SREV_9462_20_OR_LATER(ah))
 		ar9003_hw_prog_ini(ah, &ah->ini_radio_post_sys2ant,
 				   modesIndex);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index 5013c73..d4d39f3 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -954,7 +954,7 @@
 #define AR_PHY_TPC_5_B1         (AR_SM1_BASE + 0x208)
 #define AR_PHY_TPC_6_B1         (AR_SM1_BASE + 0x20c)
 #define AR_PHY_TPC_11_B1        (AR_SM1_BASE + 0x220)
-#define AR_PHY_PDADC_TAB_1	(AR_SM1_BASE + (AR_SREV_AR9462(ah) ? \
+#define AR_PHY_PDADC_TAB_1	(AR_SM1_BASE + (AR_SREV_9462_20_OR_LATER(ah) ? \
 					0x280 : 0x240))
 #define AR_PHY_TPC_19_B1	(AR_SM1_BASE + 0x240)
 #define AR_PHY_TPC_19_B1_ALPHA_THERM		0xff
@@ -1048,7 +1048,7 @@
 #define AR_GLB_GPIO_CONTROL	(AR_GLB_BASE)
 #define AR_PHY_GLB_CONTROL	(AR_GLB_BASE + 0x44)
 #define AR_GLB_SCRATCH(_ah)	(AR_GLB_BASE + \
-					(AR_SREV_9462_20(_ah) ? 0x4c : 0x50))
+					(AR_SREV_9462_20_OR_LATER(_ah) ? 0x4c : 0x50))
 #define AR_GLB_STATUS		(AR_GLB_BASE + 0x48)
 
 /*
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 5324c33..4ca0cb0 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2599,7 +2599,7 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 		if (!(ah->ent_mode & AR_ENT_OTP_49GHZ_DISABLE))
 			pCap->hw_caps |= ATH9K_HW_CAP_MCI;
 
-		if (AR_SREV_9462_20(ah))
+		if (AR_SREV_9462_20_OR_LATER(ah))
 			pCap->hw_caps |= ATH9K_HW_CAP_RTT;
 	}
 
-- 
cgit v0.10.2


From b28405b0f25c91b52350fd558c219f08e5033eaf Mon Sep 17 00:00:00 2001
From: Alexandre Rames <arames@solarflare.com>
Date: Thu, 21 Mar 2013 16:41:43 +0000
Subject: sfc: Fix EEH with legacy interrupts.

PCI legacy interrupts are level-triggered, and we cannot mask them up
on an isolated device.  Instead, disable the IRQ at the controller
until we have recovered.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 46cc11d..787c9eb 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -23,6 +23,7 @@
 #include <linux/gfp.h>
 #include <linux/cpu_rmap.h>
 #include <linux/aer.h>
+#include <linux/interrupt.h>
 #include "net_driver.h"
 #include "efx.h"
 #include "nic.h"
@@ -1427,6 +1428,10 @@ static void efx_start_interrupts(struct efx_nic *efx, bool may_keep_eventq)
 
 	BUG_ON(efx->state == STATE_DISABLED);
 
+	if (efx->eeh_disabled_legacy_irq) {
+		enable_irq(efx->legacy_irq);
+		efx->eeh_disabled_legacy_irq = false;
+	}
 	if (efx->legacy_irq)
 		efx->legacy_irq_enabled = true;
 	efx_nic_enable_interrupts(efx);
@@ -2365,7 +2370,7 @@ out:
  * Returns 0 if the recovery mechanisms are unsuccessful.
  * Returns a non-zero value otherwise.
  */
-static int efx_try_recovery(struct efx_nic *efx)
+int efx_try_recovery(struct efx_nic *efx)
 {
 #ifdef CONFIG_EEH
 	/* A PCI error can occur and not be seen by EEH because nothing
diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h
index 8372da2..bdb30bb 100644
--- a/drivers/net/ethernet/sfc/efx.h
+++ b/drivers/net/ethernet/sfc/efx.h
@@ -124,6 +124,7 @@ extern const struct ethtool_ops efx_ethtool_ops;
 extern int efx_reset(struct efx_nic *efx, enum reset_type method);
 extern void efx_reset_down(struct efx_nic *efx, enum reset_type method);
 extern int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
+extern int efx_try_recovery(struct efx_nic *efx);
 
 /* Global */
 extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 9a2914c..2dec48b 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -788,6 +788,7 @@ struct efx_nic {
 	const struct efx_nic_type *type;
 	int legacy_irq;
 	bool legacy_irq_enabled;
+	bool eeh_disabled_legacy_irq;
 	struct workqueue_struct *workqueue;
 	char workqueue_name[16];
 	struct work_struct reset_work;
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index b0503cd..39432d3 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -1579,6 +1579,16 @@ static irqreturn_t efx_legacy_interrupt(int irq, void *dev_id)
 	efx_readd(efx, &reg, FR_BZ_INT_ISR0);
 	queues = EFX_EXTRACT_DWORD(reg, 0, 31);
 
+	/* Legacy interrupts are disabled too late by the EEH kernel
+	 * code. Disable them earlier.
+	 * If an EEH error occurred, the read will have returned all ones.
+	 */
+	if (EFX_DWORD_IS_ALL_ONES(reg) && efx_try_recovery(efx) &&
+	    !efx->eeh_disabled_legacy_irq) {
+		disable_irq_nosync(efx->legacy_irq);
+		efx->eeh_disabled_legacy_irq = true;
+	}
+
 	/* Handle non-event-queue sources */
 	if (queues & (1U << efx->irq_level)) {
 		syserr = EFX_OWORD_FIELD(*int_ker, FSF_AZ_NET_IVEC_FATAL_INT);
-- 
cgit v0.10.2


From c99dffc4170b23455f9ee9e56baf5f77a68ca4c8 Mon Sep 17 00:00:00 2001
From: Jon Cooper <jcooper@solarflare.com>
Date: Mon, 8 Apr 2013 12:49:48 +0100
Subject: sfc: Enable RX checksum offload for packets not handled by GRO

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index a7dfe36..b915e09 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -598,6 +598,8 @@ static void efx_rx_deliver(struct efx_channel *channel, u8 *eh,
 
 	/* Set the SKB flags */
 	skb_checksum_none_assert(skb);
+	if (likely(rx_buf->flags & EFX_RX_PKT_CSUMMED))
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
 
 	if (channel->type->receive_skb)
 		if (channel->type->receive_skb(channel, skb))
-- 
cgit v0.10.2


From d4ef5b6f374dfbef2c1e00cea73c3b76109f6246 Mon Sep 17 00:00:00 2001
From: Jon Cooper <jcooper@solarflare.com>
Date: Mon, 8 Apr 2013 12:55:58 +0100
Subject: sfc: Increase size of RX SKB header area

This allows the SKB to hold the headers without reallocation more often.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index b915e09..6efff3d 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -36,7 +36,7 @@
 #define EFX_RECYCLE_RING_SIZE_NOIOMMU (2 * EFX_RX_PREFERRED_BATCH)
 
 /* Size of buffer allocated for skb header area. */
-#define EFX_SKB_HEADERS  64u
+#define EFX_SKB_HEADERS  128u
 
 /* This is the percentage fill level below which new RX descriptors
  * will be added to the RX descriptor ring.
-- 
cgit v0.10.2


From 62ebac926b7a5cd7cb6dc02a8d6fa925fa206a23 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 8 Apr 2013 17:34:58 +0100
Subject: sfc: Report software timestamping capabilities

The kernel can generate software receive timestamps and we should
report those for all ports regardless of hardware capabilities.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 6e76817..1fc2145 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -1114,6 +1114,20 @@ static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
 	return 0;
 }
 
+int efx_ethtool_get_ts_info(struct net_device *net_dev,
+			    struct ethtool_ts_info *ts_info)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+
+	/* Software capabilities */
+	ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE |
+				    SOF_TIMESTAMPING_SOFTWARE);
+	ts_info->phc_index = -1;
+
+	efx_ptp_get_ts_info(efx, ts_info);
+	return 0;
+}
+
 static int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
 					 struct ethtool_eeprom *ee,
 					 u8 *data)
@@ -1176,7 +1190,7 @@ const struct ethtool_ops efx_ethtool_ops = {
 	.get_rxfh_indir_size	= efx_ethtool_get_rxfh_indir_size,
 	.get_rxfh_indir		= efx_ethtool_get_rxfh_indir,
 	.set_rxfh_indir		= efx_ethtool_set_rxfh_indir,
-	.get_ts_info		= efx_ptp_get_ts_info,
+	.get_ts_info		= efx_ethtool_get_ts_info,
 	.get_module_info	= efx_ethtool_get_module_info,
 	.get_module_eeprom	= efx_ethtool_get_module_eeprom,
 };
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index 1b00033..d63c299 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -254,8 +254,8 @@ extern int efx_sriov_set_vf_spoofchk(struct net_device *net_dev, int vf,
 struct ethtool_ts_info;
 extern void efx_ptp_probe(struct efx_nic *efx);
 extern int efx_ptp_ioctl(struct efx_nic *efx, struct ifreq *ifr, int cmd);
-extern int efx_ptp_get_ts_info(struct net_device *net_dev,
-			       struct ethtool_ts_info *ts_info);
+extern void efx_ptp_get_ts_info(struct efx_nic *efx,
+				struct ethtool_ts_info *ts_info);
 extern bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
 extern int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
 extern void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev);
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
index 9a95abf..b495394 100644
--- a/drivers/net/ethernet/sfc/ptp.c
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -1203,18 +1203,16 @@ static int efx_ptp_ts_init(struct efx_nic *efx, struct hwtstamp_config *init)
 	return 0;
 }
 
-int
-efx_ptp_get_ts_info(struct net_device *net_dev, struct ethtool_ts_info *ts_info)
+void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info)
 {
-	struct efx_nic *efx = netdev_priv(net_dev);
 	struct efx_ptp_data *ptp = efx->ptp_data;
 
 	if (!ptp)
-		return -EOPNOTSUPP;
+		return;
 
-	ts_info->so_timestamping = (SOF_TIMESTAMPING_TX_HARDWARE |
-				    SOF_TIMESTAMPING_RX_HARDWARE |
-				    SOF_TIMESTAMPING_RAW_HARDWARE);
+	ts_info->so_timestamping |= (SOF_TIMESTAMPING_TX_HARDWARE |
+				     SOF_TIMESTAMPING_RX_HARDWARE |
+				     SOF_TIMESTAMPING_RAW_HARDWARE);
 	ts_info->phc_index = ptp_clock_index(ptp->phc_clock);
 	ts_info->tx_types = 1 << HWTSTAMP_TX_OFF | 1 << HWTSTAMP_TX_ON;
 	ts_info->rx_filters = (1 << HWTSTAMP_FILTER_NONE |
@@ -1224,7 +1222,6 @@ efx_ptp_get_ts_info(struct net_device *net_dev, struct ethtool_ts_info *ts_info)
 			       1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT |
 			       1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC |
 			       1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
-	return 0;
 }
 
 int efx_ptp_ioctl(struct efx_nic *efx, struct ifreq *ifr, int cmd)
-- 
cgit v0.10.2


From 3ea84c5492e19daa478fad42f97b7dda9289e71c Mon Sep 17 00:00:00 2001
From: Andy Lutomirski <luto@amacapital.net>
Date: Fri, 10 May 2013 16:51:33 -0700
Subject: sfc: Enable accelerated RFS on vlans

As far as I know, the hardware doesn't support matching on both IP
fields and vlan tag, but it can at least match on the IP fields.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/filter.c b/drivers/net/ethernet/sfc/filter.c
index 2397f0e..b74a60a 100644
--- a/drivers/net/ethernet/sfc/filter.c
+++ b/drivers/net/ethernet/sfc/filter.c
@@ -1185,8 +1185,21 @@ int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
 
 	nhoff = skb_network_offset(skb);
 
-	if (skb->protocol != htons(ETH_P_IP))
+	if (skb->protocol == htons(ETH_P_8021Q)) {
+		EFX_BUG_ON_PARANOID(skb_headlen(skb) <
+				    nhoff + sizeof(struct vlan_hdr));
+		if (((const struct vlan_hdr *)skb->data + nhoff)->
+		    h_vlan_encapsulated_proto != htons(ETH_P_IP))
+			return -EPROTONOSUPPORT;
+
+		/* This is IP over 802.1q VLAN.  We can't filter on the
+		 * IP 5-tuple and the vlan together, so just strip the
+		 * vlan header and filter on the IP part.
+		 */
+		nhoff += sizeof(struct vlan_hdr);
+	} else if (skb->protocol != htons(ETH_P_IP)) {
 		return -EPROTONOSUPPORT;
+	}
 
 	/* RFS must validate the IP header length before calling us */
 	EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + sizeof(*ip));
-- 
cgit v0.10.2


From d07df8ec089cc72dded73dac5cf564ef9bba2fa1 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 16 May 2013 18:38:11 +0100
Subject: sfc: Define and set RX buffer flag for packets parsed as TCP

This will be useful for shortcutting some software packet parsing.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 2dec48b..f4c7e6b 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -243,6 +243,7 @@ struct efx_rx_buffer {
 #define EFX_RX_BUF_LAST_IN_PAGE	0x0001
 #define EFX_RX_PKT_CSUMMED	0x0002
 #define EFX_RX_PKT_DISCARD	0x0004
+#define EFX_RX_PKT_TCP		0x0040
 
 /**
  * struct efx_rx_page_state - Page-based rx buffer state
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index 39432d3..f2b864c 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -1080,12 +1080,21 @@ efx_handle_rx_event(struct efx_channel *channel, const efx_qword_t *event)
 	rx_ev_hdr_type = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_HDR_TYPE);
 
 	if (likely(rx_ev_pkt_ok)) {
-		/* If packet is marked as OK and packet type is TCP/IP or
-		 * UDP/IP, then we can rely on the hardware checksum.
+		/* If packet is marked as OK then we can rely on the
+		 * hardware checksum and classification.
 		 */
-		flags = (rx_ev_hdr_type == FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_TCP ||
-			 rx_ev_hdr_type == FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_UDP) ?
-			EFX_RX_PKT_CSUMMED : 0;
+		flags = 0;
+		switch (rx_ev_hdr_type) {
+		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_TCP:
+			flags |= EFX_RX_PKT_TCP;
+			/* fall through */
+		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_UDP:
+			flags |= EFX_RX_PKT_CSUMMED;
+			/* fall through */
+		case FSE_CZ_RX_EV_HDR_TYPE_IPV4V6_OTHER:
+		case FSE_AZ_RX_EV_HDR_TYPE_OTHER:
+			break;
+		}
 	} else {
 		flags = efx_handle_rx_not_ok(rx_queue, event);
 	}
-- 
cgit v0.10.2


From e79255de8581fac7c77dba443d5e79bbc6e72a1f Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 16 May 2013 18:38:13 +0100
Subject: sfc: Do not pass non-TCP packets into GRO code

GRO can handle non-TCP packets and pass them up without coalescing,
but it has to do some extra work to parse the packet which we can
bypass using the hardware parse result.  (This condition yields a
false negative for TCP/IPv6 packets received by Falcon, but its
performance is already poor in that case due to lack of checksum
offload.)

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 6efff3d..5c45118 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -629,7 +629,7 @@ void __efx_rx_packet(struct efx_channel *channel)
 	if (unlikely(!(efx->net_dev->features & NETIF_F_RXCSUM)))
 		rx_buf->flags &= ~EFX_RX_PKT_CSUMMED;
 
-	if (!channel->type->receive_skb)
+	if ((rx_buf->flags & EFX_RX_PKT_TCP) && !channel->type->receive_skb)
 		efx_rx_packet_gro(channel, rx_buf, channel->rx_pkt_n_frags, eh);
 	else
 		efx_rx_deliver(channel, eh, rx_buf, channel->rx_pkt_n_frags);
-- 
cgit v0.10.2


From 1899c111a535e43046b14ae13639747d9d2544d6 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Wed, 22 May 2013 18:03:35 +0100
Subject: sfc: Fix IRQ cleanup in case of a probe failure

The lifetime of an irq_cpu_rmap is odd: we have to allocate it before
installing IRQ handlers and free it before removing the IRQ handlers.
As a result of this asymmetry, it was omitted from some failure paths.

On another failure path, we could try to remove IRQ handlers we
had not yet installed.

Move the irq_cpu_rmap allocation and freeing alongside IRQ handler
installation and removal, in efx_nic_{init,fini}_interrupts().
Count the number of IRQ handlers successfully installed and only
remove those on the failure path.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 787c9eb..e7284a2 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -21,7 +21,6 @@
 #include <linux/ethtool.h>
 #include <linux/topology.h>
 #include <linux/gfp.h>
-#include <linux/cpu_rmap.h>
 #include <linux/aer.h>
 #include <linux/interrupt.h>
 #include "net_driver.h"
@@ -1284,29 +1283,6 @@ static unsigned int efx_wanted_parallelism(struct efx_nic *efx)
 	return count;
 }
 
-static int
-efx_init_rx_cpu_rmap(struct efx_nic *efx, struct msix_entry *xentries)
-{
-#ifdef CONFIG_RFS_ACCEL
-	unsigned int i;
-	int rc;
-
-	efx->net_dev->rx_cpu_rmap = alloc_irq_cpu_rmap(efx->n_rx_channels);
-	if (!efx->net_dev->rx_cpu_rmap)
-		return -ENOMEM;
-	for (i = 0; i < efx->n_rx_channels; i++) {
-		rc = irq_cpu_rmap_add(efx->net_dev->rx_cpu_rmap,
-				      xentries[i].vector);
-		if (rc) {
-			free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap);
-			efx->net_dev->rx_cpu_rmap = NULL;
-			return rc;
-		}
-	}
-#endif
-	return 0;
-}
-
 /* Probe the number and type of interrupts we are able to obtain, and
  * the resulting numbers of channels and RX queues.
  */
@@ -1360,11 +1336,6 @@ static int efx_probe_interrupts(struct efx_nic *efx)
 				efx->n_tx_channels = n_channels;
 				efx->n_rx_channels = n_channels;
 			}
-			rc = efx_init_rx_cpu_rmap(efx, xentries);
-			if (rc) {
-				pci_disable_msix(efx->pci_dev);
-				return rc;
-			}
 			for (i = 0; i < efx->n_channels; i++)
 				efx_get_channel(efx, i)->irq =
 					xentries[i].vector;
@@ -2608,10 +2579,6 @@ static void efx_pci_remove_main(struct efx_nic *efx)
 	BUG_ON(efx->state == STATE_READY);
 	cancel_work_sync(&efx->reset_work);
 
-#ifdef CONFIG_RFS_ACCEL
-	free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap);
-	efx->net_dev->rx_cpu_rmap = NULL;
-#endif
 	efx_stop_interrupts(efx, false);
 	efx_nic_fini_interrupt(efx);
 	efx_fini_port(efx);
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index f2b864c..56ed3bc 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -14,6 +14,7 @@
 #include <linux/pci.h>
 #include <linux/module.h>
 #include <linux/seq_file.h>
+#include <linux/cpu_rmap.h>
 #include "net_driver.h"
 #include "bitfield.h"
 #include "efx.h"
@@ -1706,6 +1707,7 @@ void efx_nic_push_rx_indir_table(struct efx_nic *efx)
 int efx_nic_init_interrupt(struct efx_nic *efx)
 {
 	struct efx_channel *channel;
+	unsigned int n_irqs;
 	int rc;
 
 	if (!EFX_INT_MODE_USE_MSI(efx)) {
@@ -1726,7 +1728,19 @@ int efx_nic_init_interrupt(struct efx_nic *efx)
 		return 0;
 	}
 
+#ifdef CONFIG_RFS_ACCEL
+	if (efx->interrupt_mode == EFX_INT_MODE_MSIX) {
+		efx->net_dev->rx_cpu_rmap =
+			alloc_irq_cpu_rmap(efx->n_rx_channels);
+		if (!efx->net_dev->rx_cpu_rmap) {
+			rc = -ENOMEM;
+			goto fail1;
+		}
+	}
+#endif
+
 	/* Hook MSI or MSI-X interrupt */
+	n_irqs = 0;
 	efx_for_each_channel(channel, efx) {
 		rc = request_irq(channel->irq, efx_msi_interrupt,
 				 IRQF_PROBE_SHARED, /* Not shared */
@@ -1737,13 +1751,31 @@ int efx_nic_init_interrupt(struct efx_nic *efx)
 				  "failed to hook IRQ %d\n", channel->irq);
 			goto fail2;
 		}
+		++n_irqs;
+
+#ifdef CONFIG_RFS_ACCEL
+		if (efx->interrupt_mode == EFX_INT_MODE_MSIX &&
+		    channel->channel < efx->n_rx_channels) {
+			rc = irq_cpu_rmap_add(efx->net_dev->rx_cpu_rmap,
+					      channel->irq);
+			if (rc)
+				goto fail2;
+		}
+#endif
 	}
 
 	return 0;
 
  fail2:
-	efx_for_each_channel(channel, efx)
+#ifdef CONFIG_RFS_ACCEL
+	free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap);
+	efx->net_dev->rx_cpu_rmap = NULL;
+#endif
+	efx_for_each_channel(channel, efx) {
+		if (n_irqs-- == 0)
+			break;
 		free_irq(channel->irq, &efx->channel[channel->channel]);
+	}
  fail1:
 	return rc;
 }
@@ -1753,11 +1785,14 @@ void efx_nic_fini_interrupt(struct efx_nic *efx)
 	struct efx_channel *channel;
 	efx_oword_t reg;
 
+#ifdef CONFIG_RFS_ACCEL
+	free_irq_cpu_rmap(efx->net_dev->rx_cpu_rmap);
+	efx->net_dev->rx_cpu_rmap = NULL;
+#endif
+
 	/* Disable MSI/MSI-X interrupts */
-	efx_for_each_channel(channel, efx) {
-		if (channel->irq)
-			free_irq(channel->irq, &efx->channel[channel->channel]);
-	}
+	efx_for_each_channel(channel, efx)
+		free_irq(channel->irq, &efx->channel[channel->channel]);
 
 	/* ACK legacy interrupt */
 	if (efx_nic_rev(efx) >= EFX_REV_FALCON_B0)
-- 
cgit v0.10.2


From 636d73da27e83ce4882f8823f79063bb37980961 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Wed, 12 Jun 2013 18:09:08 +0100
Subject: sfc: Improve test for IOMMU in use

The device::iommu_group field may be set even if no IOMMU is in use.
iommu_present() is still a better indicator, although it doesn't tell
us whether *our* device is affected.

Reported-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 5c45118..65646cd 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -677,7 +677,7 @@ static void efx_init_rx_recycle_ring(struct efx_nic *efx,
 #ifdef CONFIG_PPC64
 	bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_IOMMU;
 #else
-	if (efx->pci_dev->dev.iommu_group)
+	if (iommu_present(&pci_bus_type))
 		bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_IOMMU;
 	else
 		bufs_in_recycle_ring = EFX_RECYCLE_RING_SIZE_NOIOMMU;
-- 
cgit v0.10.2


From d3c5f47ee2d16497fafaf2f26b0ffeb5c3d4e721 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 24 Jun 2013 12:43:40 -0700
Subject: net: Restore unintentional reverts.

This restores commits:

c573972c111eb4c6b3f3250ad71e7c75cc799833
1a5904342c7380ceddd61c0b37544d752d0b1433
da2e2c214953f37c2a6be20226537ca5a329724c

which initially accidently went into 'net', were
reverted there, and then properly placed into 'net-next'.
But the next net --> net-next merge accidently wiped them
out again.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/apple/bmac.c b/drivers/net/ethernet/apple/bmac.c
index 714dcfe..a597b76 100644
--- a/drivers/net/ethernet/apple/bmac.c
+++ b/drivers/net/ethernet/apple/bmac.c
@@ -1016,7 +1016,6 @@ static void bmac_set_multicast(struct net_device *dev)
 static void bmac_set_multicast(struct net_device *dev)
 {
 	struct netdev_hw_addr *ha;
-	int i;
 	unsigned short rx_cfg;
 	u32 crc;
 
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 64646eb..270e65f 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -483,7 +483,6 @@ static void korina_multicast_list(struct net_device *dev)
 	unsigned long flags;
 	struct netdev_hw_addr *ha;
 	u32 recognise = ETH_ARC_AB;	/* always accept broadcasts */
-	int i;
 
 	/* Set promiscuous mode */
 	if (dev->flags & IFF_PROMISC)
diff --git a/drivers/net/ethernet/sun/sunbmac.c b/drivers/net/ethernet/sun/sunbmac.c
index 09b4f8c..0d43fa9 100644
--- a/drivers/net/ethernet/sun/sunbmac.c
+++ b/drivers/net/ethernet/sun/sunbmac.c
@@ -995,7 +995,6 @@ static void bigmac_set_multicast(struct net_device *dev)
 	struct bigmac *bp = netdev_priv(dev);
 	void __iomem *bregs = bp->bregs;
 	struct netdev_hw_addr *ha;
-	int i;
 	u32 tmp, crc;
 
 	/* Disable the receiver.  The bit self-clears when
-- 
cgit v0.10.2


From 77e2af0312b12dccd5043a7cc9cd49ab6a212996 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 21 Jun 2013 19:38:06 +0200
Subject: net: if_arp: add ARPHRD_NETLINK type

This small patch adds the definition of ARPHRD_NETLINK which can for
example be used by netlink monitoring devices as device type. So that
sockaddr_ll can pick it up and based on that choose the correct packet
dissector.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/if_arp.h b/include/uapi/linux/if_arp.h
index 82c7d1b..d7fea34 100644
--- a/include/uapi/linux/if_arp.h
+++ b/include/uapi/linux/if_arp.h
@@ -93,6 +93,7 @@
 #define ARPHRD_PHONET_PIPE 821		/* PhoNet pipe header		*/
 #define ARPHRD_CAIF	822		/* CAIF media type		*/
 #define ARPHRD_IP6GRE	823		/* GRE over IPv6		*/
+#define ARPHRD_NETLINK	824		/* Netlink header		*/
 
 #define ARPHRD_VOID	  0xFFFF	/* Void type, nothing is known */
 #define ARPHRD_NONE	  0xFFFE	/* zero header length */
-- 
cgit v0.10.2


From bcbde0d449eda7afa8f63280b165c8300dbd00e2 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 21 Jun 2013 19:38:07 +0200
Subject: net: netlink: virtual tap device management

Similarly to the networking receive path with ptype_all taps, we add
the possibility to register netdevices that are for ARPHRD_NETLINK to
the netlink subsystem, so that those can be used for netlink analyzers
resp. debuggers. We do not offer a direct callback function as out-of-tree
modules could do crap with it. Instead, a netdevice must be registered
properly and only receives a clone, managed by the netlink layer. Symbols
are exported as GPL-only.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index f78b430..86fde81a 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -145,4 +145,14 @@ static inline int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
 	return __netlink_dump_start(ssk, skb, nlh, control);
 }
 
+struct netlink_tap {
+	struct net_device *dev;
+	struct module *module;
+	struct list_head list;
+};
+
+extern int netlink_add_tap(struct netlink_tap *nt);
+extern int __netlink_remove_tap(struct netlink_tap *nt);
+extern int netlink_remove_tap(struct netlink_tap *nt);
+
 #endif	/* __LINUX_NETLINK_H */
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 275d901..6967fbc 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -57,6 +57,7 @@
 #include <linux/audit.h>
 #include <linux/mutex.h>
 #include <linux/vmalloc.h>
+#include <linux/if_arp.h>
 #include <asm/cacheflush.h>
 
 #include <net/net_namespace.h>
@@ -101,6 +102,9 @@ static atomic_t nl_table_users = ATOMIC_INIT(0);
 
 static ATOMIC_NOTIFIER_HEAD(netlink_chain);
 
+static DEFINE_SPINLOCK(netlink_tap_lock);
+static struct list_head netlink_tap_all __read_mostly;
+
 static inline u32 netlink_group_mask(u32 group)
 {
 	return group ? 1 << (group - 1) : 0;
@@ -111,6 +115,100 @@ static inline struct hlist_head *nl_portid_hashfn(struct nl_portid_hash *hash, u
 	return &hash->table[jhash_1word(portid, hash->rnd) & hash->mask];
 }
 
+int netlink_add_tap(struct netlink_tap *nt)
+{
+	if (unlikely(nt->dev->type != ARPHRD_NETLINK))
+		return -EINVAL;
+
+	spin_lock(&netlink_tap_lock);
+	list_add_rcu(&nt->list, &netlink_tap_all);
+	spin_unlock(&netlink_tap_lock);
+
+	if (nt->module)
+		__module_get(nt->module);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(netlink_add_tap);
+
+int __netlink_remove_tap(struct netlink_tap *nt)
+{
+	bool found = false;
+	struct netlink_tap *tmp;
+
+	spin_lock(&netlink_tap_lock);
+
+	list_for_each_entry(tmp, &netlink_tap_all, list) {
+		if (nt == tmp) {
+			list_del_rcu(&nt->list);
+			found = true;
+			goto out;
+		}
+	}
+
+	pr_warn("__netlink_remove_tap: %p not found\n", nt);
+out:
+	spin_unlock(&netlink_tap_lock);
+
+	if (found && nt->module)
+		module_put(nt->module);
+
+	return found ? 0 : -ENODEV;
+}
+EXPORT_SYMBOL_GPL(__netlink_remove_tap);
+
+int netlink_remove_tap(struct netlink_tap *nt)
+{
+	int ret;
+
+	ret = __netlink_remove_tap(nt);
+	synchronize_net();
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(netlink_remove_tap);
+
+static int __netlink_deliver_tap_skb(struct sk_buff *skb,
+				     struct net_device *dev)
+{
+	struct sk_buff *nskb;
+	int ret = -ENOMEM;
+
+	dev_hold(dev);
+	nskb = skb_clone(skb, GFP_ATOMIC);
+	if (nskb) {
+		nskb->dev = dev;
+		ret = dev_queue_xmit(nskb);
+		if (unlikely(ret > 0))
+			ret = net_xmit_errno(ret);
+	}
+
+	dev_put(dev);
+	return ret;
+}
+
+static void __netlink_deliver_tap(struct sk_buff *skb)
+{
+	int ret;
+	struct netlink_tap *tmp;
+
+	list_for_each_entry_rcu(tmp, &netlink_tap_all, list) {
+		ret = __netlink_deliver_tap_skb(skb, tmp->dev);
+		if (unlikely(ret))
+			break;
+	}
+}
+
+static void netlink_deliver_tap(struct sk_buff *skb)
+{
+	rcu_read_lock();
+
+	if (unlikely(!list_empty(&netlink_tap_all)))
+		__netlink_deliver_tap(skb);
+
+	rcu_read_unlock();
+}
+
 static void netlink_overrun(struct sock *sk)
 {
 	struct netlink_sock *nlk = nlk_sk(sk);
@@ -1518,6 +1616,8 @@ static int __netlink_sendskb(struct sock *sk, struct sk_buff *skb)
 {
 	int len = skb->len;
 
+	netlink_deliver_tap(skb);
+
 #ifdef CONFIG_NETLINK_MMAP
 	if (netlink_skb_is_mmaped(skb))
 		netlink_queue_mmaped_skb(sk, skb);
@@ -1578,6 +1678,11 @@ static int netlink_unicast_kernel(struct sock *sk, struct sk_buff *skb,
 
 	ret = -ECONNREFUSED;
 	if (nlk->netlink_rcv != NULL) {
+		/* We could do a netlink_deliver_tap(skb) here as well
+		 * but since this is intended for the kernel only, we
+		 * should rather let it stay under the hood.
+		 */
+
 		ret = skb->len;
 		netlink_skb_set_owner_r(skb, sk);
 		NETLINK_CB(skb).sk = ssk;
@@ -2975,6 +3080,8 @@ static int __init netlink_proto_init(void)
 		nl_table[i].compare = netlink_compare;
 	}
 
+	INIT_LIST_HEAD(&netlink_tap_all);
+
 	netlink_add_usersock_entry();
 
 	sock_register(&netlink_family_ops);
-- 
cgit v0.10.2


From e4fc408e0e99fd2e009c8b3702d9637f5554fd5c Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 21 Jun 2013 19:38:08 +0200
Subject: packet: nlmon: virtual netlink monitoring device for packet sockets

Currently, there is no good possibility to debug netlink traffic that
is being exchanged between kernel and user space. Therefore, this patch
implements a netlink virtual device, so that netlink messages will be
made visible to PF_PACKET sockets. Once there was an approach with a
similar idea [1], but it got forgotten somehow.

I think it makes most sense to accept the "overhead" of an extra netlink
net device over implementing the same functionality from PF_PACKET
sockets once again into netlink sockets. We have BPF filters that can
already be easily applied which even have netlink extensions, we have
RX_RING zero-copy between kernel- and user space that can be reused,
and much more features. So instead of re-implementing all of this, we
simply pass the skb to a given PF_PACKET socket for further analysis.

Another nice benefit that comes from that is that no code needs to be
changed in user space packet analyzers (maybe adding a dissector, but
not more), thus out of the box, we can already capture pcap files of
netlink traffic to debug/troubleshoot netlink problems.

Also thanks goes to Thomas Graf, Flavio Leitner, Jesper Dangaard Brouer.

 [1] http://marc.info/?l=linux-netdev&m=113813401516110

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 00aba08..b45b240 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -240,6 +240,16 @@ config VIRTIO_NET
 	  This is the virtual network driver for virtio.  It can be used with
 	  lguest or QEMU based VMMs (like KVM or Xen).  Say Y or M.
 
+config NLMON
+	tristate "Virtual netlink monitoring device"
+	---help---
+	  This option enables a monitoring net device for netlink skbs. The
+	  purpose of this is to analyze netlink messages with packet sockets.
+	  Thus applications like tcpdump will be able to see local netlink
+	  messages if they tap into the netlink device, record pcaps for further
+	  diagnostics, etc. This is mostly intended for developers or support
+	  to debug netlink issues. If unsure, say N.
+
 endif # NET_CORE
 
 config SUNGEM_PHY
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index ef3d090..3fef8a8 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_TUN) += tun.o
 obj-$(CONFIG_VETH) += veth.o
 obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
 obj-$(CONFIG_VXLAN) += vxlan.o
+obj-$(CONFIG_NLMON) += nlmon.o
 
 #
 # Networking Drivers
diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
new file mode 100644
index 0000000..dc364be
--- /dev/null
+++ b/drivers/net/nlmon.c
@@ -0,0 +1,170 @@
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/netlink.h>
+#include <net/net_namespace.h>
+#include <linux/if_arp.h>
+
+struct pcpu_lstats {
+	u64 packets;
+	u64 bytes;
+	struct u64_stats_sync syncp;
+};
+
+static netdev_tx_t nlmon_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	int len = skb->len;
+	struct pcpu_lstats *stats = this_cpu_ptr(dev->lstats);
+
+	u64_stats_update_begin(&stats->syncp);
+	stats->bytes += len;
+	stats->packets++;
+	u64_stats_update_end(&stats->syncp);
+
+	dev_kfree_skb(skb);
+
+	return NETDEV_TX_OK;
+}
+
+static int nlmon_is_valid_mtu(int new_mtu)
+{
+	return new_mtu >= sizeof(struct nlmsghdr) && new_mtu <= INT_MAX;
+}
+
+static int nlmon_change_mtu(struct net_device *dev, int new_mtu)
+{
+	if (!nlmon_is_valid_mtu(new_mtu))
+		return -EINVAL;
+
+	dev->mtu = new_mtu;
+	return 0;
+}
+
+static int nlmon_dev_init(struct net_device *dev)
+{
+	dev->lstats = alloc_percpu(struct pcpu_lstats);
+
+	return dev->lstats == NULL ? -ENOMEM : 0;
+}
+
+static void nlmon_dev_uninit(struct net_device *dev)
+{
+	free_percpu(dev->lstats);
+}
+
+static struct netlink_tap nlmon_tap;
+
+static int nlmon_open(struct net_device *dev)
+{
+	return netlink_add_tap(&nlmon_tap);
+}
+
+static int nlmon_close(struct net_device *dev)
+{
+	return netlink_remove_tap(&nlmon_tap);
+}
+
+static struct rtnl_link_stats64 *
+nlmon_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
+{
+	int i;
+	u64 bytes = 0, packets = 0;
+
+	for_each_possible_cpu(i) {
+		const struct pcpu_lstats *nl_stats;
+		u64 tbytes, tpackets;
+		unsigned int start;
+
+		nl_stats = per_cpu_ptr(dev->lstats, i);
+
+		do {
+			start = u64_stats_fetch_begin_bh(&nl_stats->syncp);
+			tbytes = nl_stats->bytes;
+			tpackets = nl_stats->packets;
+		} while (u64_stats_fetch_retry_bh(&nl_stats->syncp, start));
+
+		packets += tpackets;
+		bytes += tbytes;
+	}
+
+	stats->rx_packets = packets;
+	stats->tx_packets = 0;
+
+	stats->rx_bytes = bytes;
+	stats->tx_bytes = 0;
+
+	return stats;
+}
+
+static u32 always_on(struct net_device *dev)
+{
+	return 1;
+}
+
+static const struct ethtool_ops nlmon_ethtool_ops = {
+	.get_link = always_on,
+};
+
+static const struct net_device_ops nlmon_ops = {
+	.ndo_init = nlmon_dev_init,
+	.ndo_uninit = nlmon_dev_uninit,
+	.ndo_open = nlmon_open,
+	.ndo_stop = nlmon_close,
+	.ndo_start_xmit = nlmon_xmit,
+	.ndo_get_stats64 = nlmon_get_stats64,
+	.ndo_change_mtu = nlmon_change_mtu,
+};
+
+static struct netlink_tap nlmon_tap __read_mostly = {
+	.module = THIS_MODULE,
+};
+
+static void nlmon_setup(struct net_device *dev)
+{
+	dev->type = ARPHRD_NETLINK;
+	dev->tx_queue_len = 0;
+
+	dev->netdev_ops	= &nlmon_ops;
+	dev->ethtool_ops = &nlmon_ethtool_ops;
+	dev->destructor	= free_netdev;
+
+	dev->features = NETIF_F_FRAGLIST | NETIF_F_HIGHDMA;
+	dev->flags = IFF_NOARP;
+
+	/* That's rather a softlimit here, which, of course,
+	 * can be altered. Not a real MTU, but what is to be
+	 * expected in most cases.
+	 */
+	dev->mtu = NLMSG_GOODSIZE;
+}
+
+static __init int nlmon_register(void)
+{
+	int err;
+	struct net_device *nldev;
+
+	nldev = nlmon_tap.dev = alloc_netdev(0, "netlink", nlmon_setup);
+	if (unlikely(nldev == NULL))
+		return -ENOMEM;
+
+	err = register_netdev(nldev);
+	if (unlikely(err))
+		free_netdev(nldev);
+
+	return err;
+}
+
+static __exit void nlmon_unregister(void)
+{
+	struct net_device *nldev = nlmon_tap.dev;
+
+	unregister_netdev(nldev);
+}
+
+module_init(nlmon_register);
+module_exit(nlmon_unregister);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Daniel Borkmann <dborkman@redhat.com>");
+MODULE_AUTHOR("Mathieu Geli <geli@enseirb.fr>");
+MODULE_DESCRIPTION("Netlink monitoring device");
-- 
cgit v0.10.2


From 7ae8639c9d6d5aba7990b4fad3506ff7b4667a45 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 25 Jun 2013 01:21:06 -0700
Subject: tcp: remove invalid __rcu annotation

struct tcp_fastopen_context has a field named tfm, which is a pointer
to a crypto_cipher structure.

It currently has a __rcu annotation, which is not needed at all.

tcp_fastopen_ctx is the pointer fetched by rcu_dereference(), but once
we have a pointer to current tcp_fastopen_context, we do not use/need
rcu_dereference() to access tfm.

This fixes a lot of sparse errors like the following :

net/ipv4/tcp_fastopen.c:21:31: warning: incorrect type in argument 1 (different address spaces)
net/ipv4/tcp_fastopen.c:21:31:    expected struct crypto_cipher *tfm
net/ipv4/tcp_fastopen.c:21:31:    got struct crypto_cipher [noderef] <asn:4>*tfm

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 6fa8083..d198005 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1319,9 +1319,9 @@ void tcp_fastopen_cookie_gen(__be32 addr, struct tcp_fastopen_cookie *foc);
 
 /* Fastopen key context */
 struct tcp_fastopen_context {
-	struct crypto_cipher __rcu	*tfm;
-	__u8				key[TCP_FASTOPEN_KEY_LENGTH];
-	struct rcu_head			rcu;
+	struct crypto_cipher	*tfm;
+	__u8			key[TCP_FASTOPEN_KEY_LENGTH];
+	struct rcu_head		rcu;
 };
 
 /* write queue abstraction */
-- 
cgit v0.10.2


From 6da334ee0c101fc5ecf62f2b1e11b1524be7b159 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 25 Jun 2013 01:30:11 -0700
Subject: ipv6: add include file to suppress sparse warnings

commit f88c91ddba95 ("ipv6: statically link
register_inet6addr_notifier()" added following sparse warnings :

net/ipv6/addrconf_core.c:83:5: warning: symbol
'register_inet6addr_notifier' was not declared. Should it be static?
net/ipv6/addrconf_core.c:89:5: warning: symbol
'unregister_inet6addr_notifier' was not declared. Should it be static?
net/ipv6/addrconf_core.c:95:5: warning: symbol
'inet6addr_notifier_call_chain' was not declared. Should it be static?

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
index 7210456..d2f8742 100644
--- a/net/ipv6/addrconf_core.c
+++ b/net/ipv6/addrconf_core.c
@@ -5,6 +5,7 @@
 
 #include <linux/export.h>
 #include <net/ipv6.h>
+#include <net/addrconf.h>
 
 #define IPV6_ADDR_SCOPE_TYPE(scope)	((scope) << 16)
 
-- 
cgit v0.10.2


From c957d09ffda417f6c8e3d1f10e2b05228607d6d7 Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Tue, 25 Jun 2013 08:50:11 +0300
Subject: bnx2x: Remove sparse and coccinelle warnings

This patch solves several sparse issues as well as an unneeded semicolon
found via coccinelle.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index d342c5a..ec3aa1d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -1722,7 +1722,7 @@ static int bnx2x_req_irq(struct bnx2x *bp)
 	return request_irq(irq, bnx2x_interrupt, flags, bp->dev->name, bp->dev);
 }
 
-int bnx2x_setup_irqs(struct bnx2x *bp)
+static int bnx2x_setup_irqs(struct bnx2x *bp)
 {
 	int rc = 0;
 	if (bp->flags & USING_MSIX_FLAG &&
@@ -3543,9 +3543,12 @@ static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb,
 	/* outer IP header info */
 	if (xmit_type & XMIT_CSUM_V4) {
 		struct iphdr *iph = ip_hdr(skb);
+		u16 csum = (__force u16)(~iph->check) -
+			   (__force u16)iph->tot_len -
+			   (__force u16)iph->frag_off;
+
 		pbd2->fw_ip_csum_wo_len_flags_frag =
-			bswab16(csum_fold((~iph->check) -
-					  iph->tot_len - iph->frag_off));
+			bswab16(csum_fold((__force __wsum)csum));
 	} else {
 		pbd2->fw_ip_hdr_to_payload_w =
 			hlen_w - ((sizeof(struct ipv6hdr)) >> 1);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 7c6faeb..b8c067d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -1391,7 +1391,7 @@ static bool bnx2x_is_nvm_accessible(struct bnx2x *bp)
 					  bp->pm_cap + PCI_PM_CTRL, &pm);
 
 	if ((rc && !netif_running(dev)) ||
-	    (!rc && ((pm & PCI_PM_CTRL_STATE_MASK) != PCI_D0)))
+	    (!rc && ((pm & PCI_PM_CTRL_STATE_MASK) != (__force u16)PCI_D0)))
 		return false;
 
 	return true;
@@ -1610,8 +1610,10 @@ static int bnx2x_nvram_write1(struct bnx2x *bp, u32 offset, u8 *data_buf,
 		 */
 		val = be32_to_cpu(val_be);
 
-		val &= ~le32_to_cpu(0xff << BYTE_OFFSET(offset));
-		val |= le32_to_cpu(*data_buf << BYTE_OFFSET(offset));
+		val &= ~le32_to_cpu((__force __le32)
+				    (0xff << BYTE_OFFSET(offset)));
+		val |= le32_to_cpu((__force __le32)
+				   (*data_buf << BYTE_OFFSET(offset)));
 
 		rc = bnx2x_nvram_write_dword(bp, align_offset, val,
 					     cmd_flags);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 7318988..740518b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -615,7 +615,7 @@ void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32)
 	if (rc) {
 		BNX2X_ERR("DMAE returned failure %d\n", rc);
 		bnx2x_panic();
-	};
+	}
 }
 
 static void bnx2x_write_dmae_phys_len(struct bnx2x *bp, dma_addr_t phys_addr,
-- 
cgit v0.10.2


From e715c3a939071bacf33296b0b8dc58a29bbc5cf8 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 18 Jun 2013 05:34:58 +0300
Subject: iwlwifi: mvm: add BT-Coex LUT for 1x1 products

1x1 products will need a special LUT.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index 0189b90..83b9ff6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -222,6 +222,7 @@ struct iwl_cfg {
 	const u32 max_inst_size;
 	u8   valid_tx_ant;
 	u8   valid_rx_ant;
+	bool bt_shared_single_ant;
 	u16  nvm_ver;
 	u16  nvm_calib_ver;
 	/* params not likely to change within a device family */
diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 9a4d94a..dbd622a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -202,6 +202,22 @@ static const __le32 iwl_concurrent_lookup[BT_COEX_LUT_SIZE] = {
 	cpu_to_le32(0x00000000),
 };
 
+/* single shared antenna */
+static const __le32 iwl_single_shared_ant_lookup[BT_COEX_LUT_SIZE] = {
+	cpu_to_le32(0x40000000),
+	cpu_to_le32(0x00000000),
+	cpu_to_le32(0x44000000),
+	cpu_to_le32(0x00000000),
+	cpu_to_le32(0x40000000),
+	cpu_to_le32(0x00000000),
+	cpu_to_le32(0x44000000),
+	cpu_to_le32(0x00000000),
+	cpu_to_le32(0xC0004000),
+	cpu_to_le32(0xF0005000),
+	cpu_to_le32(0xC0004000),
+	cpu_to_le32(0xF0005000),
+};
+
 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 {
 	struct iwl_bt_coex_cmd cmd = {
@@ -225,7 +241,10 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 					BT_VALID_REDUCED_TX_POWER |
 					BT_VALID_LUT);
 
-	if (is_loose_coex())
+	if (mvm->cfg->bt_shared_single_ant)
+		memcpy(&cmd.decision_lut, iwl_single_shared_ant_lookup,
+		       sizeof(iwl_single_shared_ant_lookup));
+	else if (is_loose_coex())
 		memcpy(&cmd.decision_lut, iwl_loose_lookup,
 		       sizeof(iwl_tight_lookup));
 	else
-- 
cgit v0.10.2


From dafe6c4335d042fa6573f40795ccfadc4e4fc7c6 Mon Sep 17 00:00:00 2001
From: eytan lifshitz <eytan.lifshitz@intel.com>
Date: Tue, 18 Jun 2013 14:28:56 +0300
Subject: iwlwifi: mvm: add thermal throttling debugging

Add prints visible to the user when entering and exiting
thrermal throttling, because so users can tell that the
NIC is getting too hot (and throughput will decrease.)

Signed-off-by: eytan lifshitz <eytan.lifshitz@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 7d216dd..1c6476e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -352,12 +352,14 @@ struct iwl_tt_params {
  * @dynamic_smps: Is thermal throttling enabled dynamic_smps?
  * @tx_backoff: The current thremal throttling tx backoff in uSec.
  * @params: Parameters to configure the thermal throttling algorithm.
+ * @throttle: Is thermal throttling is active?
  */
 struct iwl_mvm_tt_mgmt {
 	struct delayed_work ct_kill_exit;
 	bool dynamic_smps;
 	u32 tx_backoff;
 	const struct iwl_tt_params *params;
+	bool throttle;
 };
 
 struct iwl_mvm {
diff --git a/drivers/net/wireless/iwlwifi/mvm/tt.c b/drivers/net/wireless/iwlwifi/mvm/tt.c
index a7e3b8d..d6ae7f1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tt.c
@@ -427,6 +427,7 @@ void iwl_mvm_tt_handler(struct iwl_mvm *mvm)
 	const struct iwl_tt_params *params = mvm->thermal_throttle.params;
 	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;
 	s32 temperature = mvm->temperature;
+	bool throttle_enable = false;
 	int i;
 	u32 tx_backoff;
 
@@ -445,6 +446,7 @@ void iwl_mvm_tt_handler(struct iwl_mvm *mvm)
 			ieee80211_iterate_active_interfaces_atomic(
 					mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 					iwl_mvm_tt_smps_iterator, mvm);
+			throttle_enable = true;
 		} else if (tt->dynamic_smps &&
 			   temperature <= params->dynamic_smps_exit) {
 			IWL_DEBUG_TEMP(mvm, "Disable dynamic SMPS\n");
@@ -456,10 +458,12 @@ void iwl_mvm_tt_handler(struct iwl_mvm *mvm)
 	}
 
 	if (params->support_tx_protection) {
-		if (temperature >= params->tx_protection_entry)
+		if (temperature >= params->tx_protection_entry) {
 			iwl_mvm_tt_tx_protection(mvm, true);
-		else if (temperature <= params->tx_protection_exit)
+			throttle_enable = true;
+		} else if (temperature <= params->tx_protection_exit) {
 			iwl_mvm_tt_tx_protection(mvm, false);
+		}
 	}
 
 	if (params->support_tx_backoff) {
@@ -469,9 +473,22 @@ void iwl_mvm_tt_handler(struct iwl_mvm *mvm)
 				break;
 			tx_backoff = params->tx_backoff[i].backoff;
 		}
+		if (tx_backoff != 0)
+			throttle_enable = true;
 		if (tt->tx_backoff != tx_backoff)
 			iwl_mvm_tt_tx_backoff(mvm, tx_backoff);
 	}
+
+	if (!tt->throttle && throttle_enable) {
+		IWL_WARN(mvm,
+			 "Due to high temperature thermal throttling initiated\n");
+		tt->throttle = true;
+	} else if (tt->throttle && !tt->dynamic_smps && tt->tx_backoff == 0 &&
+		   temperature <= params->tx_protection_exit) {
+		IWL_WARN(mvm,
+			 "Temperature is back to normal thermal throttling stopped\n");
+		tt->throttle = false;
+	}
 }
 
 static const struct iwl_tt_params iwl7000_tt_params = {
@@ -502,6 +519,7 @@ void iwl_mvm_tt_initialize(struct iwl_mvm *mvm)
 
 	IWL_DEBUG_TEMP(mvm, "Initialize Thermal Throttling\n");
 	tt->params = &iwl7000_tt_params;
+	tt->throttle = false;
 	INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill);
 }
 
-- 
cgit v0.10.2


From 3a3cb92e1daf2f2627df0a1f8c9577501663fef3 Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Thu, 13 Jun 2013 08:30:12 +0300
Subject: iwlwifi: mvm: Change the settings of AP beacon time

In case that an AP/GO interface is started while there is a
station/P2P client associated, need to make sure that the AP/GO
beacon time is far enough from the station's one in oder to allow
the station to receive the DTIM beacons and the following traffic
etc.

To resolve this, when the AP is started, check if there is an
active station interface, and guarantee that the AP/GO TBTT is far
enough from the station one.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 273b0cc..94aae9c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -865,6 +865,30 @@ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
 	return ret;
 }
 
+struct iwl_mvm_mac_ap_iterator_data {
+	struct iwl_mvm *mvm;
+	struct ieee80211_vif *vif;
+	u32 beacon_device_ts;
+	u16 beacon_int;
+};
+
+/* Find the beacon_device_ts and beacon_int for a managed interface */
+static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac,
+				    struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_mac_ap_iterator_data *data = _data;
+
+	if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
+		return;
+
+	/* Station client has higher priority over P2P client*/
+	if (vif->p2p && data->beacon_device_ts)
+		return;
+
+	data->beacon_device_ts = vif->bss_conf.sync_device_ts;
+	data->beacon_int = vif->bss_conf.beacon_int;
+}
+
 /*
  * Fill the specific data for mac context of type AP of P2P GO
  */
@@ -874,6 +898,11 @@ static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm,
 					 bool add)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_mvm_mac_ap_iterator_data data = {
+		.mvm = mvm,
+		.vif = vif,
+		.beacon_device_ts = 0
+	};
 
 	ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int);
 	ctxt_ap->bi_reciprocal =
@@ -887,16 +916,33 @@ static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm,
 	ctxt_ap->mcast_qid = cpu_to_le32(vif->cab_queue);
 
 	/*
-	 * Only read the system time when the MAC is being added, when we
+	 * Only set the beacon time when the MAC is being added, when we
 	 * just modify the MAC then we should keep the time -- the firmware
 	 * can otherwise have a "jumping" TBTT.
 	 */
-	if (add)
-		mvmvif->ap_beacon_time =
-			iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG);
+	if (add) {
+		/*
+		 * If there is a station/P2P client interface which is
+		 * associated, set the AP's TBTT far enough from the station's
+		 * TBTT. Otherwise, set it to the current system time
+		 */
+		ieee80211_iterate_active_interfaces_atomic(
+			mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+			iwl_mvm_mac_ap_iterator, &data);
+
+		if (data.beacon_device_ts) {
+			u32 rand = (prandom_u32() % (80 - 20)) + 20;
+			mvmvif->ap_beacon_time = data.beacon_device_ts +
+				ieee80211_tu_to_usec(data.beacon_int * rand /
+						     100);
+		} else {
+			mvmvif->ap_beacon_time =
+				iwl_read_prph(mvm->trans,
+					      DEVICE_SYSTEM_TIME_REG);
+		}
+	}
 
 	ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time);
-
 	ctxt_ap->beacon_tsf = 0; /* unused */
 
 	/* TODO: Assume that the beacon id == mac context id */
-- 
cgit v0.10.2


From c7df1f4bdaef7e0c860011a0cc979f6c3684b09a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 20 Jun 2013 20:59:34 +0200
Subject: iwlwifi: pcie: rework RX buffer list init and freeing

The PCIe code has an array of buffer descriptors (RXBs) that have pages
and DMA mappings attached. In regular use, the array isn't used and the
buffers are either on the hardware receive queue or the rx_free/rx_used
lists for recycling.

Occasionally, during module unload, we'd see a warning from this:

WARNING: at lib/list_debug.c:32 __list_add+0x91/0xa0()
list_add corruption. prev->next should be next (c31c98cc), but was c31c80bc. (prev=c31c80bc).
Pid: 519, comm: rmmod Tainted: G        W  O 3.4.24-dev #3
Call Trace:
 [<c10335b2>] warn_slowpath_common+0x72/0xa0
 [<c1033683>] warn_slowpath_fmt+0x33/0x40
 [<c12e31d1>] __list_add+0x91/0xa0
 [<fdf2083c>] iwl_pcie_rxq_free_rbs+0xcc/0xe0 [iwlwifi]
 [<fdf21b3f>] iwl_pcie_rx_free+0x3f/0x210 [iwlwifi]
 [<fdf2dd7a>] iwl_trans_pcie_free+0x2a/0x90 [iwlwifi]

The reason for this seems to be that in iwl_pcie_rxq_free_rbs() we use
the array to free all buffers (the hardware receive queue isn't in use
any more at this point). The function also adds all buffers to rx_used
because it's also used during initialisation (when no freeing happens.)
This can cause the warning because it may add entries to the list that
are already on it. Luckily, this is harmless because it can only happen
when the entire data structure is freed anyway, since during init both
lists are initialized from scratch.

Disentangle this code and treat init and free separately. During init
we just need to put them onto the list after freeing all buffers (for
switching between 4k/8k buffers); during free no list manipulations
are necessary at all.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 3688dc5..25e25ea 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -355,19 +355,16 @@ static void iwl_pcie_rxq_free_rbs(struct iwl_trans *trans)
 	struct iwl_rxq *rxq = &trans_pcie->rxq;
 	int i;
 
-	/* Fill the rx_used queue with _all_ of the Rx buffers */
+	lockdep_assert_held(&rxq->lock);
+
 	for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
-		/* In the reset function, these buffers may have been allocated
-		 * to an SKB, so we need to unmap and free potential storage */
-		if (rxq->pool[i].page != NULL) {
-			dma_unmap_page(trans->dev, rxq->pool[i].page_dma,
-				       PAGE_SIZE << trans_pcie->rx_page_order,
-				       DMA_FROM_DEVICE);
-			__free_pages(rxq->pool[i].page,
-				     trans_pcie->rx_page_order);
-			rxq->pool[i].page = NULL;
-		}
-		list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+		if (!rxq->pool[i].page)
+			continue;
+		dma_unmap_page(trans->dev, rxq->pool[i].page_dma,
+			       PAGE_SIZE << trans_pcie->rx_page_order,
+			       DMA_FROM_DEVICE);
+		__free_pages(rxq->pool[i].page, trans_pcie->rx_page_order);
+		rxq->pool[i].page = NULL;
 	}
 }
 
@@ -491,6 +488,20 @@ static void iwl_pcie_rx_hw_init(struct iwl_trans *trans, struct iwl_rxq *rxq)
 	iwl_write8(trans, CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF);
 }
 
+static void iwl_pcie_rx_init_rxb_lists(struct iwl_rxq *rxq)
+{
+	int i;
+
+	lockdep_assert_held(&rxq->lock);
+
+	INIT_LIST_HEAD(&rxq->rx_free);
+	INIT_LIST_HEAD(&rxq->rx_used);
+	rxq->free_count = 0;
+
+	for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
+		list_add(&rxq->pool[i].list, &rxq->rx_used);
+}
+
 int iwl_pcie_rx_init(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
@@ -505,13 +516,12 @@ int iwl_pcie_rx_init(struct iwl_trans *trans)
 	}
 
 	spin_lock_irqsave(&rxq->lock, flags);
-	INIT_LIST_HEAD(&rxq->rx_free);
-	INIT_LIST_HEAD(&rxq->rx_used);
 
-	INIT_WORK(&trans_pcie->rx_replenish,
-		  iwl_pcie_rx_replenish_work);
+	INIT_WORK(&trans_pcie->rx_replenish, iwl_pcie_rx_replenish_work);
 
+	/* free all first - we might be reconfigured for a different size */
 	iwl_pcie_rxq_free_rbs(trans);
+	iwl_pcie_rx_init_rxb_lists(rxq);
 
 	for (i = 0; i < RX_QUEUE_SIZE; i++)
 		rxq->queue[i] = NULL;
@@ -520,7 +530,6 @@ int iwl_pcie_rx_init(struct iwl_trans *trans)
 	 * not restocked the Rx queue with fresh buffers */
 	rxq->read = rxq->write = 0;
 	rxq->write_actual = 0;
-	rxq->free_count = 0;
 	memset(rxq->rb_stts, 0, sizeof(*rxq->rb_stts));
 	spin_unlock_irqrestore(&rxq->lock, flags);
 
-- 
cgit v0.10.2


From fecba09e424e58444a0b206031632d62977b79ec Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 20 Jun 2013 21:56:49 +0200
Subject: iwlwifi: always use 'rxq' as RX queue struct name

A few places use just 'q', use 'rxq' there like all
other places.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index 25e25ea..fd848cd 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -110,9 +110,10 @@
 /*
  * iwl_rxq_space - Return number of free slots available in queue.
  */
-static int iwl_rxq_space(const struct iwl_rxq *q)
+static int iwl_rxq_space(const struct iwl_rxq *rxq)
 {
-	int s = q->read - q->write;
+	int s = rxq->read - rxq->write;
+
 	if (s <= 0)
 		s += RX_QUEUE_SIZE;
 	/* keep some buffer to not confuse full and empty queue */
@@ -143,21 +144,22 @@ int iwl_pcie_rx_stop(struct iwl_trans *trans)
 /*
  * iwl_pcie_rxq_inc_wr_ptr - Update the write pointer for the RX queue
  */
-static void iwl_pcie_rxq_inc_wr_ptr(struct iwl_trans *trans, struct iwl_rxq *q)
+static void iwl_pcie_rxq_inc_wr_ptr(struct iwl_trans *trans,
+				    struct iwl_rxq *rxq)
 {
 	unsigned long flags;
 	u32 reg;
 
-	spin_lock_irqsave(&q->lock, flags);
+	spin_lock_irqsave(&rxq->lock, flags);
 
-	if (q->need_update == 0)
+	if (rxq->need_update == 0)
 		goto exit_unlock;
 
 	if (trans->cfg->base_params->shadow_reg_enable) {
 		/* shadow register enabled */
 		/* Device expects a multiple of 8 */
-		q->write_actual = (q->write & ~0x7);
-		iwl_write32(trans, FH_RSCSR_CHNL0_WPTR, q->write_actual);
+		rxq->write_actual = (rxq->write & ~0x7);
+		iwl_write32(trans, FH_RSCSR_CHNL0_WPTR, rxq->write_actual);
 	} else {
 		struct iwl_trans_pcie *trans_pcie =
 			IWL_TRANS_GET_PCIE_TRANS(trans);
@@ -175,22 +177,22 @@ static void iwl_pcie_rxq_inc_wr_ptr(struct iwl_trans *trans, struct iwl_rxq *q)
 				goto exit_unlock;
 			}
 
-			q->write_actual = (q->write & ~0x7);
+			rxq->write_actual = (rxq->write & ~0x7);
 			iwl_write_direct32(trans, FH_RSCSR_CHNL0_WPTR,
-					q->write_actual);
+					   rxq->write_actual);
 
 		/* Else device is assumed to be awake */
 		} else {
 			/* Device expects a multiple of 8 */
-			q->write_actual = (q->write & ~0x7);
+			rxq->write_actual = (rxq->write & ~0x7);
 			iwl_write_direct32(trans, FH_RSCSR_CHNL0_WPTR,
-				q->write_actual);
+					   rxq->write_actual);
 		}
 	}
-	q->need_update = 0;
+	rxq->need_update = 0;
 
  exit_unlock:
-	spin_unlock_irqrestore(&q->lock, flags);
+	spin_unlock_irqrestore(&rxq->lock, flags);
 }
 
 /*
-- 
cgit v0.10.2


From cfb4e624314b657ea5831505a380d932f3313a7a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 20 Jun 2013 22:02:05 +0200
Subject: iwlwifi: always use 'trans_pcie' name

A few places use 'pcie_trans' which is a bit non-standard,
use 'trans_pcie' there as well.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 197dbe0..826c156 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -838,8 +838,9 @@ static bool iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans, bool silent,
 						unsigned long *flags)
 {
 	int ret;
-	struct iwl_trans_pcie *pcie_trans = IWL_TRANS_GET_PCIE_TRANS(trans);
-	spin_lock_irqsave(&pcie_trans->reg_lock, *flags);
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+
+	spin_lock_irqsave(&trans_pcie->reg_lock, *flags);
 
 	/* this bit wakes up the NIC */
 	__iwl_trans_pcie_set_bit(trans, CSR_GP_CNTRL,
@@ -875,7 +876,7 @@ static bool iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans, bool silent,
 			WARN_ONCE(1,
 				  "Timeout waiting for hardware access (CSR_GP_CNTRL 0x%08x)\n",
 				  val);
-			spin_unlock_irqrestore(&pcie_trans->reg_lock, *flags);
+			spin_unlock_irqrestore(&trans_pcie->reg_lock, *flags);
 			return false;
 		}
 	}
@@ -884,22 +885,22 @@ static bool iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans, bool silent,
 	 * Fool sparse by faking we release the lock - sparse will
 	 * track nic_access anyway.
 	 */
-	__release(&pcie_trans->reg_lock);
+	__release(&trans_pcie->reg_lock);
 	return true;
 }
 
 static void iwl_trans_pcie_release_nic_access(struct iwl_trans *trans,
 					      unsigned long *flags)
 {
-	struct iwl_trans_pcie *pcie_trans = IWL_TRANS_GET_PCIE_TRANS(trans);
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 
-	lockdep_assert_held(&pcie_trans->reg_lock);
+	lockdep_assert_held(&trans_pcie->reg_lock);
 
 	/*
 	 * Fool sparse by faking we acquiring the lock - sparse will
 	 * track nic_access anyway.
 	 */
-	__acquire(&pcie_trans->reg_lock);
+	__acquire(&trans_pcie->reg_lock);
 
 	__iwl_trans_pcie_clear_bit(trans, CSR_GP_CNTRL,
 				   CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
@@ -910,7 +911,7 @@ static void iwl_trans_pcie_release_nic_access(struct iwl_trans *trans,
 	 * scheduled on different CPUs (after we drop reg_lock).
 	 */
 	mmiowb();
-	spin_unlock_irqrestore(&pcie_trans->reg_lock, *flags);
+	spin_unlock_irqrestore(&trans_pcie->reg_lock, *flags);
 }
 
 static int iwl_trans_pcie_read_mem(struct iwl_trans *trans, u32 addr,
-- 
cgit v0.10.2


From bd4ace2a36e7c87bb5f3eceb54d3b304d395dcf0 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Thu, 21 Mar 2013 17:14:14 +0200
Subject: iwlwifi: mvm: Add support for Low Power RX

To improve power consumption in idle associated mode FW may lower
RX power. This low linearity mode is acceptable for listening low rate
RX such as beacons and groupcast. The driver enables LPRX only if PM
is enabled and associated AP's beacon TX rate is 1Mbps or 6Mbps.
LPRX RSSI threshold is used to limit a range where LPRX is applied.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 63d19d9..e56ed2a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -344,6 +344,13 @@ static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
 	case MVM_DEBUGFS_PM_DISABLE_POWER_OFF:
 		IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val);
 		dbgfs_pm->disable_power_off = val;
+	case MVM_DEBUGFS_PM_LPRX_ENA:
+		IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
+		dbgfs_pm->lprx_ena = val;
+		break;
+	case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
+		IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
+		dbgfs_pm->lprx_rssi_threshold = val;
 		break;
 	}
 }
@@ -387,6 +394,17 @@ static ssize_t iwl_dbgfs_pm_params_write(struct file *file,
 		if (sscanf(buf + 18, "%d", &val) != 1)
 			return -EINVAL;
 		param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF;
+	} else if (!strncmp("lprx=", buf, 5)) {
+		if (sscanf(buf + 5, "%d", &val) != 1)
+			return -EINVAL;
+		param = MVM_DEBUGFS_PM_LPRX_ENA;
+	} else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
+		if (sscanf(buf + 20, "%d", &val) != 1)
+			return -EINVAL;
+		if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val <
+		    POWER_LPRX_RSSI_THRESHOLD_MIN)
+			return -EINVAL;
+		param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
 	} else {
 		return -EINVAL;
 	}
@@ -421,7 +439,7 @@ static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
 			 le32_to_cpu(cmd.skip_dtim_periods));
 	pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
 			 iwlmvm_mod_params.power_scheme);
-	pos += scnprintf(buf+pos, bufsz-pos, "flags = %d\n",
+	pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
 			 le16_to_cpu(cmd.flags));
 	pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
 			 cmd.keep_alive_seconds);
@@ -435,6 +453,10 @@ static ssize_t iwl_dbgfs_pm_params_read(struct file *file,
 				 le32_to_cpu(cmd.rx_data_timeout));
 		pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n",
 				 le32_to_cpu(cmd.tx_data_timeout));
+		if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
+			pos += scnprintf(buf+pos, bufsz-pos,
+					 "lprx_rssi_threshold = %d\n",
+					 le32_to_cpu(cmd.lprx_rssi_threshold));
 	}
 
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
index d8e1929..a6da359 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
@@ -66,6 +66,11 @@
 
 /* Power Management Commands, Responses, Notifications */
 
+/* Radio LP RX Energy Threshold measured in dBm */
+#define POWER_LPRX_RSSI_THRESHOLD	75
+#define POWER_LPRX_RSSI_THRESHOLD_MAX	94
+#define POWER_LPRX_RSSI_THRESHOLD_MIN	30
+
 /**
  * enum iwl_scan_flags - masks for power table command flags
  * @POWER_FLAGS_POWER_SAVE_ENA_MSK: '1' Allow to save power by turning off
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index c6ba553..d40d7db 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -158,6 +158,8 @@ enum iwl_dbgfs_pm_mask {
 	MVM_DEBUGFS_PM_RX_DATA_TIMEOUT = BIT(3),
 	MVM_DEBUGFS_PM_TX_DATA_TIMEOUT = BIT(4),
 	MVM_DEBUGFS_PM_DISABLE_POWER_OFF = BIT(5),
+	MVM_DEBUGFS_PM_LPRX_ENA = BIT(6),
+	MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD = BIT(7),
 };
 
 struct iwl_dbgfs_pm {
@@ -167,6 +169,8 @@ struct iwl_dbgfs_pm {
 	bool skip_over_dtim;
 	u8 skip_dtim_periods;
 	bool disable_power_off;
+	bool lprx_ena;
+	u32 lprx_rssi_threshold;
 	int mask;
 };
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 3760a33..e7ca965 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -137,11 +137,12 @@ static void iwl_mvm_power_log(struct iwl_mvm *mvm,
 				le32_to_cpu(cmd->rx_data_timeout));
 		IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
 				le32_to_cpu(cmd->tx_data_timeout));
-		IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
-				cmd->lprx_rssi_threshold);
 		if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
 			IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
 					le32_to_cpu(cmd->skip_dtim_periods));
+		if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
+			IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
+					le32_to_cpu(cmd->lprx_rssi_threshold));
 	}
 }
 
@@ -181,6 +182,14 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
 
+	if (vif->bss_conf.beacon_rate &&
+	    (vif->bss_conf.beacon_rate->bitrate == 10 ||
+	     vif->bss_conf.beacon_rate->bitrate == 60)) {
+		cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
+		cmd->lprx_rssi_threshold =
+			cpu_to_le32(POWER_LPRX_RSSI_THRESHOLD);
+	}
+
 	dtimper = hw->conf.ps_dtim_period ?: 1;
 
 	/* Check if radar detection is required on current channel */
@@ -236,6 +245,15 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
 		cmd->skip_dtim_periods =
 			cpu_to_le32(mvmvif->dbgfs_pm.skip_dtim_periods);
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
+		if (mvmvif->dbgfs_pm.lprx_ena)
+			cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
+		else
+			cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
+	}
+	if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
+		cmd->lprx_rssi_threshold =
+			cpu_to_le32(mvmvif->dbgfs_pm.lprx_rssi_threshold);
 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 }
 
-- 
cgit v0.10.2


From 60d9d4c6dbd1bad80fb9a77775fc704302a563c9 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Thu, 20 Jun 2013 00:26:31 -0700
Subject: vxlan: Fix sparse warnings.

Fix following sparse warnings.
drivers/net/vxlan.c:238:44: warning: incorrect type in argument 3 (different base types)
drivers/net/vxlan.c:238:44:    expected restricted __be32 [usertype] value
drivers/net/vxlan.c:238:44:    got unsigned int const [unsigned] [usertype] remote_vni
drivers/net/vxlan.c:1735:18: warning: incorrect type in initializer (different signedness)
drivers/net/vxlan.c:1735:18:    expected int *id
drivers/net/vxlan.c:1735:18:    got unsigned int static [toplevel] *<noident>

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 3b03cd4..212a256 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -78,7 +78,7 @@ static bool log_ecn_error = true;
 module_param(log_ecn_error, bool, 0644);
 MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
 
-static unsigned int vxlan_net_id;
+static int vxlan_net_id;
 
 /* per UDP socket information */
 struct vxlan_sock {
@@ -250,7 +250,7 @@ static int vxlan_fdb_info(struct sk_buff *skb, struct vxlan_dev *vxlan,
 	    nla_put_be16(skb, NDA_PORT, rdst->remote_port))
 		goto nla_put_failure;
 	if (rdst->remote_vni != vxlan->default_dst.remote_vni &&
-	    nla_put_be32(skb, NDA_VNI, rdst->remote_vni))
+	    nla_put_u32(skb, NDA_VNI, rdst->remote_vni))
 		goto nla_put_failure;
 	if (rdst->remote_ifindex &&
 	    nla_put_u32(skb, NDA_IFINDEX, rdst->remote_ifindex))
-- 
cgit v0.10.2


From afbd8bae9c798c5cdbe4439d3a50536b5438247c Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike.rapoport@ravellosystems.com>
Date: Tue, 25 Jun 2013 16:01:51 +0300
Subject: vxlan: add implicit fdb entry for default destination

Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 212a256..bdfe46e 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -80,6 +80,8 @@ MODULE_PARM_DESC(log_ecn_error, "Log packets received with corrupted ECN");
 
 static int vxlan_net_id;
 
+static const u8 all_zeros_mac[ETH_ALEN];
+
 /* per UDP socket information */
 struct vxlan_sock {
 	struct hlist_node hlist;
@@ -1151,7 +1153,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct ethhdr *eth;
 	bool did_rsc = false;
-	struct vxlan_rdst *rdst0, *rdst;
+	struct vxlan_rdst *rdst;
 	struct vxlan_fdb *f;
 
 	skb_reset_mac_header(skb);
@@ -1171,26 +1173,27 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 
 	if (f == NULL) {
-		rdst0 = &vxlan->default_dst;
-
-		if (rdst0->remote_ip == htonl(INADDR_ANY) &&
-		    (vxlan->flags & VXLAN_F_L2MISS) &&
-		    !is_multicast_ether_addr(eth->h_dest))
-			vxlan_fdb_miss(vxlan, eth->h_dest);
-	} else {
-		rdst = rdst0 = first_remote(f);
+		f = vxlan_find_mac(vxlan, all_zeros_mac);
+		if (f == NULL) {
+			if ((vxlan->flags & VXLAN_F_L2MISS) &&
+			    !is_multicast_ether_addr(eth->h_dest))
+				vxlan_fdb_miss(vxlan, eth->h_dest);
+
+			dev->stats.tx_dropped++;
+			dev_kfree_skb(skb);
+			return NETDEV_TX_OK;
+		}
+	}
 
-		/* if there are multiple destinations, send copies */
-		list_for_each_entry_continue_rcu(rdst, &f->remotes, list) {
-			struct sk_buff *skb1;
+	list_for_each_entry_rcu(rdst, &f->remotes, list) {
+		struct sk_buff *skb1;
 
-			skb1 = skb_clone(skb, GFP_ATOMIC);
-			if (skb1)
-				vxlan_xmit_one(skb1, dev, rdst, did_rsc);
-		}
+		skb1 = skb_clone(skb, GFP_ATOMIC);
+		if (skb1)
+			vxlan_xmit_one(skb1, dev, rdst, did_rsc);
 	}
 
-	vxlan_xmit_one(skb, dev, rdst0, did_rsc);
+	dev_kfree_skb(skb);
 	return NETDEV_TX_OK;
 }
 
@@ -1260,12 +1263,25 @@ static int vxlan_init(struct net_device *dev)
 	return 0;
 }
 
+static void vxlan_fdb_delete_defualt(struct vxlan_dev *vxlan)
+{
+	struct vxlan_fdb *f;
+
+	spin_lock_bh(&vxlan->hash_lock);
+	f = __vxlan_find_mac(vxlan, all_zeros_mac);
+	if (f)
+		vxlan_fdb_destroy(vxlan, f);
+	spin_unlock_bh(&vxlan->hash_lock);
+}
+
 static void vxlan_uninit(struct net_device *dev)
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
 	struct vxlan_sock *vs = vxlan->vn_sock;
 
+	vxlan_fdb_delete_defualt(vxlan);
+
 	if (vs)
 		vxlan_sock_release(vn, vs);
 	free_percpu(dev->tstats);
@@ -1304,7 +1320,9 @@ static void vxlan_flush(struct vxlan_dev *vxlan)
 		hlist_for_each_safe(p, n, &vxlan->fdb_head[h]) {
 			struct vxlan_fdb *f
 				= container_of(p, struct vxlan_fdb, hlist);
-			vxlan_fdb_destroy(vxlan, f);
+			/* the all_zeros_mac entry is deleted at vxlan_uninit */
+			if (!is_zero_ether_addr(f->eth_addr))
+				vxlan_fdb_destroy(vxlan, f);
 		}
 	}
 	spin_unlock_bh(&vxlan->hash_lock);
@@ -1657,10 +1675,22 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 
 	SET_ETHTOOL_OPS(dev, &vxlan_ethtool_ops);
 
-	err = register_netdevice(dev);
+	/* create an fdb entry for default destination */
+	err = vxlan_fdb_create(vxlan, all_zeros_mac,
+			       vxlan->default_dst.remote_ip,
+			       NUD_REACHABLE|NUD_PERMANENT,
+			       NLM_F_EXCL|NLM_F_CREATE,
+			       vxlan->dst_port, vxlan->default_dst.remote_vni,
+			       vxlan->default_dst.remote_ifindex, NTF_SELF);
 	if (err)
 		return err;
 
+	err = register_netdevice(dev);
+	if (err) {
+		vxlan_fdb_delete_defualt(vxlan);
+		return err;
+	}
+
 	list_add(&vxlan->next, &vn->vxlan_list);
 
 	return 0;
-- 
cgit v0.10.2


From a5e7c10a7ec244f272703f36f339c967efe1fc0d Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike.rapoport@ravellosystems.com>
Date: Tue, 25 Jun 2013 16:01:52 +0300
Subject: vxlan: introduce vxlan_fdb_find_rdst

which will be reused by vxlan_fdb_delete

Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index bdfe46e..306bd94 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -388,21 +388,34 @@ static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
 	return f;
 }
 
-/* Add/update destinations for multicast */
-static int vxlan_fdb_append(struct vxlan_fdb *f,
-			    __be32 ip, __be16 port, __u32 vni, __u32 ifindex)
+/* caller should hold vxlan->hash_lock */
+static struct vxlan_rdst *vxlan_fdb_find_rdst(struct vxlan_fdb *f,
+					      __be32 ip, __be16 port,
+					      __u32 vni, __u32 ifindex)
 {
 	struct vxlan_rdst *rd;
 
-	/* protected by vxlan->hash_lock */
 	list_for_each_entry(rd, &f->remotes, list) {
 		if (rd->remote_ip == ip &&
 		    rd->remote_port == port &&
 		    rd->remote_vni == vni &&
 		    rd->remote_ifindex == ifindex)
-			return 0;
+			return rd;
 	}
 
+	return NULL;
+}
+
+/* Add/update destinations for multicast */
+static int vxlan_fdb_append(struct vxlan_fdb *f,
+			    __be32 ip, __be16 port, __u32 vni, __u32 ifindex)
+{
+	struct vxlan_rdst *rd;
+
+	rd = vxlan_fdb_find_rdst(f, ip, port, vni, ifindex);
+	if (rd)
+		return 0;
+
 	rd = kmalloc(sizeof(*rd), GFP_ATOMIC);
 	if (rd == NULL)
 		return -ENOBUFS;
-- 
cgit v0.10.2


From f0b074be7b61a800e39053d73dabf850649c1c8f Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike.rapoport@ravellosystems.com>
Date: Tue, 25 Jun 2013 16:01:53 +0300
Subject: vxlan: introduce vxlan_fdb_parse

which will be reused by vxlan_fdb_delete

Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 306bd94..ee7cc71 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -518,58 +518,77 @@ static void vxlan_fdb_destroy(struct vxlan_dev *vxlan, struct vxlan_fdb *f)
 	call_rcu(&f->rcu, vxlan_fdb_free);
 }
 
-/* Add static entry (via netlink) */
-static int vxlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
-			 struct net_device *dev,
-			 const unsigned char *addr, u16 flags)
+static int vxlan_fdb_parse(struct nlattr *tb[], struct vxlan_dev *vxlan,
+			   __be32 *ip, __be16 *port, u32 *vni, u32 *ifindex)
 {
-	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct net *net = dev_net(vxlan->dev);
-	__be32 ip;
-	__be16 port;
-	u32 vni, ifindex;
-	int err;
-
-	if (!(ndm->ndm_state & (NUD_PERMANENT|NUD_REACHABLE))) {
-		pr_info("RTM_NEWNEIGH with invalid state %#x\n",
-			ndm->ndm_state);
-		return -EINVAL;
-	}
-
-	if (tb[NDA_DST] == NULL)
-		return -EINVAL;
 
-	if (nla_len(tb[NDA_DST]) != sizeof(__be32))
-		return -EAFNOSUPPORT;
+	if (tb[NDA_DST]) {
+		if (nla_len(tb[NDA_DST]) != sizeof(__be32))
+			return -EAFNOSUPPORT;
 
-	ip = nla_get_be32(tb[NDA_DST]);
+		*ip = nla_get_be32(tb[NDA_DST]);
+	} else {
+		*ip = htonl(INADDR_ANY);
+	}
 
 	if (tb[NDA_PORT]) {
 		if (nla_len(tb[NDA_PORT]) != sizeof(__be16))
 			return -EINVAL;
-		port = nla_get_be16(tb[NDA_PORT]);
-	} else
-		port = vxlan->dst_port;
+		*port = nla_get_be16(tb[NDA_PORT]);
+	} else {
+		*port = vxlan->dst_port;
+	}
 
 	if (tb[NDA_VNI]) {
 		if (nla_len(tb[NDA_VNI]) != sizeof(u32))
 			return -EINVAL;
-		vni = nla_get_u32(tb[NDA_VNI]);
-	} else
-		vni = vxlan->default_dst.remote_vni;
+		*vni = nla_get_u32(tb[NDA_VNI]);
+	} else {
+		*vni = vxlan->default_dst.remote_vni;
+	}
 
 	if (tb[NDA_IFINDEX]) {
 		struct net_device *tdev;
 
 		if (nla_len(tb[NDA_IFINDEX]) != sizeof(u32))
 			return -EINVAL;
-		ifindex = nla_get_u32(tb[NDA_IFINDEX]);
-		tdev = dev_get_by_index(net, ifindex);
+		*ifindex = nla_get_u32(tb[NDA_IFINDEX]);
+		tdev = dev_get_by_index(net, *ifindex);
 		if (!tdev)
 			return -EADDRNOTAVAIL;
 		dev_put(tdev);
-	} else
-		ifindex = 0;
+	} else {
+		*ifindex = 0;
+	}
+
+	return 0;
+}
+
+/* Add static entry (via netlink) */
+static int vxlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+			 struct net_device *dev,
+			 const unsigned char *addr, u16 flags)
+{
+	struct vxlan_dev *vxlan = netdev_priv(dev);
+	/* struct net *net = dev_net(vxlan->dev); */
+	__be32 ip;
+	__be16 port;
+	u32 vni, ifindex;
+	int err;
+
+	if (!(ndm->ndm_state & (NUD_PERMANENT|NUD_REACHABLE))) {
+		pr_info("RTM_NEWNEIGH with invalid state %#x\n",
+			ndm->ndm_state);
+		return -EINVAL;
+	}
+
+	if (tb[NDA_DST] == NULL)
+		return -EINVAL;
+
+	err = vxlan_fdb_parse(tb, vxlan, &ip, &port, &vni, &ifindex);
+	if (err)
+		return err;
 
 	spin_lock_bh(&vxlan->hash_lock);
 	err = vxlan_fdb_create(vxlan, addr, ip, ndm->ndm_state, flags,
-- 
cgit v0.10.2


From bc7892ba39992c6d645e906f1d52a626395b4b11 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike.rapoport@ravellosystems.com>
Date: Tue, 25 Jun 2013 16:01:54 +0300
Subject: vxlan: allow removal of single destination from fdb entry

When the last item is deleted from the remote destinations list, the
fdb entry is destroyed.

Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index ee7cc71..c182520 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -105,6 +105,7 @@ struct vxlan_rdst {
 	u32			 remote_vni;
 	u32			 remote_ifindex;
 	struct list_head	 list;
+	struct rcu_head		 rcu;
 };
 
 /* Forwarding table entry */
@@ -496,6 +497,12 @@ static int vxlan_fdb_create(struct vxlan_dev *vxlan,
 	return 0;
 }
 
+static void vxlan_fdb_free_rdst(struct rcu_head *head)
+{
+	struct vxlan_rdst *rd = container_of(head, struct vxlan_rdst, rcu);
+	kfree(rd);
+}
+
 static void vxlan_fdb_free(struct rcu_head *head)
 {
 	struct vxlan_fdb *f = container_of(head, struct vxlan_fdb, rcu);
@@ -605,14 +612,43 @@ static int vxlan_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
 {
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_fdb *f;
-	int err = -ENOENT;
+	struct vxlan_rdst *rd = NULL;
+	__be32 ip;
+	__be16 port;
+	u32 vni, ifindex;
+	int err;
+
+	err = vxlan_fdb_parse(tb, vxlan, &ip, &port, &vni, &ifindex);
+	if (err)
+		return err;
+
+	err = -ENOENT;
 
 	spin_lock_bh(&vxlan->hash_lock);
 	f = vxlan_find_mac(vxlan, addr);
-	if (f) {
-		vxlan_fdb_destroy(vxlan, f);
-		err = 0;
+	if (!f)
+		goto out;
+
+	if (ip != htonl(INADDR_ANY)) {
+		rd = vxlan_fdb_find_rdst(f, ip, port, vni, ifindex);
+		if (!rd)
+			goto out;
+	}
+
+	err = 0;
+
+	/* remove a destination if it's not the only one on the list,
+	 * otherwise destroy the fdb entry
+	 */
+	if (rd && !list_is_singular(&f->remotes)) {
+		list_del_rcu(&rd->list);
+		call_rcu(&rd->rcu, vxlan_fdb_free_rdst);
+		goto out;
 	}
+
+	vxlan_fdb_destroy(vxlan, f);
+
+out:
 	spin_unlock_bh(&vxlan->hash_lock);
 
 	return err;
-- 
cgit v0.10.2


From f693dff7107063f0ce08502052b78c4d4feb0e87 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike.rapoport@ravellosystems.com>
Date: Tue, 25 Jun 2013 16:01:55 +0300
Subject: rtnetlink: allow using zero MAC address in rtnl_fdb_{add,del}

This is required for multiple default destinations management in VXLAN

Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 9007533..3de7408 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2109,10 +2109,6 @@ static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
 	}
 
 	addr = nla_data(tb[NDA_LLADDR]);
-	if (is_zero_ether_addr(addr)) {
-		pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid ether address\n");
-		return -EINVAL;
-	}
 
 	err = -EOPNOTSUPP;
 
@@ -2210,10 +2206,6 @@ static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
 	}
 
 	addr = nla_data(tb[NDA_LLADDR]);
-	if (is_zero_ether_addr(addr)) {
-		pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid ether address\n");
-		return -EINVAL;
-	}
 
 	err = -EOPNOTSUPP;
 
-- 
cgit v0.10.2


From 58e4c767046a35f11a55af6ce946054ddf4a8580 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <mike.rapoport@ravellosystems.com>
Date: Tue, 25 Jun 2013 16:01:56 +0300
Subject: vxlan: fdb: allow specifying multiple destinations for zero MAC

The zero MAC entry in the fdb is used as default destination. With
multiple default destinations it is possible to use vxlan in
environments that disable multicast on the infrastructure level, e.g.
public clouds.

Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index c182520..3e75f97 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -458,7 +458,8 @@ static int vxlan_fdb_create(struct vxlan_dev *vxlan,
 			notify = 1;
 		}
 		if ((flags & NLM_F_APPEND) &&
-		    is_multicast_ether_addr(f->eth_addr)) {
+		    (is_multicast_ether_addr(f->eth_addr) ||
+		     is_zero_ether_addr(f->eth_addr))) {
 			int rc = vxlan_fdb_append(f, ip, port, vni, ifindex);
 
 			if (rc < 0)
-- 
cgit v0.10.2


From 819bc78f539038e3203f63342e20b75d7660d232 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 24 Jun 2013 13:21:48 +0200
Subject: netiucv: remove unused macro

If someone is interested to dump something they may consider to use
print_hex_dump() or print_hex_dump_bytes() kernel helpers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 9ca3996..279ad50 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -130,26 +130,6 @@ static inline int iucv_dbf_passes(debug_info_t *dbf_grp, int level)
 /**
  * some more debug stuff
  */
-#define IUCV_HEXDUMP16(importance,header,ptr) \
-PRINT_##importance(header "%02x %02x %02x %02x  %02x %02x %02x %02x  " \
-		   "%02x %02x %02x %02x  %02x %02x %02x %02x\n", \
-		   *(((char*)ptr)),*(((char*)ptr)+1),*(((char*)ptr)+2), \
-		   *(((char*)ptr)+3),*(((char*)ptr)+4),*(((char*)ptr)+5), \
-		   *(((char*)ptr)+6),*(((char*)ptr)+7),*(((char*)ptr)+8), \
-		   *(((char*)ptr)+9),*(((char*)ptr)+10),*(((char*)ptr)+11), \
-		   *(((char*)ptr)+12),*(((char*)ptr)+13), \
-		   *(((char*)ptr)+14),*(((char*)ptr)+15)); \
-PRINT_##importance(header "%02x %02x %02x %02x  %02x %02x %02x %02x  " \
-		   "%02x %02x %02x %02x  %02x %02x %02x %02x\n", \
-		   *(((char*)ptr)+16),*(((char*)ptr)+17), \
-		   *(((char*)ptr)+18),*(((char*)ptr)+19), \
-		   *(((char*)ptr)+20),*(((char*)ptr)+21), \
-		   *(((char*)ptr)+22),*(((char*)ptr)+23), \
-		   *(((char*)ptr)+24),*(((char*)ptr)+25), \
-		   *(((char*)ptr)+26),*(((char*)ptr)+27), \
-		   *(((char*)ptr)+28),*(((char*)ptr)+29), \
-		   *(((char*)ptr)+30),*(((char*)ptr)+31));
-
 #define PRINTK_HEADER " iucv: "       /* for debugging */
 
 /* dummy device to make sure netiucv_pm functions are called */
-- 
cgit v0.10.2


From fe44014a8287b372e22ef4daf7b682e6378b784f Mon Sep 17 00:00:00 2001
From: Stefan Raspl <raspl@linux.vnet.ibm.com>
Date: Mon, 24 Jun 2013 13:21:49 +0200
Subject: qeth: Increase default MTU for OSA devices

Increase the default MTU for real OSA devices in layer 2 mode
to 1500 Bytes for increased compatibility.

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 6cd0fc1..f161a10 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -2198,11 +2198,11 @@ static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
 		case QETH_LINK_TYPE_LANE_TR:
 			return 2000;
 		default:
-			return 1492;
+			return card->options.layer2 ? 1500 : 1492;
 		}
 	case QETH_CARD_TYPE_OSM:
 	case QETH_CARD_TYPE_OSX:
-		return 1492;
+		return card->options.layer2 ? 1500 : 1492;
 	default:
 		return 1500;
 	}
@@ -2275,9 +2275,10 @@ static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
 		card->info.max_mtu = mtu;
 		card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
 	} else {
-		card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
 		card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
 			iob->data);
+		card->info.initial_mtu = min(card->info.max_mtu,
+					qeth_get_initial_mtu_for_card(card));
 		card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
 	}
 
-- 
cgit v0.10.2


From a0c98523d7d71e0276f3cb127bc0c6d4fc85907a Mon Sep 17 00:00:00 2001
From: Ursula Braun <ursula.braun@de.ibm.com>
Date: Mon, 24 Jun 2013 13:21:50 +0200
Subject: qeth: change default standard blkt settings for OSA

blkt settings (or LAN idle settings) for an OSA Express card
determine when and how often an OSA Express card tells the
operating system about new incoming packets. The semantic of
these settings has changed starting with OSA Express3. Currently
the qeth standard settings apply to OSA Express2 and older
generations of OSA Express cards, while new generations of OSA
Express cards require extra coding of their reasonable default.

To cover future OSA Express generations the qeth default standard
blkt setting is now the desired setting for OSA generations
starting with OSA Express3, while the fixed set of older OSA
Express cards receives its blkt settings explicitly.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reviewed-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index f161a10..d7d036b 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -1729,14 +1729,14 @@ static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
 	QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
 
 	if (prcd[74] == 0xF0 && prcd[75] == 0xF0 &&
-	    (prcd[76] == 0xF5 || prcd[76] == 0xF6)) {
-		card->info.blkt.time_total = 250;
-		card->info.blkt.inter_packet = 5;
-		card->info.blkt.inter_packet_jumbo = 15;
-	} else {
+	    prcd[76] >= 0xF1 && prcd[76] <= 0xF4) {
 		card->info.blkt.time_total = 0;
 		card->info.blkt.inter_packet = 0;
 		card->info.blkt.inter_packet_jumbo = 0;
+	} else {
+		card->info.blkt.time_total = 250;
+		card->info.blkt.inter_packet = 5;
+		card->info.blkt.inter_packet_jumbo = 15;
 	}
 }
 
-- 
cgit v0.10.2


From ede88671664128b811e7c709bead39f5b3f3abcf Mon Sep 17 00:00:00 2001
From: Stefan Raspl <raspl@linux.vnet.ibm.com>
Date: Mon, 24 Jun 2013 13:21:51 +0200
Subject: qeth: Fix crash on initial MTU size change

When the initial MTU size is changed prior to any activity on the device
(e.g. by attaching a z/VM vNIC already configured in Linux to a guestLAN),
we call dev_kfree_skb_irq(NULL) which results in a kernel panic.
Adding a proper check for NULL pointers to address this issue.

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index d7d036b..e4ca704 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -1282,8 +1282,10 @@ static void qeth_free_qdio_buffers(struct qeth_card *card)
 
 	qeth_free_cq(card);
 	cancel_delayed_work_sync(&card->buffer_reclaim_work);
-	for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
-		dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
+	for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
+		if (card->qdio.in_q->bufs[j].rx_skb)
+			dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
+	}
 	kfree(card->qdio.in_q);
 	card->qdio.in_q = NULL;
 	/* inbound buffer pool */
-- 
cgit v0.10.2


From 6541aa52a0f9911b0d9d9df14b1da3147a98f58b Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Mon, 24 Jun 2013 13:21:52 +0200
Subject: qeth: use default napi weight

Since commit 82dc3c63c692b1e1d59378ecee948ac88e034aad
"net: introduce NAPI_POLL_WEIGHT" network drivers receive a warning
when they use napi weight higher than NAPI_POLL_WEIGHT. This patch
reduces QETH_NAPI_WEIGHT from 128 to 64 (NAPI_POLL_WEIGHT).

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index c4f392d..41ef943 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -738,7 +738,7 @@ struct qeth_rx {
 	int qdio_err;
 };
 
-#define QETH_NAPI_WEIGHT 128
+#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
 
 struct qeth_card {
 	struct list_head list;
-- 
cgit v0.10.2


From 51151a16a60f0a886a0b1e4a0697001198af50c4 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sun, 23 Jun 2013 08:17:56 -0700
Subject: mlx4: allow order-0 memory allocations in RX path

Signed-off-by: Eric Dumazet <edumazet@google.com>

mlx4 exclusively uses order-2 allocations in RX path, which are
likely to fail under memory pressure.

We therefore drop frames more than needed.

This patch tries order-3, order-2, order-1 and finally order-0
allocations to keep good performance, yet allow allocations if/when
memory gets fragmented.

By using larger pages, and avoiding unnecessary get_page()/put_page()
on compound pages, this patch improves performance as well, lowering
false sharing on struct page.

Also use GFP_KERNEL allocations in initialization path, as allocating 12
MB (390 order-3 pages) can easily fail with GFP_ATOMIC.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Amir Vadai <amirv@mellanox.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 9c57581..76997b9 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -43,40 +43,64 @@
 
 #include "mlx4_en.h"
 
+static int mlx4_alloc_pages(struct mlx4_en_priv *priv,
+			    struct mlx4_en_rx_alloc *page_alloc,
+			    const struct mlx4_en_frag_info *frag_info,
+			    gfp_t _gfp)
+{
+	int order;
+	struct page *page;
+	dma_addr_t dma;
+
+	for (order = MLX4_EN_ALLOC_PREFER_ORDER; ;) {
+		gfp_t gfp = _gfp;
+
+		if (order)
+			gfp |= __GFP_COMP | __GFP_NOWARN;
+		page = alloc_pages(gfp, order);
+		if (likely(page))
+			break;
+		if (--order < 0 ||
+		    ((PAGE_SIZE << order) < frag_info->frag_size))
+			return -ENOMEM;
+	}
+	dma = dma_map_page(priv->ddev, page, 0, PAGE_SIZE << order,
+			   PCI_DMA_FROMDEVICE);
+	if (dma_mapping_error(priv->ddev, dma)) {
+		put_page(page);
+		return -ENOMEM;
+	}
+	page_alloc->size = PAGE_SIZE << order;
+	page_alloc->page = page;
+	page_alloc->dma = dma;
+	page_alloc->offset = frag_info->frag_align;
+	/* Not doing get_page() for each frag is a big win
+	 * on asymetric workloads.
+	 */
+	atomic_set(&page->_count, page_alloc->size / frag_info->frag_stride);
+	return 0;
+}
+
 static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv,
 			       struct mlx4_en_rx_desc *rx_desc,
 			       struct mlx4_en_rx_alloc *frags,
-			       struct mlx4_en_rx_alloc *ring_alloc)
+			       struct mlx4_en_rx_alloc *ring_alloc,
+			       gfp_t gfp)
 {
 	struct mlx4_en_rx_alloc page_alloc[MLX4_EN_MAX_RX_FRAGS];
-	struct mlx4_en_frag_info *frag_info;
+	const struct mlx4_en_frag_info *frag_info;
 	struct page *page;
 	dma_addr_t dma;
 	int i;
 
 	for (i = 0; i < priv->num_frags; i++) {
 		frag_info = &priv->frag_info[i];
-		if (ring_alloc[i].offset == frag_info->last_offset) {
-			page = alloc_pages(GFP_ATOMIC | __GFP_COMP,
-					MLX4_EN_ALLOC_ORDER);
-			if (!page)
-				goto out;
-			dma = dma_map_page(priv->ddev, page, 0,
-				MLX4_EN_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
-			if (dma_mapping_error(priv->ddev, dma)) {
-				put_page(page);
-				goto out;
-			}
-			page_alloc[i].page = page;
-			page_alloc[i].dma = dma;
-			page_alloc[i].offset = frag_info->frag_align;
-		} else {
-			page_alloc[i].page = ring_alloc[i].page;
-			get_page(ring_alloc[i].page);
-			page_alloc[i].dma = ring_alloc[i].dma;
-			page_alloc[i].offset = ring_alloc[i].offset +
-						frag_info->frag_stride;
-		}
+		page_alloc[i] = ring_alloc[i];
+		page_alloc[i].offset += frag_info->frag_stride;
+		if (page_alloc[i].offset + frag_info->frag_stride <= ring_alloc[i].size)
+			continue;
+		if (mlx4_alloc_pages(priv, &page_alloc[i], frag_info, gfp))
+			goto out;
 	}
 
 	for (i = 0; i < priv->num_frags; i++) {
@@ -88,14 +112,16 @@ static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv,
 
 	return 0;
 
-
 out:
 	while (i--) {
 		frag_info = &priv->frag_info[i];
-		if (ring_alloc[i].offset == frag_info->last_offset)
+		if (page_alloc[i].page != ring_alloc[i].page) {
 			dma_unmap_page(priv->ddev, page_alloc[i].dma,
-				MLX4_EN_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
-		put_page(page_alloc[i].page);
+				page_alloc[i].size, PCI_DMA_FROMDEVICE);
+			page = page_alloc[i].page;
+			atomic_set(&page->_count, 1);
+			put_page(page);
+		}
 	}
 	return -ENOMEM;
 }
@@ -104,12 +130,12 @@ static void mlx4_en_free_frag(struct mlx4_en_priv *priv,
 			      struct mlx4_en_rx_alloc *frags,
 			      int i)
 {
-	struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
+	const struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
 
-	if (frags[i].offset == frag_info->last_offset) {
-		dma_unmap_page(priv->ddev, frags[i].dma, MLX4_EN_ALLOC_SIZE,
+	if (frags[i].offset + frag_info->frag_stride > frags[i].size)
+		dma_unmap_page(priv->ddev, frags[i].dma, frags[i].size,
 					 PCI_DMA_FROMDEVICE);
-	}
+
 	if (frags[i].page)
 		put_page(frags[i].page);
 }
@@ -117,35 +143,28 @@ static void mlx4_en_free_frag(struct mlx4_en_priv *priv,
 static int mlx4_en_init_allocator(struct mlx4_en_priv *priv,
 				  struct mlx4_en_rx_ring *ring)
 {
-	struct mlx4_en_rx_alloc *page_alloc;
 	int i;
+	struct mlx4_en_rx_alloc *page_alloc;
 
 	for (i = 0; i < priv->num_frags; i++) {
-		page_alloc = &ring->page_alloc[i];
-		page_alloc->page = alloc_pages(GFP_ATOMIC | __GFP_COMP,
-					       MLX4_EN_ALLOC_ORDER);
-		if (!page_alloc->page)
-			goto out;
+		const struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
 
-		page_alloc->dma = dma_map_page(priv->ddev, page_alloc->page, 0,
-					MLX4_EN_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
-		if (dma_mapping_error(priv->ddev, page_alloc->dma)) {
-			put_page(page_alloc->page);
-			page_alloc->page = NULL;
+		if (mlx4_alloc_pages(priv, &ring->page_alloc[i],
+				     frag_info, GFP_KERNEL))
 			goto out;
-		}
-		page_alloc->offset = priv->frag_info[i].frag_align;
-		en_dbg(DRV, priv, "Initialized allocator:%d with page:%p\n",
-		       i, page_alloc->page);
 	}
 	return 0;
 
 out:
 	while (i--) {
+		struct page *page;
+
 		page_alloc = &ring->page_alloc[i];
 		dma_unmap_page(priv->ddev, page_alloc->dma,
-				MLX4_EN_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
-		put_page(page_alloc->page);
+			       page_alloc->size, PCI_DMA_FROMDEVICE);
+		page = page_alloc->page;
+		atomic_set(&page->_count, 1);
+		put_page(page);
 		page_alloc->page = NULL;
 	}
 	return -ENOMEM;
@@ -158,13 +177,18 @@ static void mlx4_en_destroy_allocator(struct mlx4_en_priv *priv,
 	int i;
 
 	for (i = 0; i < priv->num_frags; i++) {
+		const struct mlx4_en_frag_info *frag_info = &priv->frag_info[i];
+
 		page_alloc = &ring->page_alloc[i];
 		en_dbg(DRV, priv, "Freeing allocator:%d count:%d\n",
 		       i, page_count(page_alloc->page));
 
 		dma_unmap_page(priv->ddev, page_alloc->dma,
-				MLX4_EN_ALLOC_SIZE, PCI_DMA_FROMDEVICE);
-		put_page(page_alloc->page);
+				page_alloc->size, PCI_DMA_FROMDEVICE);
+		while (page_alloc->offset + frag_info->frag_stride < page_alloc->size) {
+			put_page(page_alloc->page);
+			page_alloc->offset += frag_info->frag_stride;
+		}
 		page_alloc->page = NULL;
 	}
 }
@@ -195,13 +219,14 @@ static void mlx4_en_init_rx_desc(struct mlx4_en_priv *priv,
 }
 
 static int mlx4_en_prepare_rx_desc(struct mlx4_en_priv *priv,
-				   struct mlx4_en_rx_ring *ring, int index)
+				   struct mlx4_en_rx_ring *ring, int index,
+				   gfp_t gfp)
 {
 	struct mlx4_en_rx_desc *rx_desc = ring->buf + (index * ring->stride);
 	struct mlx4_en_rx_alloc *frags = ring->rx_info +
 					(index << priv->log_rx_info);
 
-	return mlx4_en_alloc_frags(priv, rx_desc, frags, ring->page_alloc);
+	return mlx4_en_alloc_frags(priv, rx_desc, frags, ring->page_alloc, gfp);
 }
 
 static inline void mlx4_en_update_rx_prod_db(struct mlx4_en_rx_ring *ring)
@@ -235,7 +260,8 @@ static int mlx4_en_fill_rx_buffers(struct mlx4_en_priv *priv)
 			ring = &priv->rx_ring[ring_ind];
 
 			if (mlx4_en_prepare_rx_desc(priv, ring,
-						    ring->actual_size)) {
+						    ring->actual_size,
+						    GFP_KERNEL)) {
 				if (ring->actual_size < MLX4_EN_MIN_RX_SIZE) {
 					en_err(priv, "Failed to allocate "
 						     "enough rx buffers\n");
@@ -450,11 +476,11 @@ static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv,
 					DMA_FROM_DEVICE);
 
 		/* Save page reference in skb */
-		get_page(frags[nr].page);
 		__skb_frag_set_page(&skb_frags_rx[nr], frags[nr].page);
 		skb_frag_size_set(&skb_frags_rx[nr], frag_info->frag_size);
 		skb_frags_rx[nr].page_offset = frags[nr].offset;
 		skb->truesize += frag_info->frag_stride;
+		frags[nr].page = NULL;
 	}
 	/* Adjust size of last fragment to match actual length */
 	if (nr > 0)
@@ -547,7 +573,7 @@ static void mlx4_en_refill_rx_buffers(struct mlx4_en_priv *priv,
 	int index = ring->prod & ring->size_mask;
 
 	while ((u32) (ring->prod - ring->cons) < ring->actual_size) {
-		if (mlx4_en_prepare_rx_desc(priv, ring, index))
+		if (mlx4_en_prepare_rx_desc(priv, ring, index, GFP_ATOMIC))
 			break;
 		ring->prod++;
 		index = ring->prod & ring->size_mask;
@@ -805,21 +831,7 @@ int mlx4_en_poll_rx_cq(struct napi_struct *napi, int budget)
 	return done;
 }
 
-
-/* Calculate the last offset position that accommodates a full fragment
- * (assuming fagment size = stride-align) */
-static int mlx4_en_last_alloc_offset(struct mlx4_en_priv *priv, u16 stride, u16 align)
-{
-	u16 res = MLX4_EN_ALLOC_SIZE % stride;
-	u16 offset = MLX4_EN_ALLOC_SIZE - stride - res + align;
-
-	en_dbg(DRV, priv, "Calculated last offset for stride:%d align:%d "
-			    "res:%d offset:%d\n", stride, align, res, offset);
-	return offset;
-}
-
-
-static int frag_sizes[] = {
+static const int frag_sizes[] = {
 	FRAG_SZ0,
 	FRAG_SZ1,
 	FRAG_SZ2,
@@ -847,9 +859,6 @@ void mlx4_en_calc_rx_buf(struct net_device *dev)
 			priv->frag_info[i].frag_stride =
 				ALIGN(frag_sizes[i], SMP_CACHE_BYTES);
 		}
-		priv->frag_info[i].last_offset = mlx4_en_last_alloc_offset(
-						priv, priv->frag_info[i].frag_stride,
-						priv->frag_info[i].frag_align);
 		buf_size += priv->frag_info[i].frag_size;
 		i++;
 	}
@@ -861,13 +870,13 @@ void mlx4_en_calc_rx_buf(struct net_device *dev)
 	en_dbg(DRV, priv, "Rx buffer scatter-list (effective-mtu:%d "
 		  "num_frags:%d):\n", eff_mtu, priv->num_frags);
 	for (i = 0; i < priv->num_frags; i++) {
-		en_dbg(DRV, priv, "  frag:%d - size:%d prefix:%d align:%d "
-				"stride:%d last_offset:%d\n", i,
-				priv->frag_info[i].frag_size,
-				priv->frag_info[i].frag_prefix_size,
-				priv->frag_info[i].frag_align,
-				priv->frag_info[i].frag_stride,
-				priv->frag_info[i].last_offset);
+		en_err(priv,
+		       "  frag:%d - size:%d prefix:%d align:%d stride:%d\n",
+		       i,
+		       priv->frag_info[i].frag_size,
+		       priv->frag_info[i].frag_prefix_size,
+		       priv->frag_info[i].frag_align,
+		       priv->frag_info[i].frag_stride);
 	}
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 57192a8..35fb60e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -96,7 +96,8 @@
 
 /* Use the maximum between 16384 and a single page */
 #define MLX4_EN_ALLOC_SIZE	PAGE_ALIGN(16384)
-#define MLX4_EN_ALLOC_ORDER	get_order(MLX4_EN_ALLOC_SIZE)
+
+#define MLX4_EN_ALLOC_PREFER_ORDER	PAGE_ALLOC_COSTLY_ORDER
 
 /* Receive fragment sizes; we use at most 3 fragments (for 9600 byte MTU
  * and 4K allocations) */
@@ -234,9 +235,10 @@ struct mlx4_en_tx_desc {
 #define MLX4_EN_CX3_HIGH_ID	0x1005
 
 struct mlx4_en_rx_alloc {
-	struct page *page;
-	dma_addr_t dma;
-	u16 offset;
+	struct page	*page;
+	dma_addr_t	dma;
+	u32		offset;
+	u32		size;
 };
 
 struct mlx4_en_tx_ring {
@@ -439,8 +441,6 @@ struct mlx4_en_frag_info {
 	u16 frag_prefix_size;
 	u16 frag_stride;
 	u16 frag_align;
-	u16 last_offset;
-
 };
 
 #ifdef CONFIG_MLX4_EN_DCB
-- 
cgit v0.10.2


From b7b1bfce0bb68bd8f6e62a28295922785cc63781 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sun, 23 Jun 2013 18:39:01 +0200
Subject: ipv6: split duplicate address detection and router solicitation timer

This patch splits the timers for duplicate address detection and router
solicitations apart. The router solicitations timer goes into inet6_dev
and the dad timer stays in inet6_ifaddr.

The reason behind this patch is to reduce the number of unneeded router
solicitations send out by the host if additional link-local addresses
are created. Currently we send out RS for every link-local address on
an interface.

If the RS timer fires we pick a source address with ipv6_get_lladdr. This
change could hurt people adding additional link-local addresses and
specifying these addresses in the radvd clients section because we
no longer guarantee that we use every ll address as source address in
router solicitations.

Cc: Flavio Leitner <fleitner@redhat.com>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: David Stevens <dlstevens@us.ibm.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Reviewed-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index e07feb4..e4c5a2d 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -50,7 +50,7 @@ struct inet6_ifaddr {
 
 	int			state;
 
-	__u8			probes;
+	__u8			dad_probes;
 	__u8			flags;
 
 	__u16			scope;
@@ -58,7 +58,7 @@ struct inet6_ifaddr {
 	unsigned long		cstamp;	/* created timestamp */
 	unsigned long		tstamp; /* updated timestamp */
 
-	struct timer_list	timer;
+	struct timer_list	dad_timer;
 
 	struct inet6_dev	*idev;
 	struct rt6_info		*rt;
@@ -195,6 +195,10 @@ struct inet6_dev {
 	struct neigh_parms	*nd_parms;
 	struct ipv6_devconf	cnf;
 	struct ipv6_devstat	stats;
+
+	struct timer_list	rs_timer;
+	__u8			rs_probes;
+
 	unsigned long		tstamp; /* ipv6InterfaceTable update timestamp */
 	struct rcu_head		rcu;
 };
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 90788a1..c06bc76 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -253,37 +253,32 @@ static inline bool addrconf_qdisc_ok(const struct net_device *dev)
 	return !qdisc_tx_is_noop(dev);
 }
 
-static void addrconf_del_timer(struct inet6_ifaddr *ifp)
+static void addrconf_del_rs_timer(struct inet6_dev *idev)
 {
-	if (del_timer(&ifp->timer))
+	if (del_timer(&idev->rs_timer))
+		__in6_dev_put(idev);
+}
+
+static void addrconf_del_dad_timer(struct inet6_ifaddr *ifp)
+{
+	if (del_timer(&ifp->dad_timer))
 		__in6_ifa_put(ifp);
 }
 
-enum addrconf_timer_t {
-	AC_NONE,
-	AC_DAD,
-	AC_RS,
-};
+static void addrconf_mod_rs_timer(struct inet6_dev *idev,
+				  unsigned long when)
+{
+	if (!timer_pending(&idev->rs_timer))
+		in6_dev_hold(idev);
+	mod_timer(&idev->rs_timer, jiffies + when);
+}
 
-static void addrconf_mod_timer(struct inet6_ifaddr *ifp,
-			       enum addrconf_timer_t what,
-			       unsigned long when)
+static void addrconf_mod_dad_timer(struct inet6_ifaddr *ifp,
+				   unsigned long when)
 {
-	if (!del_timer(&ifp->timer))
+	if (!timer_pending(&ifp->dad_timer))
 		in6_ifa_hold(ifp);
-
-	switch (what) {
-	case AC_DAD:
-		ifp->timer.function = addrconf_dad_timer;
-		break;
-	case AC_RS:
-		ifp->timer.function = addrconf_rs_timer;
-		break;
-	default:
-		break;
-	}
-	ifp->timer.expires = jiffies + when;
-	add_timer(&ifp->timer);
+	mod_timer(&ifp->dad_timer, jiffies + when);
 }
 
 static int snmp6_alloc_dev(struct inet6_dev *idev)
@@ -326,6 +321,7 @@ void in6_dev_finish_destroy(struct inet6_dev *idev)
 
 	WARN_ON(!list_empty(&idev->addr_list));
 	WARN_ON(idev->mc_list != NULL);
+	WARN_ON(timer_pending(&idev->rs_timer));
 
 #ifdef NET_REFCNT_DEBUG
 	pr_debug("%s: %s\n", __func__, dev ? dev->name : "NIL");
@@ -357,7 +353,8 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev)
 	rwlock_init(&ndev->lock);
 	ndev->dev = dev;
 	INIT_LIST_HEAD(&ndev->addr_list);
-
+	setup_timer(&ndev->rs_timer, addrconf_rs_timer,
+		    (unsigned long)ndev);
 	memcpy(&ndev->cnf, dev_net(dev)->ipv6.devconf_dflt, sizeof(ndev->cnf));
 	ndev->cnf.mtu6 = dev->mtu;
 	ndev->cnf.sysctl = NULL;
@@ -776,7 +773,7 @@ void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp)
 
 	in6_dev_put(ifp->idev);
 
-	if (del_timer(&ifp->timer))
+	if (del_timer(&ifp->dad_timer))
 		pr_notice("Timer is still running, when freeing ifa=%p\n", ifp);
 
 	if (ifp->state != INET6_IFADDR_STATE_DEAD) {
@@ -869,9 +866,9 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen,
 
 	spin_lock_init(&ifa->lock);
 	spin_lock_init(&ifa->state_lock);
-	init_timer(&ifa->timer);
+	setup_timer(&ifa->dad_timer, addrconf_dad_timer,
+		    (unsigned long)ifa);
 	INIT_HLIST_NODE(&ifa->addr_lst);
-	ifa->timer.data = (unsigned long) ifa;
 	ifa->scope = scope;
 	ifa->prefix_len = pfxlen;
 	ifa->flags = flags | IFA_F_TENTATIVE;
@@ -994,7 +991,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
 	}
 	write_unlock_bh(&idev->lock);
 
-	addrconf_del_timer(ifp);
+	addrconf_del_dad_timer(ifp);
 
 	ipv6_ifa_notify(RTM_DELADDR, ifp);
 
@@ -1447,6 +1444,23 @@ try_nextdev:
 }
 EXPORT_SYMBOL(ipv6_dev_get_saddr);
 
+static int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
+			     unsigned char banned_flags)
+{
+	struct inet6_ifaddr *ifp;
+	int err = -EADDRNOTAVAIL;
+
+	list_for_each_entry(ifp, &idev->addr_list, if_list) {
+		if (ifp->scope == IFA_LINK &&
+		    !(ifp->flags & banned_flags)) {
+			*addr = ifp->addr;
+			err = 0;
+			break;
+		}
+	}
+	return err;
+}
+
 int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
 		    unsigned char banned_flags)
 {
@@ -1456,17 +1470,8 @@ int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
 	rcu_read_lock();
 	idev = __in6_dev_get(dev);
 	if (idev) {
-		struct inet6_ifaddr *ifp;
-
 		read_lock_bh(&idev->lock);
-		list_for_each_entry(ifp, &idev->addr_list, if_list) {
-			if (ifp->scope == IFA_LINK &&
-			    !(ifp->flags & banned_flags)) {
-				*addr = ifp->addr;
-				err = 0;
-				break;
-			}
-		}
+		err = __ipv6_get_lladdr(idev, addr, banned_flags);
 		read_unlock_bh(&idev->lock);
 	}
 	rcu_read_unlock();
@@ -1580,7 +1585,7 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed)
 {
 	if (ifp->flags&IFA_F_PERMANENT) {
 		spin_lock_bh(&ifp->lock);
-		addrconf_del_timer(ifp);
+		addrconf_del_dad_timer(ifp);
 		ifp->flags |= IFA_F_TENTATIVE;
 		if (dad_failed)
 			ifp->flags |= IFA_F_DADFAILED;
@@ -3036,7 +3041,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 		hlist_for_each_entry_rcu(ifa, h, addr_lst) {
 			if (ifa->idev == idev) {
 				hlist_del_init_rcu(&ifa->addr_lst);
-				addrconf_del_timer(ifa);
+				addrconf_del_dad_timer(ifa);
 				goto restart;
 			}
 		}
@@ -3045,6 +3050,8 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 
 	write_lock_bh(&idev->lock);
 
+	addrconf_del_rs_timer(idev);
+
 	/* Step 2: clear flags for stateless addrconf */
 	if (!how)
 		idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
@@ -3074,7 +3081,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 	while (!list_empty(&idev->addr_list)) {
 		ifa = list_first_entry(&idev->addr_list,
 				       struct inet6_ifaddr, if_list);
-		addrconf_del_timer(ifa);
+		addrconf_del_dad_timer(ifa);
 
 		list_del(&ifa->if_list);
 
@@ -3116,10 +3123,10 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 
 static void addrconf_rs_timer(unsigned long data)
 {
-	struct inet6_ifaddr *ifp = (struct inet6_ifaddr *) data;
-	struct inet6_dev *idev = ifp->idev;
+	struct inet6_dev *idev = (struct inet6_dev *)data;
+	struct in6_addr lladdr;
 
-	read_lock(&idev->lock);
+	write_lock(&idev->lock);
 	if (idev->dead || !(idev->if_flags & IF_READY))
 		goto out;
 
@@ -3130,18 +3137,19 @@ static void addrconf_rs_timer(unsigned long data)
 	if (idev->if_flags & IF_RA_RCVD)
 		goto out;
 
-	spin_lock(&ifp->lock);
-	if (ifp->probes++ < idev->cnf.rtr_solicits) {
-		/* The wait after the last probe can be shorter */
-		addrconf_mod_timer(ifp, AC_RS,
-				   (ifp->probes == idev->cnf.rtr_solicits) ?
-				   idev->cnf.rtr_solicit_delay :
-				   idev->cnf.rtr_solicit_interval);
-		spin_unlock(&ifp->lock);
+	if (idev->rs_probes++ < idev->cnf.rtr_solicits) {
+		if (!__ipv6_get_lladdr(idev, &lladdr, IFA_F_TENTATIVE))
+			ndisc_send_rs(idev->dev, &lladdr,
+				      &in6addr_linklocal_allrouters);
+		else
+			goto out;
 
-		ndisc_send_rs(idev->dev, &ifp->addr, &in6addr_linklocal_allrouters);
+		/* The wait after the last probe can be shorter */
+		addrconf_mod_rs_timer(idev, (idev->rs_probes ==
+					     idev->cnf.rtr_solicits) ?
+				      idev->cnf.rtr_solicit_delay :
+				      idev->cnf.rtr_solicit_interval);
 	} else {
-		spin_unlock(&ifp->lock);
 		/*
 		 * Note: we do not support deprecated "all on-link"
 		 * assumption any longer.
@@ -3150,8 +3158,8 @@ static void addrconf_rs_timer(unsigned long data)
 	}
 
 out:
-	read_unlock(&idev->lock);
-	in6_ifa_put(ifp);
+	write_unlock(&idev->lock);
+	in6_dev_put(idev);
 }
 
 /*
@@ -3167,8 +3175,8 @@ static void addrconf_dad_kick(struct inet6_ifaddr *ifp)
 	else
 		rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1);
 
-	ifp->probes = idev->cnf.dad_transmits;
-	addrconf_mod_timer(ifp, AC_DAD, rand_num);
+	ifp->dad_probes = idev->cnf.dad_transmits;
+	addrconf_mod_dad_timer(ifp, rand_num);
 }
 
 static void addrconf_dad_start(struct inet6_ifaddr *ifp)
@@ -3229,40 +3237,40 @@ static void addrconf_dad_timer(unsigned long data)
 	struct inet6_dev *idev = ifp->idev;
 	struct in6_addr mcaddr;
 
-	if (!ifp->probes && addrconf_dad_end(ifp))
+	if (!ifp->dad_probes && addrconf_dad_end(ifp))
 		goto out;
 
-	read_lock(&idev->lock);
+	write_lock(&idev->lock);
 	if (idev->dead || !(idev->if_flags & IF_READY)) {
-		read_unlock(&idev->lock);
+		write_unlock(&idev->lock);
 		goto out;
 	}
 
 	spin_lock(&ifp->lock);
 	if (ifp->state == INET6_IFADDR_STATE_DEAD) {
 		spin_unlock(&ifp->lock);
-		read_unlock(&idev->lock);
+		write_unlock(&idev->lock);
 		goto out;
 	}
 
-	if (ifp->probes == 0) {
+	if (ifp->dad_probes == 0) {
 		/*
 		 * DAD was successful
 		 */
 
 		ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|IFA_F_DADFAILED);
 		spin_unlock(&ifp->lock);
-		read_unlock(&idev->lock);
+		write_unlock(&idev->lock);
 
 		addrconf_dad_completed(ifp);
 
 		goto out;
 	}
 
-	ifp->probes--;
-	addrconf_mod_timer(ifp, AC_DAD, ifp->idev->nd_parms->retrans_time);
+	ifp->dad_probes--;
+	addrconf_mod_dad_timer(ifp, ifp->idev->nd_parms->retrans_time);
 	spin_unlock(&ifp->lock);
-	read_unlock(&idev->lock);
+	write_unlock(&idev->lock);
 
 	/* send a neighbour solicitation for our addr */
 	addrconf_addr_solict_mult(&ifp->addr, &mcaddr);
@@ -3274,6 +3282,9 @@ out:
 static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 {
 	struct net_device *dev = ifp->idev->dev;
+	struct in6_addr lladdr;
+
+	addrconf_del_dad_timer(ifp);
 
 	/*
 	 *	Configure the address for reception. Now it is valid.
@@ -3294,13 +3305,20 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 		 *	[...] as part of DAD [...] there is no need
 		 *	to delay again before sending the first RS
 		 */
-		ndisc_send_rs(ifp->idev->dev, &ifp->addr, &in6addr_linklocal_allrouters);
+		if (!ipv6_get_lladdr(dev, &lladdr, IFA_F_TENTATIVE))
+			ndisc_send_rs(dev, &lladdr,
+				      &in6addr_linklocal_allrouters);
+		else
+			return;
 
-		spin_lock_bh(&ifp->lock);
-		ifp->probes = 1;
+		write_lock_bh(&ifp->idev->lock);
+		spin_lock(&ifp->lock);
+		ifp->idev->rs_probes = 1;
 		ifp->idev->if_flags |= IF_RS_SENT;
-		addrconf_mod_timer(ifp, AC_RS, ifp->idev->cnf.rtr_solicit_interval);
-		spin_unlock_bh(&ifp->lock);
+		addrconf_mod_rs_timer(ifp->idev,
+				      ifp->idev->cnf.rtr_solicit_interval);
+		spin_unlock(&ifp->lock);
+		write_unlock_bh(&ifp->idev->lock);
 	}
 }
 
-- 
cgit v0.10.2


From 876fd05ddbae03166e7037fca957b55bb3be6594 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 24 Jun 2013 00:22:20 +0200
Subject: ipv6: don't disable interface if last ipv6 address is removed

The reason behind this change is that as soon as we delete
the last ipv6 address of an interface we also lose the
/proc/sys/net/ipv6/conf/<interface> directory. This seems to be a
usability problem for me.

I don't see any reason why we should shutdown ipv6 on that interface in
such cases.

Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index c06bc76..e799a88 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2507,12 +2507,6 @@ static int inet6_addr_del(struct net *net, int ifindex, const struct in6_addr *p
 			read_unlock_bh(&idev->lock);
 
 			ipv6_del_addr(ifp);
-
-			/* If the last address is deleted administratively,
-			   disable IPv6 on this interface.
-			 */
-			if (list_empty(&idev->addr_list))
-				addrconf_ifdown(idev->dev, 1);
 			return 0;
 		}
 	}
-- 
cgit v0.10.2


From 2b9651d72d3fc1a9053ae1a323f8407e1f63b436 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 24 Jun 2013 22:03:28 +0200
Subject: ipv6: remove old token ipv6 address as soon as possible

If the tokenized ip address is re-set on an interface we depend on the
arrival of a new router advertisment to call addrconf_verify to clean
up the old address (which valid_lft is now set to 0). Old addresses can
linger around for a longer time if e.g. the source of router advertisments
vanishes.

So, call addrconf_verify immediately after setting the new tokenized
address to get rid of the old tokenized addresses.

Cc: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e799a88..afaf3cd 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4375,6 +4375,7 @@ static int inet6_set_iftoken(struct inet6_dev *idev, struct in6_addr *token)
 	}
 
 	write_unlock_bh(&idev->lock);
+	addrconf_verify(0);
 	return 0;
 }
 
-- 
cgit v0.10.2


From 8850494a33cc67bbf31d2e3ce630d0f4e14efa56 Mon Sep 17 00:00:00 2001
From: Dotan Barak <dotanb@dev.mellanox.com>
Date: Tue, 25 Jun 2013 12:09:29 +0300
Subject: net/mlx4_en: Fix resource leak in error flow

Wrong condition was used when calling iounmap.

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_main.c b/drivers/net/ethernet/mellanox/mlx4/en_main.c
index a5c9df07..a071cda 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_main.c
@@ -310,7 +310,7 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
 err_mr:
 	(void) mlx4_mr_free(dev, &mdev->mr);
 err_map:
-	if (!mdev->uar_map)
+	if (mdev->uar_map)
 		iounmap(mdev->uar_map);
 err_uar:
 	mlx4_uar_free(dev, &mdev->priv_uar);
-- 
cgit v0.10.2


From 6123db2ec529f1d1865298388e129a6aad2fae17 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.com>
Date: Tue, 25 Jun 2013 12:09:30 +0300
Subject: net/mlx4_en: Do not query stats when device port is down

There are no counters allocated to the eth device when the port is down, so
this query is meaningless at that time.

It also leads to querying incorrect counters (since the counter_index is not
valid when the device port is down).

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 7299ada..c0b02d7 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1375,12 +1375,13 @@ static void mlx4_en_do_get_stats(struct work_struct *work)
 
 	mutex_lock(&mdev->state_lock);
 	if (mdev->device_up) {
-		err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
-		if (err)
-			en_dbg(HW, priv, "Could not update stats\n");
+		if (priv->port_up) {
+			err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
+			if (err)
+				en_dbg(HW, priv, "Could not update stats\n");
 
-		if (priv->port_up)
 			mlx4_en_auto_moderation(priv);
+		}
 
 		queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
 	}
-- 
cgit v0.10.2


From 4801ae70d80dc815997e3cb6bca1dfe36d1594fd Mon Sep 17 00:00:00 2001
From: Eugenia Emantayev <eugenia@mellanox.com>
Date: Tue, 25 Jun 2013 12:09:31 +0300
Subject: net/mlx4_en: Move register_netdev() to the end of initialization
 function

To avoid a race between the open function and everything that happens after
register_netdev() move it to be the last operation called.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index c0b02d7..1f0f817 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2323,6 +2323,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 	mdev->pndev[port] = dev;
 
 	netif_carrier_off(dev);
+	mlx4_en_set_default_moderation(priv);
+
 	err = register_netdev(dev);
 	if (err) {
 		en_err(priv, "Netdev registration failed for port %d\n", port);
@@ -2354,7 +2356,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 		en_err(priv, "Failed Initializing port\n");
 		goto out;
 	}
-	mlx4_en_set_default_moderation(priv);
 	queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
 
 	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
-- 
cgit v0.10.2


From 9e19b54554fac0a1c1c92f0a10b29d216b84a470 Mon Sep 17 00:00:00 2001
From: Eugenia Emantayev <eugenia@mellanox.com>
Date: Tue, 25 Jun 2013 12:09:32 +0300
Subject: net/mlx4_en: Change log level from error to debug for vlan related
 messages

The port vlan table size is 126 (used for IBoE) so after 126 we will
not have space and the user need to see it only in debug print and not
error.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Reviewed-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 1f0f817..f256a73 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -405,7 +405,7 @@ static int mlx4_en_vlan_rx_add_vid(struct net_device *dev,
 			en_err(priv, "Failed configuring VLAN filter\n");
 	}
 	if (mlx4_register_vlan(mdev->dev, priv->port, vid, &idx))
-		en_err(priv, "failed adding vlan %d\n", vid);
+		en_dbg(HW, priv, "failed adding vlan %d\n", vid);
 	mutex_unlock(&mdev->state_lock);
 
 	return 0;
@@ -428,7 +428,7 @@ static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev,
 	if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx))
 		mlx4_unregister_vlan(mdev->dev, priv->port, idx);
 	else
-		en_err(priv, "could not find vid %d in cache\n", vid);
+		en_dbg(HW, priv, "could not find vid %d in cache\n", vid);
 
 	if (mdev->device_up && priv->port_up) {
 		err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
-- 
cgit v0.10.2


From 0cc5c8bf11852dec3225fda2f53a599243095d23 Mon Sep 17 00:00:00 2001
From: Eugenia Emantayev <eugenia@mellanox.com>
Date: Tue, 25 Jun 2013 12:09:33 +0300
Subject: net/mlx4_en: Fix a race between napi poll function and RX ring
 cleanup

The RX rings were cleaned while there was still possible RX traffic completion
handling.
Change the sequance of events so that the port is closed and the QPs are being
stopped before RX cleanup.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index f256a73..f1dcddc 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1635,6 +1635,9 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
 		return;
 	}
 
+	/* close port*/
+	mlx4_CLOSE_PORT(mdev->dev, priv->port);
+
 	/* Synchronize with tx routine */
 	netif_tx_lock_bh(dev);
 	if (detach)
@@ -1735,14 +1738,11 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
 		}
 		local_bh_enable();
 
-		mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
 		while (test_bit(NAPI_STATE_SCHED, &cq->napi.state))
 			msleep(1);
+		mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
 		mlx4_en_deactivate_cq(priv, cq);
 	}
-
-	/* close port*/
-	mlx4_CLOSE_PORT(mdev->dev, priv->port);
 }
 
 static void mlx4_en_restart(struct work_struct *work)
-- 
cgit v0.10.2


From b944ebec787be9396978b0f7773f99e751330196 Mon Sep 17 00:00:00 2001
From: Yevgeny Petrilin <yevgenyp@mellanox.com>
Date: Tue, 25 Jun 2013 12:09:34 +0300
Subject: net/mlx4_en: Add prints when TX timeout occurs

Print a warning when a TX timeout is detected

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index f1dcddc..caf2047 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1236,10 +1236,19 @@ static void mlx4_en_tx_timeout(struct net_device *dev)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
+	int i;
 
 	if (netif_msg_timer(priv))
 		en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
 
+	for (i = 0; i < priv->tx_ring_num; i++) {
+		if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)))
+			continue;
+		en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
+			i, priv->tx_ring[i].qpn, priv->tx_ring[i].cqn,
+			priv->tx_ring[i].cons, priv->tx_ring[i].prod);
+	}
+
 	priv->port_stats.tx_timeout++;
 	en_dbg(DRV, priv, "Scheduling watchdog\n");
 	queue_work(mdev->workqueue, &priv->watchdog_task);
-- 
cgit v0.10.2


From 42f1e9020e22d64d18292c6cb9182f4beeb43cad Mon Sep 17 00:00:00 2001
From: Dotan Barak <dotanb@dev.mellanox.com>
Date: Tue, 25 Jun 2013 12:09:35 +0300
Subject: net/mlx4_en: Remove an unnecessary test

Since this variable is now part of a structure and not allocated dynamically,
this test is irrelevant now.

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c b/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
index 0f91222..9d4a1ea 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_dcb_nl.c
@@ -207,9 +207,6 @@ static int mlx4_en_dcbnl_ieee_getmaxrate(struct net_device *dev,
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	int i;
 
-	if (!priv->maxrate)
-		return -EINVAL;
-
 	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
 		maxrate->tc_maxrate[i] =
 			priv->maxrate[i] * MLX4_RATELIMIT_UNITS_IN_KB;
-- 
cgit v0.10.2


From 618fad954b9becf095f1b52391af29f743ff4662 Mon Sep 17 00:00:00 2001
From: Dotan Barak <dotanb@dev.mellanox.com>
Date: Tue, 25 Jun 2013 12:09:36 +0300
Subject: net/mlx4_core: Replace sscanf() with kstrtoint()

It is not safe to use sscanf.

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.com>
Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 2f4a260..81e4529 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -839,11 +839,11 @@ static ssize_t set_port_ib_mtu(struct device *dev,
 		return -EINVAL;
 	}
 
-	err = sscanf(buf, "%d", &mtu);
-	if (err > 0)
+	err = kstrtoint(buf, 0, &mtu);
+	if (!err)
 		ibta_mtu = int_to_ibta_mtu(mtu);
 
-	if (err <= 0 || ibta_mtu < 0) {
+	if (err || ibta_mtu < 0) {
 		mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
 		return -EINVAL;
 	}
-- 
cgit v0.10.2


From 674925edb466b027d7c61993ebe3250fb8989ee0 Mon Sep 17 00:00:00 2001
From: Dotan Barak <dotanb@dev.mellanox.com>
Date: Tue, 25 Jun 2013 12:09:37 +0300
Subject: net/mlx4_core: Add warning in case of command timeouts

Warning prints when there are command timeout to help debugging future
failures.

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index ea1e038..df04c82 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -257,6 +257,8 @@ static int mlx4_comm_cmd_wait(struct mlx4_dev *dev, u8 op,
 
 	if (!wait_for_completion_timeout(&context->done,
 					 msecs_to_jiffies(timeout))) {
+		mlx4_warn(dev, "communication channel command 0x%x timed out\n",
+			  op);
 		err = -EBUSY;
 		goto out;
 	}
@@ -486,6 +488,8 @@ static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 	}
 
 	if (cmd_pending(dev)) {
+		mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n",
+			  op);
 		err = -ETIMEDOUT;
 		goto out;
 	}
@@ -549,6 +553,8 @@ static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
 
 	if (!wait_for_completion_timeout(&context->done,
 					 msecs_to_jiffies(timeout))) {
+		mlx4_warn(dev, "command 0x%x timed out (go bit not cleared)\n",
+			  op);
 		err = -EBUSY;
 		goto out;
 	}
-- 
cgit v0.10.2


From 30e514a71753ac3fd0ddea1411d5602ccbe14acf Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.com>
Date: Tue, 25 Jun 2013 12:09:38 +0300
Subject: net/mlx4_core: Fail device init if num_vfs is negative

Should not allow negative num_vfs

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.com>
Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 81e4529..56160a2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2077,6 +2077,11 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
 		       num_vfs, MLX4_MAX_NUM_VF);
 		return -EINVAL;
 	}
+
+	if (num_vfs < 0) {
+		pr_err("num_vfs module parameter cannot be negative\n");
+		return -EINVAL;
+	}
 	/*
 	 * Check for BARs.
 	 */
-- 
cgit v0.10.2


From f072d7aba79c73c3bb4ff1a9b58be5525d755d27 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 25 Jun 2013 18:17:25 +0200
Subject: net: sctp: remove TEST_FRAME ifdef

We do neither ship a test_frame.h, nor will this be compatible with
the 2.5 out-of-tree lksctp kernel test suite anyway. So remove this
artefact.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 6321c08..15214a8 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -188,11 +188,6 @@ extern struct kmem_cache *sctp_bucket_cachep __read_mostly;
  *  Section:  Macros, externs, and inlines
  */
 
-
-#ifdef TEST_FRAME
-#include <test_frame.h>
-#else
-
 /* spin lock wrappers. */
 #define sctp_spin_lock_irqsave(lock, flags) spin_lock_irqsave(lock, flags)
 #define sctp_spin_unlock_irqrestore(lock, flags)  \
@@ -218,8 +213,6 @@ extern struct kmem_cache *sctp_bucket_cachep __read_mostly;
 #define SCTP_INC_STATS_USER(net, field) SNMP_INC_STATS_USER((net)->sctp.sctp_statistics, field)
 #define SCTP_DEC_STATS(net, field)      SNMP_DEC_STATS((net)->sctp.sctp_statistics, field)
 
-#endif /* !TEST_FRAME */
-
 /* sctp mib definitions */
 enum {
 	SCTP_MIB_NUM = 0,
-- 
cgit v0.10.2


From d36f82b2435690d8742235d7bdc5bb5e878077e3 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 25 Jun 2013 18:17:26 +0200
Subject: ktime: add ms_to_ktime() and ktime_add_ms() helpers

Add two ktime helper functions that i) convert a given msec value to
a ktime structure and ii) that adds a msec value to a ktime structure.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index bbca128..b4fa5e4 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -323,6 +323,11 @@ static inline ktime_t ktime_add_us(const ktime_t kt, const u64 usec)
 	return ktime_add_ns(kt, usec * 1000);
 }
 
+static inline ktime_t ktime_add_ms(const ktime_t kt, const u64 msec)
+{
+	return ktime_add_ns(kt, msec * NSEC_PER_MSEC);
+}
+
 static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec)
 {
 	return ktime_sub_ns(kt, usec * 1000);
@@ -366,7 +371,15 @@ extern void ktime_get_ts(struct timespec *ts);
 static inline ktime_t ns_to_ktime(u64 ns)
 {
 	static const ktime_t ktime_zero = { .tv64 = 0 };
+
 	return ktime_add_ns(ktime_zero, ns);
 }
 
+static inline ktime_t ms_to_ktime(u64 ms)
+{
+	static const ktime_t ktime_zero = { .tv64 = 0 };
+
+	return ktime_add_ms(ktime_zero, ms);
+}
+
 #endif
-- 
cgit v0.10.2


From 52db882f3fc2903014e638ee91e690085fe37fdb Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 25 Jun 2013 18:17:27 +0200
Subject: net: sctp: migrate cookie life from timeval to ktime

Currently, SCTP code defines its own timeval functions (since timeval
is rarely used inside the kernel by others), namely tv_lt() and
TIMEVAL_ADD() macros, that operate on SCTP cookie expiration.

We might as well remove all those, and operate directly on ktime
structures for a couple of reasons: ktime is available on all archs;
complexity of ktime calculations depending on the arch is less than
(reduces to a simple arithmetic operations on archs with
BITS_PER_LONG == 64 or CONFIG_KTIME_SCALAR) or equal to timeval
functions (other archs); code becomes more readable; macros can be
thrown out.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 15214a8..e6b95bc 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -560,24 +560,6 @@ for (pos = chunk->subh.fwdtsn_hdr->skip;\
 /* Round an int up to the next multiple of 4.  */
 #define WORD_ROUND(s) (((s)+3)&~3)
 
-/* Compare two timevals.  */
-#define tv_lt(s, t) \
-   (s.tv_sec < t.tv_sec || (s.tv_sec == t.tv_sec && s.tv_usec < t.tv_usec))
-
-/* Add tv1 to tv2. */
-#define TIMEVAL_ADD(tv1, tv2) \
-({ \
-        suseconds_t usecs = (tv2).tv_usec + (tv1).tv_usec; \
-        time_t secs = (tv2).tv_sec + (tv1).tv_sec; \
-\
-        if (usecs >= 1000000) { \
-                usecs -= 1000000; \
-                secs++; \
-        } \
-        (tv2).tv_sec = secs; \
-        (tv2).tv_usec = usecs; \
-})
-
 /* External references. */
 
 extern struct proto sctp_prot;
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 1bd4c41..e745c92 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -54,7 +54,7 @@
 #ifndef __sctp_structs_h__
 #define __sctp_structs_h__
 
-#include <linux/time.h>		/* We get struct timespec.    */
+#include <linux/ktime.h>
 #include <linux/socket.h>	/* linux/in.h needs this!!    */
 #include <linux/in.h>		/* We get struct sockaddr_in. */
 #include <linux/in6.h>		/* We get struct in6_addr     */
@@ -284,7 +284,7 @@ struct sctp_cookie {
 	__u32 peer_ttag;
 
 	/* When does this cookie expire? */
-	struct timeval expiration;
+	ktime_t expiration;
 
 	/* Number of inbound/outbound streams which are set
 	 * and negotiated during the INIT process.
@@ -1537,7 +1537,7 @@ struct sctp_association {
 	sctp_state_t state;
 
 	/* The cookie life I award for any cookie.  */
-	struct timeval cookie_life;
+	ktime_t cookie_life;
 
 	/* Overall     : The overall association error count.
 	 * Error Count : [Clear this any time I get something.]
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index bf6e6bd..9a383a8 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -102,13 +102,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a
 	sctp_bind_addr_init(&asoc->base.bind_addr, ep->base.bind_addr.port);
 
 	asoc->state = SCTP_STATE_CLOSED;
-
-	/* Set these values from the socket values, a conversion between
-	 * millsecons to seconds/microseconds must also be done.
-	 */
-	asoc->cookie_life.tv_sec = sp->assocparams.sasoc_cookie_life / 1000;
-	asoc->cookie_life.tv_usec = (sp->assocparams.sasoc_cookie_life % 1000)
-					* 1000;
+	asoc->cookie_life = ms_to_ktime(sp->assocparams.sasoc_cookie_life);
 	asoc->frag_point = 0;
 	asoc->user_frag = sp->user_frag;
 
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index fc85487..dd71f1f 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1630,8 +1630,8 @@ static sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
 	cookie->c.adaptation_ind = asoc->peer.adaptation_ind;
 
 	/* Set an expiration time for the cookie.  */
-	do_gettimeofday(&cookie->c.expiration);
-	TIMEVAL_ADD(asoc->cookie_life, cookie->c.expiration);
+	cookie->c.expiration = ktime_add(asoc->cookie_life,
+					 ktime_get());
 
 	/* Copy the peer's init packet.  */
 	memcpy(&cookie->c.peer_init[0], init_chunk->chunk_hdr,
@@ -1680,7 +1680,7 @@ struct sctp_association *sctp_unpack_cookie(
 	unsigned int len;
 	sctp_scope_t scope;
 	struct sk_buff *skb = chunk->skb;
-	struct timeval tv;
+	ktime_t kt;
 	struct hash_desc desc;
 
 	/* Header size is static data prior to the actual cookie, including
@@ -1757,11 +1757,11 @@ no_hmac:
 	 * down the new association establishment instead of every packet.
 	 */
 	if (sock_flag(ep->base.sk, SOCK_TIMESTAMP))
-		skb_get_timestamp(skb, &tv);
+		kt = skb_get_ktime(skb);
 	else
-		do_gettimeofday(&tv);
+		kt = ktime_get();
 
-	if (!asoc && tv_lt(bear_cookie->expiration, tv)) {
+	if (!asoc && ktime_compare(bear_cookie->expiration, kt) < 0) {
 		/*
 		 * Section 3.3.10.3 Stale Cookie Error (3)
 		 *
@@ -1773,9 +1773,7 @@ no_hmac:
 		len = ntohs(chunk->chunk_hdr->length);
 		*errp = sctp_make_op_error_space(asoc, chunk, len);
 		if (*errp) {
-			suseconds_t usecs = (tv.tv_sec -
-				bear_cookie->expiration.tv_sec) * 1000000L +
-				tv.tv_usec - bear_cookie->expiration.tv_usec;
+			suseconds_t usecs = ktime_to_us(ktime_sub(kt, bear_cookie->expiration));
 			__be32 n = htonl(usecs);
 
 			sctp_init_cause(*errp, SCTP_ERROR_STALE_COOKIE,
@@ -2514,8 +2512,7 @@ do_addr_param:
 		/* Suggested Cookie Life span increment's unit is msec,
 		 * (1/1000sec).
 		 */
-		asoc->cookie_life.tv_sec += stale / 1000;
-		asoc->cookie_life.tv_usec += (stale % 1000) * 1000;
+		asoc->cookie_life = ktime_add_ms(asoc->cookie_life, stale);
 		break;
 
 	case SCTP_PARAM_HOST_NAME_ADDRESS:
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 32db19b..4c47e55 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2910,13 +2910,8 @@ static int sctp_setsockopt_associnfo(struct sock *sk, char __user *optval, unsig
 			asoc->max_retrans = assocparams.sasoc_asocmaxrxt;
 		}
 
-		if (assocparams.sasoc_cookie_life != 0) {
-			asoc->cookie_life.tv_sec =
-					assocparams.sasoc_cookie_life / 1000;
-			asoc->cookie_life.tv_usec =
-					(assocparams.sasoc_cookie_life % 1000)
-					* 1000;
-		}
+		if (assocparams.sasoc_cookie_life != 0)
+			asoc->cookie_life = ms_to_ktime(assocparams.sasoc_cookie_life);
 	} else {
 		/* Set the values to the endpoint */
 		struct sctp_sock *sp = sctp_sk(sk);
@@ -5074,10 +5069,7 @@ static int sctp_getsockopt_associnfo(struct sock *sk, int len,
 		assocparams.sasoc_asocmaxrxt = asoc->max_retrans;
 		assocparams.sasoc_peer_rwnd = asoc->peer.rwnd;
 		assocparams.sasoc_local_rwnd = asoc->a_rwnd;
-		assocparams.sasoc_cookie_life = (asoc->cookie_life.tv_sec
-						* 1000) +
-						(asoc->cookie_life.tv_usec
-						/ 1000);
+		assocparams.sasoc_cookie_life = ktime_to_ms(asoc->cookie_life);
 
 		list_for_each(pos, &asoc->peer.transport_addr_list) {
 			cnt ++;
-- 
cgit v0.10.2


From b527fe693304d244b6103dc9f8a87150e71c29f7 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 25 Jun 2013 18:17:28 +0200
Subject: net: sctp: minor: sctp_seq_dump_local_addrs add missing newline

A trailing newline has been forgotten to add into the WARN().

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index 0c83162..62526c4 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -138,7 +138,7 @@ static void sctp_seq_dump_local_addrs(struct seq_file *seq, struct sctp_ep_commo
 
 		peer = asoc->peer.primary_path;
 		if (unlikely(peer == NULL)) {
-			WARN(1, "Association %p with NULL primary path!", asoc);
+			WARN(1, "Association %p with NULL primary path!\n", asoc);
 			return;
 		}
 
-- 
cgit v0.10.2


From 0a2fbac197441ebeafbbef09d4bbc0b5e73716d7 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 25 Jun 2013 18:17:29 +0200
Subject: net: sctp: decouple cleaning some socket data from endpoint

Rather instead of having the endpoint clean the garbage from the
socket, use a sk_destruct handler sctp_destruct_sock(), that does
the job for that when there are no more references on the socket.
At least do this for our crypto transform through crypto_free_hash()
that is allocated when in listening state.

Also, perform sctp_put_port() only when sk is valid. At a later
point in time we can still determine if there's an option of
placing this into sk_prot->unhash() or sctp_endpoint_free() without
any races. For now, leave it in sctp_endpoint_destroy() though.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index a8b2674..b26999d 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -247,10 +247,9 @@ void sctp_endpoint_free(struct sctp_endpoint *ep)
 /* Final destructor for endpoint.  */
 static void sctp_endpoint_destroy(struct sctp_endpoint *ep)
 {
-	SCTP_ASSERT(ep->base.dead, "Endpoint is not dead", return);
+	struct sock *sk;
 
-	/* Free up the HMAC transform. */
-	crypto_free_hash(sctp_sk(ep->base.sk)->hmac);
+	SCTP_ASSERT(ep->base.dead, "Endpoint is not dead", return);
 
 	/* Free the digest buffer */
 	kfree(ep->digest);
@@ -271,13 +270,15 @@ static void sctp_endpoint_destroy(struct sctp_endpoint *ep)
 
 	memset(ep->secret_key, 0, sizeof(ep->secret_key));
 
-	/* Remove and free the port */
-	if (sctp_sk(ep->base.sk)->bind_hash)
-		sctp_put_port(ep->base.sk);
-
 	/* Give up our hold on the sock. */
-	if (ep->base.sk)
-		sock_put(ep->base.sk);
+	sk = ep->base.sk;
+	if (sk != NULL) {
+		/* Remove and free the port */
+		if (sctp_sk(sk)->bind_hash)
+			sctp_put_port(sk);
+
+		sock_put(sk);
+	}
 
 	kfree(ep);
 	SCTP_DBG_OBJCNT_DEC(ep);
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 4c47e55..ba9359c 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -93,6 +93,7 @@ static int sctp_wait_for_packet(struct sock * sk, int *err, long *timeo_p);
 static int sctp_wait_for_connect(struct sctp_association *, long *timeo_p);
 static int sctp_wait_for_accept(struct sock *sk, long timeo);
 static void sctp_wait_for_close(struct sock *sk, long timeo);
+static void sctp_destruct_sock(struct sock *sk);
 static struct sctp_af *sctp_sockaddr_af(struct sctp_sock *opt,
 					union sctp_addr *addr, int len);
 static int sctp_bindx_add(struct sock *, struct sockaddr *, int);
@@ -3966,6 +3967,8 @@ static int sctp_init_sock(struct sock *sk)
 
 	sp->hmac = NULL;
 
+	sk->sk_destruct = sctp_destruct_sock;
+
 	SCTP_DBG_OBJCNT_INC(sock);
 
 	local_bh_disable();
@@ -4008,6 +4011,17 @@ static void sctp_destroy_sock(struct sock *sk)
 	local_bh_enable();
 }
 
+/* Triggered when there are no references on the socket anymore */
+static void sctp_destruct_sock(struct sock *sk)
+{
+	struct sctp_sock *sp = sctp_sk(sk);
+
+	/* Free up the HMAC transform. */
+	crypto_free_hash(sp->hmac);
+
+	inet_sock_destruct(sk);
+}
+
 /* API 4.1.7 shutdown() - TCP Style Syntax
  *     int shutdown(int socket, int how);
  *
@@ -6848,7 +6862,7 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk,
 	newsk->sk_reuse = sk->sk_reuse;
 
 	newsk->sk_shutdown = sk->sk_shutdown;
-	newsk->sk_destruct = inet_sock_destruct;
+	newsk->sk_destruct = sctp_destruct_sock;
 	newsk->sk_family = sk->sk_family;
 	newsk->sk_protocol = IPPROTO_SCTP;
 	newsk->sk_backlog_rcv = sk->sk_prot->backlog_rcv;
-- 
cgit v0.10.2


From 62208f12451f723cd9e9f1d6d22866a61545e488 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 25 Jun 2013 18:17:30 +0200
Subject: net: sctp: simplify sctp_get_port

No need to have an extra ret variable when we directly can return
the value of sctp_get_port_local().

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index ba9359c..66fcdcf 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6036,7 +6036,6 @@ fail:
  */
 static int sctp_get_port(struct sock *sk, unsigned short snum)
 {
-	long ret;
 	union sctp_addr addr;
 	struct sctp_af *af = sctp_sk(sk)->pf->af;
 
@@ -6045,9 +6044,7 @@ static int sctp_get_port(struct sock *sk, unsigned short snum)
 	addr.v4.sin_port = htons(snum);
 
 	/* Note: sk->sk_num gets filled in if ephemeral port request. */
-	ret = sctp_get_port_local(sk, &addr);
-
-	return ret ? 1 : 0;
+	return !!sctp_get_port_local(sk, &addr);
 }
 
 /*
-- 
cgit v0.10.2


From e4f2379db6c6823c5d4a4c2c912df00c65de51d7 Mon Sep 17 00:00:00 2001
From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Date: Mon, 24 Jun 2013 09:54:27 +0400
Subject: ethernet/arc/arc_emac - Add new driver

Driver for non-standard on-chip ethernet device ARC EMAC 10/100,
instantiated in some legacy ARC (Synopsys) FPGA Boards such as
ARCAngel4/ML50x.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: Joe Perches <joe@perches.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Mischa Jonker <mjonker@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-kernel@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Florian Fainelli <florian@openwrt.org>
Cc: David Laight <david.laight@aculab.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/arc_emac.txt b/Documentation/devicetree/bindings/net/arc_emac.txt
new file mode 100644
index 0000000..bcbc3f0
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/arc_emac.txt
@@ -0,0 +1,38 @@
+* Synopsys ARC EMAC 10/100 Ethernet driver (EMAC)
+
+Required properties:
+- compatible: Should be "snps,arc-emac"
+- reg: Address and length of the register set for the device
+- interrupts: Should contain the EMAC interrupts
+- clock-frequency: CPU frequency. It is needed to calculate and set polling
+period of EMAC.
+- max-speed: Maximum supported data-rate in Mbit/s. In some HW configurations
+bandwidth of external memory controller might be a limiting factor. That's why
+it's required to specify which data-rate is supported on current SoC or FPGA.
+For example if only 10 Mbit/s is supported (10BASE-T) set "10". If 100 Mbit/s is
+supported (100BASE-TX) set "100".
+- phy: PHY device attached to the EMAC via MDIO bus
+
+Child nodes of the driver are the individual PHY devices connected to the
+MDIO bus. They must have a "reg" property given the PHY address on the MDIO bus.
+
+Optional properties:
+- mac-address: 6 bytes, mac address
+
+Examples:
+
+	ethernet@c0fc2000 {
+		compatible = "snps,arc-emac";
+		reg = <0xc0fc2000 0x3c>;
+		interrupts = <6>;
+		mac-address = [ 00 11 22 33 44 55 ];
+		clock-frequency = <80000000>;
+		max-speed = <100>;
+		phy = <&phy0>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+		phy0: ethernet-phy@0 {
+			reg = <1>;
+		};
+	};
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index a989669..2037080 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -24,6 +24,7 @@ source "drivers/net/ethernet/allwinner/Kconfig"
 source "drivers/net/ethernet/alteon/Kconfig"
 source "drivers/net/ethernet/amd/Kconfig"
 source "drivers/net/ethernet/apple/Kconfig"
+source "drivers/net/ethernet/arc/Kconfig"
 source "drivers/net/ethernet/atheros/Kconfig"
 source "drivers/net/ethernet/cadence/Kconfig"
 source "drivers/net/ethernet/adi/Kconfig"
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index 009da27..390bd0b 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_NET_VENDOR_ALLWINNER) += allwinner/
 obj-$(CONFIG_NET_VENDOR_ALTEON) += alteon/
 obj-$(CONFIG_NET_VENDOR_AMD) += amd/
 obj-$(CONFIG_NET_VENDOR_APPLE) += apple/
+obj-$(CONFIG_NET_VENDOR_ARC) += arc/
 obj-$(CONFIG_NET_VENDOR_ATHEROS) += atheros/
 obj-$(CONFIG_NET_CADENCE) += cadence/
 obj-$(CONFIG_NET_BFIN) += adi/
diff --git a/drivers/net/ethernet/arc/Kconfig b/drivers/net/ethernet/arc/Kconfig
new file mode 100644
index 0000000..514c57f
--- /dev/null
+++ b/drivers/net/ethernet/arc/Kconfig
@@ -0,0 +1,31 @@
+#
+# ARC EMAC network device configuration
+#
+
+config NET_VENDOR_ARC
+	bool "ARC devices"
+	default y
+	---help---
+	  If you have a network (Ethernet) card belonging to this class, say Y
+	  and read the Ethernet-HOWTO, available from
+	  <http://www.tldp.org/docs.html#howto>.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about ARC cards. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if NET_VENDOR_ARC
+
+config ARC_EMAC
+	tristate "ARC EMAC support"
+	select MII
+	select PHYLIB
+	depends on OF_IRQ
+	depends on OF_NET
+	---help---
+	  On some legacy ARC (Synopsys) FPGA boards such as ARCAngel4/ML50x
+	  non-standard on-chip ethernet device ARC EMAC 10/100 is used.
+	  Say Y here if you have such a board.  If unsure, say N.
+
+endif # NET_VENDOR_ARC
diff --git a/drivers/net/ethernet/arc/Makefile b/drivers/net/ethernet/arc/Makefile
new file mode 100644
index 0000000..00c8657
--- /dev/null
+++ b/drivers/net/ethernet/arc/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for the ARC network device drivers.
+#
+
+arc_emac-objs := emac_main.o emac_mdio.o
+obj-$(CONFIG_ARC_EMAC) += arc_emac.o
diff --git a/drivers/net/ethernet/arc/emac.h b/drivers/net/ethernet/arc/emac.h
new file mode 100644
index 0000000..dc08678
--- /dev/null
+++ b/drivers/net/ethernet/arc/emac.h
@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2004-2013 Synopsys, Inc. (www.synopsys.com)
+ *
+ * Registers and bits definitions of ARC EMAC
+ */
+
+#ifndef ARC_EMAC_H
+#define ARC_EMAC_H
+
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+
+/* STATUS and ENABLE Register bit masks */
+#define TXINT_MASK	(1<<0)	/* Transmit interrupt */
+#define RXINT_MASK	(1<<1)	/* Receive interrupt */
+#define ERR_MASK	(1<<2)	/* Error interrupt */
+#define TXCH_MASK	(1<<3)	/* Transmit chaining error interrupt */
+#define MSER_MASK	(1<<4)	/* Missed packet counter error */
+#define RXCR_MASK	(1<<8)	/* RXCRCERR counter rolled over  */
+#define RXFR_MASK	(1<<9)	/* RXFRAMEERR counter rolled over */
+#define RXFL_MASK	(1<<10)	/* RXOFLOWERR counter rolled over */
+#define MDIO_MASK	(1<<12)	/* MDIO complete interrupt */
+#define TXPL_MASK	(1<<31)	/* Force polling of BD by EMAC */
+
+/* CONTROL Register bit masks */
+#define EN_MASK		(1<<0)	/* VMAC enable */
+#define TXRN_MASK	(1<<3)	/* TX enable */
+#define RXRN_MASK	(1<<4)	/* RX enable */
+#define DSBC_MASK	(1<<8)	/* Disable receive broadcast */
+#define ENFL_MASK	(1<<10)	/* Enable Full-duplex */
+#define PROM_MASK	(1<<11)	/* Promiscuous mode */
+
+/* Buffer descriptor INFO bit masks */
+#define OWN_MASK	(1<<31)	/* 0-CPU owns buffer, 1-EMAC owns buffer */
+#define FIRST_MASK	(1<<16)	/* First buffer in chain */
+#define LAST_MASK	(1<<17)	/* Last buffer in chain */
+#define LEN_MASK	0x000007FF	/* last 11 bits */
+#define CRLS		(1<<21)
+#define DEFR		(1<<22)
+#define DROP		(1<<23)
+#define RTRY		(1<<24)
+#define LTCL		(1<<28)
+#define UFLO		(1<<29)
+
+#define FOR_EMAC	OWN_MASK
+#define FOR_CPU		0
+
+/* ARC EMAC register set combines entries for MAC and MDIO */
+enum {
+	R_ID = 0,
+	R_STATUS,
+	R_ENABLE,
+	R_CTRL,
+	R_POLLRATE,
+	R_RXERR,
+	R_MISS,
+	R_TX_RING,
+	R_RX_RING,
+	R_ADDRL,
+	R_ADDRH,
+	R_LAFL,
+	R_LAFH,
+	R_MDIO,
+};
+
+#define TX_TIMEOUT		(400*HZ/1000)	/* Transmission timeout */
+
+#define ARC_EMAC_NAPI_WEIGHT	40		/* Workload for NAPI */
+
+#define EMAC_BUFFER_SIZE	1536		/* EMAC buffer size */
+
+/**
+ * struct arc_emac_bd - EMAC buffer descriptor (BD).
+ *
+ * @info:	Contains status information on the buffer itself.
+ * @data:	32-bit byte addressable pointer to the packet data.
+ */
+struct arc_emac_bd {
+	__le32 info;
+	dma_addr_t data;
+};
+
+/* Number of Rx/Tx BD's */
+#define RX_BD_NUM	128
+#define TX_BD_NUM	128
+
+#define RX_RING_SZ	(RX_BD_NUM * sizeof(struct arc_emac_bd))
+#define TX_RING_SZ	(TX_BD_NUM * sizeof(struct arc_emac_bd))
+
+/**
+ * struct buffer_state - Stores Rx/Tx buffer state.
+ * @sk_buff:	Pointer to socket buffer.
+ * @addr:	Start address of DMA-mapped memory region.
+ * @len:	Length of DMA-mapped memory region.
+ */
+struct buffer_state {
+	struct sk_buff *skb;
+	DEFINE_DMA_UNMAP_ADDR(addr);
+	DEFINE_DMA_UNMAP_LEN(len);
+};
+
+/**
+ * struct arc_emac_priv - Storage of EMAC's private information.
+ * @dev:	Pointer to the current device.
+ * @ndev:	Pointer to the current network device.
+ * @phy_dev:	Pointer to attached PHY device.
+ * @bus:	Pointer to the current MII bus.
+ * @regs:	Base address of EMAC memory-mapped control registers.
+ * @napi:	Structure for NAPI.
+ * @stats:	Network device statistics.
+ * @rxbd:	Pointer to Rx BD ring.
+ * @txbd:	Pointer to Tx BD ring.
+ * @rxbd_dma:	DMA handle for Rx BD ring.
+ * @txbd_dma:	DMA handle for Tx BD ring.
+ * @rx_buff:	Storage for Rx buffers states.
+ * @tx_buff:	Storage for Tx buffers states.
+ * @txbd_curr:	Index of Tx BD to use on the next "ndo_start_xmit".
+ * @txbd_dirty:	Index of Tx BD to free on the next Tx interrupt.
+ * @last_rx_bd:	Index of the last Rx BD we've got from EMAC.
+ * @link:	PHY's last seen link state.
+ * @duplex:	PHY's last set duplex mode.
+ * @speed:	PHY's last set speed.
+ * @max_speed:	Maximum supported by current system network data-rate.
+ */
+struct arc_emac_priv {
+	/* Devices */
+	struct device *dev;
+	struct net_device *ndev;
+	struct phy_device *phy_dev;
+	struct mii_bus *bus;
+
+	void __iomem *regs;
+
+	struct napi_struct napi;
+	struct net_device_stats stats;
+
+	struct arc_emac_bd *rxbd;
+	struct arc_emac_bd *txbd;
+
+	dma_addr_t rxbd_dma;
+	dma_addr_t txbd_dma;
+
+	struct buffer_state rx_buff[RX_BD_NUM];
+	struct buffer_state tx_buff[TX_BD_NUM];
+	unsigned int txbd_curr;
+	unsigned int txbd_dirty;
+
+	unsigned int last_rx_bd;
+
+	unsigned int link;
+	unsigned int duplex;
+	unsigned int speed;
+	unsigned int max_speed;
+};
+
+/**
+ * arc_reg_set - Sets EMAC register with provided value.
+ * @priv:	Pointer to ARC EMAC private data structure.
+ * @reg:	Register offset from base address.
+ * @value:	Value to set in register.
+ */
+static inline void arc_reg_set(struct arc_emac_priv *priv, int reg, int value)
+{
+	iowrite32(value, priv->regs + reg * sizeof(int));
+}
+
+/**
+ * arc_reg_get - Gets value of specified EMAC register.
+ * @priv:	Pointer to ARC EMAC private data structure.
+ * @reg:	Register offset from base address.
+ *
+ * returns:	Value of requested register.
+ */
+static inline unsigned int arc_reg_get(struct arc_emac_priv *priv, int reg)
+{
+	return ioread32(priv->regs + reg * sizeof(int));
+}
+
+/**
+ * arc_reg_or - Applies mask to specified EMAC register - ("reg" | "mask").
+ * @priv:	Pointer to ARC EMAC private data structure.
+ * @reg:	Register offset from base address.
+ * @mask:	Mask to apply to specified register.
+ *
+ * This function reads initial register value, then applies provided mask
+ * to it and then writes register back.
+ */
+static inline void arc_reg_or(struct arc_emac_priv *priv, int reg, int mask)
+{
+	unsigned int value = arc_reg_get(priv, reg);
+	arc_reg_set(priv, reg, value | mask);
+}
+
+/**
+ * arc_reg_clr - Applies mask to specified EMAC register - ("reg" & ~"mask").
+ * @priv:	Pointer to ARC EMAC private data structure.
+ * @reg:	Register offset from base address.
+ * @mask:	Mask to apply to specified register.
+ *
+ * This function reads initial register value, then applies provided mask
+ * to it and then writes register back.
+ */
+static inline void arc_reg_clr(struct arc_emac_priv *priv, int reg, int mask)
+{
+	unsigned int value = arc_reg_get(priv, reg);
+	arc_reg_set(priv, reg, value & ~mask);
+}
+
+int arc_mdio_probe(struct platform_device *pdev, struct arc_emac_priv *priv);
+int arc_mdio_remove(struct arc_emac_priv *priv);
+
+#endif /* ARC_EMAC_H */
diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
new file mode 100644
index 0000000..20345f6
--- /dev/null
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -0,0 +1,806 @@
+/*
+ * Copyright (C) 2004-2013 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Driver for the ARC EMAC 10100 (hardware revision 5)
+ *
+ * Contributors:
+ *		Amit Bhor
+ *		Sameer Dhavale
+ *		Vineet Gupta
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_mdio.h>
+#include <linux/of_net.h>
+#include <linux/of_platform.h>
+
+#include "emac.h"
+
+#define DRV_NAME	"arc_emac"
+#define DRV_VERSION	"1.0"
+
+/**
+ * arc_emac_adjust_link - Adjust the PHY link duplex.
+ * @ndev:	Pointer to the net_device structure.
+ *
+ * This function is called to change the duplex setting after auto negotiation
+ * is done by the PHY.
+ */
+static void arc_emac_adjust_link(struct net_device *ndev)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	struct phy_device *phy_dev = priv->phy_dev;
+	unsigned int reg, state_changed = 0;
+
+	if (priv->link != phy_dev->link) {
+		priv->link = phy_dev->link;
+		state_changed = 1;
+	}
+
+	if (priv->speed != phy_dev->speed) {
+		priv->speed = phy_dev->speed;
+		state_changed = 1;
+	}
+
+	if (priv->duplex != phy_dev->duplex) {
+		reg = arc_reg_get(priv, R_CTRL);
+
+		if (DUPLEX_FULL == phy_dev->duplex)
+			reg |= ENFL_MASK;
+		else
+			reg &= ~ENFL_MASK;
+
+		arc_reg_set(priv, R_CTRL, reg);
+		priv->duplex = phy_dev->duplex;
+		state_changed = 1;
+	}
+
+	if (state_changed)
+		phy_print_status(phy_dev);
+}
+
+/**
+ * arc_emac_get_settings - Get PHY settings.
+ * @ndev:	Pointer to net_device structure.
+ * @cmd:	Pointer to ethtool_cmd structure.
+ *
+ * This implements ethtool command for getting PHY settings. If PHY could
+ * not be found, the function returns -ENODEV. This function calls the
+ * relevant PHY ethtool API to get the PHY settings.
+ * Issue "ethtool ethX" under linux prompt to execute this function.
+ */
+static int arc_emac_get_settings(struct net_device *ndev,
+				 struct ethtool_cmd *cmd)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+
+	return phy_ethtool_gset(priv->phy_dev, cmd);
+}
+
+/**
+ * arc_emac_set_settings - Set PHY settings as passed in the argument.
+ * @ndev:	Pointer to net_device structure.
+ * @cmd:	Pointer to ethtool_cmd structure.
+ *
+ * This implements ethtool command for setting various PHY settings. If PHY
+ * could not be found, the function returns -ENODEV. This function calls the
+ * relevant PHY ethtool API to set the PHY.
+ * Issue e.g. "ethtool -s ethX speed 1000" under linux prompt to execute this
+ * function.
+ */
+static int arc_emac_set_settings(struct net_device *ndev,
+				 struct ethtool_cmd *cmd)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+
+	if (!capable(CAP_NET_ADMIN))
+		return -EPERM;
+
+	return phy_ethtool_sset(priv->phy_dev, cmd);
+}
+
+/**
+ * arc_emac_get_drvinfo - Get EMAC driver information.
+ * @ndev:	Pointer to net_device structure.
+ * @info:	Pointer to ethtool_drvinfo structure.
+ *
+ * This implements ethtool command for getting the driver information.
+ * Issue "ethtool -i ethX" under linux prompt to execute this function.
+ */
+static void arc_emac_get_drvinfo(struct net_device *ndev,
+				 struct ethtool_drvinfo *info)
+{
+	strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
+	strlcpy(info->version, DRV_VERSION, sizeof(info->version));
+}
+
+static const struct ethtool_ops arc_emac_ethtool_ops = {
+	.get_settings	= arc_emac_get_settings,
+	.set_settings	= arc_emac_set_settings,
+	.get_drvinfo	= arc_emac_get_drvinfo,
+	.get_link	= ethtool_op_get_link,
+};
+
+#define FIRST_OR_LAST_MASK	(FIRST_MASK | LAST_MASK)
+
+/**
+ * arc_emac_tx_clean - clears processed by EMAC Tx BDs.
+ * @ndev:	Pointer to the network device.
+ */
+static void arc_emac_tx_clean(struct net_device *ndev)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	struct net_device_stats *stats = &priv->stats;
+	unsigned int i;
+
+	for (i = 0; i < TX_BD_NUM; i++) {
+		unsigned int *txbd_dirty = &priv->txbd_dirty;
+		struct arc_emac_bd *txbd = &priv->txbd[*txbd_dirty];
+		struct buffer_state *tx_buff = &priv->tx_buff[*txbd_dirty];
+		struct sk_buff *skb = tx_buff->skb;
+		unsigned int info = le32_to_cpu(txbd->info);
+
+		*txbd_dirty = (*txbd_dirty + 1) % TX_BD_NUM;
+
+		if ((info & FOR_EMAC) || !txbd->data)
+			break;
+
+		if (unlikely(info & (DROP | DEFR | LTCL | UFLO))) {
+			stats->tx_errors++;
+			stats->tx_dropped++;
+
+			if (info & DEFR)
+				stats->tx_carrier_errors++;
+
+			if (info & LTCL)
+				stats->collisions++;
+
+			if (info & UFLO)
+				stats->tx_fifo_errors++;
+		} else if (likely(info & FIRST_OR_LAST_MASK)) {
+			stats->tx_packets++;
+			stats->tx_bytes += skb->len;
+		}
+
+		dma_unmap_single(&ndev->dev, dma_unmap_addr(&tx_buff, addr),
+				 dma_unmap_len(&tx_buff, len), DMA_TO_DEVICE);
+
+		/* return the sk_buff to system */
+		dev_kfree_skb_irq(skb);
+
+		txbd->data = 0;
+		txbd->info = 0;
+
+		if (netif_queue_stopped(ndev))
+			netif_wake_queue(ndev);
+	}
+}
+
+/**
+ * arc_emac_rx - processing of Rx packets.
+ * @ndev:	Pointer to the network device.
+ * @budget:	How many BDs to process on 1 call.
+ *
+ * returns:	Number of processed BDs
+ *
+ * Iterate through Rx BDs and deliver received packages to upper layer.
+ */
+static int arc_emac_rx(struct net_device *ndev, int budget)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	unsigned int work_done;
+
+	for (work_done = 0; work_done <= budget; work_done++) {
+		unsigned int *last_rx_bd = &priv->last_rx_bd;
+		struct net_device_stats *stats = &priv->stats;
+		struct buffer_state *rx_buff = &priv->rx_buff[*last_rx_bd];
+		struct arc_emac_bd *rxbd = &priv->rxbd[*last_rx_bd];
+		unsigned int buflen = EMAC_BUFFER_SIZE;
+		unsigned int pktlen, info = le32_to_cpu(rxbd->info);
+		struct sk_buff *skb;
+		dma_addr_t addr;
+
+		if (unlikely((info & OWN_MASK) == FOR_EMAC))
+			break;
+
+		/* Make a note that we saw a packet at this BD.
+		 * So next time, driver starts from this + 1
+		 */
+		*last_rx_bd = (*last_rx_bd + 1) % RX_BD_NUM;
+
+		if (unlikely((info & FIRST_OR_LAST_MASK) !=
+			     FIRST_OR_LAST_MASK)) {
+			/* We pre-allocate buffers of MTU size so incoming
+			 * packets won't be split/chained.
+			 */
+			if (net_ratelimit())
+				netdev_err(ndev, "incomplete packet received\n");
+
+			/* Return ownership to EMAC */
+			rxbd->info = cpu_to_le32(FOR_EMAC | buflen);
+			stats->rx_errors++;
+			stats->rx_length_errors++;
+			continue;
+		}
+
+		pktlen = info & LEN_MASK;
+		stats->rx_packets++;
+		stats->rx_bytes += pktlen;
+		skb = rx_buff->skb;
+		skb_put(skb, pktlen);
+		skb->dev = ndev;
+		skb->protocol = eth_type_trans(skb, ndev);
+
+		dma_unmap_single(&ndev->dev, dma_unmap_addr(&rx_buff, addr),
+				 dma_unmap_len(&rx_buff, len), DMA_FROM_DEVICE);
+
+		/* Prepare the BD for next cycle */
+		rx_buff->skb = netdev_alloc_skb_ip_align(ndev, buflen);
+		if (unlikely(!rx_buff->skb)) {
+			stats->rx_errors++;
+			/* Because receive_skb is below, increment rx_dropped */
+			stats->rx_dropped++;
+			continue;
+		}
+
+		/* receive_skb only if new skb was allocated to avoid holes */
+		netif_receive_skb(skb);
+
+		addr = dma_map_single(&ndev->dev, (void *)rx_buff->skb->data,
+				      buflen, DMA_FROM_DEVICE);
+		if (dma_mapping_error(&ndev->dev, addr)) {
+			if (net_ratelimit())
+				netdev_err(ndev, "cannot dma map\n");
+			dev_kfree_skb(rx_buff->skb);
+			stats->rx_errors++;
+			continue;
+		}
+		dma_unmap_addr_set(&rx_buff, mapping, addr);
+		dma_unmap_len_set(&rx_buff, len, buflen);
+
+		rxbd->data = cpu_to_le32(rx_buff->skb->data);
+
+		/* Make sure pointer to data buffer is set */
+		wmb();
+
+		/* Return ownership to EMAC */
+		rxbd->info = cpu_to_le32(FOR_EMAC | buflen);
+	}
+
+	return work_done;
+}
+
+/**
+ * arc_emac_poll - NAPI poll handler.
+ * @napi:	Pointer to napi_struct structure.
+ * @budget:	How many BDs to process on 1 call.
+ *
+ * returns:	Number of processed BDs
+ */
+static int arc_emac_poll(struct napi_struct *napi, int budget)
+{
+	struct net_device *ndev = napi->dev;
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	unsigned int work_done;
+
+	arc_emac_tx_clean(ndev);
+
+	work_done = arc_emac_rx(ndev, budget);
+	if (work_done < budget) {
+		napi_complete(napi);
+		arc_reg_or(priv, R_ENABLE, RXINT_MASK);
+	}
+
+	return work_done;
+}
+
+/**
+ * arc_emac_intr - Global interrupt handler for EMAC.
+ * @irq:		irq number.
+ * @dev_instance:	device instance.
+ *
+ * returns: IRQ_HANDLED for all cases.
+ *
+ * ARC EMAC has only 1 interrupt line, and depending on bits raised in
+ * STATUS register we may tell what is a reason for interrupt to fire.
+ */
+static irqreturn_t arc_emac_intr(int irq, void *dev_instance)
+{
+	struct net_device *ndev = dev_instance;
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	struct net_device_stats *stats = &priv->stats;
+	unsigned int status;
+
+	status = arc_reg_get(priv, R_STATUS);
+	status &= ~MDIO_MASK;
+
+	/* Reset all flags except "MDIO complete" */
+	arc_reg_set(priv, R_STATUS, status);
+
+	if (status & RXINT_MASK) {
+		if (likely(napi_schedule_prep(&priv->napi))) {
+			arc_reg_clr(priv, R_ENABLE, RXINT_MASK);
+			__napi_schedule(&priv->napi);
+		}
+	}
+
+	if (status & ERR_MASK) {
+		/* MSER/RXCR/RXFR/RXFL interrupt fires on corresponding
+		 * 8-bit error counter overrun.
+		 */
+
+		if (status & MSER_MASK) {
+			stats->rx_missed_errors += 0x100;
+			stats->rx_errors += 0x100;
+		}
+
+		if (status & RXCR_MASK) {
+			stats->rx_crc_errors += 0x100;
+			stats->rx_errors += 0x100;
+		}
+
+		if (status & RXFR_MASK) {
+			stats->rx_frame_errors += 0x100;
+			stats->rx_errors += 0x100;
+		}
+
+		if (status & RXFL_MASK) {
+			stats->rx_over_errors += 0x100;
+			stats->rx_errors += 0x100;
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * arc_emac_open - Open the network device.
+ * @ndev:	Pointer to the network device.
+ *
+ * returns: 0, on success or non-zero error value on failure.
+ *
+ * This function sets the MAC address, requests and enables an IRQ
+ * for the EMAC device and starts the Tx queue.
+ * It also connects to the phy device.
+ */
+static int arc_emac_open(struct net_device *ndev)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	struct phy_device *phy_dev = priv->phy_dev;
+	struct arc_emac_bd *bd;
+	struct sk_buff *skb;
+	int i;
+
+	phy_dev->autoneg = AUTONEG_ENABLE;
+	phy_dev->speed = 0;
+	phy_dev->duplex = 0;
+	phy_dev->advertising = phy_dev->supported;
+
+	if (priv->max_speed > 100) {
+		phy_dev->advertising &= PHY_GBIT_FEATURES;
+	} else if (priv->max_speed <= 100) {
+		phy_dev->advertising &= PHY_BASIC_FEATURES;
+		if (priv->max_speed <= 10) {
+			phy_dev->advertising &= ~SUPPORTED_100baseT_Half;
+			phy_dev->advertising &= ~SUPPORTED_100baseT_Full;
+		}
+	}
+
+	/* Allocate and set buffers for Rx BD's */
+	bd = priv->rxbd;
+	for (i = 0; i < RX_BD_NUM; i++) {
+		skb = netdev_alloc_skb_ip_align(ndev, EMAC_BUFFER_SIZE);
+		if (unlikely(!skb))
+			return -ENOMEM;
+
+		priv->rx_buff[i].skb = skb;
+		bd->data = cpu_to_le32(skb->data);
+
+		/* Make sure pointer to data buffer is set */
+		wmb();
+
+		/* Set ownership to EMAC */
+		bd->info = cpu_to_le32(FOR_EMAC | EMAC_BUFFER_SIZE);
+		bd++;
+	}
+
+	priv->last_rx_bd = 0;
+
+	/* Clean Tx BD's */
+	memset(priv->txbd, 0, TX_RING_SZ);
+
+	/* Initialize logical address filter */
+	arc_reg_set(priv, R_LAFL, 0);
+	arc_reg_set(priv, R_LAFH, 0);
+
+	/* Set BD ring pointers for device side */
+	arc_reg_set(priv, R_RX_RING, (unsigned int)priv->rxbd_dma);
+	arc_reg_set(priv, R_TX_RING, (unsigned int)priv->txbd_dma);
+
+	/* Enable interrupts */
+	arc_reg_set(priv, R_ENABLE, RXINT_MASK | ERR_MASK);
+
+	/* Set CONTROL */
+	arc_reg_set(priv, R_CTRL,
+		     (RX_BD_NUM << 24) |	/* RX BD table length */
+		     (TX_BD_NUM << 16) |	/* TX BD table length */
+		     TXRN_MASK | RXRN_MASK);
+
+	napi_enable(&priv->napi);
+
+	/* Enable EMAC */
+	arc_reg_or(priv, R_CTRL, EN_MASK);
+
+	phy_start_aneg(priv->phy_dev);
+
+	netif_start_queue(ndev);
+
+	return 0;
+}
+
+/**
+ * arc_emac_stop - Close the network device.
+ * @ndev:	Pointer to the network device.
+ *
+ * This function stops the Tx queue, disables interrupts and frees the IRQ for
+ * the EMAC device.
+ * It also disconnects the PHY device associated with the EMAC device.
+ */
+static int arc_emac_stop(struct net_device *ndev)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+
+	napi_disable(&priv->napi);
+	netif_stop_queue(ndev);
+
+	/* Disable interrupts */
+	arc_reg_clr(priv, R_ENABLE, RXINT_MASK | ERR_MASK);
+
+	/* Disable EMAC */
+	arc_reg_clr(priv, R_CTRL, EN_MASK);
+
+	return 0;
+}
+
+/**
+ * arc_emac_stats - Get system network statistics.
+ * @ndev:	Pointer to net_device structure.
+ *
+ * Returns the address of the device statistics structure.
+ * Statistics are updated in interrupt handler.
+ */
+static struct net_device_stats *arc_emac_stats(struct net_device *ndev)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	struct net_device_stats *stats = &priv->stats;
+	unsigned long miss, rxerr;
+	u8 rxcrc, rxfram, rxoflow;
+
+	rxerr = arc_reg_get(priv, R_RXERR);
+	miss = arc_reg_get(priv, R_MISS);
+
+	rxcrc = rxerr;
+	rxfram = rxerr >> 8;
+	rxoflow = rxerr >> 16;
+
+	stats->rx_errors += miss;
+	stats->rx_errors += rxcrc + rxfram + rxoflow;
+
+	stats->rx_over_errors += rxoflow;
+	stats->rx_frame_errors += rxfram;
+	stats->rx_crc_errors += rxcrc;
+	stats->rx_missed_errors += miss;
+
+	return stats;
+}
+
+/**
+ * arc_emac_tx - Starts the data transmission.
+ * @skb:	sk_buff pointer that contains data to be Transmitted.
+ * @ndev:	Pointer to net_device structure.
+ *
+ * returns: NETDEV_TX_OK, on success
+ *		NETDEV_TX_BUSY, if any of the descriptors are not free.
+ *
+ * This function is invoked from upper layers to initiate transmission.
+ */
+static int arc_emac_tx(struct sk_buff *skb, struct net_device *ndev)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	unsigned int len, *txbd_curr = &priv->txbd_curr;
+	struct net_device_stats *stats = &priv->stats;
+	__le32 *info = &priv->txbd[*txbd_curr].info;
+	dma_addr_t addr;
+
+	if (skb_padto(skb, ETH_ZLEN))
+		return NETDEV_TX_OK;
+
+	len = max_t(unsigned int, ETH_ZLEN, skb->len);
+
+	/* EMAC still holds this buffer in its possession.
+	 * CPU must not modify this buffer descriptor
+	 */
+	if (unlikely((le32_to_cpu(*info) & OWN_MASK) == FOR_EMAC)) {
+		netif_stop_queue(ndev);
+		return NETDEV_TX_BUSY;
+	}
+
+	addr = dma_map_single(&ndev->dev, (void *)skb->data, len,
+			      DMA_TO_DEVICE);
+
+	if (unlikely(dma_mapping_error(&ndev->dev, addr))) {
+		stats->tx_dropped++;
+		stats->tx_errors++;
+		dev_kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+	dma_unmap_addr_set(&priv->tx_buff[*txbd_curr], mapping, addr);
+	dma_unmap_len_set(&priv->tx_buff[*txbd_curr], len, len);
+
+	priv->tx_buff[*txbd_curr].skb = skb;
+	priv->txbd[*txbd_curr].data = cpu_to_le32(skb->data);
+
+	/* Make sure pointer to data buffer is set */
+	wmb();
+
+	*info = cpu_to_le32(FOR_EMAC | FIRST_OR_LAST_MASK | len);
+
+	/* Increment index to point to the next BD */
+	*txbd_curr = (*txbd_curr + 1) % TX_BD_NUM;
+
+	/* Get "info" of the next BD */
+	info = &priv->txbd[*txbd_curr].info;
+
+	/* Check if if Tx BD ring is full - next BD is still owned by EMAC */
+	if (unlikely((le32_to_cpu(*info) & OWN_MASK) == FOR_EMAC))
+		netif_stop_queue(ndev);
+
+	arc_reg_set(priv, R_STATUS, TXPL_MASK);
+
+	skb_tx_timestamp(skb);
+
+	return NETDEV_TX_OK;
+}
+
+/**
+ * arc_emac_set_address - Set the MAC address for this device.
+ * @ndev:	Pointer to net_device structure.
+ * @p:		6 byte Address to be written as MAC address.
+ *
+ * This function copies the HW address from the sockaddr structure to the
+ * net_device structure and updates the address in HW.
+ *
+ * returns:	-EBUSY if the net device is busy or 0 if the address is set
+ *		successfully.
+ */
+static int arc_emac_set_address(struct net_device *ndev, void *p)
+{
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+	struct sockaddr *addr = p;
+	unsigned int addr_low, addr_hi;
+
+	if (netif_running(ndev))
+		return -EBUSY;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	memcpy(ndev->dev_addr, addr->sa_data, ndev->addr_len);
+
+	addr_low = le32_to_cpu(*(__le32 *) &ndev->dev_addr[0]);
+	addr_hi = le16_to_cpu(*(__le16 *) &ndev->dev_addr[4]);
+
+	arc_reg_set(priv, R_ADDRL, addr_low);
+	arc_reg_set(priv, R_ADDRH, addr_hi);
+
+	return 0;
+}
+
+static const struct net_device_ops arc_emac_netdev_ops = {
+	.ndo_open		= arc_emac_open,
+	.ndo_stop		= arc_emac_stop,
+	.ndo_start_xmit		= arc_emac_tx,
+	.ndo_set_mac_address	= arc_emac_set_address,
+	.ndo_get_stats		= arc_emac_stats,
+};
+
+static int arc_emac_probe(struct platform_device *pdev)
+{
+	struct resource res_regs, res_irq;
+	struct device_node *phy_node;
+	struct arc_emac_priv *priv;
+	struct net_device *ndev;
+	const char *mac_addr;
+	unsigned int id, clock_frequency;
+	int err;
+
+	if (!pdev->dev.of_node)
+		return -ENODEV;
+
+	/* Get PHY from device tree */
+	phy_node = of_parse_phandle(pdev->dev.of_node, "phy", 0);
+	if (!phy_node) {
+		dev_err(&pdev->dev, "failed to retrieve phy description from device tree\n");
+		return -ENODEV;
+	}
+
+	/* Get EMAC registers base address from device tree */
+	err = of_address_to_resource(pdev->dev.of_node, 0, &res_regs);
+	if (err) {
+		dev_err(&pdev->dev, "failed to retrieve registers base from device tree\n");
+		return -ENODEV;
+	}
+
+	/* Get CPU clock frequency from device tree */
+	if (of_property_read_u32(pdev->dev.of_node, "clock-frequency",
+				 &clock_frequency)) {
+		dev_err(&pdev->dev, "failed to retrieve <clock-frequency> from device tree\n");
+		return -EINVAL;
+	}
+
+	/* Get IRQ from device tree */
+	err = of_irq_to_resource(pdev->dev.of_node, 0, &res_irq);
+	if (!err) {
+		dev_err(&pdev->dev, "failed to retrieve <irq> value from device tree\n");
+		return -ENODEV;
+	}
+
+	ndev = alloc_etherdev(sizeof(struct arc_emac_priv));
+	if (!ndev)
+		return -ENOMEM;
+
+	SET_NETDEV_DEV(ndev, &pdev->dev);
+
+	ndev->netdev_ops = &arc_emac_netdev_ops;
+	ndev->ethtool_ops = &arc_emac_ethtool_ops;
+	ndev->watchdog_timeo = TX_TIMEOUT;
+	/* FIXME :: no multicast support yet */
+	ndev->flags &= ~IFF_MULTICAST;
+
+	priv = netdev_priv(ndev);
+	priv->dev = &pdev->dev;
+	priv->ndev = ndev;
+
+	priv->regs = devm_ioremap_resource(&pdev->dev, &res_regs);
+	if (IS_ERR(priv->regs)) {
+		err = PTR_ERR(priv->regs);
+		goto out;
+	}
+	dev_dbg(&pdev->dev, "Registers base address is 0x%p\n", priv->regs);
+
+	id = arc_reg_get(priv, R_ID);
+
+	/* Check for EMAC revision 5 or 7, magic number */
+	if (!(id == 0x0005fd02 || id == 0x0007fd02)) {
+		dev_err(&pdev->dev, "ARC EMAC not detected, id=0x%x\n", id);
+		err = -ENODEV;
+		goto out;
+	}
+	dev_info(&pdev->dev, "ARC EMAC detected with id: 0x%x\n", id);
+
+	/* Set poll rate so that it polls every 1 ms */
+	arc_reg_set(priv, R_POLLRATE, clock_frequency / 1000000);
+
+	/* Get max speed of operation from device tree */
+	if (of_property_read_u32(pdev->dev.of_node, "max-speed",
+				 &priv->max_speed)) {
+		dev_err(&pdev->dev, "failed to retrieve <max-speed> from device tree\n");
+		err = -EINVAL;
+		goto out;
+	}
+
+	ndev->irq = res_irq.start;
+	dev_info(&pdev->dev, "IRQ is %d\n", ndev->irq);
+
+	/* Register interrupt handler for device */
+	err = devm_request_irq(&pdev->dev, ndev->irq, arc_emac_intr, 0,
+			       ndev->name, ndev);
+	if (err) {
+		dev_err(&pdev->dev, "could not allocate IRQ\n");
+		goto out;
+	}
+
+	/* Get MAC address from device tree */
+	mac_addr = of_get_mac_address(pdev->dev.of_node);
+
+	if (!mac_addr || !is_valid_ether_addr(mac_addr))
+		eth_hw_addr_random(ndev);
+	else
+		memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);
+
+	dev_info(&pdev->dev, "MAC address is now %pM\n", ndev->dev_addr);
+
+	/* Do 1 allocation instead of 2 separate ones for Rx and Tx BD rings */
+	priv->rxbd = dmam_alloc_coherent(&pdev->dev, RX_RING_SZ + TX_RING_SZ,
+					 &priv->rxbd_dma, GFP_KERNEL);
+
+	if (!priv->rxbd) {
+		dev_err(&pdev->dev, "failed to allocate data buffers\n");
+		err = -ENOMEM;
+		goto out;
+	}
+
+	priv->txbd = priv->rxbd + RX_BD_NUM;
+
+	priv->txbd_dma = priv->rxbd_dma + RX_RING_SZ;
+	dev_dbg(&pdev->dev, "EMAC Device addr: Rx Ring [0x%x], Tx Ring[%x]\n",
+		(unsigned int)priv->rxbd_dma, (unsigned int)priv->txbd_dma);
+
+	err = arc_mdio_probe(pdev, priv);
+	if (err) {
+		dev_err(&pdev->dev, "failed to probe MII bus\n");
+		goto out;
+	}
+
+	priv->phy_dev = of_phy_connect(ndev, phy_node, arc_emac_adjust_link, 0,
+				       PHY_INTERFACE_MODE_MII);
+	if (!priv->phy_dev) {
+		dev_err(&pdev->dev, "of_phy_connect() failed\n");
+		err = -ENODEV;
+		goto out;
+	}
+
+	dev_info(&pdev->dev, "connected to %s phy with id 0x%x\n",
+		 priv->phy_dev->drv->name, priv->phy_dev->phy_id);
+
+	netif_napi_add(ndev, &priv->napi, arc_emac_poll, ARC_EMAC_NAPI_WEIGHT);
+
+	err = register_netdev(ndev);
+	if (err) {
+		netif_napi_del(&priv->napi);
+		dev_err(&pdev->dev, "failed to register network device\n");
+		goto out;
+	}
+
+	return 0;
+
+out:
+	free_netdev(ndev);
+	return err;
+}
+
+static int arc_emac_remove(struct platform_device *pdev)
+{
+	struct net_device *ndev = platform_get_drvdata(pdev);
+	struct arc_emac_priv *priv = netdev_priv(ndev);
+
+	phy_disconnect(priv->phy_dev);
+	priv->phy_dev = NULL;
+	arc_mdio_remove(priv);
+	unregister_netdev(ndev);
+	netif_napi_del(&priv->napi);
+	free_netdev(ndev);
+
+	return 0;
+}
+
+static const struct of_device_id arc_emac_dt_ids[] = {
+	{ .compatible = "snps,arc-emac" },
+	{ /* Sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, arc_emac_dt_ids);
+
+static struct platform_driver arc_emac_driver = {
+	.probe = arc_emac_probe,
+	.remove = arc_emac_remove,
+	.driver = {
+		.name = DRV_NAME,
+		.owner = THIS_MODULE,
+		.of_match_table  = arc_emac_dt_ids,
+		},
+};
+
+module_platform_driver(arc_emac_driver);
+
+MODULE_AUTHOR("Alexey Brodkin <abrodkin@synopsys.com>");
+MODULE_DESCRIPTION("ARC EMAC driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/arc/emac_mdio.c b/drivers/net/ethernet/arc/emac_mdio.c
new file mode 100644
index 0000000..26ba242
--- /dev/null
+++ b/drivers/net/ethernet/arc/emac_mdio.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2004-2013 Synopsys, Inc. (www.synopsys.com)
+ *
+ * MDIO implementation for ARC EMAC
+ */
+
+#include <linux/delay.h>
+#include <linux/of_mdio.h>
+#include <linux/platform_device.h>
+
+#include "emac.h"
+
+/* Number of seconds we wait for "MDIO complete" flag to appear */
+#define ARC_MDIO_COMPLETE_POLL_COUNT	1
+
+/**
+ * arc_mdio_complete_wait - Waits until MDIO transaction is completed.
+ * @priv:	Pointer to ARC EMAC private data structure.
+ *
+ * returns:	0 on success, -ETIMEDOUT on a timeout.
+ */
+static int arc_mdio_complete_wait(struct arc_emac_priv *priv)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARC_MDIO_COMPLETE_POLL_COUNT * 40; i++) {
+		unsigned int status = arc_reg_get(priv, R_STATUS);
+
+		status &= MDIO_MASK;
+
+		if (status) {
+			/* Reset "MDIO complete" flag */
+			arc_reg_set(priv, R_STATUS, status);
+			return 0;
+		}
+
+		msleep(25);
+	}
+
+	return -ETIMEDOUT;
+}
+
+/**
+ * arc_mdio_read - MDIO interface read function.
+ * @bus:	Pointer to MII bus structure.
+ * @phy_addr:	Address of the PHY device.
+ * @reg_num:	PHY register to read.
+ *
+ * returns:	The register contents on success, -ETIMEDOUT on a timeout.
+ *
+ * Reads the contents of the requested register from the requested PHY
+ * address.
+ */
+static int arc_mdio_read(struct mii_bus *bus, int phy_addr, int reg_num)
+{
+	struct arc_emac_priv *priv = bus->priv;
+	unsigned int value;
+	int error;
+
+	arc_reg_set(priv, R_MDIO,
+		    0x60020000 | (phy_addr << 23) | (reg_num << 18));
+
+	error = arc_mdio_complete_wait(priv);
+	if (error < 0)
+		return error;
+
+	value = arc_reg_get(priv, R_MDIO) & 0xffff;
+
+	dev_dbg(priv->dev, "arc_mdio_read(phy_addr=%i, reg_num=%x) = %x\n",
+		phy_addr, reg_num, value);
+
+	return value;
+}
+
+/**
+ * arc_mdio_write - MDIO interface write function.
+ * @bus:	Pointer to MII bus structure.
+ * @phy_addr:	Address of the PHY device.
+ * @reg_num:	PHY register to write to.
+ * @value:	Value to be written into the register.
+ *
+ * returns:	0 on success, -ETIMEDOUT on a timeout.
+ *
+ * Writes the value to the requested register.
+ */
+static int arc_mdio_write(struct mii_bus *bus, int phy_addr,
+			  int reg_num, u16 value)
+{
+	struct arc_emac_priv *priv = bus->priv;
+
+	dev_dbg(priv->dev,
+		"arc_mdio_write(phy_addr=%i, reg_num=%x, value=%x)\n",
+		phy_addr, reg_num, value);
+
+	arc_reg_set(priv, R_MDIO,
+		     0x50020000 | (phy_addr << 23) | (reg_num << 18) | value);
+
+	return arc_mdio_complete_wait(priv);
+}
+
+/**
+ * arc_mdio_probe - MDIO probe function.
+ * @pdev:	Pointer to platform device.
+ * @priv:	Pointer to ARC EMAC private data structure.
+ *
+ * returns:	0 on success, -ENOMEM when mdiobus_alloc
+ * (to allocate memory for MII bus structure) fails.
+ *
+ * Sets up and registers the MDIO interface.
+ */
+int arc_mdio_probe(struct platform_device *pdev, struct arc_emac_priv *priv)
+{
+	struct mii_bus *bus;
+	int error;
+
+	bus = mdiobus_alloc();
+	if (!bus)
+		return -ENOMEM;
+
+	priv->bus = bus;
+	bus->priv = priv;
+	bus->parent = priv->dev;
+	bus->name = "Synopsys MII Bus",
+	bus->read = &arc_mdio_read;
+	bus->write = &arc_mdio_write;
+
+	snprintf(bus->id, MII_BUS_ID_SIZE, "%s", pdev->name);
+
+	error = of_mdiobus_register(bus, pdev->dev.of_node);
+	if (error) {
+		dev_err(priv->dev, "cannot register MDIO bus %s\n", bus->name);
+		mdiobus_free(bus);
+		return error;
+	}
+
+	return 0;
+}
+
+/**
+ * arc_mdio_remove - MDIO remove function.
+ * @priv:	Pointer to ARC EMAC private data structure.
+ *
+ * Unregisters the MDIO and frees any associate memory for MII bus.
+ */
+int arc_mdio_remove(struct arc_emac_priv *priv)
+{
+	mdiobus_unregister(priv->bus);
+	mdiobus_free(priv->bus);
+	priv->bus = NULL;
+
+	return 0;
+}
-- 
cgit v0.10.2


From 2d48d67fa8cd129ea85ea02d91b4a793286866f8 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Mon, 24 Jun 2013 10:28:03 +0300
Subject: net: poll/select low latency socket support

select/poll busy-poll support.

Split sysctl value into two separate ones, one for read and one for poll.
updated Documentation/sysctl/net.txt

Add a new poll flag POLL_LL. When this flag is set, sock_poll will call
sk_poll_ll if possible. sock_poll sets this flag in its return value
to indicate to select/poll when a socket that can busy poll is found.

When poll/select have nothing to report, call the low-level
sock_poll again until we are out of time or we find something.

Once the system call finds something, it stops setting POLL_LL, so it can
return the result to the user ASAP.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index 5369879..e658bbf 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -50,13 +50,27 @@ The maximum number of packets that kernel can handle on a NAPI interrupt,
 it's a Per-CPU variable.
 Default: 64
 
-low_latency_poll
+low_latency_read
 ----------------
-Low latency busy poll timeout. (needs CONFIG_NET_LL_RX_POLL)
+Low latency busy poll timeout for socket reads. (needs CONFIG_NET_LL_RX_POLL)
 Approximate time in us to spin waiting for packets on the device queue.
+This sets the default value of the SO_LL socket option.
+Can be set or overridden per socket by setting socket option SO_LL.
 Recommended value is 50. May increase power usage.
 Default: 0 (off)
 
+low_latency_poll
+----------------
+Low latency busy poll timeout for poll and select. (needs CONFIG_NET_LL_RX_POLL)
+Approximate time in us to spin waiting for packets on the device queue.
+Recommended value depends on the number of sockets you poll on.
+For several sockets 50, for several hundreds 100.
+For more than that you probably want to use epoll.
+Note that only sockets with SO_LL set will be busy polled, so you want to either
+selectively set SO_LL on those sockets or set sysctl.net.low_latency_read globally.
+May increase power usage.
+Default: 0 (off)
+
 rmem_default
 ------------
 
diff --git a/fs/select.c b/fs/select.c
index 8c1c96c..79b876e 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -27,6 +27,7 @@
 #include <linux/rcupdate.h>
 #include <linux/hrtimer.h>
 #include <linux/sched/rt.h>
+#include <net/ll_poll.h>
 
 #include <asm/uaccess.h>
 
@@ -384,9 +385,10 @@ get_max:
 #define POLLEX_SET (POLLPRI)
 
 static inline void wait_key_set(poll_table *wait, unsigned long in,
-				unsigned long out, unsigned long bit)
+				unsigned long out, unsigned long bit,
+				unsigned int ll_flag)
 {
-	wait->_key = POLLEX_SET;
+	wait->_key = POLLEX_SET | ll_flag;
 	if (in & bit)
 		wait->_key |= POLLIN_SET;
 	if (out & bit)
@@ -400,6 +402,8 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 	poll_table *wait;
 	int retval, i, timed_out = 0;
 	unsigned long slack = 0;
+	unsigned int ll_flag = POLL_LL;
+	u64 ll_time = ll_end_time();
 
 	rcu_read_lock();
 	retval = max_select_fd(n, fds);
@@ -422,6 +426,7 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 	retval = 0;
 	for (;;) {
 		unsigned long *rinp, *routp, *rexp, *inp, *outp, *exp;
+		bool can_ll = false;
 
 		inp = fds->in; outp = fds->out; exp = fds->ex;
 		rinp = fds->res_in; routp = fds->res_out; rexp = fds->res_ex;
@@ -449,7 +454,8 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 					f_op = f.file->f_op;
 					mask = DEFAULT_POLLMASK;
 					if (f_op && f_op->poll) {
-						wait_key_set(wait, in, out, bit);
+						wait_key_set(wait, in, out,
+							     bit, ll_flag);
 						mask = (*f_op->poll)(f.file, wait);
 					}
 					fdput(f);
@@ -468,6 +474,11 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 						retval++;
 						wait->_qproc = NULL;
 					}
+					if (mask & POLL_LL)
+						can_ll = true;
+					/* got something, stop busy polling */
+					if (retval)
+						ll_flag = 0;
 				}
 			}
 			if (res_in)
@@ -486,6 +497,9 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 			break;
 		}
 
+		if (can_ll && can_poll_ll(ll_time))
+			continue;
+
 		/*
 		 * If this is the first loop and we have a timeout
 		 * given, then we convert to ktime_t and set the to
@@ -717,7 +731,8 @@ struct poll_list {
  * pwait poll_table will be used by the fd-provided poll handler for waiting,
  * if pwait->_qproc is non-NULL.
  */
-static inline unsigned int do_pollfd(struct pollfd *pollfd, poll_table *pwait)
+static inline unsigned int do_pollfd(struct pollfd *pollfd, poll_table *pwait,
+				     bool *can_ll, unsigned int ll_flag)
 {
 	unsigned int mask;
 	int fd;
@@ -731,7 +746,10 @@ static inline unsigned int do_pollfd(struct pollfd *pollfd, poll_table *pwait)
 			mask = DEFAULT_POLLMASK;
 			if (f.file->f_op && f.file->f_op->poll) {
 				pwait->_key = pollfd->events|POLLERR|POLLHUP;
+				pwait->_key |= ll_flag;
 				mask = f.file->f_op->poll(f.file, pwait);
+				if (mask & POLL_LL)
+					*can_ll = true;
 			}
 			/* Mask out unneeded events. */
 			mask &= pollfd->events | POLLERR | POLLHUP;
@@ -750,6 +768,8 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 	ktime_t expire, *to = NULL;
 	int timed_out = 0, count = 0;
 	unsigned long slack = 0;
+	unsigned int ll_flag = POLL_LL;
+	u64 ll_time = ll_end_time();
 
 	/* Optimise the no-wait case */
 	if (end_time && !end_time->tv_sec && !end_time->tv_nsec) {
@@ -762,6 +782,7 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 
 	for (;;) {
 		struct poll_list *walk;
+		bool can_ll = false;
 
 		for (walk = list; walk != NULL; walk = walk->next) {
 			struct pollfd * pfd, * pfd_end;
@@ -776,9 +797,10 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 				 * this. They'll get immediately deregistered
 				 * when we break out and return.
 				 */
-				if (do_pollfd(pfd, pt)) {
+				if (do_pollfd(pfd, pt, &can_ll, ll_flag)) {
 					count++;
 					pt->_qproc = NULL;
+					ll_flag = 0;
 				}
 			}
 		}
@@ -795,6 +817,8 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 		if (count || timed_out)
 			break;
 
+		if (can_ll && can_poll_ll(ll_time))
+			continue;
 		/*
 		 * If this is the first loop and we have a timeout
 		 * given, then we convert to ktime_t and set the to
diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index fcc7c36..5bf2b3a 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -30,6 +30,7 @@
 #ifdef CONFIG_NET_LL_RX_POLL
 
 struct napi_struct;
+extern unsigned int sysctl_net_ll_read __read_mostly;
 extern unsigned int sysctl_net_ll_poll __read_mostly;
 
 /* return values from ndo_ll_poll */
@@ -38,17 +39,18 @@ extern unsigned int sysctl_net_ll_poll __read_mostly;
 
 /* we can use sched_clock() because we don't care much about precision
  * we only care that the average is bounded
+ * we don't mind a ~2.5% imprecision so <<10 instead of *1000
+ * sk->sk_ll_usec is a u_int so this can't overflow
  */
-static inline u64 ll_end_time(struct sock *sk)
+static inline u64 ll_sk_end_time(struct sock *sk)
 {
-	u64 end_time = ACCESS_ONCE(sk->sk_ll_usec);
-
-	/* we don't mind a ~2.5% imprecision
-	 * sk->sk_ll_usec is a u_int so this can't overflow
-	 */
-	end_time = (end_time << 10) + sched_clock();
+	return ((u64)ACCESS_ONCE(sk->sk_ll_usec) << 10) + sched_clock();
+}
 
-	return end_time;
+/* in poll/select we use the global sysctl_net_ll_poll value */
+static inline u64 ll_end_time(void)
+{
+	return ((u64)ACCESS_ONCE(sysctl_net_ll_poll) << 10) + sched_clock();
 }
 
 static inline bool sk_valid_ll(struct sock *sk)
@@ -62,10 +64,13 @@ static inline bool can_poll_ll(u64 end_time)
 	return !time_after64(sched_clock(), end_time);
 }
 
+/* when used in sock_poll() nonblock is known at compile time to be true
+ * so the loop and end_time will be optimized out
+ */
 static inline bool sk_poll_ll(struct sock *sk, int nonblock)
 {
+	u64 end_time = nonblock ? 0 : ll_sk_end_time(sk);
 	const struct net_device_ops *ops;
-	u64 end_time = ll_end_time(sk);
 	struct napi_struct *napi;
 	int rc = false;
 
@@ -84,7 +89,6 @@ static inline bool sk_poll_ll(struct sock *sk, int nonblock)
 		goto out;
 
 	do {
-
 		rc = ops->ndo_ll_poll(napi);
 
 		if (rc == LL_FLUSH_FAILED)
@@ -95,8 +99,8 @@ static inline bool sk_poll_ll(struct sock *sk, int nonblock)
 			NET_ADD_STATS_BH(sock_net(sk),
 					 LINUX_MIB_LOWLATENCYRXPACKETS, rc);
 
-	} while (skb_queue_empty(&sk->sk_receive_queue)
-			&& can_poll_ll(end_time) && !nonblock);
+	} while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) &&
+		 can_poll_ll(end_time));
 
 	rc = !skb_queue_empty(&sk->sk_receive_queue);
 out:
@@ -118,7 +122,12 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 
 #else /* CONFIG_NET_LL_RX_POLL */
 
-static inline u64 ll_end_time(struct sock *sk)
+static inline u64 sk_ll_end_time(struct sock *sk)
+{
+	return 0;
+}
+
+static inline u64 ll_end_time(void)
 {
 	return 0;
 }
diff --git a/include/uapi/asm-generic/poll.h b/include/uapi/asm-generic/poll.h
index 9ce7f44..4aee586 100644
--- a/include/uapi/asm-generic/poll.h
+++ b/include/uapi/asm-generic/poll.h
@@ -30,6 +30,8 @@
 
 #define POLLFREE	0x4000	/* currently only for epoll */
 
+#define POLL_LL		0x8000
+
 struct pollfd {
 	int fd;
 	short events;
diff --git a/net/core/sock.c b/net/core/sock.c
index 1e744b1..b6c619f 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2307,7 +2307,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 
 #ifdef CONFIG_NET_LL_RX_POLL
 	sk->sk_napi_id		=	0;
-	sk->sk_ll_usec		=	sysctl_net_ll_poll;
+	sk->sk_ll_usec		=	sysctl_net_ll_read;
 #endif
 
 	/*
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index 62702c2..afc677e 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -306,6 +306,14 @@ static struct ctl_table net_core_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
+	{
+		.procname	= "low_latency_read",
+		.data		= &sysctl_net_ll_read,
+		.maxlen		= sizeof(unsigned int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec
+	},
+#
 #endif
 #endif /* CONFIG_NET */
 	{
diff --git a/net/socket.c b/net/socket.c
index 3eec3f7..4da14cb 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -107,6 +107,7 @@
 #include <net/ll_poll.h>
 
 #ifdef CONFIG_NET_LL_RX_POLL
+unsigned int sysctl_net_ll_read __read_mostly;
 unsigned int sysctl_net_ll_poll __read_mostly;
 #endif
 
@@ -1147,13 +1148,24 @@ EXPORT_SYMBOL(sock_create_lite);
 /* No kernel lock held - perfect */
 static unsigned int sock_poll(struct file *file, poll_table *wait)
 {
+	unsigned int ll_flag = 0;
 	struct socket *sock;
 
 	/*
 	 *      We can't return errors to poll, so it's either yes or no.
 	 */
 	sock = file->private_data;
-	return sock->ops->poll(file, sock, wait);
+
+	if (sk_valid_ll(sock->sk)) {
+		/* this socket can poll_ll so tell the system call */
+		ll_flag = POLL_LL;
+
+		/* once, only if requested by syscall */
+		if (wait && (wait->_key & POLL_LL))
+			sk_poll_ll(sock->sk, 1);
+	}
+
+	return ll_flag | sock->ops->poll(file, sock, wait);
 }
 
 static int sock_mmap(struct file *file, struct vm_area_struct *vma)
-- 
cgit v0.10.2


From 441ac0fcaadc76ad09771812382345001dd2b813 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Tue, 25 Jun 2013 16:04:19 -0400
Subject: macvtap: Convert to using rtnl lock

Macvtap uses a private lock to protect the relationship between
macvtap_queue and macvlan_dev.  The private lock is not needed
since the relationship is managed by user via open(), release(),
and dellink() calls.  dellink() already happens under rtnl, so
we can safely convert open() and release(), and use it in ioctl()
as well.

Suggested by Eric Dumazet.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 5a76f20..efbf2eb 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -69,7 +69,7 @@ static const struct proto_ops macvtap_socket_ops;
  * RCU usage:
  * The macvtap_queue and the macvlan_dev are loosely coupled, the
  * pointers from one to the other can only be read while rcu_read_lock
- * or macvtap_lock is held.
+ * or rtnl is held.
  *
  * Both the file and the macvlan_dev hold a reference on the macvtap_queue
  * through sock_hold(&q->sk). When the macvlan_dev goes away first,
@@ -81,7 +81,6 @@ static const struct proto_ops macvtap_socket_ops;
  * file or the dev. The data structure is freed through __sk_free
  * when both our references and any pending SKBs are gone.
  */
-static DEFINE_SPINLOCK(macvtap_lock);
 
 static int macvtap_enable_queue(struct net_device *dev, struct file *file,
 				struct macvtap_queue *q)
@@ -89,7 +88,7 @@ static int macvtap_enable_queue(struct net_device *dev, struct file *file,
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	int err = -EINVAL;
 
-	spin_lock(&macvtap_lock);
+	ASSERT_RTNL();
 
 	if (q->enabled)
 		goto out;
@@ -101,7 +100,6 @@ static int macvtap_enable_queue(struct net_device *dev, struct file *file,
 
 	vlan->numvtaps++;
 out:
-	spin_unlock(&macvtap_lock);
 	return err;
 }
 
@@ -111,7 +109,7 @@ static int macvtap_set_queue(struct net_device *dev, struct file *file,
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	int err = -EBUSY;
 
-	spin_lock(&macvtap_lock);
+	rtnl_lock();
 	if (vlan->numqueues == MAX_MACVTAP_QUEUES)
 		goto out;
 
@@ -130,26 +128,25 @@ static int macvtap_set_queue(struct net_device *dev, struct file *file,
 	vlan->numqueues++;
 
 out:
-	spin_unlock(&macvtap_lock);
+	rtnl_unlock();
 	return err;
 }
 
-static int __macvtap_disable_queue(struct macvtap_queue *q)
+static int macvtap_disable_queue(struct macvtap_queue *q)
 {
 	struct macvlan_dev *vlan;
 	struct macvtap_queue *nq;
 
-	vlan = rcu_dereference_protected(q->vlan,
-					 lockdep_is_held(&macvtap_lock));
-
+	ASSERT_RTNL();
 	if (!q->enabled)
 		return -EINVAL;
 
+	vlan = rtnl_dereference(q->vlan);
+
 	if (vlan) {
 		int index = q->queue_index;
 		BUG_ON(index >= vlan->numvtaps);
-		nq = rcu_dereference_protected(vlan->taps[vlan->numvtaps - 1],
-					       lockdep_is_held(&macvtap_lock));
+		nq = rtnl_dereference(vlan->taps[vlan->numvtaps - 1]);
 		nq->queue_index = index;
 
 		rcu_assign_pointer(vlan->taps[index], nq);
@@ -162,17 +159,6 @@ static int __macvtap_disable_queue(struct macvtap_queue *q)
 	return 0;
 }
 
-static int macvtap_disable_queue(struct macvtap_queue *q)
-{
-	int err;
-
-	spin_lock(&macvtap_lock);
-	err = __macvtap_disable_queue(q);
-	spin_unlock(&macvtap_lock);
-
-	return err;
-}
-
 /*
  * The file owning the queue got closed, give up both
  * the reference that the files holds as well as the
@@ -185,12 +171,12 @@ static void macvtap_put_queue(struct macvtap_queue *q)
 {
 	struct macvlan_dev *vlan;
 
-	spin_lock(&macvtap_lock);
-	vlan = rcu_dereference_protected(q->vlan,
-					 lockdep_is_held(&macvtap_lock));
+	rtnl_lock();
+	vlan = rtnl_dereference(q->vlan);
+
 	if (vlan) {
 		if (q->enabled)
-			BUG_ON(__macvtap_disable_queue(q));
+			BUG_ON(macvtap_disable_queue(q));
 
 		vlan->numqueues--;
 		RCU_INIT_POINTER(q->vlan, NULL);
@@ -198,7 +184,7 @@ static void macvtap_put_queue(struct macvtap_queue *q)
 		list_del_init(&q->next);
 	}
 
-	spin_unlock(&macvtap_lock);
+	rtnl_unlock();
 
 	synchronize_rcu();
 	sock_put(&q->sk);
@@ -260,7 +246,7 @@ static void macvtap_del_queues(struct net_device *dev)
 	struct macvtap_queue *q, *tmp, *qlist[MAX_MACVTAP_QUEUES];
 	int i, j = 0;
 
-	spin_lock(&macvtap_lock);
+	ASSERT_RTNL();
 	list_for_each_entry_safe(q, tmp, &vlan->queue_list, next) {
 		list_del_init(&q->next);
 		qlist[j++] = q;
@@ -275,9 +261,6 @@ static void macvtap_del_queues(struct net_device *dev)
 	BUG_ON(vlan->numqueues);
 	/* guarantee that any future macvtap_set_queue will fail */
 	vlan->numvtaps = MAX_MACVTAP_QUEUES;
-	spin_unlock(&macvtap_lock);
-
-	synchronize_rcu();
 
 	for (--j; j >= 0; j--)
 		sock_put(&qlist[j]->sk);
@@ -941,11 +924,10 @@ static struct macvlan_dev *macvtap_get_vlan(struct macvtap_queue *q)
 {
 	struct macvlan_dev *vlan;
 
-	rcu_read_lock_bh();
-	vlan = rcu_dereference_bh(q->vlan);
+	ASSERT_RTNL();
+	vlan = rtnl_dereference(q->vlan);
 	if (vlan)
 		dev_hold(vlan->dev);
-	rcu_read_unlock_bh();
 
 	return vlan;
 }
@@ -1008,21 +990,27 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 		return ret;
 
 	case TUNGETIFF:
+		rtnl_lock();
 		vlan = macvtap_get_vlan(q);
-		if (!vlan)
+		if (!vlan) {
+			rtnl_unlock();
 			return -ENOLINK;
+		}
 
 		ret = 0;
 		if (copy_to_user(&ifr->ifr_name, vlan->dev->name, IFNAMSIZ) ||
 		    put_user(q->flags, &ifr->ifr_flags))
 			ret = -EFAULT;
 		macvtap_put_vlan(vlan);
+		rtnl_unlock();
 		return ret;
 
 	case TUNSETQUEUE:
 		if (get_user(u, &ifr->ifr_flags))
 			return -EFAULT;
-		return macvtap_ioctl_set_queue(file, u);
+		rtnl_lock();
+		ret = macvtap_ioctl_set_queue(file, u);
+		rtnl_unlock();
 
 	case TUNGETFEATURES:
 		if (put_user(IFF_TAP | IFF_NO_PI | IFF_VNET_HDR |
-- 
cgit v0.10.2


From ac4e4af1e59e16a018527ffa58d9d3f30bb96ca9 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Tue, 25 Jun 2013 16:04:20 -0400
Subject: macvtap: Consistently use rcu functions

Currently macvtap uses rcu_bh functions in its
user facing fuction macvtap_get_user() and macvtap_put_user().
However, its packet handlers use normal rcu as the rcu_read_lock()
is taken in netif_receive_skb().  We can safely discontinue
the usage or rcu with bh disabled.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index efbf2eb..d7856a8 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -754,8 +754,8 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 
 	skb_probe_transport_header(skb, ETH_HLEN);
 
-	rcu_read_lock_bh();
-	vlan = rcu_dereference_bh(q->vlan);
+	rcu_read_lock();
+	vlan = rcu_dereference(q->vlan);
 	/* copy skb_ubuf_info for callback when skb has no error */
 	if (zerocopy) {
 		skb_shinfo(skb)->destructor_arg = m->msg_control;
@@ -766,7 +766,7 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 		macvlan_start_xmit(skb, vlan->dev);
 	else
 		kfree_skb(skb);
-	rcu_read_unlock_bh();
+	rcu_read_unlock();
 
 	return total_len;
 
@@ -774,11 +774,11 @@ err_kfree:
 	kfree_skb(skb);
 
 err:
-	rcu_read_lock_bh();
-	vlan = rcu_dereference_bh(q->vlan);
+	rcu_read_lock();
+	vlan = rcu_dereference(q->vlan);
 	if (vlan)
 		vlan->dev->stats.tx_dropped++;
-	rcu_read_unlock_bh();
+	rcu_read_unlock();
 
 	return err;
 }
@@ -854,11 +854,11 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
 	copied += len;
 
 done:
-	rcu_read_lock_bh();
-	vlan = rcu_dereference_bh(q->vlan);
+	rcu_read_lock();
+	vlan = rcu_dereference(q->vlan);
 	if (vlan)
 		macvlan_count_rx(vlan, copied - vnet_hdr_len, ret == 0, 0);
-	rcu_read_unlock_bh();
+	rcu_read_unlock();
 
 	return ret ? ret : copied;
 }
-- 
cgit v0.10.2


From 2be5c76794b0e570aa87b012df5ac864ce668a74 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Tue, 25 Jun 2013 16:04:21 -0400
Subject: macvtap: Let TUNSETOFFLOAD actually controll offload features.

When the user issues TUNSETOFFLOAD ioctl, macvtap does not do
anything other then to verify arguments.  This patch adds
functionality to allow users to actually control offload features.
NETIF_F_GSO and NETIF_F_GRO are always on, but the rest of the
features can be controlled.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index d811b06..18373b6 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -638,6 +638,14 @@ static int macvlan_ethtool_get_settings(struct net_device *dev,
 	return __ethtool_get_settings(vlan->lowerdev, cmd);
 }
 
+static netdev_features_t macvlan_fix_features(struct net_device *dev,
+					      netdev_features_t features)
+{
+	struct macvlan_dev *vlan = netdev_priv(dev);
+
+	return features & (vlan->set_features | ~MACVLAN_FEATURES);
+}
+
 static const struct ethtool_ops macvlan_ethtool_ops = {
 	.get_link		= ethtool_op_get_link,
 	.get_settings		= macvlan_ethtool_get_settings,
@@ -651,6 +659,7 @@ static const struct net_device_ops macvlan_netdev_ops = {
 	.ndo_stop		= macvlan_stop,
 	.ndo_start_xmit		= macvlan_start_xmit,
 	.ndo_change_mtu		= macvlan_change_mtu,
+	.ndo_fix_features	= macvlan_fix_features,
 	.ndo_change_rx_flags	= macvlan_change_rx_flags,
 	.ndo_set_mac_address	= macvlan_set_mac_address,
 	.ndo_set_rx_mode	= macvlan_set_mac_lists,
@@ -791,6 +800,7 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
 	vlan->port     = port;
 	vlan->receive  = receive;
 	vlan->forward  = forward;
+	vlan->set_features = MACVLAN_FEATURES;
 
 	vlan->mode     = MACVLAN_MODE_VEPA;
 	if (data && data[IFLA_MACVLAN_MODE])
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index d7856a8..7eab019 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -65,6 +65,9 @@ static struct cdev macvtap_cdev;
 
 static const struct proto_ops macvtap_socket_ops;
 
+#define TUN_OFFLOADS (NETIF_F_HW_CSUM | NETIF_F_TSO_ECN | NETIF_F_TSO | \
+		      NETIF_F_TSO6 | NETIF_F_UFO)
+#define RX_OFFLOADS (NETIF_F_GRO | NETIF_F_LRO)
 /*
  * RCU usage:
  * The macvtap_queue and the macvlan_dev are loosely coupled, the
@@ -349,6 +352,11 @@ static int macvtap_newlink(struct net *src_net,
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	INIT_LIST_HEAD(&vlan->queue_list);
 
+	/* Since macvlan supports all offloads by default, make
+	 * tap support all offloads also.
+	 */
+	vlan->tap_features = TUN_OFFLOADS;
+
 	/* Don't put anything that may fail after macvlan_common_newlink
 	 * because we can't undo what it does.
 	 */
@@ -958,6 +966,58 @@ static int macvtap_ioctl_set_queue(struct file *file, unsigned int flags)
 	return ret;
 }
 
+static int set_offload(struct macvtap_queue *q, unsigned long arg)
+{
+	struct macvlan_dev *vlan;
+	netdev_features_t features;
+	netdev_features_t feature_mask = 0;
+
+	vlan = rtnl_dereference(q->vlan);
+	if (!vlan)
+		return -ENOLINK;
+
+	features = vlan->dev->features;
+
+	if (arg & TUN_F_CSUM) {
+		feature_mask = NETIF_F_HW_CSUM;
+
+		if (arg & (TUN_F_TSO4 | TUN_F_TSO6)) {
+			if (arg & TUN_F_TSO_ECN)
+				feature_mask |= NETIF_F_TSO_ECN;
+			if (arg & TUN_F_TSO4)
+				feature_mask |= NETIF_F_TSO;
+			if (arg & TUN_F_TSO6)
+				feature_mask |= NETIF_F_TSO6;
+		}
+
+		if (arg & TUN_F_UFO)
+			feature_mask |= NETIF_F_UFO;
+	}
+
+	/* tun/tap driver inverts the usage for TSO offloads, where
+	 * setting the TSO bit means that the userspace wants to
+	 * accept TSO frames and turning it off means that user space
+	 * does not support TSO.
+	 * For macvtap, we have to invert it to mean the same thing.
+	 * When user space turns off TSO, we turn off GSO/LRO so that
+	 * user-space will not receive TSO frames.
+	 */
+	if (feature_mask & (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_UFO))
+		features |= RX_OFFLOADS;
+	else
+		features &= ~RX_OFFLOADS;
+
+	/* tap_features are the same as features on tun/tap and
+	 * reflect user expectations.
+	 */
+	vlan->tap_features = vlan->dev->features &
+			    (feature_mask | ~TUN_OFFLOADS);
+	vlan->set_features = features;
+	netdev_update_features(vlan->dev);
+
+	return 0;
+}
+
 /*
  * provide compatibility with generic tun/tap interface
  */
@@ -1050,7 +1110,10 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
 			 got enabled for forwarded frames */
 		if (!(q->flags & IFF_VNET_HDR))
 			return  -EINVAL;
-		return 0;
+		rtnl_lock();
+		ret = set_offload(q, arg);
+		rtnl_unlock();
+		return ret;
 
 	default:
 		return -EINVAL;
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index f49a9f6..ddd33fd 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -65,6 +65,7 @@ struct macvlan_dev {
 
 	DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
 
+	netdev_features_t	set_features;
 	enum macvlan_mode	mode;
 	u16			flags;
 	int (*receive)(struct sk_buff *skb);
@@ -75,6 +76,7 @@ struct macvlan_dev {
 	struct list_head	queue_list;
 	int			numvtaps;
 	int			numqueues;
+	netdev_features_t	tap_features;
 	int			minor;
 };
 
-- 
cgit v0.10.2


From 3e4f8b787370978733ca6cae452720a4f0c296b8 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Tue, 25 Jun 2013 16:04:22 -0400
Subject: macvtap: Perform GSO on forwarding path.

When macvtap forwards skb to its tap, it needs to check
if GSO needs to be performed.  This is sometimes necessary
when the HW device performed GRO, but the guest reading
from the tap does not support it (ex: Windows 7).

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 7eab019..5bfaecd 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -276,14 +276,44 @@ static void macvtap_del_queues(struct net_device *dev)
  */
 static int macvtap_forward(struct net_device *dev, struct sk_buff *skb)
 {
+	struct macvlan_dev *vlan = netdev_priv(dev);
 	struct macvtap_queue *q = macvtap_get_queue(dev, skb);
+	netdev_features_t features;
 	if (!q)
 		goto drop;
 
 	if (skb_queue_len(&q->sk.sk_receive_queue) >= dev->tx_queue_len)
 		goto drop;
 
-	skb_queue_tail(&q->sk.sk_receive_queue, skb);
+	skb->dev = dev;
+	/* Apply the forward feature mask so that we perform segmentation
+	 * according to users wishes.
+	 */
+	features = netif_skb_features(skb) & vlan->tap_features;
+	if (netif_needs_gso(skb, features)) {
+		struct sk_buff *segs = __skb_gso_segment(skb, features, false);
+
+		if (IS_ERR(segs))
+			goto drop;
+
+		if (!segs) {
+			skb_queue_tail(&q->sk.sk_receive_queue, skb);
+			goto wake_up;
+		}
+
+		kfree_skb(skb);
+		while (segs) {
+			struct sk_buff *nskb = segs->next;
+
+			segs->next = NULL;
+			skb_queue_tail(&q->sk.sk_receive_queue, segs);
+			segs = nskb;
+		}
+	} else {
+		skb_queue_tail(&q->sk.sk_receive_queue, skb);
+	}
+
+wake_up:
 	wake_up_interruptible_poll(sk_sleep(&q->sk), POLLIN | POLLRDNORM | POLLRDBAND);
 	return NET_RX_SUCCESS;
 
-- 
cgit v0.10.2


From 762375766143aba42e74713f8364b4953c40a354 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Mon, 24 Jun 2013 19:46:54 +0800
Subject: doc: fix some syntax errors in netlink mmap sample code

Cc: Patrick McHardy <kaber@trash.net>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/netlink_mmap.txt b/Documentation/networking/netlink_mmap.txt
index e6088ba..5cc6005 100644
--- a/Documentation/networking/netlink_mmap.txt
+++ b/Documentation/networking/netlink_mmap.txt
@@ -274,9 +274,9 @@ This example assumes some ring parameters of the ring setup are available.
 			/* Get next frame header */
 			hdr = rx_ring + frame_offset;
 
-			if (hdr->nm_status == NL_MMAP_STATUS_VALID)
+			if (hdr->nm_status == NL_MMAP_STATUS_VALID) {
 				/* Regular memory mapped frame */
-				nlh = (void *hdr) + NL_MMAP_HDRLEN;
+				nlh = (void *)hdr + NL_MMAP_HDRLEN;
 				len = hdr->nm_len;
 
 				/* Release empty message immediately. May happen
-- 
cgit v0.10.2


From 6892b41d9701283085b655c6086fb57a5d63fa47 Mon Sep 17 00:00:00 2001
From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date: Tue, 25 Jun 2013 21:24:51 +0530
Subject: net: davinci: emac: Convert to devm_* api

Use devm_ioremap_resource instead of devm_request_mem_region()/devm_ioremap()
and devm_request_irq() instead of request_irq().

This ensures more consistent error values and simplifies error paths.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index efb6f65..7a66f9c 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1532,7 +1532,7 @@ static int emac_dev_open(struct net_device *ndev)
 	struct device *emac_dev = &ndev->dev;
 	u32 cnt;
 	struct resource *res;
-	int q, m, ret;
+	int ret;
 	int i = 0;
 	int k = 0;
 	struct emac_priv *priv = netdev_priv(ndev);
@@ -1567,8 +1567,9 @@ static int emac_dev_open(struct net_device *ndev)
 
 	while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k))) {
 		for (i = res->start; i <= res->end; i++) {
-			if (request_irq(i, emac_irq, IRQF_DISABLED,
-					ndev->name, ndev))
+			if (devm_request_irq(&priv->pdev->dev, i, emac_irq,
+					     IRQF_DISABLED,
+					     ndev->name, ndev))
 				goto rollback;
 		}
 		k++;
@@ -1641,15 +1642,7 @@ static int emac_dev_open(struct net_device *ndev)
 
 rollback:
 
-	dev_err(emac_dev, "DaVinci EMAC: request_irq() failed");
-
-	for (q = k; k >= 0; k--) {
-		for (m = i; m >= res->start; m--)
-			free_irq(m, ndev);
-		res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k-1);
-		m = res->end;
-	}
-
+	dev_err(emac_dev, "DaVinci EMAC: devm_request_irq() failed");
 	ret = -EBUSY;
 err:
 	pm_runtime_put(&priv->pdev->dev);
@@ -1667,9 +1660,6 @@ err:
  */
 static int emac_dev_stop(struct net_device *ndev)
 {
-	struct resource *res;
-	int i = 0;
-	int irq_num;
 	struct emac_priv *priv = netdev_priv(ndev);
 	struct device *emac_dev = &ndev->dev;
 
@@ -1685,13 +1675,6 @@ static int emac_dev_stop(struct net_device *ndev)
 	if (priv->phydev)
 		phy_disconnect(priv->phydev);
 
-	/* Free IRQ */
-	while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, i))) {
-		for (irq_num = res->start; irq_num <= res->end; irq_num++)
-			free_irq(irq_num, priv->ndev);
-		i++;
-	}
-
 	if (netif_msg_drv(priv))
 		dev_notice(emac_dev, "DaVinci EMAC: %s stopped\n", ndev->name);
 
@@ -1856,7 +1839,7 @@ static int davinci_emac_probe(struct platform_device *pdev)
 	struct resource *res;
 	struct net_device *ndev;
 	struct emac_priv *priv;
-	unsigned long size, hw_ram_addr;
+	unsigned long hw_ram_addr;
 	struct emac_platform_data *pdata;
 	struct device *emac_dev;
 	struct cpdma_params dma_params;
@@ -1907,25 +1890,11 @@ static int davinci_emac_probe(struct platform_device *pdev)
 	emac_dev = &ndev->dev;
 	/* Get EMAC platform data */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev,"error getting res\n");
-		rc = -ENOENT;
-		goto no_pdata;
-	}
-
 	priv->emac_base_phys = res->start + pdata->ctrl_reg_offset;
-	size = resource_size(res);
-	if (!devm_request_mem_region(&pdev->dev, res->start,
-				     size, ndev->name)) {
-		dev_err(&pdev->dev, "failed request_mem_region() for regs\n");
-		rc = -ENXIO;
-		goto no_pdata;
-	}
-
-	priv->remap_addr = devm_ioremap(&pdev->dev, res->start, size);
-	if (!priv->remap_addr) {
+	priv->remap_addr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->remap_addr)) {
 		dev_err(&pdev->dev, "unable to map IO\n");
-		rc = -ENOMEM;
+		rc = PTR_ERR(priv->remap_addr);
 		goto no_pdata;
 	}
 	priv->emac_base = priv->remap_addr + pdata->ctrl_reg_offset;
-- 
cgit v0.10.2


From 151328c828795574bed6ce8b37c3d0bd586e162f Mon Sep 17 00:00:00 2001
From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date: Tue, 25 Jun 2013 21:24:52 +0530
Subject: net: davinci_emac: simplify the OF parser code

This patch cleans up the OF parser code, removes unnecessary checks
on of_property_read_*() and guards davinci_emac_of_match table with
CONFIG_OF.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 7a66f9c..f118d71 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1754,29 +1754,22 @@ static const struct net_device_ops emac_netdev_ops = {
 #endif
 };
 
-#ifdef CONFIG_OF
-static struct emac_platform_data
-	*davinci_emac_of_get_pdata(struct platform_device *pdev,
-	struct emac_priv *priv)
+static struct emac_platform_data *
+davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
 {
 	struct device_node *np;
 	struct emac_platform_data *pdata = NULL;
 	const u8 *mac_addr;
-	u32 data;
-	int ret;
 
-	pdata = pdev->dev.platform_data;
-	if (!pdata) {
-		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
-		if (!pdata)
-			goto nodata;
-	}
+	if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node)
+		return pdev->dev.platform_data;
+
+	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return NULL;
 
 	np = pdev->dev.of_node;
-	if (!np)
-		goto nodata;
-	else
-		pdata->version = EMAC_VERSION_2;
+	pdata->version = EMAC_VERSION_2;
 
 	if (!is_valid_ether_addr(pdata->mac_addr)) {
 		mac_addr = of_get_mac_address(np);
@@ -1784,47 +1777,31 @@ static struct emac_platform_data
 			memcpy(pdata->mac_addr, mac_addr, ETH_ALEN);
 	}
 
-	ret = of_property_read_u32(np, "ti,davinci-ctrl-reg-offset", &data);
-	if (!ret)
-		pdata->ctrl_reg_offset = data;
+	of_property_read_u32(np, "ti,davinci-ctrl-reg-offset",
+			     &pdata->ctrl_reg_offset);
 
-	ret = of_property_read_u32(np, "ti,davinci-ctrl-mod-reg-offset",
-		&data);
-	if (!ret)
-		pdata->ctrl_mod_reg_offset = data;
+	of_property_read_u32(np, "ti,davinci-ctrl-mod-reg-offset",
+			     &pdata->ctrl_mod_reg_offset);
 
-	ret = of_property_read_u32(np, "ti,davinci-ctrl-ram-offset", &data);
-	if (!ret)
-		pdata->ctrl_ram_offset = data;
+	of_property_read_u32(np, "ti,davinci-ctrl-ram-offset",
+			     &pdata->ctrl_ram_offset);
 
-	ret = of_property_read_u32(np, "ti,davinci-ctrl-ram-size", &data);
-	if (!ret)
-		pdata->ctrl_ram_size = data;
+	of_property_read_u32(np, "ti,davinci-ctrl-ram-size",
+			     &pdata->ctrl_ram_size);
 
-	ret = of_property_read_u32(np, "ti,davinci-rmii-en", &data);
-	if (!ret)
-		pdata->rmii_en = data;
+	of_property_read_u8(np, "ti,davinci-rmii-en", &pdata->rmii_en);
 
-	ret = of_property_read_u32(np, "ti,davinci-no-bd-ram", &data);
-	if (!ret)
-		pdata->no_bd_ram = data;
+	pdata->no_bd_ram = of_property_read_bool(np, "ti,davinci-no-bd-ram");
 
 	priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
 	if (!priv->phy_node)
 		pdata->phy_id = "";
 
 	pdev->dev.platform_data = pdata;
-nodata:
+
 	return  pdata;
 }
-#else
-static struct emac_platform_data
-	*davinci_emac_of_get_pdata(struct platform_device *pdev,
-	struct emac_priv *priv)
-{
-	return  pdev->dev.platform_data;
-}
-#endif
+
 /**
  * davinci_emac_probe - EMAC device probe
  * @pdev: The DaVinci EMAC device that we are removing
@@ -2045,11 +2022,13 @@ static const struct dev_pm_ops davinci_emac_pm_ops = {
 	.resume		= davinci_emac_resume,
 };
 
+#if IS_ENABLED(CONFIG_OF)
 static const struct of_device_id davinci_emac_of_match[] = {
 	{.compatible = "ti,davinci-dm6467-emac", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, davinci_emac_of_match);
+#endif
 
 /* davinci_emac_driver: EMAC platform driver structure */
 static struct platform_driver davinci_emac_driver = {
-- 
cgit v0.10.2


From 277e2a84c12e0d4af77d0f0a52623211eb6ab223 Mon Sep 17 00:00:00 2001
From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date: Tue, 25 Jun 2013 21:24:53 +0530
Subject: net: davinci_mdio: gaurd the DT code with IS_ENABLED(CONFIG_OF)

guard the davinci_mdio_of_mtable table and davinci_mdio_probe_dt()
with CONFIG_OF.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index c47f0db..dac6f58 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -291,6 +291,7 @@ static int davinci_mdio_write(struct mii_bus *bus, int phy_id,
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_OF)
 static int davinci_mdio_probe_dt(struct mdio_platform_data *data,
 			 struct platform_device *pdev)
 {
@@ -308,7 +309,7 @@ static int davinci_mdio_probe_dt(struct mdio_platform_data *data,
 
 	return 0;
 }
-
+#endif
 
 static int davinci_mdio_probe(struct platform_device *pdev)
 {
@@ -477,11 +478,13 @@ static const struct dev_pm_ops davinci_mdio_pm_ops = {
 	.resume_early	= davinci_mdio_resume,
 };
 
+#if IS_ENABLED(CONFIG_OF)
 static const struct of_device_id davinci_mdio_of_mtable[] = {
 	{ .compatible = "ti,davinci_mdio", },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, davinci_mdio_of_mtable);
+#endif
 
 static struct platform_driver davinci_mdio_driver = {
 	.driver = {
-- 
cgit v0.10.2


From 87a7b84b588c2ddbde890890855aef18ec34174e Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 24 Jun 2013 11:49:29 +0200
Subject: bonding: add helper function bond_get_targets_ip(targets, ip)

Add function bond_get_targets_ip(targets, ip) which searches through
targets array of ips (arp_targets) and returns the position of first
match. If ip == 0, returns the first free slot. On failure to find the
ip or free slot, return -1.

Use it to verify if the arp we've received is valid and in sysfs.

v1->v2:
Fix "[2/6] bonding: add helper function bond_get_targets_ip(targets, ip)",
per Nikolay's advice, to verify if source ip != 0.0.0.0, otherwise we might
update 'null' arp_ip_targets' last_rx. Also, address style.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 3b31c19..976d28e 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2610,19 +2610,16 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave)
 
 static void bond_validate_arp(struct bonding *bond, struct slave *slave, __be32 sip, __be32 tip)
 {
-	int i;
-	__be32 *targets = bond->params.arp_targets;
+	if (!sip || !bond_has_this_ip(bond, tip)) {
+		pr_debug("bva: sip %pI4 tip %pI4 not found\n", &sip, &tip);
+		return;
+	}
 
-	for (i = 0; (i < BOND_MAX_ARP_TARGETS) && targets[i]; i++) {
-		pr_debug("bva: sip %pI4 tip %pI4 t[%d] %pI4 bhti(tip) %d\n",
-			 &sip, &tip, i, &targets[i],
-			 bond_has_this_ip(bond, tip));
-		if (sip == targets[i]) {
-			if (bond_has_this_ip(bond, tip))
-				slave->last_arp_rx = jiffies;
-			return;
-		}
+	if (bond_get_targets_ip(bond->params.arp_targets, sip) == -1) {
+		pr_debug("bva: sip %pI4 not found in targets\n", &sip);
+		return;
 	}
+	slave->last_arp_rx = jiffies;
 }
 
 static int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
@@ -4839,7 +4836,7 @@ static int __net_init bond_net_init(struct net *net)
 
 	bond_create_proc_dir(bn);
 	bond_create_sysfs(bn);
-	
+
 	return 0;
 }
 
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index f8bee4c..ece57f1 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -591,7 +591,7 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 					 const char *buf, size_t count)
 {
 	__be32 newtarget;
-	int i = 0, done = 0, ret = count;
+	int i = 0, ret = -EINVAL;
 	struct bonding *bond = to_bond(d);
 	__be32 *targets;
 
@@ -602,57 +602,44 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 		if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
 			pr_err("%s: invalid ARP target %pI4 specified for addition\n",
 			       bond->dev->name, &newtarget);
-			ret = -EINVAL;
 			goto out;
 		}
-		/* look for an empty slot to put the target in, and check for dupes */
-		for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) {
-			if (targets[i] == newtarget) { /* duplicate */
-				pr_err("%s: ARP target %pI4 is already present\n",
-				       bond->dev->name, &newtarget);
-				ret = -EINVAL;
-				goto out;
-			}
-			if (targets[i] == 0) {
-				pr_info("%s: adding ARP target %pI4.\n",
-					bond->dev->name, &newtarget);
-				done = 1;
-				targets[i] = newtarget;
-			}
+
+		if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */
+			pr_err("%s: ARP target %pI4 is already present\n",
+			       bond->dev->name, &newtarget);
+			goto out;
 		}
-		if (!done) {
+
+		i = bond_get_targets_ip(targets, 0); /* first free slot */
+		if (i == -1) {
 			pr_err("%s: ARP target table is full!\n",
 			       bond->dev->name);
-			ret = -EINVAL;
 			goto out;
 		}
 
+		pr_info("%s: adding ARP target %pI4.\n", bond->dev->name,
+			 &newtarget);
+		targets[i] = newtarget;
 	} else if (buf[0] == '-')	{
 		if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
 			pr_err("%s: invalid ARP target %pI4 specified for removal\n",
 			       bond->dev->name, &newtarget);
-			ret = -EINVAL;
 			goto out;
 		}
 
-		for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) {
-			if (targets[i] == newtarget) {
-				int j;
-				pr_info("%s: removing ARP target %pI4.\n",
-					bond->dev->name, &newtarget);
-				for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++)
-					targets[j] = targets[j+1];
-
-				targets[j] = 0;
-				done = 1;
-			}
-		}
-		if (!done) {
+		i = bond_get_targets_ip(targets, newtarget);
+		if (i == -1) {
 			pr_info("%s: unable to remove nonexistent ARP target %pI4.\n",
 				bond->dev->name, &newtarget);
-			ret = -EINVAL;
 			goto out;
 		}
+
+		pr_info("%s: removing ARP target %pI4.\n", bond->dev->name,
+			&newtarget);
+		for (; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
+			targets[i] = targets[i+1];
+		targets[i] = 0;
 	} else {
 		pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n",
 		       bond->dev->name);
@@ -660,6 +647,7 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 		goto out;
 	}
 
+	ret = count;
 out:
 	return ret;
 }
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index c990b42..486e532 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -464,6 +464,22 @@ static inline struct slave *bond_slave_has_mac(struct bonding *bond,
 	return NULL;
 }
 
+/* Check if the ip is present in arp ip list, or first free slot if ip == 0
+ * Returns -1 if not found, index if found
+ */
+static inline int bond_get_targets_ip(__be32 *targets, __be32 ip)
+{
+	int i;
+
+	for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
+		if (targets[i] == ip)
+			return i;
+		else if (targets[i] == 0)
+			break;
+
+	return -1;
+}
+
 /* exported from bond_main.c */
 extern int bond_net_id;
 extern const struct bond_parm_tbl bond_lacp_tbl[];
-- 
cgit v0.10.2


From 0afee4e8b9fe4b5f58734b2f28e980dd58d3e3cb Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 24 Jun 2013 11:49:30 +0200
Subject: bonding: don't add duplicate targets to arp_ip_target

Print a warning and skip them.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 976d28e..1645130 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4588,7 +4588,11 @@ static int bond_check_params(struct bond_params *params)
 				   arp_ip_target[i]);
 			arp_interval = 0;
 		} else {
-			arp_target[arp_ip_count++] = ip;
+			if (bond_get_targets_ip(arp_target, ip) == -1)
+				arp_target[arp_ip_count++] = ip;
+			else
+				pr_warning("Warning: duplicate address %pI4 in arp_ip_target, skipping\n",
+					   &ip);
 		}
 	}
 
-- 
cgit v0.10.2


From 2c14610210978512271dd6fe21d6f55b789d9a80 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 24 Jun 2013 11:49:31 +0200
Subject: bonding: don't validate arp if we don't have to

Currently, we validate all the incoming arps if arp_validate not 0.
However, we don't have to validate backup slaves if arp_validate == active
and vice versa, so return early in bond_arp_rcv() in these cases.

It works correctly now because we verify arp_validate in slave_last_rx(),
however we're just doing useless work in bond_arp_rcv().

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 1645130..7fe9802 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2634,6 +2634,10 @@ static int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
 		return RX_HANDLER_ANOTHER;
 
 	read_lock(&bond->lock);
+
+	if (!slave_do_arp_validate(bond, slave))
+		goto out_unlock;
+
 	alen = arp_hdr_len(bond->dev);
 
 	pr_debug("bond_arp_rcv: bond %s skb->dev %s\n",
-- 
cgit v0.10.2


From aeea64ac717a920ea655b061e37b14fbc872f7db Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 24 Jun 2013 11:49:32 +0200
Subject: bonding: don't trust arp requests unless active slave really works

Currently, if we receive any arp packet on a backup slave in active-backup
mode and arp_validate enabled, we suppose that it's an arp request, swap
source/target ip and try to validate it. This optimization gives us
virtually no downtime in the most common situation (active and backup
slaves are in the same broadcast domain and the active slave failed).

However, if we can't reach the arp_ip_target(s), we end up in an endless
loop of reselecting slaves, because we receive our arp requests, sent by
the active slave, and think that backup slaves are up, thus selecting them
as active and, again, sending arp requests, which fool our backup slaves.

Fix this by not validating the swapped arp packets if the current active
slave didn't receive any arp reply after it was selected as active. This
way we will only accept arp requests if we know that the current active
slave can actually reach arp_ip_target.

v3->v4:
Obey 80 lines and make checkpatch.pl happy, per Sergei's suggestion.

v1->v3:
No change.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 7fe9802..d3a70c0 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2677,10 +2677,17 @@ static int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
 	 * configuration, the ARP probe will (hopefully) travel from
 	 * the active, through one switch, the router, then the other
 	 * switch before reaching the backup.
+	 *
+	 * We 'trust' the arp requests if there is an active slave and
+	 * it received valid arp reply(s) after it became active. This
+	 * is done to avoid endless looping when we can't reach the
+	 * arp_ip_target and fool ourselves with our own arp requests.
 	 */
 	if (bond_is_active_slave(slave))
 		bond_validate_arp(bond, slave, sip, tip);
-	else
+	else if (bond->curr_active_slave &&
+		 time_after(slave_last_rx(bond, bond->curr_active_slave),
+			    bond->curr_active_slave->jiffies))
 		bond_validate_arp(bond, slave, tip, sip);
 
 out_unlock:
-- 
cgit v0.10.2


From d7d35c681fb4eae1fab3d93698e26a106ca7e79e Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 24 Jun 2013 11:49:33 +0200
Subject: bonding: doc: some details on backup slave arp validation

Add some details to bonding documentation on how backup slave arp
validation works.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index e7454fc..adee3b4 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -303,6 +303,12 @@ arp_validate
 	such a situation, validation of backup slaves must be
 	disabled.
 
+	The validation of ARP requests on backup slaves is mainly
+	helping bonding to decide which slaves are more likely to
+	work in case of the active slave failure, it doesn't really
+	guarantee that the backup slave will work if it's selected
+	as the next active slave.
+
 	This option is useful in network configurations in which
 	multiple bonding hosts are concurrently issuing ARPs to one or
 	more targets beyond a common switch.  Should the link between
-- 
cgit v0.10.2


From 8599b52e14a1611dcb563289421bee76751f1d53 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 24 Jun 2013 11:49:34 +0200
Subject: bonding: add an option to fail when any of arp_ip_target is
 inaccessible

Currently, we fail only when all of the ips in arp_ip_target are gone.
However, in some situations we might need to fail if even one host from
arp_ip_target becomes unavailable.

All situations, obviously, rely on the idea that we need *completely*
functional network, with all interfaces/addresses working correctly.

One real world example might be:
vlans on top on bond (hybrid port). If bond and vlans have ips assigned
and we have their peers monitored via arp_ip_target - in case of switch
misconfiguration (trunk/access port), slave driver malfunction or
tagged/untagged traffic dropped on the way - we will be able to switch
to another slave.

Though any other configuration needs that if we need to have access to all
arp_ip_targets.

This patch adds this possibility by adding a new parameter -
arp_all_targets (both as a module parameter and as a sysfs knob). It can be
set to:

	0 or any (the default) - which works exactly as it's working now -
	the slave is up if any of the arp_ip_targets are up.

	1 or all - the slave is up if all of the arp_ip_targets are up.

This parameter can be changed on the fly (via sysfs), and requires the mode
to be active-backup and arp_validate to be enabled (it obeys the
arp_validate config on which slaves to validate).

Internally it's done through:

1) Add target_last_arp_rx[BOND_MAX_ARP_TARGETS] array to slave struct. It's
   an array of jiffies, meaning that slave->target_last_arp_rx[i] is the
   last time we've received arp from bond->params.arp_targets[i] on this
   slave.

2) If we successfully validate an arp from bond->params.arp_targets[i] in
   bond_validate_arp() - update the slave->target_last_arp_rx[i] with the
   current jiffies value.

3) When getting slave's last_rx via slave_last_rx(), we return the oldest
   time when we've received an arp from any address in
   bond->params.arp_targets[].

If the value of arp_all_targets == 0 - we still work the same way as
before.

Also, update the documentation to reflect the new parameter.

v3->v4:
Kill the forgotten rtnl_unlock(), rephrase the documentation part to be
more clear, don't fail setting arp_all_targets if arp_validate is not set -
it has no effect anyway but can be easier to set up. Also, print a warning
if the last arp_ip_target is removed while the arp_interval is on, but not
the arp_validate.

v2->v3:
Use _bh spinlock, remove useless rtnl_lock() and use jiffies for new
arp_ip_target last arp, instead of slave_last_rx(). On bond_enslave(),
use the same initialization value for target_last_arp_rx[] as is used
for the default last_arp_rx, to avoid useless interface flaps.

Also, instead of failing to remove the last arp_ip_target just print a
warning - otherwise it might break existing scripts.

v1->v2:
Correctly handle adding/removing hosts in arp_ip_target - we need to
shift/initialize all slave's target_last_arp_rx. Also, don't fail module
loading on arp_all_targets misconfiguration, just disable it, and some
minor style fixes.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index adee3b4..87bbcfe 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -321,6 +321,25 @@ arp_validate
 
 	This option was added in bonding version 3.1.0.
 
+arp_all_targets
+
+	Specifies the quantity of arp_ip_targets that must be reachable
+	in order for the ARP monitor to consider a slave as being up.
+	This option affects only active-backup mode for slaves with
+	arp_validation enabled.
+
+	Possible values are:
+
+	any or 0
+
+		consider the slave up only when any of the arp_ip_targets
+		is reachable
+
+	all or 1
+
+		consider the slave up only when all of the arp_ip_targets
+		are reachable
+
 downdelay
 
 	Specifies the time, in milliseconds, to wait before disabling
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d3a70c0..142d55d 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -104,6 +104,7 @@ static char *xmit_hash_policy;
 static int arp_interval = BOND_LINK_ARP_INTERV;
 static char *arp_ip_target[BOND_MAX_ARP_TARGETS];
 static char *arp_validate;
+static char *arp_all_targets;
 static char *fail_over_mac;
 static int all_slaves_active = 0;
 static struct bond_params bonding_defaults;
@@ -166,6 +167,8 @@ module_param(arp_validate, charp, 0);
 MODULE_PARM_DESC(arp_validate, "validate src/dst of ARP probes; "
 			       "0 for none (default), 1 for active, "
 			       "2 for backup, 3 for all");
+module_param(arp_all_targets, charp, 0);
+MODULE_PARM_DESC(arp_all_targets, "fail on any/all arp targets timeout; 0 for any (default), 1 for all");
 module_param(fail_over_mac, charp, 0);
 MODULE_PARM_DESC(fail_over_mac, "For active-backup, do not set all slaves to "
 				"the same MAC; 0 for none (default), "
@@ -216,6 +219,12 @@ const struct bond_parm_tbl xmit_hashtype_tbl[] = {
 {	NULL,			-1},
 };
 
+const struct bond_parm_tbl arp_all_targets_tbl[] = {
+{	"any",			BOND_ARP_TARGETS_ANY},
+{	"all",			BOND_ARP_TARGETS_ALL},
+{	NULL,			-1},
+};
+
 const struct bond_parm_tbl arp_validate_tbl[] = {
 {	"none",			BOND_ARP_VALIDATE_NONE},
 {	"active",		BOND_ARP_VALIDATE_ACTIVE},
@@ -1483,7 +1492,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	struct slave *new_slave = NULL;
 	struct sockaddr addr;
 	int link_reporting;
-	int res = 0;
+	int res = 0, i;
 
 	if (!bond->params.use_carrier &&
 	    slave_dev->ethtool_ops->get_link == NULL &&
@@ -1712,6 +1721,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 
 	new_slave->last_arp_rx = jiffies -
 		(msecs_to_jiffies(bond->params.arp_interval) + 1);
+	for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
+		new_slave->target_last_arp_rx[i] = new_slave->last_arp_rx;
 
 	if (bond->params.miimon && !bond->params.use_carrier) {
 		link_reporting = bond_check_dev_link(bond, slave_dev, 1);
@@ -2610,16 +2621,20 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave)
 
 static void bond_validate_arp(struct bonding *bond, struct slave *slave, __be32 sip, __be32 tip)
 {
+	int i;
+
 	if (!sip || !bond_has_this_ip(bond, tip)) {
 		pr_debug("bva: sip %pI4 tip %pI4 not found\n", &sip, &tip);
 		return;
 	}
 
-	if (bond_get_targets_ip(bond->params.arp_targets, sip) == -1) {
+	i = bond_get_targets_ip(bond->params.arp_targets, sip);
+	if (i == -1) {
 		pr_debug("bva: sip %pI4 not found in targets\n", &sip);
 		return;
 	}
 	slave->last_arp_rx = jiffies;
+	slave->target_last_arp_rx[i] = jiffies;
 }
 
 static int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
@@ -4409,6 +4424,7 @@ int bond_parse_parm(const char *buf, const struct bond_parm_tbl *tbl)
 static int bond_check_params(struct bond_params *params)
 {
 	int arp_validate_value, fail_over_mac_value, primary_reselect_value, i;
+	int arp_all_targets_value;
 
 	/*
 	 * Convert string parameters.
@@ -4634,6 +4650,18 @@ static int bond_check_params(struct bond_params *params)
 	} else
 		arp_validate_value = 0;
 
+	arp_all_targets_value = 0;
+	if (arp_all_targets) {
+		arp_all_targets_value = bond_parse_parm(arp_all_targets,
+							arp_all_targets_tbl);
+
+		if (arp_all_targets_value == -1) {
+			pr_err("Error: invalid arp_all_targets_value \"%s\"\n",
+			       arp_all_targets);
+			arp_all_targets_value = 0;
+		}
+	}
+
 	if (miimon) {
 		pr_info("MII link monitoring set to %d ms\n", miimon);
 	} else if (arp_interval) {
@@ -4698,6 +4726,7 @@ static int bond_check_params(struct bond_params *params)
 	params->num_peer_notif = num_peer_notif;
 	params->arp_interval = arp_interval;
 	params->arp_validate = arp_validate_value;
+	params->arp_all_targets = arp_all_targets_value;
 	params->updelay = updelay;
 	params->downdelay = downdelay;
 	params->use_carrier = use_carrier;
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index ece57f1..dc36a3d 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -443,6 +443,44 @@ static ssize_t bonding_store_arp_validate(struct device *d,
 
 static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate,
 		   bonding_store_arp_validate);
+/*
+ * Show and set arp_all_targets.
+ */
+static ssize_t bonding_show_arp_all_targets(struct device *d,
+					 struct device_attribute *attr,
+					 char *buf)
+{
+	struct bonding *bond = to_bond(d);
+	int value = bond->params.arp_all_targets;
+
+	return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename,
+		       value);
+}
+
+static ssize_t bonding_store_arp_all_targets(struct device *d,
+					  struct device_attribute *attr,
+					  const char *buf, size_t count)
+{
+	struct bonding *bond = to_bond(d);
+	int new_value;
+
+	new_value = bond_parse_parm(buf, arp_all_targets_tbl);
+	if (new_value < 0) {
+		pr_err("%s: Ignoring invalid arp_all_targets value %s\n",
+		       bond->dev->name, buf);
+		return -EINVAL;
+	}
+	pr_info("%s: setting arp_all_targets to %s (%d).\n",
+		bond->dev->name, arp_all_targets_tbl[new_value].modename,
+		new_value);
+
+	bond->params.arp_all_targets = new_value;
+
+	return count;
+}
+
+static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR,
+		   bonding_show_arp_all_targets, bonding_store_arp_all_targets);
 
 /*
  * Show and store fail_over_mac.  User only allowed to change the
@@ -590,10 +628,11 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 					 struct device_attribute *attr,
 					 const char *buf, size_t count)
 {
-	__be32 newtarget;
-	int i = 0, ret = -EINVAL;
 	struct bonding *bond = to_bond(d);
-	__be32 *targets;
+	struct slave *slave;
+	__be32 newtarget, *targets;
+	unsigned long *targets_rx;
+	int ind, i, j, ret = -EINVAL;
 
 	targets = bond->params.arp_targets;
 	newtarget = in_aton(buf + 1);
@@ -611,8 +650,8 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 			goto out;
 		}
 
-		i = bond_get_targets_ip(targets, 0); /* first free slot */
-		if (i == -1) {
+		ind = bond_get_targets_ip(targets, 0); /* first free slot */
+		if (ind == -1) {
 			pr_err("%s: ARP target table is full!\n",
 			       bond->dev->name);
 			goto out;
@@ -620,7 +659,12 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 
 		pr_info("%s: adding ARP target %pI4.\n", bond->dev->name,
 			 &newtarget);
-		targets[i] = newtarget;
+		/* not to race with bond_arp_rcv */
+		write_lock_bh(&bond->lock);
+		bond_for_each_slave(bond, slave, i)
+			slave->target_last_arp_rx[ind] = jiffies;
+		targets[ind] = newtarget;
+		write_unlock_bh(&bond->lock);
 	} else if (buf[0] == '-')	{
 		if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
 			pr_err("%s: invalid ARP target %pI4 specified for removal\n",
@@ -628,18 +672,32 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 			goto out;
 		}
 
-		i = bond_get_targets_ip(targets, newtarget);
-		if (i == -1) {
-			pr_info("%s: unable to remove nonexistent ARP target %pI4.\n",
+		ind = bond_get_targets_ip(targets, newtarget);
+		if (ind == -1) {
+			pr_err("%s: unable to remove nonexistent ARP target %pI4.\n",
 				bond->dev->name, &newtarget);
 			goto out;
 		}
 
+		if (ind == 0 && !targets[1] && bond->params.arp_interval)
+			pr_warn("%s: removing last arp target with arp_interval on\n",
+				bond->dev->name);
+
 		pr_info("%s: removing ARP target %pI4.\n", bond->dev->name,
 			&newtarget);
-		for (; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
+
+		write_lock_bh(&bond->lock);
+		bond_for_each_slave(bond, slave, i) {
+			targets_rx = slave->target_last_arp_rx;
+			j = ind;
+			for (; (j < BOND_MAX_ARP_TARGETS-1) && targets[j+1]; j++)
+				targets_rx[j] = targets_rx[j+1];
+			targets_rx[j] = 0;
+		}
+		for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
 			targets[i] = targets[i+1];
 		targets[i] = 0;
+		write_unlock_bh(&bond->lock);
 	} else {
 		pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n",
 		       bond->dev->name);
@@ -1623,6 +1681,7 @@ static struct attribute *per_bond_attrs[] = {
 	&dev_attr_mode.attr,
 	&dev_attr_fail_over_mac.attr,
 	&dev_attr_arp_validate.attr,
+	&dev_attr_arp_all_targets.attr,
 	&dev_attr_arp_interval.attr,
 	&dev_attr_arp_ip_target.attr,
 	&dev_attr_downdelay.attr,
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 486e532..3fb73cc 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -144,6 +144,7 @@ struct bond_params {
 	u8 num_peer_notif;
 	int arp_interval;
 	int arp_validate;
+	int arp_all_targets;
 	int use_carrier;
 	int fail_over_mac;
 	int updelay;
@@ -179,6 +180,7 @@ struct slave {
 	int    delay;
 	unsigned long jiffies;
 	unsigned long last_arp_rx;
+	unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS];
 	s8     link;    /* one of BOND_LINK_XXXX */
 	s8     new_link;
 	u8     backup:1,   /* indicates backup slave. Value corresponds with
@@ -322,6 +324,9 @@ static inline bool bond_is_active_slave(struct slave *slave)
 #define BOND_FOM_ACTIVE			1
 #define BOND_FOM_FOLLOW			2
 
+#define BOND_ARP_TARGETS_ANY		0
+#define BOND_ARP_TARGETS_ALL		1
+
 #define BOND_ARP_VALIDATE_NONE		0
 #define BOND_ARP_VALIDATE_ACTIVE	(1 << BOND_STATE_ACTIVE)
 #define BOND_ARP_VALIDATE_BACKUP	(1 << BOND_STATE_BACKUP)
@@ -334,11 +339,31 @@ static inline int slave_do_arp_validate(struct bonding *bond,
 	return bond->params.arp_validate & (1 << bond_slave_state(slave));
 }
 
+/* Get the oldest arp which we've received on this slave for bond's
+ * arp_targets.
+ */
+static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond,
+						       struct slave *slave)
+{
+	int i = 1;
+	unsigned long ret = slave->target_last_arp_rx[0];
+
+	for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++)
+		if (time_before(slave->target_last_arp_rx[i], ret))
+			ret = slave->target_last_arp_rx[i];
+
+	return ret;
+}
+
 static inline unsigned long slave_last_rx(struct bonding *bond,
 					struct slave *slave)
 {
-	if (slave_do_arp_validate(bond, slave))
-		return slave->last_arp_rx;
+	if (slave_do_arp_validate(bond, slave)) {
+		if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL)
+			return slave_oldest_target_arp_rx(bond, slave);
+		else
+			return slave->last_arp_rx;
+	}
 
 	return slave->dev->last_rx;
 }
@@ -486,6 +511,7 @@ extern const struct bond_parm_tbl bond_lacp_tbl[];
 extern const struct bond_parm_tbl bond_mode_tbl[];
 extern const struct bond_parm_tbl xmit_hashtype_tbl[];
 extern const struct bond_parm_tbl arp_validate_tbl[];
+extern const struct bond_parm_tbl arp_all_targets_tbl[];
 extern const struct bond_parm_tbl fail_over_mac_tbl[];
 extern const struct bond_parm_tbl pri_reselect_tbl[];
 extern struct bond_parm_tbl ad_select_tbl[];
-- 
cgit v0.10.2


From 537f7f8494be4219eb0ef47121ea16a6f9f0f49e Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Tue, 25 Jun 2013 09:34:36 -0700
Subject: bridge: check for zero ether address in fdb add

The check for all-zero ether address was removed from rtnetlink core,
since Vxlan uses all-zero ether address to signify default address.
Need to add check back in for bridge.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index ebfa444..60aca91 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -707,6 +707,11 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 		}
 	}
 
+	if (is_zero_ether_addr(addr)) {
+		pr_info("bridge: RTM_NEWNEIGH with invalid ether address\n");
+		return -EINVAL;
+	}
+
 	p = br_port_get_rtnl(dev);
 	if (p == NULL) {
 		pr_info("bridge: RTM_NEWNEIGH %s not a bridge port\n",
-- 
cgit v0.10.2


From ba609e9bf15bd7df35e2c06a2e5aaf9ab9289b10 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Tue, 25 Jun 2013 17:06:01 -0700
Subject: vxlan: fix function name spelling

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 3e75f97..227b54a 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1332,7 +1332,7 @@ static int vxlan_init(struct net_device *dev)
 	return 0;
 }
 
-static void vxlan_fdb_delete_defualt(struct vxlan_dev *vxlan)
+static void vxlan_fdb_delete_default(struct vxlan_dev *vxlan)
 {
 	struct vxlan_fdb *f;
 
@@ -1349,7 +1349,7 @@ static void vxlan_uninit(struct net_device *dev)
 	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
 	struct vxlan_sock *vs = vxlan->vn_sock;
 
-	vxlan_fdb_delete_defualt(vxlan);
+	vxlan_fdb_delete_default(vxlan);
 
 	if (vs)
 		vxlan_sock_release(vn, vs);
@@ -1756,7 +1756,7 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
 
 	err = register_netdevice(dev);
 	if (err) {
-		vxlan_fdb_delete_defualt(vxlan);
+		vxlan_fdb_delete_default(vxlan);
 		return err;
 	}
 
-- 
cgit v0.10.2


From a4a1139b242f03dfb8a5d7a86fa674bda1cf60b2 Mon Sep 17 00:00:00 2001
From: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Date: Wed, 26 Jun 2013 11:49:26 +0400
Subject: arc_emac: fix compile-time errors & warnings on PPC64

As reported by "kbuild test robot" there were some errors and warnings
on attempt to build kernel with "make ARCH=powerpc allmodconfig".

And this patch addresses both errors and warnings.
Below is a list of introduced changes:
1. Fix compile-time errors (misspellings in "dma_unmap_single") on PPC.
2. Use DMA address instead of "skb->data" as a pointer to data buffer.
This fixed warnings on pointer to int conversion on 64-bit systems.
3. Re-implemented initial allocation of Rx buffers in "arc_emac_open" in
the same way they're re-allocated during operation (receiving packets).
So once again DMA address could be used instead of "skb->data".
4. Explicitly use EMAC_BUFFER_SIZE for Rx buffers allocation.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

Cc: netdev@vger.kernel.org
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: Joe Perches <joe@perches.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Mischa Jonker <mjonker@synopsys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: linux-kernel@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Florian Fainelli <florian@openwrt.org>
Cc: David Laight <david.laight@aculab.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index 20345f6..f1b121e 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -171,8 +171,8 @@ static void arc_emac_tx_clean(struct net_device *ndev)
 			stats->tx_bytes += skb->len;
 		}
 
-		dma_unmap_single(&ndev->dev, dma_unmap_addr(&tx_buff, addr),
-				 dma_unmap_len(&tx_buff, len), DMA_TO_DEVICE);
+		dma_unmap_single(&ndev->dev, dma_unmap_addr(tx_buff, addr),
+				 dma_unmap_len(tx_buff, len), DMA_TO_DEVICE);
 
 		/* return the sk_buff to system */
 		dev_kfree_skb_irq(skb);
@@ -204,7 +204,6 @@ static int arc_emac_rx(struct net_device *ndev, int budget)
 		struct net_device_stats *stats = &priv->stats;
 		struct buffer_state *rx_buff = &priv->rx_buff[*last_rx_bd];
 		struct arc_emac_bd *rxbd = &priv->rxbd[*last_rx_bd];
-		unsigned int buflen = EMAC_BUFFER_SIZE;
 		unsigned int pktlen, info = le32_to_cpu(rxbd->info);
 		struct sk_buff *skb;
 		dma_addr_t addr;
@@ -226,7 +225,7 @@ static int arc_emac_rx(struct net_device *ndev, int budget)
 				netdev_err(ndev, "incomplete packet received\n");
 
 			/* Return ownership to EMAC */
-			rxbd->info = cpu_to_le32(FOR_EMAC | buflen);
+			rxbd->info = cpu_to_le32(FOR_EMAC | EMAC_BUFFER_SIZE);
 			stats->rx_errors++;
 			stats->rx_length_errors++;
 			continue;
@@ -240,11 +239,12 @@ static int arc_emac_rx(struct net_device *ndev, int budget)
 		skb->dev = ndev;
 		skb->protocol = eth_type_trans(skb, ndev);
 
-		dma_unmap_single(&ndev->dev, dma_unmap_addr(&rx_buff, addr),
-				 dma_unmap_len(&rx_buff, len), DMA_FROM_DEVICE);
+		dma_unmap_single(&ndev->dev, dma_unmap_addr(rx_buff, addr),
+				 dma_unmap_len(rx_buff, len), DMA_FROM_DEVICE);
 
 		/* Prepare the BD for next cycle */
-		rx_buff->skb = netdev_alloc_skb_ip_align(ndev, buflen);
+		rx_buff->skb = netdev_alloc_skb_ip_align(ndev,
+							 EMAC_BUFFER_SIZE);
 		if (unlikely(!rx_buff->skb)) {
 			stats->rx_errors++;
 			/* Because receive_skb is below, increment rx_dropped */
@@ -256,7 +256,7 @@ static int arc_emac_rx(struct net_device *ndev, int budget)
 		netif_receive_skb(skb);
 
 		addr = dma_map_single(&ndev->dev, (void *)rx_buff->skb->data,
-				      buflen, DMA_FROM_DEVICE);
+				      EMAC_BUFFER_SIZE, DMA_FROM_DEVICE);
 		if (dma_mapping_error(&ndev->dev, addr)) {
 			if (net_ratelimit())
 				netdev_err(ndev, "cannot dma map\n");
@@ -264,16 +264,16 @@ static int arc_emac_rx(struct net_device *ndev, int budget)
 			stats->rx_errors++;
 			continue;
 		}
-		dma_unmap_addr_set(&rx_buff, mapping, addr);
-		dma_unmap_len_set(&rx_buff, len, buflen);
+		dma_unmap_addr_set(rx_buff, addr, addr);
+		dma_unmap_len_set(rx_buff, len, EMAC_BUFFER_SIZE);
 
-		rxbd->data = cpu_to_le32(rx_buff->skb->data);
+		rxbd->data = cpu_to_le32(addr);
 
 		/* Make sure pointer to data buffer is set */
 		wmb();
 
 		/* Return ownership to EMAC */
-		rxbd->info = cpu_to_le32(FOR_EMAC | buflen);
+		rxbd->info = cpu_to_le32(FOR_EMAC | EMAC_BUFFER_SIZE);
 	}
 
 	return work_done;
@@ -376,8 +376,6 @@ static int arc_emac_open(struct net_device *ndev)
 {
 	struct arc_emac_priv *priv = netdev_priv(ndev);
 	struct phy_device *phy_dev = priv->phy_dev;
-	struct arc_emac_bd *bd;
-	struct sk_buff *skb;
 	int i;
 
 	phy_dev->autoneg = AUTONEG_ENABLE;
@@ -395,25 +393,40 @@ static int arc_emac_open(struct net_device *ndev)
 		}
 	}
 
+	priv->last_rx_bd = 0;
+
 	/* Allocate and set buffers for Rx BD's */
-	bd = priv->rxbd;
 	for (i = 0; i < RX_BD_NUM; i++) {
-		skb = netdev_alloc_skb_ip_align(ndev, EMAC_BUFFER_SIZE);
-		if (unlikely(!skb))
+		dma_addr_t addr;
+		unsigned int *last_rx_bd = &priv->last_rx_bd;
+		struct arc_emac_bd *rxbd = &priv->rxbd[*last_rx_bd];
+		struct buffer_state *rx_buff = &priv->rx_buff[*last_rx_bd];
+
+		rx_buff->skb = netdev_alloc_skb_ip_align(ndev,
+							 EMAC_BUFFER_SIZE);
+		if (unlikely(!rx_buff->skb))
+			return -ENOMEM;
+
+		addr = dma_map_single(&ndev->dev, (void *)rx_buff->skb->data,
+				      EMAC_BUFFER_SIZE, DMA_FROM_DEVICE);
+		if (dma_mapping_error(&ndev->dev, addr)) {
+			netdev_err(ndev, "cannot dma map\n");
+			dev_kfree_skb(rx_buff->skb);
 			return -ENOMEM;
+		}
+		dma_unmap_addr_set(rx_buff, addr, addr);
+		dma_unmap_len_set(rx_buff, len, EMAC_BUFFER_SIZE);
 
-		priv->rx_buff[i].skb = skb;
-		bd->data = cpu_to_le32(skb->data);
+		rxbd->data = cpu_to_le32(addr);
 
 		/* Make sure pointer to data buffer is set */
 		wmb();
 
-		/* Set ownership to EMAC */
-		bd->info = cpu_to_le32(FOR_EMAC | EMAC_BUFFER_SIZE);
-		bd++;
-	}
+		/* Return ownership to EMAC */
+		rxbd->info = cpu_to_le32(FOR_EMAC | EMAC_BUFFER_SIZE);
 
-	priv->last_rx_bd = 0;
+		*last_rx_bd = (*last_rx_bd + 1) % RX_BD_NUM;
+	}
 
 	/* Clean Tx BD's */
 	memset(priv->txbd, 0, TX_RING_SZ);
@@ -543,11 +556,11 @@ static int arc_emac_tx(struct sk_buff *skb, struct net_device *ndev)
 		dev_kfree_skb(skb);
 		return NETDEV_TX_OK;
 	}
-	dma_unmap_addr_set(&priv->tx_buff[*txbd_curr], mapping, addr);
+	dma_unmap_addr_set(&priv->tx_buff[*txbd_curr], addr, addr);
 	dma_unmap_len_set(&priv->tx_buff[*txbd_curr], len, len);
 
 	priv->tx_buff[*txbd_curr].skb = skb;
-	priv->txbd[*txbd_curr].data = cpu_to_le32(skb->data);
+	priv->txbd[*txbd_curr].data = cpu_to_le32(addr);
 
 	/* Make sure pointer to data buffer is set */
 	wmb();
-- 
cgit v0.10.2


From bba54de5bdd107d3841b560f1a9cb0ed06e79533 Mon Sep 17 00:00:00 2001
From: Julian Anastasov <ja@ssi.bg>
Date: Sun, 16 Jun 2013 09:09:36 +0300
Subject: ipvs: provide iph to schedulers

Before now the schedulers needed access only to IP
addresses and it was easy to get them from skb by
using ip_vs_fill_iph_addr_only.

New changes for the SH scheduler will need the protocol
and ports which is difficult to get from skb for the
IPv6 case. As we have all the data in the iph structure,
to avoid the same slow lookups provide the iph to schedulers.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Hans Schillstrom <hans@schillstrom.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 4405886..f5faf85 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -197,31 +197,6 @@ ip_vs_fill_iph_skb(int af, const struct sk_buff *skb, struct ip_vs_iphdr *iphdr)
 	}
 }
 
-/* This function is a faster version of ip_vs_fill_iph_skb().
- * Where we only populate {s,d}addr (and avoid calling ipv6_find_hdr()).
- * This is used by the some of the ip_vs_*_schedule() functions.
- * (Mostly done to avoid ABI breakage of external schedulers)
- */
-static inline void
-ip_vs_fill_iph_addr_only(int af, const struct sk_buff *skb,
-			 struct ip_vs_iphdr *iphdr)
-{
-#ifdef CONFIG_IP_VS_IPV6
-	if (af == AF_INET6) {
-		const struct ipv6hdr *iph =
-			(struct ipv6hdr *)skb_network_header(skb);
-		iphdr->saddr.in6 = iph->saddr;
-		iphdr->daddr.in6 = iph->daddr;
-	} else
-#endif
-	{
-		const struct iphdr *iph =
-			(struct iphdr *)skb_network_header(skb);
-		iphdr->saddr.ip = iph->saddr;
-		iphdr->daddr.ip = iph->daddr;
-	}
-}
-
 static inline void ip_vs_addr_copy(int af, union nf_inet_addr *dst,
 				   const union nf_inet_addr *src)
 {
@@ -814,7 +789,8 @@ struct ip_vs_scheduler {
 
 	/* selecting a server from the given service */
 	struct ip_vs_dest* (*schedule)(struct ip_vs_service *svc,
-				       const struct sk_buff *skb);
+				       const struct sk_buff *skb,
+				       struct ip_vs_iphdr *iph);
 };
 
 /* The persistence engine object */
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 05565d2..e9b0330 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -305,7 +305,7 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
 		 * return *ignored=0 i.e. ICMP and NF_DROP
 		 */
 		sched = rcu_dereference(svc->scheduler);
-		dest = sched->schedule(svc, skb);
+		dest = sched->schedule(svc, skb, iph);
 		if (!dest) {
 			IP_VS_DBG(1, "p-schedule: no dest found.\n");
 			kfree(param.pe_data);
@@ -452,7 +452,7 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
 	}
 
 	sched = rcu_dereference(svc->scheduler);
-	dest = sched->schedule(svc, skb);
+	dest = sched->schedule(svc, skb, iph);
 	if (dest == NULL) {
 		IP_VS_DBG(1, "Schedule: no dest found.\n");
 		return NULL;
diff --git a/net/netfilter/ipvs/ip_vs_dh.c b/net/netfilter/ipvs/ip_vs_dh.c
index ccab120..c3b8454 100644
--- a/net/netfilter/ipvs/ip_vs_dh.c
+++ b/net/netfilter/ipvs/ip_vs_dh.c
@@ -214,18 +214,16 @@ static inline int is_overloaded(struct ip_vs_dest *dest)
  *      Destination hashing scheduling
  */
 static struct ip_vs_dest *
-ip_vs_dh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_dh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		  struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_dest *dest;
 	struct ip_vs_dh_state *s;
-	struct ip_vs_iphdr iph;
-
-	ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
 
 	IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
 
 	s = (struct ip_vs_dh_state *) svc->sched_data;
-	dest = ip_vs_dh_get(svc->af, s, &iph.daddr);
+	dest = ip_vs_dh_get(svc->af, s, &iph->daddr);
 	if (!dest
 	    || !(dest->flags & IP_VS_DEST_F_AVAILABLE)
 	    || atomic_read(&dest->weight) <= 0
@@ -235,7 +233,7 @@ ip_vs_dh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	}
 
 	IP_VS_DBG_BUF(6, "DH: destination IP address %s --> server %s:%d\n",
-		      IP_VS_DBG_ADDR(svc->af, &iph.daddr),
+		      IP_VS_DBG_ADDR(svc->af, &iph->daddr),
 		      IP_VS_DBG_ADDR(svc->af, &dest->addr),
 		      ntohs(dest->port));
 
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index 44595b8..1383b0e 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -487,19 +487,17 @@ is_overloaded(struct ip_vs_dest *dest, struct ip_vs_service *svc)
  *    Locality-Based (weighted) Least-Connection scheduling
  */
 static struct ip_vs_dest *
-ip_vs_lblc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_lblc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		    struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_lblc_table *tbl = svc->sched_data;
-	struct ip_vs_iphdr iph;
 	struct ip_vs_dest *dest = NULL;
 	struct ip_vs_lblc_entry *en;
 
-	ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
-
 	IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
 
 	/* First look in our cache */
-	en = ip_vs_lblc_get(svc->af, tbl, &iph.daddr);
+	en = ip_vs_lblc_get(svc->af, tbl, &iph->daddr);
 	if (en) {
 		/* We only hold a read lock, but this is atomic */
 		en->lastuse = jiffies;
@@ -529,12 +527,12 @@ ip_vs_lblc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	/* If we fail to create a cache entry, we'll just use the valid dest */
 	spin_lock_bh(&svc->sched_lock);
 	if (!tbl->dead)
-		ip_vs_lblc_new(tbl, &iph.daddr, dest);
+		ip_vs_lblc_new(tbl, &iph->daddr, dest);
 	spin_unlock_bh(&svc->sched_lock);
 
 out:
 	IP_VS_DBG_BUF(6, "LBLC: destination IP address %s --> server %s:%d\n",
-		      IP_VS_DBG_ADDR(svc->af, &iph.daddr),
+		      IP_VS_DBG_ADDR(svc->af, &iph->daddr),
 		      IP_VS_DBG_ADDR(svc->af, &dest->addr), ntohs(dest->port));
 
 	return dest;
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index 876937d..3cd85b2 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -655,19 +655,17 @@ is_overloaded(struct ip_vs_dest *dest, struct ip_vs_service *svc)
  *    Locality-Based (weighted) Least-Connection scheduling
  */
 static struct ip_vs_dest *
-ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		     struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_lblcr_table *tbl = svc->sched_data;
-	struct ip_vs_iphdr iph;
 	struct ip_vs_dest *dest;
 	struct ip_vs_lblcr_entry *en;
 
-	ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
-
 	IP_VS_DBG(6, "%s(): Scheduling...\n", __func__);
 
 	/* First look in our cache */
-	en = ip_vs_lblcr_get(svc->af, tbl, &iph.daddr);
+	en = ip_vs_lblcr_get(svc->af, tbl, &iph->daddr);
 	if (en) {
 		en->lastuse = jiffies;
 
@@ -718,12 +716,12 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	/* If we fail to create a cache entry, we'll just use the valid dest */
 	spin_lock_bh(&svc->sched_lock);
 	if (!tbl->dead)
-		ip_vs_lblcr_new(tbl, &iph.daddr, dest);
+		ip_vs_lblcr_new(tbl, &iph->daddr, dest);
 	spin_unlock_bh(&svc->sched_lock);
 
 out:
 	IP_VS_DBG_BUF(6, "LBLCR: destination IP address %s --> server %s:%d\n",
-		      IP_VS_DBG_ADDR(svc->af, &iph.daddr),
+		      IP_VS_DBG_ADDR(svc->af, &iph->daddr),
 		      IP_VS_DBG_ADDR(svc->af, &dest->addr), ntohs(dest->port));
 
 	return dest;
diff --git a/net/netfilter/ipvs/ip_vs_lc.c b/net/netfilter/ipvs/ip_vs_lc.c
index 5128e33..2bdcb1c 100644
--- a/net/netfilter/ipvs/ip_vs_lc.c
+++ b/net/netfilter/ipvs/ip_vs_lc.c
@@ -26,7 +26,8 @@
  *	Least Connection scheduling
  */
 static struct ip_vs_dest *
-ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		  struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_dest *dest, *least = NULL;
 	unsigned int loh = 0, doh;
diff --git a/net/netfilter/ipvs/ip_vs_nq.c b/net/netfilter/ipvs/ip_vs_nq.c
index 646cfd4..d8d9860 100644
--- a/net/netfilter/ipvs/ip_vs_nq.c
+++ b/net/netfilter/ipvs/ip_vs_nq.c
@@ -55,7 +55,8 @@ ip_vs_nq_dest_overhead(struct ip_vs_dest *dest)
  *	Weighted Least Connection scheduling
  */
 static struct ip_vs_dest *
-ip_vs_nq_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_nq_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		  struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_dest *dest, *least = NULL;
 	unsigned int loh = 0, doh;
diff --git a/net/netfilter/ipvs/ip_vs_rr.c b/net/netfilter/ipvs/ip_vs_rr.c
index c35986c..176b87c 100644
--- a/net/netfilter/ipvs/ip_vs_rr.c
+++ b/net/netfilter/ipvs/ip_vs_rr.c
@@ -55,7 +55,8 @@ static int ip_vs_rr_del_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest)
  * Round-Robin Scheduling
  */
 static struct ip_vs_dest *
-ip_vs_rr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_rr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		  struct ip_vs_iphdr *iph)
 {
 	struct list_head *p;
 	struct ip_vs_dest *dest, *last;
diff --git a/net/netfilter/ipvs/ip_vs_sed.c b/net/netfilter/ipvs/ip_vs_sed.c
index f320592..a5284cc 100644
--- a/net/netfilter/ipvs/ip_vs_sed.c
+++ b/net/netfilter/ipvs/ip_vs_sed.c
@@ -59,7 +59,8 @@ ip_vs_sed_dest_overhead(struct ip_vs_dest *dest)
  *	Weighted Least Connection scheduling
  */
 static struct ip_vs_dest *
-ip_vs_sed_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_sed_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		   struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_dest *dest, *least;
 	unsigned int loh, doh;
diff --git a/net/netfilter/ipvs/ip_vs_sh.c b/net/netfilter/ipvs/ip_vs_sh.c
index a65edfe4..e0d5d16 100644
--- a/net/netfilter/ipvs/ip_vs_sh.c
+++ b/net/netfilter/ipvs/ip_vs_sh.c
@@ -227,18 +227,16 @@ static inline int is_overloaded(struct ip_vs_dest *dest)
  *      Source Hashing scheduling
  */
 static struct ip_vs_dest *
-ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		  struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_dest *dest;
 	struct ip_vs_sh_state *s;
-	struct ip_vs_iphdr iph;
-
-	ip_vs_fill_iph_addr_only(svc->af, skb, &iph);
 
 	IP_VS_DBG(6, "ip_vs_sh_schedule(): Scheduling...\n");
 
 	s = (struct ip_vs_sh_state *) svc->sched_data;
-	dest = ip_vs_sh_get(svc->af, s, &iph.saddr);
+	dest = ip_vs_sh_get(svc->af, s, &iph->saddr);
 	if (!dest
 	    || !(dest->flags & IP_VS_DEST_F_AVAILABLE)
 	    || atomic_read(&dest->weight) <= 0
@@ -248,7 +246,7 @@ ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	}
 
 	IP_VS_DBG_BUF(6, "SH: source IP address %s --> server %s:%d\n",
-		      IP_VS_DBG_ADDR(svc->af, &iph.saddr),
+		      IP_VS_DBG_ADDR(svc->af, &iph->saddr),
 		      IP_VS_DBG_ADDR(svc->af, &dest->addr),
 		      ntohs(dest->port));
 
diff --git a/net/netfilter/ipvs/ip_vs_wlc.c b/net/netfilter/ipvs/ip_vs_wlc.c
index c60a81c..6dc1fa1 100644
--- a/net/netfilter/ipvs/ip_vs_wlc.c
+++ b/net/netfilter/ipvs/ip_vs_wlc.c
@@ -31,7 +31,8 @@
  *	Weighted Least Connection scheduling
  */
 static struct ip_vs_dest *
-ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		   struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_dest *dest, *least;
 	unsigned int loh, doh;
diff --git a/net/netfilter/ipvs/ip_vs_wrr.c b/net/netfilter/ipvs/ip_vs_wrr.c
index 0e68555..0546cd5 100644
--- a/net/netfilter/ipvs/ip_vs_wrr.c
+++ b/net/netfilter/ipvs/ip_vs_wrr.c
@@ -162,7 +162,8 @@ static int ip_vs_wrr_dest_changed(struct ip_vs_service *svc,
  *    Weighted Round-Robin Scheduling
  */
 static struct ip_vs_dest *
-ip_vs_wrr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
+ip_vs_wrr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
+		   struct ip_vs_iphdr *iph)
 {
 	struct ip_vs_dest *dest, *last, *stop = NULL;
 	struct ip_vs_wrr_mark *mark = svc->sched_data;
-- 
cgit v0.10.2


From c6c96c188336b2b95d5f14facd101f1e4165a9d3 Mon Sep 17 00:00:00 2001
From: Alexander Frolkin <avf@eldamar.org.uk>
Date: Thu, 13 Jun 2013 08:56:15 +0100
Subject: ipvs: sloppy TCP and SCTP

This adds support for sloppy TCP and SCTP modes to IPVS.

When enabled (sysctls net.ipv4.vs.sloppy_tcp and
net.ipv4.vs.sloppy_sctp), allows IPVS to create connection state on any
packet, not just a TCP SYN (or SCTP INIT).

This allows connections to fail over from one IPVS director to another
mid-flight.

Signed-off-by: Alexander Frolkin <avf@eldamar.org.uk>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index f5faf85..95860df 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -978,6 +978,8 @@ struct netns_ipvs {
 	int			sysctl_sync_sock_size;
 	int			sysctl_cache_bypass;
 	int			sysctl_expire_nodest_conn;
+	int			sysctl_sloppy_tcp;
+	int			sysctl_sloppy_sctp;
 	int			sysctl_expire_quiescent_template;
 	int			sysctl_sync_threshold[2];
 	unsigned int		sysctl_sync_refresh_period;
@@ -1020,6 +1022,8 @@ struct netns_ipvs {
 #define DEFAULT_SYNC_THRESHOLD	3
 #define DEFAULT_SYNC_PERIOD	50
 #define DEFAULT_SYNC_VER	1
+#define DEFAULT_SLOPPY_TCP	0
+#define DEFAULT_SLOPPY_SCTP	0
 #define DEFAULT_SYNC_REFRESH_PERIOD	(0U * HZ)
 #define DEFAULT_SYNC_RETRIES		0
 #define IPVS_SYNC_WAKEUP_RATE	8
@@ -1056,6 +1060,16 @@ static inline int sysctl_sync_ver(struct netns_ipvs *ipvs)
 	return ipvs->sysctl_sync_ver;
 }
 
+static inline int sysctl_sloppy_tcp(struct netns_ipvs *ipvs)
+{
+	return ipvs->sysctl_sloppy_tcp;
+}
+
+static inline int sysctl_sloppy_sctp(struct netns_ipvs *ipvs)
+{
+	return ipvs->sysctl_sloppy_sctp;
+}
+
 static inline int sysctl_sync_ports(struct netns_ipvs *ipvs)
 {
 	return ACCESS_ONCE(ipvs->sysctl_sync_ports);
@@ -1109,6 +1123,16 @@ static inline int sysctl_sync_ver(struct netns_ipvs *ipvs)
 	return DEFAULT_SYNC_VER;
 }
 
+static inline int sysctl_sloppy_tcp(struct netns_ipvs *ipvs)
+{
+	return DEFAULT_SLOPPY_TCP;
+}
+
+static inline int sysctl_sloppy_sctp(struct netns_ipvs *ipvs)
+{
+	return DEFAULT_SLOPPY_SCTP;
+}
+
 static inline int sysctl_sync_ports(struct netns_ipvs *ipvs)
 {
 	return 1;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 47e5108..da035fc 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1739,6 +1739,18 @@ static struct ctl_table vs_vars[] = {
 		.proc_handler	= proc_dointvec,
 	},
 	{
+		.procname	= "sloppy_tcp",
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
+		.procname	= "sloppy_sctp",
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
 		.procname	= "expire_quiescent_template",
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
@@ -3723,6 +3735,8 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
 	tbl[idx++].data = &ipvs->sysctl_sync_sock_size;
 	tbl[idx++].data = &ipvs->sysctl_cache_bypass;
 	tbl[idx++].data = &ipvs->sysctl_expire_nodest_conn;
+	tbl[idx++].data = &ipvs->sysctl_sloppy_tcp;
+	tbl[idx++].data = &ipvs->sysctl_sloppy_sctp;
 	tbl[idx++].data = &ipvs->sysctl_expire_quiescent_template;
 	ipvs->sysctl_sync_threshold[0] = DEFAULT_SYNC_THRESHOLD;
 	ipvs->sysctl_sync_threshold[1] = DEFAULT_SYNC_PERIOD;
diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index 8646488..df29d64 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -15,6 +15,7 @@ sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 {
 	struct net *net;
 	struct ip_vs_service *svc;
+	struct netns_ipvs *ipvs;
 	sctp_chunkhdr_t _schunkh, *sch;
 	sctp_sctphdr_t *sh, _sctph;
 
@@ -27,13 +28,14 @@ sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 	if (sch == NULL)
 		return 0;
 	net = skb_net(skb);
+	ipvs = net_ipvs(net);
 	rcu_read_lock();
-	if ((sch->type == SCTP_CID_INIT) &&
+	if ((sch->type == SCTP_CID_INIT || sysctl_sloppy_sctp(ipvs)) &&
 	    (svc = ip_vs_service_find(net, af, skb->mark, iph->protocol,
 				      &iph->daddr, sh->dest))) {
 		int ignored;
 
-		if (ip_vs_todrop(net_ipvs(net))) {
+		if (ip_vs_todrop(ipvs)) {
 			/*
 			 * It seems that we are very loaded.
 			 * We have to drop this packet :(
@@ -232,21 +234,21 @@ static struct ipvs_sctp_nextstate
 	 * STATE : IP_VS_SCTP_S_NONE
 	 */
 	/*next state *//*event */
-	{{IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_CLI */ },
+	{{IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_DATA_CLI */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
 	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
 	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
+	 {IP_VS_SCTP_S_INIT_ACK_CLI /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
+	 {IP_VS_SCTP_S_ECHO_CLI /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
+	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_CLI */ },
+	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_SHUT_CLI */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
+	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
 	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ },
diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
index 50a1594..e3a6972 100644
--- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
@@ -39,6 +39,7 @@ tcp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 	struct net *net;
 	struct ip_vs_service *svc;
 	struct tcphdr _tcph, *th;
+	struct netns_ipvs *ipvs;
 
 	th = skb_header_pointer(skb, iph->len, sizeof(_tcph), &_tcph);
 	if (th == NULL) {
@@ -46,14 +47,15 @@ tcp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 		return 0;
 	}
 	net = skb_net(skb);
+	ipvs = net_ipvs(net);
 	/* No !th->ack check to allow scheduling on SYN+ACK for Active FTP */
 	rcu_read_lock();
-	if (th->syn &&
+	if ((th->syn || sysctl_sloppy_tcp(ipvs)) && !th->rst &&
 	    (svc = ip_vs_service_find(net, af, skb->mark, iph->protocol,
 				      &iph->daddr, th->dest))) {
 		int ignored;
 
-		if (ip_vs_todrop(net_ipvs(net))) {
+		if (ip_vs_todrop(ipvs)) {
 			/*
 			 * It seems that we are very loaded.
 			 * We have to drop this packet :(
@@ -401,7 +403,7 @@ static struct tcp_states_t tcp_states [] = {
 /*        sNO, sES, sSS, sSR, sFW, sTW, sCL, sCW, sLA, sLI, sSA	*/
 /*syn*/ {{sSR, sES, sES, sSR, sSR, sSR, sSR, sSR, sSR, sSR, sSR }},
 /*fin*/ {{sCL, sCW, sSS, sTW, sTW, sTW, sCL, sCW, sLA, sLI, sTW }},
-/*ack*/ {{sCL, sES, sSS, sES, sFW, sTW, sCL, sCW, sCL, sLI, sES }},
+/*ack*/ {{sES, sES, sSS, sES, sFW, sTW, sCL, sCW, sCL, sLI, sES }},
 /*rst*/ {{sCL, sCL, sCL, sSR, sCL, sCL, sCL, sCL, sLA, sLI, sSR }},
 
 /*	OUTPUT */
@@ -415,7 +417,7 @@ static struct tcp_states_t tcp_states [] = {
 /*        sNO, sES, sSS, sSR, sFW, sTW, sCL, sCW, sLA, sLI, sSA	*/
 /*syn*/ {{sSR, sES, sES, sSR, sSR, sSR, sSR, sSR, sSR, sSR, sSR }},
 /*fin*/ {{sCL, sFW, sSS, sTW, sFW, sTW, sCL, sCW, sLA, sLI, sTW }},
-/*ack*/ {{sCL, sES, sSS, sES, sFW, sTW, sCL, sCW, sCL, sLI, sES }},
+/*ack*/ {{sES, sES, sSS, sES, sFW, sTW, sCL, sCW, sCL, sLI, sES }},
 /*rst*/ {{sCL, sCL, sCL, sSR, sCL, sCL, sCL, sCL, sLA, sLI, sCL }},
 };
 
@@ -424,7 +426,7 @@ static struct tcp_states_t tcp_states_dos [] = {
 /*        sNO, sES, sSS, sSR, sFW, sTW, sCL, sCW, sLA, sLI, sSA	*/
 /*syn*/ {{sSR, sES, sES, sSR, sSR, sSR, sSR, sSR, sSR, sSR, sSA }},
 /*fin*/ {{sCL, sCW, sSS, sTW, sTW, sTW, sCL, sCW, sLA, sLI, sSA }},
-/*ack*/ {{sCL, sES, sSS, sSR, sFW, sTW, sCL, sCW, sCL, sLI, sSA }},
+/*ack*/ {{sES, sES, sSS, sSR, sFW, sTW, sCL, sCW, sCL, sLI, sSA }},
 /*rst*/ {{sCL, sCL, sCL, sSR, sCL, sCL, sCL, sCL, sLA, sLI, sCL }},
 
 /*	OUTPUT */
@@ -438,7 +440,7 @@ static struct tcp_states_t tcp_states_dos [] = {
 /*        sNO, sES, sSS, sSR, sFW, sTW, sCL, sCW, sLA, sLI, sSA	*/
 /*syn*/ {{sSA, sES, sES, sSR, sSA, sSA, sSA, sSA, sSA, sSA, sSA }},
 /*fin*/ {{sCL, sFW, sSS, sTW, sFW, sTW, sCL, sCW, sLA, sLI, sTW }},
-/*ack*/ {{sCL, sES, sSS, sES, sFW, sTW, sCL, sCW, sCL, sLI, sES }},
+/*ack*/ {{sES, sES, sSS, sES, sFW, sTW, sCL, sCW, sCL, sLI, sES }},
 /*rst*/ {{sCL, sCL, sCL, sSR, sCL, sCL, sCL, sCL, sLA, sLI, sCL }},
 };
 
-- 
cgit v0.10.2


From 61e7c420b4b2a797ac209106ba743ab6ebe984d8 Mon Sep 17 00:00:00 2001
From: Julian Anastasov <ja@ssi.bg>
Date: Tue, 18 Jun 2013 10:08:07 +0300
Subject: ipvs: replace the SCTP state machine

Convert the SCTP state table, so that it is more readable.
Change the states to be according to the diagram in RFC 2960
and add more states suitable for middle box. Still, such
change in states adds incompatibility if systems in sync
setup include this change and others do not include it.

With this change we also have proper transitions in INPUT-ONLY
mode (DR/TUN) where we see packets only from client. Now
we should not switch to 10-second CLOSED state at a time
when we should stay in ESTABLISHED state.

The short names for states are because we have 16-char space
in ipvsadm and 11-char limit for the connection list format.
It is a sequence of the TCP implementation where the longest
state name is ESTABLISHED.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 95860df..e667df1 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -380,17 +380,18 @@ enum {
  */
 enum ip_vs_sctp_states {
 	IP_VS_SCTP_S_NONE,
-	IP_VS_SCTP_S_INIT_CLI,
-	IP_VS_SCTP_S_INIT_SER,
-	IP_VS_SCTP_S_INIT_ACK_CLI,
-	IP_VS_SCTP_S_INIT_ACK_SER,
-	IP_VS_SCTP_S_ECHO_CLI,
-	IP_VS_SCTP_S_ECHO_SER,
+	IP_VS_SCTP_S_INIT1,
+	IP_VS_SCTP_S_INIT,
+	IP_VS_SCTP_S_COOKIE_SENT,
+	IP_VS_SCTP_S_COOKIE_REPLIED,
+	IP_VS_SCTP_S_COOKIE_WAIT,
+	IP_VS_SCTP_S_COOKIE,
+	IP_VS_SCTP_S_COOKIE_ECHOED,
 	IP_VS_SCTP_S_ESTABLISHED,
-	IP_VS_SCTP_S_SHUT_CLI,
-	IP_VS_SCTP_S_SHUT_SER,
-	IP_VS_SCTP_S_SHUT_ACK_CLI,
-	IP_VS_SCTP_S_SHUT_ACK_SER,
+	IP_VS_SCTP_S_SHUTDOWN_SENT,
+	IP_VS_SCTP_S_SHUTDOWN_RECEIVED,
+	IP_VS_SCTP_S_SHUTDOWN_ACK_SENT,
+	IP_VS_SCTP_S_REJECTED,
 	IP_VS_SCTP_S_CLOSED,
 	IP_VS_SCTP_S_LAST
 };
diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index df29d64..3c0da87 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -185,710 +185,159 @@ sctp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp)
 	return 1;
 }
 
-struct ipvs_sctp_nextstate {
-	int next_state;
-};
 enum ipvs_sctp_event_t {
-	IP_VS_SCTP_EVE_DATA_CLI,
-	IP_VS_SCTP_EVE_DATA_SER,
-	IP_VS_SCTP_EVE_INIT_CLI,
-	IP_VS_SCTP_EVE_INIT_SER,
-	IP_VS_SCTP_EVE_INIT_ACK_CLI,
-	IP_VS_SCTP_EVE_INIT_ACK_SER,
-	IP_VS_SCTP_EVE_COOKIE_ECHO_CLI,
-	IP_VS_SCTP_EVE_COOKIE_ECHO_SER,
-	IP_VS_SCTP_EVE_COOKIE_ACK_CLI,
-	IP_VS_SCTP_EVE_COOKIE_ACK_SER,
-	IP_VS_SCTP_EVE_ABORT_CLI,
-	IP_VS_SCTP_EVE__ABORT_SER,
-	IP_VS_SCTP_EVE_SHUT_CLI,
-	IP_VS_SCTP_EVE_SHUT_SER,
-	IP_VS_SCTP_EVE_SHUT_ACK_CLI,
-	IP_VS_SCTP_EVE_SHUT_ACK_SER,
-	IP_VS_SCTP_EVE_SHUT_COM_CLI,
-	IP_VS_SCTP_EVE_SHUT_COM_SER,
-	IP_VS_SCTP_EVE_LAST
+	IP_VS_SCTP_DATA = 0,		/* DATA, SACK, HEARTBEATs */
+	IP_VS_SCTP_INIT,
+	IP_VS_SCTP_INIT_ACK,
+	IP_VS_SCTP_COOKIE_ECHO,
+	IP_VS_SCTP_COOKIE_ACK,
+	IP_VS_SCTP_SHUTDOWN,
+	IP_VS_SCTP_SHUTDOWN_ACK,
+	IP_VS_SCTP_SHUTDOWN_COMPLETE,
+	IP_VS_SCTP_ERROR,
+	IP_VS_SCTP_ABORT,
+	IP_VS_SCTP_EVENT_LAST
 };
 
-static enum ipvs_sctp_event_t sctp_events[256] = {
-	IP_VS_SCTP_EVE_DATA_CLI,
-	IP_VS_SCTP_EVE_INIT_CLI,
-	IP_VS_SCTP_EVE_INIT_ACK_CLI,
-	IP_VS_SCTP_EVE_DATA_CLI,
-	IP_VS_SCTP_EVE_DATA_CLI,
-	IP_VS_SCTP_EVE_DATA_CLI,
-	IP_VS_SCTP_EVE_ABORT_CLI,
-	IP_VS_SCTP_EVE_SHUT_CLI,
-	IP_VS_SCTP_EVE_SHUT_ACK_CLI,
-	IP_VS_SCTP_EVE_DATA_CLI,
-	IP_VS_SCTP_EVE_COOKIE_ECHO_CLI,
-	IP_VS_SCTP_EVE_COOKIE_ACK_CLI,
-	IP_VS_SCTP_EVE_DATA_CLI,
-	IP_VS_SCTP_EVE_DATA_CLI,
-	IP_VS_SCTP_EVE_SHUT_COM_CLI,
+/* RFC 2960, 3.2 Chunk Field Descriptions */
+static __u8 sctp_events[] = {
+	[SCTP_CID_DATA]			= IP_VS_SCTP_DATA,
+	[SCTP_CID_INIT]			= IP_VS_SCTP_INIT,
+	[SCTP_CID_INIT_ACK]		= IP_VS_SCTP_INIT_ACK,
+	[SCTP_CID_SACK]			= IP_VS_SCTP_DATA,
+	[SCTP_CID_HEARTBEAT]		= IP_VS_SCTP_DATA,
+	[SCTP_CID_HEARTBEAT_ACK]	= IP_VS_SCTP_DATA,
+	[SCTP_CID_ABORT]		= IP_VS_SCTP_ABORT,
+	[SCTP_CID_SHUTDOWN]		= IP_VS_SCTP_SHUTDOWN,
+	[SCTP_CID_SHUTDOWN_ACK]		= IP_VS_SCTP_SHUTDOWN_ACK,
+	[SCTP_CID_ERROR]		= IP_VS_SCTP_ERROR,
+	[SCTP_CID_COOKIE_ECHO]		= IP_VS_SCTP_COOKIE_ECHO,
+	[SCTP_CID_COOKIE_ACK]		= IP_VS_SCTP_COOKIE_ACK,
+	[SCTP_CID_ECN_ECNE]		= IP_VS_SCTP_DATA,
+	[SCTP_CID_ECN_CWR]		= IP_VS_SCTP_DATA,
+	[SCTP_CID_SHUTDOWN_COMPLETE]	= IP_VS_SCTP_SHUTDOWN_COMPLETE,
 };
 
-static struct ipvs_sctp_nextstate
- sctp_states_table[IP_VS_SCTP_S_LAST][IP_VS_SCTP_EVE_LAST] = {
-	/*
-	 * STATE : IP_VS_SCTP_S_NONE
-	 */
-	/*next state *//*event */
-	{{IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 {IP_VS_SCTP_S_INIT_ACK_CLI /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 {IP_VS_SCTP_S_ECHO_CLI /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ },
-	 },
-	/*
-	 * STATE : IP_VS_SCTP_S_INIT_CLI
-	 * Cient sent INIT and is waiting for reply from server(In ECHO_WAIT)
-	 */
-	{{IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_INIT_ACK_SER /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_ECHO_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_INIT_SER
-	 * Server sent INIT and waiting for INIT ACK from the client
-	 */
-	{{IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 {IP_VS_SCTP_S_INIT_ACK_CLI /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_INIT_ACK_CLI
-	 * Client sent INIT ACK and waiting for ECHO from the server
-	 */
-	{{IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * INIT_ACK has been resent by the client, let us stay is in
-	  * the same state
-	  */
-	 {IP_VS_SCTP_S_INIT_ACK_CLI /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 /*
-	  * INIT_ACK sent by the server, close the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * ECHO by client, it should not happen, close the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 /*
-	  * ECHO by server, this is what we are expecting, move to ECHO_SER
-	  */
-	 {IP_VS_SCTP_S_ECHO_SER /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, it should not happen, close the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 /*
-	  * Unexpected COOKIE ACK from server, staty in the same state
-	  */
-	 {IP_VS_SCTP_S_INIT_ACK_CLI /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_INIT_ACK_SER
-	 * Server sent INIT ACK and waiting for ECHO from the client
-	 */
-	{{IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * Unexpected INIT_ACK by the client, let us close the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 /*
-	  * INIT_ACK resent by the server, let us move to same state
-	  */
-	 {IP_VS_SCTP_S_INIT_ACK_SER /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * Client send the ECHO, this is what we are expecting,
-	  * move to ECHO_CLI
-	  */
-	 {IP_VS_SCTP_S_ECHO_CLI /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 /*
-	  * ECHO received from the server, Not sure what to do,
-	  * let us close it
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, let us stay in the same state
-	  */
-	 {IP_VS_SCTP_S_INIT_ACK_SER /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 /*
-	  * COOKIE ACK from server, hmm... this should not happen, lets close
-	  * the connection.
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_ECHO_CLI
-	 * Cient  sent ECHO and waiting COOKEI ACK from the Server
-	 */
-	{{IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * INIT_ACK has been by the client, let us close the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 /*
-	  * INIT_ACK sent by the server, Unexpected INIT ACK, spec says,
-	  * “If an INIT ACK is received by an endpoint in any state other
-	  * than the COOKIE-WAIT state, the endpoint should discard the
-	  * INIT ACK chunk”. Stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ECHO_CLI /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * Client resent the ECHO, let us stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ECHO_CLI /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 /*
-	  * ECHO received from the server, Not sure what to do,
-	  * let us close it
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, this shoud not happen, let's close the
-	  * connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 /*
-	  * COOKIE ACK from server, this is what we are awaiting,lets move to
-	  * ESTABLISHED.
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_ECHO_SER
-	 * Server sent ECHO and waiting COOKEI ACK from the client
-	 */
-	{{IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * INIT_ACK sent by the server, Unexpected INIT ACK, spec says,
-	  * “If an INIT ACK is received by an endpoint in any state other
-	  * than the COOKIE-WAIT state, the endpoint should discard the
-	  * INIT ACK chunk”. Stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ECHO_SER /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 /*
-	  * INIT_ACK has been by the server, let us close the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * Client sent the ECHO, not sure what to do, let's close the
-	  * connection.
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 /*
-	  * ECHO resent by the server, stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ECHO_SER /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, this is what we are expecting, let's move
-	  * to ESTABLISHED.
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 /*
-	  * COOKIE ACK from server, this should not happen, lets close the
-	  * connection.
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_ESTABLISHED
-	 * Association established
-	 */
-	{{IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * INIT_ACK sent by the server, Unexpected INIT ACK, spec says,
-	  * “If an INIT ACK is received by an endpoint in any state other
-	  * than the COOKIE-WAIT state, the endpoint should discard the
-	  * INIT ACK chunk”. Stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * Client sent ECHO, Spec(sec 5.2.4) says it may be handled by the
-	  * peer and peer shall move to the ESTABISHED. if it doesn't handle
-	  * it will send ERROR chunk. So, stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, not sure what to do stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 /*
-	  * SHUTDOWN from the client, move to SHUDDOWN_CLI
-	  */
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 /*
-	  * SHUTDOWN from the server, move to SHUTDOWN_SER
-	  */
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 /*
-	  * client sent SHUDTDOWN_ACK, this should not happen, let's close
-	  * the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_SHUT_CLI
-	 * SHUTDOWN sent from the client, waitinf for SHUT ACK from the server
-	 */
-	/*
-	 * We received the data chuck, keep the state unchanged. I assume
-	 * that still data chuncks  can be received by both the peers in
-	 * SHUDOWN state
-	 */
-
-	{{IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * INIT_ACK sent by the server, Unexpected INIT ACK, spec says,
-	  * “If an INIT ACK is received by an endpoint in any state other
-	  * than the COOKIE-WAIT state, the endpoint should discard the
-	  * INIT ACK chunk”. Stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * Client sent ECHO, Spec(sec 5.2.4) says it may be handled by the
-	  * peer and peer shall move to the ESTABISHED. if it doesn't handle
-	  * it will send ERROR chunk. So, stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, not sure what to do stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 /*
-	  * SHUTDOWN resent from the client, move to SHUDDOWN_CLI
-	  */
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 /*
-	  * SHUTDOWN from the server, move to SHUTDOWN_SER
-	  */
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 /*
-	  * client sent SHUDTDOWN_ACK, this should not happen, let's close
-	  * the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 /*
-	  * Server sent SHUTDOWN ACK, this is what we are expecting, let's move
-	  * to SHUDOWN_ACK_SER
-	  */
-	 {IP_VS_SCTP_S_SHUT_ACK_SER /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 /*
-	  * SHUTDOWN COM from client, this should not happen, let's close the
-	  * connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_SHUT_SER
-	 * SHUTDOWN sent from the server, waitinf for SHUTDOWN ACK from client
-	 */
-	/*
-	 * We received the data chuck, keep the state unchanged. I assume
-	 * that still data chuncks  can be received by both the peers in
-	 * SHUDOWN state
-	 */
-
-	{{IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * INIT_ACK sent by the server, Unexpected INIT ACK, spec says,
-	  * “If an INIT ACK is received by an endpoint in any state other
-	  * than the COOKIE-WAIT state, the endpoint should discard the
-	  * INIT ACK chunk”. Stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * Client sent ECHO, Spec(sec 5.2.4) says it may be handled by the
-	  * peer and peer shall move to the ESTABISHED. if it doesn't handle
-	  * it will send ERROR chunk. So, stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, not sure what to do stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 /*
-	  * SHUTDOWN resent from the client, move to SHUDDOWN_CLI
-	  */
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 /*
-	  * SHUTDOWN resent from the server, move to SHUTDOWN_SER
-	  */
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 /*
-	  * client sent SHUDTDOWN_ACK, this is what we are expecting, let's
-	  * move to SHUT_ACK_CLI
-	  */
-	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 /*
-	  * Server sent SHUTDOWN ACK, this should not happen, let's close the
-	  * connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 /*
-	  * SHUTDOWN COM from client, this should not happen, let's close the
-	  * connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-
-	/*
-	 * State : IP_VS_SCTP_S_SHUT_ACK_CLI
-	 * SHUTDOWN ACK from the client, awaiting for SHUTDOWN COM from server
-	 */
-	/*
-	 * We received the data chuck, keep the state unchanged. I assume
-	 * that still data chuncks  can be received by both the peers in
-	 * SHUDOWN state
-	 */
-
-	{{IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * INIT_ACK sent by the server, Unexpected INIT ACK, spec says,
-	  * “If an INIT ACK is received by an endpoint in any state other
-	  * than the COOKIE-WAIT state, the endpoint should discard the
-	  * INIT ACK chunk”. Stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * Client sent ECHO, Spec(sec 5.2.4) says it may be handled by the
-	  * peer and peer shall move to the ESTABISHED. if it doesn't handle
-	  * it will send ERROR chunk. So, stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, not sure what to do stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 /*
-	  * SHUTDOWN sent from the client, move to SHUDDOWN_CLI
-	  */
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 /*
-	  * SHUTDOWN sent from the server, move to SHUTDOWN_SER
-	  */
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 /*
-	  * client resent SHUDTDOWN_ACK, let's stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_ACK_CLI /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 /*
-	  * Server sent SHUTDOWN ACK, this should not happen, let's close the
-	  * connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 /*
-	  * SHUTDOWN COM from client, this should not happen, let's close the
-	  * connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 /*
-	  * SHUTDOWN COMPLETE from server this is what we are expecting.
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-
-	/*
-	 * State : IP_VS_SCTP_S_SHUT_ACK_SER
-	 * SHUTDOWN ACK from the server, awaiting for SHUTDOWN COM from client
-	 */
-	/*
-	 * We received the data chuck, keep the state unchanged. I assume
-	 * that still data chuncks  can be received by both the peers in
-	 * SHUDOWN state
-	 */
+/* SCTP States:
+ * See RFC 2960, 4. SCTP Association State Diagram
+ *
+ * New states (not in diagram):
+ * - INIT1 state: use shorter timeout for dropped INIT packets
+ * - REJECTED state: use shorter timeout if INIT is rejected with ABORT
+ * - INIT, COOKIE_SENT, COOKIE_REPLIED, COOKIE states: for better debugging
+ *
+ * The states are as seen in real server. In the diagram, INIT1, INIT,
+ * COOKIE_SENT and COOKIE_REPLIED processing happens in CLOSED state.
+ *
+ * States as per packets from client (C) and server (S):
+ *
+ * Setup of client connection:
+ * IP_VS_SCTP_S_INIT1: First C:INIT sent, wait for S:INIT-ACK
+ * IP_VS_SCTP_S_INIT: Next C:INIT sent, wait for S:INIT-ACK
+ * IP_VS_SCTP_S_COOKIE_SENT: S:INIT-ACK sent, wait for C:COOKIE-ECHO
+ * IP_VS_SCTP_S_COOKIE_REPLIED: C:COOKIE-ECHO sent, wait for S:COOKIE-ACK
+ *
+ * Setup of server connection:
+ * IP_VS_SCTP_S_COOKIE_WAIT: S:INIT sent, wait for C:INIT-ACK
+ * IP_VS_SCTP_S_COOKIE: C:INIT-ACK sent, wait for S:COOKIE-ECHO
+ * IP_VS_SCTP_S_COOKIE_ECHOED: S:COOKIE-ECHO sent, wait for C:COOKIE-ACK
+ */
 
-	{{IP_VS_SCTP_S_SHUT_ACK_SER /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_ACK_SER /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 /*
-	  * We have got an INIT from client. From the spec.“Upon receipt of
-	  * an INIT in the COOKIE-WAIT state, an endpoint MUST respond with
-	  * an INIT ACK using the same parameters it sent in its  original
-	  * INIT chunk (including its Initiate Tag, unchanged”).
-	  */
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 /*
-	  * INIT_ACK sent by the server, Unexpected INIT ACK, spec says,
-	  * “If an INIT ACK is received by an endpoint in any state other
-	  * than the COOKIE-WAIT state, the endpoint should discard the
-	  * INIT ACK chunk”. Stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_ACK_SER /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_ACK_SER /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 /*
-	  * Client sent ECHO, Spec(sec 5.2.4) says it may be handled by the
-	  * peer and peer shall move to the ESTABISHED. if it doesn't handle
-	  * it will send ERROR chunk. So, stay in the same state
-	  */
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_ESTABLISHED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 /*
-	  * COOKIE ACK from client, not sure what to do stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_ACK_SER /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_SHUT_ACK_SER /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 /*
-	  * SHUTDOWN sent from the client, move to SHUDDOWN_CLI
-	  */
-	 {IP_VS_SCTP_S_SHUT_CLI /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 /*
-	  * SHUTDOWN sent from the server, move to SHUTDOWN_SER
-	  */
-	 {IP_VS_SCTP_S_SHUT_SER /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 /*
-	  * client sent SHUDTDOWN_ACK, this should not happen let's close
-	  * the connection.
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 /*
-	  * Server resent SHUTDOWN ACK, stay in the same state
-	  */
-	 {IP_VS_SCTP_S_SHUT_ACK_SER /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 /*
-	  * SHUTDOWN COM from client, this what we are expecting, let's close
-	  * the connection
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 /*
-	  * SHUTDOWN COMPLETE from server this should not happen.
-	  */
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 },
-	/*
-	 * State : IP_VS_SCTP_S_CLOSED
-	 */
-	{{IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_DATA_SER */ },
-	 {IP_VS_SCTP_S_INIT_CLI /* IP_VS_SCTP_EVE_INIT_CLI */ },
-	 {IP_VS_SCTP_S_INIT_SER /* IP_VS_SCTP_EVE_INIT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_INIT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ECHO_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_COOKIE_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_ABORT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_ACK_SER */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_CLI */ },
-	 {IP_VS_SCTP_S_CLOSED /* IP_VS_SCTP_EVE_SHUT_COM_SER */ }
-	 }
+#define sNO IP_VS_SCTP_S_NONE
+#define sI1 IP_VS_SCTP_S_INIT1
+#define sIN IP_VS_SCTP_S_INIT
+#define sCS IP_VS_SCTP_S_COOKIE_SENT
+#define sCR IP_VS_SCTP_S_COOKIE_REPLIED
+#define sCW IP_VS_SCTP_S_COOKIE_WAIT
+#define sCO IP_VS_SCTP_S_COOKIE
+#define sCE IP_VS_SCTP_S_COOKIE_ECHOED
+#define sES IP_VS_SCTP_S_ESTABLISHED
+#define sSS IP_VS_SCTP_S_SHUTDOWN_SENT
+#define sSR IP_VS_SCTP_S_SHUTDOWN_RECEIVED
+#define sSA IP_VS_SCTP_S_SHUTDOWN_ACK_SENT
+#define sRJ IP_VS_SCTP_S_REJECTED
+#define sCL IP_VS_SCTP_S_CLOSED
+
+static const __u8 sctp_states
+	[IP_VS_DIR_LAST][IP_VS_SCTP_EVENT_LAST][IP_VS_SCTP_S_LAST] = {
+	{ /* INPUT */
+/*        sNO, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL*/
+/* d   */{sES, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* i   */{sI1, sIN, sIN, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sIN, sIN},
+/* i_a */{sCW, sCW, sCW, sCS, sCR, sCO, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* c_e */{sCR, sIN, sIN, sCR, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* c_a */{sES, sI1, sIN, sCS, sCR, sCW, sCO, sES, sES, sSS, sSR, sSA, sRJ, sCL},
+/* s   */{sSR, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sSR, sSS, sSR, sSA, sRJ, sCL},
+/* s_a */{sCL, sIN, sIN, sCS, sCR, sCW, sCO, sCE, sES, sCL, sSR, sCL, sRJ, sCL},
+/* s_c */{sCL, sCL, sCL, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sCL, sRJ, sCL},
+/* err */{sCL, sI1, sIN, sCS, sCR, sCW, sCO, sCL, sES, sSS, sSR, sSA, sRJ, sCL},
+/* ab  */{sCL, sCL, sCL, sCL, sCL, sRJ, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL},
+	},
+	{ /* OUTPUT */
+/*        sNO, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL*/
+/* d   */{sES, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* i   */{sCW, sCW, sCW, sCW, sCW, sCW, sCW, sCW, sES, sCW, sCW, sCW, sCW, sCW},
+/* i_a */{sCS, sCS, sCS, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* c_e */{sCE, sCE, sCE, sCE, sCE, sCE, sCE, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* c_a */{sES, sES, sES, sES, sES, sES, sES, sES, sES, sSS, sSR, sSA, sRJ, sCL},
+/* s   */{sSS, sSS, sSS, sSS, sSS, sSS, sSS, sSS, sSS, sSS, sSR, sSA, sRJ, sCL},
+/* s_a */{sSA, sSA, sSA, sSA, sSA, sCW, sCO, sCE, sES, sSA, sSA, sSA, sRJ, sCL},
+/* s_c */{sCL, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* err */{sCL, sCL, sCL, sCL, sCL, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* ab  */{sCL, sRJ, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL},
+	},
+	{ /* INPUT-ONLY */
+/*        sNO, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL*/
+/* d   */{sES, sI1, sIN, sCS, sCR, sES, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* i   */{sI1, sIN, sIN, sIN, sIN, sIN, sCO, sCE, sES, sSS, sSR, sSA, sIN, sIN},
+/* i_a */{sCE, sCE, sCE, sCE, sCE, sCE, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* c_e */{sES, sES, sES, sES, sES, sES, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* c_a */{sES, sI1, sIN, sES, sES, sCW, sES, sES, sES, sSS, sSR, sSA, sRJ, sCL},
+/* s   */{sSR, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sSR, sSS, sSR, sSA, sRJ, sCL},
+/* s_a */{sCL, sIN, sIN, sCS, sCR, sCW, sCO, sCE, sCL, sCL, sSR, sCL, sRJ, sCL},
+/* s_c */{sCL, sCL, sCL, sCL, sCL, sCW, sCO, sCE, sES, sSS, sCL, sCL, sRJ, sCL},
+/* err */{sCL, sI1, sIN, sCS, sCR, sCW, sCO, sCE, sES, sSS, sSR, sSA, sRJ, sCL},
+/* ab  */{sCL, sCL, sCL, sCL, sCL, sRJ, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL},
+	},
 };
 
-/*
- *      Timeout table[state]
- */
+#define IP_VS_SCTP_MAX_RTO	((60 + 1) * HZ)
+
+/* Timeout table[state] */
 static const int sctp_timeouts[IP_VS_SCTP_S_LAST + 1] = {
-	[IP_VS_SCTP_S_NONE]         =     2 * HZ,
-	[IP_VS_SCTP_S_INIT_CLI]     =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_INIT_SER]     =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_INIT_ACK_CLI] =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_INIT_ACK_SER] =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_ECHO_CLI]     =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_ECHO_SER]     =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_ESTABLISHED]  =    15 * 60 * HZ,
-	[IP_VS_SCTP_S_SHUT_CLI]     =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_SHUT_SER]     =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_SHUT_ACK_CLI] =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_SHUT_ACK_SER] =     1 * 60 * HZ,
-	[IP_VS_SCTP_S_CLOSED]       =    10 * HZ,
-	[IP_VS_SCTP_S_LAST]         =     2 * HZ,
+	[IP_VS_SCTP_S_NONE]			= 2 * HZ,
+	[IP_VS_SCTP_S_INIT1]			= (0 + 3 + 1) * HZ,
+	[IP_VS_SCTP_S_INIT]			= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_COOKIE_SENT]		= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_COOKIE_REPLIED]		= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_COOKIE_WAIT]		= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_COOKIE]			= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_COOKIE_ECHOED]		= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_ESTABLISHED]		= 15 * 60 * HZ,
+	[IP_VS_SCTP_S_SHUTDOWN_SENT]		= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_SHUTDOWN_RECEIVED]	= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_SHUTDOWN_ACK_SENT]	= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_REJECTED]			= (0 + 3 + 1) * HZ,
+	[IP_VS_SCTP_S_CLOSED]			= IP_VS_SCTP_MAX_RTO,
+	[IP_VS_SCTP_S_LAST]			= 2 * HZ,
 };
 
 static const char *sctp_state_name_table[IP_VS_SCTP_S_LAST + 1] = {
-	[IP_VS_SCTP_S_NONE]         =    "NONE",
-	[IP_VS_SCTP_S_INIT_CLI]     =    "INIT_CLI",
-	[IP_VS_SCTP_S_INIT_SER]     =    "INIT_SER",
-	[IP_VS_SCTP_S_INIT_ACK_CLI] =    "INIT_ACK_CLI",
-	[IP_VS_SCTP_S_INIT_ACK_SER] =    "INIT_ACK_SER",
-	[IP_VS_SCTP_S_ECHO_CLI]     =    "COOKIE_ECHO_CLI",
-	[IP_VS_SCTP_S_ECHO_SER]     =    "COOKIE_ECHO_SER",
-	[IP_VS_SCTP_S_ESTABLISHED]  =    "ESTABISHED",
-	[IP_VS_SCTP_S_SHUT_CLI]     =    "SHUTDOWN_CLI",
-	[IP_VS_SCTP_S_SHUT_SER]     =    "SHUTDOWN_SER",
-	[IP_VS_SCTP_S_SHUT_ACK_CLI] =    "SHUTDOWN_ACK_CLI",
-	[IP_VS_SCTP_S_SHUT_ACK_SER] =    "SHUTDOWN_ACK_SER",
-	[IP_VS_SCTP_S_CLOSED]       =    "CLOSED",
-	[IP_VS_SCTP_S_LAST]         =    "BUG!"
+	[IP_VS_SCTP_S_NONE]			= "NONE",
+	[IP_VS_SCTP_S_INIT1]			= "INIT1",
+	[IP_VS_SCTP_S_INIT]			= "INIT",
+	[IP_VS_SCTP_S_COOKIE_SENT]		= "C-SENT",
+	[IP_VS_SCTP_S_COOKIE_REPLIED]		= "C-REPLIED",
+	[IP_VS_SCTP_S_COOKIE_WAIT]		= "C-WAIT",
+	[IP_VS_SCTP_S_COOKIE]			= "COOKIE",
+	[IP_VS_SCTP_S_COOKIE_ECHOED]		= "C-ECHOED",
+	[IP_VS_SCTP_S_ESTABLISHED]		= "ESTABLISHED",
+	[IP_VS_SCTP_S_SHUTDOWN_SENT]		= "S-SENT",
+	[IP_VS_SCTP_S_SHUTDOWN_RECEIVED]	= "S-RECEIVED",
+	[IP_VS_SCTP_S_SHUTDOWN_ACK_SENT]	= "S-ACK-SENT",
+	[IP_VS_SCTP_S_REJECTED]			= "REJECTED",
+	[IP_VS_SCTP_S_CLOSED]			= "CLOSED",
+	[IP_VS_SCTP_S_LAST]			= "BUG!",
 };
 
 
@@ -945,17 +394,20 @@ set_sctp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
 		}
 	}
 
-	event = sctp_events[chunk_type];
+	event = (chunk_type < sizeof(sctp_events)) ?
+		sctp_events[chunk_type] : IP_VS_SCTP_DATA;
 
-	/*
-	 *  If the direction is IP_VS_DIR_OUTPUT, this event is from server
-	 */
-	if (direction == IP_VS_DIR_OUTPUT)
-		event++;
-	/*
-	 * get next state
+	/* Update direction to INPUT_ONLY if necessary
+	 * or delete NO_OUTPUT flag if output packet detected
 	 */
-	next_state = sctp_states_table[cp->state][event].next_state;
+	if (cp->flags & IP_VS_CONN_F_NOOUTPUT) {
+		if (direction == IP_VS_DIR_OUTPUT)
+			cp->flags &= ~IP_VS_CONN_F_NOOUTPUT;
+		else
+			direction = IP_VS_DIR_INPUT_ONLY;
+	}
+
+	next_state = sctp_states[direction][event][cp->state];
 
 	if (next_state != cp->state) {
 		struct ip_vs_dest *dest = cp->dest;
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index f6046d9..2fc6639 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -461,9 +461,10 @@ static int ip_vs_sync_conn_needed(struct netns_ipvs *ipvs,
 	} else if (unlikely(cp->protocol == IPPROTO_SCTP)) {
 		if (!((1 << cp->state) &
 		      ((1 << IP_VS_SCTP_S_ESTABLISHED) |
-		       (1 << IP_VS_SCTP_S_CLOSED) |
-		       (1 << IP_VS_SCTP_S_SHUT_ACK_CLI) |
-		       (1 << IP_VS_SCTP_S_SHUT_ACK_SER))))
+		       (1 << IP_VS_SCTP_S_SHUTDOWN_SENT) |
+		       (1 << IP_VS_SCTP_S_SHUTDOWN_RECEIVED) |
+		       (1 << IP_VS_SCTP_S_SHUTDOWN_ACK_SENT) |
+		       (1 << IP_VS_SCTP_S_CLOSED))))
 			return 0;
 		force = cp->state != cp->old_state;
 		if (force && cp->state != IP_VS_SCTP_S_ESTABLISHED)
-- 
cgit v0.10.2


From acaac5d8bbedf6bd96f53960780942e1ad90d70e Mon Sep 17 00:00:00 2001
From: Julian Anastasov <ja@ssi.bg>
Date: Tue, 18 Jun 2013 10:08:08 +0300
Subject: ipvs: drop SCTP connections depending on state

Drop SCTP connections under load (dropentry context) depending
on the protocol state, just like for TCP: INIT conns are
dropped immediately, established are dropped randomly while
connections in progress or shutdown are skipped.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index c8c52a9..4c8e5c0 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -1231,6 +1231,18 @@ void ip_vs_random_dropentry(struct net *net)
 				default:
 					continue;
 				}
+			} else if (cp->protocol == IPPROTO_SCTP) {
+				switch (cp->state) {
+				case IP_VS_SCTP_S_INIT1:
+				case IP_VS_SCTP_S_INIT:
+					break;
+				case IP_VS_SCTP_S_ESTABLISHED:
+					if (todrop_entry(cp))
+						break;
+					continue;
+				default:
+					continue;
+				}
 			} else {
 				if (!todrop_entry(cp))
 					continue;
-- 
cgit v0.10.2


From eba3b5a78799d21dea05118b294524958f0ab592 Mon Sep 17 00:00:00 2001
From: Alexander Frolkin <avf@eldamar.org.uk>
Date: Wed, 19 Jun 2013 10:54:25 +0100
Subject: ipvs: SH fallback and L4 hashing

By default the SH scheduler rejects connections that are hashed onto a
realserver of weight 0.  This patch adds a flag to make SH choose a
different realserver in this case, instead of rejecting the connection.

The patch also adds a flag to make SH include the source port (TCP, UDP,
SCTP) in the hash as well as the source address.  This basically allows
for deterministic round-robin load balancing (i.e., where any director
in a cluster of directors with identical config will send the same
packet the same way).

The flags are service flags (IP_VS_SVC_F_SCHED*) so that these options
can be set per service.  They are set using a new option to ipvsadm.

Signed-off-by: Alexander Frolkin <avf@eldamar.org.uk>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/include/uapi/linux/ip_vs.h b/include/uapi/linux/ip_vs.h
index a245377..2945822 100644
--- a/include/uapi/linux/ip_vs.h
+++ b/include/uapi/linux/ip_vs.h
@@ -20,6 +20,12 @@
 #define IP_VS_SVC_F_PERSISTENT	0x0001		/* persistent port */
 #define IP_VS_SVC_F_HASHED	0x0002		/* hashed entry */
 #define IP_VS_SVC_F_ONEPACKET	0x0004		/* one-packet scheduling */
+#define IP_VS_SVC_F_SCHED1	0x0008		/* scheduler flag 1 */
+#define IP_VS_SVC_F_SCHED2	0x0010		/* scheduler flag 2 */
+#define IP_VS_SVC_F_SCHED3	0x0020		/* scheduler flag 3 */
+
+#define IP_VS_SVC_F_SCHED_SH_FALLBACK	IP_VS_SVC_F_SCHED1 /* SH fallback */
+#define IP_VS_SVC_F_SCHED_SH_PORT	IP_VS_SVC_F_SCHED2 /* SH use port */
 
 /*
  *      Destination Server Flags
diff --git a/net/netfilter/ipvs/ip_vs_sh.c b/net/netfilter/ipvs/ip_vs_sh.c
index e0d5d16..f16c027 100644
--- a/net/netfilter/ipvs/ip_vs_sh.c
+++ b/net/netfilter/ipvs/ip_vs_sh.c
@@ -48,6 +48,10 @@
 
 #include <net/ip_vs.h>
 
+#include <net/tcp.h>
+#include <linux/udp.h>
+#include <linux/sctp.h>
+
 
 /*
  *      IPVS SH bucket
@@ -71,10 +75,19 @@ struct ip_vs_sh_state {
 	struct ip_vs_sh_bucket		buckets[IP_VS_SH_TAB_SIZE];
 };
 
+/* Helper function to determine if server is unavailable */
+static inline bool is_unavailable(struct ip_vs_dest *dest)
+{
+	return atomic_read(&dest->weight) <= 0 ||
+	       dest->flags & IP_VS_DEST_F_OVERLOAD;
+}
+
 /*
  *	Returns hash value for IPVS SH entry
  */
-static inline unsigned int ip_vs_sh_hashkey(int af, const union nf_inet_addr *addr)
+static inline unsigned int
+ip_vs_sh_hashkey(int af, const union nf_inet_addr *addr,
+		 __be16 port, unsigned int offset)
 {
 	__be32 addr_fold = addr->ip;
 
@@ -83,7 +96,8 @@ static inline unsigned int ip_vs_sh_hashkey(int af, const union nf_inet_addr *ad
 		addr_fold = addr->ip6[0]^addr->ip6[1]^
 			    addr->ip6[2]^addr->ip6[3];
 #endif
-	return (ntohl(addr_fold)*2654435761UL) & IP_VS_SH_TAB_MASK;
+	return (offset + (ntohs(port) + ntohl(addr_fold))*2654435761UL) &
+		IP_VS_SH_TAB_MASK;
 }
 
 
@@ -91,12 +105,42 @@ static inline unsigned int ip_vs_sh_hashkey(int af, const union nf_inet_addr *ad
  *      Get ip_vs_dest associated with supplied parameters.
  */
 static inline struct ip_vs_dest *
-ip_vs_sh_get(int af, struct ip_vs_sh_state *s, const union nf_inet_addr *addr)
+ip_vs_sh_get(struct ip_vs_service *svc, struct ip_vs_sh_state *s,
+	     const union nf_inet_addr *addr, __be16 port)
 {
-	return rcu_dereference(s->buckets[ip_vs_sh_hashkey(af, addr)].dest);
+	unsigned int hash = ip_vs_sh_hashkey(svc->af, addr, port, 0);
+	struct ip_vs_dest *dest = rcu_dereference(s->buckets[hash].dest);
+
+	return (!dest || is_unavailable(dest)) ? NULL : dest;
 }
 
 
+/* As ip_vs_sh_get, but with fallback if selected server is unavailable */
+static inline struct ip_vs_dest *
+ip_vs_sh_get_fallback(struct ip_vs_service *svc, struct ip_vs_sh_state *s,
+		      const union nf_inet_addr *addr, __be16 port)
+{
+	unsigned int offset;
+	unsigned int hash;
+	struct ip_vs_dest *dest;
+
+	for (offset = 0; offset < IP_VS_SH_TAB_SIZE; offset++) {
+		hash = ip_vs_sh_hashkey(svc->af, addr, port, offset);
+		dest = rcu_dereference(s->buckets[hash].dest);
+		if (!dest)
+			break;
+		if (is_unavailable(dest))
+			IP_VS_DBG_BUF(6, "SH: selected unavailable server "
+				      "%s:%d (offset %d)",
+				      IP_VS_DBG_ADDR(svc->af, &dest->addr),
+				      ntohs(dest->port), offset);
+		else
+			return dest;
+	}
+
+	return NULL;
+}
+
 /*
  *      Assign all the hash buckets of the specified table with the service.
  */
@@ -213,13 +257,33 @@ static int ip_vs_sh_dest_changed(struct ip_vs_service *svc,
 }
 
 
-/*
- *      If the dest flags is set with IP_VS_DEST_F_OVERLOAD,
- *      consider that the server is overloaded here.
- */
-static inline int is_overloaded(struct ip_vs_dest *dest)
+/* Helper function to get port number */
+static inline __be16
+ip_vs_sh_get_port(const struct sk_buff *skb, struct ip_vs_iphdr *iph)
 {
-	return dest->flags & IP_VS_DEST_F_OVERLOAD;
+	__be16 port;
+	struct tcphdr _tcph, *th;
+	struct udphdr _udph, *uh;
+	sctp_sctphdr_t _sctph, *sh;
+
+	switch (iph->protocol) {
+	case IPPROTO_TCP:
+		th = skb_header_pointer(skb, iph->len, sizeof(_tcph), &_tcph);
+		port = th->source;
+		break;
+	case IPPROTO_UDP:
+		uh = skb_header_pointer(skb, iph->len, sizeof(_udph), &_udph);
+		port = uh->source;
+		break;
+	case IPPROTO_SCTP:
+		sh = skb_header_pointer(skb, iph->len, sizeof(_sctph), &_sctph);
+		port = sh->source;
+		break;
+	default:
+		port = 0;
+	}
+
+	return port;
 }
 
 
@@ -232,15 +296,21 @@ ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
 {
 	struct ip_vs_dest *dest;
 	struct ip_vs_sh_state *s;
+	__be16 port = 0;
 
 	IP_VS_DBG(6, "ip_vs_sh_schedule(): Scheduling...\n");
 
+	if (svc->flags & IP_VS_SVC_F_SCHED_SH_PORT)
+		port = ip_vs_sh_get_port(skb, iph);
+
 	s = (struct ip_vs_sh_state *) svc->sched_data;
-	dest = ip_vs_sh_get(svc->af, s, &iph->saddr);
-	if (!dest
-	    || !(dest->flags & IP_VS_DEST_F_AVAILABLE)
-	    || atomic_read(&dest->weight) <= 0
-	    || is_overloaded(dest)) {
+
+	if (svc->flags & IP_VS_SVC_F_SCHED_SH_FALLBACK)
+		dest = ip_vs_sh_get_fallback(svc, s, &iph->saddr, port);
+	else
+		dest = ip_vs_sh_get(svc, s, &iph->saddr, port);
+
+	if (!dest) {
 		ip_vs_scheduler_err(svc, "no destination available");
 		return NULL;
 	}
-- 
cgit v0.10.2


From 4d0c875dcc4923476f364e83912d134da2df224c Mon Sep 17 00:00:00 2001
From: Julian Anastasov <ja@ssi.bg>
Date: Mon, 24 Jun 2013 22:44:41 +0300
Subject: ipvs: add sync_persist_mode flag

Add sync_persist_mode flag to reduce sync traffic
by syncing only persistent templates.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Tested-by: Aleksey Chudov <aleksey.chudov@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/Documentation/networking/ipvs-sysctl.txt b/Documentation/networking/ipvs-sysctl.txt
index 9573d0c..7a3c047 100644
--- a/Documentation/networking/ipvs-sysctl.txt
+++ b/Documentation/networking/ipvs-sysctl.txt
@@ -181,6 +181,19 @@ snat_reroute - BOOLEAN
 	always be the same as the original route so it is an optimisation
 	to disable snat_reroute and avoid the recalculation.
 
+sync_persist_mode - INTEGER
+	default 0
+
+	Controls the synchronisation of connections when using persistence
+
+	0: All types of connections are synchronised
+	1: Attempt to reduce the synchronisation traffic depending on
+	the connection type. For persistent services avoid synchronisation
+	for normal connections, do it only for persistence templates.
+	In such case, for TCP and SCTP it may need enabling sloppy_tcp and
+	sloppy_sctp flags on backup servers. For non-persistent services
+	such optimization is not applied, mode 0 is assumed.
+
 sync_version - INTEGER
 	default 1
 
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index e667df1..f0d70f0 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -975,6 +975,7 @@ struct netns_ipvs {
 	int			sysctl_snat_reroute;
 	int			sysctl_sync_ver;
 	int			sysctl_sync_ports;
+	int			sysctl_sync_persist_mode;
 	unsigned long		sysctl_sync_qlen_max;
 	int			sysctl_sync_sock_size;
 	int			sysctl_cache_bypass;
@@ -1076,6 +1077,11 @@ static inline int sysctl_sync_ports(struct netns_ipvs *ipvs)
 	return ACCESS_ONCE(ipvs->sysctl_sync_ports);
 }
 
+static inline int sysctl_sync_persist_mode(struct netns_ipvs *ipvs)
+{
+	return ipvs->sysctl_sync_persist_mode;
+}
+
 static inline unsigned long sysctl_sync_qlen_max(struct netns_ipvs *ipvs)
 {
 	return ipvs->sysctl_sync_qlen_max;
@@ -1139,6 +1145,11 @@ static inline int sysctl_sync_ports(struct netns_ipvs *ipvs)
 	return 1;
 }
 
+static inline int sysctl_sync_persist_mode(struct netns_ipvs *ipvs)
+{
+	return 0;
+}
+
 static inline unsigned long sysctl_sync_qlen_max(struct netns_ipvs *ipvs)
 {
 	return IPVS_SYNC_QLEN_MAX;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index da035fc..c8148e4 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1715,6 +1715,12 @@ static struct ctl_table vs_vars[] = {
 		.proc_handler	= &proc_do_sync_ports,
 	},
 	{
+		.procname	= "sync_persist_mode",
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
+	{
 		.procname	= "sync_qlen_max",
 		.maxlen		= sizeof(unsigned long),
 		.mode		= 0644,
@@ -3729,6 +3735,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct net *net)
 	tbl[idx++].data = &ipvs->sysctl_sync_ver;
 	ipvs->sysctl_sync_ports = 1;
 	tbl[idx++].data = &ipvs->sysctl_sync_ports;
+	tbl[idx++].data = &ipvs->sysctl_sync_persist_mode;
 	ipvs->sysctl_sync_qlen_max = nr_free_buffer_pages() / 32;
 	tbl[idx++].data = &ipvs->sysctl_sync_qlen_max;
 	ipvs->sysctl_sync_sock_size = 0;
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 2fc6639..f448471 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -425,6 +425,16 @@ ip_vs_sync_buff_create_v0(struct netns_ipvs *ipvs)
 	return sb;
 }
 
+/* Check if connection is controlled by persistence */
+static inline bool in_persistence(struct ip_vs_conn *cp)
+{
+	for (cp = cp->control; cp; cp = cp->control) {
+		if (cp->flags & IP_VS_CONN_F_TEMPLATE)
+			return true;
+	}
+	return false;
+}
+
 /* Check if conn should be synced.
  * pkts: conn packets, use sysctl_sync_threshold to avoid packet check
  * - (1) sync_refresh_period: reduce sync rate. Additionally, retry
@@ -447,6 +457,8 @@ static int ip_vs_sync_conn_needed(struct netns_ipvs *ipvs,
 	/* Check if we sync in current state */
 	if (unlikely(cp->flags & IP_VS_CONN_F_TEMPLATE))
 		force = 0;
+	else if (unlikely(sysctl_sync_persist_mode(ipvs) && in_persistence(cp)))
+		return 0;
 	else if (likely(cp->protocol == IPPROTO_TCP)) {
 		if (!((1 << cp->state) &
 		      ((1 << IP_VS_TCP_S_ESTABLISHED) |
-- 
cgit v0.10.2


From d0667186eb0eab78dcca9f75af6ed03873ca8d9f Mon Sep 17 00:00:00 2001
From: JunweiZhang <junwei.zhang@6wind.com>
Date: Wed, 26 Jun 2013 16:40:05 +0800
Subject: kernel: remove unnecessary head file

ip_vs.h is not necessary for sysctl_binary.c.

prepare for the next patch to avoid compile issue.

Signed-off-by: JunweiZhang <junwei.zhang@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index aea4a9e..b609213 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -3,7 +3,6 @@
 #include "../fs/xfs/xfs_sysctl.h"
 #include <linux/sunrpc/debug.h>
 #include <linux/string.h>
-#include <net/ip_vs.h>
 #include <linux/syscalls.h>
 #include <linux/namei.h>
 #include <linux/mount.h>
-- 
cgit v0.10.2


From 8b4d14d8eb36874daf159d33dcccd4746a6f3189 Mon Sep 17 00:00:00 2001
From: JunweiZhang <junwei.zhang@6wind.com>
Date: Wed, 26 Jun 2013 16:40:06 +0800
Subject: netns: exclude ipvs from struct net when IPVS disabled

no real problem is fixed, just save a few bytes in
net_namespace structure.

Signed-off-by: JunweiZhang <junwei.zhang@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 495bc57..84e37b1 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -115,7 +115,9 @@ struct net {
 #ifdef CONFIG_XFRM
 	struct netns_xfrm	xfrm;
 #endif
+#if IS_ENABLED(CONFIG_IP_VS)
 	struct netns_ipvs	*ipvs;
+#endif
 	struct sock		*diag_nlsk;
 	atomic_t		rt_genid;
 	atomic_t		fnhe_genid;
-- 
cgit v0.10.2


From 963b89e80d9fb7f22fc2688428e121b410b76504 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 26 Jun 2013 17:40:33 +0200
Subject: sit: fix 4in4 + IPsec scenario

Since commit 32b8a8e59c9c "sit: add IPv4 over IPv4 support",
tunnel->parms.iph.protocol is 0 when both 4in4 and 6in4 are setup, but
xfrm_lookup() is called only when proto is != 0, thus we need to pass the real
value.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index bd227e5..3b00d81 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -542,7 +542,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 	}
 
 	rt = ip_route_output_tunnel(dev_net(dev), &fl4,
-				    tunnel->parms.iph.protocol,
+				    protocol,
 				    dst, tnl_params->saddr,
 				    tunnel->parms.o_key,
 				    RT_TOS(tos),
-- 
cgit v0.10.2


From 77ecaace6c5487eae8ede633ad51478511a8e125 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 26 Jun 2013 03:41:49 +0200
Subject: ipv6: rearm router solicitaion timer when setting new tokenized
 address

When a new tokenized address gets installed we send out just one
router solicition. We should send out `rtr_solicits' in case one router
advertisment got lost.

So, rearm the timer as we do in addrconf_dad_complete.

Cc: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index afaf3cd..4e4cc1f 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4361,8 +4361,11 @@ static int inet6_set_iftoken(struct inet6_dev *idev, struct in6_addr *token)
 
 	write_lock_bh(&idev->lock);
 
-	if (update_rs)
+	if (update_rs) {
 		idev->if_flags |= IF_RS_SENT;
+		idev->rs_probes = 1;
+		addrconf_mod_rs_timer(idev, idev->cnf.rtr_solicit_interval);
+	}
 
 	/* Well, that's kinda nasty ... */
 	list_for_each_entry(ifp, &idev->addr_list, if_list) {
-- 
cgit v0.10.2


From 38ae92dc215e939897f17861d658f882d0eaab0f Mon Sep 17 00:00:00 2001
From: Chris Healy <cphealy@gmail.com>
Date: Tue, 25 Jun 2013 23:18:52 -0700
Subject: fec: Add support for reading RMON registers

Add ethtool operation to read RMON registers.

Tested against net-next on i.MX28.

v2: make conditional on #ifndef CONFIG_M5272

Signed-off-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index e3ed6c5..8362a03 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -60,6 +60,61 @@
 #define BM_MIIGSK_CFGR_RMII		0x01
 #define BM_MIIGSK_CFGR_FRCONT_10M	0x40
 
+#define RMON_T_DROP		0x200 /* Count of frames not cntd correctly */
+#define RMON_T_PACKETS		0x204 /* RMON TX packet count */
+#define RMON_T_BC_PKT		0x208 /* RMON TX broadcast pkts */
+#define RMON_T_MC_PKT		0x20C /* RMON TX multicast pkts */
+#define RMON_T_CRC_ALIGN	0x210 /* RMON TX pkts with CRC align err */
+#define RMON_T_UNDERSIZE	0x214 /* RMON TX pkts < 64 bytes, good CRC */
+#define RMON_T_OVERSIZE		0x218 /* RMON TX pkts > MAX_FL bytes good CRC */
+#define RMON_T_FRAG		0x21C /* RMON TX pkts < 64 bytes, bad CRC */
+#define RMON_T_JAB		0x220 /* RMON TX pkts > MAX_FL bytes, bad CRC */
+#define RMON_T_COL		0x224 /* RMON TX collision count */
+#define RMON_T_P64		0x228 /* RMON TX 64 byte pkts */
+#define RMON_T_P65TO127		0x22C /* RMON TX 65 to 127 byte pkts */
+#define RMON_T_P128TO255	0x230 /* RMON TX 128 to 255 byte pkts */
+#define RMON_T_P256TO511	0x234 /* RMON TX 256 to 511 byte pkts */
+#define RMON_T_P512TO1023	0x238 /* RMON TX 512 to 1023 byte pkts */
+#define RMON_T_P1024TO2047	0x23C /* RMON TX 1024 to 2047 byte pkts */
+#define RMON_T_P_GTE2048	0x240 /* RMON TX pkts > 2048 bytes */
+#define RMON_T_OCTETS		0x244 /* RMON TX octets */
+#define IEEE_T_DROP		0x248 /* Count of frames not counted crtly */
+#define IEEE_T_FRAME_OK		0x24C /* Frames tx'd OK */
+#define IEEE_T_1COL		0x250 /* Frames tx'd with single collision */
+#define IEEE_T_MCOL		0x254 /* Frames tx'd with multiple collision */
+#define IEEE_T_DEF		0x258 /* Frames tx'd after deferral delay */
+#define IEEE_T_LCOL		0x25C /* Frames tx'd with late collision */
+#define IEEE_T_EXCOL		0x260 /* Frames tx'd with excesv collisions */
+#define IEEE_T_MACERR		0x264 /* Frames tx'd with TX FIFO underrun */
+#define IEEE_T_CSERR		0x268 /* Frames tx'd with carrier sense err */
+#define IEEE_T_SQE		0x26C /* Frames tx'd with SQE err */
+#define IEEE_T_FDXFC		0x270 /* Flow control pause frames tx'd */
+#define IEEE_T_OCTETS_OK	0x274 /* Octet count for frames tx'd w/o err */
+#define RMON_R_PACKETS		0x284 /* RMON RX packet count */
+#define RMON_R_BC_PKT		0x288 /* RMON RX broadcast pkts */
+#define RMON_R_MC_PKT		0x28C /* RMON RX multicast pkts */
+#define RMON_R_CRC_ALIGN	0x290 /* RMON RX pkts with CRC alignment err */
+#define RMON_R_UNDERSIZE	0x294 /* RMON RX pkts < 64 bytes, good CRC */
+#define RMON_R_OVERSIZE		0x298 /* RMON RX pkts > MAX_FL bytes good CRC */
+#define RMON_R_FRAG		0x29C /* RMON RX pkts < 64 bytes, bad CRC */
+#define RMON_R_JAB		0x2A0 /* RMON RX pkts > MAX_FL bytes, bad CRC */
+#define RMON_R_RESVD_O		0x2A4 /* Reserved */
+#define RMON_R_P64		0x2A8 /* RMON RX 64 byte pkts */
+#define RMON_R_P65TO127		0x2AC /* RMON RX 65 to 127 byte pkts */
+#define RMON_R_P128TO255	0x2B0 /* RMON RX 128 to 255 byte pkts */
+#define RMON_R_P256TO511	0x2B4 /* RMON RX 256 to 511 byte pkts */
+#define RMON_R_P512TO1023	0x2B8 /* RMON RX 512 to 1023 byte pkts */
+#define RMON_R_P1024TO2047	0x2BC /* RMON RX 1024 to 2047 byte pkts */
+#define RMON_R_P_GTE2048	0x2C0 /* RMON RX pkts > 2048 bytes */
+#define RMON_R_OCTETS		0x2C4 /* RMON RX octets */
+#define IEEE_R_DROP		0x2C8 /* Count frames not counted correctly */
+#define IEEE_R_FRAME_OK		0x2CC /* Frames rx'd OK */
+#define IEEE_R_CRC		0x2D0 /* Frames rx'd with CRC err */
+#define IEEE_R_ALIGN		0x2D4 /* Frames rx'd with alignment err */
+#define IEEE_R_MACERR		0x2D8 /* Receive FIFO overflow count */
+#define IEEE_R_FDXFC		0x2DC /* Flow control pause frames rx'd */
+#define IEEE_R_OCTETS_OK	0x2E0 /* Octet cnt for frames rx'd w/o err */
+
 #else
 
 #define FEC_ECNTRL		0x000 /* Ethernet control reg */
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 46f2544..ed6180e 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -604,6 +604,14 @@ fec_restart(struct net_device *ndev, int duplex)
 	if (fep->bufdesc_ex)
 		ecntl |= (1 << 4);
 
+#ifndef CONFIG_M5272
+	/* Disable, clear, and enable the MIB */
+	writel(1 << 31, fep->hwp + FEC_MIB_CTRLSTAT);
+	for (i = RMON_T_DROP; i < IEEE_R_OCTETS_OK; i++)
+		writel(0, fep->hwp + i);
+	writel(0, fep->hwp + FEC_MIB_CTRLSTAT);
+#endif
+
 	/* And last, enable the transmit and receive processing */
 	writel(ecntl, fep->hwp + FEC_ECNTRL);
 	writel(0, fep->hwp + FEC_R_DES_ACTIVE);
@@ -1435,6 +1443,107 @@ static int fec_enet_set_pauseparam(struct net_device *ndev,
 	return 0;
 }
 
+#ifndef CONFIG_M5272
+static const struct fec_stat {
+	char name[ETH_GSTRING_LEN];
+	u16 offset;
+} fec_stats[] = {
+	/* RMON TX */
+	{ "tx_dropped", RMON_T_DROP },
+	{ "tx_packets", RMON_T_PACKETS },
+	{ "tx_broadcast", RMON_T_BC_PKT },
+	{ "tx_multicast", RMON_T_MC_PKT },
+	{ "tx_crc_errors", RMON_T_CRC_ALIGN },
+	{ "tx_undersize", RMON_T_UNDERSIZE },
+	{ "tx_oversize", RMON_T_OVERSIZE },
+	{ "tx_fragment", RMON_T_FRAG },
+	{ "tx_jabber", RMON_T_JAB },
+	{ "tx_collision", RMON_T_COL },
+	{ "tx_64byte", RMON_T_P64 },
+	{ "tx_65to127byte", RMON_T_P65TO127 },
+	{ "tx_128to255byte", RMON_T_P128TO255 },
+	{ "tx_256to511byte", RMON_T_P256TO511 },
+	{ "tx_512to1023byte", RMON_T_P512TO1023 },
+	{ "tx_1024to2047byte", RMON_T_P1024TO2047 },
+	{ "tx_GTE2048byte", RMON_T_P_GTE2048 },
+	{ "tx_octets", RMON_T_OCTETS },
+
+	/* IEEE TX */
+	{ "IEEE_tx_drop", IEEE_T_DROP },
+	{ "IEEE_tx_frame_ok", IEEE_T_FRAME_OK },
+	{ "IEEE_tx_1col", IEEE_T_1COL },
+	{ "IEEE_tx_mcol", IEEE_T_MCOL },
+	{ "IEEE_tx_def", IEEE_T_DEF },
+	{ "IEEE_tx_lcol", IEEE_T_LCOL },
+	{ "IEEE_tx_excol", IEEE_T_EXCOL },
+	{ "IEEE_tx_macerr", IEEE_T_MACERR },
+	{ "IEEE_tx_cserr", IEEE_T_CSERR },
+	{ "IEEE_tx_sqe", IEEE_T_SQE },
+	{ "IEEE_tx_fdxfc", IEEE_T_FDXFC },
+	{ "IEEE_tx_octets_ok", IEEE_T_OCTETS_OK },
+
+	/* RMON RX */
+	{ "rx_packets", RMON_R_PACKETS },
+	{ "rx_broadcast", RMON_R_BC_PKT },
+	{ "rx_multicast", RMON_R_MC_PKT },
+	{ "rx_crc_errors", RMON_R_CRC_ALIGN },
+	{ "rx_undersize", RMON_R_UNDERSIZE },
+	{ "rx_oversize", RMON_R_OVERSIZE },
+	{ "rx_fragment", RMON_R_FRAG },
+	{ "rx_jabber", RMON_R_JAB },
+	{ "rx_64byte", RMON_R_P64 },
+	{ "rx_65to127byte", RMON_R_P65TO127 },
+	{ "rx_128to255byte", RMON_R_P128TO255 },
+	{ "rx_256to511byte", RMON_R_P256TO511 },
+	{ "rx_512to1023byte", RMON_R_P512TO1023 },
+	{ "rx_1024to2047byte", RMON_R_P1024TO2047 },
+	{ "rx_GTE2048byte", RMON_R_P_GTE2048 },
+	{ "rx_octets", RMON_R_OCTETS },
+
+	/* IEEE RX */
+	{ "IEEE_rx_drop", IEEE_R_DROP },
+	{ "IEEE_rx_frame_ok", IEEE_R_FRAME_OK },
+	{ "IEEE_rx_crc", IEEE_R_CRC },
+	{ "IEEE_rx_align", IEEE_R_ALIGN },
+	{ "IEEE_rx_macerr", IEEE_R_MACERR },
+	{ "IEEE_rx_fdxfc", IEEE_R_FDXFC },
+	{ "IEEE_rx_octets_ok", IEEE_R_OCTETS_OK },
+};
+
+static void fec_enet_get_ethtool_stats(struct net_device *dev,
+	struct ethtool_stats *stats, u64 *data)
+{
+	struct fec_enet_private *fep = netdev_priv(dev);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(fec_stats); i++)
+		data[i] = readl(fep->hwp + fec_stats[i].offset);
+}
+
+static void fec_enet_get_strings(struct net_device *netdev,
+	u32 stringset, u8 *data)
+{
+	int i;
+	switch (stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < ARRAY_SIZE(fec_stats); i++)
+			memcpy(data + i * ETH_GSTRING_LEN,
+				fec_stats[i].name, ETH_GSTRING_LEN);
+		break;
+	}
+}
+
+static int fec_enet_get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return ARRAY_SIZE(fec_stats);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+#endif
+
 static int fec_enet_nway_reset(struct net_device *dev)
 {
 	struct fec_enet_private *fep = netdev_priv(dev);
@@ -1455,6 +1564,11 @@ static const struct ethtool_ops fec_enet_ethtool_ops = {
 	.get_link		= ethtool_op_get_link,
 	.get_ts_info		= fec_enet_get_ts_info,
 	.nway_reset		= fec_enet_nway_reset,
+#ifndef CONFIG_M5272
+	.get_ethtool_stats	= fec_enet_get_ethtool_stats,
+	.get_strings		= fec_enet_get_strings,
+	.get_sset_count		= fec_enet_get_sset_count,
+#endif
 };
 
 static int fec_enet_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
-- 
cgit v0.10.2


From 30caa4b763bf5973800633de55bae586ab443f78 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Mon, 10 Jun 2013 23:12:56 -0300
Subject: ARM: imx: prepare for removal of flexcan_platform_data

As there are no imx in-tree users of flexcan_platform_data, this patch removes
the possibility to register a flexcan device with platform data.

The functionality to swith on/off CAN transceivers is added to DT via
regulators in a later patch.

Compile time tested with imx_v4_v5_defconfig and imx_v6_v7_defconfig.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/arch/arm/mach-imx/devices-imx25.h b/arch/arm/mach-imx/devices-imx25.h
index 0d2922b..769563f 100644
--- a/arch/arm/mach-imx/devices-imx25.h
+++ b/arch/arm/mach-imx/devices-imx25.h
@@ -13,10 +13,10 @@ extern const struct imx_fec_data imx25_fec_data;
 	imx_add_fec(&imx25_fec_data, pdata)
 
 extern const struct imx_flexcan_data imx25_flexcan_data[];
-#define imx25_add_flexcan(id, pdata)	\
-	imx_add_flexcan(&imx25_flexcan_data[id], pdata)
-#define imx25_add_flexcan0(pdata)	imx25_add_flexcan(0, pdata)
-#define imx25_add_flexcan1(pdata)	imx25_add_flexcan(1, pdata)
+#define imx25_add_flexcan(id)	\
+	imx_add_flexcan(&imx25_flexcan_data[id])
+#define imx25_add_flexcan0()		imx25_add_flexcan(0)
+#define imx25_add_flexcan1()		imx25_add_flexcan(1)
 
 extern const struct imx_fsl_usb2_udc_data imx25_fsl_usb2_udc_data;
 #define imx25_add_fsl_usb2_udc(pdata)	\
diff --git a/arch/arm/mach-imx/devices-imx35.h b/arch/arm/mach-imx/devices-imx35.h
index e2675f1..780d824 100644
--- a/arch/arm/mach-imx/devices-imx35.h
+++ b/arch/arm/mach-imx/devices-imx35.h
@@ -17,10 +17,10 @@ extern const struct imx_fsl_usb2_udc_data imx35_fsl_usb2_udc_data;
 	imx_add_fsl_usb2_udc(&imx35_fsl_usb2_udc_data, pdata)
 
 extern const struct imx_flexcan_data imx35_flexcan_data[];
-#define imx35_add_flexcan(id, pdata)	\
-	imx_add_flexcan(&imx35_flexcan_data[id], pdata)
-#define imx35_add_flexcan0(pdata)	imx35_add_flexcan(0, pdata)
-#define imx35_add_flexcan1(pdata)	imx35_add_flexcan(1, pdata)
+#define imx35_add_flexcan(id)	\
+	imx_add_flexcan(&imx35_flexcan_data[id])
+#define imx35_add_flexcan0()		imx35_add_flexcan(0)
+#define imx35_add_flexcan1()		imx35_add_flexcan(1)
 
 extern const struct imx_imx2_wdt_data imx35_imx2_wdt_data;
 #define imx35_add_imx2_wdt()       \
diff --git a/arch/arm/mach-imx/devices/devices-common.h b/arch/arm/mach-imx/devices/devices-common.h
index 453e20b..c13b76b 100644
--- a/arch/arm/mach-imx/devices/devices-common.h
+++ b/arch/arm/mach-imx/devices/devices-common.h
@@ -50,7 +50,6 @@ struct platform_device *__init imx_add_fec(
 		const struct imx_fec_data *data,
 		const struct fec_platform_data *pdata);
 
-#include <linux/can/platform/flexcan.h>
 struct imx_flexcan_data {
 	int id;
 	resource_size_t iobase;
@@ -58,8 +57,7 @@ struct imx_flexcan_data {
 	resource_size_t irq;
 };
 struct platform_device *__init imx_add_flexcan(
-		const struct imx_flexcan_data *data,
-		const struct flexcan_platform_data *pdata);
+		const struct imx_flexcan_data *data);
 
 #include <linux/fsl_devices.h>
 struct imx_fsl_usb2_udc_data {
diff --git a/arch/arm/mach-imx/devices/platform-flexcan.c b/arch/arm/mach-imx/devices/platform-flexcan.c
index 1078bf0..55d61ea 100644
--- a/arch/arm/mach-imx/devices/platform-flexcan.c
+++ b/arch/arm/mach-imx/devices/platform-flexcan.c
@@ -38,8 +38,7 @@ const struct imx_flexcan_data imx35_flexcan_data[] __initconst = {
 #endif /* ifdef CONFIG_SOC_IMX35 */
 
 struct platform_device *__init imx_add_flexcan(
-		const struct imx_flexcan_data *data,
-		const struct flexcan_platform_data *pdata)
+		const struct imx_flexcan_data *data)
 {
 	struct resource res[] = {
 		{
@@ -54,5 +53,5 @@ struct platform_device *__init imx_add_flexcan(
 	};
 
 	return imx_add_platform_device("flexcan", data->id,
-			res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
+			res, ARRAY_SIZE(res), NULL, 0);
 }
diff --git a/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c b/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
index e2b70f4c..e77cc3a 100644
--- a/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
+++ b/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
@@ -279,7 +279,7 @@ void __init eukrea_mbimxsd25_baseboard_init(void)
 	imx25_add_imx_fb(&eukrea_mximxsd_fb_pdata);
 	imx25_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);
 
-	imx25_add_flexcan1(NULL);
+	imx25_add_flexcan1();
 	imx25_add_sdhci_esdhc_imx(0, &sd1_pdata);
 
 	gpio_request(GPIO_LED1, "LED1");
diff --git a/arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c b/arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c
index 5a2d5ef..14d6c82 100644
--- a/arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c
+++ b/arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c
@@ -287,7 +287,7 @@ void __init eukrea_mbimxsd35_baseboard_init(void)
 
 	imx35_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);
 
-	imx35_add_flexcan1(NULL);
+	imx35_add_flexcan1();
 	imx35_add_sdhci_esdhc_imx(0, &sd1_pdata);
 
 	gpio_request(GPIO_LED1, "LED1");
diff --git a/arch/arm/mach-imx/mach-mx25_3ds.c b/arch/arm/mach-imx/mach-mx25_3ds.c
index 8bcda68..13490c2 100644
--- a/arch/arm/mach-imx/mach-mx25_3ds.c
+++ b/arch/arm/mach-imx/mach-mx25_3ds.c
@@ -249,7 +249,7 @@ static void __init mx25pdk_init(void)
 	imx25_add_imx_i2c0(&mx25_3ds_i2c0_data);
 
 	gpio_request_one(MX25PDK_CAN_PWDN, GPIOF_OUT_INIT_LOW, "can-pwdn");
-	imx25_add_flexcan0(NULL);
+	imx25_add_flexcan0();
 }
 
 static void __init mx25pdk_timer_init(void)
diff --git a/arch/arm/mach-imx/mach-pcm043.c b/arch/arm/mach-imx/mach-pcm043.c
index 8ed533f..b726cb1 100644
--- a/arch/arm/mach-imx/mach-pcm043.c
+++ b/arch/arm/mach-imx/mach-pcm043.c
@@ -385,7 +385,7 @@ static void __init pcm043_init(void)
 	if (!otg_mode_host)
 		imx35_add_fsl_usb2_udc(&otg_device_pdata);
 
-	imx35_add_flexcan1(NULL);
+	imx35_add_flexcan1();
 	imx35_add_sdhci_esdhc_imx(0, &sd1_pdata);
 }
 
-- 
cgit v0.10.2


From b7c4114b07bbacfe0aee1d04ad1ade9e42309620 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 10 Jun 2013 23:12:57 -0300
Subject: can: flexcan: Use a regulator to control the CAN transceiver

Instead of using a GPIO to turn on/off the CAN transceiver, it is better to
use a regulator as some systems may use a PMIC to power the CAN transceiver.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
index 8ff324e..56d6cc3 100644
--- a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
+++ b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
@@ -16,6 +16,8 @@ Optional properties:
 
 - clock-frequency : The oscillator frequency driving the flexcan device
 
+- xceiver-supply: Regulator that powers the CAN transceiver
+
 Example:
 
 	can@1c000 {
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 3637bf3..1f0d38d 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -155,12 +155,14 @@
 			can0: can@80032000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&can0_pins_a>;
+				xceiver-supply = <&reg_can_3v3>;
 				status = "okay";
 			};
 
 			can1: can@80034000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&can1_pins_a>;
+				xceiver-supply = <&reg_can_3v3>;
 				status = "okay";
 			};
 		};
@@ -319,6 +321,16 @@
 			gpio = <&gpio3 30 0>;
 			enable-active-high;
 		};
+
+		reg_can_3v3: can-3v3 {
+			compatible = "regulator-fixed";
+			regulator-name = "can-3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio2 13 0>;
+			enable-active-high;
+		};
+
 	};
 
 	sound {
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 5b62b64..97b8a44 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -14,7 +14,6 @@
 #include <linux/clk/mxs.h>
 #include <linux/clkdev.h>
 #include <linux/clocksource.h>
-#include <linux/can/platform/flexcan.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
@@ -60,41 +59,6 @@ static inline void __mxs_togl(u32 mask, void __iomem *reg)
 	__raw_writel(mask, reg + MXS_TOG_ADDR);
 }
 
-/*
- * MX28EVK_FLEXCAN_SWITCH is shared between both flexcan controllers
- */
-#define MX28EVK_FLEXCAN_SWITCH	MXS_GPIO_NR(2, 13)
-
-static int flexcan0_en, flexcan1_en;
-
-static void mx28evk_flexcan_switch(void)
-{
-	if (flexcan0_en || flexcan1_en)
-		gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 1);
-	else
-		gpio_set_value(MX28EVK_FLEXCAN_SWITCH, 0);
-}
-
-static void mx28evk_flexcan0_switch(int enable)
-{
-	flexcan0_en = enable;
-	mx28evk_flexcan_switch();
-}
-
-static void mx28evk_flexcan1_switch(int enable)
-{
-	flexcan1_en = enable;
-	mx28evk_flexcan_switch();
-}
-
-static struct flexcan_platform_data flexcan_pdata[2];
-
-static struct of_dev_auxdata mxs_auxdata_lookup[] __initdata = {
-	OF_DEV_AUXDATA("fsl,imx28-flexcan", 0x80032000, NULL, &flexcan_pdata[0]),
-	OF_DEV_AUXDATA("fsl,imx28-flexcan", 0x80034000, NULL, &flexcan_pdata[1]),
-	{ /* sentinel */ }
-};
-
 #define OCOTP_WORD_OFFSET		0x20
 #define OCOTP_WORD_COUNT		0x20
 
@@ -254,15 +218,6 @@ static void __init imx28_evk_init(void)
 	mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
 }
 
-static void __init imx28_evk_post_init(void)
-{
-	if (!gpio_request_one(MX28EVK_FLEXCAN_SWITCH, GPIOF_DIR_OUT,
-			      "flexcan-switch")) {
-		flexcan_pdata[0].transceiver_switch = mx28evk_flexcan0_switch;
-		flexcan_pdata[1].transceiver_switch = mx28evk_flexcan1_switch;
-	}
-}
-
 static int apx4devkit_phy_fixup(struct phy_device *phy)
 {
 	phy->dev_flags |= MICREL_PHY_50MHZ_CLK;
@@ -374,13 +329,10 @@ static void __init mxs_machine_init(void)
 		cfa10049_init();
 
 	of_platform_populate(NULL, of_default_bus_match_table,
-			     mxs_auxdata_lookup, NULL);
+			     NULL, NULL);
 
 	if (of_machine_is_compatible("karo,tx28"))
 		tx28_post_init();
-
-	if (of_machine_is_compatible("fsl,imx28-evk"))
-		imx28_evk_post_init();
 }
 
 #define MX23_CLKCTRL_RESET_OFFSET	0x120
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index f873b9f..7b0be09 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -24,7 +24,6 @@
 #include <linux/can/dev.h>
 #include <linux/can/error.h>
 #include <linux/can/led.h>
-#include <linux/can/platform/flexcan.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/if_arp.h>
@@ -37,6 +36,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
 
 #define DRV_NAME			"flexcan"
 
@@ -211,6 +211,7 @@ struct flexcan_priv {
 	struct clk *clk_per;
 	struct flexcan_platform_data *pdata;
 	const struct flexcan_devtype_data *devtype_data;
+	struct regulator *reg_xceiver;
 };
 
 static struct flexcan_devtype_data fsl_p1010_devtype_data = {
@@ -258,15 +259,6 @@ static inline void flexcan_write(u32 val, void __iomem *addr)
 }
 #endif
 
-/*
- * Swtich transceiver on or off
- */
-static void flexcan_transceiver_switch(const struct flexcan_priv *priv, int on)
-{
-	if (priv->pdata && priv->pdata->transceiver_switch)
-		priv->pdata->transceiver_switch(on);
-}
-
 static inline int flexcan_has_and_handle_berr(const struct flexcan_priv *priv,
 					      u32 reg_esr)
 {
@@ -799,7 +791,11 @@ static int flexcan_chip_start(struct net_device *dev)
 	if (priv->devtype_data->features & FLEXCAN_HAS_V10_FEATURES)
 		flexcan_write(0x0, &regs->rxfgmask);
 
-	flexcan_transceiver_switch(priv, 1);
+	if (priv->reg_xceiver)	{
+		err = regulator_enable(priv->reg_xceiver);
+		if (err)
+			goto out;
+	}
 
 	/* synchronize with the can bus */
 	reg_mcr = flexcan_read(&regs->mcr);
@@ -842,7 +838,8 @@ static void flexcan_chip_stop(struct net_device *dev)
 	reg |= FLEXCAN_MCR_MDIS | FLEXCAN_MCR_HALT;
 	flexcan_write(reg, &regs->mcr);
 
-	flexcan_transceiver_switch(priv, 0);
+	if (priv->reg_xceiver)
+		regulator_disable(priv->reg_xceiver);
 	priv->can.state = CAN_STATE_STOPPED;
 
 	return;
@@ -1084,6 +1081,10 @@ static int flexcan_probe(struct platform_device *pdev)
 	priv->pdata = pdev->dev.platform_data;
 	priv->devtype_data = devtype_data;
 
+	priv->reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");
+	if (IS_ERR(priv->reg_xceiver))
+		priv->reg_xceiver = NULL;
+
 	netif_napi_add(dev, &priv->napi, flexcan_poll, FLEXCAN_NAPI_WEIGHT);
 
 	dev_set_drvdata(&pdev->dev, dev);
-- 
cgit v0.10.2


From baffd2e8d9a562021f046ed52195aaac91a51412 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 10 Jun 2013 23:12:58 -0300
Subject: ARM: imx: flexcan: Remove platform file

As there are no more users of the flexcan platform file, let's remove it.

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/include/linux/can/platform/flexcan.h b/include/linux/can/platform/flexcan.h
deleted file mode 100644
index 72b713a..0000000
--- a/include/linux/can/platform/flexcan.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright (C) 2010 Marc Kleine-Budde <kernel@pengutronix.de>
- *
- * This file is released under the GPLv2
- *
- */
-
-#ifndef __CAN_PLATFORM_FLEXCAN_H
-#define __CAN_PLATFORM_FLEXCAN_H
-
-/**
- * struct flexcan_platform_data - flex CAN controller platform data
- * @transceiver_enable:         - called to power on/off the transceiver
- *
- */
-struct flexcan_platform_data {
-	void (*transceiver_switch)(int enable);
-};
-
-#endif /* __CAN_PLATFORM_FLEXCAN_H */
-- 
cgit v0.10.2


From 1f3e4b0cc4deb9d740261273fbbf5ea95c8434d0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 12 Jun 2013 17:00:39 +0530
Subject: can: at91_can: Use of_match_ptr()

of_match_ptr() eliminates having an #ifdef returning NULL for the case
when OF is disabled.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index ce8421a..dbbe97a 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -1264,8 +1264,6 @@ static const struct of_device_id at91_can_dt_ids[] = {
 	}
 };
 MODULE_DEVICE_TABLE(of, at91_can_dt_ids);
-#else
-#define at91_can_dt_ids NULL
 #endif
 
 static const struct at91_devtype_data *at91_can_get_driver_data(struct platform_device *pdev)
@@ -1424,7 +1422,7 @@ static struct platform_driver at91_can_driver = {
 	.driver = {
 		.name = KBUILD_MODNAME,
 		.owner = THIS_MODULE,
-		.of_match_table = at91_can_dt_ids,
+		.of_match_table = of_match_ptr(at91_can_dt_ids),
 	},
 	.id_table = at91_can_id_table,
 };
-- 
cgit v0.10.2


From 51f877ab1ae13680dcb13de7d9b8f7dccb109e44 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 24 Jun 2013 23:03:22 +0200
Subject: rt2x00: rt2800: increase EEPROM_SIZE to 512 bytes

Ralink 3T chipsets are using a different EEPROM
layout than the others. The EEPROM on these devices
contain more data than the others which does not fit
into 272 byte which the rt2800 driver actually uses.

The Ralink reference driver defines EEPROM_SIZE to
512/1024 bytes for PCI/USB devices respectively.

Increase the EEPROM_SIZE constant to 512 bytes, in
order to make room for EEPROM data of 3T devices.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index fe43d01..d78c495 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -100,7 +100,7 @@
 #define CSR_REG_BASE			0x1000
 #define CSR_REG_SIZE			0x0800
 #define EEPROM_BASE			0x0000
-#define EEPROM_SIZE			0x0110
+#define EEPROM_SIZE			0x0200
 #define BBP_BASE			0x0000
 #define BBP_SIZE			0x00ff
 #define RF_BASE				0x0004
-- 
cgit v0.10.2


From 3e23d4e8cef83995558f1a7026ea2b74207445bf Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 24 Jun 2013 23:03:23 +0200
Subject: rt2x00: rt2800lib: turn on secondary PAs/LNAs for 3T/3R devices

The secondary PAs/LNAs are turned on only for 2T/2R
devices, however these are used for 3T/3R devices as
well. Always turn those on if the device uses more
than one tx/rx chains.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 4072242..b7119e3 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2678,16 +2678,16 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 
 	tx_pin = 0;
 
-	/* Turn on unused PA or LNA when not using 1T or 1R */
-	if (rt2x00dev->default_ant.tx_chain_num == 2) {
+	if (rt2x00dev->default_ant.tx_chain_num > 1) {
+		/* Turn on secondary PAs for 2T and for 3T devices*/
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A1_EN,
 				   rf->channel > 14);
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G1_EN,
 				   rf->channel <= 14);
 	}
 
-	/* Turn on unused PA or LNA when not using 1T or 1R */
-	if (rt2x00dev->default_ant.rx_chain_num == 2) {
+	if (rt2x00dev->default_ant.rx_chain_num > 1) {
+		/* Turn on secondary LNAs for 2R and for 3R devices */
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A1_EN, 1);
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G1_EN, 1);
 	}
-- 
cgit v0.10.2


From bb16d4881e1fd2b189f2cb7bee96c3e9b7cfe5f9 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 24 Jun 2013 23:03:24 +0200
Subject: rt2x00: rt2800lib: turn on tertiary PAs/LNAs for 3T/3R devices

The 3T/3R devices are using the tertiary PAs/LNAs
however those are never turned on. Fix the code to
turn on those on for such devices.

Also modify the code to use switch statements to
improve readability.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index b7119e3..25f7dbe 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2678,30 +2678,53 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 
 	tx_pin = 0;
 
-	if (rt2x00dev->default_ant.tx_chain_num > 1) {
-		/* Turn on secondary PAs for 2T and for 3T devices*/
+	switch (rt2x00dev->default_ant.tx_chain_num) {
+	case 3:
+		/* Turn on tertiary PAs */
+		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A2_EN,
+				   rf->channel > 14);
+		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G2_EN,
+				   rf->channel <= 14);
+		/* fall-through */
+	case 2:
+		/* Turn on secondary PAs */
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A1_EN,
 				   rf->channel > 14);
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G1_EN,
 				   rf->channel <= 14);
+		/* fall-through */
+	case 1:
+		/* Turn on primary PAs */
+		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A0_EN,
+				   rf->channel > 14);
+		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags))
+			rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN, 1);
+		else
+			rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN,
+					   rf->channel <= 14);
+		break;
 	}
 
-	if (rt2x00dev->default_ant.rx_chain_num > 1) {
-		/* Turn on secondary LNAs for 2R and for 3R devices */
+	switch (rt2x00dev->default_ant.rx_chain_num) {
+	case 3:
+		/* Turn on tertiary LNAs */
+		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A2_EN, 1);
+		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G2_EN, 1);
+		/* fall-through */
+	case 2:
+		/* Turn on secondary LNAs */
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A1_EN, 1);
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G1_EN, 1);
+		/* fall-through */
+	case 1:
+		/* Turn on primary LNAs */
+		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A0_EN, 1);
+		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G0_EN, 1);
+		break;
 	}
 
-	rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_A0_EN, 1);
-	rt2x00_set_field32(&tx_pin, TX_PIN_CFG_LNA_PE_G0_EN, 1);
 	rt2x00_set_field32(&tx_pin, TX_PIN_CFG_RFTR_EN, 1);
 	rt2x00_set_field32(&tx_pin, TX_PIN_CFG_TRSW_EN, 1);
-	if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags))
-		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN, 1);
-	else
-		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN,
-				   rf->channel <= 14);
-	rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A0_EN, rf->channel > 14);
 
 	rt2800_register_write(rt2x00dev, TX_PIN_CFG, tx_pin);
 
-- 
cgit v0.10.2


From 9a54c17636814bce1ee19585231a4a038000c8bd Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 25 Jun 2013 12:29:23 +0530
Subject: ath9k: Add mix tx gain table for AR9462 2.0

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index 3101c39..d402cb3 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -542,6 +542,9 @@ static void ar9003_tx_gain_table_mode4(struct ath_hw *ah)
 	else if (AR_SREV_9462_21(ah))
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 		       ar9462_2p1_modes_mix_ob_db_tx_gain);
+	else if (AR_SREV_9462_20(ah))
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+		       ar9462_modes_mix_ob_db_tx_gain_table_2p0);
 	else
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			ar9300Modes_mixed_ob_db_tx_gain_table_2p2);
diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index 1d6b705..092b9d4 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -879,6 +879,69 @@ static const u32 ar9462_2p0_radio_postamble[][5] = {
 	{0x0001650c, 0x48000000, 0x40000000, 0x40000000, 0x40000000},
 };
 
+static const u32 ar9462_modes_mix_ob_db_tx_gain_table_2p0[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x000098bc, 0x00000002, 0x00000002, 0x00000002, 0x00000002},
+	{0x0000a2dc, 0x01feee00, 0x01feee00, 0x03aaa352, 0x03aaa352},
+	{0x0000a2e0, 0x0000f000, 0x0000f000, 0x03ccc584, 0x03ccc584},
+	{0x0000a2e4, 0x01ff0000, 0x01ff0000, 0x03f0f800, 0x03f0f800},
+	{0x0000a2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+	{0x0000a410, 0x0000d0da, 0x0000d0da, 0x0000d0de, 0x0000d0de},
+	{0x0000a458, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
+	{0x0000a504, 0x06002223, 0x06002223, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0a022220, 0x0a022220, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x0f022223, 0x0f022223, 0x0b000200, 0x0b000200},
+	{0x0000a510, 0x14022620, 0x14022620, 0x0f000202, 0x0f000202},
+	{0x0000a514, 0x18022622, 0x18022622, 0x12000400, 0x12000400},
+	{0x0000a518, 0x1b022822, 0x1b022822, 0x16000402, 0x16000402},
+	{0x0000a51c, 0x20022842, 0x20022842, 0x19000404, 0x19000404},
+	{0x0000a520, 0x22022c41, 0x22022c41, 0x1c000603, 0x1c000603},
+	{0x0000a524, 0x28023042, 0x28023042, 0x21000a02, 0x21000a02},
+	{0x0000a528, 0x2c023044, 0x2c023044, 0x25000a04, 0x25000a04},
+	{0x0000a52c, 0x2f023644, 0x2f023644, 0x28000a20, 0x28000a20},
+	{0x0000a530, 0x34025643, 0x34025643, 0x2c000e20, 0x2c000e20},
+	{0x0000a534, 0x38025a44, 0x38025a44, 0x30000e22, 0x30000e22},
+	{0x0000a538, 0x3b025e45, 0x3b025e45, 0x34000e24, 0x34000e24},
+	{0x0000a53c, 0x41025e4a, 0x41025e4a, 0x38001640, 0x38001640},
+	{0x0000a540, 0x48025e6c, 0x48025e6c, 0x3c001660, 0x3c001660},
+	{0x0000a544, 0x4e025e8e, 0x4e025e8e, 0x3f001861, 0x3f001861},
+	{0x0000a548, 0x55025eb3, 0x55025eb3, 0x43001a81, 0x43001a81},
+	{0x0000a54c, 0x58025ef3, 0x58025ef3, 0x47001a83, 0x47001a83},
+	{0x0000a550, 0x5d025ef6, 0x5d025ef6, 0x4a001c84, 0x4a001c84},
+	{0x0000a554, 0x62025f56, 0x62025f56, 0x4e001ce3, 0x4e001ce3},
+	{0x0000a558, 0x66027f56, 0x66027f56, 0x52001ce5, 0x52001ce5},
+	{0x0000a55c, 0x6a029f56, 0x6a029f56, 0x56001ce9, 0x56001ce9},
+	{0x0000a560, 0x70049f56, 0x70049f56, 0x5a001ceb, 0x5a001ceb},
+	{0x0000a564, 0x751ffff6, 0x751ffff6, 0x5c001eec, 0x5c001eec},
+	{0x0000a568, 0x751ffff6, 0x751ffff6, 0x5e001ef0, 0x5e001ef0},
+	{0x0000a56c, 0x751ffff6, 0x751ffff6, 0x60001ef4, 0x60001ef4},
+	{0x0000a570, 0x751ffff6, 0x751ffff6, 0x62001ff6, 0x62001ff6},
+	{0x0000a574, 0x751ffff6, 0x751ffff6, 0x62001ff6, 0x62001ff6},
+	{0x0000a578, 0x751ffff6, 0x751ffff6, 0x62001ff6, 0x62001ff6},
+	{0x0000a57c, 0x751ffff6, 0x751ffff6, 0x62001ff6, 0x62001ff6},
+	{0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a610, 0x00804000, 0x00804000, 0x00000000, 0x00000000},
+	{0x0000a614, 0x00804201, 0x00804201, 0x01404000, 0x01404000},
+	{0x0000a618, 0x0280c802, 0x0280c802, 0x01404501, 0x01404501},
+	{0x0000a61c, 0x0280ca03, 0x0280ca03, 0x02008501, 0x02008501},
+	{0x0000a620, 0x04c15104, 0x04c15104, 0x0280ca03, 0x0280ca03},
+	{0x0000a624, 0x04c15305, 0x04c15305, 0x03010c04, 0x03010c04},
+	{0x0000a628, 0x04c15305, 0x04c15305, 0x04014c04, 0x04014c04},
+	{0x0000a62c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a630, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a634, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a638, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000a63c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
+	{0x0000b2dc, 0x01feee00, 0x01feee00, 0x03aaa352, 0x03aaa352},
+	{0x0000b2e0, 0x0000f000, 0x0000f000, 0x03ccc584, 0x03ccc584},
+	{0x0000b2e4, 0x01ff0000, 0x01ff0000, 0x03f0f800, 0x03f0f800},
+	{0x0000b2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+};
+
 static const u32 ar9462_modes_high_ob_db_tx_gain_table_2p0[][5] = {
 	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
 	{0x000098bc, 0x00000002, 0x00000002, 0x00000002, 0x00000002},
-- 
cgit v0.10.2


From 0847beb2865f5ef1c8626ec1a37def18f3d6c41a Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 25 Jun 2013 22:57:29 +0200
Subject: rt2x00: rt2800lib: fix default TX power check for RT55xx

The code writes the default_power2 value into the TX field
of the RFCSR50 register, however the condition in the if
statement uses default_power1. Due to this, wrong TX power
value might be written into the register.

Use the correct value in the condition to fix the issue.

Compile tested only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: stable@vger.kernel.org # 3.10
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 25f7dbe..1f80ea5 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2392,7 +2392,7 @@ static void rt2800_config_channel_rf55xx(struct rt2x00_dev *rt2x00dev,
 	rt2800_rfcsr_write(rt2x00dev, 49, rfcsr);
 
 	rt2800_rfcsr_read(rt2x00dev, 50, &rfcsr);
-	if (info->default_power1 > power_bound)
+	if (info->default_power2 > power_bound)
 		rt2x00_set_field8(&rfcsr, RFCSR50_TX, power_bound);
 	else
 		rt2x00_set_field8(&rfcsr, RFCSR50_TX, info->default_power2);
-- 
cgit v0.10.2


From 87b1423b71f7ce58186c89920b0cde12a74ee150 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 26 Jun 2013 08:50:50 +0200
Subject: ath10k: fix MSI-X setup failpath

Irqs were not freed up correctly upon msi-x setup
failure.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index c8e9056..33af467 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -1883,9 +1883,10 @@ static int ath10k_pci_start_intr_msix(struct ath10k *ar, int num)
 			ath10k_warn("request_irq(%d) failed %d\n",
 				    ar_pci->pdev->irq + i, ret);
 
-			for (; i >= MSI_ASSIGN_CE_INITIAL; i--)
-				free_irq(ar_pci->pdev->irq, ar);
+			for (i--; i >= MSI_ASSIGN_CE_INITIAL; i--)
+				free_irq(ar_pci->pdev->irq + i, ar);
 
+			free_irq(ar_pci->pdev->irq + MSI_ASSIGN_FW, ar);
 			pci_disable_msi(ar_pci->pdev);
 			return ret;
 		}
-- 
cgit v0.10.2


From 429ff56a4ad5d9568a319f9368cc06c9f4f571af Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 26 Jun 2013 08:54:54 +0200
Subject: ath10k: fix 5ghz channel definitions

Nonsense channel flags were being set.

Although it doesn't seem this was visible to the
user the patch makes sure that channel
availability won't be crippled in the future if
ath_common behaviour changes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 3446c98..725b067 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2721,30 +2721,30 @@ static const struct ieee80211_channel ath10k_2ghz_channels[] = {
 };
 
 static const struct ieee80211_channel ath10k_5ghz_channels[] = {
-	CHAN5G(36, 5180, 14),
-	CHAN5G(40, 5200, 15),
-	CHAN5G(44, 5220, 16),
-	CHAN5G(48, 5240, 17),
-	CHAN5G(52, 5260, 18),
-	CHAN5G(56, 5280, 19),
-	CHAN5G(60, 5300, 20),
-	CHAN5G(64, 5320, 21),
-	CHAN5G(100, 5500, 22),
-	CHAN5G(104, 5520, 23),
-	CHAN5G(108, 5540, 24),
-	CHAN5G(112, 5560, 25),
-	CHAN5G(116, 5580, 26),
-	CHAN5G(120, 5600, 27),
-	CHAN5G(124, 5620, 28),
-	CHAN5G(128, 5640, 29),
-	CHAN5G(132, 5660, 30),
-	CHAN5G(136, 5680, 31),
-	CHAN5G(140, 5700, 32),
-	CHAN5G(149, 5745, 33),
-	CHAN5G(153, 5765, 34),
-	CHAN5G(157, 5785, 35),
-	CHAN5G(161, 5805, 36),
-	CHAN5G(165, 5825, 37),
+	CHAN5G(36, 5180, 0),
+	CHAN5G(40, 5200, 0),
+	CHAN5G(44, 5220, 0),
+	CHAN5G(48, 5240, 0),
+	CHAN5G(52, 5260, 0),
+	CHAN5G(56, 5280, 0),
+	CHAN5G(60, 5300, 0),
+	CHAN5G(64, 5320, 0),
+	CHAN5G(100, 5500, 0),
+	CHAN5G(104, 5520, 0),
+	CHAN5G(108, 5540, 0),
+	CHAN5G(112, 5560, 0),
+	CHAN5G(116, 5580, 0),
+	CHAN5G(120, 5600, 0),
+	CHAN5G(124, 5620, 0),
+	CHAN5G(128, 5640, 0),
+	CHAN5G(132, 5660, 0),
+	CHAN5G(136, 5680, 0),
+	CHAN5G(140, 5700, 0),
+	CHAN5G(149, 5745, 0),
+	CHAN5G(153, 5765, 0),
+	CHAN5G(157, 5785, 0),
+	CHAN5G(161, 5805, 0),
+	CHAN5G(165, 5825, 0),
 };
 
 static struct ieee80211_rate ath10k_rates[] = {
-- 
cgit v0.10.2


From d847e3e2e4d9d0c2902122a474d7fe62e08d6309 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 26 Jun 2013 08:57:24 +0200
Subject: ath10k: leave MMIC generation to the HW

Apparently HW doesn't require us to generate MMIC
for TKIP suite.

Each frame was 8 bytes longer than it should be
and some APs would drop frames that exceed 1520
bytes of 802.11 payload. This could be observed
during throughput tests or fragmented IP traffic.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 725b067..95e306e 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -54,7 +54,6 @@ static int ath10k_send_key(struct ath10k_vif *arvif,
 		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
-		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 		arg.key_cipher = WMI_CIPHER_TKIP;
 		arg.key_txmic_len = 8;
 		arg.key_rxmic_len = 8;
-- 
cgit v0.10.2


From 8960400eeefa73e7fe32dc2b6b5ac529d43a9593 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Wed, 26 Jun 2013 09:55:54 +0200
Subject: b43: replace B43_BCMA_EXTRA with modparam allhwsupport
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This allows enabling support for extra hardware with just a module
param, without kernel/module recompilation.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 3f21e0b..51ff0b1 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -31,12 +31,6 @@ config B43_BCMA
 	depends on B43 && (BCMA = y || BCMA = B43)
 	default y
 
-config B43_BCMA_EXTRA
-	bool "Hardware support that overlaps with the brcmsmac driver"
-	depends on B43_BCMA
-	default n if BRCMSMAC
-	default y
-
 config B43_SSB
 	bool
 	depends on B43 && (SSB = y || SSB = B43)
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index a95b77a..0e933bb 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -113,13 +113,15 @@ static int b43_modparam_pio = 0;
 module_param_named(pio, b43_modparam_pio, int, 0644);
 MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO");
 
+static int modparam_allhwsupport = !IS_ENABLED(CONFIG_BRCMSMAC);
+module_param_named(allhwsupport, modparam_allhwsupport, int, 0444);
+MODULE_PARM_DESC(allhwsupport, "Enable support for all hardware (even it if overlaps with the brcmsmac driver)");
+
 #ifdef CONFIG_B43_BCMA
 static const struct bcma_device_id b43_bcma_tbl[] = {
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x11, BCMA_ANY_CLASS),
-#ifdef CONFIG_B43_BCMA_EXTRA
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x17, BCMA_ANY_CLASS),
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x18, BCMA_ANY_CLASS),
-#endif
 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1D, BCMA_ANY_CLASS),
 	BCMA_CORETABLE_END
 };
@@ -5396,6 +5398,12 @@ static int b43_bcma_probe(struct bcma_device *core)
 	struct b43_wl *wl;
 	int err;
 
+	if (!modparam_allhwsupport &&
+	    (core->id.rev == 0x17 || core->id.rev == 0x18)) {
+		pr_err("Support for cores revisions 0x17 and 0x18 disabled by module param allhwsupport=0. Try b43.allhwsupport=1\n");
+		return -ENOTSUPP;
+	}
+
 	dev = b43_bus_dev_bcma_init(core);
 	if (!dev)
 		return -ENODEV;
-- 
cgit v0.10.2


From 88f9b65d444794bb607f71644362ba0642585206 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Wed, 26 Jun 2013 10:02:11 +0200
Subject: bcma: add support for BCM43142
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h
index 79595a0..0215f9a 100644
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -22,6 +22,8 @@
 struct bcma_bus;
 
 /* main.c */
+bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
+		     int timeout);
 int bcma_bus_register(struct bcma_bus *bus);
 void bcma_bus_unregister(struct bcma_bus *bus);
 int __init bcma_bus_early_register(struct bcma_bus *bus,
diff --git a/drivers/bcma/driver_chipcommon.c b/drivers/bcma/driver_chipcommon.c
index 036c674..b068f98 100644
--- a/drivers/bcma/driver_chipcommon.c
+++ b/drivers/bcma/driver_chipcommon.c
@@ -140,8 +140,15 @@ void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
 	bcma_core_chipcommon_early_init(cc);
 
 	if (cc->core->id.rev >= 20) {
-		bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, 0);
-		bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, 0);
+		u32 pullup = 0, pulldown = 0;
+
+		if (cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM43142) {
+			pullup = 0x402e0;
+			pulldown = 0x20500;
+		}
+
+		bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, pullup);
+		bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, pulldown);
 	}
 
 	if (cc->capabilities & BCMA_CC_CAP_PMU)
diff --git a/drivers/bcma/driver_chipcommon_pmu.c b/drivers/bcma/driver_chipcommon_pmu.c
index edca73a..5081a8c 100644
--- a/drivers/bcma/driver_chipcommon_pmu.c
+++ b/drivers/bcma/driver_chipcommon_pmu.c
@@ -56,6 +56,109 @@ void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
 }
 EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset);
 
+static u32 bcma_pmu_xtalfreq(struct bcma_drv_cc *cc)
+{
+	u32 ilp_ctl, alp_hz;
+
+	if (!(bcma_cc_read32(cc, BCMA_CC_PMU_STAT) &
+	      BCMA_CC_PMU_STAT_EXT_LPO_AVAIL))
+		return 0;
+
+	bcma_cc_write32(cc, BCMA_CC_PMU_XTAL_FREQ,
+			BIT(BCMA_CC_PMU_XTAL_FREQ_MEASURE_SHIFT));
+	usleep_range(1000, 2000);
+
+	ilp_ctl = bcma_cc_read32(cc, BCMA_CC_PMU_XTAL_FREQ);
+	ilp_ctl &= BCMA_CC_PMU_XTAL_FREQ_ILPCTL_MASK;
+
+	bcma_cc_write32(cc, BCMA_CC_PMU_XTAL_FREQ, 0);
+
+	alp_hz = ilp_ctl * 32768 / 4;
+	return (alp_hz + 50000) / 100000 * 100;
+}
+
+static void bcma_pmu2_pll_init0(struct bcma_drv_cc *cc, u32 xtalfreq)
+{
+	struct bcma_bus *bus = cc->core->bus;
+	u32 freq_tgt_target = 0, freq_tgt_current;
+	u32 pll0, mask;
+
+	switch (bus->chipinfo.id) {
+	case BCMA_CHIP_ID_BCM43142:
+		/* pmu2_xtaltab0_adfll_485 */
+		switch (xtalfreq) {
+		case 12000:
+			freq_tgt_target = 0x50D52;
+			break;
+		case 20000:
+			freq_tgt_target = 0x307FE;
+			break;
+		case 26000:
+			freq_tgt_target = 0x254EA;
+			break;
+		case 37400:
+			freq_tgt_target = 0x19EF8;
+			break;
+		case 52000:
+			freq_tgt_target = 0x12A75;
+			break;
+		}
+		break;
+	}
+
+	if (!freq_tgt_target) {
+		bcma_err(bus, "Unknown TGT frequency for xtalfreq %d\n",
+			 xtalfreq);
+		return;
+	}
+
+	pll0 = bcma_chipco_pll_read(cc, BCMA_CC_PMU15_PLL_PLLCTL0);
+	freq_tgt_current = (pll0 & BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK) >>
+		BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT;
+
+	if (freq_tgt_current == freq_tgt_target) {
+		bcma_debug(bus, "Target TGT frequency already set\n");
+		return;
+	}
+
+	/* Turn off PLL */
+	switch (bus->chipinfo.id) {
+	case BCMA_CHIP_ID_BCM43142:
+		mask = (u32)~(BCMA_RES_4314_HT_AVAIL |
+			      BCMA_RES_4314_MACPHY_CLK_AVAIL);
+
+		bcma_cc_mask32(cc, BCMA_CC_PMU_MINRES_MSK, mask);
+		bcma_cc_mask32(cc, BCMA_CC_PMU_MAXRES_MSK, mask);
+		bcma_wait_value(cc->core, BCMA_CLKCTLST,
+				BCMA_CLKCTLST_HAVEHT, 0, 20000);
+		break;
+	}
+
+	pll0 &= ~BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK;
+	pll0 |= freq_tgt_target << BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT;
+	bcma_chipco_pll_write(cc, BCMA_CC_PMU15_PLL_PLLCTL0, pll0);
+
+	/* Flush */
+	if (cc->pmu.rev >= 2)
+		bcma_cc_set32(cc, BCMA_CC_PMU_CTL, BCMA_CC_PMU_CTL_PLL_UPD);
+
+	/* TODO: Do we need to update OTP? */
+}
+
+static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
+{
+	struct bcma_bus *bus = cc->core->bus;
+	u32 xtalfreq = bcma_pmu_xtalfreq(cc);
+
+	switch (bus->chipinfo.id) {
+	case BCMA_CHIP_ID_BCM43142:
+		if (xtalfreq == 0)
+			xtalfreq = 20000;
+		bcma_pmu2_pll_init0(cc, xtalfreq);
+		break;
+	}
+}
+
 static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
 {
 	struct bcma_bus *bus = cc->core->bus;
@@ -66,6 +169,25 @@ static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
 		min_msk = 0x200D;
 		max_msk = 0xFFFF;
 		break;
+	case BCMA_CHIP_ID_BCM43142:
+		min_msk = BCMA_RES_4314_LPLDO_PU |
+			  BCMA_RES_4314_PMU_SLEEP_DIS |
+			  BCMA_RES_4314_PMU_BG_PU |
+			  BCMA_RES_4314_CBUCK_LPOM_PU |
+			  BCMA_RES_4314_CBUCK_PFM_PU |
+			  BCMA_RES_4314_CLDO_PU |
+			  BCMA_RES_4314_LPLDO2_LVM |
+			  BCMA_RES_4314_WL_PMU_PU |
+			  BCMA_RES_4314_LDO3P3_PU |
+			  BCMA_RES_4314_OTP_PU |
+			  BCMA_RES_4314_WL_PWRSW_PU |
+			  BCMA_RES_4314_LQ_AVAIL |
+			  BCMA_RES_4314_LOGIC_RET |
+			  BCMA_RES_4314_MEM_SLEEP |
+			  BCMA_RES_4314_MACPHY_RET |
+			  BCMA_RES_4314_WL_CORE_READY;
+		max_msk = 0x3FFFFFFF;
+		break;
 	default:
 		bcma_debug(bus, "PMU resource config unknown or not needed for device 0x%04X\n",
 			   bus->chipinfo.id);
@@ -165,6 +287,7 @@ void bcma_pmu_init(struct bcma_drv_cc *cc)
 		bcma_cc_set32(cc, BCMA_CC_PMU_CTL,
 			     BCMA_CC_PMU_CTL_NOILPONW);
 
+	bcma_pmu_pll_init(cc);
 	bcma_pmu_resources_init(cc);
 	bcma_pmu_workarounds(cc);
 }
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index fbf2759..a355e63 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -275,6 +275,7 @@ static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4357) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4358) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4359) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4365) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
 	{ 0, },
 };
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index f72f52b..0067422 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -93,6 +93,25 @@ struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
 	return NULL;
 }
 
+bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
+		     int timeout)
+{
+	unsigned long deadline = jiffies + timeout;
+	u32 val;
+
+	do {
+		val = bcma_read32(core, reg);
+		if ((val & mask) == value)
+			return true;
+		cpu_relax();
+		udelay(10);
+	} while (!time_after_eq(jiffies, deadline));
+
+	bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg);
+
+	return false;
+}
+
 static void bcma_release_core_dev(struct device *dev)
 {
 	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c
index de15b4f..72bf454 100644
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -503,6 +503,7 @@ static bool bcma_sprom_onchip_available(struct bcma_bus *bus)
 	case BCMA_CHIP_ID_BCM4331:
 		present = chip_status & BCMA_CC_CHIPST_4331_OTP_PRESENT;
 		break;
+	case BCMA_CHIP_ID_BCM43142:
 	case BCMA_CHIP_ID_BCM43224:
 	case BCMA_CHIP_ID_BCM43225:
 		/* for these chips OTP is always available */
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 2e34db8..622fc50 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -144,6 +144,7 @@ struct bcma_host_ops {
 
 /* Chip IDs of PCIe devices */
 #define BCMA_CHIP_ID_BCM4313	0x4313
+#define BCMA_CHIP_ID_BCM43142	43142
 #define BCMA_CHIP_ID_BCM43224	43224
 #define  BCMA_PKG_ID_BCM43224_FAB_CSM	0x8
 #define  BCMA_PKG_ID_BCM43224_FAB_SMIC	0xa
diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h
index b8b09ea..c49e1a1 100644
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -330,6 +330,8 @@
 #define BCMA_CC_PMU_CAP			0x0604 /* PMU capabilities */
 #define  BCMA_CC_PMU_CAP_REVISION	0x000000FF /* Revision mask */
 #define BCMA_CC_PMU_STAT		0x0608 /* PMU status */
+#define  BCMA_CC_PMU_STAT_EXT_LPO_AVAIL	0x00000100
+#define  BCMA_CC_PMU_STAT_WDRESET	0x00000080
 #define  BCMA_CC_PMU_STAT_INTPEND	0x00000040 /* Interrupt pending */
 #define  BCMA_CC_PMU_STAT_SBCLKST	0x00000030 /* Backplane clock status? */
 #define  BCMA_CC_PMU_STAT_HAVEALP	0x00000008 /* ALP available */
@@ -355,6 +357,11 @@
 #define BCMA_CC_REGCTL_DATA		0x065C
 #define BCMA_CC_PLLCTL_ADDR		0x0660
 #define BCMA_CC_PLLCTL_DATA		0x0664
+#define BCMA_CC_PMU_STRAPOPT		0x0668 /* (corerev >= 28) */
+#define BCMA_CC_PMU_XTAL_FREQ		0x066C /* (pmurev >= 10) */
+#define  BCMA_CC_PMU_XTAL_FREQ_ILPCTL_MASK	0x00001FFF
+#define  BCMA_CC_PMU_XTAL_FREQ_MEASURE_MASK	0x80000000
+#define  BCMA_CC_PMU_XTAL_FREQ_MEASURE_SHIFT	31
 #define BCMA_CC_SPROM			0x0800 /* SPROM beginning */
 /* NAND flash MLC controller registers (corerev >= 38) */
 #define BCMA_CC_NAND_REVISION		0x0C00
@@ -435,6 +442,23 @@
 #define  BCMA_CC_PMU6_4706_PROC_NDIV_MODE_MASK	0x00000007
 #define  BCMA_CC_PMU6_4706_PROC_NDIV_MODE_SHIFT	0
 
+/* PMU rev 15 */
+#define BCMA_CC_PMU15_PLL_PLLCTL0	0
+#define  BCMA_CC_PMU15_PLL_PC0_CLKSEL_MASK	0x00000003
+#define  BCMA_CC_PMU15_PLL_PC0_CLKSEL_SHIFT	0
+#define  BCMA_CC_PMU15_PLL_PC0_FREQTGT_MASK	0x003FFFFC
+#define  BCMA_CC_PMU15_PLL_PC0_FREQTGT_SHIFT	2
+#define  BCMA_CC_PMU15_PLL_PC0_PRESCALE_MASK	0x00C00000
+#define  BCMA_CC_PMU15_PLL_PC0_PRESCALE_SHIFT	22
+#define  BCMA_CC_PMU15_PLL_PC0_KPCTRL_MASK	0x07000000
+#define  BCMA_CC_PMU15_PLL_PC0_KPCTRL_SHIFT	24
+#define  BCMA_CC_PMU15_PLL_PC0_FCNTCTRL_MASK	0x38000000
+#define  BCMA_CC_PMU15_PLL_PC0_FCNTCTRL_SHIFT	27
+#define  BCMA_CC_PMU15_PLL_PC0_FDCMODE_MASK	0x40000000
+#define  BCMA_CC_PMU15_PLL_PC0_FDCMODE_SHIFT	30
+#define  BCMA_CC_PMU15_PLL_PC0_CTRLBIAS_MASK	0x80000000
+#define  BCMA_CC_PMU15_PLL_PC0_CTRLBIAS_SHIFT	31
+
 /* ALP clock on pre-PMU chips */
 #define BCMA_CC_PMU_ALP_CLOCK		20000000
 /* HT clock for systems with PMU-enabled chipcommon */
@@ -507,6 +531,37 @@
 #define BCMA_CHIPCTL_5357_I2S_PINS_ENABLE	BIT(18)
 #define BCMA_CHIPCTL_5357_I2CSPI_PINS_ENABLE	BIT(19)
 
+#define BCMA_RES_4314_LPLDO_PU			BIT(0)
+#define BCMA_RES_4314_PMU_SLEEP_DIS		BIT(1)
+#define BCMA_RES_4314_PMU_BG_PU			BIT(2)
+#define BCMA_RES_4314_CBUCK_LPOM_PU		BIT(3)
+#define BCMA_RES_4314_CBUCK_PFM_PU		BIT(4)
+#define BCMA_RES_4314_CLDO_PU			BIT(5)
+#define BCMA_RES_4314_LPLDO2_LVM		BIT(6)
+#define BCMA_RES_4314_WL_PMU_PU			BIT(7)
+#define BCMA_RES_4314_LNLDO_PU			BIT(8)
+#define BCMA_RES_4314_LDO3P3_PU			BIT(9)
+#define BCMA_RES_4314_OTP_PU			BIT(10)
+#define BCMA_RES_4314_XTAL_PU			BIT(11)
+#define BCMA_RES_4314_WL_PWRSW_PU		BIT(12)
+#define BCMA_RES_4314_LQ_AVAIL			BIT(13)
+#define BCMA_RES_4314_LOGIC_RET			BIT(14)
+#define BCMA_RES_4314_MEM_SLEEP			BIT(15)
+#define BCMA_RES_4314_MACPHY_RET		BIT(16)
+#define BCMA_RES_4314_WL_CORE_READY		BIT(17)
+#define BCMA_RES_4314_ILP_REQ			BIT(18)
+#define BCMA_RES_4314_ALP_AVAIL			BIT(19)
+#define BCMA_RES_4314_MISC_PWRSW_PU		BIT(20)
+#define BCMA_RES_4314_SYNTH_PWRSW_PU		BIT(21)
+#define BCMA_RES_4314_RX_PWRSW_PU		BIT(22)
+#define BCMA_RES_4314_RADIO_PU			BIT(23)
+#define BCMA_RES_4314_VCO_LDO_PU		BIT(24)
+#define BCMA_RES_4314_AFE_LDO_PU		BIT(25)
+#define BCMA_RES_4314_RX_LDO_PU			BIT(26)
+#define BCMA_RES_4314_TX_LDO_PU			BIT(27)
+#define BCMA_RES_4314_HT_AVAIL			BIT(28)
+#define BCMA_RES_4314_MACPHY_CLK_AVAIL		BIT(29)
+
 /* Data for the PMU, if available.
  * Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU)
  */
-- 
cgit v0.10.2


From 2086374658ae580fc0575c9ab7c1ec033458dbf6 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Wed, 26 Jun 2013 14:20:14 +0200
Subject: brcmfmac: simplify transmit path

When getting a transmit packet from the networking layer simply
enqueue the packet unconditional and have it handled by the dequeue
worker. The transfer of the packet to the bus-specific driver part
is now done from one context.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 13e75c4..41f902d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1707,37 +1707,6 @@ static int brcmf_fws_borrow_credit(struct brcmf_fws_info *fws)
 	return -ENAVAIL;
 }
 
-static int brcmf_fws_consume_credit(struct brcmf_fws_info *fws, int fifo,
-				    struct sk_buff *skb)
-{
-	struct brcmf_fws_mac_descriptor *entry = brcmf_skbcb(skb)->mac;
-	int *credit = &fws->fifo_credit[fifo];
-
-	if (fifo != BRCMF_FWS_FIFO_AC_BE)
-		fws->borrow_defer_timestamp = jiffies +
-					      BRCMF_FWS_BORROW_DEFER_PERIOD;
-
-	if (!(*credit)) {
-		/* Try to borrow a credit from other queue */
-		if (fifo != BRCMF_FWS_FIFO_AC_BE ||
-		    (brcmf_fws_borrow_credit(fws) != 0)) {
-			brcmf_dbg(DATA, "ac=%d, credits depleted\n", fifo);
-			return -ENAVAIL;
-		}
-	} else {
-		(*credit)--;
-		if (!(*credit))
-			fws->fifo_credit_map &= ~(1 << fifo);
-	}
-
-	brcmf_fws_macdesc_use_req_credit(entry, skb);
-
-	brcmf_dbg(DATA, "ac=%d, credits=%02d:%02d:%02d:%02d\n", fifo,
-		  fws->fifo_credit[0], fws->fifo_credit[1],
-		  fws->fifo_credit[2], fws->fifo_credit[3]);
-	return 0;
-}
-
 static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 				struct sk_buff *skb)
 {
@@ -1819,25 +1788,12 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 		  eh->h_dest, multicast, fifo);
 
 	brcmf_fws_lock(drvr, flags);
-	/* multicast credit support is conditional, setting
-	 * flag to false to assure credit is consumed below.
-	 */
-	if (fws->bcmc_credit_check)
-		multicast = false;
-
-	if (skcb->mac->suppressed ||
-	    fws->bus_flow_blocked ||
-	    brcmf_fws_macdesc_closed(fws, skcb->mac, fifo) ||
-	    brcmu_pktq_mlen(&skcb->mac->psq, 3 << (fifo * 2)) ||
-	    (!multicast &&
-	     brcmf_fws_consume_credit(fws, fifo, skb) < 0)) {
-		/* enqueue the packet in delayQ */
-		drvr->fws->fifo_delay_map |= 1 << fifo;
-		brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
-	} else {
-		brcmf_fws_commit_skb(fws, fifo, skb);
-	}
+	brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
+	if (fifo != BRCMF_FWS_FIFO_AC_BE && fifo < BRCMF_FWS_FIFO_BCMC)
+		fws->borrow_defer_timestamp = jiffies +
+					      BRCMF_FWS_BORROW_DEFER_PERIOD;
 	brcmf_fws_unlock(drvr, flags);
+	brcmf_fws_schedule_deq(fws);
 	return 0;
 }
 
-- 
cgit v0.10.2


From 2a5d7b026db094d9be7f399bef70afc435f842f7 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Wed, 26 Jun 2013 14:20:15 +0200
Subject: brcmfmac: remove (ab)use of NL80211_NUM_ACS

Used NL80211_NUM_ACS to indicate the BCMC fifo used in the driver
which has the same value now, but it is a bad idea relying on that.

Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 41f902d..e4fd13a 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1851,7 +1851,7 @@ static void brcmf_fws_dequeue_worker(struct work_struct *worker)
 	fws = container_of(worker, struct brcmf_fws_info, fws_dequeue_work);
 
 	brcmf_fws_lock(fws->drvr, flags);
-	for (fifo = NL80211_NUM_ACS; fifo >= 0 && !fws->bus_flow_blocked;
+	for (fifo = BRCMF_FWS_FIFO_BCMC; fifo >= 0 && !fws->bus_flow_blocked;
 	     fifo--) {
 		while ((fws->fifo_credit[fifo]) || ((!fws->bcmc_credit_check) &&
 		       (fifo == BRCMF_FWS_FIFO_BCMC))) {
-- 
cgit v0.10.2


From b058d4d258c13c725d5eb0fc5407d87212916966 Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Wed, 26 Jun 2013 14:20:16 +0200
Subject: brcmfmac: remove SDIO_REQ_ASYNC flag

Remove SDIO_REQ_ASYNC from brcmfmac since it is not being used.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 3f8e69c..c9c5ad2 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -453,15 +453,11 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 }
 
 static int brcmf_sdcard_recv_prepare(struct brcmf_sdio_dev *sdiodev, uint fn,
-				     uint flags, uint width, u32 *addr)
+				     uint width, u32 *addr)
 {
 	uint bar0 = *addr & ~SBSDIO_SB_OFT_ADDR_MASK;
 	int err = 0;
 
-	/* Async not implemented yet */
-	if (flags & SDIO_REQ_ASYNC)
-		return -ENOTSUPP;
-
 	if (bar0 != sdiodev->sbwad) {
 		err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0);
 		if (err)
@@ -512,7 +508,7 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		  fn, addr, pkt->len);
 
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
-	err = brcmf_sdcard_recv_prepare(sdiodev, fn, flags, width, &addr);
+	err = brcmf_sdcard_recv_prepare(sdiodev, fn, width, &addr);
 	if (err)
 		goto done;
 
@@ -536,7 +532,7 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		  fn, addr, pktq->qlen);
 
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
-	err = brcmf_sdcard_recv_prepare(sdiodev, fn, flags, width, &addr);
+	err = brcmf_sdcard_recv_prepare(sdiodev, fn, width, &addr);
 	if (err)
 		goto done;
 
@@ -581,10 +577,6 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pkt->len);
 
-	/* Async not implemented yet */
-	if (flags & SDIO_REQ_ASYNC)
-		return -ENOTSUPP;
-
 	if (bar0 != sdiodev->sbwad) {
 		err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0);
 		if (err)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 793df66..69c03fe 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -229,8 +229,6 @@ brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 #define SDIO_REQ_4BYTE	0x1
 /* Fixed address (FIFO) (vs. incrementing address) */
 #define SDIO_REQ_FIXED	0x2
-/* Async request (vs. sync request) */
-#define SDIO_REQ_ASYNC	0x4
 
 /* Read/write to memory block (F1, no FIFO) via CMD53 (sync only).
  *   rw:       read or write (0/1)
-- 
cgit v0.10.2


From 356bae6fb77b9ed74989bab4d919afd598f921a8 Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Wed, 26 Jun 2013 14:20:17 +0200
Subject: brcmfmac: use unified dongle address preparation function

Introduce a unified dongle backplane address preparation function
brcmf_sdio_addrprep to replace duplicate address prep code.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index c9c5ad2..70cd0e9 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -162,7 +162,7 @@ int brcmf_sdio_intr_unregister(struct brcmf_sdio_dev *sdiodev)
 	return 0;
 }
 
-int
+static int
 brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address)
 {
 	int err = 0, i;
@@ -193,12 +193,33 @@ brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address)
 	return err;
 }
 
+static int
+brcmf_sdio_addrprep(struct brcmf_sdio_dev *sdiodev, uint width, u32 *addr)
+{
+	uint bar0 = *addr & ~SBSDIO_SB_OFT_ADDR_MASK;
+	int err = 0;
+
+	if (bar0 != sdiodev->sbwad) {
+		err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0);
+		if (err)
+			return err;
+
+		sdiodev->sbwad = bar0;
+	}
+
+	*addr &= SBSDIO_SB_OFT_ADDR_MASK;
+
+	if (width == 4)
+		*addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
+
+	return 0;
+}
+
 int
 brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
 			void *data, bool write)
 {
 	u8 func_num, reg_size;
-	u32 bar;
 	s32 retry = 0;
 	int ret;
 
@@ -218,18 +239,7 @@ brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
 		func_num = SDIO_FUNC_1;
 		reg_size = 4;
 
-		/* Set the window for SB core register */
-		bar = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
-		if (bar != sdiodev->sbwad) {
-			ret = brcmf_sdcard_set_sbaddr_window(sdiodev, bar);
-			if (ret != 0) {
-				memset(data, 0xFF, reg_size);
-				return ret;
-			}
-			sdiodev->sbwad = bar;
-		}
-		addr &= SBSDIO_SB_OFT_ADDR_MASK;
-		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
+		brcmf_sdio_addrprep(sdiodev, reg_size, &addr);
 	}
 
 	do {
@@ -452,28 +462,6 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 	return ret;
 }
 
-static int brcmf_sdcard_recv_prepare(struct brcmf_sdio_dev *sdiodev, uint fn,
-				     uint width, u32 *addr)
-{
-	uint bar0 = *addr & ~SBSDIO_SB_OFT_ADDR_MASK;
-	int err = 0;
-
-	if (bar0 != sdiodev->sbwad) {
-		err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0);
-		if (err)
-			return err;
-
-		sdiodev->sbwad = bar0;
-	}
-
-	*addr &= SBSDIO_SB_OFT_ADDR_MASK;
-
-	if (width == 4)
-		*addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
-
-	return 0;
-}
-
 int
 brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, u8 *buf, uint nbytes)
@@ -508,7 +496,7 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		  fn, addr, pkt->len);
 
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
-	err = brcmf_sdcard_recv_prepare(sdiodev, fn, width, &addr);
+	err = brcmf_sdio_addrprep(sdiodev, width, &addr);
 	if (err)
 		goto done;
 
@@ -532,7 +520,7 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		  fn, addr, pktq->qlen);
 
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
-	err = brcmf_sdcard_recv_prepare(sdiodev, fn, width, &addr);
+	err = brcmf_sdio_addrprep(sdiodev, width, &addr);
 	if (err)
 		goto done;
 
@@ -570,33 +558,20 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, struct sk_buff *pkt)
 {
 	uint width;
-	uint bar0 = addr & ~SBSDIO_SB_OFT_ADDR_MASK;
 	int err = 0;
 	struct sk_buff_head pkt_list;
 
 	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pkt->len);
 
-	if (bar0 != sdiodev->sbwad) {
-		err = brcmf_sdcard_set_sbaddr_window(sdiodev, bar0);
-		if (err)
-			goto done;
-
-		sdiodev->sbwad = bar0;
-	}
-
-	addr &= SBSDIO_SB_OFT_ADDR_MASK;
-
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
-	if (width == 4)
-		addr |= SBSDIO_SB_ACCESS_2_4B_FLAG;
+	brcmf_sdio_addrprep(sdiodev, width, &addr);
 
 	skb_queue_head_init(&pkt_list);
 	skb_queue_tail(&pkt_list, pkt);
 	err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, &pkt_list);
 	skb_dequeue_tail(&pkt_list);
 
-done:
 	return err;
 }
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 69c03fe..09786a5 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -249,9 +249,6 @@ extern int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn);
 extern int brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev);
 extern int brcmf_sdio_remove(struct brcmf_sdio_dev *sdiodev);
 
-extern int brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev,
-					  u32 address);
-
 /* attach, return handler on success, NULL if failed.
  *  The handler shall be provided by all subsequent calls. No local cache
  *  cfghdl points to the starting address of pci device mapped memory
-- 
cgit v0.10.2


From 3b81a6809480f3fc7d9d06562704c8df18ecec00 Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Wed, 26 Jun 2013 14:20:18 +0200
Subject: brcmfmac: add broken scatter-gather DMA support

DMA engine of some old SDIO host controllers require block size alignment for
data length of each scatterlist item. This patch introduces an intermediate
buffer list to support this kind of platform. It decreases the throughput
because of an extra memcpy in critical data path. So don't turn this on unless
it's necessary.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 70cd0e9..e3f3c48 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -331,10 +331,11 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 			     bool write, u32 addr, struct sk_buff_head *pktlist)
 {
 	unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset;
-	unsigned int max_blks, max_req_sz;
+	unsigned int max_blks, max_req_sz, orig_offset, dst_offset;
 	unsigned short max_seg_sz, seg_sz;
-	unsigned char *pkt_data;
-	struct sk_buff *pkt_next = NULL;
+	unsigned char *pkt_data, *orig_data, *dst_data;
+	struct sk_buff *pkt_next = NULL, *local_pkt_next;
+	struct sk_buff_head local_list, *target_list;
 	struct mmc_request mmc_req;
 	struct mmc_command mmc_cmd;
 	struct mmc_data mmc_dat;
@@ -371,6 +372,32 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 					   req_sz);
 	}
 
+	target_list = pktlist;
+	/* for host with broken sg support, prepare a page aligned list */
+	__skb_queue_head_init(&local_list);
+	if (sdiodev->pdata && sdiodev->pdata->broken_sg_support && !write) {
+		req_sz = 0;
+		skb_queue_walk(pktlist, pkt_next)
+			req_sz += pkt_next->len;
+		req_sz = ALIGN(req_sz, sdiodev->func[fn]->cur_blksize);
+		while (req_sz > PAGE_SIZE) {
+			pkt_next = brcmu_pkt_buf_get_skb(PAGE_SIZE);
+			if (pkt_next == NULL) {
+				ret = -ENOMEM;
+				goto exit;
+			}
+			__skb_queue_tail(&local_list, pkt_next);
+			req_sz -= PAGE_SIZE;
+		}
+		pkt_next = brcmu_pkt_buf_get_skb(req_sz);
+		if (pkt_next == NULL) {
+			ret = -ENOMEM;
+			goto exit;
+		}
+		__skb_queue_tail(&local_list, pkt_next);
+		target_list = &local_list;
+	}
+
 	host = sdiodev->func[fn]->card->host;
 	func_blk_sz = sdiodev->func[fn]->cur_blksize;
 	/* Blocks per command is limited by host count, host transfer
@@ -380,13 +407,15 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 	max_req_sz = min_t(unsigned int, host->max_req_size,
 			   max_blks * func_blk_sz);
 	max_seg_sz = min_t(unsigned short, host->max_segs, SG_MAX_SINGLE_ALLOC);
-	max_seg_sz = min_t(unsigned short, max_seg_sz, pktlist->qlen);
-	seg_sz = pktlist->qlen;
+	max_seg_sz = min_t(unsigned short, max_seg_sz, target_list->qlen);
+	seg_sz = target_list->qlen;
 	pkt_offset = 0;
-	pkt_next = pktlist->next;
+	pkt_next = target_list->next;
 
-	if (sg_alloc_table(&st, max_seg_sz, GFP_KERNEL))
-		return -ENOMEM;
+	if (sg_alloc_table(&st, max_seg_sz, GFP_KERNEL)) {
+		ret = -ENOMEM;
+		goto exit;
+	}
 
 	while (seg_sz) {
 		req_sz = 0;
@@ -396,7 +425,7 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 		memset(&mmc_dat, 0, sizeof(struct mmc_data));
 		sgl = st.sgl;
 		/* prep sg table */
-		while (pkt_next != (struct sk_buff *)pktlist) {
+		while (pkt_next != (struct sk_buff *)target_list) {
 			pkt_data = pkt_next->data + pkt_offset;
 			sg_data_sz = pkt_next->len - pkt_offset;
 			if (sg_data_sz > host->max_seg_size)
@@ -423,8 +452,8 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 		if (req_sz % func_blk_sz != 0) {
 			brcmf_err("sg request length %u is not %u aligned\n",
 				  req_sz, func_blk_sz);
-			sg_free_table(&st);
-			return -ENOTBLK;
+			ret = -ENOTBLK;
+			goto exit;
 		}
 		mmc_dat.sg = st.sgl;
 		mmc_dat.sg_len = sg_cnt;
@@ -457,7 +486,34 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 		}
 	}
 
+	if (sdiodev->pdata && sdiodev->pdata->broken_sg_support && !write) {
+		local_pkt_next = local_list.next;
+		orig_offset = 0;
+		skb_queue_walk(pktlist, pkt_next) {
+			dst_offset = 0;
+			do {
+				req_sz = local_pkt_next->len - orig_offset;
+				req_sz = min_t(uint, pkt_next->len - dst_offset,
+					       req_sz);
+				orig_data = local_pkt_next->data + orig_offset;
+				dst_data = pkt_next->data + dst_offset;
+				memcpy(dst_data, orig_data, req_sz);
+				orig_offset += req_sz;
+				dst_offset += req_sz;
+				if (orig_offset == local_pkt_next->len) {
+					orig_offset = 0;
+					local_pkt_next = local_pkt_next->next;
+				}
+				if (dst_offset == pkt_next->len)
+					break;
+			} while (!skb_queue_empty(&local_list));
+		}
+	}
+
+exit:
 	sg_free_table(&st);
+	while ((pkt_next = __skb_dequeue(&local_list)) != NULL)
+		brcmu_pkt_buf_free_skb(pkt_next);
 
 	return ret;
 }
diff --git a/include/linux/platform_data/brcmfmac-sdio.h b/include/linux/platform_data/brcmfmac-sdio.h
index 1ade657..b717499 100644
--- a/include/linux/platform_data/brcmfmac-sdio.h
+++ b/include/linux/platform_data/brcmfmac-sdio.h
@@ -90,6 +90,10 @@ void __init brcmfmac_init_pdata(void)
  * oob_irq_nr, oob_irq_flags: the OOB interrupt information. The values are
  * used for registering the irq using request_irq function.
  *
+ * broken_sg_support: flag for broken sg list support of SDIO host controller.
+ * Set this to true if the SDIO host controller has higher align requirement
+ * than 32 bytes for each scatterlist item.
+ *
  * power_on: This function is called by the brcmfmac when the module gets
  * loaded. This can be particularly useful for low power devices. The platform
  * spcific routine may for example decide to power up the complete device.
@@ -116,6 +120,7 @@ struct brcmfmac_sdio_platform_data {
 	bool oob_irq_supported;
 	unsigned int oob_irq_nr;
 	unsigned long oob_irq_flags;
+	bool broken_sg_support;
 	void (*power_on)(void);
 	void (*power_off)(void);
 	void (*reset)(void);
-- 
cgit v0.10.2


From 456d0685c7522c661bf5af7930317ffcb710a858 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Wed, 26 Jun 2013 14:35:10 +0200
Subject: brcmfmac: tag packet in the netdev transmit callback

Transmit packets needs to be tagged in order to receive a tx status
feedback from the firmware. Determine the tag in the netdev transmit
callback instead of determining the tag just before transfer to the
device. This reduces the number of exception flows and hence makes
the driver code simpler.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index e4fd13a..44b3192 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1575,21 +1575,14 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 	return 0;
 }
 
-static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
+static void brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 				   struct sk_buff *p)
 {
 	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(p);
 	struct brcmf_fws_mac_descriptor *entry = skcb->mac;
-	int rc = 0;
-	bool first_time;
-	int hslot = BRCMF_FWS_HANGER_MAXITEMS;
-	u8 free_ctr;
 	u8 flags;
 
-	first_time = skcb->state != BRCMF_FWS_SKBSTATE_SUPPRESSED;
-
 	brcmf_skb_if_flags_set_field(p, TRANSMIT, 1);
-	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
 	brcmf_skb_htod_tag_set_field(p, GENERATION, entry->generation);
 	flags = BRCMF_FWS_HTOD_FLAG_PKTFROMHOST;
 	if (brcmf_skb_if_flags_get_field(p, REQUESTED)) {
@@ -1600,80 +1593,36 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 		flags |= BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED;
 	}
 	brcmf_skb_htod_tag_set_field(p, FLAGS, flags);
-	if (first_time) {
-		/* obtaining free slot may fail, but that will be caught
-		 * by the hanger push. This assures the packet has a BDC
-		 * header upon return.
-		 */
-		hslot = brcmf_fws_hanger_get_free_slot(&fws->hanger);
-		free_ctr = entry->seq[fifo];
-		brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
-		brcmf_skb_htod_tag_set_field(p, FREERUN, free_ctr);
-		rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
-		if (rc)
-			brcmf_err("hanger push failed: rc=%d\n", rc);
-	}
-
-	if (rc == 0)
-		brcmf_fws_hdrpush(fws, p);
-
-	return rc;
+	brcmf_fws_hdrpush(fws, p);
 }
 
-static void
-brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
-		       struct sk_buff *skb, int fifo)
+static void brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
+				   struct sk_buff *skb, int fifo)
 {
-	/*
-	put the packet back to the head of queue
-
-	- suppressed packet goes back to suppress sub-queue
-	- pull out the header, if new or delayed packet
-
-	Note: hslot is used only when header removal is done.
-	*/
 	struct brcmf_fws_mac_descriptor *entry;
-	enum brcmf_fws_skb_state state;
 	struct sk_buff *pktout;
+	int qidx, hslot;
 	int rc = 0;
-	int hslot;
 
-	state = brcmf_skbcb(skb)->state;
 	entry = brcmf_skbcb(skb)->mac;
-	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
-
-	if (entry != NULL) {
-		if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED) {
-			/* wl-header is saved for suppressed packets */
-			pktout = brcmu_pktq_penq_head(&entry->psq, 2 * fifo + 1,
-						      skb);
-			if (pktout == NULL) {
-				brcmf_err("suppress queue full\n");
-				rc = -ENOSPC;
-			}
-		} else {
-			/* delay-q packets are going to delay-q */
-			pktout = brcmu_pktq_penq_head(&entry->psq,
-						      2 * fifo, skb);
-			if (pktout == NULL) {
-				brcmf_err("delay queue full\n");
-				rc = -ENOSPC;
-			}
-
-			/* free the hanger slot */
-			brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &pktout,
-						true);
-
-			/* decrement sequence count */
-			entry->seq[fifo]--;
+	if (entry->occupied) {
+		qidx = 2 * fifo;
+		if (brcmf_skbcb(skb)->state == BRCMF_FWS_SKBSTATE_SUPPRESSED)
+			qidx++;
+
+		pktout = brcmu_pktq_penq_head(&entry->psq, qidx, skb);
+		if (pktout == NULL) {
+			brcmf_err("%s queue %d full\n", entry->name, qidx);
+			rc = -ENOSPC;
 		}
 	} else {
-		brcmf_err("no mac entry linked\n");
+		brcmf_err("%s entry removed\n", entry->name);
 		rc = -ENOENT;
 	}
 
 	if (rc) {
 		fws->stats.rollback_failed++;
+		hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
 		brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_HOST_TOSSED,
 				      hslot, 0);
 	} else {
@@ -1720,15 +1669,10 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 	if (IS_ERR(entry))
 		return PTR_ERR(entry);
 
-	rc = brcmf_fws_precommit_skb(fws, fifo, skb);
-	if (rc < 0) {
-		fws->stats.generic_error++;
-		goto rollback;
-	}
-
-	brcmf_dbg(DATA, "%s flags %X htod %X\n", entry->name, skcb->if_flags,
-		  skcb->htod);
+	brcmf_fws_precommit_skb(fws, fifo, skb);
 	rc = brcmf_bus_txdata(bus, skb);
+	brcmf_dbg(DATA, "%s flags %X htod %X bus_tx %d\n", entry->name,
+		  skcb->if_flags, skcb->htod, rc);
 	if (rc < 0) {
 		brcmf_proto_hdrpull(fws->drvr, false, &ifidx, skb);
 		goto rollback;
@@ -1737,7 +1681,6 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 	entry->transit_count++;
 	if (entry->suppressed)
 		entry->suppr_transit_count++;
-	entry->seq[fifo]++;
 	fws->stats.pkt2bus++;
 	fws->stats.send_pkts[fifo]++;
 	if (brcmf_skb_if_flags_get_field(skb, REQUESTED))
@@ -1750,6 +1693,24 @@ rollback:
 	return rc;
 }
 
+static int brcmf_fws_assign_htod(struct brcmf_fws_info *fws, struct sk_buff *p,
+				  int fifo)
+{
+	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(p);
+	int rc, hslot;
+
+	hslot = brcmf_fws_hanger_get_free_slot(&fws->hanger);
+	brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
+	brcmf_skb_htod_tag_set_field(p, FREERUN, skcb->mac->seq[fifo]);
+	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
+	rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
+	if (!rc)
+		skcb->mac->seq[fifo]++;
+	else
+		fws->stats.generic_error++;
+	return rc;
+}
+
 int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 {
 	struct brcmf_pub *drvr = ifp->drvr;
@@ -1778,22 +1739,27 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 
 	/* set control buffer information */
 	skcb->if_flags = 0;
-	skcb->mac = brcmf_fws_macdesc_find(fws, ifp, eh->h_dest);
 	skcb->state = BRCMF_FWS_SKBSTATE_NEW;
 	brcmf_skb_if_flags_set_field(skb, INDEX, ifp->ifidx);
 	if (!multicast)
 		fifo = brcmf_fws_prio2fifo[skb->priority];
 
-	brcmf_dbg(DATA, "%s mac %pM multi %d fifo %d\n", skcb->mac->name,
-		  eh->h_dest, multicast, fifo);
-
 	brcmf_fws_lock(drvr, flags);
-	brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
 	if (fifo != BRCMF_FWS_FIFO_AC_BE && fifo < BRCMF_FWS_FIFO_BCMC)
 		fws->borrow_defer_timestamp = jiffies +
 					      BRCMF_FWS_BORROW_DEFER_PERIOD;
+
+	skcb->mac = brcmf_fws_macdesc_find(fws, ifp, eh->h_dest);
+	brcmf_dbg(DATA, "%s mac %pM multi %d fifo %d\n", skcb->mac->name,
+		  eh->h_dest, multicast, fifo);
+	if (!brcmf_fws_assign_htod(fws, skb, fifo)) {
+		brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
+		brcmf_fws_schedule_deq(fws);
+	} else {
+		brcmf_err("drop skb: no hanger slot\n");
+		brcmu_pkt_buf_free_skb(skb);
+	}
 	brcmf_fws_unlock(drvr, flags);
-	brcmf_fws_schedule_deq(fws);
 	return 0;
 }
 
-- 
cgit v0.10.2


From 80898a117895235587b7dde63e3240e4f4d440c1 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Wed, 26 Jun 2013 14:20:20 +0200
Subject: brcmfmac: cleanup debug messages in brcmf_fws_hdrpush()

Trivial cleanup of debug messages.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 44b3192..e92a3ce 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -796,9 +796,8 @@ static int brcmf_fws_hdrpush(struct brcmf_fws_info *fws, struct sk_buff *skb)
 	u8 fillers;
 	__le32 pkttag = cpu_to_le32(brcmf_skbcb(skb)->htod);
 
-	brcmf_dbg(TRACE, "enter: ea=%pM, ifidx=%u (%u), pkttag=0x%08X, hslot=%d\n",
-		  entry->ea, entry->interface_id,
-		  brcmf_skb_if_flags_get_field(skb, INDEX),
+	brcmf_dbg(TRACE, "enter: %s, idx=%d pkttag=0x%08X, hslot=%d\n",
+		  entry->name, brcmf_skb_if_flags_get_field(skb, INDEX),
 		  le32_to_cpu(pkttag), (le32_to_cpu(pkttag) >> 8) & 0xffff);
 	if (entry->send_tim_signal)
 		data_offset += 2 + BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
@@ -822,8 +821,8 @@ static int brcmf_fws_hdrpush(struct brcmf_fws_info *fws, struct sk_buff *skb)
 		wlh[1] = BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN;
 		wlh[2] = entry->mac_handle;
 		wlh[3] = entry->traffic_pending_bmp;
-		brcmf_dbg(TRACE, "adding TIM info: %02X:%02X:%02X:%02X\n",
-			  wlh[0], wlh[1], wlh[2], wlh[3]);
+		brcmf_dbg(TRACE, "adding TIM info: handle %d bmp 0x%X\n",
+			  entry->mac_handle, entry->traffic_pending_bmp);
 		wlh += BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2;
 		entry->traffic_lastreported_bmp = entry->traffic_pending_bmp;
 	}
-- 
cgit v0.10.2


From c6a681ab2c73c1296b4214307216dffeb52558df Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Wed, 26 Jun 2013 14:20:21 +0200
Subject: brcmfmac: reduce firmware-signalling locking scope in rx path

In the receive path a spinlock is taken upon parsing the TLV signal
header. This moves to locking to the TLV handling functions where
it protects the data structures.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index e92a3ce..f0d9f7f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -905,10 +905,26 @@ static int brcmf_fws_rssi_indicate(struct brcmf_fws_info *fws, s8 rssi)
 	return 0;
 }
 
+/* using macro so sparse checking does not complain
+ * about locking imbalance.
+ */
+#define brcmf_fws_lock(drvr, flags)				\
+do {								\
+	flags = 0;						\
+	spin_lock_irqsave(&((drvr)->fws_spinlock), (flags));	\
+} while (0)
+
+/* using macro so sparse checking does not complain
+ * about locking imbalance.
+ */
+#define brcmf_fws_unlock(drvr, flags) \
+	spin_unlock_irqrestore(&((drvr)->fws_spinlock), (flags))
+
 static
 int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
 {
 	struct brcmf_fws_mac_descriptor *entry, *existing;
+	ulong flags;
 	u8 mac_handle;
 	u8 ifidx;
 	u8 *addr;
@@ -922,8 +938,10 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
 		if (entry->occupied) {
 			brcmf_dbg(TRACE, "deleting %s mac %pM\n",
 				  entry->name, addr);
+			brcmf_fws_lock(fws->drvr, flags);
 			brcmf_fws_macdesc_cleanup(fws, entry, -1);
 			brcmf_fws_macdesc_deinit(entry);
+			brcmf_fws_unlock(fws->drvr, flags);
 		} else
 			fws->stats.mac_update_failed++;
 		return 0;
@@ -932,11 +950,13 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
 	existing = brcmf_fws_macdesc_lookup(fws, addr);
 	if (IS_ERR(existing)) {
 		if (!entry->occupied) {
+			brcmf_fws_lock(fws->drvr, flags);
 			entry->mac_handle = mac_handle;
 			brcmf_fws_macdesc_init(entry, addr, ifidx);
 			brcmf_fws_macdesc_set_name(fws, entry);
 			brcmu_pktq_init(&entry->psq, BRCMF_FWS_PSQ_PREC_COUNT,
 					BRCMF_FWS_PSQ_LEN);
+			brcmf_fws_unlock(fws->drvr, flags);
 			brcmf_dbg(TRACE, "add %s mac %pM\n", entry->name, addr);
 		} else {
 			fws->stats.mac_update_failed++;
@@ -944,11 +964,13 @@ int brcmf_fws_macdesc_indicate(struct brcmf_fws_info *fws, u8 type, u8 *data)
 	} else {
 		if (entry != existing) {
 			brcmf_dbg(TRACE, "copy mac %s\n", existing->name);
+			brcmf_fws_lock(fws->drvr, flags);
 			memcpy(entry, existing,
 			       offsetof(struct brcmf_fws_mac_descriptor, psq));
 			entry->mac_handle = mac_handle;
 			brcmf_fws_macdesc_deinit(existing);
 			brcmf_fws_macdesc_set_name(fws, entry);
+			brcmf_fws_unlock(fws->drvr, flags);
 			brcmf_dbg(TRACE, "relocate %s mac %pM\n", entry->name,
 				  addr);
 		} else {
@@ -964,7 +986,9 @@ static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws,
 					    u8 type, u8 *data)
 {
 	struct brcmf_fws_mac_descriptor *entry;
+	ulong flags;
 	u8 mac_handle;
+	int ret;
 
 	mac_handle = data[0];
 	entry = &fws->desc.nodes[mac_handle & 0x1F];
@@ -972,26 +996,30 @@ static int brcmf_fws_macdesc_state_indicate(struct brcmf_fws_info *fws,
 		fws->stats.mac_ps_update_failed++;
 		return -ESRCH;
 	}
+	brcmf_fws_lock(fws->drvr, flags);
 	/* a state update should wipe old credits */
 	entry->requested_credit = 0;
 	entry->requested_packet = 0;
 	if (type == BRCMF_FWS_TYPE_MAC_OPEN) {
 		entry->state = BRCMF_FWS_STATE_OPEN;
-		return BRCMF_FWS_RET_OK_SCHEDULE;
+		ret = BRCMF_FWS_RET_OK_SCHEDULE;
 	} else {
 		entry->state = BRCMF_FWS_STATE_CLOSE;
 		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_BK, false);
 		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_BE, false);
 		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_VI, false);
 		brcmf_fws_tim_update(fws, entry, BRCMF_FWS_FIFO_AC_VO, true);
+		ret = BRCMF_FWS_RET_OK_NOSCHEDULE;
 	}
-	return BRCMF_FWS_RET_OK_NOSCHEDULE;
+	brcmf_fws_unlock(fws->drvr, flags);
+	return ret;
 }
 
 static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws,
 					      u8 type, u8 *data)
 {
 	struct brcmf_fws_mac_descriptor *entry;
+	ulong flags;
 	u8 ifidx;
 	int ret;
 
@@ -1010,17 +1038,24 @@ static int brcmf_fws_interface_state_indicate(struct brcmf_fws_info *fws,
 
 	brcmf_dbg(TRACE, "%s (%d): %s\n", brcmf_fws_get_tlv_name(type), type,
 		  entry->name);
+	brcmf_fws_lock(fws->drvr, flags);
 	switch (type) {
 	case BRCMF_FWS_TYPE_INTERFACE_OPEN:
 		entry->state = BRCMF_FWS_STATE_OPEN;
-		return BRCMF_FWS_RET_OK_SCHEDULE;
+		ret = BRCMF_FWS_RET_OK_SCHEDULE;
+		break;
 	case BRCMF_FWS_TYPE_INTERFACE_CLOSE:
 		entry->state = BRCMF_FWS_STATE_CLOSE;
-		return BRCMF_FWS_RET_OK_NOSCHEDULE;
+		ret = BRCMF_FWS_RET_OK_NOSCHEDULE;
+		break;
 	default:
 		ret = -EINVAL;
-		break;
+		brcmf_fws_unlock(fws->drvr, flags);
+		goto fail;
 	}
+	brcmf_fws_unlock(fws->drvr, flags);
+	return ret;
+
 fail:
 	fws->stats.if_update_failed++;
 	return ret;
@@ -1030,6 +1065,7 @@ static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type,
 				      u8 *data)
 {
 	struct brcmf_fws_mac_descriptor *entry;
+	ulong flags;
 
 	entry = &fws->desc.nodes[data[1] & 0x1F];
 	if (!entry->occupied) {
@@ -1043,12 +1079,14 @@ static int brcmf_fws_request_indicate(struct brcmf_fws_info *fws, u8 type,
 	brcmf_dbg(TRACE, "%s (%d): %s cnt %d bmp %d\n",
 		  brcmf_fws_get_tlv_name(type), type, entry->name,
 		  data[0], data[2]);
+	brcmf_fws_lock(fws->drvr, flags);
 	if (type == BRCMF_FWS_TYPE_MAC_REQUEST_CREDIT)
 		entry->requested_credit = data[0];
 	else
 		entry->requested_packet = data[0];
 
 	entry->ac_bitmap = data[2];
+	brcmf_fws_unlock(fws->drvr, flags);
 	return BRCMF_FWS_RET_OK_SCHEDULE;
 }
 
@@ -1345,6 +1383,7 @@ brcmf_fws_txs_process(struct brcmf_fws_info *fws, u8 flags, u32 hslot,
 static int brcmf_fws_fifocreditback_indicate(struct brcmf_fws_info *fws,
 					     u8 *data)
 {
+	ulong flags;
 	int i;
 
 	if (fws->fcmode != BRCMF_FWS_FCMODE_EXPLICIT_CREDIT) {
@@ -1353,16 +1392,19 @@ static int brcmf_fws_fifocreditback_indicate(struct brcmf_fws_info *fws,
 	}
 
 	brcmf_dbg(DATA, "enter: data %pM\n", data);
+	brcmf_fws_lock(fws->drvr, flags);
 	for (i = 0; i < BRCMF_FWS_FIFO_COUNT; i++)
 		brcmf_fws_return_credits(fws, i, data[i]);
 
 	brcmf_dbg(DATA, "map: credit %x delay %x\n", fws->fifo_credit_map,
 		  fws->fifo_delay_map);
+	brcmf_fws_unlock(fws->drvr, flags);
 	return BRCMF_FWS_RET_OK_SCHEDULE;
 }
 
 static int brcmf_fws_txstatus_indicate(struct brcmf_fws_info *fws, u8 *data)
 {
+	ulong lflags;
 	__le32 status_le;
 	u32 status;
 	u32 hslot;
@@ -1376,7 +1418,10 @@ static int brcmf_fws_txstatus_indicate(struct brcmf_fws_info *fws, u8 *data)
 	hslot = brcmf_txstatus_get_field(status, HSLOT);
 	genbit = brcmf_txstatus_get_field(status, GENERATION);
 
-	return brcmf_fws_txs_process(fws, flags, hslot, genbit);
+	brcmf_fws_lock(fws->drvr, lflags);
+	brcmf_fws_txs_process(fws, flags, hslot, genbit);
+	brcmf_fws_unlock(fws->drvr, lflags);
+	return BRCMF_FWS_RET_OK_NOSCHEDULE;
 }
 
 static int brcmf_fws_dbg_seqnum_check(struct brcmf_fws_info *fws, u8 *data)
@@ -1389,21 +1434,6 @@ static int brcmf_fws_dbg_seqnum_check(struct brcmf_fws_info *fws, u8 *data)
 	return 0;
 }
 
-/* using macro so sparse checking does not complain
- * about locking imbalance.
- */
-#define brcmf_fws_lock(drvr, flags)				\
-do {								\
-	flags = 0;						\
-	spin_lock_irqsave(&((drvr)->fws_spinlock), (flags));	\
-} while (0)
-
-/* using macro so sparse checking does not complain
- * about locking imbalance.
- */
-#define brcmf_fws_unlock(drvr, flags) \
-	spin_unlock_irqrestore(&((drvr)->fws_spinlock), (flags))
-
 static int brcmf_fws_notify_credit_map(struct brcmf_if *ifp,
 				       const struct brcmf_event_msg *e,
 				       void *data)
@@ -1454,7 +1484,6 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 		      struct sk_buff *skb)
 {
 	struct brcmf_fws_info *fws = drvr->fws;
-	ulong flags;
 	u8 *signal_data;
 	s16 data_len;
 	u8 type;
@@ -1474,9 +1503,6 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 		return 0;
 	}
 
-	/* lock during tlv parsing */
-	brcmf_fws_lock(drvr, flags);
-
 	fws->stats.header_pulls++;
 	data_len = signal_len;
 	signal_data = skb->data;
@@ -1570,7 +1596,6 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 	if (skb->len == 0)
 		fws->stats.header_only_pkt++;
 
-	brcmf_fws_unlock(drvr, flags);
 	return 0;
 }
 
-- 
cgit v0.10.2


From cc1b5463947a009d6303dc6dc436326f34617499 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Wed, 26 Jun 2013 14:20:22 +0200
Subject: brcmfmac: remove code and comment for older kernel support

In the code of the receive path some code was dealing with how
things were done in older kernels. Not really needed for an
upstream driver.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index 8c402e7..8e89755 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -281,8 +281,6 @@ void brcmf_txflowblock(struct device *dev, bool state)
 
 void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
 {
-	unsigned char *eth;
-	uint len;
 	struct sk_buff *skb, *pnext;
 	struct brcmf_if *ifp;
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
@@ -306,33 +304,12 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
 			continue;
 		}
 
-		/* Get the protocol, maintain skb around eth_type_trans()
-		 * The main reason for this hack is for the limitation of
-		 * Linux 2.4 where 'eth_type_trans' uses the
-		 * 'net->hard_header_len'
-		 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
-		 * coping of the packet coming from the network stack to add
-		 * BDC, Hardware header etc, during network interface
-		 * registration
-		 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
-		 * required
-		 * for BDC, Hardware header etc. and not just the ETH_HLEN
-		 */
-		eth = skb->data;
-		len = skb->len;
-
 		skb->dev = ifp->ndev;
 		skb->protocol = eth_type_trans(skb, skb->dev);
 
 		if (skb->pkt_type == PACKET_MULTICAST)
 			ifp->stats.multicast++;
 
-		skb->data = eth;
-		skb->len = len;
-
-		/* Strip header, count, deliver upward */
-		skb_pull(skb, ETH_HLEN);
-
 		/* Process special event packets */
 		brcmf_fweh_process_skb(drvr, skb);
 
@@ -348,10 +325,8 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
 			netif_rx(skb);
 		else
 			/* If the receive is not processed inside an ISR,
-			 * the softirqd must be woken explicitly to service
-			 * the NET_RX_SOFTIRQ.  In 2.6 kernels, this is handled
-			 * by netif_rx_ni(), but in earlier kernels, we need
-			 * to do it manually.
+			 * the softirqd must be woken explicitly to service the
+			 * NET_RX_SOFTIRQ. This is handled by netif_rx_ni().
 			 */
 			netif_rx_ni(skb);
 	}
-- 
cgit v0.10.2


From 0c9acaa8357a334645c96d505528a20f2fd4ac0a Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <thomas@cozybit.com>
Date: Wed, 26 Jun 2013 15:06:58 -0700
Subject: ath9k_htc: ifdef out IFTYPE_MESH advertisement

This is needed so the interface combination can still be
validated when CONFIG_MAC80211_MESH is not enabled.
Otherwise wiphy registration fails.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 925c5b0..71a183f 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -701,8 +701,10 @@ static const struct ieee80211_iface_limit if_limits[] = {
 	{ .max = 2,	.types = BIT(NL80211_IFTYPE_STATION) |
 				 BIT(NL80211_IFTYPE_P2P_CLIENT) },
 	{ .max = 2,	.types = BIT(NL80211_IFTYPE_AP) |
-				 BIT(NL80211_IFTYPE_P2P_GO) |
-				 BIT(NL80211_IFTYPE_MESH_POINT) },
+#ifdef CONFIG_MAC80211_MESH
+				 BIT(NL80211_IFTYPE_MESH_POINT) |
+#endif
+				 BIT(NL80211_IFTYPE_P2P_GO) },
 };
 
 static const struct ieee80211_iface_combination if_comb = {
-- 
cgit v0.10.2


From 0f817ed52d07873cd39c9d3f6d87fae962dc742f Mon Sep 17 00:00:00 2001
From: "John W. Linville" <linville@tuxdriver.com>
Date: Thu, 27 Jun 2013 13:50:09 -0400
Subject: ath10k: minimally handle new channel width enumeration values
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

  CC      drivers/net/wireless/ath/ath10k/mac.o
drivers/net/wireless/ath/ath10k/mac.c: In function ‘chan_to_phymode’:
drivers/net/wireless/ath/ath10k/mac.c:229:3: warning: enumeration value ‘NL80211_CHAN_WIDTH_5’ not handled in switch [-Wswitch]
drivers/net/wireless/ath/ath10k/mac.c:229:3: warning: enumeration value ‘NL80211_CHAN_WIDTH_10’ not handled in switch [-Wswitch]
drivers/net/wireless/ath/ath10k/mac.c:247:3: warning: enumeration value ‘NL80211_CHAN_WIDTH_5’ not handled in switch [-Wswitch]
drivers/net/wireless/ath/ath10k/mac.c:247:3: warning: enumeration value ‘NL80211_CHAN_WIDTH_10’ not handled in switch [-Wswitch]

Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 95e306e..da5c333 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -236,6 +236,8 @@ chan_to_phymode(const struct cfg80211_chan_def *chandef)
 		case NL80211_CHAN_WIDTH_40:
 			phymode = MODE_11NG_HT40;
 			break;
+		case NL80211_CHAN_WIDTH_5:
+		case NL80211_CHAN_WIDTH_10:
 		case NL80211_CHAN_WIDTH_80:
 		case NL80211_CHAN_WIDTH_80P80:
 		case NL80211_CHAN_WIDTH_160:
@@ -257,6 +259,8 @@ chan_to_phymode(const struct cfg80211_chan_def *chandef)
 		case NL80211_CHAN_WIDTH_80:
 			phymode = MODE_11AC_VHT80;
 			break;
+		case NL80211_CHAN_WIDTH_5:
+		case NL80211_CHAN_WIDTH_10:
 		case NL80211_CHAN_WIDTH_80P80:
 		case NL80211_CHAN_WIDTH_160:
 			phymode = MODE_UNKNOWN;
-- 
cgit v0.10.2


From 621e84d6f373dcb273ebfd772638b8e7dc3c2c48 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 26 Jun 2013 16:11:27 +0200
Subject: dev: introduce skb_scrub_packet()

The goal of this new function is to perform all needed cleanup before sending
an skb into another netns.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a7393ad..6b06023 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2384,6 +2384,7 @@ extern void	       skb_split(struct sk_buff *skb,
 				 struct sk_buff *skb1, const u32 len);
 extern int	       skb_shift(struct sk_buff *tgt, struct sk_buff *skb,
 				 int shiftlen);
+extern void	       skb_scrub_packet(struct sk_buff *skb);
 
 extern struct sk_buff *skb_segment(struct sk_buff *skb,
 				   netdev_features_t features);
diff --git a/net/core/dev.c b/net/core/dev.c
index 722f633..370354a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1652,22 +1652,13 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 		}
 	}
 
-	skb_orphan(skb);
-
 	if (unlikely(!is_skb_forwardable(dev, skb))) {
 		atomic_long_inc(&dev->rx_dropped);
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
-	skb->skb_iif = 0;
-	skb_dst_drop(skb);
-	skb->tstamp.tv64 = 0;
-	skb->pkt_type = PACKET_HOST;
+	skb_scrub_packet(skb);
 	skb->protocol = eth_type_trans(skb, dev);
-	skb->mark = 0;
-	secpath_reset(skb);
-	nf_reset(skb);
-	nf_reset_trace(skb);
 	return netif_rx(skb);
 }
 EXPORT_SYMBOL_GPL(dev_forward_skb);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 9f73eca..b1fcb87 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3492,3 +3492,26 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
 	return true;
 }
 EXPORT_SYMBOL(skb_try_coalesce);
+
+/**
+ * skb_scrub_packet - scrub an skb before sending it to another netns
+ *
+ * @skb: buffer to clean
+ *
+ * skb_scrub_packet can be used to clean an skb before injecting it in
+ * another namespace. We have to clear all information in the skb that
+ * could impact namespace isolation.
+ */
+void skb_scrub_packet(struct sk_buff *skb)
+{
+	skb_orphan(skb);
+	skb->tstamp.tv64 = 0;
+	skb->pkt_type = PACKET_HOST;
+	skb->skb_iif = 0;
+	skb_dst_drop(skb);
+	skb->mark = 0;
+	secpath_reset(skb);
+	nf_reset(skb);
+	nf_reset_trace(skb);
+}
+EXPORT_SYMBOL_GPL(skb_scrub_packet);
-- 
cgit v0.10.2


From 5e6700b3bf98fe98d630bf9c939ad4c85ce95592 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 26 Jun 2013 16:11:28 +0200
Subject: sit: add support of x-netns

This patch allows to switch the netns when packet is encapsulated or
decapsulated. In other word, the encapsulated packet is received in a netns,
where the lookup is done to find the tunnel. Once the tunnel is found, the
packet is decapsulated and injecting into the corresponding interface which
stands to another netns.

When one of the two netns is removed, the tunnel is destroyed.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index b0d9824..781b3cf 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -42,6 +42,7 @@ struct ip_tunnel {
 	struct ip_tunnel __rcu	*next;
 	struct hlist_node hash_node;
 	struct net_device	*dev;
+	struct net		*net;	/* netns for packet i/o */
 
 	int		err_count;	/* Number of arrived ICMP errors */
 	unsigned long	err_time;	/* Time when the last ICMP error
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 3b00d81..394cebc 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -304,6 +304,7 @@ static struct net_device *__ip_tunnel_create(struct net *net,
 
 	tunnel = netdev_priv(dev);
 	tunnel->parms = *parms;
+	tunnel->net = net;
 
 	err = register_netdevice(dev);
 	if (err)
@@ -453,6 +454,9 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,
 	tstats->rx_bytes += skb->len;
 	u64_stats_update_end(&tstats->syncp);
 
+	if (tunnel->net != dev_net(tunnel->dev))
+		skb_scrub_packet(skb);
+
 	if (tunnel->dev->type == ARPHRD_ETHER) {
 		skb->protocol = eth_type_trans(skb, tunnel->dev);
 		skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
@@ -541,7 +545,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 			tos = ipv6_get_dsfield((const struct ipv6hdr *)inner_iph);
 	}
 
-	rt = ip_route_output_tunnel(dev_net(dev), &fl4,
+	rt = ip_route_output_tunnel(tunnel->net, &fl4,
 				    protocol,
 				    dst, tnl_params->saddr,
 				    tunnel->parms.o_key,
@@ -602,6 +606,9 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 	}
 #endif
 
+	if (tunnel->net != dev_net(dev))
+		skb_scrub_packet(skb);
+
 	if (tunnel->err_count > 0) {
 		if (time_before(jiffies,
 				tunnel->err_time + IPTUNNEL_ERR_TIMEO)) {
@@ -888,6 +895,7 @@ int ip_tunnel_newlink(struct net_device *dev, struct nlattr *tb[],
 	if (ip_tunnel_find(itn, p, dev->type))
 		return -EEXIST;
 
+	nt->net = net;
 	nt->parms = *p;
 	err = register_netdevice(dev);
 	if (err)
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index f639866..97a0bfe 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -466,14 +466,14 @@ isatap_chksrc(struct sk_buff *skb, const struct iphdr *iph, struct ip_tunnel *t)
 
 static void ipip6_tunnel_uninit(struct net_device *dev)
 {
-	struct net *net = dev_net(dev);
-	struct sit_net *sitn = net_generic(net, sit_net_id);
+	struct ip_tunnel *tunnel = netdev_priv(dev);
+	struct sit_net *sitn = net_generic(tunnel->net, sit_net_id);
 
 	if (dev == sitn->fb_tunnel_dev) {
 		RCU_INIT_POINTER(sitn->tunnels_wc[0], NULL);
 	} else {
-		ipip6_tunnel_unlink(sitn, netdev_priv(dev));
-		ipip6_tunnel_del_prl(netdev_priv(dev), NULL);
+		ipip6_tunnel_unlink(sitn, tunnel);
+		ipip6_tunnel_del_prl(tunnel, NULL);
 	}
 	dev_put(dev);
 }
@@ -621,6 +621,8 @@ static int ipip6_rcv(struct sk_buff *skb)
 		tstats->rx_packets++;
 		tstats->rx_bytes += skb->len;
 
+		if (tunnel->net != dev_net(tunnel->dev))
+			skb_scrub_packet(skb);
 		netif_rx(skb);
 
 		return 0;
@@ -803,7 +805,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 			goto tx_error;
 	}
 
-	rt = ip_route_output_ports(dev_net(dev), &fl4, NULL,
+	rt = ip_route_output_ports(tunnel->net, &fl4, NULL,
 				   dst, tiph->saddr,
 				   0, 0,
 				   IPPROTO_IPV6, RT_TOS(tos),
@@ -858,6 +860,9 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 			tunnel->err_count = 0;
 	}
 
+	if (tunnel->net != dev_net(dev))
+		skb_scrub_packet(skb);
+
 	/*
 	 * Okay, now see if we can stuff it in the buffer as-is.
 	 */
@@ -944,7 +949,8 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
 	iph = &tunnel->parms.iph;
 
 	if (iph->daddr) {
-		struct rtable *rt = ip_route_output_ports(dev_net(dev), &fl4, NULL,
+		struct rtable *rt = ip_route_output_ports(tunnel->net, &fl4,
+							  NULL,
 							  iph->daddr, iph->saddr,
 							  0, 0,
 							  IPPROTO_IPV6,
@@ -959,7 +965,7 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
 	}
 
 	if (!tdev && tunnel->parms.link)
-		tdev = __dev_get_by_index(dev_net(dev), tunnel->parms.link);
+		tdev = __dev_get_by_index(tunnel->net, tunnel->parms.link);
 
 	if (tdev) {
 		dev->hard_header_len = tdev->hard_header_len + sizeof(struct iphdr);
@@ -972,7 +978,7 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
 
 static void ipip6_tunnel_update(struct ip_tunnel *t, struct ip_tunnel_parm *p)
 {
-	struct net *net = dev_net(t->dev);
+	struct net *net = t->net;
 	struct sit_net *sitn = net_generic(net, sit_net_id);
 
 	ipip6_tunnel_unlink(sitn, t);
@@ -1248,7 +1254,6 @@ static void ipip6_tunnel_setup(struct net_device *dev)
 	dev->priv_flags	       &= ~IFF_XMIT_DST_RELEASE;
 	dev->iflink		= 0;
 	dev->addr_len		= 4;
-	dev->features		|= NETIF_F_NETNS_LOCAL;
 	dev->features		|= NETIF_F_LLTX;
 }
 
@@ -1257,6 +1262,7 @@ static int ipip6_tunnel_init(struct net_device *dev)
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 
 	tunnel->dev = dev;
+	tunnel->net = dev_net(dev);
 
 	memcpy(dev->dev_addr, &tunnel->parms.iph.saddr, 4);
 	memcpy(dev->broadcast, &tunnel->parms.iph.daddr, 4);
@@ -1277,6 +1283,7 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
 	struct sit_net *sitn = net_generic(net, sit_net_id);
 
 	tunnel->dev = dev;
+	tunnel->net = dev_net(dev);
 	strcpy(tunnel->parms.name, dev->name);
 
 	iph->version		= 4;
@@ -1564,8 +1571,14 @@ static struct xfrm_tunnel ipip_handler __read_mostly = {
 
 static void __net_exit sit_destroy_tunnels(struct sit_net *sitn, struct list_head *head)
 {
+	struct net *net = dev_net(sitn->fb_tunnel_dev);
+	struct net_device *dev, *aux;
 	int prio;
 
+	for_each_netdev_safe(net, dev, aux)
+		if (dev->rtnl_link_ops == &sit_link_ops)
+			unregister_netdevice_queue(dev, head);
+
 	for (prio = 1; prio < 4; prio++) {
 		int h;
 		for (h = 0; h < HASH_SIZE; h++) {
@@ -1573,7 +1586,12 @@ static void __net_exit sit_destroy_tunnels(struct sit_net *sitn, struct list_hea
 
 			t = rtnl_dereference(sitn->tunnels[prio][h]);
 			while (t != NULL) {
-				unregister_netdevice_queue(t->dev, head);
+				/* If dev is in the same netns, it has already
+				 * been added to the list by the previous loop.
+				 */
+				if (dev_net(t->dev) != net)
+					unregister_netdevice_queue(t->dev,
+								   head);
 				t = rtnl_dereference(t->next);
 			}
 		}
@@ -1598,6 +1616,10 @@ static int __net_init sit_init_net(struct net *net)
 		goto err_alloc_dev;
 	}
 	dev_net_set(sitn->fb_tunnel_dev, net);
+	/* FB netdevice is special: we have one, and only one per netns.
+	 * Allowing to move it to another netns is clearly unsafe.
+	 */
+	sitn->fb_tunnel_dev->features |= NETIF_F_NETNS_LOCAL;
 
 	err = ipip6_fb_tunnel_init(sitn->fb_tunnel_dev);
 	if (err)
-- 
cgit v0.10.2


From 3a36515f729458c8efa0c124c7262d5843ad5c37 Mon Sep 17 00:00:00 2001
From: Pablo Neira <pablo@netfilter.org>
Date: Fri, 28 Jun 2013 03:04:23 +0200
Subject: netlink: fix splat in skb_clone with large messages

Since (c05cdb1 netlink: allow large data transfers from user-space),
netlink splats if it invokes skb_clone on large netlink skbs since:

* skb_shared_info was not correctly initialized.
* skb->destructor is not set in the cloned skb.

This was spotted by trinity:

[  894.990671] BUG: unable to handle kernel paging request at ffffc9000047b001
[  894.991034] IP: [<ffffffff81a212c4>] skb_clone+0x24/0xc0
[...]
[  894.991034] Call Trace:
[  894.991034]  [<ffffffff81ad299a>] nl_fib_input+0x6a/0x240
[  894.991034]  [<ffffffff81c3b7e6>] ? _raw_read_unlock+0x26/0x40
[  894.991034]  [<ffffffff81a5f189>] netlink_unicast+0x169/0x1e0
[  894.991034]  [<ffffffff81a601e1>] netlink_sendmsg+0x251/0x3d0

Fix it by:

1) introducing a new netlink_skb_clone function that is used in nl_fib_input,
   that sets our special skb->destructor in the cloned skb. Moreover, handle
   the release of the large cloned skb head area in the destructor path.

2) not allowing large skbuffs in the netlink broadcast path. I cannot find
   any reasonable use of the large data transfer using netlink in that path,
   moreover this helps to skip extra skb_clone handling.

I found two more netlink clients that are cloning the skbs, but they are
not in the sendmsg path. Therefore, the sole client cloning that I found
seems to be the fib frontend.

Thanks to Eric Dumazet for helping to address this issue.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 86fde81a..7a6c396 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -85,6 +85,22 @@ int netlink_attachskb(struct sock *sk, struct sk_buff *skb,
 void netlink_detachskb(struct sock *sk, struct sk_buff *skb);
 int netlink_sendskb(struct sock *sk, struct sk_buff *skb);
 
+static inline struct sk_buff *
+netlink_skb_clone(struct sk_buff *skb, gfp_t gfp_mask)
+{
+	struct sk_buff *nskb;
+
+	nskb = skb_clone(skb, gfp_mask);
+	if (!nskb)
+		return NULL;
+
+	/* This is a large skb, set destructor callback to release head */
+	if (is_vmalloc_addr(skb->head))
+		nskb->destructor = skb->destructor;
+
+	return nskb;
+}
+
 /*
  *	skb should fit one page. This choice is good for headerless malloc.
  *	But we should limit to 8K so that userspace does not have to
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 05a4888..b3f627a 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -961,7 +961,7 @@ static void nl_fib_input(struct sk_buff *skb)
 	    nlmsg_len(nlh) < sizeof(*frn))
 		return;
 
-	skb = skb_clone(skb, GFP_KERNEL);
+	skb = netlink_skb_clone(skb, GFP_KERNEL);
 	if (skb == NULL)
 		return;
 	nlh = nlmsg_hdr(skb);
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 6967fbc..0c61b59 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -849,7 +849,10 @@ static void netlink_skb_destructor(struct sk_buff *skb)
 	}
 #endif
 	if (is_vmalloc_addr(skb->head)) {
-		vfree(skb->head);
+		if (!skb->cloned ||
+		    !atomic_dec_return(&(skb_shinfo(skb)->dataref)))
+			vfree(skb->head);
+
 		skb->head = NULL;
 	}
 	if (skb->sk != NULL)
@@ -1532,33 +1535,31 @@ struct sock *netlink_getsockbyfilp(struct file *filp)
 	return sock;
 }
 
-static struct sk_buff *netlink_alloc_large_skb(unsigned int size)
+static struct sk_buff *netlink_alloc_large_skb(unsigned int size,
+					       int broadcast)
 {
 	struct sk_buff *skb;
 	void *data;
 
-	if (size <= NLMSG_GOODSIZE)
+	if (size <= NLMSG_GOODSIZE || broadcast)
 		return alloc_skb(size, GFP_KERNEL);
 
-	skb = alloc_skb_head(GFP_KERNEL);
-	if (skb == NULL)
-		return NULL;
+	size = SKB_DATA_ALIGN(size) +
+	       SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 
 	data = vmalloc(size);
 	if (data == NULL)
-		goto err;
+		return NULL;
 
-	skb->head	= data;
-	skb->data	= data;
-	skb_reset_tail_pointer(skb);
-	skb->end	= skb->tail + size;
-	skb->len	= 0;
-	skb->destructor = netlink_skb_destructor;
+	skb = build_skb(data, size);
+	if (skb == NULL)
+		vfree(data);
+	else {
+		skb->head_frag = 0;
+		skb->destructor = netlink_skb_destructor;
+	}
 
 	return skb;
-err:
-	kfree_skb(skb);
-	return NULL;
 }
 
 /*
@@ -2244,7 +2245,7 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock,
 	if (len > sk->sk_sndbuf - 32)
 		goto out;
 	err = -ENOBUFS;
-	skb = netlink_alloc_large_skb(len);
+	skb = netlink_alloc_large_skb(len, dst_group);
 	if (skb == NULL)
 		goto out;
 
-- 
cgit v0.10.2


From 8d2ada77f8a7f8f65fcbf71b23cbac54b64151a6 Mon Sep 17 00:00:00 2001
From: "nikolay@redhat.com" <nikolay@redhat.com>
Date: Wed, 26 Jun 2013 17:13:37 +0200
Subject: bonding: remove unnecessary setup_by_slave member

We have a member called setup_by_slave in struct bonding to denote if the
bond dev has different type than ARPHRD_ETHER, but that is already denoted
in bond's netdev type variable if it was setup by the slave, so use that
instead of the member.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 142d55d..2e8b9f1 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1382,8 +1382,6 @@ done:
 static void bond_setup_by_slave(struct net_device *bond_dev,
 				struct net_device *slave_dev)
 {
-	struct bonding *bond = netdev_priv(bond_dev);
-
 	bond_dev->header_ops	    = slave_dev->header_ops;
 
 	bond_dev->type		    = slave_dev->type;
@@ -1392,7 +1390,6 @@ static void bond_setup_by_slave(struct net_device *bond_dev,
 
 	memcpy(bond_dev->broadcast, slave_dev->broadcast,
 		slave_dev->addr_len);
-	bond->setup_by_slave = 1;
 }
 
 /* On bonding slaves other than the currently active slave, suppress
@@ -3187,7 +3184,7 @@ static int bond_slave_netdev_event(unsigned long event,
 
 	switch (event) {
 	case NETDEV_UNREGISTER:
-		if (bond->setup_by_slave)
+		if (bond_dev->type != ARPHRD_ETHER)
 			bond_release_and_destroy(bond_dev, slave_dev);
 		else
 			bond_release(bond_dev, slave_dev);
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 3fb73cc..c6c8d03 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -226,7 +226,6 @@ struct bonding {
 	rwlock_t lock;
 	rwlock_t curr_slave_lock;
 	u8	 send_peer_notif;
-	s8	 setup_by_slave;
 	u8       igmp_retrans;
 #ifdef CONFIG_PROC_FS
 	struct   proc_dir_entry *proc_entry;
-- 
cgit v0.10.2


From 97a1e6396b07581249506952a4c417dc6d2a4f9c Mon Sep 17 00:00:00 2001
From: "nikolay@redhat.com" <nikolay@redhat.com>
Date: Wed, 26 Jun 2013 17:13:38 +0200
Subject: bonding: remove unnecessary dev_addr_from_first member

In struct bonding there's a member called dev_addr_from_first which is
used to denote when the bond dev should clone the first slave's MAC
address but since we have netdev's addr_assign_type variable that is not
necessary. We clone the first slave's MAC each time we have a random MAC
set to the bond device. This has the nice side-effect of also fixing an
inconsistency - when the MAC address of the bond dev is set after its
creation, but prior to having slaves, it's not kept and the first slave's
MAC is cloned. The only way to keep the MAC was to create the bond device
with the MAC address set (e.g. through ip link). In all cases if the
bond device is left without any slaves - its MAC gets reset to a random
one as before.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 2e8b9f1..0da3c12 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1596,7 +1596,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 
 	/* If this is the first slave, then we need to set the master's hardware
 	 * address to be the same as the slave's. */
-	if (bond->slave_cnt == 0 && bond->dev_addr_from_first)
+	if (!bond->slave_cnt && bond->dev->addr_assign_type == NET_ADDR_RANDOM)
 		bond_set_dev_addr(bond->dev, slave_dev);
 
 	new_slave = kzalloc(sizeof(struct slave), GFP_KERNEL);
@@ -2041,7 +2041,6 @@ static int __bond_release_one(struct net_device *bond_dev,
 	if (bond->slave_cnt == 0) {
 		bond_set_carrier(bond);
 		eth_hw_addr_random(bond_dev);
-		bond->dev_addr_from_first = true;
 
 		if (bond_vlan_used(bond)) {
 			pr_warning("%s: Warning: clearing HW address of %s while it still has VLANs.\n",
@@ -4800,10 +4799,8 @@ static int bond_init(struct net_device *bond_dev)
 
 	/* Ensure valid dev_addr */
 	if (is_zero_ether_addr(bond_dev->dev_addr) &&
-	    bond_dev->addr_assign_type == NET_ADDR_PERM) {
+	    bond_dev->addr_assign_type == NET_ADDR_PERM)
 		eth_hw_addr_random(bond_dev);
-		bond->dev_addr_from_first = true;
-	}
 
 	return 0;
 }
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index c6c8d03..42d1c65 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -248,7 +248,6 @@ struct bonding {
 	/* debugging support via debugfs */
 	struct	 dentry *debug_dir;
 #endif /* CONFIG_DEBUG_FS */
-	bool	dev_addr_from_first;
 };
 
 static inline bool bond_vlan_used(struct bonding *bond)
-- 
cgit v0.10.2


From ae0d67505ca30c635f7763564622c9710913f293 Mon Sep 17 00:00:00 2001
From: "nikolay@redhat.com" <nikolay@redhat.com>
Date: Wed, 26 Jun 2013 17:13:39 +0200
Subject: bonding: when cloning a MAC use NET_ADDR_STOLEN

A simple semantic change, when a slave's MAC is cloned by the bond
master then set addr_assign_type to NET_ADDR_STOLEN instead of
NET_ADDR_SET. Also use bond_set_dev_addr() in BOND_FOM_ACTIVE mode
to change the bond's MAC address because the assign_type has to be
set properly.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 0da3c12..ec44580b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -833,6 +833,24 @@ static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active,
 	}
 }
 
+/**
+ * bond_set_dev_addr - clone slave's address to bond
+ * @bond_dev: bond net device
+ * @slave_dev: slave net device
+ *
+ * Should be called with RTNL held.
+ */
+static void bond_set_dev_addr(struct net_device *bond_dev,
+			      struct net_device *slave_dev)
+{
+	pr_debug("bond_dev=%p\n", bond_dev);
+	pr_debug("slave_dev=%p\n", slave_dev);
+	pr_debug("slave_dev->addr_len=%d\n", slave_dev->addr_len);
+	memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len);
+	bond_dev->addr_assign_type = NET_ADDR_STOLEN;
+	call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
+}
+
 /*
  * bond_do_fail_over_mac
  *
@@ -855,11 +873,9 @@ static void bond_do_fail_over_mac(struct bonding *bond,
 	switch (bond->params.fail_over_mac) {
 	case BOND_FOM_ACTIVE:
 		if (new_active) {
-			memcpy(bond->dev->dev_addr,  new_active->dev->dev_addr,
-			       new_active->dev->addr_len);
 			write_unlock_bh(&bond->curr_slave_lock);
 			read_unlock(&bond->lock);
-			call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev);
+			bond_set_dev_addr(bond->dev, new_active->dev);
 			read_lock(&bond->lock);
 			write_lock_bh(&bond->curr_slave_lock);
 		}
@@ -1290,17 +1306,6 @@ static void bond_netpoll_cleanup(struct net_device *bond_dev)
 
 /*---------------------------------- IOCTL ----------------------------------*/
 
-static void bond_set_dev_addr(struct net_device *bond_dev,
-			      struct net_device *slave_dev)
-{
-	pr_debug("bond_dev=%p\n", bond_dev);
-	pr_debug("slave_dev=%p\n", slave_dev);
-	pr_debug("slave_dev->addr_len=%d\n", slave_dev->addr_len);
-	memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len);
-	bond_dev->addr_assign_type = NET_ADDR_SET;
-	call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
-}
-
 static netdev_features_t bond_fix_features(struct net_device *dev,
 	netdev_features_t features)
 {
-- 
cgit v0.10.2


From 1ec047eb4751e331bc61cff0e98f0db67db8b8dc Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Thu, 27 Jun 2013 00:06:56 +0200
Subject: ipv6: introduce per-interface counter for dad-completed ipv6
 addresses

To reduce the number of unnecessary router solicitations, MLDv2 and IGMPv3
messages we need to track the number of valid (as in non-optimistic,
no-dad-failed and non-tentative) link-local addresses. Therefore, this
patch implements a valid_ll_addr_cnt in struct inet6_dev.

We now only emit router solicitations if the first link-local address
finishes duplicate address detection.

The changes for MLDv2 and IGMPv3 are in a follow-up patch.

While there, also simplify one if statement(one minor nit I made in one
of my previous patches):

if (!...)
	do();
else
	return;

<<into>>

if (...)
	return;
do();

Cc: Flavio Leitner <fbl@redhat.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Cc: David Stevens <dlstevens@us.ibm.com>
Suggested-by: David Stevens <dlstevens@us.ibm.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index e4c5a2d..1628b8f 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -166,6 +166,7 @@ struct inet6_dev {
 	struct net_device	*dev;
 
 	struct list_head	addr_list;
+	int			valid_ll_addr_cnt;
 
 	struct ifmcaddr6	*mc_list;
 	struct ifmcaddr6	*mc_tomb;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 4e4cc1f..20d92ff 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3277,6 +3277,7 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 {
 	struct net_device *dev = ifp->idev->dev;
 	struct in6_addr lladdr;
+	bool send_rs;
 
 	addrconf_del_dad_timer(ifp);
 
@@ -3290,20 +3291,25 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 	   router advertisements, start sending router solicitations.
 	 */
 
-	if (ipv6_accept_ra(ifp->idev) &&
-	    ifp->idev->cnf.rtr_solicits > 0 &&
-	    (dev->flags&IFF_LOOPBACK) == 0 &&
-	    (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {
+	read_lock_bh(&ifp->idev->lock);
+	spin_lock(&ifp->lock);
+	send_rs = ipv6_accept_ra(ifp->idev) &&
+		  ifp->idev->cnf.rtr_solicits > 0 &&
+		  (dev->flags&IFF_LOOPBACK) == 0 &&
+		  ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL &&
+		  ifp->idev->valid_ll_addr_cnt == 1;
+	spin_unlock(&ifp->lock);
+	read_unlock_bh(&ifp->idev->lock);
+
+	if (send_rs) {
 		/*
 		 *	If a host as already performed a random delay
 		 *	[...] as part of DAD [...] there is no need
 		 *	to delay again before sending the first RS
 		 */
-		if (!ipv6_get_lladdr(dev, &lladdr, IFA_F_TENTATIVE))
-			ndisc_send_rs(dev, &lladdr,
-				      &in6addr_linklocal_allrouters);
-		else
+		if (ipv6_get_lladdr(dev, &lladdr, IFA_F_TENTATIVE))
 			return;
+		ndisc_send_rs(dev, &lladdr, &in6addr_linklocal_allrouters);
 
 		write_lock_bh(&ifp->idev->lock);
 		spin_lock(&ifp->lock);
@@ -4576,6 +4582,19 @@ errout:
 		rtnl_set_sk_err(net, RTNLGRP_IPV6_PREFIX, err);
 }
 
+static void update_valid_ll_addr_cnt(struct inet6_ifaddr *ifp, int count)
+{
+	write_lock_bh(&ifp->idev->lock);
+	spin_lock(&ifp->lock);
+	if (((ifp->flags & (IFA_F_PERMANENT|IFA_F_TENTATIVE|IFA_F_OPTIMISTIC|
+			    IFA_F_DADFAILED)) == IFA_F_PERMANENT) &&
+	    (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL))
+		ifp->idev->valid_ll_addr_cnt += count;
+	WARN_ON(ifp->idev->valid_ll_addr_cnt < 0);
+	spin_unlock(&ifp->lock);
+	write_unlock_bh(&ifp->idev->lock);
+}
+
 static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 {
 	struct net *net = dev_net(ifp->idev->dev);
@@ -4584,6 +4603,8 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 
 	switch (event) {
 	case RTM_NEWADDR:
+		update_valid_ll_addr_cnt(ifp, 1);
+
 		/*
 		 * If the address was optimistic
 		 * we inserted the route at the start of
@@ -4599,6 +4620,8 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
 					      ifp->idev->dev, 0, 0);
 		break;
 	case RTM_DELADDR:
+		update_valid_ll_addr_cnt(ifp, -1);
+
 		if (ifp->idev->cnf.forwarding)
 			addrconf_leave_anycast(ifp);
 		addrconf_leave_solict(ifp->idev, &ifp->addr);
-- 
cgit v0.10.2


From b173ee488dcc545e77ed482158a2f0d06d7a5860 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Thu, 27 Jun 2013 00:07:01 +0200
Subject: ipv6: resend MLD report if a link-local address completes DAD

RFC3590/RFC3810 specifies we should resend MLD reports as soon as a
valid link-local address is available.

We now use the valid_ll_addr_cnt to check if it is necessary to resend
a new report.

Changes since Flavio Leitner's version:
a) adapt for valid_ll_addr_cnt
b) resend first reports directly in the path and just arm the timer for
   mc_qrv-1 resends.

Reported-by: Flavio Leitner <fleitner@redhat.com>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: David Stevens <dlstevens@us.ibm.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 21f70270..f68eaf5 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -155,6 +155,7 @@ extern bool ipv6_chk_mcast_addr(struct net_device *dev,
 				const struct in6_addr *group,
 				const struct in6_addr *src_addr);
 
+extern void ipv6_mc_dad_complete(struct inet6_dev *idev);
 /*
  * identify MLD packets for MLD filter exceptions
  */
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 1628b8f..736b5fb 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -174,10 +174,12 @@ struct inet6_dev {
 	unsigned char		mc_qrv;
 	unsigned char		mc_gq_running;
 	unsigned char		mc_ifc_count;
+	unsigned char		mc_dad_count;
 	unsigned long		mc_v1_seen;
 	unsigned long		mc_maxdelay;
 	struct timer_list	mc_gq_timer;	/* general query timer */
 	struct timer_list	mc_ifc_timer;	/* interface change timer */
+	struct timer_list	mc_dad_timer;	/* dad complete mc timer */
 
 	struct ifacaddr6	*ac_list;
 	rwlock_t		lock;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 20d92ff..12dd2fe 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -3277,7 +3277,7 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 {
 	struct net_device *dev = ifp->idev->dev;
 	struct in6_addr lladdr;
-	bool send_rs;
+	bool send_rs, send_mld;
 
 	addrconf_del_dad_timer(ifp);
 
@@ -3293,14 +3293,21 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
 
 	read_lock_bh(&ifp->idev->lock);
 	spin_lock(&ifp->lock);
-	send_rs = ipv6_accept_ra(ifp->idev) &&
+	send_mld = ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL &&
+		   ifp->idev->valid_ll_addr_cnt == 1;
+	send_rs = send_mld &&
+		  ipv6_accept_ra(ifp->idev) &&
 		  ifp->idev->cnf.rtr_solicits > 0 &&
-		  (dev->flags&IFF_LOOPBACK) == 0 &&
-		  ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL &&
-		  ifp->idev->valid_ll_addr_cnt == 1;
+		  (dev->flags&IFF_LOOPBACK) == 0;
 	spin_unlock(&ifp->lock);
 	read_unlock_bh(&ifp->idev->lock);
 
+	/* While dad is in progress mld report's source address is in6_addrany.
+	 * Resend with proper ll now.
+	 */
+	if (send_mld)
+		ipv6_mc_dad_complete(ifp->idev);
+
 	if (send_rs) {
 		/*
 		 *	If a host as already performed a random delay
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 72c8bfe..502c877 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -999,6 +999,14 @@ static void mld_ifc_start_timer(struct inet6_dev *idev, int delay)
 		in6_dev_hold(idev);
 }
 
+static void mld_dad_start_timer(struct inet6_dev *idev, int delay)
+{
+	int tv = net_random() % delay;
+
+	if (!mod_timer(&idev->mc_dad_timer, jiffies+tv+2))
+		in6_dev_hold(idev);
+}
+
 /*
  *	IGMP handling (alias multicast ICMPv6 messages)
  */
@@ -1815,6 +1823,46 @@ err_out:
 	goto out;
 }
 
+static void mld_resend_report(struct inet6_dev *idev)
+{
+	if (MLD_V1_SEEN(idev)) {
+		struct ifmcaddr6 *mcaddr;
+		read_lock_bh(&idev->lock);
+		for (mcaddr = idev->mc_list; mcaddr; mcaddr = mcaddr->next) {
+			if (!(mcaddr->mca_flags & MAF_NOREPORT))
+				igmp6_send(&mcaddr->mca_addr, idev->dev,
+					   ICMPV6_MGM_REPORT);
+		}
+		read_unlock_bh(&idev->lock);
+	} else {
+		mld_send_report(idev, NULL);
+	}
+}
+
+void ipv6_mc_dad_complete(struct inet6_dev *idev)
+{
+	idev->mc_dad_count = idev->mc_qrv;
+	if (idev->mc_dad_count) {
+		mld_resend_report(idev);
+		idev->mc_dad_count--;
+		if (idev->mc_dad_count)
+			mld_dad_start_timer(idev, idev->mc_maxdelay);
+	}
+}
+
+static void mld_dad_timer_expire(unsigned long data)
+{
+	struct inet6_dev *idev = (struct inet6_dev *)data;
+
+	mld_resend_report(idev);
+	if (idev->mc_dad_count) {
+		idev->mc_dad_count--;
+		if (idev->mc_dad_count)
+			mld_dad_start_timer(idev, idev->mc_maxdelay);
+	}
+	__in6_dev_put(idev);
+}
+
 static int ip6_mc_del1_src(struct ifmcaddr6 *pmc, int sfmode,
 	const struct in6_addr *psfsrc)
 {
@@ -2232,6 +2280,8 @@ void ipv6_mc_down(struct inet6_dev *idev)
 	idev->mc_gq_running = 0;
 	if (del_timer(&idev->mc_gq_timer))
 		__in6_dev_put(idev);
+	if (del_timer(&idev->mc_dad_timer))
+		__in6_dev_put(idev);
 
 	for (i = idev->mc_list; i; i=i->next)
 		igmp6_group_dropped(i);
@@ -2268,6 +2318,8 @@ void ipv6_mc_init_dev(struct inet6_dev *idev)
 	idev->mc_ifc_count = 0;
 	setup_timer(&idev->mc_ifc_timer, mld_ifc_timer_expire,
 			(unsigned long)idev);
+	setup_timer(&idev->mc_dad_timer, mld_dad_timer_expire,
+		    (unsigned long)idev);
 	idev->mc_qrv = MLD_QRV_DEFAULT;
 	idev->mc_maxdelay = IGMP6_UNSOLICITED_IVAL;
 	idev->mc_v1_seen = 0;
-- 
cgit v0.10.2


From 2ffae99d1fac272952b5a395759823717760ce37 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
Date: Thu, 27 Jun 2013 10:27:05 +0300
Subject: ipv4: use next hop exceptions also for input routes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Commit d2d68ba9 (ipv4: Cache input routes in fib_info nexthops)
assmued that "locally destined, and routed packets, never trigger
PMTU events or redirects that will be processed by us".

However, it seems that tunnel devices do trigger PMTU events in certain
cases. At least ip_gre, ip6_gre, sit, and ipip do use the inner flow's
skb_dst(skb)->ops->update_pmtu to propage mtu information from the
outer flows. These can cause the inner flow mtu to be decreased. If
next hop exceptions are not consulted for pmtu, IP fragmentation will
not be done properly for these routes.

It also seems that we really need to have the PMTU information always
for netfilter TCPMSS clamp-to-pmtu feature to work properly.

So for the time being, cache separate copies of input routes for
each next hop exception.

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Reviewed-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 44424e9..aac8553 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -56,7 +56,8 @@ struct fib_nh_exception {
 	u32				fnhe_pmtu;
 	__be32				fnhe_gw;
 	unsigned long			fnhe_expires;
-	struct rtable __rcu		*fnhe_rth;
+	struct rtable __rcu		*fnhe_rth_input;
+	struct rtable __rcu		*fnhe_rth_output;
 	unsigned long			fnhe_stamp;
 };
 
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 8f6cb7a..d5dbca5 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -169,7 +169,8 @@ static void free_nh_exceptions(struct fib_nh *nh)
 			
 			next = rcu_dereference_protected(fnhe->fnhe_next, 1);
 
-			rt_fibinfo_free(&fnhe->fnhe_rth);
+			rt_fibinfo_free(&fnhe->fnhe_rth_input);
+			rt_fibinfo_free(&fnhe->fnhe_rth_output);
 
 			kfree(fnhe);
 
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index f3fa42e..a9a54a2 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -565,10 +565,25 @@ static inline void rt_free(struct rtable *rt)
 
 static DEFINE_SPINLOCK(fnhe_lock);
 
+static void fnhe_flush_routes(struct fib_nh_exception *fnhe)
+{
+	struct rtable *rt;
+
+	rt = rcu_dereference(fnhe->fnhe_rth_input);
+	if (rt) {
+		RCU_INIT_POINTER(fnhe->fnhe_rth_input, NULL);
+		rt_free(rt);
+	}
+	rt = rcu_dereference(fnhe->fnhe_rth_output);
+	if (rt) {
+		RCU_INIT_POINTER(fnhe->fnhe_rth_output, NULL);
+		rt_free(rt);
+	}
+}
+
 static struct fib_nh_exception *fnhe_oldest(struct fnhe_hash_bucket *hash)
 {
 	struct fib_nh_exception *fnhe, *oldest;
-	struct rtable *orig;
 
 	oldest = rcu_dereference(hash->chain);
 	for (fnhe = rcu_dereference(oldest->fnhe_next); fnhe;
@@ -576,11 +591,7 @@ static struct fib_nh_exception *fnhe_oldest(struct fnhe_hash_bucket *hash)
 		if (time_before(fnhe->fnhe_stamp, oldest->fnhe_stamp))
 			oldest = fnhe;
 	}
-	orig = rcu_dereference(oldest->fnhe_rth);
-	if (orig) {
-		RCU_INIT_POINTER(oldest->fnhe_rth, NULL);
-		rt_free(orig);
-	}
+	fnhe_flush_routes(oldest);
 	return oldest;
 }
 
@@ -644,7 +655,10 @@ static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
 			fnhe->fnhe_expires = max(1UL, expires);
 		}
 		/* Update all cached dsts too */
-		rt = rcu_dereference(fnhe->fnhe_rth);
+		rt = rcu_dereference(fnhe->fnhe_rth_input);
+		if (rt)
+			fill_route_from_fnhe(rt, fnhe);
+		rt = rcu_dereference(fnhe->fnhe_rth_output);
 		if (rt)
 			fill_route_from_fnhe(rt, fnhe);
 	} else {
@@ -668,6 +682,10 @@ static void update_or_create_fnhe(struct fib_nh *nh, __be32 daddr, __be32 gw,
 		 * stale, so anyone caching it rechecks if this exception
 		 * applies to them.
 		 */
+		rt = rcu_dereference(nh->nh_rth_input);
+		if (rt)
+			rt->dst.obsolete = DST_OBSOLETE_KILL;
+
 		for_each_possible_cpu(i) {
 			struct rtable __rcu **prt;
 			prt = per_cpu_ptr(nh->nh_pcpu_rth_output, i);
@@ -1242,25 +1260,36 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe,
 	spin_lock_bh(&fnhe_lock);
 
 	if (daddr == fnhe->fnhe_daddr) {
+		struct rtable __rcu **porig;
+		struct rtable *orig;
 		int genid = fnhe_genid(dev_net(rt->dst.dev));
-		struct rtable *orig = rcu_dereference(fnhe->fnhe_rth);
+
+		if (rt_is_input_route(rt))
+			porig = &fnhe->fnhe_rth_input;
+		else
+			porig = &fnhe->fnhe_rth_output;
+		orig = rcu_dereference(*porig);
 
 		if (fnhe->fnhe_genid != genid) {
 			fnhe->fnhe_genid = genid;
 			fnhe->fnhe_gw = 0;
 			fnhe->fnhe_pmtu = 0;
 			fnhe->fnhe_expires = 0;
+			fnhe_flush_routes(fnhe);
+			orig = NULL;
 		}
 		fill_route_from_fnhe(rt, fnhe);
 		if (!rt->rt_gateway)
 			rt->rt_gateway = daddr;
 
-		rcu_assign_pointer(fnhe->fnhe_rth, rt);
-		if (orig)
-			rt_free(orig);
+		if (!(rt->dst.flags & DST_NOCACHE)) {
+			rcu_assign_pointer(*porig, rt);
+			if (orig)
+				rt_free(orig);
+			ret = true;
+		}
 
 		fnhe->fnhe_stamp = jiffies;
-		ret = true;
 	}
 	spin_unlock_bh(&fnhe_lock);
 
@@ -1492,6 +1521,7 @@ static int __mkroute_input(struct sk_buff *skb,
 			   struct in_device *in_dev,
 			   __be32 daddr, __be32 saddr, u32 tos)
 {
+	struct fib_nh_exception *fnhe;
 	struct rtable *rth;
 	int err;
 	struct in_device *out_dev;
@@ -1538,8 +1568,13 @@ static int __mkroute_input(struct sk_buff *skb,
 		}
 	}
 
+	fnhe = find_exception(&FIB_RES_NH(*res), daddr);
 	if (do_cache) {
-		rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
+		if (fnhe != NULL)
+			rth = rcu_dereference(fnhe->fnhe_rth_input);
+		else
+			rth = rcu_dereference(FIB_RES_NH(*res).nh_rth_input);
+
 		if (rt_cache_valid(rth)) {
 			skb_dst_set_noref(skb, &rth->dst);
 			goto out;
@@ -1567,7 +1602,7 @@ static int __mkroute_input(struct sk_buff *skb,
 	rth->dst.input = ip_forward;
 	rth->dst.output = ip_output;
 
-	rt_set_nexthop(rth, daddr, res, NULL, res->fi, res->type, itag);
+	rt_set_nexthop(rth, daddr, res, fnhe, res->fi, res->type, itag);
 	skb_dst_set(skb, &rth->dst);
 out:
 	err = 0;
@@ -1882,7 +1917,7 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
 
 		fnhe = find_exception(nh, fl4->daddr);
 		if (fnhe)
-			prth = &fnhe->fnhe_rth;
+			prth = &fnhe->fnhe_rth_output;
 		else {
 			if (unlikely(fl4->flowi4_flags &
 				     FLOWI_FLAG_KNOWN_NH &&
-- 
cgit v0.10.2


From 803dee958390bd3e9e42a31dd8bdc4d1a8fa319f Mon Sep 17 00:00:00 2001
From: David Chang <dchang@suse.com>
Date: Thu, 27 Jun 2013 17:16:42 +0800
Subject: usbnet: ax88179_178a: Correct a typo in description

Correct a typo in description of driver_info, it should be Gigabit

Signed-off-by: David Chang <dchang@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index bd8758f..7ce243b 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1371,7 +1371,7 @@ static int ax88179_stop(struct usbnet *dev)
 }
 
 static const struct driver_info ax88179_info = {
-	.description = "ASIX AX88179 USB 3.0 Gigibit Ethernet",
+	.description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
 	.bind = ax88179_bind,
 	.unbind = ax88179_unbind,
 	.status = ax88179_status,
@@ -1384,7 +1384,7 @@ static const struct driver_info ax88179_info = {
 };
 
 static const struct driver_info ax88178a_info = {
-	.description = "ASIX AX88178A USB 2.0 Gigibit Ethernet",
+	.description = "ASIX AX88178A USB 2.0 Gigabit Ethernet",
 	.bind = ax88179_bind,
 	.unbind = ax88179_unbind,
 	.status = ax88179_status,
-- 
cgit v0.10.2


From b8553b89edf73122eba4419cc846a31ebf7bc894 Mon Sep 17 00:00:00 2001
From: David Chang <dchang@suse.com>
Date: Thu, 27 Jun 2013 17:16:43 +0800
Subject: usbnet: ax88179_178a: add .reset_resume hook

I tested with the AX88179 usb dongle, if without .reset_resume hook,
after S3/S4 resume you have to enable network interface or reload the
dirver module manually otherwise the network interface can not work.

Signed-off-by: David Chang <dchang@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 7ce243b..1e3c302 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1433,6 +1433,7 @@ static struct usb_driver ax88179_178a_driver = {
 	.probe =	usbnet_probe,
 	.suspend =	ax88179_suspend,
 	.resume =	ax88179_resume,
+	.reset_resume =	ax88179_resume,
 	.disconnect =	usbnet_disconnect,
 	.supports_autosuspend = 1,
 	.disable_hub_initiated_lpm = 1,
-- 
cgit v0.10.2


From bd79680956573dd70bfa207af6b143aa94980b96 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 28 Jun 2013 14:02:52 +0300
Subject: pch_gbe: remove inline keyword for exported functions

There is no much sense to mark functions inline that are going to be used in
the other compile modules.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c
index 5ae03e8..82e72b2 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c
@@ -19,6 +19,7 @@
  */
 #include "pch_gbe.h"
 #include "pch_gbe_phy.h"
+#include "pch_gbe_api.h"
 
 /* bus type values */
 #define pch_gbe_bus_type_unknown	0
@@ -112,7 +113,7 @@ static void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw)
  *	0:	Successfully
  *	ENOSYS:	Function is not registered
  */
-inline s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
+s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
 {
 	if (!hw->reg) {
 		pr_err("ERROR: Registers not mapped\n");
@@ -126,7 +127,7 @@ inline s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
  * pch_gbe_hal_get_bus_info - Obtain bus information for adapter
  * @hw:	Pointer to the HW structure
  */
-inline void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
+void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
 {
 	if (!hw->func->get_bus_info)
 		pr_err("ERROR: configuration\n");
@@ -141,7 +142,7 @@ inline void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
  *	0:	Successfully
  *	ENOSYS:	Function is not registered
  */
-inline s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
+s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
 {
 	if (!hw->func->init_hw) {
 		pr_err("ERROR: configuration\n");
@@ -159,7 +160,7 @@ inline s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
  *	0:	Successfully
  *	Negative value:	Failed
  */
-inline s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset,
+s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset,
 					u16 *data)
 {
 	if (!hw->func->read_phy_reg)
@@ -176,7 +177,7 @@ inline s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset,
  *	0:	Successfully
  *	Negative value:	Failed
  */
-inline s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
+s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
 					u16 data)
 {
 	if (!hw->func->write_phy_reg)
@@ -188,7 +189,7 @@ inline s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
  * pch_gbe_hal_phy_hw_reset - Hard PHY reset
  * @hw:	    Pointer to the HW structure
  */
-inline void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
+void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
 {
 	if (!hw->func->reset_phy)
 		pr_err("ERROR: configuration\n");
@@ -200,7 +201,7 @@ inline void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
  * pch_gbe_hal_phy_sw_reset - Soft PHY reset
  * @hw:	    Pointer to the HW structure
  */
-inline void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
+void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
 {
 	if (!hw->func->sw_reset_phy)
 		pr_err("ERROR: configuration\n");
@@ -215,7 +216,7 @@ inline void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
  *	0:	Successfully
  *	ENOSYS:	Function is not registered
  */
-inline s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
+s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
 {
 	if (!hw->func->read_mac_addr) {
 		pr_err("ERROR: configuration\n");
@@ -228,7 +229,7 @@ inline s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
  * pch_gbe_hal_power_up_phy - Power up PHY
  * @hw:	Pointer to the HW structure
  */
-inline void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw)
+void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw)
 {
 	if (hw->func->power_up_phy)
 		hw->func->power_up_phy(hw);
@@ -238,7 +239,7 @@ inline void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw)
  * pch_gbe_hal_power_down_phy - Power down PHY
  * @hw:	Pointer to the HW structure
  */
-inline void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw)
+void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw)
 {
 	if (hw->func->power_down_phy)
 		hw->func->power_down_phy(hw);
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 0c1c65a..16d5ffa 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -287,7 +287,7 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
 }
 
-inline void pch_gbe_mac_load_mac_addr(struct pch_gbe_hw *hw)
+static inline void pch_gbe_mac_load_mac_addr(struct pch_gbe_hw *hw)
 {
 	iowrite32(0x01, &hw->reg->MAC_ADDR_LOAD);
 }
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c
index 28bb960..b97c657 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c
@@ -235,7 +235,7 @@ void pch_gbe_phy_power_down(struct pch_gbe_hw *hw)
  * pch_gbe_phy_set_rgmii - RGMII interface setting
  * @hw:	            Pointer to the HW structure
  */
-inline void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw)
+void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw)
 {
 	pch_gbe_phy_sw_reset(hw);
 }
@@ -270,5 +270,4 @@ void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw)
 	pch_gbe_phy_read_reg_miic(hw, PHY_PHYSP_CONTROL, &mii_reg);
 	mii_reg |= PHYSP_CTRL_ASSERT_CRS_TX;
 	pch_gbe_phy_write_reg_miic(hw, PHY_PHYSP_CONTROL, mii_reg);
-
 }
-- 
cgit v0.10.2


From 453ca931f515161902dbb325d7f39a992c3059ce Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 28 Jun 2013 14:02:53 +0300
Subject: pch_gbe: convert pr_* to netdev_*

We may use nice macros to prefix our messages with proper device name.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
index 7fb7e17..7779036 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
@@ -633,6 +633,8 @@ struct pch_gbe_adapter {
 	struct pci_dev *ptp_pdev;
 };
 
+#define pch_gbe_hw_to_adapter(hw)	container_of(hw, struct pch_gbe_adapter, hw)
+
 extern const char pch_driver_version[];
 
 /* pch_gbe_main.c */
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c
index 82e72b2..ff3ad70 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c
@@ -71,7 +71,9 @@ static s32 pch_gbe_plat_init_hw(struct pch_gbe_hw *hw)
 
 	ret_val = pch_gbe_phy_get_id(hw);
 	if (ret_val) {
-		pr_err("pch_gbe_phy_get_id error\n");
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "pch_gbe_phy_get_id error\n");
 		return ret_val;
 	}
 	pch_gbe_phy_init_setting(hw);
@@ -116,7 +118,9 @@ static void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw)
 s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
 {
 	if (!hw->reg) {
-		pr_err("ERROR: Registers not mapped\n");
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "ERROR: Registers not mapped\n");
 		return -ENOSYS;
 	}
 	pch_gbe_plat_init_function_pointers(hw);
@@ -129,10 +133,13 @@ s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
  */
 void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
 {
-	if (!hw->func->get_bus_info)
-		pr_err("ERROR: configuration\n");
-	else
-		hw->func->get_bus_info(hw);
+	if (!hw->func->get_bus_info) {
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "ERROR: configuration\n");
+		return;
+	}
+	hw->func->get_bus_info(hw);
 }
 
 /**
@@ -145,7 +152,9 @@ void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
 s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
 {
 	if (!hw->func->init_hw) {
-		pr_err("ERROR: configuration\n");
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "ERROR: configuration\n");
 		return -ENOSYS;
 	}
 	return hw->func->init_hw(hw);
@@ -191,10 +200,13 @@ s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
  */
 void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
 {
-	if (!hw->func->reset_phy)
-		pr_err("ERROR: configuration\n");
-	else
-		hw->func->reset_phy(hw);
+	if (!hw->func->reset_phy) {
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "ERROR: configuration\n");
+		return;
+	}
+	hw->func->reset_phy(hw);
 }
 
 /**
@@ -203,10 +215,13 @@ void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
  */
 void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
 {
-	if (!hw->func->sw_reset_phy)
-		pr_err("ERROR: configuration\n");
-	else
-		hw->func->sw_reset_phy(hw);
+	if (!hw->func->sw_reset_phy) {
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "ERROR: configuration\n");
+		return;
+	}
+	hw->func->sw_reset_phy(hw);
 }
 
 /**
@@ -219,7 +234,9 @@ void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
 s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
 {
 	if (!hw->func->read_mac_addr) {
-		pr_err("ERROR: configuration\n");
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "ERROR: configuration\n");
 		return -ENOSYS;
 	}
 	return hw->func->read_mac_addr(hw);
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
index 24b787b..1129db0 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c
@@ -122,7 +122,7 @@ static int pch_gbe_set_settings(struct net_device *netdev,
 	}
 	ret = mii_ethtool_sset(&adapter->mii, ecmd);
 	if (ret) {
-		pr_err("Error: mii_ethtool_sset\n");
+		netdev_err(netdev, "Error: mii_ethtool_sset\n");
 		return ret;
 	}
 	hw->mac.link_speed = speed;
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 16d5ffa..97db563 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -300,6 +300,7 @@ static inline void pch_gbe_mac_load_mac_addr(struct pch_gbe_hw *hw)
  */
 s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw)
 {
+	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
 	u32  adr1a, adr1b;
 
 	adr1a = ioread32(&hw->reg->mac_adr[0].high);
@@ -312,7 +313,7 @@ s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw)
 	hw->mac.addr[4] = (u8)(adr1b & 0xFF);
 	hw->mac.addr[5] = (u8)((adr1b >> 8) & 0xFF);
 
-	pr_debug("hw->mac.addr : %pM\n", hw->mac.addr);
+	netdev_dbg(adapter->netdev, "hw->mac.addr : %pM\n", hw->mac.addr);
 	return 0;
 }
 
@@ -324,6 +325,7 @@ s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw)
 static void pch_gbe_wait_clr_bit(void *reg, u32 bit)
 {
 	u32 tmp;
+
 	/* wait busy */
 	tmp = 1000;
 	while ((ioread32(reg) & bit) && --tmp)
@@ -340,9 +342,10 @@ static void pch_gbe_wait_clr_bit(void *reg, u32 bit)
  */
 static void pch_gbe_mac_mar_set(struct pch_gbe_hw *hw, u8 * addr, u32 index)
 {
+	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
 	u32 mar_low, mar_high, adrmask;
 
-	pr_debug("index : 0x%x\n", index);
+	netdev_dbg(adapter->netdev, "index : 0x%x\n", index);
 
 	/*
 	 * HW expects these in little endian so we reverse the byte order
@@ -468,10 +471,11 @@ static void pch_gbe_mac_mc_addr_list_update(struct pch_gbe_hw *hw,
  */
 s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw)
 {
+	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
 	struct pch_gbe_mac_info *mac = &hw->mac;
 	u32 rx_fctrl;
 
-	pr_debug("mac->fc = %u\n", mac->fc);
+	netdev_dbg(adapter->netdev, "mac->fc = %u\n", mac->fc);
 
 	rx_fctrl = ioread32(&hw->reg->RX_FCTRL);
 
@@ -493,14 +497,16 @@ s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw)
 		mac->tx_fc_enable = true;
 		break;
 	default:
-		pr_err("Flow control param set incorrectly\n");
+		netdev_err(adapter->netdev,
+			   "Flow control param set incorrectly\n");
 		return -EINVAL;
 	}
 	if (mac->link_duplex == DUPLEX_HALF)
 		rx_fctrl &= ~PCH_GBE_FL_CTRL_EN;
 	iowrite32(rx_fctrl, &hw->reg->RX_FCTRL);
-	pr_debug("RX_FCTRL reg : 0x%08x  mac->tx_fc_enable : %d\n",
-		 ioread32(&hw->reg->RX_FCTRL), mac->tx_fc_enable);
+	netdev_dbg(adapter->netdev,
+		   "RX_FCTRL reg : 0x%08x  mac->tx_fc_enable : %d\n",
+		   ioread32(&hw->reg->RX_FCTRL), mac->tx_fc_enable);
 	return 0;
 }
 
@@ -511,10 +517,11 @@ s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw)
  */
 static void pch_gbe_mac_set_wol_event(struct pch_gbe_hw *hw, u32 wu_evt)
 {
+	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
 	u32 addr_mask;
 
-	pr_debug("wu_evt : 0x%08x  ADDR_MASK reg : 0x%08x\n",
-		 wu_evt, ioread32(&hw->reg->ADDR_MASK));
+	netdev_dbg(adapter->netdev, "wu_evt : 0x%08x  ADDR_MASK reg : 0x%08x\n",
+		   wu_evt, ioread32(&hw->reg->ADDR_MASK));
 
 	if (wu_evt) {
 		/* Set Wake-On-Lan address mask */
@@ -546,6 +553,7 @@ static void pch_gbe_mac_set_wol_event(struct pch_gbe_hw *hw, u32 wu_evt)
 u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
 			u16 data)
 {
+	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
 	u32 data_out = 0;
 	unsigned int i;
 	unsigned long flags;
@@ -558,7 +566,7 @@ u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
 		udelay(20);
 	}
 	if (i == 0) {
-		pr_err("pch-gbe.miim won't go Ready\n");
+		netdev_err(adapter->netdev, "pch-gbe.miim won't go Ready\n");
 		spin_unlock_irqrestore(&hw->miim_lock, flags);
 		return 0;	/* No way to indicate timeout error */
 	}
@@ -573,9 +581,9 @@ u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
 	}
 	spin_unlock_irqrestore(&hw->miim_lock, flags);
 
-	pr_debug("PHY %s: reg=%d, data=0x%04X\n",
-		 dir == PCH_GBE_MIIM_OPER_READ ? "READ" : "WRITE", reg,
-		 dir == PCH_GBE_MIIM_OPER_READ ? data_out : data);
+	netdev_dbg(adapter->netdev, "PHY %s: reg=%d, data=0x%04X\n",
+		   dir == PCH_GBE_MIIM_OPER_READ ? "READ" : "WRITE", reg,
+		   dir == PCH_GBE_MIIM_OPER_READ ? data_out : data);
 	return (u16) data_out;
 }
 
@@ -585,6 +593,7 @@ u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
  */
 static void pch_gbe_mac_set_pause_packet(struct pch_gbe_hw *hw)
 {
+	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
 	unsigned long tmp2, tmp3;
 
 	/* Set Pause packet */
@@ -606,10 +615,13 @@ static void pch_gbe_mac_set_pause_packet(struct pch_gbe_hw *hw)
 	/* Transmit Pause Packet */
 	iowrite32(PCH_GBE_PS_PKT_RQ, &hw->reg->PAUSE_REQ);
 
-	pr_debug("PAUSE_PKT1-5 reg : 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
-		 ioread32(&hw->reg->PAUSE_PKT1), ioread32(&hw->reg->PAUSE_PKT2),
-		 ioread32(&hw->reg->PAUSE_PKT3), ioread32(&hw->reg->PAUSE_PKT4),
-		 ioread32(&hw->reg->PAUSE_PKT5));
+	netdev_dbg(adapter->netdev,
+		   "PAUSE_PKT1-5 reg : 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
+		   ioread32(&hw->reg->PAUSE_PKT1),
+		   ioread32(&hw->reg->PAUSE_PKT2),
+		   ioread32(&hw->reg->PAUSE_PKT3),
+		   ioread32(&hw->reg->PAUSE_PKT4),
+		   ioread32(&hw->reg->PAUSE_PKT5));
 
 	return;
 }
@@ -669,7 +681,7 @@ static int pch_gbe_init_phy(struct pch_gbe_adapter *adapter)
 			break;
 	}
 	adapter->hw.phy.addr = adapter->mii.phy_id;
-	pr_debug("phy_addr = %d\n", adapter->mii.phy_id);
+	netdev_dbg(netdev, "phy_addr = %d\n", adapter->mii.phy_id);
 	if (addr == 32)
 		return -EAGAIN;
 	/* Selected the phy and isolate the rest */
@@ -758,13 +770,15 @@ void pch_gbe_reinit_locked(struct pch_gbe_adapter *adapter)
  */
 void pch_gbe_reset(struct pch_gbe_adapter *adapter)
 {
+	struct net_device *netdev = adapter->netdev;
+
 	pch_gbe_mac_reset_hw(&adapter->hw);
 	/* reprogram multicast address register after reset */
-	pch_gbe_set_multi(adapter->netdev);
+	pch_gbe_set_multi(netdev);
 	/* Setup the receive address. */
 	pch_gbe_mac_init_rx_addrs(&adapter->hw, PCH_GBE_MAR_ENTRIES);
 	if (pch_gbe_hal_init_hw(&adapter->hw))
-		pr_err("Hardware Error\n");
+		netdev_err(netdev, "Hardware Error\n");
 }
 
 /**
@@ -778,7 +792,7 @@ static void pch_gbe_free_irq(struct pch_gbe_adapter *adapter)
 	free_irq(adapter->pdev->irq, netdev);
 	if (adapter->have_msi) {
 		pci_disable_msi(adapter->pdev);
-		pr_debug("call pci_disable_msi\n");
+		netdev_dbg(netdev, "call pci_disable_msi\n");
 	}
 }
 
@@ -795,7 +809,8 @@ static void pch_gbe_irq_disable(struct pch_gbe_adapter *adapter)
 	ioread32(&hw->reg->INT_ST);
 	synchronize_irq(adapter->pdev->irq);
 
-	pr_debug("INT_EN reg : 0x%08x\n", ioread32(&hw->reg->INT_EN));
+	netdev_dbg(adapter->netdev, "INT_EN reg : 0x%08x\n",
+		   ioread32(&hw->reg->INT_EN));
 }
 
 /**
@@ -809,7 +824,8 @@ static void pch_gbe_irq_enable(struct pch_gbe_adapter *adapter)
 	if (likely(atomic_dec_and_test(&adapter->irq_sem)))
 		iowrite32(PCH_GBE_INT_ENABLE_MASK, &hw->reg->INT_EN);
 	ioread32(&hw->reg->INT_ST);
-	pr_debug("INT_EN reg : 0x%08x\n", ioread32(&hw->reg->INT_EN));
+	netdev_dbg(adapter->netdev, "INT_EN reg : 0x%08x\n",
+		   ioread32(&hw->reg->INT_EN));
 }
 
 
@@ -846,9 +862,9 @@ static void pch_gbe_configure_tx(struct pch_gbe_adapter *adapter)
 	struct pch_gbe_hw *hw = &adapter->hw;
 	u32 tdba, tdlen, dctrl;
 
-	pr_debug("dma addr = 0x%08llx  size = 0x%08x\n",
-		 (unsigned long long)adapter->tx_ring->dma,
-		 adapter->tx_ring->size);
+	netdev_dbg(adapter->netdev, "dma addr = 0x%08llx  size = 0x%08x\n",
+		   (unsigned long long)adapter->tx_ring->dma,
+		   adapter->tx_ring->size);
 
 	/* Setup the HW Tx Head and Tail descriptor pointers */
 	tdba = adapter->tx_ring->dma;
@@ -894,9 +910,9 @@ static void pch_gbe_configure_rx(struct pch_gbe_adapter *adapter)
 	struct pch_gbe_hw *hw = &adapter->hw;
 	u32 rdba, rdlen, rxdma;
 
-	pr_debug("dma adr = 0x%08llx  size = 0x%08x\n",
-		 (unsigned long long)adapter->rx_ring->dma,
-		 adapter->rx_ring->size);
+	netdev_dbg(adapter->netdev, "dma adr = 0x%08llx  size = 0x%08x\n",
+		   (unsigned long long)adapter->rx_ring->dma,
+		   adapter->rx_ring->size);
 
 	pch_gbe_mac_force_mac_fc(hw);
 
@@ -907,9 +923,10 @@ static void pch_gbe_configure_rx(struct pch_gbe_adapter *adapter)
 	rxdma &= ~PCH_GBE_RX_DMA_EN;
 	iowrite32(rxdma, &hw->reg->DMA_CTRL);
 
-	pr_debug("MAC_RX_EN reg = 0x%08x  DMA_CTRL reg = 0x%08x\n",
-		 ioread32(&hw->reg->MAC_RX_EN),
-		 ioread32(&hw->reg->DMA_CTRL));
+	netdev_dbg(adapter->netdev,
+		   "MAC_RX_EN reg = 0x%08x  DMA_CTRL reg = 0x%08x\n",
+		   ioread32(&hw->reg->MAC_RX_EN),
+		   ioread32(&hw->reg->DMA_CTRL));
 
 	/* Setup the HW Rx Head and Tail Descriptor Pointers and
 	 * the Base and Length of the Rx Descriptor Ring */
@@ -977,7 +994,8 @@ static void pch_gbe_clean_tx_ring(struct pch_gbe_adapter *adapter,
 		buffer_info = &tx_ring->buffer_info[i];
 		pch_gbe_unmap_and_free_tx_resource(adapter, buffer_info);
 	}
-	pr_debug("call pch_gbe_unmap_and_free_tx_resource() %d count\n", i);
+	netdev_dbg(adapter->netdev,
+		   "call pch_gbe_unmap_and_free_tx_resource() %d count\n", i);
 
 	size = (unsigned long)sizeof(struct pch_gbe_buffer) * tx_ring->count;
 	memset(tx_ring->buffer_info, 0, size);
@@ -1009,7 +1027,8 @@ pch_gbe_clean_rx_ring(struct pch_gbe_adapter *adapter,
 		buffer_info = &rx_ring->buffer_info[i];
 		pch_gbe_unmap_and_free_rx_resource(adapter, buffer_info);
 	}
-	pr_debug("call pch_gbe_unmap_and_free_rx_resource() %d count\n", i);
+	netdev_dbg(adapter->netdev,
+		   "call pch_gbe_unmap_and_free_rx_resource() %d count\n", i);
 	size = (unsigned long)sizeof(struct pch_gbe_buffer) * rx_ring->count;
 	memset(rx_ring->buffer_info, 0, size);
 
@@ -1087,7 +1106,7 @@ static void pch_gbe_watchdog(unsigned long data)
 	struct net_device *netdev = adapter->netdev;
 	struct pch_gbe_hw *hw = &adapter->hw;
 
-	pr_debug("right now = %ld\n", jiffies);
+	netdev_dbg(netdev, "right now = %ld\n", jiffies);
 
 	pch_gbe_update_stats(adapter);
 	if ((mii_link_ok(&adapter->mii)) && (!netif_carrier_ok(netdev))) {
@@ -1095,7 +1114,7 @@ static void pch_gbe_watchdog(unsigned long data)
 		netdev->tx_queue_len = adapter->tx_queue_len;
 		/* mii library handles link maintenance tasks */
 		if (mii_ethtool_gset(&adapter->mii, &cmd)) {
-			pr_err("ethtool get setting Error\n");
+			netdev_err(netdev, "ethtool get setting Error\n");
 			mod_timer(&adapter->watchdog_timer,
 				  round_jiffies(jiffies +
 						PCH_GBE_WATCHDOG_PERIOD));
@@ -1213,7 +1232,7 @@ static void pch_gbe_tx_queue(struct pch_gbe_adapter *adapter,
 					  buffer_info->length,
 					  DMA_TO_DEVICE);
 	if (dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)) {
-		pr_err("TX DMA map failed\n");
+		netdev_err(adapter->netdev, "TX DMA map failed\n");
 		buffer_info->dma = 0;
 		buffer_info->time_stamp = 0;
 		tx_ring->next_to_use = ring_num;
@@ -1333,13 +1352,13 @@ static irqreturn_t pch_gbe_intr(int irq, void *data)
 	/* When request status is no interruption factor */
 	if (unlikely(!int_st))
 		return IRQ_NONE;	/* Not our interrupt. End processing. */
-	pr_debug("%s occur int_st = 0x%08x\n", __func__, int_st);
+	netdev_dbg(netdev, "%s occur int_st = 0x%08x\n", __func__, int_st);
 	if (int_st & PCH_GBE_INT_RX_FRAME_ERR)
 		adapter->stats.intr_rx_frame_err_count++;
 	if (int_st & PCH_GBE_INT_RX_FIFO_ERR)
 		if (!adapter->rx_stop_flag) {
 			adapter->stats.intr_rx_fifo_err_count++;
-			pr_debug("Rx fifo over run\n");
+			netdev_dbg(netdev, "Rx fifo over run\n");
 			adapter->rx_stop_flag = true;
 			int_en = ioread32(&hw->reg->INT_EN);
 			iowrite32((int_en & ~PCH_GBE_INT_RX_FIFO_ERR),
@@ -1359,7 +1378,7 @@ static irqreturn_t pch_gbe_intr(int irq, void *data)
 	/* When Rx descriptor is empty  */
 	if ((int_st & PCH_GBE_INT_RX_DSC_EMP)) {
 		adapter->stats.intr_rx_dsc_empty_count++;
-		pr_debug("Rx descriptor is empty\n");
+		netdev_dbg(netdev, "Rx descriptor is empty\n");
 		int_en = ioread32(&hw->reg->INT_EN);
 		iowrite32((int_en & ~PCH_GBE_INT_RX_DSC_EMP), &hw->reg->INT_EN);
 		if (hw->mac.tx_fc_enable) {
@@ -1382,8 +1401,8 @@ static irqreturn_t pch_gbe_intr(int irq, void *data)
 			__napi_schedule(&adapter->napi);
 		}
 	}
-	pr_debug("return = 0x%08x  INT_EN reg = 0x%08x\n",
-		 IRQ_HANDLED, ioread32(&hw->reg->INT_EN));
+	netdev_dbg(netdev, "return = 0x%08x  INT_EN reg = 0x%08x\n",
+		   IRQ_HANDLED, ioread32(&hw->reg->INT_EN));
 	return IRQ_HANDLED;
 }
 
@@ -1437,9 +1456,10 @@ pch_gbe_alloc_rx_buffers(struct pch_gbe_adapter *adapter,
 		rx_desc->buffer_addr = (buffer_info->dma);
 		rx_desc->gbec_status = DSC_INIT16;
 
-		pr_debug("i = %d  buffer_info->dma = 0x08%llx  buffer_info->length = 0x%x\n",
-			 i, (unsigned long long)buffer_info->dma,
-			 buffer_info->length);
+		netdev_dbg(netdev,
+			   "i = %d  buffer_info->dma = 0x08%llx  buffer_info->length = 0x%x\n",
+			   i, (unsigned long long)buffer_info->dma,
+			   buffer_info->length);
 
 		if (unlikely(++i == rx_ring->count))
 			i = 0;
@@ -1531,12 +1551,13 @@ pch_gbe_clean_tx(struct pch_gbe_adapter *adapter,
 	bool cleaned = false;
 	int unused, thresh;
 
-	pr_debug("next_to_clean : %d\n", tx_ring->next_to_clean);
+	netdev_dbg(adapter->netdev, "next_to_clean : %d\n",
+		   tx_ring->next_to_clean);
 
 	i = tx_ring->next_to_clean;
 	tx_desc = PCH_GBE_TX_DESC(*tx_ring, i);
-	pr_debug("gbec_status:0x%04x  dma_status:0x%04x\n",
-		 tx_desc->gbec_status, tx_desc->dma_status);
+	netdev_dbg(adapter->netdev, "gbec_status:0x%04x  dma_status:0x%04x\n",
+		   tx_desc->gbec_status, tx_desc->dma_status);
 
 	unused = PCH_GBE_DESC_UNUSED(tx_ring);
 	thresh = tx_ring->count - PCH_GBE_TX_WEIGHT;
@@ -1544,8 +1565,10 @@ pch_gbe_clean_tx(struct pch_gbe_adapter *adapter,
 	{  /* current marked clean, tx queue filling up, do extra clean */
 		int j, k;
 		if (unused < 8) {  /* tx queue nearly full */
-			pr_debug("clean_tx: transmit queue warning (%x,%x) unused=%d\n",
-				tx_ring->next_to_clean,tx_ring->next_to_use,unused);
+			netdev_dbg(adapter->netdev,
+				   "clean_tx: transmit queue warning (%x,%x) unused=%d\n",
+				   tx_ring->next_to_clean, tx_ring->next_to_use,
+				   unused);
 		}
 
 		/* current marked clean, scan for more that need cleaning. */
@@ -1557,49 +1580,56 @@ pch_gbe_clean_tx(struct pch_gbe_adapter *adapter,
 			if (++k >= tx_ring->count) k = 0;  /*increment, wrap*/
 		}
 		if (j < PCH_GBE_TX_WEIGHT) {
-			pr_debug("clean_tx: unused=%d loops=%d found tx_desc[%x,%x:%x].gbec_status=%04x\n",
-				unused,j, i,k, tx_ring->next_to_use, tx_desc->gbec_status);
+			netdev_dbg(adapter->netdev,
+				   "clean_tx: unused=%d loops=%d found tx_desc[%x,%x:%x].gbec_status=%04x\n",
+				   unused, j, i, k, tx_ring->next_to_use,
+				   tx_desc->gbec_status);
 			i = k;  /*found one to clean, usu gbec_status==2000.*/
 		}
 	}
 
 	while ((tx_desc->gbec_status & DSC_INIT16) == 0x0000) {
-		pr_debug("gbec_status:0x%04x\n", tx_desc->gbec_status);
+		netdev_dbg(adapter->netdev, "gbec_status:0x%04x\n",
+			   tx_desc->gbec_status);
 		buffer_info = &tx_ring->buffer_info[i];
 		skb = buffer_info->skb;
 		cleaned = true;
 
 		if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_ABT)) {
 			adapter->stats.tx_aborted_errors++;
-			pr_err("Transfer Abort Error\n");
+			netdev_err(adapter->netdev, "Transfer Abort Error\n");
 		} else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_CRSER)
 			  ) {
 			adapter->stats.tx_carrier_errors++;
-			pr_err("Transfer Carrier Sense Error\n");
+			netdev_err(adapter->netdev,
+				   "Transfer Carrier Sense Error\n");
 		} else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_EXCOL)
 			  ) {
 			adapter->stats.tx_aborted_errors++;
-			pr_err("Transfer Collision Abort Error\n");
+			netdev_err(adapter->netdev,
+				   "Transfer Collision Abort Error\n");
 		} else if ((tx_desc->gbec_status &
 			    (PCH_GBE_TXD_GMAC_STAT_SNGCOL |
 			     PCH_GBE_TXD_GMAC_STAT_MLTCOL))) {
 			adapter->stats.collisions++;
 			adapter->stats.tx_packets++;
 			adapter->stats.tx_bytes += skb->len;
-			pr_debug("Transfer Collision\n");
+			netdev_dbg(adapter->netdev, "Transfer Collision\n");
 		} else if ((tx_desc->gbec_status & PCH_GBE_TXD_GMAC_STAT_CMPLT)
 			  ) {
 			adapter->stats.tx_packets++;
 			adapter->stats.tx_bytes += skb->len;
 		}
 		if (buffer_info->mapped) {
-			pr_debug("unmap buffer_info->dma : %d\n", i);
+			netdev_dbg(adapter->netdev,
+				   "unmap buffer_info->dma : %d\n", i);
 			dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
 					 buffer_info->length, DMA_TO_DEVICE);
 			buffer_info->mapped = false;
 		}
 		if (buffer_info->skb) {
-			pr_debug("trim buffer_info->skb : %d\n", i);
+			netdev_dbg(adapter->netdev,
+				   "trim buffer_info->skb : %d\n", i);
 			skb_trim(buffer_info->skb, 0);
 		}
 		tx_desc->gbec_status = DSC_INIT16;
@@ -1613,8 +1643,9 @@ pch_gbe_clean_tx(struct pch_gbe_adapter *adapter,
 			break;
 		}
 	}
-	pr_debug("called pch_gbe_unmap_and_free_tx_resource() %d count\n",
-		 cleaned_count);
+	netdev_dbg(adapter->netdev,
+		   "called pch_gbe_unmap_and_free_tx_resource() %d count\n",
+		   cleaned_count);
 	if (cleaned_count > 0)  { /*skip this if nothing cleaned*/
 		/* Recover from running out of Tx resources in xmit_frame */
 		spin_lock(&tx_ring->tx_lock);
@@ -1622,12 +1653,13 @@ pch_gbe_clean_tx(struct pch_gbe_adapter *adapter,
 		{
 			netif_wake_queue(adapter->netdev);
 			adapter->stats.tx_restart_count++;
-			pr_debug("Tx wake queue\n");
+			netdev_dbg(adapter->netdev, "Tx wake queue\n");
 		}
 
 		tx_ring->next_to_clean = i;
 
-		pr_debug("next_to_clean : %d\n", tx_ring->next_to_clean);
+		netdev_dbg(adapter->netdev, "next_to_clean : %d\n",
+			   tx_ring->next_to_clean);
 		spin_unlock(&tx_ring->tx_lock);
 	}
 	return cleaned;
@@ -1684,22 +1716,22 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
 				   buffer_info->length, DMA_FROM_DEVICE);
 		buffer_info->mapped = false;
 
-		pr_debug("RxDecNo = 0x%04x  Status[DMA:0x%02x GBE:0x%04x "
-			 "TCP:0x%08x]  BufInf = 0x%p\n",
-			 i, dma_status, gbec_status, tcp_ip_status,
-			 buffer_info);
+		netdev_dbg(netdev,
+			   "RxDecNo = 0x%04x  Status[DMA:0x%02x GBE:0x%04x TCP:0x%08x]  BufInf = 0x%p\n",
+			   i, dma_status, gbec_status, tcp_ip_status,
+			   buffer_info);
 		/* Error check */
 		if (unlikely(gbec_status & PCH_GBE_RXD_GMAC_STAT_NOTOCTAL)) {
 			adapter->stats.rx_frame_errors++;
-			pr_err("Receive Not Octal Error\n");
+			netdev_err(netdev, "Receive Not Octal Error\n");
 		} else if (unlikely(gbec_status &
 				PCH_GBE_RXD_GMAC_STAT_NBLERR)) {
 			adapter->stats.rx_frame_errors++;
-			pr_err("Receive Nibble Error\n");
+			netdev_err(netdev, "Receive Nibble Error\n");
 		} else if (unlikely(gbec_status &
 				PCH_GBE_RXD_GMAC_STAT_CRCERR)) {
 			adapter->stats.rx_crc_errors++;
-			pr_err("Receive CRC Error\n");
+			netdev_err(netdev, "Receive CRC Error\n");
 		} else {
 			/* get receive length */
 			/* length convert[-3], length includes FCS length */
@@ -1730,8 +1762,9 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
 
 			napi_gro_receive(&adapter->napi, skb);
 			(*work_done)++;
-			pr_debug("Receive skb->ip_summed: %d length: %d\n",
-				 skb->ip_summed, length);
+			netdev_dbg(netdev,
+				   "Receive skb->ip_summed: %d length: %d\n",
+				   skb->ip_summed, length);
 		}
 		/* return some buffers to hardware, one at a time is too slow */
 		if (unlikely(cleaned_count >= PCH_GBE_RX_BUFFER_WRITE)) {
@@ -1787,10 +1820,10 @@ int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
 		tx_desc = PCH_GBE_TX_DESC(*tx_ring, desNo);
 		tx_desc->gbec_status = DSC_INIT16;
 	}
-	pr_debug("tx_ring->desc = 0x%p  tx_ring->dma = 0x%08llx\n"
-		 "next_to_clean = 0x%08x  next_to_use = 0x%08x\n",
-		 tx_ring->desc, (unsigned long long)tx_ring->dma,
-		 tx_ring->next_to_clean, tx_ring->next_to_use);
+	netdev_dbg(adapter->netdev,
+		   "tx_ring->desc = 0x%p  tx_ring->dma = 0x%08llx next_to_clean = 0x%08x  next_to_use = 0x%08x\n",
+		   tx_ring->desc, (unsigned long long)tx_ring->dma,
+		   tx_ring->next_to_clean, tx_ring->next_to_use);
 	return 0;
 }
 
@@ -1829,10 +1862,10 @@ int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter,
 		rx_desc = PCH_GBE_RX_DESC(*rx_ring, desNo);
 		rx_desc->gbec_status = DSC_INIT16;
 	}
-	pr_debug("rx_ring->desc = 0x%p  rx_ring->dma = 0x%08llx "
-		 "next_to_clean = 0x%08x  next_to_use = 0x%08x\n",
-		 rx_ring->desc, (unsigned long long)rx_ring->dma,
-		 rx_ring->next_to_clean, rx_ring->next_to_use);
+	netdev_dbg(adapter->netdev,
+		   "rx_ring->desc = 0x%p  rx_ring->dma = 0x%08llx next_to_clean = 0x%08x  next_to_use = 0x%08x\n",
+		   rx_ring->desc, (unsigned long long)rx_ring->dma,
+		   rx_ring->next_to_clean, rx_ring->next_to_use);
 	return 0;
 }
 
@@ -1886,9 +1919,9 @@ static int pch_gbe_request_irq(struct pch_gbe_adapter *adapter)
 	flags = IRQF_SHARED;
 	adapter->have_msi = false;
 	err = pci_enable_msi(adapter->pdev);
-	pr_debug("call pci_enable_msi\n");
+	netdev_dbg(netdev, "call pci_enable_msi\n");
 	if (err) {
-		pr_debug("call pci_enable_msi - Error: %d\n", err);
+		netdev_dbg(netdev, "call pci_enable_msi - Error: %d\n", err);
 	} else {
 		flags = 0;
 		adapter->have_msi = true;
@@ -1896,9 +1929,11 @@ static int pch_gbe_request_irq(struct pch_gbe_adapter *adapter)
 	err = request_irq(adapter->pdev->irq, &pch_gbe_intr,
 			  flags, netdev->name, netdev);
 	if (err)
-		pr_err("Unable to allocate interrupt Error: %d\n", err);
-	pr_debug("adapter->have_msi : %d  flags : 0x%04x  return : 0x%04x\n",
-		 adapter->have_msi, flags, err);
+		netdev_err(netdev, "Unable to allocate interrupt Error: %d\n",
+			   err);
+	netdev_dbg(netdev,
+		   "adapter->have_msi : %d  flags : 0x%04x  return : 0x%04x\n",
+		   adapter->have_msi, flags, err);
 	return err;
 }
 
@@ -1919,7 +1954,7 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter)
 
 	/* Ensure we have a valid MAC */
 	if (!is_valid_ether_addr(adapter->hw.mac.addr)) {
-		pr_err("Error: Invalid MAC address\n");
+		netdev_err(netdev, "Error: Invalid MAC address\n");
 		goto out;
 	}
 
@@ -1933,12 +1968,14 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter)
 
 	err = pch_gbe_request_irq(adapter);
 	if (err) {
-		pr_err("Error: can't bring device up - irq request failed\n");
+		netdev_err(netdev,
+			   "Error: can't bring device up - irq request failed\n");
 		goto out;
 	}
 	err = pch_gbe_alloc_rx_buffers_pool(adapter, rx_ring, rx_ring->count);
 	if (err) {
-		pr_err("Error: can't bring device up - alloc rx buffers pool failed\n");
+		netdev_err(netdev,
+			   "Error: can't bring device up - alloc rx buffers pool failed\n");
 		goto freeirq;
 	}
 	pch_gbe_alloc_tx_buffers(adapter, tx_ring);
@@ -2015,11 +2052,11 @@ static int pch_gbe_sw_init(struct pch_gbe_adapter *adapter)
 
 	/* Initialize the hardware-specific values */
 	if (pch_gbe_hal_setup_init_funcs(hw)) {
-		pr_err("Hardware Initialization Failure\n");
+		netdev_err(netdev, "Hardware Initialization Failure\n");
 		return -EIO;
 	}
 	if (pch_gbe_alloc_queues(adapter)) {
-		pr_err("Unable to allocate memory for queues\n");
+		netdev_err(netdev, "Unable to allocate memory for queues\n");
 		return -ENOMEM;
 	}
 	spin_lock_init(&adapter->hw.miim_lock);
@@ -2030,9 +2067,10 @@ static int pch_gbe_sw_init(struct pch_gbe_adapter *adapter)
 
 	pch_gbe_init_stats(adapter);
 
-	pr_debug("rx_buffer_len : %d  mac.min_frame_size : %d  mac.max_frame_size : %d\n",
-		 (u32) adapter->rx_buffer_len,
-		 hw->mac.min_frame_size, hw->mac.max_frame_size);
+	netdev_dbg(netdev,
+		   "rx_buffer_len : %d  mac.min_frame_size : %d  mac.max_frame_size : %d\n",
+		   (u32) adapter->rx_buffer_len,
+		   hw->mac.min_frame_size, hw->mac.max_frame_size);
 	return 0;
 }
 
@@ -2061,7 +2099,7 @@ static int pch_gbe_open(struct net_device *netdev)
 	err = pch_gbe_up(adapter);
 	if (err)
 		goto err_up;
-	pr_debug("Success End\n");
+	netdev_dbg(netdev, "Success End\n");
 	return 0;
 
 err_up:
@@ -2072,7 +2110,7 @@ err_setup_rx:
 	pch_gbe_free_tx_resources(adapter, adapter->tx_ring);
 err_setup_tx:
 	pch_gbe_reset(adapter);
-	pr_err("Error End\n");
+	netdev_err(netdev, "Error End\n");
 	return err;
 }
 
@@ -2116,8 +2154,9 @@ static int pch_gbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 	if (unlikely(!PCH_GBE_DESC_UNUSED(tx_ring))) {
 		netif_stop_queue(netdev);
 		spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
-		pr_debug("Return : BUSY  next_to use : 0x%08x  next_to clean : 0x%08x\n",
-			 tx_ring->next_to_use, tx_ring->next_to_clean);
+		netdev_dbg(netdev,
+			   "Return : BUSY  next_to use : 0x%08x  next_to clean : 0x%08x\n",
+			   tx_ring->next_to_use, tx_ring->next_to_clean);
 		return NETDEV_TX_BUSY;
 	}
 
@@ -2152,7 +2191,7 @@ static void pch_gbe_set_multi(struct net_device *netdev)
 	int i;
 	int mc_count;
 
-	pr_debug("netdev->flags : 0x%08x\n", netdev->flags);
+	netdev_dbg(netdev, "netdev->flags : 0x%08x\n", netdev->flags);
 
 	/* Check for Promiscuous and All Multicast modes */
 	rctl = ioread32(&hw->reg->RX_MODE);
@@ -2192,7 +2231,8 @@ static void pch_gbe_set_multi(struct net_device *netdev)
 					PCH_GBE_MAR_ENTRIES);
 	kfree(mta_list);
 
-	pr_debug("RX_MODE reg(check bit31,30 ADD,MLT) : 0x%08x  netdev->mc_count : 0x%08x\n",
+	netdev_dbg(netdev,
+		 "RX_MODE reg(check bit31,30 ADD,MLT) : 0x%08x  netdev->mc_count : 0x%08x\n",
 		 ioread32(&hw->reg->RX_MODE), mc_count);
 }
 
@@ -2218,12 +2258,12 @@ static int pch_gbe_set_mac(struct net_device *netdev, void *addr)
 		pch_gbe_mac_mar_set(&adapter->hw, adapter->hw.mac.addr, 0);
 		ret_val = 0;
 	}
-	pr_debug("ret_val : 0x%08x\n", ret_val);
-	pr_debug("dev_addr : %pM\n", netdev->dev_addr);
-	pr_debug("mac_addr : %pM\n", adapter->hw.mac.addr);
-	pr_debug("MAC_ADR1AB reg : 0x%08x 0x%08x\n",
-		 ioread32(&adapter->hw.reg->mac_adr[0].high),
-		 ioread32(&adapter->hw.reg->mac_adr[0].low));
+	netdev_dbg(netdev, "ret_val : 0x%08x\n", ret_val);
+	netdev_dbg(netdev, "dev_addr : %pM\n", netdev->dev_addr);
+	netdev_dbg(netdev, "mac_addr : %pM\n", adapter->hw.mac.addr);
+	netdev_dbg(netdev, "MAC_ADR1AB reg : 0x%08x 0x%08x\n",
+		   ioread32(&adapter->hw.reg->mac_adr[0].high),
+		   ioread32(&adapter->hw.reg->mac_adr[0].low));
 	return ret_val;
 }
 
@@ -2245,7 +2285,7 @@ static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu)
 	max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
 	if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
 		(max_frame > PCH_GBE_MAX_JUMBO_FRAME_SIZE)) {
-		pr_err("Invalid MTU setting\n");
+		netdev_err(netdev, "Invalid MTU setting\n");
 		return -EINVAL;
 	}
 	if (max_frame <= PCH_GBE_FRAME_SIZE_2048)
@@ -2274,9 +2314,10 @@ static int pch_gbe_change_mtu(struct net_device *netdev, int new_mtu)
 		adapter->hw.mac.max_frame_size = max_frame;
 	}
 
-	pr_debug("max_frame : %d  rx_buffer_len : %d  mtu : %d  max_frame_size : %d\n",
-		 max_frame, (u32) adapter->rx_buffer_len, netdev->mtu,
-		 adapter->hw.mac.max_frame_size);
+	netdev_dbg(netdev,
+		   "max_frame : %d  rx_buffer_len : %d  mtu : %d  max_frame_size : %d\n",
+		   max_frame, (u32) adapter->rx_buffer_len, netdev->mtu,
+		   adapter->hw.mac.max_frame_size);
 	return 0;
 }
 
@@ -2317,7 +2358,7 @@ static int pch_gbe_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 {
 	struct pch_gbe_adapter *adapter = netdev_priv(netdev);
 
-	pr_debug("cmd : 0x%04x\n", cmd);
+	netdev_dbg(netdev, "cmd : 0x%04x\n", cmd);
 
 	if (cmd == SIOCSHWTSTAMP)
 		return hwtstamp_ioctl(netdev, ifr, cmd);
@@ -2354,7 +2395,7 @@ static int pch_gbe_napi_poll(struct napi_struct *napi, int budget)
 	bool poll_end_flag = false;
 	bool cleaned = false;
 
-	pr_debug("budget : %d\n", budget);
+	netdev_dbg(adapter->netdev, "budget : %d\n", budget);
 
 	pch_gbe_clean_rx(adapter, adapter->rx_ring, &work_done, budget);
 	cleaned = pch_gbe_clean_tx(adapter, adapter->tx_ring);
@@ -2377,8 +2418,9 @@ static int pch_gbe_napi_poll(struct napi_struct *napi, int budget)
 		pch_gbe_enable_dma_rx(&adapter->hw);
 	}
 
-	pr_debug("poll_end_flag : %d  work_done : %d  budget : %d\n",
-		 poll_end_flag, work_done, budget);
+	netdev_dbg(adapter->netdev,
+		   "poll_end_flag : %d  work_done : %d  budget : %d\n",
+		   poll_end_flag, work_done, budget);
 
 	return work_done;
 }
@@ -2435,7 +2477,7 @@ static pci_ers_result_t pch_gbe_io_slot_reset(struct pci_dev *pdev)
 	struct pch_gbe_hw *hw = &adapter->hw;
 
 	if (pci_enable_device(pdev)) {
-		pr_err("Cannot re-enable PCI device after reset\n");
+		netdev_err(netdev, "Cannot re-enable PCI device after reset\n");
 		return PCI_ERS_RESULT_DISCONNECT;
 	}
 	pci_set_master(pdev);
@@ -2455,7 +2497,8 @@ static void pch_gbe_io_resume(struct pci_dev *pdev)
 
 	if (netif_running(netdev)) {
 		if (pch_gbe_up(adapter)) {
-			pr_debug("can't bring device back up after reset\n");
+			netdev_dbg(netdev,
+				   "can't bring device back up after reset\n");
 			return;
 		}
 	}
@@ -2509,7 +2552,7 @@ static int pch_gbe_resume(struct device *device)
 
 	err = pci_enable_device(pdev);
 	if (err) {
-		pr_err("Cannot enable PCI device from suspend\n");
+		netdev_err(netdev, "Cannot enable PCI device from suspend\n");
 		return err;
 	}
 	pci_set_master(pdev);
@@ -2609,7 +2652,7 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 	adapter->ptp_pdev = pci_get_bus_and_slot(adapter->pdev->bus->number,
 					       PCI_DEVFN(12, 4));
 	if (ptp_filter_init(ptp_filter, ARRAY_SIZE(ptp_filter))) {
-		pr_err("Bad ptp filter\n");
+		dev_err(&pdev->dev, "Bad ptp filter\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c
index 8653c3b..cf7c9b3 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c
@@ -237,16 +237,17 @@ static int pch_gbe_validate_option(int *value,
 	case enable_option:
 		switch (*value) {
 		case OPTION_ENABLED:
-			pr_debug("%s Enabled\n", opt->name);
+			netdev_dbg(adapter->netdev, "%s Enabled\n", opt->name);
 			return 0;
 		case OPTION_DISABLED:
-			pr_debug("%s Disabled\n", opt->name);
+			netdev_dbg(adapter->netdev, "%s Disabled\n", opt->name);
 			return 0;
 		}
 		break;
 	case range_option:
 		if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
-			pr_debug("%s set to %i\n", opt->name, *value);
+			netdev_dbg(adapter->netdev, "%s set to %i\n",
+				   opt->name, *value);
 			return 0;
 		}
 		break;
@@ -258,7 +259,8 @@ static int pch_gbe_validate_option(int *value,
 			ent = &opt->arg.l.p[i];
 			if (*value == ent->i) {
 				if (ent->str[0] != '\0')
-					pr_debug("%s\n", ent->str);
+					netdev_dbg(adapter->netdev, "%s\n",
+						   ent->str);
 				return 0;
 			}
 		}
@@ -268,8 +270,8 @@ static int pch_gbe_validate_option(int *value,
 		BUG();
 	}
 
-	pr_debug("Invalid %s value specified (%i) %s\n",
-		 opt->name, *value, opt->err);
+	netdev_dbg(adapter->netdev, "Invalid %s value specified (%i) %s\n",
+		   opt->name, *value, opt->err);
 	*value = opt->def;
 	return -1;
 }
@@ -318,7 +320,8 @@ static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
 					 .p = an_list} }
 		};
 		if (speed || dplx) {
-			pr_debug("AutoNeg specified along with Speed or Duplex, AutoNeg parameter ignored\n");
+			netdev_dbg(adapter->netdev,
+				   "AutoNeg specified along with Speed or Duplex, AutoNeg parameter ignored\n");
 			hw->phy.autoneg_advertised = opt.def;
 		} else {
 			int tmp = AutoNeg;
@@ -332,13 +335,16 @@ static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
 	case 0:
 		hw->mac.autoneg = hw->mac.fc_autoneg = 1;
 		if ((speed || dplx))
-			pr_debug("Speed and duplex autonegotiation enabled\n");
+			netdev_dbg(adapter->netdev,
+				   "Speed and duplex autonegotiation enabled\n");
 		hw->mac.link_speed = SPEED_10;
 		hw->mac.link_duplex = DUPLEX_HALF;
 		break;
 	case HALF_DUPLEX:
-		pr_debug("Half Duplex specified without Speed\n");
-		pr_debug("Using Autonegotiation at Half Duplex only\n");
+		netdev_dbg(adapter->netdev,
+			   "Half Duplex specified without Speed\n");
+		netdev_dbg(adapter->netdev,
+			   "Using Autonegotiation at Half Duplex only\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 1;
 		hw->phy.autoneg_advertised = PHY_ADVERTISE_10_HALF |
 						PHY_ADVERTISE_100_HALF;
@@ -346,8 +352,10 @@ static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
 		hw->mac.link_duplex = DUPLEX_HALF;
 		break;
 	case FULL_DUPLEX:
-		pr_debug("Full Duplex specified without Speed\n");
-		pr_debug("Using Autonegotiation at Full Duplex only\n");
+		netdev_dbg(adapter->netdev,
+			   "Full Duplex specified without Speed\n");
+		netdev_dbg(adapter->netdev,
+			   "Using Autonegotiation at Full Duplex only\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 1;
 		hw->phy.autoneg_advertised = PHY_ADVERTISE_10_FULL |
 						PHY_ADVERTISE_100_FULL |
@@ -356,8 +364,10 @@ static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
 		hw->mac.link_duplex = DUPLEX_FULL;
 		break;
 	case SPEED_10:
-		pr_debug("10 Mbps Speed specified without Duplex\n");
-		pr_debug("Using Autonegotiation at 10 Mbps only\n");
+		netdev_dbg(adapter->netdev,
+			   "10 Mbps Speed specified without Duplex\n");
+		netdev_dbg(adapter->netdev,
+			   "Using Autonegotiation at 10 Mbps only\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 1;
 		hw->phy.autoneg_advertised = PHY_ADVERTISE_10_HALF |
 						PHY_ADVERTISE_10_FULL;
@@ -365,22 +375,24 @@ static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
 		hw->mac.link_duplex = DUPLEX_HALF;
 		break;
 	case SPEED_10 + HALF_DUPLEX:
-		pr_debug("Forcing to 10 Mbps Half Duplex\n");
+		netdev_dbg(adapter->netdev, "Forcing to 10 Mbps Half Duplex\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 0;
 		hw->phy.autoneg_advertised = 0;
 		hw->mac.link_speed = SPEED_10;
 		hw->mac.link_duplex = DUPLEX_HALF;
 		break;
 	case SPEED_10 + FULL_DUPLEX:
-		pr_debug("Forcing to 10 Mbps Full Duplex\n");
+		netdev_dbg(adapter->netdev, "Forcing to 10 Mbps Full Duplex\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 0;
 		hw->phy.autoneg_advertised = 0;
 		hw->mac.link_speed = SPEED_10;
 		hw->mac.link_duplex = DUPLEX_FULL;
 		break;
 	case SPEED_100:
-		pr_debug("100 Mbps Speed specified without Duplex\n");
-		pr_debug("Using Autonegotiation at 100 Mbps only\n");
+		netdev_dbg(adapter->netdev,
+			   "100 Mbps Speed specified without Duplex\n");
+		netdev_dbg(adapter->netdev,
+			   "Using Autonegotiation at 100 Mbps only\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 1;
 		hw->phy.autoneg_advertised = PHY_ADVERTISE_100_HALF |
 						PHY_ADVERTISE_100_FULL;
@@ -388,28 +400,33 @@ static void pch_gbe_check_copper_options(struct pch_gbe_adapter *adapter)
 		hw->mac.link_duplex = DUPLEX_HALF;
 		break;
 	case SPEED_100 + HALF_DUPLEX:
-		pr_debug("Forcing to 100 Mbps Half Duplex\n");
+		netdev_dbg(adapter->netdev,
+			   "Forcing to 100 Mbps Half Duplex\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 0;
 		hw->phy.autoneg_advertised = 0;
 		hw->mac.link_speed = SPEED_100;
 		hw->mac.link_duplex = DUPLEX_HALF;
 		break;
 	case SPEED_100 + FULL_DUPLEX:
-		pr_debug("Forcing to 100 Mbps Full Duplex\n");
+		netdev_dbg(adapter->netdev,
+			   "Forcing to 100 Mbps Full Duplex\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 0;
 		hw->phy.autoneg_advertised = 0;
 		hw->mac.link_speed = SPEED_100;
 		hw->mac.link_duplex = DUPLEX_FULL;
 		break;
 	case SPEED_1000:
-		pr_debug("1000 Mbps Speed specified without Duplex\n");
+		netdev_dbg(adapter->netdev,
+			   "1000 Mbps Speed specified without Duplex\n");
 		goto full_duplex_only;
 	case SPEED_1000 + HALF_DUPLEX:
-		pr_debug("Half Duplex is not supported at 1000 Mbps\n");
+		netdev_dbg(adapter->netdev,
+			   "Half Duplex is not supported at 1000 Mbps\n");
 		/* fall through */
 	case SPEED_1000 + FULL_DUPLEX:
 full_duplex_only:
-		pr_debug("Using Autonegotiation at 1000 Mbps Full Duplex only\n");
+		netdev_dbg(adapter->netdev,
+			   "Using Autonegotiation at 1000 Mbps Full Duplex only\n");
 		hw->mac.autoneg = hw->mac.fc_autoneg = 1;
 		hw->phy.autoneg_advertised = PHY_ADVERTISE_1000_FULL;
 		hw->mac.link_speed = SPEED_1000;
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c
index b97c657..da07907 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c
@@ -97,6 +97,7 @@
  */
 s32 pch_gbe_phy_get_id(struct pch_gbe_hw *hw)
 {
+	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
 	struct pch_gbe_phy_info *phy = &hw->phy;
 	s32 ret;
 	u16 phy_id1;
@@ -115,8 +116,9 @@ s32 pch_gbe_phy_get_id(struct pch_gbe_hw *hw)
 	phy->id = (u32)phy_id1;
 	phy->id = ((phy->id << 6) | ((phy_id2 & 0xFC00) >> 10));
 	phy->revision = (u32) (phy_id2 & 0x000F);
-	pr_debug("phy->id : 0x%08x  phy->revision : 0x%08x\n",
-		 phy->id, phy->revision);
+	netdev_dbg(adapter->netdev,
+		   "phy->id : 0x%08x  phy->revision : 0x%08x\n",
+		   phy->id, phy->revision);
 	return 0;
 }
 
@@ -134,7 +136,10 @@ s32 pch_gbe_phy_read_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 *data)
 	struct pch_gbe_phy_info *phy = &hw->phy;
 
 	if (offset > PHY_MAX_REG_ADDRESS) {
-		pr_err("PHY Address %d is out of range\n", offset);
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "PHY Address %d is out of range\n",
+			   offset);
 		return -EINVAL;
 	}
 	*data = pch_gbe_mac_ctrl_miim(hw, phy->addr, PCH_GBE_HAL_MIIM_READ,
@@ -156,7 +161,10 @@ s32 pch_gbe_phy_write_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 data)
 	struct pch_gbe_phy_info *phy = &hw->phy;
 
 	if (offset > PHY_MAX_REG_ADDRESS) {
-		pr_err("PHY Address %d is out of range\n", offset);
+		struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
+
+		netdev_err(adapter->netdev, "PHY Address %d is out of range\n",
+			   offset);
 		return -EINVAL;
 	}
 	pch_gbe_mac_ctrl_miim(hw, phy->addr, PCH_GBE_HAL_MIIM_WRITE,
@@ -246,15 +254,14 @@ void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw)
  */
 void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw)
 {
-	struct pch_gbe_adapter *adapter;
+	struct pch_gbe_adapter *adapter = pch_gbe_hw_to_adapter(hw);
 	struct ethtool_cmd     cmd = { .cmd = ETHTOOL_GSET };
 	int ret;
 	u16 mii_reg;
 
-	adapter = container_of(hw, struct pch_gbe_adapter, hw);
 	ret = mii_ethtool_gset(&adapter->mii, &cmd);
 	if (ret)
-		pr_err("Error: mii_ethtool_gset\n");
+		netdev_err(adapter->netdev, "Error: mii_ethtool_gset\n");
 
 	ethtool_cmd_speed_set(&cmd, hw->mac.link_speed);
 	cmd.duplex = hw->mac.link_duplex;
@@ -263,7 +270,7 @@ void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw)
 	pch_gbe_phy_write_reg_miic(hw, MII_BMCR, BMCR_RESET);
 	ret = mii_ethtool_sset(&adapter->mii, &cmd);
 	if (ret)
-		pr_err("Error: mii_ethtool_sset\n");
+		netdev_err(adapter->netdev, "Error: mii_ethtool_sset\n");
 
 	pch_gbe_phy_sw_reset(hw);
 
-- 
cgit v0.10.2


From 29cc436cb90da4cabf404d8ceedc762fc7387b15 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 28 Jun 2013 14:02:54 +0300
Subject: pch_gbe: use managed functions pcim_* and devm_*

This makes the error handling much more simpler than open-coding everything and
in addition makes the probe function smaller an tidier.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 97db563..ab1039a 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -636,15 +636,15 @@ static void pch_gbe_mac_set_pause_packet(struct pch_gbe_hw *hw)
  */
 static int pch_gbe_alloc_queues(struct pch_gbe_adapter *adapter)
 {
-	adapter->tx_ring = kzalloc(sizeof(*adapter->tx_ring), GFP_KERNEL);
+	adapter->tx_ring = devm_kzalloc(&adapter->pdev->dev,
+					sizeof(*adapter->tx_ring), GFP_KERNEL);
 	if (!adapter->tx_ring)
 		return -ENOMEM;
 
-	adapter->rx_ring = kzalloc(sizeof(*adapter->rx_ring), GFP_KERNEL);
-	if (!adapter->rx_ring) {
-		kfree(adapter->tx_ring);
+	adapter->rx_ring = devm_kzalloc(&adapter->pdev->dev,
+					sizeof(*adapter->rx_ring), GFP_KERNEL);
+	if (!adapter->rx_ring)
 		return -ENOMEM;
-	}
 	return 0;
 }
 
@@ -2588,13 +2588,7 @@ static void pch_gbe_remove(struct pci_dev *pdev)
 
 	pch_gbe_hal_phy_hw_reset(&adapter->hw);
 
-	kfree(adapter->tx_ring);
-	kfree(adapter->rx_ring);
-
-	iounmap(adapter->hw.reg);
-	pci_release_regions(pdev);
 	free_netdev(netdev);
-	pci_disable_device(pdev);
 }
 
 static int pch_gbe_probe(struct pci_dev *pdev,
@@ -2604,7 +2598,7 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 	struct pch_gbe_adapter *adapter;
 	int ret;
 
-	ret = pci_enable_device(pdev);
+	ret = pcim_enable_device(pdev);
 	if (ret)
 		return ret;
 
@@ -2617,24 +2611,22 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 			if (ret) {
 				dev_err(&pdev->dev, "ERR: No usable DMA "
 					"configuration, aborting\n");
-				goto err_disable_device;
+				return ret;
 			}
 		}
 	}
 
-	ret = pci_request_regions(pdev, KBUILD_MODNAME);
+	ret = pcim_iomap_regions(pdev, 1 << PCH_GBE_PCI_BAR, pci_name(pdev));
 	if (ret) {
 		dev_err(&pdev->dev,
 			"ERR: Can't reserve PCI I/O and memory resources\n");
-		goto err_disable_device;
+		return ret;
 	}
 	pci_set_master(pdev);
 
 	netdev = alloc_etherdev((int)sizeof(struct pch_gbe_adapter));
-	if (!netdev) {
-		ret = -ENOMEM;
-		goto err_release_pci;
-	}
+	if (!netdev)
+		return -ENOMEM;
 	SET_NETDEV_DEV(netdev, &pdev->dev);
 
 	pci_set_drvdata(pdev, netdev);
@@ -2642,18 +2634,14 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 	adapter->netdev = netdev;
 	adapter->pdev = pdev;
 	adapter->hw.back = adapter;
-	adapter->hw.reg = pci_iomap(pdev, PCH_GBE_PCI_BAR, 0);
-	if (!adapter->hw.reg) {
-		ret = -EIO;
-		dev_err(&pdev->dev, "Can't ioremap\n");
-		goto err_free_netdev;
-	}
+	adapter->hw.reg = pcim_iomap_table(pdev)[PCH_GBE_PCI_BAR];
 
 	adapter->ptp_pdev = pci_get_bus_and_slot(adapter->pdev->bus->number,
 					       PCI_DEVFN(12, 4));
 	if (ptp_filter_init(ptp_filter, ARRAY_SIZE(ptp_filter))) {
 		dev_err(&pdev->dev, "Bad ptp filter\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_free_netdev;
 	}
 
 	netdev->netdev_ops = &pch_gbe_netdev_ops;
@@ -2671,7 +2659,7 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 	/* setup the private structure */
 	ret = pch_gbe_sw_init(adapter);
 	if (ret)
-		goto err_iounmap;
+		goto err_free_netdev;
 
 	/* Initialize PHY */
 	ret = pch_gbe_init_phy(adapter);
@@ -2727,16 +2715,8 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 
 err_free_adapter:
 	pch_gbe_hal_phy_hw_reset(&adapter->hw);
-	kfree(adapter->tx_ring);
-	kfree(adapter->rx_ring);
-err_iounmap:
-	iounmap(adapter->hw.reg);
 err_free_netdev:
 	free_netdev(netdev);
-err_release_pci:
-	pci_release_regions(pdev);
-err_disable_device:
-	pci_disable_device(pdev);
 	return ret;
 }
 
-- 
cgit v0.10.2


From cf6122be45de68bc773f64e4266db76129ea556f Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Thu, 27 Jun 2013 11:40:47 +0200
Subject: drivers: net: cpsw: add newline after MACID log

Cosmetic patch to add a newline after logging the device's MACID.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Mugunthan V  N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 101b037..2c3657a 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1700,10 +1700,10 @@ static int cpsw_probe(struct platform_device *pdev)
 
 	if (is_valid_ether_addr(data->slave_data[0].mac_addr)) {
 		memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN);
-		pr_info("Detected MACID = %pM", priv->mac_addr);
+		pr_info("Detected MACID = %pM\n", priv->mac_addr);
 	} else {
 		eth_random_addr(priv->mac_addr);
-		pr_info("Random MACID = %pM", priv->mac_addr);
+		pr_info("Random MACID = %pM\n", priv->mac_addr);
 	}
 
 	memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
-- 
cgit v0.10.2


From 3b233fe0435518169af03027aedc83d42eb28ac4 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 27 Jun 2013 13:44:26 +0200
Subject: nlmon: fix comparison in nlmon_is_valid_mtu

This patch fixes the following warning introduced in e4fc408e0e99
("packet: nlmon: virtual netlink monitoring device for packet
sockets") reported by Dan Carpenter:

warning: "drivers/net/nlmon.c:31 nlmon_is_valid_mtu()
	 warn: always true condition '(new_mtu <= ((~0 >> 1))) =>
				      (s32min-s32max <= s32max)'"

Thus, we should simply remove the test against INT_MAX. Next to that
we also need to explicitly cast the sizeof() case as the comparison
is type promoted to unsigned long so negative values are then
valid instead of invalid. While at it, this also adds a comment about
Netlink and MTUs.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
index dc364be..a0baf56 100644
--- a/drivers/net/nlmon.c
+++ b/drivers/net/nlmon.c
@@ -28,7 +28,11 @@ static netdev_tx_t nlmon_xmit(struct sk_buff *skb, struct net_device *dev)
 
 static int nlmon_is_valid_mtu(int new_mtu)
 {
-	return new_mtu >= sizeof(struct nlmsghdr) && new_mtu <= INT_MAX;
+	/* Note that in netlink we do not really have an upper limit. On
+	 * default, we use NLMSG_GOODSIZE. Here at least we should make
+	 * sure that it's at least the header size.
+	 */
+	return new_mtu >= (int) sizeof(struct nlmsghdr);
 }
 
 static int nlmon_change_mtu(struct net_device *dev, int new_mtu)
-- 
cgit v0.10.2


From 1ca01512a2a95aa061c3fc24b7c5d7fad9f606bf Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 27 Jun 2013 20:53:42 +0800
Subject: net/trivial: replace numeric with standard PM state macros

Use standard PM state macros PCI_Dx instead of numeric 0/1/2..

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/8390/ne2k-pci.c b/drivers/net/ethernet/8390/ne2k-pci.c
index 587a885..9220108 100644
--- a/drivers/net/ethernet/8390/ne2k-pci.c
+++ b/drivers/net/ethernet/8390/ne2k-pci.c
@@ -676,7 +676,7 @@ static int ne2k_pci_resume (struct pci_dev *pdev)
 	struct net_device *dev = pci_get_drvdata (pdev);
 	int rc;
 
-	pci_set_power_state(pdev, 0);
+	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 
 	rc = pci_enable_device(pdev);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index cd69ac7..2df48bb 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4364,7 +4364,7 @@ static int be_resume(struct pci_dev *pdev)
 	if (status)
 		return status;
 
-	pci_set_power_state(pdev, 0);
+	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 
 	/* tell fw we're ready to fire cmds */
@@ -4460,7 +4460,7 @@ static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
 		return PCI_ERS_RESULT_DISCONNECT;
 
 	pci_set_master(pdev);
-	pci_set_power_state(pdev, 0);
+	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 
 	/* Check if card is ok and fw is ready */
diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index d2bea3f..5115ae7 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -3069,7 +3069,7 @@ static int e100_resume(struct pci_dev *pdev)
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 	/* ack any pending wake events, disable PME */
-	pci_enable_wake(pdev, 0, 0);
+	pci_enable_wake(pdev, PCI_D0, 0);
 
 	/* disable reverse auto-negotiation */
 	if (nic->phy == phy_82552_v) {
@@ -3160,7 +3160,7 @@ static void e100_io_resume(struct pci_dev *pdev)
 	struct nic *nic = netdev_priv(netdev);
 
 	/* ack any pending wake events, disable PME */
-	pci_enable_wake(pdev, 0, 0);
+	pci_enable_wake(pdev, PCI_D0, 0);
 
 	netif_device_attach(netdev);
 	if (netif_running(netdev)) {
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index 7be9788..967bae8 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -3299,7 +3299,7 @@ static int myri10ge_resume(struct pci_dev *pdev)
 	if (mgp == NULL)
 		return -EINVAL;
 	netdev = mgp->dev;
-	pci_set_power_state(pdev, 0);	/* zeros conf space as a side effect */
+	pci_set_power_state(pdev, PCI_D0);	/* zeros conf space as a side effect */
 	msleep(5);		/* give card time to respond */
 	pci_read_config_word(mgp->pdev, PCI_VENDOR_ID, &vendor);
 	if (vendor == 0xffff) {
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index 0352345..e6acb9f 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -1817,7 +1817,7 @@ static int cp_set_eeprom(struct net_device *dev,
 /* Put the board into D3cold state and wait for WakeUp signal */
 static void cp_set_d3_state (struct cp_private *cp)
 {
-	pci_enable_wake (cp->pdev, 0, 1); /* Enable PME# generation */
+	pci_enable_wake(cp->pdev, PCI_D0, 1); /* Enable PME# generation */
 	pci_set_power_state (cp->pdev, PCI_D3hot);
 }
 
diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 59abfbc..591437e 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -372,7 +372,7 @@ static int tlan_resume(struct pci_dev *pdev)
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
-	pci_enable_wake(pdev, 0, 0);
+	pci_enable_wake(pdev, PCI_D0, 0);
 	netif_device_attach(dev);
 
 	if (netif_running(dev))
diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c
index 7691994..1d6dc41 100644
--- a/drivers/net/ethernet/via/via-velocity.c
+++ b/drivers/net/ethernet/via/via-velocity.c
@@ -3211,7 +3211,7 @@ static int velocity_resume(struct device *dev)
 	velocity_set_power_state(vptr, PCI_D0);
 
 	if (vptr->pdev) {
-		pci_enable_wake(vptr->pdev, 0, 0);
+		pci_enable_wake(vptr->pdev, PCI_D0, 0);
 		pci_restore_state(vptr->pdev);
 	}
 
diff --git a/drivers/net/wireless/orinoco/orinoco_pci.h b/drivers/net/wireless/orinoco/orinoco_pci.h
index ea7231a..43f5b9f 100644
--- a/drivers/net/wireless/orinoco/orinoco_pci.h
+++ b/drivers/net/wireless/orinoco/orinoco_pci.h
@@ -38,7 +38,7 @@ static int orinoco_pci_resume(struct pci_dev *pdev)
 	struct net_device *dev = priv->ndev;
 	int err;
 
-	pci_set_power_state(pdev, 0);
+	pci_set_power_state(pdev, PCI_D0);
 	err = pci_enable_device(pdev);
 	if (err) {
 		printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
-- 
cgit v0.10.2


From d36a21da415b8e6545ae8b4eb6b23eea2ce001c8 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 27 Jun 2013 21:00:11 +0800
Subject: ssb/trivial: replace numeric with standard PM state macros

Use standard PM state macros PCI_Dx instead of numeric 0/1/2..

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/ssb/pcihost_wrapper.c b/drivers/ssb/pcihost_wrapper.c
index 32ed1fa..69161bb 100644
--- a/drivers/ssb/pcihost_wrapper.c
+++ b/drivers/ssb/pcihost_wrapper.c
@@ -38,7 +38,7 @@ static int ssb_pcihost_resume(struct pci_dev *dev)
 	struct ssb_bus *ssb = pci_get_drvdata(dev);
 	int err;
 
-	pci_set_power_state(dev, 0);
+	pci_set_power_state(dev, PCI_D0);
 	err = pci_enable_device(dev);
 	if (err)
 		return err;
-- 
cgit v0.10.2


From 008aebde9be37e7e1248332b1983976e354327ea Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Sat, 29 Jun 2013 13:16:59 +0200
Subject: bonding: combine pr_debugs in bond_set_dev_addr into one

Combine the multiple pr_debugs in bond_set_dev_addr into one pr_debug.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index ec44580b..742c193 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -843,9 +843,8 @@ static void bond_hw_addr_swap(struct bonding *bond, struct slave *new_active,
 static void bond_set_dev_addr(struct net_device *bond_dev,
 			      struct net_device *slave_dev)
 {
-	pr_debug("bond_dev=%p\n", bond_dev);
-	pr_debug("slave_dev=%p\n", slave_dev);
-	pr_debug("slave_dev->addr_len=%d\n", slave_dev->addr_len);
+	pr_debug("bond_dev=%p slave_dev=%p slave_dev->addr_len=%d\n",
+		 bond_dev, slave_dev, slave_dev->addr_len);
 	memcpy(bond_dev->dev_addr, slave_dev->dev_addr, slave_dev->addr_len);
 	bond_dev->addr_assign_type = NET_ADDR_STOLEN;
 	call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
-- 
cgit v0.10.2


From 496e4ae7dc944faa1721bfda7e9d834d5611a874 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Sat, 29 Jun 2013 14:15:47 +0200
Subject: netfilter: nf_queue: add NFQA_SKB_CSUM_NOTVERIFIED info flag

The common case is that TCP/IP checksums have already been
verified, e.g. by hardware (rx checksum offload), or conntrack.

Userspace can use this flag to determine when the checksum
has not been validated yet.

If the flag is set, this doesn't necessarily mean that the packet has
an invalid checksum, e.g. if NIC doesn't support rx checksum.

Userspace that sucessfully enabled NFQA_CFG_F_GSO queue feature flag can
infer that IP/TCP checksum has already been validated if either the
SKB_INFO attribute is not present or the NFQA_SKB_CSUM_NOTVERIFIED
flag is unset.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/include/uapi/linux/netfilter/nfnetlink_queue.h b/include/uapi/linux/netfilter/nfnetlink_queue.h
index a2308ae..3a9b921 100644
--- a/include/uapi/linux/netfilter/nfnetlink_queue.h
+++ b/include/uapi/linux/netfilter/nfnetlink_queue.h
@@ -105,5 +105,7 @@ enum nfqnl_attr_config {
 #define NFQA_SKB_CSUMNOTREADY (1 << 0)
 /* packet is GSO (i.e., exceeds device mtu) */
 #define NFQA_SKB_GSO (1 << 1)
+/* csum not validated (incoming device doesn't support hw checksum, etc.) */
+#define NFQA_SKB_CSUM_NOTVERIFIED (1 << 2)
 
 #endif /* _NFNETLINK_QUEUE_H */
diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index 299a48a..971ea14 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -280,12 +280,17 @@ nfqnl_zcopy(struct sk_buff *to, const struct sk_buff *from, int len, int hlen)
 	skb_shinfo(to)->nr_frags = j;
 }
 
-static int nfqnl_put_packet_info(struct sk_buff *nlskb, struct sk_buff *packet)
+static int
+nfqnl_put_packet_info(struct sk_buff *nlskb, struct sk_buff *packet,
+		      bool csum_verify)
 {
 	__u32 flags = 0;
 
 	if (packet->ip_summed == CHECKSUM_PARTIAL)
 		flags = NFQA_SKB_CSUMNOTREADY;
+	else if (csum_verify)
+		flags = NFQA_SKB_CSUM_NOTVERIFIED;
+
 	if (skb_is_gso(packet))
 		flags |= NFQA_SKB_GSO;
 
@@ -310,6 +315,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 	struct net_device *outdev;
 	struct nf_conn *ct = NULL;
 	enum ip_conntrack_info uninitialized_var(ctinfo);
+	bool csum_verify;
 
 	size =    nlmsg_total_size(sizeof(struct nfgenmsg))
 		+ nla_total_size(sizeof(struct nfqnl_msg_packet_hdr))
@@ -327,6 +333,12 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 	if (entskb->tstamp.tv64)
 		size += nla_total_size(sizeof(struct nfqnl_msg_packet_timestamp));
 
+	if (entry->hook <= NF_INET_FORWARD ||
+	   (entry->hook == NF_INET_POST_ROUTING && entskb->sk == NULL))
+		csum_verify = !skb_csum_unnecessary(entskb);
+	else
+		csum_verify = false;
+
 	outdev = entry->outdev;
 
 	switch ((enum nfqnl_config_mode)ACCESS_ONCE(queue->copy_mode)) {
@@ -476,7 +488,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 	    nla_put_be32(skb, NFQA_CAP_LEN, htonl(cap_len)))
 		goto nla_put_failure;
 
-	if (nfqnl_put_packet_info(skb, entskb))
+	if (nfqnl_put_packet_info(skb, entskb, csum_verify))
 		goto nla_put_failure;
 
 	if (data_len) {
-- 
cgit v0.10.2


From b01978cacfd7e3a4ca703b0e48f2e18de8865df5 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Thu, 27 Jun 2013 19:05:21 +0300
Subject: net/mlx4_core: Dynamic VST to VST vlan/qos changes

Within VST mode, enable modifying the vlan and/or qos
for a VF without requiring unbind/rebind.

This requires firmware which supports the UPDATE_QP command.
(If the command is not available, we fall back to requiring
unbind/bind to activate these changes).

To avoid race conditions with modify-qp on QPs that are affected
by update-qp, this operation is performed on the comm_wq.

If the update operation succeeds for all the necessary QPs, a
vlan_unregister is performed for the abandoned vlan id.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index df04c82..7b92789 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -112,6 +112,14 @@ enum {
 	GO_BIT_TIMEOUT_MSECS	= 10000
 };
 
+enum mlx4_vlan_transition {
+	MLX4_VLAN_TRANSITION_VST_VST = 0,
+	MLX4_VLAN_TRANSITION_VST_VGT = 1,
+	MLX4_VLAN_TRANSITION_VGT_VST = 2,
+	MLX4_VLAN_TRANSITION_VGT_VGT = 3,
+};
+
+
 struct mlx4_cmd_context {
 	struct completion	done;
 	int			result;
@@ -792,6 +800,15 @@ static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave,
 				    vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
 }
 
+int MLX4_CMD_UPDATE_QP_wrapper(struct mlx4_dev *dev, int slave,
+		     struct mlx4_vhcr *vhcr,
+		     struct mlx4_cmd_mailbox *inbox,
+		     struct mlx4_cmd_mailbox *outbox,
+		     struct mlx4_cmd_info *cmd)
+{
+	return -EPERM;
+}
+
 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave,
 		     struct mlx4_vhcr *vhcr,
 		     struct mlx4_cmd_mailbox *inbox,
@@ -1226,6 +1243,15 @@ static struct mlx4_cmd_info cmd_info[] = {
 		.wrapper = mlx4_GEN_QP_wrapper
 	},
 	{
+		.opcode = MLX4_CMD_UPDATE_QP,
+		.has_inbox = false,
+		.has_outbox = false,
+		.out_is_imm = false,
+		.encode_slave_id = false,
+		.verify = NULL,
+		.wrapper = MLX4_CMD_UPDATE_QP_wrapper
+	},
+	{
 		.opcode = MLX4_CMD_CONF_SPECIAL_QP,
 		.has_inbox = false,
 		.has_outbox = false,
@@ -1495,6 +1521,72 @@ out:
 	return ret;
 }
 
+
+int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
+					    int slave, int port)
+{
+	struct mlx4_vport_oper_state *vp_oper;
+	struct mlx4_vport_state *vp_admin;
+	struct mlx4_vf_immed_vlan_work *work;
+	int err;
+	int admin_vlan_ix = NO_INDX;
+
+	vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
+	vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
+
+	if (vp_oper->state.default_vlan == vp_admin->default_vlan &&
+	    vp_oper->state.default_qos == vp_admin->default_qos)
+		return 0;
+
+	work = kzalloc(sizeof(*work), GFP_KERNEL);
+	if (!work)
+		return -ENOMEM;
+
+	if (vp_oper->state.default_vlan != vp_admin->default_vlan) {
+		err = __mlx4_register_vlan(&priv->dev, port,
+					   vp_admin->default_vlan,
+					   &admin_vlan_ix);
+		if (err) {
+			mlx4_warn((&priv->dev),
+				  "No vlan resources slave %d, port %d\n",
+				  slave, port);
+			return err;
+		}
+		work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN;
+		mlx4_dbg((&(priv->dev)),
+			 "alloc vlan %d idx  %d slave %d port %d\n",
+			 (int)(vp_admin->default_vlan),
+			 admin_vlan_ix, slave, port);
+	}
+
+	/* save original vlan ix and vlan id */
+	work->orig_vlan_id = vp_oper->state.default_vlan;
+	work->orig_vlan_ix = vp_oper->vlan_idx;
+
+	/* handle new qos */
+	if (vp_oper->state.default_qos != vp_admin->default_qos)
+		work->flags |= MLX4_VF_IMMED_VLAN_FLAG_QOS;
+
+	if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN)
+		vp_oper->vlan_idx = admin_vlan_ix;
+
+	vp_oper->state.default_vlan = vp_admin->default_vlan;
+	vp_oper->state.default_qos = vp_admin->default_qos;
+
+	/* iterate over QPs owned by this slave, using UPDATE_QP */
+	work->port = port;
+	work->slave = slave;
+	work->qos = vp_oper->state.default_qos;
+	work->vlan_id = vp_oper->state.default_vlan;
+	work->vlan_ix = vp_oper->vlan_idx;
+	work->priv = priv;
+	INIT_WORK(&work->work, mlx4_vf_immed_vlan_work_handler);
+	queue_work(priv->mfunc.master.comm_wq, &work->work);
+
+	return 0;
+}
+
+
 static int mlx4_master_activate_admin_state(struct mlx4_priv *priv, int slave)
 {
 	int port, err;
@@ -2109,11 +2201,18 @@ int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac)
 }
 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac);
 
+static int calculate_transition(u16 oper_vlan, u16 admin_vlan)
+{
+	return (2 * (oper_vlan == MLX4_VGT) + (admin_vlan == MLX4_VGT));
+}
+
 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
-	struct mlx4_vport_state *s_info;
+	struct mlx4_vport_oper_state *vf_oper;
+	struct mlx4_vport_state *vf_admin;
 	int slave;
+	enum mlx4_vlan_transition vlan_trans;
 
 	if ((!mlx4_is_master(dev)) ||
 	    !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL))
@@ -2126,12 +2225,25 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 	if (slave < 0)
 		return -EINVAL;
 
-	s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
+	vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
+	vf_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
+
 	if ((0 == vlan) && (0 == qos))
-		s_info->default_vlan = MLX4_VGT;
+		vf_admin->default_vlan = MLX4_VGT;
 	else
-		s_info->default_vlan = vlan;
-	s_info->default_qos = qos;
+		vf_admin->default_vlan = vlan;
+	vf_admin->default_qos = qos;
+
+	vlan_trans = calculate_transition(vf_oper->state.default_vlan,
+					  vf_admin->default_vlan);
+
+	if (priv->mfunc.master.slave_state[slave].active &&
+	    dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP &&
+	    vlan_trans == MLX4_VLAN_TRANSITION_VST_VST) {
+		mlx4_info(dev, "updating vf %d port %d config params immediately\n",
+			  vf, port);
+		mlx4_master_immediate_activate_vlan_qos(priv, slave, port);
+	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan);
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 569bbe3..8873d68 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -133,7 +133,8 @@ static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags)
 		[4] = "Automatic MAC reassignment support",
 		[5] = "Time stamping support",
 		[6] = "VST (control vlan insertion/stripping) support",
-		[7] = "FSM (MAC anti-spoofing) support"
+		[7] = "FSM (MAC anti-spoofing) support",
+		[8] = "Dynamic QP updates support"
 	};
 	int i;
 
@@ -659,6 +660,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 			 QUERY_DEV_CAP_MAX_COUNTERS_OFFSET);
 
 	MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
+	if (field32 & (1 << 16))
+		dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;
 	if (field32 & (1 << 26))
 		dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_VLAN_CONTROL;
 	if (field32 & (1 << 20))
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 7527293..5abcb65 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -571,6 +571,24 @@ struct mlx4_cmd {
 	u8			comm_toggle;
 };
 
+enum {
+	MLX4_VF_IMMED_VLAN_FLAG_VLAN = 1 << 0,
+	MLX4_VF_IMMED_VLAN_FLAG_QOS = 1 << 1,
+};
+struct mlx4_vf_immed_vlan_work {
+	struct work_struct	work;
+	struct mlx4_priv	*priv;
+	int			flags;
+	int			slave;
+	int			vlan_ix;
+	int			orig_vlan_ix;
+	u8			port;
+	u8			qos;
+	u16			vlan_id;
+	u16			orig_vlan_id;
+};
+
+
 struct mlx4_uar_table {
 	struct mlx4_bitmap	bitmap;
 };
@@ -1218,4 +1236,6 @@ static inline spinlock_t *mlx4_tlock(struct mlx4_dev *dev)
 
 #define NOT_MASKED_PD_BITS 17
 
+void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work);
+
 #endif /* MLX4_H */
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 1157f02..46323a2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -101,6 +101,8 @@ struct res_qp {
 	spinlock_t		mcg_spl;
 	int			local_qpn;
 	atomic_t		ref_count;
+	u32			qpc_flags;
+	u8			sched_queue;
 };
 
 enum res_mtt_states {
@@ -355,7 +357,7 @@ static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox,
 
 static int update_vport_qp_param(struct mlx4_dev *dev,
 				 struct mlx4_cmd_mailbox *inbox,
-				 u8 slave)
+				 u8 slave, u32 qpn)
 {
 	struct mlx4_qp_context	*qpc = inbox->buf + 8;
 	struct mlx4_vport_oper_state *vp_oper;
@@ -369,9 +371,17 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
 
 	if (MLX4_VGT != vp_oper->state.default_vlan) {
 		qp_type	= (be32_to_cpu(qpc->flags) >> 16) & 0xff;
-		if (MLX4_QP_ST_RC == qp_type)
+		if (MLX4_QP_ST_RC == qp_type ||
+		    (MLX4_QP_ST_UD == qp_type &&
+		     !mlx4_is_qp_reserved(dev, qpn)))
 			return -EINVAL;
 
+		/* the reserved QPs (special, proxy, tunnel)
+		 * do not operate over vlans
+		 */
+		if (mlx4_is_qp_reserved(dev, qpn))
+			return 0;
+
 		/* force strip vlan by clear vsd */
 		qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN);
 		if (0 != vp_oper->state.default_vlan) {
@@ -2114,6 +2124,8 @@ int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
 	if (err)
 		return err;
 	qp->local_qpn = local_qpn;
+	qp->sched_queue = 0;
+	qp->qpc_flags = be32_to_cpu(qpc->flags);
 
 	err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
 	if (err)
@@ -2836,6 +2848,9 @@ int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
 {
 	int err;
 	struct mlx4_qp_context *qpc = inbox->buf + 8;
+	int qpn = vhcr->in_modifier & 0x7fffff;
+	struct res_qp *qp;
+	u8 orig_sched_queue;
 
 	err = verify_qp_parameters(dev, inbox, QP_TRANS_INIT2RTR, slave);
 	if (err)
@@ -2844,11 +2859,30 @@ int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
 	update_pkey_index(dev, slave, inbox);
 	update_gid(dev, inbox, (u8)slave);
 	adjust_proxy_tun_qkey(dev, vhcr, qpc);
-	err = update_vport_qp_param(dev, inbox, slave);
+	orig_sched_queue = qpc->pri_path.sched_queue;
+	err = update_vport_qp_param(dev, inbox, slave, qpn);
 	if (err)
 		return err;
 
-	return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
+	err = get_res(dev, slave, qpn, RES_QP, &qp);
+	if (err)
+		return err;
+	if (qp->com.from_state != RES_QP_HW) {
+		err = -EBUSY;
+		goto out;
+	}
+
+	err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd);
+out:
+	/* if no error, save sched queue value passed in by VF. This is
+	 * essentially the QOS value provided by the VF. This will be useful
+	 * if we allow dynamic changes from VST back to VGT
+	 */
+	if (!err)
+		qp->sched_queue = orig_sched_queue;
+
+	put_res(dev, slave, qpn, RES_QP);
+	return err;
 }
 
 int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave,
@@ -3932,3 +3966,106 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
 	rem_slave_xrcdns(dev, slave);
 	mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
 }
+
+void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
+{
+	struct mlx4_vf_immed_vlan_work *work =
+		container_of(_work, struct mlx4_vf_immed_vlan_work, work);
+	struct mlx4_cmd_mailbox *mailbox;
+	struct mlx4_update_qp_context *upd_context;
+	struct mlx4_dev *dev = &work->priv->dev;
+	struct mlx4_resource_tracker *tracker =
+		&work->priv->mfunc.master.res_tracker;
+	struct list_head *qp_list =
+		&tracker->slave_list[work->slave].res_list[RES_QP];
+	struct res_qp *qp;
+	struct res_qp *tmp;
+	u64 qp_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE));
+
+	int err;
+	int port, errors = 0;
+	u8 vlan_control;
+
+	if (mlx4_is_slave(dev)) {
+		mlx4_warn(dev, "Trying to update-qp in slave %d\n",
+			  work->slave);
+		goto out;
+	}
+
+	mailbox = mlx4_alloc_cmd_mailbox(dev);
+	if (IS_ERR(mailbox))
+		goto out;
+
+	if (!work->vlan_id)
+		vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
+			MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
+	else
+		vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
+			MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
+			MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
+
+	upd_context = mailbox->buf;
+	upd_context->primary_addr_path_mask = cpu_to_be64(qp_mask);
+	upd_context->qp_context.pri_path.vlan_control = vlan_control;
+	upd_context->qp_context.pri_path.vlan_index = work->vlan_ix;
+
+	spin_lock_irq(mlx4_tlock(dev));
+	list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
+		spin_unlock_irq(mlx4_tlock(dev));
+		if (qp->com.owner == work->slave) {
+			if (qp->com.from_state != RES_QP_HW ||
+			    !qp->sched_queue ||  /* no INIT2RTR trans yet */
+			    mlx4_is_qp_reserved(dev, qp->local_qpn) ||
+			    qp->qpc_flags & (1 << MLX4_RSS_QPC_FLAG_OFFSET)) {
+				spin_lock_irq(mlx4_tlock(dev));
+				continue;
+			}
+			port = (qp->sched_queue >> 6 & 1) + 1;
+			if (port != work->port) {
+				spin_lock_irq(mlx4_tlock(dev));
+				continue;
+			}
+			upd_context->qp_context.pri_path.sched_queue =
+				qp->sched_queue & 0xC7;
+			upd_context->qp_context.pri_path.sched_queue |=
+				((work->qos & 0x7) << 3);
+
+			err = mlx4_cmd(dev, mailbox->dma,
+				       qp->local_qpn & 0xffffff,
+				       0, MLX4_CMD_UPDATE_QP,
+				       MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
+			if (err) {
+				mlx4_info(dev, "UPDATE_QP failed for slave %d, "
+					  "port %d, qpn %d (%d)\n",
+					  work->slave, port, qp->local_qpn,
+					  err);
+				errors++;
+			}
+		}
+		spin_lock_irq(mlx4_tlock(dev));
+	}
+	spin_unlock_irq(mlx4_tlock(dev));
+	mlx4_free_cmd_mailbox(dev, mailbox);
+
+	if (errors)
+		mlx4_err(dev, "%d UPDATE_QP failures for slave %d, port %d\n",
+			 errors, work->slave, work->port);
+
+	/* unregister previous vlan_id if needed and we had no errors
+	 * while updating the QPs
+	 */
+	if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN && !errors &&
+	    NO_INDX != work->orig_vlan_ix)
+		__mlx4_unregister_vlan(&work->priv->dev, work->port,
+				       work->orig_vlan_ix);
+out:
+	kfree(work);
+	return;
+}
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index 8074a97..bb1c809 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -111,6 +111,7 @@ enum {
 	MLX4_CMD_INIT2INIT_QP	 = 0x2d,
 	MLX4_CMD_SUSPEND_QP	 = 0x32,
 	MLX4_CMD_UNSUSPEND_QP	 = 0x33,
+	MLX4_CMD_UPDATE_QP	 = 0x61,
 	/* special QP and management commands */
 	MLX4_CMD_CONF_SPECIAL_QP = 0x23,
 	MLX4_CMD_MAD_IFC	 = 0x24,
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index a51b013..52c23a8 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -157,7 +157,8 @@ enum {
 	MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN	= 1LL <<  4,
 	MLX4_DEV_CAP_FLAG2_TS			= 1LL <<  5,
 	MLX4_DEV_CAP_FLAG2_VLAN_CONTROL		= 1LL <<  6,
-	MLX4_DEV_CAP_FLAG2_FSM			= 1LL <<  7
+	MLX4_DEV_CAP_FLAG2_FSM			= 1LL <<  7,
+	MLX4_DEV_CAP_FLAG2_UPDATE_QP		= 1LL <<  8
 };
 
 enum {
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 352eec9..f43e32a 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -206,6 +206,40 @@ struct mlx4_qp_context {
 	u32			reserved5[10];
 };
 
+struct mlx4_update_qp_context {
+	__be64			qp_mask;
+	__be64			primary_addr_path_mask;
+	__be64			secondary_addr_path_mask;
+	u64			reserved1;
+	struct mlx4_qp_context	qp_context;
+	u64			reserved2[58];
+};
+
+enum {
+	MLX4_UPD_QP_MASK_PM_STATE	= 32,
+	MLX4_UPD_QP_MASK_VSD		= 33,
+};
+
+enum {
+	MLX4_UPD_QP_PATH_MASK_PKEY_INDEX		= 0 + 32,
+	MLX4_UPD_QP_PATH_MASK_FSM			= 1 + 32,
+	MLX4_UPD_QP_PATH_MASK_MAC_INDEX			= 2 + 32,
+	MLX4_UPD_QP_PATH_MASK_FVL			= 3 + 32,
+	MLX4_UPD_QP_PATH_MASK_CV			= 4 + 32,
+	MLX4_UPD_QP_PATH_MASK_VLAN_INDEX		= 5 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN		= 6 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED	= 7 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P		= 8 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED	= 9 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED	= 10 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P		= 11 + 32,
+	MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED	= 12 + 32,
+	MLX4_UPD_QP_PATH_MASK_FEUP			= 13 + 32,
+	MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE		= 14 + 32,
+	MLX4_UPD_QP_PATH_MASK_IF_COUNTER_INDEX		= 15 + 32,
+	MLX4_UPD_QP_PATH_MASK_FVL_RX			= 16 + 32,
+};
+
 enum { /* param3 */
 	MLX4_STRIP_VLAN = 1 << 30
 };
-- 
cgit v0.10.2


From 0a6eac24583848490e9a9c02daef5e33c997431f Mon Sep 17 00:00:00 2001
From: Rony Efraim <ronye@mellanox.com>
Date: Thu, 27 Jun 2013 19:05:22 +0300
Subject: net/mlx4_core: Add HW enforcement to VF link state

When the firmware supports the UPDATE_QP command, if the VF link is disabled,
block all QPs opened by the VF, by programming the UPDATE_QP command to drop
all RX & TX traffic to/from these QPs. Operates only in VST mode.

Signed-off-by: Rony Efraim <ronye@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 7b92789..707a7d0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -1521,6 +1521,10 @@ out:
 	return ret;
 }
 
+static int calculate_transition(u16 oper_vlan, u16 admin_vlan)
+{
+	return (2 * (oper_vlan == MLX4_VGT) + (admin_vlan == MLX4_VGT));
+}
 
 int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
 					    int slave, int port)
@@ -1528,16 +1532,37 @@ int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
 	struct mlx4_vport_oper_state *vp_oper;
 	struct mlx4_vport_state *vp_admin;
 	struct mlx4_vf_immed_vlan_work *work;
+	struct mlx4_dev *dev = &(priv->dev);
 	int err;
 	int admin_vlan_ix = NO_INDX;
+	enum mlx4_vlan_transition vlan_trans;
 
 	vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
 	vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
 
 	if (vp_oper->state.default_vlan == vp_admin->default_vlan &&
-	    vp_oper->state.default_qos == vp_admin->default_qos)
+	    vp_oper->state.default_qos == vp_admin->default_qos &&
+	    vp_oper->state.link_state == vp_admin->link_state)
 		return 0;
 
+	vlan_trans = calculate_transition(vp_oper->state.default_vlan,
+					  vp_admin->default_vlan);
+
+	if (!(priv->mfunc.master.slave_state[slave].active &&
+	      dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP &&
+	      vlan_trans == MLX4_VLAN_TRANSITION_VST_VST)) {
+		/* even if the UPDATE_QP command isn't supported, we still want
+		 * to set this VF link according to the admin directive
+		 */
+		vp_oper->state.link_state = vp_admin->link_state;
+		return -1;
+	}
+
+	mlx4_dbg(dev, "updating immediately admin params slave %d port %d\n",
+		 slave, port);
+	mlx4_dbg(dev, "vlan %d QoS %d link down %d\n", vp_admin->default_vlan,
+		 vp_admin->default_qos, vp_admin->link_state);
+
 	work = kzalloc(sizeof(*work), GFP_KERNEL);
 	if (!work)
 		return -ENOMEM;
@@ -1572,6 +1597,10 @@ int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
 
 	vp_oper->state.default_vlan = vp_admin->default_vlan;
 	vp_oper->state.default_qos = vp_admin->default_qos;
+	vp_oper->state.link_state = vp_admin->link_state;
+
+	if (vp_admin->link_state == IFLA_VF_LINK_STATE_DISABLE)
+		work->flags |= MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE;
 
 	/* iterate over QPs owned by this slave, using UPDATE_QP */
 	work->port = port;
@@ -2201,10 +2230,6 @@ int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac)
 }
 EXPORT_SYMBOL_GPL(mlx4_set_vf_mac);
 
-static int calculate_transition(u16 oper_vlan, u16 admin_vlan)
-{
-	return (2 * (oper_vlan == MLX4_VGT) + (admin_vlan == MLX4_VGT));
-}
 
 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 {
@@ -2212,7 +2237,6 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 	struct mlx4_vport_oper_state *vf_oper;
 	struct mlx4_vport_state *vf_admin;
 	int slave;
-	enum mlx4_vlan_transition vlan_trans;
 
 	if ((!mlx4_is_master(dev)) ||
 	    !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_VLAN_CONTROL))
@@ -2234,16 +2258,10 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 		vf_admin->default_vlan = vlan;
 	vf_admin->default_qos = qos;
 
-	vlan_trans = calculate_transition(vf_oper->state.default_vlan,
-					  vf_admin->default_vlan);
-
-	if (priv->mfunc.master.slave_state[slave].active &&
-	    dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP &&
-	    vlan_trans == MLX4_VLAN_TRANSITION_VST_VST) {
-		mlx4_info(dev, "updating vf %d port %d config params immediately\n",
+	if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
+		mlx4_info(dev,
+			  "updating vf %d port %d config will take effect on next VF restart\n",
 			  vf, port);
-		mlx4_master_immediate_activate_vlan_qos(priv, slave, port);
-	}
 	return 0;
 }
 EXPORT_SYMBOL_GPL(mlx4_set_vf_vlan);
@@ -2307,7 +2325,6 @@ int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_stat
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_vport_state *s_info;
-	struct mlx4_vport_oper_state *vp_oper;
 	int slave;
 	u8 link_stat_event;
 
@@ -2337,14 +2354,16 @@ int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_stat
 			  link_state, slave, port);
 		return -EINVAL;
 	};
-	/* update the admin & oper state on the link state */
 	s_info = &priv->mfunc.master.vf_admin[slave].vport[port];
-	vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
 	s_info->link_state = link_state;
-	vp_oper->state.link_state = link_state;
 
 	/* send event */
 	mlx4_gen_port_state_change_eqe(dev, slave, port, link_stat_event);
+
+	if (mlx4_master_immediate_activate_vlan_qos(priv, slave, port))
+		mlx4_dbg(dev,
+			 "updating vf %d port %d no link state HW enforcment\n",
+			 vf, port);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(mlx4_set_vf_link_state);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 5abcb65..17d9277 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -574,6 +574,7 @@ struct mlx4_cmd {
 enum {
 	MLX4_VF_IMMED_VLAN_FLAG_VLAN = 1 << 0,
 	MLX4_VF_IMMED_VLAN_FLAG_QOS = 1 << 1,
+	MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE = 1 << 2,
 };
 struct mlx4_vf_immed_vlan_work {
 	struct work_struct	work;
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 46323a2..f984a89 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -384,7 +384,17 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
 
 		/* force strip vlan by clear vsd */
 		qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN);
-		if (0 != vp_oper->state.default_vlan) {
+
+		if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE &&
+		    dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) {
+			qpc->pri_path.vlan_control =
+				MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
+				MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
+				MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
+				MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
+				MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
+				MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
+		} else if (0 != vp_oper->state.default_vlan) {
 			qpc->pri_path.vlan_control =
 				MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
 				MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
@@ -4002,8 +4012,14 @@ void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
 		goto out;
-
-	if (!work->vlan_id)
+	if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE) /* block all */
+		vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
+			MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED |
+			MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED |
+			MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED |
+			MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED |
+			MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
+	else if (!work->vlan_id)
 		vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED |
 			MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED;
 	else
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index f43e32a..262deac 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -152,6 +152,8 @@ enum { /* fl */
 };
 enum { /* vlan_control */
 	MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED	= 1 << 6,
+	MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED	= 1 << 5, /* 802.1p priority tag */
+	MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED	= 1 << 4,
 	MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED	= 1 << 2,
 	MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED	= 1 << 1, /* 802.1p priority tag */
 	MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED	= 1 << 0
-- 
cgit v0.10.2


From ef0cc4b1d296ce041e3b24d103177dd70642740c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 29 Jun 2013 19:23:13 +0200
Subject: alx: treat flow control correctly in alx_set_pauseparam()

Even when alx_setup_speed_duplex() is called, we still
need to call alx_cfg_mac_flowcontrol() and set hw->flowctrl
if flow control changed.

This was a bug I accidentally introduced while simplifying
the original driver.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/alx/ethtool.c b/drivers/net/ethernet/atheros/alx/ethtool.c
index 6fa2aec..50a91d0 100644
--- a/drivers/net/ethernet/atheros/alx/ethtool.c
+++ b/drivers/net/ethernet/atheros/alx/ethtool.c
@@ -187,7 +187,8 @@ static int alx_set_pauseparam(struct net_device *netdev,
 
 	if (reconfig_phy) {
 		err = alx_setup_speed_duplex(hw, hw->adv_cfg, fc);
-		return err;
+		if (err)
+			return err;
 	}
 
 	/* flow control on mac */
-- 
cgit v0.10.2


From 17fdd35268f3856702dae5c3c0d8f756ec2c6d2d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 29 Jun 2013 19:23:14 +0200
Subject: alx: fix 100mbit/half duplex speed translation

100mbit half duplex is ADVERTISED_100baseT_Half, not
ADVERTISED_10baseT_Half.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/alx/hw.c b/drivers/net/ethernet/atheros/alx/hw.c
index 220a16a..dc71cfb 100644
--- a/drivers/net/ethernet/atheros/alx/hw.c
+++ b/drivers/net/ethernet/atheros/alx/hw.c
@@ -1134,7 +1134,7 @@ static inline u32 alx_speed_to_ethadv(int speed)
 	case SPEED_100 + DUPLEX_FULL:
 		return ADVERTISED_100baseT_Full;
 	case SPEED_100 + DUPLEX_HALF:
-		return ADVERTISED_10baseT_Half;
+		return ADVERTISED_100baseT_Half;
 	case SPEED_10 + DUPLEX_FULL:
 		return ADVERTISED_10baseT_Full;
 	case SPEED_10 + DUPLEX_HALF:
-- 
cgit v0.10.2


From c43861d35a73cfc86ae0506b60e73852849bca6a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 29 Jun 2013 19:23:15 +0200
Subject: alx: remove NET_CORE Kconfig select

That select doesn't make any sense, remove it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/Kconfig b/drivers/net/ethernet/atheros/Kconfig
index 39e8d6c..58ad37c 100644
--- a/drivers/net/ethernet/atheros/Kconfig
+++ b/drivers/net/ethernet/atheros/Kconfig
@@ -67,7 +67,6 @@ config ALX
 	tristate "Qualcomm Atheros AR816x/AR817x support"
 	depends on PCI
 	select CRC32
-	select NET_CORE
 	select MDIO
 	help
 	  This driver supports the Qualcomm Atheros L1F ethernet adapter,
-- 
cgit v0.10.2


From 4a134c39db2d9d6f31c55e7c3773fc33189c9320 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 29 Jun 2013 19:23:16 +0200
Subject: alx: make sizes unsigned

The ring sizes should be unsigned, pointed out by Ben Hutchings.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/alx/alx.h b/drivers/net/ethernet/atheros/alx/alx.h
index 50b3ae2..d71103d 100644
--- a/drivers/net/ethernet/atheros/alx/alx.h
+++ b/drivers/net/ethernet/atheros/alx/alx.h
@@ -85,16 +85,16 @@ struct alx_priv {
 	struct {
 		dma_addr_t dma;
 		void *virt;
-		int size;
+		unsigned int size;
 	} descmem;
 
 	/* protect int_mask updates */
 	spinlock_t irq_lock;
 	u32 int_mask;
 
-	int tx_ringsz;
-	int rx_ringsz;
-	int rxbuf_size;
+	unsigned int tx_ringsz;
+	unsigned int rx_ringsz;
+	unsigned int rxbuf_size;
 
 	struct napi_struct napi;
 	struct alx_tx_queue txq;
-- 
cgit v0.10.2


From a5b87cc9e0538bf6680d431e0076d778e5bae38e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 29 Jun 2013 19:23:17 +0200
Subject: alx: separate link speed/duplex fields

As suggested by Ben Hutchings, use separate fields to track
current link speed and duplex setting.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/alx/ethtool.c b/drivers/net/ethernet/atheros/alx/ethtool.c
index 50a91d0..5e19e08 100644
--- a/drivers/net/ethernet/atheros/alx/ethtool.c
+++ b/drivers/net/ethernet/atheros/alx/ethtool.c
@@ -85,14 +85,8 @@ static int alx_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 		}
 	}
 
-	if (hw->link_speed != SPEED_UNKNOWN) {
-		ethtool_cmd_speed_set(ecmd,
-				      hw->link_speed - hw->link_speed % 10);
-		ecmd->duplex = hw->link_speed % 10;
-	} else {
-		ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
-		ecmd->duplex = DUPLEX_UNKNOWN;
-	}
+	ethtool_cmd_speed_set(ecmd, hw->link_speed);
+	ecmd->duplex = hw->duplex;
 
 	return 0;
 }
@@ -110,24 +104,11 @@ static int alx_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 			return -EINVAL;
 		adv_cfg = ecmd->advertising | ADVERTISED_Autoneg;
 	} else {
-		int speed = ethtool_cmd_speed(ecmd);
-
-		switch (speed + ecmd->duplex) {
-		case SPEED_10 + DUPLEX_HALF:
-			adv_cfg = ADVERTISED_10baseT_Half;
-			break;
-		case SPEED_10 + DUPLEX_FULL:
-			adv_cfg = ADVERTISED_10baseT_Full;
-			break;
-		case SPEED_100 + DUPLEX_HALF:
-			adv_cfg = ADVERTISED_100baseT_Half;
-			break;
-		case SPEED_100 + DUPLEX_FULL:
-			adv_cfg = ADVERTISED_100baseT_Full;
-			break;
-		default:
+		adv_cfg = alx_speed_to_ethadv(ethtool_cmd_speed(ecmd),
+					      ecmd->duplex);
+
+		if (!adv_cfg || adv_cfg == ADVERTISED_1000baseT_Full)
 			return -EINVAL;
-		}
 	}
 
 	hw->adv_cfg = adv_cfg;
diff --git a/drivers/net/ethernet/atheros/alx/hw.c b/drivers/net/ethernet/atheros/alx/hw.c
index dc71cfb..aed48a7 100644
--- a/drivers/net/ethernet/atheros/alx/hw.c
+++ b/drivers/net/ethernet/atheros/alx/hw.c
@@ -624,12 +624,12 @@ void alx_start_mac(struct alx_hw *hw)
 	alx_write_mem32(hw, ALX_TXQ0, txq | ALX_TXQ0_EN);
 
 	mac = hw->rx_ctrl;
-	if (hw->link_speed % 10 == DUPLEX_FULL)
+	if (hw->duplex == DUPLEX_FULL)
 		mac |= ALX_MAC_CTRL_FULLD;
 	else
 		mac &= ~ALX_MAC_CTRL_FULLD;
 	ALX_SET_FIELD(mac, ALX_MAC_CTRL_SPEED,
-		      hw->link_speed >= SPEED_1000 ? ALX_MAC_CTRL_SPEED_1000 :
+		      hw->link_speed == SPEED_1000 ? ALX_MAC_CTRL_SPEED_1000 :
 						     ALX_MAC_CTRL_SPEED_10_100);
 	mac |= ALX_MAC_CTRL_TX_EN | ALX_MAC_CTRL_RX_EN;
 	hw->rx_ctrl = mac;
@@ -790,28 +790,22 @@ void alx_post_phy_link(struct alx_hw *hw)
 	u16 phy_val, len, agc;
 	u8 revid = alx_hw_revision(hw);
 	bool adj_th = revid == ALX_REV_B0;
-	int speed;
-
-	if (hw->link_speed == SPEED_UNKNOWN)
-		speed = SPEED_UNKNOWN;
-	else
-		speed = hw->link_speed - hw->link_speed % 10;
 
 	if (revid != ALX_REV_B0 && !alx_is_rev_a(revid))
 		return;
 
 	/* 1000BT/AZ, wrong cable length */
-	if (speed != SPEED_UNKNOWN) {
+	if (hw->link_speed != SPEED_UNKNOWN) {
 		alx_read_phy_ext(hw, ALX_MIIEXT_PCS, ALX_MIIEXT_CLDCTRL6,
 				 &phy_val);
 		len = ALX_GET_FIELD(phy_val, ALX_CLDCTRL6_CAB_LEN);
 		alx_read_phy_dbg(hw, ALX_MIIDBG_AGC, &phy_val);
 		agc = ALX_GET_FIELD(phy_val, ALX_AGC_2_VGA);
 
-		if ((speed == SPEED_1000 &&
+		if ((hw->link_speed == SPEED_1000 &&
 		     (len > ALX_CLDCTRL6_CAB_LEN_SHORT1G ||
 		      (len == 0 && agc > ALX_AGC_LONG1G_LIMT))) ||
-		    (speed == SPEED_100 &&
+		    (hw->link_speed == SPEED_100 &&
 		     (len > ALX_CLDCTRL6_CAB_LEN_SHORT100M ||
 		      (len == 0 && agc > ALX_AGC_LONG100M_LIMT)))) {
 			alx_write_phy_dbg(hw, ALX_MIIDBG_AZ_ANADECT,
@@ -831,10 +825,10 @@ void alx_post_phy_link(struct alx_hw *hw)
 
 		/* threshold adjust */
 		if (adj_th && hw->lnk_patch) {
-			if (speed == SPEED_100) {
+			if (hw->link_speed == SPEED_100) {
 				alx_write_phy_dbg(hw, ALX_MIIDBG_MSE16DB,
 						  ALX_MSE16DB_UP);
-			} else if (speed == SPEED_1000) {
+			} else if (hw->link_speed == SPEED_1000) {
 				/*
 				 * Giga link threshold, raise the tolerance of
 				 * noise 50%
@@ -869,7 +863,7 @@ void alx_post_phy_link(struct alx_hw *hw)
  *    1. phy link must be established before calling this function
  *    2. wol option (pattern,magic,link,etc.) is configed before call it.
  */
-int alx_pre_suspend(struct alx_hw *hw, int speed)
+int alx_pre_suspend(struct alx_hw *hw, int speed, u8 duplex)
 {
 	u32 master, mac, phy, val;
 	int err = 0;
@@ -897,9 +891,9 @@ int alx_pre_suspend(struct alx_hw *hw, int speed)
 			mac |= ALX_MAC_CTRL_RX_EN | ALX_MAC_CTRL_BRD_EN;
 		if (hw->sleep_ctrl & ALX_SLEEP_CIFS)
 			mac |= ALX_MAC_CTRL_TX_EN;
-		if (speed % 10 == DUPLEX_FULL)
+		if (duplex == DUPLEX_FULL)
 			mac |= ALX_MAC_CTRL_FULLD;
-		if (speed >= SPEED_1000)
+		if (speed == SPEED_1000)
 			ALX_SET_FIELD(mac, ALX_MAC_CTRL_SPEED,
 				      ALX_MAC_CTRL_SPEED_1000);
 		phy |= ALX_PHY_CTRL_DSPRST_OUT;
@@ -938,7 +932,7 @@ bool alx_phy_configured(struct alx_hw *hw)
 	return cfg == hw_cfg;
 }
 
-int alx_get_phy_link(struct alx_hw *hw, int *speed)
+int alx_read_phy_link(struct alx_hw *hw)
 {
 	struct pci_dev *pdev = hw->pdev;
 	u16 bmsr, giga;
@@ -953,7 +947,8 @@ int alx_get_phy_link(struct alx_hw *hw, int *speed)
 		return err;
 
 	if (!(bmsr & BMSR_LSTATUS)) {
-		*speed = SPEED_UNKNOWN;
+		hw->link_speed = SPEED_UNKNOWN;
+		hw->duplex = DUPLEX_UNKNOWN;
 		return 0;
 	}
 
@@ -967,20 +962,20 @@ int alx_get_phy_link(struct alx_hw *hw, int *speed)
 
 	switch (giga & ALX_GIGA_PSSR_SPEED) {
 	case ALX_GIGA_PSSR_1000MBS:
-		*speed = SPEED_1000;
+		hw->link_speed = SPEED_1000;
 		break;
 	case ALX_GIGA_PSSR_100MBS:
-		*speed = SPEED_100;
+		hw->link_speed = SPEED_100;
 		break;
 	case ALX_GIGA_PSSR_10MBS:
-		*speed = SPEED_10;
+		hw->link_speed = SPEED_10;
 		break;
 	default:
 		goto wrong_speed;
 	}
 
-	*speed += (giga & ALX_GIGA_PSSR_DPLX) ? DUPLEX_FULL : DUPLEX_HALF;
-	return 1;
+	hw->duplex = (giga & ALX_GIGA_PSSR_DPLX) ? DUPLEX_FULL : DUPLEX_HALF;
+	return 0;
 
 wrong_speed:
 	dev_err(&pdev->dev, "invalid PHY speed/duplex: 0x%x\n", giga);
@@ -1126,81 +1121,67 @@ void alx_configure_basic(struct alx_hw *hw)
 	alx_write_mem32(hw, ALX_WRR, val);
 }
 
-static inline u32 alx_speed_to_ethadv(int speed)
-{
-	switch (speed) {
-	case SPEED_1000 + DUPLEX_FULL:
-		return ADVERTISED_1000baseT_Full;
-	case SPEED_100 + DUPLEX_FULL:
-		return ADVERTISED_100baseT_Full;
-	case SPEED_100 + DUPLEX_HALF:
-		return ADVERTISED_100baseT_Half;
-	case SPEED_10 + DUPLEX_FULL:
-		return ADVERTISED_10baseT_Full;
-	case SPEED_10 + DUPLEX_HALF:
-		return ADVERTISED_10baseT_Half;
-	default:
-		return 0;
-	}
-}
-
-int alx_select_powersaving_speed(struct alx_hw *hw, int *speed)
+int alx_select_powersaving_speed(struct alx_hw *hw, int *speed, u8 *duplex)
 {
-	int i, err, spd;
+	int i, err;
 	u16 lpa;
 
-	err = alx_get_phy_link(hw, &spd);
-	if (err < 0)
+	err = alx_read_phy_link(hw);
+	if (err)
 		return err;
 
-	if (spd == SPEED_UNKNOWN)
+	if (hw->link_speed == SPEED_UNKNOWN) {
+		*speed = SPEED_UNKNOWN;
+		*duplex = DUPLEX_UNKNOWN;
 		return 0;
+	}
 
 	err = alx_read_phy_reg(hw, MII_LPA, &lpa);
 	if (err)
 		return err;
 
 	if (!(lpa & LPA_LPACK)) {
-		*speed = spd;
+		*speed = hw->link_speed;
 		return 0;
 	}
 
-	if (lpa & LPA_10FULL)
-		*speed = SPEED_10 + DUPLEX_FULL;
-	else if (lpa & LPA_10HALF)
-		*speed = SPEED_10 + DUPLEX_HALF;
-	else if (lpa & LPA_100FULL)
-		*speed = SPEED_100 + DUPLEX_FULL;
-	else
-		*speed = SPEED_100 + DUPLEX_HALF;
-
-	if (*speed != spd) {
-		err = alx_write_phy_reg(hw, ALX_MII_IER, 0);
-		if (err)
-			return err;
-		err = alx_setup_speed_duplex(hw,
-					     alx_speed_to_ethadv(*speed) |
-					     ADVERTISED_Autoneg,
-					     ALX_FC_ANEG | ALX_FC_RX |
-					     ALX_FC_TX);
-		if (err)
-			return err;
+	if (lpa & LPA_10FULL) {
+		*speed = SPEED_10;
+		*duplex = DUPLEX_FULL;
+	} else if (lpa & LPA_10HALF) {
+		*speed = SPEED_10;
+		*duplex = DUPLEX_HALF;
+	} else if (lpa & LPA_100FULL) {
+		*speed = SPEED_100;
+		*duplex = DUPLEX_FULL;
+	} else {
+		*speed = SPEED_100;
+		*duplex = DUPLEX_HALF;
+	}
 
-		/* wait for linkup */
-		for (i = 0; i < ALX_MAX_SETUP_LNK_CYCLE; i++) {
-			int speed2;
+	if (*speed == hw->link_speed && *duplex == hw->duplex)
+		return 0;
+	err = alx_write_phy_reg(hw, ALX_MII_IER, 0);
+	if (err)
+		return err;
+	err = alx_setup_speed_duplex(hw, alx_speed_to_ethadv(*speed, *duplex) |
+					 ADVERTISED_Autoneg, ALX_FC_ANEG |
+					 ALX_FC_RX | ALX_FC_TX);
+	if (err)
+		return err;
 
-			msleep(100);
+	/* wait for linkup */
+	for (i = 0; i < ALX_MAX_SETUP_LNK_CYCLE; i++) {
+		msleep(100);
 
-			err = alx_get_phy_link(hw, &speed2);
-			if (err < 0)
-				return err;
-			if (speed2 != SPEED_UNKNOWN)
-				break;
-		}
-		if (i == ALX_MAX_SETUP_LNK_CYCLE)
-			return -ETIMEDOUT;
+		err = alx_read_phy_link(hw);
+		if (err < 0)
+			return err;
+		if (hw->link_speed != SPEED_UNKNOWN)
+			break;
 	}
+	if (i == ALX_MAX_SETUP_LNK_CYCLE)
+		return -ETIMEDOUT;
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/atheros/alx/hw.h b/drivers/net/ethernet/atheros/alx/hw.h
index 65e723d..a60e35c 100644
--- a/drivers/net/ethernet/atheros/alx/hw.h
+++ b/drivers/net/ethernet/atheros/alx/hw.h
@@ -412,10 +412,11 @@ struct alx_hw {
 	u32 smb_timer;
 	/* SPEED_* + DUPLEX_*, SPEED_UNKNOWN if link is down */
 	int link_speed;
+	u8 duplex;
 
 	/* auto-neg advertisement or force mode config */
-	u32 adv_cfg;
 	u8 flowctrl;
+	u32 adv_cfg;
 
 	u32 sleep_ctrl;
 
@@ -478,12 +479,12 @@ void alx_reset_pcie(struct alx_hw *hw);
 void alx_enable_aspm(struct alx_hw *hw, bool l0s_en, bool l1_en);
 int alx_setup_speed_duplex(struct alx_hw *hw, u32 ethadv, u8 flowctrl);
 void alx_post_phy_link(struct alx_hw *hw);
-int alx_pre_suspend(struct alx_hw *hw, int speed);
+int alx_pre_suspend(struct alx_hw *hw, int speed, u8 duplex);
 int alx_read_phy_reg(struct alx_hw *hw, u16 reg, u16 *phy_data);
 int alx_write_phy_reg(struct alx_hw *hw, u16 reg, u16 phy_data);
 int alx_read_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 *pdata);
 int alx_write_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 data);
-int alx_get_phy_link(struct alx_hw *hw, int *speed);
+int alx_read_phy_link(struct alx_hw *hw);
 int alx_clear_phy_intr(struct alx_hw *hw);
 int alx_config_wol(struct alx_hw *hw);
 void alx_cfg_mac_flowcontrol(struct alx_hw *hw, u8 fc);
@@ -493,7 +494,22 @@ void alx_set_macaddr(struct alx_hw *hw, const u8 *addr);
 bool alx_phy_configured(struct alx_hw *hw);
 void alx_configure_basic(struct alx_hw *hw);
 void alx_disable_rss(struct alx_hw *hw);
-int alx_select_powersaving_speed(struct alx_hw *hw, int *speed);
+int alx_select_powersaving_speed(struct alx_hw *hw, int *speed, u8 *duplex);
 bool alx_get_phy_info(struct alx_hw *hw);
 
+static inline u32 alx_speed_to_ethadv(int speed, u8 duplex)
+{
+	if (speed == SPEED_1000 && duplex == DUPLEX_FULL)
+		return ADVERTISED_1000baseT_Full;
+	if (speed == SPEED_100 && duplex == DUPLEX_FULL)
+		return ADVERTISED_100baseT_Full;
+	if (speed == SPEED_100 && duplex== DUPLEX_HALF)
+		return ADVERTISED_100baseT_Half;
+	if (speed == SPEED_10 && duplex == DUPLEX_FULL)
+		return ADVERTISED_10baseT_Full;
+	if (speed == SPEED_10 && duplex == DUPLEX_HALF)
+		return ADVERTISED_10baseT_Half;
+	return 0;
+}
+
 #endif
diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index 418de8b..148b4b9 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -712,6 +712,7 @@ static int alx_init_sw(struct alx_priv *alx)
 	hw->dma_chnl = hw->max_dma_chnl;
 	hw->ith_tpd = alx->tx_ringsz / 3;
 	hw->link_speed = SPEED_UNKNOWN;
+	hw->duplex = DUPLEX_UNKNOWN;
 	hw->adv_cfg = ADVERTISED_Autoneg |
 		      ADVERTISED_10baseT_Half |
 		      ADVERTISED_10baseT_Full |
@@ -758,6 +759,7 @@ static void alx_halt(struct alx_priv *alx)
 
 	alx_netif_stop(alx);
 	hw->link_speed = SPEED_UNKNOWN;
+	hw->duplex = DUPLEX_UNKNOWN;
 
 	alx_reset_mac(hw);
 
@@ -869,18 +871,18 @@ static void __alx_stop(struct alx_priv *alx)
 	alx_free_rings(alx);
 }
 
-static const char *alx_speed_desc(u16 speed)
+static const char *alx_speed_desc(struct alx_hw *hw)
 {
-	switch (speed) {
-	case SPEED_1000 + DUPLEX_FULL:
+	switch (alx_speed_to_ethadv(hw->link_speed, hw->duplex)) {
+	case ADVERTISED_1000baseT_Full:
 		return "1 Gbps Full";
-	case SPEED_100 + DUPLEX_FULL:
+	case ADVERTISED_100baseT_Full:
 		return "100 Mbps Full";
-	case SPEED_100 + DUPLEX_HALF:
+	case ADVERTISED_100baseT_Half:
 		return "100 Mbps Half";
-	case SPEED_10 + DUPLEX_FULL:
+	case ADVERTISED_10baseT_Full:
 		return "10 Mbps Full";
-	case SPEED_10 + DUPLEX_HALF:
+	case ADVERTISED_10baseT_Half:
 		return "10 Mbps Half";
 	default:
 		return "Unknown speed";
@@ -891,7 +893,8 @@ static void alx_check_link(struct alx_priv *alx)
 {
 	struct alx_hw *hw = &alx->hw;
 	unsigned long flags;
-	int speed, old_speed;
+	int old_speed;
+	u8 old_duplex;
 	int err;
 
 	/* clear PHY internal interrupt status, otherwise the main
@@ -899,7 +902,9 @@ static void alx_check_link(struct alx_priv *alx)
 	 */
 	alx_clear_phy_intr(hw);
 
-	err = alx_get_phy_link(hw, &speed);
+	old_speed = hw->link_speed;
+	old_duplex = hw->duplex;
+	err = alx_read_phy_link(hw);
 	if (err < 0)
 		goto reset;
 
@@ -908,15 +913,12 @@ static void alx_check_link(struct alx_priv *alx)
 	alx_write_mem32(hw, ALX_IMR, alx->int_mask);
 	spin_unlock_irqrestore(&alx->irq_lock, flags);
 
-	old_speed = hw->link_speed;
-
-	if (old_speed == speed)
+	if (old_speed == hw->link_speed)
 		return;
-	hw->link_speed = speed;
 
-	if (speed != SPEED_UNKNOWN) {
+	if (hw->link_speed != SPEED_UNKNOWN) {
 		netif_info(alx, link, alx->dev,
-			   "NIC Up: %s\n", alx_speed_desc(speed));
+			   "NIC Up: %s\n", alx_speed_desc(hw));
 		alx_post_phy_link(hw);
 		alx_enable_aspm(hw, true, true);
 		alx_start_mac(hw);
@@ -965,6 +967,7 @@ static int __alx_shutdown(struct pci_dev *pdev, bool *wol_en)
 	struct net_device *netdev = alx->dev;
 	struct alx_hw *hw = &alx->hw;
 	int err, speed;
+	u8 duplex;
 
 	netif_device_detach(netdev);
 
@@ -977,13 +980,13 @@ static int __alx_shutdown(struct pci_dev *pdev, bool *wol_en)
 		return err;
 #endif
 
-	err = alx_select_powersaving_speed(hw, &speed);
+	err = alx_select_powersaving_speed(hw, &speed, &duplex);
 	if (err)
 		return err;
 	err = alx_clear_phy_intr(hw);
 	if (err)
 		return err;
-	err = alx_pre_suspend(hw, speed);
+	err = alx_pre_suspend(hw, speed, duplex);
 	if (err)
 		return err;
 	err = alx_config_wol(hw);
-- 
cgit v0.10.2


From 46ab9b347d677976b2b4072837cb4065839c0b80 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 29 Jun 2013 19:23:18 +0200
Subject: alx: fix MAC address alignment problem

In two places, parts of MAC addresses are used as u32/u16
values. This can cause alignment problems, use put_unaligned
and get_unaligned to fix this.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/alx/hw.c b/drivers/net/ethernet/atheros/alx/hw.c
index aed48a7..ea99e5d 100644
--- a/drivers/net/ethernet/atheros/alx/hw.c
+++ b/drivers/net/ethernet/atheros/alx/hw.c
@@ -282,8 +282,8 @@ static bool alx_read_macaddr(struct alx_hw *hw, u8 *addr)
 	mac1 = alx_read_mem32(hw, ALX_STAD1);
 
 	/* addr should be big-endian */
-	*(__be32 *)(addr + 2) = cpu_to_be32(mac0);
-	*(__be16 *)addr = cpu_to_be16(mac1);
+	put_unaligned(cpu_to_be32(mac0), (__be32 *)(addr + 2));
+	put_unaligned(cpu_to_be16(mac1), (__be16 *)addr);
 
 	return is_valid_ether_addr(addr);
 }
@@ -326,9 +326,9 @@ void alx_set_macaddr(struct alx_hw *hw, const u8 *addr)
 	u32 val;
 
 	/* for example: 00-0B-6A-F6-00-DC * STAD0=6AF600DC, STAD1=000B */
-	val = be32_to_cpu(*(__be32 *)(addr + 2));
+	val = be32_to_cpu(get_unaligned((__be32 *)(addr + 2)));
 	alx_write_mem32(hw, ALX_STAD0, val);
-	val = be16_to_cpu(*(__be16 *)addr);
+	val = be16_to_cpu(get_unaligned((__be16 *)addr));
 	alx_write_mem32(hw, ALX_STAD1, val);
 }
 
-- 
cgit v0.10.2


From 7ec5689461989fd80f1cf82ae084f5d50a5e63ee Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 29 Jun 2013 19:23:19 +0200
Subject: alx: fix ethtool support code

A number of places treated features wrongly, listing not-supported
features instead of supported ones. Also, the get_drvinfo ethtool
callback isn't needed, and alx_get_pauseparam can be simplified.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/alx/ethtool.c b/drivers/net/ethernet/atheros/alx/ethtool.c
index 5e19e08..9261006 100644
--- a/drivers/net/ethernet/atheros/alx/ethtool.c
+++ b/drivers/net/ethernet/atheros/alx/ethtool.c
@@ -46,21 +46,37 @@
 #include "reg.h"
 #include "hw.h"
 
+static u32 alx_get_supported_speeds(struct alx_hw *hw)
+{
+	u32 supported = SUPPORTED_10baseT_Half |
+			SUPPORTED_10baseT_Full |
+			SUPPORTED_100baseT_Half |
+			SUPPORTED_100baseT_Full;
+
+	if (alx_hw_giga(hw))
+		supported |= SUPPORTED_1000baseT_Full;
+
+	BUILD_BUG_ON(SUPPORTED_10baseT_Half != ADVERTISED_10baseT_Half);
+	BUILD_BUG_ON(SUPPORTED_10baseT_Full != ADVERTISED_10baseT_Full);
+	BUILD_BUG_ON(SUPPORTED_100baseT_Half != ADVERTISED_100baseT_Half);
+	BUILD_BUG_ON(SUPPORTED_100baseT_Full != ADVERTISED_100baseT_Full);
+	BUILD_BUG_ON(SUPPORTED_1000baseT_Full != ADVERTISED_1000baseT_Full);
+
+	return supported;
+}
 
 static int alx_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 {
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;
 
-	ecmd->supported = SUPPORTED_10baseT_Half |
-			  SUPPORTED_10baseT_Full |
-			  SUPPORTED_100baseT_Half |
-			  SUPPORTED_100baseT_Full |
-			  SUPPORTED_Autoneg |
+	ecmd->supported = SUPPORTED_Autoneg |
 			  SUPPORTED_TP |
-			  SUPPORTED_Pause;
+			  SUPPORTED_Pause |
+			  SUPPORTED_Asym_Pause;
 	if (alx_hw_giga(hw))
 		ecmd->supported |= SUPPORTED_1000baseT_Full;
+	ecmd->supported |= alx_get_supported_speeds(hw);
 
 	ecmd->advertising = ADVERTISED_TP;
 	if (hw->adv_cfg & ADVERTISED_Autoneg)
@@ -68,6 +84,7 @@ static int alx_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 
 	ecmd->port = PORT_TP;
 	ecmd->phy_address = 0;
+
 	if (hw->adv_cfg & ADVERTISED_Autoneg)
 		ecmd->autoneg = AUTONEG_ENABLE;
 	else
@@ -100,7 +117,7 @@ static int alx_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 	ASSERT_RTNL();
 
 	if (ecmd->autoneg == AUTONEG_ENABLE) {
-		if (ecmd->advertising & ADVERTISED_1000baseT_Half)
+		if (ecmd->advertising & ~alx_get_supported_speeds(hw))
 			return -EINVAL;
 		adv_cfg = ecmd->advertising | ADVERTISED_Autoneg;
 	} else {
@@ -121,21 +138,10 @@ static void alx_get_pauseparam(struct net_device *netdev,
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;
 
-	if (hw->flowctrl & ALX_FC_ANEG &&
-	    hw->adv_cfg & ADVERTISED_Autoneg)
-		pause->autoneg = AUTONEG_ENABLE;
-	else
-		pause->autoneg = AUTONEG_DISABLE;
-
-	if (hw->flowctrl & ALX_FC_TX)
-		pause->tx_pause = 1;
-	else
-		pause->tx_pause = 0;
-
-	if (hw->flowctrl & ALX_FC_RX)
-		pause->rx_pause = 1;
-	else
-		pause->rx_pause = 0;
+	pause->autoneg = !!(hw->flowctrl & ALX_FC_ANEG &&
+			    hw->adv_cfg & ADVERTISED_Autoneg);
+	pause->tx_pause = !!(hw->flowctrl & ALX_FC_TX);
+	pause->rx_pause = !!(hw->flowctrl & ALX_FC_RX);
 }
 
 
@@ -214,8 +220,7 @@ static int alx_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 	struct alx_priv *alx = netdev_priv(netdev);
 	struct alx_hw *hw = &alx->hw;
 
-	if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
-			    WAKE_UCAST | WAKE_BCAST | WAKE_MCAST))
+	if (wol->wolopts & ~(WAKE_MAGIC | WAKE_PHY))
 		return -EOPNOTSUPP;
 
 	hw->sleep_ctrl = 0;
@@ -230,22 +235,11 @@ static int alx_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 	return 0;
 }
 
-static void alx_get_drvinfo(struct net_device *netdev,
-			    struct ethtool_drvinfo *drvinfo)
-{
-	struct alx_priv *alx = netdev_priv(netdev);
-
-	strlcpy(drvinfo->driver, alx_drv_name, sizeof(drvinfo->driver));
-	strlcpy(drvinfo->bus_info, pci_name(alx->hw.pdev),
-		sizeof(drvinfo->bus_info));
-}
-
 const struct ethtool_ops alx_ethtool_ops = {
 	.get_settings	= alx_get_settings,
 	.set_settings	= alx_set_settings,
 	.get_pauseparam	= alx_get_pauseparam,
 	.set_pauseparam	= alx_set_pauseparam,
-	.get_drvinfo	= alx_get_drvinfo,
 	.get_msglevel	= alx_get_msglevel,
 	.set_msglevel	= alx_set_msglevel,
 	.get_wol	= alx_get_wol,
-- 
cgit v0.10.2


From fb825a550a1af75323cee9d62d6fb818384c8c95 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Fri, 28 Jun 2013 16:07:40 -0700
Subject: openvswitch: Add Kconfig dependency on GRE-DEMUX.

Openvswitch uses function from NET_IPGRE_DEMUX module.
Add Kconfig dependency to fix following compilation errors:
http://marc.info/?l=linux-netdev&m=137244035226634

CC: Jesse Gross <jesse@nicira.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Pravin Shelar <pshelar@nicira.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/openvswitch/Kconfig b/net/openvswitch/Kconfig
index 9fbc04a..27ee56b 100644
--- a/net/openvswitch/Kconfig
+++ b/net/openvswitch/Kconfig
@@ -19,8 +19,6 @@ config OPENVSWITCH
 	  which is able to accept configuration from a variety of sources and
 	  translate it into packet processing rules.
 
-	  Open vSwitch GRE support depends on CONFIG_NET_IPGRE_DEMUX.
-
 	  See http://openvswitch.org for more information and userspace
 	  utilities.
 
@@ -28,3 +26,17 @@ config OPENVSWITCH
 	  called openvswitch.
 
 	  If unsure, say N.
+
+config OPENVSWITCH_GRE
+	bool "Open vSwitch GRE tunneling support"
+	depends on INET
+	depends on OPENVSWITCH
+	depends on NET_IPGRE_DEMUX && !(OPENVSWITCH=y && NET_IPGRE_DEMUX=m)
+	default y
+	---help---
+	  If you say Y here, then the Open vSwitch will be able create GRE
+	  vport.
+
+	  Say N to exclude this support and reduce the binary size.
+
+	  If unsure, say Y.
diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
index 943e5c4..493e977 100644
--- a/net/openvswitch/vport-gre.c
+++ b/net/openvswitch/vport-gre.c
@@ -16,7 +16,7 @@
  * 02110-1301, USA
  */
 
-#if IS_ENABLED(CONFIG_NET_IPGRE_DEMUX)
+#ifdef CONFIG_OPENVSWITCH_GRE
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/if.h>
@@ -271,4 +271,5 @@ const struct vport_ops ovs_gre_vport_ops = {
 	.get_name	= gre_get_name,
 	.send		= gre_tnl_send,
 };
-#endif
+
+#endif /* OPENVSWITCH_GRE */
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index ba81294..d4c7fa0 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -39,7 +39,7 @@ static const struct vport_ops *vport_ops_list[] = {
 	&ovs_netdev_vport_ops,
 	&ovs_internal_vport_ops,
 
-#if IS_ENABLED(CONFIG_NET_IPGRE_DEMUX)
+#ifdef CONFIG_OPENVSWITCH_GRE
 	&ovs_gre_vport_ops,
 #endif
 };
-- 
cgit v0.10.2


From 5c29fb12e8fb8a8105ea048cb160fd79a85a52bb Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Thu, 27 Jun 2013 22:46:04 +0200
Subject: ipv6: only apply anti-spoofing checks to not-pointopoint tunnels

Because of commit 218774dc341f219bfcf940304a081b121a0e8099 ("ipv6: add
anti-spoofing checks for 6to4 and 6rd") the sit driver dropped packets
for 2002::/16 destinations and sources even when configured to work as a
tunnel with fixed endpoint. We may only apply the 6rd/6to4 anti-spoofing
checks if the device is not in pointopoint mode.

This was an oversight from me in the above commit, sorry.  Thanks to
Roman Mamedov for reporting this!

Reported-by: Roman Mamedov <rm@romanrm.ru>
Cc: David Miller <davem@davemloft.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 97a0bfe..85ff37b 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -593,7 +593,7 @@ static int ipip6_rcv(struct sk_buff *skb)
 				tunnel->dev->stats.rx_errors++;
 				goto out;
 			}
-		} else {
+		} else if (!(tunnel->dev->flags&IFF_POINTOPOINT)) {
 			if (is_spoofed_6rd(tunnel, iph->saddr,
 					   &ipv6_hdr(skb)->saddr) ||
 			    is_spoofed_6rd(tunnel, iph->daddr,
-- 
cgit v0.10.2


From 52bd4c0c1551daa2efa7bb9e01a2f4ea6d1311bb Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Fri, 28 Jun 2013 17:35:48 +0200
Subject: ipv6: fix ecmp lookup when oif is specified

There is no reason to skip ECMP lookup when oif is specified, but this implies
to check oif given by user when selecting another route.
When the new route does not match oif requirement, we simply keep the initial
one.

Spotted-by: dingzhi <zhi.ding@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 7ca87b37..9ff0b78 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -83,6 +83,7 @@ static void		ip6_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
 					   struct sk_buff *skb, u32 mtu);
 static void		rt6_do_redirect(struct dst_entry *dst, struct sock *sk,
 					struct sk_buff *skb);
+static int rt6_score_route(struct rt6_info *rt, int oif, int strict);
 
 #ifdef CONFIG_IPV6_ROUTE_INFO
 static struct rt6_info *rt6_add_route_info(struct net *net,
@@ -394,7 +395,8 @@ static int rt6_info_hash_nhsfn(unsigned int candidate_count,
 }
 
 static struct rt6_info *rt6_multipath_select(struct rt6_info *match,
-					     struct flowi6 *fl6)
+					     struct flowi6 *fl6, int oif,
+					     int strict)
 {
 	struct rt6_info *sibling, *next_sibling;
 	int route_choosen;
@@ -408,6 +410,8 @@ static struct rt6_info *rt6_multipath_select(struct rt6_info *match,
 				&match->rt6i_siblings, rt6i_siblings) {
 			route_choosen--;
 			if (route_choosen == 0) {
+				if (rt6_score_route(sibling, oif, strict) < 0)
+					break;
 				match = sibling;
 				break;
 			}
@@ -743,7 +747,7 @@ restart:
 	rt = fn->leaf;
 	rt = rt6_device_match(net, rt, &fl6->saddr, fl6->flowi6_oif, flags);
 	if (rt->rt6i_nsiblings && fl6->flowi6_oif == 0)
-		rt = rt6_multipath_select(rt, fl6);
+		rt = rt6_multipath_select(rt, fl6, fl6->flowi6_oif, flags);
 	BACKTRACK(net, &fl6->saddr);
 out:
 	dst_use(&rt->dst, jiffies);
@@ -875,8 +879,8 @@ restart_2:
 
 restart:
 	rt = rt6_select(fn, oif, strict | reachable);
-	if (rt->rt6i_nsiblings && oif == 0)
-		rt = rt6_multipath_select(rt, fl6);
+	if (rt->rt6i_nsiblings)
+		rt = rt6_multipath_select(rt, fl6, oif, strict | reachable);
 	BACKTRACK(net, &fl6->saddr);
 	if (rt == net->ipv6.ip6_null_entry ||
 	    rt->rt6i_flags & RTF_CACHE)
-- 
cgit v0.10.2


From 772e42b07fbdc650206746e00cb2914e362594a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20M=C3=BCllner?=
 <christoph.muellner@theobroma-systems.com>
Date: Thu, 27 Jun 2013 21:18:23 +0200
Subject: net: fec: Fix multicast list setup in fec_restart().

Setup the multicast list of the net_device instead of
clearing it blindly. This restores the multicast groups
in case of a link down/up event or when resuming from
suspend.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index ed6180e..5664acd 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -59,6 +59,8 @@
 
 #include "fec.h"
 
+static void set_multicast_list(struct net_device *ndev);
+
 #if defined(CONFIG_ARM)
 #define FEC_ALIGNMENT	0xf
 #else
@@ -470,9 +472,8 @@ fec_restart(struct net_device *ndev, int duplex)
 	/* Clear any outstanding interrupt. */
 	writel(0xffc00000, fep->hwp + FEC_IEVENT);
 
-	/* Reset all multicast.	*/
-	writel(0, fep->hwp + FEC_GRP_HASH_TABLE_HIGH);
-	writel(0, fep->hwp + FEC_GRP_HASH_TABLE_LOW);
+	/* Setup multicast filter. */
+	set_multicast_list(ndev);
 #ifndef CONFIG_M5272
 	writel(0, fep->hwp + FEC_HASH_TABLE_HIGH);
 	writel(0, fep->hwp + FEC_HASH_TABLE_LOW);
-- 
cgit v0.10.2


From 383eda32b891002d5064cc97243c94b7cf78137a Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 27 Jun 2013 21:57:49 -0700
Subject: xen: Use more current logging styles

Instead of mixing printk and pr_<level> forms,
just use pr_<level>

Miscellaneous changes around these conversions:

Add a missing newline to avoid message interleaving,
coalesce formats, reflow modified lines to 80 columns.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 130bcb2..64828de 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1890,9 +1890,8 @@ static int __init netback_init(void)
 		return -ENODEV;
 
 	if (fatal_skb_slots < XEN_NETBK_LEGACY_SLOTS_MAX) {
-		printk(KERN_INFO
-		       "xen-netback: fatal_skb_slots too small (%d), bump it to XEN_NETBK_LEGACY_SLOTS_MAX (%d)\n",
-		       fatal_skb_slots, XEN_NETBK_LEGACY_SLOTS_MAX);
+		pr_info("fatal_skb_slots too small (%d), bump it to XEN_NETBK_LEGACY_SLOTS_MAX (%d)\n",
+			fatal_skb_slots, XEN_NETBK_LEGACY_SLOTS_MAX);
 		fatal_skb_slots = XEN_NETBK_LEGACY_SLOTS_MAX;
 	}
 
@@ -1921,7 +1920,7 @@ static int __init netback_init(void)
 					     "netback/%u", group);
 
 		if (IS_ERR(netbk->task)) {
-			printk(KERN_ALERT "kthread_create() fails at netback\n");
+			pr_alert("kthread_create() fails at netback\n");
 			del_timer(&netbk->net_timer);
 			rc = PTR_ERR(netbk->task);
 			goto failed_init;
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 76a2236..ff7f111 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -29,6 +29,8 @@
  * IN THE SOFTWARE.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
@@ -385,9 +387,8 @@ static void xennet_tx_buf_gc(struct net_device *dev)
 			skb = np->tx_skbs[id].skb;
 			if (unlikely(gnttab_query_foreign_access(
 				np->grant_tx_ref[id]) != 0)) {
-				printk(KERN_ALERT "xennet_tx_buf_gc: warning "
-				       "-- grant still in use by backend "
-				       "domain.\n");
+				pr_alert("%s: warning -- grant still in use by backend domain\n",
+					 __func__);
 				BUG();
 			}
 			gnttab_end_foreign_access_ref(
@@ -804,14 +805,14 @@ static int xennet_set_skb_gso(struct sk_buff *skb,
 {
 	if (!gso->u.gso.size) {
 		if (net_ratelimit())
-			printk(KERN_WARNING "GSO size must not be zero.\n");
+			pr_warn("GSO size must not be zero\n");
 		return -EINVAL;
 	}
 
 	/* Currently only TCPv4 S.O. is supported. */
 	if (gso->u.gso.type != XEN_NETIF_GSO_TYPE_TCPV4) {
 		if (net_ratelimit())
-			printk(KERN_WARNING "Bad GSO type %d.\n", gso->u.gso.type);
+			pr_warn("Bad GSO type %d\n", gso->u.gso.type);
 		return -EINVAL;
 	}
 
@@ -910,9 +911,8 @@ static int checksum_setup(struct net_device *dev, struct sk_buff *skb)
 		break;
 	default:
 		if (net_ratelimit())
-			printk(KERN_ERR "Attempting to checksum a non-"
-			       "TCP/UDP packet, dropping a protocol"
-			       " %d packet", iph->protocol);
+			pr_err("Attempting to checksum a non-TCP/UDP packet, dropping a protocol %d packet\n",
+			       iph->protocol);
 		goto out;
 	}
 
@@ -1359,14 +1359,14 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
 	/* A grant for every tx ring slot */
 	if (gnttab_alloc_grant_references(TX_MAX_TARGET,
 					  &np->gref_tx_head) < 0) {
-		printk(KERN_ALERT "#### netfront can't alloc tx grant refs\n");
+		pr_alert("can't alloc tx grant refs\n");
 		err = -ENOMEM;
 		goto exit_free_stats;
 	}
 	/* A grant for every rx ring slot */
 	if (gnttab_alloc_grant_references(RX_MAX_TARGET,
 					  &np->gref_rx_head) < 0) {
-		printk(KERN_ALERT "#### netfront can't alloc rx grant refs\n");
+		pr_alert("can't alloc rx grant refs\n");
 		err = -ENOMEM;
 		goto exit_free_tx;
 	}
@@ -1430,16 +1430,14 @@ static int netfront_probe(struct xenbus_device *dev,
 
 	err = register_netdev(info->netdev);
 	if (err) {
-		printk(KERN_WARNING "%s: register_netdev err=%d\n",
-		       __func__, err);
+		pr_warn("%s: register_netdev err=%d\n", __func__, err);
 		goto fail;
 	}
 
 	err = xennet_sysfs_addif(info->netdev);
 	if (err) {
 		unregister_netdev(info->netdev);
-		printk(KERN_WARNING "%s: add sysfs failed err=%d\n",
-		       __func__, err);
+		pr_warn("%s: add sysfs failed err=%d\n", __func__, err);
 		goto fail;
 	}
 
@@ -2116,7 +2114,7 @@ static int __init netif_init(void)
 	if (xen_hvm_domain() && !xen_platform_pci_unplug)
 		return -ENODEV;
 
-	printk(KERN_INFO "Initialising Xen virtual ethernet driver.\n");
+	pr_info("Initialising Xen virtual ethernet driver\n");
 
 	return xenbus_register_frontend(&netfront_driver);
 }
-- 
cgit v0.10.2


From 0d909dcdeffeee3c42703dc1d17766d94fd47b71 Mon Sep 17 00:00:00 2001
From: Byungho An <bh74.an@samsung.com>
Date: Fri, 28 Jun 2013 16:35:31 +0900
Subject: net: stmmac: fixed operator typo

This patch fixed operator typo from & to ==.
Due to incorrect operator, the result is incorrect.

Signed-off-by: Byungho An <bh74.an@samsung.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index ee919ca..4fb74a0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -788,13 +788,13 @@ static void stmmac_check_pcs_mode(struct stmmac_priv *priv)
 	int interface = priv->plat->interface;
 
 	if (priv->dma_cap.pcs) {
-		if ((interface & PHY_INTERFACE_MODE_RGMII) ||
-		    (interface & PHY_INTERFACE_MODE_RGMII_ID) ||
-		    (interface & PHY_INTERFACE_MODE_RGMII_RXID) ||
-		    (interface & PHY_INTERFACE_MODE_RGMII_TXID)) {
+		if ((interface == PHY_INTERFACE_MODE_RGMII) ||
+		    (interface == PHY_INTERFACE_MODE_RGMII_ID) ||
+		    (interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
+		    (interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 			pr_debug("STMMAC: PCS RGMII support enable\n");
 			priv->pcs = STMMAC_PCS_RGMII;
-		} else if (interface & PHY_INTERFACE_MODE_SGMII) {
+		} else if (interface == PHY_INTERFACE_MODE_SGMII) {
 			pr_debug("STMMAC: PCS SGMII support enable\n");
 			priv->pcs = STMMAC_PCS_SGMII;
 		}
-- 
cgit v0.10.2


From 61369d0259a724606f3941a46d2c75155d66cf2c Mon Sep 17 00:00:00 2001
From: Byungho An <bh74.an@samsung.com>
Date: Fri, 28 Jun 2013 16:35:32 +0900
Subject: net: stmmac: fixed enh_desc set always zero

This patch fixed that enh_desc value is always zero.
Due to calling order of stmmac_selec_desc_mode(), enh_desc value is always zero.
Even though mac is set to use enhanced dma descriptor, if enh_desc is zero,
functions related dma descriptor are not working correctly.

Signed-off-by: Byungho An <bh74.an@samsung.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 4fb74a0..5206933 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2566,9 +2566,6 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
 	/* Get and dump the chip ID */
 	priv->synopsys_id = stmmac_get_synopsys_id(priv);
 
-	/* To use alternate (extended) or normal descriptor structures */
-	stmmac_selec_desc_mode(priv);
-
 	/* To use the chained or ring mode */
 	if (chain_mode) {
 		priv->hw->chain = &chain_mode_ops;
@@ -2603,6 +2600,9 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
 	} else
 		pr_info(" No HW DMA feature register supported");
 
+	/* To use alternate (extended) or normal descriptor structures */
+	stmmac_selec_desc_mode(priv);
+
 	ret = priv->hw->mac->rx_ipc(priv->ioaddr);
 	if (!ret) {
 		pr_warn(" RX IPC Checksum Offload not configured.\n");
-- 
cgit v0.10.2


From c9ab4d85de222f3390c67aedc9c18a50e767531e Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 28 Jun 2013 02:37:42 -0700
Subject: neighbour: fix a race in neigh_destroy()

There is a race in neighbour code, because neigh_destroy() uses
skb_queue_purge(&neigh->arp_queue) without holding neighbour lock,
while other parts of the code assume neighbour rwlock is what
protects arp_queue

Convert all skb_queue_purge() calls to the __skb_queue_purge() variant

Use __skb_queue_head_init() instead of skb_queue_head_init()
to make clear we do not use arp_queue.lock

And hold neigh->lock in neigh_destroy() to close the race.

Reported-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 2569ab2..b7de821 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -231,7 +231,7 @@ static void neigh_flush_dev(struct neigh_table *tbl, struct net_device *dev)
 				   we must kill timers etc. and move
 				   it to safe state.
 				 */
-				skb_queue_purge(&n->arp_queue);
+				__skb_queue_purge(&n->arp_queue);
 				n->arp_queue_len_bytes = 0;
 				n->output = neigh_blackhole;
 				if (n->nud_state & NUD_VALID)
@@ -286,7 +286,7 @@ static struct neighbour *neigh_alloc(struct neigh_table *tbl, struct net_device
 	if (!n)
 		goto out_entries;
 
-	skb_queue_head_init(&n->arp_queue);
+	__skb_queue_head_init(&n->arp_queue);
 	rwlock_init(&n->lock);
 	seqlock_init(&n->ha_lock);
 	n->updated	  = n->used = now;
@@ -708,7 +708,9 @@ void neigh_destroy(struct neighbour *neigh)
 	if (neigh_del_timer(neigh))
 		pr_warn("Impossible event\n");
 
-	skb_queue_purge(&neigh->arp_queue);
+	write_lock_bh(&neigh->lock);
+	__skb_queue_purge(&neigh->arp_queue);
+	write_unlock_bh(&neigh->lock);
 	neigh->arp_queue_len_bytes = 0;
 
 	if (dev->netdev_ops->ndo_neigh_destroy)
@@ -858,7 +860,7 @@ static void neigh_invalidate(struct neighbour *neigh)
 		neigh->ops->error_report(neigh, skb);
 		write_lock(&neigh->lock);
 	}
-	skb_queue_purge(&neigh->arp_queue);
+	__skb_queue_purge(&neigh->arp_queue);
 	neigh->arp_queue_len_bytes = 0;
 }
 
@@ -1210,7 +1212,7 @@ int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
 
 			write_lock_bh(&neigh->lock);
 		}
-		skb_queue_purge(&neigh->arp_queue);
+		__skb_queue_purge(&neigh->arp_queue);
 		neigh->arp_queue_len_bytes = 0;
 	}
 out:
-- 
cgit v0.10.2


From ad6276e0fe724b1c8ac3a0bf138d151665ab2349 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Fri, 28 Jun 2013 15:59:26 +0300
Subject: net: fix LLS debug_smp_processor_id() warning

Our use of sched_clock is OK because we don't mind the side effects
of calling it and occasionally waking up on a different CPU.

When CONFIG_DEBUG_PREEMPT is on, disable preempt before calling
sched_clock() so we don't trigger a debug_smp_processor_id() warning.

Reported-by: Cody P Schafer <devel-lists@codyps.com>
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index 5bf2b3a..6d45e6f 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -37,20 +37,40 @@ extern unsigned int sysctl_net_ll_poll __read_mostly;
 #define LL_FLUSH_FAILED		-1
 #define LL_FLUSH_BUSY		-2
 
-/* we can use sched_clock() because we don't care much about precision
+/* a wrapper to make debug_smp_processor_id() happy
+ * we can use sched_clock() because we don't care much about precision
  * we only care that the average is bounded
- * we don't mind a ~2.5% imprecision so <<10 instead of *1000
+ */
+#ifdef CONFIG_DEBUG_PREEMPT
+static inline u64 ll_sched_clock(void)
+{
+	u64 rc;
+
+	preempt_disable_notrace();
+	rc = sched_clock();
+	preempt_enable_no_resched_notrace();
+
+	return rc;
+}
+#else /* CONFIG_DEBUG_PREEMPT */
+static inline u64 ll_sched_clock(void)
+{
+	return sched_clock();
+}
+#endif /* CONFIG_DEBUG_PREEMPT */
+
+/* we don't mind a ~2.5% imprecision so <<10 instead of *1000
  * sk->sk_ll_usec is a u_int so this can't overflow
  */
 static inline u64 ll_sk_end_time(struct sock *sk)
 {
-	return ((u64)ACCESS_ONCE(sk->sk_ll_usec) << 10) + sched_clock();
+	return ((u64)ACCESS_ONCE(sk->sk_ll_usec) << 10) + ll_sched_clock();
 }
 
 /* in poll/select we use the global sysctl_net_ll_poll value */
 static inline u64 ll_end_time(void)
 {
-	return ((u64)ACCESS_ONCE(sysctl_net_ll_poll) << 10) + sched_clock();
+	return ((u64)ACCESS_ONCE(sysctl_net_ll_poll) << 10) + ll_sched_clock();
 }
 
 static inline bool sk_valid_ll(struct sock *sk)
@@ -61,7 +81,7 @@ static inline bool sk_valid_ll(struct sock *sk)
 
 static inline bool can_poll_ll(u64 end_time)
 {
-	return !time_after64(sched_clock(), end_time);
+	return !time_after64(ll_sched_clock(), end_time);
 }
 
 /* when used in sock_poll() nonblock is known at compile time to be true
-- 
cgit v0.10.2


From 91e2fd337839319c7745e2cb84cfbf8cf1426a1a Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Fri, 28 Jun 2013 15:59:35 +0300
Subject: net: avoid calling sched_clock when LLS is off

Change Low Latency Sockets code for select and poll so that
when LLS is disabled sched_clock() is never called.

Also, avoid sending POLL_LL to sockets if disabled.

Reported-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/fs/select.c b/fs/select.c
index 79b876e..3654075 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -402,7 +402,7 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 	poll_table *wait;
 	int retval, i, timed_out = 0;
 	unsigned long slack = 0;
-	unsigned int ll_flag = POLL_LL;
+	unsigned int ll_flag = ll_get_flag();
 	u64 ll_time = ll_end_time();
 
 	rcu_read_lock();
@@ -497,7 +497,8 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 			break;
 		}
 
-		if (can_ll && can_poll_ll(ll_time))
+		/* only if on, have sockets with POLL_LL and not out of time */
+		if (ll_flag && can_ll && can_poll_ll(ll_time))
 			continue;
 
 		/*
@@ -768,7 +769,7 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 	ktime_t expire, *to = NULL;
 	int timed_out = 0, count = 0;
 	unsigned long slack = 0;
-	unsigned int ll_flag = POLL_LL;
+	unsigned int ll_flag = ll_get_flag();
 	u64 ll_time = ll_end_time();
 
 	/* Optimise the no-wait case */
@@ -817,8 +818,10 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 		if (count || timed_out)
 			break;
 
-		if (can_ll && can_poll_ll(ll_time))
+		/* only if on, have sockets with POLL_LL and not out of time */
+		if (ll_flag && can_ll && can_poll_ll(ll_time))
 			continue;
+
 		/*
 		 * If this is the first loop and we have a timeout
 		 * given, then we convert to ktime_t and set the to
diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index 6d45e6f..6c06f7c 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -37,6 +37,11 @@ extern unsigned int sysctl_net_ll_poll __read_mostly;
 #define LL_FLUSH_FAILED		-1
 #define LL_FLUSH_BUSY		-2
 
+static inline unsigned int ll_get_flag(void)
+{
+	return sysctl_net_ll_poll ? POLL_LL : 0;
+}
+
 /* a wrapper to make debug_smp_processor_id() happy
  * we can use sched_clock() because we don't care much about precision
  * we only care that the average is bounded
@@ -67,10 +72,14 @@ static inline u64 ll_sk_end_time(struct sock *sk)
 	return ((u64)ACCESS_ONCE(sk->sk_ll_usec) << 10) + ll_sched_clock();
 }
 
-/* in poll/select we use the global sysctl_net_ll_poll value */
+/* in poll/select we use the global sysctl_net_ll_poll value
+ * only call sched_clock() if enabled
+ */
 static inline u64 ll_end_time(void)
 {
-	return ((u64)ACCESS_ONCE(sysctl_net_ll_poll) << 10) + ll_sched_clock();
+	u64 end_time = ACCESS_ONCE(sysctl_net_ll_poll);
+
+	return end_time ? (end_time << 10) + ll_sched_clock() : 0;
 }
 
 static inline bool sk_valid_ll(struct sock *sk)
@@ -141,6 +150,10 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 }
 
 #else /* CONFIG_NET_LL_RX_POLL */
+static inline unsigned long ll_get_flag(void)
+{
+	return 0;
+}
 
 static inline u64 sk_ll_end_time(struct sock *sk)
 {
-- 
cgit v0.10.2


From 5a008ffa73b4401251d548c10cadac6f8a67cfb5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
Date: Fri, 28 Jun 2013 17:17:49 +0200
Subject: net: qmi_wwan: fixup Sierra Wireless MC8305 entry
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The MC8305 module got an additional entry added based solely on
information from a Windows driver *.inf file. We now have the
actual descriptor layout from one of these modules, and it
consists of two alternate configurations where cfg #1 is a
normal Gobi 2k layout and cfg #2 is MBIM only, using interface
numbers 5 and 6 for MBIM control and data. The extra Windows
driver entry for interface number 5 was most likely a bug.

Deleting the bogus entry to avoid unnecessary qmi_wwan probe
failures when using the MBIM configuration.

Reported-by: Lana Black <sickmind@lavabit.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index d095d0d..1d1021c 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -625,7 +625,6 @@ static const struct usb_device_id products[] = {
 	{QMI_GOBI_DEVICE(0x1199, 0x9009)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
 	{QMI_GOBI_DEVICE(0x1199, 0x900a)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
 	{QMI_GOBI_DEVICE(0x1199, 0x9011)},	/* Sierra Wireless Gobi 2000 Modem device (MC8305) */
-	{QMI_FIXED_INTF(0x1199, 0x9011, 5)},	/* alternate interface number!? */
 	{QMI_GOBI_DEVICE(0x16d8, 0x8002)},	/* CMDTech Gobi 2000 Modem device (VU922) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9205)},	/* Gobi 2000 Modem device */
 	{QMI_GOBI_DEVICE(0x1199, 0x9013)},	/* Sierra Wireless Gobi 3000 Modem device (MC8355) */
-- 
cgit v0.10.2


From aa3aba1cbcbe823bba623c7cab33d84ddf0fb6cd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
Date: Fri, 28 Jun 2013 17:17:50 +0200
Subject: net: qmi_wwan: add Option GTM681W
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

A standard Gobi 3000 reference design module.

Reported-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 1d1021c..e4a0843 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -612,6 +612,7 @@ static const struct usb_device_id products[] = {
 	{QMI_GOBI_DEVICE(0x05c6, 0x9265)},	/* Asus Gobi 2000 Modem device (VR305) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9235)},	/* Top Global Gobi 2000 Modem device (VR306) */
 	{QMI_GOBI_DEVICE(0x05c6, 0x9275)},	/* iRex Technologies Gobi 2000 Modem device (VR307) */
+	{QMI_GOBI_DEVICE(0x0af0, 0x8120)},	/* Option GTM681W */
 	{QMI_GOBI_DEVICE(0x1199, 0x68a5)},	/* Sierra Wireless Modem */
 	{QMI_GOBI_DEVICE(0x1199, 0x68a9)},	/* Sierra Wireless Modem */
 	{QMI_GOBI_DEVICE(0x1199, 0x9001)},	/* Sierra Wireless Gobi 2000 Modem device (VT773) */
-- 
cgit v0.10.2


From d0b5e516298fba30774e2df22cfbd00ecb09c298 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
Date: Fri, 28 Jun 2013 17:17:51 +0200
Subject: net: qmi_wwan: add TP-LINK MA260
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index e4a0843..6de1102 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -582,6 +582,7 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x1199, 0x901c, 8)},    /* Sierra Wireless EM7700 */
 	{QMI_FIXED_INTF(0x1bbb, 0x011e, 4)},	/* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */
 	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */
+	{QMI_FIXED_INTF(0x2357, 0x9000, 4)},	/* TP-LINK MA260 */
 	{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},	/* Telit LE920 */
 	{QMI_FIXED_INTF(0x1e2d, 0x12d1, 4)},	/* Cinterion PLxx */
 
-- 
cgit v0.10.2


From aec0a40a6f78843c0ce73f7398230ee5184f896d Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 28 Jun 2013 07:40:57 -0700
Subject: netem: use rb tree to implement the time queue

Following typical setup to implement a ~100 ms RTT and big
amount of reorders has very poor performance because netem
implements the time queue using a linked list.
-----------------------------------------------------------
ETH=eth0
IFB=ifb0
modprobe ifb
ip link set dev $IFB up
tc qdisc add dev $ETH ingress 2>/dev/null
tc filter add dev $ETH parent ffff: \
   protocol ip u32 match u32 0 0 flowid 1:1 action mirred egress \
   redirect dev $IFB
ethtool -K $ETH gro off tso off gso off
tc qdisc add dev $IFB root netem delay 50ms 10ms limit 100000
tc qd add dev $ETH root netem delay 50ms limit 100000
---------------------------------------------------------

Switch netem time queue to a rb tree, so this kind of setup can work at
high speed.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 3d2acc7..ed0082c 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -23,6 +23,7 @@
 #include <linux/vmalloc.h>
 #include <linux/rtnetlink.h>
 #include <linux/reciprocal_div.h>
+#include <linux/rbtree.h>
 
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
@@ -68,7 +69,8 @@
 */
 
 struct netem_sched_data {
-	/* internal t(ime)fifo qdisc uses sch->q and sch->limit */
+	/* internal t(ime)fifo qdisc uses t_root and sch->limit */
+	struct rb_root t_root;
 
 	/* optional qdisc for classful handling (NULL at netem init) */
 	struct Qdisc	*qdisc;
@@ -128,10 +130,35 @@ struct netem_sched_data {
  */
 struct netem_skb_cb {
 	psched_time_t	time_to_send;
+	ktime_t		tstamp_save;
 };
 
+/* Because space in skb->cb[] is tight, netem overloads skb->next/prev/tstamp
+ * to hold a rb_node structure.
+ *
+ * If struct sk_buff layout is changed, the following checks will complain.
+ */
+static struct rb_node *netem_rb_node(struct sk_buff *skb)
+{
+	BUILD_BUG_ON(offsetof(struct sk_buff, next) != 0);
+	BUILD_BUG_ON(offsetof(struct sk_buff, prev) !=
+		     offsetof(struct sk_buff, next) + sizeof(skb->next));
+	BUILD_BUG_ON(offsetof(struct sk_buff, tstamp) !=
+		     offsetof(struct sk_buff, prev) + sizeof(skb->prev));
+	BUILD_BUG_ON(sizeof(struct rb_node) > sizeof(skb->next) +
+					      sizeof(skb->prev) +
+					      sizeof(skb->tstamp));
+	return (struct rb_node *)&skb->next;
+}
+
+static struct sk_buff *netem_rb_to_skb(struct rb_node *rb)
+{
+	return (struct sk_buff *)rb;
+}
+
 static inline struct netem_skb_cb *netem_skb_cb(struct sk_buff *skb)
 {
+	/* we assume we can use skb next/prev/tstamp as storage for rb_node */
 	qdisc_cb_private_validate(skb, sizeof(struct netem_skb_cb));
 	return (struct netem_skb_cb *)qdisc_skb_cb(skb)->data;
 }
@@ -333,20 +360,23 @@ static psched_time_t packet_len_2_sched_time(unsigned int len, struct netem_sche
 
 static void tfifo_enqueue(struct sk_buff *nskb, struct Qdisc *sch)
 {
-	struct sk_buff_head *list = &sch->q;
+	struct netem_sched_data *q = qdisc_priv(sch);
 	psched_time_t tnext = netem_skb_cb(nskb)->time_to_send;
-	struct sk_buff *skb = skb_peek_tail(list);
+	struct rb_node **p = &q->t_root.rb_node, *parent = NULL;
 
-	/* Optimize for add at tail */
-	if (likely(!skb || tnext >= netem_skb_cb(skb)->time_to_send))
-		return __skb_queue_tail(list, nskb);
+	while (*p) {
+		struct sk_buff *skb;
 
-	skb_queue_reverse_walk(list, skb) {
+		parent = *p;
+		skb = netem_rb_to_skb(parent);
 		if (tnext >= netem_skb_cb(skb)->time_to_send)
-			break;
+			p = &parent->rb_right;
+		else
+			p = &parent->rb_left;
 	}
-
-	__skb_queue_after(list, skb, nskb);
+	rb_link_node(netem_rb_node(nskb), parent, p);
+	rb_insert_color(netem_rb_node(nskb), &q->t_root);
+	sch->q.qlen++;
 }
 
 /*
@@ -436,23 +466,28 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 		now = psched_get_time();
 
 		if (q->rate) {
-			struct sk_buff_head *list = &sch->q;
+			struct sk_buff *last;
 
-			if (!skb_queue_empty(list)) {
+			if (!skb_queue_empty(&sch->q))
+				last = skb_peek_tail(&sch->q);
+			else
+				last = netem_rb_to_skb(rb_last(&q->t_root));
+			if (last) {
 				/*
 				 * Last packet in queue is reference point (now),
 				 * calculate this time bonus and subtract
 				 * from delay.
 				 */
-				delay -= netem_skb_cb(skb_peek_tail(list))->time_to_send - now;
+				delay -= netem_skb_cb(last)->time_to_send - now;
 				delay = max_t(psched_tdiff_t, 0, delay);
-				now = netem_skb_cb(skb_peek_tail(list))->time_to_send;
+				now = netem_skb_cb(last)->time_to_send;
 			}
 
 			delay += packet_len_2_sched_time(skb->len, q);
 		}
 
 		cb->time_to_send = now + delay;
+		cb->tstamp_save = skb->tstamp;
 		++q->counter;
 		tfifo_enqueue(skb, sch);
 	} else {
@@ -476,6 +511,21 @@ static unsigned int netem_drop(struct Qdisc *sch)
 	unsigned int len;
 
 	len = qdisc_queue_drop(sch);
+
+	if (!len) {
+		struct rb_node *p = rb_first(&q->t_root);
+
+		if (p) {
+			struct sk_buff *skb = netem_rb_to_skb(p);
+
+			rb_erase(p, &q->t_root);
+			sch->q.qlen--;
+			skb->next = NULL;
+			skb->prev = NULL;
+			len = qdisc_pkt_len(skb);
+			kfree_skb(skb);
+		}
+	}
 	if (!len && q->qdisc && q->qdisc->ops->drop)
 	    len = q->qdisc->ops->drop(q->qdisc);
 	if (len)
@@ -488,19 +538,32 @@ static struct sk_buff *netem_dequeue(struct Qdisc *sch)
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
 	struct sk_buff *skb;
+	struct rb_node *p;
 
 	if (qdisc_is_throttled(sch))
 		return NULL;
 
 tfifo_dequeue:
-	skb = qdisc_peek_head(sch);
+	skb = __skb_dequeue(&sch->q);
 	if (skb) {
-		const struct netem_skb_cb *cb = netem_skb_cb(skb);
+deliver:
+		sch->qstats.backlog -= qdisc_pkt_len(skb);
+		qdisc_unthrottled(sch);
+		qdisc_bstats_update(sch, skb);
+		return skb;
+	}
+	p = rb_first(&q->t_root);
+	if (p) {
+		skb = netem_rb_to_skb(p);
 
 		/* if more time remaining? */
-		if (cb->time_to_send <= psched_get_time()) {
-			__skb_unlink(skb, &sch->q);
-			sch->qstats.backlog -= qdisc_pkt_len(skb);
+		if (netem_skb_cb(skb)->time_to_send <= psched_get_time()) {
+			rb_erase(p, &q->t_root);
+
+			sch->q.qlen--;
+			skb->next = NULL;
+			skb->prev = NULL;
+			skb->tstamp = netem_skb_cb(skb)->tstamp_save;
 
 #ifdef CONFIG_NET_CLS_ACT
 			/*
@@ -522,10 +585,7 @@ tfifo_dequeue:
 				}
 				goto tfifo_dequeue;
 			}
-deliver:
-			qdisc_unthrottled(sch);
-			qdisc_bstats_update(sch, skb);
-			return skb;
+			goto deliver;
 		}
 
 		if (q->qdisc) {
@@ -533,7 +593,8 @@ deliver:
 			if (skb)
 				goto deliver;
 		}
-		qdisc_watchdog_schedule(&q->watchdog, cb->time_to_send);
+		qdisc_watchdog_schedule(&q->watchdog,
+					netem_skb_cb(skb)->time_to_send);
 	}
 
 	if (q->qdisc) {
-- 
cgit v0.10.2


From 4ccb93ce7439b63c31bc7597bfffd13567fa483d Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Fri, 28 Jun 2013 12:13:52 -0400
Subject: x25: Fix broken locking in ioctl error paths.

Two of the x25 ioctl cases have error paths that break out of the function without
unlocking the socket, leading to this warning:

================================================
[ BUG: lock held when returning to user space! ]
3.10.0-rc7+ #36 Not tainted
------------------------------------------------
trinity-child2/31407 is leaving the kernel with locks still held!
1 lock held by trinity-child2/31407:
 #0:  (sk_lock-AF_X25){+.+.+.}, at: [<ffffffffa024b6da>] x25_ioctl+0x8a/0x740 [x25]

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 1d964e2..45a3ab5 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1583,11 +1583,11 @@ out_cud_release:
 	case SIOCX25CALLACCPTAPPRV: {
 		rc = -EINVAL;
 		lock_sock(sk);
-		if (sk->sk_state != TCP_CLOSE)
-			break;
-		clear_bit(X25_ACCPT_APPRV_FLAG, &x25->flags);
+		if (sk->sk_state == TCP_CLOSE) {
+			clear_bit(X25_ACCPT_APPRV_FLAG, &x25->flags);
+			rc = 0;
+		}
 		release_sock(sk);
-		rc = 0;
 		break;
 	}
 
@@ -1595,14 +1595,15 @@ out_cud_release:
 		rc = -EINVAL;
 		lock_sock(sk);
 		if (sk->sk_state != TCP_ESTABLISHED)
-			break;
+			goto out_sendcallaccpt_release;
 		/* must call accptapprv above */
 		if (test_bit(X25_ACCPT_APPRV_FLAG, &x25->flags))
-			break;
+			goto out_sendcallaccpt_release;
 		x25_write_internal(sk, X25_CALL_ACCEPTED);
 		x25->state = X25_STATE_3;
-		release_sock(sk);
 		rc = 0;
+out_sendcallaccpt_release:
+		release_sock(sk);
 		break;
 	}
 
-- 
cgit v0.10.2


From b1a5a34bd0b8767ea689e68f8ea513e9710b671e Mon Sep 17 00:00:00 2001
From: Changli Gao <xiaosuo@gmail.com>
Date: Sat, 29 Jun 2013 00:15:51 +0800
Subject: net: Swap ver and type in pppoe_hdr

Ver and type in pppoe_hdr should be swapped as defined by RFC2516
section-4.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/uapi/linux/if_pppox.h b/include/uapi/linux/if_pppox.h
index 0b46fd5..e36a4ae 100644
--- a/include/uapi/linux/if_pppox.h
+++ b/include/uapi/linux/if_pppox.h
@@ -135,11 +135,11 @@ struct pppoe_tag {
 
 struct pppoe_hdr {
 #if defined(__LITTLE_ENDIAN_BITFIELD)
-	__u8 ver : 4;
 	__u8 type : 4;
+	__u8 ver : 4;
 #elif defined(__BIG_ENDIAN_BITFIELD)
-	__u8 type : 4;
 	__u8 ver : 4;
+	__u8 type : 4;
 #else
 #error	"Please fix <asm/byteorder.h>"
 #endif
-- 
cgit v0.10.2


From 1067964305df131ede2c08c2f3c9b3892640f1c6 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 28 Jun 2013 19:49:39 +0200
Subject: lib: vsprintf: add IPv4/v6 generic %p[Ii]S[pfs] format specifier

In order to avoid making code that deals with printing both, IPv4 and
IPv6 addresses, unnecessary complicated as for example ...

  if (sa.sa_family == AF_INET6)
    printk("... %pI6 ...", ..sin6_addr);
  else
    printk("... %pI4 ...", ..sin_addr.s_addr);

... it would be better to introduce a format specifier that can deal
with those kind of situations internally; just as we have a "struct
sockaddr" for generic mapping into "struct sockaddr_in" or "struct
sockaddr_in6" as e.g. done in "union sctp_addr". Then, we could
reduce the above statement into something like:

  printk("... %pIS ..", &sockaddr);

In case our pointer is NULL, pointer() then deals with that already at
an earlier point in time internally. While we're at it, support for both
%piS/%pIS, where 'S' stands for sockaddr, comes (almost) for free.

Additionally to that, postfix specifiers 'p', 'f' and 's' are supported
as suggested and initially implemented in 2009 by Joe Perches [1].
Handling of those additional specifiers orientate on the initial RFC that
was proposed. Also we support IPv6 compressed format specified by 'c' and
various other IPv4 extensions as stated in the documentation part.

Likely, there are many other areas than just SCTP in the kernel to make
use of this extension as well.

 [1] http://patchwork.ozlabs.org/patch/31480/

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
CC: Joe Perches <joe@perches.com>
CC: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt
index 3af5ae6..3e8cb73 100644
--- a/Documentation/printk-formats.txt
+++ b/Documentation/printk-formats.txt
@@ -121,6 +121,38 @@ IPv6 addresses:
 	print a compressed IPv6 address as described by
 	http://tools.ietf.org/html/rfc5952
 
+IPv4/IPv6 addresses (generic, with port, flowinfo, scope):
+
+	%pIS	1.2.3.4		or 0001:0002:0003:0004:0005:0006:0007:0008
+	%piS	001.002.003.004	or 00010002000300040005000600070008
+	%pISc	1.2.3.4		or 1:2:3:4:5:6:7:8
+	%pISpc	1.2.3.4:12345	or [1:2:3:4:5:6:7:8]:12345
+	%p[Ii]S[pfschnbl]
+
+	For printing an IP address without the need to distinguish whether it's
+	of type AF_INET or AF_INET6, a pointer to a valid 'struct sockaddr',
+	specified through 'IS' or 'iS', can be passed to this format specifier.
+
+	The additional 'p', 'f', and 's' specifiers are used to specify port
+	(IPv4, IPv6), flowinfo (IPv6) and scope (IPv6). Ports have a ':' prefix,
+	flowinfo a '/' and scope a '%', each followed by the actual value.
+
+	In case of an IPv6 address the compressed IPv6 address as described by
+	http://tools.ietf.org/html/rfc5952 is being used if the additional
+	specifier 'c' is given. The IPv6 address is surrounded by '[', ']' in
+	case of additional specifiers 'p', 'f' or 's' as suggested by
+	https://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-07
+
+	In case of IPv4 addresses, the additional 'h', 'n', 'b', and 'l'
+	specifiers can be used as well and are ignored in case of an IPv6
+	address.
+
+	Further examples:
+
+	%pISfc		1.2.3.4		or [1:2:3:4:5:6:7:8]/123456789
+	%pISsc		1.2.3.4		or [1:2:3:4:5:6:7:8]%1234567890
+	%pISpfc		1.2.3.4:12345	or [1:2:3:4:5:6:7:8]:12345/123456789
+
 UUID/GUID addresses:
 
 	%pUb	00010203-0405-0607-0809-0a0b0c0d0e0f
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index e149c64..31febc0 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -923,6 +923,103 @@ char *ip4_addr_string(char *buf, char *end, const u8 *addr,
 }
 
 static noinline_for_stack
+char *ip6_addr_string_sa(char *buf, char *end, const struct sockaddr_in6 *sa,
+			 struct printf_spec spec, const char *fmt)
+{
+	bool have_p = false, have_s = false, have_f = false, have_c = false;
+	char ip6_addr[sizeof("[xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255.255.255.255]") +
+		      sizeof(":12345") + sizeof("/123456789") +
+		      sizeof("%1234567890")];
+	char *p = ip6_addr, *pend = ip6_addr + sizeof(ip6_addr);
+	const u8 *addr = (const u8 *) &sa->sin6_addr;
+	char fmt6[2] = { fmt[0], '6' };
+	u8 off = 0;
+
+	fmt++;
+	while (isalpha(*++fmt)) {
+		switch (*fmt) {
+		case 'p':
+			have_p = true;
+			break;
+		case 'f':
+			have_f = true;
+			break;
+		case 's':
+			have_s = true;
+			break;
+		case 'c':
+			have_c = true;
+			break;
+		}
+	}
+
+	if (have_p || have_s || have_f) {
+		*p = '[';
+		off = 1;
+	}
+
+	if (fmt6[0] == 'I' && have_c)
+		p = ip6_compressed_string(ip6_addr + off, addr);
+	else
+		p = ip6_string(ip6_addr + off, addr, fmt6);
+
+	if (have_p || have_s || have_f)
+		*p++ = ']';
+
+	if (have_p) {
+		*p++ = ':';
+		p = number(p, pend, ntohs(sa->sin6_port), spec);
+	}
+	if (have_f) {
+		*p++ = '/';
+		p = number(p, pend, ntohl(sa->sin6_flowinfo &
+					  IPV6_FLOWINFO_MASK), spec);
+	}
+	if (have_s) {
+		*p++ = '%';
+		p = number(p, pend, sa->sin6_scope_id, spec);
+	}
+	*p = '\0';
+
+	return string(buf, end, ip6_addr, spec);
+}
+
+static noinline_for_stack
+char *ip4_addr_string_sa(char *buf, char *end, const struct sockaddr_in *sa,
+			 struct printf_spec spec, const char *fmt)
+{
+	bool have_p = false;
+	char *p, ip4_addr[sizeof("255.255.255.255") + sizeof(":12345")];
+	char *pend = ip4_addr + sizeof(ip4_addr);
+	const u8 *addr = (const u8 *) &sa->sin_addr.s_addr;
+	char fmt4[3] = { fmt[0], '4', 0 };
+
+	fmt++;
+	while (isalpha(*++fmt)) {
+		switch (*fmt) {
+		case 'p':
+			have_p = true;
+			break;
+		case 'h':
+		case 'l':
+		case 'n':
+		case 'b':
+			fmt4[2] = *fmt;
+			break;
+		}
+	}
+
+	p = ip4_string(ip4_addr, addr, fmt4);
+	if (have_p) {
+		*p++ = ':';
+		p = number(p, pend, ntohs(sa->sin_port), spec);
+	}
+	*p = '\0';
+
+	return string(buf, end, ip4_addr, spec);
+}
+
+static noinline_for_stack
 char *uuid_string(char *buf, char *end, const u8 *addr,
 		  struct printf_spec spec, const char *fmt)
 {
@@ -1007,11 +1104,17 @@ int kptr_restrict __read_mostly;
  * - 'I' [46] for IPv4/IPv6 addresses printed in the usual way
  *       IPv4 uses dot-separated decimal without leading 0's (1.2.3.4)
  *       IPv6 uses colon separated network-order 16 bit hex with leading 0's
+ *       [S][pfs]
+ *       Generic IPv4/IPv6 address (struct sockaddr *) that falls back to
+ *       [4] or [6] and is able to print port [p], flowinfo [f], scope [s]
  * - 'i' [46] for 'raw' IPv4/IPv6 addresses
  *       IPv6 omits the colons (01020304...0f)
  *       IPv4 uses dot-separated decimal with leading 0's (010.123.045.006)
- * - '[Ii]4[hnbl]' IPv4 addresses in host, network, big or little endian order
- * - 'I6c' for IPv6 addresses printed as specified by
+ *       [S][pfs]
+ *       Generic IPv4/IPv6 address (struct sockaddr *) that falls back to
+ *       [4] or [6] and is able to print port [p], flowinfo [f], scope [s]
+ * - '[Ii][4S][hnbl]' IPv4 addresses in host, network, big or little endian order
+ * - 'I[6S]c' for IPv6 addresses printed as specified by
  *       http://tools.ietf.org/html/rfc5952
  * - 'U' For a 16 byte UUID/GUID, it prints the UUID/GUID in the form
  *       "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
@@ -1093,6 +1196,21 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 			return ip6_addr_string(buf, end, ptr, spec, fmt);
 		case '4':
 			return ip4_addr_string(buf, end, ptr, spec, fmt);
+		case 'S': {
+			const union {
+				struct sockaddr		raw;
+				struct sockaddr_in	v4;
+				struct sockaddr_in6	v6;
+			} *sa = ptr;
+
+			switch (sa->raw.sa_family) {
+			case AF_INET:
+				return ip4_addr_string_sa(buf, end, &sa->v4, spec, fmt);
+			case AF_INET6:
+				return ip6_addr_string_sa(buf, end, &sa->v6, spec, fmt);
+			default:
+				return string(buf, end, "(invalid address)", spec);
+			}}
 		}
 		break;
 	case 'U':
@@ -1370,6 +1488,8 @@ qualifier:
  * %pI6 print an IPv6 address with colons
  * %pi6 print an IPv6 address without colons
  * %pI6c print an IPv6 address as specified by RFC 5952
+ * %pIS depending on sa_family of 'struct sockaddr *' print IPv4/IPv6 address
+ * %piS depending on sa_family of 'struct sockaddr *' print IPv4/IPv6 address
  * %pU[bBlL] print a UUID/GUID in big or little endian using lower or upper
  *   case.
  * %*ph[CDN] a variable-length hex string with a separator (supports up to 64
-- 
cgit v0.10.2


From bb33381d0c97cdee25f2cdab540b6e2bd16fa03b Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 28 Jun 2013 19:49:40 +0200
Subject: net: sctp: rework debugging framework to use pr_debug and friends

We should get rid of all own SCTP debug printk macros and use the ones
that the kernel offers anyway instead. This makes the code more readable
and conform to the kernel code, and offers all the features of dynamic
debbuging that pr_debug() et al has, such as only turning on/off portions
of debug messages at runtime through debugfs. The runtime cost of having
CONFIG_DYNAMIC_DEBUG enabled, but none of the debug statements printing,
is negligible [1]. If kernel debugging is completly turned off, then these
statements will also compile into "empty" functions.

While we're at it, we also need to change the Kconfig option as it /now/
only refers to the ifdef'ed code portions in outqueue.c that enable further
debugging/tracing of SCTP transaction fields. Also, since SCTP_ASSERT code
was enabled with this Kconfig option and has now been removed, we
transform those code parts into WARNs resp. where appropriate BUG_ONs so
that those bugs can be more easily detected as probably not many people
have SCTP debugging permanently turned on.

To turn on all SCTP debugging, the following steps are needed:

 # mount -t debugfs none /sys/kernel/debug
 # echo -n 'module sctp +p' > /sys/kernel/debug/dynamic_debug/control

This can be done more fine-grained on a per file, per line basis and others
as described in [2].

 [1] https://www.kernel.org/doc/ols/2009/ols2009-pages-39-46.pdf
 [2] Documentation/dynamic-debug-howto.txt

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index e6b95bc..d8e37ec 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -83,16 +83,6 @@
 #include <net/sctp/structs.h>
 #include <net/sctp/constants.h>
 
-
-/* Set SCTP_DEBUG flag via config if not already set. */
-#ifndef SCTP_DEBUG
-#ifdef CONFIG_SCTP_DBG_MSG
-#define SCTP_DEBUG	1
-#else
-#define SCTP_DEBUG      0
-#endif /* CONFIG_SCTP_DBG */
-#endif /* SCTP_DEBUG */
-
 #ifdef CONFIG_IP_SCTP_MODULE
 #define SCTP_PROTOSW_FLAG 0
 #else /* static! */
@@ -270,61 +260,6 @@ static inline void sctp_max_rto(struct sctp_association *asoc,
 	}
 }
 
-/* Print debugging messages.  */
-#if SCTP_DEBUG
-extern int sctp_debug_flag;
-#define SCTP_DEBUG_PRINTK(fmt, args...)			\
-do {							\
-	if (sctp_debug_flag)				\
-		printk(KERN_DEBUG pr_fmt(fmt), ##args);	\
-} while (0)
-#define SCTP_DEBUG_PRINTK_CONT(fmt, args...)		\
-do {							\
-	if (sctp_debug_flag)				\
-		pr_cont(fmt, ##args);			\
-} while (0)
-#define SCTP_DEBUG_PRINTK_IPADDR(fmt_lead, fmt_trail,			\
-				 args_lead, addr, args_trail...)	\
-do {									\
-	const union sctp_addr *_addr = (addr);				\
-	if (sctp_debug_flag) {						\
-		if (_addr->sa.sa_family == AF_INET6) {			\
-			printk(KERN_DEBUG				\
-			       pr_fmt(fmt_lead "%pI6" fmt_trail),	\
-			       args_lead,				\
-			       &_addr->v6.sin6_addr,			\
-			       args_trail);				\
-		} else {						\
-			printk(KERN_DEBUG				\
-			       pr_fmt(fmt_lead "%pI4" fmt_trail),	\
-			       args_lead,				\
-			       &_addr->v4.sin_addr.s_addr,		\
-			       args_trail);				\
-		}							\
-	}								\
-} while (0)
-#define SCTP_ENABLE_DEBUG { sctp_debug_flag = 1; }
-#define SCTP_DISABLE_DEBUG { sctp_debug_flag = 0; }
-
-#define SCTP_ASSERT(expr, str, func) \
-	if (!(expr)) { \
-		SCTP_DEBUG_PRINTK("Assertion Failed: %s(%s) at %s:%s:%d\n", \
-			str, (#expr), __FILE__, __func__, __LINE__); \
-		func; \
-	}
-
-#else	/* SCTP_DEBUG */
-
-#define SCTP_DEBUG_PRINTK(whatever...)
-#define SCTP_DEBUG_PRINTK_CONT(fmt, args...)
-#define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
-#define SCTP_ENABLE_DEBUG
-#define SCTP_DISABLE_DEBUG
-#define SCTP_ASSERT(expr, str, func)
-
-#endif /* SCTP_DEBUG */
-
-
 /*
  * Macros for keeping a global reference of object allocations.
  */
@@ -597,16 +532,6 @@ static inline int param_type2af(__be16 type)
 	}
 }
 
-/* Perform some sanity checks. */
-static inline int sctp_sanity_check(void)
-{
-	SCTP_ASSERT(sizeof(struct sctp_ulpevent) <=
-		    sizeof(((struct sk_buff *)0)->cb),
-		    "SCTP: ulpevent does not fit in skb!\n", return 0);
-
-	return 1;
-}
-
 /* Warning: The following hash functions assume a power of two 'size'. */
 /* This is the hash function for the SCTP port hash table. */
 static inline int sctp_phashfn(struct net *net, __u16 lport)
diff --git a/net/sctp/Kconfig b/net/sctp/Kconfig
index cf48528..d80bf1a 100644
--- a/net/sctp/Kconfig
+++ b/net/sctp/Kconfig
@@ -30,7 +30,8 @@ menuconfig IP_SCTP
 	  homing at either or both ends of an association."
 
 	  To compile this protocol support as a module, choose M here: the
-	  module will be called sctp.
+	  module will be called sctp. Debug messages are handeled by the
+	  kernel's dynamic debugging framework.
 
 	  If in doubt, say N.
 
@@ -48,13 +49,14 @@ config NET_SCTPPROBE
         To compile this code as a module, choose M here: the
         module will be called sctp_probe.
 
-config SCTP_DBG_MSG
-	bool "SCTP: Debug messages"
+config SCTP_DBG_TSNS
+	bool "SCTP: Debug transactions"
 	help
-	  If you say Y, this will enable verbose debugging messages. 
+	  If you say Y, this will enable transaction debugging, visible
+	  from the kernel's dynamic debugging framework.
 
 	  If unsure, say N.  However, if you are running into problems, use 
-	  this option to gather detailed trace information
+	  this option to gather outqueue trace information.
 
 config SCTP_DBG_OBJCNT
 	bool "SCTP: Debug object counts"
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 9a383a8..bce5b79 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -357,7 +357,8 @@ struct sctp_association *sctp_association_new(const struct sctp_endpoint *ep,
 		goto fail_init;
 
 	SCTP_DBG_OBJCNT_INC(assoc);
-	SCTP_DEBUG_PRINTK("Created asoc %p\n", asoc);
+
+	pr_debug("Created asoc %p\n", asoc);
 
 	return asoc;
 
@@ -455,7 +456,10 @@ void sctp_association_free(struct sctp_association *asoc)
 /* Cleanup and free up an association. */
 static void sctp_association_destroy(struct sctp_association *asoc)
 {
-	SCTP_ASSERT(asoc->base.dead, "Assoc is not dead", return);
+	if (unlikely(!asoc->base.dead)) {
+		WARN(1, "Attempt to destroy undead association %p!\n", asoc);
+		return;
+	}
 
 	sctp_endpoint_put(asoc->ep);
 	sock_put(asoc->base.sk);
@@ -536,11 +540,8 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
 	struct list_head	*pos;
 	struct sctp_transport	*transport;
 
-	SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_rm_peer:association %p addr: ",
-				 " port: %d\n",
-				 asoc,
-				 (&peer->ipaddr),
-				 ntohs(peer->ipaddr.v4.sin_port));
+	pr_debug("%s: association:%p addr:%pISpc\n",
+		 __func__, asoc, &peer->ipaddr.sa);
 
 	/* If we are to remove the current retran_path, update it
 	 * to the next peer before removing this peer from the list.
@@ -636,12 +637,8 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
 	/* AF_INET and AF_INET6 share common port field. */
 	port = ntohs(addr->v4.sin_port);
 
-	SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_add_peer:association %p addr: ",
-				 " port: %d state:%d\n",
-				 asoc,
-				 addr,
-				 port,
-				 peer_state);
+	pr_debug("%s: association:%p addr:%pISpc state:%d\n", __func__,
+		 asoc, &addr->sa, peer_state);
 
 	/* Set the port if it has not been set yet.  */
 	if (0 == asoc->peer.port)
@@ -708,8 +705,9 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
 	else
 		asoc->pathmtu = peer->pathmtu;
 
-	SCTP_DEBUG_PRINTK("sctp_assoc_add_peer:association %p PMTU set to "
-			  "%d\n", asoc, asoc->pathmtu);
+	pr_debug("%s: association:%p PMTU set to %d\n", __func__, asoc,
+		 asoc->pathmtu);
+
 	peer->pmtu_pending = 0;
 
 	asoc->frag_point = sctp_frag_point(asoc, asoc->pathmtu);
@@ -1349,12 +1347,8 @@ void sctp_assoc_update_retran_path(struct sctp_association *asoc)
 	else
 		t = asoc->peer.retran_path;
 
-	SCTP_DEBUG_PRINTK_IPADDR("sctp_assoc_update_retran_path:association"
-				 " %p addr: ",
-				 " port: %d\n",
-				 asoc,
-				 (&t->ipaddr),
-				 ntohs(t->ipaddr.v4.sin_port));
+	pr_debug("%s: association:%p addr:%pISpc\n", __func__, asoc,
+		 &t->ipaddr.sa);
 }
 
 /* Choose the transport for sending retransmit packet.  */
@@ -1401,8 +1395,8 @@ void sctp_assoc_sync_pmtu(struct sock *sk, struct sctp_association *asoc)
 		asoc->frag_point = sctp_frag_point(asoc, pmtu);
 	}
 
-	SCTP_DEBUG_PRINTK("%s: asoc:%p, pmtu:%d, frag_point:%d\n",
-			  __func__, asoc, asoc->pathmtu, asoc->frag_point);
+	pr_debug("%s: asoc:%p, pmtu:%d, frag_point:%d\n", __func__, asoc,
+		 asoc->pathmtu, asoc->frag_point);
 }
 
 /* Should we send a SACK to update our peer? */
@@ -1454,9 +1448,9 @@ void sctp_assoc_rwnd_increase(struct sctp_association *asoc, unsigned int len)
 		asoc->rwnd_press -= change;
 	}
 
-	SCTP_DEBUG_PRINTK("%s: asoc %p rwnd increased by %d to (%u, %u) "
-			  "- %u\n", __func__, asoc, len, asoc->rwnd,
-			  asoc->rwnd_over, asoc->a_rwnd);
+	pr_debug("%s: asoc:%p rwnd increased by %d to (%u, %u) - %u\n",
+		 __func__, asoc, len, asoc->rwnd, asoc->rwnd_over,
+		 asoc->a_rwnd);
 
 	/* Send a window update SACK if the rwnd has increased by at least the
 	 * minimum of the association's PMTU and half of the receive buffer.
@@ -1465,9 +1459,11 @@ void sctp_assoc_rwnd_increase(struct sctp_association *asoc, unsigned int len)
 	 */
 	if (sctp_peer_needs_update(asoc)) {
 		asoc->a_rwnd = asoc->rwnd;
-		SCTP_DEBUG_PRINTK("%s: Sending window update SACK- asoc: %p "
-				  "rwnd: %u a_rwnd: %u\n", __func__,
-				  asoc, asoc->rwnd, asoc->a_rwnd);
+
+		pr_debug("%s: sending window update SACK- asoc:%p rwnd:%u "
+			 "a_rwnd:%u\n", __func__, asoc, asoc->rwnd,
+			 asoc->a_rwnd);
+
 		sack = sctp_make_sack(asoc);
 		if (!sack)
 			return;
@@ -1489,8 +1485,10 @@ void sctp_assoc_rwnd_decrease(struct sctp_association *asoc, unsigned int len)
 	int rx_count;
 	int over = 0;
 
-	SCTP_ASSERT(asoc->rwnd, "rwnd zero", return);
-	SCTP_ASSERT(!asoc->rwnd_over, "rwnd_over not zero", return);
+	if (unlikely(!asoc->rwnd || asoc->rwnd_over))
+		pr_debug("%s: association:%p has asoc->rwnd:%u, "
+			 "asoc->rwnd_over:%u!\n", __func__, asoc,
+			 asoc->rwnd, asoc->rwnd_over);
 
 	if (asoc->ep->rcvbuf_policy)
 		rx_count = atomic_read(&asoc->rmem_alloc);
@@ -1515,9 +1513,10 @@ void sctp_assoc_rwnd_decrease(struct sctp_association *asoc, unsigned int len)
 		asoc->rwnd_over = len - asoc->rwnd;
 		asoc->rwnd = 0;
 	}
-	SCTP_DEBUG_PRINTK("%s: asoc %p rwnd decreased by %d to (%u, %u, %u)\n",
-			  __func__, asoc, len, asoc->rwnd,
-			  asoc->rwnd_over, asoc->rwnd_press);
+
+	pr_debug("%s: asoc:%p rwnd decreased by %d to (%u, %u, %u)\n",
+		 __func__, asoc, len, asoc->rwnd, asoc->rwnd_over,
+		 asoc->rwnd_press);
 }
 
 /* Build the bind address list for the association based on info from the
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 7135fc0..5780565 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -193,8 +193,9 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
 		msg->expires_at = jiffies +
 				    msecs_to_jiffies(sinfo->sinfo_timetolive);
 		msg->can_abandon = 1;
-		SCTP_DEBUG_PRINTK("%s: msg:%p expires_at: %ld jiffies:%ld\n",
-				  __func__, msg, msg->expires_at, jiffies);
+
+		pr_debug("%s: msg:%p expires_at:%ld jiffies:%ld\n", __func__,
+			 msg, msg->expires_at, jiffies);
 	}
 
 	/* This is the biggest possible DATA chunk that can fit into
diff --git a/net/sctp/debug.c b/net/sctp/debug.c
index ec997cf..f499878 100644
--- a/net/sctp/debug.c
+++ b/net/sctp/debug.c
@@ -47,10 +47,6 @@
 
 #include <net/sctp/sctp.h>
 
-#if SCTP_DEBUG
-int sctp_debug_flag = 1;	/* Initially enable DEBUG */
-#endif	/* SCTP_DEBUG */
-
 /* These are printable forms of Chunk ID's from section 3.1.  */
 static const char *const sctp_cid_tbl[SCTP_NUM_BASE_CHUNK_TYPES] = {
 	"DATA",
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index b26999d..9e3d257 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -249,7 +249,10 @@ static void sctp_endpoint_destroy(struct sctp_endpoint *ep)
 {
 	struct sock *sk;
 
-	SCTP_ASSERT(ep->base.dead, "Endpoint is not dead", return);
+	if (unlikely(!ep->base.dead)) {
+		WARN(1, "Attempt to destroy undead endpoint %p!\n", ep);
+		return;
+	}
 
 	/* Free the digest buffer */
 	kfree(ep->digest);
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 4cfc746..3fa4d85 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -454,8 +454,6 @@ void sctp_icmp_proto_unreachable(struct sock *sk,
 			   struct sctp_association *asoc,
 			   struct sctp_transport *t)
 {
-	SCTP_DEBUG_PRINTK("%s\n",  __func__);
-
 	if (sock_owned_by_user(sk)) {
 		if (timer_pending(&t->proto_unreach_timer))
 			return;
@@ -464,10 +462,12 @@ void sctp_icmp_proto_unreachable(struct sock *sk,
 						jiffies + (HZ/20)))
 				sctp_association_hold(asoc);
 		}
-			
 	} else {
 		struct net *net = sock_net(sk);
 
+		pr_debug("%s: unrecognized next header type "
+			 "encountered!\n", __func__);
+
 		if (del_timer(&t->proto_unreach_timer))
 			sctp_association_put(asoc);
 
diff --git a/net/sctp/inqueue.c b/net/sctp/inqueue.c
index 3221d07..cb25f04 100644
--- a/net/sctp/inqueue.c
+++ b/net/sctp/inqueue.c
@@ -219,10 +219,10 @@ struct sctp_chunk *sctp_inq_pop(struct sctp_inq *queue)
 		chunk->end_of_packet = 1;
 	}
 
-	SCTP_DEBUG_PRINTK("+++sctp_inq_pop+++ chunk %p[%s],"
-			  " length %d, skb->len %d\n",chunk,
-			  sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)),
-			  ntohs(chunk->chunk_hdr->length), chunk->skb->len);
+	pr_debug("+++sctp_inq_pop+++ chunk:%p[%s], length:%d, skb->len:%d\n",
+		 chunk, sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)),
+		 ntohs(chunk->chunk_hdr->length), chunk->skb->len);
+
 	return chunk;
 }
 
@@ -238,4 +238,3 @@ void sctp_inq_set_th_handler(struct sctp_inq *q, work_func_t callback)
 {
 	INIT_WORK(&q->immediate, callback);
 }
-
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index adeaa0e..09ffcc9 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -239,9 +239,8 @@ static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport)
 		fl6.daddr = *rt0->addr;
 	}
 
-	SCTP_DEBUG_PRINTK("%s: skb:%p, len:%d, src:%pI6 dst:%pI6\n",
-			  __func__, skb, skb->len,
-			  &fl6.saddr, &fl6.daddr);
+	pr_debug("%s: skb:%p, len:%d, src:%pI6 dst:%pI6\n", __func__, skb,
+		 skb->len, &fl6.saddr, &fl6.daddr);
 
 	SCTP_INC_STATS(sock_net(sk), SCTP_MIB_OUTSCTPPACKS);
 
@@ -276,7 +275,7 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
 	if (ipv6_addr_type(&daddr->v6.sin6_addr) & IPV6_ADDR_LINKLOCAL)
 		fl6->flowi6_oif = daddr->v6.sin6_scope_id;
 
-	SCTP_DEBUG_PRINTK("%s: DST=%pI6 ", __func__, &fl6->daddr);
+	pr_debug("%s: dst=%pI6 ", __func__, &fl6->daddr);
 
 	if (asoc)
 		fl6->fl6_sport = htons(asoc->base.bind_addr.port);
@@ -284,7 +283,8 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
 	if (saddr) {
 		fl6->saddr = saddr->v6.sin6_addr;
 		fl6->fl6_sport = saddr->v6.sin6_port;
-		SCTP_DEBUG_PRINTK("SRC=%pI6 - ", &fl6->saddr);
+
+		pr_debug("src=%pI6 - ", &fl6->saddr);
 	}
 
 	dst = ip6_dst_lookup_flow(sk, fl6, NULL, false);
@@ -348,13 +348,16 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
 out:
 	if (!IS_ERR_OR_NULL(dst)) {
 		struct rt6_info *rt;
+
 		rt = (struct rt6_info *)dst;
 		t->dst = dst;
-		SCTP_DEBUG_PRINTK("rt6_dst:%pI6 rt6_src:%pI6\n",
-			&rt->rt6i_dst.addr, &fl6->saddr);
+
+		pr_debug("rt6_dst:%pI6 rt6_src:%pI6\n", &rt->rt6i_dst.addr,
+			 &fl6->saddr);
 	} else {
 		t->dst = NULL;
-		SCTP_DEBUG_PRINTK("NO ROUTE\n");
+
+		pr_debug("no route\n");
 	}
 }
 
@@ -377,7 +380,7 @@ static void sctp_v6_get_saddr(struct sctp_sock *sk,
 	struct flowi6 *fl6 = &fl->u.ip6;
 	union sctp_addr *saddr = &t->saddr;
 
-	SCTP_DEBUG_PRINTK("%s: asoc:%p dst:%p\n", __func__, t->asoc, t->dst);
+	pr_debug("%s: asoc:%p dst:%p\n", __func__, t->asoc, t->dst);
 
 	if (t->dst) {
 		saddr->v6.sin6_family = AF_INET6;
diff --git a/net/sctp/output.c b/net/sctp/output.c
index bbef4a7..a46d1eb 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -93,8 +93,7 @@ struct sctp_packet *sctp_packet_config(struct sctp_packet *packet,
 {
 	struct sctp_chunk *chunk = NULL;
 
-	SCTP_DEBUG_PRINTK("%s: packet:%p vtag:0x%x\n", __func__,
-			  packet, vtag);
+	pr_debug("%s: packet:%p vtag:0x%x\n", __func__, packet, vtag);
 
 	packet->vtag = vtag;
 
@@ -119,8 +118,7 @@ struct sctp_packet *sctp_packet_init(struct sctp_packet *packet,
 	struct sctp_association *asoc = transport->asoc;
 	size_t overhead;
 
-	SCTP_DEBUG_PRINTK("%s: packet:%p transport:%p\n", __func__,
-			  packet, transport);
+	pr_debug("%s: packet:%p transport:%p\n", __func__, packet, transport);
 
 	packet->transport = transport;
 	packet->source_port = sport;
@@ -145,7 +143,7 @@ void sctp_packet_free(struct sctp_packet *packet)
 {
 	struct sctp_chunk *chunk, *tmp;
 
-	SCTP_DEBUG_PRINTK("%s: packet:%p\n", __func__, packet);
+	pr_debug("%s: packet:%p\n", __func__, packet);
 
 	list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) {
 		list_del_init(&chunk->list);
@@ -167,8 +165,7 @@ sctp_xmit_t sctp_packet_transmit_chunk(struct sctp_packet *packet,
 	sctp_xmit_t retval;
 	int error = 0;
 
-	SCTP_DEBUG_PRINTK("%s: packet:%p chunk:%p\n", __func__,
-			  packet, chunk);
+	pr_debug("%s: packet:%p chunk:%p\n", __func__, packet, chunk);
 
 	switch ((retval = (sctp_packet_append_chunk(packet, chunk)))) {
 	case SCTP_XMIT_PMTU_FULL:
@@ -334,8 +331,7 @@ sctp_xmit_t sctp_packet_append_chunk(struct sctp_packet *packet,
 {
 	sctp_xmit_t retval = SCTP_XMIT_OK;
 
-	SCTP_DEBUG_PRINTK("%s: packet:%p chunk:%p\n", __func__, packet,
-			  chunk);
+	pr_debug("%s: packet:%p chunk:%p\n", __func__, packet, chunk);
 
 	/* Data chunks are special.  Before seeing what else we can
 	 * bundle into this packet, check to see if we are allowed to
@@ -402,7 +398,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	unsigned char *auth = NULL;	/* pointer to auth in skb data */
 	__u32 cksum_buf_len = sizeof(struct sctphdr);
 
-	SCTP_DEBUG_PRINTK("%s: packet:%p\n", __func__, packet);
+	pr_debug("%s: packet:%p\n", __func__, packet);
 
 	/* Do NOT generate a chunkless packet. */
 	if (list_empty(&packet->chunk_list))
@@ -472,7 +468,9 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	 *
 	 * [This whole comment explains WORD_ROUND() below.]
 	 */
-	SCTP_DEBUG_PRINTK("***sctp_transmit_packet***\n");
+
+	pr_debug("***sctp_transmit_packet***\n");
+
 	list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) {
 		list_del_init(&chunk->list);
 		if (sctp_chunk_is_data(chunk)) {
@@ -505,16 +503,13 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 		memcpy(skb_put(nskb, chunk->skb->len),
 			       chunk->skb->data, chunk->skb->len);
 
-		SCTP_DEBUG_PRINTK("%s %p[%s] %s 0x%x, %s %d, %s %d, %s %d\n",
-				  "*** Chunk", chunk,
-				  sctp_cname(SCTP_ST_CHUNK(
-					  chunk->chunk_hdr->type)),
-				  chunk->has_tsn ? "TSN" : "No TSN",
-				  chunk->has_tsn ?
-				  ntohl(chunk->subh.data_hdr->tsn) : 0,
-				  "length", ntohs(chunk->chunk_hdr->length),
-				  "chunk->skb->len", chunk->skb->len,
-				  "rtt_in_progress", chunk->rtt_in_progress);
+		pr_debug("*** Chunk:%p[%s] %s 0x%x, length:%d, chunk->skb->len:%d, "
+			 "rtt_in_progress:%d\n", chunk,
+			 sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)),
+			 chunk->has_tsn ? "TSN" : "No TSN",
+			 chunk->has_tsn ? ntohl(chunk->subh.data_hdr->tsn) : 0,
+			 ntohs(chunk->chunk_hdr->length), chunk->skb->len,
+			 chunk->rtt_in_progress);
 
 		/*
 		 * If this is a control chunk, this is our last
@@ -606,8 +601,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 		}
 	}
 
-	SCTP_DEBUG_PRINTK("***sctp_transmit_packet*** skb len %d\n",
-			  nskb->len);
+	pr_debug("***sctp_transmit_packet*** skb->len:%d\n", nskb->len);
 
 	nskb->local_df = packet->ipfragok;
 	(*tp->af_specific->sctp_xmit)(nskb, tp);
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index be35e2d..511b3b3 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -299,10 +299,10 @@ int sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk)
 	struct net *net = sock_net(q->asoc->base.sk);
 	int error = 0;
 
-	SCTP_DEBUG_PRINTK("sctp_outq_tail(%p, %p[%s])\n",
-			  q, chunk, chunk && chunk->chunk_hdr ?
-			  sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type))
-			  : "Illegal Chunk");
+	pr_debug("%s: outq:%p, chunk:%p[%s]\n", __func__, q, chunk,
+		 chunk && chunk->chunk_hdr ?
+		 sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)) :
+		 "illegal chunk");
 
 	/* If it is data, queue it up, otherwise, send it
 	 * immediately.
@@ -328,10 +328,10 @@ int sctp_outq_tail(struct sctp_outq *q, struct sctp_chunk *chunk)
 			break;
 
 		default:
-			SCTP_DEBUG_PRINTK("outqueueing (%p, %p[%s])\n",
-			  q, chunk, chunk && chunk->chunk_hdr ?
-			  sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type))
-			  : "Illegal Chunk");
+			pr_debug("%s: outqueueing: outq:%p, chunk:%p[%s])\n",
+				 __func__, q, chunk, chunk && chunk->chunk_hdr ?
+				 sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)) :
+				 "illegal chunk");
 
 			sctp_outq_tail_data(q, chunk);
 			if (chunk->chunk_hdr->flags & SCTP_DATA_UNORDERED)
@@ -460,14 +460,10 @@ void sctp_retransmit_mark(struct sctp_outq *q,
 		}
 	}
 
-	SCTP_DEBUG_PRINTK("%s: transport: %p, reason: %d, "
-			  "cwnd: %d, ssthresh: %d, flight_size: %d, "
-			  "pba: %d\n", __func__,
-			  transport, reason,
-			  transport->cwnd, transport->ssthresh,
-			  transport->flight_size,
-			  transport->partial_bytes_acked);
-
+	pr_debug("%s: transport:%p, reason:%d, cwnd:%d, ssthresh:%d, "
+		 "flight_size:%d, pba:%d\n", __func__, transport, reason,
+		 transport->cwnd, transport->ssthresh, transport->flight_size,
+		 transport->partial_bytes_acked);
 }
 
 /* Mark all the eligible packets on a transport for retransmission and force
@@ -1014,19 +1010,13 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 				sctp_transport_burst_limited(transport);
 			}
 
-			SCTP_DEBUG_PRINTK("sctp_outq_flush(%p, %p[%s]), ",
-					  q, chunk,
-					  chunk && chunk->chunk_hdr ?
-					  sctp_cname(SCTP_ST_CHUNK(
-						  chunk->chunk_hdr->type))
-					  : "Illegal Chunk");
-
-			SCTP_DEBUG_PRINTK("TX TSN 0x%x skb->head "
-					"%p skb->users %d.\n",
-					ntohl(chunk->subh.data_hdr->tsn),
-					chunk->skb ?chunk->skb->head : NULL,
-					chunk->skb ?
-					atomic_read(&chunk->skb->users) : -1);
+			pr_debug("%s: outq:%p, chunk:%p[%s], tx-tsn:0x%x skb->head:%p "
+				 "skb->users:%d\n",
+				 __func__, q, chunk, chunk && chunk->chunk_hdr ?
+				 sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)) :
+				 "illegal chunk", ntohl(chunk->subh.data_hdr->tsn),
+				 chunk->skb ? chunk->skb->head : NULL, chunk->skb ?
+				 atomic_read(&chunk->skb->users) : -1);
 
 			/* Add the chunk to the packet.  */
 			status = sctp_packet_transmit_chunk(packet, chunk, 0);
@@ -1038,10 +1028,10 @@ static int sctp_outq_flush(struct sctp_outq *q, int rtx_timeout)
 				/* We could not append this chunk, so put
 				 * the chunk back on the output queue.
 				 */
-				SCTP_DEBUG_PRINTK("sctp_outq_flush: could "
-					"not transmit TSN: 0x%x, status: %d\n",
-					ntohl(chunk->subh.data_hdr->tsn),
-					status);
+				pr_debug("%s: could not transmit tsn:0x%x, status:%d\n",
+					 __func__, ntohl(chunk->subh.data_hdr->tsn),
+					 status);
+
 				sctp_outq_head_data(q, chunk);
 				goto sctp_flush_out;
 				break;
@@ -1284,11 +1274,10 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_chunk *chunk)
 
 	sctp_generate_fwdtsn(q, sack_ctsn);
 
-	SCTP_DEBUG_PRINTK("%s: sack Cumulative TSN Ack is 0x%x.\n",
-			  __func__, sack_ctsn);
-	SCTP_DEBUG_PRINTK("%s: Cumulative TSN Ack of association, "
-			  "%p is 0x%x. Adv peer ack point: 0x%x\n",
-			  __func__, asoc, ctsn, asoc->adv_peer_ack_point);
+	pr_debug("%s: sack cumulative tsn ack:0x%x\n", __func__, sack_ctsn);
+	pr_debug("%s: cumulative tsn ack of assoc:%p is 0x%x, "
+		 "advertised peer ack point:0x%x\n", __func__, asoc, ctsn,
+		 asoc->adv_peer_ack_point);
 
 	/* See if all chunks are acked.
 	 * Make sure the empty queue handler will get run later.
@@ -1304,7 +1293,7 @@ int sctp_outq_sack(struct sctp_outq *q, struct sctp_chunk *chunk)
 			goto finish;
 	}
 
-	SCTP_DEBUG_PRINTK("sack queue is empty.\n");
+	pr_debug("%s: sack queue is empty\n", __func__);
 finish:
 	return q->empty;
 }
@@ -1348,7 +1337,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 
 	/* These state variables are for coherent debug output. --xguo */
 
-#if SCTP_DEBUG
+#ifdef CONFIG_SCTP_DBG_TSNS
 	__u32 dbg_ack_tsn = 0;	/* An ACKed TSN range starts here... */
 	__u32 dbg_last_ack_tsn = 0;  /* ...and finishes here.	     */
 	__u32 dbg_kept_tsn = 0;	/* An un-ACKed range starts here...  */
@@ -1359,7 +1348,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 	 * -1: We need to initialize.
 	 */
 	int dbg_prt_state = -1;
-#endif /* SCTP_DEBUG */
+#endif /* CONFIG_SCTP_DBG_TSNS */
 
 	sack_ctsn = ntohl(sack->cum_tsn_ack);
 
@@ -1483,7 +1472,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 				list_add_tail(lchunk, &tlist);
 			}
 
-#if SCTP_DEBUG
+#ifdef CONFIG_SCTP_DBG_TSNS
 			switch (dbg_prt_state) {
 			case 0:	/* last TSN was ACKed */
 				if (dbg_last_ack_tsn + 1 == tsn) {
@@ -1497,42 +1486,39 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 					/* Display the end of the
 					 * current range.
 					 */
-					SCTP_DEBUG_PRINTK_CONT("-%08x",
-							       dbg_last_ack_tsn);
+					pr_cont("-%08x", dbg_last_ack_tsn);
 				}
 
 				/* Start a new range.  */
-				SCTP_DEBUG_PRINTK_CONT(",%08x", tsn);
+				pr_cont(",%08x", tsn);
 				dbg_ack_tsn = tsn;
 				break;
 
 			case 1:	/* The last TSN was NOT ACKed. */
 				if (dbg_last_kept_tsn != dbg_kept_tsn) {
 					/* Display the end of current range. */
-					SCTP_DEBUG_PRINTK_CONT("-%08x",
-							       dbg_last_kept_tsn);
+					pr_cont("-%08x", dbg_last_kept_tsn);
 				}
 
-				SCTP_DEBUG_PRINTK_CONT("\n");
-
+				pr_cont("\n");
 				/* FALL THROUGH... */
 			default:
 				/* This is the first-ever TSN we examined.  */
 				/* Start a new range of ACK-ed TSNs.  */
-				SCTP_DEBUG_PRINTK("ACKed: %08x", tsn);
+				pr_debug("ACKed: %08x", tsn);
+
 				dbg_prt_state = 0;
 				dbg_ack_tsn = tsn;
 			}
 
 			dbg_last_ack_tsn = tsn;
-#endif /* SCTP_DEBUG */
+#endif /* CONFIG_SCTP_DBG_TSNS */
 
 		} else {
 			if (tchunk->tsn_gap_acked) {
-				SCTP_DEBUG_PRINTK("%s: Receiver reneged on "
-						  "data TSN: 0x%x\n",
-						  __func__,
-						  tsn);
+				pr_debug("%s: receiver reneged on data TSN:0x%x\n",
+					 __func__, tsn);
+
 				tchunk->tsn_gap_acked = 0;
 
 				if (tchunk->transport)
@@ -1552,7 +1538,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 
 			list_add_tail(lchunk, &tlist);
 
-#if SCTP_DEBUG
+#ifdef CONFIG_SCTP_DBG_TSNS
 			/* See the above comments on ACK-ed TSNs. */
 			switch (dbg_prt_state) {
 			case 1:
@@ -1560,50 +1546,47 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 					break;
 
 				if (dbg_last_kept_tsn != dbg_kept_tsn)
-					SCTP_DEBUG_PRINTK_CONT("-%08x",
-							       dbg_last_kept_tsn);
+					pr_cont("-%08x", dbg_last_kept_tsn);
 
-				SCTP_DEBUG_PRINTK_CONT(",%08x", tsn);
+				pr_cont(",%08x", tsn);
 				dbg_kept_tsn = tsn;
 				break;
 
 			case 0:
 				if (dbg_last_ack_tsn != dbg_ack_tsn)
-					SCTP_DEBUG_PRINTK_CONT("-%08x",
-							       dbg_last_ack_tsn);
-				SCTP_DEBUG_PRINTK_CONT("\n");
+					pr_cont("-%08x", dbg_last_ack_tsn);
 
+				pr_cont("\n");
 				/* FALL THROUGH... */
 			default:
-				SCTP_DEBUG_PRINTK("KEPT: %08x",tsn);
+				pr_debug("KEPT: %08x", tsn);
+
 				dbg_prt_state = 1;
 				dbg_kept_tsn = tsn;
 			}
 
 			dbg_last_kept_tsn = tsn;
-#endif /* SCTP_DEBUG */
+#endif /* CONFIG_SCTP_DBG_TSNS */
 		}
 	}
 
-#if SCTP_DEBUG
+#ifdef CONFIG_SCTP_DBG_TSNS
 	/* Finish off the last range, displaying its ending TSN.  */
 	switch (dbg_prt_state) {
 	case 0:
-		if (dbg_last_ack_tsn != dbg_ack_tsn) {
-			SCTP_DEBUG_PRINTK_CONT("-%08x\n", dbg_last_ack_tsn);
-		} else {
-			SCTP_DEBUG_PRINTK_CONT("\n");
-		}
-	break;
-
+		if (dbg_last_ack_tsn != dbg_ack_tsn)
+			pr_cont("-%08x\n", dbg_last_ack_tsn);
+		else
+			pr_cont("\n");
+		break;
 	case 1:
-		if (dbg_last_kept_tsn != dbg_kept_tsn) {
-			SCTP_DEBUG_PRINTK_CONT("-%08x\n", dbg_last_kept_tsn);
-		} else {
-			SCTP_DEBUG_PRINTK_CONT("\n");
-		}
+		if (dbg_last_kept_tsn != dbg_kept_tsn)
+			pr_cont("-%08x\n", dbg_last_kept_tsn);
+		else
+			pr_cont("\n");
+		break;
 	}
-#endif /* SCTP_DEBUG */
+#endif /* CONFIG_SCTP_DBG_TSNS */
 	if (transport) {
 		if (bytes_acked) {
 			struct sctp_association *asoc = transport->asoc;
@@ -1676,9 +1659,9 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 			    !list_empty(&tlist) &&
 			    (sack_ctsn+2 == q->asoc->next_tsn) &&
 			    q->asoc->state < SCTP_STATE_SHUTDOWN_PENDING) {
-				SCTP_DEBUG_PRINTK("%s: SACK received for zero "
-						  "window probe: %u\n",
-						  __func__, sack_ctsn);
+				pr_debug("%s: sack received for zero window "
+					 "probe:%u\n", __func__, sack_ctsn);
+
 				q->asoc->overall_error_count = 0;
 				transport->error_count = 0;
 			}
@@ -1739,10 +1722,8 @@ static void sctp_mark_missing(struct sctp_outq *q,
 						count_of_newacks, tsn)) {
 				chunk->tsn_missing_report++;
 
-				SCTP_DEBUG_PRINTK(
-					"%s: TSN 0x%x missing counter: %d\n",
-					__func__, tsn,
-					chunk->tsn_missing_report);
+				pr_debug("%s: tsn:0x%x missing counter:%d\n",
+					 __func__, tsn, chunk->tsn_missing_report);
 			}
 		}
 		/*
@@ -1762,11 +1743,10 @@ static void sctp_mark_missing(struct sctp_outq *q,
 		if (do_fast_retransmit)
 			sctp_retransmit(q, transport, SCTP_RTXR_FAST_RTX);
 
-		SCTP_DEBUG_PRINTK("%s: transport: %p, cwnd: %d, "
-				  "ssthresh: %d, flight_size: %d, pba: %d\n",
-				  __func__, transport, transport->cwnd,
-				  transport->ssthresh, transport->flight_size,
-				  transport->partial_bytes_acked);
+		pr_debug("%s: transport:%p, cwnd:%d, ssthresh:%d, "
+			 "flight_size:%d, pba:%d\n",  __func__, transport,
+			 transport->cwnd, transport->ssthresh,
+			 transport->flight_size, transport->partial_bytes_acked);
 	}
 }
 
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 1de49c8..4a17494d 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -451,8 +451,8 @@ static void sctp_v4_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
 		fl4->fl4_sport = saddr->v4.sin_port;
 	}
 
-	SCTP_DEBUG_PRINTK("%s: DST:%pI4, SRC:%pI4 - ",
-			  __func__, &fl4->daddr, &fl4->saddr);
+	pr_debug("%s: dst:%pI4, src:%pI4 - ", __func__, &fl4->daddr,
+		 &fl4->saddr);
 
 	rt = ip_route_output_key(sock_net(sk), fl4);
 	if (!IS_ERR(rt))
@@ -513,10 +513,10 @@ out_unlock:
 out:
 	t->dst = dst;
 	if (dst)
-		SCTP_DEBUG_PRINTK("rt_dst:%pI4, rt_src:%pI4\n",
-				  &fl4->daddr, &fl4->saddr);
+		pr_debug("rt_dst:%pI4, rt_src:%pI4\n",
+			 &fl4->daddr, &fl4->saddr);
 	else
-		SCTP_DEBUG_PRINTK("NO ROUTE\n");
+		pr_debug("no route\n");
 }
 
 /* For v4, the source address is cached in the route entry(dst). So no need
@@ -604,9 +604,9 @@ static void sctp_addr_wq_timeout_handler(unsigned long arg)
 	spin_lock_bh(&net->sctp.addr_wq_lock);
 
 	list_for_each_entry_safe(addrw, temp, &net->sctp.addr_waitq, list) {
-		SCTP_DEBUG_PRINTK_IPADDR("sctp_addrwq_timo_handler: the first ent in wq %p is ",
-		    " for cmd %d at entry %p\n", &net->sctp.addr_waitq, &addrw->a, addrw->state,
-		    addrw);
+		pr_debug("%s: the first ent in wq:%p is addr:%pISc for cmd:%d at "
+			 "entry:%p\n", __func__, &net->sctp.addr_waitq, &addrw->a.sa,
+			 addrw->state, addrw);
 
 #if IS_ENABLED(CONFIG_IPV6)
 		/* Now we send an ASCONF for each association */
@@ -623,8 +623,10 @@ static void sctp_addr_wq_timeout_handler(unsigned long arg)
 			    addrw->state == SCTP_ADDR_NEW) {
 				unsigned long timeo_val;
 
-				SCTP_DEBUG_PRINTK("sctp_timo_handler: this is on DAD, trying %d sec later\n",
-				    SCTP_ADDRESS_TICK_DELAY);
+				pr_debug("%s: this is on DAD, trying %d sec "
+					 "later\n", __func__,
+					 SCTP_ADDRESS_TICK_DELAY);
+
 				timeo_val = jiffies;
 				timeo_val += msecs_to_jiffies(SCTP_ADDRESS_TICK_DELAY);
 				mod_timer(&net->sctp.addr_wq_timer, timeo_val);
@@ -641,7 +643,7 @@ static void sctp_addr_wq_timeout_handler(unsigned long arg)
 				continue;
 			sctp_bh_lock_sock(sk);
 			if (sctp_asconf_mgmt(sp, addrw) < 0)
-				SCTP_DEBUG_PRINTK("sctp_addrwq_timo_handler: sctp_asconf_mgmt failed\n");
+				pr_debug("%s: sctp_asconf_mgmt failed\n", __func__);
 			sctp_bh_unlock_sock(sk);
 		}
 #if IS_ENABLED(CONFIG_IPV6)
@@ -707,9 +709,10 @@ void sctp_addr_wq_mgmt(struct net *net, struct sctp_sockaddr_entry *addr, int cm
 	addrw = sctp_addr_wq_lookup(net, addr);
 	if (addrw) {
 		if (addrw->state != cmd) {
-			SCTP_DEBUG_PRINTK_IPADDR("sctp_addr_wq_mgmt offsets existing entry for %d ",
-			    " in wq %p\n", addrw->state, &addrw->a,
-			    &net->sctp.addr_waitq);
+			pr_debug("%s: offsets existing entry for %d, addr:%pISc "
+				 "in wq:%p\n", __func__, addrw->state, &addrw->a.sa,
+				 &net->sctp.addr_waitq);
+
 			list_del(&addrw->list);
 			kfree(addrw);
 		}
@@ -725,8 +728,9 @@ void sctp_addr_wq_mgmt(struct net *net, struct sctp_sockaddr_entry *addr, int cm
 	}
 	addrw->state = cmd;
 	list_add_tail(&addrw->list, &net->sctp.addr_waitq);
-	SCTP_DEBUG_PRINTK_IPADDR("sctp_addr_wq_mgmt add new entry for cmd:%d ",
-	    " in wq %p\n", addrw->state, &addrw->a, &net->sctp.addr_waitq);
+
+	pr_debug("%s: add new entry for cmd:%d, addr:%pISc in wq:%p\n",
+		 __func__, addrw->state, &addrw->a.sa, &net->sctp.addr_waitq);
 
 	if (!timer_pending(&net->sctp.addr_wq_timer)) {
 		timeo_val = jiffies;
@@ -952,15 +956,14 @@ static inline int sctp_v4_xmit(struct sk_buff *skb,
 {
 	struct inet_sock *inet = inet_sk(skb->sk);
 
-	SCTP_DEBUG_PRINTK("%s: skb:%p, len:%d, src:%pI4, dst:%pI4\n",
-			  __func__, skb, skb->len,
-			  &transport->fl.u.ip4.saddr,
-			  &transport->fl.u.ip4.daddr);
+	pr_debug("%s: skb:%p, len:%d, src:%pI4, dst:%pI4\n", __func__, skb,
+		 skb->len, &transport->fl.u.ip4.saddr, &transport->fl.u.ip4.daddr);
 
 	inet->pmtudisc = transport->param_flags & SPP_PMTUD_ENABLE ?
 			 IP_PMTUDISC_DO : IP_PMTUDISC_DONT;
 
 	SCTP_INC_STATS(sock_net(&inet->sk), SCTP_MIB_OUTSCTPPACKS);
+
 	return ip_queue_xmit(skb, &transport->fl);
 }
 
@@ -1321,9 +1324,8 @@ static __init int sctp_init(void)
 	int max_share;
 	int order;
 
-	/* SCTP_DEBUG sanity check. */
-	if (!sctp_sanity_check())
-		goto out;
+	BUILD_BUG_ON(sizeof(struct sctp_ulpevent) >
+		     sizeof(((struct sk_buff *) 0)->cb));
 
 	/* Allocate bind_bucket and chunk caches. */
 	status = -ENOBUFS;
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index dd71f1f..362ae6e 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -741,7 +741,8 @@ struct sctp_chunk *sctp_make_sack(const struct sctp_association *asoc)
 
 	memset(gabs, 0, sizeof(gabs));
 	ctsn = sctp_tsnmap_get_ctsn(map);
-	SCTP_DEBUG_PRINTK("sackCTSNAck sent:  0x%x.\n", ctsn);
+
+	pr_debug("%s: sackCTSNAck sent:0x%x\n", __func__, ctsn);
 
 	/* How much room is needed in the chunk? */
 	num_gabs = sctp_tsnmap_num_gabs(map, gabs);
@@ -1287,10 +1288,8 @@ struct sctp_chunk *sctp_chunkify(struct sk_buff *skb,
 
 	if (!retval)
 		goto nodata;
-
-	if (!sk) {
-		SCTP_DEBUG_PRINTK("chunkifying skb %p w/o an sk\n", skb);
-	}
+	if (!sk)
+		pr_debug("%s: chunkifying skb:%p w/o an sk\n", __func__, skb);
 
 	INIT_LIST_HEAD(&retval->list);
 	retval->skb		= skb;
@@ -2191,8 +2190,9 @@ static sctp_ierror_t sctp_verify_param(struct net *net,
 		break;
 fallthrough:
 	default:
-		SCTP_DEBUG_PRINTK("Unrecognized param: %d for chunk %d.\n",
-				ntohs(param.p->type), cid);
+		pr_debug("%s: unrecognized param:%d for chunk:%d\n",
+			 __func__, ntohs(param.p->type), cid);
+
 		retval = sctp_process_unk_param(asoc, param, chunk, err_chunk);
 		break;
 	}
@@ -2516,7 +2516,7 @@ do_addr_param:
 		break;
 
 	case SCTP_PARAM_HOST_NAME_ADDRESS:
-		SCTP_DEBUG_PRINTK("unimplemented SCTP_HOST_NAME_ADDRESS\n");
+		pr_debug("%s: unimplemented SCTP_HOST_NAME_ADDRESS\n", __func__);
 		break;
 
 	case SCTP_PARAM_SUPPORTED_ADDRESS_TYPES:
@@ -2662,8 +2662,8 @@ fall_through:
 		 * called prior to this routine.  Simply log the error
 		 * here.
 		 */
-		SCTP_DEBUG_PRINTK("Ignoring param: %d for association %p.\n",
-				  ntohs(param.p->type), asoc);
+		pr_debug("%s: ignoring param:%d for association:%p.\n",
+			 __func__, ntohs(param.p->type), asoc);
 		break;
 	}
 
@@ -2805,7 +2805,10 @@ struct sctp_chunk *sctp_make_asconf_update_ip(struct sctp_association *asoc,
 			totallen += paramlen;
 			totallen += addr_param_len;
 			del_pickup = 1;
-			SCTP_DEBUG_PRINTK("mkasconf_update_ip: picked same-scope del_pending addr, totallen for all addresses is %d\n", totallen);
+
+			pr_debug("%s: picked same-scope del_pending addr, "
+				 "totallen for all addresses is %d\n",
+				 __func__, totallen);
 		}
 	}
 
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index ff91f47..cf6f845 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -257,7 +257,7 @@ void sctp_generate_t3_rtx_event(unsigned long peer)
 
 	sctp_bh_lock_sock(asoc->base.sk);
 	if (sock_owned_by_user(asoc->base.sk)) {
-		SCTP_DEBUG_PRINTK("%s:Sock is busy.\n", __func__);
+		pr_debug("%s: sock is busy\n", __func__);
 
 		/* Try again later.  */
 		if (!mod_timer(&transport->T3_rtx_timer, jiffies + (HZ/20)))
@@ -297,9 +297,8 @@ static void sctp_generate_timeout_event(struct sctp_association *asoc,
 
 	sctp_bh_lock_sock(asoc->base.sk);
 	if (sock_owned_by_user(asoc->base.sk)) {
-		SCTP_DEBUG_PRINTK("%s:Sock is busy: timer %d\n",
-				  __func__,
-				  timeout_type);
+		pr_debug("%s: sock is busy: timer %d\n", __func__,
+			 timeout_type);
 
 		/* Try again later.  */
 		if (!mod_timer(&asoc->timers[timeout_type], jiffies + (HZ/20)))
@@ -377,7 +376,7 @@ void sctp_generate_heartbeat_event(unsigned long data)
 
 	sctp_bh_lock_sock(asoc->base.sk);
 	if (sock_owned_by_user(asoc->base.sk)) {
-		SCTP_DEBUG_PRINTK("%s:Sock is busy.\n", __func__);
+		pr_debug("%s: sock is busy\n", __func__);
 
 		/* Try again later.  */
 		if (!mod_timer(&transport->hb_timer, jiffies + (HZ/20)))
@@ -415,7 +414,7 @@ void sctp_generate_proto_unreach_event(unsigned long data)
 	
 	sctp_bh_lock_sock(asoc->base.sk);
 	if (sock_owned_by_user(asoc->base.sk)) {
-		SCTP_DEBUG_PRINTK("%s:Sock is busy.\n", __func__);
+		pr_debug("%s: sock is busy\n", __func__);
 
 		/* Try again later.  */
 		if (!mod_timer(&transport->proto_unreach_timer,
@@ -521,11 +520,9 @@ static void sctp_do_8_2_transport_strike(sctp_cmd_seq_t *commands,
 
 	if (transport->state != SCTP_INACTIVE &&
 	    (transport->error_count > transport->pathmaxrxt)) {
-		SCTP_DEBUG_PRINTK_IPADDR("transport_strike:association %p",
-					 " transport IP: port:%d failed.\n",
-					 asoc,
-					 (&transport->ipaddr),
-					 ntohs(transport->ipaddr.v4.sin_port));
+		pr_debug("%s: association:%p transport addr:%pISpc failed\n",
+			 __func__, asoc, &transport->ipaddr.sa);
+
 		sctp_assoc_control_transport(asoc, transport,
 					     SCTP_TRANSPORT_DOWN,
 					     SCTP_FAILED_THRESHOLD);
@@ -804,8 +801,7 @@ static void sctp_cmd_new_state(sctp_cmd_seq_t *cmds,
 
 	asoc->state = state;
 
-	SCTP_DEBUG_PRINTK("sctp_cmd_new_state: asoc %p[%s]\n",
-			  asoc, sctp_state_tbl[state]);
+	pr_debug("%s: asoc:%p[%s]\n", __func__, asoc, sctp_state_tbl[state]);
 
 	if (sctp_style(sk, TCP)) {
 		/* Change the sk->sk_state of a TCP-style socket that has
@@ -1017,15 +1013,11 @@ static void sctp_cmd_t1_timer_update(struct sctp_association *asoc,
 			asoc->timeouts[timer] = asoc->max_init_timeo;
 		}
 		asoc->init_cycle++;
-		SCTP_DEBUG_PRINTK(
-			"T1 %s Timeout adjustment"
-			" init_err_counter: %d"
-			" cycle: %d"
-			" timeout: %ld\n",
-			name,
-			asoc->init_err_counter,
-			asoc->init_cycle,
-			asoc->timeouts[timer]);
+
+		pr_debug("%s: T1[%s] timeout adjustment init_err_counter:%d"
+			 " cycle:%d timeout:%ld\n", __func__, name,
+			 asoc->init_err_counter, asoc->init_cycle,
+			 asoc->timeouts[timer]);
 	}
 
 }
@@ -1080,23 +1072,19 @@ static void sctp_cmd_send_asconf(struct sctp_association *asoc)
  * main flow of sctp_do_sm() to keep attention focused on the real
  * functionality there.
  */
-#define DEBUG_PRE \
-	SCTP_DEBUG_PRINTK("sctp_do_sm prefn: " \
-			  "ep %p, %s, %s, asoc %p[%s], %s\n", \
-			  ep, sctp_evttype_tbl[event_type], \
-			  (*debug_fn)(subtype), asoc, \
-			  sctp_state_tbl[state], state_fn->name)
-
-#define DEBUG_POST \
-	SCTP_DEBUG_PRINTK("sctp_do_sm postfn: " \
-			  "asoc %p, status: %s\n", \
-			  asoc, sctp_status_tbl[status])
-
-#define DEBUG_POST_SFX \
-	SCTP_DEBUG_PRINTK("sctp_do_sm post sfx: error %d, asoc %p[%s]\n", \
-			  error, asoc, \
-			  sctp_state_tbl[(asoc && sctp_id2assoc(ep->base.sk, \
-			  sctp_assoc2id(asoc)))?asoc->state:SCTP_STATE_CLOSED])
+#define debug_pre_sfn() \
+	pr_debug("%s[pre-fn]: ep:%p, %s, %s, asoc:%p[%s], %s\n", __func__, \
+		 ep, sctp_evttype_tbl[event_type], (*debug_fn)(subtype),   \
+		 asoc, sctp_state_tbl[state], state_fn->name)
+
+#define debug_post_sfn() \
+	pr_debug("%s[post-fn]: asoc:%p, status:%s\n", __func__, asoc, \
+		 sctp_status_tbl[status])
+
+#define debug_post_sfx() \
+	pr_debug("%s[post-sfx]: error:%d, asoc:%p[%s]\n", __func__, error, \
+		 asoc, sctp_state_tbl[(asoc && sctp_id2assoc(ep->base.sk, \
+		 sctp_assoc2id(asoc))) ? asoc->state : SCTP_STATE_CLOSED])
 
 /*
  * This is the master state machine processing function.
@@ -1116,7 +1104,6 @@ int sctp_do_sm(struct net *net, sctp_event_t event_type, sctp_subtype_t subtype,
 	sctp_disposition_t status;
 	int error = 0;
 	typedef const char *(printfn_t)(sctp_subtype_t);
-
 	static printfn_t *table[] = {
 		NULL, sctp_cname, sctp_tname, sctp_oname, sctp_pname,
 	};
@@ -1129,21 +1116,18 @@ int sctp_do_sm(struct net *net, sctp_event_t event_type, sctp_subtype_t subtype,
 
 	sctp_init_cmd_seq(&commands);
 
-	DEBUG_PRE;
+	debug_pre_sfn();
 	status = (*state_fn->fn)(net, ep, asoc, subtype, event_arg, &commands);
-	DEBUG_POST;
+	debug_post_sfn();
 
 	error = sctp_side_effects(event_type, subtype, state,
 				  ep, asoc, event_arg, status,
 				  &commands, gfp);
-	DEBUG_POST_SFX;
+	debug_post_sfx();
 
 	return error;
 }
 
-#undef DEBUG_PRE
-#undef DEBUG_POST
-
 /*****************************************************************
  * This the master state function side effect processing function.
  *****************************************************************/
@@ -1172,9 +1156,9 @@ static int sctp_side_effects(sctp_event_t event_type, sctp_subtype_t subtype,
 
 	switch (status) {
 	case SCTP_DISPOSITION_DISCARD:
-		SCTP_DEBUG_PRINTK("Ignored sctp protocol event - state %d, "
-				  "event_type %d, event_id %d\n",
-				  state, event_type, subtype.chunk);
+		pr_debug("%s: ignored sctp protocol event - state:%d, "
+			 "event_type:%d, event_id:%d\n", __func__, state,
+			 event_type, subtype.chunk);
 		break;
 
 	case SCTP_DISPOSITION_NOMEM:
@@ -1425,18 +1409,18 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 
 		case SCTP_CMD_CHUNK_ULP:
 			/* Send a chunk to the sockets layer.  */
-			SCTP_DEBUG_PRINTK("sm_sideff: %s %p, %s %p.\n",
-					  "chunk_up:", cmd->obj.chunk,
-					  "ulpq:", &asoc->ulpq);
+			pr_debug("%s: sm_sideff: chunk_up:%p, ulpq:%p\n",
+				 __func__, cmd->obj.chunk, &asoc->ulpq);
+
 			sctp_ulpq_tail_data(&asoc->ulpq, cmd->obj.chunk,
 					    GFP_ATOMIC);
 			break;
 
 		case SCTP_CMD_EVENT_ULP:
 			/* Send a notification to the sockets layer.  */
-			SCTP_DEBUG_PRINTK("sm_sideff: %s %p, %s %p.\n",
-					  "event_up:",cmd->obj.ulpevent,
-					  "ulpq:",&asoc->ulpq);
+			pr_debug("%s: sm_sideff: event_up:%p, ulpq:%p\n",
+				 __func__, cmd->obj.ulpevent, &asoc->ulpq);
+
 			sctp_ulpq_tail_event(&asoc->ulpq, cmd->obj.ulpevent);
 			break;
 
@@ -1601,7 +1585,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 			break;
 
 		case SCTP_CMD_REPORT_BAD_TAG:
-			SCTP_DEBUG_PRINTK("vtag mismatch!\n");
+			pr_debug("%s: vtag mismatch!\n", __func__);
 			break;
 
 		case SCTP_CMD_STRIKE:
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index b3d1868..f6b7109 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -1179,9 +1179,9 @@ sctp_disposition_t sctp_sf_backbeat_8_3(struct net *net,
 	/* Check if the timestamp looks valid.  */
 	if (time_after(hbinfo->sent_at, jiffies) ||
 	    time_after(jiffies, hbinfo->sent_at + max_interval)) {
-		SCTP_DEBUG_PRINTK("%s: HEARTBEAT ACK with invalid timestamp "
-				  "received for transport: %p\n",
-				   __func__, link);
+		pr_debug("%s: HEARTBEAT ACK with invalid timestamp received "
+			 "for transport:%p\n", __func__, link);
+
 		return SCTP_DISPOSITION_DISCARD;
 	}
 
@@ -2562,7 +2562,8 @@ static sctp_disposition_t sctp_stop_t1_and_abort(struct net *net,
 					   const struct sctp_association *asoc,
 					   struct sctp_transport *transport)
 {
-	SCTP_DEBUG_PRINTK("ABORT received (INIT).\n");
+	pr_debug("%s: ABORT received (INIT)\n", __func__);
+
 	sctp_add_cmd_sf(commands, SCTP_CMD_NEW_STATE,
 			SCTP_STATE(SCTP_STATE_CLOSED));
 	SCTP_INC_STATS(net, SCTP_MIB_ABORTEDS);
@@ -2572,6 +2573,7 @@ static sctp_disposition_t sctp_stop_t1_and_abort(struct net *net,
 	/* CMD_INIT_FAILED will DELETE_TCB. */
 	sctp_add_cmd_sf(commands, SCTP_CMD_INIT_FAILED,
 			SCTP_PERR(error));
+
 	return SCTP_DISPOSITION_ABORT;
 }
 
@@ -2637,8 +2639,9 @@ sctp_disposition_t sctp_sf_do_9_2_shutdown(struct net *net,
 	ctsn = ntohl(sdh->cum_tsn_ack);
 
 	if (TSN_lt(ctsn, asoc->ctsn_ack_point)) {
-		SCTP_DEBUG_PRINTK("ctsn %x\n", ctsn);
-		SCTP_DEBUG_PRINTK("ctsn_ack_point %x\n", asoc->ctsn_ack_point);
+		pr_debug("%s: ctsn:%x, ctsn_ack_point:%x\n", __func__, ctsn,
+			 asoc->ctsn_ack_point);
+
 		return SCTP_DISPOSITION_DISCARD;
 	}
 
@@ -2721,8 +2724,9 @@ sctp_disposition_t sctp_sf_do_9_2_shut_ctsn(struct net *net,
 	ctsn = ntohl(sdh->cum_tsn_ack);
 
 	if (TSN_lt(ctsn, asoc->ctsn_ack_point)) {
-		SCTP_DEBUG_PRINTK("ctsn %x\n", ctsn);
-		SCTP_DEBUG_PRINTK("ctsn_ack_point %x\n", asoc->ctsn_ack_point);
+		pr_debug("%s: ctsn:%x, ctsn_ack_point:%x\n", __func__, ctsn,
+			 asoc->ctsn_ack_point);
+
 		return SCTP_DISPOSITION_DISCARD;
 	}
 
@@ -3174,8 +3178,9 @@ sctp_disposition_t sctp_sf_eat_sack_6_2(struct net *net,
 	 *     Point indicates an out-of-order SACK.
 	 */
 	if (TSN_lt(ctsn, asoc->ctsn_ack_point)) {
-		SCTP_DEBUG_PRINTK("ctsn %x\n", ctsn);
-		SCTP_DEBUG_PRINTK("ctsn_ack_point %x\n", asoc->ctsn_ack_point);
+		pr_debug("%s: ctsn:%x, ctsn_ack_point:%x\n", __func__, ctsn,
+			 asoc->ctsn_ack_point);
+
 		return SCTP_DISPOSITION_DISCARD;
 	}
 
@@ -3859,7 +3864,7 @@ sctp_disposition_t sctp_sf_eat_fwd_tsn(struct net *net,
 	skb_pull(chunk->skb, len);
 
 	tsn = ntohl(fwdtsn_hdr->new_cum_tsn);
-	SCTP_DEBUG_PRINTK("%s: TSN 0x%x.\n", __func__, tsn);
+	pr_debug("%s: TSN 0x%x\n", __func__, tsn);
 
 	/* The TSN is too high--silently discard the chunk and count on it
 	 * getting retransmitted later.
@@ -3927,7 +3932,7 @@ sctp_disposition_t sctp_sf_eat_fwd_tsn_fast(
 	skb_pull(chunk->skb, len);
 
 	tsn = ntohl(fwdtsn_hdr->new_cum_tsn);
-	SCTP_DEBUG_PRINTK("%s: TSN 0x%x.\n", __func__, tsn);
+	pr_debug("%s: TSN 0x%x\n", __func__, tsn);
 
 	/* The TSN is too high--silently discard the chunk and count on it
 	 * getting retransmitted later.
@@ -4166,7 +4171,7 @@ sctp_disposition_t sctp_sf_unk_chunk(struct net *net,
 	struct sctp_chunk *err_chunk;
 	sctp_chunkhdr_t *hdr;
 
-	SCTP_DEBUG_PRINTK("Processing the unknown chunk id %d.\n", type.chunk);
+	pr_debug("%s: processing unknown chunk id:%d\n", __func__, type.chunk);
 
 	if (!sctp_vtag_verify(unk_chunk, asoc))
 		return sctp_sf_pdiscard(net, ep, asoc, type, arg, commands);
@@ -4256,7 +4261,8 @@ sctp_disposition_t sctp_sf_discard_chunk(struct net *net,
 		return sctp_sf_violation_chunklen(net, ep, asoc, type, arg,
 						  commands);
 
-	SCTP_DEBUG_PRINTK("Chunk %d is discarded\n", type.chunk);
+	pr_debug("%s: chunk:%d is discarded\n", __func__, type.chunk);
+
 	return SCTP_DISPOSITION_DISCARD;
 }
 
@@ -5184,7 +5190,9 @@ sctp_disposition_t sctp_sf_ignore_primitive(
 	void *arg,
 	sctp_cmd_seq_t *commands)
 {
-	SCTP_DEBUG_PRINTK("Primitive type %d is ignored.\n", type.primitive);
+	pr_debug("%s: primitive type:%d is ignored\n", __func__,
+		 type.primitive);
+
 	return SCTP_DISPOSITION_DISCARD;
 }
 
@@ -5379,7 +5387,9 @@ sctp_disposition_t sctp_sf_ignore_other(struct net *net,
 					void *arg,
 					sctp_cmd_seq_t *commands)
 {
-	SCTP_DEBUG_PRINTK("The event other type %d is ignored\n", type.other);
+	pr_debug("%s: the event other type:%d is ignored\n",
+		 __func__, type.other);
+
 	return SCTP_DISPOSITION_DISCARD;
 }
 
@@ -5527,7 +5537,8 @@ sctp_disposition_t sctp_sf_t1_init_timer_expire(struct net *net,
 	struct sctp_bind_addr *bp;
 	int attempts = asoc->init_err_counter + 1;
 
-	SCTP_DEBUG_PRINTK("Timer T1 expired (INIT).\n");
+	pr_debug("%s: timer T1 expired (INIT)\n", __func__);
+
 	SCTP_INC_STATS(net, SCTP_MIB_T1_INIT_EXPIREDS);
 
 	if (attempts <= asoc->max_init_attempts) {
@@ -5546,9 +5557,10 @@ sctp_disposition_t sctp_sf_t1_init_timer_expire(struct net *net,
 
 		sctp_add_cmd_sf(commands, SCTP_CMD_REPLY, SCTP_CHUNK(repl));
 	} else {
-		SCTP_DEBUG_PRINTK("Giving up on INIT, attempts: %d"
-				  " max_init_attempts: %d\n",
-				  attempts, asoc->max_init_attempts);
+		pr_debug("%s: giving up on INIT, attempts:%d "
+			 "max_init_attempts:%d\n", __func__, attempts,
+			 asoc->max_init_attempts);
+
 		sctp_add_cmd_sf(commands, SCTP_CMD_SET_SK_ERR,
 				SCTP_ERROR(ETIMEDOUT));
 		sctp_add_cmd_sf(commands, SCTP_CMD_INIT_FAILED,
@@ -5588,7 +5600,8 @@ sctp_disposition_t sctp_sf_t1_cookie_timer_expire(struct net *net,
 	struct sctp_chunk *repl = NULL;
 	int attempts = asoc->init_err_counter + 1;
 
-	SCTP_DEBUG_PRINTK("Timer T1 expired (COOKIE-ECHO).\n");
+	pr_debug("%s: timer T1 expired (COOKIE-ECHO)\n", __func__);
+
 	SCTP_INC_STATS(net, SCTP_MIB_T1_COOKIE_EXPIREDS);
 
 	if (attempts <= asoc->max_init_attempts) {
@@ -5636,7 +5649,8 @@ sctp_disposition_t sctp_sf_t2_timer_expire(struct net *net,
 {
 	struct sctp_chunk *reply = NULL;
 
-	SCTP_DEBUG_PRINTK("Timer T2 expired.\n");
+	pr_debug("%s: timer T2 expired\n", __func__);
+
 	SCTP_INC_STATS(net, SCTP_MIB_T2_SHUTDOWN_EXPIREDS);
 
 	((struct sctp_association *)asoc)->shutdown_retries++;
@@ -5777,7 +5791,8 @@ sctp_disposition_t sctp_sf_t5_timer_expire(struct net *net,
 {
 	struct sctp_chunk *reply = NULL;
 
-	SCTP_DEBUG_PRINTK("Timer T5 expired.\n");
+	pr_debug("%s: timer T5 expired\n", __func__);
+
 	SCTP_INC_STATS(net, SCTP_MIB_T5_SHUTDOWN_GUARD_EXPIREDS);
 
 	reply = sctp_make_abort(asoc, NULL, 0);
@@ -5892,7 +5907,8 @@ sctp_disposition_t sctp_sf_timer_ignore(struct net *net,
 					void *arg,
 					sctp_cmd_seq_t *commands)
 {
-	SCTP_DEBUG_PRINTK("Timer %d ignored.\n", type.chunk);
+	pr_debug("%s: timer %d ignored\n", __func__, type.chunk);
+
 	return SCTP_DISPOSITION_CONSUME;
 }
 
@@ -6102,7 +6118,7 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 	skb_pull(chunk->skb, sizeof(sctp_datahdr_t));
 
 	tsn = ntohl(data_hdr->tsn);
-	SCTP_DEBUG_PRINTK("eat_data: TSN 0x%x.\n", tsn);
+	pr_debug("%s: TSN 0x%x\n", __func__, tsn);
 
 	/* ASSERT:  Now skb->data is really the user data.  */
 
@@ -6179,12 +6195,12 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 		 */
 		if (sctp_tsnmap_has_gap(map) &&
 		    (sctp_tsnmap_get_ctsn(map) + 1) == tsn) {
-			SCTP_DEBUG_PRINTK("Reneging for tsn:%u\n", tsn);
+			pr_debug("%s: reneging for tsn:%u\n", __func__, tsn);
 			deliver = SCTP_CMD_RENEGE;
 		} else {
-			SCTP_DEBUG_PRINTK("Discard tsn: %u len: %Zd, "
-					  "rwnd: %d\n", tsn, datalen,
-					  asoc->rwnd);
+			pr_debug("%s: discard tsn:%u len:%zu, rwnd:%d\n",
+				 __func__, tsn, datalen, asoc->rwnd);
+
 			return SCTP_IERROR_IGNORE_TSN;
 		}
 	}
@@ -6199,7 +6215,8 @@ static int sctp_eat_data(const struct sctp_association *asoc,
 	if (*sk->sk_prot_creator->memory_pressure) {
 		if (sctp_tsnmap_has_gap(map) &&
 	           (sctp_tsnmap_get_ctsn(map) + 1) == tsn) {
-			SCTP_DEBUG_PRINTK("Under Pressure! Reneging for tsn:%u\n", tsn);
+			pr_debug("%s: under pressure, reneging for tsn:%u\n",
+				 __func__, tsn);
 			deliver = SCTP_CMD_RENEGE;
 		 }
 	}
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 66fcdcf..d5c6a28 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -281,8 +281,8 @@ static int sctp_bind(struct sock *sk, struct sockaddr *addr, int addr_len)
 
 	sctp_lock_sock(sk);
 
-	SCTP_DEBUG_PRINTK("sctp_bind(sk: %p, addr: %p, addr_len: %d)\n",
-			  sk, addr, addr_len);
+	pr_debug("%s: sk:%p, addr:%p, addr_len:%d\n", __func__, sk,
+		 addr, addr_len);
 
 	/* Disallow binding twice. */
 	if (!sctp_sk(sk)->ep->base.bind_addr.port)
@@ -342,19 +342,15 @@ static int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
 	/* Common sockaddr verification. */
 	af = sctp_sockaddr_af(sp, addr, len);
 	if (!af) {
-		SCTP_DEBUG_PRINTK("sctp_do_bind(sk: %p, newaddr: %p, len: %d) EINVAL\n",
-				  sk, addr, len);
+		pr_debug("%s: sk:%p, newaddr:%p, len:%d EINVAL\n",
+			 __func__, sk, addr, len);
 		return -EINVAL;
 	}
 
 	snum = ntohs(addr->v4.sin_port);
 
-	SCTP_DEBUG_PRINTK_IPADDR("sctp_do_bind(sk: %p, new addr: ",
-				 ", port: %d, new port: %d, len: %d)\n",
-				 sk,
-				 addr,
-				 bp->port, snum,
-				 len);
+	pr_debug("%s: sk:%p, new addr:%pISc, port:%d, new port:%d, len:%d\n",
+		 __func__, sk, &addr->sa, bp->port, snum, len);
 
 	/* PF specific bind() address verification. */
 	if (!sp->pf->bind_verify(sp, addr))
@@ -368,9 +364,8 @@ static int sctp_do_bind(struct sock *sk, union sctp_addr *addr, int len)
 		if (!snum)
 			snum = bp->port;
 		else if (snum != bp->port) {
-			SCTP_DEBUG_PRINTK("sctp_do_bind:"
-				  " New port %d does not match existing port "
-				  "%d.\n", snum, bp->port);
+			pr_debug("%s: new port %d doesn't match existing port "
+				 "%d\n", __func__, snum, bp->port);
 			return -EINVAL;
 		}
 	}
@@ -468,8 +463,8 @@ static int sctp_bindx_add(struct sock *sk, struct sockaddr *addrs, int addrcnt)
 	struct sockaddr *sa_addr;
 	struct sctp_af *af;
 
-	SCTP_DEBUG_PRINTK("sctp_bindx_add (sk: %p, addrs: %p, addrcnt: %d)\n",
-			  sk, addrs, addrcnt);
+	pr_debug("%s: sk:%p, addrs:%p, addrcnt:%d\n", __func__, sk,
+		 addrs, addrcnt);
 
 	addr_buf = addrs;
 	for (cnt = 0; cnt < addrcnt; cnt++) {
@@ -535,11 +530,10 @@ static int sctp_send_asconf_add_ip(struct sock		*sk,
 	sp = sctp_sk(sk);
 	ep = sp->ep;
 
-	SCTP_DEBUG_PRINTK("%s: (sk: %p, addrs: %p, addrcnt: %d)\n",
-			  __func__, sk, addrs, addrcnt);
+	pr_debug("%s: sk:%p, addrs:%p, addrcnt:%d\n",
+		 __func__, sk, addrs, addrcnt);
 
 	list_for_each_entry(asoc, &ep->asocs, asocs) {
-
 		if (!asoc->peer.asconf_capable)
 			continue;
 
@@ -646,8 +640,8 @@ static int sctp_bindx_rem(struct sock *sk, struct sockaddr *addrs, int addrcnt)
 	union sctp_addr *sa_addr;
 	struct sctp_af *af;
 
-	SCTP_DEBUG_PRINTK("sctp_bindx_rem (sk: %p, addrs: %p, addrcnt: %d)\n",
-			  sk, addrs, addrcnt);
+	pr_debug("%s: sk:%p, addrs:%p, addrcnt:%d\n",
+		 __func__, sk, addrs, addrcnt);
 
 	addr_buf = addrs;
 	for (cnt = 0; cnt < addrcnt; cnt++) {
@@ -740,8 +734,8 @@ static int sctp_send_asconf_del_ip(struct sock		*sk,
 	sp = sctp_sk(sk);
 	ep = sp->ep;
 
-	SCTP_DEBUG_PRINTK("%s: (sk: %p, addrs: %p, addrcnt: %d)\n",
-			  __func__, sk, addrs, addrcnt);
+	pr_debug("%s: sk:%p, addrs:%p, addrcnt:%d\n",
+		 __func__, sk, addrs, addrcnt);
 
 	list_for_each_entry(asoc, &ep->asocs, asocs) {
 
@@ -808,9 +802,11 @@ static int sctp_send_asconf_del_ip(struct sock		*sk,
 				sin6 = (struct sockaddr_in6 *)addrs;
 				asoc->asconf_addr_del_pending->v6.sin6_addr = sin6->sin6_addr;
 			}
-			SCTP_DEBUG_PRINTK_IPADDR("send_asconf_del_ip: keep the last address asoc: %p ",
-			    " at %p\n", asoc, asoc->asconf_addr_del_pending,
-			    asoc->asconf_addr_del_pending);
+
+			pr_debug("%s: keep the last address asoc:%p %pISc at %p\n",
+				 __func__, asoc, &asoc->asconf_addr_del_pending->sa,
+				 asoc->asconf_addr_del_pending);
+
 			asoc->src_out_of_asoc_ok = 1;
 			stored = 1;
 			goto skip_mkasconf;
@@ -972,8 +968,8 @@ static int sctp_setsockopt_bindx(struct sock* sk,
 	void *addr_buf;
 	struct sctp_af *af;
 
-	SCTP_DEBUG_PRINTK("sctp_setsockopt_bindx: sk %p addrs %p"
-			  " addrs_size %d opt %d\n", sk, addrs, addrs_size, op);
+	pr_debug("%s: sk:%p addrs:%p addrs_size:%d opt:%d\n",
+		 __func__, sk, addrs, addrs_size, op);
 
 	if (unlikely(addrs_size <= 0))
 		return -EINVAL;
@@ -1231,10 +1227,9 @@ static int __sctp_connect(struct sock* sk,
 	asoc = NULL;
 
 out_free:
+	pr_debug("%s: took out_free path with asoc:%p kaddrs:%p err:%d\n",
+		 __func__, asoc, kaddrs, err);
 
-	SCTP_DEBUG_PRINTK("About to exit __sctp_connect() free asoc: %p"
-			  " kaddrs: %p err: %d\n",
-			  asoc, kaddrs, err);
 	if (asoc) {
 		/* sctp_primitive_ASSOCIATE may have added this association
 		 * To the hash table, try to unhash it, just in case, its a noop
@@ -1316,8 +1311,8 @@ static int __sctp_setsockopt_connectx(struct sock* sk,
 	int err = 0;
 	struct sockaddr *kaddrs;
 
-	SCTP_DEBUG_PRINTK("%s - sk %p addrs %p addrs_size %d\n",
-			  __func__, sk, addrs, addrs_size);
+	pr_debug("%s: sk:%p addrs:%p addrs_size:%d\n",
+		 __func__, sk, addrs, addrs_size);
 
 	if (unlikely(addrs_size <= 0))
 		return -EINVAL;
@@ -1468,7 +1463,7 @@ static void sctp_close(struct sock *sk, long timeout)
 	struct list_head *pos, *temp;
 	unsigned int data_was_unread;
 
-	SCTP_DEBUG_PRINTK("sctp_close(sk: 0x%p, timeout:%ld)\n", sk, timeout);
+	pr_debug("%s: sk:%p, timeout:%ld\n", __func__, sk, timeout);
 
 	sctp_lock_sock(sk);
 	sk->sk_shutdown = SHUTDOWN_MASK;
@@ -1594,14 +1589,12 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 	struct sctp_datamsg *datamsg;
 	int msg_flags = msg->msg_flags;
 
-	SCTP_DEBUG_PRINTK("sctp_sendmsg(sk: %p, msg: %p, msg_len: %zu)\n",
-			  sk, msg, msg_len);
-
 	err = 0;
 	sp = sctp_sk(sk);
 	ep = sp->ep;
 
-	SCTP_DEBUG_PRINTK("Using endpoint: %p.\n", ep);
+	pr_debug("%s: sk:%p, msg:%p, msg_len:%zu ep:%p\n", __func__, sk,
+		 msg, msg_len, ep);
 
 	/* We cannot send a message over a TCP-style listening socket. */
 	if (sctp_style(sk, TCP) && sctp_sstate(sk, LISTENING)) {
@@ -1611,9 +1604,8 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 
 	/* Parse out the SCTP CMSGs.  */
 	err = sctp_msghdr_parse(msg, &cmsgs);
-
 	if (err) {
-		SCTP_DEBUG_PRINTK("msghdr parse err = %x\n", err);
+		pr_debug("%s: msghdr parse err:%x\n", __func__, err);
 		goto out_nounlock;
 	}
 
@@ -1645,8 +1637,8 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 		associd = sinfo->sinfo_assoc_id;
 	}
 
-	SCTP_DEBUG_PRINTK("msg_len: %zu, sinfo_flags: 0x%x\n",
-			  msg_len, sinfo_flags);
+	pr_debug("%s: msg_len:%zu, sinfo_flags:0x%x\n", __func__,
+		 msg_len, sinfo_flags);
 
 	/* SCTP_EOF or SCTP_ABORT cannot be set on a TCP-style socket. */
 	if (sctp_style(sk, TCP) && (sinfo_flags & (SCTP_EOF | SCTP_ABORT))) {
@@ -1675,7 +1667,7 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 
 	transport = NULL;
 
-	SCTP_DEBUG_PRINTK("About to look up association.\n");
+	pr_debug("%s: about to look up association\n", __func__);
 
 	sctp_lock_sock(sk);
 
@@ -1705,7 +1697,7 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 	}
 
 	if (asoc) {
-		SCTP_DEBUG_PRINTK("Just looked up association: %p.\n", asoc);
+		pr_debug("%s: just looked up association:%p\n", __func__, asoc);
 
 		/* We cannot send a message on a TCP-style SCTP_SS_ESTABLISHED
 		 * socket that has an association in CLOSED state. This can
@@ -1718,8 +1710,9 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 		}
 
 		if (sinfo_flags & SCTP_EOF) {
-			SCTP_DEBUG_PRINTK("Shutting down association: %p\n",
-					  asoc);
+			pr_debug("%s: shutting down association:%p\n",
+				 __func__, asoc);
+
 			sctp_primitive_SHUTDOWN(net, asoc, NULL);
 			err = 0;
 			goto out_unlock;
@@ -1732,7 +1725,9 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 				goto out_unlock;
 			}
 
-			SCTP_DEBUG_PRINTK("Aborting association: %p\n", asoc);
+			pr_debug("%s: aborting association:%p\n",
+				 __func__, asoc);
+
 			sctp_primitive_ABORT(net, asoc, chunk);
 			err = 0;
 			goto out_unlock;
@@ -1741,7 +1736,7 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 
 	/* Do we need to create the association?  */
 	if (!asoc) {
-		SCTP_DEBUG_PRINTK("There is no association yet.\n");
+		pr_debug("%s: there is no association yet\n", __func__);
 
 		if (sinfo_flags & (SCTP_EOF | SCTP_ABORT)) {
 			err = -EINVAL;
@@ -1840,7 +1835,7 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 	}
 
 	/* ASSERT: we have a valid association at this point.  */
-	SCTP_DEBUG_PRINTK("We have a valid association.\n");
+	pr_debug("%s: we have a valid association\n", __func__);
 
 	if (!sinfo) {
 		/* If the user didn't specify SNDRCVINFO, make up one with
@@ -1909,7 +1904,8 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 		err = sctp_primitive_ASSOCIATE(net, asoc, NULL);
 		if (err < 0)
 			goto out_free;
-		SCTP_DEBUG_PRINTK("We associated primitively.\n");
+
+		pr_debug("%s: we associated primitively\n", __func__);
 	}
 
 	/* Break the message into multiple chunks of maximum size. */
@@ -1936,17 +1932,15 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 	 */
 	err = sctp_primitive_SEND(net, asoc, datamsg);
 	/* Did the lower layer accept the chunk? */
-	if (err)
+	if (err) {
 		sctp_datamsg_free(datamsg);
-	else
-		sctp_datamsg_put(datamsg);
+		goto out_free;
+	}
 
-	SCTP_DEBUG_PRINTK("We sent primitively.\n");
+	pr_debug("%s: we sent primitively\n", __func__);
 
-	if (err)
-		goto out_free;
-	else
-		err = msg_len;
+	sctp_datamsg_put(datamsg);
+	err = msg_len;
 
 	/* If we are already past ASSOCIATE, the lower
 	 * layers are responsible for association cleanup.
@@ -2041,10 +2035,9 @@ static int sctp_recvmsg(struct kiocb *iocb, struct sock *sk,
 	int err = 0;
 	int skb_len;
 
-	SCTP_DEBUG_PRINTK("sctp_recvmsg(%s: %p, %s: %p, %s: %zd, %s: %d, %s: "
-			  "0x%x, %s: %p)\n", "sk", sk, "msghdr", msg,
-			  "len", len, "knoblauch", noblock,
-			  "flags", flags, "addr_len", addr_len);
+	pr_debug("%s: sk:%p, msghdr:%p, len:%zd, noblock:%d, flags:0x%x, "
+		 "addr_len:%p)\n", __func__, sk, msg, len, noblock, flags,
+		 addr_len);
 
 	sctp_lock_sock(sk);
 
@@ -3086,7 +3079,7 @@ static int sctp_setsockopt_peer_primary_addr(struct sock *sk, char __user *optva
 
 	err = sctp_send_asconf(asoc, chunk);
 
-	SCTP_DEBUG_PRINTK("We set peer primary addr primitively.\n");
+	pr_debug("%s: we set peer primary addr primitively\n", __func__);
 
 	return err;
 }
@@ -3561,8 +3554,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname,
 {
 	int retval = 0;
 
-	SCTP_DEBUG_PRINTK("sctp_setsockopt(sk: %p... optname: %d)\n",
-			  sk, optname);
+	pr_debug("%s: sk:%p, optname:%d\n", __func__, sk, optname);
 
 	/* I can hardly begin to describe how wrong this is.  This is
 	 * so broken as to be worse than useless.  The API draft
@@ -3724,8 +3716,8 @@ static int sctp_connect(struct sock *sk, struct sockaddr *addr,
 
 	sctp_lock_sock(sk);
 
-	SCTP_DEBUG_PRINTK("%s - sk: %p, sockaddr: %p, addr_len: %d\n",
-			  __func__, sk, addr, addr_len);
+	pr_debug("%s: sk:%p, sockaddr:%p, addr_len:%d\n", __func__, sk,
+		 addr, addr_len);
 
 	/* Validate addr_len before calling common connect/connectx routine. */
 	af = sctp_get_af_specific(addr->sa_family);
@@ -3855,7 +3847,7 @@ static int sctp_init_sock(struct sock *sk)
 	struct net *net = sock_net(sk);
 	struct sctp_sock *sp;
 
-	SCTP_DEBUG_PRINTK("sctp_init_sock(sk: %p)\n", sk);
+	pr_debug("%s: sk:%p\n", __func__, sk);
 
 	sp = sctp_sk(sk);
 
@@ -3990,7 +3982,7 @@ static void sctp_destroy_sock(struct sock *sk)
 {
 	struct sctp_sock *sp;
 
-	SCTP_DEBUG_PRINTK("sctp_destroy_sock(sk: %p)\n", sk);
+	pr_debug("%s: sk:%p\n", __func__, sk);
 
 	/* Release our hold on the endpoint. */
 	sp = sctp_sk(sk);
@@ -4123,9 +4115,9 @@ static int sctp_getsockopt_sctp_status(struct sock *sk, int len,
 		goto out;
 	}
 
-	SCTP_DEBUG_PRINTK("sctp_getsockopt_sctp_status(%d): %d %d %d\n",
-			  len, status.sstat_state, status.sstat_rwnd,
-			  status.sstat_assoc_id);
+	pr_debug("%s: len:%d, state:%d, rwnd:%d, assoc_id:%d\n",
+		 __func__, len, status.sstat_state, status.sstat_rwnd,
+		 status.sstat_assoc_id);
 
 	if (copy_to_user(optval, &status, len)) {
 		retval = -EFAULT;
@@ -4333,8 +4325,8 @@ static int sctp_getsockopt_peeloff(struct sock *sk, int len, char __user *optval
 		return PTR_ERR(newfile);
 	}
 
-	SCTP_DEBUG_PRINTK("%s: sk: %p newsk: %p sd: %d\n",
-			  __func__, sk, newsock->sk, retval);
+	pr_debug("%s: sk:%p, newsk:%p, sd:%d\n", __func__, sk, newsock->sk,
+		 retval);
 
 	/* Return the fd mapped to the new socket.  */
 	if (put_user(len, optlen)) {
@@ -4467,7 +4459,7 @@ static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len,
 		trans = sctp_addr_id2transport(sk, &params.spp_address,
 					       params.spp_assoc_id);
 		if (!trans) {
-			SCTP_DEBUG_PRINTK("Failed no transport\n");
+			pr_debug("%s: failed no transport\n", __func__);
 			return -EINVAL;
 		}
 	}
@@ -4478,7 +4470,7 @@ static int sctp_getsockopt_peer_addr_params(struct sock *sk, int len,
 	 */
 	asoc = sctp_id2assoc(sk, params.spp_assoc_id);
 	if (!asoc && params.spp_assoc_id && sctp_style(sk, UDP)) {
-		SCTP_DEBUG_PRINTK("Failed no association\n");
+		pr_debug("%s: failed no association\n", __func__);
 		return -EINVAL;
 	}
 
@@ -5698,8 +5690,7 @@ static int sctp_getsockopt_assoc_stats(struct sock *sk, int len,
 	if (put_user(len, optlen))
 		return -EFAULT;
 
-	SCTP_DEBUG_PRINTK("sctp_getsockopt_assoc_stat(%d): %d\n",
-			  len, sas.sas_assoc_id);
+	pr_debug("%s: len:%d, assoc_id:%d\n", __func__, len, sas.sas_assoc_id);
 
 	if (copy_to_user(optval, &sas, len))
 		return -EFAULT;
@@ -5713,8 +5704,7 @@ static int sctp_getsockopt(struct sock *sk, int level, int optname,
 	int retval = 0;
 	int len;
 
-	SCTP_DEBUG_PRINTK("sctp_getsockopt(sk: %p... optname: %d)\n",
-			  sk, optname);
+	pr_debug("%s: sk:%p, optname:%d\n", __func__, sk, optname);
 
 	/* I can hardly begin to describe how wrong this is.  This is
 	 * so broken as to be worse than useless.  The API draft
@@ -5894,7 +5884,8 @@ static long sctp_get_port_local(struct sock *sk, union sctp_addr *addr)
 
 	snum = ntohs(addr->v4.sin_port);
 
-	SCTP_DEBUG_PRINTK("sctp_get_port() begins, snum=%d\n", snum);
+	pr_debug("%s: begins, snum:%d\n", __func__, snum);
+
 	sctp_local_bh_disable();
 
 	if (snum == 0) {
@@ -5960,7 +5951,8 @@ pp_found:
 		int reuse = sk->sk_reuse;
 		struct sock *sk2;
 
-		SCTP_DEBUG_PRINTK("sctp_get_port() found a possible match\n");
+		pr_debug("%s: found a possible match\n", __func__);
+
 		if (pp->fastreuse && sk->sk_reuse &&
 			sk->sk_state != SCTP_SS_LISTENING)
 			goto success;
@@ -5990,7 +5982,8 @@ pp_found:
 				goto fail_unlock;
 			}
 		}
-		SCTP_DEBUG_PRINTK("sctp_get_port(): Found a match\n");
+
+		pr_debug("%s: found a match\n", __func__);
 	}
 pp_not_found:
 	/* If there was a hash table miss, create a new port.  */
@@ -6479,8 +6472,8 @@ static struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
 
 	timeo = sock_rcvtimeo(sk, noblock);
 
-	SCTP_DEBUG_PRINTK("Timeout: timeo: %ld, MAX: %ld.\n",
-			  timeo, MAX_SCHEDULE_TIMEOUT);
+	pr_debug("%s: timeo:%ld, max:%ld\n", __func__, timeo,
+		 MAX_SCHEDULE_TIMEOUT);
 
 	do {
 		/* Again only user level code calls this function,
@@ -6611,8 +6604,8 @@ static int sctp_wait_for_sndbuf(struct sctp_association *asoc, long *timeo_p,
 	long current_timeo = *timeo_p;
 	DEFINE_WAIT(wait);
 
-	SCTP_DEBUG_PRINTK("wait_for_sndbuf: asoc=%p, timeo=%ld, msg_len=%zu\n",
-			  asoc, (long)(*timeo_p), msg_len);
+	pr_debug("%s: asoc:%p, timeo:%ld, msg_len:%zu\n", __func__, asoc,
+		 *timeo_p, msg_len);
 
 	/* Increment the association's refcnt.  */
 	sctp_association_hold(asoc);
@@ -6718,8 +6711,7 @@ static int sctp_wait_for_connect(struct sctp_association *asoc, long *timeo_p)
 	long current_timeo = *timeo_p;
 	DEFINE_WAIT(wait);
 
-	SCTP_DEBUG_PRINTK("%s: asoc=%p, timeo=%ld\n", __func__, asoc,
-			  (long)(*timeo_p));
+	pr_debug("%s: asoc:%p, timeo:%ld\n", __func__, asoc, *timeo_p);
 
 	/* Increment the association's refcnt.  */
 	sctp_association_hold(asoc);
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 5d3c71b..bdbbc3f 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -176,7 +176,10 @@ static void sctp_transport_destroy_rcu(struct rcu_head *head)
  */
 static void sctp_transport_destroy(struct sctp_transport *transport)
 {
-	SCTP_ASSERT(transport->dead, "Transport is not dead", return);
+	if (unlikely(!transport->dead)) {
+		WARN(1, "Attempt to destroy undead transport %p!\n", transport);
+		return;
+	}
 
 	call_rcu(&transport->rcu, sctp_transport_destroy_rcu);
 
@@ -317,11 +320,9 @@ void sctp_transport_put(struct sctp_transport *transport)
 /* Update transport's RTO based on the newly calculated RTT. */
 void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
 {
-	/* Check for valid transport.  */
-	SCTP_ASSERT(tp, "NULL transport", return);
-
-	/* We should not be doing any RTO updates unless rto_pending is set.  */
-	SCTP_ASSERT(tp->rto_pending, "rto_pending not set", return);
+	if (unlikely(!tp->rto_pending))
+		/* We should not be doing any RTO updates unless rto_pending is set.  */
+		pr_debug("%s: rto_pending not set on transport %p!\n", __func__, tp);
 
 	if (tp->rttvar || tp->srtt) {
 		struct net *net = sock_net(tp->asoc->base.sk);
@@ -377,9 +378,8 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
 	 */
 	tp->rto_pending = 0;
 
-	SCTP_DEBUG_PRINTK("%s: transport: %p, rtt: %d, srtt: %d "
-			  "rttvar: %d, rto: %ld\n", __func__,
-			  tp, rtt, tp->srtt, tp->rttvar, tp->rto);
+	pr_debug("%s: transport:%p, rtt:%d, srtt:%d rttvar:%d, rto:%ld\n",
+		 __func__, tp, rtt, tp->srtt, tp->rttvar, tp->rto);
 }
 
 /* This routine updates the transport's cwnd and partial_bytes_acked
@@ -433,12 +433,11 @@ void sctp_transport_raise_cwnd(struct sctp_transport *transport,
 			cwnd += pmtu;
 		else
 			cwnd += bytes_acked;
-		SCTP_DEBUG_PRINTK("%s: SLOW START: transport: %p, "
-				  "bytes_acked: %d, cwnd: %d, ssthresh: %d, "
-				  "flight_size: %d, pba: %d\n",
-				  __func__,
-				  transport, bytes_acked, cwnd,
-				  ssthresh, flight_size, pba);
+
+		pr_debug("%s: slow start: transport:%p, bytes_acked:%d, "
+			 "cwnd:%d, ssthresh:%d, flight_size:%d, pba:%d\n",
+			 __func__, transport, bytes_acked, cwnd, ssthresh,
+			 flight_size, pba);
 	} else {
 		/* RFC 2960 7.2.2 Whenever cwnd is greater than ssthresh,
 		 * upon each SACK arrival that advances the Cumulative TSN Ack
@@ -459,12 +458,12 @@ void sctp_transport_raise_cwnd(struct sctp_transport *transport,
 			cwnd += pmtu;
 			pba = ((cwnd < pba) ? (pba - cwnd) : 0);
 		}
-		SCTP_DEBUG_PRINTK("%s: CONGESTION AVOIDANCE: "
-				  "transport: %p, bytes_acked: %d, cwnd: %d, "
-				  "ssthresh: %d, flight_size: %d, pba: %d\n",
-				  __func__,
-				  transport, bytes_acked, cwnd,
-				  ssthresh, flight_size, pba);
+
+		pr_debug("%s: congestion avoidance: transport:%p, "
+			 "bytes_acked:%d, cwnd:%d, ssthresh:%d, "
+			 "flight_size:%d, pba:%d\n", __func__,
+			 transport, bytes_acked, cwnd, ssthresh,
+			 flight_size, pba);
 	}
 
 	transport->cwnd = cwnd;
@@ -558,10 +557,10 @@ void sctp_transport_lower_cwnd(struct sctp_transport *transport,
 	}
 
 	transport->partial_bytes_acked = 0;
-	SCTP_DEBUG_PRINTK("%s: transport: %p reason: %d cwnd: "
-			  "%d ssthresh: %d\n", __func__,
-			  transport, reason,
-			  transport->cwnd, transport->ssthresh);
+
+	pr_debug("%s: transport:%p, reason:%d, cwnd:%d, ssthresh:%d\n",
+		 __func__, transport, reason, transport->cwnd,
+		 transport->ssthresh);
 }
 
 /* Apply Max.Burst limit to the congestion window:
-- 
cgit v0.10.2


From 6c734fb8592f6768170e48e7102cb2f0a1bb9759 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Sat, 29 Jun 2013 12:02:59 +0800
Subject: gre: fix a regression in ioctl

When testing GRE tunnel, I got:

 # ip tunnel show
 get tunnel gre0 failed: Invalid argument
 get tunnel gre1 failed: Invalid argument

This is a regression introduced by commit c54419321455631079c7d
("GRE: Refactor GRE tunneling code.") because previously we
only check the parameters for SIOCADDTUNNEL and SIOCCHGTUNNEL,
after that commit, the check is moved for all commands.

So, just check for SIOCADDTUNNEL and SIOCCHGTUNNEL.

After this patch I got:

 # ip tunnel show
 gre0: gre/ip  remote any  local any  ttl inherit  nopmtudisc
 gre1: gre/ip  remote 192.168.122.101  local 192.168.122.45  ttl inherit

Cc: Pravin B Shelar <pshelar@nicira.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index c326e86..1f6eab6 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -314,10 +314,11 @@ static int ipgre_tunnel_ioctl(struct net_device *dev,
 
 	if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p)))
 		return -EFAULT;
-	if (p.iph.version != 4 || p.iph.protocol != IPPROTO_GRE ||
-	    p.iph.ihl != 5 || (p.iph.frag_off&htons(~IP_DF)) ||
-	    ((p.i_flags|p.o_flags)&(GRE_VERSION|GRE_ROUTING))) {
-		return -EINVAL;
+	if (cmd == SIOCADDTUNNEL || cmd == SIOCCHGTUNNEL) {
+		if (p.iph.version != 4 || p.iph.protocol != IPPROTO_GRE ||
+		    p.iph.ihl != 5 || (p.iph.frag_off&htons(~IP_DF)) ||
+		    ((p.i_flags|p.o_flags)&(GRE_VERSION|GRE_ROUTING)))
+			return -EINVAL;
 	}
 	p.i_flags = gre_flags_to_tnl_flags(p.i_flags);
 	p.o_flags = gre_flags_to_tnl_flags(p.o_flags);
-- 
cgit v0.10.2


From ab6c7a0a43c2eaafa57583822b619b22637b49c7 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Sat, 29 Jun 2013 13:00:57 +0800
Subject: vti: remove duplicated code to fix a memory leak

vti module allocates dev->tstats twice: in vti_fb_tunnel_init()
and in vti_tunnel_init(), this lead to a memory leak of
dev->tstats.

Just remove the duplicated operations in vti_fb_tunnel_init().

(candidate for -stable)

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Saurabh Mohan <saurabh.mohan@vyatta.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index c118f6b..17cc0ff 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -606,17 +606,10 @@ static int __net_init vti_fb_tunnel_init(struct net_device *dev)
 	struct iphdr *iph = &tunnel->parms.iph;
 	struct vti_net *ipn = net_generic(dev_net(dev), vti_net_id);
 
-	tunnel->dev = dev;
-	strcpy(tunnel->parms.name, dev->name);
-
 	iph->version		= 4;
 	iph->protocol		= IPPROTO_IPIP;
 	iph->ihl		= 5;
 
-	dev->tstats = alloc_percpu(struct pcpu_tstats);
-	if (!dev->tstats)
-		return -ENOMEM;
-
 	dev_hold(dev);
 	rcu_assign_pointer(ipn->tunnels_wc[0], tunnel);
 	return 0;
-- 
cgit v0.10.2


From 8965779d2c0e6ab246c82a405236b1fb2adae6b2 Mon Sep 17 00:00:00 2001
From: Amerigo Wang <amwang@redhat.com>
Date: Sat, 29 Jun 2013 21:30:49 +0800
Subject: ipv6,mcast: always hold idev->lock before mca_lock

dingtianhong reported the following deadlock detected by lockdep:

 ======================================================
 [ INFO: possible circular locking dependency detected ]
 3.4.24.05-0.1-default #1 Not tainted
 -------------------------------------------------------
 ksoftirqd/0/3 is trying to acquire lock:
  (&ndev->lock){+.+...}, at: [<ffffffff8147f804>] ipv6_get_lladdr+0x74/0x120

 but task is already holding lock:
  (&mc->mca_lock){+.+...}, at: [<ffffffff8149d130>] mld_send_report+0x40/0x150

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #1 (&mc->mca_lock){+.+...}:
        [<ffffffff810a8027>] validate_chain+0x637/0x730
        [<ffffffff810a8417>] __lock_acquire+0x2f7/0x500
        [<ffffffff810a8734>] lock_acquire+0x114/0x150
        [<ffffffff814f691a>] rt_spin_lock+0x4a/0x60
        [<ffffffff8149e4bb>] igmp6_group_added+0x3b/0x120
        [<ffffffff8149e5d8>] ipv6_mc_up+0x38/0x60
        [<ffffffff81480a4d>] ipv6_find_idev+0x3d/0x80
        [<ffffffff81483175>] addrconf_notify+0x3d5/0x4b0
        [<ffffffff814fae3f>] notifier_call_chain+0x3f/0x80
        [<ffffffff81073471>] raw_notifier_call_chain+0x11/0x20
        [<ffffffff813d8722>] call_netdevice_notifiers+0x32/0x60
        [<ffffffff813d92d4>] __dev_notify_flags+0x34/0x80
        [<ffffffff813d9360>] dev_change_flags+0x40/0x70
        [<ffffffff813ea627>] do_setlink+0x237/0x8a0
        [<ffffffff813ebb6c>] rtnl_newlink+0x3ec/0x600
        [<ffffffff813eb4d0>] rtnetlink_rcv_msg+0x160/0x310
        [<ffffffff814040b9>] netlink_rcv_skb+0x89/0xb0
        [<ffffffff813eb357>] rtnetlink_rcv+0x27/0x40
        [<ffffffff81403e20>] netlink_unicast+0x140/0x180
        [<ffffffff81404a9e>] netlink_sendmsg+0x33e/0x380
        [<ffffffff813c4252>] sock_sendmsg+0x112/0x130
        [<ffffffff813c537e>] __sys_sendmsg+0x44e/0x460
        [<ffffffff813c5544>] sys_sendmsg+0x44/0x70
        [<ffffffff814feab9>] system_call_fastpath+0x16/0x1b

 -> #0 (&ndev->lock){+.+...}:
        [<ffffffff810a798e>] check_prev_add+0x3de/0x440
        [<ffffffff810a8027>] validate_chain+0x637/0x730
        [<ffffffff810a8417>] __lock_acquire+0x2f7/0x500
        [<ffffffff810a8734>] lock_acquire+0x114/0x150
        [<ffffffff814f6c82>] rt_read_lock+0x42/0x60
        [<ffffffff8147f804>] ipv6_get_lladdr+0x74/0x120
        [<ffffffff8149b036>] mld_newpack+0xb6/0x160
        [<ffffffff8149b18b>] add_grhead+0xab/0xc0
        [<ffffffff8149d03b>] add_grec+0x3ab/0x460
        [<ffffffff8149d14a>] mld_send_report+0x5a/0x150
        [<ffffffff8149f99e>] igmp6_timer_handler+0x4e/0xb0
        [<ffffffff8105705a>] call_timer_fn+0xca/0x1d0
        [<ffffffff81057b9f>] run_timer_softirq+0x1df/0x2e0
        [<ffffffff8104e8c7>] handle_pending_softirqs+0xf7/0x1f0
        [<ffffffff8104ea3b>] __do_softirq_common+0x7b/0xf0
        [<ffffffff8104f07f>] __thread_do_softirq+0x1af/0x210
        [<ffffffff8104f1c1>] run_ksoftirqd+0xe1/0x1f0
        [<ffffffff8106c7de>] kthread+0xae/0xc0
        [<ffffffff814fff74>] kernel_thread_helper+0x4/0x10

actually we can just hold idev->lock before taking pmc->mca_lock,
and avoid taking idev->lock again when iterating idev->addr_list,
since the upper callers of mld_newpack() already take
read_lock_bh(&idev->lock).

Reported-by: dingtianhong <dingtianhong@huawei.com>
Cc: dingtianhong <dingtianhong@huawei.com>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Ding Tianhong <dingtianhong@huawei.com>
Tested-by: Chen Weilong <chenweilong@huawei.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index f68eaf5..c7b181c 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -86,6 +86,9 @@ extern int			ipv6_dev_get_saddr(struct net *net,
 					       const struct in6_addr *daddr,
 					       unsigned int srcprefs,
 					       struct in6_addr *saddr);
+extern int			__ipv6_get_lladdr(struct inet6_dev *idev,
+						  struct in6_addr *addr,
+						  unsigned char banned_flags);
 extern int			ipv6_get_lladdr(struct net_device *dev,
 						struct in6_addr *addr,
 						unsigned char banned_flags);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 12dd2fe..75fd93b 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1444,8 +1444,8 @@ try_nextdev:
 }
 EXPORT_SYMBOL(ipv6_dev_get_saddr);
 
-static int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
-			     unsigned char banned_flags)
+int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
+		      unsigned char banned_flags)
 {
 	struct inet6_ifaddr *ifp;
 	int err = -EADDRNOTAVAIL;
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 502c877..99cd65c 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1351,8 +1351,9 @@ static void ip6_mc_hdr(struct sock *sk, struct sk_buff *skb,
 	hdr->daddr = *daddr;
 }
 
-static struct sk_buff *mld_newpack(struct net_device *dev, int size)
+static struct sk_buff *mld_newpack(struct inet6_dev *idev, int size)
 {
+	struct net_device *dev = idev->dev;
 	struct net *net = dev_net(dev);
 	struct sock *sk = net->ipv6.igmp_sk;
 	struct sk_buff *skb;
@@ -1377,7 +1378,7 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
 
 	skb_reserve(skb, hlen);
 
-	if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) {
+	if (__ipv6_get_lladdr(idev, &addr_buf, IFA_F_TENTATIVE)) {
 		/* <draft-ietf-magma-mld-source-05.txt>:
 		 * use unspecified address as the source address
 		 * when a valid link-local address is not available.
@@ -1474,7 +1475,7 @@ static struct sk_buff *add_grhead(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 	struct mld2_grec *pgr;
 
 	if (!skb)
-		skb = mld_newpack(dev, dev->mtu);
+		skb = mld_newpack(pmc->idev, dev->mtu);
 	if (!skb)
 		return NULL;
 	pgr = (struct mld2_grec *)skb_put(skb, sizeof(struct mld2_grec));
@@ -1494,7 +1495,8 @@ static struct sk_buff *add_grhead(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 	int type, int gdeleted, int sdeleted)
 {
-	struct net_device *dev = pmc->idev->dev;
+	struct inet6_dev *idev = pmc->idev;
+	struct net_device *dev = idev->dev;
 	struct mld2_report *pmr;
 	struct mld2_grec *pgr = NULL;
 	struct ip6_sf_list *psf, *psf_next, *psf_prev, **psf_list;
@@ -1523,7 +1525,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 		    AVAILABLE(skb) < grec_size(pmc, type, gdeleted, sdeleted)) {
 			if (skb)
 				mld_sendpack(skb);
-			skb = mld_newpack(dev, dev->mtu);
+			skb = mld_newpack(idev, dev->mtu);
 		}
 	}
 	first = 1;
@@ -1550,7 +1552,7 @@ static struct sk_buff *add_grec(struct sk_buff *skb, struct ifmcaddr6 *pmc,
 				pgr->grec_nsrcs = htons(scount);
 			if (skb)
 				mld_sendpack(skb);
-			skb = mld_newpack(dev, dev->mtu);
+			skb = mld_newpack(idev, dev->mtu);
 			first = 1;
 			scount = 0;
 		}
@@ -1605,8 +1607,8 @@ static void mld_send_report(struct inet6_dev *idev, struct ifmcaddr6 *pmc)
 	struct sk_buff *skb = NULL;
 	int type;
 
+	read_lock_bh(&idev->lock);
 	if (!pmc) {
-		read_lock_bh(&idev->lock);
 		for (pmc=idev->mc_list; pmc; pmc=pmc->next) {
 			if (pmc->mca_flags & MAF_NOREPORT)
 				continue;
@@ -1618,7 +1620,6 @@ static void mld_send_report(struct inet6_dev *idev, struct ifmcaddr6 *pmc)
 			skb = add_grec(skb, pmc, type, 0, 0);
 			spin_unlock_bh(&pmc->mca_lock);
 		}
-		read_unlock_bh(&idev->lock);
 	} else {
 		spin_lock_bh(&pmc->mca_lock);
 		if (pmc->mca_sfcount[MCAST_EXCLUDE])
@@ -1628,6 +1629,7 @@ static void mld_send_report(struct inet6_dev *idev, struct ifmcaddr6 *pmc)
 		skb = add_grec(skb, pmc, type, 0, 0);
 		spin_unlock_bh(&pmc->mca_lock);
 	}
+	read_unlock_bh(&idev->lock);
 	if (skb)
 		mld_sendpack(skb);
 }
-- 
cgit v0.10.2


From d8eb8f9963a55ccf6ebafa4bfdb9f70c17067825 Mon Sep 17 00:00:00 2001
From: Enrico Mioso <mrkiko.rs@gmail.com>
Date: Sat, 29 Jun 2013 15:39:19 +0200
Subject: qmi_wwan: add ONDA MT689DC device ID (fwd)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Another QMI-speaking device by ZTE, re-branded by ONDA!

I'm connected ovr this device's QMI interface right now, so I can say I tested
it! :)

Note: a follow-up patch was posted to the linux-usb mailing list, to prevent
the option driver from binding to the device's QMI interface, making it
unusable.

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 6de1102..cdddb39 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -523,6 +523,7 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x19d2, 0x0002, 1)},
 	{QMI_FIXED_INTF(0x19d2, 0x0012, 1)},
 	{QMI_FIXED_INTF(0x19d2, 0x0017, 3)},
+	{QMI_FIXED_INTF(0x19d2, 0x0019, 3)},	/* ONDA MT689DC */
 	{QMI_FIXED_INTF(0x19d2, 0x0021, 4)},
 	{QMI_FIXED_INTF(0x19d2, 0x0025, 1)},
 	{QMI_FIXED_INTF(0x19d2, 0x0031, 4)},
-- 
cgit v0.10.2


From 15627e847e4356ebdd49e7c3f10a671819995be6 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Mon, 1 Jul 2013 00:13:27 +0100
Subject: cassini: Make missing firmware non-fatal

The firmware patch for the Saturn PHY fixes a bug, but is not absolutely
essential.  And its licence is unclear, so it is not included in all
distributions.  Just log an error message and continue if it is missing
or invalid.

References: http://bugs.debian.org/712674
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Jose Andres Arias Velichko <Andres.Arias@PaisLinux.net> (against 3.2)
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c
index 4c682a3..759441b 100644
--- a/drivers/net/ethernet/sun/cassini.c
+++ b/drivers/net/ethernet/sun/cassini.c
@@ -808,44 +808,43 @@ static int cas_reset_mii_phy(struct cas *cp)
 	return limit <= 0;
 }
 
-static int cas_saturn_firmware_init(struct cas *cp)
+static void cas_saturn_firmware_init(struct cas *cp)
 {
 	const struct firmware *fw;
 	const char fw_name[] = "sun/cassini.bin";
 	int err;
 
 	if (PHY_NS_DP83065 != cp->phy_id)
-		return 0;
+		return;
 
 	err = request_firmware(&fw, fw_name, &cp->pdev->dev);
 	if (err) {
 		pr_err("Failed to load firmware \"%s\"\n",
 		       fw_name);
-		return err;
+		return;
 	}
 	if (fw->size < 2) {
 		pr_err("bogus length %zu in \"%s\"\n",
 		       fw->size, fw_name);
-		err = -EINVAL;
 		goto out;
 	}
 	cp->fw_load_addr= fw->data[1] << 8 | fw->data[0];
 	cp->fw_size = fw->size - 2;
 	cp->fw_data = vmalloc(cp->fw_size);
-	if (!cp->fw_data) {
-		err = -ENOMEM;
+	if (!cp->fw_data)
 		goto out;
-	}
 	memcpy(cp->fw_data, &fw->data[2], cp->fw_size);
 out:
 	release_firmware(fw);
-	return err;
 }
 
 static void cas_saturn_firmware_load(struct cas *cp)
 {
 	int i;
 
+	if (!cp->fw_data)
+		return;
+
 	cas_phy_powerdown(cp);
 
 	/* expanded memory access mode */
@@ -5083,8 +5082,7 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (cas_check_invariants(cp))
 		goto err_out_iounmap;
 	if (cp->cas_flags & CAS_FLAG_SATURN)
-		if (cas_saturn_firmware_init(cp))
-			goto err_out_iounmap;
+		cas_saturn_firmware_init(cp);
 
 	cp->init_block = (struct cas_init_block *)
 		pci_alloc_consistent(pdev, sizeof(struct cas_init_block),
-- 
cgit v0.10.2


From e02010adeeb21ef56d6b9b68c785ed1ecc832aee Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 1 Jul 2013 11:31:36 +0200
Subject: net: sctp: get rid of SCTP_DBG_TSNS entirely

After having reworked the debugging framework, Neil and Vlad agreed to
get rid of the leftover SCTP_DBG_TSNS code for a couple of reasons:

We can use systemtap scripts to investigate these things, we now have
pr_debug() helpers that make life easier, and if we really need anything
else besides those tools, we will be forced to come up with something
better than we have there. Therefore, get rid of this ifdef debugging
code entirely for now.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
CC: Vlad Yasevich <vyasevich@gmail.com>
CC: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/Kconfig b/net/sctp/Kconfig
index d80bf1a..71c1a59 100644
--- a/net/sctp/Kconfig
+++ b/net/sctp/Kconfig
@@ -49,15 +49,6 @@ config NET_SCTPPROBE
         To compile this code as a module, choose M here: the
         module will be called sctp_probe.
 
-config SCTP_DBG_TSNS
-	bool "SCTP: Debug transactions"
-	help
-	  If you say Y, this will enable transaction debugging, visible
-	  from the kernel's dynamic debugging framework.
-
-	  If unsure, say N.  However, if you are running into problems, use 
-	  this option to gather outqueue trace information.
-
 config SCTP_DBG_OBJCNT
 	bool "SCTP: Debug object counts"
 	depends on PROC_FS
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 511b3b3..cb80a8e 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -1335,21 +1335,6 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 	int bytes_acked = 0;
 	int migrate_bytes = 0;
 
-	/* These state variables are for coherent debug output. --xguo */
-
-#ifdef CONFIG_SCTP_DBG_TSNS
-	__u32 dbg_ack_tsn = 0;	/* An ACKed TSN range starts here... */
-	__u32 dbg_last_ack_tsn = 0;  /* ...and finishes here.	     */
-	__u32 dbg_kept_tsn = 0;	/* An un-ACKed range starts here...  */
-	__u32 dbg_last_kept_tsn = 0; /* ...and finishes here.	     */
-
-	/* 0 : The last TSN was ACKed.
-	 * 1 : The last TSN was NOT ACKed (i.e. KEPT).
-	 * -1: We need to initialize.
-	 */
-	int dbg_prt_state = -1;
-#endif /* CONFIG_SCTP_DBG_TSNS */
-
 	sack_ctsn = ntohl(sack->cum_tsn_ack);
 
 	INIT_LIST_HEAD(&tlist);
@@ -1471,49 +1456,6 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 				 */
 				list_add_tail(lchunk, &tlist);
 			}
-
-#ifdef CONFIG_SCTP_DBG_TSNS
-			switch (dbg_prt_state) {
-			case 0:	/* last TSN was ACKed */
-				if (dbg_last_ack_tsn + 1 == tsn) {
-					/* This TSN belongs to the
-					 * current ACK range.
-					 */
-					break;
-				}
-
-				if (dbg_last_ack_tsn != dbg_ack_tsn) {
-					/* Display the end of the
-					 * current range.
-					 */
-					pr_cont("-%08x", dbg_last_ack_tsn);
-				}
-
-				/* Start a new range.  */
-				pr_cont(",%08x", tsn);
-				dbg_ack_tsn = tsn;
-				break;
-
-			case 1:	/* The last TSN was NOT ACKed. */
-				if (dbg_last_kept_tsn != dbg_kept_tsn) {
-					/* Display the end of current range. */
-					pr_cont("-%08x", dbg_last_kept_tsn);
-				}
-
-				pr_cont("\n");
-				/* FALL THROUGH... */
-			default:
-				/* This is the first-ever TSN we examined.  */
-				/* Start a new range of ACK-ed TSNs.  */
-				pr_debug("ACKed: %08x", tsn);
-
-				dbg_prt_state = 0;
-				dbg_ack_tsn = tsn;
-			}
-
-			dbg_last_ack_tsn = tsn;
-#endif /* CONFIG_SCTP_DBG_TSNS */
-
 		} else {
 			if (tchunk->tsn_gap_acked) {
 				pr_debug("%s: receiver reneged on data TSN:0x%x\n",
@@ -1537,56 +1479,9 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 			}
 
 			list_add_tail(lchunk, &tlist);
-
-#ifdef CONFIG_SCTP_DBG_TSNS
-			/* See the above comments on ACK-ed TSNs. */
-			switch (dbg_prt_state) {
-			case 1:
-				if (dbg_last_kept_tsn + 1 == tsn)
-					break;
-
-				if (dbg_last_kept_tsn != dbg_kept_tsn)
-					pr_cont("-%08x", dbg_last_kept_tsn);
-
-				pr_cont(",%08x", tsn);
-				dbg_kept_tsn = tsn;
-				break;
-
-			case 0:
-				if (dbg_last_ack_tsn != dbg_ack_tsn)
-					pr_cont("-%08x", dbg_last_ack_tsn);
-
-				pr_cont("\n");
-				/* FALL THROUGH... */
-			default:
-				pr_debug("KEPT: %08x", tsn);
-
-				dbg_prt_state = 1;
-				dbg_kept_tsn = tsn;
-			}
-
-			dbg_last_kept_tsn = tsn;
-#endif /* CONFIG_SCTP_DBG_TSNS */
 		}
 	}
 
-#ifdef CONFIG_SCTP_DBG_TSNS
-	/* Finish off the last range, displaying its ending TSN.  */
-	switch (dbg_prt_state) {
-	case 0:
-		if (dbg_last_ack_tsn != dbg_ack_tsn)
-			pr_cont("-%08x\n", dbg_last_ack_tsn);
-		else
-			pr_cont("\n");
-		break;
-	case 1:
-		if (dbg_last_kept_tsn != dbg_kept_tsn)
-			pr_cont("-%08x\n", dbg_last_kept_tsn);
-		else
-			pr_cont("\n");
-		break;
-	}
-#endif /* CONFIG_SCTP_DBG_TSNS */
 	if (transport) {
 		if (bytes_acked) {
 			struct sctp_association *asoc = transport->asoc;
-- 
cgit v0.10.2


From 058eec4116935c5640299913e1e0715e87ec622a Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Mon, 1 Jul 2013 17:23:05 +0200
Subject: bnx2x: remove zeroing of dump data buffer

There is no need to initialize the dump data with zeros.
data is allocated with vzalloc, so it's already zero-filled.

More importantly, the memset is harmful, because dump->len (the length
requested by userspace) can be bigger than the allocated buffer (whose
size is determined by asking the driver's .get_dump_flag method).

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index b8c067d..4f75ae8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -985,8 +985,6 @@ static int bnx2x_get_dump_data(struct net_device *dev,
 	struct bnx2x *bp = netdev_priv(dev);
 	struct dump_header dump_hdr = {0};
 
-	memset(p, 0, dump->len);
-
 	/* Disable parity attentions as long as following dump may
 	 * cause false alarms by reading never written registers. We
 	 * will re-enable parity attentions right after the dump.
-- 
cgit v0.10.2


From 5bb680d6cbe36de9d7ba12b05f845c91a8692318 Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Mon, 1 Jul 2013 17:23:06 +0200
Subject: bnx2x: fix dump flag handling

bnx2x interprets the dump flag as an index of a register preset.
It is important to validate the index to avoid out of bounds
memory accesses.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 4f75ae8..cf5cebc 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -959,6 +959,9 @@ static int bnx2x_set_dump(struct net_device *dev, struct ethtool_dump *val)
 	struct bnx2x *bp = netdev_priv(dev);
 
 	/* Use the ethtool_dump "flag" field as the dump preset index */
+	if (val->flag < 1 || val->flag > DUMP_MAX_PRESETS)
+		return -EINVAL;
+
 	bp->dump_preset_idx = val->flag;
 	return 0;
 }
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 740518b..15a528b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -11636,6 +11636,8 @@ static int bnx2x_init_bp(struct bnx2x *bp)
 		bp->min_msix_vec_cnt = 2;
 	BNX2X_DEV_INFO("bp->min_msix_vec_cnt %d", bp->min_msix_vec_cnt);
 
+	bp->dump_preset_idx = 1;
+
 	return rc;
 }
 
-- 
cgit v0.10.2


From 8cc2d927c26a677415a9d0d23b9a043107f948c3 Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Mon, 1 Jul 2013 17:23:20 +0200
Subject: bnx2x: fill in sane dump flag information

bnx2x did not set dump->version in its .get_dump_flag() method.
Let's set it to BNX2X_DUMP_VERSION. It's not a particularly nice
number (0x50acff01 currently), but at least it's something
deterministic.

dump->flag should report the value previously set using ethtool -W.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index cf5cebc..c5f2251 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -971,12 +971,12 @@ static int bnx2x_get_dump_flag(struct net_device *dev,
 {
 	struct bnx2x *bp = netdev_priv(dev);
 
+	dump->version = BNX2X_DUMP_VERSION;
+	dump->flag = bp->dump_preset_idx;
 	/* Calculate the requested preset idx length */
 	dump->len = bnx2x_get_preset_regs_len(dev, bp->dump_preset_idx);
 	DP(BNX2X_MSG_ETHTOOL, "Get dump preset %d length=%d\n",
 	   bp->dump_preset_idx, dump->len);
-
-	dump->flag = ETHTOOL_GET_DUMP_DATA;
 	return 0;
 }
 
-- 
cgit v0.10.2


From c590b5e2f05b5e98e614382582b7ae4cddb37599 Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Mon, 1 Jul 2013 17:23:30 +0200
Subject: ethtool: make .get_dump_data() harder to misuse by drivers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

As the patch "bnx2x: remove zeroing of dump data buffer" showed,
it is too easy implement .get_dump_data incorrectly in a driver.

Let's make sure drivers cannot get confused by userspace requesting
a too big dump.

Also WARN if the driver sets dump->len to something weird and make
sure the length reported to userspace is the actual length of data
copied to userspace.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 9255bbd..ab5fa63 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1320,10 +1320,19 @@ static int ethtool_get_dump_data(struct net_device *dev,
 	if (ret)
 		return ret;
 
-	len = (tmp.len > dump.len) ? dump.len : tmp.len;
+	len = min(tmp.len, dump.len);
 	if (!len)
 		return -EFAULT;
 
+	/* Don't ever let the driver think there's more space available
+	 * than it requested with .get_dump_flag().
+	 */
+	dump.len = len;
+
+	/* Always allocate enough space to hold the whole thing so that the
+	 * driver does not need to check the length and bother with partial
+	 * dumping.
+	 */
 	data = vzalloc(tmp.len);
 	if (!data)
 		return -ENOMEM;
@@ -1331,6 +1340,16 @@ static int ethtool_get_dump_data(struct net_device *dev,
 	if (ret)
 		goto out;
 
+	/* There are two sane possibilities:
+	 * 1. The driver's .get_dump_data() does not touch dump.len.
+	 * 2. Or it may set dump.len to how much it really writes, which
+	 *    should be tmp.len (or len if it can do a partial dump).
+	 * In any case respond to userspace with the actual length of data
+	 * it's receiving.
+	 */
+	WARN_ON(dump.len != len && dump.len != tmp.len);
+	dump.len = len;
+
 	if (copy_to_user(useraddr, &dump, sizeof(dump))) {
 		ret = -EFAULT;
 		goto out;
-- 
cgit v0.10.2


From 37beae65fa4a683b2f17f3472708ab58d134b03c Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 1 Jul 2013 18:09:50 +0200
Subject: tools: selftests: psock_tpacket: get rid of macro wrappers

The TPACKET_V3 test code consists of a lot of unecessary macro
wrappers that rather obfuscate what members are accessed in what
way. So get rid of them and make the code more readable. Also
credit Chetan for providing tpacket_v3 example code. Furthermore,
get rid of private offset usage, as we do not need it here.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/psock_tpacket.c b/tools/testing/selftests/net/psock_tpacket.c
index c41b586..24adf70 100644
--- a/tools/testing/selftests/net/psock_tpacket.c
+++ b/tools/testing/selftests/net/psock_tpacket.c
@@ -1,6 +1,7 @@
 /*
  * Copyright 2013 Red Hat, Inc.
  * Author: Daniel Borkmann <dborkman@redhat.com>
+ *         Chetan Loke <loke.chetan@gmail.com> (TPACKET_V3 usage example)
  *
  * A basic test of packet socket's TPACKET_V1/TPACKET_V2/TPACKET_V3 behavior.
  *
@@ -71,18 +72,8 @@
 # define __align_tpacket(x)	__attribute__((aligned(TPACKET_ALIGN(x))))
 #endif
 
-#define BLOCK_STATUS(x)		((x)->h1.block_status)
-#define BLOCK_NUM_PKTS(x)	((x)->h1.num_pkts)
-#define BLOCK_O2FP(x)		((x)->h1.offset_to_first_pkt)
-#define BLOCK_LEN(x)		((x)->h1.blk_len)
-#define BLOCK_SNUM(x)		((x)->h1.seq_num)
-#define BLOCK_O2PRIV(x)		((x)->offset_to_priv)
-#define BLOCK_PRIV(x)		((void *) ((uint8_t *) (x) + BLOCK_O2PRIV(x)))
-#define BLOCK_HDR_LEN		(ALIGN_8(sizeof(struct block_desc)))
-#define ALIGN_8(x)		(((x) + 8 - 1) & ~(8 - 1))
-#define BLOCK_PLUS_PRIV(sz_pri)	(BLOCK_HDR_LEN + ALIGN_8((sz_pri)))
-
 #define NUM_PACKETS		100
+#define ALIGN_8(x)		(((x) + 8 - 1) & ~(8 - 1))
 
 struct ring {
 	struct iovec *rd;
@@ -476,41 +467,30 @@ static uint64_t __v3_prev_block_seq_num = 0;
 
 void __v3_test_block_seq_num(struct block_desc *pbd)
 {
-	if (__v3_prev_block_seq_num + 1 != BLOCK_SNUM(pbd)) {
+	if (__v3_prev_block_seq_num + 1 != pbd->h1.seq_num) {
 		fprintf(stderr, "\nprev_block_seq_num:%"PRIu64", expected "
 			"seq:%"PRIu64" != actual seq:%"PRIu64"\n",
 			__v3_prev_block_seq_num, __v3_prev_block_seq_num + 1,
-			(uint64_t) BLOCK_SNUM(pbd));
+			(uint64_t) pbd->h1.seq_num);
 		exit(1);
 	}
 
-	__v3_prev_block_seq_num = BLOCK_SNUM(pbd);
+	__v3_prev_block_seq_num = pbd->h1.seq_num;
 }
 
 static void __v3_test_block_len(struct block_desc *pbd, uint32_t bytes, int block_num)
 {
-	if (BLOCK_NUM_PKTS(pbd)) {
-		if (bytes != BLOCK_LEN(pbd)) {
-			fprintf(stderr, "\nblock:%u with %upackets, expected "
-				"len:%u != actual len:%u\n", block_num,
-				BLOCK_NUM_PKTS(pbd), bytes, BLOCK_LEN(pbd));
-			exit(1);
-		}
-	} else {
-		if (BLOCK_LEN(pbd) != BLOCK_PLUS_PRIV(13)) {
-			fprintf(stderr, "\nblock:%u, expected len:%lu != "
-				"actual len:%u\n", block_num, BLOCK_HDR_LEN,
-				BLOCK_LEN(pbd));
-			exit(1);
-		}
+	if (pbd->h1.num_pkts && bytes != pbd->h1.blk_len) {
+		fprintf(stderr, "\nblock:%u with %upackets, expected "
+			"len:%u != actual len:%u\n", block_num,
+			pbd->h1.num_pkts, bytes, pbd->h1.blk_len);
+		exit(1);
 	}
 }
 
 static void __v3_test_block_header(struct block_desc *pbd, const int block_num)
 {
-	uint32_t block_status = BLOCK_STATUS(pbd);
-
-	if ((block_status & TP_STATUS_USER) == 0) {
+	if ((pbd->h1.block_status & TP_STATUS_USER) == 0) {
 		fprintf(stderr, "\nblock %u: not in TP_STATUS_USER\n", block_num);
 		exit(1);
 	}
@@ -520,14 +500,15 @@ static void __v3_test_block_header(struct block_desc *pbd, const int block_num)
 
 static void __v3_walk_block(struct block_desc *pbd, const int block_num)
 {
-	int num_pkts = BLOCK_NUM_PKTS(pbd), i;
-	unsigned long bytes = 0;
-	unsigned long bytes_with_padding = BLOCK_PLUS_PRIV(13);
+	int num_pkts = pbd->h1.num_pkts, i;
+	unsigned long bytes = 0, bytes_with_padding = ALIGN_8(sizeof(*pbd));
 	struct tpacket3_hdr *ppd;
 
 	__v3_test_block_header(pbd, block_num);
 
-	ppd = (struct tpacket3_hdr *) ((uint8_t *) pbd + BLOCK_O2FP(pbd));
+	ppd = (struct tpacket3_hdr *) ((uint8_t *) pbd +
+				       pbd->h1.offset_to_first_pkt);
+
 	for (i = 0; i < num_pkts; ++i) {
 		bytes += ppd->tp_snaplen;
 
@@ -551,7 +532,7 @@ static void __v3_walk_block(struct block_desc *pbd, const int block_num)
 
 void __v3_flush_block(struct block_desc *pbd)
 {
-	BLOCK_STATUS(pbd) = TP_STATUS_KERNEL;
+	pbd->h1.block_status = TP_STATUS_KERNEL;
 	__sync_synchronize();
 }
 
@@ -577,7 +558,7 @@ static void walk_v3_rx(int sock, struct ring *ring)
 	while (total_packets < NUM_PACKETS * 2) {
 		pbd = (struct block_desc *) ring->rd[block_num].iov_base;
 
-		while ((BLOCK_STATUS(pbd) & TP_STATUS_USER) == 0)
+		while ((pbd->h1.block_status & TP_STATUS_USER) == 0)
 			poll(&pfd, 1, 1);
 
 		__v3_walk_block(pbd, block_num);
@@ -624,8 +605,8 @@ static void __v1_v2_fill(struct ring *ring, unsigned int blocks)
 static void __v3_fill(struct ring *ring, unsigned int blocks)
 {
 	ring->req3.tp_retire_blk_tov = 64;
-	ring->req3.tp_sizeof_priv = 13;
-	ring->req3.tp_feature_req_word |= TP_FT_REQ_FILL_RXHASH;
+	ring->req3.tp_sizeof_priv = 0;
+	ring->req3.tp_feature_req_word = TP_FT_REQ_FILL_RXHASH;
 
 	ring->req3.tp_block_size = getpagesize() << 2;
 	ring->req3.tp_frame_size = TPACKET_ALIGNMENT << 7;
-- 
cgit v0.10.2


From a05b1019cfe5250baf24e26e2e7112cf66054114 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 1 Jul 2013 18:10:36 +0200
Subject: net: sctp: prevent checksum.h from double inclusion

The header file checksum.h is missing proper defines that prevents
it from double inclusion.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
index 5a2110d..0cb08e6 100644
--- a/include/net/sctp/checksum.h
+++ b/include/net/sctp/checksum.h
@@ -42,6 +42,9 @@
  * be incorporated into the next SCTP release.
  */
 
+#ifndef __sctp_checksum_h__
+#define __sctp_checksum_h__
+
 #include <linux/types.h>
 #include <net/sctp/sctp.h>
 #include <linux/crc32c.h>
@@ -81,3 +84,5 @@ static inline __le32 sctp_end_cksum(__u32 crc32)
 {
 	return cpu_to_le32(~crc32);
 }
+
+#endif /* __sctp_checksum_h__ */
-- 
cgit v0.10.2


From a7599398a312fd7b81aba0188ca4749f781f5a52 Mon Sep 17 00:00:00 2001
From: Aaron Marburg <amarburg@notetofutureself.org>
Date: Tue, 2 Jul 2013 10:00:06 +1200
Subject: net: ipheth: Add USB ID for iPad mini

Adds the USB device ID (0x12ab) to the ipheth network-over-USB-tethering
driver for iOS devices.  Applied and tested against mainline tag v3.10
(as well as 3.8.x and 3.6.y kernel for Raspbian on Raspberry pi)

Signed-off-by: Aaron Marburg <amarburg@notetofutureself.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 534d8be..ff8594d 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -60,6 +60,7 @@
 #define USB_PRODUCT_IPHONE_3GS  0x1294
 #define USB_PRODUCT_IPHONE_4	0x1297
 #define USB_PRODUCT_IPAD 0x129a
+#define USB_PRODUCT_IPAD_MINI    0x12ab
 #define USB_PRODUCT_IPHONE_4_VZW 0x129c
 #define USB_PRODUCT_IPHONE_4S	0x12a0
 #define USB_PRODUCT_IPHONE_5	0x12a8
@@ -107,6 +108,10 @@ static struct usb_device_id ipheth_table[] = {
 		IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 		IPHETH_USBINTF_PROTO) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(
+		USB_VENDOR_APPLE, USB_PRODUCT_IPAD_MINI,
+		IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
+		IPHETH_USBINTF_PROTO) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(
 		USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4_VZW,
 		IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 		IPHETH_USBINTF_PROTO) },
-- 
cgit v0.10.2


From b48410b4dc9c7306df21e508cc6739a55c350eb8 Mon Sep 17 00:00:00 2001
From: Rami Rosen <ramirose@gmail.com>
Date: Mon, 1 Jul 2013 22:19:45 +0300
Subject: ipv4: remove fib_update_nh_saddrs() declaration.

This patch removes the fib_update_nh_saddrs() declaration from
include/net/ip_fib.h, as the fib_update_nh_saddrs() method was removed in
coomit 436c3b6 ("ipv4: Invalidate nexthop cache nh_saddr more correctly").

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index aac8553..cbf2be3 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -291,7 +291,6 @@ static inline int fib_num_tclassid_users(struct net *net)
 extern int ip_fib_check_default(__be32 gw, struct net_device *dev);
 extern int fib_sync_down_dev(struct net_device *dev, int force);
 extern int fib_sync_down_addr(struct net *net, __be32 local);
-extern void fib_update_nh_saddrs(struct net_device *dev);
 extern int fib_sync_up(struct net_device *dev);
 extern void fib_select_multipath(struct fib_result *res);
 
-- 
cgit v0.10.2


From 8ef2c3bca599710a410cbecb4867e27728fef043 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Tue, 2 Jul 2013 00:08:54 +0100
Subject: xen-netback: xenbus.c: use more current logging styles

Convert one printk to pr_<level>.

Add a missing newline in several places to avoid message interleaving,
coalesce formats, reflow modified lines to 80 columns.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 04bd860..1fe48fe3 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -130,7 +130,7 @@ static int netback_probe(struct xenbus_device *dev,
 			    "feature-split-event-channels",
 			    "%u", separate_tx_rx_irq);
 	if (err)
-		pr_debug("Error writing feature-split-event-channels");
+		pr_debug("Error writing feature-split-event-channels\n");
 
 	err = xenbus_switch_state(dev, XenbusStateInitWait);
 	if (err)
@@ -145,7 +145,7 @@ abort_transaction:
 	xenbus_transaction_end(xbt, 1);
 	xenbus_dev_fatal(dev, err, "%s", message);
 fail:
-	pr_debug("failed");
+	pr_debug("failed\n");
 	netback_remove(dev);
 	return err;
 }
@@ -228,15 +228,14 @@ static void frontend_changed(struct xenbus_device *dev,
 {
 	struct backend_info *be = dev_get_drvdata(&dev->dev);
 
-	pr_debug("frontend state %s", xenbus_strstate(frontend_state));
+	pr_debug("frontend state %s\n", xenbus_strstate(frontend_state));
 
 	be->frontend_state = frontend_state;
 
 	switch (frontend_state) {
 	case XenbusStateInitialising:
 		if (dev->state == XenbusStateClosed) {
-			printk(KERN_INFO "%s: %s: prepare for reconnect\n",
-			       __func__, dev->nodename);
+			pr_info("%s: prepare for reconnect\n", dev->nodename);
 			xenbus_switch_state(dev, XenbusStateInitWait);
 		}
 		break;
-- 
cgit v0.10.2


From f3ad89217fa8088203b6c040584987028d524456 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 2 Jul 2013 08:57:47 +0800
Subject: net: ethernet: davinci_emac: remove redundant dev_err call in
 davinci_emac_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index f118d71..07b176b 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1870,7 +1870,6 @@ static int davinci_emac_probe(struct platform_device *pdev)
 	priv->emac_base_phys = res->start + pdata->ctrl_reg_offset;
 	priv->remap_addr = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(priv->remap_addr)) {
-		dev_err(&pdev->dev, "unable to map IO\n");
 		rc = PTR_ERR(priv->remap_addr);
 		goto no_pdata;
 	}
-- 
cgit v0.10.2


From e1558a93b61962710733dc8c11a2bc765607f1cd Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 2 Jul 2013 09:02:07 +0800
Subject: l2tp: add missing .owner to struct pppox_proto

Add missing .owner of struct pppox_proto. This prevents the
module from being removed from underneath its users.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 8dec687..5ebee2d 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -1793,7 +1793,8 @@ static const struct proto_ops pppol2tp_ops = {
 
 static const struct pppox_proto pppol2tp_proto = {
 	.create		= pppol2tp_create,
-	.ioctl		= pppol2tp_ioctl
+	.ioctl		= pppol2tp_ioctl,
+	.owner		= THIS_MODULE,
 };
 
 #ifdef CONFIG_L2TP_V3
-- 
cgit v0.10.2


From 3b7b514f44bff05d26a6499c4d4fac2a83938e6e Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Tue, 2 Jul 2013 14:49:34 +0800
Subject: ipip: fix a regression in ioctl

This is a regression introduced by
commit fd58156e456d9f68fe0448 (IPIP: Use ip-tunneling code.)

Similar to GRE tunnel, previously we only check the parameters
for SIOCADDTUNNEL and SIOCCHGTUNNEL, after that commit, the
check is moved for all commands.

So, just check for SIOCADDTUNNEL and SIOCCHGTUNNEL.

Also, the check for i_key, o_key etc. is suspicious too,
which did not exist before, reset them before passing
to ip_tunnel_ioctl().

Cc: Pravin B Shelar <pshelar@nicira.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index e6905fb..51fc2a1 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -244,11 +244,13 @@ ipip_tunnel_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p)))
 		return -EFAULT;
 
-	if (p.iph.version != 4 || p.iph.protocol != IPPROTO_IPIP ||
-			p.iph.ihl != 5 || (p.iph.frag_off&htons(~IP_DF)))
-		return -EINVAL;
-	if (p.i_key || p.o_key || p.i_flags || p.o_flags)
-		return -EINVAL;
+	if (cmd == SIOCADDTUNNEL || cmd == SIOCCHGTUNNEL) {
+		if (p.iph.version != 4 || p.iph.protocol != IPPROTO_IPIP ||
+		    p.iph.ihl != 5 || (p.iph.frag_off&htons(~IP_DF)))
+			return -EINVAL;
+	}
+
+	p.i_key = p.o_key = p.i_flags = p.o_flags = 0;
 	if (p.iph.ttl)
 		p.iph.frag_off |= htons(IP_DF);
 
-- 
cgit v0.10.2


From 06efce71166b222b6715c73700f5e9b228d68999 Mon Sep 17 00:00:00 2001
From: Jim Baxter <jim_baxter@mentor.com>
Date: Thu, 27 Jun 2013 19:25:08 +0100
Subject: net: fec: Fix Transmitted bytes counter

The tx_bytes field was not being updated so the
network card statistics showed 0.0B transmitted.

Signed-off-by: Jim Baxter <jim_baxter@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 5664acd..aff8a5c 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -739,6 +739,7 @@ fec_enet_tx(struct net_device *ndev)
 				ndev->stats.tx_carrier_errors++;
 		} else {
 			ndev->stats.tx_packets++;
+			ndev->stats.tx_bytes += bdp->cbd_datlen;
 		}
 
 		if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS) &&
-- 
cgit v0.10.2


From 1fc4c84d49558ceca04761abd3f7eb5224af75b2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
Date: Sat, 29 Jun 2013 12:03:06 +0200
Subject: net: cdc_ether: allow combined control and data interface
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some Icera based Huawei modems handled by this driver are not
completely CDC ECM compliant, using the same USB interface for both
control and data. The CDC functional descriptors include a Union
naming this interface as both master and slave, so it is supportable
by relaxing the descriptor parsing in case these interfaces are
identical.

This has been tested on a Huawei K3806 and verified to add support
for that device.

Reported-and-tested-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 04ee044..4393f14 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -215,6 +215,10 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 					goto bad_desc;
 			}
 
+			/* some devices merge these - skip class check */
+			if (info->control == info->data)
+				goto next_desc;
+
 			/* a data interface altsetting does the real i/o */
 			d = &info->data->cur_altsetting->desc;
 			if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
@@ -304,19 +308,23 @@ next_desc:
 	/* claim data interface and set it up ... with side effects.
 	 * network traffic can't flow until an altsetting is enabled.
 	 */
-	status = usb_driver_claim_interface(driver, info->data, dev);
-	if (status < 0)
-		return status;
+	if (info->data != info->control) {
+		status = usb_driver_claim_interface(driver, info->data, dev);
+		if (status < 0)
+			return status;
+	}
 	status = usbnet_get_endpoints(dev, info->data);
 	if (status < 0) {
 		/* ensure immediate exit from usbnet_disconnect */
 		usb_set_intfdata(info->data, NULL);
-		usb_driver_release_interface(driver, info->data);
+		if (info->data != info->control)
+			usb_driver_release_interface(driver, info->data);
 		return status;
 	}
 
 	/* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
-	dev->status = NULL;
+	if (info->data != info->control)
+		dev->status = NULL;
 	if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
 		struct usb_endpoint_descriptor	*desc;
 
@@ -349,6 +357,10 @@ void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
 	struct cdc_state		*info = (void *) &dev->data;
 	struct usb_driver		*driver = driver_of(intf);
 
+	/* combined interface - nothing  to do */
+	if (info->data == info->control)
+		return;
+
 	/* disconnect master --> disconnect slave */
 	if (intf == info->control && info->data) {
 		/* ensure immediate exit from usbnet_disconnect */
-- 
cgit v0.10.2


From 7cc47d139f9a815a91bd9e7377063238c69a0423 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Sun, 30 Jun 2013 14:37:11 +1000
Subject: cxgb3: Missing rtnl lock in error recovery

When exercising error injection on IBM pseries machine, I hit the
following warning:

[  251.450043] RTAS: event: 89, Type: Platform Error, Severity: 2
[  253.549822] cxgb3 0006:01:00.0: enabling device (0140 -> 0142)
[  253.713560] cxgb3 0006:01:00.0: adapter recovering, PEX ERR 0x100
[  254.895437] RTNL: assertion failed at net/core/dev.c (2031)
[  254.895467] CPU: 6 PID: 5449 Comm: eehd Tainted: G        W    3.10.0-rc7-00157-gea461ab #19
[  254.895474] Call Trace:
[  254.895483] [c000000fac56f7d0] [c000000000014dcc] .show_stack+0x7c/0x1f0 (unreliable)
[  254.895493] [c000000fac56f8a0] [c0000000007ba318] .dump_stack+0x28/0x3c
[  254.895500] [c000000fac56f910] [c0000000006c0384] .netif_set_real_num_tx_queues+0x224/0x230
[  254.895515] [c000000fac56f9b0] [d00000000ef35510] .cxgb_open+0x80/0x3f0 [cxgb3]
[  254.895525] [c000000fac56fa50] [d00000000ef35914] .t3_resume_ports+0x94/0x100 [cxgb3]
[  254.895533] [c000000fac56fae0] [c00000000005fc8c] .eeh_report_resume+0x8c/0xd0
[  254.895539] [c000000fac56fb60] [c00000000005e9fc] .eeh_pe_dev_traverse+0x9c/0x190
[  254.895545] [c000000fac56fc10] [c000000000060000] .eeh_handle_event+0x110/0x330
[  254.895551] [c000000fac56fca0] [c000000000060350] .eeh_event_handler+0x130/0x1a0
[  254.895558] [c000000fac56fd30] [c0000000000ad758] .kthread+0xe8/0xf0
[  254.895566] [c000000fac56fe30] [c00000000000a05c] .ret_from_kernel_thread+0x5c/0x80

It appears that t3_resume_ports() is called with the rtnl_lock held from
the fatal error task but not from the PCI error callbacks. This fixes it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
index 71497e8..b650951 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
@@ -3037,7 +3037,9 @@ static void t3_io_resume(struct pci_dev *pdev)
 	CH_ALERT(adapter, "adapter recovering, PEX ERR 0x%x\n",
 		 t3_read_reg(adapter, A_PCIE_PEX_ERR));
 
+	rtnl_lock();
 	t3_resume_ports(adapter);
+	rtnl_unlock();
 }
 
 static const struct pci_error_handlers t3_err_handler = {
-- 
cgit v0.10.2


From b9eef55c2ab33053ae236b5d383965f9ee6a0094 Mon Sep 17 00:00:00 2001
From: Jim Baxter <jim_baxter@mentor.com>
Date: Mon, 1 Jul 2013 14:57:54 +0100
Subject: net: fec: Fix RMON registers on imx6

commit 38ae92d "fec: Add support for reading
RMON registers" causes the imx6Q to crash.

This fixes it by only enabling the RMON registers, the
registers are already cleared by the MAC being reset.

Signed-off-by: Jim Baxter <jim_baxter@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index aff8a5c..b676882 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -606,11 +606,8 @@ fec_restart(struct net_device *ndev, int duplex)
 		ecntl |= (1 << 4);
 
 #ifndef CONFIG_M5272
-	/* Disable, clear, and enable the MIB */
-	writel(1 << 31, fep->hwp + FEC_MIB_CTRLSTAT);
-	for (i = RMON_T_DROP; i < IEEE_R_OCTETS_OK; i++)
-		writel(0, fep->hwp + i);
-	writel(0, fep->hwp + FEC_MIB_CTRLSTAT);
+	/* Enable the MIB statistic event counters */
+	writel(0 << 31, fep->hwp + FEC_MIB_CTRLSTAT);
 #endif
 
 	/* And last, enable the transmit and receive processing */
-- 
cgit v0.10.2


From 8822b64a0fa64a5dd1dfcf837c5b0be83f8c05d1 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 1 Jul 2013 20:21:30 +0200
Subject: ipv6: call udp_push_pending_frames when uncorking a socket with
 AF_INET pending data

We accidentally call down to ip6_push_pending_frames when uncorking
pending AF_INET data on a ipv6 socket. This results in the following
splat (from Dave Jones):

skbuff: skb_under_panic: text:ffffffff816765f6 len:48 put:40 head:ffff88013deb6df0 data:ffff88013deb6dec tail:0x2c end:0xc0 dev:<NULL>
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:126!
invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in: dccp_ipv4 dccp 8021q garp bridge stp dlci mpoa snd_seq_dummy sctp fuse hidp tun bnep nfnetlink scsi_transport_iscsi rfcomm can_raw can_bcm af_802154 appletalk caif_socket can caif ipt_ULOG x25 rose af_key pppoe pppox ipx phonet irda llc2 ppp_generic slhc p8023 psnap p8022 llc crc_ccitt atm bluetooth
+netrom ax25 nfc rfkill rds af_rxrpc coretemp hwmon kvm_intel kvm crc32c_intel snd_hda_codec_realtek ghash_clmulni_intel microcode pcspkr snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep usb_debug snd_seq snd_seq_device snd_pcm e1000e snd_page_alloc snd_timer ptp snd pps_core soundcore xfs libcrc32c
CPU: 2 PID: 8095 Comm: trinity-child2 Not tainted 3.10.0-rc7+ #37
task: ffff8801f52c2520 ti: ffff8801e6430000 task.ti: ffff8801e6430000
RIP: 0010:[<ffffffff816e759c>]  [<ffffffff816e759c>] skb_panic+0x63/0x65
RSP: 0018:ffff8801e6431de8  EFLAGS: 00010282
RAX: 0000000000000086 RBX: ffff8802353d3cc0 RCX: 0000000000000006
RDX: 0000000000003b90 RSI: ffff8801f52c2ca0 RDI: ffff8801f52c2520
RBP: ffff8801e6431e08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88022ea0c800
R13: ffff88022ea0cdf8 R14: ffff8802353ecb40 R15: ffffffff81cc7800
FS:  00007f5720a10740(0000) GS:ffff880244c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000005862000 CR3: 000000022843c000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Stack:
 ffff88013deb6dec 000000000000002c 00000000000000c0 ffffffff81a3f6e4
 ffff8801e6431e18 ffffffff8159a9aa ffff8801e6431e90 ffffffff816765f6
 ffffffff810b756b 0000000700000002 ffff8801e6431e40 0000fea9292aa8c0
Call Trace:
 [<ffffffff8159a9aa>] skb_push+0x3a/0x40
 [<ffffffff816765f6>] ip6_push_pending_frames+0x1f6/0x4d0
 [<ffffffff810b756b>] ? mark_held_locks+0xbb/0x140
 [<ffffffff81694919>] udp_v6_push_pending_frames+0x2b9/0x3d0
 [<ffffffff81694660>] ? udplite_getfrag+0x20/0x20
 [<ffffffff8162092a>] udp_lib_setsockopt+0x1aa/0x1f0
 [<ffffffff811cc5e7>] ? fget_light+0x387/0x4f0
 [<ffffffff816958a4>] udpv6_setsockopt+0x34/0x40
 [<ffffffff815949f4>] sock_common_setsockopt+0x14/0x20
 [<ffffffff81593c31>] SyS_setsockopt+0x71/0xd0
 [<ffffffff816f5d54>] tracesys+0xdd/0xe2
Code: 00 00 48 89 44 24 10 8b 87 d8 00 00 00 48 89 44 24 08 48 8b 87 e8 00 00 00 48 c7 c7 c0 04 aa 81 48 89 04 24 31 c0 e8 e1 7e ff ff <0f> 0b 55 48 89 e5 0f 0b 55 48 89 e5 0f 0b 55 48 89 e5 0f 0b 55
RIP  [<ffffffff816e759c>] skb_panic+0x63/0x65
 RSP <ffff8801e6431de8>

This patch adds a check if the pending data is of address family AF_INET
and directly calls udp_push_ending_frames from udp_v6_push_pending_frames
if that is the case.

This bug was found by Dave Jones with trinity.

(Also move the initialization of fl6 below the AF_INET check, even if
not strictly necessary.)

Cc: Dave Jones <davej@redhat.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/udp.h b/include/net/udp.h
index b30a71a..74c10ec 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -181,6 +181,7 @@ extern int udp_get_port(struct sock *sk, unsigned short snum,
 extern void udp_err(struct sk_buff *, u32);
 extern int udp_sendmsg(struct kiocb *iocb, struct sock *sk,
 			    struct msghdr *msg, size_t len);
+extern int udp_push_pending_frames(struct sock *sk);
 extern void udp_flush_pending_frames(struct sock *sk);
 extern int udp_rcv(struct sk_buff *skb);
 extern int udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 959502a..6b270e5 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -800,7 +800,7 @@ send:
 /*
  * Push out all pending data as one UDP datagram. Socket is locked.
  */
-static int udp_push_pending_frames(struct sock *sk)
+int udp_push_pending_frames(struct sock *sk)
 {
 	struct udp_sock  *up = udp_sk(sk);
 	struct inet_sock *inet = inet_sk(sk);
@@ -819,6 +819,7 @@ out:
 	up->pending = 0;
 	return err;
 }
+EXPORT_SYMBOL(udp_push_pending_frames);
 
 int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		size_t len)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index f77e34c..b6f3143 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -959,11 +959,16 @@ static int udp_v6_push_pending_frames(struct sock *sk)
 	struct udphdr *uh;
 	struct udp_sock  *up = udp_sk(sk);
 	struct inet_sock *inet = inet_sk(sk);
-	struct flowi6 *fl6 = &inet->cork.fl.u.ip6;
+	struct flowi6 *fl6;
 	int err = 0;
 	int is_udplite = IS_UDPLITE(sk);
 	__wsum csum = 0;
 
+	if (up->pending == AF_INET)
+		return udp_push_pending_frames(sk);
+
+	fl6 = &inet->cork.fl.u.ip6;
+
 	/* Grab the skbuff where UDP header space exists. */
 	if ((skb = skb_peek(&sk->sk_write_queue)) == NULL)
 		goto out;
-- 
cgit v0.10.2


From 75a493e60ac4bbe2e977e7129d6d8cbb0dd236be Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Tue, 2 Jul 2013 08:04:05 +0200
Subject: ipv6: ip6_append_data_mtu did not care about pmtudisc and frag_size

If the socket had an IPV6_MTU value set, ip6_append_data_mtu lost track
of this when appending the second frame on a corked socket. This results
in the following splat:

[37598.993962] ------------[ cut here ]------------
[37598.994008] kernel BUG at net/core/skbuff.c:2064!
[37598.994008] invalid opcode: 0000 [#1] SMP
[37598.994008] Modules linked in: tcp_lp uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media vfat fat usb_storage fuse ebtable_nat xt_CHECKSUM bridge stp llc ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat
+nf_nat_ipv4 nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter ebtables ip6table_filter ip6_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi
+scsi_transport_iscsi rfcomm bnep iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant arc4 iwldvm mac80211 snd_hda_intel acpi_cpufreq mperf coretemp snd_hda_codec microcode cdc_wdm cdc_acm
[37598.994008]  snd_hwdep cdc_ether snd_seq snd_seq_device usbnet mii joydev btusb snd_pcm bluetooth i2c_i801 e1000e lpc_ich mfd_core ptp iwlwifi pps_core snd_page_alloc mei cfg80211 snd_timer thinkpad_acpi snd tpm_tis soundcore rfkill tpm tpm_bios vhost_net tun macvtap macvlan kvm_intel kvm uinput binfmt_misc
+dm_crypt i915 i2c_algo_bit drm_kms_helper drm i2c_core wmi video
[37598.994008] CPU 0
[37598.994008] Pid: 27320, comm: t2 Not tainted 3.9.6-200.fc18.x86_64 #1 LENOVO 27744PG/27744PG
[37598.994008] RIP: 0010:[<ffffffff815443a5>]  [<ffffffff815443a5>] skb_copy_and_csum_bits+0x325/0x330
[37598.994008] RSP: 0018:ffff88003670da18  EFLAGS: 00010202
[37598.994008] RAX: ffff88018105c018 RBX: 0000000000000004 RCX: 00000000000006c0
[37598.994008] RDX: ffff88018105a6c0 RSI: ffff88018105a000 RDI: ffff8801e1b0aa00
[37598.994008] RBP: ffff88003670da78 R08: 0000000000000000 R09: ffff88018105c040
[37598.994008] R10: ffff8801e1b0aa00 R11: 0000000000000000 R12: 000000000000fff8
[37598.994008] R13: 00000000000004fc R14: 00000000ffff0504 R15: 0000000000000000
[37598.994008] FS:  00007f28eea59740(0000) GS:ffff88023bc00000(0000) knlGS:0000000000000000
[37598.994008] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[37598.994008] CR2: 0000003d935789e0 CR3: 00000000365cb000 CR4: 00000000000407f0
[37598.994008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[37598.994008] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[37598.994008] Process t2 (pid: 27320, threadinfo ffff88003670c000, task ffff88022c162ee0)
[37598.994008] Stack:
[37598.994008]  ffff88022e098a00 ffff88020f973fc0 0000000000000008 00000000000004c8
[37598.994008]  ffff88020f973fc0 00000000000004c4 ffff88003670da78 ffff8801e1b0a200
[37598.994008]  0000000000000018 00000000000004c8 ffff88020f973fc0 00000000000004c4
[37598.994008] Call Trace:
[37598.994008]  [<ffffffff815fc21f>] ip6_append_data+0xccf/0xfe0
[37598.994008]  [<ffffffff8158d9f0>] ? ip_copy_metadata+0x1a0/0x1a0
[37598.994008]  [<ffffffff81661f66>] ? _raw_spin_lock_bh+0x16/0x40
[37598.994008]  [<ffffffff8161548d>] udpv6_sendmsg+0x1ed/0xc10
[37598.994008]  [<ffffffff812a2845>] ? sock_has_perm+0x75/0x90
[37598.994008]  [<ffffffff815c3693>] inet_sendmsg+0x63/0xb0
[37598.994008]  [<ffffffff812a2973>] ? selinux_socket_sendmsg+0x23/0x30
[37598.994008]  [<ffffffff8153a450>] sock_sendmsg+0xb0/0xe0
[37598.994008]  [<ffffffff810135d1>] ? __switch_to+0x181/0x4a0
[37598.994008]  [<ffffffff8153d97d>] sys_sendto+0x12d/0x180
[37598.994008]  [<ffffffff810dfb64>] ? __audit_syscall_entry+0x94/0xf0
[37598.994008]  [<ffffffff81020ed1>] ? syscall_trace_enter+0x231/0x240
[37598.994008]  [<ffffffff8166a7e7>] tracesys+0xdd/0xe2
[37598.994008] Code: fe 07 00 00 48 c7 c7 04 28 a6 81 89 45 a0 4c 89 4d b8 44 89 5d a8 e8 1b ac b1 ff 44 8b 5d a8 4c 8b 4d b8 8b 45 a0 e9 cf fe ff ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 e5 48
[37598.994008] RIP  [<ffffffff815443a5>] skb_copy_and_csum_bits+0x325/0x330
[37598.994008]  RSP <ffff88003670da18>
[37599.007323] ---[ end trace d69f6a17f8ac8eee ]---

While there, also check if path mtu discovery is activated for this
socket. The logic was adapted from ip6_append_data when first writing
on the corked socket.

This bug was introduced with commit
0c1833797a5a6ec23ea9261d979aa18078720b74 ("ipv6: fix incorrect ipsec
fragment").

v2:
a) Replace IPV6_PMTU_DISC_DO with IPV6_PMTUDISC_PROBE.
b) Don't pass ipv6_pinfo to ip6_append_data_mtu (suggestion by Gao
   feng, thanks!).
c) Change mtu to unsigned int, else we get a warning about
   non-matching types because of the min()-macro type-check.

Acked-by: Gao feng <gaofeng@cn.fujitsu.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index dae1949..be7589e 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1093,11 +1093,12 @@ static inline struct ipv6_rt_hdr *ip6_rthdr_dup(struct ipv6_rt_hdr *src,
 	return src ? kmemdup(src, (src->hdrlen + 1) * 8, gfp) : NULL;
 }
 
-static void ip6_append_data_mtu(int *mtu,
+static void ip6_append_data_mtu(unsigned int *mtu,
 				int *maxfraglen,
 				unsigned int fragheaderlen,
 				struct sk_buff *skb,
-				struct rt6_info *rt)
+				struct rt6_info *rt,
+				bool pmtuprobe)
 {
 	if (!(rt->dst.flags & DST_XFRM_TUNNEL)) {
 		if (skb == NULL) {
@@ -1109,7 +1110,9 @@ static void ip6_append_data_mtu(int *mtu,
 			 * this fragment is not first, the headers
 			 * space is regarded as data space.
 			 */
-			*mtu = dst_mtu(rt->dst.path);
+			*mtu = min(*mtu, pmtuprobe ?
+				   rt->dst.dev->mtu :
+				   dst_mtu(rt->dst.path));
 		}
 		*maxfraglen = ((*mtu - fragheaderlen) & ~7)
 			      + fragheaderlen - sizeof(struct frag_hdr);
@@ -1126,11 +1129,10 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct inet_cork *cork;
 	struct sk_buff *skb, *skb_prev = NULL;
-	unsigned int maxfraglen, fragheaderlen;
+	unsigned int maxfraglen, fragheaderlen, mtu;
 	int exthdrlen;
 	int dst_exthdrlen;
 	int hh_len;
-	int mtu;
 	int copy;
 	int err;
 	int offset = 0;
@@ -1287,7 +1289,9 @@ alloc_new_skb:
 			/* update mtu and maxfraglen if necessary */
 			if (skb == NULL || skb_prev == NULL)
 				ip6_append_data_mtu(&mtu, &maxfraglen,
-						    fragheaderlen, skb, rt);
+						    fragheaderlen, skb, rt,
+						    np->pmtudisc ==
+						    IPV6_PMTUDISC_PROBE);
 
 			skb_prev = skb;
 
-- 
cgit v0.10.2


From 7e6d4da837385d9aa2e5fd84e0a6042cddc9e708 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Tue, 2 Jul 2013 10:55:31 +0200
Subject: nlmon: use standard rtnetlink link api for add/del devices

It is not nice when netdev is created right after module load and with
some implicit name. So rather change nlmon to use standard rtnl link API.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
index a0baf56..b57ce5f 100644
--- a/drivers/net/nlmon.c
+++ b/drivers/net/nlmon.c
@@ -4,6 +4,7 @@
 #include <linux/netlink.h>
 #include <net/net_namespace.h>
 #include <linux/if_arp.h>
+#include <net/rtnetlink.h>
 
 struct pcpu_lstats {
 	u64 packets;
@@ -56,16 +57,24 @@ static void nlmon_dev_uninit(struct net_device *dev)
 	free_percpu(dev->lstats);
 }
 
-static struct netlink_tap nlmon_tap;
+struct nlmon {
+	struct netlink_tap nt;
+};
 
 static int nlmon_open(struct net_device *dev)
 {
-	return netlink_add_tap(&nlmon_tap);
+	struct nlmon *nlmon = netdev_priv(dev);
+
+	nlmon->nt.dev = dev;
+	nlmon->nt.module = THIS_MODULE;
+	return netlink_add_tap(&nlmon->nt);
 }
 
 static int nlmon_close(struct net_device *dev)
 {
-	return netlink_remove_tap(&nlmon_tap);
+	struct nlmon *nlmon = netdev_priv(dev);
+
+	return netlink_remove_tap(&nlmon->nt);
 }
 
 static struct rtnl_link_stats64 *
@@ -119,10 +128,6 @@ static const struct net_device_ops nlmon_ops = {
 	.ndo_change_mtu = nlmon_change_mtu,
 };
 
-static struct netlink_tap nlmon_tap __read_mostly = {
-	.module = THIS_MODULE,
-};
-
 static void nlmon_setup(struct net_device *dev)
 {
 	dev->type = ARPHRD_NETLINK;
@@ -142,27 +147,28 @@ static void nlmon_setup(struct net_device *dev)
 	dev->mtu = NLMSG_GOODSIZE;
 }
 
-static __init int nlmon_register(void)
+static int nlmon_validate(struct nlattr *tb[], struct nlattr *data[])
 {
-	int err;
-	struct net_device *nldev;
-
-	nldev = nlmon_tap.dev = alloc_netdev(0, "netlink", nlmon_setup);
-	if (unlikely(nldev == NULL))
-		return -ENOMEM;
+	if (tb[IFLA_ADDRESS])
+		return -EINVAL;
+	return 0;
+}
 
-	err = register_netdev(nldev);
-	if (unlikely(err))
-		free_netdev(nldev);
+static struct rtnl_link_ops nlmon_link_ops __read_mostly = {
+	.kind			= "nlmon",
+	.priv_size		= sizeof(struct nlmon),
+	.setup			= nlmon_setup,
+	.validate		= nlmon_validate,
+};
 
-	return err;
+static __init int nlmon_register(void)
+{
+	return rtnl_link_register(&nlmon_link_ops);
 }
 
 static __exit void nlmon_unregister(void)
 {
-	struct net_device *nldev = nlmon_tap.dev;
-
-	unregister_netdev(nldev);
+	rtnl_link_unregister(&nlmon_link_ops);
 }
 
 module_init(nlmon_register);
@@ -172,3 +178,4 @@ MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Daniel Borkmann <dborkman@redhat.com>");
 MODULE_AUTHOR("Mathieu Geli <geli@enseirb.fr>");
 MODULE_DESCRIPTION("Netlink monitoring device");
+MODULE_ALIAS_RTNL_LINK("nlmon");
-- 
cgit v0.10.2


From 1bc2774d866444c5b316fd1dc2b782f20c762cf4 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Tue, 2 Jul 2013 23:22:47 +0300
Subject: net: convert lls to use time_in_range()

Time in range will fail safely if we move to a different cpu with an
extremely large clock skew.
Add time_in_range64() and convert lls to use it.

changelog:
v2
- fixed double call to sched_clock in can_poll_ll
- fixed checkpatchisms

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/fs/select.c b/fs/select.c
index 3654075..f28a585 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -403,7 +403,8 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 	int retval, i, timed_out = 0;
 	unsigned long slack = 0;
 	unsigned int ll_flag = ll_get_flag();
-	u64 ll_time = ll_end_time();
+	u64 ll_start = ll_start_time(ll_flag);
+	u64 ll_time = ll_run_time();
 
 	rcu_read_lock();
 	retval = max_select_fd(n, fds);
@@ -498,7 +499,7 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 		}
 
 		/* only if on, have sockets with POLL_LL and not out of time */
-		if (ll_flag && can_ll && can_poll_ll(ll_time))
+		if (ll_flag && can_ll && can_poll_ll(ll_start, ll_time))
 			continue;
 
 		/*
@@ -770,7 +771,8 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 	int timed_out = 0, count = 0;
 	unsigned long slack = 0;
 	unsigned int ll_flag = ll_get_flag();
-	u64 ll_time = ll_end_time();
+	u64 ll_start = ll_start_time(ll_flag);
+	u64 ll_time = ll_run_time();
 
 	/* Optimise the no-wait case */
 	if (end_time && !end_time->tv_sec && !end_time->tv_nsec) {
@@ -819,7 +821,7 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 			break;
 
 		/* only if on, have sockets with POLL_LL and not out of time */
-		if (ll_flag && can_ll && can_poll_ll(ll_time))
+		if (ll_flag && can_ll && can_poll_ll(ll_start, ll_time))
 			continue;
 
 		/*
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 8fb8edf..97ba4e7 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -139,6 +139,10 @@ static inline u64 get_jiffies_64(void)
 	 ((__s64)(a) - (__s64)(b) >= 0))
 #define time_before_eq64(a,b)	time_after_eq64(b,a)
 
+#define time_in_range64(a, b, c) \
+	(time_after_eq64(a, b) && \
+	 time_before_eq64(a, c))
+
 /*
  * These four macros compare jiffies and 'a' for convenience.
  */
diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index 6c06f7c..b76f004 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -67,19 +67,23 @@ static inline u64 ll_sched_clock(void)
 /* we don't mind a ~2.5% imprecision so <<10 instead of *1000
  * sk->sk_ll_usec is a u_int so this can't overflow
  */
-static inline u64 ll_sk_end_time(struct sock *sk)
+static inline u64 ll_sk_run_time(struct sock *sk)
 {
-	return ((u64)ACCESS_ONCE(sk->sk_ll_usec) << 10) + ll_sched_clock();
+	return (u64)ACCESS_ONCE(sk->sk_ll_usec) << 10;
 }
 
 /* in poll/select we use the global sysctl_net_ll_poll value
  * only call sched_clock() if enabled
  */
-static inline u64 ll_end_time(void)
+static inline u64 ll_run_time(void)
 {
-	u64 end_time = ACCESS_ONCE(sysctl_net_ll_poll);
+	return (u64)ACCESS_ONCE(sysctl_net_ll_poll) << 10;
+}
 
-	return end_time ? (end_time << 10) + ll_sched_clock() : 0;
+/* if flag is not set we don't need to know the time */
+static inline u64 ll_start_time(unsigned int flag)
+{
+	return flag ? ll_sched_clock() : 0;
 }
 
 static inline bool sk_valid_ll(struct sock *sk)
@@ -88,9 +92,12 @@ static inline bool sk_valid_ll(struct sock *sk)
 	       !need_resched() && !signal_pending(current);
 }
 
-static inline bool can_poll_ll(u64 end_time)
+/* careful! time_in_range64 will evaluate now twice */
+static inline bool can_poll_ll(u64 start_time, u64 run_time)
 {
-	return !time_after64(ll_sched_clock(), end_time);
+	u64 now = ll_sched_clock();
+
+	return time_in_range64(now, start_time, start_time + run_time);
 }
 
 /* when used in sock_poll() nonblock is known at compile time to be true
@@ -98,7 +105,8 @@ static inline bool can_poll_ll(u64 end_time)
  */
 static inline bool sk_poll_ll(struct sock *sk, int nonblock)
 {
-	u64 end_time = nonblock ? 0 : ll_sk_end_time(sk);
+	u64 start_time = ll_start_time(!nonblock);
+	u64 run_time = ll_sk_run_time(sk);
 	const struct net_device_ops *ops;
 	struct napi_struct *napi;
 	int rc = false;
@@ -129,7 +137,7 @@ static inline bool sk_poll_ll(struct sock *sk, int nonblock)
 					 LINUX_MIB_LOWLATENCYRXPACKETS, rc);
 
 	} while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) &&
-		 can_poll_ll(end_time));
+		 can_poll_ll(start_time, run_time));
 
 	rc = !skb_queue_empty(&sk->sk_receive_queue);
 out:
-- 
cgit v0.10.2


From 06a23fe31ca3992863721f21bdb0307af93da807 Mon Sep 17 00:00:00 2001
From: Isaku Yamahata <yamahata@valinux.co.jp>
Date: Tue, 2 Jul 2013 20:30:10 +0900
Subject: core/dev: set pkt_type after eth_type_trans() in dev_forward_skb()

The dev_forward_skb() assignment of pkt_type should be done
after the call to eth_type_trans().

ip-encapsulated packets can be handled by localhost. But skb->pkt_type
can be PACKET_OTHERHOST when packet comes via veth into ip tunnel device.
In that case, the packet is dropped by ip_rcv().
Although this example uses gretap. l2tp-eth also has same issue.
For l2tp-eth case, add dummy device for ip address and ip l2tp command.

netns A |                     root netns                      | netns B
   veth<->veth=bridge=gretap <-loop back-> gretap=bridge=veth<->veth

arp packet ->
pkt_type
         BROADCAST------------>ip_rcv()------------------------>

                                                             <- arp reply
                                                                pkt_type
                               ip_rcv()<-----------------OTHERHOST
                               drop

sample operations
  ip link add tapa type gretap remote 172.17.107.4 local 172.17.107.3
  ip link add tapb type gretap remote 172.17.107.3 local 172.17.107.4
  ip link set tapa up
  ip link set tapb up
  ip address add 172.17.107.3 dev tapa
  ip address add 172.17.107.4 dev tapb
  ip route get 172.17.107.3
  > local 172.17.107.3 dev lo  src 172.17.107.3
  >    cache <local>
  ip route get 172.17.107.4
  > local 172.17.107.4 dev lo  src 172.17.107.4
  >    cache <local>
  ip link add vetha type veth peer name vetha-peer
  ip link add vethb type veth peer name vethb-peer
  brctl addbr bra
  brctl addbr brb
  brctl addif bra tapa
  brctl addif bra vetha-peer
  brctl addif brb tapb
  brctl addif brb vethb-peer
  brctl show
  > bridge name     bridge id               STP enabled     interfaces
  > bra             8000.6ea21e758ff1       no              tapa
  >                                                         vetha-peer
  > brb             8000.420020eb92d5       no              tapb
  >                                                         vethb-peer
  ip link set vetha-peer up
  ip link set vethb-peer up
  ip link set bra up
  ip link set brb up
  ip netns add a
  ip netns add b
  ip link set vetha netns a
  ip link set vethb netns b
  ip netns exec a ip address add 10.0.0.3/24 dev vetha
  ip netns exec b ip address add 10.0.0.4/24 dev vethb
  ip netns exec a ip link set vetha up
  ip netns exec b ip link set vethb up
  ip netns exec a arping -I vetha 10.0.0.4
  ARPING 10.0.0.4 from 10.0.0.3 vetha
  ^CSent 2 probes (2 broadcast(s))
  Received 0 response(s)

Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Hong Zhiguo <honkiko@gmail.com>
Cc: Rami Rosen <ramirose@gmail.com>
Cc: Tom Parkin <tparkin@katalix.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Cc: Jesse Gross <jesse@nicira.com>
Cc: dev@openvswitch.org
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/dev.c b/net/core/dev.c
index 370354a..6a93cd8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1659,6 +1659,12 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 	}
 	skb_scrub_packet(skb);
 	skb->protocol = eth_type_trans(skb, dev);
+
+	/* eth_type_trans() can set pkt_type.
+	 * clear pkt_type _after_ calling eth_type_trans()
+	 */
+	skb->pkt_type = PACKET_HOST;
+
 	return netif_rx(skb);
 }
 EXPORT_SYMBOL_GPL(dev_forward_skb);
-- 
cgit v0.10.2


From 83d7af64ac9eaf4f4db7228677bc25f23c383790 Mon Sep 17 00:00:00 2001
From: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Date: Tue, 2 Jul 2013 14:12:36 +0200
Subject: stmmac: dity-up and rework the driver debug levels

Prior this patch, the internal debugging was based on ifdef
and also some printk were useless because many info are exposed
via ethtool.
This patch remove all the ifdef defines and now we only use
netif_msg_XXX levels.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 7788fbe..9911b93 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -38,16 +38,6 @@
 #include "descs.h"
 #include "mmc.h"
 
-#undef CHIP_DEBUG_PRINT
-/* Turn-on extra printk debug for MAC core, dma and descriptors */
-/* #define CHIP_DEBUG_PRINT */
-
-#ifdef CHIP_DEBUG_PRINT
-#define CHIP_DBG(fmt, args...)  printk(fmt, ## args)
-#else
-#define CHIP_DBG(fmt, args...)  do { } while (0)
-#endif
-
 /* Synopsys Core versions */
 #define	DWMAC_CORE_3_40	0x34
 #define	DWMAC_CORE_3_50	0x35
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
index 7e05e8d..cdd9268 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -91,8 +91,8 @@ static void dwmac1000_set_filter(struct net_device *dev, int id)
 	unsigned int value = 0;
 	unsigned int perfect_addr_number;
 
-	CHIP_DBG(KERN_INFO "%s: # mcasts %d, # unicast %d\n",
-		 __func__, netdev_mc_count(dev), netdev_uc_count(dev));
+	pr_debug("%s: # mcasts %d, # unicast %d\n", __func__,
+		 netdev_mc_count(dev), netdev_uc_count(dev));
 
 	if (dev->flags & IFF_PROMISC)
 		value = GMAC_FRAME_FILTER_PR;
@@ -152,7 +152,7 @@ static void dwmac1000_set_filter(struct net_device *dev, int id)
 #endif
 	writel(value, ioaddr + GMAC_FRAME_FILTER);
 
-	CHIP_DBG(KERN_INFO "\tFilter: 0x%08x\n\tHash: HI 0x%08x, LO 0x%08x\n",
+	pr_debug("\tFilter: 0x%08x\n\tHash: HI 0x%08x, LO 0x%08x\n",
 		 readl(ioaddr + GMAC_FRAME_FILTER),
 		 readl(ioaddr + GMAC_HASH_HIGH), readl(ioaddr + GMAC_HASH_LOW));
 }
@@ -162,18 +162,18 @@ static void dwmac1000_flow_ctrl(void __iomem *ioaddr, unsigned int duplex,
 {
 	unsigned int flow = 0;
 
-	CHIP_DBG(KERN_DEBUG "GMAC Flow-Control:\n");
+	pr_debug("GMAC Flow-Control:\n");
 	if (fc & FLOW_RX) {
-		CHIP_DBG(KERN_DEBUG "\tReceive Flow-Control ON\n");
+		pr_debug("\tReceive Flow-Control ON\n");
 		flow |= GMAC_FLOW_CTRL_RFE;
 	}
 	if (fc & FLOW_TX) {
-		CHIP_DBG(KERN_DEBUG "\tTransmit Flow-Control ON\n");
+		pr_debug("\tTransmit Flow-Control ON\n");
 		flow |= GMAC_FLOW_CTRL_TFE;
 	}
 
 	if (duplex) {
-		CHIP_DBG(KERN_DEBUG "\tduplex mode: PAUSE %d\n", pause_time);
+		pr_debug("\tduplex mode: PAUSE %d\n", pause_time);
 		flow |= (pause_time << GMAC_FLOW_CTRL_PT_SHIFT);
 	}
 
@@ -185,11 +185,11 @@ static void dwmac1000_pmt(void __iomem *ioaddr, unsigned long mode)
 	unsigned int pmt = 0;
 
 	if (mode & WAKE_MAGIC) {
-		CHIP_DBG(KERN_DEBUG "GMAC: WOL Magic frame\n");
+		pr_debug("GMAC: WOL Magic frame\n");
 		pmt |= power_down | magic_pkt_en;
 	}
 	if (mode & WAKE_UCAST) {
-		CHIP_DBG(KERN_DEBUG "GMAC: WOL on global unicast\n");
+		pr_debug("GMAC: WOL on global unicast\n");
 		pmt |= global_unicast;
 	}
 
@@ -203,23 +203,13 @@ static int dwmac1000_irq_status(void __iomem *ioaddr,
 	int ret = 0;
 
 	/* Not used events (e.g. MMC interrupts) are not handled. */
-	if ((intr_status & mmc_tx_irq)) {
-		CHIP_DBG(KERN_INFO "GMAC: MMC tx interrupt: 0x%08x\n",
-			 readl(ioaddr + GMAC_MMC_TX_INTR));
+	if ((intr_status & mmc_tx_irq))
 		x->mmc_tx_irq_n++;
-	}
-	if (unlikely(intr_status & mmc_rx_irq)) {
-		CHIP_DBG(KERN_INFO "GMAC: MMC rx interrupt: 0x%08x\n",
-			 readl(ioaddr + GMAC_MMC_RX_INTR));
+	if (unlikely(intr_status & mmc_rx_irq))
 		x->mmc_rx_irq_n++;
-	}
-	if (unlikely(intr_status & mmc_rx_csum_offload_irq)) {
-		CHIP_DBG(KERN_INFO "GMAC: MMC rx csum offload: 0x%08x\n",
-			 readl(ioaddr + GMAC_MMC_RX_CSUM_OFFLOAD));
+	if (unlikely(intr_status & mmc_rx_csum_offload_irq))
 		x->mmc_rx_csum_offload_irq_n++;
-	}
 	if (unlikely(intr_status & pmt_irq)) {
-		CHIP_DBG(KERN_INFO "GMAC: received Magic frame\n");
 		/* clear the PMT bits 5 and 6 by reading the PMT status reg */
 		readl(ioaddr + GMAC_PMT);
 		x->irq_receive_pmt_irq_n++;
@@ -229,32 +219,22 @@ static int dwmac1000_irq_status(void __iomem *ioaddr,
 		/* Clean LPI interrupt by reading the Reg 12 */
 		ret = readl(ioaddr + LPI_CTRL_STATUS);
 
-		if (ret & LPI_CTRL_STATUS_TLPIEN) {
-			CHIP_DBG(KERN_INFO "GMAC TX entered in LPI\n");
+		if (ret & LPI_CTRL_STATUS_TLPIEN)
 			x->irq_tx_path_in_lpi_mode_n++;
-		}
-		if (ret & LPI_CTRL_STATUS_TLPIEX) {
-			CHIP_DBG(KERN_INFO "GMAC TX exit from LPI\n");
+		if (ret & LPI_CTRL_STATUS_TLPIEX)
 			x->irq_tx_path_exit_lpi_mode_n++;
-		}
-		if (ret & LPI_CTRL_STATUS_RLPIEN) {
-			CHIP_DBG(KERN_INFO "GMAC RX entered in LPI\n");
+		if (ret & LPI_CTRL_STATUS_RLPIEN)
 			x->irq_rx_path_in_lpi_mode_n++;
-		}
-		if (ret & LPI_CTRL_STATUS_RLPIEX) {
-			CHIP_DBG(KERN_INFO "GMAC RX exit from LPI\n");
+		if (ret & LPI_CTRL_STATUS_RLPIEX)
 			x->irq_rx_path_exit_lpi_mode_n++;
-		}
 	}
 
 	if ((intr_status & pcs_ane_irq) || (intr_status & pcs_link_irq)) {
-		CHIP_DBG(KERN_INFO "GMAC PCS ANE IRQ\n");
 		readl(ioaddr + GMAC_AN_STATUS);
 		x->irq_pcs_ane_n++;
 	}
 	if (intr_status & rgmii_irq) {
 		u32 status = readl(ioaddr + GMAC_S_R_GMII);
-		CHIP_DBG(KERN_INFO "GMAC RGMII/SGMII interrupt\n");
 		x->irq_rgmii_n++;
 
 		/* Save and dump the link status. */
@@ -271,11 +251,12 @@ static int dwmac1000_irq_status(void __iomem *ioaddr,
 				x->pcs_speed = SPEED_10;
 
 			x->pcs_link = 1;
-			pr_debug("Link is Up - %d/%s\n", (int)x->pcs_speed,
+			pr_debug("%s: Link is Up - %d/%s\n", __func__,
+				 (int)x->pcs_speed,
 				 x->pcs_duplex ? "Full" : "Half");
 		} else {
 			x->pcs_link = 0;
-			pr_debug("Link is Down\n");
+			pr_debug("%s: Link is Down\n", __func__);
 		}
 	}
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
index 2c431b6..0c2058a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_dma.c
@@ -116,7 +116,7 @@ static void dwmac1000_dma_operation_mode(void __iomem *ioaddr, int txmode,
 	u32 csr6 = readl(ioaddr + DMA_CONTROL);
 
 	if (txmode == SF_DMA_MODE) {
-		CHIP_DBG(KERN_DEBUG "GMAC: enable TX store and forward mode\n");
+		pr_debug("GMAC: enable TX store and forward mode\n");
 		/* Transmit COE type 2 cannot be done in cut-through mode. */
 		csr6 |= DMA_CONTROL_TSF;
 		/* Operating on second frame increase the performance
@@ -124,8 +124,7 @@ static void dwmac1000_dma_operation_mode(void __iomem *ioaddr, int txmode,
 		 */
 		csr6 |= DMA_CONTROL_OSF;
 	} else {
-		CHIP_DBG(KERN_DEBUG "GMAC: disabling TX SF (threshold %d)\n",
-			 txmode);
+		pr_debug("GMAC: disabling TX SF (threshold %d)\n", txmode);
 		csr6 &= ~DMA_CONTROL_TSF;
 		csr6 &= DMA_CONTROL_TC_TX_MASK;
 		/* Set the transmit threshold */
@@ -142,11 +141,10 @@ static void dwmac1000_dma_operation_mode(void __iomem *ioaddr, int txmode,
 	}
 
 	if (rxmode == SF_DMA_MODE) {
-		CHIP_DBG(KERN_DEBUG "GMAC: enable RX store and forward mode\n");
+		pr_debug("GMAC: enable RX store and forward mode\n");
 		csr6 |= DMA_CONTROL_RSF;
 	} else {
-		CHIP_DBG(KERN_DEBUG "GMAC: disable RX SF mode (threshold %d)\n",
-			 rxmode);
+		pr_debug("GMAC: disable RX SF mode (threshold %d)\n", rxmode);
 		csr6 &= ~DMA_CONTROL_RSF;
 		csr6 &= DMA_CONTROL_TC_RX_MASK;
 		if (rxmode <= 32)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
index 007bb2b..5857d67 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
@@ -135,10 +135,6 @@ static void dwmac100_set_filter(struct net_device *dev, int id)
 	}
 
 	writel(value, ioaddr + MAC_CONTROL);
-
-	CHIP_DBG(KERN_INFO "%s: Filter: 0x%08x Hash: HI 0x%08x, LO 0x%08x\n",
-		 __func__, readl(ioaddr + MAC_CONTROL),
-		 readl(ioaddr + MAC_HASH_HIGH), readl(ioaddr + MAC_HASH_LOW));
 }
 
 static void dwmac100_flow_ctrl(void __iomem *ioaddr, unsigned int duplex,
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
index 67551c1..7d1dce9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_dma.c
@@ -90,14 +90,14 @@ static void dwmac100_dump_dma_regs(void __iomem *ioaddr)
 {
 	int i;
 
-	CHIP_DBG(KERN_DEBUG "DWMAC 100 DMA CSR\n");
+	pr_debug("DWMAC 100 DMA CSR\n");
 	for (i = 0; i < 9; i++)
 		pr_debug("\t CSR%d (offset 0x%x): 0x%08x\n", i,
 			 (DMA_BUS_MODE + i * 4),
 			 readl(ioaddr + DMA_BUS_MODE + i * 4));
-	CHIP_DBG(KERN_DEBUG "\t CSR20 (offset 0x%x): 0x%08x\n",
-		 DMA_CUR_TX_BUF_ADDR, readl(ioaddr + DMA_CUR_TX_BUF_ADDR));
-	CHIP_DBG(KERN_DEBUG "\t CSR21 (offset 0x%x): 0x%08x\n",
+
+	pr_debug("\tCSR20 (0x%x): 0x%08x, CSR21 (0x%x): 0x%08x\n",
+		 DMA_CUR_TX_BUF_ADDR, readl(ioaddr + DMA_CUR_TX_BUF_ADDR),
 		 DMA_CUR_RX_BUF_ADDR, readl(ioaddr + DMA_CUR_RX_BUF_ADDR));
 }
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
index 491d7e9..484e3cf 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
@@ -24,13 +24,6 @@
 #include "common.h"
 #include "dwmac_dma.h"
 
-#undef DWMAC_DMA_DEBUG
-#ifdef DWMAC_DMA_DEBUG
-#define DWMAC_LIB_DBG(fmt, args...)  printk(fmt, ## args)
-#else
-#define DWMAC_LIB_DBG(fmt, args...)  do { } while (0)
-#endif
-
 #define GMAC_HI_REG_AE		0x80000000
 
 /* CSR1 enables the transmit DMA to check for new descriptor */
@@ -85,24 +78,24 @@ static void show_tx_process_state(unsigned int status)
 
 	switch (state) {
 	case 0:
-		pr_info("- TX (Stopped): Reset or Stop command\n");
+		pr_debug("- TX (Stopped): Reset or Stop command\n");
 		break;
 	case 1:
-		pr_info("- TX (Running):Fetching the Tx desc\n");
+		pr_debug("- TX (Running):Fetching the Tx desc\n");
 		break;
 	case 2:
-		pr_info("- TX (Running): Waiting for end of tx\n");
+		pr_debug("- TX (Running): Waiting for end of tx\n");
 		break;
 	case 3:
-		pr_info("- TX (Running): Reading the data "
+		pr_debug("- TX (Running): Reading the data "
 		       "and queuing the data into the Tx buf\n");
 		break;
 	case 6:
-		pr_info("- TX (Suspended): Tx Buff Underflow "
+		pr_debug("- TX (Suspended): Tx Buff Underflow "
 		       "or an unavailable Transmit descriptor\n");
 		break;
 	case 7:
-		pr_info("- TX (Running): Closing Tx descriptor\n");
+		pr_debug("- TX (Running): Closing Tx descriptor\n");
 		break;
 	default:
 		break;
@@ -116,29 +109,29 @@ static void show_rx_process_state(unsigned int status)
 
 	switch (state) {
 	case 0:
-		pr_info("- RX (Stopped): Reset or Stop command\n");
+		pr_debug("- RX (Stopped): Reset or Stop command\n");
 		break;
 	case 1:
-		pr_info("- RX (Running): Fetching the Rx desc\n");
+		pr_debug("- RX (Running): Fetching the Rx desc\n");
 		break;
 	case 2:
-		pr_info("- RX (Running):Checking for end of pkt\n");
+		pr_debug("- RX (Running):Checking for end of pkt\n");
 		break;
 	case 3:
-		pr_info("- RX (Running): Waiting for Rx pkt\n");
+		pr_debug("- RX (Running): Waiting for Rx pkt\n");
 		break;
 	case 4:
-		pr_info("- RX (Suspended): Unavailable Rx buf\n");
+		pr_debug("- RX (Suspended): Unavailable Rx buf\n");
 		break;
 	case 5:
-		pr_info("- RX (Running): Closing Rx descriptor\n");
+		pr_debug("- RX (Running): Closing Rx descriptor\n");
 		break;
 	case 6:
-		pr_info("- RX(Running): Flushing the current frame"
+		pr_debug("- RX(Running): Flushing the current frame"
 		       " from the Rx buf\n");
 		break;
 	case 7:
-		pr_info("- RX (Running): Queuing the Rx frame"
+		pr_debug("- RX (Running): Queuing the Rx frame"
 		       " from the Rx buf into memory\n");
 		break;
 	default:
@@ -154,51 +147,37 @@ int dwmac_dma_interrupt(void __iomem *ioaddr,
 	/* read the status register (CSR5) */
 	u32 intr_status = readl(ioaddr + DMA_STATUS);
 
-	DWMAC_LIB_DBG(KERN_INFO "%s: [CSR5: 0x%08x]\n", __func__, intr_status);
 #ifdef DWMAC_DMA_DEBUG
-	/* It displays the DMA process states (CSR5 register) */
+	/* Enable it to monitor DMA rx/tx status in case of critical problems */
+	pr_debug("%s: [CSR5: 0x%08x]\n", __func__, intr_status);
 	show_tx_process_state(intr_status);
 	show_rx_process_state(intr_status);
 #endif
 	/* ABNORMAL interrupts */
 	if (unlikely(intr_status & DMA_STATUS_AIS)) {
-		DWMAC_LIB_DBG(KERN_INFO "CSR5[15] DMA ABNORMAL IRQ: ");
 		if (unlikely(intr_status & DMA_STATUS_UNF)) {
-			DWMAC_LIB_DBG(KERN_INFO "transmit underflow\n");
 			ret = tx_hard_error_bump_tc;
 			x->tx_undeflow_irq++;
 		}
-		if (unlikely(intr_status & DMA_STATUS_TJT)) {
-			DWMAC_LIB_DBG(KERN_INFO "transmit jabber\n");
+		if (unlikely(intr_status & DMA_STATUS_TJT))
 			x->tx_jabber_irq++;
-		}
-		if (unlikely(intr_status & DMA_STATUS_OVF)) {
-			DWMAC_LIB_DBG(KERN_INFO "recv overflow\n");
+
+		if (unlikely(intr_status & DMA_STATUS_OVF))
 			x->rx_overflow_irq++;
-		}
-		if (unlikely(intr_status & DMA_STATUS_RU)) {
-			DWMAC_LIB_DBG(KERN_INFO "receive buffer unavailable\n");
+
+		if (unlikely(intr_status & DMA_STATUS_RU))
 			x->rx_buf_unav_irq++;
-		}
-		if (unlikely(intr_status & DMA_STATUS_RPS)) {
-			DWMAC_LIB_DBG(KERN_INFO "receive process stopped\n");
+		if (unlikely(intr_status & DMA_STATUS_RPS))
 			x->rx_process_stopped_irq++;
-		}
-		if (unlikely(intr_status & DMA_STATUS_RWT)) {
-			DWMAC_LIB_DBG(KERN_INFO "receive watchdog\n");
+		if (unlikely(intr_status & DMA_STATUS_RWT))
 			x->rx_watchdog_irq++;
-		}
-		if (unlikely(intr_status & DMA_STATUS_ETI)) {
-			DWMAC_LIB_DBG(KERN_INFO "transmit early interrupt\n");
+		if (unlikely(intr_status & DMA_STATUS_ETI))
 			x->tx_early_irq++;
-		}
 		if (unlikely(intr_status & DMA_STATUS_TPS)) {
-			DWMAC_LIB_DBG(KERN_INFO "transmit process stopped\n");
 			x->tx_process_stopped_irq++;
 			ret = tx_hard_error;
 		}
 		if (unlikely(intr_status & DMA_STATUS_FBI)) {
-			DWMAC_LIB_DBG(KERN_INFO "fatal bus error\n");
 			x->fatal_bus_error_irq++;
 			ret = tx_hard_error;
 		}
@@ -224,12 +203,11 @@ int dwmac_dma_interrupt(void __iomem *ioaddr,
 	/* Optional hardware blocks, interrupts should be disabled */
 	if (unlikely(intr_status &
 		     (DMA_STATUS_GPI | DMA_STATUS_GMI | DMA_STATUS_GLI)))
-		pr_info("%s: unexpected status %08x\n", __func__, intr_status);
+		pr_warn("%s: unexpected status %08x\n", __func__, intr_status);
 
 	/* Clear the interrupt by writing a logic 1 to the CSR5[15-0] */
 	writel((intr_status & 0x1ffff), ioaddr + DMA_STATUS);
 
-	DWMAC_LIB_DBG(KERN_INFO "\n\n");
 	return ret;
 }
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
index 0fbc8fa..7e6628a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/enh_desc.c
@@ -33,54 +33,40 @@ static int enh_desc_get_tx_status(void *data, struct stmmac_extra_stats *x,
 	struct net_device_stats *stats = (struct net_device_stats *)data;
 
 	if (unlikely(p->des01.etx.error_summary)) {
-		CHIP_DBG(KERN_ERR "GMAC TX error... 0x%08x\n", p->des01.etx);
-		if (unlikely(p->des01.etx.jabber_timeout)) {
-			CHIP_DBG(KERN_ERR "\tjabber_timeout error\n");
+		if (unlikely(p->des01.etx.jabber_timeout))
 			x->tx_jabber++;
-		}
 
 		if (unlikely(p->des01.etx.frame_flushed)) {
-			CHIP_DBG(KERN_ERR "\tframe_flushed error\n");
 			x->tx_frame_flushed++;
 			dwmac_dma_flush_tx_fifo(ioaddr);
 		}
 
 		if (unlikely(p->des01.etx.loss_carrier)) {
-			CHIP_DBG(KERN_ERR "\tloss_carrier error\n");
 			x->tx_losscarrier++;
 			stats->tx_carrier_errors++;
 		}
 		if (unlikely(p->des01.etx.no_carrier)) {
-			CHIP_DBG(KERN_ERR "\tno_carrier error\n");
 			x->tx_carrier++;
 			stats->tx_carrier_errors++;
 		}
-		if (unlikely(p->des01.etx.late_collision)) {
-			CHIP_DBG(KERN_ERR "\tlate_collision error\n");
+		if (unlikely(p->des01.etx.late_collision))
 			stats->collisions += p->des01.etx.collision_count;
-		}
-		if (unlikely(p->des01.etx.excessive_collisions)) {
-			CHIP_DBG(KERN_ERR "\texcessive_collisions\n");
+
+		if (unlikely(p->des01.etx.excessive_collisions))
 			stats->collisions += p->des01.etx.collision_count;
-		}
-		if (unlikely(p->des01.etx.excessive_deferral)) {
-			CHIP_DBG(KERN_INFO "\texcessive tx_deferral\n");
+
+		if (unlikely(p->des01.etx.excessive_deferral))
 			x->tx_deferred++;
-		}
 
 		if (unlikely(p->des01.etx.underflow_error)) {
-			CHIP_DBG(KERN_ERR "\tunderflow error\n");
 			dwmac_dma_flush_tx_fifo(ioaddr);
 			x->tx_underflow++;
 		}
 
-		if (unlikely(p->des01.etx.ip_header_error)) {
-			CHIP_DBG(KERN_ERR "\tTX IP header csum error\n");
+		if (unlikely(p->des01.etx.ip_header_error))
 			x->tx_ip_header_error++;
-		}
 
 		if (unlikely(p->des01.etx.payload_error)) {
-			CHIP_DBG(KERN_ERR "\tAddr/Payload csum error\n");
 			x->tx_payload_error++;
 			dwmac_dma_flush_tx_fifo(ioaddr);
 		}
@@ -88,15 +74,12 @@ static int enh_desc_get_tx_status(void *data, struct stmmac_extra_stats *x,
 		ret = -1;
 	}
 
-	if (unlikely(p->des01.etx.deferred)) {
-		CHIP_DBG(KERN_INFO "GMAC TX status: tx deferred\n");
+	if (unlikely(p->des01.etx.deferred))
 		x->tx_deferred++;
-	}
+
 #ifdef STMMAC_VLAN_TAG_USED
-	if (p->des01.etx.vlan_frame) {
-		CHIP_DBG(KERN_INFO "GMAC TX status: VLAN frame\n");
+	if (p->des01.etx.vlan_frame)
 		x->tx_vlan++;
-	}
 #endif
 
 	return ret;
@@ -123,30 +106,20 @@ static int enh_desc_coe_rdes0(int ipc_err, int type, int payload_err)
 	 *      0 1 1 | COE bypassed.. no IPv4/6 frame
 	 *      0 1 0 | Reserved.
 	 */
-	if (status == 0x0) {
-		CHIP_DBG(KERN_INFO "RX Des0 status: IEEE 802.3 Type frame.\n");
+	if (status == 0x0)
 		ret = llc_snap;
-	} else if (status == 0x4) {
-		CHIP_DBG(KERN_INFO "RX Des0 status: IPv4/6 No CSUM errorS.\n");
+	else if (status == 0x4)
 		ret = good_frame;
-	} else if (status == 0x5) {
-		CHIP_DBG(KERN_ERR "RX Des0 status: IPv4/6 Payload Error.\n");
+	else if (status == 0x5)
 		ret = csum_none;
-	} else if (status == 0x6) {
-		CHIP_DBG(KERN_ERR "RX Des0 status: IPv4/6 Header Error.\n");
+	else if (status == 0x6)
 		ret = csum_none;
-	} else if (status == 0x7) {
-		CHIP_DBG(KERN_ERR
-		    "RX Des0 status: IPv4/6 Header and Payload Error.\n");
+	else if (status == 0x7)
 		ret = csum_none;
-	} else if (status == 0x1) {
-		CHIP_DBG(KERN_ERR
-		    "RX Des0 status: IPv4/6 unsupported IP PAYLOAD.\n");
+	else if (status == 0x1)
 		ret = discard_frame;
-	} else if (status == 0x3) {
-		CHIP_DBG(KERN_ERR "RX Des0 status: No IPv4, IPv6 frame.\n");
+	else if (status == 0x3)
 		ret = discard_frame;
-	}
 	return ret;
 }
 
@@ -208,36 +181,26 @@ static int enh_desc_get_rx_status(void *data, struct stmmac_extra_stats *x,
 	struct net_device_stats *stats = (struct net_device_stats *)data;
 
 	if (unlikely(p->des01.erx.error_summary)) {
-		CHIP_DBG(KERN_ERR "GMAC RX Error Summary 0x%08x\n",
-				  p->des01.erx);
 		if (unlikely(p->des01.erx.descriptor_error)) {
-			CHIP_DBG(KERN_ERR "\tdescriptor error\n");
 			x->rx_desc++;
 			stats->rx_length_errors++;
 		}
-		if (unlikely(p->des01.erx.overflow_error)) {
-			CHIP_DBG(KERN_ERR "\toverflow error\n");
+		if (unlikely(p->des01.erx.overflow_error))
 			x->rx_gmac_overflow++;
-		}
 
 		if (unlikely(p->des01.erx.ipc_csum_error))
-			CHIP_DBG(KERN_ERR "\tIPC Csum Error/Giant frame\n");
+			pr_err("\tIPC Csum Error/Giant frame\n");
 
 		if (unlikely(p->des01.erx.late_collision)) {
-			CHIP_DBG(KERN_ERR "\tlate_collision error\n");
-			stats->collisions++;
 			stats->collisions++;
 		}
-		if (unlikely(p->des01.erx.receive_watchdog)) {
-			CHIP_DBG(KERN_ERR "\treceive_watchdog error\n");
+		if (unlikely(p->des01.erx.receive_watchdog))
 			x->rx_watchdog++;
-		}
-		if (unlikely(p->des01.erx.error_gmii)) {
-			CHIP_DBG(KERN_ERR "\tReceive Error\n");
+
+		if (unlikely(p->des01.erx.error_gmii))
 			x->rx_mii++;
-		}
+
 		if (unlikely(p->des01.erx.crc_error)) {
-			CHIP_DBG(KERN_ERR "\tCRC error\n");
 			x->rx_crc++;
 			stats->rx_crc_errors++;
 		}
@@ -251,30 +214,24 @@ static int enh_desc_get_rx_status(void *data, struct stmmac_extra_stats *x,
 	ret = enh_desc_coe_rdes0(p->des01.erx.ipc_csum_error,
 		p->des01.erx.frame_type, p->des01.erx.rx_mac_addr);
 
-	if (unlikely(p->des01.erx.dribbling)) {
-		CHIP_DBG(KERN_ERR "GMAC RX: dribbling error\n");
+	if (unlikely(p->des01.erx.dribbling))
 		x->dribbling_bit++;
-	}
+
 	if (unlikely(p->des01.erx.sa_filter_fail)) {
-		CHIP_DBG(KERN_ERR "GMAC RX : Source Address filter fail\n");
 		x->sa_rx_filter_fail++;
 		ret = discard_frame;
 	}
 	if (unlikely(p->des01.erx.da_filter_fail)) {
-		CHIP_DBG(KERN_ERR "GMAC RX : Dest Address filter fail\n");
 		x->da_rx_filter_fail++;
 		ret = discard_frame;
 	}
 	if (unlikely(p->des01.erx.length_error)) {
-		CHIP_DBG(KERN_ERR "GMAC RX: length_error error\n");
 		x->rx_length++;
 		ret = discard_frame;
 	}
 #ifdef STMMAC_VLAN_TAG_USED
-	if (p->des01.erx.vlan_tag) {
-		CHIP_DBG(KERN_INFO "GMAC RX: VLAN frame tagged\n");
+	if (p->des01.erx.vlan_tag)
 		x->rx_vlan++;
-	}
 #endif
 
 	return ret;
diff --git a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c
index 11775b9..35ad4f4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c
@@ -52,10 +52,8 @@ static int ndesc_get_tx_status(void *data, struct stmmac_extra_stats *x,
 		ret = -1;
 	}
 
-	if (p->des01.etx.vlan_frame) {
-		CHIP_DBG(KERN_INFO "GMAC TX status: VLAN frame\n");
+	if (p->des01.etx.vlan_frame)
 		x->tx_vlan++;
-	}
 
 	if (unlikely(p->des01.tx.deferred))
 		x->tx_deferred++;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 5206933..62e3105 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -51,32 +51,6 @@
 #include "stmmac_ptp.h"
 #include "stmmac.h"
 
-#undef STMMAC_DEBUG
-/*#define STMMAC_DEBUG*/
-#ifdef STMMAC_DEBUG
-#define DBG(nlevel, klevel, fmt, args...) \
-		((void)(netif_msg_##nlevel(priv) && \
-		printk(KERN_##klevel fmt, ## args)))
-#else
-#define DBG(nlevel, klevel, fmt, args...) do { } while (0)
-#endif
-
-#undef STMMAC_RX_DEBUG
-/*#define STMMAC_RX_DEBUG*/
-#ifdef STMMAC_RX_DEBUG
-#define RX_DBG(fmt, args...)  printk(fmt, ## args)
-#else
-#define RX_DBG(fmt, args...)  do { } while (0)
-#endif
-
-#undef STMMAC_XMIT_DEBUG
-/*#define STMMAC_XMIT_DEBUG*/
-#ifdef STMMAC_XMIT_DEBUG
-#define TX_DBG(fmt, args...)  printk(fmt, ## args)
-#else
-#define TX_DBG(fmt, args...)  do { } while (0)
-#endif
-
 #define STMMAC_ALIGN(x)	L1_CACHE_ALIGN(x)
 #define JUMBO_LEN	9000
 
@@ -214,19 +188,17 @@ static void stmmac_clk_csr_set(struct stmmac_priv *priv)
 	}
 }
 
-#if defined(STMMAC_XMIT_DEBUG) || defined(STMMAC_RX_DEBUG)
 static void print_pkt(unsigned char *buf, int len)
 {
 	int j;
-	pr_info("len = %d byte, buf addr: 0x%p", len, buf);
+	pr_debug("len = %d byte, buf addr: 0x%p", len, buf);
 	for (j = 0; j < len; j++) {
 		if ((j % 16) == 0)
-			pr_info("\n %03x:", j);
-		pr_info(" %02x", buf[j]);
+			pr_debug("\n %03x:", j);
+		pr_debug(" %02x", buf[j]);
 	}
-	pr_info("\n");
+	pr_debug("\n");
 }
-#endif
 
 /* minimum number of free TX descriptors required to wake up TX process */
 #define STMMAC_TX_THRESH(x)	(x->dma_tx_size/4)
@@ -698,9 +670,6 @@ static void stmmac_adjust_link(struct net_device *dev)
 	if (phydev == NULL)
 		return;
 
-	DBG(probe, DEBUG, "stmmac_adjust_link: called.  address %d link %d\n",
-	    phydev->addr, phydev->link);
-
 	spin_lock_irqsave(&priv->lock, flags);
 
 	if (phydev->link) {
@@ -772,8 +741,6 @@ static void stmmac_adjust_link(struct net_device *dev)
 	stmmac_eee_adjust(priv);
 
 	spin_unlock_irqrestore(&priv->lock, flags);
-
-	DBG(probe, DEBUG, "stmmac_adjust_link: exiting\n");
 }
 
 /**
@@ -1014,8 +981,9 @@ static void init_dma_desc_rings(struct net_device *dev)
 	if (bfsize < BUF_SIZE_16KiB)
 		bfsize = stmmac_set_bfsize(dev->mtu, priv->dma_buf_sz);
 
-	DBG(probe, INFO, "stmmac: txsize %d, rxsize %d, bfsize %d\n",
-	    txsize, rxsize, bfsize);
+	if (netif_msg_probe(priv))
+		pr_debug("%s: txsize %d, rxsize %d, bfsize %d\n", __func__,
+			 txsize, rxsize, bfsize);
 
 	if (priv->extend_desc) {
 		priv->dma_erx = dma_alloc_coherent(priv->device, rxsize *
@@ -1051,12 +1019,13 @@ static void init_dma_desc_rings(struct net_device *dev)
 					    GFP_KERNEL);
 	priv->tx_skbuff = kmalloc_array(txsize, sizeof(struct sk_buff *),
 					GFP_KERNEL);
-	if (netif_msg_drv(priv))
+	if (netif_msg_probe(priv)) {
 		pr_debug("(%s) dma_rx_phy=0x%08x dma_tx_phy=0x%08x\n", __func__,
 			 (u32) priv->dma_rx_phy, (u32) priv->dma_tx_phy);
 
-	/* RX INITIALIZATION */
-	DBG(probe, INFO, "stmmac: SKB addresses:\nskb\t\tskb data\tdma data\n");
+		/* RX INITIALIZATION */
+		pr_debug("\tSKB addresses:\nskb\t\tskb data\tdma data\n");
+	}
 	for (i = 0; i < rxsize; i++) {
 		struct dma_desc *p;
 		if (priv->extend_desc)
@@ -1067,8 +1036,10 @@ static void init_dma_desc_rings(struct net_device *dev)
 		if (stmmac_init_rx_buffers(priv, p, i))
 			break;
 
-		DBG(probe, INFO, "[%p]\t[%p]\t[%x]\n", priv->rx_skbuff[i],
-		    priv->rx_skbuff[i]->data, priv->rx_skbuff_dma[i]);
+		if (netif_msg_probe(priv))
+			pr_debug("[%p]\t[%p]\t[%x]\n", priv->rx_skbuff[i],
+				 priv->rx_skbuff[i]->data,
+				 (unsigned int)priv->rx_skbuff_dma[i]);
 	}
 	priv->cur_rx = 0;
 	priv->dirty_rx = (unsigned int)(i - rxsize);
@@ -1243,8 +1214,9 @@ static void stmmac_tx_clean(struct stmmac_priv *priv)
 
 			stmmac_get_tx_hwtstamp(priv, entry, skb);
 		}
-		TX_DBG("%s: curr %d, dirty %d\n", __func__,
-		       priv->cur_tx, priv->dirty_tx);
+		if (netif_msg_tx_done(priv))
+			pr_debug("%s: curr %d, dirty %d\n", __func__,
+				 priv->cur_tx, priv->dirty_tx);
 
 		if (likely(priv->tx_skbuff_dma[entry])) {
 			dma_unmap_single(priv->device,
@@ -1269,7 +1241,8 @@ static void stmmac_tx_clean(struct stmmac_priv *priv)
 		netif_tx_lock(priv->dev);
 		if (netif_queue_stopped(priv->dev) &&
 		    stmmac_tx_avail(priv) > STMMAC_TX_THRESH(priv)) {
-			TX_DBG("%s: restart transmit\n", __func__);
+			if (netif_msg_tx_done(priv))
+				pr_debug("%s: restart transmit\n", __func__);
 			netif_wake_queue(priv->dev);
 		}
 		netif_tx_unlock(priv->dev);
@@ -1658,7 +1631,7 @@ static int stmmac_open(struct net_device *dev)
 		pr_warn("%s: failed debugFS registration\n", __func__);
 #endif
 	/* Start the ball rolling... */
-	DBG(probe, DEBUG, "%s: DMA RX/TX processes started...\n", dev->name);
+	pr_debug("%s: DMA RX/TX processes started...\n", dev->name);
 	priv->hw->dma->start_tx(priv->ioaddr);
 	priv->hw->dma->start_rx(priv->ioaddr);
 
@@ -1800,16 +1773,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	entry = priv->cur_tx % txsize;
 
-#ifdef STMMAC_XMIT_DEBUG
-	if ((skb->len > ETH_FRAME_LEN) || nfrags)
-		pr_debug("%s: [entry %d]: skb addr %p len: %d nopagedlen: %d\n"
-			 "\tn_frags: %d - ip_summed: %d - %s gso\n"
-			 "\ttx_count_frames %d\n", __func__, entry,
-			 skb, skb->len, nopaged_len, nfrags, skb->ip_summed,
-			 !skb_is_gso(skb) ? "isn't" : "is",
-			 priv->tx_count_frames);
-#endif
-
 	csum_insertion = (skb->ip_summed == CHECKSUM_PARTIAL);
 
 	if (priv->extend_desc)
@@ -1819,12 +1782,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	first = desc;
 
-#ifdef STMMAC_XMIT_DEBUG
-	if ((nfrags > 0) || (skb->len > ETH_FRAME_LEN))
-		pr_debug("\tskb len: %d, nopaged_len: %d,\n"
-			 "\t\tn_frags: %d, ip_summed: %d\n",
-			 skb->len, nopaged_len, nfrags, skb->ip_summed);
-#endif
 	priv->tx_skbuff[entry] = skb;
 
 	/* To program the descriptors according to the size of the frame */
@@ -1860,7 +1817,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 		else
 			desc = priv->dma_tx + entry;
 
-		TX_DBG("\t[entry %d] segment len: %d\n", entry, len);
 		desc->des2 = skb_frag_dma_map(priv->device, frag, 0, len,
 					      DMA_TO_DEVICE);
 		priv->tx_skbuff_dma[entry] = desc->des2;
@@ -1884,8 +1840,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (priv->tx_coal_frames > priv->tx_count_frames) {
 		priv->hw->desc->clear_tx_ic(desc);
 		priv->xstats.tx_reset_ic_bit++;
-		TX_DBG("\t[entry %d]: tx_count_frames %d\n", entry,
-		       priv->tx_count_frames);
 		mod_timer(&priv->txtimer,
 			  STMMAC_COAL_TIMER(priv->tx_coal_timer));
 	} else
@@ -1897,22 +1851,22 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	priv->cur_tx++;
 
-#ifdef STMMAC_XMIT_DEBUG
 	if (netif_msg_pktdata(priv)) {
-		pr_info("%s: curr %d dirty=%d entry=%d, first=%p, nfrags=%d",
+		pr_debug("%s: curr %d dirty=%d entry=%d, first=%p, nfrags=%d",
 			__func__, (priv->cur_tx % txsize),
 			(priv->dirty_tx % txsize), entry, first, nfrags);
+
 		if (priv->extend_desc)
 			stmmac_display_ring((void *)priv->dma_etx, txsize, 1);
 		else
 			stmmac_display_ring((void *)priv->dma_tx, txsize, 0);
 
-		pr_info(">>> frame to be transmitted: ");
+		pr_debug(">>> frame to be transmitted: ");
 		print_pkt(skb->data, skb->len);
 	}
-#endif
 	if (unlikely(stmmac_tx_avail(priv) <= (MAX_SKB_FRAGS + 1))) {
-		TX_DBG("%s: stop transmitted packets\n", __func__);
+		if (netif_msg_hw(priv))
+			pr_debug("%s: stop transmitted packets\n", __func__);
 		netif_stop_queue(dev);
 	}
 
@@ -1972,7 +1926,8 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv)
 
 			priv->hw->ring->refill_desc3(priv, p);
 
-			RX_DBG(KERN_INFO "\trefill entry #%d\n", entry);
+			if (netif_msg_rx_status(priv))
+				pr_debug("\trefill entry #%d\n", entry);
 		}
 		wmb();
 		priv->hw->desc->set_rx_owner(p);
@@ -1995,15 +1950,13 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit)
 	unsigned int count = 0;
 	int coe = priv->plat->rx_coe;
 
-#ifdef STMMAC_RX_DEBUG
-	if (netif_msg_hw(priv)) {
-		pr_debug(">>> stmmac_rx: descriptor ring:\n");
+	if (netif_msg_rx_status(priv)) {
+		pr_debug("%s: descriptor ring:\n", __func__);
 		if (priv->extend_desc)
 			stmmac_display_ring((void *)priv->dma_erx, rxsize, 1);
 		else
 			stmmac_display_ring((void *)priv->dma_rx, rxsize, 0);
 	}
-#endif
 	while (count < limit) {
 		int status;
 		struct dma_desc *p;
@@ -2057,15 +2010,14 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit)
 			 */
 			if (unlikely(status != llc_snap))
 				frame_len -= ETH_FCS_LEN;
-#ifdef STMMAC_RX_DEBUG
-			if (frame_len > ETH_FRAME_LEN)
-				pr_debug("\tRX frame size %d, COE status: %d\n",
-					 frame_len, status);
 
-			if (netif_msg_hw(priv))
+			if (netif_msg_rx_status(priv)) {
 				pr_debug("\tdesc: %p [entry %d] buff=0x%x\n",
 					 p, entry, p->des2);
-#endif
+				if (frame_len > ETH_FRAME_LEN)
+					pr_debug("\tframe size %d, COE: %d\n",
+						 frame_len, status);
+			}
 			skb = priv->rx_skbuff[entry];
 			if (unlikely(!skb)) {
 				pr_err("%s: Inconsistent Rx descriptor chain\n",
@@ -2082,12 +2034,12 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit)
 			dma_unmap_single(priv->device,
 					 priv->rx_skbuff_dma[entry],
 					 priv->dma_buf_sz, DMA_FROM_DEVICE);
-#ifdef STMMAC_RX_DEBUG
+
 			if (netif_msg_pktdata(priv)) {
-				pr_info(" frame received (%dbytes)", frame_len);
+				pr_debug("frame received (%dbytes)", frame_len);
 				print_pkt(skb->data, frame_len);
 			}
-#endif
+
 			skb->protocol = eth_type_trans(skb, priv->dev);
 
 			if (unlikely(!coe))
-- 
cgit v0.10.2


From 8a59bd3e9b296b93b905b5509c4ff540ee0e00bf Mon Sep 17 00:00:00 2001
From: Yann Droneaud <ydroneaud@opteya.com>
Date: Tue, 2 Jul 2013 18:39:36 +0200
Subject: sctp: use get_unused_fd_flags(0) instead of get_unused_fd()

Macro get_unused_fd() is used to allocate a file descriptor with
default flags. Those default flags (0) can be "unsafe":
O_CLOEXEC must be used by default to not leak file descriptor
across exec().

Instead of macro get_unused_fd(), functions anon_inode_getfd()
or get_unused_fd_flags() should be used with flags given by userspace.
If not possible, flags should be set to O_CLOEXEC to provide userspace
with a default safe behavor.

In a further patch, get_unused_fd() will be removed so that
new code start using anon_inode_getfd() or get_unused_fd_flags()
with correct flags.

This patch replaces calls to get_unused_fd() with equivalent call to
get_unused_fd_flags(0) to preserve current behavor for existing code.

The hard coded flag value (0) should be reviewed on a per-subsystem basis,
and, if possible, set to O_CLOEXEC.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index d5c6a28..c6670d2 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4312,7 +4312,7 @@ static int sctp_getsockopt_peeloff(struct sock *sk, int len, char __user *optval
 		goto out;
 
 	/* Map the socket to an unused fd that can be returned to the user.  */
-	retval = get_unused_fd();
+	retval = get_unused_fd_flags(0);
 	if (retval < 0) {
 		sock_release(newsock);
 		goto out;
-- 
cgit v0.10.2


From b6dc01a43aaca24e6e6928e24d9b37ba599f1e3c Mon Sep 17 00:00:00 2001
From: James Chapman <jchapman@katalix.com>
Date: Tue, 2 Jul 2013 20:28:58 +0100
Subject: l2tp: do data sequence number handling in a separate func

This change moves some code handling data sequence numbers into a
separate function to avoid too much indentation. This is to prepare
for some changes to data sequence number handling in subsequent
patches.

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 6984c3a..5ca2965 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -542,6 +542,38 @@ static inline int l2tp_verify_udp_checksum(struct sock *sk,
 	return __skb_checksum_complete(skb);
 }
 
+/* If packet has sequence numbers, queue it if acceptable. Returns 0 if
+ * acceptable, else non-zero.
+ */
+static int l2tp_recv_data_seq(struct l2tp_session *session, struct sk_buff *skb)
+{
+	if (session->reorder_timeout != 0) {
+		/* Packet reordering enabled. Add skb to session's
+		 * reorder queue, in order of ns.
+		 */
+		l2tp_recv_queue_skb(session, skb);
+	} else {
+		/* Packet reordering disabled. Discard out-of-sequence
+		 * packets
+		 */
+		if (L2TP_SKB_CB(skb)->ns != session->nr) {
+			atomic_long_inc(&session->stats.rx_seq_discards);
+			l2tp_dbg(session, L2TP_MSG_SEQ,
+				 "%s: oos pkt %u len %d discarded, waiting for %u, reorder_q_len=%d\n",
+				 session->name, L2TP_SKB_CB(skb)->ns,
+				 L2TP_SKB_CB(skb)->length, session->nr,
+				 skb_queue_len(&session->reorder_q));
+			goto discard;
+		}
+		skb_queue_tail(&session->reorder_q, skb);
+	}
+
+	return 0;
+
+discard:
+	return 1;
+}
+
 /* Do receive processing of L2TP data frames. We handle both L2TPv2
  * and L2TPv3 data frames here.
  *
@@ -757,26 +789,8 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
 	 * enabled. Saved L2TP protocol info is stored in skb->sb[].
 	 */
 	if (L2TP_SKB_CB(skb)->has_seq) {
-		if (session->reorder_timeout != 0) {
-			/* Packet reordering enabled. Add skb to session's
-			 * reorder queue, in order of ns.
-			 */
-			l2tp_recv_queue_skb(session, skb);
-		} else {
-			/* Packet reordering disabled. Discard out-of-sequence
-			 * packets
-			 */
-			if (L2TP_SKB_CB(skb)->ns != session->nr) {
-				atomic_long_inc(&session->stats.rx_seq_discards);
-				l2tp_dbg(session, L2TP_MSG_SEQ,
-					 "%s: oos pkt %u len %d discarded, waiting for %u, reorder_q_len=%d\n",
-					 session->name, L2TP_SKB_CB(skb)->ns,
-					 L2TP_SKB_CB(skb)->length, session->nr,
-					 skb_queue_len(&session->reorder_q));
-				goto discard;
-			}
-			skb_queue_tail(&session->reorder_q, skb);
-		}
+		if (l2tp_recv_data_seq(session, skb))
+			goto discard;
 	} else {
 		/* No sequence numbers. Add the skb to the tail of the
 		 * reorder queue. This ensures that it will be
-- 
cgit v0.10.2


From 8a1631d588a39e826f4248e60310498d5266c6fa Mon Sep 17 00:00:00 2001
From: James Chapman <jchapman@katalix.com>
Date: Tue, 2 Jul 2013 20:28:59 +0100
Subject: l2tp: make datapath sequence number support RFC-compliant

The L2TP datapath is not currently RFC-compliant when sequence numbers
are used in L2TP data packets. According to the L2TP RFC, any received
sequence number NR greater than or equal to the next expected NR is
acceptable, where the "greater than or equal to" test is determined by
the NR wrap point. This differs for L2TPv2 and L2TPv3, so add state in
the session context to hold the max NR value and the NR window size in
order to do the acceptable sequence number value check. These might be
configurable later, but for now we derive it from the tunnel L2TP
version, which determines the sequence number field size.

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 5ca2965..735cc06 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -414,10 +414,7 @@ static void l2tp_recv_dequeue_skb(struct l2tp_session *session, struct sk_buff *
 	if (L2TP_SKB_CB(skb)->has_seq) {
 		/* Bump our Nr */
 		session->nr++;
-		if (tunnel->version == L2TP_HDR_VER_2)
-			session->nr &= 0xffff;
-		else
-			session->nr &= 0xffffff;
+		session->nr &= session->nr_max;
 
 		l2tp_dbg(session, L2TP_MSG_SEQ, "%s: updated nr to %hu\n",
 			 session->name, session->nr);
@@ -542,11 +539,34 @@ static inline int l2tp_verify_udp_checksum(struct sock *sk,
 	return __skb_checksum_complete(skb);
 }
 
+static int l2tp_seq_check_rx_window(struct l2tp_session *session, u32 nr)
+{
+	u32 nws;
+
+	if (nr >= session->nr)
+		nws = nr - session->nr;
+	else
+		nws = (session->nr_max + 1) - (session->nr - nr);
+
+	return nws < session->nr_window_size;
+}
+
 /* If packet has sequence numbers, queue it if acceptable. Returns 0 if
  * acceptable, else non-zero.
  */
 static int l2tp_recv_data_seq(struct l2tp_session *session, struct sk_buff *skb)
 {
+	if (!l2tp_seq_check_rx_window(session, L2TP_SKB_CB(skb)->ns)) {
+		/* Packet sequence number is outside allowed window.
+		 * Discard it.
+		 */
+		l2tp_dbg(session, L2TP_MSG_SEQ,
+			 "%s: pkt %u len %d discarded, outside window, nr=%u\n",
+			 session->name, L2TP_SKB_CB(skb)->ns,
+			 L2TP_SKB_CB(skb)->length, session->nr);
+		goto discard;
+	}
+
 	if (session->reorder_timeout != 0) {
 		/* Packet reordering enabled. Add skb to session's
 		 * reorder queue, in order of ns.
@@ -556,7 +576,8 @@ static int l2tp_recv_data_seq(struct l2tp_session *session, struct sk_buff *skb)
 		/* Packet reordering disabled. Discard out-of-sequence
 		 * packets
 		 */
-		if (L2TP_SKB_CB(skb)->ns != session->nr) {
+		if ((L2TP_SKB_CB(skb)->ns != session->nr) &&
+		    (!session->reorder_skip)) {
 			atomic_long_inc(&session->stats.rx_seq_discards);
 			l2tp_dbg(session, L2TP_MSG_SEQ,
 				 "%s: oos pkt %u len %d discarded, waiting for %u, reorder_q_len=%d\n",
@@ -1826,6 +1847,11 @@ struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunn
 		session->session_id = session_id;
 		session->peer_session_id = peer_session_id;
 		session->nr = 0;
+		if (tunnel->version == L2TP_HDR_VER_2)
+			session->nr_max = 0xffff;
+		else
+			session->nr_max = 0xffffff;
+		session->nr_window_size = session->nr_max / 2;
 
 		sprintf(&session->name[0], "sess %u/%u",
 			tunnel->tunnel_id, session->session_id);
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 485a490..4b9a3b7 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -102,6 +102,8 @@ struct l2tp_session {
 	u32			nr;		/* session NR state (receive) */
 	u32			ns;		/* session NR state (send) */
 	struct sk_buff_head	reorder_q;	/* receive reorder queue */
+	u32			nr_max;		/* max NR. Depends on tunnel */
+	u32			nr_window_size;	/* NR window size */
 	struct hlist_node	hlist;		/* Hash list node */
 	atomic_t		ref_count;
 
-- 
cgit v0.10.2


From a0dbd822273ce7660bf35525d61d7a8ac5e679a3 Mon Sep 17 00:00:00 2001
From: James Chapman <jchapman@katalix.com>
Date: Tue, 2 Jul 2013 20:29:00 +0100
Subject: l2tp: make datapath resilient to packet loss when sequence numbers
 enabled

If L2TP data sequence numbers are enabled and reordering is not
enabled, data reception stops if a packet is lost since the kernel
waits for a sequence number that is never resent. (When reordering is
enabled, data reception restarts when the reorder timeout expires.) If
no reorder timeout is set, we should count the number of in-sequence
packets after the out-of-sequence (OOS) condition is detected, and reset
sequence number state after a number of such packets are received.

For now, the number of in-sequence packets while in OOS state which
cause the sequence number state to be reset is hard-coded to 5. This
could be configurable later.

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 735cc06..feae495 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -572,12 +572,33 @@ static int l2tp_recv_data_seq(struct l2tp_session *session, struct sk_buff *skb)
 		 * reorder queue, in order of ns.
 		 */
 		l2tp_recv_queue_skb(session, skb);
+		goto out;
+	}
+
+	/* Packet reordering disabled. Discard out-of-sequence packets, while
+	 * tracking the number if in-sequence packets after the first OOS packet
+	 * is seen. After nr_oos_count_max in-sequence packets, reset the
+	 * sequence number to re-enable packet reception.
+	 */
+	if (L2TP_SKB_CB(skb)->ns == session->nr) {
+		skb_queue_tail(&session->reorder_q, skb);
 	} else {
-		/* Packet reordering disabled. Discard out-of-sequence
-		 * packets
-		 */
-		if ((L2TP_SKB_CB(skb)->ns != session->nr) &&
-		    (!session->reorder_skip)) {
+		u32 nr_oos = L2TP_SKB_CB(skb)->ns;
+		u32 nr_next = (session->nr_oos + 1) & session->nr_max;
+
+		if (nr_oos == nr_next)
+			session->nr_oos_count++;
+		else
+			session->nr_oos_count = 0;
+
+		session->nr_oos = nr_oos;
+		if (session->nr_oos_count > session->nr_oos_count_max) {
+			session->reorder_skip = 1;
+			l2tp_dbg(session, L2TP_MSG_SEQ,
+				 "%s: %d oos packets received. Resetting sequence numbers\n",
+				 session->name, session->nr_oos_count);
+		}
+		if (!session->reorder_skip) {
 			atomic_long_inc(&session->stats.rx_seq_discards);
 			l2tp_dbg(session, L2TP_MSG_SEQ,
 				 "%s: oos pkt %u len %d discarded, waiting for %u, reorder_q_len=%d\n",
@@ -589,6 +610,7 @@ static int l2tp_recv_data_seq(struct l2tp_session *session, struct sk_buff *skb)
 		skb_queue_tail(&session->reorder_q, skb);
 	}
 
+out:
 	return 0;
 
 discard:
@@ -1852,6 +1874,10 @@ struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunn
 		else
 			session->nr_max = 0xffffff;
 		session->nr_window_size = session->nr_max / 2;
+		session->nr_oos_count_max = 4;
+
+		/* Use NR of first received packet */
+		session->reorder_skip = 1;
 
 		sprintf(&session->name[0], "sess %u/%u",
 			tunnel->tunnel_id, session->session_id);
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 4b9a3b7..66a559b 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -104,6 +104,9 @@ struct l2tp_session {
 	struct sk_buff_head	reorder_q;	/* receive reorder queue */
 	u32			nr_max;		/* max NR. Depends on tunnel */
 	u32			nr_window_size;	/* NR window size */
+	u32			nr_oos;		/* NR of last OOS packet */
+	int			nr_oos_count;	/* For OOS recovery */
+	int			nr_oos_count_max;
 	struct hlist_node	hlist;		/* Hash list node */
 	atomic_t		ref_count;
 
-- 
cgit v0.10.2


From 23a3647bc4f93bac3776c66dc2c7f7f68b3cd662 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Tue, 2 Jul 2013 10:57:33 -0700
Subject: ip_tunnels: Use skb-len to PMTU check.

In path mtu check, ip header total length works for gre device
but not for gre-tap device.  Use skb len which is consistent
for all tunneling types.  This is old bug in gre.
This also fixes mtu calculation bug introduced by
commit c54419321455631079c7d (GRE: Refactor GRE tunneling code).

Reported-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 394cebc..945734b 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -472,6 +472,54 @@ drop:
 }
 EXPORT_SYMBOL_GPL(ip_tunnel_rcv);
 
+static int tnl_update_pmtu(struct net_device *dev, struct sk_buff *skb,
+			    struct rtable *rt, __be16 df)
+{
+	struct ip_tunnel *tunnel = netdev_priv(dev);
+	int pkt_size = skb->len - tunnel->hlen;
+	int mtu;
+
+	if (df)
+		mtu = dst_mtu(&rt->dst) - dev->hard_header_len
+					- sizeof(struct iphdr) - tunnel->hlen;
+	else
+		mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
+
+	if (skb_dst(skb))
+		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu);
+
+	if (skb->protocol == htons(ETH_P_IP)) {
+		if (!skb_is_gso(skb) &&
+		    (df & htons(IP_DF)) && mtu < pkt_size) {
+			memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
+			icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
+			return -E2BIG;
+		}
+	}
+#if IS_ENABLED(CONFIG_IPV6)
+	else if (skb->protocol == htons(ETH_P_IPV6)) {
+		struct rt6_info *rt6 = (struct rt6_info *)skb_dst(skb);
+
+		if (rt6 && mtu < dst_mtu(skb_dst(skb)) &&
+			   mtu >= IPV6_MIN_MTU) {
+			if ((tunnel->parms.iph.daddr &&
+			    !ipv4_is_multicast(tunnel->parms.iph.daddr)) ||
+			    rt6->rt6i_dst.plen == 128) {
+				rt6->rt6i_flags |= RTF_MODIFIED;
+				dst_metric_set(skb_dst(skb), RTAX_MTU, mtu);
+			}
+		}
+
+		if (!skb_is_gso(skb) && mtu >= IPV6_MIN_MTU &&
+					mtu < pkt_size) {
+			icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
+			return -E2BIG;
+		}
+	}
+#endif
+	return 0;
+}
+
 void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 		    const struct iphdr *tnl_params, const u8 protocol)
 {
@@ -483,7 +531,6 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 	struct rtable *rt;		/* Route to the other host */
 	unsigned int max_headroom;	/* The extra header space needed */
 	__be32 dst;
-	int mtu;
 	int err;
 
 	inner_iph = (const struct iphdr *)skb_inner_network_header(skb);
@@ -560,51 +607,11 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 		dev->stats.collisions++;
 		goto tx_error;
 	}
-	df = tnl_params->frag_off;
 
-	if (df)
-		mtu = dst_mtu(&rt->dst) - dev->hard_header_len
-					- sizeof(struct iphdr);
-	else
-		mtu = skb_dst(skb) ? dst_mtu(skb_dst(skb)) : dev->mtu;
-
-	if (skb_dst(skb))
-		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu);
-
-	if (skb->protocol == htons(ETH_P_IP)) {
-		df |= (inner_iph->frag_off&htons(IP_DF));
-
-		if (!skb_is_gso(skb) &&
-		    (inner_iph->frag_off&htons(IP_DF)) &&
-		     mtu < ntohs(inner_iph->tot_len)) {
-			memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
-			icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
-			ip_rt_put(rt);
-			goto tx_error;
-		}
-	}
-#if IS_ENABLED(CONFIG_IPV6)
-	else if (skb->protocol == htons(ETH_P_IPV6)) {
-		struct rt6_info *rt6 = (struct rt6_info *)skb_dst(skb);
-
-		if (rt6 && mtu < dst_mtu(skb_dst(skb)) &&
-		    mtu >= IPV6_MIN_MTU) {
-			if ((tunnel->parms.iph.daddr &&
-			    !ipv4_is_multicast(tunnel->parms.iph.daddr)) ||
-			    rt6->rt6i_dst.plen == 128) {
-				rt6->rt6i_flags |= RTF_MODIFIED;
-				dst_metric_set(skb_dst(skb), RTAX_MTU, mtu);
-			}
-		}
-
-		if (!skb_is_gso(skb) && mtu >= IPV6_MIN_MTU &&
-		    mtu < skb->len) {
-			icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
-			ip_rt_put(rt);
-			goto tx_error;
-		}
+	if (tnl_update_pmtu(dev, skb, rt, tnl_params->frag_off)) {
+		ip_rt_put(rt);
+		goto tx_error;
 	}
-#endif
 
 	if (tunnel->net != dev_net(dev))
 		skb_scrub_packet(skb);
@@ -631,6 +638,10 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
 			ttl = ip4_dst_hoplimit(&rt->dst);
 	}
 
+	df = tnl_params->frag_off;
+	if (skb->protocol == htons(ETH_P_IP))
+		df |= (inner_iph->frag_off&htons(IP_DF));
+
 	max_headroom = LL_RESERVED_SPACE(rt->dst.dev) + sizeof(struct iphdr)
 			+ rt->dst.header_len;
 	if (max_headroom > dev->needed_headroom) {
-- 
cgit v0.10.2


From 419076f59fc5916bd200b45225c83437b37ab189 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Wed, 3 Jul 2013 06:41:24 +0300
Subject: net: lls fix build with allnoconfig

correct placeholder declarations to prevent build breakage when
!CONFIG_NET_LL_RX_POLL

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index b76f004..0d620ba 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -163,12 +163,12 @@ static inline unsigned long ll_get_flag(void)
 	return 0;
 }
 
-static inline u64 sk_ll_end_time(struct sock *sk)
+static inline u64 ll_start_time(unsigned int flag)
 {
 	return 0;
 }
 
-static inline u64 ll_end_time(void)
+static inline u64 ll_run_time(void)
 {
 	return 0;
 }
@@ -191,7 +191,7 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 {
 }
 
-static inline bool can_poll_ll(u64 end_time)
+static inline bool can_poll_ll(u64 start_time, u64 run_time)
 {
 	return false;
 }
-- 
cgit v0.10.2


From c50cd357887acf9fd7af3a5d492911bd825555a2 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 1 Jul 2013 19:24:00 +0200
Subject: net: gre: move GSO functions to gre_offload

Similarly to TCP/UDP offloading, move all related GRE functions to
gre_offload.c to make things more explicit and similar to the rest
of the code.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/gre.h b/include/net/gre.h
index a5a4ddf..57e4afd 100644
--- a/include/net/gre.h
+++ b/include/net/gre.h
@@ -32,6 +32,10 @@ struct gre_cisco_protocol {
 
 int gre_cisco_register(struct gre_cisco_protocol *proto);
 int gre_cisco_unregister(struct gre_cisco_protocol *proto);
+
+int gre_offload_init(void);
+void gre_offload_exit(void);
+
 void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
 		      int hdr_len);
 struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum);
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index 86ded0b..4b81e91 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_PROC_FS) += proc.o
 obj-$(CONFIG_IP_MULTIPLE_TABLES) += fib_rules.o
 obj-$(CONFIG_IP_MROUTE) += ipmr.o
 obj-$(CONFIG_NET_IPIP) += ipip.o
+gre-y := gre_demux.o gre_offload.o
 obj-$(CONFIG_NET_IPGRE_DEMUX) += gre.o
 obj-$(CONFIG_NET_IPGRE) += ip_gre.o
 obj-$(CONFIG_NET_IPVTI) += ip_vti.o
diff --git a/net/ipv4/gre.c b/net/ipv4/gre.c
deleted file mode 100644
index ba4803e..0000000
--- a/net/ipv4/gre.c
+++ /dev/null
@@ -1,514 +0,0 @@
-/*
- *	GRE over IPv4 demultiplexer driver
- *
- *	Authors: Dmitry Kozlov (xeb@mail.ru)
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/if.h>
-#include <linux/icmp.h>
-#include <linux/kernel.h>
-#include <linux/kmod.h>
-#include <linux/skbuff.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/netdevice.h>
-#include <linux/if_tunnel.h>
-#include <linux/spinlock.h>
-#include <net/protocol.h>
-#include <net/gre.h>
-
-#include <net/icmp.h>
-#include <net/route.h>
-#include <net/xfrm.h>
-
-static const struct gre_protocol __rcu *gre_proto[GREPROTO_MAX] __read_mostly;
-static struct gre_cisco_protocol __rcu *gre_cisco_proto_list[GRE_IP_PROTO_MAX];
-
-int gre_add_protocol(const struct gre_protocol *proto, u8 version)
-{
-	if (version >= GREPROTO_MAX)
-		return -EINVAL;
-
-	return (cmpxchg((const struct gre_protocol **)&gre_proto[version], NULL, proto) == NULL) ?
-		0 : -EBUSY;
-}
-EXPORT_SYMBOL_GPL(gre_add_protocol);
-
-int gre_del_protocol(const struct gre_protocol *proto, u8 version)
-{
-	int ret;
-
-	if (version >= GREPROTO_MAX)
-		return -EINVAL;
-
-	ret = (cmpxchg((const struct gre_protocol **)&gre_proto[version], proto, NULL) == proto) ?
-		0 : -EBUSY;
-
-	if (ret)
-		return ret;
-
-	synchronize_rcu();
-	return 0;
-}
-EXPORT_SYMBOL_GPL(gre_del_protocol);
-
-void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
-		      int hdr_len)
-{
-	struct gre_base_hdr *greh;
-
-	skb_push(skb, hdr_len);
-
-	greh = (struct gre_base_hdr *)skb->data;
-	greh->flags = tnl_flags_to_gre_flags(tpi->flags);
-	greh->protocol = tpi->proto;
-
-	if (tpi->flags&(TUNNEL_KEY|TUNNEL_CSUM|TUNNEL_SEQ)) {
-		__be32 *ptr = (__be32 *)(((u8 *)greh) + hdr_len - 4);
-
-		if (tpi->flags&TUNNEL_SEQ) {
-			*ptr = tpi->seq;
-			ptr--;
-		}
-		if (tpi->flags&TUNNEL_KEY) {
-			*ptr = tpi->key;
-			ptr--;
-		}
-		if (tpi->flags&TUNNEL_CSUM &&
-		    !(skb_shinfo(skb)->gso_type & SKB_GSO_GRE)) {
-			*ptr = 0;
-			*(__sum16 *)ptr = csum_fold(skb_checksum(skb, 0,
-								 skb->len, 0));
-		}
-	}
-}
-EXPORT_SYMBOL_GPL(gre_build_header);
-
-struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
-{
-	int err;
-
-	if (likely(!skb->encapsulation)) {
-		skb_reset_inner_headers(skb);
-		skb->encapsulation = 1;
-	}
-
-	if (skb_is_gso(skb)) {
-		err = skb_unclone(skb, GFP_ATOMIC);
-		if (unlikely(err))
-			goto error;
-		skb_shinfo(skb)->gso_type |= SKB_GSO_GRE;
-		return skb;
-	} else if (skb->ip_summed == CHECKSUM_PARTIAL && gre_csum) {
-		err = skb_checksum_help(skb);
-		if (unlikely(err))
-			goto error;
-	} else if (skb->ip_summed != CHECKSUM_PARTIAL)
-		skb->ip_summed = CHECKSUM_NONE;
-
-	return skb;
-error:
-	kfree_skb(skb);
-	return ERR_PTR(err);
-}
-EXPORT_SYMBOL_GPL(gre_handle_offloads);
-
-static __sum16 check_checksum(struct sk_buff *skb)
-{
-	__sum16 csum = 0;
-
-	switch (skb->ip_summed) {
-	case CHECKSUM_COMPLETE:
-		csum = csum_fold(skb->csum);
-
-		if (!csum)
-			break;
-		/* Fall through. */
-
-	case CHECKSUM_NONE:
-		skb->csum = 0;
-		csum = __skb_checksum_complete(skb);
-		skb->ip_summed = CHECKSUM_COMPLETE;
-		break;
-	}
-
-	return csum;
-}
-
-static int parse_gre_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
-			    bool *csum_err)
-{
-	unsigned int ip_hlen = ip_hdrlen(skb);
-	const struct gre_base_hdr *greh;
-	__be32 *options;
-	int hdr_len;
-
-	if (unlikely(!pskb_may_pull(skb, sizeof(struct gre_base_hdr))))
-		return -EINVAL;
-
-	greh = (struct gre_base_hdr *)(skb_network_header(skb) + ip_hlen);
-	if (unlikely(greh->flags & (GRE_VERSION | GRE_ROUTING)))
-		return -EINVAL;
-
-	tpi->flags = gre_flags_to_tnl_flags(greh->flags);
-	hdr_len = ip_gre_calc_hlen(tpi->flags);
-
-	if (!pskb_may_pull(skb, hdr_len))
-		return -EINVAL;
-
-	greh = (struct gre_base_hdr *)(skb_network_header(skb) + ip_hlen);
-	tpi->proto = greh->protocol;
-
-	options = (__be32 *)(greh + 1);
-	if (greh->flags & GRE_CSUM) {
-		if (check_checksum(skb)) {
-			*csum_err = true;
-			return -EINVAL;
-		}
-		options++;
-	}
-
-	if (greh->flags & GRE_KEY) {
-		tpi->key = *options;
-		options++;
-	} else
-		tpi->key = 0;
-
-	if (unlikely(greh->flags & GRE_SEQ)) {
-		tpi->seq = *options;
-		options++;
-	} else
-		tpi->seq = 0;
-
-	/* WCCP version 1 and 2 protocol decoding.
-	 * - Change protocol to IP
-	 * - When dealing with WCCPv2, Skip extra 4 bytes in GRE header
-	 */
-	if (greh->flags == 0 && tpi->proto == htons(ETH_P_WCCP)) {
-		tpi->proto = htons(ETH_P_IP);
-		if ((*(u8 *)options & 0xF0) != 0x40) {
-			hdr_len += 4;
-			if (!pskb_may_pull(skb, hdr_len))
-				return -EINVAL;
-		}
-	}
-
-	return iptunnel_pull_header(skb, hdr_len, tpi->proto);
-}
-
-static int gre_cisco_rcv(struct sk_buff *skb)
-{
-	struct tnl_ptk_info tpi;
-	int i;
-	bool csum_err = false;
-
-	if (parse_gre_header(skb, &tpi, &csum_err) < 0)
-		goto drop;
-
-	rcu_read_lock();
-	for (i = 0; i < GRE_IP_PROTO_MAX; i++) {
-		struct gre_cisco_protocol *proto;
-		int ret;
-
-		proto = rcu_dereference(gre_cisco_proto_list[i]);
-		if (!proto)
-			continue;
-		ret = proto->handler(skb, &tpi);
-		if (ret == PACKET_RCVD) {
-			rcu_read_unlock();
-			return 0;
-		}
-	}
-	rcu_read_unlock();
-
-	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
-drop:
-	kfree_skb(skb);
-	return 0;
-}
-
-static void gre_cisco_err(struct sk_buff *skb, u32 info)
-{
-	/* All the routers (except for Linux) return only
-	 * 8 bytes of packet payload. It means, that precise relaying of
-	 * ICMP in the real Internet is absolutely infeasible.
-	 *
-	 * Moreover, Cisco "wise men" put GRE key to the third word
-	 * in GRE header. It makes impossible maintaining even soft
-	 * state for keyed
-	 * GRE tunnels with enabled checksum. Tell them "thank you".
-	 *
-	 * Well, I wonder, rfc1812 was written by Cisco employee,
-	 * what the hell these idiots break standards established
-	 * by themselves???
-	 */
-
-	const int type = icmp_hdr(skb)->type;
-	const int code = icmp_hdr(skb)->code;
-	struct tnl_ptk_info tpi;
-	bool csum_err = false;
-	int i;
-
-	if (parse_gre_header(skb, &tpi, &csum_err)) {
-		if (!csum_err)		/* ignore csum errors. */
-			return;
-	}
-
-	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
-		ipv4_update_pmtu(skb, dev_net(skb->dev), info,
-				skb->dev->ifindex, 0, IPPROTO_GRE, 0);
-		return;
-	}
-	if (type == ICMP_REDIRECT) {
-		ipv4_redirect(skb, dev_net(skb->dev), skb->dev->ifindex, 0,
-				IPPROTO_GRE, 0);
-		return;
-	}
-
-	rcu_read_lock();
-	for (i = 0; i < GRE_IP_PROTO_MAX; i++) {
-		struct gre_cisco_protocol *proto;
-
-		proto = rcu_dereference(gre_cisco_proto_list[i]);
-		if (!proto)
-			continue;
-
-		if (proto->err_handler(skb, info, &tpi) == PACKET_RCVD)
-			goto out;
-
-	}
-out:
-	rcu_read_unlock();
-}
-
-static int gre_rcv(struct sk_buff *skb)
-{
-	const struct gre_protocol *proto;
-	u8 ver;
-	int ret;
-
-	if (!pskb_may_pull(skb, 12))
-		goto drop;
-
-	ver = skb->data[1]&0x7f;
-	if (ver >= GREPROTO_MAX)
-		goto drop;
-
-	rcu_read_lock();
-	proto = rcu_dereference(gre_proto[ver]);
-	if (!proto || !proto->handler)
-		goto drop_unlock;
-	ret = proto->handler(skb);
-	rcu_read_unlock();
-	return ret;
-
-drop_unlock:
-	rcu_read_unlock();
-drop:
-	kfree_skb(skb);
-	return NET_RX_DROP;
-}
-
-static void gre_err(struct sk_buff *skb, u32 info)
-{
-	const struct gre_protocol *proto;
-	const struct iphdr *iph = (const struct iphdr *)skb->data;
-	u8 ver = skb->data[(iph->ihl<<2) + 1]&0x7f;
-
-	if (ver >= GREPROTO_MAX)
-		return;
-
-	rcu_read_lock();
-	proto = rcu_dereference(gre_proto[ver]);
-	if (proto && proto->err_handler)
-		proto->err_handler(skb, info);
-	rcu_read_unlock();
-}
-
-static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
-				       netdev_features_t features)
-{
-	struct sk_buff *segs = ERR_PTR(-EINVAL);
-	netdev_features_t enc_features;
-	int ghl = GRE_HEADER_SECTION;
-	struct gre_base_hdr *greh;
-	int mac_len = skb->mac_len;
-	__be16 protocol = skb->protocol;
-	int tnl_hlen;
-	bool csum;
-
-	if (unlikely(skb_shinfo(skb)->gso_type &
-				~(SKB_GSO_TCPV4 |
-				  SKB_GSO_TCPV6 |
-				  SKB_GSO_UDP |
-				  SKB_GSO_DODGY |
-				  SKB_GSO_TCP_ECN |
-				  SKB_GSO_GRE)))
-		goto out;
-
-	if (unlikely(!pskb_may_pull(skb, sizeof(*greh))))
-		goto out;
-
-	greh = (struct gre_base_hdr *)skb_transport_header(skb);
-
-	if (greh->flags & GRE_KEY)
-		ghl += GRE_HEADER_SECTION;
-	if (greh->flags & GRE_SEQ)
-		ghl += GRE_HEADER_SECTION;
-	if (greh->flags & GRE_CSUM) {
-		ghl += GRE_HEADER_SECTION;
-		csum = true;
-	} else
-		csum = false;
-
-	/* setup inner skb. */
-	skb->protocol = greh->protocol;
-	skb->encapsulation = 0;
-
-	if (unlikely(!pskb_may_pull(skb, ghl)))
-		goto out;
-	__skb_pull(skb, ghl);
-	skb_reset_mac_header(skb);
-	skb_set_network_header(skb, skb_inner_network_offset(skb));
-	skb->mac_len = skb_inner_network_offset(skb);
-
-	/* segment inner packet. */
-	enc_features = skb->dev->hw_enc_features & netif_skb_features(skb);
-	segs = skb_mac_gso_segment(skb, enc_features);
-	if (!segs || IS_ERR(segs))
-		goto out;
-
-	skb = segs;
-	tnl_hlen = skb_tnl_header_len(skb);
-	do {
-		__skb_push(skb, ghl);
-		if (csum) {
-			__be32 *pcsum;
-
-			if (skb_has_shared_frag(skb)) {
-				int err;
-
-				err = __skb_linearize(skb);
-				if (err) {
-					kfree_skb(segs);
-					segs = ERR_PTR(err);
-					goto out;
-				}
-			}
-
-			greh = (struct gre_base_hdr *)(skb->data);
-			pcsum = (__be32 *)(greh + 1);
-			*pcsum = 0;
-			*(__sum16 *)pcsum = csum_fold(skb_checksum(skb, 0, skb->len, 0));
-		}
-		__skb_push(skb, tnl_hlen - ghl);
-
-		skb_reset_mac_header(skb);
-		skb_set_network_header(skb, mac_len);
-		skb->mac_len = mac_len;
-		skb->protocol = protocol;
-	} while ((skb = skb->next));
-out:
-	return segs;
-}
-
-static int gre_gso_send_check(struct sk_buff *skb)
-{
-	if (!skb->encapsulation)
-		return -EINVAL;
-	return 0;
-}
-
-static const struct net_protocol net_gre_protocol = {
-	.handler     = gre_rcv,
-	.err_handler = gre_err,
-	.netns_ok    = 1,
-};
-
-static const struct net_offload gre_offload = {
-	.callbacks = {
-		.gso_send_check =	gre_gso_send_check,
-		.gso_segment    =	gre_gso_segment,
-	},
-};
-
-static const struct gre_protocol ipgre_protocol = {
-	.handler     = gre_cisco_rcv,
-	.err_handler = gre_cisco_err,
-};
-
-int gre_cisco_register(struct gre_cisco_protocol *newp)
-{
-	struct gre_cisco_protocol **proto = (struct gre_cisco_protocol **)
-					    &gre_cisco_proto_list[newp->priority];
-
-	return (cmpxchg(proto, NULL, newp) == NULL) ? 0 : -EBUSY;
-}
-EXPORT_SYMBOL_GPL(gre_cisco_register);
-
-int gre_cisco_unregister(struct gre_cisco_protocol *del_proto)
-{
-	struct gre_cisco_protocol **proto = (struct gre_cisco_protocol **)
-					    &gre_cisco_proto_list[del_proto->priority];
-	int ret;
-
-	ret = (cmpxchg(proto, del_proto, NULL) == del_proto) ? 0 : -EINVAL;
-
-	if (ret)
-		return ret;
-
-	synchronize_net();
-	return 0;
-}
-EXPORT_SYMBOL_GPL(gre_cisco_unregister);
-
-static int __init gre_init(void)
-{
-	pr_info("GRE over IPv4 demultiplexor driver\n");
-
-	if (inet_add_protocol(&net_gre_protocol, IPPROTO_GRE) < 0) {
-		pr_err("can't add protocol\n");
-		goto err;
-	}
-
-	if (gre_add_protocol(&ipgre_protocol, GREPROTO_CISCO) < 0) {
-		pr_info("%s: can't add ipgre handler\n", __func__);
-		goto err_gre;
-	}
-
-	if (inet_add_offload(&gre_offload, IPPROTO_GRE)) {
-		pr_err("can't add protocol offload\n");
-		goto err_gso;
-	}
-
-	return 0;
-err_gso:
-	gre_del_protocol(&ipgre_protocol, GREPROTO_CISCO);
-err_gre:
-	inet_del_protocol(&net_gre_protocol, IPPROTO_GRE);
-err:
-	return -EAGAIN;
-}
-
-static void __exit gre_exit(void)
-{
-	inet_del_offload(&gre_offload, IPPROTO_GRE);
-	gre_del_protocol(&ipgre_protocol, GREPROTO_CISCO);
-	inet_del_protocol(&net_gre_protocol, IPPROTO_GRE);
-}
-
-module_init(gre_init);
-module_exit(gre_exit);
-
-MODULE_DESCRIPTION("GRE over IPv4 demultiplexer driver");
-MODULE_AUTHOR("D. Kozlov (xeb@mail.ru)");
-MODULE_LICENSE("GPL");
diff --git a/net/ipv4/gre_demux.c b/net/ipv4/gre_demux.c
new file mode 100644
index 0000000..736c9fc3
--- /dev/null
+++ b/net/ipv4/gre_demux.c
@@ -0,0 +1,414 @@
+/*
+ *	GRE over IPv4 demultiplexer driver
+ *
+ *	Authors: Dmitry Kozlov (xeb@mail.ru)
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/if.h>
+#include <linux/icmp.h>
+#include <linux/kernel.h>
+#include <linux/kmod.h>
+#include <linux/skbuff.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/netdevice.h>
+#include <linux/if_tunnel.h>
+#include <linux/spinlock.h>
+#include <net/protocol.h>
+#include <net/gre.h>
+
+#include <net/icmp.h>
+#include <net/route.h>
+#include <net/xfrm.h>
+
+static const struct gre_protocol __rcu *gre_proto[GREPROTO_MAX] __read_mostly;
+static struct gre_cisco_protocol __rcu *gre_cisco_proto_list[GRE_IP_PROTO_MAX];
+
+int gre_add_protocol(const struct gre_protocol *proto, u8 version)
+{
+	if (version >= GREPROTO_MAX)
+		return -EINVAL;
+
+	return (cmpxchg((const struct gre_protocol **)&gre_proto[version], NULL, proto) == NULL) ?
+		0 : -EBUSY;
+}
+EXPORT_SYMBOL_GPL(gre_add_protocol);
+
+int gre_del_protocol(const struct gre_protocol *proto, u8 version)
+{
+	int ret;
+
+	if (version >= GREPROTO_MAX)
+		return -EINVAL;
+
+	ret = (cmpxchg((const struct gre_protocol **)&gre_proto[version], proto, NULL) == proto) ?
+		0 : -EBUSY;
+
+	if (ret)
+		return ret;
+
+	synchronize_rcu();
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gre_del_protocol);
+
+void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
+		      int hdr_len)
+{
+	struct gre_base_hdr *greh;
+
+	skb_push(skb, hdr_len);
+
+	greh = (struct gre_base_hdr *)skb->data;
+	greh->flags = tnl_flags_to_gre_flags(tpi->flags);
+	greh->protocol = tpi->proto;
+
+	if (tpi->flags&(TUNNEL_KEY|TUNNEL_CSUM|TUNNEL_SEQ)) {
+		__be32 *ptr = (__be32 *)(((u8 *)greh) + hdr_len - 4);
+
+		if (tpi->flags&TUNNEL_SEQ) {
+			*ptr = tpi->seq;
+			ptr--;
+		}
+		if (tpi->flags&TUNNEL_KEY) {
+			*ptr = tpi->key;
+			ptr--;
+		}
+		if (tpi->flags&TUNNEL_CSUM &&
+		    !(skb_shinfo(skb)->gso_type & SKB_GSO_GRE)) {
+			*ptr = 0;
+			*(__sum16 *)ptr = csum_fold(skb_checksum(skb, 0,
+								 skb->len, 0));
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(gre_build_header);
+
+struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
+{
+	int err;
+
+	if (likely(!skb->encapsulation)) {
+		skb_reset_inner_headers(skb);
+		skb->encapsulation = 1;
+	}
+
+	if (skb_is_gso(skb)) {
+		err = skb_unclone(skb, GFP_ATOMIC);
+		if (unlikely(err))
+			goto error;
+		skb_shinfo(skb)->gso_type |= SKB_GSO_GRE;
+		return skb;
+	} else if (skb->ip_summed == CHECKSUM_PARTIAL && gre_csum) {
+		err = skb_checksum_help(skb);
+		if (unlikely(err))
+			goto error;
+	} else if (skb->ip_summed != CHECKSUM_PARTIAL)
+		skb->ip_summed = CHECKSUM_NONE;
+
+	return skb;
+error:
+	kfree_skb(skb);
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(gre_handle_offloads);
+
+static __sum16 check_checksum(struct sk_buff *skb)
+{
+	__sum16 csum = 0;
+
+	switch (skb->ip_summed) {
+	case CHECKSUM_COMPLETE:
+		csum = csum_fold(skb->csum);
+
+		if (!csum)
+			break;
+		/* Fall through. */
+
+	case CHECKSUM_NONE:
+		skb->csum = 0;
+		csum = __skb_checksum_complete(skb);
+		skb->ip_summed = CHECKSUM_COMPLETE;
+		break;
+	}
+
+	return csum;
+}
+
+static int parse_gre_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
+			    bool *csum_err)
+{
+	unsigned int ip_hlen = ip_hdrlen(skb);
+	const struct gre_base_hdr *greh;
+	__be32 *options;
+	int hdr_len;
+
+	if (unlikely(!pskb_may_pull(skb, sizeof(struct gre_base_hdr))))
+		return -EINVAL;
+
+	greh = (struct gre_base_hdr *)(skb_network_header(skb) + ip_hlen);
+	if (unlikely(greh->flags & (GRE_VERSION | GRE_ROUTING)))
+		return -EINVAL;
+
+	tpi->flags = gre_flags_to_tnl_flags(greh->flags);
+	hdr_len = ip_gre_calc_hlen(tpi->flags);
+
+	if (!pskb_may_pull(skb, hdr_len))
+		return -EINVAL;
+
+	greh = (struct gre_base_hdr *)(skb_network_header(skb) + ip_hlen);
+	tpi->proto = greh->protocol;
+
+	options = (__be32 *)(greh + 1);
+	if (greh->flags & GRE_CSUM) {
+		if (check_checksum(skb)) {
+			*csum_err = true;
+			return -EINVAL;
+		}
+		options++;
+	}
+
+	if (greh->flags & GRE_KEY) {
+		tpi->key = *options;
+		options++;
+	} else
+		tpi->key = 0;
+
+	if (unlikely(greh->flags & GRE_SEQ)) {
+		tpi->seq = *options;
+		options++;
+	} else
+		tpi->seq = 0;
+
+	/* WCCP version 1 and 2 protocol decoding.
+	 * - Change protocol to IP
+	 * - When dealing with WCCPv2, Skip extra 4 bytes in GRE header
+	 */
+	if (greh->flags == 0 && tpi->proto == htons(ETH_P_WCCP)) {
+		tpi->proto = htons(ETH_P_IP);
+		if ((*(u8 *)options & 0xF0) != 0x40) {
+			hdr_len += 4;
+			if (!pskb_may_pull(skb, hdr_len))
+				return -EINVAL;
+		}
+	}
+
+	return iptunnel_pull_header(skb, hdr_len, tpi->proto);
+}
+
+static int gre_cisco_rcv(struct sk_buff *skb)
+{
+	struct tnl_ptk_info tpi;
+	int i;
+	bool csum_err = false;
+
+	if (parse_gre_header(skb, &tpi, &csum_err) < 0)
+		goto drop;
+
+	rcu_read_lock();
+	for (i = 0; i < GRE_IP_PROTO_MAX; i++) {
+		struct gre_cisco_protocol *proto;
+		int ret;
+
+		proto = rcu_dereference(gre_cisco_proto_list[i]);
+		if (!proto)
+			continue;
+		ret = proto->handler(skb, &tpi);
+		if (ret == PACKET_RCVD) {
+			rcu_read_unlock();
+			return 0;
+		}
+	}
+	rcu_read_unlock();
+
+	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
+drop:
+	kfree_skb(skb);
+	return 0;
+}
+
+static void gre_cisco_err(struct sk_buff *skb, u32 info)
+{
+	/* All the routers (except for Linux) return only
+	 * 8 bytes of packet payload. It means, that precise relaying of
+	 * ICMP in the real Internet is absolutely infeasible.
+	 *
+	 * Moreover, Cisco "wise men" put GRE key to the third word
+	 * in GRE header. It makes impossible maintaining even soft
+	 * state for keyed
+	 * GRE tunnels with enabled checksum. Tell them "thank you".
+	 *
+	 * Well, I wonder, rfc1812 was written by Cisco employee,
+	 * what the hell these idiots break standards established
+	 * by themselves???
+	 */
+
+	const int type = icmp_hdr(skb)->type;
+	const int code = icmp_hdr(skb)->code;
+	struct tnl_ptk_info tpi;
+	bool csum_err = false;
+	int i;
+
+	if (parse_gre_header(skb, &tpi, &csum_err)) {
+		if (!csum_err)		/* ignore csum errors. */
+			return;
+	}
+
+	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
+		ipv4_update_pmtu(skb, dev_net(skb->dev), info,
+				skb->dev->ifindex, 0, IPPROTO_GRE, 0);
+		return;
+	}
+	if (type == ICMP_REDIRECT) {
+		ipv4_redirect(skb, dev_net(skb->dev), skb->dev->ifindex, 0,
+				IPPROTO_GRE, 0);
+		return;
+	}
+
+	rcu_read_lock();
+	for (i = 0; i < GRE_IP_PROTO_MAX; i++) {
+		struct gre_cisco_protocol *proto;
+
+		proto = rcu_dereference(gre_cisco_proto_list[i]);
+		if (!proto)
+			continue;
+
+		if (proto->err_handler(skb, info, &tpi) == PACKET_RCVD)
+			goto out;
+
+	}
+out:
+	rcu_read_unlock();
+}
+
+static int gre_rcv(struct sk_buff *skb)
+{
+	const struct gre_protocol *proto;
+	u8 ver;
+	int ret;
+
+	if (!pskb_may_pull(skb, 12))
+		goto drop;
+
+	ver = skb->data[1]&0x7f;
+	if (ver >= GREPROTO_MAX)
+		goto drop;
+
+	rcu_read_lock();
+	proto = rcu_dereference(gre_proto[ver]);
+	if (!proto || !proto->handler)
+		goto drop_unlock;
+	ret = proto->handler(skb);
+	rcu_read_unlock();
+	return ret;
+
+drop_unlock:
+	rcu_read_unlock();
+drop:
+	kfree_skb(skb);
+	return NET_RX_DROP;
+}
+
+static void gre_err(struct sk_buff *skb, u32 info)
+{
+	const struct gre_protocol *proto;
+	const struct iphdr *iph = (const struct iphdr *)skb->data;
+	u8 ver = skb->data[(iph->ihl<<2) + 1]&0x7f;
+
+	if (ver >= GREPROTO_MAX)
+		return;
+
+	rcu_read_lock();
+	proto = rcu_dereference(gre_proto[ver]);
+	if (proto && proto->err_handler)
+		proto->err_handler(skb, info);
+	rcu_read_unlock();
+}
+
+static const struct net_protocol net_gre_protocol = {
+	.handler     = gre_rcv,
+	.err_handler = gre_err,
+	.netns_ok    = 1,
+};
+
+static const struct gre_protocol ipgre_protocol = {
+	.handler     = gre_cisco_rcv,
+	.err_handler = gre_cisco_err,
+};
+
+int gre_cisco_register(struct gre_cisco_protocol *newp)
+{
+	struct gre_cisco_protocol **proto = (struct gre_cisco_protocol **)
+					    &gre_cisco_proto_list[newp->priority];
+
+	return (cmpxchg(proto, NULL, newp) == NULL) ? 0 : -EBUSY;
+}
+EXPORT_SYMBOL_GPL(gre_cisco_register);
+
+int gre_cisco_unregister(struct gre_cisco_protocol *del_proto)
+{
+	struct gre_cisco_protocol **proto = (struct gre_cisco_protocol **)
+					    &gre_cisco_proto_list[del_proto->priority];
+	int ret;
+
+	ret = (cmpxchg(proto, del_proto, NULL) == del_proto) ? 0 : -EINVAL;
+
+	if (ret)
+		return ret;
+
+	synchronize_net();
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gre_cisco_unregister);
+
+static int __init gre_init(void)
+{
+	pr_info("GRE over IPv4 demultiplexor driver\n");
+
+	if (inet_add_protocol(&net_gre_protocol, IPPROTO_GRE) < 0) {
+		pr_err("can't add protocol\n");
+		goto err;
+	}
+
+	if (gre_add_protocol(&ipgre_protocol, GREPROTO_CISCO) < 0) {
+		pr_info("%s: can't add ipgre handler\n", __func__);
+		goto err_gre;
+	}
+
+	if (gre_offload_init()) {
+		pr_err("can't add protocol offload\n");
+		goto err_gso;
+	}
+
+	return 0;
+err_gso:
+	gre_del_protocol(&ipgre_protocol, GREPROTO_CISCO);
+err_gre:
+	inet_del_protocol(&net_gre_protocol, IPPROTO_GRE);
+err:
+	return -EAGAIN;
+}
+
+static void __exit gre_exit(void)
+{
+	gre_offload_exit();
+
+	gre_del_protocol(&ipgre_protocol, GREPROTO_CISCO);
+	inet_del_protocol(&net_gre_protocol, IPPROTO_GRE);
+}
+
+module_init(gre_init);
+module_exit(gre_exit);
+
+MODULE_DESCRIPTION("GRE over IPv4 demultiplexer driver");
+MODULE_AUTHOR("D. Kozlov (xeb@mail.ru)");
+MODULE_LICENSE("GPL");
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
new file mode 100644
index 0000000..a9d8cd2
--- /dev/null
+++ b/net/ipv4/gre_offload.c
@@ -0,0 +1,127 @@
+/*
+ *	IPV4 GSO/GRO offload support
+ *	Linux INET implementation
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *	GRE GSO support
+ */
+
+#include <linux/skbuff.h>
+#include <net/protocol.h>
+#include <net/gre.h>
+
+static int gre_gso_send_check(struct sk_buff *skb)
+{
+	if (!skb->encapsulation)
+		return -EINVAL;
+	return 0;
+}
+
+static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
+				       netdev_features_t features)
+{
+	struct sk_buff *segs = ERR_PTR(-EINVAL);
+	netdev_features_t enc_features;
+	int ghl = GRE_HEADER_SECTION;
+	struct gre_base_hdr *greh;
+	int mac_len = skb->mac_len;
+	__be16 protocol = skb->protocol;
+	int tnl_hlen;
+	bool csum;
+
+	if (unlikely(skb_shinfo(skb)->gso_type &
+				~(SKB_GSO_TCPV4 |
+				  SKB_GSO_TCPV6 |
+				  SKB_GSO_UDP |
+				  SKB_GSO_DODGY |
+				  SKB_GSO_TCP_ECN |
+				  SKB_GSO_GRE)))
+		goto out;
+
+	if (unlikely(!pskb_may_pull(skb, sizeof(*greh))))
+		goto out;
+
+	greh = (struct gre_base_hdr *)skb_transport_header(skb);
+
+	if (greh->flags & GRE_KEY)
+		ghl += GRE_HEADER_SECTION;
+	if (greh->flags & GRE_SEQ)
+		ghl += GRE_HEADER_SECTION;
+	if (greh->flags & GRE_CSUM) {
+		ghl += GRE_HEADER_SECTION;
+		csum = true;
+	} else
+		csum = false;
+
+	/* setup inner skb. */
+	skb->protocol = greh->protocol;
+	skb->encapsulation = 0;
+
+	if (unlikely(!pskb_may_pull(skb, ghl)))
+		goto out;
+
+	__skb_pull(skb, ghl);
+	skb_reset_mac_header(skb);
+	skb_set_network_header(skb, skb_inner_network_offset(skb));
+	skb->mac_len = skb_inner_network_offset(skb);
+
+	/* segment inner packet. */
+	enc_features = skb->dev->hw_enc_features & netif_skb_features(skb);
+	segs = skb_mac_gso_segment(skb, enc_features);
+	if (!segs || IS_ERR(segs))
+		goto out;
+
+	skb = segs;
+	tnl_hlen = skb_tnl_header_len(skb);
+	do {
+		__skb_push(skb, ghl);
+		if (csum) {
+			__be32 *pcsum;
+
+			if (skb_has_shared_frag(skb)) {
+				int err;
+
+				err = __skb_linearize(skb);
+				if (err) {
+					kfree_skb(segs);
+					segs = ERR_PTR(err);
+					goto out;
+				}
+			}
+
+			greh = (struct gre_base_hdr *)(skb->data);
+			pcsum = (__be32 *)(greh + 1);
+			*pcsum = 0;
+			*(__sum16 *)pcsum = csum_fold(skb_checksum(skb, 0, skb->len, 0));
+		}
+		__skb_push(skb, tnl_hlen - ghl);
+
+		skb_reset_mac_header(skb);
+		skb_set_network_header(skb, mac_len);
+		skb->mac_len = mac_len;
+		skb->protocol = protocol;
+	} while ((skb = skb->next));
+out:
+	return segs;
+}
+
+static const struct net_offload gre_offload = {
+	.callbacks = {
+		.gso_send_check = gre_gso_send_check,
+		.gso_segment = gre_gso_segment,
+	},
+};
+
+int __init gre_offload_init(void)
+{
+	return inet_add_offload(&gre_offload, IPPROTO_GRE);
+}
+
+void __exit gre_offload_exit(void)
+{
+	inet_del_offload(&gre_offload, IPPROTO_GRE);
+}
-- 
cgit v0.10.2


From bc2bebe8de8ed4ba6482c9cc370b0dd72ffe8cd2 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 3 Jul 2013 21:48:11 +0200
Subject: alx: remove WoL support

Unfortunately, WoL is broken and the system will immediately
resume after suspending, and I can't seem to figure out why.
Remove WoL support until the issue can be found.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/atheros/alx/ethtool.c b/drivers/net/ethernet/atheros/alx/ethtool.c
index 9261006..45b3650 100644
--- a/drivers/net/ethernet/atheros/alx/ethtool.c
+++ b/drivers/net/ethernet/atheros/alx/ethtool.c
@@ -201,40 +201,6 @@ static void alx_set_msglevel(struct net_device *netdev, u32 data)
 	alx->msg_enable = data;
 }
 
-static void alx_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-{
-	struct alx_priv *alx = netdev_priv(netdev);
-	struct alx_hw *hw = &alx->hw;
-
-	wol->supported = WAKE_MAGIC | WAKE_PHY;
-	wol->wolopts = 0;
-
-	if (hw->sleep_ctrl & ALX_SLEEP_WOL_MAGIC)
-		wol->wolopts |= WAKE_MAGIC;
-	if (hw->sleep_ctrl & ALX_SLEEP_WOL_PHY)
-		wol->wolopts |= WAKE_PHY;
-}
-
-static int alx_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
-{
-	struct alx_priv *alx = netdev_priv(netdev);
-	struct alx_hw *hw = &alx->hw;
-
-	if (wol->wolopts & ~(WAKE_MAGIC | WAKE_PHY))
-		return -EOPNOTSUPP;
-
-	hw->sleep_ctrl = 0;
-
-	if (wol->wolopts & WAKE_MAGIC)
-		hw->sleep_ctrl |= ALX_SLEEP_WOL_MAGIC;
-	if (wol->wolopts & WAKE_PHY)
-		hw->sleep_ctrl |= ALX_SLEEP_WOL_PHY;
-
-	device_set_wakeup_enable(&alx->hw.pdev->dev, hw->sleep_ctrl);
-
-	return 0;
-}
-
 const struct ethtool_ops alx_ethtool_ops = {
 	.get_settings	= alx_get_settings,
 	.set_settings	= alx_set_settings,
@@ -242,7 +208,5 @@ const struct ethtool_ops alx_ethtool_ops = {
 	.set_pauseparam	= alx_set_pauseparam,
 	.get_msglevel	= alx_get_msglevel,
 	.set_msglevel	= alx_set_msglevel,
-	.get_wol	= alx_get_wol,
-	.set_wol	= alx_set_wol,
 	.get_link	= ethtool_op_get_link,
 };
diff --git a/drivers/net/ethernet/atheros/alx/hw.c b/drivers/net/ethernet/atheros/alx/hw.c
index ea99e5d..1e8c24a 100644
--- a/drivers/net/ethernet/atheros/alx/hw.c
+++ b/drivers/net/ethernet/atheros/alx/hw.c
@@ -332,16 +332,6 @@ void alx_set_macaddr(struct alx_hw *hw, const u8 *addr)
 	alx_write_mem32(hw, ALX_STAD1, val);
 }
 
-static void alx_enable_osc(struct alx_hw *hw)
-{
-	u32 val;
-
-	/* rising edge */
-	val = alx_read_mem32(hw, ALX_MISC);
-	alx_write_mem32(hw, ALX_MISC, val & ~ALX_MISC_INTNLOSC_OPEN);
-	alx_write_mem32(hw, ALX_MISC, val | ALX_MISC_INTNLOSC_OPEN);
-}
-
 static void alx_reset_osc(struct alx_hw *hw, u8 rev)
 {
 	u32 val, val2;
@@ -858,66 +848,6 @@ void alx_post_phy_link(struct alx_hw *hw)
 	}
 }
 
-
-/* NOTE:
- *    1. phy link must be established before calling this function
- *    2. wol option (pattern,magic,link,etc.) is configed before call it.
- */
-int alx_pre_suspend(struct alx_hw *hw, int speed, u8 duplex)
-{
-	u32 master, mac, phy, val;
-	int err = 0;
-
-	master = alx_read_mem32(hw, ALX_MASTER);
-	master &= ~ALX_MASTER_PCLKSEL_SRDS;
-	mac = hw->rx_ctrl;
-	/* 10/100 half */
-	ALX_SET_FIELD(mac, ALX_MAC_CTRL_SPEED,  ALX_MAC_CTRL_SPEED_10_100);
-	mac &= ~(ALX_MAC_CTRL_FULLD | ALX_MAC_CTRL_RX_EN | ALX_MAC_CTRL_TX_EN);
-
-	phy = alx_read_mem32(hw, ALX_PHY_CTRL);
-	phy &= ~(ALX_PHY_CTRL_DSPRST_OUT | ALX_PHY_CTRL_CLS);
-	phy |= ALX_PHY_CTRL_RST_ANALOG | ALX_PHY_CTRL_HIB_PULSE |
-	       ALX_PHY_CTRL_HIB_EN;
-
-	/* without any activity  */
-	if (!(hw->sleep_ctrl & ALX_SLEEP_ACTIVE)) {
-		err = alx_write_phy_reg(hw, ALX_MII_IER, 0);
-		if (err)
-			return err;
-		phy |= ALX_PHY_CTRL_IDDQ | ALX_PHY_CTRL_POWER_DOWN;
-	} else {
-		if (hw->sleep_ctrl & (ALX_SLEEP_WOL_MAGIC | ALX_SLEEP_CIFS))
-			mac |= ALX_MAC_CTRL_RX_EN | ALX_MAC_CTRL_BRD_EN;
-		if (hw->sleep_ctrl & ALX_SLEEP_CIFS)
-			mac |= ALX_MAC_CTRL_TX_EN;
-		if (duplex == DUPLEX_FULL)
-			mac |= ALX_MAC_CTRL_FULLD;
-		if (speed == SPEED_1000)
-			ALX_SET_FIELD(mac, ALX_MAC_CTRL_SPEED,
-				      ALX_MAC_CTRL_SPEED_1000);
-		phy |= ALX_PHY_CTRL_DSPRST_OUT;
-		err = alx_write_phy_ext(hw, ALX_MIIEXT_ANEG,
-					ALX_MIIEXT_S3DIG10,
-					ALX_MIIEXT_S3DIG10_SL);
-		if (err)
-			return err;
-	}
-
-	alx_enable_osc(hw);
-	hw->rx_ctrl = mac;
-	alx_write_mem32(hw, ALX_MASTER, master);
-	alx_write_mem32(hw, ALX_MAC_CTRL, mac);
-	alx_write_mem32(hw, ALX_PHY_CTRL, phy);
-
-	/* set val of PDLL D3PLLOFF */
-	val = alx_read_mem32(hw, ALX_PDLL_TRNS1);
-	val |= ALX_PDLL_TRNS1_D3PLLOFF_EN;
-	alx_write_mem32(hw, ALX_PDLL_TRNS1, val);
-
-	return 0;
-}
-
 bool alx_phy_configured(struct alx_hw *hw)
 {
 	u32 cfg, hw_cfg;
@@ -990,26 +920,6 @@ int alx_clear_phy_intr(struct alx_hw *hw)
 	return alx_read_phy_reg(hw, ALX_MII_ISR, &isr);
 }
 
-int alx_config_wol(struct alx_hw *hw)
-{
-	u32 wol = 0;
-	int err = 0;
-
-	/* turn on magic packet event */
-	if (hw->sleep_ctrl & ALX_SLEEP_WOL_MAGIC)
-		wol |= ALX_WOL0_MAGIC_EN | ALX_WOL0_PME_MAGIC_EN;
-
-	/* turn on link up event */
-	if (hw->sleep_ctrl & ALX_SLEEP_WOL_PHY) {
-		wol |=  ALX_WOL0_LINK_EN | ALX_WOL0_PME_LINK;
-		/* only link up can wake up */
-		err = alx_write_phy_reg(hw, ALX_MII_IER, ALX_IER_LINK_UP);
-	}
-	alx_write_mem32(hw, ALX_WOL0, wol);
-
-	return err;
-}
-
 void alx_disable_rss(struct alx_hw *hw)
 {
 	u32 ctrl = alx_read_mem32(hw, ALX_RXQ0);
@@ -1121,71 +1031,6 @@ void alx_configure_basic(struct alx_hw *hw)
 	alx_write_mem32(hw, ALX_WRR, val);
 }
 
-int alx_select_powersaving_speed(struct alx_hw *hw, int *speed, u8 *duplex)
-{
-	int i, err;
-	u16 lpa;
-
-	err = alx_read_phy_link(hw);
-	if (err)
-		return err;
-
-	if (hw->link_speed == SPEED_UNKNOWN) {
-		*speed = SPEED_UNKNOWN;
-		*duplex = DUPLEX_UNKNOWN;
-		return 0;
-	}
-
-	err = alx_read_phy_reg(hw, MII_LPA, &lpa);
-	if (err)
-		return err;
-
-	if (!(lpa & LPA_LPACK)) {
-		*speed = hw->link_speed;
-		return 0;
-	}
-
-	if (lpa & LPA_10FULL) {
-		*speed = SPEED_10;
-		*duplex = DUPLEX_FULL;
-	} else if (lpa & LPA_10HALF) {
-		*speed = SPEED_10;
-		*duplex = DUPLEX_HALF;
-	} else if (lpa & LPA_100FULL) {
-		*speed = SPEED_100;
-		*duplex = DUPLEX_FULL;
-	} else {
-		*speed = SPEED_100;
-		*duplex = DUPLEX_HALF;
-	}
-
-	if (*speed == hw->link_speed && *duplex == hw->duplex)
-		return 0;
-	err = alx_write_phy_reg(hw, ALX_MII_IER, 0);
-	if (err)
-		return err;
-	err = alx_setup_speed_duplex(hw, alx_speed_to_ethadv(*speed, *duplex) |
-					 ADVERTISED_Autoneg, ALX_FC_ANEG |
-					 ALX_FC_RX | ALX_FC_TX);
-	if (err)
-		return err;
-
-	/* wait for linkup */
-	for (i = 0; i < ALX_MAX_SETUP_LNK_CYCLE; i++) {
-		msleep(100);
-
-		err = alx_read_phy_link(hw);
-		if (err < 0)
-			return err;
-		if (hw->link_speed != SPEED_UNKNOWN)
-			break;
-	}
-	if (i == ALX_MAX_SETUP_LNK_CYCLE)
-		return -ETIMEDOUT;
-
-	return 0;
-}
-
 bool alx_get_phy_info(struct alx_hw *hw)
 {
 	u16  devs1, devs2;
diff --git a/drivers/net/ethernet/atheros/alx/hw.h b/drivers/net/ethernet/atheros/alx/hw.h
index a60e35c..96f3b43 100644
--- a/drivers/net/ethernet/atheros/alx/hw.h
+++ b/drivers/net/ethernet/atheros/alx/hw.h
@@ -418,8 +418,6 @@ struct alx_hw {
 	u8 flowctrl;
 	u32 adv_cfg;
 
-	u32 sleep_ctrl;
-
 	spinlock_t mdio_lock;
 	struct mdio_if_info mdio;
 	u16 phy_id[2];
@@ -479,14 +477,12 @@ void alx_reset_pcie(struct alx_hw *hw);
 void alx_enable_aspm(struct alx_hw *hw, bool l0s_en, bool l1_en);
 int alx_setup_speed_duplex(struct alx_hw *hw, u32 ethadv, u8 flowctrl);
 void alx_post_phy_link(struct alx_hw *hw);
-int alx_pre_suspend(struct alx_hw *hw, int speed, u8 duplex);
 int alx_read_phy_reg(struct alx_hw *hw, u16 reg, u16 *phy_data);
 int alx_write_phy_reg(struct alx_hw *hw, u16 reg, u16 phy_data);
 int alx_read_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 *pdata);
 int alx_write_phy_ext(struct alx_hw *hw, u8 dev, u16 reg, u16 data);
 int alx_read_phy_link(struct alx_hw *hw);
 int alx_clear_phy_intr(struct alx_hw *hw);
-int alx_config_wol(struct alx_hw *hw);
 void alx_cfg_mac_flowcontrol(struct alx_hw *hw, u8 fc);
 void alx_start_mac(struct alx_hw *hw);
 int alx_reset_mac(struct alx_hw *hw);
@@ -494,7 +490,6 @@ void alx_set_macaddr(struct alx_hw *hw, const u8 *addr);
 bool alx_phy_configured(struct alx_hw *hw);
 void alx_configure_basic(struct alx_hw *hw);
 void alx_disable_rss(struct alx_hw *hw);
-int alx_select_powersaving_speed(struct alx_hw *hw, int *speed, u8 *duplex);
 bool alx_get_phy_info(struct alx_hw *hw);
 
 static inline u32 alx_speed_to_ethadv(int speed, u8 duplex)
diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index 148b4b9..0e0b242 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -706,7 +706,6 @@ static int alx_init_sw(struct alx_priv *alx)
 	alx->rxbuf_size = ALIGN(ALX_RAW_MTU(hw->mtu), 8);
 	alx->tx_ringsz = 256;
 	alx->rx_ringsz = 512;
-	hw->sleep_ctrl = ALX_SLEEP_WOL_MAGIC | ALX_SLEEP_WOL_PHY;
 	hw->imt = 200;
 	alx->int_mask = ALX_ISR_MISC;
 	hw->dma_chnl = hw->max_dma_chnl;
@@ -961,66 +960,6 @@ static int alx_stop(struct net_device *netdev)
 	return 0;
 }
 
-static int __alx_shutdown(struct pci_dev *pdev, bool *wol_en)
-{
-	struct alx_priv *alx = pci_get_drvdata(pdev);
-	struct net_device *netdev = alx->dev;
-	struct alx_hw *hw = &alx->hw;
-	int err, speed;
-	u8 duplex;
-
-	netif_device_detach(netdev);
-
-	if (netif_running(netdev))
-		__alx_stop(alx);
-
-#ifdef CONFIG_PM_SLEEP
-	err = pci_save_state(pdev);
-	if (err)
-		return err;
-#endif
-
-	err = alx_select_powersaving_speed(hw, &speed, &duplex);
-	if (err)
-		return err;
-	err = alx_clear_phy_intr(hw);
-	if (err)
-		return err;
-	err = alx_pre_suspend(hw, speed, duplex);
-	if (err)
-		return err;
-	err = alx_config_wol(hw);
-	if (err)
-		return err;
-
-	*wol_en = false;
-	if (hw->sleep_ctrl & ALX_SLEEP_ACTIVE) {
-		netif_info(alx, wol, netdev,
-			   "wol: ctrl=%X, speed=%X\n",
-			   hw->sleep_ctrl, speed);
-		device_set_wakeup_enable(&pdev->dev, true);
-		*wol_en = true;
-	}
-
-	pci_disable_device(pdev);
-
-	return 0;
-}
-
-static void alx_shutdown(struct pci_dev *pdev)
-{
-	int err;
-	bool wol_en;
-
-	err = __alx_shutdown(pdev, &wol_en);
-	if (!err) {
-		pci_wake_from_d3(pdev, wol_en);
-		pci_set_power_state(pdev, PCI_D3hot);
-	} else {
-		dev_err(&pdev->dev, "shutdown fail %d\n", err);
-	}
-}
-
 static void alx_link_check(struct work_struct *work)
 {
 	struct alx_priv *alx;
@@ -1399,8 +1338,6 @@ static int alx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto out_unmap;
 	}
 
-	device_set_wakeup_enable(&pdev->dev, hw->sleep_ctrl);
-
 	netdev_info(netdev,
 		    "Qualcomm Atheros AR816x/AR817x Ethernet [%pM]\n",
 		    netdev->dev_addr);
@@ -1445,22 +1382,12 @@ static void alx_remove(struct pci_dev *pdev)
 static int alx_suspend(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
-	int err;
-	bool wol_en;
-
-	err = __alx_shutdown(pdev, &wol_en);
-	if (err) {
-		dev_err(&pdev->dev, "shutdown fail in suspend %d\n", err);
-		return err;
-	}
-
-	if (wol_en) {
-		pci_prepare_to_sleep(pdev);
-	} else {
-		pci_wake_from_d3(pdev, false);
-		pci_set_power_state(pdev, PCI_D3hot);
-	}
+	struct alx_priv *alx = pci_get_drvdata(pdev);
 
+	if (!netif_running(alx->dev))
+		return 0;
+	netif_device_detach(alx->dev);
+	__alx_stop(alx);
 	return 0;
 }
 
@@ -1468,49 +1395,20 @@ static int alx_resume(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct alx_priv *alx = pci_get_drvdata(pdev);
-	struct net_device *netdev = alx->dev;
-	struct alx_hw *hw = &alx->hw;
-	int err;
-
-	pci_set_power_state(pdev, PCI_D0);
-	pci_restore_state(pdev);
-	pci_save_state(pdev);
-
-	pci_enable_wake(pdev, PCI_D3hot, 0);
-	pci_enable_wake(pdev, PCI_D3cold, 0);
-
-	hw->link_speed = SPEED_UNKNOWN;
-	alx->int_mask = ALX_ISR_MISC;
-
-	alx_reset_pcie(hw);
-	alx_reset_phy(hw);
-
-	err = alx_reset_mac(hw);
-	if (err) {
-		netif_err(alx, hw, alx->dev,
-			  "resume:reset_mac fail %d\n", err);
-		return -EIO;
-	}
-
-	err = alx_setup_speed_duplex(hw, hw->adv_cfg, hw->flowctrl);
-	if (err) {
-		netif_err(alx, hw, alx->dev,
-			  "resume:setup_speed_duplex fail %d\n", err);
-		return -EIO;
-	}
-
-	if (netif_running(netdev)) {
-		err = __alx_open(alx, true);
-		if (err)
-			return err;
-	}
-
-	netif_device_attach(netdev);
 
-	return err;
+	if (!netif_running(alx->dev))
+		return 0;
+	netif_device_attach(alx->dev);
+	return __alx_open(alx, true);
 }
+
+static SIMPLE_DEV_PM_OPS(alx_pm_ops, alx_suspend, alx_resume);
+#define ALX_PM_OPS      (&alx_pm_ops)
+#else
+#define ALX_PM_OPS      NULL
 #endif
 
+
 static pci_ers_result_t alx_pci_error_detected(struct pci_dev *pdev,
 					       pci_channel_state_t state)
 {
@@ -1553,8 +1451,6 @@ static pci_ers_result_t alx_pci_error_slot_reset(struct pci_dev *pdev)
 	}
 
 	pci_set_master(pdev);
-	pci_enable_wake(pdev, PCI_D3hot, 0);
-	pci_enable_wake(pdev, PCI_D3cold, 0);
 
 	alx_reset_pcie(hw);
 	if (!alx_reset_mac(hw))
@@ -1590,13 +1486,6 @@ static const struct pci_error_handlers alx_err_handlers = {
 	.resume         = alx_pci_error_resume,
 };
 
-#ifdef CONFIG_PM_SLEEP
-static SIMPLE_DEV_PM_OPS(alx_pm_ops, alx_suspend, alx_resume);
-#define ALX_PM_OPS      (&alx_pm_ops)
-#else
-#define ALX_PM_OPS      NULL
-#endif
-
 static DEFINE_PCI_DEVICE_TABLE(alx_pci_tbl) = {
 	{ PCI_VDEVICE(ATTANSIC, ALX_DEV_ID_AR8161),
 	  .driver_data = ALX_DEV_QUIRK_MSI_INTX_DISABLE_BUG },
@@ -1614,7 +1503,6 @@ static struct pci_driver alx_driver = {
 	.id_table    = alx_pci_tbl,
 	.probe       = alx_probe,
 	.remove      = alx_remove,
-	.shutdown    = alx_shutdown,
 	.err_handler = &alx_err_handlers,
 	.driver.pm   = ALX_PM_OPS,
 };
-- 
cgit v0.10.2


From cdffcf1bc721032d261a7a9da353b41f0d830410 Mon Sep 17 00:00:00 2001
From: Jim Baxter <jim_baxter@mentor.com>
Date: Tue, 2 Jul 2013 22:52:56 +0100
Subject: net: fec: Add VLAN receive HW support.

This enables the driver to take advantage of the FEC VLAN
indicator to improve performance.

Signed-off-by: Jim Baxter <jim_baxter@mentor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index 8362a03..2b0a0ea 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -203,6 +203,9 @@ struct bufdesc_ex {
 #define BD_ENET_RX_CL           ((ushort)0x0001)
 #define BD_ENET_RX_STATS        ((ushort)0x013f)        /* All status bits */
 
+/* Enhanced buffer descriptor control/status used by Ethernet receive */
+#define BD_ENET_RX_VLAN         0x00000004
+
 /* Buffer descriptor control/status used by Ethernet transmit.
 */
 #define BD_ENET_TX_READY        ((ushort)0x8000)
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 1f7ff22..d3ad5ea 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -54,6 +54,7 @@
 #include <linux/of_gpio.h>
 #include <linux/of_net.h>
 #include <linux/regulator/consumer.h>
+#include <linux/if_vlan.h>
 
 #include <asm/cacheflush.h>
 
@@ -90,6 +91,8 @@ static void set_multicast_list(struct net_device *ndev);
 #define FEC_QUIRK_HAS_BUFDESC_EX	(1 << 4)
 /* Controller has hardware checksum support */
 #define FEC_QUIRK_HAS_CSUM		(1 << 5)
+/* Controller has hardware vlan support */
+#define FEC_QUIRK_HAS_VLAN		(1 << 6)
 
 static struct platform_device_id fec_devtype[] = {
 	{
@@ -108,7 +111,8 @@ static struct platform_device_id fec_devtype[] = {
 	}, {
 		.name = "imx6q-fec",
 		.driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT |
-				FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM,
+				FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
+				FEC_QUIRK_HAS_VLAN,
 	}, {
 		.name = "mvf600-fec",
 		.driver_data = FEC_QUIRK_ENET_MAC,
@@ -179,11 +183,11 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address");
 #define FEC_DEFAULT_IMASK (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII)
 #define FEC_RX_DISABLED_IMASK (FEC_DEFAULT_IMASK & (~FEC_ENET_RXF))
 
-/* The FEC stores dest/src/type, data, and checksum for receive packets.
+/* The FEC stores dest/src/type/vlan, data, and checksum for receive packets.
  */
-#define PKT_MAXBUF_SIZE		1518
+#define PKT_MAXBUF_SIZE		1522
 #define PKT_MINBUF_SIZE		64
-#define PKT_MAXBLR_SIZE		1520
+#define PKT_MAXBLR_SIZE		1536
 
 /* FEC receive acceleration */
 #define FEC_RACC_IPDIS		(1 << 1)
@@ -806,6 +810,9 @@ fec_enet_rx(struct net_device *ndev, int budget)
 	ushort	pkt_len;
 	__u8 *data;
 	int	pkt_received = 0;
+	struct	bufdesc_ex *ebdp = NULL;
+	bool	vlan_packet_rcvd = false;
+	u16	vlan_tag;
 
 #ifdef CONFIG_M532x
 	flush_cache_all();
@@ -869,6 +876,24 @@ fec_enet_rx(struct net_device *ndev, int budget)
 		if (id_entry->driver_data & FEC_QUIRK_SWAP_FRAME)
 			swap_buffer(data, pkt_len);
 
+		/* Extract the enhanced buffer descriptor */
+		ebdp = NULL;
+		if (fep->bufdesc_ex)
+			ebdp = (struct bufdesc_ex *)bdp;
+
+		/* If this is a VLAN packet remove the VLAN Tag */
+		vlan_packet_rcvd = false;
+		if ((ndev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
+		    fep->bufdesc_ex && (ebdp->cbd_esc & BD_ENET_RX_VLAN)) {
+			/* Push and remove the vlan tag */
+			struct vlan_hdr *vlan_header =
+					(struct vlan_hdr *) (data + ETH_HLEN);
+			vlan_tag = ntohs(vlan_header->h_vlan_TCI);
+			pkt_len -= VLAN_HLEN;
+
+			vlan_packet_rcvd = true;
+		}
+
 		/* This does 16 byte alignment, exactly what we need.
 		 * The packet length includes FCS, but we don't want to
 		 * include that when passing upstream as it messes up
@@ -879,9 +904,18 @@ fec_enet_rx(struct net_device *ndev, int budget)
 		if (unlikely(!skb)) {
 			ndev->stats.rx_dropped++;
 		} else {
+			int payload_offset = (2 * ETH_ALEN);
 			skb_reserve(skb, NET_IP_ALIGN);
 			skb_put(skb, pkt_len - 4);	/* Make room */
-			skb_copy_to_linear_data(skb, data, pkt_len - 4);
+
+			/* Extract the frame data without the VLAN header. */
+			skb_copy_to_linear_data(skb, data, (2 * ETH_ALEN));
+			if (vlan_packet_rcvd)
+				payload_offset = (2 * ETH_ALEN) + VLAN_HLEN;
+			skb_copy_to_linear_data_offset(skb, (2 * ETH_ALEN),
+						       data + payload_offset,
+						       pkt_len - 4 - (2 * ETH_ALEN));
+
 			skb->protocol = eth_type_trans(skb, ndev);
 
 			/* Get receive timestamp from the skb */
@@ -889,8 +923,6 @@ fec_enet_rx(struct net_device *ndev, int budget)
 				struct skb_shared_hwtstamps *shhwtstamps =
 							    skb_hwtstamps(skb);
 				unsigned long flags;
-				struct bufdesc_ex *ebdp =
-					(struct bufdesc_ex *)bdp;
 
 				memset(shhwtstamps, 0, sizeof(*shhwtstamps));
 
@@ -901,9 +933,7 @@ fec_enet_rx(struct net_device *ndev, int budget)
 			}
 
 			if (fep->bufdesc_ex &&
-				(fep->csum_flags & FLAG_RX_CSUM_ENABLED)) {
-				struct bufdesc_ex *ebdp =
-					(struct bufdesc_ex *)bdp;
+			    (fep->csum_flags & FLAG_RX_CSUM_ENABLED)) {
 				if (!(ebdp->cbd_esc & FLAG_RX_CSUM_ERROR)) {
 					/* don't check it */
 					skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -912,6 +942,12 @@ fec_enet_rx(struct net_device *ndev, int budget)
 				}
 			}
 
+			/* Handle received VLAN packets */
+			if (vlan_packet_rcvd)
+				__vlan_hwaccel_put_tag(skb,
+						       htons(ETH_P_8021Q),
+						       vlan_tag);
+
 			if (!skb_defer_rx_timestamp(skb))
 				napi_gro_receive(&fep->napi, skb);
 		}
@@ -1924,6 +1960,12 @@ static int fec_enet_init(struct net_device *ndev)
 	writel(FEC_RX_DISABLED_IMASK, fep->hwp + FEC_IMASK);
 	netif_napi_add(ndev, &fep->napi, fec_enet_rx_napi, FEC_NAPI_WEIGHT);
 
+	if (id_entry->driver_data & FEC_QUIRK_HAS_VLAN) {
+		/* enable hw VLAN support */
+		ndev->features |= NETIF_F_HW_VLAN_CTAG_RX;
+		ndev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
+	}
+
 	if (id_entry->driver_data & FEC_QUIRK_HAS_CSUM) {
 		/* enable hw accelerator */
 		ndev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM
-- 
cgit v0.10.2


From 4bc41b84e9b4d904f68cba2dbe0c60a5428c27c4 Mon Sep 17 00:00:00 2001
From: Joe Stringer <joe@wand.net.nz>
Date: Wed, 3 Jul 2013 16:04:25 +0900
Subject: core: Copy inner_protocol in copy_skb_header()

inner_protocol was added to struct sk_buff in
0d89d2035fe063461a5ddb609b2c12e7fb006e44 ("MPLS: Add limited GSO support"),
which is scheduled to be included in v3.11.

That patch did not update __copy_skb_header to copy the inner_protocol.

Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 77971a3..724bb7c 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -697,6 +697,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->transport_header	= old->transport_header;
 	new->network_header	= old->network_header;
 	new->mac_header		= old->mac_header;
+	new->inner_protocol	= old->inner_protocol;
 	new->inner_transport_header = old->inner_transport_header;
 	new->inner_network_header = old->inner_network_header;
 	new->inner_mac_header = old->inner_mac_header;
-- 
cgit v0.10.2


From 9caf83c32be1dabf000ab7dc8430fba4f7d89e65 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 3 Jul 2013 12:37:46 +0300
Subject: net/mlx4: fix small memory leak on error

"work" needs to be freed before returning on this error path.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 707a7d0..299d018 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -1572,6 +1572,7 @@ int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
 					   vp_admin->default_vlan,
 					   &admin_vlan_ix);
 		if (err) {
+			kfree(work);
 			mlx4_warn((&priv->dev),
 				  "No vlan resources slave %d, port %d\n",
 				  slave, port);
-- 
cgit v0.10.2


From 9eb5bf838d06aa6ddebe4aca6b5cedcf2eb53b86 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 3 Jul 2013 05:02:22 -0700
Subject: net: sock: fix TCP_SKB_MIN_TRUESIZE

commit eea86af6b1e18d ("net: sock: adapt SOCK_MIN_RCVBUF and
SOCK_MIN_SNDBUF") forgot the sk_buff alignment taken into account
in __alloc_skb() : skb->truesize = SKB_TRUESIZE(size);

While above commit fixed the sender issue, the receiver is still
dropping the second packet (on loopback device), because the receiver
socket can not really hold two skbs :
First packet truesize already is above sk_rcvbuf, so even TCP coalescing
cannot help.

On a typical 64bit build, each tcp skb truesize is 2304, instead of 2272

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Tested-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sock.h b/include/net/sock.h
index ea6206c..95a5a2c 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2052,7 +2052,7 @@ static inline void sk_wake_async(struct sock *sk, int how, int band)
  * Note: for send buffers, TCP works better if we can build two skbs at
  * minimum.
  */
-#define TCP_SKB_MIN_TRUESIZE	(2048 + sizeof(struct sk_buff))
+#define TCP_SKB_MIN_TRUESIZE	(2048 + SKB_DATA_ALIGN(sizeof(struct sk_buff)))
 
 #define SOCK_MIN_SNDBUF		(TCP_SKB_MIN_TRUESIZE * 2)
 #define SOCK_MIN_RCVBUF		 TCP_SKB_MIN_TRUESIZE
-- 
cgit v0.10.2


From 36b7bfe09b6deb71bf387852465245783c9a6208 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 3 Jul 2013 14:04:14 -0700
Subject: netem: fix possible NULL deref in netem_dequeue()

commit aec0a40a6f7884 ("netem: use rb tree to implement the time queue")
added a regression if a child qdisc is attached to netem, as we perform
a NULL dereference.

Fix this by adding a temporary variable to cache
netem_skb_cb(skb)->time_to_send.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index ed0082c..82f6016 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -554,10 +554,13 @@ deliver:
 	}
 	p = rb_first(&q->t_root);
 	if (p) {
+		psched_time_t time_to_send;
+
 		skb = netem_rb_to_skb(p);
 
 		/* if more time remaining? */
-		if (netem_skb_cb(skb)->time_to_send <= psched_get_time()) {
+		time_to_send = netem_skb_cb(skb)->time_to_send;
+		if (time_to_send <= psched_get_time()) {
 			rb_erase(p, &q->t_root);
 
 			sch->q.qlen--;
@@ -593,8 +596,7 @@ deliver:
 			if (skb)
 				goto deliver;
 		}
-		qdisc_watchdog_schedule(&q->watchdog,
-					netem_skb_cb(skb)->time_to_send);
+		qdisc_watchdog_schedule(&q->watchdog, time_to_send);
 	}
 
 	if (q->qdisc) {
-- 
cgit v0.10.2


From a1bdc45580fc19e968b32ad27cd7e476a4aa58f6 Mon Sep 17 00:00:00 2001
From: Lorenzo Colitti <lorenzo@google.com>
Date: Thu, 4 Jul 2013 00:52:49 +0900
Subject: net: ipv6: add missing lock in ping_v6_sendmsg

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 2b52046..10b9755 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -174,6 +174,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	if (hlimit < 0)
 		hlimit = ip6_dst_hoplimit(dst);
 
+	lock_sock(sk);
 	err = ip6_append_data(sk, ping_getfrag, &pfh, len,
 			      0, hlimit,
 			      np->tclass, NULL, &fl6, rt,
@@ -188,6 +189,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 						 (struct icmp6hdr *) &pfh.icmph,
 						 len);
 	}
+	release_sock(sk);
 
 	return err;
 }
-- 
cgit v0.10.2


From fbfe80c890a1dc521d0b629b870e32fcffff0da5 Mon Sep 17 00:00:00 2001
From: Lorenzo Colitti <lorenzo@google.com>
Date: Thu, 4 Jul 2013 00:12:40 +0900
Subject: net: ipv6: fix wrong ping_v6_sendmsg return value

ping_v6_sendmsg currently returns 0 on success. It should return
the number of bytes written instead.

Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 10b9755..18f19df 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -191,7 +191,10 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	}
 	release_sock(sk);
 
-	return err;
+	if (err)
+		return err;
+
+	return len;
 }
 
 #ifdef CONFIG_PROC_FS
-- 
cgit v0.10.2


From 3630d40067a21d4dfbadc6002bb469ce26ac5d52 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 3 Jul 2013 20:45:04 +0200
Subject: ipv6: rt6_check_neigh should successfully verify neigh if no NUD
 information are available

After the removal of rt->n we do not create a neighbour entry at route
insertion time (rt6_bind_neighbour is gone). As long as no neighbour is
created because of "useful traffic" we skip this routing entry because
rt6_check_neigh cannot pick up a valid neighbour (neigh == NULL) and
thus returns false.

This change was introduced by commit
887c95cc1da53f66a5890fdeab13414613010097 ("ipv6: Complete neighbour
entry removal from dst_entry.")

To quote RFC4191:
"If the host has no information about the router's reachability, then
the host assumes the router is reachable."

and also:
"A host MUST NOT probe a router's reachability in the absence of useful
traffic that the host would have sent to the router if it were reachable."

So, just assume the router is reachable and let's rt6_probe do the
rest. We don't need to create a neighbour on route insertion time.

If we don't compile with CONFIG_IPV6_ROUTER_PREF (RFC4191 support)
a neighbour is only valid if its nud_state is NUD_VALID. I did not find
any references that we should probe the router on route insertion time
via the other RFCs. So skip this route in that case.

v2:
a) use IS_ENABLED instead of #ifdefs (thanks to Sergei Shtylyov)

Reported-by: Pierre Emeriaud <petrus.lt@gmail.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 9ff0b78..bd5fd70 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -551,6 +551,8 @@ static inline bool rt6_check_neigh(struct rt6_info *rt)
 			ret = true;
 #endif
 		read_unlock(&neigh->lock);
+	} else if (IS_ENABLED(CONFIG_IPV6_ROUTER_PREF)) {
+		ret = true;
 	}
 	rcu_read_unlock_bh();
 
-- 
cgit v0.10.2


From c9324d1870f3a7d13297ae6b787c567606ab3c89 Mon Sep 17 00:00:00 2001
From: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Date: Thu, 4 Jul 2013 06:18:07 +0200
Subject: net:stmmac: fix memleak in the open method

This patch is to fix a memory leak in the open method, it reviews error
conditions freeing the resources previously allocated and not freed in
cased of DMA failure.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index f2d283d..f2ccb36 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1552,7 +1552,7 @@ static int stmmac_open(struct net_device *dev)
 		if (ret) {
 			pr_err("%s: Cannot attach to PHY (error: %d)\n",
 			       __func__, ret);
-			goto open_error;
+			goto phy_error;
 		}
 	}
 
@@ -1566,7 +1566,7 @@ static int stmmac_open(struct net_device *dev)
 	ret = stmmac_init_dma_engine(priv);
 	if (ret < 0) {
 		pr_err("%s: DMA initialization failed\n", __func__);
-		goto open_error;
+		goto init_error;
 	}
 
 	/* Copy the MAC addr into the HW  */
@@ -1585,7 +1585,7 @@ static int stmmac_open(struct net_device *dev)
 	if (unlikely(ret < 0)) {
 		pr_err("%s: ERROR: allocating the IRQ %d (error: %d)\n",
 		       __func__, dev->irq, ret);
-		goto open_error;
+		goto init_error;
 	}
 
 	/* Request the Wake IRQ in case of another line is used for WoL */
@@ -1595,7 +1595,7 @@ static int stmmac_open(struct net_device *dev)
 		if (unlikely(ret < 0)) {
 			pr_err("%s: ERROR: allocating the WoL IRQ %d (%d)\n",
 			       __func__, priv->wol_irq, ret);
-			goto open_error_wolirq;
+			goto wolirq_error;
 		}
 	}
 
@@ -1606,7 +1606,7 @@ static int stmmac_open(struct net_device *dev)
 		if (unlikely(ret < 0)) {
 			pr_err("%s: ERROR: allocating the LPI IRQ %d (%d)\n",
 			       __func__, priv->lpi_irq, ret);
-			goto open_error_lpiirq;
+			goto lpiirq_error;
 		}
 	}
 
@@ -1664,17 +1664,17 @@ static int stmmac_open(struct net_device *dev)
 
 	return 0;
 
-open_error_lpiirq:
+lpiirq_error:
 	if (priv->wol_irq != dev->irq)
 		free_irq(priv->wol_irq, dev);
-
-open_error_wolirq:
+wolirq_error:
 	free_irq(dev->irq, dev);
 
-open_error:
+init_error:
+	free_dma_desc_resources(priv);
 	if (priv->phydev)
 		phy_disconnect(priv->phydev);
-
+phy_error:
 	clk_disable_unprepare(priv->stmmac_clk);
 
 	return ret;
-- 
cgit v0.10.2


From d741434c3e0ae5592b72a0f4833a42b4be1b2fa1 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Date: Thu, 4 Jul 2013 10:35:35 +0100
Subject: dt:net:stmmac: Allocate platform data only if its NULL.

In some DT use-cases platform data might be already allocated and passed
via AUXDATA. These are the cases where machine level code populates few
callbacks in the platform data.

This patch adds check and reuses platform_data if its valid, before
allocating a new one.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 17bc782..adfb9a3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -92,8 +92,10 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 	if (IS_ERR(addr))
 		return PTR_ERR(addr);
 
+	plat_dat = pdev->dev.platform_data;
 	if (pdev->dev.of_node) {
-		plat_dat = devm_kzalloc(&pdev->dev,
+		if (!plat_dat)
+			plat_dat = devm_kzalloc(&pdev->dev,
 					sizeof(struct plat_stmmacenet_data),
 					GFP_KERNEL);
 		if (!plat_dat) {
@@ -106,8 +108,6 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
 			pr_err("%s: main dt probe failed", __func__);
 			return ret;
 		}
-	} else {
-		plat_dat = pdev->dev.platform_data;
 	}
 
 	/* Custom initialisation (if needed)*/
-- 
cgit v0.10.2


From 25c83b5c2e82560406d5265f42cd147f1eb441d0 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Date: Thu, 4 Jul 2013 10:35:41 +0100
Subject: dt:net:stmmac: Add support to dwmac version 3.610 and 3.710

This patch adds dt support to dwmac version 3.610 and 3.710 these
versions are integrated in STiH415 and STiH416 ARM A9 SOCs.
To support these IP version, some of the device tree properties are
extended.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index 060bbf0..e1ddfcc 100644
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -12,6 +12,10 @@ Required properties:
   property
 - phy-mode: String, operation mode of the PHY interface.
   Supported values are: "mii", "rmii", "gmii", "rgmii".
+- snps,phy-addr		phy address to connect to.
+- snps,pbl		Programmable Burst Length
+- snps,fixed-burst	Program the DMA to use the fixed burst mode
+- snps,mixed-burst	Program the DMA to use the mixed burst mode
 
 Optional properties:
 - mac-address: 6 bytes, mac address
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index adfb9a3..03de76c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -34,12 +34,20 @@ static int stmmac_probe_config_dt(struct platform_device *pdev,
 				  const char **mac)
 {
 	struct device_node *np = pdev->dev.of_node;
+	struct stmmac_dma_cfg *dma_cfg;
 
 	if (!np)
 		return -ENODEV;
 
 	*mac = of_get_mac_address(np);
 	plat->interface = of_get_phy_mode(np);
+
+	plat->bus_id = of_alias_get_id(np, "ethernet");
+	if (plat->bus_id < 0)
+		plat->bus_id = 0;
+
+	of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr);
+
 	plat->mdio_bus_data = devm_kzalloc(&pdev->dev,
 					   sizeof(struct stmmac_mdio_bus_data),
 					   GFP_KERNEL);
@@ -56,6 +64,22 @@ static int stmmac_probe_config_dt(struct platform_device *pdev,
 		plat->pmt = 1;
 	}
 
+	if (of_device_is_compatible(np, "snps,dwmac-3.610") ||
+		of_device_is_compatible(np, "snps,dwmac-3.710")) {
+		plat->enh_desc = 1;
+		plat->bugged_jumbo = 1;
+		plat->force_sf_dma_mode = 1;
+	}
+
+	dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg), GFP_KERNEL);
+	if (!dma_cfg)
+		return -ENOMEM;
+
+	plat->dma_cfg = dma_cfg;
+	of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl);
+	dma_cfg->fixed_burst = of_property_read_bool(np, "snps,fixed-burst");
+	dma_cfg->mixed_burst = of_property_read_bool(np, "snps,mixed-burst");
+
 	return 0;
 }
 #else
@@ -228,7 +252,9 @@ static const struct dev_pm_ops stmmac_pltfr_pm_ops;
 
 static const struct of_device_id stmmac_dt_ids[] = {
 	{ .compatible = "st,spear600-gmac"},
+	{ .compatible = "snps,dwmac-3.610"},
 	{ .compatible = "snps,dwmac-3.70a"},
+	{ .compatible = "snps,dwmac-3.710"},
 	{ .compatible = "snps,dwmac"},
 	{ /* sentinel */ }
 };
-- 
cgit v0.10.2


From 0e0764715d8116484d808f5b3985ca043080788e Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Date: Thu, 4 Jul 2013 10:35:48 +0100
Subject: dt:net:stmmac: Add dt specific phy reset callback support.

This patch adds phy reset callback support for stmmac driver via device
trees. It adds three new properties to gmac device tree bindings to
define the reset signal via gpio.

With this patch users can conveniently pass reset gpio number with pre,
pulse and post delay in micro secs via DTs.

 active low:
		_________		 ____________
	<pre-delay>	|<pulse-delay>	|<post-delay>
		 	|		|
		 	|_______________|

 active high:
 			 ________________
	<pre-delay>	|<pulse-delay>	|<post-delay>
			|		|
		________|		|___________

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
index e1ddfcc..261c563 100644
--- a/Documentation/devicetree/bindings/net/stmmac.txt
+++ b/Documentation/devicetree/bindings/net/stmmac.txt
@@ -13,6 +13,12 @@ Required properties:
 - phy-mode: String, operation mode of the PHY interface.
   Supported values are: "mii", "rmii", "gmii", "rgmii".
 - snps,phy-addr		phy address to connect to.
+- snps,reset-gpio 	gpio number for phy reset.
+- snps,reset-active-low boolean flag to indicate if phy reset is active low.
+- snps,reset-delays-us  is triplet of delays
+	The 1st cell is reset pre-delay in micro seconds.
+	The 2nd cell is reset pulse in micro seconds.
+	The 3rd cell is reset post-delay in micro seconds.
 - snps,pbl		Programmable Burst Length
 - snps,fixed-burst	Program the DMA to use the fixed burst mode
 - snps,mixed-burst	Program the DMA to use the mixed burst mode
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index cc15039..fe7bc99 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -27,6 +27,9 @@
 #include <linux/mii.h>
 #include <linux/phy.h>
 #include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+
 #include <asm/io.h>
 
 #include "stmmac.h"
@@ -131,10 +134,46 @@ static int stmmac_mdio_reset(struct mii_bus *bus)
 	struct net_device *ndev = bus->priv;
 	struct stmmac_priv *priv = netdev_priv(ndev);
 	unsigned int mii_address = priv->hw->mii.addr;
+	struct stmmac_mdio_bus_data *data = priv->plat->mdio_bus_data;
+
+#ifdef CONFIG_OF
+	if (priv->device->of_node) {
+		int reset_gpio, active_low;
+
+		if (data->reset_gpio < 0) {
+			struct device_node *np = priv->device->of_node;
+			if (!np)
+				return 0;
+
+			data->reset_gpio = of_get_named_gpio(np,
+						"snps,reset-gpio", 0);
+			if (data->reset_gpio < 0)
+				return 0;
+
+			data->active_low = of_property_read_bool(np,
+						"snps,reset-active-low");
+			of_property_read_u32_array(np,
+				"snps,reset-delays-us", data->delays, 3);
+		}
+
+		reset_gpio = data->reset_gpio;
+		active_low = data->active_low;
+
+		if (!gpio_request(reset_gpio, "mdio-reset")) {
+			gpio_direction_output(reset_gpio, active_low ? 1 : 0);
+			udelay(data->delays[0]);
+			gpio_set_value(reset_gpio, active_low ? 0 : 1);
+			udelay(data->delays[1]);
+			gpio_set_value(reset_gpio, active_low ? 1 : 0);
+			udelay(data->delays[2]);
+			gpio_free(reset_gpio);
+		}
+	}
+#endif
 
-	if (priv->plat->mdio_bus_data->phy_reset) {
+	if (data->phy_reset) {
 		pr_debug("stmmac_mdio_reset: calling phy_reset\n");
-		priv->plat->mdio_bus_data->phy_reset(priv->plat->bsp_priv);
+		data->phy_reset(priv->plat->bsp_priv);
 	}
 
 	/* This is a workaround for problems with the STE101P PHY.
@@ -172,6 +211,11 @@ int stmmac_mdio_register(struct net_device *ndev)
 	else
 		irqlist = priv->mii_irq;
 
+#ifdef CONFIG_OF
+	if (priv->device->of_node)
+		mdio_bus_data->reset_gpio = -1;
+#endif
+
 	new_bus->name = "stmmac";
 	new_bus->read = &stmmac_mdio_read;
 	new_bus->write = &stmmac_mdio_write;
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index c1b3ed3..9e495d31 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -80,6 +80,10 @@ struct stmmac_mdio_bus_data {
 	unsigned int phy_mask;
 	int *irqs;
 	int probed_phy_irq;
+#ifdef CONFIG_OF
+	int reset_gpio, active_low;
+	u32 delays[3];
+#endif
 };
 
 struct stmmac_dma_cfg {
-- 
cgit v0.10.2


From 86bd68bfd75941d4cf3b874468791c3e73eef23d Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 3 Jul 2013 17:00:34 +0200
Subject: sit: fix tunnel update via netlink

The device can stand in another netns, hence we need to do the lookup in netns
tunnel->net.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 85ff37b..a3437a4 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1426,9 +1426,9 @@ static int ipip6_newlink(struct net *src_net, struct net_device *dev,
 static int ipip6_changelink(struct net_device *dev, struct nlattr *tb[],
 			  struct nlattr *data[])
 {
-	struct ip_tunnel *t;
+	struct ip_tunnel *t = netdev_priv(dev);
 	struct ip_tunnel_parm p;
-	struct net *net = dev_net(dev);
+	struct net *net = t->net;
 	struct sit_net *sitn = net_generic(net, sit_net_id);
 #ifdef CONFIG_IPV6_SIT_6RD
 	struct ip_tunnel_6rd ip6rd;
-- 
cgit v0.10.2


From 734d4e159b283a4ae4d007b7e7a91d84398ccb92 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 4 Jul 2013 23:48:46 +0100
Subject: sfc: Fix memory leak when discarding scattered packets

Commit 2768935a4660 ('sfc: reuse pages to avoid DMA mapping/unmapping
costs') did not fully take account of DMA scattering which was
introduced immediately before.  If a received packet is invalid and
must be discarded, we only drop a reference to the first buffer's
page, but we need to drop a reference for each buffer the packet
used.

I think this bug was missed partly because efx_recycle_rx_buffers()
was not renamed and so no longer does what its name says.  It does not
change the state of buffers, but only prepares the underlying pages
for recycling.  Rename it accordingly.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 65646cd..6af9cfd 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -282,9 +282,9 @@ static void efx_fini_rx_buffer(struct efx_rx_queue *rx_queue,
 }
 
 /* Recycle the pages that are used by buffers that have just been received. */
-static void efx_recycle_rx_buffers(struct efx_channel *channel,
-				   struct efx_rx_buffer *rx_buf,
-				   unsigned int n_frags)
+static void efx_recycle_rx_pages(struct efx_channel *channel,
+				 struct efx_rx_buffer *rx_buf,
+				 unsigned int n_frags)
 {
 	struct efx_rx_queue *rx_queue = efx_channel_get_rx_queue(channel);
 
@@ -294,6 +294,20 @@ static void efx_recycle_rx_buffers(struct efx_channel *channel,
 	} while (--n_frags);
 }
 
+static void efx_discard_rx_packet(struct efx_channel *channel,
+				  struct efx_rx_buffer *rx_buf,
+				  unsigned int n_frags)
+{
+	struct efx_rx_queue *rx_queue = efx_channel_get_rx_queue(channel);
+
+	efx_recycle_rx_pages(channel, rx_buf, n_frags);
+
+	do {
+		efx_free_rx_buffer(rx_buf);
+		rx_buf = efx_rx_buf_next(rx_queue, rx_buf);
+	} while (--n_frags);
+}
+
 /**
  * efx_fast_push_rx_descriptors - push new RX descriptors quickly
  * @rx_queue:		RX descriptor queue
@@ -533,8 +547,7 @@ void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
 	 */
 	if (unlikely(rx_buf->flags & EFX_RX_PKT_DISCARD)) {
 		efx_rx_flush_packet(channel);
-		put_page(rx_buf->page);
-		efx_recycle_rx_buffers(channel, rx_buf, n_frags);
+		efx_discard_rx_packet(channel, rx_buf, n_frags);
 		return;
 	}
 
@@ -570,9 +583,9 @@ void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
 		efx_sync_rx_buffer(efx, rx_buf, rx_buf->len);
 	}
 
-	/* All fragments have been DMA-synced, so recycle buffers and pages. */
+	/* All fragments have been DMA-synced, so recycle pages. */
 	rx_buf = efx_rx_buffer(rx_queue, index);
-	efx_recycle_rx_buffers(channel, rx_buf, n_frags);
+	efx_recycle_rx_pages(channel, rx_buf, n_frags);
 
 	/* Pipeline receives so that we give time for packet headers to be
 	 * prefetched into cache.
-- 
cgit v0.10.2


From c7e8e8a8f7a70b343ca1e0f90a31e35ab2d16de1 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Fri, 5 Jul 2013 19:36:17 +0800
Subject: bridge: fix some kernel warning in multicast timer

Several people reported the warning: "kernel BUG at kernel/timer.c:729!"
and the stack trace is:

	#7 [ffff880214d25c10] mod_timer+501 at ffffffff8106d905
	#8 [ffff880214d25c50] br_multicast_del_pg.isra.20+261 at ffffffffa0731d25 [bridge]
	#9 [ffff880214d25c80] br_multicast_disable_port+88 at ffffffffa0732948 [bridge]
	#10 [ffff880214d25cb0] br_stp_disable_port+154 at ffffffffa072bcca [bridge]
	#11 [ffff880214d25ce8] br_device_event+520 at ffffffffa072a4e8 [bridge]
	#12 [ffff880214d25d18] notifier_call_chain+76 at ffffffff8164aafc
	#13 [ffff880214d25d50] raw_notifier_call_chain+22 at ffffffff810858f6
	#14 [ffff880214d25d60] call_netdevice_notifiers+45 at ffffffff81536aad
	#15 [ffff880214d25d80] dev_close_many+183 at ffffffff81536d17
	#16 [ffff880214d25dc0] rollback_registered_many+168 at ffffffff81537f68
	#17 [ffff880214d25de8] rollback_registered+49 at ffffffff81538101
	#18 [ffff880214d25e10] unregister_netdevice_queue+72 at ffffffff815390d8
	#19 [ffff880214d25e30] __tun_detach+272 at ffffffffa074c2f0 [tun]
	#20 [ffff880214d25e88] tun_chr_close+45 at ffffffffa074c4bd [tun]
	#21 [ffff880214d25ea8] __fput+225 at ffffffff8119b1f1
	#22 [ffff880214d25ef0] ____fput+14 at ffffffff8119b3fe
	#23 [ffff880214d25f00] task_work_run+159 at ffffffff8107cf7f
	#24 [ffff880214d25f30] do_notify_resume+97 at ffffffff810139e1
	#25 [ffff880214d25f50] int_signal+18 at ffffffff8164f292

this is due to I forgot to check if mp->timer is armed in
br_multicast_del_pg(). This bug is introduced by
commit 9f00b2e7cf241fa389733d41b6 (bridge: only expire the mdb entry
when query is received).

Same for __br_mdb_del().

Tested-by: poma <pomidorabelisima@gmail.com>
Reported-by: LiYonghua <809674045@qq.com>
Reported-by: Robert Hancock <hancockrwd@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index 19942e3..0daae3e 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -447,7 +447,7 @@ static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry)
 		call_rcu_bh(&p->rcu, br_multicast_free_pg);
 		err = 0;
 
-		if (!mp->ports && !mp->mglist &&
+		if (!mp->ports && !mp->mglist && mp->timer_armed &&
 		    netif_running(br->dev))
 			mod_timer(&mp->timer, jiffies);
 		break;
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 81befac..69af490 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -270,7 +270,7 @@ static void br_multicast_del_pg(struct net_bridge *br,
 		del_timer(&p->timer);
 		call_rcu_bh(&p->rcu, br_multicast_free_pg);
 
-		if (!mp->ports && !mp->mglist &&
+		if (!mp->ports && !mp->mglist && mp->timer_armed &&
 		    netif_running(br->dev))
 			mod_timer(&mp->timer, jiffies);
 
-- 
cgit v0.10.2


From cbf55001b2ddb814329735641be5d29b08c82b08 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Mon, 8 Jul 2013 16:20:34 +0300
Subject: net: rename low latency sockets functions to busy poll

Rename functions in include/net/ll_poll.h to busy wait.
Clarify documentation about expected power use increase.
Rename POLL_LL to POLL_BUSY_LOOP.
Add need_resched() testing to poll/select busy loops.

Note, that in select and poll can_busy_poll is dynamic and is
updated continuously to reflect the existence of supported
sockets with valid queue information.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt
index e658bbf..7323b88 100644
--- a/Documentation/sysctl/net.txt
+++ b/Documentation/sysctl/net.txt
@@ -53,22 +53,24 @@ Default: 64
 low_latency_read
 ----------------
 Low latency busy poll timeout for socket reads. (needs CONFIG_NET_LL_RX_POLL)
-Approximate time in us to spin waiting for packets on the device queue.
+Approximate time in us to busy loop waiting for packets on the device queue.
 This sets the default value of the SO_LL socket option.
-Can be set or overridden per socket by setting socket option SO_LL.
-Recommended value is 50. May increase power usage.
+Can be set or overridden per socket by setting socket option SO_LL, which is
+the preferred method of enabling.
+If you need to enable the feature globally via sysctl, a value of 50 is recommended.
+Will increase power usage.
 Default: 0 (off)
 
 low_latency_poll
 ----------------
 Low latency busy poll timeout for poll and select. (needs CONFIG_NET_LL_RX_POLL)
-Approximate time in us to spin waiting for packets on the device queue.
+Approximate time in us to busy loop waiting for events.
 Recommended value depends on the number of sockets you poll on.
 For several sockets 50, for several hundreds 100.
 For more than that you probably want to use epoll.
 Note that only sockets with SO_LL set will be busy polled, so you want to either
 selectively set SO_LL on those sockets or set sysctl.net.low_latency_read globally.
-May increase power usage.
+Will increase power usage.
 Default: 0 (off)
 
 rmem_default
diff --git a/fs/select.c b/fs/select.c
index f28a585..25cac5f 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -402,9 +402,9 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 	poll_table *wait;
 	int retval, i, timed_out = 0;
 	unsigned long slack = 0;
-	unsigned int ll_flag = ll_get_flag();
-	u64 ll_start = ll_start_time(ll_flag);
-	u64 ll_time = ll_run_time();
+	unsigned int busy_flag = net_busy_loop_on() ? POLL_BUSY_LOOP : 0;
+	u64 busy_start = busy_loop_start_time(busy_flag);
+	u64 busy_end = busy_loop_end_time();
 
 	rcu_read_lock();
 	retval = max_select_fd(n, fds);
@@ -427,7 +427,7 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 	retval = 0;
 	for (;;) {
 		unsigned long *rinp, *routp, *rexp, *inp, *outp, *exp;
-		bool can_ll = false;
+		bool can_busy_loop = false;
 
 		inp = fds->in; outp = fds->out; exp = fds->ex;
 		rinp = fds->res_in; routp = fds->res_out; rexp = fds->res_ex;
@@ -456,7 +456,7 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 					mask = DEFAULT_POLLMASK;
 					if (f_op && f_op->poll) {
 						wait_key_set(wait, in, out,
-							     bit, ll_flag);
+							     bit, busy_flag);
 						mask = (*f_op->poll)(f.file, wait);
 					}
 					fdput(f);
@@ -475,11 +475,18 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 						retval++;
 						wait->_qproc = NULL;
 					}
-					if (mask & POLL_LL)
-						can_ll = true;
 					/* got something, stop busy polling */
-					if (retval)
-						ll_flag = 0;
+					if (retval) {
+						can_busy_loop = false;
+						busy_flag = 0;
+
+					/*
+					 * only remember a returned
+					 * POLL_BUSY_LOOP if we asked for it
+					 */
+					} else if (busy_flag & mask)
+						can_busy_loop = true;
+
 				}
 			}
 			if (res_in)
@@ -498,8 +505,9 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 			break;
 		}
 
-		/* only if on, have sockets with POLL_LL and not out of time */
-		if (ll_flag && can_ll && can_poll_ll(ll_start, ll_time))
+		/* only if found POLL_BUSY_LOOP sockets && not out of time */
+		if (!need_resched() && can_busy_loop &&
+		    busy_loop_range(busy_start, busy_end))
 			continue;
 
 		/*
@@ -734,7 +742,8 @@ struct poll_list {
  * if pwait->_qproc is non-NULL.
  */
 static inline unsigned int do_pollfd(struct pollfd *pollfd, poll_table *pwait,
-				     bool *can_ll, unsigned int ll_flag)
+				     bool *can_busy_poll,
+				     unsigned int busy_flag)
 {
 	unsigned int mask;
 	int fd;
@@ -748,10 +757,10 @@ static inline unsigned int do_pollfd(struct pollfd *pollfd, poll_table *pwait,
 			mask = DEFAULT_POLLMASK;
 			if (f.file->f_op && f.file->f_op->poll) {
 				pwait->_key = pollfd->events|POLLERR|POLLHUP;
-				pwait->_key |= ll_flag;
+				pwait->_key |= busy_flag;
 				mask = f.file->f_op->poll(f.file, pwait);
-				if (mask & POLL_LL)
-					*can_ll = true;
+				if (mask & busy_flag)
+					*can_busy_poll = true;
 			}
 			/* Mask out unneeded events. */
 			mask &= pollfd->events | POLLERR | POLLHUP;
@@ -770,9 +779,10 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 	ktime_t expire, *to = NULL;
 	int timed_out = 0, count = 0;
 	unsigned long slack = 0;
-	unsigned int ll_flag = ll_get_flag();
-	u64 ll_start = ll_start_time(ll_flag);
-	u64 ll_time = ll_run_time();
+	unsigned int busy_flag = net_busy_loop_on() ? POLL_BUSY_LOOP : 0;
+	u64 busy_start = busy_loop_start_time(busy_flag);
+	u64 busy_end = busy_loop_end_time();
+
 
 	/* Optimise the no-wait case */
 	if (end_time && !end_time->tv_sec && !end_time->tv_nsec) {
@@ -785,7 +795,7 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 
 	for (;;) {
 		struct poll_list *walk;
-		bool can_ll = false;
+		bool can_busy_loop = false;
 
 		for (walk = list; walk != NULL; walk = walk->next) {
 			struct pollfd * pfd, * pfd_end;
@@ -800,10 +810,13 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 				 * this. They'll get immediately deregistered
 				 * when we break out and return.
 				 */
-				if (do_pollfd(pfd, pt, &can_ll, ll_flag)) {
+				if (do_pollfd(pfd, pt, &can_busy_loop,
+					      busy_flag)) {
 					count++;
 					pt->_qproc = NULL;
-					ll_flag = 0;
+					/* found something, stop busy polling */
+					busy_flag = 0;
+					can_busy_loop = false;
 				}
 			}
 		}
@@ -820,8 +833,9 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 		if (count || timed_out)
 			break;
 
-		/* only if on, have sockets with POLL_LL and not out of time */
-		if (ll_flag && can_ll && can_poll_ll(ll_start, ll_time))
+		/* only if found POLL_BUSY_LOOP sockets && not out of time */
+		if (!need_resched() && can_busy_loop &&
+		    busy_loop_range(busy_start, busy_end))
 			continue;
 
 		/*
diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index 0d620ba..f14dd88 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -37,9 +37,9 @@ extern unsigned int sysctl_net_ll_poll __read_mostly;
 #define LL_FLUSH_FAILED		-1
 #define LL_FLUSH_BUSY		-2
 
-static inline unsigned int ll_get_flag(void)
+static inline bool net_busy_loop_on(void)
 {
-	return sysctl_net_ll_poll ? POLL_LL : 0;
+	return sysctl_net_ll_poll;
 }
 
 /* a wrapper to make debug_smp_processor_id() happy
@@ -47,7 +47,7 @@ static inline unsigned int ll_get_flag(void)
  * we only care that the average is bounded
  */
 #ifdef CONFIG_DEBUG_PREEMPT
-static inline u64 ll_sched_clock(void)
+static inline u64 busy_loop_sched_clock(void)
 {
 	u64 rc;
 
@@ -58,7 +58,7 @@ static inline u64 ll_sched_clock(void)
 	return rc;
 }
 #else /* CONFIG_DEBUG_PREEMPT */
-static inline u64 ll_sched_clock(void)
+static inline u64 busy_loop_sched_clock(void)
 {
 	return sched_clock();
 }
@@ -67,7 +67,7 @@ static inline u64 ll_sched_clock(void)
 /* we don't mind a ~2.5% imprecision so <<10 instead of *1000
  * sk->sk_ll_usec is a u_int so this can't overflow
  */
-static inline u64 ll_sk_run_time(struct sock *sk)
+static inline u64 sk_busy_loop_end_time(struct sock *sk)
 {
 	return (u64)ACCESS_ONCE(sk->sk_ll_usec) << 10;
 }
@@ -75,27 +75,29 @@ static inline u64 ll_sk_run_time(struct sock *sk)
 /* in poll/select we use the global sysctl_net_ll_poll value
  * only call sched_clock() if enabled
  */
-static inline u64 ll_run_time(void)
+static inline u64 busy_loop_end_time(void)
 {
 	return (u64)ACCESS_ONCE(sysctl_net_ll_poll) << 10;
 }
 
-/* if flag is not set we don't need to know the time */
-static inline u64 ll_start_time(unsigned int flag)
+/* if flag is not set we don't need to know the time
+ * so we want to avoid a potentially expensive sched_clock()
+ */
+static inline u64 busy_loop_start_time(unsigned int flag)
 {
-	return flag ? ll_sched_clock() : 0;
+	return flag ? busy_loop_sched_clock() : 0;
 }
 
-static inline bool sk_valid_ll(struct sock *sk)
+static inline bool sk_can_busy_loop(struct sock *sk)
 {
 	return sk->sk_ll_usec && sk->sk_napi_id &&
 	       !need_resched() && !signal_pending(current);
 }
 
 /* careful! time_in_range64 will evaluate now twice */
-static inline bool can_poll_ll(u64 start_time, u64 run_time)
+static inline bool busy_loop_range(u64 start_time, u64 run_time)
 {
-	u64 now = ll_sched_clock();
+	u64 now = busy_loop_sched_clock();
 
 	return time_in_range64(now, start_time, start_time + run_time);
 }
@@ -103,10 +105,10 @@ static inline bool can_poll_ll(u64 start_time, u64 run_time)
 /* when used in sock_poll() nonblock is known at compile time to be true
  * so the loop and end_time will be optimized out
  */
-static inline bool sk_poll_ll(struct sock *sk, int nonblock)
+static inline bool sk_busy_loop(struct sock *sk, int nonblock)
 {
-	u64 start_time = ll_start_time(!nonblock);
-	u64 run_time = ll_sk_run_time(sk);
+	u64 start_time = busy_loop_start_time(!nonblock);
+	u64 end_time = sk_busy_loop_end_time(sk);
 	const struct net_device_ops *ops;
 	struct napi_struct *napi;
 	int rc = false;
@@ -137,7 +139,7 @@ static inline bool sk_poll_ll(struct sock *sk, int nonblock)
 					 LINUX_MIB_LOWLATENCYRXPACKETS, rc);
 
 	} while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) &&
-		 can_poll_ll(start_time, run_time));
+		 busy_loop_range(start_time, end_time));
 
 	rc = !skb_queue_empty(&sk->sk_receive_queue);
 out:
@@ -158,27 +160,27 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 }
 
 #else /* CONFIG_NET_LL_RX_POLL */
-static inline unsigned long ll_get_flag(void)
+static inline unsigned long net_busy_loop_on(void)
 {
 	return 0;
 }
 
-static inline u64 ll_start_time(unsigned int flag)
+static inline u64 busy_loop_start_time(unsigned int flag)
 {
 	return 0;
 }
 
-static inline u64 ll_run_time(void)
+static inline u64 busy_loop_end_time(void)
 {
 	return 0;
 }
 
-static inline bool sk_valid_ll(struct sock *sk)
+static inline bool sk_can_busy_loop(struct sock *sk)
 {
 	return false;
 }
 
-static inline bool sk_poll_ll(struct sock *sk, int nonblock)
+static inline bool sk_busy_poll(struct sock *sk, int nonblock)
 {
 	return false;
 }
@@ -191,7 +193,7 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 {
 }
 
-static inline bool can_poll_ll(u64 start_time, u64 run_time)
+static inline bool busy_loop_range(u64 start_time, u64 run_time)
 {
 	return false;
 }
diff --git a/include/uapi/asm-generic/poll.h b/include/uapi/asm-generic/poll.h
index 4aee586..a969498 100644
--- a/include/uapi/asm-generic/poll.h
+++ b/include/uapi/asm-generic/poll.h
@@ -30,7 +30,7 @@
 
 #define POLLFREE	0x4000	/* currently only for epoll */
 
-#define POLL_LL		0x8000
+#define POLL_BUSY_LOOP	0x8000
 
 struct pollfd {
 	int fd;
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 9cbaba9..6e9ab31 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -208,7 +208,8 @@ struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned int flags,
 		}
 		spin_unlock_irqrestore(&queue->lock, cpu_flags);
 
-		if (sk_valid_ll(sk) && sk_poll_ll(sk, flags & MSG_DONTWAIT))
+		if (sk_can_busy_loop(sk) &&
+		    sk_busy_loop(sk, flags & MSG_DONTWAIT))
 			continue;
 
 		/* User doesn't want to wait */
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 46ed9af..15cbfa9 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1554,9 +1554,9 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	struct sk_buff *skb;
 	u32 urg_hole = 0;
 
-	if (sk_valid_ll(sk) && skb_queue_empty(&sk->sk_receive_queue)
-	    && (sk->sk_state == TCP_ESTABLISHED))
-		sk_poll_ll(sk, nonblock);
+	if (sk_can_busy_loop(sk) && skb_queue_empty(&sk->sk_receive_queue) &&
+	    (sk->sk_state == TCP_ESTABLISHED))
+		sk_busy_loop(sk, nonblock);
 
 	lock_sock(sk);
 
diff --git a/net/socket.c b/net/socket.c
index 4da14cb..45afa64 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1148,7 +1148,7 @@ EXPORT_SYMBOL(sock_create_lite);
 /* No kernel lock held - perfect */
 static unsigned int sock_poll(struct file *file, poll_table *wait)
 {
-	unsigned int ll_flag = 0;
+	unsigned int busy_flag = 0;
 	struct socket *sock;
 
 	/*
@@ -1156,16 +1156,16 @@ static unsigned int sock_poll(struct file *file, poll_table *wait)
 	 */
 	sock = file->private_data;
 
-	if (sk_valid_ll(sock->sk)) {
+	if (sk_can_busy_loop(sock->sk)) {
 		/* this socket can poll_ll so tell the system call */
-		ll_flag = POLL_LL;
+		busy_flag = POLL_BUSY_LOOP;
 
 		/* once, only if requested by syscall */
-		if (wait && (wait->_key & POLL_LL))
-			sk_poll_ll(sock->sk, 1);
+		if (wait && (wait->_key & POLL_BUSY_LOOP))
+			sk_busy_loop(sock->sk, 1);
 	}
 
-	return ll_flag | sock->ops->poll(file, sock, wait);
+	return busy_flag | sock->ops->poll(file, sock, wait);
 }
 
 static int sock_mmap(struct file *file, struct vm_area_struct *vma)
-- 
cgit v0.10.2


From 76b1e9b9813e412bde7446525f6c299803713545 Mon Sep 17 00:00:00 2001
From: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Date: Tue, 9 Jul 2013 13:09:21 +0300
Subject: net/fs: change busy poll time accounting

Suggested by Linus:
Changed time accounting for busy-poll:
- Make it microsecond based.
- Use unsigned longs.
- Revert back to use time_after instead of time_in_range.
Reorder poll/select busy loop conditions:
- Clear busy_flag after one time we can't busy-poll.
- Only init busy_end if we actually are going to busy-poll.
Added one more missing need_resched() test.

Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/fs/select.c b/fs/select.c
index 25cac5f..50a804b 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -403,8 +403,7 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 	int retval, i, timed_out = 0;
 	unsigned long slack = 0;
 	unsigned int busy_flag = net_busy_loop_on() ? POLL_BUSY_LOOP : 0;
-	u64 busy_start = busy_loop_start_time(busy_flag);
-	u64 busy_end = busy_loop_end_time();
+	unsigned long busy_end = 0;
 
 	rcu_read_lock();
 	retval = max_select_fd(n, fds);
@@ -506,9 +505,15 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 		}
 
 		/* only if found POLL_BUSY_LOOP sockets && not out of time */
-		if (!need_resched() && can_busy_loop &&
-		    busy_loop_range(busy_start, busy_end))
-			continue;
+		if (can_busy_loop && !need_resched()) {
+			if (!busy_end) {
+				busy_end = busy_loop_end_time();
+				continue;
+			}
+			if (!busy_loop_timeout(busy_end))
+				continue;
+		}
+		busy_flag = 0;
 
 		/*
 		 * If this is the first loop and we have a timeout
@@ -780,9 +785,7 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 	int timed_out = 0, count = 0;
 	unsigned long slack = 0;
 	unsigned int busy_flag = net_busy_loop_on() ? POLL_BUSY_LOOP : 0;
-	u64 busy_start = busy_loop_start_time(busy_flag);
-	u64 busy_end = busy_loop_end_time();
-
+	unsigned long busy_end = 0;
 
 	/* Optimise the no-wait case */
 	if (end_time && !end_time->tv_sec && !end_time->tv_nsec) {
@@ -834,9 +837,15 @@ static int do_poll(unsigned int nfds,  struct poll_list *list,
 			break;
 
 		/* only if found POLL_BUSY_LOOP sockets && not out of time */
-		if (!need_resched() && can_busy_loop &&
-		    busy_loop_range(busy_start, busy_end))
-			continue;
+		if (can_busy_loop && !need_resched()) {
+			if (!busy_end) {
+				busy_end = busy_loop_end_time();
+				continue;
+			}
+			if (!busy_loop_timeout(busy_end))
+				continue;
+		}
+		busy_flag = 0;
 
 		/*
 		 * If this is the first loop and we have a timeout
diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h
index f14dd88..76f0340 100644
--- a/include/net/ll_poll.h
+++ b/include/net/ll_poll.h
@@ -47,7 +47,7 @@ static inline bool net_busy_loop_on(void)
  * we only care that the average is bounded
  */
 #ifdef CONFIG_DEBUG_PREEMPT
-static inline u64 busy_loop_sched_clock(void)
+static inline u64 busy_loop_us_clock(void)
 {
 	u64 rc;
 
@@ -55,37 +55,24 @@ static inline u64 busy_loop_sched_clock(void)
 	rc = sched_clock();
 	preempt_enable_no_resched_notrace();
 
-	return rc;
+	return rc >> 10;
 }
 #else /* CONFIG_DEBUG_PREEMPT */
-static inline u64 busy_loop_sched_clock(void)
+static inline u64 busy_loop_us_clock(void)
 {
-	return sched_clock();
+	return sched_clock() >> 10;
 }
 #endif /* CONFIG_DEBUG_PREEMPT */
 
-/* we don't mind a ~2.5% imprecision so <<10 instead of *1000
- * sk->sk_ll_usec is a u_int so this can't overflow
- */
-static inline u64 sk_busy_loop_end_time(struct sock *sk)
+static inline unsigned long sk_busy_loop_end_time(struct sock *sk)
 {
-	return (u64)ACCESS_ONCE(sk->sk_ll_usec) << 10;
+	return busy_loop_us_clock() + ACCESS_ONCE(sk->sk_ll_usec);
 }
 
-/* in poll/select we use the global sysctl_net_ll_poll value
- * only call sched_clock() if enabled
- */
-static inline u64 busy_loop_end_time(void)
-{
-	return (u64)ACCESS_ONCE(sysctl_net_ll_poll) << 10;
-}
-
-/* if flag is not set we don't need to know the time
- * so we want to avoid a potentially expensive sched_clock()
- */
-static inline u64 busy_loop_start_time(unsigned int flag)
+/* in poll/select we use the global sysctl_net_ll_poll value */
+static inline unsigned long busy_loop_end_time(void)
 {
-	return flag ? busy_loop_sched_clock() : 0;
+	return busy_loop_us_clock() + ACCESS_ONCE(sysctl_net_ll_poll);
 }
 
 static inline bool sk_can_busy_loop(struct sock *sk)
@@ -94,12 +81,12 @@ static inline bool sk_can_busy_loop(struct sock *sk)
 	       !need_resched() && !signal_pending(current);
 }
 
-/* careful! time_in_range64 will evaluate now twice */
-static inline bool busy_loop_range(u64 start_time, u64 run_time)
+
+static inline bool busy_loop_timeout(unsigned long end_time)
 {
-	u64 now = busy_loop_sched_clock();
+	unsigned long now = busy_loop_us_clock();
 
-	return time_in_range64(now, start_time, start_time + run_time);
+	return time_after(now, end_time);
 }
 
 /* when used in sock_poll() nonblock is known at compile time to be true
@@ -107,8 +94,7 @@ static inline bool busy_loop_range(u64 start_time, u64 run_time)
  */
 static inline bool sk_busy_loop(struct sock *sk, int nonblock)
 {
-	u64 start_time = busy_loop_start_time(!nonblock);
-	u64 end_time = sk_busy_loop_end_time(sk);
+	unsigned long end_time = !nonblock ? sk_busy_loop_end_time(sk) : 0;
 	const struct net_device_ops *ops;
 	struct napi_struct *napi;
 	int rc = false;
@@ -139,7 +125,7 @@ static inline bool sk_busy_loop(struct sock *sk, int nonblock)
 					 LINUX_MIB_LOWLATENCYRXPACKETS, rc);
 
 	} while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) &&
-		 busy_loop_range(start_time, end_time));
+		 !need_resched() && !busy_loop_timeout(end_time));
 
 	rc = !skb_queue_empty(&sk->sk_receive_queue);
 out:
@@ -165,12 +151,7 @@ static inline unsigned long net_busy_loop_on(void)
 	return 0;
 }
 
-static inline u64 busy_loop_start_time(unsigned int flag)
-{
-	return 0;
-}
-
-static inline u64 busy_loop_end_time(void)
+static inline unsigned long busy_loop_end_time(void)
 {
 	return 0;
 }
@@ -193,9 +174,9 @@ static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb)
 {
 }
 
-static inline bool busy_loop_range(u64 start_time, u64 run_time)
+static inline bool busy_loop_timeout(unsigned long end_time)
 {
-	return false;
+	return true;
 }
 
 #endif /* CONFIG_NET_LL_RX_POLL */
-- 
cgit v0.10.2


From b78ba72cda78314c11ac8f47617240bc8d0e89da Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 9 Jul 2013 10:22:31 +0200
Subject: Documentation: Fix references to defunct linux-net@vger.kernel.org

linux-net@vger.kernel.org was replaced by netdev@oss.sgi.com was replaced
by netdev@vger.kernel.org.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/networking/arcnet.txt b/Documentation/networking/arcnet.txt
index 9ff5795..aff97f4 100644
--- a/Documentation/networking/arcnet.txt
+++ b/Documentation/networking/arcnet.txt
@@ -70,9 +70,10 @@ list, mail to linux-arcnet@tichy.ch.uj.edu.pl.
 There are archives of the mailing list at:
 	http://epistolary.org/mailman/listinfo.cgi/arcnet
 
-The people on linux-net@vger.kernel.org have also been known to be very
-helpful, especially when we're talking about ALPHA Linux kernels that may or
-may not work right in the first place.
+The people on linux-net@vger.kernel.org (now defunct, replaced by
+netdev@vger.kernel.org) have also been known to be very helpful, especially
+when we're talking about ALPHA Linux kernels that may or may not work right
+in the first place.
 
 
 Other Drivers and Info
diff --git a/Documentation/networking/vortex.txt b/Documentation/networking/vortex.txt
index b4038ff..9a8041d 100644
--- a/Documentation/networking/vortex.txt
+++ b/Documentation/networking/vortex.txt
@@ -359,7 +359,7 @@ steps you should take:
 - OK, it's a driver problem.
 
    You need to generate a report.  Typically this is an email to the
-   maintainer and/or linux-net@vger.kernel.org.  The maintainer's
+   maintainer and/or netdev@vger.kernel.org.  The maintainer's
    email address will be in the driver source or in the MAINTAINERS file.
 
 - The contents of your report will vary a lot depending upon the
-- 
cgit v0.10.2


From 01276ed2424eb78c95461545410923d5da154d31 Mon Sep 17 00:00:00 2001
From: Jongsung Kim <neidhard.kim@lge.com>
Date: Tue, 9 Jul 2013 17:36:00 +0900
Subject: net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit

Signed-off-by: Jongsung Kim <neidhard.kim@lge.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index f7e21f2..e866608 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -1292,7 +1292,7 @@ static void macb_configure_dma(struct macb *bp)
 static void macb_configure_caps(struct macb *bp)
 {
 	if (macb_is_gem(bp)) {
-		if (GEM_BF(IRQCOR, gem_readl(bp, DCFG1)) == 0)
+		if (GEM_BFEXT(IRQCOR, gem_readl(bp, DCFG1)) == 0)
 			bp->caps |= MACB_CAPS_ISR_CLEAR_ON_WRITE;
 	}
 }
-- 
cgit v0.10.2


From cc229884d3f77ec3b1240e467e0236c3e0647c0c Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 9 Jul 2013 13:19:18 +0300
Subject: virtio: support unlocked queue poll

This adds a way to check ring empty state after enable_cb outside any
locks. Will be used by virtio_net.

Note: there's room for more optimization: caller is likely to have a
memory barrier already, which means we might be able to get rid of a
barrier here.  Deferring this optimization until we do some
benchmarking.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 5217baf..37d58f8 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -607,19 +607,21 @@ void virtqueue_disable_cb(struct virtqueue *_vq)
 EXPORT_SYMBOL_GPL(virtqueue_disable_cb);
 
 /**
- * virtqueue_enable_cb - restart callbacks after disable_cb.
+ * virtqueue_enable_cb_prepare - restart callbacks after disable_cb
  * @vq: the struct virtqueue we're talking about.
  *
- * This re-enables callbacks; it returns "false" if there are pending
- * buffers in the queue, to detect a possible race between the driver
- * checking for more work, and enabling callbacks.
+ * This re-enables callbacks; it returns current queue state
+ * in an opaque unsigned value. This value should be later tested by
+ * virtqueue_poll, to detect a possible race between the driver checking for
+ * more work, and enabling callbacks.
  *
  * Caller must ensure we don't call this with other virtqueue
  * operations at the same time (except where noted).
  */
-bool virtqueue_enable_cb(struct virtqueue *_vq)
+unsigned virtqueue_enable_cb_prepare(struct virtqueue *_vq)
 {
 	struct vring_virtqueue *vq = to_vvq(_vq);
+	u16 last_used_idx;
 
 	START_USE(vq);
 
@@ -629,15 +631,45 @@ bool virtqueue_enable_cb(struct virtqueue *_vq)
 	 * either clear the flags bit or point the event index at the next
 	 * entry. Always do both to keep code simple. */
 	vq->vring.avail->flags &= ~VRING_AVAIL_F_NO_INTERRUPT;
-	vring_used_event(&vq->vring) = vq->last_used_idx;
+	vring_used_event(&vq->vring) = last_used_idx = vq->last_used_idx;
+	END_USE(vq);
+	return last_used_idx;
+}
+EXPORT_SYMBOL_GPL(virtqueue_enable_cb_prepare);
+
+/**
+ * virtqueue_poll - query pending used buffers
+ * @vq: the struct virtqueue we're talking about.
+ * @last_used_idx: virtqueue state (from call to virtqueue_enable_cb_prepare).
+ *
+ * Returns "true" if there are pending used buffers in the queue.
+ *
+ * This does not need to be serialized.
+ */
+bool virtqueue_poll(struct virtqueue *_vq, unsigned last_used_idx)
+{
+	struct vring_virtqueue *vq = to_vvq(_vq);
+
 	virtio_mb(vq->weak_barriers);
-	if (unlikely(more_used(vq))) {
-		END_USE(vq);
-		return false;
-	}
+	return (u16)last_used_idx != vq->vring.used->idx;
+}
+EXPORT_SYMBOL_GPL(virtqueue_poll);
 
-	END_USE(vq);
-	return true;
+/**
+ * virtqueue_enable_cb - restart callbacks after disable_cb.
+ * @vq: the struct virtqueue we're talking about.
+ *
+ * This re-enables callbacks; it returns "false" if there are pending
+ * buffers in the queue, to detect a possible race between the driver
+ * checking for more work, and enabling callbacks.
+ *
+ * Caller must ensure we don't call this with other virtqueue
+ * operations at the same time (except where noted).
+ */
+bool virtqueue_enable_cb(struct virtqueue *_vq)
+{
+	unsigned last_used_idx = virtqueue_enable_cb_prepare(_vq);
+	return !virtqueue_poll(_vq, last_used_idx);
 }
 EXPORT_SYMBOL_GPL(virtqueue_enable_cb);
 
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 9ff8645..72398ee 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -70,6 +70,10 @@ void virtqueue_disable_cb(struct virtqueue *vq);
 
 bool virtqueue_enable_cb(struct virtqueue *vq);
 
+unsigned virtqueue_enable_cb_prepare(struct virtqueue *vq);
+
+bool virtqueue_poll(struct virtqueue *vq, unsigned);
+
 bool virtqueue_enable_cb_delayed(struct virtqueue *vq);
 
 void *virtqueue_detach_unused_buf(struct virtqueue *vq);
-- 
cgit v0.10.2


From cbdadbbf0c790f79350a8f36029208944c5487d0 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 9 Jul 2013 08:13:04 +0300
Subject: virtio_net: fix race in RX VQ processing

virtio net called virtqueue_enable_cq on RX path after napi_complete, so
with NAPI_STATE_SCHED clear - outside the implicit napi lock.
This violates the requirement to synchronize virtqueue_enable_cq wrt
virtqueue_add_buf.  In particular, used event can move backwards,
causing us to lose interrupts.
In a debug build, this can trigger panic within START_USE.

Jason Wang reports that he can trigger the races artificially,
by adding udelay() in virtqueue_enable_cb() after virtio_mb().

However, we must call napi_complete to clear NAPI_STATE_SCHED before
polling the virtqueue for used buffers, otherwise napi_schedule_prep in
a callback will fail, causing us to lose RX events.

To fix, call virtqueue_enable_cb_prepare with NAPI_STATE_SCHED
set (under napi lock), later call virtqueue_poll with
NAPI_STATE_SCHED clear (outside the lock).

Reported-by: Jason Wang <jasowang@redhat.com>
Tested-by: Jason Wang <jasowang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index c9e0038..42d670a 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -602,7 +602,7 @@ static int virtnet_poll(struct napi_struct *napi, int budget)
 		container_of(napi, struct receive_queue, napi);
 	struct virtnet_info *vi = rq->vq->vdev->priv;
 	void *buf;
-	unsigned int len, received = 0;
+	unsigned int r, len, received = 0;
 
 again:
 	while (received < budget &&
@@ -619,8 +619,9 @@ again:
 
 	/* Out of packets? */
 	if (received < budget) {
+		r = virtqueue_enable_cb_prepare(rq->vq);
 		napi_complete(napi);
-		if (unlikely(!virtqueue_enable_cb(rq->vq)) &&
+		if (unlikely(virtqueue_poll(rq->vq, r)) &&
 		    napi_schedule_prep(napi)) {
 			virtqueue_disable_cb(rq->vq);
 			__napi_schedule(napi);
-- 
cgit v0.10.2


From 8c2f414ad1b3aa3af05791cd7312eb8ff9d80e0d Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 9 Jul 2013 16:17:04 +0200
Subject: net: sctp: confirm route during forward progress

This fix has been proposed originally by Vlad Yasevich. He says:

  When SCTP makes forward progress (receives a SACK that acks new chunks,
  renegs, or answeres 0-window probes) or when HB-ACK arrives, mark
  the route as confirmed so we don't unnecessarily send NUD probes.

Having a simple SCTP client/server that exchange data chunks every 1sec,
without this patch ARP requests are sent periodically every 40-60sec.
With this fix applied, an ARP request is only done once right at the
"session" beginning. Also, when clearing the related ARP cache entry
manually during the session, a new request is correctly done. I have
only "backported" this to net-next and tested that it works, so full
credit goes to Vlad.

Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index cb80a8e..ef9e2bb 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -1334,6 +1334,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 	__u8 restart_timer = 0;
 	int bytes_acked = 0;
 	int migrate_bytes = 0;
+	bool forward_progress = false;
 
 	sack_ctsn = ntohl(sack->cum_tsn_ack);
 
@@ -1400,6 +1401,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 				bytes_acked += sctp_data_size(tchunk);
 				if (!tchunk->transport)
 					migrate_bytes += sctp_data_size(tchunk);
+				forward_progress = true;
 			}
 
 			if (TSN_lte(tsn, sack_ctsn)) {
@@ -1413,6 +1415,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 				 * current RTO.
 				 */
 				restart_timer = 1;
+				forward_progress = true;
 
 				if (!tchunk->tsn_gap_acked) {
 					/*
@@ -1503,6 +1506,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 			 */
 			transport->error_count = 0;
 			transport->asoc->overall_error_count = 0;
+			forward_progress = true;
 
 			/*
 			 * While in SHUTDOWN PENDING, we may have started
@@ -1576,6 +1580,11 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 				       jiffies + transport->rto))
 				sctp_transport_hold(transport);
 		}
+
+		if (forward_progress) {
+			if (transport->dst)
+				dst_confirm(transport->dst);
+		}
 	}
 
 	list_splice(&tlist, transmitted_queue);
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index cf6f845..9da6885 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -730,6 +730,12 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
 		sctp_assoc_control_transport(asoc, t, SCTP_TRANSPORT_UP,
 					     SCTP_HEARTBEAT_SUCCESS);
 
+	/* HB-ACK was received for a the proper HB.  Consider this
+	 * forward progress.
+	 */
+	if (t->dst)
+		dst_confirm(t->dst);
+
 	/* The receiver of the HEARTBEAT ACK should also perform an
 	 * RTT measurement for that destination transport address
 	 * using the time value carried in the HEARTBEAT ACK chunk.
-- 
cgit v0.10.2


From 785bf6f7904352242d187ff6087d523a4ce1b3ac Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Mon, 8 Jul 2013 00:44:55 +0200
Subject: net: mv643xx_eth: do not use port number as platform device id

The port number is only local to the ethernet block, not global, so
there can be two ethernet blocks both using the same port, like
kirkwood with both using port 0.

Fix this by using the array index offset for the allocated platform
devices as the id.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 6495bea..c35db73 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2483,6 +2483,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
 	struct resource res;
 	const char *mac_addr;
 	int ret;
+	int dev_num = 0;
 
 	memset(&ppd, 0, sizeof(ppd));
 	ppd.shared = pdev;
@@ -2503,6 +2504,14 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
 		return -EINVAL;
 	}
 
+	while (dev_num < 3 && port_platdev[dev_num])
+		dev_num++;
+
+	if (dev_num == 3) {
+		dev_err(&pdev->dev, "too many ports registered\n");
+		return -EINVAL;
+	}
+
 	mac_addr = of_get_mac_address(pnp);
 	if (mac_addr)
 		memcpy(ppd.mac_addr, mac_addr, 6);
@@ -2521,7 +2530,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
 		of_property_read_u32(pnp, "duplex", &ppd.duplex);
 	}
 
-	ppdev = platform_device_alloc(MV643XX_ETH_NAME, ppd.port_number);
+	ppdev = platform_device_alloc(MV643XX_ETH_NAME, dev_num);
 	if (!ppdev)
 		return -ENOMEM;
 	ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
@@ -2538,7 +2547,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
 	if (ret)
 		goto port_err;
 
-	port_platdev[ppd.port_number] = ppdev;
+	port_platdev[dev_num] = ppdev;
 
 	return 0;
 
-- 
cgit v0.10.2


From dd7633ecd553a5e304d349aa6f8eb8a0417098c5 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Sun, 7 Jul 2013 14:26:53 +0300
Subject: vhost-net: fix use-after-free in vhost_net_flush

vhost_net_ubuf_put_and_wait has a confusing name:
it will actually also free it's argument.
Thus since commit 1280c27f8e29acf4af2da914e80ec27c3dbd5c01
    "vhost-net: flush outstanding DMAs on memory change"
vhost_net_flush tries to use the argument after passing it
to vhost_net_ubuf_put_and_wait, this results
in use after free.
To fix, don't free the argument in vhost_net_ubuf_put_and_wait,
add an new API for callers that want to free ubufs.

Acked-by: Asias He <asias@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index f80d3dd..8ca5ac7 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -150,6 +150,11 @@ static void vhost_net_ubuf_put_and_wait(struct vhost_net_ubuf_ref *ubufs)
 {
 	kref_put(&ubufs->kref, vhost_net_zerocopy_done_signal);
 	wait_event(ubufs->wait, !atomic_read(&ubufs->kref.refcount));
+}
+
+static void vhost_net_ubuf_put_wait_and_free(struct vhost_net_ubuf_ref *ubufs)
+{
+	vhost_net_ubuf_put_and_wait(ubufs);
 	kfree(ubufs);
 }
 
@@ -948,7 +953,7 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
 	mutex_unlock(&vq->mutex);
 
 	if (oldubufs) {
-		vhost_net_ubuf_put_and_wait(oldubufs);
+		vhost_net_ubuf_put_wait_and_free(oldubufs);
 		mutex_lock(&vq->mutex);
 		vhost_zerocopy_signal_used(n, vq);
 		mutex_unlock(&vq->mutex);
@@ -966,7 +971,7 @@ err_used:
 	rcu_assign_pointer(vq->private_data, oldsock);
 	vhost_net_enable_vq(n, vq);
 	if (ubufs)
-		vhost_net_ubuf_put_and_wait(ubufs);
+		vhost_net_ubuf_put_wait_and_free(ubufs);
 err_ubufs:
 	fput(sock->file);
 err_vq:
-- 
cgit v0.10.2


From e057590b05bc120732967a04d63c15f2f82cdd2b Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date: Mon, 8 Jul 2013 11:22:51 +0400
Subject: drivers/net: enic: release rtnl_lock on error-path

enic_change_mtu_work() must call rtnl_unlock() on all exiting paths.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Christian Benvenuti <benve@cisco.com>
Cc: Roopa Prabhu <roprabhu@cisco.com>
Cc: Neel Patel <neepatel@cisco.com>
Cc: Nishank Trivedi <nistrive@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 635f559..992ec2e 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1761,6 +1761,7 @@ static void enic_change_mtu_work(struct work_struct *work)
 	enic_synchronize_irqs(enic);
 	err = vnic_rq_disable(&enic->rq[0]);
 	if (err) {
+		rtnl_unlock();
 		netdev_err(netdev, "Unable to disable RQ.\n");
 		return;
 	}
@@ -1773,6 +1774,7 @@ static void enic_change_mtu_work(struct work_struct *work)
 	vnic_rq_fill(&enic->rq[0], enic_rq_alloc_buf);
 	/* Need at least one buffer on ring to get going */
 	if (vnic_rq_desc_used(&enic->rq[0]) == 0) {
+		rtnl_unlock();
 		netdev_err(netdev, "Unable to alloc receive buffers.\n");
 		return;
 	}
-- 
cgit v0.10.2


From 56e0ef527b184b3de2d7f88c6190812b2b2ac6bf Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date: Mon, 8 Jul 2013 11:23:04 +0400
Subject: drivers/net: caif: fix wrong rtnl_is_locked() usage

rtnl_is_locked() doesn't check who holds this lock, it just tells that it's
locked right now. if caif::ldisc_close really can be called under rtrnl_lock
then it should release net device in other context because there is no way
to grab rtnl_lock without deadlock.

This patch adds work which releases these devices. Also this patch fixes calling
dev_close/unregister_netdevice without rtnl_lock from caif_ser_exit().

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index 77be3cb..34dea95 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -35,8 +35,9 @@ MODULE_ALIAS_LDISC(N_CAIF);
 #define OFF 0
 #define CAIF_MAX_MTU 4096
 
-/*This list is protected by the rtnl lock. */
+static DEFINE_SPINLOCK(ser_lock);
 static LIST_HEAD(ser_list);
+static LIST_HEAD(ser_release_list);
 
 static bool ser_loop;
 module_param(ser_loop, bool, S_IRUGO);
@@ -308,6 +309,28 @@ static void ldisc_tx_wakeup(struct tty_struct *tty)
 }
 
 
+static void ser_release(struct work_struct *work)
+{
+	struct list_head list;
+	struct ser_device *ser, *tmp;
+
+	spin_lock(&ser_lock);
+	list_replace_init(&ser_release_list, &list);
+	spin_unlock(&ser_lock);
+
+	if (!list_empty(&list)) {
+		rtnl_lock();
+		list_for_each_entry_safe(ser, tmp, &list, node) {
+			dev_close(ser->dev);
+			unregister_netdevice(ser->dev);
+			debugfs_deinit(ser);
+		}
+		rtnl_unlock();
+	}
+}
+
+static DECLARE_WORK(ser_release_work, ser_release);
+
 static int ldisc_open(struct tty_struct *tty)
 {
 	struct ser_device *ser;
@@ -321,6 +344,9 @@ static int ldisc_open(struct tty_struct *tty)
 	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_TTY_CONFIG))
 		return -EPERM;
 
+	/* release devices to avoid name collision */
+	ser_release(NULL);
+
 	sprintf(name, "cf%s", tty->name);
 	dev = alloc_netdev(sizeof(*ser), name, caifdev_setup);
 	if (!dev)
@@ -341,7 +367,9 @@ static int ldisc_open(struct tty_struct *tty)
 		return -ENODEV;
 	}
 
+	spin_lock(&ser_lock);
 	list_add(&ser->node, &ser_list);
+	spin_unlock(&ser_lock);
 	rtnl_unlock();
 	netif_stop_queue(dev);
 	update_tty_status(ser);
@@ -351,19 +379,13 @@ static int ldisc_open(struct tty_struct *tty)
 static void ldisc_close(struct tty_struct *tty)
 {
 	struct ser_device *ser = tty->disc_data;
-	/* Remove may be called inside or outside of rtnl_lock */
-	int islocked = rtnl_is_locked();
 
-	if (!islocked)
-		rtnl_lock();
-	/* device is freed automagically by net-sysfs */
-	dev_close(ser->dev);
-	unregister_netdevice(ser->dev);
-	list_del(&ser->node);
-	debugfs_deinit(ser);
 	tty_kref_put(ser->tty);
-	if (!islocked)
-		rtnl_unlock();
+
+	spin_lock(&ser_lock);
+	list_move(&ser->node, &ser_release_list);
+	spin_unlock(&ser_lock);
+	schedule_work(&ser_release_work);
 }
 
 /* The line discipline structure. */
@@ -438,16 +460,11 @@ static int __init caif_ser_init(void)
 
 static void __exit caif_ser_exit(void)
 {
-	struct ser_device *ser = NULL;
-	struct list_head *node;
-	struct list_head *_tmp;
-
-	list_for_each_safe(node, _tmp, &ser_list) {
-		ser = list_entry(node, struct ser_device, node);
-		dev_close(ser->dev);
-		unregister_netdevice(ser->dev);
-		list_del(node);
-	}
+	spin_lock(&ser_lock);
+	list_splice(&ser_list, &ser_release_list);
+	spin_unlock(&ser_lock);
+	ser_release(NULL);
+	cancel_work_sync(&ser_release_work);
 	tty_unregister_ldisc(N_CAIF);
 	debugfs_remove_recursive(debugfsdir);
 }
-- 
cgit v0.10.2